EP1950156A2 - Method for unwinding the coil of a sheet of material from a coil reel and device for executing the method - Google Patents

Abstract

The method involves supporting a winding reel (2,2.1) in the device in the unwinding direction (R) by a control and regulating drive device (10) is initially turned such that the rotating of the winding reel is due to winding (3) at a flowing point (P), which detects the start of the winding (5) by a guiding device (16). The winding reel has a winding on both sides comprising a start of the winding pivotably mounted in the device (1). An independent claim is also included for a device, particularly a reel-spool storage station.

Description

The invention relates to a method for weaving a roll of a material web of a winding drum in a device, in particular a Tambourablagestation, wherein the winding drum is mounted with the winding start having a winding on both sides and rotatable in the device.

Furthermore, the invention relates to a device, in particular Tambourablagestation, with a winding formed on a winding drum from a web, the winding drum is mounted with the winding start having a winding on both sides and rotatable in the device. This device is particularly suitable for carrying out said method.

The invention is explained below with reference to an example in which the material web is a paper web. However, it is also applicable to other courses, which must be handled similarly. These are, for example, but not exclusively, sheets of cardboard or tissue or films of metal or plastic.

In the manufacture of a paper web by means of a paper machine, an endless web is usually produced, which is wound up at the end of the paper machine on hubs with the production of winding tambours. The wound-up paper web is used for subsequent treatment in a processing machine, for example in a slitter-winder, a rerolling machine or a calender, or in a finishing machine, For example, in a coating machine, further transported and unwound in a corresponding unwinding again. Both during winding and unwinding of these winding reels, certain amounts of rejects occur, the treatment and recycling of which in the production process often leads to great hindrances to the production process. When removing the core Committee of coated winding troughs by cutting the inner layers, it often causes damage to the covers of the hubs by sharp-edged tools or other cutting means.

In known methods for removing the core board on usually laid down on a broke container winding tambours the remaining winding rind is manually cut with a knife, an ax, a scraper or the like and then removed. The manual cutting of the remaining winding rind is often associated with particular risks to the personnel to be carried out, in particular by falling down rinds of the paper web and / or due to the proximity to the normally open reject container. There is also a risk of cuts for the staff.

Mechanical processes, for example with a circular knife, a blade or a scraper, are used. However, the known machine procedures have the disadvantage that when cutting the remaining winding rind damage to the cover of the winding core can not always be safely prevented.

Furthermore, all known methods often have the disadvantage of a complex handling for the Winding on. So they must be transported by a crane, a car, a lifting device or the like to a place where it is possible to remove the core committee in the form of a residual rind of the winding tambours and dispose of in a waste container. After performing the Abschwartens the hubs must then be transported to another location.

It is therefore the object of the invention to develop a method and a device of the aforementioned types such that the disadvantages of the prior art are overcome and an easy way to eliminate core committee of a material web is created.

This object is achieved in a method of the type mentioned in the present invention that the stored in the device winding drum is rotated in an unwinding by means of at least one preferably controllable / controllable drive means at least initially, that of the winding due to the rotation of the winding drum on a Expiration point expired winding start is detected by means of at least one guide device and that both the expired winding start and the remaining material web of the roll is guided by the guide device in a arranged below the device rejects container.

The object of the invention is completely solved in this way.

The inventive method is characterized by the possibility of automatic Abschwartens of the winding drum. The previous process steps for Abschwarten a winding cylinder are now either completely eliminated, such as the cutting of the remaining rind, or automated so that the Abschwarten can be performed without staffing.

Moreover, the method according to the invention is characterized by a not insignificant time advantage, since no additional transport paths have to be performed with the winding drum. Also, there is a commercial advantage because no additional equipment is required to transport the reel drum to a different position or level. With regard to the roll handling in the device, there is the advantage that no position for the skimming must be kept free, but all device positions can be re-populated immediately. This ensures, among other things, a smooth material flow in the device.

The aforementioned unwinding direction of the winding drum is usually the opposite direction of the winding direction desselbigen. The rotation of the winding drum in the unwinding causes moreover that the winding start is unwound from the winding drum under all circumstances and due to the acting weight of its flow point falls vertically downwards so that it can be reliably detected by the at least one guide means. The guide device then performs the winding start together with the remaining web of the winding in a arranged below the device Committee. The known per se reject container, also called pulper in professional circles, can have a shaft with a temporarily closable manhole cover.

