EP2308785A1 - Device for supporting a coiling spool containing a coiled strip of material - Google Patents

Abstract

The device has a rotatably drivable hollow winding roller driving a winding spool i.e. hard cardboard case, by friction. The spool is held on a winding shaft (21) accommodated in a winding accommodating device (23) i.e. main winder, at a variable distance with respect to the roller. The shaft is supported on supports (27, 28) at sides within an area of the device (23). A distance (a) of the supports measured in an axial direction of the shaft, is variably formed based on adjustment to a different length of the spool corresponding to a different width of a wounded material web e.g. paper web.

Description

The invention relates to a device for receiving a wound coil having a wound material web according to the preamble of claim 1.

Such a rewinder is out of the DE 102 97 181 T5 known. The two ends of the winding shaft or the bearing housings formed there are in this case supported in the winding receiving device on a support surface defining a carriage, which is guided along guides which are formed on a stationary support frame. An operation of the rewinder with different widths of material webs or according to different widths of winding reels or winding is not addressed here.

Another rewinder is out of the EP 1 454 858 A1 known. Here, the held between two roller arms of the rewinder core of the roll is drivable by means of drivable chuck and an engageable on the winding, non-driven, free-running application roller to ensure a bubble-free winding of the web. When converting to another web width, the distance between the roller arms is varied according to the length of the core. In order to avoid a replacement of the application roller, there is proposed to divide the application roller into several roller segments and to employ only the segments of corresponding length when changing the web width.

In another rewinder, depending on the width of the web winding reels, z. B. Hard cardboard tubes of different lengths placed on the winding shaft, the decorative pressure z. B. widths of 1,850 mm, 2,070 mm and 2,200 mm. Here is the Material web process due driven to fixed edge, for example on the operating side of the machine, ie the side of the machine facing edge of the web has regardless of the width of the web always the same position. This in turn implies that at smaller widths of the web than the maximum processable width of the winding is always stored eccentrically in the machine, so that there is an imbalance with respect to the arrangement winding roller / winding. This asymmetry, in turn, can have negative effects on the winding quality, especially at high winding speeds, after the asymmetrically loaded winding shaft can deflect unbalanced.

From the DE 697 12 354 T2 a rewinder is known for winding a material web onto a reel spool. In this case, a motor-driven winding roller is provided, to which the winding bobbin by means of a winding shaft can be adjusted. This rewinder has a pre-winding device arranged upstream of the winding receiving device. The winding shaft is mounted in the Vorwickeleinrichtung by means of rolling bearings. Also, a guide rail for axial lateral guidance of the winding shaft in the pre-winding and in the winding receiving device is provided.

The DE 1 013 295 A discloses an apparatus for receiving a wound coil having a wound material web having a plurality of winding shafts. The winding shafts are formed differently depending on the width of the material web.

The DE 1 574 632 B , the DE 30 15 547 C2 , the DE 42 01 326 A1 , the DE 198 57 205 A1 , the US 3 411 734 A , the US 1 951 715 A , the US 2 270 806 A and the US 3,365,141 describe various embodiments of devices for winding webs of material.

The WO 2007/096917 A1 discloses a device for receiving a wound coil having a wound material web to form a coil, with a rotatably driven winding roller to which the winding bobbin is adjustable, wherein the winding bobbin is held on a winding shaft, wherein the winding shaft is receivable by a winding receiving device in which it is accommodated variable in distance with respect to the winding roller, and wherein the winding shaft in the region of the winding receiving device on both sides Auflagern is stored.

The invention has for its object to provide a device for receiving a wound material web having a winding spool.

The object is achieved by the features of claim 1.

The achievable with the present invention consist in particular in that now the winding shaft, regardless of the width of the web or the length of the roll always at least substantially symmetrical and can be supported on both sides of the roll each close to the winding end, so that the deflection of the flexible winding shaft can always be reduced to a minimum and an asymmetry can be at least substantially avoided, which in total the winding quality can be improved.

Embodiments of the invention are illustrated in the drawings and will be described in more detail below.

