KR200371636Y1 - Roll surface dust removal apparatus in the zinc galvanizing bath - Google Patents

Abstract

The present invention relates to a roller surface debris removal device inside a galvanizing bath that can remove foreign substances adhering to the surface of the roller installed inside the hot-dip galvanizing bath so as to guide the steel sheet without stopping the equipment. A pair of fixed bases 10 provided on both sides of the upper surface of the galvanizing bath 1, and both ends are fitted into the interior of the fixed base 10 so as to be positioned in the width direction on the upper surface of the galvanizing bath 1 On one side, a moving frame (11) installed to protrude the bracket 12, the moving frame (11) connected to the bracket (12) so that the moving frame (11) is moved in the width direction of the galvanizing bath (1), and Sink roll debris removing means 20 installed through the moving frame 11 to remove the substance attached to the surface of the sink roll 3 inside the galvanizing tank 1 and the guide inside the galvanizing tank 1. Material attached to the surface of the roll (4) It is to include a guide roll foreign matter removal means 30 installed through the moving frame 11 to remove.

Description

Roller surface dust removal apparatus in the zinc galvanizing bath

The present invention relates to an apparatus for removing foreign matter from a roller surface inside a galvanizing bath, and more particularly, to remove foreign substances adhering to the surface of a roller installed inside a hot-dip galvanizing bath to guide a steel plate without stopping the equipment. The present invention relates to a roller surface foreign material removal device in a plating bath.

In general, the continuous hot dip galvanizing process of the cold rolling mill of the steel mill is passed through the interior of the galvanizing bath (1) as the annealing steel sheet as shown in Figure 1 molten zinc contained in the galvanizing bath (1) It is a process of plating (2) on the surface of the steel plate 7.

At this time, the steel sheet 7 is supplied to the inside of the galvanizing tank 1 while being guided by the snouter 5, and then the traveling direction is changed to the upper portion in the state in which it is wound on the sink roll 3, and the steel sheet ( 7) is moved to the top while being guided by the guide roll (4) and the steel sheet 7 discharged to the outside of the galvanizing bath (1) passes through the air knife (6) while having a constant thickness on the surface of the steel sheet (7) Zinc is to be plated.

As described above, when zinc is plated on the surface of the steel sheet 7, iron or other foreign matter adhering to the surface of the steel sheet 7 reacts with the molten zinc 2 in the galvanizing bath 1 to produce foreign matter. Some of the foreign matters, which have a light specific gravity, rise to the top and others float together with the molten zinc (2) contained in the galvanizing bath (1), and then between the steel sheet (7) and the sink roll (3) or between the steel sheet (7) and the guide. It flows in between the rolls 4 and adheres to the surface of the sink roll 3 or the guide roll 4.

On the other hand, foreign matter adhering to the sink roll 3 or the guide roll 4 grows as time passes and proceeds in contact with the surfaces of the sink roll 3 and the guide roll 4 of the steel sheet 7. The surface of the steel sheet (7) to be formed a scratches of the irregularities to generate a defective product.

Therefore, in order to improve the quality of the product, foreign substances generated on the surfaces of the sink roll 3 and the guide roll 4 are removed, and conventionally, the sink roll 3 or the guide roll 4 in a state where the facility is stopped. There was a problem that the operation rate of the facility is lowered because the foreign substances generated on the surface of the to remove.

In order to solve this problem, there is a case of using a small braided jig with a small blade to remove the foreign matter as the means to remove the foreign matter during operation of the equipment, but the tool is held by the operator at a high temperature (about 460 degrees Celsius) The braid is attached to the surface of the sink roll 3 or the guide roll 4 in the upper part of the galvanizing tank 1 and the foreign material is to be removed while moving the tool. There is a risk of a safety accident because the work is performed in this uncomfortable and high temperature environment, in particular, the working environment is very poor due to the noise generated in the air knife 6 has a problem of increasing the fatigue of the worker.

The present invention is designed to solve the above problems, the purpose of which is to quickly and easily remove the foreign matter generated on the surface of the roller (sink roll, guide roll) inside the galvanizing bath in the state of continuous operation of the equipment The present invention provides a roller surface foreign matter removal device inside a galvanizing bath that can prevent defects in advance.

1 is a cross-sectional view showing a general galvanizing bath.

Figure 2 is an exploded perspective view showing a foreign material removal apparatus according to the present invention.

Figure 3 is a perspective view showing a foreign material removal apparatus according to the present invention.

Figure 4 is a cross-sectional view showing a state in which the foreign matter removal apparatus according to the present invention is installed in the galvanizing bath.

