JP2996844B2 - Inserting device for interleaving paper in continuous metal strip processing line - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rubbing process which is performed when a stainless steel strip is cold-rolled and then wound into a coil in a line for continuously processing a metal strip, for example, a completely continuous tandem cold rolling line. the insertion operation between for preventing flaws paper relates during paper interpolation NyuSo location was to be carried out continuously without stopping the line.

[0002]

2. Description of the Related Art Conventionally, a strip of cold-rolled stainless steel sheet or the like, for which surface quality and surface gloss are regarded as important, is manufactured by reverse rolling using a Sendzimir mill equipped with a small-diameter multi-stage roll and repeating a number of passes. Have been. However, the reverse rolling method using the Sendzimir mill has a problem that the work roll has a small diameter, so the biting capability at the tip of the strip is low and the sheet passing operation is unstable, and the productivity is low due to the repetition of the reciprocating pass and the cost is high. there were. To solve these problems, Nisshin Steel Technical Report 25
No. (November 1971), Sendzimir tandem mills as described in p1 to p9 were developed. this is,
While arranging multiple Sendzimir mills in tandem,
By arranging a welding machine on the entry side of the rolling mill to enable endless rolling, the problems of biting of small-diameter rolls and the problem of low productivity have been addressed, and the effect of improving productivity to a certain extent has been achieved. However, the roll overheating and the frequency of roll replacement caused by the roll diameter being as small as about 50 to 120 mm were restricted, so that productivity improvement beyond a certain level could not be expected.

However, there is a strong demand for further improvement in productivity, and in response, for example, Japanese Patent Publication No. 3-479.
28, a rolling method using a tandem mill in which a plurality of large-diameter roll mills for ordinary steel are arranged as shown in JP-A-4-52005-52009 and the like.

Here, the advantage of the rolling by the large-diameter roll will be described as follows. (1) Since the heat radiation area of the surface of the roll is increased, the roll is efficiently cooled, and the roll and the plate are hardly seized due to overheating of the roll. As a result, higher-speed rolling becomes possible and productivity can be improved. (2) Since the circumference of the roll increases in proportion to the roll diameter, the life of the roll is improved, and the frequency of replacing the roll is reduced. As a result, downtime for roll replacement is reduced, and productivity can be improved. (3) When the rolling mill is of a batch type, the larger the roll diameter is, the more excellent the biting ability of the leading end of the strip is, and the more stable the threading operation can be performed. (4) As stated in Tokuhei 3-47928,
The large-diameter roll is less likely to cover irregularities on the material surface during cold rolling, and a product with a better surface can be obtained.

As described above, in the rolling method using a tandem mill for ordinary steel, since a large-diameter work roll having a diameter of about 250 to 650 mm is used, a large reduction in strength can be obtained.
The cooling capacity is large, the roll life is five or six times longer than the conventional one, and the biting performance is good. As a result, a high rolling speed can be secured. Above all, in the case of a fully continuous tandem cold rolling mill, rolling work is performed continuously without stopping the rolling mill, so that there is no off-gauge caused by stopping the rolling mill, and productivity and yield increase. Can bring significant improvement.

[0006] Representative examples of fully continuous tandem cold rolling line will be described with reference to FIG 20. The strip m unwound from the coil by the payoff reel 1 is continuously supplied by welding the tail end of the preceding strip and the tip of the following strip by the welding machine 2. Then strip m
Is cold-rolled to a predetermined thickness by a tandem rolling mill 6 through a first bridging roll 3, a looper 4 and a second bridging roll 5. Thereafter, the rolled strip m is wound into a coil shape by a winding device via a deflector roll 8.

A carousel-type winding device 9 is often used as a winding device for a metal strip. In this apparatus, the winding of the strip m can be continuously continued by automatically replacing the wound coil 11 with a new winding reel. That is, the carousel-type winding device 9 has a disk shape, and two strip winding reels 10a and 10b are arranged symmetrically with respect to the rotation axis. When the winding of the coil onto one of the reels 10b is completed, the strip m sent from the rolling mill is cut by the running shear 7 provided on the exit side of the rolling mill, and the disk of the winding device is moved by the arrow. It revolves in the direction of the symbol A and is replaced with the other reel. Then, the next strip m is taken up by the take-up reel 10a with the belt wrapper 12 wound therearound. At this time, the coil 11 is moved by the coil car 13 to the reel 10.
b.

The looper 4 is a strip storage device for feeding the strip m to the tandem rolling mill 6 without interruption even during the welding operation by the welding machine. Is applied.

