KR101328159B1 - Control apparatus and method for coating and transferring of glass panel - Google Patents

Abstract

The control apparatus for coating and transporting the substrate of the present invention includes a plurality of transporters each installed and transported in a first transport device located at a front end of a coating device for coating a plurality of substrates and a second transport device located at a rear end of the coating device. A plurality of sensors each sensing a substrate; A controller configured to generate a substrate alignment signal when receiving a substrate detection signal detected and transmitted by the sensor; A stopper for temporarily stopping a plurality of substrates conveyed by the first conveying apparatus or the second conveying apparatus under control of the controller; A servo motor driven by the control of the controller; And a plurality of substrates conveyed by the first conveying apparatus or the second conveying apparatus are operated by driving of the servomotor in a state where the plurality of substrates are temporarily stopped by the stopper to align the substrates by approaching from both sides of each substrate. And a sorter. According to the present invention, after the substrate is transferred by the transfer apparatus and coated in the coating apparatus, the speed in each process section is controlled according to the tact time until the coated substrate is transferred to the next process by the transfer apparatus. Thus, buffering can be performed normally and the substrate can be properly aligned before and after coating, thereby significantly reducing failure and maximizing product production efficiency.

Description

CONTROL APPARATUS AND METHOD FOR COATING AND TRANSFERRING OF GLASS PANEL}

The present invention relates to a control apparatus and method for coating and transferring a substrate, and more particularly, after the substrate is transferred by the transfer apparatus and coated in the coating apparatus, until the coated substrate is transferred to the next process by the transfer apparatus. The present invention relates to a control device and a method for coating and transferring a substrate to provide a buffering function by controlling a speed in each process section according to a tact time of the substrate, and to correctly align the substrate before and after coating. .

In the existing production process, the focus is on the enlargement of the size of the wafer and the substrate of the semiconductor, and most of the substrate production processes use a process of processing one wafer or substrate.

However, as the circuit pattern has become smaller, especially in the semiconductor industry, the pattern forming industry has been increasingly used to form devices such as LCDs, OLEDs, LEDs, and PCBs, and to form battery patterns such as solar cells. . In addition, in recent years, as the market of smartphones and notepads is gradually expanded, the touch screen display industry is rapidly expanding, and there is a shortage of supply in a small size of the substrate. Accordingly, a variety of equipment has been developed to improve the production efficiency of the substrate.

In order to increase the production efficiency of the substrate production process, work for each process must be performed in advance. For example, in order to proceed with the exposure process, the coating liquid must be applied to the surface of the substrate in advance to make the exposure possible.

However, in the conventional substrate production process, the buffering function for controlling the speed in each process section according to the tact time is not normally performed, or the substrate is not aligned correctly in the process before and after coating, so that the substrate production process Problems occurred or there was a problem that the production efficiency of the substrate production process is lowered.

The present invention was devised to solve such a problem, and in the tact time until the coated substrate is transferred to the next process by the transfer apparatus after the substrate is transferred by the transfer apparatus and coated in the coating apparatus. Accordingly, an object of the present invention is to provide a buffering function by controlling the speed in each process section, and to provide a control apparatus and method for coating and transporting a substrate so that the substrate can be aligned correctly before and after coating.

According to one aspect of the control device for coating and transporting the substrate according to the present invention for achieving the above object, the first transfer device and the rear end of the coating apparatus located in front of the coating apparatus for coating a plurality of substrates A plurality of sensors each sensing a plurality of substrates installed and transported in the second transfer apparatus; A controller configured to generate a substrate alignment signal when receiving a substrate detection signal detected and transmitted by the sensor; A stopper for temporarily stopping a plurality of substrates conveyed by the first conveying apparatus or the second conveying apparatus under control of the controller; A servo motor driven by the control of the controller; And a plurality of substrates conveyed by the first conveying apparatus or the second conveying apparatus are operated by driving of the servomotor in a state where the plurality of substrates are temporarily stopped by the stopper to align the substrates by approaching from both sides of each substrate. And a sorter.

According to one aspect of the control method for coating and transporting the substrate according to the present invention for achieving the above object, (a) a plurality of sensors and the first transfer device located in front of the coating apparatus for coating a plurality of substrates; Sensing a plurality of substrates each being transported by a second transport device located at a rear end of the coating device; (b) generating a substrate alignment signal when the controller receives a substrate detection signal detected and transmitted by the sensor; (c) the stopper temporarily stopping a plurality of substrates conveyed by the first conveying apparatus or the second conveying apparatus under the control of the controller; (d) driving the servo motor under control of the controller; And (e) a plurality of substrates on which the aligner is transported by the first conveying device or the second conveying device are operated by driving of the servomotor in a state where the stopper is temporarily stopped by the stopper, thereby operating from both directions of each substrate. Moving to align the substrate.

