SU1548077A1 - Method of assembling pneumatic tyre covers - Google Patents

Abstract

This invention relates to a process for assembling tires for pneumatic tires with a radial arrangement of cords in a carcass. The purpose of the invention is to expand the technological capabilities of the method and increase its productivity. To do this, the sides are first made in the form of a disk, the shape and dimensions of which in cross section correspond to the curvature of the molded frame. After duplicating the carcass with the breaker-tread bracelet and twisting its edges of the sidewall, they duplicate it with the molded carcass. 7 il.

Description

The invention relates to the technological process of assembling tires of pneumatic machines and can be used in the tire industry, in particular in the manufacture of tires with a radial arrangement of cords in a carcass (type "P).

The aim of the invention is to expand the technological capabilities of the method and increase its productivity.

FIG. 1-6 schematically depict successive stages of tire assembly; in fig. 7 - the device, a general view.

The method is carried out as follows.

First, an assembly cylindrical bracelet 2 (Fig. 1) of the tire is assembled on the assembly drum 1, including all the necessary parts. Then, the bracelet 2, by stretching the assembly drum 1 along the diameter (Fig. 2), joins the side wings 3 and 4 according to their inner diameter, which are mounted concentrically with the assembly drum 1 at a distance of expansion using the folding patterns 5 (Fig. 7 ).

Simultaneously with the assembly of the frame bracelet 2, the belt-tread bracelet 7, including the required number of parts, is assembled on the assembly drum 6.

The formed frame-wing bracelet on the assembly drum 1 is molded, i.e., it is attached to a toroidal shape (Fig. 3), and at the same time it mates with the means 8 installed concentricly and strictly along the center of the belt-tread bracelet 7.

Next, the bracelet 7 is duplicated with the molded frame bracelet 2 (FIG. 4), and the edges 9 and 10 of the frame bracelet 2 are wrapped around the side wings 3 and 4 and duplicated with the frame bracelet 2.

In accordance with the proposed method, the sidewalls are prefabricated in the form of a disk 11 (FIG. 5), the shape and dimensions of which in cross section correspond to the curvature of the molded frame. The disks 11 are guided by means of the means 12 and 13 on both sides to the molded frame. Thereafter, the means 12 and 13 are retracted, and the disks 11 are duplicated with the molded frame. The tire is removed by the means 8 from the assembly drum 1 and transferred to vulcanization. Next cycle

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ate

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about 1 1

repeats. The discs 11 can be made by pressing in the form and from powder compositions.

Claims (1)

Invention Formula The method of assembling tires of pneumatic tires, in which a frame bracelet is assembled on an assembly drum, side wings are installed, sidewalls are put together, a belt bracelet is assembled and, when the frame is molded, it is duplicated with a belt belt and turned over the edges of the frame bracelet on the side wings and molded part of the frame, characterized in that, in order to expand the technological capabilities of the method and increase its productivity, firstly the sides are made in the form of a disk, forms and dimensions of which correspond to the cross-sectional curvature of the molded frame, and then duplication of the frame with a belt-tread bracelet and twisting of its edges of the sidewall are duplicated with the molded frame. figure 1 four W h t / V th -I / FI.2 go rig.4figg. AT СРе.6