EP2759215A1 - Device and method for cutting tobacco from a tobacco cake - Google Patents

Device and method for cutting tobacco from a tobacco cake Download PDF

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Publication number
EP2759215A1
EP2759215A1 EP14152391.0A EP14152391A EP2759215A1 EP 2759215 A1 EP2759215 A1 EP 2759215A1 EP 14152391 A EP14152391 A EP 14152391A EP 2759215 A1 EP2759215 A1 EP 2759215A1
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EP
European Patent Office
Prior art keywords
cutting
tobacco
drum
knife
cutting edge
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.)
Withdrawn
Application number
EP14152391.0A
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German (de)
French (fr)
Inventor
Dietmar Zielke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koerber Technologies GmbH
Original Assignee
Hauni Maschinenbau GmbH
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Filing date
Publication date
Application filed by Hauni Maschinenbau GmbH filed Critical Hauni Maschinenbau GmbH
Publication of EP2759215A1 publication Critical patent/EP2759215A1/en
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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B7/00—Cutting tobacco
    • A24B7/04—Cutting tobacco by machines with revolving knives
    • A24B7/08—Cutting tobacco by machines with revolving knives with several knives which act one after the other
    • A24B7/12—Cutting tobacco by machines with revolving knives with several knives which act one after the other with cutter axes transverse to the feeding direction

