JP6309618B2 - Intaglio printing machine - Google Patents

Description

  The present invention relates to an intaglio printing press.

  In conventional intaglio printing presses, a sheet-like substrate is placed on a table and printed, and the ink is supplied by bringing a doctor blade into contact with the surface of the planographic intaglio plate on which wiring pattern grooves are formed. While sliding the doctor blade from one edge side to the other edge side of the planographic plate, the groove of the planographic plate is filled with ink, and then the blanket cylinder on which the silicone blanket is wound is rolled on the planographic plate. The ink filled in the grooves of the planographic intaglio plate is transferred onto the silicone blanket of the blanket cylinder, and then the blanket cylinder is rolled on the substrate of the flat bed, and the ink on the silicone blanket of the blanket cylinder is transferred to the substrate. What is printed by transferring it onto is known (for example, Patent Document 1 below) Reference).

JP 2012-209465 A

  Here, when ink is supplied to the planographic intaglio with a doctor blade, the attached ink remains at the tip of the doctor blade after the supply. If this residual ink is left as it is, it will be difficult to adjust the viscosity of the ink at the next and subsequent ink supply, or it may dry out and become a foreign substance, so it is desirable to remove it periodically.

  However, conventionally, when the doctor blade is separated from the planographic intaglio, the operator wipes off the residual ink as appropriate, which not only burdens the operator but also requires that the printing machine be stopped during the wiping operation. The work efficiency was poor.

  For this reason, the present invention provides an intaglio printing press that can reduce the burden on the operator and improve the operating efficiency of the printing press by automatically cleaning the doctor blade that supplies ink to the planographic intaglio. The purpose is to do.

The intaglio printing press according to the first invention for solving the above-mentioned problems is
Plano-intaglio,
A substrate table for holding the substrate;
A plate blade of the planographic intaglio plate, and a doctor blade that is held so as to be able to contact and separate from each other and is movable in a direction connecting one end edge to the other end edge of the planographic intaglio plate, and a doctor blade that supplies ink to the plate surface of the planographic intaglio plate. In an intaglio printing press that forms a functional pattern on a substrate,
A cleaning device for cleaning the doctor blade is provided outside one end edge of the planographic intaglio plate or outside the other end edge.

The intaglio printing press according to the second invention is the intaglio printing press according to the first invention,
The cleaning device includes:
A cleaning member capable of contacting and leaving the tip of the doctor blade;
Cleaning member contact driving means for moving at least one of the cleaning member and the doctor blade to bring the cleaning member into contact with the tip of the doctor blade is provided.

The intaglio printing press according to the third invention is the intaglio printing press according to the second invention,
The cleaning member is a belt-shaped cleaning sheet,
The cleaning device includes sheet running means for running the cleaning sheet in a state where the cleaning sheet is in contact with a tip of the doctor blade.

The intaglio printing press according to the fourth invention is the intaglio printing press according to any one of the first to third inventions,
The base table is provided on one end edge side of the plano-concave plate,
A rubber cylinder for transferring the ink on the plano-concave plate to the substrate on the base table, which is held by a rubber cylinder holding means so as to be movable and rotatable on the plano-concave plate and the base table;
The doctor blade is held by the rubber cylinder holding means on the upstream side in the moving direction of the rubber cylinder when the rubber cylinder is moving from the plano-concave plate to the base table,
The cleaning device is provided between the plano-intaglio and the substrate table.

An intaglio printing press according to a fifth invention is the intaglio printing press according to the fourth invention,
The doctor blade has a first doctor blade configured to be slidable from one end edge side to the other end edge side of the plano-concave plate in a state where the tip is in contact with the plano-concave plate, and the tip is in contact with the plano-concave plate or A second doctor blade configured to be slidable from the other end edge side of the planographic intaglio plate toward the one end edge side,
Cleaning the first doctor blade on the substrate table side of the cleaning device;
The second doctor blade is cleaned on the plano-intaglio side of the cleaning device.

The intaglio printing press according to the sixth invention is the intaglio printing press according to any one of the first to third inventions,
The doctor blade is configured to be slidable from one end edge side to the other end edge side of the plano-concave plate in a state where the tip is in contact with the plano-concave plate, and the tip is in contact with or close to the plano-concave plate. The second doctor blade is configured to be slidable from the other end edge side to the one end edge side of the planographic intaglio plate.

