| 摘要 |
<p>A description is given of a corrugator device for shaping thermoplastic corrugated pipes from a tube of molten plastics material emerging from an extrusion device, with molding jaws 1.1 to 1.6 which are guided so as to circulate in a linear molding section 10 and are arranged in pairs one behind the other so as to form a molding passage in the molding section 10, wherein the pairs of molding jaws are formed from left-hand and right-hand molding jaws 1.1 to 1.6 and between them enclose a cylindrical mold cavity to form the molding passage; with grippers 2 for returning the molding jaws 1.1 to 1.6 from the end of the molding section 10 to the start of the molding section 10. Arranged at the end of the molding section 10 is a mold release device, which has at least one motor-driven rotary disk 3. The motor-driven rotary disk 3 has a first driver 31 and a second driver 32, which are arranged in such a way that the distance between the first driver 31 and the central rotational axis of the rotary disk is smaller than the distance between the second driver 32 and the central axis. As a result, during the mold releasing operation, at the beginning of said operation the first driver 31 acts with the smaller lever arm on the molding jaws and subsequently the second driver 32 acts with the greater lever arm on the molding jaws.</p> |
