Abstract: A slitter device includes an upper rotary shaft and a lower rotary shaft that are supported so as to be able to rotate. An upper slitter head that is supported by the upper rotary shaft so as to be able to rotate therewith. A lower slitter head that is supported by the lower rotary shaft so as to be able to rotate therewith and that is disposed on one side of the upper slitter head in the axial direction of the lower rotary shaft. An upper movement device that can move the upper slitter head in the axial direction of the upper rotary shaft. A lower movement device can move the lower slitter head in the axial direction of the lower rotary shaft. A control device that controls movement of the upper movement device and the lower movement device.

Abstract: A defect detecting device is provided for a corrugated cardboard sheet having one surface formed with a recessed portion of a first score in a thickness direction and another surface formed with a recessed portion of a second score having a smaller depth in the thickness direction. The device includes: a measurement device configured to measure a distance from an arrangement position to a front end of the sheet and a distance from the arrangement position to the recessed portion of the first score or the second score to acquire a measured distance; and a determination device configured to perform comparison of the measured distance with a threshold value in a determination region that is predetermined and preset from the front end toward a back end of the corrugated cardboard sheet to determine a front/rear surface defect or a front/back side defect of the sheet.

Abstract: A printing device, a printing machine, and a box making machine are provided with printing cylinders on which printing plates can be mounted, ink supply rolls that are placed on the upstream or downstream sides of the printing cylinders in a sheet-conveying direction and that can be in contact with the printing cylinders, ink supply units that can supply ink to the ink supply rolls, first covers that cover the upper parts of the printing cylinders in the vertical direction and that can be opened and closed, and footholds that cover the vertically upper parts of the ink supply rolls and that can be operated by an operator.

Abstract: This production machine diagnosing system and method, box making machine, and remote monitoring system include a data collecting unit for collecting operation data of a plurality of drive devices, and a diagnosing unit for detecting an abnormality on the basis of the operation data of the plurality of drive devices collected by the data collecting unit, wherein the diagnosing unit comprises: a first diagnosing unit which, when a first drive device among the plurality of drive devices, for driving an apparatus that conveys a sheet, is driven, detects an abnormality on the basis of the operation data of the first drive device; and a second diagnosing unit which, when a second drive device other than the first drive device, among the plurality of drive devices, is driven, detects an abnormality on the basis of the operation data of the second drive device.

Abstract: A cutting waste removing device, installed in a box making machine for manufacturing corrugated cardboard boxes from a corrugated cardboard sheet, to remove cutting waste generated in a cutting process performed by a paper discharging unit of the box making machine, is provided with an air blowing device which is disposed along a travel region in a device width direction, through which cut processed portions of the corrugated cardboard sheet and the cutting waste travel, and which ejects air toward the cutting waste in such a way as to include a vertically downward directional component in a prescribed ejection mode, and a control device for performing intermittent on-off control of the operation of the air blowing device, wherein the control device controls the air blowing device to be on only at a timing at which the cutting waste passes through an air ejection region of the air blowing device.

Abstract: A printing device, a printing machine, and a box making machine are provided with printing cylinders on which printing plates can be mounted, ink supply rolls that are placed on the upstream or downstream sides of the printing cylinders in a sheet-conveying direction and that can be in contact with the printing cylinders, ink supply units that can supply ink to the ink supply rolls, first covers that cover the upper parts of the printing cylinders in the vertical direction and that can be opened and closed, and footholds that cover the vertically upper parts of the ink supply rolls and that can be operated by an operator.

Abstract: Provided are a slotter head, a slotter device and a box making machine comprising a cutter holder which is in a disk shape and is rotationally supported, a first cutting blade which is mounted to an outer peripheral portion of the cutter holder, a moving holder which is supported by the cutter holder movably along the circumferential direction, a second cutting blade which is mounted to an outer peripheral portion of the moving holder, a first drive device which rotationally drives the cutter holder, and a second drive device which rotationally drives the moving holder.

