EP2729396B1 - A winder and a turret - Google Patents

A winder and a turret Download PDF

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Publication number
EP2729396B1
EP2729396B1 EP12735435.5A EP12735435A EP2729396B1 EP 2729396 B1 EP2729396 B1 EP 2729396B1 EP 12735435 A EP12735435 A EP 12735435A EP 2729396 B1 EP2729396 B1 EP 2729396B1
Authority
EP
European Patent Office
Prior art keywords
winding
revolving unit
unit
winding shaft
bearing
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.)
Active
Application number
EP12735435.5A
Other languages
German (de)
French (fr)
Other versions
EP2729396A2 (en
Inventor
Richard David PRYLE
Carlos Martinez
Rolf Kammann
Frank Hoffmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SWISS WINDING INVENTING AG
Windmoeller and Hoelscher KG
Original Assignee
SWISS WINDING INVENTING AG
Windmoeller and Hoelscher KG
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Filing date
Publication date
Application filed by SWISS WINDING INVENTING AG, Windmoeller and Hoelscher KG filed Critical SWISS WINDING INVENTING AG
Publication of EP2729396A2 publication Critical patent/EP2729396A2/en
Application granted granted Critical
Publication of EP2729396B1 publication Critical patent/EP2729396B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/2207—Changing the web roll in winding mechanisms or in connection with winding operations the web roll being driven by a winding mechanism of the centre or core drive type
    • B65H19/2223—Turret-type with more than two roll supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/30—Lifting, transporting, or removing the web roll; Inserting core
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/413—Supporting web roll
    • B65H2301/4135—Movable supporting means
    • B65H2301/41354—Movable supporting means moving along a path enclosing a circular area, e.g. turret
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4146—Winding involving particular drive arrangement
    • B65H2301/41462—Winding involving particular drive arrangement nip drive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4148—Winding slitting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/417—Handling or changing web rolls
    • B65H2301/4171—Handling web roll
    • B65H2301/4172—Handling web roll by circumferential portion, e.g. rolling on circumference
    • B65H2301/41726—Handling web roll by circumferential portion, e.g. rolling on circumference by conveyor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/417—Handling or changing web rolls
    • B65H2301/418—Changing web roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00—Parts for holding the handled material
    • B65H2405/50—Gripping means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2408/00—Specific machines
    • B65H2408/20—Specific machines for handling web(s)
    • B65H2408/23—Winding machines
    • B65H2408/231—Turret winders
    • B65H2408/2315—Turret winders specified by number of arms
    • B65H2408/23155—Turret winders specified by number of arms with three arms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/175—Plastic
    • B65H2701/1752—Polymer film

Definitions

  • the present invention relates to a winder according to the preamble of claim 1 or claim 20, a turret unit for a winder according to the preamble of claim 15 and a method for operating a winder according to the preamble of claim 19.
  • Such winder are mainly used in production lines in which an extruder produces an endless plastic film which is to be wound continuously and without interruption on hubs.
  • the recipe and the production speed and the width of the plastic film to be wound have a large variety of parameters.
  • the recipe entails that the film must be wound under well-defined conditions: for example, the tension in the wound film and the contact pressure during winding must be kept within a minimum tolerance range and the winding progress accordingly, otherwise the finished roll unusable.
  • Feed speeds of 500 to 600 m / min are the norm, 800 m / min attainable and even higher feed speeds are to be expected.
  • Winding diameters up to 400 mm are produced today, larger diameters are to be expected. The time for the winding of large diameters is one minute, of course, a shortening of this time is desirable.
  • the time available for the rotation of the turret assembly which ultimately is unproductive, is extremely short and should not exceed one second.
  • the weight of the finished rolls is considerable, for example, a multiple use with four coils with a diameter of 400 mm and a width of 500 mm about 224 kg.
  • the turret unit becomes a large, solid construction, which requires a very high drive power with correspondingly massive drive mechanisms for the rotation to be carried out in seconds.
  • each winding shaft is associated with a wegklappbarer tailstock, which engages via a retractable mandrel axially into the end face of the winding shaft and this so removably stored.
  • the winder has the characterizing features of claim 1 and of claim 20, the turret unit the characterizing features of claim 15, and the method the characterizing features of claim 19.
  • Fig. 1 shows a winder 1 according to the invention in a side view, illustrating the path of the endless web of a film 2 through the winder 1 therethrough.
  • a cutting unit 4 the endless film 2 is separated lengthwise, so that two separate film webs 5 and 5 'are formed, each of the film webs is carried out 5,5' in an associated turret unit 6,6 '.
  • the turret assemblies 6,6 ' are basically the same structure and each have three winding shafts in the illustrated embodiment, namely a first winding shaft 10,10', a second winding shaft 11,11 'and a third winding shaft 12,12'.
  • Behind the cutting unit 4 is a winding unit 3 for broke.
  • the winding shafts 10, 10 'to 12, 12' are located in different work stations, namely a charging station 13, 13 ', a winding station 14, 14' and a removal station 15, 15 '.
  • the charging station 13,13 ' where it is loaded with fresh hubs 17, passes through a further rotation step of the turret units 6,6' in the winding station 14,14 ', where the hubs 17 with the film. 2 be wound to the finished winding 18 and from there to the removal station 15,15 ', where the winding 18 are removed from the turret unit 6,6'.
  • a contact roller 19, 19 'known to a person skilled in the art provides in the winding station 14, 14' for the contact pressure corresponding to the respective formulation of the film.
  • a winder for an endless web of a plastic film with a turret unit which is rotatable about its axis and has at least two parallel to its axis winding shafts, loaded on the hubs, then wound with the film into a winding finally as finished winding can be removed from this again, wherein the winding shafts are fixedly mounted in the revolver at one end in its position parallel to the axis thereof, and wherein the storage on the other side for each winding shaft individually is formed releasable, such that the respective winding shaft can be loaded and unloaded with storage dissolved from this end.
  • the releasable mounting is preferably formed for each winding shaft by a gripper assembly associated therewith, which is fixed to the turret unit and rotates with this, in its closed position the winding shaft operatively stores and can be moved away in the open position of this.
  • the charging station 13,13 '(or the loading position) is thus in 14 o'clock position, the winding station 14,14' (or the winding position) in 10 o'clock position and the removal station 15,15 '(or the removal position) in 6 o'clock position.
  • the winding 18 in 10 o'clock - or 14 o'clock - position taken with the result that the conveyor belt driven from a laterally parked position first under the winding must be, which costs additional time.
  • the lateral parking position is unavoidable, otherwise the conveyor belt would be in the way of rotation of the turret unit.
  • the conveyor belt 20 is already in position, since it does not stand in the way in the 6 o'clock position of the rotation of the turret unit. The loss of time is therefore limited to the short time required for the conveyor to start up.
  • a winder for an endless web of a plastic film with a revolving unit which is rotatable about its axis and has at least two winding shafts running parallel to its axis, is then loaded onto the winding cores, then finally wound with the film into a winding finished winding of this can be removed again, wherein on both sides of the turret bearing assemblies are arranged, in which the winding shafts are mounted at their respective ends in this, and wherein the storage for one end of the winding shafts is detachably formed, such that the respective Winding shaft can be loaded and unloaded from this end with dissolved storage, wherein the winder is designed such that each brought a winding shaft in the range of 6 o'clock position and the winding can be removed in this area.
  • FIG. 2 shows a view of the winder 1 of FIG. 1 ,
  • the film 2 is once separated into the film webs 5,5 ', which in turn are each separated into four longitudinal foil webs 5 * and 5 *'.
  • Each turret unit 6,6 'thus works with four times, ie, that four wraps 18 are wound at the same time.
  • At the foot end 24,24 'of the revolver units 6,6' is a drive unit 25,25 'for one hand, the gradual rotation of the revolver unit itself and on the other hand for in the winding station 14,14' ( FIG. 1 ) necessary rotation of the winding shafts 10,10 'to 12,12'.
  • the head end 26,26 'of the revolver units 6,6 ' is free to allow the loading of the winding shafts 10,10' with winding cores 17 and the removal of coils 18 from the winding shafts 12,12 '.
  • FIG. 3 schematically shows a view of a preferred embodiment of a turret unit 6 according to the invention (for simplicity, the reference character 6 'as well as all the signs belonging to the turret unit 6' are omitted below).
  • the drive unit 25 (FIG. FIG. 2 ) are arranged with the drive components for the rotation of the winding shafts 10 to 12 and the rotation of the turret unit 6 itself. To relieve the figure, all surrounding elements of the revolver unit 6 (s. FIG. 2 ) and their storage omitted.
  • a support plate 31 On the head side 26 is a support plate 31, fixedly mounted on a central tube 32 which lies in the longitudinal axis 16 of the turret unit 6 and is fixed to the base plate 30, so that the support plate 31 rotates with the base plate 30 with.
  • Recesses 33 to 35 are provided at the location of the winding shafts 10 to 12 and have dimensions that allow a free passage of winding cores 17 to be loaded on the winding shaft assigned to it or finished wraps 18 to be taken from it.
  • Each scissor unit 39 to 41 is provided with two scissor arms 42,43, which attack each other in the closed position via a recess 44,45 on its associated winding shaft and these operable to store.
  • the scissor arms 42,43 are mounted at articulation points 46,47 in the support plate 31 and here preferably via pneumatic cylinder 48,49 pivotally, whereby the scissors units 39 to 41 can be opened and closed.
  • the support plate 31 extends from the axis 16 of the turret unit 6 radially outwardly between adjacent winding shafts 10 to 12, wherein the scissor arms 44,45 of the gripper assembly 36 to 38 pivotally in a lying between the winding shafts 10 to 12 area the support plate 31 are hinged.
  • three winding shafts 10 to 12 and a contour of a three-star star having support plate 31 are provided, wherein on the support plate 31 as three scissors units 39 to 41 formed gripper assemblies 36 to 38 are arranged, the pivotally mounted on the support plate 31 scissor arms 42nd , 43 also on the support plate 31 arranged drive units, preferably pneumatic cylinders 48,49 are opened and closed.
  • FIG. 4a shows the turret unit 6 in a phase in which the bearing assemblies of the winding shafts 10 and 12 are opened (loading winding cores 17 on the winding shaft 10 / removal of coils 18 of the winding shaft 12), while that of the winding shaft 11 is closed, as these in the winding station 14 ( FIG. 1 ) is located.
  • the scissor arms 42,43 are pivoted in the direction of the arrows. It should be noted that the bearing assemblies can in principle be operated independently of one another and also during the rotation of the turret unit 6.
  • FIG. 4b shows the turret unit 6 in a phase in which new hubs 17 loaded and the winding 18 are removed:
  • the bearing assemblies of the winding shafts 10 and 12 are fully open, the scissor arms 42,43 are in the open position, ie pivoted away from the winding shafts and are in the support plate 31 sunk, so that the passage for the winding 18 is limited only by the dimensions of the recesses 33 to 35.
  • FIG. 5 shows a view of the recess 35 of the support plate 31 with the consisting of the scissor unit 41 gripper assembly 38 (of course, the other two recesses 33,34 are formed with the same organs arranged same).
  • the support plate 31 is formed as a double plate, in the intermediate space 50, the scissor arms 42,43 are retractable.
  • the scissor arm 42 is double-walled with an outer wall (110) and an inner wall (111), and wherein another scissor arm (43, 42) is formed between the outer wall (110) and the inner wall (111 ) is arranged.
  • a gap 51 is formed, which receives the scissor arm 43, and is guided thereby.
  • a cam 54 arranged on the scissor arm 43 and running in a groove 53 of the scissor arm 42 improves this guidance and thus increases the safety and the coordinated movement of the scissor arms 42, 43.
  • FIG. 6a shows a further preferred embodiment of a turret unit 120 according to the invention.
  • Two winding shafts 10 and 12 are visible, while the third winding shaft 11 (FIG. FIG. 5 ) is covered.
  • gripper assemblies 121 to 123 with each double-walled scissor arms 124, consisting of an outer wall 125 (ie, on the outside of the turret unit 120) and an inner wall 126 (located inside the turret unit 120). Between the outer wall 125 and the inner wall 126 is an associated scissor arm 127.
  • each gripper assembly 121 to 123 are in the closed position, comprise the respective winding shaft 10 to 12 and form for this a storage unit 130, which the respective Winding shaft 10 to 12 over a bearing length I stores, as in FIG. 6b is shown in more detail.
  • FIG. 6b shows a detailed view of the gripper assembly 123, which is shown shortly before its closed position and so the view of the end of the winding shaft 12 is still free.
  • the winding shaft 12 has four bearings 130 to 133, ie a first bearing 130, a second bearing 131, a third bearing 132 and a fourth bearing 133, which are preferably designed as roller bearings, but by the skilled person with regard to the specific winder in any way can be trained.
  • the first bearing 130 interacts with the inner wall 125 of the scissor arm 124 (FIG. FIG. 6a ), the second bearing 131 and the third bearing 132 with the scissor arm 127 and the fourth bearing 133 with the outer wall 125 of the scissor arm 124 together.
  • first bearing 130 and the second bearing 131 together form a first bearing area 135 and the third bearing 132 with the fourth bearing 133 together form a second bearing area 136 for the winding shaft 12, whose spacing corresponds to the bearing length l.
  • a bearing with a bearing length l causes improved storage by fixed clamping of the winding shaft 12, since the clamping extends over a longitudinal portion of the winding shaft 12, which has an advantageous effect on the bending line under the stress in the winding station, for example in view of the Resonanzfreqzenz (vibrations during winding) or in terms of equal pressure across the width of all the rolls through the contact roller 19,19 '( FIG. 1 ).
  • the parameters resonance frequency and uniform pressure are crucial for proper winding.
  • the person skilled in the art can determine the bearing length l according to the two parameters mentioned above and also according to other relevant parameters and, for example, in the arrangement shown in the figures, thus also the width of the scissor arm 127 which determines the distance of the outer wall 125 and the inner wall 124 (FIG. FIG. 6a ) certainly.
  • the scissor arm arranged between the outer wall 125 and the inner wall 124 is likewise double-walled, in order to produce an excessively massive version of this scissor arm 124 (FIG. FIG. 6a ) to avoid.
  • the scissor arms can be formed with any width, so that for each specific application, the stock length l can be optimally realized.
  • the scissor arms in the storage area are designed by the skilled person as necessary, i. E. such that they store the winding shaft over the bearing length in one or more points and thus clamp.
  • FIGS. 1 to 5 illustrated preferred embodiment of the present invention has three winding shafts, with the advantage that loaded on a respective winding shaft only hubs or winding are removed.
  • according to the invention are also turret assemblies with only two winding shafts, which then removed during the preparation of the winding on one winding shaft on the other winding shaft on the one hand, the winding and on the other hand, the new hubs must be loaded.
  • configurations with more than three winding shafts are also conceivable.
  • the winding shafts can likewise be detachably arranged at the foot end, for example by a carrier plate equipped with gripper arrangements, as already used at the head end of the revolving unit.
  • winding shafts can be removed in the radial direction from the turret unit and reinserted into it, which allows to load winding shafts outside the turret unit with winding cores or to remove the reels outside the turret unit from the winding shaft.
  • FIG. 6 shows a view of the head end of another embodiment of the inventive turret unit 55. It can be seen, the winding shafts 10 and 12 and the center tube 32, wherein the winding shaft 11 is covered by the winding shaft 10.
  • a carrier plate 31 (FIG. FIGS. 2 to 4 ) is a double flange 52 is provided, on which pivotable about 56 pivotable scissor arms 57,58 are substantially radially extending away from the region of the axis 16 of the turret unit and in the closed position on recesses 59,60 the respective winding shaft 10 to 12th store these but release in open position.
  • a here three-armed guide plate 60 has in each of its arms 61 in this radially extending guide rail 62 for an actuator 63, the scissor arms 57,58 pivots about actuating arms 64,65.
  • the displacement of the actuating element 63 via a provided on the back of the arms 61 of the guide plate 60 conventional drive such as a threaded spindle, as is familiar to those skilled in the art.
  • FIG. 7 shows a view of the head end yet another embodiment of the inventive turret unit 70 with the winding shafts 10 to 12, wherein the central tube 32 an anchor plate 71 is fixed, with support arms 72,73, which form a passage for a winding 18 to be removed therebetween and support pneumatic cylinder 74,75, which each act on a three-armed bearing star 76,77.
  • the cylinder 74,75 rotate the bearing stars 76,77 with their arms 78,79 towards each other or away from each other, so that a lying between the arms winding shaft 10 to 12 stored or released in the recesses 80,81 becomes.
  • Fig. 8a to 8c show three views from different directions on the head of an additional embodiment of the invention Revolvertechnik 90th
  • FIG. 8a shows a fixedly arranged on the end face of the central tube 32, with this with rotating support plate 91, with radially projecting, short extensions 92 which extend into the space between the winding shafts 10 to 12 (ie leave room for the removal of a coil 18) and serve in the outer area as a bearing for a rotation axis 93, via which in turn a respective locking arm 94 is rotatably mounted about its center.
  • the winding shafts 10 to 12 form the corners of an equilateral triangle with the axes of rotation 93 in the middle of the sides of the triangle.
  • the length of the locking arms 94 is chosen such that these end with their bearing grooves 95, the winding shafts include scissor-like and can lock in position, so store them operationally in the closed position.
  • the storage is achieved by the locking arms are rotated according to the arrow in the clockwise direction, so far until the corresponding in its contour the central tube 32 recess 96 abuts against this (and the passage for winding 18 is open), as indicated by the dotted Arrow is indicated.
  • FIG. 8b shows the drive of the locking arms via gears 100, which in turn are driven by a central gear 101.
  • This arrangement has the advantage that the gear 101 are driven by a shaft extending in the central tube 32 and thus the corresponding motor in the Drive unit 25 ( FIG. 2 ), which supports the compact design of the illustrated turret unit 90.
  • FIG. 8c shows the locking arms 94 in the open position and thus freely cantilevered winding shafts 10,11 with the open passage for winding 18 and hubs. 17
  • FIGS. 6 to 8 Further embodiments with bearing arrangements according to the FIGS. 6 to 8 may be formed as above for the further embodiments of a turret unit according to the FIGS. 2 to 5 is shown.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)

