DE7608814U1 - SIGHT ROLLER - Google Patents

Description

Liadi, I \ iöih, ^ ZeMtfer

Patent attorneys
QOQ Munich 2 2 S t β i η sd ο rfstra β β 21 - 2 2 Telephone 0G9 / 29 84

A 7679

Maschinenfabrik EDELMANN KG, 8751 Obernau

Visual rewinder

The invention relates to a vision rewinder according to the preamble of Claim 1.

Visual rewinders of this type are used for rewinding web material from larger to smaller laps, for error control, for accurate calibration Measure ", * for cutting to length into salable units, for packing in packaging material such as paper or plastic film, for trimming longitudinal edges as well as dividing into different web widths, to separate out waste, p-sections etc.

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The rolled over on the vision rewinder of the type in question here Railway materials are, in particular, transfer printing papers and thermal printing papers, but also printed decorative papers, decorative foils, wallpapers etc. Here, in particular, the transfer or thermal printing papers are used for a dry printing process in which, in contrast to the wet printing process requiring a drying device and a tenter frame the papers to be indirect but dry Fabric printing can be used. Here the color of the with special colors printed paper brought into a gaseous state by heat and applied to the textile fiber or other surface of the to be printed Transferring the good, in which it then sublimates. Such thermal printing papers are usually wound up on a raw roll and must therefore carry out the above-mentioned operations on a Visual rewinder are subjected. However, the vision rewinder used up to now are not only cumbersome to use, but also in their performance, i.e. in their working speed or do not increase the running speed. This is namely limited by the fact that an observation of the web material after Type of design and color is required and therefore an operator who operates and observes the vision rewinder naturally predetermined limit is present.

The invention is therefore based on the object of the vision rewinder to design generic ge type in such a way that it is simpler Handling and at the same time compact design enables an increase in performance without impairing its actual functions.

The features of the invention created to achieve this object emerge from the claims.

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The invention is based on the idea of handling the vision rewinder to simplify thereby and to increase its performance with at the same time more compact design by the fact that the implementation Time required by individual work processes or set-up processes is considerably reduced by the time provided at the relevant parts Facilities are either more work-friendly or more labor-intensive or else mechanized or automated.

The invention is explained in more detail below with reference to the drawing. This shows in:

Fig. 1 schematically in side view or in section the visual

rewinder;

Fig. 2 in plan view of the finished lap removal device and

Fig. 3 schematically in a perspective view the one

direction for the automatic regulation of the web material tension. »

As can be seen from the drawing, in particular from FIG. 1, the view rewinder shown on a machine frame 1, which is provided essentially by two at a parallel distance from one another and is formed by side walls connected to one another, not shown, cross members. On the back of the machine frame 1 is an unwinding point 2 and on the front of the machine frame a winding point 3 for the passing through the vision rewinder Web material 4, such as thermal printing paper or the like. Provided.

The unwinding point 2 has a transversely mounted in the machine frame 1 Unwinding shaft 5, which is located when the web material 4

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rotating in the direction of the wedge A and out of the web material to be sifted 4 formed raw roll 6 carries and by means of the usual quick release bearings 7 quickly and securely locked in their bearings or, can be released or removed from this.

The web material 4 to be sifted runs from the raw roll 6 over two guide rollers 8, 9, between which an angled field of vision 10 for visual control of the web material 4 is arranged. The web material 4 runs from the guide roller 9 over an automatic control of the web material tension provided dancer roller 11, another Leitwaize 12, sine Separating and gluing device 13 and two further guide rollers 14, 15 for winding point 3. Here, the guide roller 15 is used in conjunction with an upper cutting roller 15 'as a longitudinal edge cutting device. the In the illustrated embodiment, winding point 3 contains two transversely on the front side of the machine frame 1 at a vertical distance winding shafts 16, 17 supported by one another for goods to be wound onto a finished reel or for goods to be wound onto a finished reel 19 Waste. Here, the good goods are fed to the take-up shaft 16 or to the good goods roll 18 arranged thereon via the guide roller 15, while the waste is fed to the take-up shaft 17 or to the waste roll 19 via the guide roller 14 and a further guide roller 20.

