CN108685161A - The method and system of the source orbit of product for determining the tobacco industry, Cigarette inspection station - Google Patents
The method and system of the source orbit of product for determining the tobacco industry, Cigarette inspection station Download PDFInfo
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- CN108685161A CN108685161A CN201810325641.2A CN201810325641A CN108685161A CN 108685161 A CN108685161 A CN 108685161A CN 201810325641 A CN201810325641 A CN 201810325641A CN 108685161 A CN108685161 A CN 108685161A
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- seam
- original data
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- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 119
- 241000208125 Nicotiana Species 0.000 title claims abstract description 35
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000007689 inspection Methods 0.000 title claims abstract description 13
- 238000001514 detection method Methods 0.000 claims abstract description 36
- 230000003287 optical effect Effects 0.000 claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 238000012545 processing Methods 0.000 claims description 25
- 238000001914 filtration Methods 0.000 claims description 12
- 238000004806 packaging method and process Methods 0.000 claims description 8
- 208000036347 rifampicin-resistant tuberculosis Diseases 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000007665 sagging Methods 0.000 description 3
- 238000009499 grossing Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000002304 perfume Substances 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 238000003908 quality control method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
- 235000013599 spices Nutrition 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Manufacturing Of Cigar And Cigarette Tobacco (AREA)
Abstract
The present invention relates to the method and system of the source orbit of the product for determining the tobacco industry, Cigarette inspection stations.The single length cigarette with filter tip produced in the cigarette manufacturing machine with multiple tracks is accepted in slewing and is rotated around the rotation axis parallel with the longitudinal axis of cigarette, wherein, during the rotation of the cigarette in being maintained at slewing, the seam of wrapping paper and tipping paper to cigarette carries out optical detection, and the source orbit of cigarette is determined according to the result of optical detection.According to the present invention, optical detection includes the range measurement executed using at least one first distance-measuring device and at least one second distance measuring device, at least one first distance-measuring device is positioned and oriented to generate at least one first original data signal of the distance indicated to the wrapping paper of cigarette, and at least one second distance measuring device is positioned and oriented to generate at least one second original data signal of the distance indicated to the tipping paper of cigarette.
Description
Technical field
The present invention relates to the method and systems and Cigarette inspection of the source orbit of the product for determining the tobacco industry
Unit.The single length cigarette with filter tip produced in the cigarette manufacturing machine with multiple tracks is accepted in slewing
And rotated around the rotation axis parallel with the longitudinal axis of cigarette, wherein the rotation of the cigarette in being maintained at slewing
Between refunding, the seam of wrapping paper and tipping paper to cigarette carries out optical detection, wherein is determined according to the result of optical detection
The source orbit of cigarette.
Background technology
With multiple tracks(Such as two-orbit)Cigarette manufacturing machine in manufacture cigarette with filter tip be known in the art
's.Such machine can have more in preparing the unit of tobacco rod for no reason and in the production for no reason unit of filter stick
A track.For no reason tobacco rod is each packaged in wrapping paper band for no reason, and wrapping paper band is wrapped in the cigarette in tobacco rod for no reason for this
Careless surrounding and the adhesive closure by being applied, the adhesive is by wrapping paper with its own in the seam for constituting wrapping paper band
Overlapping region in connect.Filter stick can equally be packaged in tip paper band or can not be packaged in wherein.
After tobacco rod for no reason and filter stick cutting, they are being taken to tobacco rod and filter stick to filtering together
Mouth is hinged in unit, to form the common mass stream of cigarette.In typical configuration, Double Length filter stick is inserted in
Between two single length tobacco rods.Tipping paper with the end sections for being applied with adhesive is wrapped in around filter stick,
And it is Chong Die with the adjacent part of two adjacent tobacco rods simultaneously, to provide stable company between filter stick and tobacco rod
It connects.To complete to pack, the stick portion of tipping paper is applied to the opposed end of tipping paper.In the next step, it is cut in centre
Central Double Length filter stick is cut, to form two single length cigarettes with filter tip.
Frequently, quality control is carried out, can be used for detecting the problems in the different units of cigarette manufacturing machine, the problem
May be specific to its single track.Method of quality control is to form quality stream and object as a kind of.These samples are fragrant
Cigarette is subjected to further testing.In order to which result is attributed to the fact that the different tracks from not commensurate, it is necessary to determine tested sample
The source orbit of product cigarette.
