JPH05337548A - Method and device for inserting interleaving paper - Google Patents

Abstract

PURPOSE:To securely and easily execute cutting, and inserting of an interleaving paper end without stopping the line in a carousel type coiling device on the outlet side of a strip continuous treatment line. CONSTITUTION:An interleaving paper inserting device 10 provide with a paper unwinder 11, an interleaving paper advancing direction changing device 12 and a paper cutter 13 are provided adjacent to a carousel type coiling device 8, and the end of the interleaving paper is inserted from the inlet side of strip coiling reels 2a, 2b. This arrangement allows the cutting, exchanging, and end winding of the paper without stopping the strip treatment line.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the prevention of scratches that occur when a strip is wound on the outlet side of a line for continuously processing strips of metal or plastic, for example, a line of a completely continuous tandem cold rolling mill. The present invention relates to a slip-sheet inserting method and device capable of continuously performing a slip-sheet inserting operation without stopping the line.

[0002]

2. Description of the Related Art Conventionally, when a strip of which surface quality and surface gloss are important, such as a cold rolled stainless steel plate, is wound on the exit side of the processing line, a slip sheet is inserted between the strip layers. Is being done. Here, the purpose of inserting the slip sheet between the strip layers is listed below. (1) When the strip is wound, the strip is prevented from rubbing and rubbing the surface to generate a flaw. (2) When the wound coil is transported to the next process or a coil storage place, the coil is prevented from being loosened and the strips being rubbed against each other to cause a flaw. (3) When the coil is rewound and passed through the plate in the next step, the strip is prevented from rubbing and rubbing the surface to generate a flaw. (4) When the processing line is, for example, a rolling mill, if the wiping of the rolling oil is insufficient, the strip may be laterally offset by the remaining rolling oil during winding.
Excessive rolling oil is absorbed by a slip sheet to prevent lateral slippage. (5) In particular, in the case of rolling a stainless steel plate, for example, a high-capacity tandem rolling mill is used to perform high-speed rolling to a medium thickness, and then a small-diameter rolling mill is used to roll a low-viscosity rolling oil. There is a process of using and finishing rolling to product thickness. During the tandem rolling, when oil pits are generated on the plate surface and high-viscosity rolling oil remains in the pits, the oil enclosed in the pits prevents the pits from collapsing during the next rolling with a small diameter roll. However, the surface quality of the final product may be adversely affected. Therefore, a slip sheet is inserted on the tandem mill outlet side, and the high-viscosity rolling oil remaining in this oil pit is absorbed and removed by the slip sheet.

As a conventional example for supplying the interleaf paper to the strip winding device for the above-mentioned purpose, for example, FIG.
0 is known, and the improvement thereof is disclosed in JP-A-1-133611 and JP-A-3-161.
118, Japanese Patent Laid-Open No. 3-161119, etc. FIG. 10 is a schematic view of the equipment on the outlet side of the metal strip processing line. The metal strip m that has been subjected to treatments such as rolling, annealing and pickling passes through the deflector roll 1 and the take-up reel 2 Is wound into a coil 3. At that time, a slip sheet p is inserted between the already wound metal strip and the metal strip wound on the outside thereof. That is, the slip sheet p rewound from the slip sheet coil 4 by the slip sheet unwinder 5 as a slip sheet inserting device is inserted between the layers of the coil 3 of the metal strip m and wound up together with the metal strip m.

When the coil 3 of the metal strip m wound up together with the slip sheet p reaches a predetermined size, the line is temporarily stopped. Then, the shear strip 6 cuts the metal strip m, and the slip sheet p is cut by a cutter knife or the like. Then, the coil 3 on which the slip sheet p and the metal strip m are wound and weighted is taken out from the winding device by the coil car 7. After that, the low speed operation of the line is restarted, and the leading end of the trailing strip m is wound around the newly set take-up reel 2 and at the same time, the leading end of the slip sheet p is also wound.

