JP2013035261A - Intaglio printing machine - Google Patents

Abstract

An intaglio printing machine capable of facilitating maintenance and inspection work by reducing the frequency of replacement of wiping rollers of a wiping device.
A wiping apparatus having an impression cylinder, a plate cylinder, ink supply means for supplying ink to an intaglio plate of the plate cylinder, and a wiping roller for removing excess ink from the intaglio plate of the plate cylinder. 110 is provided with an air pipe 128 that blows air toward the outer peripheral surface of the wiping roller 111 of the wiping device 110.
[Selection] Figure 5

Description

  The present invention relates to an intaglio printing press.

  The intaglio printing machine supplies ink onto the intaglio plate of the intaglio cylinder having an intaglio plate attached to its peripheral surface, and removes excess ink from the intaglio plate with a wiping roller of a wiping device, thereby holding the paper held on the impression cylinder In contrast, the ink in the groove of the intaglio is printed (for example, see Patent Document 1 below).

JP-A-10-329299

  By the way, in the conventional intaglio printing press as described above, when excess ink is removed from the intaglio plate of the intaglio cylinder by the wiping roller of the wiping device, the wiping roller is gradually heated by the frictional heat and expanded in diameter. As a result, the resin layer covering the surface of the wiping roller was quickly worn out and deteriorated. For this reason, it has become necessary to frequently replace the wiping roller of the wiping device, and the maintenance and inspection work has been troublesome.

  In view of the above, an object of the present invention is to provide an intaglio printing machine capable of facilitating maintenance and inspection work by reducing the replacement frequency of the wiping roller of the wiping device.

  In order to solve the above-described problems, an intaglio printing press according to the present invention includes an impression cylinder holding a sheet, a plate cylinder holding an intaglio on a peripheral surface and in contact with the impression cylinder, and the intaglio of the plate cylinder. An intaglio printing press comprising: an ink supply means for supplying ink to the intaglio plate; and a wiping device having a wiping roller that contacts the intaglio plate of the plate cylinder and removes excess ink from the intaglio plate. An air spraying means for spraying air toward the outer peripheral surface of the wiping roller is provided.

  The intaglio printing press according to the present invention is the intaglio printing press described above, wherein the air spraying means is disposed so as to be oriented in the longitudinal direction along the axial direction of the wiping roller, and the outer peripheral surface side of the wiping roller. And an air pipe having an injection port formed on the outer peripheral surface thereof, and an air supply means for supplying air to one end of the air pipe.

  In the intaglio printing press according to the present invention, in the above-described intaglio printing press, the air spraying unit is further fitted to the tip side so that one end side of the air pipe is detachably attached to support the one end side of the air pipe. And a cylindrical first support member connected to the base end side to which the air supply means is connected, and a base end side attached to the other end side of the air pipe and leading toward the axially outer side of the air pipe And an insertion member having a convex portion having an arcuate curved surface on the distal end side, and the convex portion of the insertion member are detachably inserted to swing the insertion member. And a second support member having a concave portion having an arcuate curved surface corresponding to the convex portion so as to be movably supported.

  According to the intaglio printing press according to the present invention, the air blowing means blows air toward the outer peripheral surface of the wiping roller of the wiping device, so that the wiping roller can be cooled. By suppressing the diameter, it is possible to suppress the wiping roller from strongly hitting the intaglio of the plate cylinder, and it is possible to suppress the wear deterioration rate of the resin layer covering the surface of the wiping roller. As a result, the replacement frequency of the wiping roller of the wiping device can be reduced, and maintenance and inspection work can be facilitated.

1 is an overall schematic configuration diagram of a main embodiment of an intaglio printing press according to the present invention. It is an extraction enlarged view of the principal part of FIG. It is the III-III sectional view taken on the line of FIG. FIG. 4 is a sectional view taken along line IV-IV in FIG. 2. It is the figure seen from the arrow line V direction of FIG. It is an extraction expansion top view of the arrow line VI part of FIG. It is an extraction enlarged view of the arrow VII part of FIG. It is an extraction enlarged view of the arrow VIII part of FIG. It is a block diagram of the control system of the principal part of the intaglio printing machine of FIG.

  Embodiments of an intaglio printing press according to the present invention will be described with reference to the drawings. However, the present invention is not limited to the following embodiments described with reference to the drawings.

[Main embodiments]
A main embodiment of an intaglio printing press according to the present invention will be described with reference to FIGS.

  As shown in FIG. 1, a feeder board 11 on which a sheet 1 that is a sheet is stacked receives and conveys the sheets 1 fed one by one from the upper layer by a sucker mechanism of the sheet feeder 10. Have contacted. A swing device 12 that swings in addition to the paper 1 on the feeder board 11 is disposed at the downstream end of the feeder board 11 in the transport direction of the paper 1.

