KR100654071B1 - An apparatus for gravure roll prining - Google Patents

Abstract

A gravure roll printing apparatus is provided to prevent safety accidents accompanied by a gravure roll exchanging work by including a gravure roll exchanging unit. A gravure roll printing apparatus includes a gravure roll exchanging section(200), a gravure roll mounting section, and a feeding section(400). The gravure roll exchanging section includes an exchange support unit(220) and an exchange grip unit(230). The exchange support unit includes an exchange support member and an exchange central shaft. The exchange grip unit includes a plurality of grippers and is rotatably mounted to the exchange support unit. The gravure roll mounting section accommodates the grippers to mount a gravure roll and rotates the mounted gravure roll.

Description

Gravure roll printing apparatus {AN APPARATUS FOR GRAVURE ROLL PRINING}

1 is a schematic overall perspective view of a gravure roll printing apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic partially enlarged perspective view of the gravure roll exchanger of FIG. 1. FIG.

Figure 3a is a partially enlarged perspective view of the transfer unit according to the present invention.

Figure 3b is a partially enlarged perspective view of another example of the transfer unit according to the present invention.

4A is a partially enlarged perspective view of an exchange support unit and an exchange grip unit according to an embodiment of the present invention.

4B is a schematic partial enlarged cross-sectional view taken along line I-I of FIG. 4A.

4C is a partially enlarged perspective view of a modification of the exchange support unit of the present invention.

4d is a schematic partial sectional view of a variant of the exchange support unit according to the invention.

5A is a schematic cross-sectional view of an exchange grip unit according to an embodiment of the present invention.

5B is a variation of an exchange grip unit in accordance with one embodiment of the present invention.

Figure 6a is a schematic partial perspective view of the gravure roll mounting portion according to an embodiment of the present invention.

6B is a perspective view showing a state where the grip part according to the present invention is accommodated in the grip receiving part.

FIG. 6C is a schematic partial cross-sectional view showing a modification of the portion taken along the line II-II of FIG. 6B.

FIG. 6D is a partial cross-sectional view taken along line III-III of FIG. 6C.

7 is a schematic perspective view showing a modification to one embodiment of the present invention.

8 is a partial perspective view showing an example of the shield according to the present invention.

9A to 9F are schematic state diagrams showing a gravure roll exchange process of the gravure roll printing apparatus according to the present invention.

* Explanation of symbols for main parts of drawings *

100 ... base 200 ... gravure roll changer

220 ... Replacement Support Unit 221 ... Replacement Support

222 Exchange center axis 225 ...

230 ... Replacement grip unit 231 ... gripper

300 ... gravure roll insert 310 ... gripper receptacle

400 ... transport part 500 ... exchange part case

600 ... shield

The present invention relates to a gravure roll printing apparatus, and more particularly, to a gravure roll printing apparatus for facilitating exchange of gravure rolls.

Traditional gravure printing technology has been adopted for continuous and precise printing process on fabrics such as paper or cloth, but with the development of recent technology, gravure printing technology is applied to the manufacturing process of flat panel display devices such as liquid crystal display devices, especially in the electronics industry. Research is underway. The manufacture of flat panel display devices using such gravure printing technology has the advantage of simplifying the process and making the production of larger substrates faster and maximizing the production yield.

Korean Patent Laid-Open Publication No. 2004-54411 discloses a technique for transferring a resist to a printing roll through a gravure roll and contacting the transferred resist layer with an etch target layer through a gravure roll. .

However, in this prior art, there is a problem that the setting of the working environment is difficult when the production conditions are changed. In other words, when production conditions such as a different printing pattern is required or the size of the target substrate currently being printed is changed, the operator had to replace and mount a plurality of gravure rolls by the operator through full manual work. Gravure roll is usually a heavy body having a large load such as SUS, in the process of performing the replacement operation by the operator's manpower, there is always a risk of worker injury. In addition, there is a concern that the worker may be injured during the replacement operation through full manual work, and the possibility of damage to the device that may occur during the replacement process increases, resulting in a decrease in production yield due to a slow gravure roll replacement operation.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a gravure roll printing apparatus that can facilitate replacement of gravure rolls.

The present invention for achieving the above object is a base; An exchange support unit having an exchange support disposed on an upper side of the base and an exchange center axis mounted on one end of the exchange support, and a plurality of grippers capable of receiving an end portion of the center axis of the gravure roll. A gravure roll exchanger including an exchange grip unit rotatably mounted to the exchange support unit; A gravure roll mounting part disposed on an upper surface of the base to accommodate the gripper to mount the gravure roll and rotating the mounted gravure roll; And it provides a gravure roll printing apparatus having a; gravure exchanger and the transfer portion for moving the gravure roll mounting portion relative to each other.

