KR102538671B1 - Film coating apparatus for flat substrate and method of operating the same - Google Patents

Abstract

Disclosed are a film coating apparatus for a flat substrate that is excellent in application speed, application uniformity, and application accuracy, and a method for operating the same. The disclosed film coating apparatus for a flat substrate is configured to apply a film having the same length and width as the flat substrate onto a flat substrate having a certain length and width.

Description

Film coating apparatus for flat substrate and method of operating the same {Film coating apparatus for flat substrate and method of operating the same}

A film coating device for a flat substrate and an operating method thereof are disclosed. More specifically, a film coating device for a flat substrate excellent in coating speed, uniformity of coating and accuracy of coating and an operation method thereof are disclosed.

Flat glass products manufactured by manufacturers of flat glass products are delivered through coating, and usually more than 20 sheets of flat glass products are loaded onto the delivery platform and delivered. However, since flat glass products stacked on the top layer are exposed to the external environment and damaged, they are not actually used and discarded. In other words, in the past, when a large number of flat glass products were loaded and delivered on the delivery platform, one sheet of glass product had to be covered with a bonus to protect the product for each delivery platform. There was a big problem.

One embodiment of the present invention provides a film coating device for a flat substrate excellent in coating speed, coating uniformity and coating accuracy.

Another embodiment of the present invention provides a method of operating the film coating device for the flat substrate.

One aspect of the present invention,

Provided is a film coating device for a flat substrate configured to apply a film having the same length and width as the flat substrate on a flat substrate having a certain length and width.

The film application device for the flat substrate is a film unwinding unit configured to fix the position of the film wound in a roll form and unwind the film in this state, a feeding roll configured to transfer the film discharged from the film unwinding unit in one direction, A film width cutting unit configured to cut the side end of the film discharged from the feeding roll, a film length cutting unit configured to cut the film passing through the film width cutting unit in the width direction, and the film passing through the film length cutting unit It may include a plurality of lamination rolls configured to laminate them to each other while transferring the flat substrate together.

The film unwinding unit may include a first film unwinder and a second film unwinder configured to operate alternately with each other and to control rotation speed.

The film application device for the flat substrate further includes a fixed pressure roll, a movable pressure roll, and a cylinder for connecting the film disposed at a rear end of the film unwinding unit, and the cylinder for connecting the film pushes the movable pressure roll and the movable pressure roll. It may be configured to separate the movable pressure roll from the fixed pressure roll by bringing the roll into close contact with the fixed pressure roll or by pulling the movable pressure roll.

The feeding roll may include a first feeding roll and a second feeding roll configured to operate in conjunction with each other.

The flat substrate film application device may further include a dancer unit disposed between the film unwinding unit and the feeding roll to supply the film discharged from the film unwinding unit to the feeding roll at a constant speed without rapid speed change. can

The dancer unit includes a dancer shaft extending in one direction, a plurality of dancer arms rotatably coupled to the dancer shaft in a direction crossing the dancer shaft, a dancer roll coupled to the dancer arm, and a predetermined size to the dancer arm. It may include a dancer cylinder configured to provide position fixing force.

The dancer roll may be configured to move in both directions along an arcuate trajectory by the moving force of the film conveyed in one direction by the feeding roll.

The film coating device for the flat substrate further includes a potentiometer configured to detect the position of the dancer roll and transmit the detection signal to the film unwinding unit, and the film unwinding unit responds to the detection signal transmitted from the potentiometer. It may be configured to adjust the rotational speed of the film unwinder according to.

The film coating device for the flat substrate may further include a mimifilm winding unit configured to wind the mimifilm separated from the film cut by the film width cutting unit.

The flat substrate film application device pushes a fixed transfer roller configured to transfer the film that has passed through the film width cutting unit and the film being transported in close contact with the surface of the fixed transfer roller to fix the film to the fixed transfer roller. It may further include a film fixing unit configured to.

The flat substrate film application device includes a movable transfer roller configured to transfer the film passing through the fixed transfer roller and a film tension adjusting unit configured to move the movable transfer roller in both directions by pushing or pulling the movable transfer roller can include more.

