This standard specifies the product classification, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of computer-controlled embroidery machines. This standard applies to computer-controlled embroidery machines that sew lockstitch. QB/T 2151-1995 Industrial sewing machines Computer-controlled embroidery machines QB/T2151-1995 Standard download decompression password: www.bzxz.net

Light Industry Standard of the People's Republic of China
Industrial Sewing Machine
Subject Content and Applicable Scope
Microcomputer Controlled Embroidery Machine
QB/T2151-1995
This standard specifies the product classification, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of computer controlled embroidery machines.
This standard applies to microcomputer controlled embroidery machines that sew lockstitch. 2 Reference standards
GB/T2828 Sampling procedure and sampling table for batch inspection (applicable to inspection of continuous batches) GB/T2829 Sampling procedure and sampling table for periodic inspection (applicable to inspection of stability of production process) GB/T3797 Electric control equipment equipped with electronic devices GBn193 General technical conditions for packaging of export machinery, electrical engineering, instrumentation products FJ/T527 Measurement method of sound pressure level of textile machinery QB/T1177 Test method of noise level of industrial sewing machine 3 Product classification
3.1 Type
This machine has single or multiple heads, and adopts microcomputer control to realize feeding in X and Y directions to form lock stitch, which can carry out multi-color or single-color embroidery.
3.2 Basic parameters
Maximum embroidery speed: not less than 650 stitches/min (stitch distance 4mm); h.
Maximum stitch distance: ternary 12.1mm, binary 12.7mm, basic data encoding method: binary, ternary: number of stored stitches: not less than 130,000 stitches, not less than 16,000 stitches for EPRON, number of stored patterns, not less than 99, not less than 10 for EPRON; needle used: Nn70110;
sewing thread used: needle thread 13.3tex/2s2 rayon thread or similar embroidery thread, shuttle thread 14tex/2sz cotton sewing thread: working environment:
power supply: should comply with the provisions of 3.2.6.1 of GB/T3797. Humidity: 5~40℃.
relative humidity: 40%~85% (25℃ without condensation). Pollution: It shall comply with the provisions of 3.2.2 of GB/T3797. 3.3 Model designation method
Named according to the provisions of GB/T4514, example: Approved by China Light Industry Association on October 24, 1995
Implemented on June 1, 1996
4 Technical requirements
4.1 Basic requirements
18-612
4.1.1 Appearance quality
QB/T 2151-1995
Twelve heads
Registration number
Lock stitch, decorative seams, microcomputer control to achieve XY direction feeding
Industrial sewing machine
4.1.1.1 The surface of the painted parts shall be flat and uniform in color, and there shall be no obvious defects such as bubbles, sagging and knock-off in the main visible parts. 4.1.1.2 The surface of electroplated parts should be flat and uniform in color, without rust or peeling, and the main surface should be free of obvious bubbles, spots, pinholes and burrs. 4.1.1.3 The surface of blackened parts should be uniform in color, without unoxidized spots, sediments, spots, scratches, rust and other defects. 4.1.1.4 Exposed parts and components should not have burrs. 4.1.1.5 The surface of the same type of plastic parts on the same platform should be uniform in color, without obvious shrinkage, scratches and other defects. 4.1.1.6 The surface of the table should be flat and smooth, without degumming, stains, scratches and other defects. 4.1.1.7 The surface of the control box should be flat and uniform in color, without obvious dents, scratches, cracks, deformation and other defects. 4.1.1.8 The sign should be clear, complete and correctly positioned. 4.1.1.9 The surface of the frame should be smooth, flat, without scratches, deformation and uniform in color. 4.1.1.10 The electrical wires and connectors shall be arranged neatly, firmly and clearly marked. 4.1.2 Machine performance
4.1.2.1 The tension of the needle thread and shuttle thread shall be adjustable. 4.1.2.2 Parking accuracy
When parking, the main shaft rotation angle position shall be correct, and the repeated parking accuracy shall be basically accurate. The tolerance of the color-changing model is ±2.5°, and the non-color-changing model is ±10%.
