JP2019025864A - Gravure printing device - Google Patents

Abstract

To provide a gravure printing device in which a furnisher roll can be efficiently exchanged.SOLUTION: A roll elevation mechanism 7 having a loading frame 12 on which a furnisher roll 4 can be loaded is provided below a printing unit 10, and the furnisher roll 4 is vertically moved between a truck 8 which approaches the printing unit 10 and a roll attachment/detachment position P of the printing unit 10. The printing unit 10 comprises a pair of support means 11 which can support each rotary shaft 4b of the furnisher roll 4. The support means 11 comprises a roll support arm 41 having a fitting recess 41a, and a support frame 44 which can open/close an opening portion of the fitting recess 41a. The roll support arm 41 is so oscillatively configured as to take a posture such that the opening portion of the fitting recess 41a is oriented downward at an upper position corresponding to the rotary shaft 4b of the finisher roll 4 which is loaded on the loading frame 12.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a gravure printing apparatus that transfers ink to a continuously conveyed web.

  Conventionally, a gravure printing apparatus capable of automatically exchanging a plate cylinder is generally known. For example, a gravure printing apparatus disclosed in Patent Document 1 includes a plurality of printing units with a plate cylinder detachably attached to an upper portion thereof, and is attached to each printing unit with respect to a web that sequentially passes through each printing unit. Printing is performed by sequentially transferring the ink adhering to the outer peripheral surface of the printing cylinder by a rotating operation. When exchanging the plate cylinder attached to the printing unit, first, the lifter provided at the lower part of the printing unit is raised, and the placing table of the lifter is put on standby under the used plate cylinder. Next, the pair of support shafts that support each end of the used plate cylinder are retracted to place the used plate cylinder on the mounting table, and then the lifter is lowered to enter the inside of the printing unit. The used plate cylinder is handed over to the empty carriage in the closed state, and the used cylinder is unloaded from the printing unit by retracting the carriage from the printing unit. After that, after the carriage enters the printing unit and a new plate cylinder is carried into the printing unit, the lifter is raised to the plate cylinder attaching / detaching position in the printing unit, and both the support shafts are moved forward to move both the support shafts. The new plate cylinder is attached to the printing unit by supporting each end of the new plate cylinder.

JP 2013-144384 A

  By the way, each printing unit of the gravure printing apparatus as described above is provided with a finisher roll for the purpose of replenishing ink to the outer peripheral surface of the plate cylinder, and the replacement work is also performed periodically in this finisher roll. It is common.

  However, the finisher roll is not structured to be attached to the printing unit by engaging a pair of support shafts at both ends thereof like a plate cylinder, but a pair of rotating shafts provided at both ends of the finisher roll. Generally, it is structured to be attached to the printing unit by rotatably supporting it on the printing unit side, and nothing has been thought about the structure of an apparatus for efficiently replacing such a finisher roll. I couldn't come.

  The present invention has been made in view of such a point, and an object of the present invention is to provide a gravure printing apparatus capable of efficiently replacing the finisher roll.

  In order to achieve the above object, according to the present invention, an elevating mechanism capable of elevating and lowering the finisher roll is provided in the printing unit, and the finisher roll is attached to and detached from the printing unit using the elevating operation of the elevating mechanism. It is characterized by such ingenuity.

  That is, in the first invention, a printing unit in which a plate cylinder and a finisher roll in contact with the outer peripheral surface of the plate cylinder are detachably attached at a roll attachment / detachment position, and the finisher roll can be placed, A carriage for carrying the finisher roll in and out of the printing unit by moving forward and backward to a position below the roll attaching / detaching position in the printing unit; and a placement frame on which the finisher roll can be placed, the placement frame Lifting and lowering means capable of moving the finisher roll up and down between the carriage that has entered the printing unit by the lifting operation and the roll attaching / detaching position, and the printing unit includes both end portions of the finisher roll. A pair of support means for rotatably supporting a pair of rotating shafts provided in the The rotation shaft can be switched between a first support member having a fitting recess that can be fitted in a direction orthogonal to the rotation shaft, and a first state in which the opening of the fitting recess is closed and a second state in which the opening is opened. A second support member, and is configured to be movable so that the opening portion of the fitting recess is directed downward at an upper position corresponding to each rotation shaft of the finisher roll that moves up and down by the lifting means. It is characterized by.

  According to a second invention, in the first invention, the second support member is rotatable about a rotation axis extending in the same direction as a roll axis direction of the finisher roll that is lifted and lowered by the lifting means. It is supported by the 1st support member, It is characterized by the above-mentioned.

  According to a third aspect, in the first or second aspect, the carriage is configured so that the center line of the plate cylinder extends in the same direction as the center line of the finisher roll, and the finisher It is configured so that it can be placed so as to be aligned with the finisher roll in a horizontal direction perpendicular to the center line of the roll, and at the roll attachment / detachment position, a first attachment / detachment position for attaching / detaching the plate cylinder, and the finisher roll being attached / detached The second attaching / detaching position is set, and the elevating means can raise and lower the mounting frame to the first attaching / detaching position and the second attaching / detaching position, respectively.

