KR101170894B1 - Printer - Google Patents

Abstract

A printing apparatus is disclosed. The printing apparatus of the present invention includes: a work stage disposed on a virtual film transfer line through which a film is supplied and recovered, and a printing operation on the film is performed; A printing roll disposed spaced from the work stage and applying the resist to the film on the work stage; A film supply and recovery unit having a plurality of up / down rollers provided to be movable up / down on both sides of the work stage and supporting the film; A stage moving support unit coupled to a lower portion of the work stage to support the work stage to be movable; And supplying the film for alignment work on the film with the film adsorbed on the work stage and the surrounding film area not adsorbed on the surface of the work stage being relatively looser than the film area adsorbed on the surface of the work stage. And a control unit for controlling the operation of the recovery unit and the stage moving support unit. According to the present invention, it is possible to efficiently perform a relatively high degree of alignment work on the film to the level required in the process to enable a relatively high degree of printing and high-speed printing can be improved productivity, in particular It can be applied to the printing of films or substrates required in the flat panel display industry or similar IT industries such as the touch screen, semiconductor, and solar industry.

Description

Print Device {Printer}

The present invention relates to a printing apparatus, and more particularly, it is possible to efficiently perform a relatively high degree of alignment work on the film to the level required in the process, it is possible to print a relatively high degree of high speed printing To improve productivity, and more particularly, to a printing apparatus that can be applied to the printing of films and substrates required in the flat panel display industry or similar IT industries such as the touch screen, semiconductor, and solar industries. .

Flat panel displays, such as liquid crystal displays (LCDs), plasma display panels (PDPs) and organic light emitting diodes (OLEDs), are assembled with various types of filters, such as electromagnetic interference (EMI) filters, for example, to monitor TVs or computers, or It is used as a display device of electronic products such as mobile phones, PDAs, digital cameras, and the like. The touch screen panel is installed on the display surface of the flat panel display described above, and is used to allow a user to select desired information while viewing the image display device.

As described above, a printing process is generally required for substrates for LCDs, PDPs and OLEDs, or various kinds of films attached thereto, and touch screen panels.

For example, for LCD substrates, R (Red), G (Green), and B (Blue) color resists should be printed on the surface with an appropriate arrangement structure, and for films such as EMI filters, it should be arranged like a checkerboard arrangement. The monochromatic or multicolor resist pattern with

In the former case, it is possible to consider using an electronic printing device such as an inkjet printer or a roll printer because the printing degree should be considerably high. In the latter case, a screen printer or a roll that is difficult to fix because the printing degree may be relatively low. One may consider using a roll to roll printing apparatus.

On the other hand, when using a screen printer for printing the film there is a problem of lowering the productivity in the structure has been studied how to use a roll-to-roll printing apparatus alternatively.

The roll-to-roll printing apparatus has a merit that high speed printing is possible as compared to a screen printer as a method of printing a film while drawing a film to be printed between a pair of rolls which are rotated relative to each other.

Such a roll-to-roll printing apparatus is provided with an edge position controller called an edge position controller (E.P.C). The edge position controller is a device for aligning the end of the film so that the end of the film is uniformly positioned. The edge position controller does not allow printing until the edge position controller aligns the position of the film with respect to the print position in advance. do.

However, the edge position controller (EPC), which has been used in the conventional roll-to-roll printing apparatus, is typically able to align the film only within a range of about 1 mm or up to about 0.1 mm or more, and the θ direction of the film Because alignment is virtually difficult, it is virtually difficult to match the degree of printing on films or substrates required by the flat panel display industry or similar IT industries, such as the touch screen, semiconductor and solar industries.

For these reasons, if a new concept of roll-to-roll printing method is developed that can produce a relatively high degree of printing and high-speed printing to improve productivity, the ripple effect is considerable. something to do.

An object of the present invention is to achieve a relatively high degree of alignment work for the film efficiently to the level required in the process to enable a relatively high degree of printing and high-speed printing can be improved productivity, In particular, the present invention provides a printing apparatus that can be applied to film or substrate printing required in the flat panel display industry or similar IT industries such as the touch screen, semiconductor, and solar industry.

The object is, according to the present invention, a work stage is disposed on a virtual film transfer line is supplied and recovered film is a print stage for the film is in progress; A printing roll disposed to be spaced apart from the work stage and applying a resist to a film on the work stage; A film supply and recovery unit provided with a plurality of up / down rollers provided to be movable up / down on both sides of the work stage to support the film; A stage moving support unit coupled to a lower portion of the work stage to support the work stage to be movable; And aligning the film in a state in which the film is adsorbed on the work stage and the peripheral film area not adsorbed on the surface of the work stage is relatively looser than the film area adsorbed on the surface of the work stage. It is achieved by a printing apparatus comprising a control unit for controlling the operation of the film supply and recovery unit and the stage moving support for.

The apparatus may further include a sensing unit provided at a periphery of the work stage to sense a relative alignment position of the film with respect to the printing roll, wherein the control unit is configured to detect the alignment unit for the film. The operation of the stage moving support unit may be controlled based on the signal.

The film supply and recovery unit may include: a film supply roller disposed on one side of the work stage with the work stage therebetween to supply a film to which the resist pattern is to be printed; And a film recovery roller disposed on the other side of the work stage with the work stage interposed therebetween to form the virtual film transfer line together with the film supply roller, wherein the film having the resist pattern printed thereon is recovered. Can be.

The film supply and recovery unit further includes a feeding motor provided on the imaginary film transfer line connecting the film supply roller and the film recovery roller to provide a driving force for feeding the film toward the film recovery roller. It may include.

The film supply and recovery unit may further include a plurality of guide rollers disposed on the virtual film transfer line and configured to guide the transfer of the film while applying tension to the film.

Any one of the plurality of guide rollers may be external to the feeding motor.

