JP2012061603A - Intaglio printing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an intaglio printing machine, in which workability can be enhanced by facilitating entering the inside of the printer.SOLUTION: A cleaning unit 210, which cleans the peripheral surface of an ink collection cylinder 16, can be moved from a cleaning position inside the printing machine for cleaning the peripheral surface of the ink collection cylinder 16, to the outside of the printing machine through a notch 100Aa formed on a frame 100A of a printing machine body. When the cleaning unit 210 is positioned on the outside of the printing machine, the notch 100Aa can allow the worker to enter the inside of the printing machine.

Description

  The present invention relates to an intaglio printing press.

  The intaglio printing machine supplies a plurality of colors of ink supplied from a plurality of ink supply devices to an ink transfer cylinder having a blanket attached to the peripheral surface, and on the intaglio plate of the intaglio cylinder having the intaglio attached to the peripheral surface. The ink is transferred from the ink transfer cylinder, and the ink in the groove of the intaglio is printed on the paper held on the impression cylinder.

  In such an intaglio printing press, after the printing is completed, a cleaning device disposed near the lower side of the ink transfer cylinder is operated to clean the ink transfer cylinder, and then new printing is started. ing.

Japanese Patent Laid-Open No. 03-038347

  By the way, in the conventional intaglio printing press as described above, it is difficult for an operator to enter the inside of the printing press and perform various operations. For example, when confirming the clearance of the contact area between the ink transfer cylinder and the plate cylinder at the start of new printing, after adjusting the clearance, a test print is performed, and the printed matter obtained by the test print By looking at, it is only possible to indirectly confirm whether the clearance or the like is appropriate, which is very laborious.

  In view of the above, an object of the present invention is to provide an intaglio printing press that can easily enter the inside of the printing press and improve workability.

  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. In an intaglio printing press comprising an ink transfer cylinder for transferring ink to the intaglio and a cleaning device for cleaning the peripheral surface of the ink transfer cylinder, the cleaning device includes a peripheral surface of the ink transfer cylinder. It can be moved from the cleaning position inside the printing press to the outside of the printing press through the notch formed in the frame of the printing press body, and the notch positions the cleaning device to the outside of the printing press. The operator can enter the inside of the printing press.

  Furthermore, in the intaglio printing press according to the present invention, in the intaglio printing press described above, the cleaning device position detecting means for detecting the position of the cleaning device at the cleaning position, and the cleaning device is not positioned at the cleaning position. Sometimes, based on the signal from the cleaning device position detecting means, the printing machine main body is driven so as to disable the printing operation and enable only the operation at a maintenance inspection speed slower than the printing operation speed. And control means for controlling the operation of the motor.

  According to the intaglio printing press according to the present invention, the operator can easily enter the inside of the printing press through the notch formed in the frame of the printing press main body, so that workability can be improved.

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 an operation explanatory diagram of FIG. 3. 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 an ink collecting cylinder 16 that is a so-called quadruple cylinder ink transfer cylinder to which four rubber blankets can be attached along the circumferential direction. 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 wiping roller 19 is in contact with the intaglio plate of the plate cylinder 15. The wiping roller 19 is disposed above a wiping tank 20 that stores a wiping liquid that has cleaned the peripheral surface of the wiping roller 19.

  Further, 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 chablon cylinder 17 and the ink device 18 constitute an ink supply means, and the wiping roller 19 and the wiping tank 20 constitute a wiping device.

  As shown in FIGS. 1 to 3, a cleaning device 210 that cleans and removes ink remaining on the peripheral surface of the ink collecting cylinder 16 is disposed near the plate cylinder 15 below the ink collecting cylinder 16. The cleaning device 210 has the following structure.

  A notch 100 </ b> Aa that allows the cleaning device 210 to pass is formed in the operation side frame 100 </ b> A of the printer main body that rotatably supports the ink collecting cylinder 16 and the frame 100 </ b> A of the prime mover side. Has been.

