EP0855355B1 - Winding machine and method for the continuous winding of a web of material - Google Patents

Abstract

The machine has a reel-spool, which is held during winding start-up by a primary bearing (17), and during finish winding by a secondary bearing (27). The primary bearing is fastened stationary to the transporter (5) for the pressure application drum (19). A control/regulator (67,68) to influence the line force in the winding gap, acts with the pressure application unit (22) for the roller. There is a lifter (10) for the transporter. Primary and secondary bearing have an associated primary drive (33,32), pref. central drive, for the reel-spool (31). The primary drive is fastened to the transporter, which moves on a first guide (9) with rail (7).

Description

The machine relates to a winding machine for continuous Winding a material web, in particular Paper or board web, according to the generic term of claim 1 and a method for continuous Winding a material web, in particular Paper or board web, according to the preamble of the claim 17th

Winding machines and methods of the here mentioned Art are known from DE 196 07 349. The known winding machine comprises a means of a Pressing device displaceable pressure drum, the defined pressed against the circumference of a winding roll is formed and with this a winding nip. The pressure drum is at one on a guide arranged movable first transport device. The spool on which wound the winding roll will be during the Anwickelvorgangs of a primary storage rotatably held. These is opposite to the first transport device, on the pressure drum is arranged, with the aid of a additional second transport device translationally displaceable. The winding machine comprises furthermore a stationarily arranged secondary storage, the tambour during the finish wrapping process rotatably in a fixed position holds. In a Tambourwechsel is an empty drum introduced into the primary storage, the web separated and their free end on the wrapped up empty reel. During the Anwickelvorgangs, so during the spool of the primary storage is held, the growing Winding roll diameter by a displacement of the first transport device and the control of Line force in the winding nip between the pressure drum and the winding roll by a relative movement the pressure drum relative to the first transport device balanced or adjusted. After reaching a desired roll diameter The winding roll is in the secondary storage transferred and finished. The well-known Winding machine has a constructive relative complex and therefore expensive construction on, in particular by the primary bearing bearing second transport device for which an additional Control unit for controlling the displacement movement necessary is. It is difficult when transferring the winding roll to the secondary storage the movement of the two transport devices so synchronously to control that at the same time the line force control is able to to maintain the desired line power. Much more there is a risk of a sudden change in the Line force.

From DE 44 15 324 A1 (US 5,577,685) is a Wrapping machine protruding, the first, horizontal having movable transport device, at the a vertically movable second transport device is appropriate. One with a winding roll a winding gap forming pressure drum is rotatable arranged on the second transport device and can by means of a pressing relative to the second transport device back and forth be moved to the line force in the winding nip adjust. Furthermore, a third transport device provided for the transfer of a empty spool from a standby position serves in the deeper Anwickelposition. at a Tambourwechsel is the pressure drum first vertically up into a takeover position method, in which the pressure drum with a rotatably on the third transport device held empty tambour forms a winding nip. The material web is now separated and their free End wound up on the empty reel, which subsequently together with the pressure drum in the deeper lying Anwickelposition is transferred. For this purpose, the second and the third transport device move vertically downwards. While the Anwickelns and the transfer to the Anwickelposition becomes the new drum with the wound up on it, only a few winding layers have Winder driven by a prime mover. From the Anwickelposition is the winding roll moved horizontally into a ready-winding position, in which the prime mover uncoupled and a secondary drive is coupled to the winding roll, the during the further winding process, the winding roll drives. The winding machine has a relative elaborate construction on, in particular due the independently displaceable second and third transport facilities. Further, it has become proved that the control of the displacement movements the three transport facilities very is expensive.

The object of the invention is a Wikkelmaschine and to create a procedure that do not have these disadvantages. In particular, should a shift of the wound new spool in the stationary secondary storage feasible be that the desired height of the line force in the winding nip with the least possible effort during the said shift is maintained.

To solve this problem, a winding machine proposed that the features of claim 1 having. This is characterized by the fact that the Primary storage fixed to the transport device is arranged. In connection with the present Invention is called "stationary" storage understood, which rotates the drum and moves a translational displacement of the spool on prevents the transport device. The primary storage and the pressure drum is therefore a single, associated with common transport device, thereby on the one hand, the structural design of the winding machine and on the other hand simplifies their control can be.