In the gravure roll printing apparatus, the gravure roll mounting portion may be disposed on the transfer portion.

In the gravure roll printing apparatus, the gravure roll exchanging unit may be disposed on the transfer unit.

In the gravure roll printing apparatus, the conveying unit may include: a plurality of conveying rails arranged horizontally in the conveying direction, and a conveying table conveyed on the conveying rails.

In the gravure roll printing apparatus, the transfer unit may further include a transfer drive unit for transferring the transfer table.

In the gravure roll printing apparatus, the conveying drive unit: a conveying driver for generating a conveying driving force for conveying the conveying table, a conveying lead screw disposed in parallel with the conveying rail, one end of which is connected to the conveying driver; It may be provided with a transfer ball screw which is movable on the transfer lead screw, one side is connected to the transfer table.

In the gravure roll printing apparatus, one or more exchange center axis protrusions may be provided on an outer circumferential surface of the exchange center axis, and an exchange center axis stopper that may engage with the protrusions may be provided inside the exchange support.

In the gravure roll printing apparatus, the exchange support unit may further include: an exchange center axis driver for rotating the exchange center axis.

In the gravure roll printing apparatus, the exchange center axis driver comprises: an exchange center axis driver for generating a driving force for rotating the exchange center axis, an exchange center axis drive pulley disposed at one end of the exchange center axis driver, and the exchange It is disposed parallel to the central axis drive pulley, and has an exchange center axis driven pulley connected to the exchange center axis at one end, and an exchange center axis drive belt connecting the exchange center axis drive pulley and the exchange center axis driven pulley. It may be.

In the gravure roll printing apparatus, the plurality of grippers may be radially formed from the exchange center axis, and may be evenly divided based on the exchange center axis.

In the gravure roll printing apparatus, the gripper has two mutually corresponding grips, and the grip unit includes a grip fixing protrusion and the grip fixing protrusion which protrude on one side of the respective grip in the same direction. It may further comprise grip fixing means for securing the two grips, with the engaging grip fixing portion.

In the gravure roll printing apparatus, the grip unit comprises: a gripper which is rotatably mounted on the exchange central axis, a gripper composed of two grips rotatably mounted on the grip unit case, and the gripper; It may be provided with a gripper actuator connected to the grip for driving.

In the gravure roll printing apparatus, the gravure roll mounting portion includes: a gravure roll mounting portion case, a gripper accommodation portion formed outside the gravure roll mounting portion case to accommodate the gripper, and to support an outer circumferential surface of the gravure roll central axis. A gravure roll central axis supporter movable in a plane perpendicular to the gravure roll central axis inside the gravure roll mounting part case, and a gravure roll central axis power generator for generating a rotational driving force for rotating the gravure roll central axis; A gravure roll central axis power unit having a gravure roll central axis power transmission unit connecting the gravure roll central axis power unit and the gravure roll central axis power unit may be provided.

In the gravure roll printing apparatus, the gravure roll center axis and the gravure roll center axis motor may be arranged on the same line.

In the gravure roll printing apparatus, the gravure roll center axis and the gravure roll center axis motor may be disposed in parallel with each other.

In the gravure roll printing apparatus, an upper part of the base may further include an exchange part case surrounding at least a portion of the gravure roll exchange part.

In the gravure roll printing apparatus, the upper portion of the base is movable up and down, a shielding portion for shielding between the gravure roll exchange unit and the gravure roll operating unit may be further provided.

Hereinafter, a gravure roll printing apparatus according to the present invention will be described with reference to the drawings.

1 shows a gravure roll printing apparatus 10 according to an embodiment of the present invention. The gravure roll printing apparatus 10 includes a base 100, a gravure roll exchanging unit 200, a gravure roll mounting unit 300, and a conveying unit 400. A stage 110 for mounting various substrates S, such as a glass substrate and a synthetic resin substrate, is provided on one surface of the base 100. The stage supporter 120 includes a stage supporter 121 and a stage transport rail 122 to support or transport the stage 110 on the base 100. The length of the stage conveying rail shown in FIG. 1 is illustrative and is not limited to the length shown.

The base 100 may be used in a variety of materials in the range of mass to maintain smoothness. The gravure roll exchange unit 200 is provided on an upper surface of the base 100. The gravure roll exchange unit 200 includes a plurality of spaces for accommodating gravure rolls, and loads one or more storage gravure rolls RR. The gravure roll mounting unit 300 is disposed adjacent to the gravure roll exchange unit 200 on an upper surface of the base 100. The transfer unit 400 is disposed on one surface of the base 100 to enable relative movement between the gravure roll exchange unit 200 and the gravure roll mounting unit 300, thereby enabling the exchange operation of the gravure roll.

