KR20110122248A - Pattern printer - Google Patents

Abstract

PURPOSE: A pattern printing device is provided to efficiently print with high precision by applying a pattern roll with gravure and blanket roll functions. CONSTITUTION: A pattern printing device comprises a work stage(50), a pattern roll(40), and a pattern roll shaft. Printing work is performed on the work stage for a substrate, which is loaded to the top. The pattern roll comprises a body, a buffer layer, and a pattern layer. The buffer layer is arranged on the outer surface of the roll body. The pattern layer is arranged on the outer surface of the buffer layer. The pattern roll is arranged at an interval from the work stage. The pattern roll patterns ink to the substrate on the work stage. The pattern roll shaft can be selectively separated from the pattern roll.

Description

Pattern printing device {Pattern printer}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pattern printing apparatus, and more particularly, by applying a pattern roll in which job change is easier and simpler in structure than the conventional one, and the functions of gravure and blanket roll are integrated into one. The present invention relates to a pattern printing apparatus capable of efficiently printing a high degree of directly.

A printing apparatus for printing a color filter (or TFT pattern) of a liquid crystal display (LCD) or forming a resist pattern (ink, ink) on a substrate such as an electromagnetic interference (EMI) filter for a plasma display panel (PDP) may be used. According to the following three kinds can be classified.

The first method is a method in which ink is transferred while transferring ink to a gravure roll, a blanket roll, and a substrate. The second method is printing in which ink is transferred to a gravure plate, a blanket roll, and a substrate. The third method is a method in which ink is transferred while the ink is transferred to the blanket roll, the inversion pattern plate (removing the inversion pattern of the blanket roll through the inversion pattern plate) and the substrate.

Among them, the first and second methods are called gravure offset printing devices, which transfer printing onto a blanket roll that can absorb the degree of curvature of the substrate, and then print the result onto a substrate to enable a higher degree of printing. will be.

However, such a printing apparatus, ie, a gravure offset printing apparatus, requires a gravure plate and a blanket roll, or a gravure roll and a blanket roll, and thus, the printing apparatus is complicated and expensive.

In order to solve this problem, a pattern roll in which the gravure and the blanket roll are integrated into one, that is, the functions of the gravure and the blanket roll are integrated, is required. If such a pattern roll is developed, the offset printing is not performed through the pattern roll. It is expected that a high degree of direct printing can be efficiently performed by directly printing on a substrate.

However, in developing such a pattern roll, if the job change for the pattern roll is cumbersome or inconvenient, there is a possibility that the overall productivity may be lowered due to an increase in time loss required for the job change. There is also a need for improvements in the structure that make it easy to perform.

It is an object of the present invention to efficiently print a high degree of direct printing by applying a pattern roll in which job change is easier and simpler in structure, and the functions of gravure and blanket roll are integrated into one. It is to provide a pattern printing apparatus is possible.

The object is, according to the present invention, a work stage (print stage) is a printing operation for the substrate loaded on the upper surface (work stage); A roll body, a buffer layer disposed on an outer surface of the roll body, and a pattern layer disposed on an outer surface of the buffer layer, and are spaced apart from the work stage to pattern ink (resist) on a substrate on the work stage. A pattern roll to make); And a pattern roll shaft selectively separable from the pattern roll, the pattern roll shaft being coupled to a central region of the pattern roll along a length direction of the pattern roll to form a rotation axis of the pattern roll. Is achieved by

The pattern roll may further include a pattern surface layer disposed on an outer surface of the pattern layer.

The roll body may be provided with carbon fiber reinforced plastic (CFRP), the buffer layer may be provided with a rubber (rubber), the pattern surface layer may be a diamond coating layer.

A dispenser for applying the ink to an outer surface of the pattern roll; And a doctor blade disposed around the dispenser and removing unnecessary ink from the ink applied to the outer surface of the pattern roll, wherein the pattern roll directly transfers the ink to the substrate. Can be patterned.

The doctor blade may form a body on the pattern roll and the device body.

The apparatus may further include a sensing unit provided at one side of the device body and forming a body with the doctor blade and the pattern roll, and sensing a relative alignment position of the substrate with respect to the pattern roll.

