DE29513526U1 - Device for automatic tube feeding in roll cutting machines of the backup roller type - Google Patents

Description

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,OSSELDORP BSSBN

EUROPEAN PATENT ATTORNEYS

OUR SIGN: 94 301 Düsseldorf, 30 November 1995

Beloit Technologies Inc.,

Suites 3001

3513 Concord Pike

Wilmington, Delaware 19803

USA

Device for automatic core feeding in roll cutting machines of the support roller type

The invention relates to a roll cutting machine of the support roller type according to the generic features of claim 1.

In the case of roll cutting machines of the support roller type, the winding devices are often so-called centre winders, in which the winding cores for receiving the ends of the partial webs to be wound up are driven in the winding direction. These well-known roll cutting machines deliver good winding results and have been used in industry for many years. The production capacity of these machines is severely limited by the time and effort required to change the rolls/winding cores. This procedure takes between 5 and 8 minutes and requires up to four

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to five workers. The average cutting and wrapping time is about 12 minutes. This means that the machine is not producing for 30 to 40% of the time.

For both roll cutting machines with one support roller and those with two support rollers, where the web is fed into the winding stations from below, it is known to feed the winding tubes in an automated manner from above the support roller(s). For this purpose, according to DE 38 00 702 A1, a feed bar is to be provided for each of the two winding stations arranged to the side of the support roller(s). This feed bar extends over the entire width of the machine, which can be 8 to 10 meters, and is supported by swivel arms on the machine side. Both feed bars each have a groove for receiving the winding tubes. When the two feed bars are swiveled towards each other and are close to each other, the two grooves are so close to each other that only one winding tube can fit in each length section of the feed bar. This means that the winding cores, which have already been cut to length, can be placed alternately from one end of the feed bar onto the channel of one or the other feed bar and pushed in their entirety along the two channels into the receiving positions corresponding to the positions of the winding device by means of a slider. The distribution of the winding cores between the two channels belonging to each of the winding stations is therefore already carried out when they are pushed onto the channels. In this case, a functionally reliable distribution is difficult. In order to equip the individual winding devices with new winding cores, the feed bars must be swiveled on an arc in the direction of the pairs of support arms of the winding devices. During this swiveling process, the winding cores roll in the channel that receives them from a first to a second stable position, where they are prevented from rolling out of the channel by a stopper that can be swiveled. The stoppers are attached to the

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Feed beams are pivotally mounted so that the stopper plates located in the area of the support arms of the winding devices can move away from the support arms. This known feeding device has three main disadvantages: Firstly, there is a risk that when the winding cores roll from one stable position to another, the momentum (impulse) of the rolling winding cores will become so great that the stopper plates with rounded surfaces cannot stop this rolling movement. This risk is particularly present with winding cores with a relatively large diameter and/or relatively large weight. Secondly, adjusting the winding cores in relation to the tensioning heads of the winding devices is particularly complex if the winding core diameter is to be changed and/or cores of different diameters are to be wound during a single winding process. Finally, it is difficult to move the winding cores on different channels exactly into their receiving position.

A simpler winding tube feeder has been proposed in DE 37 37 503 A1 for a roll cutting machine with two support rollers. In this machine, all the winding tubes required for a winding process are pushed onto a single channel. The distribution of the winding tubes to the sides corresponding to the two winding stations only takes place when the winding tubes are in their receiving positions corresponding to the winding devices. The distribution takes place by folding the channel downwards and transferring the winding tubes to gripping arms attached to each other, which pull the winding tubes to the correct side and place them on an inclined plane that leads to the clamping position of the corresponding winding tube. This known winding tube feeder also requires a stopper that prevents the winding tube from rolling further and stops it exactly in the clamping position. This known winding tube feeder requires a relatively large number of moving parts. In addition, the adjustment effort is high when

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The partial web widths and/or the winding core diameters change significantly. Finally, the gripper arms must be readjusted independently, i.e. separately from the winding devices, when the partial web widths change. For this purpose, a box girder with lateral guide rails and slides that can be moved along them must be provided.

