EP0475395B1 - Apparatus for reclaiming tobacco from defective cigarettes and method for its realisation - Google Patents

Apparatus for reclaiming tobacco from defective cigarettes and method for its realisation Download PDF

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Publication number
EP0475395B1
EP0475395B1 EP91115398A EP91115398A EP0475395B1 EP 0475395 B1 EP0475395 B1 EP 0475395B1 EP 91115398 A EP91115398 A EP 91115398A EP 91115398 A EP91115398 A EP 91115398A EP 0475395 B1 EP0475395 B1 EP 0475395B1
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EP
European Patent Office
Prior art keywords
drum
cigarettes
trough
cigarette
tobacco
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP91115398A
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German (de)
French (fr)
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EP0475395A1 (en
Inventor
Horst Furmanski
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Philip Morris Products SA
Original Assignee
Fabriques de Tabac Reunies SA
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Application filed by Fabriques de Tabac Reunies SA filed Critical Fabriques de Tabac Reunies SA
Priority to AT91115398T priority Critical patent/ATE98444T1/en
Publication of EP0475395A1 publication Critical patent/EP0475395A1/en
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Publication of EP0475395B1 publication Critical patent/EP0475395B1/en
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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/36—Removing papers or other parts from defective cigarettes

Definitions

  • the invention relates to a device for tobacco recovery from defective cigarettes and to a method for operating the same.
  • the device has a storage magazine for defective cigarettes, a separating and transport device with a trough drum rotating about its axis, which has a number of trough-shaped depressions that are regularly distributed over the circumference, a fixing device for the singled cigarettes, a compressed air supply device that holds the tobacco inflates from the respectively fixed cigarettes, a receiving device for the blown-out tobacco and separately from this for the cigarette tubes, and an operating control device for the coordinated control of the devices of the device.
  • the filter cigarettes coming from the storage magazine for the defective cigarettes are separated on the bowl drum and transported further in the circumferential direction when the bowl drum is rotated.
  • a movable block which has fitting pieces on the mouthpiece parts of the filter cigarettes, at least one cigarette lying on the circumference of the hollow drum is gripped and held with its mouthpiece part, and then compressed air is blown through, so that the tobacco of the filter cigarette is ejected from the cigarette tube and transported to an associated tobacco collection facility.
  • the cigarette tubes with the associated mouthpiece parts and the filter are switched on when the Dump drum transported to an associated, further collection facility.
  • At least one further drum is provided, which is also designed as a trough drum and is arranged axially parallel at a distance from the first trough drum.
  • This second bowl drum rotates in the opposite direction to the first bowl drum.
  • a third trough drum can also be provided, which presses the filter cigarettes to loosen the tobacco filling.
  • the device also comprises two drums rotating in opposite directions, which are provided axially parallel and which have troughs on their circumference, each of which holds a cigarette.
  • a device for supplying compressed air is also provided, which directs compressed air against the tobacco in the cigarette tubes of the individual cigarettes, and a drum can be provided which is provided with air lines which, in turn, cover with successive troughs during the rotational movement to cover them Dump drum come. Compressed air can thus be directed via the lines against the tobacco in the successive cigarettes.
  • the lines can be designed as hollow needles that are transverse to the axis of the cigarettes are displaceable in the recesses against the cigarette tube, so that the needles also form a fixing device for the cigarettes.
  • the cigarette tubes and tobacco and any filter parts that may be present are collected and collected in separate containers.
  • the invention aims to provide a device for tobacco recovery from defective cigarettes and a method for operating the same which overcomes the above-described difficulties and which allows a quick and reliable separation of cigarette tubes, optionally the filter part, and tobacco in a fully automatic manner.
  • a bowl drum is provided for separation and for further transport, which is followed in axial extension by a perforated drum rotating in the same direction, which has receiving bores into which the cigarettes separated on the bowl drum can be completely introduced, so that afterwards a fixation with the aid of compressed air, the tobacco can be blown out of the cigarette tube and, after the fixing device has been loosened, the cigarette tube can optionally be ejected from the receiving bore with the filter part attached to it by means of a further pressure application and transported to the assigned collection and receiving device.
  • This arrangement of trough drum and perforated drum, which form a rotating unit, can be achieved in connection with the control device formed by a control ring that during a complete revolution of this unit in one predetermined workflow, the cigarettes are separated, fixed and the tobacco is blown out of them, the movable devices of the device ensuring reliable cooperation, since there is a synchronous synchronization of the bowl drum, perforated drum and control ring of the control device. Therefore, with the aid of the device according to the invention, the tobacco can be reliably recovered from defective cigarettes in a fully automatic manner during the execution of a rotary movement of the two drums forming a movement unit. With the aid of the device according to the invention, high output rates are achieved during the continuous rotation of the two drums forming a movement unit.
  • each receiving bore in the perforated drum is assigned two axially spaced fixing needles, so that relatively high blowing pressures for blowing out the tobacco from the cigarette tubes can be used to improve the performance of the device, since the cigarette is reliably held at a distance from its mouthpiece part by the two fixing needles is.
  • a guide ring which surrounds the perforated drum and is fixedly connected to it, is preferably provided to act upon the fixing needles in the direction of their fixing position, in which a pressurizing device in the form of roller bolts is arranged for each fixing needle or pair of fixing needles.
  • a curve control which can be formed by a curve piece
  • the roller bolts are displaced for fixing, and the fixing needles remain in their fixing position at least during the blowing out of the cigarettes by means of the curve piece.
  • control ring is resiliently mounted in the axial direction of the perforated drum in such a way that it bears against the end face of the perforated drum which faces away from the hollow drum and serves as a stop device for the depth of penetration of the cigarettes into the receiving bores.
  • This control ring is designed as a type of slip ring that is constantly pressed against the end face of the perforated drum in order to prevent it from lifting off from the perforated drum under the alternating negative and positive pressures.
  • control ring in this design serves as a stop device, by means of which the cigarettes always lie reliably, regardless of their length, with their mouthpiece part so far inside the receiving bores of the perforated drum that the fixing device can reliably hold the relevant cigarette.
  • the device is designed such that the control ring during a complete revolution at least a predetermined angular zone as a control zone for applying a negative pressure for sucking in the cigarettes into the receiving bores and an angular zone as a control zone for introducing compressed air to blow out the tobacco passes out of the cigarette tubes in the receiving holes.
  • openings are preferably provided, via which a connection can be established with an associated compressed air supply device or a suction pressure generating device. The corresponding size of the openings in the angular direction can then be used to determine the time in connection with the rotational speed of the rotating unit of the two drums during which suction pressure or overpressure acts on the cigarettes in the receiving bores.
  • the control for the work steps to be carried out on the device also takes place via a control device which is effective in the sense of rotation, so that all movement sequences can be controlled directly during the rotary movement.
  • the control ring can preferably have a further angular zone as the control zone, at which compressed air is introduced, which ejects the empty cigarette tubes, on which the filter parts are optionally provided, from the receiving bores, this further angular zone preferably adjoining the control zone when viewed in the direction of rotation of the control ring , during which the tobacco is blown out of the cigarette tubes by means of compressed air.
  • control device further comprises a clock disc, which determines the work cycle, which is arranged at an axial distance from the control ring and controls the further control devices of the device.
  • this clock disk With the aid of this clock disk, the individual devices of the overall device to be controlled can be coordinated in a predetermined manner.
  • a particularly preferred embodiment is obtained when the trough drum and the perforated drum are arranged on a common rotary shaft, the control ring and the timing disk possibly also being provided on this common shaft. If such a common shaft is provided in the device, the two drums, the control ring and possibly the clock disk are reliably synchronized, so that the device can be operated reliably.
  • inclined drainage slopes are preferably provided at the transition between the respective trough-shaped depressions of the trough drum and the receiving bores in the perforated drum. This ensures that even with slight misalignments due to Manufacturing tolerances, the cigarettes separated on the trough drum are reliably sucked into the assigned receiving bores.
  • a deflecting polygonal roller can be assigned to this axis-parallel, which preferably rotates in the same direction as the bowl drum. This allows the separation process to be carried out more quickly, so that the device can be operated at higher working speeds.
  • the trough drum and the perforated drum connected to it in a rotationally fixed manner and the deflecting polygonal roller are driven by a common drive device.
  • the device is suitable for filter cigarettes, i.e. H. for those cigarettes that have a filter attachment on the mouthpiece part.
  • a sensor for monitoring the occupancy of the receiving bores in the perforated drum is provided, which deactivates the device in the absence of a cigarette in the receiving bore.
  • the device can have a preferably photoelectrically operating detection device which detects the cigarettes to be blown out and at the same time counts them.
  • the method can also be designed such that a compressed air blast is brought into effect again via the control ring before the start of a further working cycle, so that the receiving bores in the perforated drum are blown free of impurities in order to achieve trouble-free further operation of the device.
  • the device 1 can be designed as a location-independent unit to be operated on a frame or as a table model.
  • a substantially horizontal base plate 2 which can be made of aluminum, for example, a substantially vertical bearing plate 3 is attached.
  • This bearing plate 3 also serves as a partition between the drive and control unit and the moving parts of the device 1.
  • a drive motor 4 is flanged to the rear of the bearing plate 3 and drives a drum combination 5 arranged on the front of the bearing plate.
  • the drum combination 5 comprises one on a common shaft 6 seated bowl drum 7 and a perforated drum 8.
  • the shaft 6 runs essentially horizontally.
  • the trough drum 7 has trough-shaped depressions 9 which are distributed regularly over its circumference and are provided, for example, in a number of 24.
  • a deflecting polygonal roller 10 is arranged axially parallel to the trough drum 7.
  • the deflection polygonal roller 10 is driven with the aid of a motor 11 in the opposite direction to the trough drum 7, as is shown in particular by arrows in FIG. 2.
  • the hollow drum 7 is followed by the perforated drum 8, which is rotatably connected to the hollow drum 7, for example via a screw and pin connection 12, 13, so that the two drums 7 and 8 rotate in the same direction and synchronously around the common shaft 6 .
  • the perforated drum 8 has axially aligned with the trough-shaped recesses 9 of the trough drum 7 receiving holes 14 which extend through the perforated drum 8 in the axial direction.
  • receive holes 14 which extend through the perforated drum 8 in the axial direction.
  • run-off slopes 15 are provided, which are inclined in the direction of the receiving bores 14 in order to compensate for tolerance-related and unavoidable misalignments.
  • the number of receiving bores 14 corresponds to the number of trough-shaped depressions 9 on the trough drum 7.
  • the receiving bores 14 are also dimensioned such that a cigarette with a mouthpiece can be completely received, as is shown, for example, in FIG. 2 of the drawing.
  • a cigarette with a mouthpiece and filter insert is designated 16 there.
  • a fixing device 17 is assigned to the mouthpiece area of the cigarettes in the receiving bores, which in the example shown comprises two fixing needles 18 per receiving bore 14. These fixing needles are each biased by springs 19 in the direction of their disengaged position shown in FIG. 1. 1a, the fixing needles 18 pass through assigned radial openings 20 in the perforated drum 8. On the outside, this area of the perforated drum 8 is surrounded by a guide ring 21, which is firmly connected to the perforated drum 8. With reference to FIGS. 1 a and 2, pressure bolts 22 or roller bolt radially are movably arranged in this guide ring 21, each of which carries rollers 23 at their outer end.
  • roller pin 22 acts on the fixing needles 18 of the fixing device 17, and each pair of fixing pins 18 is assigned a roller pin 22 in the guide ring 21.
  • a curve segment 24 is attached to the base plate 2, on which the rollers 23 of the roller bolts 22 can roll, and which acts on the roller bolts 22 in the region of the curve segment 24 such that by means of the roller bolts 22, the respectively associated fixing needle pairs 18 are brought into their fixing position (see FIG. 2), in which they are inserted into the mouthpiece area of the cigarette 16, in particular the filter part.
  • control ring 26 At the rear 25 of the perforated drum 8 there is a control ring 26 which can be moved axially slightly by means of a spring and bolt device 27, but is always acted upon by the spring and bolt device 27 such that it is in constant contact with the rear 25 of the perforated drum 8 is.
  • the detailed training details of the control ring 26 are explained below with reference to FIG. 3.
  • a storage magazine 28 for defective cigarettes is arranged somewhat above and to the side of the trough drum 7, the shaft length of the storage magazine 28 being able to be adjusted to the length of the cigarettes to be processed.
  • a discharge device 29 is provided below the storage magazine 28 for the cigarette tubes 30 blown free of tobacco with the aid of the device 1.
  • the discharge device 29 is formed by a discharge chute 31, via which the cigarette tubes 30 are conveyed to a collecting device for the cigarette tubes, which is not shown in detail.
  • the front end face 32 of the perforated drum 8 is a discharge device 33 assigned to the blown tobacco.
  • the discharge device 33 is formed by a flexible pipe piece 34 which bears against the front end face 32 of the perforated drum 8 in the region of the receiving bores 14 thereof. Via this discharge device 33, the tobacco blown out with the aid of the device 1 can be conveyed into a collecting device, not shown, which is expediently provided below the base plate 2 of the device 1.
  • a sensor 35 is schematically indicated in FIG. 2, which monitors the occupancy of the receiving bores 14 with cigarettes 16. This sensor 35 can then put the device 1 out of operation if it detects that there is no cigarette in the receiving bore 14. The device 1 can then be serviced and then put back into operation.
  • control ring 26 is divided into several angular zones, which serve as control zones.
  • the control ring 26 comprises the angular ranges or angle zones 41 to 48.
  • the work flow of the device 1 is controlled via these angle zones, and the control ring 26 forms an essential part of the control device provided in the device 1 according to the invention.
  • the angular zone 41 in the area of which no opening is provided, it is intended for the beginning of a work cycle in which defective cigarettes 16 'in the storage magazine 28 fall onto the bowl drum 7 and with the aid of the separating and transport device 36, which the bowl drum 7 and the repellent polygonal roller 10, into the trough-shaped recesses 9, the depth of which corresponds approximately to the diameter of a cigarette 16 '. With the help of the trough drum 7, the cigarettes 16 'are then transported clockwise in the circumferential direction.
  • the cigarettes 16 'lying in the trough drum 7 are moved over the bevels 15 in the direction of the receiving bores 14 of the perforated drum 8 in such a way that the mouthpiece part of the cigarette 16' moves slightly, for example, by a distance of 8 mm within the receiving bores 14 is located.
  • An opening 43 ′ which is expediently formed by a kidney-shaped cutout, is provided in the region of the angular zone 43.
  • This opening 43 ' is a suction pressure or a vacuum via a device, not shown, so that the slightly inserted into the receiving bore 14 cigarette 16' is sucked into the receiving bore 14 until its mouthpiece abuts the control ring surface, which at the same time as Anchor device serves.
  • the strength of the suction pressure can be adjusted.
  • a further kidney-shaped opening 44 ' is provided, which is also preferably designed as a cutout and via which a suction pressure is applied. This suction pressure is stronger than that in the angular zone 43, so that the vacuum output can be increased. With this increased vacuum output, even strongly deformed cigarettes 16 'can be reliably sucked into the receiving bore 14 until they rest against the control ring 26.
  • an opening 45 ' is provided, which is designed as an elongated through opening. Behind this opening 45 'there is a photoelectric detection device 37, which has, for example, the sensor 35 in FIG. 2, which detects the cigarette 16 located in the receiving bore 14 and can count if necessary.
  • an opening 46 ' is provided, which is formed by a kidney-shaped cutout.
  • a compressed air supply device not shown.
  • the cigarette 16 is fixed in the receiving bore 14 with the aid of the fixing device 17.
  • the tobacco 38 located in the cigarette tube 30 is blown out and conveyed via the discharge device 33 to the associated collecting device.
  • control ring 26 is pressed against the rear side 25 of the perforated drum 8 in the area of this angular zone 46 by means of a single-acting short-stroke cylinder in order to counteract the increased blow-out pressure, so that the control ring 26 does not move can lift off the rear 25 of the perforated drum 8.
  • an opening 47 ' which is designed in the form of a kidney-shaped cutout and is connected to a pressurization device. Compressed air is blown into the receiving bore 14 via the connection thus produced, so that the empty cigarette tube 30, which may have a mouthpiece part with a filter, is blown out of the receiving bore 14 and conveyed to the associated discharge device 29.
  • an opening 48 ' is provided, which is designed as a kidney-shaped cutout and which can likewise be connected to a compressed air application device.
  • Opening 48 'for pressurized air the receiving bores 14 are freed of tobacco residues or residues of the cigarette tube 30 that may have adhered. In this way, contamination of the receiving bores 14, which could lead to a malfunction of the device 1, can be avoided.
  • the drive motor 4 for the trough drum 7 and the perforated drum 8 seated on the shaft 6 is axially spaced apart.
  • a tachogenerator 50 is associated with the drive motor 4 and cooperates with the shaft 6 for speed control thereof.
  • a clock disk 51 is seated on this shaft 6 in FIG. 1 in the direction to the right behind the tachometer generator 50, which is provided there adjustable.
  • This clock disk 51 is shown in more detail in FIG. 4 of the drawing and works together with a proximity initiator 52, which determines the exact working cycle of the device 1 via the control unit (not shown in more detail) in connection with the clock disk 51.
  • the timing disk 51 has tooth-shaped projections 53 and depressions 54 which are regularly distributed over the circumference and are delimited between two adjacent tooth-shaped projections 53.
  • the clock disk 51 is also provided concentrically with the central axis of the shaft 6 with a circular arrangement of holes 55 which are arranged at regular angular intervals and have the same dimensions. In the example shown, eight such holes 55 are provided.
  • the device 1 for tobacco recovery from defective cigarettes explained above with reference to FIGS. 1 to 4 is operated according to a further idea according to the invention in the manner described in more detail below.
  • this operating method is a preferred procedure for operating the device 1, and numerous changes can be made with regard to the workflow, which can be coordinated with the can make any desired circumstances without further notice.
  • the essential components in the device 1 according to the invention include a control device 56, the above-described clock disk 51, the associated proximity initiator 52, the control ring 26 and the cam segment 24, via which the pressure bolts 22 in the guide ring 21 are acted upon.
  • the separating and transport device 36 comprises the bowl drum 7 and the rejecting polygon roller 10 cooperating therewith.
  • the filter cigarettes 16 ′ thus separated are transported further in the trough-shaped depressions 9 in the circumferential direction.
  • a predetermined time which is determined by the angular range of the angular zone 41 of the control ring 26, the isolated filter cigarettes 16 'are inserted slightly from the trough-shaped depressions 9 of the trough drum 7 into the receiving bores 14 of the perforated drum 8.
  • a negative pressure or suction pressure is then applied to the receiving bores 14 via the opening 43 ′ in the angular zone 43 of the control ring 26 in order to suck up the isolated cigarette 16 into the receiving bore 14.
  • the control ring 26 determines via the through opening 45 ′ in the angular zone 45 of the control ring 26 and the sensor 35 whether or not there is a cigarette 16 in the receiving bore 14.
  • the control ring 26 then rotates further, and via the opening 46 'in the angular zone 46, compressed air is applied with the aid of an overpressure or blowing pressure which is directed in the axial direction onto the receiving bore 14 and acts there.
  • the tobacco is blown out of the cigarette 16 fixed in position with the aid of the fixing device 17 and is conveyed to the discharge device 33 for the tobacco with the aid of the blowing pressure.
  • the device 1 according to the invention enables a continuous recovery of tobacco from defective cigarettes while realizing a fully automatic, controlled workflow, so that the device 1 according to the invention can be used to quickly and reliably recover the tobacco of a large number of defective cigarettes which can then be used in cigarette manufacture after intermediate processing.
  • the device 1 according to the invention it takes about 100 seconds for about 100 cigarettes to recover the tobacco and separate the empty cigarette tubes for this purpose.
  • the device 1 also enables a gentle separation of the cigarette tube 30 and the tobacco portion, so that a reliable check of the required product quality is achieved. This enables the quality requirements to be secured and significantly improved.
  • microprocessor controls and the like can be used in order to achieve a faster and more compact evaluation of the data and signals essential for the control of the workflow.