  On the bed 101 below the cleaning device 210, a pair of rails 231 are arranged in the longitudinal direction along the axial direction of the ink collecting cylinder 16, and the rails 231 correspond to the operation-side frame 100 </ b> A. It extends so that it may be located to the cover 102 arrange | positioned so that the outer side of this may be covered. The rail 231 is supported on the floor surface 109 via a support column 232 at the end side protruding from the bed 101.

  A carriage 234 having wheels 234 a is placed on the rail 231. The carriage 234 has a base end side (right side in FIG. 3) located at a position closest to the prime mover side frame 100B, and a distal end side (left side in FIG. 3) is the operation side frame. The length is between 100A and the cover 102. The front end side of the carriage 234 is supported on the floor surface 109 via wheels 234b. A handle 235 is attached to the distal end side of the carriage 234 so that an operator can move the carriage 234 along the rail 231 by gripping and pushing the handle 235. It has become.

  A stopper block 233 is detachably attached to the inner tip side (left side in FIG. 3) of the pair of rails 231. An engaging member 236 that can be engaged with the stopper block 233 protrudes below the base end side (right side in FIG. 3) of the carriage 234. Further, as shown in FIG. 4, the base wheel side of the carriage 234 has an auxiliary wheel 237 that can be attached and detached, and the auxiliary wheel 237 is attached so as to be movable on the floor surface 109. It has become so.

  That is, the carriage 234 moves along the rail 231 from the base end side of the rail 231 toward the tip end side, and when the base end side is positioned on the tip end side of the rail 231 (see FIG. 4), When the engaging member 236 engages with the stopper block 233, further movement of the rail 231 from the proximal end side toward the distal end side is suppressed, and dropping of the proximal end side onto the floor surface 109 is prevented. At the same time, the auxiliary wheel 237 is mounted on the base end side, and the stopper block 233 is removed from the rail 231, thereby being released from movement on the rail 231 and passing through the auxiliary wheel 237. It is possible to move further on the floor surface 109 while being supported by the surface 109 on the base end side.

  As shown in FIGS. 2 and 3, the base end side (right side in FIG. 3) of the carriage 234 is positioned between the frames 100 </ b> A and 100 </ b> B when it is located closest to the prime mover side frame 100 </ b> B. On the carriage 234, a pair of support frames 211 are arranged so as to face each other in the axial direction of the ink collecting cylinder 16, and the support frame 211 is supported by a support stay 212 between the opposed frames. Has been.

  A support shaft 213 is rotatably supported near the upper portion between the pair of support frames 211. A pair of support brackets 214 are attached to the support shaft 213 so as to be able to rotate integrally with the support shaft 213. Support plates 215 are attached to the support brackets 214, respectively. Between these support plates 215, a feeding reel 216 that feeds the wound belt-like cleaning cloth 219, and the cleaning cloth 219 that is oriented so as to face the ink collecting cylinder 16 and is fed from the feeding reel 216. Are provided on the front side, and a recovery reel 217 for winding the cleaning cloth 219 that has passed on the front side of the pressure pad 218 is provided.

  On the other hand, the base end side of the lever 220 is connected to the end portion of the support shaft 213 on the operation side frame 100 </ b> A side so as to be able to rotate integrally with the support shaft 213. A distal end side of the rod 221 a of the air cylinder 221 is connected to the distal end side of the lever 220 via a pin 222 so as to be rotatable. The base end side of the air cylinder 221 is supported by the support frame 211 via pins 223.

  That is, by extending the rod 221a of the air cylinder 221 and rotating the support shaft 213 via the pin 222 and the lever 220, the cleaning cloth 219 is moved to the ink assembly via the pressing pad 218. The support bracket 214 and the support plate 215 can be swung so as to be pressed against the peripheral surface of the body 16, and the rod 221 a of the air cylinder 221 is contracted, and the pin 222 and the lever 220 are used to By rotating the support shaft 213, the support bracket 214 and the support plate 215 can be swung so that the cleaning cloth 219 is pulled away from the peripheral surface of the ink collecting cylinder 16 via the pressing pad 218. Further, as the support plate 215 swings, the cleaning cloth 219 is caused to travel and the cleaning plate 215 is moved. The reels 216 and 217 can be rotated in only one direction so that a new portion of the cloth 219 is positioned on the front surface of the pressing pad 218 and is opposed to the peripheral surface of the ink collecting cylinder 16. (Known technology).