As described above, a stainless steel strip is cold-rolled using a tandem cold rolling mill for ordinary steel, in particular, a fully continuous tandem cold rolling mill equipped with a welding machine and a looper on the inlet side. If this is the case, productivity and yield are greatly improved. However, production of cold rolled stainless steel strips and the like that require a beautiful surface because the coil strips that are wound at a high speed during the winding of the strips rub against each other and scratches are formed on the surface, so that good gloss cannot be obtained. There was a big problem that was difficult.

In addition to the above, there are the following problems. (1) When the wound coil is transported to the next step, a coil storage place, or the like, the coil is loosened, and the strips are rubbed with each other to generate a flaw.

(2) In the next step, when the coil is rewound and passed, the strip is rubbed, and scratches are generated on the surface. (3) If the wiping of the rolling oil used during cold rolling is insufficient, the strip may laterally shift due to the remaining rolling oil during winding.

Therefore, in order to solve such a problem,
When winding the strip on the output side of the tandem cold rolling mill,
It is conceivable to insert a slip sheet between the strip layers. As a conventional example for supplying a slip sheet to a strip winding device for the above-described purpose, for example, the one shown in FIG. 21 is known. This schematically shows the equipment on the exit side of a metal strip processing line. A strip m that has been subjected to processing such as rolling, annealing, and pickling is wound on a strip winding reel 10 via a deflector roll 8. And become the coil 11. At this time, there is a slip sheet p between the already wound strip and the strip wound around the strip.
Is inserted. That is, the slip-sheet p unwound from the slip-sheet coil 15 by the slip-sheet unwinder 14 is inserted between the layers of the coil 11 of the strip and wound together with the strip m. When the coil 11 reaches a predetermined size, a line is formed. It stops once, the strip m is cut by the shear 7 ', and the slip sheet p is also cut by a cutter knife or the like. After the coil 11 of the strip wound together with the slip sheet is pulled out from the take-up reel 10 by the coil car 13, the line is operated again at a low speed, and the work of winding the leading end of the slip sheet is performed while winding the leading end of the succeeding strip. In this case, the leading end of the slip sheet p is set to the strip m and the strip take-up reel 1.
Until it is inserted between 0, the drive of the slip-sheet unwinder 14 is speed-controlled to rotate the slip-sheet coil 15 so that the speed of the strip m and the slip-sheet feeding speed are the same. When the leading end of the slip sheet p is inserted and starts to be wound up together with the strip m, the drive of the slip sheet unwinder 14 is switched to tension control to apply tension to the slip sheet p.

In the above-described conventional apparatus, when the slip sheet p is wound on the strip take-up reel 10, the torque applied to the slip sheet unwinder 14 is controlled to control the slip sheet unwinder 14 and the strip take-up reel 10. Although tension is applied to the slip sheet p in the middle, no tension is applied to the cut and hanging slip sheet p because there is nothing to restrain the leading end of the slip sheet p.

Therefore, when the slip sheet p is sent out to the strip take-up reel 10, the leading end of the slip sheet p fluctuates due to the movement of the surrounding air and the like, so that the slip sheet p does not descend to a predetermined lower position. Therefore, wrinkles were easily generated in the width direction of the slip sheet p.

When the leading end of the slip sheet p is wound on the strip take-up reel 10, the slip sheet p may be wrinkled, loosened, broken, or the like, or may be wound in a folded state. I often did.

[0016] Therefore, in practice, the slip sheet p is manually manipulated to prevent such a problem from occurring,
It was necessary to correct the trouble that occurred. The necessity of such manual work not only poses a problem in terms of safety but also hinders productivity improvement. To solve the above problems, Japanese Patent Application Laid-Open Nos. 1-133611, 3-161118, and 3
Various proposals such as -52712 have been made.

[0017] JP 1-133611 prevents longitudinal wrinkles impaired more, the surface quality is transferred to the strip m is between paper p between the slip sheet coil 15 and coil 11 of the strip of FIG. 21 In the proposal, a plurality of guide rolls are used as a slip-sheet guide device on the path of the slip-sheet p from the slip-sheet coil 15 to the coil 11 to reduce the non-contact running distance of the slip-sheet p as much as possible to reduce wrinkling. I'm preventing.

Japanese Unexamined Patent Publication No. Hei 3-161118 discloses that a plurality of guide rolls provided on the running path of the slip sheet p are passed through the guide sheet p to guide the leading end of the slip sheet p to the insertion position without using manual operation. This is a proposal to be made. That is, a large number of ventilation holes are provided on the roll surface of the guide roll close to the slip-sheet coil, the guide roll is initially set to a negative pressure to suction the end of the slip-sheet, and the guide roll is moved to just above the slip-sheet insertion point. Then, the guide roll is pressurized to blow air out of the air holes, and the leading end thereof is lowered to the insertion point while feeding the slip sheet, and wound up. Thereafter, the slip sheet insertion is automated by moving another guide roll from the retracted position to the operating position.

