JP2006527696A - Winding method and winder - Google Patents

Abstract

Before a reel change a new core ( 5 ) is brought to a change station. When the old reel (R) is full, the web is changed to travel to the new core periphery and primary reeling beings. The web forms a reel through a reeling nip (N 1 ) between the loop of an endless supporting member ( 1 ) and the core. A change is made to secondary reeling, where a portion of the supporting member ( 1 ) brings the web to the reel, to move over to the reel in a nip (N) between said portion and the reel outer periphery. The core ( 5 ) is transferred so the nip (N) moves forward. A first guide roll ( 2 ) is transferred towards the core periphery so the distance of the nip (N 1 ) located between the core ( 5 ) and the loop of the supporting member ( 1 ) from the first guide roll ( 2 ) changes in the primary reeling.

Description

  The present invention relates to a winding method of the type presented in the preamble (preamble) of claim 1 according to the claims. The invention also relates to a winder of the type presented in the preamble of claim 10.

  At the final end of a paper machine or paper finisher, a paper web, typically several meters wide, manufactured and / or processed in the preceding equipment section is wound onto a reel spool and machine reel (Paper machine reel) is formed. In this winding process, a winding cylinder, which is rotatably supported, is typically used to guide the paper web onto the machine reel. In machine reels, nip contact between the take-up cylinder and the machine reel is utilized to affect the quality of the manufactured reel. One conventional solution is to keep the take-up cylinder fixed and reel reel spools that accumulate due to nip contact around the reel during take-up, for example on the end of the reel spool on the take-up rail. By supporting the part, the support structure is moved. The end of the reel spool operates according to a suitable loading mechanism to adjust the nip contact between the machine reel being formed and the take-up cylinder. Such winding concepts and related loading methods are described, for example, in Finnish Patent No. 91383 and corresponding US Pat. No. 5,251,835 and Finnish Patent Application No. 950274 and corresponding US. This is disclosed in Japanese Patent No. 5,690,298.

  Another known solution is that the take-up cylinder is arranged to move on the carriage, the machine reel being rotated by a center drive in a fixed take-up station, i.e. the center of the reel spool. Stay in the same place. As the machine reel radius increases, the take-up cylinder shifts as the carriage that supports it moves through the guide. Such an arrangement is known, for example, from European Application Publication No. 792829 and its corresponding US Pat. No. 5,988,557.

  U.S. Pat. No. 5,370,327 describes the angular position of the nip between the take-up cylinder and the machine reel as the take-up cylinder moves vertically, so that the reel moves on the take-up rail. Disclose a solution that can keep the angular position) constant. The low position of the take-up cylinder and the vertical movement of the cylinder allows the reel spool to be transferred from storage to the take-up station along a straight transfer path. This solution accommodates two pairs of take-up carriages, and the pair that has completed delivery of a full machine reel returns past the other pair that guides the reel to be taken up, creating a new empty Reels and spools can be collected.

    According to Finnish Patent Application No. 950274 and its corresponding US Pat. No. 5,690,298, in addition to a stationary take-up cylinder that guides the web onto the reel, it is installed at a lower position and moves vertically. Auxiliary rolls can be used. This auxiliary roll forms a second nip with the machine reel formed by the moving winding station. This auxiliary roll comes into contact with the reel that has become full and has been removed from the take-up cylinder before replacement. Corresponding arrangements related to exchange are disclosed in Finnish Patent No. 91383 / US Pat. No. 5,251,835.

  Further, from the publication EP-860391, a winder is known which guides a web to a reel via a belt or wire guided by a guide roll. That is, the belt or wire provides a long take-up nip with uniform pressure in the lower half area of the reel. The pressure can be adjusted by belt or wire tension. The belt or wire loop is tilted in a vertical plane so that the first guide roll in the direction of web travel can be raised against a new reel spool that remains on the take-up rail above the belt. be able to. When growing, the reel is wound so that the reel continues in contact with a downwardly inclined wire or belt run that follows the guide roll and advances the web to the reel. Advance on the rail.

