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Method for preventing design defect of tyre out-of-roundness

A tire and roundness technology, which is applied in the field of preventing tire out-of-roundness design defects, and can solve problems such as insufficient mechanical concentricity and uneven tire feeding

Inactive Publication Date: 2018-03-13
AEOLUS TIRE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, it was always believed that the out-of-roundness of tires was caused by uneven material feeding and insufficient mechanical concentricity during the production process, and it was never considered from the design point of view.

Method used

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  • Method for preventing design defect of tyre out-of-roundness
  • Method for preventing design defect of tyre out-of-roundness

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Embodiment Construction

[0025] Due to the vulcanization using the active mold, the active mold has radial displacement during the vulcanization process. figure 1 It is represented by H. Therefore, in the product design process, the relationship between the diameter of the tire blank, the pattern form and the inner and outer diameters of the mold must be considered. The tire pattern form is a pattern with a thinner (≤3mm) transverse pattern sipe design. Use The mold is composed of 9 active molds: S1, S2, S3, S4, S5, S6, S7, S8 and S9.

[0026] Such as figure 1 As shown in , the outer ring is the state when the stroke of the movable die is at its maximum. The outer diameter of the mold when the stroke of the movable die reaches the maximum state during the vulcanization process is D1, and the inner diameter of the mold when the stroke of the movable die reaches the maximum state during the vulcanization process is D2. The inner ring is the state when the stroke of the flexible mold is at the minimum. ...

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Abstract

A method for preventing the design defect of tyre out-of-roundness comprises the step that the corresponding relation of a cover tyre blank diameter, the pattern form and the die inner and outer diameter is considered. The traditional prejudice that the tyre out-of-roundness is caused due to the problems in the production process is broken, starting from the tyre and die design angle, the relationof the tyre blank diameter and die diameter is analyzed, the out-of-roundness generation mechanism is analyzed, and the solution is provided. The radial tyre design angle is combined with the radialtire production process, the out-of-roundness problem possibly happening in the radial tyre design is found, and a prevention method is provided.

Description

technical field [0001] The present invention relates to a method for preventing tire out-of-roundness design defects. Background technique [0002] With the development of the road transportation industry and the automobile industry, the market has higher and higher requirements for the driving stability and comfort of vehicles. The uniformity of tires directly affects the handling stability and ride comfort of vehicles at high speeds. Uneven tires will cause vehicle vibration and poor handling. Seriously, it may cause traffic accidents, resulting in loss of life and property. Uneven tires have become A major problem that customers complain about, so the problem of tire unevenness has become a major problem affecting the use of tires. [0003] The uniformity of the tire mainly includes the uniformity of geometric size, uniformity of mass distribution and uniformity of force distribution. Now, the highest requirement of our customers is the geometric uniformity, that is, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D30/06
Inventor 周鹏飞李昭樊军伟马向前任晓静
Owner AEOLUS TIRE
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