This standard specifies the requirements, test methods, inspection rules and marking, packaging, transportation and storage of push plates for industrial sewing machines. This standard applies to push plates used in industrial sewing machines (hereinafter referred to as "push plates"). QB/T 1578-2005 Push plates for industrial sewing machines QB/T1578-2005 Standard download decompression password: www.bzxz.net

Classification number: Y17
Registration number: 16401-2005
Light Industry Standard of the People's Republic of China
QB/T 1578—2005
Complete QE/T15781992
Industrial sewing machine
Slide-plate for lackstiteh scwing machinc2005-07-26 Issued
National Education and Reform Commission of the People's Republic of China 2006-01-01 Implementation
QB/T15782005
This standard is a supplement to QB/T1578~1992 Industrial Chain Sewing Machine GF Chain Sewing Machine. Compared with QB/T1578-12, the main changes are: the original standard name is changed to "Industrial Chain Sewing Machine Flat-sewing Chain Collar Machine Push Plate"; the second chapter "Application Standard" of the original standard is modified; the content of "Not required" in the original standard is added and revised; the content of "Test Method" is added and revised; the content of "Mark" is added and the product name and number mark content: the inspection rules are numbered according to the provisions of GB/T28.1-2003 and GB/T2829-2002. This standard is written with reference to the technical requirements and test methods of advanced domestic push plate production: 1. This standard is proposed by China Light Industry Federation. This standard belongs to the national chain Honghong Standardization Center. The units that make up the standard are: Zhejiang Tingjingou Precision Machinery Co., Ltd., Shanghai Taoshi Sewing Research Institute, Mufeng Standards Institute, Zhang Maogao, Yao Songming, Shen Shida, Wang Wei. This standard has been implemented on the date of implementation, replacing the original light industry standard QB/157819926T issued by the Ministry of Light Industry for industrial sewing machines CC
type flat sewing machine push plate light
1 Scope
Industrial sewing machine flat sewing machine push plate
QB/T157B2005
This standard specifies the requirements for industrial sewing machines, test methods, inspection rules and marking, packaging, transportation, purchase and storage.
This standard uses the pusher plate (abbreviated as "push plate") used in hand-made industrial sewing machines and flat warp chain machines. 2 Normative references
Many of the following documents have become non-standard items through reference in this standard. For all referenced documents with a specified date, all subsequent amendments (excluding errata) or revised versions are not applicable to this standard. However, the parties who have reached an agreement on this standard are encouraged to study whether the latest versions of these documents can be used: For all referenced documents without a specified date, the latest versions are applicable to this standard. GBT2828.1-2003 Counting sample inspection procedure Part 1: Sampling plan for reverse batch inspection based on acceptance quality limit (AQL) inspection
GB/T2829-2002 Counting sample procedure for periodic inspection QB/T157 2-1992
QI/T2254-1996
QB/T38t4-1999
QR/T38211999
3Product structure
Technical conditions for electroplating through-pieces of sewing machine parts
Special threads for sewing machines
Quality test method for metal forging layer and chemical treatment layer of light products Test method for bonding elasticity of metal chain layer of light industrial products Product structure See diagram 1:
For the middle
2-SM3/52\>56
QB/T578-2005
4Requirements
4.1 Appearance quality
4.T.1 Surface roughness of electroplating layer
Inner silver! ! + Step clothing has roughness R, the degree is not more than 0.4, 4.1.2 The surface of the coating should meet the requirements of 6.1.1 in QB/11572-1992: 1.1.3 The coating should be strong and the drilled layer should be firm, and there should be no separation between the layer and the parts or layers. 4.2 Main tolerance requirements 4.2.1 Degree (): should meet the requirements of the drawings: 4.2.2 Length (22): will be determined by the level of bamboo requirements 4.2.3 The degree of the surface of the training face with the standard A surface: not more than 0.15mm. 4.2.4 The flatness of the main surface of the material: not more than 0.:5m. 42.5 The center distance () of the two screws should meet the requirements of the drawings. 4.2.6 The distance between the center line of the two holes and the standard A surface ( L): It should meet the requirements specified in the drawing. 4.2.7 Viscosity of the surface: It should meet the requirements of the grade precision of QBT2254-1996. 5 Test methods
5.E Appearance quality
5.1.1 Surface roughness of electroplated layer
The roughness of the surface before baking shall meet the requirements of QB/T3814-1909. 5.1.2 Surface quality of electroplated layer
The surface quality of the electroplated layer shall meet the requirements of (QB/T1572-1992). 5.1.3 Bonding strength of electroplated layer
The electroplated layer shall meet the requirements of QB/T382-1999. 5.2 Main dimension shape and position tolerance requirements
5.2. The vernier scale of the dimension (H) shall be not less than 0.02mut. 5.2.2 Dimensions () should be measured with a drop-mark caliper with an indication value not less than 0.121mm. 5.2.3 The straightness of the two sides should be measured with a negative ruler with an indication value not less than 2.5.2.4 The main inspection method for the surface of the plate should be measured with a 0.15mm piece of the standard plate. The blade of the angle ruler should be not less than 2000mm! 1. The required angle of the plate is required. The measurement address of the month 015 is
5.2.5. The monthly indication value of the center distance of the speed river is not less than 0.02mm. The measurement value of the spoon drop mark is not less than 0.02mm. 5.26. The distance between the center of the two holes is measured by the end of the ruler. The indication value is not less than 0.02mm. 5.2.7. The accuracy of the internal profit is measured by a special mosquito gauge. 6. Inspection and measurement
6. 11 Factory conditions
Product quality inspection according to the situation: and there are qualified inspection parties to enter the market! 6.2 Inspection classification
Product inspection classification! Control type inspection. 2
W customer standard industry data free download 6.2.1 Factory inspection
When the product is delivered, the consignee has the right to select the specified inspection items and conduct the acceptance 6.2.2 Type inspection
One of the following situations H, conduct type adjustment,
New product account or product quality inspection: .Product structure, material, process change, may affect product performance: normal production full cycle (appropriate period by the production The decision is): long-term production 5, when the hydrogen is restored:
: the factory inspection shrinks and the above type inspection is large and different from the state: the effective quality supervision agency proposes the requirement for type inspection. 8.2.3 will not be classified and the subject classification
not a qualified classification and qualified inspection.
