CN103442602A - Method and device for measuring an internal physical property of a longitudinally axially conveyed rod-haped article of the tobacco-<wbr/> processing industry - Google Patents
Method and device for measuring an internal physical property of a longitudinally axially conveyed rod-haped article of the tobacco-<wbr/> processing industry Download PDFInfo
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- CN103442602A CN103442602A CN2012800156790A CN201280015679A CN103442602A CN 103442602 A CN103442602 A CN 103442602A CN 2012800156790 A CN2012800156790 A CN 2012800156790A CN 201280015679 A CN201280015679 A CN 201280015679A CN 103442602 A CN103442602 A CN 103442602A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/04—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving
- G01B11/043—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving for measuring length
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
- A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
- A24C5/32—Separating, ordering, counting or examining cigarettes; Regulating the feeding of tobacco according to rod or cigarette condition
- A24C5/34—Examining cigarettes or the rod, e.g. for regulating the feeding of tobacco; Removing defective cigarettes
- A24C5/3412—Examining cigarettes or the rod, e.g. for regulating the feeding of tobacco; Removing defective cigarettes by means of light, radiation or electrostatic fields
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/024—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by means of diode-array scanning
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/55—Specular reflectivity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/59—Transmissivity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/952—Inspecting the exterior surface of cylindrical bodies or wires
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- General Health & Medical Sciences (AREA)
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- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Toxicology (AREA)
- Manufacturing Of Cigar And Cigarette Tobacco (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention relates to a method and to a measuring apparatus for spatially resolved measurement of an internal physical property of a rod-shaped article (13, 13') of the tobacco-processing industry conveyed in one direction in the longitudinal axial direction (12). The method according to the invention is characterised by the following method steps: the pneumatic conveying of the rod-shaped article (13, 13') in a tubular feed pipe (11), conveying the rod-shaped article (13, 13') in a longitudinal axial direction through a measuring zone (15) of a measuring device (14), wherein the measuring zone (15) has a longitudinal axial extent that is at least as large as the longitudinal extent (17) of the rod-shaped article (13, 13'), generating an initialisation signal, wherein in accordance with the initialisation signal a spatially resolved measurement of the at least one internal physical property of the rod-shaped article (13, 13') over a longitudinal axial extent (17) of the entire rod-shaped article (13, 13') at a specific point in time is carried out in the measuring zone (15). The measuring apparatus according to the invention comprises a measuring device (14) having a measuring zone (15), which in the conveying direction (12) of the rod-shaped article (13, 13') has a longitudinal extent (16) that is at least as large as the longitudinal extent (17) of the rod-shaped article (13, 13') conveyed or conveyable through the measuring zone (15) in the longitudinal axial direction (12). A device (19) emitting electromagnetic radiation (18) and a sensor (20) receiving electromagnetic radiation (18') are provided, each of which extends lengthwise in the conveying direction (12) of the rod-shaped article (13, 13'), wherein the sensor (20) along the longitudinal extent thereof comprises a plurality of detectors arranged one behind the other, by means of which an image of the rod-shaped article (13, 13') at least completely in the longitudinal extent (17) of the article (13, 13') is recorded or is recordable spatially resolved at a specific point in time.
Description
Technical field
The present invention relates to the method that at least one inner physical characteristic of a kind of rod-shaped products, especially filter stick of carrying for the direction along Y to the tobacco industry is measured.
In addition, the present invention relates to a kind of measurement device that carries out the measurement of locus resolution at least one inner physical characteristic of the rod-shaped products of pneumatically carrying along the direction of Y at transfer pipeline, especially filter stick to the tobacco industry.
Background technology
At rod-shaped products, the especially filter stick of manufacturing the tobacco industry in other words when cigarette with filter tip or tobacco rods, be necessary to determine its characteristic, especially at least one inner physical characteristic, such as the length of each section of rod-shaped products: such as the length of the filtration section in the Multi sectional filter stick; The position of each part of rod-shaped products: such as the pouch that liquid is housed in filter stick especially with respect to the top of described filter stick or the position of end, in order to determine, whether the rod-shaped products of manufacturing has desired characteristic, and namely whether especially measured characteristic is in the margin of tolerance that can be given in advance.The element existed in the inside of rod-shaped products properties of materials in other words is called as inner physical characteristic.Described rod-shaped products generally with lapping such as wrapping up with filter paper or cigarette paper.Be arranged in described filter paper in other words the filter element of lapping inside there is the physical characteristic that is called as inner physical characteristic.Illustrated characteristic on this may relate to, but also may relate to the density with the material of described lapping band parcel.
