Auxiliary filling injection mold for side runner

Abstract

The invention provides an auxiliary filling injection mold for a side runner, and belongs to injection molding machining. The problem that an existing injection mold is unstable in structure is solved. The auxiliary filling injection mold for the side runner comprises a movable mold and a fixed mold, wherein an inclined forming surface is formed between the movable mold and the fixed mold, a first strip-shaped forming cavity and a second strip-shaped forming cavity are formed in the forming surface, the first forming cavity and the second forming cavity are distributed in a high-low mode, the first forming cavity is located on the upper side, an auxiliary runner is arranged between the first forming cavity and the second forming cavity, and the movable mold is provided with an ejector rod structure used for assisting opening and closing of the runner and an injection molding channel downwards penetrating into the forming face and communicating with the first forming cavity and the second forming cavity. The mold has the advantages of stable structure and good forming quality.

Description

technical field [0001] The invention belongs to the technical field of injection molding, and relates to a side flow channel auxiliary filling injection mold. Background technique [0002] Injection molding is a tool for producing plastic products, and it is also a tool for giving plastic products a complete structure and precise dimensions. Injection molding is a processing method used in the mass production of certain complex-shaped parts. Specifically, it refers to melting plastic by heat. The injection molding machine is injected into the mold cavity under high pressure, and after cooling and solidification, the molded product is obtained. The injection mold is composed of a moving mold and a fixed mold. On the template, the movable mold and the fixed mold are closed to form the gating system and the cavity during injection molding, and the movable mold and the fixed mold are separated to take out the plastic product when the mold is opened. [0003] Due to the simple s...

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Problems solved by technology

[0003] Due to the simple structure, most of the strip-shaped products are directly molded by injection molding, such as the handle and handle of the trash can. When the pressure is unstable, the edge of the product tends to be unevenly molded. When the pressure is continuously increased to the molding cavity, the excessive pressure in the mold will cause the product to be difficult to demould, and cracks will occur after demoulding.

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