EP2862827A1 - Winding device with sliding segments - Google Patents

Abstract

The invention relates to a winding device (1), in particular for web and / or strip-shaped material, comprising winding arms (2, 3) with at least one on at least one axis (10, 11) mounted winding system (4, 5) or (24 , 25), wherein the at least one winding system (4, 5) or (24, 25) of at least two movably mounted segments (6) or (26) is constructed.

Description

The invention relates to a winding device with displaceable segments according to the features of the preamble of claim 1.

The DE 189 966 U discloses a device for axisless winding of paper, cloth and plastic sheets. The device has a cone and a counter-cone, wherein a cone has spring-loaded clamping elements.

The DE 224 365 A discloses a chuck, in particular a chuck for use with roll cores, for winding and unwinding paper and other webs. In one embodiment shown, a hexagonal shaft is conical on a section and cylindrically shaped on a section for ease of manufacture. Six segments are seated on it, held together by tension springs located in grooves. With the front sections, the segments form a truncated cone, which facilitates the insertion of the sleeve in a roll core. In their furthest advanced position, that is, in their position smallest diameter, these front portions of the segments abut against a frusto-conical cone. The cone merely facilitates the insertion of the sleeve in its contracted state into a roller core.

The DE 44 40 61 A1 discloses a winding station for winding strips of material. The winding station has a doppelkonisches Hemmer element for winding up material strips. The device consists of a flange cone and a cone, which are separable from each other.

The DE 197 19 595 C2 discloses a clamping unit for a roller shaft carrying a roller having a fixed, an abutment for the roller forming clamping cone and a displaceable towards the fixed clamping cone clamping cone, which is displaceably mounted on a displaceable on the winding shaft body in Wickeiwellenrichtung and by pressurizing a pressure chamber in Direction to the fixed clamping body is movable.

The DE 198 11 397 C1 discloses a device for covering a workpiece with a brittle endless fiber coated with matrix material and the fiber-reinforced tube. The fiber-optic device shown has a holding device with a lower cone and an upper cone for clamping holding a rotationally symmetrical tubular workpiece.

The DE 101 53 819 A1 discloses an apparatus and method for winding protective sheets in the form of a coreless roll. The winding shaft includes at least two pipe segments, which define a circumferential gap and a radially inner interior and which are radially displaceable to each other and wherein the winding shaft further includes at least one frontally in the interior repeated on and executable cone, which causes the radial displacement of the pipe segments wherein in the circumferential space between the pipe segments each support profiles are arranged, which are also radially inwardly and outwardly movable over at least one cone.

The known from the prior art winding devices with cone-shaped winding elements have the significant disadvantage that after winding the removal of wound winding material difficult or often no longer possible because it lays very often firmly on the respective cone and then a relative movement between Cone and winding material is hardly or even no longer possible.

The invention has for its object to realize a winding device with Wickelementen, in which the removal of winding material can be made easier.

This object is solved by the features of claim 1.

According to the invention, the winding device consists of at least one winding arm with a winding system, which in turn has at least two conical (obliquely) relative to its longitudinal axis slidable segments. The at least two or more segments are designed as a set so that they each have a conical or a cylindrical shell geometry together. The segments are slidably mounted on guides which are conically arranged with respect to one another on their longitudinal or bearing axis, wherein after release of the displaceability, e.g. when moving apart of winding arms of the winding device, impanding (move towards each other, so that the shell diameter is reduced) can. In this case, the covering diameter formed by the respective impanding segment set decreases, so that the winding or the winding material thus comes loose from the at least one winding system and can be removed.

Also, a sleeve for receiving winding material can be positioned between the equipped with movable segments winding systems. The removal of the sleeve after the winding of winding material is facilitated by the sliding cone segments.

The segments are for example arranged on guides on an underlying truncated cone, that results in the smallest possible angle at a large stroke. The guides for the segments may be formed, for example, as ball-bearing guides or sliding guides.

The segments may be in operative connection with the guides via adapters designed as sliders. Also, the introduction of a support plate between the segments and the adapters is conceivable. Furthermore, it is conceivable to form the guide system integrally with the segments.

In order to avoid the penetration of winding material between the segments, steps with overlaps may be provided in the region between the frontally adjacent segments. It is advantageous that due to the mobility of the segments for diameter reduction no additional force actuations or energy stores, such as e.g. Springs are required in the device according to the invention.

