JPH1034234A - Continuous processing equipment for strip metal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To introduce a steel strip into the processing equipment such as a side trimmer, in a state that deviation in a position in the plate width direction is small even when the tail end part of the steel strip is out of a pay-off reel. SOLUTION: Suction piping sucking the rear surface of the steel strip S is assembled in a sliding table 20 guiding the tip part and the tail end part of the steel strip S, and its opening end and the sucking port of a sucking device K are connected by a suction hose H. A current detector 11a is in connect with the motor 11 of the pay-off reel 1. When the detected value A of the current detector 11a has reached a prescribed value (a value showing a state where the steel strip S is out of the pay-off reel 1) or below, a signal S2 of starting suction is outputted to the sucking device K, and the suction of the steel strip S is started.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous processing apparatus for a metal strip which continuously passes through a processing apparatus while rewinding a metal strip wound in a coil shape by a rewinding machine. Even if the end comes off the rewind machine,
The present invention relates to a metal strip capable of holding both end positions in a plate width direction within a predetermined range and moving toward a processing facility.

[0002]

2. Description of the Related Art In a continuous metal strip processing facility, a tail end of a preceding material unwound from a rewinding machine and a front end of a succeeding material are connected by a welding machine, so that a metal band of a plurality of coils is continuously formed. Processing may be performed. FIG. 17 shows an example of this. Here, a payoff reel (rewinding machine) 1, a threading table 2, a pinch roll 3, a leveler 4, a welding machine 5, a side guide 6, a pinch roll 7, and a side trimmer 8 are arranged in this order. Both ends in the sheet width direction of the steel strip S arranged and connected by the welding machine are cut by the side trimmer 8 and further conveyed downstream.

The threading table 2 is a threading table provided to guide the leading end and the trailing end of the steel strip S unwound from the payoff reel 1 to the pinch roll 3. When the tail end is sent out, it is used by being raised to a predetermined height.

In such a continuous processing facility, it is necessary to transport the steel strip S so that the center position in the plate width direction does not greatly deviate from the set position. In other words, when the center position in the width direction of the plate is greatly deviated from the set position, the trimming of the side trimmer 8 (cutting of both ends in the width direction where a defective portion is likely to occur) is made larger than the set value on one side and hardly made on the other May occur, and the purpose of the trimming may not be achieved.

For this reason, conventionally, as shown in FIG.
When the allowable range of the displacement of the steel strip S in the sheet width direction is large, the side guide 6 is installed to regulate the sheet width direction of the steel strip S. In addition, it has been proposed to move the payoff reel 1 in the sheet width direction in accordance with the shift amount of the steel strip S upstream of the side trimmer 8.

That is, for example, a position detection for detecting a center position in the sheet width direction at each position of the steel strip S being conveyed between the payoff reel 1 and the pinch roll 3 and between the side guide 6 and the pinch roll 7. Controllers 91 and 92 are installed, and the controller 9 calculates the amount of deviation from the set position of the center position in the plate width direction at each of the positions based on the detection values from both position detectors 91 and 92. Based on the amount, feedback control is performed to move the payoff reel 1 in the plate width direction so that the amount of displacement is within a predetermined range. FIG.
Reference numeral 93 denotes a moving device that moves the payoff reel 1 in the board width direction by an amount corresponding to a control signal from the control device 9.

[0007]

However, among the above-mentioned conventional methods, the method of controlling the movement of the payoff reel in the sheet width direction is a method in which the steel strip is wound around the payoff reel with a sufficient diameter. However, the winding amount of the steel strip is 1-2 turns, and the force at which the tail end of the steel strip is supported by the payoff reel is weakened, or the tail end is completely disengaged from the payoff reel. In this case, even if the payoff reel is controlled to move in the sheet width direction, the position control of the steel strip in the sheet width direction is not performed.

Further, when the tail end is completely disengaged from the payoff reel, the tension of the steel strip becomes extremely small on the upstream side of the side trimmer, and only the side guide restricts the position in the plate width direction. If the allowable range of displacement in the width direction is small, the side guide regulates it (by reducing the allowance for the width of the steel strip). Since the end portion in the width direction is broken, there is a problem in quality.

The present invention has been made in view of such problems of the prior art, and the force at which the tail end of the steel strip is supported by the payoff reel is reduced, or the tail end of the steel strip is reduced. It is an object of the present invention to enable a steel strip to be introduced into a processing facility such as a side trimmer in a state where the displacement in the sheet width direction is small even when the steel strip comes off a payoff reel.

