EP2019060A2 - Winding and method for winding strips of fibrous material in a winding device - Google Patents
Winding and method for winding strips of fibrous material in a winding device Download PDFInfo
- Publication number
- EP2019060A2 EP2019060A2 EP08160598A EP08160598A EP2019060A2 EP 2019060 A2 EP2019060 A2 EP 2019060A2 EP 08160598 A EP08160598 A EP 08160598A EP 08160598 A EP08160598 A EP 08160598A EP 2019060 A2 EP2019060 A2 EP 2019060A2
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- EP
- European Patent Office
- Prior art keywords
- winding
- support roller
- axis
- roll
- roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H18/00—Winding webs
- B65H18/08—Web-winding mechanisms
- B65H18/14—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web
- B65H18/20—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web the web roll being supported on two parallel rollers at least one of which is driven
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H18/00—Winding webs
- B65H18/08—Web-winding mechanisms
- B65H18/26—Mechanisms for controlling contact pressure on winding-web package, e.g. for regulating the quantity of air between web layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/40—Shafts, cylinders, drums, spindles
- B65H2404/43—Rider roll construction
Definitions
- the invention relates to a winding device for winding webs, in particular fibrous webs, preferably in the form of paper or board webs with at least a first and a second winding bed forming a support roller against which the winding during winding, wherein the first lying in the fibrous web running direction support roller of this is at least partially entwined, while the second is changeably adjustable in their position via means for axis displacement.
- the invention further relates to a method for winding a fibrous web in a winding device.
- Winding devices in the form of so-called Doppeltragwalzenwickelvorraumen are known in a variety of designs. All have in common is that the winding of the wound fibrous web is supported by two support rollers, wherein the two support rollers form a winding bed.
- a substantial parameter for the subsequent further processing for fibrous webs wound with these machines is the winding hardness.
- the winding hardness over the entire roll diameter is characterized by a certain course. Ideally, the winding hardness should be constant over the entire roll diameter, but alternatively fall evenly from a certain initial value to a final value.
- the loading roller is lowered before winding on the empty tube and pushes them with a certain force in the winding bed. Now starts the winding process and grows accordingly the Wickel penmesserr, so the force with which the load roller is pressed against the winding, initially increased. Only when reaching a certain diameter, the weight of the coil sufficient to achieve a good winding result and the contact force is no longer needed. As the winding diameter increases, the load roll moves farther and farther away from the apex line of the roll.
- the load roller usually acts not on the side on the winding, at which the feed of the fibrous web takes place, but on the side of the second support roller, this leads to a strong increase in the proportion of the force applied via the loading roller force on the first support roller, which leads to a deterioration of the hardening process.
- axle displacement means are provided for axially parallel displacement of the axis of a support roller relative to the axis of the other support roller.
- the first support roller seen in the web running direction is designed with a larger diameter than the other second support roller and the axis of the second support roller is considered during the entire winding process in the vertical direction higher than the axis of the first support roller, which is also wrapped by the fibrous web and this leads, arranged.
- means connected to the axle displacement means are provided, causing a lowering of the axis of the second support roller in response to the increasing diameter of the coil such that the axis of the coil moves along a predetermined vertical or relative to a vertical plane only slightly inclined line of movement, the main load to improve the winding hardness in the fibrous web running direction first gap is supported.
- the invention is therefore based on the object, a winding device of the type mentioned in such a way that even with displaceable, in particular handlebar-guided load roller as possible a uniform winding density over the entire winding is achieved.
- a winding device for winding fibrous webs in the form of paper or board webs with a first stationary and a second support roller, which abuts the winding during winding comprises Achsverlagerungsmittel for axially parallel displacement of the axis in the fibrous web running direction second support roller relative to the first support roller, wherein the Displacement according to the invention takes place in such a way that during operation the axis of the second carrier roll in the fibrous web direction in the vertical direction is arranged or displaceable such that the winding nip formed between the winding and the second support roll in a plane or below the other, formed between the first support roll and winding lap is arranged, wherein the second support roller relative to the first support roller via the means for axial displacement is lowered.
- the weight of the wound coil is increasingly shifted to the second support roller, so that the line pressure in the gap formed between the first support roller and the winding can be kept low, preferably at a constant value, so that the winding hardness is not adversely affected by high line pressures in the first press nip.
- the adjustment takes place on a circular arc, that is by pivoting.
- the means for axle displacement comprise a guide device for the second support roller, which is pivotable about the pivot axis by means of a pivoting device.
- the pivot axis is formed by the bearing axis or axis of the first support roller.
- the displacement around the outer circumference of the first support roller on a circular arc is always at a uniform distance, in this case with automatic lowering and load by means of a loading roller without significant additional effort when enlarging the coil, that is, depending on the feed rate of the fibrous web and the Drive speed of the individual support rollers, an increase in line force in the second gap formed between the winding and the second support roller is achieved, while the line force in the first gap between the winding and the first support roller can be kept constant, without complex control algorithms for determining the manipulated variable for controlling the adjusting device.
- the guide means for the support roller is mounted on the bearing axis of the first support roller according to a particularly advantageous embodiment. As a result, an axis parallelism between the support rollers is ensured in a simple manner.
- the pivot axis is preferably also arranged in a region which allows a horizontal movement in the direction of the first support roller during pivoting.
- the two support rollers preferably have the same diameter. This offers the advantage of easy adjustability. However, it is also conceivable to make the second carrier roll larger than the first one, as a result of which an increase in the bearing force can once again be achieved here. It is also possible to provide the second support roller with a soft roll shell. In this case, no press nip forms with line contact, but a flat press nip, so that here the surface pressure in the second winding nip between the winding and the second support roller can be significantly reduced, which is positive for the winding quality.
- the required ratios can also be adjusted by shifting both support rollers.
- These are stored in the simplest case on a rocker whose pivot axis is below the bearing axes of both support rollers in the neutral position and which is arranged parallel to these.
- the pivot axis of the rocker is arranged in the region of the bearing axis of the first support roller.
- the pressing of the roll by means of a corresponding load roller is preferably handlebar-guided, that is, compared to a pre-settable on the handlebar force this is pressed upon enlargement of the coil against the handlebars and thus moves in the radial direction relative to the winding axis to the outside.
- the inventive method for winding a fibrous web wherein the winding is applied to a first and second support roller during the winding process, wherein the first support roller partially wrapped by the fibrous web is stationary and is carried out, characterized in that the winding hardness depending on the increase of the winding size, in particular the diameter, the second support roller relative to the first support roller from a position in which this with its axis in a plane or below the axis of the first Roller is lowered, is lowered.
- the second bearing axis of the support roller is pivoted.
- the pivoting is preferably carried out about the bearing axis of the first support roller, in which case an accurate axis-parallel guidance is given.
- the winding process is performed with constant contact pressure on the pressure roller. Furthermore, the contact pressure can be controlled.
- a reduction is not made immediately, but only when the winding has reached a predefined minimum size and the bearing force in individual Wickespalten does not exceed a certain value.
- an increase in the diameter of the roll at least indirectly descriptive size, for example, the diameter or the fibrous web feed speed or the drive speed of the support rollers, detected and generated in response to this a manipulated variable for driving a setting device for the second support roller to change the position, wherein the change in position always takes place parallel to the axis.
- FIGS. 1a and 1b clarify the conditions in an embodiment according to the prior art.
- the same reference numerals have been used.
- the winding machine 1 comprises at least two support rollers, a first support roller 2 and a second support roller 3, which are arranged axially parallel to each other, are rotatably mounted and together form a winding bed 4 for receiving a coil 5.
