KR101001941B1 - A Device for Protecting Damage to Substrate and A Method of Protecting Damage to Substrate - Google Patents

Abstract

The present invention discloses a substrate damage prevention apparatus and a damage prevention method.

The substrate damage prevention apparatus according to the present invention comprises a holder member having an upper protrusion for fixing the front portion of the substrate; And an actuator connected to the holder member, wherein the holder member fixes the front portion of the substrate while a printing operation is performed on the substrate, and the actuator releases the fixing state of the substrate when the printing operation of the substrate is completed. And to control the holder member.

Board, Damage Protection Device, Dummy Glass

Description

A Device for Protecting Damage to Substrate and A Method of Protecting Damage to Substrate}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a substrate damage preventing device and a damage preventing method for preventing damage occurring on a substrate when forming a pattern on the substrate using a printing device having a printing roll device.

More specifically, the present invention provides a substrate front portion by an adhesive force between the blanket sheet and the substrate using a holder member for fixing the front portion of the substrate when forming a pattern on the substrate using a printing apparatus having a printing roll apparatus. The present invention relates to a substrate damage preventing device and a damage prevention method for preventing damage caused to a substrate by preventing a lifting phenomenon.

Generally, several identical or different patterns on a single large glass used as a substrate for manufacturing a flat panel display (FPD) such as a plasma display panel (PDP) or a liquid crystal display panel (LCD) (E.g., electrode circuit patterns, color filters, black matrices or external electromagnetic interference (EMI) filters) are formed. A roll printing apparatus for pattern formation is used to form these patterns. Hereinafter, the workpiece of the roll printing apparatus including the glass for flat panel display (FPD) will be collectively referred to as "substrate".

The above-mentioned pattern forming roll printing apparatus uses, for example, a gravure offset-type pattern printing roll printing apparatus using a gravure roll and a blanket roll, a blanket roll, and one reverse pattern plate. Reverse off-set method, or a roll-to-plate printing method using a blanket roll and two pattern plates. Used.

1A is a schematic cross-sectional view of a conventional gravure offset-type pattern printing roll printing apparatus, and FIG. 1B schematically illustrates a side cross-sectional view of a gravure offset-type pattern printing roll printing apparatus shown in FIG. 1A. Figure is shown.

1A and 1B, the printing roll device 100 for pattern formation according to the prior art has a shape of a pattern (not shown) to be printed on the multi-faceted substrate 190 for a flat panel display (FPD), for example. A first roll (110) having a recessed recess (112) and having first and second first rotational axes (114, 114) at both side ends thereof; First and second first supporting members 116 and 116 rotatably supporting the first and second first rotational shafts 114 and 114 of the first roll 110; A first roll rotating motor (not shown) for rotating the first roll 110; An ink supply device (120) for supplying printing ink into the recesses (112) of the first roll (110); When the first roll 110 is rotated by the first roll rotating motor, the doctor blade 130 removes the ink supplied by the ink supply device 120, leaving only the intaglio shape in the recess 110. doctor blade); The first roll 110 is disposed to be in contact with and spaced apart in parallel with each other. When the first roll 110 rotates on the surface, the engraved ink formed in the recess 112 is transferred to form an embossed shape. A second roll 140 having a blanket sheet 142 formed thereon and having first and second second rotation shafts 144 and 144 at both side ends thereof; First and second second supporting members 146 and 146 rotatably supporting the first and second second rotating shafts 144 and 144 of the second roll 140; First and second linear motion guides (148,148) mounted with the first and second second supporting members (146,146), and enabling forward and backward movement of the second roll (140); A second roll rotating motor 150 for rotating the second roll 140; And a second roll actuator 160 for controlling the movement of the second roll 140.

A gravure roll is typically used for the first roll 110, a blanket roll is typically used for the second roll 140, and the ink supply device 120 is a conventional syringe. Alternatively, a nozzle-type discharge liquid supply device is used. In addition, the pattern forming apparatus supports the main frame 180 and the stage 170 on which the stage 170 supporting the printing roll apparatus 100 and the flat panel display FFP is located, in addition to the above-described printing roll apparatus 100. A stage support member 172 is further included, and an ink transfer operation for a pattern onto the surface of the multi-faceted substrate 190 is performed.

Typically, using the prior art printing roll device 100 to form a pattern on the multi-faceted substrate by offset printing, for example, the front pattern for printing the entire multi-sided substrate at once to reduce tack time and increase productivity. Printing is performed. To this end, in the case of flat panel displays, the size of the first roll 110 (gravure roll) and the second roll 140 (blanket roll) is gradually increasing as the demand for large area and multiple embrittlement is gradually increased. .

