EP1885637A1

EP1885637A1 - Apparatus for winding up at least two material webs

Info

Publication number: EP1885637A1
Application number: EP06741020A
Authority: EP
Inventors: Adolf Tauber; Robert Preuner
Original assignee: SML Maschinen GmbH
Current assignee: SML Maschinen GmbH
Priority date: 2005-05-30
Filing date: 2006-05-30
Publication date: 2008-02-13
Anticipated expiration: 2026-05-30
Also published as: ATE490214T1; AT501926A1; CN101184682B; CN101184682A; EP1885637B1; DE202006020888U1; WO2006128205A8; ES2354832T3; WO2006128205A1; PL1885637T3; AT501926B1; SI1885637T1; US7896283B2; DE502006008442D1; US20080191086A1

Abstract

An arrangement for winding up at least two material webs, in particular film webs, having at least two receiving devices, for the rotatable mounting of at least one winding core each. The receiving devices are transferable between a winding position for winding up at least one material web on the winding core, and a removal or loading position, respectively, for removing at least one winding core which has finished being wound up, or for feeding at least one empty winding core. At least two winding cores are coaxially arranged in the receiving device for simultaneously winding up the material webs on separate winding cores, the winding cores each being rotatably mounted in two bearing sites adjacent to the respective winding core. The receiving device has at least three carrying arms, one winding core each being mounted between two carrying arms.

Description

Device for winding at least two webs of material

The invention relates to a device for winding at least two material webs, in particular of film webs, with at least two receiving devices, for rotatably supporting at least one winding core, wherein the receiving devices between a winding position for winding at least one web on the winding core and a discharge or loading position at least two winding cores are arranged coaxially in the receiving device for simultaneously winding the material webs on separate winding cores, the winding cores being rotatable in each case in two bearing points provided adjacent to the respective winding core are stored. In particular stretch films, office films, decorative films, aluminum foils, diaper films or the like may be provided as film webs. However, other types of webs, such as paper webs, composite laminates, textile webs and the like, can be wound up.

So-called turret winder are already known from the prior art, which have at least one second position for removing a finished winder in addition to the winding position for continuous winding of the material webs. Such winders can also work inline with a production line with which a total material web is made.

From JP 2002020004 A a film winding device is known, in which two laterally arranged drive shafts for receiving in each case a winding tube are provided for winding two film webs on two coaxially arranged winding tubes. For central support of the winding tubes, a bearing element is provided, on both sides of which non-driven bearings are provided for receiving the winding tubes. The central bearing element is slidably mounted hiebei, so that the width of the cores can be variably adjusted. Due to the rotary mounting of the two winding tubes in laterally arranged drive shafts, the device according to the JP disclosure font adversely, however, limited to a maximum of two wound material webs. In addition, the total width is fixed by the laterally arranged drive shafts and it can be reduced by adjusting the central bearing element, only the width of a web to the same extent as the width of the other material web is increased.

To obtain a total web of material having a width of e.g. up to 8 m can be subdivided into webs of a few centimeters to about 75 cm width, it is known the total material web guided over several guide rollers to a longitudinal cutting station, with which the total material web is cut into several webs. For winding such a material web cut into a plurality of material webs, it is known from IT MI98U000377 to set up a corresponding number of winding devices for winding one web of material in succession. The disadvantage here is in particular that due to the number of material webs corresponding number of take-up a large space is required, such an overall arrangement is very sensitive to the straight guide of the webs due to the necessary long guidance of the webs of the film longitudinal cutting device to the respective take-up. In practice, the number of webs of material to be wound up with such a winding system is thus restricted to a maximum of four material webs. In addition, a change in the width of the webs of material in such a device only at standstill of the system is possible.

In JP 2193851 A yet another device for winding an ink ribbon is described, which is cut with a cutter into a plurality of narrower ribbons. Here, however, a continuous winding shaft is shown, as it should be avoided by the subject invention just.