A roll cutting machine in which the winding core feed is from below and the web feed into the winding stations is from above, and the downtime caused by the winding core feed is reduced, is known from US Pat. No. 5,356,087.

In this roll cutting machine, the winding cores required for a winding process, which are again located in a single channel, are transferred to winding core receiving elements by pivoting the channel around its longitudinal axis. The winding core receiving elements are equipped with double-armed position holding elements, which ensure that the winding cores are positioned precisely in the receiving elements. The transport devices can be moved in a straight line into the clamping positions using lifting and lowering elements.

The disadvantage of this device is that a large number of lifting and lowering devices are required. Relatively short winding cores, whose length is smaller than the length of two adjacent clamping heads, require special pre-adjustment in the channel.

The invention is based on the object of creating a device by means of which the automatic winding tube feed to the winding devices is further simplified.

The invention according to claim 1 achieves, among other things, that

- only two core support beams are required to support all the winding devices of the

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supplying front and rear winding stations with winding cores, whereby no separate device is required to transfer the winding cores from a central feed device to the core support beams;

- there is always only one winding core in the groove of the

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Feed unit located in a predeterminable,

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any position to the desired sleeve support beam

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can be provided so that winding cores can be attached to the two core supports

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beams can also be transported to the tensioning devices in "overlapping positions", which is particularly advantageous for short winding cores for narrow partial webs

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Sleeves of different diameters can be transported to the clamping devices without _the need for adjustment by moving the clamping devices

requirement.

The transport devices according to the invention can be used both in roll cutting machines with a single support roller and in roll cutting machines with two support rollers; the partial webs can also be fed to the support rollers from below as well as from above, since the lifting or lowering movement with which the core support beams move from their feed position, in which the winding cores are fed to the receiving elements of the core support beams, to the transfer position, in which the winding cores are transferred to the tensioning devices of the winding devices, does not have to be vertical, but can also be carried out at an angle or in a curve, i.e. with a clear horizontal component. This is regularly necessary when the winding cores are fed in a position above one or both support rollers, i.e. the partial webs are then usually fed to the support roller(s) from below. In these cases, the winding cores must be removed from the

Transport devices are lowered from their receiving position into the tensioning position. If, however, as is preferred, the feed device for the winding cores is arranged below the, preferably only one, or below the two support rollers, the winding cores are lifted by the transport devices from the receiving position into the tensioning position and the horizontal components of the transport movement can be kept small. Both measures (lifting and small angle of inclination) are advantageous for a quiet and secure position of the winding cores in the receiving elements on the transport devices.

A preferred embodiment of the means for forming the channel is the subject of claims 3 and 4. A winding tube located in the channel rests on the upper edges of the two legs, the distance between which is of course chosen so that even the winding tubes of the smallest diameter to be transported do not fit between the edges. A winding tube located in the channel can now be delivered to the receiving elements of one of the two tube support beams by slightly shifting the tube support beams vertically against each other or by raising or lowering one of the two tube support beams. The winding tube then "rolls" down over its edge, which is lower relative to the other, onto the receiving elements of this tube support beam and can then be transported into the clamping position by lowering or, preferably - if the feed device is located below the support roller - raising this tube support beam.

If the core support beams are pivoted from the delivery position during the lifting movement required to deliver a winding core from the trough to a core beam in such a way that the legs forming the trough move towards each other, a shorter stroke of a core support beam is required to transfer a winding core from the trough to the receiving elements of a core support beam; the transfer can therefore be carried out particularly quickly.

take place.

The sleeve support beams can be raised or lowered particularly precisely in the desired paths if, according to claim 6, running wheels are provided on their front sides which engage in slotted guides.

Spindle drives have proven to be particularly advantageous in conjunction with the sliding guides to generate the lifting and lowering movement of the core support beams. These enable particularly precise control of the movements of the core support beams, which is particularly advantageous for transferring the winding cores from the trough to the receiving devices.

For storage and precise reception of the winding cores transferred to the receiving elements of the core support beams during transport to the clamping position, it is also advantageous to provide tilt levers on the receiving elements.

