US3677068A - Arrangement for testing cigarettes - Google Patents

Arrangement for testing cigarettes Download PDF

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Publication number
US3677068A
US3677068A US121450A US3677068DA US3677068A US 3677068 A US3677068 A US 3677068A US 121450 A US121450 A US 121450A US 3677068D A US3677068D A US 3677068DA US 3677068 A US3677068 A US 3677068A
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US
United States
Prior art keywords
drum
troughs
arrangement
cigarettes
cigarette
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US121450A
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English (en)
Inventor
Alfred Schmermund
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Individual
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Individual
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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/32—Separating, ordering, counting or examining cigarettes; Regulating the feeding of tobacco according to rod or cigarette condition
    • A24C5/34—Examining cigarettes or the rod, e.g. for regulating the feeding of tobacco; Removing defective cigarettes
    • A24C5/3418—Examining cigarettes or the rod, e.g. for regulating the feeding of tobacco; Removing defective cigarettes by pneumatic means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S131/00—Tobacco
    • Y10S131/904—Pneumatic means for sensing condition or characteristic

Definitions

  • a rotatably mounted drum provided with a plurality of axially extending troughs having openings disposed around the cir- [30] Foreign Application Priority Dam cumferential surface of the drum, is disclosed.
  • Cigarettes are fed radially into the openings as the drum rotates.
  • the troughs are of such a depth that the cigarettes do [22] "73/423 M23103 not project above the drum surface, consequently, as the drum I geld 4 rotates in contact with a movable belt extending over an arcu- I 1 0 [71 Z ate portion of its circumference, the troughs are closed while covered by the belt. While the troughs are so closed, air under 56] References Cited pressure is lnyected into the closed troughs and a vacuum source is applied, via an axial bore in a piston pressed against UNITED STATES PATENTS the cigarettes: end surface to the respective cigarette.
  • a test is normally provided in order to detect defects in the paper covering, for example flaws in the paper or defective gluing of the seam.
  • a known arrangement for carrying out this test operation comprises a holder for each individual cigarette, this holder being so constructed that a difference in pressure can be applied between the end areas and the periphery of the cigarettes. If the airflow occurring as the result of the difference in pressure exceeds a determined value, the cigarette in question is discarded as defective.
  • the cigarettes Since during manufacture, the cigarettes are delivered to the testing station in continuously moving rows, the cigarettes must be separated, inserted into the holder, tested, and then, after elimination of defective cigarettes, deposited so as to form a continuous row once more. Difficulties arise in the introduction of the cigarettes into a testing chamber which is sealed in relation to the atmosphere and discharging them again without disturbing the continuity of the flow of cigarettes.
  • An apparatus for forming vacuum or pressure chambers for testing cigarettes from continuously moving rows which has a rotating drum, in the periphery of which there are provided axially parallel troughs to receive cigarettes which are inserted radially and removed radially again after testing, said troughs being closed, so as form chambers, during a partial rotation of the drum by means of coacting rotating elements cooperating with the drum.
  • This known apparatus has approximately semi-cylindrical troughs while the co-acting elements provided are blocks likewise having a substantially semi-cylindrical recess. The blocks are disposed on a rotating conveyor belt and during the partial rotation of the drum, are pressed into engagement with the troughs.
  • an arrangement for testing cigarettes comprising a rotatable drum provided with a plurality of elongate troughs having respective openings extending axially in the circumferential surface of the drum, feed means for feeding cigarettes radially through the openings and into the troughs, retaining means for retaining cigarettes within said troughs during rotation of the drum, closure means extending over an arcuate path in contact with a portion of the circumferential surface of the drum for closing the troughs in that surface portion, and means for applying at least one source of fluid at other than atmospheric pressure to the thus closed troughs for testing cigarettes contained therein.
