EP1705142B1 - Winding device for continuously fed weblike or tapelike material - Google Patents

Description

The invention relates to a winding device for continuously fed web or strip-shaped material with at least two winding shafts for the flying wave change.

Winding devices for continuously fed web or belt-shaped material usually have at least two winding shafts which are movable on a closed path in order to be able to exchange a wound winding shaft for an empty winding shaft without interrupting the supply of material, that is to say without any rest.

The EP-A-0 427 408 discloses a winding device with two pairs of turret arms for receiving bobbins for flying wave change and with Rollenabsenkarmen for removal of the wound reel.

In another known winding device with a turret winder for non-stop wave change are mounted in two oppositely disposed about an axis rotatably driven rotary members at least two driven winding shafts. During the winding of the first winding shaft located in the winding position, a pressure roller constantly presses the material against the roll of material in order to ensure a wrinkle-free and bubble-free winding. As soon as the material roll has approximately reached the desired diameter, the turning process is carried out by gradually turning the wound first winding shaft during the winding process into a removal position and the unwound second winding shaft into the winding position with the rotary movement of the rotary members.

In order to ensure an error-free winding during the pivoting of the first winding shaft in the removal position and thereby ongoing winding process, it is - for example from the DE 41 04 635 or the EP 1 391 406 - Further known to carry during the pivoting a Hilfsandrückwalze with the first winding shaft, which presses the material to be wound on the roller.

The winding devices described above are disadvantageous in that on the one hand the removal of the roll of material is associated with a considerable effort, since the roll of material remains on the winding roll and this must first be removed, and on the other hand carrying a Hilfsandrückwalze in a pivoting range of 180 ° and is connected in the required for error-free winding system to the role with an unreasonable amount of effort.

To simplify the removal of the finished roll of material, it is also known to wrap the material on a mounted on the winding shaft sleeve and support the winding shaft during the normal winding operation on the non-driven side in a detachable bearing. During the turning process, the winding shaft with the wound winding tube - after opening the bearing - pivoted into the removal position, so that the finished roll can be pulled off together with the sleeve in a simple manner from the winding shaft. However, the one-sided storage of the winding shaft during the turning process is opposed to an excessively high load on the remaining drive-side bearing and the winding shaft. To solve this problem is in the EP 0 313 859 proposed a winding device, wherein the free end of the winding shaft during the turning operation by a support assembly is held, which comprises a guided along a guide segment gripper. The structural complexity of this support device is high. When in the DE 41 04 635 described arrangement, the tracking of the auxiliary roll when turning is limited to 90 °.

The invention has for its object to provide in a winding device with flying wave change during the winding process during the turning process for supporting the free end of the winding tube provided with a winding shaft effective support arrangement, the sufficiently large swivel range and error-free winding process in the turning process a structurally and drive side small Effort required.

According to the invention the object is achieved with a trained according to the features of claim 1 winding device. Advantageous developments and expedient embodiments of the invention will become apparent from the dependent claims.

The core of the invention is in a winding device with pivotable on a circular path in the removal position, one side mounted on a rotary member winding shafts with removable winding tube, the arrangement of a pneumatically, hydraulically or mechanically supported and both pivotable and in height movable support frame, one leg during pivoting the wound winding shaft whose shared journal is grasped and whose other leg is pivotally and releasably coupled to the rotating shaft in the respective position pivoting rotary member in the ongoing winding operation, so that the drive for moving the free bearing pin supporting leg during pivoting the wound winding shaft is caused from the winding position to the removal position solely by the rotational movement of the rotary member. The main advantage of this proposal is the simple and inexpensive design of the support without separate drive. According to a further important feature of the invention, the pivot arms of an auxiliary pressure roller are directly coupled to the legs of the support frame for pressing the material web during the pivoting process and forcibly guided. With a positive drive mechanism coupled to the pivoting movement of the wound winding shaft or the support frame, the auxiliary pressure roller can be automatically adjusted in height so that its axis during the pivoting operation substantially at the height of the axis of the winding shaft - that is approximately in a 3.00 - 4.00 o'clock. Position - is. As a result, even during the pivoting of the wound winding shaft, a bubble-free, wrinkle-free and straight-edged winding is possible. In addition, the auxiliary pressure roller can be designed structurally and drivingly simple. Ultimately, a trouble-free turning operation is ensured with the drive side little consuming support device in combination with the positively driven auxiliary pressure roller.

In a further embodiment of the invention, the legs of the support frame are connected via a cross member. The cross member is pivotally mounted on both sides in carriages, which are guided in a straight guide in machine stands of the winding device. At a further spar of the support frame a pneumatic or hydraulic cylinder is articulated to compensate for the heavy weight of the support frame on one side supported roll of material.

Fig. 1

eine perspektivische Ansicht einer Wickelvorrichtung mit einer bewickelten Wickelwelle in der Wickelposition;

Fig. 2

eine Ansicht der Vorrichtung nach Fig. 1 beim Verschwenken der bewickelten Wickelwelle in die Entnahmeposition und der unbewickelten Wickelwelle in die Wickelposition; und

Fig. 3

die Wickelvorrichtung am Ende des Schwenkprozesses mit einer in der Wickelposition befindlichen unbewickelten Wickelwelle und einer in der Entnahmeposition befindlichen bewickelten Wickelwelle.