According to the present invention, after the substrate is transferred by the transfer apparatus and coated in the coating apparatus, the speed in each process section is controlled according to the tact time until the coated substrate is transferred to the next process by the transfer apparatus. Thus, buffering can be performed normally and the substrate can be properly aligned before and after coating, thereby significantly reducing failure and maximizing product production efficiency.

1 is a perspective view of a control apparatus for coating and transporting a plurality of substrate rollers according to an embodiment of the present invention.
FIG. 2 is a plan view of a control device for coating and transporting a plurality of substrate rollers in FIG.
3 is an enlarged view illustrating a portion A enlarged in FIG. 2;
Figure 4 is a perspective view of a plurality of substrate roller coating apparatus in one embodiment of the present invention.
5 is a front view of the plurality of substrate roller coating apparatus shown in FIG.
6 is a cross-sectional view of the CC shown in FIG.
FIG. 7 is an enlarged view of A shown in FIG. 4. FIG.
8 is a cross-sectional view of the BB shown in FIG.
9 is a perspective view of a plurality of substrate roller coating apparatus according to an embodiment of the present invention.
10 is a front view of the plurality of substrate roller coating apparatus shown in FIG.
FIG. 11 is a cross-sectional view of the CC shown in FIG. 10. FIG.
12 is a side view of the plurality of substrate roller coating apparatus shown in FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined. Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

1 is a perspective view of a control apparatus for coating and conveying a plurality of substrate rollers according to an embodiment of the present invention, FIG. 2 is a plan view of a control apparatus for coating and conveying a plurality of substrate rollers in FIG. 1, and FIG. 2 is an enlarged view of a portion A enlarged.

As shown, the control apparatus for coating and transporting the substrate roller of the present invention includes a first transfer device 12 for transferring a large number of substrates, a coater 20 for coating the plurality of substrates, and And a second transfer device 14 for transferring the plurality of substrates coated by the coater 20 to the next process.

The first transfer device 12 located in front of the coating machine 20 includes a plurality of substrate detection sensors 250 for sensing each of a plurality of substrates transferred when the substrate is transferred through the first transfer device 12, and substrate detection. A control unit (not shown) for generating a substrate alignment signal when receiving a substrate detection signal sensed and transmitted by the sensor 250 and a predetermined number of stops for each of the plurality of substrates by pneumatic upon receiving the substrate alignment signal from the controller. A plurality of stoppers 270 rising up by a height of the servo motor, a servo motor driven by a control signal of a controller, and a plurality of substrates respectively stopped by the plurality of stoppers 270. An aligner 270 is arranged to move from both sides of each substrate by driving to align each substrate.

In the second transfer device 14 located at the rear of the coater 20, when a plurality of substrates coated by the coater 20 exits the coater 20, each of the plurality of substrates on which the coated coating proceeds is detected. A plurality of substrate detection sensors 250 are disposed. A plurality of stoppers 270 are disposed at the rear end of the plurality of substrate detection sensors 250 in a one-to-one correspondence with the plurality of substrate detection sensors 250. The plurality of stoppers 270 serves to pause the plurality of substrates for leveling the coating liquid applied to the surface of each of the plurality of substrates coated by the coater 20.

After the leveling period for the leveling of the coating liquid applied to the surface of each of the plurality of substrates coated by the coater 20, the plurality of leveled substrates are sensed to transfer the plurality of leveled substrates to the next process. A plurality of substrate detection sensors 250, a control unit (not shown) for generating a substrate alignment signal when receiving a substrate detection signal detected and transmitted by the substrate detection sensor 250, and when receiving the substrate alignment signal from the control unit A plurality of stoppers 270 are raised up by a predetermined height to stop each of the plurality of substrates by pneumatic pressure, a servo motor (not shown) driven by a control signal of a controller, and a plurality of substrates are a plurality of stoppers. 270 move from both sides of each substrate by driving the servomotor in the stopped state, respectively. The aligner 270 to align the substrate is disposed.

The controller not only controls the plurality of substrates so that the substrates can be correctly aligned before and after the coating of the coater 20, and also after the substrates are transferred by the first transfer device 12 and coated on the coater 20. According to the tact time until the coated substrate is transferred to the next process by the second transfer device 14, the speed is controlled in each process section so that buffering can be normally performed.