  Furthermore, U.S. Pat. No. 5,531,396 makes known a winder in which a wire loop is guided over a take-up cylinder and the web after the take-up cylinder is guided to the formed reel. ing.

  The problem with winding devices using wires or belts is the change from winding with a hard nip (with guide rolls) to winding with wires or belts when forming the bottom of the reel with primary winding. It is. This requires that movement from the primary winder is possible in both horizontal and vertical directions.

  It is an object of the present invention to provide a new winding method using a belt or wire that can improve the winding of the bottom while retaining the advantages of the known method. In order to achieve this object, the method according to the invention is mainly characterized by what is presented in the characterizing part of claim 1 of the appended claims. The first guide roll is transported in the peripheral direction of the reel spool against the direction of arrival of the web. Accordingly, the winding of the bottom can be performed first with a hard nip, and after the transfer, with a more flexible nip. Therefore, it is not necessary to transfer the reel and spool during the primary winding. Next, the winding device according to the invention is characterized by what is presented in the characterizing part of claim 10.

  Other embodiments of the invention and their advantages are referred to in the dependent claims and the following description.

  Hereinafter, the present invention will be described in more detail with reference to the drawings.

  FIG. 1 shows a winding device that operates continuously. In this device, a paper web W having a width of a few meters, usually from a preceding section of a paper machine or paper finishing device, advances through a take-up nip N to a reel R. The winding nip is formed by a flexible support member 1 in the form of an endless loop such as a belt or wire. The support member 1 is guided over the two guide rolls 2, 3, with each of the guide rolls turning the member 1 in the opposite direction. In the direction of web travel, when the support member 1 supported by the first guide roll 2 travels on the surface of the roll, the first guide roll 2 starts in the initial stage of primary winding. A “hard nip” can be formed so that the reel being played and the support member 1 are in point contact with the reel. The latter guide roll 3 or the first guide roll 2 can be a follower roll, ie a friction roll, or it is possible to arrange separate drives for both rolls. The web is guided by the support member 1 and travels on the machine reel R. This reel is formed around a reel spool 5 which can be rotated by its own center drive. The reel spool 5 can be moved in the machine direction relative to the loop of the support member 1, which is a bearing housing at the end of the reel spool that allows the reel spool 2 to rotate. Arranged to be supported by a suitable support structure. In connection with the winding device, there is also a housing for an empty reel spool 5 (not shown), from which the roll is moved in order to change the web going to the machine reel R which is about to become full. 1 to the exchange station in the guide roll 2. Reel replacement takes place at production speed, i.e., a paper web that has passed to a fast and full reel is allowed to change to travel on a new reel spool carried to an exchange station.

  The machine reel R can be transferred in the direction of the machine by the transfer device 7. The transfer device supports the bearing housing at the end of the reel and spool and is moved by an actuator attached to the frame of the winder. The transfer device 7 is arranged so as to move on a substantially horizontal take-up rail 6 extending in the machine direction, and is formed in a carriage shape at each end of the reel / spool. The carriage supports a bearing housing at the end of the reel spool 5. When the diameter of the machine reel increases and the reel moves forward, the transfer path of the transfer device 7 and the web transport portion of the support member 1 form an angle that opens in the transfer direction. Continued contact state. In FIG. 1, the movement direction of the upper web conveyance portion of the loop of the support member 1 is obliquely downward, while the transfer path of the reel R (and the reel spool 5) is substantially horizontal.

  FIG. 2 shows the state of the primary stage winding. In this state, the reel spool 5 and the reel R formed around the reel spool by primary winding from the primary winding device 8 operate as a secondary winding device 7. It is transferred to. For this purpose, the transfer device 7 travels to a point close to the primary winding device 8 in the direction indicated by the arrow in the direction opposite to the web traveling direction. At this stage, the web W advances to the reel R via a part of the support member 1 that comes after the first guide roll 2.

