Patent ID: 7018189

Claim:
A mold closing device of an injection molding machine for producing plastic parts made of two or more plastic components, comprising: two outer mold mounting plates supporting mold halves; a central mold carrier element arranged between the two outer mold mounting plates, the central mold carrier element including two or four opposing mold mounting areas arranged in pairs for affixing two or four corresponding mold halves, the central mold carrier element further including a turning device capable of closing each of the mold halves of the central mold carrier element against the mold halves of the outer mold mounting plates with the aid of a drive mechanism and a mold pressure unit; a supporting frame supporting the turning device; a machine frame fixedly connected to the supporting frame and displaceably supporting the outer mold mounting plates; and columns having two ends and extending through the supporting frame of the central mold carrier element and connecting the outer mold mounting plates to one another, wherein one end of each column is fixedly secured on one of the outer mold mounting plates and the other end of the column includes a piston, which is reversibly guided in a cylinder unit that is connected with the other outer mold mounting plate, said piston and said cylinder unit forming an actuating unit configured to execute an opening and closing motion of the mold closing device and to produce a closing pressure of the mold closing device.