KR101887608B1 - Supplying apparatus for resin solution and resin coater system including the same - Google Patents

Abstract

The resin solution supply device according to an embodiment of the present invention is provided on an upper part of a coating roll, and an inflow space for selectively inflowing a fluid is formed therein, and the fluid is supplied to the coating roll through a nozzle A supplyable nozzle housing; And a filtration member disposed in the flow space and filtering the foreign substances contained in the fluid to supply the filtrate to the nozzle orifice.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin solution supply apparatus and a resin coating apparatus including the resin solution supply apparatus.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin solution supplying apparatus and a resin coating apparatus including the same, and more particularly, to a resin solution supplying apparatus and a resin coating apparatus including the resin solution supplying apparatus.

In order to perform the resin coating operation on the surface of the steel sheet in the plating process, a resin coating operation is performed on the surface of the steel sheet by using a coating roll of a coater facility, and a resin coated steel sheet coated with the resin solution is oven- And then cooled in a water bath. It is known that the coated resin-coated steel sheet is excellent in corrosion resistance without containing lead components, and particularly excellent in corrosion resistance after processing.

The coating roll transfers the resin solution from the drip pan containing the resin solution to the steel sheet to perform the resin coating operation. The coating roll includes a pickup roll partially immersed in the drip pan, a transfer roll rotating in contact with the pickup roll, and an application roll rotating in contact with the transfer roll. The resin solution is sequentially transferred from the drip pan to the pickup roll, the transfer roll, and the applicator roll, and the resin coating solution is coated on the surface of the steel plate adhered to the applicator roll.

Korean Patent Publication No. 10-2004-0026022 (published on Mar. 27, 2004)

SUMMARY OF THE INVENTION An object of the present invention is to provide a resin solution supply apparatus and a resin coating apparatus including the resin solution supply apparatus capable of effectively supplying a resin solution to a coating roll.

Other objects of the present invention will become more apparent from the following detailed description and drawings.

A resin solution supply device according to an embodiment of the present invention is disposed on a top of a coating roll and has a fluid space in which a fluid is selectively introduced therein is formed and the fluid is supplied to the coating roll through a nozzle hole formed at the bottom A supplyable nozzle housing; And a filtration member disposed in the flow space and filtering the foreign substances contained in the fluid to supply the filtrate to the nozzle orifice.

The fluid may include a resin solution or a cleaning solution, and either the resin solution or the cleaning solution may be selectively introduced into the flow space.

Wherein the nozzle housing is disposed to extend along a longitudinal direction of the coating roll, the flow space is disposed to extend from one end of the nozzle housing toward the other end along a longitudinal direction of the nozzle housing, And is formed along the longitudinal direction of the nozzle housing on the lower side so as to communicate the outside with the flow space.

The resin solution supply device includes a resin solution supply pipe connected to one end of the nozzle housing and capable of supplying the resin solution to the fluid space; A cleaning liquid supply pipe connected to the other end of the nozzle housing to supply the cleaning liquid to the flow space; A resin solution supply valve disposed on the resin solution supply pipe to regulate the opening of the resin solution supply pipe; And a cleaning liquid supply pipe disposed on the cleaning liquid supply pipe to regulate the opening of the cleaning liquid supply pipe.

Wherein the nozzle hole is formed to have a length shorter than the length of the flow space, and at one end of the nozzle housing, a resin solution supply port communicating the flow space and the resin solution supply pipe communicates with the nozzle hole, And a cleaning liquid supply port communicating with the flow space and the cleaning liquid supply pipe may be formed at the other end of the nozzle housing on the outer side of the nozzle opening with respect to the nozzle opening.

The resin solution supply device includes a discharge pipe connected to an end of the one end of the nozzle housing to discharge the cleaning solution in the flow space to the outside; And a discharge valve disposed on the discharge pipe and capable of regulating the opening degree of the discharge pipe, and the other end of the discharge pipe can be disposed outside the coating roll with respect to the coating roll.

Wherein the resin solution supply device comprises a brush member which is disposed so as to be rotatable in close contact with an inner circumferential surface of the filtration member forming the screw space, a cylindrical screw space is formed in the filter member along a longitudinal direction of the filter member, As shown in FIG.

Wherein the resin solution supply device comprises: a screw shaft extending along the longitudinal direction of the filter member and rotatably disposed in the screw member; And a propeller member for rotating the screw shaft by the flow of the fluid in the flow space, wherein the brush member is connected to the screw shaft and rotates together with the screw shaft.

Wherein the screw shaft is provided to have a length longer than the length of the screw space, each end of the screw shaft is disposed outside the screw space, and the propeller member is disposed between the resin solution supply port and the filter member 1 propeller member; And a second propeller member disposed between the cleaning solution supply port and the filtration member.