In a first embodiment according to the invention, the winding roll stored in the device is rotated in the unwinding direction by means of the drive device at least for so long, preferably only until the remaining material web of the roll runs automatically from the winding drum during its rotation as a result of the acting forces. Basically, it is only necessary to turn the wrapping drum until it runs on its own. Thus, the required drive power for the Abschwarten can be significantly reduced and provide a time advantage.

Furthermore, in a further preferred embodiment, the guide device is arranged at least initially vertically below or substantially vertically below the discharge point of the winding start to the socket. Thus, it is ensured without major activities and costly facilities that the beginning of the winding runs independently in the guide device.

In order for the winding beginning, which has run away from the winding as a result of the rotation of the winding drum, to be safely guided into the reject container over a relatively long distance, it is advantageous if, during its detection by the moving guide device, it also simultaneously or with a time delay by means of at least one sensor activatable clamping device is clamped at least initially. The possible activation of the clamping device by means of a sensor, such as a light barrier, ensures that the clamping device can be operated in a timely manner and the winding start in a clamping manner.

Thus, in a preferred embodiment, the winding beginning which has run off the winding as a result of the rotation of the winding drum is guided by the guide device, at least over an initial stretching region, preferably to the reject container. This proposed guidance considerably increases the process reliability and the degree of automation of the shutdown.

A noticeable simplification of the guide can also result if the expired winding start is guided in a further embodiment of the guide device at least over a vertical distance range away.

The object of the invention is achieved in a device of the type mentioned in that at least one preferably controllable / controllable drive means for at least initial rotation of the winding drum mounted in the device is provided in a unwinding that at least one guide means for detecting the resulting from the winding the rotation of the winding drum at an expiration point expired winding start is provided and that the guide means is designed to guide both the expired winding start and the remaining material web of the roll in a arranged below the device reject container.

This results in the aforementioned advantages according to the invention over the known prior art.

The drive device preferably comprises a preferably controllable / controllable drive unit, in particular an electric motor, and at least one drive element which can be acted upon by the drive unit and can be brought into engagement on the winding drum, in particular a friction wheel, a drive belt or the like. Due to its operational reliability and the associated runnability, this type of drive device contributes to outstanding functionality of the device.

Further, the guide means may be at least initially arranged vertically below or substantially vertically below the discharge point of the winding start to the socket. Thus, it is ensured without major activities and other cost-intensive facilities that the winding start runs independently in the guide device.

In a preferred embodiment, the guide device comprises at least one funnel-shaped inlet area with at least two walls arranged at a funnel angle and a channel-shaped main area with at least two preferably parallel or approximately parallel walls. The guide device thus essentially corresponds to an open guide box and is characterized by a given functionality in a simple structure, since, for example, the funnel-shaped inlet area allows an independent detection of the beginning of the winding.

In order for the winding beginning, which has run out of the winding as a result of the rotation of the winding drum, to be safely guided into the reject container over a relatively long distance, it is advantageous if means for the at least initial movement are provided in the guide main region of the guide device Clamping the winding start are arranged, wherein the means clamp the winding start at its detection by the guide means at the same time or delayed.

The preferably be activated by means of at least one sensor means for at least initial clamping of the winding start in a variety of ways: so they can, for example, at least one preferably controlled with a medium / filled filled and thereby expanding hose, wherein the filled tube the winding start between itself and a wall of the main guidance area jams. Also, the means may comprise at least one preferably controlled / regulated drivable pair of rollers or brush pair, which clamps the winding start on the inside. The possible activation of the clamping device by means of a sensor, such as a light barrier, ensures that the clamping device can be operated in a timely manner and the winding start in a clamping manner.

Moreover, the guide device can be arranged stationary or movable by means of at least one movement device. A stationary arranged guide device is preferably arranged vertically below or substantially vertically below the discharge point of the winding start to the socket.

By contrast, a movably arranged guide device is preferably movable by means of the movement device at least between a detection position in which the winding start is detected by it and a dispensing position in which the winding start and the remaining material web of the winding is dispensed directly or indirectly into the reject container.