Preferred is an embodiment of the winding machine, characterized by the fact that during the winding roll is held by the secondary storage and it is finished, by a relocation the pressure drum carrying the transport device by means of a lifting device of greater expectant winding roll diameter is compensated. At the same time by a relative movement of the Pressing drum relative to the transport device the line force in the winding nip controlled / regulated. For this purpose, a control / regulation is provided, the with the pressing device, by means of which the pressure drum is displaceable, cooperates. The Displacement of the pressure drum relative to the transport device So serves the setting of Pressure forces in the winding nip between the pressure drum and the winding roll. The pressure drum points heavier with increasing diameter expectant winding roll a much lower weight on, so that a quick compensation of im Winding gap occurring fluctuations and jumps the line force or line power curve is possible. This is the line force extremely sensitively adjustable, whereby a high Winding quality can be achieved.

The previously described controlling or regulating the line force starts immediately at the reel change and remains constantly effective not only during the piecing process, but also during the common Relocation of the wound spool in the Secondary storage (with the pressure drum on the common transport device easily mitwandert) and during the following finish winding process. The main advantage of the invention is So, in that, controlling the line force during the Anwickelvorganges and during the transfer of the wrapped spool into secondary storage in a simple and precise way alone by displacing the pressure drum by means of the pressing device takes place on the transport device. The automatic maintenance of the desired Line force during the above operations is thus easily possible without additional effort. Only during the Fertigwickelvorganges enough maximum stroke of the pressing device usually not out, now the larger winding roll diameter to follow. Then the (to move the transport device anyway necessary) above already mentioned lifting device effective to the Transport device (including the pressure drum, the pressing device and the now empty Primary storage) gradually from secondary storage pull away, according to the increase of the winding roll diameter.

In an advantageous embodiment of the winding machine is provided that the primary storage a Primary drive, preferably center drive, for the winding roll is assigned, by means of a defined torque on that of the primary bearing held tambour can be applied. The prime mover is preferably stationary, the means stationary, arranged on the transport device, whereby the construction of the winding machine continues can be simplified because additional management and transport equipment for the prime mover not needed. It is also possible, the prime mover on a separate transport device to arrange and the transfer of the Primary bearing rotatably held winding roll to the secondary storage parallel to the primary storage with relocate. It is important that on the drum torque throughout the winding process can be applied. This can - in cooperation with the control described above or Regulation of the line force in the winding nip - a Wikkelrolle with a defined, preferably uniform winding hardness profile are produced.

Further advantageous embodiments will be apparent from the remaining subclaims.

To solve the above problem is also a method for continuous winding of a material web proposed, that mentioned in claim 17 Features. This is characterized by from that the web initially over a Peripheral region of a pressure drum is performed, which forms a winding nip with a winding roll. To prepare for a reel change will be free pull of the material web between the pressure drum and the almost finished winding roll formed and an empty drum in the area of the introduced free train in a Anwickelposition. Then a winding nip between the pressure drum and the empty drum through a shift the pressure drum opposite a the pressure drum and the spool carrying transport device formed. Subsequently, the material web is separated and their free end on the empty drum wound. Here is the winding roll in its Anwickelposition, where immediately a control / regulation the line force in the winding nip begins. For this purpose, the pressure drum is defined relative shifted to the transport device. After reaching a desired roll diameter, in a preferred embodiment, only a little larger than the diameter of the spool, will the winding roll is transferred to a ready-winding position, in the winding roll during the finish winding process held stationary rotatably is. During the transfer is called Control / regulation of line force continuously continued. Even while now the winding roll in is located in their ready-winding position, the line force in the winding nip still by a relative movement the pressure drum relative to the pressure drum controlled transport device controlled / regulated. Preferably, the increasing becomes Wickelrollendurchmesser simultaneously by a relative movement the transport device opposite a base, for example, a foundation on which the winding machine stands, balanced. By the The method described above may be a desired one Hardness of the winding roll and thus a very good Wikkelqualität evenly over the entire winding process be achieved. It is also advantageous that by the displacement of the pressure drum on the common transport device for control / regulation the line force in the winding nip of increasing winding roll diameter during the entire Anwickelvorganges including the transfer balanced in the ready-winding position becomes. The effort to control the relocation movements of pressure drum, winding roll and transport device during the entire winding process is therefore relatively low.