Is coupled to one end of the pattern roll shaft, may further include a shaft drive for driving the pattern roll shaft for rotation or movement of the pattern roll.

The apparatus may further include a shaft clamp disposed in the other end region of the pattern roll shaft and detachably clamping an exposed free end of the pattern roll shaft coupled to the shaft driving unit.

The shaft clamp may be provided to be movable along a direction in which a printing operation is performed, and the shaft clamp may include a plurality of clamp members clamping the exposed free end of the pattern roll shaft while being approached or spaced apart from each other. .

At least a portion may further include a stage moving support unit coupled to a lower portion of the work stage to support the work stage to be movable.

The lower surface of the work stage may further include a support plate which is provided in parallel with the work stage spaced apart from the work stage, wherein the stage moving support portion in a state in which at least a portion is coupled to the lower surface of the work stage It may include four moving support units are respectively provided in the four corner regions of the upper surface of the support plate.

The moving support unit, the motor controlled by the control unit; A ball screw coupled to the motor and rotatable in a forward and reverse direction by the motor; A moving block coupled to the ball screw and movable along the longitudinal direction of the ball screw when the ball screw rotates; An intersecting block coupled to the moving block and freely moving in a direction crossing the moving block; Fixed portions fixed at both ends to an upper surface of the cross-block and a lower surface of the work stage; And at least one rail provided on an upper surface of the support plate to guide the movement of the movable block.

The moving support unit may include a plurality of protrusions protruding upward from an upper surface of the moving block and having through holes formed therein; A moving shaft movably coupled to the protruding portion so as to pass through the through hole, and at least a portion of which is fixed to the cross block; And a rotation support part provided on an opposite side of the motor with the ball screw therebetween to rotatably support an end of the ball screw.

According to the present invention, the job change is easier than the conventional one, and the structure is simple, and by applying a pattern roll in which the functions of gravure and blanket roll are integrated into one, an efficient high degree of direct printing is achieved. It becomes possible.

1 to 3 are each a front view, a plan view, and a side view of a pattern printing apparatus according to an embodiment of the present invention.
4 is a side view illustrating a process of replacing the pattern roll in the pattern printing apparatus.
5 is a cross-sectional view of the pattern roll.
6 is a schematic perspective view of the work stage area.
FIG. 7 is a schematic plane projection view of FIG. 6.
FIG. 8 is an enlarged perspective view of area A of FIG. 7.
9 is a cross-sectional view taken along line CC of FIG. 8.
10 is a partial plan view of FIG. 1.
FIG. 11 is a diagram illustrating a state in which the work stage of FIG. 10 moves on the X axis.
FIG. 12 is a diagram illustrating a state in which the work stage of FIG. 10 is moved on the Y axis.
FIG. 13 is a diagram illustrating a state in which the work stage of FIG. 10 is rotated along the θ axis.

In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings which illustrate preferred embodiments of the present invention and the contents described in the accompanying drawings.

Hereinafter, the present invention will be described in detail by explaining preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in the drawings denote like elements.

For reference, the substrate to be described below may be a color filter (or TFT pattern) of an LCD (Liquid Crystal Display), or a substrate required in the IT industry, such as an electromagnetic interference (EMI) filter, a flexible touch screen panel, or the like. It may include, in the present embodiment will be described as simply a substrate without distinguishing them.

1 to 3 are respectively a front view, a plan view, and a side view of a pattern printing apparatus according to an embodiment of the present invention, FIG. 4 is a side view illustrating a process of replacing a pattern roll in a pattern printing apparatus, and FIG. 5 is a pattern 6 is a schematic perspective view of the work stage area, FIG. 7 is a schematic planar projection view of FIG. 6, FIG. 8 is an enlarged perspective view of area A of FIG. 7, and FIG. 9 is a CC of FIG. 8. 10 is a partial plan view of FIG. 1, FIG. 11 is a view illustrating a state where the work stage of FIG. 10 is moved along the X axis, and FIG. 12 is a view when the work stage of FIG. 10 is moved along the Y axis. It is a figure which shows the state, and FIG. 13 is a figure which shows the state in which the work stage of FIG. 10 rotated by (theta) axis.