  In this embodiment, the support frame 211, the support stay 212, the support shaft 213, the support bracket 214, the support plate 215, the feed reel 216, the recovery reel 216, the pressing pad 218, The cleaning cloth 210, the lever 220, the air cylinder 221, the pins 222, 223, and the like constitute the cleaning device 210. The rail 231, the support column 232, the stopper block 233, the carriage 234, the handle 235, the The engaging member 236, the auxiliary wheel 237, and the like constitute cleaning device moving means.

  As shown in FIGS. 3 and 4, a detection unit 248a of the proximity sensor 248 is provided near the lower side of the inner surface of the frame 100A on the prime mover side. A detection target portion 248b of the proximity sensor 248 is provided on the base end side of the carriage 234, and the proximity sensor 248 is located at a position where the base end side of the carriage 234 is closest to the frame 100B on the prime mover side. When it is positioned, that is, when the cleaning device 210 is positioned at the cleaning position (see FIG. 3), the detection unit 248a detects the detected portion 248b.

  As shown in FIG. 5, the detection unit 248a of the proximity sensor 248 is electrically connected to an input unit of a control device 150 that is a control unit. The output unit of the control device 150 is electrically connected to a drive motor 151 that drives a printing press main body including the impression cylinder 14, the plate cylinder 15, the ink collecting cylinder 16, and the like.

  Furthermore, the input unit of the control device 150 includes a print start switch 152 that is a printing operation operation instruction unit that is installed on the operation panel and outputs a printing operation operation signal, and the operation panel and the cleaning device 210. Installed on the frames 100A and 100B in the vicinity of the cleaning position, the pressure cylinder 14, the plate cylinder 15, the ink collecting cylinder 16 and the like are adjusted at a maintenance inspection speed that is extremely slow (slow) than the low-speed printing speed. An inching button 153 for outputting a maintenance / inspection operation signal for rotation (inching) only at the time of operation, and on the operation panel and in the frame 100A, 100B in the vicinity of the cleaning position of the cleaning device 210, the impression cylinder 14 is a maintenance / inspection operation signal that reversely rotates (reverse dimensions) the plate cylinder 15 and the ink collecting cylinder 16 at a maintenance / inspection speed that is much slower (slow) than the low-speed printing speed. A reverse-size button 154 that outputs only at the time of operation is electrically connected to each other, and the control device 150 determines that the buttons 153 and 154 and the switch are based on a signal from the detection unit 248a of the proximity sensor 248. The validity and invalidity of the signal from 152 can be switched, and the operation of the drive motor 151 of the printing press main body can be controlled based on the signals from the buttons 153 and 154 and the switch 152. (Details will be described later).

  In FIG. 3, reference numeral 229 denotes a solenoid valve box for storing solenoid valves used for various operations. In the present embodiment, the proximity sensor 248 and the like constitute cleaning device position detection means, and the inching button 153 and the reverse dimension button 154 constitute maintenance and inspection operation instruction means.

  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 operates the drive motor 151 to perform printing 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 in each ink device 18 is transferred to the ink collecting cylinder 16 via the chablon cylinder 17 and supplied onto the intaglio plate surface of the plate cylinder 15, and the excess ink is removed by the wiping roller 19. When the paper 1 passes between the impression cylinder 14 and the intaglio cylinder 15, the ink is transferred and printed on the paper 1, and the paper 1 passes through the paper discharge cylinder 21. The paper is conveyed by a paper discharge chain 22b of the paper discharge device 22 and discharged onto a paper discharge tray 22c.

  Here, in the control device 150, the cleaning device 210 is located at the cleaning position (FIG. 3), that is, the detection unit 248a of the proximity sensor 248 detects the detected portion 248b. Based on the signal from the detection unit 248a of the proximity sensor 248, the signals from the print start switch 152 and the buttons 153 and 154 are validated, that is, the printing operation operation and the maintenance inspection operation are enabled.

