KR200220948Y1 - Apparatus for adjusting position of a cooling tank spray nozzle for cooling plating strip - Google Patents

Abstract

The present invention relates to a position adjusting device of a cooling tank spray nozzle for cooling a plated steel sheet. The purpose of the present invention is to provide a coolant spray angle of a coolant spray nozzle on a cooling tank installed for cooling a steel sheet that has undergone a plating process. The position in the up and down direction can be variably adjusted according to the specifications of the steel sheet, i.e., width and thickness, so as to perform cooling operation of the steel sheet more precisely.

Therefore, in order to achieve the above object, the present invention, the cooling water spray nozzle 30 of the cooling tank 20 installed in the plating line for the cooling of the plated steel sheet 10 above the water level of the cooling tank 20 It is rotatably installed between the nozzle head 40 installed to move in the up and down direction, and configured to adjust the spray angle and height of the coolant sprayed on the surface of the plated steel sheet 10, the spray nozzle 30 Provided is a position adjusting device for a cooling tank injection nozzle for cooling a plated steel sheet having an angle indicator (60) positioned above the nozzle head (40) to indicate an angle.

Description

APAPATUS FOR ADJUSTING POSITION OF A COOLING TANK SPRAY NOZZLE FOR COOLING PLATING STRIP}

The present invention relates to a spray nozzle (SPRAY NOZZLE OF COOLING TANK) of a plated steel sheet cooling tank for quenching a plated steel plate, that is, a tin plated line, to maintain the gloss of the surface of the steel sheet. The cooling water injection angle of the cooling water injection nozzle and the vertical position of the cooling water injection nozzle on the cooling tank installed for cooling the steel plate can be adjusted according to the steel plate's specification, i.e., width and thickness. The present invention relates to a position adjustment device for a cooling tank injection nozzle for cooling a plated steel sheet.

In general, in the case of cold-rolled steel sheet according to the purpose of use, such as automobile steel sheet, electrical steel sheet, and the post-treatment process to perform the plating operation to improve the corrosion resistance of the steel sheet and beautiful appearance, such as Plating process of steel sheet For example, the tin plating process is schematically shown in FIG.

That is, as shown in FIG. 1, when the steel sheet coil 100 passes through the nickel and tin plating facilities 120 and 130 through the pickling process 110, the plating operation is performed. After passing through the cooling tank 140 to maintain the gloss on the surface, the steel plate plated through the next chrome plating equipment 150 and the expansion treatment equipment, that is, the resin coating equipment 160 is finally coiled 100 ' Will be manufactured and shipped to the product.

On the other hand, the cooling tank 140 for maintaining the surface gloss of the plated steel sheet 100 'and the cooling water injection nozzle 142 installed on the upper side is shown in Figure 2, through the tin plating facility 130 The tin plated steel sheet 100 'is heated to a temperature of about 260-270 ° C. and the tin layer is melted, and the tin plate is coated with water through the cooling tank 140 while cooling the steel plate surface. ) To maintain the surface gloss.

That is, as shown in FIG. 1 and FIG. 2, the sink roll 144 for steel sheet transfer is installed in the cooling tank 140 installed between the plating facility 130 and the chrome plating facility 150. Through this, the plated steel sheet 100 ′ is cooled while being precipitated in the cooling tank 140 and then transferred to the next facility 150, and in the spray nozzle 142 installed to be positioned on the water level of the cooling tank 140, the plated steel sheet. Cooling water is sprayed to the surface of 100 '.

However, in the injection nozzle 142 of the conventional cooling tank for cooling the plated steel sheet as described above, the nozzle height and the spraying angle of the nozzle cannot be adjusted so that the plating amount of the steel plate, that is, the surface of the steel plate 100 is plated. According to the thickness of the plating layer to be used, and according to the size (SIZE), such as the thickness of the steel sheet itself, there was a problem that can not adjust the spray height and spray angle of the cooling water.

As a result, an uneven phenomenon of a cooling effect that does not uniformly cool the entire surface of the plated steel sheet 100 'due to the impossibility of spraying the appropriate cooling water on the steel sheet is generated, which causes staining (QUENCH STRAIN) on the surface of the plated steel sheet 100'. This is a serious problem that causes quality defects in the steel sheet.

The present invention has been made in order to improve the various problems as described above, the purpose is to install on the water level of the cooling tank to inject the cooling water to the surface of the steel sheet when the plated steel sheet subjected to the tin plating process is obtained in the cooling tank By installing the coolant spray nozzle to adjust the height and spray angle of the coolant spraying position easily, it prevents surface defects such as stains on the surface of the steel sheet due to uneven cooling generated during cooling of the steel sheet. An object of the present invention is to provide a position adjusting device for a cooling tank injection nozzle for cooling a plated steel sheet to improve.

