EP0940092A1 - Trichter - Google Patents

Trichter Download PDF

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Publication number
EP0940092A1
EP0940092A1 EP98301429A EP98301429A EP0940092A1 EP 0940092 A1 EP0940092 A1 EP 0940092A1 EP 98301429 A EP98301429 A EP 98301429A EP 98301429 A EP98301429 A EP 98301429A EP 0940092 A1 EP0940092 A1 EP 0940092A1
Authority
EP
European Patent Office
Prior art keywords
roller
hopper
shaft
tobacco
hopper according
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.)
Granted
Application number
EP98301429A
Other languages
English (en)
French (fr)
Other versions
EP0940092B1 (de
Inventor
David Thomas Davis
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.)
Philip Morris Products SA
Philip Morris Products Inc
Original Assignee
Philip Morris Products SA
Philip Morris Products Inc
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
Priority to EP98301429A priority Critical patent/EP0940092B1/de
Application filed by Philip Morris Products SA, Philip Morris Products Inc filed Critical Philip Morris Products SA
Priority to ES98301429T priority patent/ES2198650T3/es
Priority to AT98301429T priority patent/ATE238702T1/de
Priority to DE69814034T priority patent/DE69814034T2/de
Priority to ARP990100777A priority patent/AR016180A1/es
Priority to PCT/US1999/003717 priority patent/WO1999043222A2/en
Priority to AU27776/99A priority patent/AU2777699A/en
Publication of EP0940092A1 publication Critical patent/EP0940092A1/de
Application granted granted Critical
Publication of EP0940092B1 publication Critical patent/EP0940092B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A24C5/39—Tobacco feeding devices
    • A24C5/398—Driving arrangements
    • 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
    • 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
    • A24C5/395—Tobacco feeding devices with arrangements in the hopper, e.g. for spreading, tamping