  When the ink collecting cylinder 16 is cleaned when printing on the paper 1 is started and new printing is started, the rod 221a of the air cylinder 221 of the cleaning device 210 is extended. By rotating the support shaft 213 via the pin 222 and the lever 220, the pressing pad 218 and the cleaning cloth 219 are moved to the ink collecting cylinder 16 via the support bracket 214 and the support plate 215. When the ink collecting cylinder 16 is rotated while being pressed against the peripheral surface, the ink remaining on the peripheral surface of the ink collecting cylinder 16 is wiped by the cleaning cloth 219 of the cleaning device 210 and cleaned and removed. The

  At this time, by contracting the rod 221a of the air cylinder 221 of the cleaning device 210 and rotating the support shaft 213 via the pin 222 and the lever 220, the support bracket 214 and the support plate The pressure pad 218 and the cleaning cloth 219 are once separated from the peripheral surface of the ink collecting cylinder 16 via the 215, and the rod 221a of the air cylinder 221 is immediately extended again, so that the pin 222 and the lever 220 are moved. When the support shaft 213 is rotated, the pressing pad 218 and the cleaning cloth 219 are pressed against the peripheral surface of the ink collecting cylinder 16 via the support bracket 214 and the support plate 215. Accordingly, as described above, in the cleaning device 210, the reels 216 and 217 rotate, the cleaning cloth 219 is fed out by a predetermined amount, and a new portion of the cleaning cloth 219 is transferred to the ink collecting cylinder 16. It is pressed on the peripheral surface.

  When the cleaning of the ink collecting cylinder 16 is completed in this way and maintenance work, cleaning, and the like of the cleaning device 210 are performed, the handle 235 is gripped and the carriage is passed through the notch 100a of the frame 100A. 234 is pulled out and moved to the outside of the cover 102 along the rail 231 until the engagement member 236 of the carriage 234 is engaged with the stopper block 233 of the rail 231. The cleaning device 210 is moved from the cleaning position (FIG. 3) between the frames 100A and 100B to the exposed position (FIG. 4) outside the printer main body.

  Thereby, since the said washing | cleaning apparatus 210 is positioned in an environment without an obstruction in the circumference | surroundings, operations, such as a maintenance check and cleaning of the said washing | cleaning apparatus 210, can be performed very easily.

  At this time, the detected portion 248b is separated from the detecting portion 248a of the proximity sensor 248, and the detecting portion 248a does not detect the detected portion 248b. That is, the cleaning device 210 is positioned at the cleaning position. Therefore, the control device 150 invalidates the signal from the print start switch 152 based on the signal from the detection unit 248a of the proximity sensor 248 and validates only the signal from the buttons 153 and 154. In other words, the printing operation operation is disabled and only the maintenance inspection operation is enabled.

  Then, when working on the ink collecting cylinder 16 and the plate cylinder 15, for example, when checking the clearance of the contact point between the ink collecting cylinder 16 and the plate cylinder 15, first, prior to the confirmation. The auxiliary wheel 237 is mounted on the base end side of the carriage 234, the stopper block 232 is removed from the rail 231, and the handle 235 is further pulled to move the carriage 234 on the floor surface 109. Thus, the cleaning device 210 is moved away from the periphery of the notch 100 </ b> Aa of the frame 100 </ b> A and the cover 102 together with the cart 234.

  As a result, there are no bulky obstacles around the notch 100Aa and the cover 102 of the frame 100A, and an operator can move the cleaning device 210 through the notch 100Aa of the cover 102 and the frame 100A to the cleaning position. The space between the frames 100 </ b> A and 100 </ b> B (hereinafter referred to as “working space”) can be entered very easily at a position below the ink collecting cylinder 16 and the plate cylinder 15, including the space when the ink is located in It becomes like this.

  Subsequently, an operator enters the work space through the cover 102 and the cutout 100Aa of the frame 100A, and a clearance or the like at a contact point between the ink collecting cylinder 16 and the plate cylinder 15 is measured with a gauge or the like. By measuring, it is possible to directly confirm whether the clearance or the like is appropriate. The clearance between the ink collecting cylinder 16 and the plate cylinder 15 is adjusted by rotating an eccentric bearing that rotatably supports the ink collecting cylinder 16 with respect to the frame by a hydraulic cylinder or the like.