Japanese Unexamined Patent Application Publication No. 3-52712 discloses that, as shown in FIG. 21, a slip-sheet that hangs down by its own weight and is inserted is a bottom-winding type in which a strip is wound from the lower side of a take-up reel. On the other hand, the upper winding type, which is wound up through the upper side of the reel, improves the point that the slip sheet cannot be inserted, and the belt wrapper wound around the outer periphery of the lower half of the winding reel and the winding reel are different. Insert the interleaving paper hanging down from above, rotate the outer periphery of the lower half of the reel with a belt wrapper, and then wind it between the strips so that either the upper winding type or the lower winding type can be inserted. ing.

[0020]

In the above conventional example, a slip sheet guide device is provided to prevent the occurrence of wrinkles, and a suction / blowing hole is introduced into the guide device to automate slip sheet insertion. Alternatively, a slip-sheet can be inserted in a bottom-wound manner using a belt wrapper. However, in any case, when the coil of the metal strip wound together with the slip sheet has a predetermined size, the strip processing line must be temporarily stopped, and each time the rolling mill is stopped, the off-gauge (out of thickness tolerance) is exceeded. ), There is a common problem that the line availability and the product yield are reduced.

In the above-mentioned conventional example, when the remaining length of the slip-sheet coil 15 is exhausted, or when the width of the slip-sheet p is changed in accordance with the width change of the strip m, the slip-sheet coil 15 Is taken out from the slip-sheet unwinder 14,
It has been necessary to mount the new slip-sheet coil 15 on the slip-sheet unwinder 14 and guide the leading end of the slip-sheet p to the take-up reel 10 of the winding device. And while doing this work,
Since the interleaf p cannot be supplied, the line must be stopped similarly, which causes a problem that the efficiency is reduced.

In particular, in the case of a completely continuous tandem rolling mill, if the rolling mill is temporarily stopped every time a slip-sheet inserting operation is performed each time a strip take-up reel is replaced or a slip-sheet coil is replaced, the above-described method is required. Similarly, there is a problem of lowering the operation rate and the product yield, and of course, there is a very serious problem that the original effect of a completely continuous system cannot be enjoyed.

In the case where a carousel-type winding device is employed as the winding device, if a guide device for the slip sheet is installed within the range of the revolving strip trajectory, the slip sheet interferes with the strip. Has to be installed at a position far away from the take-up reel. for that reason,
When inserting the leading end of the slip-sheet, wrinkling, folding and meandering of the slip-sheet occurred due to the influence of the airflow, and it was extremely difficult to insert the leading end of the slip-sheet.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and has been developed by using a carousel-type winding device at the output side of a continuous processing line for metal strips, particularly, a completely continuous tandem cold rolling line. Upon inserting a slip-sheet in strip taken, by successive insertion of slip-sheet without line stop is provided between the paper interpolation NyuSo location that can be reliably and easily, cold-rolled stainless steel sheet or the like having a beautiful surface An object of the present invention is to establish a continuous processing system for metal strips capable of high-speed rolling.

[0025]

The present invention SUMMARY OF] is a metal strip to be wound on the take-up reel of Karozeru type winding apparatus installed on the outlet side of the metal strip continuous processing line having a welder and a looper to inlet side to insert a slip-sheet in the interlayer
A metal strip comprising: a slip-sheet continuous supply device installed adjacent to the carousel-type winding device; a slip-sheet traveling direction changing device and a slip-sheet shear installed on the entrance side of the take-up reel. there in sheet insertion device during continuous processing line
The interleaf continuous feeding device includes a two-axis or more interleaf unwinder device installed adjacent to the winding device, and interleaf discharged from one discharging side interleaf unwinder to the other standby side interleaf. It is characterized by comprising a slip sheet connecting device for connecting to the unwinder slip sheet, and a slip sheet cutter for cutting the payout side slip sheet when the slip sheet is connected .

It is further preferable that a pinch roll which functions when cutting the slip sheet and restrains the slip sheet is disposed on the upstream side of the slip sheet traveling direction changing device. Also, the slip-sheet continuous supply apparatus, a fixing means for fixing the distal end of the payout side among the paper upon cleavage at the slip-sheet cutter, payout of surplus Note sent out come after fixing the front end by said securing means And holding means for holding the interleaf sheet in a convexly upward slack.

A slip-sheet looper can be arranged between the slip-sheet continuous feeding device and the slip-sheet traveling direction changing device.

[0028]

The slip sheet is discharged from the slip sheet coil attached to the slip sheet unwinder. The dispensed slip-sheet advances downward, is changed in the lateral direction by a slip-sheet-moving-direction changing device installed on the entrance side of the winding device, and is continuously supplied to a carousel-type winding device to be continuously fed to a strip layer. Are inserted in and are involved together.

