A capsule vulcanization mold and vulcanization method for a tire building bladder

Abstract

The invention relates to the field of tire building, in particular to a vulcanizing die and a vulcanizing method for a bladder body of a tire building bladder. The vulcanizing die for the bladder body of the tire building bladder is characterized by comprising a first bladder tube, a third bladder tube, an external bladder tube, a bottom cover and an upper cover; an outer ring of the first bladder tube is a first surface; a rotating shaft is arranged in the middle of the first bladder tube in a connecting way; an outer ring of the third bladder tube is a second surface; the bottom cover is fixedly connected with the third bladder tube; a third surface is arranged on an outer ring of the bottom cover; the external bladder tube is arranged on the outer ring; an inner ring of the external bladder tube is a fourth surface; the first surface, the second surface, the third surface and the fourth surface form a die cavity of the bladder body; the external bladder tube and the bottom cover are matched to close the left side end of the die cavity; the right side end of the die cavity is closed by the upper cover; and an inflating channel is radially arranged on the third bladder tube and is connected to the die cavity. By using the bladder body of the vulcanizing die disclosed by the invention, the density of sizing materials is improved, and the bonding strength of the sizing materials and anti-sticking fabric is greatly improved.

Description

technical field [0001] The invention relates to the field of tire molding, in particular to a tire molding bladder vulcanization mold and a vulcanization method. Background technique [0002] Chinese utility model patent (application number: CN201420214567.4, application date: 2014.04.30) discloses a tire building capsule including a capsule body and a fixing seat, the capsule body is arranged on the fixing seat, the capsule body includes an outer capsule body, a first turn-up The capsule body and the second anti-encapsulation body, the first anti-encapsulation body and the second anti-encapsulation body are respectively connected to the two ends of the outer capsule body and turned back. This kind of tire building capsule body adopts a straight cylindrical structure, covered with film and anti-adhesive cloth in sequence, and fixed with water-wrapped cloth (also called salt bar). The rubber materials are combined, and the stability of this process depends on the winding den...

AI Technical Summary

Problems solved by technology

The difference in winding density and angle will cause the difference in the direction of the bonding force between the capsule rubber and the anti-adhesive cloth; the tightness and uniformity of the winding will cause the difference in the bonding force between the capsule and the anti-adhesive cloth

In the case of fully manual operation, none of the above four elements can be guaranteed

The result of manual mass production is that the quality of the capsule will inevitably fluctuate, and the tightening force produced by the vulcanization of the water-wrapped cloth is insufficient, resulting in insufficient bonding strength between the rubber material and the anti-sticking cloth, resulting in early damage such as easy skin breakage

In addition, when the finished capsule is installed on the tooling, the outer capsule and the first reverse capsule need to be folded once. The characteristics of the rubber product will produce arching under bending, which will inevitably cause a big butt problem.

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