Tire mold

Abstract

The invention discloses a tire mold. The tire mold comprises a plurality of movable blocks, an upper tire side plate and a lower tire side plate, wherein the movable blocks cooperate with the upper tire side plate and the lower tire side plate to define a tire cavity, the acute-angled tip of contact between the junction of the movable blocks and the upper tire side plate and a green tire is arranged into an arc surface, and the acute-angled tip of contact between the junction of the movable blocks and the lower tire side plate and the green tire is arranged into an arc surface. In application,by arranging the acute-angled tip of contact between the junction of the movable blocks and the upper tire side plate or lower tire side plate and the green tire into the arc surface, it can be avoided that the edge of the upper tire side plate or lower tire side plate directly penetrates into the green tire during mold closing, the probability of rubber edge generation after tire vulcanization is reduced, and the purposes of saving rubber, improving production efficiency and reduce manufacturing costs can be easily achieved.

Description

technical field [0001] The invention relates to the technical field of tire manufacturing equipment, in particular to a tire mold. Background technique [0002] Such as figure 1 As shown, the current tire mold generally uses the movable block 01, the upper sidewall plate 02 and the lower sidewall plate 03 to form a tire cavity, and the mold joint surface between the movable block 01 and the upper sidewall plate 02 or the lower sidewall plate 03 At the edge of the upper tire side plate 02 or the lower tire side plate 03 is sharp, it is easy to pierce the raw tire 04 during vulcanization and mold clamping, such as figure 2 and image 3 As shown, the rubber in the mold is caused, and the rubber bead is produced in the tire, or the mold contour interferes with the outer contour of the raw tire 03 when the mold is closed, resulting in the rubber in the mold, and the bead 06 is produced in the tire 05. [0003] In view of the edge rubber phenomenon after tire vulcanization, at...

AI Technical Summary

Problems solved by technology

[0002] like figure 1 As shown, the current tire mold generally uses the movable block 01, the upper sidewall plate 02 and the lower sidewall plate 03 to form a tire cavity, and the mold joint surface between the movable block 01 and the upper sidewall plate 02 or the lower sidewall plate 03 At the edge of the upper tire side plate 02 or the lower tire side plate 03 is sharp, it is easy to pierce the raw tire 04 during vulcanization and mold clamping, such as figure 2 and image 3 As shown, it will lead to the rubber in the mold, and the rubber edge will be produced in the tire, or the mold contour will interfere with the outer contour of the raw tire 03 when the mold is closed, resulting in the rubber in the mold, and the rubber edge will be produced in the tire 05.

[0003] In view of the edge rubber phenomenon after tire vulcanization, at present, the edge rubber can only be formed by making edge rubber grooves, which can be quickly removed in the later stage. Delay production progress, increase manufacturing costs and other issues

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