The winding device according to the invention is based on a substructure, which may be connected to a foundation. The substructure serves as a carrier for a winding drive as well as for the linearly movable winding arms. In the winding arms axles are mounted, each carrying a flanged wheel and a base body for receiving mutually conically mounted segments. Flange washers and base bodies are connected to the axles in a rotationally stable manner. To move the winding arms in winding and removal position guides are provided on the base. Sliders, which serve as a carrier for the winding arms, engage in the guides.

The bearings of the segments must be arranged on conical (obliquely) arranged reference axes, for example, mounting surfaces. The displaceably arranged segments can be constituted in sets either a conical or cylindrical outer surface. The winding device can thus be equipped either with cone segments or with cylinder segments, for example. With a cylindrical outer surface there are further possibilities of application for clamping tasks, e.g. the clamping of sleeves in winding stations, edge strip winders or edge trimmers.

In a further development of the invention, it is provided that the winding device, in particular for web and / or strip-shaped material, at least two opposite winding arms having at least one mounted on at least one winding system, wherein the at least one winding system of at least two movably mounted segments is constructed. The segments may be formed according to the lateral surface formed by them as a cone or cylinder segments. Together, the segments of a winding system form either a cone segment set or a cylinder segment set. By the movably mounted segments a reduction of the cladding diameter is made possible and it can be released the winding material after the winding process, wherein the strong adhesion of the winding material on the cone or cylinder segment set is reduced only by the change in diameter or completely eliminated.

Furthermore, it is inventively provided that the at least two movably mounted segments are mounted linearly movable on guides. Through the use of linear guides, the movably mounted cone segments can be moved specifically. It is important that the segments initially remain axially unchanged in their position to the winding material and the axes on which they are stored, are moved away from each other via obliquely arranged guides, so that the shell diameter of the segments decreases. After this reduction in diameter, the winding system can be facilitated from the interior of the winding material as a result of the release of the winding material, that is moved without effort and without damage.

Furthermore, it is inventively provided that the guides are designed as ball-bearing guides or sliding guides. Ball bearing guides are highly precise and smooth. Slideways are inexpensive. Instead of ball-bearing guides can be used with the same advantages also roller bearings.

Furthermore, it is provided according to the invention that the segments have frontally on claws and recesses, which engage in the contracted state of the winding device into one another. This prevents material from entering between two sets of segments. Also, this can be done by a winding system by the other winding system.

Furthermore, it is provided according to the invention that the segments are operatively connected via adapters or via a carrier plate and an adapter with the guides. This creates a greater freedom in the design of the segments. Furthermore, it is inventively provided that the guide system is formed integrally with the segments. In an integral design, fewer parts are needed in the assembly of the winding device.

Furthermore, it is provided according to the invention that gradations with overlaps are provided between the segments in order to prevent the entry of winding material. The gradations virtually prevent or even prevent the entry of material or winding material between adjacent segments.

Further details of the invention will be explained in connection with the figures.

Fig. 1

eine erfindungsgemäße Wickelvorrichtung mit verschiebbaren Segmenten, hier als Konussegmente dargestellt,

Fig. 2

die hier mit Konussegmenten bestückten Wickelsysteme im zusammengefahrenen Zustand,

Fig. 3

eine Frontalansicht der Wickelvorrichtung gemäß der Fig. 1 und 2,

Fig. 4

die Konus-förmigen Wickelelemente im auseinandergefahrenen Zustand,

Fig. 5

eine Ansicht eines mit Konussegmenten bestückten Wickelsystems,

Fig. 6

eine Ansicht eines Wickelsystems unter Weglassen eines Konussegmentes,

Fig. 7

eine Ansicht eines Wickelsystems mit Konussegmenten in Wickelposition,

Fig. 8

eine Ansicht eines Wickelsystems mit Konussegmenten in Entnahmeposition für das Wickelgut,

Fig. 9

ein Wickelsystem mit Konussegmenten in Wickelposition mit Blick auf eine Linearführung,

Fig. 10

ein Wickelsystem mit Konussegmenten in Entnahmeposition mit Blick auf eine Linearführung,

Fig. 11

eine Frontalansicht eines weiteren Ausführungsbeispiels einer Wickelvorrichtung, ein Wickelsystem mit Zylindersegmenten,

Fig. 12

ein Wickelsystem mit Zylindersegmenten gemäß Fig. 11 im auseinandergefahrenen Zustand,

Fig. 13

ein Wickelsystem mit Zylindersegmenten in Wickelposition mit Blick auf eine Linearführung.

