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Tire vulcanization mold manufacturing method and tire vulcanization mold

一种轮胎硫化、制造方法的技术，应用在轮胎硫化用模具的制造以及轮胎硫化用模具领域，能够解决加工工序变多、制造所需的时间变长等问题

Inactive Publication Date: 2012-05-30
THE YOKOHAMA RUBBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, in this exhaust mechanism, since it is necessary to form a pocket on the tire molding surface of the cast mold, to manufacture an assembly of laminated blades held on a block, and to fit the assembly into the pocket, Therefore, there are problems that the number of processing steps increases and the time required for manufacturing becomes longer.

Method used

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  • Tire vulcanization mold manufacturing method and tire vulcanization mold
  • Tire vulcanization mold manufacturing method and tire vulcanization mold
  • Tire vulcanization mold manufacturing method and tire vulcanization mold

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Embodiment Construction

[0048] Next, the manufacturing method of the mold for tire vulcanization and the mold for tire vulcanization of the present invention will be described based on the illustrated embodiment. C arrows, R arrows, and W arrows shown in the figure indicate the circumferential direction, radial direction, and width direction of the raw tire inserted into the vulcanizing mold to be vulcanized, respectively.

[0049] Such as figure 1 As shown, the mold 1 for tire vulcanization of the present invention (hereinafter referred to as the mold 1 ) is formed as a combined mold composed of a plurality of sector parts 2 combined in a ring shape. Such as figure 2 , 3 As shown, each fan-shaped part 2 is composed of a plurality of segments 3 and a back block 4, and is installed on the back block 4 in a state where adjacent segments 3 are closely attached. The inner peripheral side surface of each segment 3 forms a tire forming surface 5 . Groove forming protrusions 6 for forming tire grooves ...

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Abstract

Disclosed are a tire vulcanization mold manufacturing method and a tire vulcanization mold wherein an exhausting mechanism capable of securing sufficient exhaust can be generated by reduced processing processes. When manufacturing the mold by transferring the surface (11a) of a gypsum mold (11) by casting a melted metal (M) into the surface (11a) of the gypsum mold (11) and solidifying the meltedmetal (M), cylindrical bodies (7) each having a slit (8) for causing the hollow inside (7a) to communicate with the outside are arranged so as to bring the slits (8) into contact with the surface (11a) of the gypsum mold (11) and the melted metal (M) is thereafter casted into the surface (11a) of the gypsum mold (11) and solidified. Therefore, the cylindrical bodies (7) are embedded in the mold and the slits (8) are exposed in the tire molding-surface of the mold.

Description

technical field [0001] The present invention relates to a method for manufacturing a mold for tire vulcanization and a mold for tire vulcanization. More specifically, it relates to a method for manufacturing a mold for tire vulcanization and a mold for tire vulcanization that can form an exhaust mechanism capable of ensuring sufficient exhaust gas in fewer steps. mold. Background technique [0002] The mold for tire vulcanization is provided with an exhaust mechanism for exhausting air remaining between the raw tire and the mold or gas generated during vulcanization to the outside of the mold. In the prior art, vent holes are frequently used as venting mechanisms, but since rubber flows into the vent holes and discharge occurs during vulcanization, various vent mechanisms that do not generate venting have been proposed (e.g. , Patent Documents 1, 2, 3). [0003] In Patent Documents 1 and 2, there is proposed an exhaust mechanism in which lamination blades of overlapping th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C33/38B29C33/02B29C33/10
CPCB29D30/0606B29C33/02B29C33/10B29C33/38
Inventor 高田昇
Owner THE YOKOHAMA RUBBER CO LTD
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