A particularly safe transport and safe transfer of the winding tubes to the tensioning devices of the winding devices is provided if, according to claim 10, adjacent rocker arms of the receiving elements of a tube support beam are spaced apart from one another by less than half the length of the shortest winding tube to be transported. This measure ensures that these winding tubes - regardless of their position relative to the rocker arms - are supported by at least two rocker arms.

A particularly advantageous design of the receiving elements is the subject of claim 11. Each rocker arm is mounted on a spring-loaded, lockable swivel arm in such a way that when the rocker arm is loaded with a winding tube, the swivel arm is unlocked, for example, by its own swiveling caused by the weight of the winding tube. The swivel arm, which is itself pivotably connected to the tube support beam about an axis running parallel to the longitudinal axis of the latter, is designed in such a way that it

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When the transfer position is reached, the preferably single support roller is tilted outwards. The corresponding winding tube is thus brought into a more external position, in which the tensioning process is carried out by the corresponding devices of a winding device. By "swinging outwards" the winding tube with the help of the swivel arms, the lifting movement of the tube support beams can take place essentially vertically, which ensures safe transport of the winding tubes. Furthermore, the transport device is very narrow, which is also a considerable advantage.

Since only the unlocked swivel arms, whose tilt levers are loaded with a winding core, tilt into the clamping position, the front ends of the winding cores are always freely accessible in the clamping position and the clamping devices, which usually comprise clamping heads engaging in the winding cores, can easily accommodate the winding cores.

The "outward pivoting" of the winding cores is based on the basic idea of a core transverse conveyance with respect to the lifting/lowering plane of the core support beam, as set out in claim 7, and advantageously avoids a collision of the pivoting roller support arms with the core support beam.

Advantageously, a transverse

A separating device for the partial webs of goods can be provided, which can be activated in the transfer position of the sleeve support beam and separates the partial webs transversely from one side - in the preferred embodiment according to claim 2 from the underside (claim 11).

If, according to claim 12, a separate transverse cutting device is provided for the transverse cutting of the partial webs assigned to the front winding station in relation to the feed device of the web of material, which is connected from the other side - in the preferred embodiment from the

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Top side - can be moved to these partial webs, the cross-separation of all partial webs can take place synchronously.

The aforementioned components to be used according to the invention, as well as those claimed and described in the exemplary embodiment, are not subject to any special exceptional conditions in terms of their size, shape, choice of material and technical concepts or process conditions, so that the selection criteria known in the respective field of application can be applied without restriction.

Further details, features and advantages of the subject matter of the invention emerge from the following description of the associated drawing in which - by way of example - a preferred embodiment of a roll cutting machine according to the invention - in particular its winding tube feed device - is shown. In the drawing show:

Fig. 1 shows the rewinding device of a roll cutting machine in front view;

Fig. 2 A to H show a sequence of the transfer of two winding cores fed one after the other to the support elements of both core support beams;

Fig. 3 schematically shows the positioning of the winding cores distributed over the two winding stations in their clamping, winding and unloading position in a view according to Fig. 1 from above;

Fig. 4 is a section through the sleeve support beams according to section line IV-IV in Fig. 1;

Fig. 5 is a side view of the sleeve support beam shown on the left in Fig. 1 in an individual representation, with one of the piston/cylinder units provided on the sleeve support beam being particularly highlighted in the lower part of the representation;

Fig. 6 is a section along line IV-IV in Fig. 5;

Fig. 7 A to C a sequence of the reception and transfer cycle of a winding core by a core

supporting beams and

Fig. 8 shows the roll cutting machine in a view corresponding to Fig. 1 during the transverse cutting of the partial webs from the supplied web.

The rewinding device, designated as a whole with 100 in Fig. 1, comprises a support roller 1, to which the partial webs 2 created in a cutting station (not shown in the drawing) by longitudinally dividing a web are fed. The support roller 1 can have a vacuum suction option (not shown in the drawing) for holding partial web ends.