On the other hand, JP-A-1-133611
Is the interleaf coil 4 and the metal strip coil 3 of FIG.
With the proposal to prevent vertical wrinkles from being transferred to the metal strip m and spoiling the surface quality between the interleaf paper p and the interleaf paper p from the interleaf paper coil 4 to the metal strip coil 3.
The contactless travel distance of the slip sheet p is shortened as much as possible by using a plurality of guide rolls on the travel path.

Further, in Japanese Patent Laid-Open No. 3-161118, a manpower is used to guide the front end of the slip sheet p to the insertion position by passing through a plurality of guide rolls provided in the traveling path of the slip sheet p as described above. This is a proposal that was made without using it. 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 suck the end portion of the slip sheet, and the guide roll is moved to a position right above the slip sheet insertion position. Then, this time, the guide roll is pressurized to blow out air from the ventilation hole, and the leading end of the interleaf paper is lowered to the insertion position while the interleaving paper is fed, and the air is rolled up. After that, another guide roll is moved from the retracted position to the operating position to automate the insertion of the slip sheet.

Further, Japanese Patent Laid-Open No. 3-161119 discloses in FIG.
After cutting the strip m with the shear 6, when the coil end passes through the coil uppermost part, it is separated from the outer circumference of the coil and is swung by the centrifugal force and falls from top to bottom all at once, so that the slip sheet p is cut. This is a proposal that focuses on the fact that it is not possible to additionally wind a slip sheet around the outer circumference of the coil several times, and between the slip sheet coil 4 and the strip winding reel 2, a position variable deflector roll for adjusting slip sheet tension. Are arranged to prevent the slip sheet from being cut due to the fall of the coil end, and thus, it is possible to additionally wind the slip sheet.

[0008]

In the above-mentioned conventional example, when the coil of the metal strip wound together with the interleaving paper reaches a predetermined size, the strip processing line must be stopped once, and each time. In addition, there is a problem that the line operation rate and the product yield are reduced because an off gauge (out of plate thickness tolerance) occurs due to the stop of the rolling mill.

On the other hand, in recent years, the strip processing line has been continuously operated for the purpose of improving the productivity and the yield. For example, in the case of a metal strip, rolling of a cold rolled stainless steel sheet by a tandem rolling mill is aimed. Has been done. Above all, in the case of a completely continuous tandem cold rolling mill,
Since the rolling operation is continuously performed without stopping the rolling mill, off gauge does not occur due to the stopping of the rolling mill, and the productivity and the yield can be dramatically improved. However, even in the completely continuous tandem rolling mill, in order to perform the slip sheet inserting work, the rolling mill must be temporarily stopped as described above, which causes an off gauge, which causes a decrease in the operating rate and the product yield as described above. There was a problem of coming.

In the completely continuous tandem rolling mill, a carousel type winding device 8 as shown in FIG. 11 is often used as a metal strip winding device. In this device, the winding m of the strip m can be continuously continued by automatically replacing the wound coil 3 with a new winding reel 2. That is, the carousel winding device 8 has a disk shape, and two strip winding reels 2a and 2b are arranged symmetrically with respect to the rotation axis thereof. When the winding of the coil on one reel 2b is completed, the strip m sent from the rolling mill is cut by the running shear 9 provided on the delivery side of the rolling mill, and the disk of the winding device is indicated by the arrow mark. The reel is revolved in the direction A and replaced with the other reel. However, at the time of its revolution, the strip m moves along a wide range of loci as shown by the dotted line in FIG. When inserting a slip sheet in such a carousel winding device, if the guide device for the slip sheet is installed within the range of the strip trajectory during the revolution, the guide device for the slip sheet interferes with the strip. There is no choice but to install it at a position far away from the reel 2. Therefore, when inserting the front end of the interleaf sheet, wrinkles, folds, and meandering of the interleaf sheet occur due to the influence of the air flow, and it is very difficult to insert the front end of the interleaf sheet.

