CN109798836A - A kind of negative-pressure adsorption-type master bar bore diameter measuring method - Google Patents
A kind of negative-pressure adsorption-type master bar bore diameter measuring method Download PDFInfo
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- CN109798836A CN109798836A CN201910144701.5A CN201910144701A CN109798836A CN 109798836 A CN109798836 A CN 109798836A CN 201910144701 A CN201910144701 A CN 201910144701A CN 109798836 A CN109798836 A CN 109798836A
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Abstract
The invention discloses a kind of negative-pressure adsorption-type master bar bore diameter measuring methods, including step S1: providing measuring device, including light source emitter, negative pressure cylinder, CCD camera；Negative pressure cylinder, which is equipped with, is parallel to its axis, cylindrical inner hole, and the surface of inner hole is equipped with the multiple vacuum outlets being sequentially distributed along the vertical direction；S2: selecting the scaling board for being carved with different size circles to be calibrated, and S3: removing scaling board, the negative pressure air not less than -60kPa is accessed vacuum outlet, the collimated light beam that light source emitter issues forms more bright circular hole in CCD camera；S4: analysis processing calculates separately out multiple diameters to gaging hole, the average of multiple diameter values is master bar aperture.The present invention realizes the measurement in its aperture by acquiring 10 capillary images of master bar, has the characteristics that non-contact, accuracy is high, efficiency is fast, automatization level is strong.
Description
Technical field
The invention belongs to cigarette standard component physical parameters measurement technical fields, and in particular to a kind of view-based access control model projection is born
Press absorption type resistance to suction negative-pressure adsorption-type master bar bore diameter measuring method.
Background technique
Resistance to suction is the important physical index of cigarette, is not only closely related with aesthetic quality, and tar, cigarette are also directly affected
The chemical parameters burst size such as alkali, carbon monoxide.Resistance to suction is measured generally by cigarette and filter stick physical property combined test stand
It arrives.Resistance to suction master bar is cigarette and the matching used standard component of filter stick physical property combined test stand, to guarantee resistance to suction measurement
Accuracy and reliability need to be calibrated and be verified to cigarette and filter stick physical property combined test stand using resistance to suction master bar.
Accurate magnitude is passed to cigarette and filter stick combined test stand by resistance to suction master bar, and cigarette and filter stick combined test stand are again
By transmission of quantity value to cigarette, resistance to suction master bar magnitude it is accurate whether directly decide the reliability of Cigarette Draw Resistance measurement result.
It is (1 ~ 4) kPa that resistance to suction master bar, which often uses magnitude, and the resistance to suction master bar structure of different magnitudes is generally identical, and difference is 10
Capillary pore size.Resistance to suction master bar aperture and pressure drop have direct relation, with the continuous increase in aperture, resistance to suction master bar
Pressure drop constantly reduces.In resistance to suction master bar process of manufacture, resistance to suction master bar capillary pore size need to be effectively controlled.
The conventional method in measurement capillary aperture is weight method and primary and secondary rule method.Weight method need to accurately obtain capillary material
Density, primary and secondary rule method need to develop matched high-precision primary and secondary rule, and two methods there are accuracy not high, low efficiency, labour are strong
The disadvantages of degree is big, Automated water adjustment.Resistance to suction master bar is made of specific glass material, embeds 10 capillaries, and structure is special
Very, it can not directly apply weight method and primary and secondary rule method carries out inside diameter measurement.Therefore, it is necessary to develop a set of accuracy height, speed
Fastly, the good resistance to suction master bar aperture measurement device of intelligent level, and establish corresponding measurement method.
Summary of the invention
Based on the deficiencies of the prior art, the purpose of the present invention is to provide a kind of negative-pressure adsorption-type negative-pressure adsorption-type master bars
Bore diameter measuring method.
To achieve the goals above, using following technical scheme.
A kind of negative-pressure adsorption-type master bar bore diameter measuring method, comprising the following steps:
S1: providing a kind of negative-pressure adsorption-type master bar aperture measurement device, including set gradually light source emitter, negative pressure cylinder,
CCD camera and pedestal；The negative pressure cylinder is vertically arranged, and negative pressure cylinder, which is equipped with, is parallel to its axis, cylindrical inner hole, described
The lower end of inner hole is equipped with dianegative, and the surface of inner hole is equipped with the multiple vacuum outlets being sequentially distributed along the vertical direction；It is described
Negative pressure cylinder is equipped with negative port, and described negative port one end is connected with negative pressure source, and the other end is connected with vacuum outlet；Institute
It states and is fixed with column on pedestal, the column middle section is connected with bracket, and top is connected with crossbeam；The negative pressure cylinder is fixed on branch
Frame end, the light source emitter are placed in pedestal upper surface, and the CCD camera is suspended in crossbeam tail end, CCD camera and camera lens
Cooperated by screw thread.