  According to the intaglio printing press according to the present invention described above, the doctor blade that supplies ink to the plate can be automatically cleaned, the burden on the operator can be reduced, and the operating efficiency of the printing press can be improved. .

It is a schematic block diagram of the intaglio printing press which concerns on Example 1 of this invention. FIG. 2 is a top view of FIG. 1. It is operation | movement explanatory drawing of the intaglio printing machine shown in FIG. It is explanatory drawing which shows the example of washing | cleaning of a doctor blade by the intaglio printing machine shown in FIG. It is explanatory drawing which shows the example of washing | cleaning of the doctor blade by the intaglio printing press which concerns on Example 2 of this invention.

  Hereinafter, the details of the intaglio printing press according to the present invention will be described with reference to the drawings, but the present invention is not limited only to the following examples.

An intaglio printing machine according to Embodiment 1 of the present invention will be described with reference to FIGS.
As shown in FIGS. 1 and 2, in the intaglio printing press 100 according to the present embodiment, on one end edge side (the right side in FIGS. 1 and 2) on the bed 111, a base material such as a sheet-like resin film or flexible glass. 1 is provided. Further, on the other end edge side (left side in FIGS. 1 and 2) on the bed 111, a plate table 113 for holding a flat plano-concave plate 101 in which a groove (width: about 1 to 100 μm) of a wiring pattern is formed is arranged. It is installed.

  Further, on the bed 111, a guide rail 114 having a longitudinal direction from the one end edge side toward the other end edge side is laid in a pair so as to sandwich the substrate table 112 and the plate table 113 therebetween. Slide members 115 are engaged with the guide rails 114, respectively. The slide member 115 can be slid in a synchronized state along the longitudinal direction of the guide rail 114 by a slide member driving means (for example, a linear motor) (not shown). Subframes 116 are erected.

  Both ends in the axial direction of a blanket cylinder (rubber cylinder) 117 in which a silicone blanket is wound around the outer periphery are rotatably supported by opposed subframes 116 via eccentric bearings 118, respectively. The eccentric bearing 118 is rotatably supported by the sub-frame 116 and can be rotated by an eccentric bearing driving means (not shown) (for example, an actuator such as an air cylinder). Then, by operating the eccentric bearing driving means and rotating the eccentric bearing 118, the blanket cylinder 117 has the lower end edge of the blanket cylinder 117 as shown by the solid line in FIG. 1 and the height at which the lower end edge of the blanket cylinder 117 is in contact with the upper surface of the substrate 1 or the plate surface of the plano-concave plate 101 as shown by the one-dot chain line in FIG. Position).

  Further, on the other end edge side of the blanket cylinder 117 of the opposing subframe 116 (on the upstream side in the moving direction of the blanket cylinder 117 when the blanket cylinder 117 is moving from the plano-concave plate 101 to the substrate table 112). The both ends of a doctor blade (first doctor blade) 119 whose longitudinal direction is directed along the axial direction of the blanket cylinder 117 are supported so as to be swingable via a doctor blade holding member 127. The doctor blade 119 is swung by a doctor blade driving means (not shown) (for example, an actuator such as an air cylinder) so that the tip of the doctor blade 119 is the plate surface of the plano-concave plate 101 or the upper surface of the substrate 1 as shown by the solid line in FIG. 1 and the height at which the tip is located above the upper surface of the plano-concave plate 101 and the upper surface of the substrate 1 (separation position) as shown by the one-dot chain line in FIG. It can be moved between. The distal end of the doctor blade 119 is located on the one end edge side with respect to the doctor blade holding member 127.

Further, both ends of a scraper (second doctor blade) 133 oriented in the longitudinal direction along the axial direction of the blanket cylinder 117 are located on the other end edge side of the doctor blade 119 of the opposing subframe 116 as in the case of the doctor blade 119. Each is supported in a swingable manner via a scraper holding member 134. The scraper 133 is swung by a scraper driving means (for example, an actuator such as an air cylinder) (not shown), so that the tip of the scraper 133 is more than the upper surface of the plano-concave plate 101 and the upper surface of the substrate 1 as shown by the solid line in FIG. The height positioned above (separated position) and the height at which the front end has a slight gap with respect to the upper surface of the plano-concave plate 101 or the upper surface of the substrate 1 as shown by the alternate long and short dash line in FIG. It can be moved between. The tip of the scraper 133 is located on the other end edge side with respect to the scraper holding member 134.
Note that reference numeral 126 in FIG. 2 denotes a drive motor that rotates the blanket cylinder 117.

