JP7439735B2 - Paper machine reel device and paper winding method - Google Patents

Description

The present invention relates to a reel device for winding up paper produced by a paper machine and a method for winding up the paper.

Traditionally, in paper mills, paper (raw material) produced by a paper machine is sent out at a constant speed, and the paper is wound up by a reel device to continuously form material rolls. ing.

A conventional reel device (Patent Document 1) generally includes a reel drum that conveys paper, a spool shaft for winding the paper, and a primary that grips the spool shaft and moves it along the circumferential surface of the reel drum. An arm, a rail on which the reel drum moved by the primary arm is placed, and on this rail, when the paper is wound from the reel drum onto the spool shaft and the paper is fully wound, the spool shaft is moved along the rail. It is equipped with a secondary arm that can be moved by In a reel device, in order to continuously form a roll of material, just before the spool shaft of the first frame becomes fully wound, the empty spool shaft of the next frame is brought into pressure contact with the reel drum, so that the spool shaft is connected to the reel drum. While synchronizing the rotational speed of the reel drum, the paper is cut between the spool shaft of the first frame and the spool shaft of the next frame, which are fully wound, and wound around the next frame, and then the paper is moved to the next frame. Transition. This method of changing the frame of the spool shaft using a primary arm and a secondary arm is also called a primary-secondary transfer method.

Japanese Patent Application Publication No. 9-278238

By the way, in the conventional primary-secondary transfer type reel device, as mentioned above, when changing the spool shaft from the previous frame to the next frame, the empty spool shaft of the next frame is pressed into contact with the circumferential surface of the reel drum. Therefore, it is necessary to synchronize the rotational speed of the spool shaft and reel drum. However, in order to synchronize the rotational speed, the empty spool shaft must be pressed firmly against the reel drum. At this time, if the shaft axis of the spool shaft is bent or distorted even slightly, when the spool shaft is pressed against the reel drum and rotated, the spool shaft will bounce on the reel drum, causing large vibrations. , leading to failure of the spool shaft or the entire equipment. Furthermore, the higher the rotational speed of the reel drum, the greater the vibrations generated during frame change. In particular, if the surface speed of the reel drum is high, the rotational speed at the time of switching will be considerably high, so even a slight shift in the center of gravity will cause large vibrations and cause failures. For this reason, it is conceivable to reduce the rotational speed of the reel drum to suppress vibrations during frame change, but if this is done, the paper production efficiency will decrease and the paper production amount will decrease.

Therefore, the main object of the present invention is to reduce the risk of equipment failure by suppressing the vibrations that occur when changing the frame of the spool shaft without reducing the rotational speed of the reel drum.

As a result of intensive study on means for solving the problems of the prior art described above, the inventor of the present invention has located a driving means for applying rotational force to the spool shaft at the transfer position of the spool shaft from the primary arm to the rail. By doing so, we have found that the rotational speeds of the reel drum and spool shaft can be synchronized without bringing the spool shaft into pressure contact with the reel drum. Based on the above knowledge, the inventors came up with the idea that the problems of the prior art could be solved, and completed the present invention. Specifically, the present invention has the following configurations or steps.

A first aspect of the present invention relates to a reel device for a paper machine. The reel device includes a primary arm, a rail, a reel drum, a shaft drive means, and a secondary arm. The primary arm transports a spool shaft for winding paper to a delivery position. The rail rotatably supports the spool shaft conveyed to the delivery position by the primary arm. The reel drum conveys paper to be wound around the circumferential surface of the spool shaft, which is supported by a rail and located at a delivery position. The shaft driving means rotates the spool shaft at the delivery position so that the rotation of the spool shaft is synchronized with the rotation of the reel drum. The secondary arm moves the spool shaft, which is fully wound with paper, along the rail. Further, the secondary arm presses the spool shaft toward the reel drum while the spool shaft is winding the paper.