Fig. 1

einen Aufwickler in perspektivischer Darstellung, mit einem teilweise gefüllten Wickel in einer Übergabeposition von einer Vorwickeleinrichtung zu einer Wickelaufnahmeeinrichtung;

Fig. 2

den Aufwickler gemäß Fig. 1 in Seitenansicht, mit einem an eine

Fig. 3

Absenkeinrichtung übergebenen vollen Wickel und einem in der Vorwickeleinrichtung befindlichen leeren Wickel; eine Wickelaufnahmeeinrichtung eines Aufwicklers mit einer Wickelwelle für eine erste Breite eines Wickels und den Trägern in einer Wickel-Aufnahmestellung;

Fig. 4

die Wickelaufnahmeeinrichtung gemäß Fig. 3 mit einer Wickelwelle für eine zweite Breite eines Wickels und den Trägern in einer Wickel-Aufnahmestellung;

Fig. 5

die Wickelaufnahmeeinrichtung gemäß Fig. 3 mit den Trägern in einer WickelAbgabestellung;

Fig. 6

eine Seitenansicht der Lagerung der Wickelwelle an den Trägern;

Fig. 7

eine Seitenansicht einer Wickelwelle für eine erste Breite eines Wickels gemäß Fig. 3;

Fig. 8

eine Seitenansicht einer Wickelwelle für eine zweite Breite eines Wickels gemäß Fig. 4;

Fig. 9

eine perspektivische Teilansicht einer Vorwickeleinrichtung eines Aufwicklers in einer Ladeposition;

Fig. 10

die Vorwickeleinrichtung gemäß Fig. 9 in Übergabeposition zur Wickelaufnahmeeinrichtung;

Fig. 11

eine Seiten-Teilansicht der Vorwickeleinrichtung gemäß Fig. 10 mit aufgenommener Wickelwelle.

Show it:

Fig. 1

a rewinder in perspective view, with a partially filled winding in a transfer position of a Vorwickeleinrichtung to a winding receiving device;

Fig. 2

according to the rewinder Fig. 1 in side view, with one on one

Fig. 3

Lowering device handed full winding and located in the Vorwickeleinrichtung empty winding; a winding receiving means of a winder with a winding shaft for a first width of a roll and the carriers in a winding receiving position;

Fig. 4

the winding receiving device according to Fig. 3 with a winding shaft for a second width of a roll and the carriers in a winding receiving position;

Fig. 5

the winding receiving device according to Fig. 3 with the carriers in a winding delivery position;

Fig. 6

a side view of the storage of the winding shaft to the carriers;

Fig. 7

a side view of a winding shaft for a first width of a roll according to Fig. 3 ;

Fig. 8

a side view of a winding shaft for a second width of a roll according to Fig. 4 ;

Fig. 9

a partial perspective view of a Vorwickeleinrichtung a winder in a loading position;

Fig. 10

the Vorwickeleinrichtung according to Fig. 9 in transfer position to the winding receiving device;

Fig. 11

a side partial view of the Vorwickeleinrichtung according to Fig. 10 with recorded winding shaft.

First, it will open Fig. 1 and 2 With reference made to the general structure of a winder of the type in question will be described, this rewinder does not have the or all features; These are then used on the basis of Fig. 3 to 11 but with reference to the rewinder according to Fig. 1 and 2 , are explained.

The rewinder comprises a machine frame 01, on which, inter alia, a plurality of rollers 02; 03; 04; 06; 07; 08; 09 are rotatably supported, via which a material web 11, in particular a printing material 11, for example, a paper web 11 or for example a film or laminated paper / aluminum foil a reel spool 12, for example, a hard cardboard tube 12 is supplied to be wound into a roll 13. Specifically, a roller 02 formed as an inlet roller 02, a guide roller 03, a guide roller 04, a measuring roller 06, a tension roller 07, a pendulum roller 08 and a winding roller 09; 03; 04; 06; 07; 08; 09 be provided. The draw roller 07 and the winding roller 09 can be driven by motor, for example by means of a servo motor. For rapid deceleration of the winding roller 09, this is provided at one of its axial ends with a brake disk 10. The web tension of the drawn-in material web 11 is regulated by suitable electronics by means of the draw roller 07, the pendulum roller 08 and the measuring roller 06. To support the roll change, a perforator 14 may be incorporated.

The trained as a hard cardboard tube 12 winding bobbin 12 is detachably mounted on a winding shaft 101 and is held there in a known per se and not shown manner. The winding shaft 101 together with reel spool 12 is employed in the winding operation against the motor-driven winding roller 09 under tension if necessary and thus driven by the winding roller 09, whereby the over the winding roller 09, through the gap between the winding roller 09 and reel spool 12 or reel 13 and the reel spool 12 being wound around web 11 is gradually wound up into a reel 13. The web tension and the contact pressure generate while the required winding hardness of the individual winding layers to each other.

The resulting winding 13 is supplied after reaching its final size of a lowering device 16, by means of the finished winding 13 is discharged from the winder, for example, to a transport device not shown for removal or further transport of the roll 13. The lowering device 16 can as shown two by means of a hydraulic device 17 pivotable pivot arms 18 which are connected to each other via a shaft 19 drivingly connected.

