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Tire vulcanization mold and manufacturing method therefor

A technology of tire vulcanization and manufacturing method, which is applied to household appliances, other household appliances, tires, etc., can solve problems such as inability to ensure stable exhaust, tire vulcanization failure, blade shedding, etc., to prevent tire vulcanization failure, stable exhaust, Ensure the effect of exhaust

Inactive Publication Date: 2015-03-04
THE YOKOHAMA RUBBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, stable exhaust cannot be ensured during tire vulcanization, and vulcanization failure of the tire is likely to occur
In addition, the problem of blade falling out of the exhaust groove due to continuous use of the mold is also a focus of attention

Method used

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  • Tire vulcanization mold and manufacturing method therefor
  • Tire vulcanization mold and manufacturing method therefor
  • Tire vulcanization mold and manufacturing method therefor

Examples

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Embodiment Construction

[0035] Hereinafter, the mold for tire vulcanization and its manufacturing method according to the present invention will be described based on the embodiments shown in the drawings. Figure 1 ~ Figure 3 Arrows C, R, and W described in , indicate the circumferential direction, radial direction, and width direction of the raw tire inserted into the vulcanization mold for vulcanization, respectively.

[0036] Such as figure 1 As shown, the mold 1 for tire vulcanization of the present invention (hereinafter referred to simply as the mold 1 ) is a segmented type formed by assembling a plurality of arcuate sector blocks 2 into a ring shape. Such as figure 2 , image 3 As shown, each sector block 2 is composed of a liner 4 and a plurality of parts 3 , and two adjacent parts 3 are installed on the liner 4 in a state of close contact.

[0037] Each sector block 2 forming a ring moves forward and backward relative to the center of the ring. The inner peripheral surface of each memb...

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Abstract

The present invention provides a mold for tire vulcanization capable of firmly embedding blades in a tire molding surface and ensuring stable exhaust gas, and a manufacturing method thereof. A protruding part (9) protruding in the thickness direction is provided in the middle of the up and down direction of the blade (8), and it is provided to extend from the bottom of the protruding part (9) to the top of the protruding part (9), passing through the blade (8) in the thickness direction The connecting portion (12) of the tire, the initial thickness (t3) of the exhaust groove (7) on the tire forming surface (5) is made thinner than the thickness (T) of the protruding portion (9), and the blade (8) Insert the lower end of the exhaust groove (7) for positioning, press the positioned blade (8) along the depth direction of the exhaust groove (7), squeeze and expand the exhaust air along the thickness direction through the protrusion (9) Embed the blade (8) at the same time as the groove (7), thereby forming a small gap (g) between the upper part (10) of the protrusion (9) of the embedded blade (8) and the exhaust groove (7), and The micro gap (g) and the exhaust hole (13) are communicated through the communicating portion (12).

Description

technical field [0001] The present invention relates to a mold for tire vulcanization and its manufacturing method, and more specifically, relates to a tire vulcanizer capable of firmly embedding blades in vent grooves formed on the tire forming surface and ensuring stable venting Molds and methods of making them. Background technique [0002] When tires are vulcanized, unnecessary air is trapped in the mold for tire vulcanization, and gas is generated during vulcanization. These air and gases cause vulcanization failures such as insufficient filling of rubber in tires to be vulcanized. Therefore, in order to exhaust air and gas generated during vulcanization to the outside, the mold for tire vulcanization is provided with an exhaust mechanism. [0003] As an exhaust mechanism, for example, a structure is proposed in which an elongated hole as an exhaust groove is provided on the tire forming surface, and a blade is buried in the elongated hole in an embedded manner, so th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C33/10B29C33/02B29C33/38
CPCB29C33/10B29D30/0629B29D2030/0613B29D2030/0617B29K2905/02Y10T29/49826B29C33/02B29C35/02B29D30/0606
Inventor 高田昇
Owner THE YOKOHAMA RUBBER CO LTD
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