US3716061A - Weight batching device for fibrous material such as shredded tobacco - Google Patents

Weight batching device for fibrous material such as shredded tobacco Download PDF

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Publication number
US3716061A
US3716061A US00023181A US3716061DA US3716061A US 3716061 A US3716061 A US 3716061A US 00023181 A US00023181 A US 00023181A US 3716061D A US3716061D A US 3716061DA US 3716061 A US3716061 A US 3716061A
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United States
Prior art keywords
strand
batches
end portion
exposed
fibrous material
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Expired - Lifetime
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US00023181A
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English (en)
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K Fortuyn
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Individual
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Individual
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    • 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
    • B65B1/30—Devices or methods for controlling or determining the quantity or quality or the material fed or filled
    • 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
    • A24C5/39—Tobacco feeding devices
    • 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

  • ABSTRACT Fibrous material such as shredded tobacco is first formed within a vertical tube into a' coherent strand which possesses a uniform density and cross-sectional area as it emerges from the lower end of the tube so that the strand displays a uniform weight per unit of length.
  • a selected length of the coherent strand is exposed below the tube and this exposed length is then evenly divided in two longitudinally divided parts which are pulled loose from the strand in opposite lateral directions to provide two substantially equal weight batches.
  • the coherent strand is restrained laterally just above the zone in which pulling apart is effected so that the weight of each batch is predictably related to the length of the exposed part of the strand which is below this restraining apparatus.
  • the strand drops and presents a new exposed length and further batches are formed. Two or more batches may later be recombined to provide a desired-weight portion of the material.
  • the strand is then exposed beyond the confining means for a selected or prescribed'length thereof and the whole or portions of this exposed length are gripped and pulled loose from the remainder of the strand in a direction lateral with respect to the longitudinal direction of the strand while, atthe same time, the strand closely adjacent the zone in which the pulling loose is effected is restrained in lateral opposition to the pulling loose action so that on successive pulling loose operations on identical lengths of exposed strand, substantially equal weight batches will be pulled loose.
  • the essential feature is that of providing a coherent strand of uniform density and cross-sectional area so that the weight per unit length of strand is uniform, and thereafter a selected exposed length of this strand is pulled loose in one or more batches. Because the weight per unit length of strand is uniform and because the length of exposed strand pulled loose is selected, the weight of material pulled loose each time is known and will be uniform so long as the selected length remains the same. An important feature here, of course, is the means by which it is assured that the selected exposed length is that which is pulled loose and not some more or less greater length due to the natural coherency of the fibrous material. To this end, the gripping means which pulls the material loose operates in conjunction with restraining means which opposes the pulling force of the gripping means.
  • the gripping means pulls in a direction normal to the longitudinal direction of the strand and the strand upstream of the gripping means is restrained from lateral movement by asleeve or collar.
  • This restraining means is longitudinally adjustable with respect to the gripping or pulling means and thereby controls the length of strand which is pulled loose.
  • a further restraining means may be located downstream of the gripping means for the purpose of limiting the longitudinal movement of the strand subsequent to a pullingloose operation and thereby limiting the length of a new portion of the strand which is exposed for a subsequent pulling loose operation.
  • the two gripping means which longitudinally divide the exposed strand length and which pull loose the so-divided portions in opposite directions. By making the division equally, the two batches pulled loose are of substantially equal and uniform weight.
  • FIG. 1 is a side elevation, partly in vertical cross-section, of an apparatus for forming portions of shredded tobacco and adapted to perform the'method according to the invention
  • FIG. 2 is a section, taken along the line II-ll in FIG. 1
  • shredded tobacco is fed to the apparatus via a system of pipes 1 into which the tobacco is'thrown manually, forinstance, (cf. the arrow at the top right-hand side of FIG. 1) in a tobacco loft (not shown).
  • the tobacco is conveyed by air suction from a conventional source and applied through the conduit 24, through a horizontal portion la of the pipe system 1 into a filter chamber 2 disposed in a vertical portion 1b of the pipe system 1, air and if necessary tobacco dust being drawn off via an inside filter wall 2a.
