CN1759766A - Apparatus and method for scanning and sorting tobacco leaves - Google Patents
Apparatus and method for scanning and sorting tobacco leaves Download PDFInfo
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- CN1759766A CN1759766A CN 200510055061 CN200510055061A CN1759766A CN 1759766 A CN1759766 A CN 1759766A CN 200510055061 CN200510055061 CN 200510055061 CN 200510055061 A CN200510055061 A CN 200510055061A CN 1759766 A CN1759766 A CN 1759766A
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Abstract
An apparatus for scanning and sorting tobacco leaves includes a conveyor to convey a flow of tobacco leaves. The flow of tobacco leaves includes acceptable and unacceptable leaves and undesirable particles. An air flow source lifts and accelerates the flow of leaves and particles to a speed at which the leaves and particles are separated. A duct contains the lifted and accelerated flow. A scanning device scans the flow in the duct and generates a signal upon detection of an unacceptable leaf and/or undesirable particle. A rejection device responds to the signal and forces the unacceptable leaf and/or undesirable particle from the duct. A method of scanning and sorting tobacco leaves are disclosed.
Description
Cross reference to related application
It is that the U.S. Patent application 60/552742 and applying date on March 15th, 2004 is the priority of the U.S. Patent application 60/561519 on April 13rd, 2004 that the application requires the applying date, and the complete content of these two applications is done this paper reference by receipts.
1. technical field
The present invention relates to be used to scan apparatus and method with sorting tobacco leaves.More particularly, the present invention relates to be used to process the apparatus and method of tobacco leaf, comprise tobacco leaf is scanned, and remove detected underproof tobacco leaf and other impurity.
2. background technology
The tobacco leaf that there obtains from the peasant comprises decolouring or impaired blade, and other impurity, and these must be removed during the preparatory processing of tobacco leaf.The preparatory processing of tobacco leaf is included in and separates tobacco leaf stream on a lot of conveyer belts that slowly move.On each conveyer belt, be equipped with one or more inspectors, so that with the naked eye check each blade, and manual unfavorable tobacco leaf and other impurity removed, as cane, stone, or by the used emgloves of tobacco leaf results personnel.This preparatory processing system cost costliness is because it needs a lot of space, equipment and manpower.The same inefficiency of this system, and unstable, and because the reviewer can not be concerned about each blade and particle comprehensively, although in general, conveyer belt is slowly motion.This system also depends on reviewer's subjective judgement, so that determine and remove blade decolouring or impaired and other impurity.
Early stage in the 1970's developed the machine that the tobacco leaf on a plurality of conveyer belts is flow to line scanning.This machine uses the light scanning tobacco leaf stream of different wave length.This machine can detect and discharge the different color of being selected by the operator.Although this machine can suitably be worked, they can run into the variation of light source, the influence of ambient lighting, and shade and the skew of correcting parameter, these factors can cause unsettled performance.This machine major part was eliminated in the 1980's, and desk checking person is returned to original level.
Technology was improved for obtaining in nineteen ninety, had developed more effective and more stable scanning means.This scanning means has adopted has the independently traditional optical device of light source and laser.Described scanning means is used in a lot of industries, and to be proved be successful aspect scanning tobacco leaf band and the stem stalk.But, each device is all extremely expensive.
Need be used to scan the machine of tobacco leaf,, discharge underproof (for example, decolouring with impaired) blade and/or other unwanted particles so that before tobacco leaf being broken into a plurality of little fragments.For with described product dispensation to a plurality of conveyer belts, make tobacco leaf stream enough thin so that can observe each blade independently, each factory needs 50-100 platform machine.The speed of conveyer belt also is restricted, because after surpassing certain speed, tobacco leaf can be blown in the air, and stops to carry.Cost of many machines so, low process velocity, and needed space make high surprising of factory construction and running cost.
