CONTROL DEVICE FOR WORK FEEDER

WIPO Patent Application WO/1991/004116

A1

A control device for a work feeder automatically carrying in and out a work in association with the movement of the press, which device is capable of automatically setting an optimum motion curve according to the shapes and sizes of the work and metallic mold of the press, and also capable of detecting whether unreasonable operation conditions are set or not. In order to perform the above functions, the device is provided with means for setting respective degrees of angle at the start and end of the motion of the crank shaft as well as means of operation for specifying a motion curve of movable shafts on the basis of the set values. The device is further provided with means to calculate the maximum allowable operation strokes of the press, compares the calculated strokes with the set number of strokes for evaluation thereof, and checks an overload on the motor.

Tsuruta, Katsuji (Komatsu Electro-Mechanical Manufacturing Div, 2597 Shinomiy, Hiratsuka-shi Kanagawa 254, JP)
Yoshikawa, Eiji (Komatsu Electro-Mechanical Manufacturing Div, 2597 Shinomiy, Hiratsuka-shi Kanagawa 254, JP)

PCT/JP1990/001213

April 04, 1991

September 21, 1990

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KABUSHIKI KAISHA KOMATSU SEISAKUSHO (3-6 Akasaka 2-chome, Minato-ku, Tokyo 107, JP)
Tsuruta, Katsuji (Komatsu Electro-Mechanical Manufacturing Div, 2597 Shinomiy, Hiratsuka-shi Kanagawa 254, JP)
Yoshikawa, Eiji (Komatsu Electro-Mechanical Manufacturing Div, 2597 Shinomiy, Hiratsuka-shi Kanagawa 254, JP)

B21D43/05; G05B19/416; (IPC1-7): B21D43/05

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