Definitions

  • the invention relates to a device, designed and arranged for cutting tobacco from a supplied in the transport direction T tobacco cake comprising a circumferentially drivable around a drum axis I cutterhead, wherein the cutterhead is associated with at least one cutting knife having a cutting edge and at least with this on the Extending circumference U of the cutterhead and describes a cutting circle S K when circulating around the drum axis I.
  • the invention further relates to a method for cutting tobacco from a tobacco cake fed in the transport direction T with a device for cutting tobacco, in particular according to one of claims 1 to 6, comprising the steps: feeding the tobacco cake in the transport direction T to the device, Cutting the supplied tobacco cake by means of at least one arranged on a circumferentially driven around a drum axis cutter blade I by the tobacco cake enters a formed by at least one beyond the circumference U of the cutterhead cutting edge of the cutting blade by the circulation around the drum axis I formed cutting circle S K.
  • Such devices and methods are used in the tobacco processing industry to cut tobacco fibers from a previously compacted, cut-resistant tobacco cake with the or each cutter blade severing blade.
  • the tobacco cake is transported by means of a feed device, which may also be designed and configured for compacting the tobacco cake, into the region of a mouthpiece or a gap of the feed device.
  • the tobacco cake is usually fed continuously in the transport direction T preferably horizontally in the direction of the device, so that the tobacco cake from the gap protrudes or protrudes.
  • the device for cutting itself has a cutterhead with at least one cutting knife, but usually several cutting blades, which are distributed uniformly over the circumference of the cutterhead.
  • each cutting knife cuts with its cutting edge across the width of tobacco fibers from the tobacco cake.
  • tobacco fibers are separated from the tobacco cake by engagement of the cutting circle S K in the tobacco cake.
  • the cutting blades wear out.
  • the separating blades to compensate for the reduction in length are readjustable, such that the cutting blades always protrude at least with their cutting edges by a constant amount over the circumference U of the cutterhead.
  • the circumferentially drivable knife drum is in devices of the type mentioned, as for example from the DE 10 2010 049 773 A1 is known from the Applicant's home, arranged location and adjustable. This means that the knife drum is aligned at a fixed, unchangeable angle to the tobacco cake.
  • the angle of attack is in some users at 0 °, which means that each cutting edge while passing around the drum axis I always coincides with its entire width S B on the tobacco cake, so that a line-shaped line of contact between the cutting edge and tobacco cake to perform a punch-like or guillotinenartigen Cut creates and the tobacco cake is cut across its entire width at the same time.
  • the angle of attack is about 5 °, whereby a punctual contact between the cutting edge and tobacco cake is created, with the juxtaposition of the contact point leads to a cutting line, which is also referred to as a paper cut.
  • a cutting line which is also referred to as a paper cut.
  • each cutterhead or its orientation to the tobacco cake is formed only for a single cutting guide or a single sectional image. This means that the requirement of a changed angle of attack between cutterhead and tobacco cake leads to another cutting device use. For example, if a customer wants to cut two different types of tobacco that require a different angle of attack, the customer must use two separate cutting devices, which leads to a high cost and on the other to increased space requirements.
  • the invention is therefore an object of the invention to provide a flexible cutting device.
  • the object continues to be to propose a corresponding method.
  • a device having the features mentioned above in that the cutterhead with its drum axis I in a plane E parallel to the cutting edge for adjusting the angle of attack of the cutterhead and thus the cutting edge of each cutting knife is made adjustable to the tobacco cake to be cut.
  • a flexible cutting device is created, which can be easily and quickly adapted to different types of tobacco, customer needs or the like. It is also possible to adjust the cutterhead to different mouthpiece or stomata openings and / or alignments. The adaptation may be gradual, e.g. in mechanically fixed steps, or continuously, whereby quasi an online setting of the angle of attack ⁇ is guaranteed.
  • the cutting edge of each cutting knife is aligned parallel to the drum axis I.
  • the adjustment and adjustment is particularly easy, since an adjustment of the cutterhead or the drum axis I in the same way affects the cutting edge.
  • the device is further developed in that the cutting edge of each cutting knife is rectilinear to the drum axis I. This enhances the aforementioned advantages, wherein it is particularly advantageous if the cutting edge is aligned parallel and rectified to the drum axis I.
  • the cutting edge of each cutting knife runs transversely to the transport direction T supplied tobacco cake.
  • the tobacco cake is in a horizontal plane in the transport direction T, wherein the cutting edge transversely, preferably at a right angle to the transport direction T extends. Due to the transverse cutting edge, this also hits the tobacco cake vertically from above.
  • the angle of attack is adjustable in a range of 0 ° to 10 °. This is a range of angles of attack can be realized with a single cutting device, so that can be dispensed with exchange or Umrüstrichen.
  • the device comprises a control and / or regulating unit, by means of which the adjustment of the cutterhead on the basis of determined cutting forces can be controlled and / or regulated.
  • the cutting forces are determined when cutting the tobacco cake.
  • the object is also achieved by a method with the steps mentioned above in that the cutterhead is adjusted with its drum axis I in a plane E parallel to the cutting edge to adjust the angle of attack of the cutterhead and thus the cutting edge of each cutting knife to be cut tobacco cake.
  • the angle of attack is adjusted in a range of 0 ° to 10 °.
  • the angle of attack is continuously adjusted.
  • the invention will be explained with reference to a device which is designed and arranged for cutting tobacco from a tobacco cake.
  • the invention can be applied both to a separate cutting device as a single component ("stand-alone device") as well as to an arrangement with such a cutting device and with a grinding device for grinding the cutting blade of the cutting device and be directed with a feeding device for feeding and / or compacting the tobacco cake.
  • the device 10 shown in the drawing which is designed and arranged for cutting tobacco 11 from a tobacco cake 12, comprises a circumferentially about a drum axis I drivable knife drum 13 with at least one cutting knife 14.
  • the knife drum 13 can also several cutting knife 14, for example eight, which are evenly distributed over the circumference.
  • the separating blades 14 protrude beyond the peripheral surface U of the cutterhead 13, and at least with a cutting edge 15.
  • the cutterhead 13 is driven in rotation about the drum axis 1 by drive means, not shown.
  • the cutting blades 14 describe with their cutting edges 15 a cutting circle S K , which always and regardless of the wear of the cutting blade 14 has the same diameter.
  • the cutting blades 14 are adjustable.
  • the blade advance is clocked or - preferably - formed continuously.
  • the cutterhead 13 itself is arranged or mounted on a frame, housing or the like.
  • This device 10 is characterized in that the cutterhead 13 with its drum axis I in a plane E parallel to the cutting edge 15 to adjust the angle of attack ⁇ of the cutterhead 13 and thus the cutting edge 15 of each cutting knife 14 to be cut tobacco cake 12 is adjustable ,
  • the knife drum 13 is flexible in position, not only in the linear direction on the tobacco cake 12 and away from it, but according to the invention also in the inclination.
  • the cutterhead 13 is tiltably formed and arranged so that the drum axis I can be inclined out of a horizontal plane E H , so that the drum axis I intersects the horizontal plane E H in order to vary the angle of attack ⁇ .
  • each cutting knife 14 may be aligned at an acute angle to the drum axis I of the cutterhead 13. This means that a separating knife 14 or its cutting edge 15 protrudes on one side more about the circumference U of the cutterhead 13 than on the opposite side. Preferably, however, the cutting edge 15 is aligned parallel to the drum axis I, so that the projection of the cutting edge 15 over the peripheral surface U of the cutterhead 13 over the entire width S B is equal.
  • the cutting edge 15 of each cutting blade 14 is alternatively or cumulatively also rectified to the drum axis I of the cutterhead 13. In the illustrated embodiment, the cutting edge 15 of each cutting knife 14 extends transversely to the direction in the transport direction T tobacco cake 12.
  • the orientation of the tobacco cake 12 can also vary, for example by the tobacco cake 12 is supplied at an acute angle to the horizontal plane E H and / or at an angle ⁇ 90 ° to the drum axis I.
  • the angle of attack ⁇ of the cutterhead 13 and thus the cutting edge 15 of each cutting knife 14 to be cut tobacco cake 12 is preferably adjustable in a range of 0 ° to 10 °.
  • the inclination can also be adjusted in the other direction than the direction shown, that is preferably in a range of 0 ° to -10 °.
  • the adjustment of the angle of attack ⁇ can be gradual or continuous.
  • the device 10 comprises means for determining the cutting forces of the cutting blades 14 and a control and / or regulating unit, by means of which the adjustment of the blade drum 13 on the basis of the determined cutting forces controllable and / or regulated, and more preferably automatically.
  • the device 10 according to the invention can be used as a single component ("stand-alone device”, see eg FIGS. 1 to 4 ) formed or component of an assembly 18 (see, eg FIG. 5 ), which in addition to the device 10 for cutting and the feeder 19 for forming and / or feeding the tobacco cake 12 also a Grinding device 16 includes, be. It is known to grind cutting knife 14 of a device 10 for cutting during the cutting process. By cutting the tobacco fibers 11 from the tobacco cake 12 and possible foreign matter in the tobacco cake 12, the cutting blades 14 are subject to wear. In addition to wear, there is also a considerable contamination by tobacco dust, tobacco sauces and the like. In particular, the tobacco sauces settle on the cutting edges 15 of the cutting blades 14.
  • the separating blades 14 are guided past the drum axis I on the device 16 for grinding during each rotation.
  • the separating blades 14 form or describe by the rotation about the drum axis I the cutting circle S K.
  • This cutting circle S K is in overlap with a grinding roller 17 which is driven to rotate about a grinding axis II, or bring their grinding circuit generated thereby.
  • the cutting circle S K and the grinding circle described by the grinding roller 17 must be touched or cut.
  • the grinding circuit intersects the cutting circle S K , so that each cutting knife 14 is reground cyclically, namely preferably once each drum revolution. By grinding the cutting blade 14 shorten this, which can be compensated by the Trennmesservorschub.
  • the drum axis I of the cutterhead 13 and the grinding axis II of the grinding drum 17 extend parallel and rectified to each other.
  • the drum axis I and the grinding axis II are parallel and oblique to each other.
  • the tobacco cake 12 is fed, for example, by means of the feed device 19 in the transport direction T to the cutterhead 13.
  • the portion of the tobacco cake 12 protruding in each case in the region of a mouthpiece or gap of the feed device 19 is guided by a separating knife 14, which is attached to a knife drum 13 which is driven in rotation is arranged, cut by the tobacco cake 12 enters into a formed by at least one on the circumference U of the cutterhead 13 protruding cutting edge 15 of the cutting blade 14 by circulation around the drum axis I cutting circle S K.
  • the cutterhead 13 is moved with its drum axis I in a plane E parallel to the cutting edge 15 to adjust the angle of attack ⁇ of the cutterhead 13 and thus the cutting edge 15 of each cutting knife 14 to the tobacco cake 12 to be cut.
  • the adjustment can be made gradually during the cutting process or continuously during the cutting process. It is also possible to set the cutterhead 13 to the desired angular position before executing a cutting process, for example, if a customer wants a so-called paper cut for a specific kind of tobacco.
  • the adjustment of the angle of attack ⁇ can be made almost arbitrarily with respect to the size. However, the angle of attack is preferably adjusted in a range from 0 ° to 10 ° or from 0 ° to -10 °.
  • the adjustment of the angle of attack ⁇ is carried out as mentioned preferably continuously.
  • the angle of attack ⁇ can be adjusted automatically as a function of the cutting forces. These are determined within the device 10 and forwarded to the control and / or regulating unit and processed by the latter.

Abstract

The apparatus (10) has a tobacco cake (12) which is provided circumferentially around a drum axis (1) drivable with a knife drum (13). The knife drum is associated with a separating blade (14) whose cutting edge portion (15) is extended by the circumference of the knife drum. The drum axis of the knife drum is plane parallel to the cutting edge for adjusting the angle of the blade drum, so that cutting edge portion of each separating blade is adjustable. An independent claim is included for method for cutting tobacco.

