Apparatus for joining the ends of webs
AssigneeOy Wartsila Ab
InventorMarkku Kyyts/o/ nen
Life of this patent
Estimating the term…
Abstract
Method and apparatus for joining an end of a first web to an end of a second web by, for example, double-sided adhesive tape, glue or the like, include locking the end of the first web at a fixed position by first locking apparatus and locking, i.e., holding the end of the second web by second holding and moving apparatus. The held end of the second web is moved by the second apparatus into pressure contact with the end of the first web whereby the ends of the respective webs are joined to each other by adhesive tape, glue or the like.
Claims11
Apparatus for joining an end of a first web to an end of a second web comprising:
- first locking means for locking the end of the first web at a first location, said first locking means comprising a guide roll, a fixedly mounted suction box having a suction surface and a locking member for locking the first web against said guide roll;
- and
- second holding and moving means for holding the end of the second web and moving the held end of the second web into contact with the end of the first web, said ends of the first and second webs being mutually disposed to form a joint with each other, said second holding and moving means comprising fetching arm means, a suction roll mounted at one end of said fetching arm means, a depressor arm turnably mounted to said fetching arm means, and a suction beam mounted on said depressor arm.
Appartus for joining an end of a first web to an end of a secod web of a web roll comprising:
- first suction surface means for locking the end of the first web at a first location;
- a suction roll;
- means for moving the suction roll into engagement with the second web on the web roll and winding a length of the second web onto the suction roll;
- means for moving the suction roll with the length of the second web wound thereon to a position remote from the web roll so that an extended length of the second web extends between said suction roll and the web roll;
- second suction surface means associated with said suction roll for holding a portion of the extended length of the second web;
- means for cutting the second web over its transverse width along a line situated between said second suction surface and said suction roll whereby said portion of said extended length of the second web held by said second suction surface constitutes the end of the second web;
- and
- means for moving said second suction surface means and the end of the second web held by it to the first location and pressing the end of the second web against the end of the first web.
Apparatus for joining an end of a first web to an end of a second web comprising:
- first locking means for locking the end of the first web at a first location;
- and
- second holding and moving means for holding the end of the second web and moving the held end of the second web into contact with the end of the first web, said ends of the first and second webs being mutually disposed to form a joint with each other, said second holding and moving means including means for maintaining a substantially constant tension in the second web wherein said first locking means include means for supporting said first web, a suction box having a suction surface, and a locking member for locking the first web against said supporting means.
Apparatus for joining an end of a first web to an end of a second web, comprising:
- first locking means for locking the end of the first web at a first location;
- and
- second holding and moving means for holding the end of the second web and moving the held end of the second web into contact with the end of the first web, said ends of the first and second web being mutually diposed to form a joint with each other, said second holding and moving means comprising fetching arm means, a suction roll mounted at one end of said fetching arm means, a depressor arm turnably mounted to said fetching arm means, and a suction beam mounted on said depressor arm.
Dependencies are inferred from the claim text.