  FIG. 3 shows that as the diameter of the reel R increases, the transfer device 7 is transferred along the take-up rail 6 in the direction of web travel, so that the winding between the web transport portion of the loop and the outer periphery of the reel is achieved. The reel is always in contact with the loop of the support member 1 at its lower side so that the web moves to the outer periphery of the reel R in the take-up nip N. The reel spool 5 that forms the core of the new reel is conveyed to the primary winding device 8. FIG. 3 also shows the state in which the loop of the support member 1 has advanced in the machine direction so that the first guide roll 2 is located directly below the new reel spool 5. The movement of the first guide roll 2 and the loop is described in more detail below.

  FIG. 4 shows that by lowering the first winding device 8 in the vertical direction, a new reel spool 2 is carried to the exchange station and over the first guide roll 2 to create a so-called hard nip. The state which contacted a part of loop of the supporting member 1 to advance is shown. Prior to this, the new reel spool 5 has already been accelerated to the speed of the web by driving the primary winding device 8. In the exchange station, the plane connecting the central axis of the reel spool 5 and the central axis of the guide roll 2 is substantially vertical. Compared with the state of FIG. 3, the old machine reel R in the secondary winding has moved forward as the reel diameter increases, ie the winding nip N between the reel R and the loop of the support member is above the loop. It has just moved in the direction of travel of the part. The paper web W now travels between a new empty reel spool 5 and the first guide roll 2 of the loop, further along the web transport section on the upper side of the loop of the support member 1 and Move to the periphery (or periphery) of the old reel R in the winding nip N. FIG. 4 further shows how the old reel R comes into contact with the press roll 9 that is rotatably supported at this stage and rotates by its own drive. Is intended to ensure the density of the surface layer of the reel. The nip between the support member 1 and the shell of the new reel spool 5 through which the web passes is provided with the reference symbol N1.

  FIG. 5 shows a state in which the web heading to the old reel R is exchanged so as to advance around the new reel spool 5, i.e. the nip between the reel spool 5 and the first guide roll 2. After N1, the web follows the surface of the new reel spool 5 and starts to form a new machine reel R around it, in which case the nip N1 forms a winding nip in the primary winding . Although not described in detail here, the replacement method may include moderate air blowing, which causes the web to break and be guided around a new reel spool 5. The exchange takes place in a known manner at full web speed, i.e. web production speed. The reel spool 5 is in the primary winding device 8 during the exchange.

  FIG. 5 shows how the end point of the secondary winding of the old reel R comes before the second guide roll 3 (position of the nip N). Further, the secondary winding can be continued so that the winding nip N moves over the second guide roll 3 to the end of the downwardly inclined portion of the support member 1. .

  FIG. 6 shows that the old full machine reel R moves forward with the transfer device 7 away from contact with the loop of the support member 1 to the discharge station, while the press roll 9 follows the movement of the surface of the machine reel R and The state which moves so that it may contact continuously is shown. When the old machine reel R is transported away from the support member loop and when a layer of thickness is introduced around the new reel spool 5 in the first primary winding stage, The loop is transported such that the first guide roll 2 moves further away from the new reel as indicated by the arrow in the peripheral direction of the reel spool against the direction of arrival of the web, and The peripheral surface of the reel comes into contact with the loop at a free (unconstrained) portion of the support member 1 that immediately follows the guide roll 2, that is, the state is the same as in FIG. 2. At this stage, the new reel spool is still in the primary winding device 8. Therefore, the take-up nip N <b> 1 moves in the traveling direction of the support member 1 with respect to the guide roll 2.

  Here, the direction of arrival of the web is related to the direction in which the web enters the take-up nip between the loop of the support member 1 and the reel spool 5. There, the web W is guided by the first guide roll 2 (as shown in FIGS. 4 to 6 where the entry of the web into the loop is guided by the web guide roll 10 before the loop, ) It can arrive at the part of the loop of the support member that bends over its roll 2, or the web can be guided by the reel spool 5 and its top web layer to reach the nip, That is, the web is first guided along the surface of the reel before entering the take-up nip N1.