The film tension fixing unit moves the movable type transfer roller in one direction in a state in which the film fixing unit pushes the film to be transferred in close contact with the surface of the fixed type transfer roller to fix the film to the fixed type transfer roller, thereby moving the fixed transfer type transfer roller. The tension of the film located between the roller and the movable transfer roller is lowered, and the film fixing unit is in close contact with the surface of the fixed transfer roller and is spaced apart from the film to be transported. It may be configured to increase the tension of the film positioned between the fixed type transfer roller and the movable type transfer roller by moving to.

The plurality of lamination rolls may include a suction roll, a lower driving roll of the suction roll, a secondary pressure roll, and a lower driving roll of the secondary pressure roll.

The suction roll may include a plurality of through holes passing through outer and inner surfaces of the suction roll, and cut grooves formed on the outer surface of the suction roll to extend in a longitudinal direction thereof.

The film coating device for a flat substrate further includes an air supply control unit configured to suck external air of the suction roll through the through hole of the suction roll or discharge air to the outside of the suction roll through the through hole. can do.

The air supply control unit may include a chamber; a first filter; a second filter; air blower; a first three-way valve configured to communicate with any two of the chamber, the first filter, and the air blower and to block the other one; and a second three-way valve configured to communicate with any two of the chamber, the second filter, and the air blower and to block the other one.

Another aspect of the present invention is

As a method of operating the film coating device for the flat substrate,

Transferring the film in one direction using a plurality of rollers (S10);

Cutting the side end of the film during transport of the film (S20);

Primary laminating the film and the flat substrate while transferring the flat substrate together with the film having the side end cut in one direction using a plurality of laminating rolls (S30);

Stopping the transfer of the film (S40);

Cutting the film in the width direction (S50); and

A film for a flat substrate comprising the step (S60) of secondarily laminating the film and the flat substrate while additionally transferring the flat substrate along with the film cut in the width direction using the plurality of laminating rolls in one direction. A method of operating the application device is provided.

The step (S40) may be performed in a state in which the front end tension of the film is maintained high.

The method of operating the film coating device for a flat substrate may further include a step (S45) of lowering the tension of the rear end of the film between the steps (S40) and the step (S50).

The method of operating the film coating device for a flat substrate may further include, after the step (S60), a step (S70) of increasing the tension of the rear end of the film again and a step (S80) of resuming the transfer of the film. there is.

A film coating device for a flat substrate according to an embodiment of the present invention has advantages of excellent coating speed, uniformity of coating and accuracy of coating.

1 is a view schematically showing a film coating device for a flat substrate according to an embodiment of the present invention, and is a view showing the operation until the supply of the film is stopped for cutting in the width direction of the film while supplying the film.
2 is a diagram schematically showing a film coating device for a flat substrate according to an embodiment of the present invention, operation until the film is cut in the width direction after holding the origin of the suction roll in a state where the supply of the film is stopped is a drawing showing
Figure 3 is a view schematically showing a film coating device for a flat substrate according to an embodiment of the present invention, after cutting the film in the width direction, it is a view showing the operation immediately before resuming the supply of the film.

Hereinafter, a film coating device for a flat substrate according to an embodiment of the present invention and an operating method thereof will be described in detail with reference to the drawings.

In this specification, “front end” refers to a part located relatively tail when the film transport direction is indicated by an arrow, and “rear end” refers to a relatively head side when the film transport direction is indicated by an arrow. means the part of

In addition, in the present specification, “front end” refers to a relatively tail side when the film transport direction is indicated by an arrow, and “rear end” refers to a relatively head side when the film transport direction is indicated by an arrow.

Also, in this specification, “coating” and “lamination” are used in substantially the same meaning.

1 is a diagram schematically showing a film coating device 100 for a flat substrate according to an embodiment of the present invention, in which the film FL is supplied while supplying the film FL to cut the film FL in the width direction. 2 is a diagram schematically showing the film coating device 100 for a flat substrate according to an embodiment of the present invention, in a state in which the supply of the film FL is stopped, and the suction roll is a diagram showing the operation until stopped. It is a view showing the operation until the origin of 81 is set and then the film FL is cut in the width direction. As shown, it is a view showing the operation from cutting the film FL in the width direction until just before resuming the supply of the film FL.

