Extend Injection molding ejector pin service life tips includes selection of ejector material and design, optimize the use and maintain ejectors, etc.
In order to extend the service life of the ejector pin in the injection mold, you can refer to the following suggestions:
1. Extend Injection molding ejector pin service life tips: reasonable selection of ejector material and design
The ejector material needs to have high strength, wear resistance and corrosion resistance. For example, use wear-resistant, corrosion-resistant and high-temperature resistant steel, and perform quenching treatment to improve hardness and wear resistance. In addition, the design of the ejector should take into account its stress conditions. And avoid setting it in an inclined or curved position to reduce wear.
2. Extend Injection molding ejector pin service life tips: Optimize the use and maintenance of ejectors
- Regular inspection and lubrication: Check the wear of ejectors regularly and replace damaged ejectors in time. At the same time, keep the surface of the ejectors clean. Moreover, apply special lubricants regularly to reduce friction and wear.
- Reasonable setting of ejector stroke: The ejector stroke should be reasonably set according to the shape of the product. So to avoid excessive ejection or excessive ejector pressure. Thereby reducing the impact and wear on the ejector.
- Avoid frequent starting and stopping: During the production process, avoid frequent starting and stopping of the injection molding machine to reduce fatigue damage caused by thermal expansion and contraction of the ejector.
3. Extend Injection molding ejector pin service life tips: Improve mold design
- Optimize mold structure: In mold design, avoid designing complex geometric shapes or features with high aspect ratios, as these parts are prone to premature failure.
- Reasonably set the number and position of ejectors: According to the shape and size of the product, reasonably arrange the number and position of ejectors to ensure that the ejectors are evenly stressed and avoid local wear.
4. Use special lubricating grease
Choosing lubricating grease suitable for ejector pin working conditions, such as high temperature resistant, long-cycle lubrication perfluoroether grease, can significantly extend the service life of the ejector pin and reduce the problems of burning and oil leakage.
5. Scientifically adjust injection molding process parameters
- Reduce injection speed and pressure: Appropriately reduce injection speed and pressure to reduce impact and wear on ejector pins.
- Extend holding time: Appropriately extend holding time to allow plastic to fully cool and solidify, reducing wear on ejector pins.
6. Strengthen equipment maintenance and monitoring
- Maintain equipment regularly: Clean the oil and dust inside the injection molding machine regularly to ensure stable operation of the equipment.
- Monitor the operation status of the ejector: By monitoring the operation status of the ejector, abnormalities can be detected in time and repaired or replaced.
7. Reasonable setting of clamping force and hot runner parameters
Too high or too low clamping force will affect the life of the mold. Reasonable setting of clamping force and hot runner parameters can reduce the pressure and wear on the ejector pin.
Through the above methods, the service life of the ejector pin of the injection molding machine can be effectively extended, the production cost can be reduced, and the production efficiency can be improved.
Haichen injection molding machine
Haichen is one Chinese injection molding machine manufacturer. Our servo energy saving injection molding machines quality under CE safety standards certificated.
Haichen have rich experience of producing plastic products, with successfully cases for your reference. We can supply complete production line as per customer’s specific demand.
Consider the above. You can choose a suitable plastic injection molding machine and mold to ensure product’s quality and production efficiency.