  When the full reel R is removed from the winding device, the transfer device 7 is free to move on the rail 6 toward the primary winding device 8 to the position of FIG. In this position, the reel spool 5 in the primary winding device 8 and the reel R that has begun to form around itself are delivered to the transfer device 7 for secondary winding. Next, the secondary winding of the new reel R proceeds again along the web conveying portion on the upper side of the loop of the supporting member 1 according to FIGS. 2 to 6. During the secondary winding, the guide roll 2 is again transported in the direction of web travel (from the position of FIG. 2 to the position of FIG. 3), i.e. when a new reel spool is brought back to the exchange station. Return to where you would be.

  It should be noted that the contact of the nip with the support member 1 continues during the entire winding, i.e. when changing (changing) from primary winding to secondary winding with the loop of the supporting member of the nip. Contact is maintained continuously as the reel spool 5 is delivered from the primary winding device 8 to the transfer device 7. The transfer device 7 starts to convey the reel spool 5 and the reel directly forward from a predetermined position where the primary winding device 8 holds the reel spool 5 during replacement and during the entire primary winding. be able to. When the reel spool 5 is delivered from the primary winding device 8 to the transfer device 7, the torque for rotating the reel spool 5 is determined in a known manner from the drive unit of the primary winding device 8 to the drive unit of the transfer device 7. Can be changed. The drive of the transfer device 7 moves along with the transfer device, and the reels 5 and the reels R around the reel spool 5 and the reel R around them at the speed required by the production speed during the secondary winding. Rotate until cutting starts to slow down.

  The transfer of the guide roll 2 against the direction of arrival of the web W means that the position of the loop of the support member 1 such as a belt or a wire comes into contact with the periphery of the new reel that starts to form around the reel spool 5. The advantage of shifting from the guide roll 2 to the free part of the support member 1 following the guide roll is obtained. A similar relative shift could actually be obtained by moving the reel spool 5 in the primary winding device in the direction of belt loop transport. However, the disadvantage in this case is that in the primary winding, it will be necessary to guide the movement of the reel spool 5 such that its total amount changes continuously due to the web W taken around it. is there. When operating in accordance with the method of the present invention, the central axis of the reel spool 5 can be held in place during such a transfer stage of the winding nip and even during the entire primary winding. . This in turn makes it possible to form a fixed primary winding device so that the primary winding device 8 can only move according to at least one substantially vertical transfer path, but winding It is not necessary to arrange the device so that it can move horizontally in order to transport the reel spool 5 in the direction of the loop of the support member.

  Another advantage is that the guide roll 2 is movable in the peripheral direction of the reel spool 5. If the position of the guide roll 2 can be changed as described above, first it is directly against the hard take-up nip N1 (support that is proceeding beyond the first guide roll 2). The winding of the bottom around the new reel spool 5 is triggered (in contact with the member 1) or directly on the support member 1 (free part of the support member following the belt guide roll 2). It is possible to choose whether to start directly against, i.e., "soft" nips against N1 (contact). It is not necessary to transfer the reel spool 5 to select this starting position, but the reel spool can always be lowered along with the primary winding device 8 along the same transfer path to the exchange station. The starting position only depends on the position where the first guide roll 2 is carried. The web is exchanged and travels on the reel spool 5 of the exchange station and the bottom winding is started directly against the hard or soft nip.

  Effectively, the procedure is as follows: after the exchange, in the first stage of the primary winding, the winding of the first web layer around the bottom of the reel, i.e. the reel spool 5, is brought into the hard nip N1. Starting against the other, the reel spool 5 stays in the exchange station, and after this the second stage of the primary winding is entered by transferring the first guide roll 2 to the reel spool 5 After this, the bottom is wound up against the flexible nip N1.