On the other hand, Figure 1C is a view showing that the lifting phenomenon that the front portion of the substrate is raised to the upper side when the blanket sheet of the second roll and the substrate is in contact.

Referring to FIG. 1C, the blanket sheet 142 of the second roll 140 used in the printing roll apparatus 100 of the related art is typically made of silicon. The silicon blanket sheet 142 has a very strong adhesion force or suction force. Thus, when the blanket sheet 142 of the second roll 140 contacts the substrate 190 to transfer printing ink onto the surface of the substrate 190, a strong adhesion between the blanket sheet 142 and the substrate 190 is achieved. As a result, a lifting phenomenon occurs in which the front portion 190a of the substrate 190 at which printing starts is lifted upward. As a result, the substrate 190 is bent and damaged or broken. Reference numeral 192 shown in Fig. 1C denotes a dummy substrate. The dummy substrate 192 allows the blanket sheet 142 of the second roll 140 to be accelerated in advance on the dummy substrate 192 and then moved at a constant speed on the surface of the substrate 190 so that a uniform amount of printing ink can be obtained. 190) to be applied on. The use of such dummy glass 192 is not necessarily used as an option.

In order to prevent the lifting of the substrate 190 generated during the printing operation as described above, a vacuum device (not shown) is typically used at the bottom of the stage 170 on which the substrate 190 is located. More specifically, a plurality of holes are formed on the surface of the stage 170, and the plurality of holes are connected to a vacuum device (eg, a vacuum pump). When the substrate 190 is positioned on the surface of the stage 170, the vacuum device firmly fixes the substrate 190 on the surface of the stage 170 through a plurality of holes.

However, even if the substrate 190 is fixed on the surface of the stage 170 by using the above-described vacuum device, the middle portion of the substrate 190 is maintained in a sufficient vacuum state, so that the phenomenon of lifting during printing is prevented. On the other hand, the edge portion of the substrate 190 is difficult to maintain a sufficient vacuum. Therefore, the front portion 190a of the substrate 190 at which printing starts is still vulnerable to the lifting phenomenon.

In addition, as described above, the size of the first roll 110 (gravure roll) and the second roll 140 should also increase according to the large area and the multi-sided embrittlement of the substrate 190. As the size of the second roll 140 increases, the contact area between the blanket sheet 142 and the substrate 190 of the second roll 140 increases, and ultimately, the adhesion between the blanket sheet 142 and the substrate 190 is also increased. Will increase. As a result, in the case of the large-area substrate 190, the adhesion between the second roll 140 and the substrate 190 becomes larger than the fixing force of the substrate 190 by the vacuum apparatus, so that the damage of the substrate 190 as described above or Breakage is a serious problem.

In particular, the thickness of the LCD (the thickness of the current commercially available LCD substrate is approximately 0.4 to 0.8mm) than that of PDP with a large thickness of the substrate (currently, the thickness of the commercially available PDP substrate is approximately 1.8 to 2.7 mm). The case is even more vulnerable to damage or breakage of the substrate.

In addition, since the price of a large area flat panel display is expensive, damage or breakage of the substrate significantly increases the production cost.

Accordingly, there is a need for a new apparatus and method for preventing damage to the substrate described above.

SUMMARY OF THE INVENTION The present invention solves the problems of the prior art described above, and when the substrate is aligned on the stage, a holder member for fixing the front portion of the substrate is prevented to lift the front portion of the substrate due to the adhesion between the blanket sheet and the substrate. The present invention provides a substrate damage preventing device and a damage preventing method for preventing damage occurring on a substrate.

According to a first aspect of the present invention, there is provided a substrate damage preventing apparatus comprising: a holder member having an upper protrusion for fixing a front portion of a substrate; And an actuator connected to the holder member, wherein the holder member fixes the front portion of the substrate while a printing operation is performed on the substrate, and the actuator releases the fixing state of the substrate when the printing operation of the substrate is completed. It is to provide a substrate damage prevention apparatus for controlling the holder member so as to.

According to a second aspect of the present invention, there is provided a substrate damage preventing apparatus comprising: a holder member having an upper protrusion for fixing a front portion of a substrate; A plurality of pushers provided below the holder member; And a plurality of actuators connected to the plurality of pushers, wherein the holder member fixes the front portion of the substrate while a printing operation is performed on the substrate, and the plurality of actuators fix the substrate when the printing operation is completed. It is to provide a substrate damage prevention apparatus for controlling the plurality of pushers to release the state.