Summary of the invention
An aspect of of the present present invention is the device that is used to scan with sorting tobacco leaves, comprises the conveyer belt that is designed to carry tobacco leaf stream.Described tobacco leaf stream comprises the tobacco leaf of qualified tobacco leaf, underproof tobacco leaf, and unwanted particle or impurity.Air flow source is designed so that tobacco leaf and particle or trash flow rise and accelerate to the speed that makes tobacco leaf and particle separation.Be designed to hold lifting carrier pipe and tobacco leaf and grain flow that quicken, and scanning means is designed to scan tobacco leaf and grain flow in the carrier pipe, and produce signal according to detection to underproof tobacco leaf and/or unwanted particle.Discharger is reacted to described signal, and is designed to underproof tobacco leaf and/or unwanted particle are discharged from conveyance conduit.According to a kind of typical embodiments of the present invention, described discharger comprises at least one magnetic valve, it is designed to receive described signal, and according to the signal that receives, from compressed air source, discharge compressed air, so that underproof tobacco leaf and unwanted particle are discharged from carrier pipe.According to another kind of typical embodiments of the present invention, described discharger comprises valve, and it is designed to optionally insert described tobacco leaf stream, so that tobacco leaf that can not receive and/or unwanted particle are derived from carrier pipe.
According to a further aspect in the invention, scan the tobacco leaf of from carrier pipe, discharging by second scanning means, and discharge underproof tobacco leaf, and the qualified tobacco leaf by second scanning means is transferred and mixes with tobacco leaf by described compressed air source.
According to a further aspect in the invention, described tobacco leaf is accelerated to the speed of about 4000-6000 feet per minute clock so that make tobacco leaf separated from one another, and with any unwanted particle separation.
According to a further aspect in the invention, described scanning means is optics or laser scanning device.Described scanning means is with tobacco leaf and particle in the described carrier pipe of 2000-12000 time velocity scanning each second.
In accordance with a further aspect of the present invention, the method of scanning and sorting tobacco leaves may further comprise the steps: carry tobacco leaf stream, described tobacco leaf stream comprises qualified tobacco leaf, underproof tobacco leaf and unwanted particle, promote tobacco leaf and grain flow, and it is accelerated to the speed that makes tobacco leaf and particle separation, tobacco leaf and the particle that separates scanned, so that detect underproof tobacco leaf and unwanted particle, and underproof tobacco leaf and unwanted particle discharged from the tobacco leaf that quickens and grain flow.
Description of drawings
Below in conjunction with schematic accompanying drawing, typical embodiments of the present invention is described, wherein:
Fig. 1 be according to the present invention typical embodiments be used to scan side view with the device of sorting tobacco leaves;
Fig. 2 is the floor map of device shown in Figure 1;
Fig. 3 be according to the present invention another kind of typical embodiments be used to scan side view with the device of sorting tobacco leaves.
The specific embodiment
Referring to Fig. 1, the inventive system comprises conveyer belt 1.After through preliminary adjusting processing, tobacco leaf is transported on the conveyer belt 1 from blending bunker or other similar device.By known devices and method described tobacco leaf is divided into 10000-15000 Pounds Per Hour tobacco leaf stream.Each tobacco leaf stream comprises tobacco leaf and other particles and/or impurity.Described tobacco leaf stream is directed to conveyer belt 1, and for example, described conveyer belt can be the ring-type tape conveyor belt.Should be understood that, can use the conveyer belt of other types.In preferred embodiments, the width of conveyer belt 1 is 72 inches, and running speed is about 250 feet per minute clocks, so that the tobacco leaf " carpet " that provides thickness to be approximately the 1-2 inch.
By conveyer belt 1 tobacco leaf stream is transported to air flow source 2.At air flow source 2 places, the air that makes progress stream promotes described tobacco leaf stream.Some unwanted particle or impurity are heavier than tobacco leaf, as metal or stone, thereby can not be promoted by described air stream, and drop to outside the described tobacco leaf stream.The air stream that other unwanted particles and/or impurity may be made progress promotes, and carries with tobacco leaf.In the carrier pipe 20 that is extended out by air flow source, tobacco leaf stream accelerated to is enough to make tobacco leaf separated from one another, and with the speed of any unwanted particle separation.In preferred embodiments, tobacco leaf stream is accelerated to the speed of about 4000-6000 feet per minute clock.Tobacco leaf stream is accelerated to such speed, every foot wide device is loaded with about 2000-3000 Pounds Per Hour speed and the processing tobacco leaf.