As described above, when the slip sheet is supplied to the entrance side of the winding device from the lateral direction, even if the slip sheet traveling direction changing device as the slip sheet guide device is installed apart from the carousel type winding device. In addition, wrinkles, breaks, and meandering of the slip sheet due to the influence of the air flow when the leading end of the slip sheet is inserted are prevented. Therefore, the coil of the metal strip becomes a predetermined size,
Even when the strip is cut by the running shear, the leading end of the slip sheet can be stably and reliably inserted into the next coil without stopping the line.

Further, according to the cutting of the strip,
When the slip sheet is cut by the slip sheet shear, the pinch roll functions and the leading end of the succeeding slip sheet is restrained by the pinch roll.
Then, by applying a torque to the slip-sheet unwinder in the direction opposite to the slip-sheet supply direction, tension is applied to the slip sheet between the slip-sheet unwinder and the pinch roll in the slip-sheet line. Therefore, if the leading end of the succeeding slip sheet is wound on the strip take-up reel in this state, the slip sheet may be wrinkled, loosened, broken, or the like, or may be wound in a folded state. Is prevented.

After the leading end of the succeeding slip sheet has been wound on the strip take-up reel, the restraint by the pinch roll is released, and the slip sheet is wound in a steady operation. On the other hand, when the slip sheet inserted in the slip sheet unwinder is paid out and the remaining amount is exhausted, or when the width of the slip sheet is changed in accordance with the change in the width of the strip, the following operation is performed. A paper switching operation is performed. That is, an adhesive is pasted on the surface of the standby slip-sheet coil in advance, and is disposed near the slip-sheet connecting device. The slip sheet currently being paid out is supplied between the standby slip coil and the slip sheet connecting device.
Then, the standby slip-sheet coil is rotated based on the remaining amount information of the slip-sheet coil or the tracking information of the division point and the width change point of the strip, and when the adhesive portion passes through the slip-sheet connecting device, the pay-out side. The interleaving paper is pressed and connected to the interleaving paper on the standby side, and the interleaving paper on the payout side is cut by the interleaving paper cutter. The cutting of the slip sheet may be performed before the connection of the slip sheet.

Thus, even during the operation of dividing the metal strip and the operation of switching the slip sheet, the supply of the slip sheet can be continuously performed without interruption. It is not necessary to stop the strip processing line due to the insertion of the leading end, so that cold rolling can be continuously performed, and it is possible to completely prevent scratches due to winding of the surface of the metal strip.

[0033] Also, when switching between paper coil between sheet continuous supply apparatus, but to cut the paper between the payout side coil after connecting to the standby side coil between paper connecting device paper during payout side coil, If the leading end of the cut slip sheet is fixed by the fixing means and air is blown up from below the slip sheet by the holding means, for a while for a while due to the rotation due to the inertia of the coil, the excess is continuously sent out from the discharge side coil. The paper can be sagged upward and held, thereby preventing troubles such as slip-sheet entanglement.

Further, if a slip-sheet looper is disposed between the slip-sheet continuous feeding device and the slip-sheet traveling direction changing device, the slip-sheet can be supplied without interruption even when the slip-sheet connecting operation requires time.

[0035]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 11 show an embodiment of the present invention. FIG. 1 shows an apparatus for producing a metal strip m of cold rolled stainless steel or the like using a completely continuous tandem cold rolling mill. This is schematically shown.

Adjacent to the take-up device 9, a continuous-sheet-feeding device 20 is provided. The interleaving sheet continuous supply device 20 includes an interleaving paper unwinder device 21 and an interleaving paper connecting device 28.
And a slip-sheet cutter 29, and a movable device 27 which can run adjacent to the continuous-sheet-feeder 20 is provided.

The slip-sheet unwinder 21 has a rotating shaft 21.
The two-axis interleaving paper unwinder is provided at symmetrical positions with respect to a. In FIG. 1, the left slip-sheet unwinder 22a is on the payout side, and the right slip-sheet unwinder 22b is on the standby side. The interleaving sheet p of the payout side interleaf unwinder 22a is guided by the guide rolls 23a and 23b, passes over the interleaf interleaf coil 24b mounted on the standby side interleaf unwinder 22b, is sent out downward, and is taken up. The traveling direction is changed in the lateral direction by a slip sheet deflector 40 as a slip sheet traveling direction changing device disposed close to the entrance side of the device 9 and the winding device 9.
Supplied to The pinch roll 30 is provided on the input side of the slip sheet deflector 40, and the rotary drive type slip sheet shear 50 is provided on the output side. The pinch roll 30 functions at the same time as the slip sheet p is cut by the rotary drive slip sheet shear 50, restrains the leading end of the succeeding slip sheet p, and the leading end of the slip sheet p is wound around the strip winding device 9. After that, the restraint is released.