Referring to these drawings, but mainly referring to FIGS. 1 to 5, the pattern printing apparatus of the present embodiment includes a work stage 50 and a work stage 50 in which a print job is performed on a substrate loaded onto an upper surface. And a pattern roll 40 for patterning ink (resist) to a substrate on the work stage 50, ie, performing a printing operation.

Here, the pattern roll 40 is a so-called gravure and blanket roll function incorporating the functions of a conventional gravure (roll or plate) that transfers ink and a conventional blanket roll that transfers ink from gravure to a substrate. It is applied to the combined pattern roll 40. When the gravure and blanket roll function combined pattern roll (40, hereinafter referred to as pattern roll) is applied as in this embodiment, it is possible to print directly onto the substrate without offset printing as in the prior art, so that a high degree of direct printing can be efficiently performed. Do. Hereinafter, each configuration provided in the pattern printing apparatus of the present embodiment will be described in detail.

The work stage 50 is a place where the printing operation with respect to a board | substrate advances by the pattern roll 40 moved and rotated toward the work stage 50. As shown in FIG. It can be made of stone slabs or made of metal.

Referring to FIG. 6, a tiled air line 50a may be formed on the surface of the work stage 50. A plurality of vacuum holes (not shown) may be provided on an intersection point at which the tiled air line 50a crosses each other or on the tiled air line 50a, and a porous air guide member (not shown) is coupled to the vacuum hole. Can be. The porous air guide member may be made of a porous material. Of course, instead of the tiled air line 50a, only a plurality of vacuum holes may be formed.

A lower portion of the work stage 50 may be provided with a plurality of partitions (not shown) for partitioning the vacuum holes into a plurality of groups. The partitions may be formed to be recessed in a direction from the bottom surface of the work stage 50 to the upper surface. In this case, each of the partitions may be provided with an air supply or blow-out line (not shown) that can be individually controlled. Thus, when the air flow in one direction through the air supply or blow-out line is made, the substrate can be adsorbed by the vacuum on the surface of the work stage 50, if the opposite air flow is made the substrate of the work stage 50 It may be slightly injured from the surface.

On the other hand, unlike the prior art, the pattern roll 40 is a roll in which the functions of the gravure and the blanket roll are merged into one and receive ink and print directly onto the substrate.

The pattern roll 40 is provided in the device body 10. In addition to the pattern roll 40, the device body 10 is further provided with a doctor blade 20 and a detector 28 and one set, namely, To form a body. In other words, when the apparatus main body 10 is moved toward the work stage 50, the configuration supporting the pattern roll 40, including the pattern roll 40 provided on the apparatus main body 10, the doctor blade 20 and The detector 28 is moved together. At this time, the dispenser 30 shown in FIG. 1 does not move together.

Prior to the description of the pattern roll 40, the dispenser 30, the doctor blade 20, and the sensing unit 28 will be described first.

The dispenser 30 (see FIG. 1) serves to apply ink (resist) to the outer surface of the pattern roll 40. The ink may be black ink, monochrome ink of a different color, or color ink.

The dispenser 30 may be provided to be movable along the longitudinal direction of the pattern roll 40, to be able to move up and down at the corresponding position, or to be foldable in one direction. If such a structure is applied, it is possible to increase the coating efficiency of the ink, there is an advantage that can avoid the interference with the surrounding structure. Of course, the scope of the present invention need not be limited thereto.

When ink is transferred to the surface of the pattern roll 40 by the dispenser 30, the ink must be received only in the outer groove 44a (see FIG. 5) of the pattern roll 40 so that print quality can be matched. However, when the dispenser 30 transfers the ink to the surface of the pattern roll 40, it is difficult to allow the ink to be received only in the substantially grooved portion 44a.

Therefore, when the dispenser 30 transfers (applies) the ink to the surface of the pattern roll 40, the ink is spread out widely on all of the surface of the pattern roll 40, and when the application is completed, the groove 44a of the intaglio shape is completed. By removing the unnecessary ink applied to the remaining surface 44b (see FIG. 5) except for that, the ink can be finally received only in the desired groove portion 44a. For this purpose, the doctor blade 20 is provided.