- the winding bed 4 is formed by the theoretically possible contact area of the roll on the outer circumference of the support rollers 2 and 3.
- the winding 5 is formed by Winding the fibrous web 6 around a sleeve 7, wherein the fibrous web 6 is guided around the first support roller 2.
- the FIG. 1a illustrates the operating state before or at the beginning of the winding process according to the prior art.
- the fibrous web 6 is brought from the bottom left to the first support roller 2 and wraps around this on a portion of its outer periphery 14.
- the sleeve 7 or wound with fibrous web 6 of the winding 5 is loaded by a force adjustable in their pressure roller or load roller 8, so that the Pad pressure for the resulting during the winding winding 5 at the two support rollers 2 and 3 to influence.
- the support rollers 2 and 3 preferably have the same diameter D2 and D3.
- the axes L 2 , L 3 which correspond to the axes of rotation of the support rollers 2 and 3 are then in a plane which is preferably oriented horizontally, that forms an angle of 0 ° with the horizontal.
- Both axes of the support rollers 2 and 3, which are designated here L 2 and L 3 are arranged axially parallel to each other. These form with the sleeve 7 and later the resulting winding 5 each have a winding nip 12, 13.
- the sleeve 7, around which the winding 5 is formed, is in this operating condition centrally between the two support rollers 2 and 3 in the winding bed 4, so that the Supporting force of the sleeve at each of the individual support rollers 2 and 3 is equal.
- the contact forces are shown here by means of arrow and designated F A2 for the support roller 2 and F A3 for the support roller 3.
- the loading roller 8 acts vertically and centrally on the sleeve 7, that is, the resultant force of the loading roller 8 on the sleeve 7 is in a vertical, preferably perpendicular to the connecting plane between the longitudinal axes L 2 and L 3 of the support rollers 2 and 3.
- the second Support roller 3 acts as a support roller for forming the winding bed 4, while the first support roller 2 also serves to guide the fibrous web 6 to the winding 5.
- the load of the loading roller 8 is reduced. This is variable in their position relative to the position of the two support rollers 2 and 3, in particular the longitudinal axes L 2 and L 3 of Carrier rollers 2 and 3.
- the loading roller 8 is guided by the handlebar.
- the loading roller 8 is held by a pivotable about an axis A traverse 10 and out with respect to this in the direction of the arrow to be pressed in a position about the support rollers 2, 3 approximately opposite position on the already produced winding 5 with adjustable force.
- the unit of traverse 10 and loading roller 8 with increasing diameter D of the roll 5 follows on a circular segment path the outer periphery 11 of the coil 5.
- the loading roller 8 is associated with an adjusting device 9, the traverse 10 and the adjusting means, in particular the means for Change in position of the traverse 10 include.
- the axis of rotation A for the traverse 10 and thus the latter leading arm 20 is arranged with respect to the apex line of the resulting roll 5 on the side of the second support roller 3, that is in the axial direction in an area between the perpendicular to the center line of the sleeve 7 in the initial state or the parting plane between the support rollers 2, 3 and a region axially adjacent to the second support roller 3 on the side remote from the first support roller 2 side.
- the axis of rotation A is also above the bearing axes L 2 , L 3 of the first and second support rollers 2, 3 are arranged.
- This existing force in the form of the contact force F A2 is greater than that, which is composed of the weight force component of the coil 5 and the proportion of the force component from the load of the loading roller 8 and the second support roller 3 in the gap 13 between the winding 5 and the outer periphery 15 of the second support roller.
- the contact force F A3 is smaller than the contact force F A2 in the first gap 12, as in FIG. 1b clarified.
- connection plane E 2; E 3 of the bearing axes L 2 and L 3 an angle relative to the vertical, in particular an angle to a perpendicular to the winding axis L 5 a.
- the gap 13 is lowered relative to the position of the gap 12, wherein the position of the first support roller 2 is kept constant, that is, this is stationary, but rotatably mounted and driven.
- the lowering of the support roller 3 is carried out according to the invention such that the contact force F A2 in the first gap 12 between the first support roller 2 and the winding 5 is kept constant.
- the contact force F A3 increases accordingly.
- the main force is supported on the second support roller 3, while the fibrous web 6 leading support roller 2 with increasing winding size a constant line force F A2 in the gap 2 is supported.
- the winding hardness is thus adjusted over the entire process as a function of this constant line force in the first gap.
- the axis displacement of the support roller 3 acts as a manipulated variable.
- the line force in the first winding gap can be kept constant via this.
- the Figure 1c illustrates in a schematic simplified representation of the lowering of the second support roller 3 and thereby adjusting force relationships in the winding nips 12 and 13, in particular the contact forces F A2 and F A3 .
- the Figures 1d and 1e illustrate the force distribution in the individual winding nips 12 and 13 between the support rollers 2 and 3 and the winding 5 during further lowering. It can be seen that the contact force F A3 with respect to the contact force F A2 with increasing winding size 5 increases, while the contact force F A2 is kept almost constant.
- FIG. 1f illustrated by a diagram of the balance of power in the first winding nip in dependence on the change in diameter of the winding roll.
- the force F LD with the load roller is pressed against the empty tube and is regulated until reaching a predefined winding diameter so that it rises and then decreases.
- the resulting line load F Lalt is also plotted.
- the characteristic F Lnew illustrates the conditions in the solution according to the invention with constant line load over the entire winding process.
- the characteristic curve G illustrates the increase in the roll weight during the winding process.
- the support roller 3 associated with means 16 for axis displacement, comprising an adjusting device 18.
- the movement is preferably always such that the line force and thus the contact force F A2 for the winding in the gap 12 is constant.
- the displacement or movement of the second support roller 3 with respect to the axis L 3 at a distance a to the axis L 2 there are a plurality of possibilities. This can be realized by superposition of linear, vertical and horizontal movements or as a pure pivoting movement.
- the movement around the outer periphery 14 of the support roller 2 takes place on a circular path, wherein according to a particularly advantageous embodiment, the movement of the axis L 3 takes place by pivoting about the axis L 2 of the first support roller 2.
- the means 16 for axis displacement of the second support roller 3 are designed such that preferably the axis L 3 is mounted on a guide means 17, which in turn is pivotally mounted or rotatable about the axis L 2 to the first support roller 2 , In this case, there is always an exact axis-parallel assignment of the axes L 2 and L 3 to each other.
- the Axial displacement takes place by a pure pivoting movement.
- FIG. 2 For example, two theoretical positions of the support rollers 2, 3 to each other.
- the first is denoted by I and illustrates the position of the support roller 3 at the beginning of the winding process, that is, the arrangement of the bearing axes L 2 and L 3 of the two support rollers 2 and 3 in a horizontal plane.
- the embodiment shown by a broken line illustrates the position of the bearing axis L 3 of the second support roller 3 after pivoting about a predefined pivot angle ⁇ .
- the distance a between the axes is constant.
- the guide device 17 is associated with an actuating device 18.
- actuating device 18 This can be carried out arbitrarily.
- hydraulic or pneumatic or mechanically actuable actuating devices or a combination of these are selected.
- the travel of the adjusting device 18 is limited, at least in the sense that the starting position I always includes the horizontal position of the bearing axis L 3 , that is, an arrangement in a plane to the bearing axis L 2 .
- a pivoting about the bearing axis L 2 also is not possible.
- a Verstellwegbegrenzung 19 is provided in the form of a stop.
