JPS611411A - Descaling device of steel plate - Google Patents

Abstract

PURPOSE:To obtain a steel plate whose surface nature is excellent, by providing opposingly a brush roll inserting plural wires on the outside peripheral surface, and a magnet roll, and pressing the wire against the steel plate surface by the magnet roll. CONSTITUTION:Plural holes 7 are provided in the radial direction on the surface of a brushing roll 3, and plural wires 8 are inserted so as to be movable in the radial direction. A brushing roll cover 4 is formed cylindrically on the same shaft center as the shaft of the roll 3, and a part opposed to a magnet roll 6 is notched. When a steel plate 1 passes through between the roll 3 and the magnet roll 6 by a given tension, the roll 3 is rotated in the direction opposite to the steel plate 1, and a wire 8 of the roll 3 is attracted by an incorporated electromagnetic force 25 of the roll 6. Accordingly, the wire 8 is pressed against the surface of the steel plate 1 and descaled. According to this method, the steel plate is descaled efficiently, therefore, the steel plate 1 having a good surface nature is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a descaling device that efficiently removes surface scale from a hot-rolled steel plate or a cold-rolled steel plate while continuously moving the steel plate.

(Prior art) A method for removing scale by rotating a disc-shaped or cylindrical grindstone and pressing its curved surface against the steel plate surface as a mechanical descaling device for steel plate surfaces. or a method of removing scale by pressing a wire brush roll made of a rotating body against the steel plate surface while rotating (for example, Japanese Patent Application Laid-Open No. 57-7-5217
] etc. are known.

(Problems to be Solved by the Invention) In all of these conventional techniques, as the steel plate surface continues to be ground, the peripheral surface of the grinding roll wears unevenly, so the steel plate surface cannot be ground uniformly. I have one problem.

The object of the present invention is to solve the above-mentioned problems, to efficiently descale the surface of a steel plate while continuously moving the steel plate, and to obtain a steel plate with excellent surface properties.

(Means for solving problems) In the present invention, a plurality of holes are formed on the outer peripheral surface of the roll.

It consists of a flushing roll that allows multiple wires to be moved through the hole, a brushing roll cover that is placed with a small gap from the brushing roll, and a magnet roll that has a built-in magnet, and moves at a constant speed. A brushing roll and a magnet roll are placed between the steel plates,
The wire is pressed against the surface of the steel plate by the magnetic force of the magnet roll, and the rotation of the brushing roll [thus provides a device for descaling the steel plate with the wire.

(Function) In FIG. 1, a steel plate (copper strip) 1 that is stretched and moves at a constant speed is guided by a guide roll 2 and passes between a brushing roll 3 and a magnet roll 6. During this passage, The upper surface of the steel plate 1 is descaled by the brushing roll 3. That is, the wire provided on the roll 3 is attracted by the magnet roll 6 and is pressed against the surface of the steel plate to descale it.

Next, the steel plate 1 is transferred to the brushing roll 3' and the magnet roll 6'.
pass between. At this time, the lower surface of the steel plate 1 is descaled by the brushing roll 3'.

The steel plate 1 whose upper and lower surfaces have been ground is guided by a guide roll 2' (guided by a guide roll 2') to proceed to the next process.

(Example) Fig. 1 shows an example of the device of the present invention, and Fig. 2 shows an A-LA
3 is a sectional view taken along the line B-B, FIG. 4 is a view viewed from the C-C arrow, Figure 5 is a detailed view of the steel plate surface grinding section, and Figure 6 is a brushing roll surface view viewed from the D-D arrow. It is.

As shown in FIG. 1, a steel plate 1 is attached to two sets of guide rolls 2.
A brushing roll 3 and a magnet roll 6 are provided between these guide rolls so as to face each other with the steel plate 1 in between. In the example shown in Figure 5, another set of brushing roll 3' and magnet roll 6' are arranged with their positions reversed. A brushing roll cover 4, 4' is provided around the outer periphery of each brushing roll 3, 3' with a small gap therebetween. Incidentally, 5.degree. 5' is a motor that drives the brushing rolls 3 and 3'i, respectively.

Next cc, 7 latching rolls 3. Brushing roll cover 4. The magnet roll 6 will be explained in detail.

As shown in FIGS. 5 and 6, a plurality of holes 7 are provided in the radial direction of the roll body on the surface of the brushing roll 3. It is tightly inserted in a state where it can move in the radial direction of the roll body. The brushing roll 3 is supported at both ends by rolling bearings 9, and the rolling bearings 9 are connected to a bearing box 10. ]0'l is supported, and the bearing box 10°10' is supported by the brushing roll 3.
It is suspended from the roll stand cap I by a vertical adjustment screw 11 in order to move and adjust the roll stand cap I up and down. 12 is a nand for a vertical adjustment screw, 13 is a cap for attaching the vertical adjustment screw 11 to the bearing box 10, and 14 is a bolt for fixing the cap 13 to the bearing box 10.

A key 15 is provided at one shaft end of the brushing roll 3, and the brushing roll 3 is connected to a drive motor 5 through a universal joint (not shown) and a reducer, transmission, etc. (not shown). ing. 1.6
．． 17 is a retaining ring that fixes the rolling bearing 9.

