KR100648615B1 - Insulation coating liquid supplying apparatus - Google Patents

Abstract

An apparatus for supplying insulation coating liquid to upper coater pan of a coating instrument is provided to ensure insulation of surface of an electric steel sheet in the coating instrument, and absorb fluctuation of pressure of the coating liquid and feed the liquid to the coater pan with constant flow rate by installing the apparatus near outlet of a feed line for the coating liquid and properly regulating pressure of the liquid. The apparatus comprises: a main body(30) that is connected to end of a feeding line(10) to transport insulation coating solution, and has a hole(38) for feeding the solution to a coater pan(20); a solution outlet(40) that comprises an elongating part(42) which has corrugated form to be contracted and expanded and is fixed inside the main body(30) at one end faced to the feeding line(10), and a solution discharging part(44) which is connected to the elongating part and has multiple grooves(45) extended in length direction; and a spring(50) for generating elastic force to keep the solution discharging part(44) in a constant position.

Description

Insulation coating liquid supplying apparatus

1 is a schematic configuration diagram showing a main portion of a conventional insulation coating equipment;

2 is a drawing of a problem of the prior art;

Figure 3 is a perspective view showing a state in which the insulating coating solution supply apparatus according to the present invention is installed in the pipe for supplying the insulating coating solution to the coater pan;

4 is a sectional view showing an insulating coating solution supply device of the present invention;

5 is an exploded perspective view showing the main part of the present invention.

※ Explanation of symbols about main part of drawing ※

10: solution supply line 12: insulating coating solution

20: coater fan 22: bulkhead

23: groove 30: main body

31: groove 32: cover

34: control shaft 36: handle

38: solution supply hole 40: solution outlet

42: stretching portion 44: solution discharge portion

45: through groove 50: spring

60: stopper 70: foreign material removal port

The present invention relates to an insulating coating solution supply device, and more particularly to an insulating coating solution that absorbs the pressure variation of the insulating coating solution to be supplied to the coater pan at a constant flow rate and prevents the discharge portion of the insulating coating solution from being blocked. It relates to a supply device.

In general, high viscosity inorganic insulating coating solution is supplied to the coater pan through a solution supply line equipped with a pump.

1 is a schematic configuration diagram showing a main portion of a conventional insulation coating equipment, the upper and lower coater rolls 110, 120 and the upper and lower coater rolls installed on the upper and lower portions of a path through which the strip S travels. (110) and (120) are respectively installed to rotate to adjust the coating rolls 112 and 122 to adjust the coating thickness, these adjustment rolls (112) and 122 are respectively installed to rotate to engage the upper and lower coater fan The upper and lower solution pick-up rolls 114 and 124 have a lower portion deposited on (116) and 126.

In addition, the upper and lower coater pans 116 and 126 are transferred through the solution supply line 130 and the insulating coating solution 140 discharged from the solution discharge pipe 132 formed at the end of the solution supply line 130. It has a container shape to store it.

According to the arrangement thus configured, the insulating coating solution 140 stored in the upper and lower coater pans 116 and 126 is buried on the outer surface of the upper and lower solution pick-up rolls 114 and 124, and the upper and lower solution pick-ups. The insulating coating solution 140 buried on the surfaces of the rolls 114 and 124 is coated on the surface of the strip S through the control rolls 112 and 122 and the upper and lower coater rolls 110 and 120.

In the insulation coating equipment, it is preferable that the level of the insulation coating solution 140 supplied through the solution discharge pipe 132 and stored in the upper and lower coater pans 116 and 126 is stably maintained.

When the level of the insulating coating solution 140 is too low, the appropriate amount of the insulating coating solution 140 does not adhere to the surfaces of the solution pick-up rolls 114 and 124, resulting in an uncoated film on the strip (S). When the level of the insulating coating solution 140 is so high that it overflows to the top of the coater pans 116 and 126, it contaminates the surrounding equipment. In particular, since the upper coater pan 116 is located above the strip S, This is because the insulating coating solution 140 overflowed from the upper coater pan 116 falls to the upper surface of the strip S, causing a problem of very poor surface quality of the strip S.