Description

Die Erfindung betrifft eine Vorrichtung, ausgebildet und eingerichtet zum Schneiden von Tabak von einem in Transportrichtung T zugeführten Tabakkuchen, umfassend eine umlaufend um eine Trommelachse I antreibbare Messertrommel, wobei der Messertrommel mindestens ein Trennmesser zugeordnet ist, das eine Schneidkante aufweist und mindestens mit dieser über den Umfang U der Messertrommel hinausragt und beim Umlauf um die Trommelachse I einen Schneidkreis SK beschreibt.The invention relates to a device, designed and arranged for cutting tobacco from a supplied in the transport direction T tobacco cake comprising a circumferentially drivable around a drum axis I cutterhead, wherein the cutterhead is associated with at least one cutting knife having a cutting edge and at least with this on the Extending circumference U of the cutterhead and describes a cutting circle S K when circulating around the drum axis I.

Des Weiteren betrifft die Erfindung ein Verfahren zum Schneiden von Tabak von einem in Transportrichtung T zugeführten Tabakkuchen mit einer Vorrichtung zum Schneiden von Tabak, insbesondere nach einem der Ansprüche 1 bis 6, umfassend die Schritte: Zuführen des Tabakkuchens in Transportrichtung T auf die Vorrichtung zu, Schneiden des zugeführten Tabakkuchens mittels mindestens eines an einer umlaufend um eine Trommelachse I angetriebenen Messertrommel angeordneten Trennmessers, indem der Tabakkuchen in einen durch mindestens eine über den Umfang U der Messertrommel hinausragende Schneidkante des Trennmessers durch den Umlauf um die Trommelachse I gebildeten Schneidkreis SK eintritt.The invention further relates to a method for cutting tobacco from a tobacco cake fed in the transport direction T with a device for cutting tobacco, in particular according to one of claims 1 to 6, comprising the steps: feeding the tobacco cake in the transport direction T to the device, Cutting the supplied tobacco cake by means of at least one arranged on a circumferentially driven around a drum axis cutter blade I by the tobacco cake enters a formed by at least one beyond the circumference U of the cutterhead cutting edge of the cutting blade by the circulation around the drum axis I formed cutting circle S K.

Solche Vorrichtungen und Verfahren kommen in der Tabak verarbeitenden Industrie zum Einsatz, um mit dem oder jedem Trennmesser der Messertrommel Tabakfasern von einem zuvor verdichteten, schnittfesten Tabakkuchen abzuschneiden. Dazu wird der Tabakkuchen mittels einer Zuführeinrichtung, die auch zum Verdichten des Tabakkuchens ausgebildet und eingerichtet sein kann, in den Bereich eines Mundstücks oder eines Spalts der Zuführeinrichtung transportiert. Der Tabakkuchen wird üblicherweise kontinuierlich in Transportrichtung T vorzugsweise horizontal in Richtung auf die Vorrichtung zugeführt, so dass der Tabakkuchen aus dem Spalt herausragt bzw. vorsteht. Die Vorrichtung zum Schneiden selbst weist eine Messertrommel mit mindestens einem Trennmesser, üblicherweise jedoch mehreren Trennmessern auf, die gleichmäßig über den Umfang der Messertrommel verteilt sind. Durch die Rotation der Messertrommel bilden die über den Umfang der Messertrommel hinausragenden Schneidkanten jedes Trennmessers den Schneidkreis SK. Wenn der Tabakkuchen in den Schneidkreis SK eintritt, schneidet jedes Trennmesser mit seiner Schneidkante über deren Breite Tabakfasern vom Tabakkuchen ab. Anders ausgedrückt werden durch Eingriff des Schneidkreises SK in den Tabakkuchen Tabakfasern vom Tabakkuchen getrennt. Dabei verschleißen die Trennmesser. Da der Schneidkreis SK jedoch stets einen identischen Radius aufweisen sollte, sind die Trennmesser zur Kompensation der Längenreduzierung nachjustierbar, derart, dass die Trennmesser mindestens mit ihren Schneidkanten stets um einen gleichbleibenden Betrag über den Umfang U der Messertrommel hinausragen.Such devices and methods are used in the tobacco processing industry to cut tobacco fibers from a previously compacted, cut-resistant tobacco cake with the or each cutter blade severing blade. For this purpose, the tobacco cake is transported by means of a feed device, which may also be designed and configured for compacting the tobacco cake, into the region of a mouthpiece or a gap of the feed device. The tobacco cake is usually fed continuously in the transport direction T preferably horizontally in the direction of the device, so that the tobacco cake from the gap protrudes or protrudes. The device for cutting itself has a cutterhead with at least one cutting knife, but usually several cutting blades, which are distributed uniformly over the circumference of the cutterhead. As a result of the rotation of the knife drum, the cutting edges of each cutting knife projecting beyond the circumference of the cutterhead form the cutting circle S K. When the tobacco cake enters the cutting circle S K , each cutting knife cuts with its cutting edge across the width of tobacco fibers from the tobacco cake. In other words, tobacco fibers are separated from the tobacco cake by engagement of the cutting circle S K in the tobacco cake. The cutting blades wear out. However, since the cutting circle S K should always have an identical radius, the separating blades to compensate for the reduction in length are readjustable, such that the cutting blades always protrude at least with their cutting edges by a constant amount over the circumference U of the cutterhead.

Die umlaufend antreibbare Messertrommel ist bei Vorrichtungen der genannten Art, wie sie z.B. aus der DE 10 2010 049 773 A1 aus dem Hause der Anmelderin bekannt ist, orts- und verstellfest angeordnet. Das bedeutet, dass die Messertrommel in einem festen, unveränderbaren Anstellwinkel zum Tabakkuchen ausgerichtet ist. Der Anstellwinkel liegt bei einigen Anwender bei 0°, was bedeutet, dass jede Schneidkante beim Umlauf um die Trommelachse I stets gleichzeitig mit ihrer gesamten Breite SB auf den Tabakkuchen trifft, so dass eine linienförmige Berührungslinie zwischen Schneidkante und Tabakkuchen zur Ausführung eines schlagmesserartigen oder guillotinenartigen Schnittes entsteht und der Tabakkuchen über seine gesamte Breite gleichzeitig geschnitten wird. Bei anderen Anwendern liegt der Anstellwinkel bei ca. 5°, wodurch eine punktuelle Berührung zwischen Schneidkante und Tabakkuchen entsteht, wobei die Aneinanderreihung der Berührungspunkt zu einer Schnittlinie führt, die auch als Scherenschnitt bezeichnet wird. In Abhängigkeit der Beschaffenheit des zu schneidenden Tabaks bzw. bei unterschiedlichen Tabakarten oder aufgrund spezifischer Kundenwünsche kann es jedoch notwendig sein, den Anstellwinkel zu verändern. Im Stand der Technik ist jede Messertrommel bzw. deren Ausrichtung zum Tabakkuchen nur für eine einzige Schnittführung bzw. ein einziges Schnittbild ausgebildet. Das bedeutet, dass das Erfordernis eines geänderten Anstellwinkels zwischen Messertrommel und Tabakkuchen dazu führt, eine andere Schneidvorrichtung einzusetzen. Wenn also beispielsweise ein Kunde zwei unterschiedliche Tabaksorten schneiden möchte, die einen voneinander abweichenden Anstellwinkel erfordern, muss der Kunde zwei separate Schneidvorrichtungen einsetzen, was zum einen zu hohen Kosten und zum anderen zu einem erhöhten Platzbedarf führt.The circumferentially drivable knife drum is in devices of the type mentioned, as for example from the DE 10 2010 049 773 A1 is known from the Applicant's home, arranged location and adjustable. This means that the knife drum is aligned at a fixed, unchangeable angle to the tobacco cake. The angle of attack is in some users at 0 °, which means that each cutting edge while passing around the drum axis I always coincides with its entire width S B on the tobacco cake, so that a line-shaped line of contact between the cutting edge and tobacco cake to perform a punch-like or guillotinenartigen Cut creates and the tobacco cake is cut across its entire width at the same time. For other users, the angle of attack is about 5 °, whereby a punctual contact between the cutting edge and tobacco cake is created, with the juxtaposition of the contact point leads to a cutting line, which is also referred to as a paper cut. Depending on the nature of the tobacco to be cut or with different types of tobacco or due to specific customer requirements, it may be necessary to change the angle of attack. In the prior art, each cutterhead or its orientation to the tobacco cake is formed only for a single cutting guide or a single sectional image. This means that the requirement of a changed angle of attack between cutterhead and tobacco cake leads to another cutting device use. For example, if a customer wants to cut two different types of tobacco that require a different angle of attack, the customer must use two separate cutting devices, which leads to a high cost and on the other to increased space requirements.

