A return cooling device for injection mold

Abstract

The invention discloses a back-shaped cooling device for injection molds, which includes a cooling water tank, a cooling water tank is arranged on the front side of the cooling water tank, and a first back-shaped cooling groove is provided inside the movable mold and the fixed mold , and the inside of the movable mold and the fixed mold is provided with a second return-type cooling groove on one side close to the first return-type cooling groove, and the rear side of the top of the fixed mold is embedded in the bottom end of the movable mold and is fixedly connected with the first connecting pipe The lower side of one end of the cooling water tank is embedded with an adjusting seat, and the front side of the cooling water tank is embedded with a cooling fan, and the inside of the cooling water tank is provided with a filter near the lower side of the cooling fan, and the inside of the cooling water tank A fixing plate is fixedly connected to the lower side near the filter screen, and a sealing plug is embedded in the bottom end of the fixing plate. The invention is reasonable in structure, safe in use, can ensure the temperature stability of the product, small deformation, high strength and toughness, can eliminate thermal stress to the greatest extent, and improve the quality of the product.

Description

technical field [0001] The invention relates to the technical field of molds, in particular to a return cooling device for injection molds. Background technique [0002] Mold injection molding is to inject high-temperature molten plastic into a low-temperature mold through high-pressure injection, and then cool and solidify to obtain the desired product. First, from the perspective of production efficiency, 50% to 60% of the molding cycle % of the time is used to cool the product, therefore, the importance of the length of the cooling time is self-evident, at the same time, in order to ensure the temperature stability of the product, small deformation, high strength and toughness, maximum heat dissipation Therefore, it is necessary to improve the production efficiency of the production mold under the premise of ensuring the quality of the product. The cooling device can realize the cooling inside the mold cavity, but the working purpose of the cooling device is not only to c...

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Problems solved by technology

[0003] A Chinese patent discloses a mold cooling device (authorized announcement number CN102019652A), which effectively improves heat dissipation efficiency; a Chinese patent discloses a mold cooling device (authorized announcement number CN206966614U), which solves multiple cooling The problem of mutual interference between the inlet and outlet water pipes of the unit, but there is no first-type cooling tank and second-type cooling tank, which cannot improve the temperature stability of the product in the mold, and no cooling water tank and cooling water tank are installed. The cooling return water flowing out of the main water pipe does not have sufficient heat dissipation. There is no sealing plug, which cannot ensure the constant temperature of the cooling water in the cooling water tank. There is no adjustment seat, and the pressure value when the cooling water in the cooling water tank flows into the cooling water tank cannot be adjusted. No nozzle is installed. , cannot improve the heat dissipation rate of the cooling return water flowing out from the first return water branch pipe and the second return water branch pipe

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