Injection mold

Abstract

The invention relates to the technical field of injection molds, in particular to an injection mold. The injection mold comprises a lower fixing base, a lower mold base, an upper mold base, an upper fixing base, an injection molding opening, a mold cavity, a female mold, an upper flow dividing groove, a positioning hole, a male mold, a positioning column, an ejection mechanism and a lower flow dividing groove, the lower mold base is fixedly installed at the upper end of the lower fixing base, the upper mold base is movably installed at the upper end of the lower mold base, the upper fixing base is fixedly installed at the upper end of the upper mold base, the injection molding opening is formed in the center of the outer surface of the upper end of the upper fixing base, the injection molding opening penetrates through and extends to the center of the outer surface of the lower end of the upper mold base, the mold cavity is formed in the outer surface of the lower end of the upper mold base and located around the injection molding opening, and the female mold is movably mounted at the lower end in the mold cavity. According to the injection mold, air between the female mold and the male mold can be effectively removed, the offset between the upper mold base and the lower mold base is reduced, the mold forming precision is guaranteed, the upper mold base can be prevented from carrying the mold during mold opening, and the risk that a model falls and is damaged is reduced.

Description

technical field [0001] The invention relates to the technical field of injection molds, in particular to an injection mold. Background technique [0002] Molds are various molds and tools used in industrial production for injection molding, blow molding, extrusion, die-casting or forging forming, smelting, stamping, stretching and other methods to obtain the required products. [0003] Existing patent (notification number: CN207509656U) a high-precision injection mold, including injection port, positioning ring, upper gland, high-precision main mold core, support column, bottom receiving plate, quick mold opening device, connecting plate, heat dissipation plate , ventilation column, exhaust machine, the bottom surface of the positioning ring and the upper surface of the upper gland are attached, the utility model is an injection mold, and a quick mold opening device is independently arranged in the structure, and the injection molding is positioned through the positioning ri...

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Problems solved by technology

[0004] In the process of realizing the present invention, the inventors have found that at least the following problems in the prior art have not been solved: for the injection mold of concave-convex mold, after the upper and lower mold bases are closed, there will be a gap between the concave mold and the convex mold. Air will remain, which will lead to a slight offset between the upper and lower mold bases during injection molding due to air pressure, which will reduce the accuracy of the mold. At the same time, when the mold is opened, the upper mold base is prone to mold banding, and the model may fall and be damaged. risk

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