Description

Die vorliegende Erfindung betrifft einen Wickler gemäss dem Oberbegriff des Anspruchs 1 bzw. des Anspruchs 20, eine Revolvereinheit für einen Wickler gemäss dem Oberbegriff des Anspruchs 15 und ein Verfahren zum Betrieb eines Wicklers gemäss dem Oberbegriff des Anspruchs 19. Solche Wickler werden vorwiegend in Produktionslinien eingesetzt, bei welchem ein Extruder eine endlose Kunststoff - Folie erzeugt, die laufend und ohne Unterbrechung auf Wickelkerne zu wickeln ist.The present invention relates to a winder according to the preamble of claim 1 or claim 20, a turret unit for a winder according to the preamble of claim 15 and a method for operating a winder according to the preamble of claim 19. Such winder are mainly used in production lines in which an extruder produces an endless plastic film which is to be wound continuously and without interruption on hubs.

Sowohl von der Rezeptur als auch von der Produktionsgeschwindigkeit und der Breite der zu wickelnden Kunststoff - Folie besteht eine grosse Vielfalt der Parameter. Insbesondere die Rezeptur bringt es mit sich, dass die Folie unter genau definierten Bedingungen gewickelt werde muss: beispielsweise die Spannung in der aufgewickelten Folie sowie der Anpressdruck während dem Wickeln müssen in einem kleinsten Toleranzbereich genau und dem Wickelfortschritt entsprechend eingehalten werden, andernfalls wird der fertige Wickel unbrauchbar.Both the recipe and the production speed and the width of the plastic film to be wound have a large variety of parameters. In particular, the recipe entails that the film must be wound under well-defined conditions: for example, the tension in the wound film and the contact pressure during winding must be kept within a minimum tolerance range and the winding progress accordingly, otherwise the finished roll unusable.

Für die häufige Massenproduktion, einschliesslich einer Produktion mit Mehrfachnutzen, wo mehrere Wickel gruppenweise nebeneinander auf einer gemeinsamen Wickelwelle gewickelt werden, ist ein fliegender Wechsel vom fertig hergestellten Wickel zum neuen Wickelkern unumgänglich. Oft wird dabei eine drehbare Revolvereinheit mit mehreren Wickelwellen eingesetzt, welche durch ihre Drehung eine der Wickelwellen von ihrer Wickelposition weg hin zu einer Entnahmeposition bringt, wobei dann gleichzeitig eine andere Wickelwelle, die bereits mit einem oder einer Gruppe (Mehrfachnutzen) von leeren Wickelkernen bestückt ist, in die Wickelposition gelangt. Während der Drehung oder unmittelbar nach dem diese vollendet ist, wird die endlose Folienbahn geschnitten, derart, dass sich das neue, voreilende Ende der Folienbahn um die leeren, soeben in Wickelposition gebrachten Wickelkerne wickelt, womit verzugslos die nächste Gruppe von Wickeln gewickelt werden kann.For the frequent mass production, including a production with multiple benefits, where several coils are wound in groups side by side on a common winding shaft, a flying change from ready-made winding to the new hub is inevitable. Often a rotatable turret unit with several winding shafts is used, which brings one of the winding shafts from its winding position towards a removal position by its rotation, in which case at the same time another winding shaft, which is already equipped with one or a group (multiple benefits) of empty hubs , gets into the winding position. During rotation, or immediately after it has been completed, the endless film web is cut, such that the new, leading end of the film web wraps around the empty, just in winding position brought cores, with which the next group of windings can be wound without delay.

Mit anderen Worten ist es so, dass auf einer der Wickelwellen, die sich in der Wickelstation befindet, ein Wickel hergestellt, d.h. Folie aufgewickelt wird und auf einer anderen Welle, in der Lade bzw. Entnahmestation, leere Wickelkerne geladen bzw. die fertigen Wickel entnommen werden. Eine Drehung der Revolvereinheit bringt dann die Wickelwellen in die jeweilige nächste Station. Die für das Laden bzw. Entnehmen zur Verfügung stehende Zeit entspricht im Wesentlichen der für die Erstellung eines bzw. einer Gruppe von Wickeln benötigten Zeit, welche wiederum durch die Vorschubgeschwindigkeit der Folie und der gewünschten Länge der gewickelten Folie vorgegeben ist.In other words, it is such that on one of the winding shafts, which is located in the winding station, a winding produced, ie film is wound and loaded on another shaft, in the loading or unloading station, empty hubs or removed the finished winding become. A rotation of the revolver unit then brings the winding shafts in the respective next station. The time available for loading or unloading is essentially the same as for the creation one or a group of coils required time, which in turn is determined by the feed rate of the film and the desired length of the wound film.

Sowohl die Vorschubgeschwindigkeit als auch der Durchmesser der Wickel sind in der letzten Zeit grösser geworden. Vorschubgeschwindigkeiten von 500 bis 600 m/Min sind die Norm, 800 m/Min erreichbar und noch höhere Vorschubgeschwindigkeiten sind zu erwarten. Wickeldurchmesser bis 400 mm werden heute hergestellt, grössere Durchmesser sind zu erwarten. Die Zeit für die Wicklung auch von grossen Durchmessern liegt bei einer Minute, wobei natürlich eine Verkürzung dieser Zeit wünschenswert ist.Both the feed rate and the diameter of the rolls have become larger in recent times. Feed speeds of 500 to 600 m / min are the norm, 800 m / min attainable and even higher feed speeds are to be expected. Winding diameters up to 400 mm are produced today, larger diameters are to be expected. The time for the winding of large diameters is one minute, of course, a shortening of this time is desirable.