Der Erfindung liegt demnach die Aufgabe zugrunde, eine flexible Schneidvorrichtung zu schaffen. Die Aufgabe besteht weiterhin darin, ein entsprechendes Verfahren vorzuschlagen.The invention is therefore an object of the invention to provide a flexible cutting device. The object continues to be to propose a corresponding method.

Diese Aufgabe wird durch eine Vorrichtung mit den eingangs genannten Merkmalen dadurch gelöst, dass die Messertrommel mit ihrer Trommelachse I in einer Ebene E parallel zur Schneidkante zur Anpassung des Anstellwinkels der Messertrommel und damit der Schneidkante jedes Trennmessers zu dem zu schneidenden Tabakkuchen verstellbar ausgebildet ist. Damit ist eine flexible Schneidvorrichtung geschaffen, die einfach und schnell an unterschiedliche Tabakarten, Kundenwünsche oder dergleichen angepasst werden kann. Auch besteht die Möglichkeit, die Messertrommel auf unterschiedliche Mundstück- oder Spaltöffnungen und/oder -ausrichtungen einzustellen. Die Anpassung kann schrittweise, z.B. in mechanisch festgelegten Schritten, oder auch kontinuierlich erfolgen, wodurch quasi eine online-Einstellung des Anstellwinkels α gewährleistet ist.This object is achieved by a device having the features mentioned above in that the cutterhead with its drum axis I in a plane E parallel to the cutting edge for adjusting the angle of attack of the cutterhead and thus the cutting edge of each cutting knife is made adjustable to the tobacco cake to be cut. For a flexible cutting device is created, which can be easily and quickly adapted to different types of tobacco, customer needs or the like. It is also possible to adjust the cutterhead to different mouthpiece or stomata openings and / or alignments. The adaptation may be gradual, e.g. in mechanically fixed steps, or continuously, whereby quasi an online setting of the angle of attack α is guaranteed.

Vorteilhafterweise ist die Schneidkante jedes Trennmessers parallel zur Trommelachse I ausgerichtet. Dadurch ist die Einstellung und Anpassung besonders einfach möglich, da sich eine Verstellung der Messertrommel bzw. der Trommelachse I in gleicher Weise auf die Schneidkante auswirkt.Advantageously, the cutting edge of each cutting knife is aligned parallel to the drum axis I. As a result, the adjustment and adjustment is particularly easy, since an adjustment of the cutterhead or the drum axis I in the same way affects the cutting edge.

Erfindungsgemäß wird die Vorrichtung dadurch weitergebildet, dass die Schneidkante jedes Trennmessers gleichgerichtet zur Trommelachse I verläuft. Dies verstärkt die zuvor genannten Vorteile, wobei es besonders vorteilhaft ist, wenn die Schneidkante parallel und gleichgerichtet zur Trommelachse I ausgerichtet ist.According to the invention, the device is further developed in that the cutting edge of each cutting knife is rectilinear to the drum axis I. This enhances the aforementioned advantages, wherein it is particularly advantageous if the cutting edge is aligned parallel and rectified to the drum axis I.

Vorteilhafterweise verläuft die Schneidkante jedes Trennmessers quer zum in Transportrichtung T zugeführten Tabakkuchen. Vorzugsweise wird der Tabakkuchen in einer horizontalen Ebene in Transportrichtung T zugeführt, wobei die Schneidkante quer, vorzugsweise in einem rechten Winkel zur Transportrichtung T verläuft. Durch die quer verlaufende Schneidkante trifft diese auch senkrecht von oben auf den Tabakkuchen.Advantageously, the cutting edge of each cutting knife runs transversely to the transport direction T supplied tobacco cake. Preferably, the tobacco cake is in a horizontal plane in the transport direction T, wherein the cutting edge transversely, preferably at a right angle to the transport direction T extends. Due to the transverse cutting edge, this also hits the tobacco cake vertically from above.

In einer besonders bevorzugten Weiterbildung der Erfindung ist der Anstellwinkel in einem Bereich von 0° bis 10° verstellbar ausgebildet. Damit ist mit einer einzigen Schneidvorrichtung eine Bandbreite von Anstellwinkeln realisierbar, so dass auf Wechsel- oder Umrüsttätigkeiten verzichtet werden kann.In a particularly preferred embodiment of the invention, the angle of attack is adjustable in a range of 0 ° to 10 °. This is a range of angles of attack can be realized with a single cutting device, so that can be dispensed with exchange or Umrüsttätigkeiten.

In einer weiteren Ausführungsform der Erfindung umfasst die Vorrichtung eine Steuer-und/oder Regelungseinheit, mittels der die Verstellung der Messertrommel auf der Basis ermittelter Schneidkräfte steuer- und/oder regelbar ist. Die Schneidkräfte werden beim Schneiden des Tabakkuchens ermittelt. Diese vorhandenen Informationen werden nunmehr erfindungsgemäß verarbeitet, um den Anstellwinkel α automatisch zu optimieren. Dadurch wird zum einen ein sauberes Schnittbild erzeugt. Zum anderen erhöht sich dadurch die Standzeit der Trennmesser.In a further embodiment of the invention, the device comprises a control and / or regulating unit, by means of which the adjustment of the cutterhead on the basis of determined cutting forces can be controlled and / or regulated. The cutting forces are determined when cutting the tobacco cake. This existing information is now processed according to the invention to automatically optimize the angle of attack α. This creates a clean cross-sectional image on the one hand. On the other hand, this increases the service life of the cutting knife.