  According to a fourth invention, in the third invention, the printing unit can support an ink pan, and a first region below the first and second attachment / detachment positions and a second region other than the first region. Slide means capable of moving in the horizontal direction is provided, and the elevating means supports the ink pan located in the first region by the slide means from below and moves it up and down. It is configured to be possible.

  In the first invention, when removing the used finisher roll from the printing unit, the supporting means is moved so that the opening portion of each fitting recess faces downward, and the mounting frame of the elevating means is raised. When each second support member is switched to the second state in the state of being made, the opening portion of each fitting recess is opened, so that the used finisher roll is movable downward. Therefore, when the used finisher roll is supported by the placement frame and the placement frame is lowered, the used finisher roll comes off the first support member and moves down to the carriage, and the used finisher roll is lowered. The used finisher roll can be efficiently removed from the printing unit by using the carry-out operation of the nischer roll. Further, when a new finisher roll is attached to the printing unit, each support means is moved so that the opening portion of each fitting recess faces downward, and each second support member is switched to the second state. At the same time, a new finisher roll is carried into the printing unit by causing the carriage to enter the printing unit, and further, the new finisher roll is moved up by raising the mounting frame of the lifting means. Then, since each rotating shaft of a new finisher roll enters each fitting recess, each supporting means supports each rotating shaft by switching each second supporting member to the first state. In this manner, the new finisher roll can be efficiently attached to the printing unit by using the new finisher roll loading operation.

  In the second invention, at the time of switching between the first and second states in the second support member, the second support member does not take a posture of jumping out in the TD direction. Therefore, the attachment part of the finisher roll in the printing unit can be reduced in the TD direction, and the enlargement of the apparatus can be prevented.

  In the third invention, when the mounting frame of the elevating means is moved up and down to the first attaching / detaching position with the carriage entering the printing unit, the plate cylinder can be attached to and detached from the printing unit, while the lifting means is mounted. When the placement frame is raised and lowered to the second attachment / detachment position, the attachment / detachment work of the finisher roll with respect to the printing unit becomes possible. In this way, both the plate cylinder and the finisher roll can be carried in and out and attached to and detached from the printing unit with one carriage and one lifting means.

  In the fourth aspect of the invention, when the mounting frame of the elevating means moves up the ink pan located in the first region, the finisher roll is immersed in the ink accumulated in the ink pan and the printing apparatus is ready to start printing. In this way, the ink pan can be moved to a fixed position when printing is performed using the lifting means for moving the plate cylinder and the finisher roll, and a dedicated mechanism for moving the ink pan to the fixed position is provided. There is no need and it can be a low-cost device. On the other hand, when the plate cylinder and the finisher roll are attached to and detached from the printing unit, the ink pan can be moved to the second area that does not interfere with the lifting and lowering operation of the mounting frame. Therefore, the plate cylinder and the finisher roll can be attached and detached. Thus, it becomes possible to perform a work such as laying a curing film on the ink pan while performing the steps, and it is possible to shorten the time required for the setup change in the printing apparatus.

It is a schematic front view of the printing unit which shows the state which is transferring the ink with respect to the web conveyed continuously. It is an II arrow directional view of FIG. FIG. 2 is a view corresponding to FIG. 1, and shows a state immediately before finishing the cleaning of the finisher roll and starting the removal work, or a state in which the ink pan is moved up after the installation work of the finisher roll is completed. It is. It is IV arrow line view of FIG. FIG. 2 is a view corresponding to FIG. 1, showing a state immediately after the ink pan is moved from the first region to the second region, or a state immediately before the ink pan is moved from the second region to the first region. FIG. 6 is a view on arrow VI in FIG. 5. FIG. 2 is a view corresponding to FIG. 1, illustrating a state immediately after the finisher roll is removed from the roll support arm of the printing unit, or a state immediately before the finisher roll is attached to the roll support arm of the printing unit. It is a VIII arrow line view of FIG. FIG. 2 is a view equivalent to FIG. 1 and shows a state immediately after the roll support arm is moved to a position where it does not interfere with the plate cylinder removal work, or a state immediately before the roll support arm is moved to the installation position of the finisher roll. FIG. FIG. 10 is a view on arrow X in FIG. 9. FIG. 2 is a view corresponding to FIG. 1, showing a state immediately before removing the plate cylinder from the printing unit, or a state immediately after attaching the plate cylinder to the printing unit. It is a XII arrow line view of FIG. FIG. 2 is a diagram equivalent to FIG. 1, showing a state immediately after the used plate cylinder and the finisher roll removed from the printing unit are placed on the carriage, or a new plate cylinder and a finisher roll to be attached to the printing unit are attached to the printing unit. It is a figure which shows the state immediately after carrying in. It is a XIV arrow line view of FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The following description of the preferred embodiment is merely exemplary in nature.

