KR100891831B1 - A coater roll of an apparatus for coating a plated strip with resin - Google Patents

Abstract

Provided is a coater roll of a plated steel sheet resin coating apparatus for performing a resin coating on the plated steel sheet plated according to the needs of the consumer.

The coater roll is a roll body which is installed to rotate on the upper base of the coating apparatus with a trip pan and the plated steel sheet is in contact with the resin coated; and a different magnetic force disposed in the roll body to correspond to the thickness of the plated steel sheet. And a plurality of magnet members for variable adhesion of the coated steel sheets having different thicknesses to the cotter rolls, and a plurality of magnetic contact force variable parts having a plurality of magnet support bars for supporting the magnet members; and a guide through which the magnet support bars pass. A guide rotator having a groove and installed to rotate to both sides of the roll body on the upper base; And a magnet support bar fixing body provided on both sides of the upper base, and having an electromagnet member installed on the upper and lower sides of the auxiliary magnet installed at the end of the magnet support bar passing through the guide rotating body.

According to the present invention, the coating amount of the lower surface of the steel sheet is uniformly maintained according to the thickness of the steel sheet during the resin coating of the electroplated steel sheet, the resin coating of the plated steel sheet is performed precisely to improve the product quality of the plated steel sheet The effect can be obtained.

Plated steel sheet, resin, resin coating, steel plate resin coating equipment, coater roll, drip pan

Description

Coater roll of plated steel sheet coating equipment to make resin coating amount uniform {A COATER ROLL OF AN APPARATUS FOR COATING A PLATED STRIP WITH RESIN}             

1 is a block diagram showing a general coated steel sheet coating apparatus

Figure 2 is an overall front configuration diagram showing the coater roll of the plated steel sheet coating apparatus to uniform the resin coating amount according to the present invention

Figure 3 is a schematic diagram showing a coater roll used state of the present invention coated steel sheet coating device

Figure 4 is a cross-sectional view taken along the line A-A of Figure 2 showing a magnet member used in accordance with the thickness of the steel sheet in the present invention coater roll.

5 is a cross-sectional view taken along the line B-B of Figure 2 showing the roll shaft of the present invention coater roll.

Figure 6 is a cross-sectional view taken along the line C-C of Figure 2 showing the magnet support bar and the guide rotor of the present invention cotter roll

7 is a cross-sectional view taken along the line D-D of FIG. 2 showing the magnet support bar fixture of the cotter roll of the present invention.

Figure 8 is a perspective view of the guide rotor and the magnet support bar fixed body of the present invention cotter roll

9 is a perspective view showing a magnet member of the present invention cotter roll

Explanation of symbols on the main parts of the drawings                 

1 .... galvanized steel coating equipment 10 .... roll body

10a ... roll rolls 10b. Roll rolls

10c .... Roller Burr 12 .... Fixture

14 .... bearing 30 .... steel sheet adhesion variable

32 .... Magnet member 34 .... Magnet support bar

36 .... Auxiliary magnets 37 .... Magnet frame

38 ... magnet support 40 ... magnet

50 .... Guide Rotator 52 .... Guide Groove

70 .... Magnet support bar fixture 74 .... Electromagnet member

76 .... Power supply 90 .... Sensor

92 .... Sensor Operation

The present invention relates to a plated steel sheet resin coating apparatus for performing a resin coating on the plated steel sheet plated according to the request of the consumer, in particular, the coating amount of the steel sheet during the resin coating of the electroplated steel sheet, in particular, the coating amount of the lower surface of the steel sheet The coating coating of the coated steel sheet coating apparatus for uniformly coating the resin coating so that the resin coating of the plated steel sheet is precisely performed to further improve the product quality of the plated steel sheet by maintaining the uniformity according to the thickness of the steel sheet. It is about.

In general, a plated steel sheet coated with zinc-nickel (Zn-Ni), etc., is coated with epoxy and acrylic resins on the surface of the coated chromium solution, which is over-corrosive and corrosion-resistant after processing. To make excellent, the coating apparatus of such a plated steel sheet is shown in FIG.

