Injection mold of staggered spiral line type hollow propelling pipe

Abstract

The invention discloses an injection mold of a staggered spiral line type hollow propelling pipe. The injection mold comprises a mold bottom plate, a pressing plate, a half movable template, a half fixed template, a pouring system, a cooling system and a core pulling structure, wherein the half movable template and the half fixed template are put together, the inside of the movable template and the inside of the fixed template are respectively provided with an insert component, a semi-spiral structure is machined on a mold cavity face formed by each insert component, the two semi-spiral structures are staggered and put together oppositely, a cylindrical mold core with one axial groove in one side is inserted into the middles of the mold cavity faces, the core pulling structure is connected with a hydraulic cylinder, the two sides of the mold are respectively and fixedly provided with a sliding block structure, and oil cylinder fixing blocks used for the hydraulic cylinder are arranged on the sliding block structures. According to the injection mold, the mold cavities can be in two halves and are put together oppositely, the semi-spiral structures are staggered and put together oppositely, a transition plane is formed at the joint portion of the spiral faces, the mold finished product rate is substantially improved, product performance is excellent, the long cylindrical mold core can provide power through the core pulling structure connected with the hydraulic cylinder, the hydraulic cylinder slides in a limited mode, the guide accuracy is high, the injection mold is of a structure with two cavities, and the production rate is high.

Description

technical field [0001] The invention belongs to the technical field of molds for processing spiral products, and in particular relates to an injection mold for a dislocation helical hollow propulsion tube. Background technique [0002] At present, the spiral propulsion tube is widely used in industry, mainly used in water supply engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation, especially in water supply, drainage, sewage treatment engineering, mud transportation, material particle transfer, marine piling tube and other fields. It is mainly to use its structural characteristics to realize spiral propulsion or export, and push the material from the collecting hopper to the next equipment. Commonly used steel structure welding parts and plastic injection molding parts. For example, the patent application number: 201320001560.X discloses a substrate removal device, which includes a slope collection mechanism and a scr...

AI Technical Summary

Problems solved by technology

The structure of the above-mentioned invention adopts a slider and a spiral core structure. The spiral core relies on the rotation of the split-type oblique bearing to achieve the ejection of the plastic product by the cylinder to solve the demoulding problem, but each spiral piece needs an independent split-type oblique bearing. Bearing, its structure is still relatively complex, and the demoulding process is relatively cumbersome

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