JP2000247516A - Changing device for progress direction of band-like material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a progress direction changing device for a band-like material for correcting the movement of the width directional deviation of a band- like material, by simple constitution. SOLUTION: This band-like material progress direction-changing device 1 has many gas nozzles 4 in the spiral band-like range of the opposite surface to a band-like material 2 forming the curved surface of a tubular floater 3. In this case, one or more crown type guide rolls 11 and 12 for guiding the material 2 are arranged in IN and/or OUT sides to the material 2 of the floater 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traveling direction changing device for continuously supplying a strip such as a steel plate or an aluminum thin plate from one processing line to another processing line in the next step.

[0002]

2. Description of the Related Art In feeding a strip of a steel sheet or a thin aluminum sheet from one processing line to the next processing line while changing the traveling direction, the belt is spirally moved on a cylindrical floater to change the traveling direction. A device to be changed has been proposed, for example, in Japanese Utility Model Laid-Open No. 4-127775.

As shown in FIG. 5, a conventional apparatus disclosed in Japanese Utility Model Laid-Open No. 4-127775 has a spiral shape having a large number of gas injection ports 52 on a curved surface of a semi-cylindrical cylindrical floater 50. The belt-shaped material traveling path is provided, and the direction of the belt-shaped material 70 is changed by advancing or guiding along the spiral belt-shaped traveling path while floating. The gas ejected from the gas ejection port 52 is supplied by a gas supply device 54 connected to a flexible hose 53 at one end of the cylindrical floater 50.

In this apparatus, both ends of the cylindrical floater 50 are supported and mounted on a movable base 51 having a U-shaped plane. The movable table 51 is supported at its center at a vertical axis 55 on a bearing 56 on the floor surface so as to be freely rotatable, and at both lower surfaces thereof are supported on rollers 57 in a rotating direction on rails 58 in a short rotating direction on the floor surface. ing. Further, the movable table 51
Is connected to a turning cylinder 59.

[0005] In addition, an edge detector 60 is disposed on the exit side of the strip 70 with respect to the cylindrical floater 50, and the turning cylinder 59 is provided via a hydraulic unit 61 based on a detection signal of the edge detector 60. Is provided.

[0006] According to this apparatus, when the band-shaped material 70 floating and moving on the cylindrical floater 50 is displaced in the width direction and comes out of the center of the next processing line, the movable table 51 and the cylindrical member are removed. By swirling the floater 50 in one of the left and right directions, it is possible to return the band-shaped material 70 to the original position.

[0007] In Japanese Utility Model Laid-Open No. 4-127775, as another embodiment different from the above-mentioned configuration, the movable table 5 is used.
1 shows an apparatus configured to tilt and move the movable table 51 in a seesaw shape, and an apparatus configured to linearly move the movable table 51 in the axial direction of the cylindrical floater 50. In any case, movable table 5
Similar to the first device described above in which the center of the band-shaped material 70 is rotated by moving the first member, the device described above is intended to obtain the same effect by tilting movement and linear movement instead of the turning movement. .

[0008]

However, these devices have the following problems. That is, these devices are intended to move the entirety of the cylindrical floater 50 on the movable table 51 at a time, regardless of whether the device is turned, inclined, or moved linearly. However, the size and size of the structure became complicated, and there were many factors that resulted in high costs.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an apparatus for changing the traveling direction of a strip material which can correct the displacement of the strip material in the width direction with a simple configuration. .

[0010]

The present invention employs the following means in order to solve the above-mentioned problems. That is, the apparatus for changing the traveling direction of a strip according to claim 1 is an apparatus for changing the traveling direction of a strip having a large number of gas ejection ports in a spiral band-shaped area of a curved surface of a cylindrical floater facing the strip. hand,
One or more crown-shaped guide rolls for guiding the band-shaped material are arranged on the entrance side and / or the exit side of the band-shaped material of the cylindrical floater.