Further advantageous embodiments will be apparent from the remaining subclaims.

Figuren 1 bis 3

jeweils eine Prinzipskizze eines Ausführungsbeispiels einer Wickelmaschine in verschiedenen Wickelphasen;

Figur 4

eine schematische Draufsicht auf die Wickelmaschine gemäß dem Figuren 1 bis 3 und

Figuren 5 und 6

je eine schematische Prinzipskizze eines weiteren Ausführungsbeispiels der Wickelmaschine.

The invention will be explained in more detail below with reference to the drawing. Show it:

FIGS. 1 to 3

in each case a schematic diagram of an embodiment of a winding machine in different winding phases;

FIG. 4

a schematic plan view of the winding machine according to the figures 1 to 3 and

FIGS. 5 and 6

each a schematic diagram of another embodiment of the winding machine.

The winding machine described below is generally used for winding a web. The winding machine can be at the end of a machine for producing or refining a material web, for example, a paper web arranged be to the finished web to a Wind up winding roll. The winding machine can but also used to make an already finished, Also referred to as a winding roll Roll over the roll.

Figures 1 to 3 each show a side view an embodiment of a winding machine 1, for winding a material web 3, for example, a paper web, on a spool serves. This can for example by a tubular Roller are formed. From the figures 1 to 3 is a sequence of functional steps of Winding machine 1 forth.

The winding machine 1 also includes a carriage designated transport device 5, which on a Guide rails 7 comprehensive first guide. 9 is movable. In the side view of Figures 1 to 3, only one of the guide rails 7 can be seen. The guide rails 7 are at one on a foundation 11 standing winding frame 13 is attached and parallel to an imaginary, dashed line aligned horizontal H aligned. To the procedure the transport device 5 on the first Guide 9 is shown only in FIG Lifting device 10 is provided by means of which the transport device 5 in the horizontal direction (Double arrow 15) is displaceable. The on the winding frame 13 attached lifting device 10 is here from formed a spindle drive, one of a Motor 12 driven threaded spindle 14 includes. When Lifting device, for example, a hydraulic piston / cylinder unit used become.

On the transport device 5 is a merely schematically illustrated primary storage 17 stationary arranged to hold or the rotatable recording of a spool during the Anwickelvorgangs serves. The primary bearing 17 has So a fixed, unchanging position on the Transport device 5 on. With "wrapping process" is the phase of the winding process, in a tambour from the primary storage 17 held becomes.

Furthermore, one is also referred to as a support roller Anpreßtrommel 19 provided on a Guide carriage 20 is held rotatably, the comprehensive on a rail 21 second guide 23 is movable. From the rails 21 is in This illustration only one recognizable. The Rails 21 are attached to the transport device 5 and preferably run parallel, at least but essentially parallel to the guide rails 7 of the first guide 9. The guide carriage 20 is by means of a on the transport device 5 attached pressing device 22 the rails 21 movable (double arrow 25). The Pressing device 22 is here as -vorzugsweise preferred hydraulic piston / cylinder unit formed, which comprises a piston guided in a cylinder. On the piston a piston rod is attached, at the other end with the guide carriage 20 and the attached thereto Storage of the pressure drum 19 is connected. The Design of the pressing device 22 is basically variable, that is, in another Embodiment, the pressing device 22nd formed for example by a spindle drive become. The pressure drum 19 can of a in the Figures 1 to 3 not shown center drive driven, that is with an adjustable drive torque be stationary, the stationary the transport device 5 is arranged.

The winding machine 1 further comprises a stationary arranged secondary storage 27, which at the Winding frame 13 is attached. The secondary storage 27 is used for rotatably holding and guiding a bearing pin 28 having spool during the finish wrapping process. In the illustrated in Figure 1 Winding phase is on one of the secondary storage 27 kept the tambour 29 continuously tapered material web 3 to a winding roll 31 wound up. With "finish-winding process" is called the part of the winding process, at the reel held by the secondary storage 27 becomes. The secondary storage 27 is a with associated with a symbol indicated secondary drive 32, the held by the secondary storage 27 Drum drives. The as center drive trained secondary drive 32 is on the winding frame 13 attached and therefore points within the Winding machine 1 a fixed position.