1 to 3, the film coating device 100 for a flat substrate according to an embodiment of the present invention is substantially the same length and length as the flat substrate FS on a flat substrate FS having a certain length and width. It may be configured to apply a film FL having a width.

The flat substrate FS may be a glass substrate, but the present invention is not limited thereto.

The film FL may be a release film, but the present invention is not limited thereto.

Specifically, the flat substrate film coating device 100 includes a film unwinding unit 110, feeding rolls R41 and R42, a film width cutting unit 140, a film length cutting unit 180, and a plurality of laminating rolls ( R81, R82, R91, R92).

The film unwinding unit 110 may be configured to fix the position of the film FL wound in a roll form and unwind the film FL in this state.

In addition, the film unwinding unit 110 may include a first film unwinder 111 and a second film unwinder 112 .

The first film unwinder 111 and the second film unwinder 112 may be operated alternately with each other and may be configured to control rotation speed. However, the present invention is not limited thereto, and the first film unwinder 111 and the second film unwinder 112 may temporarily operate together.

The feeding rolls R41 and R42 may be configured to transfer the film FL discharged from the film unwinding unit 110 in one direction. To this end, the feeding rolls R41 and R42 may each have their own driving force.

In addition, the feeding rolls R41 and R42 may include a first feeding roll R41 and a second feeding roll R42. The first feeding roll R41 and the second feeding roll R42 may be configured to operate in conjunction with each other. Specifically, the first feeding roll (R41) and the second feeding roll (R42) may be configured to be simultaneously operated at the same rotational speed or stopped at the same time. At this time, the film FL is in close contact with the surface of the first feeding roll R41 and transferred in a counterclockwise direction, and then adhered to the surface of the second feeding roll R42 and transferred in a clockwise direction, or the first feeding roll R41 ) After being in close contact with the surface of the second feeding roll (R42) and transferred in a clockwise direction, it may be in close contact with the surface of the second feeding roll (R42) and transferred in a counterclockwise direction. In this way, when the transfer direction of the film FL is changed, the slip phenomenon in which the film FL adheres to the surfaces of the feeding rolls R41 and R42 during transport can be prevented, thereby preventing the slip phenomenon of the film FL. The conveying speed can be precisely controlled. If either one of the first feeding roll R41 and the second feeding roll R42 is omitted or the film FL does not change its transport direction while passing through the feeding rolls R41 and R42, the film In the process of conveying the (FL) in close contact with the surfaces of the feeding rolls (R41, R42), a slipping phenomenon occurs, making it impossible to accurately control the conveying speed of the film (FL).

The film width cutting unit 140 may be configured to cut the side end of the film FL discharged from the feeding roll R42. Accordingly, the width of the film FL may be adjusted to be equal to or similar to that of the flat substrate FS.

Also, the film width cutting unit 140 may be operated while the film FL is being transferred.

The film length cutting unit 180 may be configured to cut the film FL passing through the film width cutting unit 140 in the width direction. Accordingly, the length of the film FL passing through the film length cutting unit 180 may be adjusted to be equal to or similar to the length of the flat substrate FS. Specifically, the film length cutting unit 180 may include a knife KN configured to extend in one direction and cut the film FL in the width direction.

A plurality of laminating rolls (R81, R82, R91, R92) may be configured to laminate them to each other while transferring the flat substrate (FS) together with the film (FL) passing through the film length cutting unit (180). To this end, the plurality of lamination rolls (R81, R82, R91, R92) may be configured to have their own driving force.

Specifically, the plurality of laminating rolls (R81, R82, R91, R92) include a suction roll (R81), a lower driving roll (R82) of the suction roll (R81), a secondary pressure roll (R91), and a secondary pressure roll (R91 ) may include a lower driving roll R92. Specifically, while the flat substrate FS and the film FL pass between the suction roll R81 and the lower drive roll R82 together with the flat substrate FS in a state in which the film FL is in close contact with the flat substrate FS, the flat substrate FS and the film FL are primarily laminated, and then the primarily laminated flat substrate FS and the film FL pass together between the secondary pressure roll R91 and the lower drive roll R92 to form a flat substrate (FS) and the film (FL) may be secondarily laminated.