The rod-shaped products of manufacturing is for for further processing and that is to say along basically parallel with the longitudinal axis of described rod-shaped products direction and carry along the direction of Y, for further processing in the place away from manufactured place, rod-shaped products for manufacturing, difficulty is especially, the mode of differentiating with locus is determined at least one inner physical characteristic of described rod-shaped products in other words along the direction of the Y of described rod-shaped products along its longitudinal extension part, because described rod-shaped products open ground to a certain extent passes from the measured zone of measurement mechanism.Have influence on immediately the locus sensitiveness of measurement in this interference for the motion breadth.
In order to address this is that, also by the applicant on March 30th, 2011 to Deutsche Bundespatent and the patent application (document number: explanation 10 2,011 006 439.7) with title " measurement of differentiating for the locus of at least one physical characteristic of the rod-shaped products of the tobacco industry " submitted to of trademark office, in order to measure described physical characteristic, at first implement time-resolved measurement and then make the VELOCITY DISTRIBUTION in measured zone of this time-resolved measurement and described goods overlapping for the rod-shaped products passed from described measured zone, the measurement result of differentiating for obtaining locus.As an alternative, in this patent application, also explanation, also be provided with other sensor, and this sensor produces the clock pulses for described time-resolved measurement, thereby direct generation has the measuring-signal that differentiate the locus of enough precision.
Know from document EP 1 397 961 B1, measure the physical characteristic of the rod-shaped products of carrying of the tobacco industry in transfer pipeline, wherein by means of the measurement mechanism of optics, measure length and the diameter of described goods.
From document EP 1 557 100 B1, know, measure the rod-shaped products of the Y conveying of the tobacco industry with transmission method, wherein detect the brightness of the light penetrated from described goods, wherein said configurations of light sources is LASER Light Source and the less scope that wherein on the exit side of described goods, detects the brightness range produced by described LASER Light Source in described goods.
Summary of the invention
Task of the present invention is, a kind of method and a kind of device that at least one the inner physical characteristic of rod-shaped products for the direction along Y of the tobacco industry is carried is measured are described, described method and apparatus can be differentiated along the effective locus of the longitudinal extension part of described goods with simple as far as possible constitution realization.
The method that this task is measured by least one inner physical characteristic of a kind of rod-shaped products, especially filter stick of carrying for the direction along Y to the tobacco industry is resolved, and the method has the following methods step:
-pneumatically carry described rod-shaped products in the transfer pipeline of tubulose;
-along the direction of Y, described rod-shaped products is carried to the measured zone through measurement mechanism, wherein said measured zone has the extension of Y, and the extension of this Y is at least the same large with the longitudinal extension part of described rod-shaped products;
-produce initializing signal, implement the measurement of differentiating for the locus of at least one inner physical characteristic of described rod-shaped products in wherein according to described initializing signal, in the scope of the extension of the Y of whole rod-shaped products, when specific, being engraved in described measured zone.
As inner physical characteristic, refer in particular to length and/or the position of the possible different section in described rod-shaped products, length and/or position such as the filtration section in filter stick, object in rod-shaped products is such as the layout such as the end with respect to described rod-shaped products or top and/or the characteristic of the pouch that liquid is housed in other words, and wherein said rod-shaped products is wrapped the physical characteristic that material wrapped up and measured the inside of the material that is arranged in described lapping inside.The longitudinal extension part of described rod-shaped products is equivalent to the length of described rod-shaped products.
According to the present invention, have been found that, if implementing described measurement constantly specific in the scope of the extension of the whole Y of rod-shaped products, can realize a kind of especially effectively measuring method, this measuring method is measured at least one inner physical characteristic of described rod-shaped products soon.At this, specific this concept constantly also comprises very short period, this period must be so short, thus for the specific speed of the direction along Y of described rod-shaped products when measuring the direction along Y produce corresponding desired locus resolution ratio.Therefore, such as with the present invention, for rod-shaped products, especially for the filter stick with 160mm, even realizing the locus resolution ratio of 0.1mm along the direction of Y with the transporting velocity of 16m/s.Described shorter period, the described moment was equivalent to about 5 * 10 thus in other words
-7s to 5 * 10
-5preferably 1 * 10
-6to 2 * 10
-5further preferably 5 * 10
-6to 1 * 10
-5time for exposure.The specific time cycle that time for exposure also refers to the above-described time interval is used in infrared, ultraviolet or X ray scope in the scope of clock cycle in other words and is not the measurement that only electromagnetic radiation in the scope in optics is carried out.
Preferably the measurement for described at least one physical characteristic comprises record and the analysis to carrying out at specific captured image of the moment.Image refers to the record of the electromagnetic radiation in the scope in infrared, optics, ultraviolet or X ray especially within the scope of the invention.Particularly preferably be the scope of described optics.
