Cold and hot loop alternate mold conformal cooling system

Abstract

The invention provides a cold and hot loop alternate mold conformal cooling system and belongs to the technical field of mold cooling. The cold and hot loop alternate mold conformal cooling system achieves the effects of keeping the temperature of a cooled mold core balanced and improving the cooling effect. The conformal cooling system comprises a cooling cavity formed in a mold core and a cooling core. An inflow cooling groove and a backflow cooling groove are spirally and alternately formed in the peripheral surface of the cooling core. The bottom of the cooling core is provided with a water inlet and a water outlet. The top end of the cooling core is provided with a communicating flow channel. The water inlet end of the inflow cooling groove is provided with a water inlet hole communicating with the water inlet. The water outlet end of the inflow cooling groove communicates with one end of the communicating flow channel. The water inlet end of the backflow cooling groove communicates with the other end of the communicating flow channel. The water outlet end of the backflow cooling groove is provided with a water outlet hole communicating with the water outlet. The cold and hotloop alternate mold conformal cooling system can make the temperature of the cooled mold core keep balanced, has the high cooling effect and can improve the production quality of plastic products.

Description

technical field [0001] The invention belongs to the technical field of mold cooling, and relates to a mold conformal cooling system with alternating cold and hot circuits. Background technique [0002] With the continuous improvement of the quality of life and the development of the plastics industry, plastic products are used in various fields of life and production, and the requirements for the shape of plastic products are continuously improved. The degree of warpage change in the shape of plastic products has become one of the important criteria for judging the quality. One of the main factors restricting the shape change of plastic products is the cooling of plastic molds. Effective cooling can reduce cooling time, thereby increasing production; moreover, uniform cooling can reduce residual stress caused by uneven heat conduction, thereby controlling product warpage to maintain product dimensional accuracy and stability, thereby improving product quality the quality o...

AI Technical Summary

Problems solved by technology

In the existing design, the cooling water channel of the current injection mold is generally set in the mold body where the core is installed or directly in the core. 1. The structure of longitudinal and vertical communication has a single distribution form and loose distribution of water channels, and for plastic molds with complex shapes, this method cannot achieve uniform cooling of each point of the mold, because the local cooling is easy to be insufficient or overcooled, making the product The residual stress is large, the physical properties are poor, and the deformation after the finished product is also large, which affects the quality of plastic parts

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