Wherein the resin solution supply device is provided with a switching member for providing a switching driving force so that the nozzle housing can switch between a supply position of the upper portion of the coating roll and a standby position spaced upward from the supply position; A flexible resin solution supply pipe arranged to be able to expand and contract on the resin solution supply pipe; And a flexible cleaning liquid supply pipe arranged to be able to expand and contract on the cleaning liquid supply pipe.

A resin coating apparatus according to an embodiment of the present invention includes: a plurality of coating rolls whose outer circumferential surfaces rotate in contact with each other; A nozzle housing disposed at an upper portion of the coating roll and extending along a longitudinal direction of the coating roll, the nozzle housing having a nozzle hole for supplying a fluid selected from a resin solution or a cleaning solution toward the coating roll; And a recovery unit disposed under the coating roll, the recovery unit being capable of selectively recovering the resin solution and the cleaning solution.

Wherein the coating roll includes a pickup roll, a transfer roll, and an applicator roll which are disposed in close contact with each other, and the nozzle hole supplies the fluid to a close contact portion between the pickup roll and the transfer roll, The pick-up roll, the transfer roll, and the applicator roll, and may be coated on the surface of the steel sheet closely attached to the applicator roll.

Wherein the nozzle housing has a fluid space extending in a longitudinal direction of the nozzle housing, the resin coating facility having one end connected to one end of the nozzle housing and the other end connected to a resin solution tank A resin solution supply pipe connected to the resin solution tank to supply a flow path of the resin solution from the resin solution tank to the flow space; A resin solution supply valve disposed on the resin solution supply pipe to adjust a supply amount of the resin solution; A cleaning liquid supply pipe having one end connected to the other end of the nozzle housing and the other end connected to a cleaning liquid tank containing the cleaning liquid to provide a path for moving the cleaning liquid from the cleaning liquid tank to the flow space; A cleaning liquid supply valve disposed on the cleaning liquid supply pipe to adjust a supply amount of the cleaning liquid; A filtering member disposed in the flow space to filter a foreign substance contained in the fluid and supply the filtrate to the nozzle opening; And a control unit for controlling the resin solution supply valve and the cleaning solution supply valve to selectively supply the resin solution or the cleaning solution to the flow space.

The recovering unit includes a recovered wash liquid tank for recovering and containing the wash liquid discharged from the flow space; A first recovering member having a first recovering space in which an upper part is opened and formed in pairs on both sides of both end portions of the coating roll and the transfer roll; A main recovery pipe connected at one end to the first recovering member to provide a path for the fluid recovered in the first recovering space; A resin solution recovery pipe branched from the other end of the main recovery pipe and extending to the resin solution tank; A washing liquid recovery pipe branched from the other end of the main recovery pipe and extending to the recovered wash liquid tank; A resin solution recovery valve disposed on the resin solution recovery pipe and capable of adjusting the opening of the resin solution recovery pipe; And a cleaning liquid recovery valve disposed on the cleaning liquid recovery pipe and capable of adjusting the opening degree of the cleaning liquid recovery pipe, wherein the control unit is connected to the resin solution recovery valve and the cleaning liquid recovery valve, The opening degree of the recovery valve can be controlled.

Wherein the control unit controls the resin solution supply valve and the cleaning solution supply valve so that any one of the resin solution supply valve and the cleaning solution supply valve is selectively opened and when the resin solution supply valve is opened, And controls the cleaning liquid recovery valve to be closed so that the cleaning liquid recovery valve is opened when the cleaning liquid supply valve is opened and the cleaning liquid recovery valve is closed.

Wherein the recovery unit further comprises a second recovery member having a second recovery space in which an upper portion is opened and the first recovery member is arranged to be received in the second recovery space, A discharge pipe connected to one end side of the connected nozzle housing to discharge the cleaning liquid in the flow space to the second collection space; And a discharge valve disposed on the discharge pipe and capable of regulating the opening degree of the discharge pipe, wherein the control unit controls the discharge valve such that the discharge pipe is opened when the cleaning liquid supply pipe is opened, The discharge valve can be controlled so that the discharge pipe is closed when the solution supply pipe is opened.

Wherein the recovery unit is provided with a checker hose extending from the second recovering member toward the recovered washer fluid tank and provided with a movement path for moving the wash fluid discharged from the second recovering member to the recovered wash fluid tank from the second recovering member, And may further include piping.

The resin solution supply device according to the embodiment of the present invention and the resin coating equipment including the resin solution effectively filter the impurities contained in the resin solution and supply the filtered solution to the coating roll, .

In addition, the resin solution supplying device and the resin coating equipment including the resin solution supplying device according to the embodiment of the present invention can effectively recover and reuse the resin solution discharged from the coating roll, thereby effectively reducing the manufacturing cost of the coated steel.

