Efficient cooling structure for mold

Abstract

The invention discloses an efficient cooling structure for a mold. The efficient cooling structure comprises an upper mold and a lower mold which are arranged oppositely, an injection molding cavity is formed between the upper mold and the lower mold, the lower mold is internally provided with a plurality of centre grooves, centres are mounted in the centre grooves, the centres are connected withdriving devices, the driving devices are used for driving the centres to move up and down relative to the lower mold and eject out a product in the injection molding cavity, each of the upper mold andthe lower mold is provided with a hollow cooling cavity, and the cooling cavities are connected with an input pipe and an output pipe; and the side surface of the lower mold is provided with an air nozzle mounting frame, an air nozzle is fixedly mounted on the air nozzle mounting frame, an air outlet of the air nozzle is slightly higher than the upper surface of the lower mold, and it is ensuredthat a cooling air flow sprayed out by the air nozzle can blow to the product in the injection molding cavity. The efficient cooling structure has the beneficial effects that the influence of waste heat in the injection molding product on the product during ejecting is effectively avoided, and the technical problem of leaving a mark on the surface of the product is solved.

Description

technical field [0001] The invention relates to the field of mold cooling structure improvement, in particular to an efficient cooling structure for molds. Background technique [0002] As one of the important molding methods in plastic processing, injection molding is widely used in various fields of industrial production. With the increasing application of plastic products, people have higher and higher requirements for the precision, surface quality and strength of plastic products. However, for some defects in the injection molding process, such as: weld marks, flow marks and other products, the appearance quality is poor. [0003] Today's injection molds generally cool the injection molding raw materials first and then perform the ejection operation during injection molding. In this way, sometimes the product will have ejection marks due to incomplete cooling during ejection, which will affect the appearance of the product in the slightest, and in severe cases. affect ...

AI Technical Summary

Problems solved by technology

With the increasingly widespread application of plastic products, people have higher and higher requirements for the precision, surface quality and strength of plastic products. However, for some defects in the injection molding process, such as: weld marks, flow marks and other products with poor appearance quality

[0003] Today's injection molds generally cool the injection molding raw materials first and then perform the ejection operation during injection molding. In this way, sometimes the product will have ejection marks due to incomplete cooling during ejection, which will affect the appearance of the product in the slightest, and in severe cases. affect product quality

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