Show it:

Fig. 1

a winding device according to the invention with displaceable segments, shown here as cone segments,

Fig. 2

the winding systems equipped here with cone segments in the contracted state,

Fig. 3

a frontal view of the winding device according to the Fig. 1 and 2 .

Fig. 4

the cone-shaped winding elements in the extended state,

Fig. 5

a view of a equipped with cone segments winding system,

Fig. 6

a view of a winding system omitting a cone segment,

Fig. 7

a view of a winding system with cone segments in winding position,

Fig. 8

a view of a winding system with cone segments in removal position for the winding material,

Fig. 9

a winding system with cone segments in winding position with a view of a linear guide,

Fig. 10

a winding system with cone segments in removal position with a view of a linear guide,

Fig. 11

a front view of another embodiment of a winding device, a winding system with cylinder segments,

Fig. 12

a winding system with cylinder segments according to Fig. 11 in the disassembled state,

Fig. 13

a winding system with cylinder segments in winding position with a view of a linear guide.

In the following description of the figures, terms such as top, bottom, left, right, front, back, etc. refer exclusively to the example representation and position of the device and other elements selected in the respective figures. These terms are not intended to be limiting, that is to say that different positions and / or mirror-symmetrical design or the like may change these references.

For the same elements or functionally identical elements in the illustrated embodiments, the same reference numerals are given.

The Fig. 1 to 4 show a winding device 1 according to the invention with two winding arms 2, 3, which generally each have a winding system 4, 5 (hereinafter referred to specifically as cone 4, 5) have. Each winding system 4, 5 has at least two, preferably exactly three cone segments 6. These conical segments 6 are connected via adapters 7 with guides 8 by fastening means 9 (see Fig. 5 to 10 ). Each winding system 4, 5 is mounted on an axle 10, 11. On the Axles 10, 11 is each a flange 12, 13 adjacent to the respective winding system 4, 5 stored. Each wrapping arm 2, 3 is linearly movable on guides 14. On gliders 15, the winding arms 2, 3 are slidably mounted. The guides 15 are fixedly connected to a base 16. The substructure 16 is in turn fixedly connected to a foundation for the entire winding device 1. On the base 16, a drive 17 for the winding arms 2, 3 is arranged.

The operation of a first embodiment of the winding system having the plurality of cone segments 6 will be explained in more detail below.

In FIG. 1 it can be seen that the cone segments 6 each have mutually facing edges K. The mutually facing edges K form a gap SP. This gap is present when the two flanged wheels 12, 13 are spaced from each other so that between them the winding material is wound onto the cone segments 6. During the winding process, the gap SP between the cone segments 6 is maintained. Also in FIG. 6 is shown from another perspective, this embodiment. In addition to this is in FIG. 3 still shown that the cone segments 6 through the gap SP for the winding material an initial diameter (shown in FIG FIG. 3 at a certain point by the output diameter D1, also referred to as a sheath diameter). This means that the conical segments 6 each measured at a certain point for the winding always always have a certain initial diameter.

After the winding material has been wound, it may, as already described, occur that due to the clamping action of the winding material, this does not dissolve from the cone segments 6. This means that the problem arises here that when the flange 12, 13 are to be moved apart to remove the winding material, this divergence due to the clamping action of the winding material on the cone segments 6 is not possible because of the winding on the axially adjacent cone segments 6 extends.

For this purpose, it is inventively provided that the cone segments 6 are slidably mounted linearly with respect to their respective axis 10, 11 slidably. Because of this conical sliding bearing, it is possible only the cone segments 6 of the cone 4 (generally winding system 4) or only the cone segments 6 of the cone 5 (generally winding system 5) or all conical segments 6 of both the cone 4 and the cone 5 obliquely relative to and to move to the axis 10 and / or 11 and thereby reduce the gap SP. As a result, the respective outer diameter of the cone segments 6 decreases overall. While the jacket diameter is reduced, the cone segments 6 remain axially in their winding position, for which the axis 10 and / or 11 is axially displaced (pulled apart). The obliquely guided storage of the respective cone segment 6 on the associated axis 10 and / or 11 thereby causes the reduction of the cladding diameter. The axis 10 and / or 11 is pulled apart axially together with the associated flange 12 and / or 13.

