EP2803609A1 - Machine for winding sheet-like materials - Google Patents

Abstract

The invention relates to a machine (1) for winding web-shaped materials (17) onto a winding tube (6) for forming a winding roll (37), having a winding shaft support (3) pivotally mounted on a frame (2) of the winding machine (1). is mounted, with a to the winding roller (37) can be pressed pressure roller (11) and with a guide roller (16), with the interposition of the web-like materials (17) to the pressure roller (11) can be applied.

To increase the winding quality, the pressure roller (11) at one end (10) of a Andrückarms (9) and the guide roller (16) at one end (15) of a guide arm (12) rotatably mounted, which are each pivotally mounted, wherein the Andrückarm (9) between the winding shaft support (3) and the guide arm (12) is arranged.

Description

The invention relates to a machine for winding web-like materials, on a winding tube for forming a winding roll, with a winding shaft support, which is pivotally mounted on a frame of the winding machine, with a pressure roller pressable to the winding roller and with a guide roller, with the interposition of the material can be applied to the pressure roller. With the reciprocating displacement of the supplied materials, the web can be wound up as a spool.

Winding machines are used for winding web-shaped materials or a material web for intermediate storage or at the end of a production or processing process. The width of the wound rolls thus produced is dependent on the desired purpose and can be adjusted for example by the use of slitters. As a result, it is also possible to produce two or more narrower winding rolls from a wide material web.

In order to produce high-quality bobbins, it is sometimes necessary to wind the web with the most uniform possible tension on the winding tube.

Furthermore, the simplest possible, faster replacement of the finished wound bobbins should be possible to replace them with a new winding tube.

The invention is an object of the invention to provide a machine for winding web-like materials, which eliminates the disadvantages of the prior art. In particular, high-quality bobbins should be produced and a particular automatic replacement of the finished bobbins are made possible by a new winding tube.

According to the invention this object is achieved by a machine having the features of claim 1. Advantageous embodiments can be found in the dependent claims 2 to 14.

In a machine for winding strip-shaped materials, in particular a nonwoven web, on a winding tube for forming a winding roll, with a winding shaft support which is pivotally mounted on a frame of the winding machine, with a pressure roller pressable to the winding roller and with a guide roller, the interposition of the Materials to the pressure roller can be applied, the invention provides that the pressure roller are rotatably mounted at one end of a Andrückarms and the guide roller at one end of a guide arm, which are each pivotally mounted on the frame, wherein the pressure arm between the winding shaft support and the guide arm is arranged ,

With this configuration, an adjustable contact pressure can be formed not only between the pressure roller and the forming roll, but also between the last guide roller and the pressure roller. Accordingly, the sheet-like materials are wound on the winding roll with a uniform tension. Voltage fluctuations occurring in the web running direction before the last guide roll can hardly propagate through the two nips. Advantageously, the winding shaft support at least one laterally in the winding tube insertable winding shaft. The winding shaft can then be retracted laterally into the new winding tube, which has been prepositioned accordingly, and centered during clamping. During the winding process, at least one end of the winding shaft is supported by the winding shaft support.

Preferably, the winding shaft support is arranged below the pressure arm and guide arm. This arrangement allows a relatively simple removal of the finished wound reel, in which this example moved laterally with the frame and positioned over a discharge table. By means of the unloading table, the roller can then be lifted somewhat, so that the frame can be moved back to receive a new winding tube.

Swiveling axes of pressure arm, guide arm and winding shaft support can run parallel to each other. In a pivoting movement then the relative position in the axial direction remains unchanged, while only the mutual distance is increased or decreased.

The frame of the winding machine may preferably have at least one bottom-side damping element.

Preferably, a hinge roller is arranged in alignment with the pivot axis of the guide arm. The joint roller also represents a guide roller, wherein the arrangement of the joint roller in alignment with the pivot axis of the guide arm during pivoting of the guide arm but no large differences in tension on the web-like materials are exercised. Rather, a distance between the joint roller and the guide roller remains constant even during pivoting of the guide arm, so that possible differences in length limit only minor change in the wrap angle of the joint roller. It is achieved as a continuous promotion, with as possible no stresses are introduced into the materials. This gives consistent roll widths and one Strain of the materials kept low, so that a width and a thickness of the materials remain constant.

Optionally, further guide rollers may be provided on the guide arm between the articulated roller and the guide roller, in order to achieve reliable conveyance of the sheet-like materials. As a result, a greater length of the guide arm can be realized or a configuration in which the guide arm extends at an angle.

