EP0790006B1 - Verfahren und Vorrichtung zum Bestimmen der Dichte eines Faserstrangs der tabakverarbeitenden Industrie - Google Patents
Verfahren und Vorrichtung zum Bestimmen der Dichte eines Faserstrangs der tabakverarbeitenden Industrie Download PDFInfo
- Publication number
- EP0790006B1 EP0790006B1 EP97101524A EP97101524A EP0790006B1 EP 0790006 B1 EP0790006 B1 EP 0790006B1 EP 97101524 A EP97101524 A EP 97101524A EP 97101524 A EP97101524 A EP 97101524A EP 0790006 B1 EP0790006 B1 EP 0790006B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strand
- density
- radiation
- signal
- measuring signals
- 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
Links
- 238000000034 method Methods 0.000 title claims description 15
- 241000208125 Nicotiana Species 0.000 title description 17
- 235000002637 Nicotiana tabacum Nutrition 0.000 title description 17
- 230000005855 radiation Effects 0.000 claims description 39
- 238000011156 evaluation Methods 0.000 claims description 17
- 235000019504 cigarettes Nutrition 0.000 claims description 13
- 230000000149 penetrating effect Effects 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 27
- 238000001739 density measurement Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012937 correction Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 230000002285 radioactive effect Effects 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 229920004011 Macrolon® Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- CIOAGBVUUVVLOB-NJFSPNSNSA-N Strontium-90 Chemical compound [90Sr] CIOAGBVUUVVLOB-NJFSPNSNSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000019506 cigar Nutrition 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- XXUZFRDUEGQHOV-UHFFFAOYSA-J strontium ranelate Chemical compound [Sr+2].[Sr+2].[O-]C(=O)CN(CC([O-])=O)C=1SC(C([O-])=O)=C(CC([O-])=O)C=1C#N XXUZFRDUEGQHOV-UHFFFAOYSA-J 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
Images
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
- A24C5/32—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
- A24C5/3412—Examining cigarettes or the rod, e.g. for regulating the feeding of tobacco; Removing defective cigarettes by means of light, radiation or electrostatic fields
Definitions
- the invention relates to a method according to the preamble of claim 1 and an apparatus according to the preamble of claim 6.
- Density measuring devices are used in extruders of the tobacco processing industry used to determine the amount of material and the uniformity of the material distribution in the strand to be monitored and ensured as far as possible in accordance with certain specifications. This applies to the tobacco content in a tobacco rod for the production of smokable Tobacco items such as cigarettes, pillars, cigarillos etc. as well as for the salary of filter material in a filter train. It is known that the strand is evenly filled an important quality criterion for the articles made from the strand. As a measure of that Filling the strand, i.e. for the amount of tobacco or filter material in the strand, will be Density recorded.
- Density measuring devices with radioactive are currently known and generally used Radiation - usually with beta radiation from a Strontium 90 preparation (U.S. Patent 4,424,443) - penetrate the strand, the intensity decrease as it penetrates of the strand is measured as a measure of the density of the strand.
- the one with this measuring device Measurement results obtained are characterized by high reliability, but are because of the required permanent beta emitter with complex security measures bought on the machine.
- US Pat. No. 3,056,026 shows such a measuring device, the basically works like a density measuring head with a nuclear radiation source.
- the strand penetrating x-rays are detected with an ionization chamber, what the measurement slow and low resolution in the longitudinal direction of the strand.
- Patent 4,865,052 shows also a device for measuring the density of an uncovered tobacco rod, which is conveyed in the tobacco channel of a strand machine, by means of penetrating the strand X-rays. The radiation is detected with a sensor array. From the bottom the measured values of the sensors are summed up to the sum of the tobacco channel reaches a predetermined target value, and the downstream one is correspondingly arranged Excess decrease device set, so that here a default setting of Weight or the density of the strand takes place. For measurements on the cigarette rod is this does not make sense.
- the object of the invention is a further method and a further device of the type described above.
- the invention offers the advantage of a very fast and accurate high density measurement Resolution. This ensures that the drift phenomena of the detectors or Changes in the intensity of the radiation source do not affect the measurement results can.
- the invention therefore offers a very reliable strand density measurement.
- the security-related Difficulties arise from a nuclear beta source not up here. The security effort is low.
- the dimensions of the X-ray measuring heads according to the invention can be adapted to those of a nuclear measuring head are so that this is exchanged in existing machines for the X-ray measuring head can be.
- Figure 1 shows a schematic diagram of a device for determining the density of a Fiber strands of the tobacco processing industry according to the invention.