  1 and 2 show a gravure printing apparatus 1 according to an embodiment of the present invention. The gravure printing apparatus 1 includes a plurality of printing units 10, and the printing units 10 are arranged in parallel along the conveyance direction of the web W1.

  The printing unit 10 includes a pair of side frames 10a extending vertically and a plate cylinder 2 in which a large number of printing cells are engraved on the outer peripheral surface.

  At the first attachment / detachment position P1 on the upper side of both side frames 10a, support shafts 10b that extend in the substantially horizontal direction and can be moved back and forth at both ends in the axial direction of the plate cylinder 2 are arranged to face each other. The plate cylinder 2 is engaged by supporting both ends of the plate cylinder 2 in the advanced state to support the plate cylinder 2, while being separated from both ends of the plate cylinder 2 in the retracted state, the plate cylinder 2 is removed from both side frames 10a.

  Above the plate cylinder 2, a pressure drum 3 that presses the web W 1 onto the plate cylinder 2 from above is disposed. The web cylinder W 1 is sandwiched between the plate cylinder 2 and the pressure cylinder 3, and the plate cylinder 2 and the pressure cylinder 3 Ink adhering to the outer peripheral surface of the plate cylinder 2 is transferred to the web W1 while the web W1 is moved so as to be substantially V-shaped when viewed from the front by a rotating operation.

  A pair of roll support arms 41 (first support members) are arranged on one side of the plate cylinder 2 so as to face each other in the TD direction (the width direction of the web W1). It is inclined so as to gradually be positioned downward as it approaches.

  The upper portions of both roll support arms 41 are connected by a swing shaft 42 extending in the TD direction, and both roll support arms 41 can swing about the swing shaft 42.

  The lower part of each roll support arm 41 is thick in the TD direction, and a fitting recess 41a that opens downward is formed.

  On the opposite side of the plate cylinder 2 in each roll support arm 41, an air cylinder 43 having a cylinder rod 43a extending and contracting obliquely downward on the plate cylinder 2 side is disposed.

  The upper end portion of each air cylinder 43 is supported on the upper part of each roll support arm 41 so as to be swingable around a swing axis extending in the TD direction.

  Below each air cylinder 43, a support frame 44 (second support member) having a substantially S-shape in front view having a support portion 44a on one end side is disposed, and the roll support arm 41 and the support frame 44 are arranged. And constitutes the support means 11 of the present invention.

  The other end portion of each support frame 44 is pivotally supported by the tip end portion of the cylinder rod 43a so as to be rotatable around a rotation axis extending in the TD direction.

  Each support frame 44 is supported by a rotation shaft 44b extending in the TD direction at a position near the other end of the middle part at a position far from the plate cylinder 2 below each roll support arm 41. When the cylinder rod 43a of the air cylinder 43 is extended, the support portion 44a is rotated to one side around the rotation shaft 44b, and the support portion 44a is switched to the first state S1 that closes the opening portion of the fitting recess 41a. When 43a contracts, it turns to the other side around the rotation shaft 44b, and the support portion 44a switches to the second state S2 in which the opening of the fitting recess 41a is opened (see FIG. 7).

  A finisher roll 4 having a smaller diameter than the plate cylinder 2 is disposed between the lower ends of the roll support arms 41.

  The finisher roll 4 includes a roll body 4a that extends in the TD direction and whose outer peripheral surface is in contact with the outer peripheral surface of the plate cylinder 2, and a pair of rotating shafts 4b provided at both end portions of the roll main body 4a. A ball bearing 4c is attached to each rotating shaft 4b.

  Each support means 11 fits the ball bearing 4c of each rotary shaft 4b in the fitting recess 41a in a direction perpendicular to the rotary shaft 4b, and switches each support frame 44 to the first state S1. The rotary shafts 4b are rotatably supported.

  On the other hand, the finisher roll 4 can be removed from each support means 11 by switching each support frame 44 to the second state S2.

  As shown in FIG. 3, the second attachment / detachment position P2 for attaching / detaching the finisher roll 4 to / from the support means 11 is a position obliquely below the first attachment / detachment position P1, and the first attachment / detachment position P1 and the first attachment / detachment position P1. The 2 attachment / detachment position P2 constitutes the roll attachment / detachment position P of the present invention.

  In the first region R1 below the roll attachment / detachment position P, an ink pan 5 is disposed as shown in FIGS.

  The ink pan 5 has a substantially plate shape extending in the TD direction, and a pair of plate-like leg portions 5a extending in the horizontal direction orthogonal to the TD direction are provided on the lower surface thereof at a predetermined interval in the TD direction. .

  Further, below the roll attaching / detaching position P, a slide mechanism 6 (sliding means) is provided that is slidable in a horizontal direction orthogonal to the TD direction.

