CN106829052B - A kind of powder and granular materials based on time-controllable is according to needing feeding method - Google Patents
A kind of powder and granular materials based on time-controllable is according to needing feeding method Download PDFInfo
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- CN106829052B CN106829052B CN201710038578.XA CN201710038578A CN106829052B CN 106829052 B CN106829052 B CN 106829052B CN 201710038578 A CN201710038578 A CN 201710038578A CN 106829052 B CN106829052 B CN 106829052B
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- runner
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- feed pipe
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- vibration source
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B37/00—Supplying or feeding fluent-solid, plastic, or liquid material, or loose masses of small articles, to be packaged
- B65B37/16—Separating measured quantities from supply
- B65B37/18—Separating measured quantities from supply by weighing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B37/00—Supplying or feeding fluent-solid, plastic, or liquid material, or loose masses of small articles, to be packaged
- B65B37/04—Supplying or feeding fluent-solid, plastic, or liquid material, or loose masses of small articles, to be packaged by vibratory feeders
Abstract
The invention discloses a kind of powder based on time-controllable and granular materials according to needing feeding method, including material storage feed pipe and the mechanical mass vibration source being mounted on feed pipe, material storage feed pipe includes falred entrance runner, circle Straight runner and flaring exit runner, the inlet inside diameter of falred entrance runner upper end is designed as 15~45 millimeters, and semi-cone angle is designed as 10~15 °；Circle Straight runner internal diameter is designed as 10~30 millimeters；The exit inside diameter of flaring exit runner lower end is designed as 1~10 millimeter, and semi-cone angle is designed as 6~20 °；The total height of circle Straight runner and flaring exit runner is greater than 20 millimeters of Straight runner height of circle or more.The present invention is by optimizing key parameter and specific parameter area in entire material storage feed pipe, tens of micrograms per second can be widely used in tens of grams per second, it is the material feed that some tens of pm is formed to several mm granules by diameter, especially suitable for according to the powder distribution and selective deposition in plane that need to be quantified with accurately control.
Description
Technical field
The present invention relates to powder, the packaging process of particle, more specifically to a kind of powder based on time-controllable with
Granular materials is according to needing feeding method.
Background technique
Global manufacturing is committed to meeting society by continually developing and introducing the novel product based on various types of materials
Continuous upgrading to material life quality.Wherein, powder is widely used in every field as raw material with granular materials, such as cures
Medicine, chemical industry, biomaterial, food, metallurgy, ceramics etc..However in the art, operation relevant to granular materials to powder
Technology can not show a candle to that fluid technique is so mature with technique, caused by this is the complexity as different materials particle flow behavior.?
Controlled in high expensive raw materials industry powder and granular materials transport, distribution, the waste for being fed link and improve accuracy and
Operating efficiency is a major challenge that entire industry faces.In the 3D printing technique using powder granule as raw material, conventional method
It needs successively to form material selectivity on powder bed, will largely waste raw material among this.This is simultaneously not suitable for the cost of raw material
High industry.In order to which wasting for powder body material is controlled to minimizing the cost for reducing whole process with production in research and development,
According to need powder deposition printing can control powder printing plane in deposition and deposition path, on this basis successively at
Type.Need to accurately control powder the discharge velocity of powder using the technology.
Currently, commonly using pneumatics and volumetric method for the control of the feed of powder and granular materials.Patent
US4350049 describes particulate transportation and distribution feeding method by pneumatics in conjunction with volumetric method in nineteen eighty-two.Wherein powder
The quantitative of body is completed by pre-designed volume quantitative slot, real-time change institute shadow of the accuracy by powder packing density of particle
It rings；Need to redesign replacement dosing device if you need to change distribution inventory, this undoubtedly increases time and economic cost.Separately
Outside, equipment design is complex, has higher requirements to the internal structure of powder flowing, otherwise it is easy to appear powder blocking,
Lead to low dosage output or process stands idle.
Root the latest researches have found that, by vibrational excitation and control powder feeding technology is to powder conveyance and milligram ammonia distributes
The operating procedure of feed provides new method to use for reference.It is realized using capillary or miniature funnel and micro is transported and distributed feed
During, apply agglomeration and the arch for facilitating to destroy high viscosity powder by the vibration that pulse signal controls to powder flowing channel
Bridge effect causes powder and flows freely.Patent GB2472817, EP2467681, US2012145806, WO2011020862,
GB2014050122, WO2014111718 and open source literature Advanced Powder Technology, 6 (4) (1995) p283-
293；Advanced Powder Technology, 7 (2) (1996) p141-151；Journal of Physics D-
Applied Physics, 39 (11) (2006) p2444-2453；Powder Technol, 175 (2) (2007) p63-72；Nano
Life, 2 (2012) p1250001-1250011；International Journal of Pharmaceutics, 433 (1-2)
(2012) p34-41 etc. describes the application vibrated on powder body material Micro-feeding.
