Some standard content:
Machinery Industry Standard of the People's Republic of China
JB/T 7549. 3-94
Roll-type sealing machine
Published on December 9, 1994
Published by the Ministry of Machinery Industry of the People's Republic of China
Implementation on October 1, 1995
Machinery Industry Standard of the People's Republic of China
Roll-type sealing machine
Subject content and scope of application
JB/T 7549. 3-94
This standard specifies the product classification, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage requirements of roll-type sealing machines.
This standard applies to automatic and semi-automatic roller-type vacuum sealers for 500mL canned bottles (in accordance with the provisions of ZBY22008) and 250mL canned bottles (sealing line diameter 61mm, height 88mm), and also applies to automatic and semi-automatic roller-type vacuum sealers for cans of other volumes (hereinafter referred to as sealers). 2 Reference standards
GB 191
GB 2894
GB 3785
GB5226
GB6388
GB7311
GB/T 13306
GB/T 13384
ZBY22 008
3 Product classification
3.1 Type
a.
Packaging storage and transportation pictorial signs
Safety signs
Electrical and acoustic performance and test methods of sound level meters General technical conditions for machine tool electrical equipment
Transport packaging receiving and shipping signs
Packaging machinery model compilation method
Signs
General technical conditions for electromechanical product packaging
500mL canned bottles
Semi-automatic sealing machine: manual bottle feeding, machine sealing, manual bottle discharging. b.
Automatic sealing machine: automatic bottle feeding, machine sealing, automatic bottle discharging. 3.2 Basic parameters
The basic parameters of the sealing machine shall comply with the provisions of Table 1. Table 1
Model
Productivity bottle/min
Electricity consumption of loading motorEnergy consumption allocated to each bottle sealing kJWorkbench height
Approved by the Ministry of Machinery Industry on December 9, 1994
Semi-automatic
FG500 FG250
25~45
0.7~1.1
700\uff5e800
Automatic
FGZ500 FGZ250
10-01, 1995 Implementation
Overall dimensions mm
Weight kg
3.3Model indication method
JB/T 7549. 3 - 94
Continued Table 1
Semi-automatic
800~850
650~700
1400~1600
1000\uff5e1300
800~900
1500\uff5e1750
The product model shall comply with the provisions of GB7311 and consist of uppercase Chinese phonetic letters and Arabic numerals. The expression method is as follows: FG
Main parameters: Canning bottle volume, mL
Structural type code: "Z" for automatic, no name for semi-automatic Code: Roller type sealing machine
4 Technical requirements
4.1 General requirements
The sealing machine shall comply with the provisions of this standard and be manufactured according to the drawings and technical documents approved through the prescribed procedures. 4.1.1
The sealing machine should ensure the tightness of the canned bottle after sealing. 4.1.2
4. 1. 3
The circuit of the sealing machine should be sealed reliably without obstruction. When the air circuit pressure is between 40 and 20 kPa, turn off the gas source. After 10 seconds, the pressure increment should not be greater than 13.3 kPa.
4. 1.4
4.1.5
4.1.6
The parts in contact with the canned bottle and the bottle cap should be corrosion-resistant and non-toxic. During the sealing process of the sealing machine, the contents of the can should not be polluted. The working table of the sealing machine should be equipped with a protective device to prevent the canned bottle from dislocating. The sealing machine should be equipped with a positioning device for the canned bottle. 4.1.7
4.1.8 The productivity and energy consumption of the sealing machine shall comply with the provisions of Article 3.2, of which the productivity deviation of the automatic sealing machine shall be \u00b15%. 4.2 Comprehensive quality
4.2.1 When the sealing machine works within the specified productivity range, when the head pressure is not higher than 40kPa, the pressure established in the canned bottle shall not be higher than 60kPa.
During the operation of the sealing machine, the canned cans are damaged due to machine reasons, and the bottle breakage rate shall not exceed 0.4%. 4.2.21
After sealing, the lid has no skirt and no scratches that damage the anti-corrosion layer. 4. 2.3
4.2.4
The effectiveness of the sealing machine shall not be less than 85%.
The total life of the sealing machine shall not be less than 8 years (two-shift system), and major repairs are allowed during this period, and the number of times shall not exceed 3 times. 4.2.5
The noise of the sealing machine shall not exceed 85dBA).
4.2.6
4.2.7
The electrical control of the sealing machine shall be safe and reliable, and the insulation resistance between the live parts and the metal shell of the machine body shall not be less than 1MQ. The sealing machine shall have good grounding protection measures and markings, and the resistance value between the external protection line terminal and any exposed conductor parts of the electrical equipment and the casing4.2.8
shall not be greater than 0.1Q.
4.2.9 The exposed belt drive shall have a protective cover. The lubrication system shall work normally and there shall be no oil leakage. 4. 2. 10
4.2.11 The sealing machine shall be equipped with lifting holes or rings. 4.3 Assembly quality
JB/T 7549. 3-94
After final assembly, all relatively moving parts shall move flexibly without jamming. 4.3.1
4.3.2 The opening and closing of the air valve of the sealing machine should be accurate and reliable. 4.4 Appearance quality
The weld seam of the exposed welded parts should be flat and free of obvious depressions or protrusions. 4.4.12
4.4.2 The coating surface should be smooth and have a medium gloss. No obvious dirt, obvious sagging, repair marks or color difference are allowed. 4.4.3 The coating should have sufficient hardness, elasticity and adhesion. 4.5 Completeness
4.5.1 Scope of complete set supply
Main unit
Consumable parts and special tools
Random documents (certificate of conformity, instruction manual, packing list)4.5.2 Requirements for completeness
1 unit
1 set each
1 set
The sealing machine should be used in conjunction with a vacuum pump and a vacuum storage tank. The supporting equipment should meet the following requirements: The vacuum source should ensure that the pumping rate is not less than 1.5m/min when the pressure is 40kPa, and the ultimate vacuum of the vacuum pump is not higher than 2.67kPa.
Vacuum storage tank: volume 0.3~\uff5e0.5m2.
4.6 Quality Assurance
If the user complies with the installation and use rules of the product, the manufacturer shall repair or replace the product free of charge (except wearing parts) if the product cannot work normally due to poor manufacturing quality within 18 months from the date of delivery or within 12 months from the date of installation. 5 Test method
Test equipment and instruments
Vacuum pump
Vacuum storage tank
Check valve
Pipeline and pipeline switch
2.5-level accuracy vacuum gauge (with pin)
Type I sound level meter
Stopwatch
2.5-level accuracy megohmmeter
2.5-level accuracy watt-hour meter
5.2 Test device
The test device is as shown in Figure 1:
1 unit
1 unit
1 unit
1 unit
1 unit
1 unit
1 unit
1 unit
1 unit
1 unit
1 unit
1 unit
1 unit
1 unit
1 unit
1 unit
1 unit
JB/T 7549.3\u201494
Figure 1
1\u2014Vacuum pump 2\u2014One-way valve; 3\u2014Vacuum regulator (storage tank); 4\u2014Pipeline switch; 5\u2014Sealing machine 5.3 Test conditions and procedures
5.3.1 When testing whether the sealing machine has an impact on the contents of the can, the test site should comply with food hygiene regulations (generally carried out in the actual can production workshop of the canning factory).
