What are the key maintenance points for a powerful two-platen injection molding machine?

Powerful two-platen injection molding machines are widely used in the production of plastic products, especially for injection molding requiring high precision and high pressure. Due to the high temperature, high pressure, and complex mechanical system of its operating environment, regular maintenance is crucial to ensuring long-term stable operation, improving production efficiency, and extending the service life of the equipment.

1. Working Principle of the Powerful Two-Platen Injection Molding Machine

The powerful two-platen injection molding machine consists of two main platens: a fixed platen and a movable platen. They are closed by the machine's mechanical system and withstand the injection pressure. The injection molding machine melts plastic granules at high temperature and pressure and injects them into the mold. After cooling and molding, the plastic product is finally removed by opening the mold. Because the injection molding machine needs to withstand enormous mechanical pressure and high temperatures during operation, maintenance is particularly important.

2. Importance of Maintenance for the Powerful Two-Platen Injection Molding Machine

Maintenance of the powerful two-platen injection molding machine not only extends the machine's service life but also ensures stable production efficiency. Regular maintenance and cleaning can:

Reduce failure rate: Timely detection and elimination of potential problems reduce production downtime caused by equipment failures.

Improve production efficiency: The smooth operation of the equipment ensures the efficiency of the production process and avoids downtime caused by equipment problems.

Ensure product quality: Regular maintenance prevents wear and tear of mechanical parts, ensuring the accuracy of injection molding and thus improving product quality.

Reduce maintenance costs: Through regular inspection and maintenance, worn parts are replaced in a timely manner, avoiding large-scale repairs and reducing overall maintenance costs.

3. Key Points of Routine Maintenance for the Powerful Two-Platen Injection Molding Machine

The following are several key maintenance points for the powerful two-platen injection molding machine, covering all aspects from daily inspection to regular maintenance.

(1) Cleaning and Lubrication
Cleaning and lubrication are fundamental to injection molding machine maintenance, especially since the machine surface and internal components of the powerful two-platen injection molding machine are prone to accumulating plastic residue, dust, and dirt during operation.

Cleaning the mold and injection molding machine surface: Every day after production, clean the mold surface and the exterior of the injection molding machine with a cleaning agent and a soft cloth. Ensure that there are no residual plastic particles or dust to prevent them from entering the machine and affecting its operation. Regularly lubricate mechanical components: The mechanical components of the injection molding machine, such as the injection system, mold plates, and guide rails, usually require regular lubrication. Using suitable lubricating oil or grease can reduce friction, prevent wear of mechanical parts, and improve operating efficiency.

(2) Check the electrical system
The electrical system of the injection molding machine is one of the core components for its normal operation, so regular inspection of the electrical system's working status is particularly important.

Check electrical wiring and connectors: Regularly check cables, terminals, and electrical connectors to ensure there are no loose, damaged, or aged parts. Especially in high-temperature and high-pressure environments, the electrical system is prone to damage, affecting production safety.

Test the control panel and display: Ensure that all buttons, switches, and display panels function correctly. Regularly calibrate the control system to ensure that the equipment can accurately respond to operating instructions.

(3) Cooling system maintenance
The powerful double-platen injection molding machine generates a large amount of heat during operation, so its cooling system is particularly important. The normal operation of the cooling system can keep the temperature of the injection molding machine components within a safe range, preventing overheating and equipment failure.

Check cooling water flow: Ensure that the cooling water pipes are unobstructed, and regularly check whether the water flow is normal to avoid overheating due to poor water flow.

Regularly clean the cooling system: Scale or impurities may accumulate inside the cooling system, which will affect the cooling effect. Regularly clean the cooling pipes and water pump to maintain the efficient operation of the cooling system.

(4) Check the hydraulic system
The hydraulic system of the powerful double-platen injection molding machine is responsible for driving various movements of the injection molding machine, such as mold closing, injection, and demolding. Maintenance of the hydraulic system is crucial to ensuring the precise operation of the machine.

Check oil level and oil quality: Regularly check the oil level of the hydraulic oil to ensure that the hydraulic system has sufficient lubrication. The hydraulic oil should be kept clean and free of impurities. If the oil quality deteriorates, the hydraulic oil should be replaced promptly.

Clean the filter: The hydraulic system is usually equipped with a filter; regularly clean the filter to prevent impurities from affecting oil flow and causing a decrease in hydraulic system efficiency.

(5) Check the mold plates and injection system
The mold plates and injection system are among the most important parts of the powerful double-platen injection molding machine. Regularly checking these components can ensure product accuracy and quality.

Check mold closing: Ensure that the mold plates close smoothly and accurately. If the mold clamping force is uneven or jamming occurs, it may lead to quality problems in the injection molded products.

Check the injection system: Components such as the nozzle and injection barrel in the injection system should be checked regularly to ensure there are no blockages, leaks, or wear. The sealing and accuracy of the injector directly affect the quality of the plastic products.

(6) Regular calibration and inspection of equipment accuracy
High-force double-platen injection molding machines require good accuracy and stability, so regular calibration of the equipment is crucial.

Check equipment operating accuracy: Use precision instruments to regularly test the working accuracy of the injection molding machine, including mold closing accuracy and injection volume accuracy.

Calibrate the control system: Regularly calibrate the injection molding machine's control system to ensure that its response to parameters such as temperature, pressure, and speed is accurate and reliable.

4. Long-term maintenance suggestions for high-force double-platen injection molding machines

In addition to routine daily maintenance, high-force double-platen injection molding machines also require some more in-depth maintenance to ensure the long-term stability and performance of the equipment.

Regular replacement of key components: Key components such as hydraulic pumps, filters, and motors need to be replaced regularly to prevent aging and wear from affecting equipment performance.

Comprehensive inspection of equipment condition: Conduct a comprehensive equipment inspection annually, especially of the electrical system, hydraulic system, and mechanical components, to ensure that all aspects of the equipment are in optimal condition.

Establish maintenance records: Record each maintenance, repair, and servicing of the equipment to help track equipment usage and predict potential failures in advance.

Maintenance of high-force double-platen injection molding machines is crucial to ensuring the normal operation of the equipment. Through daily cleaning, regular inspection of electrical and hydraulic systems, lubrication of mechanical parts, and maintaining the cooling system in good working order, the service life of the equipment can be effectively extended, failures can be reduced, and production efficiency and product quality can be improved. Every maintenance task is related to the accuracy and stability of the equipment; therefore, paying attention to details and regular maintenance are fundamental to achieving long-term equipment operation.