QB/T 2529-2001 Industrial sewing machine GK type cylinder bed interlock sewing machine head
Some standard content:
Classification No. Y
Registration No. 9493-2001
People's Republic of China Light Industry Industry Standard
QB/T2529-2001
Industrial sewing machine
GK type simple interlock sewing machine head
Published on 200F-11-15
Published by China Light Industry Federation
Implementation on 2002-05-01
QB/F2529-2D01
This standard is for GB/T12112-1989 industrial sewing machine GK type commercial cover chain stitch reverse sewing machine head (the standard was issued by the State Light Industry Bureau [1999112 Document No. QT3716-1999, the same as before). This standard has revised the technical contents of the original standard as follows: the standard has added content, and the terms and symbols have been added: the basic reference has been divided into sections: the external quality has been supplemented: the starting specification has been changed to the user's dynamic transmission: the running performance has been revised to make it consistent with the relevant standards: the lubrication conditions of automatic oil supply have been improved: the total inspection method has been carried out, and the sampling table of GB 2825-1987 "end batch inspection counting address sample change sampling table" and the sampling method of G3/T2929-1987 ≤ state period information inspection sampling disorder and shooting sample table have been adopted: except for the main machines. This standard is condensed by the General Business Department of China Machinery Industry Federation and published by the National Machinery Standardization Center. This standard was drafted by: Shanghai Xugong Sewing Machine Factory No. 2, Guanjin Shiyi Sewing Machine Co., Ltd., Shanghai Sewing Machine Research Institute. The main drafters of this standard are: Sun Shuhan, Chu Shoulong, Zhang Zhuishi, and. From the date of implementation, the original industry standard QB/T3716-1999 issued by the National Light Industry Bureau will be abolished. YYKANKAA
Light Industry Industry Standard of the People's Republic of China
Industrial Sewing Machine
GK Type Cylinder Type Interlock Sewing Machine Head
QB/T2529-2001
Replaced by QB/3776-1999
The standard specifies the product classification, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of GK Type Simple Sewing Chain Sewing Machine Head.
This standard is suitable for sewing simple paper chain sewing machine heads with 0 or 600 stitches for sewing ten-series and weaving materials (hereinafter referred to as "machine heads").
2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are all effective and new standards. The parties using this standard should explore the possibility of using the latest version of the following standards.
G191:2000 Effective and new standards
G1/T282$-1957 Batch-by-batch sampling/sequence and sampling table (for continuous batch inspection) CET2829-198?
GR/T 4515-1984
GB 9969.1-1998
Periodic inspection summary sample pulling process production equipment throwing sample table (applicable to the production process stability inspection) battle trace classification and terminology
5 industrial product display instructions 1 General provisions
GB/T16469-[996 Sewing machine equipment
QR/T 1177—1591
Q/T2251—1596
QB/T 2252—1996
3 Product classification
3.1 Type
All-in-one chain machine·End-level test method for sewing machine model building rules
Continue the test method of the machine head and shoulder rotation
The driving head is a simple lever body, which is practical for the needle bar to arrange the thread, the curved needle is not loaded, and the downward feed is inclined, forming the 400-type multi-thread chain stitch specified in G4515 or adding a fork gauge 3.2 Basic derivatives
Maximum sewing speed
With automatic oil supply: 300 needles/min
Without automatic oil supply: 2000 min~3000 seals/min, b Stitch length Medium and thick material 1.8mm~3.6mm:
Lifting height without text is not less than Gaau, with fork needle is not less than 4d) External needle space sub-recommended specification 2.8m m, 4.0mm, 4.8mm, 5.1mm: China Light Industry Committee Taiwan Committee 2001-11-15 standard
2002-D5-01 implementation
QB/T2529-2001
) Using machine needle GK×16 type
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f) Using chain line 9.5lex×3 (60S/3), 7 .5lexx4 (80S/4) cotton thread or static wheel thread: g motor 4[MW
3.3 Classification
The product is divided into the following categories according to the number of needles and the different traces: a) double needle three thread coin type (% type) thread chain: b) one needle four thread chain type (407 type) thread reverse: d) three needle five thread lithium benefit stitch [605 type) stitch. 3.4 Product code
It shall be made according to the provisions of QBT2251 or according to the preparation rules registered by the enterprise in the National Sewing Machine Standardization Center,
4 Technical requirements
4.1 Appearance quality
4.1.1 The machine head surface shall not have rust spots or dirt; the markings shall be complete, the position shall be good, and there shall be no obvious damage. 4.1.2 The external parts and the nail heads of the machine head shall be free of hair marks. 4.1.3 The surface of the electric bamboo escape layer should be free of rust and peeling. The main surface should have no obvious bubbles, spots, pinholes and burrs, and should be smooth, flat and natural in color.
4.14 The surface of the parts should be free of foreign matter, with a dense oxide film, and should not have red sediment, spots, machine damage or rust defects.
