Method and apparatus for controlling an assembly for bonding a c

Details Method and apparatus for controlling an assembly for bonding a c Method and apparatus for controlling an assembly for bonding a c

1997-01-28

1998-08-11

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156214, 156245, 156286, 156311, 156358, 156359, 156366, 156382, 156498, B32B 3100

Patent

active

057922918

ABSTRACT:
A method and apparatus (84,94) for controlling an assembly for bonding a cover (22) over the undulating surface of a foam cushion (10) controls a tool actuator cylinder (80) to tilt a tool (18) to a loading position to permit placing the cover (22) and an adhesive layer (82) on the tool, tilts the tool to a working position to permit placing the cushion on the tool, controls a plate actuator cylinder (62) to lower and raise a compression plate (58) to force air from an interior of the cushion, controls a ram actuator cylinder (90) to lower a ram (14) to pierce the cushion with a plurality of hollow needles (44) attached to a plenum chamber, controls a heater (38) to heat compressed air and eject the hot air from the needles into the cushion to elevate the temperature of the cushion and melt the adhesive, and lowers and raises the compression plate to force hot air from the interior of the cushion to cure the adhesive and bond the cover to the cushion. Then the ram (14) is raised to extract the needles (44) from the cushion (10) as the compression plate (58) is maintained in place to hold the cushion and the cover (22) against the tool (18).

REFERENCES:
patent: 2726707 (1955-12-01), Wellons et al.
patent: 3960069 (1976-06-01), Bowyer
patent: 3979248 (1976-09-01), Kussmaul
patent: 4379018 (1983-04-01), Griesdorn
patent: 4692199 (1987-09-01), Kozlowski et al.
patent: 5372668 (1994-12-01), Bracesco
"Hot Air Systems", Osram Sylvania, Inc., Product Marketing Bulletin, Nov. 23, 1994.
"Temperature Controller", GTE Sylvania, Instruction Manual, Nov. 1994.

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