Roll assembly for a pipe extrusion plant
AssigneeKrauss-Maffei Kunststofftechnik GmbH
InventorHerbert Ulrich
Life of this patent
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Abstract
A roll assembly and a pipe extrusion plant for producing pipes with a variable diameter, includes an extruder, an adjustable calibration device, and a cooling device, whereby a pipe to be produced is guided at least in part during the production process. In order to be able to provide a guide that is suited to different pipe diameters, a roll assembly is provided to include a row of rolls which are placed one behind the other in a take-off direction, with each roll mounted in a bracket and supported to allow vertical positioning thereof in dependence on the pipe diameter.
Claims18
A roll assembly for guiding a pipe in a pipe extrusion plant for producing pipes of different diameter, comprising:
- a bracket;
- a roll supported by the bracket;
- and
- an adjustment device for automatically positioning the roll in vertical direction in dependence on a weight load upon the roll.
A pipe extrusion plant for producing pipes with different diameter, comprising:
- an extruder for plasticizing a starting material to produce a melt strand;
- an adjustable calibration device sizing the melt strand to shape for forming a molten tube;
- a cooling device for cooling the tube;
- and
- a roll assembly for guiding the tube during advance through the calibration device and the cooling device, said roll assembly including a plurality of rolls arranged behind one another in a travel direction and constructed to have at least two different roll geometries, and adjustment means for automatically positioning the rolls in vertical direction in dependence on a diameter of a pipe being produced.
Dependencies are inferred from the claim text.