That is, as shown in Figure 1, the plated steel sheet is passed through the chrome oven, chrome water chiller and dryer (dryer) after applying the chromium solution, and then transferred to the coating apparatus 100, wherein the coating apparatus 100 A part of the pick-up roll 120 which is partially locked to the drip pan 110 and the plated steel sheet S transferred to the cotter roll 140 which is in contact with the rotating transfer roll 130 in contact with it are in contact with the drip pan ( The resin liquid 150 in 110 is coated.

That is, during the resin coating operation of such a plated steel sheet (S), as shown in Figure 1, the first pass through the coating device 100, the plating passes between the backup roll 160 and the coater roll 140 The upper surface of the steel sheet (S) is coated, and then the plated steel sheet (S) supported as the lifter roll 170 is to perform the plating operation on the upper and lower surfaces of the plated steel sheet while the lower surface is in contact with the opposing cotter roll 140 '.

By the way, in such a conventional plated steel sheet resin coating apparatus, as shown in Figure 1, usually 800 ~ 1500 mg / m 2 resin is plated steel sheet (S) by the peripheral speed ratio of the coater rolls 140, 140 ' When coated on the upper and lower surfaces of the coated steel sheet, the coated steel sheet S passes between the backup roll 160 and the coater roll 140 while the coated steel sheet S receives a constant load. Although the amount of resin coating by the roll 140 is kept constant, when the bottom surface of the plated steel sheet S on the opposite side is coated with the coater roll 140 'of the opposite coating apparatus, the plated steel sheet S is simply the coater roll 140. Since the plated steel sheet S is subjected to a load load only by the weight of the steel sheet in a state where the load load is eliminated, the resin coating amount of the steel sheet is not constant depending on the thickness of the plated steel sheet. It causes a problem.

Therefore, in the conventional coating of the coated steel sheet resin, the contact force between the coater roll 140 'for coating the bottom surface of the coated steel sheet and the steel sheet is different according to the thickness of the coated steel sheet, and the upper surface has a constant resin coating amount regardless of the thickness of the steel sheet. While the lower surface of the steel sheet is variably changed depending on the thickness of the steel sheet, it causes a resin coating defect of the coated steel sheet, which lowers the product quality of the steel sheet.

The present invention has been made in order to solve the various problems as described above, the object of the present invention is to adjust the cotter roll adhesion by the magnet according to the thickness of the plated steel sheet, the amount of resin coating on the surface of the plated steel sheet regardless of the thickness of the plated steel sheet It is to provide a coater roll of the coated steel sheet coating apparatus to uniformly maintain the amount of resin coating so that the resin coating quality of the steel sheet can be further improved.

The present invention as a technical configuration for achieving the above object, in the coater roll of the coated steel sheet coating apparatus for coating the resin solution on the lower surface of the plated steel sheet through the pickup roll and the transfer roll immersed in the coating apparatus drip pan, A roll body installed on the upper base of the coating apparatus in which a trip pan is installed, the roll body being plated with resin and coated with resin; Wow,
A plurality of magnet members disposed inside the roll body to generate different magnetic forces corresponding to the thickness of the plated steel sheet to variably adhere the plated steel sheets having different thicknesses to the coater roll, and a plurality of magnet support bars to support the magnet members. Steel sheet adhesion force variable portion having a son; And,
A guide rotator having a guide groove through which the magnet support bar passes and supported to rotate to both sides of the roll body on the upper base; And,
A magnet support bar fixing body provided on both sides of the upper base, and having an electromagnet member installed on the upper and lower sides of the auxiliary magnet installed at the end of the magnet support bar passing through the guide rotating body, and installed on the upper base;
By providing a coater roll of the plated steel sheet coating apparatus to uniform the resin coating amount configured to include.

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Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is an overall front view showing the coater roll of the coated steel sheet coating apparatus for uniformly coating the resin coating amount according to the thickness of the steel sheet according to the present invention, Figure 3 is a schematic diagram showing a state of using the coater roll, Figure 4 5 is a cross-sectional view showing the magnet member of the coater roll, Figure 5 is a cross-sectional view showing the roll shaft portion of the coater roll, Figure 6 is a cross-sectional view showing a magnet guide rotating body of the coater roll, Figure 7 is a magnet support bar of the coater roll 8 is an exploded perspective view showing a magnet support bar fixture and a guide rotating body of a coater roll, and FIG. 9 is a perspective view showing a magnet member of a coater roll of the present invention, which is a conventional coating apparatus ( The same configuration as that of 100 is indicated by the same reference numeral.

