JPH05212432A - Automatic water spray nozzle directing type brush roll machine - Google Patents

Abstract

PURPOSE:To keep a water spray nozzle so as to direct in the tangential direction to the grinding area of a strip in conformity with the vertically following displacement of brush rolls in a brush roll machine to grind the upper and lower surfaces of a metallic strip pass line with brush rolls arranged vertically and facing each other and displaced vertically following the vertical motion of the line. CONSTITUTION:When a water spray nozzle 2 can change direction vertically and brush rolls 1 on the upper and lower surfaces of a metallic strip pass line P are displaced vertically following the vertical motion of this line, by providing a detector to detect the displacement, a driving machine 4 to change the direction of a nozzle 2, the detector 11 to detect its mechanical momentum and a controller to which these detectors are connected, the nozzle is changed with its direction so that it directs in the tangential direction to the polishing area of a strip.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brush roll machine, and more specifically, a rotating brush roll is pressed against a metal strip path line running laterally in the length direction, and the brushing portion is tangentially contacted with water from a nozzle at a fixed position. The present invention relates to a brush roll machine that polishes this while spraying it.

In this type of polishing, it is important that a water film is formed by the water sprayed from the nozzle in the region where the rotating brush roll is in pressure contact with the metal strip pass line, that is, in the polishing region. Otherwise, good polishing will not be possible and the useful life of the brush roll will be shortened.

In order for a water film to be formed in the polishing region, it is essential that water is accurately jetted from the nozzle to the polishing region at a specific angle.

[0004] The traveling of the metal strip is accompanied by some vertical movement, although the path of the plate is restricted by the guide rolls.

In recent years, a brush roll machine of the type described above has been put into practical use as a modified model in which brush rolls are arranged on the upper and lower surfaces of a metal strip pass line in order to improve the polishing efficiency, and the upper and lower surfaces are simultaneously polished. became.

In this modified brush roll machine, when the brush rolls on the upper and lower surfaces of the plate are also vertically displaced in accordance with the vertical movement of the metal strip pass line, the degree of pressure contact of the upper and lower brush rolls with respect to the plate, in other words, This is convenient because the polishing results on the top and bottom surfaces of the plate are kept even.

[0007]

2. Description of the Related Art Heretofore, in the modified brush roll machine, it has not been possible to meaningfully embody the displacement of the brush roll up and down as the plate moves up and down.

Incidentally, in the prior art, since the direction of the nozzle for jetting water is fixed, if the brush roll is displaced up and down in accordance with the vertical movement of the plate, the jetting angle of water from the nozzle will change. It becomes improper, and the water film is not properly formed in the polishing region. The details are as follows.

When the A strip rises above the standard height and the upper brush roll is displaced upward following this; the water jetted from the nozzle is the upward displacement of the strip and the polishing area, and is directed to the strip away from the polishing area. Therefore, it hardly reaches the polishing area and is discharged in the traveling direction of the strip, which is the opposite direction (countercurrent direction) of the rotation of the upper brush roll.

B When the strip is lowered from the standard height and the upper brush roll is displaced downward following it; the downward displacement of the upper brush roll as the strip is lowered causes the water jet from the nozzle to directly hit the upper brush roll. Bounces back, does not reach the polishing area, and is discharged in the strip advancing direction.

C When the strip rises above the standard height and the lower brush roll is displaced upward following it; the upward displacement of the lower brush roll as the strip rises causes the water jet from the nozzle to directly flow to the lower brush roll. If the roll bounces and hits, and the rotation of the roll is in the direction opposite to the progress of the strip, it does not reach the polishing area and is discharged in the direction of travel of the strip, and the rotation of the roll is the normal direction for the progress of the strip. However, it hardly reaches the polishing area.

When the D strip is lowered from the standard height, and the lower brush roll is displaced downward following it; the water jetted from the nozzle is a downward displacement of the strip and the polishing area, and is directed to a strip away from the polishing area. If the rotation of the roll is in the direction opposite to the progress of the strip, it does not reach the polishing area and is discharged in the direction of travel of the strip. It does not reach the polishing area.

That is, no matter whether the brush roll is displaced in accordance with the fluctuation of the metal strip path line either above or below, the water sprayed from the nozzle does not reach the polishing area, and the required water film is not formed in the polishing area.