4.1.2.3 Needle and thread detection
When the needle and thread are used up or broken, it shall be able to stop and indicate automatically. 4.1.2.4 Speed ​​regulation performance
The embroidery speed can be set manually or automatically adjusted during the embroidery process. 4.1.2.5 Stitch length
The maximum stitch length shall comply with the provisions of 3.2.
4.1.3 Microcomputer Function
4.1.3.1 The number of stored patterns shall comply with the provisions of 3.2. 4.1.3.2 The number of stored stitches shall comply with the provisions of 3.2. 4.1.3.3 Mending Embroidery
After the thread is broken, the machine head with the broken thread can be used for mending embroidery. After the mending embroidery is completed, all machine heads can automatically continue embroidery. 4.1.3.4 Manual Frame Shift
When the machine stops, the frame can be moved to any position within the embroidery range. 4.1.3.5 Fault and Misoperation Protection
When the machine fails or is misoperated, it can automatically stop and indicate the fault and error type. 397
4.1.3.6 Display Function
QB/T 2151-—1995
The display device should be able to correctly display the working parameters and status. 4.1.4 Embroidery performance
When the embroidery test is carried out according to the conditions specified in Table 1 and in accordance with the following requirements, there shall be no defects such as broken needles, broken threads, skipped stitches, floating threads, exposed shuttle threads, etc., and the stitches shall be arranged according to the designed pattern.
Test items
4. 1. 4. 1
Ordinary embroidery
Embroidery on thin materials
Continuous embroidery
Mirror transformation of pattern
Scaling of pattern
Rotation of pattern
Stitch distance
Needles used
Random needles
4.1.4.1 Ordinary embroidery
Thread used
tex/2sz
Rayon
14tex/2s2
Test conditions
Patterns used
A pattern should have stitches of different lengths and skips, and the number of stitches should not be less than 2000
A pattern should have stitches of different lengths and skips, and the number of stitches should be 3000-4000
A color-changing pattern with more than 12000 stitches. Models with automatic color change function must change colors more than 3 times (including 3 times) Unequal pentagon
Self-made pattern
Sewing speed, needle/min
Automatic speed adjustment
After embroidering a pattern with more than 2000 stitches of different lengths, the pattern should be consistent with the input pattern. 4.1.4.2 Thin material embroidery
Flannel
Add paper village
Polyester cotton cloth
Add paper backing
120~130 medium plain cloth
Add paper backing
509~611 yarn card
Door-lined paper
After embroidering a pattern with more than 2000 stitches of different lengths, in addition to meeting the above requirements, the test material should not have obvious shrinkage after removing the test material.
4.1.4.3 Continuous embroidery
Continuous embroidery 12000 stitches, the number of thread breaks for more than 6 heads shall not exceed 1/2 of the total number of heads, and the number of thread breaks for less than 6 heads (including 6 heads) shall not exceed 3 times. 4.1.5 Operation performance
4.1.5.1 Noise
The sound pressure level of the embroidery machine noise shall not exceed 85dB (A). 4.1.5.2 Normal operation
During the entire test, the operation shall be normal, and there shall be no mechanical jamming, parts falling off or loosening. 4.1.5.3 Mechanical operating parts shall have protective covers. 4.1.6 Electrical performance and safety
4.1.6.1 Anti-interference
According to the provisions of 3.10.6.3.10.6.1 and 3.10.6.2 of GB/T3797. 4.1.6.2 Insulation resistance
According to 3.8.1 of GB/T3797.
4.1.6.3 Dielectric strength
Should meet the requirements of 3.8.2 of GB/T3797. 398
4.1.6.4 Protection against electric shock
QB/T 2151—1995
According to the relevant provisions of 3.10.1 of GB/T3797. 4.1.6.5 Grounding
Should meet the requirements of 3.10.7.1 of GB/T3797. 4.1.7 Accessories and spare parts
The accessories and spare parts equipped with each embroidery machine shall meet the requirements of the packing list or product instruction manual. 4.2 Extended requirements
4.2.1 Automatic thread trimming
When changing colors or when embroidery is finished, the needle thread and shuttle thread can be automatically cut. 4.2.2 Color changing function
The color can be changed manually or automatically, and it should be flexible, correct and reliable. 4.2.3 Pattern mirror transformation
The pattern can be mirror transformed.