In FIG. 2, the overall configuration of the coater roll 1 according to the present invention is illustrated in a front configuration diagram. The coater roll 1 according to the present invention has a large roll body 10, a steel sheet adhesion force variable part 30, and a guide rotating body. 50 and the magnet support bar fixture 70, each of these components 10, 30, 50 and 70 will be described in more detail as follows.

First, FIG. 2 shows a coating apparatus 100 in which the coater roll 1 of the present invention is installed, and the pickup roll 120 and the transfer roll 130 immersed in the drip pan 110 of the coating apparatus 100 as described above. Resin solution 150 is filled in the drip pan 110 through the) through the coater roll 1 of the present invention as described in detail below, the plated steel sheet (S) on the lower surface of the plated steel sheet (S) Irrespective of the thickness of the coating will be uniform.

Next, FIG. 2 and FIG. 4 show the roll body 10 of the coater roll 1 of the present invention. The roll body 10 of the present invention has an upper coating apparatus in which the trip pan 110 is installed. It is installed to rotate on the base 102 is configured to be coated with the resin solution 150 while the plated steel sheet (S) is in contact.

At this time, the roll body 10 may be further divided into a roll shaft bar 10a and a roll body bar 10b, the roll shaft bar 10a is shown in Figure 2, the upper base 102 It is supported so as to be rotated by a bearing 14a to the first fixing stand 12a provided on both sides of the roll body shell 10b is integrally connected to the inside of the roll shaft shell 10a, such a roll body The outer surface of the metal shell 10b is integrally covered with a rubber portion 10c in which the plated steel sheet S contacts and the resin solution 150 is coated.

Meanwhile, as shown in FIG. 2, the roll shaft bar 10a on one side of the roll body bar 10b is connected to the drive pulley 16b 'of the drive motor 16a installed on the upper base 102. Since the driven pulley 16 is fastened to which the driven belt 16b is fastened, the roll body shell 10b and the rubber part 10c rotate integrally with the roll shaft shell 10a when the motor 16a is driven. By coating the resin solution 150 on the lower surface of the plated steel sheet (S).

Next, Fig. 2, Fig. 4 and Fig. 9 shows the steel sheet adhesion force variable portion 30 of the coater roll 1 of the present invention, the steel sheet adhesion force variable portion 30 of the present invention, the roll body ( A plurality of magnet members 32 for generating a magnetic force corresponding to the thickness of the plated steel sheet (S) inside the roll body bar 10b of 10) to variably adhere the plated steel sheet having a different thickness to the coater roll (1), and A plurality of magnet support bars 34 for supporting the magnet members are provided.

That is, as shown in FIGS. 4 and 9, the magnet member 32 includes a frame 37 on both sides fixed to an end of the magnet support bar 34, and a magnet fixed between the frame 37. The support 38 and the magnet 40 fixed to the inner side of the magnet support 38, the frame 37 is formed in an arc shape is seated on the magnet support 38 fixed thereto to the frame ( 37) and the magnet 40, which is bolted and fixed integrally with the magnet support 38, are formed in an arc-shaped cross section, because the roll body shell 10b of the roll body 10 is formed in a cylindrical body.

And, as shown in Figure 4, the magnet 40 may be composed of the first to fourth magnets 40a, 40b, 40c, 40d having a thickness corresponding to the steel sheet thickness, for example For example, the fourth magnet 40d is thickest to correspond to the case where the steel sheet thickness is 0.4-0.79 mm, and then the third magnet 40c is next thinner to correspond to the case where the steel plate thickness is 0.8 to 1.19 mm. Thickness, the second magnet 40b has the next thinner thickness to correspond to the case where the steel sheet thickness is 1.2-1.59 mm, and finally the first magnet 40a has the steel plate thickness of 1.6-2.0 mm It has the thinnest thickness so as to correspond to the thickness of the steel sheet. The thicker the steel sheet, the greater the load applied to the cotter roll body 10. Therefore, the thicker the steel sheet, the thickness of the magnets 40a-40d is inversely inversely increased. Thinner.