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Abstract

On the one hand, the invention provides an apparatus for reclaiming tobacco from defective cigarettes, in which there is provided coaxially relative to a recessed drum (7) a perforated drum (8) having receiving bores (14) for the defective cigarettes (16) to be processed, said perforated drum (8) rotating in the same direction as the recessed drum. Via a control device which comprises, in particular, as the essential part a control ring (26) connected fixedly in terms of rotation to the perforated drum, various pressure applications are then carried out via a timing disc (51) under the control of the work cycle, in order to blow the tobacco out of the defective cigarette and then subsequently to blow the empty cigarette tube (30) out of the receiving bore. Furthermore, a suction pressure is applied to the receiving bores of the perforated drum, in order, before the blowing-out operations, reliably to suck the defective cigarette to be processed into a predetermined stop position in the receiving bores. By means of a fixing device (17), the cigarettes are held firmly in the receiving bore before the blowing pressure for blowing out the tobacco is applied. After the fixing is released, the cigarette tube is then conveyed out of the receiving bore to a separate blowing-out device by means of a blowing pressure applied via the control ring. <??>Also, the invention provides a method for operating such an apparatus, which allows a fully automatic work cycle in the apparatus for reclaiming tobacco from defective cigarettes. <IMAGE>

Description

Die Erfindung bezieht sich auf eine Vorrichtung zur Tabakrückgewinnung aus fehlerhaften Zigaretten sowie auf ein Verfahren zum Betreiben derselben.The invention relates to a device for tobacco recovery from defective cigarettes and to a method for operating the same.

Aus EP-A 0 192 372 sind ein Verfahren und eine Vorrichtung zum Ausstoßen des Tabaks aus Filterzigaretten bekannt. Die Vorrichtung weist ein Vorratsmagazin für fehlerhafte Zigaretten, eine Vereinzelungs- und Transporteinrichtung mit einer sich um ihre Achse drehenden Muldentrommel, die eine Anzahl von über den Umfang regelmäßig verteilte, muldenförmige Vertiefungen hat, eine Fixiereinrichtung für die vereinzelten Zigaretten, eine Druckluftbeaufschlagungseinrichtung, die den Tabak aus den jeweils fixierten Zigaretten bläst, eine Aufnahmeeinrichtung für den ausgeblasenen Tabak und getrennt zu diesem für die Zigarettenhülsen, und eine Betriebssteuereinrichtung für die abgestimmte Steuerung der Einrichtungen der Vorrichtung auf. Mit Hilfe dieser Vorrichtung werden die vom Vorratsmagazin für die fehlerhaften Zigaretten kommenden Filterzigaretten auf der Muldentrommel vereinzelt und bei der Umdrehung der Muldentrommel in Umfangsrichtung weitertransportiert. Mit Hilfe eines beweglichen Blocks, der auf die Mundstücksteile der Filterzigaretten passende Ansatzstücke hat, wird wenigstens eine entsprechend auf dem Umfang der Muldentrommel liegende Zigarette mit ihrem Mundstückteil erfaßt und festgehalten, und dann wird Druckluft durchgeblasen, so daß der Tabak der Filterzigarette aus der Zigarettenhülse ausgeworfen und in eine zugeordnete Tabaksammeleinrichtung befördert wird. Die Zigarettenhülsen mit den zugeordneten Mundstückteilen und dem Filter werden bei der Weiterschaltung der Muldentrommel zu einer zugeordneten, weiteren Sammeleinrichtung befördert. Bei dieser Vorrichtung und dieser Verfahrensweise bereiten die Abstimmung der Bewegungen der einzelnen Einrichtungen und die Erfassung der auszublasenden, fehlerhaften Zigaretten Schwierigkeiten, da Längsverfahrbewegungen und Drehbewegungen von Muldentrommel und Ansatzstücken zum Erfassen der vereinzelten Zigaretten aufeinander abgestimmt werden müssen, so daß diese Vorrichtung mit einem störungsanfälligen Betrieb behaftet ist. Auch ist die Arbeitsleistung dieser Vorrichtung nicht zufriedenstellend.From EP-A 0 192 372 a method and a device for ejecting the tobacco from filter cigarettes are known. The device has a storage magazine for defective cigarettes, a separating and transport device with a trough drum rotating about its axis, which has a number of trough-shaped depressions that are regularly distributed over the circumference, a fixing device for the singled cigarettes, a compressed air supply device that holds the tobacco inflates from the respectively fixed cigarettes, a receiving device for the blown-out tobacco and separately from this for the cigarette tubes, and an operating control device for the coordinated control of the devices of the device. With the help of this device, the filter cigarettes coming from the storage magazine for the defective cigarettes are separated on the bowl drum and transported further in the circumferential direction when the bowl drum is rotated. With the help of a movable block, which has fitting pieces on the mouthpiece parts of the filter cigarettes, at least one cigarette lying on the circumference of the hollow drum is gripped and held with its mouthpiece part, and then compressed air is blown through, so that the tobacco of the filter cigarette is ejected from the cigarette tube and transported to an associated tobacco collection facility. The cigarette tubes with the associated mouthpiece parts and the filter are switched on when the Dump drum transported to an associated, further collection facility. With this device and this procedure, the coordination of the movements of the individual devices and the detection of the defective cigarettes to be blown out pose difficulties, since longitudinal movements and rotary movements of the bowl drum and attachments for detecting the isolated cigarettes have to be coordinated with one another, so that this device has a fault-prone operation is afflicted. The performance of this device is also unsatisfactory.

