EXHAUST DEVICE AND TIRE MOLD - HIMILE MECHANICAL SCIENCE AND TECH SHANDONG CO LTD

Title:

EXHAUST DEVICE AND TIRE MOLD

Document Type and Number:

WIPO Patent Application WO/2020/248445

Kind Code:

A1

Abstract:

An exhaust device and a tire mold, relating to the field of tire vulcanization processing technology. The exhaust device comprises: a mandrel (200) and a sleeve shell (100) for sheathing the mandrel (200), an exhaust channel (101) being formed between the sleeve shell (100) and the mandrel (200); the mandrel (200) comprises a body (210), one end of the body (210) is connected to a head (230), and the other end of the body (210) is connected to an end piece (250), the end piece (250) is provided with a through groove (220), the through groove (220) penetrates the end piece (250), and one end of the through groove (220) facing away from the head (230) is closed; the end piece (250) is used for axially limiting the mandrel (200), and the end piece (250) is also used for assembling the sleeve shell (100) and the mandrel (200) by retracting and rebounding. The exhaust device alleviates the technical problems in the prior art that the accuracy of the closing stroke of the mandrel is low, and the mandrel has poor firmness and is easy to break, and can avoid blockage of the exhaust channel and formation of rubber hairs.

Inventors:

ZHANG WEI (CN)
WANG WANLI (CN)
DU PING (CN)
SUN RIWEN (CN)
LI JIAN (CN)
FENG LIXIN (CN)
ZANG YIZHAO (CN)

Application Number:

PCT/CN2019/110537

Publication Date:

December 17, 2020

Filing Date:

October 11, 2019

Export Citation:

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Assignee:

HIMILE MECHANICAL SCIENCE AND TECH SHANDONG CO LTD (CN)

International Classes:

B29C33/10; B29D30/06

Domestic Patent References:

WO2007139523A1

2007-12-06

Foreign References:

CN110027138A	2019-07-19
CN201633153U	2010-11-17
CN204942180U	2016-01-06
CN207874648U	2018-09-18
CN200920283550U	2009-12-17

Other References: