JP3263742B2 - Water injection nozzle automatic orientation adjustment type brush roll machine - Google Patents

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, more specifically, a rotary brush roll is pressed against a metal strip pass line running laterally in a length direction, and water is tangentially applied to a brushing portion from a nozzle at a fixed position. The present invention relates to a brush roll machine for polishing the strip while spraying.

[0002] In this type of polishing, it is important that a water film is formed by water jetted from a nozzle in a region where the rotating brush roll is pressed against a metal strip pass line, that is, in a polishing region. Otherwise, good polishing is not possible and the service life of the brush roll is short.

In order for a water film to be formed in the polishing area, it is essential that water is accurately sprayed from the nozzle at a predetermined angle to the polishing area.

[0004] The traveling of the metal strip pass line involves a certain amount of up and down movement, although the path of the plate is regulated by guide rolls.

In recent years, a brush-type machine of the above-mentioned type has been modified so that 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 displaced up and down in accordance with the vertical movement of the metal strip pass line, the degree of pressing of the upper and lower brush rolls against the plate, in other words, For example, it is advantageous that the polishing results of the upper and lower surfaces are kept uniform.

[0007]

2. Description of the Related Art Conventionally, in the above-mentioned modified brush roll machine, it has not yet been possible to effectively embody the vertical displacement of the brush roll following the vertical movement of the plate.

In the past, since the direction of the nozzle that sprays water is fixed, it is fixed. Therefore, when the brush roll is displaced up and down in accordance with the vertical movement of the plate, the angle of water spray from the nozzle is reduced. Obviously, it becomes inappropriate and a water film is not formed in the polishing region.

Conventionally, when the diameter of a brush roll is reduced due to wear, even if the strip pass line occupies a standard height, the direction of the nozzle, that is, the jetting angle of water from the nozzle loses accuracy. was there. To make this appropriate, it is necessary to stop the brush roll machine and readjust the direction of the nozzle, thereby reducing the operating rate of the brush roll machine.

[0010]

The problem to be solved is that in the above-mentioned modified brush roll machine, the embodying of vertically displacing the upper and lower brush rolls with the up and down movement of the plate is to follow the up and down movement of the brush rolls. In accordance with the displacement, the water injection nozzle is automatically adjusted so as to maintain the state in which the water injection nozzle is directed tangentially to the polishing area of the plate, and the structure or equipment is improved without using an electronic control device. So that it can be done in a concise manner.

[0011]

SUMMARY OF THE INVENTION According to the present invention, a rotating brush roll is pressed against upper and lower surfaces of a metal strip pass line running laterally in a longitudinal direction, and water is sprayed tangentially from a nozzle to a brushing portion thereof. In a brush roll machine for polishing the upper and lower surfaces of the strip, and corresponding to the vertical movement accompanying the traveling of the metal strip pass line, the upper and lower brush rolls are vertically displaced together with their roll chicks, A first arm extending in the front-rear direction of the strip is interposed between an upper roll chick and a lower roll chick, and the arm is applied with a torque in a certain direction by a rubber-like elastic body, and both ends of the arm are positioned with respect to the pass line. A second arm which is pressed against the upper and lower opposing surfaces of the upper and lower roll chicks under pressure contact of both brush rolls, and is vertically arranged in parallel. And a third arm are disposed on the side of the brush roll machine, one end of one of the second and third arms is connected to a point corresponding to the midpoint of the length of the first arm, and the other end is provided. The second and third arms are swingably connected by a vertical link at the side and the corresponding end side.
The arm is connected to a rod that extends parallel to the brush roll, is disposed at a fixed position, and is rotatable in a direction around an axis,
The arm is provided with a water jet nozzle for the upper brush roll on one rod and the water jet nozzle for the lower brush roll on the other rod.

By adopting this configuration, the intended solution of the problem is achieved as described later.

For the reasons described later,
The arm and vertical link assembly is preferably provided with a centering device for automatically centering the midpoint of the first arm at a position corresponding to the standard height of the metal strip pass line. .

In the present specification, the term "rubber-like elastic body" in the present invention is used in a broad sense meaning not only a rubber-like elastic body but also a spring. This is the same for the description throughout the specification.

[0015]

Next, the present invention will be described with reference to the drawings showing an embodiment of the present invention.

FIGS. 1 to 5 show one embodiment of the present invention, FIG. 6 shows the functions of the nozzle according to the present invention and the nozzle according to the prior art, and FIG. 7 shows another embodiment of the present invention. It is shown.

1 to 5, reference numeral 1 denotes a brush roll machine 100.
, And the brush roll 1 is disposed vertically. The metal strip pass line P runs laterally between the upper and lower brush rolls 1 in the length direction. The upper and lower brush rolls 1 are pressed against the traveling metal strip pass line P. The upper and lower brush rolls 1
When the strip pass line P moves up and down, it is automatically displaced up and down together with the roll chick 11 of the brush roll 1 in accordance with the up and down movement by means known per se.

Numeral 2 denotes a water jet nozzle. The nozzle 2 is arranged at a fixed position for each of the upper and lower brush rolls 1, and the upper nozzle thereof has an upper rod 3 extending in parallel with the upper brush roll 1. In addition, a plurality of lower nozzles 2 are mounted side by side on a lower rod 3 extending in parallel with the lower brush roll 1. The upper nozzle 2 is directed tangentially to the upper polishing area of the strip in the pass line P, and the lower nozzle 2 is directed tangentially to the lower polishing area of the strip. Each nozzle 2 is of a type known per se, in which the spray pattern spreads in the length direction of the brush roll 1 but hardly spreads in the vertical direction. The rod 3 is supported by a bearing 4 arranged at a fixed position, and is rotatable in a direction around an axis. The rod 3 is preferably filled with a pipe for sending water to the nozzle 2.

Reference numerals 5, 6, and 7 denote first, second, and third arms, respectively. The first arm 5 extends in the front-rear direction of the pass line P, and is interposed between upper and lower roll chicks 11, 11. The second and third arms 6 and 7 are arranged on the side of the brush roll machine 100 in parallel in the up and down direction. One of the second and third arms 6 and 7, for example, the second arm 6, has one end connected to a position corresponding to the midpoint of the length of the first arm 5.

The first arm 5 is torqued in a certain direction by the rubber-like elastic body 8, for example, clockwise in FIGS. 1 and 5, so that it is equidistant from substantially both ends of the arm, that is, the middle point. Rollers 52 attached to both ends of the
The upper and lower rotating brush rolls 1 are pressed against opposing surfaces of the upper and lower roll chicks 1 and 1 in a state where the upper and lower rotating brush rolls 1 are pressed against the plate of the metal strip pass line P. In the illustrated embodiment, a rubber block is applied to the rubber-like elastic body 6. Specifically, the inner peripheral surface formed at the midpoint portion of the first arm 5 is formed at the cylindrical body 51 having a rectangular cross section and at the end of the second arm 6 corresponding to the midpoint portion. Inside each cylindrical body 61 having a rectangular cross section, rubber block pieces having a triangular cross section are filled in a circular arrangement around the axis of the cylindrical bodies 51 and 61, and a rectangular shape defined by the rubber block pieces is filled. The hole is filled with the same square core 81.

The rubber block piece applies a torque in a certain direction to the first arm 5 by the reaction of a torsional force applied to the rubber block piece in a direction around the axis of the cylinders 51 and 61. The torsional force is generated when the upper and lower brush rolls 1 and 1 are pressed against the strip path line P, and the rollers 52 and 52 at both ends of the first arm 5 are opposed to the upper and lower roll chucks 11 and 11. Is pushed and the arm 5 is angularly displaced about its midpoint.

As the rubber-like elastic body 8 for applying a torque to the first arm 5, a rubber spring piece (not shown) may be used instead of the rubber block piece. The coil spring has one end connected to the first arm 5 side and the other end connected to the arm connected to the first arm 5, that is, the second arm 6 side in the illustrated example. This coil spring functions in the same manner as the rubber block piece.

The second and third arms 6 and 7 are vertically arranged at the other end of the arm 6, that is, at the end opposite to the end connected to the first arm 5 and the corresponding end of the arm 7. The link 9 is vertically swayable by an extended link 9.

The second and third arms 6, 7 and the link 9
May be provided with a centering device 10 for automatically centering the midpoint of the first arm 5 at a position corresponding to the standard height of the metal strip pass line P. The centering device 10 may be of a type that performs the above-described automatic centering, that is, centering by the bias of a spring. The figure shows this type as an example. Specifically, the spring-biased centering device 10 illustrated in the drawing
A vertically extending guide rod 12 arranged at a fixed position
A slide block 13 slidable up and down, and the slide block 13 wound around the guide rod 12
A coil spring 14 for urging the spring from above and below is provided, and a predetermined end of the second arm 6 is pivotally attached to the slide block 13. The coil spring 14 has one end in contact with the slide block 13 and the other end in contact with a fixed piece 16 on the guide rod 12. The guide rod 12
Is attached to a bracket 15 fixed on a frame 101 of the brush roll machine 100.