  • the closure means comprises an endless flexible belt which is guided along said arcuate path, and is displaceable therein at a speed substantially equal to the circumferential speed of the drum.
  • FIG. 1 shows, semi-diagrammatically, and end elevational view of an arrangement embodying the invention
  • FIG. 2 shows, partlyin section and semi-diagrammatically, a side elevational view of the arrangement shown in FIG. 1.
  • the arrangement comprises a drum 10 which is rotated on rotation of drive means comprising the shaft 68.
  • the direction of rotation is counterclockwise, as indicated by the arrow.
  • a supply drum I2 by which the cigarettes 14 are inserted into axially extending troughs 16 disposed around the circumferential surface of the drum 10, rotates in the clockwise direction.
  • the cigarettes 14 are held in position by vacuum means.
  • This vacuum means is known in itself and is therefore only indicated diagrammatically in the drawings; in the drum 10 there can be seen vacuum pipes 18 which, by means of a control slot 20, are connected to a vacuum supply pipe 22'(FIG. 2).
  • a discharge drum 24 is constructed similarly to the supply drum l2 and takes the cigarette 14 out of the troughs 16.
  • each trough 16 is constructed to receive a pair of filter cigarettes, which have already been cut, with their filters 14'.
  • the vacuum pipes 18 lead into projections 26 of U-shaped cross-section (FIG. I), which support the end portions of the cigarettes as they lie in the troughs 16.
  • An arcuate control slot 20 between the vacuum supply pipe 22 and the vacuum pipes 18 is indicated in FIG. 1 by broken lines.
  • testing pipe 30 Another pipe, which will be referred to as the testing pipe 30, has its mouth at the bottom of each of the troughs 16. It can be connected to a vacuum pump, to a pressure pipe, to flow measuring device, or the like, through another arcuate control slot 32 and a testing supply pipe 34.
  • the type of testing applied in each individual case is not an essential feature of the invention; an arrangement embodying the invention is suited to many different known methods of testing.
  • the arcuate control slot 32 for the elongate passages or test pipes 30 extends over a shorter portion of the circumference of the drum 10 then does the arcuate control slot 20 for the vacuum pipes 18.
  • the control slot 32 extends over an arcuate portion of the circumferential path traced by the troughs 16 as the drum 10 rotates and, while the troughs 16 are traversing this portion, they are closed by the overlapping belt 38.
  • the portion of the belt 38 which extends around the circumferential surface of the drum 10 between pressure rollers 42 and 44 presses against the smooth surface of the drum l0 and provides a substantially air-tight seal for the troughs 16 while they are overlapped by the belt.
  • FIG. 1 it can clearly be seen that the cigarettes lying on the projections 26 do not project beyond the periphery of the drum, so that the troughs 16 are in the form of elongated depressions in the outer circumferential surface of the drum 10, which is otherwise completely smooth.
  • a smooth flat belt 38 which is driven by frictional contact with the circumferential surface of the drum l0, cooperates with the pattern of interconnected webs 36 which extend between the troughs 16.
  • a guide roller 40 and the two pressure rollers 42 and 44 are provided for the purpose of guiding the belt 38.
  • the belt extends in the axial direction (FIG. 2) beyond the ends of the troughs 16 and also bears against the webs 36 in the region of the end surfaces of the drum 16.
  • the belt is made of an elastomer such as is normally used for sealing purposes.
  • each of the troughs 16 in the axial direction is slightly greater than that of two cigarettes to be tested.
  • a cylindrical bore 46 which emerges flush with the U-shaped trough in the adjacent projection 26, is provided in the end portion of the drum l0 lying opposite the control slots 20 and 32 for each trough 16.
  • An axially slidable piston 48 is inserted in the bore 46, its end face contacting the end surface of the adjacent cigarette, as shown in FIG. 2.
  • the piston 48 which in the embodiment illustrated in the accompanying drawings is in the form of a cap of elastomer material mounted on a piston rod 52, has a bore 50 which extends axially through the piston 48 and the piston rod 52 and is adapted to be connected to a difference testing pipe 54. The airflow is consequently measured between the difference testing pipe 54 and the test pipe 34.
