CN103900932B - A kind of sheet cigarette smoke box density variation detecting system and detection method thereof - Google Patents
A kind of sheet cigarette smoke box density variation detecting system and detection method thereof Download PDFInfo
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- CN103900932B CN103900932B CN201410143322.1A CN201410143322A CN103900932B CN 103900932 B CN103900932 B CN 103900932B CN 201410143322 A CN201410143322 A CN 201410143322A CN 103900932 B CN103900932 B CN 103900932B
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Abstract
The present invention provides a kind of sheet cigarette smoke box density variation detecting system and detection method thereof, and including data acquisition unit and data analysis unit, the outfan of described data acquisition unit is connected with the input of described data analysis unit；Data acquisition unit includes support, photocell, microwave transmitting probe, microwave receiving probe, upper rail, lower guideway, limit switch, connecting rod, programmable logic controller (PLC), servomotor and industrial computer.Described cigarette smoke box density variation detecting system is easy to operate, safeguards few；Detection speed is fast, and detection degree of accuracy is high；Do not affect normal production, easy for installation, have great practical value.
Description
Technical field
The present invention relates to detecting system based on microwave principle and detection method thereof, especially
Relate to density variation microwave detection system and the inspection thereof of sheet cigarette smoke box in a kind of tobacco redrying processing
Survey method.
Background technology
The detection of sheet cigarette smoke box density variation is more and more important for tobacco redrying industry,
If controlling bad, cigarette the temperature inside the box and moisture diffusion can be caused inconsistent, cause smoke box to go mouldy
Or spontaneous combustion.When density variation is excessive simultaneously, local can cause Nicotiana tabacum L. force feed phenomenon, and causing can not
The economic loss retrieved.Current international and domestic whole redrying industry is inclined for the vanning density of sheet cigarette
The industry standard of difference is based on 9 hole sampling methods, calculates the deviation factor of 9 hole example weights, public
Formula is as follows: DVR=(SD/W) x100%, and wherein W is the average weight of 9 samples, SD
Being the standard weight deviations of 9 example weights, DVR is smoke box density variation.Traditional detection
Method is that 9 samplings carry out offline inspection, and such method wastes time and energy, according to produced on-site
Situation, can only spot-check every day 2～4 bag, it is impossible to often bag detect.And on-line checking leads to
Often carried out by ionization radiation method, due to the radiation hazradial bundle of X-ray, ionizing radiation simultaneously
Method needs to make smoke box stop detection, terminates the flow process of streamline, and the detection time is about 60 seconds,
Can not accomplish when high speed outlet often to wrap detection, additionally ionization radiation method needs to gather 3 probes
Carry out row detection, need to stop detection and calculate to obtain the position data in 9 holes for 3 times,
Therefore, the range of ionization radiation method receives and limits significantly.
Chinese patent 201110225769.X discloses a kind of boxing tobacco leaf density variation
Pressure detection method and detection device thereof, this detection device is provided with the most a set of data acquisition unit
And data handling system, data acquisition unit is connected with data handling system；Data acquisition unit
Being provided with pressure head, sampler, pressure transducer and data collecting card, sampler is fixed on pressure and passes
On sensor, sampler is embedded in pressure head, and the end face of sampler is higher than pressure head, pressure transducer
Being connected with data collecting card, pressure transducer and data collecting card are fixed on pressure head upper surface, institute
The input port stating data handling system is connected with data collecting card electrical signal.This device
Although overcoming some defects of conventional art, such as, can carry out on-line checking, eliminate simultaneously
The adverse effect of ionizing radiation, but its defect is also it will be apparent that i.e. inconvenient operation, carries out
Detection can affect the transmission speed of Nicotiana tabacum L., thus affects production efficiency, furthermore with pressure sensing
The error of device is relatively big, and detection equipment needs often to safeguard.Therefore market demand one operation letter
Just, the sheet cigarette smoke box density variation detecting system that detection degree of accuracy is high.
Summary of the invention
It is an object of the invention to provide a kind of easy to operate, safeguard few；Detection speed
Hurry up, detection degree of accuracy is high；Do not affect the sheet cigarette smoke box density variation easy for installation of normal production
Detecting system.