Dies bedeutet zweierlei:This means two things:

Erstens wird die für die Drehung der Revolvereinheit zur Verfügung stehende Zeit, die letztlich unproduktiv ist, äusserst kurz und sollte nicht mehr als eine Sekunde betragen. Das Gewicht der fertigen Rollen ist beträchtlich, bei beispielsweise einem Mehrfachnutzen mit vier Wickeln mit einem Durchmesser von 400 mm und einer Breite von 500 mm ca. 224 kg. Der Durchmesser der Revolvereinheit, in der solche Wickel Platz finden müssen, wird mit diesen immer grösser und übersteigt 1 m. Die Revolvereinheit wird zur grossen, massiven Konstruktion, bei der eine sehr hohe Antriebsleistung mit entsprechend massiven Antriebsorganen für die im Sekundenbereich auszuführende Drehung notwendig wird. Mit ein Grund dafür ist, dass für die geforderte Wickelqualität eine genaue und stabile Lagerung der ihrerseits für das Wickeln des Wickels in der Revolvereinheit rotierbar gelagerten Wickelwellen zwingend ist, was wiederum einen stabilen, deshalb massiven und aufwendigen Rahmen der Revolvereinheit voraussetzt.First, the time available for the rotation of the turret assembly, which ultimately is unproductive, is extremely short and should not exceed one second. The weight of the finished rolls is considerable, for example, a multiple use with four coils with a diameter of 400 mm and a width of 500 mm about 224 kg. The diameter of the revolver unit, in which such reels must find space, with these ever larger and exceeds 1 m. The turret unit becomes a large, solid construction, which requires a very high drive power with correspondingly massive drive mechanisms for the rotation to be carried out in seconds. One reason for this is that for the required winding quality an accurate and stable storage of the winding shafts rotatably mounted in turn for winding the coil in the turret unit is mandatory, which in turn requires a stable, therefore massive and complex frame of the turret unit.

Zweitens ist es so, dass eine zu beladende bzw. entladende Wickelwelle einseitig offen sein muss, damit auf dieser Seite Wickelkerne aufgeschoben bzw. fertige Wickel abgezogen werden können. Die Lagerung der Wickelwellen muss also einseitig lösbar sein, wie dies beispielsweise in WO 2009/050556 mit einer auch für grosse Wickel geeigneten Lösung gezeigt ist. Bei dieser Lösung werden aber zwangsläufig alle Wickelwellen, d.h. auch die sich in der Wickelstation befindenden, auf einer Seite freigegeben, was zu einer erheblichen Beanspruchung der Lagerung auf der anderen Seite führt, der mit dem entsprechenden konstruktiven Aufwand zu begegnen ist, welcher wiederum die Revolvereinheit noch massiver macht. Weitere Wickler mit einer Revolvereinheit sind vom US 2005/01272131 oder vom DE 196 09 802 bekannt.Secondly, it is the case that a winding shaft to be loaded or unloaded must be open on one side so that winding cores can be pushed onto this side or finished windings can be pulled off. The storage of the winding shafts must therefore be solvable on one side, as for example in WO 2009/050556 is shown with a suitable solution for large winding. In this solution, however, inevitably all winding shafts, that is, which are located in the winding station, released on one side, resulting in a significant stress on the storage on the other side leads, which is to be countered with the appropriate design effort, which in turn makes the revolver unit even more massive. Further winder with a revolver unit are from US 2005/01272131 or from DE 196 09 802 known.

Für Wickler mit kleinen Wickeldurchmessern ist eine Lösung bekannt geworden, bei der jeder Wickelwelle ein wegklappbarer Reitstock zugeordnet ist, der über einen rückziehbaren Dorn axial in die Stirnseite der Wickelwelle eingreift und diese so lösbar lagert.For winder with small winding diameters, a solution has become known in which each winding shaft is associated with a wegklappbarer tailstock, which engages via a retractable mandrel axially into the end face of the winding shaft and this so removably stored.

Würde solch Lösung massstäblich vergrössert, resultierte eine Revolvereinheit mit aufwendiger und schwerer Konstruktion, was unter anderem im Hinblick auf die kurze zur Verfügung stehende Zeit für deren Drehung unerwünscht ist. Wird beispielsweise der rückziehbare Dorn konisch ausgebildet, kann er im Betrieb spielfrei in die gegengleich ausgebildete Stirnseite der Wickelwelle eingreifen. Fluchten jedoch der Dorn und die Wickelwelle nicht absolut exakt, was im Betrieb der Normalfall ist, entstehen auf Grund der Konizität hohe Seitenkräfte, die auf den Reitstock wirken, was wenigstens bei grösseren Wickeldurchmessern zur genannten massiven Konstruktion führt. Wird zur Vermeidung der Seitenkräfte ein zylindrischer Dorn verwendet, führt schon geringstes Spiel zu Verschleiss und unrundem Lauf der Wickelwelle, was wiederum eine einwandfreie Wicklung wenn nicht verunmöglicht, doch erschwert.If such a solution would be scaled up, a turret unit with elaborate and heavy construction resulted, which is undesirable in view of, among other things, the short time available for its rotation. For example, if the retractable mandrel is conical, it can engage in the backlash of the winding shaft without play during operation. However, the mandrel and the winding shaft are not exactly exactly aligned, which is the normal case in operation, due to the conicity high side forces that act on the tailstock, which leads to the aforementioned massive construction, at least for larger winding diameters. If a cylindrical mandrel is used to avoid the lateral forces, even the slightest play leads to wear and out-of-round running of the winding shaft, which in turn makes perfect winding difficult if not impossible.

Entsprechend ist es die Aufgabe der vorliegenden Erfindung, ein verbersserter Wickler, eine verbesserte Revolveinheit und ein verbessertes Verfahren bereit zu stellen.Accordingly, it is the object of the present invention to provide a transposed winder, an improved turret unit and an improved method.

Zur Lösung dieser Aufgabe besitzt den Wickler die kennzeichnenden Merkmale vom Anspruch 1 bzw. vom Anspruch 20, die Revolvereinheit die kennzeichnenden Merkmale vom Anspruch 15, und das Verfahren die kennzeichnenden Merkmale vom Anspruch 19. Dadurch, dass eine Greifferanordnung mit einer zweiarmigen Schereneinheit vorgesehen ist, lässt sich auch für grosse Wickeldurchmesser eine kompakte Revolvereinheit mit entsprechend geringer Trägheit bei der Drehung realisieren, was bei einem vergleichsweise einfachen Antrieb hohe Drehbeschleunigung erlaubt.To achieve this object, the winder has the characterizing features of claim 1 and of claim 20, the turret unit the characterizing features of claim 15, and the method the characterizing features of claim 19. By providing a gripper assembly with a two-armed scissor unit, can be realized for large winding diameter a compact turret with correspondingly low inertia during rotation, which allows high spin with a relatively simple drive.

Die Erfindung wird nachstehend anhand der Figuren näher beschrieben:The invention will be described in more detail below with reference to the figures:

Es zeigt:

  • Fig. 1 eine Ansicht von der Seite eines erfindungsgemässen Wicklers mit Achtfach-Nutzen
  • Fig. 2 eine dreidimensionale Ansicht des Wicklers von Fig. 1 von vorne
  • Fig. 3 eine Ansicht einer bevorzugten Ausführungsform der erfindungsgemässen Revolvereinheit
  • Fig. 4a eine Ansicht auf das Kopfende der Revolvereinheit von Fig. 3, wobei die Lagerung zweier Wickelwellen gelöst wird
  • Fig. 4b eine Ansicht auf das Kopfende der Revolvereinheit von Fig. 3, wobei die Lagerung zweier Wickelwellen gelöst ist, während die dritte Wickelwelle gelagert ist
  • Fig. 5 eine Ansicht der Greiferanordnung der Revolvereinheit von Figur 3,
  • Fig. 6a eine Ansicht auf eine weitere bevorzugte Ausführungsform einer erfindungsgemässen Revolevereinheit bei welcher die Wickelwellen über eine Lagerlänge gelagert sind,
  • Fig. 6b eine vergrösserte Ansicht auf eine Greifereinheit der Ausführungsform von Fig. 6a,
  • Fig. 7 eine Ansicht auf das Kopfende einer weiteren Ausführungsform der erfindungsgemässen Revolvereinheit,
  • Fig. 8 eine Ansicht auf das Kopfende noch einer weiteren Ausführungsform der erfindungsgemässen Revolvereinheit, und
  • Fig. 9a bis 9c Ansichten auf das Kopfende einer zusätzlichen Ausführungsform der erfindungsgemässen Revolvereinheit.
It shows:
  • Fig. 1 a view from the side of an inventive eight-times-use winder
  • Fig. 2 a three-dimensional view of the winder of Fig. 1 from the front
  • Fig. 3 a view of a preferred embodiment of the inventive turret unit
  • Fig. 4a a view of the head of the revolver unit of Fig. 3 , wherein the storage of two winding shafts is released
  • Fig. 4b a view of the head of the revolver unit of Fig. 3 wherein the bearing of two winding shafts is released while the third winding shaft is supported
  • Fig. 5 a view of the gripper assembly of the turret unit of FIG. 3 .
  • Fig. 6a a view of a further preferred embodiment of a turret unit according to the invention in which the winding shafts are mounted over a bearing length,
  • Fig. 6b an enlarged view of a gripper unit of the embodiment of Fig. 6a .
  • Fig. 7 a view of the head end of another embodiment of the inventive turret unit,
  • Fig. 8 a view of the head of yet another embodiment of the invention Revolvereinheit, and
  • Fig. 9a to 9c Views on the head of an additional embodiment of the invention Revolvereinheit.

Fig. 1 zeigt einen erfindungsgemässen Wickler 1 in einer Seitenansicht, die den Pfad der endlosen Bahn einer Folie 2 durch den Wickler 1 hindurch darstellt. Eine Schneideinheit 4, trennt die endlose Folie 2 der Länge nach auf, so dass zwei getrennte Folienbahnen 5 und 5' entstehen, wobei jede der Folienbahnen 5,5' in eine zugeordnete Revolvereinheit 6,6' geführt wird. Die Revolvereinheiten 6,6' sind grundsätzlich gleich aufgebaut und besitzen in der dargestellten Ausführungsform jeweils drei Wickelwellen, nämlich eine erste Wickelwelle 10,10', eine zweite Wickelwelle 11,11' und eine dritte Wickelwelle 12,12'. Hinter der Schneideinheit 4 befindet sich eine Wickeleinheit 3 für Ausschussfolie. Fig. 1 shows a winder 1 according to the invention in a side view, illustrating the path of the endless web of a film 2 through the winder 1 therethrough. A cutting unit 4, the endless film 2 is separated lengthwise, so that two separate film webs 5 and 5 'are formed, each of the film webs is carried out 5,5' in an associated turret unit 6,6 '. The turret assemblies 6,6 'are basically the same structure and each have three winding shafts in the illustrated embodiment, namely a first winding shaft 10,10', a second winding shaft 11,11 'and a third winding shaft 12,12'. Behind the cutting unit 4 is a winding unit 3 for broke.

Die Wickelwellen 10,10' bis 12,12' befinden sich in verschiedenen Arbeitsstationen, nämlich einer Ladestation 13,13', einer Wickelstation 14,14' und einer Entnahmestation 15,15'.The winding shafts 10, 10 'to 12, 12' are located in different work stations, namely a charging station 13, 13 ', a winding station 14, 14' and a removal station 15, 15 '.

