US3707153A - Method and apparatus for segregating strands of tobacco - Google Patents

Method and apparatus for segregating strands of tobacco Download PDF

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Publication number
US3707153A
US3707153A US95269A US3707153DA US3707153A US 3707153 A US3707153 A US 3707153A US 95269 A US95269 A US 95269A US 3707153D A US3707153D A US 3707153DA US 3707153 A US3707153 A US 3707153A
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US
United States
Prior art keywords
tobacco
feeder channel
channel
separating
feeder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US95269A
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English (en)
Inventor
Konrad Brunhorn
Heinz Groschel
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.)
Martin Brinkmann AG
Original Assignee
Martin Brinkmann AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Martin Brinkmann AG filed Critical Martin Brinkmann AG
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Publication of US3707153A publication Critical patent/US3707153A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/20—Reducing volume of filled material
    • B65B1/24—Reducing volume of filled material by mechanical compression
    • 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
    • Y10S131/906—Sensing condition or characteristic of continuous tobacco rod
    • 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
    • Y10S131/909—Sensing condition in feed hopper for cigar or cigarette making

Definitions

  • a lower channel member is fed compressed air to assist the movement and axial compressing of the tobacco into a final por- [56] References cued tioning chamber. Converging knife blades effectively UNITED STATES PATENTS remove the desired portion of tobacco to providethe equally welghted increments. Feed measuring springs 460,278 9/1891 Hagen et a1 ..131 [81 A X are utilized to insure control of the weighted tobacco 520,881 6/1894 increments.
  • the present invention relates to a method and apparatus for separating 'equal weighted portions of a tobacco strand in conjunction with a separating channel from which the tobacco strand is fed via a feeder channel. Both the measurement, separation, and discharging of the equal increments of weighted tobacco as accomplished in accordance with the method and apparatus of this invention.
  • the present method and apparatus of the invention permits a number of radial compacting steps to take place upon the tobacco strand after it is fed into the apparatus. This compacting takes place in the feeder channel.
  • the tobacco strand can be passed considerably faster through the apparatus of the present invention without producing an inaccurate weight or inaccurate distribution of the tobacco portions to be separated.
  • the tobacco strand is advantageously radially compacted"in the feeder channel, in several subsequent zones which permits the tobacco strand to be radially compacted several times.
  • the radial compacting zones produce greater compaction as the tobacco strand passes from one subsequent zone to another.
  • the tobacco strand is conveyed by its own weight at least in the feeder channel in a perpendicular manner from top to bottom. This makes it possible to handle the tobacco strand in a careful manner.
  • the relaxing of the tobacco strand after each radial compaction makes it possible to obtain a uniform density.
  • the sequential compacting of the tobacco as it passes through the feeder channel makes it possible to give the tobacco strand the desired final condensation in a careful and accurate treatment.
  • the tobacco strand is assured of a uniform density and condensation that ultimately permits the measurement of the weight of the tobacco strands to be separated in an efficient manner in the separating channel.
  • the repeated condensing in the feeder channel is accomplished in the present invention by a specially designed elastic section in at least one zone of the feeder channel and preferably in a number of sequential zones.
  • the alteration of the cross section of the feeder zone can be advantageously accomplished to insure a compacting of the tobacco strand.
  • the elastic portions consist of a hose-like elastic sleeve that is connected to a fixed housing of varying cross section. The ends of the hose-like elastic sleeve are sealed in an appropriate manner to the housing thus permitting a zone between the housing 'and the elastic sleeve to which a pressure medium can be fed.
  • the purposes of the present invention can be accomplished in a simple and highly economical manner while further increasing the effectiveness of the compacting of the tobacco strands.