S2: selecting the scaling board for being carved with different size circles to calibrate negative-pressure adsorption-type master bar aperture measurement device,
Scaling board is placed on negative pressure cylinder inner hole, the power switch of light source emitter and CCD camera, rotating lens, to CCD phase are opened
Machine acquired image is handled, and different physical sizes corresponding image pixel number under different enlargement ratios is obtained；
S3: removing scaling board, and swing bolster makes CCD camera far from above negative pressure cylinder, master bar is inserted into negative pressure cylinder inner hole, it is ensured that
Master bar bottom and dianegative completely attach to, then swing bolster returns to CCD camera above negative pressure cylinder, and CCD camera is located at mark
Right above quasi- stick；Negative pressure air not less than -60kPa is accessed into negative port, master bar can be observed and be adsorbed on inner hole rapidly
Side, realize master bar preferably verticality；The collimated light beam that light source emitter issues passes through standard through dianegative
Stick capilar bore forms more bright circular hole in CCD camera；
S4: rotating lens, make CCD camera acquire image clearly be illustrated, CCD camera by data collecting card by image transmitting extremely
Computer is analyzed and processed, and calculates separately out multiple diameters to gaging hole, and the average of multiple diameter values is master bar hole
Diameter.
The CCD camera is planar array scanning formula, and its resolution ratio is at least 8,000,000 pixels.
The light that the light source emitter is emitted is parallel surface light.
The vacuum outlet quantity is 3, and diameter is not less than 4mm.
Minimum-the 60kPa of negative pressure air vacuum degree that the negative pressure source is inputted to negative port.
The crossbeam and column are rotatablely connected, and can realize 360 degree rotation along column.
The measurement method uses the negative-pressure adsorption-type measurement method of view-based access control model projection, by the inner hole on negative pressure cylinder
Vacuum outlet generates negative pressure and adsorbs to master bar, when master bar guarantees its measurement under the action of gravity and negative-pressure sucking
Verticality identifies the measurement for realizing resistance to suction master bar aperture by CCD camera characteristics of image, with non-contact, accuracy is high, effect
The features such as rate is fast, automatization level is strong.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment；
Fig. 2 is negative pressure cylinder bottom surface partial schematic diagram；
Fig. 3 is negative pressure cylinder diagrammatic cross-section；
Fig. 4 is resistance to suction master bar schematic diagram；
Fig. 5 is Image Acquisition schematic diagram；
In figure: 1, pedestal, 2, column, 3, bracket, 4, crossbeam, 5, negative pressure cylinder, 6, negative pressure cylinder upper surface, 7, inner hole, 8, resistance to suction mark
Quasi- stick, 9, light source emitter, 10, CCD camera, 11, camera lens, 12, negative port, 13, negative pressure cylinder lower end surface, 14, dianegative,
15, vacuum outlet, 16, resistance to suction master bar side end face, 17, capilar bore, 18, resistance to suction master bar lower end surface, 19, resistance to suction master bar
Upper surface, 20, to gaging hole, 21, bright area, 22, grey dark space.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily.
Please refer to Fig. 1.Structure, ratio, size depicted in this specification institute attached drawing etc., only to cooperate specification institute
The content of announcement is not intended to limit the invention enforceable qualifications so that those skilled in the art understands and reads,
Therefore not having technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing this hair
Under bright the effect of can be generated and the purpose that can reach, the model that disclosed technology contents can be covered should all be still fallen in
In enclosing.Meanwhile cited such as "upper" in this specification, "lower", "left", "right", " centre " and " one " term, be also only
Convenient for being illustrated for narration, rather than to limit the scope of the invention, relativeness is altered or modified, in no essence
It changes under technology contents, when being also considered as the enforceable scope of the present invention.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of negative-pressure adsorption-type master bar aperture measurement device, including it is pedestal 1, column 2, negative
Pressure cylinder 5, light source emitter 9, CCD camera 10, inner hole 7, negative port 12, dianegative 14, vacuum outlet 15, resistance to suction master bar
8, column 2 is fixed on the pedestal 1, and 2 middle section of column is connected with bracket 3, top is connected with crossbeam 4, the negative pressure cylinder 5
It is fixed on 3 end of bracket, the light source emitter 9 is placed in above pedestal 1, and the CCD camera 10 is suspended in 4 tail end of crossbeam,
CCD camera 10 and camera lens 11 are by being screwed cooperation, and the inner hole 7 is through 5 upper surface 6 of negative pressure cylinder and 5 lower end of negative pressure cylinder
13 center of face, the negative port 12 pass through the through inner hole 7 in 5 side of negative pressure cylinder, and the dianegative 14 is located at 7 bottom of inner hole,
The vacuum outlet 15 is located on 7 side of inner hole, and communicates with 12 gas circuit of negative port, and vacuum outlet 15 is in axial direction same
Arranged in a straight line, the resistance to suction master bar 8 is inserted into inner hole 7, and is located above dianegative 14.