The aim of the present invention is now to provide a device of the initially mentioned kind, wherein with a single device a plurality of material webs, in particular more than two webs, at the same time can be wound up. Here, a space-saving device for winding a plurality of webs to be created, in which in particular a bleeding of the webs of material is avoided. In addition, it should be possible to adapt the device to different widths of the material webs.

According to the invention this is achieved in that the receiving device has at least three support arms, wherein in each case between two support arms, a winding core is mounted.

The coaxial arrangement of a number of winding cores corresponding to the number of material webs and the storage of the winding cores between in each case two support arms in a single take-up device can thus provide a space-saving device for winding a plurality of material webs, i. especially of more than two webs of material to be created. Due to the space-saving arrangement and thus achieved reduction of the distances for the linear guidance of the material webs to the take-up device, a straight edge winding on the winding cores is also guaranteed. By providing two support arms per winding core, the distance of these bearings or the number of support arms can be easily adapted to the width of the webs of material or the total material web. In addition, a simple and time-saving removal of the finished windings or loads of the receiving device with the winding cores is possible. By providing in each case two support arms for supporting one winding core each, an arbitrary number of winding cores, in particular also 4, 5, 6, 7 etc. winding cores, can be wound simultaneously with one material web of any width.

In order to move the recording devices back and forth in a simple manner between a winding position and the unloading or loading position, whereby a continuous winding is made possible, it is advantageous if the receiving devices for transferring between the winding position and the unloading or loading position on a common rotatably mounted support device are attached. For the purpose of a structurally simple design of the bearing adjacent winding cores can be rotatably mounted in each case a common support arm.

However, in order to be able to set any free distance between two winding cores mounted in the receiving device, it may on the other hand be advantageous if each winding core is mounted in two support arms provided exclusively for supporting a single winding core, so that, for example, for the storage of two winding cores a total of four Support arms are provided.

For winding stretch films, it is particularly useful when cylindrical cores are provided as hubs, such cylindrical sleeves or tubular hubs are usually made of paper or plastic.

In order to achieve a so-called "axleless" winding of the material webs, in which no continuous winding shaft for supporting the sleeves is required, it is advantageous if the support arms for clamping each sleeve between two support arms extending into the interior of the sleeve or retractable quill exhibit.

If a quill, in particular the quill of an external support arm, a rotary drive is assigned, all coaxial arranged in the receiving device hubs can be rotated by the driven quill by the other hubs are entrained by the seated on the quill driven core.

With regard to a structurally simple embodiment of the mounting of the winding cores, it is advantageous if at least two centrally arranged support arms each have a quill protruding or extendable from both sides of the support arm.

If the quill has a rotatably mounted centering mandrel, which is displaceably mounted in the axial direction of the winding cores, wherein the centering mandrel via a pneuamtischen drive in the extended position can be transferred, the hubs can be clamped easily between two sleeves and removed after completion of a film winding of the recording device again.

For a particularly space-saving design in which the centering mandrel can be extended without a piston rod, it is advantageous if the centering mandrel is mounted on the outer ring of a rotary bearing, wherein on the non-rotatably arranged inner ring of the pivot bearing designed as a pneumatic piston central plate is attached.

In order to transmit the torque of a driven quill in a simple manner to the other quills, it is advantageous if the projecting on both sides of a support arm quills or their extendable centering mandrels rotatably, in particular form-fitting, are interconnected.

In particular, in the case of sleeves with a relatively small diameter of e.g. 2 inches (= 4.08 cm) to be able to realize high contact pressure and film tension, it is advantageous if the sleeves are each mounted with a separate winding shaft between two support arms.

In order to easily achieve an adaptation of the bearing points of the winding cores to different widths of the material webs, it is advantageous if the support arms are mounted displaceably in the axial direction of the winding cores.

To achieve a high contact pressure of the film, it is advantageous if each receiving device is associated with a contact roller pivotally mounted on the support device. Appropriately, in this case, the contact roller extends over the entire width of the receiving device, so that only a common contact roller is associated with the coiling in the receiving device winding cores. When the contact roller mounted on the support device is driven, the winding cores can be driven via the contact roller, wherein in particular also a pre-acceleration of the winding cores with the aid of the contact roller in the unloading or loading position is possible, before the hubs are transferred to the winding position.