1 is a schematic view showing an example of a resin coating facility.
2 and 3 are views schematically showing a resin solution supply apparatus according to an embodiment of the present invention.
4 is a schematic view showing the relationship between a resin solution supply device and a coating roll according to an embodiment of the present invention.
5 is an enlarged view of one end side of a nozzle housing of a resin solution supply apparatus according to an embodiment of the present invention.
FIG. 6 is an enlarged view of the nozzle side of the nozzle housing of the resin solution supply device according to the embodiment of the present invention.
7 is a schematic view of a resin coating facility according to an embodiment of the present invention.
8 is a view schematically showing a case where the nozzle housing is located at a standby position.
9 is a view schematically showing that the nozzle housing is located at a supply position and supplies the resin solution.
10 is a view schematically showing that the nozzle housing is located at the supply position and supplies the cleaning liquid.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin solution supply apparatus and a resin coating apparatus including the resin solution supply apparatus, and embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments of the present invention can be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described below. The embodiments are provided to explain the present invention to a person having ordinary skill in the art to which the present invention belongs. Accordingly, the shape of each element shown in the figures may be exaggerated to emphasize a clearer description. In addition, the connection referred to below should be construed to include not only the case where two components are directly connected but also the case where they are indirectly connected through another medium.

1 is a schematic view showing an example of a resin coating facility.

As shown in Fig. 1 (a), a resin coating installation 1 for performing a resin coating on the surface of a steel sheet S comprises coating rolls 10, 10 ' The coating rolls 10 and 10 'are provided with a pickup roll 40 (or 40') partially submerged in the drip pan 40 or 40 ' The transfer rolls 15 and 15 'rotating in contact with the pick-up rolls 17 and 17' and the application rolls 13 and 13 'rotating in contact with the transfer rolls 15 and 15' The resin solution is sequentially transferred from the drip pan 40, 40 'to the pick rolls 17, 17', the transfer rolls 15, 15 'and the application rolls 13, 13' The steel plate S is closely adhered to the applicator rolls 13 and 13 'so that the resin solution is coated on the surface of the steel plate S. The steel plate S is pressed between the backup roll 20 and the applicator roll 13 The resin solution is coated on the upper surface of the steel sheet S while being primarily passed, Steel sheet has passed through the trawl (30) (S) is a resin solution is coated on the steel sheet (S) by the lower surface K Troll application 13 'on the opposite side.

The resin solution may include a metal component, and a resin film or a foreign gel or the like may be formed on the upper side of the resin solution contained in the drip pan 40 or 40 'by the metal component. These resin coatings or foreign gels can be transferred to the surface of the steel sheet through the coating rolls 10 and 10 '. As shown in FIG. 1 (b), the surface of the steel sheet S Surface defects such as the resin pickup A may occur. Therefore, it is necessary to stop the operation of the resin coating facility 1 and to perform work for removing the resin film or the foreign gel or the like. The resin solution is accommodated in the drip pan 40, 40 ', and the partially unloaded pickup rolls 17, 17' are rotated by the drip pan 40, 40 'so that the transfer rolls 15, 15' When the resin solution is supplied to the trolls 13 and 13 ', a problem arises that an expensive resin solution is excessively used in the resin coating operation. Accordingly, the present invention provides a resin solution supply device 3 and a resin coating facility 5 including the resin solution supply device 3 that can effectively prevent the generation of a resin film or a foreign gel, and can effectively reduce the amount of the resin solution used do.

FIGS. 2 and 3 are views schematically showing a resin solution supply apparatus according to an embodiment of the present invention. FIG. 4 is a schematic view showing the relationship between a resin solution supply apparatus and a coating roll according to an embodiment of the present invention to be. FIG. 5 is an enlarged view of one end side of a nozzle housing of a resin solution supply apparatus according to an embodiment of the present invention, and FIG. 6 is an enlarged view of a nozzle housing of a resin solution supply apparatus according to an embodiment of the present invention. Fig.

2 to 6, the resin solution supply device 3 of the present invention includes a nozzle housing 100 disposed in parallel with the coating roll 10. [ It is preferable that the nozzle housing 100 is disposed so as to extend along the longitudinal direction of the coating roll 10 and the nozzle housing 100 is arranged such that the length of the nozzle housing 100 is longer than the length of the coating roll 10. In the nozzle housing 100, a flow space 102 is formed along the longitudinal direction of the nozzle housing 100, and any fluid selected from a resin solution or a cleaning solution flows into the flow space 102. A nozzle hole 104 is formed in the lower portion of the nozzle housing 100 along the longitudinal direction of the nozzle housing 100. The fluid introduced into the flow space 102 flows through the nozzle hole 104 into the coating roll 10 .

In the flow space (102), a filter member (110) capable of filtering foreign matters contained in the resin solution is disposed. The filter member 110 may be formed in a net structure, but is not limited thereto. The filter member 110 may include any structure capable of filtering a foreign substance contained in the resin solution. The fluid introduced into the flow space 102 passes through the filtration member 110 and is supplied to the coating roll 10 so that the foreign substances contained in the resin solution can be effectively filtered and supplied to the coating roll 10.

