This standard specifies the product classification, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of roller ironing and flattening machines. This standard applies to roller ironing and flattening machines. QB/T 1835-1993 Roller ironing and flattening machines QB/T1835-1993 Standard download decompression password: www.bzxz.net

Light Industry Standard of the People's Republic of China
Roller Ironing and Leather Flattening Machine
Subject Content and Scope of Application
QB/T 1835---1993
This standard specifies the product classification, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of roller ironing and leather flattening machines. This standard is applicable to roller ironing and leather flattening machines. Cited standards
GB191 Pictorial marking for packaging, storage and transportation
GB/T511 Determination of mechanical impurities in petroleum products and additives - Gravimetric methodGB/T3766 General technical conditions for hydraulic systemsGB/T5226 General technical conditions for electrical equipment of machine toolsGB7612 Determination of noise power level of leather machineryQB/T842 General technical conditions for weighing instruments of light industrial machineryMethod for compiling product models of leather making machinery
QB1524
QB/T1588.1
Light industrial machinery
QB/T 1588. 4
3 Product classification
3.1. Models
Light industrial machinery
shall be compiled in accordance with the provisions of QB1524.
3.2 Specifications
General Technical Conditions for Welding Parts
General Technical Conditions for Painting
Expressed by the working width of the ironing roller, see Table 1. Specifications and Dimensions
1500(1600)
Note: The dimensions in brackets in the table are for reference. 3.3 Types are divided into three types according to the ironing roller heating method:
electric heating, electric oil heating, and steam heating. 3.4 Basic parameters are shown in Table 2.
Diameter of knife roller
Speed ​​of knife rollerWww.bzxZ.net
Feeding speed
Total power
Approved by the Ministry of Light Industry of the People's Republic of China on 1993-07-29 186
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Meet the design requirements
Implementation on 1994-03-01
Maximum temperature of ironing roller
Preheating time
4 Technical requirements
QB/T 1835-—1993
Continued Table 2
Products should meet the requirements of this standard and be manufactured in accordance with the drawings and technical documents approved in the prescribed procedures. 4.1
4.2Quality requirements for main and related parts
Cutter shaft body
The tolerance accuracy level of radial runout of the cutter shaft body shall not be lower than level 8; the surface roughness value of the support journal shall not exceed R.1.6μm; b.
The left and right spiral grooves shall be evenly indexed and the intersection shall be neat. c
4.3General parts requirements
4.3.1Castings, forgings and welded parts shall comply with the relevant provisions of QB/T842 and QB/T1588.1. 4.3.2Outsourced parts and purchased parts, etc., must be inspected and qualified or have a certificate of conformity before they can be used. 4.4Assembly quality requirements
4.4.1All parts and components must be inspected and qualified before they can be assembled. 4.4.2 The tolerance level of radial runout of the outer circle of the knife roller shall not be lower than Grade 8; the blade shall be firmly and reliably embedded in the spiral groove of the knife shaft body, and the chamfer of the outer circle shall be uniform, round and smooth. The surface of the ironing roller shall be corrosion-resistant, without defects such as bumps and scratches; the surface roughness value shall not exceed R.0.2um; the tolerance level of radial runout of the outer circle shall not be lower than Grade 8; the ironing roller body heated by oil or steam shall be subjected to water pressure test, and the test pressure shall be 1.5~2 times the maximum pressure of the heating medium inside the ironing roller, and the pressure shall be maintained for 30 minutes without water seepage. The tolerance level of parallelism of the two axis lines of the ironing roller and the pressure roller in the horizontal direction shall not be lower than Grade 8. 4.4.4
There shall be no oil leakage when the hydraulic system is working. 4.4.5
4.4.6 The hydraulic oil shall be clean, and the content of mechanical impurities shall not exceed 25mg/100mL. 4.4.7 The electrical system should be neatly wired, the joints should be firm, each component should have corresponding markings, and both ends of the wire should have the same number as the terminal. 4.4.8 The various moving mechanisms of the machine should be flexible and reliable, and the fasteners should not be loose. 4.5 Appearance quality
4.5.1 The appearance of the product should be neat and tidy, the colors should be harmonious, and the electrical, oil and gas pipelines should be arranged neatly and beautifully. 4.5.2 The quality of paint should comply with the relevant provisions of QB/T1588.4. 4.6 Machine performance
4.6.1 The ironing roller should be preheated for 60~75min. The ironing roller surface temperature should reach the maximum temperature index value specified in this standard. The temperature difference at various points on the ironing roller surface should not exceed the provisions of Table 3.
