JB/T 7886.3-1999 This standard is a revision of NJ 332-84 "Brushes for Sawtooth Cotton Gin and Sawtooth Stripping Machines", and the basic dimensions were adjusted during the revision. This standard specifies the types and basic dimensions, technical requirements, inspection rules, marking and packaging of brushes for sawtooth cotton gin and sawtooth stripping machines. This standard is applicable to brushes for sawtooth cotton gin and sawtooth stripping machines. This standard was first issued on October 28, 1984. JB/T 7886.3-1999 Sawtooth Cotton Gin and Sawtooth Stripping Machine Brushes JB/T7886.3-1999 Standard download decompression password: www.bzxz.net

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This standard is a revision of NJ332-84 "Brushes for Sawtooth Cotton Gin and Sawtooth Stripping Machine". Compared with NJ332-84, the main technical content of this standard has been changed as follows: the basic dimensions have been adjusted. This standard replaces NJ332-84 from the date of implementation. This standard is proposed and managed by the National Technical Committee for Agricultural Machinery Standardization. The responsible drafting unit of this standard is Handan Cotton Machinery Factory. The main drafters of this standard are Gao Li, Yang Guoqing and Li Futang. This standard was first issued on October 28, 1984. 9
Machinery Industry Standard of the People's Republic of China
Saw gin and saw linter-Bristle brush
Saw gin and saw linter-Bristle brushJB/T7886.3-1999
Replaces NJ332--84
This standard specifies the types and basic dimensions, technical requirements, inspection rules, marking and packaging of saw gin and saw linter-Bristle brush.
This standard applies to saw gin and saw linter-Bristle brush (hereinafter referred to as brush). 2
Type and basic dimensions
The types and basic dimensions of brushes shall comply with the provisions of Table 丨 and Figure 1. Table 1
2.2 Marking example
Number of hair roots
The brushes of sawtooth cotton gin and sawtooth velvet stripping machine are marked as: Brush L-JB/T7886.3-1999 (where L is the length of the brush) 3 Requirements
11 ± 0.5
The brushes shall comply with the requirements of this standard and be manufactured according to the drawings and technical documents approved by the prescribed procedures. 3.1
The brush wood strips must be made of machine wood or materials with mechanical and physical properties similar to machine wood. The brush wood strips shall not have defects such as rot, moths, live knots and dead wood. The moisture regain of wood shall not be greater than 13%.
Before the brush wood strips are threaded with leaves, shellac varnish must be applied. The specification of the ethylene line is ethylene 43D×6.
The joints of the ethylene line threaded with the brush shall not exceed the height of the hair, and there shall be no broken strands, and there shall be no wire joints on the back of the wood strips. When brushing, the hair in the hole must be full, and there must be no looseness or hair loss. The brush must be filled with shellac varnish and filled evenly. Factory inspection and acceptance rules
Products must be inspected and qualified by the manufacturer's inspection department before they can be shipped. Visual inspection of the appearance quality of the brush.
After the brush wood strips are flattened, check the total height and thickness of the brush wood strips. Approved by the State Machinery Industry Bureau on September 17, 1999 10
2060-01-01 implementation
11i ±0.5
JB/T7886.3-1999
4.4 The ordering unit can sample the product quality according to this standard. If the inspection results are unqualified, the number should be doubled for re-inspection. If there are still unqualified products, the product is unqualified, but the manufacturer is allowed to repair the batch of products and resubmit for re-inspection. If the product is not qualified after resubmission, the user is allowed to return it.
5 Marking and packaging
The brush strip should be printed with the manufacturer's mark.
5.2 The brush can be packed in simple packaging or wooden packaging boxes according to user requirements. The box should be covered with moisture-proof, insect-proof materials and insect-proof drugs. Each package should be accompanied by the manufacturer's quality inspection certificate. 5.3
The outer wall of the packaging box should be marked as follows:
a) Manufacturer's name;
b) Brush mark and name;
c) Packing box weight, kg;
d) Year and month of manufacture:
e) Destination station and receiving unit;
) Shipping station and shipping unit;
g) "Fireproof" and "Moisture-proof" words or marks. 5.5 Brushes should be stored in a dry and ventilated place. People's Republic of China
Mechanical Industry Standard
Sawtooth Cotton Gin, Sawtooth Peeling Machine
JB/T7886.1~7886.3-1999
Published and Distributed by the Mechanical Science Research Institute
Printed by the Mechanical Science Research Institute
(No. 2, Shouti South Road, Beijing
Format 880×1230
Postal Code 100044 ）
Printing sheet 1
Word count 24.000
First edition in December 1999
Printing number 1500
Second printing in December 1999
Price 10.00 yuan
991453
Mechanical Industry Standard Service Network: http://www.JB.ac.cn6698898
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