Low pressure casting machine operation guide
1. Except for the management personnel, those who are not familiar with the structure and performance of the machine are not allowed to start the machine at will.
2. During the manual and semi-automatic operation of the machine, in order to ensure safety, the mold must not be inspected, adjusted, or cleaned.
3. When adjusting the machine in the jog state, if all moving parts are moving, please be careful not to let the low pressure casting machine interfere and damage the machine.
4. If the machine has serious oil leakage, out-of-control operation and other abnormal phenomena (such as excessive noise, etc.), it should be stopped immediately to check and analyze the cause, and the operation can only be continued after troubleshooting, and the machine must not be produced in violation of regulations.
5. The grounding of each electrical equipment (such as electric control panel, furnace control panel, operating table, holding furnace, etc.) should be firm and reliable, and should be checked regularly.
6. When the machine is out of service for a long time, the movable template of the horizontal mold mechanism should be lowered to the lowest position to prevent accidents.
7. When checking the hydraulic system, please stop and wait for the pointer of the pressure gauge to return to zero before operating.
8. When checking the holding furnace, please open the exhaust valve and operate it when the pressure in the furnace is zero. Common mechanical failures of low-pressure casting machines are:
1. The hydraulic control system cannot rise.
For the mechanical failure of the hydraulic control system of the low-pressure casting machine, it is necessary to check whether the pressure controller is turned on without any problems. If it is found to be turned off, it is necessary to turn on the main power switch. Then check whether the oil motor, electrical control circuit, and thermal relay are activated. , check the structure of the bottom pressure casting machine, check the fastening condition of the pressure regulating plate inside the bottom pressure casting machine, the damage degree of the radio frequency joint, the oil leakage of the steam pressure valve, etc. If the above abnormal conditions are found, corresponding preventive measures should be taken .
2. The rising level of the pump pressure is too high.
If the suction side of the hydraulic pump sucks steam, please check the cause before overhauling. If the inlet filter screen is found to be clogged, it must be removed immediately. If the damage is serious, the relevant parts can be removed.
Sometimes, the noise of the hydraulic pump will increase after long-term operation, the reasons are as follows: low pressure casting machine
1. Axis movement of oil pump and motor;
2. The speed of the oil pump does not meet the standard;
3. Air pollution from operating oil;
2. Activate residual oil reduction;
4. There is steam in the sealing part of the pump shaft of the hydraulic pump.