Aus US-A 3 757 799 sind weitere Vorrichtungen zur Tabakrückgewinnung aus fehlerhaften Zigaretten bekannt. Bei der Vorrichtung nach der US-A 3 757 799 ist wenigstens eine weitere Trommel vorgesehen, die ebenfalls als Muldentrommel ausgelegt ist, und achsparallel in einem Abstand zur ersten Muldentrommel angeordnet ist. Diese zweite Muldentrommel dreht sich gegensinnig zur ersten Muldentrommel. Durch dieses Zusammenarbeiten der beiden gegenläufig sich drehenden Muldentrommeln werden die Zigaretten an vorbestimmten Stellen festgehalten, so daß mit Hilfe von Druckluft der Tabak aus der so festgehaltenen Filterzigarette herausgeblasen werden kann. Gegebenenfalls kann auch eine dritte Muldentrommel vorgesehen sein, die die Filterzigaretten zur Auflockerung der Tabakfüllung mit einer Druckkraft beaufschlagt. Bei der DE-C 11 21 522 umfaßt die Vorrichtung ebenfalls zwei gegensinnig sich drehende Trommeln, die achsparallel vorgesehen sind und die an ihrem Umfang Mulden haben, die jeweils eine Zigarette aufnehmen. Auch ist eine Einrichtung zum Zuführen von Druckluft vorgesehen, die Druckluft gegen den Tabak in den Zigarettenhülsen der einzelnen Zigaretten richtet, und es kann eine Trommel vorgesehen sein, welche mit Luftleitungen versehen ist, die der Reihe nach bei der Drehbewegung zur Deckung mit aufeinanderfolgenden Mulden der Muldentrommel kommen. Somit kann Druckluft über die Leitungen gegen den Tabak in den aufeianderfolgenden Zigaretten gerichtet werden. Die Leitungen können als hohle Nadeln ausgebildet sein, die quer zur Achse der Zigaretten in den Mulden gegen die Zigarettenhülse verschiebbar sind, so daß die Nadeln zugleich eine Fixiereinrichtung für die Zigaretten bilden. Die Zigarettenhülsen und der Tabak sowie gegebenenfalls vorhandene Filterteile werden in jeweils gesonderten Behältnissen aufgefangen und gesammelt.Further devices for tobacco recovery from defective cigarettes are known from US Pat. No. 3,757,799. In the device according to US Pat. No. 3,757,799, at least one further drum is provided, which is also designed as a trough drum and is arranged axially parallel at a distance from the first trough drum. This second bowl drum rotates in the opposite direction to the first bowl drum. Through this cooperation of the two counter-rotating bowl drums, the cigarettes are held at predetermined locations, so that the tobacco can be blown out of the filter cigarette thus held with the aid of compressed air. If necessary, a third trough drum can also be provided, which presses the filter cigarettes to loosen the tobacco filling. In DE-C 11 21 522, the device also comprises two drums rotating in opposite directions, which are provided axially parallel and which have troughs on their circumference, each of which holds a cigarette. A device for supplying compressed air is also provided, which directs compressed air against the tobacco in the cigarette tubes of the individual cigarettes, and a drum can be provided which is provided with air lines which, in turn, cover with successive troughs during the rotational movement to cover them Dump drum come. Compressed air can thus be directed via the lines against the tobacco in the successive cigarettes. The lines can be designed as hollow needles that are transverse to the axis of the cigarettes are displaceable in the recesses against the cigarette tube, so that the needles also form a fixing device for the cigarettes. The cigarette tubes and tobacco and any filter parts that may be present are collected and collected in separate containers.

Die Erfindung zielt darauf ab, unter Überwindung der zuvor geschilderten Schwierigkeiten eine Vorrichtung zur Tabakrückgewinnung aus fehlerhaften Zigaretten und ein Verfahren zum Betreiben derselben bereitzustellen, welche ein schnelles und zuverlässiges Trennen von Zigarettenhülsen, gegebenenfalls des Filterteils, und Tabak auf eine vollautomatische Weise gestatten.The invention aims to provide a device for tobacco recovery from defective cigarettes and a method for operating the same which overcomes the above-described difficulties and which allows a quick and reliable separation of cigarette tubes, optionally the filter part, and tobacco in a fully automatic manner.

Nach der Erfindung zeichnet sich hierzu eine Vorrichtung zur Tabakrückgewinnung aus fehlerhaften Zigaretten, die aufweist

  • a) ein Vorratsmagazin für fehlerhafte Zigaretten,
  • b) eine Vereinzelungs- und Transporteinrichtung mit einer sich um ihre Achse drehenden Muldentrommel, die eine Anzahl von über den Umfang regelmäßig verteilte, muldenförmige Vertiefungen hat,
  • c) eine Fixiereinrichtung für die vereinzelten Zigaretten,
  • d) eine Druckluftbeaufschlagungseinrichtung, die den Tabak aus den jeweils fixierten Zigaretten bläst,
  • e) eine Aufnahmeeinrichtung für den ausgeblasenen Tabak und getrennt zu diesem für die Zigarettenhülsen, und
  • f) eine Betriebssteuereinrichtung für die abgestimmte Steuerung der Einrichtungen der Vorrichtung aufweist,

dadurch aus, daß folgendes vorgesehen ist:
  • g) eine Lochtrommel, die zu den muldenförmigen Vertiefungen der Muldentrommel axial fluchtende Aufnahmebohrungen hat, sich in axialer Richtung an die Muldentrommel anschließt und drehfest mit dieser verbunden ist,
  • h) eine Saugeinrichtung zum Einsaugen der an der Muldentrommel vereinzelten Zigaretten in die Aufnahmebohrung, bis das Mundstück der jeweiligen Zigarette in der Nähe der von der Muldentrommel abgewandten Stirnseite der Lochtrommel ist,
  • i) die Fixiereinrichtung von wenigstens einer, radial beweglichen Fixiernadel pro Aufnahmebohrung im Bereich der Mundstücke der Zigaretten gebildet wird, und
  • j) die Steuereinrichtung einen in axialer Verlängerung der Lochtrommel angeordneten Steuerring aufweist, der in vorbestimmte Winkelzonen für die Bestimmung des Arbeitsablaufes der Vorrichtung unterteilt ist.
According to the invention, a device for tobacco recovery from defective cigarettes has this
  • a) a storage magazine for defective cigarettes,
  • b) a separating and transport device with a trough drum rotating about its axis, which has a number of trough-shaped depressions which are regularly distributed over the circumference,
  • c) a fixing device for the isolated cigarettes,
  • d) a compressed air supply device which blows the tobacco out of the respectively fixed cigarettes,
  • e) a receiving device for the blown tobacco and separate from this for the cigarette tubes, and
  • f) has an operating control device for coordinated control of the devices of the device,

in that the following is provided:
  • g) a perforated drum which has receiving bores which are axially aligned with the trough-shaped recesses of the trough drum, which adjoins the trough drum in the axial direction and is connected to the latter in a rotationally fixed manner,
  • h) a suction device for sucking in the individual cigarettes on the bowl drum into the receiving bore until the mouthpiece of the respective cigarette is in the vicinity of the end face of the perforated drum facing away from the bowl drum,
  • i) the fixing device is formed by at least one radially movable fixing needle per receiving bore in the area of the mouthpieces of the cigarettes, and
  • j) the control device has a control ring which is arranged in the axial extension of the perforated drum and which is subdivided into predetermined angular zones for determining the work flow of the device.

Bei der erfindungsgemäßen Vorrichtung ist zur Vereinzelung und zum Weitertransport eine Muldentrommel vorgesehen, an die sich in axialer Verlängerung eine sich gleichsinnig mit dieser drehenden Lochtrommel anschließt, welche Aufnahmebohrungen aufweist, in die die auf der Muldentrommel vereinzelten Zigaretten vollständig eingebracht werden können, so daß dann nach einer Fixierung mit Hilfe einer Druckluftbeaufschlagung der Tabak aus der Zigarettenhülse ausgeblasen werden kann und nach der Lösung der Fixiereinrichtung die Zigarettenhülse gegebenenfalls mit dem an dieser angebrachten Filterteil mittels einer weiteren Druckbeaufschlagung aus der Aufnahmebohrung ausgestoßen und zu der zugeordneten Sammel- und Aufnahmeeinrichtung befördert werden kann. Durch diese Anordnung von Muldentrommel und Lochtrommel, welche eine Dreheinheit bilden, läßt sich in Verbindung mit der von einem Steuerring gebildeten Steuereinrichtung erzielen, daß während einer vollständigen Umdrehung dieser Einheit in einem vorbestimmten Arbeitsablauf die Zigaretten vereinzelt, fixiert und der Tabak aus diesen ausgeblasen wird, wobei die beweglichen Einrichtungen der Vorrichtung ein zuverlässiges Zusammenarbeiten gewährleisten, da ein synchroner Gleichlauf von Muldentrommel, Lochtrommel und Steuerring der Steuereinrichtung gegeben ist. Daher läßt sich mit Hilfe der erfindungsgemäßen Vorrichtung innerhalb einer kurzen Zeit zuverlässig der Tabak aus fehlerhaften Zigaretten während der Ausführung einer Drehbewegung der beiden eine Bewegungseinheit bildenden Trommeln auf vollautomatische Weise zurückgewinnen. Mit Hilfe der erfindungsgemäßen Vorrichtung werden hohe Ausstoßleistungen während des kontinuierlichen Umlaufs der beiden eine Bewegungseinheit bildenden Trommeln erreicht.In the device according to the invention, a bowl drum is provided for separation and for further transport, which is followed in axial extension by a perforated drum rotating in the same direction, which has receiving bores into which the cigarettes separated on the bowl drum can be completely introduced, so that afterwards a fixation with the aid of compressed air, the tobacco can be blown out of the cigarette tube and, after the fixing device has been loosened, the cigarette tube can optionally be ejected from the receiving bore with the filter part attached to it by means of a further pressure application and transported to the assigned collection and receiving device. This arrangement of trough drum and perforated drum, which form a rotating unit, can be achieved in connection with the control device formed by a control ring that during a complete revolution of this unit in one predetermined workflow, the cigarettes are separated, fixed and the tobacco is blown out of them, the movable devices of the device ensuring reliable cooperation, since there is a synchronous synchronization of the bowl drum, perforated drum and control ring of the control device. Therefore, with the aid of the device according to the invention, the tobacco can be reliably recovered from defective cigarettes in a fully automatic manner during the execution of a rotary movement of the two drums forming a movement unit. With the aid of the device according to the invention, high output rates are achieved during the continuous rotation of the two drums forming a movement unit.

Vorzugsweise sind jeder Aufnahmebohrung in der Lochtrommel zwei axial beabstandete Fixiernadeln zugeordnet, so daß mit relativ hohen Blasdrücken zum Ausblasen des Tabaks aus den Zigarettenhülsen zur Verbesserung der Arbeitsleistung der Vorrichtung gearbeitet werden kann, da die Zigarette an ihrem Mundstückteil zuverlässig mit den beiden Fixiernadeln im Abstand festgehalten ist.Preferably, each receiving bore in the perforated drum is assigned two axially spaced fixing needles, so that relatively high blowing pressures for blowing out the tobacco from the cigarette tubes can be used to improve the performance of the device, since the cigarette is reliably held at a distance from its mouthpiece part by the two fixing needles is.

Vorzugsweise ist zur Beaufschlagung der Fixiernadeln in Richtung ihrer Fixierstellung ein die Lochtrommel umgebender und fest mit dieser verbundender Führungsring vorgesehen, in dem radial beweglich für jede Fixiernadel oder jedes Fixiernadelpaar eine Druckbeaufschlagungseinrichtung in Form von Rollenbolzen angeordnet ist. In Verbindung mit einer Kurvensteuerung, die von einem Kurvenstück gebildet werden kann, werden die Rollenbolzen zur Fixierung verschoben, und die Fixiernadeln bleiben in ihrer Fixierstellung wenigstens während des Ausblasens der Zigaretten mittels des Kurvenstücks gehalten. Durch diese Auslegung erhält man eine Fixiereinrichtung, die hinsichtlich ihrer Arbeitsweise ebenfalls während der Umlaufbewegung bzw. Drehbewegung der beiden Trommel mittels einer Kurvensteuerung betreibbar ist, so daß auch der Betrieb der Fixiereinrichtung bei der Umlaufbewegung ohne Abstimmungsschwierigkeiten gesteuert werden kann.A guide ring, which surrounds the perforated drum and is fixedly connected to it, is preferably provided to act upon the fixing needles in the direction of their fixing position, in which a pressurizing device in the form of roller bolts is arranged for each fixing needle or pair of fixing needles. In connection with a curve control, which can be formed by a curve piece, the roller bolts are displaced for fixing, and the fixing needles remain in their fixing position at least during the blowing out of the cigarettes by means of the curve piece. With this design, a fixing device is obtained which, in terms of its mode of operation, can also be operated during the rotating movement or rotary movement of the two drums by means of a cam control, so that the operation of the fixing device during the rotating movement can also be controlled without coordination difficulties.