At this time, as shown in Figures 4 and 5, the important thing is that the magnets 40 are to be arranged so that the gap (T) is formed between the magnets 40 and the roll body shell 10b, which is the magnet Support the magnet support bar 34 fixed to both sides of the frame 37 of the 40 to maintain the gap, in this case the roll body shell 10b can be rotated when driving the motor 16a due to the gap The magnetic force of the magnet 40 affects the roll body shell 10b so that the plated steel sheet S transferred through the rubber part 10c of the roll body shell 10b is always constantly on the roll body 10 side. It is conveyed while being in close contact with the steel sheet resin coating amount is always constant regardless of the thickness of the steel sheet.

Next, the guide rotating body 50 is shown in FIGS. 2, 6 and 8, and the guide rotating body 50 of the present invention is a guide through which the magnet support bar 34 passes and is supported. The groove 52 is provided, and is rotatably installed on both sides of the roll body 10 on the upper base 102.

That is, the guide rotating body 50 is formed of a cylindrical rotating body which is rotatably supported by the bearing 14b of the second fixing table 12b vertically installed on the upper base 102, and the guide groove 52 ) Is composed of four square grooves each formed integrally penetrating at intervals of 90 degrees with respect to the center so that the magnet support bar 34 passes.

Accordingly, the magnet support bar 34 connected to the magnets 40 is movable only through the guide groove 52, and when the guide rotor 50 rotates, the magnet support bar 34 is rotated. While rotating integrally, the positions of the first to fourth magnets 40a to 40d are variably adjusted.

In addition, as shown in Figures 2 and 6, the upper part of the guide rotating body 50 is a plurality of sensor operation piece 92 to operate when in contact with the plurality of sensing sensors 90 disposed on the upper side The circumferential direction of the whole 50 is arrange | positioned and spaced apart.

That is, a total of four detection sensors 90a, 90b, 90c and 90d are supported as a bracket on one block 91, and the guns are spaced at intervals of 90 degrees along the circumference of the guide rotating body 50. When four sensor operation pieces 92a, 92b, 92c and 92d are arranged so that the guide rotating body 50 is driven to rotate and one sensor operation piece contacts the sensor, the sensor operation pieces roll in a straight line. When one of the 1-4 magnets arranged in the body shell 10b is selected, and eventually the thickness of the initial steel sheet is input to the control panel not shown in the drawing, the magnet 40 corresponding to the steel sheet thickness is selected. The plated steel sheet (S) is to be placed in the upper side of the roll body iron shell 10b.

At this time, as shown in Figure 2, the guide rotating body 50 is driven to the drive belt 54b fastened to the drive pulley 54b 'of the drive motor 54a installed on the upper base 102 is fastened. When the pulley 54 is provided to drive the driving motor 54a, the guide rotating body 50 is configured to rotate integrally.

Next, FIG. 2, FIG. 7 and FIG. 8 show the magnet support bar fixture 70 of the coater roll 1 of the present invention. The magnet support bar fixture 70 of the present invention is the guide. Auxiliary magnet 36 installed at the end of the magnet support bar 34 passing through the rotating body 50 and an electromagnet member 74 provided on the upper and lower sides of the magnet support bar 34 are disposed on both sides of the upper base 102. do.

That is, as shown in FIGS. 2 and 8, the magnet support bar fixture 70 is horizontally fixed on the upper part of the third fixture 12c vertically installed on the upper base 102 and has an empty inside. The electromagnet member 74 is composed of first and second electromagnets 74a and 74b fixed to the inner circumferential surface of the magnet support bar fixing member 70 in the form of upper and lower beams.

In addition, one of the auxiliary magnets 36a installed at the end of the magnet support bar 34 when the electromagnet is operated is connected to the electromagnets with power supply holes 76 installed through upper and lower sides of the magnet support bar fixture 70. ) Is magnetically fixed to the first electromagnet 74a of the upper side and the other auxiliary magnets 36b, 36c and 36d are installed to be magnetically fixed to the second electromagnet 74b of the daylight.