[0010]

In order to solve the above-mentioned problems, the invention according to claim 1 is directed to a metal for continuously passing through a processing facility while rewinding a metal band wound in a coil shape by a rewinding machine. In the continuous band processing equipment, an adsorbing means for adsorbing a metal band is disposed between the rewinding machine and the processing equipment. It is intended to provide a continuous processing equipment for metal strips, which is started when it becomes.

The suction means is constituted, for example, by fixing, connecting, or incorporating a suction member or device on a table which receives the upper surface, the lower surface, or both surfaces of the metal strip to be conveyed. The start of the operation of the suction unit is controlled by, for example, a control unit including the support force detection device and a comparison unit that compares the detected support force with a predetermined value and outputs an operation start command to the suction unit. This can be done by the device.

[0012] According to this equipment, the tail end portion of the metal strip goes to the processing equipment while being supported by the adsorption means.
Tension is applied to the tail end portion of the metal strip upstream of the processing equipment, and the position in the sheet width direction is regulated. Thereby, the tail end side portion of the metal strip can be directed to the processing equipment in a state where the displacement in the plate width direction is small.

[0013] The invention according to claim 2 is characterized in that, in the continuous treatment equipment for metal strip according to claim 1, the adsorbing means is incorporated in a passing plate table provided on an outlet side of a rewinding machine. Is what you do.

According to a third aspect of the present invention, in the continuous processing equipment for metal strip according to the first aspect, the adsorbing means is provided near an entrance side of the processing equipment. According to a fourth aspect of the present invention, in the metal strip continuous processing equipment according to any one of the first to third aspects, a moving unit for moving the adsorbing unit in a width direction of the metal band is provided. Is characterized in that the suction means is moved in accordance with the width direction position of the metal strip between the rewinding machine and the processing equipment.

In this equipment, by providing the moving means, the position of the suction means in the plate width direction is moved so that the amount of deviation from the set value of the width direction position of the metal strip on the upstream side of the processing equipment is predetermined. Since the range can be set as the range, the tail end side portion of the metal strip can be directed to the processing equipment in a state where the positional deviation in the plate width direction is small.

[0016]

Embodiments of the present invention will be described below. FIG. 1 is a schematic configuration diagram showing a first embodiment of the present invention, and shows an upstream portion of the continuous steel strip processing facility shown in FIG. 17 described above.

In this equipment, a steel strip S unwound by a payoff reel (rewinding machine) 1 passes through a threading table (threading table) 20, a pinch roll 3, and a leveler 4, and is then welded to a welding machine 5 downstream of the same. And the tail end of the preceding material conveyed to the side trimmer 8 and unwound from the coil is connected to the tip of the succeeding material by the welding machine 5, and the steel strip S of a plurality of coils is continuously trimmed by the side trimmer 8. Is what you do. FIG. 2 is a plan view of the threading table 20. FIG. 3 is a cross-sectional view taken along line AA of the threading table 20, and FIG.
Is a side view as viewed from above.

The threading table 20 has a steel strip S
A guide base 21 formed to have a width corresponding to the width of the steel strip S and receiving the lower surface of the steel strip S, and a slide supported in the guide base 21 so as to be freely inserted into and removed from the payoff reel 1 along the traveling direction of the steel strip S. The threading table 20 has a plurality of suction holes 23 formed uniformly on the entire upper surface of the guide table 21 and a suction pipe 2 connected to the suction holes 23.
4 are incorporated.

That is, the guide table 21 has a U-shape whose longitudinal section along the traveling direction of the steel strip S is open to the payoff reel 1 side.
Is to be put in and out. The guide 21
Is smaller than the width of the slide table 22, both ends in the width direction of the guide table 21 are also opened. The slide table 22 extends along the traveling direction of the steel strip S and connects a plurality of narrow members 22a arranged in parallel with a predetermined interval therebetween and ends of the narrow members 22a on the payoff reel 1 side. A branch pipe 24a of the suction pipe 24 is arranged between the narrow members 22a adjacent to each other.

