Claims
- 1. A process for transferring a material web from a wound roll to a winding sleeve in a transfer region of a winding device, comprising:
- separating the web in a cross-wise direction at a position upstream from the transfer region with respect to a web travel direction with a straight separation line, whereby the straight separation line forms a leading edge and a trailing edge;
- applying a double-sided adhesive tape along the straight separation line;
- moving the straight separation line into the transfer region;
- increasing a web tension, whereby the double sided adhesive tape is torn along the straight separation line, which separates the trailing edge from the leading edge;
- sticking the trailing edge onto the wound roll; and
- sticking the leading edge onto the winding sleeve.
- 2. The process according to claim 1, wherein the winding device is composed of a carrying roll winder and the transfer region includes a winding bed of the carrying roll winder.
- 3. The process according to claim 1, wherein the adhesive tape is applied along the straight separation line during the separating of the web.
- 4. The process according to claim 1, the increasing of the web tension comprising: ejecting the wound roll from the winding device.
- 5. The process according to claim 1, after the adhesive tape is torn, the process further comprising:
- ejecting the wound roll from the winding device; and
- pressing the trailing edge against a circumference of the wound roll in a circumferential direction until the web end is stuck on.
- 6. The process according to claim 1, further comprising:
- holding the web in place during the separating of the web.
- 7. The process according to claim 6, wherein the web is held substantially free of web tension.
- 8. The process according to claim 1, further comprising:
- ejecting the wound roll from the winding bed;
- inserting the roll sleeve into the winding bed during the ejection of the wound roll; and
- retaining the leading edge in the winding bed during the ejection of the wound roll.
- 9. The process according to claim 1, wherein when the straight separation line is positioned within the transfer region, the process further comprises:
- holding the web against movement;
- lifting the wound roll with an ejection device, wherein the lifting of the wound roll provides the increased web tension.
- 10. The process according to claim 1, further comprising moving a pressing device in a circumferential direction of the wound roll over the trailing edge.
- 11. A winding device for a material web comprising:
- a cutting device that cuts the material web in a cross-wise direction, whereby a cutting line forms a leading and trailing edge;
- an applying device that applies a double-sided adhesive tape, the applying device being positioned to follow the cutting device, whereby the adhesive tape is applied while the cutting line is being made;
- a transfer region in which the trailing edge is to be stuck to a wound roll and the leading edge is to be stuck to a winding sleeve;
- the cutting device and the applying device being located at a distance upstream of the transfer region, with respect to a web travel direction.
- 12. The device according to claim 11, further comprising:
- two carrying rolls arranged to support the wound roll and to define a winding bed, which is included within the transfer region.
- 13. The device according to claim 11, the cutting device and the applying device being coupled to a common carrier.
- 14. The device according to claim 13, the common carrier being movable in a cross-wise direction relative to the material web.
- 15. The device according to claim 11, further comprising:
- a winding bed adapted to support the wound roll;
- an ejection device positioned adjacent to the winding bed and being adapted to remove the wound roll from the winding bed, and thereby tear the adhesive tape.
- 16. The device according to claim 11, further comprising a pressing element adapted to be placed against a circumference of the wound roll being movable over the circumference of the wound roll in a circumferential direction,
- wherein, during ejection of the wound roll from the winding device, the pressing element is moved over the circumference of the wound roll.
- 17. The device according to claim 16, further comprising an ejection device comprising an ejection tube supported on ejection levers that are pivotable around an axis beneath the wound roll;
- wherein the ejection levers, being arranged to support pressing levers that carry pressing elements, are hydraulically actuatable.
- 18. The device according to claim 17, further comprising hydraulic cylinders coupled to the ejection levers.
- 19. The device according to claim 11, the transfer region composed of two support rolls forming a winding bed, and the device further comprising:
- a retaining device movable to press against one of the support rolls.
- 20. The device according to claim 11, the transfer region composed of two support rolls forming a winding bed, and the device further comprising:
- a movable receptacle adapted to retain the winding sleeve and to insert the winding sleeve into the winding bed.
- 21. The device according to claim 11, the cutting device comprising a cutting wheel and an opposing plate.
- 22. The device according to claim 21, the opposing plate comprising a gap adapted to receive a portion of the cutting wheel.
- 23. A process for transferring a material web from a wound roll to a winding sleeve in a transfer region of a winding device, comprising:
- cutting a cross-wise line in the web at a position upstream from the transfer region with respect to a web travel direction to completely sever the web and to thereby form a clean leading edge and a clean trailing edge;
- applying a double-sided adhesive tape along the cross-wise line;
- moving the cross-wise line into the transfer region; and
- increasing web tension to tear the double sided adhesive tape at the cross-wise line.
Priority Claims (1)
Number |
Date |
Country |
Kind |
198 08 041 |
Feb 1998 |
DEX |
|
CROSS-REFERENCE TO RELATED APPLICATIONS
The present application claims priority under 35 U.S.C. .sctn.119 of German Patent Application No. 198 08 041.7, filed on Feb. 26, 1998, the disclosure of which is expressly incorporated by reference herein in its entirety.
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