The control unit lowers any one or both of the plurality of up / down rollers so that the film contacts the surface of the work stage side by side during the alignment of the film so that the film is adsorbed on the surface of the work stage. The film supply and recovery unit and the stage movement in a state in which the surrounding film area that is not adsorbed on the surface of the work stage is relatively looser than the film area adsorbed on the surface of the work stage after the tension is removed. The operation of the support can be controlled.

The plurality of up / down rollers may be front up / down rollers and rear up / down rollers disposed in front and rear of the work stage, and the control unit first lowers the front up / down rollers and then The rear up / down roller may be lowered to control the film to be adsorbed on the surface of the work stage.

The control unit allows the film to be adsorbed on the surface of the work stage, and then removes the tension, feeds a predetermined amount of film with the feeding motor and advances the work stage toward the rear up / down roller to It is possible to control the operation of the film supply and recovery unit and the stage moving support in a state in which the peripheral film region not adsorbed on the surface becomes relatively looser than the film region adsorbed on the surface of the work stage.

The film supply and recovery unit includes: a supply side load cell disposed on the virtual film transfer line adjacent to the film supply roller to control the tension of the film; And a recovery side load cell disposed on the virtual film transfer line adjacent to the film recovery roller to control the tension of the film.

The film supply and recovery unit includes: a supply side dancer disposed on the virtual film transfer line adjacent to the film supply roller to control the tension of the film; And a recovery side dancer disposed on the virtual film transfer line adjacent to the film recovery roller to control the tension of the film.

The apparatus may further include a drying unit disposed at a rear side of the work stage with respect to a direction in which the film is recovered on the virtual film transfer line to dry the film having the resist pattern printed on the surface thereof.

Gravure spaced apart from the work stage, the outer surface may further include a gravure (Gravure), the printing roll is a blanket roll for transferring the resist from the gravure to re-transition to a film on the work stage (Blanket roll).

The gravure may be a gravure plate or a gravure roll.

A dispenser for applying the resist to an outer surface of the gravure; And a doctor blade disposed around the dispenser to remove unnecessary resist from the resist applied to the outer surface of the gravure.

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.

The film supply and recovery unit may include a front buffer roller disposed at one side of the work stage with the work stage interposed therebetween; And a rear buffer roller disposed on the other side of the work stage with the work stage therebetween.

The control unit may allow the film to be adsorbed onto the surface of the work stage during alignment with the film, and then remove the tension, and then raise at least one of the front buffer roller and the rear buffer roller to raise the surface of the work stage. The film supply and recovery unit and the stage moving support may be controlled in a state in which a peripheral film region that is not adsorbed on the surface becomes relatively looser than a film region adsorbed on the surface of the work stage.

The plurality of up / down rollers may be front up / down rollers and rear up / down rollers disposed in front and rear of the work stage, and the controller may include at least one of the front buffer roller and the rear buffer roller. After raising one, the work stage is advanced toward the rear up / down roller so that the peripheral film area not adsorbed on the surface of the work stage is relatively looser than the film area adsorbed on the surface of the work stage. In the operation of the film supply and recovery unit and the stage moving support can be controlled.

The control unit may first down the up / down roller so that the film contacts the surface of the work stage side by side during the alignment of the film, and then the film is adsorbed onto the surface of the work stage. And then the down / down roller is secondly down so that the peripheral film area not adsorbed on the surface of the work stage is relatively looser than the film area adsorbed on the surface of the work stage. The operation of the stage moving support unit can be controlled.

The printing roll may be a gravure and blanket roll combined pattern roll that retransmits the applied resist to a film on the work stage after the resist is applied to the outer surface.

A pattern roll holder may be provided at the center of the gravure and blanket roll combined pattern roll to form a rotation axis thereof, and one side of the pattern roll holder may move and rotate the pattern roll holder toward the work stage. Is connected, the other side of the pattern roll holder may be detachably coupled with the shaft clamp.

According to the present invention, it is possible to efficiently perform a relatively high degree of alignment work on the film to the level required in the process to enable a relatively high degree of printing and high-speed printing can be improved productivity, in particular It can be applied to the printing of films or substrates required in the flat panel display industry or similar IT industries such as the touch screen, semiconductor, and solar industry.

1 to 8 are diagrams showing the operation of the printing apparatus according to the first embodiment of the present invention step by step.
9 is a schematic perspective view of the work stage area.
10 is a schematic planar projection view of FIG. 9.
FIG. 11 is an enlarged perspective view of area A of FIG. 10.
12 is a cross-sectional view taken along line CC of FIG. 11.
13 is a partial plan view of FIG. 1.
14 is a diagram illustrating a state in which the work stage of FIG. 13 is moved along the X axis.
FIG. 15 is a diagram illustrating a state in which the work stage of FIG. 13 is moved on the Y axis.
FIG. 16 is a diagram illustrating a state in which the work stage of FIG. 13 is rotated along the θ axis.
17A to 17C are views showing part of the operation of the printing apparatus according to the second embodiment of the present invention.
18 is a structural diagram of a printing apparatus according to a third embodiment of the present invention.
19 is a structural diagram of a printing apparatus according to a fourth embodiment of the present invention.
20A is a structural diagram of a printing apparatus according to a fifth embodiment of the present invention.
FIG. 20B is a schematic structural diagram of the pattern roll shown in FIG. 20A.

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.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

For reference, the film to be described below may include a film required in the flat panel display industry or similar IT industry, for example, an electromagnetic interference (EMI) filter, a flexible touch screen panel, and the like. It will be described as simply a film without distinguishing these.

