SU1314558A1 - Method and apparatus for forming rubber-cord shells - Google Patents

Abstract

The invention relates to the manufacture of rubber products and is intended for the molding and vulcanization of rubber-cord shells with external boards in a detachable mold. The purpose of the invention is to improve the quality of the shells. For this purpose, the diaphragm 6 is fitted with an axially movable limiter 8. The limiter 8 is connected with the stem 7 of the control mechanism of the diaphragm. In the manufacture of the shell, its first bead 13 is first molded. Then, when lowering the upper part 1 and the stem 7 with the limiter 8 dried, they sequentially form the shell 12, starting from the molded bead 13. After that, the second bead 14 of the shell is molded. 2 sec. and 1 z. p. f-ly, 2 ill. (About 00 00

Description

The invention relates to the manufacture of rubber products and is intended for the molding and vulcanization of rubber shells with outer boards in a detachable mold. The aim of the invention is to improve the quality of the shells by reducing the mold connectors.

Fig. 1 shows the described device in the molding process, on the left - the molding of one of the sides, on the right - the molding of the entire 0 head; FIG. 2 shows the diaphragm assembly of the device, on the left — in the initial position, on the right — in the loaded one.

A device for making rubber-cord shells contains a cavity-forming movable

steam The upper part 1 continues to descend, compressing the springs 4, while simultaneously the stem 7 of the control mechanism associated with

5, the limiting cylinder 8, as well as sector 3, begins to form the skeleton 12 of the shell in the zone of the molded bead 13 at the height of the radially closed profile A part of

10 afragma B, adjacent to the board 13.

The remaining part of the diaphragm 6 under the action of the forming steam is pressed against the cylinder 8. In the course of the molding. when lowering the upper part 1 with the tori 3 and the limiting cylinder 8, the remaining part of the frame 12, adjacent to the board 14, is pushed and simultaneously pulled into the closed sectors 3 through the throat 10 seconds

the upper 1, the stationary lower 2 hours and 30 by the power of the contact of the 6th diaphragm and the middle element in the form of sectors 3, movably mounted together with the springs 4 on the rods 5, hinged on the fixed lower part 2, and the diaphragm node with interact with the lower part 2, the elastic diaphragm 6 and the stem 7 form the second bead (in this case, the diaphragm control mechanism. Concentric to the lower part 2 there is a limiting cylinder B, which is rigidly connected to the stem 7 by -30 crosshead 9. Sectors 3 have a connector vertically In the closed position / sectors 3, an annular neck 10 is formed between their lower end and opposite the upper end face of the limiting cylinder 8. When the device operates, the method of manufacturing rubber-casing shells is performed as follows On the diaphragm 6 pulled out by the stem 7 of the control mechanism 6, a shell preform 11 is installed, comprising a skeleton 12, an upper 13 and a lower 14 outer device, the beams (see FIG. 1). t sector 3, due to the rotation of the rods 5. Sectors 3 while the springs 4 are held in the upper polarity and form the neck 10 with the upper end of the restrictive cylinder. The upper part 1 is lowered, interacts with the sectors 3, which are pressed to the upper part 1 by springs 4, this is between the top 1 and sectors 3

with the preparation of the shell 11 occurs only at the height of the radially closed profile A. In the final phase of the closure of the mold sector 3

lower 14) shell 11, (see figure 2 on the right). Vulcanizing steam is then introduced into the cavity of diaphragm 6. At the end of the vulcanization process, the parameters of the diaphragm 6 are reset and the mold is opened in reverse order. The finished product is removed.

The initial formation of part B of the diaphragm at the height of the radially closed contour A ensures uniform distribution of the diaphragm in the shell (without folds). The method described allows molding the shells in molds C to be minimal. the number of connectors, which positively affects the quality of the finished shells, as well as the reliability of operation

Claims (3)

1. A method of forming rubber-casing shells, in which the pre-assembled casing of the shell is placed in a detachable mold, the sides of the workpiece are molded, 35 the molding process of the mold is molded 35 using an elastic diaphragm, and then t the vulcanization of the workpiece from the shell, which differs, so that, in order to ensure the quality of WA shell, first form the first side of the shell, then sequentially form the shell frame, starting from the molded side, then form the second side of the shell preform. 2. A device for forming rubber sheaths containing the forg-forming cavity, movable upper, fixed lower parts and middle element in the form of sectors mounted with springs on the rods, which are mounted by means of hinges on the fixed lower part, and the afragmenter unit connected with 145584 The diaphragm control mechanism stem, characterized in that, in order to improve the quality of the shell, it is provided with an axially movable diaphragm limiter installed concentrically with the latter connected with the diaphragm control stem. 3. The device according to claim 2, characterized in that the upper end of the stop of the diaphragm is located at the level of the lower end of the middle element, and the springs are placed between hinges and sectors. fi.G Compiled A, Teplyuk Editor L. Gerasimova Tehred A. Kravchuk Act 794 Circulation Subscription VNISh State Committee of the USSR for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., d. A / 5 jm-nn U- IC fr 1Г h --- - - .. Production and printing company, Uzhgorod, st. Project, 4 Thebes. 2 Proofreader G. Reshetnik