Patent GB2472817, EP2467681, US2012145806, WO2011020862, GB2014050122,
The delivery pipe such as tri- kinds of Fig. 1 a, 1b, 1c different structures is disclosed in WO2014111718, and gives relevant parameter: top
Minimum 5 millimeters in the horizontal direction of the internal diameter D (disregarding pipe thickness) of vertical component；Outlet aperture d is in the horizontal direction most
Greatly 200 microns to 3 millimeters, it is preferable that be up to 2 millimeters, most preferably, be up to 1 millimeter；Lower part cone inclined-plane and Vertical Square
To angle [alpha] at 5 degree to 45 degree.
But as at the beginning of above-mentioned patent and open source literature only exist in one for powder and granular materials feed control technology
The conceptual phase of grade, disclosed design parameter is also only a general, wide in range range, is only suitable for laboratory test, and not
It being capable of further in-depth study.
Summary of the invention
For disadvantages mentioned above existing in the prior art, the object of the present invention is to provide a kind of powders based on time-controllable
With granular materials according to feeding method is needed, based on the autofeed principle of vibrational excitation control, powder and granular material can be applied to
Expect that Micro-feeding, the particle and high viscosity powder bad especially suitable for mobility realize plane by milligram ammonia feeding operation
Interior selective deposition.
To achieve the above object, the present invention adopts the following technical scheme:
The powder and granular materials based on time-controllable are according to feeding method is needed, and using following Micro-feeding device, this is micro
Dispenser includes material storage feed pipe and the mechanical mass vibration source that is mounted on feed pipe, and material storage feed pipe includes infundibulate
Entrance channel, circle Straight runner and flaring exit runner, falred entrance runner lower end are connected on round Straight runner
End, and falred entrance runner bottom diameter is identical as circle Straight runner internal diameter, circle Straight runner lower end is connected to circular cone
Shape outlet flow upper end, and flaring exit runner upper-end inner diameter is identical as circle Straight runner internal diameter and is greater than flaring exit
The inlet inside diameter of the exit inside diameter of runner lower end, the falred entrance runner upper end is designed as 15~45 millimeters, semi-cone angle
It is designed as 10~15 °；Circle Straight runner internal diameter is designed as 10~30 millimeters；The exit inside diameter of flaring exit runner lower end is set
It is calculated as 1~10 millimeter, semi-cone angle is designed as 6~20 °；It is straight that the total height of circle Straight runner and flaring exit runner is greater than circle
20 millimeters of tubular runner height or more；
Stored up by material storage feed pipe/to corresponding powder or the material of particle, and the mechanical vibration described by control
The vibration and stopping duration in dynamic source, accurately to control the feeding coal of material.
By the way that manual switch is arranged, to control the vibration of mechanical vibration source and stop duration.
By the way that relay switch is arranged, and use the pulse signal of signal generator editor to control relay switch, into
And it controls the vibration of control mechanical vibration source and stops duration.
The inner wall surface of the circle Straight runner lower end and flaring exit runner upper end connectivity part is continuous one
Cambered surface.
The radius of curvature of the cambered surface is greater than 1.5 times of circle Straight runner internal diameter.
The material production that the material storage feed pipe is damped using light weight, low vibration.
The material storage feed pipe is made of Pyrex.
The mechanical vibration source is fixedly arranged on the outer wall of flaring exit runner by vibration source fixation member, vibration source
Fixation member includes fixing sleeve and mechanical vibration source fixing clamp, fixing sleeve by respectively with circle Straight runner, flaring exit stream
Circle Straight that road matches set and conical sleeve connect and compose, and are sheathed on round Straight runner, on flaring exit runner,
There are three mechanical vibration source stationary fixtures, is connected on the outer wall of conical sleeve in 120 ° of the circumferential arrangement in interval.
The mechanical vibration source is vibrating motor, and quantity is identical as mechanical vibration source stationary fixture, and is separately mounted to
On mechanical vibration source stationary fixture.
