Pressure casting tool, useful for molding workpiece, comprises ejector element arranged in support part to remove workpiece form mold cavity, and sealing element liquid-tightly sealing moderate temperature cavity relative to aperture

摘要

The pressure casting tool (1) has a mold cavity (2) for defining a mask (3) that is connected with a base body (4). A temperature controller (5) is arranged between the base body and the mask. A moderate temperature cavity controls the temperature of a workpiece. The mask partially limits a support part on the base body. An ejector element is arranged in the support part to remove the workpiece form the mold cavity. An aperture is arranged in the support part and in a portion of the base body. A sealing element liquid-tightly seals the moderate temperature cavity relative to the aperture. The pressure casting tool (1) comprises a mold cavity (2) for defining a mask (3) that is connected with a base body (4). A temperature controller (5) is arranged between the base body and the mask. A moderate temperature cavity controls the temperature of the workpiece. The mask partially limits a support part on the base body. An ejector element is arranged in the support part to remove the workpiece form the mold cavity, and is movable into the mask. An aperture is arranged in the support part and in a portion of the base body. A sealing element liquid-tightly seals the moderate temperature cavity relative to the aperture, and encloses the ejector element. The support part is connected with the mask and extends in a direction of the base body. The sealing element is arranged in the base body, and faces an end portion of the support part between opposed surfaces of the support part, where the sealing element is designed as an O-ring, or as a closed rotating sealing cord. The mask and the base body are clamped together using a fixing member that is arranged in a region of the support part. The fixing member is designed as a hollow screw, and the ejector element is arranged in an inner portion of the hollow screw. An end portion of the support part is engaged in the base body using a recess. The sealing element is arranged in the range of the recess. An end face of the end portion of the support part and a base surface of the recess are arranged in the base body perpendicular to a longitudinal axis of the ejector element, where the end portion of the support part and the recess are conic formed. The end portion of the support part and the recess of the base body have supporting surfaces that include a recessed sealing surfaces in a direction of the mold cavity, where the supporting surfaces are supported against one another. A defined gap is formed between the sealing surfaces.