2 183 985 B1 of EP are disclosed for determining source orbit in the cigarette manufacturing machine with multiple tracks
Technology, wherein sample cigarette are received by the rotating member for making cigarette be rotated relative to detection means, the detection means
Be configured to detect the radiation from cigarette and generate the signal for the radiation for indicating detected, and handle component by including,
The processing component is arranged to handle the signal generated by detection means to identify the shade projected by tipping paper seam and by wrapping
The shade of paper seam projection is filled, and wherein, which is configured to determine the week of the shade projected by tipping paper seam
Difference between the circumferential position of the shade projected to position and by wrapping paper seam, and dependent on this generation instruction cigarette
The signal of source orbit.The technology disclosed in 2 183 985 B1 of EP based on the fact that:Seam will from side with oblique angle
Cast shadow when being irradiated by light.Signal processing includes the sagging amplitude detected in the signal of the light detected by detection means
And position, and sagging size is compared with predetermined threshold.In addition, being detected pair using timer during cigarette rotates
There is the sagging time difference in wrapping paper seam and tipping paper seam, then carries out the predetermined threshold of the time difference and time difference
Compare.
Invention content
It is an object of the invention to improve the technology, especially in terms of the reliability of detection seam.
The purpose is realized by a kind of method of the source orbit for the product being used to determine the tobacco industry, wherein
The single length cigarette with filter tip produced in cigarette manufacturing machine with multiple tracks is by slewing(Especially revotating card
Disk)It receives and surrounds the rotation axis rotation parallel with the longitudinal axis of cigarette, wherein the perfume (or spice) in being maintained at slewing
During the rotation of cigarette, the seam of wrapping paper and tipping paper to cigarette carries out optical detection, wherein according to the result of optical detection
To determine the source orbit of cigarette, wherein optical detection includes using at least one first distance-measuring device and at least one
Second distance measuring device execute range measurement, wherein at least one first distance-measuring device be positioned and oriented with
Just generate indicate to cigarette wrapping paper distance at least one first original data signal, and this at least one second away from
It is positioned and oriented from measuring device to generate at least one second initial data indicated to a distance from the tipping paper of cigarette
Signal.
Although technology described in 2 183 985 B1 of EP can be by improving lighting condition come perfect, including uses tool
Have small light-emitting area the light source clearly limited, select detection light appropriate wavelength and improve signal processing, but its by with
The influence of the lower fact:Paper seam may be limited poorly, and the shade therefore projected by seam may be in width and depth
Change on degree.On the contrary, the present invention relies on optical distance measurement rather than shadow Detection.Using with the precision in micron range
Optical distance measurement device, and target area is actually dotted, and in shadow Detection technology, the visual field to be checked
May have several millimeters long and wide.Therefore, optical distance measurement provides excellent resolution ratio, and therefore provides detection wrapping paper and connect
Fill the higher reliability of the seam of paper.
When rotating cigarette, paper seam will generate proportional to the thickness of wrapping paper or tipping paper in distance measurement signals
Ladder or spike, range can between 0.05 to 0.25 mm, this depend on made in the cigarette of each particular brand
The type of wrapping paper or tipping paper.Such ladder is more much bigger than the resolution ratio of modern distance measuring equipment, and therefore
It can be with good signal-to-noise ratio(SNR)It easily detects.The a type of range measurement that can be used for implementing the method for the present invention is set
Standby is laser telemetry equipment.
Preferably, using high frequency pass filter at least one first original data signal and/or at least one second original
Beginning data-signal is filtered.The measure will filter out most of deviation of cigarette and ideal cylindrical form, but will be produced by paper seam
Raw sharp spike or step function is left in place.In addition, after being filtered using high frequency pass filter, preferably
Ground carries out at least one the first filtered original data signal and/or at least one the second filtered original data signal
Noise reduction, wherein especially median filter is used to carry out noise reduction.Median filter passes through by the intermediate value in the window of several data points
The residual noise in signal is eliminated or reduces, to removing extreme noise event.Depending on median filter window relative to
By the part for the signal that paper seam influences(It is also referred to as paper seam signal)Width relative size, the paper in signal connects
Seam signal exists after being subjected to median filter or median filter is modified so that higher or lower than predetermined threshold
Leaving of being not filtered out of signal.
