Classifications

• • 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
  • A24C5/40—Hand-driven apparatus for making cigarettes
  • A24C5/42—Pocket cigarette-fillers
• • 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
  • A24C5/02—Cigarette-filling machines

Definitions

• the present invention relates to a device for producing cigarettes, in particular for producing individual cigarettes or cigarettes in small numbers, with at least one receiving shaft for receiving loose tobacco and having at least one, in a tobacco transport direction behind the receiving shaft arranged pressing device for pressing the loose tobacco to a tobacco rod and with at least one, in the tobacco transport direction behind the pressing means arranged feed device for inserting the tobacco rod into a tubular shaped cigarette paper.
• Loser tobacco so tobacco, which is not yet wrapped in a cigarette paper, is known to be cheaper than tobacco, which has already been processed into finished cigarettes. Therefore, it has long been known that end consumers of cigarette paper and loose tobacco make themselves cigarettes. This is done in the prior art for a completely by hand.
• a generic device is z. B. in DE 100 33 567 B4.
• Practice shows that the generic devices known in the prior art have problems to process different tobaccos and generally tobacco with different consistency to cigarettes of the same quality. This is due to the fact that different varieties of loose tobacco have different degrees of moisture, the individual tobacco fibers have different lengths and stick to each other to different degrees.
• the object of the invention is therefore to improve a generic device to the effect that they can process different varieties of loose tobacco, regardless of its consistency, to cigarettes of the desired high quality.
• the device at least one, arranged in Tabaktransportides before the pressing device conveyor for transporting the loose tobacco and at least one, arranged in Tabaktransportides before the pressing device, preferably rotatably mounted, cutting blade for cutting the emerging from the conveyor loose tobacco on has.
• the conveyor and the downstream cutting blade of the loose tobacco is cut into uniformly sized tobacco fibers before it is pressed in the pressing device to a tobacco rod and then inserted by the feed device in the sleeve-shaped cigarette paper.
• the conveyor has at least one rotatably mounted, preferably motor-rotatable, screw conveyor for transporting the loose tobacco.
• the cutting blade is arranged in the tobacco transport direction, preferably immediately behind at least one tobacco outlet opening of the conveyor. Preferably, the cutting blade is spaced apart from the tobacco outlet opening. The distance is favorably between 0 and 5 mm, preferably between 1 and 3 mm. So that a tobacco rod can be pressed with uniform tobacco density over its length in the pressing device, it is favorable to distribute the amount of loose tobacco provided for a tobacco rod uniformly over the length of the tobacco rod before it is pressed in the pressing device. To achieve this, preferred embodiments of the invention provide that at least one wing, preferably two vanes, for swirling of the
• Cutting knife cut loose tobacco is arranged.
• the separating blade is arranged in a swirling chamber surrounded by walls, wherein it is preferably provided that the swirling chamber, viewed in particular in the direction along an axis of rotation of the cutting blade, is at least approximately U-shaped or ⁇ -shaped arranged walls is limited.
• the cut loose tobacco is evenly distributed by the wing or wings.
• the device comprises at least one weighing device for determining the mass or the weight of the loose tobacco provided for a tobacco rod having.
• the weighing device is conveniently, seen in the tobacco transport direction, arranged behind the cutting blade and in front of the pressing device.
• Tobacco transport direction is understood to mean the direction in which the tobacco is transported through it during normal operation of the device.
• the tobacco transport direction must by no means run linearly or along a straight line through the entire device.
• devices according to the invention will be tobacco transport directions which are deflected or angled several times. If a first component of the device according to the invention is arranged in front of a second component in the tobacco transport direction, this means that the tobacco transported in the tobacco transport direction during normal operation of the device first reaches the first component and subsequently the second component. If a first component in the tobacco transport direction is arranged behind a second component of the device according to the invention, this means that the tobacco first passes to the second component during the normal operation of the device and then to the first component.
• the devices according to the invention are primarily intended for use by the end user, so that they can produce individual cigarettes or cigarettes in small numbers. Of course, this does not mean that larger numbers of cigarettes can not be produced with devices according to the invention.