The slip-sheet connecting device 28 is disposed above the standby-side slip-sheet unwinder 22b. The slip-sheet p discharged from the pay-out-side slip-sheet unwinder 22a is pasted with an adhesive material 25 such as a double-sided tape or a glue. The connection is made by pressing against the attached interleaving paper between the standby side interleaving paper unwinder 22b. Therefore, the slip-sheet connecting device 28 moves up and down so as to be able to separate from and contact the swing arm 28a, the tension roll 28b attached to the tip of the swing arm 28a and holding the discharged slip-sheet, and the spare slip-sheet coil 24b. And a slip-sheet connecting roll 28c.

The slip-sheet cutter 29 is also disposed above the standby-side slip-sheet unwinder 22b, and is of a reciprocating drive type that cuts the pay-out-side slip when connecting the slip-sheet. The moving device 27 includes an elevating device 27a and a traveling wheel 27b provided below the elevating device 27a. The traveling device 27 travels between the slip sheet coil storage area and the interleaf unwinder device 21 by the traveling wheel 27b. And the slip-sheet coil 24 mounted on the upper part
c is moved up and down by the elevating device 27a to form the slip-sheet unwinder 2.
2a or 22b, and the slip-sheet coil mounted on the slip-sheet unwinder 22a or 22b is removed.

FIG. 2 shows an example of the slip sheet deflector 40. This includes a deflector roll 40b attached to the lower end of the fixed casing 40a, and a fixed casing 40a
A pinch roll 40e attached to the tip of a swing arm 40d attached to the swing shaft 40c and driven to be detachable from the deflector roll 40b; and a drive cylinder device 40f for swinging the swing arm 40d. And catches the slip sheet p sent directly below from the slip sheet unwinder 21 between the deflector roll 40b and the pinch roll 40e, and changes the slip sheet traveling direction to the horizontal direction as shown in the figure. It has a function to run.

[0041] Next, a method of supplying the slip sheet p to the winding device 9 by-sheet continuous supply apparatus having the above configuration will be described with reference to FIGS. 1 and 3 through 11. In FIG. 1, a strip m rolled by a completely continuous tandem cold rolling mill is changed in a traveling direction by a deflector roll 8 on the exit side of the rolling mill.
b is being wound up. At the same time, the interleaf continuous feeding device 2
The slip sheet p supplied from 0 is inserted between the layers of the coil 11 of the strip m being wound on the take-up reel 10b and is being wound together with the strip m.
The other take-up reel 10a of the take-up device 9 is at a standby position as a spare reel, has a belt wrapper 12 wound around the reel, and is driven to rotate in the take-up direction.

Eventually, when the diameter of the coil 11 being wound on the take-up reel 10b reaches a predetermined size,
As shown in FIG. 3 , the cutting operation of the strip m and the slip sheet p is automatically performed. That is, when the dividing point of the strip m reaches a certain range before and after the inter-shear shear 7, the inter-sheet shear 50 is rotated to cut the inter-sheet p.
At the same time, the leading end of the succeeding slip sheet p is
Is actuated to restrain. On the other hand, when the division point of the strip m passes through the running shear 7, the running shear 7 is rotated to cut the strip m. After that, the slip sheet p
The coil 11 in which the coil 11 and the strip m are wound on the take-up reel 10b in an overlapping manner is extracted from the take-up reel 10b by the coil car 13.

After the strip m and the slip-sheet p are cut, as shown in FIG. 4 , the winding of the strip m onto the take-up take-up reel 10a and the insertion of the leading end of the slip-sheet p are performed.
It is performed simultaneously without stopping the complete continuous tandem cold rolling mill. That is, while rotating the take-up reel 10a counterclockwise while the belt wrapper 12 is wound around the reel, the peripheral speed of the slip-sheet coil 24a is equal to the line speed of the strip m, or the line speed of the strip m The slip-sheet unwinder 22a is driven to rotate clockwise so as to feed the slip-sheet p so that the speed has a fixed advance rate with respect to the speed. The leading end of the slip sheet p is laterally sent out by the slip sheet deflector 40 toward the entry side of the take-up reel 10a, and reaches the take-up reel 10a together with the leading end of the strip m to be wound. When the leading end of the slip sheet p is wound on the take-up reel 10a, the pinch roll 30 is opened, and a counterclockwise torque is applied to the slip sheet p by the slip sheet unwinder device 11 of the slip sheet continuous supply device 20 to apply a predetermined amount to the slip sheet p. Of tension. Also, the slip-sheet deflector 40
When the pinch roll type shown in FIG. 2 is used, the pinch roll 4 is operated by operating the drive cylinder device 40f.
By retracting 0e, the pinch roll is released to enter a steady operation state .