Conventionally, a method of controlling the pressure of the insulating coating solution 140 supplied to the coater pans 116 and 126 through the solution supply line 130 using a pump (not shown) installed in the solution supply line 130. As a result, the insulation coating solution 140 of the coater pans 116 and 126 was maintained at an appropriate level.

That is, when the insulating coating solution 140 of the coater pans 116 and 126 rises above a predetermined level, the pressure of the insulating coating solution 140 formed by the pump is lowered to the coater pans 116 and 126. When the amount of the insulating coating solution 140 supplied is reduced and the insulating coating solution 140 of the coater pans 116 and 126 falls below a predetermined level, the pressure of the insulating coating solution 140 formed by the pump is reduced. Increase the amount of the insulating coating solution 140 is supplied to the coater pan (116, 126).

However, maintaining the level of the insulating coating solution 140 of the coater pans 116 and 126 by controlling the pressure of the insulating coating solution 140 requires a very difficult control technique, in particular, the insulating coating solution 140 When the pressure is excessively high, the insulating coating solution supplied to the coater pan scatters and pollutes the surrounding equipment. When the pressure of the insulating coating solution 140 is excessively low, the solution supply line 130 and the solution discharge pipe ( 132) had a problem of being clogged by a high viscosity inorganic insulating coating solution.

Therefore, the present invention is to solve the above-mentioned conventional problems, it is installed in the area where the insulating coating solution is discharged to adjust the pressure of the insulating coating solution in an appropriate range to maintain the insulating coating solution level in the coater pan at an appropriate level It is also an object of the present invention to provide an insulating coating solution supply device that can prevent the contamination of the surrounding equipment by scattering of the insulating coating solution.

As a technical configuration for achieving the above object, the present invention, in the apparatus for supplying the insulating coating solution to the upper coater pan of the coater equipment for ensuring insulation on the surface of the electrical steel sheet, the transfer of the insulating coating solution A main body connected to an end of the solution supply line and having a solution supply hole for discharging the insulating coating solution to the coater pan; It is formed to have a corrugated shape and is expanded and expanded by pressure, and the solution supply line has an expansion and contraction end portion is fixed to the inside of the main body and a plurality of through grooves connected to the expansion and elongated longitudinally formed Solution outlet made up; And a spring for providing an elastic force to maintain the solution discharge part at a predetermined position.

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 state in which the insulating coating solution supply apparatus according to the present invention is installed in the pipe for supplying the insulating coating solution to the coater pan, Figure 4 is a cross-sectional view showing the insulating coating solution supply apparatus of the present invention.

Apparatus 1 of the present invention is installed at the end of the solution supply line 10 is located above one side of the coater pan (20).

The solution supply line 10 supplies the inorganic insulating coating solution having a high viscosity to the coater fan 20 by driving a pump (not shown).

The coater fan 20 has a container shape with an open top so as to contain a predetermined amount of insulating coating solution.

Inside the coater fan 20, the insulating coating solution discharged from the apparatus 1 of the present invention flows rapidly toward the solution pick-up roll 2 by separating the region where the apparatus 1 of the present invention is located from other regions. The barrier rib 22 is installed to prevent the barrier rib 22 from being formed, and the barrier rib 22 is formed with a plurality of slit-shaped grooves 23 having a predetermined length in the horizontal direction and spaced apart by a predetermined interval in the vertical direction.

The solution pick-up roll (2) is installed so that the lower part is immersed in the insulating coating solution existing in the coater pan 20, this solution pick-up roll (2) is engaged with the adjusting roll (3) for adjusting the coating thickness It is connected in a rotational form, the control roll (3) is connected in a form in which the cotter roll (4) for coating the solution on the strip (S) is engaged by the rotation.

The apparatus 1 of the present invention has a hollow cylindrical body 30 in which the solution supply line 10 extends.

The main body 30 is fixed so that one end is connected to the end of the solution supply line 10 and the other end is sealed by a disc-shaped cover (32).

In addition, a screw shaft-shaped adjusting shaft 34 penetrates through the central portion of the cover 32, and the adjusting shaft 34 is provided with a handle 36 to rotate the adjusting shaft 34 from the outside. It is configured to be.

