摘要:
Regarding a cardboard sheet-cutting device, a cardboard sheet-cutting control unit and a cardboard sheet-manufacturing apparatus, the present invention makes continuous cutting possible during job changes, in which the cardboard sheet cutting width changes, without stopping conveyance of the cardboard sheets, limits broke generation and makes production cost reduction possible by providing: a printing unit (21) for printing cutting marks (M) on a double-faced cardboard sheet (E); a slitter scorer (23) for cutting the double-faced cardboard sheet (E) to a specified width; a cutoff (24) for cutting the double-faced cardboard sheet (E) to a specified length; a mark detector (40) for detecting cutting marks (M); a movement unit (41) for moving the mark detector (40) along the width direction of the double-faced cardboard sheet (E); and a cutting control unit (52) for performing control to actuate the cutoff (24) on the basis of the detection results of the mark detector (40) and moving the mark detector (40) using the movement unit (41) on the basis of job-change timing data and post-job change mark position information.
摘要:
Provided are a knife cylinder, a rotary die cutter, a fixation device for a knife mounting base, and a fixation method for a knife mounting base. A knife cylinder is provided with a restraint part (71) disposed within a fixation hole (49) so as to be movable in the axial direction and so as not to be rotatable in the circumferential direction; a compression coil spring (73) for pressing the restraint part (71) inwardly of the fixation hole (49); an operating part (72) having a base end section provided with a dish section (101) which can engage with a knife mounting base (45), the operating part (72) also having a front end section entering the inside of the restraint part (71) through a mounting hole (48); a protrusion (74) provided to the restraint part (71); a helical groove (75) provided in the operating part (72), the helical groove (75) engaging with the protrusion (74) and being configured so that, when the operating part (72) rotates, the helical groove (75) can move the restraint part (71) from a first position to a second position against the pressing force of the compression coil spring (73); and a blocking groove (76) provided in the outer surface of the operating part (72) and blocking the rotation of the operating part (72) in the reverse direction when the restraint part (71) is located at the second position.
摘要:
A device for cutting paper and other graphic substrates (10) in roll on two perpendicular axes simultaneously with automatic errors correction, both in the feeding with respect to a direction (F) along the longitudinal axis (Y) of the substrate, and of the deviation of the image with respect to the edge of the substrate itself. For this purpose a motor (5) is provided at the horizontal cutting unit (4), in addition to a drive motor (6), suitable for shifting the cutting path in order to make it coincide with the correct cutting line (Tx). In the same way, for the longitudinal cutting assembly (14) along the (Y) axis, in addition to a motor (7) for performing the cut, a motor (8) is provided suitable for translating along the (X) axis the whole cutting assembly on the basis of lateral deviations detected by means of an optic cell (9), whose signals are processed by a microprocessor for the drive of said motor (8).
摘要:
A system is described for cutting and creasing an indefinite weblike material (N) comprising: a first set of creasing tools (15); a second set of creasing tools (17); a first set of cutting tools (31); a second set of cutting tools (33); positioning means (27) for positioning said cutting and creasing tools; and first auxiliary cutting members (63) for making cuts not parallel with the direction of advance of the weblike material for the trims (R) along the edges of the weblike material when the change of job occurs. The first auxiliary cutting members (63) make a joining cut (4, 6) between the cut lines (1, 3) defining the trims (R) of one job and the cut lines (1', 3') defining the trims (R') of the next job, without severing the trims (R, R') transversely where the change of job occurs.