WO1981001946A1

WO1981001946A1 - Machine loading device for the tobacco industry continously supplied with a paper web

Info

Publication number: WO1981001946A1
Application number: PCT/DE1981/000007
Authority: WO
Inventors: G Filter; T Toenshoff; R Duwe
Original assignee: Bat Cigarettenfab Gmbh
Priority date: 1980-01-08
Filing date: 1981-01-08
Publication date: 1981-07-23
Also published as: IT8119051A0; GB2066789B; FR2472918B1; JPS56501829A; DE3000723A1; GB2066789A; DE3000723C2; FR2472918A1; BR8105058A; IT1134970B

Abstract

Loading device for a tobacco processing machine continously supplied with a paper web, and particularly loading method and loading device (10) with a high degree of automation for implementing such method. The loading device (10) comprises substantially an automatic changing device (18) for changing the reel; a reel store (24), and a claw device (30) for gripping and removing the reels movable between the store and the changing device (18), with which a full reel (26) is removed from the store (24), after each change and is arranged in the changing device (18) replacing a previously removed empty reel.

Description

Feeding system for a machine in the tobacco processing industry with a continuous supply of a paper strip or tape

The invention relates to a loading system for machines in the tobacco processing industry and relates in particular to a method for the continuous feeding of a paper strip or tape wound onto individual bobbins and to an automatic loading device of a bobbin changing device of the largely automatically running machine.

Despite the very high degree of automation, especially in the manufacture of cigarettes, it has hitherto been necessary to replace the paper bobbins by hand, i.e. H. remove an empty bobbin or spool from a bobbin peg while a second full bobbin is in the process of being unloaded.

This frequent work due to the high production speed is tedious and time-consuming. Furthermore, the expired bobbin, the band end of which is previously connected to the beginning of the new paper roll, must be removed and the position of the empty bobbin holder, which has a free-running bobbin pin, must be changed with the full bobbin holder before a new paper roll is brought up and fitted onto the bobbin pin.

A certain amount of work is made easier by semi-automatic bobbin changing devices, in which the bobbin pins are diametrically opposite on radial rotating arms or a turntable are mounted and which allow an automatic change of the two working positions of a full bobbin and an expired bobbin. Even with these semi-automatic bobbin changers, which are known, for example, for the supply of cigarette paper for wrapping the tobacco rod in a cigarette machine, the base paper for filtering the cigarettes in a filter attachment machine or the wrapping paper in a filter manufacturing machine, the exchange of an expired bobbin and a full θobine must be carried out, however still be done by hand.

In addition, the rotary movement during the changing process requires a relatively large amount of space, even if the change is only made when a previously used bobbin has already partially expired.

This is particularly problematic in machines in which the space available for the paper reels is limited, for example, by protruding machine parts, in such a way that the known, semi-automatic changers cannot be used here. For this reason, a cigarette machine is also known in which the semi-automatic changer is attached to one side of the machine. The main disadvantage is the long paper paper leading to the front of the machine, on which the paper can easily be damaged.

The invention is based on the object of improving a method and a device for continuously feeding a paper strip or tape wound onto individual bobbins to a machine with a bobbin changing device in such a way that work can be carried out as simply, quickly and reliably as possible with extensive automation of the process sequence. To achieve this object, a method for continuously feeding a paper tape or strip wound on bobbins to a bobbin changing device of a machine of the tobacco processing industry according to the invention is carried out in such a way that a number of full bobbins laterally from the bobbin changing device are aligned essentially parallel to the working plane of the changing device set up in a coaxial row one after the other, gradually moved forward and individually picked up one after the other, brought into a level lying in front of the working level of the changing device and moved in this plane across the supply row in front of the empty bobbin pegs of the changing device and pushed onto it before being in one the changing positions of the full and the now expired bobbin are exchanged, the expired bobbin is then pulled off its spigot and lies in the movement in front of the working level the plane of movement on the way to the bobbin supply row between the changing device and the storage row is thrown into a collecting container before the next bobbin is taken from the storage row.

