CN105890526A - Micro sheet-shaped particle sampling device capable of layered buffering - Google Patents
Micro sheet-shaped particle sampling device capable of layered buffering Download PDFInfo
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- CN105890526A CN105890526A CN201410469476.XA CN201410469476A CN105890526A CN 105890526 A CN105890526 A CN 105890526A CN 201410469476 A CN201410469476 A CN 201410469476A CN 105890526 A CN105890526 A CN 105890526A
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Abstract
The invention provides a micro sheet-shaped particle sampling device with a layered buffering feature, and the collector is used for image measurement. The sampling device in a modularized design method comprises a particle sampling plate, a calibration plate fixing plate and a sampling plate fixing pedestal, wherein the particle sampling plate is fit to the calibration plate fixing plate via fixation holes, and then mounted on the sampling plate fixing pedestal. Sheet-shaped particles falls into the sampling device through a charging block in the particle sampling plate, buffering, anti-stacking dispersion and direction of falling of the particles are controlled via the inclination angle of the particle charging block, screening column area and inclined sides of a trapezoidal groove, an image sensor collects the thickness of particles and an image of a calibration plate, air is supplied inwardly in the position of the particle charging block so that particles on a particle bearing block are blown two outlet areas at the two sides, particles blown out fall into a material receiving box via a hollow area in the sampling plate fixing pedestal, and thus, the particles are sampled and discharged.
Description
Technical field
The invention belongs to the technical field of particle shape parameter measurement, particularly relate to the micro-of a kind of layered buffer
Small pieces sampling apparatus.
Background technology
Particle shape information can describe the visual condition of granule, be affect granular materials performance and physics thereof,
The important indicator parameter of chemical characteristic.Particle shape parameter is carried out high accuracy and automatic measurement, at food
The industries such as processing, commercial production, biological medicine have important applied research and are worth and economic worth.Therefore,
Improve the efficiency of particle shape parameter measurement, the most just can effectively promote it and evaluate and production efficiency.
Shape information for small sheet-like particle is measured, and has been developed in many measuring methods and measuring instrument at present
Device.Wherein, traditional method is to use micrometer to measure by manual type, the efficiency of this method
Low and be difficult to ensure that certainty of measurement.Laser measurement method can improve the accuracy of measurement, but special at some
Determining in applied environment, laser irradiates the attribute that may change granular materials；And for containing energy granular materials,
Laser irradiates the disaster being also possible to cause fire even to cause blast.Image measuring method is then by noncontact side
Formula represents the shape information of granule, and certainty of measurement is high, easy to operate and granule itself will not be caused any shadow
Ring, be a kind of ideal particle shape measurement method of parameters.Image measuring method also can be particle shape
The automatic measurement of parameter provides good technological means.
For sheet-like particle, under the observation condition of imageing sensor, it is possible to the two dimension easily obtaining granule is put down
Face projection image information, its thickness information then relative difficult obtains.Existing solution is to use oblique projection
Method, adjusts the optical microscopic image sensor observation angle of granule, calculates the thickness of granule in conjunction with projective transformation
Degree, but this method is easily subject to the impact of the factors such as micro-image sensor amplification, resolving power, difficult
To carry out self-adaptative adjustment, and inconvenient operation.It addition, during the measurement of particle shape parameter, by
In granule in lower backwardness, spring can be formed on the contact surface fallen into, thus cause and be difficult to control to granule drop point
A difficult problem, be i.e. difficult to control to granule and effectively automatically fall into image sensor field of view scope.For solving expeditiously
Certainly grain thickness based on image measurement measures problem, and the present invention proposes a kind of new small sheet-like particle and adopts
Sampling device.This device can realize the on-line automatic sampling of granule, drop point controls and anti-stacking, it is possible to for granule
The image measurement of thickness sets up good Image-capturing platform.
Summary of the invention
Present invention aim to address the sampling of small sheet-like particle in thickness measurement technique based on graphical analysis
Problem, it is proposed that a kind of towards image measurement and the small sheet-like particle sampling apparatus with layered buffer characteristic.
This device uses modularized design, it is possible to for the image acquisition visual field that the thickness measure offer of sheet-like particle is good.