As shown in FIG. 1, the doctor blade 20 includes a blade body 21, a rotating body 22 rotatably coupled to the blade body 21, and a rotating body 22. A knife holder 23 connected to one side and a knife 24 detachably coupled to the knife holder 23 may be provided.

The knife 24 may have a length approximately similar to the length of the pattern roll 40. The tip of the knife 24 is disposed to be inclined with respect to the outer surface of the pattern roll 40 in the state in contact with the surface of the pattern roll 40 serves to scrape the surface of the pattern roll 40. As such, when the tip of the knife 24 is in contact with the surface of the pattern roll 40 and the pattern roll 40 is rotated in this state, the groove portion 44a is removed from the ink applied to the entire outer surface of the pattern roll 40. The ink on the remaining side 44b can be naturally removed.

The detector 28 is provided at one side of the apparatus body 10 to detect a relative alignment position of the substrate with respect to the pattern roll 40. In the present embodiment, the sensing unit 28 is applied to a plurality of alignment cameras 28. When the sensing unit 28 detects the relative alignment position of the substrate with respect to the pattern roll 40, the control unit (not shown) controls the operation of the stage moving support unit 70 (see FIGS. 6 and 7) based on this information. As a result, the print job proceeds.

On the other hand, the pattern roll 40 in this embodiment is a roll in which the functions of the gravure and the blanket roll are integrated as one, and the ink is directly received and printed directly on the substrate as described repeatedly.

As shown in FIG. 5, the pattern roll 40 includes a roll body 41 in which a shaft hole 41a is formed in an inner central region, a buffer layer 42 disposed on an outer surface of the roll body 41, and The pattern layer 43 arrange | positioned at the outer surface of the buffer layer 42, and the pattern surface layer 44 arrange | positioned at the outer surface of the pattern layer 43 are provided.

Since the roll body 41 is a part which forms the frame | skeleton of the pattern roll 40, it should not be deformed easily. Therefore, the roll body 41 may be made of carbon fiber reinforced plastic (CFRP). In contrast, the buffer layer 42 may be provided as a rubber because it is provided to buffer the force applied to the substrate to some extent. The pattern layer 43 may be a synthetic fiber material in which ink may be easily transferred, and the pattern surface layer 44 protecting the pattern layer 43 may be a diamond coating layer. Of course, since these matters are only one embodiment, the scope of the present invention is not necessarily limited thereto.

On the other hand, in the present embodiment, since the pattern roll 40 is moved and rotated toward the work stage 50 to perform a print job for the substrate placed on the work stage 50, the apparatus body is provided with a pattern roll 40 Means for supporting the pattern roll 40 and means for rotating and moving the pattern roll 40 are provided at 10. In addition, the pattern roll 40 to be applied to the pattern printing apparatus of the present embodiment is equipped with means for the device body 10 because a job change is easier than before. Hereinafter, such configurations, that is, the pattern roll shaft 11, the shaft driver 12, and the shaft clamp 13 will be described.

The pattern roll shaft 11 rotatably supports the pattern roll 40. That is, the pattern roll shaft 11 is coupled to the pattern roll 40 in a form that is supported by being fitted into the shaft hole 41a of the pattern roll 40 along the longitudinal direction of the pattern roll 40. Therefore, since the pattern roll 40 can be separated from the pattern roll shaft 11 as shown in FIGS. 3 and 4, the job change becomes easier than before.

The shaft driver 12 is coupled to one end of the pattern roll shaft 11 and is a means for driving the pattern roll shaft for rotation or movement of the pattern roll 40. The shaft driving unit 12 is connected to one end of the pattern roll shaft 11 and rotates the pattern roll shaft 11 according to its function, and is connected to the rotating unit 12a and the pattern roll shaft. And a moving unit 12b for moving the rotating unit 12a, including (11). The rotary unit 12a may be a rotary motor, or the like, and the mobile unit 12b may be a linear motor, a ball screw, a cylinder, or the like.