The crown type guide roll referred to here is:
The configuration is different from that of a normal cylindrical guide roller, in that the middle portion of the roll is formed to have a bulging shape as compared with its end portion. According to the present invention, the strip material passes over the crown-shaped guide roll when entering and / or exiting the cylindrical floater. At this time, in the band-shaped material, the largest frictional force is applied to the swollen shape portion of the crown-shaped guide roll. Therefore, when the band-shaped material is shifted in the width direction, the frictional force is changed. As a result, a centering force acts to correct the deviation, that is, to return to the center.

Further, in the apparatus for changing the traveling direction of the belt-shaped material according to the present invention, the one or more crown-shaped guide rolls may include:
Characterized in that it is configured to contact the strip with a total contact angle of 90 ° or more.

According to this, the above-mentioned centering force can be more effectively applied to the strip.
This is because the centering force is substantially proportional to the frictional force, and the frictional force is substantially proportional to the total contact angle between the crown-shaped roll and the strip. The present invention, which focuses on this, enables the centering force to be more effectively exerted by setting the total contact angle to 90 ° or more.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a schematic plan view of a device for changing the direction of travel of a strip material according to an embodiment of the present invention, FIG. 2 is a side view taken along the line II-II in FIG. 1, and FIG. 4 is a side view taken along the line IV-IV in FIG.

As shown in FIG. 1, the traveling direction changing device 1 is provided with a cylindrical floater 3 for changing the traveling direction of the strip 2. The cylindrical floater 3 is formed with a large number of gas ejection ports 4 provided in alignment with the curved surface of the traveling path range (spiral band range) of the spiral band 2. As shown in FIG. 1, the apparatus 1 for changing the traveling direction of the band-shaped material in the present embodiment is placed on the entrance side of the downstream processing line L and on the exit side of the preceding processing line (not shown).

In FIG. 1, a bridle roll 10 for guiding the strip 2 to the cylindrical floater 3 is provided between the preceding processing line and the cylindrical floater 3, and
A bridle roll 14 for guiding the strip 2 to the subsequent processing line L is provided between the and the subsequent processing line L, respectively. In addition, the bridle roll 1
0 and the cylindrical floater 3, and between the cylindrical floater 3 and the bridle roll 14, respectively, the entrance-side crown-shaped guide roll 11 and the exit-side crown-shaped guide roll 1.
2 are provided. These are each constituted by a plurality of crown rolls, as is apparent from FIGS. As shown in FIG. 1, FIG. 2 or FIG. 4, a normal cylindrical guide roll 1 is provided between a plurality of rolls constituting the delivery-side crown-shaped guide roll 12.
3 are provided.

The entrance-side crown type guide roll 11 is shown in FIG.
As shown in the figure, two crown rolls 11a and 11b
Are provided in combination. As shown in FIG. 4, the delivery-side crown-shaped guide roll 12 includes three crown rolls 12 before and after the two cylindrical guide rolls 13.
a, 12b, and 12c are provided in combination.

In the present embodiment, one or more crown-shaped guide rolls 11 and 1 on the entrance side and / or the exit side are provided.
2 is provided so as to come into contact with the strip 2 at a total contact angle of 90 ° or more on each of the entrance side and the exit side. That is, if the entrance side crown type roll 11 is described as an example, for example, the contact angle between the crown roll 11a and the strip 2 (the crown roll 1
The angle (as viewed from the center of the crown roll 11a) of the arc portion of the strip 2 contacting 1a is 60 °, and the contact angle between the crown roll 11b and the strip 2 is 50 °.
That is, 11050 (= 50 + 60 ≧ 90). The same applies to the exit-side crown-shaped roll 12.
However, the present invention does not mean that the above conditions must be satisfied. In addition, it is desirable that the entrance-side and / or exit-side crown-shaped rolls 11 and 12 are provided at a position as close to the cylindrical floater 3 as possible (the reason will be described later).

The crown type guide rolls 11 and 1
As shown in FIG. 3, the specific shape of No. 2 is such that its central portion is formed in a shape bulging in a crown shape.