On both sides of the (at least) one support roller 1 there is a winding station 40, 50, each consisting of at least one, preferably a plurality of winding devices 41, 51.

Each winding device 41 or 51 consists (in its core) of a pair of support arms 42 or 52, which are provided with clamping devices 43 or 53 at their free ends. The clamping devices 43 or 53 can engage in tubular winding sleeves 44 or 54 from the winding sleeve ends, can be clamped to the winding sleeves in a rotationally fixed manner and can be driven in the direction of rotation.

The support arms 42 and 52 are pivotably mounted in their lower end areas around axes 45, 55. The pivoting path of the winding axis is shown as a dot-dash line 46 and 56, respectively.

The pivoting process of the support arms 42 and 52 takes place by means of piston/cylinder devices 47 and 57, which in turn are pivotably mounted about axes 48 and 58. The pivot bearings for the axes 45 and 48 and 55 and 58 are each located on a common support element, not shown in the drawing for the sake of clarity, with which each of the previously described assemblies 41, 51, each forming one half of a winding device, is connected.

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as a whole and independently of the other corresponding components along the width of the machine, i.e. along the at least one support roller 1, so that partial webs of different widths can be wound up into partial web rolls 3. The support roller 1 is supported by a frame not shown in the drawing. The previously described components are known per se from roll cutting machines and therefore do not require any further, detailed explanation.

All of the winding cores 33, 44 and 54 that form a set and are required for a winding process are fed to the roll cutting machine via a feed device 60 known in terms of its general function and there to the individual winding devices 41 and 51, respectively. For this purpose, an elongated support element, referred to as a channel 61, is provided, which extends across the entire width of the machine below the support roller 1 and parallel to it. The winding cores 33, 44 and 54, of which the winding core 33 is located in the channel 61 in Fig. 1, can be fed to the roll cutting machine using known feed devices 60.

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devices can be pushed from one end of the machine onto the channel 61 and positioned at a desired location. "

The channel 61 is formed by two legs 62 which extend over the entire width of the machine and are fixed to the tube support beams 70,80 which, in their feed position for a winding tube 33,44,54, are located below the support roller and extend in the direction of the same. ^; "^&idiagr;:>'■'"^i;' · ^;

The core support beams 70,80, which serve to transport winding cores provided in the channel 61 to the clamping devices 43,53, are provided with receiving elements 71,81, which ensure precise positioning and a secure position of the winding cores during the transport process.

The lifting or lowering movement required to move the sleeve support beams 70,80 between the - in the case of the

The delivery position for the winding sleeves is located at the bottom of the embodiment shown in the drawing and the transfer position is located at the top of the embodiment shown in the drawing, as shown in dashed lines in the left half of Fig. 1.

Spindle drives 73/83 are used to move the sleeve support beams 70,80 along the path curves 74,84 defined by guide means.

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In the design shown in the drawing

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en the leadership

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medium at the front ends of the sleeve support beams

70,80 provided rollers 75,85, which engage in guide slots 76,86 that are fixed to the machine frame 4 arranged at the longitudinal ends of the roll cutting machine (Fig. 4).

The transfer of a winding tube 33 located in the channel 61 to the receiving elements 71,81 of the tube support beams 70,80 takes place by "throwing" it out of the channel 61 and "catching" it by the receiving elements 71. For this purpose, the tube support beams 70,80 are only slightly displaced from their delivery position relative to one another, so that

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the winding tube 33 over the upper part of the legs 62

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provided, converging inclined surfaces 63 onto the receiving elements 71,81 of the lower sleeve support beam 70,80.

For clarification purposes, the provision and distribution of two winding cores 33 to the core support beams 70,80 is shown schematically in Fig. 2 A to H.