To achieve these goals, the invention provides a kind of sheet cigarette smoke box density variation
Detecting system, including data acquisition unit and data analysis unit, described data acquisition unit
Outfan is connected with the input of described data analysis unit；Described data acquisition unit includes:
Support for installing component；
For the photocell of induced signal, described photocell has three, is uniformly arranged on described
The top central authorities of support, are No. 1 photocell, No. 2 photocells and No. 3 photocells, institute respectively
State the width less than smoke box of the distance between No. 1 photocell and No. 3 photocells；
Microwave transmitting probe and microwave receiving probe for detection；
For respectively movable arrange described microwave transmitting probe and the upper rail of microwave receiving probe and
Lower guideway, described upper rail and lower guideway be separately positioned on the upper and lower side of described support, and smoke box is defeated
Send track between described upper rail and lower guideway, described upper rail and/or the two ends of lower guideway
It is respectively equipped with two limit switches；
For making the microwave transmitting probe on described upper rail and the microwave receiving on described lower guideway
Probe can produce the described upper rail of connection and the connecting rod of lower guideway of linkage；
For transmitting the PLC(programmable logic controller (PLC) of photocell induced signal)；
For providing the servomotor of power, it is connected with one end of described connecting rod；With
For the industrial computer controlled.
Preferably, the microwave irradiation power of described microwave transmitting probe is 5～7 millis
Watt, more preferably 6 milliwatts.
Present invention also offers one and utilize sheet above cigarette smoke box density variation detecting system
The method of detection lug cigarette smoke box density variation, comprises the steps:
Sheet cigarette smoke box passes through delivery track uniform motion, and photocell detection to sheet cigarette smoke box arrives
After, described photocell sends enabling signal by PLC to servomotor, starts servomotor,
Servomotor reaches a fixed speed in moment, drives described microwave to send out by described connecting rod
Penetrate probe and microwave receiving probe synchronizes equidirectional respectively along described upper rail and lower guideway simultaneously
Move with uniform velocity；
When described microwave transmitting probe, microwave receiving probe move to No. 1 position corresponding to photocell
When putting, described No. 1 photocell sends the instruction of collection signal, industry control by PLC to industrial computer
Machine controls to gather out the density value of a point；
When described microwave transmitting probe, microwave receiving probe move to No. 2 positions corresponding to photocell
When putting, described No. 2 photocells send the instruction of collection signal, industry control by PLC to industrial computer
Machine controls to gather out the density value of b point；
When described microwave transmitting probe, microwave receiving probe move to No. 3 positions corresponding to photocell
When putting, described No. 3 photocells send the instruction of collection signal, industry control by PLC to industrial computer
Machine controls to gather out the density value of c point；
Described microwave transmitting probe and microwave receiving probe continue to move with uniform velocity until encountering guide rail
The described limit switch of side i.e. starts to turn to move with uniform velocity, when described microwave transmitting probe,
When microwave receiving probe again moves into position corresponding to No. 3 photocells, described No. 3 photocells
Sent the instruction of collection signal to industrial computer by PLC, industrial computer controls to gather out the close of d point
Angle value；
When described microwave transmitting probe, microwave receiving probe again move into No. 2 photocell correspondences
Position time, described No. 2 photocells by PLC to industrial computer send gather signal instruction,
Industrial computer controls to gather out the density value of e point；
When described microwave transmitting probe, microwave receiving probe again move into No. 1 photocell correspondence
Position time, described No. 1 photocell by PLC to industrial computer send gather signal instruction,
Industrial computer controls to gather out the density value of f point；
Described microwave transmitting probe and microwave receiving probe continue to move with uniform velocity until encountering guide rail
The described limit switch of opposite side i.e. starts to turn to move with uniform velocity, when described Microwave emission is visited
When head, microwave receiving probe again moves into position corresponding to No. 1 photocell, described No. 1 light
Fulgurite sends the instruction of collection signal by PLC to industrial computer, and industrial computer controls to gather out g point
Density value；
When described microwave transmitting probe, microwave receiving probe again move into No. 2 photocell correspondences
Position time, described No. 2 photocells by PLC to industrial computer send gather signal instruction,
Industrial computer controls to gather out the density value of h point；
When described microwave transmitting probe, microwave receiving probe again move into No. 3 photocell correspondences
Position time, described No. 3 photocells by PLC to industrial computer send gather signal instruction,
Industrial computer controls to gather out the density value of i point；
Then the density value of above-mentioned 9 samplings is analyzed by described data analysis unit
The density variation of slice cigarette smoke box, the density variation of the sheet cigarette smoke box thus completing 9 samplings is micro-
Ripple detects.
