Plastic injection method of plastic toe caps for shoes

Abstract

The invention discloses a plastic injection method of plastic toe caps for shoes and relates to a production method of the plastic toe caps for the shoes. The position which is away from the edge of the plastic toe cap for the shoe by 4mm or more is taken as a plastic injection port for plastic injection molding in the method. As the selected plastic injection port is arranged in the middle part of a product or a mold cavity, high-temperature plastic injection materials entered from a plastic injection machine can rapidly and simultaneously achieve a lower side, a front wall and a top cover tothe periphery, the resistance is small, the flow rate is fast, the molding is fast, and the overall consistency of the products is good, thereby ensuring the service life of the products and being conductive to the labor protection of workers.

Description

technical field [0001] The invention relates to the technical field of shoemaking, in particular to a production method of plastic toe caps for shoes. Background technique [0002] In order to protect the safety of the toes, in the past, the front end of labor protection shoes had to use steel toe caps. Due to the high production cost of steel products, and the weight of steel products, it is tiring to wear on the feet. Therefore, existing plastic toe caps for shoes that use plastic materials instead of steel are applied to labor insurance shoes. [0003] Because the plastic toe cap for shoes is shaped and consists of a semicircular top cover, front wall and lower edge, the existing plastic toe cap for shoes is produced by an injection molding machine, and the two ends of the edge of the plastic toe cap for shoes are connected with injection molding ports. When the high-temperature injection material of the injection molding machine enters the mold cavity from the two injec...

AI Technical Summary

Problems solved by technology

When the high-temperature injection material of the injection molding machine enters the mold cavity from the two injection ports, it flows from both sides to the lower cavity, the cowl cavity, and finally to the top cover cavity. The entire mold cavity is biased, and the thickness of the molding edge determines that the gap at the edge of the mold cavity is very small. Therefore, the resistance of the injection material from entering the cavity is very large, and the high-temperature injection material cools down as it enters the depth of the cavity. Therefore, this method of injection molding from the edge is inefficient, the integrity of the product is poor, and the service life is short, which directly affects the labor protection effect of workers.

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