Extrusion device for processing rubber

Abstract

The invention discloses an extrusion device for processing rubber. The extrusion device comprises an extrusion cylinder, a rotary shaft, an extrusion screw and a power source driving the rotary shaft to rotate, wherein the extrusion screw is connected to the rotary shaft; an extrusion cavity is formed in the extrusion cylinder; the rotary shaft is located in the extrusion cavity; a feeding hopper communicated with the extrusion cavity is arranged on the extrusion cylinder; the extrusion device is also provided with a transition section with a transition cavity; the transition cavity is communicated with one discharging side of the extrusion cavity; a memory metal sheet and a resetting part used for opening and closing the transition cavity are arranged in the transition cavity; the extreme pressure of the memory metal sheet stressed to open the transition cavity is 120-150Pa; one end of the resetting part is connected with the inner wall of the transition cavity, and the other end of the resetting part is connected with the memory metal sheet. Through the extrusion mechanism, the extrusion pressure for extruding the rubber from the extrusion cylinder is enough under the condition that the extrusion mechanism is frequently stopped and started again; the extruded rubber meets the requirement.

Description

technical field [0001] The invention belongs to the field of molding or connection of plastics, and in particular relates to an extruding device for rubber processing. Background technique [0002] Early rubber was latex taken from plants such as rubber trees and rubber grasses, which were processed into materials with elasticity, insulation, impermeability to water and air. High elastic polymer compound. Divided into two kinds of natural rubber and synthetic rubber. Natural rubber is processed by extracting gum from rubber trees, rubber grass and other plants; synthetic rubber is obtained by polymerization of various monomers. [0003] The rubber industry is one of the important basic industries of the national economy. It not only provides daily and medical light industrial rubber products that are indispensable for people’s daily life, but also provides various rubber production equipment or rubber parts for mining, transportation, construction, machinery, electronics ...

AI Technical Summary

Problems solved by technology

[0005] The rubber extrusion process is usually extruded in the extrusion mechanism. The existing extrusion mechanism usually includes an extrusion cylinder and an extrusion screw. The extrusion cylinder is provided with a cylindrical cavity, and the extrusion screw is located in the cylindrical cavity. However, during the extrusion process, especially when the operation of the rubber extrusion mechanism is frequently stopped and restarted, the amount of rubber just extruded from the extrusion cylinder is small, and the extrusion pressure is small, so it is usually extruded The rubber produced does not meet the requirements

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