As in the above configuration, by rotating the spool shaft at the delivery position by the shaft driving means, it is possible to synchronize the rotational speeds of the reel drum and the spool shaft without having to make strong contact between the spool shaft and the reel drum. can. This makes it possible to suppress vibrations that occur when changing the frame of the spool shaft, thereby reducing the risk of equipment failure. Furthermore, if vibrations can be suppressed, there is no need to reduce the rotational speed of the reel drum, so it is possible to increase the rotational speed of the reel drum and maintain high paper production efficiency.

Preferably, the reel device according to the present invention further includes a guide. The guide regulates the conveyance state of the spool shaft so that the spool shaft does not substantially contact the reel drum during conveyance by the primary arm until the spool shaft reaches the delivery position. The state in which the spool shaft does not "substantially contact" the reel drum refers not only to cases where the spool shaft and reel drum are separated and do not come into direct contact with each other, but also cases where the spool shaft and reel drum are in contact but are not in direct contact with each other. This includes cases where there is light contact to the extent that the rotational force of the drum is not transmitted to the spool shaft. In this way, by providing the guide and inhibiting contact between the spool shaft and the reel drum, vibrations caused by contact between the spool shaft and the reel drum can be substantially eliminated.

In the reel device according to the present invention, the guide may be configured to be able to adjust the distance between the spool shaft and the reel drum at the delivery position. By making it possible to adjust the distance between the spool shaft and reel drum using the guide in this way, it is easy to make fine adjustments such as separating the two if they are too close and vibration is occurring. become.

In the reel device according to the present invention, it is preferable that the shaft driving means is arranged to rotationally drive the spool shaft while the spool shaft is supported by the rail at the delivery position. In this way, by rotating the spool shaft on the rail, it is possible to stably wind the paper.

In the reel device according to the present invention, the shaft driving means is configured to stop applying a driving force to the spool shaft when the winding of the paper around the spool shaft progresses and the winding diameter of the paper reaches a predetermined value or more. Preferably. Note that after the shaft driving means finishes applying the driving force to the spool shaft, it is necessary to apply the driving force from the reel drum to the spool shaft in synchronization with the rotation. As a result, as the paper is wound around the spool shaft, the rotation of the reel drum and the spool shaft can be completely synchronized. At this stage, multiple layers of paper are interposed between the spool shaft and the reel drum, so even if the spool shaft is slightly bent or distorted, almost no vibration will occur due to this. I can say that.

A second aspect of the present invention relates to a paper winding method. The paper winding method according to the present invention includes at least the following steps 1) to 5) in this order.
1) The spool shaft for winding the paper is transported to the delivery position by the primary arm (transport process)
2) The spool shaft transported to the delivery position by the primary arm is supported in a rollable manner by the rail (supporting process)
3) At the delivery position, the spool shaft is rotated so that the rotation of the spool shaft is synchronized with the rotation of the reel drum (rotation drive process)
4) The process of winding the paper conveyed by the reel drum around the circumferential surface of the spool shaft supported by the rail at the delivery position (winding process). During winding, this spool shaft is pressurized against the reel drum side.
5) The process of moving the spool shaft, which is fully wound with paper, along the rail using the secondary arm (moving process)

According to the present invention, it is possible to reduce the risk of equipment failure by suppressing vibrations that occur when changing the frame of the spool shaft without reducing the rotational speed of the reel drum.

FIG. 1 is a side view schematically showing the overall structure of a reel device according to an embodiment of the present invention. FIG. 2 shows an example of a method for winding up paper using a reel device. FIG. 3 shows an example of a method for winding up paper using a reel device.

EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing this invention is demonstrated using drawings. The present invention is not limited to the embodiments described below, but also includes modifications from the following embodiments as appropriate within the range obvious to those skilled in the art.

FIG. 1 shows a reel device 100 according to an embodiment of the present invention. The reel device 100 is used to wind up paper produced by a paper machine to form a raw roll. Empty spool shafts 10 are sequentially fed into the reel device 100, and the reel device 100 receives these and winds paper around the circumferential surface of the empty spool shaft 10. In FIG. 1, the moving path of this spool shaft 10 is shown by a broken arrow.