Definitions

  • the present invention relates to a hopper for particulate material such as tobacco, and is especially useful in tobacco rod makers.
  • a spiked delivery roller extends across the hopper, parallel to the carded drum which dispenses tobacco from the hopper to the suction box of the tobacco rod maker.
  • a single photo sensitive cell is disposed in a side wall of the hopper; when the photo sensitive cell senses the presence of tobacco, it sends a signal to the motor controlling the delivery roller to slow or stop it.
  • a hopper for particulate material such as tobacco comprising a delivery roller disposed in the path of incoming material and a sensor for sensing a level of material in the hopper, characterised in that the delivery roller comprises a plurality of independently driven roller sections each associated with a sensor such that activation of the sensor causes the motion of the associated roller section to change.
  • the sensors sense a desired maximum level of material in the hopper.
  • the sensors respond to detecting material by causing the associated roller section to rotate.
  • the hopper 10 shown in the drawings is a tobacco rod maker hopper of generally conventional design.
  • a delivery roller 12 is disposed across the inlet of the hopper.
  • the circumferential surface of the roller 12 has spikes 14 to engage with tobacco entering the hopper.
  • the roller 12 is mounted on a driven shaft 16 and comprises four separate roller sections 12a,b,c,d.
  • At the bottom of the hopper two rotatable carded drums 18 (only one drum is shown) are disposed.
  • a generally horizontal row of four photo sensitive cells 20a,b,c,d is disposed between the level of the delivery roller 12 and the carded drum 18, in a location corresponding to the desired maximum level of tobacco in the hopper.
  • Each cell 20a,b,c,d is connected to an actuator for a respective roller section 12a,b,c,d, and each cell is at a point in the hopper wall vertically below the projection of the respective roller section onto the hopper side wall.
  • tobacco enters the hopper 10 from above. All the delivery roller sections 12a,b,c,d rotate to distribute incoming tobacco onto the rotating carded drum 18 which forms the floor of the hopper. This situation, shown in figure 1, obtains so long as the level of tobacco in the hopper remains below the level of all the photo sensitive cells 20a,b,c,d.
  • Figure 2 shows a hopper 10 in which the level of tobacco 22 has risen to the desired maximum level adjacent two cells 20b,d. Activation of these cells by the tobacco causes them to send a signal which disengages the respective roller sections 12b,d, which causes less tobacco to be distributed to the regions of the hopper 10 covered by the activated photo sensitive cells 20b,d.
  • the disengaged roller sections are reengaged and rotate, distributing tobacco to those regions once more. If desired, re-engagement of roller sections may be delayed for a fixed time after the respective photo sensitive cell is deactivated, allowing the level of tobacco in the region monitored by the activated cell to drop below the desired maximum.
  • the signal sent by a photo sensitive cell on activation can cause the respective roller section to engage the driven shaft in any of several ways.
  • the signal can cause an electromagnetic clutch within the roller section to engage the driven shaft, causing the roller section to rotate.
  • the signal can cause a solenoid to move a key in one of the shaft or the roller section into a keyway in the other; the relative rotation of the driven shaft and the unengaged roller section will bring the key and keyway into opposition so that engagement takes place.
  • FIG. 3 shows a pneumatic clutch arrangement.
  • a delivery roller 12 comprises four roller sections 12a,b,c,d (the spikes of the roller are not shown).
  • the driven shaft 16 on which the roller 12 is mounted has passageways 24a,b,c,d each of which opens in the circumferential wall of the shaft 16 away from the roller 12 and each of which ends in an actuator chamber 26a,b,c,d which opens in the circumferential wall of the shaft 16 adjacent a respective one of the roller sections 12a,b,c,d.
  • Each actuator chamber 26a,b,c,d houses a friction block 28a,b,c,d which engages sealingly with the side walls of the chamber 26a,b,c,d but is free to move in the chamber toward and away from the respective roller section 12a,b,c,d.
  • two of the channels 24a,b open in the circumferential wall of the shaft 16 to one side of the roller 12 and two to the other side.
  • a source of compressed air (not shown) is connected to each of the passageways 24a,b,c,d by air supply pipes 30a,b,c,d.
  • the supply pipes 30a,b,c,d are connected to the passageways 24a,b,c,d in such a manner that the shaft 16 can rotate without rotation of the supply pipes.
  • the connection may be such that each supply pipe 30a,b,c,d is in constant communication with a respective passageway 24a,b,c,d throughout a revolution of the shaft 16. This can be achieved by providing a plenum block 32 circumferentially around the shaft 16 through which the air supply pipes 30a,b,c,d pass.
  • a valve (not shown) in the respective air supply pipe 30a is open admitting air under pressure into the circumferential plenum chamber 34a in the plenum block 32 and thence into the respective passageway 24a in the rotating shaft 16 and the actuator chamber 26a at the other end of the passageway 24a.
  • the raised air pressure in the actuator chamber 26a urges the friction block 28a in the actuator chamber 26a against the wall of the respective roller section 12a, causing it to rotate with the shaft 16.
  • the valve in the air supply pipe 30a closes.
  • the air pressure in the actuation chamber 26a returns to atmospheric as air leaks out of the passageway 24a, so that the friction block 28a is no longer urged against the wall of the roller section 12a, thus disengaging that roller section from the shaft 16 so that the roller section stops rotating.
  • the other roller sections 12b,c,d are disengaged and engaged in the same way in response to a signal or the lack of a signal from the respective sensors 20b,c,d in the hopper.
  • the signal from the activated cell can pass through a processing device which then sends a signal to the respective roller section. It will also be appreciated that the cell may be activated to send a signal when it is not detecting tobacco, and cease to send the signal or send a different signal when it detects tobacco.
  • the present invention provides a hopper which can control the level of its contents more precisely than is the case for conventional hoppers. This allows an even delivery of material from the hopper to be achieved. This is particularly advantageous in the case of a tobacco rod maker hopper, since it ensures an even tobacco density in the resulting tobacco rod.

