KR20090115500A - Apparatus for preventing a stain of strip sides - Google Patents

Abstract

PURPOSE: An apparatus for preventing a stain on edge of a steel plate is provided to remove a spraying solution remaining on the edge of a steel plate to prevent stains thereon. CONSTITUTION: An apparatus for preventing a stain on edge of a steel plate comprises a driving unit, actuating unit, and sucking unit. The driving unit drives a screw shaft(19). The actuating unit is moved toward the edge of a steel plate(100) by the screw shaft. The sucking unit sucks a spraying solution remaining on the edge of the steel plate. The actuating unit comprises a housing box(40), operating cylinder(15), and roller. The housing box is engaged with the screw shaft. The actuating cylinder is fixed to the housing box. The driving unit comprises a sensor(16), motor(8), and screw shaft.

Description

Apparatus for preventing a stain of strip sides}

The present invention relates to an apparatus for preventing surface smearing of a steel sheet, and more specifically, edge side squeezing is not performed by a wiper roll installed at a rear end of a water cooling stand during an organic coater operation of a coated steel sheet. Therefore, the present invention relates to an edge surface staining prevention device of the steel sheet which can improve the surface quality of the plated steel sheet by removing the injection liquid on the edge side of the plated steel sheet.

In general, in the plating line of the cold-rolled electroplating equipment, the plated steel sheet, which is plated by zinc in the front and rear surfaces, is a high temperature, and the hot plated steel sheet is cooled through a cooling process performed in a water cooling stand.

In this case, since the cooling process is performed by spraying the spray liquid onto the plated steel sheet in the water cooling stand, a squeezing process of removing the spray liquid sprayed on the plated steel sheet after the plated steel sheet is cooled is required. .

In this squeezing process, the plated steel sheet is formed between the upper wiper roll and the lower wiper roll in a state in which the upper wiper roll and the lower wiper roll are in close contact with the upper and lower surfaces of the plated steel sheet, respectively. Through this, the injection liquid remaining on the upper and lower surfaces of the plated steel sheet is removed.

Figure 1a is a perspective view of a conventional water chiller, wiper roll and dryer device,

Figure 1b is a side view of a conventional wiper roll,

FIG. 1C is an enlarged front view of the portion “A” shown in FIG. 1A to explain that the edge side surface defect of the steel sheet is caused by the conventional wiper roll.

Hereinafter, with reference to FIGS. 1A to 1C, an edge side surface defect of a steel sheet is generated due to a conventional wiper roll.

As shown in Figure 1a, in order to cool the hot plated steel sheet 100, the upper and lower surfaces are plated by zinc in the plating line is provided with a water chiller consisting of the upper spray 200 and the lower spray (200a) have.

The upper sprayer 200 and the lower sprayer 200a spray injection liquid onto the plated steel sheet 100 so that the plated steel sheet 100 is cooled, and water is generally used as the injection liquid.

Since the injection liquid remains on the surface of the cooled plated steel sheet 100, the upper wiper rolls 400 and 400a are disposed at the rear end of the water chiller in order to perform a squeezing process to remove the remaining injection liquid. Lower wiper rolls 600 and 600a are provided.

In this squeezing process, the upper and lower wiper rolls 400 and 400a and the lower wiper rolls 600 and 600a adhere to the upper and lower surfaces of the plated steel sheet 100, respectively. It passes through a) and the lower wiper roll (600, 600a) to remove the injection liquid remaining on the upper and lower surfaces of the plated steel sheet (100).

However, the squeezing process is such that the amount of the injection liquid remaining on the edge side of the plated steel sheet 100 is minute in the case of the plated steel sheet 100 having a thickness of 0.8 mm or less, and thus has a great influence on the quality. However, in the case of the plated steel sheet 100 having a thickness of 0.8 mm or more, the squeezing is less at both edges of the plated steel sheet 100 due to the thicker steel plate, so that the injection liquid is less than that of the plated steel sheet 100. It will remain on the edge side surface.

As such, when the plated steel sheet 100 passes through the dryer (Dryer, 800) facility with less squeegeeing at both edges of the plated steel sheet 100 and the injection liquid remains, plating is performed as shown in FIG. 1C. Spray liquids remaining on both edges of the steel sheet 100 appear on the surface to form a surface stain 500, and if the surface stain 500 is not removed, a surface defect occurs in the product.

