KR101900486B1 - Laminating apparatus of base paper - Google Patents

Abstract

The present invention relates to an apparatus for laminating a base paper and a coated paper to upper and lower surfaces thereof, and especially, to a technology related to a lamination apparatus, which improves all process automation and lapping machines by providing a separation and release structure of the coated paper, a temporary and final laminate structure, filtering and cleaning of the laminated finished sheet, and a drying structure. More specifically, the present invention relates to a double-sided coating type lamination apparatus, which has the greatest effect of reducing manufacturing cost and enhancing market competitiveness by increasing productivity by automating supplying a coating paper of the base paper and the upper and lower surfaces thereof, separation and release of a release paper for coating, temporary and final lamination, foreign matter removal and cleaning and drying processes.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a double-

The present invention relates to an apparatus for laminating coated paper to a paper sheet and its upper surface, and more particularly to a paper sheet separating and discharging structure of a coated paper sheet, a temporary and final lamination structure, a filtering and washing and a drying structure for a laminated finished sheet To provide both process automation and improved productivity.

As a technique relating to a device for laminating a coated paper to the surface of a raw paper,

Korean Patent Registration No. 10-1026994 (Registered on Mar. 29, 2011) "Original Coating Apparatus"

A leg portion formed on the leg portion, a body portion formed with an ejection portion and a drying portion in the upper portion of the leg portion, a paper roller on which a raw paper wound on the front of the body portion is fixed, and a winding portion formed with a product roller, It is convenient because it is coated uniformly over the whole, and it is convenient to work while automatically spreading the rolled raw paper, and since the coated raw paper is rewound on the product roller, the productivity is improved because there is no need for post-work .

The present invention has been proposed in order to solve the above-mentioned problems, and it is an object of the present invention to provide a method and apparatus for supplying raw paper and its top and bottom coated paper, separating and releasing a release paper of a coating and temporary and final laminating, The present invention provides a two-sided coating type laminating apparatus of the present invention for enhancing the competitiveness.

In order to solve the above technical problems, the double-side coating type jointing apparatus according to the present invention includes a bottom roller 11 wound with a bottom coated paper 1 having a release paper P on its upper surface, A bottom feeder unit 10 including bottom feed guide means 12 for guiding the feeding of the bottom coated paper 1 and a middle roller 21 disposed on the bottom side of the bottom roller 11 and around which a base paper 2 is wound And a middle supply guide means 22 for guiding the conveyance of the paper 2 fed from the middle roller 21 and a middle feeding unit 20 disposed on the upper side of the middle roller 21 A top roller 31 wound with a top coated paper 3 having a release paper P on the bottom and a top supply guide means 32 for guiding the transport of the top coated paper 3 fed from the top roller 31 And a bottom coating paper (1) when the bottom coating paper (1) is conveyed by the bottom feeding guide means (12) (P) is separated and discharged from the top coated paper (3) when the top coated paper (3) is conveyed by the top feed guide means (32) for separating and releasing the release paper A table 61 and a conveying guide means 62 arranged on the table 61 for guiding the conveyance of the bottom coated paper 1, the paper 2 and the top coated paper 3 A base sheet 60 disposed on the table 61 and temporarily lapped with the bottom coated paper 1, the base paper 2 and the top coated paper 3 stacked in this order, And a provisional sheet S1 which is disposed on the table 61 and temporarily joined by the temporary hosing unit 70 is held by the heating means 84 by the heating means 84, A final lamination unit 80 disposed on the table 61 to form a coating sheet S2 so as to form a coating sheet S2, A drying unit 100 for drying the coating sheet S2 which is disposed on the table 61 and has been cleaned by the clean unit 90; And a sheet roller 112 disposed on the table 61 and on which a coated sheet S2 dried by the dry unit 100 is wound and a sheet roller 112 wound on the sheet roller 111 in the dry unit 100. [ And a sheet discharge unit (110) including a sheet discharge guide means (113) for guiding the conveyance of the coated sheet (S2) to the clean unit (90), wherein the clean unit (90) is cleaned by a nozzle discharging fresh water at a predetermined pressure , And the supernatant water is sprayed in a spray form so that the water can be washed in a small amount per unit area.

According to the present invention, it is possible to supply raw paper and its top and bottom coated paper sheets, to separate and discharge the release paper of the coating, and to automate temporary and final paper and foreign matter removing and cleaning and drying processes, thereby maximizing the productivity and reducing the manufacturing cost, have.