In embodiment, the signal amplitude especially by detection more than threshold range to statistically significant degree comes
Seam signal is detected in original data signal or filtered original data signal(Especially indicate the peak or ladder letter of paper seam
Number), the threshold range is selected or is calculated as so that the random fluctuation of filtered original data signal is maintained at threshold value model
In enclosing.Using this method, it is reliably achieved the statistically significant result of scene detection.In a further embodiment, seam
Packaging direction is determined by the symbol of the amplitude of seam signal.Depending on packing direction, indicating paper seam and therefore constituting paper seam
The peak or step function of signal will carry plus sign or minus symbol occurs, to indicate on the wrapping paper of cigarette or the surface of tipping paper
The distance between distance measuring equipment decreases or increases.If wrapping paper or tipping paper with rotary chuck in cigarette
Direction of rotation is packed on identical direction, then when reaching scene, distance will increase, and if paper is in the rotation with cigarette
Side in the opposite direction on packed, then distance will reduce suddenly.
In a further embodiment, between the determining position in wrapping paper seam and tipping paper seam on the circumference of cigarette
Offset, indicate source orbit.This can be by recording sheet seam signal relative to tipping paper on the wrapper time, with
And it is carried out corresponding to the relative position of the position on the circumference of cigarette in data-signal.In the detection of the offset of execution position
When, the first distance-measuring device and second distance measuring device must relative to offset of the circumference in terms of its angular relationship of cigarette
It must be corrected.For example, due to the free space in machine or cigarette inspection unit, it may be necessary to two distances be made to survey
Amount device offsets relative to each other the angle of 90 ° or 180 ° or still different.
The purpose of the present invention also realized by a kind of system for determining the source orbit of the product of the tobacco industry,
The system includes:Slewing, especially rotary chuck are used to be received in the cigarette manufacturing machine with multiple tracks raw
The single length cigarette with filter tip of production simultaneously makes it surround the rotation of the rotation axis for the longitudinal axis for being parallel to cigarette;Optical detection structure
Part is used to carry out optical detection to the wrapping paper of cigarette and the seam of tipping paper;Controller and signal processing component, are used for
Handle optical detection component original data signal, wherein optical detection component include at least one first distance-measuring device and
At least one second distance measuring device, wherein at least one first distance-measuring device is positioned and oriented to generate
Indicate at least one first original data signal of the distance of the wrapping paper of cigarette, and at least one second distance measures
Device is positioned and oriented to generate at least one second original data signal of the distance indicated to the tipping paper of cigarette.It is excellent
Selection of land, controller and signal processing component are configured as the method for executing aforementioned present invention.
Therefore, system of the invention includes characteristic identical with the method for aforementioned present invention, feature and advantage.Controller and
Signal processing component can be in an equipment(Such as programmable calculator)Middle realization, or in order to transmit order and data and
It is realized in several distinct devices of interconnection.
In embodiment, at least one first distance-measuring device and/or at least one second distance measuring device include
One or more laser telemetry units, to provide excellent resolution ratio and reliability.In a further embodiment, signal processing
Unit is configured to using high frequency pass filter at least one first original data signal and/or at least one second original number
It is believed that number be filtered, and especially at least one first original data signal through high-pass filtering and/or at least one
Second original data signal carries out noise reduction, especially with median filter.
In a further embodiment, signal processing unit is configured to particularly by detection more than threshold range to statistically
The signal amplitude of significant degree detects seam signal in original data signal or filtered original data signal, especially
It is the peak or step function for indicating paper seam, the threshold range is selected or be calculated as the original data signal so that filtered
Random fluctuation be maintained in threshold range.
In other advantageous embodiment, signal processing unit is configured as the symbol of the amplitude by detecting seam signal
To detect the packaging direction of seam and/or be configured as detection wrapping paper seam and position of the tipping paper seam on the circumference of cigarette
Offset between setting, the offset indicate source orbit.
The purpose of the present invention realizes that the cigarette inspection unit includes previously described use by cigarette inspection unit in addition
In the system of the present invention of the source orbit for the product for determining the tobacco industry.Thus cigarette inspection unit is embodied with the present invention's
System characteristic identical with the method for the present invention, feature and advantage.