control these items
three words to go to the fairy phase dedication degree
[selection point plate
home (m
standard surface vertical
push 1 zero degree
center surface of the hole ()
two deep hole center line to high standard surface code ()
two special degree
6. 3 out of the inspection specification double
6. 3. 1 The sample should be randomly selected from the inspection batch. 6.3.2 Sample selection plan and strictness The test is for the first category of qualified classification QB/T1E7820C6 The first category of the test is shown in Table 2. The strictness of the standard is determined according to the provisions of Section 9 of OB/T2828.1-2003. 6.3.3 Determination of acceptability According to the results of the sample inspection, if the number of unqualified samples of Class B and Class C is not greater than the acceptance number (Ac), then The inspection is controllable: the number of unqualified products of Class B and Class C found in the old samples is: the corresponding deduction number (R), then the inspection is unacceptable:
6.3.4 Disposal of unacceptable batches
The disposal of unacceptable batches shall be carried out in accordance with 7.2 of GH/T2828.1-2003. 3
QE/T1578-2005
Disposal plan
No qualification category
Separate monitoring items
Acceptance quality list (AQL)
Sample code
96-:50
281-500wwW.bzxz.Net
501--1200
1261·--3200
3201~- 100(K)
10001--3500
Select the wood for ear parts
Sample size
Note 2: Class B, Class Ac, R are calculated according to different standards: Note: The numbers in the table are for convenience. 5 Method BT2828.16.4 Type inspection rules
6.4.1 Sample extraction
In 2003, 10.3 Double-determined 47
The samples should be taken from a batch or a non-next batch produced in this cycle and passed the inspection, and it must be ensured that the samples obtained can represent the manufacturing technology level of this period:
6.4. 2 Sampling plan
The first sampling plan for type inspection is shown in Table 3. Table 3
Discrimination of water
Catch case
Details of this median inspection item
Unqualified water quality RQI:
Sample quantity
Symptoms! : Sample blood level is equal.
2: Class B, Class T objects Ae, Re are calculated by the number of qualified Ac
Oil sample
6.4.3 Judgment of qualified and unqualified type inspection QB/T1578—2005
According to the statistics of the samples, if the number of unqualified B and C items found in the samples is not artificially studied (Ac), then the type inspection is judged as unqualified: convex in If the number of unqualified products of Class B and Class C in the single book is not less than ten corresponding to the minimum effective rate (Re], the type inspection is judged to be unqualified. 4.4 Disposition after type inspection The disposal of type inspection shall be carried out in accordance with the provisions of 5.12 of GB/2829…2003. 7. Marking, packaging, transportation and purchase 7.1 Marking 7.1.1 The following markings shall be on the outer packaging box Trademarks ：
Product name:
Manufacturer:
Production date:
Quantity, size
7.1.2 Product standard number mark
Product packaging should be marked with the standard code and the product ... (1 place when required), 50 pieces per section, the box contains the product certificate
7.2.3 When the product is shipped, it is shipped in double-barreled boxes, 8 to 10 boxes per box, and the boxes are sealed with packing tape. 7.3 Transportation
During the transportation of the product, the product must be kept dry, strictly protected from rain, and strictly shipped together with flammable, dusty, and corrosive items. When the product is packed, it should be handled with care. 7. 4
7.4.1 The product must be handled carefully, and the air conditioning sheet can prevent rain from being placed inside. It is forbidden to be in contact with flammable, toxic, and corrosive items: the indoor relative temperature is not more than 80%. 7.4.2 The product must be in the correct transportation and storage conditions. From the beginning of the first hour, the product quality should be guaranteed within eight hours.
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