Furthermore, the primary storage 17 is a mere with a symbol indicated primary drive 33 assigned to the respective, from the primary storage 17 held drum with a defined Torque applied. In the in the figures 1 to 3 illustrated embodiment of the winding machine 1, the prime mover 33 is stationary arranged the transport device 5, so that at a displacement of the transport device 5 of Primary drive 33 moved together with this becomes. So there is no additional guidance for the primary drive 33 required, whereby the structure the winding machine and its control simplified can be. In another embodiment provided that the primary drive 33 parallel to the rails 21 of the second guide 23 displaced is independent of the displacement movement the transport device 5.

As can be seen from FIG. 1, the material web becomes 3 of the winding machine 1 in the direction of the Material web 3 (arrow 34) seen upstream Manufacturing or processing machine first passed over a stationary guide roller 35 and of this to one on the transport device 5 rotatably mounted deflection roller 37 out. From this is the material web 3 via a below arranged the pressure drum 19, shown in phantom third deflection roller 39 on the pressure drum 19 led. The deflection roller 39 is preferably designed as a spreader roll. The material web 3 is over a peripheral region of the pressure drum 19 guided by about 180 ° and on the of the secondary storage 27 held winding roll 31st wound. The pressure drum 19 is provided with a defined force on the circumference of the winding roll 31st pressed, so that a winding nip is formed, through which the material web 3 is guided. The too referred to as clamping pressure or force Line force in the winding nip is caused by a shift the pressure drum 19 on the second guide 23 controlled in the direction of the double arrow 25. at another embodiment of the winding machine is provided that the line force in Wikkelspalt is regulated, that is, the line force is automatically activated by means of a regulation desired value. In both cases will For this purpose, the pressing device 22, with the the Compressing drum 19 supporting guide carriage 20 cooperates, defined influenced. exemplary in Figure 1, a measuring device 67 and a Control unit 68 schematically indicated. By the displacement of the pressure drum 19 can compensate for fluctuations in line power or avoided, so that continuously a desired winding hardness can be achieved can. The increasing diameter of the winding roll 31 is-while the winding roller 31 of the Secondary storage 27 is held by a shift the transport device 5 and thus the Clamping drum 19 against the web running direction (Arrow 34), that is to say in the case of FIGS. 1 to 3 illustrated embodiment to the right, balanced.

Below the held by the secondary storage 27 Winder 31 is a over the entire Width of the winding roll 31 extending, also as Pressure roller designated squeezing roller 41 arranged the means of a guide device, not shown relocatable and to the extent of with the pressure drum 19 forming a winding nip Winder 31 can be pressed. The squeegee roller 41 serves to entrainment of Air between the winding layers of the winding roll 31 to prevent, for example, if the web 3 is conducted in a free train. The pressure, with the squeegee 41 to the periphery the winding roll 31 is pressed is adjustable. The squeeze roller 41 can be driven by a drive, for example, a center drive, driven be, preferably before and during the nip roll 41 to the circumference of the secondary storage 27 held winding roll 31 pressed becomes.

In the following, the function of the winding machine 1 be explained in more detail by means of a winding process: The material web 3 is on the pressure drum 19th guided and held on the of the secondary storage 27 Winder 31 wound (Figure 1). Before the winding roll 31 its end / target diameter reaches, the squeeze roller 41 to the periphery the winding roll 31 pressed (Figure 2). The material web 3 is characterized both by the winding nip between the pressure drum 19 and winding roller 31 as also through the winding nip between nip roll 41 and winding roll 31 out. To the transfer of continuous material web 3 on one above the pressure drum 19 in a standby position arranged empty reel 43 (Figure 1), the Clamping drum 19 by means of the transport device 5 along the rails 21 of the second guide 23 against the running direction of the material web 3 (arrow 34) - preferably in rapid traverse - moved to the right. As a result, the distance between the pressure drum 19 and the winding roll 31 increases and a gap 45 formed (Figure 2). The material web 3 is in the area of the gap 45 in a free train from the pressure drum 19 on the Winder 31 transferred. During the reel change is the squeegee 41 with a defined Force pressed against the circumference of the winding roll 31. So on the one hand a lugging of air between prevents the winding layers of the winding roll 31. On the other hand, an exact hardness of the the winding roll 31 wound wound layers guaranteed become.