Die Revolvereinheiten 6,6' sind durch einen zur Entlastung der Figur weggelassenen Antrieb entsprechend der eingezeichneten Pfeile im Gegenuhrzeigersinn um ihre Längsachsen 16,16' schrittweise verdrehbar ausgebildet, derart, dass jede der Wickelwellen 10,10' bis 12,12' bei einem weiteren Drehschritt von ihrer vorherigen in ihre nächste Arbeitsstation gebracht wird.The Revolvereinheiten 6,6 'are formed by a omitted to relieve the figure drive according to the arrows in the counterclockwise direction about their longitudinal axes 16,16' gradually rotatable, such that each of the winding shafts 10,10 'to 12,12' in another Rotation step is brought from their previous workstation to their next.

Jede der Wickelwellen passiert so im Zyklus die Ladestation 13,13', wo sie mit frischen Wickelkernen 17 beladen wird, gelangt durch einen weiteren Drehschritt der Revolvereinheiten 6,6' in die Wickelstation 14,14', wo die Wickelkerne 17 mit der Folie 2 zum fertigen Wickel 18 bewickelt werden und von dort in die Entnahmestation 15,15', wo die Wickel 18 aus der Revolvereinheit 6,6' entnommen werden.Each of the winding shafts so happens in the cycle, the charging station 13,13 ', where it is loaded with fresh hubs 17, passes through a further rotation step of the turret units 6,6' in the winding station 14,14 ', where the hubs 17 with the film. 2 be wound to the finished winding 18 and from there to the removal station 15,15 ', where the winding 18 are removed from the turret unit 6,6'.

Eine dem Fachmann an sich bekannte Kontaktwalze 19,19' sorgt in der Wickelstation 14,14' für den der jeweiligen Rezeptur der Folie entsprechenden Anpressdruck.A contact roller 19, 19 'known to a person skilled in the art provides in the winding station 14, 14' for the contact pressure corresponding to the respective formulation of the film.

Zusammenfassend ist damit erfindungsgemäss ein Wickler für eine endlose Bahn einer Kunststofffolie, mit einer Revolvereinheit, die um ihre Achse drehbar ausgebildet ist und mindestens zwei zu ihrer Achse parallel verlaufende Wickelwellen aufweist, auf die Wickelkerne geladen, dann mit der Folie zu einem Wickel bewickelt schliesslich als fertige Wickel von dieser wieder entnommen werden können, wobei die Wickelwellen in der Revolvereinheit an ihren einen Enden in ihrer zu deren Achse parallelen Lage fest gelagert sind, und wobei die Lagerung auf der anderen Seite für jede Wickelwelle individuell lösbar ausgebildet ist, derart, dass die jeweilige Wickelwelle bei gelöster Lagerung von diesem Ende her beladen und entladen werden kann.In summary, according to the invention, a winder for an endless web of a plastic film, with a turret unit which is rotatable about its axis and has at least two parallel to its axis winding shafts, loaded on the hubs, then wound with the film into a winding finally as finished winding can be removed from this again, wherein the winding shafts are fixedly mounted in the revolver at one end in its position parallel to the axis thereof, and wherein the storage on the other side for each winding shaft individually is formed releasable, such that the respective winding shaft can be loaded and unloaded with storage dissolved from this end.

Dabei ist bevorzugt die lösbare Lagerung für jede Wickelwelle durch eine ihr zugeordnete Greiferanordnung gebildet, die an der Revolvereinheit fest angeordnet ist und mit dieser mit rotiert, in ihrer Schliessstellung die Wickelwelle betriebsfähig lagert und in Offenstellung von dieser weggefahren werden kann.In this case, the releasable mounting is preferably formed for each winding shaft by a gripper assembly associated therewith, which is fixed to the turret unit and rotates with this, in its closed position the winding shaft operatively stores and can be moved away in the open position of this.

Über unten gelegene Transportmittel, die hier als unten gelegenes, angetriebenes Förderband 20,20' ausgebildet ist, werden die Wickel 18 aus der Revolvereinheit 6,6' weggeführt. Die Ladestation 13,13' (bzw. die Ladeposition) liegt somit in 14 Uhr - Position, die Wickelstation 14,14' (bzw. die Wickelposition) in 10 Uhr - Position und die Entnahmestation 15,15' (bzw. die Entnahmeposition) in 6 Uhr - Position.Overlying transport means, which is designed here as below, driven conveyor belt 20,20 ', the winding 18 are guided away from the turret unit 6,6'. The charging station 13,13 '(or the loading position) is thus in 14 o'clock position, the winding station 14,14' (or the winding position) in 10 o'clock position and the removal station 15,15 '(or the removal position) in 6 o'clock position.

In der Ladestation 13,13' wird die sich dort befindende Wickelwelle 10,10' bis 12,12' - in der Figur ist es die Wickelwelle 10,10' - mit Wickelkernen 17 beladen. Die Wickelwelle 10 ist bereits beladen, die Wickelwelle 10' noch nicht.In the charging station 13,13 'which there is winding shaft 10,10' to 12,12 '- in the figure it is the winding shaft 10,10' - loaded with hubs 17. The winding shaft 10 is already loaded, the winding shaft 10 'not yet.

Dies geschieht, während in der Wickelstation 14,14' die Wickelwelle 11,11' mit Folie 2 bewickelt wird. Der Wickel 18 der Wickelwelle 11 ist schon fortgeschritten, der Wickel 18 der Wickelwelle 11' trägt erst die ersten Lagen der Folie 2.This happens while in the winding station 14, 14 'the winding shaft 11, 11' is wound with film 2. The winding 18 of the winding shaft 11 is already advanced, the winding 18 of the winding shaft 11 'carries only the first layers of the film. 2

Sobald sich die Wickel 18 durch entsprechende Drehung der Revolvereinheit 6,6' in 6 Uhr Position befinden, wird die Förderfläche 21,21' des Förderbands 20,20' hochgefahren, bis sie die Wickel 18 trägt und diese in zur Wickelwelle 12,12' paralleler Richtung wegführen kann. Der Zeitverlust zwischen der Positionierung der Wickel 18 in der Entnahmestation 15,15' und dem Beginn des Abtransports durch das Förderband 20,20' ist damit im Gegensatz zu den im Stand der Technik bekannt gewordenen Lösungen minimal:As soon as the rolls 18 are in the 6 o'clock position by corresponding rotation of the turret unit 6, 6 ', the conveying surface 21, 21' of the conveyor belt 20, 20 'is raised until it carries the rolls 18 and carries them into the winding shaft 12, 12'. can lead away parallel direction. The loss of time between the positioning of the winding 18 in the removal station 15,15 'and the beginning of Abtransports by the conveyor belt 20,20' is thus in contrast to the solutions become known in the art minimal:

Im Stand der Technik werden die Wickel 18 in 10 Uhr - bzw. 14 Uhr - Position entnommen, mit der Folge, dass das Förderband von einer seitlich liegenden Parkposition zuerst unter den Wickel gefahren werden muss, was zusätzlich Zeit kostet. Dabei ist die seitliche Parkposition ist unumgänglich, da das Förderband sonst bei der Drehung der Revolvereinheit im Weg stünde. Erfindungsgemäss befindet sich das Förderband 20 bereits in Position, da es in 6 Uhr - Position der Drehung der Revolvereinheit nicht im Weg steht. Der Zeitverlust ist deshalb begrenzt auf die kurze Zeitspanne, die für das Hochfahren des Förderbands benötigt wird.In the prior art, the winding 18 in 10 o'clock - or 14 o'clock - position taken, with the result that the conveyor belt driven from a laterally parked position first under the winding must be, which costs additional time. The lateral parking position is unavoidable, otherwise the conveyor belt would be in the way of rotation of the turret unit. According to the invention, the conveyor belt 20 is already in position, since it does not stand in the way in the 6 o'clock position of the rotation of the turret unit. The loss of time is therefore limited to the short time required for the conveyor to start up.

Erfindungsgemäss ergibt sich dadurch ein Verfahren zum Betrieb des Wicklers, bei welchem die Entnahme der Wickel im Bereich der 6 - Uhr Position erfolgt, wobei bei der Vollendung eines Drehschritts der Revolvereinheit, mit dem zu entnehmende Wickel in den Bereich der 6 - Uhr Position gebracht worden sind, von unten ein Fördermittel an die Wickel herangeführt wird, derart, dass sie mit mindestens einem Teil ihres Gewichts auf diesem ruhen, und dann von diesem Förderer abgeführt werden.According to the invention, this results in a method for operating the winder, in which the removal of the wraps takes place in the region of the 6 o'clock position, wherein at the completion of a turning step the turret unit has been brought into the region of the 6 o'clock position with the winding to be removed are introduced from below a conveyor to the winding, such that they rest with at least a portion of their weight on this, and then discharged from this conveyor.

Erfindungsgemäss ist damit weiter ein Wickler für eine endlose Bahn einer Kunststoffolie, mit einer Revolvereinheit, die um ihre Achse drehbar ausgebildet ist und mindestens zwei zu ihrer Achse parallel verlaufende Wickelwellen aufweist, auf die Wickelkerne geladen, dann mit der Folie zu einem Wickel bewickelt schliesslich als fertige Wickel von dieser wieder entnommen werden können, wobei an beiden Seiten der Revolvereinheit Lageranordnungen angeordnet sind, in denen die Wickelwellen an ihren entsprechenden Enden in dieser gelagert sind, und wobei die Lagerung für ein Ende der Wickelwellen lösbar ausgebildet ist, derart, dass die jeweilige Wickelwelle bei gelöster Lagerung von diesem Ende her beladen und entladen werden kann, wobei der Wickler derart ausgebildet ist, dass jeweils eine Wickelwelle in den Bereich der 6 Uhr - Position gebracht und die Wickel in diesem Bereich entnommen werden können.According to the invention, a winder for an endless web of a plastic film, with a revolving unit which is rotatable about its axis and has at least two winding shafts running parallel to its axis, is then loaded onto the winding cores, then finally wound with the film into a winding finished winding of this can be removed again, wherein on both sides of the turret bearing assemblies are arranged, in which the winding shafts are mounted at their respective ends in this, and wherein the storage for one end of the winding shafts is detachably formed, such that the respective Winding shaft can be loaded and unloaded from this end with dissolved storage, wherein the winder is designed such that each brought a winding shaft in the range of 6 o'clock position and the winding can be removed in this area.

Figur 2 zeigt eine Ansicht des Wicklers 1 von Figur 1. Die Folie 2 ist einmal aufgetrennt in die Folienbahnen 5,5', die wiederum je in vier Folienlängsbahnen 5* bzw. 5*' aufgetrennt sind. Jede Revolvereinheit 6,6' arbeitet also mit Vierfachnutzen, d.h., dass zugleich vier Wickel 18 gewickelt werden. FIG. 2 shows a view of the winder 1 of FIG. 1 , The film 2 is once separated into the film webs 5,5 ', which in turn are each separated into four longitudinal foil webs 5 * and 5 *'. Each turret unit 6,6 'thus works with four times, ie, that four wraps 18 are wound at the same time.

Am Fussende 24,24' der Revolvereinheiten 6,6' befindet sich eine Antriebseinheit 25,25' für einerseits die schrittweise Drehung der Revolvereinheit selbst und andererseits für die in der Wickelstation 14,14' (Figur 1) notwendige Drehung der Wickelwellen 10,10' bis 12,12'. Das Kopfende 26,26' der Revolvereinheiten 6,6' ist frei, um die Beladung der Wickelwellen 10,10' mit Wickelkernen 17 und die Entnahme von Wickeln 18 von den Wickelwellen 12,12' zu ermöglichen.At the foot end 24,24 'of the revolver units 6,6' is a drive unit 25,25 'for one hand, the gradual rotation of the revolver unit itself and on the other hand for in the winding station 14,14' ( FIG. 1 ) necessary rotation of the winding shafts 10,10 'to 12,12'. The head end 26,26 'of the revolver units 6,6 'is free to allow the loading of the winding shafts 10,10' with winding cores 17 and the removal of coils 18 from the winding shafts 12,12 '.