On the other hand, as shown in FIG. 5 , the winding device 9 opens the belt wrapper 12 to retreat downward, and revolves 180 degrees counterclockwise. Thereby, the take-up reel 10a in the take-up operation state moves to the steady take-up position. The other take-up reel 10b moves to the standby position. The belt wrapper 12 is wound around the take-up reel 10b, and preparation for winding the leading end of the strip m and the slip sheet p to be cut next is started (FIG. 1).
reference).

During the winding of the strip m and the interleaf p, the remaining length of the interleaf coil 24a on the payout side in the interleaf continuous feeder 20 is lost or the interleaf p is adjusted in accordance with the width change of the strip m. when performing width changes, FIGS. 6 to 1
In the procedure shown in FIG. 1, the slip sheet is connected to the copy slip coil 24b.

The rotation of the standby-side sheet unwinder 22b in the rewinding direction is accelerated until the peripheral speed of the shaft rotation of the copy slip-sheet coil 24b becomes equal to the pay-out speed of the pay-out slip sheet coil 24a (FIG. 6 ).

When the adhesive 25 previously attached to the surface of the slip-sheet coil 24b passes immediately below the slip-sheet connecting roll 28c of the slip-sheet connecting device 28, the slip-sheet connecting roll 28c is held down. It is pressed against the surface of the slip-sheet coil 24b. As a result, the back surface of the slip sheet p during the paying-out travel is pressed against the adhesive material 25, and the slip sheet p is connected to the copy slip sheet coil 24b (FIG. 7 ).

Immediately thereafter, the slip sheet cutter 29 advances to cut the slip sheet p discharged from the discharge slip coil 24a. Thereafter, a new slip sheet p paid out from the copy slip coil 24b is supplied to the winding device 9 (FIG.
8 ).

Thereafter, the interleaving paper unwinder 22a, which was on the paying side, rotates in the direction opposite to that during the paying, and winds up the cut interleaving paper p. The slip-sheet connecting roll 28c and the slip-sheet cutter 29 of the slip-sheet connecting device 28 retreat (FIG.
9 ).

The slip-sheet coil 24a having no remaining slip-sheet length
Is removed from the slip-sheet unwinder 22a, and a new slip-sheet coil 24c is mounted as a copy for the next cycle. The slip sheet connecting device 28 is retracted when the swing arm 28a rotates upward (FIG. 10 ). afterwards,
The slip-sheet unwinder 21 is rotated around a rotation axis 21a as shown in FIG.
3 and revolve in the counterclockwise direction, and the slip-sheet coil 24b and the newly-installed slip-sheet coil 2
The position of 4c is replaced, and the state returns to the state of FIG. 1 (FIG. 11 ).

FIGS. 12 to 14 show another embodiment. In FIG. 8 described above, after cutting the slip sheet p, the payout side slip sheet unwinder 22a is quickly stopped and then reversed, but the payout side slip sheet unwinder 22a is continuously discharged during deceleration so as to stop. A trouble such as the leading end of the surplus slip sheet p being wound around the slip sheet coil 24b switched to the payout side may occur. So Figure 1
As shown in FIG. 2 , adjacent to the upstream side of the slip sheet cutter 29,
A suction device 60 is provided as fixing means. The suction device 60 of this embodiment has a suction box having a width of the slip sheet p formed in a vacuum box, and is connected to a vacuum exhaust device (not shown). Then, the slip sheet p sent from the slip sheet coil 24a is cut by the slip sheet cutter 29, and at the same time, the leading end of the cut slip sheet p is sucked and fixed.

Further, even after the leading end is fixed by the suction device 60 below the belt-shaped paper at an intermediate position between the tension roll 28b and the guide roll 23a on the upstream side of the suction device 60, the sheet is still fed from the slip sheet coil 24a. An air nozzle 61 is provided as a means for holding the surplus interleaving paper p which is projected upward and sags upward. The air nozzle 61 has a function of blowing air sent from a compressed air source (not shown) below the slip sheet p, and holding the excess slip sheet p in a state of being blown up in a loop by the airflow. .

In the above configuration, simultaneously with cutting the slip sheet,
The suction device 60 is operated to suck the cutting end of the slip sheet p sent from the slip sheet coil 24a, thereby fixing the slip sheet p.