Vorzugsweise ist bei der erfindungsgemäßen Vorrichtung der Steuerring in axialer Richtung der Lochtrommel derart federnd gelagert, daß er gegen die Stirnseite der Lochtrommel, die von der Muldentrommel abgewandt liegt, anliegt und eine Anschlageinrichtung für die Eindringtiefe der Zigaretten in die Aufnahmebohrungen dient. Dieser Steuerring ist hierbei als eine Art Schleifring ausgebildet, der ständig gegen die Stirnseite der Lochtrommel angedrückt wird, um zu vermeiden, daß sich dieser bei den im Wechsel einwirkenden Unter- und Überdrücken von der Lochtrommel abhebt. Zugleich dient der Steuerring bei dieser Auslegungsform als Anschlageinrichtung, durch die erreicht wird, daß die Zigaretten im wesentlichen unabhängig von ihrer Länge immer zuverlässig mit ihrem Mundstückteil so weit innerhalb der Aufnahmebohrungen der Lochtrommel liegen, daß die Fixiereinrichtung zuverlässig die jewelige Zigarette festhalten kann.Preferably, in the device according to the invention the control ring is resiliently mounted in the axial direction of the perforated drum in such a way that it bears against the end face of the perforated drum which faces away from the hollow drum and serves as a stop device for the depth of penetration of the cigarettes into the receiving bores. This control ring is designed as a type of slip ring that is constantly pressed against the end face of the perforated drum in order to prevent it from lifting off from the perforated drum under the alternating negative and positive pressures. At the same time, the control ring in this design serves as a stop device, by means of which the cigarettes always lie reliably, regardless of their length, with their mouthpiece part so far inside the receiving bores of the perforated drum that the fixing device can reliably hold the relevant cigarette.

Gemäß einer bevorzugten Ausführungsform nach der Erfindung ist die Vorrichtung derart ausgelegt, daß der Steuerring während einer vollständigen Umdrehung wenigstens eine vorbestimmte Winkelzone als Steuerzone zum Anlegen eines Unterdrucks zum Einsaugen der Zigaretten in die Aufnahmebohrungen und eine Winkelzone als Steuerzone zum Einleiten von Druckluft zum Ausblasen des Tabaks aus den Zigarettenhülsen in den Aufnahmebohrungen durchläuft. In diesen als Steuerzonen dienenden Winkelzonen sind vorzugsweise Öffnungen vorgesehen, über die eine Verbindung mit einer zugeordneten Druckluftbeaufschlagungseinrichtung oder einer Saugdruckerzeugungseinrichtung hergestellt werden kann. Durch die entsprechende Größe der Öffnungen in Winkelrichtung gemessen kann dann die Zeit in Verbindung mit der Drehzahl der umlaufenden Einheit der beiden Trommeln bestimmt werden, während der ein Saugdruck oder ein Überdruck auf die Zigaretten in den Aufnahmebohrungen einwirkt. Somit erfolgt bei der erfindungsgemäßen Vorrichtung auch die Steuerung für die an der Vorrichtung auszuführenden Arbeitsschritte über eine im Umlaufsinne wirksame Steuereinrichtung, so daß alle Bewegungsabläufe unmittelbar während der Drehbewegung gesteuert werden.According to a preferred embodiment of the invention, the device is designed such that the control ring during a complete revolution at least a predetermined angular zone as a control zone for applying a negative pressure for sucking in the cigarettes into the receiving bores and an angular zone as a control zone for introducing compressed air to blow out the tobacco passes out of the cigarette tubes in the receiving holes. In these angular zones serving as control zones, openings are preferably provided, via which a connection can be established with an associated compressed air supply device or a suction pressure generating device. The corresponding size of the openings in the angular direction can then be used to determine the time in connection with the rotational speed of the rotating unit of the two drums during which suction pressure or overpressure acts on the cigarettes in the receiving bores. Thus, in the device according to the invention, the control for the work steps to be carried out on the device also takes place via a control device which is effective in the sense of rotation, so that all movement sequences can be controlled directly during the rotary movement.

Vorzugsweise kann der Steuerring eine weitere Winkelzone als Steuerzone aufweisen, an der Druckluft eingeleitet wird, welche die leeren Zigarettenhülsen, an denen gegebenenfalls die Filterteile vorgesehen sind, aus den Aufnahmebohrungen ausstößt, wobei sich diese weitere Winkelzone in Umlaufrichtung des Steuerrings gesehen vorzugsweise an die Steuerzone anschließt, während der der Tabak aus den Zigarettenhülsen mittels Druckluft geblasen wird.The control ring can preferably have a further angular zone as the control zone, at which compressed air is introduced, which ejects the empty cigarette tubes, on which the filter parts are optionally provided, from the receiving bores, this further angular zone preferably adjoining the control zone when viewed in the direction of rotation of the control ring , during which the tobacco is blown out of the cigarette tubes by means of compressed air.

Gemäß einer bevorzugten Ausführungsform nach der Erfindung umfaßt die Steuereinrichtung weiterhin eine Taktscheibe, welche den Arbeitstakt bestimmt, und die in axialem Abstand zu dem Steuerring angeordnet ist und die weiteren Steuereinrichtungen der Vorrichtung steuert. Mit Hilfe dieser Taktscheibe können die einzelnen zu steuernden Einrichtungen der Gesamtvorrichtung auf vorbestimmte Weise koordiniert werden.According to a preferred embodiment according to the invention, the control device further comprises a clock disc, which determines the work cycle, which is arranged at an axial distance from the control ring and controls the further control devices of the device. With the aid of this clock disk, the individual devices of the overall device to be controlled can be coordinated in a predetermined manner.

Eine besonders bevorzugte Ausführungsform erhält man dann, wenn die Muldentrommel und die Lochtrommel auf einer gemeinsamen Drehwelle angeordnet sind, wobei gegebenenfalls auch der Steuerring sowie die Taktscheibe an dieser gemeinsamen Welle vorgesehen sind. Wenn eine solche gemeinsame Welle bei der Vorrichtung vorgesehen ist, ist ein zuverlässiger Gleichlauf der beiden Trommeln, des Steuerrings und gegebenenfalls der Taktscheibe gegeben, so daß man ein betriebszuverlässiges Arbeiten der Vorrichtung gewährleisten kann.A particularly preferred embodiment is obtained when the trough drum and the perforated drum are arranged on a common rotary shaft, the control ring and the timing disk possibly also being provided on this common shaft. If such a common shaft is provided in the device, the two drums, the control ring and possibly the clock disk are reliably synchronized, so that the device can be operated reliably.

Um eine sichere Übergabe der Zigaretten aus den Mulden der Muldentrommel zu den Aufnahmebohrungen in der Lochtrommel zu erreichen, sind vorzugsweise am Übergang zwischen den jeweiligen muldenförmigen Vertiefungen der Muldentrommel und der Aufnahmebohrungen in der Lochtrommel zu den Aufnahmebohrungen geneigte Ablaufschrägen vorgesehen. Hierdurch wird sichergestellt, daß auch bei geringfügigen Fluchtungsabweichungen aufgrund von Fertigungstoleranzen die auf der Muldentrommel vereinzelten Zigaretten zuverlässig in die zugeordneten Aufnahmebohrungen eingesaugt werden.In order to ensure a safe transfer of the cigarettes from the troughs of the trough drum to the receiving bores in the perforated drum, inclined drainage slopes are preferably provided at the transition between the respective trough-shaped depressions of the trough drum and the receiving bores in the perforated drum. This ensures that even with slight misalignments due to Manufacturing tolerances, the cigarettes separated on the trough drum are reliably sucked into the assigned receiving bores.

Zur Unterstützung der Vereinzelung der fehlerhaften Zigaretten mit Hilfe der Muldentrommel kann dieser achsparallel eine Abweis-Vieleckrolle zugeordnet sein, die sich vorzugsweise gleichsinnig wie die Muldentrommel dreht. Hierdurch läßt sich der Vereinzelungsvorgang schneller vornehmen, so daß die Vorrichtung mit höheren Arbeitsgeschwindigkeiten betrieben werden kann.To support the separation of the defective cigarettes with the aid of the bowl drum, a deflecting polygonal roller can be assigned to this axis-parallel, which preferably rotates in the same direction as the bowl drum. This allows the separation process to be carried out more quickly, so that the device can be operated at higher working speeds.

Um eine möglichst gedrängte Bauweise der Vorrichtung zu erreichen, werden die Muldentrommel und die damit drehfest verbundene Lochtrommel und die Abweis-Vieleckrolle von einer gemeinsamen Antriebseinrichtung angetrieben.In order to achieve the most compact possible construction of the device, the trough drum and the perforated drum connected to it in a rotationally fixed manner and the deflecting polygonal roller are driven by a common drive device.

Vorzugsweise ist die Vorrichtung für Filterzigaretten geeignet, d. h. für solche Zigaretten, die am Mundstückteil einen Filteransatz haben.Preferably, the device is suitable for filter cigarettes, i.e. H. for those cigarettes that have a filter attachment on the mouthpiece part.

Gemäß einer zweckmäßigen Ausgestaltungsform nach der Erfindung ist ein Sensor zur Überwachung der Belegung der Aufnahmebohrungen in der Lochtrommel vorgesehen, welcher die Vorrichtung beim Fehlen einer Zigarette in der Aufnahmebohrung außer Betrieb setzt. Ferner kann die Vorrichtung eine vorzugsweise photoelektrisch arbeitende Erfassungseinrichtung aufweisen, welche die auszublasenden Zigaretten erfaßt und diese zugleich zählt.According to an expedient embodiment according to the invention, a sensor for monitoring the occupancy of the receiving bores in the perforated drum is provided, which deactivates the device in the absence of a cigarette in the receiving bore. Furthermore, the device can have a preferably photoelectrically operating detection device which detects the cigarettes to be blown out and at the same time counts them.

Ein Verfahren zum Betreiben der Vorrichtung zur Tabakrückgewinnung aus fehlerhaften Zigaretten zeichnet sich dadurch aus, daß mit Hilfe der Steuereinrichtung im wesentlichen folgender Arbeitsablauf erreicht wird:

  • Mit Hilfe der Abweis-Vieleckrolle werden die vom Magazin kommenden Filterzigaretten vereinzelt und in die entsprechenden Mulden der Muldentrommel überführt;
  • bei der Umlaufbewegung der Muldentrommel werden die Filterzigaretten in den Mulden in Umfangsrichtung weitertransportiert;
  • die Filterzigaretten in den Mulden der Muldentrommel werden axial in die Aufnahmebohrungen der Lochtrommel eingeschoben und mit Hilfe eines über den Steuerring der Steuereinrichtung angelegten Saugdrucks oder Unterdrucks in dieselben eingesaugt, bis ihr Mundstückteil an der Steuerringfläche anliegt;
  • die Druckbolzen am Führungsring werden über ein zugeordnetes Kurvensegment derart beaufschlagt, daß die Fixiernadeln der Fixiereinrichtung die Zigaretten vorzugsweise im Mundstückbereich in den Aufnahmebohrungen festhalten;
  • dann wird ein Überdruck oder Blasdruck unter Steuerung über den Steuerring angelegt, mittels welchem der Tabak aus der Zigarettenhülse ausgeblasen und zu der zugeordneten Aufnahmeeinrichtung für den Tabak befördert wird;
  • die Fixiernadeln der Fixiereinrichtung werden aus der Zigarettenhülse an dem Mundstückteil dadurch herausgefahren, daß die Druckbolzen am Führungsring von dem Kurvensegment freikommen, und
  • mittels eines weiteren Druckluftimpulses gesteuert über den Steuerring werden die Zigarettenhülsen mit dem zugeordneten Mundstückteil aus den Aufnahmebohrungen herausgeblasen und in eine zugeordnete Aufnahmeeinrichtung hierfür gefördert.
A method for operating the device for tobacco recovery from defective cigarettes is characterized in that the following work flow is essentially achieved with the aid of the control device:
  • With the help of the rejection polygon roller, the filter cigarettes coming from the magazine are separated and transferred into the corresponding troughs of the trough drum;
  • when the trough drum rotates, the filter cigarettes are transported in the troughs in the circumferential direction;
  • the filter cigarettes in the troughs of the trough drum are pushed axially into the receiving bores of the perforated drum and sucked into them with the aid of a suction pressure or negative pressure applied via the control ring of the control device until their mouthpiece part rests on the control ring surface;
  • the pressure bolts on the guide ring are acted upon via an assigned cam segment in such a way that the fixing needles of the fixing device hold the cigarettes preferably in the receiving bores in the area of the mouthpiece;
  • then an overpressure or blowing pressure is applied under control via the control ring, by means of which the tobacco is blown out of the cigarette tube and conveyed to the associated receiving device for the tobacco;
  • the fixing needles of the fixing device are moved out of the cigarette tube on the mouthpiece part in that the pressure bolts on the guide ring are released from the cam segment, and
  • controlled by means of another compressed air pulse via the control ring, the cigarette tubes with the associated mouthpiece part are blown out of the receiving bores and conveyed into an associated receiving device for this purpose.

Gegebenenfalls kann das Verfahren auch so ausgelegt werden, daß über den Steuerring vor dem Beginn eines weiteren Arbeitszyklus nochmals ein Druckluftstoß zur Einwirkung gebracht wird, so daß die Aufnahmebohrungen in der Lochtrommel von Verunreinigungen freigeblasen werden, um ein störungsfreies Weiterarbeiten der Vorrichtung zu erreichen.If necessary, the method can also be designed such that a compressed air blast is brought into effect again via the control ring before the start of a further working cycle, so that the receiving bores in the perforated drum are blown free of impurities in order to achieve trouble-free further operation of the device.