Then, from above, the empty reel 43 in the gap 45 between the pressure drum 19th and the winding roll 31 introduced. Before entering of the spool 43 in the outdoor train Material web 3, this is by means of a not shown Launching device on running speed the material web 3 accelerates. By the Retracting the empty spool 43 in the free Web train is the material web 3 deflected and over a peripheral region of the main cylinder 43 out. Of the Tambour 43 will be placed directly in a takeover position arranged primary storage 17 introduced and held by this rotatably (FIG 2). Then the empty reel 43 with the primary drive 33 rotatably connected and by a shift the pressure drum 19 a nip or a winding gap between this and the empty drum 43 formed. Subsequently, the material web 3 of a known-not shown- Separating device, for example high-pressure blowing device, separated and their free End wound up on the empty spool 43. While the spool 43 is held by the primary bearing 17 becomes larger diameter the wound on the spool 43 winding roll 47 (Figure 3) and the line force in the winding nip between this and the pressure drum 19 by a Displacement of the pressure drum 19 balanced or controlled / regulated. In other words, by controlling the line force, to set this to a desired value, by a defined displacement of the pressure drum 19 relative to the stationary on the transport device 5 arranged primary storage 17 is automatic also the larger winding roll diameter balanced.

As can be seen from Figure 3, the transport device 5 for transferring the winding roll 47 of the Anwickelposition in the ready-winding position, So to the secondary storage 27, in the web running direction (Arrow 34). In that shown in Figure 3 Functional position of the winding machine is the winding roll 47 from the primary storage 17 to the Transfer secondary storage 27. The secondary drive 32 is now using the Tambour 43, on which the winding roll 47 is wound, coupled, so that briefly both drives 32 and 33 effective with the Tambour 43 are connected. Finally, the the Primary bearing 17 associated primary drive 33 from Tambour 43 solved and can in his takeover position be moved (Figure 1).

The duration of the Anwickelvorgangs, so how long a wound roll guided by the primary storage 17 is, is variable and can be very, for example be short, so that the winding roll only a relative having a small diameter increase. This can the maximum stroke of the piston of the pressing device 22 be kept small. In a preferred Embodiment is the maximum stroke of the piston less than half the material layer thickness a finished winding roll. Preferably located the transport device 5 during the Inserting an empty spool into the primary storage and an adjustable period of time after that free end of the web on the empty spool has been wound up, at a standstill.

From the description of Figures 1 to 3 results the above-mentioned method easily. It is that in preparation for a Tambourwechsel first a free train of material web between the pressure drum and the almost full winding roll is formed, in its area an empty spool moved into a Anwickelposition becomes. By a relative movement of the pressure drum opposite to a drum carrying Transport device will add this to the scope of the pressed on empty spool, creating a winding nip is formed. Subsequently, the material web separated and their free end on the empty drum wound. The balance of the growing Wickelrollendurchmessers is here, so while the drum is in the Anwickelposition located by controlling the line force realized in the winding nip. For this purpose, the pressure drum relocated. The winding roll is now from the Anwickelposition transferred to the ready-winding position and finished here. During these operations becomes the control of the line force in the winding nip by a relative movement of the pressure drum opposite to the pressure drum bearing Transport device continuously continued. The larger winding roll diameter the winding roll in the ready-winding position is now preferably additionally by a Relative movement of the transport device opposite a base, in which in the figures 1 to 3 shown Embodiment of the foundation 11, balanced. Thus, the maximum piston stroke of the Pressing device 22, as already mentioned above, relatively kept small.

FIG. 4 schematically shows a top view of the Wrapping machine described with reference to Figures 1 to 3 1. Identical parts are given the same reference numerals so far as to the description refer to the preceding figures. The illustrated in Figure 4 functional position of Winding machine 1 corresponds to that shown in Figure 2 Functional position. The winding frame 13 has an outer part 13/1 and an inner one Part 13/2. On the outer part 13/1 of the Winding frame 13, the guide rails 7 of first guide 9 attached.