Above each branch pipe 24, a plurality of short pipes 23a extending upward are integrally formed at predetermined intervals in the longitudinal direction, and these short pipes 23a are provided on the upper plate 21a of the guide table 21. The suction holes 23 are formed on the upper surface of the guide table 21 by being fitted into the holes 21b. Each branch pipe 24a
Are arranged below the slide table 22 in the guide table 21, and are connected to a main pipe 24b arranged on the pinch roll 3 side in the guide table 21 and extending in the plate width direction. Main pipe 24
The opening end 24c extending to the outside of the guide table 21b and the suction port of the suction machine K are connected by a suction hose H.

That is, in this embodiment, the guide table 2
1, the suction port 3, the suction pipe 24, the suction machine K, and the suction hose H constitute the suction means of the present invention. The threading table 20 includes mounting members 25 fixed to both ends of the guide table 21 on the pinch roll 3 side in the width direction.
The cover member (member fixed to the outer ring side of the bearing) 32 that covers the shaft end of the lower roll of the pinch roll 3 is attached by the arc-shaped holding portion 25 a of the guide table 21. The lower surface is supported by a cylinder 26, and can be raised and lowered about the axis of the pinch roll 3 by the vertical movement of the cylinder 26.

That is, the threading table 20
In the case of guiding the leading end of the coil, the coil diameter is large, and in the case of guiding the tail end, the coil diameter is small, so that the guiding surface of the threading table 20 is raised so as to be parallel to the surface of the steel strip S. It is used by changing the angle according to the coil diameter. Further, if the variable range of the elevation angle is increased, it is possible to cope with the case where the winding of the coil is reversed as shown by the broken line in FIG. Further, the slide table 22 is moved in and out of the guide table 21 so that the end member 22b is arranged at a position close to the outer periphery of the coil according to the coil diameter.

On the other hand, the lower roll of the pinch roll 3 includes:
The speed detector 31 for detecting the rotation speed of the pinch roll 3
Connected, and the speed detection value V is the coil diameter of the control device 10.
It is input to the arithmetic unit 10a. In addition, the payoff reel 1
The motor 11 has a current detector 11a for detecting a load current.
And a speed detector 11b for detecting a rotation speed are connected,
The speed detection value N from the speed detector 11b is a coil diameter calculator.
10a, the current detection value A from the current detector 11a is compared.
Input to each of the devices 10b. The comparator 10b pays
The off-reel 1 does not support the tail end of the steel strip S.
Current setting value A ₀And the input current detection value A
Then, the detection value A becomes the set value A₀If it becomes the following,
Activation signal S_TwoIs output.

The coil diameter calculator 10a includes the pinch roll 3
The remaining coil diameter D of the payoff reel 1 is calculated from the detected speed value V of the payoff reel 1 and the detected speed value N of the payoff reel 1 and is output to the comparator 10c. The comparator 10c when the remaining coil diameter D threading table 20 guided required to range (predetermined value when the tip guide D ₁ or more, the predetermined value D ₂ following upon tail end guide) the by in And the cylinder 26
The control signals S ₁ to be set in a predetermined height corresponding to the remaining coil diameter D of the cylinder drive unit is connected to the cylinder 26 2
6a.

[0025] Thus, the residual coil diameter D becomes the predetermined value D ₂ following the comparator 10c, the output of the control signal S _1, is set to a height that the height of the cylinder 26 corresponding to the remaining coil diameter D, the slide With the end member 22b of the table 22 extended to a predetermined position, the guiding of the tail end of the steel strip S by the threading table 20 is started. Thereafter, the payoff reel 1 does not support the tail end of the steel strip S, and the current detection value A is set to the set value A by the comparator 10b.
_When it becomes ₀ or less, the operation signal S ₂ is output to the suction machine K, and the air under the steel strip S is sucked from the suction port 23 on the upper surface of the threading table 20. Sucked on the side.

As a result, the tail end portion of the steel strip S heads toward the side trimmer 8 while being attracted to the threading table 20 while being supported by the suction force. Even when it is off the threading table 20, tension is applied to the tail end portion upstream of the side trimmer 8 to regulate the position of the steel strip S in the sheet width direction. Therefore, as compared with the conventional case in which such a suction means is not provided, the tail end portion of the steel strip S is provided with the side trimmer 8 in a state where the displacement in the plate width direction is small.
You can go to.