Die Beladung mit Wickelkernen 17 und die Entnahme der Wickel 18 erfolgt in Richtung der Längsachse der jeweiligen Wickelwelle 10,10' bis 12,12'.The loading with hubs 17 and the removal of the winding 18 takes place in the direction of the longitudinal axis of the respective winding shaft 10,10 'to 12,12'.

Weiter dargestellt sind ein Magazin 27 für Wickelkerne 17 mit einer Pufferstange 28, von der aus die bereitgestellte Gruppe von Wickelkernen 17 in Richtung des Pfeils 29,29' auf eine Wickelwelle 10,10' bis 12,12' geschoben werden kann, sobald diese ihre Ladeposition erreicht hat. Die von den Förderbändern 20,20' ausgegebenen Wickel 18 gelangen in Richtung des Pfeils 29",29'" in einen Ausgabebereich 9.Also shown are a magazine 27 for hubs 17 with a buffer rod 28, from which the provided group of hubs 17 in the direction of the arrow 29,29 'on a winding shaft 10,10' to 12,12 'can be pushed as soon as this Loading position has reached. The windings 18 output by the conveyor belts 20, 20 'reach an exit area 9 in the direction of the arrow 29 ", 29'".

Wie oben erwähnt setzt bei dem vorliegenden Layout die Beladung einer Wickelwelle 10,10' bis 12,12' mit Wickelkernen voraus, dass die Wickelwelle am Kopfende 26,26' der Revolvereinheit frei zugänglich, d.h. dort nicht gelagert ist. Ebenso für die Entnahme von Wickeln 18. Dies bedeutet, dass dann die betreffende Wickelwelle 10,10' bis 12,12' nur einseitig im Fussende 24,24' gelagert ist, also von diesem her vorkragt, was wiederum eine aufwendige und massive Lagerung am Fussende 24,24' notwendig macht. Dies ist in der Ladestation 13,13' wenig kritisch, da die Wickelkerne 17 vergleichsweise leicht sind, aber kritisch in der Entnahmestation 15,15' mit den bei grösseren Durchmessern schweren Wickeln 18.As mentioned above, in the present layout, the loading of a winding shaft 10,10 'to 12,12' with winding cores requires that the winding shaft at the head end 26,26 'of the turret unit freely accessible, i. is not stored there. Likewise for the removal of coils 18. This means that then the respective winding shaft 10,10 'to 12,12' only one side in the foot 24,24 'is mounted, so vorkragt from this, which in turn requires a complex and massive storage on Foot end 24,24 'necessary. This is in the charging station 13,13 'little critical, since the hubs 17 are comparatively light, but critical in the removal station 15,15' with the heavier at larger diameters 18th

In der Wickelstation 14,14' muss hingegen die jeweilige Wickelwelle 10,10' bis 12,12' beidseitig gelagert werden, da sonst bedingt durch den Wickelzug und die Andruckwalze 19 die Wickelwelle nicht ruhig laufen könnte und sich zudem ausbiegen würde, was eine einwandfreie Wicklung bei den meisten Rezepturen verunmöglichte.In the winding station 14,14 ', however, the respective winding shaft 10,10' to 12,12 'must be stored on both sides, otherwise due to the winding tension and the pressure roller 19, the winding shaft could not run smoothly and would also bend out, which is a flawless Winding on most recipes made it impossible.

Entsprechend ist es notwendig, die Wickelwellen 10,10' bis 12,12' wenigstens in der Wickelstation 14,14' an beiden Enden zu lagern, in den anderen Stationen aber nicht, also die Lagerung für ein Ende der Wickelwellen 10,10' bis 12,12' lösbar auszubilden, und dabei die Lagerung am stets fest eingespannten Ende entsprechend steif zu gestalten.Accordingly, it is necessary to store the winding shafts 10,10 'to 12,12' at least in the winding station 14,14 'at both ends, but not in the other stations, so the storage for one end of the winding shafts 10,10' to 12,12 'releasably form, and thereby make the storage at the always firmly clamped end according to stiff.

Wird nun die Lagerung am einen Ende der Wickelwelle 10,10' bis 12,12' in der Entnahmestation 15,15' erfindungsgemäss erst gelöst, wenn das Förderband 20 nach dem Hochfahren die Wickel 18 trägt, reduzieren sich die Anforderungen an die Lagerung im anderen, fest am Fussende 24,24' der Revolvereinheit 6,6' eingespannten Ende der Wickelwelle zwar nicht vollständig, aber doch beträchtlich. Die Entnahme der Wickel 18 in der 6 Uhr - Position führt entsprechend nicht nur zur Zeitersparnis im Entnahmebereich, sondern auch zugleich zu reduzierten Anforderungen für die Lagerung der Wickelwellen.Now, if the storage at one end of the winding shaft 10,10 'to 12,12' in the removal station 15,15 'inventively solved only when the conveyor belt 20 carries the winding 18 after startup, reduce the requirements for storage in the other , fixed at the foot end 24,24 'of the turret unit 6,6' clamped end of the winding shaft, although not completely, but considerably. The removal of the winding 18 in the 6 o'clock position correspondingly not only saves time in the removal area, but at the same time also reduces the requirements for the storage of the winding shafts.

Figur 3 zeigt schematisch eine Ansicht einer bevorzugten Ausführungsform einer erfindungsgemässen Revolvereinheit 6 (der Einfachheit wird nachstehend das Referenzeichen 6' sowie alle zur Revolvereinheit 6' gehörenden Zeichen mit einem weggelassen). FIG. 3 schematically shows a view of a preferred embodiment of a turret unit 6 according to the invention (for simplicity, the reference character 6 'as well as all the signs belonging to the turret unit 6' are omitted below).

Am Fussende 24 befindet sich eine hier scheibenförmige Basisplatte 30, in der die Wickelwellen 10 bis 12 angeordnet sind. Durch die Basisplatte 30 verdeckt, d.h. auf deren Rückseite, ist die Antriebseinheit 25 (Figur 2) mit den Antriebskomponenten für die Rotation der Wickelwellen 10 bis 12 und die Drehung der Revolvereinheit 6 selbst angeordnet. Zur Entlastung der Figur sind alle umgebenden Elemente der Revolvereinheit 6 (s. Figur 2) sowie deren Lagerung weggelassen.At the foot end 24 there is a disc-shaped base plate 30, in which the winding shafts 10 to 12 are arranged. Concealed by the base plate 30, ie on the rear side thereof, the drive unit 25 (FIG. FIG. 2 ) are arranged with the drive components for the rotation of the winding shafts 10 to 12 and the rotation of the turret unit 6 itself. To relieve the figure, all surrounding elements of the revolver unit 6 (s. FIG. 2 ) and their storage omitted.

An der Kopfseite 26 befindet sich eine Trägerplatte 31, fest angeordnet auf einem Zentralrohr 32, das in der Längsachse 16 der Revolvereinheit 6 liegt und an der Basisplatte 30 festgelegt ist, so dass die Trägerplatte 31 mit der der Basisplatte 30 mit dreht. Ausnehmungen 33 bis 35 sind am Ort der Wickelwellen 10 bis 12 vorgesehen und weisen Abmessungen auf, die einen freien Durchgang von auf die ihr zugeordnete Wickelwelle zu ladenden Wickelkernen 17 oder von dieser zu entnehmenden fertigen Wickeln 18 erlauben.On the head side 26 is a support plate 31, fixedly mounted on a central tube 32 which lies in the longitudinal axis 16 of the turret unit 6 and is fixed to the base plate 30, so that the support plate 31 rotates with the base plate 30 with. Recesses 33 to 35 are provided at the location of the winding shafts 10 to 12 and have dimensions that allow a free passage of winding cores 17 to be loaded on the winding shaft assigned to it or finished wraps 18 to be taken from it.

An der Trägerplatte 31 sind drei Lageranordnungen für die Wickelwellen 10 bis 12 angeordnet, mit je einer Greiferanordnung 36 bis 38, welche ihrerseits je eine zwei Arme aufweisende, d.h. zweiarmige Schereneinheit 39 bis 41 besitzen.On the support plate 31, three bearing assemblies for the winding shafts 10 to 12 are arranged, each with a gripper assembly 36 to 38, which in turn each having a two arms, i. two-armed scissor unit 39 to 41 have.

Jede Schereneinheit 39 bis 41 ist mit zwei Scherenarmen 42,43 versehen, welche in Schliessstellung je über eine Ausnehmung 44,45 an der ihr zugeordneten Wickelwelle angreifen und diese so betriebsfähig lagern. Die Scherenarme 42,43 sind an Anlenkpunkten 46,47 in der Trägerplatte 31 gelagert und hier bevorzugt über pneumatische Zylinder 48,49 verschwenkbar, womit die Schereneinheiten 39 bis 41 geöffnet und geschlossen werden können.Each scissor unit 39 to 41 is provided with two scissor arms 42,43, which attack each other in the closed position via a recess 44,45 on its associated winding shaft and these operable to store. The scissor arms 42,43 are mounted at articulation points 46,47 in the support plate 31 and here preferably via pneumatic cylinder 48,49 pivotally, whereby the scissors units 39 to 41 can be opened and closed.

In der dargestellten Anordnung erstreckt sich die Trägerplatte 31 von der Achse 16 der Revolvereinheit 6 aus radial zwischen benachbarten Wickelwellen 10 bis 12 nach aussen, wobei die Scherenarme 44,45 der Greiferanordnung 36 bis 38 verschwenkbar in einem zwischen den Wickelwellen 10 bis 12 liegenden Bereich an der Trägerplatte 31 angelenkt sind.In the illustrated arrangement, the support plate 31 extends from the axis 16 of the turret unit 6 radially outwardly between adjacent winding shafts 10 to 12, wherein the scissor arms 44,45 of the gripper assembly 36 to 38 pivotally in a lying between the winding shafts 10 to 12 area the support plate 31 are hinged.

Bei der gezeigten Ausführungsform sind drei Wickelwellen 10 bis 12 und eine die Kontur eines dreiarmigen Sterns aufweisende Trägerplatte 31 vorgesehen, wobei an der Trägerplatte 31 drei als Schereneinheiten 39 bis 41 ausgebildete Greiferanordnungen 36 bis 38 angeordnet sind, deren verschwenkbar an der Trägerplatte 31 angeordnete Scherenarme 42,43 über ebenfalls an der Trägerplatte 31 angeordnete Antriebseinheiten, vorzugsweise pneumatische Zylinder 48,49 geöffnet und geschlossen werden.In the embodiment shown, three winding shafts 10 to 12 and a contour of a three-star star having support plate 31 are provided, wherein on the support plate 31 as three scissors units 39 to 41 formed gripper assemblies 36 to 38 are arranged, the pivotally mounted on the support plate 31 scissor arms 42nd , 43 also on the support plate 31 arranged drive units, preferably pneumatic cylinders 48,49 are opened and closed.

Figur 4a zeigt die Revolvereinheit 6 in einer Phase, in welcher die Lageranordnungen der Wickelwellen 10 und 12 geöffnet werden (Laden von Wickelkernen 17 auf die Wickelwelle 10 / Entnahme von Wickeln 18 von der Wickelwelle 12), während diejenige der Wickelwelle 11 geschlossen ist, da sich diese in der Wickelstation 14 (Figur 1) befindet. FIG. 4a shows the turret unit 6 in a phase in which the bearing assemblies of the winding shafts 10 and 12 are opened (loading winding cores 17 on the winding shaft 10 / removal of coils 18 of the winding shaft 12), while that of the winding shaft 11 is closed, as these in the winding station 14 ( FIG. 1 ) is located.

