This standard specifies the requirements, test methods, inspection rules and marking, packaging, transportation and storage of the rotary hook of industrial sewing machine high-speed lockstitch sewing machine. This standard applies to the rotary hook used in GC type high-speed lockstitch sewing machine for industrial sewing machine (hereinafter referred to as "rotary hook") QB/T 2611-2003 Industrial sewing machine high-speed lockstitch sewing machine rotary hook QB/T2611-2003 Standard download decompression password: www.bzxz.net

TCS61.080
Classification number: Y17
Registration number: 131432504
Light Industry Standard of the People's Republic of China
QB/T2611—2003
Industrial sewing machine
Rotary hook for high speed lockstitch sewing machine
Industrial sewing machine
Rotary hook for high speed lockstitch sewing machine2003-12-11 Issued
National Development and Reform Commission of the People's Republic of China Implemented on 2004-05-01
QB/T 25:1-2003
This standard is not equivalent to JIS B9072-1994 for vertical flow shuttle sewing machines according to the Japanese second industry standard J1SB072-1994.
The inspection rules of this standard are numbered according to the source of (T3/T282R-1987, CB/2829-1987), and the qualified quality rate level (AQL) and the unqualified quality rate level (RQL) are determined according to the relevant provisions of the industry. This standard is issued by the China Light Industry Federation.
This standard is issued by the China Sewing Equipment Planning and Standardization Center. The originators of this standard are: South China Sewing Equipment Technology Co., Ltd., Second Shareholding Zone Company, Jiangsu Periodic Machinery Co., Ltd., and Shanghai Ganggang Research Institute.
The main drafters of this standard are Wei Ruiji, Joint, Zhou Yu, etc., Mining Zhengjin, and Feiji City. This standard is issued immediately.|| tt||ITKAONIYKAa
QB/T2611—2003
Industrial sewing machine high speed flat-chain sewing machine rotary hook
This standard specifies the requirements for the calibration, test and supervision methods, inspection rules and markings of industrial sewing machines, high speed flat-chain sewing machines, and the packaging, transportation, and transportation standards of industrial sewing machines and high speed flat-chain sewing machines (hereinafter referred to as the "whole block"). 2 Normative references
The following clauses become the parent clauses of this standard through reference to this standard. All referenced documents with the H mark shall be subject to all subsequent amendments (excluding the error text in brackets) or versions not applicable to this standard. Standard. However, the versions of these documents that have been used in accordance with this standard are not applicable to the referenced documents without prior notice. GB/T2R281987 Reverse batch inspection counting sample reference sample table (applicable to coal batch inspection) GB/T12829-1987 State inspection counting sample procedure and reference table (applicable to production over-strength inspection) GB/T4342-1991 Microscopic test method for residual % 3 Product structure
3.1 Product form
This product has no external needle thread, and is equipped with a mold line internal variable according to the transfer, pay attention to the edge and cast line Interweaving to form a lock-like ruin 3.2 The main components and names of the school
Three main components and names (see Figure 1).
Inner press jade
Through the fold
Below the plate
Under the secretion
Outer rubber climbing
Guide end index point
3.3 Main dimensions of the construction
3.3.1 The main dimensions of the outer building (see medical 23
; the small size of the outer restoration hole is 7.94-200, type 8-9.09 Figure 2
3.3.2 The main dimensions of the inner building 1 (see Figure 3)
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QB/T 2611-2003
Zhongan comes
The unit is water
QB/T2611-2003
3.3.3 The main internal and external decoration (net 1)
4 Requirements
4. 1 Appearance quality
4.1.1 The line position should be free of sharpness,
1.65±0.10
4.1.2 The surface should be free of rust, decoration lines, scratches and other stains. 4.2 Design dimensions
4.2.1 The dimensions of the outer shell shall meet the requirements of 3.3.1. 4.2.2 The dimensions of the inner shell shall meet the requirements of 3.3.2. 4.2.3 The dimensions of the inner and outer shells shall meet the requirements of 3.3.1. 4.3 Running performance
4.3.1 The inner and outer shells shall fit well and the stitching shall be well handled. 4.3.2 After the shells are assembled, there shall be no noise when they rotate. 4.3.3 The lubrication mechanism shall rotate smoothly and the lubrication performance shall be good. 4.4 Sewing performance
The shrinkage performance of the shrinkage mechanism shall be good. There shall be no phenomenon of broken stitches, skipped stitches or floating threads caused by the quality of the sewing process. 4.5 Surface hardness
Wear resistance of each contact material: Use enterprise standard): a) External surface heat treatment hardness shall not be less than HV650: b) Internal surface heat treatment hardness shall not be less than HV650; c) Internal surface heat treatment hardness shall not be less than HV650; d) Surface heat treatment hardness of conductor plate shall not be less than HV6s0. 5 Test method
5.1 External test shall be carried out under light intensity of (± 0.1°C) and by daylight observation and sensory inspection. 5.2 Main dimensions of the swivel
52.1 The main dimensions of the outer swivel are as shown in Figure 2, and are inspected with special measuring tools. 5.2.2 The main dimensions of the inner swivel are as shown in Figure 3, and are inspected with measuring tools. 5.2.3 The main assembly dimensions of the inner and outer swivels are as shown in Figure 4, and are inspected with special measuring tools. 5.3 Running performance
Qn/T261*-2003
5.3.1 Fitting condition
Inspect the multi-mode of the inner swivel, and use special measuring tools to check the rotation after the inner swivel is engaged. 5.3.2 Other abnormal sounds