1 to 8 are diagrams showing the operation of the printing apparatus according to the first embodiment of the present invention step by step, FIG. 9 is a schematic perspective view of the work stage area, and FIG. 10 is a schematic plan view of FIG. 9. FIG. 11 is an enlarged perspective view of a region A of FIG. 10, FIG. 12 is a sectional view taken along CC of FIG. 11, FIG. 13 is a partial plan view of FIG. 1, and FIG. 14 is a work stage of FIG. 13 moving along the X axis. It is a figure which shows one state, FIG. 15 is a figure which shows the state which the work stage of FIG. 13 moved to the Y-axis, and FIG. 16 is a figure which shows the state which the work stage of FIG.

Referring to these drawings, but mainly referring to FIG. 1, the printing apparatus of this embodiment is disposed on a virtual film transfer line through which a film is supplied and recovered, and a work stage 50 for printing a film is in progress. And a printing roll 40 spaced apart from the work stage 50 to apply a resist to the film on the work stage 50 and up / down movable on both sides of the work stage 50. A film supply and recovery unit 80 having a plurality of up / down rollers 83a and 83b provided to support the film, and at least a portion thereof is coupled to the lower portion of the work stage 50 to move the work stage 50. And a sensing unit (not shown) provided around the work stage 80 to sense the relative alignment position of the film with respect to the blanket roll 40, and Align operations And a control unit (not shown) for controlling the operation of the stage moving the support 70 based on the signal detect portion, includes an exterior cabinet (1) for supporting them.

Herein, the control unit causes the film to be adsorbed to the work stage 50 so that the peripheral film area that is not adsorbed to the surface of the work stage 50 becomes relatively looser than the film area adsorbed to the surface of the work stage 50. In this state, the operation of the stage moving support unit 70 is controlled to align the film. The operation of the control unit will be described in detail later.

In addition, the printing apparatus of the present embodiment is disposed with respect to the work stage 50, the gravure (10, Gravure) that the resist is applied to the outer surface, the dispenser (30, Dispenser, for applying the resist to the outer surface of the gravure 10, 4) and a doctor blade 20 disposed around the dispenser 30 to remove unnecessary resist from the resist applied to the outer surface of the gravure 10.

At this time, in the present embodiment, the gravure 10 is applied as a gravure plate 10. The printing roll 40 described above is applied to a blanket roll 40 which transfers the resist from the gravure plate 10 and retransmits the film to the film on the work stage 50.

Hereinafter, in connection with the description of the present embodiment, as shown in FIGS. 1 to 8, the printing roll 40 includes the dispenser 30 and the doctor blade 20 as well as the gravure plate 10. The printing apparatus which is this blanket roll 40 is demonstrated. Of course, whether the gravure plate 10 is applied, and whether the blanket roll 40 of the printing roll 40 roller is optional is not an element limiting the scope of the present invention.

In the following description, for clarity, the gravure plate 10, the dispenser 30, the doctor blade 20, the blanket roll 40, the work stage 50, and the stage moving support unit 70 may be referred to without reference numerals. And it will be described in detail for each configuration in the order of the film supply and recovery unit 80.

First, the gravure plate 10 plays a role of transferring the resist to the outer surface of the blanket roll 40. Therefore, the upper surface area of the gravure plate 10 and the length of the blanket roll 40 are provided in substantially similar sizes. Since the gravure plate 10 is fixed at the corresponding position, as the blanket roll 40 is moved toward the gravure plate 10, the resist is transferred from the gravure plate 10.

Next, the dispenser 30 (see FIG. 4) serves to apply a resist to the outer surface of the gravure plate 10. The resist may be black ink, monochrome ink of a different color, or color resist.

The dispenser 30 may be provided to be movable along the longitudinal direction of the gravure plate 10, to be able to move up and down at the corresponding position, or to be foldable in one direction. When such a structure is applied, the coating efficiency of the resist can be increased, and the interference with the surrounding structure can be avoided. Of course, the scope of the present invention need not be limited thereto.

Although not shown in detail, the outer surface of the gravure plate 10 is formed with an uneven pattern substantially covered with a resist (coated). The uneven pattern at this time may be both embossed or intaglio. If it is embossed, a resist is applied to the outer surface of the protruding uneven portion 10b (see FIG. 1) and transferred to the blanket roll 40. If it is an embossed form, the resist is formed inside the recessed recessed portion 10a (see FIG. 1). Is applied and transferred to the blanket roll 40.

However, when the blanket roll 40 transfers the resist from the outer surface of the gravure plate 10 and retransmits (prints) the film to the film, the gravure plate 10 is used to maintain a uniform thickness of the resist pattern from the surface of the film. It may be advantageous that the uneven pattern formed on the outer surface of the intaglio form.

When the resist is applied to the outer surface of the gravure plate 10 by the dispenser 30, the resist should be applied only to the recesses 10a of the substantially intaglio shape as shown in the enlarged portion of FIG. However, when the dispenser 30 applies the resist to the outer surface of the gravure plate 10, it is difficult to apply the resist at a time such that the resist is selectively received only in the recess portion 10a of the substantially recessed shape.

Therefore, when the dispenser 30 applies the resist to the outer surface of the gravure plate 10, the resist is widely spread on the outer surface of the gravure plate 10 to be applied, and when the application is completed, except for the recess 10a having the intaglio shape. The resist applied to the face 10b, i.e., need not be removed, so that the resist can finally be received only in the recess 10a. To this end, a doctor blade 20 is provided in the periphery of the gravure plate 10 to remove unnecessary resist.

The doctor blade 20 includes a knife holder 21 and a knife 22 coupled to the knife holder 21. The knife holder 21 has a structure that can be easily attached and detached at a predetermined position of the doctor blade 20 in a one-touch form. The knife 22 has a length substantially similar to the length of the gravure plate 10, and is inclined with respect to the outer surface of the gravure plate 10 in a state that the tip thereof is in contact with the outer surface of the gravure plate 10, the gravure plate 10 It scratches the outer surface.