Figure 5 is a plan view showing the operating state of the foreign matter removal apparatus according to the present invention.

※ Explanation of symbols about main part of drawing ※

1: zinc plating tank 4: guide roll

10: fixed base 11: moving frame

12: bracket 14: fixed shaft

15: moving cylinder 20: sink roll foreign matter removal means

21: first cylinder 22: first support arm

23: first rotating arm 24: first supporting plate

25: first braid 26: first guide plate

30: guide roll foreign material removal means 31: the second cylinder

32: second support arm 33: second rotary arm

34: 2nd support plate 35: 2nd braid

36: second guide plate

Referring to the characteristic configuration of the present invention for achieving the above object is as follows.

The roller surface debris removal device in the galvanizing bath according to the present invention includes a pair of fixed bases installed on both sides of the upper surface of the galvanizing bath, and both ends are fitted inside the fixed base so as to be positioned in the width direction on the upper surface of the galvanizing bath. On one side there is a moving frame installed to protrude the bracket, a moving cylinder connected to the bracket so that the moving frame is moved in the width direction of the galvanizing bath, and the moving frame to remove the material attached to the surface of the sink roll inside the galvanizing bath. The sink roll foreign matter removal means is installed, and the guide roll debris removal means installed through the moving frame to remove the substance attached to the guide roll surface inside the galvanizing bath.

Referring to the present invention having such characteristics in detail as follows.

Figure 2 is an exploded perspective view showing a foreign substance removing apparatus according to the present invention, Figure 3 is a perspective view showing a foreign substance removing apparatus according to the present invention, Figure 4 is a cross-sectional view showing a state in which the foreign substance removing apparatus according to the present invention is installed in the galvanizing bath. 5 is a plan view showing the operating state of the foreign matter removing apparatus according to the present invention.

As described herein, in the present invention, fixed bases 10 are respectively provided on both sides of the upper surface of the galvanizing bath 1, and the moving frame 11 is positioned in the width direction of the upper surface of the galvanizing bath 1. Although provided, both ends of the moving frame 11 are fitted inside the fixed base 10, and the bracket 12 protrudes from one side of the upper surface of the moving frame 11.

On the other hand, any one side of the pair of fixed base 10 is provided with a moving cylinder 15 for moving the moving frame 11 in the width direction of the galvanizing bath 1, the moving cylinder 15 is It is connected to the bracket 12.

The moving frame 11 includes a sink roll debris removing means 20 for removing a substance attached to the surface of the sink roll 3 inside the galvanizing bath 1, and a guide roll inside the galvanizing bath 1. (4) The guide roll debris removal means 30 for removing the substance adhering to the surface is provided.

The sink roll debris removing means 20 is provided with a pair of first cylinders 21 on the upper surface of the moving frame 11, and the first rotating arm 23 is installed on the first cylinders 21, respectively. The first rotary arm 23 is rotatably installed at an end of the first support arm 22, and the first support arm 22 is connected via a fixed shaft 14.

In addition, a first support plate 24 is provided at a lower end of the first rotary arm 23, and a plurality of first braids 25 are provided at equal intervals on an upper surface of the first support plate 24.

First guide plates 26 are provided at both ends of the first support plate 24 such that the tip portion of the first braid 25 is spaced apart from the surface of the sink roll 3.

The guide roll debris removing means 30 is provided with a pair of second cylinder 31 on the upper surface of the moving frame 11, the second rotary arm 33 is installed on the second cylinder 31, respectively. The second rotary arm 33 is rotatably installed at the end of the second support arm 32, and the second support arm 32 is connected to the fixed shaft 14 via the fixed shaft 14.

In addition, a second support plate 34 is provided at the lower end of the second rotary arm 33, and a plurality of second braids 35 are provided at equal intervals on the upper surface of the second support plate 34.

The second guide plate 36 is provided at both ends of the second support plate 34 so that the distal end portion of the second braid 35 is spaced apart from the surface of the guide roll 4.

Referring to the present invention configured as described in detail as follows.

First, when foreign matter is not attached to the surface of the sink roll 3 or the guide roll 4, the first braid 25 and the second braid 35 are formed on the surfaces of the sink roll 3 and the guide roll 4, respectively. The first cylinder 21 and the second cylinder 31 are operated in the reverse direction so as to be separated from each other. When the steel sheet 7 is advanced in this state, the steel sheet 7 is galvanized through the snouter 5. 1) After being guided by the sink roll (3) and the guide roll (4) installed in the will be plated to a certain thickness in the air knife (6).