Hereinafter, a method of operating by controlling a controller for coating and transporting a plurality of substrate rollers of the present invention having the configuration as described above will be described.

First, a plurality of substrates are introduced into the first conveying apparatus 12 located at the front end of the coating machine 20 and conveyed. A plurality of substrates transferred through the first transfer device 12 are respectively sensed by a plurality of substrate detection sensors 250. The substrate detection signals respectively detected by the plurality of substrate detection sensors 250 are transmitted to the controller. The controller generates a substrate alignment signal when receiving the substrate detection signals from the plurality of substrate detection sensors 250. The plurality of stoppers 270 that receive the substrate alignment signal from the control unit are lifted up by a predetermined height to respectively stop the plurality of substrates by pneumatic pressure. Subsequently, the servo motor is driven by the control signal of the controller, and the aligner 270 is driven from both sides of each substrate in the state where the plurality of substrates are respectively stopped by the plurality of stoppers 270 by the drive of the servo motor. Move to align each substrate.

Subsequently, a plurality of substrates on which the primary alignment is completed is introduced into the coater 20, and the coating proceeds out. A plurality of substrates exiting the coater 20 are each detected by a plurality of substrate detection sensors 250, and a plurality of substrates are coated by a plurality of stoppers 270 disposed at the rear of the plurality of substrate detection sensors 250. The transfer of the plurality of substrates is temporarily stopped for the leveling of the coating liquid applied to the surfaces of each of the two substrates.

Subsequently, the plurality of substrates which have been leveled through the leveling section are respectively sensed by the plurality of substrate detection sensors 250. The substrate detection signals respectively detected by the plurality of substrate detection sensors 250 are transmitted to the controller. The controller generates a substrate alignment signal when receiving the substrate detection signals from the plurality of substrate detection sensors 250. The plurality of stoppers 270 that receive the substrate alignment signal from the control unit are lifted up by a predetermined height to respectively stop the plurality of substrates by pneumatic pressure. Subsequently, the servo motor is driven by the control signal of the controller, and the aligner 270 is driven from both sides of each substrate in the state where the plurality of substrates are respectively stopped by the plurality of stoppers 270 by the drive of the servo motor. Move to align each substrate. This secondary alignment proceeds to ensure that the multiple substrates are correctly loaded when transferred to the next process.

In the transfer and coating of the plurality of substrates, the plurality of substrates are transferred by the first transfer device 12 and coated on the coater 20, and then the coated substrates are transferred to the next process by the second transfer device 14. According to the tact time until the speed is controlled in each process section, buffering is normally performed.

Figure 4 is a perspective view of a plurality of substrate roller coating apparatus in one embodiment of the present invention, Figure 5 is a front view of the plurality of substrate roller coating apparatus shown in Figure 4, Figure 6 is a cross-sectional view of C-C shown in FIG.

Referring to the drawings, the apparatus for roller coating a plurality of substrates according to the present invention, the transfer device 10 for transporting the substrate and the coating liquid to the coating machine 20 and the coating machine 20 for coating the substrate dropping the coating liquid The injection member 40 for injecting the coating liquid into the applicator 30 and the applicator 30 and the support member 50 which collects the coating liquid falling from the coating machine 30 into one place and the odor generated from the coating liquid are external. Vent exhaust port 60 is discharged to the.

The conveying apparatus 10 is fixed to the floor of the workplace and conveys the substrate. The conveying apparatus 10 includes a plurality of conveying rollers 110 and an alignment device (not shown) for aligning a plurality of substrates.

The transfer apparatus 10 receives the substrate and transfers it in one direction. In the conveying apparatus 10, a plurality of conveying rollers 110 are arranged at regular intervals. The feed roller 110 rotates clockwise. The transfer apparatus 10 includes a first transfer apparatus 12 for inputting a substrate to the coating machine 20 and a second transfer apparatus 14 for taking over and discharging the coated substrate.

The first transfer apparatus 12 arranges the substrate transferred in the previous process and transfers the substrate to the coater 20. The first transfer device 12 is arranged with an alignment device (not shown) for accurate coating of the substrate. The alignment device preferably aligns multiple substrates simultaneously.

The second transfer device 14 transfers the coated substrate to the next process. In some cases, the coated substrate may be aligned and discharged for rapid progress of the next process.

The coater 20 applies the coating liquid to the surface of the plurality of substrates transferred from the conveying apparatus 10. The coating machine 20 is a support roller 22 for taking over and supporting a substrate in the transfer roller 110, and a coating roller 24 for contacting and applying the substrate to the substrate and a doctor roller 26 for maintaining a constant coating liquid on the coating roller 24. ).