2 is a schematic enlarged partial view of the gravure roll exchange unit 200 according to an embodiment of the present invention. The gravure roll exchange unit 200 includes an exchange support unit 220 and an exchange grip unit 230. The exchange support unit 220 includes an exchange support 221 and an exchange center axis 222, and the exchange center axis 222 is mounted at one end of the exchange support 221. The exchange grip unit 230 is mounted to the exchange support unit 220 to take a configuration rotatable through the exchange center axis 222. The exchange grip unit 230 includes a plurality of grippers 231 and gripper actuators 232. The remaining grippers 231 except for at least one of the plurality of grippers 231 take the central axis end 1 of the gravure roll. These gravure rolls (RR) by the replacement grip unit 230 of the gravure roll exchanger 200 preliminarily to replace when the replacement instruction for the gravure roll Ra mounted on the gravure roll mounting unit 300 is issued. One or more will be accepted.

The transfer part 400 is disposed on one surface of the base 100. 3a shows a schematic partial enlarged view of the conveying part. The transfer unit 400 includes a transfer rail 410 and a transfer table 420. A plurality of transfer rails 410 are provided, and each transfer rail 410 is disposed in parallel with each other on one surface of the base 100. The transfer table 420 is provided at an upper portion of the transfer rail 410. The exchange support unit 220 of the gravure roll exchange unit 200 is mounted on the transfer tray 420. The transfer table 420 has a structure in which the transfer rail 410 is engaged, and although not shown in detail, the transfer table 420 is further provided with a bearing for enabling smooth movement in engagement with the transfer rail 410. May be That is, the transfer table 420 and the transfer rail 410 may have a structure such as a linear motion guide.

The transfer unit according to the embodiment of the present invention described above may take a structure in which transfer power is applied by hand, or may be operated through a separate power unit. That is, as shown in FIG. 3B, the transfer part 400a may further include a separate driving device for applying a transfer power. As in the above example, a plurality of transfer rails 410 are disposed on one surface of the base 100, and a transfer table 420 that engages with the transfer rails 410 and has a transferable structure is provided. The exchange support unit 220 of the gravure roll exchanging unit 200 is mounted and supported on the transfer table 420, and the transfer table 420 can be smoothly transferred on the transfer rail 410 as described above. A feed driver 460 is further provided with a feed ball screw 430, a feed lead screw 440, and a feed driver 450 for driving the feed table 420.

The conveying ball screw 430 is formed perpendicular to the conveying direction of the conveying table 420 to the outside of the conveying table 420. The conveying ball screw 430 is integral with the conveying table 420 from the conveying table 420. It may be formed to extend, it may take a structure that is fastened to one side of the feed table 420 as a separate component from the feed table 420. The transfer lead screw 440 is disposed in parallel with the transfer rail 440, and has a structure for engaging the transfer ball screw 430. One end of the transfer lead screw 440 is connected to the transfer driver 450. Therefore, when the feed driver 450 rotates, the feed lead screw 440 connected to the feed driver 450 rotates based on the rotation center of the feed driver 450. By the rotational movement of the feed lead screw 440, the feed ball screw 430 meshed with the feed lead screw 440 moves along the longitudinal direction of the feed lead screw 440, and is transferred by the linear motion of the feed ball screw 430. Base 420 also makes a linear motion on transfer rail 410.

In FIG. 3B, the transfer ball screw 430 has a shape of a cantilever beam disposed perpendicular to the moving direction of the transfer table 420, and the transfer lead screw 440 is illustrated as being disposed outside the vicinity of the transfer rail 410. However, the present invention is not limited thereto. That is, although not shown, the inner groove is provided along the longitudinal direction of the conveying rail to the center of the conveying rail, the conveying lead screw is provided in the inner groove of the conveying rail, and the conveying ball screw faces the conveying rail toward the lower surface of the conveying table. It may be arranged to engage the feed ball screw and the feed lead screw in the inner groove, the feed drive is a timing belt which is fixed to one side of the carriage in the inner groove of the feed rail and / or the feed rail instead of the feed lead screw / feed ball screw And a structure having a timing belt drive motor for driving the timing belt, or configured as a linear motor type to minimize the problem caused by dust generation. Various modifications are possible and are not limited to the above embodiments.

In addition, although not shown, it may take the structure that the conveying part is disposed on the gravure roll mounting side. That is, the gravure roll mounting portion is disposed on the upper portion of the transfer portion, and the gravure roll mounting portion moves instead of the gravure roll exchange portion according to the transfer movement of the transfer portion. It may be understood from the above embodiment that it may be possible.

4A shows a schematic, partially enlarged perspective view of a gravure roll changer. The gravure roll exchange unit 200 includes an exchange support unit 220 and an exchange grip unit 230.