First, a winding tube 33 is pushed into the empty channel 61 (Fig. 2 A) in a known manner from one end of the machine and brought into the desired position (Fig. 2 B). The winding tube 33 positioned in the channel 61 is lifted by a slight lifting movement of the tube support beam 70 shown in the right half of Fig. 2 C over the dead center specified by the inclined surface 63 of the leg 62 attached to the left tube support beam 80 and is taken up by the receiving member 81

caught and positioned in the desired position. In order to give the winding tube 33 an additional impulse in the ejection direction - i.e. to the left in the ejection process in question - the path curve 74,84 specified by the guide slot is curved in such a way that the tube support beams shortly above the feed position perform a pivoting movement with their upper side in the direction

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of the other sleeve beam.

After the winding tube 33 has been delivered to the receiving elements 81 of the tube support beam 80, the tube support beam 70, which has been deflected from the delivery position, is moved back. Now, in the manner described, another winding tube can be delivered, as shown in Fig. 2 F, and transferred to the receiving elements 71 of the tube support beam 70 shown on the right by a lifting movement of the tube support beam 80 shown on the left in Fig. 2 E.

This process is repeated until all the winding cores required for a winding process have been distributed to the two core support beams. Since the channel 61 is always empty when a new winding core is fed in, the winding cores can be distributed to the two core support beams 70, 80 in such a way that they are in overlapping layers.

Such a situation, which occurs in particular when the desired partial web widths are so narrow that they no longer allow the tensioning devices 43,43' and 53,53/ on both sides to be moved far enough apart because the assemblies 41',41" and 51',51" of adjacent winding devices would then collide, is shown in Fig. 3. However, the possibility of allowing the winding cores of both core support beams to overlap by a certain length 0 makes it possible to first bring them into a position suitable for transfer to the tensioning devices, to carry out the clamping process here and then to release the clamped winding cores by moving the tensioning devices.

to the desired winding position. It is therefore possible with the device according to the invention to

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To distribute winding cores on the two core support beams in such a way that between adjacent winding cores of a core support beam there is at least a distance D that corresponds to the length of two adjacent clamping devices that are at a minimum distance from each other.

The following explains the functioning of the receiving elements 71,81 using Fig. 4 to 7. They consist - essentially - of a large number of lever systems 90 which are attached along the two sleeve support beams 70,80 to the

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sen are arranged so that they can pivot and are generally not displaceable in the cross-machine direction. In order to ensure that a winding core 33, 44, 54 is securely positioned during transport into its clamping position, the distance A between two adjacent lever systems 90 of a core support beam 70, 80 corresponds to at most half the length of the shortest winding core 33 to be transported, which has a length M. This measure ensures that, regardless of the position of the winding core 33 relative to the longitudinal extension of the core beam 70, 80, at least two lever systems 90 act on the winding core 33.

As can be seen in detail in Fig. 5, each lever system 90 comprises a rocker arm 91, which is pivotally mounted about an axis 92 running parallel to the longitudinal extension of the tube support beam 70, 80 and has an approximately vertical (93) and a guide surface 94 that slopes slightly downwards from the horizontal. The guide surfaces 93, 94 serve to securely position a winding tube 33 during its transport into the clamping position. Furthermore, each lever system 90 comprises a pivot arm 97 and a drag lever 98, which are arranged on a common shaft 96 that extends parallel to the longitudinal direction of the tube support beam. The shaft 96 itself is rotatably mounted on the tube support beam 80, with several piston/cylinder devices 99 distributed over the length of the tube support beam 80, which are on

a crank drive 101, are provided for pivoting the shaft 96.

When the shaft 96 pivots due to the piston/cylinder unit 99, all rocker arms 98 pivot as well, since they are arranged on the shaft 96 in a rotationally fixed manner.

The swivel arm 97, however, which consists of two plate-shaped halves 97', 97" arranged on both sides of the rocker arm 98, is freely rotatable on the shaft

96 stored.

Between the sleeve support beam 8Ö and each swivel arm

97 acts a compression spring 1Ö3, which is arranged in such a way that the spring force causes the part of the swivel arm 97 located above the shaft 96 to swivel outwards. In the locking position of the arm shown in Fig. 5, which corresponds to its position when transferring a winding tube 33 from the channel 61, this swivel movement is carried out by a

Stop 102, which acts against a stop surface provided at the lower end of the rocker arm 98, prevents this.