5.3.2 The temperature of the test site shall not be lower than 5\u00b0C. 5.3.3 The operator should be skilled.
5.3.4 Before the test, the flexibility of the moving parts of the vacuum pump and the sealing machine and the tightness of the joints should be checked. 5.3.5 During the test, start the vacuum pump first. When the pressure in the vacuum storage tank is 20kPa, start the sealing machine and conduct a 0.5h idle operation test. 5.4 Test content
5.4.1 Gas circuit sealing test
When the vacuum chamber of the sealing machine head is in a sealed state and the pressure of the vacuum storage tank reaches 20kPa, the head pressure reading should not be higher than 5.4.1.11
40kPa.
5.4.1.2 When the head pressure reading is between 40~~20kPa, turn off the gas source, and after 10s, the pressure increment is not greater than 13.3kPa. 5.4.2 Sealing test (simulating canned food production) Under the conditions of 5.3.5, fill the canned food bottles with water to 10~20mm from the bottle mouth and cover them with bottle caps with rubber rings for continuous sealing test. Under the specified productivity conditions, seal 1000 bottles and record the number of broken bottles. Use a stopwatch to time the total number of bottles sealed in 5 minutes at random, and calculate the productivity. 5.5 Test, Inspection and Evaluation
5.5.1 Productivity: Take the arithmetic mean of the total number of bottles sealed within 5 minutes recorded during the sealing test. 5.5.2 Pressure inside the bottle: Take the sealed canned bottles and conduct destructive inspection with a vacuum gauge, record the pressure of each bottle after sealing (the number of bottles with pressure higher than 74kPa shall not exceed 2% of the number of canned bottles taken), and calculate the pressure inside the bottle according to formula (1): p
Where: n\u2014number of canned bottles taken (- generally 50 to 100 bottles are taken as an evaluation group); p: pressure of the i-th bottle with a pressure not higher than 74kPa; number of canned bottles with a pressure higher than 74kPa. r
5.5.3 Observe the bottle cap with naked eyes to see if there is a skirt or scratches that damage the anti-corrosion layer. 5.5.4 Sealing tightness: After opening the canned bottle cap and removing the rubber ring, the indentation should be continuous and uninterrupted. 5.5.5 Bottle breakage rate: The ratio of the number of broken bottles during the sealing test to the total number of canned bottles. (1)
5.5.6 Determination of whether the canned contents have new contamination: When the sealing machine is working, randomly select 4 adjacent bottles, of which 2 bottles are sealed and 2 bottles are not sealed. Test the harmful content of the canned contents together and compare the test results. 5.5.7 Visually check the requirements of 4.1.6, 4.1.7, 4.2.9~4.2.11, 4.4.1, and 4.4.2. 5.5.8 The effectiveness test of the sealing machine shall be carried out in accordance with Appendix A (Supplement). 5.5.9 For the life test, test points should be established in the user, and test records should be kept. The user shall provide the test results or the statutory quality supervision department shall issue the test results.
5.5.10 Noise measurement
Testing instrument: Type I sound level meter specified in GB3785. a.
No obstacles should be placed around the sealing machine, and the distance from the wall should not be less than 2000mm. Position of microphone measuring point: The height from the ground and the distance from the sealing machine are 1500mm and 1000mm respectively, and 4 measuring points are selected along the periphery of the sealing machine. c.
d. When measuring, the background noise (i.e. the ambient noise when the sealing machine is not running) should be measured first, and its position is the same as the noise measurement position of the sealing machine. If the difference between the background noise sound pressure level and the noise sound pressure level when the sealing machine is running is less than 3dB(A), the measurement result is invalid. If the difference is less than 10dB(A) and greater than or equal to 3dB(A), the noise of each measuring point of the sealing machine is obtained after correction according to Table 2. Table 2
Lp -- Lpo
In the table: Lpl-noise sound pressure level when the sealing machine is running Lpo-background noise sound pressure level;
\u25b3Lp-correction value to be subtracted from Lpi. The actual noise of each measuring point is calculated according to formula 2): Lp=LP1-\u25b3Lp
6\uff5e9
dB(A)
e. Under load operation, after measuring the noise at each point, take the highest value, which is the noise sound pressure level of the sealing machine, which should meet the requirements of 4.2.6 series.
5.5.11Measure the insulation resistance and grounding resistance according to the method specified in GB5226. 5.5.12Check the requirements of the design and process documents according to the requirements of Article 4.1.4. 5.5.13Visually evaluate the requirements of Article 4.4.3, including: Coating hardness: Scratch the coating with a fingernail. If there is no mark, the coating hardness is considered to be sufficient. a.
Coating elasticity: Scrape the coating with a sharp knife. If the scraps do not break, do not stick together, and roll up elastically, the coating is considered to be elastic.
Coating adhesion: Scratch a cross-shaped crack on the coating. If it is not easy to peel off along the edge of the crack, it is qualified. c.
5.5.14Turn on the machine and visually check the requirements of Article 4.3. 5.5.15Electricity consumption per bottle is measured by an electric meter, and then calculated according to productivity. 6 Inspection rules
6.1 Each sealing machine must be inspected and qualified by the quality inspection department of the manufacturer according to this standard and be accompanied by a product certificate before it can leave the factory. 6.2 Factory inspection of sealing machines
6.2.1 Each sealing machine should be inspected for 4.1.3, 4.1.6, 4.1.7, 4.2.9~4.2.11, 4.3, 4.4.1, 4.4.2 according to the prescribed method before leaving the factory.
6.2.2 Each batch of sealing machines leaving the factory should be inspected for 4.1.2, 4.2.1, 4.2.6, 4.2.7 and the energy consumption of the motor to each bottle sealing according to the prescribed method by sampling 5% of the batch (at least 3 units). 6.3 Type inspection of sealing machine
JB/T 7549.3-94
6.3.1 Type inspection shall be carried out in any of the following cases, and its contents and methods shall be in accordance with the provisions of Chapter 5: Trial production and appraisal of new products or old products transferred to the factory for production; a.
After the formal production of the product, its structure, process and materials have major changes; b.
After the formal production of the product, regular inspection shall be carried out once a year: c.
When the national quality supervision agency proposes a requirement for type inspection. d.
6.3.2 Two units shall be selected for type inspection. If one unit fails, double inspection shall be carried out, and the result shall be the final result. 7 Marking, packaging, transportation and storage
7.1 Marking
7.1.1 The sealing machine should have trademarks and signs. The signs should comply with the provisions of GB/T13306 and should at least have the following: a.
Product model and name;
Nominal productivity:
Motor power;
Factory number and date of manufacture;
Manufacturer's name.