In addition, the suction roll R81 is driven together with the lower driving roll R82 at a position very close to the lower driving roll R82 so that the flat substrate FS and the film ( FL) are simultaneously transported and initially laminated with them, but may be configured to be spaced apart from the lower drive roll R82 immediately after the first laminate. In this way, when the suction roll R81 is separated from the lower drive roll R82 immediately after the initial lamination, air bubbles are not generated between the flat substrate FS and the film FL, so that application uniformity can be improved. On the other hand, if the suction roll R81 remains close to the lower drive roll R82 even after the initial lamination, air bubbles are generated between the flat substrate FS and the film FL, resulting in poor coating uniformity.

In addition, the suction roll R81 may include a plurality of through holes (not shown) and cutting grooves (not shown).

The plurality of through holes may be configured to pass through the outer and inner surfaces of the suction roll R81. For example, the suction roll R81 may include thousands of through holes arranged at regular intervals.

The cutting groove may be formed to extend in the longitudinal direction of the outer surface of the suction roll R81. Specifically, the film FL can be cut in the width direction without damaging the surface of the suction roll R81 by inserting the knife KN provided in the film length cutting unit 180 into the cutting groove.

In addition, the flat substrate film application device 100 includes guide rolls R11 and R12 disposed at the rear end of the film unwinding unit 110, a fixed pressure roll R21, a movable pressure roll R22, and a cylinder for connecting the film. (120) may be further included.

The cylinder 120 for film connection pushes the movable pressure roll R22 to bring the movable pressure roll R22 into close contact with the fixed pressure roll R21 or pulls the movable pressure roll R22 to move the movable pressure roll R22. It may be configured to be spaced apart from the fixed pressure roll (R21). Specifically, when the film FL is supplied from the first unwinder 111, the movable pressure roll R22 is pulled to separate the movable pressure roll R22 from the fixed pressure roll R21. The film FL discharged from the unwinder 111 may be transported sequentially through the guide roll R11 and the fixed pressure roll R21.

When the film FL is supplied from the second unwinder 112, the movable pressure roll R22 is pushed to bring the movable pressure roll R22 into close contact with the fixed pressure roll R21, and at this time, the second unwinder ( The film FL discharged from 112) may pass through the guide roll R12 and be transferred between the fixed pressure roll R21 and the movable pressure roll R22.

In addition, the flat substrate film coating device 100 may further include a dancer unit 130 disposed between the film unwinding unit 110 and the feeding roll R41.

The dancer unit 130 may be configured to supply the film FL discharged from the film unwinding unit 110 to the feeding roll R41 at a constant speed without rapid speed change.

Specifically, the dancer unit 130 may include a dancer shaft 131, a plurality of dancer arms 132, a dancer roll 133, and a dancer cylinder 134.

The dancer shaft 131 may extend in one direction.

A plurality of dancer arms 132 may be rotatably coupled to the dancer shaft 131 in a direction crossing the dancer shaft 131 .

The dancer roll 133 may be coupled to the dancer arm 132 .

The dancer cylinder 134 may be configured to provide a position fixing force of a predetermined size to the dancer arm 132 . Specifically, the dancer cylinder 134 pushes the dancer arm 132 with a force of a predetermined magnitude, and when a force exceeding the force of a predetermined magnitude is not applied to the dancer arm 132, the dancer arm 132 The position is fixed (that is, the leftmost position is fixed in FIGS. 1 to 3), but when a force exceeding a predetermined magnitude of force is applied to the dancer arm 132, the position fixing force of the dancer arm 132 is released The dancer arm 132 is moved (that is, moves from the leftmost position to a position between the leftmost and rightmost positions in FIGS. 1 to 3 ). In addition, since the dancer roll 133 is coupled to one end of the dancer arm 132, when the dancer arm 132 is fixed in position, the dancer roll 133 is also fixed in position, and when the dancer arm 132 moves, the dancer The roll 133 also moves together.

