JP4377080B2 - Winding roll end processing apparatus and winding end processing method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a winding end processing apparatus and a winding end processing method for a winding roll for winding a long material such as paper web, paperboard, and plastic film.
[0002]
[Prior art]
The winder that winds up the long material stops its operation when the winding roll reaches a predetermined diameter, takes out the winding roll, replaces it with a new winding core, and starts the next winding. Thus, in the winder, it is necessary to repeat winding (running) and core replacement (stopping). Therefore, in order to improve productivity, it is important to reduce the winder stop time.
[0003]
For example, JP-A-6-179550, JP-A-7-257788, and JP-A-11-208948 disclose a winding in which a long material such as a paper web wound around a winding roll is cut, and the cut end is taped. An edge processing method is disclosed. In these conventional techniques, after the winder is stopped, the long material is cut using a cutter before the take-up roll is taken out. Then, the cut winding end is taped manually or by a tape applicator to complete the winding roll.
[0004]
[Problems to be solved by the invention]
However, in this method, it takes a certain time from the winder stop to the take-up roll unloading, and it is difficult to shorten the winder stop time. On the other hand, for example, JP-A-8-225204 discloses a method of cutting a web with a cutting blade during a winder operation. According to this method, the web cutting can be performed while the winder is in operation, but there is no mention of taping. Therefore, the time required for taping after the winder is stopped is still required.
[0005]
Thus, the conventional system cannot completely overcome the problem of requiring a certain winder stop time. In addition to this, since the cutter is driven to cut after the winder is stopped, there is generally a lack of safety.
[0006]
An object of the present invention is to provide a highly safe winding-end processing apparatus and a winding-end processing method for a winding roll that can eliminate the drawbacks of the prior art and can shorten the winder stop time.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention allows a long material conveyed on a rotating drum roll to enter a nip formed between the drum roll and the take-up roll and at the same time separates from the drum roll. In a winding end processing apparatus for a take-up roll to be taken, a tape attaching means for attaching a double-sided tape to a long material moving on a drum roll, a cutter passed over at least the entire width of the long material, Cutter holding means that keeps the blade substantially perpendicular to the conveying direction of the long material, and lifting means that contacts the long material on the drum roll and rotates around the drum roll, or lifts and separates from the long material including.
[0008]
According to the present invention, following the double-sided tape affixed to the long material, the cutter that comes into contact with the long material enters the nip, and by this entry, the take-up roll is taped and the long material is cut. That is, the winding end of the winding roll is processed during the winding process.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of a winding edge processing apparatus and a winding edge processing method according to the present invention will be described in detail with reference to the accompanying drawings. In the following embodiments, a paper web is used as the long material, but the present invention is also applicable to other long materials that can be wound by a winder and cut by a cutter. In the drawings, portions not directly related to the present invention are omitted, and the same elements are denoted by the same reference numerals.
[0010]
FIG. 2 is a configuration diagram of a winder to which the first embodiment of the winding edge processing apparatus according to the present invention is applied. The winder 10 includes a slitter 12, and the slitter 12 cuts the paper web W in its running direction. As a result, the paper web W is divided into two paper webs W1 and W2 each having a predetermined width. The divided paper webs W1, W2 are supported by the support rolls 14, 16, and are sent to the winding process. In this embodiment, the slitter 12 divides the paper web W into two webs W1 and W2. However, the slitter 12 may be divided into a larger number. In that case, what is necessary is just to increase the number of winding rolls corresponding to the number of the webs after parting. In addition, since the paper web W is not cut in this case, there is only one winding roll.
[0011]
The winder 10 includes three drum rolls 18, 20, and 22. The paper web W1 is redirected by the roll 22 and further conveyed along the roll 18. Then, it is separated from the roll 18 at the take-up nip N1 formed between the roll 18 and the take-up core 24 and wound around the take-up core 24. On the other hand, the paper web W2 is conveyed along the roll 20 and wound around the winding core 26 in the winding nip N2.
