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A kind of tire building bladder device and its preparation method

A tire molding and capsule technology, applied in the field of tire molding, can solve problems such as easy to break skin, insufficient bonding strength of rubber material and release cloth, and difference in the direction of bonding force between capsule rubber material and release cloth.

Active Publication Date: 2019-01-18
ZHONGCE RUBBER GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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  • A kind of tire building bladder device and its preparation method
  • A kind of tire building bladder device and its preparation method
  • A kind of tire building bladder device and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1 Capsule

[0031] Such as figure 1 As shown in a tire building bladder device, the bladder includes an integrally vulcanized outer bladder 1, a first reverse bladder 2 and a second reverse bladder 3, the first reverse bladder 2 and the second reverse bladder The capsule body 3 is respectively connected to the two ends of the outer capsule body 1 and folded back and turned up. The capsule body is composed of an outer rubber layer 11, a reinforcing skeleton layer 12 and an inner rubber layer 13, and an anti-adhesive cloth 14 is arranged on the outer surface of the outer capsule body 1, and the two ends of the anti-adhesive cloth 14 are turned up to the first turned-up bag The inner surface of the body 2 and the second turned-back capsule body 3 , the outer capsule body 1 and the turn-back area of ​​the first turned-back capsule body 2 are provided with a reinforcing glue layer 15 . The outer annular surface of the second anti-encapsulation body 3 is an oblique ...

Embodiment 2

[0032] Embodiment 2 Forming mold

[0033] Such as image 3 The molding die shown includes a first bladder 31 , a second bladder 32 , a pressure ring 33 and a back cover 34 . A connecting sleeve 35 is connected between the first bladder 31 and the second bladder 32 , and the connecting sleeve 35 is used for connecting the rotating shaft. Fastening screws 36 are arranged on the connecting sleeve 35 . The left end of the first bag tube 31 is provided with the first slit convex ring 37, and the right end is provided with the connecting convex ring 38, and the first bag tube 31 and the second bag tube 32 are connected to each other by connecting the convex ring 38, and the second bag tube 32 right-hand ends are provided with the second sub-mouth protruding ring 39, and described pressing ring 33 is fixedly arranged in the annular groove that the second sub-mouth protruding ring 39 forms, and the outer ring of pressing ring 33 and the inner part of the second sub-mouth protruding r...

Embodiment 3

[0034] Embodiment 3 vulcanization mold

[0035] Such as Figure 4 The vulcanization mold shown includes a first bladder 31 , a third bladder 42 , an external bladder 43 , a bottom cover 44 and an upper cover 45 . The first capsule 31 is the same as the first capsule 31 of Embodiment 1, the outer ring of the first capsule 31 is the first surface 46, the middle connection of the first capsule 31 is provided with a connecting sleeve 35, the connecting sleeve 35 is used to connect the rotating shaft, and a fastening screw 36 is arranged on the connecting sleeve 35 . The first sub-port protruding ring 37 on the left side of the first bag tube 31 is connected with the right side of the third bag tube 42, the outer ring of the third bag tube 42 is the second surface 47, and the right side end of the third bag tube 42 A first forming notch 48 is provided, and a first sub-mouth die 49 is formed between the third bladder 42 and the first sub-mouth protruding ring 37 . The left end of...

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Abstract

The invention relates to the field of tire molding, in particular to a tire molding capsule device and a preparation method thereof. The tire molding capsule device comprises a capsule body and a fixed base; the capsule body is arranged on the fixed base, and includes an outer capsule body, a first reverse capsule body and a second reverse capsule body integrally molded through vulcanization; the first reverse capsule body and the second reverse capsule body are respectively connected with the two ends of the outer capsule body, and are reversely folded; when the capsule body is molded through vulcanization, molds are bonded on the outer surfaces of the outer capsule body, the first reverse capsule body and the second reverse capsule body; the inner surfaces of the outer capsule body, the first reverse capsule body and the second reverse capsule body are inflated by 2-10 bar; the vulcanization time is 30-120 min; and the temperature is 120-180 DEG C. The surface levelness of the capsule body can be controlled and guaranteed by dint of the smoothness of a mold cover. The thickness uniformity of the capsule body is mainly influenced by the thickness fluctuation of a semi-finished film under the condition of stable mold cavity size and inflation inner pressure.

Description

technical field [0001] The invention relates to the field of tire building, in particular to a tire building bladder device and a preparation method thereof. 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 density...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29D30/26B29D30/06
CPCB29D30/0601B29D30/26B29D2030/2635
Inventor 何毅超陈金胜
Owner ZHONGCE RUBBER GRP CO LTD
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