• loose tobacco describes the tobacco that can be purchased commercially to make cigarettes from it.
• the various varieties of loose tobacco available on the market differ in the length and consistency of the individual tobacco fibers as well as in their degree of moisture and their degree of sticking together.
• FIG. 3 shows a vertical section, in which some essential components of the exemplary embodiment are shown
• FIG. 5 is a detail view in the region of the receiving shaft of the embodiment of FIG. 1
• FIG. 7a is a detailed view of components of the weighing device with the omission of the surrounding components
• FIGS. 8 and 9 are perspective views of a part of this embodiment in the region below the receiving shaft, wherein the outer housing is omitted in this illustration,
• Fig. 10 is a partially sectioned detailed representation in the region of the feed device with which a finished tobacco rod is inserted into a sleeve-like cigarette paper.
• Fig. 1 shows first a view from the outside of the closed housing 24 of the embodiment of an inventive device.
• the receiving shaft 1 which is open to the outside, into which the loose tobacco to be processed is introduced.
• a cigarette paper holder 25 On the side of the housing 24 is a cigarette paper holder 25, which is formed in the embodiment shown as a rotatable drum.
• the variant shown is only one of many ways in which such a cigarette paper holder can be arranged and configured.
• it has receptacles 26.
• the empty, not yet filled with tobacco sleeve-shaped cigarette paper 4 can be plugged in the manner shown.
• a cigarette filter 23 is present at the mouthpiece of each cigarette paper 4, respectively.
• Such prefabricated sleeve-like cigarette papers 4 with or without filters 23 are commercially available.
• the device according to the invention can also be used differently to the illustrated embodiment to fill cigarette paper 4 without cigarette filter 23.
• the cigarette paper holder 25 has, in the region of each plug-in sleeve 26, a passage opening through which the manufactured tobacco rod can be inserted through the plug-in sleeve 26 into the sleeve-shaped cigarette paper 4.
• a clamping spring 27 which carries two pinch rollers 28.
• This clamping device designed in this way serves to press the respective cigarette paper 4 against the respective plug-in sleeve 26 so that the cigarette paper 4 does not accidentally slip off the plug-in sleeve 26 when the tobacco rod is inserted.
• a second clamping spring 41 is provided, whose function will be explained below.
• the clamping devices shown like the entire cigarette paper holder 25, can also be designed differently.
• FIG. 2 now shows a view from above of the device shown in Fig. 1.
• the conveyor screw 7 of the conveyor 5 with which the loose tobacco is conveyed out of the receiving shaft 1 by rotating the conveyor screw 7 in the tobacco transport direction, can be seen.
• the screw conveyor 7 also causes a first treatment of loose tobacco by already juxtaposed larger tobacco lumps are already relaxed.
• FIGS. 3 and 4 which show various sectional views, essential parts of the device according to the invention are shown in succession in succession.
• the screw conveyor 7 is for this purpose with a suitable rotary drive in connection. Seen in the tobacco transport direction immediately behind the tobacco outlet opening 8 is the rotating blade 6 mounted in this embodiment, to the detail below is still received.
• the vortex chamber 13 is surrounded by the walls 12. From the vortex chamber 13, the cut to the desired length loose tobacco fibers of the tobacco transport direction following through the outlet 19 through down into the surrounded by walls 20, but upwardly open slot 21 of the tobacco slide 22 and thus on the cradle cup or tobacco support 16 of the weighing device 15.
• the weighing device 15 determines, as explained in detail below, when a sufficient amount of tobacco has accumulated on the tobacco support 16. At this time, via a corresponding control device with which the weighing device is in communication, the conveyor 5 or auger 7 and the cutting blade 6 are stopped, so that no additional loose tobacco is processed more and falls on the tobacco pad 16. Subsequently, the tobacco slide 22 is pushed over the tobacco support 16 so that the accumulated on the tobacco support 16 loose tobacco following the tobacco transport direction in a hopper 45 of the pressing device 2. The sheet 29 ensures that the entire, deported from the tobacco support 16 tobacco is fed to the filling shaft 45 and the pressing device 2. If the entire amount of tobacco is deported from the tobacco support 16, the Vorver Nonerklappe 30 is pivoted from the positions shown in Figs.
• the pressing slide 31 is pushed forward in the direction of the intended for the finished tobacco rod residual space 44 of the pressing chamber 32.
• the tobacco present in the pressing chamber 32 is pressed to the tobacco rod.
• the walls of the compression slide 31 and the remaining space 44 are shaped so that a cylindrical tobacco rod with the desired and the sleeve-like cigarette paper 4 matching dimensions forms during pressing.