Die Erfindung wird nachstehend anhand einer bevorzugten Ausführungsform unter Bezugnahme auf die beigefügte Zeichnung näher erläutert. Darin zeigt:

Fig. 1
eine Seitenansicht in teilgeschnittener Darstellung einer Grundausführungsform einer Vorrichtung zur Tabakrückgewinnung aus fehlerhaften Zigaretten nach der Erfindung,
Fig. 1a
eine vergrößerte Ausschnittsansicht von Fig.1 zur Verdeutlichung einer Fixiereinrichtung,
Fig. 2
eine perspektivische Ansicht der wesentlichen Teile der Vorrichtung von Fig. 1,
Fig. 3
eine Draufsicht zur Detaildarstellung eines Steuerrings der Steuereinrichtung für die Vorrichtung nach den Fig. 1 und 2, und
Fig. 4
eine Draufsicht auf eine Taktscheibe der Steuereinrichtung der Vorrichtung.
The invention is explained below using a preferred embodiment with reference to the accompanying drawings. It shows:
Fig. 1
2 shows a side view in partial section of a basic embodiment of a device for tobacco recovery from defective cigarettes according to the invention,
Fig. 1a
2 shows an enlarged detail view from FIG. 1 to illustrate a fixing device,
Fig. 2
2 shows a perspective view of the essential parts of the device from FIG. 1,
Fig. 3
a plan view of a control ring of the control device for the device according to FIGS. 1 and 2, and
Fig. 4
a plan view of a clock disk of the control device of the device.

Anhand der Fig. 1, 1a und 2 wird eine bevorzugte Ausführungsform einer Vorrichtung zur Tabakrückgewinnung aus fehlerhaften Zigaretten erläutert, die insgesamt mit 1 bezeichnet ist. Die Vorrichtung 1 kann als eine ortsunabhängige, auf einem Gestell oder als Tischmodell zu bedienende Einheit ausgelegt sein. Auf einer im wesentlichen horizontal verlaufenden Grundplatte 2, die beispielsweise aus Aluminium hergestellt sein kann, ist eine im wesentlichen vertikal verlaufende Lagerplatte 3 angebracht. Diese Lagerplatte 3 dient zugleich als Trennwand zwischen der Antriebs- und Steuereinheit und den sich bewegenden Teilen der Vorrichtung 1. An der Rückseite der Lagerplatte 3 ist ein Antriebsmotor 4 angeflanscht, der eine auf der Vorderseite der Lagerplatte angeordnete Trommelkombination 5 antreibt. Die Trommelkombination 5 umfaßt eine auf einer gemeinsamen Welle 6 sitzende Muldentrommel 7 und eine Lochtrommel 8. Die Welle 6 verläuft im wesentlichen horizontal. Die Muldentrommel 7 hat über ihren Umfang regelmäßig verteilte, muldenförmige Vertiefungen 9, welche beispielsweise in einer Anzahl von 24 vorgesehen sind. Oberhalb der Muldentrommel 7 ist eine Abweis-Vieleckrolle 10 achsparallel zu der Muldentrommel 7 angeordnet. Die Abweis-Vieleckrolle 10 wird mit Hilfe eines Motors 11 gegensinnig zu der Muldentrommel 7 angetrieben, wie dies insbesondere mit Pfeilen in Fig. 2 gezeigt ist. In axialer Richtung schließt sich an die Muldentrommel 7 die Lochtrommel 8 an, welche beispielsweise über eine Schraub- und Stiftverbindung 12, 13 drehfest mit der Muldentrommel 7 verbunden ist, so daß die beiden Trommeln 7 und 8 gleichsinnig und synchron um die gemeinsame Welle 6 umlaufen. Die Lochtrommel 8 weist axial fluchtend zu den muldenförmigen Vertiefungen 9 der Muldentrommel 7 Aufnahmebohrungen 14 auf, die sich in axialer Richtung durch die Lochtrommel 8 erstrecken. An den Übergangsstellen zwischen den muldenförmigen Vertiefungen 9 und den Aufnahmebohrungen 14 sind Ablaufschrägen 15 vorgesehen, die in Richtung der Aufnahmebohrungen 14 geneigt sind, um toleranzbedingte sowie unvermeidbare Fluchtungsfehler auszugleichen. Die Aufnahmebohrungen 14 entsprechen in ihrer Anzahl der Anzahl der muldenförmigen Vertiefungen 9 an der Muldentrommel 7. Die Aufnahmebohrungen 14 sind ferner derart bemessen, daß eine Zigarette mit Mundstück vollständig aufgenommen werden kann, wie dies beispielsweise in Fig. 2 der Zeichnung gezeigt ist. Eine Zigarette mit Mundstück und Filtereinsatz ist dort mit 16 bezeichnet.1, 1a and 2, a preferred embodiment of a device for tobacco recovery from defective cigarettes is explained, which is denoted overall by 1. The device 1 can be designed as a location-independent unit to be operated on a frame or as a table model. On a substantially horizontal base plate 2, which can be made of aluminum, for example, a substantially vertical bearing plate 3 is attached. This bearing plate 3 also serves as a partition between the drive and control unit and the moving parts of the device 1. A drive motor 4 is flanged to the rear of the bearing plate 3 and drives a drum combination 5 arranged on the front of the bearing plate. The drum combination 5 comprises one on a common shaft 6 seated bowl drum 7 and a perforated drum 8. The shaft 6 runs essentially horizontally. The trough drum 7 has trough-shaped depressions 9 which are distributed regularly over its circumference and are provided, for example, in a number of 24. Above the trough drum 7, a deflecting polygonal roller 10 is arranged axially parallel to the trough drum 7. The deflection polygonal roller 10 is driven with the aid of a motor 11 in the opposite direction to the trough drum 7, as is shown in particular by arrows in FIG. 2. In the axial direction, the hollow drum 7 is followed by the perforated drum 8, which is rotatably connected to the hollow drum 7, for example via a screw and pin connection 12, 13, so that the two drums 7 and 8 rotate in the same direction and synchronously around the common shaft 6 . The perforated drum 8 has axially aligned with the trough-shaped recesses 9 of the trough drum 7 receiving holes 14 which extend through the perforated drum 8 in the axial direction. At the transition points between the trough-shaped depressions 9 and the receiving bores 14, run-off slopes 15 are provided, which are inclined in the direction of the receiving bores 14 in order to compensate for tolerance-related and unavoidable misalignments. The number of receiving bores 14 corresponds to the number of trough-shaped depressions 9 on the trough drum 7. The receiving bores 14 are also dimensioned such that a cigarette with a mouthpiece can be completely received, as is shown, for example, in FIG. 2 of the drawing. A cigarette with a mouthpiece and filter insert is designated 16 there.

Dem Mundstückbereich der Zigaretten in den Aufnahmebohrungen ist eine Fixiereinrichtung 17 zugeordnet, welche beim dargestellten Beispiel zwei Fixiernadeln 18 pro Aufnahmebohrung 14 umfaßt. Diese Fixiernadeln sind mittels Federn 19 jeweils in Richtung ihrer in Fig. 1 gezeigten ausgerückten Stellung vorbelastet. Nach Fig. 1a gehen die Fixiernadeln 18 durch zugeordnete radiale Öffnungen 20 in der Lochtrommel 8. Außenseitig ist dieser Bereich der Lochtrommel 8 von einem Führungsring 21 umgeben, welcher fest mit der Lochtrommel 8 verbunden ist. Unter Bezugnahme auf Fig. 1a sowie Fig. 2 sind in diesem Führungsring 21 Druckbolzen 22 bzw. Rollenbolzenradial beweglich angeordnet, die jeweils an ihrem äußeren Ende Rollen 23 tragen. Das innere Ende der Rollenbolzen 22 beaufschlagt die Fixiernadeln 18 der Fixiereinrichtung 17, und jedem Fixiernadelpaar 18 ist je ein Rollenbolzen 22 im Führungsring 21 zugeordnet. Unter Zuordnung zu den äußeren Enden der Rollenbolzen 22 und den dort vorgesehenen Rollen 23 ist an der Grundplatte 2 ein Kurvensegment 24 angebracht, auf dem die Rollen 23 der Rollenbolzen 22 abrollen können, und das die Rollenbolzen 22 im Bereich des Kurvensegments 24 derart beaufschlagt, daß mittels den Rollenbolzen 22 die jeweils zugeordneten Fixiernadelpaare 18 in ihre Fixierstellung (siehe Fig. 2) gebracht werden, in der sie in den Mundstückbereich der Zigarette 16, insbesondere den Filterteil, eingestochen werden. An der Rückseite 25 der Lochtrommel 8 liegt ein Steuerring 26 an, der mittels einer Feder- und Bolzeneinrichtung 27 geringfügig axial verschiebbar, aber durch die Feder- und Bolzeneinrichtung 27 immer derart beaufschlagt ist, daß er in ständiger Kontaktanlage an der Rückseite 25 der Lochtrommel 8 ist. Die näheren Ausbildungseinzelheiten des Steuerrings 26 werden nachstehend anhand von Fig. 3 näher erläutert.A fixing device 17 is assigned to the mouthpiece area of the cigarettes in the receiving bores, which in the example shown comprises two fixing needles 18 per receiving bore 14. These fixing needles are each biased by springs 19 in the direction of their disengaged position shown in FIG. 1. 1a, the fixing needles 18 pass through assigned radial openings 20 in the perforated drum 8. On the outside, this area of the perforated drum 8 is surrounded by a guide ring 21, which is firmly connected to the perforated drum 8. With reference to FIGS. 1 a and 2, pressure bolts 22 or roller bolt radially are movably arranged in this guide ring 21, each of which carries rollers 23 at their outer end. The inner end of the roller pin 22 acts on the fixing needles 18 of the fixing device 17, and each pair of fixing pins 18 is assigned a roller pin 22 in the guide ring 21. Assigned to the outer ends of the roller bolts 22 and the rollers 23 provided there, a curve segment 24 is attached to the base plate 2, on which the rollers 23 of the roller bolts 22 can roll, and which acts on the roller bolts 22 in the region of the curve segment 24 such that by means of the roller bolts 22, the respectively associated fixing needle pairs 18 are brought into their fixing position (see FIG. 2), in which they are inserted into the mouthpiece area of the cigarette 16, in particular the filter part. At the rear 25 of the perforated drum 8 there is a control ring 26 which can be moved axially slightly by means of a spring and bolt device 27, but is always acted upon by the spring and bolt device 27 such that it is in constant contact with the rear 25 of the perforated drum 8 is. The detailed training details of the control ring 26 are explained below with reference to FIG. 3.

Ein Vorratsmagazin 28 für fehlerhafte Zigaretten ist etwas oberhalb und seitlich zu der Muldentrommel 7 angeordnet, wobei die Schachtlänge des Vorratsmagazins 28 auf die Länge der jeweils zu bearbeitenden Zigaretten eingestellt werden kann. Unterhalb des Vorratsmagazins 28 ist eine Austrageinrichtung 29 für die mit Hilfe der Vorrichtung 1 von Tabak freigeblasenen Zigarettenhülsen 30 vorgesehen. Die Austrageinrichtung 29 wird von einer Austragrutsche 31 gebildet, über die die Zigarettenhülsen 30 zu einer nicht näher gezeigten Sammeleinrichtung für die Zigarettenhülsen befördert werden.A storage magazine 28 for defective cigarettes is arranged somewhat above and to the side of the trough drum 7, the shaft length of the storage magazine 28 being able to be adjusted to the length of the cigarettes to be processed. A discharge device 29 is provided below the storage magazine 28 for the cigarette tubes 30 blown free of tobacco with the aid of the device 1. The discharge device 29 is formed by a discharge chute 31, via which the cigarette tubes 30 are conveyed to a collecting device for the cigarette tubes, which is not shown in detail.

Der vorderen Stirnseite 32 der Lochtrommel 8 ist eine Austrageinrichtung 33 für den ausgeblasenen Tabak zugeordnet. Die Austrageinrichtung 33 wird von einem flexiblen Rohrstück 34 gebildet, das gegen die vordere Stirnseite 32 der Lochtrommel 8 im Bereich der Aufnahmebohrungen 14 derselben anliegt. Über diese Austrageinrichtung 33 kann der mit Hilfe der Vorrichtung 1 ausgeblasene Tabak in eine nicht näher dargestellte Sammeleinrichtung befördert werden, die zweckmäßigerweise unterhalb der Grundplatte 2 der Vorrichtung 1 vorgesehen ist.The front end face 32 of the perforated drum 8 is a discharge device 33 assigned to the blown tobacco. The discharge device 33 is formed by a flexible pipe piece 34 which bears against the front end face 32 of the perforated drum 8 in the region of the receiving bores 14 thereof. Via this discharge device 33, the tobacco blown out with the aid of the device 1 can be conveyed into a collecting device, not shown, which is expediently provided below the base plate 2 of the device 1.

Ferner ist in Fig. 2 schematisch ein Sensor 35 angedeutet, welcher die Belegung der Aufnahmebohrungen 14 mit Zigaretten 16 überwacht. Dieser Sensor 35 kann die Vorrichtung 1 dann außer Betrieb setzen, wenn er feststellt, daß keine Zigarette in der Aufnahmebohrung 14 vorhanden ist. Die Vorrichtung 1 kann dann gewartet werden und dann anschließend wieder in Betrieb genommen werden.Furthermore, a sensor 35 is schematically indicated in FIG. 2, which monitors the occupancy of the receiving bores 14 with cigarettes 16. This sensor 35 can then put the device 1 out of operation if it detects that there is no cigarette in the receiving bore 14. The device 1 can then be serviced and then put back into operation.