For achieving the above object, the technical scheme schematic diagram of present invention design is as shown in Figure 1.The mould invented
Massing sampling apparatus includes three modules, is that granule sampling plate, scaling board fixed plate and sampling plate are fixed respectively
Pedestal.Granule sampling plate realizes the charging of granule, sub-sieve, buffers, samples and discharging functions；Scaling board is solid
Determining plate to fix for the installation of scaling board, measuring for grain thickness provides reference information；Sampling plate fixed pedestal
For fixing granule sampling plate, device is made to keep stable.
Described modularity sampling apparatus is scaling board fixed plate and granule sampling plate to be pacified by fixing hole veneer
It is fitted together, then the module board of laminating is arranged on sampling plate fixed pedestal.
Described granule sampling plate uses combinative structure, relate to granule sampling substrate, particulate charge block,
Granule sub-sieve post district, granule accept block, block block, adapting table, fixing hole and enter, exit region.Its
In, granule is accepted block and blocks block employing optical glass material, and granule sub-sieve post uses rustless steel cylinder material,
Remaining structure uses pmma material.
Described scaling board fixed plate uses concave structure, relate to scaling board substrate, scaling board draw-in groove,
Scaling board and fixing hole, wherein scaling board is optical glass material, and remaining uses pmma material.
Described sampling plate fixed pedestal uses notching construction, relate to pedestal, draw-in groove, fixed support,
Hollow area and splicing case.Pedestal and fixed support use stainless steel material, and splicing case uses plastic material.
Described layered buffer characteristic refers to that the particulate charge block that granule falls in sampling plate realizes ground floor and delays
Punching, realizes the second layer by the two-layer cylindrical arrangement structure in sub-sieve post district and buffers, and reduces energy when granule declines
Amount, and control, by tilting trough rim, the direction that granule falls into so that granule can drop down onto granule as much as possible and accept
On block.
Accompanying drawing explanation
Fig. 1 is the technical scheme schematic diagram of small sheet-like particle sampling apparatus.
Fig. 2 is the sampling plate structure chart of small sheet-like particle.
Fig. 3 is the scaling board fixed plate structure figure of small sheet-like particle.
Fig. 4 is the sampling plate fixed pedestal structure chart of small sheet-like particle.
Detailed description of the invention
The sample objects of the present invention is small sheet-like particle, and its thickness distribution is in the range of 0.2～0.5mm.
When granule is in time falling in the air, can form spring reaction on the contact surface fallen into, this results in and is difficult to control to
Granule falls in the field range of imageing sensor.When multiple granules fall into simultaneously, it is also possible to form granule
Between be stacked with, this result in follow-up be difficult to intergranular image segmentation, affect image measurement
Precision.For solving the difficult problem that grain thickness is measured, the sampling apparatus invented is capable of oneself of multiple granule
Dynamicization gathers, and realizes granule by layered buffer structure and fall into effective control in region, acquisition particle image
After can clean out sampling apparatus easily, in order to carry out next batch grain thickness measure.For reaching this
Target, have employed modular design method, devises granule sampling plate, scaling board fixed plate and sampling plate solid
Determining three modules of pedestal, module combination is to be fitted with scaling board fixed plate, so by granule sampling plate
After be arranged on again on sampling plate fixed pedestal, thus be configured to whole sampling apparatus.
For granule sampling plate, its structural representation is as in figure 2 it is shown, its detailed description of the invention is:
(1) select one piece of larger-size rectangle lucite as granule sampling substrate, adoptable reference
Size be a length of 100mm, a width of 80mm, thickness be 4.5mm.
(2) on the centre of sampling substrate, be connected to a U-shaped skewed slot, this groove as particulate charge block with adopt
Become 60 degree of angles between sample is basic, control falling into direction and slowing down the energy that granule falls into of granule, it is achieved first
The granule of layer falls into buffering, and this feed block is particle entrance region, reference scale with the junction of sampling substrate
Very little for 18mm.