On the drive side of the winding machine 1 is a with the pressure drum 19 cooperating center drive 48 arranged, by means of which the rotatably mounted pressure drum 19 with a torque can be acted upon. The center drive 48 is on a fixed to the transport device 5 Console 49 mounted and includes a motor 51 and a propeller shaft 53, with a journal of the Clamping drum 19 is operatively connected. By the Propeller shaft 53, it is possible that the pressure drum 19 on the guide rails 7 relative to the Transport device 5 and thus the stationary arranged motor 51 perform a relative movement can, without the drive train interrupted, that is the propeller shaft 53 of the pressure drum or the engine must be disconnected. The pressure drum 19 is thus permanent with a torque acted upon. Furthermore, on the guide page the winding machine 1 to the transport device 5 a console 55 is mounted on the Primary drive 33 of the primary bearing 17 is arranged is. The prime mover 33 includes a motor 57, the as indicated by a double arrow 59 with the guided by the primary bearing 17 Tambour 43 is detachable. As can be seen from Figure 4, is on the drive side of the winding machine 1 at the outer Part 13/1 of the winding frame 13 a console 61 attached, arranged on the secondary drive 32 is. This includes a motor 63, which -as with a Double arrow 65 indicated - with that of the secondary storage 27 held Tambour 29 detachable is.

Due to the arrangement of the prime mover 33 and the Secondary drive 32 on opposite sides the winding machine 1, namely on the leader's side or drive side, a tambour can during the entire winding process with a torque to be acted upon, which is explained below the transfer of the spool 43 from the Anwickelin the finished winding position is explained in more detail.

Before the guided from the primary storage 17 drum 43 is transferred to the ready-winding position, is the secondary drive 32 of the spool 29, on the finished winding roll 31 is wound up, separated. The winding roll 31 is from the secondary storage 27 applied so that of the primary storage 17 and held by the primary drive 33 driven drum 43 can be recorded. This is due to a displacement of the transport device 5 in the direction of arrow 34 from the in Figure 4 Anwickelposition shown in the ready-winding position transferred. Then there is a transfer of the spool 43 from the primary storage 17 the secondary storage 27 instead. Now the secondary drive 32 coupled with the spool 43. Thereby results in the functional position shown in Figure 3 the winding machine 1, in which both the Primary drive 33 and the secondary drive 32nd simultaneously coupled with the Tambour 43, the means connected effectively. After the secondary drive 32 the drive function for the drum 43 has taken over, the primary drive 33 of the Tambour 43 uncoupled and by proceeding the Transport device 5 relocated to the transfer position, in an empty tambour of the Primary storage 17 can be adopted.

Figures 5 and 6 show schematically a side view a further embodiment of the Wikkelmaschine 1. Parts with those in previous ones Figures match, are the same Numeral provided so that the description to the figures 1 to 4 can be referenced. in the The following should only be closer to the differences To be received.

The material web 3 is from one of the winding machine 1 upstream processing station for the Material web to a deflection roller 39 'out and from this vertically upwards to a pressure drum 19 ', with one in Anwickelposition located Winder 47 forms a winding nip. The preceding finished winding roll 31 (with spool 29) is in Figure 5 just from the winding machine away. The pressure drum 19 'is in the in FIG 5 illustrated embodiment of a Press roll formed, which is a relatively small Outside diameter has. This one is clear smaller than the outer diameter of the in the figures 1 to 4 shown pressure drum 19. Preferably is also the weight of the pressure drum 19 ' less than that of the pressure drum 19.

On the guide carriage 20 is a displacement device 70 arranged, the one on the guide carriage 20 has fixed guide frame 72, that for guiding a vertical slide 74th in the direction of a double arrow 76 is used. The pressure drum 19 'is rotatably mounted on the vertical carriage 74 held and by means of a not shown Center driven, preferably fixedly mounted on the vertical slide 74 is. In a method of vertical carriage 74 vertically down, the distance between the pressure drum 19 'and the stationary on the guide frame 72 arranged deflection roller 39 'reduced, which will be discussed in more detail. The vertical one Displacement of the pressure drum 19 'is preferably relatively small and corresponds in particular one to two times the diameter of the pressure drum 19 '.