The present invention has been made in view of the above conventional problems, and in a carousel-type winding device on the delivery side of a strip continuous processing line, cutting of a slip sheet and leading end without stopping the line. An object of the present invention is to provide a slip-sheet inserting method and device that can be inserted reliably and easily.

[0012]

Means for Solving the Problems The inventors of the present invention, on the outlet side of a strip continuous processing line, wind a strip by a carousel type winding device and insert a slip sheet between layers of a wound strip. As a result of intensive research on means that can insert the leading edge of the paper in a stable and reliable manner, and prevent interference between the trajectory drawn by the strip and the interleaf paper guide device during the revolution of the winding device, Bring the slip-sheet guide device closer to the strip take-up reel and either retract the slip-sheet guide device while the take-up device is revolving, or insert the tip of the slip-sheet guide from the entry side of the strip take-up reel. Therefore, they have found that the leading edge of the interleaf sheet can be stably inserted, and have completed the present invention.

That is, according to the present invention, between the layers of the strip wound on the strip take-up reel of the carousel type take-up device installed on the outlet side of the strip continuous processing line,
The present invention relates to a method and a device for inserting a slip sheet, and an invention is a slip sheet inserting method characterized in that the front end of the slip sheet is inserted from the entry side of the take-up reel.

Another aspect of the invention is a slip-sheet inserting method characterized in that the front end of the slip-sheet is inserted laterally from the entry side of the take-up reel. In another invention, when inserting the front end of the slip sheet, the slip sheet advancing direction changing device is brought close to the strip winding reel to wind the slip sheet, and when the winding device revolves, the slip sheet is rotated. A slip-sheet inserting method characterized in that the paper advancing direction changing device is retracted from the strip winding reel.

Another aspect of the present invention is to provide a slip sheet unwinder installed adjacent to the carousel type winding device, a slip sheet advancing direction changing device and a slip sheet cutter installed on the entrance side of the strip winding reel. A slip-sheet inserting device characterized by being provided. The slip-sheet advancing direction changing device may include a gas injection nozzle.

Further, the slip-sheet advancing direction changing device may have a retracting mechanism.

[0017]

Function: A slip sheet coil is attached to the slip sheet unwinder installed adjacent to the carousel winding device to rewind the slip sheet.
The unwound slip sheet advances downward, and the slip sheet advancing direction changing device installed on the entrance side of the winding device changes the advancing direction in the lateral direction and is continuously supplied to the carousel type winding device. In this way, if the slip sheet is fed laterally to the entrance side of the winding device, even if the slip sheet advancing direction changing device, which is a slip sheet guide device, is installed separately from the carousel type winding device, Wrinkles, creases, and creases on the interleaving paper due to the effect of air flow when the tip is inserted
The meandering is prevented, and the slip sheet can be inserted stably, reliably and easily without stopping the line.

Further, if the slip sheet advancing direction changing device is brought close to the strip winding reel at the time of inserting the front end of the slip sheet,
It can be inserted more reliably and easily. In this case, when the carousel winding device revolves to replace the take-up reel, the interleaf sheet advancing direction changing device is retracted from the reel to prevent interference with the interleaf sheet. When the metal strip is divided, the interleaf sheet is cut as follows, and then the above-mentioned interleaf sheet is inserted. That is, when the division point of the metal strip reaches the running shear provided on the rolling line exit side, the slip sheet cutter is automatically driven to cut the slip sheet. On the other hand, when the dividing point of the metal strip passes through the running shear, the running shear is also automatically driven to cut the metal strip. In this case, it is not necessary to match the cutting timings of the slip sheet and the metal strip, and some deviation is allowed. By cutting the slip sheet and the metal strip by such a method, it is possible to wind the metal strip and the slip sheet in the metal strip winding device with the lengths of the metal strip and the slip sheet aligned within a certain range. The metal strip taken up on the metal strip take-up reel together with the interleaving paper is extracted from the metal strip take-up reel by a coil car or the like.