In a first preferred embodiment, the movement device itself can comprise at least one winch arranged at the beginning and at the end of the guide device and preferably controllable, wherein the guide device is preferably guided on both sides by means of at least one guide system, in particular guide rails. The Guide system can in this case be movable at least between a rest position and a guide position, so that there are no collisions with other moving components in the area of the device, such as winding rolls and the like.

On the other hand, in a second preferred embodiment, it may comprise at least one linear guide arranged at the beginning and at the end of the guide device and preferably controllable / controllable, wherein the guide device is preferably guided over at least a vertical distance region. Both embodiments ensure, inter alia, a process-safe guidance of the winding start and the remaining material web in the reject container.

Further features and advantages of the invention will become apparent from the following description of preferred embodiments with reference to the drawings.

Figur 1

eine schematische Seitenansicht einer Ausführungsform einer erfindungsgemäßen Einrichtung in einer ersten Abschwartphase;

Figur 2

eine schematische Seitenansicht der erfindungsgemäßen Einrichtung der Figur 1 in einer weiteren Abschwartphase;

Figur 3

eine schematische Seitenansicht der erfindungsgemäßen Einrichtung der Figur 1 in einer alternativen Abschwartphase; und

Figuren 4 bis 6

mehrere schematische und geschnittene Ansichten von erfindungsgemäßen Führungseinrichtungen.

Show it

FIG. 1

a schematic side view of an embodiment of a device according to the invention in a first Abschwartphase;

FIG. 2

a schematic side view of the device according to the invention the FIG. 1 in a further phase of decline;

FIG. 3

a schematic side view of the device according to the invention the FIG. 1 in an alternative decay phase; and

FIGS. 4 to 6

several schematic and sectional views of guide devices according to the invention.

The FIG. 1 shows a schematic side view of a device 1 with a formed on a winding drum 2 of a material web 4 winding 3 in a first Abschwartphase. The device 1 may in particular be a Tambourablagestation act, which is usually a part of a winding or unwinding machine for the web 4. In the device 1, two empty, already waiting winding reels 2 are also stored.

The material web 4 is an example of a paper web. However, the invention is also applicable to other webs that need to be handled similarly. These are, for example, but not exclusively, sheets of cardboard or tissue or films of metal or plastic.

The winding drum 2 with the winding beginning 5 having a winding 3 is mounted on both sides and rotatable in the device 1, which arranged for storage and movement of the winding 2 at least two arranged on a frame structure 7 and parallel longitudinal beam 6 with at least one mounted thereon Tambourlaufschiene 8 Forming a spool track 9 for the winding reels 2 comprises. On the one hand, the winding drum 2 can be rotatable in its entirety, that is to say be rigid in itself, and on the other hand it can each have a rotatable mounting on both sides, so that basically only its winding body can be rotated. Both variants can occur in practice and accordingly find their use in the device 1.

The device 1 has at least one preferably controllable / controllable drive device 10 for the at least initial rotation of the winding drum 2.1 mounted in the device 1 and intended for descaling in an unwinding direction R (movement arrow). The winding drum 2.1 is waited in the illustrated embodiment "from the right" so that it is moved during the shutdown in a clockwise direction (movement arrow R). The drive device 10 comprises a preferably controllable / controllable drive unit 11, in particular an electric motor 12, and at least one actuatable by the drive unit 11 and on the winding drum 2.1 engageable drive element 13, in particular a friction wheel 14. The drive element 13, depending on the design also be designed as a drive belt or the like.

In the execution of FIG. 1 the intended for Abschwarten winding tuft 2.1 is positioned directly above a rejects container 15 in a Abschwartposition A in the device 1. Since the Abschwartposition A for the respective winding drum 2 can thus always be the same, the drive means 10 may be stationary and medium or directly attached to the corresponding side member 6. If the Abschwartposition A or to be driven winding drum 2.1 assume different positions, then the drive means 10 should be arranged just movable. Moreover, it is obvious to a person skilled in the art that a corresponding drive device 10 can also be arranged on the second longitudinal carrier 6.

Furthermore, a guide device 16 is provided for detecting the winding 3 which has run off the winding 3 as a result of the rotation of the winding drum 2.1 at a discharge point P. The guide device 16 is also designed to guide both the expired winding start 5 and the remaining material web 4 of the roll 3 in the disposed below the device 1 reject container 15.

