Safety technical operating rules for four-column press

1, the operator should be in good mental state, labor protection supplies fully dressed, in line with the "three tight" requirements, the operation of the press personnel to be familiar with the mechanical properties of the equipment, the working principle, master the performance of general metal materials, electrical, hydraulic principles and other related knowledge and skills, without permission, no one is allowed to start, operate the press. Full-time personnel should strictly implement the "finger dictation" safety confirmation when operating. The password should be unified and coordinated to ensure the safety of personnel and equipment.

3, before starting the press, the operator should carefully check whether the press motor, oil pump operation is normal, limit stroke switch, control button and other protection devices are intact, sensitive and reliable; Wipe the dust and dirt of the column and the external leakage piston rod, and spray lubricating oil.

After the inspection is completed to confirm that it is intact, the no-load press is started, the empty car test is carried out, and the various departments are carefully checked whether they are flexible and reliable, whether the lubrication is good, and whether there is a blockage phenomenon. If there is an abnormal stop immediately, find out the cause and deal with it in time

5, only in the shutdown closed state, can install, adjust the pressing mold, check whether the mold positioning is correct, fixed is firm and reliable; And according to the workpiece pressing requirements, adjust the working pressure, stroke range and other parameters

6. When setting the limit device (stroke switch), it must be ensured that the fast falling position of the upper module maintains at least 15 gal distance from the pressed workpiece, and then slowly falls to complete the pressing. In order to avoid uneven force, it is necessary to ensure that there is a good contact plane between the upper and lower modules and the workpiece

7, During the pressing process, it is forbidden to adjust or overhaul the mold and workpiece, and it is strictly prohibited to press the workpiece

Check the pressing situation and take or place the workpiece only after the equipment has stopped pressing operation and the operator has given accurate instructions

8. It is strictly prohibited to use overload, overload (maximum load 2000KN) and over-stroke (maximum stroke of the slider 750mm). When the machine has serious oil leakage, loud noise, unstable and reliable action, and vibration, it should be shut down immediately, find out the cause and eliminate the fault, and it is strictly prohibited to use with illness

9, after the end of the work, the upper slider should be dropped, and closed with the mold, and then cut off the power. In the shutdown state, wipe the column, maintain and maintain the equipment, and clean the equipment around the health