- a continuous Moving cigarette rod designates a wrapper 2 made of cigarette paper and has a filling 3 of tobacco fibers.
- the strand can also be one Filter strand of the tobacco processing industry or around a strand for the production of Trade cigarillos, cigars, cheroots, etc.
- the strand runs in the longitudinal direction, that is to say approximately perpendicular to the plane of the drawing in FIG. 1 a conveyor section of a cigarette rod machine, which is not shown in the drawing, for example of the type Protos 100 from the applicant, promoted and passes through a tube 6 that is transparent to X-rays in a measuring station 4.
- This tube can consist, for example, of a thin aluminum or titanium sheet.
- a polycarbonate (PC) for example, is preferred as the material for the tube MACROLON from BAYER AG or a polyethylene ether ketone (PEEK) with one Wall thickness of about 0.2 mm used.
- the representation in the drawing is not to scale, so that here the wall thickness of the tube 6 appears too large.
- An x-ray radiation source 7 emits x-ray radiation 8, which in FIG is idealized. In fact, the radiation does not go in parallel from the X-ray source out.
- the limitation of the x-ray radiation 8 is caused by apertures 9 and 9a but that through the gaps 11 and 11a formed by the diaphragms a radiation component penetrates the strand, the radiation course of a parallel radiation course is approximated at least to an extent sufficient for the measurement purpose.
- X-ray source comes, for example, an industrial X-ray device of the type MF1-30-2 with a normal focus X-ray tube FK 60-10 W from Rich. Seifert & Co., D-22926 Ahrensburg, in question.
- the measurement of the intensity of the X-radiation is carried out by means of an X-ray receiver 12, which is attached behind the gap 11a.
- This X-ray radiation receiver 12 is designed as a line array 13 with a plurality of X-ray detectors 14.1 to 14.n, which are arranged in a row one behind the other in the array 13.
- n is the total number of X-ray detectors 14 provided in the array 13.
- n 11.
- the x-ray-sensitive area of the x-ray detectors is, for example, 1 mm in height, that is to say transversely to the strand direction, and 4 mm in width, that is to say in the strand direction.
- the gaps 11 and 11a are approximately as wide as the detectors 14.
- the X-ray detectors 14.1 to 14.n are all connected separately to an evaluation arrangement 16, which the measurement signals emitted by the X-ray detectors into one Processed density signal 17, which is sent to a control arrangement 18 of an influencing device the strand density is released.
- a device is in a cigarette rod machine for example a device for removing excess from the tobacco rod, with which the amount of tobacco entering the cigarette rod is adjusted becomes.
- Such devices are known and need no further description here.
- the detector array 13 comprises at least one additional X-ray detector 14.2 which detects a part of the X-rays which does not penetrate the strand. Its measurement signal S 2 is processed as a reference signal in the evaluation arrangement 16.
- the detector array 13 also has at least one further X-ray detector 14.1, which is permanently shielded from the radiation from the X-ray source 7. This further detector 14.1 permanently emits a signal S 1 corresponding to its dark current, which is used in the evaluation arrangement 16 to compensate for drift phenomena in the detectors. Only one additional x-ray detector and another x-ray detector are shown in the drawing. The measurement can be further improved and made more reliable if more detectors each receive the undamped X-rays or generate a signal corresponding to their dark current.
- the measuring device is first calibrated.
- the X-ray radiation source 7 is switched off or dimmed toward the radiation receiver 12 by means of a shutter (not shown).
- the measurement signals S 1 to S n of the X-ray detectors 14.1 to 14.n now represent their dark currents.
- the measurement signals S 1 to S n obtained when the X-ray radiation source is switched off or the X-ray radiation receivers are dimmed are also referred to as dark signals.
- the dark signals of the X-ray detectors 14.2 to 14.n are processed with the dark signal of the X-ray detector 14.1, which is also referred to as S D for better identification, to compensation values j D, 2 to j D, n which are suitable for later use in density measurement in Storage sections 19.2 to 19.n of the evaluation arrangement 16 are stored as constants. Then, with the X-ray source 7 switched on, the current of the X-ray detectors is measured at full intensity of the radiation without a strand.
- the resulting measurement signals S 2 to S n of the X-ray radiation detectors 14.2 to 14.n represent reference measurement values.
- the reference measurement values S 3 to S n are identified with the reference measurement value S 2 of the additional X-ray radiation detector 14.2, which is also referred to as S 0 for better identification as a reference measurement value is processed into reference values j 0.3 to j 0, n , which are stored as constants in memory sections 21.3 to 21.n of the evaluation arrangement 16.
