GB 27608-2011Ironworker - Safety requirements (English PDF)

4.1 General Safety Requirements

4.1.1 ironworker design, manufacture and this should be consistent with GB 17120 standards. Strength

4.1.2 Ironworkers main parts, rigidity and stability should meet the requirements, when used as specified service life can not be produced Health fracture or broken. Parts

4.1.3 ironworker on the run should not be loose, fall off, and should be taken against rotation.

4.1.4 Ironworkers should be equipped with a lighting device.

4.1.5 Without prejudice Ironworkers function, the body and other exposed parts of the design should not have hurt sharp corners, sharp edges, or Projections.

4.1.6 moving parts and related personnel could easily lead to injury (not including the operating area injury) site should take protective measures. Injuries can not be avoided When the damage, the application of safety signs warning, and shall comply with the provisions of GB 2894.

4.1.7 safety precautions should be taken to make due to the crack break, drop or damage caused by the release of mechanical energy down to a minimum.

4.1.8 manipulated by the handle, the handle should prevent accidental leaving the role of Ironworkers generating device malfunction.

4.1.9 specification selection switch should work with key. When the selector switch is selected in continuous stroke specification, the steering control shall have a Pre-action before you can work to achieve continuous travel.

4.1.10 electrical system shall comply with the provisions of GB 5226.1; redundancy should be used, to prevent the safety control element failure and hair Accidents stroke movement.

4.2 Stroke control requirements

4.2.1 The device shall prevent the slider mechanism or accidental operation.

4.2.2 Ironworkers should have a single stroke and continuous stroke function. Single stroke prevention should repeat function.

4.2.3 If single stroke agencies rely on spring, spring compression spring should be, and should be set on the rod guide hole or tube.

4.2.4 operating device must be installed correctly and firmly, not by mechanical rigidity foot operated lever mechanism.

4.2.5 The foot switch should protect the safety shield in its upper part and both sides of the foot switch should be flexible and reliable, the return spring should be used Spring.

4.3 Balancing system requirements

4.3.1 balancing system design should be able to prevent a component failure caused the shoe drop.

4.3.2 Ironworkers should slide and toolholder balancing device.

4.3.3 balancing device should have when connecting rods, piston rods, springs and other parts broken, loose, liquid gas supply interruption, loss of pressure, which do not normally occur In any stroke position can be reliably balanced live, not to work part down.

4.4 Pneumatic System Requirements

4.4.1 When the pressure disappears or gas supply interruption, due security measures.

4.4.2 pneumatic system should have means to prevent external contaminants from entering the system.

4.4.3 pneumatic components and pressure vessels shall comply with the relevant standards.

4.5 Hydraulic System requirements

4.5.1 Safety requirements for hydraulic systems should comply with GB/T 3766's.

4.5.2 hydraulic system shall not exceed the maximum rated working pressure of the system of any element specified safe working pressure.

4.5.3 When the hydraulic system of a sudden loss of pressure or interrupted, the system should have security measures.

4.6 Noise Noise Ironworkers shall comply with the provisions of GB 24389.

4.7 User's Manual The manufacturer shall provide product instruction guide ironworker installation, use and maintenance; the modified ironworker should provide The modified product manual. Instructions should be consistent with GB/T 9969 and GB 17120 requirements.

5 security guards

5.1 Types Security guards are the following types.

a) fixed guards;

b) interlocking guards;

c) adjustable guards (adaptation necessary, adjust the size of the opening);

d) Adjustable limiting device;

e) photoelectric protection device;

f) induction type safety device.

5.2 Technical Requirements

5.2.1 Safety devices should comply with GB/T 8196, GB/T 12265.3, GB/T 18831, GB 23821, GB 4584, GB 5092's Claim.

5.2.2 can stop hand (finger) from the surrounding guards or through the guard into the work the danger zone.

5.2.3 The security guard should not have squeezed the moving parts, touch and so on.

5.2.4 Safety devices should not interfere with observation, operation and maintenance.

5.2.5 Install safety guards should be firmly and correctly, license between it and the feed table and secure the opening distance should be consistent with the work of the danger zone Specified in Table 1. Table 1 millimeters Safety opening to work the danger zone from the maximum opening > 13 to 406 > 40 to 63 10 > 63 ~ 9013 > 90 ~ 14016 > 140 to 16020 > 160 ~ 20 025 > 200 ~ 32 032 > 320 ~ 40 040

5.2.6 use safety guards mesh structure, so that the operator should not work through the mesh into the danger zone, the mesh size should be less than 16mm × 16mm.

5.2.7 use safety guards fence structure, the operator can not work through the fence into the danger zone, fence spacing should not exceed 32mm.

5.2.8 Adjustable guardrail (see Figure 1) designed to be installed correctly, securely, and shall comply with the provisions of Table 2. Its maximum when the freely suspended Unrestricted imports 6mm, when the material is thicker than 6mm, limit import requirements fence movable portion of the motion to lift the movable portion should draw In contact with its own gravity into his material, because there is no gap between the finger can not be inserted into; fixed part should easily detachable for the operator.

5.2.9 adjustable limiting device shall prevent the operator's hands and fingers in the operating area, when the adjustable limiting device can not completely prevent access to the operating For the area, should be used to operate the warning symbol WARNING Do not put hands or fingers into the region and the use of hand tools. figure

1 Table 2 millimeters The following fixed portion A maximum opening To work the danger zone The minimum distance B Fixed portion Maximum opening C The movable portion of the opening D Minimum Maximum 2514020625 3215025632 4017032640 5020032650 Safety

6.1.1 Each station at least

5.1 should be used as a security guard.

6.1.2 The work of the working parts in hazardous areas should be coated with a warning color or marked with warning signs, and should meet the GB 2893, GB 2894 of the provisions.

6.2 Each station security guards

6.2.1 punching station Punching station security guard should be equipped with a 5.1, such as adjustable limiting device, and shall comply with the requirements of Chapter 5, the example See Appendix A A.1.

6.2.2 Profile shearing station

6.2.2.1 feed side of the safety devices should be equipped with the

5.1 one only, and shall comply with the requirements of Chapter 5, an example of Appendix A A.2.1.

6.2.2.2 cutting edge safety device should be equipped with a 5.1, and shall comply with the requirements of Chapter 5, the movable cover equipment such as the example See Appendix A A.2.2.

6.2.3 Flat shearing station

6.2.3.1 feed side of the safety devices should be equipped with a 5.1, and shall comply with the requirements of Chapter 5, such as shields, the example in Appendix A, A.3.1.

6.2.3.2 shearing knife on the side of safety devices should be equipped with a 5.1, and shall comply with the requirements of Chapter 5, when there are special circumstances to Find the required protective cover removed, that area should be coated with a warning color or warning signs, see Appendix A of example A.3.2.

6.2.3.3 cutting edge safety device should be equipped with a 5.1, and shall comply with the requirements of Chapter 5, it should be equipped with a movable cover, Example See Appendix A A.3.3.

6.2.4 die cutting station Die cutting station should be equipped with the

5.1 one of safety devices such as adjustable and shall comply with the requirements of Chapter 5, when opened allows the scissors Angle cut, Appendix A of Example A.4.