An embodiment of the invention will be explained with reference to the drawing. Show it:

Fig. 1

a perspective view of a winding device with a wound winding shaft in the winding position;

Fig. 2

a view of the device according to Fig. 1 during pivoting of the wound winding shaft in the removal position and the unwound winding shaft in the winding position; and

Fig. 3

the winding device at the end of the pivoting process with a present in the winding position unwound winding shaft and located in the removal position wound winding shaft.

The winding device comprises a rotatably driven turnstile 1, on which - offset by 180 ° and each driven to rotate - a connected to winding tubes 26 first and second winding shaft 2, 3 is held in bearings 4, 5. On the machine frame, an existing from three bearing rollers 7 to 9 bearing 10 is mounted in which is stored during normal winding operation of the free bearing pin 6 located in the winding position first or second winding shaft 2 or 3. The bearing roller 7 is how Fig. 2 shows, attached to one of a pneumatic cylinder 11a actuated pivot arm 11 and can be pivoted out of the bearing 10 during the turning operation for replacing the winding shafts 2, 3. For pressing the material supplied via a roller system 28 to the winding shaft 2 located in the winding position or 3 or to the roll of material 27 is a held on a pivot frame 12a pressure roller.

The winding device further comprises a vertically movable and pivotable U-shaped support frame 13, which consists of a cross member 16 and a driver leg 14 and a support leg 15. The cross member 16 is rotatably mounted at the ends in a carriage 18 which is guided vertically displaceably in straight guides 17a of two machine stands 19. The support frame 13 is supported for balancing the high weight of the roll of material 27 via a spar 13 a on a hinged pneumatic cylinder 22 from. At the free end of the Mitnehmerschenkels 14 provided with rollers 20 entrainment claw 21 is provided which can be opened and closed and in the closed state in each case the winding shaft located in winding operation 2 or 3 surrounds. In the Mitnehmerschenkel 14 and the support leg 15 of the support frame 13 in each case a carriage (not shown) is slidably mounted in a guide. To the two carriages each pivot arm 23 is articulated. The free ends of the pivot arms 23 are connected to each other by a rotatably mounted auxiliary pressure roller 24. About acting on the pivot arms 23 pneumatic cylinder 25, the auxiliary pressure roller 24 is pressed against the roll of material 27, while this is pivotable in the removal position in a continuous winding process. On the machine frame 29 of the winding device, a locking device 30 is provided in order to be able to lock the turnstile 1, which is adjustable by means of a drive (not shown), in the respective position.

In the in Fig. 1 As shown, the almost completely wound first winding shaft 2, which is held in the bearings 4 and 10, in the winding position. The bearing 10 encloses at this time still the free bearing pin 6 of the first winding shaft 2. The support frame 13 which is held with its driving claw 21 at the attached to the turnstile 1 bearing 4 of the first winding shaft 2 and formed in the free end of the support leg 15 Receiving 15a of the bearing pin 6 of the winding shaft 2 engages, is in a rearward - in the direction of the roller system 28 - pivoted position, that is, also in the winding position in which the material is wound up almost to the end of the winding process. The held in the bearing 5 at the turnstile 1 second winding shaft 3, which was previously unloaded and equipped with an empty winding tube 26, is located in a first winding shaft 2 offset by 180 ° waiting position. The previously held with a locking device 30 on the machine frame 29 turnstile 1 and the first winding shaft 2 during the winding process holding bearing 10 are now released, so that - like the Figures 2 and 3 show - the turnstile 1 by means of a drive (not shown) in the clockwise direction can be gradually pivoted into a rotated position by 180 °. With the pivoting of the turnstile 1 - without interrupting the winding process - the wound first winding shaft 2 is brought into the unloading position and the free, equipped with an empty winding tube 26 winding shaft 3 in the winding position. During the pivoting of the two winding shafts 2, 3, the first winding shaft 2, which is heavily loaded with the material roll 27, is supported at its free end (bearing journal 6) by the support leg 15 of the support frame 13. Since the support leg 15 is coupled via the spar 16 and the driver leg 14 to the turnstile 1 is and the support frame 13 also guided vertically in linear guides 17 of the machine stand 19, follows the support leg 15, which does not have its own drive exactly the pivotal movement of the loaded winding shaft 2. The forces acting on the support leg 15 forces are from the on the spar 13 a of Support frame 13 hinged pneumatic cylinder 22 added.

During the pivoting of the first winding shaft 2, the material web 31 is no longer pressed by the pressure roller provided for the normal winding process, but by the auxiliary pressure roller 24, which is held on the support frame 13 and thus follows its movement, to the roll of material 27. Since the pivot arms 23 of the auxiliary pressure roller 24 are arranged to be movable in the longitudinal direction of the driver and the support leg 14, 15 of the support frame 13 and either forcibly with the pivoting of the support frame 13 (or with a separate controllable drive means) in height adjustable, the Auxiliary pressure roller 24 according to the change in position of the roll of material 27 during the pivoting operation constantly and automatically change their position so that they always in a 3:00 clock position, in which the axis of the winding shaft and the auxiliary pressure roller at the same level, rests against the roll of material 27. The 3.00 to 4.00 o'clock position of the auxiliary pressure roller 24 ensures complete contact with the roll of material 27 over the length thereof and ensures even during the pivoting process a faultless and - especially with several arranged on the winding shaft material rolls - a straight-edge winding.

