This standard specifies the product classification, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of reciprocating leather polishing machines. This standard applies to reciprocating leather polishing machines for leather surface and leather lining in leather production with a working width of 210-600mm. QB/T 1832-1993 Reciprocating Leather Polishing Machine QB/T1832-1993 Standard download decompression password: www.bzxz.net

Light Industry Industry Standard of the People's Republic of China
Reciprocating leather grinding machine
1 Subject content and scope of application
QB/T1832-1993
This standard specifies the product classification, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of reciprocating leather grinding machines. This standard applies to reciprocating leather grinding machines with a working width of 210 to 600 mm for modifying the leather surface and leather lining in leather production. 2
Referenced standards
Packaging, storage and transportation pictorial symbols
GB 191
GB/T5226General technical conditions for electrical equipment of machine toolsGB7612Determination of sound power level of noise in leather machineryQB/T842General technical conditions for weighing instruments of light industrial machineryQB1524 Method for compiling product models of leather-making machineryQB/T1588.1General technical conditions for welded parts of light industrial machineryQB/T1588.2General technical conditions for cutting parts of light industrial machineryQB/T1588.3General technical conditions for assembly of light industrial machinery3 Product classification
3.1 Type and specification
3.1.1 Type: reciprocating type (non-passing leather). 3.1.2 Specification: divided into 210, 300, 400, 600 mm according to the working width of the feeding roll or feeding belt. 3.2 The model should comply with the provisions of QB1524.
3.3 Basic parameters
3.3.1 The working width shall comply with the provisions of Article 3.1.2 of this standard. 3.3.2
The following basic parameters shall comply with the provisions of the design and technical documents: Linear speed of leather grinding roller, Linear speed of feeding roller, Number of axial reciprocating times of leather grinding roller, Axial reciprocating stroke of leather grinding roller, Total power of motor, Net weight of whole machine, Overall dimensions, 4 Technical requirements
4.1 Basic requirements
Times/min;
lXbXh,mm.
4.1.1 Products shall comply with the requirements of this standard and be manufactured according to the drawings and technical documents approved by the prescribed procedures. 4.1.2 Forging, casting, welding, machining and assembly shall comply with the relevant provisions of QB/T842 and QB/T1588.1~1588.3. Approved by the Ministry of Light Industry of the People's Republic of China on July 29, 1993 and implemented on March 1, 1994
QB/T1832-1993
4.1.3 Matching parts, electrical components, purchased parts and outsourced parts must be inspected and qualified or have a certificate of conformity before they can be assembled. 4.2 Key parts Key items
4.2.1 The radial runout tolerance of the outer circle of the leather grinding roller is 0.03mm. 4.2.2 The leather grinding roller shall be subjected to dynamic balancing test, and the balancing accuracy level shall be G6.3. 4.2.3 The radial runout tolerance of the outer circle of the feeding roller is 0.03mm. 4.3 Assembly accuracy of the whole machine
4.3.1 Radial runout tolerance of the outer circle of the leather grinding is 0.05mm. 4.3.2 Radial runout tolerance of the outer circle of the feeding roller is 0.05mm. 4.3.3 Parallelism tolerance between the axis of the leather grinding roller and the feeding roller is shown in the table below. Specification
Parallelism tolerance
4.4 Performance of the whole machine
4.4.1 The machine should run smoothly without friction. 4.4.2 The leather feeding operation should have reliable safety protection devices, and the exposed rotating parts should have reliable anti-loosening and safety protection devices. 4.4.3 The insulation resistance of the electrical system should comply with the relevant provisions of GB/T522613.1. 4.4.4 The bearing temperature rise shall not exceed 35℃, and the maximum temperature shall not exceed 70℃. 4.4.5 The sound power level of the machine's idling noise shall not exceed 100dB (A). 4.5 Working accuracy
4.5.1 The surface of the front leather is flat and free of ripples after grinding. 4.5.2 The suede leather is fine and even after grinding.