The method according to the invention is characterized by a favorable movement sequence, in which the bobbins, which are taken essentially parallel to their final upright working position from a magazine of a row of full bobbins in a row, are moved in the same way to the changing device, on which the subsequently empty and removed bobbin is moved back and discarded before the next bobbin is picked up. As a result, the invention enables a faster process sequence compared to the prior art, in which the full bobbins are usually stacked on a storage table near the machine, from which they are picked up after the position of the bobbin pins has been changed and the empty bobbin has been removed. The invention also includes an advantageous device that allows extensive automation of the workflow, so that the workload during operation or when monitoring the machine can be further reduced.

In a preferred embodiment of the invention, particular advantages result from the fact that the position change of the bobbins does not take place in a circular movement, as in the known semi-automatic bobbin changers, but rather along a closed guide curve on which the running bobbin, which has then partially run off, is raised somewhat and in the paper feed direction is moved while the expired bobbin is lowered under the running bobbin against the paper feed direction before it is removed and a new bobbin is inserted. This alternating movement enables a particularly space-saving and flat design with a small installation depth on a relatively small machine area, which would not be sufficient for an installation of previously known changing devices.

Further advantages and features of the invention result from the following description and the drawing, in which the invention is explained and illustrated in more detail with the aid of a preferred exemplary embodiment. Schematically, in part, show a very simplified view:

1 is a perspective view of a machine combination customary for the production of filter cigarettes with a cigarette machine equipped according to the invention and a filter attachment machine which follows in operation,

2 is an enlarged view corresponding essentially to FIG. 1 to illustrate further details of the device according to the invention, 3 shows a front view of a gripping and stripping device according to the invention of the automatic loading device,

Fig. 4 is a section along the line IV-IV in Fig. 3 view of the gripping and stripping device according to the invention and

5 is a partially sectioned view, seen in the direction of arrow V in FIG. 2, of a carrier of a free-running reel take-up reel of the changing device according to the invention, which carrier is movable on a guide curve.

1 shows a device 10 according to the invention in connection with a conventional combination of a cigarette machine 12 and a filter attachment machine 14. The device 10 serves for the automatic loading of the cigarette machine 12 with cigarette paper for wrapping the tobacco rod formed in this machine.

Under a connecting channel 16 and between the adjacent front edges of the machines 12 and 14 set up at right angles to one another there is sufficient space for the special space-saving loading device 10 according to the invention. There is thus the advantageous possibility of retrofitting such known machine combinations with the invention.

The automatically operating loading device 10, see also the cavalier perspective shown in FIG. 2, essentially consists of a bobbin changing device 18 automated according to the invention with two bobbin journals 20 and 22, a bobbin magazine 24 for a number essentially parallel to the bobbin journals 20 and 22 Papiobobins 26 which are set up one below the other and can be moved forwards, and from an automatic gripping and stripping device 30 which can be moved back and forth between the reel changer 13 and the reel magazine 24 in a guide 2B, transversely to the reel axis direction. The paper reels 26 here are generally made of plastic consist of the bobbin cores or coils 25 wound, narrow paper rolls.

The part 32 of the machine 12 connecting in the paper feed direction is already known and, in addition to a control device and a printer for attaching the cigarette brand, also contains a driven roller combination for pulling the paper tape off the bobbin thereby driven, and means for connecting the successive tape ends of bobbins 26 inserted one after the other which also includes a buffer box 34 for temporarily holding a tape supply. This supply of the paper tape, which is accumulated before connecting successive end sections of individual bobbins 26, allows the tape drive to be stopped when the tape ends are connected and the new bobbin to start up without pressure.

In the previous changing device of the known machine 12, however, the actual changing process must be carried out by hand, with the aid of a straight rail into which new bobbins are inserted at the rear and pushed forward after removal of the previously empty bobbin. This is based on the deep arrangement of the bobbin changing device under a protruding machine part, which limits the space for changing the position of the bobbins in such a way that an automatic changing process did not previously seem possible.

In the bobbin changing device 18 according to the invention, this problem is essentially solved by a closed control curve 40, which preferably also runs approximately in the form of an isosceles triangle which is turned downwards The corners run and is designed as a guide rail, see also FIG. 5, for carrier slides 42, 44 of the bobbin pins 20 and 22 which are freely rotatably mounted thereon.

