Ultrasonic welding device
AssigneeSIG Schweizerische Industrie-Gesellschaft
InventorBernhard Krayer
Life of this patent
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Abstract
An ultrasonic welding device includes a sonotrode emitting vibratory energy and an anvil having a work face cooperating with the sonotrode for supporting a workpiece positioned for welding between the sonotrode and the anvil. The anvil has a housing and a plurality of laminae individually shiftably supported in the housing in a face-to-face relationship for forming a lamina stack. Each lamina has an edge face at a side of the lamina stack; the edge faces together constitute the work face of the anvil. There is also provided a force exerting arrangement for imparting individually to each lamina a force oriented towards the sonotrode for individually urging each lamina outwardly of the housing in the direction toward the sonotrode.
Claims13
In an ultrasonic welding device including a sonotrode emitting vibratory energy and an anvil having a work face cooperating with the sonotrode for supporting a workpiece positioned for welding between the sonotrode and the anvil;
- the improvement in said anvil comprising
- (a) a housing means having a support base;
- (b) a plurality of laminae individually shiftably supported in said housing means in a face-to-face relationship for forming a lamina stack;
- each lamina having a first edge face at a side of the lamina stack;
- the first edge faces together constituting said work face of said anvil;
- each lamina having a second edge face situated opposite the first edge face;
- each lamina being of a resilient material and having a slot to define a springing lamina portion containing said second edge face;
- said springing lamina portion engaging said support base with said second edge face;
- and
- (c) force-exerting means for imparting individually to each said lamina a force oriented towards said sonotrode for individually urging each said lamina outwardly of said housing means in the direction of said sonotrode;
- said springing lamina portion forming part of said force-exerting means.
In an ultrasonic welding device including a sonotrode emitting vibratory energy and an anvil having a work face cooperating with the sonotrode for supporting a workpiece positioned for welding between the sonotrode and the anvil;
- the improvement in said anvil comprising
- (a) a housing means having a support base;
- (b) a plurality of laminae individually shiftably supported in said housing means in a face-to-face relationship for forming a lamina stack;
- each lamina having a first edge face at a side of the lamina stack;
- the first edge faces together constituting said work face of said anvil;
- each said lamina having a second edge face situated opposite the first edge face;
- and
- (c) force-exerting means for imparting individually to each said lamina a force oriented towards said sonotrode for individually urging each said lamina outwardly of said housing means in the direction of said sonotrode;
- said force-exerting means being disposed between said support base and the second edge face of said laminae;
- said force-exerting means comprising a resilient leg forming an integral part of each said laminae;
- each said resilient leg extending from the second edge face of the respective said lamina and engaging said support base.
In an ultrasonic welding device including a sonotrode emitting vibratory energy and an anvil having a work face cooperating with the sonotrode for supporting a workpiece positioned for welding between the sonotrode and the anvil;
- the improvement in said anvil comprising
- (a) a housing means having a support base;
- (b) a plurality of laminae individually shiftably supported in said housing means in a face-to-face relationship for forming a lamina stack;
- each lamina having a first edge face at a side of the lamina stack;
- the first edge faces together constituting said work face of said anvil;
- each said lamina having a second edge face situated opposite the first edge face;
- and
- (c) force-exerting means for imparting individually to each said lamina a force oriented towards said sonotrode for individually urging each said lamina outwardly of said housing means in the direction of said sonotrode;
- said force-exerting means being disposed between said support base and the second edge face of said laminae;
- said force-exerting means comprising separate springs each engaging said support base and the second edge face of said laminae.
Dependencies are inferred from the claim text.