As a result, the winding material can be released from the bearing surface on the cone segments 6. Thereafter, it is possible, the winding system 4, 5, in particular with the flanged wheels 12, 13, so far apart that the winding material located between them can be removed. That means facing FIG. 4 in that the outer diameter D2 of the cone segments 6 is opposite to the outer diameter D1 measured at the same position according to FIG FIGS. 1 to 3 minimized at least so slightly that the surface of the cone segments 6 dissolves from the wound winding material. In this case, the gap SP decreases, while otherwise the position of the winding system 4, 5 axially remains unchanged as long as the winding material adheres to the cone segments 6. In a particularly advantageous manner, the process of movement of the carrier or the axes 10, 11 and the winding arms 2, 3 for reducing the jacket diameter (and thus the release of the winding material) and the subsequent production and enlargement of the distance A is continuous. But it can also be discontinuous.

This situation is compared with the Figures 3 and 4 very recognizable. While in FIG. 3 the cone segments with their edges K to form the gap SP are arranged spaced from each other and the flanged wheels 12, 13 are at a distance to each other, so that between them the winding material can be wound onto the cone segments 6, according to FIG. 4 the axes 10 and 11 and respectively one the axes 10, 11 having carrier against the direction s by a predetermined path, for example, the distance x, axially away from each other, so that the edges K of the adjacent cone segments 6 due to their oblique guide on the associated axis Approach 10, 11. By this approach, the gap SP becomes FIG. 3 at least reduced so that the outer diameter D1 (measured at a certain point according to FIG. 3 ) to a diameter D2 according to FIG. 4 (measured at the same place) reduced. The same applies, of course, for the entire sheath diameter. This causes the surface of the cone segments 6 can lift off from the inner region of the wound winding material. As a result, the clamping of the winding material on the winding system is counteracted in an advantageous manner. Up to this point, the conical segments 6 do not change their axial position (that is, the front side still the winding systems 4, 5 still adjoin one another), because it is only the shell diameter is reduced. Only then is it possible without further ado, the axles 10, 11 together with the flanged wheels 12, 13 so far apart that increases the distance A to an extent that allows the winding material between them without affecting the cone segments. 6 refer to. If, for example, the winding material was completely present between the flanged wheels 12, 13, the distance A must also be selected by this distance of the flanged wheels 12, 13 so that the winding material can be removed. Was the outer edge of the winding material at a distance between the flange 12 and / or the flanged wheel 13, a correspondingly smaller distance A can be selected.

In FIG. 4 It is shown that the axes 10, 11 or their carriers were moved in such a way by the distance x against the direction s, that the edges K of the adjacent cone segments 6 come to rest. Alternatively, it is also conceivable to choose the distance x and the axes 10, 11 or their carrier only so far against the direction s shift that the gap SP with respect to the starting position does not disappear completely, but only reduced in size.

In addition, it is conceivable that the construction generally of the winding system (especially of the cone 4 and the cone 5) with its respective cone segments 6 symmetrically (as in the FIGS. 1 to 4 shown)), since this is particularly advantageous to reduce the clamping action of the winding material on the cone segments 6 and to allow easy removal of the winding material. However, it may also be thought possible to provide an asymmetrical structure of cone 4 and cone 5 with their respective associated cone segments 6. This means that the distance x at the collapse of the cone segments 6 of the cone 4 and the cone segments 6 of the cone 5 is the same, but may also be different from each other. Such an asymmetrical structure and an asymmetrical functioning of cone 4 and cone 5 can be advantageous, for example, in winding processes in which the winding material is not wound up uniformly on the winding system. However, it is of particular advantage to have a symmetrical structure (as in FIGS FIGS. 1 to 4 shown), in order to allow in any case a problem-free release of the stuck on the cone segments 6 winding material.