The hollow winding spool 12, which may be formed as hard cardboard sleeve 12, may have an inner diameter of, for example 76 mm +/- 20% or an inner diameter of, for example, 150 mm +/- 20% and an axial length, for example between 500 and 5,000 mm, preferably between 1,500 and 3,000 mm, for example an axial length of 1,850 mm +/- 5% or of 2,200 mm +/- 5%. The rewinder is designed for the widest possible material web 11 or reel spool 12 and in the case of a narrower material web 11 or reel spool 12, the same, with respect to their length on the longest possible reel spool 12 designed winding shaft 101 is equipped with a correspondingly shorter reel spool 12.

The clamping of the reel spool 12 or hard cardboard tube 12 on a winding shaft 101 can be done in a known per se and not shown manner, for example via jaws or clamping bars, which are incorporated in the winding shaft 101. The generation of the clamping force can be done for example via pneumatic, spring force or a mechanical threaded spindle with expanding jaws.

The rewinder is designed for nonstop operation, ie it does not have to be stopped for the removal of a full roll 13 and the feeding of a new winding shaft 101 equipped with a reel spool 12. For this purpose, the rewinder comprises a pre-winding device 102, also called "orwickler" 102, which is a new, with a winding spool 12 provided winding shaft 101 can record while the previous winding 13 is still finished bespult, and further can already produce a winding 13 of a certain initial size, and a winding receiving means 103, also called "Hauptwickler" 103, in which a from Vorwickler 102 partially wound up and handed over the coil 13 is finished wound.

The pre-winder 102 comprises two swiveling arms 106 which can be swiveled together by means of a pneumatic drive 104, for example, which are pivotable about the axis of the winding roller 09. The pivot arms 106 have at their free ends U-shaped recesses 107 for receiving and guiding a winding shaft 101, wherein a recorded in the pivot arms 106 winding shaft 101 herein by means of z. B. pneumatically controlled hold-108 held and pressed with the desired force in the direction of winding roller 09.

The main winder 103 likewise comprises two swiveling arms 111, which can be pivoted together by means of a pneumatic drive 114, for example, via a shaft 109 and which engage on the side wall sections 112; 113 of the machine frame 01 are pivotally mounted. Again, the free ends of the pivot arms 111 in approximately U-shaped recesses 116 which serve to receive and guide a winding shaft 101 in the main winder 103. In the area of the main winder 103, the end sections of the winding shaft 101 lie in each case on one on the upper edge of the respective side wall section 112; 113 trained horizontal guide rail 117 and with increasing winding size of the winding 13 thus away from the winding roller 09 is displaceable, wherein the winding shaft 101 is guided in the pivot arms 111 and the required contact pressure to the winding roller 09 is maintained.

In the case of the embodiment of the rewinder described here, an automatic reel change during production essentially takes place as follows:

In the with its U-shaped recess 107 facing up Vorwickler 102 a winding shaft 101 is inserted with an empty reel spool 12. By means of an acceleration drive, not shown, which engages with a gear of the winding shaft 101, the winding shaft 101 is pre-accelerated to production speed.

The winding shaft 101 and the reel spool 12 is pressed by means of the blank holder 108 against the winding roller 09 and the winding shaft 101 or reel spool 12 comes into contact with the web 11, for example, paper web 11. As soon as the paper web 11 in contact with a prepared splice on the Winding bobbin 12 comes, tears the paper web 11 between the previous, fully wound roll 13 and the splice.

The acceleration drive now pivots and is switched off. The drive of the new winding shaft 101 is now carried out only by friction with the winding roller 09, wherein the contact pressure on the hold-108 is generated.

The pivot arms 111 of the Hauptwicklers 103 are at this time in a transfer position, as in Fig. 1 is shown. From a certain winding diameter, for example, 280 mm, the pivot arms 106 of the prewinder 102 begin to pivot down to the transfer position to the Hauptwickler 103. For a specific winding diameter, for example a winding diameter of 300 mm, the preliminary winder 102 is in the transfer position to the main winder 103; in this phase, the U-shaped recess 107 of the pivot arms 106 of the prewinder 102 is parallel to the guide rail 117 of the Hauptwicklers 103, such as in this phase, the pivot arms 106 of the Vorwicklers 102 and the pivot arms 111 of the Hauptwicklers 103 this in Fig. 1 is shown, and the now underlying edge of the recess 107 is at the same height as the upper edge of the guide rail 117, so that the winding shaft 101 together with winding 13 with increasing winding diameter can now slide along the guide rail 117.

The winding shaft 101 is now pressed by the main winder 103 to the winding roller 09. The contact pressure is controlled depending on the roll diameter of the roll 13. The hold-downs 108 of the pre-winder 102 are released in this operating phase and are open. At a certain winding diameter, for example at 430 mm, the pre-winder 102 pivots back up into its loading position, so that a next winding shaft 101 together with the prepared reel spool 12 can be inserted into the pre-winder 102.

