Automobile elbow pipe core-pulling mechanism

Abstract

The invention discloses an automobile elbow pipe core-pulling mechanism which comprises a product and a lower mold plate. The product is located on the lower mold plate; an arc-shaped groove is formedin the product; an annular bulge is arranged at the front end of the product; a circular groove is formed in the annular bulge; the diameter of the circular groove is larger than the diameter of thearc-shaped groove; the circular groove communicates with the arc-shaped groove; a first insert core for forming the inner wall of the circular groove is arranged in the circular groove; and a second insert core for forming the inner wall of the arc-shaped groove is arranged in the arc-shaped groove. The automobile elbow pipe core-pulling mechanism further comprises a first-time linear core-pullingmechanism for core-pulling the circular groove, and a second-time arc core-pulling mechanism for core-pulling the arc-shaped groove, wherein the first insert core is connected with the second insertcore; and the second-time arc core-pulling mechanism is located on the lower mold plate. The invention provides the automobile elbow pipe core-pulling mechanism which is not easy to damage when beingpulled and has high reliability.

Description

technical field [0001] The invention relates to the field of injection molds, in particular to an automobile elbow core-pulling mechanism. Background technique [0002] Injection mold is a tool for producing plastic products. It consists of two parts: a movable mold and a fixed mold. During injection molding, the movable mold and the fixed mold are closed to form a pouring system and a cavity. When the mold is opened, the movable mold and the fixed mold are separated to remove the plastic. The product, the elbow is a large-angle arc. According to the existing technology, according to the ordinary core-pulling mechanism, the mechanism takes up a lot of space, the movement distance is long, and it cannot be demoulded quickly. It will interfere with the structure of other parts of the product, so that the arc cannot be realized at all. Core pulling, poor movement stability. Contents of the invention [0003] The technical problem to be solved by the present invention is: to ...

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Problems solved by technology

[0002] Injection mold is a tool for producing plastic products. It consists of two parts: a movable mold and a fixed mold. During injection molding, the movable mold and the fixed mold are closed to form a pouring system and a cavity. When the mold is opened, the movable mold and the fixed mold are separated to remove the plastic. The product, the elbow is a large-angle arc. According to the existing technology, according to the ordinary core-pulling mechanism, the mechanism takes up a lot of space, the movement distance is long, and it cannot be demoulded quickly. It will interfere with the structure of other parts of the product, so that the arc cannot be realized at all. Core pulling, poor movement stability

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