7.1.2 The sealing machine should have instructions for each control device, such as "start" and "stop". 7.1.3 The power switch should be marked with the words "on" and "off", and the electrical box should be marked with "caution of electric shock" according to GB2894. 7.1.4 There should be a rotation direction mark at a location close to the power source and where the rotation direction is easy to observe. 7.1.5 The markings on the packaging box should comply with the provisions of GB191 and GB6388. 7.2 Packaging
7.2.1 The sealing machine should be firmly fixed in the packaging box. 7.2.2 The packaging box should comply with the provisions of GB/T13384. 7.3 Transportation
7.3.1 The sealing machine should be covered during transportation. 7.3.2 The packaging box of the sealing machine is not allowed to collide during transportation. 7.4 Storage
7.4.1 The sealing machine should be stored in a covered dry place. 7.4.2 The sealing machine should be rust-proofed if it is stored for more than 6 months. 6
A1 Test and evaluation method of effectiveness
JB/T 7549. 3--94
Appendix A
Effectiveness test
(Supplement)
A1.1 The effectiveness test should be carried out at the canning production site or under the working environment and conditions simulating the canning production site. A1.2 The minimum test time is 16h.
A1.3 Fill in the record card during the test, which includes the actual working time of the machine, downtime (abnormal operation, broken bottles, damaged parts, machine adjustment, etc., the time of lubrication and cleaning of the sealing machine is not included) and the reason. A1.4 Determine the calculated value of the effectiveness, and calculate according to formula (A1): A
Where A
effectiveness;
Number of intermittent working;
ts:\u2014\u2014i times of intermittent working time;
tt:\u2014i times of intermittent (downtime) time.
Additional instructions:
X 100%
This standard was proposed and managed by the Hefei General Machinery Research Institute of the Ministry of Machinery Industry. This standard was drafted by Sichuan Nanpu Machinery Factory. The main drafters of this standard are Tang Yifeng and Liao Mouxi. \u00b7(Al)5. Fill canned bottles with water to 10-20 mm from the bottle mouth and cover them with rubber rings for continuous sealing test. Under the specified production rate conditions, seal 1000 bottles and record the number of broken bottles. Use a stopwatch to count the total number of bottles sealed in 5 minutes and calculate the production rate. 5.5 Test and Evaluation
5.5.1 Production rate: Take the arithmetic mean of the total number of bottles sealed in 5 minutes recorded during the sealing test. 5.5.2 Pressure inside the bottle: Take out the sealed canned bottles, and use a vacuum gauge to perform a destructive inspection. Record the pressure of each bottle after sealing (the number of bottles with a pressure higher than 74kPa shall not exceed 2% of the number of canned bottles taken). The pressure inside the bottle is calculated according to formula (1): p
Where: n\u2014the number of canned bottles taken (- generally 50 to 100 bottles are taken as an evaluation group); p: the pressure of the ith bottle with an internal pressure not higher than 74kPa; the number of canned bottles with an internal pressure higher than 74kPa. r
5.5.3 Observe the bottle cap with the naked eye to see if there is a skirt or scratches that damage the anti-corrosion layer. 5.5.4 Sealing tightness: Open the canned bottle cap after sealing, take out the rubber ring, and its indentation should be continuous and uninterrupted. 5.5.5 Bottle breakage rate: the ratio of the number of broken bottles to the total number of canned bottles during the sealing test. (1)
5.5.6 Determination of new contamination in canned food contents: When the sealing machine is working, randomly select 4 adjacent cans, 2 of which are sealed and 2 are not sealed, and test the harmful substances in the canned food contents together, and compare the test results. 5.5.7 Visually inspect the requirements of 4.1.6, 4.1.7, 4.2.9~4.2.11, 4.4.1, and 4.4.2. 5.5.8 The effectiveness test of the sealing machine shall be carried out in accordance with Appendix A (Supplement). 5.5.9 The user shall establish a test point for the life test, keep good test records, and the user shall provide the test results or the statutory quality supervision department shall issue the test results.
5.5.10 Noise measurement
Testing instrument: Type I sound level meter specified in GB3785. a.
There should be no obstacles around the sealing machine, and the distance from the wall should not be less than 2000mm. Microphone measurement point location: The height from the ground and the distance from the sealing machine are 1500mm and 1000mm respectively, and 4 measurement points are selected along the periphery of the sealing machine.
d. When measuring, the background noise (i.e. the ambient noise when the sealing machine is not running) should be measured first, and its position is the same as the sealing machine noise measurement position. If the difference between the background noise sound pressure level and the noise sound pressure level when the sealing machine is running is less than 3dB(A), the measurement result is invalid. If the difference is less than 10dB(A) and greater than or equal to 3dB(A), the noise of each measuring point of the sealing machine is obtained after correction according to Table 2. Table 2
Lp -- Lpo
In the table: Lpl-noise sound pressure level when the sealing machine is running Lpo-background noise sound pressure level;
\u25b3Lp-correction value to be subtracted from Lpi. The actual noise at each measuring point is calculated according to formula 2): Lp=LP1-\u25b3Lp
6\uff5e9
dB(A)
e. Under load operation, after measuring the noise at each point, take the highest value, which is the noise sound pressure level of the sealing machine, which should comply with the provisions of 4.2.6 series.
5.5.11 Measure the insulation resistance and grounding resistance according to the method specified in GB5226. 5.5.12 According to the requirements of Article 4.1.4, the provisions of the design and process documents should be checked. 5.5.13 Sensory evaluation of the requirements of Article 4.4.3, among which: Coating hardness: scratch the coating with a fingernail, and if there is no mark, the coating hardness is considered to be sufficient. a.
Elasticity of coating film: Scrape the coating film with a sharp knife. If the scraps do not break, do not stick together and roll up elastically, the coating film is considered to be elastic.
Adhesion of coating film: Make a cross-shaped crack on the coating film. If it is not easy to peel off along the edge of the crack, it is qualified. c.
5.5.14 Visually inspect the requirements specified in Article 4.3 when turning on the machine. 5.5.15 The power consumption of each bottle is measured by an electric meter and then calculated based on the productivity. 6 Inspection rules
6.1 Each sealing machine must be inspected and qualified by the quality inspection department of the manufacturer according to this standard and be accompanied by a product certificate before it can leave the factory. 6.2 Factory inspection of sealing machines
6.2.1 Each sealing machine shall be inspected for 4.1.3, 4.1.6, 4.1.7, 4.2.9~4.2.11, 4.3, 4.4.1, 4.4.2 according to the prescribed method before leaving the factory.
6.2.2 Each batch of sealing machines leaving the factory shall be inspected for 4.1.2, 4.2.1, 4.2.6, 4.2.7 and the energy consumption of the motor power allocated to each bottle sealing according to the prescribed method by sampling 5% of the batch (at least 3 units). 6.3 Type inspection of sealing machine
JB/T 7549.3-94
6.3.1 Type inspection shall be carried out in any of the following cases, and its contents and methods shall be in accordance with the provisions of Chapter 5: Trial production and appraisal of new products or old products transferred to the factory for production; a.
After the formal production of the product, its structure, process and materials have major changes; b.