Die Scherenarme 42,43 werden dazu in Richtung der eingezeichneten Pfeile verschwenkt. Dazu sei bemerkt, dass die Lageranordnungen grundsätzlich von einander unabhängig und auch während der Drehung der Revolvereinheit 6 betrieben werden können.The scissor arms 42,43 are pivoted in the direction of the arrows. It should be noted that the bearing assemblies can in principle be operated independently of one another and also during the rotation of the turret unit 6.

Beispielsweise ist möglich, dass im Gegensatz zu der in der Figur gezeigten Bewegungsphase der Lageranordnungen diejenige in der 6 Uhr - Position (Entnahmestation 15, Figur 1) geschlossen bleibt, bis das Förderband 20 die Wickel 18 trägt (Figur 1), während diejenige der Ladestation noch während der Drehung der Revolvereinheit 6 oder unmittelbar danach öffnet.For example, it is possible that in contrast to the movement phase of the bearing arrangements shown in the figure, that in the 6 o'clock position (removal station 15, FIG. 1 ) remains closed until the conveyor belt 20 carries the winding 18 ( FIG. 1 ), while that of the charging station still opens during the rotation of the revolving unit 6 or immediately thereafter.

Figur 4b zeigt die Revolvereinheit 6 in einer Phase, in welcher neue Wickelkerne 17 geladen und die Wickel 18 entnommen werden: Die Lageranordnungen der Wickelwellen 10 und 12 sind vollständig geöffnet, die Scherenarme 42,43 befinden sich in Offenstellung, d.h. von den Wickelwellen weggeschwenkt und sind in der Trägerplatte 31 versenkt, so dass der Durchgang für die Wickel 18 nur durch die Abmessungen der Ausnehmungen 33 bis 35 begrenzt ist. FIG. 4b shows the turret unit 6 in a phase in which new hubs 17 loaded and the winding 18 are removed: The bearing assemblies of the winding shafts 10 and 12 are fully open, the scissor arms 42,43 are in the open position, ie pivoted away from the winding shafts and are in the support plate 31 sunk, so that the passage for the winding 18 is limited only by the dimensions of the recesses 33 to 35.

Durch die Anlenkung der Scherenarme 42,43 in einem Bereich zwischen benachbarten Wickelwellen 10 bis 12 ergibt sich in deren Offenstellung eine Lage, die einen nur geringen Abstand der (in Offenstellung vollständig freizuhaltenden) Ausnehmung 33 bis 35 vom Zentralrohr 32 erlaubt, so dass die Wickelwellen 10 bis 12 nahe an dieses gerückt werden können und damit die Revolvereinheit 6 im Ganzen kompakt ausgeführt werden kann. Zudem erlaubt diese Anlenkung der Scherenarme 42,43 die Ausnehmung 44 im Arm 42 so zu gestalten, dass die gelagerte Wickelwelle 10 bis 12 in der Wickelstation 14 (Figur 1) durch die Ausnehmung 44 gelagert wird, d.h. die dort wirkende Beanspruchung nicht geeignet ist, die Schereneinheit 39 bis 41 u öffnen.By the articulation of the scissor arms 42,43 in an area between adjacent winding shafts 10 to 12 results in its open position, a position which allows only a small distance of the (free in the open position) recess 33 to 35 from the central tube 32, so that the winding shafts 10 to 12 can be moved close to this and thus the turret unit 6 can be made compact as a whole. In addition, this articulation of the scissor arms 42,43 allows the recess 44 in arm 42 to be designed such that the mounted winding shaft 10 to 12 in the winding station 14 (FIG. FIG. 1 ) is supported by the recess 44, ie the stress acting there is not suitable, the scissor unit 39 to 41 u open.

Figur 5 zeigt eine Ansicht der Ausnehmung 35 der Trägerplatte 31 mit der aus der Schereneinheit 41 bestehenden Greiferanordnung 38 (natürlich sind die beiden anderen Ausnehmungen 33,34 mit den darin angeordneten Organen gleich ausgebildet). Hier ist ersichtlich, dass die Trägerplatte 31 als Doppelplatte ausgebildet ist, in deren Zwischenraum 50 die Scherenarme 42,43 versenkbar sind. Ebenfalls ist ersichtlich, dass auch der Scherenarm 42 doppelwandig mit einer äusseren Wand (110) und einer inneren Wand (111) ausgebildet ist, und wobei ein anderer Scherenarm (43,42) zwischen der äusseren Wand (110) und der inneren Wand (111) angeordnet ist. Durch die äussere Wand (110) und die innere Wand (111) wird ein Zwischenraum 51 gebildet, der den Scherenarm 43 aufnimmt, und der dadurch geführt ist. Zusätzlich verbessert ein am Scherenarm 43 angeordneter, in einer Nut 53 des Scherenarms 42 laufender Nocken 54 diese Führung und erhöht damit die Sicherheit und die koordinierte Bewegung der Scherenarme 42,43. FIG. 5 shows a view of the recess 35 of the support plate 31 with the consisting of the scissor unit 41 gripper assembly 38 (of course, the other two recesses 33,34 are formed with the same organs arranged same). Here it can be seen that the support plate 31 is formed as a double plate, in the intermediate space 50, the scissor arms 42,43 are retractable. It can also be seen that also the scissor arm 42 is double-walled with an outer wall (110) and an inner wall (111), and wherein another scissor arm (43, 42) is formed between the outer wall (110) and the inner wall (111 ) is arranged. Through the outer wall (110) and the inner wall (111), a gap 51 is formed, which receives the scissor arm 43, and is guided thereby. In addition, a cam 54 arranged on the scissor arm 43 and running in a groove 53 of the scissor arm 42 improves this guidance and thus increases the safety and the coordinated movement of the scissor arms 42, 43.

Figur 6a zeigt eine weitere bevorzugte Ausführungsform einer erfindungsgemässen Revolvereinheit 120. Ersichtlich sind zwei Wickelwellen 10 und 12, während die dritte Wickelwelle 11 (Figur 5) verdeckt ist. Weiter ersichtlich sind Greiferanordnungen 121 bis 123 mit je doppelwandigen Scherenarmen 124, bestehend aus einer äusseren Wand 125 (d.h. die bei der Aussenseite der Revolvereinheit 120 liegt) und einer inneren Wand 126 (die im Inneren der Revolvereinheit 120 liegt). Zwischen der äusseren Wand 125 und der inneren Wand 126 liegt ein zugeordneter Scherenarm 127. Die Scherenarme 124, 127 jeder Greiferanordnung 121 bis 123 befinden sich in Schliesstellung, umfassen die jeweilige Wickelwelle 10 bis 12 und bilden für diese eine Lagereinheit 130, die welche die jeweilige Wickelwelle 10 bis 12 über eine Lagerlänge I lagert, wie dies in Figur 6b näher dargestellt ist. FIG. 6a shows a further preferred embodiment of a turret unit 120 according to the invention. Two winding shafts 10 and 12 are visible, while the third winding shaft 11 (FIG. FIG. 5 ) is covered. Also visible are gripper assemblies 121 to 123 with each double-walled scissor arms 124, consisting of an outer wall 125 (ie, on the outside of the turret unit 120) and an inner wall 126 (located inside the turret unit 120). Between the outer wall 125 and the inner wall 126 is an associated scissor arm 127. The scissor arms 124, 127 of each gripper assembly 121 to 123 are in the closed position, comprise the respective winding shaft 10 to 12 and form for this a storage unit 130, which the respective Winding shaft 10 to 12 over a bearing length I stores, as in FIG. 6b is shown in more detail.

Figur 6b zeigt eine detaillierte Ansicht der Greiferanordnung 123, welche kurz vor ihrer Schliessstellung dargestellt ist und so den Blick auf das Ende der Wickelwelle 12 noch frei gibt. FIG. 6b shows a detailed view of the gripper assembly 123, which is shown shortly before its closed position and so the view of the end of the winding shaft 12 is still free.

Die nachstehende Beschreibung bezieht sich auf die Elemente der Greiferanordnung 123, gilt aber sinngemäss auch für die beiden anderen Greiferanordnungen 121 und 122 (einschliesslich der Wickelwellen 10 und 11) der Revolvereinheit 120 (Figur 6a):

  • Ersichtlich ist die äussere Wand 125 des Scherenarms 124, während dessen innere Wand 126 (Figur 6a) hier verdeckt ist. Ebenfalls ersichtlich ist der Scherenarm 127, der sich zwischen der äusseren Wand 125 und der (verdeckten) inneren Wand liegt. Die Dicke des Scherenarms 127 wird vom Fachmann gemäss den nachstehenden Bedingungen bestimmt.
The following description refers to the elements of the gripper assembly 123, but applies mutatis mutandis to the other two gripper assemblies 121 and 122 (including the winding shafts 10 and 11) of the revolver unit 120 (FIG. FIG. 6a ):
  • It can be seen the outer wall 125 of the scissor arm 124, while its inner wall 126 (FIG. FIG. 6a ) is hidden here. Also visible is the scissors arm 127 located between the outer wall 125 and the (hidden) inner wall. The thickness of the scissors arm 127 is determined by the person skilled in the art according to the following conditions.

Die Wickelwelle 12 besitzt vier Lager 130 bis 133, d.h. ein erstes Lager 130, eine zweites Lager 131, ein drittes Lager 132 und ein viertes Lager 133, die vorzugsweise als Rollenlager ausgebildet sind, aber vom Fachmann im Hinblick auf den konkreten Wickler in beliebiger Weise ausgebildet werden können. In Schliessstellung der Scherenarme 124,127 wirkt das erste Lager 130 mit der inneren Wand 125 des Scherenarms 124 (Figur 6a), das zweite Lager 131 sowie das dritte Lager 132 mit dem Scherenarm 127 und das vierte Lager 133 mit der äusseren Wand 125 des Scherenarms 124 zusammen. Mit anderen Worten ist es so, dass das erste Lager 130 und das zweite Lager 131 zusammen einen ersten Lagerbereich 135 und das dritte Lager 132 mit dem vierten Lager 133 zusammen einen zweiten Lagerbereich 136 für die Wickelwelle 12 bilden, deren Abstand der Lagerlänge l entspricht.The winding shaft 12 has four bearings 130 to 133, ie a first bearing 130, a second bearing 131, a third bearing 132 and a fourth bearing 133, which are preferably designed as roller bearings, but by the skilled person with regard to the specific winder in any way can be trained. In the closed position of the scissor arms 124, 127, the first bearing 130 interacts with the inner wall 125 of the scissor arm 124 (FIG. FIG. 6a ), the second bearing 131 and the third bearing 132 with the scissor arm 127 and the fourth bearing 133 with the outer wall 125 of the scissor arm 124 together. In other words, it is such that the first bearing 130 and the second bearing 131 together form a first bearing area 135 and the third bearing 132 with the fourth bearing 133 together form a second bearing area 136 for the winding shaft 12, whose spacing corresponds to the bearing length l.