At this time, as shown in Figure 2, the auxiliary magnets 36 are made of a configuration that is installed in the non-conductive bar (34a) that is connected and assembled as a coupling (34b) at the end of the magnet support bar (34).

Referring to the preferred embodiment of the present invention made in the above configuration in more detail as follows.

As shown in FIGS. 1 to 3, the upper surface of the steel sheet is coated between the backup roll 160 and the one side cotter roll 140 during the resin coating of the plated steel sheet S, and then contacted by the weight of the steel sheet. The lower surface of (S) is uniformly correlated with the thickness of the steel sheet while adjusting the adhesion force according to the thickness of the steel sheet through different magnetic forces generated from the magnets 40 disposed inside the roll body 10. Coater roll (1) of the plated steel sheet coating apparatus to uniform the resin coating amount of the present invention to be maintained as follows.

First, as shown in FIG. 2, when the guide rotor 50 is rotationally driven as the motor 54a, the magnet support bar 34 passing through the guide groove 52 of the guide rotor 50 is integrated. The magnet of one of the first to fourth magnets 40a-40d installed on the frame 37 and the support 38 to the inside of the magnet support bar 34 is rotated to the inside of the roll body shell 10b. It is arrange | positioned at the site which (S) passes.

At this time, if the thickness of the steel sheet is 1.6-2.0mm thickest, the first the smallest thickness of the magnet when the sensor operating piece 92a installed on the guide rotating body 50 is in contact with the sensor 90a. The magnet 40a is disposed at the steel sheet passing position. Since the larger the thickness of the steel sheet S is, the larger the load load is applied to the roll body 10, the greater the adhesion between the steel sheet and the roll body, and therefore the smallest thickness. The first magnet 40a is used.

On the contrary, when the thickness of the steel sheet is the thinnest (0.4-0.79 mm), since the weight load applied to the roll body 10 by the weight of the steel sheet is small, the fourth magnet 40d having the thickest magnetic force among the magnets is the thickest. Is to use.

On the other hand, as shown in Fig. 2, 7 and 8, the end auxiliary magnet 36 of the magnet support bar 34, which is connected to both sides of the frame 37 and the magnet support 38 on which the magnet 40 is seated One of the auxiliary magnets 36a corresponding to the first electromagnets of the) is in close contact with each other by the magnetic force generated by the first electromagnet when the power of the first electromagnet 74a installed in the magnet support bar fixture 70 is turned on. If the auxiliary magnet 36a is the S pole, for example, the first electromagnet 74a becomes the N pole.

Therefore, as shown in FIG. 4, the magnet support bar 34 for determining the position of the magnet 40 is fixed, and the magnets 40 therebetween are always fixed to the roll body shell 10b. When the roll body shell 10b is rotated by the motor drive while maintaining the T), the steel sheet S is constantly adhered to the roll body 10 by the magnetic force generated by the magnet 40, regardless of the thickness of the steel sheet. The resin coating amount can be adjusted constantly.

Accordingly, when the electromagnet member 74 becomes an electromagnet by the power supply hole 76, the magnet support bar 34 at the moment when the auxiliary magnet 36 of the magnet support bar 34 is attached to and fixed to the electromagnet member 74. Among the magnets disposed between the corresponding magnets according to the thickness of the steel sheet is located inside the roll body 10, the plated steel sheet passing through the roll body 10 has a high adhesion force due to the thickness The thicker it is to be constantly maintained by the magnet 40 generates less magnetic force.

As described above, according to the coater roll of the plated steel sheet coating apparatus which makes the resin coating amount uniform, the contact force between the plated steel sheet and the coater roll when the bottom surface of the plated resin is coated on the thickness of the steel sheet by magnets having different thicknesses in the coater roll. By adjusting accordingly, the resin coating amount of the steel sheet passing through the coater roll is always provided uniformly.

Therefore, by coating the resin evenly on the upper surface as well as the lower surface of the coated steel sheet, it is possible to prevent resin streaks and marks caused by poor coating amount, thereby further improving the product quality of the coated steel sheet.