In this embodiment, the suction pipe 23 is formed so that the suction port 23 is formed uniformly on the entire upper surface of the guide table 21 and the suction force from each suction port 23 is equal. It is preferable to make the suction force of the steel strip S uniform over the entire surface of the loading table 20. Further, in this embodiment, since the suction port 23 and the suction pipe 24 are incorporated in the threading table 20, the suction table provided with the necessary suction port 23 when the threading table 23 is not incorporated and the support table for supporting the same. Only, the cost is reduced.

FIG. 4 is a schematic configuration diagram showing a second embodiment of the present invention, and FIG. 5 is a plan view of a threading table in this embodiment. FIG. 6 is a cross-sectional view of the threading table taken along the line BB.
The part attached to the side is a side view seen from above in FIG.

In this embodiment, as in the first embodiment, the suction pipe 24 and the suction port 23 are incorporated in the threading table 20, and
Guide table 21 is a suction table, and the control device 1
With 0, the guide of the steel strip S by the threading table 20 and the suction of the tail end side portion are performed. Further, the movement control of the payoff reel 1 in the plate width direction described above is performed based on the detection values from both position detectors 91 and 92.
The configuration is performed by the control device 9 and the moving device 93.

In addition, the suction pipe 2 in the guide table 21
4 can be moved integrally with the guide table 21 in the plate width direction. That is, adjacent branch pipes 24a are connected to each other by the rod-shaped connection member 26 at three points at the longitudinal center and both ends of the branch pipe 24b, and each of the connection members is connected to the branch pipe 24a at one end in the plate width direction. A bar 27 extending from the same position as 26 to the outside of the guide table 21 is fixed, and its tip is fixed to a side member 28 extending in a direction perpendicular to the bar 27. A cylinder 29 for moving the cylinder 28 in the plate width direction is fixed. A telescopic tube 24d is interposed between the opening end 24c of the main pipe 24b and the suction hose H. When the suction pipe 24 moves, the telescopic tube 24d
Is expanded and contracted so that the hose H is not twisted.

Therefore, by the operation of the cylinder 29,
The suction pipe 4 fixed to the side member 28 via the bar 27 and the connecting member 26 is moved in the plate width direction integrally with the guide table 21 of the threading table 20. Note that this movement amount is determined by the slide table 22 of the threading table 20.
Is set in a range in which the short pipe 23 above the branch pipe 24b does not contact the narrow member 22a, that is, a range smaller than the difference between the interval between the adjacent narrow members 22a and the outer diameter of the short pipe 23.

The cylinder 29 has a cylinder driving device 29
a of the cylinder 29 is moved by the position detector 9 installed between the side guide 6 and the pinch roll 7.
Based on the position detection value I ₂ from 2, and is calculated by the moving amount calculating unit 10d of the controller 10A. The position detector 92 detects the center position of the steel strip S in the sheet width direction, and detects the position detection value I ₂ from the position detector 92.
Is input to the movement amount calculator 10d via the switch element 10e of the control device 10A. This switch element 10e
Closes when the control signal S ₂ from the control unit 10 is output, is set to open when otherwise.

Therefore, when the control signal S ₂ is output from the control device 10, the movement amount calculator 10 d receives the position detection value I ₂ from the position detector 92 and the position detection value from the position detector built in the cylinder 29. The movement amount of the cylinder 29 is calculated from the position detection value (a value indicating the position of the guide base 21 in the width direction) I _S, and a control signal S ₃ corresponding to this is transmitted to the cylinder driving device 29.
output to a. That is, the guide table of the threading table 20 is controlled by the control device 10A such that the amount of deviation of the center position of the steel strip S in the width direction between the side guide 6 and the pinch roll 7 from the set position is within a predetermined range. Feedback control for moving the suction pipe 21 and the suction pipe 24 integrated therewith in the plate width direction is executed.

Therefore, in this embodiment, as in the first embodiment, even when the tail end of the steel strip S is disengaged from the payoff reel 1 and remains on the threading table 20, it is located upstream of the side trimmer 8. In addition to restricting the position of the steel strip S in the plate width direction by applying a tension to a certain tail end side portion, the position of the guide table 21 of the threading table 20 in the plate width direction is set to the position immediately before the side trimmer 8. Control is performed such that the displacement of the band S in the width direction is within the set range. Thereby, the tail end side portion of the steel strip S can be directed to the side trimmer 8 with a small displacement in the plate width direction, and the effect is higher than in the case of the first embodiment.