1 is a schematic process diagram showing a plating process line and a cooling tank of a general steel sheet

Figure 2 is a schematic side view showing a spray nozzle installed in a conventional cooling tank for cooling plated steel

3 is a perspective view showing a position adjusting device of a cooling tank injection nozzle for cooling a plated steel sheet according to the present invention

Figure 4 is a side configuration view showing a position adjustment device of the cooling tank injection nozzle for cooling the plated steel plate of the present invention

Figure 5 is a schematic front view showing an operating state of the position adjustment device of the cooling tank injection nozzle of the present invention

Figure 6 is a perspective view of the main part for explaining the up and down operation of the injection nozzle in the position adjustment device of the cooling tank injection nozzle of the present invention

Figure 7 is a perspective view of the main part for explaining the injection nozzle rotation state of the injection nozzle in the position adjustment device of the cooling tank injection nozzle of the present invention

8 is a perspective view showing main parts of the angle indicator in the position adjustment device of the cooling tank injection nozzle of the present invention

Explanation of symbols on the main parts of the drawings

1 .... Injection nozzle position adjusting device 10 .... Plated steel sheet

20 .. Cooling tank 30 .. Spray nozzle

31 .... Connecting plate 32,50 .... Motor

36,56 .... Transfer Bar 38 .... Connector Bar

40 .... Nozzle Head 42 .... Fixture

44 .... Block 46 .... Guide Bar

48 .. Moving structure 52 .... Chain

60 .... angle indicator 62 .... fixing plate

68 .... indicator 70 .... indicator

The present invention as a technical configuration for achieving the above object, in the cooling water injection nozzle of the cooling tank installed in the plating line for cooling the plated steel sheet, the nozzle is in the up and down direction of the water level of the cooling tank Rotatably installed between the nozzle heads installed so as to be moved to adjust the spray angle and height of the coolant sprayed on the surface of the plated steel sheet, and the angle of the nozzle head positioned above the nozzle head to display the spray angle of the spray nozzle. By providing a position adjusting device for the cooling tank injection nozzle for cooling the plated steel sheet provided with an indicator.

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

Figure 3 is a perspective view showing a position adjustment device of the cooling tank injection nozzle for cooling plated steel sheet according to the present invention, Figure 4 is a side configuration view showing a position adjustment device of the injection nozzle, Figure 5 is a position adjustment of the injection nozzle Figure 6 is a schematic front view showing the operating state of the device, Figure 6 is a perspective view of the main part for explaining the up and down operation of the injection nozzle in the position adjustment device of the injection nozzle, Figure 7 is the injection of the injection nozzle in the position adjustment device of the injection nozzle 8 is a perspective view illustrating main parts of the nozzle in a rotating state, and FIG. 8 is a perspective view illustrating main parts of an angle indicator in the position adjusting device of the spray nozzle.

3 and 4 show the position adjustment value (1) of the injection tank injection nozzle for cooling the plated steel sheet cooling of the present invention, in this injection nozzle position adjustment device (1) for the electroplating steel plate electroplating steel plate 10 Cooling water injection nozzle 30 of the cooling tank 20 installed in the plating line for cooling of the cooling tank 20 is rotatable between the nozzle head 40 is installed to move in the upper and lower directions above the water level of the cooling tank 20 An angle indicator disposed above the nozzle head 40 so as to adjust the spray angle and the height of the coolant sprayed onto the surface of the plated steel sheet 10 and to display the spray angle of the spray nozzle 30. 60).

And, as shown in Figure 7, the injection nozzle 30 is connected between the nozzle head 40 through the bearing and the sealing member so as to be rotatable and coolant injection in the form of a flange 33 and the plated steel sheet 10 in the center ) Is a pair of passes.

3 and 4, the nozzle head 40 has a block 46a at the lower end of the pair of guide bars 46 through the fixing table 42 fixed in parallel to the upper side of the cooling tank 20. ) Connected to move up and down.

3 and 6, the upper end of the guide bar 46 is fixed to the movable structure 48 located above the fixing table 42, and the center side of the movable structure 48 is fixed. The upper screw jack 56a of the moving bar 56 is fixed to the worm shaft 54 in the gearbox 54a connected to drive the motor 50 and the chain 52 installed therein. When the motor 50 is driven, the lower nozzle head 40 of the guide bar 46 moves upward and downward as the moving structure 48 moves up and down about the axis of the moving bar 56. In practice, the spindle 57 is operated on both sides.

