A plastic mold for producing pet plastic cups and its injection molding process

Abstract

The invention discloses a plastic mold for producing PET plastic cups and its injection molding process, comprising a base plate and a mounting plate, the upper end of the base plate is fixedly connected with a lower shell, and an upper shell is arranged below the mounting plate. The upper end of the mounting plate is equipped with a hydraulic telescopic rod, the lower end of the hydraulic telescopic rod penetrates the mounting plate and is fixedly connected with the upper end of the upper shell, the upper end of the lower shell is embedded with a lower die body, and the upper end of the upper shell The lower end is embedded with an upper mold body that matches the lower mold body, and an injection port is vertically penetrated in the upper housing, and the lower end of the injection port communicates with the upper mold body; a thermal power generation mechanism, the thermal power generation mechanism includes The heat conduction plate arranged in the lower casing. During the use of the injection mold, the heat energy of the injection molding material is converted into electric energy, and then the water circulation system is driven to achieve rapid heat dissipation. At the same time, it can reduce the load of the hydraulic telescopic rod during the lifting process of the upper mold and increase the use of the hydraulic telescopic rod. life.

Description

technical field [0001] The invention relates to the field of plastic cup processing, in particular to a plastic mold for producing PET plastic cups and an injection molding process thereof. Background technique [0002] Plastic cups are commonly used props in people's lives. They are mass-produced through molds. Generally, the molds used to produce plastic cups are blow molds. Corresponding to the current production of plastic cup blow molds, there are the following aspects in the process of use. point question: [0003] 1. During the use of the blow mold, the cavity formed by the lower mold and the upper mold is generally filled with injection molding material, and then demolded after cooling. During the cooling process of the injection molding material, a large amount of Heat, which is fully utilized, resulting in a waste of resources; [0004] In the process of demoulding, the upper mold will be lifted by the hydraulic telescopic rod, and the upper mold is generally hea...

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Problems solved by technology

[0003] 1. During the use of the blow mold, the cavity formed by the lower mold and the upper mold is generally filled with injection molding material, and then demolded after cooling. During the cooling process of the injection molding material, a large amount of Heat, which is fully utilized, resulting in a waste of resources;

[0004] In the process of demoulding, the upper mold will be lifted by the hydraulic telescopic rod, and the upper mold is generally heavy. During the lifting process of the upper mold by the hydraulic telescopic rod, the work done is also relatively large. During long-term use , the loss of the hydraulic telescopic rod is also large

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