| 摘要 |
FIELD: rubber industry; production of the elastomeric products by casting under pressure. ^ SUBSTANCE: the invention is pertaining to the moulds for production of the elastomeric products by casting under pressure, in particular, for production of the rubber covers for the stators of the screw type gyrator hydromachines. The mould contains the core (1) with the screw teeth (2), the inlet channel (3) and the casting channels (4) made on one side of the core (1), two centering bushes (5) and (6) mounted on the edges of the core, and two nuts (9) and (10) mounted on threaded tails on the core edges, and also it includes the hollow body (13)of the being produced stator mounted on the centering bushes concentrically to the core (1) forming with the bushes and the core (1) the molding cavity (14). The centering bush arranged on the side of the inlet channel and the casting channels of the core, is made with the casting spinnerets (15) being the prolongation of the casting channels of the core. The centering bush has two longitudinal through grooves, each of which is connected with the circular dead-end grooves, and the core has two mounted fixers , at the contact of the walls of the circular dead-end grooves with which the centering bush through the casting spinnerets joins or disconnects the casting channels of the core with the molding cavity. The technical result of the invention is provision of the uniform density of the elastomeric cover, the increase of its physical-mechanical characteristics and the increased output of the ready products. ^ EFFECT: the invention ensures the uniform density of the elastomeric cover, the increased its physical-mechanical characteristics and the increased output of the ready products. ^ 4 cl, 4 dwg |