Meanwhile, as shown in FIGS. 3, 4, and 7, the worm shaft 34 driven by the motor 32 installed in the movable structure 48 is connected to the connection plate 31 installed at one side of the nozzle 30. ) And a connector bar 38 connected to a lower portion of the screw jack 36a of the gearbox 35 of the movable bar 36 engaged with the vertical drive is connected to the nozzle 30 and integrally formed on the main surface of the nozzle 30 when the motor is driven. The lip 30a is rotated.

3 and 8, the angle indicator 60 includes a wire 64 having one end connected to a fixed plate 62 horizontally fixed to the connector bar 38 of the movable structure 48. The guide bar 46 while passing through a rotating pulley 72a fixed to a shaft 72 connected to the rear of the display needle 70 installed to rotate on the display panel 68 through pulleys 66a and 66b provided at the top. It is inserted into the interior of the weight 74 is fixed to the end is made of a configuration to display the rotation angle of the nozzle (30).

Referring to the operation and effects of the present invention made in the above configuration in more detail as follows.

3 to 8, the cooling water spray nozzle 30 on the cooling tank 20 installed in the plating line to cool the steel sheet 10 in order to maintain the surface gloss of the tin-plated steel sheet 10 The position adjusting device 1 of the cooling tank injection nozzle for cooling the plated steel sheet to rotate and adjust the height according to the level of the cooling tank 20 and the plated state of the steel sheet is as follows.

First, the plated steel sheet 10 transferred through the sink roll 22 installed into the cooling tank 20 is cooled through the opening portion 48a formed in the moving structure 48 of the apparatus 1. When it is drawn in and is withdrawn, it is transferred to the outside of the moving structure 48.

On the other hand, it is necessary to adjust the injection angle and height of the cooling water injection nozzle 30 according to the plating state of the steel plate 10, for example, in the case of thin plating plating amount of about 2.8g, the nozzle angle, that is, the cooling water injection nozzle The injection angle of 30 is increased upward, and the height is lowered from the water level of the cooling tank 20 so that the cooling temperature is lowered. In contrast, in the case of post-plating less than 2.8, the injection angle of the injection nozzle 30 is downward. And from the water level of the cooling tank 20, the height should be placed adjacent to raise the cooling temperature.

Therefore, when the steel sheet 10 is introduced into the sink roll 22 through the apparatus 1, the height of the injection nozzle 30 is first adjusted in accordance with the above conditions, and both sides of the injection nozzle 30 are installed. When the nozzle head 40 is moved up and down, the height of the spray nozzle 30 is integrally adjusted.

That is, the nozzle head 40 is connected to the block 44 at the lower end of the pair of guide bars 46 through the fixing table 42 fixed in parallel to the upper side of the cooling tank 20, the guide bar 46 The upper end of is fixed to the movable structure 48 which is located above the stator 42,

Accordingly, when the moving structure 48 is moved up and down, the lower nozzle head 40 of the block 44 connected to the guide bar 46 moves up and down integrally, and the moving structure 48 is When the chain 52 is driven by the motor 50 installed at the center of the movable structure 48, the worm shaft 54 in the gearbox 54a mounted on the sprocket 52a is driven, and thus, the fixing table 42 The upper screw jack 56a of the movable bar 56 having the lower end fixed thereto is engaged with the worm shaft 54 so that the movable structure 48 moves around the movable bar 56 when the motor 50 is driven. As the lowering, the lower nozzle head 40 of the guide bar 46 moves up and down integrally. In practice, the spindle 57 is driven integrally with the driving of the motor 50 so that both sides of the moving structure 48 move. The moving bar 56 is activated.

On the other hand, even if the upper portion of the connector bar (38) connected to the connecting plate 31 installed to one side of the nozzle 30, the motor 32 installed in the moving structure 48 is driven in the vertical direction with the worm shaft 34 The inner screw jack 36a of the gearbox 35 of the moving bar 36 engaged with each other moves up and down when the motor is driven.

Accordingly, when the motor 32 is operated, the strand jack 36 of the movable bar 36 moves up and down while rotating, so that the connect bar 38 connected to the lower portion of the movable bar 36 is raised or lowered. The nozzle lip 30a of the nozzle 30 to which the lower end of the connector bar 38 is connected as the connecting plate 31 rotates integrally with the rotation of the nozzle 30 to cool the water of the nozzle 30 according to the size of the steel sheet. The angle can be adjusted simply.