In addition, the dancer roll 133 is moved in both directions (ie, clockwise) along an arcuate trajectory by the moving force of the film FL conveyed in one direction by the feeding rolls R41 and R42 (ie, the force to move in one direction). movement and counterclockwise movement) may be configured to be possible. Specifically, as the feeding rolls R41 and R42 rotate, a moving force is generated in the film FL. When the moving force is less than a reference value, the dancer roll 133 is positioned at the leftmost side in FIGS. 1 to 3 It is fixed, and when the moving force exceeds the reference value, the dancer roll 133 deviates from the leftmost position in FIGS. 1 to 3 and moves to a position between the leftmost and rightmost positions.

In addition, the flat substrate film application device 100 may further include a potentiometer (not shown).

The potentiometer (not shown) may be configured to detect the position of the dancer roll 133 and transmit the detection signal to the film unwinding unit 110 . In addition, the film unwinding unit 100 may be configured to adjust the rotation speed of the film unwinders 111 and 112 according to the detection signal transmitted from the potentiometer. More specifically, the film unwinding unit 100 increases the rotational speed of the film unwinders 111 and 112 as the dancer roll 133 deviates from the leftmost side in FIGS. 1 to 3 and approaches the rightmost side. can be configured.

In addition, the flat substrate film coating device 100 may further include a mimi film winding unit 150 .

The Mimi film winding unit 150 may be configured to wind the Mimi film MF separated from the film FL cut by the film width cutting unit 140 .

In addition, the flat substrate film application device 100 may further include a fixed transfer roller R60 and a film fixing unit 160 .

The fixed transfer roller R60 may be configured to transfer the film FL passing through the film width cutting unit 140 by being fixed in position.

The film fixing unit 160 may be configured to adhere to the surface of the fixed conveying roller R60 and push the conveyed film FL to fix the film FL to the fixed conveying roller R60. Accordingly, although the transfer of the film FL is stopped, the portion of the film FL positioned at the front end of the fixed transfer roller R60 can still maintain high tension.

In addition, the flat substrate film application device 100 may further include a movable transfer roller R70 and a film tension adjusting unit 170 .

The movable transfer roller R70 may be configured to transfer the film FL that has passed through the fixed transfer roller R60.

The film tension adjusting unit 170 may push or pull the movable feed roller R70 to move the movable feed roller R70 in both directions.

Specifically, referring to FIG. 1, in the film tension adjusting unit 170, the film fixing unit 160 adheres to the surface of the fixed type conveying roller R60 and is spaced apart from the conveyed film FL so that the film FL is conveyed. In this state, the movable feed roller R70 may be moved in the direction of the arrow to increase the tension of the film FL positioned between the fixed feed roller R60 and the movable feed roller R70 (this is the first referred to as functions).

Also, referring to FIG. 2 , the film tension adjusting unit 170 pushes the film FL to be transported while the film fixing unit 160 is in close contact with the surface of the fixed type transfer roller R60 so that the film FL is fixedly transferred. In the state where the position is fixed to the roller (R60), the movable feed roller (R70) is moved in the direction of the arrow to lower the tension of the film (FL) located between the fixed feed roller (R60) and the movable feed roller (R70) (this is referred to as the second function).

The reason why the combination of the film tension adjusting unit 170 and the movable feed roller R70 is configured to have the second function is as follows: that is, the film length cutting unit 180 cuts the film FL in the width direction. In this case, the knife (KF) provided in the film length cutting unit 180 should be aligned with the cutting groove so that the knife (KF) can be inserted into the cutting groove formed in the suction roll (R81). However, when the tension of the film FL located between the fixed feed roller R60 and the movable feed roller R70 is high, the suction roll R81 rotates smoothly due to the interference caused by the tension of the film FL. Therefore, it is difficult for the cutting groove to move to the origin where the knife KF is located. Therefore, the tension of the film FL located between the fixed transfer roller R60 and the movable transfer roller R70 is lowered to remove the interference caused by the tension of the film FL, so that the suction roll R81 is rotatable. allows it to become

In addition, the flat substrate film application device 100 may further include an air supply control unit 190 .