According to a third aspect of the present invention, there is provided a substrate damage preventing apparatus, comprising: a plurality of holder members having a plurality of upper protrusions for fixing a front portion of a substrate; And a plurality of actuators connected to the plurality of holder members, wherein the plurality of actuators fix the front portion of the substrate while a printing operation is performed on the substrate, and the substrate is fixed when the printing operation of the substrate is completed. It is to provide a substrate damage prevention apparatus for controlling the plurality of holder members to release the.

According to a fourth aspect of the present invention, there is provided a method for preventing damage to a substrate, the method comprising: a) moving a substrate and a holder member relatively to fix an upper protrusion of the holder member to a front portion of the substrate; b) maintaining the upper protrusion of the front portion while the blanket sheet transfers the pattern forming ink onto the substrate; And c) when the ink transfer is completed, releasing the fixing state of the front portion from the upper protrusion, wherein the front portion is damaged on the substrate to prevent the lifting phenomenon by the upper protrusion during the transfer operation of the ink. It is to provide a prevention method.

The use of the substrate damage preventing device and the damage preventing method of the present invention achieves the following advantages.

1. Lifting of the front part of the substrate is prevented. As a result, the problem of damage or breakage of the substrate is completely prevented.

2. Costly large area flat panel display is prevented from damage or breakage, which greatly reduces the production cost.

Further advantages of the present invention can be clearly understood from the following description with reference to the accompanying drawings, in which like or similar reference numerals denote like elements.

Hereinafter, the present invention will be described with reference to embodiments and drawings of the present invention.

The present invention is characterized in that the front portion of the substrate is fixed by the holder member of the substrate damage prevention device during the printing operation on the substrate.

FIG. 2A is a view showing a plan view in which a substrate is located in front of the apparatus for preventing damage to a substrate according to the first embodiment of the present invention.

The substrate damage preventing apparatus 200 according to the first embodiment of the present invention illustrated in FIG. 2A includes a holder member 292 having an upper protrusion 294 for fixing the front portion 290a of the substrate 290; And an actuator 296 connected to the holder member 292, wherein the holder member 292 fixes the front portion 290a of the substrate 290 while a printing operation is performed on the substrate 290. When the printing operation is completed, the actuator 296 controls the holder member 292 to release the fixing state of the substrate 290.

Substrate damage prevention apparatus 200 according to an alternative embodiment of the first embodiment of the present invention shown in Figure 2a is a holder member having an upper projection 294 for fixing the front portion (290a) of the substrate 290 292; A plurality of pushers 292a and 292b provided below the holder member 292; And a plurality of actuators 296a and 296b connected to the plurality of pushers 292a and 292b, wherein the holder member 292 is in front of the substrate 290 during a printing operation on the substrate 290. The unit 290a is fixed, and the plurality of actuators 296a and 296b control the plurality of pushers 292a and 292b to release the fixing state of the substrate 290 when the printing operation is completed. do.

Hereinafter, a detailed configuration and operation of the apparatus for preventing damage to a substrate according to the first and alternative embodiments of the present invention shown in FIG. 2A will be described in detail.

FIG. 2B is a plan view showing the substrate moving to the substrate damage preventing apparatus according to the first embodiment of the present invention, and FIG. 2C shows the substrate moved and aligned with the substrate damage preventing apparatus according to the first embodiment of the present invention. One side cross-sectional view of the state, Figure 2d is a side showing the transfer of the substrate to the unloading position by a plurality of pushers and a plurality of actuators provided separately in the substrate damage prevention apparatus according to an alternative embodiment of the present invention It is a cross section.

2A to 2C, the substrate damage preventing apparatus 200 according to the first embodiment of the present invention may include a holder member having an upper protrusion 294 protruding toward the front portion 290a of the substrate 290. 292). The holder member 292 may be implemented with, for example, a dummy glass 292. The substrate 290 is transferred onto the stage 270 by a separate transfer device (not shown) (see down arrow direction indicated by 291a in FIG. 2A). Thereafter, the substrate 290 is transferred by a centering device (not shown) to the holder member 292 (direction indicated by reference numeral 293a) previously aligned with the printing reference plane 295a (see Fig. 2B). When the substrate 290 is in close contact with the holder member 292, the front portion 29a of the substrate 290 is fixed by the upper protrusion 294 of the holder member 292 (see FIG. 2C). That is, the upper protrusion 294 has a cover function of the front portion 29a of the substrate 290. The length L between the tip of the upper protrusion 294 and the printing reference plane 295a is preferably about 1 mm.