Although shown carrier pipe 20 is vertically extending from the air source 2, should be understood that carrier pipe 20 air source 2 relatively tilts, and even can be from horizontal-extending on the air source 2.It is to be further understood that carrier pipe 20 can have any cross sectional shape, and have the length that is enough to tobacco leaf stream is accelerated to the speed that makes each sheet tobacco leaf separation.
The tobacco leaf and the unwanted particle that separate by laser or 3 pairs of described each sheets of optical scanner scan.Should be understood that, more than one scanning means 3 can be provided.Carrier pipe 20 can be made with transparent plastic or glass material, so that scanning means 3 can detect tobacco leaf and particle by carrier pipe 20.Carrier pipe 20 can also be used opaque material, makes as metal, and has the transparent part 30 that is arranged on scanning means 3 present positions, so that can detect tobacco leaf by scanning means 3.Transparent part 30 can be arranged on the two opposite sides of carrier pipe, perhaps can be arranged on the entire circumference of carrier pipe 20.
Detect any the underproof of acceptance criteria that do not satisfy by scanning means 3, for example decolouring or impaired blade or other particles, signal is transmitted to magnetic valve 4.When magnetic valve 4 was opened, they will be from the blast injection of compressed air source 40 on underproof tobacco leaf or particle.Magnetic valve 4 is set on the width of carrier pipe 20.Although shown scanning means 3, magnetic valve 4 and compressed air source 40 are positioned at the part of the level substantially of carrier pipe, should be understood that, and scanning means 3, magnetic valve 4 can be along the vertical substantially part setting of conduit 20 with compressed air source 40.
Magnetic valve 4 is by programmable control device 50 controls, and this control device receives the signal from scanning means 3, and the startup of control magnetic valve 4 (i.e. excitation).Programmable control device 50 comprises software, and programme, this programming can be considered the speed of tobacco leaf in carrier pipe 20, and magnetic valve 4 time of opening, and control magnetic valve duration of opening, during this period magnetic valve 4 with the blast injection of setting out on underproof tobacco leaf and/or object.
Compressed air is discharged carrier pipe 20 with underproof tobacco leaf or particle, and enters the passage 21 that leads to the air-lock place.Described underproof tobacco leaf and/or particle are excreted to from air-lock 5 on second conveyer belt 6.In order to prevent that underproof tobacco leaf and/or particle are trapped in the binding site between carrier pipe 20 and the passage 21, provide roller 7 at this binding site.Roller 7 rotates, so that will be detained, the tobacco leaf of discharge and/or particle enter passage 21.Should be understood that roller 7 can be rotatable blade or plate.Should be understood that, the plurality of electromagnetic valve can be provided, passage, and roller/blade/plate.
Some qualified tobacco leaf can be discharged with underproof tobacco leaf and particle.Referring to Fig. 2, merge the tobacco leaf and/or the particle of discharging and be transported to second scanning means 11 by second conveyer belt 6, this device can be scanning means standard, that can obtain by the commercial channel, and it is designed and manufactured as can scan second tobacco leaf on the conveyer belt.Tobacco leaf that is discharged from and/or particle carry out the sorting second time, so that discharge underproof tobacco leaf and/or particle from qualified tobacco leaf.Remove underproof tobacco leaf or/or particle from the 3rd conveyer belt 14, for example, by manual removal, and any tobacco leaf that stays sends back to second conveyer belt 6 by the 4th and the 5th conveyer belt 15 and 16, and by second scanning means 11.Send back in the tobacco leaf stream by the 6th and the 7th conveyer belt 12 and 13 by second scanning means, 11 detected qualified tobacco leaves.Qualified tobacco leaf is sent back to the tobacco leaf stream that is arranged in passage 21 position afterwards.