When the upper and lower brush ties 11 and 11 are vertically displaced together with the upper and lower brush rolls 1 and 1 by automatically following the up and down movement of the plate, the second arm is moved through the first arm 5.
Of the centering device 10 is compressed, and the upper or lower coil spring 14 of the centering device 10 is compressed. For this reason, the assembly of the second and third arms 6 and 7 and the link 9 is brought into a neutral state by the spring 14 so that the midpoint of the first arm 5 immediately occupies the standard height of the pass line P. Gives the assembly a tendency to return. In other words, the centering device 10 operates to assist the automatic return of the predetermined orientation, which will be described later, of the upper and lower nozzles 2 and 2 in response to the vertical movement of the upper and lower brush rolls 1 and 1, thereby making this more accurate. In addition, the centering device 10 is configured such that the upper and lower brush rolls 1 and 1 are opened up and down when replacing the brush rolls with different lengths or new ones, and the first and second brush ties 11 and 11 face the upper and lower opposing surfaces. Even when the arm 5 is released, the link mechanism, which is an assembly of the arms 6 and 7 and the link 9, serves to maintain the neutral state or almost the same state. This means that after the replacement as described above, the upper and lower brush rolls 1, 1 are passed through the pass line P in order to resume the operation of the brush roll machine 100.
This means that this can be easily performed without requiring a preliminary position adjustment of the link mechanism in bringing the link mechanism into pressure contact with the plate. That is, when the upper and lower brush rolls 1 and 1 are brought into pressure contact with the plate, the midpoint of the first arm 5 again occupies the center height between the upper and lower opposing surfaces of the upper and lower roll chucks 11 and 11.

When the upper and lower roll chicks 11, 11 are vertically displaced based on the vertical movement of the plate, the first arm 5 is held between the upper and lower surfaces of the roll chicks 11, 11 in a state of being sandwiched between the surfaces. It is vertically displaced by automatically following this vertical displacement. Then, through the first arm 5,
A link mechanism formed by the arms 6 and 7 and the link 9 swings clockwise or counterclockwise in FIG. 1 with the upper and lower rods 3 and 3 as a rotation axis, and through the angular displacement of the upper and lower rods 3 and 3 following the swing. , The upper and lower nozzles 2, 2 change their orientation with respect to the upper and lower polishing regions of the plate.

This change in pointing is shown in FIGS. 6A and 6B. The water spray direction in FIG. 6 is shown as viewed from the side opposite to the side in FIG. If the plate is below the standard height of the pass line P (the pass line indicated by the dashed line in FIG. 6), the upper and lower nozzles 2, 2 compare when the pass line P is at the standard height, When the directivity is downward and exceeds the standard height of the pass line, the directivity at the standard height is upward.

Therefore, by vertically setting the length between the portion corresponding to the center point of the arm 5 of the arm 6 which is the prime mover in the link mechanism and the portion corresponding to the center of the rod 3, the vertical movement of the strip is achieved. Upper and lower brush rolls 1,
In accordance with the vertical follow-up displacement of No. 1, the follow-up deflection can be performed so as to maintain the state in which the upper and lower nozzles 2 and 2 are directed tangentially to the polishing area of the plate.

A torque is applied to the first arm 5 in a certain direction by the rubber-like elastic body 8 so that substantially both ends of the arm 5 are opposed to the upper and lower roll chicks 11, 11. Pressed between.

This construction is always the first regardless of the diameter of the upper and lower rolls 1, 1, that is, the distance between the opposing surfaces of the upper and lower roll chicks 11, 11 and the vertical movement of the roll chicks 11, 11. The center point of the arm 5 occupies the height equivalent to the center of the vertical opposing interval between the two roll chicks 11, 11. For this reason, the arm 6, which is the prime mover of the above-mentioned link mechanism, having the end on the required side connected to a position corresponding to the midpoint of the first arm 5, is provided with the upper and lower roll chicks 1.
At the time of the vertical movement of the first and the eleventh, a mechanical movement proportional to the vertical movement is input using the first arm 5 as a follower. Therefore, the swing of the link mechanism is also reduced by the roll chicks 11 and 1.
This is proportional to the up and down movement of the nozzle 1, and the automatic pointing adjustment of the upper and lower nozzles 2 and 2 follows the movement, which can be accurately performed.

That is, the automatic pointing adjustment of the upper and lower nozzles 2 and 2 with respect to the vertical movement of the upper and lower brush rolls 1 and 1 does not require an electronic control device, but is performed by the link mechanism. It can be done simply.

Unlike the present invention, in the prior art in which the orientation of the nozzle with respect to the polishing area of the plate is fixed, when the strip pass line is higher than the standard height, as shown in FIG. The orientation is no longer inappropriate. Similarly, when the height is lower than the standard height, the orientation of the nozzle lacks accuracy. In FIG. 6C, the same parts as those in FIGS. 6A and 6B are denoted by the same reference numerals.