In the example shown, the drive takes place during the change process by means of a motor 46 connected to the intended control and a drive chain 48 for a further chain 50, which is equally spaced on all sides from the guide rail 40 by a sprocket 52 that can be driven by the drive 46, 48 and two free-running supported toothed rollers 54, 56 is guided, and on which the carrier slides 42 and 44 of the bobbin pins 20 and 22 are fastened at the same distance on both sides. The drive chain 48 runs behind or under the guide rail 40 to a behind the gear 52 together with this drive gear.

The bobbin magazine 24 of the loading device 10 according to the invention preferably consists of a step-by-step continuous conveyor with a V-support of preferably 90, which, for. B. is formed by two belt or slat conveyors 60, 62.

The support devices 64, 66 of the conveyor 60, 62 forming the bobbin support can, as indicated by double arrows, for. B. can be adjusted in opposite directions by a common Geuindtrieb transverse to the conveying direction on a common support plate 68. This enables simple adaptation to different bobbin diameters and easy adjustment of the tolerance range of the mean diameter of the bobbins. The preferred mirror-symmetrical 45 ° inclination of the bearing surfaces of the conveyors 62, 64 also has the advantage that the symmetrical and opposite adjustment of the side and height position of the bobbin axis is maintained regardless of the bobbin diameter.

The V-pad 62, 64 of the conveyor 24 is in the shown Embodiment inclined forward by an angle α. This angle can preferably be between 3 and 8 and, in conjunction with a front stop and holding device 70, enables the bobbin 26 to be set up securely in the magazine 24 without an additional adjustable bobbin support at the rear magazine end. This arrangement has the particular advantage that the magazine 24 can be filled with new bobbins from the free back at any time and without hindrance by stops or the like.

The stop and holding device 70 has a columnar housing 72 which, for. B. is attached to the base plate 68 of the magazine 24. In the upper part of the housing, two arms 74 and 76, one behind the other in the conveying direction and pivotable essentially parallel to the winding plane, are supported at 78 and 80, if necessary, on a common shaft. The arms 74 and 76 have lever-like extensions 82 and 84 which extend beyond the bearing points 78 and 80 and on which actuators for the pivoting movement of the arms 74 and 76 act via compensating joints. These actuating members consist, for example, of double-acting pneumatic cylinders 86, 88 which can be actuated via electrically controlled valves of a machine control.

The guide 28 for the gripping and stripping device 30 runs parallel to the machine 12 and the magazine at a short distance. According to FIG. 2, it consists of two guide rods 90 and 91, which run one above the other between two lateral stop and bearing blocks 93 and 94 seated on a carrier plate 92. The carrier plate 92 can be connected to the carrier plate 68 of the magazine 24.

A cable or chain drive, for example, is provided for the controlled movement of the device 30 along the guide 28. This drive essentially consists of one at the left mounting block 9 seated electric servomotor 95, one of which can be driven Umlenkrαlle 96 and another, on the right mounting block 94 freely rotatably mounted pulley 97 for a rope or chain 98, the free ends of which on opposite sides of the device on z. B. Attack rear attachment points 99A and 998.

2, the bobbins are fed tilted forward according to the inclination of the V-support 60, 62 of the bobbin magazine 24, the device 30 moved in front of the detaching end of the magazine 24 for coaxial alignment of the gripper when picking up a full bobbin by a corresponding one Tilt angles and be erected during the movement to change the bobbin so that the gripping and stripping members in the other end position of the device 30 are aligned coaxially with the bobbin mandrel 20 rotating around a horizontal axis.

A simple way of realizing such a superimposed tilting and shifting movement of the device 30 is, for example, that the guide rods 90 and 91 run horizontally in parallel height levels, but in perpendicular planes in the direction of displacement of the device 30 in accordance with the angle of inclination of the magazine support 62, 64 diverge. 2, for example, the upper guide rod 90 runs parallel to the working plane of the bobbin changer 18. The fastening points of the two guide rods 90 and 91 in the right mounting block 94 lie vertically one above the other, while the fastening point of the lower guide rod 91 on the left mounting block 93 closer to the removal end of the bobbin magazine 24 lies as the attachment point of the upper guide rod 90. At the left end of the guide 28 there is therefore an angle α corresponding to the angle of inclination of the conveyor between the attachment points of the guide rods 90 and 91. 3 and 4 show the basic structure of an advantageously simple embodiment of the gripping and stripping device 30 according to the invention.