The guide device 16 is arranged in its detection position B, which may also be their parking position, vertically below or substantially vertically below the discharge point P of the winding start 5. The parking position of the guide means 16 may, of course, be at any free location in the area of the device 1, it must have just been brought into the detection position B prior to its use.

The guide device 16 comprises a funnel-shaped inlet region C with at least two walls 17.1, 17.2 arranged at a funnel angle α and a channel-shaped main guide region D with at least two preferably parallel or approximately parallel walls 18.1, 18.2 (cf. FIG. 4 ).

In the main guide portion D of the guide means 16 means 19 for at least initial clamping of the winding start 5 are arranged, wherein the means 19 clamp the winding start 5 at its detection by the guide means 16 at the same time or with a time delay. In a simultaneous clamping of the winding start 5 is clamped directly, whereas in a time-delayed clamping already a part of the remaining material web 4 is clamped. The means 19 can be activated by means of at least one sensor 20, which is arranged in the present embodiment in the path of the winding start 5 below the guide means 16 and may for example comprise a light barrier. The sensor 20 is attached to the frame structure 7 and its circuitry known to a person skilled in the art is not explicitly shown.

Depending on the embodiment, the guide device 16 may be stationary or arranged to be movable by means of at least one movement device 21. In the case of a movably arranged guide device 16, as shown in the FIG. 1 is possible, it is by means of the movement device 21 at least between the detection position B, in which the winding start 5 is detected by them, and a discharge position E (see. Figures 2 and 3 ), in which the winding start 5 and the remaining material web 4 of the roll 3 is discharged into the reject container 15, movable.

The movement device 21 comprises at least one respective winch 22 arranged at the beginning and at the end of the guide device 16 and preferably controllable, which is preferably attached to the adjacent side member 6 of the device 1.

The already mentioned reject container 15, also called a pulper in specialist circles, has a base 23, which supports the device 1, through a perforated shaft 24, which is temporarily closed with a manhole cover 25. The manhole cover 25 may be, for example, a rotary flap 26 which is movable between a closed position and a passage position shown.

In the area of the device 1, a rail system 27 for full bobbins 28 is also arranged. This arranged in the frame structure 7 rail system 27 allows the transport and storage of the full bobbins 28th

Of course, it may also be possible that the winding tambour 2.1 "from the left", ie has to be waited in a counterclockwise movement. For this he must not be driven so far, he must therefore be left on the side rails 6 to the right, are thus brought into a position in which the winding start 5 in turn aligned with the guide means 16. The drive device 10 must follow the winding drum 2.1 accordingly.

The FIG. 2 shows a schematic side view of the device 1 of FIG. 1 in a further downswing phase. Thus, with regard to the basic structure of the device 1 in principle to the description in the FIG. 1 directed.

The guide device 16 movably arranged by means of the movement device 21 remains in a stationary position during the deswelling of the coil 3. Thus corresponds to the dispensing position E, in which the winding start 5 and the remaining material web 4 of the roll 3 is discharged into the reject container 15, the detection position B, in which the winding start 5 is detected by the guide means 16. The winding start 5 and the remaining material web 4 of the roll 3 is thus waited vertically from the drain point P down into the open reject container 15.

On the other hand shows the FIG. 3 a schematic side view of the device 1 of FIG. 1 in an alternative descent phase. Thus, with regard to the basic structure of the device 1, in turn, in principle to the description in the FIG. 1 directed.

The guide device 16 is moved from its original detection position B, in FIG which the winding start 5 is detected by the guide device 16, by means of the movement device 21 in its discharge position E, in which the winding start 5 and the remaining material web 4 of the roll 3 is discharged into the reject container 15 moves.

In the present embodiment, the winding start 5 and the remaining material web 4 of the roll 3 from the discharge position E vertically downwards in the open broke container 15 is waited. The discharge position E can, as described below, also be arranged laterally offset from the shaft 24 of the reject container 15.

During its movement from the detection position B to the dispensing position E, the guide device 16 can be guided on both sides by means of at least one guide system 29, in particular guide rails 30, only indicated. The guide device 16 would thus be guided at least over a vertical distance range. Furthermore, the guide system 29 is movable at least between a non-illustrated rest position and a guide position shown, so that there are no collisions with other moving components in the area of the device 1, such as winding rollers 28 and the like.