For the forward running or, if necessary, the reverse running of the web material 4, a speed can be regulated as required Drive 21 is provided, which via a belt drive 22 for forward running on the take-up shafts 16, 17 or via a belt drive 23 acts on the unwinding shaft 5 for reverse rotation.

Stand in the operating area, ie within reach of a publicized white on the front of the machine frame 1 or the view rewinder _; the operator are also a length measuring device 24 for

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the total measurement, a switch box 25, a calibrated length measuring device 26 for that web material 4, which as good goods on the finished roll 18 is wound, and finally a speed switch lever 27 is arranged. In addition, the one from FIG. 1 visible place in the machine frame 1 a packaging material unwinding device 28 provided.

Formation of the winding point 3

Only the one relating to the take-up shaft 16 is described below Formation of the winding point 3 described, since the winding point 3 in view of the Aufwickehv eile 17 a substantially to this has identical training.

As can be seen from Fig. 1, and in particular from Fig. 2, the winding shaft 16 is rotatably articulated at its one end 29 in the machine frame and at or near its other end 30 horizontally pivoted out of the machine frame 1, in such a way that that the winding shaft 16 by means of its forth from ver pivotable end 30 between a winding position shown in Fig. 2 with full lines and an unloading or loading position shown in phantom in Fig. 2 is movable. At its stationary articulated end 29, the take-up shaft 16 is mounted in a ball joint 31 connected to the machine frame 1, which can also be any other suitable joint, for example a cardan joint or the like the winding shaft 16 can only be pivoted out of the machine number η 1 in the manner indicated in FIG. 2, but cannot be detached therefrom.

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At its pivotable end 30, the take-up shaft 16 rests, i

i Wfpin it is in the winding position, in a bearing 32, which can be a plain bearing, for example, but in the illustrated embodiment it represents the bearing shell of a bearing cooperating with ball bearing races 33 of the relevant shaft end 30. As can be seen from FIG. 1, the end 30 of the winding shaft 16 can be locked in the winding position by means of a conventional quick-release device.

The bearing receiving the pivotable end 30 of the take-up shaft 16 32 is from the machine frame 1 together with one of these according to formed in front of the protruding support bracket 35, on which in turn a pivot bracket 36 is articulated on the front side. The upper edge of the Swivel bracket 36, as can be seen from FIG. 1, together with the upper edge of the support bracket 35 an approximately horizontal support edge can be pivoted out and guiding the relevant end 30 of the take-up shaft 16. The pivot bracket 36 has at its free end a nhsn protruding stop shoulder 37 for the unloading or. Loading position pivoted end 30 of the take-up shaft 16.

The swivel bracket 36 is in the horizontal plane between an inoperative position, in which it is pivoted sideways, and an operating position in which it is pivoted with the support bracket 35 roughly aligns. The pivoting movement of the pivot bracket 36 can preferably be force-operated, specifically by means of a not shown Pressure cylinder, take place.

As can be seen from Fig. 2, the pivotable end 30 is the Winding shaft 16 for the easy reception of a cardboard tube 38 or the like. For the finished winding 18 is designed to be tapered and has, for example, the shape of a truncated cone or the like.

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To remove the finished roll 18, after previously the swivel bracket 36 f.us their inoperative position is pivoted into the operating position aligned with the support bracket 35 and the Schnellspannein direction 34 was released, the shaft end 30 is pivoted from the winding position into the unloading position, with this pivoting movement the shaft end 30 on the upper edges of the support bracket 35 and swivel bracket 36 rests and is slid along this up to the stop on the stop shoulder 37. In this unloading position, in the Lifting and transport trolley 39 with a height-adjustable receiving tray 40 has been arranged for the finished lap 18 at the corresponding point, the finished lap 18 is lifted by the lifting carriage 39, the pivot bracket 36 is pivoted into the inoperative position and the finished roll 18 then together with the cardboard tube 38 from the Winding shaft 16 withdrawn by moving the carriage 39 away from the side. Then it is only necessary to have a new cardboard tube 38 for receiving a further roll 18 via the correspondingly designed shaft end 30 towards the winding shaft 16 slide and the latter to spend again in its winding position, for which the SchwenkkoRSole 36 is pivoted back into its operating position will.