After the formal production of the product, regular inspection shall be carried out once a year: c.
When the national quality supervision agency proposes a requirement for type inspection. d.
6.3.2 Two units shall be selected for type inspection. If one unit fails, double inspection shall be carried out, and the result shall be the final result. 7 Marking, packaging, transportation and storage
7.1 Marking
7.1.1 The sealing machine should have trademarks and signs. The signs should comply with the provisions of GB/T13306 and should at least have the following: a.
Product model and name;
Nominal productivity:
Motor power;
Factory number and date of manufacture;
Manufacturer's name.
7.1.2 The sealing machine should have instructions for each control device, such as "start" and "stop". 7.1.3 The power switch should be marked with the words "on" and "off", and the electrical box should be marked with "caution of electric shock" according to GB2894. 7.1.4 There should be a rotation direction mark at a location close to the power source and where the rotation direction is easy to observe. 7.1.5 The markings on the packaging box should comply with the provisions of GB191 and GB6388. 7.2 Packaging
7.2.1 The sealing machine should be firmly fixed in the packaging box. 7.2.2 The packaging box should comply with the provisions of GB/T13384. 7.3 Transportation
7.3.1 The sealing machine should be covered during transportation. 7.3.2 The packaging box of the sealing machine is not allowed to collide during transportation. 7.4 Storage
7.4.1 The sealing machine should be stored in a covered dry place. 7.4.2 The sealing machine should be rust-proofed if it is stored for more than 6 months. 6
A1 Test and evaluation method of effectiveness
JB/T 7549. 3--94
Appendix A
Effectiveness test
(Supplement)
A1.1 The effectiveness test should be carried out at the canning production site or under the working environment and conditions simulating the canning production site. A1.2 The minimum test time is 16h.
A1.3 Fill in the record card during the test, which includes the actual working time of the machine, downtime (abnormal operation, broken bottles, damaged parts, machine adjustment, etc., the time of lubrication and cleaning of the sealing machine is not included) and the reason. A1.4 Determine the calculated value of the effectiveness, and calculate according to formula (A1): A
Where A
effectiveness;
Number of intermittent working;
ts:\u2014\u2014i times of intermittent working time;
tt:\u2014i times of intermittent (downtime) time.
Additional instructions:
X 100%
This standard was proposed and managed by the Hefei General Machinery Research Institute of the Ministry of Machinery Industry. This standard was drafted by Sichuan Nanpu Machinery Factory. The main drafters of this standard are Tang Yifeng and Liao Mouxi. \u00b7(Al)5. Fill canned bottles with water to 10-20 mm from the bottle mouth and cover them with rubber rings for continuous sealing test. Under the specified production rate conditions, seal 1000 bottles and record the number of broken bottles. Use a stopwatch to count the total number of bottles sealed in 5 minutes and calculate the production rate. 5.5 Test and Evaluation
5.5.1 Production rate: Take the arithmetic mean of the total number of bottles sealed in 5 minutes recorded during the sealing test. 5.5.2 Pressure inside the bottle: Take out the sealed canned bottles, and use a vacuum gauge to perform a destructive inspection. Record the pressure of each bottle after sealing (the number of bottles with a pressure higher than 74kPa shall not exceed 2% of the number of canned bottles taken). The pressure inside the bottle is calculated according to formula (1): p
Where: n\u2014the number of canned bottles taken (- generally 50 to 100 bottles are taken as an evaluation group); p: the pressure of the ith bottle with an internal pressure not higher than 74kPa; the number of canned bottles with an internal pressure higher than 74kPa. r
5.5.3 Observe the bottle cap with the naked eye to see if there is a skirt or scratches that damage the anti-corrosion layer. 5.5.4 Sealing tightness: Open the canned bottle cap after sealing, take out the rubber ring, and its indentation should be continuous and uninterrupted. 5.5.5 Bottle breakage rate: the ratio of the number of broken bottles to the total number of canned bottles during the sealing test. (1)
5.5.6 Determination of new contamination in canned food contents: When the sealing machine is working, randomly select 4 adjacent cans, 2 of which are sealed and 2 are not sealed, and test the harmful substances in the canned food contents together, and compare the test results. 5.5.7 Visually inspect the requirements of 4.1.6, 4.1.7, 4.2.9~4.2.11, 4.4.1, and 4.4.2. 5.5.8 The effectiveness test of the sealing machine shall be carried out in accordance with Appendix A (Supplement). 5.5.9 The user shall establish a test point for the life test, keep good test records, and the user shall provide the test results or the statutory quality supervision department shall issue the test results.
5.5.10 Noise measurement
Testing instrument: Type I sound level meter specified in GB3785. a.
There should be no obstacles around the sealing machine, and the distance from the wall should not be less than 2000mm. Microphone measurement point location: The height from the ground and the distance from the sealing machine are 1500mm and 1000mm respectively, and 4 measurement points are selected along the periphery of the sealing machine.
d. When measuring, the background noise (i.e. the ambient noise when the sealing machine is not running) should be measured first, and its position is the same as the sealing machine noise measurement position. If the difference between the background noise sound pressure level and the noise sound pressure level when the sealing machine is running is less than 3dB(A), the measurement result is invalid. If the difference is less than 10dB(A) and greater than or equal to 3dB(A), the noise of each measuring point of the sealing machine is obtained after correction according to Table 2. Table 2
Lp -- Lpo
In the table: Lpl-noise sound pressure level when the sealing machine is running Lpo-background noise sound pressure level;
\u25b3Lp-correction value to be subtracted from Lpi. The actual noise at each measuring point is calculated according to formula 2): Lp=LP1-\u25b3Lp
6\uff5e9
dB(A)
e. Under load operation, after measuring the noise at each point, take the highest value, which is the noise sound pressure level of the sealing machine, which should comply with the provisions of 4.2.6 series.
5.5.11 Measure the insulation resistance and grounding resistance according to the method specified in GB5226. 5.5.12 According to the requirements of Article 4.1.4, the provisions of the design and process documents should be checked. 5.5.13 Sensory evaluation of the requirements of Article 4.4.3, among which: Coating hardness: scratch the coating with a fingernail, and if there is no mark, the coating hardness is considered to be sufficient. a.
Elasticity of coating film: Scrape the coating film with a sharp knife. If the scraps do not break, do not stick together and roll up elastically, the coating film is considered to be elastic.
Adhesion of coating film: Make a cross-shaped crack on the coating film. If it is not easy to peel off along the edge of the crack, it is qualified. c.
5.5.14 Visually inspect the requirements specified in Article 4.3 when turning on the machine. 5.5.15 The power consumption of each bottle is measured by an electric meter and then calculated based on the productivity. 6 Inspection rules
6.1 Each sealing machine must be inspected and qualified by the quality inspection department of the manufacturer according to this standard and be accompanied by a product certificate before it can leave the factory. 6.2 Factory inspection of sealing machines
6.2.1 Each sealing machine shall be inspected for 4.1.3, 4.1.6, 4.1.7, 4.2.9~4.2.11, 4.3, 4.4.1, 4.4.2 according to the prescribed method before leaving the factory.
