Abstract: Reconditioning is performed such that the curvature of the arcuate surface of the crest on the upper corrugating roll is increased as compared before conditioning. Further, reconditioning is performed such that the curvature of the arcuate surface of the crest on the lower corrugating roll is increased as compared before conditioning. In this step, polishing is performed so as to maintain the maximum diameter of the crest on the upper corrugating roll as much as possible. Thereby, since the length of the inclined surface of the corrugating roll connecting between a crest and a trough of the upper and lower corrugating rolls and is reduced, the rate of the increase in the consumption of corrugated mediums of fluted corrugated mediums for double-faced corrugated cardboard sheets shaped by the upper and lower corrugating rolls and after reconditioning can be reduced.

Abstract: Disclosed is a method for producing a board box by performing a box-making process of a corrugated board sheet which is formed to have dimensions of a plurality of board boxes wherein the yield of the board sheet and the production efficiency are enhanced and a countermeasure can be taken against paper powder.

Abstract: A counter ejector is configured to receive a sheet-shaped corrugated board box forwarded from an upstream side by the hopper and to eject the sheet-shaped corrugated board box in units of batch. The counter ejector includes a front stop defining a hopper for stopping the sheet-shaped corrugated board box forwarded from the upstream side; an elevator including a mount that receives the sheet-shaped corrugated board box falling after hitting the front stop; a ledge activated when the number of sheet-shaped corrugated board box forming a stack piled on the mount reaches a predetermined number for receiving a sheet-shaped corrugated board box that is to form a next stack; a support ledge disposed under a front of the hopper for receiving the stack formed on the ledge; and a position setting mechanism that variably sets a vertical position of the support ledge.

Abstract: A method of applying glue to a gluing margin of the corrugated board sheet includes the steps of: applying pressure on the glue gun by a first pressure device to compensate self-weight of the glue gun; detecting a reaction force of the gluing margin by a reaction-force sensor on a downstream side of a slotter creaser arranged on an upstream side of the glue gun, the gluing margin being compressed in the slotter creaser; and applying pressure on the gluing margin by a second pressure device, the pressure to be applied by the second pressure device being set in accordance with a detection value of the reaction-force sensor.

Abstract: In a printer for corrugated cardboard sheets and a box making machine for corrugated cardboard sheets, a control device that controls an operation of an air cylinder is provided such that an ink supply roll is moved toward or away from a printing cylinder relative to an intermediate position of a gap between ends of a printing plate attached on a surface of a printing cylinder. With this configuration, ink of an ink supply roll is appropriately transferred to the printing plate, an ink film on the printing plate is uniformized, and then printing precision is enhanced.

Abstract: There is provided a defective product removing device for a box macking machine that removes a sheet material as a defective product from a manufacturing line for manufacturing a box by processing the sheet material, the defective product removing device including: a quality determining device for determining the quality of the sheet material based on a predetermined inspection result with respect to the sheet material conveyed in the manufacturing line; a defective product removing portion for removing the sheet material of which a surface is subjected to creasing processing and slotting and which is not folded yet from the manufacturing line; and a sorting device for operating the defective product removing portion with respect to the sheet material determined as a defective product by the quality determining device.

Abstract: A nonconforming product removing unit is disposed between a folding unit and a counter ejector of a box making machine, and includes a sort-out unit that conveys a corrugated board box whose joint is judged to be good by a judging unit to the counter ejector, and on the other hand discharges a corrugated board box whose joint is judged to be bad by the judging unit. Accordingly, only the conforming corrugated board box can be conveyed to the counter ejector. Therefore, the nonconforming board box can be removed easily, without requiring complicated work of taking out the nonconforming corrugated board box from among corrugated board boxes sorted into a predetermined number of batches by the counter ejector, and re-sorting only the conforming corrugated board boxes into a predetermined number of batches.

Abstract: In a printing press and a method, provided are an offset rotary press for printing predetermined information on a web using a printing plate, a printer for digitally printing specific information desired by a reader and reader identification information at a specific location on a web surface, and a dispatch system for reading the reader identification information on a newspaper, thereby sorting the newspaper by delivery destination. The offset rotary press and the printer are collectively driven by a controller, thereby improving the productivity of printed matter.

Abstract: A swing roll 36 is arranged over a gluing roll 14 and is configured to be movable in the direction of the arrow, so that the number of flute tips of a single faced corrugated cardboard k that are to be concurrently in contact with the gluing roll 14 at a nip N between the gluing roll 14 and a pressure roll 20 can be adjusted, and an amount of glue to be applied to each flute tip m of the single faced corrugated cardboard k can be optimized. In addition, since the pressure roll 20 is arranged on the same horizontal level as the gluing roll 14, influence of a bend caused by the weight of the pressure roll 20 can be avoided and the glue can be applied evenly in the width direction. The single faced corrugated cardboard k is wrapped around the pressure roll 20 at the exit of a nip N to allow a splash s of glue to return to a glue bath 12. Additionally, this configuration makes the single faced corrugated board to leave the surface of the gluing roll at a constant point d.

Abstract: In a printing blanket, a manufacturing method of the printing blanket, a blanket cylinder, and a printing press, a printing unit is configured to include a plate cylinder to which a plate is attached, and a blanket cylinder that has a blanket attached thereto, rotates synchronously with the plate cylinder, and can transfer an ink image transferred from the plate cylinder onto a web, a circumference of the blanket cylinder is set to be twice as large as a circumference of the plate cylinder, and a notch and a concave portion along an axial direction are provided on a surface of the blanket at a uniform interval to correspond to a notch of the plate cylinder.