- a strand 1 is moved through the tube 6 in the measuring station 12, which attenuates the radiation striking the X-ray radiation detectors in accordance with its density.
- the intensity of the radiation weakened in accordance with the density is detected with the X-ray detectors 14.3 to 14.n, which emit the corresponding measurement signals S 3 to S n to the evaluation arrangement 16.
- the evaluation arrangement compares these measurement signals in the function blocks 22.3 to 22.n with the stored compensation values j D, 3 to j D, n corresponding to the dark currents of the X-ray detectors 14.3 to 14.n.
- the compensation values for their part are corrected in calculation stages 24.3 to 24.n as a function of the respectively current dark signal S D of the X-ray detector 14.1 which is permanently shielded from the X-rays, thereby compensating for drift phenomena occurring in the detectors.
- the effect of the aging processes of the detectors or of heat changes in their characteristics is thus reliably eliminated.
- the comparators 22.3 to 22.n give corrected measurement signals S 3, k to S n, k to the downstream calculation stages 23.3 to 23, n, which represent the X-rays which hit the detectors 14.3 to 14.n after passing through the strand, ie correspond to the strand density in the strand height position detected by the respective detector.
- reference signals I 3, k to I n, k are transferred to the calculation stages 23.3 to 23.n. These reference signals result from the reference values j 0.3 to j 0, n stored in the memory sections 21.3 to 21.n, which are stored in correction stages 25.3 to 25.n as a function of the current reference measurement signal S 2 or S 0 full X-ray illuminated X-ray detector 14.2 can be corrected.
- a correction signal S 2, k is formed by comparison with the reference value j D, 2 of the detector 14.2 in the comparator stage 22.2, which is corrected in the compensation section 24.2 as a function of the dark signal S D of the permanently shielded radiation receiver 14.1 and is stored in the memory section 19.2 as a constant, which is used in correction stages 25.3 to 25.n to correct the reference values j 0.3 to j 0, n .
- the additional detector 14.2 which continuously receives the undamped intensity of the X-ray radiation source 7 and whose measurement signal S 2 represents a permanent current reference signal S 0
- the further detector 14.1 which is permanently shielded from the X-ray radiation source 7 and always on Outputs dark current signal S D as a compensation signal, achieved that the density measurement is independent of fluctuations in intensity of the X-ray source 7, temperature drifts and signs of aging of the detectors.
- the corrected measurement signals S 3, k to S n, k are processed in the calculation stages 23.3 to 23.n or with the corrected reference signals I 3, k to I n, k to separate density signals D 3 to D n , each of which is the density in represent an associated string height position. This is done by logarithmizing the ratio (quotient) of the reference signal and the corrected measurement signal.
- the resulting separate density signals D 3 to D n are added in an addition stage 26 and output as a density signal 17 to the connected control arrangement 18. If necessary, the mean value of the separate density signals D 3 to D n can also be formed as a density signal representing the strand density.
- the logarithmization of the individual measured values in the calculation stages 23 has the advantage over the logarithmization of the integrated density value that is common today that a mathematically correct and thus a more reliable and more accurate statement about the strand density in the currently illuminated strand section results.
- Another possibility provided according to the invention is the quotients multiply the reference signals and the associated corrected measurement signals first and log the product so formed to the desired density signal to win.
- the extent of the radiation sensitive surface of the X-ray detectors is preferably very small. So currently detectors are preferred whose radiation sensitive Area in the longitudinal direction of the strand about 4 mm and across the strand about 1 mm is.
- the individual detectors thus detect strand sections of very little extent, in which the density is assumed to be at least approximately homogeneous can. This also contributes significantly to the accuracy of the measurement results, because the logarithm of the individual intensity values is a mathematically correct evaluation step, so that falsifications of results are prevented. This training also leads the High resolution detectors.
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Manufacturing Of Cigar And Cigarette Tobacco (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Description
- Figur 1
- eine Prinzipdarstellung einer Meßvorrichtung nach der Erfindung und
- Figur 2
- eine Blockdarstellung der Meßwertauswertung.
i ist eine laufende Nummer zwischen 1 und n. Die röntgenempfindliche Fläche der Röntgendetektoren beträgt beispielsweise 1 mm in der Höhe, also quer zur Strangrichtung und 4 mm in der Breite, also in Strangrichtung. Die Spalte 11 und 11a sind etwa so breit wie die Detektoren 14.