In addition, there is an effect of facilitating the removal of the coating liquid and the removal of the scattering material after the laminating process.

In addition, after the post-lapping cleaning and drying process, high-quality production is possible.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a side view showing a double-sided coating type lidding device according to the present invention,
Figure 2 is a side elevation view for showing the bottom, middle and top feed units and the bottom and top exit units;
3 is a side view showing a base unit, a temporary lobe unit, a final lobe unit,
Fig. 4 is a three-dimensional view for showing the filter unit,
Fig. 5 is a cross-sectional view of Fig. 4,
6 is a side view showing a dry unit and a sheet discharging unit,
Fig. 7 is a three-dimensional view for showing a clean unit. Fig.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings, wherein the following description is based on FIG. 1, .

As shown in Figs. 1 to 7, the two-sided coating type laminating machine of the paper making method according to the present invention comprises:

The bottom feed unit 10, the middle feed unit 20, the top feed unit 30, the bottom feed unit 40, the top feed unit 50, the base unit 60, the temporary join unit 70, A lint unit 80, a clean unit 90, a dry unit 100, and a sheet discharging unit 110.

Looking at each configuration,

1 and 2, the bottom feed unit 10 includes a bottom roller 11 wound with a bottom coated paper 1 having a release paper P on its upper surface, And a bottom feed guide means (12) for guiding the feeding of the bottom coated paper (1).

The bottom feed unit 10 includes a bottom feed case 13 on which the bottom roller 11 and the bottom feed guide unit 12 are mounted and a bottom feed guide unit 12, A bottom horizontal bar 14 disposed between the bottom horizontal bar 14 and the bottom horizontal bar 14 so as to be placed on the top surface of the bottom coated paper 1 and disposed between the bottom horizontal bar 14 and the bottom horizontal bar 14, And a bottom wire 15 for allowing the base 14 to hang.

As a result, the bottom horizontal bar 14 suspended by the bottom wire 15 presses the bottom coated paper 1 downward by its own weight so that the supplied bottom coated paper 1 is stretched (stretched) It will help to be supplied.

The bottom feed guide means 12 includes a bottom feed guide member 12a disposed in the bottom feed case 13 and having a through hole therein to allow the bottom coated paper 1 to pass therethrough, A plurality of bottom feed idle rollers 12b which are disposed on the bottom feed guide member 12a and on which the bottom coated paper 1 passed through the bottom feed guide member 12a is supported, A bottom supply elevating bar 12c which is arranged between the bottom supply elevating bar 12c and the bottom supply elevating bar 12c so as to be vertically movable up and down, And a bottom support 12d.

As a result, the bottom feed elevator bar 12c, which is vertically elevated and lowered freely from the bottom support 12d, presses the bottom coated paper 1 downward by its own weight, thereby helping the bottom coated paper 1 to unfold .

1 and 2, the middle supply unit 20 includes a middle roller 21 disposed on the upper side of the bottom roller 11 and wound with a paper 2, And a middle supply guide means (22) for guiding the feeding of the fed paper (2).

The middle supply unit 20 includes a middle supply case 23 on which the middle roller 21 and the middle supply guide unit 22 are mounted and is disposed above the bottom supply case 13, A middle horizontal bar 24 disposed between the means 22 and a transport guide means 62 to be laid on the upper surface of the paper 2 and a middle horizontal bar 24 disposed between the middle supply bar 23 and the middle horizontal bar 24, And a middle wire 25 interconnecting the middle horizontal bar 24, i.e., allowing the middle horizontal bar 24 to hang.

As a result, the middle horizontal bar 24 suspended by the middle wire 25 presses the base paper 2 downward by its own weight, so that the supplied base paper 2 can be fed in a stretched (stretched) state .

The middle supply guide means 22 includes a middle supply guide member 22a disposed in the middle supply case 23 and having a through hole therein to allow the paper 2 to pass therethrough, A plurality of middle supply idle rollers 22b which are disposed in the center supply rollers 22a and support the paper 2 passed through the middle supply guide member 22a and a plurality of middle supply idle rollers 22b which are disposed between the middle supply idle rollers 22b in the middle supply case 23 A middle supply elevating bar 22c arranged to be placed on the upper surface of the raw paper 2 and a middle supporting bar 22c supporting the middle supply elevating bar 22c so that the middle supplying elevating bar 22c is vertically movable up and down 22d.