  By transferring the guide roll 2 in the machine direction, a suitable starting point is found where the guide roll is installed during the first stage of exchange and primary winding. When the web is changed and the reel starts to increase around the new reel spool, the guide roll 2 descends vertically as the reel increases, and this movement also causes the winding in the first stage of the primary winding. The linear load on the take-off nip is adjusted.

  FIG. 1 schematically shows the mobility of the first guide roll 2 and the second guide roll 3. The first guide roll 2 can thereby determine the position of the take-up nip in the primary take-up, but effectively, in both the vertical and horizontal directions perpendicular to its axis of rotation. It is possible to move in such a way that the transfer operations in the directions are independent of each other. Therefore, the guide roll 2 can be positioned at a precisely selected point within an area of a certain size on a vertical plane that matches the traveling direction of the web, from the first point to the second point. The transfer can be performed on a desired transfer path. The same possibility exists for the second guide roll 3 for movement. In practice, the movement in the case of both guide rolls is such that the roll is rotatably attached to the first element and is attached so that it can move linearly in one direction in the aforementioned vertical plane within that element, Then, it can be carried out by arranging the elements so that they can move linearly in a direction perpendicular to the first direction on the same vertical plane. This type of element is on both ends of the roll on the end of the winder.

  In the embodiment according to FIGS. 2 to 7, the entire loop 1 of the support member 1 has to move according to the movement of the first guide roll 2, i.e. the second guide roll 3 is the desired loop of the loop. The movement of the first guide roll 2 must be followed so that the position is maintained. This can be done in such a way that the rotation axes of the first guide roll 2 and the second guide roll 3 are interconnected with a rigid connection schematically illustrated in FIG. It is. In practice, the movement of the guide rolls can further be carried out in such a way that each guide roll is mounted movably in the height direction in its own carriage. This carriage can then be moved in the machine direction within the frame of the winding device. Therefore, for example, by actively moving the carriage of the first guide roll 2 and by adjusting the altitude (height) position of the guide roll 2 in the carriage, the guide roll is The primary winding device 8 and the reel / spool 5 therein can always be installed at the correct position. The second guide roll 3 follows the movement of the first guide roll so that the angle of the loop of the support member with respect to the horizontal plane changes or remains unchanged as desired. In practice, the movement of the second guide roll 3 must be actively guided in only one direction, and the roll is automatically perpendicular to said direction because of the rigid connection. Will install himself in the direction. For example, when transporting the carriage of the first guide roll 2 with an active actuator and adjusting the altitude position of the roll 2 in the carriage with the active actuator of such a carriage, the second In the carriage of the roll 3, only the height has to be positively adjusted, and the carriage automatically follows the movement of the first roll 2 in the machine direction via a rigid connection.

  The tension of the support member 1 which is one of the operating variables during the primary winding and in particular during the secondary winding is, for example, movably attached to the connecting body of the roll and in contact with the loop of the support member 1 Can be carried out by a tension roll.

  A second possibility for arranging the movement of the loops of the support members is that the guide rolls 2, 3 are brought together via a rigid connecting body which will determine the distance between their centers. Rather than being connected, it is arranged to be movable so that they can move completely independently of each other within the limits set by the loop. The possibility of movement of both rolls is the same as described above. For example, although both rolls can move in both the height direction and the machine direction, the tension of the support member 1 can also be adjusted by these mutual movements.

  As can be seen from the figure, the primary winding device can move vertically along a vertical guide within the frame of the winding device. That is, the movement is linear. The primary take-up device locking jaws, to which a new reel spool 5 support housing can be mounted, are transferred from the frame in the direction in which the reels are to be transferred during the secondary take-up, i.e. the transfer direction of the transfer device 7. Is directed to. The nip N1 between the new reel spool 5 and the support member 1 lowers the primary winding device to hold the first guide roll 2 and the support member loop in the previously transferred position. Alternatively, it can be closed by holding the primary winding device 8 in its place and raising the first guide roll 2 until the web stays between the support member 1 and the reel spool 5.

