Concentric-square-shaped cooling device for injection mold

Abstract

The invention discloses a concentric-square-shaped cooling device for an injection mold. The concentric-square-shaped cooling device comprises a cooling water tank. A heat-dissipating water tank is arranged on the front side of the cooling water tank. First concentric-square-shaped cooling grooves are formed in a movable mold and a fixed mold correspondingly, and second concentric-square-shaped cooling grooves are formed in positions, close to one sides of the first concentric-square-shaped cooling grooves, of the interiors of the movable mold and the fixed mold. A first connecting pipe is fixedly connected to the position, embedded into the bottom end of the movable mold, of the rear side of the top end of the fixed mold. An adjusting seat is arranged on the lower side of one end of the heat-dissipating water tank in an embedded mode, and a heat-dissipating fan is mounted on the front side of the heat-dissipating water tank in an embedded mode. A filtering net is arranged at the position, close to the lower side of the heat-dissipating fan, of the interior of the heat-dissipating water tank, and a fixing plate is fixedly connected to the position, close to the lower side of the filtering net, of the interior of the heat-dissipating water tank. A sealing plug is arranged in the bottom end of the fixing plate in an embedded mode. The concentric-square-shaped cooling device is reasonable in structure and safe in using, the temperature stability, the small deformation quantity, the high strength and toughness and the maximum thermal stress elimination of a product can be ensured, and the quality of the product is improved.

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 i

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