- the roller 3 may also be provided with an elastic sheath.
- FIG. 2 a particularly advantageous possibility, in which the pivot axis S coincides with the bearing axis L 2 of the first support roller 2, shows the FIG. 3 a theoretically further possibility in which the bearing axis L 2 is arranged quasi eccentric to the pivot axis S for L 3 .
- a movement takes place which describes a circular arc, based on the outer circumference of the first support roller 2, which, however, by a direction component in each case in the vertical direction and in horizontal direction directed towards or away from the first carrier roll 2.
- a corresponding adjusting device 18 is provided.
- the support roller 3 is for this purpose, for example, on the machine frame, in particular the frame of the winding device 1, mounted and is moved over the adjusting device 18 and also here it can be provided with a travel limit.
- FIG. 4 illustrates a further embodiment in which the adjustment of the second support roller 3 is not done by a pure pivoting about a pivot axis S, but by a superposition of a horizontal and a vertical movement, which are illustrated by arrows.
- a movement of the support roller 3 take place such that the second support roller is moved about the outer periphery 14 of the first support roller 2, wherein the distance in the axial direction between the axes L 2 and L 3 rather decreases.
- the horizontal and vertical movement will be realized via appropriate guide means, in particular sliding guides, wherein one is preferably guided adjustably to the other.
- FIG. 5 illustrates in a simplified schematic representation of a further embodiment in which the adjustment movement of the second support roller 3 is realized via a rocker 21.
- the rocker 21 is pivotally mounted about a pivot axis S.
- both support rollers 2, 3 are rotatably mounted.
- the pivot axis S is arranged such that it lies in the neutral position below the axes L 2 and L 3 .
- the distance between the pivot axis S and the bearing axis L 2 of the first support roller 2 is selected as small as possible, so that only a slight displacement of the first support roller 2 takes place. This is raised and the second support roller 3 is lowered during pivoting.
- FIG. 6 clarifies again with reference to a signal flow diagram, an embodiment of the method according to the invention, which can be controlled via a control and / or regulating device.
- the second support roller 3 relative to the first stationary support roller 2 is positioned such that both form a horizontal winding bed 4, that is bearing surfaces or winding nips 13 and 12, which lie in a horizontal plane. This corresponds to the position I of the second support roller 3.
- the loading roller 8 is arranged in this state such that it preferably centrally, that is with its center axis on the vertical to the center line of the winding tube rests. The winding process is started.
- the winding process is ended.
- the winding device 1 can be re-equipped and the support roller 3 is again to spend in the functional position I. This can be done before the start of the next winding process or immediately after removal of the roll 5. Therefore, at the beginning of the winding process to check whether functional position I is set for support roller 3.
- the winding bed 4 in the functional state I is preferably characterized by a connecting plane between the bearing areas on the support rollers 2, 3, which lies in a horizontal plane.
- the change of the coil 5 at least indirectly characterizing size may be the Diameter D itself, a size characterizing the winding speed, for example, the rotational speed n of the first support roller 2 act. At least indirectly means that these quantities are directly or functionally related to the quantity to be determined.
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- Winding Of Webs (AREA)
- Replacement Of Web Rolls (AREA)
Abstract
Description
Die Erfindung betrifft eine Wickelvorrichtung zum Aufwickeln von Bahnen, insbesondere Faserstoffbahnen, vorzugsweise in Form von Papier- oder Kartonbahnen mit zumindest einer ersten und einer zweiten ein Wickelbett bildenden Tragwalze, an denen der Wickel während des Wickelns anliegt, wobei die erste in Faserstoffbahnlaufrichtung liegende Tragwalze von dieser wenigstens teilweise umschlungen ist, während die zweite über Mittel zur Achsverlagerung in ihrer Lage veränderbar einstellbar ist. Die Erfindung betrifft ferner ein Verfahren zum Wickeln einer Faserstoffbahn in einer Wickelvorrichtung.The invention relates to a winding device for winding webs, in particular fibrous webs, preferably in the form of paper or board webs with at least a first and a second winding bed forming a support roller against which the winding during winding, wherein the first lying in the fibrous web running direction support roller of this is at least partially entwined, while the second is changeably adjustable in their position via means for axis displacement. The invention further relates to a method for winding a fibrous web in a winding device.
Wickelvorrichtungen in Form von so genannten Doppeltragwalzenwickelvorrichtungen sind in einer Vielzahl von Ausführungen bekannt. Allen gemeinsam ist, dass der Wickel der aufzuwickelnden Faserstoffbahn von zwei Tragwalzen gestützt wird, wobei die beiden Tragwalzen ein Wickelbett bilden. Einen wesentlichen Parameter für die anschließende Weiterbearbeitung für mit diesen Maschinen gewickelte Faserstoffbahnen stellt die Wickelhärte dar. Besonders bei Faserstoffbahnen in Form von Papierbahnen ist es entscheidend, dass die Wickelhärte über den gesamten Rollendurchmesser durch einen bestimmten Verlauf charakterisiert ist. Dabei soll die Wickelhärte idealerweise über den gesamten Rollendurchmesser konstant sein, hilfsweise aber von einem gewissen Anfangswert gleichmäßig auf einen Endwert abfallen. Ein derartiges Verhalten ist jedoch nur erreichbar, wenn zusätzliche Maßnahmen ergriffen werden, da ansonsten mit zunehmendem Rollendurchmesser der Liniendruck zwischen der Rolle und der einzelnen Tragwalze beziehungsweise den Tragwalzen sich weiter vergrößert und damit auch die auftretende Wickelhärte. Daher werden so genannte Belastungswalzen verwendet, die mit ihren Achsen parallel zur Tragwalze angeordnet sind, wobei mit jenen auf den entstehenden Wickel ein Anpressdruck ausgeübt wird. Dieser ist hinsichtlich seiner Größe einstellbar und kann gesteuert werden, wobei der Anpressdruck in der Regel am Anfang der Wicklung sehr groß gewählt wird und mit zunehmendem Rollengewicht geringer wird. Derartige Belastungswalzen sind daher entweder linear geführt oder aber lenkergeführt. Bei lenkergeführten Ausführungen erfolgt die Einstellbarkeit der Anpresskraft über einen verschwenkbaren Lenker. Die Belastungswalze wird vor Wickelbeginn auf die Leerhülse abgesenkt und drückt diese mit einer bestimmten Kraft in das Wickelbett. Beginnt nun der Wickelprozess und wächst demgemäß der Wickeldurchmesserr, so wird die Kraft, mit welcher die Belastungswalze gegen den Wickel gepresst wird, zunächst noch gesteigert. Erst ab Erreichen eines bestimmten Durchmessers genügt das Eigengewicht des Wickels, um ein gutes Wickelergebnis zu erzielen und die Anpresskraft wird nicht mehr benötigt. Die Belastungswalze mit zunehmendem Wickeldurchmesser immer weiter von der Scheitellinie des Wickels wegbewegt. Da die Belastungswalze in der Regel nicht auf der Seite auf den Wickel wirkt, an der der Zulauf der Faserstoffbahn erfolgt, sondern auf der Seite der zweiten Tragwalze, führt dies zu einer starken Erhöhung des Anteils der über die Belastungswalze aufgebrachten Kraft auf die erste Tragwalze, was zur Verschlechterung des Härteverlaufes führt.Winding devices in the form of so-called Doppeltragwalzenwickelvorrichtungen are known in a variety of designs. All have in common is that the winding of the wound fibrous web is supported by two support rollers, wherein the two support rollers form a winding bed. A substantial parameter for the subsequent further processing for fibrous webs wound with these machines is the winding hardness. Especially with fibrous webs in the form of paper webs, it is crucial that the winding hardness over the entire roll diameter is characterized by a certain course. Ideally, the winding hardness should be constant over the entire roll diameter, but alternatively fall evenly from a certain initial value to a final value. However, such behavior is only achievable if additional measures are taken, since otherwise with increasing roll diameter of the line pressure between the roller and the individual support roller or the support rollers further increases and thus also the occurring Winding hardness. Therefore, so-called loading rollers are used, which are arranged with their axes parallel to the support roller, wherein with those on the resulting winding a contact pressure is exerted. This is adjustable in size and can be controlled, the contact pressure is usually chosen very large at the beginning of the winding and is smaller with increasing roll weight. Such load rollers are therefore either linearly guided or handlebar guided. When handlebar-guided versions, the adjustability of the contact force via a pivotable handlebar. The loading roller is lowered before winding on the empty tube and pushes them with a certain force in the winding bed. Now starts the winding process and grows accordingly the Wickeldurchmesserr, so the force with which the load roller is pressed against the winding, initially increased. Only when reaching a certain diameter, the weight of the coil sufficient to achieve a good winding result and the contact force is no longer needed. As the winding diameter increases, the load roll moves farther and farther away from the apex line of the roll. Since the load roller usually acts not on the side on the winding, at which the feed of the fibrous web takes place, but on the side of the second support roller, this leads to a strong increase in the proportion of the force applied via the loading roller force on the first support roller, which leads to a deterioration of the hardening process.
