Tool for checking left-right symmetry degree of winding tread

Abstract

Provided in the invention is a tool for checking a left-right symmetry degree of a winding tread. The tool comprises a standard plate and a measuring ruler, wherein the bottom contour shape of the standard plate is consistent with the contour shape of a winding tread. A center line and measuring side lines are set on the standard plate; the central line is arranged at the central axis of the standard plate and the measuring side lines are arranged at the two sides of the central line; and scales are arranged at the central line and the measuring side lines. The measuring ruler is in contact with the standard plate and is parallel with and is close to the measuring side line. Compared with the prior art, the tool has the following beneficial effects: a left-right symmetry degree of a key point at any place in the circumferential direction of a winding tread is determined accurately while the labor intensity of the molder is not increased; the operation is simple and the accuracy is high; a winding problem can be discovered quickly; and the winding quality of the tread and the yield of the finished tire are enhanced.

Description

technical field [0001] The invention relates to the technical field of tire production, and specifically designs a tool for inspecting the left-right symmetry of a wound tread. Background technique [0002] For tire winding tread, there are many factors that will make its actual winding shape deviate from the standard shape, thus affecting the quality and performance of the finished tire. If the tread winding is not ideal, it is easy to cause the base rubber thickness of the finished tire to be uneven, and the left and right sides are asymmetrical. In serious cases, it may even cause quality problems such as exposed lines on one side of the crown groove of the finished tire, and the product qualification rate will drop. If the asymmetry of rubber thickness at the base of the tire tread is not discovered in time, the tires will be released to the market, which will also cause early damage to the tires and damage the image of the product in the hearts of customers. Based on p...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the qualified rate of the finished tire after vulcanization is reduced due to the unsatisfactory left and right symmetry of the wrapped tread, and the problem of early damage during use, the purpose of the present invention is to provide a simple and efficient measuring tool to inspect the circumferential direction of the wrapped tread. The left-right symmetry of the key points at any position can quickly and timely find out the problem and take measures to improve it when there is an abnormality in the winding process, so as to improve the stability of the tire winding tread process, thereby reducing the quality of the finished tire crown exposed line risk of problems

Images