Construction of the packaging material unwinding device 28

The packaging material unwinding device 28 is behind the lowest, for receiving the waste goods serving take-up shaft 17 and stored below this transversely within the machine frame 1 and has a roll 42 formed from packaging material 41, such as paper or plastic film. This is on a rotatably mounted shaft 43 and guided out of the machine frame I with its respective winding start 44. this takes place via a deflection roller 45, which is a mechanically actuated

7679

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Clamping bar 46 or some other clamping device for the beginning of the winding 44 of the ¹ packaging material 41 is assigned.

The wrapping material roll 42 is together with the one carrying it Shaft 43 can be moved to its predetermined position in the machine frame 1 on a roll-up device 47, which consists of two on both sides of the Machine frame 1 arranged slideways consists. These slideways 47 are inclined slightly downwards from the front of the frame into the interior of the machine frame 1 up to the bearing point of the shaft 43 of the packaging material roll 42.

Due to this training, it is not only possible in a simple way to bring the packaging material roll 42 to its predetermined storage location within the machine frame 1, but also the respective sifted winding 18 or 19 to pack in a convenient manner after its completion.

Training of the unwinding point 2

For easier and faster lifting of the raw coil to be sifted 6, the unwinding point 2 is assigned a raw lap lifting device 48 which has two power-operated lifting arms 49. These are each hinged with their lower end at 50 on both sides of the machine frame 1 on the rear side thereof, namely near the floor. At their upper end, the lifting arms 49 each have a receptacle for the end in question in the unwinding section 2 with the raw roll 6 to be lifted unwinding shaft 5, this Recording in the manner shown in FIG. 1 from the horizontally extending upper edge 51 of the lifting arms 49 and one attached to it on the outside adjoining, upwardly projecting stop shoulder 52 is formed.

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At a suitable point on both sides of the machine frame I is in each case at 53 a pressure medium cylinder 54, in particular a hydraulic cylinder, articulated, the piston rod 55 of which at 56 at a suitable point of the Lifting arm 49 is articulated between the upper and lower ends.

By means of these pressure medium cylinders 54 and the piston rods assigned to them 55 are therefore the lifting arms 48 together between their position shown in phantom in FIG. 1, in which they attach the raw roll 6 the ends of its unwinding shaft 5 from the ground or from the relevant

Raise the mounting tray 40 of the trolley 39, and one in t

Fig. 1 pivotable position shown in solid lines, in which the raw roll 6 together with its unwinding shaft 5 are brought to the intended bearing parts of the unwinding point 2 can. Here, the unwinding shaft 5 is also - similar to the training the winding point 3 - on an approximately horizontally extending guide edge or guide surface can be rolled through the upper edge 51 of the Lifting arms 49 and a corresponding upper edge or surface of the machine frame 1 is formed.

Arrangement and design of the longitudinal edge cutting device 15, 15 '

The longitudinal edge cutting device can be seen at the end of FIG and arranged approximately horizontally extending part of the transport path of the web material 4, the web material 4 before it is in the Longitudinal edge cutting device 15, 15 'enters and there on its longitudinal edges for severing edge strips that run irregularly on both sides 57 is cut, the field of view 10, the guide roller 9 adjoining its lower end, the dancer roller 11 and the separating and gluing device 13 has passed. It is essential that the longitudinal edge cutting device 15, 15 ', as can be seen from FIG

J, M .... ft

Operating area of the view winder, i.e. within reach of a normal *

operator standing in front of the front of the machine frame 1, is arranged. The longitudinal edge cutting device 15, 15 '

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-Ϊ2

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consists of an upper knife shaft 15 'and a lower knife shaft 15 assigned to it on the underside, the latter simultaneously serving as a guide roller for the web material 4 to be deflected by more than 90 at this point. Each knife shaft 15 _} 15 'is in the usual way with two or more

knives (not shown) having a circumferential cutting edge j

provided, which in one of the finally desired width of the web dimension j

rerials 4 are arranged correspondingly spaced from one another and with the!

Knives of the relevant other knife shaft 15 or 15 'according to type \

a silhouette work together. Of course, the mes f

ser both in their horizontal and in their vertical spacing |

adjustable from each other, whereby the adjustment of the vertical distance | between the knives of the two knife shafts 15, 15 ', for example by lifting or pressing the upper knife shaft 15' takes place by means of a threaded spindle.