The supporting roller 22 takes over and feeds the substrate fed from the first transfer device 12. The support roller 22 rotates in the same direction as the feed roller 110. The supporting rollers 22 are arranged to be in close contact with each other so that the substrate does not fall from the transfer roller 110. The support roller 22 is disposed at the same height as the feed roller 110 so as not to be separated due to the impact during the movement of the substrate. The support roller 22 is disposed between the first conveying device 12 and the second conveying device 14. The support roller 22 is disposed at the same height as the feed roller in order to minimize the impact generated when the substrate is taken over by the first feed device 12.

The coating roller 24 applies a coating liquid to the surface of the substrate. The coating roller 24 is disposed spaced apart from the support roller 22 by a predetermined distance. The coating roller 24 applies a coating liquid to the surface of the substrate transferred from the feed roller 110 to the support roller 22.

 The coating roller 24 contacts the substrate when the substrate is transferred to the support roller 22 in the transfer roller 110 to form an application layer. At this time, the coating roller 24 is preferably to form a coating layer by applying a coating liquid to the substrate surface. The coating roller 24 rotates in the opposite direction to the supporting roller 22. This is to keep the flow of the substrate smoothly. Both ends of the coating roller 24 is preferably formed with a groove in which the coating liquid falls. The coating roller 24 maintains a constant thickness of the coating liquid due to rotation. That is, in the coating roller 24, when the coating liquid is accumulated at a predetermined thickness or more, the coating liquid moves in the longitudinal direction of the coating roller 24 by the rotational force. The coating roller 24 maintains a certain thickness due to rotation, and when the coating roller 24 has a predetermined thickness or more, the coating liquid is pushed out at both ends to drop the coating liquid using a groove. At this time, the falling coating liquid is collected in the pedestal.

The doctor roller 26 keeps the coating liquid at a constant thickness. The doctor roller 26 is spaced apart from the coating roller 24 by a predetermined distance. The doctor roller 26 is disposed at the upper end of the feed roller 110. The doctor roller 26 rotates in the opposite direction to the coating roller 24.

FIG. 7 is an enlarged view of A shown in FIG. 4. Referring to the drawings, the applicator 30 drops the coating liquid on the coater 20. The applicator 30 includes a nozzle 32 for injecting the coating liquid into the doctor roller 26 and a driving part 34 which linearly moves by the length of the doctor roller 26 so as to uniformly inject the coating liquid into the doctor roller 26. ) And an injection member 36 for injecting a coating liquid (chemical: N-Type, P-Type, etc.) into the nozzle 32.

The nozzle 32 drops a certain amount of coating liquid onto the doctor roller 26. A plurality of nozzles 32 are arranged to receive the coating liquid from the injection member 36. The nozzle 32 is disposed in the vicinity of the contact between the coating roller 24 and the doctor roller 26. The nozzle 32 drops the coating liquid into drops at a predetermined interval where the coating roller 24 and the doctor roller 26 are disposed. This is not intended to limit the injection method of the nozzle 32, and in some cases, a method of continuously injecting a coating liquid may be used. It is preferable that a plurality of nozzles 32 be arranged. A plurality of nozzles 32 are disposed to enable injection of a coating solution for each process. For example, in the case of a process using chemicals such as N-Type and P-Type in the process liquid, a plurality of injection members supplied to the nozzle are disposed. N-Type (Nega-PR) refers to the type of chemicals in which the lighted part is formed firmly. P-Type (Posi-PR) refers to the chemicals in which the part of the lighted part disappears. Each of the injection members 40 supplied to the nozzles 32 are provided so as not to mix with each other.

The nozzle 32 supplies chemicals for cleaning the coating roller 24 and the doctor roller 26 as well as the coating liquid used in the process. Because of this, there is no need to replace the chemical to clean the coating roller 24 and the doctor roller 26. In addition, if there is only one injection member when the chemical is replaced, the coating roller is discarded at the beginning of supply. The problem of stabilizing (24) and the doctor roller (26) was also solved.

The drive part 34 makes a linear motion within the length range of the doctor roller 26. The driving unit 34 is preferably disposed at the upper end of the doctor roller 26. The drive unit 34 preferably uses a linear guide to minimize vibration during linear motion. This is not intended to limit the drive 34, and any product capable of linear motion may be used. The driving unit 34 is spaced a predetermined distance to fix the nozzle (32). The driving unit 34 uses the bracket 310 to arrange the nozzle 32 in the vicinity of the contact between the coating roller 24 and the doctor roller 26. The driving unit 34 fixes the injection member for injecting the coating liquid into the nozzle 32.

