This standard specifies the model compilation, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of horizontal pillow-shaped seam wrapping machines. This standard is applicable to horizontal pillow-shaped seam wrapping machines that use heat-sealable composite films and single films as wrapping materials to wrap bulk solid materials in pillow-shaped packaging. JB/T 7544.2-1994 Technical conditions for horizontal pillow-shaped seam wrapping machines JB/T7544.2-1994 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T7544.2-94
Horizontal pillow-type seam wrapping machine
Technical conditions
Published on December 9, 1994
Ministry of Machinery Industry of the People's Republic of China
Implementation on October 1, 1995
Mechanical Industry Standard of the People's Republic of China
Horizontal pillow-type seam wrapping machine
Technical Conditions
Subject content and scope of application
JB/T7544.2-94
This standard specifies the model compilation, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of horizontal pillow-type seam wrapping machines (hereinafter referred to as wrapping machines).
This standard is applicable to horizontal pillow-type seam wrapping machines that use heat-sealable composite films and single films as wrapping materials to wrap block solid materials in pillow shape.
2 Reference standards
GB3785
GB5226
GB7311
GB/T13306
GB/T13384
ZBJ50011
ZBY28004
Model compilation
Pictorial symbols for packaging, storage and transportation
Electrical and acoustic properties and test methods of sound level metersGeneral technical conditions for machine tools and electrical equipment
Model compilation method for packaging machinery
General technical conditions for packaging of electromechanical products
Technical conditions for painting of machine tools
Method for determination of heat seal strength of plastic film packaging bagsThe model compilation of wrapping machines shall comply with the provisions of GB7311. BJ
Improved design sequence number.A, B..
Productivity
Horizontal, pillow type
Seam wrapping machine
Technical requirements
The wrapping machine shall comply with the provisions of this standard and be manufactured according to the drawings and technical documents approved by the prescribed procedures. The wrapping speed of the wrapping machine shall be steplessly adjustable, and the wrapping size range shall meet the design requirements. The availability of the wrapping machine shall not be less than 95%.
Under normal conditions of use, the service time of the wrapping machine before the first overhaul shall not be less than 7000h. The quality of the finished wrapped bags and their seals shall meet the following requirements: a.
For packaging bags with color code positioning, the error between the cutting position and the predetermined position shall not exceed ±3mm; the seal shall be flat, firm, with clear embossing, and shall not have burning or pressure penetration; Approved by the Ministry of Machinery Industry on December 9, 1994
Implementation on October 1, 1995
JB/T 7544.294
The longitudinal and transverse sealing strengths shall not be less than 5.9N/15mm; e.
d, there shall be no air leakage at the sealing part of the finished bag, except for those without airtightness requirements. The quality pass rate of the finished bag and its seal shall not be less than 96%.
4.6 The wrapping machine shall run smoothly, without blocking of moving parts, flexible, coordinated and accurate movements, and the control and operating mechanism shall be able to be adjusted according to the design requirements.
4.7 For wrapping machines used to package food or medicine, the parts in contact with the wrapping materials and packaging materials should be made of stainless, non-toxic and chemically stable materials, and should comply with relevant food hygiene regulations. 4.8 The electrical control of the wrapping machine should be safe and reliable, and the insulation resistance between the live parts and the metal shell of the machine body should not be less than 1MQ. The machine should also have good grounding protection measures, and the resistance between the main grounding terminal and any metal parts that may be live due to insulation damage should not be greater than 0.1. 4.9 The noise of the wrapping machine when running idle should not be greater than 80dB(A). 0 The parts of the wrapping machine must be inspected and qualified by the quality inspection department before they can be assembled. Purchased parts and outsourced parts must have a certificate of conformity before they can be used. 4.10
The appearance quality of the wrapping machine shall meet the following requirements: the exposed surface shall be flat and smooth, without obvious uneven defects, and shall be treated with anti-corrosion. a.
The surface of the electroplated parts shall have a uniform color and shall not have blistering or delamination; the quality of the surface paint shall meet the requirements of ZBJ50011, and the glossiness of the paint layer shall not be less than 75%; the matching gaps of the doors, covers, and hoods shall be uniform. d.
4.12 Under the condition that the user complies with the installation and use rules of the product, within 18 months from the date of delivery and within 12 months from the date of installation by the user, if the product cannot work normally due to poor manufacturing quality, the manufacturer shall repair or replace it for the user free of charge (excluding wearing parts). 5 Test method
5.1 Each wrapping machine shall be tested for idle operation, and the continuous operation time shall not be less than 1h. The operation should be carried out from low speed to high speed in sequence. At the highest speed, the operation time shall not be less than 10 minutes, and shall comply with the requirements of Articles 4.6 and 4.9. 5.2 Under the normal working conditions of the wrapping machine, test the maximum and minimum wrapping speeds of the wrapping machine respectively. In the continuous test of the wrapped finished product (it is allowed not to wrap the real object), sample once every 1 minute, each sampling for 1 minute, and conduct 3 times, and calculate the average value respectively, which shall meet the corresponding requirements of Article 4.2.
5.3 Adjust the former and other corresponding adjustment mechanisms respectively, and the wrapping size range shall be able to meet the corresponding requirements of Article 4.2. 5.4 Wrapped finished bag and its sealing quality pass rate test 5.4.1 Under the normal working speed of the wrapping machine, from the continuously wrapped finished product (it is allowed not to wrap the real object), sample 120 bags at equal intervals, and the sampling shall be carried out 4 times, with 30 bags sampled continuously each time. Finally, the sampled samples shall be divided into 4 groups at will. 5:4.2 Take any group of samples, measure the incision position, which shall comply with the provisions of Article 4.5a, and count the number of qualified products X. 5.4.3 Take any group of samples, visually inspect the sealing quality of the bag, which shall comply with the provisions of Article 4.5b, and count the number of qualified products X. 5.4.4 Take any group of samples, cut one sample from any sealing part of each bag, and the sampling direction and size shall be carried out in accordance with Articles 3.1 and 3.2 of ZBY28004, and the strength test shall be carried out in accordance with the provisions of Chapter 4 of ZBY28004. The result shall comply with the provisions of Article 4.5c of this standard, and count the number of qualified products X.