Die Aufgabe wird auch durch ein Verfahren mit den eingangs genannten Schritten dadurch gelöst, dass die Messertrommel mit ihrer Trommelachse I in einer Ebene E parallel zur Schneidkante zur Anpassung des Anstellwinkels der Messertrommel und damit der Schneidkante jedes Trennmessers zu dem zu schneidenden Tabakkuchen verstellt wird.The object is also achieved by a method with the steps mentioned above in that the cutterhead is adjusted with its drum axis I in a plane E parallel to the cutting edge to adjust the angle of attack of the cutterhead and thus the cutting edge of each cutting knife to be cut tobacco cake.

In einer erfindungsgemäßen Weiterbildung wird der Anstellwinkel in einem Bereich von 0° bis 10° verstellt.In a further development of the invention, the angle of attack is adjusted in a range of 0 ° to 10 °.

Vorzugsweise wird der Anstellwinkel kontinuierlich angepasst.Preferably, the angle of attack is continuously adjusted.

Besonders vorteilhaft ist es, wenn der Anstellwinkel automatisch in Abhängigkeit der Schneidkräfte angepasst wird.It is particularly advantageous if the angle of attack is automatically adjusted as a function of the cutting forces.

Die sich aus den einzelnen Verfahrensschritten ergebenden Vorteile wurden bereits im Zusammenhang mit der Vorrichtung erläutert, weshalb zur Vermeidung von Wiederholungen auf die entsprechenden Ausführungen verwiesen wird.The advantages resulting from the individual process steps have already been explained in connection with the device, for which reason reference is made to the corresponding statements in order to avoid repetition.

Ganz besonders vorteilhaft lässt sich das erfindungsgemäße Verfahren mit der erfindungsgemäßen Vorrichtung nach einem der Ansprüche 1 bis 6, wie sie zuvor erläutert wurde, ausführen.The method according to the invention can be carried out particularly advantageously with the device according to the invention as claimed in any one of claims 1 to 6, as explained above.

Weitere zweckmäßige und/oder vorteilhafte Merkmale und Weiterbildung der Erfindung ergeben sich aus den Unteransprüchen und der Beschreibung. Besonders bevorzugte Ausführungsformen der Erfindung werden anhand der beigefügten Zeichnung näher erläutert. In der Zeichnung zeigt:

Fig. 1
eine schematische Darstellung einer Messertrommel mit zugeführtem Tabakkuchen in Seitenansicht,
Fig. 2
die Messertrommel gemäß Figur 1 in Draufsicht,
Fig. 3
eine Vorderansicht der Messertrommel gemäß Figur 2 in Ansicht A-A, allerdings mit einem Anstellwinkel ≠ 0°,
Fig. 4
eine schematische Darstellung einer Messertrommel mit einer Zuführeinrichtung für den Tabakkuchen, und
Fig. 5
eine schematische Darstellung einer Anordnung, umfassend die Messertrommel gemäß der Figuren 1 bis 3, eine Zuführeinrichtung sowie eine Schleifeinrichtung.
Further expedient and / or advantageous features and development of the invention will become apparent from the dependent claims and the description. Particularly preferred embodiments of the invention will be explained in more detail with reference to the accompanying drawings. In the drawing shows:
Fig. 1
a schematic representation of a knife drum with tobacco cake supplied in side view,
Fig. 2
the cutterhead according to FIG. 1 in plan view,
Fig. 3
a front view of the cutterhead according to FIG. 2 in view AA, but with an angle of attack ≠ 0 °,
Fig. 4
a schematic representation of a knife drum with a feed device for the tobacco cake, and
Fig. 5
a schematic representation of an arrangement comprising the cutterhead according to the FIGS. 1 to 3 , a feeder and a grinder.

Die Erfindung wird anhand einer Vorrichtung erläutert, die zum Schneiden von Tabak von einem Tabakkuchen ausgebildet und eingerichtet ist. Die Erfindung kann sowohl auf eine separate Schneidvorrichtung als Einzelkomponente ("stand-alone-Vorrichtung") als auch auf eine Anordnung mit einer solchen Schneidvorrichtung sowie mit einer Schleifvorrichtung zum Schleifen der Trennmesser der Schneidvorrichtung und mit einer Zuführeinrichtung zum Zuführen und/oder Verdichten des Tabakkuchens gerichtet sein.The invention will be explained with reference to a device which is designed and arranged for cutting tobacco from a tobacco cake. The invention can be applied both to a separate cutting device as a single component ("stand-alone device") as well as to an arrangement with such a cutting device and with a grinding device for grinding the cutting blade of the cutting device and be directed with a feeding device for feeding and / or compacting the tobacco cake.

Die in der Zeichnung dargestellte Vorrichtung 10, die zum Schneiden von Tabak 11 von einem Tabakkuchen 12 ausgebildet und eingerichtet ist, umfasst eine umlaufend um eine Trommelachse I antreibbare Messertrommel 13 mit mindestens einem Trennmesser 14. Die Messertrommel 13 kann jedoch auch mehrere Trennmesser 14, beispielsweise acht, aufweisen, die gleichmäßig über den Umfang verteilt sind. Die Trennmesser 14 ragen über die Umfangsfläche U der Messertrommel 13 hinaus, und zwar mindestens mit einer Schneidkante 15. Die Messertrommel 13 ist durch nicht dargestellte Antriebsmittel rotierend um die Trommelachse 1 antreibbar. Dadurch beschreiben die Trennmesser 14 mit ihren Schneidkanten 15 einen Schneidkreis SK, der stets und unabhängig vom Verschleiß der Trennmesser 14 den gleichen Durchmesser aufweist. Um das sicherzustellen, sind die Trennmesser 14 verstellbar ausgebildet. Wahlweise ist der Messervorschub getaktet oder - bevorzugt - kontinuierlich ausgebildet. Die Messertrommel 13 selbst ist an einem Rahmen, Gehäuse oder dergleichen angeordnet bzw. gelagert.The device 10 shown in the drawing, which is designed and arranged for cutting tobacco 11 from a tobacco cake 12, comprises a circumferentially about a drum axis I drivable knife drum 13 with at least one cutting knife 14. The knife drum 13, however, can also several cutting knife 14, for example eight, which are evenly distributed over the circumference. The separating blades 14 protrude beyond the peripheral surface U of the cutterhead 13, and at least with a cutting edge 15. The cutterhead 13 is driven in rotation about the drum axis 1 by drive means, not shown. Thus, the cutting blades 14 describe with their cutting edges 15 a cutting circle S K , which always and regardless of the wear of the cutting blade 14 has the same diameter. To ensure this, the cutting blades 14 are adjustable. Optionally, the blade advance is clocked or - preferably - formed continuously. The cutterhead 13 itself is arranged or mounted on a frame, housing or the like.