  • the present invention further utilizes measurement springs for the purpose of measuring the weight of the tobacco portions to be separated.
  • measurement springs for the purpose of measuring the weight of the tobacco portions to be separated.
  • feeder springs are associated with the measuring springs in the final measurement section of the device.
  • the separating channel can be locked at its lower portion by means of swingable fingers which are arranged on a sled that works in conjunction with the measuring springs and the feeder springs.
  • the sled can be adjusted in terms of position along the separating channel whereby the fingers when in the closed position will be provided adjacent the means for separating the tobacco portion.
  • two counter moving plate knives are inserted in the separating channel to serve as a means for separating the portions of tobacco strand.
  • the straight cutting edges of the knives are drawn symmetrically in a V shape. This permitting the tobacco strand to be uniformly reduced in size towards the middle of the tobacco portion thus permitting both a uniform compacting and insuring a smooth cutting from the main body of the tobacco.
  • prestressed scrapers are provided on a surface of the plate knives. The scraping edges of these pre-stressed scrapers are adapted to the shape of the cutting edges of the plate knives. The pre-stressing of the scrapers insures that the plate knives will be completely stripped of any tobacco remnants whenever they are removed from the separating channel.
  • FIG. 1 is a longitudinal cross section of the present invention
  • FIG. 2 is a cross sectional view taken along line IIII in FIG. 1;
  • FIG. 3 is a cross sectional view taken along line III- III in FIG. 1;
  • FIG. 4 is a prospective view of the cutting knives and scrapers in accordance with the present invention.
  • the apparatus of the present invention for separating portions of tobacco strand having equal weight is disclosed in which tobacco strand 11 in a known'manner enters feeder channel 12.
  • Feeder channel 12 is connected to the separating channel 13 and has a reduced cross sectional area in the direction of strand conveyance 14.
  • the feeder channel 12 is radially alterable in cross section due to the elasticportions of the zones 12,, 12 and 12
  • the number of zones are shown merely as an illustration of how the series associated elastic portions can be sequentially connected. It is obvious that the number of zones can be varied depending upon any special requirements.
  • Each of the elasticzones comprise an elastic hose or sleeve 12,, 12 and 12
  • the elastic hoses are respectively connected to the rigid housings 12,, 12 and 12
  • a pressure differential can be introduced.
  • each of the elastic zones 12,, 12 and 12 can be exposed to a pressure change for the purpose of altering the radial cross section of the tobacco flow area.
  • This pressure change can be accomplished for example by alternately applying an atmospheric pressure'such as 18, for example 1 atmosphere absolute, and a vacuum 18a of, for example 0.2 atmospheres absolute.
  • an atmospheric pressure' such as 18, for example 1 atmosphere absolute
  • a vacuum 18a of, for example 0.2 atmospheres absolute.
  • Each of the hose-like elastic sleeves 12 12 and 12 is connected in a sealed manner with its respective rigid housings 12 12 and 12
  • the pressure medium can for example be advantageously air, supplied respectively and removed via bore holes 15 in the rigid housings.
  • This is accomplished in such a manner that a collecting line 16 can be connected respectively to the bore holes 15.
  • This connecting line 16 can be placed in connection via pressure line 17, alternately with a vacuum 18a and with atmospheric pressure 18 by the help of the slider 19.
  • the slider 19 is activated by appropriate drive means 20.
  • a pressure sensor or pick-off device 21 is connected to the connecting line 16 for the purpose of activating an electric switch SIII.
  • the respective elastic zones of the feeder channel can also be designed so that the elastic sleeves 12 12 i and 12 will have increasing wall thicknesses in the strand conveyance direction 14. Thus it is possible to insure that the tobacco strands 11 will be increasingly radially compacted in the direction of conveyance.
  • a separating channel 13 is connected to the exit of the feeder channel 12 and has a ring chamber 22 through which compressed air can be introduced into the channel in the strand conveyance direction 14.
  • measuring springs 23 with associate feed measuring springs 25 on the terminal measuring section 24 are utilized.