The brushing roll cover 4 is attached coaxially with the shaft of the flushing roll 3 with a small gap in between, and is formed into a cylindrical shape. As shown in FIG. 3, a portion facing the magnet roll 6 is cut out, and the wire 8 comes into contact with the surface of the steel plate 1 through one of the cutouts, thereby descaling the surface of the steel plate.

The inner surface of the brushing roll cover 4 other than the cutout portion serves as a guide to prevent the wire 8 from flying out due to centrifugal force when the brushing roll 3 rotates.

A rolling bearing 18 is provided to align the axis of the flushing roll 3 and the axis of the brushing roll cover 4 and to prevent the brushing roll cover 4 from rotating even when the brushing roll 3 rotates. 19.20 is a retaining ring for rolling bearing ]8. 2
], 2]' is connected to the brushing roll force bar 41 by the bolt 22 in the bearing box. B is a rotation stopper for the brushing roll cover 4, and the bearing box 21' is fixed to the bearing box 10' through the pole 24i.

Furthermore, the magnet roll 6 has an electromagnet built inside, and 2
5 is a magnet core, and 26 is an electromagnetic coil. 27 is the shaft of the magnet roll 6, and the magnet core 5 is fitted and fixed to the magnet roll shaft 27. The magnet roll 6 is connected to a magnet roll shaft 27 via a rolling bearing path and a bearing box 29, so that it can rotate around the magnet roll shaft 27. 30.31 is a retaining ring for rolling bearing way, 32
is a bolt that fixes the bearing box 29, 29'9 and the magnet roll 61. 33 is a bearing box for the magnet roll shaft 27, 34 is a plate for preventing rotation of the magnet roll shaft 27, and 35 is a set bolt for fixing the rotation prevention plate 34 to the bearing box 33'.

The bearing box 33.33' is set on the roll stand ■ by the vertical adjustment screw 36 and nut 37, and the adjustment screw 36. The magnet roll can be adjusted to a predetermined height by moving it up and down from 371.

Reference numeral 38 designates a single cap to which the vertical adjustment screw 36 is attached using the bearing box 33, 33' and the bolt 39. 40 is the bolt that attaches the roll stand cap I to the roll stand H, and 41 is the base m+ of the roll stand ■.
This is the bolt to attach it.

Next, the procedure for descaling the steel plate 1 will be described. When the steel plate 1 is given a certain tension and passes between the brushing roll 3 and the magnet roll 6, the brushing roll 3 is rotating in the opposite direction to the advancing direction of the steel plate 1. The wire 8 is attracted by an electromagnet (electromagnetic iron core) 25 built into the magnet roll 6 in the vicinity where the electromagnet roll 6 and the steel plate 1 are in contact with each other, and is pressed against the surface of the steel plate 1 to descale the steel plate surface. Note that the magnet roll 6 rotates in synchronization with the steel plate 1 in the traveling direction of the steel plate 1.

In this embodiment, one descaling device was used for each of the front and back descaling t of the steel plate surface, but several stages of descaling devices may be used in series as necessary.

(Effects of the Invention) With the above-described apparatus, it has become possible to efficiently descale the surface of a steel plate while continuously moving the steel plate, and to obtain a steel plate with excellent surface properties.

[Brief explanation of drawings]

FIG. 1 is an overall configuration diagram of an embodiment of the present invention, and FIG. 2 is a vertical cross-sectional view of a brushing roll, a brushing roll cover, and a magnet roll of the present invention.
The figure is a sectional view taken along line BB in FIG. 4 is a view taken along the line C--C in FIG. 2, FIG. 5 is a detailed view of the steel plate surface descaling section, and FIG. 6 is a surface view of the brushing roll taken along the line DD--D in FIG. 1... Steel plate, 2.2'... Guide roll, 3,3'
...Brushing roll, 4.4'...Brushing roll cover, 5.5'...Motor, 6.6'...
・Magnet cool. 7... Hole, 8... Wire, 9... Rolling bearing,
IQ, 10'...bearing box, 11...vertical adjustment screw, I...roll stand cap, 12...nut, 13...cap, 14...bolt, 15...
・Key, 16.17... Retaining ring, 18... Rolling bearing, 19.20... Retaining ring, 21.21'...
・Bearing box, 22... Bolt, 23... Rotation stopper, 2
4... Bolt, 5... Electromagnet (electromagnetic iron core), 26...
...Electromagnetic coil, 27...Magnet roll shaft. 4... Rolling bearing, 29.29'... Bearing box,
30.31...Retaining ring, 32...Pol), 33.3
3'... Bearing box, 34... Rotation stopper plate, 35
... Bolt, 36... Vertical adjustment screw, 37... Nut, ri... Roll stand, 38... Cap. 39, 40.41...Pol), III...Base.

Claims (1)

[Claims] A brushing roll formed by drilling a plurality of holes in the radial direction on the outer peripheral surface of the roll body, and inserting a plurality of wires into each of the holes so as to be movable in the radial direction of the roll body; A magnet roll containing a built-in magnet is placed opposite to each other, and a brushing roll cover having a notch in the part facing the magnet roll is provided around the brushing roll with a small gap from the outer periphery of the brushing roll. This is a steel plate descaling device that is configured to remove scale by passing the steel plate through the gap and pressing the brushing roll wire against the steel plate surface using a magnetic roll.