Device for linking two webs of material

• US 6,758,431 B2
• Filed: 02/26/2003
• Issued: 07/06/2004
• Est. Priority Date: 11/24/2000
• Status: Expired due to Fees

• Current Assignee: Koenig & Bauer AG
• Original Assignee: Koenig & Bauer AG
• Inventors: Trutschel, Hartwig Horst
• Primary Examiner(s): Rivera, William A.
• Application Number:
  US10/344,893
• Publication Number:
  US 20030178523A1
• Time in Patent Office: 496 Days
• Field of Search: 242/555, 242/555.3, 242/555.5, 242/556
• US Class Current: 242/555.3
• CPC Class Codes: B65H 19/1815 the replacement web being stationary prior to splicing contact
• CPC Class Codes: B65H 19/1873 with two stationary roll supports carrying alternately the replacement and the expiring roll
• CPC Class Codes: B65H 19/20 Cutting-off the expiring web

Abstract

Two webs of material, each rolled on a separate roll of material, are linked or spaced together during a web-roll change, without stoppage of the web travel. A linking or splicing device is used for linking, particularly by gluing the fresh web of material to the exhausting web. A cutting device is used to produce two web ends. The cutting device is located downstream of the linking or splicing device, as seen in a direction of travel of the expiring or exhausting web of material.

Claims

1. A device for connecting webs of material wound on rolls during a flying roll change comprising:

a web connecting device useable to move an exhausting web of material into contact with a fresh web of material to connect the exhausting web of material, moving in a web direction of travel, with the fresh web of material;

a web cutting device engageable with the exhausting web of material for cutting the exhausting web of material subsequent to said connection; and

means for changing a course of travel of the exhausting web of material subsequent to said connection for engaging said web cutting device with the exhausting web of material to be cut.

2. The device of claim 1 wherein said web cutting device is arranged after said web connecting device, in the web a direction of travel of exhausting web of material.

3. The device of claim 2 wherein said web connecting device is a gluing roller.

4. The device of claim 1 wherein said web connecting device is displaceable and further wherein said web cutting device is engageable with the exhausting web of material to be cut by displacement of said web connecting device.

5. The device of claim 4 wherein said displacement of said web connecting device displaces the fresh web of material.

6. The device of claim 1 wherein said web cutting device is parallel with a path of travel of the fresh web of material during the connection of the fresh web of material to the exhausting web of material.

7. The device of claim 1 further including a spacing element for said web cutting device, said spacing element being usable to define a measured minimum distance between a cutting edge of said cutting device, and the fresh web of material.

8. The device of claim 1 further including a displaceable frame supporting at least one of said web connecting device and said web cutting device.

9. The device of claim 8 wherein said frame is displaced forward and away from the fresh roll of material.

10. The device of claim 8 wherein said cutting device is secured on said frame and further wherein said web connecting device is displaced on said frame, the exhausting web of material to be cut being engageable with said web cutting device by displacement of said displaceable web connecting device.