  The slide mechanism 6 includes a slide table 6a capable of supporting the ink pan 5. As shown in FIG. 2, when the ink pan 5 is supported, the leg portions 5a are inserted into the slide table 6a from above. One opening 6b is formed.

  As shown in FIG. 1, the slide table 6a is slidable between a first region R1 below the roll attaching / detaching position P and a second region R2 on one side of the first region R1.

  A roll lifting mechanism 7 (lifting means) is disposed below the first region R1.

  As shown in FIG. 2, the roll lifting mechanism 7 includes an elongate drive shaft 71 extending in the TD direction, and a drive unit 72 that rotates the drive shaft 71 is provided on one end side of the drive shaft 71. Yes.

  A pair of pinion gears 73 are attached to the other end and the middle part of the drive shaft 71 in a rotationally integrated manner, and a pair of rack gears 74 extending vertically are engaged with each pinion gear 73.

  A first support plate 75 having a rectangular shape in a plan view extending in the TD direction is attached to the upper end of each rack gear 74, and the first support plate 75 is located immediately below the first attachment / detachment position P1. .

  Four plate cylinder support rollers 75a whose rotational axis centers in the TD direction are provided at substantially four corners of the upper surface of the first support plate 75, and the plate cylinder 2 can be supported by the four plate cylinder support rollers 75a. It has become.

  Further, a second support plate 76 having a rectangular shape in a plan view extending in the TD direction is provided on one side of the first support plate 75, and the second support plate 76 is directly below the second attachment / detachment position P2. It has become the position.

  The second support plate 76 is suspended from the first support plate 75 by a pair of suspension members 76a provided at a predetermined interval in the TD direction. The first support plate 75 and the second support plate 76 are , Are arranged in steps in front view.

  On the upper surface of the second support plate 76, as shown in FIG. 2, a pair of roll support bases 76b having a gate shape in a side view are provided at a predetermined interval in the TD direction. The nischer roll 4 can be supported.

  The first support plate 75 and the second support plate 76 constitute the mounting frame 12 of the present invention. When the driving shaft 71 is rotationally driven by the driving unit 72, the mounting frame 12 is driven by both pinion gears. The two rack gears 74 are moved up and down via 73 and moved up and down.

  The gravure printing apparatus 1 enters the carriage carrying position D1 below the printing unit 10 and carries the plate cylinder 2 and the finisher roll 4, while retreating from the carriage carrying position D1 to move the plate cylinder 2 and the finisher roll 4. A cart 8 for carrying out is provided.

  The carriage 8 includes a carriage body 8a assembled with a plurality of iron frames. The carriage body 8a has a rectangular frame shape in a side view extending in the carriage advancing / retreating direction, and a pair of opposite faces in the carriage width direction. Side frame portions 81 are provided.

  A pair of front casters 81 a is fixed to the front side of the carriage advance / retreat direction at the lower part of each side frame portion 81.

  A slide rail 84 extending in the cart advance / retreat direction is attached to the upper portion of each side frame portion 81, and a pair of sliders 85 are fitted to each slide rail 84 so as to be slidable in the cart advance / retreat direction.

  The middle part of the carriage advancing / retreating direction at the lower part of both side frame parts 81 is connected by a connecting frame part 86 extending in the carriage width direction, and the upper surface of the connecting frame part 86 is for determining the position of the carriage 8 relative to the printing unit 10. A striker 86a is attached.

  Further, a rear frame portion 82 having a U-shape in a plan view is provided at the lower end of each side frame portion 81 at the lower end of the carriage advance / retreat direction so as to protrude rearward in the carriage advance / retreat direction. Is attached with a gripping member 83 having a substantially gate shape when viewed from the front.

  In addition, a pair of rear casters 82a is provided on the lower surface of the rear frame portion 82 at a predetermined interval in the carriage width direction, and the rear casters 82a can rotate around an axis extending in the vertical direction. ing.

  Each rear caster 82a includes a first drive motor 82c that rotationally drives the wheels 82b of each rear caster 82a, and a second drive motor 82d that rotationally drives each rear caster 82a around an axis extending in the vertical direction. And a control unit 80 is connected to the first drive motor 82c and the second drive motor 82d.

  The controller 80 controls the rotational operation of the first drive motor 82c and the second drive motor 82d to cause the carriage 8 to self-run.

  A slide frame 87 on which the plate cylinder 2 and the finisher roll 4 can be placed is provided above the carriage body 8a.

  The slide frame 87 is fixed to the upper surfaces of both sliders 85, and is slidable in the cart advancing and retracting direction with respect to the cart body 8a.

  In the middle of the slide frame 87, when the carriage 8 is moved into the printing unit 10 and the slide frame 87 is slid forward in the carriage advance / retreat direction, the placement frame 12 is moved up and down. A second opening 87a through which 12 can pass is provided.

  In addition, a pair of first support blocks 88a capable of supporting the plate cylinder 2 so that the center line thereof is directed in the forward / backward direction of the carriage is provided on one side of the slide frame 87 in the carriage width direction with a predetermined interval in the carriage width direction. It has been.

