Mold opening guide mechanism of large mold

Abstract

The invention relates to an auxiliary structure of a large mold, in particular to a mold opening guide mechanism of a large mold. The mold opening guide mechanism comprises a guide rod, a fixed blockand a sliding block, wherein the fixed block is fixedly connected with the guide rod, the sliding block is slidably connected with the guide rod, the guide rod is horizontally arranged, the fixed block is fixedly connected with a fixed mold plate in the mold, and the sliding block is fixedly connected with a movable mold plate in the mold. The fixed block and the sliding block are fixedly connected with the fixed mold plate and the movable mold plate correspondingly, the fixed block and the sliding block are connected with the guide rod, the guide rod can play a supporting connection role in the movable mold plate and the fixed mold plate, and when the movable mold plate and the fixed mold plate are staggered in the vertical direction due to gravity, the guide rod can play a supporting role in the movable mold plate and the fixed mold plate, so that the bending deformation degree of a guide pillar and a guide sleeve is reduced, therefore, the bearing capacity of the guide pillar and the guide sleeve is relieved, and the effect of reducing the failure rate of the injection mold is finally achieved.

Description

technical field [0001] The invention relates to an auxiliary structure of a large mold, in particular to a mold opening guide mechanism of a large mold. Background technique [0002] Injection mold is a commonly used molding part for plastic parts molding. Injection mold needs to be used with injection molding machine. Injection mold is generally placed horizontally. Injection mold includes multiple plates, such as fixed template, movable template, nozzle plate, front template, and rear template. , Bottom plate, top plate, etc., guide pillars and guide sleeves are usually used to guide and support the plates, which is convenient for the smooth opening and closing of each template. [0003] For small injection molds, the structural strength of guide posts and guide sleeves is completely sufficient, but for large injection molds, the weight of the injection mold is very heavy, and the weight of the front and rear templates usually reaches more than 10T. At this time, only the...

AI Technical Summary

Problems solved by technology

[0003] For small injection molds, the structural strength of guide posts and guide sleeves is completely sufficient, but for large injection molds, the weight of the injection mold is very heavy, and the weight of the front and rear templates usually reaches more than 10T. At this time, only the guide post and guide sleeve are used for support and guidance, and the size of the guide post and guide sleeve needs to be greatly increased to increase the strength of the guide post and guide sleeve. Otherwise, the guide post and guide sleeve are easily damaged by the pressure. If it is too large, it will be bent and deformed, and eventually fail, which will cause the mold to not be used normally

However, increasing the size of the guide post and guide bush is very high in terms of material cost and processing cost, and the service life is also very limited

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