While the invention has been shown and described with respect to specific embodiments thereof, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit or scope of the invention as set forth in the claims below. I would like to know that those who have knowledge of this can easily know.

Claims (6)

Coater roll (1) of the coated steel sheet coating apparatus 100 for coating the resin solution 150 on the lower surface of the plated steel sheet (S) through the pickup roll 120 and the transfer roll 130 immersed in the coating device drip pan 110 ), A roll body 10 installed to rotate on the coating apparatus upper base 102 in which the trip pan 110 is installed, and coated with a steel plate S to be coated with a resin; Wow, A plurality of magnet members 32 disposed inside the roll body 10 and variablely adhering the plated steel sheets having different thicknesses to the coater roll 1 while generating different magnetic forces corresponding to the thickness of the plated steel sheets, and the magnets A steel sheet adhesion force variable portion 30 having a plurality of magnet support bars 34 supporting the member; And, A guide rotator 50 having a guide groove 52 through which the magnet support bar 34 passes and supported to rotate to both sides of the roll body 10 on the upper base 102; And, It is equipped with an electromagnet member 74 provided on the upper and lower sides of the auxiliary magnet 36 installed at the end of the magnet support bar 34 passing through the guide rotating body 50 and on the upper base 102. Magnet support bar fixtures 70 installed on both sides; Coater roll of the plated steel sheet coating apparatus to uniform the amount of resin coating, characterized in that configured to include The roll body (10a) of claim 1, wherein the roll body (10) is rotatably supported by the bearing (14a) to the first fixing table (12a) installed on both sides of the upper base (102); And a roll body shell 10b which is integrally connected to the inner side of the roll shaft shell 10a and whose outer surface is covered with a rubber part 10c in contact with the plated steel sheet S and to which the resin solution 150 is applied. Consisting of, A driven pulley 16 is provided on one side of the roll shaft shells 10a of the roll shaft shells, and the driven pulley 16 is provided to the drive pulley 16b 'of the drive motor 16a installed on the upper base 102. Cotter roll of the plated steel sheet coating device, characterized in that the drive belt (16b) is fastened to be fastened so that the roll body 10 is rotated when the motor is driven 2. The magnet member (32) according to claim 1, wherein the magnet member (32) has a frame (37) fixed to an end of the magnet support bar (34) disposed at both sides, and a magnet support (38) fixed between the frame (37). And a magnet 40 seated and fixed inside the magnet support 38. The magnet 40 has a thickness of the first to fourth magnets 40a sequentially thickened corresponding to the steel sheet thicknesses formed in the thicknesses of 1.6-2.0 mm, 1.2-1.59 mm, 0.8-1.19 mm, and 0.4-0.79 mm. Coater roll of coated steel sheet coating apparatus, characterized in that consisting of (40b) (40c) (40d) delete The guide rotating body (50) according to claim 1, wherein the guide rotating body (50) is composed of a cylindrical rotating body which is rotatably supported by a bearing (14b) on a second fixing table (12b) vertically installed on the upper base (102). Guide groove 52 of the rotating body 50 is composed of a rectangular groove formed integrally penetrating at intervals of 90 degrees with respect to the center so that the magnet support bar 34 passes, On the upper part of the guide rotating body 50, a plurality of sensor operating pieces 92 for operating the detecting sensors in contact with the plurality of sensing sensors 90 disposed on the upper side are circumferential directions of the guide rotating body 50. Coater roll of the coated steel sheet coating device characterized in that arranged in spaced apart 2. The magnet support bar fixture (70) according to claim 1, wherein the magnet support bar fixture (70) is horizontally fixed on an upper portion of the third holder (12c) vertically installed on the upper base (102) and has a hollow cylindrical fixture. The electromagnet member 74 is composed of first and second electromagnets 74a and 74b which are fixed to the inner circumferential surface of the magnet support bar fixture 70 in the form of upper and lower beams as a whole. The first and second electromagnets 74a and 74b are connected to power supply holes 76 provided through upper and lower sides of the magnet support bar fixing member 70 to be installed at the ends of the magnet support bar 34. One of the magnets 36 is magnetically fixed to the first electromagnet 74a, and the other auxiliary magnets are magnetically fixed to the second electromagnet 74b.

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