Thereafter, the blanket sheet 142 as shown in FIG. 1C contacts the substrate 290 to transfer the ink for forming a pattern onto the substrate 290. At this time, even if the blanket sheet 142 continues to rotate past the front portion 290a of the substrate 290 along the ink application direction 291, the front portion 290a of the substrate 290 is the upper portion of the holder member 292. Lifting phenomenon is prevented by the protrusion 294. Then, when the printing operation (ie ink transfer) on the substrate 290 is completed, the holder member 292 pushes the substrate 290 in the unloading position direction 293b by the actuator 296. In this case, the plurality of pushers 292a and 292b and the plurality of actuators 296a and 296b according to an alternative embodiment of the present invention shown in dashed lines in FIGS. 2A and 2B are not used. That is, in the first embodiment shown in FIG. 2C, the holder member 292 has the function of a pusher. Thereafter, the holder member 292 is returned by the actuator 296 to its original position (i.e., the position aligned with the print reference plane 295a). That is, the actuator 296 controls the forward and backward operations of the holder member 292 when the ink transfer is completed on the substrate 290. Actuator 296 may be implemented with, for example, an air cylinder. Thereafter, the substrate 290 moved to the unloading position is unloaded from the stage 270 by a transfer device (not shown) (see the up arrow direction indicated by reference numeral 291a in FIG. 2A).

Meanwhile, in the alternative embodiment of the present invention shown in FIG. 2D, after ink transfer is completed on the substrate 290, the plurality of pushers 292a and 292b are formed by the plurality of actuators 296a and 296b. 290 is pushed in the unloading position direction 293b. That is, in the alternative embodiment of FIG. 2D, the holder member 292, which is implemented with the dummy glass 292, remains stationary, so that the use of the actuator 296 is unnecessary. Thereafter, the plurality of pushers 292a and 292b are returned by the plurality of two actuators 296a and 296b to their original positions (i.e., positions aligned with the print reference plane 295a). That is, the plurality of actuators 296a and 296b controls the forward and backward operations of the plurality of pushers 292a and 292b when the ink transfer is completed on the substrate 290. The plurality of actuators 296a and 296b may be implemented by, for example, air cylinders. Thereafter, the substrate 290 moved to the unloading position is unloaded from the stage 270 by a transfer device (not shown) (see the up arrow direction indicated by reference numeral 291a in FIG. 2A). In alternative embodiments of the present invention described above, the plurality of pushers 292a, 292b and the plurality of actuators 296a, 296b are each a pair of first and second pushers 292a, 292b and a pair of firsts. And second actuators 296a and 296b, which are illustrated and described by way of example, but those skilled in the art will appreciate that the plurality of pushers 292a and 292b and the plurality of actuators 296a and 296b may be used in the size of the glass 290. Thus it will be appreciated that for example three or more pushers and actuators can be used.

2E is a plan view of the substrate damage preventing apparatus according to the first embodiment of the present invention aligned with the substrate, and FIG. 2F is a state in which the substrate damage preventing apparatus according to the first embodiment of the present invention is moved and aligned with the substrate. One side cross section of the.

2A and 2E-2F, the substrate 290 is transferred onto the stage 270 by a separate transfer device (not shown) (see down arrow direction indicated by reference numeral 291a in FIG. 2A). Thereafter, the substrate 290 is aligned with the print reference plane 295b by a centering device (not shown). Thereafter, the holder member 292 is transferred by the actuator 296 in the direction of the front portion 290a of the substrate 290 (direction indicated by reference numeral 293b) (see FIGS. 2E and 2F). When the holder member 292 is in close contact with the substrate 290, the front portion 29a of the substrate 290 is fixed by the upper protrusion 294 of the holder member 292 (see FIGS. 2E and 2G). Thereafter, the blanket sheet 142 as shown in FIG. 1C contacts the substrate 290 to transfer the ink for forming a pattern onto the substrate 290. At this time, even if the blanket sheet 142 continues to rotate past the front portion 290a of the substrate 290 along the ink application direction 291, the front portion 290a of the substrate 290 is the upper portion of the holder member 292. Lifting phenomenon is prevented by the protrusion 294. Thereafter, upon completion of the ink transfer onto the substrate 290, the holder member 292 is returned to the original position by the actuator 296. Subsequently, the substrate 290 placed in the unloading position is unloaded from the stage 270 by a transfer device (not shown) (see the up arrow direction indicated by reference numeral 291a in FIG. 2A).