Claims (14)
- Verfahren zum Bestimmen der Dichte eines Faserstrangs der tabakverarbeitenden Industrie, insbesondere eines Zigarettenstrangs, bei dem die Intensität einer den Strang durchdringenden Röntgenstrahlung erfaßt, ein der Intensität entsprechendes Meßsignal gebildet und das Meßsignal zu einem die Dichte des Strangs repräsentierenden Dichtesignal verarbeitet wird, dadurch gekennzeichnet, daß die Intensität der den Strang durchdringenden Röntgenstrahlung in einer Vielzahl von Stranghöhenpositionen separat erfaßt wird, daß den erfaßten Intensitäten entsprechende Meßsignale gebildet werden und daß alle Meßsignale zu einem einzigen Dichtesignal verarbeitet werden.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß in jeder Stranghöhenposition die Intensität eines einen Strangabschnitt mit vernachlässigbarer Dichteinhomogenität durchdringenden Teils der Röntgenstrahlung erfaßt wird.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß zusätzlich die Intensität eines den Strang nicht durchdringenden Teils der Röntgenstrahlung als Referenzstrahlung separat erfaßt und ein entsprechendes Meßsignal als Referenz signal gebildet wird und daß dieses Referenzsignal mit den Meßsignalen zu einem Dichtesignal verarbeitet wird.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Meßsignale durch Summenbildung zu einem Dichtesignal verarbeitet werden.
- Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Meßsignale vor der Summenbildung logarithmiert werden.
- Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Meßsignale multipliziert werden und das Produkt logarithmiert wird.
- Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß wenigstens ein Röntgenstrahlungsdetektor gegen die Röntgenstrahlung abgeblendet wird, daß ein Dunkelstrom des abgeblendeten Detektors erfaßt und ein entsprechendes Dunkelsignal erzeugt wird und daß dieses Dunkelsignal bei der Bildung von Dichtesignalen aus den anderen Meßsignalen zur Kompensation von Drifteinflüssen genutzt wird.
- Vorrichtung zum Bestimmen der Dichte eines Faserstrangs der tabakverarbeitenden Industrie, insbesondere eines Zigarettenstrangs, welche eine einer Strangführung zugeordnete Meßstation mit einer Röntgenstrahlungsquelle und einem der Röntgenstrahlungsquelle gegenüber zu ihr hin ausgerichteten Strahlungsempfänger zum Erfassen einer einen in der Strangführung bewegten Strang durchdringenden Röntgenstrahlung und zum Erzeugen entsprechender Meßsignale und eine mit dem Strahlungsempfänger verbundene Auswertanordnung zum Verarbeiten der Meßsignale zu die Strangdichte repräsentierenden Dichtesignalen aufweist, dadurch gekennzeichnet, daß der Strahlungsempfänger (12) als Linienarray (13) mit einer Vielzahl von in einer Reihe angeordneten Röntgenstrahlungsdetektoren (14.1 bis 14.n) zum Erfassen der Strangdichte in einer Vielzahl von Stranghöhenpositionen und zum Erzeugen entsprechender Meßsignale (S1 bis Sn) ausgebildet ist und daß die Auswertanordnung (16) die Meßsignale zu einem Dichtesignal (17) verarbeitend ausgebildet ist.
- Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß das Linienarray (13) wenigstens einen zusätzlichen Röntgenstrahlungsdetektor (14.2) aufweist, der einen den Strang (1) nicht durchdringenden Teil der Röntgenstrahlung erfaßt und ein entsprechendes Meßsignal (S2) als Referenzsignal (S0) erzeugt, und daß die Auswertanordnung (16) die Meßsignale (S3 bis Sn) in Abhängigkeit von diesem Referenzsignal (S0) korrigierend ausgebildet ist.
- Vorrichtung nach Anspruch 8 oder 9, dadurch gekennzeichnet, daß das Linienarray (13) wenigstens einen weiteren Röntgenstrahlungsdetektor(14.1) aufweist, der gegen die Röntgenstrahlung (8) abgeschirmt ist und ein seinem Dunkelstrom entsprechendes Dunkelsignal (SD) erzeugt und daß die Auswertanordnung (16) die Meßsignale (S3 bis Sn) und/oder das Referenzsignal (S0) zur Kompensation von Drifteinflüssen in Abhängigkeit von diesem Dunkelsignal (SD) korrigierend ausgebildet ist.
