Abstract: For effective achievement of an increase in productivity, prolongation of the life cycle of a consumable part, a decrease in the running cost, a lighter burden on the operator's work, and a reduction in spending on plants and equipment, a sheet transport apparatus comprises: a folding cylinder (11) for transporting sheets one by one or as a stack of a plurality of the sheets; a jaw cylinder (12) or a reduction cylinder (13) for holding the sheets by alternate ones of holding means and transporting the sheets when the sheets are transported as the stack of the plurality of sheets; an upper transfer cylinder (14) opposing the jaw cylinder or the reduction cylinder; a lower transfer cylinder (15) opposing the jaw cylinder or the reduction cylinder; and switching means for transporting the sheets from the jaw cylinder or the reduction cylinder to the upper transfer cylinder and the lower transfer cylinder, while allocating the sheets to the upper transfer cylinder and the lower transfer cylinder, when the sheets

Abstract: A cleaning apparatus includes a first liquid supply unit, second cylinder, cleaning unit, third cylinder, second liquid supply unit, first cleaning liquid supply unit, and controller. The first liquid supply unit supplies a transfer liquid to a first cylinder. The second cylinder performs transfer to one surface of a transfer target body with the transfer liquid transferred from the first cylinder. The cleaning unit cleans the circumferential surface of the second cylinder in contact with it. The third cylinder is arranged to oppose the second cylinder and performs transfer to the other surface of the transfer target body. The second liquid supply unit supplies the transfer liquid to the third cylinder. The first cleaning liquid supply unit supplies a cleaning liquid to at least one of the first cylinder and the third cylinder. The controller controls the control unit to clean the second cylinder while the second cylinder is in contact with the first cylinder and the third cylinder.

Abstract: According to a drive control method and apparatus, an offset printing section and an intaglio printing section are connected together by a gear train. Separately from an offset printing section prime motor for driving an entire sheet-fed printing press, an intaglio printing section auxiliary motor is provided in the intaglio printing section where load is heaviest and load variations are great. By so doing, the entire sheet-fed printing press is driven by the offset printing section prime motor and the intaglio printing section auxiliary motor. Moreover, the electric current value (driving torque value) of the intaglio printing section auxiliary motor is controlled in accordance with an electric current value (torque value) for driving the offset printing section prime motor, the torque distribution rate of the intaglio printing section auxiliary motor, and the rated electric current value of the intaglio printing section auxiliary motor.

Abstract: In a printing press including a printing section to print patterns, a register apparatus captures an image of register marks printed in the printing section, and causes positions of the patterns, which are to be printed in the printing section, to be in register on the basis of positions of the register marks in the image. The register apparatus comprises: a front surface camera or a back surface camera for capturing an image of an edge of a print sheet together with the register marks, the print sheet already subjected to printing in the printing section; and a first-color register adjustment mechanism, a second-color register adjustment mechanism, a third-color register adjustment mechanism and a fourth-color register adjustment mechanism for adjusting the positions of the patterns to be printed in the printing section, on the basis of the positions of the register marks in the image and a position of the edge of the print sheet in the image.

Abstract: Provided is a method for adjusting color tones of a printed matter. The method includes a displaying step of displaying an image of a printed matter on a display apparatus (119) by use of plate data used when a pattern is printed on a printing plate used in printing performed by a printing press, and an adjusting step in which an operator adjusts the color tones of the printed matter while referring to the printed matter displayed on the display apparatus (119). The method for adjusting color tones of a printed matter includes a reference-image displaying step of displaying a reference image of displaying an image of a printed matter obtained when a supply amount ink used in the printing is adjusted, for reference. In the adjusting step, the operator adjusts the color tones of the printed matter on the basis of the supply amount of the ink in the printing press while referring to the image of the printed matter displayed in the reference-image displaying step.

Abstract: A drive control method for a sheet processing machine includes the steps of operating a driving motor of a sheet feed device which feeds a sheet to a sheet processing device that processes the sheet, in synchronism with a rotary member of the sheet processing device, and adjusting a rotary phase of the rotary member of the sheet processing device and a rotary phase of the driving motor of the sheet feed device relative to each other.