In addition, the upper and lower wiper rolls (400, 400a, 600, 600a) may be generated wiper roll wear 700 on the edge portion of the plated steel sheet 100, the injection liquid flowing along the wiper roll wear 700 As a result, the edge-side surface stain 500 of the plated steel sheet 100 and the resulting surface defects of the product become serious.

Since the thickness of the plated steel sheet 100 increases, the amount of the injection liquid remaining on both edges of the plated steel sheet 100 increases, and thus, in the process of manufacturing a steel sheet having a large thickness such as a fingerprint material and a fuel tank steel sheet material, The upper and lower wiper rolls 400, 400a, 600, and 600a do not become edge-side squeezing (squeezing), the surface defect problem of the product due to the injection liquid remaining on the edge side of the steel sheet 100 becomes more serious.

This problem is particularly serious in the case of products that require very strict surface quality, such as automobiles and home appliances, which require defects on the surface of the product.

The present invention is to solve the problems as described above by removing the injection liquid remaining on the steel sheet edge side to prevent surface stains to occur to greatly improve the quality of the organic coated (coated) coated steel sheet edge side of the steel sheet The purpose is to provide a surface stain prevention device.

Edge-side surface stain prevention device of the steel sheet of the present invention for achieving the above object

A drive unit configured to drive the screw shaft 19; A pair of operating parts adapted to be moved to the edge side of the steel sheet 100 by driving the screw shaft 19; And a suction part configured to suck the injection liquid remaining on the edge side of the steel plate 100.

At this time, the operation unit and the housing box 40 is engaged with the screw shaft (19); An operation cylinder 15 fixed to the housing box 40; It is configured to include a roller portion for removing the remaining injection liquid to enter the edge side of the steel sheet 100 by the operation of the operation cylinder 15.

In addition, the drive unit and the sensor 16 to detect the entry of the steel sheet 100; A motor 8 driven by the detection signal of the sensor 16; It is configured to include a screw shaft 19 is connected to the motor 8 to be driven.

In addition, the housing box 40 is fixed to the guide block 18 for allowing the upper and lower rollers 21 and 22 to enter the edge side of the steel sheet 100, the cylinder cylinder is the upper cylinder rod , It is connected to the back of the "c" shaped elastic fixing plate 37 fixed to the bottom of the lower blocks (30, 30a), the roller portion is composed of upper and lower rollers (21, 22) and vertical rollers (28) .

At this time, the upper and lower rollers 21 and 22 are connected to the upper and lower guide bars 35 and 36 formed on the upper and lower blocks 30 and 30a to be rotatably fixed and to the vertical connection spring 29. The outer circumference is contacted by elasticity, and both ends of the vertical roller 28 are fixed to the upper and lower springs 23 and 24 embedded in the square holes formed in the upper and lower guide bars 21 and 22. It is made to be movable by.

In addition, the idle roll 31 is rotatably fixed to the opposing surfaces of the upper and lower blocks 30 and 30a to allow the guide block 18 to pass through when the operation cylinder 15 is operated.

The suction unit is adjacent to the upper and lower rollers (21, 22) and the suction pipe (50, 50a, 50b, 50c) for sucking the injection liquid remaining on the edge side of the steel sheet 100; An air pipe (51, 51a) for transferring the injection liquid sucked from the suction pipe (50, 50a, 50b, 50c); Water collecting tanks 53, 53a, 53b, and 53c for collecting the injection liquid transferred by the air pipes 51 and 51a; Meshes 52 and 52a provided between the air pipes 51 and 51a and the water collecting tank 53; And a suction fan 55 configured to suck air.

Edge-side surface stain prevention device of the steel sheet of the present invention is squeezed (edge) of the steel sheet by the upper, lower rollers and vertical rollers so as to move adjacent to the rear end of the upper and lower wiper rolls to clean the high-quality The plated steel sheet can be produced, and the work can be performed regardless of the thickness and width of the steel sheet, thereby improving the efficiency and productivity of the work.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art may easily implement the technical idea of the present invention. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosed contents may be thorough and complete, and the technical spirit of the present invention may be sufficiently delivered to those skilled in the art.