The exchange support unit 220 includes an exchange support 221 and an exchange center axis 222. The exchange support 221 is disposed on the transfer table 420 (see FIG. 3A), and the exchange center axis 222 is mounted at one end of the exchange support 221. 4B shows a partial cross-sectional view taken along line I-I of FIG. 4A, in which the exchange support 221 is provided with an exchange center hole 221 ″, and the exchange center axis 222 is an exchange center hole 221 ″. It may take a structure to be mounted on. In this case, an exchange center bearing 221 ′ may be provided between the exchange center axis 222 and the exchange center hole 221 ″ to enable smooth rotation of the exchange center axis 222. Exchange center bearing 221 ') Can be variously modified according to design specifications, such as may be composed of journal bearings and / or radial bearings.

At the same time a smooth rotational movement of the exchange center axis 222 is made, an element may be further provided to limit unwanted rotation of the exchange center axis 222. In figure 4c there is shown an element for limiting unwanted rotation of the exchange axis, in which a detailed illustration of the other end of the exchange axis is omitted for clarity. As shown in FIG. 4C, an exchange center axis protrusion 223 and an exchange center axis stopper 224 may be further provided to prevent rotation of the exchange center axis 222. The exchange center shaft protrusion 223 is disposed inside the exchange support 221 (indicated by a dotted line) through the bearing between the exchange center axis 222 and the exchange support 221 on the outer circumferential surface of the exchange center axis 222. The shaft stopper 224 is supported and disposed inside the exchange support 221 so as to correspond to the exchange center axis protrusion 223. The exchange center shaft stopper 224 is mounted inside the exchange support 221, and takes a structure rotatable about a hinge axis. The exchange center shaft stopper 224 is rotatably mounted on the outer side of the exchange support 221 so that the exchange center shaft stopper 224 is placed in an open state (dotted line) when the exchange center shaft 222 needs to be rotated. do. On the other hand, when the exchange center axis 222 is to be stopped, the exchange center axis stopper 224 is disposed in a closed state as indicated by a solid line and engages with the exchange center axis protrusion 223 formed on the outer circumferential surface of the exchange center axis 222. This constrains free rotation of the exchange center axis 222. Such rotation about the hinge axis of the exchange center shaft stopper may be made by hand, or may be made through a separate link mechanism or an actuator such as a motor. In addition, although the exchange center shaft stopper and the exchange center shaft protrusion may be disposed outside the exchange support, it is more preferable to arrange the inside of the exchange support in order to minimize the possibility of dust generation.

On the other hand, as shown in Figure 4b, the exchange center axis may take a structure that rotates by the manual operation of the operator through a crank rotating handle (not shown), etc., in some cases mechanical movement of the rotational movement of the exchange center axis An exchange center axis driver 229 may be further provided to perform the operation. That is, as shown in FIG. 4D, the exchange center shaft driver 229 is configured to replace the exchange center shaft driver 225 and the exchange center shaft drive transmission elements 226, 227, and 228 disposed inside the exchange support 221. Equipped. The exchange center shaft driver 225 may be configured as a motor for generating rotational power, for example, a pneumatic motor or an electric motor. One end of the exchange center axis driver 225 is provided with an exchange center axis drive pulley 226 which is one of the exchange center axis drive transmission elements, and corresponds to the exchange center axis drive pulley 226 as an outer circumferential surface of the exchange center axis 222. An exchange center shaft driven pulley 228 is provided at the position. These exchange center shaft drive pulleys 226 and exchange center shaft driven pulleys 227 are connected by an exchange center shaft drive belt 228. Therefore, when the exchange center axis driver 225 rotates, the exchange center axis drive pulley 226 rotates together with the exchange center axis driver 225, and the rotation driving force by the exchange center axis driver 225 is changed to the exchange center axis. It is transmitted to the exchange center shaft 222 via the drive belt 228 and the exchange center shaft driven pulley 227. Here, although the exchange center axis drive transmission element is configured as a pulley type, this is not limited to this as an example for the present invention, but instead of the drive pulley / driven pulley is formed of a drive gear / driven gear may be connected to a direct connection or a timing belt, exchange The central axis drive may have a structure in which the exchange center axis driver is directly connected to the exchange center axis without the exchange center axis drive transmission element.

The exchange grip unit is rotatably mounted to the exchange support unit via the exchange center axis. 5A shows a schematic cross sectional view of the exchange grip unit 230. The exchange grip unit 230 includes a replacement grip unit case 230a and a plurality of grippers disposed in the exchange grip unit case 230a. Here, the plurality of grippers are illustrated as having the same configuration as each other, but are not limited thereto. That is, various configurations are possible, such that each gripper may have a separate shape. In addition, the plurality of grippers are radially formed from the exchange center axis, and may be evenly divided based on the exchange center axis. That is, the angle between each gripper and the adjacent gripper on the basis of the exchange center axis is equally divided so as to form α. In FIG. 5A, four grippers are provided, where α is 90 °. The equally divided arrangement of the grippers can enable smooth rotational movement of the exchange central axis.

