KR20010111439A - Preventing pollution device in strip edge - Google Patents

Abstract

The present invention relates to a strip edge solution contamination prevention device.

The present invention includes a drive motor fixed to the support object on both sides in the width direction of the strip; A screw shaft connected to the drive motor and disposed on the support; A rectangular box-shaped housing meshed with the screw shaft and installed to be approached at the same distance from each other according to the rotation of the screw shaft; An operation cylinder fixed to a rear surface of the housing so as to be moved forward and backward into the housing and having a connection member attached to a front end thereof; An 'c' shaped elastic fixing piece fixed to the connecting member; Upper and lower blocks are fixed to the bent both ends of the elastic fixing piece and provided with an idle roll on the bottom surface and installed to face each other; Guide bars protruding from the upper and lower blocks, and the guide bars are connected to each other by a spring and are rotatably fixed to the roll shaft formed at the front end thereof and installed to be in contact with each other; Vertical rolls having both ends fluidly fixed to the guide bar at adjacent rear sides of the upper and lower rolls; It comprises a rhombus-shaped guide block fixed in the housing and provided to open and pass the upper and lower blocks, chromium plating by preventing the chromium solution from entering the strip edge during chrome and rinsing (washing) operation The quality of the steel sheet will be improved.

Description

Strip edge solution contamination prevention device {PREVENTING POLLUTION DEVICE IN STRIP EDGE}

The present invention relates to a strip edge solution contamination prevention device, and more particularly, to improve the quality of the chrome-treated plated steel sheet by preventing chromium solution from entering the strip edge during chrome and rinsing (washing) operation of strip thickness of 0.8 mm or more. A strip edge solution contamination prevention device is provided.

In general, as shown in Figure 1, in the plating line, the strip (1) is coated between the front and rear surfaces by the zinc between the upper ringer roll 3 and the lower ringer roll (6) installed inside the working tank (2) When passing through the chromium solution by spraying the chromium solution through the supply pipe (5).

This chrome treatment does not significantly affect the quality due to the small amount of chromium solution coming out of the edge of the strip (1) (EDGE) when the thickness of the plated steel sheet is 0.8 mm or less, but the thickness increases when the thickness of the strip is 0.8 mm or more. The amount of chromium solution flowing to the strip (1) edge between the upper and lower ringer rolls (3, 6) increases, so that a substantial portion of the solution contamination (4) occurs in the strip at the strip edge (7) as shown in FIG. There was a problem that adversely affects the quality of the product.

The present invention has been made in view of the above-described problems of the prior art, which was created to solve this problem, after galvanizing the front and rear surfaces of the strip, the chrome treatment by preventing solution contamination on the strip edge during the chrome treatment operation in the post-treatment. An object of the present invention is to provide a strip edge solution pollution prevention device which can greatly improve the quality of plated steel sheet.

1 is a perspective view of a conventional chrome processing apparatus,

FIG. 2 is a detailed view of part A shown in FIG. 1;

Figure 3 is a perspective view of the installation and operation of the solution pollution prevention apparatus according to the present invention,

Figure 4 is a partial cross-sectional view showing the installation state of the solution pollution prevention apparatus according to the present invention,

5 is an exploded perspective view of a solution pollution prevention apparatus according to the present invention.

Explanation of symbols on the main parts of the drawings

1: strip, 8: drive motor,

9: screw shaft, 15: working cylinder,

18: guide block, 21, 22: upper and lower roll,

28: vertical roll, 30-1, 30-2: upper and lower blocks,

36: information bar, 40: housing.

The above object of the present invention is a drive motor fixed to the support object on both sides in the width direction of the strip; A screw shaft connected to the drive motor and disposed on the support; A rectangular box-shaped housing meshed with the screw shaft and installed to be approached at the same distance from each other according to the rotation of the screw shaft; An operation cylinder fixed to a rear surface of the housing so as to be moved forward and backward into the housing and having a connection member attached to a front end thereof; An 'c' shaped elastic fixing piece fixed to the connecting member; Upper and lower blocks are fixed to the bent both ends of the elastic fixing piece and provided with an idle roll on the bottom surface and installed to face each other; Guide bars protruding from the upper and lower blocks, and the guide bars are connected to each other by a spring and are rotatably fixed to the roll shaft formed at the front end thereof and installed to be in contact with each other; Vertical rolls having both ends fluidly fixed to the guide bar at adjacent rear sides of the upper and lower rolls; It is achieved by including a rhombus-shaped guide block fixed in the housing and provided to pass through the upper and lower blocks.