Thus, since the tip of the knife 22 is in contact with the outer surface of the gravure plate 10, when the resist is applied to the outer surface of the rotating gravure plate 10, the recess 22 of the intaglio shape by the knife 22 The resist applied to the remaining surface 10b except for the above may be naturally removed. Therefore, the resist can be finally received only in the recess 10a.

The doctor blade 20 may be provided to be movable unlike the gravure plate 10. Since the linear motor or the like may be applied to the moving structure of the doctor blade 20, illustration is omitted. Of course, since the scope of the present invention is not limited thereto, the doctor blade 20 may be fixed, and the gravure plate 10 may be movable.

Next, the blanket roll 40 receives the resist applied in the groove portion 10a (see FIG. 1) formed on the outer surface of the gravure plate 10, more specifically, on the outer surface of the gravure plate 10, and then, the work stage It is loaded onto 50 and serves to print a resist pattern on the film while moving and rotating towards the film fixed by adsorption in vacuum. As described above, in this embodiment, the printing roll 40 is applied to the blanket roll 40.

On the outer surface of the blanket roll 40, a sheet to which a resist is transferred from the gravure plate 10 is wound. Since the sheets used the number of times more than the appropriate limit has to be replaced, the blanket roll 40 is further provided with sheet replacement means (not shown) for easily replacing the sheets. The sheet replacement means serves to provide a certain tension to the sheet so that the sheet can be easily replaced, while the sheet is unfolded and stretched and wound on the outer surface of the blanket roll 40.

As described above, in the case of the printing apparatus of the present embodiment, the blanket roll 40 has to transfer the resist from the gravure plate 10 to be retransferred into the film on the work stage 50, so that the blanket roll 40 Raising and lowering driving, horizontal driving and rotating driving should be possible. To this end, as shown schematically in FIG. 1, a blanket roll driver 41 for lifting and lowering, horizontal driving and rotating driving is provided around the blanket roll 40. The lifting and lowering driving, the horizontal driving, and the rotating driving can be easily implemented by a cylinder, a linear motor, and a rotating motor, respectively, so that the detailed structure of the blanket roll driving unit 41 is not shown.

Next, the work stage 50 is a place where the printing operation with respect to a film advances by the blanket roll 40 which is moved and rotated. It can be made of stone slabs or made of metal.

9, 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 film can be adsorbed by the vacuum on the surface of the work stage 50, if the opposite air flow is made the film of the work stage 50 Slight injury may occur from the surface.

On the other hand, in the conventional roll-to-roll printing method, as described above, the so-called edge position controller (EPC) has been used to align the film before printing, but in this case, The process of aligning the film was not able to proceed efficiently to the extent required by the process. In particular, the alignment with respect to the (theta) direction of a film was difficult. Therefore, in the technical field which requires a relatively high degree, the degree of printing required could not be matched.

Thus, in the present embodiment, the film is adsorbed on the surface of the work stage 50 in a vacuum, the work stage 50 in the plane direction of the work stage 50, for example, the X-axis direction (see Fig. 14), Y By moving in the axial direction (see FIG. 15) and the θ-axis direction (see FIG. 16), a relatively high degree of alignment work is performed on the film. To this end, that is, the stage moving support part 70 is provided to align the film while moving the work stage 50 in the X-axis, Y-axis, and θ-axis directions.

In other words, 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 with reference to FIGS. 9 to 12 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 handled by a controller based on a sensor (not shown) signal.

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 blanket 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 a counterclockwise direction based on the area A of FIG. 10. 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 film adsorbed by vacuum on the work stage 50 with respect to the blanket roll 40 is distorted in the X-axis, Y-axis, and θ-axis directions is calculated, 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. 11 and 12, 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. 11 and 12, 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 film, 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. 14 to 16), thereby more efficiently performing alignment work on the film. You can do it.

Meanwhile, referring again to FIG. 1, a printing method of a roll-to-roll method of a new concept capable of relatively high degree of printing and high-speed printing to improve productivity is applied to the printing apparatus of this embodiment. To this end, a film supply and recovery unit 80 is provided.

Many of the components constituting the film supply and recovery unit 80 are provided in the form of a roll to apply a roll-to-roll printing method.

The film supply and recovery unit 80 includes a film supply roller 81 for supplying a film on which a resist pattern is to be printed, a film recovery roller 82 for recovering a film on which a resist pattern is printed on a surface, and a work stage ( 50 which is provided on both sides of the up / down movement so as to connect the front and rear up / down rollers 83a and 83b for supporting the film, and the film supply roller 81 and the film recovery roller 82. A feeding motor 84 and a plurality of guide rollers 85 are disposed on the imaginary film transfer line.

The film supply roller 81 serves to supply the film on which the resist pattern is to be printed toward the work stage 50. The film supply roller 81 is disposed on one side of the work stage 50 with the work stage 50 interposed therebetween, and a supply side load cell 86 or a supply side dancer for controlling tension of the film to be supplied around the film supply roller 81. ) Is provided. Although not necessarily the film feed roller 81 may be applied as a motor or powder brake with independent driving force.

The film recovery roller 82 is a portion where the film on which the resist pattern is printed on the surface of the work stage 50 by the blanket roll 40 is recovered. Such a film recovery roller 82 is disposed on the other side of the work stage 50, that is, on the opposite side of the film feed roller 81, with the work stage 50 interposed therebetween, to transfer the virtual film together with the film feed roller 81. Form a line. A recovery side load cell 87 or a recovery side dancer is provided around the film recovery roller 82 to impart a constant tension to the film to be conveyed for a long time. Although not necessarily, the film recovery roller 82 can be applied to a servo motor or powder clutch and motor so that the rotation angle can be adjusted step by step or easy to stop and adjust motion.

