Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Automatic and/or material-triggered control
Patent
1980-06-04
1982-02-02
Simmons, David A.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Automatic and/or material-triggered control
100 33PB, 156 735, 156515, 156580, B32B 3100
Patent
active
043137792
ABSTRACT:
A tool is provided for constricting a loop of thermoplastic strap that encircles an article and has overlapping strap segments and for sealing the segments with a friction fusion weld. A multiple drive shaft assembly is driven by a motor which can be rotated in a first direction and then in a second, opposite direction. The drive shaft assembly is engaged to a tension wheel in the first direction of rotation to constrict and tension the loop. A sensing and control means senses a predetermined loop tension level and reverses rotation of one of the drive shafts to the second direction. A mechanism responsive to the rotation of the shaft in the second direction is provided for pressing the overlapping strap segments together and for moving one of the segments relative to the other segment to effect the friction fusion weld.
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Signode Corporation
Simmons David A.
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