Diese Vorrichtung 10 zeichnet sich erfindungsgemäß dadurch aus, dass die Messertrommel 13 mit ihrer Trommelachse I in einer Ebene E parallel zur Schneidkante 15 zur Anpassung des Anstellwinkels α der Messertrommel 13 und damit der Schneidkante 15 jedes Trennmessers 14 zu dem zu schneidenden Tabakkuchen 12 verstellbar ausgebildet ist. Das bedeutet, dass die Messertrommel 13 in ihrer Position flexibel ist, und zwar nicht nur in linearer Richtung auf den Tabakkuchen 12 zu und von diesem weg, sondern erfindungsgemäß auch in der Neigung. Anders ausgedrückt ist die Messertrommel 13 derart kippbar ausgebildet und angeordnet, dass die Trommelachse I aus einer horizontalen Ebene EH heraus geneigt werden kann, so dass die Trommelachse I die horizontale Ebene EH schneidet, um den Anstellwinkel α variieren zu können.This device 10 according to the invention is characterized in that the cutterhead 13 with its drum axis I in a plane E parallel to the cutting edge 15 to adjust the angle of attack α of the cutterhead 13 and thus the cutting edge 15 of each cutting knife 14 to be cut tobacco cake 12 is adjustable , This means that the knife drum 13 is flexible in position, not only in the linear direction on the tobacco cake 12 and away from it, but according to the invention also in the inclination. In other words, the cutterhead 13 is tiltably formed and arranged so that the drum axis I can be inclined out of a horizontal plane E H , so that the drum axis I intersects the horizontal plane E H in order to vary the angle of attack α.

Die im Folgenden beschriebenen Merkmale und Weiterbildungen stellen für sich betrachtet oder in Kombination miteinander bevorzugte Ausführungsformen dar. Es wird ausdrücklich darauf hingewiesen, dass Merkmale, die in den Ansprüchen und/oder der Beschreibung zusammengefasst oder in einer gemeinsamen Ausführungsform beschrieben sind, auch funktional eigenständig die weiter oben beschriebene Vorrichtung 10 weiterbilden können.The features and developments described below represent individually or in combination preferred embodiments. It is expressly understood that features summarized in the claims and / or the description or in a common embodiment are described, even functionally independently can further develop the apparatus 10 described above.

Die Schneidkante 15 jedes Trennmessers 14 kann in einem spitzen Winkel zur Trommelachse I der Messertrommel 13 ausgerichtet sein. Das bedeutet, dass ein Trennmesser 14 bzw. dessen Schneidkante 15 auf einer Seite mehr über den Umfang U der Messertrommel 13 hinausragt als auf der gegenüber liegenden Seite. Vorzugsweise ist die Schneidkante 15 jedoch parallel zur Trommelachse I ausgerichtet, so dass der Überstand der Schneidkante 15 über die Umfangsfläche U der Messertrommel 13 über die gesamte Breite SB gleich ist. In einer bevorzugten Weiterbildung verläuft die Schneidkante 15 jedes Trennmessers 14 alternativ oder kumulativ auch noch gleichgerichtet zur Trommelachse I der Messertrommel 13. In der dargestellten Ausführungsform verläuft die Schneidkante 15 jedes Trennmessers 14 quer zum in Transportrichtung T zugeführten Tabakkuchen 12. Vorzugsweise wird der Tabakkuchen 12 in der horizontalen Ebene EH und senkrecht zur Trommelachse I zugeführt. Die Ausrichtung des Tabakkuchens 12 kann aber auch variieren, beispielsweise indem der Tabakkuchen 12 in einem spitzen Winkel zur horizontalen Ebene EH und/oder in einem Winkel ≠ 90° zur Trommelachse I zugeführt wird.The cutting edge 15 of each cutting knife 14 may be aligned at an acute angle to the drum axis I of the cutterhead 13. This means that a separating knife 14 or its cutting edge 15 protrudes on one side more about the circumference U of the cutterhead 13 than on the opposite side. Preferably, however, the cutting edge 15 is aligned parallel to the drum axis I, so that the projection of the cutting edge 15 over the peripheral surface U of the cutterhead 13 over the entire width S B is equal. In a preferred embodiment, the cutting edge 15 of each cutting blade 14 is alternatively or cumulatively also rectified to the drum axis I of the cutterhead 13. In the illustrated embodiment, the cutting edge 15 of each cutting knife 14 extends transversely to the direction in the transport direction T tobacco cake 12. Preferably, the tobacco cake 12 in the horizontal plane E H and perpendicular to the drum axis I supplied. However, the orientation of the tobacco cake 12 can also vary, for example by the tobacco cake 12 is supplied at an acute angle to the horizontal plane E H and / or at an angle ≠ 90 ° to the drum axis I.

Der Anstellwinkel α der Messertrommel 13 und damit der Schneidkante 15 jedes Trennmessers 14 zu dem zu schneidenden Tabakkuchen 12 ist vorzugsweise in einem Bereich von 0° bis 10° verstellbar. Selbstverständlich kann die Neigung auch in die andere als die dargestellte Richtung verstellbar sein, also vorzugsweise in einem Bereich von 0° bis -10°. Die Einstellung des Anstellwinkels α kann schrittweise oder kontinuierlich erfolgen. Vorzugsweise umfasst die Vorrichtung 10 Mittel zum Ermitteln der Schneidkräfte der Trennmesser 14 sowie eine Steuer- und/oder Regelungseinheit, mittels der die Verstellung der Messertrommel 13 auf der Basis der ermittelten Schneidkräfte steuer- und/oder regelbar ist, und zwar besonders bevorzugt automatisch.The angle of attack α of the cutterhead 13 and thus the cutting edge 15 of each cutting knife 14 to be cut tobacco cake 12 is preferably adjustable in a range of 0 ° to 10 °. Of course, the inclination can also be adjusted in the other direction than the direction shown, that is preferably in a range of 0 ° to -10 °. The adjustment of the angle of attack α can be gradual or continuous. Preferably, the device 10 comprises means for determining the cutting forces of the cutting blades 14 and a control and / or regulating unit, by means of which the adjustment of the blade drum 13 on the basis of the determined cutting forces controllable and / or regulated, and more preferably automatically.