- Vorrichtung nach einem der Ansprüche 8 bis 10, dadurch gekennzeichnet, daß die Auswertanordnung (16) aus den Meßsignalen (S3 bis Sn) der die den Strang (1) durchdringende Röntgenstrahlung erfassenden Detektoren (14.3 bis 14.n) die Summe bildend und die Summe zu einem die Dichte des Faserstrangs repräsentierenden Dichtesignal (17) verarbeitend ausgebildet ist.
- Vorrichtung nach einem der Ansprüche 8 bis 11, dadurch gekennzeichnet, daß die Auswertanordnung (16) die Meßsignale wenigstens der Detektoren (14.3 bis 14.n), welche die den Faserstrang (1) durchdringende Röntgenstrahlung erfassen, vor der Summenbildung logarithmierend ausgebildet ist.
- Vorrichtung nach einen der Ansprüche 8 bis 11, dadurch gekennzeichnet, daß die Auswertanordnung (16) die Meßsignale wenigstens der Detektoren (14.3 bis 14.n), welche die den Faserstrang (1) durchdringende Röntgenstrahlung erfassen, multiplizierend und das Produkt logarithmierend ausgebildet ist.
- Vorrichtung nach einem der Ansprüche 8 bis 13, dadurch gekennzeichnet, daß die Röntgendetektoren (14.1 bis 14.n) des Linienarrays (13) so klein ausgebildet sind, daß die Dichte des von jedem Detektor erfaßten Strangbereichs im wesentlichen homogen erscheint.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19605618 | 1996-02-15 | ||
| DE19605618A DE19605618A1 (de) | 1996-02-15 | 1996-02-15 | Verfahren und Vorrichtung zum Bestimmen der Dichte eines Faserstrangs der tabakverarbeitenden Industrie |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0790006A2 EP0790006A2 (de) | 1997-08-20 |
| EP0790006A3 EP0790006A3 (de) | 1999-06-09 |
| EP0790006B1 true EP0790006B1 (de) | 2002-04-17 |
Family
ID=7785497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97101524A Expired - Lifetime EP0790006B1 (de) | 1996-02-15 | 1997-01-31 | Verfahren und Vorrichtung zum Bestimmen der Dichte eines Faserstrangs der tabakverarbeitenden Industrie |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5762075A (de) |
| EP (1) | EP0790006B1 (de) |
| JP (1) | JPH09224632A (de) |
| DE (2) | DE19605618A1 (de) |
| ES (1) | ES2173348T3 (de) |
Cited By (1)
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|---|---|---|---|---|
| US10721959B2 (en) | 2016-06-10 | 2020-07-28 | International Tobacco Machinery Poland Sp. Z O.O. | Apparatus for determination of the position of an insert in rod-like articles of the tobacco industry |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2839476B2 (ja) * | 1996-06-13 | 1998-12-16 | 日本たばこ産業株式会社 | たばこ巻上装置 |
| US6198537B1 (en) | 1997-07-11 | 2001-03-06 | Philip Morris Incorporated | Optical inspection system for the manufacture of banded cigarette paper |
| US6020969A (en) * | 1997-07-11 | 2000-02-01 | Philip Morris Incorporated | Cigarette making machine including band inspection |
| US5966218A (en) * | 1997-07-11 | 1999-10-12 | Philip Morris Incorporated | Bobbin optical inspection system |
| GB9814701D0 (en) * | 1998-07-08 | 1998-09-02 | Avs Metrology Limited | Radiation monitoring of a physical propert of a material |
| WO2001040781A1 (fr) * | 1999-11-30 | 2001-06-07 | Japan Tobacco Inc. | Appareil de test a rayons x |
| DE19959034B4 (de) * | 1999-12-08 | 2008-01-17 | Hauni Maschinenbau Ag | Verfahren und Vorrichtung zum Zuführen eines vorzugsweise flüssigen Zusatzstoffes auf eine bewegte Bahn |
| US6909094B2 (en) * | 2003-02-12 | 2005-06-21 | Philip Norris Usa Inc. | System and method for terahertz imaging using a single terahertz detector |
| JP2005037398A (ja) * | 2003-07-17 | 2005-02-10 | Hauni Maschinenbau Ag | 連続して送られる製品の内部の異物を認識する方法及びこの方法を実施する装置 |