4.2.4 Pattern scaling
The pattern can be scaled in X.The Y direction can be reduced or enlarged by 50% or 200% in units of 1%. 4.2.5 Pattern rotation
The pattern can be rotated within 360° of the plane, and the minimum rotation angle is 1. 4.2.6 Pattern editing
The pattern should be able to be copied, split, combined, deleted, and edited. 4.2.7 Long stitch jump
In embroidery, when the stitch length exceeds the set length, the machine can automatically track the embroidery. 4.2.8 Frame fast shift
When the machine is started, the spindle does not rotate, and the frame can be quickly moved to the set position. 4.2.9 Frame separate feeding
When the machine is started, the spindle does not rotate, and the frame can be fed one by one according to the pattern stitches. 4.2.10 Frame retreat
When embroidery is interrupted, the frame can retreat to the set position. 4.2.11 Set another frame starting position
The frame can be set to any other position. After the machine is started, the frame should be able to automatically move from the other starting position to the original super-embroidery point of the pattern and then start embroidery. After the embroidery is finished, the frame should be able to return to the other starting position. 4.2.12 Power-off memory
When the power is off, the pattern data in execution should be retained, and embroidery can continue when the power is on. 5 Test method
5.1 Basic requirements test
5.1.1 Appearance quality
Under the light intensity of 600±2001x, the inspection distance is 300mm, and it is judged by visual inspection. 5.1.2 Machine performance
5.1.2.1 Thread tension adjustment mechanism
It is carried out in the embroidery performance test project.
5.1.2.2 Parking accuracy
During the embroidery process, the machine is stopped 5 times. The parking angle position when stopping can meet the requirements of 4.1 and 2.2. 5.1.2.3 Needle and thread detection
QB/T2151 --1995
Needle and thread are used up or broken artificially, and the judgment is made by daily test. 5.1.2.4 Adjustment performance
Manual speed control, visual embroidery speed should change, and automatic speed control should be tested when the stitch length jumps and embeds embroidery. 5.1.2.5 Stitch length
Test in the test item 5.1.4.
5.1.3 Microcomputer function
5.1.3.1 Number of patterns stored
According to the provisions of 4.1.3.1, any pattern can be selected for embroidery, which should be consistent with the input pattern. 5.1.3.2 Number of stitches stored
Perform in 5.1.3.1, and at the same time check the number of stitches remaining in the display. 5.1.3.3 Mend Embroidery
The microcomputer control switch is set to the position of no detection of thread breakage. After the thread is broken manually and the thread is empty, the machine can be restarted and the machine can go back to mend embroidery and other machine heads can automatically continue embroidery.
5.1.3.4 Manual frame shifting
Before starting 4 and 1.4.1.
5.1.3.5 Fault and misoperation protection
Set up a misoperation at will and visually check whether the misoperation type is displayed and the machine stops automatically. 5.1.3.6 Display function
Visually check during the whole test.
5.1.4 Embroidery performance test
Before the test, the cloth and dirt in each part should be cleaned and lubricating oil should be added according to the instructions; the embroidery speed is allowed to be reduced by 3% and tested with a non-contact speedometer. Before the test, the tension of the needle and shuttle thread can be adjusted. If the test does not meet the requirements, it is allowed to adjust and try again. The test conditions are shown in Table 1.
5.1.5 Operation performance test
5.1.5.1 Noise test shall be carried out in accordance with FJ/T527 (for two-end or less models, it shall be carried out in accordance with QB/T1177) 5.1.5.2 Normal operation test shall be carried out in 5.1.4, by listening and visual inspection. 5.1.5.3 Visual inspection of mechanical protection cover.
5.1.6 Electrical performance and safety
5.1.6.1 Anti-interference
Test according to the methods in 4.14, 4.14.1, 4.14.1.1, 4.14.1.2 and 4.14.2 of GB/T3797. 5.1.6.2 Insulation resistance
Test according to the method in 4.3 of GB/T3797.