From description according to an embodiment of the invention and claim and included attached drawing, other characteristics of the invention
It will become obvious.The combination of individual character or several characteristics can be realized according to an embodiment of the invention.
Description of the drawings
Do not limit the present invention in the case of being generally intended to, the present invention is retouched below based on exemplary embodiment
It states, wherein the disclosure for all details according to the present invention not being explained in greater detail herein is clearly joined
Examine attached drawing.Attached drawing is shown:
Fig. 1 is schematically illustrated from not co-orbital Double Length cigarette,
Wrapping paper seams and tipping paper seam of the Fig. 2 on the cigarette of separate sources track schematically illustrate,
The embodiment of Fig. 3 the system according to the present invention schematically illustrates,
Fig. 4 measuring signals from system shown in Fig. 3 in each stage of signal processing, and
Various signals processed distance signals of the Fig. 5 from simple cigarette.
In the accompanying drawings, the element of same or similar type or corresponding component are provided with identical reference numeral, with
Object needs are prevented to be reintroduced into.
Specific implementation mode
Fig. 1 shows schematically illustrating for the not co-orbital Double Length cigarette 10 from two-orbit machine.The two rails
Road is named as track A(TA)With track B(TB).Double Length cigarette 10 by intermediate Double Length filter stick 14 and
Single length tobacco rod 12 in its both sides is constituted, and single length tobacco rod 12 is by being packaged in filter stick 14 and tobacco rod 12
Adjacent part around tipping paper be connected to filter stick 14.Two Double Length cigarettes 10 from track TA and TB are retouched
The intersecting axle on conveying direction 11 is depicted as to convey to ground.Double Length cigarette 10 is cut to form then along cutting planes 16
Two single length cigarettes 24 are each orientated axially opposite each other.This two parts is named as " preceding stick "(FR)" after
Stick "(RR).Therefore, track will combines FR-TA, RR-TA, FR-TB and RR- by four single length cigarettes of cutting gained
TB。
In further subsequent step, it is identical with other cigarettes fixed to present that preceding stick or rear stick are redirected
To.
Fig. 2 shows on the cigarette of separate sources track wrapping paper seam and tipping paper seam schematically illustrate,
In four single length cigarettes 24 be numbered as 1 to 4 and corresponding to Fig. 1 FR-TA, RR-TA, FR-TB and RR-TB stick.Fig. 2's
Separate section depicts single length cigarette 24 and wrapping paper seam 26 and its tipping paper seam 28, wherein by each
Seam crossing using solid line and indicates to be overlapped for the hide edges of the lower layer of paper for the edge on the upper layer of paper using dotted line
Direction.In addition, it can be seen that existing between the wrapping paper seam 26 and tipping paper seam 28 of each single length cigarette 24
Offset, this can also indicate that the source orbit of cigarette 24.
Above the middle section of Fig. 2, the end sections of the tobacco rod of single length cigarette 24 are shown, which illustrates suitable
Hour hands or packaging direction counterclockwise.Below the separate section of Fig. 2, the filtering mouth of tobacco rod and cigarette 24 is also illustrated
/ transition portion, indicate tipping paper packaging direction.The packaging direction of four cigarettes 24 can summarize in the following table:
| Number | Wrapping paper is overlapped direction | Tipping paper is overlapped direction |
| 1 | + | - |
| 2 | - | + |
| 3 | - | - |
| 4 | + | + |
This shows to be enough to identify up to four cigarettes by packing the achievable combination in direction.
When in view of seam alignment or seam offset, even more tracks can be expanded to, as shown in the table:
| Number | Seam is aligned | Wrapping paper is overlapped direction | Tipping paper is overlapped direction |
| 1 | 0 | + | + |
| 2 | 0 | + | - |
| 3 | 0 | - | + |
| 4 | 0 | - | - |
| 5 | 1 | + | + |
| 6 | 1 | + | - |
| 7 | 1 | - | + |
| 8 | 1 | - | - |
There are more available seam deviant, it can extend more.