Preferred described measurement is carried out with transmitted radiation method or reflected radiation method.For the transmitted radiation method, by means of bright as far as possible light source in other words radiation source produce electromagnetic radiation, described electromagnetic radiation is illuminated radiation in other words fully along the direction of the Y of described rod-shaped products and described rod-shaped products, the radiation of passing from described rod-shaped products is by corresponding sensor institute record, and the mode of differentiating with locus along the direction of Y is distributed to the differently intensity of record of described radiation the different absorptivity of the corresponding section of described rod-shaped products along the longitudinal axis of rod-shaped products.For the reflected radiation method, the radiation of being incided on described rod-shaped products is reflexed in described sensor by these goods.This reflection may reside on the surface of the material that is wrapped material parcel of described rod-shaped products.But, entering into the radiation that the material that passes through described rod-shaped products of described goods scatters also can be trapped by described sensor.
In order also more accurately to design described measuring method, can stipulate, only measure the part of described rod-shaped products along the direction of the Xdirection with respect to described rod-shaped products.For this reason, such as can between described rod-shaped products and described sensor, baffle plate being set, wherein said baffle plate separates radiation from the fringe region of the Xdirection of described goods.By this covering, stray light effects is reduced to bottom line.As an alternative, also can use the wave-length coverage outside scattered light or surround lighting of described radiation.As an alternative or additional project, also the light radiation of polarization can be set, the light radiation of described polarization is radiated on described rod-shaped products by means of the Polarization filter between the suitable sensor that is arranged in described rod-shaped products and the described electromagnetic radiation of reception.This measure is also for avoiding as far as possible scattered light, for design more accurately by measuring method like this.
Described sensor itself is such as being the line scanning camera (Zeilenkamera) of arranging along the longitudinal extension part of the throughput direction of described rod-shaped products.It is such as the line scanning camera that can be the model DR-2 * 4k-7 of AWAIBA company.Relate to thus Portugal Madeira (Madeira) 9020-105 Funchal, so-called " high-speed row scanning (Dragster Line Scan) " sensor of the Awaiba Lda Firma company of Madeira Technopolo.
Preferably for the physical characteristic of measuring described inside, make electromagnetic radiation irradiation to described rod-shaped products, and the radiation of passing from described rod-shaped products and/or reflected by described rod-shaped products is recorded in sensor.This sensor is camera capable (Kamerazeile) ccd array (CCD: electronics coupled device (Charged Coupled Device)) in other words preferably.This sensor intactly records the radiation from described goods along the direction of Y.At this, itself can have the extension of the Y larger than described rod-shaped products described sensor.
But preferably use be arranged in described in measuring process the mirror group between the rod-shaped products in measured zone and described sensor, such as collimation lens (Kollimationslinse) or camera lens, for correspondingly described goods being projected to described sensor.Described sensor is equally the high-speed row scanning sensor of model DR-2 * 4k-7 as mentioned.This sensor has 4,096 pixels, has the sweep speed of per second 80,000 width images and can move by the sweep speed of per second 160,000 width images with two-mode method.Also can use other high-speed row scanning sensor, such as the DR-2 * 2k-7 with 2,048 pixels.In this case, described locus resolution ratio is half size of the sensor of front.
Preferably in the radiation of aiming at described rod-shaped products and enter between the radiation of described sensor and be provided with angle [alpha], wherein this angle is between 10 ° and 180 ° especially preferably between 20 ° and 120 ° particularly preferably in the scope between 30 ° and 60 °.Particularly preferably be the angle of 45 °.In this case, enter into the radiation of described rod-shaped products or the radiation that shines above it is arranged obliquely with respect to the radiation that enters into described sensor.This layout realizes the measurement especially accurately for the physical characteristic of described inside, because can obtain larger signal noise ratio like this.
Preferably make to shine the radiation parallelization on described rod-shaped products.Obtain thus described rod-shaped products preferably to the projection on the line scanning camera in other words of described sensor.
Preferred described initializing signal produces by the measurement in the measured zone of described measurement mechanism or the measurement in the upstream of the measured zone of described measurement mechanism.For generation of this situation of described initializing signal, described be arranged in sensor in measurement mechanism for generation of described initializing signal for the measure setup carried out in the measured zone of described measurement mechanism.Described sensor is line scan sensor preferably as mentioned earlier, constantly read data and the detection of described sensor for this reason, when described rod-shaped products is arranged in described measured zone fully, thereby can measure complete goods along the direction of Y in complete longitudinal extension part by the one-shot measurement process.Once this situation, such as the inlet side due in described measured zone namely in upstream first pixel of described line scanning camera in other words first pixel produce the signal suitable with a kind of signal by intensity, no longer include rod-shaped products and hide this pixel these pixels in other words, by the analysis and control device, correspondingly produce described initializing signal and follow at least one physical characteristic of after this in complete longitudinal extension part, measuring described rod-shaped products closely.