Preferably, the winding device has a feed device, which in particular has a plurality of guide rollers, through which the web-like materials are guided in a serpentine manner. In this case, the feed device can be arranged, for example, in the direction of gravity above the guide arm. The feeder is attached, for example, on the frame of the winding machine or held on an additional frame.

The feeding device is used before the actual winding process to align the web-like materials and to calm the web run. In this case, voltage fluctuations in the material web are reduced by the serpentine guidance of the web-like materials in the feed device and thus improved winding results are obtained.

By arranging the feed device above the guide arm results on the one hand a space-saving arrangement, on the other hand also always a relatively large wrap angle of the articulated roller, so that the web-like materials even during pivoting of the guide arm. due to the increasing roll diameter are guided safely around the articulated roller.

In a preferred embodiment, a cross-cutting device is arranged at the end of the guide arm, which is pivotable in a space between the guide roller and the pressure roller. With the help of the cross cutting device, the web-like materials can be severed when the winding roll is finished is. This then allows automatic replacement of the winding roll by a new winding tube.

In particular, the cross-cutting device is arranged at the end of the guide arm. The space required for the pivotal movement of the cross-cutting device between the guide roller and the pressure roller results from a corresponding pivoting of the guide arm and optionally the Andrückarmes. During winding while the cross-cutting device is pivoted so, ie in particular moved away from the winding roll that the space between the pressure roller and the guide roller can be closed. A use of the machine according to the invention as a so-called doctor machine is possible, with the cross-cutting device defective material can be cut away.

It is particularly preferred that the cross-cutting device is designed as a cross cutter with an upper blade and a lower blade and in particular in the transverse direction is controlled movable. As a result, the cross-cutting device can be designed to be relatively small and, by moving in the transverse direction, the web-like materials at one edge begin to cut through to the other, opposite edge. In this case, both the upper blade and the lower blade or both can be driven. This allows a clean cut. For the movement, the cross-cutting device is displaceably mounted, for example, on a cross rail, which runs parallel to the guide roller and is arranged at the same end of the guide arm as this. The controlled transverse movement of the cross-cutting device can be realized for example by means of a linear electric motor or a pneumatic drive, but also by other solutions.

In a further preferred embodiment, the winding machine has a winding aid, which can be laid partially around a circumference of the winding tube and comprises at least one element which can be moved in the circumferential direction. By this configuration, the problem is solved that a new end of the web-like materials must be wound around the still empty winding tube. The winding tube is usually in rotation offset to wind up the web-like materials. For this, however, it is necessary that initially some layers of the web-like materials are wrapped around the winding tube. As a rule, this is done by manually guiding the web-like materials around the winding tube, the beginning of the material web being adhesively attached to the winding tube before the actual winding process is started. In contrast, the novel winding aid allows an automated start of the winding process, in which it presses the beginning of the web-like materials against the winding tube over the element which can be moved in the circumferential direction and thereby moves around the circumference. The winding tube itself can be driven to simplify the beginning of the winding with the same peripheral speed, so that a safe investment of the beginning of the web-like materials takes place on the winding tube. Once a sufficient number of layers of web-like materials are wound onto the winding tube, the winding aid can be removed and the further winding process can be continued by rotation of the winding tube until the winding roll has reached the desired diameter and is replaced by a new winding tube.

It is particularly preferred that the element of the winding tube is designed as a belt drive. A tape drive can be relatively easily adapted to the shape of the winding tube. In this case, a relatively large, in particular flat contact between the element and the web-like materials can be produced, so that sufficiently large forces can be transmitted to take away the web-like materials with the movement of the element. The tape drive may optionally comprise a combination of several bands and pulleys.

As an alternative to a tape drive, the winding aid can also have a plurality of elements in the form of drivable rollers or rollers, which are distributed over the circumference of the winding tube and thus allow the winding of a new material web start without manual influence. In particular, an adhesion of the material web start to the winding tube is then not required.

Preferably, the winding aid has a substantially U-shaped cross-section. With the legs of the U can while the winding tube are encompassed and the beginning the web-shaped materials are pressed over a large area of the winding tube. In particular, in an embodiment as a tape drive while the element which is formed by the circumferential band of the tape drive, a certain elasticity, so that the winding tube can be pushed so to speak with the underlying sheet-like materials in the tape. Thus, a firm investment of the beginning of the web-like materials is achieved on the winding tube and a safe takeaway.

Preferably, the winding aid is pivotally mounted on the frame. The winding aid can then be brought by a simple pivoting movement, for example by means of a pivoting arm, from a rest position to a start position in which it surrounds the winding tube. In this case, the winding aid is guided by the pivoting movement on a circular arc that allows a simple one-dimensional pivotal movement without complex positioning.