Regarding the execution according to FIG. 4 It should be pointed out that here the state is shown that the axes 10, 11 or their carrier were first moved to reduce the shell diameter, and then the winding system 4, 5 has been moved axially by the distance x in the direction s, whereby the two flanged wheels 12, 13 have also been moved axially apart by the distance A. However, it is important for the understanding that the jacket diameter of the winding system is first reduced in size (wherein the gap SP of the cone segments 6 is initially calculated starting from the in FIG. 3 shown position due to the oblique guide on the axes 10, 11 is at least reduced. Here, the mutually facing end faces of the cone segments 6 are not spaced apart in a corresponding manner facing each other, but held each other by claws, for example. Also in this state, the flanged wheels 12, 13 are still at the same distance they had during the winding process. Only after the reduction of the Sheath diameter of the two winding systems 4, 5 and after the surface of the cone segments 6 has detached from the winding material, it is only possible without problems, the flanged wheels 12, 13 move away from each other together with the winding system 4, 5, the distance A between the end faces of To enlarge facing cone segments 6, whereby then the winding material between the flanged wheels 12, 13 can be removed.

This mode of operation, which has already been explained above with reference to an exemplary embodiment, but is otherwise independent of it, will now be described below with reference to a first concrete exemplary embodiment.

The Fig. 1 to 3 show the winding arms 2, 3 in the retracted winding position. In this position, the two winding systems 4, 5 are set in uniform rotation. The winding material is supplied and will form a winding in the region between the flanged wheels 12, 13.

The Fig. 4 shows the winding arms 2, 3 in a moved apart removal position for the winding or the winding material. When moving apart of the winding arms 2, 3 slide the cone segments 6 mainly due to entrainment on the winding material on guides 8 in the Fig. 4 shown position, wherein the previous axial position of the guides 8 is changed, but not the position of the cone segments 6. This reduces the gap SP and consequently also the diameter of the respective winding system 4, 5. This dissolves the winding or the winding material from Winding system 4, 5. By the adhesion of the winding or winding material to the respective winding system 4, 5, the cone segments 6 are spent in the opening position with the distance x to the respective flange 12, 13. Each 4, 5 has frontally over claws 21, which engage in the collapsed state of the winding device in recesses 22 on each opposite winding system 4, 5. At each winding system 4, 5 claws 21 and recesses 22 alternate so that they engage with each other. As a result, a non-positive and positive connection between the winding system 4 and the winding system 5 is achieved. Via this connection, the drive for the rotational movement of winding system 4, 5 can take place. Thus, it is sufficient if only one winding system 4, 5 is actively driven, while the other winding system 4, 5 can be passively driven as a "follower". Furthermore, it is prevented that winding material between winding system 4 and 5 (frontally between the adjacent cone segments 6) penetrates and sets. Fixing means 9 can be designed for example as a screw or rivet.

The Fig. 5 to 10 show the winding system 5 in different perspectives or positions. Clearly visible in the Fig. 5 a disc 18, which serves as a stop or boundary for the cone segments 6 in the retracted position of the winding arms 2, 3 or the impanded position of the cone segments 6. The disc 18 is rotationally fixed to the axis 11 by a fastening means 9 connected. The claws 21 are part of a circular segment-shaped carrier 23, which is connected by fastening means 9 with the respective cone-shaped element. The claws 21 form a protruding element on the respective carrier 23. The resulting gradation forms with the respective adjacent carrier 23, the recess 22nd

By omitting a cone segment 6 gives the Fig. 6 the view of a support plate 7 'for receiving a cone segment 6 free. Furthermore, a flange 19 is visible, which is connected via fastening means 9 with the flanged wheel 13. The flange 19 is integral with a truncated cone 20 serving as a support for guides 8. On these guides 8, the cone segments 6 are linearly movable. About the disc 18 of the truncated cone 20 via the fastening means 9 is positively and non-positively connected to the axis 11.

The Fig. 7 and 9 show the winding system 5 in winding position. The removal position of the winding system 5 is in the Fig. 8 and 10 shown. Here, the distance or the travel of the cone segments 6 is marked with x. The distance or the direction of travel of the cone segments at least in preparation for the removal of the wound winding material is noted with s.

