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Method for controlling high speed uniformity in tires

A uniformity and tire technology, applied in the field of tire manufacturing, can solve problems such as inability to eliminate unevenness

Inactive Publication Date: 2005-01-12
MICHELIN & CO CIE GEN DES ESTAB MICHELIN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However these methods do not eliminate the cause of unevenness, or provide any mechanism for modifying the tire manufacturing process to improve uniformity prior to curing of uneven tires

Method used

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  • Method for controlling high speed uniformity in tires
  • Method for controlling high speed uniformity in tires
  • Method for controlling high speed uniformity in tires

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[0010] [010] According to a first embodiment of the present invention, a method comprises the steps of: manufacturing at least one tire according to a series of process steps; measuring the high-speed uniform characteristic vector of the at least one tire, and at least two low-speed uniform characteristic vectors ; determine the optimal phase angle relationship of the at least two low-speed uniform characteristic vectors, the optimal phase angle relationship results in the magnitude of the selected high-speed uniform characteristic; modify at least one process step so that at least one of the low-speed uniform characteristic and the mass imbalance One is adjusted to approximate the optimal phase angle relationship, thereby producing a revised series of process steps; and at least one additional tire is manufactured according to the revised series of process steps.

[0011] [011] The mass imbalance of the present invention has a significant effect on the high-speed uniformity ch...

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Abstract

A method for controlling uniformity in tire manufacturing includes the steps of building at least one tire according to a series of process steps, determining summit mass imbalance of a tire, modeling green carcass radial runout as a sum of vectors representing contributions arising from the tire building steps, determining carcass force variation, determining a vectorial equation for the prediction of high speed uniformity based on at least the green tire radial runout and the summit mass imbalance of the tire, modifying the process to rotate the summit in relation to the carcass in order to optimize high speed uniformity per the said vectorial equation, and building at least one additional tire according to the modified series of process steps.

Description

technical field [0001] [001] The present invention relates to a tire manufacturing method, and more particularly, the present invention relates to a method for controlling and modifying the tire manufacturing process to correct the high-speed uniformity of the tire. Background technique [0002] [002] The conventional tire manufacturing method, due to its complexity, has the possibility of causing tire unevenness. Many parts, including tire casing textile wire layer, belt body wire layer, bead ring, inner pad, tread and other rubber layers, each forming a tolerance, they are provided in a process to a mold with its own tolerance. mold or drum. The resulting products are placed in a mold and subjected to heat and pressure to shape and cure the rubber part and bond the material into a whole. [0003] [003] Non-uniformity in manufactured tires is difficult to control due to the many steps and parts involved, as well as the cumulative tolerances that exist both in the manufact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M1/16B29D30/00B29D30/06G01M17/02
CPCB29D30/0662G01M17/02B29D2030/0066B29D2030/0665B29D30/0061G01M1/14G01M1/30B60C25/002
Inventor 朱方C·V·小海尔J·M·特雷勒
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN