A hydraulic pressurized mold clamping device for flap closing molds

Abstract

A hydraulic pressurized mold clamping device for flap-closing molds, comprising a frame, a mold clamping mechanism and a pressurized locking mechanism; the pressurized locking mechanism includes a pressurized mechanism and a pressurized and locked mechanism for the movement of the pressurized mechanism. Constrained restraint mechanism, the pressurizing mechanism includes a pressurizing slider with a pressurizing cavity inside, and a small-diameter pressurizing cylinder and a large-diameter pressurizing cylinder are sequentially arranged in the pressurizing chamber along the mold clamping direction. A pressurizing piston is slidably fitted in the pressurizing cylinder, and a pressurizing piston is slidably fitted in the pressurizing cylinder. The clamping mechanism drives the pressurizing slider to move to a preset position, and pressurizes the pressurization through the restraining mechanism. The position of the slider is locked, the power output end of the clamping mechanism drives the pressing piston to move in the pressurizing cavity, and the pressurizing piston moves through the pressure transmission medium, which exerts a large clamping force on the flap-closing mold. The pressurizing mechanism of this scheme is driven by the mold clamping mechanism, and has a larger mold opening and closing stroke, which increases the mold opening space of the mold and facilitates the process operation.

Description

technical field [0001] The invention relates to the technical field of metal plastic processing, in particular to a hydraulic pressurization mold clamping device used for flap closing molds. Background technique [0002] At present, for parts with lateral groove structure, such as automobile wheel hubs, when plastic forming, two or more flap modules need to be used to form flap-type concave molds. When forming, the die block should be closed first, and after forming, the die block should be laterally parted, and then the product can be ejected and demolded. [0003] The requirements of this process for the mold are: 1) The closing and parting actions of the flap closure module should be fast to improve production efficiency; 2) When the flap closure module is closed, there should be enough clamping rigidity to prevent damage during the forming process. The lateral expansion force causes the mold to open outward, and defects such as oval and flash appear, which affect the ac...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the low mold rigidity caused by the small clamping force in the prior art, which affects the product precision, and consider the technical problem of reducing production costs, the present invention proposes a hydraulic pressurized mold clamping device for flap-closing molds

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