The driving part 34 is linearly spaced apart by a predetermined distance along the longitudinal direction of the doctor roller 26. This is to allow the coating liquid falling from the nozzle 32 to fall off the coating liquid at regular intervals on the coating roller 24 and the doctor roller 26 while having a predetermined interval.

The injection member 40 transfers the coating liquid to the nozzle 32 while storing the plurality of coating liquids. The injection member 40 stores a plurality of coating liquids separately and transfers the coating liquid to the nozzle 32. At this time, the injection member 40 is disposed in the connecting pipe (not shown) which is supplied to each of the plurality of nozzles 32 each coating liquid separately. It is preferable to use a Teflon hose as the connector. This is not intended to limit the material of the connector.

The injection member 40 preferably transfers the coating liquid to the nozzle 32 hydraulically by using a connecting pipe. The injection member 40 injects each different coating liquid into the plurality of nozzles 32. This solves a problem in that the existing coating liquid and the newly added coating liquid are not mixed with each other and do not generate an application layer on the surface of the substrate. In addition, the problem that the production efficiency generated during the process is reduced.

FIG. 8 is a cross-sectional view of B-B shown in FIG. 5. Referring to the drawings, the support member 50 collects the coating liquid falling from the coating roller 24 and the doctor roller 26 in one place. The supporting member 50 is disposed at the lower end of the feed roller 110. The supporting member 50 has an inclined surface in order to gather the coating liquid into one place. The supporting member 50 is formed with an inclined surface to collect the coating liquid falling from the first transfer device 12, the second transfer device 14 and the coating machine 20 into one place. The supporting member 50 has a discharge portion. The discharge part is connected to the outside and collects the used coating liquid and discharges it to the outside.

Vent exhaust port 60 discharges the odor generated in the coating liquid to the outside. Vent vent 60 is disposed in the center of the support member 50 to remove the odor generated by the chemical. Vent exhaust port 60 preferably has a cover to prevent the coating liquid falling from the first conveying device 12, the second conveying device 14, the coating machine 20 and the like to enter the inside. Vent vent 60 is It is good to be formed so that the smell while leaving the shape. This is not intended to limit the shape of the vent exhaust port 60. The exhaust vent is connected to the exhaust pipe 62 at the lower end of the feed roller 110. The exhaust pipe 62 is preferably a pipe made of stainless steel pipe, PVC, aluminum bellows pipe, or the like. Exhaust pipe 62 is connected to the exhaust vent 60 on one side and the other end is connected to a fan (not shown). A fan (not shown) draws out the smell of the coating liquid to the outside using an exhaust pipe.

It will be described a method of replacing the coating liquid of the plurality of substrate roller coating apparatus according to the present invention.

The supply transfer of the plurality of substrates is stopped. Only the conveying device is driven while only the substrate is not conveyed. Dispensing of the coating liquid from the plurality of nozzles is stopped. The coating liquid used in the process at the multiple nozzles stops feeding the applicator. The cleaning liquid is injected into one of the plurality of nozzles. In this case, the injected cleaning liquid uses a separate nozzle, not a nozzle using a conventionally used coating liquid. This prevents the coating solution and the cleaning solution from mixing with each other. The cleaning liquid is dropped into the coater using a separate nozzle. The coater uses a cleaning liquid to remove the coating liquid from the coating roller and the doctor roller.

The cleaning liquid removes the coating liquid from the transfer device. It is advisable to drop the cleaning liquid when the transfer device is driven. Make sure that the cleaning solution is removed from the existing coating solution in the coating roller and doctor roller. If the existing coating solution is removed, it is determined whether the process is in progress. Once removed, fresh coating fluid is supplied through the nozzle. When the coater is stable, it feeds a plurality of substrates to the transfer device.

Hereinafter, the operation of the embodiment of the present invention will be described in connection with the accompanying drawings.

The substrate is fed through the first transfer device 12. The inserted substrate enters the support roller 22. The entered substrate creates a coating layer on the surface of the substrate to a certain thickness by the coating roller 24. The substrate on which the coating is completed proceeds to the next step through the second transfer device 14.

At this time, the injection member 40 supplies the chemicals required for the process to the nozzle using a connection pipe. The nozzle drops a certain amount of coating liquid onto the doctor roller 26. The driving unit 34 linearly moves so that a certain amount of the coating liquid falls on the doctor roller 26 to control the position of the coating liquid dropped by the nozzle.

