Line catcher type waterjet cutting apparatus with multiple driving units

A waterjet cutting apparatus comprising:

• a carry-in belt conveyor configured to load a workpiece on the carry-in belt conveyor and reciprocally move the workpiece in an X-direction;
• a carry-out belt conveyor placed at a rear side of the carry-in belt conveyor with a processing gap extending in a Y-direction interposed between the carry-in belt conveyor and the carry-out belt conveyor, the carry-out belt conveyor configured to load the workpiece on the carry-out belt conveyor and reciprocally move the workpiece in the X-direction;
• an ejection nozzle disposed above the processing gap to eject a pressurized fluid toward the processing gap to process the workpiece, the ejection nozzle reciprocally movable in the Y-direction;
• a catcher provided under the processing gap to receive the pressurized fluid ejected from the ejection nozzle and passing through the processing gap;
• and
• a workpiece edge clamping device configured to clamp edges of the workpiece and reciprocally movable on the carry-in belt conveyor in the X-direction, the workpiece edge clamping device comprising:
• a clamping frame having a workpiece input space through which the workpiece is loaded on the carry-in belt conveyor;
• and
• a plurality of clamps provided on an inner edge of the clamping frame to clamp the edges of the workpiece put into the workpiece input space,
• wherein the plurality of clamps includes a first clamp vertically movable in a Z-direction, and provided adjacent to the carry-out belt conveyor, wherein the first clamp is configured to clamp an edge of the workpiece when moved downwards and configured to form a discharge space between the first clamp and the carry-out belt conveyor to allow the workpiece to escape from the clamping frame through the discharge space when moved upwards.