  • the pressure or vacuum source pressure gage, flow meters, etc. are not illustrated in the drawing since these are not features of the invention, per se.
  • the axial displacement of the piston 48 into the testing position illustrated in FIG. 2 is effected against the force of a spring 56, which is compressed by a collar 58 mounted on the piston rod 52 when axial displacement of the piston 48 takes place.
  • This spring force is overcome by means of a pneumatic pressure which acts on the opposite side of the collar 58 and which is supplied through a branch pipe 60 and a control slot 62, the latter being shown in broken lines in FIG. 1.
  • the control slot 62 extends over the portion of the periphery of the drum from the inlet for the cigarettes 14 to the outlet for the cigarettes; the length of the arcuate control slot 64 (see FIG. 1) for the difference testing pipe 54 on the other hand corresponds to the length of the control slot 32 for the test supply pipe 34.
  • the piston rod 52 extends beyond the end face of the drum into an annular collar 66.
  • the annular collar 66 may either be attached to an end surface of the drum 10 or be integral with the drum.
  • the collar 66 receives the piston rod 52, springs 56, collars S8, and branch pipes 60 of all the troughs and accordingly rotates with the drum 10.
  • the two annular control collars 70 and 72 associated with the drum 10 are rotatably mounted on the shaft 68 of the device, these collars 70 and 72 accomodate the control slots 62 and 64 in the collar 70 and the control slots and 32 in the collar 72, respectively.
  • the control collars 70 and 72 remain stationary relative to the drum 10 as the shaft 68 rotates.
  • the latter On the rotation of the drum 10 the latter first receives the cigarettes 14 from the supply drum 12; in the troughs 16 the cigarettes 14 are sucked on to the projections 26 by vacuum means and, at the same time, clamped fast by the axial movement of the piston 48. As the drum 10 rotates further, the troughs 16 are sealed in relation to the atmosphere by means of the belt 38 and the cigarettes are subjected to testing. It is obvious that the control slots are only indicated diagrammatically in the drawings; provision is naturally made for each cigarette to be tested separately.
  • the test chamber (that is to say the eight troughs 16 closed by the belt 38) open again after partial rotation of the drum 10, since the belt uncovers the troughs 16 again.
  • An arrangement for testing cigarettes comprising in combination:
  • feed means to feed cigarettes radially into said troughs through said openings
  • mounting means to mount and maintain said endless flexible belt and replace by frictional contact with said circumferential surface to cause said belt to be displaced at a speed substantially equal to the circumferential speed of said drum;
  • each said trough is provided with an arcuate seating for accommodating the circumferential surface of a cigarette, and the center of curvature of said seating is radially spaced from said drum surface by an amount which is at least equal to the radius of curvature of said seating.
  • each of said troughs is provided with at least two support members projecting within said trough to define respective arcuate seatings for accommodating the circumferential surface of a cigarette, and the center of curvature of each said seating is radially spaced from the circumferential drum surface by an amount which is at least equal to the radius of curvature of said seating.
  • each of said first passages comprises an elongate passage extending axially in the interior of said drum from said one end surface thereof.
  • each bore being axially aligned with a corresponding one of said elongate troughs and being provided with a piston which is selectably displaceably therealong for contacting an end surface of a cigarette in the respective trough.
  • An arrangement as defined in claim 10 comprising an annular member attached to an end surface of said drum to rotate therewith, said annular member being provided with a plurality of further cylindrical bores corresponding to and axially aligned with respective ones of said first mentioned cylindrical bores in the adjacent end portion of said drum, said pistons being axially slidable along mutually aligned pairs of first and further cylindrical bores, and said axial bore in said piston communicating with said suction or pressure source via a further arcuate control channel in an abutting surface of a further stationary member.

