Amada Company, Limited

Minoru Aoyagi

Takayoshi Hasegawa

To cut a workpiece along two different cutting directions, the band saw teeth are set in a first vertical cutting direction by a band saw guide device and then the cutting head (CH) is moved frontward, for instance; thereafter, the band saw teeth are twisted toward a second vertical cutting direction by the same guide device and then the cutting head is moved to-and-fro, for instance. The machine is effectively usable in cutting off a test piece from a large workpiece. To improve the cutting precision, various novel devices are incorporated, such as a balance cylinder (B-CYL) for allowing the cutting head to move up and down smoothly; two back-and-forth cylinders (BF-CYL) for moving the cutting head back and forth in symmetrical pressure application; cutting head fix device (FD); a rigid guide column; band saw holding device (BSH); a slidable small-diameter driven wheel arranged within the cutting head (CH), etc.

Two-way band saw machine

A method for conveying a long workpiece to a cutting machine includes the steps of conveying a long workpiece laterally to a feed conveyor positioned in parallel with the path line of the cutting machine by a cross conveyor extending in the lateral direction of the workpiece; stopping the cross conveyor when a workpiece reaches a regulating member provided above the cross conveyor, in a line parallel to the path line of the cutting machine; moving the feed conveyor with respect to the cutting machine path line in response to the workpiece width so that the feed conveyor is located at a position for selectively scooping up the workpiece; moving at least one of the feed conveyor or the cross conveyor in the vertical direction so that the workpiece is selectively loaded on the feed conveyor; and conveying the loaded workpiece to the cutting machine by the feed conveyor. A workpiece conveying device for conveying a long workpiece to a cutting machine, includes a cross conveyor for conveying the workpiece laterally to the direction normal to the cutting machine path line; a regulating member for regulating the position of the workpiece in alignment with the cutting machine path line; a feed conveyor disposed parallel to the cutting machine path line; a position adjusting means for adjusting the position of the feed conveyor in the lateral direction; and a vertical operating device for moving a part of the cross conveyor in the vertical direction.

Workpiece conveying method and device for a cutting machine

To cut a workpiece along two different cutting directions, the band saw teeth are set horizontally by a band saw guide device and then the cutting head (CH) is moved frontward, for instance; thereafter, the band saw teeth are twisted downward by the same guide device and then the cutting head is moved downward. The machine is effectively usable in cutting off a test piece from a large workpiece. To improve the cutting precession, various novel devices are incorporated, such as a balance cylinder (B-CYL) for allowing the cutting head to move up and down smoothly; two back-and-forth cylinders (BF-CYL) for moving the cutting head back and forth in symmetrical pressure application; cutting head fix device (FD); a rigid guide column; band saw holding device (BSH); a slidable small-diameter driven wheel arranged within the cutting head (CH), etc.

An apparatus is provided for controlling the raising and lowering of a cutting head assembly of a horizontal bandsaw machine. The apparatus comprises a sensing member for sensing the top surface of a workpiece to be cut and an actuating device which is operatively coupled to the sensing member. The actuating device switches from a first state to a second state when the sensing member senses the top surface of the workpiece. A carrier device is operatively coupled to the actuator wherein the position of the carrier is movable with respect to the cutting edge of the blade of the bandsaw when the actuator is in the first state and the position of the carrier is fixed with respect to the cutting edge of the bandsaw when the actuator is in the second state. A detector is mounted on the cutting head assembly for movement therewith such that the detecting member contacts the carrier device upon the raising of the cutting head wherein upon contact of the detector and the carrier device, the detector provides a signal for stopping the further raising of the cutting head.

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Hatano, Japan

Minoru Aoyagi