GB 28244-2012Automatic metalforming machinery - Safety requirements (English PDF)

4.1 Supplier Responsibility

4.1.1 The supplier shall, paragraph 6 and Chapter 8 of the design and manufacture of the machine in accordance with Chapter 5.

4.1.2 The Supplier shall identify hazards that exist (see 5.1).

4.1.3 The Supplier shall eliminate the danger or hazard prevention methods (see 5.2).

4.1.4 The supplier shall provide installation, commissioning, maintenance, use, safety and maintenance documentation.

4.1.5 modification or remanufactured machinery or supplies related equipment modification or remanufactured provide documentation, including the modification or remanufactured New or revised technical paper machine installation, inspection, testing, maintenance, use, security protection.

4.1.6 Each new machine should provide instructions.

4.1.7 All new machines should repair instructions or manuals; reconstruction should provide documentation for reconstruction. Maintenance instructions or manuals should include at least The following information.

--- All control functions and positions;

--- Power and ram stroke;

--- Electrical, hydraulic, pneumatic and lubrication systems;

--- Maintenance period;

--- Safe introduction.

4.1.8 Each machine should have one or more suitable safety guards.

4.2 User responsibility

4.2.1 Users should check the machine and its auxiliary equipment provided by suppliers to ensure that it complies with Chapter 5, Chapter 7, Chapter 8 and Chapter

4.2.2 Users should ensure compliance with the following requirements. Danger

--- machine work exists identified (see 5.1);

--- Security should be able to eliminate, control or avoid the risk has been identified, use and maintenance shall comply with the provisions of Chapter 8;

--- Shall establish procedures for inspection and maintenance of the machine to ensure that components (such as starter interlock switches, etc.) and security guards in a safe Operating status;

--- Establish a working diary system, and shall comply with the provisions of the instruction manual.

4.2.3 The user should ensure commissioning and maintenance personnel, operators trained to train at least the following.

--- All control functions and positions;

--- Installation, removal and safe method of adjustment of the mold;

--- The location of all emergency stop devices;

--- All positions protective devices and protective equipment, installation and adjustment of methods and procedures for safe use;

--- The standards and related safety procedures;

--- The proper use of all safety guards;

--- Not allowed to change, remove, adjust safety devices to below the requirements of this standard;

5.1 Dangerous

5.1.1 Risk Assessment Shall GB/T 15706.1 and GB/T 16856.1 provisions risk assessment.

5.1.2 foreseeable misuse When the hazard identification for the foreseeable risk of misuse generated (including the use of the machine, adjustment, cleaning and maintenance) should be analyzed.

5.1.3 hazard class The machine should be considered endangered species see GB/T 15706.1-2007 Chapter 4.

5.2 Hazard control

5.2.1 eliminate dangerous The machine should be in line with the principle of inherently safe design, the design by eliminating the danger. Intrinsically safe design should be consistent with GB/T 15706.1 and GB/T 15706.2 requirements.

5.2.2 Security guards Can not be designed to eliminate the danger, security measures should be taken, and shall comply with the provisions of Chapter 8.

5.2.3 safe work practices Not suitable for safety guards to prevent danger, should develop safe work practices to prevent danger generation.

5.2.4 Warning When security measures can not effectively avoid the risk, the supplier shall not provide for added security (machine) safety signs member. use Households shall adopt safety procedures, staff training and other warning operators. Safety signs shall comply with the provisions of GB 2894 and GB 18209.2.

6 design and manufacturing

6.1 General Requirements

6.1.1 design and manufacturing Design and manufacture of the machine should meet the requirements of GB 17120.

6.1.2 against rotation Loose parts on the machine easy to use bolts, wedge connections and connections to other parts, should be taken reliably against rotation.

6.1.3 Installation of the spring The spring should be installed so that it will not fly at work, assembly and disassembly.

6.1.4 jigger With plate rod or other institutions disk driver should adopt reliable security measures.

6.1.5 heavier parts Parts for heavy lifting should be equipped with hangers or holes.

6.1.6 Security plug means When the operator needs to enter between the slider and the die holder for maintenance or adjustment, the circuit should be able to start the motor and interlock safety bolt Means.

6.1.7 Insurance agencies Insurance agencies on the machine should be reliable and sensitive. When the insurance agencies work, should be prevented from being damaged parts flying out of wounding, and the machine stops Stop running.

6.1.8 Lubrication With pressure lubrication should ensure proper lubrication. Lubrication points should sign.

6.1.9 Ergonomics Shall comply with the principles of ergonomic efficiency.

6.1.10 materials and other dangerous substances Materials and other substances should not be dangerous. Design, manufacture allowed use may cause material harm to human health, such as asbestos. Measures should be taken to prevent harm to human health to achieve the formation of gas concentration, which should be consistent with the design and manufacture GB/T 18569.1 of the relevant provisions.

6.1.11 Instructions Instructions should be consistent with GB/T 9969 and GB 17120 requirements.

6.2 Control System Control system should stop device.

6.3 Operating mode

6.3.1 Operating mode continuous operation When you start continuous operation mode, it should be able to complete a series of features machined parts and rework cycle, without human intervention plus replacement Workers parts.

6.3.2 Jog operation mode Jog mode of operation, can move the control drive, jog control when releasing the drive means should stop immediately. Jog control should be able to prevent Stop accidental operation. In jog mode, all upsetting shaping function should be operated by the operator to start. Jog mode should be forward and back Select the reverse mode.

