A rotary stamper includes an upper die plate assembly, a lower die plate assembly, and a support frame having a drive assembly that moves the upper die plate horizontally and vertically along a generally circular pathway while moving the lower die plate along a linear horizontal pathway. The upper die plate is vertically slidably connected to the lower die plate by way of one or more vertical rods that extend from the lower die plate assembly up through the upper die plate. In operation, the lower die plate matches the horizontal movements of the upper die plate as the latter is moved along its circular pathway. Concurrently, the upper die plate moves towards and away from the lower die plate. This maintains a substantially constant alignment between the die plates for carrying out a periodic machining operation on a moving web of material passing there between.

A press machine includes upper and lower crankshafts having the same amount of eccentricity and driven in opposite directions with a phase difference of 180 degrees, a slide and a bolster rotatably connected to eccentric parts of the upper and lower crankshafts, respectively, a parallel maintaining mechanism configured to maintain a parallelism between the slide and the bolster, and a clamp mechanism including an upper clamp attached to the slide and a lower clamp attached to the bolster. The slide and the bolster move toward/away from each other and advance/retreat together along a feed direction of a material in accordance with rotational driving of the upper and lower crankshafts. The clamp mechanism clamps the material when the slide and the bolster move toward each other and unclamps the material forwardly fed while being clamped when the slide and the bolster move away from each other.

A flying punch and cutoff machine that performs an operation on a moving item that moves at a line speed comprises a support assembly; a carriage assembly movably supported by the support assembly; a tooling assembly supported by the carriage assembly, the tooling assembly including a tool to perform an operation on the moving item; a roller rack and pinion mechanism supported by the support assembly and configured to impart motion to the carriage assembly; and a controller configured to control the roller rack and pinion mechanism so that a line speed of the carriage assembly and tool matches the line speed of the moving item so that the operation is performed on the moving item with that no relative motion occurring between the moving item and the tool.

A flying punch and cutoff machine that performs an operation on a moving item that moves at a line speed includes a support assembly; a carriage assembly movably supported by the support assembly; a tooling assembly supported by the carriage assembly, the tooling assembly including a tool to perform an operation on the moving item; a roller rack and pinion mechanism supported by the support assembly and configured to impart motion to the carriage assembly; and a controller configured to control the roller rack and pinion mechanism so that a line speed of the carriage assembly and tool matches the line speed of the moving item so that the operation is performed on the moving item with that no relative motion occurring between the moving item and the tool.

A rotary stamper includes an upper die plate assembly, a lower die plate assembly, and a support frame having a drive assembly that moves the upper die plate horizontally and vertically along a generally circular pathway while moving the lower die plate along a linear horizontal pathway. The upper die plate is vertically slidably connected to the lower die plate by way of one or more vertical rods that extend from the lower die plate assembly up through the upper die plate. In operation, the lower die plate matches the horizontal movements of the upper die plate as the latter is moved along its circular pathway. Concurrently, the upper die plate moves towards and away from the lower die plate. This maintains a substantially constant alignment between the die plates for carrying out a periodic machining operation on a moving web of material passing there between.

A rotary stamper includes an upper die plate assembly, a lower die plate assembly, and a support frame having a drive assembly that moves the upper die plate horizontally and vertically along a generally circular pathway while moving the lower die plate along a linear horizontal pathway. The upper die plate is vertically slidably connected to the lower die plate by way of one or more vertical rods that extend from the lower die plate assembly up through the upper die plate. In operation, the lower die plate matches the horizontal movements of the upper die plate as the latter is moved along its circular pathway. Concurrently, the upper die plate moves towards and away from the lower die plate. This maintains a substantially constant alignment between the die plates for carrying out a periodic machining operation on a moving web of material passing there between.

A method and device provides for alternately cutting off material by back-and-forth movement of multiple vehicles. Specifically, the device is a cut-off machine for alternately cutting off material by back-and-forth movement of multiple vehicles. The cut-off machine is at least provided with two cutter vehicles, wherein these vehicles are installed on tracks parallel to material. The tracks are arranged around the material side by side. Each vehicle moves back and forth in accordance with a set sequence. Cutters on the vehicles alternately cut off the material in accordance by a set length. The larger the number of vehicles, the longer the possible stroke of each vehicle can be, such that the cutters have more time to cut off the material. Accordingly, the cut-off machine can be adapted to higher material forming speeds in a production line.