In order to change the coating liquid to another coating liquid, one of the plurality of nozzles 32 drops the cleaning liquid to the coating machine 20. When the cleaning of the coater 20 is completed, the required coating liquid is injected to maintain the thickness of the coater 20.

In addition, the coating liquid injected into the surface of the substrate in the coating machine 20 is collected along the inclined surface of the support member 50 and discharged to the outside through the discharge portion. Toxic gas and odor generated during the process are discharged to the outside through the exhaust vent 60.

9 is a perspective view of a plurality of substrate roller coating apparatus according to an embodiment of the present invention, Figure 10 is a front view of the plurality of substrate roller coating apparatus shown in Figure 9, Figure 11 is a cross-sectional view of the CC shown in FIG. 12 is a side view of the plurality of substrate roller coating apparatus shown in FIG.

Referring to the drawings, the apparatus for roller coating a plurality of substrates according to the present invention, the transfer device 10 for transporting the substrate and the coating to drop the coating liquid on the coater 20 and the coater 20 for coating the substrate Group 30 is included.

The conveying apparatus 10 is fixed to the floor of the workplace and conveys the substrate. The conveying apparatus 10 includes a plurality of conveying rollers 110 and an alignment device (not shown) for aligning a plurality of substrates.

The transfer device 10 receives the substrate and transfers it in one direction. In the conveying apparatus 10, a plurality of conveying rollers 110 are arranged at regular intervals. The feed roller 110 rotates clockwise. The transfer device 10 includes a first transfer device 12 for feeding a substrate into the coater 20 and a second transfer device 14 for taking over and discharging the coated substrate.

The first transfer apparatus 12 arranges the substrate transferred in the previous process and transfers the substrate to the coater 20. The first transfer device 12 is arranged with an alignment device (not shown) for accurate coating of the substrate. The alignment device preferably aligns multiple substrates simultaneously.

The second transfer device 14 transfers the coated substrate to the next process. In some cases, the coated substrate may be aligned and discharged for rapid progress of the next process.

The coater 20 applies the coating liquid to the surface of the plurality of substrates transferred from the conveying apparatus 10. The coating machine 20 is a support roller 22 for taking over and supporting a substrate in the transfer roller 110, and a coating roller 24 for contacting and applying the substrate to the substrate and a doctor roller 26 for maintaining a constant coating liquid on the coating roller 24. ).

The support roller 22 takes over and feeds the substrate fed from the first transfer device 12. The support roller 22 rotates in the same direction as the feed roller 110. The supporting rollers 22 are arranged to be in close contact with each other so that the substrate does not fall from the transfer roller 110. The support roller 22 is disposed at the same height as the feed roller 110 so as not to be separated due to the impact during the movement of the substrate. The support roller 22 is disposed between the first conveying device 12 and the second conveying device 14. The support roller 22 is disposed at the same height as the feed roller 110 in order to minimize the impact generated when the substrate is taken over by the first feed device 12.

The coating roller 24 applies a coating liquid to the surface of the substrate. The coating roller 24 is disposed spaced apart from the support roller 22 by a predetermined distance. The coating roller 24 applies a coating liquid to the surface of the substrate transferred from the feed roller 110 to the support roller 22.

The coating roller 24 contacts the substrate when the substrate is transferred to the support roller 22 in the transfer roller 110 to form an application layer. In this case, the coating roller 24 may form a coating layer by applying a coating liquid to the surface of the substrate in a non-contact manner using static electricity. The coating roller 24 rotates in the opposite direction to the supporting roller 22. This is to keep the flow of the substrate smoothly. Both ends of the coating roller 24 is preferably formed with a groove in which the coating liquid falls. The coating roller 24 maintains a constant thickness of the coating liquid due to rotation. That is, in the coating roller 24, when the coating liquid is accumulated at a predetermined thickness or more, the coating liquid moves in the longitudinal direction of the coating roller 24 by the rotational force.

The doctor roller 26 keeps the coating liquid at a constant thickness. The doctor roller 26 is spaced apart from the coating roller 24 by a predetermined distance. The doctor roller 26 is disposed at the upper end of the feed roller 110. The doctor roller 26 rotates in the opposite direction to the coating roller 24.

The applicator 30 drops the coating liquid onto the coater 20. The applicator 30 has a nozzle 32 for injecting a coating liquid into the doctor roller 26 and a driving part 34 that linearly moves by the length of the doctor roller 26 so as to uniformly inject the coating liquid into the doctor roller 26. Included.