In a further preferred embodiment, the winding machine has a sleeve magazine with a feeder for feeding individual winding tubes to the winding shaft support, wherein the feeder is designed in particular as a pivoting arm. In the sleeve magazine empty cores can be stored in order to allow a quick replacement of the finished wound reel by a new winding tube. Using the feeder, this exchange can then be automated. In one embodiment of the feeder as a pivoting arm while the degrees of freedom of a possible movement are kept low, thus enabling easy positioning. Apart from its pivotal mounting of the feeder then need have no movable elements.

It is particularly preferred that the sleeve magazine has at least one inclined bearing surface for the winding tubes, which are receivable at a lower end of the bearing surface of the feeder. To move the cores in the direction of feeder so the motion of gravity is utilized. In this case, a separation of the cores takes place in order to achieve a takeover of a single winding tube without malfunction.

It is particularly preferred that the sleeve magazine has a second inclined bearing surface, which is arranged above the first bearing surface and is inclined in opposite directions, so that winding tubes roll by the force of gravity from the second bearing surface on the first bearing surface. As a result, it is possible to accommodate relatively many cores in a relatively small space. In a corresponding zigzag arrangement, further bearing surfaces can be provided to accommodate a corresponding number of cores. Also, there is an automatic movement of the cores due to the effect of gravity in the direction of the end of the lowermost bearing surface, where in each case a single winding tube can be absorbed by the feeder.

A particularly space-saving design is achieved in that the sleeve magazine is arranged in the direction of gravity above the winding shaft support. Above the winding shaft support is usually sufficient space available to accommodate a larger sleeve magazine. In addition, the effect of gravity to generate the movement of the cores can be well exploited.

Preferably, the feeder for receiving the winding tube on a receiving element, which in particular has an L-shaped or V-shaped cross-section. The receiving element is formed in particular by two plates arranged at an angle to one another. In such a receiving element, the cores can be safely received without mechanically moving components are required. In this case, a secure position of the winding tube is ensured in particular by the fact that the legs of the receiving element extend at an angle to the vertical and, for example, at the end of the pivoting movement, when the winding tube is transferred to the winding shaft support, then the leg lying below still slightly inclined or horizontal ,

The receiving element is preferably arranged at a free end of the feeder, wherein the feeder is pivotally mounted at its opposite end. The pivotal mounting of the feeder can be, for example done on the frame of the winding machine, but also in an independent floor element. The length of the feeder then determines the radius of a circular arc on which the winding tube is moved between the sleeve magazine and the winding shaft support.

In a preferred embodiment, the sleeve magazine on a singler. The separator is assigned in particular to the lower end of the storage area. By the separator is ensured that only one winding tube is taken from the feeder and that no winding tube accidentally falls out of the sleeve magazine.

At the feeder a securing element can be provided in the region of the receiving element, which prevents falling out of the winding tube from the receiving element. This securing element may optionally be pivotable to be applied to the winding tube after inserting the new winding tube in the receiving element.

Fig. 1

eine Seitenansicht einer Wickelmaschine vor Beginn des Wickelvorgangs,

Fig. 2

die Wickelmaschine bei Beginn des Wickelvorgangs,

Fig. 3

die Wickelmaschine während des Wickelvorgangs,

Fig. 4

die Wickelmaschine beim Beenden des Wickelvorgangs.

The invention will be described in more detail below with reference to a preferred embodiment in conjunction with the drawings. Hierin show in a schematic view:

Fig. 1

a side view of a winding machine before the start of the winding process,

Fig. 2

the winding machine at the beginning of the winding process,

Fig. 3

the winding machine during the winding process,

Fig. 4

the winding machine at the end of the winding process.

In FIG. 1 is a machine 1 for winding web-like materials, which are referred to below as a material web, shown having a pivotally mounted on a frame 2 winding shaft support 3, which at its 4 has a receptacle 5 for a winding tube 6. The winding tube 6, which in the illustration according to FIG. 1 has just been passed from a feeder 7 to the winding shaft support 3 and thus was transferred from the receiving element 8 of the feeder 7 in the receptacle 5 of the winding shaft support 3 is rotatable and in particular driven to the winding shaft support 3 is stored.

The winding shaft support 3 is pivotally mounted and movable in the cross-machine direction and has a retractable in the winding tube winding shaft. After the new winding tube has been brought by lateral movement of the frame 2 with the winding shaft support and pivoting of the feeder 7 from an upper to a lower position to a loading position laterally next to the winding shaft support, this in turn moves laterally, for example, to the left. As a result, the winding shaft is introduced into the winding tube and clamped to the winding tube, whereby at the same time takes place centering of the new winding tube. Subsequently, the winding shaft support is laterally moved back, for example, to the right, so that the winding tube is in the winding position and a new winding process can begin. Simultaneously or before the feeder is pivoted back. The winding process then starts automatically. For lateral movement, for example, the frame 2 can be arranged movable relative to the frame 14.