  On the other hand, on the other side in the carriage width direction of the slide frame 87, a second support block 88b capable of supporting the finisher roll 4 so that the center line thereof faces in the carriage advance / retreat direction is provided.

  When the plate cylinder 2 is supported by the first support blocks 88 a and the finisher roll 4 is supported by the second support block 88 b, the center line of the plate cylinder 2 extends in the same direction as the center line of the finisher roll 4. In addition, the plate cylinder 2 is arranged with the finisher roll 4 in a horizontal direction perpendicular to the center line of the finisher roll 4.

  As shown in FIG. 2, a pair of first positioning members 89a are provided on one side of the slide frame 87 in the cart width direction with a predetermined interval in the cart advance / retreat direction.

  The dimension between the two first positioning members 89a corresponds to the dimension in the longitudinal direction of the plate cylinder 2, and the plate cylinder 2 is supported by the first support blocks 88a between the first positioning members 89a. The position of the plate cylinder 2 with respect to the carriage 8 is determined.

  In addition, a pair of second positioning members 89b are provided on the other side of the slide frame 87 in the cart width direction with a predetermined interval in the cart advance / retreat direction.

  The dimension between the second positioning members 89b corresponds to the dimension in the longitudinal direction of the finisher roll 4, and the finisher roll 4 is supported by the second support block 88b between the second positioning members 89b. Thus, the position of the finisher roll 4 with respect to the carriage 8 is determined.

  An engaging hook 10c that can be engaged with the striker 86a of the carriage 8 is provided at the lower part of the printing unit 10, and when the carriage 8 enters the printing unit 10, the engaging hook 10c engages with the striker 86a for printing. The position of the carriage 8 relative to the unit 10 is determined.

  When the slide frame 87 is slid forward with respect to the carriage advancing / retreating direction with the engagement hook 10c engaged with the striker 86a, the second opening 87a of the slide frame 87 is placed on the roll lifting mechanism 7 as shown in FIG. It corresponds to the frame 12.

  The plate cylinder 2 and the finisher roll 4 are not placed on the placement frame 12, the slide table 6a is positioned in the first region R1, and the second opening 87a of the slide frame 87 is the roll lifting mechanism 7. When the mounting frame 12 is raised in a state corresponding to the mounting frame 12, the mounting frame 12 moves to the second opening 87 a of the slide frame 87 and the second of the slide table 6 a as shown in FIGS. 1 and 2. The ink pan 5 passes through one opening 6b in order, and the first support plate 75 comes into contact with both the leg portions 5a of the ink pan 5 so that the ink pan 5 is supported and moved upward from below. Then, the finisher roll 4 is immersed in the ink accumulated in the ink pan 5 so that the gravure printing apparatus 1 is ready to start printing.

  In addition, when the placement frame 12 is lowered while the placement frame 12 supports the ink pan 5, the placement frame 12 moves to the first opening 6 b of the slide table 6 a and the second opening 87 a of the slide frame 87. The slide table 6a supports the ink pan 5 in a state where both the leg portions 5a enter the first opening 6b.

  Each roll support arm 41 is swung to one side so that the opening portion of each fitting recess 41a faces downward while the support portion 44a of the support frame 44 closes the opening portion of each fitting recess 41a. When the slide table 6a is slid to the second region R2, the mounting frame 12 can be moved up and down between the carriage loading position D1 and the second attachment / detachment position P2, as shown in FIGS. become.

  With the support means 11 supporting the finisher roll 4 and with the mounting frame 12 raised to the second attachment / detachment position P2, the support portion 44a of each support frame 44 opens the opening portion of each fitting recess 41a. When opened, the finisher roll 4 is placed on the placement frame 12 as shown in FIGS.

  On the other hand, when the finisher roll 4 is placed on the placement frame 12 in a state where the carriage 8 is located at the carriage delivery position D1, the finisher roll 4 is placed in each fitting recess 41a of each roll support arm 41 with the opening portion facing downward. When the mounting frame 12 is lifted with the support portions 44a of the support frames 44 opening the opening portions of the fitting recesses 41a, the respective fitting recesses 41a are supported. The rotary shafts 4b of the finisher roll 4 are fitted to each other.

  With the finisher roll 4 placed on the placement frame 12, the placement frame 12 is lowered to the first region R1, and then each roll support arm 41 is moved further to the one side than the second attachment / detachment position P2. When it is swung, as shown in FIGS. 9 and 10, the mounting frame 12 can move up and down between the carriage loading position D1 and the first attachment / detachment position P1.

  When each support shaft 10b supports the plate cylinder 2 and the support shaft 10b is retracted in a state where the mounting frame 12 is raised to the first attachment / detachment position P1, as shown in FIG. 11 and FIG. The cylinder 2 is removed from the printing unit 10 and placed on the placement frame 12.