[0012]
FIG. 3 is an enlarged view of the paper cutting device 28 provided in the drum roll 18 of FIG. The winding edge processing apparatus according to the present invention includes the paper cutting device 28 and a winding edge tape sticking device 60 described later. 3A is a front view of the paper cutting device 28, FIG. 3B is a view showing a state in which the cutter holding portion 36 of the paper cutting device 28 is moved upward, and FIG. 3 is a side view of the cutting device 28. FIG. The paper cutting device 28 includes a hydraulic cylinder 30, two arms 32, a cutter holder 36 supported by a piston 34 of the cylinder 30, and a cutter holder 36 provided on each arm 32 from both sides. And a guide 38 for guiding the vertical movement.
[0013]
Since the hydraulic cylinder 30 can move the piston 34 up and down, the cutter holder 36 of the paper cutter 28 can move up and down. FIG. 3B shows a state where the cutter holding unit 36 has moved upward.
[0014]
As shown in FIG. 3C, a bearing housing 44 is attached to the rotating shaft 42 that protrudes outward in the width direction of the drum roll 18. Although FIG. 3 (c) shows only one end of the drum roll 18, the bearing housing 44 exists at both ends of the drum roll 18. Accordingly, the paper cutting device 28 attached to the bearing housing 44 is also attached to both sides of the drum roll 18. The cutter holding portions 36 of the paper cutting devices 28 on both sides hold both ends of the cutter 46 that is passed over the entire width of the cutter roll 18 and pull it to both sides to keep the cutter 46 straight. It has a function. Thereby, the blade 58 of the cutter 46 is always kept substantially perpendicular to the conveying direction of the paper web W1.
[0015]
In FIG. 3 (c), the drum roll 18 and its rotating shaft 42 rotate, but the bearing housing 44 shown by hatching is fixed and does not rotate. Therefore, the paper cutting device 28 on the bearing housing 44 does not normally rotate. However, since the paper cutting device 28 is attached to the housing 44 via the ball bearing 48, the paper cutting device 28 can freely rotate around the drum roll 18 if torque is applied.
[0016]
A configuration for applying the above torque will be described below. The paper cutter 28 can be lowered from the position shown in FIG. 3B and moved to the position shown in FIG. 3A by the hydraulic cylinder 30 constituting the paper cutter 28. Then, the cutter 46 held by the cutter holding unit 36 is also lowered and comes into contact with the long material W1 on the drum roll 18 over the entire width of the drum roll. This means that the cutter 46 indicated by the dotted line in FIG. 3C (corresponding to FIG. 3B) is changed to the cutter 46 indicated by the solid line (corresponding to FIG. 3A). In this way, when the holding unit 36 located above contacts the drum roll 18, when the drum roll 18 is rotating, the holding unit 36 receives torque and is transmitted to the paper cutting device 28.
[0017]
Therefore, the paper cutting device 28 receives the torque of the drum roll 18 by the holding portion 36 coming into contact with the drum roll 18, and rotates as the long material moves. At this time, since the paper cutting device 28 rotates with respect to the bearing housing 44 via the ball bearing 48, the paper cutting device 28 rotates smoothly. However, another type of bearing may be provided between the paper cutting device 28 and the bearing housing 44. Further, although not shown, the paper cutting device 28 includes a stopper at an arbitrary position on the rotation trajectory thereof, whereby the rotation accompanying the drum roll 18 can be performed only within a predetermined range.
[0018]
As shown in FIG. 3 (a), the paper cutting device 28 has a drive system including a hydraulic motor 50 and a chain 52. The chain 52 rotates in a loop along a small rotating gear 54 of the motor 50 and a large rotating gear 56 attached to the rotating shaft of the drum roll 18. However, for convenience of illustration, the chain 52 is illustrated only around the gear 54 and between the gears 54 and 56, and is omitted in other parts.
[0019]
When the motor 50 rotates the gear 54, torque is applied to the gear 56 via the chain 52. The paper cutting device 28 rotates according to the rotation of the drum roll 18 in the state of FIG. 3A in which the cutter 46 is in contact with the drum roll 18, but the cutter 46 is separated from the drum roll 18. In this state, the drum roll 18 is not affected by the rotation. Therefore, while the cutter 46 is away from the drum roll, the paper cutting device is not restrained at all and is free. Therefore, the paper cutting device 28 can be held or rotated by the drive systems 50 and 52.
[0020]
3A, the positions of the hydraulic motor 50 and the chain 52 with respect to the paper cutting device 28 are different from those in the drum roll 18 of FIG. However, this is only different for convenience of illustration. This is because the positional relationship between the rotating paper cutting device 28 and the drive system such as the motor 50 changes.