FIG. 7 is a schematic configuration diagram showing a third embodiment of the present invention. In this embodiment, a suction table 12 is provided between the welding machine 5 and the side guide 6, and a suction port 23 and a suction pipe 24 are not provided between the payoff reel 1 and the pinch roll 3. A threading table 2 is provided. FIG. 8 is a plan view of the suction table 12, and FIG. 9 is a cross-sectional view taken along line CC of FIG.

The suction table 12 has a box 12a similar in shape to the guide table 21 of the threading table 20 of the first embodiment (different in that the opening having a U-shaped cross section is closed).
Inside, two upper and lower systems of suction pipes 24A and 24B composed of the same branch pipe 24a and main pipe 24b as described above are arranged, and each main pipe 24b is connected to the suction machine K by a separate hose H. That is, here, the upper suction pipe 24A
Is arranged on the end side in the plate width direction, the branch tube 24a of the lower suction pipe 24B is arranged on the center side in the plate width direction, and above the branch pipe 24a of the suction pipe 24A. A short pipe shorter than the short pipe 23a of the suction pipe 24B is formed, and its tip is fitted into a hole provided in the upper plate 12b of the box body 12a. Therefore, for example, by switching the suction machine K side, the branch pipe 24a suctions only with the suction pipe 24B arranged on the center side in the plate width direction, or the two suction pipes 24A, 24A
By selecting whether to perform suction in B, the suction range in the plate width direction can be changed according to the plate width of the steel strip S.

On the other hand, similarly to the first embodiment, a current detector 11a for detecting a load current is connected to the motor 11 of the pay-off reel 1, and a current detection value A from the current detector 11a is supplied to the controller 10B. Is input to the comparator 10b. The comparator 10b, the current detection value A to output an actuation signal S ₂ to the suction unit K If a current set value A ₀ or less. Further, the movement control of the payoff reel 1 in the plate width direction described above is performed based on the detection values from both position detectors 91 and 92.
The configuration is performed by the control device 9 and the moving device 93. Further, the operation of the suction machine K is stopped when the tail end of the steel strip S is introduced into the welding machine 5 and clamped.

[0038] Thus, in a state of payoff reel 1 does not support the tail of the steel strip S, if the current detection value A becomes the set value A ₀ following by a comparator 10b, operating the suction device K signal S ₂ Is output, and the air below the steel strip S is sucked from the suction port 23 on the upper surface of the suction table 12, so that the steel strip S is sucked toward the suction table 12.

As a result, the tail end portion of the steel strip S moves toward the side trimmer 8 while being supported by the suction force while being attracted to the suction table 12, so that the tail end of the steel strip S moves from the payoff reel 1. Even if it comes off, tension is applied to the tail end side portion between the side trimmer 8 and the suction table 12, and the position of the steel strip S in the plate width direction is regulated. for that reason,
The tail end side portion of the steel strip S can be directed to the side trimmer 8 in a state where the displacement in the plate width direction is small. Further, since the steel strip S is suctioned at a position closer to the side trimmer 8 than in the case of the first and second embodiments, the displacement of the tail end side portion of the steel strip S in the side trimmer 8 in the sheet width direction is further reduced. Can be smaller.

Further, since the suction table 12 is installed directly below the welding machine 5, the tail end of the steel strip S is removed from the pay-off reel 1 until it is clamped by the welding machine 5, so that the suction table 12 is closed. Will be sucked. Thereby, the effect of reducing the displacement of the steel strip S in the plate width direction immediately below the welding machine 5 is high, so that the welding with the tip of the following material is effectively prevented from being twisted.

Further, the branch pipe 24a is formed in accordance with the width of the steel strip S.
If suction is not performed from the suction pipe 24A disposed outside the width end of the plate, the load on the suction device K is reduced, which is economical.

FIG. 10 is a schematic configuration diagram showing a fourth embodiment of the present invention. In this embodiment, the suction table 12 is formed so as to be movable in the plate width direction, and the movement of the suction table 12 is controlled in the same manner as in the second embodiment. It has the same configuration as.

FIG. 11 is a plan view of the suction table 12 in this embodiment, and FIG. 12 is a sectional view taken along line EE of FIG. As shown in these figures, the adjacent branch pipes 24a of the lower suction pipe 24B in which the branch pipes 24a are arranged on the center side in the plate width direction are rod-shaped at three points at the longitudinal center and both ends. They are connected by a connecting member 26. Also, from the branch pipe 24a of each suction pipe 24B toward both ends in the plate width direction, the rod members 26a, 26b
And the upper suction pipe 24 is attached to each bar 26a, 26b.
A branch pipe 24a is fixed. Further, the tip of the bar 26b extends to the outside of the guide table 21 so that the same side member 2 as in FIG.
8 and a cylinder 29 for moving the side member 28 in the plate width direction is fixed to the outside of the side member 28 in the plate width direction.