Abstract: An intaglio printing press includes, a rotary screen comprising a hollow cylinder, which has a small hole group for special ink supply formed in a circumferential surface of the hollow cylinder and which is supported rotatably, and a squeegee contacting an inner peripheral surface of the hollow cylinder, a rubber roller supported rotatably to oppose an outer peripheral surface of the hollow cylinder at a position where the squeegee contacts the inner peripheral surface of the hollow cylinder, and a sheet supplied with special ink, which has been stored within the hollow cylinder, by the squeegee via the small hole group of the hollow cylinder. The intaglio printing press further includes special ink guide means, such as guide grooves, for guiding a surplus of the special ink, which is not supplied to the sheet by the squeegee, to the small hole group of the hollow cylinder.

Abstract: A feed apparatus for a printing press includes a first sucker device and a second sucker device. The first sucker device includes a guide nozzle, a sucker which is supported by said guide nozzle to be vertically movable and includes a chuck hole at a bottom for chucking the sheet, and a spring which biases said sucker toward a distal end of said guide nozzle. The guide nozzle includes a first air passage for drawing the sheet and a second air passage for drawing said sucker. The sucker includes a closing portion which closes said second air passage when said sucker is located at an upper limit against a biasing force of said spring.

Abstract: A sheet dryer includes: a coating section 10 which includes a single coating unit coating a paper sheet W transported by a transport part with a UV varnish; a first chain conveyor 20 which does not have a guide surface coming into contact with the UV-varnish coated surface of the paper sheet W passed over from the coating section 10, and which has a transport distance L2 longer than a transport distance L1 of the single coating unit; a transport cylinder 22 which transports the paper sheet W passed over from the first chain conveyor 20; and an LED-UV drying device 30 which is disposed in the vicinity of the transport cylinder 22, faces the UV-varnish coated surface of the paper sheet W held by the transport cylinder 22, and cures the UV varnish on the paper sheet W.

Abstract: A lead-in roller clearance adjustment mechanism includes a pair of lead-in rollers for guiding a web with a clearance therebetween and a clearance adjustment mechanism for adjusting an amount of clearance. The lead-in roller clearance adjustment mechanism further includes motors for driving the clearance adjustment mechanism and potentiometers for detecting output positions of these motors, and adjusts the amount of clearance automatically. A clearance adjustment device includes a control device for an automated paper threading device and for clearance adjustment between the lead-in rollers, a web thickness of the web being inputted in the control device, the control device controlling the motors to set the amount of clearance at a predetermined value before threading the web into a lead-in roller unit, and to set the amount of clearance at a value corresponding to the inputted web thickness of the web after threading the web into the lead-in roller unit.

Abstract: In a sheet delivery/guide apparatus, a sheet released from a convey device and falling piles on a first pile device. A first blowing device is arranged above the first pile device and blows toward the first pile device. An air controller selectively performs switching between an air supply state and an air supply stop state of the first blowing device for the sheet. A guide member is supported movably and guides the sheet that passes the first pile device while being held by the convey device. A guide member switching unit switches the guide member between a guide position to enter a sheet falling path, extending from the convey device to the first pile device, to guide the sheet, and a retreat position to retreat from the sheet falling path. A controller controls the air controller and the guide member switching unit on the basis of a convey speed of the convey device.

Abstract: An abnormal sheet delivery detection device includes a convey device, first pile device, noncontact-type detection unit, and first releasing unit. The convey device includes a sheet holding unit for holding a sheet, and conveys the sheet held by the sheet holding unit. The sheet released from the sheet holding unit is piled on the first pile device at a predetermined sheet release position. The noncontact-type detection unit arranged downstream of the sheet release position in a sheet convey direction detects a presence/absence of the sheet. The first releasing unit selectively switches between a first state wherein the sheet held by the sheet holding unit is released and piled on the first pile device, and a second state wherein the sheet held by the sheet holding unit is conveyed downstream in the sheet convey direction by the first convey device without releasing the sheet.