When the two winding shafts 2, 3 have reached their position pivoted by 180 °, the turnstile 1 is restored locked on the machine frame 29. After the second winding shaft 3 has reached the winding position and the free bearing pin 6 is enclosed by pivoting back of the bearing roller 7 of the bearing 10, the material web 31 is severed and the winding process continues with the now driven second winding shaft 3.

Under the first winding shaft 2 with the roll of material 27, a lift truck (not shown) is driven, which supports the roll of material 27. After opening the driving claw 21 of the Mitnehmerschenkels 14 of the support frame 13 is pivoted back, the entrainment claw 21 is locked to the bearing 5 of the second winding shaft 3 and simultaneously positioned the support leg 15 under the bearing pin 6 of the second winding shaft 3. Thus, the pivoting process described above can also be initiated for the second winding shaft 3, as soon as it is almost completely wound with material. The roll of material 27 is withdrawn including winding tube 26 by means of the lift truck from the first winding tube 2. After the first winding shaft 2 has been fitted with a new winding tube 26, it is available for a new winding process.

LIST OF REFERENCE NUMBERS

1

turnstile

2

First winding shaft

3

Second winding shaft

4

Warehouse v. 2

5

Warehouse v. 3

6

Free bearing journal v. 2, 3

7 to 9

Bearing rollers v. 10

10

Warehouse v. 6

11

Swivel arm v. 10

11a

Pneumatic cylinder v. 11

12

12a

Swing frame v. 12

13

support frame

13a

Support spar v. 13

14

Mitnehmerschenkel v. 13

15

Supporting leg v. 13 15a Recording v. 15

16

Crossbar v. 13

17

straight guide

18

carriage

19

machine stand

20

Role v. 21

21

driving claw

22

Pneumatic cylinder v. 13

23

Swivel arms v. 24

24

Auxiliary presser roller

25

Pneumatic cylinder v. 23, 24

26

cores

27

material roll

28

roller system

29

machine frame

30

Locking device v. 1

31

web

Claims (9)

1. A winding device for continuously fed weblike or striplike material having at least two winding shafts (2, 3) that carry detachable winding tubes (26) for on-the-fly shaft change, characterized in that said winding shafts (2, 3) are unilaterally pivoted and driven in bearings (4, 5) on a turnstile (1) that rotates around a horizontal axis, and can be moved along a circular path using said turnstile (1), and in that they are held at the free bearing neck (6) in a detachable bearing (10) during winding operation and, while being rotated into their removal position, in a support element that includes a U-shaped support frame (13) that is held mechanically, pneumatically, or hydraulically and is rotatable, whose one support leg (15) supports the free bearing neck (6) when the wound winding shaft (2 or 3) is rotated and whose other follower leg (14) is hinged to and detachable from said turnstile (1) and contacts an auxiliary feed roller (24) pivoted to said support frame (13) and forcibly coupled to the frame's rotation at about its 3 to 4 o'clock position.
2. The winding device according to claim 1, characterized in that the support leg (15) and follower leg (14) are rigidly interlinked by a pivoted and generally vertically running transverse strut (16).
3. The winding device according to claim 2, characterized in that said transverse strut (16) is pivoted on both sides in generally vertically movable carriages (18) formed in straight guides (17) of machine stands (19) of said winding device.
4. The winding device according to claim 1, characterized in that said follower leg (14) comprises at its free end a detachable claw tappet (21) equipped with rollers (20) and being detachably linked to said turnstile (1) via the turnstile-mounted bearing (4, 5) of the respective winding shaft (2 or 3) that is in winding operation.
5. The winding device according to claim 1, characterized in that said turnstile (1) is held on the machine frame (29) by an interlocking device (30) when the respective winding shaft (2, 3) is in winding position.
6. The winding device according to claim 1, characterized in that said detachable bearing (10) comprises at least three bearing rollers (7 through 9) that encompass the free bearing neck (6) of the respective winding shaft (2, 3) during winding operation, and that a bearing roller (7) linked to the swivel arm (11) for releasing the bearing (10) before the wound winding shaft is rotated into its removal position is rotatable.
7. The winding device according to claim 1, characterized in that said auxiliary feed roller (24) is pivoted in swivel arms (23) that are each held on the support frame (13) in a hinge joint.
8. The winding device according to claim 7, characterized in that said hinge joints for the swivel arms (23) are movably placed on the legs (14, 15) of said support frame (13) and can be adjusted using a forced drive mechanism coupled with its movement so that the center axles of the auxiliary feed roller (24) and the wound winding shaft (2, 3) are about at the same height when rotated.
9. The winding device according to claim 1, characterized in that said support frame (13) is hinged to a pneumatic or hydraulic cylinder (22) to compensate the weight of the material roller (27).

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