• FIGS. 5 and 6 from which preferred features of the cutting blade 6 and the swirl chamber 13 result.
• the cutting blade 6 rotates about the rotation axis 14 in order to cut the tobacco emerging from the tobacco outlet opening.
• Other solutions than rotating the cutting blade 6 are conceivable.
• the rotational speed is about 900 U / min. At this high rotational speed of the loose tobacco is cut in the desired manner into short individual fibers, without the need for particularly sharp cutting 1 1 on the cutting blade 6 are necessary.
• the cutting blade 6 cuts the tobacco even after prolonged operation, the tobacco still in constant quality, since any occurring blunting of the cutting 1 1 at the high rotational speed has no special significance.
• the cutting blade 6 in the tobacco transport direction is arranged immediately behind the tobacco outlet opening 8 in the exemplary embodiment shown.
• the distance between the plane in which the blades 1 1 are arranged and / or rotate, and the tobacco outlet opening 8 is favorably between 0 and 5 mm, preferably between 1 and 3 mm.
• the drives of the conveyor 5 and the cutting blade 6 are conveniently coupled to each other in the manner that the conveying speed of the conveyor 5 and the screw conveyor 7 is tuned to the rotational speed of the cutting blade 6. It can be a constant relationship or constant speeds. In the embodiment shown, this is realized via a corresponding mechanical transmission, which couples the drive of cutting blade 6 and screw conveyor 7 in a suitable manner. Such transmissions can be realized by the person skilled in the art based on the prior art in a wide variety of embodiments. Of course, alternatively, it could also be provided to provide the conveyor 5 and the cutting blade 6 each with its own, preferably motor, drive and, as is known in the prior art, to couple these with each other by control technology.
• the exemplary embodiment according to the invention which is illustrated in the present figures, provides that at least one, preferably several, vanes 9 are or are provided on the cutting blade 6.
• the wings 9 cause upon rotation of the cutting blade 6 a turbulence of the cut loose tobacco in the vortex chamber 13 and thereby the desired uniform distribution.
• the wings 9 are at an angle 10 of about 90 ° from the remaining cutting blade 6 from.
• this is not the only possible design. In general, however, it is favorable if the wing or wings protrude from the remaining cutting blade 6 at an angle 10 deviating from 0 °, preferably at an angle 10 between 70 ° and 110 °.
• the or the wings 9, preferably each, on one of the respective cutting edge 1 1 of the cutting blade 6 opposite sides of the cutting blade 6 are arranged.
• the vortex chamber 13 with corresponding Walls 12 completely to cover the lower outlet opening 19.
• the outer walls 12, as shown in FIG. 5, along the rotational axis 14 of the cutting blade 6, is bounded by walls 12 arranged at least approximately U-shaped.
• the term approximately U-shaped means in this context, in particular, that the legs of this U-shape, as shown in Fig. 5, not necessarily everywhere must be parallel to each other.
• the walls 12 are arranged in the region of the outlet opening 19 from the vortex chamber 13 to run toward one another.
• the vortex chamber is in the direction along the axis of rotation
• FIG. 7 shows, in a sectional representation, a region in the interior of the device enclosed by the housing 24, in which the weighing device 15 and the pressing device 2 are located. It should first be noted that, as also realized in the embodiment shown, it is favorable when the weighing device
• the weighing device 15 seen in the tobacco transport direction is arranged behind the cutting blade 6 and in front of the pressing device 2.
• the weighing device 15 is not part of the pressing device 2, but is connected upstream as a separate component.
• the weighing device 15 as an essential process-controlling sensor of the control device or regulation implemented in the device shown, has to weigh a quantity of tobacco with very high accuracy.
• its weight should preferably be between 0.9 and 1.1 grams.
• the required by the weighing device 15 accuracy is in the range of +/- 10 mg.
• a special type of weighing device 15 is realized in the embodiment shown. FIG.
• This weighing device 15 has a tobacco support 16, a housing-fixed tobacco support suspension 17 and at least one strain gauge used as a measuring sensor. strip 18, wherein the strain gauge 18 between the tobacco pad 16 and the tobacco pad suspension 17 is arranged.
• the tobacco support 16 forms the weighing cup to which the amount of tobacco to be weighed falls.
• the tobacco support suspension 17 practically forms the support on which the tobacco support 16 is held in the housing 24.
• a leaf spring 36 is fixed to the tobacco support suspension 17.
• the tobacco support 16 is located on the freely projecting end of this leaf spring 36.