In addition, the device (1) of the present invention is provided with an indicator (60) indicating the rotation angle of the nozzle 30, the wire 64, one end of which is connected to a fixed plate 62 horizontally fixed to the contact bar (38) The connector bar 38 is connected to the shaft 72 connected to the rear of the display needle 70 installed on the display panel 68 through the pulleys 66a and 66b installed on the upper side of the movable structure 48. When the rotating pulley 72a is rotated while the fixed rotating pulley 72a is rotated, the angle of rotation of the nozzle 30 according to the operation of the connector bar 38 is eventually displayed.

Accordingly, the nozzle No. 40, which is fixed in the conventionally installed spray nozzle 30, is operated in a vertical direction according to the cooling temperature of the steel sheet, and at the same time, the nozzle head 40 moves downward when the moving structure 48 moves up and down when the motor is driven. The height of the nozzle 30 is adjusted at the same time.

Thus, according to the injection nozzle injection position adjusting device of the cooling tank for steel plate plating according to the present invention, the spray angle of the cooling water according to the specifications of the steel sheet during the surface cooling of the plated steel sheet, that is, its thickness and width, and the thickness of the plated layer on the surface of the steel sheet And by providing the injection nozzle so that the height can be easily adjusted, there is an advantage to prevent the defects on the surface of the steel sheet, such as surface stains due to cooling unevenness of the steel sheet.

Therefore, the cooling operation to maintain the surface gloss of the plated steel sheet can be performed more precisely, so that the quality of the steel sheet is further improved, thereby improving product productivity.

In addition, if the coolant jet nozzle located on the level of the cooling tank is deposited in the coolant of the cooling tank, immediately adjust the height of the jet nozzle to prevent line troubles such as stopping the steel sheet cooling due to the precipitation of the jet nozzle coolant. It is an excellent effect.

While the subject innovation has been shown and described with respect to specific embodiments, it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit or scope of the subject innovation as provided by the following claims. I would like to clarify that knowledge is easy to know.

Claims (5)

In the cooling water spray nozzle 30 of the cooling tank 20 installed in the plating line for cooling the plated steel sheet 10, The nozzle 30 is rotatably installed between the nozzle head 40 installed so as to move in the up and down direction above the water level of the cooling tank 20, the spray angle of the cooling water sprayed on the surface of the plated steel sheet 10 And an angle indicator 60 which is configured to adjust the height and is positioned above the nozzle head 40 to display the spray angle of the spray nozzle 30. Nozzle Position Adjuster The method of claim 1, wherein the injection nozzle 30 is connected between the nozzle head 40 through the bearing and the sealing member so as to be rotatable and coolant injection in the form of a flange 33, the plated steel sheet 10 is passed through the center Consists of a pair, the nozzle head 40 is connected to the lower end of the pair of guide bar 46 through a fixed support 42 fixed in parallel to the upper side of the cooling tank 20, 46a to move up and down Positioning device of the cooling tank injection nozzle for plating steel sheet cooling According to claim 2, wherein the upper end of the guide bar 46 is fixed to the movable structure 48 which is located above the fixing table 42, the motor 50 is installed on the center side of the movable structure 48 and The motor 50 is engaged with the upper screw jack 56a of the moving bar 56 which is fixed at the lower end to the fixing table 42 in the worm shaft 54 in the gear box 54a connected to drive the chain 52. As the moving structure 48 moves up and down with the moving bar 56 as the axis during driving, the lower nozzle head 40 of the guide bar 46 is configured to move up and down. Cooling tank injection nozzle position adjusting device 4. The moving bar 36 of claim 3, wherein the connecting plate 31 installed at one side of the nozzle 30 is engaged with the worm shaft 34 driven by the motor 32 installed at the moving structure 48 to be vertically driven. The connector bar 38 connected to the lower side of the screw jack 36a of the gearbox 35 is connected to the nozzle lip 30a integrally formed on the main surface of the nozzle 30 when the motor is driven. Adjusting device for jet nozzle of cooling plate for cooling According to claim 1 or claim 4, The angle indicator 60, The wire 64, one end of which is connected to the fixed plate 62 horizontally fixed to the connector bar 38 is installed on the upper portion of the movable structure 48 Through the pulleys (66a, 66b) through the rotating pulley (72a) fixed to the shaft 72 connected to the rear of the indicator needle 70 is installed on the display panel 68 to rotate inside the guide bar (46) Inserted and the weight 74 is fixed to the end of the position adjustment device of the cooling tank jet nozzle for cooling plated steel plate, characterized in that configured to display the rotation angle of the nozzle 30