The Hauptwickler 103 now pivots with increasing winding diameter in the direction of lowering device 16. Upon reaching a predetermined winding diameter or a predetermined length of the wound material web 11, the automatic roll change takes place as described above, wherein after adhering the material web 11 to the reel spool 12 of the next winding shaft 101st and the separation of the material web 11 of the main winder 103, the winding 13 of the lowering 16 supplies. After the main winder 103 has reached its transfer position to the lowering device 16, the main winder 103 pivots back directly into its transfer position to the preliminary winder 102.

The resting on the Absenkeinrichtung 16 winding 13 is still in rotation and is now brought to a standstill by means of a hydraulic brake, not shown, which acts on a fixed to an axial end of the winding shaft 101 brake disk 118. As soon as the winding 13 has come to a standstill, it can be lowered by manual actuation of a pushbutton formed on the machine control station 20 by means of the lowering device 16, which is then swung back into its transfer position after removal of the roll 13 by actuation of said pushbutton.

The rewinder corresponds to the above rewinder in structure and function in large

Share so that it can be referred to. However, the formation of the provided winding shafts 21, the formed pre-winding device 22 or the preliminary winder 22, as well as the formed winding receiving device 23 or the main winder 23, which will be described below with reference to FIGS Fig. 3 to 11 will be explained in detail.

Fig. 3 to 5 each show a winding receiving device 23 and a main winder 23, which receives a winding shaft 21 and 21 a or 21 and 21 b. The winding shaft 21 a according to Fig. 3 is different from the winding shaft 21 b according to Fig. 4 , In particular, the winding shaft 21 a for receiving longer winding coils 12 and hard cardboard tubes 12 is formed as the winding shaft 21 b, as will be explained in more detail below.

The main winder 23 comprises two carriers 24; 26, each having a support 27; 28 define for the winding shaft 21 a and 21 b. Each carrier 24; 26 is held on a support frame 29 and 31, respectively. At least one of the two support frames 29; 31 is in the direction of the axis of the winding shaft 21 a; 21 b adjustable formed, as indicated by the arrow A, which shows the adjustment direction. In the case of the described embodiment, the support frame 31 is adjustable, while the support frame 29 is stationary. Also, the support frame 29 may be adjustable, preferably both support frames 29; 31. However, due to the operation of the material web 11 on fixed edge, it is not predominantly adjusted. The stationary support frame 29 may in particular be arranged on the operating side of the machine, while the adjustable support frame 31 may be arranged on the drive side of the machine. Thus, in the case of the embodiment, a support 28 of the main winder 23 in the direction of the axis of the winding shaft 21 a; 21 b changeable and the other support 27 formed fixed in this direction.

The adjustability of the support frame 29 and / or 31 can be accomplished, for example, that the corresponding support frame 29; 31 at certain different positions on the machine frame 01 fixed, z. B. screwed, or that the support frame 29; 31 on parallel to the winding shaft 21 a; 21 b extending, fixed to the machine frame 01 guide rails is displaceable, possibly via a suitable motor drive, and can be locked in certain functional positions.

Thus, the winding shaft 21 a and 21 b in the region of the main winder 23 on both sides on supports 27; Stored 28 and the distance a of the two supports 27; 28 is formed according to the width of the wound material web 11 and the winding coil provided for this purpose 12 changeable. Due to the variability of the mutual distance a of the supports 27; 28, it is possible, the respective winding shaft 21 a; 21 b directly adjacent to the two ends of the winding coil used in each case 12 or immediately adjacent to the material web 11, close to the web edge to support or store, regardless of the respective width of the web 11 and the respective length of the reel spool 12th , so that the deflection of the flexible winding shaft 21 a; 21 b can always be reduced to a minimum and an asymmetry of the deflection can be at least substantially avoided, whereby the overall winding quality can be improved.

The carriers 24; 26 are in a plane perpendicular to the axis of the winding shaft 21 a; 21 b movable, in particular rectilinearly movable, in particular clearance, arranged. For this purpose, the carriers 24; 26 movably guided on the respective support frame 29 and 31, in particular guided in a linearly displaceable manner, in the case of the embodiment in each case via a pair of guide rails 61; 62, on the respective support frame 29; 31 are attached, wherein on the carriers 24; 26 with the guide rails 61; 62 cooperating, not shown guide rollers can be stored. The two carriers 24; 26 are moved together or synchronously, which can be solved in a conventional manner, also not shown manner by mechanical or electronic means, and to drive the carrier 24; 26 may be provided, for example, a non-illustrated hydraulic drive. Fig. 3 shows the carriers 24; 26 of the main winder 23 in a first position, which may be a winding or winding shaft receiving position, and Fig. 5 shows the carriers 24; 26 in a second position, which may be a winding-dispensing position, for example, for delivery to a lowering device 16 (see. Fig. 1 and 2 ). Fig. 4 on the other hand shows the carrier 24; 26 as in Fig. 3 again in its receiving position, but now with a zoom down to the stationary support frame 29 carrier frame 31 and thus one opposite Fig. 3 reduced distance a of the supports 27; 28 for operation of the rewinder with a reel spool 12 of smaller length or a material web 11 of smaller width, compared with the in Fig. 3 illustrated situation.