A resin solution supply pipe 120 is connected to one end of the nozzle housing 100. The resin solution supply pipe 120 is disposed so as to extend from the resin solution tank 400 to be described later to one end of the nozzle housing 100 so that the resin solution contained in the resin solution tank 400 is moved toward the flow space 102 To provide a path of travel. A resin solution supply valve 124 is disposed on the resin solution supply pipe 120 and the inflow amount of the resin solution flowing into the flow space 102 by the resin solution supply valve 124 is adjusted. On the resin solution supply pipe 120, a flexible and flexible resin solution supply pipe 122 may be disposed.

A cleaning liquid supply pipe 130 is connected to the other end of the nozzle housing 100. The cleaning liquid supply pipe 130 is disposed so as to extend from the cleaning liquid tank 500 to be described later toward one end of the nozzle housing 100 so that the resin solution contained in the cleaning liquid tank 500 moves toward the flow space 102, Lt; / RTI > A cleaning liquid supply valve 134 is disposed on the cleaning liquid supply pipe 130 and the inflow amount of the cleaning liquid introduced into the flow space 102 by the cleaning liquid supply valve 134 is adjusted. On the cleaning liquid supply pipe 130, an expandable flexible cleaning liquid supply pipe 132 may be disposed.

The outer circumferential surface of the filtration member 110 is preferably formed in a shape corresponding to the shape of the inner circumferential surface of the housing member 100 forming the flow space 102 and the screw space 112 Is formed into a cylindrical shape having a through-hole formed therein. A screw shaft 150 extending along the longitudinal direction of the filtration member 110 is disposed in the screw space 112 and a propeller member 156 and a brush member 154 connected to the screw shaft 150 are disposed in the flow space 102 As the fluid flows through the screw shaft 150.

3, the filtration member 110 is manufactured to have a length l ₂ longer than the length l _{1 of the} nozzle orifice 104 so that the fluid supplied through the nozzle orifice 104 is filtered So that it is filtered by the member (100). The screw shaft 150 is manufactured to have a length l ₃ longer than the length l ₂ of the filtration member 110 so that the tips of the screw shaft 150 are located outside the filtration member 110 Is preferred.

At one end of the nozzle housing 100, a resin solution supply port 106 communicating the flow space 102 and the resin solution supply pipe 120 is formed. The resin solution supply port 106 is preferably formed on the outer side of the nozzle orifice 104 with respect to the nozzle orifice 104. This is to ensure that the resin solution flowing through the resin solution supply port 106 is efficiently filtered by the filter member 110 and supplied through the nozzle opening 104. [

At the other end of the nozzle housing 110, a cleaning liquid supply port 108 for communicating the flow space 102 and the cleaning liquid supply pipe 130 is formed. The cleaning liquid supply port 108 is preferably formed on the outer side of the nozzle opening 104 with respect to the nozzle opening 104. This is to allow the washing liquid flowing through the washing liquid supply unit 108 to be discharged to the nozzle opening 104 through the filtration member 110. The washing liquid is supplied to the inside of the screw space 112 through the discharge pipe 140, In order to effectively emit.

The propeller member 156 includes a first propeller member 156a disposed on the screw shaft 150 on the resin solution supply port 106 side and a second propeller member 156a disposed on the screw shaft 150 on the cleaning solution supply port 108 side. Member 156b. The first propeller member 156a and the second propeller member 156b are rotated by these fluids when the resin solution or the washing liquid flows into the flow space 102 so that the screw shaft 150 rotates do. It is preferable that the first propeller member 156a and the second propeller member 156b are arranged to rotate in the same direction with respect to the moving direction of the fluid. The first propeller member 156a may be disposed at a position between the filtration member 110 and the resin solution supply port 106 and the second propeller member 156b may be disposed at a position between the filtration member 110 and the resin solution supply port 106. [ May be disposed at a position between the member (110) and the cleaning liquid supply port (108).

A first bearing block 162 may be disposed on one side of the first propeller member 156a to assist in rotating the screw shaft 150. A first fluid passage 163 may be formed in the first bearing block 162, So as to assist smooth fluid movement within the flow space 102. A second bearing block 164 may be disposed on one side of the second propeller member 156b to assist in rotating the screw shaft 150 and a second fluid passage 165 may be provided in the second bearing block 164 So as to assist smooth fluid movement within the flow space 102. A third bearing block 166 to which the tip of the screw shaft 150 is connected may be disposed at the other end of the nozzle housing 100. The first bearing block 162, the second bearing block 164, The screw shaft 150 can be effectively supported and rotated by the bearing block 165. [

The brush member 154 is arranged to rotate together with the screw shaft 150 in the screw space 112 and is disposed so that its tip is in close contact with the inner circumferential surface of the filtration member 110. The brush members 154 may be disposed in plural and spaced apart from each other and the wing plate 152 may be disposed on the screw shaft 150 to connect the screw shaft 150 and the brush member 154 . The wing plate 152 may be inclined with respect to the axial direction of the screw shaft 150 to assist the rotation of the screw shaft 150 in accordance with the flow of the fluid. When the plurality of wing plates 152 are arranged, The plates 152 are preferably arranged to maintain the same inclination angle with respect to the axial direction of the screw shaft 150. The brush member 154 rotates together with the screw shaft when the fluid moves. The brush member 154 is continuously brushed on the inner circumferential surface of the filtration member 110 to guide the foreign matter contained in the resin solution to the inner circumferential surface of the filtration member 110. Can be effectively prevented.