(3) carry out in the centre position of sampling substrate draw every, plucking out a thickness in front is the trapezoidal recessed of 1.5mm
Groove and rectangular recess.Trapezoidal groove is connected with particle entrance region, and lateral tilting hypotenuse can control falling of granule
Entering direction, inclined side can adjust according to practical situation with the angle of horizontal plane, and representative value is 60 degree.Trapezoidal
The top of groove embeds two row's granule sub-sieve rustless steel cylinders, and upper row has 6 cylinders, lower row to have 5 cylinders,
Form sub-sieve post district, it is achieved the granule of the second layer falls into buffering.A diameter of 1mm of cylinder, horizontal interval is
2mm, perpendicular separation is 3mm.Lower section in rectangular recess retains an adapting table, will be based on thickness
1.5mm, the length of side are that the quadratic optical glass particle undertaking block of 8mm is placed on this adapting table.Hold at granule
Connecing the surrounding of block and form the particle outlet region of sky, the opening reference length of this exit region is 14mm, i.e.
Grain accepts the spatial domain having 3mm about block.
(4) carry out in the centre position of sampling substrate draw every, plucking out a thickness in dashed region overleaf is
The rectangular recess of 3mm, length × a width of 30mm × 20mm；Again the optical glass of same size is embedded in this
Position, this optical glass is as shutter, for measuring the noiseless printing opacity background of grain thickness image.
(5) holing on the both sides of sampling substrate, forming reference diameter is 2mm fixing hole.
For scaling board fixed plate, its structural representation is as it is shown on figure 3, its detailed description of the invention is:
(1) the rectangle lucite that one piece of size of selection is slightly smaller is as scaling board substrate, adoptable reference scale
Very little be a length of 60mm, a width of 35mm, thickness be 7mm.
(2) centre position at scaling board substrate plucks out a region, forms spill notch, is scaling board
Draw-in groove, a length of 50mm of this draw-in groove, a width of 25mm, thickness is 3mm.Scaling board a size of 50mm × 50mm
Square, thickness is 3mm, the square black and white block a size of 0.5mm × 0.5mm in scaling board.Demarcate
Plate is positioned in this draw-in groove, a length of 5mm of draw-in groove ledge of fixing scaling board,
(3) holing on the both sides of scaling board substrate, forming reference diameter is 2mm fixing hole.The position of this fixing hole
Fixing hole position in putting and sampling substantially keeps always, it is simple to laminating between the two is fixed.
(4) the dotted line tab area in scaling board fixed plate represents and blocks block region in sampling substrate, i.e. works as mark
Determine plate fixed plate and time sampling substrate fits together, the granule sample area in the range of image sensor field of view
For optical glass, to guarantee translucent effect.
For sampling plate fixed pedestal, as shown in Figure 4, its detailed description of the invention is in its structural representation:
(1) selecting a square rustless steel of block length is a length of as sampling plate fixed pedestal, adoptable reference dimension
100mm, a width of 20mm, thickness are 15mm.This fixed pedestal is placed on the fixed support on both sides.Gu
The form of fixed rack and size can according to circumstances be adjusted flexibly, and can reach the purpose of fixed sample device,
It is the strip structure of 15mm typically with width, and is fixed with this pedestal by screw.
(2) slotting in the middle of sampling plate fixed pedestal, the width of this groove is 4.5mm, and the degree of depth is 10mm,
Granule sampling plate is i.e. fixed in this groove.
(3) centre in groove plucks out a hollow area, a length of 14mm in this hollow area, a width of 4.5mm, and
Splicing case is placed in the lower section of hollow area.This splicing case just can collect measurement when meeting not less than hollow area size
After granule.
Above three block combiner is formed complete small sheet-like particle sampling apparatus, i.e. uses screw general
Grain sampling plate is fit together by fixing hole with scaling board fixed plate, is then fitted into sampling plate fixed pedestal
On.On this basis, the sampling flow process of small sheet-like particle is:
(1) sheet-like particle feed block from granule sampling plate falls into sampling apparatus, by inclining of particulate charge block
Rake angle and sub-sieve post district realize the buffering that granule falls into, and are disperseed by the multiple granules fallen into by sub-sieve post district
Open to prevent stacking, and fall into direction by dovetail groove hypotenuse control granule so that granule can be scattered in granule
Accept on block.
(2) imageing sensor gathers grain thickness image, its field range include accepting the particle region on block and
Part scaling board region.
(3) after the thickness image acquisition of granule is complete, using wind to send mode, the big I of its wind-force is according to actual feelings
Condition is adjusted, and inwardly blows at particulate charge block, granule is accepted the granule on block and blows to going out of both sides
Port area.