  • Swingable fingers 26 position on a sled 27 are capable of closing the separating channel 13.
  • the sled 27 consists of an upper plate 27 and a lower plate 27 with connecting rods 27
  • the sled 27 can be adjusted in position relative to the separating channel 13.
  • the measuring springs 23 engage at one end on the upper plate 27 of the sled 27 and at the other end on tensioning devices 28;
  • the feed measuring springs 25 are arranged on a plate 40 which also can be adjusted relative in position to the separating channel 13.
  • the feed measuring springs'25 can in addition be adjusted by means of the adjusting ring 34 on the plate 40.
  • the swingable' fingers 26 can act both upon the measuring springs 23 and upon the feed measuring springs 25 since when the sled 27 is shifted downward, its upper lines). 27 also engages the feed measurement springs 25 adjacent the terminal measuring section 24 (shown in .-.-.-lines).
  • the fingers 26 When the device of the present invention is in a closed position, the fingers 26 are provided immediately below the means for separating portions of the tobacco strand from the main body of tobacco.
  • the two counter moving plate knives 30 are inserted into the separating channel 13 to effectuate the separation of a portion 10 of the tobacco.
  • the cutting edges 31 of the plate knives 30 are in each case formed in a symmetrical V shape from the outsides toward the middle of the plate.
  • pre-stressed scrapers 32 On the surfaces of the plate knives 30 are provided pre-stressed scrapers 32 having scraping edges 33 adapted to the shape of the cutting edges 31 of the plate knives 30.
  • the separating channel 13 is designed in a conically widening fashion, downward, going in the direction of the strand conveyance 14.
  • the separating channel 13 carries a console 35 which is firmly attached to it.
  • the plate knives 30, with their activating members 36, are attached to this console 35.
  • Spindles 37 are rotatably positioned on console 35 and can be driven via a combined cog wheel and chain drive 38 by a hand crank 39 or a motor M.
  • the spindles 37 carry the plate 40 which can be adjusted in terms of position by the spindles 37.
  • An electric switch 811 is provided on the plate 40 and is actuated by the upper plate 27, of the sled 27.
  • a locking lever 41 with a drive member 42 is positioned on plate 40 for the purpose of locking the upper plate 27 of the sled 27 in its illustrated lower terminal position during the separating and discharge process of measuring the tobacco portion 10.
  • the feed springs 25 are positioned on the plate 40.
  • the position adjustment plate 40 it is possible to alter the triggering action of the switch SI! and thus also the actuation of the measurement section. In this manner it is possible to regulate the volume of the tobacco strand portions 10.
  • By adjusting the adjustment rings 34 it is possible to alter the position of the feed measuring springs 25 with respect to the switch SH and thus effect an adjustment in the terminal measuring stretch 24.
  • the upper plate 27 of the sled 27 activates a fixedly arranged electrical switch S1 in its upper position.
  • the fingers 26 are swingably positioned on the lower plate 27 of the sled 27 by means of shafts 43.
  • the shafts 43 in each case are under a tension force from a rotating spring 44 which biases the fingers 26 into an open perpendicular position relative to the separating channel 13 as disclosed in the shadow lines in FIG. 1.
  • Beneath the plate knives 30, compressed air can be introduced via a ring channel 49 for the purposes of aiding the ejecting of the tobacco strand portions which ultimately fall upon a conveyor device 50.
  • the shafts 43 carry an arm 51 which protrudes toward the outer side of the separating channel 13 and which can cooperate with the roller 52.
  • the tobacco strands 11 are supplied from above into the feeder channel 12 in the direction of arrow 14.
  • the plate knives 30 are in a drawnout position, that is to say, they are outside the separating channel 13.
  • the elastic zones 12,, 12 and 12 of the feeder channel 12 are alternately charged with atmospheric pressure and a vacuum of approximately 0.2 atmospheres absolute by the appropriate movement of the slider 19.
  • the tobacco strands 11 are pressed together in an increasingly radial direction as they are conveyed through the elastic zones.
  • the feeder channel 12 and the separating channel 13 are completely filled with tobacco.
  • the tobacco strand 11 exerts a pressure against the fingers 26 which protrude below the separating channel 13 and in the closed position the fingers 26 move the sled 27 downward.