6.4 Electrical Equipment

6.4.1 General requirements Electrical equipment should meet the requirements of GB 5226.1.

6.4.2 dangerous shock hazard and accident It should prevent shock hazard and accident hazards.

6.4.3 conductive cable Conductive cable should be connected reliably. Conductive area of the conductive cables and connections to the bearer of the current match and to ensure good electrical conductivity.

6.4.4 protective earthing circuit continuity Protective earthing circuit continuity should be consistent with GB 5226.1-2008 provisions in 18.2, according to inspection GB/T 24342 performed.

6.4.5 Insulation Automatic forging machines and electrical connections should be reliable insulation. Insulation resistance test shall comply with the provisions of

18.3 GB 5226.1-2008.

6.4.6 Pressure test Pressure test shall comply with the provisions of

18.4 GB 5226.1-2008.

6.4.7 Function Function Electrical equipment should meet the requirements of the machine. Its test shall comply with the provisions of GB 5226.1-2008 in 18.6.

6.4.8 Selector Switch Be a little action, a continuous mode of operation, etc. (job specification) selector switch.

6.5 Pneumatic and hydraulic systems

6.5.1 General requirements Pneumatic system should be consistent with GB/T 7932-2003 requirements in 4.3. Hydraulic system should be consistent with GB/T 3766-2001 in

6.5.2 stopped working Working pressure of the machine should be kept within a predetermined range, when the pressure is less than or greater than a predetermined pressure, the machine should be able to automatically stop jobs.

6.5.3 Pressure supply interruption It shall be provided at run time pressure supply disruptions and safely eliminate protections storage pressure.

6.5.4 filtration and separation It should provide filtration and separation measures.

6.5.5 Compatibility Liquid or gaseous working medium should be compatible with the device, so that the machine can be safe and reliable operation.

6.5.6 hydraulic, pneumatic and air storage reservoir Hydraulic, pneumatic and air storage reservoir should be consistent with the provisions of GB 150.1 ~ 150.4. It shall be provided to prevent the discharge pressure in the accumulator When the machine caused by unexpected action measures.

6.5.7 Operating Pressure Hydraulic, pneumatic system pressure should not exceed the rated maximum rated pressure of any system component.

6.6 power fluctuation or interruption Fluctuations in the external power supply and interruptions should.

--- Not lead to hazardous;

--- Immediately stop dangerous situation. When power is restored the machine should not start automatically.

6.7 Energy Storage Since the release of stored energy can not but lead to the risk of power interruptions, such as pneumatic or hydraulic pressure, gravity, resilient, balancer, flywheel. Measures should be interrupted connection or control the release of stored energy.

6.8 external interference When designing the control system and power supply system should ensure that external interference can not affect the normal operation of the machine.

6.9 failsafe control element (reliability) Electrical system is equipped with a programmable control system when a component failure the machine safety control should be normal and reliable work. When the system After the failure, when energized can not be restarted. Start the machine

6.10 The machine should be driven to the selected operating mode button [such as running (continuous), before the movement of the point after point trend] to activate. The machine should be installed Outside the hazardous area to control the station.

6.11.1 General requirements

6.11.1.1 Each machine should stop button, which should be able to stop all dangerous movement, and should be consistent with GB 16754 of category 0 downtime Provisions. 6.11.1.2 0 category stop function takes precedence over all other stop function.

6.11.1.3 stop circuit should give priority to start the loop.

6.11.1.4 Stop the restore function should not produce dangerous actions.

6.11.2 Emergency stop function

6.11.2.1 machine should have one or more emergency stop devices.

6.11.2.2 emergency stop function can be executed in all operating modes.

6.11.2.3 Once activated, the emergency stop function should always work. Stop function to recover only after manual reset.

6.11.2.4 emergency stop function can not be used in place of the security guards.

6.11.3 General Stop

6.11.3.1 steering control system should stop control.

6.11.3.2 stop function by hardware or procedures to complete, but also by PES system to complete.

6.12 Operator Control Station Operator Control Station should be placed within easy reach of the operator. When there is more than one operating station, at the same time, only the operator Preset operating station to work. When switching from one operator to another operator control station control station should not be dangerous. each An operation control stations shall be equipped with a separate stop button and the reset button (reset may not re-start the machine).

6.13 Manual operation control means

6.13.1 General requirements Manually operated control device shall comply with the following requirements.

--- In line with ergonomics;

--- Easy identification and marking;

--- Operator accessibility, its location should not be in contact or collision with moving parts;

--- Avoid operator misuse or normal operation at work.

6.13.2 stop control device Stop control device shall be installed in the operating personnel in its operating position it is easy to reach places, and do not need to go through the danger zone. stop Stop means should be red, clear identification, should be able to cut off the power source in an instant.

6.13.3 emergency stop control Should stop and the control device shall be clearly identified, should be installed in a readily accessible and not dangerous areas, the installation location for a smart, safe Full, easy to stop in an emergency. Emergency stop devices shall comply with the provisions of

10.7 GB 5226.1-2008.

6.13.4 Jog control device Jog control as to prevent accidental operation. When the jog control is released, power machine actuators should be interrupted.

6.13.5 operation control means Operation control means for actuating the machine continuous operation, th...