• the strain gauge 18 used here as a measuring sensor is fastened on the leaf spring 36 in the region between the tobacco support suspension 17 and the tobacco support 16. Due to the accumulation of cut loose tobacco on the tobacco support 16 this is deflected by appropriate bending of the leaf spring 36 downward. The strain gauge 18 registers this deflection of the leaf spring 36 and converts this via a suitable evaluation device known per se into a signal which reproduces the mass or the weight of the cut loose tobacco resting on the tobacco support 16. If the desired amount of tobacco has accumulated on the tobacco support 16, then, as already described, the cutting blade 6 and the conveyor 5 are turned off, so that no further tobacco falls more. Subsequently, the control device, not shown here, after the weighing device 15 has reported a sufficient amount of tobacco, the tobacco slide 22 come into action.
• a preferably formed as a rubber lip lip 37 which ensures that when you push the accumulated tobacco on the tobacco 16 tobacco, the entire amount of tobacco from the tobacco coating 6 in the subsequent feed slot 45 of the pressing device. 2 is pushed.
• the tobacco slide 22 is driven by the motor 34 via the cam 35 and the cam control disk 33.
• the cam 35 acts on the rear end of the push rod 38 of the tobacco slide 22.
• the compression slide 31 is also driven via the cam control disk 33 and the motor 34. This, too, is of course only an example and can be replaced by other embodiments.
• pressing chamber 32 is the finished pressed tobacco rod in the remainder 44 and must now be inserted from the feed device 3 in the sleeve-shaped cigarette paper 4.
• the feed device 3 has in the embodiment shown a stuffing needle 46, which can insert the tobacco rod into the cigarette paper 4 with its front end 43.
• a second cam control disc 33 ' is provided in the embodiment shown, which is also driven by a motor in the selected representations not visible because concealed drive gear.
• the cam control disk 33 ' acts on the drive lever 40 which, with corresponding rotation of the cam control disk 33' and the cam 35", moves the darning needle 46 forward so as to insert the tobacco rod into the cigarette paper 4.
• the cam control disk 33 ' is then correspondingly turned back, wherein the cam 35 "retracts this and thus also the stuffing needle 46 again by the hook-shaped design of the front end of the drive lever 40.
• a centering pin 39 is provided, which ensures with its tip 42 for an exact alignment of the sockets 26 at the outlet opening of the remainder space 44, so that the tobacco strand when inserted into the cigarette paper 4 does not collide with the cigarette paper holder 25 and its receptacles 26. In the embodiment shown, this is realized by the centering pin 39 is inserted into an adjacent socket 26. In order for this centering or alignment to take place before the tobacco rod is moved in the direction of cigarette paper 4, the centering pin 39 is designed to be correspondingly long in relation to the length of the darning needle 46 , In the exemplary embodiment shown, the centering pin 39 still has an additional function as a push-off or ejection device.
• the centering pin 39 as realized in the embodiment shown here, during the centering process also push off the pre-fabricated cigarette from the socket 26.
• the cigarette paper 4 of this cigarette is still clamped by the second clamping spring 41, so that when pushing the cigarette from the socket 26, the clamping resistance of the clamping spring 41 must be overcome, resulting in a densification of the tobacco rod in the cigarette.
• the drives shown in this embodiment can also be replaced by other suitable drive forms.
• a fully automated process should be aimed at, which is regulated by a corresponding control device, not shown here. In this is conveniently provided that it controls the device depending on the signals measured by the weighing device 15.
• control device controls in dependence on the signals of the weighing device 15, the conveyor 5 and the cutting blade 6 and / or the tobacco slide 22 and / or the pressing device 2 and / or the feed device 3, so that the described sequence results.
• an adjustment possibility is provided on the control device with which the tobacco portion per cigarette can be adjusted accordingly by means of the control device.
• the device according to the invention thus enables a method for producing a cigarette, in which at least one cutting blade 6 cuts loose tobacco emerging from the at least one tobacco outlet opening 8 of the at least one conveying device 5, wherein the method can have the described further characteristics.

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• Manufacturing Of Cigar And Cigarette Tobacco (AREA)

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Citations (6)

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• 2010
  • 2010-04-16 AT AT6172010A patent/AT509843B1/de not_active IP Right Cessation
• 2011
  • 2011-03-30 CN CN2011800193649A patent/CN102939019A/zh active Pending
  • 2011-03-30 WO PCT/AT2011/000155 patent/WO2011127500A1/de active Application Filing
  • 2011-03-30 EP EP11717452A patent/EP2557948A1/de not_active Withdrawn

Patent Citations (7)

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