Preferably, described cigarette smoke box is from initially entering detection zone to fully out detection
Time used by district is 4～6 seconds, and described microwave transmitting probe and microwave receiving are popped one's head in each site
The detection time less equal than 0.1 second, described microwave transmitting probe and microwave receiving probe exist
Between the limit switch of two ends, the time of motion is 1.3～2 seconds.
The principle of the present invention is: during the object of microwave penetration regular length, microwave meeting
Phase offset occurs, and along with the increase of object density, the situation of phase offset is the most serious.Launch
Probe launches microwave, records the launch time of microwave simultaneously, and after microwave penetration smoke box, arrival connects
Receiving probe, receiving transducer, according to receiving time of microwave, calculates the big of phase offset
Little, it is multiplied by correlation coefficient the most again, draws smoke box density value.
Utilize technical scheme to carry out the detection of sheet cigarette smoke box density variation and have aobvious
The advantage write, concrete embodiment is as follows: change little for in-situ production environment, does not affect normal raw
Produce；Often wrap detection, smoke box need not be made to stop, not affecting normal discharging speed；Support is installed
The aluminium profile that employing can be assembled in real time, welding, not produce spark (on-the-spot anti-for one-level
Fire), can when normal production installation equipment；Easy to operate, safeguard few；Smoke box density is inclined
Difference can carry out the automatic adjustment of density as feedback signal；Microwave irradiation power is about 6 milliwatts
(radiant power during general mobile phone communication is 120 milliwatts), radiationless pollution；Detection speed
Hurry up, it is only necessary to about 5 seconds.
Accompanying drawing explanation
Fig. 1 is the structural representation of sheet cigarette smoke box density variation detecting system in the present invention
Figure.
Fig. 2 is the distribution schematic diagram in sheet cigarette smoke box Density Detection site in the present invention.
Detailed description of the invention
Being described in further detail the present invention below in conjunction with the accompanying drawings, given embodiment is only
It is to be embodied as explanation and have the advantage that, is not intended to limit the protection of the present invention
Scope.
Sheet cigarette smoke box density variation detecting system as shown in Figure 1, including data acquisition
Unit and data analysis unit, the outfan of described data acquisition unit and described data analysis list
The input of unit connects；Described data acquisition unit includes:
Support 1 for installing component；
For the photocell of induced signal, described photocell has three, is uniformly arranged on described
The top central authorities of support 1, are 21, No. 2 photocells 22 of No. 1 photocell and No. 3 photoelectricity respectively
Pipe 23, the distance between described No. 1 photocell 21 and No. 3 photocells 23 is less than the width of smoke box
Degree；
Microwave transmitting probe 31 and microwave receiving probe 32 for detection；
For movable described microwave transmitting probe 31 and the microwave receiving probe 32 of arranging respectively
Guide rail 41 and lower guideway 42, described upper rail 41 and lower guideway 42 are separately positioned on described
The upper and lower side of frame 1, smoke box delivery track 5 be positioned at described upper rail 41 and lower guideway 42 it
Between, described lower guideway 42 be respectively arranged at two ends with two limit switches 6；
For making on microwave transmitting probe 31 on described upper rail 41 and described lower guideway 42
Microwave receiving probe 32 can produce the described upper rail 41 of connection and the company of lower guideway 42 of linkage
Extension bar 7；
For transmitting the PLC of photocell induced signal；
For providing the servomotor 8 of power, it is connected with one end of described connecting rod 7；With
For the industrial computer 9 controlled.
