ZHEJIANG YITIAN PRECISION MACHINERY CO.,LTD
Operating procedure for safety technology of Punch
Stamping Safety management procedures
Mechanical Machine Characters (1985) 60A
Chapter I general provisions
The first article in order to strengthen the management of hedging pressure safety production, to ensure personal safety special procedures.
The second of these procedures. The design and manufacture of stamping machinery, safety devices and molds, the use and management of the design and manufacture units and use units of punching machinery shall be formulated and implemented in accordance with this procedure.
The third article applies to the equipment: mechanical Press, cold extrusion press, shearing machine, sheet bending press.
Chapter II Design and manufacture
The fourth safety technical requirements of stamping machinery shall be carried out in the light of the relevant provisions such as JB3350-83 "safety technical conditions of mechanical press".
The design, manufacture and acceptance of the fifth stamping machinery shall be in accordance with the following relevant standards:
(A) JB1829-76 "general technical conditions for forging machinery";
(B) JB1646-75 "Technical conditions for open presses";
(C) JB1279-81 "closed single, double-point press technical conditions";
(D) JB1295-77 "technical conditions for shearing machines";
(V) JB2936-81 "technical conditions of closed cold extrusion Press";
(Vi) JB2257-77 "technical conditions of sheet bending press";
(Vii) Other technical conditions relating to stamping machinery.
The safety technical requirements of the sixth machine:
(A) The exposed parts of the bed, slider, shield, safety facilities, etc., shall not have sharp edges;
(Ii) exposed flywheel, pulley, transmission belt, gear and other rotating parts, to be covered with protective cover;
(Iii) The equipment should be well grounded to prevent electric shock;
(Iv) The equipment should be suitable for local lighting, according to the actual situation can be designed mobile or fixed type; (V) Equipment, especially on medium and large equipment, generally need to set up a safety pillar to prevent the slider from slipping or mistakenly opening the equipment when the mold is adjusted.
The safety pillar should be interlocking with the main drive control of the equipment, and its strength should be able to support the weight of the slider and the upper die;
(F) The highest place of tall equipment shall be provided with a red indicator light and coated with yellow and black stripes in case the Skycar is mistakenly touched; (Vii) equipment with pneumatic friction clutch or inch active rigid clutch shall calibrate the actual emergency stop time.
The actual emergency stop time refers to the rotation of the curvature to the left and right, connected to the emergency stop button until the slider completely stopped time.
Safety Technical requirements for the seventh major component:
(I) Bed body: 1.
The strength and stiffness of the bed body must be checked and tested; 2. The tilting angle adjustment and fixing mechanism of the tilting bed body must be safe and reliable in case it falls.
Manual adjustment and fixing of positions are generally only allowed on the side of the device.
(Ii) sliding blocks: 1.
The adjustment part of the closed height shall be provided with a bidirectional limit limit device; 2.
There shall be no excessively prominent bolts, nuts or punching rods on the slider, and if necessary, a shield facility should be used.
(Iii) Clutch and brake: 1.
The conversion key (including the key handle) or sliding lock of a rigid clutch (including an inch rigid clutch) should be sufficient strength. 2.
The design of the belt brake equipped with the rigid clutch should be calculated according to the actual braking angle, and should be easy to adjust; 3.
Pneumatic friction clutch and brake should have a reliable interlocking device, to prevent the combined time is too long and cause the actual braking angle is too large, or mutual interference caused by friction plate wear; 4.
The braking torque caused by the slider and the upper die should be considered in the design of the brake equipped with the inch dynamic rigid clutch.
(Iv) Clutch control system: 1.
The installation position of the control cam of the rigid clutch shall ensure that the crankshaft stops at the dead spot at the time of the single stroke, and the tolerance is ±5°; 2.
Rigid clutch in a single stroke, must have a mechanical protection device to prevent continuous punching; 3.
When the inch moving clutch is in a single stroke, it must have a dual electrical interlocking protection device to prevent continuous punching; 4.
Pneumatic friction clutch in a single stroke, should ensure that the crankshaft stopped at the upper dead spot, its tolerance is +5°~-10°; 5. Pneumatic friction clutch in a single trip, must have measures to prevent continuous punching, such as the use of double-linked solenoid valve.
(V) Starter mechanism of clutch: 1. Handle the handle of the straight start push (or pull or press) force, the left hand operation, must not exceed 1. 5 kg force. The right hand shall not operate for more than 2 kg of force. Each handle must not exceed 1 when operating with a double handle.
5 kg force; 2.