Immediately after being cut, the trailing metal strip tip is wound onto the reserve metal strip take-up reel of the carousel winder. At the same time, the insertion of the leading edge of the slip sheet is also performed. Then, the winding device revolves around and the next winding process begins. In the above series of operations, it is not necessary to stop the line, and it is possible to perform the operation continuously.

Next, the present invention will be described in more detail with reference to examples.

[0021]

FIG. 1 is a diagram schematically showing an embodiment of a slip-sheet winding device according to the present invention. This is a case where a completely continuous tandem rolling mill is used as a rolling device of a strip processing line to produce a metal strip m of cold rolled stainless steel. As a metal strip winding device, a carousel-type winding device 8 (hereinafter, simply referred to as winding device 8) is installed on the exit side of a completely continuous tandem rolling mill. A slip sheet insertion device 10 is installed adjacent to the winding device 8. The interleaving paper inserting device 10 includes a interleaving paper unwinder 11 installed near the winding device 8 and an upper side of the winding paper unwinding device 11 below the interleaving paper unwinder 11; A slip sheet deflector 12 as a slip sheet advancing direction changing device installed on the entry side of the reel 2 and a slip sheet cutter 13 arranged on the exit side of the slip sheet deflector 12 are provided.

The slip-sheet unwinder 11 is driven to rotate in both forward and reverse directions by a drive device (not shown). When the slip-sheet coil 4 is rewound to insert the front end of the slip-sheet, it rotates clockwise in the figure. Send out the interleaving paper. On the other hand, after the insertion operation of the leading edge of the interleaf sheet is completed and the process shifts to the steady process of winding the interleaf sheet, a predetermined tension is applied to the interleaf sheet p that is pulled out by applying torque in the counterclockwise direction in the figure.

FIG. 2 shows an example of the slip-sheet deflector 12. This is because the deflector roll 122 attached to the lower end of the fixed casing 121 and the fixed casing 121
A pinch roll 125 that is attached to the tip of a swing arm 124 that is attached by a rotating shaft 123 and is driven so as to be able to come into contact with and separate from the deflector roll 122; and a drive cylinder device 126 that swings the swing arm 124. And the interleaf sheet p sent out directly from the interleaf sheet unwinder 11 to the deflector roll 122 and the pinch roll 12
It has a function of sandwiching it with 6 and capturing it, and changing the interleaf sheet traveling direction to the lateral direction as shown in the drawing.

FIG. 3 shows another example of the slip-sheet deflector 12. This is a paper sheet deflector 1 shown in FIG.
2 instead of the pinch roll 125, the swing arm 124 and the drive cylinder device 126.
8, the gas ejected from the gas ejection nozzle 129 of the gas ejection header 128 is blown onto the interleaving paper p sent directly below from the interleaving paper unwinder 11, and the flow direction of the interleaving paper is shown in the drawing. It has a function to change it in the horizontal direction.

The interleaf sheet cutter 13 is configured to be rotationally driven by a drive device (not shown). The interleaf sheet deflector 12 is rotationally driven in consideration of the operation timing of the running shear 9 of the rolling mill. It has a function of automatically cutting the slip sheet p on the exit side of the deflector roll 122. The insertion of the slip sheet p into the winding device 8 by the slip sheet insertion device 10 configured as described above is performed as follows.

In FIG. 1, the strip m rolled by the completely continuous tandem rolling mill is changed in its traveling direction by the deflector roll 1 on the delivery side of the rolling mill, and wound on one winding reel 2b of the winding device 8. It's being done. At the same time, the slip sheet p supplied from the slip sheet inserting device 10 is being inserted between the layers of the coil 3 of the strip m which is being wound on the take-up reel 2b and being wound together with the strip m. The other take-up reel 2a of the take-up device 8
Is in a standby position as a reserve reel, is in a state in which the belt wrapper 15 is wound around the reel, and is rotationally driven in the winding direction.