Landscapes

  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
EP98301429A 1998-02-26 1998-02-26 Trichter Expired - Lifetime EP0940092B1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
ES98301429T ES2198650T3 (es) 1998-02-26 1998-02-26 Tolva mejorada.
AT98301429T ATE238702T1 (de) 1998-02-26 1998-02-26 Trichter
DE69814034T DE69814034T2 (de) 1998-02-26 1998-02-26 Trichter
EP98301429A EP0940092B1 (de) 1998-02-26 1998-02-26 Trichter
ARP990100777A AR016180A1 (es) 1998-02-26 1999-02-24 Una tolva
PCT/US1999/003717 WO1999043222A2 (en) 1998-02-26 1999-02-25 Improved hopper
AU27776/99A AU2777699A (en) 1998-02-26 1999-02-25 Improved hopper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98301429A EP0940092B1 (de) 1998-02-26 1998-02-26 Trichter

Publications (2)

Publication Number Publication Date
EP0940092A1 true EP0940092A1 (de) 1999-09-08
EP0940092B1 EP0940092B1 (de) 2003-05-02

Family

ID=8234688

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98301429A Expired - Lifetime EP0940092B1 (de) 1998-02-26 1998-02-26 Trichter

Country Status (7)

Country Link
EP (1) EP0940092B1 (de)
AR (1) AR016180A1 (de)
AT (1) ATE238702T1 (de)
AU (1) AU2777699A (de)
DE (1) DE69814034T2 (de)
ES (1) ES2198650T3 (de)
WO (1) WO1999043222A2 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1397963A1 (de) * 2002-09-13 2004-03-17 Hauni Maschinenbau AG Verteiler einer Zigarettenstrangmaschine sowie Förderwalze und Schlägerwalze
ITUB20161166A1 (it) * 2016-02-29 2017-08-29 Gd Spa Macchina e metodo per il confezionamento di sigarette.

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE226423C (de) *
DE447288C (de) * 1926-06-24 1927-07-20 Ewald Koerner Abstreifwalze fuer Tabakausbreiter an Zigarettenmaschinen
GB286406A (en) * 1927-01-03 1928-03-08 Oscar Legg Improved picker roller for cigarette making machines
FR1273931A (fr) * 1960-09-06 1961-10-20 Decoufle Usines Distributeur de tabac
US4235248A (en) * 1977-12-27 1980-11-25 Hauni-Werke Korber & Co. Kg Apparatus for regulating the configuration of the upper surface of a supply of tobacco in a distributor for use in cigarette makers or the like
GB2093330A (en) * 1981-02-23 1982-09-02 Gd Spa Supplying tobacco

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3535629A (en) * 1967-07-26 1970-10-20 Liggett & Myers Inc Microwave moisture measuring apparatus having automatic level and flow control means
DE3913997A1 (de) * 1989-02-14 1990-08-23 Rieter Ag Maschf Dosierverfahren und -vorrichtung zur abgabe vorgebbarer mengen von faserflocken
US5267578A (en) * 1989-07-27 1993-12-07 Rothmans, Benson & Hedges Inc. Controlled opening of fibrous materials

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE226423C (de) *
DE447288C (de) * 1926-06-24 1927-07-20 Ewald Koerner Abstreifwalze fuer Tabakausbreiter an Zigarettenmaschinen
GB286406A (en) * 1927-01-03 1928-03-08 Oscar Legg Improved picker roller for cigarette making machines
FR1273931A (fr) * 1960-09-06 1961-10-20 Decoufle Usines Distributeur de tabac
US4235248A (en) * 1977-12-27 1980-11-25 Hauni-Werke Korber & Co. Kg Apparatus for regulating the configuration of the upper surface of a supply of tobacco in a distributor for use in cigarette makers or the like
GB2093330A (en) * 1981-02-23 1982-09-02 Gd Spa Supplying tobacco

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1397963A1 (de) * 2002-09-13 2004-03-17 Hauni Maschinenbau AG Verteiler einer Zigarettenstrangmaschine sowie Förderwalze und Schlägerwalze
ITUB20161166A1 (it) * 2016-02-29 2017-08-29 Gd Spa Macchina e metodo per il confezionamento di sigarette.

Also Published As

Publication number Publication date
ATE238702T1 (de) 2003-05-15
AU2777699A (en) 1999-09-15
EP0940092B1 (de) 2003-05-02
AR016180A1 (es) 2001-06-20
WO1999043222A3 (en) 1999-10-07
DE69814034D1 (de) 2003-06-05
WO1999043222A2 (en) 1999-09-02
DE69814034T2 (de) 2004-03-11
ES2198650T3 (es) 2004-02-01

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