A discharge pipe 140 may be connected to an end of one end of the nozzle housing 100 to which the resin solution supply pipe 120 is connected. The discharge pipe 140 is preferably disposed to communicate with the lower side of the flow space 102 and a discharge valve 142 may be disposed on the discharge pipe 140 to control the opening degree of the discharge pipe 140. When the cleaning liquid supply valve 134 is opened and the cleaning liquid flows into the flow space 102, a part of the cleaning liquid introduced into the flow space 102 is discharged to the outside of the flow space 102 through the nozzle opening 104 The other part of the washing liquid flowing into the flow space 102 is discharged to the outside of the flow space 102 through the discharge pipe 140 after passing through the screw space 112. That is, the foreign matter that has been filtered by the filtration member 110 can be effectively discharged to the outside of the flow space 102 together with the cleaning liquid through the discharge pipe 140.

4, the resin solution supply device according to an embodiment of the present invention is a device in which the fluid passing through the nozzle opening 104 at a position B where the pickup roll 17 and the transfer roll 15 are in close contact with each other As shown in FIG. In general, the surface of the transfer roll 15 is formed of a material such as rubber, and the surface of the pickup roll 17 and the applicator roll 13 is formed of a material such as stainless steel. The pickup roll 17, The resin coating efficiency can be effectively increased when the resin solution is supplied to the position B between the rolls 15 and the cleaning efficiency of the transfer roll 15 can be effectively increased when the cleaning liquid is supplied to the position B. The first recovering members 210a and 201b may be disposed in pairs under the lower portion of the coating roll 10 and particularly below both end portions of the pickup roll 17 and the transfer roll 15, And the resin solution dropped from both end sides of the transfer roll 15 can be recovered.

The resin solution supply device 3 according to the embodiment of the present invention is connected to the nozzle housing 100 so that the nozzle housing 100 moves from the supply position Y and the supply position Y above the coating roll 10 to the upper And a switching member 170 that provides a switching driving force so as to be able to switch between the standby positions X that are spaced apart from each other. The switching member 170 may be a cylinder member, but is not necessarily required to include the switching member 170, and includes all means capable of providing a lift driving force of the nozzle housing 100. When the nozzle housing 100 is moved to the supply position Y by the switching member 170, the flexible resin solution supply pipe 122 and the flexible cleaning solution supply pipe 132 are extended and the nozzle housing 100 is moved to the standby position When moving to the position (Y), the flexible resin solution supply pipe 122 and the flexible cleaning solution supply pipe 132 can be shortened.

7 is a schematic view of a resin coating facility according to an embodiment of the present invention.

As shown in Fig. 7, the resin coating facility 5 according to an embodiment of the present invention includes the main configuration of the resin solution supply device 3 described above, so that the description of the corresponding configuration will be omitted .

The resin solution tank 400 is filled with a resin solution and the resin solution supply pipe 120 is disposed so as to extend from the resin solution tank 400 toward the nozzle housing 100, The solution is supplied to the nozzle housing 100. A resin solution pump 126 may be disposed on the resin solution supply pipe 120 to assist smooth supply of the resin solution. The cleaning liquid is supplied to the nozzle housing 100 through the cleaning liquid supply pipe 130 so that the cleaning liquid is supplied from the cleaning liquid tank 500 to the nozzle housing 100, . On the cleaning liquid supply pipe 130, a cleaning liquid pump 136 may be disposed to assist smooth supply of the cleaning liquid. The recovered wash fluid tank 260 recovers the wash fluid discharged from the fluid space 102, and the wash fluid contained in the recovered wash fluid tank 260 may be discarded or reused through a purification operation.

A second recovering member 220 is disposed below the coating roll 10. The second recovered member 220 is formed with a second recovered space 220 'having an open top and an open upper portion of the second recovered space 220' for effective cleaning liquid recovery is larger than the coated roll 10 ' It is preferable to have an area. The first recovering members 210a and 210b are disposed in the second water collecting space 220 'and the first recovering members 210a and 210b are disposed under the lower part between the pickup roll 17 and the transfer roll 15, Roll 17 and the transfer roll 15, respectively. The first recovering spaces 210a and 210b are opened to the upper ends of the first recovering members 210a and 210b and the fluids dropped from both ends of the pickup rolls 17 and the transfer rolls 15 And may be recovered through the first collection space 210a '210b'. In addition, the discharge pipe 140 is arranged to discharge the washing liquid to the second collecting space 220 ', and the washing liquid discharged through the discharge pipe 140 can be received in the second collecting space 220'.