The cylinder 29 is driven by a cylinder driving device 29a, as in the second embodiment, and the amount of movement of the cylinder 29 is determined by a position detector 92 provided between the side guide 6 and the pinch roll 7. based on the position detection value I _2, it is adapted to be calculated by the movement amount calculator 10d of the control unit 10D. And this control device 10D
As a result, similar to the third embodiment, the control to move the tail end side portion of the steel strip S toward the side of the side trimmer 8 while attracting the tail end to the suction table 12 side, and the same manner as the second embodiment, the side guide 6 and the pinch Feedback control is performed to move the suction table 12 in the plate width direction such that the amount of deviation of the center position of the steel strip S in the plate width direction from the set position with respect to the roll 7 is within a predetermined range.

Therefore, in this embodiment, in addition to the same effects as in the third embodiment, the displacement of the steel strip S in the width direction immediately before the side trimmer 8 becomes the set range by the movement control of the suction table 12. As a result, the displacement of the tail end side portion of the steel strip S in the side trimmer 8 in the sheet width direction can be further reduced.

FIGS. 13 to 16 are time charts showing the effects of the above embodiments in comparison with the conventional example. FIG. 13 (a) shows the conventional example and FIG. 13 (b) shows the example of each embodiment. That is, in the example of the embodiment, while the sheet width direction position deviation suppression control for each embodiment and the current detection value A becomes the set value A ₀ or less is performed at time T, this is not done in the prior art Only the differences
All other cases compare the case where the same steel strip is transported under the same conditions. Prior to time T, the control is performed such that the displacement (the meandering amount) of the steel strip in the sheet width direction is “0”.

FIG. 13 shows the case of the first embodiment, and FIG.
4 shows the case of the second embodiment, FIG. 15 shows the case of the third embodiment, and FIG. 16 shows the case of the fourth embodiment. From these figures, it can be seen that the plate width direction displacement suppression control according to each embodiment is effective.

In each of the above embodiments, the continuous treatment equipment having the side trimmer 8 as the treatment equipment has been described, but the present invention is naturally applicable to equipment having other treatment equipment. In each of the above embodiments,
Although the case where the tail end of the preceding material and the front end of the succeeding material are connected by the welding machine 5 has been described, the present invention is naturally applied even when such connection is not made.

The number of the branch pipes 24a arranged in parallel in the plate width direction of the suction pipe 24 and the interval between the branch pipes 24a are appropriately selected according to the plate width and the plate thickness. Further, in each of the above embodiments, a suction table for sucking air below the metal band is used as the suction means, but if the metal band is made of a material that can be attracted to the magnet, an electromagnet is uniformly arranged on the table surface. A suction table that has been used may be used. However, it is preferable to use a suction table as in each of the above embodiments, since it can be applied to any type of metal band such as a stainless steel plate or a metal band other than steel.

The arrangement of the suction means such as the suction table 12 may be determined between the payoff reel 1 and the pinch roll 3 incorporated into the threading table 2 or between the welding machine 5 and the side guide as in the above-described embodiments. The distance between the side trimmer (processing equipment) 8 and the pay-off reel 1 may be any value. However, the closer to the processing equipment, the higher the effect of reducing the displacement within the processing equipment. The arrangement close to the processing equipment is preferred.

[0051]

As described above, according to the continuous processing equipment for metal strips according to claims 1 to 4, the force at which the tail end of the steel strip is supported by the payoff reel becomes weaker or the tail end of the steel strip comes off the payoff reel. In this case, the suction means is operated, and tension is applied to the tail end portion of the metal strip located upstream of the processing equipment. It can be directed to processing equipment. This allows
In particular, processing in a processing facility such as an edge trimming by a side trimmer is appropriately performed.

In particular, according to the equipment of the second aspect, the table for receiving the metal band of the suction means is also used as the existing passing plate table, so that the cost of the suction means can be reduced.
According to the equipment of claim 3, tension is applied to the tail end portion of the metal strip upstream of the processing equipment until immediately before the processing equipment, so that the steel strip tail end part in the processing equipment is applied. The effect of reducing the displacement in the plate width direction is increased.

