CN203331751U

CN203331751U - Diagonal tire bead structure

Info

Publication number: CN203331751U
Application number: CN2013200739122U
Authority: CN
Inventors: 王�锋; 宋肖英; 隋广震; 隋培兴; 任廷春
Original assignee: Shandong Linglong Tyre Co Ltd
Current assignee: Shandong Linglong Tyre Co Ltd
Priority date: 2013-02-17
Filing date: 2013-02-17
Publication date: 2013-12-11
Anticipated expiration: 2023-02-17

Abstract

The utility model discloses a bias tire bead structure and anti-package shaping method of matrix ply, the utility model discloses bias tire bead structure includes steel ring, apex, encloses the first anti-package ply of establishing outside steel ring and apex, encloses the positive package ply of establishing outside first anti-package ply and encloses the anti-package ply of establishing outside positive package ply. The utility model discloses the phenomenon of cut off the matrix cord when repairing after the tire bead structure can avoid the export of multistage tire circle to can solve because of gaseous matrix cord infiltration from the child toe position leads to the side wall to swell the problem.

Description

The bias tire bead structure

Technical field

The utility model relates to a kind of tire bead and manufacture method thereof, relates in particular to a kind of bias tire bead structure.

Background technology

Usually adopt bias tire in the construction machinery and equipment that operating condition is harsh at present, load carrying ability is large and production time is long.During the above bias tire moulding of many, the two steel rings of the number of plies, generally all adopt the sleeve method to carry out moulding, and each bead coil to carry out anti-package.Because the bias tire curtain cloth layer more than two steel rings is more, each steel ring all adopts outer cord positive closure, therefore the positive closure termination of cord all concentrates on tire toe place, especially on wide in positive closure bandage design or positive closure bandage partially the time, very easily occur that cord and tire toe position all go out the situation on limit, when being placed under repair, the tire toe portion will inevitably cut off body cord, in addition, even if the tire toe portion does not go out limit, this bias tire is the also as easy as rolling off a log cord from tire toe termination seepage of the gas in carcass in use, and because cord is concentrated and to be deposited in the steel ring bottom and to cause steel ring bottom carcass plies too much, cause the steel ring unbalance stress, more easily shorten the service life of bias tire.

The utility model content

A technical matters to be solved in the utility model is to provide a kind of bias tire bead structure of avoiding cutting tire toe place's cord and preventing the tyre cavity gas leakage.

The utility model is achieved by the following technical solution: the utility model bias tire bead structure, comprise at least one steel ring, triangle rubber, be around in the first anti-package carcass plies outside steel ring and triangle rubber, be around in the positive closure carcass plies outside the first anti-package carcass plies and be around in the anti-package carcass plies outside the positive closure carcass plies.

Preferably, when steel ring has when a plurality of, each steel ring is arranged with respectively the anti-package carcass plies, and the positive closure carcass plies coats the bottom of described anti-package carcass plies.

Preferably, when steel ring is two, described anti-package carcass plies comprises the first anti-package carcass plies and the second carcass plies, and the positive closure carcass plies coats the bottom of first, second carcass plies.

Another technical matters to be solved in the utility model is to provide a kind of carcass ply reverse wrap molding method that the bias tire bead structure that cuts tire toe place's cord and prevent the tyre cavity gas leakage is avoided in manufacture.

Another technical matters of the present utility model is achieved by the following technical solution: the carcass ply reverse wrap molding method of the utility model bias tire bead structure, comprise the steps: step 1, strut former, start forming machine, body cord and inside liner are enclosed within on moulding stick and former as the 1# bandage, adjusting the moulding stick position makes bandage import head, behind the centering center, extract moulding stick out, first bandage is flattened, with the positive closure device, body cord is pressed into to the head inner chamber, needn't be pulled limit; Step 2, according to this 2# bandage is put, complete the positive package operation of bandage, triangle rubber is placed at two ends, buckles steel ring compacting again, by the compacting of 2# bandage anti-package, forms the anti-package carcass plies; Step 3, complete anti-package after, put last bandage, complete positive package operation, form the positive closure carcass plies; Step 4, finally by the 1# bandage anti-package in the head inner chamber, wrap all bandages, and form outer anti-package curtain layer; Step 5, add tire toe pad glue, complete the making of tyre bead.

Preferably, also comprise step 2a between step 2,3, go up successively bandage, buckle steel ring, by cord anti-package compacting anti-package carcass plies.

Compared with prior art, the utility model 1# bandage is not for the anti-package bead coil, but wraps all bandages, after the 1# difference is enclosed within former, after positive closure bandage compacting by the time, then is pulled the limit compacting.Adopt such body ply reverse wrap molding method can avoid multi-layer wheel tyre bead mouth to go out behind limit the phenomenon of while placing under repair, cutting off body cord, then can solve and infiltrate and cause sidewall bulge problem from the body cord of tire toe position because of gas.