Subsequently, the forward rotation of the slip sheet unwinder 22a, which has been on the payout side, is stopped. However, since it does not stop instantaneously, surplus interleaving paper p is sent out. If this is left as it is, there is a possibility that the surplus interleaving paper p hangs down between the guide roll 23a and the suction device 60 and is pulled and pulled toward the paying strip-shaped paper coil 24b. Therefore, the air nozzle 6
By blowing air upward from FIG. 1 , the surplus interleaving paper p is blown up and held in a convex manner in a loop (FIG. 1 ).
3 ). Thereafter, the air nozzle 61 is turned off, and the payout-side interleaf unwinder 22a is rotated in the reverse direction to rewind the surplus interleaf p (FIG. 14 ). After that, please refer to Fig. 10 or Fig.
The same operation as in step 11 is performed.

FIG. 15 shows another embodiment in which a slip-sheet looper 70 is further provided between the slip-sheet continuous feeding device 20 and the pinch roll 30. If it takes time to connect the slip-sheet coil,
This is provided to supply the slip sheet p without interruption.

FIGS. 16 to 19 show another embodiment.
In this embodiment, the interleaf continuous feeding device 20 is of a type in which the interleaf unwinder device 21 does not revolve, and the pay-out interleaf unwinder 22a and the standby interleaf unwinder 22b are fixed and do not exchange positions. The slip-sheet connecting device 28
Slip-sheet connection roll 2 driven forward and backward by air cylinder 28d
8c, a pinch roll 26a, 2 serving as a slip sheet holding device for holding and guiding the slip sheet cutter 29 driven forward and backward by the air cylinder 29a and the discharged slip sheet p.
6b, it is integrally movable horizontally.
In the meantime, the paper connection method is as follows.

When the remaining length of the payout side interleaf unwinder 22a is exhausted, the rotation of the pinch rolls 26a and 26b is stopped, and at the same time the interleaf cutter 29 is operated to cut the interleaf p (FIG. 16 ). Subsequently, the pinch rolls 26a and 26b, which hold the tail end of the divided slip sheet p, are attached to the standby slip sheet coil 2 attached to the standby-side slip sheet unwinder 22b.
4b (FIG. 17 ). Then, when the adhesive material 25 of the copy slip coil 24b passes directly below the slip-sheet connecting roll 28c, the slip-sheet p is pressed and connected (FIG. 1 ).
8 ). Thus, the slip sheet p discharged from the standby-side slip sheet unwinder 22b is supplied to the winding device 9, and the slip sheet supply is continued. Next, the slip-sheet connecting device 28, the slip-sheet cutter 29, and the pinch rolls 26a, 26b are laterally moved in the opposite directions to return to the original positions. At this time, the lower pinch roll 26a has already paid out the slip-sheet. The sheet coil 24b is returned to the original position while bypassing the outer periphery of the sheet coil 24b during the operation.
Further, a new slip-sheet coil 24c is mounted on the pay-out-side slip-sheet unwinder 22a (FIG. 19 ).

[0058] Incidentally, in this embodiment it is necessary to use a slip sheet looper 70, as shown supra Figure 15. In each of the above embodiments, the case where the coil 11 is wound upward is described. However, the present invention is not limited to this, and can be applied to a case where the coil 11 is wound downward.

Further, in the above embodiment, the example in which the slip-sheet shear 50 is of a rotary type is shown, but the same effect can be obtained even in the case of a reciprocating type.

[0060]

As described above, according to the present invention,
A slip-sheet continuous feeding device, a slip-sheet traveling direction changing device, and a slip-sheet inserting device including a slip-sheet cutter are installed adjacent to the carousel-type winding device, and the leading end of the slip sheet is inserted from the entry side of the strip take-up reel. By doing so, it is possible to cut, replace, and wind the leading end of the slip sheet without stopping the strip processing line, and an effect that the operating rate of the line is improved is obtained.

Further, according to the present invention, since the coil is wound while inserting a slip sheet between the layers of the strip cold-rolled by the tandem rolling mill for ordinary steel, high-speed rolling by a large-diameter roll can be performed. Moreover, it is possible to prevent the wound coil from being scratched, and as a result, it is possible to obtain an effect that the productivity of a metal strip such as a cold-rolled stainless steel plate, which requires a beautiful surface, is greatly improved.

[Brief description of the drawings]

FIG. 1 is a schematic view of an embodiment of a metal strip continuous processing line and a slip sheet inserting apparatus according to the present invention.

FIG. 2 is a view schematically showing an embodiment of a slip sheet traveling direction changing device according to the present invention.

FIG. 3 is a diagram illustrating a slip sheet cutting step by the slip sheet insertion device of the present invention.

FIG. 4 is a diagram illustrating a slip-sheet leading-edge insertion step by the slip-sheet inserting device of the present invention.

FIG. 5 is a diagram illustrating a slip sheet inserting step by the slip sheet inserting device of the present invention.