The edge strips cut off on both sides of the web material 4 is sucked off by means of suction nozzles 60 arranged at the corresponding point on the underside after the lower cutter shaft 15 and via a no further The line system shown is transported to a suitable location inside or outside the view rewinder.

In any case, due to the chosen training and arrangement, the Longitudinal edge cutting device 15, 15 'ensures that it is easily and conveniently accessible and can be operated, which is then in particular of. importance is when the cut edge strip 57 is at the beginning of cutting or at the beginning of a new forward run after a backward run of the web material 4 must be introduced into the suction nozzles 60 by hand.

The knife shafts 15, 15 'can except for cutting off the edge strip 57 can also be equipped with additional cutting blades, e.g. for performing a center cut.

Separating and gluing device 13

As can be seen from Fig. 1, is in the transport direction of the web material after the guide roller 12, also in the easily accessible operating area of the view rewinder, the separating and gluing device 13 for the web material 4 arranged, which essentially consists of two clamping bars 61, which can be actuated by pressure means, for clamping the web material 4 as well as consists of an adhesive table 62 having a cutting device (cutting groove for guiding the cutting knife).

Device for the automatic regulation of the web material tension

This can be seen from FIG. 1 and in detail schematically from FIG Device has the dancer roller 11, which is provided between the guide roller 9 provided at the end of the inclined field of view 10 and the Guide roller 12 in the path of the web material 4 vertically adjustable in height between two arranged vertically at a suitable distance from one another Guide plates 63 or the like. Is guided and accordingly under the direct action of the exerted by the web material 4 Tensile stress. The horizontal shaft 64 supporting the dancer roller 11 has its free ends at both ends connected by piston rods 65 or mounted on them. The piston rods 65, together with pistons 66, are on both sides of the piston 66 Cylinders 67 pressurized or pressurizable with pressure medium are displaceable, pneumatic cylinders preferably being used reach. One of the two piston rods 65 is via a connecting rod 68 provided rigidly and at an angle to this with an inclined cam surface 69 connected, which can move along a corresponding scanning member 70. This in turn works through a yet to be described controllable actuating device on the pressure cylinder 71 a brake caliper 72, in the sense of venting or tightening it, so that thereby one with the brake caliper

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Ql

cooperating brake disc 73 braked more or less strongly or can be released. This takes place accordingly in each case as a function of the height position of the dancer roller 11, which on the one hand by the actual measured by the dancer roller II Web material tension and on the other hand through the adjustable pressure on both sides of the pistons 66 in the cylinders 67 (to generate the desired Web material pretension) is determined. As can also be seen from FIG. 3, the brake disk 73 is rotationally fixed to the one Connected to the end of the unwinding shaft 5 supporting the raw roll to be sifted.

The influenced by the dancer roller 11 in accordance with the prevailing web material tension via the cam device 69, 70, The controllable actuating device for the brake caliper 72 or its pressure medium cylinder 71 essentially has a pressure reducing valve DRV on, which is constantly acted upon by a compressed air source 74. For a comprehensive explanation of the automatic control of the web material tension For the sake of simplicity, the various essential operational statuses are shown below express reference to the features shown in Fig. 3:

a) Output division

One between the pressure medium source 74 and a maintenance unit on the one hand and the actuating cylinder 71 of the brake caliper 72 on the other hand provided 3/2-way valve S 1 is in the neutral position, in which it is de-energized, the connection P being blocked and port A is vented after port R. Accordingly; The connection X is also one between the valve S 1 and the actuating cylinder 71 provided shuttle valve WV depressurized.

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A 3/2-way valve S 2, which is arranged between the pressure medium source 74 and the shuttle valve WV parallel to the valve S 1 and which is used by the ',

Pressure medium source 74 transfers incoming air pressure or network pressure to the pressure reducing valve DRV 1, is also in the zero position, ie it is de-energized. In this position the on \

circuit T of valve S 2 blocked, while ports P and A:

are connected to each other and transmit the network pressure to port P of the pressure reducing valve DRV 1. In this pressure-reducing valve 1, the DRV to the terminal Y of the shuttle valve WV and thus results in the actuating cylinder 71 of the caliper 72 transmitted \