  The swing device 12 is provided with a so-called triple cylinder impression cylinder 14 via a transfer cylinder 13 in which three gripping claws are arranged at equal intervals along the circumferential direction and three rubber blankets can be attached. I'm in touch. The transfer cylinder 13 is provided with a gripping claw similar to the gripping claw of the impression cylinder 14 so that the paper 1 that has been replaced from the swing device 12 can be replaced with the gripping claw of the impression cylinder 14. It has become.

  A so-called triple cylinder 15 that can be attached with three intaglios along the circumferential direction is in contact with the impression cylinder 14. The intaglio of the plate cylinder 15 is in contact with a so-called quadruple cylinder ink collecting cylinder 16 to which four rubber blankets can be attached along the circumferential direction. The ink collecting cylinder 16 and the impression cylinder 14 are in contact with each other. Is supported so as to be movable with respect to the plate cylinder 15 so that it can be brought into contact (cylinder insertion) and separated (cylinder removal).

  The ink collecting cylinder 16 has five so-called single cylinder chablon cylinders 17 in contact with each other in the circumferential direction, each having a circumferential surface length corresponding to the length of the blanket of the impression cylinder 14 and the intaglio of the plate cylinder 15. Each of these chabron cylinders 17 is in contact with an inking device 18 for supplying ink. The ink devices 18 are filled with inks of different colors.

  A discharge cylinder 21 is in contact with the impression cylinder 14. A sprocket (not shown) of the paper discharge device 22 is coaxially provided on the paper discharge cylinder 21. A pair of paper discharge chains 22b is stretched between the sprocket and sprocket 22a of the paper discharge device 22. The paper discharge chain 22b is provided with a paper discharge claw (not shown). A plurality of paper discharge trays 22c are provided on the downstream side in the traveling direction of the paper discharge chain 22b.

  In this embodiment, the ink supply cylinder 16, the chablon cylinder 17, the ink device 18, and the like constitute ink supply means.

  As shown in FIGS. 1 and 2, below the plate cylinder 15, a wiping roller 111 that is in contact with the intaglio on the outer peripheral surface of the plate cylinder 15, and the wiping roller 111 is supported on the upper part so as to be driven to rotate. A wiping device 110 including a wiping tank 112 that stores wiping liquid therein and a squeegee 113 that is supported on an upper portion of the wiping tank 112 and scrapes off the wiping liquid remaining on the outer peripheral surface of the wiping roller 111 is disposed. Has been.

  As shown in FIGS. 2 to 4, the wiping device 110 passes through the operation side frame 100 </ b> A of the printing press main body and the prime mover side frame 100 </ b> B that rotatably supports the plate cylinder 15. A notch 100Aa is formed to enable this.

  On the bed 101 below the wiping device 110, a pair of guide rails 121 laid in the longitudinal direction along the axial direction of the plate cylinder 15 are laid, and the guide rails 121 are arranged on the operation side frame. In addition to the cover 100A, the cover 102 is disposed so as to cover the outside of the frame 100A. The guide rail 121 is supported on the floor surface 109 via pillars 122 having a lower portion extending outward from the cover 102 and the shutter 103 at predetermined intervals along the longitudinal direction. Has been.

  A plurality of sliders 123 slidably movable along the longitudinal direction of the guide rail 121 are engaged with the guide rail 121. These sliders 123 are connected to the lower portion of the wiping tank 112 via a connecting member 124, and the wiping tank 112 can slide along the guide rail 121 via the connecting member 124 and the slider 123. It is like that.

  On the bed 101 below the wiping tank 112, a hydraulic cylinder 125 oriented in the longitudinal direction along the axial direction of the guide rail 121 is disposed so as to be positioned between the pair of guide rails 121. The hydraulic cylinder 125 is connected to a hydraulic device (not shown in FIGS. 1 to 4) disposed on the outer side of the prime mover-side frame 100 </ b> B, and the distal end side is connected to the bracket 126. It is being fixed to the bed 101 via. A rod 125 a on the distal end side of the hydraulic cylinder 125 is connected and fixed to the bottom surface of the wiping tank 112 via a bracket 127.

  That is, when the rod 125a of the hydraulic cylinder 125 is extended, the wiping device 110 is removed from the wiping space at a predetermined wiping position (solid line position in FIG. 3) inside the frames 100A and 100B. The rod 125a of the hydraulic cylinder 125 can be moved along the guide rail 121 to an exposed position (a two-dot chain line position in FIG. 3) outside the cover 102 and the shutter 103 via the notch 100Aa. In other words, the wiping device 110 can be moved along the guide rail 121 so as to be positioned in the wiping space at the wiping position inside the frames 100A and 100B.

  As shown in FIGS. 2 and 5, an air pipe 128 having a plurality of injection ports 128 a formed on the outer peripheral surface at predetermined intervals along the axial direction is disposed above the wiping roller 111 in the axial direction of the wiping roller 111. The jet port 128a is disposed between the frames 100A and 100B so that the jet port 128a faces the outer peripheral surface side of the wiping roller 111 while facing the longitudinal direction.