Anhand von Fig. 3 werden nunmehr nähere Einzelheiten des Steuerrings 26 der Vorrichtung zur Tabakrückgewinnung aus fehlerhaften Zigaretten beschrieben. Der Steuerring 26 ist in mehrere Winkelzonen, die als Steuerzonen dienen, unterteilt. Beim dargestellten Beispiel umfaßt der Steuerring 26 die Winkelbereiche bzw. Winkelzonen 41 bis 48. Über diese Winkelzonen wird der Arbeitsablauf der Vorrichtung 1 gesteuert, und der Steuerring 26 bildet ein wesentliches Teil der bei der erfindungsgemäßen Vorrichtung 1 vorgesehenen Steuereinrichtung.3, more details of the control ring 26 of the device for tobacco recovery from defective cigarettes will now be described. The control ring 26 is divided into several angular zones, which serve as control zones. In the example shown, the control ring 26 comprises the angular ranges or angle zones 41 to 48. The work flow of the device 1 is controlled via these angle zones, and the control ring 26 forms an essential part of the control device provided in the device 1 according to the invention.

In der Winkelzone 41, in deren Bereich keine Öffnung vorgesehen ist, ist für den Beginn eines Arbeitszyklusses bestimmt, bei dem fehlerhafte Zigaretten 16' im Vorratsmagazin 28 auf die Muldentrommel 7 fallen und mit Hilfe der Vereinzelungs- und Transporteinrichtung 36, welche die Muldentrommel 7 und die Abweis-Vieleckrolle 10 umfaßt, in die muldenförmigen Vertiefungen 9 gelangen, deren Tiefe in etwa dem Durchmesser einer Zigarette 16' entspricht. Mit Hilfe der Muldentrommel 7 werden dann die Zigaretten 16' in Uhrzeigerrichtung in Umfangsrichtung weitertransportiert. Im Bereich der Winkelzone 42 werden die in der Muldentrommel 7 liegenden Zigaretten 16' über die Ablaufschrägen 15 in Richtung zu den Aufnahmebohrungen 14 der Lochtrommel 8 so bewegt, daß das Mundstückteil der Zigarette 16' sich geringfügig beispielsweise um eine Strecke von 8 mm innerhalb der Aufnahmebohrungen 14 befindet.In the angular zone 41, in the area of which no opening is provided, it is intended for the beginning of a work cycle in which defective cigarettes 16 'in the storage magazine 28 fall onto the bowl drum 7 and with the aid of the separating and transport device 36, which the bowl drum 7 and the repellent polygonal roller 10, into the trough-shaped recesses 9, the depth of which corresponds approximately to the diameter of a cigarette 16 '. With the help of the trough drum 7, the cigarettes 16 'are then transported clockwise in the circumferential direction. In the area of the angular zone 42, the cigarettes 16 'lying in the trough drum 7 are moved over the bevels 15 in the direction of the receiving bores 14 of the perforated drum 8 in such a way that the mouthpiece part of the cigarette 16' moves slightly, for example, by a distance of 8 mm within the receiving bores 14 is located.

Im Bereich der Winkelzone 43 ist eine Öffnung 43', die zweckmäßigerweise von einer nierenförmigen Ausfräsung gebildet wird, vorgesehen. Über dieser Öffnung 43' liegt ein Saugdruck bzw. ein Vakuum über eine nicht näher gezeigte Einrichtung an, so daß die geringfügig in die Aufnahmebohrung 14 eingeführte Zigarette 16' in die Aufnahmebohrung 14 eingesaugt wird, bis ihr Mundstückteil an der Steuerringfläche anliegt, die zugleich als Anschlageinrichtung dient. Mit Hilfe geeigneter, nicht dargestellter Einrichtungen läßt sich die Stärke des Saugdrucks einstellen. Im Bereich der Winkelzone 44 ist eine weitere nierenförmige Öffnung 44' vorgesehen, die ebenfalls vorzugsweise als Ausfräsung ausgebildet ist und über die ein Saugdruck anliegt. Dieser Saugdruck ist stärker als der in der Winkelzone 43, so daß sich die Vakuumleistung erhöhen läßt. Mit dieser erhöhten Vakuumleistung können auch stark verformte Zigaretten 16' zuverlässig in die Aufnahmebohrung 14 bis zum Anliegen an dem Steuerring 26 eingesaugt werden.An opening 43 ′, which is expediently formed by a kidney-shaped cutout, is provided in the region of the angular zone 43. About this opening 43 'is a suction pressure or a vacuum via a device, not shown, so that the slightly inserted into the receiving bore 14 cigarette 16' is sucked into the receiving bore 14 until its mouthpiece abuts the control ring surface, which at the same time as Anchor device serves. With the help of suitable devices, not shown, the strength of the suction pressure can be adjusted. In the area of the angular zone 44, a further kidney-shaped opening 44 'is provided, which is also preferably designed as a cutout and via which a suction pressure is applied. This suction pressure is stronger than that in the angular zone 43, so that the vacuum output can be increased. With this increased vacuum output, even strongly deformed cigarettes 16 'can be reliably sucked into the receiving bore 14 until they rest against the control ring 26.

In der Winkelzone 45 des Steuerrings 26 ist eine Öffnung 45' vorgesehen, die als eine langlochförmige Durchgangsöffnung ausgebildet ist. Hinter dieser Öffnung 45' ist eine photoelektrische Erfassungseinrichtung 37, die beispielsweise den Sensor 35 in Fig. 2 aufweist, vorgesehen, welche die in der Aufnahmebohrung 14 befindliche Zigarette 16 erfaßt und gegebenenfalls zählen kann.In the angular zone 45 of the control ring 26, an opening 45 'is provided, which is designed as an elongated through opening. Behind this opening 45 'there is a photoelectric detection device 37, which has, for example, the sensor 35 in FIG. 2, which detects the cigarette 16 located in the receiving bore 14 and can count if necessary.

In der als Steuerzone dienenden Winkelzone 46 des Steuerrings 26 ist eine Öffnung 46' vorgesehen, die von einer nierenförmigen Ausfräsung gebildet wird. Über diese Öffnung 46' wird eine Verbindung mit einer nicht näher dargestellten Druckluftbeaufschlagungseinrichtung hergestellt. Bevor diese Verbindung mit der Druckluft hergestellt wird, wird die Zigarette 16 in der Aufnahmebohrung 14 mit Hilfe der Fixiereinrichtung 17 fixiert. Mit Hilfe des in der Winkelzone 46 einwirkenden Druckluftimpulses, der auf das Mundstücksteil der Zigarette 16 gerichtet ist, wird der in der Zigarettenhülse 30 befindliche Tabak 38 ausgeblasen und über die Austrageinrichtung 33 zu der zugeordneten Sammeleinrichtung gefördert. Mit Hilfe der in Fig. 1 gezeigten Feder- und Bolzeneinrichtung 27 wird der Steuerring 26 gerade im Bereich dieser Winkelzone 46 mit Hilfe eines einfachwirkenden Kurzhubzylinders gegen die Rückseite 25 der Lochtrommel 8 angedrückt, um dem erhöhten Ausblasdruck entgegenzuwirken, so daß sich der Steuerring 26 nicht von der Rückseite 25 der Lochtrommel 8 abheben kann.In the angular zone 46 of the control ring 26 which serves as the control zone, an opening 46 'is provided, which is formed by a kidney-shaped cutout. About this opening 46 ' Established connection with a compressed air supply device, not shown. Before this connection with the compressed air is established, the cigarette 16 is fixed in the receiving bore 14 with the aid of the fixing device 17. With the help of the compressed air pulse acting in the angular zone 46, which is directed at the mouthpiece part of the cigarette 16, the tobacco 38 located in the cigarette tube 30 is blown out and conveyed via the discharge device 33 to the associated collecting device. With the aid of the spring and bolt device 27 shown in FIG. 1, the control ring 26 is pressed against the rear side 25 of the perforated drum 8 in the area of this angular zone 46 by means of a single-acting short-stroke cylinder in order to counteract the increased blow-out pressure, so that the control ring 26 does not move can lift off the rear 25 of the perforated drum 8.

Nach Überstreichen der Winkelzone 46 ist ein Winkelbereich ohne Öffnungen oder dgl. vorgesehen, und bei dem Weiterdrehen des Steuerringes über diesen Bereich hinweg wird die Fixiereinrichtung 7 wieder in ihre Grundstellung zurückgefahren, so daß die nun von Tabak 38 freigeblasene Zigarettenhülse 30 in der Aufnahmebohrung 14 freigegeben ist.After sweeping over the angular zone 46, an angular region without openings or the like is provided, and when the control ring is rotated further over this region, the fixing device 7 is moved back into its basic position, so that the cigarette tube 30 now blown free of tobacco 38 is released in the receiving bore 14 is.

In der Winkelzone 47 ist eine Öffnung 47', die in Form einer nierenförmigen Ausfräsung ausgebildet ist, vorgesehen, welche in Verbindung mit einer Druckbeaufschlagungseinrichtung steht. Über die so hergestellte Verbindung wird Druckluft in die Aufnahmebohrung 14 geblasen, so daß die leere Zigarettenhülse 30, die gegebenenfalls ein Mundstückteil mit Filter aufweist, aus der Aufnahmebohrung 14 herausgeblasen und zu der zugeordneten Austrageinrichtung 29 gefördert wird.In the angular zone 47 there is an opening 47 ', which is designed in the form of a kidney-shaped cutout and is connected to a pressurization device. Compressed air is blown into the receiving bore 14 via the connection thus produced, so that the empty cigarette tube 30, which may have a mouthpiece part with a filter, is blown out of the receiving bore 14 and conveyed to the associated discharge device 29.

In einer weiteren Winkelzone 48 ist eine Öffnung 48' vorgesehen, die als nierenförmige Ausfräsung ausgebildet ist und die ebenfalls mit einer Druckluftbeaufschlagungseinrichtung in Verbindung stehen kann. Bei dieser in der Winkelzone 48 liegenden Öffnung 48' zur Druckluftbeaufschlagung werden die Aufnahmebohrungen 14 von gegebenenfalls haften gebliebenen Tabakresten oder auch Resten der Zigarettenhülse 30 befreit. Hierdurch lassen sich Verunreinigungen der Aufnahmebohrungen 14 vermeiden, die zu einer Funktionsstörung der Vorrichtung 1 führen könnten.In a further angular zone 48, an opening 48 'is provided, which is designed as a kidney-shaped cutout and which can likewise be connected to a compressed air application device. In this lying in the angular zone 48 Opening 48 'for pressurized air, the receiving bores 14 are freed of tobacco residues or residues of the cigarette tube 30 that may have adhered. In this way, contamination of the receiving bores 14, which could lead to a malfunction of the device 1, can be avoided.

Wie aus Fig. 1 zu ersehen ist, ist an dem hinter der Lagerplatte 3 liegenden Ende der Welle 6 axial im Abstand der Antriebsmotor 4 für die auf der Welle 6 sitzende Muldentrommel 7 und die Lochtrommel 8 vorgesehen. Dem Antriebsmotor 4 ist ein Tachogenerator 50 zugeordnet, welcher mit der Welle 6 zur Drehzahlregelung desselben zusammenarbeitet. Ferner sitzt auf dieser Welle 6 in Fig. 1 in Richtung nach rechts gesehen hinter dem Tachogenerator 50 eine Taktscheibe 51, welche dort einstellbar vorgesehen ist. Diese Taktscheibe 51 ist in Fig. 4 der Zeichnung nähere gezeigt und arbeitet mit einem Näherungsinitiator 52 zusammen, welcher über die nicht näher dargestellte Steuerungseinheit in Verbindung mit der Taktscheibe 51 den genauen Arbeitstakt der Vorrichtung 1 bestimmt. Die Taktscheibe 51 hat regelmäßig über den Umfang verteilt zahnförmige Vorsprünge 53 und Vertiefungen 54, die zwischen jeweils zwei benachbarten zahnförmigen Vorsprüngen 53 begrenzt werden. Auch ist die Taktscheibe 51 konzentrisch zur Mittelachse der Welle 6 mit einer kreisförmigen Anordnung von Löchern 55 versehen, welche in regelmäßigen Winkelabständen angeordnet sind und gleiche Abmessungen haben. Beim dargestellten Beispiel sind acht derartige Löcher 55 vorgesehen.As can be seen from FIG. 1, at the end of the shaft 6 located behind the bearing plate 3, the drive motor 4 for the trough drum 7 and the perforated drum 8 seated on the shaft 6 is axially spaced apart. A tachogenerator 50 is associated with the drive motor 4 and cooperates with the shaft 6 for speed control thereof. Furthermore, a clock disk 51 is seated on this shaft 6 in FIG. 1 in the direction to the right behind the tachometer generator 50, which is provided there adjustable. This clock disk 51 is shown in more detail in FIG. 4 of the drawing and works together with a proximity initiator 52, which determines the exact working cycle of the device 1 via the control unit (not shown in more detail) in connection with the clock disk 51. The timing disk 51 has tooth-shaped projections 53 and depressions 54 which are regularly distributed over the circumference and are delimited between two adjacent tooth-shaped projections 53. The clock disk 51 is also provided concentrically with the central axis of the shaft 6 with a circular arrangement of holes 55 which are arranged at regular angular intervals and have the same dimensions. In the example shown, eight such holes 55 are provided.

