Venting apparatus for a tire vulcanizing mold

A technology of tire vulcanization molds and exhaust devices, which is applied to tires, household appliances, and other household appliances, and can solve problems such as loss of elasticity, failure of exhaust devices to work, and small space

Inactive Publication Date: 2004-01-14
HANKOOK TIRE WORLDWIDE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, since the space between the valve body insertion portion 24 and the inner surface of the central through hole 16 is very small, and the space has the same size up and down, when the r

Method used

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  • Venting apparatus for a tire vulcanizing mold
  • Venting apparatus for a tire vulcanizing mold
  • Venting apparatus for a tire vulcanizing mold

Examples

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Example Embodiment

[0021] Specific implementation

[0022] figure 2 It is an exploded perspective view of the exhaust device according to the first embodiment of the present invention. image 3 Is in figure 2 A cross-sectional view of the vent device and the mold, with the whole being cut in the longitudinal direction.

[0023] Such as figure 2 and image 3 As shown, the exhaust device of the first embodiment of the present invention is roughly divided into: a housing 44 inserted into the exhaust hole 42 of the mold 40, a valve body 48 inserted into the center through hole 46 of the housing 44, and a valve body 48 that is inserted into the center through hole 46 of the housing 44. 48 applies elastic force to surround the lower part of the spring 50, and the stopper 52 which is connected to the lower front part of the valve body 48 and substantially controls the movement distance of the valve body 48 in the vertical direction.

[0024] Here, the central through hole 46 formed in the housing 44 is...

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PUM

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Abstract

The present invention relates to an improved venting apparatus installed in a tire vulcanizing mold (40). In the venting apparatus, an inner diameter of a center through hole (46) formed in the casing (44) is gradually increased in an upper direction and is gradually decreased in a lower direction for thereby forming a tapered shape. The angles of the slant surfaces of the valve head (56) point-contacting with an upper corner portion (58) of the center through hole (46) are different, so that a discharging capability of air is enhanced, and it is possible to prevent a formation of a vent rubber in a finished tire which vent rubber is formed when a rubber flows into a venting apparatus. In addition, it is possible to prevent an error operation during a vulcanization and to extend a life span of a venting apparatus. The maintenance is easier.

Description

technical field [0001] The invention relates to an exhaust device of a tire vulcanization mold. More specifically, by improving the exhaust device installed in the tire vulcanization mold, the air discharge capacity is improved, thereby suppressing the formation of air holes in the finished tire due to the rubber flowing into the exhaust device, and preventing vulcanization. Poor operation to prolong the durability of the exhaust. Background technique [0002] Generally, green tires manufactured in the raw rubber state are tires that are vulcanized in a high-temperature, high-pressure vulcanization mold. The vulcanization mold is composed of a mold part and an air bag (brada) that pressurizes the raw tire in the mold. of. Furthermore, vent holes are provided on the inner surface of the mold so that the air existing between the green tire and the mold can be exhausted to the outside of the mold. [0003] Such a vent hole not only discharges air, but also discharges the rub...

Claims

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Application Information

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IPC IPC(8): B29C33/02B29C33/10B29C35/02B29L30/00
CPCB29D2030/0617B29C33/10Y10S425/812
Inventor 安明宪张仁硕金用燮
Owner HANKOOK TIRE WORLDWIDE
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