  • the downward motion of the tobacco strand 11 in the separating channel 13 is partly due to the action of the compressed air which is supplied via the ring chamber 22.
  • the compressed air is supplied at the moment when the atmospheric pressure 18 fills the elastic sleeves 12,", 12 and 12,-,” of the elastic zones 12,,
  • Simultaneously compressed air is introduced via the ring channel 49 below the closed plate knives 30 into the separating channel 13 and this compressed air acts upon the separated portion of tobacco strands 10 and forces this portion of tobacco downward and onto the conveyor belt 50.
  • the compressed air which is introduced at the beginning of the separating channel 13 via the ring chamber 22 is correspondingly shut off.
  • the switch 811 can activate the vacuum on the elastic sleeves 12," 12," and 12
  • the locking lever 41 is unlocked in a time delayed fashion, which permits the measuring springs 23 to pull the sled 27 upward.
  • the stressing devices 28 for example consist of a piston drive capable of upward movement which additionally stresses the measuring springs 23 so that the springs will increase the sled 27 movement into the upper operative position.
  • the switch SI When the sled 27 is in its upper operative position, its upper plate 27 activates the switch SI which as a result releases the effect of the stressing device 28 so that the measuring springs 23 again are under the normal tension.
  • the switch SI furthermore shuts off the blowout air which is introduced via the ring chamber 49.
  • the switch S111 is activated by the pressure pickoff 21 at the moment the elastic sleeves 12,", 12 and 12 are subjected to atmospheric pressure 18. This inturn triggers the compressed air which is introduced through the ring chamber 22.
  • a device for segregating equal increments of loose tobacco strands from a source of tobacco comprising:
  • a feeder channel for receiving the loose tobacco strands
  • means for radially compacting the loose tobacco strands as it travels through the feeder channel comprising at least one elastic sleeve and a source of pressure differential for varying the relative size of the elastic sleeve whereby the flow area of the feeder channel is varied;
  • c. means for separating the compacted tobacco into equal increments.
  • a device as in claim 1 including means for compressing the loose tobacco in the axial flow direction after it is compacted radially.
  • a device as in claim 3 where the means for axial compression includes a source of air pressure and means for introducing the air pressure against the' tobacco.
  • a device as in claim 3 where the means for separating the compacted tobacco includes measuring springs.
  • a device as in claim 5 where the means for separating the compacted tobacco further includes the flow of compressed tobacco include a pair of pivotable levers.
  • a device for segregating equally weighted portions of a tobacco strand said device being provided with a feeder channel means, a separating channel and means for supplying the tobacco strand and means for measuring, separating and discharging the portions to be segregated wherein the feeder channel means is elastically variable in cross-section at zones thereof, said device further including a ring nozzle means ad-' jacent to the feeder channel means, said nozzle means operating intermittently in the direction of conveyance of the tobacco, the operation being stopped upon the enlargement of the crosssection of the feeder channel means and started on reduction of the cross-section of the feeder channel means.
  • a method for supplying tobacco to a processing device wherein the tobacco is successively compacted during its forward movement in the direction of flow through a feeder channel each compaction comprising alternately radially compressing and expanding a zone of the feeder channel over 360' of the feeder channel and axially compressing by means of an air stream the tobacco in a compression zone adjacent the feeder channel, the axial compression occurring when the feeder channel is compressed and ceasing where the feeder channel is expanded.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
  • Pretreatment Of Seeds And Plants (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
US95269A 1969-12-06 1970-12-04 Method and apparatus for segregating strands of tobacco Expired - Lifetime US3707153A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691961407 DE1961407B1 (de) 1969-12-06 1969-12-06 Verfahren zum Zufuehren von Tabak unter gleichzeitiger Verdichtung zu einer Verarbeitungsvorrichtung sowie Vorrichtung zum Durchfuehren des Verfahrens zum Abteilen von Portionen gleichen Gewichts von einem Tabakstrang