  As shown in FIG. 5, one end side (left side in FIG. 5) of the air pipe 128 has a cylindrical shape with the base end side (left side in FIG. 5) attached to the mounting hole 100Ab of the frame 100A. The support sleeve 161 is a support member 161 that is detachably fitted to and supported by the distal end side (right side in FIG. 5). The other end side (right side in FIG. 5) of the air pipe 128 has a cylindrical support cylinder in which one end side (left side in FIG. 5) is closed and the other end side (right side in FIG. 5) is opened. One end side of 162 is fitted and fixed. The other end side of the support cylinder 162 is inserted so that the base end side (the left side in FIG. 5) of the rod 163 can slide along the axial direction.

  A long hole 163 a penetrating in the radial direction of the rod 163 is formed on the outer peripheral surface on the proximal end side of the rod 163 so that the longitudinal direction is directed along the axial direction of the rod 163. The long hole 163a of the rod 163 is inserted with a retaining pin 164 that is fixedly supported at both ends on the inner peripheral surface of the support cylinder 162, and the retaining pin 164 supports the rod 163. The sliding movement is made within the range of the length of the long hole 163 without dropping from the cylinder 162.

  A compression coil spring 165 is interposed between the other end side inside the support cylinder 162 and the base end side of the rod 163, and the compression coil spring 165 is located at the distal end side of the rod 163 (FIG. 5). The middle and right side are biased so as to protrude toward the outside in the axial direction of the air pipe 128 (right side in FIG. 5).

  On the tip side of the rod 163, a convex portion 163b having an arcuate curved surface is provided via a flange portion 163c. The convex portion 163b of the rod 163 is attached to the frame 100B on the base end side (right side in FIG. 5) to form an arcuate curved surface corresponding to the arcuate curved surface of the convex portion 163b of the rod 163. The recessed portion 166a is detachably inserted into the recessed portion 166a of the receiving member 166 which is the second supporting member having the recessed portion 166a on the distal end side (left side in FIG. 5). The convex portion 163b of the rod 163 can be supported so as to be swingable along an arcuate curved surface.

  That is, when the air pipe 128 is moved toward the frame 100B against the urging force of the compression coil spring 165 so that the base end side of the rod 163 is positioned to the base end side of the support cylinder 162. The one end side of the air pipe 128 is released from the support sleeve 161 and released, and the air pipe 128 is swung along the curved surface of the convex portion 163b of the rod 163 in this state, thereby the convex portion of the rod 163. The air pipe 128 can be easily removed from between the frames 100A and 100B by removing the 163b from the recess 166a of the receiving member 166, and the air pipe 128 can be removed from the frame 100A by performing the reverse procedure. It can be easily installed between 100A and 100B And is're.

  The mounting hole 100Ab of the frame 100A is connected to an air compressor (not shown) that is an air supply means. By operating the air compressor, the injection port of the air pipe 128 is interposed via the support sleeve 161. Air can be blown from 128a toward the outer peripheral surface of the wiping roller 111 so that the wiping roller 111 can be dried and cooled.

  In addition, a safety cover 104 is provided in the vicinity of the air pipe 128 between the frames 100A and 100B. The safety cover 104 is rotatably supported at the upper end side. By opening the safety cover 104, the operator can The plate cylinder 15 can be operated by attaching / detaching the air pipe 128.

  As shown in FIGS. 2 and 4, a step 105 is laid between the wiping device 110 on the bed 101 and the paper feeding device 10 between the frames 100 </ b> A and 100 </ b> B. At the end of the step 105 on the wiping device 110 side, a base end side of the auxiliary step 106 which is a step member is pin-coupled so that it can rotate around the axis of the plate cylinder 15. On the tip side of the auxiliary step 106, a gripping hand 106a is provided. In the vicinity of the hydraulic cylinder 125 on the bed 101, a support member 107 is provided to support the tip end side of the lying auxiliary step 106.

  A flange 106 b that protrudes toward the surface side of the auxiliary step 106 is provided near the tip of the end of the auxiliary step 106 on the prime mover side frame 100 </ b> B side. On the flange 106b of the auxiliary step 106, an engagement pin 131 having a longitudinal direction directed in the axial direction of the plate cylinder 15 is supported so as to be slidable along the axial direction of the plate cylinder 15. Yes. Between the engagement pin 131 and the flange 106b of the auxiliary step 106, a compression coil spring (not shown) that biases the engagement pin 131 toward the frame 100B on the prime mover side with respect to the flange 106b. Is intervening.

  In addition, when the auxiliary step 106 stands up, a hole 132a that is detachably engaged with the engagement pin 131 is provided in the driving-side frame 100B portion of the auxiliary step 106 that faces the flange 106b. An engaging plate 132 is attached. The step 105 side is formed on a tapered surface 132b so that the thickness of the engagement plate 132 closer to the wiping device 110 becomes thinner toward the wiping device 110 side.