The microwave irradiation power of described microwave transmitting probe 31 is 6 milliwatts.
One utilizes sheet above cigarette smoke box density variation detecting system detection lug cigarette smoke box close
The method of degree deviation, comprises the steps:
Sheet cigarette smoke box passes through delivery track 5 uniform motion, and photocell detection to sheet cigarette smoke box arrives
After, described photocell sends enabling signal by PLC to servomotor 8, starts servomotor
8, servomotor 8 reaches a fixed speed in moment, is driven described by described chain extension bar 7
Microwave transmitting probe 31 and microwave receiving probe 32 are respectively along described upper rail 41 and lower guideway
42 synchronize equidirectional moving with uniform velocity simultaneously；
When described microwave transmitting probe 31, microwave receiving probe 32 move to No. 1 photocell 21
During corresponding position, described No. 1 photocell 21 sends collection signal by PLC to industrial computer 9
Instruction, industrial computer 9 controls to gather out the density value of a point；
When described microwave transmitting probe 31, microwave receiving probe 32 move to No. 2 photocells 22
During corresponding position, described No. 2 photocells 22 send collection signal by PLC to industrial computer 9
Instruction, industrial computer 9 controls to gather out the density value of b point；
When described microwave transmitting probe 31, microwave receiving probe 32 move to No. 3 photocells 23
During corresponding position, described No. 3 photocells 23 send collection signal by PLC to industrial computer 9
Instruction, industrial computer 9 controls to gather out the density value of c point；
Described microwave transmitting probe 31 and microwave receiving probe 32 continue to move with uniform velocity until touching
Described limit switch 6 to guide rail side i.e. starts to turn to move with uniform velocity, when described microwave is sent out
Penetrate probe 31, position that microwave receiving probe 32 again moves into No. 3 photocell 23 correspondences
Time, described No. 3 photocells 23 send the instruction of collection signal, work by PLC to industrial computer 9
Control machine 9 controls to gather out the density value of d point；
When described microwave transmitting probe 31, microwave receiving probe 32 again move into No. 2 photoelectricity
During the position of pipe 22 correspondence, described No. 2 photocells 22 are sent to industrial computer 9 by PLC and adopt
The instruction of collection signal, industrial computer 9 controls to gather out the density value of e point；
When described microwave transmitting probe 31, microwave receiving probe 32 again move into No. 1 photoelectricity
During the position of pipe 21 correspondence, described No. 1 photocell 21 is sent to industrial computer 9 by PLC and adopts
The instruction of collection signal, industrial computer 9 controls to gather out the density value of f point；
Described microwave transmitting probe 31 and microwave receiving probe 32 continue to move with uniform velocity until touching
Described limit switch 6 to guide rail opposite side i.e. starts to turn to move with uniform velocity, when described microwave
Transmitting probe 31, microwave receiving probe 32 again moves into the position of No. 1 photocell 21 correspondence
Time, described No. 1 photocell 21 sends the instruction of collection signal, work by PLC to industrial computer 9
Control machine 9 controls to gather out the density value of g point；
When described microwave transmitting probe 31, microwave receiving probe 32 again move into No. 2 photoelectricity
During the position of pipe 22 correspondence, described No. 2 photocells 22 are sent to industrial computer 9 by PLC and adopt
The instruction of collection signal, industrial computer 9 controls to gather out the density value of h point；
When described microwave transmitting probe 31, microwave receiving probe 32 again move into No. 3 photoelectricity
During the position of pipe 23 correspondence, described No. 3 photocells 23 are sent to industrial computer 9 by PLC and adopt
The instruction of collection signal, industrial computer 9 controls to gather out the density value of i point.Above-mentioned smoke box detecting position
Point schematic diagram is as shown in Figure 2.
Described cigarette smoke box is 5 from initially entering detection zone to the time used by fully out detection zone
Second, described microwave transmitting probe 31 and microwave receiving probe 32 are in the detection time in each site
Being 0.08 second, described microwave transmitting probe 31 and microwave receiving probe 32 are at two ends limit switch
Between 6, the time of motion is 1.3 seconds.