As an alternative, can sensor be set in the upstream of described measured zone, namely another sensor, find by means of this sensor, and rod-shaped products is at specific this another sensor that constantly leaves.According to the spacing of the measured zone with respect to described measurement mechanism of this another sensor and the speed when leaving described another sensor of described rod-shaped products, then can produce with calculated time delay described initializing signal, directly along with described rod-shaped products leaves, this situation of described another sensor produces described initializing signal and described control device sends to described measurement mechanism by signal in other words, can in the scope of whole longitudinal extension part, measure the physical characteristic of described rod-shaped products after the calculated time, wherein said rod-shaped products needs the time of calculating for the distance of leaving another sensor in the measured zone of described measurement mechanism.
Preferably for described rod-shaped products, there is this situation of physical characteristic of at least one inside outside the margin of tolerance that can be given in advance, produce the waste product signal and detect described rod-shaped products in the muzzle velocity out time the from measured zone.By means of described muzzle velocity, then can be very targetedly and very accurately in the spacing with can be given in advance in the waste product device in the downstream defective rod-shaped products of dishing out.
In addition, described task by a kind of for the rod-shaped products of pneumatically carrying along the direction of Y at transfer pipeline to the tobacco industry, especially the measurement device that at least one inner physical characteristic of filter stick is carried out the measurement of locus resolution is resolved, this measurement device comprises measurement mechanism, this measurement mechanism is provided with measured zone, described measured zone has longitudinal extension part along the throughput direction of described rod-shaped products, this longitudinal extension part is at least with described that carry along the direction of Y through measured zone or longitudinal extension part rod-shaped products that can carry is the same large, wherein be provided with the device that sends electromagnetic radiation and the sensor of receiving electromagnetic radiation, described device and sensor are correspondingly extending longitudinally along the throughput direction of described rod-shaped products, wherein said sensor comprises a plurality of detectors of arranging successively at its longitudinal extension part, the mode of differentiating with locus in the longitudinal extension part of described goods at least fully by means of described detector is at the specific image that constantly records or can record described rod-shaped products.
A plurality of detectors of arranging successively according to the present invention such as being that the pixel of line scanning camera is such as the in other words conj.or perhaps corresponding CCD of above-mentioned high-speed row scanning sensor is capable or the CCD unit.Described electromagnetic radiation is preferably in the scope or X ray scope in infrared, optics, ultraviolet.Particularly preferably be the scope of optics.But, also obtained extraordinary measurement result in infrared and scope ultraviolet.Therefore, the scope of ultraviolet is suitable for the linear measure longimetry of the section in goods particularly well.
Preferred described sensor is for being used for the initializing signal of document image in specific generation constantly.In this case, can realize measurement device structure with low cost.If be provided with extraly pulse transducer, this pulse transducer produces the initializing signal for document image constantly specific, that just fully can be by described measurement category the physical characteristic for detection of described rod-shaped products.
Preferred described pulse transducer comprises photo-coupler (Lichtschranke) and especially preferably includes control device, and this control device is processed the signal of described photo-coupler, for generation of initializing signal.Described photo-coupler preferred arrangements is in the upstream of the measured zone of described measurement mechanism.
In addition, preferably the provided upstream in the measured zone of described measurement mechanism is equipped with a kind of device, and this device is imposed on described rod-shaped products by constant transporting velocity.So form this device, make the every rod-shaped products passed from this device there is identical transporting velocity out the time from this device.This device a kind of device preferably, at first this device makes the rod-shaped products braking entered, make subsequently its accelerate to especially can be given in advance speed.The described rod-shaped products of pneumatically carrying in pipeline is provided with defined spacing and defined transporting velocity to each other thus.Described braking function such as by brake roller to obtain and described acceleration function by accelerating roller to obtaining.
If preferably in the front of described sensor, be provided with baffle plate, this baffle plate only allow radiation a part in other words local intercepting section from described rod-shaped products, pass through, wherein especially cover the fringe region of the Xdirection of described rod-shaped products, that just can recently be measured with good signal noise.Preferably, as additional project or the replacement scheme of described baffle plate, be provided with the lighting device with polarised light and be provided with Polarization filter between described rod-shaped products and described sensor.Also can get rid of as far as possible stray light effects thus.
The accompanying drawing explanation
Below in the situation that do not limit general inventive concept, by means of embodiment, with reference to accompanying drawing, the present invention will be described, wherein about all in explanatory note, explain in detail by details of the present invention please clearly with reference to accompanying drawing.Accompanying drawing illustrates:
Fig. 1 is the schematic side view by measurement device of the present invention;
Fig. 2 is the schematic diagram by the main parts of measurement mechanism of the present invention;
Fig. 3 is the schematic diagram of different light path;
Fig. 4 is the schematic diagram of the measurement result of the physical characteristic measured on the Multi sectional filter tip by Fig. 5 a;
Fig. 5 a is the filter-tip schematic diagram of Multi sectional;
Fig. 5 b only uses and the schematic diagram of measuring instruments different in Fig. 4 by means of another measurement result of the Multi sectional filter tip acquisition of Fig. 5 a; And
Fig. 6 is the schematic diagram in the baffle plate of filter stick front.
