Injection mold

Abstract

The invention relates to the field of injection molds, in particular to an injection mold. The injection mold comprises an extruder body, a fixing structure, a lifting structure, a sealing structure,a limiting structure and an anti-blocking structure, wherein the fixing structure is arranged on the extruder body; the fixing structure is arranged, and the fixing structure is conveniently installedafter emitting material of the extruder body instead of being sealed through a waterproof adhesive tape; and the anti-blocking structure is connected with the fixing structure. When the temperature inside the extruder body is too low that raw materials are not completely plasticized, but gradually block the anti-blocking structure and further abut against the anti-blocking structure, the anti-blocking structure can prevent material emitting; when the pressure of the raw materials on the anti-blocking structure is too large, the anti-blocking structure drives the fixing structure to be separated from the extruder body, so that the raw materials are prevented from blocking the fixing structure; and meanwhile, the anti-blocking structure facilitates the removal of completely plasticized rawmaterials in the holes of the extruder body, so that the operation efficiency and the use safety performance are greatly improved.

Description

technical field [0001] The invention relates to the field of injection molds, in particular to an injection mold. Background technique [0002] Injection molding is a tool for producing plastic products; it is also a tool for giving plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain complex-shaped parts. The injection molding machine is injected into the mold cavity under high pressure, and after cooling and solidification, the formed product is obtained. Before the plastic product is formed, it needs to be plasticized in the plasticizing extruder in the injection mold, and then extruded and cooled to form, for example: PE winding pipe In the production process, the raw materials are plasticized by the extruder, and then preliminarily shaped by the die of the plasticized extruder, then shaped again by the sizing sleeve, then cooled by the cooling water tank, and finally wound and bonded by...

AI Technical Summary

Problems solved by technology

[0003] However, when dust material is used in the plasticizing extruder of the traditional winding tube, due to the action of the vacuum pump, the large particles of the dust material are easy to enter the pipeline, which accelerates the blockage of the vacuum pipeline, and the connection between the pipeline and the plasticizing extruder is poor. , it needs to be sealed again with waterproof tape. After disassembly, the connection rubber pad on the plasticizing extruder is easy to be broken, and the inside of the plasticizing extruder cannot form a vacuum after being broken. The plasticizing temperature of the plasticizing extruder is too low, and it is easy to emit material, which will cause the connecting components of the plasticizing extruder to be blocked, and even directly enter the interior of the vacuum pipeline, making it inconvenient to clean up later. The traditional method is to use plastic pipes to The incompletely plasticized plastic raw material is pressed into the plasticizing equipment at the connection hole between the connecting component and the extruder. The plastic pipe is easily damaged at high temperature. When pressing with an iron pipe, it is easy to touch the inner screw and cause the screw to be damaged.

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