4.1.5 The surface of the parts should be uniform in color, flat and smooth, without obvious impurities, sagging, bubbles, bulging, bulging, pinholes, pits, cracks, scratches, damage and other defects. 4. 2 Machine performance
4.2.1 The stitch length, chain tension and presser pressure should be adjustable. 4.2.2 The presser foot lifting
The lifting height should meet the requirements of 3.2c, and the presser foot lifting lock should be able to loosen the thread. 4.2.3 Stitch length
The range of elimination shall be in accordance with the provisions of 3.2b,
4.9 Chain sewing performance
The test conditions of 5.3 and 1 garment shall be determined. There shall be no defects such as broken needles, broken threads, skipped stitches, floating threads, and flower stitches during sewing. The stitches on the surface of the material shall be neat and even. 4.3.1 Through stitching: sewing length [m,
4.3.2 Thick material chain; sewing length 1m,
4.3.3 Layer seam: continuous sewing length 0.5m, continuous sewing 3 rows. 4.3.4 Continuous sewing length m.
4.3.5 High and low speed chain: warp sewing length 0.5m, commercial and low speed 1 row each, the thread length should be basically the same, and the relative error of the length is not more than 17%.
4.3.6 Thread sewing period: The thread should be temporarily extended and the length should not be less than 50mm (this requirement does not apply to 400 type stitches) 4.4 Rotation performance
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4.4.1 Operation noise
08/T 2529-2001
There should be no abnormal noise when running at the highest sewing speed: b) The noise level should not be less than 83dn(A).
4,4.2 The dynamic torque should not be greater than 0.4N·m4.4.3 Lubrication
The oil supply and maintenance of the lubrication system should be good. 44.4 Seal
The sealing of the machine head should be good, and there should be no rolling pre-oil phenomenon on the main joint surface 4.5 Accessories and spare parts
The rigid parts and spare parts equipped with the machine head should comply with the product instruction manual or packing list. 5 Test method 5.1 External quality test sheet Under the light intensity of 600 ± 200) lx, the test distance is 300mm: daily test judgment. 5.1.1 Concave surface of machine head 5.1.2 Exposed work of machine head 5.1.3 Electroplated parts 5.1.4 Photocoated parts 5.1.5 Painted parts 5.2 Machine performance 5.2.1 Adjustment of chain tension, bed foot pressure and wire length in the "chain performance test" item shall be adjusted according to the method specified in the product manual. 5.2.2 Lifting of the presser foot
Lifting degree: Lift the presser foot to the limit position, turn the dynamic wheel to feed the material below the needle level, and the special gauge can freely extend under the presser foot.
Practical effect: Open the presser foot upwards, and there should be an obvious gap between the clamping line and the clamping line. 5.2.3 Maximum stitch length
Carry out the “first chain sewing” specified in Table 1, use a vernier ruler to measure the total length of 10 consecutive stitches on the specified seam, and take its arithmetic flat groove value.
5.3 Chain toughness test
Before the test, clean the outer surface of the bar head, and remove the dirt on the needle plate, feed dog, bent needle and thread position. Add lubricant and run it for 5 minutes at 80% of the high seam. Test each item according to the provisions of Table 1: b) The chain speed is tested with a non-contact tachometer. During the test, the chain sewing speed is allowed to differ by -3%. Before each test, it is allowed to try the chain and adjust the thread tension, grease pressure, or stitch length collection dog height. Adjustment is not allowed during the formal test.
Test items
Layer sewing
Continuous sewing
Thread sewing
Needle used
B/T2529—2001
Table 1 Chain performance test conditions
Used chain method
(80844)
Cotton knot type rewinding
(60S/3)
Cotton thread type thread
7.4ter×4
Wrapped and burned dragon thread
(80S /4)
According to the war mosquito stealing natural thread
taasi?
Grid line anti-lacquer part
t80s/4)
Cotton is said to be burning thread
1Bte yuan fee 14tex
3 or
181ex/281ex
[32 or 2]]
Cotton wool
(32)
Cotton wool has
(32)
Bangmao line||tt| |(32g)
150x150
1003x150
700×150
2003150
7c0x:50bzxZ.net
700X150
Layer seam test material diagram
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Female road degree
Rong Shangyou speed
Avoid high speed
B0%
Maximum energy speed test material cool inner
80%| |tt||The minimum difference
Business speed:
1
Grow the sample
into a bad state,
and||measure the minimum speed
with a group mark card
ruler|||the minimum speed is: 110 lines
The maximum sewing speed
is calculated
meter average
5.4 Running performance
5.4.1 Running noise
It can be judged by ear
QB/T 2529—2001
6) Determination of noise sound pressure level Test according to B 11 5. 4. 2 Dynamic torque Test according to QBT2252
5.4.3 Test the oil supply at the highest sewing speed and 50% of the highest sewing speed. ) Visually inspect the oil supply of the oil window and the oil return screw (dynamic oil supply?: 6) Visually inspect the oil volume of the needle bar, connecting rod and other main parts of the oil line, 5.4.4 Micro
After the "spinning test" item, run at 90% of the highest sewing speed for 10s and stop for 2s. After running for 10 minutes, the needle lamp, the positive width, the mountain board, the machine joint surface and other temporary positions shall not be exposed to oil. After the "reverse sewing" test, the seam should be free of oil residue and oil leakage.