As a result, the middle supply elevating bar 22c, which is freely lifted up and down by the middle support body 22d, presses the base paper 2 downward by its own weight, thereby helping the base paper 2 to be unfolded.

1 and 2, the top supply unit 30 includes a top roller 31 disposed on the upper side of the middle roller 21 and wound with a top coated paper 3 having a release paper P on the bottom surface thereof, And a top supply guide means 32 for guiding the transport of the top coated paper 3 supplied from the top roller 31.

The top supply unit 30 includes a top supply case 33 on which the top roller 31 and the top supply guide means 32 are mounted and disposed on the middle supply case 23, A top horizontal bar 34 disposed between the means 32 and a conveyance guide means 62 to be described later and placed on the top surface of the top coated paper 3; , That is, a top wire 35 that allows the top horizontal bar 34 to hang.

As a result, the top horizontal bar 34 suspended by the top wire 35 presses the top coated paper 3 downward by its own weight so that the supplied top coated paper 3 is stretched (stretched) It will help to be supplied.

The top supply guide means 32 includes a top supply guide member 32a disposed in the top supply case 33 and having a through hole therein to allow the top coated paper 3 to pass therethrough, A plurality of top feed idler rollers 32b disposed in the top feeder case 33 and supported on the top coated paper 3 passed through the top feed guide member 32a, A top supply elevating bar 32c which is arranged between the top supply side elevating bar 32c and the top supply side elevating bar 32c so as to be placed on the top surface of the top coated paper 3, And a middle support body 32d.

As a result, the top supplying and elevating bar 32c which is freely lifted up and down by the top supporting member 32d presses the top coating paper 3 downward by its own weight, thereby helping the top coating paper 3 to be unfolded .

1 and 2, the bottom discharge unit 40 is provided to separate and discharge the release paper P from the bottom coated paper 1 when the bottom coated paper 1 is fed by the bottom feed guide means 12 A bottom air discharging member 41 for discharging air between the bottom coated paper 1 and the releasing paper P separated therefrom, a bottom discharging supporter 42 mounted on the bottom supplying case 13, A bottom discharge shaft 43 rotatably installed on the bottom discharge support 42, a plurality of bottom discharge rods 44 radially connected to the bottom discharge shaft 43 with respect to the center thereof, And a bottom discharge driving part 45 installed on the bottom discharge support 42 and transmitting rotational power to the bottom discharge shaft 43.

Here, the bottom discharge driving part 45 has a driving motor structure having a driving shaft connected to the bottom discharge shaft 43.

Therefore, after the operator separates the release paper P from the bottom coated paper 1 and fixes the release paper P to the bottom discharge rod 44, the bottom discharge port 45 is opened when the bottom coated paper 1 is fed from the bottom roller 11, And the releasing paper P is wound on the rotating bottom discharge rods 44. [

1 and 2, the top discharging unit 50 is a unit for discharging the release paper P from the top coated paper 3 when the top coated paper 3 is fed by the top feeding guide means 32 A top air discharging member 51 for discharging air between the top coated paper 3 and the releasing paper P separated therefrom; a top discharging supporter 52 mounted on the top supplying case 33; A top discharge shaft 53 which is rotatably mounted on the top discharge support 52, a plurality of top discharge rods 54 radially connected to the top discharge shaft 53 with respect to the center thereof, And a tower discharge outlet (55) installed in the tower discharge shaft (52) for transmitting rotational power to the tower discharge shaft (53).

The top outlet 55 is formed of a driving motor having a driving shaft connected to the top outlet shaft 53, like the bottom outlet 45.

Therefore, after the worker separates the release paper P from the top coating paper 3 and fixes the release paper P to the top discharge rod 54, the top discharge port 55 is opened when the top coated paper 3 is fed from the top roller 31, And the releasing paper P is wound on the rotating top discharging rods 54 at this time.

1 and 3, the base unit 60 is provided on the table 61 and on the table 61 to transport the bottom coated paper 1, the paper 2, the top coated paper 3, And a conveying guide unit 62 for guiding the conveying unit.

The conveying guide means 62 is configured such that the bottom coated paper 1, the base paper 2 and the top coated paper 3 having passed through the conveying guide member 71, which will be described later, And a plurality of transport idle rollers for supporting them.

