Curing bladder capable of curing tire with size being 30 inches

Abstract

A curing bladder capable of curing a tire with the size being 30 inches comprises an annular bladder body. The two ends of the bladder body are each provided with a bladder shoulder. Bladder necks are fixed to the outer ends of the bladder shoulders. The bladder shoulders and the bladder necks are all bent towards a central arc of the bladder body. A clamping edge is fixed to the outer ends of the bladder necks and is in a T shape on the section of a central line penetrating through the annular bladder body. The bottom end of the inverted T-shaped clamping edge faces the center of the bladder body, and the top end of the inverted T-shaped clamping edge is fixedly connected with the bladder necks. The bottom end of the inverted T-shaped clamping edge is 24 mm in height L2 and 13 mm in thickness L3. The distance L1 between the middles of the ladder body is 720 mm. The curing bladder meets the requirement for producing the tire with the specification being 275 / 25R30, the high stable performance and the uniform performance of the tire are improved, and meanwhile, the structure is table.

Description

technical field [0001] The invention relates to a vulcanization bladder capable of vulcanizing 30" tires, which belongs to the field of vulcanization bladders. Background technique [0002] The meaning of 275 / 25R30: 275 means the width of the tire, the widest part is about 275mm, 30 means the diameter of the rim is 30 inches, 25 means 25%, which is the ratio of the height of the tire above the rim to the width of the tire, That is, the tire section height / 275=25%, and the tire section height is 68.75mm. The distance from the outside of the steel rim to the ground is 68.75mm. The smaller the value, the flatter the tire. The international minimum is 20%. The 30" tire in the title refers to a tire with a rim diameter of 30 inches. [0003] At present, there is no vulcanizing bladder specially used to produce this specification in China. Usually, the vulcanizing bladder used to produce this specification tire has inaccurate specifications, and the edge cannot completely match ...

AI Technical Summary

Problems solved by technology

[0003] At present, there is no vulcanizing bladder specially used to produce this specification in China. Usually, the vulcanizing bladder used to produce this specification tire has inaccurate specifications, and the edge cannot completely match the tire. During the production process, the gas is not completely driven out. The inner side of the cavity is formed, or the unevenness of the tire is affected, and the tire cannot be dynamically balanced.

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