Injection press for molding pieces of elastomer

An injection press for molding pieces of elastomer and comprising:

• first and second substantially parallel platens slidably displaceable relative to each other along a central axis between a closed position in which said first and second platens are relatively close to each other and an open position in which said first and second platens are further apart from each other;
• a molding device comprising at least one mold, itself comprising two mold portions that are movable relative to each other along said central axis between a closed position in which said two mold portions are in closed contact to enable at least one elastomer piece to be molded, and an open position enabling said elastomer piece to the unmolded, said molding device being placed between the first and second platens;
• an injector device adapted to inject elastomer into the mold;
• at least one heater device adapted to heat the elastomer contained in the mold in order to vulcanize it;
• and
• a control device comprising at least one jack adapted to move the first and second platens between their open and closed positions;
• wherein the molding device includes a turret which is rotated by a shaft disposed on said central axis and which carries a number n not less than 2 of independent molds, the molds being movable by rotation of the turret between a number p of fixed stations, where p is not less than n, and these stations include at least one injection station and an unmolding station;
• and wherein, when they are in the closed position, the first and second platens are adapted to clamp against each other in the closed position the two mold portions belonging to each mold that is in a station other than the unmolding station, while enabling a mold that is in the unmolding station to be opened.