By the tobacco leaf of cyclonic arrangement 8 unloading, and fall on the 5th conveyer belt 9 via air-lock 22 by the tobacco leaf stream that is arranged in carrier pipe 20 of scanning means 3.Described tobacco leaf merges with qualified tobacco leaf from the 4th conveyer belt 12 again, and pushes ahead and be for further processing.Cyclonic arrangement 8 is bled by centrifugal fan 10, and waste gas is purified, and for example, purifies by bag filter, and then is discharged in the atmosphere.
Existing scanning means is carried tobacco leaf with the speed of 600-1000 feet per minute clock.Because in fact their size and volume can not scan all tobacco leaves.Have a lot of shades, and the quantity of the qualified tobacco leaf that is discharged from is with high can't accepting.By with the speed of 4000-6000 feet per minute clock tobacco leaf being dispersed in the tobacco leaf stream in the carrier pipe, each sheet tobacco leaf will separate with the tobacco leaf around it, and can receive individually or discharge.By two opposite sides (for example, top and the bottom) scanning from tobacco leaf stream, described scanning means can be seen any underproof tobacco leaf.Because this stage in tobacco leaf processing there is no need to discharge very little particle, separating the needed speed of each sheet tobacco leaf is acceptable, even can't detect very little particle.Laser scanning speed is in the scope of 2000-12000 scanning/second.Under 6000 feet per minute clocks and the parameter of 2000 scanning/seconds, single pass can be by per 0.6 inch tobacco leaf stream, and it provides acceptable result.Under 6000 feet per minute clocks and the parameter of 12000 scanning/seconds, single pass can be by per 0.1 inch tobacco leaf stream, and it provides is the acceptable result more.Should be understood that other combinations of flow velocity and sweep speed also are feasible.
Referring to Fig. 3, comprise valve 60 according to the device of another kind of typical embodiments, it is rotatably to be connected on the carrier pipe 20 by the hinge 61 such as the spring bias voltage, is positioned at the position near passage 21.When scanning means 3 detects underproof tobacco leaf and/or particle, send signal to control device 50 by scanning means 3.Control device 50 starts magnetic valve 4 (or a plurality of magnetic valve), causes the plunger of magnetic valve 4 to extend, and overcomes the biasing force rotation valve 60 of hinge 61, makes it rotate to position shown in the dotted line from position shown in the solid line.On position shown in the dotted line, valve 60 is with underproof tobacco leaf and/or particle introduction channel 21.
Although valve 60 is that it can also be arranged on the sloping portion or the vertical component of carrier pipe shown in the horizontal component of carrier pipe 20.It is to be further understood that, described valve also can rotate, can be driven into position linearly with underproof tobacco leaf and/or particle introduction channel 21, perhaps described valve can be arranged in the described feed track with blade shape, similar with shutoff valve, tobacco leaf and/or particle are drawn from carrier pipe.It is to be further understood that and also the drive unit except magnetic valve can be used for described valve is driven into position with underproof tobacco leaf and/or particle introduction channel 21.For example, can described valve be driven into described position with compressed air source.
Although already some typical embodiments of the present invention was illustrated, should be understood that, under the prerequisite that does not exceed the scope of the invention, can carry out various changes and improvements to the present invention.
Claims (33)
1. device that is used to scan with sorting tobacco leaves comprises:
Be used to carry the conveyer belt of tobacco leaf stream, described tobacco leaf stream comprises qualified tobacco leaf, underproof tobacco leaf and unwanted particle;
Air flow source is used to promote described tobacco leaf stream, and it is accelerated to the speed that makes tobacco leaf and particle separation;
Carrier pipe, be used to hold described lifting and quicken after tobacco leaf and grain flow;
Scanning means is used for scanning the tobacco leaf stream of described carrier pipe, and sends signal when detecting at least one underproof tobacco leaf and unwanted particle; With
To the discharger that described signal responds, it is used for underproof tobacco leaf and unwanted particle are discharged from carrier pipe.
2. device as claimed in claim 1, wherein, described carrier pipe is perpendicular to that described conveyer belt extends.
3. device as claimed in claim 2, wherein, described carrier pipe comprises relative transparent part, and described scanning means is installed in described transparent part described tobacco leaf is flow to line scanning.