Each gripper 231 has two grips 232, and on each of the two grips 232 facing each other, a grip groove 234 for grasping the central axis end of the gravure roll, and each grip 232. 232 are rotatably mounted in opposite rotation directions with respect to the grip rotation shaft 233 disposed inside the exchange grip unit case 230a. The lower end of the grip 232 is provided with a grip extension 235 extending from the grip 232, one end of the grip extension 235 is connected to the grip driver 238. The grip driver 238 is a hydraulic or pneumatically driven pneumatic driver, and one end of the grip extension 235 is rotatable with one end of the grip drive piston 236, such as a pilot, linearly movable by the grip driver 238. Connected. One side of the grip driver 238 is provided with working fluid outlets 238-1 and 238-2 for introducing or discharging a working fluid of liquid to gas to linearly move the grip driving piston 236, It is connected to the working fluid outlets 238-1, 238-2 and in fluid communication with one end of the working fluid lines 239, 240 for flowing the fluid. The working fluid lines 239 and 240 are connected to the working fluid outlet ports 241 and 242 of the working fluid supply device 243. Although not shown, the working fluid supply device obtains the input and output power of the working fluid through a compressor or the like in fluid communication therewith. Fluid communication between the working fluid supply device and the compressor may be via a fluid line (not shown) disposed inside the exchange center axis. In response to a signal applied through a working fluid supply controller (not shown), the working fluid supply device 243 flows in and out a working fluid to a certain port to actuate a constant grip driver to achieve opening or holding operation of the grip. Here, the grip driver 238 is shown as a hydraulic or pneumatic pneumatic driver, which is not limited to this as an example for explaining the present invention may be configured by an electric motor.

In addition, due to the weight of the gravure roll accommodated in the gripper, there is further provided a grip fixing means for preventing the grip state of the gripper is unintentionally released. The grip fixing means is shown in FIG. 5B, in which an extension of one side of the gravure roll central axis is omitted for clarity. As shown in FIG. 5B, the grip fixing means 245 includes a grip fixing protrusion 245-1 and a grip fixing part 245-2. The grip fixing protrusion 245-1 protrudes from one side of the grip 232 facing each other, and the grip fixing portion 245-2 has a recess (not shown) that engages with the grip fixing protrusion 245-1. do. Therefore, when the gravure roll grip state by the grip 232 is to be maintained, the grip holding the grip state of the gravure roll is engaged by engaging the grip fixing part 245-2 with the grip fixing protrusion 245-1. You can also prevent unwanted transitions.

On the other hand, the gravure roll mounting portion for accommodating or drawing out the gravure roll through an exchange action with the gravure roll exchange portion includes a gripper accommodation portion, a gravure roll central axis support portion, and a gravure roll central axis rotation portion. FIG. 6A shows a schematic, partially enlarged perspective view of a gravure roll mount having a space for receiving a gripper of the gravure roll changer. FIG. In order to clarify the description of the space for accommodating the gripper here, a printing roll provided to transfer the ink to the substrate disposed on the stage by transferring the ink attached to the surface of the gravure roll to the gravure roll mounting portion and / or Or the configuration for the blanket or the like is omitted, and only the configuration for one side of the gravure roll mounting portion disposed on both ends of the central axis of the gravure roll is schematically enlarged.

To accommodate the gripper 231 of the gravure roll exchanger 200 (see FIG. 1) on one side of the gravure roll mounting unit 300 facing each other, and more specifically, on one side of the gravure roll mounting unit case 300a. It has a gripper receiving portion 310 for. The gripper receiver 310 has a structure in which at least two side surfaces are opened. That is, the side in the direction in which the gravure roll is drawn in or taken out to the gravure roll mounting portion, and the side that intersects the gravure roll central axis when the gravure roll is inserted in the gravure roll mounting portion has an open structure.

FIG. 6B is a schematic partial perspective view illustrating the gripper 231 being retracted into the gripper accommodating part 310. The exchange grip unit 230 supported by the exchange center shaft 222 is transferred to the gravure roll mounting unit 300 by a transfer unit (not shown), so that the gripper 231 is accommodated in the gripper accommodation unit 310. The gravure roll center axis accommodated in the gripper accommodating part 310 is fixed by a fastening means such as a chuck to achieve a rotational motion.