As shown in figure 4, resistance to suction master bar 8 be cylindrical structure, including resistance to suction master bar side end face 16, resistance to suction master bar into
Gas end face 18, resistance to suction master bar outlet end face 19.Capilar bore 17 is through resistance to suction master bar air inlet end face 18 and resistance to suction standard
Between stick outlet end face 19,17 quantity of capilar bore is 10.Negative-pressure adsorption-type master bar aperture measurement device of the invention
It can be used for measuring the aperture of ventilation rate master bar.
As shown in figure 5,10 acquired image of CCD camera is broadly divided into gaging hole 20, bright area 21, grey dark space 22 etc. 3
A region.Enhancing processing is carried out to acquired image first, noise is removed using gaussian filtering, setting threshold value carries out binaryzation
Processing treats gaging hole 20 and carries out edge extracting and micronization processes, after image segmentation, goes out with interpolation calculation to the straight of gaging hole 20
Diameter.
The CCD camera 10 is planar array scanning formula, and is not less than 8,000,000 pixels.
The light source emitter 9 can launch parallel surface light.
15 quantity of vacuum outlet is 3, and diameter is not less than 4mm.
The negative pressure air vacuum degree that the negative port 12 accesses is not less than -60kPa.
The dianegative 14 is colorless and transparent.
The crossbeam 4 can realize 360 degree rotation along column 2.
7 diameter of inner hole is micro- to be greater than 8 diameter of resistance to suction master bar.
8 pore size measurements of resistance to suction master bar are the average value of 10 aperture collection values.
A kind of negative-pressure adsorption-type negative-pressure adsorption-type master bar bore diameter measuring method, comprising the following steps:
S1: selecting the scaling board for being carved with different size circles to calibrate measuring device, be placed on 5 inner hole 7 of negative pressure cylinder,
Open the power switch of light source emitter 9 and CCD camera 10, rotating lens 11, at 10 acquired image of CCD camera
Reason, obtains different physical sizes corresponding image pixel number under different enlargement ratios；
S2: removing scaling board, and swing bolster 4 makes CCD camera 10 far from 5 top of negative pressure cylinder, resistance to suction master bar 8 is inserted into negative pressure cylinder
5 inner holes 7, it is ensured that 8 bottom of resistance to suction master bar and dianegative 14 completely attach to, then swing bolster 4 makes CCD camera 10 return to negative pressure
5 top of cylinder, CCD camera 10 are located at right above resistance to suction master bar 8；Negative pressure air not less than -60kPa is accessed into negative port
12, the side that resistance to suction master bar 8 is adsorbed on rapidly inner hole 7 can be observed, realize the preferably verticality of resistance to suction master bar 8；Light source
The collimated light beam that transmitter 9 issues passes through 8 capilar bore 17 of resistance to suction master bar, in CCD camera 10 through dianegative 14
Form 10 more bright circular holes.