1 and 3, the temporary hosing unit 70 is disposed on the table 61, and the bottom coated paper 1, the base paper 2, and the top coated paper 3 are stacked in this order And is provided on the table 61 so that the bottom coated paper 1, the base paper 2, and the top coated paper 3 are passed through to form a temporary sheet S1. And a spread member 72 for pressing and temporarily joining the top coated paper 3 and the bottom coated paper 1, the paper 2 and the top coated paper 3 stacked up and down.

The spread member 72 is disposed on the table 61 so that the bottom coated paper 1, the base paper 2 and the top coated paper 3 stacked on the table 61 are separated from the temporary combining unit 70 or the final combining unit And a roller elevating means 72b for elevating and lowering the pressure roller 72a up and down.

At this time, the roller elevating means 72b is composed of a bracket provided on the table 61 and a cylinder mounted on the bracket and having a piston which is moved up and down by selective supply of pneumatic or hydraulic pressure.

Accordingly, the pressing roller 72a is lowered by the piston movement of the cylinder to press the bottom coated paper 1, the base paper 2, and the top coated paper 3 which are stacked up and down to remove the air layer, Temporary liaison will be made.

1 and 3, the temporary stitch sheet S1 disposed on the table 61 and temporarily joined by the temporary stitching unit 70 is wound around the heating means 84 The bottom and top lapping rollers 81 and 82 face each other on the table 61 so as to be opposed to each other. The bottom lapping roller 81 is provided with a rotation power And a heating means 84 incorporated in the top lapping roller 82. As shown in FIG.

The 'temporary sheet S1' refers to a sheet form in which the bottom coated paper 1, the base paper 2, and the top coated paper 3 stacked up and down are temporarily temporarily joined together by the temporary combining unit 70 do.

The jig roller driving unit 83 includes a driving motor having a driving shaft connected to the bottom jumping roller 81.

The heating means 84 is formed of a heating rod type heating element which is heated by power supply, and is built in the top lapping roller 82.

Accordingly, the temporary sheet S1 is passed between the bottom and top lapping rollers 81 and 82, and finally the lapping is performed by the heating means 84 to form the coating sheet S2.

6 and 7, the clean unit 90 includes a clean case 91 disposed on the table 61, first and second cleaner units 91 and 92 disposed rotatably on both inner walls of the clean case 91, A bottom shaft 94 coupled to the bottom rollers 92 and 93 and connected to the first and second bottom rollers 92 and 93 and having a plurality of wash water spray holes on an outer circumferential surface thereof, A bottom rotating body 90A having a plurality of bottom support wires 95 connected between the bottom rollers 92 and 93 and radially arranged with respect to the center of the first and second bottom rollers 92 and 93, First and second top rollers 96 and 97 disposed on upper sides of the first and second bottom rollers 92 and 93 so as to be rotatable on both inner walls of the clean case 91, A top shaft 98 coupled to connect between the top rollers 96 and 97 and having a plurality of wash water spray holes on the outer circumferential surface thereof, And a top supporting wire 99 arranged radially with respect to the center of the first and second top rollers 96 and 97 for connecting the bottom rotating body 90A and the top rotating body 90A, And driving means 90C for transmitting the rotational power to the motor 90B.

The clean case 91 has a water tank structure having an inlet and an outlet for entering and exiting the coating sheet S2, and supernatant water is accommodated in the water tank.

The driving unit 90C may include a driving motor having a driven gear provided on the bottom shaft 94 of the bottom rotating body 90A and a driving gear engaged with the driven gear. It may be variously modified and changed within a range that satisfies the condition for rotating the rotating shaft 94.

Therefore, washing water (fresh water) supplied from the outside when the bottom rotating body 90A is rotated by the driving means 90C is sprayed through the nozzle having the spray hole in the form of spray, and the bottom and top rotors 90A, and 90B to be cleaned by spraying onto the upper and lower surfaces of the coating sheet S2.

The reason why the washing water is sprayed in a spray form is that the washing area per unit area can be widened by a predetermined pressure discharged from the nozzle even in a small amount.

1 and 6, the dry unit 100 is for drying the coated sheet S2, which is disposed on the table 61 and has been cleaned by the clean unit 90, A cooling housing 102 mounted in a manner to interconnect the upper ends of the two supports 101 and a plurality of holes vertically passing through the cooling housing 102, And a plurality of impellers 103 to be installed.