FIG. 6C shows a schematic cross sectional view of one example of a gravure roll mount taken along line II-II of FIG. 6B, and FIG. 6D shows a schematic partial cross sectional view taken along line III-III of FIG. 6C. The gripper accommodating part 310 accommodates the gripper 231 of the grip state which grasped the gravure roll center axis | shaft 1 of the gravure roll RR. A gravure roll engagement space 311 is formed adjacent to the gripper accommodating portion 310, and the transferable gravure roll center axis support portion 320 capable of supporting the gravure roll center axis 1 in the gravure roll engagement space 311. Is provided, and a magnet ring 2 is provided at a portion of the gravure roll central axis 1 corresponding to the gravure roll central axis support part 320. The gravure roll central axis support part 320 is configured to be transportable in the direction of the arrow, thereby facilitating the drawing-in / out of the gravure roll central axis 1, and the gravure roll center axis support part 320 is formed of an electromagnetic coil. Gravure roll central axis (1) on which the magnet ring (2) is mounted through mutual reaction between the gravure roll central axis support part (320) and the magnet ring (2) according to an electrical signal input to the gravure roll central axis support part (320). ) Is supported. In the present embodiment, the gravure roll central axis support portion has a magnetic bearing structure, but the present invention is not limited thereto, but may also take a ball bearing support structure. The configuration can be taken.

The gravure roll mounting unit 300 includes a gravure roll central shaft power unit 330 mounted on the gravure roll mounting unit case 300a. The gravure roll central axis power unit 340 transmits gravure roll central axis power generated by the gravure roll central axis motor 331 and the gravure roll central axis motor 331 to generate power for rotationally driving the gravure roll RR. Sections 332,333,334,335,336,337,338.

Power generated by the gravure roll central axis motor 331 is transmitted to the motor drive pulley 333 formed at one end of the gravure roll central axis motor motor 332. The motor drive pulley 333 is connected with the motor driven pulley 335 through the motor belt 334, the rotational power of the motor drive pulley 333 is transmitted to the motor driven pulley 334. One end of the motor driven pulley 334 is mounted with a magnetic chuck 337 via a power transmission shaft 336. One end of the gravure roll central axis 1 parallel to the magnetic chuck 337 is provided with a magnetic chuck corresponding plate 338 corresponding to the magnetic chuck 337.

The power transmission shaft 336 and the magnetic chuck 337 are preferably arranged on the same line as the gravure roll central axis 1, and they are transferable in the direction of the arrow. That is, the magnetic chuck 337 mounted at one end of the power transmission shaft 336 may be coupled to or separated from the magnetic chuck counterpart plate 338 so that the case opening 301 formed in the gravure roll mounting case 300a may be formed. Can move through. Here, the gravure roll central axis power unit has a component for transmitting power generated from the gravure roll central axis motor, and used a magnetic chuck as a fastening element with the gravure roll central axis, this is an example for explaining the present invention The present invention is not limited thereto. That is, the coupling between the gravure roll central axis and the gravure roll central axis power unit may be a simple mechanical chuck such as an interlocking chuck or a single-drive chuck rather than a magnetic chuck. In addition, in the above embodiment, the gravure roll central axis power transmission unit has a structure in which the gravure roll central axis power generator and the gravure roll central axis are arranged in parallel with each other by having a pulley and a belt. Various configurations are possible, such as being arranged on the same line as and directly connected.

On the other hand, at least the gravure roll exchanger may be surrounded by the exchanger case so as to minimize work defects due to contaminants or dust generated during the gravure roll exchange operation. That is, as shown in FIG. 7, an exchange part case 500 is provided on an upper surface of the base 100, and the gravure roll exchange part 300 is disposed inside the exchange part case 500. The exchange part case 500 has a structure in which a surface perpendicular to the transfer direction of the transfer part 400 is opened to facilitate the transfer of the stage 110 and the gravure roll exchange operation. In addition, the gravure roll exchange unit 200 may be more reliably separated from the gravure roll exchange unit 200 disposed in the exchange unit case 500 after the gravure roll exchange operation is performed, and the space where the gravure roll printing operation is performed. And a shield 600 that can shield between the gravure roll operator 300.

8 is a schematic partial perspective cross-sectional view of one example of shield 600. The shield 600 includes a shield shutter 610 movable vertically to the base 100 to shield, and a shield shutter support 620 supporting the shield shutter 610 to move vertically to the base 100. do. The shielding shutter 610 includes a shielding screen 611 for shielding the open portion of the exchanger case 500, a shielding screen frame 612 for supporting the shielding screen 611, and a shielding screen frame 612. It is composed of a shielding shutter connection portion 613 for mounting on the shielding shutter support 620, the shielding shutter connection portion 613 is a shielding shutter support 620 through a shielding shutter support opening 622 formed in the shield shutter support 620 Is mounted on.