Ferner sind auch Maßnahmen zur Beeinflussung der Wickelhärte dahingehend bekannt, dass die Lage der Tragwalzen zueinander verändert wird. Eine derartige gattungsgemäße Ausführung einer Wickelvorrichtung ist aus
Der Erfindung liegt daher die Aufgabe zugrunde, eine Wickelvorrichtung der eingangs genannten Art derart weiterzuentwickeln, dass auch bei verlagerbarer, insbesondere lenkergeführten Belastungswalze möglichst eine gleichmäßige Wickeldichte über den gesamten Wickel erzielt wird.The invention is therefore based on the object, a winding device of the type mentioned in such a way that even with displaceable, in particular handlebar-guided load roller as possible a uniform winding density over the entire winding is achieved.
Die erfindungsgemäße Lösung ist durch die Ansprüche 1 und 12 charakterisiert. Vorteilhafte Ausgestaltungen sind in den Unteransprüchen beschrieben.The solution according to the invention is characterized by
Eine Wickelvorrichtung zum Wickeln von Faserstoffbahnen in Form von Papier-oder Kartonbahnen mit einer ersten ortsfesten und einer zweiten Tragwalze, an denen der Wickel während des Wickelns anliegt, umfasst Achsverlagerungsmittel zum achsparallelen Verlagern der Achse der in Faserstoffbahnlaufrichtung zweiten Tragwalze gegenüber der ersten Tragwalze, wobei die Verlagerung erfindungsgemäß derart erfolgt, dass während des Betriebes die Achse der in Faserstoffbahnlaufrichtung zweiten Tragwalze in vertikaler Richtung derart angeordnet beziehungsweise verlagerbar ist, dass der zwischen Wickel und der zweiten Tragwalze gebildete Wickelspalt in einer Ebene oder unterhalb des anderen, zwischen erster Tragwalze und Wickel gebildeten Wickelspaltes angeordnet ist, wobei die zweite Tragwalze gegenüber der ersten Tragwalze über die Mittel zur Achsverlagerung absenkbar ist. Durch die Möglichkeit des Absenkens der zweiten Tragwalze wird das Gewicht des aufgewickelten Wickels zunehmend auf die zweite Tragwalze verlagert, so dass der Liniendruck im zwischen der ersten Tragwalze und dem Wickel gebildeten Spalt niedrig gehalten werden kann, vorzugsweise auf einem konstanten Wert, so dass die Wickelhärte nicht durch hohe Liniendrücke im ersten Pressspalt negativ beeinflusst wird. Gemäß einer besonders vorteilhaften Ausführung erfolgt die Verstellung auf einem Kreisbogen, das heißt durch Verschwenken. Dazu umfassen die Mittel zur Achsverlagerung eine Führungseinrichtung für die zweite Tragwalze, welche mittels einer Schwenkeinrichtung um die Schwenkachse verschwenkbar ist. Gemäß einer besonders vorteilhaften Ausführung wird die Schwenkachse von der Lagerachse beziehungsweise Achse der ersten Tragwalze gebildet. In diesem Fall erfolgt die Verschiebung um den Außenumfang der ersten Tragwalze auf einem Kreisbogen immer im gleichmäßigen Abstand, wobei hier bei automatischer Absenkung und Belastung mittels einer Belastungswalze ohne erheblichen Zusatzaufwand bei Vergrößerung des Wickels, das heißt in Abhängigkeit auch von der Zufuhrgeschwindigkeit der Faserstoffbahn und der Antriebsdrehzahl der einzelnen Tragwalzen, eine Zunahme der Linienkraft im zweiten Spalt, der zwischen dem Wickel und der zweiten Tragwalze gebildet wird, erzielt wird, während die Linienkraft im ersten Spalt zwischen Wickel und erster Tragwalze konstant gehalten werden kann, ohne aufwendige Steuerungsalgorithmen zur Ermittlung der Stellgröße zur Ansteuerung der Stelleinrichtung.A winding device for winding fibrous webs in the form of paper or board webs with a first stationary and a second support roller, which abuts the winding during winding comprises Achsverlagerungsmittel for axially parallel displacement of the axis in the fibrous web running direction second support roller relative to the first support roller, wherein the Displacement according to the invention takes place in such a way that during operation the axis of the second carrier roll in the fibrous web direction in the vertical direction is arranged or displaceable such that the winding nip formed between the winding and the second support roll in a plane or below the other, formed between the first support roll and winding lap is arranged, wherein the second support roller relative to the first support roller via the means for axial displacement is lowered. The possibility of lowering the second support roller, the weight of the wound coil is increasingly shifted to the second support roller, so that the line pressure in the gap formed between the first support roller and the winding can be kept low, preferably at a constant value, so that the winding hardness is not adversely affected by high line pressures in the first press nip. According to a particularly advantageous embodiment, the adjustment takes place on a circular arc, that is by pivoting. For this purpose, the means for axle displacement comprise a guide device for the second support roller, which is pivotable about the pivot axis by means of a pivoting device. According to a particularly advantageous embodiment, the pivot axis is formed by the bearing axis or axis of the first support roller. In this case, the displacement around the outer circumference of the first support roller on a circular arc is always at a uniform distance, in this case with automatic lowering and load by means of a loading roller without significant additional effort when enlarging the coil, that is, depending on the feed rate of the fibrous web and the Drive speed of the individual support rollers, an increase in line force in the second gap formed between the winding and the second support roller is achieved, while the line force in the first gap between the winding and the first support roller can be kept constant, without complex control algorithms for determining the manipulated variable for controlling the adjusting device.
Bei dieser Ausführung ist gemäß einer besonders vorteilhaften Ausgestaltung die Führungseinrichtung für die Tragwalze an der Lagerachse der ersten Tragwalze gelagert. Dadurch ist eine Achsparallelität zwischen den Tragwalzen auf einfache Art und Weise gewährleistet.In this embodiment, the guide means for the support roller is mounted on the bearing axis of the first support roller according to a particularly advantageous embodiment. As a result, an axis parallelism between the support rollers is ensured in a simple manner.