4. device as claimed in claim 1, wherein, described discharger comprises at least one magnetic valve, and it receives described signal, and when receiving described signal, from compressed air source, discharge compressed air, and underproof tobacco leaf and unwanted particle are discharged from carrier pipe.
5. device as claimed in claim 1 also comprises the passage that is connected with described carrier pipe, and this passage receives the underproof tobacco leaf and the unwanted particle of discharging from tobacco leaf stream.
6. device as claimed in claim 5 also comprises being installed in described carrier pipe and chute bonding part, and rotatable roller, this roller with the underproof tobacco leaf of described joint portion office and unwanted transfer of granules in described passage.
7. device as claimed in claim 5 also comprises an air-lock, and it receives the underproof tobacco leaf and the unwanted particle of discharging from described passage.
8. device as claimed in claim 7 also comprises second conveyer belt, and it receives the underproof tobacco leaf and the unwanted particle of discharging from air-lock.
9. device as claimed in claim 8 also comprises second scanning means, and it scans tobacco leaf and the particle of being carried by described second conveyer belt, so that detect underproof tobacco leaf and unwanted particle.
10. device as claimed in claim 9 also comprises the 3rd conveyer belt, and it is carried by detected defective tobacco leaf of described second scanning means and unwanted particle.
11. as the device of claim 10, also comprise the 4th conveyer belt, it carries the qualified tobacco leaf by described second scanning means.
12. device as claimed in claim 1 also comprises a cyclonic arrangement, it unloads tobacco leaf from the carrier pipe by described discharger.
13. as the device of claim 12, also comprise an air-lock, it receives the tobacco leaf from described cyclonic arrangement.
14. as the device of claim 12, also comprise a fan, it aspirates described cyclonic arrangement.
15. as the device of claim 13, also comprise second conveyer belt, it transports the tobacco leaf from described air-lock.
16. device as claimed in claim 1, wherein, it is thick that the tobacco leaf that is transported to described air flow source by described conveyer belt flows about 1-2 foot.
17. as the device of claim 16, wherein, described air flow source accelerates to described tobacco leaf the speed of about 4000-6000 feet per minute clock.
18. device as claimed in claim 1, wherein, described scanning means is laser scanning device or optical scanner.
19. as the device of claim 17, wherein, described scanning means is with the described tobacco leaf stream of about 2000-12000 time/second velocity scanning.
20. device as claimed in claim 1, wherein, described scanning means scans described tobacco leaf stream from two opposite sides.
21. device as claimed in claim 1 also comprises the control device that the described discharger of control starts.
22. as the device of claim 21, wherein, described control device is programmable, and controls the startup of discharger and the startup duration of discharger according to the speed of tobacco leaf stream.
23. device as claimed in claim 1, wherein, described discharger comprises valve, and it optionally inserts in tobacco leaf and the grain flow according to the signal from described scanning means, so that underproof tobacco leaf and unwanted particle are derived from carrier pipe.
24. as the device of claim 23, wherein, described valve rotatably is connected with described carrier pipe.
25. as the device of claim 24, wherein, described discharger also comprises can be according to the magnetic valve from the signal enabling of described scanning means, this magnetic valve rotates to described valve in tobacco leaf and the grain flow.
26. the method for scanning and sorting tobacco leaves, this method comprises:
Conveying tobacco leaf stream, described tobacco leaf stream comprises qualified tobacco leaf, underproof tobacco leaf and unwanted particle;
Promote described tobacco leaf and grain flow, and it is accelerated to the speed that makes tobacco leaf that separation take place;
Tobacco leaf and particle that scanning separates are so that detect underproof tobacco leaf and unwanted particle; With
Underproof tobacco leaf and unwanted particle are discharged from the tobacco leaf that quickens and grain flow.
27. as the method for claim 26, wherein, scanning comprises that scanning described tobacco leaf from two opposite sides flows.
28. as the method for claim 26, wherein, described underproof tobacco leaf of discharge and unwanted particle comprise blast injection on underproof tobacco leaf and unwanted particle from tobacco leaf stream.