In the following drawings, corresponding identical or similar element and/or corresponding parts mean with identical Reference numeral, thereby do not do the introduction of corresponding repetition.
The specific embodiment
Fig. 1 schematically shows the structure by measurement device 10 of the present invention.Along the throughput direction 12 of Y, that is to say along the direction of arranging abreast with filter stick 13,13 ' longitudinal axis in transfer pipeline 11, described filter stick 13,13 ' is flowed to conveying device 28 and there at first the brake roller by comprising two brake rollers 29 to braking.Described filter stick 13 ' then arrives and comprises that two acceleration rollers that accelerate rollers 30 are to locating along throughput direction 12, for accelerating to uniform speed or such as to described filter stick 13 ', giving identical speed.Described conveying device 28 has to the filter stick that may abut one another 13,13 ' from described pipeline 11 and relative to each other is equipped with certain spacing and it is sent to the function in described measurement mechanism 14 with identical as far as possible speed.Be provided with the unshowned passage for the delivery filter stick in described conveying device 28.Correspondingly in described measurement mechanism 14, be provided with and there is at least one measurement opening guide groove of at least one measurement window in other words.
Be provided with measured zone 15 in described measurement mechanism 14, this measured zone has the longitudinal extension part larger than the longitudinal extension part of described filter stick 13 17 16.In the scope of accompanying drawing explanation, as the example for rod-shaped products, use filter stick such as the Multi sectional filter stick, wherein the present invention is not limited to the measurement for the physical characteristic of filter stick, but especially also can be for cigarette or tobacco rods.Goods to be measured are arranged, or are filter stick, cigarette, or be tobacco rods, with lapping such as paper wraps up.Described measurement mechanism can be measured inner physical characteristic, such as the properties of materials that is arranged in described lapping inside.
Described measurement mechanism 14 has light source, and this light source is configured to LED capable 19 in this case.Described light source in other words LED capable 19 in measured zone 15, described filter stick 13 being carried out to even and strong illumination.Over there, that is to say the opposite side at described filter stick 13 in Fig. 1, as sensor setting, have camera capable 20, this camera is capable also has the longitudinal extension part larger than the longitudinal extension part of described filter stick 13 17 in this embodiment.Also can replace the capable CCD in other words of camera so extending longitudinally capable, and it is capable that the shorter capable CCD in other words of camera is set, if from described light source in other words LED capable light beam out 18 by collimation lens 27 in other words the camera lens pack to described camera capable 20, thereby by described measured zone in other words filter stick 13 project to described camera capable on.
The present invention stipulates now, in the described moment or at described filter stick 13, is arranged in moment in described measured zone 15 image taking to described filter stick 13 fully.The recording image undertaken by the moment can be given in advance thus, can carry out along the measurement of the director space position resolution of Y at least one inner physical characteristic of described filter stick 13.Such as the length that can be very easy to thus measure the filtration section in Multi sectional filter tip 13 or such as the position that is arranged in the object in filter stick 13, described object is such as being the pouch that liquid is housed.
In a kind of moment, measured, this comes given in advance by the initializing signal for measuring constantly.This initializing signal can produce in the following manner, in the first pixel described in the entry zone of described measured zone or a plurality of the first pixel, detect, described filter stick is arranged in described measured zone fully, and the picture that so then just by unshowned analysis and control device, obtains described goods is image in other words.
As an alternative, can produce initializing signal by means of the photo-coupler 21 such as thering is light emitting diode or incandescent lamp and photelectric receiver.Corresponding filter stick 13 leaves described acceleration roller 30 with known speed in other words that can be given in advance, can be poor 22 computing times by described control device by described known speed in other words and the known spacing with respect to measured zone 15 of moment out from the zone of action of photo-coupler 21 of described filter stick 13 and described photo-coupler 21 that can be given in advance at this, need the described time difference at this, so that described filter stick 13 arrives in described measured zone 15, and produce initializing signal by means of described control device 22, this initializing signal impels by described camera is capable and carrys out document image.Being connected in Fig. 1 of electricity illustrates by a dotted line, but in order to obtain the cross that better n-lustrative is arranged in circle, should be wherein tie point.
Fig. 2 schematically shows the main parts by measurement mechanism of the present invention, and this measurement mechanism has that LED is capable 19, camera capable 20 and the collimation lens 27 between measured zone 15 and camera capable 20.Light beam 18 use lens 27 packs to described camera capable 20, thereby the filter stick 13 in measured zone 15 is projected on described camera capable 20.