Denkbar ist es jedoch auch, eine andere Schwenkachse als die Lagerachse der ersten Tragwalze zu wählen. In diesem Fall ist die Schwenkachse jedoch vorzugsweise ebenfalls in einem Bereich angeordnet, der beim Verschwenken eine horizontale Bewegung in Richtung zur ersten Tragwalze ermöglicht.It is also conceivable, however, to choose a different pivot axis than the bearing axis of the first support roller. In this case, however, the pivot axis is preferably also arranged in a region which allows a horizontal movement in the direction of the first support roller during pivoting.
Gemäß einer weiteren dritten Ausführungsform besteht die Möglichkeit, die Verschiebung beziehungsweise Verlagerung der zweiten Tragwalze durch Überlagerung einer Horizontalen in einer Vertikalbewegung zu realisieren. In diesem Fall ist die als Lagerachse fungierende Achse der zweiten Tragwalze beispielsweise über zwei Führungen gelagert. Diese Lösung bietet den Vorteil, dass hier eine freie Einstellbarkeit der Lage und damit auch des Anteils der von der zweiten Tragwalze abzustützenden Auflagekraft einstellbar ist. Diese freie Einstellbarkeit ermöglicht es, auch den Liniendruck an der ersten Tragwalze gezielt einzustellen.According to a further third embodiment, it is possible to realize the displacement or displacement of the second support roller by superimposing a horizontal in a vertical movement. In this case, acting as a bearing axis axis of the second support roller stored for example via two guides. This solution has the advantage that here a free adjustability of the position and thus also the proportion of the supporting force to be supported by the second support roller is adjustable. This free adjustability makes it possible to selectively adjust the line pressure on the first support roller.
Die beiden Tragwalzen weisen vorzugsweise den gleichen Durchmesser auf. Dies bietet den Vorteil einer einfachen Einstellbarkeit. Denkbar ist es jedoch auch, die zweite Tragwalze größer auszuführen, als die erste, wodurch hier noch einmal eine Vergrößerung der Auflagekraft erzielt werden kann. Ferner besteht die Möglichkeit, die zweite Tragwalze mit einem weichen Walzenmantel zu versehen. In diesem Fall bildet sich kein Pressspalt mit Linienberührung aus, sondern ein flächiger Pressspalt, so dass hier die Flächenpressung in dem zweiten Wickelspalt zwischen dem Wickel und der zweiten Tragwalze erheblich reduziert werden kann, was positiv für die Wickelgüte ist.The two support rollers preferably have the same diameter. This offers the advantage of easy adjustability. However, it is also conceivable to make the second carrier roll larger than the first one, as a result of which an increase in the bearing force can once again be achieved here. It is also possible to provide the second support roller with a soft roll shell. In this case, no press nip forms with line contact, but a flat press nip, so that here the surface pressure in the second winding nip between the winding and the second support roller can be significantly reduced, which is positive for the winding quality.
Gemäß einer weiteren Ausführung können die erforderlichen Verhältnisse auch durch Verlagerung beider Tragwalzen eingestellt werden. Diese sind dazu im einfachsten Fall auf einer Schwinge gelagert, deren Schwenkachse sich unterhalb der Lagerachsen beider Tragwalzen in der Neutralstellung befindet und die parallel zu diesen angeordnet ist. Vorzugsweise ist die Schwenkachse der Schwinge im Bereich der Lagerachse der ersten Tragwalze angeordnet.According to a further embodiment, the required ratios can also be adjusted by shifting both support rollers. These are stored in the simplest case on a rocker whose pivot axis is below the bearing axes of both support rollers in the neutral position and which is arranged parallel to these. Preferably, the pivot axis of the rocker is arranged in the region of the bearing axis of the first support roller.
Die Andrückung des Wickels erfolgt mittels einer entsprechenden Belastungswalze. Diese ist vorzugsweise lenkergeführt, das heißt, gegenüber einer über den Lenker voreinstellbaren Kraft wird dieser bei Vergrößerung des Wickels gegen den Lenker gedrückt und wandert damit in radialer Richtung bezogen auf die Wickelachse nach außen.The pressing of the roll by means of a corresponding load roller. This is preferably handlebar-guided, that is, compared to a pre-settable on the handlebar force this is pressed upon enlargement of the coil against the handlebars and thus moves in the radial direction relative to the winding axis to the outside.
Das erfindungsgemäße Verfahren zum Wickeln einer Faserstoffbahn, bei welcher der Wickel an einer ersten und zweiten Tragwalze während des Wickelvorganges anliegt, wobei die erste Tragwalze von der Faserstoffbahn teilweise umschlungen ist und ortsfest ausgeführt ist, ist dadurch charakterisiert, dass die Wickelhärte in Abhängigkeit der Zunahme der Wickelgröße, insbesondere des Durchmessers, die zweite Tragwalze gegenüber der ersten Tragwalze aus einer Position, in welcher diese mit ihrer Achse in einer Ebene oder unterhalb der Achse der ersten Walze liegt, abgesenkt wird.The inventive method for winding a fibrous web, wherein the winding is applied to a first and second support roller during the winding process, wherein the first support roller partially wrapped by the fibrous web is stationary and is carried out, characterized in that the winding hardness depending on the increase of the winding size, in particular the diameter, the second support roller relative to the first support roller from a position in which this with its axis in a plane or below the axis of the first Roller is lowered, is lowered.
Gemäß einer besonders vorteilhaften Ausführung wird die zweite Lagerachse der Tragwalze verschwenkt. Dadurch wird eine gleichmäßige Verlagerung der zweiten Tragwalze erzielt. Das Verschwenken erfolgt vorzugsweise um die Lagerachse der ersten Tragwalze, wobei in diesem Fall eine akkurate achsparallele Führung gegeben ist.According to a particularly advantageous embodiment, the second bearing axis of the support roller is pivoted. As a result, a uniform displacement of the second support roller is achieved. The pivoting is preferably carried out about the bearing axis of the first support roller, in which case an accurate axis-parallel guidance is given.
Der Wickelvorgang wird mit konstantem Anpressdruck an der Druckwalze ausgeübt. Ferner kann der Anpressdruck gesteuert werden.The winding process is performed with constant contact pressure on the pressure roller. Furthermore, the contact pressure can be controlled.
Dabei wird erfindungsgemäß eine Absenkung nicht sofort vorgenommen, sondern erst wenn der Wickel eine vordefinierte Mindestgröße erreicht hat und die Auflagekraft in einzelnen Wickespalten einen bestimmten Wert nicht überschreitet. In diesem Fall wird eine die Zunahme des Durchmessers des Wickels wenigstens mittelbar beschreibende Größe, beispielsweise der Durchmesser oder aber die Faserstoffbahnzulaufgeschwindigkeit beziehungsweise die Antriebsgeschwindigkeit der Tragwalzen, erfasst und in Abhängigkeit dieser eine Stellgröße zur Ansteuerung einer Stelleinrichtung für die zweite Tragwalze zur Änderung der Lage erzeugt, wobei die Lageänderung immer achsparallel erfolgt.Here, according to the invention, a reduction is not made immediately, but only when the winding has reached a predefined minimum size and the bearing force in individual Wickespalten does not exceed a certain value. In this case, an increase in the diameter of the roll at least indirectly descriptive size, for example, the diameter or the fibrous web feed speed or the drive speed of the support rollers, detected and generated in response to this a manipulated variable for driving a setting device for the second support roller to change the position, wherein the change in position always takes place parallel to the axis.