  On the other hand, when the mounting frame 12 on which the plate cylinder 2 is mounted is raised to the first attachment / detachment position P1 and each support shaft 10b is advanced, each support shaft 10b is engaged with each end of the plate cylinder 2. The plate cylinder 2 is attached to the printing unit 10.

  The plate cylinder 2 and the finisher roll 4 are mounted on the mounting frame 12 in a state where the first support block 88a and the second support block 88b do not support the plate cylinder 2 and the finisher roll 4. When the mounting frame 12 is lowered in the state, the plate cylinder 2 and the finisher roll 4 are moved to the first while the mounting frame 12 passes through the second opening 87a of the slide frame 87 as shown in FIGS. The support block 88a and the second support block 88b are transferred to each other.

  On the other hand, the first support block 88a and the second support block 88b support the plate cylinder 2 and the finisher roll 4, and the plate cylinder 2 and the finisher roll 4 are not mounted on the mounting frame 12. When the mounting frame 12 is raised, the mounting frame 12 passes through the second opening 87a of the slide frame 87, and the plate cylinder 2 and the finisher roll 4 are moved from the first support block 88a and the second support block 88b, respectively. It is supposed to receive.

  Thus, the roll raising / lowering mechanism 7 of the present invention can raise and lower the mounting frame 12 between the carriage 8 that has entered the printing unit 10 and the first and second attachment / detachment positions P1 and P2. . That is, the roll lifting mechanism 7 can move the plate cylinder 2 and the finisher roll 4 up and down between the carriage loading position D1 and the roll attachment / detachment position P.

  Next, the operation of removing the plate cylinder 2 and the finisher roll 4 from the printing unit 10 will be described in detail.

  3 and 4, after the printing operation is finished, the roll elevating mechanism 7 is activated to slightly lower the mounting frame 12 and swing each roll support arm 41 to one side (Z1 direction in FIG. 3). Then, after setting the fitting recesses 41a to the downward direction, the finisher roll 4 is washed.

  Next, the roll lifting mechanism 7 is activated to further lower the mounting frame 12. Then, the placement frame 12 passes through the first opening 6b of the slide table 6a, so that each leg 5a of the ink pan 5 enters the first opening 6b and the slide table 6a supports the ink pan 5.

  Next, after the slide table 6a is slid from the first region R1 to the second region R2 (arrow X2 in FIG. 5), the mounting frame 12 is raised to the second attachment / detachment position P2 (arrow X3 in FIG. 5).

  Thereafter, as shown in FIGS. 7 and 8, the cylinder rod 43a of each air cylinder 43 is contracted. Then, the support portion 44a of each support frame 44 opens the opening portion of each fitting recess 41a to enter the second state S2, and both roll support bases 76b of the mounting frame 12 support the used finisher roll 4. To do.

  Thereafter, as shown in FIGS. 9 and 10, the mounting frame 12 is lowered and each roll support arm 41 is further swung to one side (Z1 direction in FIG. 9), and then shown in FIGS. Thus, the mounting frame 12 is raised to the first attachment / detachment position P1 (arrow X4 in FIG. 11).

  Then, each support shaft 10b is retracted. Then, each support shaft 10b is detached from each end portion of the used plate cylinder 2, and each plate cylinder support roller 75a of the mounting frame 12 supports the used plate cylinder 2.

  Thereafter, as shown in FIGS. 13 and 14, the mounting frame 12 is lowered (arrow X5 in FIG. 13). Then, the used printing cylinder 2 and the finisher roll 4 are transferred to the first support block 88a and the second support block 88b while the mounting frame 12 passes through the second opening 87a of the slide frame 87 in the carriage 8. .

  Thereafter, the slide frame 87 is slid to the rear side in the cart advancing / retreating direction.

  The control unit 80 is configured such that the used plate cylinder 2 and the finisher roll 4 are placed on the first support block 88a and the second support block 88b of the carriage 8, and the slide frame 87 slides rearward in the carriage advance / retreat direction. When the state is confirmed, an operation signal is output to the first drive motor 82c and the second drive motor 82d. Then, the engaging hook 10c is detached from the striker 86a and the carriage 8 is retracted from the printing unit 10 and the used plate cylinder 2 and the finisher roll 4 are carried out of the printing unit 10.

  Next, the operation of attaching the plate cylinder 2 and the finisher roll 4 to the printing unit 10 will be described in detail.

  First, the new plate cylinder 2 and the finisher roll 4 are supported by the first support block 88 a and the second support block 88 b of the carriage 8. At this time, by placing the new plate cylinder 2 and the finisher roll 4 between the pair of first positioning members 89a and between the pair of second positioning members 89b, respectively, the plate cylinder 2 and the finisher roll 4 with respect to the carriage 8 are placed. Determine the position.