The nozzle 32 drops a certain amount of coating liquid onto the doctor roller 26. The nozzle 32 is disposed in the vicinity where the coating roller 24 and the doctor roller 26 contact each other. The nozzle 32 drops the coating liquid into drops where the coating roller 24 and the doctor roller 26 are disposed at regular intervals. This is not intended to limit the injection method of the nozzle 32, and in some cases, a method of continuously injecting a coating liquid may be used.

The drive part 34 makes a linear motion within the length range of the doctor roller 26. The driving unit 34 is preferably disposed at the upper end of the doctor roller 26. The drive unit 34 preferably uses a linear guide to minimize vibration during linear motion. This is not intended to limit the drive 34, and any product capable of linear motion may be used. The driving unit 34 is spaced a predetermined distance to fix the nozzle (32).

The driving part 34 is linearly spaced apart by a predetermined distance along the longitudinal direction of the doctor roller 26. This is to allow the coating liquid falling from the nozzle 32 to fall off the coating liquid at regular intervals to the coating roller 24 and the doctor roller 26 while having a predetermined interval.

The first lead part 130 is operated by the driving of the first servomotor 170 to move the doctor roll 26 according to the viscosity or coating thickness of the coating material so that the gap between the coating roll 24 and the doctor roll 26 is achieved. Adjust. That is, the first lead part 130 is connected to the central axis of the doctor roll 26 through the groove 151 formed in the plate 150 to connect the doctor roll 26 by driving the first servomotor 170. It moves and adjusts the space | interval with the coating roll 24. The plate 150 is provided with a groove 151 for moving the doctor roll 26 within a predetermined length for adjusting the gap with the coating roll 24.

The second lead part 190 is operated by the driving of the second servomotor 210 to move the plate 150 up and down according to the thickness of the substrate transferred by the transfer device disposed under the coating roll 24. To move in the direction of The plate 150 has a structure capable of moving in a vertical direction along a guide rail (not shown) fixed to a member formed inside the plate 150. Accordingly, the coating roll 24 and the doctor roll 26 connected to the plate 150 are moved in the up and down direction along the moving direction of the plate 150 to thereby separate the gap between the transfer device and the coating roll 24 to transfer the substrate. This is adjusted. The central axis of the coating roll 24 is connected and fixed to the inner surface of the plate 150, the central axis of the doctor roll 26 is connected to the first lead portion 130 is formed in the plate 150 It has a structure movable along 151. That is, the second lead part 190 is operated by the driving of the second servomotor 210 to move the plate 150 moving along the guide rail in the up and down direction, so that the coating roll is connected to the plate 150. 24 and the doctor roll 26 are moved in the vertical direction to adjust the distance between the transfer device and the coating roll 24 for transporting the substrate.

The dial gauge 230 is a gap between the coating roll 24 and the doctor roll 26 when the doctor roll 26 is moved by the first lead part 130 operated by the driving of the first servomotor 170. And when the coating roll 24 is moved by the second lead portion 190 which is operated by the drive of the second servomotor 210 displays the distance between the transfer device and the coating roll 24 for transporting the substrate.

In the following operation, the interval between the doctor roll 26 and the coating roll 24 is adjusted according to the viscosity or coating thickness of the coating material by the first lead part 130 operated by the driving of the first servomotor 170. The method will be described.

First, the viscosity or coating thickness of the coating material coated on the substrate is set. When the viscosity or coating thickness of the coating material coated on the substrate is set, the first servomotor 170 is driven. The first lead part 130 is operated by the driving of the first servomotor 170. The first lead part 130 is operated by driving of the first servomotor 170 to move the doctor roll 26 according to the viscosity or coating thickness of the coating material set between the coating roll 24 and the doctor roll 26. The interval is adjusted. In this case, the first lead part 130 is connected to the central axis of the doctor roll 26 through a groove 151 of a predetermined length formed in the plate 150 and moved in an oblique direction along the groove 151 so that the first lead part is moved. The doctor roll 26 connected to the 130 is adjusted to the gap with the coating roll 24.

In addition, a method of adjusting the distance between the substrate transfer device and the coating roll 24 according to the thickness of the substrate by the second lead unit 190 operated by the driving of the second servomotor 210 will be described. do.