When foreign matter is removed from the sink roll 3 in such a state, the first braid 25 is brought close to the sink roll 3. In this case, when the first cylinder 21 is operated in the forward direction, the first rotation is performed. Since the arm 23 is rotated about the end of the first support arm 22, the first rotation arm 23 and the first support plate 24 are moved toward the sink roll 3.

When the first support plate 24 is moved and the first guide plate 26 provided at both ends of the first support plate 24 is in contact with the sink roll 3, the first support plate 24 is no longer moved. In this case, the first braid 25 is to maintain the state close to the surface of the sink roll (3).

Alternatively, when the foreign matter is removed from the guide roll 4, the second braid 35 is brought close to the guide roll 4. In this case, when the second cylinder 31 is operated in the forward direction, the second rotating arm ( 33 is rotated about the end of the second support arm 32, so that the second rotary arm 33 and the second support plate 34 is moved to the guide roll (4) side.

When the second support plate 34 is moved to contact the guide roll 4 with the second guide plate 36 provided at both ends of the second support plate 34, the second support plate 34 is no longer moved. In this case, the second braid 35 is to maintain the state close to the surface of the guide roll (4).

As described above, when the moving cylinder 15 is operated in the forward / reverse direction while the first braid 25 or the second braid 35 is in contact with the sink roll 3 or the guide roll 4, the moving frame (11) is to be continuously moved in the width direction of the galvanizing bath (1), guide rolls 13 may be provided at both ends for smooth movement of the moving frame (11).

When the moving cylinder 15 is operated in such a state, the first braid 25 and the second braid 35 are in close proximity to the surfaces of the sink roll 3 and the guide roll 4, and the sink roll 3 and the guide. The foreign material generated on the surface is removed while reciprocating in the width direction of the roll (4), the moving distance of the moving frame 11 is the sink if the first braid 25 and the second braid 35 is more than the interval installed The foreign matter adhering to the surfaces of the roll 3 and the guide roll 4 can be removed.

As such, the present invention allows the user to quickly and easily remove foreign materials attached to the surface of the sink roll and guide roll installed inside the galvanizing bath to guide the steel sheet when zinc is coated on the surface of the steel sheet without stopping the equipment. Therefore, it is possible not only to protect the worker from safety accidents, but also has a unique effect of preventing quality defects due to foreign substances in advance.

Claims (4)

A pair of fixed bases 10 provided on both sides of the upper surface of the galvanizing bath 1, and both ends are fitted into the interior of the fixed base 10 so as to be positioned in the width direction on the upper surface of the galvanizing bath 1 On one side, a moving frame (11) installed to protrude the bracket 12, the moving frame (11) connected to the bracket (12) so that the moving frame (11) is moved in the width direction of the galvanizing bath (1), and Sink roll debris removing means 20 installed through the moving frame 11 to remove the substance attached to the surface of the sink roll (3) inside the galvanizing tank (1) Roller surface debris removal device. According to claim 1, The sink roll foreign matter removing means 20 and the first rotary arm 23 is connected to be operated by a pair of first cylinder 21 installed on the upper surface of the moving frame 11, A first support arm 22 supporting the first rotary arm 23 and connected through a fixed shaft 14, a first support plate 24 connected to a lower end of the first rotary arm 23, Both ends of the first support plate 24 such that the plurality of first braids 25 provided on the upper surface of the first support plate 24 at equal intervals and the distal ends of the first braids 25 are spaced apart from the surface of the sink roll. Roller surface foreign matter removal device inside the galvanizing bath, characterized in that it comprises a first guide plate (26) respectively installed in the. The method of claim 1, further comprising a guide roll debris removal means 30 installed through the moving frame 11 to remove the material attached to the surface of the guide roll (4) inside the galvanizing tank (1). Roller foreign material removal device in the galvanizing bath characterized in that. According to claim 3, The guide roll debris removing means 30 and the second rotary arm 33 is connected to be operated by a pair of second cylinder 31 provided on the upper surface of the moving frame 11, A second support arm 32 supporting the second rotary arm 33 and connected via a fixed shaft 14, a second support plate 34 connected to a lower end of the second rotary arm 33; Both end portions of the second support plate 34 such that the plurality of second braids 35 provided on the upper surface of the second support plate 34 at equal intervals and the distal ends of the second braids 35 are separated from the surface of the guide roll. Roller surface foreign matter removal device inside the galvanizing bath, characterized in that it comprises a second guide plate (36) respectively installed in the.