The shaft clamp 13 is disposed at the other end region of the pattern roll shaft 11 opposite to the shaft drive 12 to serve to detachably clamp the exposed free end of the pattern roll shaft 11. That is, when the printing operation is performed, as shown in FIG. 3, the shaft clamp 13 rotatably clamps the exposed free end 11a of the pattern roll shaft 11, but when the pattern roll 40 needs to be replaced or maintained, the shaft clamp ( 13 de-clamps the exposed free end 11a of the pattern roll shaft 11. Accordingly, the shaft clamp 13 includes a plurality of clamp members 13a for clamping the exposed free end 11a of the pattern roll shaft 11 while being driven or spaced apart from each other. Since the shaft clamp 13 also needs to be moved toward the work stage 50 together with the pattern roll shaft 11 when the print job is in progress, the shaft clamp 13 is attached to the apparatus main body 10 along the direction in which the print job proceeds. Are movably coupled. Its coupling scheme may be a linear motor or the like.

As such, in the present embodiment, the pattern roll 40 is coupled in a form fitted to the pattern roll shaft 11 and the pattern roll shaft 11 is connected to the shaft driving portion 12 at one end thereof in a form of a cantilever beam. As shown in FIG. 4, when the clamping state of the shaft clamp 13 is released and the pattern clamp 40 is removed from the pattern roll shaft 11 while the shaft clamp 13 is pushed in one direction, the job change is much easier than before. .

On the other hand, as described above, in the pattern printing apparatus of the present embodiment, since the pattern roll 40 is being moved toward the work stage 50 and rotated on the substrate, the printing operation is performed, so that the pattern roll 40 In order to align the relative alignment, the work stage 50 itself must be moved in the X-axis direction (see FIG. 11), the Y-axis direction (see FIG. 12), and the θ-axis direction (see FIG. 13).

Of course, in some cases, ie, the relative alignment position of the pattern roll 40 with respect to the substrate while moving the apparatus body 10 on the side of the pattern roll 40 in the X-axis direction, the Y-axis direction, and the θ-axis direction. In this embodiment, the work stage 50 may be moved in the X-axis direction (see FIG. 11), the Y-axis direction (see FIG. 12), and the θ-axis direction (FIG. 13). How to move around.

To this end, that is, the stage movement support part 70 is provided to align the substrate while moving the work stage 50 in the X-axis, Y-axis, and θ-axis directions. As such, when the work stage 50 is moved to match the relative alignment position of the substrate with respect to the pattern roll 40, a technique for printing a job in a technical field requiring a relatively high degree, for example, an electromagnetic interference (EMI) filter It is good to apply to the field.

As shown in FIG. 6, at least a portion of the stage moving support part 70 is coupled to the lower portion of the work stage 50 to support the work stage 50 to be movable. The stage moving support unit 70 will be described first with reference to FIGS. 6 to 9 as follows.

At least a portion of the stage moving support part 70 is coupled to a lower portion of the work stage 50, and is substantially rectangular in shape with respect to the plate surface of the work stage 50, thereby moving the work stage 50 to the plate surface direction of the work stage 50. (X-axis, Y-axis and θ-axis direction) to support the movement. The operation of the stage movement supporting unit 70 is performed by a controller (not shown) based on the above-described signal of the sensing unit 28.

Most of the stage moving support part 70 is coupled to the upper surface of the support plate 58, and only a part thereof is coupled to the lower surface of the work stage 50 to connect the support plate 58 and the work stage 50. . The stage moving support unit 70 includes four moving support units 70a to 70d respectively provided at four corner regions of the upper surface of the support plate 58. As a result, a position where four moving support units 70a to 70d are arranged is called a rectangular composition arrangement.

As such, when four moving support units 70a to 70d are arranged in four corner regions of the upper surface of the support plate 58, the four support members 70a to 70d have a more stable support structure than the three-point support type that can be expected. Even when the huge pattern roll 40 presses the work stage 50 at a high pressing force in the printing operation, the work stage 50 does not move arbitrarily. That is, the jungle can be minimized. Of course, it is natural that the work stage 50 can be finely moved easily or efficiently in the X-axis, Y-axis, and θ-axis directions.

Hereinafter, for convenience of description, each of the four moving support units 70a to 70d will be referred to as the first to fourth moving support units 70a to 70d, respectively, in the counterclockwise direction based on the region A of FIG. 7. Let's explain.