  • the tobacco thenpasses via a tubular portion 2b of the filter chamber 2, having a peripheral filter wall 20, into a buffer 3 whose bottom is founded by a regulating valve 4 controlling delivery from the buffer 3.
  • the regulating valve 4 discharges into a vertical conduit or shaft 5 of rectangular cross-section (see FIG. 2) within which a column or strand 7 of tobacco of substantially uniform height is maintained. Because the height of the column is maintained substantially constant, the density of the emergent or exposed lower end 7a of this strand is maintained at a substantially constant'or uniform density.
  • a series of sensors is provided within the conduit 5 to maintain the desired height of the strand 7.
  • These sen- 3- sors may be simple grounding Switch devices having movable contacts 60, 6b and 6c cooperablewithcor- .responding fixed contacts 6d, 6e and 6f.. These movable contacts are pivoted horizontallyas at P to the conduit and have downturned inner ends E adapted to be en- ,gaged by the tobacco of the strand 7 so as to be moved thereby out of contact with their fixed contacts when the strand is of such height as to counterbalance the movable contacts and pivot them out of engagement with their fixed contacts as shown in FIG. 1.
  • the fixed contacts are connected by suitable conductors C, C and C" to a suitable control device R which regulates fluid pressure within the pipe L from a conventional source indicated by the arrow 23 in FIG. 1 and leading to ,the control valve 4.
  • This control valve may be, as shown, of the type in which a resilient sleeve (i.e., rubber) is subjected to greater or lesser'surrounding pressure correspondingly to neck down" and open up the passage through the sleeve and thereby to control the amount of material passing through the valve.4. It will be understood that as the switches of the sensors successively are closed, the. o'pening through the valve 4 progressively increases in area. The net result is to maintain a substantially uniform height of the strand 7. It will be seen that the material of the strand 7 moves downwardly as a result of the intermittent removal of the exposed strand end 8a. If the time periods-between successive removals are made long,
  • the part of the apparatus described hereinbefore ensures that aflow of shredded tobacco of substantially uniform composition emerges from the bush edge 8a in the form of a vertical column or strand at substantially constant speed.
  • FIG. 2 is a partial plan view of the grippers ll, 12, the chain lines indication the grippers in their open condition, while the solid lines indicate the grippers in their closed position, in which they seize batches of tobacco from the strand end 7a.
  • the grippers ll, 12 can move transversely of the longitudinal axis of the bush 8.
  • an associated hydraulic actuator 13, 14 moves the grippers out of their open position (chain lines in FIG. 2) into their closed position (solid lines in FIG.
  • the edge 8a of the bush 8 acts as a restraining member which exerts restraining forces on the strand end 7a above the batches of tobacco pulled loose in the outward direction and therefore prevents the strand 7 in the shaft 5 from being subjected to excessive longitudinal forces which would disturb the constant feed of tobacco.
  • the baseplate 10 acts as a retaining member preventing the excessive longitudinal movement of the strand end.
  • the adjusting mechanism 9 therefore adjusts not only the distance between the bush edge 8a and the grippers l1, 12, but also the distance between the bush edge Saand the baseplate 10.
  • the adjusting mechanism may be a simple handoperated lever mechanism which raises and lowers the bush 8. Since the total weight of material removed by the grippers ll, 12 is a function of the length of the exposed portion 8a of the strand 7, it is obvious that the position of the bush 8 regulates batch weight.
  • the inward inclination of the edge 8a of the bush 8 shown in FIG. 1 is. not critical, and the edge can have some different outline.
  • the grippers ll, 12 are opened by their actuators l3, 14 respectively and the released batches of tobacco drop on to conveying rollers 19,20 respectively which are rotated in a manner not shown in detail and drop the batches of tobacco into separate receiving bins or the like 21, 22 where they are collected and may be recombined for a purpose appearing below.
  • the actuators l7, 18 then move the grippers l1, 12 respectively back into their starting position shown in chain lines in FIG. 2,and the afore-described cycle starts all over again.
  • the bins or the like 21, 22 are replaced by empty bins in the manner not shown in detail for each cycle.
  • the two gripping means which longitudinally divide the exposed strand length and which pull loose the so-divided portions in opposite directions. By making the division equally, the twobatches pulled loose are of substantially equal and uniform weight.
  • the batch weight although not exactly equal, will be uniformly of very nearly the same weight. Thus, by recombining two batches, for example, one of which is slightly underweight and the other of which is slightly overweight, recombined weight portions of very great accuracy may be obtained.
