CN101259758A - Repairing method for radial tire toe extraction-crack - Google Patents

Abstract

The invention relates to a method for repairing the crack of the toe mouth of a radial ply tire, which comprises the following steps that: a. the broken chafer is peeled in the circumferential direction of the toe mouth to cut off the used steel wire inside; the used steel wire is dragged off from the toe mouth of the tire; b. the outer-wrapped steel cord of the tire body is peeled to expose an internal traveler in the tyre body; the naked parts of the internal and external sides of the wound are polished, coated with plasmagel and dried with air; c. the traveler is first wound with nylon fiber cloth strips and then a layer of sheet rubber and a layer of sheet rubber is paved on the polished part and at the inner side of the outer-wrapped steel cord; d. according to the structure of the original tire, the traveler is reversely wrapped and clamped tightly by the steel cord of the tire body; e. new chafer is used for uniformly wrapping and tightly compacting the whole wound from the interior to the exterior along the tire mouth; f. a whole-circle air bag is blown up to the corresponding pressure and is put into a whole-circle vulcanizer to be formed through vulcanization. Performances of the tire repaired in the method meet requirements for use, thus extending the service life of the tire and solving the problems that the crack of the toe mouth of the tire can not be repaired and the tire can be only thrown away as used tire.

Description

Repairing method for radial tire toe extraction-crack

Technical field:

The present invention relates to a kind of tyre repair method, especially a kind of repairing method for radial tire toe extraction-crack.

Background technology:

At present, can simply repair the back for some little wounds of full steel wire meridian heavy type tire continues to use, but for as quick-fried, quick-fried, the toe schistostoma of hat of reeling off raw silk from cocoons, shoulder prick big wounds such as disconnected, especially toe extraction-crack, severe patient is extracted carcass wirecord fabric anti-package point out, wire loop exposes, and prior art can't be repaired, and can only work as damaged tire and dispose.Both shorten tire service life, increased the cost of changing new tyre to the user again, and junked tire had been listed in " black pollution " source already because of contaminated environment.

Summary of the invention:

The technical problem to be solved in the present invention is: a kind of repairing method for radial tire toe extraction-crack is provided, it can be to repairing under the condition of the injury that toe extraction-crack, carcass wirecord fabric anti-package point are extracted out, wire loop exposes, make it to reach the continuation service condition, prolong tire service life.

The technical scheme that the present invention addresses the above problem employing is:

A kind of repairing method for radial tire toe extraction-crack, its step is as follows:

A, with cutter chafer that the tire toe place is damaged along the circumferential strip off of toe mouth, the two ends stripping is to slightly being longer than edge of wound, disconnects steel scrap silk in this chafer with cast-cutting saw slice, clamps this section chafer with bullet then, drags from tire toe;

B, with cutter the strip off of carcass anti-package wirecord fabric, expose wire loop in it, the inboard exposed part of wound exposed part and tire chamber, outwards enlarge 5～6cm along its periphery respectively and be milled to evenly with abrasive brush, coat rubber cement then, airing;

C, above-mentioned exposed wire loop is twined with the lopping of nylon fiber cloth earlier, at it outside, twines one deck raw stock again, afterwards above-mentioned polishing partly and anti-package wirecord fabric inboard respectively layer overlay play the raw stock of applying effect;

D, clamp the anti-package end points of carcass wirecord fabric with pliers, according to former tire structure, the above-mentioned wire loop that has twined raw stock is encased, folder is real;

E, get an area and be slightly less than above-mentioned polishing area, steel wire and arrange with the carcass steel wire and arrange consistent new chafer, equably whole wound is wrapped compacting along the tire mouth from inside to outside;

F, the above-mentioned tire that is repaired is loaded onto the full circle air bag, be inflated to corresponding air pressure, put into full circle vulcanizer sulfidization molding.