Fig. 3 shows schematically illustrating for the embodiment of the system according to the present invention, is used as Cigarette inspection in this case
A part for unit 32.Two distance measuring equipments are based on according to technology used in the present invention, specifically and by example,
Two or more laser telemetry heads 36,38 accurately measure the distance between the measurement head on the surface of cigarette 24, cigarette
24 are held in place and pass through slewing successively(It is rotary chuck 34 in this case)It is rotated around its longitudinal axis.
First telemetry head, i.e. tobacco laser telemetry head 36 are guided at the surface of the wrapping paper 25 of cigarette 24, and the second telemetry head,
That is filter tip laser telemetry head 38 is guided at the surface of the tipping paper 27 of cigarette 24.This is in the low portion of Fig. 3 to wear
Cross the viewgraph of cross-section of the tobacco section of cigarette 24 together with for direction of rotation 35 instruction and rotation axis 35'Described,
Rotation axis 35'It is ideally overlapped with the center of cigarette 24.
During rotation of the cigarette 24 on rotary chuck 34 or in rotary chuck 34, sent out from laser telemetry head 36,38
Laser beam will encounter wrapping paper seam 26 and tipping paper seam 28 respectively.While rotary chuck 34 rotates, two laser
Telemetry head 36,38 is accurate and measures in real time at a distance from corresponding laser telemetry head 36,38 is between the surface of cigarette 24
Variation.Laser telemetry head 36,38 will respectively generate distance signal respectively, which includes due to wrapping paper 25 and tipping paper
27 thickness and in the signal of variation distance by being encountered when paper seam 26,28.According to the direction of variation, system detectio its
It is to pack clockwise or counterclockwise.Due to measuring filter tip and tobacco lap simultaneously, so the system can provide two
Relative angle difference between a seam.
The original data signal generated by tobacco laser telemetry head 36 and filter tip laser telemetry head 38 is sent to signal
Processing unit 40 simultaneously carries out signal processing in signal processing unit 40, this will show in figures 4 and 5.
Due to there are various cigarette lengths in the market, therefore tobacco laser telemetry head 36 is preferably designed in height
It is adjusted on degree.Filter tip laser telemetry head 38 can be maintained in fixed position, and tipping paper is likely to be present in measure
The underface in the region of ventilation hole or perforation 30 in 27, to prevent any undesirable signal intensity.
Fig. 4 a)To 4d)Show the measuring signal from system shown in Fig. 3 in each stage of signal processing.
Under all situations, the unit of vertical axis is millimeter and shows the distance between the surface of cigarette 24 and observation laser telemetry head
Deviation, in this case, which can be tobacco laser telemetry head 36 or filter tip laser telemetry head
38.Horizontal axis indicates the quantity of each measurement period.It is carried out in this case with about 0.76 ° of resolution ratio in each data point
It measures, or every 0.05 mm is measured on the perimeter of cigarette.
The surface of cigarette 24 is typically irregular, and rotates the measuring signal to being sent out by laser telemetry head 36,38
Generate additional noise.This scrambling is in Fig. 4 a)Shown in it is high-visible in original data signal 50.Due to 50 weight of signal
Itself is answered, therefore it will be apparent that tested cigarette 24 has been rotated through more than twice.Clearly may be used in original data signal 50
What is seen is the narrow peak for constituting seam signal 52.Since seam signal 52 has plus sign, that is to say, that they are indicated for perfume
The distance between the surface of cigarette 24 and laser telemetry head have the peak of increased value, so carrying out the measurement, it means that paper
Direction is packed to make laser beam initially encounter the upper layer on the overlapping region of seam and then encounter the end of seam, thus
The ladder that amplitude is slightly less than 0.2 mm is generated in the signal, 0.2 mm corresponds to the thickness of paper.In addition, it could be seen that although former
The overall trend of beginning distance signal 50 is to increase, but in the data point before seam signal 52, distance signal is drastically
Reduce.Suddenly increase before this reduction be due in seam 26,28 packaged paper 25 or tipping paper 27 tobacco or filtering
Mouth material is released.On the contrary, if it is reversed to pack direction relative to the direction of rotation of cigarette, encountering this scene can subtract suddenly
The small distance to laser telemetry head, to generate negative peak in original data signal 50.