As described above, the substrate damage preventing apparatus according to the first embodiment of the present invention shown in FIGS. 2E to 2F is the same as the substrate damage preventing apparatus according to the first embodiment of the present invention shown in FIGS. 2A to 2C. It has a configuration. In addition, the holder members 292 shown in FIGS. 2A-2C and 2E-2F respectively have the same function in that the front portion 290a of the substrate 290 is fixed during the printing operation. However, the holder member 292 shown in Figs. 2A to 2C returns to the original position after pushing the substrate 290 to the unloading position when the printing operation is completed, while the holder member shown in Figs. 2E to 2F is shown. 292 differs in that the printing operation is completed in that the printing operation is completed, and the substrate 290 is returned to its original position without being pushed to the unloading position.

Fig. 2G is a plan view of the substrate aligned with the substrate damage preventing apparatus according to the second embodiment of the present invention. In the second embodiment shown in Fig. 2G, the first and second holder members 292a and 292b are used instead of one holder member 292 used in the first and alternative embodiments shown in Figs. 2A to 2F. Is used.

Referring to FIG. 2G, the apparatus 200 for preventing damage to a substrate according to the second exemplary embodiment may include first and second upper protrusions 294a and 294b for fixing the front portion 290a of the substrate 290. First and second holder members 292a and 292b provided; And first and second actuators 296a and 296b connected to the first and second holder members 292a and 292b, wherein the first and second actuators 296a and 296b are formed on the substrate 290. The front and rear portions 290a of the substrate 290 are fixed while the printing operation is performed on the first and second holders to release the fixing state of the substrate 290 when the printing operation of the substrate 290 is completed. The member 292a, 292b is controlled.

Hereinafter, a detailed configuration and operation of the apparatus for preventing damage to a substrate according to the second embodiment of the present invention shown in FIG. 2G will be described in detail.

Figure 2h is a plan view of the substrate is moved and fixed to the substrate damage prevention apparatus according to a second embodiment of the present invention, Figure 2i is a state in which the substrate damage prevention apparatus according to a second embodiment of the present invention is raised to the upper stage 1 is a cross-sectional view illustrating one side of the substrate in an aligned state, and a holder member of the substrate damage preventing apparatus fixing the front portion of the substrate.

2G to 2I, the substrate damage preventing apparatus 200 according to the second embodiment of the present invention may include first and second upper protrusions 294a and 294b protruding toward the front portion 290a of the substrate 290. And first and second holder members 292a and 29b. The first and second holder members 292a, 29b may each be embodied as, for example, a pusher. In addition, in the substrate damage preventing apparatus according to the second embodiment of the present invention, the first and second holder members 292a and 292b and the first and second actuators 296a and 296b are hidden under the stage 270. It is preferably located in the state (see dotted line in FIG. 2G). The substrate 290 is transferred onto the stage 270 by a separate transfer device (not shown) (see down arrow direction indicated by reference numeral 291a in FIG. 2G). Subsequently, the substrate 290 is conveyed by the centering device (not shown) to the first and second holder members 292a and 292b (direction indicated by reference numeral 293a) previously aligned with the printing reference plane 295a. 2h). To this end, the first and second holder members 292a and 292b are raised from the bottom of the stage 270 to the top by the first and second actuators 296a and 296b in advance (see FIG. 2I). Thereafter, when the substrate 290 is in close contact with the first and second holder members 292a and 292b, the first and second actuators 296a and 296b are formed by the first and second upper protrusions 294a and 294b. The first and second holder members 292a and 292b are lowered to fix the front portion 29a of 290 (see FIG. 2I).

Thereafter, the blanket sheet 142 as shown in FIG. 1C contacts the substrate 290 to transfer the ink for forming a pattern onto the substrate 290. At this time, even if the blanket sheet 142 continues to rotate past the front portion 290a of the substrate 290 along the ink application direction 291, the front portion 290a of the substrate 290 is formed of the first and second holder members. Lifting phenomenon is prevented by the first and second upper protrusions 294a and 294b of 292a and 292b. Then, when the ink transfer is completed on the substrate 290, the first and second holder members 292a and 292b unload the substrate 290 by the first and second actuators 296a and 296b. In the direction of the substrate 290 shown in FIG. 2G). Thereafter, the first and second holder members 292a, 292b are returned to their original positions (ie, aligned with the print reference plane 295a) by the first and second actuators 296a, 296b. That is, the first and second actuators 296a and 296b control the forward and backward operations of the first and second holder members 292a and 292b when the ink transfer is completed on the substrate 290. The first and second actuators 296a and 296b may each be embodied as, for example, an air cylinder. Thereafter, the substrate 290 moved to the unloading position is unloaded from the stage 270 by a transfer device (not shown) (see the up arrow direction indicated by reference numeral 291a in FIG. 2G).