Compared with prior art, the invention solves full steel wire meridian heavy type tire tire toe extraction-crack can't repair, and can only work as the problem that damaged tire is disposed.Adopt the tire after the technology of the present invention is repaired, its every performance can match in excellence or beauty with new tyre, has improved the service life of this type tire.

Description of drawings:

Fig. 1 repairs schematic diagram for showing step a of the present invention.

Fig. 2 repairs schematic diagram for showing step b of the present invention, c, d.

Among the figure: carcass 1, chafer 2, carcass anti-package wirecord fabric 3, wire loop 4, nylon fiber cloth 5.

The specific embodiment:

Below in conjunction with drawings and Examples in detail the present invention is described in detail.

As shown in the figure, radial tire toe extraction-crack is repaired and is carried out as follows:

A, with cutter chafer 2 that the tire toe place is damaged along the circumferential strip off of toe mouth, the two ends stripping is to slightly being longer than edge of wound, disconnect steel scrap silk (noting not sawed-off during operation) in this chafer 2 with cast-cutting saw slice the wire loop in the toe mouth 4, clamp this section chafer 2 with bullet then, drag from tire toe.

B, with cutter 3 strip ofves of carcass anti-package wirecord fabric, expose wire loop 4 in it, the inboard exposed part of wound exposed part and tire chamber, outwards enlarge 5～6cm along its periphery respectively and be milled to evenly with abrasive brush, coat rubber cement then, airing.

C, above-mentioned exposed wire loop 4 is twined with 5 lopping of nylon fiber cloth earlier, at it outside, twines one deck raw stock again, afterwards above-mentioned polishing partly and anti-package wirecord fabric 3 inboards respectively layer overlay play the raw stock of applying effect.

D, clamp the anti-package end points of carcass wirecord fabric with pliers, according to former tire structure, the above-mentioned wire loop 4 that has twined raw stock is encased, folder is real.If sensation tire mouth place is thinner than former tire, can add the layer of steel wire cord again.

E, get an area and be slightly less than above-mentioned polishing area, steel wire and arrange with the carcass steel wire and arrange consistent new chafer, equably whole wound is wrapped compacting along the tire mouth from inside to outside;

F, the above-mentioned tire that is repaired is loaded onto the full circle air bag, be inflated to corresponding air pressure, put into full circle vulcanizer sulfidization molding.

Conditions of vulcanization in the present embodiment is: 120～130 ℃ of curing temperatures, cure time 4 hours.

Claims (2)

1, a kind of repairing method for radial tire toe extraction-crack, its step is as follows:

A, with cutter chafer that the tire toe place is damaged along the circumferential strip off of toe mouth, the two ends stripping is to slightly being longer than edge of wound, disconnects steel scrap silk in this chafer with cast-cutting saw slice, clamps this section chafer with bullet then, drags from tire toe;

B, with cutter the strip off of carcass anti-package wirecord fabric, expose wire loop in it, the inboard exposed part of wound exposed part and tire chamber, outwards enlarge 5～6cm along its periphery respectively and be milled to evenly with abrasive brush, coat rubber cement then, airing;

C, above-mentioned exposed wire loop is twined with the lopping of nylon fiber cloth earlier, at it outside, twines one deck raw stock again, afterwards above-mentioned polishing partly and anti-package wirecord fabric inboard respectively layer overlay play the raw stock of applying effect;

D, clamp the anti-package end points of carcass wirecord fabric with pliers, according to former tire structure, the above-mentioned wire loop that has twined raw stock is encased, folder is real;

E, get an area and be slightly less than above-mentioned polishing area, steel wire and arrange with the carcass steel wire and arrange consistent new chafer, equably whole wound is wrapped compacting along the tire mouth from inside to outside;

F, the above-mentioned tire that is repaired is loaded onto the full circle air bag, be inflated to corresponding air pressure, put into full circle vulcanizer sulfidization molding.

2, repairing method for radial tire toe extraction-crack according to claim 1 is characterized in that 120～130 ℃ of curing temperatures, cure time 4 hours.

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