Sheet feeding or delivering – Feeding – With means to align sheet
Patent
1987-08-28
1990-04-17
Skaggs, H. Grant
Sheet feeding or delivering
Feeding
With means to align sheet
271238, 271240, 271253, 271266, 271273, 72251, B65H 914
Patent
active
049173707
ABSTRACT:
A launcher for launching pieces of sheet metal into a roll former is disclosed. The launcher includes laterally spaced conveyor belts having parallel upper reaches which support the piece of sheet metal and transport it to a launch position. While located in the launch position, opposed pushers engage opposite edges of the sheet and move it laterally into a predetermined lateral location in which it is centered and aligned with the roll former. Thereafter, longitudinally spaced gripper rolls engage and grip the opposite sides of the sheet at longitudinally spaced locations. The gripper rolls operate to feed the sheet and maintain gripping thereof until substantially the entire sheet enters the roll former. Therefore, proper alignment is maintained and uniform roll forming is produced. The pushers along one side of the sheet move to a fixed position to precisely locate the adjacent edge of the sheet. The pushers along the opposite side are spring-loaded so that proper positioning is achieved without damaging the edges of the sheet. Sensors are provided to determine if cutouts preformed in the sheet are properly located.
REFERENCES:
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patent: 2632641 (1953-03-01), Rice
patent: 2805856 (1968-07-01), Stuchbery
patent: 3416790 (1968-12-01), Davis
patent: 3533619 (1968-07-01), Guenther et al.
patent: 4009878 (1977-03-01), Scheck
patent: 4090703 (1978-05-01), Straube
patent: 4472864 (1984-09-01), Cunningham et al.
patent: 4607837 (1986-08-01), Pierce
Bollinger David H.
Skaggs H. Grant
White Consolidated Industries, Inc.
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