Genetic output pressure at port A according to the respective height position of the dancer roller 11 or according to the position ■

the piston 66 in the cylinder 67, this position being immediate is scanned by the scanning element 70 on the inclined cam surface 69 and that of the connection A of the pressure reducing valve DRV 1 in each case; resulting output pressure depending on the selected country | ge, incline and respective division of the JNockenscnraguacne by o, for example can be regulated from 0.1 - 7.1 bar. One continues 4/2-way valve S 3 connected to the pressure medium source 74 is located is also in the zero position, in which it is de-energized. Connections P and B of valve S 3 are connected to one another connected so that the network pressure is passed to the connection P of a pressure reducing valve DRV 2 connected downstream of the valve S 3. This pressure reducing valve DRV 2, in which the network pressure is applied to connection P, is used to generate the pre-tensioned web material desired in advance adjustable and accordingly supplies a preselected output pressure via its connection B and via a One-way flow control valve on the piston rod side of the cylinder

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b) idle state

With the circuit status of the individual parts explained under a) above

of the device is the actuating cylinder 71 for the brake calliper 72 |

Via the connection Y of the shuttle valve WV with that pressure S

applied, which is released from the output port A of the pressure reducing valve DRV 1. Since the cylinder 67 on the piston rod side with the pressure J set on the output side at the pressure reducing valve DRV 2

acted upon and thus the pistons 66 are fully inserted into the cylinders 67.

are driving, the scanning element 70 is due to the maximum after J

cam inclined surface 69 shifted below completely into. the pressure |

reducing valve DRV 1 pressed in, so that the latter has the maximum pressure =

of, for example, 7.1 bar to the actuating cylinder 71 for the J

Brake caliper 72 releases. The brake caliper 72 is therefore with respect to the brake disc 73 in its maximum braking position.

c) Start up

By turning on the drive motor 21 shown in FIG. 1 for the view rewinder, the web material 4 is attracted and accordingly the dancer roller 11 from the web material 4 against the effect of the pressure prevailing in the cylinders 67 on the piston rod side shifted vertically upwards until equilibrium prevails. The da- ί

air that is more highly compressed in the cylinders 67 on the piston rod side is released via the vent hole of the pressure reducing valve DRV 2 j

derived. At the same time, via the cam device 69, 70, j

since the cam inclined surface 69 shifts upwards, the out j

j Reduce the inlet pressure at port A of the pressure reducing valve DRV 1!

changes, so that the brake pressure in the actuating cylinder 71 for the brake caliper 72 and that formed by the parts 72, 73 is lowered Brake is vented. As a result, the raw roll 6 can also rotate for unwinding the web material 4 to be sifted.

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Since the output from the pressure reducing valve DRV 2 at port B. Pressure and the areas of the cylinders 67 and the pistons 66 are constant, but when performing the operation of the classifier the diameter of the raw roll 6 is steadily smaller during the unwinding process, this is in the course of operation of the brake calliper 72 braking torque exerted on the brake disk 73 is greater than permissible, so that the dancer roller 11 is pulled upwards. As a result, however, the output pressure at port A of the pressure reducing valve is set in the manner explained via the cam device 69, 70 DRV 1 decreased, so that on the actuating cylinder 71, the brake pressure exerted for the brake caliper 72 drops until the tension or pressure equilibrium again prevails.

d) stop

After switching off the drive motor 21, the rail \

material 4 stopped, but the raw roll 6 still rotates a little ή

further. This immediately sinks the dancer roller 11 downwards, so that the output pressure at the pressure reducing valve DRV 1 via the cam device 69, 70 is increased. As a result, the pressure exerted on the brake disk 73 by the brake caliper 72 also increases immediately Braking torque, so that the raw roll 6 is braked to a greater extent and no sagging whatsoever due to the short response times Web material 4 results.

e) Cut and glue

When the magnet of valve S 3 is switched on, its output becomes A is pressurized via the connection P with the network pressure, so that the pressure on a separate pressure reducing valve DRV 3 at the output B set pressure on the underside of the cylinder 67, i.e. on the side of each piston 66 facing away from the piston rod 65

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and the web material tension set via the pressure reducing valve DRV 2 cancels. As a result, the web material 4 can be manually placed on the gluing table 62 of the separating and gluing device 13 as desired Implementation of the various separating, gluing and clamping processes can be postponed.

f) emergency stop

If an emergency stop has to be carried out, the magnet of the Valve S 1 energized so that its ports P and A are connected to one another. As a result, the network pressure reaches input X of the shuttle valve WV and from here directly to the actuating cylinder 71 for the brake caliper 72.