2 is a perspective view of an edge-side surface stain prevention apparatus of the steel sheet according to an embodiment of the present invention, Figure 3 is a front view of an edge-side surface stain prevention apparatus of the steel sheet according to an embodiment of the present invention .

Hereinafter, the edge-side surface stain prevention apparatus of the steel sheet of the present invention with reference to FIGS.

An edge side surface stain prevention apparatus of a steel sheet according to an embodiment of the present invention has a structure in which devices of the same structure face each other in the width direction both sides of the steel sheet 100 to be advanced.

First, bearing blocks 12 and 12a are fixed to the support 90 on both sides in the width direction of the steel plate 100. The screw shaft 19 is rotatably installed in the width direction of the steel plate 100 across the bearing blocks 12 and 12a, and the screw shaft 19 is fixed to one side of the support 90. It is connected to the drive motor (8).

On the other hand, the reference ring 20 is fixed to the center of the longitudinal direction of the screw shaft 19 and the housing box 40 is provided spaced apart from the reference ring 20 by the same distance.

The housing box 40 provided at both sides of the steel plate 100 in the width direction has support blocks 14 and 14a formed at a lower end thereof, and the support blocks 14 and 14a are provided with the screw shaft 19 and the guide. As the bars 10 and 11 are inserted and engaged, the motor box 8 is driven to rotate the screw shaft 19 so that the housing boxes 40 can be moved at the same distance from each other.

4 is an exploded perspective view of an edge-side surface stain prevention apparatus of a steel sheet according to an embodiment of the present invention. Referring to Figure 4,

A pair of guide rails 45 are respectively spaced apart from each other at upper and lower sides of the inner side of the housing box 40 in a direction parallel to the width direction of the steel sheet. At this time, the upper block 30 and the lower block 30a are provided with guides 43 and 43a inserted in both sides of the guide rail 45 so as to slide inside the housing box 40. It is.

The upper block 30 and the lower block 30a are rotatably provided with a pair of idle rolls 31 on their opposite surfaces. The rear part 38 formed on the elastic fixing plate 37 having a "c" shape is fixed to the rear surfaces of the upper block 30 and the lower block 30a.

Inside the housing box 40, a guide block 18 having a rhombus shape in cross section in the width direction is fixed by a screw bolt 39. The shape of the guide block 18 may be hexagonal or similar. An operation cylinder 15 is installed on the side plate 17 forming the rear surface of the housing box 40, and the cylinder rod of the operation cylinder 15 has a disc-shaped connecting member 41 fixed to an end thereof. It is located inside the housing box 40. The connecting member 41 is fixed to the back of the "c" shaped elastic fixing plate 37 with a bolt.

The upper guide bar 35 and the lower guide bar 36 are fixed to the front of the upper block 30 and the lower block 30a, respectively, and at the front end of the upper guide bar 35 and the lower guide bar 36. The shaft 27 is formed. The upper guide bar 35 and the lower guide bar 36 is preferably formed in a rectangular shape. The upper roller 21 and the lower roller 22 are rotatably fixed to the shaft 27 to enable forward and backward movement by the operation cylinder 15.

The upper guide bar 35 and the lower guide bar 36 are bufferably connected by the vertical connection spring 29, the upper roller 21 and the lower roller 22 of the vertical connection spring 29 Each outer periphery is brought into contact with each other by elasticity. Adjacent to the upper roller 21 and the lower roller 22, the upper guide bar 35 and the lower guide bar 36 is formed with a square hole on the surface facing each other. An upper spring 23 and a lower spring 24 are attached to a square hole formed in the upper guide bar 35 and the lower guide bar 36.

The vertical roller 28 has upper and lower vertical roll shafts 33 and lower vertical roll shafts 34 formed at upper and lower portions thereof, respectively, and the upper vertical roll shaft 33 and the lower vertical roll shaft 34 are respectively disposed at the upper portion. It is connected to the spring 23 and the lower spring 24 so that the vertical roller 28 is operated by elasticity.