Abstract: A slitter device includes an upper rotary shaft and a lower rotary shaft that are supported so as to be able to rotate. An upper slitter head that is supported by the upper rotary shaft so as to be able to rotate therewith. A lower slitter head that is supported by the lower rotary shaft so as to be able to rotate therewith and that is disposed on one side of the upper slitter head in the axial direction of the lower rotary shaft. An upper movement device that can move the upper slitter head in the axial direction of the upper rotary shaft. A lower movement device can move the lower slitter head in the axial direction of the lower rotary shaft. A control device that controls movement of the upper movement device and the lower movement device.

Abstract: A viscosity measurement device includes a measurement tool having a pump for feeding a printing liquid by pressure. The viscosity measurement device includes a passage part having a first passage part in which a flow path cross-sectional area for the printing liquid is set at a first area, and a second passage part in which a flow path cross-sectional area for the printing liquid is set at a second area smaller than the first area and which is arranged on an upstream side in a supply direction of the printing liquid with respect to the first passage part, the passage part being interposed in the supply path and arranged upward toward a downstream side in the supply direction of the printing liquid; and a sensor attached to the second passage part and measuring the fall time of the measurement tool in a prescribed vertical region in the second passage part.

Abstract: A viscosity measurement device includes a measurement tool having a pump for feeding a printing liquid by pressure. The viscosity measurement device includes a passage part having a first passage part in which a flow path cross-sectional area for the printing liquid is set at a first area, and a second passage part in which a flow path cross-sectional area for the printing liquid is set at a second area smaller than the first area and which is arranged on an upstream side in a supply direction of the printing liquid with respect to the first passage part, the passage part being interposed in the supply path and arranged upward toward a downstream side in the supply direction of the printing liquid; and a sensor attached to the second passage part and measuring the fall time of the measurement tool in a prescribed vertical region in the second passage part.

Abstract: A sheet feeder includes: a wheel for issuing a lowermost sheet out to a sheet processing unit; a grate for spacing the sheet apart from the wheel at a raised position and bringing the sheet into contact with the wheel at a lowered position; and a drive device for driving the grate up and down. The drive device includes: a link mechanism for movably supporting the grate; a spring for urging the grate to the lowered position; a grate raising/lowering cam for periodically driving the grate up/down; and a skip feed cam that is driven by a control device, separately from a drive system of the grate raising/lowering cam, and that, at a timing where reached is a phase at which the grate raising/lowering cam does not put the grate in the raised position, retains the grate at the raised position in order to skip feeding of the sheet.

Abstract: A sheet feeder includes: a wheel for issuing a lowermost sheet out to a sheet processing unit; a grate for spacing the sheet apart from the wheel at a raised position and bringing the sheet into contact with the wheel at a lowered position; and a drive device for driving the grate up and down. The drive device includes: a link mechanism for movably supporting the grate; a spring for urging the grate to the lowered position; a grate raising/lowering cam for periodically driving the grate up/down; and a skip feed cam that is driven by a control device, separately from a drive system of the grate raising/lowering cam, and that, at a timing where reached is a phase at which the grate raising/lowering cam does not put the grate in the raised position, retains the grate at the raised position in order to skip feeding of the sheet.

Abstract: A folder/gluer unit includes an upper transfer belt that transfers a corrugated sheet in a direction of transfer, a pair of forming belts that abut against a folding surface which is formed by folding both end portions of the corrugated sheet in a width direction orthogonal to the direction of transfer and fold both of the end portions of the corrugated sheet in the width direction, a pair of folding bars that are disposed in the direction of transfer, abut against the folding surface at both of the end portions of the folded corrugated sheet in the width direction, and guide both of the end portions of the corrugated sheet in the width direction, a moving mechanism that moves the pair of folding bars in the width direction and in a vertical direction, and a control unit that controls the moving mechanism to adjust a position of the folding bar.