The operation and effects of the apparatus 1 for changing the traveling direction of the strip having the above-described configuration will be described below. In the traveling direction changing device 1, the traveling direction of the band-shaped material 2 brought into a floating state by the gas ejected from the gas ejection port 4 is changed along the spiral traveling path. At this time, the belt-shaped material 2 flows in the order of the preceding processing line, the bridle roll 10, the entrance-side crown-shaped guide roll 11, the cylindrical floater 3, the exit-side crown-shaped guide roll 12, the bridle roll 14, and the subsequent processing line L. It will progress inside. Note that, while the output-side crown-shaped guide roll 12 is in progress, as is clear from the above description of the device configuration, the roll also passes through the ordinary cylindrical guide roll 13 at the same time.

As described with reference to FIG. 3, the entrance-side and exit-side crown-shaped guide rolls 11 and 12 have a crown shape with a bulged central portion. In FIG. 3, it is assumed that the strip 2 is being fed upward from below. In the figure, reference numeral 15 indicates a center line of the crown-shaped guide roll 11 or 12, and reference numeral 16 indicates a center line of the belt-shaped material 2 fed in contact with the crown-shaped guide roll 11 or 12. When both center lines 15 and 16 are coincident with each other,
Is traveling in the correct position. In addition, the belt-shaped material 2 in progress on the crown-shaped guide rolls 11 or 12 includes:
The portion in contact with the center line 15 receives the maximum frictional force.

Now, let us consider a case where, for example, a situation in which the strip 2 progresses from the center line 16 at a correct position shown in FIG. In the figure, the center line 16 '
Indicates a state shifted to the right side. In this case, the strip 2
The maximum frictional force from the center line 15 of the crown-shaped guide roll is applied to a position closer to the left than the center line 16 '. Therefore, due to this frictional force, an action force is generated in the belt-shaped material 2 to return it to the left side. Conversely, when the belt-shaped material 2 is shifted to the left, an action force for returning to the right is generated. That is, when the strip 2 is displaced in the width direction, a centering force for returning the strip 2 to the center of the crown-shaped guide rolls 11 and 12 is generated on the strip 2.

This centering force is substantially proportional to the magnitude of the contact angle of the strip 2 with the surface of the crown-shaped guide roll 11 or 12. In the present embodiment, the total contact angle of one or more crown-shaped guide rolls 11 and / or 12 to the strip 2 is set to 90 ° or more. Is the center line 15 of the crown-shaped guide rolls 11 and / or 12.
, That is, a centering force that achieves a more stable progress can be obtained.

The centering force is changed from the installation position of the cylindrical floater 3 to the crown type guide roll 11 or 1.
It is also affected by the distance to the position where 2 is placed,
When the crown-shaped guide rolls 11 and 12 are provided in the vicinity of the cylindrical floater 3, a stable centering force can be obtained.

As described above, according to the apparatus 1 for changing the traveling direction of the band-shaped material in the present embodiment, the body of the cylindrical floater 3 can be made movable or the band-shaped material can be placed on the body of the cylindrical floater 3 as described in the conventional example. It is possible to provide the traveling direction changing device 1 which can correct the displacement movement and the meandering of the band-shaped material 2 in the width direction with a simple configuration without the necessity of adding a displacement prevention mechanism.

In the above embodiment, the entrance-side or exit-side crown-shaped guide rolls 11 or 12 are respectively composed of two crown rolls and three crown rolls. It is not limited. That is, any of the entrance-side and exit-side crown-shaped guide rolls 11 and 12 can be constituted by an arbitrary number of crown rolls, and may be provided in any combination. Further, a configuration may be adopted in which one or more crown-shaped guide rolls are provided on only one of the entrance side and the exit side.

