Mold local cooling system based on low-temperature high-pressure gas

Abstract

The invention discloses a mold local cooling system based on low-temperature high-pressure gas. The system comprises an air source capable of providing compressed air, a filter connected with the airsource through a first air pie, a pressurizing pump connected with the filter through a second gas pipe, an exchange refrigeration assembly connected with the pressurizing pump through a third air pipe and capable of refrigerating the pressurized compressed air, a mold internally provided with a cooling air flow way, and a controller. One end of the cooling air flow way is connected with the exchange refrigeration assembly through a fourth air pipe, mold cooling is carried out, and an electromagnetic valve is arranged on the fourth air pipe, and the controller is connected with the pressurizing pump, the exchange refrigeration assembly and the electromagnetic valve for control. Through the above manner, according to the mold local cooling system based on the low-temperature high-pressure gas, the low-temperature high-pressure gas is used for serving as mold cooling media, the gas can reach the mold interior where a common cooling medium cannot arrive, local cooling is rapidly achieved,the injection molding period is shortened, and the pollution is reduced.

Description

technical field [0001] The invention relates to the technical field of mold cooling, in particular to a local mold cooling system based on low-temperature high-pressure gas. Background technique [0002] Existing injection molds use conventional "hot kerosene" and "circulating water" as the cooling medium. During use, due to the pollution of the cooling medium, the mold cooling pipeline is rusted and scaled, which reduces the heat exchange rate, thereby This leads to instability of the mold cooling system, which affects the production cycle and quality. In addition, during the use of the above-mentioned cooling medium, a closed circulation system is required, which is very easy to leak, causing equipment and environmental pollution. [0003] Furthermore, using the above media, the mold pipeline needs to occupy a large volume (the diameter of the conventional cooling pipeline is designed to be greater than 6.00MM), and the pipeline cannot reach the small parts of the mold, so...

AI Technical Summary

Problems solved by technology

[0002] Existing injection molds use conventional "hot kerosene" and "circulating water" as the cooling medium. During use, due to the pollution of the cooling medium, the mold cooling pipeline is rusted and scaled, which reduces the heat exchange rate, thereby The mold cooling system is unstable, which affects the production cycle and quality. In addition, the above-mentioned cooling medium requires a closed circulation system, which is easy to leak, causing equipment and environmental pollution.

[0003] Furthermore, using the above medium, the mold pipeline needs to occupy a large volume (the diameter of the conventional cooling pipeline is designed to be greater than 6.00MM), and the small parts of the mold cannot be reached by the pipeline, so that the temperature of the entire mold cannot be guaranteed to be consistent.

In addition, even if a very thin diameter cooling circulation water circuit is processed, due to the complexity of the circulation pipeline, the circulating water pressure of the conventional "mold temperature controller" is only 2~5Bar, which cannot meet the cooling requirements of the mold

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