The front up / down roller 83a and the rear up / down roller 83b are disposed on a virtual film transfer line to support the film, but move up / down on both sides of the work stage 50 in particular. It is provided so that the work stage 50 and the stage moving support part 70 serve to align the film. The alignment operation of the film due to the role of the front up / down roller 83a and the rear up / down roller 83b will be dealt with in the description and operation description of the controller to be described later.

The feeding motor 84 is disposed on an imaginary film transfer line connecting the film supply roller 81 and the film recovery roller 82 to provide a driving force for transferring the film toward the film recovery roller 82. This feeding motor 84 is disposed at a suitable position between the film feed roller 81 and the work stage 50. Like the front up / down roller 83a and the rear up / down roller 83b, the roller It may have a form.

A plurality of guide rollers 85 are disposed on a virtual film transfer line connecting the film feed roller 81 and the film recovery roller 82 to guide the transfer of the film while giving tension to the film. 1, it can be seen that a large number of guide rollers 85 are provided for each position to guide the conveyance of the film while giving tension to the film. One of the plurality of guide rollers 85 (85a) is provided to be external to the feeding motor 84.

In addition to such a structure, the printing apparatus of this embodiment may be further equipped with a drying unit 60. The drying unit 60 is disposed between the work stage 50 and the film recovery roller 82 on a virtual film transfer line connecting the film supply roller 81 and the film recovery roller 82 to print a resist pattern on the surface. It serves to dry the film.

Since the drying unit 60 is not provided separately from the film supply and recovery unit 80 in this embodiment, some 85b of the plurality of guide rollers 85 are disposed in the drying unit 60 to be filmed. To guide the transfer continuously.

As a configuration other than these, the printing apparatus of the present embodiment includes a sensing unit and a control unit, which are not shown. The sensing unit is provided around the work stage 50 to detect a relative alignment position of the film with respect to the blanket roll 40. Play a role. This sensing unit is provided in the front region of the blanket roll 40 to detect the relative alignment position of the vacuum-adsorbed film on the work stage 50 with respect to the blanket roll 40, which is sufficient. Or a camera.

On the other hand, the control unit first lowers the front up / down roller 83a and then lowers the rear up / down roller 83b so that the film contacts the surface of the work stage 50 side by side during the alignment of the film. The film is adsorbed to the surface of the work stage 50 by a vacuum formed through a vacuum hole (not shown, see FIG. 9), and then, after removing the tension, a predetermined amount of film is fed by the feeding motor 84 and the work stage is removed. Advance the amount of 50 toward the rear up / down roller 83b so that the peripheral film area that is not adsorbed on the surface of the work stage 50 is relatively looser than the film area adsorbed on the surface of the work stage 50. In one state, the operation of the stage moving support unit 70 is controlled to align the film based on the signal of the sensing unit. In this case, after the alignment is completed, the film is fed except for a certain amount fed first during the next printing operation.

In other words, in the printing apparatus of this embodiment, the film is adsorbed on the surface of the work stage 50, but the peripheral film area which is not adsorbed on the surface of the work stage 50 is less than the film area adsorbed on the surface of the work stage 50. With respect to the blanket roll 40 as the work stage 50 is moved in the X-axis direction (see FIG. 14), the Y-axis direction (see FIG. 15), and the θ-axis direction (see FIG. 16) in a relatively loose state. The relative position of the film is aligned.

Since the film placed on the imaginary film conveying line connecting the film feed roller 81 and the film recovery roller 82 is pulled tightly by various rollers 83 and 85 or load cells 86 and 87, In this state, even if one region of the film is absorbed by the upper surface of the work stage 50 and the work stage 50 is moved, the alignment operation of the film is difficult to proceed. Therefore, the control unit first lowers the front up / down roller 83a and then lowers the rear up / down roller 83b so that one region of the film is adsorbed on the upper surface of the work stage 50, and then the work stage 50. By advancing a predetermined amount toward the rear up / down roller 83b so that the surrounding film area which is not adsorbed can be loosened with respect to the adsorbed film area so that the alignment operation of the film can proceed. Under these conditions, even if the work stage 50 is moved in the X-axis direction (see FIG. 14), the Y-axis direction (see FIG. 15), and the θ-axis direction (see FIG. 16), the film in the adsorbed region may be moved to the work stage 50. The position relative to the blanket roll 40 may be aligned as it is moved along.

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

1 is an initial preparation state. In this case, the front and rear up / down rollers 83a and 83b support the film while being at a position slightly spaced upward from the work stage 50. 1, the positions of the front and rear up / down rollers 83a and 83b are excessively shown for convenience.

When the print job is started in this state, the control unit first lowers the front up / down roller 83a in the direction D1 of FIG. 2A, and then lowers the rear up / down roller 83b in the direction D2 of FIG. 2B. The film areas that were then supported by the front and rear up / down rollers 83a and 83b are in parallel contact with the surface of the work stage 50. In this case, the front and rear up / down rollers 83a and 83b may be lowered at the same time.

When the film area to be printed is in contact with the surface of the work stage 50, the control unit forms an air flow through an air supply or blowout line (not shown), whereby the film that has been in contact with the surface of the work stage 50 is The surface of the work stage 50 can be fixed by suction by vacuum.

When the film is vacuum-adsorbed on the work stage 50, the controller removes the tension as shown in FIG. 3, feeds a certain amount of the film with the feeding motor 84, and moves the work stage 50 toward the rear up / down roller 83b. Advancement (see D3 in FIG. 3) causes the surrounding film area not adsorbed on the surface of the work stage 50 to be relatively looser than the film area adsorbed on the surface of the work stage 50.

Then, the operation of the stage moving support part 70 is controlled so that the work stage 50 is moved in the X-axis direction (see FIG. 14), the Y-axis direction (see FIG. 15), and the θ-axis direction (see FIG. 16). The relative position of the film relative to the blanket roll 40 is thereby aligned. Take a look at this.