2 has a guide bore 102, which can be lined, for example, with ball bearings 104, which ensure that the device 20 runs smoothly on the guide rod 90, see FIG. 2.

Two further rollers 106 and 108 arranged on the underside of the carrier slide are provided as further guide elements, which interact with the guide rod 91, see FIG. 2. The downwardly open side guide formed by the rollers enables a stiffening bzu. Support the lower guide rod 91, the z. B. can be formed by the upper edge of a perpendicular upright from the support plate 92 web. Instead of an already explained cable or chain drive for the device 30, a controllable electric motor 110 can be provided as a direct drive for the roller 108 interacting with the guide rod 91 in the lower part of the carrier slide according to FIG. 4. A tooth engagement between the roller 108 and the guide rod 91 ensures extremely high drive accuracy.

A carrier plate 112 can be moved back and forth on the carrier carriage 100 by means of an adjusting device 114, 116 engaging between the carrier carriage and carrier plate. The carrier plate 112 carries a gripping device 120 fastened thereon with a supporting base part 118, which is moved back and forth together with the carrier plate when the carrier plate is adjusted.

An advantageously simple embodiment of the gripping device 120 consists of a two-part mandrel, the lower part 122 of which is connected to the support part 118. The upper part 124 of the inner gripper 120 is double acting de adjusting device 126, 128 connected to the support part 118 of the lower part 122 and can be bent up and down relative thereto. A section 130 that can be moved with the upper part of the inner gripper 120 enables guidance with a vertical guide rail 132 in a guide element 134 connected to the lower part 118, 122.

Furthermore, support members 136 and 138 are arranged on the support plate 112, which can be displaced transversely to their direction of flexion and can be actuated in opposite directions by adjusting devices 138, 140 or 142, 144. Adjusting devices 146, 148 and 150 seated on the carrier organs 136 and 138 carry gripping and stripping members 152 and 154 arranged symmetrically on both sides of the clamping device 120, the method of operation of which will be explained below.

5 finally shows the basic structure of a possible embodiment for one of the correspondingly constructed bobbin carriers of the changing device 18 according to the invention. The bobbin journal 22 shown is mounted with the aid of a bearing 156 in a freely rotating manner on an axis 158 projecting from the carrier carriage 44. The roller 22 has an edge flange 160 projecting from the rear edge as a stop for a slid-on bobbin and a latching device for holding the slid-on bobina, which is temporarily released when the bobbin is pushed on and removed by the inner gripper 120 which has been moved up.

The locking device consists, for example, of three or four locking elements 161 arranged uniformly distributed on the circumference of the roller, which can be pivoted in axially parallel recesses 162 of the roller about axes arranged transversely to the roller axis 158 and have a nose-like locking projection which, in the locking position, has an opening in it Urafangsfläche the roller 22 protrudes. Every Rastala ment 161 is normally held by a biasing spring 163 in the latched position shown, from which it can be pivoted into a release position by actuating an adjusting mechanism 164, 166 which is freely accessible from the front in front of the roller end face.

The bias spring 163 may e.g. B. be a compression spring that lies between the inner end of the circumferential recess 162 and an eccentric point of attack on the side of the locking element 161 opposite the shoe axis of the locking element.

The actuation mechanism is, for example, a rod 164 protruding from the front open end of the recess. An annular disc 166 connects the protruding free ends of the actuation rods 164 of the various latching elements 161. The common actuating ring 166 permits uniform actuation of all latching elements 161 and also prevents a risk to the operation and the personnel monitoring the operation by projecting parts of the rotating bobbin pins or rollers 20, 22. If the inner gripper 120, which is brought up against the mandrel or pin 22, presses with its ring-shaped end face onto the ring 166, the latching lugs 161 are pivoted into their pivoted-back position against the force of the return spring 163. When ring 166 is released, the locking lugs automatically pivot under the action of the return spring into the position shown, in which the edge of the circumferential opening forms a stop limiting the pivoting movement.