Die erfindungsgemäße Lösung ist nachfolgend anhand von Figuren erläutert. Darin ist im Einzelnen folgendes dargestellt:
- Figur 1a und 1b
- verdeutlichen in schematisiert vereinfachter Darstellung den Grundaufbau und die Grundproblematik einer Vorrichtung zum Wickeln einer Faserstoffbahn gemäß dem Stand der Technik;
- Figur 1c - 1e
- verdeutlichen in schematisiert vereinfachter Darstellung den Grundaufbau und das Grundprinzip einer erfindungsgemäßen Vorrichtung und eines erfindungsgemäßen Verfahrens zum Wickeln einer Faserstoffbahn;
- Figur 1f
- verdeutlicht anhand eines Diagrammes den Verlauf der Streckenlast im ersten Wickelspalt gemäß der Ausführung aus dem Stand der Technik und der erfindungsgemäßen Ausführung;
Figur 2- verdeutlicht in schematisiert vereinfachter Darstellung eine besonders vorteilhafte Ausführung einer Achsverlagerung der zweiten Tragwalze;
Figur 3- verdeutlicht eine alternative
Ausführung zu Figur 2 ; - Figur 4
- verdeutlicht eine weitere alternative Ausführung zur Achsverlagerung gemäß
Figur 2 durch Überlagerung einer horizontalen und vertikalen Bewegung; Figur 5- verdeutlicht eine weitere alternative Ausführung zur Achsverlagerung gemäß
Figur 2 mittels einer Schwinge; Figur 6- verdeutlicht anhand eines Signalflussbildes ein erfindungsgemäßes Verfahren zum Wickeln einer Faserstoffbahn, insbesondere zur Steuerung der Wickelhärte.
- FIGS. 1a and 1b
- illustrate in a schematic simplified representation of the basic structure and the basic problem of a device for winding a fibrous web according to the prior art;
- Figure 1c - 1e
- illustrate in a schematic simplified representation of the basic structure and the basic principle of a device according to the invention and a method according to the invention for winding a fibrous web;
- FIG. 1f
- illustrated by a diagram of the course of the line load in the first winding nip according to the embodiment of the prior art and the embodiment of the invention;
- FIG. 2
- illustrates in a schematic simplified representation of a particularly advantageous embodiment of an axial displacement of the second support roller;
- FIG. 3
- illustrates an alternative embodiment too
FIG. 2 ; - FIG. 4
- illustrates a further alternative embodiment for axle displacement according to
FIG. 2 by overlaying a horizontal and vertical movement; - FIG. 5
- illustrates a further alternative embodiment for axle displacement according to
FIG. 2 by means of a rocker; - FIG. 6
- illustrates a method according to the invention for winding a fibrous web, in particular for controlling the winding hardness, by means of a signal flow diagram.
Die
Die Tragwalzen 2 und 3 weisen vorzugsweise den gleichen Durchmesser D2 und D3 auf. Die Achsen L2, L3, die den Drehachsen entsprechen, der Tragwalzen 2 und 3 liegen dann in einer Ebene, die vorzugsweise horizontal ausgerichtet ist, das heißt mit der Horizontalen einen Winkel von 0° bildet. Beide Achsen der Tragwalzen 2 und 3, die hier mit L2 und L3 bezeichnet sind, sind achsparallel zueinander angeordnet. Diese bilden mit der Hülse 7 und später dem entstehenden Wickel 5 jeweils einen Wickelspalt 12, 13. Die Hülse 7, um welche der Wickel 5 gebildet wird, liegt in diesem Betriebszustand mittig zwischen den beiden Tragwalzen 2 und 3 im Wickelbett 4, so dass die Auflagekraft der Hülse an jeder der einzelnen Tragwalzen 2 und 3 gleich groß ist. Die Auflagekräfte sind hier mittels Pfeil dargestellt und mit FA2 für die Tragwalze 2 und FA3 für die Tragwalze 3 bezeichnet. Die Belastungswalze 8 wirkt senkrecht und mittig auf die Hülse 7, das heißt, die resultierende Kraft der Belastungswalze 8 auf die Hülse 7 liegt in einer Senkrechten, vorzugsweise senkrecht zur Verbindungsebene zwischen den Längsachsen L2 und L3 der Tragwalzen 2 und 3. Die zweite Tragwalze 3 fungiert als Abstützwalze zur Ausbildung des Wickelbettes 4, während die erste Tragwalze 2 zusätzlich auch der Führung der Faserstoffbahn 6 zum Wickel 5 dient. Bis zum Erreichen einer vordefinierten Größe, insbesondere eines vordefinierten Durchmessers Ddefiniert des Wickels 5, wird die Belastung der Belastungswalze 8 verringert. Diese ist dazu in ihrer Lage veränderlich gegenüber der Lage der beiden Tragwalzen 2 und 3, insbesondere der Längsachsen L2 und L3 der Tragwalzen 2 und 3. Die Belastungswalze 8 ist lenkergeführt. Dazu wird die Belastungswalze 8 von einer um eine Achse A schwenkbare Traverse 10 gehalten und bezüglich dieser in Richtung des Pfeils geführt, um in einer den Tragwalzen 2, 3 etwa gegenüber liegenden Position an dem bereits hergestellten Wickel 5 mit einstellbarer Kraft gedrückt zu werden. Dabei folgt die Einheit aus Traverse 10 und Belastungswalze 8 mit zunehmendem Durchmesser D des Wickels 5 auf einem kreissegmentförmigen Weg dem Außenumfang 11 des Wickels 5. Dazu ist der Belastungswalze 8 eine Stelleinrichtung 9 zugeordnet, die die Traverse 10 und die Verstellmittel, insbesondere die Mittel zur Lageveränderung der Traverse 10 umfassen. Die Drehachse A für die Traverse 10 und damit den diese führenden Lenker 20 ist bezogen auf die Scheitellinie des entstehenden Wickels 5 auf der Seite der zweiten Tragwalze 3 angeordnet, das heißt in axialer Richtung in einem Bereich zwischen der Senkrechten zur Mittellinie der Hülse 7 im Anfangszustand beziehungsweise der Trennebene zwischen den Tragwalzen 2, 3 und einem Bereich axial neben der zweiten Tragwalze 3 auf der von der ersten Tragewalze 2 abgewandten Seite. Die Drehachse A ist ferner oberhalb der Lagerachsen L2, L3 der ersten und zweiten Tragwalze 2, 3 angeordnet. Wird eine vordefinierte Wickelgröße, insbesondere ein vordefinierter Wickeldurchmesser Ddefiniert des Wickels 5 erreicht, ist eine weitere Verringerung der Kraft der Belastungswalze 8 gegenüber dem Außenumfang 11 des Wickels 5, an welchem diese direkt angreift, nicht unbedingt erforderlich. Diese kann als Restkraft konstant gehalten werden. Diese Restbelastung ist technologisch sinnvoll, jedoch nicht unbedingt zwangsläufig erforderlich, das heißt es kann auch eine Verringerung der Belastung bis auf Null erfolgen. Aufgrund der noch wirkenden Anpresskraft, die gegenüber dem Wickel 5 wirkt und aufgrund der außermittigen, das heißt in einem Winkel zur Senkrechten durch die Längsachse L5 des Wickels liegenden Kraftwirkungslinie bewirkt die Kraft F8 der Belastungswalze 8 mit zunehmender Wickelgröße eine Vergrößerung der Linienkraft im zwischen dem Wickel 5 und erster Tragwalze 2 im zwischen diesen gebildeten Wickelspalt 12 bewirken, da aufgrund der außermittigen Krafteinleitung über die Belastungswalze 8 am Wickel 5 der größere Kraftanteil auf der ersten Tragwalze 2 abgestützt werden würde. Diese dort vorliegende Kraft in Form der Auflagekraft FA2 ist dabei größer als die, welche sich aus der Gewichtskraftkomponente des Wickels 5 und dem Anteil der Kraftkomponente aus der Belastung der Belastungswalze 8 und der zweiten Tragwalze 3 im Spalt 13 zwischen dem Wickel 5 und dem Außenumfang 15 der zweiten Tragwalze einstellt. Die Auflagekraft FA3 ist dabei kleiner als die Auflagekraft FA2 im ersten Spalt 12, wie in