Original data signal 50 can be processed for keeping seam signal 52 isolated.For eliminating by cigarette itself
The appropriate filter of the variation of original data signal 50 caused by scrambling is high frequency pass filter, eliminates initial data
The low frequency part of signal 50.This such as can execute Fast Fourier Transform or only by not using any component to signal
It is completed by calculating all data point n of original data signal 50:
Wherein,Y highpass WithY raw The data point after high-pass filtering and original data signal point are indicated respectively.The high-pass filtering obtains
To Fig. 4 b)Shown in high pass filtered signal 60.High pass filtered signal 60 is presented on the quite stable near zero
Baseline and apparent significant seam signal 62, indicate the paper thickness of about 0.18 mm.
Although high pass filtered signal 60 itself be suitable for detecting the position of seam signal 62 being embedded and
Design, but another data-signal processing step can be advantageously applied for high pass filtered signal 60, to realize signal
More preferable noise reduction or smoothing.This can be realized by using median filter.It is answered under the window size cases of three data points
With the result of median filter in Fig. 4 c)In be shown as smoothing signal 70 have seam signal 72.Median filter works
So that intermediate value is selected from three different values for being present in the data point in future window, that is, abandon peak and minimum.Background signal
In noise be able to significant reduction.Therefore, it is possible to carry out the seam signal 72 in identification signal 70 with very high confidence level.
In Fig. 4 d)Shown in further step, it is double by being applied according to following formula around background signal 70
Side threshold value identifies seam signal 72:
Threshold value=μ± cσ
WhereinμIt is the average value of signal 70 after median filtering step, andσIt is the standard deviation of signal 70 after medium filtering.
ConstantcIt can be selected by appropriate to eliminate wrong report, and can be between 2 to 4.In Fig. 4 d)In the case of, threshold value
In the average value 2.8 above and below signal 70σOr at standard deviation.Each peak in signal 70 more than bilateral threshold value is recognized
For be seam detection.If system discovery detects the case where more peaks than expected, can pay the utmost attention to shake with highest
The peak of width absolute value.
The method of the present invention can be executed independently of the brand or size of cigarette, because advantageously cigarette 24 can rotate
More than once so that encounter seam signal 72 more than once.Because therefore seam signal 72 will be identified repeatedly, therefore seam signal
72 follow-up appearance indicates the fully rotating of cigarette 24.
Fig. 5 a)With Fig. 5 b)In show the result of seam signal identification.In this case, tobacco laser telemetry head 36
It is already subjected to high frequency pass filter and in Fig. 5 a with the original data signal of both filter tip laser telemetry heads 38)In to overlap that
It is shown on this.It is identical in both cases to pack direction, as indicated by the negative amplitude at peak.Seam signal 76 indicates wrapping paper
Seam signal, and seam signal 78 indicates tipping paper seam signal.
The system provides the peak position for tobacco laser telemetry head 36 at position 32 and 501, wherein amplitude be about-
114 μm and signal-to-noise ratio are 22.5dB, and filter tip laser telemetry head 38 observes peak, wherein amplitude at position 372 and 841
It it is about -140 μm and signal-to-noise ratio is 23.5dB.The system for generating two corresponding signals uses 36 He of tobacco laser telemetry head
One filter tip laser telemetry head 38, the two is due to mechanical restriction and relative to the angle in 90 ° each other of cigarette 24.It is wrapped calculating
When filling the offset between paper seam 26 and tipping paper seam 28, it is necessary to consider this 90 ° offsets between laser telemetry head 36,38.
By the offset or correspondingly phase shift between two seams 26,28AIt is expressed in degrees and is calculated as:
Wherein,TIndicate the average value in two periods, andψ tp Withψ wp Indicate the position of tipping paper seam 28 and wrapping paper seam 26
It sets, it is each according to the number of sample point.90 ° between laser telemetry head 36,38 offsets by addend+T/4It counts.
As use Fig. 5 a)In peak above-mentioned position when, calculate 469 data points average periodT, andψ tp =372
Withψ wp In the case of=32,9 ° of minimum angles between wrapping paper seam 26 and tipping paper seam 28 and 351 ° of maximum angle
It is calculated.This is in Fig. 5 b)In show, but the figure does not consider 90 ° between laser telemetry head 36,38 offsets.