  When the control unit 80 confirms that the new plate cylinder 2 and the finisher roll 4 are placed on the first support block 88a and the second support block 88b of the carriage 8, the first drive motor 82c and the second drive are performed. An operation signal is output to the motor 82d. Then, the carriage 8 enters the printing unit 10 and the new plate cylinder 2 and the finisher roll 4 are carried into the printing unit 10, and the engagement hook 10 c engages with the striker 86 a and the carriage 8 with respect to the printing unit 10. The position of is determined.

  Next, as shown in FIGS. 13 and 14, the slide frame 87 is slid forward in the carriage advancing / retreating direction so that the second opening 87 a of the slide frame 87 corresponds to the mounting frame 12.

  Next, the roll lifting mechanism 7 is activated to raise the placement frame 12. Then, as shown in FIGS. 11 and 12, the mounting frame 12 passes the second opening 87a of the slide frame 87 in the carriage 8 and moves the new plate cylinder 2 and the finisher roll 4 to the first support block 88a. And it receives from the 2nd support block 88b, and it raises to the 1st attachment / detachment position P1 (arrow X4 of FIG. 11).

  And each support shaft 10b is advanced. Then, each support shaft 10 b engages with each end of the new plate cylinder 2, and the new plate cylinder 2 is attached to the printing unit 10.

  Thereafter, as shown in FIGS. 9 and 10, the mounting frame 12 is lowered to the first region R1 (arrow X6 in FIG. 9).

  Thereafter, as shown in FIGS. 7 and 8, each roll support arm 41 is swung to the other side (Z2 direction in FIG. 7) so that each fitting recess 41a faces downward, and then the mounting frame 12 is placed. Is raised to the second attaching / detaching position P2 (arrow X7 in FIG. 7). Then, each rotating shaft 4b of the new finisher roll 4 is fitted into each fitting recess 41a.

  Thereafter, as shown in FIGS. 5 and 6, the cylinder rod 43a of each air cylinder 43 is extended. Then, the support portion 44a of each support frame 44 is in the first state S1 in which the opening portion of each fitting recess 41a is closed, and each support means 11 rotatably supports each rotation shaft 4b of the new finisher roll 4. To do.

  Next, the slide table 6a is slid from the second region R2 to the first region R1 (arrow X8 in FIG. 5). Then, the slide table 6 a comes to be interposed between each roll support arm 41 and the mounting frame 12, and the first opening 6 b of the slide table 6 a corresponds to the mounting frame 12.

  Thereafter, as shown in FIGS. 3 and 4, the mounting frame 12 is raised (arrow X9 in FIG. 3). Then, the placement frame 12 passes through the first opening 6b of the slide table 6a and the first support plate 75 comes into contact with both legs 5a of the ink pan 5, thereby supporting the ink pan 5 from below and moving it up. Also, as shown in FIGS. 1 and 2, each roll support arm 41 is swung to the other side (Z2 direction in FIG. 1), so that the outer peripheral surface of the roll body 4a in the new finisher roll 4 becomes a new plate cylinder. 2 is brought into contact with the outer peripheral surface. Then, the mounting frame 12 is further moved upward until the lower part of the new finisher roll 4 attached to the printing unit 10 enters the ink pan 5 to attach the plate cylinder 2 and the finisher roll 4 to the printing unit 10. Exit.

  As described above, according to the embodiment of the present invention, when the used finisher roll 4 is removed from the printing unit 10, each support means 11 is moved so that the opening portion of each fitting recess 41 a faces downward. At the same time, when each support frame 44 is switched to the second state with the mounting frame 12 of the roll lifting mechanism 7 raised, the opening portions of the respective fitting recesses 41a are opened, so that the used finisher roll 4 is moved downward. It becomes movable. Therefore, when the used finisher roll 4 is supported by the placement frame 12 and the placement frame 12 is lowered, the used finisher roll 4 comes off the roll support arm 41 and moves down to the carriage 8. The used finisher roll 4 can be efficiently removed from the printing unit 10 by using the carry-out operation of the used finisher roll 4.

  Further, when the new finisher roll 4 is attached to the printing unit 10, each support means 11 is moved so that the opening portion of each fitting recess 41a faces downward, and each support frame 44 is moved to the second state. In addition, the carriage 8 is moved into the printing unit 10 to bring the new finisher roll 4 into the printing unit 10 and further raise the mounting frame 12 of the roll lifting mechanism 7. Move the new finisher roll 4 up. Then, since each rotating shaft 4b of the new finisher roll 4 enters each fitting recess 41a, each supporting means 11 supports each rotating shaft 4b by switching each supporting frame 44 to the first state. As described above, the new finisher roll 4 can be efficiently attached to the printing unit 10 by using the carry-in operation of the new finisher roll 4.

  Further, since each support frame 44 is supported by each roll support arm 41 by a rotating shaft 44b extending in the TD direction, each support frame 44 is switched at the time of switching between the first and second states in each support frame 44. The posture does not jump out in the TD direction. Therefore, the attachment portion of the finisher roll 4 in the printing unit 10 can be reduced in the TD direction, and the gravure printing apparatus 1 can be prevented from being enlarged.

