As a kind of high-efficiency and high-precision production equipment, moulding plastic machine is widely used in manufacturing various plastic products. In the use of injection molding machines, the clamping unit is a particularly critical component, if the fault problems, will seriously affect the production efficiency and product quality. This article will focus on the plastic moulding plastic machine clamping unit of the possible failure problems and their treatment methods to help users better use and maintain the injection molding machine equipment.
I. Insufficient clamping force
Insufficient clamping force is the moulding plastic machine clamping part of one of the common failures that may appear, mainly manifested in the normal clamping, or clamping process shows loose, sliding, and other problems. This problem is generally caused by hydraulic system failure or improper adjustment. Processing method for clamping force for the failure of the problem, you can implement the following measures to deal with:
1. Check whether the hydraulic pump, valves, and other hydraulic equipment is functioning properly, the need to discharge the faulty parts and replace them;
2. Adjust the pressure, flow, speed, and other parameters of the hydraulic system to ensure that it matches the type, specification, and production process of the moulding injection machine.
3. Clean the hydraulic system of oil, impurities, etc., and regularly replace the hydraulic oil to keep the hydraulic system clean and stable.
II. Mould jamming or template damage
Mould stuck or template damage is another common failure of the moulding plastic machine clamping unit the tight performance for the mould and template can not be normal respectively or in the clamping process shows an obvious stagnation phenomenon.
This problem is generally due to poor lubrication, mould failure due to wear and tear or external forces or other factors. Treatment For the mould stuck or template damage failure problem, you can implement the following measures to deal with:
1. Check the matching situation of mould and template, switch the mould or replace the template if necessary;
2. Strengthen the maintenance of the mould to keep it clean, smooth and lubricated;
3. Check the wear and tear of the mould, and maintain and repair or replace it if necessary;
4. Check the looseness and tightness of the template and adjust it if necessary.
III. Mechanical failure
In addition to the hydraulic system and mould and other factors caused by the failure of the problem, the moulding plastic machine clamping part may also show mechanical failure, such as institutional parts wear, fracture, etc.. This problem is generally due to long-term use, often resulting in overload and other factors. Handling method For the failure problem of mechanical failure, the following measures can be implemented to deal with it:
1. Check the damage of mechanical parts, if necessary, strengthen the maintenance or replacement;
2. Strengthen the safety protection measures of the equipment to ensure the safety of operators;
3. Regular inspection and maintenance of equipment, and recorded, targeted to improve the maintenance of equipment and maintenance, improve the reliability of the equipment.
IV. Not locking the mould
1. Check whether the travelling switch in front of the safety gate is faulty and repair it.
2. Check the 24V5A power supply in the electric box and replace the power box in time.
3. Check whether the valve spool is stuck and clean it in time.
4. Check whether the I/O board has output and whether the solenoid valve is charged.
5. Check whether the hydraulic safety switch is pressed closed and whether the mechanical lock lever stopper is open.
V. Open and close the mould machine strangulation.
1. Check whether the lubricating oil pipe is disconnected, reconnect the oil pipe.
2. Increase the amount of lubricating oil, it is recommended that 50 mould oiling once or manually add enough lubricating oil.
3. Check whether the clamping force is too large, lower clamping force.
4. Check whether the amplifier plate current is disordered, readjust the current value.
5. Check whether the parallelism of the first two plates is too poor, adjust the parallelism.
VI. Wait a few seconds to open the mould
1. Check whether the screw damping is too large, adjust appropriately.
2. The centre hole of the damping screw is too big, replace the damping nail with a thin centre hole.
VII. Open-locking mould crawling
1. Check the wear and tear of the two-plate guide rail and Golen column, and replace it if necessary.
2. Adjust the opening and locking mould speed and pressure.
3. Exhaust pipeline and cylinder air.
VIII. Open the mould can not be opened
1. Increase the opening and locking mould speed and pressure.
2. Check whether the zero position of the clamping electronic scale changes, re-adjustment.
3. Check whether the anti-hinge.
IX. In automatic production, the mould will get tighter and tighter or looser and looser
Check whether the solenoid valve of mould adjusting has internal leakage, replace the solenoid valve or adjust.
X. When other actions work after clamping the mould, the full-automatic slowly opens the mould
Check the oil system board and mould opening valve for leakage, replace if necessary.
XI. Mould locking is not smooth
1. Check the air in the oil circuit, and exhaust.
2. Adjust the setting of A and B holes.
3. Check whether the setting of tilt-up and tilt-down of the enlarging plate is appropriate, and adjust it if necessary.
Summary
The moulding plastic machine clamping part of the faulty problem of the treatment methods includes checking the hydraulic system, molds and templates, etc. with the situation, strengthening the maintenance and repair of equipment. Through the above measures, we can effectively prevent and deal with the clamping unit of failure problem, improve the production efficiency and product quality of the moulding plastic machine equipment, and positively contribute to the enterprise’s progress and economic benefits.