Nach der Erfindung wird die voranstehend anhand der Fig. 1 bis 4 erläuterte Vorrichtung 1 zur Tabakrückgewinnung aus fehlerhaften Zigaretten gemäß einem weiteren Gedanken nach der Erfindung auf die nachstehend näher beschriebene Weise betrieben. Selbstverständlich handelt es sich bei diesem Betriebsverfahren um eine bevorzugte Vorgehensweise zum Betreiben der Vorrichtung 1, und es lassen sich zahlreiche Abänderungen bezüglich des Arbeitsablaufes vornehmen, die man unter Abstimmung auf die jeweils gewünschten Gegebenheiten ohne weiteres vornehmen kann.According to the invention, the device 1 for tobacco recovery from defective cigarettes explained above with reference to FIGS. 1 to 4 is operated according to a further idea according to the invention in the manner described in more detail below. Of course, this operating method is a preferred procedure for operating the device 1, and numerous changes can be made with regard to the workflow, which can be coordinated with the can make any desired circumstances without further notice.

Als wesentliche Bauteile umfaßt bei der erfindungsgemäßen Vorrichtung 1 eine Steuereinrichtung 56 die voranstehend erläuterte Taktscheibe 51, den zugeordneten Näherungsinitiator 52, den Steuerring 26 und das Kurvensegment 24, über welches die Druckbolzen 22 im Führungsring 21 beaufschlagt werden. Die Vereinzelungs- und Transporteinrichtung 36 umfaßt die Muldentrommel 7 und die mit dieser zusammenarbeitende Abweis-Vieleckrolle 10. Zuerst werden beim erfindungsgemäßen Betriebsverfahren mit Hilfe der Abweis-Vieleckrolle 10 und der Muldentrommel 7 der Vereinzelungs- und Transporteinrichtung 36 die Filterzigaretten 16' im Vorratsmagazin 28 für fehlerhafte Zigaretten vereinzelt und einzeln in die entsprechenden muldenförmigen Vertiefungen 9 der Muldentrommel 7 überführt. Während der Drehbewegung der Muldentrommel 7 in Richtung des in Fig. 2 gezeigten Pfeils werden die so vereinzelten Filterzigaretten 16' in den muldenförmigen Vertiefungen 9 in Umfangsrichtung weitertransportiert. Nach einer vorbestimmten Zeit, die durch den Winkelbereich der Winkelzone 41 des Steuerrings 26 bestimmt ist, werden die vereinzelten Filterzigaretten 16' von den muldenförmigen Vertiefungen 9 der Muldentrommel 7 geringfügig in die Aufnahmebohrungen 14 der Lochtrommel 8 eingeführt. Über die Öffnung 43' in der Winkelzone 43 des Steuerrings 26 wird dann ein Unterdruck bzw. Saugdruck an die Aufnahmebohrungen 14 angelegt, um die jeweils vereinzelte Zigarette 16 in die Aufnahmebohrung 14 einzusaugen. Über die Öffnung 44' in der Winkelzone 44 des Steuerrings 26 kann ein noch stärkerer Saugdruck angelegt werden, um auch stark deformierte Zigaretten 16 so weit in die jeweilige Aufnahmebohrung 14 einzusaugen, daß ihr Mundstückteil an der der Lochtrommel 8 zugewandten Stirnfläche des Steuerrings 26 anliegt. Über das Kurvensegment 24, welches auf die Rollen 23 der Rollenbolzen 22 drückt, werden die Fixiernadeln 18 entgegen der Wirkung der Kraft der Federn 19 vorzugsweise an zwei axial beabstandeten Stellen über die radialen Öffnungen 20 in das Mundstückteil der Zigarette 16 eingetrieben. Dann ist die Zigarette 16 hinsichtlich ihrer Lage in der Aufnahmebohrung 14 fixiert. Während dieses Vorgangs wird über die Durchgangsöffnung 45' in der Winkelzone 45 des Steuerrings 26 und den Sensor 35 festgestellt, ob sich in der Aufnahmebohrung 14 eine Zigarette 16 befindet oder nicht. Vorausgesetzt, daß das Abfrageergebnis positiv ist, dreht sich dann der Steuerring 26 weiter, und über die Öffnung 46' in der Winkelzone 46 erfolgt eine Druckluftbeaufschlagung mit Hilfe eines Überdrucks oder Blasdrucks, der in Axialrichtung auf die Aufnahmebohrung 14 gerichtet ist und dort einwirkt. Hierdurch wird der Tabak aus der mit Hilfe der Fixiereinrichtung 17 lagefixierten Zigarette 16 ausgeblasen und wird mit Hilfe des Blasdrucks zu der Austrageinrichtung 33 für den Tabak befördert. Beim Weiterdrehen der beiden Trommeln 7 und 8 sowie des damit verbundenen Führungsringes 21 kommen die Rollen 23 von dem Kurvensegment 24 frei, und die Fixiernadeln 18 werden mit Hilfe der Rückholfedern 19 wiederum in die radiale Öffnung 20 in der Lochtrommel 8 eingefahren. Somit wird die vom Tabak freigeblasene, d. h. leere, Zigarettenhülse 30 freigegeben. Über die Öffnung 47' in der Winkelzone 47 des Steuerrings 26 wird dann nochmals ein Blasdruck angelegt, mittels dem die leere Zigarettenhülse 30 aus der Aufnahmebohrung 14 herausgeblasen und zu der Austrageinrichtung 29 für die Zigarettenhülse 30 mit Hilfe des Blasdrucks gefördert wird. Über die Rutsche 31 der Austrageinrichtung 29 wird dann die leere Zigarettenhülse 30 zu einem nicht näher dargestellten, geeigneten Auffangbehältnis transportiert, in welchem die leeren Zigarettenhülsen 30 gesammelt werden.The essential components in the device 1 according to the invention include a control device 56, the above-described clock disk 51, the associated proximity initiator 52, the control ring 26 and the cam segment 24, via which the pressure bolts 22 in the guide ring 21 are acted upon. The separating and transport device 36 comprises the bowl drum 7 and the rejecting polygon roller 10 cooperating therewith. First, in the operating method according to the invention using the rejecting polygon roll 10 and the bowl drum 7 of the separating and transport device 36, the filter cigarettes 16 'in the storage magazine 28 for faulty cigarettes isolated and transferred individually into the corresponding trough-shaped depressions 9 of the trough drum 7. During the rotary movement of the trough drum 7 in the direction of the arrow shown in FIG. 2, the filter cigarettes 16 ′ thus separated are transported further in the trough-shaped depressions 9 in the circumferential direction. After a predetermined time, which is determined by the angular range of the angular zone 41 of the control ring 26, the isolated filter cigarettes 16 'are inserted slightly from the trough-shaped depressions 9 of the trough drum 7 into the receiving bores 14 of the perforated drum 8. A negative pressure or suction pressure is then applied to the receiving bores 14 via the opening 43 ′ in the angular zone 43 of the control ring 26 in order to suck up the isolated cigarette 16 into the receiving bore 14. An even stronger suction pressure can be applied via the opening 44 'in the angular zone 44 of the control ring 26 in order to suck even strongly deformed cigarettes 16 into the respective receiving bore 14 so that their mouthpiece part rests on the end face of the control ring 26 facing the perforated drum 8. About the curve segment 24, which presses on the rollers 23 of the roller pin 22, the fixing needles 18 against the action of the force of the springs 19 are preferably at two axially spaced locations via the radial openings 20 in the mouthpiece part of the Cigarette 16 driven. The position of the cigarette 16 in the receiving bore 14 is then fixed. During this process, it is determined via the through opening 45 ′ in the angular zone 45 of the control ring 26 and the sensor 35 whether or not there is a cigarette 16 in the receiving bore 14. Provided that the query result is positive, the control ring 26 then rotates further, and via the opening 46 'in the angular zone 46, compressed air is applied with the aid of an overpressure or blowing pressure which is directed in the axial direction onto the receiving bore 14 and acts there. As a result, the tobacco is blown out of the cigarette 16 fixed in position with the aid of the fixing device 17 and is conveyed to the discharge device 33 for the tobacco with the aid of the blowing pressure. When the two drums 7 and 8 and the guide ring 21 connected therewith continue to rotate, the rollers 23 come free from the cam segment 24, and the fixing needles 18 are in turn retracted into the radial opening 20 in the perforated drum 8 with the aid of the return springs 19. Thus, the empty, ie empty, cigarette tube 30 is released. A blowing pressure is then again applied via the opening 47 'in the angular zone 47 of the control ring 26, by means of which the empty cigarette tube 30 is blown out of the receiving bore 14 and conveyed to the discharge device 29 for the cigarette tube 30 by means of the blowing pressure. The empty cigarette tube 30 is then transported via the chute 31 of the discharge device 29 to a suitable collecting container (not shown in more detail) in which the empty cigarette tubes 30 are collected.

Bei einer weiteren Drehbewegung des Steuerrings 26 wird über eine Öffnung 48' in der Winkelzone 48 des Steuerrings 26 nochmals ein Blasdruck angelegt, mittels welchem die Aufnahmebohrung 14 von dort haften gebliebenen Rückständen freigeblasen wird.With a further rotary movement of the control ring 26, a blowing pressure is again applied via an opening 48 ′ in the angular zone 48 of the control ring 26, by means of which the receiving bore 14 is blown free from residues adhering there.

Nach diesen voranstehend beschriebenen Arbeitsschritten ist dann ein kompletter Arbeitszyklus abgeschlossen, und die Trommeln 7 und 8 sowie der Steuerring 26 haben dann eine Drehbewegung von 360° um die Achse der Welle 6 ausgeführt. Unter Steuerung mit Hilfe der Steuereinrichtung 56 wird dann ein weiterer Arbeitszyklus ausgeführt.After these work steps described above, a complete work cycle is then completed and the drums 7 and 8 and the control ring 26 then have a rotational movement of 360 ° around the axis of the shaft 6. A further work cycle is then carried out under control with the aid of the control device 56.

Wie die vorstehenden Ausführungen gezeigt haben, ermöglicht die erfindungsgemäße Vorrichtung 1 eine kontinuierliche Rückgewinnung von Tabak aus fehlerhaften Zigaretten unter Verwirklichung eines vollautomatischen gesteuerten Arbeitsablaufes, so daß man mit Hilfe der erfindungsgemäßen Vorrichtung 1 schnell und zuverlässig den Tabak einer Vielzahl von fehlerhaften Zigaretten rückgewinnen kann, der dann nach einer Zwischenaufbereitung wiederum bei der Zigarettenherstellung eingesetzt werden kann. Versuche haben gezeigt, daß man mit Hilfe der Vorrichtung 1 nach der Erfindung für etwa 100 Zigaretten, etwa 12 s benötigt, um den Tabak rückzugewinnen und gesondert hierzu die leeren Zigarettenhülsen auszusondern. Die Vorrichtung 1 ermöglicht ferner eine schonende Trennung von Zigarettenhülse 30 und Tabakanteil, so daß eine zuverlässige Überprüfung der geforderten Produktqualität erzielt wird. Dadurch lassen sich die Qualitätsanforderungen sichern und wesentlich verbessern.As the above explanations have shown, the device 1 according to the invention enables a continuous recovery of tobacco from defective cigarettes while realizing a fully automatic, controlled workflow, so that the device 1 according to the invention can be used to quickly and reliably recover the tobacco of a large number of defective cigarettes which can then be used in cigarette manufacture after intermediate processing. Experiments have shown that using the device 1 according to the invention, it takes about 100 seconds for about 100 cigarettes to recover the tobacco and separate the empty cigarette tubes for this purpose. The device 1 also enables a gentle separation of the cigarette tube 30 and the tobacco portion, so that a reliable check of the required product quality is achieved. This enables the quality requirements to be secured and significantly improved.

In einer darüber hinaus weiteren vorteilhaften Ausgestaltung der Erfindung können beispielsweise Mikroprozessorsteuerungen und dgl. verwendet werden, um eine schnellere und kompakte Auswertung der für die Steuerung des Arbeitsablaufes wesentlichen Daten und Signale zu erreichen.In a further advantageous embodiment of the invention, for example, microprocessor controls and the like can be used in order to achieve a faster and more compact evaluation of the data and signals essential for the control of the workflow.

