Classifications

• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
  • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
  • A24D3/02—Manufacture of tobacco smoke filters
  • A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
  • A24D3/0287—Manufacture of tobacco smoke filters for filters with special features for composite filters
• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
  • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
  • A24D3/02—Manufacture of tobacco smoke filters
  • A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
  • A24D3/0212—Applying additives to filter materials
  • A24D3/0225—Applying additives to filter materials with solid additives, e.g. incorporation of a granular product

Definitions

• the invention relates to a method for producing a filter for tobacco products, comprising the steps: setting up paper or cardboard tubes in Garvorrich lines of a rotary table, clockwise rotation of the rotary table, around its own vertical axis, while stopping with each stop state of the rotary table a ceramic sieve, filling, checking the filling quantity, re-plugging an upper opening of at least one paper or cardboard tube and ejecting a paper or cardboard tube that has been refined into a filter and is located at the most advanced clock position of the rotary indexing table.
• the invention also relates to a corresponding device for producing the filter.
• the filter serves two purposes, namely on the one hand to filter out unwanted smoke accompanying substances, to cool the smoke and also to protect against burns when the cigarette has burned close to the mouthpiece.
• Smokers report that the use of the filter improves the taste of the cigarette and that the overall smoking experience is improved to the effect that the smoking pleasure is increased.
• the pre-assembled filter is designed as a consumable material.
• One filter is used for each individual cigarette.
• the number of hand-rolled cigarettes is very high.
• the need for the filters described above is correspondingly high.
• It is known to use pre-assembled filters at home To produce stuffing aids. A ceramic sieve is stuffed into a glued paper or cardboard tube from one side, so that a cup is created first. Activated charcoal is then poured into the cup and then the upper opening of the paper or cardboard tube is closed with another filter. Since the ceramic sieve has a rough surface, depending on the manufacturing process, it is sufficient that the ceramic sieves are stuffed into the sleeve with a press fit, so that the filter has a durability that securely holds a smoking process without disintegrating.
• the object of the invention is therefore to provide a method for producing a filter for tobacco products and a corresponding device for performing the method.
• the method task according to the invention is achieved by the method with the features according to claim 1 and the device task is achieved by the device according to claim 6. Further advantageous embodiments of the method are specified in the dependent claims to claim 1. Further advantageous configurations of the device are specified in the subclaims to claim 6.
• the filters are provided on a rotary table.
• the rotary indexing table has proven to be advantageous when handling the very narrow paper and cardboard tubes with possibly slightly varying diameters and not always exactly circular. Compared to continuous processes, the rotary indexing table is characterized by a comparatively se high insensitivity to minor tolerances of the materials used.
• the following steps are carried out on the rotary indexing table for the production of a filter for tobacco products: Placement of paper or cardboard sleeves in holding devices of a rotary indexing table. These holding devices can be simple grippers, clamps or grippers with round gripping chucks.
• the rotary indexing table is rotated in cycles around its own vertical axis. The rotation enables the paper or cardboard tubes to be fed to several processing stations.
• a lower opening of at least one paper or cardboard tube is plugged with a ceramic sieve.
• the ceramic screen has a frustoconical tip with which the ceramic screen is pushed towards the inside of the paper or cardboard tube.
• an upper opening of at least one paper or cardboard tube is plugged with a further ceramic sieve, the paper or cardboard tube being located at an even more advanced clock position in the rotary indexing table, and the ceramic sieve having a frustoconical tip and with the frustoconical tip Tip is stuffed to the inside of the paper or cardboard tube.
• a paper or cardboard tube refined to a filter is ejected, which is located at the most advanced clock position of the rotary indexing table.
• a twin yoke is used when plugging a pair of ceramic sieves, the distance between the yoke openings of the twin yoke corresponding to the distance between two paper or cardboard tubes in the holding devices of a clock position in the rotary indexing table.
• the use of the twin yoke doubles the throughput of the rotary indexing table compared to the use of a simple yoke as a gripper.
• a loading of the twin yoke is provided with a pair of kerami shear sieves by retracting the twin yoke, with a yoke upper part against the action of a spring when retracting against a stop and thereby moving away from the yoke lower part and thus the yoke openings are free, and Subsequent loading of the yoke openings through a magazine from the side, with a magazine lever holding the ceramic sieves in place until the respective yoke of the respective twin yoke closes by moving forward again and thereby picks up the ceramic sieves.