Each guide device 16 shown comprises a funnel-shaped inlet region C with at least two walls 17.1, 17.2 which are set together at a funnel angle α and a channel-shaped main guide region D with at least two preferably parallel or approximately parallel walls 18.1, 18.2.

In the in the FIG. 4 illustrated embodiment, the means comprise 19 at least one preferably with a medium 32 controlled / regulated filled and thereby expanding hose 31, wherein the attached to the wall 18.1 and filled hose 31 the winding start 5 (dashed lines) between itself and the wall 18.2 of Main guide section D is jammed.

On the other hand, in the embodiment of FIG FIG. 5 illustrated means 19 at least one preferably controlled / controlled drivable roller pair 33, which clamps the winding start 5 (dashed line) in the region of the main guide portion D on the inside. The pair of rollers 33 may be designed to be movable toward one another for the purpose of clamping. Moreover, at least one roller of the pair of rollers is driven.

And in the in the FIG. 6 illustrated embodiment, the means comprise 19 at least one preferably controlled / controlled drivable brush pair 34, which clamps the winding start 5 (dashed line) in the region of the main guide portion D inside. The brush pair 34 may be designed to be movable toward one another for the purpose of clamping. Furthermore, at least one brush of the brush pair is driven.

The in the FIGS. 1 to 6 described device 1 is suitable in a particular extent for carrying out the method according to the invention for skinning a roll 3 a web 4 of a winding drum 2.1, wherein the winding drum 2.1 is mounted with the winding start 5 having a winding 3 on both sides and rotatable in the device 1. In this case, the winding drum 2.1 is at least initially rotated in an unwinding direction R (movement arrow) by means of the preferably controllable / controllable drive device 10, the winding beginning 5 which has run off the winding 3 as a result of the rotation of the winding drum 2.1 at the discharge point P is detected by means of the guide device 16 and Both the expired winding start 5 and the remaining material web 4 of the roll 3 is guided by the guide device 16 in a arranged below the device 1 rejects container 15.

In summary, it should be noted that a method and a device of the aforementioned types are improved by the invention such that the Disadvantages of the prior art are overcome and an easy way to eliminate core scrap of a web is created.

LIST OF REFERENCE NUMBERS

1

Facility

2

winding drum

2.1

winding drum

3

reel

4

web

5

winding start

6

longitudinal beams

7

frame construction

8th

Tambour running rail

9

Tambour career

10

driving means

11

drive unit

12

electric motor

13

driving element

14

friction wheel

15

Committee container

16

guide means

17.1

wall

17.2

wall

18.1

wall

18.2

wall

19

medium

20

sensor

21

mover

22

winch

23

foundation

24

shaft

25

manhole cover

26

butterfly valve

27

rail system

28

reel

29

guidance system

30

guide rail

32

medium

31

tube

33

roller pair

34

Bürstenpaar

A

Abschwartposition

B

detection position

C

intake area

D

Leadership main area

e

delivery position

P

the end point

R

Unwinding direction (movement arrow)

α

funnel angle

Claims (21)