Abstract: An intaglio printing press includes: an intaglio cylinder; an ink collecting cylinder which has a blanket attached to a circumferential surface of the collecting cylinder, is in contact with the intaglio cylinder, and transfers ink onto the intaglio cylinder; multiple chablon rollers which are in contact with the ink collecting cylinder and transfer ink onto the ink collecting cylinder; and an inking device which feeds ink to the chablon rollers. In the intaglio printing press, a work space is formed between the chablon roller located at the highest position and the chablon roller immediately below the highest chablon roller. The work space allows an access to the ink collecting cylinder without detachment of the chablon rollers.

Abstract: A transport apparatus, including a first transport portion for transporting one signature, a second transport portion for transporting other signature, and a fan wheel for entering both sheets, which have been transported by the first and second transport portions, between vanes thereof, and rotationally transporting the sheets, comprises: a main frame for supporting the first transport portion and the fan wheel; a movable frame for supporting the second transport portion; a first adjusting device for moving the main frame and the movable frame by the same amount; and a second adjusting device for moving the movable frame relative to the main frame.

Abstract: A cylindrical body supporting device includes a pair of holders for respectively supporting both end sides in an axial direction of a rotary screen cylinder, and a pair of first eccentric bearings for rotatably supporting the pair of holders. The cylindrical body supporting device also includes an adjusting screw, a spur gear, a spline gear, lateral motors and the like collectively used for moving the pair of holders through the pair of first eccentric bearings, and a control device for activating the lateral motors to allow the pair of holders to approach and recede along the axial direction and thereby to support and release the cylindrical body and for activating the lateral motors to synchronously move the pair of holders in an identical amount in the same direction along the axial direction and thereby to move the cylindrical body in the axial direction.

Abstract: Provided is a quality inspection apparatus including: gripper units provided to each delivery chain, each gripper unit configured to hold an end portion of a sheet; an arc-shaped track portion provided in a part of a movement track of the gripper units and formed by the movement track; an inspection unit installed at an opposite side of the arc-shaped track portion from an arc center of the arc-shaped track portion; and a vacuum cylinder installed at the same side of the arc-shaped track portion as the arc center. In the apparatus, while running along the arc-shaped track portion, the sheet is inspected by the inspection unit under a guidance of the vacuum cylinder.

Abstract: A sheet guide apparatus includes an impression cylinder having a gripper device for holding a thin sheet or a thick sheet and adapted to transport the thin sheet or the thick sheet, and an air blowing device comprising an air discharge duct and discharge nozzles for blowing air on the thin sheet or thick sheet being transported by the impression cylinder. The sheet guide apparatus comprises: a displacement gauge for detecting the distance to the thin sheet or thick sheet being transported by the impression cylinder; and a control device for controlling the air blowing device, based on the detection results of the displacement gauge, to adjust the flow rate of discharged air so that the distance between the thin sheet or thick sheet and the displacement gauge becomes a distance which prevents the unstable motion of the thin sheet or thick sheet.

Abstract: A printing press includes: a printing unit which performs offset printing on a sheet; a machining unit including a rotary die which performs a punching process for the sheet subjected to the printing by the printing unit; a first motor which drives an impression cylinder and the like of the printing unit; a second motor which drives the rotary die and the like of the machining unit; and a control device which controls the drives of the first motor and the second motor to be synchronized with each other.

Abstract: A sheet delivery apparatus includes sprockets and delivery grippers, a sheet delivery device, a switching cam, and conveyor belt, driving roller, and driven roller. The sprockets and delivery grippers hold and convey a sheet. The sheet delivery device delivers the sheet conveyed by the sprockets and delivery grippers. The switching cam is arranged upstream of the sheet delivery device in a sheet convey direction to release the sheet held by the sprockets and delivery grippers. The conveyor belt, driving roller, and driven roller are arranged below the switching cam to convey the sheet released by the switching cam in the sheet convey direction.

Abstract: A cleaning apparatus includes a liquid supply device and cleaning unit. The liquid supply device supplies a transfer liquid to a first cylinder. The transfer liquid supplied from the liquid supply device to the first cylinder is transferred to a transfer target body which comes into contact with the first cylinder. The cleaning unit comes into contact with and cleans the first cylinder. The cleaning unit is arranged downstream of a contact position where the first cylinder is in contact with the transfer target body in a rotational direction of the first cylinder, and upstream of a liquid receiving position where the first cylinder receives a liquid supplied from the liquid supply device in a rotational direction of the first cylinder.