The shielding shutter support 620 transmits a driving force generated from the shielding shutter case 621 for supporting the shielding shutter, the shielding shutter driver 623, and the shielding shutter driver 623 for driving the shielding shutter 610. A shielding shutter drive pulley 624, a shielding shutter driven pulley 626, and a shielding shutter driving belt 625 connecting the pulleys, and both ends of the shielding shutter driving belt 625 are provided with a shielding shutter connection part 613. Mounted at both ends, the shielding shutter drive belt 625 is tension-supported by the shielding shutter drive pulley 624 and the shielding shutter driven pulley 626.

When an operation signal is input to the shielded shutter driver 623, the shielded shutter driver 623 rotates according to the signal, so that the shielded shutter driver pulley 624 connected to the shielded shutter driver 623 is shielded shutter driven pulley 626. By moving the shielded shutter drive belt 625 tension-supported together, the shielded shutter connection portion 613 connected to the shielded shutter drive belt 625 is moved. Therefore, the shielding shutter 610 moves up and down as the shielding shutter driver 623 rotates according to an input operation signal to isolate or communicate the gravure roll exchange unit 200 and the gravure roll mounting unit 300. The shield is not limited to the above configuration, and various modifications are possible.

Hereinafter, the exchange process of the gravure roll according to the embodiment of the present invention described above. 9A to 9D, a process of replacing a gravure roll according to an embodiment of the present invention is shown. The same components as those described in the above embodiment are omitted, and detailed descriptions of the components are omitted and the gravure roll printing operation is omitted. Detailed description of the components, such as the printing roll / blanket (B) for the description will be omitted. First, in FIG. 9A, the substrate S disposed on the stage 110 is placed in a standby state, and an exchange command is issued to the gravure roll Ra mounted on the gravure roll mounting unit 300. In this case, the gravure roll exchange control unit (not shown) instructs the gravure roll exchange unit to find the gripper 231 not loading the gravure roll, so that the empty gripper 231 not loading the gravure roll is the gravure roll mounting unit 300. Rotate to face the The operation of rotating the grip unit having such a gripper 231 may be performed by an exchange center shaft driver 229 (see FIG. 4D). In addition, the gravure roll exchange control unit applies the shielding shutter 610 rising signal to the shielding shutter driver 623 of the shielding part 600 so that the shielding shutter 610 is raised.

Then, as shown in FIG. 9B, the gravure roll exchange control unit applies an operation signal to the transfer driver 213 (see FIG. 3B), and transfers the transfer unit 400 by the driving force generated by the transfer driver 213. The base 420 is transferred on the transfer rail 410 so that the gripper 231 is drawn into the gripper receiver 310. The gravure roll change control unit applies a signal to the grip unit to operate the gripper actuator 238 (see FIG. 5A) so that the grip of the gripper 231 is shifted from the grip state to the released state. At this time, it is preferable that the gripper 231 is removed before the gripper 231 is inserted into the gripper accommodating part 310 so that the gripper 231 is pulled in the opened state. Then, the gripper 231 is again placed in the grip state to receive the gravure roll (Ra) to be replaced. At this time, the gravure roll center shaft support part (not shown, provided in FIG. 6C) provided in the gravure roll mounting part 300 moves to the inside of the gravure roll mounting part case, and the gravure roll center axis and the gravure roll central axis power part (not shown). 6c) is released, leaving the gravure roll in a free state from which it can be withdrawn from the gravure roll mounting.

Then, as shown in FIG. 9C, the gravure roll exchange unit 200 is returned to the exchange case 400 by the transfer unit 400, and the shield unit 600 lowers the shield shutter 620 to replace the exchange case. 400 shields. And the gravure roll exchange control part rotates the new gravure roll R _R which is exchanged toward the gravure roll mounting part 300 (FIG. 9D).

Thereafter, the shielding shutter 610 of the shield 600 is raised again, and the gravure roll exchange unit 200 is moved to the gravure roll mounting unit 300 by the transfer unit 400. Then, the gripper 231, the gravure roll central shaft support and the gravure roll central shaft power unit reversely operate the above release process, thereby mounting a new gravure roll on the gravure roll mounting unit 300 (FIG. 9E).

Thereafter, as shown in FIG. 9F, the gravure roll exchange unit 200 is returned to the exchange unit case 500 again, and the shielding unit 600 is shielded to complete the exchange operation of the gravure roll.

The above embodiments are examples for describing the present invention, but the present invention is not limited thereto. That is, the gravure roll exchange operation is performed through the gravure roll exchange unit, but may be performed by manual operation depending on the manpower of the worker, and a separate dust collecting device for preventing contamination of the working environment that may occur during the gravure roll exchange operation may be provided. A gravure roll exchanger for accommodating one or more replacement storage gravure rolls that may be preliminarily loaded and having a plurality of grippers, and a gravure roll mounting portion for accommodating grippers to exchange gravure rolls; Various modifications are possible in the range provided with the conveying part which enables these relative movements.