Publications (1)

Publication Number Publication Date
US3707153A true US3707153A (en) 1972-12-26

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ID=5753249

Family Applications (1)

Application Number Title Priority Date Filing Date
US95269A Expired - Lifetime US3707153A (en) 1969-12-06 1970-12-04 Method and apparatus for segregating strands of tobacco

Country Status (12)

Country Link
US (1) US3707153A (xx)
AT (2) AT302863B (xx)
BE (1) BE759195A (xx)
CH (1) CH524328A (xx)
CS (1) CS189569B2 (xx)
DE (1) DE1961407B1 (xx)
FR (1) FR2072891A5 (xx)
GB (1) GB1294570A (xx)
LU (2) LU62079A1 (xx)
NL (1) NL144879B (xx)
NO (1) NO128428B (xx)
SE (2) SE386419B (xx)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4111212A (en) * 1972-08-09 1978-09-05 Douwe Egberts Tabaksmaatschappij B.V. Dosing and weighing of cut tobacco
US20160120215A1 (en) * 2013-06-11 2016-05-05 International Tobacco Machinery Poland Sp. Z O.O. Method and shoe for pressing segments of multi-segment filter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1418016A (en) * 1972-12-07 1975-12-17 Amf Inc Dispensing of particulate material

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US460278A (en) * 1891-09-29 Cigar-bunching machine
US520881A (en) * 1894-06-05 Ments
US636625A (en) * 1898-06-23 1899-11-07 Guido Ferrari Cigarette-machine.
DE548860C (de) * 1932-04-20 Neuerburg Sche Verwaltungsgese Vorrichtung zum Zufuehren des Tabaks aus dem Ausbreiter zum Formatband einer Zigarettenmaschine
US1916017A (en) * 1931-09-26 1933-06-27 Int Cigar Mach Co Scrap bunch feed mechanism
US1926227A (en) * 1932-06-18 1933-09-12 Int Cigar Mach Co Scrap bunch feed
FR826914A (fr) * 1936-12-31 1938-04-13 Decoufle Usines Procédé et appareil pour la distribution du tabac
US2286306A (en) * 1937-04-21 1942-06-16 American Mach & Foundry Cigarette machine tobacco feed
US2290896A (en) * 1938-10-29 1942-07-28 American Mach & Foundry Dense end mechanism for cigarette machines
US2292420A (en) * 1939-06-03 1942-08-11 Int Cigar Mach Co Charge former for cigar machines
US2308323A (en) * 1939-10-10 1943-01-12 Molins Machine Co Inc Cigarette machine
NL6414842A (xx) * 1963-12-26 1965-06-28

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US460278A (en) * 1891-09-29 Cigar-bunching machine
US520881A (en) * 1894-06-05 Ments
DE548860C (de) * 1932-04-20 Neuerburg Sche Verwaltungsgese Vorrichtung zum Zufuehren des Tabaks aus dem Ausbreiter zum Formatband einer Zigarettenmaschine
US636625A (en) * 1898-06-23 1899-11-07 Guido Ferrari Cigarette-machine.
US1916017A (en) * 1931-09-26 1933-06-27 Int Cigar Mach Co Scrap bunch feed mechanism
US1926227A (en) * 1932-06-18 1933-09-12 Int Cigar Mach Co Scrap bunch feed
FR826914A (fr) * 1936-12-31 1938-04-13 Decoufle Usines Procédé et appareil pour la distribution du tabac
US2286306A (en) * 1937-04-21 1942-06-16 American Mach & Foundry Cigarette machine tobacco feed
US2290896A (en) * 1938-10-29 1942-07-28 American Mach & Foundry Dense end mechanism for cigarette machines
US2292420A (en) * 1939-06-03 1942-08-11 Int Cigar Mach Co Charge former for cigar machines
US2308323A (en) * 1939-10-10 1943-01-12 Molins Machine Co Inc Cigarette machine
NL6414842A (xx) * 1963-12-26 1965-06-28

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4111212A (en) * 1972-08-09 1978-09-05 Douwe Egberts Tabaksmaatschappij B.V. Dosing and weighing of cut tobacco
US20160120215A1 (en) * 2013-06-11 2016-05-05 International Tobacco Machinery Poland Sp. Z O.O. Method and shoe for pressing segments of multi-segment filter

Also Published As

Publication number Publication date
SE386419B (sv) 1976-08-09
DE1961407B1 (de) 1971-09-23
CH524328A (de) 1972-06-30
CS189569B2 (en) 1979-04-30
LU62079A1 (xx) 1971-05-11
NL144879B (nl) 1975-02-17
NL7017541A (xx) 1971-06-08
AT301420B (de) 1972-09-11
LU29377A1 (xx)
NO128428B (xx) 1973-11-19
BE759195A (fr) 1971-04-30
GB1294570A (en) 1972-11-01
SE406856B (sv) 1979-03-05
SE7504100L (xx) 1975-04-09
FR2072891A5 (xx) 1971-09-24
AT302863B (de) 1972-10-25

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