BezugszeichenReference numerals

11
Vorrichtung zur Tabakrückgewinnung aus fehlerhaften Zigaretten insgesamtTotal tobacco recovery device from defective cigarettes
22nd
GrundplatteBase plate
33rd
LagerplatteBearing plate
44th
AntriebsmotorDrive motor
55
TrommelkombinationDrum combination
66
Wellewave
77
MuldentrommelDump drum
88th
LochtrommelPerforated drum
99
muldenförmige Vertiefungentrough-shaped depressions
1010th
Abweis-VieleckrolleProtection polygon roller
1111
Motor für Abweis-Vieleckrolle 10Deflection polygon roller motor 10
1212
SchraubverbindungScrew connection
1313
StiftverbindungPin connection
1414
Aufnahmebohrungen in Lochtrommel 8Location holes in perforated drum 8
1515
AblaufschrägenRun-off slopes
1616
Zigarette in Aufnahmebohrung 14Cigarette in mounting hole 14
16'16 '
fehlerhafte Zigarette im Magazinfaulty cigarette in the magazine
1717th
Fixiereinrichtung insgesamtTotal fixation device
1818th
FixiernadelnFixing needles
1919th
Federnfeathers
2020th
radiale Öffnungenradial openings
2121
FührungsringGuide ring
2222
Druckbolzen bzw. RollenbolzenPush pin or roller pin
2323
Rollenroll
2424th
KurvensegmentCurve segment
2525th
Rückseite von Lochtrommel 8Back of perforated drum 8
2626
Steuerring insgesamtTotal control ring
2727
Feder- und BolzeneinrichtungSpring and bolt device
2828
Vorratsmagazin für fehlerhafte Zigaretten insgesamtTotal magazine for defective cigarettes
2929
Austrageinrichtung für ZigarettenhülsenDischarge device for cigarette tubes
3030th
ZigarettenhülsenCigarette tubes
3131
Rutscheslide
3232
vordere Stirnseite von Lochtrommel 8front end of perforated drum 8
3333
Austrageinrichtung für TabakDischarge device for tobacco
3434
flexibles Rohrstückflexible pipe section
3535
Sensorsensor
3636
Vereinzelungs- und Transporteinrichtung insgesamtSeparation and transport equipment as a whole
3737
photoelektische ErfassungseinrichtungPhotoelectical detection device
3838
Tabaktobacco
4141
Winkelzone des Steuerrings 26Angular zone of the control ring 26
4242
Winkelzone des Steuerrings 26Angular zone of the control ring 26
4343
Winkelzone des Steuerrings 26Angular zone of the control ring 26
43'43 '
Öffnungopening
4444
Winkelzone des Steuerrings 26Angular zone of the control ring 26
44'44 '
Öffnungopening
4545
Winkelzone des Steuerrings 26Angular zone of the control ring 26
45'45 '
Öffnungopening
4646
Winkelzone des Steuerrings 26Angular zone of the control ring 26
46'46 '
Öffnungopening
4747
Winkelzone des Steuerrings 26Angular zone of the control ring 26
47'47 '
Öffnungopening
4848
Winkelzone des Steuerrings 26Angular zone of the control ring 26
48'48 '
Öffnungopening
5050
Tachogenerator für Motor 4Tachometer generator for motor 4
5151
TaktscheibeClock disk
5252
NäherungsinitiatorProximity initiator
5353
zahnförmige Vorsprüngetooth-shaped projections
5454
VertiefungenIndentations
5555
Löcher in kreisförmiger AnordnungHoles in a circular arrangement
5656
Steuereinrichtung insgesamtTotal control device

Claims (20)

  1. Device for the recovery of tobacco from defective cigarettes which has:
    a) a storage magazine (28) for defective cigarettes (16),
    b) an isolation and transportation apparatus (36) with a trough drum (7) rotating about its axis, which drum has a number of trough-shaped recesses (9) distributed regularly around the circumference,
    c) a fixing apparatus (17) for the isolated cigarettes (16),
    d) a compressed-air impacting device which blows the tobacco out of each of the fixed cigarettes (16),
    e) a receiving device for the blown-out tobacco and separate to this for the cigarette tubes (30) and
    f) an operation-controlling device (56) for the harmonized control of the apparatus of the device (1),
    characterized in that the following are provided:
    g) a perforated drum (8) which has receiving bores (14) axially in alignment with the trough-shaped recesses (9) of the trough drum (7), is connected in axial direction to the trough drum (7) and is connected in rotation-resistant manner to the latter,
    h) a suction apparatus (43', 44', 26) for sucking the cigarettes (16') isolated at the trough drum (7) into the receiving bore (14) until the mouthpiece of the cigarette in question (16) lies in the vicinity of the front face (25) of the perforated drum (8) facing away from the trough drum (7),
    i) the fixing apparatus (17) is formed of at least one radially movable fixing needle (18) per receiving bore (14) in the region of the mouthpieces of the cigarettes (16), and
    j) the control apparatus (56) has a control ring (26), arranged in axial extension of the perforated drum (8), which is sub-divided into predetermined angle zones (41-48) for the determination of the operating sequence of the device (1).
  2. Device according to claim 1, characterized in that two axially spaced fixing needles (18) are allotted to each receiving bore (14).
  3. Device according to claim 1 or 2, characterized in that, for the impacting of the fixing needles (18) in the direction of their fixing position, a guide ring (21) is provided which surrounds the perforated drum (8) and is connected firmly to it, and in which a compressed-air impacting pin (22) is arranged radially movable for each fixing needle (18) or each pair of fixing needles.
  4. Device according to claim 3, characterized in that the pressure pins (22) are impactable by means of a curved control (24) for the fixing, and the fixing needles (18) remain held in their fixing position at least during the blowing-out of the cigarettes by means of compressed air.
  5. Device according to one of claims 1 to 4, characterized in that the control ring (26) is positioned elastically in axial direction of the perforated drum (8) in such a way that it lies against the front face (25) of the perforated drum (8) and forms a limiting means for the penetration depth of the cigarettes (16) into the receiving bores (14).
  6. Device according to one of claims 1 to 5, characterized in that the control ring (26), during one complete rotation, passes through at least one predetermined angle zone (43, 44) as control zone for the application of an underpressure for sucking the cigarettes (16) into the receiving bores (14) and one angle zone (46) for the introduction of compressed air for blowing out the tobacco (38) from the cigarette tubes (30) into the receiving bores (14).
  7. Device according to claim 6, characterized in that the control ring (26) passes through another angle zone (47) as control zone for the introduction of compressed air for ejecting the empty cigarette tubes (30).
  8. Device according to claim 6 or claim 7, characterized in that openings (43' to 48') are provided in the predetermined control and angle zones (43-48), via which a connection with the compressed air impacting apparatus or with the suction air-producing apparatus is producible.
  9. Device according to one of claims 1 to 8, characterized in that the control apparatus (56) comprises a cycle disk (51) for determining the operating sequence which is arranged at an axial distance from the control ring (26) and controls the other controlling apparatuses of the device (1).
  10. Device according to one of claims 1 to 9, characterized in that the trough drum (7) and the perforated drum (8) are arranged on a common rotating shaft (6).
  11. Device according to claim 10, characterized in that the control ring (26) and optionally the cycle disk (51) are also arranged on the common shaft (6).
  12. Device according to one of the preceding claims, characterized in that discharge slopes (15) inclined to the receiving bores (14) are provided at the transition between the trough-shaped recesses (9) of the trough drum (7) and the receiving bores (14) in the perforated drum (8).
  13. Device according to one of the preceding claims, characterized in that a polygonal deflection roller (10) is assigned axis-parallel to the trough drum (7) to support the isolating of the defective cigarettes (16').
  14. Device according to claim 13, characterized in that the polygonal deflection roller (10) rotates in the same direction as the trough drum (7).
  15. Device according to claim 13 or claim 14, characterized in that the trough drum (7) and the perforated drum (8) connected to it in rotation-resistant manner and the polygonal deflection roller (10) are driven by a common driving apparatus.
  16. Device according to one of the preceding claims, characterized in that a filter is provided at the mouth piece part of the cigarette (16).
  17. Device according to one of the preceding claims, characterized by a sensor (35) for monitoring the charging of the receiving bores (14) with cigarettes, which takes the device (1) out of service if there is a cigarette missing from the receiving bore (14).
  18. Device according to one of the preceding claims, characterized by a photoelectric detection apparatus (37) for the cigarettes (16) to be blown out, which immediately counts the latter.
  19. Process for the operation of the device according to one of the preceding claims, characterized in that, in cooperation with the polygonal deflection roller, the defective cigarettes coming from the magazine are isolated and transferred into the corresponding trough-shaped recesses of the trough drum, the filter cigarettes are transported further in the peripheral direction in the trough-shaped grooves, on the rotating movement of the trough drum the filter cigarettes from the trough-shaped recesses are pushed axially into the receiving bores of the perforated drum and the filter cigarettes are sucked into the receiving bores with the help of an applied suction pressure or under-pressure, until their mouthpiece part lies against the control ring surface, the pressure pins are impacted upon via a curved control apparatus in such a way that the needles of the fixing apparatus penetrate the cigarette in the mouthpiece region to fix their position, that an overpressure or blowing pressure is applied in axial direction of the receiving bores, that the tobacco is blown out of the cigarette tubes and conveyed to a discharge apparatus for tobacco, the fixing apparatus releases the cigarette tube in the receiving bores and further compressed-air pulse is applied via the control apparatus to the receiving bores in the perforated drum in such a way that the cigarette tubes with the allotted mouthpiece part are blown out of the receiving bore and conveyed to an allotted discharge apparatus,
    whereby the controlled operating procedure takes place with the help of the controlling apparatus which comprises the cycle disk, the control ring, the guide ring and the curved control working in conjunction therewith.
  20. Process according to claim 19, characterized in that, prior to the start of a fresh operating cycle, the receiving bores of the perforated drum are again impacted upon with a compressed-air pulse by means of the control ring in order to blow the receiving bores clear of deposits adhering there.
EP91115398A 1990-09-14 1991-09-11 Apparatus for reclaiming tobacco from defective cigarettes and method for its realisation Expired - Lifetime EP0475395B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91115398T ATE98444T1 (en) 1990-09-14 1991-09-11 APPARATUS FOR RECOVERING TOBACCO FROM DEFECTIVE CIGARETTES AND METHOD OF OPERATING THE SAME.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4029263A DE4029263C1 (en) 1990-09-14 1990-09-14
DE4029263 1990-09-14

Publications (2)

Publication Number Publication Date
EP0475395A1 EP0475395A1 (en) 1992-03-18
EP0475395B1 true EP0475395B1 (en) 1993-12-15

Family

ID=6414296

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91115398A Expired - Lifetime EP0475395B1 (en) 1990-09-14 1991-09-11 Apparatus for reclaiming tobacco from defective cigarettes and method for its realisation

Country Status (4)

Country Link
US (1) US5207735A (en)
EP (1) EP0475395B1 (en)
AT (1) ATE98444T1 (en)
DE (2) DE4029263C1 (en)

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CN103082408A (en) * 2013-03-01 2013-05-08 昆明雷恩科技有限公司 Equipment for recovering cut tobacco in defective cigarettes

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DE19519961C2 (en) * 1995-05-31 1997-07-03 Mrd Medical Research And Dev P Splitting device for tobacco-filled cigarette tubes and tobacco recovery device with it
DE102005024780A1 (en) * 2005-05-31 2006-12-14 Jacobi Systemtechnik Gmbh Assembly to extract tobacco from faulty cigarettes, for recovery, has a drum to hold fixed cigarettes in mantle openings and a second drum with blower mouthpieces to blow the tobacco from the paper tubes
US20080017203A1 (en) * 2006-07-19 2008-01-24 Barry Smith Fagg Apparatus and methods for manufacturing cigarette tubes
ITVE20120008A1 (en) * 2012-03-06 2013-09-07 Comas Costruzioni Macchine Specia Li S P A METHOD AND EQUIPMENT FOR RECOVERY OF CIGARETTE TOBACCO.
CN103082407B (en) * 2013-03-01 2014-11-19 昆明雷恩科技有限公司 Device for continuously separating paper tubes from cut tobacco
CN103099312B (en) * 2013-03-01 2014-11-19 昆明雷恩科技有限公司 Flexible blowing nozzle
EP2964036A1 (en) * 2013-03-06 2016-01-13 COMAS - COSTRUZIONI MACCHINE SPECIALI - S.p.A. Method and apparatus for the recovery of tobacco from cigarettes with filter
ITBO20130132A1 (en) * 2013-03-27 2014-09-28 Gd Spa METHOD AND MACHINE FOR THE PRODUCTION OF CIGARETTES, WITH RECOVERY OF TOBACCO FROM THE DEFECTIVE CIGARETTES.
US9302800B2 (en) 2014-01-06 2016-04-05 Cnjfw & Son, Llc System and method for forming fluid mixtures
PL230370B1 (en) 2014-06-12 2018-10-31 Int Tobacco Machinery Poland Spolka Z Ograniczona Odpowiedzialnoscia Method and the device for removing tobacco from cigarettes
CN106418674B (en) * 2015-08-06 2017-12-26 红塔烟草(集团)有限责任公司 The recycling and processing device of Incomplete Cigarette
CN105167179B (en) * 2015-09-30 2017-01-11 北京天申正祥科技有限公司 Online waste cigarette cut tobacco recovery system

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Also Published As

Publication number Publication date
DE59100731D1 (en) 1994-01-27
EP0475395A1 (en) 1992-03-18
ATE98444T1 (en) 1994-01-15
US5207735A (en) 1993-05-04
DE4029263C1 (en) 1992-02-13

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