FIG. 2J is a plan view of a substrate damage prevention apparatus according to a second embodiment of the present invention moving to a substrate to fix the substrate, and FIG. It is a figure which shows one side sectional drawing of the state aligned with a board | substrate after moving to the board | substrate in the state, and the state in which the holder member of the board | substrate damage prevention apparatus fixed the front part of a board | substrate.

2G and 2J-2K, the substrate 290 is transferred onto the stage 270 by a separate transfer device (not shown) (see the down arrow direction indicated by reference numeral 291a in FIG. 2G). Thereafter, the substrate 290 is aligned with the print reference plane 295b by a centering device (not shown). Thereafter, the first and second holder members 292a and 292b are moved upward from the bottom of the stage 270 by the first and second actuators 296a and 296b and then transferred in the direction of the substrate 290 (FIG. 2K). Reference). In this case, the first and second actuators 296a and 296b may be formed by the first and second holders before the substrate 290 is aligned with the printing reference plane 295b or while the substrate 290 is aligned with the printing reference plane 295b. The members 292a and 292b may be previously raised from the lower part of the stage 270 to the upper part. Thereafter, when the substrate 290 is in close contact with the first and second holder members 292a and 292b, the first and second actuators 296a and 296b are formed by the first and second upper protrusions 294a and 294b. The first and second holder members 292a and 292b are lowered to fix the front portion 29a of 290 (see FIG. 2K).

Thereafter, the blanket sheet 142 as shown in FIG. 1C contacts the substrate 290 to transfer the ink for forming a pattern onto the substrate 290. At this time, even if the blanket sheet 142 continues to rotate past the front portion 290a of the substrate 290 along the ink application direction 291, the front portion 290a of the substrate 290 is formed of the first and second holder members. Lifting phenomenon is prevented by the first and second upper protrusions 294a and 294b of 292a and 292b. Then, when the ink transfer on the substrate 290 is completed, the first and second holder members 292a and 292b are moved to their original positions by the first and second actuators 296a and 296b (ie, shown in FIG. 2G). To the printed reference plane 295a). Thereafter, the substrate 290 moved to the unloading position is unloaded from the stage 270 by a transfer device (not shown) (see the up arrow direction indicated by reference numeral 291a in FIG. 2G).

In the second embodiment of the present invention shown in FIGS. 2G-2K described above, two holder members 292a, 292b and two actuators 296a, 296b are exemplarily shown and described as being used. It will be appreciated that, depending on the size of the substrate 290, for example, three or more holder members and actuators may be used.

3 is a view showing an alternative embodiment of the substrate damage prevention apparatus according to the second embodiment of the present invention shown in Figures 2g to 2k. It should be noted that the alternative embodiment of FIG. 3 shows only one holder member and one actuator for convenience of description.

Referring to FIG. 3, the substrate damage preventing apparatus 200 according to an alternative embodiment of the present invention may include first and second upper protrusions 394a and 394b for fixing the front portion 390a of the substrate 390. First and second holder members 394a and 394b provided; First and second support members 392a and 392b rotatably supporting the first and second holder members 394a and 394b; And first and second actuators 396a and 396b connected to the first and second holder members 394a and 394b and the first and second support members 392a and 392b, respectively. The first and second holder members 394a and 394b are rotatably fixed to the first and second support members 392a and 392b by the first and second pivots 394a and 394b. The first and second actuators 396a and 396b control the vertical movement and the forward and backward operations of the first and second support members 392a and 392b using the first and second connection members 397a and 397b. In addition, the first and second actuators 396a and 396b control the rotation of the first and second holder members 394a and 394b using the third and fourth connection members 397c and 397d. That is, the first and second actuators 396a and 396b may fix the substrate 290 during the printing operation and release the fixing state of the substrate 290 when the printing operation is completed. 394a and 394b are controlled in a rotational manner.

4 is a flowchart of the substrate damage prevention method of the present invention.

Referring to FIG. 4 along with FIGS. 1C and 2A to 2K, a method 400 of preventing damage to a substrate according to the present invention includes a) relatively moving the substrate 290 and the holder member 292 to the holder member 292. Fixing the front portion 290a of the substrate 290 by the upper protrusion 294 provided in the upper surface of the substrate 290; b) maintaining (420) the upper protrusion (294) of the front portion (290a) while the blanket sheet (142) transfers the pattern forming ink onto the substrate (290); And c) when the ink transfer is completed, 430 releasing the fixing state of the front portion 290a from the upper protrusion 294, wherein the front portion 290a is configured to transfer the ink. It is characterized in that the lifting phenomenon is prevented by the upper protrusion 294 during the operation.