The accompanying drawing explanation

Fig. 1 is the bead structure schematic diagram of the utility model the first embodiment bias tire.

Fig. 2 is the bead structure schematic diagram of the utility model the second embodiment bias tire.

The specific embodiment

Please refer to the first embodiment bias tire bead structure of the utility model shown in Fig. 1, comprise steel ring 19, contiguous steel ring 19 triangle rubber 20, be around in steel ring 11 and outer the first anti-package carcass plies 12 of triangle rubber 20, the tire toe pad glue 11 that is positioned at the outer positive closure carcass plies 17 of the first anti-package carcass plies 12, is positioned at the outer outer anti-package carcass plies 18 of positive closure carcass plies 17 and is located at above-mentioned which floor carcass plies below.

Please refer to the second embodiment bias tire bead structure of the utility model shown in Fig. 2, comprise two steel rings 19, be respectively adjacent to two triangle rubbers 20 of two steel rings 19, coat respectively the first anti-package carcass plies 12, the second anti-package carcass plies 13 of two steel rings 19 and triangle rubber 20, the positive closure carcass plies 17 of while first, second anti-package carcass plies 12,13 bottoms of forward bag, the tire toe pad glue 11 that oppositely coats the outer anti-package carcass plies 18 of positive closure carcass plies 17 and be located at above-mentioned which floor carcass plies below.

Certainly, the bead structure of the utility model bias tire is not limited only to the above-mentioned structure that one or two steel rings are only arranged, but comprise the bead structure with three or three above steel rings, each steel ring all has the anti-package carcass plies, and encased the bottom of all anti-package carcass pliess by the positive closure carcass plies, carry out again the anti-package compacting after compacting, can avoid like this anti-package cord end to pile up in tire toe position, cause tire toe position to go out limit, thereby cause the sidewall bulge at minimizing tyre cavity gas from the body cord seepage of tire toe position, and can not cut off cord when repairing the tire toe yet.

The carcass ply reverse wrap molding method of the utility model bias tire bead structure be take only has a steel ring to describe as example:

Step 1, strut former, start forming machine, body cord and inside liner are enclosed within on moulding stick and former as the 1# bandage, adjusting the moulding stick position makes bandage import head, behind the centering center, extract moulding stick out, first bandage is flattened, with the positive closure device, body cord is pressed into to the head inner chamber, needn't be pulled limit;

Step 2, according to this 2# bandage is put, complete the positive package operation of bandage, triangle rubber 20 is placed at two ends, buckles steel ring 19 compacting again, by the compacting of 2# bandage anti-package, forms the first anti-package carcass plies 12;

Step 3, complete anti-package after, put last bandage, complete positive package operation, form positive closure carcass plies 17;

Step 4, finally by the 1# bandage anti-package in the head inner chamber, wrap all bandages, and form outer anti-package curtain layer 18;

Step 5, add tire toe pad glue 11, complete the making of tyre bead.

When bias tire comprises two or more steel rings 19, increase step 2a between the 2nd, 3 steps, go up successively bandage, buckle steel ring, by cord anti-package compacting anti-package carcass plies.

The utility model bead structure is by first anti-package carcass plies, positive closure carcass plies again, anti-package carcass plies again, realization is by the carcass plies compacting, the positive closure plies ends can not separate limit at the tire toe, thereby avoid multi-layer wheel tyre bead mouth to go out behind limit the phenomenon of while placing under repair, cutting off body cord, then can solve and infiltrate and cause sidewall bulge problem from the body cord of tire toe position because of gas.

Described above is better embodiment of the present utility model; only that the example effect does not limit protection domain of the present utility model, in the distortion that does not depart from spirit of the present utility model, revise and all to fall in the protection domain that the utility model claim limits.

Claims

1. a bias tire bead structure, comprise at least one steel ring, triangle rubber, be around in the first anti-package carcass plies outside steel ring and triangle rubber, be characterised in that altogether: also comprise and be around in the positive closure carcass plies outside the first anti-package carcass plies and be around in the anti-package carcass plies outside the positive closure carcass plies.

2. bias tire bead structure as claimed in claim 1 is characterized in that: when steel ring has when a plurality of, each steel ring is arranged with respectively the anti-package carcass plies, and described positive closure carcass plies coats the bottom of described anti-package carcass plies.

3. bias tire bead structure as claimed in claim 2, it is characterized in that: when steel ring is two, described anti-package carcass plies comprises the first anti-package carcass plies and the second carcass plies, described positive closure carcass plies coats the bottom of described first, second carcass plies.