Two-half tire mold

Abstract

The invention discloses a two-half tire mold. The two-half tire mold comprises an upper mold body, an upper tire lip ring, an upper chuck seat, an upper chuck, a lower mold body, a lower tire lip ring, a lower chuck and a lower chuck seat, wherein the section of the lower tire lip ring is L-shaped; the lower tire lip ring is embedded with the lower mold body and connected with the lower mold bodythrough a bolt, and the section of the joint surface of the lower tire lip ring and the lower mold body is L-shaped; the lower chuck seat is embedded with the lower tire lip ring, the section of the joint surface of the lower chuck seat and the lower tire lip ring is L-shaped, and the lower tire lip ring is connected with the lower chuck seat through a bolt; the inner diameter of the lower chuck seat is smaller than the inner diameters of the lower mold body and the lower tire lip ring; the inner side of the lower chuck seat extends downwards to form an annular protrusion; a gap is formed between the annular protrusion and the lower tire lip ring; the lower chuck is installed on the lower chuck seat through a bolt; and the outer side of the upper end face of the lower chuck seat protrudesupwards to enclose a space for clamping the edge of a vulcanizing capsule with the outer side of the lower chuck. According to the structure of the two-half tire mold, the demoulding difficulty of a tire is reduced, the occurrence of glue overflowing is avoided, and the problem of secondary repair caused by mold design errors is solved.

Description

technical field [0001] The invention relates to the field of automobile tires, in particular to a two-half tire mold. Background technique [0002] In recent years, with the spread of the global ATV, UTV and other sports vehicles boom, the global demand for ATV, UTV tires is increasing. This type of tire is characterized by relatively isolated tire tread blocks, relatively deep tread depth, and part of the tread covers the sidewall to improve sidewall traction performance. The design features of this type of pattern increase the difficulty of demoulding after the tire is vulcanized by the two-half tire mold. [0003] Chinese utility model patent CN206306319U discloses a split type two halves tire mold, see figure 1 , the split type two halves of the tire mold comprises an upper half mold 1 and a lower half mold 2, and a mold cavity 3 for making tires is formed between the upper half mold 1 and the lower half mold 2. The upper mold half 1 includes an upper pattern ring 11 ...

AI Technical Summary

Problems solved by technology

[0005] For tires that are difficult to demould, the difficulty of tire demoulding can be reduced by adjusting the position of the interface between the capsule chuck and the mold body during mold design, but the more obvious the effect of capsule chuck-assisted demoulding, the easier it is The risk of glue overflow on the contact surface between the edge of the chuck and the mold body, the edge produced by overflow glue will affect the appearance of the tire

[0006] At the beginning of the design of some tire molds, the difficulty of tire demoulding cannot be accurately estimated, so the interface between the capsule chuck and the mold body cannot be reasonably designed

Design mistakes will lead to secondary repairs after the mold is used due to glue overflow or difficulty in demoulding, which not only reduces product quality and production efficiency, but also increases labor costs

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