In any case, the device described ensures that that an automatic regulation of the web material tension to a constant value takes place, with a dancer roller instead of a Pendulum roller uäer ugi. z, ui AüWcüdung could come. Meanwhile Transport of the web material 4 from the unwinding point 2 to the winding point 3 no readjustment of the web material tension is necessary, with the additional advantage that the web material tension Depending on the type of material, it can be adjusted in that the pressure on the piston rod side in the cylinders 67 via the adjustable pressure reducing valve DRV 2 is adjustable.

Instead of the scanning element cooperating with the inclined cam surface 69 70 can of course also have a different transmission of the respective height position of the piston rod 65 to the pressure reducing valve DRV 1, for example by means of an eccentric, lever, etc., are used.

j
jj 7379

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Claims (25)

Protection claims 1. Visual rewinder for rewinding under visualization Web materials from a transverse unwinding point provided on the rear of a machine frame to one on the front of the frame transversely provided winding point, with an unwinding shaft assigned to the unwinding point and carrying the material roll to be sifted, at least one winding shaft assigned to the winding point and with guide rollers for guiding the web material, characterized in that that the take-up shaft (16, 17) hinged at one end (29) rotatably in the machine frame (1) and at its the other end (30) can be pivoted horizontally out of the machine frame (1) is stored in this and can be moved between a winding position and an unloading or loading position. 2. view rewinder according to claim 1, characterized in that that the winding shaft (16, 17) at its stationary articulated end (29) in a ball joint (31) connected to the machine frame (1) or the like. Is stored. 3. view winder according to claim 1 or 2, characterized in that that the winding shaft (16, 17) rests at its pivotable end (30) in the winding position in a bearing (32) which is formed by the machine frame (1) together with a support bracket (35) projecting forward therefrom. 4. view rewinder according to claim 3, characterized in that a pivot bracket (36) is articulated on the front side of the support bracket (35) is, the upper edge of which, together with the upper edge of the support bracket (35), forms an approximately horizontal support edge for pivoting out of the relevant end (30) of the take-up shaft (16, 17). 7608814 07/15/76 5. view rewinder according to claim 4, characterized in that the pivot bracket (36) at its free end an upwardly projecting stop shoulder (37) for the pivoted in the unloading or loading position end (30) of the winding shaft (16,. ¹ 7 ) having. 6. view winder according to claim 4 or 5, characterized in that the pivot bracket (36) in the horizontal plane between a Inoperative position and an operating position can be swiveled, in which it is approximately aligned with the support bracket (35). 7. view rewinder according to claim 6, characterized in that that the swivel bracket (36) can be swiveled in a force-operated manner by means of a pressure medium cylinder. 8. view winder according to any one of claims 1-7, characterized in that that the pivotable end (30) of the take-up reel (16, 17) receiving bearing is a detachable quick release bearing (32, 34) is. 9. Visual rewinder according to one of claims 1 - 8, characterized in that that the pivotable end (30) of the winding shaft (16, 17) to easily accommodate a cardboard tube (38) or the like. for the sighted winding (18, 19) is tapered. 10. Visual rewinder according to one of claims 1-9 with an upper take-up shaft and a lower one provided at a distance therefrom Winding shaft for goods or waste goods, characterized in that that each winding shaft (16, 17) has an end (30) that can be pivoted horizontally out of the machine frame (1) and on 7608814 07/15/76 - 19 - the side of the machine frame (1) assigned to this end (30) with a support bracket (35) and swivel bracket (36) to support the shaft end (30) which has been pivoted into the unloading or loading position cooperates. 11. Visual rewinder according to one of claims 1 - 10, characterized in that that behind the lowermost winding shaft (17) and below this transversely within the machine frame (1) a packaging material unwinding device (28) is stored. 12. view rewinder according to claim 1, characterized in that that the packaging material unwinding device (28) is one made of packaging material (41) has formed winding (42) which is arranged on a rotatably mounted shaft (43) and with its respective beginning of the winding (44) is led out of the machine frame (1). 