Each of the first to fourth moving support units 70a to 70d is coupled to the first to fourth motors 71a to 71d and the first to fourth motors 71a to 71d to form a first to fourth motor ( The first to fourth motors 71a to 72d and the first to fourth ball screws 72a to 72d and the first to fourth ball screws 72a to 72d which are rotatable in the forward and reverse directions by 71a to 71d. 1st-4th rotation support parts 73a-73d provided in the opposite side of 71d) and rotatably supporting the edge part of 1st-4th ball screw 72a-72d, and 1st-4th ball screw 72a. First to fourth moving blocks 74a coupled to ˜72d and movable along the longitudinal direction of the first to fourth ball screws 72a to 72d when the first to fourth ball screws 72a to 72d are rotated. ˜74d) and first to fourth freely coupled to the first to fourth moving blocks 74a to 74d and freely moving in a direction crossing the direction in which the first to fourth moving blocks 74a to 74d move. Intersecting blocks 76a to 76d and first to fourth intersections at both ends The lock (76a ~ 76d) including first to fourth fixing part (77a ~ 77d) which is fixed to the lower surface of the upper surface and the workpiece carrier (50).

Each of the first to fourth motors 71a to 71d is independently controlled by a control unit. That is, when the degree to which the substrate adsorbed by vacuum on the work stage 50 with respect to the pattern roll 40 is distorted in the X-axis, Y-axis, and θ-axis directions, the controller controls the first to fourth motors 71a to 71d. ) Are independently controlled to allow the work stage 50 to be moved through the movement of the first to fourth moving blocks 74a to 74d and the first to fourth cross blocks 76a to 76d.

A plurality of first to fourth rails for guiding the movement of the first to fourth moving blocks (74a to 74d) on the upper surface of the support plate 58 for the stable movement of the first to fourth moving blocks (74a to 74d) 75a-75d are provided. Accordingly, a plurality of first to fourth moving blocks 74a to 74d moving along the longitudinal direction of the first to fourth ball screws 72a to 72d by the rotation of the first to fourth ball screws 72a to 72d. It is possible to stably move along the first to fourth rails (75a ~ 75d).

As described above, the first to fourth moving blocks 74a to 74d are moved by the operation of the first to fourth motors 71a to 71d. However, unlike the first to fourth moving blocks 74a to 74d, the first to fourth cross blocks 76a to 76d move freely on the first to fourth moving blocks 74a to 74d.

To this end, as shown in FIGS. 8 and 9, a plurality of protrusions 78a protruding upward from the upper surface of the first moving block 74a and having through holes 79a formed therein, and through holes A moving shaft 59 is movably coupled to the protrusion 78a so as to pass through the 79a, and at least a portion thereof is fixed to the first intersecting block 76a. Through this structure, the first intersecting block 76a may freely move along the longitudinal direction of the moving shaft 59 on the upper surface of the first moving block 74a. Here, the configuration of the protrusion 78a and the moving shaft 59 is provided in the second to fourth moving support units 70b, 70c, and 70d in addition to the first moving support unit 70a shown in FIGS. 8 and 9, respectively. For the sake of convenience, portions of the second to fourth moving support units 70b, 70c, and 70d will be omitted.

The work stage 50 can be more stably supported by arranging the first to fourth moving support units 70a to 70d at four corner regions of the support plate 58. However, in order to align the substrate, the work stage 50 should be moved in the X-axis, Y-axis, and θ-axis directions as necessary, so that the arrangement direction of each of the first to fourth moving support units 70a to 70d may also be It is an important factor. In the present embodiment, the first to fourth balls formed on the first to fourth moving support units 70a to 70d, respectively, to move the work stage 50 in the X, Y, and θ axis directions. Screws 72a to 72d are disposed in substantially the same direction as those arranged along the diagonal direction on the upper surface of the support plate 58, but the first to fourth moving support units 70a to 70d disposed along the diagonal direction. The first to fourth motors 71a to 71d provided in the field are positioned in opposite directions to each other. Due to this structural feature, the work stage 50 can be easily moved in the X-axis, Y-axis, and θ-axis directions (see FIGS. 11 to 13), thereby more efficiently performing alignment work on the substrate. You can do it.