While in the foregoing only two different distance positions of the supports 27; 28 and the carrier 24; 26 and the carrier racks 29; 31 described and shown in the drawing, corresponding to two different widths of the material web 11, it is understood that a plurality of different distance positions are possible, basically any number of distance positions according to any number of distance positions of the carrier 24; 26 and the carrier racks 29; 31st

The supports 27; 28, the carrier 24; 26 are each from one at the upper end of the carrier 24; 26 arranged bearing 32 in the form of a roller pair 32, consisting of two roller bearings rollers 32 '; 32 ", namely a spherical roller bearing pair 32 in steady rest, hereinafter called lunette bearing 32 formed, which in Fig. 6 again shown in side view. As in particular from Fig. 6 it can be seen, the rollers of the spherical roller bearing pair 32 are arranged at least substantially in a horizontal plane. The steady bearing 32 receives the weight forces of the roll 13 and allows the rotation of the roll thirteenth

So that the winding shaft 21 does not jump out of the steady rest bearings 32 under the effect of the contact force of the main winder 23 against the winding roller 09, each steady rest bearing 32 associated with a winding shaft 21 in functional position on the steady rest bearing 32 locking device 33. The locking device 33 thus takes over the securing of the roll 13 in the steady rest bearing 32 after the transfer from the preliminary winder 22 to the main winder 23.

The closing device 33 may comprise a closing roller 36 which can be inserted between an opening position in which a winding shaft 21 can be inserted into the steady rest bearing 32 and a closing position in which the closing roller 36 secures the winding shaft 21 in its functional position in the steady rest bearing 32. is movable. The closing roller 36 may be rotatably mounted on a movable, in particular pivotable arm 34, in particular at the end of a pivot arm 34, and z. B. hydraulically controlled to the winding shaft 21 and then roll on the winding shaft 21. In its closed position, the locking device 33 is located above the two rollers of the spherical roller bearing pair 32 and between the two rollers in a 12 o'clock position, as in Fig. 6 shown. The winding shaft 21 is in the region of the supports 27; Thus each fixed in a three-point bearing, which three roller bearings rollers 32 '; 32 ", 36 has.

By using the described steady rest bearings 32, there is the further advantage that the previously commonly used ball bearings, which are required on the winding shaft 101 to store them, omitted. These bearings complicate the handling of the winding shafts 101 and increase their weight.

As described above, the distance a between the two supports 27; 28 depending on the web width or length of each winding coil 12 used variable. The winding shafts 21 a; 21 b are formed differently depending on the width of the material web 11 and axial length of the reel spool 12, in particular, the bearing portions 37; 38, in particular winding receiving bearing portions 37; 38 or races 37; 38, with which the winding shafts 21 a; 21 b in the supports 27; 28 and the steady rest bearings 32 of the Hauptwicklers 23 rest, at least partially at different axial Positions formed corresponding to the respective distance a between the two supports 27; 28. Each length of a reel spool 12 is thus assigned a separate type of winding shaft, with correspondingly (at least partially) differently positioned bearing sections 37; 38 with a length of the corresponding reel spool 12 adapted bearing distance.

The Wickalaufnahme-bearing portions 37; 38 of the winding shaft 21 may also be formed symmetrically. The support racks 29; 31 are moved symmetrically depending on the length of the reel spool 12.

The in connection with the 3 and 4 used winding shafts 21 a and 21 b are in FIGS. 7 and 8 shown again. The bearing sections on the in 3 and 4 It can be seen that the bearing portions 37 on the operating side, regardless of the type of winding shaft, are preferably always arranged in a fixed axial position, namely at an end region of the winding shaft 21a; 21 b, so that the material web 11 or the winding 13 is always arranged with its one side as far as possible on the operating side, while the axial position of the bearing portions 38 varies.

Preferably, it is further provided that regardless of the winding shaft type, d. H. regardless of the respective different axial position of the bearing portion 38, all winding shafts 21 a; 21 b each have the same overall length, which simplifies in particular the handling and storage. This can also apply to "variable-width prewinders".