The carrier carriage 44 has on the underside of a main carrier plate 168 bearing and fastening elements 170 to 174 for the drive chain 50 fastened to the carriage, see FIG. 2, and for running wheels 176 and 178, with which the carriage is guided on the guide rail 40 via supporting spacers 180 on the front of the Machine is attached. A particularly reliable guidance of the slide results if two running wheels are provided on at least one side of the rail, so that there is a safe three-point contact with the running rail 40. The opposite wheels 176 and 178 can be arranged so as to be movable relative to one another on the carrier plate 168 of the carriage 44 and can be held in secure contact with the guide rail by tension springs 182.

The automatically controlled mode of operation of the loading device according to the invention is explained below.

The gripping and stripping device 30 is moved along the guide 28, see FIG. 2, to the left before the removal end of the bobbin magazine 24. The two-part inner gripper 120 is moved in its contracted position by the control device 114, 116, with the carrier plate 112 into the core bore of the foremost bobbin 26 and clamped by means of the control device 126, 128. At the same time, the stop arm 74 of the device 70 is pivoted upward, so that the first bobbin is removed from the magazine when the gripper 120 moves back.

The device 30 is then moved on the guide 28 to the right in front of the empty bobbin pin 20 located on the left in FIG. 2. The inner gripper 120 with the clamped, full bobbin is axially aligned with the bobbin pin 20 until it is advanced. The locking lugs 161 are pivoted into their release position by the inner gripper hitting the ring 166, as described above. The lateral wipers 152, 154 with the control devices 146 to 150 are moved forward and wipe the bobbins from the mandrel 120 onto the bobbin pin 20 as soon as the mandrel 120 is moved by abrupt movement of its upper part 124 is pulled together again and releases the open bobbin. The carrier plate 112 is now withdrawn with the gripping and stripping members. The annular disc 166 is released so that the locking lugs 161 move into their locking position according to FIG. 5 and hold the bobbin securely.

As soon as the bobbin 25, 26, which is placed fully automatically on the mandrel 20 of the bobbin changing device in this way, has partially expired, the motor 46, for example a brake motor with worm gear, is switched on in order to initiate the changing process of the two bobbin pins 20 and 22. With an initial diameter of the bobbin of 500 mm, the changing process is initiated, for example, with a diameter of approximately 400 mm, which is detected either optically or with a brake and feeler lever that is already present on the cigarette machine in order to trigger the control signal for starting the motor 46.

At the end of the changeover process, an empty bobbin 25, which has run down to a small papiary residue and is seated on the bobbin pin 22, and a bobbin 25, 26 running on the pin 20 at the time have exchanged their working positions shown in FIG. 2. The elements 152, 154, which previously pressed onto the surface of the papiarucle when a full bobbin was applied as a wiper, now act as external grippers, which are brought to the empty bobbin core 25 from the outside by means of the control devices 138, 140 and 142, 144 and clamp them in place. The locking devices 161-166 are temporarily released again to release the bobbin core. When the support plate 112 is then moved back, the empty bobbin core 25 clamped between the grippers 152 and 154 is then pulled off the pin 22. The device is then bent back to the magazine on the guide 28. In this way, the empty bobbin 25 is dropped or dropped by moving the grippers 152, 154 apart between the machine 12 and the bobbin magazine 24 in a storage container 36 which may be provided there, see FIG. 1.