Abstract: A blade mount is brought into contact with the outer circumference face of knife cylinder such that penetrating hole having a larger diameter on the blade mount faces a stopping member of sliding member. Resilient force is generated between an active-force generator and the sliding member and thereby the stopping member is projected externally from the outer circumference face of the knife cylinder. The blade mount is slid with respect to the outer circumference face of the knife cylinder such that the inner wall of penetrating hole having a smaller diameter formed on the blade mount is fitted into the space between the outer circumference of the knife cylinder and the stopping member, so that the blade mount is fixed to the outer circumference face of the knife cylinder.

Abstract: Each of an intermediate transfer blanket and an intermediate transfer body for electrophotographic printing uses liquid toner for transferring the liquid toner in which toner particles formed by a thermoplastic material and a pigment are distributed and mixed in a petroleum solvent in the liquid toner, and a conducting layer that is formed by urethane rubber is provided on a front surface of a blanket, thereby realizing high-quality electrophotographic printing.

Abstract: Reconditioning is performed such that the curvature of the arcuate surface of the crest on the upper corrugating roll is increased as compared before conditioning. Further, reconditioning is performed such that the curvature of the arcuate surface of the crest on the lower corrugating roll is increased as compared before conditioning. In this step, polishing is performed so as to maintain the maximum diameter of the crest on the upper corrugating roll as much as possible. Thereby, since the length of the inclined surface of the corrugating roll connecting between a crest and a trough of the upper and lower corrugating rolls and is reduced, the rate of the increase in the consumption of corrugated mediums of fluted corrugated mediums for double-faced corrugated cardboard sheets shaped by the upper and lower corrugating rolls and after reconditioning can be reduced.

Abstract: An object of the present invention is to provide a printing control method and a printing controller which are capable of performing high-quality printing in a short period of time, and which are capable of reducing human error. To achieve this end, the printing control method is used to control a printing system, which is equipped with a server to store printing data which contains platemaking data and related information, a printing machine equipped with a plurality of printing presses, a terminal unit for acquiring the printing image data and outputting command information to the printing machine, detectors for detecting a state of a printed page, and controllers for controlling the printing presses based on the printing data and detection information.

Abstract: The objects is to rapidly position and fix a blade swivel to a knife cylinder in a rotary die cutter and to abate abrasion of the inner end of an extrusion member that is brought into contact with an extruding unit. A wooden pattern 22 in which a punching blade 20 is embedded is installed to a blade swivel 18. A knife cylinder 16 includes first penetrating holes 76 accommodating first extruding pins 74 while the blade swivel 18 includes a second penetrating holes 80 accommodating second extruding rod 82. The first extruding pin 74 can be brought into contact with the second extruding rods 82, and an eccentric cylinder 72 extrudes the first extruding pins 74 to further extrude a punched chip a sandwiched between a punching blade 20. At the inner opening of each second penetrating hole 80, a recess groove 98 is formed along the axis direction of the knife cylinder.

Abstract: An upper slotter knife is divided into a slotter knife body and a division, and the position of the division relative to a sliding member in which a flap cutter knife is embedded is determined and fixed such that a distance between a nick formed on a cutting blade of the division and the tip of a flap cutter knife is minimized. The presence of the nick makes it possible to form a connection between the slotted chip and the flap chip even when the sizes and the shapes of the corrugated sheet and the joint margin vary. The presence of the connecting point makes it possible to remove the flap chip together with the slotted chip, so that scattering of the flap chip and inferior gluing of the joint margin can be prevented.

Abstract: A lateral register correcting device includes, a first adjusting unit that comprises a plurality of the pressing members arranged in a central area in the width direction of the web, a second adjusting unit that comprises one or more of the pressing members arranged in an outer area in the width direction of the web than the first adjusting unit, and an adjusting system that can adjust a pressure amount in the central area in the width direction of the web and a pressure amount in the outer area in the width direction of the web to different values through the first and second adjusting units. The pressing members are pressure rollers in a disc shape, and the pressure rollers of the second adjusting unit have an outer diameter set larger than that of the pressure rollers of the first adjusting unit.

Abstract: A heat-resistant laminated conveyer belt includes a fluororesin-coated core and a reinforcement layer which is formed on the core through an adhesive layer. The core is obtained by impregnating an aramid fiber woven fabric in a fluororesin dispersion and drying and sintering the fabric. The reinforcement layer is obtained by impregnating an aramid fiber woven fabric to which stretch properties are applied in a fluororesin dispersion and drying and sintering the fabric. The aramid fiber woven fabric of the core is a woven fabric by a plain-weave seamless loom or a circular loom. The aramid fiber woven fabric of the core includes an S-twist weft yarn and a Z-twist weft yarn which are alternatively arranged.

Abstract: A lateral register correcting device is capable of correcting register movement for a web by printing units. A register mark is printed on front and back sides of the web. A register correction control unit automatically controls a register correcting mechanism in real time based on a register correction amount derived by a pair of register cameras for detecting the register mark. A fan out correction control unit automatically controls a roller pressing mechanism in real time based on a fan out correction amount derived by a pair of fan out cameras for detecting the register mark.

Abstract: A device for manufacturing a corrugated cardboard sheet includes a conveyor which conveys a corrugated medium and a liner, a starch applicator which is arranged along a conveying path of the corrugated medium and the liner and applies liquid starch to flute tops of the corrugated medium, a bonding unit which bonds the liner and the corrugated medium by placing the liner on the corrugated medium to which the liquid starch is applied and by heating and pressing the corrugated medium and the liner to gelatinize the liquid starch; and a spraying unit which is arranged on an upstream side of the bonding unit and sprays moist air on the flute tops of the corrugated medium to which the liquid starch is applied.