6.2.2 Each batch of sealing machines leaving the factory shall be inspected for 4.1.2, 4.2.1, 4.2.6, 4.2.7 and the energy consumption of the motor power allocated to each bottle sealing according to the prescribed method by sampling 5% of the batch (at least 3 units). 6.3 Type inspection of sealing machine
JB/T 7549.3-94
6.3.1 Type inspection shall be carried out in any of the following cases, and its contents and methods shall be in accordance with the provisions of Chapter 5: Trial production and appraisal of new products or old products transferred to the factory for production; a.
After the formal production of the product, its structure, process and materials have major changes; b.
After the formal production of the product, regular inspection shall be carried out once a year: c.
When the national quality supervision agency proposes a requirement for type inspection. d.
6.3.2 Two units shall be selected for type inspection. If one unit fails, double inspection shall be carried out, and the result shall be the final result. 7 Marking, packaging, transportation and storage
7.1 Marking
7.1.1 The sealing machine should have trademarks and signs. The signs should comply with the provisions of GB/T13306 and should at least have the following: a.
Product model and name;
Nominal productivity:
Motor power;
Factory number and date of manufacture;
Manufacturer's name.
7.1.2 The sealing machine should have instructions for each control device, such as "start" and "stop". 7.1.3 The power switch should be marked with the words "on" and "off", and the electrical box should be marked with "caution of electric shock" according to GB2894. 7.1.4 There should be a rotation direction mark at a location close to the power source and where the rotation direction is easy to observe. 7.1.5 The markings on the packaging box should comply with the provisions of GB191 and GB6388. 7.2 Packaging
7.2.1 The sealing machine should be firmly fixed in the packaging box. 7.2.2 The packaging box should comply with the provisions of GB/T13384. 7.3 Transportation
7.3.1 The sealing machine should be covered during transportation. 7.3.2 The packaging box of the sealing machine is not allowed to collide during transportation. 7.4 Storage
7.4.1 The sealing machine should be stored in a covered dry place. 7.4.2 The sealing machine should be rust-proofed if it is stored for more than 6 months. 6
A1 Test and evaluation method of effectiveness
JB/T 7549. 3--94
Appendix A
Effectiveness test
(Supplement)
A1.1 The effectiveness test should be carried out at the canning production site or under the working environment and conditions simulating the canning production site. A1.2 The minimum test time is 16h.
A1.3 Fill in the record card during the test, which includes the actual working time of the machine, downtime (abnormal operation, broken bottles, damaged parts, machine adjustment, etc., the time of lubrication and cleaning of the sealing machine is not included) and the reason. A1.4 Determine the calculated value of the effectiveness, and calculate according to formula (A1): A
Where A
effectiveness;
Number of intermittent working;
ts:\u2014\u2014i times of intermittent working time;
tt:\u2014i times of intermittent (downtime) time.
Additional instructions:
X 100%
This standard was proposed and managed by the Hefei General Machinery Research Institute of the Ministry of Machinery Industry. This standard was drafted by Sichuan Nanpu Machinery Factory. The main drafters of this standard are Tang Yifeng and Liao Mouxi. \u00b7(Al)The pressure of the i-th bottle whose internal pressure is not higher than 74 kPa; the number of canned bottles whose internal pressure is higher than 74 kPa. r
5.5.3 Observe with naked eyes whether the bottle cap has skirt and scratches that damage the anti-corrosion layer. 5.5.4 Sealing tightness: open the canned bottle cap after sealing, take out the rubber ring, and its indentation should be continuous and uninterrupted. 5.5.5 Bottle breakage rate: the ratio of the number of broken bottles during the sealing test to the total number of canned bottles. (1)
5.5.6 Determination of whether the canned contents have new contamination: when the sealing machine is working, randomly select 4 adjacent bottles, of which 2 bottles have been sealed and 2 bottles have not been sealed, and test the harmful content of the canned contents together, and compare the test results. 5.5.7 Visual inspection shall be carried out in accordance with the requirements of 4.1.6, 4.1.7, 4.2.9~4.2.11, 4.4.1, 4.4.2. 5.5.8 The effectiveness test of the sealing machine shall be carried out in accordance with Appendix A (Supplement). 5.5.9 The life test shall establish test points among users, keep good test records, and the test results shall be provided by the user or the statutory quality supervision department shall issue the test results.
5.5.10 Noise measurement
Testing instrument: Type I sound level meter specified in GB3785. a.
No obstacles shall be placed around the sealing machine, and the distance from the wall shall not be less than 2000mm. Microphone measurement point position: The height from the ground and the distance between the sealing machines are 1500mm and 1000mm respectively, and 4 measurement points shall be selected along the periphery of the sealing machine. c.
|d. When measuring, the background noise (i.e. the ambient noise when the sealing machine is not running) should be measured first, and its position is the same as the sealing machine noise measurement position. If the difference between the background noise sound pressure level and the noise sound pressure level when the sealing machine is running is less than 3dB(A), the measurement result is invalid. If the difference is less than 10dB(A) and greater than or equal to 3dB(A), the noise of each measuring point of the sealing machine is obtained after correction according to Table 2. Table 2
Lp -- Lpo
In the table: Lpl-noise sound pressure level when the sealing machine is running Lpo-background noise sound pressure level;
\u25b3Lp-correction value to be subtracted from Lpi. The actual noise of each measuring point is calculated according to formula 2): Lp=LP1-\u25b3Lp
6\uff5e9
dB(A)
e. Under load operation, after measuring the noise at each point, take the highest value, which is the noise sound pressure level of the sealing machine, which should comply with the provisions of 4.2.6.
5.5.11 Measure the insulation resistance and grounding resistance according to the method specified in GB5226. 5.5.12 Check the provisions of the design and process documents according to the requirements of Article 4.1.4. 5.5.13 Sensory evaluation of the requirements of Article 4.4.3, among which: Coating hardness: scratch the coating with a fingernail, and if there is no mark, the coating hardness is considered to be sufficient. a.
Coating elasticity: scrape the coating with a sharp knife. If the scrapings do not break, do not stick together, and roll up elastically, the coating can be considered to be elastic.
Coating film adhesion: Make a cross-shaped crack on the coating film. If it is not easy to peel off along the edge of the crack, it is qualified. c.
5.5.14 Visually inspect the requirements specified in Article 4.3 when turning on the machine. 5.5.15 The power consumption of each bottle is measured by an electric meter, and then calculated based on the productivity. 6 Inspection rules
6.1 Each sealing machine must be inspected and qualified by the quality inspection department of the manufacturer in accordance with this standard and accompanied by a product certificate before it can leave the factory. 6.2 Factory inspection of sealing machines
6.2.1 Each sealing machine should be inspected for the requirements of Articles 4.1.3, 4.1.6, 4.1.7, 4.2.9~4.2.11, 4.3, 4.4.1, and 4.4.2 according to the prescribed methods before leaving the factory.
