Winding – tensioning – or guiding – Unwinding – With attachment to preceding material
Patent
1999-01-22
2000-12-19
Nguyen, John Q.
Winding, tensioning, or guiding
Unwinding
With attachment to preceding material
2425561, B65H 1918
Patent
active
061617938
ABSTRACT:
A web splicing system has a cross machine direction vacuum clamp which is brought into engagement with an unwinding web. The web is brought to a stop and vacuum is applied to the clamp holding the paper web against the clamp. A cross machine direction paper cutter such as a water jet is mounted for cross machine direction motion on the clamp. The cutter is operated to sever the web held by the vacuum clamp from the spool or remaining reel. A new reel is prepared by cutting the web in the cross machine direction to form a start or web leading edge which is parallel to the axis of the new reel. Double sided tape is applied parallel to the leading edge and closely spaced therefrom. The vacuum clamp is positionable by conventional means to bring the paper web from the previous reel to overlie the double sided tape. The vacuum box is then brought down into engagement with the new reel and the double sided tape forming a splice. If it is desired to draw paper from the bottom of the reel, the new reel is positioned in the unwinding so paper can be drawn off the bottom of the reel into the rewinder. A flap of paper approximately six to 12 inches wide either on the tail or on the start is used to connect the lower side of the tail to the inside surface of the start.
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