Process and apparatus for winding up a continuously fed web of material onto a number of winding cores
OwnerAnton Ruegginventor
Life of this patent
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Abstract
A winding apparatus winds up a continuously fed web of material onto a number of winding cores. Shortly before removing a finished roll from a main winding location, a drive mechanism is coupled onto a winding core, located in a waiting position. The drive mechanism drives the winding core before the core is set down on a web of material running over a winding drum. The winding core remains driven until the winding core with already wound-up web of material has been transferred at the main winding location onto bearing arms. Due to the continuing driving of the winding core during a change of rolls, qualitatively high-grade rolls can be wound with a wide variety of webs of material.
Claims14
A process for winding up a continuously fed web of material onto a number of winding cores, comprising the steps of:
- a) passing a web of material over a rotatably mounted winding drum at a predetermined speed for winding up at a main winding location onto winding cores along a web path to form rolls of a specified size;
- b) coupling a coupling element of a coupling arrangement provided on a swivel arm onto an empty core before a first roll forming at the main winding location reaches its specified size, and driving said coupling element from a stationary drive motor through a transmission such that the winding core is driven at a circumferential speed corresponding to the predetermined speed of the web of material;
- c) moving the driven empty winding core to an auxiliary winding location arranged along the web path before the main winding location, and bringing the driven empty core into contact with the web of material, running over the winding drum, at this auxiliary winding location;
- d) severing the web of material between the auxiliary winding location and the main winding location and, winding a free end of the web onto the driven winding core at the auxiliary winding location forming a second roll, while the severed first roll is removed from the main winding location;
- and
- e) subsequently, moving the winding core from the auxiliary winding location to the main winding location and winding the second roll into finished form.
Apparatus for winding up a continuously fed web of material onto a number of winding cores, comprising:
- a) a rotatably mounted winding drum, over which a web of material is passed along a web path;
- b) a bearing arrangement for receiving and releasably bearing a winding core, onto which the web of material is wound up at a main winding location to form a first roll of a specified size;
- c) a feed device for feeding an empty winding core from a waiting position to an auxiliary winding location arranged upstream of the main winding location along the web path, and in which the empty winding core is positionable into contact with the web of material running over the winding drum;
- d) a separating device, arranged between the auxiliary winding location and the main winding location, for separating the web of material;
- and
- e) a drive mechanism, switchable between on and off states, for rotatably driving the winding core, the mechanism being coupled onto the empty winding core when the core is located in the waiting position, said drive mechanism having the following features:
- a swivel arm rotatably mounted in a stationary bearing element;
- a coupling arrangement arranged at one end of the swivel arm for coupling with the winding core, the arrangement having a driveable first coupling element releasably positionable into engagement with a second coupling element on the winding core;
- a drive arrangement for swivelling the swivel arm;
- and
- drive means for driving the first coupling element including a stationary drive motor and a transmission arrangement driven by the drive motor and connected to the first coupling element.
Dependencies are inferred from the claim text.