The starting button should not be higher than the surface of the button box, the Emergency stop button must be mushroom type; 3.
The left, right and upper sides of the pedal starting on the pedal should be closed, and the space of the foot should be spacious, and the pedal surface should be anti-skid measures; 4. The pedal force of the pedal starting must not be too large, and the operation shall not exceed 4 kg force; the standing operation shall not exceed 5 kg of force.
The downward displacement of the pedal must not exceed 60 mm.
(Vi) Ladders, platforms and guardrails: 1.
The ladder should be locked with the main drive control, that is, when climbing the ladder, should be guaranteed to disconnect the main drive control; 2.
The pedal spacing of the ladder is recommended to be about 300 mm, the width of the ladder is recommended to be about 450 mm, and the minimum distance between the ladder and the bed surface is recommended to be 180 mm; 3.
After the height of the ladder exceeds 5 meters, the body should be set up at more than 3 meters in the ladder; 4. When the top height of the fuselage of the equipment exceeds 3 meters, the maintenance platform and guardrail are generally set up.
The plank on the platform should be anti-skateboard, the edge at least 40 mm, the height of the guardrail is recommended to be more than 1050 mm.
(Vii) All hydraulic systems, compressed air systems and electrical systems shall comply with the technical requirements of the relevant hydraulic components, pneumatic components and electrical components, and the design and manufacture of Zhongli containers shall be subject to the relevant regulations of the State.
Technical requirements for the eighth safety device: (A) The function of the safety device of stamping machinery has the following four types: 1. During the operation of the slider (or during the stroke under the slider), a part of the human body should not enter the danger zone.
Such as fixed fence type, moving fence type and other safety devices; 2. When the operator's hands are removed from the starting clutch's manipulation button or the handle, the slider should be able to stop the next stroke or exceed the dead spot before reaching into the danger zone.
Such as two-handed button type, double handle type and other safety devices; 3. During the stroke under the slider, the slider should be able to stop or exceed the next dead point before a part of the human body enters the danger zone.
Such as light type, inductive type, stereotype and other safety devices; 4.
During the stroke under the slider, it is possible to push out a certain part of the human body entering the danger zone, or to pull out the arm of the operator entering the danger zone, such as a push type, handle type and other safety devices.
(B) The technical requirements for the design and manufacture of safety devices shall be in accordance with the relevant provisions of the standards of the safety device structure of the press.
The safety technical requirements of the nineth mold:
(A) The mold structure shall meet the following safety technical requirements: 1.
The exposed edges shall be rounded corners; 2.
To make the mold move and installation is convenient; 3.
The end of the Guide column is not exposed; 4.
To have an adaptive pin, top device and unloading plate, etc.; 5.
As far as possible to avoid the operator's hands, fingers into the upper and lower mold space.
(B) The location of the installation of mechanized devices must be taken into account in the design of molds.
(C) The structure of the top device, the pusher and various discharge plates must be reliable.
(Iv) Each set of molds must have a registration card that includes the following items: 1.
The operation of using the mold; 2.
Mold use, installation, adjustment instructions; 3.
Description of the safety measures of the mold on the stamping equipment.
Chapter III Use and Management
The tenth stamping worker, through the safety technical training education, the examination qualified, obtains the safety Operation certificate, only allows the independent operation stamping equipment.
The tenth safety technical management personnel, equipment, mold designers, mold adjustment, installation workers to carry out safety technology and safety knowledge education, strict implementation of safety procedures.
The 12th Stamping workshop working conditions should meet industrial hygiene standards:
(I) Lighting should be appropriate, and the illumination of the recommended lighting should not be lower than the following values: The vertical illumination of the ground is 20 lux; The horizontal illumination of the height of the stamping Machine Workbench is 60 lux. (Ii) noise in the working environment should conform to national noise standards.
The 13th Enterprise's safety technology and equipment Department must participate in the installation of stamping equipment, overhaul after the commissioning of the acceptance work and regular inspection work, acceptance of qualified, can be put into production and use.
The 14th article to all kinds of stamping machinery to be numbered, registered, the establishment of a complete equipment file.
The 15th mold to a set of inspection, to the operator in the loading and unloading process hand does not enter the upper and lower mold space, the mold classification, divided into safety molds and unsafe molds, and add different signs. 16th under special circumstances, when not using unsafe molds, it is necessary to adopt appropriate and reliable safety measures, and write in the process card, the use of safety measures of the process, its production quota should be made according to the actual situation.
Ensure safe production.
The 17th process card should fill in the use of the mold safety degree and the prevention of personal accidents and other specific measures.