It is (4) corresponding with the hollow area on sampling plate fixed pedestal due to the exit region on sampling plate, then, fall
Under granule will fall into splicing case from this hollow area, now, the most complete granule sampling and discharging process
Terminate, granule sampling next time can be carried out.
Claims (3)
1. the small sheet-like particle sampling apparatus of a layered buffer, it is characterised in that utilize modularized design
Method devises granule sampling plate, scaling board fixed plate and three modules of sampling plate fixed pedestal.Will during assembling
Granule sampling plate is fitted by fixing hole with scaling board fixed plate, then is arranged on sampling plate fixed pedestal.
Granule sampling plate realizes the charging of granule, sub-sieve, buffers, samples and discharging functions；Scaling board fixed plate is used
Installation in scaling board is fixed, and measuring for grain thickness provides reference information；Sampling plate fixed pedestal is for solid
Determining granule sampling plate, holding means is stable.
2. according to the small sheet-like particle sampling apparatus of a kind of layered buffer described in letter of authorization, it is characterised in that
Angle of inclination and sub-sieve post district by particulate charge block achieve the layered buffer that granule falls into, and pass through sub-sieve
Post district achieves multiple granules of falling into of dispersion to prevent stacking, and achieves granule by dovetail groove hypotenuse and fall
Enter the control in direction, complete the automatic sampling of granule.
3. according to the small sheet-like particle sampling apparatus of a kind of layered buffer described in letter of authorization, it is characterised in that
Use wind to send mode, granule is accepted the granule on block and blows to the exit region on both sides, and solid by sampling plate
The granule of blowout is fallen into splicing case by the hollow area determined on pedestal, completes the discharging of granule.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410469476.XA CN105890526B (en) | 2014-09-09 | 2014-09-09 | A kind of small sheet-like particle sampling apparatus of layered buffer |
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| CN201410469476.XA CN105890526B (en) | 2014-09-09 | 2014-09-09 | A kind of small sheet-like particle sampling apparatus of layered buffer |
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| CN105890526A true CN105890526A (en) | 2016-08-24 |
| CN105890526B CN105890526B (en) | 2018-11-02 |
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Citations (7)
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|---|---|---|---|---|
| SU1516003A3 (en) * | 1986-03-17 | 1989-10-15 | Юоп Инк (Фирма) | Method of conveying solid material particles for catalyst systems |
| CN201583435U (en) * | 2009-12-23 | 2010-09-15 | 中国科学院大连化学物理研究所 | PM10 particle impact type single-stage sampler |
| CN102175486A (en) * | 2010-12-31 | 2011-09-07 | 中国航天科技集团公司第五研究院第五一○研究所 | Method and structure for collecting tiny dust particles |
| CN102305725A (en) * | 2011-05-18 | 2012-01-04 | 中国科学院长春光学精密机械与物理研究所 | Device for sampling solid particle samples |
| CN102854096A (en) * | 2011-07-01 | 2013-01-02 | 中国石油化工股份有限公司 | Analysis system of solid particles and method thereof |
| CN203037511U (en) * | 2013-01-28 | 2013-07-03 | 中国环境科学研究院 | Single-particle sampler with buffer cavity |
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2014
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| SU1516003A3 (en) * | 1986-03-17 | 1989-10-15 | Юоп Инк (Фирма) | Method of conveying solid material particles for catalyst systems |
| CN201583435U (en) * | 2009-12-23 | 2010-09-15 | 中国科学院大连化学物理研究所 | PM10 particle impact type single-stage sampler |
| CN102175486A (en) * | 2010-12-31 | 2011-09-07 | 中国航天科技集团公司第五研究院第五一○研究所 | Method and structure for collecting tiny dust particles |
| CN102305725A (en) * | 2011-05-18 | 2012-01-04 | 中国科学院长春光学精密机械与物理研究所 | Device for sampling solid particle samples |
| CN102854096A (en) * | 2011-07-01 | 2013-01-02 | 中国石油化工股份有限公司 | Analysis system of solid particles and method thereof |
| CN203037511U (en) * | 2013-01-28 | 2013-07-03 | 中国环境科学研究院 | Single-particle sampler with buffer cavity |
| CN203785914U (en) * | 2014-04-22 | 2014-08-20 | 陕西正大电子科技有限公司 | Particulate matter resuspension sampling device |
Non-Patent Citations (1)
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