  At this time, since the control device 150 disables the signal from the print start switch 152, that is, the printing operation is disabled, even if an operator enters the work space, The ink collecting cylinder 16 does not rotate at the printing operation speed.

  Further, since the control device 150 validates the signal from the buttons 153 and 154, that is, enables the maintenance and inspection operation, the ink collecting cylinder is operated by operating the buttons 153 and 154. Since the operation of the drive motor 151 can be controlled to rotate forward and backward at 16 at the maintenance inspection speed, when the operator enters the work space, the ink collecting cylinder 16 etc. Various operations that require rotation can be performed together.

  When such operations such as maintenance and cleaning of the cleaning device 210 and operations in the work space are completed, the cleaning device 210 is placed between the frames 100A and 100B by performing the reverse procedure to the above. Reposition to the cleaning position (Fig. 3).

  Accordingly, the detection unit 248a of the proximity sensor 248 detects the detected portion 248b again, so that the control device 150 performs the printing based on the signal from the detection unit 248a of the proximity sensor 248. The signals from the start switch 152 and the buttons 153 and 154 are made valid, that is, the printing operation and the maintenance inspection operation are enabled.

  That is, in the intaglio printing press according to the present embodiment, the cleaning device 210 can be moved from the cleaning position inside the frames 100A and 100B to the outside of the printing press main body through the notch 100Aa. In other words, the cleaning device 210 is further moved from the periphery of the cover 102 and the frame 100A so that an operator can enter the work space inside the frames 100A and 100B through the notch 100Aa of the frame 100A. They are able to leave.

  Therefore, an operator can easily enter the work space through the cover 102 and the cutout 100Aa of the frame 100A, and work on the ink collecting cylinder 16 and the plate cylinder 15 can be easily performed. it can.

  Therefore, according to the intaglio printing press according to the present embodiment, it is possible to easily enter the inside of the printing press and improve workability.

  Since the intaglio printing press according to the present invention can easily enter the inside of the printing press and improve workability, it 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 19 Wiping roller 20 Wiping tank 21 Paper discharge cylinder 22 Paper discharge apparatus 22a Sprocket 22b Paper discharge Chain 22c Discharge base 100A, 100B Frame 100Aa Notch 101 Bed 102 Cover 109 Floor 150 Control device 151 Drive motor 152 Print start switch 153 Inching button 154 Reverse size button 210 Cleaning device 211 Support frame 212 Support stay 213 Support shaft 214 Support bracket 215 Support plate 216 Feed reel 217 Recovery reel 218 Press pad 219 Cleaning cloth 220 Lever 221 Air cylinder 221a Rod 222, 223 Pin 229 Solenoid valve box 231 rail 232 posts 233 stopper block 234 dolly 234a, 234b wheel 235 handle 236 engagement member 237 auxiliary wheel 248 the proximity sensor 248a detecting unit 248b detected portion

Claims (2)

An impression cylinder for holding the sheet;
A plate cylinder holding the intaglio on the peripheral surface and in contact with the impression cylinder;
An ink transfer cylinder for transferring ink to the intaglio in contact with the intaglio of the plate cylinder;
In an intaglio printing press comprising a cleaning device for cleaning the peripheral surface of the ink transfer cylinder,
The cleaning device is movable from the cleaning position inside the printing press for cleaning the peripheral surface of the ink transfer cylinder to the outside of the printing press through a notch formed in the frame of the printing press main body.
The intaglio printing press, wherein the notch enables an operator to enter the inside of the printing press when the cleaning device is positioned outside the printing press. In the intaglio printing press according to claim 1,
Cleaning device position detecting means for detecting the positioning of the cleaning device at the cleaning position;
When the cleaning device is not positioned at the cleaning position, based on a signal from the cleaning device position detecting means, the printing operation is disabled and the operation is performed at a maintenance inspection speed that is slower than the printing operation speed. And an intaglio printing press comprising: control means for controlling the operation of the drive motor of the printing press main body so as to enable only the printing press.

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