On the upper side of the upper roller 21 and the lower side of the lower roller 22, suction pipes 50, 50a, 50b, and 50c are mounted close to the upper and lower rollers 21 and 22, and the suction pipes 50 and 50a. , 50b and 50c are provided at one side of the air pipes 51 and 51a. Meshes 52 and 52a are connected to the air pipes 51 and 51a, and water collecting tanks 53, 53a, 53b, and 53c are mounted to the outside of the housing box 40 at the lower side of the mesh. At the ends of the air pipes 51 and 51a, a suction fan 55 for sucking air is installed.

The operating relationship of the present invention made of such a configuration is as follows.

The upper and lower centers of the upper and lower centers of the steel sheet 100 are squeezed through the upper and lower wiper rolls 400, 400a, 600 and 600a. The sprayed jetting liquid is removed, but the squeezing is not performed in the side space of the thickness of the steel sheet 100, so that the jetting liquid injected to the edge side of the steel sheet 100 is not removed. It is transported remaining on the side.

At this time, the sensor 16 installed adjacent to the steel plate 100 of the upper and lower wiper rolls 400, 400a, 600, and 600a detects the entry of the steel plate, and the motor 8 is driven by the detection signal.

By driving the motor 8, both housing boxes 40 move along the screw shaft 19 toward each other, that is, to both edges of the steel plate 100.

When the upper and lower rollers 21 and 22 approach the edge side of the steel plate 100 during the movement of the housing box 40, the driving of the motor 8 is stopped, and then the operating cylinder 15 is operated to operate the cylinder rod. The elastic fixing plate 37 and the upper and lower blocks 30 and 30a are moved to the edge side of the steel plate 100 as the steel plate 100 is moved to the edge side of the steel plate 100. Accordingly, the upper and lower rollers 21 and 22 are It enters the edge side of the steel plate 100.

That is, the upper and lower blocks 30 and 30a are moved to the edge side of the steel plate 100 by the operation of the operation cylinder 15, and between the idle rolls 31 formed on the upper and lower blocks 30 and 30a. As the rhombus-shaped guide block 18 passes, the upper block 30 and the lower block 30a are spaced apart from each other. Accordingly, a gap is formed between the upper roller 21 and the lower roller 22 so that the upper and lower rollers 21 and 22 are drawn into the edge side of the steel sheet 100.

Even if the width of the steel sheet 100 is not constant, it can correspond to the width of the steel sheet to change by adjusting the forward and backward distance of the operation cylinder 15, so that the steel sheet 100 of various widths without changing equipment in one line It can be processed efficiently.

When the guide block 18 completely passes between the idle rolls 31 formed on the upper and lower blocks 30, the upper and lower blocks 30 and 30a are returned to their original state by the elastic return of the elastic rubber plate 37. As a result, the upper roller 21 and the lower roller 22 are in close contact with the edge side of the steel sheet 100 in a state of being engaged with the edge side of the steel sheet 100.

The upper and lower rollers 21 and 22 are compressed to be always close by the elasticity of the vertical connection spring 29 provided between the upper and lower guide bars, regardless of the thickness of the steel sheet 100 when removing the sprayed liquid. The edge-side surface stain 50 of the steel sheet 100 can be prevented.

When the vertical roller 28 contacts the side part of the steel plate 100, the operation cylinder 15 stops the operation. Since the vertical roller 28 is operated by elasticity in the up, down, front, and rear directions, the vertical roller 28 is installed at both side portions of the steel sheet 100 at an appropriate pressure to facilitate the injection liquid that has flowed as the steel sheet 100 proceeds. It can be removed.

In addition, suction pipes 50, 50a, 50b, and 50c are installed near the upper and lower rollers 21 and 22 at the upper side of the upper roller 21 and the lower roller 22, and the suction tube sucks air. As the suction fan 55 is operated, the sprayed liquid remaining on the steel sheet 100 is sucked and moved to the air pipes 51 and 51a. Subsequently, the injection liquid sucked by the suction pipe and moved to the air pipe is collected into the water collecting tanks 53, 53a, 53b and 53c through the meshes 52 and 52a.