As shown in FIG. 1, the reel device 100 according to the present embodiment includes a primary arm 20, a rail 30, a guide 40, a reel drum 50, a drive roller 60 (shaft drive means), and a secondary arm 70.

The primary arm 20 receives the spool shaft 10 from a supply device (not shown) for the spool shaft 10, and conveys the spool shaft 10 along the circumferential surface of the reel drum 50 onto the rail 30. The primary arms 20 are arranged at two locations on both end surfaces of the reel drum 50. Each primary arm 20 includes, for example, a substantially U-shaped arm portion 21 and a rotation shaft 22 that rotates this arm portion 21 . It is preferable that the rotation shaft 22 of the primary arm 20 is set coaxially with the drive shaft of the reel drum 50. The primary arm 20 conveys the spool shaft 10 to the rail 30 according to rotation by the rotation shaft 22 while holding both ends of the spool shaft 10 by the arm portion 21 . Further, the primary arm 10 urges the spool shaft 10 in a direction toward the drive roller 60 while the spool shaft 10 is winding up the paper.

The rail 30 is installed substantially horizontally to support the spool shaft 10. Rails 30 are also arranged at two locations on both end surfaces of the reel drum 50, and both ends of the spool shaft 10 are placed on these rails 30 by the primary arm 20. Note that both ends of the spool shaft 10 placed on the rail 30 are portions where paper is not wound. As will be described in detail later, winding of the paper around the spool shaft 10 is started at the transfer position from the primary arm 20 to the rail 30 to the spool shaft 10.

The guide 40 prevents the peripheral surface of the spool shaft 10 from substantially contacting the reel drum 50 until the spool shaft 10 reaches the delivery position to the rail 30 while the spool shaft 10 is being transported by the primary arm 20. It is configured to regulate the transport state (transport route) of the spool shaft 10. In the embodiment shown in FIG. 1, when the spool shaft 10 is supplied to the primary arm 20, both ends of the spool shaft 10 are held by the arm portion 21 of the primary arm 20, and at the same time are placed on the guide 40. be placed. Therefore, the spool shaft 10 does not fall to the circumferential surface of the reel drum 50 and is supported by the guide 40, so that a predetermined gap (space) is formed between the spool shaft 10 and the reel drum 50. becomes. Further, the guide 40 extends along the rotating direction of the primary arm 20 and continues to maintain a gap between the spool shaft 10 and the reel drum 50 during conveyance by the primary arm 20. On the other hand, the guide 40 does not extend to the position where the spool shaft 10 is transferred from the primary arm 20 to the rail 30. Therefore, the peripheral surface of the spool shaft 10 comes into contact with the reel drum 50 only after reaching this transfer position.

However, the guide 40 may extend so that the spool shaft 10 does not come into contact with the reel drum 50 even at the delivery position, and maintains a distance between the two at the delivery position. At this time, it is preferable to ensure a distance of at least 1 to 10 mm between the spool shaft 10 and the reel drum 50. In this case, in order to wind the paper around the spool shaft 10, the paper may be brought into contact with the spool shaft 10 by, for example, blowing air using an air jetting means. It is most effective to use air to assist in wrapping the paper at this delivery position. Such auxiliary air is blown toward the paper spool shaft 10 from the reel drum 50 side. While blowing the paper onto the spool shaft 10 with this auxiliary air, glue or the like may be applied and the end of the paper may be wound around the spool shaft 10.

In the embodiment shown in FIG. 1, the guide 40 is configured so that the spool shaft 10 and the reel drum 50 are in contact with each other at the delivery position, but the guide 40 is configured so that the spool shaft 10 and the reel drum 50 are in contact with each other at the delivery position. The guide 40 may be configured to maintain the gap. In the present invention, since the spool shaft 10 is not rotated by the reel drum 50 at the time when the paper starts to be wound onto the spool shaft 10, the spool shaft 10 and the reel drum 50 are not rotated at this delivery position (at the time when the paper begins to be wound). contact is not necessarily required. Further, the guide 40 may be configured to arbitrarily adjust the gap distance between the spool shaft 10 and the reel drum 50. For example, by making it possible to change the installation position of the guide 40, making it possible to change the shape of the guide 40, or making it possible to add other parts to the guide 40, the distance between the spool shaft 10 and the reel drum 50 can be changed. The distance may be adjusted arbitrarily.