The operation of the pattern printing apparatus having such a configuration will be described below.

First, the substrate is loaded and adsorbed onto the upper surface of the work stage 50 on one side, and the dispenser 30 applies the ink to the outer surface of the pattern roll 40 on the other side. After the ink is applied to the outer surface of the pattern roll 40, the tip of the knife 22 of the doctor blade 20 causes the remaining surface 44b (see FIG. 5) except for the recessed groove 44a (see FIG. 5). ), The unnecessary ink applied to the) is removed.

Next, the apparatus main body 10 is moved toward the work stage 50 by the shaft drive unit 12. During the movement, the relative alignment position of the substrate with respect to the pattern roll 40 is sensed by the sensing unit 28, and the control unit controls the operation of the stage movement supporting unit 70 based on this, so that the work stage 50 moves in the X-axis direction. (See FIG. 11), the Y-axis direction (see FIG. 12) and the [theta] -axis direction (see FIG. 13) are aligned so that the relative position of the substrate with respect to the pattern roll 40 is aligned. Take a look at this.

For example, when the work stage 50 needs to move a predetermined distance to the right side (X axis) as shown in FIG. 11 in the reference state as shown in FIG. 10, the controller operates the first and third motors 71a and 71c. The first and third ball screws 72a and 72c are rotated in one direction. Of course, the second and fourth motors 71b and 71d are not operated. Then, the first and third moving blocks 74a and 74c coupled to the first and third ball screws 72a and 72c have the right side of FIG. 11 along the first to third rails 75a and 75c below them. Go to. At this time, although the second and fourth moving blocks 74b and 74d positioned in the diagonal direction with the first and third moving blocks 74a and 74c are fixed, the upper portions of the second and fourth moving blocks 74b and 74d are fixed. The second and fourth intersecting blocks 76b and 76d provided at the second side may freely move to the right on the second and fourth moving blocks 74b and 74d. Therefore, the work stage 50 can move to the right side (X axis) as shown in FIG. 11 through this series of operating mechanisms.

If the work stage 50 needs to move a predetermined distance to the upper side (Y-axis) as shown in FIG. 12 in the reference state as shown in FIG. 10, the controller operates the second and fourth motors 71b and 71d at this time. The second and fourth ball screws 72b and 72d are rotated in one direction. Of course, the first and third motors 71a and 71c are not operated. Then, the second and fourth moving blocks 74b and 74d coupled to the second and fourth ball screws 72b and 72d are along the lower side of the second to fourth rails 75b and 75d, respectively. Go to. At this time, although the first and third moving blocks 74a and 74c positioned in the diagonal direction with the second and fourth moving blocks 74b and 74d are fixed, the upper portions of the first and third moving blocks 74a and 74c are fixed. The first and third intersecting blocks 76a and 76c provided at the upper side may freely move upward on the first and third moving blocks 74a and 74c. Therefore, the work stage 50 can move upward (Y axis) as shown in FIG. 12 through this series of operating mechanisms.

If the work stage 50 needs to be rotated by a predetermined angle (θ-axis) in a clockwise direction as shown in FIG. 13 in the reference state as shown in FIG. Make everything work. When the first to fourth motors 71a to 71d operate, the first to fourth moving blocks 74a to 74d are moved by the operation of the first to fourth ball screws 72a to 72d that rotate in one direction. In addition, as the first to fourth intersecting blocks 76a to 76d move freely in the corresponding directions on the first to fourth moving blocks 74a to 74d, the work stage 50 is moved as shown in FIG. Can rotate a predetermined angle clockwise. The operation of FIG. 13 can be easily implemented by appropriately combining the operations of FIGS. 11 and 12, and thus a detailed description thereof will be omitted.

When the relative alignment position of the substrate with respect to the pattern roll 40 is adjusted through the movement of the work stage 50 as described above, the pattern roll 40 is rotated by the rotation unit 12a of the shaft driving unit 12, thereby allowing the surface of the substrate to be rotated. The ink is re-transferred and printed.