For example, in the reference state as shown in FIG. 13, when the work stage 50 needs to move a predetermined distance to the right side (X axis) as shown in FIG. 14, 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. 14 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. 14 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. 15 in the reference state as shown in FIG. 13, 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 upper sides of FIG. 15 along the second to fourth rails 75b and 75d below them. 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. 15 through this series of operating mechanisms.

If the work stage 50 needs to rotate clockwise by a predetermined angle (θ axis) as shown in FIG. 16 in the reference state as shown in FIG. 13, the controller controls the first to fourth motors 71a to 71d at this time. 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. 16 may be easily implemented by appropriately combining the operations of FIGS. 14 and 15, and thus a detailed description thereof will be omitted.

Meanwhile, the alignment operation of the film is performed in the state of FIG. 3 or 4 in which the film area around the non-adsorbed layer is loosely processed. The alignment operation of the film is performed at the same time, and the dispenser 30 moves at the same time. The resist is applied to the outer surface of the substrate (see FIG. 4).

After the resist is applied to the outer surface of the gravure plate 10, the doctor blade 20 is moved toward the gravure plate 10 as shown in FIG. 5 to cause the tip of the knife 22 to have an intaglio recess 10a, FIG. 1. Unnecessary resist applied to the remaining surface 10b (see FIG. 1) except for) is removed.

When the operation of the doctor blade 20 is completed, the doctor blade 20 is returned to the initial position as shown in FIG. 6, wherein the blanket roll 40 is also moved toward the doctor blade 20. At this time, the blanket roll 40 is slightly raised and moved while not being in contact with the gravure plate 10.

Then, as shown in FIG. 7, the blanket roll 40 is lowered, moved and rotated so that the resist is transferred from the gravure plate 10 and retransmitted (printed) to the film fixed on the work stage 50. When the printing is completed, the control unit moves up and down the front and rear up / down rollers 83a and 83b to their original positions, and simultaneously operates the feeding motor 84 to print the film for the next section.

According to the printing apparatus of this embodiment having such a structure and operation, it is possible to efficiently perform a relatively high degree of alignment work on the film to the level required in the process, it is possible to print a relatively high degree of high speed printing It is possible to improve productivity, and in particular, it can be applied to the printing of films or substrates required in the flat panel display industry or similar IT industries such as the touch screen, semiconductor, and solar industry.

17A to 17C are views showing part of the operation of the printing apparatus according to the second embodiment of the present invention.

As shown in these figures, the printing apparatus of this embodiment is also similar in configuration to the majority of the printing apparatus of the first embodiment described above.

That is, the printing apparatus of the present embodiment is disposed on the virtual film transfer line through which the film is supplied and recovered, and is spaced apart from the work stage 50 and the work stage 50 to which the printing work for the film proceeds. The gravure plate 10 to which the resist is applied, the dispenser 30 for applying the resist to the outer surface of the gravure plate 10, and the resist disposed around the dispenser 30 and applied to the outer surface of the gravure plate 10. The doctor blade 20 which removes the unnecessary resist, the blanket roll 40 which transfers a resist from the gravure plate 10, and retransfers (prints) to the film on the work stage 50, and the work stage 50 A film supply and recovery unit 80 having a plurality of up / down rollers 83 which are provided to be able to move up / down on both sides thereof and support the film; A sensing unit (not shown) provided at the periphery of 80 to sense a relative alignment position of the film with respect to the blanket roll 40, and at least a portion thereof is coupled to the lower portion of the work stage 50 to form a work stage ( Controlling the operation of the film supply and retrieval unit 80 and the stage movement support unit 70 on the basis of the signal of the detection unit for aligning the film and the stage movement support unit 70 for movably supporting the film 50; A control part (not shown) and the exterior cabinet 1 which support them are included. Details of these configurations are replaced by the description of the above-described embodiments.

However, in the present embodiment, as shown in Figure 17a to 17c, a pair of up / down rollers 83 are provided on both sides of the work stage 50, these are simultaneously operated by the control unit on the film It may be different from the above-described embodiment in that it is involved in the alignment operation for the.

The operation of the control unit will be described below. FIG. 17A is an initial preparation state, in which case the pair of up / down rollers 83 support the film while being at a position slightly spaced upward from the work stage 50.

When the print job is started in this state, the control unit first downs the pair of up / down rollers 83 in the direction D4 of FIG. 17B. The film area that was supported by the pair of up / down rollers 83 then comes in contact with the surface of the work stage 50 side by side. At this time, the operation of the feeding motor 84 is stopped.

When the film area to be printed is in contact with the surface of the work stage 50, the control unit forms an air flow through an air supply or blowout line (not shown), whereby the film that has been in contact with the surface of the work stage 50 is The surface of the work stage 50 can be fixed by suction by vacuum.

When the film is vacuum-adsorbed on the work stage 50, the control unit further downs the up / down roller 83 in the second direction D5 in FIG. 17C to the film area where the adsorbed film area is adsorbed. Allow them to loosen Then, by controlling the operation of the stage moving support unit 70, the work stage 50 is moved in the X-axis direction (see FIG. 14), the Y-axis direction (see FIG. 15), and the θ-axis direction (see FIG. 16). The relative position of the film relative to the roll 40 aligns. The subsequent process is the same as the above-described embodiment.

Even as in this embodiment, a relatively high degree of alignment can be efficiently performed on the film at a level required by the process, so that a relatively high degree of printing is possible and high speed printing is possible, thereby improving productivity. In particular, the present invention can be applied to the printing of films or substrates required in the flat panel display industry or similar IT industries such as the touch screen, semiconductor, and solar industries.

18 is a structural diagram of a printing apparatus according to a third embodiment of the present invention.

In the case of this embodiment, most configurations are similar to the above-described embodiments. However, as shown in the left and right sides of Fig. 18, the printing apparatus of this embodiment is further provided with a front buffer roller 89a and a rear buffer roller 89b.