Furthermore, it is favorable in terms of the contact pressure of the material webs to be wound up when the receiving device located in the winding position is associated with a contact roller pivotally mounted about a stationary axis. These contact rollers pivotably mounted about a fixed axis also expediently extend over the entire width of the receiving device, so that only a single common contact roller is assigned to the winding cores. If the contact roller which is pivotable about a stationary axis is driven, the drive rollers of the winding cores can also be achieved by means of this contact roller for the purpose of winding the material webs, with the contact roller being able to be supported by a center arm in particularly wide versions.

In order to cut the webs transversely to their forward direction after the completion of a roll, it is advantageous if the receiving device located in the winding position is associated with a cutting device which separates the webs transversely to the direction of production.

For receiving or removing a finished winding, it is advantageous if the receiving device located in the unloading or loading position is associated with a height-adjustable table with a tiltable receiving plate. Of course, however, another suitable automated device for removing the finished windings may be provided.

In order to automatically feed a new, still empty winding core after the removal of a finished winding of the picking device located in the unloading or loading position, it is advantageous if the receiving device located in the unloading or loading position is assigned a winding core magazine.

If between two recording devices an intermediate recording with a winding shaft extending over at least the entire width of the material webs or a tensioning device for clamping a single one across the entire width The material webs extending winding core is provided, can be changed by an intermediate step, the width of the webs without being hindered by the support arms of the Aufnahmevorrich- direction and without having to reduce the winding speed. However, such intermediate recording is not equipped in normal operation with a winding shaft or sleeve and not transferred to the winding position, but only in the event that a change in the width of the webs to be made. Such an intermediate receptacle can also be used to start a film extrusion line when the take-up device starts up inline with the extrusion line.

The invention will be explained in more detail with reference to the embodiments shown in the drawings, to which, however, it should not be limited. In detail, in the drawing:

Fig. 1 is a view of the take-up device 1 with two receiving devices on which five winding cores are mounted coaxially;

Fig. 2 is a plan view of the take-up device according to Fig. 1;

3, the reeling device 1 according to FIG. 1, but with a finished film winding in the unloading or loading position;

Fig. 4 is a plan view of the take-up device according to Fig. 3;

Fig. 5 is a sectional view of the storage of two cores;

5a shows a sectional view of the mounting of a winding tube with a winding shaft;

5b shows a sectional view of a quill which can be extended on both sides;

Fig. 5c in detail a sectional view of the quill of Figure 5b, but in its retracted position. 5d is a view of the storage of the winding tube in two separate support arms.

6 shows a view of a winding device 1 with three receiving devices; and

7 shows a view with an intermediate receptacle for the winding up of the material webs on a common winding core.

1 and 2, a take-up device 1 is shown in which two receiving devices 3 are mounted for receiving a plurality of coaxially arranged winding tubes 4 on a support device 2, a so-called turning cross.

The receiving devices 3 in this case each have six support arms 5, which are displaceably mounted in the direction of the common axis 4 "of the hubs 4 in a longitudinal guide 6. The possibility of longitudinal displacement of the support arms 5 thus allows the distance between two adjacent support arms 5 in a simple manner be adjusted and thus an adaptation to different widths of a material web 7 can be achieved.

To obtain the material webs 7, a material web 8 is cut into five material webs 7 with the aid of a longitudinal cutting device 9 in the exemplary embodiment shown.

The coming of the cutter 9 webs of material 7 are then guided via a guide roller 11 to a in a stationary axis of rotation 12 'pivotally mounted contact roller 12, the material webs 7 against the in the

Recording device 3 located hubs 4 presses. The winding cores 4 are usually paper or plastic sleeves which have a diameter of about 2 or 3 inches (= 4.08 or 7.62 cm) and a width of about 250 to 750 mm.