Eine Lagerung mit einer Lagerlänge l bewirkt eine verbesserte Lagerung durch feste Einspannung der Wickelwelle 12, da sich die Einspannung über einen Längenabschnitt der Wickelwelle 12 erstreckt, was sich auf deren Biegelinie unter der Beanspruchung in der Wickelstation vorteilhaft auswirkt, beispielsweise im Hinblick auf die Resonanzfreqzenz (Vibrationen während der Wicklung) oder im Hinblick auf gleiche Pressung über die Breite aller Wickel durch die Kontaktwalze 19,19' (Figur 1). Insbesondere für grosse Durchmesser der Wickel bei hoher Wickelgeschwindikeit sind die Parameter Resonanzfrequenz und gleichmässige Pressung für eine einwandfreie Wicklung entscheidend.A bearing with a bearing length l causes improved storage by fixed clamping of the winding shaft 12, since the clamping extends over a longitudinal portion of the winding shaft 12, which has an advantageous effect on the bending line under the stress in the winding station, for example in view of the Resonanzfreqzenz (vibrations during winding) or in terms of equal pressure across the width of all the rolls through the contact roller 19,19 '( FIG. 1 ). Especially for large diameters of the winding at high winding speed, the parameters resonance frequency and uniform pressure are crucial for proper winding.

Entsprechend kann der Fachmann die Lagerlänge l nach den beiden genannten und auch nach anderen relevanten Parametern bestimmen und, beispielsweise bei der in den Figuren dargestellten Anordnung, damit auch die Breite des Scherenarms 127, welcher den Abstand der äusseren Wand 125 und der inneren Wand 124 (Figur 6a) bestimmt. Im Erfindungsgedanken ist mit enthalten, den zwischen der äusseren Wand 125 und inneren Wand 124 angeordneten Scherenarm ebenfalls doppelwandig auszuführen, um eine übermässig massive Ausführung dieses Scherenarms 124 (Figur 6a) zu vermeiden.Accordingly, the person skilled in the art can determine the bearing length l according to the two parameters mentioned above and also according to other relevant parameters and, for example, in the arrangement shown in the figures, thus also the width of the scissor arm 127 which determines the distance of the outer wall 125 and the inner wall 124 (FIG. FIG. 6a ) certainly. In the idea of the invention, the scissor arm arranged between the outer wall 125 and the inner wall 124 is likewise double-walled, in order to produce an excessively massive version of this scissor arm 124 (FIG. FIG. 6a ) to avoid.

Grundsätzlich können die Scherenarme mit beliebiger Breit ausgebildet werden, so dass für jeden konkreten Anwendungsfall die Lägerlänge l optimal realisiert werden kann. Dazu gehört auch, dass die Scherenarme im Lagerbereich vom Fachmann je nach Notwendigkeit derart ausgebildet werden, d.h. derart, dass sie die Wickelwelle über die Lagerlänge in einem oder in mehreren Punkten lagern und damit einspannen.Basically, the scissor arms can be formed with any width, so that for each specific application, the stock length l can be optimally realized. This also means that the scissor arms in the storage area are designed by the skilled person as necessary, i. E. such that they store the winding shaft over the bearing length in one or more points and thus clamp.

Die in den Figuren 1 bis 5 dargestellte bevorzugte Ausführungsform der vorliegenden Erfindung besitzt drei Wickelwellen, mit dem Vorteil, dass auf einer jeweiligen Wickelwelle nur Wickelkerne geladen bzw. Wickel entnommen werden. Erfindungsgemäss sind aber auch Revolveranordnungen mit nur zwei Wickelwellen, wobei dann während der Herstellung der Wickel auf der einen Wickelwelle auf der anderen Wickelwelle einerseits die Wickel entnommen und andererseits die neuen Wickelkerne geladen werden müssen. Weiter sind auch Konfigurationen mit mehr als drei Wickelwellen denkbar.The in the FIGS. 1 to 5 illustrated preferred embodiment of the present invention has three winding shafts, with the advantage that loaded on a respective winding shaft only hubs or winding are removed. However, according to the invention are also turret assemblies with only two winding shafts, which then removed during the preparation of the winding on one winding shaft on the other winding shaft on the one hand, the winding and on the other hand, the new hubs must be loaded. Furthermore, configurations with more than three winding shafts are also conceivable.

Weiter werden in der in den Figuren 2 bis 5 dargestellten Ausführungsformen auf der gleichen Seite die Wickel entnommen und die Wickelkerne geladen. Besitzt der Wickler gemäss Figur 2 das dort dargestellte Layout, ist dies vorteilhaft, da die Antriebseinheit auf der anderen Seite angeordnet werden kann. Solch ein Layout ist jedoch nicht zwingend. Erfindungsgemässen Ausführungsformen erlauben auch, Wickelkerne von der einen Seite her zu laden und die Wickel auf die andere Seite auszugeben. Dann sind die erfindungsgemässen Trägerplatten auf beiden Seiten vorzusehen, was vollständige Flexibilität im Layout des Wicklers erlaubt. Mit anderen Worten: die lösbar gelagerten Enden der Wickelwellen können auch auf verschiedenen Seiten der Revolvereinheit liegen.Continue to be in the in the FIGS. 2 to 5 illustrated embodiments taken on the same page, the winding and loaded the hubs. Does the winder according to FIG. 2 the layout shown there, this is advantageous because the drive unit can be arranged on the other side. However, such a layout is not mandatory. Allow embodiments according to the invention Also to load hemming cores from one side and spend the wraps on the other side. Then the inventive carrier plates are provided on both sides, which allows complete flexibility in the layout of the winder. In other words: the releasably mounted ends of the winding shafts can also lie on different sides of the turret unit.

Schliesslich sind gemäss der in den Figuren 2 bis 5 dargestellten, bevorzugten Ausführungsform die Wickelwellen am Fussende 24,24' (Figur 2) festgelegt. Gemäss einer noch weiteren, ebenfalls erfindungsgemässen Ausführungsform können die Wickelwellen ebenfalls am Fussende lösbar angeordnet werden, beispielsweise durch eine mit Greifferanordnungen ausgerüstete Trägerplatte, wie sie bereits am Kopfende der Revolvereinheit eingesetzt ist. Dadurch können Wickelwellen in radialer Richtung aus der Revolvereinheit entnommen und wieder in diese eingesetzt werden, was erlaubt, Wickelwellen ausserhalb der Revolvereinheit mit Wickelkernen zu beladen bzw. die Wickel ausserhalb der Revolvereinheit von der Wickelwelle zu entnehmen.Finally, according to the in the FIGS. 2 to 5 illustrated preferred embodiment, the winding shafts at the foot end 24,24 '( FIG. 2 ). According to yet another embodiment, also according to the invention, the winding shafts can likewise be detachably arranged at the foot end, for example by a carrier plate equipped with gripper arrangements, as already used at the head end of the revolving unit. As a result, winding shafts can be removed in the radial direction from the turret unit and reinserted into it, which allows to load winding shafts outside the turret unit with winding cores or to remove the reels outside the turret unit from the winding shaft.

Figur 6 zeigt eine Ansicht auf das Kopfende einer weiteren Ausführungsform der erfindungsgemässen Revolvereinheit 55. Ersichtlich sind die Wickelwellen 10 und 12 sowie das Zentrahlrohr 32, wobei die Wickelwelle 11 durch die Wickelwelle 10 verdeckt ist. FIG. 6 shows a view of the head end of another embodiment of the inventive turret unit 55. It can be seen, the winding shafts 10 and 12 and the center tube 32, wherein the winding shaft 11 is covered by the winding shaft 10.

Anstelle einer Trägerplatte 31 (Figuren 2 bis 4) ist ein doppelter Flanschring 52 vorgesehen, an welchem über Verschwenkachsen 56 verschwenkbare Scherenarme 57,58 angelenkt sind, dies sich im Wesentlichen vom Bereich der Achse 16 der Revolvereinheit radial weg erstrecken und die in Schliessstellung über Ausnehmungen 59,60 die jeweilige Wickelwelle 10 bis 12 lagern diese aber in Offenstellung freigeben.Instead of a carrier plate 31 (FIG. FIGS. 2 to 4 ) is a double flange 52 is provided, on which pivotable about 56 pivotable scissor arms 57,58 are substantially radially extending away from the region of the axis 16 of the turret unit and in the closed position on recesses 59,60 the respective winding shaft 10 to 12th store these but release in open position.

Eine hier dreiarmige Führungsplatte 60 besitzt in jedem ihrer Arme 61 eine in diesem radial verlaufende Führungsschiene 62 für ein Betätigungselement 63, das über Betätigungsarme 64,65 die Scherenarme 57,58 verschwenkt. Die Verschiebung des Betätigungselements 63 erfolgt über einen an der Rückseite der Arme 61 der Führungsplatte 60 vorgesehenen konventionellen Antrieb wie z.B. eine Gewindespindel, wie dies dem Fachmann geläufig ist.A here three-armed guide plate 60 has in each of its arms 61 in this radially extending guide rail 62 for an actuator 63, the scissor arms 57,58 pivots about actuating arms 64,65. The displacement of the actuating element 63 via a provided on the back of the arms 61 of the guide plate 60 conventional drive such as a threaded spindle, as is familiar to those skilled in the art.

Figur 7 zeigt eine Ansicht auf das Kopfende noch einer weiteren Ausführungsform der erfindungsgemässen Revolvereinheit 70 mit den Wickelwellen 10 bis 12, wobei am Zentralrohr 32 eine Ankerplatte 71 festgelegt ist, mit Stützarmen 72,73, die zwischen sich einen Durchgang für einen zu entnehmenden Wickel 18 bilden und pneumatische Zylinder 74,75 abstützen, welche je auf einen dreiarmigen Lagerstern 76,77 wirken. Durch die Betätigung der Zylinder 74,75 verdrehen sich die Lagersterne 76,77 mit ihren Armen 78,79 zu einander hin oder von einander weg, so dass eine zwischen den Armen liegende Wickelwelle 10 bis 12 in den Ausnehmungen 80,81 gelagert oder frei gegeben wird. FIG. 7 shows a view of the head end yet another embodiment of the inventive turret unit 70 with the winding shafts 10 to 12, wherein the central tube 32 an anchor plate 71 is fixed, with support arms 72,73, which form a passage for a winding 18 to be removed therebetween and support pneumatic cylinder 74,75, which each act on a three-armed bearing star 76,77. By operating the cylinder 74,75 rotate the bearing stars 76,77 with their arms 78,79 towards each other or away from each other, so that a lying between the arms winding shaft 10 to 12 stored or released in the recesses 80,81 becomes.

Fig. 8a bis 8c zeigen drei Ansichten aus unterschiedlicher Blickrichtung auf das Kopfende einer zusätzlichen Ausführungsform der erfindungsgemässen Revolvereinheit 90. Fig. 8a to 8c show three views from different directions on the head of an additional embodiment of the invention Revolvereinheit 90th

Figur 8a zeigt eine an der Stirnseite des Zentralrohrs 32 fest angeordnete, mit diesem mit drehende Trägerplatte 91, mit radial abstehenden, kurzen Fortsätzen 92, die sich in den Raum zwischen den Wickelwellen 10 bis 12 erstrecken (also Raum für die Entnahme eines Wickels 18 frei lassen) und im Aussenbereich als Lager für eine Drehachse 93 dienen, über die wiederum je ein Verriegelungsarm 94 um seine Mitte verdrehbar gelagert ist. FIG. 8a shows a fixedly arranged on the end face of the central tube 32, with this with rotating support plate 91, with radially projecting, short extensions 92 which extend into the space between the winding shafts 10 to 12 (ie leave room for the removal of a coil 18) and serve in the outer area as a bearing for a rotation axis 93, via which in turn a respective locking arm 94 is rotatably mounted about its center.

In der dargestellten Konfiguration bilden die Wickelwellen 10 bis 12 die Ecken eines gleichseitigen Dreiecks, wobei die Drehachsen 93 in der Mitte der Dreieckseiten liegen. Die Länge der Verriegelungsarme 94 ist derart gewählt, dass diese endseitig mit ihren Lagernuten 95 die Wickelwellen scherenartig umfassen und in ihrer Lage verriegeln können, diese also in Schliessstellung betriebsfähig lagern.In the illustrated configuration, the winding shafts 10 to 12 form the corners of an equilateral triangle with the axes of rotation 93 in the middle of the sides of the triangle. The length of the locking arms 94 is chosen such that these end with their bearing grooves 95, the winding shafts include scissor-like and can lock in position, so store them operationally in the closed position.