will be able to take pictures to measure the continuous state of this state, and the load is firm and the rotation is trnim ear secretion inspection. 5.3.3 Lubrication performance
If the lubrication oil is slightly released, after carrying out the abnormal sound inspection in 5.3.2, use 1 tester to check whether there is any lubrication. 5.4 Sewing performance
> Safety test on special sewing machine, according to the table "test items to reach the control table 1
Maximum warp speed
5.5 Surface hardness
Needle number
9014)
(the method of reducing cotton damage is more than that of our door B/4342-[99] standard. 6 Inspection rules
6.1 Factory conditions
After the traces are long
2 layers, half and
the product must be inspected and qualified by the manufacturing unit, and the product can be inspected and certified by the factory. 8.2 Inspection classification
Product inspection is divided into factory inspection and type inspection. 6.2.1 Factory inspection
The receiving party shall inspect the factory inspection items according to the standard specifications, 8. 2.2 Type inspection
When the following situations occur, a special type inspection should be carried out. When the new product is identified, or when the product needs to be adjusted: when the product structure and materials have changed significantly, which may affect the performance of the product: when the normal production cycle is full (the cycle is determined by the production method); when the production is resumed after a long period of suspension; when the inspection results are slightly different from those of the three type inspections; when the superior department proposes the requirement for further qualification inspection. 6.2.3 Product quality characteristics and inspection classification
The product quality and inspection classification are shown in Table 2. TKAONYKAa
Testing area
QB/T25:12003
Appearance
The line part is smooth and sharp
The rust is light, the scratches are not obvious
|External technical master
Internal main bodywwW.bzxz.Net
Main assembly scale card
Good life: light decline, membrane
Rotation performance
Installation quality
Water surface
Compared to A, dynamic urine belt
Can rotate the structure, the quality performance
Manufacturing performance is good, there are analysis
line, horizontal needle 、Floating medicine
According to the table, the value is 3HV650
Internal surface hardness value 2HV650
H waste table and visual position HV650
Wire board surface self-hardening net HV630
6.3 Factory inspection schedule
6.3.1 The sample of this product should be taken from the inspection bucket drive machine. 6. 3.2 Sampling plan and strict virtual
let the vehicle reach
~
test classification
now carry inspection a sample addition plan (see record 3): the first grade is reported in GBT28281987 4.6 according to Table 3
throwing force
unsuitable road classification
select vehicle single stable inspection items when
qualified water 4Q1.
151~-280
281-$00
501--1200
1201~3200
3201.-.10:000
Sample wooden station
Sample not small
External 1: The tow point is to turn the shuttle,
Note 2: A, R of class A, is calculated by joint connection, 2, R of class C is calculated by unjoined number: only regular inspection of anti-bar
6.3.3 Judgment of qualified or unqualified inspection batch QB/T 2611—2Q03
According to the results of the sample inspection, if the number of unqualified products of type A and type B in the sample is less than or equal to the corresponding number of qualified products (A), then the batch to be inspected shall be classified as qualified batch: if the number of unqualified products of type A and type B in the sample is less than or equal to the corresponding number of qualified products (R). The batch to be inspected shall not be qualified batch: 6.3.4 Treatment of unqualified products and batches after inspection Treatment of unqualified products and batches after inspection shall comply with the provisions of 4.12 of 0B/2828-1[98]. 6.4 Type inspection rules
6.4.1 Sample collection
The selected batch should be produced in this cycle, and it is a batch that has passed the factory inspection and is selected: and you must prove that the determined batch can represent the small cycle gas purification technical level.
6.4.2 Sampling plan
The sample deduction plan for type control inspection is shown in Table 4, Table 1
To other wood
Not produced and divided into plans
Not qualified for economic benefits (RQL)
The sample car is too small
Note: The sample is made of British
2, A, B categories, are counted as unqualified products, and C categories are counted as unqualified. 6.4.3 Type inspection qualified or unqualified According to the results of sample inspection, if the number of unqualified wood products of category A and B and the number of unqualified wood products of category C are less than or equal to the corresponding qualified number (4), then the batch shall be abandoned. 6.4.4 Treatment after type inspection Treatment after type inspection shall be in accordance with the provisions of 4.12[ in G/T 2829-1987. 7 Marking. 1 Product trademark. 7.2 Packaging C. Indicate the product name, number, market name, trade name, manufacturer, production station, standard number, etc. 8 Packaging, transportation, storage
8.1 Packaging
8.1. The product should be rust-proofed before packaging. 8.1.2 The product should be wrapped in paper or paper, and then packed in a special box. 8.1.3 After the product is packed, a product certificate should be attached. 8.2 Transportation
The product should be handled cleanly, carefully, and lightly. It is strictly forbidden to transport it with flammable, explosive, and low-energy items.
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QB/T 2611 -203
8.3 Storage
days.3.1 The product must be stored in a dry, ventilated, obstruction-proof place, free from flammable, dusty and corrosive substances, with a relative humidity not less than 8%.3.2 Under the conditions of transportation and storage, the product quality should be guaranteed within six months starting from the first three months after it is shipped out:
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