A cleaning device 135 is disposed between the substrate table 112 and the plate table 113. That is, the bed 111 holds the cleaning device holding member 136 that is oriented in the longitudinal direction along the axial direction of the blanket cylinder 117 via other holding members (not shown), and both sides of the cleaning device holding member 136 in the longitudinal direction. The sub-frame 138 is fixed to be movable in the vertical direction via the air cylinder 137. The opposite subframes 138 are rotatably supported at both ends in the axial direction of the cleaning roller 139, the unwinding roller 140, and the take-up roller 141 with their axial directions directed in the axial direction of the blanket cylinder 117. Yes. The cleaning roller 139 is disposed so that the upper portion protrudes from the subframe 138. The unwinding roller 140 is disposed below the cleaning roller 139, and the winding roller 141 is disposed below the unwinding roller 140 and on the one end edge side.
A belt-shaped cleaning cloth 142 is wound around the cleaning roller 139, and one end side of the cleaning cloth 142 in the circumferential direction of the cleaning roller 139 is wound around the winding roller 140, and the other end side is wound around the winding roller 141. Has been taken.

  The unwinding roller 140 and the winding roller 141 are connected to an unwinding drive motor 143 and a winding drive motor 144, respectively. When the unwinding drive motor 143 is operated, the unwinding roller 140 rotates so as to wind the cleaning cloth 142 (counterclockwise in FIG. 1), and the cleaning cloth 142 moves from the winding roller 141 side to the unwinding roller 140 side. Drive towards. On the other hand, when the winding drive motor 144 is operated, the winding roller 141 rotates so as to wind the cleaning cloth 142 (clockwise in FIG. 1), and the cleaning cloth 142 is rotated from the unwinding roller 140 side to the winding roller 141 side. Drive towards. When the unwinding drive motor 143 and the unwinding drive motor 144 are operated, the clutches built in the unwinding drive motor 144 and the unwinding drive motor 143 are disengaged and run idle.

  Here, in this embodiment, a cleaning member (cleaning sheet) is configured by the cleaning cloth 142, and a cleaning member contact driving unit is configured by the air cylinder 137, and the cleaning roller 139, the unwinding roller 140, the winding roller 141, The unwinding drive motor 143 and the take-up drive motor 144 constitute a sheet traveling means, and the sub-frame 116 constitutes a rubber cylinder holding means.

  Hereinafter, the operation of the intaglio printing press 100 according to the present embodiment will be briefly described with reference to FIG. In the intaglio printing press 100 according to the present embodiment, the planographic intaglio plate 101 is placed on the plate table 113 and the substrate 1 is placed on the substrate table 112, as shown in FIG. The slide member driving means is operated so that the tip of the doctor blade 119 is positioned on one end edge side (right side in FIG. 3) of the doctor table 113 in a state where the eccentric bearing driving means is operated and the blanket cylinder 117 is positioned at the separation position. Then, the sub-frame 116 is slid along the guide rail 114 via the slide member 115 and the doctor blade driving means is operated to position the tip of the doctor blade 119 at the contact position.

  Subsequently, as shown in FIG. 3B, the slide member driving means is operated to move the subframe 116 along the guide rail 114 via the slide member 115 from the one end edge side to the other end edge side (FIG. 3). In the left side), ink 2 is supplied (filled) into the groove of the wiring pattern of the plano-concave plate 101 by the tip of the doctor blade 119 and the ink 2 is scraped off from the portion other than the groove of the plano-concave plate 101. .

  Subsequently, the doctor blade driving means is operated to position the tip of the doctor blade 119 at the separation position, while the eccentric bearing driving means is operated to position the blanket cylinder 117 at the contact position and the scraper driving means is operated to operate the scraper 133. As shown in FIG. 3C, the drive motor 126 is operated to rotate the blanket cylinder 117 and the blanket cylinder 117 is moved from the other end edge side of the plano-concave plate 101 to the one end edge side. The slide member driving means is actuated to move the subframe 116 along the guide rail 114 via the slide member 115. As a result, the ink 2 filled in the groove of the wiring pattern of the plano-concave plate 101 is transferred (accepted) onto the silicone blanket of the blanket cylinder 117, and between the plano-concave plate 101 and the scraper 133 on the plate surface of the plano-concave plate 101. Ink 2 having a thickness corresponding to the gap is supplied, and a film of ink 2 is formed.