[0021]
As shown in FIG. 3 (c), the blade of the cutter 46 is kept perpendicular to the conveying direction of the paper web W1 by the paper cutting device 28. On the other hand, as shown in FIG. 3A or 3B, the cutter 46 has a curved cross-sectional shape. Since this is in contact with the drum roll 18, it is adapted to the shape of the drum roll surface. The cutter 46 may be shaken by the air flow on the surface of the drum roll 18 during the winding operation, and thus is held by the electromagnet magnet 40.
[0022]
Refer to FIG. 2 again. The winder 10 further includes a winding end tape attaching device 60. The winding end tape attaching device 60, together with the paper cutting device 28 described above, constitutes a winding end processing device according to the present invention. The winding end tape attaching device 60 is installed on the drum roll 18 between the paper cutting device 28 and the winding core 24. The tape applicator 60 is moved up and down by an air cylinder (not shown) and applies the tape 62 to the paper web W1 on the drum roll 18 when lowered.
[0023]
At this time, the winding end tape attaching device 60 may be lowered to supply the tape, and the tape 62 is attached to the paper web W1 according to the flow during the movement of the paper web. That is, the tape application of the present embodiment is a vertical application method in which the tape 62 is applied substantially in parallel with the transport direction of the paper web W1, and the tape is not applied in the width direction. Therefore, it is not necessary to stop the winder 10 when the tape 62 is applied. Such a vertical sticking method can also be realized by a tape sticking device in the prior art, and for example, the one described in JP-A-11-208948 may be adopted. Further, the tape 62 is a double-sided tape, and as shown in FIG. 4, several tapes are simultaneously attached to the entire width of the paper web W1. Corresponding to this number, a plurality of tape applicators 60 may be provided. The number of tapes is not limited to the number shown in FIG. 4 and may be increased or decreased.
[0024]
The operation of the present embodiment having the above configuration will be described with reference to FIG. FIG. 1 is a diagram for explaining the operation of this embodiment. In FIG. 1, the drive system 50 and 52 of the magnet 40, the end tape attaching device 60, and the paper cutting device 28 are omitted.
[0025]
First, while the paper web W1 is being wound, the drum roll 18 is rotated to convey the paper web W1, but the paper cutting device 28 is stopped at its initial position A. At this time, the cutter holding portion 36 of the paper cutting device 28 is lifted by the hydraulic cylinder 30 and is in the state shown in FIG. 3B (note that the already lowered state is shown in FIG. 1). At this time, the cutter 46 is separated from the drum roll 18, but is held by a magnet 40 (not shown in FIG. 1) so as not to be shaken by the airflow generated on the surface of the drum roll 18.
[0026]
When the winding roll 64 by the paper web W1 wound around the winding core 24 reaches a predetermined winding diameter, the winding speed is gradually reduced, and then the winding end cutting operation of the paper web W1 is performed. First, as shown in FIG. 1, a double-sided tape 62 is vertically attached to the paper web W1 running on the drum roll 18 by the winding end tape attaching device 60. Next, as shown in the paper cutting device 28 at the position A in FIG. 1, the excitation of the electromagnet magnet 40 is cut off by the hydraulic cylinder 30, and the cutter holder 36 is lowered. That is, the state of FIG. 3B is changed to the state of FIG. As a result, like the solid line cutter 46 in FIG. 3 (c), the cutter 46 is landed on a portion immediately after the tape 62 is pasted on the paper web W1. Then, due to the torque of the drum roll 18 transmitted from the cutter holding portion 36, the entire paper cutting device 28 rotates about the drum roll 18 counterclockwise in FIG.
[0027]
First, the portion of the paper web W1 to which the double-sided tape 62 is applied enters the nip N1. The double-sided tape 62 stuck on the surface of the web W1 is wound into the take-up roll 64 by entering the nip, and taps the paper web W1. This is the tape 62 at position C in FIG. Immediately thereafter, the cutter 46 enters the nip N1 while being in contact with the paper web W1, and cuts the paper web W1. As described above, according to the present invention, taping and cutting of the paper web W1 are continuously completed during winding, so that it is not necessary to perform winding end processing after the winder 10 is stopped. Note that only the cutter 46 enters the nip N1, and the paper cutting device 28 itself holds the cutter 46 at both ends of the drum roll 18 as shown in FIG. No interference with 64 or nip N1.