Each receiving device 3 is also associated with a pivotally mounted on the support device 2 contact roller 13, via which the contact pressure of the film can be adjusted to the hubs 4. In addition, via the contact rollers 12, 13 the Transmission of torque to the hubs 4 done. Alternatively, this is also possible via one or more bearings of the hubs 4. For pivoting the contact rollers 13 and the contact roller 12 each have a lifting arm 14 is provided. As can be seen in particular in FIG. 2, the width of the contact rollers 12, 13 extends in each case over the entire width of the five winding cores 4 arranged coaxially with one another.

At the same time, while the winding cores 4 located in a winding position 15 are wound with the material webs 7, the finished film windings 17, which are arranged on the receiving device 3 located in an unloading or loading position 16 (see FIG the receiving device 3 are loaded with empty hubs 4. For this purpose, the Entbzw. Beladestellung 16 a winding core magazine 18 assigned, in which a plurality of winding cores 4 is magazined, the winding cores 4 are fed by means of a slider 19 located in the loading or unloading 16 receiving device 3.

As can be seen in particular in FIG. 3, a finished film winding 17 is rotated from the winding position 15 with the aid of the carrying device 2 about the axis 2 'by 180 ° into the unloading or loading position 16. Then the over deflection rollers

21 guided material webs 7 cut with a pivotally mounted cutting blade 20 transversely to its longitudinal direction, so that on the newly introduced into the winding position 15 winding cores 4, a new winding begins, while in the loading or unloading 16 initially the rest of the webs 7 is wound before a height-adjustable table

22 is moved up to the finished film windings 17 for receiving this. The height-adjustable table 22 has hereby a tiltable table top 23, whereby the film windings 17 received on the table top 23 can be transported further after lowering the table 22 by means of a tilting movement.

5, the axleless storage of the hubs provided as hubs 4 by the clamping between two provided on the support arms 5 bearings 5 'can be seen, wherein in the illustrated embodiment, a winding core 4 is clamped between two separate support arms 5 respectively. For this purpose projects from the support arms 5 each directed to the winding core 4 quill 24. The insertion of a centering pin 30 in the winding core 4 is achieved by moving the support arms 5 in the axial direction 4 'of the hubs 4. For this purpose, a corresponding drive is provided as a clamping device 34 in the region of the longitudinal guide 6, via which the centering pins 30, which are not displaceable in the axial direction on the support arms 5, are inserted into the winding core

4 are pressed. By dispensing with a winding shaft extending over the entire width of the material webs 7, the sleeves 4 can be manipulated extremely quickly and thus the cycle time for the completion of a film winding can be minimized.

In Fig. 5a in the middle in the illustration and right winding cores 4 as a shaftless storage of the provided as hubs 4 sleeves by the clamping between each two provided on the support arms 5 bearings 5 'can be seen. In the embodiment shown is in the support arms

5 - apart from the outer support arms 5 - each one of the support arms 5 projecting on both sides Quill 24 is provided, between which the sleeves 4 are clamped. The sleeves 24 projecting on both sides in this case have a common bearing 25 in each case in a support arm 5. Only the outer support arms 5 have only one-sided inwardly directed quill 24.

In addition, an alternative mounting of the hubs 4 with a winding shaft 26 is shown in Fig. 5a in the left winding core 4 in the illustration. The winding shafts 26 are in this case inserted together with the sleeves 4 and removed and are each mounted at two bearing points 5 'in the support arms 5. The winding shafts 26 are in this case as well as in the axleless embodiment of FIG. 5 mounted on quills 24, which also achieved here for introducing the centering mandrels 30 in the hubs 4 by moving the support arms 5 in the axial direction 4 'of the hubs 4 using the jig 34 becomes.

For the rotary drive of the hubs 4, a rotary motor 27 is provided. hen, over which in Fig. 5a left outside quill 24 is driven. In this case, the drive torque is transmitted through the frictional connection between quills 24 and the end faces of the seated on the quill sleeve 24 winding core 4 and propagates from one winding core 4 to the next. In the case of use of winding shafts 26, this connection can also be performed positively. The use of winding shafts 26 is particularly favorable for small winding core diameters of, for example, 1.5 inches (= 3.81 cm) and larger widths to increase the flexural rigidity of the winding tubes 4.

