Local cooling device for plastic mould

Abstract

The invention belongs to the technical field of cooling equipment, and discloses a local cooling device for a plastic mould. The local cooling device comprises a water inlet tube, a water outlet tube and an annular water guide tube. The water guide tube is connected with a plurality of cooling branch tubes with the two ends closed. A water inlet and a water outlet communicating with the water guide tube are formed in the upper end of each cooling branch tube. Trapezoid grooves are formed in the inner walls of the two opposite sides of each cooling branch tube, wherein the width of the bottom of each groove is smaller than that of the top of each groove, a hollow waterproof plate is mounted on the two grooves of each cooling branch tube, and the thickness of the waterproof plate is the same as the width of the bottoms of the corresponding grooves. Rubber sealing strips are arranged at the two ends of each waterproof plate, and a spring is connected between the two sealing strips of each waterproof plate. The upper end surface of each sealing strip at the high end \ is in sliding connection with the inner surface of the top end of the corresponding cooling branch tube, each sealing strip on the upper portion is connected with a shifting block, and a through hole is formed in the bottom of each cooling branch tube and communicates with the inside of the cooling branch tube. By adoption of the local cooling device for the plastic mould, the problems that the cooling time is long, the cooling effect is poor, and the cooling efficiency is low in the prior art are solved.

Description

technical field [0001] The invention belongs to the field of cooling equipment, in particular to a local cooling device for plastic moulds. Background technique [0002] Plastic is a high molecular compound polymerized by addition polymerization or polycondensation reaction with monomer as raw material. It is commonly known as plastic or resin. It can freely change its composition and shape. , Colorants and other additives. Due to its good impact resistance, good insulation, low thermal conductivity, good transparency and wear resistance, and low processing cost, plastics are widely used. Plastic products are usually formed by molds, and plastic products will dissipate a lot of heat during the molding process, so it is necessary to cool the inside of the mold. [0003] Therefore, the patent publication number is the Chinese patent of CN104526917B, which provides a local cooling device inside a plastic mold, including a water inlet pipe, a water outlet pipe and a water guid...

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Problems solved by technology

[0005] The present invention intends to provide a local cooling device for plastic molds to solve the problems of long cooling time, poor cooling effect and low cooling efficiency in the prior art

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