  That is, the auxiliary step 106 inserts the engagement pin 131 into the hole 132a of the engagement plate 132 when standing up, that is, at the retracted position retracted from the wiping space. As a result, it is held against the frame 100B on the prime mover side so as to maintain the standing state (see FIG. 6), and the engagement pin 131 is engaged so as to be pulled against the urging force of the compression coil spring. By pulling out from the hole 132a of the plate 132, it is released from the holding to the frame 100B on the prime mover side, and when the wiping device 110 is not located at the wiping position, it is flush with the step 105. By turning the end side, the tip side is laid down so that it is supported by the support member 107, that is, The distal end of the engaging pin 131 is moved to the operating position located in the wiping space (see FIG. 4), and the proximal end is rotated so that the distal end is raised by gripping the grip 106a. By contacting the taper surface 132b of the engagement plate 132 and further rotating, the engagement pin 131 is pushed back so as to resist the biasing force of the compression coil spring following the shape of the taper surface 132b. When the tip of the engagement pin 131 is positioned on the hole 132a of the engagement plate 132, the tip of the engagement pin 131 is automatically moved into the hole 132a by the urging force of the compression coil spring. Is inserted (see FIG. 6), and is thereby held again with respect to the frame 100B on the prime mover side so as to maintain the standing state. Than is.

  As shown in FIGS. 2 and 7, on the side of the wiping tank 112 on the side of the plate cylinder 15 near the prime mover frame 100B, there is a dog that can contact a limit switch 141 attached to the prime mover side frame 100B. 140 is attached, and the dog 140 is configured so that the limit switch 141 is set to “ON” when the wiping device 100 is located at the wiping position for wiping the plate cylinder 15. 141 is in contact with 141 and is separated from the limit switch 141 so that the limit switch 141 is turned off when it is located at a position other than the wiping position.

  As shown in FIG. 4, the notch 100 </ b> Aa on the inner surface of the operation-side frame 100 </ b> Aa is arranged on the paper feeder 10 side (lower side in FIG. 4) so as to extend along the longitudinal direction of the guide rail 121. A light projecting portion 142a of an optical sensor that emits a plurality of light beams in the horizontal direction at predetermined intervals in the vertical direction toward the frame 100B on the prime mover side (right direction in FIG. 4), and the plate cylinder 15 side (in FIG. 4, Light projection of an optical sensor that emits a plurality of light beams in the horizontal direction at a predetermined interval in the vertical direction toward the end of the frame 100B on the prime mover side of the guide rail 121 on the upper side (upper right direction in FIG. 4). The part 143a is attached via brackets 142aa and 143aa, respectively.

  Further, on the plate cylinder 15 side (the upper side in FIG. 4) of the notch 100Aa on the inner surface of the operation side frame 100A, the frame 100B side on the prime mover side of the guide rail 121 on the paper feeder 10 side is provided. A light projecting portion 144a of an optical sensor that emits a plurality of light beams in the horizontal direction at a predetermined interval in the vertical direction is attached via a bracket 144aa.

  On the other hand, on the inner surface of the prime mover-side frame 100B, a light receiving portion 142b of the photosensor that receives each light beam from the light projecting portion 142a and a light receiving portion of the photosensor that receives each light beam from the light projecting portion 143a. 143b and a light receiving portion 144b of the optical sensor that receives each light beam from the light projecting portion 144a are attached via brackets 142ba, 143ba, and 144ba, respectively.

  As shown in FIG. 5, an air pipe sensor 145, which is an air pipe detecting means for detecting whether or not the air pipe 128 is mounted, is provided near the air pipe 128 of the frame 100B via a bracket 145a. As shown in FIG. 2, a safety cover sensor 146, which is a safety cover detection means for detecting whether or not the safety cover 104 is closed, is disposed on the rotating shaft portion of the safety cover 104. As shown in FIG. 4, the hydraulic cylinder 125 includes a hydraulic rod sensor 147 that detects that the tip of the rod 125a is extended to a predetermined position, that is, the wiping device 110 is positioned at the exposed position. Is provided.

  As shown in FIGS. 2, 4, and 8, a pin linking portion between the step 105 and the auxiliary step 106 is provided with a cam 148 having a cam surface formed with an arc portion 148 aa and a flat portion 148 ab, When the auxiliary step 106 stands up, that is, when the auxiliary step 106 is positioned at the retracted position, the cam 148 has the flat portion 148aa positioned at the lower side (solid line portion in FIG. 8), and the auxiliary step 106 When step 106 is lying down, that is, when it is in the operating position, the flat portion 148ab is positioned on the sheet feeding device 10 side (the two-dot chain line portion in FIG. 8). The auxiliary step 106 can rotate integrally with the rotation.