The air supply control unit 190 may be configured to suck in external air of the suction roll R81 through a through hole of the suction roll R81 or discharge air to the outside of the suction roll R81 through the through hole. there is.

Specifically, the film fixing unit 160 is in close contact with the surface of the fixed type conveying roller R60 and is spaced apart from the film FL to be conveyed so that the film FL is conveyed, and the film tension adjusting unit 170 moves the conveying In a state where the roller (R70) is moved in the direction of the arrow to increase the tension of the film (FL) located between the fixed type transfer roller (R60) and the movable type transfer roller (R70), the air supply control unit (190) controls the suction roll (R81). ), when the outside air of the suction roll R81 is sucked in through the through hole of the suction roll R81, the adhesion of the film FL to be transported in close contact with the surface of the suction roll R81 increases, thereby preventing the surface slip phenomenon of the film FL. It can be prevented.

In addition, the film fixing unit 160 adheres to the surface of the fixed feed roller R60 and pushes the conveyed film FL to fix the film FL to the fixed feed roller R60, and the film tension adjusting unit 170 moves the movable feed roller R70 in the direction of the arrow to lower the tension of the film FL located between the fixed feed roller R60 and the movable feed roller R70, the air supply control unit 190 ) discharges air to the outside of the suction roll (R81) through the through-hole of the suction roll (R81), the film (FL) is separated from the surface of the suction roll (R81) by air pressure and the suction roll (R81) It rotates smoothly, so that the cutting groove can easily move to the origin where the knife (KN) is located.

In addition, the air supply control unit 190 may include a chamber 191, a pair of filters FT1 and FT2, an air blower 192 and a pair of three-way valves VV1 and VV2.

The first three-way valve VV1 may be configured to allow two of the chamber 191, the first filter FT1 and the air blower 192 to communicate with each other and block the other one. As an example, the first three-way valve VV1 may be configured to communicate with the chamber 191 and the air blower 192 and to block the first filter FT1. As another example, the first three-way valve VV1 may be configured to communicate with the first filter FT1 and the air blower 192 and block the chamber 191 .

The second three-way valve (VV2) may be configured to communicate with any two of the chamber 191, the second filter (FT2) and the air blower 192 and block the other one. As an example, the second three-way valve VV2 may be configured to communicate with the second filter FT2 and the air blower 192 and to block the chamber 191 . As another example, the second three-way valve VV2 may be configured to communicate with the chamber 191 and the air blower 192 and block the second filter FT2.

1 and 3, when the air supply control unit 190 sucks the external air of the suction roll R81 through the through hole of the suction roll R81, the first three-way valve VV1 is a chamber ( 191) and the air blower 192 communicate with each other and operate to block the first filter FT1, and the second three-way valve VV2 communicates with the second filter FT2 and the air blower 192 and the chamber (191) can act to block.

Referring to FIG. 2 , when the air supply control unit 190 discharges air to the outside of the suction roll R81 through the through hole of the suction roll R81, the first three-way valve VV1 is a first filter ( FT1) and the air blower 192 communicate with each other and operate to block the chamber 191, and the second three-way valve VV2 communicates the chamber 191 and the air blower 192 with each other and the second filter FT2 ) can act to block.

Hereinafter, an operating method of the flat substrate film coating device 100 according to an embodiment of the present invention will be described in detail.

The method of operating the film coating device 100 for a flat substrate according to an embodiment of the present invention includes a plurality of rollers (R11, R12, R21, R22, R31, R32, R33, R41, R42, R51, R52, R53, R60 , R70) to transfer the film FL in one direction (S10), cutting the side end of the film FL during transfer (S20), a plurality of laminating rolls (R81, R82) while transferring the flat substrate FS together with the film FL having the side end cut in one direction (S30) of primary laminating the film FL and the flat substrate FS, the film ( Stopping the transfer of FL) (S40), cutting the film (FL) in the width direction (S50), and using a plurality of laminating rolls (R91, R92) to cut the film (FL) in the width direction and and secondarily laminating the film FL and the flat substrate FS while additionally transferring the flat substrate FS in one direction (S60).

