Temperature adjusting system for plastic mold

Abstract

The invention relates to the technical field of plastic mold temperature control, in particular to a temperature adjusting system for a plastic mold. The temperature adjusting system for the plastic mold comprises a mold body and a cooling water channel arranged in the mold body. The output end of the cooling water channel is connected with a water tank. The input end of the cooling water channel is communicated with a cold water pipe and a hot water pipe. A fluid switchover mechanism used for controlling cold water or hot water to flow into the cooling water channel is arranged among the cooling water channel, the cold water pipe and the hot water pipe. The cooling water channel is used for both heating and cooling and the requirement that a hot water channel is not arranged on the mold body is met, and the cold water pipe and the hot water pipe are switched to be communicated with the cooling water pipe through the fluid switchover mechanism, so that the mold body is heated or cooled through the cooling water channel; and the structure of the mold is simplified and cold water and hot water for cooling or heating the cooling water channel flow to the water tank.

Description

technical field [0001] The invention relates to the technical field of plastic mold temperature control, more specifically, it relates to a plastic mold temperature regulation system. Background technique [0002] The temperature of the plastic mold needs to be adjusted during work. Specifically, after the injection is completed, it needs to be cooled quickly to shorten the injection cycle. Before the injection, the mold needs to be preheated to improve the fluidity of the molding. In the mold design, a cooling water channel will be set to complete the cooling, but generally no heating water channel will be set, because the position of the water channel and the screws, ejector pins and other parts in the mold are likely to interfere and must be kept away from each other. It is not suitable to set up too many channels waterway. Therefore, the preheating problem of the mold is not easy to solve. [0003] Based on the above reasons, the forming effect is often unsatisfactory ...

AI Technical Summary

Problems solved by technology

In the mold design, cooling water channels are set up to complete the cooling, but generally no heating water channels are set up. This is because the position of the water channels and the screws, ejector pins and other parts in the mold are likely to interfere with each other and must be avoided. It is not suitable to open too many channels. the waterway

Therefore, the preheating problem of the mold is not easy to solve

[0003] Based on the above reasons, the forming effect is often unsatisfactory when the forming shape is complex, the wall thickness is small, and the plastic fluidity is poor. It is necessary to solve the problem of mold preheating through certain means, and it needs to be easy to control. timely switching

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