Ultrasonic welding system
OwnerHans-Peter Wild, Eberhard Kraft +1inventors
InventorsHans-Peter Wild, Eberhard Kraft, Frank Lechert
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Abstract
An ultrasonic welding system is provided for creating an ultrasonically welded seam in a plurality of layers of a material, for example a foil bag having a plurality of foil layers. The system preferably includes a sonotrode and an anvil constructed and arranged to apply a welding force at an angle of less than 90° with respect to the downward force of gravity. Accordingly, a vertical welding force can be provided on the foil layers to weld the foil layers together from the bottom upward.
Claims15
1-9. (canceled)
An ultrasonic welding system comprising:
- a sonotrode having a sonotrode plane;
- an anvil having an anvil plane;
- the sonotrode and the anvil being constructed and arranged to provide a gap between the sonotrode plane and the anvil plane for receiving a plurality of foil layers and to apply an upward force on the foil layers during welding, the upward force being applied at a direction opposite to the direction of gravity.
An ultrasonic welding system comprising:
- a sonotrode;
- an anvil;
- wherein the sonotrode and the anvil are arranged to provide a receiving gap therebetween wherein a plurality of foil layers are received;
- wherein the sonotrode and the anvil are constructed and arranged to be displaced toward each other until the sonotrode and the anvil contact the foil layers;
- wherein the sonotrode and the anvil apply a force on the foil layers during welding that is opposed to gravity at an angle of between 70° and 90°.
Dependencies are inferred from the claim text.