B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
201/73
B21D 43/10 (2006.01) B21D 43/05 (2006.01)
Patent
CA 1267376
ABSTRACT OF THE DISCLOSURE In a transfer press having feed bars and a press drive, an improved feed bar driving apparatus has a vertical rod reciprocally movable in association with the press drive and having a threaded portion, a drive means to the vertical rod means for rotating the vertical rod means in opposite directions, a feed screw device connected to the threaded portion of the vertical rod for being rotated by the vertical rod in opposite directions by rotation and reciprocation of the vertical rod, a pair of feed bar receptacles slidably supporting the feed bars and connected to the feed screw device for being moved toward and away from each other when the feed screw device is rotated in respective opposite directions for moving the feed bars in a clamping and unclamping movement, a cam rotatable in association with the press drive, a lever mounted on a fulcrum and connected to the vertical rod and in contact with the cam for being pivoted around the fulcrum by the cam for moving the vertical rod through a stroke, and a stroke adjusting mechanism connected to the fulcrum for changing the position of the fulcrum for selectively adjusting the stroke of the vertical rod and thereby adjusting the stroke of the feed bars.
516316
Arai Toshihiko
Hashimoto Masakazu
Hashimoto Yoshiyuki
Imanishi Shozo
Kato Yoshinori
Aida Engineering Ltd.
Arai Toshihiko
Hashimoto Masakazu
Hashimoto Yoshiyuki
Imanishi Shozo
LandOfFree
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