5.1.6.3 Dielectric strength
Test according to method 44 of GB/T3797.
5.1.6.4 Protection against electric shock
Visual inspection shall meet the relevant requirements of 3.10.1 of GB/T3797. 5.1.6.5 Grounding
Visual inspection shall meet the requirements of 3.10.7 of GB/T3797. 5.1.7 Inspection of accessories and spare parts
Inspect item by item according to the provisions of the packing list or product instruction manual, and the number shall not be less than the specified number. 5.2 Extended requirement test
5.2.1 Automatic thread trimmer (except for those without automatic thread trimmer) 400
QB/T2151—1995
Perform in 5.1.4, the needle and shuttle thread shall be able to be cut, and the needle and thread shall be hooked and clamped. 5.2.2 Color change function
Perform in the thin material embroidery and continuous embroidery test in 5.1.4. 5.2.3 Pattern mirror transformation
Perform in 5.1.4.
5.2.4 Pattern scaling
Perform in 5.1.4, the set pattern is scaled at 50% and 200%. 5.2.5 Pattern rotation
Perform in 5.1.4, the set pattern is rotated at 45°, 120° and 285°. 5.2.6 Pattern editing
Perform in 5.1.4.
Split, combine and delete the pattern through the keyboard, a.
b. Use the copy key to visually check that the embroidered pattern should be consistent with the original pattern. 5.2.7 Long stitch jump
Test in the test item in 5.1.4.
5.2.8 Rapid frame shift
Stop the machine after the number of stitches displayed on the keyboard reaches 500 according to 4.2.8, and visually inspect. 5.2.9 Single frame feed
Stop the machine after the number of stitches displayed on the keyboard reaches 500, and visually inspect. 5.2.9 Single frame feed
Stop the machine after visually inspecting the machine according to 4.2. 9. 5.2.10 Frame retraction
Embroider at 200, 400, and 650 stitches/min for 1 minute, then retract the frame after stopping the machine. Visually inspect that the frame should return to the starting position or the set position.
5.2.11 Set another frame starting position
Reset the frame starting position before the ordinary embroidery test in 5.1.4, and check it during the test. 5.2.12 Power-off memory
Turn off the power supply manually for 10 minutes during the embroidery process, then turn on the power supply again for visual inspection. 6 Inspection rules
6.1 Products must pass the inspection of the inspection department before leaving the factory, and be accompanied by an inspection certificate. 6.2 Inspection classification
Product inspection is divided into factory inspection (delivery inspection) and type inspection (routine inspection). 6.2.1 Factory inspection
When the product is delivered, the consignee has the right to inspect and accept it according to the factory inspection items specified in this standard. 6.2.2 Type inspection
Type inspection should be carried out in the following circumstances. Trial and type identification of new products or old products for production conversion; a.
After formal production, if there are major changes in structure, materials, and processes that may affect product performance, inspection should be carried out after one year of normal production;
d. When the product is resumed after one year of suspension; when the factory inspection results are significantly different from the last type inspection, e.