The result of the determination of paper seam is that two seams are oriented with identical packaging direction, to generate minus symbol seam
Signal, and there are 9 ° of difference or phase shifts between two paper seams, and wherein tipping paper seam 28 is along in rotary chuck 34
The direction of rotation 35 of cigarette 24 is before wrapping paper seam 26.
All characteristics pointed out, including those of individually obtained from attached drawing and combine individual disclosed in other characteristics special
Property, it is considered to be important the present invention alone or in combination.It according to an embodiment of the invention can be by individual special
The combination of property or several characteristics is realized.The feature with wording " special " or " especially " being combined will be considered as preferred embodiment.
Reference numerals list
10 Double Length cigarettes
11 intersect axial conveying direction
12 tobacco rods
14 filter sticks
16 cutting planes
18 intersect axial conveying direction
20 end segments
22 filter end sections
24 single length cigarettes
25 wrapping papers
26 wrapping paper seams
27 tipping papers
28 tipping paper seams
30 perforation
32 inspection units
34 rotary chucks
35 direction of rotation
35'Rotation axis
36 tobacco laser telemetry heads
38 filter tip laser telemetry heads
40 signal processing units
50 original data signals
Seam signal in 52 original data signals
Signal after 60 high-pass filterings
62 seam signals
Signal after 70 high-pass filterings and medium filtering
72 seam signals
Seaming position in 73 filtered signals
Threshold values on 74
75 times threshold values
76 wrapping paper seam signals
78 tipping paper seam signals
TA, TB source orbit
Stick before FR
Stick after RR.
Claims (20)
1. a kind of source orbit for determining the product of the tobacco industry(TA,TB,FR-TA,FR-TB,RR-TA,RR-TB)'s
Method, wherein with multiple tracks(TA,TB)Cigarette manufacturing machine in the single length cigarette with filter tip that produces(24)By
Slewing(34)It receives and surrounds and the cigarette(24)The parallel rotation axis of longitudinal axis(35')Rotation, wherein
It is maintained at the slewing(34)In cigarette(24)Rotation during, to the cigarette(24)Wrapping paper(25)With connect
Fill paper(27)Seam(26,28)Carry out optical detection, wherein the cigarette is determined according to the result of the optical detection
(24)The source orbit(TA,TB,FR-TA,FR-TB,RR-TA,RR-TB), which is characterized in that the optical detection includes
Use at least one first distance-measuring device(36)With at least one second distance measuring device(38)The range measurement of execution,
Wherein, at least one first distance-measuring device(36)It is positioned and oriented and indicates to arrive the cigarette to generate(24)'s
Wrapping paper(25)Distance at least one first original data signal, and at least one second distance measuring device
(38)It is positioned and oriented and indicates to arrive the cigarette to generate(24)Tipping paper(27)Distance it is at least one second former
Beginning data-signal.
2. according to the method described in claim 1, it is characterized in that, former to described at least one first using high frequency pass filter
Beginning data-signal and/or at least one second original data signal are filtered.
3. according to the method described in claim 2, it is characterized in that, after being filtered using high frequency pass filter,
At least one the first filtered original data signal and/or at least one the second filtered original data signal are dropped
It makes an uproar.
4. according to the method described in claim 3, it is characterized in that, executing the noise reduction using median filter.
5. according to the method described in claim 1, it is characterized in that, in the original data signal or filtered initial data
Seam signal is detected in signal(62,72).
6. according to the method described in claim 5, it is characterized in that, the seam signal(62,72)It is the peak for indicating paper seam
Or step function.
7. according to the method described in claim 5, it is characterized in that, being more than threshold range by detection(74,75)To statistically
The signal amplitude of significant degree detects the seam in the original data signal or filtered original data signal
Signal(62,72), the threshold range(74,75)Selected or be calculated as so that the filtered original data signal with
Machine fluctuation is maintained in the threshold range.
8. according to the method described in claim 1, it is characterized in that, seam(26,28)Packaging direction by seam signal(62,
72)Amplitude symbol determine.
9. according to the method described in claim 1, it is characterized in that, determining the wrapping paper seam(26)It is connect with the tipping paper
Seam(28)In the cigarette(24)Circumference on position between offset, the offset indicates source orbit(TA,TB,FR-
TA,FR-TB,RR-TA,RR-TB).