In the above-mentioned technical solutions, the powder and granular materials of the invention based on time-controllable is according to needing the feeding method to have
Following advantage:
1, the vibration time of mechanical vibration source is controlled by the way of manually or automatically controlling and stops duration, and is optimized
Key parameter and specific parameter area in entire material storage feed pipe can be widely used in tens of micrograms per second to every
Ten grams of number of seconds, be the material feed that some tens of pm is formed to several mm granules by diameter, especially suitable for according to need to quantify and essence
Powder distribution and the selective deposition in plane really controlled.
2, facilitate to improve powder accuracy of measurement in complicated powder body material operation link, reduce waste.
3, the selection requirements to runner material are proposed, so that runner is high-efficient to Vibration propagation；Transparent material
Pyrex runner can be convenient the powder surplus read in runner by surface volume scale.
Detailed description of the invention
Fig. 1 a~Fig. 1 c is the structural schematic diagram of three kinds of delivery pipes of the prior art respectively；
Fig. 2 is the decomposition diagram of used Micro-feeding device of the invention；
Fig. 3 is the assembling schematic diagram of material storage feed pipe and vibration source fixation member of the invention；
Fig. 4 is the cross-sectional view of material storage feed pipe of the invention；
Fig. 5 is the circuit diagram of the invention using pulse signal control feed；
Fig. 6 is the linear relationship chart of feedstock mass and time of the invention.
Specific embodiment
Technical solution of the present invention is further illustrated with reference to the accompanying drawings and examples.
Of the invention powder and granular materials based on time-controllable according to need feeding method using as shown in Figure 2 to 4
Micro-feeding device, the Micro-feeding device mainly include material storage feed pipe 1, mechanical vibration source 2, material storage feed pipe 1 include from
Sequentially connected falred entrance runner 11, circle Straight runner 12 and flaring exit runner 13, falred entrance under
11 lower end of runner is connected to round 12 upper end of Straight runner, and 11 bottom diameter of falred entrance runner and circle Straight runner 12
Internal diameter is identical, and circle 12 lower end of Straight runner is connected to 13 upper end of flaring exit runner, and 13 upper end of flaring exit runner
Internal diameter is identical as circle 12 internal diameter of Straight runner and is greater than the exit inside diameter of 13 lower end of flaring exit runner, and the present invention passes through depth
The research and repeatedly calculating, test acquisition repeatedly entered, the inlet inside diameter D ' design of 11 upper end of falred entrance runner
It is 15~45 millimeters, semi-cone angle α ' is designed as 10~15 °；Circle 12 internal diameter D of Straight runner is designed as 10~30 millimeters；Cone
The exit inside diameter D of 13 lower end of outlet flowoIt is designed as 1~10 millimeter, semi-cone angle α is designed as 6~20 °；Circle Straight runner 12
It is greater than 20 millimeters of 12 height h of Straight runner of circle or more with the overall height H of flaring exit runner 13, can be effectively applicable to
Fine powder, powder, the transport of granular materials and feed of the grain partial size within the scope of 10 microns to 3 millimeters.The mechanical vibration source 2
It is fixedly arranged on by vibration source fixation member 3 on the outer wall of flaring exit runner 13.
As one embodiment, the inner wall of 12 lower end of circle Straight runner and 2 upper end connectivity part of cone cavity
Surface is designed as a continuous cambered surface, and the radius of curvature R of the cambered surface is bigger, and powder flowing resistance is smaller, and mass flow is more stable,
Therefore it is determined by the way that experiment is final, the radius of curvature R of the cambered surface is designed as the 12 internal diameter D of circle Straight runner greater than 1.5 times.
By above-mentioned cambered surface transition, it can be avoided the clustering phenomena of material here, guarantee the homogeneity of the flow velocity of material, facilitate essence
The control being really fed.
The material selection of the filling runner material storage feed pipe 1 need to follow the following: light weight, low vibration damping.
As one embodiment, the production of the materials such as Pyrex is can be used in the material storage feed pipe 1.
It, can be in material storage feed pipe when the material storage feed pipe 1 is made of Pyrex as one embodiment
The volume markings that it is 1 milliliter such as precision that 1 outer surface, which is equipped with,.