Bezüglich der Verstellbarkeit der zweiten Tragwalze 3 bestehen eine Mehrzahl von Möglichkeiten. Diese wird dabei um den Außenumfang 14 der ersten Tragwalze 2 bewegt. Dazu sind der Tragwalze 3 Mittel 16 zur Achsverlagerung zugeordnet, umfassend eine Stelleinrichtung 18. Die Bewegung erfolgt vorzugsweise immer derart, dass die Linienkraft und damit die Auflagekraft FA2 für den Wickel im Spalt 12 konstant ist. Für die Realisierung der Verschiebung beziehungsweise Bewegung der zweiten Tragwalze 3 hinsichtlich der Achse L3 in einem Abstand a zur Achse L2 bestehen eine Mehrzahl von Möglichkeiten. Diese kann durch Überlagerung linearer, vertikaler und horizontaler Bewegungen oder aber als eine reine Schwenkbewegung realisiert werden. Vorzugsweise erfolgt die Bewegung um den Außenumfang 14 der Tragwalze 2 auf einer Kreisbahn, wobei gemäß einer besonders vorteilhaften Ausführung die Bewegung der Achse L3 durch Verschwenken um die Achse L2 der ersten Tragwalze 2 erfolgt. In diesem Fall, wie in der
Verdeutlicht die
Die
Die
- 11
- Wickelvorrichtungwinder
- 22
- Erste TragwalzeFirst carrier roll
- 33
- Zweite TragwalzeSecond carrier roll
- 44
- Wickelbettwinding bed
- 55
- Wickelreel
- 66
- FaserstoffbahnFibrous web
- 77
- Hülseshell
- 88th
- Belastungswalzeloading roll
- 99
- Stelleinrichtungsetting device
- 1010
- Traversetraverse
- 1111
- Außenumfang des WickelsOuter circumference of the coil
- 1212
- Spaltgap
- 1313
- Spaltgap
- 1414
- Außenumfang der ersten TragwalzeOuter circumference of the first support roller
- 1515
- Außenumfang der zweiten TragwalzeOuter circumference of the second support roller
- 1616
- Mittel zur AchsverlagerungMeans for axle displacement
- 1717
- Führungseinrichtungguide means
- 1818
- Stelleinrichtungsetting device
- 1919
- Stellwegbegrenzunglimitation of travel
- 2020
- Lenkerhandlebars
- 2121
- Schwingewing
- AA
- Schwenkwinkelswivel angle
- L2 L 2
- Achseaxis
- L3 L 3
- Achseaxis
- FA2 F A2
- AuflagekraftTracking force
- FA3 F A3
- AuflagekraftTracking force
- DD
- Durchmesserdiameter
- E2'3 E 2'3
- Ebenelevel
- SS
- Schwenkachseswivel axis
Claims (18)
dadurch gekennzeichnet,
dass die Achse (L3) der in Faserstoffbahnlaufrichtung zweiten Tragwalze (3) während des Betriebes in vertikaler Richtung derart angeordnet ist, dass der zwischen Wickel (5) und der zweiten Tragwalze (3) gebildete Wickelspalt (13) in einer Ebene oder unterhalb des anderen Wickelspaltes (12) angeordnet ist und die Achse der zweiten Tragwalze (3) gegenüber der ersten Tragwalze (2) über die Mittel (16) zur Achsverlagerung absenkbar ist.Winding device (1) for winding webs, in particular fibrous webs (6), at least a first and a second support roller (2, 3), which form a winding bed (4) for receiving a winding roll and where the winding (5) during the winding process forming winding gaps (12, 13) and means (16) for axis displacement of an axis (L 2 , L 3 ) of a support roller (2, 3) during the winding process,
characterized,
in that the axis (L 3 ) of the second carrier roll (3) in the fibrous web running direction is arranged during operation in the vertical direction such that the winding nip (13) formed between the roll (5) and the second carrier roll (3) lies in a plane or below the another winding gap (12) is arranged and the axis of the second support roller (3) relative to the first support roller (2) via the means (16) can be lowered to the axis displacement.
dadurch gekennzeichnet,
dass die zweite Tragwalze (3) um den Außenumfang (14) der ersten Tragwalze (2) verschwenkbar ist.Winding device (1) according to claim 1,
characterized,
in that the second carrier roll (3) is pivotable about the outer circumference (14) of the first carrier roll (2).
dadurch gekennzeichnet,
dass die zweite Tragwalze (3) an einer Führungsvorrichtung (17) gelagert ist, die über eine Schwenkeinrichtung an einer Schwenkachse (S) gelagert ist, die achsparallel zur Lagerachse (L2) der ersten Tragwalze (2) ist.Winding device (1) according to claim 2,
characterized,
in that the second carrier roll (3) is mounted on a guide device (17) which is mounted on a pivoting axis (S) via a pivoting device which is axially parallel to the bearing axis (L 2 ) of the first carrier roll (2).
dadurch gekennzeichnet,
dass die Schwenkachse (S) von der Achse (L2) der ersten Tragwalze (2) gebildet wird.Winding device (1) according to claim 3,
characterized,
in that the pivot axis (S) is formed by the axis (L 2 ) of the first carrier roll (2).
dadurch gekennzeichnet,
dass die erste und die zweite Tragwalze (2, 3) an einer Schwinge (21) drehbar gelagert sind, die um eine Schwenkachse (S) verschwenkbar ist, welche außerhalb der Achsen (L2, L3) der Tragwalzen (2, 3) angeordnet ist.Winding device (1) according to claim 2,
characterized,
in that the first and the second support rollers (2, 3) are rotatably mounted on a rocker (21) which is pivotable about a pivot axis (S) which is outside the axes (L 2 , L 3 ) of the support rollers (2, 3). is arranged.
dadurch gekennzeichnet,
dass die Lagerachse (L3) der zweiten Tragwalze (3) an einer Vertikalführung gelagert ist, welche an einer Horizontalführung gelagert ist.Winding device (1) according to one of claims 1 to 3,
characterized,
that the bearing axis (L 3 ) of the second support roller (3) is mounted on a vertical guide, which is mounted on a horizontal guide.
dadurch gekennzeichnet,
dass der zweiten Tragwalze (3) eine Stelleinrichtung (18) zugeordnet ist, umfassend eine Verstellwegbegrenzung (19).Winding device according to one of claims 1 to 6,
characterized,
in that an adjusting device (18) is associated with the second carrier roller (3), comprising an adjustment path limitation (19).
