The craftsmanship level of the Shenzhen Injection Molding Factory is the key to the quality of its products. Any problems with the mold pressure and temperature equipment may cause product failures. Today we talk about a common product problem that is stuck in the mold. This problem is mainly caused by poor molding, insufficient injection, and incorrect mold design. If the product is pasted, the in-mold injection molding process cannot be normal. Today we will analyze the possible causes of this problem in detail.

(1) Mold problem

Mold problems are the main reason for the sticking. We need to pay attention if the plastic sticking into the mold is caused by insufficient injection, do not use the ejection mechanism; we can remove the undercut (sink), remove the gouge nicks and other scars to improve The smoothness of the mold surface attempts to solve this problem. The movement direction of the polishing mold surface should be consistent with the injection direction, and the effective ejection area of the slope should be increased, and the ejection position should be changed to check the operation of the ejection mechanism. If the problem cannot be solved effectively, check whether the mold is offset when opening the mold. If the part or mold design is not good, it needs to be redesigned.

(2) Injection molding problem:

The sticking caused by the injection problem is easier to solve. We can try to increase the release agent or improve the release agent, adjust the material supply, reduce the injection pressure, shorten the injection time, and reduce the total pressure time. In addition, the mold temperature can also cause the paste. We can reduce the mold temperature Increasing the injection cycle can easily overcome the abnormal injection cycle caused by the injection conditions.

(3) Material issues

Pasting caused by material problems is more common, but it is easier to handle. We only need to remove the material pollution, add lubricant to the material and try to dry the material to solve it.

In addition, injection molding equipment problems can also cause products to stick in the mold. Shenzhen injection molding plant needs to repair and maintain the equipment regularly. Generally, the ejector mechanism needs to be repaired. If the ejector stroke is insufficient, it needs to be lengthened. We also need to regularly check whether the templates are parallel. Other failures of machinery and equipment may also cause this process problem, so we need to repair the equipment failures in time to overcome the abnormal injection cycle caused by the equipment.