  Subsequently, the blanket cylinder 117, the doctor blade 119, and the scraper 133 are in a state of being separated from the planographic intaglio plate 101 and the substrate 1, and after waiting as necessary for viscosity adjustment, the distal ends of the doctor blade 119 and the scraper 133 As shown in FIG. 3 (d), the drive motor 126 is operated to rotate the blanket cylinder 117 while the blanket cylinder 117 is positioned at the separation position and the blanket cylinder 117 is positioned at the contact position. The slide member driving means is operated to move the blanket cylinder 117 from the other end edge side (left side in FIG. 3) of the base material 1 to one end edge side (right side in FIG. 3), and the subframe 116 is guided via the slide member 115. Slide along 114. As a result, the blanket cylinder 117 moves while rotating from the other end edge side of the base material 1 toward the one end edge side, rolls on the base material 1, and the ink 2 on the silicone blanket of the blanket cylinder 117 is transferred. The wiring pattern is printed on the substrate 1 in a state corresponding to the wiring pattern.

  During such a printing operation, for example, in a standby time for viscosity adjustment or the like between the step shown in FIG. 3C and the step shown in FIG. 135 removes the ink 2 adhering to the tips of the doctor blade 119 and the scraper 133.

  Specifically, when cleaning the tip of the doctor blade 119, as shown in FIG. 4A, the slide member driving means is operated to slide the subframe 116 along the guide rail 114 via the slide member 115. At the same time, the air cylinder 137 is operated to move the sub-frame 138 upward, the tip of the doctor blade 119 is brought into contact with the cleaning cloth 142 on the upper side of the cleaning roller 139 and on the substrate 1 side, and then the winding roller 141 By operating the cleaning cloth 142, the ink 2 adhering to the tip of the doctor blade 119 is scraped off and removed by the cleaning cloth 142.

  On the other hand, when cleaning the tip of the scraper 133, as shown in FIG. 4B, the slide member driving means is operated to slide the subframe 116 along the guide rail 114 via the slide member 115, and the air The cylinder 137 is operated to move the sub-frame 138 upward, the tip of the scraper 133 is brought into contact with the cleaning cloth 142 at the top of the cleaning roller 139 and on the plano-concave plate 101 side, and then the unwinding roller 140 is operated to perform cleaning. By running the cloth 142, the ink 2 attached to the tip of the scraper 133 is scraped off by the cleaning cloth 142 and removed.

  As described above, according to the intaglio printing press 100 according to the present embodiment, the doctor blade 119 and the scraper 133 can be automatically cleaned by the single cleaning device 135 during the printing operation. This eliminates the need for the operator to remove the ink adhered to the tip of the doctor blade 119, thereby improving the operating efficiency of the printing press and reducing the burden on the operator.

  In this embodiment, an example in which the cleaning device 135 is disposed between the base table 112 and the plate table 113 is shown. However, the cleaning device 135 is opposite to the base table 112 with the plate table 113 interposed therebetween. You may arrange in the side. In the present embodiment, an example in which the sub-frame 138 is configured to be movable up and down by the air cylinder 137 has been shown. However, for example, the upper end of the cleaning roller 139 is substantially flush with the upper surfaces of the base material 1 and the planographic intaglio 101 The position of the subframe 138 is fixed so that the doctor blade 119 and the scraper 133 are moved in the vertical direction, so that the tips of the doctor blade 119 and the scraper 133 can be brought into contact with the cleaning cloth 142. It is good also as a structure which moves and wash | cleans.

  An intaglio printing machine according to Embodiment 2 of the present invention will be described with reference to FIG. The intaglio printing press according to the present embodiment is an example in which the unwinding drive motor 143 and the take-up drive motor 144 are eliminated from the cleaning device 135 of the intaglio printing press according to the first embodiment. Other configurations are substantially the same as those of the intaglio printing press according to the first embodiment described above, and detailed description thereof is omitted.