At this time, a male thread is formed on the outer surface of the adjusting shaft 34, and the hole of the cover 32 into which the adjusting shaft 34 is fitted is formed to have a female thread, thereby rotating the adjusting shaft 34. The shaft 34 is configured to move toward the solution supply line 10 or to move in the opposite direction.

The solution discharge port 40 having a cone shape is installed inside the main body 30 and is disposed to have a shape in which the outer diameter is reduced in a direction away from the solution supply line 10.

The solution discharge port 40 is located on the solution supply line 10 side and has an elastic part 42 having a form that can be folded by an external force, and is located opposite the solution supply line 10 and at the end of the elastic part 42. It consists of a solution discharge portion 44 extending integrally.

The stretchable portion 42 has a configuration that is stretched when the cross section is bent in a zig-zag shape when an external force is applied, this stretched portion 42 is fixed to the inner diameter portion of the main body 30 end of the solution supply line (10) It is fixed to the ring-shaped fixture 41 provided.

The solution discharge portion 44 has a slit-type through groove 45 formed to have a long length in the direction parallel to the longitudinal direction of the main body 30, the through groove 45 is the circumference of the solution discharge portion 44 Several are formed at regular intervals along the direction.

In addition, a means for adjusting the position of the solution discharge portion 44 is provided inside the main body 30, the spring 50 for providing an elastic force so that the solution discharge portion 44 is maintained in a predetermined position, and It includes a stopper 60 for limiting the degree to which the solution discharge portion 44 moves toward the cover (32).

The spring 50 is installed to the outside of the solution discharge portion 44 in a plurality of spaced apart a predetermined interval along the circumferential direction. The installation structure of the spring 50 may vary, and as an example, in the embodiment of the present invention, the spring 50 and the stopper 60 are connected to each other. This will be described later.

The stopper 60 is configured to rotatably receive an end of the adjustment shaft 34 to move together with the adjustment shaft 34.

That is, the stopper 60 is formed with a hemispherical groove 62 in an approximately center portion of the surface of the adjustment shaft 34, and is fitted into the groove 62 at the end of the adjustment shaft 34 to be rotatable. Hemisphere insertion hole 35 is securely formed.

In addition, one end of each of the springs 50 is fixed to the stopper 60, and the other end is fixed to the boundary between the expansion and contraction portion 42 and the solution discharge portion 44 of the solution outlet (40) . Preferably, the bracket 64 is fixedly installed in a form surrounding the boundary between the expansion and contraction portion 42 and the solution discharge portion 44 of the solution discharge port 40, and the spring 50 is attached to the bracket 64. End) is fixed.

The stopper 60 and the bracket 64 are formed to have an outer diameter size approximately the same as the inner diameter of the main body 30 or slightly smaller to be movable along the longitudinal direction of the main body 30, preferably the stopper 60. There is no gap formed between the outer diameter portion of the body and the inner diameter portion of the body 30 and the inner diameter portion of the bracket 64 and the inner diameter portion of the body 30 to limit the passage of the insulating coating solution.

In addition, a plurality of balls 66 are rotatably installed at the outer diameter portions of the stopper 60 and the bracket 64, and the balls 66 slightly protrude from the outer diameter portions of the stopper 60 and the bracket 64. The ball 66 is inserted into the groove 31 which can be rotated to move is formed in a predetermined length along the longitudinal direction in the inner diameter portion of the main body 30.

In addition, the stopper 60 is provided with a foreign material removal port 70, the foreign material removal port 70 has a long rod shape or a rod shape.

The foreign material removal port 70 is preferably elastic, one end is fixed to the stopper 60, the other end is bent so that the bent portion is fitted into the through groove 45 of the solution discharge portion (44).

In addition, the main body 30 of the present invention has a plurality of solution supply holes 38 formed therethrough so that the insulating coating solution may be discharged toward the coater pan 20 at the lower portion, that is, the coater pan 20 side.

The operation of the present invention having the above configuration will be described.

The insulating coating solution 12 which is transferred through the solution supply line 10 by maintaining a proper pressure by the solution delivery pump (not shown) is supplied into the body 30 connected to the solution supply line 10.