After the collection of the first full bobbin from the removal end of the bobbin magazine 24 as described above, the row of bobbins 26 set up in the magazine has now been moved forward by one bobbin thickness. For this purpose, the arm 74, pivoted up as a function of a signal from the sequence control for releasing the first removed bobbin, was pivoted back into its position shown in FIG. 2 as a stop in the path of the bobbin before the holding arm lying on the second bobbin, which when the Row of bobbins prevented from tilting or slipping of the subsequent bobbin by the arm 24, pivoted up and the bobbin conveyor 60, 62 was moved forward by a bobbin thickness up to the stop 74. After this conveying step, the holding arm 76 behind the bobbin now abutting the stop 74 was also pivoted back onto the circumference of the subsequent bobbin and thus forms a securing means relieving the stop arm 74 against further advancement of the bobbins standing on the inclined bobbin support. In this starting position, the next bobbin, as described above, is now removed from the front removal end of the bobbin magazine and moved to and pushed onto the bobbin mandrel 22, which is now in the front working position, before the bobbin, which has in the meantime run empty, and the next full bobbin are removed after another changing operation is picked up.

The various functions of the loading device according to the invention are triggered with the aid of an automatic sequence control, depending on, for example, mechanical, electrical, magnetic Control signal generators, some of which may already be present on the machines equipped according to the invention. In this case, electrical, electromagnetic or corresponding actuators can also be provided for the pneumatic actuators used in devices 30 and 70 in the present exemplary embodiment, if this is desired. In the embodiment shown, however, pneumatic actuators have the advantage that a compressed air source which is already present in the machine equipped according to the invention can be used for their operation. The compressed air connections, not shown, on the opposite piston sides of the pneumatic actuators are actuated via electrically known control valves of an electropneumatically operating sequence control, which are known per se.

Naturally, modifications of the exemplary embodiment shown are also possible, if this is desired. So z. B. the part of the carrier carriage 100 of the device 30, see FIG. 4, which carries the cylinder 114 of the adjusting device for the carrier plate 112, can also be raised and lowered vertically with respect to the remaining part by a further interposed adjusting device, if this is necessary, for example, for centering the Picking up a bobbin from the magazine or when placing and removing the bobbin from a bobbin pin 20 or 22 of the bobbin changer 18 is desired. With the bobbin changer 18, which operates according to the invention with a precise chain drive for the identically constructed bobbin carriers 20, 42, and 22, 44, and the possibility of dusting the conveyor support 62, 64 of the bobbin magazine 24, such an additional control movement of the device 30 can be saved. The high working accuracy of the described embodiment also contributes to the fact that the axes of the bobbins placed one behind the other on the magazine and the axis of the respective one in the front working position shown on the left in FIG are at the same height, so that a precise parallel guidance of the device 30 is possible. Furthermore, a controlled possibility of adjustment of the reel 22 in the direction of the axis 158 can also be provided in order to ensure an exact lateral adjustability of the paper flow in the cigarette machine 12.

Claims

Expectations

Method for continuously feeding a paper strip fan or tape wound on bobbins to a machine of the tobacco processing industry with a bobbin changing device for two bobbin pins running alternately in one of two predetermined working positions, characterized in that a number of full bobbins outside the working surface of the bobbin changing device are essentially parallel to it the working plane of the changing device aligned in a coaxial row one behind the other, gradually moved forward, individually taken in their foremost position, moved to a plane parallel to this, approximately in front of the working plane of the changing device, and in this plane in front of an empty bobbin pin of the bobbin changing device are moved and pushed onto it before the working positions of the full and the now expired bobbin are exchanged in a subsequent changing process, the expired B obine is then withdrawn from its spigot and discarded on the return path to the bobbin supply row between the bobbin changing device and the storage row corresponding to the way of the full bobbin, before the next bobbin is picked up from the storage row and brought to the empty bobbin spigot of the changing device.

Method according to claim 1, characterized in that the full bobbins in the supply row are moved forward in a position inclined somewhat forwards with respect to the working plane of the bobbin changing device, removed in the inclined position and erected into a position parallel to the working plane thereof during the transverse relationship to the working plane and then be pushed onto the empty bobbin cone. Method according to claim 1 or 2, characterized in that the bobbins of the changing device are moved past one another during the changing process along a closed guide curve, the partially expired new bobbin being moved forward in a raised position in the paper running direction, while the previously empty bobbin is initially gradually descending and down then gradually moved back upwards under the running bobbin to the working position previously occupied by it.