In step a) of the substrate damage prevention method 400 according to the present invention described above, the relative movement of the substrate 290 and the holder member 292 is 1) the holder member 292 of the printing reference plane (Figs. 2A and 2H) The substrate 290 in the direction of the holder member 292 using a centering device (not shown), or 2) the substrate 290 is printed reference plane (FIGS. 2A and 2G). In the case of pre-aligned with reference numeral 295b refers to the movement of the holder member 292 in the direction of the substrate 290 using the actuator 296. That is, the relative movement of the substrate 290 and the holder member 292 according to the first embodiment of the present invention is not included when the holder member 292 and the substrate 290 move toward each other at the same time.

In the substrate damage prevention method 400 according to the present invention shown in FIG. 4, the substrate 290 and the holder member 292 according to the first and alternative embodiments of the present invention shown in FIGS. 2A to 2F are replaced. The substrate damage prevention apparatus to be used is exemplarily described. However, those skilled in the art will appreciate that the substrate damage prevention method 400 of the present invention uses the second embodiment substrate 290 and the first and second holder members 292a and 292b of the present invention shown in Figs. 2G-2K. The same applies to the substrate damage preventing apparatus 200 and the substrate damage preventing apparatus 300 using the substrate 390 and the first and second holder members 394c and 394d according to the alternative embodiment shown in FIG. 3. I can understand enough.

As described above, when the substrate damage preventing device and the damage preventing method of the present invention are used, the lifting phenomenon of the front portion 290a of the substrate 290 may be prevented, thereby preventing damage or destruction of the substrate 290.

The substrate damage preventing device and the damage preventing method of the present invention described above exemplarily illustrate the case of the printing operation of the substrate using the gravure offset type pattern printing roll printing device, but the present invention is not limited thereto. That is, the substrate damage preventing apparatus and the damage preventing method of the present invention can be equally applied to the printing operation of a substrate using a reverse offset roll printing apparatus or a plate-to-plate printing roll printing apparatus. It is self-evident.

Various modifications may be made by those skilled in the art without departing from the spirit and scope of the invention as defined by the following claims. It is not. Therefore, the scope of the present invention should not be limited by the above-described exemplary embodiments, but should be defined only in accordance with the following claims and their equivalents.

Fig. 1A is a schematic cross-sectional view of a conventional roll gravure offset printing apparatus for pattern formation.

FIG. 1B is a schematic side cross-sectional view of the roll printing apparatus for forming a pattern of a gravure offset method shown in FIG. 1A.

FIG. 1C is a view showing that a lifting phenomenon occurs in which the front portion of the substrate is lifted upward when the blanket sheet of the second roll contacts the substrate.

FIG. 2A is a view showing a plan view in which a substrate is located in front of the apparatus for preventing damage to a substrate according to the first embodiment of the present invention.

FIG. 2B is a plan view showing that the substrate moves to the substrate damage preventing apparatus according to the first embodiment of the present invention.

FIG. 2C is a side cross-sectional view of the substrate being moved and aligned with the substrate damage preventing apparatus according to the first embodiment of the present invention. FIG.

FIG. 2D is a cross-sectional side view illustrating the transfer of a substrate to an unloading position by a plurality of pushers and a plurality of actuators provided separately in a substrate damage preventing apparatus according to an alternative embodiment of the present invention.

2E is a plan view of the substrate damage preventing apparatus according to the first embodiment of the present invention aligned with the substrate.

2F is a cross-sectional side view of the substrate damage preventing apparatus according to the first embodiment of the present invention being moved and aligned with the substrate.

Fig. 2G is a plan view of the substrate aligned with the substrate damage preventing apparatus according to the second embodiment of the present invention.

2H is a plan view of the substrate in a fixed state by moving to a substrate damage preventing apparatus according to a second embodiment of the present invention.

2I is a cross-sectional view of one side of a state in which the substrates are aligned while the substrate damage prevention apparatus according to the second embodiment of the present invention is raised above the stage, and the holder member of the substrate damage prevention apparatus fixes the front portion of the substrate, respectively. One drawing.

2J is a plan view of a substrate damage preventing apparatus according to a second embodiment of the present invention, moving to a substrate to fix the substrate.

