KR100803986B1 - Device for preventing process secede of strip - Google Patents

Abstract

SUMMARY OF THE INVENTION An object of the present invention is to provide a center guide of a strip capable of detecting and correcting the meandering of the strip at the deflector roll due to shots, shot powder and scale fragments on the strip. Is fixed to the bottom and the fixed base through which the strip exits from the shotbox passes through, and the support consisting of a cylinder installed on the upper side of the fixed base; And a moving frame to which the rod of the cylinder is connected and rotatably connected to the fixed base to the left and right, and a rotatable first deflector roll rotatably fixed to the center of the moving frame so that the strip passes along a curved surface. It includes a roll part made up.

Strip, Descaling, Shotball, Tilting, Sensor

Description

Device for preventing process secede of strip

1 is a perspective view of the center guide device of the strip according to the invention.

Figure 2 is an exploded perspective view showing the center guide device of the strip according to the present invention.

Figure 3 is a perspective view showing a part of the annealing pickling line of a conventional stainless strip.

Explanation of symbols on the main parts of the drawings

10: support 11: support

12: fixed base 13: cylinder

14: fork bar 18: control panel

19: alarm 20: support

21: channel 23: idle roller

24: support roller 25: fixed stand

30: roll part 31: moving frame

32: first deflector roll 33: bearing block

34: guide bar 35: air supply pipe

36: air nozzle 40: connecting rod

The present invention relates to a stainless steel manufacturing equipment, and more particularly to a center guide device of the strip to prevent the stripping of the strip due to the shot ball processing the scale generated on the strip.

In general, the stainless manufacturing process is the process of annealing the strip hot-rolled cast, followed by cold rolling and annealing again to obtain a stainless with the desired gloss.

In this process, the scale is removed by projecting a shotball onto the surface of the strip which has been annealed using a descaler to remove the scale attached to the strip before the pickling operation is performed.

By crushing the scale layer formed on the surface of the strip by the shot projection process, the acid solution can easily penetrate the surface of the strip during the pickling operation of the strip so that the scale layer can be more efficiently peeled off.

In FIG. 3, the exit side of the conventional descaler is shown in perspective view.

The strip S exiting the descaler 1 is shifted in the feed direction by the deflector roll 2 to proceed to the pickling bath.

However, the shotball projected inside the descaler is not completely recovered inside the descaler, but remains on the surface of the strip and is caught between the deflector roll and the strip. As a result, a deviation occurs between the strip and the deflector roll, causing the strip to lean to one side of the deflector roll.                         

As a result, there is a problem that the equipment is broken or breakage of the strip occurs.

The present invention has been made to solve the problems of the prior art, the object of which is to detect the meandering of the strip in the deflector roll by shot ball, shot powder and scale pieces buried in the strip can be corrected at the same time To provide a center guide of the strip.

In order to achieve the above object, the center guide device of the strip of the present invention is fixed to the floor and the fixed base through which the strip exits from the shotball box passes, and the support portion consisting of a cylinder installed on the upper side of the fixed base; And a moving frame to which the rod of the cylinder is connected and rotatably connected to the fixed base to the left and right, and a rotatable first deflector roll rotatably fixed to the center of the moving frame so that the strip passes along a curved surface. It includes a roll part made up.

And in order to detect the deflection of the strip, a plurality of detection sensors for detecting both edges of the strip is installed and the sensor installation member is installed connected to the support; And a control panel connected to the plurality of sensing sensors and the cylinder, and operating the cylinder with a sensing signal input to the control panel according to the sensing of the plurality of sensing sensors to rotate the first director roll left and right. desirable.

In addition, the rail is fixed to the lower end of the moving frame, the support roller corresponding to the rail is installed on the fixed base for smooth rotation of the moving frame when the moving frame is rotated by the cylinder, the lower end of the moving frame A body formed with an inclined edge and formed with a curvature corresponding to a radius of rotation of the moving frame at an inclined edge thereof, and a body having an inner channel corresponding to the guide bar toward a central side of the fixed base, and an upper surface of the body It is preferable that a support having a structure in which a plurality of idle rollers are installed at a side thereof is installed at the fixed base.