In the following, the function of the in Figs. 5 and 6 illustrated winding machine 1 based on a Tambourwechsel described in more detail. First, will between the pressure drum 19 'and one of the Secondary storage 27 held roll a gap formed in which the material web in one free train is performed. This is the transport device 5 to the right in the in Figure 5 moved position shown. Then the pressure drum 19 'by lowering the vertical slide 74 moved to a lower position, so that when introducing a blank Tambours 43 in the Anwickelposition this in the Primary storage 17 can be discontinued without in a free train from the pressure drum 19 ' almost finished, held by the secondary storage 27 Winder 31 guided material web 3 is deflected, see Figure 6. That is, the empty reel 43 can during the current winding process be transferred to the primary storage 17, without being set in rotation before; because he does not come in contact with the running web. Only shortly before a reel change is the new spool from the prime mover 33 at web speed accelerated. Subsequently, the Clamping drum 19 'vertically displaced upwards, whereby the material web 3 at a peripheral region created the empty tambour and led over this becomes. Then a nip between the pressure drum 19 'and empty drum through a horizontal Displacement of the pressure drum 19 'formed, the web 3 separated and their free end on the wrapped up empty reel. During the Anwickelvorganges (Figure 5), the winding roller 31 is braked and then removed. Then the transport device moves 5 in Figure 5 to the left and passes The wound new Tambour 43/47 to the Secondary storage 27; this condition corresponds to FIG. 3.

In another embodiment, not shown is provided that the nip or Winding gap between pressure drum 19 ' and empty drum already at the vertical displacement the pressure drum 19 'is formed.

By the vertically displaceable pressure drum 19 ' can be applied to a launching device, as in the case of The winding machine shown in Figures 1 to 4 is needed, be waived. The empty drum becomes in the embodiment shown in Figure 5 and 6 by means of (preferably fixed to the transport device 5 arranged) primary drive 33 on running speed of the material web accelerated and from this even after the reel change driven for a while. First after the transfer of the wound drum in the secondary storage is the secondary drive 32nd activated and the primary drive 33 solved.

It remains to be noted that the empty drum of the ready position to the winding level can be lowered and only here on web speed is accelerated. This will only two drives, preferably center drives, for the tambour needed to be on this throughout Winding process a drive and / or braking torque applied. Because the center drive for the empty drum not vertically, but only horizontally needing to process is at a preferred Embodiment provided that only one of the two center drives one Tambour assigned during the entire winding process is, whereby the winding quality is increased. For this purpose, therefore, the primary drive 33 and the secondary drive 32 -independent of each other and of the transport device 5 horizontally displaceable be.

It becomes clear that by the vertical movability the pressure drum 19 'also on a per se Known depressing device can be dispensed with can, which is the guided in a free train material web deflects, so that the empty drum in the Primary storage can be retracted without first be accelerated to web speed have to.

As can be seen from Figure 6, in this embodiment the winding machine 1 of the secondary storage 27 associated with a winding support 78, the held by the secondary storage 27 winding roll supported outside over a peripheral area, that is relieved, so that it does not bend or whose deflection is small. The Wikkelstütze arranged below the secondary storage 27 78, for example, two pulleys and at least one circulating, guided over it Have band. The structure of the winding support 78 is variable. There are therefore other constructions the winding support possible. By supporting the reel while in the ready-winding position can, the winding quality be improved.

All embodiments described with reference to Figures 1 to 6 is common that the squeegee 41 to the circumference of the secondary storage guided winding roll not only during a Tambourwechsel can be pressed, but basically throughout the period in which the Tambour or the wound up on it Winding roller guided by the secondary storage and is held. This can improve winding quality become.

In a preferred embodiment, it is provided that the pressure drum 19 in their bearings Having measuring sensors 67 for the bearing forces, wherein in dependence of the measuring signals of the Measuring sensors by means of a control or regulating device 68 the contact pressure is regulated with the the pressure drum 19 to the periphery of an empty Tambours 29 or 43 and then to the wound thereon winding roll 31 or 47 pressed becomes.

In summary, it should be noted that by the stationary arrangement of the primary storage at the Transport device, the structure of the winding machine simplified compared to the known winding machine can be. Furthermore, the winding machine is relative low effort safely controllable / regulated.

