RU2607663C1 - Rubber-cord casings assembly method - Google Patents

Abstract

FIELD: manufacturing technology.

SUBSTANCE: invention relates to production of rubber-cord casings, namely to methods of balloon type rubber-cord casings with clincher beads assembly. According to method, forming rubber-cord casing, uniformly stretching casing edges, seating bead rings, forming rubber-cord casing beads. Rubber-cord casing edges are uniformly stretched in cone-shaped manner. In side zones on evenly stretched casing cone-shaped edges outer diameter non-stretchable belt material is wound layer-by-layer, thereby forming bead rings. Non-stretchable belt material layers are duplicated. Wrapping casing edges onto bead rings. Non-stretchable belt material is made in form of rubber-cord belt with number of threads in row from 3 to 12 threads.

EFFECT: technical result of disclosed technical solution is creation of rubber-cord casings assembly method, increasing range of produced balloon type rubber-cord casings with clincher beads.

1 cl, 7 dwg

Description

The invention relates to the production of rubber-cord shells, and in particular to methods of assembling rubber-cord shells of a balloon type with clincher sides.

A known method (patent No. 683785 GB, IPC B29D 30/29, publ. 03.12.1952), in which the required number of layers of cord is applied to the drum, then the cord bracelet is expanded to a diameter exceeding the diameter of the bead ring. On the shoulders formed on both sides are led side rings, which are glued to the cord surrounding the shoulders of the bracelet. Alternately wrap the edges of the cord on the glued rings, duplicate the edges of the cord, impose a tread, duplicate it with the frame.

The disadvantage of this method is that the known method does not provide for the assembly of rubber-cord shells of the balloon type with clincher sides.

There is a known (A.S. No. 735426, IPC V29D 17/00, publ. 25.05.80, bull. No. 19) method of assembling rubber-cord shells, which consist in the fact that they form a rubber-cord frame, uniformly stretch the free edges of the frame, put on the side rings, make out the sides of the shell.

The disadvantage of this method is that the known method does not ensure the inversion of the edges of the frame around the side rings on the outer diameter of the frame, which does not allow the assembly of rubber-cord shells of the balloon type of different types, including small diameter with clincher sides, and, as a result, reduces the range of manufactured rubber-cord shells of the balloon type.

The technical result of the claimed technical solution is to create a method of assembling rubber-cord shells that increases the range of manufactured rubber-cord shells of the balloon type with clincher sides.

The technical result is achieved by the fact that in the outer zones on the outer diameter of the evenly stretched conical edges of the frame, inextensible tape material is wound in layers, the side rings are formed in this way, layers of inextensible tape material are duplicated, then the edges of the frame are wrapped on the side rings, while the inextensible tape material is made into the form of rubber-cord tape having from 3 to 12 threads in a row.

The essence of the proposed method of rubber-cord shells is illustrated by the following drawings:

FIG. 1 - rubber-cord frame on the assembly drum;

FIG. 2 - evenly stretched edges of the rubber-cord frame;

FIG. 3 - the formation of side rings inextensible tape material;

FIG. 4 - duplication of layers of inextensible tape material;

FIG. 5 - inversion of the edges of the frame on the side rings;

FIG. 6 - overlay of the coating layer;

FIG. 7 - section of rubber-cord tape.

The claimed method of assembling rubber-cord shells is as follows.

On the Assembly drum 1 impose the required number of layers of the cord and form a rubber-cord frame 2 (Fig. 1). The edges 3 and 4 of the rubber-cord frame 2 are uniformly conically stretched (Fig. 2). Inextensible tape material 5 is wound around the outer diameter of the uniformly conically-shaped edges 3 and 4, whereby the side rings 6 and 7 are formed (Fig. 3). Duplicate layers of inextensible tape material, for example, by additionally expanding the edges of the frame 3 and 4 by sectors 8 of the drum 1 (Fig. 4). Then wrap the edges 3 and 4 of the rubber-cord frame 2 on the side rings 6 and 7 (Fig. 5). Next impose a coating layer 9 (Fig. 6). Side rings 6 and 7 formed by inextensible tape material 5, made in the form of rubber-cord tape, in which from 3 to 12 threads 10 in a row depending on the bead geometry (Fig. 7), while the width of the inextensible rubber-cord tape, depending on the number of threads in a row it allows you to collect rubber-cord shells of a balloon type with different sizes of clincher boards.

Thus, the inventive method of assembling rubber-cord shells increases the range of manufactured rubber-cord shells of the balloon type with clincher sides.

Claims (1)

 The method of assembling rubber-cord shells, which consists in the fact that they form a rubber-cord frame, uniformly stretch the edges of the frame, plant side rings, form the sides of the rubber-cord shell, characterized in that the edges of the rubber-cord frame are stretched uniformly conically, in the side zones, the outer diameter of the uniformly stretched conical edges of the frame inextensible tape material is wound in layers, whereby side rings are formed, layers of inextensible tape material are duplicated, then achivayut carcass bead rings on edge, with inextensible belt material is prepared in the form of rubber-tape number of filaments of 3 to 12 strands in a row.

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