S3: rotating lens 11, the image clearly for acquiring CCD camera 10 are illustrated, and CCD camera 10 will by data collecting card
Image transmitting to computer is analyzed and processed；Enhancing processing is carried out to acquired image first, is removed using gaussian filtering
Noise, setting threshold value carry out binary conversion treatment, treat gaging hole 20 and carry out edge extracting and micronization processes, after image segmentation, use
Interpolation method calculates separately out 10 diameters to gaging hole 20, and the average of 10 diameter values is resistance to suction master bar aperture.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (7)
1. a kind of negative-pressure adsorption-type master bar bore diameter measuring method, which comprises the following steps:
S1: providing a kind of negative-pressure adsorption-type master bar aperture measurement device, including set gradually light source emitter, negative pressure cylinder,
CCD camera；The negative pressure cylinder is vertically arranged, and negative pressure cylinder, which is equipped with, is parallel to its axis, cylindrical inner hole, under the inner hole
End is equipped with dianegative, and the surface of inner hole is equipped with the multiple vacuum outlets being sequentially distributed along the vertical direction；On the negative pressure cylinder
Equipped with negative port, described negative port one end is connected with negative pressure source, and the other end is connected with vacuum outlet；
S2: it selects the scaling board for being carved with different size circles to calibrate negative-pressure adsorption-type master bar aperture measurement device, will mark
Fixed board is placed on negative pressure cylinder inner hole, opens the power switch of light source emitter and CCD camera, and rotating lens adopts CCD camera
The image collected is handled, and different physical sizes corresponding image pixel number under different enlargement ratios is obtained；
S3: removing scaling board, and swing bolster makes CCD camera far from above negative pressure cylinder, master bar is inserted into negative pressure cylinder inner hole, it is ensured that
Master bar bottom and dianegative completely attach to, then swing bolster returns to CCD camera above negative pressure cylinder, and CCD camera is located at mark
Right above quasi- stick；Negative pressure air not less than -60kPa is accessed into negative port, master bar can be observed and be adsorbed on inner hole rapidly
Side, realize master bar preferably verticality；The collimated light beam that light source emitter issues passes through standard through dianegative
Stick capilar bore forms more bright circular hole in CCD camera；
S4: rotating lens, make CCD camera acquire image clearly be illustrated, CCD camera by data collecting card by image transmitting extremely
Computer is analyzed and processed, and calculates separately out multiple diameters to gaging hole, and the average of multiple diameter values is master bar hole
Diameter.
2. negative-pressure adsorption-type master bar bore diameter measuring method according to claim 1, it is characterised in that: the negative-pressure adsorption in S1
Formula master bar aperture measurement device further includes pedestal, and column is fixed on the pedestal, and the column middle section is connected with bracket,
Top is connected with crossbeam；The negative pressure cylinder is fixed on stent ends, and the light source emitter is placed in pedestal upper surface, described
CCD camera is suspended in crossbeam tail end, CCD camera and camera lens and is cooperated by screw thread.
3. negative-pressure adsorption-type master bar bore diameter measuring method according to claim 2, it is characterised in that: the CCD camera is
Planar array scanning formula, and its resolution ratio is at least 8,000,000 pixels.
4. negative-pressure adsorption-type master bar bore diameter measuring method according to claim 3, it is characterised in that: the light source emitter
The light emitted is parallel surface light.
5. negative-pressure adsorption-type master bar bore diameter measuring method according to claim 1, it is characterised in that: the vacuum outlet number
Amount is 3, and diameter is not less than 4mm.
6. negative-pressure adsorption-type master bar bore diameter measuring method according to claim 1, it is characterised in that: the negative pressure source is to negative
Crimp the minimum -60kPa of negative pressure air vacuum degree of mouth input.
7. negative-pressure adsorption-type master bar bore diameter measuring method according to claim 2, it is characterised in that: the crossbeam and column
Rotation connection can realize 360 degree rotation along column.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910144701.5A CN109798836A (en) | 2019-02-27 | 2019-02-27 | A kind of negative-pressure adsorption-type master bar bore diameter measuring method |
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| CN201910144701.5A CN109798836A (en) | 2019-02-27 | 2019-02-27 | A kind of negative-pressure adsorption-type master bar bore diameter measuring method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797920A (en) * | 2019-11-13 | 2021-05-14 | 中国航发南方工业有限公司 | Blade small micropore angle measuring method |
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| CN203711126U (en) * | 2014-03-07 | 2014-07-16 | 上海太太乐食品有限公司 | Novel mixture grinding system |
| CN208419904U (en) * | 2018-05-17 | 2019-01-22 | 广东省智能制造研究所 | A kind of aperture measurement device and measuring device |
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Patent Citations (7)
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| US5933231A (en) * | 1996-07-10 | 1999-08-03 | Industrial Technology Institute | Method and system for measuring cavities and probe for use therein |
| CN1407314A (en) * | 2001-08-29 | 2003-04-02 | 株式会社东京精密 | Inner diameter measurement method and device |
| CN1982842A (en) * | 2005-12-17 | 2007-06-20 | 比亚迪股份有限公司 | Flatness measuring device |
| CN201540101U (en) * | 2009-11-25 | 2010-08-04 | 北京欧美利华科技有限公司 | Device for measuring length and circumference of cigarette and filter stick |
| CN201876244U (en) * | 2010-11-22 | 2011-06-22 | 四川辉煌测控设备有限公司 | Intelligent inner hole measurer for wire production dies |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112797920A (en) * | 2019-11-13 | 2021-05-14 | 中国航发南方工业有限公司 | Blade small micropore angle measuring method |
| CN112797920B (en) * | 2019-11-13 | 2024-05-03 | 中国航发南方工业有限公司 | Blade micro-pore angle measurement method |
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Application publication date: 20190524 |