Above the winding shaft support 3, a pressing arm 9 is pivotally mounted on the frame 2, which carries a pressure roller 11 at its free end 10. In this case, the pressing arm 9 is shown in its upper position, in which the pressure roller 11 is widely spaced from the winding tube 6. Above the Andrückarms 9 is a guide arm 12 which is pivotally mounted about a pivot axis 13 on a frame 14. The frame 14 may optionally also be integrally connected to the frame 2.

At a free end 15, a guide roller 16 is arranged, via which a material web 17 is guided such that it can be passed between the guide roller 16 and the pressure roller 11 and passed to the winding tube.

For safe guidance of the material web 17 further guide rollers 18, 19 are arranged on the guide arm 12. A joint roller 20 is provided in alignment with the pivot axis 13, around which the material web 17 is guided, in order to be guided by a feeder unit 21 via the guide rollers 18, 19 and the guide roller 16 to the winding tube 6. In the feeder a plurality of guide rollers 22, 23, 24, 25 are provided, around which the material web 17 is guided serpentine. In the web running direction in front of the winding machine 1, for example, a longitudinal cutting device is arranged, from which the material web 17 is guided in individual strips to winding machines and via corresponding feeders 21.

The feed device 21 is arranged above the winding shaft support 3, so that the material web 17 is supplied from above. This represents a relatively space-saving design, wherein the space above the guide carrier is used.

At the free end 15 of the guide arm 12 is a transverse cutting device 26 which is pivotally mounted at the free end 15. In the position shown in accordance with FIG. 1 the cross cutting device 26 is not active. Therefore, it is pivoted in a direction away from the winding tube 6. To activate the cross-cutting device 26, this is then pivoted into a space between the guide roller 16 and pressure roller 11. This will be related below FIG. 4 described.

In this exemplary embodiment, the cross-cutting device 26 has at least one upper blade 27 and one lower blade 28, which are designed as roller cutting blades. In principle, the cross-cutting device could also have a different structure and, for example, blades, Kappmesser, have a hot wire or the like as a cutting tool.

By moving the cross-cutting device 26 in the transverse direction to the web, so in the illustration after FIG. 1 into the drawing plane or out of the plane so the web can be divided and a new web start be generated. Above the feeder 7 a winding tube magazine 29 is arranged, which has two inclined bearing surfaces 30, 31, on which a plurality of winding tubes are arranged. These can be moved by gravity in the direction of a lower end 32 of the lower bearing surface 30. Falling out of the cores at the lower end 32 is prevented by a separator 33.

After, as in FIG. 1 shown, a new winding tube 6 has been transferred to the winding shaft support 3, a new winding process can automatically begin. This is in FIG. 2 shown. In this case, a beginning 34 of the material web 17 has been created by pivoting guide arm 12 and pressing arm 9 to the winding tube 6. In order to be able to wind around the material web beginning 34 around the winding tube 6, a winding aid 35, which has a substantially U-shaped cross-section, has been guided around the winding tube 6. The winding aid 35 has a moving element 36, which is designed as a circulating guided band. By means of the element 36, the end 34 of the material web 17 is pressed against the winding tube. In this case, the element 36 is moved in the circumferential direction of the winding tube. At the same time, the winding tube 6 is set in rotation. As a result, the beginning 34 of the material web 17 is wound around the winding tube 6. As soon as a sufficient number of layers of the material web are wound around the winding tube 6, the winding aid 35 is moved away from the winding tube 6, for example pivoted away and thus releases the winding tube 6 again. By rotation of the winding tube 6 then takes place a further winding of the material web 17 and thus forming a winding roll. This is in FIG. 3 shown.

FIG. 4 now shows the end of the winding process with a completed winding roller 37. The winding roller 37 has reached a diameter which makes an exchange of the winding tube 6 is required. An end 38 is cut by means of the cross cutting device 26 by the cross cutting device 26 is guided transversely over the material web 17, wherein the material web from one side of the lower blade 28 and from the opposite side of the upper blade 27 is applied. Thus, the web 17 is severed clean. Before the beginning of the cutting process was the cross cutting device 26 has been pivoted from its rest position, which it had taken vohrer, in a cutting position, wherein it has been led into a space between the guide roller 16 and the pressure roller 11. For this, the guide arm 12 has been pivoted away from the pressing arm 9. Also, the pressure roller 11 was brought out of contact with the winding roller 37.