Although the front buffer roller 89a and the rear buffer roller 89b are included in the film supply roller 81 and the film recovery roller 82 for convenience in the drawing, the front buffer roller 89a and the rear buffer roller 89b are included. May be any position as long as both sides of the work stage 50.

When the front buffer roller 89a and the rear buffer roller 89b are applied as described above, the operation of the controller will be described.

The control unit first lowers the front up / down roller 83a and then lowers the rear up / down roller 83b so that the film contacts the surface of the work stage 50 side by side during the alignment of the film. Until the film is adsorbed on the surface of the work stage 50 by a vacuum formed through a vacuum hole (not shown) is the same as the above-described embodiment. However, in the present embodiment, since the front buffer roller 89a and the rear buffer roller 89b are further provided, the control unit allows the film to be adsorbed on the surface of the work stage 50, and then removes the tension before the front buffer roller. The 89a and the rear buffer roller 89b are raised, and the work stage 50 is advanced by a predetermined amount toward the rear up / down roller 83b. Then, since a margin is generated in the film, the peripheral film area that is not adsorbed on the surface of the work stage 50 may be relatively looser than the film area adsorbed on the surface of the work stage 50. In this state, the control unit controls the operation of the stage moving support unit 70 to align the film based on the signal of the sensing unit (not shown).

Even as in this embodiment, a relatively high degree of alignment can be efficiently performed on the film at a level required by the process, so that a relatively high degree of printing is possible and high speed printing is possible, thereby improving productivity. In particular, the present invention can be applied to the printing of films or substrates required in the flat panel display industry or similar IT industries such as the touch screen, semiconductor, and solar industries.

19 is a structural diagram of a printing apparatus according to a fourth embodiment of the present invention.

The above-described embodiments are all shown and described for the printing apparatus to which the gravure plate 10 is applied.

However, as shown in FIG. 19, instead of the gravure plate 10, a roll gravure roll 110 may be applied. In this case, the dispenser 130 may have a gravure roll 110. The resist may be applied to the gravure roll 110 by being disposed around the gravure roll 110, and then the blanket roll 40 may be raised toward the gravure roll 110, or the gravure roll 110 may be lowered toward the blanket roll 40. ) May transfer the resist from the gravure roll 110 and retransition into the film.

Even as in this embodiment, a relatively high degree of alignment can be efficiently performed on the film at a level required by the process, so that a relatively high degree of printing is possible and high speed printing is possible, thereby improving productivity. In particular, the present invention can be applied to the printing of films or substrates required in the flat panel display industry or similar IT industries such as the touch screen, semiconductor, and solar industries.

20A is a structural diagram of a printing apparatus according to a fifth embodiment of the present invention, and FIG. 20B is a schematic structural diagram of the pattern roll shown in FIG. 20A.

In the above-described embodiment, although divided and illustrated in the form of a gravure plate or gravure roll, as shown in FIGS. 20A and 20B, even if one pattern roll 140 in which the gravure function and the blanket roll function are combined is applied. There is no difficulty in providing the effects of the present invention.

That is, in the case of this embodiment, the printing roll 140 is applied to the gravure and blanket roll combined pattern roll 140 which re-transmits the applied resist into a film on the work stage 50 after the resist is applied to its outer surface. .

In this case, the printing apparatus is provided with only the structure of the work stage 50, the film supply and recovery unit 80, and the gravure and blanket roll combined pattern roll 140, as shown in FIG. 20A. The structure may be simpler than that. At this time, the gravure and blanket roll combined pattern roll 140 may be operated together in a set together with the doctor blade 120 and the alignment camera 122, as shown in Figure 20a. The alignment camera 122 may take the role of the above-described sensing unit (not shown).

On the other hand, as shown in Figure 20b, in order to smoothly replace the gravure and blanket roll combined pattern roll 140, the pattern roll for forming the axis of rotation in the center of the gravure and blanket roll combined pattern roll 140 Holder 141 is provided.

One side of the pattern roll holder 141 is connected to a pattern roll transfer 143 that moves and rotates the pattern roll holder 141 toward the work stage 50, and the other side of the pattern roll holder 141 is a shaft clamp 144. ) And detachably combined.

When such a structure is applied, the above-described function of the gravure and the blanket roll can be performed with one of the gravure and blanket roll combined pattern roll 140 to realize the simplification of the device, in particular the pattern roll holder 141 and Due to the organic structure of the shaft clamp 144, the gravure and blanket roll combined pattern roll 140 can be easily replaced, thereby reducing various losses such as delay in the process due to the replacement operation.

Even if the structure shown in FIGS. 20A and 20B is applied, a relatively high degree of alignment may be efficiently performed on the film at a level required in the process, so that a relatively high degree of printing is possible and high speed printing enables productivity. In particular, it can be applied to film or substrate printing required in the flat panel display industry or similar IT industries such as the touch screen, semiconductor, and solar industry.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Accordingly, such modifications or variations are intended to fall within the scope of the appended claims.