  A limit switch 149 having a tip end in contact with the cam surface of the cam 148 is attached to the lower surface of the step 105, and the limit switch 149 is provided when the auxiliary step 106 stands up, that is, When the arc portion 148aa of the cam surface of the cam 148 is in contact with the cam 148 when the cam 148 is in the retracted position, the tip portion is pushed into an “on” state (solid line portion in FIG. 8). When the auxiliary step 106 is lying down, that is, when it is in the operating position, the flat portion 148ab of the cam surface of the cam 148 comes into contact with it, and the tip portion protrudes to “cut”. It is set so as to be in a state (the two-dot chain line portion in FIG. 8).

  As shown in FIG. 9, the limit switches 141 and 149, the light receiving portions 142b to 144b of the optical sensor, and the sensors 145 to 147 are electrically connected to an input portion of a control device 150 which is a control means. ing. The output unit of the control device 150 includes a drive motor 151 that drives the main body of the printing press including the impression cylinder 14 and the plate cylinder 15, and a hydraulic source 129 of the hydraulic device that extends and contracts the hydraulic cylinder 125. Each is electrically connected.

  Furthermore, the input unit of the control device 150 includes a print start switch 152 which is a printing operation operation instruction unit which is installed on the operation panel and outputs a printing operation operation signal, and a paper feed which is installed on the operation panel and the like. A preparatory operation (idle operation) switch 153 that is a preparatory operation (idle operation) instruction means for outputting a preparatory operation operation (idle operation) signal, and the frame on the operation panel and in the vicinity of the wiping position of the wiping device 110 A maintenance / inspection operation signal is installed at 100A and 100B to rotate the impression cylinder 14 and the plate cylinder 15 etc. in a positive rotation (inching) at a maintenance inspection speed that is much slower (slow) than the low-speed printing speed. An inching button 154 that outputs only at the time, and the pressure on the operation panel and the frames 100A and 100B near the wiping position of the wiping device 110. 14 and the reverse size button 155 for outputting a maintenance / inspection operation signal for reversely rotating (reverse dimension) the plate cylinder 15 or the like at a maintenance / inspection speed that is much slower (slow) than the low-speed printing speed. The controller 150 is electrically connected to each other, and the control device 150 switches between validity and invalidity of signals from the light receiving portions 142b to 144b of the photosensor based on a signal from the limit switch 141, and Based on the signal from the limit switch 149, the operation of the hydraulic power source 129 is controlled, and the light receiving portions 142 b to 144 b of the light sensor, the air pipe sensor 145, the safety cover sensor 146, and the signal from the limit switch 149. Based on the above, the validity and invalidity of the signals from the buttons 154 and 155 and the switches 152 and 153 are turned off. Instead, it based on a signal from the button 154, 155 and the switch 152, 153, and has (details will be described later) making it possible to control the operation of the driving motor 151 of the printing machine body.

  In the present embodiment, the guide rail 121, the slider 123, the connecting member 124, etc. constitute a wiping device moving means, and the hydraulic cylinder 125, the hydraulic equipment including the hydraulic power source 129, etc. A device moving drive means is constituted, a wiping device position detecting means is constituted by the dog 140, the limit switch 141 and the like, and a tangible object detecting means is constituted by the light projecting portions 142a to 144a and the light receiving portions 142b to 144b of the optical sensor Maintenance check operation instruction means is constituted by the inching button 154, the reverse dimension button 155, etc., and a step member position detecting means is constituted by the cam 148, the limit switch 149, etc., and the support cylinder 162, The rod 163, the retaining pin 164, the compression Configure the male member by yl spring 165 or the like, the air pipe 128, the support sleeve 161, the receiving member 166, the plug member, by the air compressor, etc., constitute an air blowing device.

  Next, the operation of the intaglio printing press according to this embodiment will be described.

  First, when printing is started by setting the print start switch 152 to “ON”, the control device 150 causes the ink collecting cylinder 16 and the impression cylinder 14 to contact (cylinder) the plate cylinder 15. Then, the drive motor 151 is operated so as to print on the paper 1. As a result, the paper 1 is fed one by one from the paper feeder 10 onto the feeder board 11 and conveyed while being held by being replaced by the gripping claw of the impression cylinder 14 from the swing device 12 through the transfer cylinder 13. The ink of each ink device 18 is transferred to the ink collecting cylinder 16 via the chablon cylinder 17 and supplied onto the intaglio surface of the plate cylinder 15, and the excess ink is removed by the wiping roller 111 of the wiping apparatus 110. Then, the ink is washed into the wiping tank 112 and the paper 1 passes between the impression cylinder 14 and the intaglio cylinder 15 so that the ink is transferred to the paper 1 and printed. 21 is transported by a paper discharge chain 22b of a paper discharge device 22 through 21 and discharged onto a paper discharge tray 22c.