29. the method as claim 26 also comprises:
The tobacco leaf that to discharge from tobacco leaf stream and particle transport are to second scanning means; With
The tobacco leaf and the particle of discharging from described tobacco leaf stream scanned, so that detect underproof tobacco leaf and unwanted particle.
30., comprise that also the tobacco leaf of discharging detects underproof tobacco leaf and unwanted particle and discharge by second scanning means from described tobacco leaf stream as the method for claim 29.
31., also comprise the qualified tobacco leaf of carrying by second scanning means as the method for claim 29.
32., wherein, described tobacco leaf and particle are accelerated to the speed of about 4000-6000 feet per minute clock as the method for claim 26.
33. as the method for claim 26, wherein, described tobacco leaf and grain flow are the velocity scannings with about 2000-12000 time/second.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US55274204P | 2004-03-15 | 2004-03-15 | |
| US60/552,742 | 2004-03-15 | ||
| US60/561,519 | 2004-04-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1759766A true CN1759766A (en) | 2006-04-19 |
| CN100563473C CN100563473C (en) | 2009-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100550619A Active CN100563473C (en) | 2004-03-15 | 2005-03-15 | Be used to scan apparatus and method with sorting tobacco leaves |
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| Country | Link |
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| CN (1) | CN100563473C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1672813B (en) * | 2004-03-26 | 2010-12-29 | 豪尼制丝设备责任有限公司 | Method and device for the separation of foreign bodies |
| CN104117489A (en) * | 2014-07-09 | 2014-10-29 | 成都信泰科技有限公司 | Air-flow type spectrum foreign body elimination method and device |
| CN106820245A (en) * | 2017-03-02 | 2017-06-13 | 红塔烟草(集团)有限责任公司 | A kind of removing foreign material from tobacco device |
| CN107296297A (en) * | 2016-07-01 | 2017-10-27 | 廖鲁昕 | A kind of tobacco impurities identification, eliminating system and method based on exciting light |
| CN108160524A (en) * | 2017-12-15 | 2018-06-15 | 常熟市百联自动机械有限公司 | Heterochromatic suede automatic removing device |
| CN113546843A (en) * | 2021-07-28 | 2021-10-26 | 杜亚琳 | Pneumatic sorting device and sorting method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5462176A (en) * | 1994-06-03 | 1995-10-31 | Brown & Williamson Tobacco Corporation | Latex detection system |
| ES2264654T3 (en) * | 1999-02-13 | 2007-01-16 | Hauni Maschinenbau Ag | PROVISION TO CREATE A MONOCAP FROM A CURRENT COAT MATERIAL SUPPLIED CONTINUOUSLY. |
| DE19948559C1 (en) * | 1999-10-08 | 2001-02-01 | Bat Cigarettenfab Gmbh | Particle detection method for tobacco particle stream e.g. in cigarette manufacturing machine, evaluates blocking of scanning beam by detected particles for calculating particle mean size and mean volume |
-
2005
- 2005-03-15 CN CNB2005100550619A patent/CN100563473C/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1672813B (en) * | 2004-03-26 | 2010-12-29 | 豪尼制丝设备责任有限公司 | Method and device for the separation of foreign bodies |
| CN104117489A (en) * | 2014-07-09 | 2014-10-29 | 成都信泰科技有限公司 | Air-flow type spectrum foreign body elimination method and device |
| CN107296297A (en) * | 2016-07-01 | 2017-10-27 | 廖鲁昕 | A kind of tobacco impurities identification, eliminating system and method based on exciting light |
| CN106820245A (en) * | 2017-03-02 | 2017-06-13 | 红塔烟草(集团)有限责任公司 | A kind of removing foreign material from tobacco device |
| CN108160524A (en) * | 2017-12-15 | 2018-06-15 | 常熟市百联自动机械有限公司 | Heterochromatic suede automatic removing device |
| CN108160524B (en) * | 2017-12-15 | 2024-01-09 | 常熟市百联自动机械有限公司 | Automatic removing device for different-color velvet |
| CN113546843A (en) * | 2021-07-28 | 2021-10-26 | 杜亚琳 | Pneumatic sorting device and sorting method |
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| CN100563473C (en) | 2009-12-02 |
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