In Fig. 5b a space-saving design of double-acting sleeves 24 is shown. In Fig. 5b, the sleeves 24 are shown in their extended state, in each of which a winding core 4 is clamped between two support arms 5. The sleeves 24 each include a bearing 31 which carries a centering mandrel 30 rotatably movable on the outer ring for receiving the hubs 4. The connected to the inner ring of the bearing 30 central part 32 is designed as a pneumatic piston, so that the centering mandrels 30 extend when introducing compressed air via an air supply duct 33; a piston rod is therefore not necessary. Of course, the sleeves 24 can also be designed only on one side.

FIG. 5c shows in detail the quill 24 designed as a piston rod-less pneumatic cylinder in the retracted position. In this retracted position thus the hubs 4 can be inserted or the finished film windings 17 are removed with its winding core 4. Furthermore, in FIG. 5c, a positive connection 38 can be seen by means of a tongue and groove connection between the two centering pins 30. With the aid of the positive connection 38, the two Zentierdorne 30 rotatably connected to each other, so that in a simple way, the introduced via a rotary motor 37 torque can be transferred, and thus the other hubs 4 can be dragged.

In Fig. 5d, in turn, an embodiment is shown in which each winding tube 4 is mounted in its own left and right arm 5. These are one-sided, movable sleeves 24 are provided, which are extendable in the manner described in connection with FIGS. 5b and 5c function.

This Ausführunsbeispiel also allows in particular the use of a structurally simple quill clamping device with a conventional Kurzhubpullatikzylinder 33 with a piston rod 33 '. The piston rod 33 'is centered in the support arm 5. The piston rod 33 'is connected to the centering part 35, which does not rotate and the inner ring of the bearing 31 receives.

6, an alternative embodiment of the winding device 1 is shown, in which three receiving devices 3 are provided, each with at least three support arms 5, wherein the receiving devices 3 are arranged on the support device 2 offset by 120 ° to each other.

In comparison to the exemplary embodiment shown in FIGS. 1 to 4, the loading or unloading station 16 is divided into an unloading station 16 'and a loading station 16 "offset by 120 ° thereto. Here too, the receiving devices 3 are each assigned a contact roller 13, via which in the unloading position 16, in particular the drive of the winding cores 4 for the final winding of the end sections of the material webs 7 and in the loading position, in particular a pre-acceleration of the hubs 4 to the winding speed in the winding position 15th can be done.

In Fig. 7, a winding device 1 is shown, in which between the receiving devices 3, an intermediate receptacle 36 is provided, in which an intermediate step, a winding of the total material web 8 on a winding shaft 37 or over the entire width of the webs 7 extending sleeve 4 are performed can. With the help of this intermediate receptacle 36 can, without reducing the speed of the take-up device 1, the distance of the support arms 5 are adjusted to each other and thus a conversion or adaptation of the width of the webs 7 can be achieved. Of course, unlike in the embodiment shown, the material webs 7 may also have a different width, as by the mobility of the support arms 5 can be adjusted in the linear guide 6 in a simple manner. Such intermediate receptacle 36 can also be used to start a film extrusion line when the take-up device 1 starts up inline with the extrusion line.

The number of winding cores 4 can of course vary as desired. It is only essential that with regard to a simple, fast as possible manipulation of the individual hubs 4, the hubs 4 are each rotatably mounted in two adjacent the hubs 4 arranged bearing points 5 '.

