This standard specifies the product classification, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of the side beating machine. This standard applies to the side beating machine. QB/T 2339-1997 Side beating machine QB/T2339-1997 Standard download decompression password: www.bzxz.net

QB/T2339-1997
This standard is formulated by combining the opinions of domestic manufacturers of side-splitting machines and a large number of users, and referring to some relevant domestic and foreign technical data.
This standard is proposed by the Quality Standards Department of China Light Industry Association. This standard is under the jurisdiction of the National Fur Leather Machinery Standardization Center. The drafting unit of this standard: Yancheng Shuguang Machinery Factory. The main drafters of this standard: Sun Zhongqin, Luo Shuhe, Wang Fuguang. 266
1 Scope
Light Industry Industry Standard of the People's Republic of China
Splitting Machine for Side-splitting
QB/T2339-—1997
This standard specifies the product classification, technical requirements, test methods, inspection rules and markings, packaging, transportation and storage of side-splitting machines for side-splitting. This standard applies to side-splitting machines for side-splitting.
Cited standards
The clauses contained in the following standards constitute the clauses of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and the parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T1958--1980 Shape and position tolerance detection regulations GB/T5226--1985 General technical conditions for machine tool electrical equipment GB76121987 Determination of sound power level of leather machinery noise GB/T13384-1992 General technical conditions for packaging of electromechanical products QB1525-~1992 Method for compiling product models of shoemaking machinery QB/T1588.4-1993 General technical conditions for painting of light industrial machinery 3 Product classification
3.1 Type
Electric heating, mechanical leveling.
3.2 Model
The model should comply with the provisions of QB1525.
3.3 Basic parameters
Basic parameters are shown in Table 1.
Table 1 Basic parameters
Number of times the waist is inserted flat
Number of times the toe is flat
Number of times the upper foot is flat
Linear speed of the pressure wheel
Heating temperature
Approved by China Light Industry General Association on December 4, 1997
Times/min
Times/min
Times/min
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8000~8400
8000~8400
4500~5000
130~140
90～100
1998-08-01 implementation
4 Technical requirements
QB/T2339--1997
4.1 The foot leveling machine shall meet the requirements of this standard and be manufactured according to the drawings and technical documents approved by the prescribed procedures. 4.2 Manufacturing quality
4.2.1 Castings
a) The surface shall be flat, and the gate, riser and various molding sand and adhesives must be removed; b) There shall be no defects such as cracks, shrinkage, cold shut, pores and slag inclusions; c) Casting defects can be repaired in accordance with relevant regulations without affecting the use. 4.2.2 Welded parts
The weld should be smooth and reliable, and the welding slag should be removed. Other technical requirements should comply with the requirements of the drawings. 4.2.3 Surface treated parts
a) The surface treatment shall not have defects such as cracks and burns; b) The oxide film on the treated surface shall be uniform in color and free of spots; c) The surface of the electroplated parts shall be uniform in color and smooth, and shall not have defects such as spots, bubbles, exposed bottom, scratches and rust. 4.2.4 Painted parts
Painted parts shall comply with the relevant provisions of QB/T1588.4. 4.3 Quality of main parts
4.3.1 Camshaft
a) The surface roughness Ra value of the bearing journal shall not exceed 0.8um; b) The radial runout tolerance grade of the bearing journals at both ends to the common axis of the camshaft is grade 9. 4.3.2 Camshaft seat
a) The surface roughness Ra value of the joint with the bearing is not greater than 1.6μm; b) The coaxiality tolerance grade of the joint with the bearing to the common axis is 9.4.3.3 Flywheel hub
The circular runout tolerance of the common axis of the inner hole at both ends is not greater than 0.1mm. 4.4 Assembly accuracy
4.4.1 All parts can be assembled after passing the inspection. Purchased parts and outsourced parts should be assembled with a certificate of conformity. 4.4.2 The parallelism tolerance grade of the two flywheel plates is 9. 4.4.3 Static balance test should be performed before assembling the flywheel until it is balanced. 4.4.4 The radial circular runout tolerance of the camshaft should not be less than 9. 4.5 Performance of the whole machinewwW.bzxz.Net
The whole machine should run smoothly, be easy and flexible to operate, and have no abnormal phenomena. The safety protection device is effective and reliable.
The electrical system is safe and reliable, and the insulation performance is in accordance with the provisions of 13.1 of GB/T5226-1985. After the machine is started and reaches thermal equilibrium, the temperature rise of the rolling bearing shall not exceed 40C, and the maximum working temperature shall not be higher than 70C. 4.5.4
When the machine is operating normally, the noise sound power level shall not exceed 100dB (A) 4.5.5#
4.5.6 According to different shoe materials, different leveling strokes and different grades of temperature can be flexibly adjusted. 4.6 Appearance quality
4.6.1 The appearance should be neat and the color should be harmonious.
4.6.2 The electrical wiring should be arranged neatly, the joints should be firm, and the colors of the buttons and indicator lights should be in accordance with the relevant provisions of 8.2.3 and 8.2.4 of GB/T5226-1985.