6.2.2 Each batch of sealing machines leaving the factory shall be inspected in accordance with the prescribed method for 4.1.2, 4.2.1, 4.2.6, 4.2.7 and the energy consumption of the motor for each bottle sealing, etc., by sampling 5% of the batch (at least 3 units). 6.3 Type inspection of sealing machines
JB/T 7549.3-94
6.3.1 In any of the following cases, type inspection shall be carried out, and its content and method shall be in accordance with the provisions of Chapter 5: Trial production and appraisal of new products or old products transferred to the factory for production; a.
After the formal production of the product, its structure, process and materials have major changes; b.
After the formal production of the product, regular inspection once a year: c.
When the national quality supervision agency proposes a type inspection requirement. d.
6.3.2 Two units shall be sampled for type inspection. If one unit fails to meet the standard, double sampling shall be conducted and the result shall be the final result. 7 Marking, packaging, transportation and storage
7.1 Marking
7.1.1 The sealing machine shall have trademarks and signs. The signs shall comply with the provisions of GB/T13306 and shall contain at least: a.
Product model and name;
Nominal productivity:
Motor power;
Factory number and date of manufacture;
Manufacturer's name.
7.1.2 The sealing machine shall have instructions for each control device, such as "start" and "stop". 7.1.3 The power switch shall be marked with the words "on" and "off", and the electrical box shall be marked with "caution against electric shock" according to GB2894. 7.1.4 There should be a rotation direction mark at a location close to the power source and where the rotation direction is easy to observe. 7.1.5 The mark on the packaging box should comply with the provisions of GB191 and GB6388. 7.2 Packaging
7.2.1 The sealing machine should be firmly fixed in the packaging box. 7.2.2 The packaging box should comply with the provisions of GB/T13384. 7.3 Transportation
7.3.1 The sealing machine should be covered during transportation. 7.3.2 The packaging box of the sealing machine is not allowed to collide during transportation. 7.4 Storage
7.4.1 The sealing machine should be stored in a covered dry place. 7.4.2 The sealing machine should be rust-proofed if it is stored for more than 6 months. 6
A1 Test and evaluation method for effectiveness
JB/T 7549. 3--94
Appendix A
Effectiveness test
(Supplement)
A1.1 The effectiveness test should be carried out at the canning production site or under the working environment and conditions simulating the canning production site. A1.2 The minimum test time is 16h.
A1.3 Fill in the record card during the test, which includes the actual working time of the machine, the downtime (abnormal operation, broken bottles, damaged parts, machine adjustment, etc., the time of lubrication and cleaning of the sealing machine is not included) and the reasons. A1.4 Determine the calculated value of the effectiveness, and calculate according to formula (A1): A
Wherein A
effectiveness;
Number of intermittent working;
ts:\u2014\u2014i-th intermittent working time;
tt:\u2014i-th intermittent (downtime) time.
Additional instructions:
X 100%
This standard was proposed and managed by the Hefei General Machinery Research Institute of the Ministry of Machinery Industry. This standard was drafted by Sichuan Nanpu Machinery Factory. The main drafters of this standard were Tang Yifeng and Liao Mouxi. \u00b7(Al)The pressure of the i-th bottle whose internal pressure is not higher than 74 kPa; the number of canned bottles whose internal pressure is higher than 74 kPa. r
5.5.3 Observe with naked eyes whether the bottle cap has skirt and scratches that damage the anti-corrosion layer. 5.5.4 Sealing tightness: open the canned bottle cap after sealing, take out the rubber ring, and its indentation should be continuous and uninterrupted. 5.5.5 Bottle breakage rate: the ratio of the number of broken bottles during the sealing test to the total number of canned bottles. (1)
5.5.6 Determination of whether the canned contents have new contamination: when the sealing machine is working, randomly select 4 adjacent bottles, of which 2 bottles have been sealed and 2 bottles have not been sealed, and test the harmful content of the canned contents together, and compare the test results. 5.5.7 Visual inspection shall be carried out in accordance with the requirements of 4.1.6, 4.1.7, 4.2.9~4.2.11, 4.4.1, 4.4.2. 5.5.8 The effectiveness test of the sealing machine shall be carried out in accordance with Appendix A (Supplement). 5.5.9 The life test shall establish test points among users, keep good test records, and the test results shall be provided by the user or the statutory quality supervision department shall issue the test results.
5.5.10 Noise measurement
Testing instrument: Type I sound level meter specified in GB3785. a.
No obstacles shall be placed around the sealing machine, and the distance from the wall shall not be less than 2000mm. Microphone measurement point position: The height from the ground and the distance between the sealing machines are 1500mm and 1000mm respectively, and 4 measurement points shall be selected along the periphery of the sealing machine. c.
|d. When measuring, the background noise (i.e. the ambient noise when the sealing machine is not running) should be measured first, and its position is the same as the sealing machine noise measurement position. If the difference between the background noise sound pressure level and the noise sound pressure level when the sealing machine is running is less than 3dB(A), the measurement result is invalid. If the difference is less than 10dB(A) and greater than or equal to 3dB(A), the noise of each measuring point of the sealing machine is obtained after correction according to Table 2. Table 2
Lp -- Lpo
In the table: Lpl-noise sound pressure level when the sealing machine is running Lpo-background noise sound pressure level;www.bzxz.net
\u25b3Lp-correction value to be subtracted from Lpi. The actual noise of each measuring point is calculated according to formula 2): Lp=LP1-\u25b3Lp
6\uff5e9
dB(A)
e. Under load operation, after measuring the noise at each point, take the highest value, which is the noise sound pressure level of the sealing machine, which should comply with the provisions of 4.2.6.
5.5.11 Measure the insulation resistance and grounding resistance according to the method specified in GB5226. 5.5.12 Check the provisions of the design and process documents according to the requirements of Article 4.1.4. 5.5.13 Sensory evaluation of the requirements of Article 4.4.3, among which: Coating hardness: scratch the coating with a fingernail, and if there is no mark, the coating hardness is considered to be sufficient. a.
Coating elasticity: scrape the coating with a sharp knife. If the scrapings do not break, do not stick together, and roll up elastically, the coating can be considered to be elastic.
Coating film adhesion: Make a cross-shaped crack on the coating film. If it is not easy to peel off along the edge of the crack, it is qualified. c.
5.5.14 Visually inspect the requirements specified in Article 4.3 when turning on the machine. 5.5.15 The power consumption of each bottle is measured by an electric meter, and then calculated based on the productivity. 6 Inspection rules
6.1 Each sealing machine must be inspected and qualified by the quality inspection department of the manufacturer in accordance with this standard and accompanied by a product certificate before it can leave the factory. 6.2 Factory inspection of sealing machines
6.2.1 Each sealing machine should be inspected for the requirements of Articles 4.1.3, 4.1.6, 4.1.7, 4.2.9~4.2.11, 4.3, 4.4.1, and 4.4.2 according to the prescribed methods before leaving the factory.