Then the density value of above-mentioned 9 samplings is analyzed by described data analysis unit
The density variation of slice cigarette smoke box, the density variation of the sheet cigarette smoke box thus completing 9 samplings is micro-
Ripple detects.
Although describing the present invention according to preferred embodiment, but deposit
At the change fallen within the scope and spirit of the invention, displacement and various replacement equivalent.
Such as: be not difficult to draw by arranging N(N >=4 in cantilever tip from above scheme) individual photoelectricity
Pipe, can complete the density variation microwave detection of the sheet cigarette smoke box of more points sampling, it is possible to increase
Degree of accuracy.The detection device of this more pinpoint accuracy and detection method thereof are also in the protection of the present invention
In the range of.Accordingly, it is intended to be construed to appending claims comprise to fall the guarantor in the present invention
All these changes, displacement and various replacement equivalent within the scope of protecting.
Claims (6)
1. a sheet cigarette smoke box density variation detecting system, it is characterised in that: include data acquisition
Unit and data analysis unit, the outfan of described data acquisition unit and described data analysis list
The input of unit connects；Described data acquisition unit includes:
Support for installing component；
For the photocell of induced signal, described photocell has three, is uniformly arranged on described
The top central authorities of support, are No. 1 photocell, No. 2 photocells and No. 3 photocells, institute respectively
State the width less than smoke box of the distance between No. 1 photocell and No. 3 photocells；
Microwave transmitting probe and microwave receiving probe for detection；
For respectively movable arrange described microwave transmitting probe and the upper rail of microwave receiving probe and
Lower guideway, described upper rail and lower guideway be separately positioned on the upper and lower side of described support, and smoke box is defeated
Send track between described upper rail and lower guideway, described upper rail and/or the two ends of lower guideway
It is respectively equipped with two limit switches；
For making the microwave transmitting probe on described upper rail and the microwave receiving on described lower guideway
Probe can produce the described upper rail of connection and the connecting rod of lower guideway of linkage；
For transmitting the programmable logic controller (PLC) of photocell induced signal；
For providing the servomotor of power, it is connected with one end of described connecting rod；With
For the industrial computer controlled.
2. sheet cigarette smoke box density variation detecting system as claimed in claim 1, its feature exists
In: the microwave irradiation power of described microwave transmitting probe is 5～7 milliwatts.
3. one kind utilizes sheet cigarette smoke box density variation detecting system detection lug as claimed in claim 1
The method of cigarette smoke box density variation, it is characterised in that: comprise the following steps:
Sheet cigarette smoke box passes through delivery track uniform motion, after photocell detection to sheet cigarette smoke box arrives
Send enabling signal by programmable logic controller (PLC) to servomotor, start servomotor, watch
Take motor and reach a fixed speed in moment, drive described Microwave emission by described connecting rod
Probe and microwave receiving probe synchronize equidirectional doing respectively along described upper rail and lower guideway simultaneously
Uniform motion；
When described microwave transmitting probe, microwave receiving probe move to No. 1 position corresponding to photocell
When putting, described No. 1 photocell sends collection signal by programmable logic controller (PLC) to industrial computer
Instruction, industrial computer controls to gather out the density value of a point；
When described microwave transmitting probe, microwave receiving probe move to No. 2 positions corresponding to photocell
When putting, described No. 2 photocells send collection signal by programmable logic controller (PLC) to industrial computer
Instruction, industrial computer controls to gather out the density value of b point；
When described microwave transmitting probe, microwave receiving probe move to No. 3 positions corresponding to photocell
When putting, described No. 3 photocells send collection signal by programmable logic controller (PLC) to industrial computer
Instruction, industrial computer controls to gather out the density value of c point；
Described microwave transmitting probe and microwave receiving probe continue to move with uniform velocity until encountering guide rail
The described limit switch of side i.e. starts to turn to move with uniform velocity, when described microwave transmitting probe,
