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US 2009/0200358 A1Published application
Ultrasound welding device
AssigneeSonimat
InventorsEric Violleau, Patrick Cheppe
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AssigneeSonimat
InventorsEric Violleau, Patrick Cheppe
Estimating the term…
The present invention relates to a device for ultrasound welding of at least two overlapping sheets, comprising: at least one sonotrode for emitting ultrasound, at least one reaction part disposed at least partially facing the sonotrode, at least one intermediate wall other than a roller, movable relative to the at least one sonotrode and the reaction part, said intermediate wall at least partially defining a gap in which the sheets to be welded are inserted so as to execute at least one seal weld extending parallel in the direction of movement of the intermediate wall at the gap. At least one of the intermediate wall and the sonotrode has a transverse section comprising at least one relief projecting toward the gap.
A device for the ultrasonic welding of at least two superposed sheets, comprising:
A device for the ultrasonic welding of at least two superposed sheets, comprising:
An ultrasonic welding method, comprising the step of causing to travel at least two sheets to be assembled in contact with an intermediate wall placed between a sonotrode and a reaction piece, the intermediate wall moving in contact with one of the sonotrode and the reaction piece other than with a purely rotary movement, so as to produce a sealed weld line extending substantially parallel to a direction of movement;
An ultrasonic welding method comprising the step of causing to travel at least two sheets to be assembled in contact with an intermediate wall placed between a sonotrode and a reaction piece, the intermediate wall moving in contact with one of the sonotrode and the reaction piece other than with a purely rotary movement, so as to produce a sealed weld line extending substantially parallel to a direction of movement, wherein the intermediate wall is moved at a speed greater than the speed of movement of the sheets to be welded in the air gap.
Dependencies are inferred from the claim text.