2K illustrates a state in which the substrate damage preventing apparatus according to the second embodiment of the present invention is aligned with the substrate after moving in the direction of the substrate in a state where the substrate damage preventing apparatus is raised above the stage, and the holder member of the substrate damage preventing apparatus fixes the front portion of the substrate. It is a figure which shows one side cross section.

3 is a view showing an alternative embodiment of the substrate damage prevention apparatus according to the second embodiment of the present invention shown in Figures 2g to 2k.

4 is a flowchart of a substrate damage prevention method according to the present invention.

Claims (14)

In the substrate damage prevention device, A holder member having an upper protrusion for fixing the front portion of the substrate; And An actuator connected to the holder member, The holder member fixes the front portion of the substrate while a printing operation is performed on the substrate, and the actuator controls the holder member to release the fixing state of the substrate when the printing operation is completed. Substrate damage prevention device. The apparatus of claim 1, wherein a length L of the upper protrusion is 1 mm. The method of claim 1, The holder member is implemented as a dummy glass, The actuator is implemented by an air cylinder Substrate damage prevention device. The method according to any one of claims 1 to 3, When the holder member is aligned in advance with the printing reference plane, the substrate is transferred in the direction of the holder member so that the front part is fixed by the upper protrusion, When the printing operation is completed, the holder member is pushed back to the unloading position direction by the actuator to return to the original position. Substrate damage prevention device. The method according to any one of claims 1 to 3, When the substrate is aligned in advance with the printing reference plane, the holder member is transferred in the direction of the substrate by the actuator so that the front portion is fixed by the upper protrusion, When the printing operation is completed, the holder member is returned to its original position by the actuator. Substrate damage prevention device. In the substrate damage prevention device, A holder member having an upper protrusion for fixing the front portion of the substrate; A plurality of pushers provided below the holder member; And A plurality of actuators connected to the plurality of pushers Including, The holder member fixes the front portion of the substrate while the printing operation is performed on the substrate, and the plurality of actuators control the plurality of pushers to release the fixing state of the substrate when the printing operation is completed. Substrate damage prevention device. In the substrate damage prevention device, A plurality of holder members having a plurality of upper protrusions for fixing the front portion of the substrate; And A plurality of actuators connected to the plurality of holder members, The plurality of actuators may control the plurality of holder members to fix the front portion of the substrate during the printing operation on the substrate, and to release the fixing state of the substrate when the printing operation of the substrate is completed. Substrate damage prevention device. The apparatus of claim 7, wherein each of the plurality of upper protrusions has a length L of 1 mm. The method of claim 7, wherein The plurality of holder members are each implemented as a pusher (pusher), The plurality of actuators are each implemented with an air cylinder Substrate damage prevention device. The method of claim 7, wherein The substrate damage preventing apparatus further includes a plurality of support members rotatably supporting the plurality of holder members, The plurality of holder members and the plurality of support members are each connected to the plurality of actuators, The plurality of actuators control the vertical movement and the forward and backward operations of the plurality of support members, and the rotational control of the fixing operation and the release operation of the plurality of actuators. Substrate damage prevention device. The method according to any one of claims 7 to 10, When the plurality of holder members are aligned in advance with the printing reference plane, the substrate is transferred in the direction of the plurality of holder members so that the front part is fixed by the plurality of upper protrusions, When the printing operation is completed, the plurality of holder members are pushed back to the unloading position direction by the plurality of actuators and then returned to their original positions. Substrate damage prevention device. The method according to any one of claims 7 to 10, When the substrate is aligned in advance with the printing reference plane, the plurality of holder members are transferred in the direction of the substrate by the plurality of actuators so that the front portion is fixed by the plurality of upper protrusions, When the printing operation is completed, the plurality of holder members are returned to their original positions by the plurality of actuators. Substrate damage prevention device. In the substrate damage prevention method, a) moving the substrate and the holder member relatively to fix the front portion of the substrate to an upper protrusion provided on the holder member; b) maintaining the upper protrusion of the front portion while the blanket sheet transfers the pattern forming ink onto the substrate; And c) when the ink transfer is completed, releasing the fixing of the front portion from the upper protrusion Including, The front portion is prevented from being lifted by the upper protrusion during the transfer operation of the ink. How to avoid substrate damage. The method of claim 13, The relative movement of the substrate and the holder member is such that the substrate is moved in the direction of the holder member when the holder member is pre-aligned with the printing reference plane or the holder member is moved when the substrate is pre-aligned with the printing reference plane. Is made by moving in the direction of How to avoid substrate damage.

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