Abstract: A device of securing a film bearing indicia on the surface of the printing roll under tension in an efficient and automatic way, the device comprising: a first engager and a second engager provided at each end of the film, a first receiving means and a second receiving means provided adjacent to each other on the peripheral surface of the printing roller, wherein the first receiving means is adapted to receive the first engager of the film and wherein the second receiving means is adapted to receive the second engager of the film, the second receiving means comprising a slotted rod rotatively placed in an accommodation groove produced in the printing roll, and a pinion secured to the terminating end of the rod, a rotor rotatively provided at one end face of the printing roll, the rotor having a first tooth zone and a second tooth zone in its periphery, wherein the first tooth zone is adapted to engage with the pinion and wherein the second tooth zone is adapted to engage with a ratchet mechanism provided in p

Abstract: An apparatus of feeding cardboards to a carton making section in the course of which they are individually printed in ink of different colors station by station, the apparatus including a conveyor unit located between each adjacent stations, which conveyor unit comprises an upper conveyor and a lower conveyor adapted to hold the cardboards therebetween, at least one of the upper conveyor or the lower conveyor including spikes projecting toward the cardboards held thereon, thereby securing the transferring of the cardboards from station to station.

Abstract: The corrugated boards contained in a hopper are individually kicked out onto conveyor belts on which each board firmly sticks thereto under suction from below, and are fed to a subsequent processing station, such as a printing station, thereby enabling the individual boards be fed in their right posture to a right place in the processing station.

Abstract: An apparatus and method for folding a container blank from a first channel shape to a final flat parallelogram shape by guiding the container blank along two parallel rails, past a plurality of grooved folding rollers, which are rotatably mounted at spaced locations along the rails. The rollers have top flange portions which abut the top of the container blank adjacent the folded edge and side faces abuting the container blank on the outer surface of the channel adjacent the folded edge, the side faces being increasingly inclined toward the container blank in the direction of motion of the blank along the rails to gradually fold the channel portion of the container blank back as the blank passes the rollers and forms the flattened parallelogram shape. The rollers may be separable into a top flange portion and a bottom side face portion which are adjustably engageable with each other to form grooves of varying depth to accommodate container blanks of varying thickness.