The reel drum 50 conveys paper supplied from a paper machine (not shown) along its circumferential surface and winds it around the spool shaft 10 . The speed at which paper is wound around the spool shaft 10 basically depends on the rotational speed of the reel drum 50. Therefore, by increasing the rotational speed of the reel drum 50, paper production efficiency can be increased.

The drive roller 60 rotationally drives the spool shaft 10 placed at the delivery position of the rail 30. The rotational speed of the drive roller 60 is basically set to match the rotational speed of the reel drum 50. The drive rollers 60 are preferably arranged at two locations on both end surfaces of the reel drum 50 like the primary arm 20 and the like, but may be provided only on one end surface of the reel drum 50. When the drive roller 60 is installed at two locations, both ends of the spool shaft 10 (portions where paper is not wound) come into contact with the circumferential surface of the drive roller 60. As a result, the spool shaft 10 rotates as the drive roller 60 rotates. As shown in FIG. 1, each drive roller 60 is arranged such that the spool shaft 10 is interposed between the drive roller 60 and the reel drum 50. That is, the spool shaft 10 contacts each drive roller 60 and also contacts the reel drum 50 at the delivery position. Further, the rotation direction of the drive roller 60 coincides with the rotation direction of the reel drum 50. Therefore, the spool shaft 10 that is rotationally driven by the drive roller 60 rotates in the opposite direction to the drive roller 60 and the reel drum 50. Furthermore, the rotational speed of each drive roller 60 matches the rotational speed of the reel drum 50. As a result, the rotational speed of the spool shaft 10 rotationally driven by each drive roller 60 becomes synchronized with the rotational speed of the reel drum 50. Note that the drive roller 60 is preferably of a belt type so that rotational force can be transmitted even while the spool shaft 10 is moving.

However, when producing household paper, for example, the rotational speed of the spool shaft 10 (specifically, the rotational speed of the drive roller 60 that drives the spool shaft 10) is made slower than the rotational speed of the reel drum 50. It is also possible to wrap paper around the spool shaft 10. In the case of household paper, since crepe is often applied, it is possible to wind the paper even if the rotational speed of the spool shaft 10 is lowered. Note that it cannot be used in products because the crepe rate changes, but this is not a problem since the bottom roll is not normally made into products. If the rotational speed of the spool shaft 10 is high, the rotational speed will be high and the vibration will be large, leading to a failure of the spool shaft 10, but if the rotational speed can be lowered, this will be a countermeasure against the failure. The range for reducing the rotational speed of the spool shaft 10 (drive roller 60) is preferably 70 to 90% of the rotational speed of the reel drum 50. If the rotational speed of the spool shaft 10 is slowed down to 70% or less, the paper is likely to break due to the speed difference when it comes into contact with the reel drum 50. Furthermore, if the rotational speed of the spool shaft 10 is 90% or more, the vibrations will remain large, so there is little point in adjusting the rotational speed.

The secondary arm 70 moves the spool shaft 10, which has been completely wrapped with paper (in a fully wound state), along the rail 30. Note that the secondary arm 70 may bias the spool shaft 10 in a direction toward the reel drum 50 while winding the paper around the spool shaft 10. Similar to the primary arm 20, the secondary arms 70 are arranged at two locations on both end surfaces of the reel drum 50. Each secondary arm 70 includes, for example, a U-shaped arm portion 71, a shaft portion 72 connected to this arm portion 71, and a cylinder portion 73 for moving this shaft portion 72 forward and backward (expanding and contracting) in the axial direction. include. The secondary arm 70 moves the spool shaft 10 along the rail 30 by advancing (extending) the shaft part 72 with the cylinder part 73 while holding both ends of the spool shaft 10 with the arm part 71. . Note that the secondary arm 70 can also be biased in the direction of pressing the spool shaft 10 toward the reel drum 50 by applying force in the direction of retracting (shrinking) the shaft part 72 using the cylinder part 73.