The insulation coating solution 12 supplied into the main body 30 is first supplied into the solution outlet 40, and the solution outlet 40 is expanded and contracted by the pressure of the insulation coating solution 12. It extends in a direction away from the solution supply line 10 or rises in the opposite direction.

The expansion and contraction of the expansion and contraction portion 42 is caused by the difference between the force applied to the solution outlet 40 by the pressure of the insulating coating solution 12 and the force supporting the solution outlet 40 by the spring 50. do. That is, when the force of the former is greater than the latter force, the stretching portion 42 is extended and the solution discharge portion 44 connected thereto is moved toward the stopper 60, and when the force of the former is smaller than the latter force, the stretching portion ( 42 is contracted and the solution discharge portion 44 connected thereto is moved in a direction away from the stopper 60.

When the expansion and contraction portion 42 is expanded and contracted, a change occurs in the pressure of the insulation coating solution 12 introduced into the solution outlet 40, and the expansion and expansion of the expansion and contraction portion 42 decreases the pressure of the insulation coating solution. Shrinkage causes the pressure of the insulating coating solution to increase.

Therefore, the instantaneous pressure fluctuation of the insulating coating solution flowing into the solution outlet 40 is absorbed by the expansion and contraction portion 42, which is caused by the excessive pressure increase and the phenomenon of the solution being discharged into the coater pan 20 and the excessive pressure reduction. This prevents the solution from stagnation, so that a constant amount of solution is always supplied to the coater pan 20 to maintain the solution level in the coater pan 20 at an appropriate level.

In addition, when the through groove 45 of the solution discharge part 44 is blocked by a solution, foreign matter, etc., the foreign material removal opening inserted into the through groove 45 by the operation of the handle 36 or the expansion / retraction action of the elastic part 42 is removed. 70 moves along the through groove 45 to remove a solution or foreign matter blocking the through groove 45.

Then, the adjustment shaft 34 is moved by the operation of the handle 36, and the stopper 60 is moved by the movement of the adjustment shaft 34, and this operation causes the spring 50 to contract or expand. The insulating coating solution of an appropriate pressure is supplied to the coater fan 20.

According to the insulating coating solution supply apparatus according to the present invention as described above, by absorbing the pressure fluctuation of the insulating coating solution by the corrugated expansion and contraction portion and the spring elastically supported so that the insulating coating solution of a constant flow rate is supplied to the coater pan It has an excellent effect of maintaining the level of the insulating coating solution in the pan at a constant level.

In addition, the through groove of the solution discharge portion from which the solution is discharged is cleaned by the foreign material removal port to prevent the insulating coating solution and the foreign matter contained therein from blocking the through groove.

Thus, the conventional problem that the insulating coating solution is overcoated and uncoated on the strip is solved.

Claims (4)

In the device for supplying the insulating coating solution to the upper coater pan of the coater facility for ensuring insulation on the surface of the electrical steel sheet, A main body 30 connected to an end of the solution supply line 10 for transferring the insulation coating solution and having a solution supply hole 38 for discharging the insulation coating solution to the coater pan 20; It is formed to have a corrugated shape, and stretched and expanded by pressure, and the end portion of the solution supply line 10 is fixed to the elastic part 42 fixed to the inside of the main body 30, and is connected to the elastic part 42 in the longitudinal direction. Solution discharge port 40 consisting of a solution discharge portion 44 having a plurality of through grooves 45 formed to be long; And Insulating coating solution supply device characterized in that it comprises a spring (50) to provide an elastic force to maintain the solution discharge portion (44) at a predetermined position. The stopper 60 of claim 1, wherein the stopper 60 is installed inside the body 30 so as to be disposed on a movement path of the solution discharge part 44, and supports an end of the spring 50. Insulation coating solution supply device characterized in that it further comprises a control shaft (34) for adjusting the position. According to claim 2, wherein one end is fixed to the stopper 60 and the other end is bent so that the bent end is further comprises a foreign material removal port 70 is fitted into the through groove 45 Insulation coating solution supply device. The insulating coating solution supply device according to any one of claims 1 to 3, wherein the solution discharge port (40) is formed to have a cone shape whose diameter decreases away from the solution supply line (10).

Images