The step S40 may be performed while maintaining the tension of the front end of the film FL (that is, the tension of the portion of the film FL located at the front end of the fixed transfer roller R60) high.

In addition, the operating method of the flat substrate film coating device 100 is, between the steps S40 and S50, the rear end tension of the film FL (that is, the fixed transfer roller R60 and the movable type A step (S45) of lowering the tension of the film FL positioned between the transfer rollers R70 may be further included.

The method of operating the film coating device 100 for a flat substrate is, after the step (S60), the rear end tension of the film (ie, the film positioned between the fixed transfer roller (R60) and the movable transfer roller (R70)) The step of re-increasing the tension (FL) (S70) and resuming the transfer of the film (S80) may be further included.

Referring to FIG. 3 , in the step S70, the film fixing unit 160 adheres to the surface of the fixed type transfer roller R60 and pushes the film FL to be transferred to move the film FL to the fixed type transfer roller R60. While maintaining the fixed position, the film tension adjusting unit 170 moves the movable feed roller R70 in the direction of the arrow to form a film FL positioned between the fixed feed roller R60 and the movable feed roller R70 tension can be increased. In addition, in the step S80, the film fixing unit 160 is in close contact with the surface of the fixed transfer roller R60 and is separated from the film FL to be transferred, so that the transfer of the film FL can be resumed.

Preferred embodiments according to the present invention have been described with reference to the drawings above, but this is only exemplary, and those skilled in the art can understand that various modifications and equivalent other embodiments are possible therefrom. There will be. Therefore, the scope of protection of the present invention should be defined by the appended claims.

100: film coating device for flat substrate 110: film unwinding unit
111, 112: Film unwinder 120: Cylinder for film connection
130: dancer unit 131: dancer axis
132: dancer arm 133: dancer roll
134: dancer cylinder 140: film width cutting unit
150: Mimi film winding unit 160: Film fixing unit
170: film tension adjustment unit 180: film length cutting unit
190: air supply control unit 191: chamber
192: air blower FL: film
KN: Knife FS: Flat Board
PD: finished product FT1, FT2: filter
VV1, VV2: 3-way valve R41, R42: feeding roll
R81: Suction roll R91: Pressure roll
R82, R92: drive roll

Claims (21)