The resin recovery pipe 240 and the cleaning liquid recovery pipe 250 are connected to the first recovery members 210a and 210b through the main recovery pipe 230 communicating with the first recovery spaces 210a 'and 210b' Branched from the recovery pipe 230 and extend to the resin solution tank 400 and the recovered wash liquid tank 260, respectively. A resin solution recovery valve 242 capable of regulating the opening of the resin solution recovery pipe 240 is disposed on the resin solution recovery pipe 240 and a cleaning liquid recovery valve 250 is disposed on the cleaning liquid recovery pipe 250, A recovery valve 252 is disposed. The piping 270 is disposed so as to extend from one side of the second recovering member 220 toward the recovered wash liquid tank 260 and the wash liquid discharged into the second recovered space 220 ' To the recovered wash liquid tank (260). A check valve 272 capable of adjusting the opening of the check hose pipe 270 may be disposed on the check hose pipe 270.

The control unit 300 is connected to the resin solution supply valve 124, the cleaning solution supply valve 134, the discharge valve 142, the resin solution recovery valve 242 and the cleaning solution recovery valve 252, Controls the opening of the valve 124, the cleaning liquid supply valve 134, the discharge valve 142, the resin solution recovery valve 242, and the cleaning liquid recovery valve 252.

More specifically, when the resin solution supply valve 124 is opened, the control unit 300 controls the cleaning solution supply valve 124, the discharge valve 142 and the cleaning solution recovery valve 252 to close, (242). The resin solution supplied into the fluid space 102 through the resin solution supply pipe 120 is filtered by the filtration member 110 and supplied to the coating roll 10 through the nozzle aperture 104, 10 can be recovered to the resin solution tank 400 again by the first recovering members 210a, 210b.

The control unit 300 controls the resin solution supply valve 124 and the resin solution recovery valve 242 to be closed so that the discharge valve 142 and the cleaning liquid recovery valve 252 are closed when the cleaning liquid supply valve 134 is opened, . A portion of the cleaning liquid supplied through the cleaning liquid supply pipe 130 into the flow space 102 is discharged to the coating roll 10 through the nozzle orifice 104 while the other portion is discharged with the foreign matter in the flow space 102 And is discharged through the discharge valve 140. The cleaning operation of the surface of the coating roll 10 can be performed by the cleaning liquid discharged to the coating roll through the nozzle opening 104. The cleaning liquid having passed through the coating roll is discharged to the first recovery spaces 210a 'and 210b' And is accommodated in the space 220 '. Further, the cleaning liquid discharged from the flow space 102 through the discharge pipe 140 is received in the second recovery space 220 '. The washing liquid contained in the first water collection space 210a '210b' may be discharged to the recovery washing liquid tank 260 through the washing liquid recovery pipe 250. The washing liquid contained in the second water collection space 220 'may be recovered to the recovery wash tank 260 through the inspected water pipe 270.

FIG. 8 is a view schematically showing the case where the nozzle housing is located at a standby position, FIG. 9 is a view schematically showing that the nozzle housing is located at a supply position to supply a resin solution, and FIG. And the cleaning liquid is supplied.

8, when the nozzle housing 10 is located at the standby position X, the flexible resin solution supply pipe 122 and the flexible cleaning solution supply pipe 132 are shortened and the resin solution supply valve 124 and the cleaning liquid supply valve 134 are in a closed state.

9, when the nozzle housing 10 is positioned at the supply position Y by the extension of the switching member 170, the flexible resin solution supply pipe 122 and the flexible cleaning solution supply pipe 132 also Lt; / RTI > As the control unit 300 opens the resin solution supply valve 124, the resin solution moves along the flow space 102 inside the nozzle housing 100, and the resin solution filtered by the filter member 110 Is supplied to the coating roll (10) through the nozzle opening (104). The first propeller member 156a is rotated by the flow of the resin solution so that the brush member 154 rotates to brush the inner circumferential surface of the filtration member 110. [ The foreign matter adhering to the inner circumferential surface of the filtration member 110 by the rotation of the brush member 154 floats in the screw space 112 and the flow space 102. [

10, when the nozzle housing 10 is positioned at the supply position Y by the extension of the switching member 170, the flexible resin solution supply pipe 122 and the flexible cleaning solution supply pipe 132 also Lt; / RTI > When the control unit 300 opens the cleaning liquid supply valve 134 and the discharge valve 142 and closes the resin solution supply valve 124, the supply of the resin solution into the flow space 102 is stopped, Is introduced into the flow space (102). The cleaning liquid flows from the cleaning liquid supply port 108 toward the discharge pipe 140 side and flows toward the discharge pipe 140 side together with the foreign matter in the filtration member 110. A part of the cleaning liquid is discharged downward through the nozzle opening 104, and another part of the cleaning liquid is discharged together with the foreign object through the discharge piping 140.