| JP4264382B2 (ja) * | 2004-04-30 | 2009-05-13 | 株式会社モリタ製作所 | 撮影画像の自動露出制御方法及びその方法を用いた自動露出制御装置 |
| JP4264381B2 (ja) * | 2004-04-30 | 2009-05-13 | 株式会社モリタ製作所 | 固体撮像素子の2次元画像処理方法及び医療用デジタルx線撮影装置 |
| DE102004057092A1 (de) * | 2004-11-25 | 2006-06-01 | Hauni Maschinenbau Ag | Messen des Durchmessers von stabförmigen Artikeln der Tabak verarbeitenden Industrie |
| DE102014209721A1 (de) * | 2014-05-22 | 2015-11-26 | Hauni Maschinenbau Ag | Verfahren zur Bestimmung einer Eigenschaft eines stabförmigen Artikels der Tabak verarbeitenden Industrie mittels Röntgenstrahlung, und Probenhalter |
| CN104865154A (zh) * | 2015-06-01 | 2015-08-26 | 苏州菲尼克斯质检仪器有限公司 | 一种烟密度测试装置 |
| WO2017208104A1 (en) * | 2016-06-03 | 2017-12-07 | International Tobacco Machinery Poland Sp. Z O.O. | Apparatus for identification of physical parameters of rod-like articles of the tobacco industry |
| PL234550B1 (pl) * | 2016-06-03 | 2020-03-31 | Int Tobacco Machinery Poland Spolka Z Ograniczona Odpowiedzialnoscia | Urządzenie do identyfikacji parametrów fizycznych artykułów prętopodobnych przemysłu tytoniowego |
| WO2017208103A1 (en) * | 2016-06-03 | 2017-12-07 | International Tobacco Machinery Poland Sp. Z O.O. | Apparatus for identification of physical parameters of rod-like articles of the tobacco industry |
| EP3548877B1 (de) * | 2016-11-29 | 2024-07-31 | Laitram, L.L.C. | Multi-energie-röntgenabsorptionsbildgebung zur erkennung von fremdkörpern auf einem förderband |
| GB201716550D0 (en) * | 2017-10-10 | 2017-11-22 | British American Tobacco Investments Ltd | Rod inspection method and apparatus |
| CN108896440B (zh) * | 2018-04-11 | 2020-10-27 | 山东中烟工业有限责任公司 | 微波密度仪检测卷烟端部密度失真的修正方法 |
| EP3811792B1 (de) | 2019-10-21 | 2022-07-06 | International Tobacco Machinery Poland Sp. z o.o. | Zuführvorrichtung zur zuführung eines tabakindustriesegments |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3056026A (en) * | 1959-05-11 | 1962-09-25 | Gen Electric | Cigarette density gage |
| DE2941580A1 (de) * | 1979-10-13 | 1981-04-23 | Hauni-Werke Körber & Co KG, 2050 Hamburg | Vorrichtung zum pruefen der dichte eines tabakstranges |
| US4785830A (en) * | 1983-01-22 | 1988-11-22 | Korber Ag | Method and apparatus for monitoring and evaluating the density of a tobacco stream |
| US4805641A (en) | 1985-07-31 | 1989-02-21 | Korber Ag | Method and apparatus for ascertaining the density of wrapped tobacco fillers and the like |
| IT1214545B (it) * | 1985-11-13 | 1990-01-18 | Hauni Werke Koerber & Co Kg | Procedimento e dispositivo per produrre un filone di fibre dell'industria di lavorazione del tabacco. |
-
1996
- 1996-02-15 DE DE19605618A patent/DE19605618A1/de not_active Withdrawn
-
1997
- 1997-01-31 DE DE59707008T patent/DE59707008D1/de not_active Expired - Fee Related
- 1997-01-31 ES ES97101524T patent/ES2173348T3/es not_active Expired - Lifetime
- 1997-01-31 EP EP97101524A patent/EP0790006B1/de not_active Expired - Lifetime
- 1997-02-12 US US08/797,946 patent/US5762075A/en not_active Expired - Fee Related
- 1997-02-14 JP JP9030832A patent/JPH09224632A/ja not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10721959B2 (en) | 2016-06-10 | 2020-07-28 | International Tobacco Machinery Poland Sp. Z O.O. | Apparatus for determination of the position of an insert in rod-like articles of the tobacco industry |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0790006A3 (de) | 1999-06-09 |
| DE19605618A1 (de) | 1997-08-21 |
| ES2173348T3 (es) | 2002-10-16 |
| US5762075A (en) | 1998-06-09 |
| DE59707008D1 (de) | 2002-05-23 |
| EP0790006A2 (de) | 1997-08-20 |
| JPH09224632A (ja) | 1997-09-02 |
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