5.4.5 Take any group of samples, place each bag in water, and squeeze it by hand. The bag is qualified if the air in the bag is not discharged from the sealing part (except other places), and count the number of qualified products X. 5.4.6 The qualified rate X of the finished wrapped bag and its sealing quality is calculated as follows: XX+X+X+X×100%
5.5 The availability and the first overhaul period of the wrapping machine shall be determined by the test report approved by the statutory testing agency or by the statutory testing agency 2
JB/T7544.2-94
to make a comprehensive assessment based on the original record data provided by the user. The results shall comply with the provisions of Articles 4.3 and 4.4. 5.6 The insulation resistance and grounding resistance of the wrapping machine shall be tested with a megohmmeter with an accuracy not less than Class 1 and a grounding resistance meter with an accuracy not less than Class 1.5 in accordance with Chapter 13 of GB5226, and the results shall comply with the provisions of Article 4.8. 5.7 Noise measurement
5.7.1 The test instrument shall be a Type 1 sound level meter specified in GB3785. 5.7.2 There shall be no obstacles around the wrapping machine, and the distance from the wall shall not be less than 2000mm. 5.7.3 Microphone measuring point location: 1500mm above the ground, 1000mm from the wrapping machine, and 6 measuring points are selected along the periphery of the packaging machine.
5.7.4 The background noise (i.e. the ambient noise when the wrapping machine is not running) should be measured first during measurement, and its location is the same as the noise measurement location of the wrapping machine. The background noise sound pressure level should be at least 10dB(A) lower than the noise sound pressure level when the wrapping machine is running. If the difference is less than 3dB(A), the measurement result is invalid. When the difference is less than 10dB(A) and greater than 3dB(A), the noise of each measuring point of the wrapping machine is obtained after correction according to Table 1. Table 1
Lpi Lr:
In the table: Lpl——noise sound pressure level when the wrapping machine is running; Lp2\—background noise sound pressure level;
L—correction value to be subtracted from L.
5.7.5 At rated working speed, after measuring the noise at 6 measuring points of the wrapping machine, take the maximum value as the noise value of the wrapping machine, which shall comply with the provisions of Article 4.9 of this standard. bzxZ.net
5.8 The glossiness of the paint layer of the wrapping machine is measured by a gloss meter, and its value shall comply with the provisions of Article 4.11c. Inspection rules
Factory inspection
Each wrapping machine must be inspected and qualified by the inspection department of the manufacturer and accompanied by a product inspection certificate before it can leave the factory. The factory inspection items are: Articles 4.2, 4.6, 4.7, 4.10, and 4.11. 6.1.2
Type inspection
Type inspection shall be conducted in any of the following cases: trial production and identification of new products or old products transferred to the factory for production; after formal production, if there are major changes in structure, materials, and processes that may affect product performance; when the normal production time is one year;
when production is resumed after more than one year of suspension;
when the factory inspection results are significantly different from the last type inspection; when the national quality supervision agency proposes a type inspection requirement. The type inspection items are all technical requirements specified in this standard. Sampling and judgment
6. 2. 3. 2
The number of samples to be sampled shall be 10% of the inspection batch, but not less than 1 unit. If there is one unqualified unit in the inspection batch, it shall be re-sampled and the number of samples shall be doubled. If there are still unqualified units, the batch of wrapping machines shall be inspected one by one. After the unqualified products in the inspection are repaired, they can be submitted for inspection again with the consent of the inspection party. Marking, packaging, transportation, storage
Each wrapping machine should be fixed with a label in a conspicuous position, and the label size and technical requirements should comply with the provisions of GB/T13306. The label3
should indicate the following:
Manufacturer name;
Product name and model:
Main technical parameters of the product;
Manufacturing date and factory number.
JB/T7544.2-94
The operating requirements of the wrapping machine should be marked in appropriate positions. The wrapping machine should be firmly fixed in the packaging box and should comply with the provisions of GB/T13384. The markings on the packaging box surface should comply with the provisions of GB191.
The accompanying documents should comply with the relevant provisions of GB/T13384 and should include: a.
Packing list;
Product certificate,
Instruction manual.
The wrapping machine shall not vibrate violently during transportation, and collision is strictly prohibited during loading and unloading. 7.5
The wrapping machine should be stored in a dry and ventilated place. Under normal storage conditions, it should be ensured that the product will not rust within half a year, and anti-corrosion treatment should be carried out for more than half a year.
Additional instructions:
This standard was proposed and managed by the Hefei General Machinery Research Institute of the Ministry of Machinery Industry. This standard was drafted by the Hefei General Machinery Research Institute and Guilin Packaging Machine Factory. The main drafters of this standard are Wu Ruiping, Li Shanwei and Peng Xinghua. People's Republic of China Machinery Industry Standard Horizontal Pillow Seam Wrapping Machine Technical Articles JB/T 7544. 294 Published by the Machinery Standardization Research Institute of the Ministry of Machinery Industry Printed by the Machinery Standardization Research Institute of the Ministry of Machinery Industry (PO Box 8144, Beijing, 100081) Copyright reserved. No reproduction allowed Format 880×1230 1/16 Printing Sheet 1/2 Number 8,000 First Edition in June 1995 First Printing in June 1995 Number of Prints 00,000 1-500 Price RMB 3.00 Number 94-178
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