[0028]
After the cutter 46 passes through the nip N1 and cuts the paper web W1, the drum roll 18 stops and the paper cutting device 28 stops at the position B shown in FIG. Here, although the winding process is temporarily suspended, the winding roll 64 can be immediately unloaded in the direction of arrow D by the unloading device 75 because the winding end processing has already been completed.
[0029]
On the other hand, the cutter holding portion 36 of the paper cutting device 28 is raised again by the hydraulic cylinder 30, and the cutter 46 is also raised accordingly, returning to the state shown in FIG. Thereafter, when the gear 54 of the hydraulic motor 50 rotates clockwise or counterclockwise, the paper cutting device 28 is rotated clockwise or counterclockwise via the chain 52 and the gear 56 to return to the initial position A. . In this way, the paper cutting device 28 stands by for the next winding end process.
[0030]
The first embodiment of the present invention has been described above in the winding process on the drum roll 18. The winding process on the winding core 26 on the drum roll 20 is similarly performed by a paper cutting device 68, a magnet 70, and a tape applicator (not shown), and the winding roll is moved in the direction of arrow E by the unloading device 77. Taken out.
[0031]
FIG. 5 is a block diagram of a winder 80 to which the second embodiment of the winding edge processing apparatus according to the present invention is applied. A feature of the winder 80 is that two winding steps are performed on the same drum roll 82. First, the paper web W is divided into two paper webs W3 and W4 by the slitter 79. The winder 80 includes only one drum roll 82, and two winding cores 84 and 86 form nips N3 and N4. The paper web W3 is wound around the core 84 by the nip N3, and the paper web W4 is wound around the core 86. Correspondingly, two paper cutting devices 88 and 90 are installed on the drum roll 82.
[0032]
In the case of the second embodiment, a plurality of winding end tape applicators are installed on the two winding cores 84 and 86, respectively. In FIG. 5, only the tape applying device 92 for the core 84 is shown, and the illustration of the tape applying device for the core 86 is omitted. Further, in the first embodiment (FIG. 2), the winding end tape attaching device 60 is disposed between the paper cutting device 28 and the winding core 24. In the second embodiment, the winding end tape applying device 60 is disposed. The pasting device 92 is arranged in front of the first paper cutting device 88. In the second embodiment, after the end tape applying device 92 vertically attaches the double-sided tape to the paper web W3, the paper cutting device 88 passes the double-sided tape passing thereunder and then lowers the cutter to remove the tape. What is necessary is just to rush into nip N3 after that.
[0033]
In this way, the winding end tape applying device 92 essentially needs to be able to apply the tape to the paper web W3 in front of the winding core 84. Therefore, the winding end tape applying device 92 may be disposed either before or after the paper cutting device 88. I know it ’s good. As in the second embodiment, when the winding end tape attaching device 92 is disposed in front of the paper cutting device 88, the cutter can be brought into contact with a part of the double-sided tape. In the first embodiment, as shown in FIG. 1, since the cutter 46 is brought into contact immediately after the tape 62, a slightly wound end 66 remains after taping. In the second embodiment, as described above, Since the cutter can be brought into contact with a part of the tape, the winding end can be processed without leaving the winding end.
[0034]
The operation of the second embodiment will be described below. Of the paper web W divided in the longitudinal direction by the slitter 79, the first paper web W3 is wound around the first winding core 84, and the second paper web W4 is wound around the second winding core 86. Taken. When winding rolls (not shown) wound around the cores 84 and 86 reach a predetermined roll diameter, the paper webs W3 and W4 each having a predetermined width are both double-sided by a tape applying device 92. Is vertically pasted. Immediately after the tape affixed to the paper webs W3, W4 passes under the first or second paper cutting device 88, 90, the cutter holders 94, 96 of the paper cutting device 88, 90 are lowered and immediately after the tape. Insert the cutter into nips N3 and N4. The cutter may be landed on a part of the tape so as not to leave an excessive winding end.
[0035]
By the above process, the winding end of the winding roll is processed during the winding process. Accordingly, the take-up rolls can be immediately unloaded in the directions of arrows F and G, respectively. The first and second paper cutting devices 88 and 90 also stop after passing through the nips N3 and N4 due to the stop of the drum roll 82, and do not interfere with the other winding process.
