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Inspection method for side plate of tire mold

A technology of tire molds and inspection methods, which is applied to tires, household appliances, and other household appliances, and can solve problems such as omissions, labor costs for inspectors, waste of tires, etc.

Inactive Publication Date: 2019-11-12
TOYO TIRE & RUBBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in the method of visually inspecting the side panels, not only the labor of the inspector is spent, but also there is a possibility that omissions may occur.
In addition, in the method of inspecting the tire itself, it is found that the character does not match the design by inspection after a large number of tires have been manufactured, and the tires manufactured before the identification are wasted

Method used

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  • Inspection method for side plate of tire mold
  • Inspection method for side plate of tire mold
  • Inspection method for side plate of tire mold

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] Embodiments are described with reference to the drawings. In addition, although the present embodiment can inspect various uneven marks (characters, marks, etc. included in the marks) on the side plate, the following descriptions will be made by citing characters as representative marks.

[0031] 1. Check the structure of the device

[0032] figure 1 An inspection device 10 used for inspection of side panels (hereinafter referred to as "side panels") of the tire mold according to the embodiment is shown. The inspection device 10 is provided with: a rotary table 11 on which the side plate of the inspection object is placed; a driving device 12 which rotates the rotary table 11; a two-dimensional laser displacement meter 13 which is used to obtain profile data (concave-convex data) of the side plate; a computer 20 ; and a programmable logic controller (so-called PLC) 14 . Furthermore, the inspection device 10 further includes a display device 15 for displaying processi...

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PUM

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Abstract

The invention provides a new method for automatically inspecting whether a side plate is completed as designed. The method includes a step of constructing a template by imaging a symbol based on design data; a stEp of detecting a symbol group including a plurality of templates; a step of template matching that searches for a symbol set part having the same shape as the symbol groin in a measured image, makes the positions and the sizes of the symbol group and the symbol set part having been searched for identical, and superimposes all symbols in the design data on all symbols in the measured image; a step of contour matching that compares the contours of the superimposed symbols in the design data with the contours of the symbols in the measured image; and a step of deciding whether the symbols corresponding to each other in the measured image and the design data match based on the template matching and the contour matching.

Description

[0001] This application is based on Japanese patent application 2018-88773 (filing date: May 2, 2018), and enjoys priority from Japanese patent application 2018-88773. This application incorporates the entire contents of Japanese Patent Application 2018-88773 by referring to Japanese Patent Application 2018-88773. technical field [0002] The invention relates to a method for checking tire mold side plates. Background technique [0003] A tire mold used for vulcanization molding of a tire includes: a side plate in contact with a sidewall portion of the tire; a sector in contact with the tread portion of the tire; and a steel ring in contact with the bead portion of the tire. Among them, the side plate is an annular member in plan view, and its upper surface is the molding surface (the surface that contacts the tire during vulcanization molding). [0004] On the molding surface of the side plate, a plurality of characters for forming characters on the sidewall portion of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/24
CPCG01B11/24B29D30/0606B29D30/0662B29D30/72B29D2030/0066B29D2030/0612B29D2030/726G06T7/001G06T2207/10028G06T2207/30116G06V10/225G06V10/752G06V2201/09G06T7/0008G06T7/13
Inventor 任思怡乔治·拉什基亚
Owner TOYO TIRE & RUBBER CO LTD