Inspection method and inspection line for tyres

A detection method and detection line technology, applied in the direction of vehicle testing, machine/structural component testing, measuring devices, etc., can solve problems such as interference with detection machine operations, underestimation of tires, etc.

Active Publication Date: 2016-05-25
MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is therefore a risk that even if a tire is acceptable, the operator may underestimate the tire and may interfere with the operation of the inspection machine if the operator selects a tire that should not be accepted

Method used

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  • Inspection method and inspection line for tyres
  • Inspection method and inspection line for tyres
  • Inspection method and inspection line for tyres

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Experimental program
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Embodiment Construction

[0031] The following description relates to a tire P to be tested, comprising a peripheral tread R, sidewalls F1 and F1 , and annular beads B1 and B2 terminating the inner edges of these sidewalls.

[0032] figure 1 A test line 10 for testing a tire P is shown in a general manner, said test line 10 comprising in turn a macro test station 12 for carrying out the first test sequence, a selection station 13, an intermediate brushing station 14, and a micro test station 16 (The microscopic inspection station 16 is used to carry out the second inspection sequence if the tire is received at the selected station).

[0033] Such as figure 1 and figure 2 As shown in more detail in , the macro inspection station 12 includes driving means 18 for rotating the tire P, and these means include a vertical rotating shaft 20, the upper end of which is equipped with, for example, four wheels arranged at 90°. The four-armed support 22 consists of radial support arms 24 that provide a horizont...

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PUM

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Abstract

A method and line for inspection of tyres, wherein: a first inspection post (12) for macroscopic inspection comprises means for rotating the tyre and means for acquiring a macroscopic image of the tyre and first means for analyzing this macroscopic image by digital image processing and for comparing the macroscopic image with a reference image and detecting any variations in shape; a second inspection post (16) for microscopic inspection comprises means for rotating the tyre and means for acquiring a microscopic image of the tyre and second means for analyzing this microscopic image by digital image processing and comparing the microscopic image with a reference image that is representative of a desired surface condition of the tire to detect any local surface variations; transfer means (50) that transfer the tire from the first post to a discharge point or to the second inspection post.

Description

technical field [0001] The invention relates to the field of visual monitoring of tyres. Background technique [0002] Visual inspection has grown extensively in the tire manufacturing process and is still often based on the skill of the operator responsible for verifying the absence of visible defects on the tire surface to ensure the consistency of the tire surface. [0003] In order to assist the operator in searching for any surface anomalies, it is known to use an automatic inspection machine comprising drive means for rotating the tire and means for acquiring a digital image which is then compared with a reference Image comparison. Examples of these machines are described in patents EP1959227, EP2023078, EP2172737 and WO2011 / 113711. [0004] However, the visual selection of tires that can be inspected by these automatic inspection machines is done by the operator. There is therefore a risk that even if a tire is acceptable, the operator may underestimate the tire an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/95
CPCG01N21/952G01N21/954G01M17/027G01M17/021G06T7/001G06T2207/10056G06T2207/30252
Inventor C·克罗泽雅克C·里奥博
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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