In the above embodiment, the cylindrical floater 3
Had only one machine, but when advancing the strip 2 from the preceding processing line to the subsequent processing line,
If it is necessary to change the direction of travel by 180 °,
Two sets of the same cylindrical floaters 3 as described above may be provided continuously. At this time, the front and rear processing lines are arranged in parallel, and two sets of cylindrical floaters 3 having a change angle of 90 ° are continuously connected between the exit side of the front processing line and the entrance side of the rear processing line. In the case of disposing them in an arrangement, it is preferable to provide a crown-shaped guide roll on the entrance side and / or the exit side of each cylindrical floater 3 in the same manner as described above. That is, in this case, a crown-shaped guide roll is also provided between the two sets of cylindrical floaters 3.

[0028]

As described above, the apparatus for changing the traveling direction of a strip according to the first aspect of the present invention includes at least one or more guides for guiding the strip to the entrance side and / or the exit side with respect to the strip of the tubular floater. Because the crown-shaped guide rolls are arranged, the strip-shaped material has a force that immediately corrects the displacement when it is displaced from the width direction, that is, a centering force that enables the return to the center. Will work.
This is because, as described above, the frictional force between the crown-shaped roll and the belt-shaped material is maximized at the bulged portion at the center. Therefore, the apparatus for changing the direction of travel of a strip according to the present invention can realize a more stable action of changing the direction of travel of the strip, and the introduction of the strip at a correct position into a processing line or the like at a subsequent stage of the strip passing through the apparatus. Can be. Also,
The present invention realizes such an effect with a very simple configuration. Therefore, it is one of the great effects that the apparatus can be provided at an extremely low cost.

Further, in the apparatus for changing the traveling direction of the belt-shaped material according to the present invention, the one or more crown-shaped guide rolls may include:
The centering force can be more effectively applied to the band-shaped material because the band-shaped material is configured to contact the band-shaped material at a total contact angle of 90 ° or more.

[Brief description of the drawings]

FIG. 1 is a schematic plan view of a device for changing a traveling direction of a strip material according to an embodiment of the present invention.

FIG. 2 is a side view taken along the line II-II shown in FIG.

FIG. 3 is a front view of a crown type guide roll.

FIG. 4 is a cross-sectional view taken along the line VV shown in FIG.

FIG. 5 is a schematic plan view of a conventional strip-moving-direction changing device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 strip-shaped material traveling direction changing device 2 strip-shaped material 3 cylindrical floater 4 gas ejection port 11, 12 crown-shaped guide roll

Continued on the front page (72) Inventor Masato Iri 1 Kawasaki-cho, Chuo-ku, Chiba City, Chiba Prefecture Inside the Chiba Works of Kawasaki Steel Corporation (72) Inventor Ikko Mitsugutake 1 Kawasaki-cho, Chuo-ku, Chiba City, Chiba Prefecture Kawasaki Steel Corporation Chiba Works (72) Inventor Jo Tazawa 4-6-22 Kannon Shinmachi, Nishi-ku, Hiroshima City, Hiroshima Prefecture Mitsubishi Heavy Industries, Ltd.Hiroshima Works (72) Inventor Etsuro Hirai Kannon Shinmachi 4 in Nishi-ku, Hiroshima Hiroshima Prefecture 6-22, Mitsubishi Heavy Industries, Ltd. Hiroshima Research Laboratory (72) Inventor Atsushi Higashio Atsushi 4-2-2 Kannon Shinmachi, Nishi-ku, Hiroshima-shi, Hiroshima F-term in Hiroshima Research Laboratory Mitsubishi Heavy Industries, Ltd. 3F104 AA05 CA17 FA19 GA06

Claims (2)

[Claims] 1. A device for changing the traveling direction of a strip having a number of gas ejection ports within a spiral band shape of a strip-shaped member facing surface which forms a curved surface of a cylindrical floater, wherein A device for changing the traveling direction of a strip material, wherein at least one crown-shaped guide roll for guiding the strip material is arranged on an entrance side and / or an exit side. 2. The traveling direction change of the strip according to claim 1, wherein the one or more crown-shaped guide rolls are configured to contact the strip at a total contact angle of 90 ° or more. apparatus.