  7 to 11 show a winding device whose stages are basically the same as those described above. However, in addition to the first guide roll 2 and the second guide roll 3, the third roll inside the loop of the support member 1, that is, the web traveling direction before the first guide roll 2. There is an auxiliary roll 11 located in the position. In the first guide roll 2, the traveling direction of the loop is not changed to the opposite side, but the portion of the support member 1 that faces obliquely upward is changed to the portion that faces obliquely downward, and the winding nip is moved along this direction. N is transferred in the secondary winding. On the diagonally upward part between the auxiliary roll 11 and the first guide roll 2, the support member 1 carries the web towards the take-up nip N1. The auxiliary roll can be used to adjust the tension of the support member. Furthermore, a roll 12 is provided that contacts the support member outside the loop and can be used as a guide roll that positions the support member 1 laterally by movement (arrow) at one end thereof.

  The advantage of the embodiment of FIGS. 7 to 11 is that the first guide of the inner rolls of the loop is desired when it is desired to change the mutual position of the guide roll 2 and the take-up nip N1 in the primary winding. • Only roll 2 can be moved and the other rolls can remain in the same position at all stages.

  The planar flexible support member 1 that forms a closed loop by two or more rolls is advantageously a material that is permeable to air (such as a wire) such as a wire. However, non-air permeable support members such as belts with closed surfaces are also within the scope of the present invention. The support member has the same structure in the transverse direction of the machine, i.e. corresponds to the width of the web to be wound. However, the scope of the present invention also includes the idea that the loops proceed in a parallel and adjacent relationship while the geometrical configuration in the side view is exactly the same as that shown in FIGS. . Therefore, the tension of the loop can be adjusted and adjusted independently, for example, according to a known principle according to the publication EP-860391.

  The primary winding device 8 is preferably movable up and down in the vertical direction. In this case, a new reel spool 5 is taken from the storage (storage) at the upper position, and a replacement and primary winding station is formed at the lower position. However, during the exchange and primary winding phase, the primary winding device holding the new reel spool can be completely stationary in its position. In this case, the new reel spool is transported from the top to the primary winder by a special transfer member, for example a crane. Therefore, the reel nip N1 must be closed by moving the first guide roll 2.

It is a side view which shows roughly the main principle of a winding apparatus. FIG. 2 is a side view of a winding device showing different stages of the winding process. FIG. 2 is a side view of a winding device showing different stages of the winding process. FIG. 2 is a side view of a winding device showing different stages of the winding process. FIG. 2 is a side view of a winding device showing different stages of the winding process. FIG. 2 is a side view of a winding device showing different stages of the winding process. FIG. 4 is a side view of a winding device showing different stages of the winding process according to a second embodiment. FIG. 4 is a side view of a winding device showing different stages of the winding process according to a second embodiment. FIG. 4 is a side view of a winding device showing different stages of the winding process according to a second embodiment. FIG. 4 is a side view of a winding device showing different stages of the winding process according to a second embodiment. FIG. 4 is a side view of a winding device showing different stages of the winding process according to a second embodiment.

Claims (14)

