Apparatus for measuring contour shape of core assembly and inspection method of raw tire using the apparatus

An inspection method and assembly technology, applied in the direction of measuring devices, optical devices, instruments, etc., can solve problems such as tire molding failure, vulcanization mold damage, rubber volume is too large, etc., and achieve the effect of simple structure

Inactive Publication Date: 2018-02-16
SUMITOMO RUBBER IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Such a large pressure also has the problem of easily damaging the vulcanizing mold
In addition, there are also cases where tire molding defects after vulcanization occur irrespective of the excessive or insufficient rubber volume as described above.
[0005] In addition, since the size of the green tire core before the vulcanization process is different from the design drawing of the tire, it is difficult to evaluate the molding state of the green tire

Method used

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  • Apparatus for measuring contour shape of core assembly and inspection method of raw tire using the apparatus
  • Apparatus for measuring contour shape of core assembly and inspection method of raw tire using the apparatus
  • Apparatus for measuring contour shape of core assembly and inspection method of raw tire using the apparatus

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Embodiment Construction

[0033] Hereinafter, one embodiment of the present invention will be described based on the drawings.

[0034] The device for measuring the contour shape of the core assembly (hereinafter, sometimes simply referred to as "measuring device") 1 of the present invention, such as figure 1 and figure 2 Shown is an apparatus for measuring the contour shape of a core assembly 4 in which a green tire 3 or a vulcanized tire (not shown) is formed on the outer surface of a rigid core 2 . The measurement device 1 includes a core support unit 5 holding the core assembly 4 and a measurement unit 6 for measuring the distance from the measurement unit 6 to the contour position of the core assembly 4 . The core supporting part 5 and the measuring part 6 are arranged adjacent to each other.

[0035] In this embodiment, by means of figure 1 The core assembly 4 before measurement is carried in by the carrying-in device 7 disposed on the left side of the measuring device 1 . The pre-measuremen...

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Abstract

The present invention provides a device for measuring the contour shape of a core assembly and a raw tire inspection method using the device for evaluating the molding state of the green tire. A measuring device (1) includes a core support unit (5) that holds a core assembly (4), and a measurement unit (6) that measures a distance to a contour position of the core assembly (4). The measuring unit (6) includes a distance sensor (56) for measuring a distance, and a sensor moving unit (57) for moving the distance sensor (56). The sensor moving unit (57) makes the laser (Ra) from the distance sensor (56) sequentially irradiate the outer peripheral surface of the core assembly (4) and the horizontal plane passing through the axis (4c) of the core assembly (4). Contour Position (59).

Description

technical field [0001] The present invention relates to a device for measuring the contour shape of a core assembly formed with a green tire or a vulcanized tire, and a method for inspecting a green tire using the device. Background technique [0002] In recent years, in order to improve the uniformity of tires, for example, a manufacturing method using a core having an outer surface whose shape is close to that of the inner surface of a finished tire has been proposed (see, for example, Patent Document 1 below). In this manufacturing method, firstly, a raw tire forming process is performed, that is, components including inner liner rubber and carcass ply are sequentially pasted on the outer surface of the core to form a green tire. Then, a vulcanization process is performed, that is, a green tire core (core assembly) with a green tire formed on the core is put into a vulcanization mold, and the green tire is vulcanized and molded between the core and the vulcanization mold....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/24
Inventor 鬼松博幸
Owner SUMITOMO RUBBER IND LTD
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