Die erfindungsgemäße Vorrichtung 10 kann als Einzelkomponente ("stand-alone-Vorrichtung", siehe z.B. Figuren 1 bis 4) ausgebildet oder Bestandteil einer Anordnung 18 (siehe z.B. Figur 5), die neben der Vorrichtung 10 zum Schneiden und der Zuführeinrichtung 19 zum Bilden und/oder Zuführen des Tabakkuchens 12 auch eine Schleifeinrichtung 16 umfasst, sein. Es ist bekannt, Trennmesser 14 einer Vorrichtung 10 zum Schneiden während des Trennprozesses zu schleifen. Durch das Schneiden der Tabakfasern 11 vom Tabakkuchen 12 und möglichen Fremdstoffen in dem Tabakkuchen 12 unterliegen die Trennmesser 14 einem Verschleiß. Zusätzlich zum Verschleiß tritt auch eine erhebliche Verschmutzung durch Tabakstaub, Tabaksoßen und dergleichen auf. Insbesondere die Tabaksoßen setzen sich auf den Schneidkanten 15 der Trennmesser 14 ab. Um die Schnittqualität zu erhalten, werden die Trennmesser 14 bei jedem Umlauf um die Trommelachse I an der Vorrichtung 16 zum Schleifen vorbeigeführt. Die Trennmesser 14 bilden bzw. beschreiben durch die Rotation um die Trommelachse I den Schneidkreis SK. Dieser Schneidkreis SK ist in Überdeckung mit einer Schleifwalze 17, die um eine Schleifachse II rotierend antreibbar ist, bzw. deren dadurch erzeugten Schleifkreis zu bringen. Anders ausgedrückt müssen sich der Schneidkreis SK und der durch die Schleifwalze 17 beschriebene Schleifkreis berühren bzw. schneiden. Mit anderen Worten kreuzt der Schleifkreis den Schneidkreis SK, so dass jedes Trennmesser 14 zyklisch, nämlich bei jedem Trommelumlauf vorzugsweise einmal, nachgeschliffen wird. Durch das Schleifen der Trennmesser 14 verkürzen sich diese, was durch den Trennmesservorschub kompensierbar ist.The device 10 according to the invention can be used as a single component ("stand-alone device", see eg FIGS. 1 to 4 ) formed or component of an assembly 18 (see, eg FIG. 5 ), which in addition to the device 10 for cutting and the feeder 19 for forming and / or feeding the tobacco cake 12 also a Grinding device 16 includes, be. It is known to grind cutting knife 14 of a device 10 for cutting during the cutting process. By cutting the tobacco fibers 11 from the tobacco cake 12 and possible foreign matter in the tobacco cake 12, the cutting blades 14 are subject to wear. In addition to wear, there is also a considerable contamination by tobacco dust, tobacco sauces and the like. In particular, the tobacco sauces settle on the cutting edges 15 of the cutting blades 14. In order to maintain the cut quality, the separating blades 14 are guided past the drum axis I on the device 16 for grinding during each rotation. The separating blades 14 form or describe by the rotation about the drum axis I the cutting circle S K. This cutting circle S K is in overlap with a grinding roller 17 which is driven to rotate about a grinding axis II, or bring their grinding circuit generated thereby. In other words, the cutting circle S K and the grinding circle described by the grinding roller 17 must be touched or cut. In other words, the grinding circuit intersects the cutting circle S K , so that each cutting knife 14 is reground cyclically, namely preferably once each drum revolution. By grinding the cutting blade 14 shorten this, which can be compensated by the Trennmesservorschub.

In der Anordnung 18 gemäß Figur 5 verlaufen die Trommelachse I der Messertrommel 13 und die Schleifachse II der Schleifwalze 17 parallel und gleichgerichtet zueinander. Es kann jedoch gewünscht sein, dass die Trommelachse I und die Schleifachse II parallel und schräg zueinander verlaufen. Durch die Schrägstellung bzw. gekippte Stellung der Schleifwalze 17 zur Messertrommel 13 oder umgekehrt kann nämlich die Durchbiegung der Schleifwalze 17 bzw. die Krümmung der Oberfläche der Schleifwalze 17 kompensiert werden. Dadurch wird das Schliffbild verbessert. Die Schrägstellung ist durch die erfindungsgemäße Verstellbarkeit der Messertrommel 13 einfach und schnell realisierbar.In the arrangement 18 according to FIG. 5 the drum axis I of the cutterhead 13 and the grinding axis II of the grinding drum 17 extend parallel and rectified to each other. However, it may be desired that the drum axis I and the grinding axis II are parallel and oblique to each other. By the inclination or tilted position of the grinding roller 17 to the cutterhead 13 or vice versa namely the deflection of the grinding roller 17 and the curvature of the surface of the grinding roller 17 can be compensated. This improves the microsection. The inclination can be easily and quickly realized by the adjustability of the cutterhead 13 according to the invention.

Im Folgenden wird das erfindungsgemäße Verfahrensprinzip näher erläutert:The method principle according to the invention is explained in more detail below:

Der Tabakkuchen 12 wird z.B. mittels der Zuführeinrichtung 19 in Transportrichtung T auf die Messertrommel 13 zugeführt. Der jeweils im Bereich eines Mundstücks bzw. Spalts der Zuführeinrichtung 19 überstehende Abschnitt des Tabakkuchens 12 wird von einem Trennmesser 14, das an einer umlaufend angetriebenen Messertrommel 13 angeordnet ist, geschnitten, indem der Tabakkuchen 12 in einen durch mindestens eine über den Umfang U der Messertrommel 13 hinausragende Schneidkante 15 des Trennmessers 14 durch Umlauf um die Trommelachse I gebildeten Schneidkreis SK eintritt.The tobacco cake 12 is fed, for example, by means of the feed device 19 in the transport direction T to the cutterhead 13. The portion of the tobacco cake 12 protruding in each case in the region of a mouthpiece or gap of the feed device 19 is guided by a separating knife 14, which is attached to a knife drum 13 which is driven in rotation is arranged, cut by the tobacco cake 12 enters into a formed by at least one on the circumference U of the cutterhead 13 protruding cutting edge 15 of the cutting blade 14 by circulation around the drum axis I cutting circle S K.

Erfindungsgemäß wird die Messertrommel 13 mit ihrer Trommelachse I in einer Ebene E parallel zur Schneidkante 15 zur Anpassung des Anstellwinkels α der Messertrommel 13 und damit der Schneidkante 15 jedes Trennmessers 14 zu dem zu schneidenden Tabakkuchen 12 verstellt. Die Verstellung kann schrittweise während des Schneidprozesses oder kontinuierlich während des Schneidprozesses erfolgen. Es besteht auch die Möglichkeit, die Messertrommel 13 vor Ausführung eines Schneidprozesses auf die gewünschte Winkelstellung einzustellen, beispielsweise, wenn ein Kunde für eine bestimmte Tabaksorte einen so genannten Scherenschnitt wünscht. Die Verstellung des Anstellwinkels α kann bezüglich der Größe nahezu beliebig erfolgen. Bevorzugt wird der Anstellwinkel jedoch in einem Bereich von 0° bis 10° bzw. von 0° bis -10° verstellt.According to the invention, the cutterhead 13 is moved with its drum axis I in a plane E parallel to the cutting edge 15 to adjust the angle of attack α of the cutterhead 13 and thus the cutting edge 15 of each cutting knife 14 to the tobacco cake 12 to be cut. The adjustment can be made gradually during the cutting process or continuously during the cutting process. It is also possible to set the cutterhead 13 to the desired angular position before executing a cutting process, for example, if a customer wants a so-called paper cut for a specific kind of tobacco. The adjustment of the angle of attack α can be made almost arbitrarily with respect to the size. However, the angle of attack is preferably adjusted in a range from 0 ° to 10 ° or from 0 ° to -10 °.