The gravure roll printing apparatus according to the present invention having the configuration as described above has the following effects.

First, the gravure roll printing apparatus according to the present invention includes components such as a gravure roll exchanging unit, thereby eliminating the risk of injury of the worker involved in the gravure roll exchanging operation made through the manual labor by a conventional worker.

Secondly, the gravure roll printing apparatus according to the present invention can eliminate the possibility of damage to the apparatus that could have occurred in the process of carrying a large load of gravure roll by making the gravure roll conveying operation easier.

Third, the gravure roll printing apparatus according to the present invention can minimize the reduction in yield due to the interruption of the production process by allowing the gravure roll replacement operation can be made quickly.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims (17)

Base; An exchange support unit having an exchange support disposed on an upper side of the base and an exchange center axis mounted on one end of the exchange support, and a plurality of grippers capable of receiving an end portion of the center axis of the gravure roll. A gravure roll exchanger including an exchange grip unit rotatably mounted to the exchange support unit; A gravure roll mounting part disposed on an upper surface of the base to accommodate the gripper to mount the gravure roll and rotating the mounted gravure roll; And A gravure roll printing apparatus comprising: a transfer unit for moving the gravure exchange unit and the gravure roll mounting unit relative to each other. The method of claim 1, The gravure roll printing unit is disposed on the conveying unit. The method of claim 1, And the gravure roll exchanging portion is disposed on the conveying portion. The method of claim 3, wherein The transfer unit: A plurality of conveying rails disposed horizontally in the conveying direction; A gravure roll printing apparatus, characterized by comprising a transfer table for transferring on the transfer rail. The method of claim 4, wherein The transfer unit, the gravure roll printing apparatus characterized in that it further comprises a transfer drive for transferring the transfer table. The method of claim 5, The transfer drive unit: A conveying driver for generating a conveying driving force for conveying the conveying table; A transfer lead screw disposed in parallel with the transfer rail and having one end connected to the transfer driver; A gravure roll printing apparatus comprising: a transfer ball screw movable on the transfer lead screw and having one side connected to the transfer table. The method of claim 1, Gravure roll printing apparatus, characterized in that the outer peripheral surface of the exchange center axis is provided with at least one exchange center axis projection, the inside of the exchange support is provided with an exchange center axis stopper engageable with the protrusion. The method of claim 1, The exchange support unit is: A gravure roll printing apparatus, further comprising: an exchange center axis drive unit for rotating the exchange center axis. The method of claim 8, The exchange central axis drive unit: An exchange center axis driver for generating a driving force for rotating the exchange center axis; An exchange center axis drive pulley disposed at one end of the exchange center axis driver; An exchange center axis driven pulley disposed in parallel with the exchange center axis drive pulley and connected to the exchange center axis at one end thereof; A gravure roll printing apparatus, comprising: an exchange center axis drive belt connecting the exchange center axis drive pulley and the exchange center axis driven pulley. The method of claim 1, And the plurality of grippers are radially formed from the exchange center axis and are divided evenly on the basis of the exchange center axis. The method of claim 1, The gripper has two corresponding grips, The exchange grip unit has a grip fixing means for fixing the two grips, having a grip fixing protrusion protruding on one side of each grip in the same direction facing each other and a grip fixing portion engaged with the grip fixing protrusion. A gravure roll printing device further comprising. The method of claim 1, The replacement grip unit is: A grip unit case rotatably mounted to the exchange central axis; A gripper composed of two grips rotatably mounted to the exchange grip unit case; And a gripper actuator connected to the grip for driving the gripper. The method of claim 1, The gravure roll mounting portion: Gravure roll mounting case, A gripper accommodating part formed at an outer side of the gravure roll mounting part case to accommodate the gripper; A gravure roll center axis supporter movable on a plane perpendicular to the gravure roll center axis from the inside of the gravure roll mounting part case to support the gravure roll center axis outer circumferential surface; And a gravure roll central axis power unit having a gravure roll central axis power unit for generating a rotational driving force for rotating the gravure roll central axis, and a gravure roll central axis power unit connecting the gravure roll central axis motor and the gravure roll central axis power transmission unit. Gravure roll printing device characterized in that. The method of claim 13, And the gravure roll central axis and the gravure roll central axis motor are arranged on the same line. The method of claim 13, The gravure roll printing apparatus, characterized in that the gravure roll central axis and the gravure roll central axis motor is disposed in parallel to each other. The method of claim 1, The gravure roll printing apparatus of claim 1, further comprising an exchange part case surrounding at least a part of the gravure roll exchange part. The method of claim 16, The gravure roll printing apparatus of claim 1, wherein the upper portion of the base is movable up and down, and further includes a shielding portion capable of shielding between the gravure roll exchanging portion and the gravure roll operating portion.

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