  At this time, since air is supplied from the air compressor, air is blown from the injection port 128a of the air pipe 128 toward the outer peripheral surface of the wiping roller 111 via the support sleeve 161. Is cooled and dried. For this reason, since the wiping roller 111 is suppressed from being heated by frictional heat, diameter expansion is prevented, the contact of the plate cylinder 15 against the intaglio is kept constant, and wear deterioration of the resin layer covering the surface is suppressed. In addition, since the wiping liquid is surely dried and removed when contacting the intaglio of the plate cylinder 15, the wiping liquid can be reliably prevented from adhering to the paper 1, and at the same time, it can be dried quickly. The printing operation can be performed at a high speed.

  Here, since the air pipe 128 is attached and supported, and the safety cover 104 is closed and the auxiliary step 106 is erected, the control device 150 includes the air pipe sensor 145, the safety cover sensor 146, and the limit. Based on the signal from the switch 149, the drive motor 151 is enabled by the signal from the print start switch 152, that is, the printing operation is enabled, while the wiping device 110 is in the wiping position. (The solid line position in FIG. 3), that is, the limit switch 141 is in contact with the dog 140 and is in the “ON” state. By invalidating the signals from the light receiving portions 142b to 144b of the sensor That.

  When the printing on the paper 1 is finished and the work such as the maintenance inspection and cleaning of the wiping device 110 and the print preparation such as paper feeding and plate exchange work are performed, the control device 150 is The hydraulic power source 129 is controlled to extend the rod 125a of the hydraulic cylinder 125, whereby the wiping device 110 is moved from the wiping space at the wiping position (solid line position in FIG. 3) to the exposed position (FIG. 3, it is moved along the guide rail 121 so as to be positioned at the position of the two-dot chain line.

  As a result, the dog 140 is separated from the limit switch 141 and the limit switch 141 is in the “off” state, and therefore the control device 150 is configured to receive the light received by the optical sensor based on a signal from the limit switch 141. The signals from the units 142b to 144b are validated.

  The maintenance and inspection of the wiping device 110 and the work such as cleaning are performed because the wiping device 110 is pulled out to the outside of the frame 100A, 100B of the printing press main body and positioned in an environment free from obstacles. Can be done easily.

  At this time, since the light beams from the light projecting units 142a to 144a of the optical sensor are received by the light receiving units 142b to 144b without being blocked in the wiping space, the control device 150 is connected to the optical sensor. Based on the signals from the light receiving units 142b to 144b, the signal from the printing start switch 152 is invalidated, that is, the printing operation is disabled, and the preparation operation switch 153 and the buttons 154 and 155 are used. That is, the preparatory operation and the maintenance inspection operation are enabled.

  When the preparatory operation switch 153 is set to “ON”, the control device 150 causes the pressure cylinder 14 to be separated (cylindered) from the plate cylinder 15 and the ink collecting cylinder 16 to the plate. The drive motor 151 is operated in a state where the cylinder 15 is separated (barreled), that is, in a state where no ink is supplied from the ink collecting cylinder 16 to the plate cylinder 15. As a result, the paper 1 is transferred from the paper feeder 10 to the impression cylinder 14 via the transfer cylinder 13 and discharged from the paper discharge apparatus 22 via the paper discharge cylinder 21 without contacting the plate cylinder 15. Paper can be discharged onto the paper discharge tray 22c by the chain 22b.

  For this reason, even when the wiping device 110 is pulled out of the frames 100A and 100B of the printing press main body to perform maintenance inspections and cleaning, printing preparation work such as paper feeding work of the printing press main body. It can be performed.

  Further, in order to perform plate replacement work, the engaging pin 131 is pulled out from the hole 132a of the engaging plate 132 to cause the auxiliary step 106 to fall down, so that an operator who becomes a tangible object can move the frame 100A from the step 105 side. , 100B, entering the inside of the auxiliary step 106 and in the wiping space, opening the safety cover 104 and removing the air pipe 128 as described above ( 1) The limit switch 149 is in the “off” state, and (2) at least one of the light beams from the light projecting units 142a to 144a of the optical sensor to the light receiving units 142b to 144b is within the wiping space by an operator. (3) the safety cover sensor 146 does not detect closing of the safety cover 104; 4) Since the air pipe sensor 145 corresponds to at least one of the cases where the attachment of the air pipe 128 is not detected (all of the above (1) to (4) in this embodiment), the control device 150 Is based on the signals from the air pipe sensor 145, the safety cover sensor 146 and the limit switch 149 and the signals from the light receiving portions 142b to 144b of the optical sensor, and invalidates the signal from the preparatory operation switch 153, Only the signals from the buttons 154 and 155 are enabled, that is, the preparatory operation is disabled and only the maintenance and inspection operation is enabled.