The rocker arm 91 is pivotable about an axis 92 running parallel to the sleeve support beam by means of a shaft 95 extending through all arms of a sleeve support beam. The maximum pivot angle of the rocker arm 91 is limited by a slot-shaped recess 104 machined into the latter, into which a pin 105 attached to the pivot arm 97 engages. With the aid of a compression spring 106, by means of which the side of the rocker arm 91 facing away from the channel 61 is supported on the pivot arm 97, the side of the rocker arm facing the channel 61 is pressed onto a support 107 provided on the sleeve support beam 80. In this position, the support 107 is engaged by an extension 108 provided on the rocker arm in such a way that pivoting of the pivot arm 97 induced by the compression spring 103 is prevented even if the rocker arm 98 is moved counterclockwise from its position shown in Fig. 5.

is pivoted and the stop 102 no longer rests against it.

For clarification, the functionality of the lever system described above will be explained using Fig. 7 A to C.

In Fig. 7 A, the lever system 90 of a core support beam 80 is shown in its rest position, i.e. in its lower feed position before a winding core has been fed. The piston/cylinder unit 99 is in an extended operating state in which the rocker arms 98 located on the shaft 96 are in an angular position which holds the arms 97 and the rocker arms 91 in the illustrated, non-pivoted position. Since the extension 108 engages behind the support 107 in this operating state in the manner described above, the lever system is additionally locked in this position.

If - as shown in Fig. 7 B - a winding tube 33 has been fed from the channel 61 to the rocker arm 91, the latter is pivoted by the weight of the winding tube 33 against the spring force of the compression spring 106 by the angle limited by the pin 105 engaging in the recess 104 in an anti-clockwise direction as shown in Fig. 7 B, so that the extension 108 supports the

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107 is released and the swivel arm 97 is held against the spring force induced by the compression spring 103 only by the stop 102 being placed against the rocker arm.

To transfer the winding tube 33 to a clamping device 54, the tube bar is - as already explained - moved along the path curve specified by the guide into the clamping position. In this position, as shown in Fig. 7 C, the piston/cylinder unit 99 is activated in such a way that the piston is retracted and thus the

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The rocker arm is pivoted counterclockwise as shown in Fig. 7 C. Since the weight of the winding tube 33 caused the rocker arm 91 to pivot so far that the extension 108 had released the support 107,

the swivel arm of the rotary movement of the drag lever 98, which is spring-loaded by the compression spring 103, whereby the stop 102 is always in contact with it. Through this swivel movement, the winding tube is swiveled out of its transport position into the actual clamping position, from which it can be taken over by the engagement of two clamping devices in the ends of the winding tube. Since those lever systems 90 whose rocker lever 91 is not loaded with a winding tube 33

remain in their locking position despite pivoting the corresponding drag lever, since the extension 108 in this case engages the support 107 (a lever system in this position is also shown in Fig. 7 C), the winding tubes 33 provided are always freely accessible from both sides without

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This requires further special measures.

In the roll cutting machine shown in Fig. 8, the core support beam shown on the left in the figure also carries a cross-cutting device 110 , with the aid of which the partial webs 2' fed to the corresponding left winding station 50 can be separated. A separate cross-cutting device 109, guided with the aid of a guide 111, which can be lowered from above as shown in Fig. 8, is used for the synchronized separation of the partial webs in the winding station 40 shown on the right. This cross-cutting device design enables the partial webs to be separated with minimal structural effort for the cross-cutting devices 109, 110.