Die Lagerung wird gelöst, indem die Verriegelungsarme dem eingezeichneten Pfeil entsprechend im Uhrzeigersinn verdreht werden, so weit, bis die in ihrer Kontur dem Zentralrohr 32 entsprechende Ausnehmung 96 an diesem anliegt (und der Durchgang für Wickel 18 offen ist), wie dies durch den punktierten Pfeil angedeutet ist.The storage is achieved by the locking arms are rotated according to the arrow in the clockwise direction, so far until the corresponding in its contour the central tube 32 recess 96 abuts against this (and the passage for winding 18 is open), as indicated by the dotted Arrow is indicated.

Figur 8b zeigt den Antrieb der Verriegelungsarme über Zahnräder 100, die ihrerseits über ein zentrales Zahnrad 101 angetrieben sind. Diese Anordnung hat den Vorteil, dass das Zahnrad 101 über eine im Zentralrohr 32 verlaufende Welle angetrieben werden und damit der entsprechende Motor in der Antriebseinheit 25 (Figur 2) untergebracht werden kann, was die kompakte Ausbildung der dargestellten Revolvereinheit 90 unterstützt. FIG. 8b shows the drive of the locking arms via gears 100, which in turn are driven by a central gear 101. This arrangement has the advantage that the gear 101 are driven by a shaft extending in the central tube 32 and thus the corresponding motor in the Drive unit 25 ( FIG. 2 ), which supports the compact design of the illustrated turret unit 90.

Figur 8c zeigt die Verriegelungsarme 94 in Offenstellung und die damit frei kragenden Wickelwellen 10,11 mit dem offenen Durchgang für Wickel 18 bzw. Wickelkerne 17. FIG. 8c shows the locking arms 94 in the open position and thus freely cantilevered winding shafts 10,11 with the open passage for winding 18 and hubs. 17

Weitere Ausführungsformen mit Lageranordnungen gemäss den Figuren 6 bis 8 können ausgebildet sein, wie dies oben für die weiteren Ausführungsformen für eine Revolvereinheit nach den Figuren 2 bis 5 dargestellt ist.Further embodiments with bearing arrangements according to the FIGS. 6 to 8 may be formed as above for the further embodiments of a turret unit according to the FIGS. 2 to 5 is shown.

Claims (20)

  1. Winder for an endless lane of a plastic web (2), with a revolving unit (6, 6', 55, 90), which is constructed so as to be rotatable about its axis (16) and has at least two winding shafts (10 to 12, 10' to 12') running parallel to its axis (16), onto which winding cores (17) can be loaded, then wound with the web (2) to a roll (18), finally unloaded therefrom again as finished rolls (18), wherein on both sides of the revolving unit (6, 6', 55, 90) support arrangements are arranged, in which the winding shafts (10 to 12, 10' to 12') are supported at their corresponding ends therein, and wherein the support for one end of the winding shafts (10 to 12, 10' to 12') is constructed so as to be detachable, such that the respective winding shaft (10 to 12, 10' to 12'), with released support, can be loaded and unloaded from this end, characterized in that the detachably constructed support arrangements each have a gripper arrangement (36 to 38) with a two-armed scissor unit (39 to 41), the scissor arms (42, 43) of which surround the winding shaft (10 to 12, 10' to 12') in the closed position and are pivoted away therefrom in the open position.
  2. Winder according to Claim 1, wherein the support arrangements for the end, which is to be freed, of a respective winding shaft (10 to 12, 10' to 12') are detachable independently of each other.
  3. Winder according to Claim 1 or 2, wherein the revolving unit (6, 6') has a mounting plate (31), arranged perpendicular to its axis (16), co-rotating with the revolving unit, for the gripper arrangement (36 to 38), with dimensions which permit a free passage of winding cores (17) to be loaded onto the winding shaft (10 to 12, 10' to 12') associated therewith, or of finished rolls (18) to be unloaded therefrom.
  4. Winder according to Claim 3, wherein the mounting plate (31) extends outwards from the axis (16) of the revolving unit (6, 6') radially between adjacent winding shafts (10 to 12, 10' to 12') and the scissor arms (42, 43) of the gripper arrangement (36 to 38) are articulated pivotably on the mounting plate (31) in a region lying between adjacent winding shafts (10 to 12, 10' to 12').
  5. Winder according to Claim 4, wherein three winding shafts (10 to 12, 10' to 12') and a mounting plate (31) having the contour of a three-armed star are provided, and wherein on the mounting plate (31) three gripper arrangements (36 to 38), constructed as scissor units (39 to 41) are arranged, the scissor arms (42, 43) of which, arranged pivotably on the mounting plate (31), are opened and closed via driving units, preferably pneumatic cylinders (48, 49), likewise arranged on the mounting plate (31).
  6. Winder according to Claim 2, wherein the scissor arms (42, 43) are articulated pivotably in the region of the axis (16) of the revolving unit (55) thereon and extend substantially radially away therefrom.
  7. Winder according to Claim 1, wherein the detachably mounted ends of the winding shafts (10 to 12, 10' to 12') lie on different sides of the revolving unit (6, 6', 55, 90).
  8. Winder according to Claim 1, in which the revolving unit is rotatable such that the winding shafts (10 to 12, 10' to 12') for the loading with winding cores (17), for the winding of a roll (18) and for the unloading of a finished roll (17) lie at a respectively associated position, wherein the unloading position lies in the region of the 6 o'clock position.
  9. Winder according to Claim 8, wherein under the revolving unit (6, 6', 55, 90) beneath the unloading position conveyor means are e provided for the unloading of the rolls (18) from the winding shaft (10 to 12, 10' to 12').
  10. Winder according to Claim 1, wherein the scissor arms (42,43) in the closed position form a bearing unit (130) bearing the associated winding shaft (10 to 12 and 10' to 12') over a bearing length (I).
  11. Winder according to Claim 10, wherein the bearing unit (130) bears its associated winding shaft (1 to 12, 10' to 12') at two areas (135,136) spaced from each other, and wherein the distance between said two areas (135,136) is the bearing length (I).
  12. Winder according to Claim 1, wherein one of the scissor arms (42,124) of the gripper arrangements (36 to 38, 121 to 123) is constructed with double walls, having an outer wall (110; 125) and an inner wall (111,126), and wherein another scissor arm (43,127) is located in between the outer wall (110,125) and the inner wall (111,126).
  13. Winder according to the Claims 11 and 12, wherein in the closed position of the scissor arms (124,127) the inner wall (126) operatively cooperates with the other scissor arm (127) and forms a first bearing area (135) and in the same manner, the outer wall (135) operatively cooperates with the other scissor arm (126) and forms a second bearing area (135).
  14. Winder according to one of the preceding claims, wherein this has an extruder, connected upstream, for the production of the endless web lane, and a transport section for the web (2) between the extruder and the revolving unit (6, 6', 55, 90).
  15. Revolving unit for a winder according to one of the preceding claims, which has at least two winding shafts (10 to 12, 10' to 12') running parallel to its axis (16), onto which winding cores (17) can be loaded, then wound with the web (2) to a roll (18), finally unloaded therefrom again as finished rolls (18), wherein on both sides of the revolving unit (6, 6', 55, 90) support arrangements are arranged, in which the winding shafts (10 to 12, 10' to 12') are rotatably supported at their corresponding ends therein, and wherein the support for one end of the winding shafts (10 to 12, 10' to 12') is constructed so as to be detachable, such that the respective winding shaft (10 to 12, 10' to 12'), with released support, can be loaded and unloaded from this end, characterized in that detachably constructed support arrangements each have a gripper arrangement (36 to 38) with a two-armed scissor unit (39 to 41), the scissor arms (42, 43) of which surround the winding shaft (10 to 12, 10' to 12') in the closed position and are pivoted away therefrom in the open position.
  16. Revolving unit according to Claim 11, wherein the mounting plate (31) extends outwards from the axis (16) of the revolving unit radially between adjacent winding shafts (10 to 12, 10' to 12'), and the scissor arms (42, 43) of the gripper arrangement (36 to 38) are articulated pivotably on the mounting plate (31) in a region lying between the winding shafts (10 to 12, 10' to 12').
  17. Revolving unit according to Claim 15, wherein the scissor arms (42,43) in the closed position form a bearing unit (130) bearing the associated winding shaft (10 to 12 and 10' to 12') over a bearing length (I).
  18. Revolving unit according to Claim 17, wherein the bearing unit (130) bears its associated winding shaft at two areas (135,136) spaced from each other, and whereby the distance between said two areas forms the bearing length (I).
  19. Method for operating a winder according to one of Claims 1 to 14 or a revolving unit according to Claim 15 to 18, characterized in that the unloading of the rolls (18) takes place in the region of the 6 o'clock positionwherein on completion of a rotation stage of the revolving unit, by which rolls (18) which are to be unloaded have been brought into the region of the 6 o'clock position, a conveyor is brought from below up to the rolls (18), such that they rest with at least a portion of their weight thereon, before they are carried away by this conveyor.
  20. Winder for an endless lane of a plastic web (2), with a revolving unit (6, 6', 55, 90), which is constructed so as to be rotatable about its axis (16) and has at least two winding shafts (10 to 12, 10' to 12') running parallel to its axis, onto which winding cores (17) can be loaded, then wound with the web (2) to a roll (18), finally unloaded therefrom again as finished rolls (18), wherein on both sides of the revolving unit support arrangements are arranged, in which the winding shafts (10 to 12, 10' to 12') are supported at their corresponding ends therein, and wherein the support for one end of the winding shafts (10 to 12, 10' to 12') is constructed so as to be detachable, such that the respective winding shaft (10 to 12, 10' to 12'), with released support, can be loaded and unloaded from this end, characterized in that the winder is constructed such that respectively one winding shaft (10 to 12, 10' to 12') can be brought into the region of the 6 o'clock position and the rolls (18) can be unloaded in this regionwherein under the revolving unit conveyor means are arranged, which in the position of rest permits the rotation of the revolving unit, equipped with finished rolls (18), and which in the conveying position carries at least a portion of the weight of the rolls (18) which are to be unloaded.
EP12735435.5A 2011-07-05 2012-07-04 A winder and a turret Active EP2729396B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01122/11A CH705226A2 (en) 2011-07-05 2011-07-05 Winder.
PCT/CH2012/000154 WO2013003968A2 (en) 2011-07-05 2012-07-04 Winder

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EP2729396A2 EP2729396A2 (en) 2014-05-14
EP2729396B1 true EP2729396B1 (en) 2018-03-21

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EP12735435.5A Active EP2729396B1 (en) 2011-07-05 2012-07-04 A winder and a turret

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US (1) US10207886B2 (en)
EP (1) EP2729396B1 (en)
CN (1) CN103930360B (en)
CH (1) CH705226A2 (en)
WO (1) WO2013003968A2 (en)

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Publication number Priority date Publication date Assignee Title
CN105849021B (en) * 2013-10-15 2018-05-15 温德莫勒及霍尔希尔公司 Spool

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Also Published As

Publication number Publication date
CH705226A2 (en) 2013-01-15
WO2013003968A3 (en) 2013-03-21
US20150122934A1 (en) 2015-05-07
CN103930360A (en) 2014-07-16
WO2013003968A9 (en) 2013-05-10
EP2729396A2 (en) 2014-05-14
WO2013003968A2 (en) 2013-01-10
US10207886B2 (en) 2019-02-19
CN103930360B (en) 2016-05-25

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