In addition, in order to remove the shot ball and shot powder on the strip, a plurality of air supply pipe is disposed transversely in the upper portion of the moving frame, a plurality of air nozzles and control valves are installed in the plurality of air supply pipe It is preferable.

Hereinafter, a preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings. 1 is a perspective view showing a center guide device of the strip according to the invention, Figure 2 is an exploded perspective view showing a center guide device of the strip according to the invention.

As can be seen from the figure, the center guide of the strip consists of a support 10 and a roll provided in the support.

The support portion 10 includes a plurality of supports 11 which are erected perpendicular to the floor, a fixed base 12 fixed to the ends of the plurality of supports 11, a support provided on the lower front surface of the fixed base 12, and It includes a roller and a cylinder 13 installed on the upper side of the fixed base 12.

Here, each of the plurality of supports is provided with a sensor mounting member. The sensor mounting member has a plurality of fork bars 14 are formed in a fork shape so that the script S passes between the plurality of fork bars 14. In addition, three pairs of detection sensors corresponding to each other are installed above and below the plurality of fork bars.

The first detecting sensors 15a and 15b provided on the innermost side of these detecting sensors are installed to always detect the exact position movement of the strip S, and the second detecting sensors 16a and 16b provided beside them are provided. Detecting that the strip (S) has begun to be started, the third sensing sensor (17a) (17b) installed on the outermost side to prevent damage to the equipment or damage of the strip (S) due to the extreme tilt of the strip (S) Is installed.

These sensors are connected to the control panel 18.

The control panel 18 is connected to the above-described cylinder 13 as well as the above-described sensor to adjust the forward and backward operation of the cylinder 13 according to the signal input from the sensor. In addition, the alarm panel 19 is connected to the control panel 18 to warn excessive pulling of the strip (S).

The fixed base 12 is fixed inclined with respect to the support 11, the center is formed in a rectangular frame shape through which the strip (S) passes.

The support body 20 installed on the lower front surface of the fixed base 12 includes a body 22 having an inner channel 21 formed at a central side of the fixed base 12, and a plurality of upper and one side surfaces of the body 22. The idle roller 23 of the structure is installed.

The support 20 is installed at an adjacent position of the corner of the fixed base to support the corner of the moving frame to be described later.

The support roller 24 installed between the two supports 20 supports the lower end of the moving frame, which will be described later.                     

And the fixing stand 25 is fixed to the upper center of the fixing base 12.

A bolt 26 is fixed to the end of the holder 25, and the bolt 26 is inserted into an insertion hole to be described later, and then the washer 27 and the binding nut 28 are fastened.

The roll unit 30 rotatably installed on the fixing stand 25 includes a moving frame 31 and a first deflector roll 32 fixed to the center of the moving frame 31.

Rotating shafts on both sides of the first deflector roll 32 are supported by a bearing block 33 fixed to the moving frame 31.

The moving frame 31 is formed in the shape of a square frame, the bottom edge is formed to be inclined, and the guide bar 34 located in the channel of the support 20 is fixed to the inclined edge thereof.

The side of the guide bar 34 is formed with a curvature corresponding to the radius of rotation of the moving frame 31.

A plurality of air supply pipes 35 are disposed across the transverse direction in the upper part of the moving frame 31. The strip S passes between the plurality of air supply pipes 35. A plurality of air nozzles 36 are installed in the plurality of air supply pipes 35, and a control valve 37 is also installed to adjust the amount of air supplied to the air supply pipes 35.

The rail 38 which abuts on the support roller 24 is fixed to the lower end of the moving frame 31.

The connection rod 40 having the insertion hole 39 is fixed to the upper end of the moving frame 31, and the bolt 26 is inserted into the insertion hole 39.

The upper end of the moving frame 31 is hinged to the rod end of the cylinder 13 described above.                     

Meanwhile, the second deflector roll 41 and the third deflector roll 42 are rotatably installed on the front and rear bottoms of the support 11 described above.

The center guide device according to the present invention configured as described above has the following actions.

Two shot ball throwing fans 9 installed in the shot box 8 project the shot balls to crush the scale formed on the surface of the strip S.