Accordingly, the resin solution supply apparatus 3 according to the embodiment of the present invention and the resin coating facility 5 including the resin solution apparatus effectively filter the foreign substances contained in the resin solution and supply the same to the coating roll 10, The deterioration of the quality of the steel sheet S can be effectively prevented.

In addition, the resin solution supplying device 3 and the resin coating equipment 5 including the resin solution supplying device 3 according to an embodiment of the present invention can effectively recover and reuse the resin solution discharged from the coating roll 10, ) Can be effectively reduced.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, Therefore, the technical idea and scope of the claims set forth below are not limited to the embodiments.

1, 5: resin coating facility 3: resin solution supply apparatus 10, 10 ': coating roll
13, 13 ': Application roll 15, 15': Transfer roll 17, 17 ': Pickup roll
20: backup roll 30: lift roll 40, 40 ': drip pan
100: nozzle housing 102: flow space 104: nozzle opening
106: resin solution supply port 108: cleaning liquid supply port 110: filtration member
112: screw space 120: resin solution supply pipe
122: flexible resin solution supply pipe 124: resin solution supply valve
130: cleaning liquid supply pipe 132: flexible cleaning liquid supply pipe
134: Wash liquid supply valve 140: Discharge piping 142: Discharge valve
150: screw shaft 152: wing plate 154: brush member
156a: first propeller member 156b: second propeller member 170: switching member
210a, 210b: First recovering member 210a '210b': First recovering space
220: second recovery member 220 ': second recovery space 230: main recovery pipe
232: main return valve 240: resin solution recovery pipe 242: resin solution recovery valve
250: cleaning liquid recovery pipe 252: cleaning liquid recovery valve 260: recovery cleaning liquid tank
300: control unit 400: resin solution tank 500: cleaning liquid tank

Claims (17)