  Here, as described above, the air pipe 128 resists the urging force of the compression coil spring 165 so that the base end side of the rod 163 is positioned to the base end side of the support cylinder 162. By moving toward the frame 100B side, one end side is released from the support sleeve 161, and in this state, the one end side is swung along the curved surface of the convex portion 163b of the rod 163. Since the convex portion 163b can be extracted from the concave portion 166a of the receiving member 166, it can be easily removed without using a tool or the like between the frames 100A and 100B.

  Subsequently, the control device 150 locks and controls the operation of the hydraulic power source 129 so that the hydraulic cylinder 147 cannot be expanded and contracted based on a signal from the limit switch 149.

  As a result, the control device 150 can control the operation of the drive motor 151 based only on signals from the buttons 154 and 155, and the movement of the wiping device 110 due to a malfunction of the hydraulic cylinder 147. Therefore, it is safe for an operator to operate the buttons 154 and 155 while entering the wiping space between the frames 100A and 100B to perform plate replacement work or the like.

  Then, after the work is completed, the operator attaches the air pipe 128 in the reverse order of the removal procedure described above and closes the safety cover 104, and then comes out of the wiping space to the outside of the frames 100A and 100B. When the hand 106a of the auxiliary step 106 is gripped and the auxiliary step 106 is raised, (1) the air pipe sensor 145 detects the attachment of the air pipe 128, and (2) the safety cover sensor 146 is the safety Detecting that the cover 104 is closed; (3) all of the light beams from the light projecting units 142a to 144a of the optical sensor are received by the light receiving units 142b to 144b; and (4) the limit switch 149 is in the “ON” state. At least one of the above (all of the above (1) to (4) in the present embodiment) Based on the signals from the air pipe sensor 145, the safety cover sensor 146, the limit switch 149, and the signals from the light receiving portions 142b to 144b of the optical sensor, the control device 150 again outputs the signal from the preparatory operation switch 153. Enable, i.e. enable the preparatory operation.

  Here, the air pipe 128 can be easily attached without using a tool or the like between the frames 100A and 100B by performing a procedure reverse to the removal procedure described above.

  In addition, as described above, the auxiliary step 106 is configured so that the tip of the engagement pin 131 contacts the tapered surface 132b of the engagement plate 132 and follows the shape of the tapered surface 132b. When it is pushed back against the biasing force of the spring and is positioned on the hole 132a, it is automatically inserted into the hole 132a by the biasing force of the compression coil spring so that the standing state is maintained. The frame is automatically held on the prime mover side frame 100B.

  Subsequently, the control device 150 controls the release of the operation of the hydraulic source 129 so that the hydraulic cylinder 147 can be expanded and contracted based on a signal from the limit switch 149, and then the rod of the hydraulic cylinder 125 is controlled. When the hydraulic power source 129 is controlled so as to shorten 125a, the wiping device 110 moves from the exposed position (two-dot chain line position in FIG. 3) to the wiping space at the wiping position (solid line position in FIG. 3). It moves along the guide rail 121 so as to be positioned.

  As a result, the dog 140 comes into contact with the limit switch 141 and the limit switch 141 is in the “ON” state, so that the control device 150 can control the optical sensor based on the signal from the limit switch 141. The signal from the light receiving units 142a to 144a is invalidated and the signal from the print start switch 152 is validated, that is, the printing operation is enabled.

  For this reason, in the intaglio printing press according to this embodiment, even when the wiping device 110 is pulled out from the inside to the outside of the frames 100A and 100B, the printing press main body such as paper feeding and plate exchange work is performed. Since it is possible to perform operations such as printing preparation for operating the drive motor 151, the above-described printing preparation of the printing press main body can be performed in parallel with operations such as maintenance and inspection of the wiping device 110 and cleaning. The wiping space of the wiping device 110 can be used to perform operations such as the above-described printing preparation of the printing press main body.

  Therefore, according to the intaglio printing press according to the present embodiment, even when the wiping device 110 is pulled out from the inside to the outside of the frames 100A and 100B, work such as printing preparation for operating the drive motor 151 can be performed safely and easily. The following effects can be obtained.

(1) Since the air pipe 128 blows air toward the outer peripheral surface of the wiping roller 111 of the wiping device 110, the wiping roller 111 can be cooled and dried. The expansion of the diameter can be suppressed, the contact of the wiping roller 111 with the intaglio of the plate cylinder 15 can be kept constant, and the wear deterioration rate of the resin layer covering the surface of the wiping roller 111 can be suppressed. Since the wiping liquid adhering to the wiping roller 111 can be surely dried and removed, the wiping liquid can be reliably prevented from adhering to the paper 1 and at the same time the wiping roller 111 can be dried quickly. Therefore, it is possible to perform a printing operation at a high speed. As a result, the replacement frequency of the wiping roller 111 can be reduced, the maintenance and inspection work can be facilitated, and the occurrence of printing defects can be greatly reduced. At the same time, productivity can be improved by high-speed printing.