FIG. 6 is a diagram for explaining the start of a slip sheet connection step by the slip sheet continuous supply device of the present invention.

FIG. 7 is a diagram for explaining the operation of the apparatus shown in FIG. 6 during a slip sheet connection.

FIG. 8 is a view for explaining a cutting step after the slip sheet connection in the apparatus of FIG. 6 ;

9 is a diagram illustrating an operation of the apparatus of FIG. 6 immediately after cutting the slip sheet.

FIG. 10 is a diagram for explaining an exchange operation of a used slip-sheet coil and a spare slip-sheet coil in the apparatus of FIG. 6 ;

11 is a diagram illustrating a steady state after completion of a slip sheet connecting step by the apparatus of FIG. 6 ;

FIG. 12 is a diagram illustrating a slip-sheet connecting operation in another embodiment of the slip-sheet continuous feeding device according to the present invention.

13 is a diagram for explaining the operation of the fixing means and the holding means of the slip sheet in the continuous slip sheet feeding apparatus of FIG. 12 ;

14 is a diagram illustrating a rewinding operation after the switching connection step in the continuous sheet feeding device in FIG. 12 ;

FIG. 15 is a schematic diagram of an embodiment in which a slip-sheet looper is provided between a continuous-sheet-feed continuous feeding device and a strip winding device.

FIG. 16 is a diagram illustrating a slip sheet cutting operation in still another example of the slip sheet continuous supply device of the present invention.

17 is a diagram illustrating a connection preparation step in the continuous sheet feeding device in FIG. 16 ;

FIG. 18 is a diagram illustrating an operation at the time of connection in the continuous sheet feeding device in FIG. 16 ;

FIG. 19 is a diagram illustrating an operation after connection is completed in the continuous sheet feeding device in FIG. 16 ;

FIG. 20 is a schematic diagram showing a typical example of a conventional complete continuous tandem cold rolling line.

FIG. 21 is a diagram schematically showing a conventional interleaf sheet continuous supply device.

[Explanation of symbols]

 Reference Signs List 2 welding machine 4 looper 6 tandem rolling mill 9 (strip) winding device 10a take-up reel 10b take-up reel 14 inter-sheet unwinder 20 inter-sheet continuous supply device 21 inter-sheet unwinder device 24a inter-sheet coil (discharge side) 24b inter-sheet Coil (copy) 24c slip-sheet coil 28 slip-sheet connecting device 29 slip-sheet cutter 30 pinch roll 40 slip-sheet traveling direction changing device (slip-sheet deflector) 40h gas ejection nozzle 50 slip-sheet shear 60 fixing means (suction device) 61 holding means (Air nozzle) 70 Interleaf looper

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tomoharu Kanamaru 1 Kawasaki-cho, Chuo-ku, Chiba-shi, Chiba Kawasaki Steel Corporation Chiba Works (56) References JP-A-5-337548 (JP, A) JP-A Heisei 1-1133611 (JP, A) JP-A-3-161118 (JP, A) JP-A-3-52712 (JP, A) JP-A-4-111924 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B21C 47/26 B21C 47/02

Claims (4)

(57) [Claims] 1. A so as to insert the interleaf between layers of the welder and a looper metal strip to be wound on the take-up reel of the installed Karozeru type winding device on the outlet side of the metal strip continuous processing line having to the entry side a slip-sheet continuous supply apparatus installed adjacent to the Karozeru type winding device, metal strip continuously formed by a slip sheet traveling direction changing apparatus and slip-sheets shear installed in the entry side of the winding reel An interleaf insertion device for a processing line , wherein the interleaf continuous supply device is discharged from a two-axis or more interleaf unwinder device installed adjacent to the winding device and one of the unloader side unwinders. A slip sheet connecting device for connecting the slip sheet to the slip sheet on the other standby side slip sheet unwinder;
Sheet insertion device between the features and to Rukin genus strip continuous processing line that includes a slip-sheet cutter for cutting the payout side among the paper upon during paper connection. 2. The continuous metal strip processing line according to claim 1 , wherein a pinch roll that functions when cutting the slip sheet and restrains the slip sheet is disposed upstream of the slip sheet traveling direction changing device. Interleaf insertion device. 3. The interleaf sheet continuous supply device according to claim 1,
A fixing means for fixing the leading end of the payout side slip sheet at the time of cutting with the slip sheet cutter, and an excess payout side slip sheet still fed out after fixing the leading end by the fixing means is sagged upward. And a holding means for holding the metal strip. 4. A slip-sheet looper is disposed between a slip-sheet continuous feeding device and a slip-sheet traveling direction changing device.
2. The interleaf paper inserting device according to claim 1 , wherein