Device and method for splicing tire tread strip edges using trav

Details Device and method for splicing tire tread strip edges using trav Device and method for splicing tire tread strip edges using trav

1994-06-07

1995-08-22

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156157, 1563045, 1564064, 156409, 156502, 1565801, B32B 3116

Patent

active

054436672

ABSTRACT:
A device (10) for splicing materials such as a strip of uncured tire tread stock (11) by ultrasonic joining includes two engagement cylinders (52, 72) driving two ultrasonic transducers (40, 60) having horns (43, 63) into selective, pressure engagement with the tire tread stock (11) at the top edge (15) of the splice joint, sealing the same. A screw (81) having right-handed threads (84) and opposite, left-handed threads (85) moves horns (43, 63) from their initial point of contact at opposite tire tread edges toward centerline (16) of tire tread stock (11) while horns (43, 63) deliver ultrasonic energy to top edge (15). As transducers (40, 60) near centerline (16), transducer (40) is withdrawn and transducer (60) continues thereacross, insuring a complete seal across the entire splice joint. A quality seal is obtained by selection of transducer (40, 60) frequency, control of transducer (40, 60) amplitude, and control of the pressure and speed of the transverse motion of horns (43, 63).

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Branson 800 Series--Ultrasonic Plastics Assembly Systems, Dec. 1978.

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