13. Visual rewinder according to claim 12, characterized in that that the respective beginning (44) of the packaging material roll (42) is led out of the machine frame (1) via a deflection roller (45) is. 14. Visual rewinder according to claim 13, characterized in that the deflecting roller (45) has a clamping bar (46) or another Clamping device for the beginning of the winding (44) of the packaging material (41) is assigned. 15. Visual rewinder according to one of claims 11-14, characterized characterized in that the wrapping material roll (42) together with the shaft (43) carrying it on a rolling device (47) can be moved to its predetermined location in the machine frame (1). 7679 7608814 07/15/76 Pj 16. View winder according to claim 15, characterized in that I, ifaß the curling device from two on both sides of the machine frame (1) h arranged slideways (47) consists of the front of the frame from, in particular slightly inclined downwards, run into the interior of the frame up to the bearing point of the shaft (43) of the packaging material roll (42). 17. Visual rewinder according to one of claims 1 - 16, characterized in that that the unwinding point (2) is a power-operated Rohwickeleinhebevorrichtung (48) is assigned. 18. A view rewinder according to claim 17, characterized in that the Rohwickeleinhebevorrichtung (48) has two lifting arms (49), each with their lower end below the Abwickeis parts (2) are hinged on both sides on the rear of the machine frame (1) and on their upper end a receptacle (5l _; 52) for the relevant f "J ~ J ~ _: _ jj_ Ai i _i-i_.i-τι- / ov. - ti. -j -r ^ «_. ·«. f // «v i—. ~ w ~ - ^ »» »» vii. ^. . «JViiwiCniWilC \« J / iiUOaululCH IULl UCÜl llOli W ICIVCi \\ J j have to be lifted unwinding shaft (5). 19. Visual rewinder according to claim 17 or 18, characterized in that that the lifting arms (49) can be pivoted by means of pressure cylinders (54), on the one hand on the machine frame (1) and on the other hand are articulated with the end of their piston rods (55) on the lifting arms (49). 20. Visual rewinder according to one of claims 1-19, characterized in that that he has one made of an upper knife welio (15 ') and a lower knife shaft (15) existing longitudinal edge cutting device (15, 15 ') with two edge strip suction nozzles (60) arranged downstream of these on the underside which near the lower end of the viewing field (10) in the operating area or within reach of an operator standing in front of the front of the machine frame (1). 7608814 07/15/76 21. Visual rewinder according to claim 20, characterized in that that at least the upper knife shaft (15 ') is assigned one or more further knives for additional longitudinal cuts of the web material (4) are. 22. Visual rewinder according to one of claims 1 -21, characterized in that that the separating and glueing device (13) for the Web material (4) arranged in the operating area of the view rewinder in the transport direction of the web material (4) after the guide roller (12) is. 23. Vision rewinder according to one of claims 1-22 with an adjustable Brake, in particular in the form of a brake caliper, which interacts with a brake disc of the unwinding shaft carrying the raw roll, characterized in that for the automatic regulation of the web material tension between one at the end of the sight line (10) provided guide roller (9) and the guide roller (12) in the path of the web material (4) a dancer roller (11) vertically adjustable in height guided and rotatably mounted on the free ends of the piston rods (65) of pressurized cylinders (67) and accordingly their height position determined on the one hand by the adjustable pressure in the cylinders (67) and on the other hand by the web material tension by means of an actuating device (74, DRV 1, 69, 70) The brake (72, 73) for the raw roll (6) is actuated. 24. Visual rewinder according to claim 23, characterized in that together with one of the dancer roll (11) supporting piston rods (65) the pressure cylinder (67) has an inclined cam surface (69) which is adjustable in height via a scanning element (70) which is adjustable Pressure reducing valve (DRV 1) having actuating device in the sense of venting or applying the brake (72, 73) influenced. 7679 7608314 07/15/76 25. Sight roller according to claim 23 or 24, characterized in that that instead of cooperating with the inclined cam surface (69) Aotast member (70) other transmission means, such as eccentric lever and the like, between piston rod (65) and pressure reducing valve (DRV 1) are provided, ^r i679 7608314 07/15/76