Fig. 3 shows and aims at inside described filter stick or the possible flexible program of the arrangement of the radiation with respect to outgoing of top radiation.The arrow that points to described filter stick 13 is light beam 18, and described light beam leaves corresponding light source such as LED capable 19 and light beam 18 ' are representing the light beam that arrives sensor from described filter stick 13s towards the direction of filter stick 13.
In transmission method, between the light beam 18 ' of the light beam 18 of incident and outgoing, be provided with the angle [alpha] of about 180 °.The filter- tip filtration section 31,32,33 of measured Multi sectional as arranged and at first absorbing from left to right less light in Fig. 5 a, then absorb more light, then absorb less light, then absorb more light and finally absorb less light, the filter-tip projection of measured Multi sectional in other words measuring-signal shown in Fig. 5 b.Fig. 5 b correspondingly shows measured amplitude A about the direction along Y apart from s.Representing thus the measurement of the degree of absorption of light beam at the signal shown in Fig. 5 b.Described filtration section 31 and 33 consists of and the few light beam of the described filtration section 32 of absorptance identical material.Be stretched over boundary between should schematically illustrated corresponding filtration section of the dotted line of Fig. 5 b always and roughly be equivalent to half height of signal difference from Fig. 5 a.
For other the angle [alpha] of pressing Fig. 3, can produce other measuring-signal.Therefore can expect measuring-signal schematically illustrated in Fig. 4 such as the angle [alpha] for 45 °.Here also about distance s, show the amplitude A of measured signal.Also relate to a kind of measuring-signal recorded at this on the Multi sectional filter tip by Fig. 5 a.Here the measuring radiation used is to have the light that is squeezed into the wavelength in described filtering material.Not only measure thus described radiation 18 in the filter-tip lip-deep reflection of Multi sectional, and measure and to arrive the radiation of dispersing described sensor from the inside of described filter tip 13.Thus, demonstrate the different amplitude of measuring radiation on the position of described filtration section 31 and 33.With respect to the filtration section 31 in outside, in the zone of described filtration section 33, there is more divergent radiation to enter into described sensor.
In order to improve measuring-signal, be provided with baffle plate 24 according to Fig. 6, this baffle plate has limited measured zone along the direction of filter-tip Xdirection.Described baffle plate is parallel to described longitudinal axis 34 and arranges.For brevity, described longitudinal axis 34 has been shown in Fig. 2 in filter tip 13.Hidden from view thus the fringe region of the Xdirection that is provided with Reference numeral 25 and 25 ' of described filter stick 13.Only measure thus active filter tip measured zone, thereby avoided the divergent radiation from fringe region.The interior measuring radiation of wave-length coverage that also can replace optics, and imagination is used in infrared scope or the measuring radiation in the scope of ultraviolet.Also can consider the measuring radiation in the X ray scope.Described measuring radiation should be complementary with the material of described rod-shaped products.
By the present invention, a kind of effective method and a kind of accurate measurement device are described, by means of described method and measurement device, can on the Multi sectional filter tip of motion in a longitudinal direction, measure point-device filtration section profile and length.Especially also can effectively measure and there is the filtration section of carbon granule such as the active carbon pellet.In addition, also can very effectively find, whether lack the filtration section.The filter stick of taking the tobacco industry by the line scanning camera in whole length is rod-shaped products in other words.Due to the different scattering in other words of the different optical density (OD) of the filter-tip different material of described filter stick especially Multi sectional, can fine and accurately distinguish these materials.Described measurement device and described method can by for described measuring-signal the analysis of measured image in other words determine the profile of the filter-tip optics of described Multi sectional and also can infer the length of each section and infer extraly in other words in addition whole filter-tip length with further analysis.Obtain thus a kind of very effective and easy measuring method a kind of very effective and easy measurement device in other words.
All features of mentioning, also comprise that the feature only learnt from accompanying drawing and single disclosed feature in the combination of the feature with other are all individually and be considered as important for purposes of the invention feature in combination.By embodiments of the present invention, can realize by the combination of each feature or a plurality of features.