When the diameter of the coil 3 being wound on the take-up reel 2b reaches a predetermined value, the cutting work of the strip m and the slip sheet p is automatically performed as shown in FIG. .. That is, when the division point of the strip m reaches a certain range before and after the running shear 9, the slip sheet cutter 13 is rotationally driven to cut the slip sheet p. On the other hand, when the dividing point of the strip m passes the running shear 10, the running shear 9 is rotationally driven to cut the strip m. After that, the coil 3 in which the slip sheet p and the strip m are wound on the take-up reel 2b in an overlapping winding,
The coil car 7 removes the take-up reel 2b.

After cutting the strip m and the slip sheet p, as shown in FIG. 5, the winding of the strip m around the take-up reel 2a and the insertion of the tip of the slip sheet p are completely continuous tandem. It is carried out simultaneously without stopping the rolling mill. That is, while the take-up reel 2a is rotated counterclockwise with the belt wrapper 15 wound around the reel, the peripheral speed of the interleaf coil 4 is equal to the line speed of the strip m or the line of the strip m. The slip sheet unwinder 11 is rotationally driven in the clockwise direction so that the slip sheet p is sent out so that the speed has a constant advanced rate with respect to the speed. The leading edge of the interleaf sheet p is laterally sent out toward the entrance side of the take-up reel 2a by the interleaf sheet deflector 12, and reaches the take-up reel 2a together with the leading edge of the strip m to be wound up. When the front end of the slip sheet p is wound around the take-up reel 2a, tension is applied to the slip sheet p by the slip sheet unwinder 11 of the slip sheet insertion device 10. In addition, the interleaf paper deflector 1
When the pinch roll system shown in FIG. 2 is used as 2, the other pinch roll 125 is retracted by operating the drive cylinder device 126 to open the pinch roll and enter the steady operation state. When the interleaf sheet deflector 12 of the gas ejection header type shown in FIG. 3 is used, the ejection of gas is stopped and the steady operation state is entered.

On the other hand, as shown in FIG. 6, the winding device 8 opens the belt wrapper 15 and retracts it downward, and revolves 180 degrees counterclockwise. As a result, the winding reel 2a in the winding operation state moves to the steady winding position. The other take-up reel 2b moves to the standby position. The belt wrapper 15 is wound around the take-up reel 2b, and the leading edge winding preparation state of the strip m and the interleaf sheet p to be cut next is entered (see FIG. 1).

7 to 8 show another embodiment. In this embodiment, the interleaf sheet deflector 12 of the interleaf sheet inserting device 10 is retracted upward by a retracting mechanism (not shown) when the interleaf sheet deflector 12 is in a steady operation state, and is shown in FIG. As shown in FIG. 9, the slip-sheet deflector 12 is arranged so as not to interfere with the slip-sheet deflector 12 and the strip m while the carousel-type winding device 8 is revolving as shown in FIG. Is different from the first embodiment in that it is re-evacuated.

According to this embodiment, it is possible to prevent interference between the slip sheet p and the strip m when the winding device 8 revolves, and to bring the slip sheet deflector 12 extremely close to the take-up reel 2a when the leading edge of the slip sheet is inserted. Therefore, there is an advantage that the interference prevention of the slip sheet deflector 12 and the stable, reliable and easy insertion operation of the front end of the slip sheet can be made compatible.

In each of the above embodiments, the case where the coil 3 is wound up has been described, but the present invention is not limited to this and can be applied to the case where the coil 3 is wound under. Further, in each of the above-described embodiments, the example in which the interleaf paper cutter 13 is a rotary type is shown, but the same effect can be obtained even in the case of a reciprocating type.

[0033]

As described above, according to the present invention,
A slip-sheet inserter equipped with a slip-sheet unwinder, a slip-sheet advancing direction changing device, and a slip-sheet cutter is installed adjacent to the carousel winding device, and the front end of the slip-sheet is inserted from the entry side of the strip take-up reel. As a result, the interleaving paper can be cut / replaced / wrapped at the leading end without stopping the strip processing line, and the operation rate of the line is improved.

