Polyurethane solid tire mold and its processing method

Abstract

A polyurethane solid tire mold and a processing method thereof belong to the technical field of solid tire processing. The lower pattern module is composed of a plurality of lower pattern blocks (5) spliced ​​along the circumferential direction, and the lower pattern blocks (5) are slidably arranged in the lower fixing seat (6) through the lower pattern block guide mechanism, and the lower pattern block guide mechanism makes the lower pattern block (5) Displacement radially outward occurs while sliding upward. When the mold is opened, the lower pattern block slides upwards and produces a radially outward displacement, so that the lower pattern blocks are separated from each other and separated from the tire, which is convenient for taking the tire out of the tire mold cavity. The processing method of polyurethane solid tire can be The air bubbles in the raw materials are extruded and vulcanized twice to produce polyurethane low-speed solid tires with wear resistance 5 to 10 times that of ordinary rubber. The load capacity is large, which solves the common problems of falling blocks and cracks in rubber solid tires, and can achieve no traces of running brakes, which is environmentally friendly and clean.

Description

technical field [0001] A polyurethane solid tire mold and a processing method thereof belong to the technical field of solid tire processing. Background technique [0002] Existing polyurethane tires mainly have two forms; one is to only use polyurethane as a wear-resistant layer to coat the outside of the rubber inner tube to increase the wear resistance of the tire while retaining part of the elasticity of the inner rubber. However, this form still does not solve the problems such as short rubber life and easy cracking, and the phenomenon of inner tube air leakage still often occurs; the second is that the inside of the usual inner pneumatic rubber tire is filled with foamed polyurethane material, and this foamed polyurethane is simply used as the internal filling of rubber tires. Although the problem of rubber air leakage has been successfully solved, the problems of the outer rubber tires being not wear-resistant, not oil-resistant, and having a short service life have n...

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Problems solved by technology

However, this form still does not solve the problems such as short rubber life and easy cracking, and the phenomenon of inner tube air leakage still often occurs; the second is that the inside of the usual inner pneumatic rubber tire is filled with foamed polyurethane material, and this foamed polyurethane is simply used as the internal filling of rubber tires. Although the problem of rubber air leakage has been successfully solved, the problems of the outer rubber tires being not wear-resistant, not oil-resistant, and having a short service life have not been solved; when producing polyurethane solid tires, liquid raw materials need to be cast into molds, but currently There is no mold suitable for the production of polyurethane solid tires, and the existing tire molds are difficult to take out the tires when the mold is opened, and it is not easy to clean

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