Figure 1a is a perspective view of a conventional water chiller, wiper roll and dryer device

Figure 1b is a side view of a conventional wiper roll

FIG. 1C is an enlarged front view of a portion “A” shown in FIG. 1A to explain that the edge side surface defect of the steel sheet is caused by the conventional wiper roll. FIG.

Figure 2 is a perspective view of the edge (edge) side surface stain prevention apparatus of the steel sheet according to an embodiment of the present invention

3 is a front view of an edge-side surface stain prevention apparatus of the steel sheet according to an embodiment of the present invention

Figure 4 is an exploded perspective view of the edge (side) staining surface prevention apparatus of the steel sheet according to an embodiment of the present invention

Explanation of symbols on the main parts of the drawings

100: galvanized steel sheet 200,200a: upper spray 300,300a: lower spray 400,400a: upper wiper roll 500: surface stain 600,600a: lower wiper roll

700: Wiper roll wear 800: Dryer 8: Motor 10, 11: Guide bar 14, 14a: Support block 15: Operation cylinder

17: side plate 18: guide block 19: screw shaft

21: upper roller 22: lower roller 23: upper spring

24: lower spring 25: bearing (a) 26: bearing (b)

27: axis 28: vertical roller 29: vertical connection spring

30: upper block 30a: lower block 31: idle roll

33: upper vertical roll shaft 34: lower vertical roll shaft 35: lower guide bar

36: upper guide bar 37: elastic fixing plate 38: Hurenji

39: screw bolt 40: housing box 43,43a: guide

45: guide rail 50, 50a, 50b, 50c: suction pipe 51, 51a: air piping

52, 52a: net 53, 53a, 53b, 53c: water collection container 55: suction fan

90: support

Claims (4)

A drive unit configured to drive the screw shaft 19; A pair of operating parts adapted to be moved to the edge side of the steel sheet 100 by driving the screw shaft 19; Characterized in that it comprises a suction portion to suck the injection liquid remaining on the edge side of the steel sheet 100, The operation unit and the housing box 40 is engaged with the screw shaft (19); An operation cylinder 15 fixed to the housing box 40; Edge-side surface smear prevention apparatus of the steel sheet, characterized in that it comprises a roller for entering the edge side of the steel sheet 100 by the operation of the operation cylinder 15 to remove the remaining injection liquid. The method according to claim 1, The drive unit and the sensor 16 to detect the entry of the steel plate 100; A motor 8 driven by the detection signal of the sensor 16; It is configured to include a screw shaft 19 is connected to the motor 8 to be driven, The housing box 40 is fixed with a guide block 18 for allowing the upper and lower rollers 21 and 22 to enter the edge side of the steel sheet 100, The working cylinder 15 is connected to the back of the elastic fixing plate 37 of the "c" shape, the cylinder rod is fixed to the back of the upper and lower blocks (30, 30a), The roller portion is characterized in that the upper and lower rollers (21, 22) and vertical rollers (28) characterized in that the surface side staining prevention device of the steel sheet. The method according to claim 2, The upper and lower rollers 21 and 22 are connected to the upper and lower guide bars 35 and 36 formed on the upper and lower blocks 30 and 30a, and are rotatably fixed and are elastic by the vertical connection spring 29. The outer circumference is in contact, The vertical roller 28 has both ends fixed to the upper and lower springs 23 and 24 embedded in the square holes formed in the upper and lower guide bars 21 and 22 to be movable by elasticity. On the opposing surfaces of the upper and lower blocks 30 and 30a, an idle roll 31 through which the guide block 18 passes through the operation cylinder 15 is rotatably fixed. Edge-side surface stain prevention device of steel sheet. The method according to claim 1, The suction part is adjacent to the upper and lower rollers (21, 22) and the suction pipe (50, 50a, 50b, 50c) for sucking the injection liquid remaining on the edge side of the steel sheet 100; An air pipe (51, 51a) for transferring the injection liquid sucked from the suction pipe (50, 50a, 50b, 50c); Water collecting tanks 53, 53a, 53b, and 53c for collecting the injection liquid transferred by the air pipes 51 and 51a; Meshes 52 and 52a provided between the air pipes 51 and 51a and the water collecting tank 53; Edge-side surface stain prevention apparatus of the steel sheet, characterized in that it comprises a suction fan (55) to suck air.

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