First, the thickness of the substrate to be conveyed by the conveying apparatus disposed below the coating roll 24 is set. When the thickness of the substrate is set, the second servomotor 210 is driven. The second lead part 190 is operated by driving the second servomotor 210. The second lead part 190 is operated by the driving of the second servomotor 210 to move the plate 150 up and down according to the thickness of the substrate transferred by the transfer device disposed under the coating roll 24. To move in the direction of Accordingly, the coating roll 24 and the doctor roll 26 connected to the plate 150 are moved in the up and down direction along the moving direction of the plate 150 to thereby separate the gap between the transfer device and the coating roll 24 to transfer the substrate. This is adjusted. That is, the second lead part 190 is operated by the driving of the second servomotor 210 to move the plate 150 moving along the guide rail in the up and down direction, so that the coating roll is connected to the plate 150. 24 and the doctor roll 26 are moved in the vertical direction to adjust the distance between the transfer device and the coating roll 24 for transporting the substrate.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be understood that various modifications and changes may be made without departing from the scope of the appended claims.

10: feeder 110: feed roller
20: coating machine 22: support roller
24: coating roller 26: doctor roller
30: applicator 130: first lead portion
150: plate 170: first servomotor
190: second lead portion 210: second servomotor
230: dial gauge 250: substrate detection sensor
270: stopper 290: substrate aligner

Claims (6)

As a control device for coating and transferring the substrate,
A plurality of sensors each sensing a plurality of substrates respectively installed and transported in a first transfer device located at a front end of a coating device for coating a plurality of substrates and a second transfer device located at a rear end of the coating device;
A controller configured to generate a substrate alignment signal when receiving a substrate detection signal detected and transmitted by the sensor;
A stopper for temporarily stopping a plurality of substrates conveyed by the first conveying apparatus or the second conveying apparatus under control of the controller;
A servo motor driven by the control of the controller;
The plurality of substrates conveyed by the first conveying apparatus or the second conveying apparatus are operated by driving of the servomotor in a state of being temporarily stopped by the stopper to align the substrates by approaching from both sides of each substrate. Aligner;
A first servomotor for controlling a gap between a coating roll for directly coating the substrate and a doctor roll uniformly spreading the coating material on the coating roll;
A first lead part operated by driving of the first servomotor to adjust the gap between the coating roll and the doctor roll by moving the doctor roll according to the viscosity or coating thickness of the coating material;
A second servomotor for controlling an interval between the transfer device for transferring a plurality of substrates and the coating roll according to the thickness of the substrate; And
And a second lead part operated by driving of the second servomotor to adjust a distance between the transfer device and the coating roll according to the thickness of the substrate.
delete The method according to claim 1,
A plurality of nozzles disposed on an upper end of the coating apparatus to drop different coating liquids onto a roller according to a process, and a driving part linearly moving to drop the coating liquid while constantly moving the plurality of nozzles in a longitudinal direction of the roller; Applicator; And
Further comprising an injection member for supplying a coating liquid or a cleaning liquid to each of the plurality of nozzles using the respective connection pipe,
The applicator includes a nozzle for dripping a cleaning liquid to clean the roller.
Control device for coating and transfer of the substrate, characterized in that.
As a control method for coating and transferring the substrate,
(a) detecting a plurality of substrates respectively transported by the first transfer device located at the front of the coating device and the second transfer device located at the rear end of the coating device, the plurality of sensors coating the plurality of substrates;
(b) generating a substrate alignment signal when the controller receives a substrate detection signal detected and transmitted by the sensor;
(c) the stopper temporarily stopping a plurality of substrates conveyed by the first conveying apparatus or the second conveying apparatus under the control of the controller;
(d) driving the servo motor under control of the controller;
(e) A plurality of substrates to which the aligner is conveyed by the first conveying device or the second conveying device are operated by driving of the servomotor in a state where the stopper is temporarily stopped by the stopper to move from both directions of each substrate. To align the substrate;
(f) driving a first servomotor to control a gap between a coating roll for directly coating the plurality of substrates and a doctor roll uniformly spreading the coating material on the coating roll;
(g) operating a first lead part by driving the first servomotor;
(h) moving the doctor roll according to a viscosity or a coating thickness of a predetermined coating material of the first lead part;
(i) adjusting the distance between the coating roll and the doctor roll by moving the doctor roll;
(j) driving a second servomotor for controlling a distance between a transfer device for transferring the plurality of substrates and a coating roll for direct coating on the substrate according to the thickness of the plurality of substrates;
(k) operating a second lead part by driving the second servomotor;
(l) moving the plate to which the central axis of the coating roll is connected according to the thickness of the substrate transferred by the transfer device; And
(m) a control method for coating and transferring the substrate comprising the step of adjusting the distance between the transfer device and the coating roll by moving the coating roll connected to the plate by the movement of the plate. delete delete

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