6.2.2 Each batch of sealing machines leaving the factory shall be inspected in accordance with the prescribed method for 4.1.2, 4.2.1, 4.2.6, 4.2.7 and the energy consumption of the motor for each bottle sealing, etc., by sampling 5% of the batch (at least 3 units). 6.3 Type inspection of sealing machines
JB/T 7549.3-94
6.3.1 In any of the following cases, type inspection shall be carried out, and its content and method shall be in accordance with the provisions of Chapter 5: Trial production and appraisal of new products or old products transferred to the factory for production; a.
After the formal production of the product, its structure, process and materials have major changes; b.
After the formal production of the product, regular inspection once a year: c.
When the national quality supervision agency proposes a type inspection requirement. d.
6.3.2 Two units shall be sampled for type inspection. If one unit fails to meet the standard, double sampling shall be conducted and the result shall be the final result. 7 Marking, packaging, transportation and storage
7.1 Marking
7.1.1 The sealing machine shall have trademarks and signs. The signs shall comply with the provisions of GB/T13306 and shall contain at least: a.
Product model and name;
Nominal productivity:
Motor power;
Factory number and date of manufacture;
Manufacturer's name.
7.1.2 The sealing machine shall have instructions for each control device, such as "start" and "stop". 7.1.3 The power switch shall be marked with the words "on" and "off", and the electrical box shall be marked with "caution against electric shock" according to GB2894. 7.1.4 There should be a rotation direction mark at a location close to the power source and where the rotation direction is easy to observe. 7.1.5 The mark on the packaging box should comply with the provisions of GB191 and GB6388. 7.2 Packaging
7.2.1 The sealing machine should be firmly fixed in the packaging box. 7.2.2 The packaging box should comply with the provisions of GB/T13384. 7.3 Transportation
7.3.1 The sealing machine should be covered during transportation. 7.3.2 The packaging box of the sealing machine is not allowed to collide during transportation. 7.4 Storage
7.4.1 The sealing machine should be stored in a covered dry place. 7.4.2 The sealing machine should be rust-proofed if it is stored for more than 6 months. 6
A1 Test and evaluation method for effectiveness
JB/T 7549. 3--94
Appendix A
Effectiveness test
(Supplement)
A1.1 The effectiveness test should be carried out at the canning production site or under the working environment and conditions simulating the canning production site. A1.2 The minimum test time is 16h.
A1.3 Fill in the record card during the test, which includes the actual working time of the machine, the downtime (abnormal operation, broken bottles, damaged parts, machine adjustment, etc., the time of lubrication and cleaning of the sealing machine is not included) and the reasons. A1.4 Determine the calculated value of the effectiveness, and calculate according to formula (A1): A
Wherein A
effectiveness;
Number of intermittent working;
ts:\u2014\u2014i-th intermittent working time;
tt:\u2014i-th intermittent (downtime) time.
Additional instructions:
X 100%
This standard was proposed and managed by the Hefei General Machinery Research Institute of the Ministry of Machinery Industry. This standard was drafted by Sichuan Nanpu Machinery Factory. The main drafters of this standard were Tang Yifeng and Liao Mouxi. \u00b7(Al)
Select 4 measuring points.
d. The background noise (i.e. the ambient noise when the sealing machine is not running) should be measured first during measurement, and its position is the same as the sealing machine noise measurement position. If the difference between the background noise sound pressure level and the noise sound pressure level when the sealing machine is running is less than 3dB(A), the measurement result is invalid. If the difference is less than 10dB(A) and greater than or equal to 3dB(A), the noise of each measuring point of the sealing machine is obtained after correction according to Table 2. Table 2
Lp -- Lpo
In the table: Lpl-noise sound pressure level when the sealing machine is running Lpo-background noise sound pressure level;
\u25b3Lp-correction value to be subtracted from Lpi. The actual noise of each measuring point is calculated according to formula 2): Lp=LP1-\u25b3Lp
6\uff5e9
dB(A)
e. Under load operation, after measuring the noise at each point, take the highest value, which is the noise sound pressure level of the sealing machine, which should comply with the provisions of 4.2.6.
5.5.11 Measure the insulation resistance and grounding resistance according to the method specified in GB5226. 5.5.12 Check the provisions of the design and process documents according to the requirements of Article 4.1.4. 5.5.13 Sensory evaluation of the requirements of Article 4.4.3, among which: Coating hardness: scratch the coating with a fingernail, and if there is no mark, the coating hardness is considered to be sufficient. a.
Coating elasticity: scrape the coating with a sharp knife. If the scrapings do not break, do not stick together, and roll up elastically, the coating can be considered to be elastic.
Coating film adhesion: Make a cross-shaped crack on the coating film. If it is not easy to peel off along the edge of the crack, it is qualified. c.
5.5.14 Visually inspect the requirements specified in Article 4.3 when turning on the machine. 5.5.15 The power consumption of each bottle is measured by an electric meter, and then calculated based on the productivity. 6 Inspection rules
6.1 Each sealing machine must be inspected and qualified by the quality inspection department of the manufacturer in accordance with this standard and accompanied by a product certificate before it can leave the factory. 6.2 Factory inspection of sealing machines
6.2.1 Each sealing machine should be inspected for the requirements of Articles 4.1.3, 4.1.6, 4.1.7, 4.2.9~4.2.11, 4.3, 4.4.1, and 4.4.2 according to the prescribed methods before leaving the factory.
6.2.2 Each batch of sealing machines leaving the factory shall be inspected in accordance with the prescribed method for 4.1.2, 4.2.1, 4.2.6, 4.2.7 and the energy consumption of the motor for each bottle sealing, etc., by sampling 5% of the batch (at least 3 units). 6.3 Type inspection of sealing machines
JB/T 7549.3-94
6.3.1 In any of the following cases, type inspection shall be carried out, and its content and method shall be in accordance with the provisions of Chapter 5: Trial production and appraisal of new products or old products transferred to the factory for production; a.
After the formal production of the product, its structure, process and materials have major changes; b.
After the formal production of the product, regular inspection once a year: c.
When the national quality supervision agency proposes a type inspection requirement. d.
6.3.2 Two units shall be sampled for type inspection. If one unit fails to meet the standard, double sampling shall be conducted and the result shall be the final result. 7 Marking, packaging, transportation and storage
7.1 Marking
7.1.1 The sealing machine shall have trademarks and signs. The signs shall comply with the provisions of GB/T13306 and shall contain at least: a.
Product model and name;
Nominal productivity:
Motor power;
Factory number and date of manufacture;
Manufacturer's name.