  In the intaglio printing press according to the present embodiment, for example, when cleaning the tip of the doctor blade 119, as shown in FIG. 5A, the slide member driving means is operated and the subframe 116 is moved via the slide member 115. While sliding along the guide rail 114, the air cylinder 137 is operated to move the subframe 138 upward, and the tip of the doctor blade 119 is brought into contact with the cleaning cloth 142 above the cleaning roller 139 and on the substrate 1 side. Thereafter, when the slide member driving means is operated to move the doctor blade 119 to the plano-intaglio plate 101 side, the ink 2 attached to the tip of the doctor blade 119 is scraped off by the cleaning cloth 142 and removed.

  When cleaning the tip of the scraper 133, as shown in FIG. 5B, the slide member driving means is operated to slide the subframe 116 along the guide rail 114 via the slide member 115, and the air The cylinder 137 is operated to move the subframe 138 upward, the tip of the scraper 133 is brought into contact with the cleaning cloth 142 above the cleaning roller 139 and on the other end edge side, and then the slide member driving means is operated to operate the scraper. When 133 is moved to the one end edge side, the ink 2 adhering to the tip of the scraper 133 is scraped off and removed by the cleaning cloth 142.

  As described above, according to the intaglio printing press 100 according to the present embodiment, the doctor blade 119 and the scraper 133 can be automatically cleaned by the single cleaning device 135 during the printing operation. In addition, it is not necessary to remove the ink attached to the tip of the doctor blade 119 by the operator by stopping the printing press, and the burden on the operator can be reduced.

  The present invention is suitable for application to an intaglio printing machine that forms a functional film (conductive film) with a high-definition pattern on a substrate by a printing method.

DESCRIPTION OF SYMBOLS 1 Substrate 2 Ink 100 Intaglio printing machine 101 Plane intaglio 111 Bed 112 Substrate table 113 Plate table 114 Slide rail 115 Slide member 116 Subframe 117 Blanket cylinder 117
118 Eccentric bearing 119 Doctor blade (first doctor blade)
126 Drive motor 127 Doctor blade holding member 128 Drive motor 133 Scraper (second doctor blade)
134 Scraper Holding Member 135 Cleaning Device 136 Cleaning Device Holding Member 137 Air Cylinder 138 Subframe 139 Cleaning Roller 140 Unwinding Roller 141 Winding Roller 142 Cleaning Cloth 143 Unwinding Drive Motor 144 Winding Drive Motor

Claims (4)

Plano-intaglio,
A substrate table for holding the substrate;
A plate blade of the planographic intaglio plate, and a doctor blade that is held so as to be able to contact and separate from each other and is movable in a direction connecting one end edge to the other end edge of the planographic intaglio plate, and a doctor blade that supplies ink to the plate surface of the planographic intaglio plate. In an intaglio printing press that forms a functional pattern on a substrate,
A cleaning device for cleaning the doctor blade is provided outside the one end edge of the planographic intaglio,
The base table is provided on one end edge side of the plano-concave plate,
A rubber cylinder for transferring the ink on the plano-concave plate to the substrate on the base table, which is held by a rubber cylinder holding means so as to be movable and rotatable on the plano-concave plate and the base table;
The doctor blade is held by the rubber cylinder holding means on the upstream side in the moving direction of the rubber cylinder when the rubber cylinder is moving from the plano-concave plate to the base table,
The intaglio printing machine, wherein the cleaning device is provided between the planographic intaglio and the substrate table. The cleaning device includes:
A cleaning member capable of contacting and leaving the tip of the doctor blade;
The intaglio printing press according to claim 1, further comprising cleaning member contact driving means for moving at least one of the cleaning member and the doctor blade to bring the cleaning member into contact with a tip of the doctor blade. The cleaning member is a belt-shaped cleaning sheet,
3. The intaglio printing press according to claim 2, wherein the cleaning device includes sheet running means for running the cleaning sheet in a state where the cleaning sheet is in contact with a tip of the doctor blade. The doctor blade is configured to be slidable from one end edge side to the other end edge side of the plano-concave plate in a state where the tip is in contact with the plano-concave plate, and the tip is in contact with or close to the plano-concave plate. A second doctor blade configured to be slidable from the other end edge side of the plano-concave plate to the one end edge side in a state where
Cleaning the first doctor blade on the substrate table side of the cleaning device;
The intaglio printing press according to any one of claims 1 to 3, wherein the second doctor blade is washed on the plano-intaglio side of the washing device.

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