Reference numerals list:
10 measurement devices
11 transfer pipelines
12 throughput directions
13,13 ' filter stick
14 measurement mechanisms
15 measured zone
The longitudinal extension part of 16 measured zone
17 filter-tip longitudinal extension parts
18 light beams
18 ' light beam
19 LED are capable
20 cameras are capable
21 photo-couplers
22 control device
23 brake apparatus and accelerator
24 baffle plates
25, the fringe region of 25 ' Xdirection
The filter tip measured zone of 26 activity
27 collimation lenses
28 conveying devices
29 brake rollers
30 accelerate roller
31 filter section
32 filter section
33 filter section
34 longitudinal axis
The α angle
Claims (14)
1. method, at least one inner physical characteristic of rod-shaped products (13,13 '), especially filter stick that it is carried for the direction along Y to the tobacco industry (12) is measured, and described method has the following methods step:
-pneumatically carry described rod-shaped products (13,13 ') in the transfer pipeline (11) of tubulose;
-carry the measured zone (15) of described rod-shaped products (13,13 ') through measurement mechanism (14) along the direction of Y, wherein said measured zone (15) has the extension of Y, and the extension of described Y is at least the same large with the described rod-shaped products longitudinal extension part of (13,13 ') (17);
-produce initializing signal, wherein according to initializing signal, implement the measurement that the locus of at least one inner physical characteristic of described rod-shaped products (13,13 ') is differentiated in being engraved in described measured zone (15) when specific the scope of the extension (17) of the Y of whole rod-shaped products (13,13 ') is inherent.
2. by method claimed in claim 1, it is characterized in that, the measurement of the physical characteristic of at least one inside is comprised in specific captured image carries out constantly record and analysis.
3. by the described method of claim 1 or 2, it is characterized in that, described measurement is carried out with transmission method or method for reflection.
4. by the described method of any one in claim 1 to 3, it is characterized in that, for the physical characteristic of measuring described inside, make electromagnetic radiation (18) shine described rod-shaped products (13,13 ') upper, and be recorded in sensor (20) through described rod-shaped products (13,13 ') and/or radiation (18 ') that reflected by described rod-shaped products (13,13 ').
5. by method claimed in claim 4, it is characterized in that, aim at the described rod-shaped products radiation of (13,13 ') (18) and enter into angle (α) between the radiation (18 ') of described sensor (20) between 10 ° and 180 °, especially between 20 ° and 120 °, especially between 30 ° and 60 °.
6. by the described method of claim 4 or 5, it is characterized in that, parallelization shines the radiation (18) on described rod-shaped products (13,13 ').
7. by the described method of any one in claim 1 to 6, it is characterized in that, described initializing signal produces by the measurement in the measured zone in described measurement mechanism (14) (15) or the measurement in the upstream of the measured zone (15) of described measurement mechanism (14).
8. by the described method of any one in claim 1 to 7, it is characterized in that, this situation of physical characteristic that there is at least one inside outside the margin of tolerance that can be given in advance for described rod-shaped products (13,13 '), produce the waste product signal and try to achieve described rod-shaped products (13,13 ') in the muzzle velocity out time the from measured zone (15).
9. measurement device (10), it is for the rod-shaped products (13 of pneumatically carrying along the direction of Y at transfer pipeline (11) to the tobacco industry, 13 '), especially at least one inner physical characteristic of filter stick is carried out the measurement of locus resolution, described measurement device comprises measurement mechanism (14), described measurement mechanism has measured zone (15), described measured zone is along described rod-shaped products (13, 13 ') throughput direction (12) has longitudinal extension part (16), described longitudinal extension part (16) at least and along the direction (12) of Y is carried or can conveying rod-shaped goods (13, 13 ') longitudinal extension part (17) through described measured zone (15) is equally large, wherein be provided with the device (19) that sends electromagnetic radiation (18) and the sensor (20) of receiving electromagnetic radiation (18 '), described device and sensor are along described rod-shaped products (13, 13 ') throughput direction (12) is correspondingly extending longitudinally, wherein said sensor (20) comprises a plurality of detectors of arranging successively at its longitudinal extension part, by means of described detector at least fully at described goods (13, 13 ') mode of differentiating with locus in longitudinal extension part (17) is at specific record constantly or can record described rod-shaped products (13, 13 ') image.
10. by measurement device claimed in claim 9, it is characterized in that, described sensor (20) is for producing in the specific moment initializing signal that document image is used.
11., by measurement device claimed in claim 9, it is characterized in that, be provided with pulse transducer (21,22), described pulse transducer is at the specific initializing signal that is used for document image that constantly produces.
12. by the described measurement device of claim 11, it is characterized in that, described pulse transducer (21,22) comprises photo-coupler (21).
13. by the described measurement device of any one in claim 9 to 12, it is characterized in that, provided upstream in the measured zone (15) of described measurement mechanism (14) is equipped with device (23), and described device is imposed on described rod-shaped products (13,13 ') by constant transporting velocity.
14. by the described measurement device of any one in claim 9 to 13, it is characterized in that, be provided with baffle plate (24) in the front of described sensor (20), described baffle plate only makes the intercepting section of the part of radiation (18) pass through from described rod-shaped products (13,13 '), wherein especially covers the fringe region (25,25 ') of the Xdirection of described rod-shaped products (13,13 ').