According to the fourth aspect of the present invention, the position of the suction means in the plate width direction is controlled by the moving means.
The effect of reducing the displacement in the sheet width direction of the steel strip tail end side portion in the processing equipment is higher than that of the equipment according to claims 1 to 3.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing a part of a continuous steel strip processing facility corresponding to a first embodiment of the present invention.

FIG. 2 is a plan view showing the threading table of FIG. 1;

3 is a diagram showing the inside of the threading table of FIG. 1 and a state of attachment to a pinch roll, and the inside of the threading table corresponds to a cross-sectional view taken along line AA of FIG. 2;

FIG. 4 is a schematic configuration diagram illustrating a steel strip continuous processing facility corresponding to a second embodiment of the present invention.

FIG. 5 is a plan view showing the threading table of FIG. 4;

6 is a view showing the inside of the threading table of FIG. 4 and a state of attachment to a pinch roll, and the inside of the threading table corresponds to a cross-sectional view taken along line BB of FIG. 5;

FIG. 7 is a schematic configuration diagram showing a steel strip continuous processing facility corresponding to a third embodiment of the present invention.

FIG. 8 is a plan view showing the threading table of FIG. 7;

9 is a view showing the inside of the threading table of FIG. 7 and corresponds to a cross-sectional view taken along the line CC of FIG. 8;

FIG. 10 is a schematic configuration diagram showing a steel strip continuous processing facility corresponding to a third embodiment of the present invention.

FIG. 11 is a plan view showing the threading table of FIG. 10;

12 is a diagram showing the inside of the threading table of FIG. 10 and corresponds to a sectional view taken along line EE of FIG. 11;

FIGS. 13A and 13B are time charts showing the effect of the first embodiment in comparison with the conventional example, wherein FIG. 13A is the conventional example and FIG. 13B is the first embodiment.

FIGS. 14A and 14B are time charts showing the effect of the second embodiment in comparison with the conventional example, where FIG. 14A is the conventional example and FIG. 14B is the second embodiment.

FIGS. 15A and 15B are time charts showing the effects of the third embodiment in comparison with the conventional example, where FIG. 15A is a conventional example and FIG. 15B is a time chart of the third embodiment.

FIGS. 16A and 16B are time charts showing the effect of the fourth embodiment in comparison with the conventional example, in which FIG. 16A is the conventional example and FIG. 16B is the fourth embodiment.

FIG. 17 is a schematic diagram showing a conventional example of a continuous steel strip processing facility.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Payoff reel (rewinding machine) 2 Threading table (threading table) 3 Pinch roll 4 Leveler 5 Welding machine 6 Side guide 7 Pinch roll 8 Side trimmer (Processing equipment) 10 Control device 10A Control device 10B Control device 10D Control device 10b Comparator 10d Movement amount calculator 11a Current detector 12 Suction table (suction means) 20 Threading table (passing table) 23 Suction port (suction means) 24 Suction pipe (suction means) 24A Suction pipe (suction means) 24B Suction pipe (suction means) 26 Cylinder 26a Cylinder drive device 29 Cylinder (movement means) 29a Cylinder drive device (movement means) 92 Position detector H Suction hose (suction means) K Suction machine (suction means) S Steel strip (metal strip) )

Claims (4)

[Claims] 1. A continuous processing equipment for a metal strip, wherein a metal strip wound in a coil shape is continuously passed through a processing equipment while being rewound by a rewinding machine, wherein a metal is provided between the unwinding machine and the processing equipment. A suction means for adsorbing the metal strip, wherein the suction means is activated when the supporting force of the tail end of the metal strip by the rewinding machine becomes a predetermined value or less. Facility. 2. The continuous processing equipment for metal strips according to claim 1, wherein said suction means is incorporated in a passing plate table provided on an exit side of a rewinding machine. 3. The continuous treatment equipment for metal strips according to claim 1, wherein said adsorption means is provided near an entrance side of the treatment equipment. 4. A moving means for moving the adsorbing means in a metal width direction of the metal strip, wherein the moving means is provided in accordance with a position of the metal strip in the width direction between the rewinding machine and the processing equipment. The metal strip continuous treatment equipment according to any one of claims 1 to 3, wherein the adsorption means is moved.