The shot ball stuck between the scale crushing layers on the upper strip S travels to the first deflector roll 32 or the powder of the broken short balls travels along the strip S to the first deflector roll 32. When the surface of the first deflector roll is in contact with the shot ball (or shot powder), the strip S is directed toward the shot free shot (or shot powder).

At this time, the first detection sensor (15a, 15b) of the three pairs of detection sensors installed in the fork bar 14 detects the edge of the strip (S) that is normally moving.

Then, when the second detection sensor 16a located on the right side (relative to FIG. 1) of the second detection sensors 16a and 16b detects the strip S that is pulled by the shot ball (or shot powder), The monitoring signal is sent to the control panel 18, and the control panel 18 notifies the alarm 19 that the tilt is occurring.

At the same time, the control panel 18 sends a signal to the cylinder 13 to the reverse operation to pull the frame 31 to the right. Then, the moving frame 31 is rotated to the right side with respect to the holder 25.                     

Therefore, the first director roll 32 also rises to the right side, and moves to the left side with the strip S, which has been moved to the right side, to the normal position. Of course, if it is tilted to the left side, the second detection sensor 16b located on the left side detects this and adjusts the tilting of the strip S by the same operation as described above.

On the other hand, when the moving frame 31 is moved left and right by the cylinder 13, the moving frame 31 and the fixed base 12 are prevented from interfering with each other and being damaged. That is, the support roller 24 installed in the lower part of the moving frame 31 is clouded while being supported by the rail 38, and the guide bar 34 is also supported by the idle roller 23 installed in the support 20. Become clouds.

In addition, when the strip (S) is excessively sloping so that the breakage of the equipment or the strip (S) breaks down, the third detection sensors (17a) and (17b) detect and detect the detection signal with the control panel (18). Control panel 18 to stop the line.

In addition, in order to prevent the shot ball or the shot powder from adhering to the surface of the first deflector roll 32, the amount of air supplied to the air supply pipe 35 through the control valve 37 is adjusted to adjust the amount of the first ball through the air nozzle 36. Air is injected into the deflector roll 32.

As described above, according to the present invention, the scale and shot ball attached to the strip surface passing through the shot ball box and the contact surface of the strip and the deflector roll due to the shot powder in the descaler facility for crushing the scale layer of the strip surface When the stripping phenomenon occurs severely, it detects and flows the strip toward the center of the deflector roll by the action of the deflector roll and cylinder installed in the moving frame, thereby preventing the collision between the strip and the equipment.

In addition, there is a function that detects and warns when the strip is pulled or stops the line, thereby preventing the strip from entering the pickling line, which is a post-treatment operation.

Claims (4)

A support base comprising a fixed base connected to the bottom and passing through the strip from the shotbox, and a cylinder installed on an upper side of the fixed base; And A moving frame connected to the rod of the cylinder and rotatably connected to the left and right sides of the fixed base, and a rotatable first deflector roll rotatably fixed to the center of the moving frame so that the strip passes along a curved surface. Roll part To include, for the smooth rotation of the moving frame during the rotation of the moving frame by the cylinder, The rail is fixed to the lower end of the moving frame, A support roller corresponding to the rail is installed on the fixed base, The lower edge of the movable frame is formed to be inclined, and the guide bar is formed at the curvature corresponding to the rotation radius of the movable frame at the inclined edge thereof. And a support having a structure in which a plurality of idle rollers are installed on an upper surface and one side of the body, and a body having an inner channel corresponding to the guide bar toward the center of the fixed base. The method of claim 1, wherein in order to detect the deflection of the strip, A sensor installation member installed with a plurality of detection sensors detecting both edges of the strip and connected to the support; And And a control panel connected to the plurality of sensors and the cylinder, The center guide device of the strip to rotate the first director roll to the left and right by operating the cylinder with the detection signal input to the control panel in response to the detection of the plurality of detection sensors. delete The method of claim 1, wherein the shots and the shot powder are removed from the strip. A plurality of air supply pipe is disposed transversely in the upper portion of the moving frame, The center guide device of the strip is provided with a plurality of air nozzles and control valves in the plurality of air supply pipe.

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