The vibration source fixation member 3 include fixing sleeve and mechanical vibration source fixing clamp 31, fixing sleeve by respectively with circle
The circle Straight set 32 and conical sleeve 33 that Straight runner 12, flaring exit runner 13 match connect and compose, and are arranged
In circle Straight runner 12, on flaring exit runner 13, and there are three the tools of mechanical vibration source fixing clamp 31, in 120 ° of interval
Circumferential arrangement is connected on the outer wall of conical sleeve 33.Vibrating motor, quantity and mechanical vibration can be used in the mechanical vibration source 2
Dynamic source fixing clamp 31 has identical, and is separately mounted on the tool of mechanical vibration source fixing clamp 31, is fixedly clamped by bolt, passes through control
The vibration and stopping of vibrating motor processed, to realize filling (material is fallen) of the filling spray head of control and stop filling.
Stored up by using above-mentioned material storage feed pipe/to corresponding powder or the material of particle, and pass through control institute
The vibration of the mechanical vibration source stated and stop duration, accurately to control material feeding coal (i.e. when mechanical vibration source is vibrated,
Material, which falls, realizes feed, when mechanical vibration source stopping vibration, that is, stops feed).
Feeding method of the invention selects two kinds of powered operation modes:
1. a settable shell, and battery case is set on the shell, it is powered by the AA battery in battery case, and lead to
The manual switch of setting on the shell is crossed to control the vibration of vibrating motor and stop duration, to realize that (material is fallen control feed
Under) and stop.
2. as shown in figure 5, using power supply power supply, and relay switch is arranged, by the pulse signal of signal generator editor
Relay switch is controlled, to realize the feed duration (material is fallen) and stopping duration that automatically control vibrating motor.
Wherein, there is following feature with the automatic mode of power supply power supply:
1. powder, granular materials are directly proportional to the time by the feedstock mass of preset parameter runner in Micro-feeding device, when
In the case where runner parameter constant, material, which is fallen, can keep constant flow velocity, as shown in Figure 6.
2. variable grain material is under different parameters runner, flow velocity has difference, as shown in table 1:
Table 1
3. powder material outflow quality all levels off to the change curve of time of vibration after determining dispenser runner parameter
Linearly, the linearity of every curve all reaches 0.99.Therefore, can guarantee to stablize by control vibration duty constant
Dosing adjusts change time of vibration to realize different amounts of feed as a result, for example shown in table 2:
Table 2
In conclusion using the powder of the invention based on time-controllable and granular materials according to feeding method is needed, have with
Under multiple advantages:
1, the vibration time of mechanical vibration source is controlled by the way of manually or automatically controlling and stops duration, and is passed through
Further further investigation, improves runner design, increase the internal diameter of round Straight runner 12 and cone cavity, height,
Semi-cone angle, the parameters such as radius of connectivity part cambered surface so that entire flow passage structure parameter more optimizes, and pass through multiple repetition test
And calculating, redesigned each parameter specifically, suitable numberical range, tens of micrograms per second can be widely used in every
Ten grams of number of seconds, be the material feed that some tens of pm is formed to several mm granules by diameter, especially suitable for according to need to quantify and essence
Powder distribution and the selective deposition in plane really controlled.
2, facilitate to improve powder accuracy of measurement in complicated powder body material operation link, reduce waste.
3, the selection requirements to runner material are proposed, so that runner is high-efficient to Vibration propagation, and make runner
It can be more advantageous to micro filling accurate, effective control, the Pyrex runner of transparent material can be convenient through surface body
Product scale reads the powder surplus in runner.
4, the package assembly for devising a kind of three mechanical vibration sources 2 and material storage feed pipe 1 becomes micro filling design
For reality.
Those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate the present invention,
And be not used as limitation of the invention, as long as the change in spirit of the invention, to embodiment described above
Change, modification will all be fallen within the scope of claims of the present invention.