• each egg NEN magazine lever which is lifted from the corresponding ceramic sieve when loading the respective twin yoke by a ramp during the loading movement. This ensures that the very light ceramic sieves are not undesirably thrown out of the magazine during rapid handling by the device.
• a device for carrying out the method corresponding to the method described above is constructed as follows:
• the device has a rotary indexing table which carries tevorraumen arranged in a circle for paper or cardboard tubes.
• the rotary indexing table transports a pair of paper or cardboard tubes, which are recorded in the receiving positions, from one processing station to the next by an external clock generator, in which the rotary indexing table rotates around a vertical axis in the center of the circular holding devices by a predetermined angle.
• There is a first tube tamping station in the device which with the help of a twin yoke, which in turn is loaded from the side through a magazine with ceramic sieves, the ceramic sieves into the lower opening of the upright paper or cardboard tubes (2).
• a filling station which in pairs fills the paper or cardboard tubes with activated carbon and / or other filter components.
• a second Hülsenstopfsta tion which also with the help of a twin yoke, which in turn is loaded from the side through a magazine with ceramic sieves, the ceramic sieves into the upper opening of the upright paper or cardboard sleeves sen.
• a measuring station is arranged as part of the device between the filling station and the second tube tamping station, which in pairs drives a stamp into the paper or cardboard tube that is still open at the top and the immersion depth of the stamp via a displacement transducer records.
• the immersion depth is representative of the reverse te fill level of the filter, with a slightly submerged stamp indicating a high fill level and vice versa.
• twin yokes of the first case tamping station and the second case tamping station are in front and behind can be moved back, with one yoke upper part when a twin yoke moves back against a stop and thereby opens the respective twin yoke in that the upper yoke part of the respective twin yoke remains stationary through the stop and the respective twin yoke lower part continues to move.
• a magazine as part of the device moves laterally into the open yokes of each twin hole and a ceramic sieve fixed by a magazine lever is conveyed into the open yokes, with a ramp each of the corresponding, moving magazine lever from the corresponding Ponding, ceramic sieve lifts off, after which the respective twin yoke closes by moving the corresponding lower yoke part forwards again and thereby fixes the ceramic sieves in the twin yoke for the stuffing process.
• a control device as part of the device controls an ejection device in the last clock position so that the ejection device either transfers a paper or cardboard tube refined to a filter onto a conveyor belt or into a collecting container provided for this purpose for rejects when the previous measurement of the filling quantity in the measuring station has fallen below a lower critical value.
• FIG. 1 shows a filter for tobacco products in an isometric side view as
• FIG. 2 shows the filter from FIG. 1 in a perspective illustration
• FIG. 3 shows the filter from FIG. 2 in the ready-to-use state in openwork
• Fig. 4 two different variants of a ceramic screen, which in the
• Filter is used, 5 shows a sketch of the device according to the invention for producing filters for tobacco products,
• FIG. 8 shows a schematic diagram of the stamp for measuring the fill level of the filter.
• a filter 1 for tobacco products is shown in an isometric side view as an exploded view.
• the filter 1 consists of a paper or cardboard sleeve 2, which is closed at its open ends with a ceramic sieve 7 and 12 each.
• the ceramic screens 7 and 12 which have a cork-like structure, from the paper or cardboard sleeve 2 are shown removed.
• the ceramic screens 7 and 12 have kegelstumpfar term tips 8 and 13, which make it easier to plug the respective ceramic screen 7 and 12 into the open ends 9 and 14 of the paper or cardboard sleeve 2 with a press fit.
• In the paper or cardboard tube 2 there is granular Ak tivkohle, which filters unwanted smoke substances from the smoke by adsorption.
• FIG. 2 the filter from FIG. 1 is shown in a perspective representation, the ceramic screens 7 and 12 also being drawn away from the paper or cardboard tube in the manner of an exploded view.
• the ceramic screens 7 and 12 are inserted with the tapered side, namely the frustoconical tip in the openings, lower opening 6 and upper opening 11 to the inside 9 and 14 of these openings, whereby the paper or cardboard tube is closed and in itself holds the granular activated carbon 10 firmly.