The winding shafts 21 a; 21 b are formed so that they each have only as much clamping length or clamping jaws, as required for receiving a winding spool 12 of the length to be used in each case, in other words, the length of the respective Winding coil clamping portion 57 of the respective winding shafts 21 a; 21 b is the length of the winding coil 12 used in each case adapted.

While in the Fig. 3 to 8 Winding shafts 21 a; 21 b are shown for two different winding widths, it is understood that more than two winding shaft types can be provided, corresponding to more than two winding shaft widths, z. B. three, four or even more winding shaft types, in which at least one of the two winding receiving bearing portions 37; 38 is formed in each case in a different axial position and thus each different distances a between the winding receiving bearing portions 37; 38, but preferably all the same overall length.

The rewinder according to the invention further comprises a pre-winder 22 and a pre-winder 22, respectively, which is similar in construction to the rewinder according to FIG Fig. 1 and 2 , Fig. 9 shows a portion of the pre-winder 22 in its upwardly directed receiving position, together with a portion of a guide rail 39 of the main winder 23 and a guided therein end of a winding shaft 21 (shown for clarity without the associated winding 13). Fig. 10 shows the Vorwickler 22 in its downwardly pivoted transfer position to the Hauptwickler 23; to illustrate the operation of the winding shaft 21 is shown here in two different positions, each in turn without the associated winding thirteenth

The pre-winder 22 comprises two mutually opposite, jointly by means of a not shown here, for example pneumatic drive, pivotable pivot arms 41 which are pivotable about the axis 42 of the winding roller 09. In the Fig. 9 to 11 only one of the two pivot arms 41 is shown. The two pivot arms 41 of the prewinder 22 are axially outside of the two carriers 24; 26 of the main winder 23 is arranged.

The pivot arms 41 have at their free ends U-shaped recesses 43 for receiving and guiding a winding shaft 21, wherein a recorded in the pivot arms 41 winding shaft 21 herein by means of z. B. pneumatically controlled hold-down 44 and pressed with the desired force in the direction of winding roller 09.

Each pivot arm 41 has an axially inwardly extending, seen in the axial direction of the winding shaft 21, in cross-section U-shaped portion 46 in which various guide and bearing sections for guiding and supporting the winding shaft 21 are formed, as will become apparent from the following becomes.

For supporting the winding shaft 21 in the pivot arms 41 of the preliminary winder 22, the winding shaft 21 comprises two bearing sections 47; 48, in particular Vorwickel-bearing sections 47; 48, which are assigned schwenkarmseitige bearing elements. The bearing distance between the two Vorwickel-bearing sections 47; 48 is always the same, irrespective of the type of winding shaft used, ie. H. the bearing sections 47; 48 are always at the same axial position of the winding shaft 21, regardless of the respective position of the winding receiving bearing portions 37; 39 according to different lengths of winding coils 12. In a variable-width pre-winder, the bearing distance can also be designed differently.

However, the pre-winder 22 can also be made variable in width analogously to the main winder 23. This has the advantage that even then the winding shaft 21; 21a; 21 b in the pre-winder 22 can be received very close to the sleeve end or next to the paper web 11. As a result, in the case of very sensitive papers, the winding properties when winding the paper roll on the hard cardboard sleeve 12 can be improved because the bending of the winding shaft 21; 21a; 21 b can be reduced (wrinkling). For this it is not absolutely necessary that the winding shafts 21; 21a; 21 b of the different paper web widths then have different lengths in their total length. You just need to add another extra inner storage for inclusion in the own "variable-width pre-winders". Ie. the pre-winder bearing sections 47 and 48 are located immediately adjacent to the winding receiving bearing sections 37 and 38, the support sections 52 (for hold-down 44) again directly adjacent thereto. The guide portion 53 remains in an existing position. The pre-winder 22 is then mechanically attached to the support racks 28; 31 attached and then moves automatically with their adjustment.

The position of the brake disc and the acceleration drive remains on the same track of the fixed pre-winder. Thus, the total length of the different winding shafts remain the same.

The winding shaft 21 may in Vorwickler 22 in particular by means fixed to the winding shaft 21 bearings 47; Be stored 48, d. H. the pre-winding storage sections 47; 48 of the winding shaft 21 are preferably each of at least one rolling bearing 47; 48 formed at each of the two end portions of the winding shaft 21, wherein the rolling bearings 47; 48 as a ball bearing 47; 48 may be formed, in particular as deep groove ball bearings 47; 48th

The winding shaft 21 is connected to the deep groove ball bearings 47; 48 in grooved linear guides 49 of the pivot arms 41 inserted, which are formed in the respective section 46, see. z. B. Fig. 9 , The linear guides 49 are designed to be adjustable so that the play of the winding shafts 21 in the linear guide 49 of the preliminary winder 22 can be minimized. A winding shaft 21 is thus in the pivot arms 41 on the one hand via the roller bearings 47; 48 rotatably and on the other hand to adapt to winding on increasing winding diameter along the U-shaped recess 43 and the linear guide 49 slidably mounted.

