Machine for ultrasonic bonding
AssigneeKimberly-Clark Corporation
InventorsSteven L. Goodman, Robert E. Vogt
Life of this patent
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Abstract
An apparatus (10) of the type for laminating two elastomeric fibrous web materials (14,16) together by ultrasonic bonding includes a continuously moving web transport support (12) for transporting at least two overlaid webs (14,16) through the apparatus (10). An ultrasonic horn (18) transmits ultrasonic energy to bond the webs (14,16) together into a laminate. An anvil underlies the ultrasonic horn (18). A vacuum mechanism (24) draws the webs (14,16) against the web transport support (12) for perfecting bonding and to prevent rippling and tearing of the webs (14,16) against the horn (18) and the web transport support (12) during the ultrasonic bonding.
Claims5
An ultrasonic bonding apparatus for ultrasonically bonding at least two continuously moving webs together, said apparatus comprising:
- an ultrasonic horn means for transmitting ultrasonic energy, said horn means having a face;
- a continuously moving anvil means underlying said horn means for perfecting bonding between said two continuously moving webs, said anvil means comprising a continuously moving, air-permeable, endless wire mesh defining a plurality of pronounced upwardly-projecting knuckles;
- a bonding area of said wire mesh directly below said face of said horn means;
- and
- means for providing vacuum suction directly below said bonding area, whereby puckering and tearing of said two continuously moving webs at the bonding area are prevented.
An ultrasonic bonding apparatus for ultrasonically bonding at least two continuously moving webs together, said apparatus comprising:
- an ultrasonic horn means for transmitting ultrasonic energy, said horn means having a face;
- a continuously moving anvil means for perfecting bonding between said two continuously moving webs, said anvil means comprising a continuously moving, rotatable drum having a plurality of projections extending radially outwardly therefrom;
- a bonding area directly below said face of said horn means;
- and
- means for providing vacuum suction directly below said bonding area, whereby puckering and tearing of said two continuously moving webs at the bonding area are prevented.
Dependencies are inferred from the claim text.