Next, an example of the operation of the reel device 100 will be described with reference to FIGS. 2 and 3. First, as shown in FIG. 2(a), when the primary arm 20 is in the initial position, it is on standby with the opening of the arm portion 71 facing upward. A spool shaft 10 is supplied there. The spool shaft 10 is held by the arm portion 71 of the primary arm 20 and is placed on the guide 40 at the same time.

Next, as shown in FIG. 2(b), when the primary arm 20 rotates about 90 degrees along the circumferential direction of the reel drum 50, the spool shaft 10 is moved onto the rail 30 by the conveyance of the primary arm 20. It is handed over. Further, during this conveyance, the conveyance path of the spool shaft 10 is regulated by the guide 40 so that the spool shaft 10 does not come into direct contact with the reel drum 50. Further, when the spool shaft 10 reaches the delivery position on the rail 30, the paper S sent along the circumferential surface of the reel drum 50 is attached to the circumferential surface of the spool shaft 10.

Further, since both ends of the spool shaft 10 contact the drive roller 60 on the rail 30, a rotational driving force is applied to the spool shaft 10 by the drive roller 60. At this time, the primary arm 10 urges the spool shaft 10 in the direction of pressing it toward the drive roller 60 side. Since the rotational speeds of the drive roller 60 and the reel drum 50 are substantially the same, as a result, the rotational speed of the spool shaft 10 is synchronized with the rotational speed of the reel drum 50. At this stage, the spool shaft 10 is substantially rotationally driven only by the drive roller 60. That is, at this point, the spool shaft 10 is not in contact with the reel drum 50 or is only in light contact with the reel drum 50 to the extent that rotational force is not transmitted, and the reel drum 50 is substantially in contact with the spool shaft 10. No rotational driving force is applied. Therefore, it is not necessary to strongly press the spool shaft 10 toward the reel drum 50.

Next, as shown in FIG. 2(c), the spool shaft 10 is rotated by the drive roller 60, so that the winding of the paper around the periphery of the spool shaft 10 progresses. As the winding of the paper around the spool shaft 10 progresses, the surface of the paper wound around the spool shaft 10 also comes into contact with the reel drum 50, and rotational driving force is gradually transmitted from the reel drum 50 to the spool shaft 10. It will be done. However, at the initial stage of winding the paper, the spool shaft 10 is mainly rotationally driven by the drive roller 60 and does not depend solely on the rotational driving force of the reel drum 50.

Next, as shown in FIG. 3D, when the amount of paper wrapped around the front frame spool shaft 10 exceeds a predetermined value, both ends of the spool shaft 10 do not come into contact with the drive roller 60. It no longer receives the rotational driving force. That is, the rotating shaft of the spool shaft 10 gradually advances on the rail 30 as the diameter of the paper wound around its circumferential surface increases, but the position of the drive roller 60 is not fixed. Therefore, as the spool shaft 10 advances on the rail 30, it comes out of contact with the drive roller 60 at a certain point. Instead, since the paper surface wrapped around the circumferential surface of the spool shaft 10 is in contact with the reel drum 50, the spool shaft 10 continues to rotate under the rotational driving force of the reel drum 50. In particular, as the diameter of the paper wound around the spool shaft 10 increases, the paper surface of the spool shaft 10 and the reel drum 50 come into stronger contact. Therefore, the spool shaft 10 continues to rotate in synchronization with the reel drum 50.

Furthermore, when the spool shaft 10 comes off the drive roller 60, it also comes off the primary arm 20. In other words, the spool shaft 10 is held by the primary arm 20 until it comes off the drive roller 60 (see FIG. 2(c)). Then, at the stage when the spool shaft 10 is detached from the primary arm 20, the spool shaft 10 may be held by the secondary arm 70. At this time, the spool shaft 10 may be urged toward the reel drum 50 side by the secondary arm 70 so that the paper surface wound around the spool shaft 10 comes into strong contact with the circumferential surface of the reel drum 50.

