Automatic gate trimming device utilizing in-mold sliding block cutting mechanism in injection mold

Abstract

The invention relates to the field of cutting-off devices for gates or inner gates, in particular to an automatic gate trimming device utilizing an in-mold sliding block cutting mechanism in an injection mold. The injection mold comprises a mold cavity used for forming a product and a cavity used for forming the gate. The automatic gate trimming device comprises a linear driver and a sliding block which are arranged on the injection mold, wherein the linear driver is fixedly connected with the injection mold, the sliding block is in sliding connection with the injection mold, the sliding block is in transmission connection with an execution part of the linear driver, and a groove which communicates with the interior of the mold cavity and replaces the cavity is formed in the sliding block. According to the automatic gate trimming device utilizing the in-mold sliding block cutting mechanism in the injection mold, the groove in the sliding block is used for replacing the cavity used for forming the gate, the linear driver is used for driving the sliding block to move in the direction away from the mold cavity 2-5 seconds before mold opening, the sliding block can drive the gate to move together so as to be separated from a product, and the problem of how to automatically trim the residual gate in the product after mold opening is solved.

Description

technical field [0001] The invention relates to the field of a gate or ingate cutting device, in particular to a device for automatically trimming a gate in an injection mold by using an in-mold cutting slider mechanism. Background technique [0002] Such as figure 1 and 2 As shown, after the injection molding of the existing products, the glue joint and the product are condensed into one, requiring workers or equipment to separate the product from the glue joint, which means that there is an additional process of removing the glue joint on the production line, resulting in low productivity . [0003] In order to solve the above problems, Patent No. CN201620992223.5 discloses a cut-off structure for the gate of the injection mold, which has a built-in positioning mechanism and a slider. When the mold is opened, the movement of the movable mold relative to the fixed mold is transformed into the shearing of the slider The movement makes the injection mold open and the slide...

AI Technical Summary

Problems solved by technology

[0004] However, when the injection mold is opened, the product loses the fixation of the injection mold, and the product is only suspended on the moving mold by tension, so that the product is easily shaken when it is cut by the slider, resulting in insufficient or excessive shearing of the slider, or The product is cut by the slider, or the worker needs to trim the glue port twice

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