  Further, when the loading frame 12 of the roll lifting mechanism 7 is moved up and down to the first attachment / detachment position P1 with the carriage 8 entering the printing unit 10, the plate cylinder 2 can be attached to and detached from the printing unit 10, while When the mounting frame 12 of the roll lifting mechanism 7 is raised and lowered to the second attachment / detachment position P <b> 2, the finisher roll 4 can be attached to and detached from the printing unit 10. In this way, both the plate cylinder 2 and the finisher roll 4 can be carried in and out with respect to the printing unit 10 by one carriage 8 and one roll lifting mechanism 7.

  Further, when the mounting frame 12 of the roll lifting mechanism 7 moves up the ink pan 5 located in the first region R1, the finisher roll 4 is immersed in the ink accumulated in the ink pan 5 and the gravure printing apparatus 1 can start printing. It becomes a state. Thus, the ink pan 5 can be moved to a fixed position when printing is performed using the roll lifting mechanism 7 that lifts and lowers the plate cylinder 2 and the finisher roll 4, and the ink pan 5 is moved to the fixed position. Therefore, it is not necessary to provide a dedicated mechanism for this, and the gravure printing apparatus 1 can be made at a low cost. On the other hand, when the plate cylinder 2 and the finisher roll 4 are attached to and detached from the printing unit 10, the ink pan 5 can be moved to the second region R <b> 2 that does not interfere with the lifting and lowering operation of the mounting frame 12. In addition, it is possible to perform a work such as laying a curing film on the ink pan 5 while carrying out the attaching / detaching work of the finisher roll 4, and the time required for the setup change in the gravure printing apparatus 1 can be shortened.

  In the embodiment of the present invention, the slide table 6a can be slid to the second region R2 which is a region on one side of the first region R1, but the other side of the first region R1. The structure which can be slid to the area | region may be sufficient. The slide table 6a may be configured to be able to move between the first region R1 and other regions in the horizontal direction.

  The present invention is suitable for a gravure printing apparatus that transfers ink to a continuously conveyed web.

DESCRIPTION OF SYMBOLS 1 Gravure printing apparatus 2 Plate cylinder 4 Finisher roll 4b Rotating shaft 5 Ink pan 6 Slide mechanism (sliding means)
7 Roll elevating mechanism (roll elevating means)
8 cart 10 printing unit 11 support means 12 mounting frame 41 roll support arm (first support member)
41a Fitting recess 44 Support frame (second support member)
44b Rotating shaft P Roll attaching / detaching position P1 First attaching / detaching position P2 Second attaching / detaching position R1 First region R2 Second region S1 First state S2 Second state

Claims (4)

A printing unit in which a plate cylinder and a finisher roll in contact with the outer peripheral surface of the plate cylinder are detachably attached at a roll attachment / detachment position;
A carriage that is configured to be capable of placing the finisher roll, and moves the furniture roll into and out of the printing unit by moving forward and backward to a position below the roll attaching / detaching position in the printing unit;
A mounting frame on which the finisher roll can be placed is provided, and the finisher roll can be moved up and down between the carriage that has entered the printing unit and the roll attaching / detaching position by the raising and lowering operation of the placement frame. And lifting means,
The printing unit includes a pair of support means for rotatably supporting a pair of rotating shafts provided at both end portions of the finisher roll,
The support means includes a first support member having a fitting recess in which the rotation shaft can be fitted in a direction orthogonal to the rotation shaft, a first state in which the opening portion of the fitting recess is closed, and a second state in which the opening is opened. A second support member that can be switched to a state, and the opening portion of the fitting recess is directed downward at an upper position corresponding to each rotation shaft of the finisher roll that moves up and down by the elevating means. A gravure printing apparatus configured to be movable. The gravure printing apparatus according to claim 1,
The second support member is supported by the first support member so as to be rotatable about a rotation axis extending in the TD direction, and is rotated to one side to be in the first state, while the other side is The gravure printing apparatus is configured so as to be in the second state by rotating to the right. In the gravure printing apparatus according to claim 1 or 2,
The cart is configured so that a centerline of the plate cylinder extends in the same direction as a centerline of the finisher roll, and the finisher roll extends in a horizontal direction perpendicular to the centerline of the finisher roll. It is configured so that it can be placed side by side,
In the roll attachment / detachment position, a first attachment / detachment position for attaching / detaching the plate cylinder and a second attachment / detachment position for attaching / detaching the furnisher roll are set, respectively.
The gravure printing apparatus, wherein the elevating means can elevate and lower the mounting frame to the first attaching / detaching position and the second attaching / detaching position, respectively. In the gravure printing apparatus according to claim 3,
The printing unit includes a sliding means that can support an ink pan and can move in a horizontal direction between a first region below the roll attachment / detachment position and a second region other than the first region. Arranged,
The gravure printing apparatus, wherein the elevating means is configured to be able to move up and down while supporting the ink pan located in the first region from below by the slide means.

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