Delayed core-pulling structure

Abstract

The invention provides a delayed core pulling structure which comprises an inclined guide column, a pressing block, a sliding seat, a side mold core and a sliding block, wherein the side mold core is installed at the front end of the sliding seat; the sliding block is movably connected to the interior of the sliding seat; a movable insert which is movably connected is arranged in the side mold core; a locking block is fixedly arranged at the front end of the sliding block and slidably connected with the movable insert; the sliding block slides in the sliding seat in the X-axis direction; the sliding seat is provided with a first inclined guide hole matched with the inclined guide column; the first inclined guide hole is of a long hole structure; the sliding block is provided with a second inclined guide hole communicated with the first inclined guide hole; and the diameter of the second inclined guide hole is matched with the diameter of the inclined guide column in dimension. A double-sliding-block structural form is adopted for carrying out demolding and core pulling on an inverted buckle, the sliding block is driven to move in the direction away from a product along with movement of the inclined guide column, the sliding seat is kept still, and the movable insert slides in a first sliding groove along with the first sliding table when the locking block moves along with the sliding block, so that a first inclined ejection piece and a second inclined ejection piece contract inwards till the core pulling with an inverted buckling part is completed.

Description

technical field [0001] The invention relates to the technical field of injection molds, in particular to a delayed core-pulling structure. Background technique [0002] Injection molds are commonly used molds for forming plastic parts. Various forms of plastic parts can be formed through injection molds to meet people's various needs. With the improvement of the technical level of process production, there are often barbs of various shapes in many injection molded parts. However, it is often impossible to easily separate the mold from the injection molded parts when the mold is opened, and even the injection molded parts are caused by improper methods. Damage not only wastes a lot of labor but also increases unnecessary costs. Contents of the invention [0003] The purpose of the present invention is to provide a time-delayed core-pulling structure to solve the technical problems in the background art. [0004] In order to achieve the aforementioned object, the present i...

AI Technical Summary

Problems solved by technology

With the improvement of the technical level of process production, there are often barbs of various shapes in many injection molded parts. However, it is often impossible to easily separate the mold from the injection molded parts when the mold is opened, and even the injection molded parts are caused by improper methods. damage, not only wasting a lot of labor but also increasing unnecessary costs

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