The Fig. 11 to 13 show a further embodiment of a winding device 1 'according to the invention with two winding arms 2, 3, each having a winding system 24, 25 have. Each winding system 24, 25 is constructed from three cylinder segments 26. These cylinder segments 26 are connected via adapters 7 with guides 8 by fastening means 9. Each winding system 24, 25 is mounted on an axle 10, 11. On the axes 10, 11 each a flanged wheel 12, 13 adjacent to the respective winding system 24, 25 is mounted. Furthermore, a drive 17 for the winding arms 2, 3 adjacent to the winding arms 2, 3 is arranged.

In the Fig. 13 is the obliquely arranged to the winding axis guide 8 shown on which the cylinder segments 26 are moved away from the flanged wheel 13 away. This reduces the diameter of the winding system and winding or cores are easier to separate from the winding system. With the flange 19 of the truncated cone 20 is connected to the flanged wheel 13. Due to the design as a truncated cone 20, the conically mounted thereon guides 8 have an inclination. This makes it possible to move the cylinder segments in such a way that the diameter of the winding system 25 is smaller.

This is analogous to the procedure, as they already general or specific to the FIGS. 1 to 4 has been described briefly explained.

The cylindrical elements 25, 26 form a gap SP for receiving the winding material between the flanged wheels 12, 13 along their mutually facing edges K. In addition, the end faces of the cylinder elements 26 facing each other and releasably connected, for example, again via a jaw system with each other. In the in FIG. 11 shown state, the winding device 1 'is adapted to wind between the flanged wheels 12, 13, the winding material on the cylinder elements 26.

After completion of the winding process, the axes 10, 11 or their carriers are again moved away from each other by the distance x in the direction s, so that the gap SP located between the edges K either shrinks or disappears. This reduces the original one Outer diameter D3 of the cylinder elements 26 (see FIG. 11 ) to a certain extent on a smaller diameter compared to the smaller diameter D4 (see FIG. 12 ), so that the surface of the cylinder elements 26 can be detached from the wound winding material. During this displacement, the flange 12, 13 are at the original distance during the winding process ( FIG. 11 ). Only after the gap SP has been at least reduced or even the mutually facing edges K have come to rest and thus the jacket diameter has shrunk) the flanged wheels 12, 13 are pushed apart axially by the dimension A, so that between the flange 12, 13 located winding material of the winding device 1 'can be removed. Again, it is again true that the dimension A must be at least so large that the wound winding material between the end faces of the cylinder 24, 25 can be moved through to remove this.

The invention is not limited to the embodiments described above.

LIST OF REFERENCE NUMBERS

1

winder

2

wrapping

3

wrapping

4

winding system

5

winding system

6

cone segment

7

Adapter / carrier

7 '

support plate

8th

guide

9

fastener

10

axis

11

axis

12

flanged wheel

13

flanged wheel

14

guide

15

skid

16

substructure

17

drive

18

Disk / stop

19

flange

20

truncated cone

21

claw

22

recess

23

carrier

24

winding system

25

winding system

26

cylinder segment

x

distance

s

Way / route / direction

K

edge

SP

gap

A

distance

Claims (7)

Winding device (1), in particular for web and / or strip-shaped material, comprising winding arms (2, 3) with at least one on at least one axis (10, 11) mounted winding system (4, 5), characterized in that the at least a winding system (4, 5) or (24, 25) of at least two movably mounted segments (6) or (26) is constructed. Winding device (1) according to claim 1, characterized in that the at least two movably mounted segments cone segments (6) or cylinder segments (26) are mounted linearly movable on guides (8). Winding device (1) according to claim 2, characterized in that the guides (8) are designed as ball or roller bearings guided bearings or as sliding guides. Winding device (1) according to claim 1 or 2, characterized in that the cone segments (6) or cylinder segments (26) of the winding systems (4, 5) on claws (21) and recesses (22) have, in the collapsed state of the winding device ( 1) mesh. Winding device (1) according to one of claims 1 to 4, characterized in that the cone segments (6) or cylinder segments (26) via adapters (7) or via a support plate (7 ') and an adapter (7) with the guides (8 ) are in operative connection. Winding device (1) according to one of the preceding claims, characterized in that the guide system is formed integrally with the cone segments (6) or cylinder segments (26). Winding device (1) according to one of the preceding claims, characterized in that gradations with overlaps are provided between the cone segments (6) or cylinder segments (26) in order to prevent the entry of winding material.

Images