5.5 Inspection attachments
Check the manual or packing list item by item, and do not exceed the specified number. 6 Inspection regulations
6.1 Production must pass the quality inspection at the beginning of the production period, and be accompanied by a certificate of conformity (the certificate shall indicate the standard number adopted by this product). There shall be no continuous thread warp seam samples under the pressure warehouse, and the size of the whole sample shall be 1mm×mm. 8.2 Inspection classification
Product inspection is divided into factory inspection and type inspection. 6.2.1 Factory inspection
When the product is delivered, the receiving party has the right to conduct acceptance according to the factory inspection items specified in this standard. 6.2.2 Type inspection
When one of the following circumstances occurs, the reverse type inspection shall be carried out. b) Formal production, if there are major defects in structure, materials, and process that may affect product performance: Normal production should be periodically inspected once a month: When the product is stopped for a long time and production is resumed: e) When there is a big difference between the factory inspection result and the secondary type inspection, f) When the superior quality supervision agency proposes a type inspection. 6.3 Inspection items, qualified grades and inspection categories are shown in Table 2. 6.4 Factory inspection rules
6.4.1 Sampling
Samples should be randomly selected from the inspection batches submitted. 6.4.2 Sampling method and strictness
The sampling plan for the inspection of the belt is as follows: 3. The strictness is determined in accordance with the provisions of 4.6 of GB/T2828-1987. 6.4.3 Demarcation of qualified or unqualified inspection batches According to the results of sample control, if the number of Class A unqualified products and Class B unqualified products is less than or equal to the corresponding qualified judgment number (A) in the sample, the inspection batch shall be determined as unqualified. If the number of Class A unqualified products and Class B unqualified products is greater than or equal to the corresponding unqualified judgment number (A) in the sample, the inspection batch shall be determined as unqualified.
6.4.4 Disposal of unqualified batches after inspection
The disposal of unqualified batches after inspection shall be in accordance with the provisions of 4.12 of GB/T2828-1988. 6.5 Type inspection rules
6.5.1 Sample extraction
The sample size shall be selected from one or two batches manufactured in this cycle and passed the factory inspection. It shall be ensured that the obtained samples can represent the manufacturing or technical level of this period.
White. 5.2 Sampling plan
The sampling plan for type inspection is shown in Table 4.6.5. The judgment of whether the type inspection is qualified or unqualified shall be carried out in accordance with the provisions of 6.4.3.
6.5.4 Disposition after type inspection
The disposal after type inspection shall be in accordance with the provisions of 4.12 of Technical GH2829-1987. Table 2 Inspection items, non-conforming categories and inspection categories No. Inspection month 411 Head time 412 External characteristics 413 Electrical certificate 4:.4 Emission characteristics 4.1.5 Comprehensive effect 42.1 Machine adjustment 42.2 Lifting and releasing products after lifting 12.3 Find the delivery length 4 3. 1 Some common fibers
432 Thick sewing
433 Yes
131 Continuous sewing
4.3 High and low speed sewing
436 Cutting
44: m Normal content
4.4.1b) Sound pressure level
4.4.2 Vibration characteristics
4.4.3 Run
4.4.4 Intact
4,5 Accessories and spare parts
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Inspection classification
World standard
26~~150
E51~1200
Control water level A
Cotton mixing as a case
Unqualified classification
No single inspection teaching average number
Qualified quality level (AQI)
Sample word two
General: Pole car unit is each level machine head
QB/T2529—2001
Factory inspection sampling plan
Sample size
Normal inspection one test sample
2. A, R of class A are calculated by non-qualified products, A, R of class B, C are calculated by non-qualified numbers, Table 1 Type inspection sample plan| |tt||Liu different level
Sampling method
Under normal classification
Column Huali test items
Small qualified quality underwater)
Sample treasure into life
rotten: 1. Sample single copy for each resistance head: A
time sampling
2. Class A, with this meeting special products, B, C, chemical with no standard teaching design ball mark, packaging, transportation, storage
7.1 Standard table
7.11 Model head effect we need to bid,
factory name:
5 trademark:
c, product number:
adopt standard number,
e: production date or number
7.1.2 According to the provisions of B191, the outer packaging of the machine head should have the following signs. Trademark:
b) Model and name:
e) Manufacturer name:
Tonnage system production month number
Number, weight and volume:
f) Furnace operation instructions; avoid condensation, upward, carefully place and stack. 7.2 Product Instructions
QB/F2529-20D1
The product instructions should comply with the provisions of GB9969.1, 7.3 Packaging, transportation, storage
Packaging, transportation and storage should comply with the provisions of GB/T6409. -TY KAbNBY KAca-
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