Specifications, mm
Temperature difference at various points on the surface of the ironing roller, (
1500(1600)
Note: The dimensions in brackets in the table are reference dimensions. 1800
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QB/T1835--1993
4.6.2 The whole machine runs smoothly, and each component moves accurately without abnormal noise. 4.6.3 When the machine runs idle for 60~75min, the temperature rise and maximum excitation of the bearings in various parts and the sliding bearings at both ends of the ironing roller shall not exceed the provisions of Table 4.
Rolling bearings
Sliding bearings
Sliding bearings at both ends of the ironing roller
4.6.4 The exposed moving parts of the machine should have safety protection devices. 35||tt ||4.6.5 The sound power level of the machine's idling noise shall not exceed the provisions of Table 5.
: 4.6.6 The performance of the electrical system shall comply with the provisions of GB/T522613.1, 13.2, and 13.4.1. Table 5
Specifications, mm
Sound power level limits, dB(A)
1500(1600)
Note: The dimensions in brackets in the table are for reference. 4.7 Working accuracy
The surface of the processed leather is bright and smooth, with clear grain. The leather is soft, without wrinkles or strains. 5 Test method
Maximum temperature
5.1 Test for 4.2a: Support the knife shaft on the V-shaped iron and position it between the shafts. The part to be tested rotates around and is tested at any cross section. 5.2 For the inspection of 4.2b and 4.4.3b: Evaluate with a surface roughness comparison sample or measure with a surface roughness tester. 5.3 For the inspection of 4.4.2a and 4.4.3c: Carry out on the machine to be measured, fix the dial indicator bracket, rotate the measured part one circle, and inspect at any cross section.
5.4 For the inspection of 4.4.3d: Inspect with a pressure test pump. 5.5 For the inspection of 4.4.4: Inspect with a feeler gauge adjusted with kraft paper. 5.6 For the inspection of 4.4.6: After the machine has been running idle for 1 hour, take 100mL of oil from the hydraulic system and measure according to GB/T511. 5.7 For the inspection of 4.6.1: Use a surface thermometer to measure directly on the surface. Inspect at any cross section within 100mm from both ends. 5.8 For 4.6 .3 Inspection: Direct measurement with a surface thermometer. 5.9 Inspection of Article 4.6.5: Inspection in accordance with the relevant provisions of GB7612. 5.10 Inspection of Article 4.6.6: Simulation test, inspection in accordance with the relevant provisions of Articles 13.1, 13.2, and 13.4.1 of GB/T5226. 5.11 The remaining articles shall be inspected by hand feel and self-test. 5.12 Any test method other than that specified in this standard may also be used if it can achieve the test purpose and obtain the same evaluation results; if there is a dispute, arbitration shall be conducted in accordance with the test method of this standard.
6 Inspection rules
6.1 Factory inspection
Before the machine leaves the factory, it shall be inspected by the quality inspection department of the manufacturer in accordance with the contents of Articles 4.4, 4.5, and 4.6 of this standard. After passing the inspection, the machine shall be issued with a certificate of conformity before leaving the factory.
6.2 Type inspection
6.2.1 Type inspection shall be carried out in any of the following circumstances. After formal production, if there are major changes in structure, materials, and processes that may affect product performance; a.
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When the product is resumed after two years of suspension;
When the product is transferred to another factory for trial production and appraisal;
QB/T1835—1993
When the national quality supervision and inspection department proposes a type inspection requirement. 6.2.2 The items of type inspection are all the contents specified in this standard. 6.2.3
Type inspection samples should be sampled and inspected by random sampling method, but not less than 1 unit. If one item of type inspection fails, double sampling should be carried out for inspection. If it still fails, the batch of products shall be deemed unqualified. 7 Marking, packaging, transportation, storage
7.1 Marking
7.1.1 Product nameplates, trademarks and various signs should be firmly positioned in the specified position. 7.1.2 The markings on the outside of the packaging box should be clear and eye-catching, including: product name, model and specifications;
manufacturer name and trademark;
manufacturing date (or number).
7.2 Packaging
Product packaging shall comply with the relevant provisions of QB/T842. The accompanying technical documents include: a.
Product certificate;
Product manual;
Packing list;
List of random accessories.
7.3 Transportation and storage
7.3.1 Be careful and gentle during transportation and loading and unloading, and it is strictly forbidden to turn it upside down. 7.3.2 The packaging, storage and transportation icons and signs should comply with the provisions of GB191. 7.3.3 Products should be stored in ventilated, dry warehouses without corrosive substances. Rain and dew protection measures should be taken for outdoor storage. Additional notes:
This standard was 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 Huzhou Leather Machinery Factory. The main drafters of this standard are Yang Zhihong and Shen Weirong. Hand-powered
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