Hereinafter, a preferred embodiment according to the present invention will be described in more detail on the basis of the accompanying drawings.

Figure 3 is a perspective view of the installation state of the solution pollution prevention apparatus according to the present invention.

According to Fig. 3, the solution contamination prevention apparatus of the present invention is installed with the same structure so as to face each other at the edge portions, which are both ends of the strip 1, which proceed.

A pair of bearing blocks 12 and 13 is fixed on both supports 90 through which the strip 1 runs.

A screw shaft 9 is installed across the bearing blocks 12 and 13, and guide bars 10 and 11 are installed at both sides of the screw shaft 9.

The screw shaft 9 is connected to the drive motor 8 fixed to the upper surface of one side support (90).

On the other hand, the reference ring 20 is fixed to the center of the length of the screw shaft 9 and the housing 40 is provided spaced apart from the reference ring 20 by the same distance.

The lower end of the housing 40 is inserted or engaged with the screw shaft 9 and the guide bars 10 and 11 so as to be moved at the same distance from each other.

To this end, the support plate 14 is protruded downward on the bottom surface of the housing 40, the support plate 14 is inserted into the screw shaft 9 and the guide bar (10, 11).

A guide block 18 having a substantially rhombus shape in the width direction of the strip 1 is fixed to the inner center of the housing 40 by screws 19.

A pair of upper and lower rollers 21 and 22 are provided on a front surface of the housing 40 facing each other with the strip 1 interposed therebetween, which can be moved back and forth by the operation cylinder 15.

The upper and lower rollers 21 and 22 are installed to be in elastic contact with each other.

Figure 4 is a cross-sectional view showing the internal structure of the operating state of the solution pollution prevention apparatus according to the present invention, Figure 5 is an exploded perspective view of the solution pollution prevention apparatus according to the present invention.

4 to 5, a pair of guide rails 45 are formed on both inner side surfaces of the housing 40 at regular intervals up and down along the longitudinal direction of the housing 40.

An operation cylinder 15 is installed on the rear surface of the housing 40, and a cylinder rod of the operation cylinder 15 is positioned inside the housing 40, and a disc-shaped connecting member 41 is fixed at an end thereof.

The connection member 41 is bolted to the back of the 'c' shaped elastic fixing piece 37.

Both ends of the elastic fixing piece 37 are vertically bent in a direction opposite to each other to form upper and lower flanges 38-1 and 38-2.

Upper and lower blocks 30-1 and 30-2 are fixed to the front surfaces of the upper and lower flanges 38-1 and 38-2, respectively.

The upper and lower blocks 30-1 and 30-2 have a substantially rectangular shape, and a pair of guide bars 43 are provided on both sides thereof to correspond to the guide rails 45 and slide along the corresponding surfaces. The idle roll 31 is rotatably installed.

The guide bars 36 are fixed to the front surfaces of the upper and lower blocks 30-1 and 30-2, respectively, and roll shafts 27 are formed at the front end of the guide bars 36.

The guide bar 36 is preferably formed in a rectangular shape, the upper and lower rolls 21 and 22 are rotatably fixed to the roll shaft 27.

The upper and lower rolls 21 and 22 are fixed to each outer peripheral contact with each other.

The guide bar 36 is bufferably connected to each other by a vertical connection spring 29, and the guide bar 36 on the rear side adjacent to the upper and lower rolls 21 and 22 is a square hole 35 on the surface facing each other. ) Is formed.

The vertical roll 28 is disposed in the square hole 35 to be orthogonal to the upper and lower rolls 21 and 22, and the vertical roll 28 is rotatably fixed to the vertical roll shaft 33. Both ends of the vertical roll shaft 33 are fixed in a proper manner so that the square hole 35 is not separated with the spring 34 interposed therebetween.

In particular, the vertical roll shaft 33 is preferably longer than the upper and lower widths of the guide bar 36 so as not to be separated from the saga hole 35 even when the guide bar 36 is opened.

In addition, the spring 23 is placed in a direction orthogonal to the water quality roll shaft 33, so that the spring 23 is interposed in the square hole 35.

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

As the strip (1) sprayed with chromium solution on the upper and lower surfaces passes through the upper and lower ringer rolls (3,6), the surface chromium solution is removed, but there is a side space as much as the thickness of the steel plate. The portion is transported along with the strip 1 through the ringer rolls 3 and 6.