10. a kind of source orbit for determining the product of the tobacco industry(TA,TB,FR-TA,FR-TB,RR-TA,RR-TB)
System, the system comprises:Slewing(34), it is used to be received in multiple tracks(TA,TB)Cigarette-making machine
The single length cigarette with filter tip produced in device(24)And so that it is surrounded and be parallel to the cigarette(24)Longitudinal axis rotation
Axis(35')Rotation;Optical detection component is used for the cigarette(24)Wrapping paper(25)And tipping paper(27)Seam
(26,28)Carry out optical detection;Controller and signal processing component(40), it is used to handle the original of the optical detection component
Data-signal(50), which is characterized in that the optical detection component includes at least one first distance-measuring device(36)Extremely
A few second distance measuring device(38), wherein at least one first distance-measuring device(36)It is positioned and oriented
It indicates to arrive the cigarette to generate(24)Wrapping paper(25)Distance at least one first original data signal, and institute
State at least one second distance measuring device(38)It is positioned and oriented and indicates to arrive the cigarette to generate(24)Tipping paper
(27)Distance at least one second original data signal.
11. system according to claim 10, which is characterized in that the controller and the signal processing apparatus(40)Quilt
It is configured to execute the method according to claim 11.
12. system according to claim 10, which is characterized in that at least one first distance-measuring device(36)
And/or at least one second distance measuring device(38)Including one or more laser telemetry units.
13. system according to claim 10, which is characterized in that the signal processing unit(40)It is configured with height
Frequency pass filter carries out at least one first original data signal and/or at least one second original data signal
Filtering.
14. system according to claim 13, which is characterized in that the signal processing unit(40)It is configured as to through height
At least one first original data signal of pass filter and/or at least one second original data signal execute noise reduction.
15. system according to claim 14, which is characterized in that the signal processing unit(40)In being configured with
Value filter executes the noise reduction.
16. system according to claim 10, which is characterized in that the signal processing unit(40)It is configured as described
Seam signal is detected in original data signal or filtered original data signal.
17. system according to claim 16, which is characterized in that the signal processing unit(40)It is configured as passing through inspection
Survey and detect seam signal more than threshold range to the signal amplitude of statistically significant degree, the threshold range selected or
It is calculated as so that the random fluctuation of the filtered original data signal is maintained in the threshold range.
18. system according to claim 10, which is characterized in that the signal processing unit(40)It is configured as passing through inspection
Survey seam signal(62,72)The symbol of amplitude detect seam(26,28)Packaging direction.
19. system according to claim 10, which is characterized in that the signal processing unit(40)It is configured as detection institute
State wrapping paper seam(26)With the tipping paper seam(28)In the cigarette(24)Circumference on position between offset, institute
State offset instruction source orbit(TA,TB,FR-TA,FR-TB,RR-TA,RR-TB).
20. a kind of cigarette inspection unit comprising be used to determine that tobacco adds according to one in claim 10 to 19
The system of the source orbit of the product of industry.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP17166355.2 | 2017-04-12 | ||
| EP17166355.2A EP3387919B1 (en) | 2017-04-12 | 2017-04-12 | Method and system for determining the track of origin of products of the tobacco processing industry, cigarette inspection station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108685161A true CN108685161A (en) | 2018-10-23 |
| CN108685161B CN108685161B (en) | 2022-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810325641.2A Active CN108685161B (en) | 2017-04-12 | 2018-04-12 | Method and system for determining the origin trajectory of products of the tobacco processing industry, cigarette inspection station |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3387919B1 (en) |
| KR (1) | KR102624345B1 (en) |
| CN (1) | CN108685161B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856160B (en) * | 2019-01-28 | 2024-02-20 | 重庆中烟工业有限责任公司 | Device for nondestructive testing of cigarette hole condition |
| CN111644391B (en) * | 2020-06-04 | 2024-03-08 | 红云红河烟草(集团)有限责任公司 | Tipping paper length abnormality detection system |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108685161B (en) | 2022-03-25 |
| EP3387919B1 (en) | 2020-01-29 |
| EP3387919A1 (en) | 2018-10-17 |
| KR102624345B1 (en) | 2024-01-11 |
| KR20180115230A (en) | 2018-10-22 |
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