According to the pattern printing apparatus of this embodiment having such a structure and operation, the job change is easier than before, the structure is simple, and by applying the pattern roll 40 in which the functions of gravure and blanket roll are integrated into one, Efficient high degree of direct printing is possible.

On the other hand, in the above embodiment, the description thereof is omitted, any one of the apparatus body 10 and the work stage 50 on which the pattern roll 40 is mounted is up / down driving with respect to the other It can be provided as possible.

As described above, the present invention is not limited to the described embodiments, and various modifications and changes can be made without departing from the spirit and scope of the present invention, which will be apparent to those skilled in the art. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

10 device main body 11: pattern roll shaft
12 shaft drive portion 13 shaft clamp
20: doctor blade 30: dispenser
40: pattern roll 41: roll body
42: buffer layer 43: pattern layer
44 pattern surface layer 50 work stage

Claims (13)

A work stage on which a printing operation is performed on the substrate loaded onto the top surface;
A roll body, a buffer layer disposed on an outer surface of the roll body, and a pattern layer disposed on an outer surface of the buffer layer, and are spaced apart from the work stage to pattern ink (resist) on a substrate on the work stage. A pattern roll to make); And
And a pattern roll shaft selectively separable from the pattern roll, the pattern roll shaft being coupled to a central region of the pattern roll along a length direction of the pattern roll to form a rotation axis of the pattern roll. The method of claim 1,
The pattern roll further comprises a pattern surface layer disposed on an outer surface of the pattern layer. The method of claim 2,
The roll body is made of carbon fiber reinforced plastic (CFRP),
The buffer layer is provided with a rubber (rubber),
The pattern surface layer is a pattern printing apparatus, characterized in that the diamond coating layer. The method of claim 1,
A dispenser for applying the ink to an outer surface of the pattern roll; And
A doctor blade disposed around the dispenser and removing unnecessary ink from the ink applied to the outer surface of the pattern roll,
And the pattern roll directly patterns the ink onto the substrate. The method of claim 4, wherein
The doctor blade is a pattern printing apparatus, characterized in that to form a body on the pattern roll and the device body. The method of claim 5,
And a sensing unit provided at one side of the device body and forming a body with the doctor blade and the pattern roll, and detecting a relative alignment position of the substrate with respect to the pattern roll. Printing device. The method of claim 1,
And a shaft drive unit coupled to one end of the pattern roll shaft and driving the pattern roll shaft for rotation or movement of the pattern roll. The method of claim 7, wherein
And a shaft clamp disposed in the other end region of the pattern roll shaft and detachably clamping the exposed free end of the pattern roll shaft coupled to the shaft driving unit. The method of claim 8,
The shaft clamp is provided to be movable along the direction in which the printing operation proceeds,
The shaft clamp is a pattern printing apparatus characterized in that it comprises a plurality of clamp members for clamping the exposed free end of the pattern roll shaft while being approached or spaced apart from each other. The method of claim 1,
And a stage moving support unit coupled to a lower portion of the work stage to support the work stage to be movable. The method of claim 10,
Further comprising a support plate provided in parallel with the work stage at a spaced interval from the work stage in the lower region of the work stage,
And the stage moving support unit includes four moving support units respectively provided at four corner regions of the upper surface of the support plate while at least a portion thereof is coupled to a lower surface of the work stage. The method of claim 11,
The moving support unit,
A motor controlled by the controller;
A ball screw coupled to the motor and rotatable in a forward and reverse direction by the motor;
A moving block coupled to the ball screw and movable along the longitudinal direction of the ball screw when the ball screw rotates;
An intersecting block coupled to the moving block and freely moving in a direction crossing the moving block;
Fixed portions fixed at both ends to an upper surface of the cross-block and a lower surface of the work stage; And
And at least one rail provided on an upper surface of the support plate to guide the movement of the movable block. The method of claim 12,
The moving support unit,
A plurality of protrusions protruding upward from an upper surface of the moving block and having through holes formed therein;
A moving shaft movably coupled to the protruding portion so as to pass through the through hole, and at least a portion of which is fixed to the cross block; And
And a rotation support part provided on an opposite side of the motor with the ball screw therebetween to rotatably support the end of the ball screw.

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