Here, each of the impellers 103 is rotated by receiving power from the outside, and the coating sheet S2 is dried through the introduced air.

The pair of cooling housings 102 are disposed on the upper and lower sides of the coating sheet S2 so that the coating sheet S2 is conveyed by the pair of cooling housings 102, So that the washing water and the like can be smoothly flowed down and discharged during drying.

1 and 6, the sheet discharging unit 110 includes a sheet discharging case 111 disposed on the table 61, a sheet discharging case 111 mounted on the sheet discharging case 111, And a sheet discharge guide means 113 for guiding the conveyance of the coating sheet S2 to the sheet roller 112 in the dry unit 100. [ .

The sheet discharge guide means 113 includes a plurality of idle rollers rotatably installed in the sheet discharge case 111 and supporting the coating sheet S2.

4 and 5, the filter unit 120 is disposed on the table 61, as shown in FIGS. 4 and 5, and the filter unit 120 is disposed on the table 61. The double- The top sheet 121 is separated from the lower side of the upper sheet 121 so as to cover the upper surface of the table 61, An inner flow hole 123 passing through between the upper body 121 and the lower body 122 to allow the coating sheet S2 to pass therethrough, a lower body 122 disposed on the upper body 121, A side wall body 124 mounted on the lower body 122 in such a manner as to close both sides of the lower body 122 and having a plurality of protrusions 124a on a horizontal path through which the coating sheet S2 passes, An opening 125 formed in a lower portion of the lower body 122 so as to be filled with a scattering material in the flow hole 123, It is formed in the dust collector 126, and the opening 125 for the mouth comprises a skirt (127) for preventing the coating liquid from flowing in the coated sheet (S2) to said dust collector (126).

The dust collector 126 has a structure in which an impeller rotated by a driving motor and a dust filter for adsorbing scattered material sucked by the rotation of the impeller are formed.

The skirt 127 is sloped downward from the opening 125 to the upper side of the inlet side of the dust collector 126 so that the coating solution flows naturally and flows to be guided to the outlet side of the opening 125.

Each of the protrusions 124a of the side wall member 124 has a substantially V-shaped cross section and is formed so that when both end portions of the coating sheet S2 pass over the respective protrusions 124a, And performs a function of scraping off the coating liquid flowing to both ends.

The specific embodiments of the present invention have been described above. It is to be understood, however, that the spirit and scope of the invention are not limited to these specific embodiments, but that various changes and modifications may be made without departing from the spirit of the invention, If you are a person, you will understand.

Therefore, it should be understood that the above-described embodiments are provided so that those skilled in the art can fully understand the scope of the present invention. Therefore, it should be understood that the embodiments are to be considered in all respects as illustrative and not restrictive, The invention is only defined by the scope of the claims.

10: Bottom supply unit
11: bottom roller
12: Bottom supply guide means
12a: a bottom feed guide member 12b: a bottom feed idler roller
12c: bottom supply elevating bar 12d: bottom support
13: Bottom supply case
14: Bottom horizontal bar
15: Bottom wire
20: Middle supply unit
21: Middle roller
22: middle supply guide means
22a: middle supply guide member 22b: middle supply idler roller
22c: middle supply lift bar 22d: middle support
23: Middle supply case
24: Middle horizontal bar
25: middle wire
30: Top supply unit
31: Top roller
32: Top supply guide means
32a: Top feed guide member 32b: Top feed idler roller
32c: tower supply elevation bar 32d: tower support
33: Top supply case
34: Top horizontal bar
35: Top wire
40: Bottom discharge unit
41: the bottom air discharge member
42: bottom discharge support
43: Bottom discharge shaft
44: bottom discharge rod
45:
50: Top discharge unit
51: Top air discharge member
52: Top discharge support
53: Top discharge shaft
54: Top discharge rod
55: Top outlet
60: Base unit
61: Table
62: conveying guide means
70: temporary lobe unit
71: conveying guide member
72: Missing spread
72a: pressure roller 72b: roller elevating means
80: final laminating unit
81: Bottom lap roller
82: Top Lap Roller
83: Lap roller driving part
84: Heating means
90: Clean unit
91: Clean case
92, 93: first and second bottom rollers
94: bottom shaft
95: Bottom support wire
96, 97: first and second top rollers
98: Top shaft
99: Top support wire
100: Dry unit
101: Support
102: Cooling housing
103: Impeller
110: sheet discharging unit
111: sheet discharge case
112: seat roller
113: sheet discharge guide means
120: Filter unit
121: Upper body
122:
123: Distribution hole
124: side wall
124a:
125: opening
126: Dust collector

