SU1657393A1 - Device for transfer molding of rubber mechanical articles - Google Patents

Abstract

The invention relates to the manufacture of rubber technical products and is intended for the manufacture of them by injection molding. The purpose of the invention is to expand the technological capabilities of the device by enabling the manufacture of a wide range of products. For this, the mold 8 with shaping protrusions is mounted on the upper heating plate 3, and the mold half 7 with shaping slots on the lower heating plate 4 The molding plate 12 is mounted on horizontal guides returnable

Description

The invention relates to the manufacture of rubber technical products and is intended for their manufacture by the method of injection molding.

The chain of the invention is the expansion of the technological capabilities of the device by enabling the manufacture of a wide range of products.

Fig. 1 shows the proposed device in the position of filling the molding sockets with a rubber compound; figure 2 is the same in the position of vulcanization; Fig. 3 is the same after filling the molding nests with a rubber mixture.

The injection molding device comprises a press unit 1 with a plunger 2 and heating plates 3 and 4, a loading chamber 5 with a piston 6 and a molding press.

The casting mold is formed by a floor using the shapes 7 and 8. The half-form 7 has form-forming sockets 9, and the half-form 8 has shaping protrusions 10. The half-shapes 7 and 8 are set respectively nli1,) 4 and 3 of the press unit 1.

On the guides 11 with the possibility of reciprocating movement in the perpendicular to the central axis of the press unit 1 direction and the ability to interact with the half-molds 7 and 8, the casting plate 12 is installed. 8. Nz of the opposite working surface of the plate 12 are made grooves 15 for the entry of the forming protrusions 10 of the mold half 8. The plate 12 is mounted on the guides with the possibility of vertical movement.

The device works as follows.

Under the action of the plunger 2, the molds 7 and 8 are closed by an injection molding plate 12 between them (Fig. 1). By means of the piston 6, the rubber mixture 16 is squeezed out of the loading chamber 5 and through the sprues 13 of the injection molding plate 12 enters the shaping nests 9 of the mold half 7. After filling them with the rubber mixture, the mold is opened, i.e. together with the plunger 2, the heating plate 3 and the floor are raised

the uniform 8, and the casting plate 12 moves from vertically upwards and is intermediate between the half-molds 7 and 8. Next, the casting plate 12 is outputted along

guides 11 from the area of the pressing unit (Fig. 3). and the press mold 1 interlocks the molds 7 and 8 (Fig. 2) and the vulcanization is performed. At the end of the vulcanization, the mold is opened and the finished products 17 are removed from the bottom half-mold. The casting plate is then returned to the working area of the press unit and the process is repeated.

Install mold half molds on

hot plates of the press unit shortens the time of vulcanization and improves the quality of manufactured products, and the location of the molding nests in the bottom half-mold (below the casting plate)

allows you to make on the proposed device almost the entire range of rubber products, including reinforced ones.

The presence of one movable plate reduces the intensity and labor costs for the manufacture of the mechanism. The movement of the casting plate and the absence of the extended plate in the service area create ease of operation.

Claims (2)

Claim 1. Injection molding device for rubber technical products containing press unit, loading chamber, injection mold having half mold with formative i incorpores and half mold with shaping protrusions, and mounted on horizontal guides with the possibility of anti-axial movement in a direction perpendicular to the central axis of the press unit, and interacting with mold casting half mold with molding channels with runner channels and working surface on the profile of the working surface of the mold with forming protrusions is different. that, in order to expand the technological capabilities of the device, the mold with forming forks is mounted on the upper heating plate of the press unit, the mold with formative nests are installed on the lower heating line of the press unit, and the casting plate is installed on horizontal rails with the possibility of vertical movement 2. The device is pop.1, characterized in that the opposite working surface of the casting plate is made with slots for setting the forming protrusions of the half-form. 1 eleven AND junu shchtstsi ////////// A and J 77 7 / / / / / / / „/ / l / eight 72 shchtstsi ////BUT and