At this time, a sensor ('16' in FIG. 3) installed adjacent to the steel sheet traveling direction side of the upper and lower ringer rolls 3 and 6 detects the entry of the strip 1 and the driving motor 8 is detected by the detection signal. ) Is driven.

The driving of the drive motor 8 causes the two housings 40 to move along the screw shaft 9 in a direction close to each other, that is, to both edge portions of the strip 1.

The driving motor 8 is stopped when the upper and lower rolls 21 and 22 approach the edges of the strip 1 during the movement.

Then, the operation cylinder 15 is operated to move the cylinder rod to both edge sides of the strip 1.

Accordingly, the elastic fixing piece 37 is moved and the upper and lower blocks 30-1 and 30-2 are moved through the guide block 18, and the upper and lower rolls 21 and 22 are strips. It enters the edge part of (1).

That is, when the idle roll 31 of the upper and lower blocks 30-1 and 30-2 passes through the rhombic guide block 18, the elastic fixing piece 37 is opened and at the same time, the upper and lower rolls are opened. There is a gap between the 21 and 22 so that the edge portion of the strip 1 is introduced therebetween (in fact, the upper and lower rolls are moved to enter the edge portion).

When the upper and lower blocks 30-1 and 30-2 pass through the guide block 18, the blocks 30-1 and 30-2 are returned to their original positions by the elastic return force of the elastic fixing piece 37. At the same time, the upper and lower rolls 21 and 22 are in close proximity to engage both edge portions of the strip 1.

The operating cylinder 15, which has been advanced, is deactivated when the vertical roll 28 contacts the edge of the strip 1.

Since the vertical roll 28 is elastically operated in the up and down direction, it is possible to press down both edges of the strip 1 at an appropriate pressure, and the chromium solution flowing along with the progress of the steel sheet 1 is easily and neatly removed.

In addition, it is possible to actively respond to the various widths of the strip (1) according to the forward and backward distance of the operation cylinder 15, it is possible to process the strip (1) having various widths in one line without changing the equipment.

In addition, since the upper and lower rolls 21 and 22 are compressed to be always close by the spring 29, contamination of the solution may be prevented regardless of the thickness of the steel sheet during the chrome treatment operation.

As described in detail above, the solution contamination prevention apparatus according to the present invention is the edge of the plated steel plate is cleanly cleaned by the movable upper, lower rolls and water rolls placed adjacently after passing through the upper and lower ringer rolls, as well as strips. It is possible to produce high-quality chrome plated steel sheet because the edge part can be cleaned regardless of its thickness.

Claims (2)

A drive motor 8 fixed on the support 90 on both sides in the width direction of the strip 1; A screw shaft 9 connected to the drive motor 8 and disposed on the support 90; A housing (40) having a rectangular box shape that is engaged with the screw shaft (9) and is installed to be approached at the same distance from each other according to the rotation of the screw shaft (9); An operation cylinder 15 fixed to a rear surface of the housing 40 so as to be able to move forward and backward, and having a connection member 41 attached to a front end thereof; An 'c' shaped elastic fixing piece (37) fixed to the connection member (41); Upper and lower blocks 30-1 and 30-2 fixed to the bent ends of the elastic fixing piece 37 and having an idle roll 31 on the bottom surface thereof and installed to face each other; Guide bars 36 protrude from the upper and lower blocks 30-1 and 30-2, and the guide bars 36 are connected to each other by springs 29 and rotate on the roll shafts 27 formed at the ends thereof. Upper and lower rolls 21 and 22, which are fixed and possibly installed in contact with each other; Vertical rolls 28 having both ends fluidly fixed to the guide bar 36 at adjacent rear sides of the upper and lower rolls 21 and 22; Strip edge solution contamination is characterized in that it comprises a rhombus guide block 18 is fixed in the housing 40 and provided so that the upper and lower blocks 30-1 and 30-2 are opened and passed. Prevention device. The method of claim 1, wherein the vertical roll 28 is rotatably fixed to the vertical roll shaft 33, both ends are formed in a rectangular shape, The vertical roll shaft 33 is fixed so as not to be separated from the square hole 35 of the guide bar 36 with the spring 34 interposed at both ends, Strip edge solution contamination, characterized in that the vertical roll 28 is installed so as to be buffered in the vertical direction before and after the spring 23 is interposed in the square hole (35) perpendicular to both ends of the vertical roll shaft (33). Prevention device.