(2) The air pipe 128 is moved toward the frame 100B against the urging force of the compression coil spring 165 so that the base end side of the rod 163 is positioned to the base end side of the support cylinder 162. Thus, one end side of the air pipe 128 is released from the support sleeve 161, and the air pipe 128 is swung along the curved surface of the convex portion 163b of the rod 163 in this state, thereby Since the convex portion 163b can be extracted from the concave portion 166a of the receiving member 166, it is possible to easily remove the air pipe 128 from between the frames 100A and 100B without using a tool or the like, and the reverse procedure to the above. By performing the above, the air pipe 12 is interposed between the frames 100A and 100B. It can be easily without using a tool or the like be attached to.

[Other Embodiments]
In the above-described embodiment, when the limit switch 141 is in the “ON” state in contact with the dog 140, the light receiving units 142 b to 142 b of the optical sensor are based on a signal from the limit switch 141. While the signal from 144b is invalidated, when the limit switch 141 is in the “off” state away from the dog 140, the light receiving portions 142b to 142b of the optical sensor are based on the signal from the limit switch 141. Although the case where the control device 150 configured to validate the signal from the 144b is described, as another embodiment, for example, the limit switch 141 comes into contact with the dog 140 to be in the “ON” state. When the light sensor is activated, based on the signal from the limit switch 141, While stopping and stopping the light projection from the light projecting units 142a to 144a, when the limit switch 141 is in the “off” state away from the dog 140, based on the signal from the limit switch 141, It is also possible to apply a control unit that starts the operation of the optical sensor and starts the light projection from the light projecting units 142a to 144a.

  The intaglio printing press according to the present invention can reduce the replacement frequency of the wiping roller of the wiping device and can facilitate the maintenance and inspection work, and thus can be used extremely beneficially in the printing industry and the like. .

DESCRIPTION OF SYMBOLS 1 Paper 10 Paper feeder 11 Feeder board 12 Swing apparatus 13 Transfer cylinder 14 Impression cylinder 15 Plate cylinder 16 Ink collecting cylinder 17 Chablon cylinder 18 Ink apparatus 21 Paper discharge cylinder 22 Paper discharge apparatus 22a Sprocket 22b Paper discharge chain 22c Paper discharge stand 100A , 100B Frame 100Aa Notch 100Ab Mounting hole 101 Bed 102 Cover 103 Shutter 104 Safety cover 105 Step 106 Auxiliary step 106a Grasping hand 106b Flange 107 Bearing member 109 Floor surface 110 Wiping device 111 Wiping roller 112 Wiping tank 113 Squeegee 121 Guide rail 122 Column 123 Slider 124 Connecting member 125 Hydraulic cylinder 125a Rod 126, 127 Bracket 128 Air pipe 128a Injection port 12 9 Hydraulic source 131 Engagement pin 132 Engagement plate 132a Hole 132b Surface 140 Dog 141 Limit switch 142a-144a Light emitting part 142aa-144aa Bracket 142b-144b Light receiving part 142ba-144ba Bracket 145 Air pipe sensor 145a Bracket 146 Safety sensor 146 Safety cover Rod sensor 148 Cam 148aa Arc surface 148ab Flat surface 149 Limit switch 150 Control device 151 Drive motor 152 Print start switch 153 Preparatory operation switch 154 Jog button 155 Reverse size button 161 Support sleeve 162 Support cylinder 163 Rod 163a Long hole 163b Protruding part 163b Flange 164 Retaining pin 165 Compression coil spring 166 Receiving member 166a Recess

Claims (3)

An impression cylinder for holding the sheet;
A plate cylinder holding the intaglio on the peripheral surface and in contact with the impression cylinder;
Ink supply means for supplying ink to the intaglio of the plate cylinder;
A wiping device having a wiping roller that contacts the intaglio of the plate cylinder and removes excess ink from the intaglio,
An intaglio printing press comprising air blowing means for blowing air toward an outer peripheral surface of the wiping roller of the wiping device. In the intaglio printing press according to claim 1,
The air blowing means is
An air pipe which is disposed so as to face the longitudinal direction along the axial direction of the wiping roller and has an injection port formed on the outer peripheral surface thereof toward the outer peripheral surface side of the wiping roller;
An intaglio printing machine comprising: an air feeding means for feeding air to one end of the air pipe. In the intaglio printing press according to claim 2,
The air spraying means further comprises:
A cylindrical first support member that is detachably fitted to one end side of the air pipe on the distal end side, supports the one end side of the air pipe, and connects the air feeding means to the proximal end side;
The difference which comprises the convex part which is attached to the other end side of the air pipe and is urged to project the distal end side toward the outside in the axial direction of the air pipe and has an arcuate curved surface on the distal end side. Insert member,
A second support member comprising a concave portion having an arcuate curved surface corresponding to the convex portion so that the convex portion of the insertion member is detachably inserted and supported so as to be swingable. An intaglio printing press comprising:

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