Abstract: A gluing device has a sheet guide for guiding a corrugated fiberboard; a basal part having a fixed relative position with respect to the sheet guide; a support part moveable with respect to the basal part; a glue gun for contacting and applying glue to a glued portion within a seam margin at a side edge of a corrugated fiberboard passing through the sheet guide; a first energizing mechanism for energizing the support part towards the sheet guide; a second energizing mechanism for energizing the support part away from the sheet guide; and a position adjustment mechanism arranged between the first energizing mechanism and the basal part, for steples sly adjusting the position of the support part in a direction lying in the direction of the force exerted by the first energizing mechanism, and adjusting the gap between the glue gun and the sheet guide.

Abstract: An apparatus includes a washing water supplying path connected to an ink chamber, including a seal blade and a doctor blade slidably contacting an outer circumference of an anilox roll; a washing water supplier for supplying washing water to an inside of the ink chamber through the washing water supplying path; a supplying path opening/closing device that opens and closes the washing water supplying path; a washing water recovering paths connected to the ink chamber; a suction recovering device that recovers the washing water in the ink chamber by suction through the washing water recovering path; and a controller that controls operations of the washing water supplier, the supplying path opening/closing device, and the suction recovering device. The control mode includes a decompression control mode in which the seal blade is elastically deformed towards the ink chamber by decompressing the inside of the ink chamber by recovering the washing water.

Abstract: An apparatus includes a washing water supplying path connected to an ink chamber, including a seal blade and a doctor blade slidably contacting an outer circumference of an anilox roll; a washing water supplier for supplying washing water to an inside of the ink chamber through the washing water supplying path; a supplying path opening/closing device that opens and closes the washing water supplying path; a washing water recovering paths connected to the ink chamber; a suction recovering device that recovers the washing water in the ink chamber by suction through the washing water recovering path; and a controller that controls operations of the washing water supplier, the supplying path opening/closing device, and the suction recovering device. The control mode includes a decompression control mode in which the seal blade is elastically deformed towards the ink chamber by decompressing the inside of the ink chamber by recovering the washing water.

Abstract: A conveyor that is disposed at a printing unit of a box making machine and conveys a corrugated sheet 10a that is to undergo printing, includes: a conveyor belt 23 having a conveying face that conveys the corrugated sheet; a suction box 24a that is disposed at a side of a back 23b of the conveying face of the conveyor belt and that suctions the corrugated sheet onto the conveying face with negative pressure; a plurality of guide rolls that guide or drive the conveyor belt. Air blowing means is disposed on the back side of the conveyor belt within a region from an outlet roll to an inlet roll of the guide rolls and blows air to an outside.

Abstract: In a printing machine that carries out printing while circulating a printing solution, the device inhibits foaming of the ink so that the viscosity of the ink is efficiently controlled. In a printing machine that carries out printing while circulating the printing solution containing a resin component to be transferred to the surface to be printed and a surfactant through a circulation route (10), the device supplies a viscosity adjusting solution that controls the viscosity of the printing solution to the printing solution containing foam generated on the circulation route (10) to break the foam.

Abstract: A folder/gluer unit includes an upper transfer belt that transfers a corrugated sheet in a direction of transfer, a pair of forming belts that abut against a folding surface which is formed by folding both end portions of the corrugated sheet in a width direction orthogonal to the direction of transfer and fold both of the end portions of the corrugated sheet in the width direction, a pair of folding bars that are disposed in the direction of transfer, abut against the folding surface at both of the end portions of the folded corrugated sheet in the width direction, and guide both of the end portions of the corrugated sheet in the width direction, a moving mechanism that moves the pair of folding bars in the width direction and in a vertical direction, and a control unit that controls the moving mechanism to adjust a position of the folding bar.

Abstract: A conveyor that is disposed at a printing unit of a box making machine and conveys a corrugated sheet 10a that is to undergo printing, includes: a conveyor belt 23 having a conveying face that conveys the corrugated sheet; a suction box 24a that is disposed at a side of a back 23b of the conveying face of the conveyor belt and that suctions the corrugated sheet onto the conveying face with negative pressure; a plurality of guide rolls that guide or drive the conveyor belt. Air blowing means is disposed on the back side of the conveyor belt within a region from an outlet roll to an inlet roll of the guide rolls and blows air to an outside.