Method and apparatus for automatically grasping, shaking, separa

Details Method and apparatus for automatically grasping, shaking, separa Method and apparatus for automatically grasping, shaking, separa

1990-12-06

1992-12-08

Schroeder, Werner H.

Textiles: ironing or smoothing

Accessories

Sheet shake out or spreader devices

38 7, 38 12, 1984654, D06F 6704

Patent

active

051686457

ABSTRACT:
A method and a machine for automatically handling a flat rectangular sheet, located in a bin, which ultimately grasps two adjacent corners, allowing the rest of the sheet to hang freely, making the sheets ready to be dried, pressed and folded. First, the sheet is grasped in an arbitrary location and dragged until the farthest corner is found. Second, this corner is grasped by a gripper, which is attached to a rail, allowing the sheet to be dragged and shaken until the diagonal corner is located. Third, this diagonal corner is grasped by a second gripper. Fourth, the two remaining corners are separated through the use of a separation guide. Fifth, one of these remaining corners is grasped by a third gripper. Sixth, the first gripper is released. Finally, the sheet is moved, through the use of the second and third gripper attached to independent rails which finally become parallel, to a location where the sheet can hang freely from the two grippers attached to adjacent corners. The sheets are ready to be dried, pressed and folded.

REFERENCES:
patent: 3911604 (1975-10-01), Stostrom
patent: 4313269 (1982-02-01), Van Rumpt et al.
patent: 4774505 (1988-09-01), Ueda et al.

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