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011006449A DE102011006449A1 (en) | 2011-03-30 | 2011-03-30 | A method and apparatus for measuring a physical property of a longitudinally-extruded rod-shaped article of the tobacco processing industry |
| DE102011006449.4 | 2011-03-30 | ||
| PCT/EP2012/001209 WO2012130402A1 (en) | 2011-03-30 | 2012-03-19 | Method and device for measuring an internal physical property of a longitudinally axially conveyed rod-shaped article of the tobacco- processing industry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103442602A true CN103442602A (en) | 2013-12-11 |
Family
ID=45928806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012800156790A Pending CN103442602A (en) | 2011-03-30 | 2012-03-19 | Method and device for measuring an internal physical property of a longitudinally axially conveyed rod-haped article of the tobacco-<wbr/> processing industry |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2690977A1 (en) |
| CN (1) | CN103442602A (en) |
| DE (1) | DE102011006449A1 (en) |
| WO (1) | WO2012130402A1 (en) |
Cited By (6)
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|---|---|---|---|---|
| CN104464077A (en) * | 2014-11-12 | 2015-03-25 | 迪堡金融设备有限公司 | Identification method and device for paper currency prefix code |
| CN109310141A (en) * | 2016-06-10 | 2019-02-05 | 国际烟草机械波兰私人控股有限责任公司 | Equipment for determining position of the insert in the bar-type article of tobacco |
| CN110353302A (en) * | 2018-04-09 | 2019-10-22 | 虹霓机械制造有限公司 | The device and method that end face for the tobacco product to stick is checked |
| CN111182800A (en) * | 2017-10-10 | 2020-05-19 | 英美烟草(投资)有限公司 | Rod inspection method and apparatus |
| CN111436643A (en) * | 2019-01-16 | 2020-07-24 | 虹霓机械制造有限公司 | Method for operating a machine of the tobacco processing industry and corresponding machine |
| CN112384087A (en) * | 2018-07-09 | 2021-02-19 | Mprd有限公司 | Device for analysing rod-shaped smoking articles |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013203140A1 (en) | 2013-02-26 | 2014-08-28 | Hauni Maschinenbau Ag | Measuring method and measuring arrangement for detecting the position of an object in a longitudinally axially conveyed filter strand, and machine of the tobacco processing industry |
| PL227616B1 (en) | 2014-09-12 | 2018-01-31 | International Tobacco Machinery Poland Spólka Z Ograniczona Odpowiedzialnoscia | Measuring devices and method for measuring rod-like multi-segment articles of tobacco industry |
| WO2017212358A1 (en) * | 2016-06-10 | 2017-12-14 | 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 |
| DE102016122465A1 (en) | 2016-11-22 | 2018-05-24 | Hauni Maschinenbau Gmbh | Device for testing, processing and / or conveying articles of the tobacco processing industry |
| EP3914101A1 (en) * | 2019-01-24 | 2021-12-01 | Hauni Maschinenbau GmbH | Quality control of rod-shaped products of the tobacco processing industry |
| CN112484670A (en) * | 2020-11-09 | 2021-03-12 | 河南中烟工业有限责任公司 | Intelligent detection method for straightness of cigarette filter stick |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104464077A (en) * | 2014-11-12 | 2015-03-25 | 迪堡金融设备有限公司 | Identification method and device for paper currency prefix code |
| CN109310141A (en) * | 2016-06-10 | 2019-02-05 | 国际烟草机械波兰私人控股有限责任公司 | Equipment for determining position of the insert in the bar-type article of tobacco |
| CN111182800A (en) * | 2017-10-10 | 2020-05-19 | 英美烟草(投资)有限公司 | Rod inspection method and apparatus |
| CN110353302A (en) * | 2018-04-09 | 2019-10-22 | 虹霓机械制造有限公司 | The device and method that end face for the tobacco product to stick is checked |
| CN110353302B (en) * | 2018-04-09 | 2022-09-09 | 虹霓机械制造有限公司 | Device and method for inspecting end faces of rod-shaped smoking articles |
| CN112384087A (en) * | 2018-07-09 | 2021-02-19 | Mprd有限公司 | Device for analysing rod-shaped smoking articles |
| CN111436643A (en) * | 2019-01-16 | 2020-07-24 | 虹霓机械制造有限公司 | Method for operating a machine of the tobacco processing industry and corresponding machine |
| CN111436643B (en) * | 2019-01-16 | 2023-03-17 | 柯尔柏技术有限责任公司 | Method for operating a machine of the tobacco processing industry and corresponding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102011006449A1 (en) | 2012-10-04 |
| WO2012130402A1 (en) | 2012-10-04 |
| EP2690977A1 (en) | 2014-02-05 |
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Application publication date: 20131211 |