Die Anpassung des Anstellwinkels α erfolgt wie erwähnt bevorzugt kontinuierlich. Dabei kann der Anstellwinkel α automatisch in Abhängigkeit der Schneidkräfte angepasst werden. Diese werden innerhalb der Vorrichtung 10 ermittelt und an die Steuerungs- und/oder Regelungseinheit weitergeleitet und von dieser verarbeitet.The adjustment of the angle of attack α is carried out as mentioned preferably continuously. In this case, the angle of attack α can be adjusted automatically as a function of the cutting forces. These are determined within the device 10 and forwarded to the control and / or regulating unit and processed by the latter.

Claims (10)

Vorrichtung (10), ausgebildet und eingerichtet zum Schneiden von Tabak (11) von einem in Transportrichtung T zugeführten Tabakkuchen (12), umfassend eine umlaufend um eine Trommelachse I antreibbare Messertrommel (13), wobei der Messertrommel (13) mindestens ein Trennmesser (14) zugeordnet ist, das eine Schneidkante (15) aufweist und mindestens mit dieser über den Umfang U der Messertrommel (13) hinausragt und beim Umlauf um die Trommelachse I einen Schneidkreis SK beschreibt, dadurch gekennzeichnet, dass die Messertrommel (13) mit ihrer Trommelachse I in einer Ebene E parallel zur Schneidkante (15) zur Anpassung des Anstellwinkels der Messertrommel (13) und damit der Schneidkante (15) jedes Trennmessers (14) zu dem zu schneidenden Tabakkuchen (12) verstellbar ausgebildet ist.Device (10), designed and arranged for cutting tobacco (11) from a tobacco cake (12) fed in transport direction T, comprising a cutter drum (13) which can be driven circumferentially about a drum axis I, the cutter drum (13) comprising at least one separating knife (14 ), which has a cutting edge (15) and protrudes at least with this over the circumference U of the cutterhead (13) and circulating around the drum axis I describes a cutting circle S K , characterized in that the cutterhead (13) with its drum axis I in a plane E parallel to the cutting edge (15) for adjusting the angle of attack of the cutterhead (13) and thus the cutting edge (15) of each cutting knife (14) to be cut tobacco cake (12) is adjustable. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Schneidkante (15) jedes Trennmessers (14) parallel zur Trommelachse I ausgerichtet ist.Apparatus according to claim 1, characterized in that the cutting edge (15) of each cutting knife (14) is aligned parallel to the drum axis I. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Schneidkante (15) jedes Trennmessers (14) gleichgerichtet zur Trommelachse I verläuft.Apparatus according to claim 1 or 2, characterized in that the cutting edge (15) of each cutting blade (14) extends rectified to the drum axis I. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Schneidkante (15) jedes Trennmessers (14) quer zum in Transportrichtung T zugeführten Tabakkuchen (12) verläuft.Device according to one of claims 1 to 3, characterized in that the cutting edge (15) of each cutting knife (14) extends transversely to the transport direction T tobacco cake (12). Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Anstellwinkel in einem Bereich von 0° bis 10° verstellbar ausgebildet ist.Device according to one of claims 1 to 4, characterized in that the angle of attack is adjustable in a range of 0 ° to 10 °. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass diese eine Steuer- und/oder Regelungseinheit umfasst, mittels der die Verstellung der Messertrommel (13) auf der Basis ermittelter Schneidkräfte steuer- und/oder regelbar ist.Device according to one of claims 1 to 5, characterized in that it comprises a control and / or regulating unit, by means of which the adjustment of the knife drum (13) on the basis of determined cutting forces can be controlled and / or regulated. Verfahren zum Schneiden von Tabak (11) von einem in Transportrichtung T zugeführten Tabakkuchen (12) mit einer Vorrichtung (10) zum Schneiden von Tabak, insbesondere nach einem der Ansprüche 1 bis 6, umfassend die Schritte: - Zuführen des Tabakkuchens (12) in Transportrichtung T auf die Vorrichtung (10) zu, - Schneiden des zugeführten Tabakkuchens (12) mittels mindestens eines an einer umlaufend um eine Trommelachse I angetriebenen Messertrommel (13) angeordneten Trennmessers (14), - indem der Tabakkuchen (12) in einen durch mindestens eine über den Umfang U der Messertrommel (13) hinausragende Schneidkante (15) des Trennmessers (14) durch den Umlauf um die Trommelachse I gebildeten Schneidkreis SK eintritt, dadurch gekennzeichnet, dass die Messertrommel (13) mit ihrer Trommelachse I in einer Ebene E parallel zur Schneidkante (15) zur Anpassung des Anstellwinkels der Messertrommel (13) und damit der Schneidkante (15) jedes Trennmessers (14) zu dem zu schneidenden Tabakkuchen (12) verstellt wird.Method for cutting tobacco (11) from a tobacco cake (12) supplied in the transporting direction T with a device (10) for cutting tobacco, in particular according to one of claims 1 to 6, comprising the steps: Feeding the tobacco cake (12) in the direction of transport T to the device (10), Cutting the supplied tobacco cake (12) by means of at least one separating knife (14) arranged on a cutter drum (13) driven circumferentially about a drum axis I, in that the tobacco cake (12) enters into a cutting circle S K formed by at least one cutting edge (15) of the separating knife (14) projecting through the circumference U of the knife drum (13) through the circulation around the drum axis I, characterized in that the cutterhead (13) with its drum axis I in a plane E parallel to the cutting edge (15) for adjusting the angle of attack of the cutterhead (13) and thus the cutting edge (15) of each cutting knife (14) to be cut tobacco cake ( 12) is adjusted. Verfahren nach Anspruch 7, dadurch gekennzeichnet, dass der Anstellwinkel in einem Bereich von 0° bis 10° verstellt wird.A method according to claim 7, characterized in that the angle of attack is adjusted in a range of 0 ° to 10 °. Verfahren nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass der Anstellwinkel kontinuierlich angepasst wird.A method according to claim 7 or 8, characterized in that the angle of attack is continuously adjusted. Verfahren nach einem der Ansprüche 7 bis 9, dadurch gekennzeichnet, dass der Anstellwinkel automatisch in Abhängigkeit der Schneidkräfte angepasst wird.Method according to one of claims 7 to 9, characterized in that the angle of attack is automatically adjusted as a function of the cutting forces.
EP14152391.0A 2013-01-25 2014-01-24 Device and method for cutting tobacco from a tobacco cake Withdrawn EP2759215A1 (en)

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CN107095339A (en) * 2017-05-16 2017-08-29 红云红河烟草(集团)有限责任公司 A kind of chopping knife door detection adjustment rule and its method of adjustment

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