[0014]

SUMMARY OF THE INVENTION According to the present invention, a rotating brush roll is pressed against the upper and lower surfaces of a metal strip pass line running laterally in the longitudinal direction, and water is tangentially applied to the brushing portion from a nozzle at a fixed position. While spraying, while polishing the upper and lower surfaces of the strip, in response to the up and down movement accompanying the running of the metal strip pass line, in the brush roll machine that is configured to displace the upper and lower brush rolls up and down at the same time, The nozzle for injecting is provided with a driving machine for vertically changing the nozzle, and a detector for detecting the mechanical momentum of the driving machine is provided. A controller for controlling the operation is installed so that the driving machine operates until the deflection of the nozzle reaches a predetermined degree corresponding to the following displacement of the brush roll. Detector for detecting a vertical displacement of the detectors and the brush roll to the controller is characterized in that it is connected.

By adopting this structure, the intended problem solution can be achieved as will be described later.

[0016]

The present invention will be described with reference to the drawings showing the embodiments of the present invention.

In FIG. 1, reference numeral 1 is a brush roll in a brush roll machine 100, and the brush rolls 1 are arranged one above the other. The metal strip pass line P runs laterally in the length direction between the upper and lower brush rolls 1. The upper and lower brush rolls 1 are pressed against the traveling metal strip pass line P. In the example shown in the drawing, the rotation of the upper brush roll is set to face the traveling direction of the metal strip pass line P (the direction from right to left in FIGS. 1 and 2), and the rotation of the lower brush roll is performed. Is a metal strip pass line P
Is the direction of forward rotation with respect to, or the direction opposite to the progress of. The former combination in the rotation direction of the upper and lower brush rolls is shown in FIG. 1, and the latter combination is shown in FIG.

When the metal strip pass line P moves up and down, the upper and lower brush rolls 1 are automatically displaced up and down in accordance with the up and down movement by a method known per se. Reference numeral 2 denotes a nozzle disposed at a fixed position with respect to the upper brush roll 1 and at a fixed position with respect to the lower brush roll 1, and the nozzle 2 is provided on a pipe 3 extending in the length direction of the brush roll 1 and a metal strip pass line P. A plurality of them are mounted side by side so as to face the polishing area. Each nozzle 2 is of a type known per se in which the spray pattern is diffused in the length direction of the brush roll 1 but is hardly spread in the vertical direction.

The nozzle 2 is modified so that it can be turned up and down. The vertical deflection structure of the nozzle 2 is applied by a driving machine 4 arranged at a fixed position, for example, a power cylinder, an arm 6 having one end connected to the tip of a plunger 5 of the cylinder and the other end connected to a pipe 3. You can If the nozzles 2 for the upper and lower brush rolls 1 are arranged on different sides of the brush roll 1 before and after, the power cylinders are provided for each nozzle 2 (FIG. 1). In the arrangement where the nozzles 2 are on the same side, the number of power cylinders may be one, and the ends of the arms 6 and 6 of the upper and lower pipes 3 on the required side are connected to the tip of the plunger 5 of the cylinder via the connecting rod 7 ( (Fig. 2). The power cylinder is pivoted in place. The arm 6 is keyed to a sleeve 8 which is fitted on the end of the tube 3 and is keyed to the tube 3 by means of a sliding key 10.

The arm 6 is rotated clockwise or counterclockwise in FIGS. 1 and 2 by the driving machine 4, and the nozzle 2 is rotated by the arm 6.
Is changed to the up and down direction.

The mechanical momentum of the drive unit 4 (in the case where the drive unit is a power cylinder, the amount of mechanical displacement that is the forward or backward movement of the plunger), and in the other drive units, it corresponds to the forward or reverse direction. A detector 11 for detecting the amount of mechanical displacement) is installed. As the detector 11, a potentiometer can be advantageously applied. The pontentiometer drives the rod 111 coupled to its sliding resistance to drive the motor 4
The potentiometer casing 112 may be coupled to the main body 41 of the driving machine 4 in the plunger 5 which is the output member of the drive unit 4.

The vertical deflection of the nozzle 2 is the brush roll 1
A controller 12 for controlling the operation of the driving machine 4 is provided so that the driving machine 4 operates until a predetermined degree corresponding to the following displacement described below is reached. Are connected. Further, the controller 12 is connected to a detector 13 for detecting a vertical follow-up displacement of the brush roll 1 which will be described later. As the controller 12, a computer can be advantageously applied. The detector 13 can be advantageously filled with a mechanism for moving the brush roll 1 up and down, for example, a rotary or linear encoder provided in a screw jack (not shown).

The computer has an interface for processing input / output signals for executing the operation amount regulation of the driving machine 4 which will be described later and an input / output signal for executing operation control of the driving machine 4 which will be described later, and It includes a memory that stores necessary data for execution of the operation amount regulation, data necessary for execution of the operation control, and a processor that performs arithmetic processing for execution of the operation amount regulation and operation control. ..

The computer, driver 4, detector 11
The relationship between Nos. 13 and 13 is shown as a block diagram in FIG.

