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A kind of manufacturing process of reverse-wrapped capsule

A production process and capsule technology, which is applied in the field of reverse capsule production technology, can solve the problems of small peeling force of the capsule body, few times of use, poor anti-sticking effect, etc. The effect of easy tire unloading

Active Publication Date: 2021-10-12
GITI RADIAL TIRE (ANHUI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the anti-adhesive layer of reverse-encapsulated capsules mainly has two forms: single-sided rubber-coated cord fabric and high-elastic fabric. Peeling, aging, breaking fast, less times of use, and high elastic cloth has poor form strength, small peeling force from the capsule, less times of use, etc.

Method used

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  • A kind of manufacturing process of reverse-wrapped capsule
  • A kind of manufacturing process of reverse-wrapped capsule

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Manufacture of the capsule body: The capsule body is made by laminating the three-layer film and the two-layer cord sequentially using the existing technology, wherein the film adopts a low-modulus, tear-resistant formula with a thickness of 1.2mm The film is made of 1260D / 2 cord with a thickness of 1.0mm; a part of the film as the outermost layer of the capsule body is cut before lamination, and the cut part corresponds to the position of the capsule body and the tire mouth. contact part;

[0033] (2) Mucilage preparation: mix the rubber material, resorcinol formaldehyde resin and gasoline by mass ratio 1:0.1:4 to obtain the required glue material, wherein the rubber material is prepared according to the following formula Components: in parts by weight, including the following components, 100 parts by weight of rubber, 2 parts by weight of zinc oxide, 2.5 parts by weight of anti-aging agent, 10 parts by weight of naphthenic oil, 3 parts by weight of sulfur and 1 pa...

Embodiment 2

[0041] The production process is the same as in Example 1, the difference being: (2) Mucilage preparation: mix the rubber material, resorcinol formaldehyde resin and gasoline with a mass ratio of 1:0.1:3.3; (4) Adhesive film production: where The mass percent of resorcinol formaldehyde resin is 1%; (6) vulcanization: the vulcanization process is: vulcanization temperature 148 ℃, vulcanization pressure is 0.5Mpa, vulcanization time is 55min, after vulcanization is completed, remove the cord fabric and nylon pad And the grid iron sheet, and repair the rubber edge, that is, the production of the reverse-packed capsule is completed.

Embodiment 3

[0043]The production process is the same as that of Example 1, the difference is: (2) preparation of mucilage: mixing rubber material, resorcinol formaldehyde resin and gasoline with a mass ratio of 1:0.1:3.6; (4) production of adhesive film: wherein The mass percentage of resorcinol formaldehyde resin is 2%; (6) vulcanization: the vulcanization process is: vulcanization temperature 142 ℃, vulcanization pressure is 0.4Mpa, vulcanization time is 65min, after vulcanization is completed, remove the cord fabric, nylon pad And the grid iron sheet, and repair the rubber edge, that is, the production of the reverse-packed capsule is completed.

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Abstract

The invention discloses a manufacturing process of a reverse-wrapped capsule, which comprises the following steps of making a capsule body by laminating a film and a cord, cutting a part of the outermost film before laminating, and the cut part corresponds to the capsule body The part that is in contact with the rim of the tire; paste the adhesive film on the cut part, and paste the anti-adhesive layer on the adhesive film, wherein the anti-adhesive layer is a PET elastic band covered with glue on the rough surface; in the capsule The surface of the main body corresponds to the position in contact with the sidewall of the tire, and the grid iron sheet covered with rubber is pasted; after the PET elastic band and the grid iron sheet are laminated, vulcanization is carried out, and the rubber edge is repaired after vulcanization, that is, the production of the turn-up capsule is completed . The reverse-wrapped capsule prepared by the present invention adopts a PET elastic band in the preparation process, wherein the PET elastic band is in contact with the rim of the tire, and the smooth surface of the PET elastic band is used to solve the problem of anti-sticking, which is convenient for unloading the tire and prevents the phenomenon of sticking to the rim when the tire is unloaded.

Description

technical field [0001] The invention belongs to the technical field of tires, and in particular relates to a manufacturing process of a turn-up capsule. Background technique [0002] At present, in the production of all-steel wire radial tires, the machine drums used on the single-stage forming machine are divided into two types: mechanical forming drums and capsule forming drums. The circumferential stretch of the sidewall is uniform and the appearance is flat, which is more conducive to the quality of the tire and is favored by tire manufacturers; while the turn-up capsule used on the capsule forming drum is uniformly expanded under a certain air pressure to realize the return of the carcass cord And the turn-up of the sidewall, through extrusion to achieve no delamination and no air bubbles at the tire mouth. [0003] At present, the anti-adhesive layer of reverse-encapsulated capsules mainly has two forms: single-sided rubber-coated cord fabric and high-elastic fabric. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29D30/26
CPCB29D30/26B29D2030/2614
Inventor 叶俊唐桂影许灿徐宝羚
Owner GITI RADIAL TIRE (ANHUI) CO LTD