Process for skinning a roll (3) of a material web (4) from a winding drum (2, 2.1) in a device (1), in particular a drum storage station, the winding drum (2, 2.1) having the winding (5) having the winding ( 3) is mounted on both sides and rotatable in the device (1),
characterized,
in that the said means (1) mounted winding drum (2.1) in an unwinding direction (R) by at least one preferably controllable / regulatable drive means (10) is rotated at least initially,
in that the winding beginning (5) which has run off the winding (3) as a result of the rotation of the winding drum (2.1) at a discharge point (P) is detected by means of at least one guide device (16) and
in that both the expired winding start (5) and the remaining material web (4) of the roll (3) are guided by the guide device (16) into a reject container (15) arranged below the device (1). Method according to claim 1,
characterized,
in that the winding drum (2.1) mounted in the device (1) is rotated in the unwinding direction (R) by means of the drive device (10) for at least as long, preferably only until the remaining material web (4) of the reel (3) as a result of the forces acting independently of the reel spool (2.1) takes place during its rotation. Method according to claim 1 or 2,
characterized,
in that the guide device (16) is arranged at least initially vertically below or substantially vertically below the discharge point (P) of the winding start (5) to its holder. Method according to one of the preceding claims,
characterized,
in that the winding beginning (5), which has run off the winding (3) as a result of the rotation of the winding drum (2.1), is detected simultaneously or delayed by at least one clamping device (19) which can be activated by at least one sensor (20) when it is detected by the guide device (16) initially clamped. Method according to one of the preceding claims,
characterized,
in that the winding beginning (5) which has run off the winding (3) as a result of the rotation of the winding drum (2.1) is guided by the guide device (16) at least over an initial stretching region, preferably to the reject container (15). Method according to claim 5,
characterized,
that the elapsed winding start (5) of the guide device (16) is guided at least over a vertical distance range. Device (1), in particular drum carrier station, with a winding (3) formed on a winding drum (2, 2.1) from a material web (4), the winding drum (2, 2.1) having one winding start (5) bearing winding (3) is mounted on both sides and rotatable in the device (1),
characterized,
that at least one preferably controllable / adjustable drive means (10) for at least initial rotation of the means (1) mounted winding reel spool (2.1) in an unwinding direction (R) is provided,
in that at least one guide device (16) is provided for detecting the winding start (5) which has run off the winding (3) as a result of the rotation of the winding drum (2.1) at a discharge point (P), and
in that the guide device (16) for guiding both the expired winding start (5) and the remaining material web (4) of the roll (3) is formed in a reject container (15) arranged below the device (1). Device (1) according to claim 7,
characterized,
in that the drive device (10) has a preferably controllable / controllable drive unit (11), in particular an electric motor (12), and at least one drive element (13) which can be acted upon by the drive unit (11) and can be brought into engagement on the winding drum (2.1) a friction wheel (14), a drive belt or the like. Device (1) according to claim 7 or 8,
characterized,
in that the guide device (16) is arranged at least initially vertically below or essentially vertically below the discharge point (P) of the winding start (5) to its holder. Device (1) according to one of claims 7 to 9,
characterized,
in that the guide device (16) has at least one funnel-shaped inlet region (C) with at least two walls (17.1, 17.2) arranged at a funnel angle (α) and a channel-shaped main guide region (D) with at least two preferably parallel or approximately parallel walls (18.1, 18.2). Device (1) according to claim 10,
characterized,
in that the main guide region (D) of the guide device (16) means (19) for at least initial clamping of the winding start (5) are arranged, wherein the means (19) the winding start (5) at its detection by the guide means (16) at the same time or time-delayed clamping. Device (1) according to claim 11,
characterized,
that the means (19) at least preferably controlled / regulated one with a medium (32) can be filled and thereby to include expanding hose (31), wherein the filled tube (31) to the winding start (5) between itself and a wall (18.2) of Main section of the guide (D) is jammed. Device (1) according to claim 11,
characterized,
in that the means (19) comprise at least one pair of rollers (33) which can preferably be driven in a controlled manner and which clamps the winding start (5) on the inside. Device (1) according to claim 11,
characterized,
in that the means (19) comprise at least one brush pair (34) which can preferably be driven in a controlled / regulated manner and which surrounds the winding start (5). inside jammed. Device (1) according to one of claims 11 to 14,
characterized,
in that the means (19) can be activated by means of at least one sensor (20). Device (1) according to one of claims 7 to 15,
characterized,
in that the guide device (16) is arranged stationary or movable by means of at least one movement device (21). Device (1) according to claim 16,
characterized,
in that the guide device (16) is detected by means of the movement device (21) at least between a detection position (B) in which the winding start (5) is detected by it and a dispensing position (E) in which the winding start (5) and the remaining material web (4) of the coil (3) is discharged into the reject container (15) is movable. Device (1) according to claim 16 or 17,
characterized,
in that the movement device (21) comprises at least one respective winch (22) arranged at the beginning and at the end of the guide device (16) and preferably controllable. Device (1) according to claim 18,
characterized,
in that the guide device (16) is guided on both sides by means of at least one guide system (29), in particular guide rails (30). Device (1) according to claim 16 or 17,
characterized,
includes that the movement means (21) at least a respective beginning or end of the guide means (16) arranged and preferably controllable / adjustable linear guide. Device (1) according to one of Claims 16 to 20,
characterized,
in that the guide device (16) is guided over at least a vertical distance region.

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