The example hydraulically or pneumatically controlled hold-down 44 is used to secure the winding shaft 21 in the recesses of the Vorwicklers 22 and for pressing the roll 13 to the winding roller 09 with the desired bias. Each swing arm 41 is assigned a hold-down 44. The hold-down 44 is between a release position in which the winding shaft 21 is released for loading or unloading, and a functional position in which the winding shaft 21 is held in the Vorwickeleinrichtung 22 in its operating position, movable, in particular formed pivotable. The hold-down 44 carries at its free end a roller 51 which rolls in the functional position of the blank holder 44 on the winding shaft 21.

On the winding shaft 21, a support portion 52 is formed on both sides, which immediately adjacent to the respective Vorwickel-bearing portion 47; 48 is arranged, in each case on the inner side, and the roller 51 is associated with a respective hold-down 44. With the hold-downs 44 in their functional position, their two rollers 51 thus roll on the two support sections 52 of the winding shaft 21.

The described design of Vorwickler 22, Hauptwickler 23 and winding shafts 21 thus leads to a system in which the Vorwickler 22 over all possible paper web widths has the maximum storage width, the Hauptwickler 23, however, always individually has a paper web width-dependent bearing width. The winding shafts 22 all have the same overall length and the same bearing sections 47; 48 for the pre-winder 22, but individually paper web width-dependent bearing portions 37 and / or 38 for the main winder 23rd

Also, the pre-winder 22 may be wide-variable.

It will be up again FIGS. 7 and 8 Referenced. Each winding shaft 21 has on at least one of its two end portions a guide portion 53 for axially guiding the winding shaft 21 in the region of the preliminary winder 22 and / or the main winder 23. Each winding shaft 21 preferably has in each case a single guide section 53, which preferably faces the operating side of the machine.

The guide section 53 is preferably designed as a radially projecting and / or recessed portion and, viewed in the axial direction, is arranged outside next to the pre-winding bearing section 47. The guide portion 53 may be formed as a cylindrical guide portion 53, in particular as a rolling bearing 53, for example as a ball bearing 53, in particular as deep groove ball bearings 53, and operates in the manner described below with machine-side guide means 58; 59 together.

Each winding shaft 21 further has at one of its end regions, in particular at the end portion opposite the guide portion 53, another functional portion 54 which adjoins the pre-winding bearing portion 48 in the axial direction and comprises a brake disk 55 and, for example, a pulse disk 56 can.

The winding shafts 21; 21a; 21 b thus have seen in the axial direction of a first side, z. As the operating side of the machine, seen in a second embodiment according to a preferred embodiment in the order given: a guide portion 53 in a fixed position, a Vorwickel-bearing portion 47 in a fixed position, a support portion 52 preferably immediately adjacent the Vorwickel-bearing portion 47th In a fixed position, a first winding receiving bearing portion 37 in a fixed position, a second winding receiving bearing portion 38 in a variable position corresponding to the respective winding shaft type, d. H. according to the length of the take-up reel spool 12, a further support portion 52 in fixed position, another Vorwickel-bearing portion 48 preferably immediately adjacent to the support portion 52, and another functional portion 54 in a fixed position. Between the two bearing portions 37 and 38, a central winding coil clamping portion 57 is defined, in which the clamping elements not shown for fixing a winding spool 12 are arranged on the winding shaft 21.

Fig. 9 to 11 show the interaction of the guide portion 53 of the winding shaft 21, which, as explained, can be designed as a roller bearing 53, in particular as a deep groove ball bearing 53, with the machine-side guide devices 58; 59. Preferably, there is a guidance of the winding shaft 21 in the axial direction by means of the guide section 53 both in the pre-winder 22 and in the main winder 23. In the region of the pre-winder 22, the guide section 53 is guided in a guide groove 58 in the section 46 of the pivot arm 41 whose width is adjustable is executed so that the allowable bearing clearance can be adjusted or adjusted. In the region of the main winder 23, a guide rail 39 is provided, in which a guide groove 59 is also formed, the width of which is likewise designed to be adjustable for the purpose of adjusting the bearing clearance. In the in Fig. 10 illustrated transfer position of the pre-winder 23 is aligned with the guide groove 58 of the pre-winder 23 with the guide groove 59 of the Hauptwicklers 22nd

The guide device 53; 58; 59 for the winding shaft 21 thus comprises a winding shaft side guide portion 53, for example in the form of a deep groove ball bearing 53 and a machine-side linear guide 58; 59, which includes a pre-winder-side linear guide section 58 and a main-winding-side linear guide section 59, the linear guide 58; 59 in the form of a guide shoulder, a guide groove 58; 59 o. The like. Can be formed.