7.1.2 The sealing machine shall have instructions for each control device, such as "start" and "stop". 7.1.3 The power switch shall be marked with the words "on" and "off", and the electrical box shall be marked with "caution against electric shock" according to GB2894. 7.1.4 There should be a rotation direction mark at a location close to the power source and where the rotation direction is easy to observe. 7.1.5 The mark on the packaging box should comply with the provisions of GB191 and GB6388. 7.2 Packaging
7.2.1 The sealing machine should be firmly fixed in the packaging box. 7.2.2 The packaging box should comply with the provisions of GB/T13384. 7.3 Transportation
7.3.1 The sealing machine should be covered during transportation. 7.3.2 The packaging box of the sealing machine is not allowed to collide during transportation. 7.4 Storage
7.4.1 The sealing machine should be stored in a covered dry place. 7.4.2 The sealing machine should be rust-proofed if it is stored for more than 6 months. 6
A1 Test and evaluation method for effectiveness
JB/T 7549. 3--94
Appendix A
Effectiveness test
(Supplement)
A1.1 The effectiveness test should be carried out at the canning production site or under the working environment and conditions simulating the canning production site. A1.2 The minimum test time is 16h.
A1.3 Fill in the record card during the test, which includes the actual working time of the machine, the downtime (abnormal operation, broken bottles, damaged parts, machine adjustment, etc., the time of lubrication and cleaning of the sealing machine is not included) and the reasons. A1.4 Determine the calculated value of the effectiveness, and calculate according to formula (A1): A
Wherein A
effectiveness;
Number of intermittent working;
ts:\u2014\u2014i-th intermittent working time;
tt:\u2014i-th intermittent (downtime) time.
Additional instructions:
X 100%
This standard was proposed and managed by the Hefei General Machinery Research Institute of the Ministry of Machinery Industry. This standard was drafted by Sichuan Nanpu Machinery Factory. The main drafters of this standard were Tang Yifeng and Liao Mouxi. \u00b7(Al)
Select 4 measuring points.
d. The background noise (i.e. the ambient noise when the sealing machine is not running) should be measured first during measurement, and its position is the same as the sealing machine noise measurement position. If the difference between the background noise sound pressure level and the noise sound pressure level when the sealing machine is running is less than 3dB(A), the measurement result is invalid. If the difference is less than 10dB(A) and greater than or equal to 3dB(A), the noise of each measuring point of the sealing machine is obtained after correction according to Table 2. Table 2
Lp -- Lpo
In the table: Lpl-noise sound pressure level when the sealing machine is running Lpo-background noise sound pressure level;
\u25b3Lp-correction value to be subtracted from Lpi. The actual noise of each measuring point is calculated according to formula 2): Lp=LP1-\u25b3Lp
6\uff5e9
dB(A)
e. Under load operation, after measuring the noise at each point, take the highest value, which is the noise sound pressure level of the sealing machine, which should comply with the provisions of 4.2.6.
5.5.11 Measure the insulation resistance and grounding resistance according to the method specified in GB5226. 5.5.12 Check the provisions of the design and process documents according to the requirements of Article 4.1.4. 5.5.13 Sensory evaluation of the requirements of Article 4.4.3, among which: Coating hardness: scratch the coating with a fingernail, and if there is no mark, the coating hardness is considered to be sufficient. a.
Coating elasticity: scrape the coating with a sharp knife. If the scrapings do not break, do not stick together, and roll up elastically, the coating can be considered to be elastic.
Coating film adhesion: Make a cross-shaped crack on the coating film. If it is not easy to peel off along the edge of the crack, it is qualified. c.
5.5.14 Visually inspect the requirements specified in Article 4.3 when turning on the machine. 5.5.15 The power consumption of each bottle is measured by an electric meter, and then calculated based on the productivity. 6 Inspection rules
6.1 Each sealing machine must be inspected and qualified by the quality inspection department of the manufacturer in accordance with this standard and accompanied by a product certificate before it can leave the factory. 6.2 Factory inspection of sealing machines
6.2.1 Each sealing machine should be inspected for the requirements of Articles 4.1.3, 4.1.6, 4.1.7, 4.2.9~4.2.11, 4.3, 4.4.1, and 4.4.2 according to the prescribed methods before leaving the factory.
6.2.2 Each batch of sealing machines leaving the factory shall be inspected in accordance with the prescribed method for 4.1.2, 4.2.1, 4.2.6, 4.2.7 and the energy consumption of the motor for each bottle sealing, etc., by sampling 5% of the batch (at least 3 units). 6.3 Type inspection of sealing machines
JB/T 7549.3-94
6.3.1 In any of the following cases, type inspection shall be carried out, and its content and method shall be in accordance with the provisions of Chapter 5: Trial production and appraisal of new products or old products transferred to the factory for production; a.
After the formal production of the product, its structure, process and materials have major changes; b.
After the formal production of the product, regular inspection once a year: c.
When the national quality supervision agency proposes a type inspection requirement. d.
6.3.2 Two units shall be sampled for type inspection. If one unit fails to meet the standard, double sampling shall be conducted and the result shall be the final result. 7 Marking, packaging, transportation and storage
7.1 Marking
7.1.1 The sealing machine shall have trademarks and signs. The signs shall comply with the provisions of GB/T13306 and shall contain at least: a.
Product model and name;
Nominal productivity:
Motor power;
Factory number and date of manufacture;
Manufacturer's name.
7.1.2 The sealing machine shall have instructions for each control device, such as "start" and "stop". 7.1.3 The power switch shall be marked with the words "on" and "off", and the electrical box shall be marked with "caution against electric shock" according to GB2894. 7.1.4 There should be a rotation direction mark at a location close to the power source and where the rotation direction is easy to observe. 7.1.5 The mark on the packaging box should comply with the provisions of GB191 and GB6388. 7.2 Packaging
7.2.1 The sealing machine should be firmly fixed in the packaging box. 7.2.2 The packaging box should comply with the provisions of GB/T13384. 7.3 Transportation
7.3.1 The sealing machine should be covered during transportation. 7.3.2 The packaging box of the sealing machine is not allowed to collide during transportation. 7.4 Storage
7.4.1 The sealing machine should be stored in a covered dry place. 7.4.2 The sealing machine should be rust-proofed if it is stored for more than 6 months. 6
A1 Test and evaluation method for effectiveness
JB/T 7549. 3--94
Appendix A
Effectiveness test
(Supplement)
A1.1 The effectiveness test should be carried out at the canning production site or under the working environment and conditions simulating the canning production site. A1.2 The minimum test time is 16h.
A1.3 Fill in the record card during the test, which includes the actual working time of the machine, the downtime (abnormal operation, broken bottles, damaged parts, machine adjustment, etc., the time of lubrication and cleaning of the sealing machine is not included) and the reasons. A1.4 Determine the calculated value of the effectiveness, and calculate according to formula (A1): A
Wherein A
effectiveness;
Number of intermittent working;
ts:\u2014\u2014i-th intermittent working time;
tt:\u2014i-th intermittent (downtime) time.
Additional instructions:
X 100%
This standard was proposed and managed by the Hefei General Machinery Research Institute of the Ministry of Machinery Industry. This standard was drafted by Sichuan Nanpu Machinery Factory. The main drafters of this standard were Tang Yifeng and Liao Mouxi. \u00b7(Al)
Product model and name;
Nominal productivity:
Motor power;
Factory number and date of manufacture;
Manufacturer name.
7.1.2 The sealing machine should have ins
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