When the plate is moved up and down, the nozzle is held together with the brush roll so as to hold the nozzle in a tangential direction with respect to the polishing area, even if the nozzle is integrated so as to be vertically displaced to follow the up and down movement of the plate. When the diameter of the roll is reduced due to wear, the height of the brush roll is adjusted according to the wear, and the height of the nozzle is changed. Further, in such a case, the strips are often polished in a form in which the strips having different widths are welded in correspondence with the passage of the strips having different widths.
When replacing the brush roll with the one of the required length, the old roll cannot be pulled out unless the integrated connection of the nozzle to the brush roll is released, and after the insertion of the new roll, it is necessary to perform the integrated connection again, This is not preferable because rapid roll change cannot be performed.

In contrast, when the nozzle 2 is changed to follow the vertical movement of the brush roll 1 at a fixed position as described above, there is no such disadvantage.

When the plate is running at the standard height, the upper and lower roll chucks 11, 11 do not move up and down, so that the first arm 5 does not move up and down, and the upper and lower nozzles 2, 2 have the corresponding orientation. Maintain a steady orientation.

A modification of the embodiment of the invention shown in FIG.
The point where the third arm 7 extends from the lower rod 3 towards the lower roll zip 11, at the intermediate part of the second arm 6 and at the corresponding end of the third arm 7 Except that the arms 6, 7 are connected by a link 9 and that the centering device 10 is linked to the third arm 7, the embodiment shown in FIGS. The configuration is substantially the same. Therefore, in this embodiment, only the side view corresponding to FIG. 1 is shown in FIG. FIG. 7 is shown as a view from the side opposite to FIG.

The operation of the embodiment shown in FIG. 7 is substantially the same as that of the embodiment shown in FIGS.

[0038]

As is apparent from the above description, the present invention is directed to a modified brush roll machine as described above, which embodies the displacement of the upper and lower brush rolls following the up and down movement of the plate. Automatically adjusts the water jet nozzle so as to maintain the state in which the water injection nozzle is directed tangentially to the polishing area of the plate in accordance with the vertical displacement of the plate. There is an effect that can be achieved in a form that can be performed simply and concisely.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a plan view showing a part of the brush roll machine shown in FIG.

FIG. 3A is an enlarged cross-sectional detailed view (a plan view equivalent view) of a connecting portion of the first and second arms shown in FIGS.
FIG. 3B is a sectional view taken along line III-III of FIG.
FIG. 3C is a front view of FIG. 3A from which the first arm is omitted.

4 (A) is a front view of the centering device in the embodiment of FIG. 1, FIG. 4 (B) is a side view thereof, and FIG. 4 (C).
Shows a plan view.

FIG. 5 is a perspective view schematically showing how the first, second, and third arms and links are connected and how the rod with nozzle is connected in the embodiment.

FIGS. 6 (A) and 6 (B) are explanatory diagrams of a change in orientation of a water injection nozzle of the present invention corresponding to vertical movement of a plate, and FIG. 6 (C) is an explanatory diagram of orientation of a conventional nozzle with respect to plate descending. .

FIG. 7 is a side view showing another embodiment of the present invention.

[Explanation of symbols]

 P Metal strip pass line 1 Brush roll 2 Water injection nozzle 3 Rod 4 Bearing 5 First arm 6 Second arm 7 Third arm 8 Rubbery elastic body 9 Link 10 Centering device 11 Roll chick 12 Guide rod 13 Coil spring 100 Brush roll machine

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B24B 29/00 B24B 7/12 B24B 29/06 B24B 55/02 B21B 45/06

Claims (2)

(57) [Claims] 1. A rotating brush roll is pressed against upper and lower surfaces of a metal strip pass line running laterally in a longitudinal direction, and water is jetted tangentially from a nozzle to a brushing portion thereof, and the upper and lower surfaces of the strip are polished. In addition, in a brush roll machine in which the upper and lower brush rolls are displaced up and down together with the roll chick thereof in response to the vertical movement accompanying the traveling of the metal strip pass line, a third extending in the front-rear direction of the strip. One arm is interposed between the upper roll chick and the lower roll chick, and the arm is provided with a torque in a certain direction by a rubber-like elastic body. The second arm and the third arm, which are pressed against the upper and lower opposing surfaces of the upper and lower roll chicks, One end of one of the second and third arms is connected to a point corresponding to the midpoint of the length of the first arm, and the other end is connected to the corresponding end. On the side, the second and third arms are connected by a vertical link in an up-and-down swinging rotation. The second and third arms extend parallel to the brush roll and are arranged at fixed positions to rotate in the direction around the axis. Movable rods are connected, and one of the arms is equipped with a water jet nozzle for the upper brush roll and the other rod with a water jet nozzle for the lower brush roll. Water spray nozzle automatic orientation adjustment type brush roll machine. 2. A system for automatically centering the first arm in a position corresponding to a standard height of a metal strip pass line in an assembly of a second arm, a third arm and a vertical link. 2. The brush roll according to claim 1, further comprising a centering device.