Mitsubishi Heavy Industries Printing & Packaging Machinery, Ltd.

Mitsubishi Heavy Industries Machinery Systems, Ltd.

Mitsubishi Heavy Industries Limited

Mitsubishi Jukogyo Kabushiki Kaisha

Mitsubishi Heavy Industries Printing & Machinery, Ltd.

Osamu Hatano

Mitsuhiro Nadachi

Kazuya Sugimoto

Shinya Iori

Hironari Yamada

Yasuyuki Baba

Toshiaki Miyakura

Osamu Yamamoto

Kunihiko Yamamuro

Yasunari Suzuki

Kazuhiro Ando

Masahiro Taketsugu

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.

Cutting waste removing device, slotter device, and box making machine

The versatility of a slotter device, a sheet slicing method and a carton former is improved by providing first slotter heads and first lower blades, first slotter knives and second slotter knives mounted on the circumferences of the first slotter heads, second slotter heads and second lower blades, third slotter knives and fourth slotter knives mounted on the circumferences of the second slotter heads, third slotter heads and third lower blades, and fifth slotter knives and sixth slotter knives mounted on the circumferences of the third slotter heads, to process cuts of differing lengths.

Slotter device, sheet slicing method, and carton former

Provided are a sheet stacking device, a counter ejector and a box making machine, wherein: a hopper unit stacks sheet-like cardboard boxes; feeding rolls feed a cardboard box to the hopper unit; and a guiding device is disposed between the feeding rolls and the hopper unit and includes a first guide part that extends in a horizontal direction and guides a lower surface of the cardboard box and a second guide part that extends in a vertical direction and guides a rear end of the cardboard box. Due to this configuration, the occurrence of damage to box making sheets in high-speed conveying of the box making sheets can be suppressed and the box making sheets can be appropriately stacked in a prescribed posture.

Sheet stacking device, counter ejector and box making machine

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.

Sheet feeder

A flexographic printer is provided with: a printing plate for transferring ink at an ink transfer site to an object to be printed S; an anilox roll for supplying ink to the printing plate at an ink supply site; a plate cylinder on which the printing plate is wound and rotated; and an ink solvent supply unit for supplying a solvent for the ink on the surface of the printing plate in a post-ink transfer region that is downstream of the ink transfer site in the plate cylinder rotation direction and upstream of the ink supply site in the plate cylinder rotation direction.

Flexographic printer and box-making machine

A squaring device provided to a counter ejector part that stops flat cardboard boxes fed from an upstream, using a front stop, in a downstream part of a box-manufacturing machine, receives and stacks the flat cardboard boxes in a stacking part in a hopper part, and ejects the stack as a batch. It includes a squaring plate that, while the stacking part retains in a stack position during a retention interval, squares the cardboard boxes stacked on the stacking part, in conjunction with the front stop, the retention interval being set in accordance with a feed speed of the cardboard boxes and a count setting for a stack of the cardboard boxes. A reciprocation driving unit drives the squaring plate to reciprocate toward and away from the front stop, and is configured to vary a speed ratio of a squaring speed for reciprocating the squaring plate, to the feed speed.

Squaring device and counter ejector, and box-manufacturing machine

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.

Sheet folding device and carton former

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.

Apparatus for washing off ink in flexographic printing press and method for washing off ink in flexographic printing press

A counter ejector disposed at a downstream part of a box former, the counter ejector including a hopper that receives a sheet-shaped corrugated board box being transferred from an upstream side and fallen; and a blower that downwardly blows air to a hopper from above the corrugated board box, wherein the blower is capable of changing a blowing area to be blown along a transfer direction of the corrugated board box, and blows air to the blowing area corresponding to at least the front-end portion and the rear-end portion of the hopper in the transfer direction if the corrugated board box has a possible maximum size in the transfer direction.

Counter ejector and box former

A blade mount is attached or detached without bolts to save the time for the attaching and the detaching. Consequently, the operation efficiency of the rotary die cutter is enhanced, which is intended to achieve. Two fixing rings are freely fitted to a knife cylinder and the driving unit rotates the screw axis to move moving mounts. Thereby, yoke plates disposed on the moving mounts move the fixing rings to the end portion of a blade mount, and then an activated unit activates fixing units to fix the fixing rings to the outer circumference face of the knife cylinder, so that the blade mount is fixed. After the fixing rings are fixed, the yoke plates are separated from the fixing rings, so that abrasion of the yoke plates can be avoided.

Blade mount of rotary die cutter, and method and device for fixing blade mount

A conveyor that is disposed at a printing unit of a box making machine and conveys a corrugated sheetthat is to undergo printing, includes: a conveyor belthaving a conveying face that conveys the corrugated sheet; a suction boxthat is disposed at a side of a backof 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.

Conveyor, printing device, and box making machine

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 (), 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 () to break the foam.

Device for managing printing solution in printing machine

It is an object is to improve the cleaning effect, to reduce the cleaning time, and to reduce the consumption of cleaning water during cleaning of an inside of an ink chamber of a flexographic printing machine. For cleaning an ink chamber, purge air 'a' is supplied from pipes-to the ink chamber, and an ink 'f' is collected from an ink supply pipeand an ink recovery pipeto an ink can. Subsequently, cleaning water &#x201c;w&#x201d; is supplied from the pipes-to the ink chamber, as well as defining a cleaning water circulatory passageconstructed from a three-way valve, an ink supply port, the ink chamber, excessive ink recovery ports, the ink recovery pipe, and a connecting pipefor circulating cleaning water &#x201c;w&#x201d; through the circulatory passageto clean inside the ink chamber. At the same time, compressed air &#x201c;a&#x201d; is supplied from a compressed air supply pipeof an air gunto generate bubbles in the cleaning water &#x201c;w&#x201d;, thereby improving the cleaning effect on the ink chamberby the agitating action and the turbulent flow generating action of the bubbles.

Method of and system for cleaning off ink in flexographic printing machine

It is intended to improve work efficiency by eliminating the work of attaching and removing push rods during installing and dismounting the a blade mount and also to reduce abrasion of the push rods for pushing punching scrap out of a punching blade. The first push rodsare inserted movably in the first through-holesformed in the knife cylinder and the second push rodsare inserted movably in the second through-holesformed in the blade mount to permit the second push rodsto be abutted on the first push rods. A scrap push leveris mounted on the outer end of the second push rodto push out the punching scrap a and an eccentric cylinderis provided inside of the knife cylinderto push the first push rodoutward when pushing out the punching scrap a. The stroke of the first push rodis controlled so that the outer endof the first push roddoes not project from the outer peripheryof the knife cylinder. The first push rodand the second push rodare preferably made from one of self-lubricating resin and abrasion-resistant material.

Punching scrap removal device and blade mount for rotary die cutter

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. A method for making a box of a corrugated board sheet by performing a box-making process of a board sheet (S) which is formed to have dimensions of a plurality of board boxes and the cutting the board sheet (S) into dimensions of one board box comprises a step (I) for cutting the board sheet (S) into dimensions of one board box by a cut line (k) in the direction intersecting the conveyance direction (a) along a box making line (PL) after a ruling and grooving step (C) and before a pasting and folding step (E), and a speed increase step (J) for spacing the board sheets (S) and (S) thus cut by a set dimension following to the cutting step (I) by increasing the speed of the board sheets (S) and (S) while conveying toward a subsequent step.

Growing community of inventors

Mihara, Japan

Osamu Hatano