Device for the automatic loading of a machine of the tobacco processing industry with a paper roll rolled up on a number of bobbins, which is continuously fed to the machine via a bobbin changing device, the changing device having two bobbin pins freely supported on support elements, the predetermined working positions of which are exchanged with each change before they are changed an empty bobbin is removed and a full bobbin is applied, in particular for the automatic implementation of a method according to one or more of the preceding claims, characterized by an automatically controllable conveying device with an outside of the working surface of the bobbin changing device (18), which consists of a with the working plane of the Bobbin changing device essentially coinciding plane transversely backwards extending bobbin magazine (24) for one behind the other in a coaxial row provided full paper bones (26) and with a gripping and pulling device (30), which for removing empty bobbins from and feeding full bobbins to the bobbin changing device along one with low ab stood in front of the working level of the changing device (18) and the front removal end of the bobbin magazine (24) arranged guide (28) between the removal end of the bobbin magazine and a predetermined working position of a bobbin pin (20, 22) of the changing device is movable,

Device according to claim 4, characterized in that the gripping and pulling device (30) has a carrier slide (100) which can be moved on the guide (28) which runs essentially parallel to the working plane of the changing device (18) and on which, optionally transversely to the direction of displacement, jointly or separately adjustable gripping and stripping members (120, 122, 124, 152, 154) are arranged with an adjustment path bridging the distance from the working plane of the changing device, the stripping members (152, 154) being additionally adjustable for performing a gripping movement.

Device according to claim 4 or 5, characterized in that the gripping and stripping device (30) has a split mandrel (120) adjustable as an internal gripper on the carrier slide and transverse to the guide movement, the parts (122, 124) of which are radial relative to one another are adjustable, and that laterally arranged from the mandrel gripping and stripping members (150, 152) parallel to the axis of the mandrel and radially adjustable.

Device according to claim 4, characterized in that the Bobineπmägaziπ (24) has a freely accessible rear, sloping forward support surface (60, 62) for the bobbins and that at the removal end a holding and stop device (70) for the controlled release of the foremost Bobine while holding the bobbins lined up behind is provided.

Device according to claim 4 or 7, characterized by a continuous conveyor (24) with a step-by-step V support (60, 62) as a bobbin magazine.

Device according to claim 8, characterized in that the lateral spacing of the 90 ° V support (60, 62) can be adjusted symmetrically by adjusting the opposing conveyors (60, 64, 62, 66) in opposite directions.

Device according to claim 4 or 5, characterized in that the guide (28, 90 to 98) of the gripping and stripping device (30) is arranged and designed in such a way that the device (30) tilts back from a position corresponding to the inclination of the reel magazine (24) during the movement in front of the empty bobbin pins (20, 22) it is automatically erected into a position parallel to the working plane of the bobbin changing device.

Device according to claim 4, characterized in that the bobbin changer (18) has a closed guide rail (40) on which a partially expired bobbin can be shifted slightly raised from its working position in the direction of travel of the strip into the second working position, while at the same time the empty bobbin from the second Working position on the guide curve is lowered and raised to the first working position.

Device according to claim 11, characterized by a chain drive (46 to 50) of the bobbin changing device with an equally uniform distance within the guide curve (40) around gear wheels (52 to 56), one of which (52) over one on a common drive wheel fastened on the saman axis is coupled to a servomotor (46), guided chain (50), which supports the carrier carriages (42, 44) of the bobbin journals (20, 22), which are mounted thereon and can be moved on the guide rail (40). connects with the same distance (40) on both sides.

Device according to claims 4 and 12, characterized in that the bobbin pins (20, 22) of the changing device (18) have a latching device (161 - 166) which can be temporarily released from the automatically locking position by the gripping device (30, 120) which is moved against the end face thereof. exhibit.

Device according to claim 14, characterized in that the latching device (161-166) has latching elements (161) which are automatically held in the locking position by a return spring and which are actuated eccentrically on the end face of the bobbin journal (20, 22) by an adjusting mechanism (164, 166 ) can be swiveled into a release position.

Device according to claim 14 or 15, characterized by a locking device (161-166), with locking elements evenly distributed in the circumferential direction of the bobbin pin (20, 22), which are resiliently pre-tensioned via a common, annular actuating element (166) of the adjusting mechanism (164) Locking position are releasable.