When the metal strip pass line P runs at the standard height, the upper and lower brush rolls 1 do not move vertically. Therefore, there is no output from the detector 13, the driver 4 does not operate, and the nozzle 2 maintains the tangential direction of the plate with respect to the polishing area.

When the metal strip pass line P moves up and down, the upper and lower brush rolls 1 follow and move up and down in the same manner as in the conventional case. When the upper and lower brush rolls 1 are displaced vertically, the detector 13 detects this.

Then, the detected value is input to the controller 12, the driving machine 4 is driven, and the nozzle 2 is moved to the brush roll 1
Follow the direction of and change the direction to the side to be displaced.

The detector 11 detects the above-mentioned amount of change of the nozzle 2, that is, the mechanical momentum of the driving machine 4 for deflecting the nozzle 2, and under the control of the controller 12, the mechanical momentum, that is, the driving machine 4 is controlled. The operation amount reaches a predetermined value, that is, the nozzle 2
The driving machine 4 is operated until the deflection of the brush roll 1 reaches a predetermined degree corresponding to the following displacement of the brush roll 1. When the operation amount reaches a predetermined value, the drive machine 4 is stopped under the control of the controller 12 based on this, and the nozzle 2 is kept under the changed state corresponding to the operation amount reaching the predetermined value. Get burned. The degree of change is designed in advance so as to correspond to that the water jetted from the nozzle 2 is directed tangentially to the polishing area of the plate.

In this way, the nozzle 2 is deflected following the vertical movement of the upper and lower brush rolls 1 with respect to the vertical movement of the plate so as to maintain the state of being tangentially directed to the polishing region of the plate.

In order to always orient the nozzle tangentially to the polishing area of the plate, even if the nozzle is integrated with the brush roll 1 so as to be displaced up and down following the vertical movement of the plate, the orientation is the same. If the 1 wears and the diameter decreases, it is no longer suitable. Also, by doing so, a brush roll of the required length can be used in response to the passage of strips having different strip widths (the strips are often polished by welding the strips having different strip widths). When replacing with, the old roll cannot be pulled out unless the integrated connection of the nozzle to the brush roll is released, and it is necessary to re-integrate after the insertion of the new roll, and rapid roll exchange cannot be performed, Not preferable.

In contrast to this, when the nozzle 2 is designed to follow the vertical movement of the brush roll 1 at a fixed position as described above, the above-mentioned inconvenience does not occur.

[0032]

As is apparent from the above description, the present invention shows the effect of displacing the brush roll up and down with the vertical movement of the plate in the modified brush roll machine described above. There is an effect that can be achieved by maintaining the state in which the water jet nozzle is tangentially directed to the polishing region of the plate in response to the vertical follow-up displacement.

[Brief description of drawings]

FIG. 1 is a side view showing an example of a brush roll machine according to the present invention.

FIG. 2 shows a side view of another example of the brush roll machine according to the present invention.

FIG. 3 is a sectional view taken along line III-III in FIG.

4 is a sectional view taken along line IV-IV in FIG.

5 is an enlarged view of a lower end portion of the tube 3 with the nozzle 2 shown in FIG.

FIG. 6 is an enlarged view of a driver for nozzle deflection shown in FIGS. 1 and 2 and a detector for detecting mechanical momentum of the driver.

FIG. 7 is a block diagram showing the relationship among the drive machine, a computer as a control machine for controlling the operation of the drive machine, a detector for detecting the mechanical momentum of the drive machine, and a detector for detecting the vertical displacement of the brush roll. Is.

[Explanation of symbols]

 1 Brush Roll 2 Nozzle 3 Tube with Nozzle 4 Drive Machine 11 Detector for Detecting Mechanical Momentum of Drive Machine 12 Controller 13 Detector for Detecting Vertical Displacement of Brush Roll 100 Brush Roll Machine P Metal Strip Pass Line

Claims (1)

[Claims] 1. A rotary brush roll is pressed against the upper and lower surfaces of a metal strip path line running laterally in the lengthwise direction, and water is jetted tangentially from a nozzle at a fixed position onto the brushing portion of the strip line. In a brush roll machine that polishes the lower surface and simultaneously moves up and down the upper and lower brush rolls in response to the vertical movement associated with the running of the metal strip pass line, the nozzles that inject water upward and downward. The nozzle is provided with a driving machine for vertically changing the nozzle, and a detector for detecting the mechanical momentum of the driving machine is provided. A controller for controlling the operation is installed so that the driving machine operates until a predetermined degree corresponding to the following displacement of the roll is reached, and the controller includes a controller for controlling the operation. Water injection nozzle automatically oriented brush roll machine, characterized in that the detector for detecting the vertical displacement of silole is connected.