Further, off gauge is not generated when inserting the slip sheet in the completely continuous tandem rolling mill, and the yield of the products is improved. Furthermore, a slip-sheet advancing direction changing device that guides the slip-sheet can be placed close to the take-up reel, and can easily be inserted without causing wrinkles, folds, or meanders in the slip-sheet when inserting the front end of the slip-sheet in the carousel type winding device. Further, by using the slip sheet advancing direction changing device provided with the air nozzle and the guide roll, it is possible to insert the slip sheet into the upper winding device which has been impossible in the past.

[Brief description of drawings]

FIG. 1 is a diagram schematically showing an embodiment of a slip sheet insertion device of the present invention.

FIG. 2 is a diagram schematically showing an embodiment of a slip-sheet advancing direction changing device of the present invention.

FIG. 3 is a view schematically showing another embodiment of the slip-sheet advancing direction changing device of the present invention.

FIG. 4 is a diagram illustrating a slip sheet cutting process by the slip sheet insertion device of FIG. 1;

5A and 5B are views for explaining a slip-sheet leading edge inserting step by the slip-sheet inserting device of FIG. 1;

FIG. 6 is a diagram illustrating a slip-sheet inserting process performed by the slip-sheet inserting device shown in FIG. 1;

FIG. 7 is a diagram schematically showing another embodiment of the interleaf paper insertion device of the present invention.

FIG. 8 is a diagram illustrating a slip-sheet leading end inserting step by the slip-sheet inserting device of FIG. 7;

9 is a diagram illustrating a slip-sheet inserting process performed by the slip-sheet inserting device shown in FIG. 7;

FIG. 10 is a schematic diagram illustrating a conventional general slip-sheet insertion method.

FIG. 11 is a schematic diagram illustrating a slip-sheet insertion state in a conventional carousel winding device.

[Explanation of symbols]

 8 Carousel type winding device 10 Interleaf paper insertion device 11 Interleaf paper unwinder 12 Interleaf paper deflector 13 Interleaf paper cutter 129 Gas injection nozzle

Claims (6)

[Claims] 1. A method of inserting a slip sheet between layers of a strip wound on a strip take-up reel of a carousel type winding device installed on the outlet side of a strip continuous processing line, wherein the tip of the slip sheet is the above-mentioned. A slip-sheet inserting method characterized in that the take-up reel is inserted from the entrance side. 2. A method of inserting a slip sheet between layers of a strip wound on a strip take-up reel of a carousel type winding device installed on the outlet side of a strip continuous processing line, wherein a tip of the slip sheet is wound. A method for inserting a slip sheet, which is characterized in that the take-up reel is inserted laterally from the entry side. 3. A method of inserting a slip sheet supplied from a slip sheet coil between layers of a strip wound on a strip take-up reel of a carousel type take-up device installed on the outlet side of a strip continuous processing line. Then, when inserting the front end of the slip sheet, the slip sheet advancing direction changing device is brought close to the strip winding reel to wind the slip sheet, and when the winding device revolves, the slip sheet advancing direction changing device is used. A slip-sheet inserting method characterized by retracting from a strip take-up reel. 4. A device for inserting a slip sheet supplied from a slip sheet coil between layers of strips wound on a strip take-up reel of a carousel winding device installed on the outlet side of a strip continuous processing line. And a slip-sheet unwinder installed adjacent to the carousel winding device, a slip-sheet advancing direction changing device and a slip-sheet cutter installed on the entrance side of the strip winding reel. Interleaving paper insertion device. 5. The slip-sheet inserting device according to claim 4, wherein the slip-sheet advancing direction changing device has a gas jet nozzle. 6. The slip sheet inserting device according to claim 4, wherein the slip sheet advancing direction changing device has a retracting mechanism.