A nozzle housing disposed at an upper portion of the coating roll and having a fluid space in which a fluid is selectively introduced into the resin solution or the cleaning liquid is formed therein and the fluid can be supplied to the coating roll through a nozzle hole formed in the lower portion;
A filtering member disposed in the flow space, for filtering the foreign substances contained in the fluid and supplying the filtered foreign substances to the nozzle opening;
A discharge pipe connected to one end of the one end of the nozzle housing to discharge the fluid in the flow space to the outside; And
A discharge valve disposed on the discharge pipe to adjust the opening of the discharge pipe;
Lt; / RTI >
Wherein the nozzle housing further includes a resin solution supply pipe connected to one end of the nozzle housing to supply the resin solution to the fluid space and a cleaning solution supply pipe connected to the other end of the nozzle housing to supply the cleaning solution to the fluid space,
Wherein the nozzle hole is formed to have a length shorter than the length of the flow space,
A resin solution supply port communicating with the fluid space and the resin solution supply pipe is formed at one end of the nozzle housing on the outer side of the nozzle opening with reference to the nozzle opening,
And a cleaning liquid supply port communicating with the flow space and the cleaning liquid supply pipe is formed at the other end of the nozzle housing on the outer side of the nozzle opening with respect to the nozzle opening,
And the other end of the discharge pipe is disposed outside the coating roll with respect to the coating roll. The method according to claim 1,
Wherein either the resin solution or the cleaning liquid is selectively introduced into the flow space. 3. The method of claim 2,
Wherein the nozzle housing is arranged to extend along the longitudinal direction of the coating roll,
The flow space is arranged to extend from one end of the nozzle housing toward the other end along the longitudinal direction of the nozzle housing,
Wherein the nozzle hole is formed along the longitudinal direction of the nozzle housing on the lower side of the nozzle housing to communicate the outside with the flow space. The method of claim 3,
The resin solution supply device includes:
A resin solution supply valve disposed on the resin solution supply pipe to regulate the opening of the resin solution supply pipe; And
And a cleaning liquid supply valve disposed on the cleaning liquid supply pipe to regulate the opening of the cleaning liquid supply pipe. delete delete 5. The method of claim 4,
Wherein a cylindrical screw space is formed in the filter member along the longitudinal direction of the filter member,
Wherein the resin solution supply device further comprises a brush member arranged so as to be rotatable in close contact with an inner circumferential surface of the filtration member forming the screw space. 8. The method of claim 7,
The resin solution supply device further includes a resin solution supply port and a cleaning solution supply port,
A screw shaft extending along the longitudinal direction of the filter member and rotatably disposed in the screw space; And
And a propeller member for rotating the screw shaft by the flow of the fluid in the flow space,
Wherein the brush member is connected to the screw shaft and rotates together with the screw shaft. 9. The method of claim 8,
Wherein the screw shaft is provided to have a length longer than the length of the screw space, and each end of the screw shaft is disposed outside the screw space,
Wherein the propeller member comprises:
A first propeller member disposed between the resin solution supply port and the filtration member; And
And a second propeller member disposed between the cleaning liquid supply port and the filtration member. 5. The method of claim 4,
The resin solution supply device includes:
A switching member for providing a switching driving force so that the nozzle housing can switch between a feeding position of the upper portion of the coating roll and a waiting position spaced upward from the feeding position;
A flexible resin solution supply pipe arranged to be able to expand and contract on the resin solution supply pipe; And
Further comprising a flexible cleaning liquid supply pipe arranged so as to be able to expand and contract on the cleaning liquid supply pipe. A plurality of coating rolls whose outer circumferential surfaces rotate in contact with each other; A nozzle housing disposed at an upper portion of the coating roll and extending along a longitudinal direction of the coating roll, the nozzle housing having a nozzle hole for supplying a fluid selected from a resin solution or a cleaning solution toward the coating roll; And a recovery unit disposed below the coating roll and capable of selectively recovering the resin solution and the cleaning liquid,
Wherein the coating roll further comprises a pickup roll and a transfer roll, wherein the nozzle housing further comprises a resin solution tank,
The recovery unit includes:
A control unit for selectively supplying the resin solution or the cleaning liquid;
A recovered washing liquid tank for collecting and storing the washing liquid discharged from the flow space formed in the nozzle housing;
A first collecting member having a first collecting space in which an upper portion thereof is opened, and a pair of collecting units disposed on both sides of both ends of the pickup roll and the transfer roll;
A main recovery pipe connected at one end to the first recovering member to provide a path for the fluid recovered in the first recovering space;
A resin solution recovery pipe branched from the other end of the main recovery pipe and extending to the resin solution tank;
A washing liquid recovery pipe branched from the other end of the main recovery pipe and extending to the recovered wash liquid tank;
A resin solution recovery valve disposed on the resin solution recovery pipe and capable of adjusting the opening of the resin solution recovery pipe; And
And a cleaning liquid recovery valve disposed on the cleaning liquid collection pipe to adjust the opening of the cleaning liquid collection pipe,
Wherein the control unit is connected to the resin solution recovery valve and the cleaning liquid recovery valve to control the opening of the resin solution recovery valve and the cleaning liquid recovery valve. 12. The method of claim 11,
The coating roll
Wherein the pick roll, the transfer roll, and the application roll are closely contacted and sequentially disposed,
Wherein the nozzle hole supplies the fluid to a close contact portion between the pickup roll and the transfer roll,
Wherein the resin solution sequentially moves along the pick-up roll, the transfer roll, and the applicator roll, and is coated on the surface of the steel plate closely attached to the applicator roll. 12. The method of claim 11,
The flow space extending along the longitudinal direction of the nozzle housing,
The resin coating equipment comprises:
A resin solution supply pipe connected to one end of the nozzle housing at one end and connected to the resin solution tank at the other end to provide a path of movement of the resin solution from the resin solution tank to the flow space;
A resin solution supply valve disposed on the resin solution supply pipe to adjust a supply amount of the resin solution;
A cleaning liquid supply pipe having one end connected to the other end of the nozzle housing and the other end connected to a cleaning liquid tank containing the cleaning liquid to provide a path for moving the cleaning liquid from the cleaning liquid tank to the flow space;
A cleaning liquid supply valve disposed on the cleaning liquid supply pipe to adjust a supply amount of the cleaning liquid;
A filtering member disposed in the flow space to filter a foreign substance contained in the fluid and supply the filtrate to the nozzle opening; And
And a control unit for controlling said resin solution supply valve and said cleaning solution supply valve to selectively supply said resin solution or cleaning solution to said flow space. delete 14. The method of claim 13,
Wherein the control unit comprises:
The resin solution supply valve and the cleaning solution supply valve so that any one of the resin solution supply valve and the cleaning solution supply valve is selectively opened,
Wherein the resin solution supply valve is opened when the resin solution supply valve is opened, and the resin solution supply valve is closed,
And controls the cleaning liquid recovery valve to be opened when the cleaning liquid supply valve is opened, and controls the cleaning liquid recovery valve to be closed. 14. The method of claim 13,
Wherein the recovery unit further comprises a second recovery member having a second recovery chamber in which an upper portion thereof is opened, the first recovery member being disposed in the second recovery chamber,
The resin coating equipment comprises:
A discharge pipe connected to one end side of the nozzle housing to which the cleaning liquid supply pipe is connected to discharge the cleaning liquid in the flow space into the second recovery space; And
Further comprising a discharge valve disposed on the discharge pipe to adjust an opening degree of the discharge pipe,
Wherein the control unit comprises:
Controls the discharge valve so that the discharge pipe is opened when the cleaning liquid supply pipe is opened,
And controls the discharge valve so that the discharge pipe is closed when the resin solution supply pipe is opened. 17. The method of claim 16,
Wherein the recovery unit is provided with a checker hose extending from the second recovering member toward the recovered washer fluid tank and provided with a movement path for moving the wash fluid discharged from the second recovering member to the recovered wash fluid tank from the second recovering member, A resin coating installation, further comprising piping.

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