Claims (1)

A bottom roller 11 wound with a bottom coated paper 1 having a releasing paper P on its upper surface and a bottom feeding guide means 12 guiding the transport of the bottom coated paper 1 fed from the bottom roller 11 A bottom feeder unit 10 including;
A middle roller 21 disposed on the upper side of the bottom roller 11 and wound with a paper 2 and a middle supply guide means 22 for guiding the transfer of the paper 2 fed from the middle roller 21, (20);
A top roller 31 disposed on the upper side of the middle roller 21 and wound with a top coated paper 3 having a release paper P on the lower surface thereof, A top supply unit (30) including a top supply guide means (32) for guiding the top supply unit (32);
A bottom discharge unit 40 for separating and discharging the release paper P from the bottom coated paper 1 when the bottom coated paper 1 is fed by the bottom feed guide means 12;
A top discharge unit 50 for separating and discharging the release paper P from the top coated paper 3 when the top coated paper 3 is fed by the top feed guide means 32;
A base unit 60 including a table 61 and transport guide means 62 disposed on the table 61 for guiding the transport of the bottom coated paper 1, the paper 2 and the top coated paper 3;
A temporary lamination unit 70 which is disposed on the table 61 and temporarily joined to form a temporary sheet S1 with the bottom coated paper 1, the paper 2 and the top coated paper 3 stacked in this order );
A temporary lamination unit 80 disposed on the table 61 and temporarily joined by the temporary lamination unit 70 so as to be laminated by the heating means 84 to form a coating sheet S2 );
A clean unit (90) disposed on the table (61) for cleaning the upper and lower surfaces of the coated sheet (S2) finally joined by the final laminated unit (80);
A dry unit (100) disposed on the table (61) for drying the coated sheet (S2) cleaned by the clean unit (90); And
A sheet roller 112 which is disposed on the table 61 and on which the coated sheet S2 dried by the dry unit 100 is wound and which is coated with the sheet roller 112 in the dry unit 100, And a sheet discharging unit (110) including sheet discharging guide means (113) for guiding conveyance of the sheet (S2)
The clean unit 90 is cleaned by a nozzle for discharging the fresh water to a predetermined pressure, the fresh water is sprayed in a spray form to be cleaned,
The clean unit (90)
A first bottom roller 92 and a second bottom roller 93 rotatably installed on both inner walls of the clean case 91 and a second bottom roller 93 disposed on the table 61. The first bottom roller 93, 92 and the second bottom roller 93 and has a plurality of wash water spray holes on the outer circumferential surface thereof, a bottom shaft 94 connected to the first bottom roller 92 and the second bottom roller 93, A bottom rotating body 90A having a plurality of bottom support wires 95 connected between the first and second bottom rollers 92 and 93 and arranged radially with respect to the center of the first and second bottom rollers 92 and 93;
A first top roller 96 and a second top roller 97 which are rotatably installed on both inner walls of the clean case 91 and disposed on the upper side of the first bottom roller 92 and the second bottom roller 93, A top shaft 98 coupled to the first top roller 96 and the second top roller 97 so as to connect the first top roller 96 and the second top roller 97 and having a plurality of wash water spray holes on the outer circumferential surface thereof, A cage assembly 90B having a top support wire 99 connected between the second top rollers 97 and arranged radially with respect to the center of the first top rollers 96 and the second top rollers 97; And
And driving means (90C) for transmitting rotational power to the bottom rotating body (90A) or the cramp body (90B)
The dry unit (100)
And a drying unit 60 for drying the coating sheet S2 which is disposed on the table 61 and washed by the clean unit 90. The drying unit 60 includes two supports 101 erected on the table 61, And a plurality of impellers (103) rotatably installed in a plurality of holes passing through the cooling housing (102). The cooling housing (102)
The impeller 103 is rotated by receiving power from the outside, and the coating sheet S2 is dried through the introduced air,
The pair of cooling housings 102 are disposed on the upper and lower sides of the coating sheet S2 so that the pair of cooling housings 102 are spaced apart from each other in the direction in which the coating sheet S2 is conveyed. And the gap is gradually spaced apart from each other.

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