When the superior quality supervision agency proposes a requirement for type inspection. 6.2.3 Product quality characteristics and inspection categories
Product quality characteristics and inspection categories are shown in Table 2. 401
Inspection items
4.1.1.1 Painted parts
4.1.1.2 Electroplated parts
4.1.1.3 Blackened parts
4.1.1. Exposed parts
4. 1. 1.5 Plastic parts
4.1.1.6 Table surface
4.1.1.7 Pad box surface
4.1.1.8 Label quality
4.1.1.9 Rocker surface
4.1.1.10 Firm installation
4.1.2.1 Adjustment mechanism
4.1.2.2 Parking accuracy
4.1.2.3 Needle thread detection
4.1.2. 4 Speed ​​regulation performance
4.1.2.5 Stitch length
4.1.3.1 Digital storage of patterns
4.1.3.2 Number of stored stitches
4.1.3.3 Mend embroidery
4.1.3.4 Manual frame shifting
4.1.3.5 Fault protection
4.1.3.6 Display function
4.1.4.1 Continuous embroidery
4.1.4.2 Thin material embroidery
4.1.4.3 Continuous embroidery
6.3 Factory inspection rules
6.3.1. Sample extraction
QB/T2151-1995
Classification of quality characteristics Inspection classification
Samples should be randomly extracted from the inspection batch submitted. 6.3.2 Sampling plan
Inspection items
1.5, 1 Sound
4.1-5.2 Normal operation
4.1.5.3 Mechanical protection
4.1.6.1 Anti-interference
4.1.6.2 Insulation resistance
4.1.6.3 Dielectric strength
4.164 Live protection
4.16.5 Grounding
4.1.7 Accessories and spare parts
4.2.1 Automatic thread trimming
4.22 Color changing function
4.2.3 Mirror transformation
4.2. Pattern scaling
4.2.5 Pattern rotation
4.2.6 Pattern editing
4.2.7 Long stitch jump
Expand||4.2.8 Frame shift
4.2.9 Frame feeding
4.2.10 Frame retraction
4.211 Set the starting position separately
4.2, 12 Power-off memory
Quality characteristics classification
Inspection classification
Normal inspection The primary sampling plan and the judgment of whether the batch is qualified or not are shown in Table 3 or Table 4. The determination of strictness shall be in accordance with the provisions of 4 and 6 in GB/T2828. 402
Batch range
Inspection level
Sampling plan
Unqualified classification
Number of inspection items for sample unit
Qualified quality level (AQL)
Sample code
Note: ①The sample unit is 1 embroidery machine.
QB/T2151-1995
Sample size
②A, B, C categories A, R are counted as unqualified numbers. ③This table is only applicable to models with basic requirements. Inspection level
Sampling plan
Non-conforming classification
Number of sample units tested
Qualified quality level (AQL)
Batch range
1～15
Sample code
Note: ① Sample unit is 1 embroidery machine
Sample size
② A, R of A, B, C categories are counted by the number of non-conforming products. ?This is only applicable to machines with basic and extended requirements. 6, 3.3 Disposal of non-conforming products and batches after inspection. Table 4
Disposal of non-conforming products and batches after inspection shall be in accordance with 4.12 of GB/T2828. 6.4 Type inspection rules
6.4.1 Sample extraction
Normal inspection single sampling
Normal inspection single sampling
Samples should be extracted from a batch or batches manufactured in this cycle and qualified by factory inspection, and the obtained samples should be guaranteed to represent the manufacturing technology level of this cycle.
6.4.2 Sampling plan and qualified or unqualified judgment are shown in Table 5 or Table 6. Table 5
Discrimination level
Sampling plan
Unqualified category
Sample unit number of inspection items
Unqualified quality level (RQL)
Qualified, unqualified
Determination number
Note ① The sample unit is each embroidery machine.
Sample size
Sampling times
②A, R of A, B, C categories. Counted by the number of unqualified items. ③This table is only applicable to the models with basic requirements. Judgment level
Sampling plan
Unqualified category
Number of inspection items in sample unit
Unqualified quality level (RQL)
Qualified, unqualified
Number of judgment courts
Note: ①The sample unit is each embroidery machine. QB/T2151--1995
Sample size
②A, R. of A, B, C categories are counted by the number of unqualified items. ③This table is only applicable to the models with basic requirements and expanded requirements. A
6.4.3 The disposal after type inspection shall be in accordance with the provisions of 4.12 of GB/T2829. 7 Marking, packaging, transportation, storage
7.1 Marking
The following markings shall be on the embroidery machine:
Manufacturer's name,
Trademark,
Product model and name:
Manufacture date or factory number:
Power supply voltage:
Machine power.
7.2 Packaging, transportation, storage
According to 1.1 of GBn193.
