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US 5,328,545 AGranted
Device for overlapping welding of foil edges
OwnerRenald Kaminskiinventor
Life of this patent
Estimating the term…
Abstract
The invention relates to a device for welding overlapping foil edges with a heater, with contact rollers for the exterior contact at the foil edges as well as at least one height adjustment device, whereby the height adjustment device has a guide device for movement control of the respective contact roller essentially transversely to the processing direction of the foil edges, as well as a drive for moving the contact roller.
Claims17
A device for welding overlapping edges of a material, comprising:
- a heater;
- first and second oppositely disposed and spaced contact rollers located downstream of said heater for pressing therebetween overlapping edges of material to be heated by said heater;
- and
- an adjustment assembly for selectively adjusting and setting an initial distance between said first contact roller and said second contact roller, said adjustment assembly comprising a rotatable spindle operatively associated with said first contact roller, a motor, connecting means operably connecting said motor to said spindle for causing rotation thereof and for permitting said spindle to move in a first direction, and a bias means operatively associated with said and cooperating with said connecting means for maintaining substantially constant pressure on said first roller independent of said initial distance.
1 more element
A device for welding overlapping edges of a material, comprising:
- a longitudinally extending heater;
- first and second sets of oppositely disposed and spaced contact rollers longitudinally spaced downstream of said heater for pressing therebetween overlapping edges of material to be heated by said heater;
- and
- an adjustment assembly for selectively adjusting and setting an initial distance between said first set of contact and said second set of contact, said adjustment assembly comprising a rotatable spindle operatively associated with said first set of contact rollers, a motor, connecting means operably connecting said motor to said spindle for causing rotation thereof and for permitting said spindle to move axially in a first direction, and at least a first bias means operatively associated with said spindle for and cooperating with said connecting means for maintaining substantially constant pressure on said first set of contact rollers independent of said initial distance.
1 more element
Dependencies are inferred from the claim text.