4.6 Appearance quality
4.6.1 The words and symbols in various nameplates should be clear and durable, and the position should be eye-catching, correct, firm and reliable. 4.6.2 The surface of the electroplated parts should be smooth and shiny, and there should be no defects such as peeling and blistering. 4.6.3 The paint should not have defects such as paint, sagging, and shedding. 5 Test method
5.1 Inspection of Article 4.2.14.2.3 of this standard: The journals of the bearings of the leather grinding roller and the feeding roller are supported on the two-edged V-shaped frame respectively, and the shafts are positioned. During the rotation of the leather grinding roller and the feeding roller, use a dial indicator to measure three places according to the effective working width, and take the maximum value of the measured runout as the radial runout of the leather grinding roller and the feeding roller. 5.2 Inspection of Article 4.2.2 of this standard: Conduct on a dynamic balancing test machine. 5.3 Inspection of Articles 4.3.1 and 4.3.2 of this standard: Fix the dial indicator on the frame, respectively test the outer circle of the leather grinding roller and the feed roll, rotate the leather grinding roller and the feed roll for one circle, measure the leather grinding roller at three locations evenly divided according to the effective working width, and take the maximum value of the measured runout as the radial circular runout of the leather grinding roller; for the feed roll, measure the two ends within the effective working width, and take the maximum value of the measured runout as the radial circular runout of the feed roll. 5.4 Inspection according to Article 4.3.3 of this standard: As shown in the figure below, the V-shaped gauge is leveled and fixed on the leather grinding roller, and the dial indicator is fixed on the slide. The slide is moved to measure the two ends of the feed roller within the effective working width, and the readings are taken in two directions. The parallelism error between the leather grinding roller and the feed roller axis is: f (M--M,)?+(M,-M)2
Where: f parallelism error between the leather grinding roller and the feed roller axis, mmM-maximum reading of the vertical dial indicator, mm; M-minimum reading of the vertical dial indicator, mm
M-maximum reading of the horizontal dial indicator, mm; M-minimum reading of the horizontal dial indicator, mm. 174
(M:M2)
QB/T 1832
5.5 Article 4.4.3 of this standard shall be tested in accordance with Article 13.1 of GB/T5226. 5.6 Article 4.6 of this standard shall be tested by hand and visual inspection. 5.7 Idle running test
5.7.1 The continuous idle running time of the machine shall not be less than 2h. 5.7.2 Hand feeling and visual inspection in accordance with 4.4.1 and 4.4.2 of this standard. 5.7.3 Surface thermometer shall be used for inspection in 4.4.4 of this standard. 5.7.4 Rectangular hexahedron shall be used for surface inspection in accordance with GB7612 in 4.4.5 of this standard. 5.8 Hand feeling and visual inspection in 4.5 of this standard. 6 Inspection rules
Each machine shall be inspected and qualified by the quality inspection department of the manufacturer and issued with a certificate of conformity before it can leave the factory. Plate cleaning
V-shaped inspection fixture
Each machine shall be inspected before leaving the factory, and the inspection items shall be 4.3.4.4, 4.5 and 4.6 of this standard. 6.2
6.3 Type inspection shall be carried out in any of the following situations. a.
Trial type identification of new products or old products transferred to the factory for production; after formal production, if there are major changes in structure, materials, and processes that may affect product performance; during normal production, once a year;
When the product has been discontinued for more than 21 years and production is resumed; when there is a significant difference between the factory inspection results and the last type inspection results; when the national quality supervision agency proposes a type inspection requirement. 6.4
Type inspection items are all the contents specified in this standard. Type inspection prototypes should be randomly sampled from the production batch, 10%, but not less than 1 unit. 6.5
If one item of type inspection is unqualified, double sampling should be carried out for re-inspection. If it is still unqualified, the batch of products will be judged as unqualified. 6.6
Marking, packaging, transportation, storage
7.1 Marking
Product nameplates, trademarks and various signs should be in their respective designated positions and should be firm and flat. The product nameplate should include the following basic contents:7.1.1
Manufacturer name:
Product model and name;
Manufacturing date or production batch number;
Trademark;
Related parameters of the product.
7.1.2 The packaging, storage and transportation icons should comply with the provisions of GB191. 175
7.2 Packaging
QB/T1832-1993
7.2.1 Product packaging should comply with the relevant provisions of QB/T842.8. 7.2.2 Random documents should include "Instruction Manual", "Packing List", "Certificate of Qualification" and other documents, which should be packed in plastic bags and placed in appropriate positions in the box. www.bzxz.net
7.3 Transportation
The relevant regulations for railways, highways, waterways, etc. shall apply. 7.4 Storage
7.4.1 When the machine is stored, certain anti-rust measures shall be taken. 7.4.2 The storage place shall be ventilated, rainproof and free of corrosive substances. Additional remarks:
This standard is proposed by the Technical Equipment Department of the Ministry of Light Industry. This standard is under the jurisdiction of the National Fur Leather Machinery Standardization Center. This standard was drafted by the Yantai Leather Machinery Factory. The main drafters of this standard are Xu Jianping, Liu Shu and Sun Jing. From the date of implementation of this standard, the former Ministry of Light Industry standard SG271.1~1982 "GJ2E1-21A Leather Grinding Machine" shall be invalid. 176
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.