In the production of PP plastic pepper balls by blow molding process, apart from batch blowing, there will also be dislocation at the clamping position. The dislocation phenomenon not only affects the appearance of PP plastic pepper balls, but also affects the accuracy of PP plastic pepper balls, resulting in a serious waste of PP plastic pepper balls. In fact, to solve the problem of PP plastic pepper balls, it is necessary to start with the mold of PP plastic pepper balls. The following is a brief introduction to the improvement method of the mold of PP plastic pepper balls.

PP plastic pepper ball mold steel for blow molding must be made of heat-treated mold steel, because the mold without heat treatment is easily deformed due to blow molding pressure, and it is also noted that the mold is a heating device for self-heating during blow molding, and the guide post and guide post hole of the mold will expand due to the heating of the mold, which is the direct cause of mold dislocation. The guide post of the upper die and the lower die of the mold is not stuck, and the gap between the guide post and the guide post hole is made very large, which will easily lead to mistakes in natural production. The improvement method is to buy the special guide post and guide sleeve of the blow mold with good quality, so that the phenomenon of dislocation of the plastic hollow ball mold will not happen.