Claims

Claims:

1. Apparatus (1) for winding at least two material webs (7), in particular of film webs, with at least two receiving devices (3), for rotatably supporting in each case at least one winding core (4), wherein the receiving devices

(3) between a winding position (15) for winding at least one material web (7) on the winding core (4) and a Entbzw. Loading position (16, 16 ', 16' ') for removing at least one finished wound winding core (17) or for feeding at least one empty winding core (4) can be transferred, and for simultaneously winding the material webs (7) on separate hubs (4) at least two hubs (4) in the receiving device (3) are arranged coaxially, wherein the hubs

(4) in each case in two adjacent to the respective winding core (4) provided for bearing points (5 ') are rotatably mounted, characterized in that the receiving device (3) has at least three support arms (5), wherein each between two support arms (5) has a winding core (4) is stored.

2. Apparatus according to claim 1, characterized in that the receiving devices (3) for transferring between the winding position (15) and the unloading or loading position (16, 16 ', 16' ') on a common rotatably mounted support device (2). are attached.

3. Apparatus according to claim 1 or 2, characterized in that each winding core (4) in two exclusively for the storage of a single winding core (4) provided support arms (5) is mounted.

4. Device according to one of claims 1 to 3, characterized in that as winding cores (4) cylindrical sleeves are provided.

5. Apparatus according to claim 4, characterized in that the support arms (5) for clamping in each case a sleeve (4) between two support arms in the interior of the sleeve (4) extending or retractable quill (24).

6. Apparatus according to claim 5, characterized in that a sleeve (24), in particular the quill (24) of an outer support arm (5), a rotary drive (27) is associated.

7. Apparatus according to claim 5 or 6, characterized in that at least two centrally arranged support arms (5) each have a both sides of the support arm (5) projecting or retractable quill (24).

8. Device according to one of claims 5 to 7, characterized in that the sleeve (24) has a rotatably mounted centering pin (30) which is displaceably mounted in the axial direction of the hubs (4), wherein the centering pin (30) via a pneumatic Drive (33) can be transferred to the extended position.

9. Apparatus according to claim 8, characterized in that the centering pin (30) on the outer ring of a pivot bearing (31) is fixed, wherein on the rotatably mounted inner ring of the pivot bearing (31) designed as a pneumatic piston central plate (32) is fixed.

10. Device according to one of claims 7 to 9, characterized in that on both sides of a support arm (5) projecting sleeves (24) or their extendable centering mandrels (30) rotatably, in particular form-fitting manner, are interconnected.

11. Device according to one of claims 1 to 10, characterized in that the sleeves (4) are each mounted with a separate winding shaft (26) between two support arms (5).

12. Device according to one of claims 1 to 11, characterized in that the support arms (5) in the axial direction (4 ') of the hubs (4) are displaceably mounted.

13. The apparatus according to claim 12, characterized in that for displacing and fixing the support arms (5) in a longitudinal guide (6) the support arms (5) are each assigned a displacement - or clamping device (34).

14. Device according to one of claims 1 to 13, characterized in that each receiving device (3) is associated with a on the support device (2) pivotally mounted contact roller (13).

15. The apparatus according to claim 14, characterized in that on the support device (2) mounted contact roller (13) is driven.

16. The device according to one of claims 1 to 15, characterized in that in the winding position (15) located receiving device is assigned to a stationary axis (12 ') pivotally mounted contact roller (12).

17. The apparatus according to claim 16, characterized in that about a stationary axis (12 ') pivotable contact roller (12) is driven.

18. Device according to one of claims 1 to 17, characterized in that in the winding position (15) located receiving device (3) is associated with a cutting device (20) for cutting the material webs (7) transversely to the advance direction.

19. Device according to one of claims 1 to 18, characterized in that in the unloading or loading position (16, 16 ', 16' ') located receiving device (3) has a height-adjustable table (22) with a tiltable receiving plate (23 ) assigned.

20. Device according to one of claims 1 to 19, characterized in that in the unloading or loading position (16, 16 ', 16' ') located receiving device (3) is associated with a winding core magazine (18).

21. Device according to one of claims 1 to 20, characterized in that between two receiving devices (3) an intermediate receptacle (26) with a at least over the entire width of the material webs (7) extending winding shaft (37) or a clamping device for clamping a single over the entire width of the material webs (7) extending winding core (4) is provided.