  • the batches may be first graded (i.e., underweight or overweight) and then recombined on this basis, the accuracy of the final or recombined weight being dependent upon the fineness of gradation and the control effected with respect to these gradations in the recombination. It is also possible further to reduce the approximate basic batch weight, as by halving the batches followed by grading and then recombining two or more basic batch weight portions to obtain a highly accurate final weight.
  • the fed strand end of tobacco can always be pulled apart in one or more (in the embodiment illustrated always two) batches of different size or weight, it is precisely an object of the invention to produce portions of tobacco of constantly identical or substantially identical weight.
  • the members 11 22 of the apparatus disclosed are identical in construction with the members 11-22 and are also disposed and move in mirror symmetry (in a laterally inverted manner) in relation to the longitudinal axis of the bush 8 at each instant during the working cycle of the apparatus.
  • a method of forming portions of substantially equal weight of a fibrous material such as shredded tobacco comprising feeding the fibrous material so as to form an elongated, coherent and confined strand of material of substantially constant density and cross-sectional dimension moving in a longitudinal direction and including an exposed end portion, and forming said portions by intermittently engaging said exposed portion of the strand and pulling the exposed end portion of said strand of material away from the remainder of the strand while exerting a restraining force on the strand in a zone upstream from the engaged part of the strand so as to oppose said pulling and prevent the strand upstream of said zone from being subjected to excessive longitudinal forces which would disturb either the feed of fibrous material or the amount of material pulled away.
  • a method as defined in claim 1 including the step of movingsaid strand in said longitudinal direction at a substantially constant speed and forming said portions at time intervals which are substantially identical.
  • a method as defined in claim 1 including the step of controlling the length of the portions pulled away from the strand by applying a restraining force to the exposed end portion of said strand downstream from the engaged part of the strand for limiting movement of said strand in said longitudinal direction.
  • a method as defined in claim 1 including the step of adjusting the distance between said engaged part of the strand and the zone where a restraining force is exerted on the strand in accordance with the desired size of the formed portions 5.
  • a method as defined in claim 3 including the step of adjusting the distance between said engaged part of the strand and the point of application of said restraining force to limit further longitudinal movement of the strand in accordance with the desired size of the formed portions.
  • Apparatus for forming portions of substantially equal weight of a fibrous material such as shredded tobacco comprising an elongated hollow material-feeding member having an open end for discharging fibrous material in a direction longitudinal thereof, means for feeding fibrous material through said member such that the material emerges in'an exposed end portion thereof from said open end in said direction in the form of a coherent strand of material of substantially constant density and cross-sectional dimension, movable gripper means disposed downstream of said open end for intermittently engaging the exposed end portion of the strand and pulling said exposed end portion of the strand away from the remainder of the strand,.and restraining means disposed adjacent said open end for exerting a restraining force on the strand opposing the pulling of said gripper means to prevent the strand within said material-feeding member upstream of said restraining means from beingsubjected to excessive longitudinal forces.
  • Apparatus as defined in claim 12 wherein said restraining means comprises wall means at said open end of the material-feeding member.
  • Apparatus as defined in claim 12 including means for adjusting the distance between said restraining means and said gripper means.
  • Apparatus as defined in claim 12 including further restraining means disposed downstream of said gripper means to limit longitudinal movement of the exposed end portion of said strand.
  • said gripper means includes a plurality of gripper portions which are disposed symmetrically with respect to said open end of the material-feeding member.
  • sensing means comprise at least one feeler member extending into said hollow material-feeding member above the open end thereof, said regulating means comprising a regulating valve controlling the amount of material passing downwardly into the portion of said material-feeding member having said sensing means therein.
  • step (b) collecting and recombining material obtained from batches pulled loose in step (b) to formsaid substantially equal weight portions.
  • step (b) is also substantially uniform.
  • step (b) is effected by pulling loose in a direction substantially perpendicular to the longitudinal direction of the strand.
  • step (a) also includes feeding said strand against a stop spaced from the end'of the confining means whereby said exposed end portion of the strand is of selected length.
  • step (c) repeating step (c) after each new, exposed lower 7 end of the strand has been presented.
  • 32. The method according to claim 31 including the step of collecting and recombining material obtained from selected batches of the fibrous material to obtain. composite portions of specified weight.