[0036]
As described above, in the second embodiment, two paper cutting devices 88 and 90 are provided for one drum roll 82 and winding is performed at two places. However, this number is limited to two. It is not necessarily done, and it may be more than that. That is, the number of paper cutting devices may be increased in correspondence with the number of nips to be wound.
[0037]
【The invention's effect】
As described above, according to the present invention, in the winding process of the long material, the winding end processing of the long material is completed during winding, so that the winding end that has been conventionally performed after interrupting the winding process is performed. The processing time can be omitted, and the winding core can be replaced immediately after the winding is interrupted. Therefore, the time until the next winding process is shortened, and the operating capacity of the winder is significantly improved. In addition, the tape-end tape applicator is installed in front of the paper cutter and the double-sided tape is applied in the vertical direction, so taping can be performed while moving long materials, saving labor, reducing unloading time, and automation. Is achieved. Furthermore, safety is improved by the method of the present invention in which the cutter is driven before the machine stops.
[Brief description of the drawings]
FIG. 1 is a diagram for explaining the operation of a first embodiment according to the present invention.
FIG. 2 is a configuration diagram of a winder to which a first embodiment of a winding edge processing apparatus according to the present invention is applied;
FIG. 3 is an enlarged view of the paper cutting device shown in FIG. 2;
FIG. 4 is a diagram of a double-sided tape affixed to a paper web on the drum roll shown in FIG.
FIG. 5 is a configuration diagram of a winder to which a second embodiment of a winding edge processing apparatus according to the present invention is applied;
[Explanation of symbols]
10, 80 winder
18, 20, 22, 82 Drum roll
24, 26, 84, 86 Winding core
28, 68, 88, 90 Paper cutter
30 Hydraulic cylinder
40, 70 magnet
46 Cutter
48 ball bearing
60, 92 Tape end tape applicator
62 Double-sided tape
64 Winding roll

Claims (6)

In a winding end processing apparatus for a take-up roll in which a long material conveyed on a rotating drum roll enters a nip formed between the drum roll and the take-up roll and winds away from the drum roll at the same time The device is
A tape attaching means for attaching a double-sided tape to a long material moving on the drum roll;
A cutter passed over at least the entire width of the elongated material;
Cutter holding means for maintaining the blade of the cutter substantially perpendicular to the conveying direction of the long material;
Elevating means for bringing the cutter into contact with the long material on the drum roll, rotating it around the drum roll, and separating it from the long material;
As a result, the double-sided tape affixed to the long material enters the nip, the take-up roll taps due to the entry, and the cutter that contacts the long material immediately after the taping enters the nip. rush and, by Ri before Symbol long material to the inrush winding end processor of the winding roll, characterized in that it is disconnected. The apparatus according to claim 1, further comprising driving means for rotating the cutter about the drum roll when the cutter is separated from the long material.
The winding end treatment apparatus for a take-up roll, wherein the cutter separated from the long material after cutting the long material is returned to a position where the cutter contacts the long material. A long material is transported on a rotating drum roll and entered into a nip formed between the drum roll and the take-up roll, and at the same time, separated from the drum roll and taken up on the take-up roll. In the winding end processing method of the winding roll that performs the taping and cutting of the long material, the method includes:
A step of attaching a double-sided tape to the long material moving on the drum roll;
After the double-sided tape affixed by the step, or overlaid on a part of the tape, contacting the long material with a cutter that is passed over at least the entire width of the long material;
Taping the take-up roll by causing the double-sided tape to enter the nip; and
The cutter blade is moved along with the conveyance of the long material while being kept substantially perpendicular to the conveyance direction of the long material, and then the long material is inserted into the nip following the double-sided tape. A winding end processing method for a winding roll, characterized by comprising a cutting step. The method according to claim 3, wherein the drum roll is rotated from at least the step of applying the double-sided tape to the step of cutting the long material.   5. The winding end of a winding roll according to claim 3, wherein in the step of applying the double-sided tape, the double-sided tape is applied substantially parallel to the conveying direction of the long material. Processing method.   6. The method according to claim 3, further comprising the step of separating the cutter from the long material and returning the cutter to a position where the cutter is in contact with the long material. Roll end processing method.

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