dadurch gekennzeichnet,
dass am Außenumfang des Wickels (5) eine Belastungswalze (8) angeordnet ist, die an einer Traverse (10) gelagert ist und über einen um eine Achse (A) schwenkbaren Lenker geführt ist, wobei diese eine Gegenkraft zur durch den Wickel (5) aufgebrachten Kraft bewirkt.Winding device (1) according to one of claims 1 to 7,
characterized,
that a load roller (8) is arranged on the outer circumference of the roll (5) mounted on a cross member (10) is mounted and guided via a about an axis (A) pivotable striker, said a counter force to by the winding (5) applied force causes.
dadurch gekennzeichnet,
dass die in Faserstoffbahnlaufrichtung erste Tragwalze (2) kleiner als die zweite Tragwalze (3) ist und die zweite Tragwalze (3) derart in ihrer Ausgangsposition angeordnet ist, dass die Achse (L3) gegenüber der Achse (L2) der ersten Tragwalze (2) in vertikaler Richtung in einem Abstand unterhalb der ersten Tragwalze (2) angeordnet ist, der wenigstens der Radiendifferenz zwischen den beiden Tragwalzen (2, 3) entspricht.Winding device (1) according to one of claims 1 to 8,
characterized,
in that the first carrier roll (2) in the fibrous web running direction is smaller than the second carrier roll (3) and the second carrier roll (3) is arranged in its starting position such that the axis (L 3 ) is opposite the axis (L 2 ) of the first carrier roll ( 2) in the vertical direction at a distance below the first support roller (2) is arranged, which corresponds at least to the difference in radius between the two support rollers (2, 3).
dadurch gekennzeichnet,
dass die Tragwalzen (2, 3) einen gleichen Durchmesser (D2, D3) aufweisen.Winding device (1) according to one of claims 1 to 8,
characterized,
in that the carrier rollers (2, 3) have the same diameter (D2, D3).
dadurch gekennzeichnet,
dass die zweite Tragwalze (3) einen elastischen Mantelbezug aufweist.Winding device (1) according to one of claims 1 to 10,
characterized,
that the second carrier roll (3) has an elastic jacket cover.
dadurch gekennzeichnet,
dass dieser eine Steuer- und/oder Regelvorrichtung zur Steuerung der Absenkung der zweiten Tragwalze (3) in Abhängigkeit einer die Auflagekraft im ersten Wickelspalt (12) wenigstens mittelbar beschreibenden Größe zugeordnet ist.Winding device (1) according to one of claims 1 to 11,
characterized,
in that it is associated with a control and / or regulating device for controlling the lowering of the second carrier roller (3) as a function of a variable which at least indirectly describes the contact force in the first winding gap (12).
dadurch gekennzeichnet,
dass während des Wickelvorganges in Abhängigkeit der Zunahme der Wickelgröße die zweite Tragwalze (3) gegenüber der ersten Tragwalze (2) abgesenkt wird, so dass der zweite Spalt (13) immer unterhalb des ersten Spaltes (12) zwischen Tragwalze (2, 3) und Wickel (5) angeordnet ist.A method for winding a fibrous web in a winding device, wherein the winding (5) on a first and a second support roller (2, 3) during the winding process is applied, wherein the first lying in the winding direction support roller (2) of the fibrous web (6) partially is entwined, wherein the axis of the first support roller (2) is stationary in position, while the axis (L 3 ) of the second support roller (3) in its position relative to the first support roller (2) is variable,
characterized,
that during the winding process in response to the increase in the winding size, the second support roller (3) relative to the first support roller (2) is lowered, so that the second gap (13) always below the first gap (12) between the support roller (2, 3) and Winding (5) is arranged.
dadurch gekennzeichnet,
dass die zweite Tragwalze (3) entlang eines Kreisbogens geführt wird.Method according to claim 13,
characterized,
that the second support roller (3) is guided along a circular arc.
dadurch gekennzeichnet,
dass das Absenken durch Überlagerung einer horizontalen und vertikalen Bewegung erfolgt.Method according to claim 13,
characterized,
that the lowering takes place by superimposing a horizontal and vertical movement.
dadurch gekennzeichnet,
dass das Absenken gesteuert wird.Method according to one of claims 13 to 15,
characterized,
that the lowering is controlled.
dadurch gekennzeichnet,
dass wenigstens eine, die Wickelgröße beschreibende Größe, wenigstens mittelbar erfasst wird und die Änderung der Lage der zweiten Tragwalze (3) als eine Funktion einer vordefinierten einzuhaltenden Auflagekraft an der ersten Tragwalze (2) gesteuert und/oder geregelt wird.Method according to claim 16,
characterized,
in that at least one variable describing the winding size is detected, at least indirectly, and the change in the position of the second carrier roll (3) is controlled and / or regulated as a function of a predefined contact force to be maintained on the first carrier roll (2).
dadurch gekennzeichnet,
dass die Auflagekraft an der ersten Tragwalze (2) über den gesamten Wickelvorgang konstant gehalten wird.Method according to claim 16 or 17,
characterized,
that the contact force on the first support roller (2) is kept constant over the entire winding process.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710034179 DE102007034179A1 (en) | 2007-07-23 | 2007-07-23 | Winding device and method for winding fibrous webs in a winding device |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2019060A2 true EP2019060A2 (en) | 2009-01-28 |
EP2019060A3 EP2019060A3 (en) | 2009-11-04 |
EP2019060B1 EP2019060B1 (en) | 2013-04-24 |
Family
ID=39855256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20080160598 Revoked EP2019060B1 (en) | 2007-07-23 | 2008-07-17 | Winding device and winding method for webs of fibrous material in a winding device |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2019060B1 (en) |
DE (1) | DE102007034179A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105565026A (en) * | 2016-02-01 | 2016-05-11 | 太仓市其盛化纤厂 | Winding device for textile machinery |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0640544A1 (en) | 1993-08-24 | 1995-03-01 | Beloit Technologies, Inc. | Method and device for winding a web |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3817467A (en) * | 1969-06-11 | 1974-06-18 | J Dambroth | Device for continuous winding of continuously running webs of material |
DE2313943A1 (en) * | 1973-03-21 | 1974-09-26 | Monforts Fa A | TWO-ROLLER DOCK |
FI70195C (en) * | 1984-04-11 | 1986-09-15 | Waertsilae Oy Ab | PROCEDURE FOR EXPRESSION OF MATERIALS SPECIFICALLY IN PAPER SHEETS |
ATE194583T1 (en) * | 1992-03-26 | 2000-07-15 | Voith Gmbh J M | WINDING MACHINE FOR WINDING A WEB, PARTICULARLY A PAPER WEB |
DE29610199U1 (en) * | 1996-06-13 | 1997-10-16 | Beloit Technologies, Inc., Wilmington, Del. | Cross cutting device for winding machines |
DE102005000031A1 (en) * | 2005-04-07 | 2006-10-12 | Voith Paper Patent Gmbh | Carrier roll winding machine |
-
2007
- 2007-07-23 DE DE200710034179 patent/DE102007034179A1/en not_active Withdrawn
-
2008
- 2008-07-17 EP EP20080160598 patent/EP2019060B1/en not_active Revoked
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0640544A1 (en) | 1993-08-24 | 1995-03-01 | Beloit Technologies, Inc. | Method and device for winding a web |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105565026A (en) * | 2016-02-01 | 2016-05-11 | 太仓市其盛化纤厂 | Winding device for textile machinery |
Also Published As
Publication number | Publication date |
---|---|
EP2019060B1 (en) | 2013-04-24 |
EP2019060A3 (en) | 2009-11-04 |
DE102007034179A1 (en) | 2009-01-29 |
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