LIST OF REFERENCE NUMBERS

01

machine frame

02

Roller, inlet roller

03

Roller, guide roller

04

Roller, guide roller

05

-

06

Roller, measuring roller

07

Roller, draw roller

08

Roller, pendulum roller

09

Roller, winding roller

10

Brake disc (09)

11

Material web, substrate web, paper web

12

Winding spool, hard cardboard sleeve

13

reel

14

perforation

15

-

16

lowering

17

hydraulic device

18

swing arms

19

wave

20

press console

21

winding shaft

22

Vorwickeleinrichtung, Vorwickler

23

Winding device, Hauptwickler

24

carrier

25

-

26

carrier

27

In stock

28

In stock

29

support frame

30

-

31

support frame

32

Bearing, roller pair, spherical roller bearing pair, steady bearing

33

closing device

34

Arm, swivel arm

35

-

36

closing roller

37

Bearing section, winding receiving bearing section, raceway

38

Bearing section, winding receiving bearing section, raceway

39

guide rail

40

-

41

swivel arm

42

Axis (09)

43

Recess (41)

44

Stripper plate

45

-

46

Section (41)

47

Bearing section, pre-winding bearing section, roller bearings, ball bearings, deep groove ball bearings

48

Bearing section, pre-winding bearing section, roller bearings, ball bearings, deep groove ball bearings

49

linear guide

50

-

51

Roll (44)

52

support section

53

Guide section, roller bearings, ball bearings, deep groove ball bearings

54

function section

55

Brake Disc (54)

56

Impulse disc (54)

57

Winding reel tension section

58

Guide device, guide groove, linear guide, linear guide section

59

Guide device, guide groove, linear guide, linear guide section

60

guide rail

61

guide rail

63 - 100

-

101

winding shaft

102

Vorwickeleinrichtung, Vorwickler

103

Winding device, Hauptwickler

104

drive

105

-

106

swing arms

107

recess

108

Stripper plate

109

wave

110

-

111

swing arms

112

Sidewall portion

113

Sidewall portion

114

drive

115

-

116

recess

117

guide rail

118

brake disc

32 '

role

32 "

role

A

adjustment

a

Distance (27; 28)

21 a

winding shaft

21 b

winding shaft

Claims (11)

Apparatus for receiving a winding spool (12) having a wound-up material web (11) to form a roll (13), having a rotatably drivable winding roll (09) to which the winding spool (12) can be placed, the winding spool (12) resting on a winding spool (12) 21 b), wherein the winding shaft (21, 21 a, 21 b) of a winding receiving device (23) can be accommodated in which it is spaced variable with respect to the winding roller (09), and wherein the 21) is mounted in the area of the winding receiving device (23) on both sides on supports (27, 28), characterized in that the supports (27, 28) of the winding receiving device (23) each have a pair of rollers (32). of two roller bearings (32 ', 32 "). Apparatus according to claim 1, characterized in that in adaptation to a different length of the reel spool (12) corresponding to a different width of the respective web to be wound (11) measured in the axial direction of the winding shaft (21; 21 a; 21 b) distance (a) the two supports (27; 28) is designed to be mutually variable. Apparatus according to claim 1, characterized in that the supports (27; 28) of the winding receiving means (23) are designed as lunette bearings (32). Apparatus according to claim 1, characterized in that each support (27; 28) is formed as a steady rest bearing (32) each having a pair of rollers (32). Apparatus according to claim 4, characterized in that the steady rest bearing (32) has a spherical roller bearing pair (32) in steady rest shape. Device according to claim 1, characterized in that each support (27; 28) comprises a closing device (33) holding the winding shaft (21; 21a; 21b) in the operative position. Device according to claim 6, characterized in that the closing device (33) comprises a closing roller (36) rolling in the closed position on the winding shaft (21; 21a; 21b). Apparatus according to claim 7, characterized in that the closing roller (36) between an opening position in which a winding shaft (21; 21 a; 21 b) in the bearing (32) can be inserted, and a closed position in which the closing roller (36 ), the winding shaft (21; 21 a; 21 b) secures in functional position, is movable. Apparatus according to claim 8, characterized in that the closing roller (36) at one end of a pivot arm (34) is mounted. Apparatus according to claim 1, characterized in that the winding shaft (21; 21 a; 21 b) in the region of the supports (27; 28) are each fixed in a three-point bearing. Apparatus according to claim 10, characterized in that the three-point bearing has three roller bearings (32 ', 32 ": 36).

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