8 Quality assurance
Sampling once
The regulations on transportation, storage, installation, use, maintenance and repair of this product shall be followed: If the machine cannot work properly due to poor manufacturing quality within 12 months from the date of shipment, the manufacturer shall repair or replace parts for the user free of charge. Additional remarks:
This standard is proposed by the Quality Standards Department of China Light Industry Association. This standard is under the jurisdiction of the National Sewing Machine Standardization Center. This standard was drafted by Beijing First Light Industry Research Institute of Qingdao Computer Embroidery Machine Factory. The main contributors to this standard are Huang Shunchi, Du Xianming, Xia Weili, Zheng Jianjun and Wu Haihong.2 The sampling plan and the judgment of pass or fail are shown in Table 5 or Table 6. Table 5
Discrimination level
Sampling plan
Unqualified category
Number of inspection items of sample unit
Unqualified quality level (RQL)
Pass, unqualified
Number of judgments
Note ①The sample unit is each embroidery machine.
Sample size
Sampling times
②A, R of A, B, C. Counted by the number of unqualified. ③This table is only applicable to the models with basic requirements. Judgment level
Sampling plan
Unqualified category
Number of inspection items of sample unit
Unqualified quality level (RQL)
Pass, unqualifiedbzxz.net
Number of judgments
Note: ①The sample unit is each embroidery machine. QB/T2151--1995
Sample size
②A, B, C categories A, R. Count by number of unqualified. ③This table is only applicable to models with basic requirements and extended requirements. A
6.4.3 Disposal after type inspection shall be in accordance with 4.12 of GB/T2829. 7 Marking, packaging, transportation, storage
7.1 Marking
The following markings shall be on the embroidery machine:
Manufacturing name,
Trademark,
Product model and name:
Manufacturing date or factory number:
Power supply voltage:
Machine power.
7.2 Packaging, transportation, storage
In accordance with 1.1 of GBn193.
8 Quality Assurance
Single Sampling
The regulations on transportation, storage, installation, use and maintenance of this product shall be followed: If the machine cannot work properly due to poor manufacturing quality within 12 months from the date of delivery, the manufacturer shall repair or replace parts for the user free of charge. Additional Notes:
This standard was proposed by the Quality Standards Department of the China Light Industry Association. This standard is under the jurisdiction of the National Sewing Machine Standardization Center. This standard was drafted by the Beijing First Light Research Institute of Qingdao Computer Embroidery Machine General Factory. The main contributors to this standard are Huang Shunchi, Du Xianming, Xia Weili, Zheng Jianjun and Wu Haihong. 4042 The sampling plan and the judgment of pass or fail are shown in Table 5 or Table 6. Table 5
Discrimination level
Sampling plan
Unqualified category
Number of inspection items of sample unit
Unqualified quality level (RQL)
Pass, unqualified
Number of judgments
Note ①The sample unit is each embroidery machine.
Sample size
Sampling times
②A, R of A, B, C. Counted by the number of unqualified. ③This table is only applicable to the models with basic requirements. Judgment level
Sampling plan
Unqualified category
Number of inspection items of sample unit
Unqualified quality level (RQL)
Pass, unqualified
Number of judgments
Note: ①The sample unit is each embroidery machine. QB/T2151--1995
Sample size
②A, B, C categories A, R. Count by number of unqualified. ③This table is only applicable to models with basic requirements and extended requirements. A
6.4.3 Disposal after type inspection shall be in accordance with 4.12 of GB/T2829. 7 Marking, packaging, transportation, storage
7.1 Marking
The following markings shall be on the embroidery machine:
Manufacturing name,
Trademark,
Product model and name:
Manufacturing date or factory number:
Power supply voltage:
Machine power.
7.2 Packaging, transportation, storage
In accordance with 1.1 of GBn193.
8 Quality Assurance
Single Sampling
The regulations on transportation, storage, installation, use and maintenance of this product shall be followed: If the machine cannot work properly due to poor manufacturing quality within 12 months from the date of delivery, the manufacturer shall repair or replace parts for the user free of charge. Additional Notes:
This standard was proposed by the Quality Standards Department of the China Light Industry Association. This standard is under the jurisdiction of the National Sewing Machine Standardization Center. This standard was drafted by the Beijing First Light Research Institute of Qingdao Computer Embroidery Machine General Factory. The main contributors to this standard are Huang Shunchi, Du Xianming, Xia Weili, Zheng Jianjun and Wu Haihong. 404
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