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Reference symbol list Support roller 1 Partial railways 2 Winding tubes 33 Winding station 40 Winding device 41 Beam 42 Clamping device 43 Winding tube 44 axis 45 line 46 Piston/cylinder assembly 47 axis 48 Winding station 50 Winding device 51 Beam 52 Clamping device 53 Winding tube 54 axis 55 line 56 Piston/cylinder assembly 57 axis 58 Feeding device 60 gutter 61 leg 62 Areas 63 Sleeve support beam 70 Receiving organ 71 Spindle drive 73 Trajectory 74 Roller 75 Leadership backdrop 76 Sleeve support beam 80 Receiving organ 81 Spindle drive 83

·· ·· * ·· ·· &diams;·« Trajectory * · ··* · · · · · · ·· Roller Leadership backdrop Lever system 19 rocker arm 84 axis 85 Guide surface 86 Guide surface 90 Wave 91 Wave 92 Swivel arm 97 ',97" halves 93 Rocker arm 94 Piston/cylinder devices 95 Rewinder 96 Crank drive 97 attack 98 Compression spring 99 Recess 100 Pin code 101 Compression spring 102 In stock 103 Extension 104 Cross cutting device 105 Cross cutting device 106 Scenery 107 length 108 Distance 109 Distance 110 Long 111 0 D A M

Claims (13)