4.7 Work quality
After the upper foot is leveled and trimmed, it should meet the requirements of shoemaking technology. 268
5 Test method
5.1 Running test
QB/T 2339—1997
5.1.1 No-load test shall be no less than 1h and shall comply with the provisions of 4.5.1 and 4.5.2. 5.1.2 Load test
Each product must be tested on no less than 5 pairs of shoes. a) The test material is the stretched upper;
b) The load test shall comply with the provisions of 4.5.6 and 4.7. 5.2 Number of times the waist and toe of the shoe are flat First, use a tachometer to measure the motor speed, and then use formula (1) to calculate. ni=nE,
wherein: ni
Number of times the waist and toe of the shoe are flattened, times/min; motor speed, r/min;
Number of cam surfaces for the waist and toe of the shoe are flattened, E, =6. 5.3 Number of times the upper foot is flattened, first use a tachometer to measure the motor speed, and then use formula (2) to calculate. nz niE2
Number of times the upper foot is flattened, times/min;
wherein: n2
Motor speed, r/min;
Belt speed ratio, i=0.8;
E2—Number of cam surfaces for the upper foot, E2—4. 5.4 Linear speed of the pressure wheel First use a tachometer to measure the speed of the pressure wheel, and then calculate the linear speed of the pressure wheel according to formula (3). V=nD,r
Wherein, V-throwing wheel linear speed, m/min, n--motor speed, r/min;
D,-throwing wheel diameter, m.
5.5 The heating temperature is measured by a thermometer.
5.6 For the surface roughness of 4.3, use a roughness sample for comparison or use a roughness tester for testing. 5.7 For the geometric tolerances in 4.3, 4.4.2, and 4.4.4, test them according to the relevant provisions of GB/T1958. (1)
(2)
(3)
5.8 For the test of 4.4.3, support the flywheel on a static balance frame, rotate the flywheel, and check the counterweight so that the flywheel can achieve balance at any position.
5.9 For the inspection of 4.5.3 and 4.6.2, the relevant inspection methods in Chapter 8 and Chapter 13 of GB/T5226-1985 shall be followed. 5.10 For the inspection of 4.5.4, after the machine is started and reaches thermal equilibrium, use a surface thermometer to measure at the bearing. 5.11 For the inspection of 4.5.5, the relevant provisions of GB7612 shall be followed. 5.12 For the inspection of 4.2.4, the relevant methods of QB/T1588.4 shall be followed. 5.13 For the other items, visual inspection and hand feel shall be used for inspection. 6 Inspection Rules
6.1 Factory Inspection
6.1.1 Products shall be inspected and qualified by the quality inspection department of the manufacturer, and the certificate of conformity shall be issued before they can be shipped. 6.1.2 Each product shall be subject to factory inspection. The inspection items shall be 4.2.4, 4.4.2, 4.5 and 4.6 of this standard. The inspection results shall comply with the requirements of this standard.
6.2'Type inspection
6.2.1 Type inspection should be carried out in any of the following situations. a) After formal production, if there are major changes in structure, materials, and processes that may affect product performance; 269
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QB/T 2339-1997
b) When continuous production is carried out every two years or the cumulative output reaches more than 100 units; c) When the product is discontinued for more than three years and then resumed; d) When the factory inspection results are significantly different from the last type inspection; e) When the national quality supervision agency proposes a type inspection requirement. 6.2.2 Type inspection prototypes should be randomly sampled from 10% of the batch of qualified products, but not less than 2 units. 6.2.3 Type inspection items are all technical requirements specified in this standard. 6.2.4 If the type inspection fails, double sampling should be carried out for inspection. If it still fails, the batch of products will be judged as unqualified. Marking, packaging, transportation, storage
7.1 Marking
7.1.1 Each product should have a metal nameplate fixed in a conspicuous position, with the following contents: a) manufacturer name and trademark;
b) product name and model and main technical parameters; c) manufacturing date and number.
7.1.2 After the product is packaged, the standard number should be marked in a conspicuous position. 7.1.3 The product should have safety and operation signs at relevant locations. 7.2 Product packaging should comply with the relevant provisions of GB/T13384. 7.3 Handle the product with care during transportation, and do not shake or collide it. Prevent it from violent movement and rain. 7.4 The product should be stored in a ventilated, dry warehouse free of corrosive substances. 270
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