Further, when the primary arm 20 releases the spool shaft 10 of the previous frame, it returns to the initial position and receives the spool shaft 10 of the next frame. The spool shaft 10 of the next frame is held by the arm portion 71 of the primary arm 20 and placed on the guide 40 at the same time as the spool shaft 10 of the previous frame.

Next, as shown in FIG. 3(e), when the spool shaft 10 of the first frame approaches the fully wound state, the primary arm 20 holding the spool shaft 10 of the next frame is moved along the circumferential direction of the reel drum 50. The spool shaft 10 of the next frame is rotated to bring the circumferential surface of the spool shaft 10 of the next frame into contact with the surface of the paper wound around the spool shaft 10 of the previous frame. Note that even during rotational conveyance of the spool shaft 10 of the next frame, the gap between the next frame and the reel drum 50 is maintained by the guide 40, so that the circumferential surface of the spool shaft 10 of the next frame is aligned with the reel drum 50. There is no direct contact with. In this way, the primary arm 20 is rotated to bring the empty spool shaft 10 of the next frame into contact with the spool shaft 10 of the previous frame. When the spool shaft 10 of the previous frame is fully wound, the paper is cut between the spool shaft 10 of the previous frame and the next frame by high-speed air jet, etc., and the end of the paper is attached to the spool shaft 10 of the next frame. After winding the paper, the work moves on to winding the paper using the spool shaft 10 of the next frame.

Next, as shown in FIG. 3(f), the fully wound front frame spool shaft 10 is moved along the rail 30 by the secondary arm 70, and is moved to a storage facility (not shown) for the original roll. be transferred to. In this way, the spool shaft 10 of the first frame is paid out. On the other hand, when the spool shaft 10 of the next frame is conveyed to the delivery position of the rail 30 by the primary arm 20, like the spool shaft 10 of the previous frame, the paper is wound under the rotational driving force of the drive roller 60. Begins. In this way, by repeating the process of changing the frame of the spool shaft 10 for the first frame and the next frame, a raw fabric roll in which paper is wound around the spool shaft 10 is continuously formed.

As mentioned above, in this specification, in order to express the content of the present invention, embodiments of the present invention have been described with reference to the drawings. However, the present invention is not limited to the above-described embodiments, and includes modifications and improvements that are obvious to those skilled in the art based on the matters described in this specification.

The present invention relates to a reel device for winding up paper produced by a paper machine and a method for winding up the paper. Therefore, the present invention can be suitably used in the paper manufacturing industry.

10... Spool shaft 20... Primary arm 21... Arm portion 22... Rotating shaft 30... Rail 40... Guide 50... Reel drum 60... Drive roller (shaft driving means)
70... Secondary arm 71... Arm part 72... Shaft part 73... Cylinder part 100... Reel device

Claims (8)