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  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
US121450A 1970-03-17 1971-03-05 Arrangement for testing cigarettes Expired - Lifetime US3677068A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702012647 DE2012647A1 (fr) 1970-03-17 1970-03-17

Publications (1)

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US3677068A true US3677068A (en) 1972-07-18

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US121450A Expired - Lifetime US3677068A (en) 1970-03-17 1971-03-05 Arrangement for testing cigarettes

Country Status (6)

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US (1) US3677068A (fr)
BE (1) BE762933A (fr)
CH (1) CH518683A (fr)
DE (1) DE2012647A1 (fr)
FR (1) FR2078785A5 (fr)
GB (1) GB1274190A (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4962700A (fr) * 1972-07-12 1974-06-18
US3962906A (en) * 1973-04-06 1976-06-15 Hauni-Werke Korber & Co., Kg Method and apparatus for testing cigarettes or the like
US4020675A (en) * 1974-01-18 1977-05-03 Molins Limited Manufacture of cigarettes
US4032000A (en) * 1975-04-04 1977-06-28 Service D'exploitation Industrielle Des Tabacs Et Des Allumettes Transport device for cylindrical objects rod-shaped, such as cigarettes
US4117852A (en) * 1976-08-31 1978-10-03 Philip Morris Incorporated Method and apparatus for reclaiming tobacco from cigarettes
US4333335A (en) * 1972-08-02 1982-06-08 Hauni-Werke Korber & Co. Kg Apparatus for testing the wrappers of cigarettes or the like
US4517829A (en) * 1983-02-25 1985-05-21 B.A.T. Cigaretten-Fabriken Gmbh Pneumatic sealing arrangement
US4535885A (en) * 1982-05-18 1985-08-20 B.A.T. Cigaretten-Fabriken Gmbh Pneumatic sealing apparatus
US4545488A (en) * 1982-05-13 1985-10-08 G. D. Societa Per Azioni Device monitoring the quality of cigarettes in a packaging machine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3266295A (en) * 1962-07-06 1966-08-16 Molins Organisation Ltd Manufacture of hollow articles
US3408858A (en) * 1961-07-07 1968-11-05 Hauni Werke Koerber & Co Kg Method and apparatus for testing cigarettes and the like
US3426582A (en) * 1966-05-18 1969-02-11 Reynolds Tobacco Co R Cigarette inspection apparatus
US3520177A (en) * 1967-02-10 1970-07-14 Hauni Werke Koerber & Co Kg Apparatus for testing and classifying cigarettes or the like
US3543927A (en) * 1968-12-04 1970-12-01 Reynolds Tobacco Co R Apparatus for testing cigarettes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3408858A (en) * 1961-07-07 1968-11-05 Hauni Werke Koerber & Co Kg Method and apparatus for testing cigarettes and the like
US3266295A (en) * 1962-07-06 1966-08-16 Molins Organisation Ltd Manufacture of hollow articles
US3426582A (en) * 1966-05-18 1969-02-11 Reynolds Tobacco Co R Cigarette inspection apparatus
US3520177A (en) * 1967-02-10 1970-07-14 Hauni Werke Koerber & Co Kg Apparatus for testing and classifying cigarettes or the like
US3543927A (en) * 1968-12-04 1970-12-01 Reynolds Tobacco Co R Apparatus for testing cigarettes

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4962700A (fr) * 1972-07-12 1974-06-18
US3913381A (en) * 1972-07-12 1975-10-21 Hauni Werke Koerber & Co Kg Method and apparatus for testing cigarettes or the like
US4333335A (en) * 1972-08-02 1982-06-08 Hauni-Werke Korber & Co. Kg Apparatus for testing the wrappers of cigarettes or the like
US3962906A (en) * 1973-04-06 1976-06-15 Hauni-Werke Korber & Co., Kg Method and apparatus for testing cigarettes or the like
US4020675A (en) * 1974-01-18 1977-05-03 Molins Limited Manufacture of cigarettes
US4032000A (en) * 1975-04-04 1977-06-28 Service D'exploitation Industrielle Des Tabacs Et Des Allumettes Transport device for cylindrical objects rod-shaped, such as cigarettes
US4117852A (en) * 1976-08-31 1978-10-03 Philip Morris Incorporated Method and apparatus for reclaiming tobacco from cigarettes
US4545488A (en) * 1982-05-13 1985-10-08 G. D. Societa Per Azioni Device monitoring the quality of cigarettes in a packaging machine
US4535885A (en) * 1982-05-18 1985-08-20 B.A.T. Cigaretten-Fabriken Gmbh Pneumatic sealing apparatus
US4517829A (en) * 1983-02-25 1985-05-21 B.A.T. Cigaretten-Fabriken Gmbh Pneumatic sealing arrangement

Also Published As

Publication number Publication date
FR2078785A5 (fr) 1971-11-05
DE2012647A1 (fr) 1971-11-11
GB1274190A (en) 1972-05-17
BE762933A (fr) 1971-07-16
CH518683A (de) 1972-02-15

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