Method and apparatus for joining paper material
AssigneeSyntegon Technology GmbH
InventorUlrich Wieduwilt
Life of this patent
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Abstract
The present invention relates to a method for joining paper material (2, 3) in a first joining region (20) and a second joining region (30), comprising the steps of: roughening the first joining region (20) and/or the second joining region (30), moistening the first joining region (20) and/or the second joining region (30), and joining the first and second joining region (20, 30) between a sonotrode (60) and an anvil (63) of an ultrasonic friction welding apparatus (6) by means of ultrasonic friction welding, wherein a vibration direction (A) of the sonotrode (60) is not parallel to a joining force direction (B) of a joining force of the anvil (63).
Claims17
A method for joining paper material (2, 3) at a first joining region (20) and a second joining region (30), comprising the steps of:
- roughening the first joining region (20),
- moistening the first joining region (20) after the roughening step, and
- joining the first and second joining region (20, 30) between a sonotrode (60) and an anvil (63) of an ultrasonic friction welding apparatus (6) by ultrasonic friction welding, wherein a vibration direction (A) of the sonotrode (60) is not parallel to a joining force direction (B) of a joining force of the anvil (63).
An apparatus for joining paper material (2, 3) at a joining region (20, 30) of the paper material, comprising
- a roughening apparatus (4) for roughening the joining region (20,30) of the paper material,
- a moistening apparatus (5) for moistening the joining region (20, 30) the moistening apparatus (5) configured to moisten the joining region (20, 30) after the roughening apparatus (4) roughens the joining region (20,30), and
- an ultrasonic friction welding apparatus (6) comprising a sonotrode (60) for generating an ultrasonic vibration and an anvil (63) for generating a joining force, wherein the ultrasonic vibration is directed in a first direction (A) which is not parallel to a force direction (B) of the joining force of the anvil.
Dependencies are inferred from the claim text.