Method for measuring bending amount of carcass cord of all-steel-wire radial tire

Through standardized cross-sectional cutting, front-back symmetric marking, non-destructive stripping of inner lining layer, toner reinforced contrast printing and geometric modeling, the bending amount and bending degree of the full-steel wire radial tire cord is accurately measured, which solves the problem of inaccurate measurement in the prior art and provides quantitative data to support product development.

CN120506918AActive Publication Date: 2025-08-19GITI RADIAL TIRE (ANHUI) CO LTD
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Patent Information

Application Number
CN202510483217.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-17
Publication Date
2025-08-19
Estimated Expiration
2045-04-17

AI Technical Summary

Technical Problem

The prior art cannot accurately measure the bending amount and bending degree of the full-steel wire radial tire cord, which leads to misleading the direction of product improvement during product development, affecting product quality and brand reputation, and the detection results are susceptible to equipment imaging and human factors.

Method used

Using standardized cross-sectional cutting, front-and-back symmetric marking, non-destruction of lining, toner reinforced contrast printing and geometric modeling, the cord bending amount and bending degree are accurately measured through trigonometric function calculations and standardized measurement data sources are established.

Benefits of technology

Accurate and lossless measurement of tire cord bending amount and bending degree is achieved, the problem of inaccurate measurement in the prior art is solved, and quantitative data is provided to support product development.

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Abstract

The invention discloses a method for measuring the bending amount of a carcass cord of an all-steel radial tire, which comprises the following steps of: cutting the tire into a flat section, and establishing a global coordinate reference; removing the lining layer to obtain a complete carcass cord, connecting the mark points on the front and back surfaces to form a measurement datum line, and establishing a space coordinate system; accurately mapping the three-dimensional cord thread form into a two-dimensional plane rubbing graph, and generating a standardized measurement data source through transfer fixation; based on the plane rubbing graph, the bending amount of the tire body cord thread is obtained through geometric modeling and trigonometric function calculation, then the bending degree is calculated, and the bending degree is converted into lossless quantitative analysis and engineering parameter output of cord thread deformation. According to the method, the measurement of the bending amount and the bending degree of the tire body cord thread is realized by combining geometric modeling and trigonometric function calculation through standardized section cutting, symmetric marking, inner lining layer lossless stripping and carbon powder plane rubbing technologies, and quantitative data support is provided.
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