Prior to reel replacement, a new empty take-up core (5) is brought to the exchange station and is in exchange connection with the paper web (W) that has advanced to the old reel (R),
When the old reel (R) is full, the web is changed to an exchange event and proceeds to the periphery of the new take-up core (5), the primary take-up is started, and the primary take-up takes place on the paper web. Is guided around the new winding core,
In the primary winding, the paper web is guided to form a reel around the winding core (5) through a winding nip between the loop of the endless support member (1) and the winding core;
The primary winding is changed to the secondary winding, and in the secondary winding, a part of the support member (1) carrying the web carries the web to the reel, and the part of the support member and the outer periphery of the reel The web moves onto the reel at the take-up nip (N) between the
At least during secondary winding at a certain stage, the winding core (5) is positioned relative to the loop of the support member (1) so that the winding nip (N) is positioned with respect to the reel (R) diameter. The endless support member (1) is moved so as to move forward on the web conveying portion of the support member in the traveling direction of a part of the endless support member (1),
In that way, a winding method in which the paper web is continuously wound on a reel around a rotating winding core,
The first guide roll (2) of the web conveying portion of the loop of the endless support member (1) is transferred in the direction of the peripheral portion of the take-up core (5), and the take-up core (5) and the support member ( A winding method characterized in that the distance between the winding nip (N1) and the first guide roll (2) between the loop of 1) is changed by primary winding.   In the winding method according to claim 1, the guide roll (2) is arranged such that the distance between the winding nip (N1) and the first guide roll (2) increases during the primary winding. A method characterized in that it is transported in the direction of the periphery of the winding core (5) against the direction of arrival of the paper web (W). 3. The winding method according to claim 2, wherein in the first stage of the primary winding, the reel formed around the winding core (5) has a support member (1) as a first guide roll (2). In contact with the support member at a position above
In the second stage of the primary winding, the first guide roll (2) is such that the reel further contacts the free part of the support member (1) immediately following the first guide roll (2). A method characterized by being transported to.   4. The winding method according to claim 1, wherein the winding reel (5) is in a stationary position during the primary winding.   5. A winding method according to claim 1, wherein the new winding core (5) contacts the loop of the support member (1) by a substantially vertical and linear movement. A method characterized by being carried to.   In the winding method of any one of Claims 1 thru | or 5, in the advancing direction of the supporting member 1, a 1st guide roll (2) and a 2nd guide roll (3) which follows this Is transferred such that the position of the loop of the support member (1) changes.   7. Winding method according to claim 6, characterized in that, in the transport, the movement of the guide rolls (2, 3) is determined according to the body connecting these rolls.   7. The winding method according to claim 1, wherein the guide rolls (2, 3) are transported independently.   6. Winding method according to any one of the preceding claims, characterized in that the guide roll (2) is transported in a loop of the support member (1). A winding device arranged to continuously wind a paper web on a reel around a rotating winding core,
A transfer device (7) for transferring the winding core (5) and the reel (R) formed around the core during the secondary winding, in the secondary winding, The paper web (W) is continuously guided to the reel (R) through the winding nip (N),
It has a device for transferring a new empty winding core (5) to an exchange station, in which the paper web (W) guided to the reel (R) in the secondary winding is exchanged and new Proceed around the winding core (5),
Having a device for holding a new winding core (5) in the primary winding station, in which the paper web passes through the winding nip (N1) of the new winding core (5). Guided around,
A loop formed by an endless support member (1), and the loop has a web conveying portion that forms a winding nip (N) by secondary winding, and the secondary winding, The transfer device (7) is arranged to transfer the reel so that the take-up nip (N) moves in the direction of travel of the web transport unit,
A first guide roll (2) located in the advancing direction of the support member (1) within the loop and within the head of the web transport section forming the winding nip (N);
Said first guide so that the distance between the winding nip (N1) located between the winding core (5) and the loop of the support member (1) and the first guide roll (2) changes. The roll (2) is arranged so as to be movable in the direction of the periphery of the winding core (5) in the primary winding station.   11. Winding device according to claim 10, characterized in that the central axis of the first guide roll (2) is linearly movable at least in the machine direction.   12. The winding device according to claim 11, wherein the central axis of the first guide roll (2) is linearly movable in both the machine direction and the height direction by means of mutually independent transfer operations. A winding device characterized.   14. The winding device according to claim 10, wherein the exchange station and the primary winding station are the same and are executed by the primary winding device (8), the primary winding device being new. Winding device arranged to hold the winding core (5) in the exchange station and in the primary winding station.   14. Winding device according to claim 13, characterized in that the primary winding device (8) is arranged by a linear guide so as to be movable substantially vertically on the frame of the winding device. .

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