The winding machine according to the invention allows a winding of the material web, in particular a nonwoven web, on a winding tube with a constant winding tension. The additional embodiments, in particular the provision of a winding aid and a cross-cutting device and a sleeve magazine allow a fully automatic sleeve replacement with new winding a material web end, without a manual intervention by an operator is required. In particular, the attachment of an adhesive tape to the winding tube can be dispensed with as a take-up aid for the new material web end.

In combination with an automated disposal of the winding rolls upon reaching the desired roll diameter or the desired run length of the winding roll is a fully automated process. The finished wound roll is stopped, severed the web with the cross-cutting device and the winding roller, in particular in the cross-machine direction, removed from the machine. Subsequently, the new winding tube is brought into position and prepared the new material web start using the winding aid without the use of adhesive tapes or other adhesive devices for the new beginning of winding. The entire winding process is thus independent.

With the aid of the device according to the invention, not only is a higher winding quality achieved, but also a fully automatic operation with very short changeover times is obtained.

The invention is not limited to one of the above-described embodiments, but can be modified in many ways.

All of the claims, the description and the drawings resulting features and advantages, including design details, spatial arrangements and method steps may be essential to the invention both in itself and in various combinations.

LIST OF REFERENCE NUMBERS LIST OF REFERENCE NUMBERS

1.

winder

Second

frame

Third

Winding shaft support

4th

free end

5th

admission

6th

mandrel

7th

feeder

8th.

receiving element

9th

pressing arm

10th

free end

11th

pressure roller

12th

guide

13th

swivel axis

14th

frame

15th

free end

16th

guide roller

17th

web

18th

guide roller

19th

guide roller

20th

joint roller

21st

feeding

22nd

guide rollers

23rd

guide rollers

24th

guide rollers

25th

guide rollers

26th

Cross-cutting device

27th

upper blade

28th

lower blade

29th

Winding tube magazine

30th

storage area

31st

storage area

32nd

lower end

33rd

separating

34th

Beginning

35th

winding aid

36th

element

37th

reel

38th

Web end

Claims (14)

Machine (1) for winding web-like materials (17) onto a winding sleeve (6) for forming a winding roll (37), having a winding shaft support (3), which is mounted pivotably on a frame (2) of the winding machine (1). with a pressure roller (37) which can be pressed against the winding roller (11) and with a guide roller (16) which can be placed on the pressure roller (11) with the interposition of the web-like materials (17), characterized in that the pressure roller (11) on a End (10) of a Andrückarms (9) and the guide roller (16) at one end (15) of a guide arm (12) are rotatably mounted, which are each pivotally mounted, wherein the Andrückarm (9) between the winding shaft support (3) and the Guide arm (12) is arranged. Machine according to claim 1, characterized in that the winding shaft support (3) has at least one laterally in the winding tube (6) insertable winding shaft. Machine according to claim 1 or 2, characterized in that a joint roller (20) is arranged in alignment with the pivot axis (13) of the guide arm (12). Machine according to one of the preceding claims, characterized in that arranged at the end (15) of the guide arm (12) is a transverse cutting device (26) which is pivotable into a space between the guide roller (16) and the pressure roller (11). Machine according to claim 3, characterized in that the cross cutting device (26) is designed as a cross cutter with an upper blade (27) and a lower blade (28) and in particular in the transverse direction is controlled movable. Machine according to one of the preceding claims, characterized in that it comprises a winding aid (35) which is partially laid around a circumference of the winding tube (6) and at least one element driven in the circumferential direction (36). Machine according to claim 6, characterized in that the element (36) is designed as a belt drive. Machine according to claim 6, characterized in that the winding aid (35) has a plurality of roller-shaped elements which are distributed over the circumference of the winding tube (6) can be applied. Machine according to one of claims 6 to 8, characterized in that the winding aid (35) has a substantially U-shaped cross-section. Machine according to one of claims 6 to 9, characterized in that the winding aid (35) is pivotally mounted on the frame (2). Machine according to one of the preceding claims, characterized in that it comprises a sleeve magazine (29) with a feeder (7) for feeding individual winding tubes to the winding shaft support (3), wherein the feeder (7) is in particular designed as a pivoting arm. Machine according to claim 11, characterized in that the tube hopper (29) has at least one inclined bearing surface (30) for the winding cores, on a lower (32) end of the bearing surface (30) of the feeder (7) can be accommodated. Machine according to claim 11 or 12, characterized in that the feeder (7) for receiving the winding tube (6) has a receiving element (8), which in particular has an L-shaped cross section. Machine according to one of claims 11 to 13, characterized in that the sleeve magazine (29) has a singler (33).

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