Method and device for winding metal strip material
AssigneeSMS Siemag Aktiengesellschaft
InventorsMatthias Kipping, Rolf Franz
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Abstract
The invention concerns a method and a coiler mandrel for coiling metal strip (110), wherein the coiler mandrel (100) comprises a mandrel body (120), a plurality of radially expandable segments (115) arranged around the mandrel body (120), and a plurality of hydraulic cylinders (116) by which the segments (115) can be moved in the radial direction. To be able to coil the metal strip with a circular coil eye even when the friction varies in the individual cylinders, the invention proposes that each cylinder (116) of the plurality of cylinders be individually controlled.
Claims17
A method for coiling metal strip onto a coiler with a mandrel body, a plurality of radially expandable segments arranged around the mandrel body, and a plurality of radially acting hydraulic cylinders by which the segments can be moved in a radial direction, the method comprising the steps of:
- coiling metal strip around the segments;
- and individually controlling each cylinder of the plurality of cylinders to act in the radial direction so as to move the segments in the radial direction.
A coiler mandrel for winding metal strip, comprising:
- a mandrel body;
- a plurality of radially expandable segments arranged around the mandrel body;
- a plurality of radially acting hydraulic cylinders arranged radially beneath the segments so as to move the segments in the radial direction;
- and
- an automatic control device connected to the hydraulic cylinders for individually controlling each of the hydraulic cylinders.
Dependencies are inferred from the claim text.