10: Gravure Roll 20: Doctor Blade
30: dispenser 40: blanket roll
50: work stage 60: drying unit
70: stage moving support 80: film supply and recovery unit
81: film feed roller 82: film recovery roller
83a, 83b: front and rear up / down roller 84: feeding motor
85: guide roller

Claims (24)

A work stage disposed on a virtual film conveying line through which a film is supplied and recovered to perform a printing operation on the film;
A printing roll disposed to be spaced apart from the work stage and applying a resist to a film on the work stage;
A film supply and recovery unit provided with a plurality of up / down rollers provided to be movable up / down on both sides of the work stage to support the film;
A stage moving support unit coupled to a lower portion of the work stage to support the work stage to be movable; And
Aligning the film in the state in which the film is adsorbed on the work stage and the surrounding film area that is not adsorbed on the surface of the work stage is relatively looser than the film area adsorbed on the surface of the work stage. And a control unit for controlling the operation of the film supply and recovery unit and the stage moving support unit. The method of claim 1,
A sensing unit provided around the work stage to sense a relative alignment position of the film with respect to the printing roll,
And the control unit controls an operation of the stage moving support unit based on a signal of the sensing unit to align the film. The method of claim 1,
The film supply and recovery unit,
A film feed roller disposed on one side of the work stage with the work stage interposed therebetween to supply a film on which the resist is to be printed; And
And a film recovery roller disposed on the other side of the work stage with the work stage interposed therebetween to form the virtual film transfer line together with the film supply roller, wherein the film having the resist printed thereon is recovered on the surface thereof. Printing apparatus. The method of claim 3,
The film supply and recovery unit further includes a feeding motor provided on the imaginary film transfer line connecting the film supply roller and the film recovery roller to provide a driving force for feeding the film toward the film recovery roller. A printing apparatus comprising a. The method of claim 4, wherein
And the film supply and recovery unit further comprises a plurality of guide rollers disposed on the virtual film transfer line and guiding the transfer of the film while applying tension to the film. The method of claim 5,
Any one of the plurality of guide rollers are in contact with the feeding motor. The method of claim 4, wherein
The control unit lowers any one or both of the plurality of up / down rollers so that the film contacts the surface of the work stage side by side during the alignment of the film so that the film is adsorbed on the surface of the work stage. The film supply and recovery unit and the stage movement in a state in which the surrounding film area that is not adsorbed on the surface of the work stage is relatively looser than the film area adsorbed on the surface of the work stage after the tension is removed. Printing apparatus characterized in that for controlling the operation of the support. The method of claim 7, wherein
The plurality of up / down rollers are front up / down rollers and rear up / down rollers disposed in front and rear of the work stage,
And the controller controls the film to be adsorbed on the surface of the work stage by first lowering the front up / down roller and then lowering the rear up / down roller. The method of claim 8,
The control unit allows the film to be adsorbed on the surface of the work stage, and then removes the tension, feeds a predetermined amount of film with the feeding motor and advances the work stage toward the rear up / down roller to A printing apparatus which controls the operation of the film supply and recovery unit and the stage moving support unit in a state in which the peripheral film region not adsorbed on the surface becomes relatively looser than the film region adsorbed on the surface of the work stage. . The method of claim 3,
The film supply and recovery unit,
A supply side load cell disposed on the virtual film transfer line adjacent to the film feed roller to control the tension of the film; And
And a recovery side load cell disposed on the imaginary film transfer line adjacent to the film recovery roller to control the tension of the film. The method of claim 3,
The film supply and recovery unit,
A supply side dancer disposed on the virtual film feed line adjacent to the film feed roller to control the tension of the film; And
And a recovery side dancer disposed on the imaginary film transfer line adjacent to the film recovery roller to control tension of the film. The method of claim 1,
And a drying unit disposed at the rear of the work stage in a direction in which the film is recovered on the virtual film transfer line to dry the film on which the resist is printed on a surface thereof. The method of claim 1,
It is further disposed with respect to the work stage, and further comprises a gravure (Gravure) is applied to the resist on the outer surface,
And the printing roll is a blanket roll which transfers the resist from the gravure and retransmits it to a film on the work stage. The method of claim 13,
The gravure printing apparatus, characterized in that the gravure plate (Gravure plate) or gravure roll (Gravure roll). The method of claim 13,
A dispenser for applying the resist to an outer surface of the gravure; And
And a doctor blade disposed around the dispenser to remove unnecessary resist from the resist applied to the outer surface of the gravure. The method of claim 1,
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 provided in 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 16,
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. 18. The method of claim 17,
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 the opposite side of the motor with the ball screw therebetween to rotatably support the end of the ball screw. The method of claim 1,
The film supply and recovery unit,
A front buffer roller disposed at one side of the work stage with the work stage therebetween; And
And a rear buffer roller disposed on the other side of the work stage with the work stage therebetween. 20. The method of claim 19,
The control unit may allow the film to be adsorbed onto the surface of the work stage during alignment with the film, and then remove the tension, and then raise at least one of the front buffer roller and the rear buffer roller to raise the surface of the work stage. And controlling the operation of the film supply and recovery unit and the stage moving support unit in a state in which a peripheral film region that is not adsorbed on the surface becomes relatively looser than a film region adsorbed on the surface of the work stage. 20. The method of claim 19,
The plurality of up / down rollers are front up / down rollers and rear up / down rollers disposed in front and rear of the work stage,
The controller may raise the at least one of the front buffer roller and the rear buffer roller, and then advance the work stage toward the rear up / down roller so that the peripheral film area that is not adsorbed on the surface of the work stage is And controlling the operation of the film supply and recovery unit and the stage moving support in a state in which the film is adsorbed relatively loosely from the film area adsorbed on the surface of the work stage. The method of claim 1,
The control unit may first down the up / down roller so that the film contacts the surface of the work stage side by side during the alignment of the film, and then the film is adsorbed onto the surface of the work stage. And then the down / down roller is secondly down so that the peripheral film area not adsorbed on the surface of the work stage is relatively looser than the film area adsorbed on the surface of the work stage. A printing apparatus characterized in that for controlling the operation of the stage moving support. The method of claim 1,
And the printing roll is a gravure and blanket roll combined pattern roll which retransmits the applied resist to a film on the work stage after the resist is applied to the outer surface. The method of claim 23, wherein
At the center of the gravure and blanket roll combined pattern roll is provided with a pattern roll holder for forming the axis of rotation thereof,
One side of the pattern roll holder is connected to the pattern roll transfer for moving and rotating the pattern roll holder toward the work stage, the other side of the pattern roll holder is a printing apparatus characterized in that the detachable coupling with the shaft clamp.

Images