A primary arm that transports a spool shaft for winding paper to a delivery position;
a rail that rotatably supports the spool shaft conveyed to the delivery position by the primary arm;
a reel drum for transporting the paper to be wound around the spool shaft to the spool shaft supported by the rail and located at the delivery position;
Shaft driving means for rotationally driving the spool shaft so that the rotation of the spool shaft is synchronized with the rotation of the reel drum at the delivery position;
a secondary arm that moves the spool shaft, which is fully wound with the paper, along the rail;
a guide for regulating the conveyance state of the spool shaft so that the spool shaft does not substantially contact the reel drum until the spool shaft reaches the delivery position during conveyance by the primary arm;
The guide extends along the rotational direction of the primary arm, and is positioned so as to maintain a gap between the spool shaft and the reel drum during conveyance by the primary arm.
Paper machine reel device. The reel device according to claim 1 , wherein the guide is configured to be able to adjust the distance between the spool shaft and the reel drum at the delivery position. The reel device according to claim 1 or 2, wherein the shaft driving means is arranged to rotationally drive the spool shaft while the spool shaft is supported by the rail at the delivery position. A primary arm that transports a spool shaft for winding paper to a delivery position;
a rail that rotatably supports the spool shaft conveyed to the delivery position by the primary arm;
a reel drum for transporting the paper to be wound around the spool shaft to the spool shaft supported by the rail and located at the delivery position;
Shaft driving means for rotationally driving the spool shaft so that the rotation of the spool shaft is synchronized with the rotation of the reel drum at the delivery position;
a secondary arm that moves the spool shaft, which is fully wound with the paper, along the rail;
The shaft driving means is configured to stop applying a driving force to the spool shaft when the winding of the paper around the spool shaft progresses and the winding diameter of the paper reaches a predetermined value or more.
reel device. A primary arm that transports a spool shaft for winding paper to a delivery position;
a rail that rotatably supports the spool shaft conveyed to the delivery position by the primary arm;
a reel drum for transporting the paper to be wound around the spool shaft to the spool shaft supported by the rail and located at the delivery position;
Shaft driving means for rotationally driving the spool shaft so that the rotation of the spool shaft is synchronized with the rotation of the reel drum at the delivery position;
a secondary arm that moves the spool shaft, which is fully wound with the paper, along the rail;
When the spool shaft starts winding, no rotational driving force is applied by the reel drum, and rotational driving force is applied only by the shaft driving means,
The rotational driving force is applied to the spool shaft by the reel drum for the first time when the winding of the paper progresses and the winding diameter of the paper reaches a predetermined value or more.
reel device. a process of transporting a spool shaft for winding paper to a delivery position by a primary arm;
a step of rotatably supporting the spool shaft conveyed to the delivery position by the primary arm by a rail;
At the delivery position, rotating the spool shaft so that the rotation of the spool shaft is synchronized with the rotation of the reel drum;
Wrapping the paper conveyed by the reel drum around the spool shaft supported by the rail at the delivery position;
a step of moving the spool shaft, in which the paper is wound and is fully wound, along the rail by a secondary arm ;
In the conveyance step, the conveyance state of the spool shaft is controlled by a guide so that the spool shaft does not substantially contact the reel drum until the spool shaft reaches the delivery position during the conveyance by the primary arm. It is regulated;
The guide extends along the rotational direction of the primary arm, and is positioned so as to maintain a gap between the spool shaft and the reel drum during conveyance by the primary arm.
How to wind paper. a process of transporting a spool shaft for winding paper to a delivery position by a primary arm;
a step of rotatably supporting the spool shaft conveyed to the delivery position by the primary arm by a rail;
At the delivery position, rotating the spool shaft by a shaft driving means so that the rotation of the spool shaft is synchronized with the rotation of the reel drum;
Wrapping the paper conveyed by the reel drum around the spool shaft supported by the rail at the delivery position;
a step of moving the spool shaft, in which the paper is wound and is fully wound, along the rail by a secondary arm;
The shaft driving means is configured to stop applying a driving force to the spool shaft when the winding of the paper around the spool shaft progresses and the winding diameter of the paper reaches a predetermined value or more.
How to wind paper. a process of transporting a spool shaft for winding paper to a delivery position by a primary arm;
a step of rotatably supporting the spool shaft conveyed to the delivery position by the primary arm by a rail;
At the delivery position, rotating the spool shaft by a shaft driving means so that the rotation of the spool shaft is synchronized with the rotation of the reel drum;
Wrapping the paper conveyed by the reel drum around the spool shaft supported by the rail at the delivery position;
a step of moving the spool shaft, in which the paper is wound and is fully wound, along the rail by a secondary arm;
When the spool shaft starts winding, no rotational driving force is applied by the reel drum, and rotational driving force is applied only by the shaft driving means,
The rotational driving force is applied to the spool shaft by the reel drum for the first time when the winding of the paper progresses and the winding diameter of the paper reaches a predetermined value or more.
How to wind paper.

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