Claims (21)

1. Winder (1) for the continuous winding of a material web, especially paper or board web, while forming a wound reel on a spool, having a contact pressure drum (19; 19'), which is rotatably arranged on a displaceable transport device (5), is displaceable with respect to the transport device by means of a pressure-applying device (22) and forms a winding nip with the wound reel, having a primary bearing (17) that holds the spool during the winding start process, and having a secondary bearing (27) that is arranged in a stationary fashion and holds the spool during the final winding process, characterized in that the primary bearing (17) is arranged in a fixed location on the transport device (5).
2. Winder according to Claim 1, characterized by a controller/regulator (67, 68), which interacts with the pressure-applying device (22), to influence the line force in the winding nip.
3. Winder according to one of the preceding claims, characterized by a thrust device (10) for displacing the transport device (5).
4. Winder according to one of the preceding claims, characterized in that the primary bearing (17) is assigned a primary drive (33), preferably a centre drive, for the wound reel (31).
5. Winder according to Claim 4, characterized in that the primary drive (33) is arranged in a fixed location on the transport device (5).
6. Winder according to one of the preceding claims, characterized in that the secondary bearing (27) is assigned a secondary drive (32), preferably a centre drive, for the wound reel (31).
7. Winder according to one of the preceding claims, characterized in that the transport device (5) can be moved on a first guide (9) comprising guide rails (7).
8. Winder according to Claim 7, characterized in that the guide rails (7) are arranged parallel or substantially parallel to an imaginary horizontal (H).
9. Winder according to one of the preceding claims,
   characterized in that the contact pressure drum (19; 19') is rotatably held on a guide carriage (20), which can be moved by means of the pressure-applying device (22) on a guide (23) comprising rails (21).
10. Winder according to Claim 8, characterized in that the pressure-applying device (22) is constructed as a - preferably hydraulic - piston/cylinder unit, the maximum stroke of the piston being less than half the material layer thickness of a finished wound reel.
11. Winder according to one of the preceding claims, characterized in that the rails (21) of the second guide (23) are arranged parallel or substantially parallel to the guide rails (7) of the first guide (9).
12. Winder according to one of the preceding claims, characterized in that the rails (21) of the second guide (23) are fitted to the transport device (5).
13. Winder according to one of the preceding claims, characterized in that the contact pressure drum (19) can be moved exclusively along the guides (9, 23), that is to say essentially horizontally (Figures 1 to 3).
14. Winder according to one of the preceding claims, characterized in that the contact pressure drum (19') can be moved vertically or substantially vertically by means of a displacement device (70) arranged on the guide carriage (20) (Figures 5, 6).
15. Winder according to one of the preceding claims, characterized in that the contact pressure drum (19; 19') can have a torque applied to it by means of a drive (48), preferably a centre drive.
16. Winder according to one of the preceding claims, characterized by a pinch roll (41) that can be pressed against the circumference of the wound reel (31) .
17. Method for winding a continuous material web, especially paper or board web, onto a spool to form a wound reel, having the following steps:

    guiding the material web over a circumferential region of a contact pressure drum, which forms a winding nip with the wound reel,

    forming a free draw of the material web between the contact pressure drum and the almost finished wound reel,

    introducing an empty spool into the region of the free draw, into a winding start position,

    forming a winding nip between the contact pressure drum and the empty spool by means of a relative movement of the contact pressure drum with respect to a transport device carrying the contact pressure drum and the spool,

    severing the material web,

    winding the free end of the material web onto the empty spool,

    controlling/regulating the line force in the winding nip and thereby compensating for the increasing wound reel diameter by means of displacing the contact pressure drum in relation to the transport device carrying it,

    transferring the wound reel into a final winding position as the winding process proceeds, and finishing winding, both with continued control/regulation of the line force in the winding nip.
18. Method according to Claim 17, characterized by compensating for the increasing wound reel diameter by displacing the transport device.
19. Method according to Claim 17, characterized in that, at least while the material web is being guided in a free draw, a winding nip is formed between the wound reel and a pinch roll.
20. Method according to one of Claims 17 to 19, characterized in that, when it is being introduced into the winding start position, the empty spool deflects the material web, which is being guided in a free draw, so that said web is guided over a circumferential region of the spool.
21. Method according to one of Claims 17 to 20, characterized in that, before or during the introduction of the empty spool into the winding start position, the contact pressure drum is lowered to such an extent that the material web is also guided in a free draw from the contact pressure drum to the almost finished wound reel when the spool has assumed the winding start position.

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