It is configured to apply a film having the same length and width as the flat substrate on a flat substrate having a certain length and width,
a film unwinding unit configured to fix the position of the film wound in the form of a roll and unwind the film in this state;
a feeding roll configured to transfer the film discharged from the film unwinding unit in one direction;
a film width cutting unit configured to cut a side end of the film discharged from the feeding roll;
a film length cutting unit configured to cut the film passing through the film width cutting unit in a width direction; and
It includes a plurality of lamination rolls configured to laminate them to each other while transferring the flat substrate together with the film passing through the film length cutting unit,
The plurality of laminating rolls include a suction roll, a lower driving roll of the suction roll, a secondary pressure roll, and a lower driving roll of the secondary pressure roll,
The suction roll includes a plurality of through holes configured to penetrate the outer surface and the inner surface thereof and a cutting groove formed on the outer surface of the suction roll to extend in the longitudinal direction thereof,
A fixed transfer roller configured to transfer the film passing through the film width cutting unit and a film fixing unit configured to push the film to be transported in close contact with the surface of the fixed transfer roller and fix the film to the fixed transfer roller include,
Further comprising a movable transport roller configured to transport the film passing through the fixed transport roller and a film tension adjusting unit configured to move the movable transport roller in both directions by pushing or pulling the movable transport roller,
The film tension fixing unit moves the movable type transfer roller in one direction in a state in which the film fixing unit pushes the film to be transferred in close contact with the surface of the fixed type transfer roller to fix the film to the fixed type transfer roller, thereby moving the fixed transfer type transfer roller. The tension of the film located between the roller and the movable transfer roller is lowered, and the film fixing unit is in close contact with the surface of the fixed transfer roller and is spaced apart from the film to be transported. A film coating device for a flat substrate configured to move to increase the tension of the film positioned between the fixed transfer roller and the movable transfer roller. delete According to claim 1,
The film unwinding unit comprises a first film unwinder and a second film unwinder configured to be operated alternately and to control rotational speed. According to claim 1,
It further includes a fixed pressure roll, a movable pressure roll, and a cylinder for connecting the film disposed at a rear end of the film unwinding unit, wherein the cylinder for connecting the film pushes the movable pressure roll to bring the movable pressure roll into close contact with the fixed pressure roll. Film coating device for a flat substrate configured to separate the movable pressure roll from the fixed pressure roll by pulling the movable pressure roll or by pulling the movable pressure roll. According to claim 1,
The feeding roll is a film coating device for a flat substrate including a first feeding roll and a second feeding roll configured to operate in conjunction with each other. According to claim 1,
A film application device for a flat substrate further comprising a dancer unit disposed between the film unwinding unit and the feeding roll and configured to supply the film discharged from the film unwinding unit to the feeding roll at a constant speed without rapid speed change. According to claim 6,
The dancer unit includes a dancer shaft extending in one direction, a plurality of dancer arms rotatably coupled to the dancer shaft in a direction crossing the dancer shaft, a dancer roll coupled to the dancer arm, and a predetermined size to the dancer arm. A film coating device for a flat substrate comprising a dancer cylinder configured to provide position fixing force. According to claim 7,
The dancer roll is a film coating device for a flat substrate configured to move in both directions along an arcuate trajectory by the moving force of the film conveyed in one direction by the feeding roll. According to claim 8,
A potentiometer configured to sense the position of the dancer roll and transmit the detection signal to the film unwinding unit, wherein the film unwinding unit rotates the film unwinder according to the detection signal transmitted from the potentiometer. A film coating device for a flat substrate configured to control the According to claim 1,
A film coating device for a flat substrate further comprising a mimifilm winding unit configured to wind the mimifilm separated from the film cut by the film width cutting unit. delete delete delete delete delete According to claim 1,
and an air supply control unit configured to suck external air of the suction roll through the through hole of the suction roll or discharge air to the outside of the suction roll through the through hole. According to claim 16,
The air supply control unit may include a chamber; a first filter; a second filter; air blower; a first three-way valve configured to communicate with any two of the chamber, the first filter, and the air blower and to block the other one; and a second three-way valve configured to allow any two of the chamber, the second filter, and the air blower to communicate with each other and block the other one;
When the air supply control unit sucks the outside air of the suction roll through the through hole of the suction roll, the first three-way valve communicates the chamber and the air blower and blocks the first filter, and the second The three-way valve is configured so that the second filter and the air blower communicate with each other and the chamber is blocked;
When the air supply control unit discharges the external air of the suction roll through the through hole of the suction roll, the first three-way valve communicates the first filter and the air blower to each other, blocks the chamber, and the second The three-way valve is a film coating device for a flat substrate configured to communicate with each other and block the second filter with the chamber and the air blower. A method of operating the film coating device for a flat substrate according to any one of claims 1, 3 to 10, 16 and 17,
Transferring the film in one direction using a plurality of rollers (S10);
Cutting the side end of the film during transport of the film (S20);
Primary laminating the film and the flat substrate while transferring the flat substrate together with the film having the side end cut in one direction using a plurality of laminating rolls (S30);
Stopping the transfer of the film (S40);
Cutting the film in the width direction (S50); and
A film for a flat substrate comprising the step (S60) of secondarily laminating the film and the flat substrate while additionally transferring the flat substrate along with the film cut in the width direction using the plurality of laminating rolls in one direction. How the applicator works. According to claim 18,
The step (S40) is a method of operating a film coating device for a flat substrate performed while maintaining the tension of the front end of the film. According to claim 18,
The method of operating the film coating device for a flat substrate further comprising a step (S45) of lowering the tension of the rear end of the film between the steps (S40) and the step (S50). According to claim 20,
After the step (S60), the method of operating the film coating device for a flat substrate further comprising the step of raising the tension of the rear end of the film again (S70) and the step of resuming the transfer of the film (S80).

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