• FIG. 3 shows the filter from FIG. 2 in the ready-to-use state in a broken view.
• the ceramic screens 7 and 12 are stuffed into the paper or cardboard tube 2 and fix between them a charge of a certain amount of activated carbon and / or other filter materials.
• the upper ceramic screens 7.1, 12.1 have a smooth surface on the outside, with 5 through holes being present in this embodiment. But it is also possible to provide one, two, three or four to 9 holes.
• the outwardly facing surface has a groove or notch 7a, 12a by means of which the ceramic sieve 7.2, 12.2 is placed on a central spring in a vibrating conveyor.
• the ceramic sieve which is lined up by means of the groove or notch on the tongue, can be guided on the tongue like along a rail.
• FIG. 5 shows a sketch of the device for carrying out the method for producing a filter for tobacco products.
• a vibrating conveyor which is filled with paper or cardboard tubes 2.
• the paper or cardboard tubes 2 collect and migrate due to the vibrations in a conveyor trough and are finally directed into a hose or tube, from where the paper or cardboard tubes 2 are directed to the first tube tamping station 60 who the , where the paper or cardboard tubes 2 are initially transferred to one of many Craigvorrich lines 3.
• ceramic sieves 7 are fed by two further vibratory conveyors into a magazine 30 'and 30''' each, where they are loaded into the twin yoke 15, which is described in more detail in this description.
• the twin yoke performs a typical clock movement and performs the ceramic sieves to a stamp, not shown here, which stuffs the ceramic sieves 7 from below into the lower opening 6 of each paper or cardboard tube 2.
• the loading process from the magazine 30 ', 30'"into the twin yoke 15 is described in more detail below.
• the rotary indexing table 4 performs a rotational movement through a predetermined angle in a predetermined cycle, through which the paper or cardboard tubes 2 are each conveyed further by an angular range. After a few cycles, a sleeve initially stuffed at the lower opening arrives at a fol lowing filling station 70, where the individual paper or cardboard sleeves 2 are filled with activated carbon as filter material or activated carbon with other filter components.
• the stamp 91 is inserted from above into the paper or cardboard tubes 2 which are still open at the top, the depth of immersion being inversely proportional to the degree of filling.
• the degree of filling of the respective paper or cardboard tube 2 is read out via displacement transducers 92, shown in FIG. 8, and is temporarily stored in a digital buffer of a control unit 93.
• this value serves as a criterion for placing it on a conveyor belt or for placing it in a collecting container for rejects.
• the paper or cardboard tubes 2 After the paper or cardboard tubes 2 have passed the measuring station 90, they are conveyed through the rotary indexing table 4 to a further tube tamping station 80.
• the second case tamping station 80 comparable to the first case tamping station 60, this time ceramic sieves are stuffed from above into the paper or cardboard tube 2 which is still open.
• ceramic sieves 12 come from two further vibratory conveyors, which are passed to a twin yoke 25 and are loaded into this via a magazine 30, 30 "each, before the stamp provided and not shown here pushes the ceramic sieves 12 into the paper or cardboard tubes 2.
• the already finished filters 1 After this tube tamping station 80, the already finished filters 1 are directed to an ejection device 100.
• the finished filter 1 is transferred to a conveyor belt 101 for further processing and packaging or whether the filter is directed to the scrap collection container.
• FIG. 6 it is shown on the basis of 8 cycles how the twin yoke 15 or 25 receives the ceramic sieves 7 and 12, respectively.
• the twin yoke 15, 25 is in the first cycle (1st in a circle) in the rotary indexing table so far that it covers the paper or cardboard sleeves 2 with the yokes 15a, 25a and 15b, 25b (in the case of the paper being closed or cardboard tubes 2 from above with twin yoke 25) and the paper or cardboard sleeves 2 covered under (in the case of the closure of the paper or cardboard tubes 2 from below with twin yoke 15).
• an arrow represents which element moves in order to get to the next clock pattern.
• clock pattern (1.) it is shown that the twin yoke 15, 25 moves downwards.
• the twin yoke 15, 25 consists of a lower lower yoke part 23 and an upper upper yoke part 20.