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  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
  • Manufacture Of Tobacco Products (AREA)
US00023181A 1969-04-03 1970-03-27 Weight batching device for fibrous material such as shredded tobacco Expired - Lifetime US3716061A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6905203A NL6905203A (cs) 1969-04-03 1969-04-03

Publications (1)

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US3716061A true US3716061A (en) 1973-02-13

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US00023181A Expired - Lifetime US3716061A (en) 1969-04-03 1970-03-27 Weight batching device for fibrous material such as shredded tobacco

Country Status (10)

Country Link
US (1) US3716061A (cs)
JP (1) JPS4841560B1 (cs)
BE (1) BE748355A (cs)
CH (1) CH525629A (cs)
DE (1) DE2015790C3 (cs)
DK (1) DK125509B (cs)
FR (1) FR2042919A5 (cs)
GB (1) GB1305992A (cs)
IE (1) IE34065B1 (cs)
NL (1) NL6905203A (cs)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013087384A1 (de) * 2011-12-16 2013-06-20 Robert Bosch Gmbh Schlauchbeutelmaschine zur abfüllung eines produkts

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008056296A1 (de) * 2008-11-07 2010-05-12 Hauni Maschinenbau Ag Vorrichtung und Verfahren zur Zufuhr von Schnitttabak von einer Tabakaufgabeeinheit zu einer Tabakverarbeitungsmaschine
CN112021627B (zh) * 2020-07-10 2022-03-18 张家口卷烟厂有限责任公司 制丝流水线异常监控系统

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US460001A (en) * 1891-09-22 Apparatus for handling tobacco
GB190808316A (en) * 1908-04-14 1909-02-11 Charles James Fox Improvements in or relating to Feeding Mechanism for Cigarette Making Machines.
US1941429A (en) * 1931-04-13 1933-12-26 Firm Universelle Cigarettenmas Apparatus for supplying a machine with material
FR826914A (fr) * 1936-12-31 1938-04-13 Decoufle Usines Procédé et appareil pour la distribution du tabac
DE662003C (de) * 1935-07-02 1938-07-02 Martin Brinkmann Akt Ges Verfahren und Vorrichtung zum Herstellen eines Tabakvliesses
US2933220A (en) * 1957-07-03 1960-04-19 Bartelt Engineering Co Dispensing device
FR1273931A (fr) * 1960-09-06 1961-10-20 Decoufle Usines Distributeur de tabac
US3028865A (en) * 1957-03-07 1962-04-10 Hauni Werke Koerber & Co Kg Cigar making machines
US3070847A (en) * 1960-03-16 1963-01-01 Hergeth Kg Masch Apparate Apparatus for regulating the density of cotton fed to cleaning and opening machines in cotton and fibre spinning
US3276452A (en) * 1961-10-31 1966-10-04 American Mach & Foundry Cigarette machine feed
NL6703892A (cs) * 1966-03-21 1967-09-22

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US460001A (en) * 1891-09-22 Apparatus for handling tobacco
GB190808316A (en) * 1908-04-14 1909-02-11 Charles James Fox Improvements in or relating to Feeding Mechanism for Cigarette Making Machines.
US1941429A (en) * 1931-04-13 1933-12-26 Firm Universelle Cigarettenmas Apparatus for supplying a machine with material
DE662003C (de) * 1935-07-02 1938-07-02 Martin Brinkmann Akt Ges Verfahren und Vorrichtung zum Herstellen eines Tabakvliesses
FR826914A (fr) * 1936-12-31 1938-04-13 Decoufle Usines Procédé et appareil pour la distribution du tabac
US3028865A (en) * 1957-03-07 1962-04-10 Hauni Werke Koerber & Co Kg Cigar making machines
US2933220A (en) * 1957-07-03 1960-04-19 Bartelt Engineering Co Dispensing device
US3070847A (en) * 1960-03-16 1963-01-01 Hergeth Kg Masch Apparate Apparatus for regulating the density of cotton fed to cleaning and opening machines in cotton and fibre spinning
FR1273931A (fr) * 1960-09-06 1961-10-20 Decoufle Usines Distributeur de tabac
US3276452A (en) * 1961-10-31 1966-10-04 American Mach & Foundry Cigarette machine feed
NL6703892A (cs) * 1966-03-21 1967-09-22

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013087384A1 (de) * 2011-12-16 2013-06-20 Robert Bosch Gmbh Schlauchbeutelmaschine zur abfüllung eines produkts
CN103998342A (zh) * 2011-12-16 2014-08-20 罗伯特·博世有限公司 用于填充产品的软管袋机
US20140352266A1 (en) * 2011-12-16 2014-12-04 Robert Bosch Gmbh Tubular bag machine for filling a product
CN103998342B (zh) * 2011-12-16 2016-04-06 罗伯特·博世有限公司 用于填充产品的软管袋机

Also Published As

Publication number Publication date
IE34065B1 (en) 1975-01-22
DE2015790A1 (de) 1970-10-15
NL6905203A (cs) 1970-10-06
DE2015790B2 (de) 1973-07-19
DE2015790C3 (de) 1974-02-21
CH525629A (de) 1972-07-31
BE748355A (nl) 1970-09-16
GB1305992A (cs) 1973-02-07
IE34065L (en) 1970-10-03
JPS4841560B1 (cs) 1973-12-07
FR2042919A5 (cs) 1971-02-12
DK125509B (da) 1973-03-05

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