' nficiBinnpR ■ pccnw '..**,.* &Lgr;. .1.. _t . BIPLi ¹ HYS. DR, PETER PALGEN DUSSELDORF FOOD .. ,. ....... "dJ^.phys. DR. H. SCHUMACHER EUROPEAN PATENT ATTORNEYS our reference: 94 301 Düsseldorf, 3 0 November 1995 Beloit Technologies Inc., Suites 3001 3513 Concord Pike Wilmington, Delaware 19803 USA Expectations 1. Roll cutting machine of the support roller type, preferably equipped with a single support roller, on which at least one wide roll of a web of paper or the like can be divided into several narrower rolls (3, 3'), with an unwinding station for at least one wide roll, with a cutting station in which the wide web can be divided lengthwise into partial webs (2) by means of at least one length cutting device, - with two winding stations (40, 50) each with at least one winding device (41, 51), whereby (i) the two winding stations (40, 50) are arranged on opposite sides of the preferably single support roller (30), (ii) the winding devices (41, 51) assigned to the respective adjacent partial webs (2', 2") each belong to a different one of the two winding stations (40, 50) and (iii) each of the partial webs (2', 2") can be wound onto a respective winding device (41, 51) to form a narrower roll (3, 3'), pi,. ff _t :' D-40239 DÜSSELDORF · MULVANYSTRASSE 2 · TELEPHONE 49 / 211 1 96 145 - 0 ■ FAX 49 / 211 / 96 145 - 20 ■! , ;■ 'I ! , D-45133 ESSEN · FRÜHLINOSTRASSE 43 A · TELEPHONE 49 / 201 / M 230 - 0 · FAX 49 / 201 1 84 230 - 20 ;.;*;,,/";■', r . , ■ , ■. , rosromo Cologne (blz 370100 SO) iis 2 ii - 304 ?! ! ii! with a feed device (60) arranged approximately parallel to the preferably single support roller (1) for the precise feeding of all winding tubes (44,54) required for the winding devices (41,51) of both winding stations (40,50) into the take-over positions corresponding to the positions of the winding devices when taking over the tubes and for the subsequent distribution of all winding tubes (44,54) into the clamping positions of the winding devices (41,51) of both winding stations (40,50), consisting of a channel (61) for the winding tubes (44,54) and at least one transport device for each winding station (40,50) for transporting the winding tubes from their take-over position to the clamping position, characterized in that that the transport devices comprise raising and lowering tube support beams (70,80) associated with the two winding stations (40,50) which are provided with receiving elements (71,81) for the winding tubes (44,54), that the core support beams (70,80) are provided with means (62) which, in the feed position for a winding core (44,54) of the core support beams (70,80) assigned to the two winding stations (40,50), form the channel (61) in cooperation with the corresponding means (62) of the other core support beam (70,80), and that the means (62) are designed such that a winding tube (44, 54) located in the channel can be transferred to the receiving elements (71, 81) of one or the other tube support beam (70, 80). 2. Roll cutting machine according to claim 1, characterized in that the feed position of the sleeve support beams (70, 80) is located below the preferably single support roller (1). 3. Roll cutting machine according to claim 1 or 2, characterized in that the means for forming the '■■,t ^! '- '· 3 Channel (61) on the mutually facing sides of the core support beams (70,80) assigned to the two winding stations (40,50) arranged upwardly projecting legs ^i^ ¹ "¹;' (62), the upper edges of which are in the delivery position of the sleeve support beams (70,80) approximately in a vertical t ¹ ,;^'·';^ height. 4. Roll cutting machine according to claim 3, characterized in that the legs (62) are inclined upwards &Ggr; converging surfaces (63). '),/ ii&ldquor;, '&ldquor; , ^X ' ifiifii-iiij;,, ¹ !.; ¹ '· &igr; , ,! (Viii 5. Roll cutting machine according to claim 3 or 4, characterized in that the sleeve support beams (70,80) with a slight lifting movement from the delivery position ! :' &idigr;&iacgr;&idiagr;&igr;,,&igr;' &ldquor; . jl l· tion can be pivoted in such a way that the legs (62) forming the channel (61) move towards each other. ij 6. Roll cutting machine according to one of claims 1 to 5, characterized in that guide means, in particular rollers (75,85), are provided on the end faces of the sleeve support beams (70,80), which engage in guide slots (76,86) defining trajectories (74,84) of the lifting and lowering movement. &iacgr;,,&igr;&iacgr;&idiagr;&igr;;&Idigr;!''&idiagr;&igr;&iacgr;·&idiagr;,,, ^: ' ■■■■■■.■ &igr; ■ Jfc 7. Roll cutting machine according to one of claims 1 to 6, characterized in that spindle drives (73,83) are provided to generate the lifting or lowering movement of the sleeve support beams (70,80). 8. Roll cutting machine according to one of claims 1 to 7, in particular according to claim 7 or 8, characterized in that characterized in that the core support beams (70,80) are provided with transverse conveying means (91,97) which allow the winding cores (33) to be transferred laterally from the lifting and lowering plane of the core support beams (70,80) into the take-over position. &Uacgr;,
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··· 9. Roll cutting machine according to one of claims 1 to 8, characterized in that the receiving members (71, 81) for the winding tubes (44, 54) comprise rocker arms (91) for the precise positional reception and storage of the winding tubes during transport into the clamping position. 10. Roll cutting machine according to claim 9, characterized in that adjacent rocker arms (91) of a core support beam (70, 80) have a distance (A) from one another which is less than half the length (M) of the shortest winding core to be transported. &trade; 11. Roll cutting machine according to one of claims 8 to 10, characterized in that each rocker arm (91) is mounted on a spring-loaded, lockable arm (97) in such a way that when the rocker arm (91) is acted upon by a winding tube (44, 54), the pivot arm (97) is unlocked and that the pivot arms (97) are articulated to the tube support beam (70, 80) in such a way that unlocked pivot arms (97) pivot outwards with respect to the perpendicular bisector of the roll cutting machine after reaching the transfer position, so that the winding tubes (44, 54) are in their respective clamping position. ^ 12. Roll cutting machine according to one of claims 1 to 11, characterized in that at the relative to the feed direction of the web (2) of the rear winding ¹¹¹ i, : , 'i ^{ilH µ} ' A transverse cutting device (110) for the partial webs (2 ^f ) is provided on the sleeve support beam (80) assigned to the station (50), which can be activated in the transfer position of the sleeve support beam (80) and transversely cuts the partial webs (2 ') from one side - preferably the underside. 13. Roll cutting machine according to claim 12, characterized in that for the transverse separation of the partial webs (2") associated with the front winding station (40) in relation to the feed direction of the web (2), a separate A cross-cutting device (109) is provided which can be moved from the other side of the web into its cross-cutting position. !■if; :.■" ■ At-. ■/.. &&idgr;.5 . ,.. "]j ,», ||i'j"i! &igr;,&igr; Ii ' f ■■ . ■ 'ill',, ' . &igr;' *!!!!,&Xgr;,&iacgr;&Igr ^{; &Iacgr;&igr;&idigr;} &igr;:,.,,; k,Vu µgr;.: ■■ ■: ;,-:■: '<■·' , *&ldquor;,&ldquor;'':