• timing diagram (2.) when the twin yoke 15, 25 is withdrawn, the upper yoke part 20 hits a stop not shown here and remains stationary, whereas the lower yoke part moves 23 further, as shown by the arrow in the clock diagram (2.).
• the lower yoke part 23 Against the force of a spring, the lower yoke part 23 now moves to a bottom dead center, which is shown in the clock diagram (3.), where the two halves, upper yoke part 20 and lower yoke part 23, show a maximum opening and the two yokes 15a, 25a and 15b, 25b open to the side through yoke openings 16, 16 '.
• timing diagram (6.) the lower yoke part 23 and the yoke upper part have reunited and the entire twin yoke 15, 25 continues in the direction of the rotary indexing table 4, as is outlined by the arrow in timing diagram (6.).
• cycle diagram (7th) the twin yoke has now moved into the rotary indexing table 4 so far that the ceramic screens 7, 12 are congruent with the paper or cardboard tubes 2, where the screens 7, 12 from the yokes 15a, 25a and 15b, 25b are pushed and plugged into the paper or cardboard tubes 2.
• the magazine 30 described in the timing diagrams (1.) to (8.) of FIG. 6 performs a loading movement.
• the insertion of the ceramic screens 7, 12 into the open yokes 15a, 25a and 15b, 25b is illustrated in FIG.
• different clocks (1.) to (5.) are shown, the number of clocks here not meaning any clock mix of the clocks in Figure 7 (8 clocks) with 5 clocks.
• the magazine 30 is from the side Darge presents.
• the magazine 30 is only shown from above with a narrow silhouette.
• a magazine lever 31 lies like a finger on a ceramic sieve 7, 12, which is fed into the open yoke 15a, 25a and 15b, 25b of the twin yoke 15, 25 is waiting, the open yoke 15a, 25a and 15b, 25b not being visible here.
• the magazine lever 31, which holds the ceramic sieve 7, 12 like a finger, can rotate about a lever axis 35.
• the pressure of the magazine lever 31 on the ceramic sieve 7, 12 is determined by a tare weight 33.
• the ceramic sieve 7, 12 is pushed from the right into the twin yoke 15, 25 by the push slide.
• the boom of the magazine lever 31, which lies on the ceramic sieve 7, 12 is moved to a ramp 26, where the ramp moves the magazine lever 31 from the ceramic sieve 7 , 12 answers.
• This movement is shown in the clock diagram (2) on the magazine lever 31.
• the movement of the sliding carriage 32 including the Magazinehe lever 31 continues to the left, as is outlined by the horizontal arrow on the right ne ben the magazine lever 31 in the clock diagram (2.).
• the maximum insertion position of the sliding carriage 31 is shown in the cycle diagram (3) and it is shown that the ceramic sieve 7, 12 lies in the yoke 15a, 25a and 15b, 25b.
• the reverse travel of the magazine lever 31 and the Schubschlit least 32 begins, with the magazine lever 31 sliding down the ramp 26 again.
• the magazine lever 31 moves to the now retracting, further kera mix sieve 7, 12 to clock pattern (4th), which enters the magazine 30 with the release of the position by the push carriage 32, clock pattern (5th).
• clock pattern 5th
• FIG. 8 shows how a paper or cardboard tube 2 entering from the right stops briefly in the measuring station 90 and a stamp 90 moves from above into the paper or cardboard tube 2 in order to measure the filling level via a displacement sensor.
• the measurement result is stored in a digital buffer and when it is ejected from the entire device, this measurement result is used as a quality feature for sorting out, with reject rates of well below 1% o (one per thousand) being aimed for.

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• Manufacturing Of Cigar And Cigarette Tobacco (AREA)
• Cigarettes, Filters, And Manufacturing Of Filters (AREA)

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• 2019
  • 2019-05-21 DE DE102019113489.7A patent/DE102019113489B3/de active Active
• 2020
  • 2020-02-27 WO PCT/DE2020/100137 patent/WO2020233733A1/de unknown
  • 2020-02-27 CN CN202080026307.2A patent/CN113784636B/zh active Active
  • 2020-02-27 ES ES20711494T patent/ES2940453T3/es active Active
  • 2020-02-27 EP EP20711494.3A patent/EP3927194B1/de active Active

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