When microwave receiving probe again moves into position corresponding to No. 3 photocells, described No. 3 photocells
Sent the instruction of collection signal to industrial computer by programmable logic controller (PLC), industrial computer controls to adopt
Collect the density value of d point；
When described microwave transmitting probe, microwave receiving probe again move into No. 2 photocell correspondences
Position time, described No. 2 photocells send collection by programmable logic controller (PLC) to industrial computer
The instruction of signal, industrial computer controls to gather out the density value of e point；
When described microwave transmitting probe, microwave receiving probe again move into No. 1 photocell correspondence
Position time, described No. 1 photocell sends collection by programmable logic controller (PLC) to industrial computer
The instruction of signal, industrial computer controls to gather out the density value of f point；
Described microwave transmitting probe and microwave receiving probe continue to move with uniform velocity until encountering guide rail
The described limit switch of opposite side i.e. starts to turn to move with uniform velocity, when described Microwave emission is visited
When head, microwave receiving probe again moves into position corresponding to No. 1 photocell, described No. 1 light
Fulgurite sends the instruction of collection signal, industrial computer control by programmable logic controller (PLC) to industrial computer
System gathers out the density value of g point；
When described microwave transmitting probe, microwave receiving probe again move into No. 2 photocell correspondences
Position time, described No. 2 photocells send collection by programmable logic controller (PLC) to industrial computer
The instruction of signal, industrial computer controls to gather out the density value of h point；
When described microwave transmitting probe, microwave receiving probe again move into No. 3 photocell correspondences
Position time, described No. 3 photocells send collection by programmable logic controller (PLC) to industrial computer
The instruction of signal, industrial computer controls to gather out the density value of i point；
Then the density value of above-mentioned 9 samplings is analyzed by described data analysis unit
The density variation of slice cigarette smoke box, the density variation of the sheet cigarette smoke box thus completing 9 samplings is micro-
Ripple detects.
4. the method for detection lug cigarette smoke box density variation as claimed in claim 3, its feature exists
In: described cigarette smoke box from initially entering detection zone to the time used by fully out detection zone is
4～6 seconds, described microwave transmitting probe and the microwave receiving probe detection time in each site were few
In or equal to 0.1 second, described microwave transmitting probe and microwave receiving were popped one's head at two ends limit switch
Between motion time be 1.3～2 seconds.
5. the method for the detection lug cigarette smoke box density variation as described in claim 3 or 4, it is special
Levy and be: the microwave irradiation power of described microwave transmitting probe is 5～7 milliwatts.
6. the method for detection lug cigarette smoke box density variation as claimed in claim 5, its feature exists
In: the microwave irradiation power of described microwave transmitting probe is 6 milliwatts.
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| CN201410143322.1A CN103900932B (en) | 2014-04-10 | 2014-04-10 | A kind of sheet cigarette smoke box density variation detecting system and detection method thereof |
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| CN201410143322.1A CN103900932B (en) | 2014-04-10 | 2014-04-10 | A kind of sheet cigarette smoke box density variation detecting system and detection method thereof |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105800311B (en) * | 2016-05-04 | 2024-08-02 | 上海凯思尔电子有限公司 | Automatic AOI plate retracting and releasing machine for PCB production equipment |
| CN106323808A (en) * | 2016-08-31 | 2017-01-11 | 上海创和亿电子科技发展有限公司 | System and method for detecting density in due time on basis of microwave moisture meter |
| CN112683730A (en) * | 2021-01-22 | 2021-04-20 | 江苏中烟工业有限责任公司 | Method and device for establishing in-box tobacco lamina density prediction model based on theoretical density value |
| CN112730148A (en) * | 2021-01-22 | 2021-04-30 | 江苏中烟工业有限责任公司 | In-box lamina density prediction model establishing method and device based on nine-hole sampling method |
| CN112683927A (en) * | 2021-01-22 | 2021-04-20 | 江苏中烟工业有限责任公司 | Method and device for representing density deviation rate of tobacco flakes in zoning box |
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| CN103900932A (en) | 2014-07-02 |
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