Infinitely adjustable calibrating shell for continuous extruded plastic parts, in particular plastic pipes
AssigneeINOEX GmbH
InventorsJorg Schmuhl, Torsten Schulze
Life of this patent
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Abstract
Infinitely adjustable calibrating shell includes a central piece formed by strips or bands which are hingedly connected to each other and intersect like an extendable lattice that is formed into a shell. Preferably, the ends of the strips are movably connected to annular heads. The inner diameter of the central piece which is decisive for the calibrating process, can be modified by axially changing the distance between the annular heads, the cross section of the central piece having a circular shape in each axial position. The infinitely adjustable calibrating shell is suitable for continuous extruded plastic parts, in particular plastic pipes.
Claims12
An infinitely adjustable calibrating shell for extruded plastic parts, comprising:
- a) an extendable middle section formed by a first set of first flexible bands which abut a plastic part, in use, and the first flexible bands running inclined relative to an axis of the calibrating shell;
- b) the first flexible bands being adjustable in terms of their mutual distance;
- c) a second set of second flexible bands being provided;
- and
- d) the bands of the first set of flexible bands crisscrossing the flexible bands of the second set of flexible bands like an extendable lattice grate, and being hinged together at intersecting points of the lattice grate.
Dependencies are inferred from the claim text.