Claims (4)
1. a kind of powder and granular materials based on time-controllable is according to needing feeding method, it is characterised in that: micro is given using following
Glassware, the Micro-feeding device include material storage feed pipe and the mechanical mass vibration source that is mounted on material storage feed pipe, material
Storage feed pipe includes falred entrance runner, circle Straight runner and flaring exit runner, and falred entrance runner lower end connects
Round Straight runner upper end is passed through, and falred entrance runner bottom diameter is identical as circle Straight runner internal diameter, circle Straight
Runner lower end is connected to flaring exit runner upper end, and flaring exit runner upper-end inner diameter and circle Straight runner internal diameter phase
Exit inside diameter that is same and being greater than flaring exit runner lower end, the inlet inside diameter of the falred entrance runner upper end are designed as
15~45 millimeters, semi-cone angle is designed as 10~15 °；Circle Straight runner internal diameter is designed as 10~30 millimeters；Flaring exit stream
The exit inside diameter of road lower end is designed as 1~10 millimeter, and semi-cone angle is designed as 6~20 °；Circle Straight runner and flaring exit stream
The total height in road is greater than 20 millimeters of Straight runner height of circle or more；
The inner wall surface of the circle Straight runner lower end and flaring exit runner upper end connectivity part is a continuous cambered surface；
The mechanical vibration source is fixedly arranged on the outer wall of flaring exit runner by vibration source fixation member, and vibration source is fixed
Component includes fixing sleeve and mechanical vibration source stationary fixture, fixing sleeve by respectively with circle Straight runner, flaring exit runner
The circle Straight set and conical sleeve to match connects and composes, and is sheathed on round Straight runner, on flaring exit runner, machine
There are three tool vibration source stationary fixtures, is connected on the outer wall of conical sleeve in 120 ° of the circumferential arrangement in interval；
The material production that the material storage feed pipe is damped using light weight, low vibration；
Stored up by material storage feed pipe/to corresponding powder or the material of particle, and by setting manual switch or by setting
Relay switch is set, the vibration of the mechanical vibration source is controlled and stops duration, accurately to control the feeding coal of material, it is described
Relay switch is controlled using the pulse signal of signal generator editor.
2. the powder based on time-controllable and granular materials are according to needing feeding method as described in claim 1, it is characterised in that:
The radius of curvature of the cambered surface is greater than 1.5 times of circle Straight runner internal diameter.
3. the powder based on time-controllable and granular materials are according to needing feeding method as described in claim 1, it is characterised in that:
The material storage feed pipe is made of Pyrex.
4. the powder based on time-controllable and granular materials are according to needing feeding method as described in claim 1, it is characterised in that:
The mechanical vibration source is vibrating motor, and quantity is identical as mechanical vibration source stationary fixture, and is separately mounted to mechanical oscillation
On the stationary fixture of source.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710038578.XA CN106829052B (en) | 2017-01-19 | 2017-01-19 | A kind of powder and granular materials based on time-controllable is according to needing feeding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710038578.XA CN106829052B (en) | 2017-01-19 | 2017-01-19 | A kind of powder and granular materials based on time-controllable is according to needing feeding method |
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| CN106829052B true CN106829052B (en) | 2019-09-03 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB201810721D0 (en) * | 2018-06-29 | 2018-08-15 | Univ Manchester | Powder deposition |
| CN110411775A (en) * | 2019-06-17 | 2019-11-05 | 淮北矿业股份有限公司 | A kind of analysis sample charging gear |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4350049A (en) * | 1979-11-09 | 1982-09-21 | Boehringer Ingelheim Gmbh | Device and process for drawing off very small quantities of powder |
| US7273075B2 (en) * | 2005-02-07 | 2007-09-25 | Innovative Technology, Inc. | Brush-sieve powder-fluidizing apparatus for feeding nano-size and ultra-fine powders |
| CN102639417A (en) * | 2009-11-13 | 2012-08-15 | 普拉特及惠特尼火箭达因公司 | Active hopper for promoting flow of bulk granular or powdered solids |
| CN203497769U (en) * | 2013-08-28 | 2014-03-26 | 厦门泰益新洁净科技有限公司 | Supplying device of powdery materials |
| WO2014111718A1 (en) * | 2013-01-17 | 2014-07-24 | Varydose Limited | Apparatus and method for dispensing powders |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2472817A (en) * | 2009-08-19 | 2011-02-23 | Queen Mary & Westfield College | Powder dispenser with permanently-open linear-taper nozzle operated by vibration |
-
2017
- 2017-01-19 CN CN201710038578.XA patent/CN106829052B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4350049A (en) * | 1979-11-09 | 1982-09-21 | Boehringer Ingelheim Gmbh | Device and process for drawing off very small quantities of powder |
| US7273075B2 (en) * | 2005-02-07 | 2007-09-25 | Innovative Technology, Inc. | Brush-sieve powder-fluidizing apparatus for feeding nano-size and ultra-fine powders |
| CN102639417A (en) * | 2009-11-13 | 2012-08-15 | 普拉特及惠特尼火箭达因公司 | Active hopper for promoting flow of bulk granular or powdered solids |
| WO2014111718A1 (en) * | 2013-01-17 | 2014-07-24 | Varydose Limited | Apparatus and method for dispensing powders |
| CN203497769U (en) * | 2013-08-28 | 2014-03-26 | 厦门泰益新洁净科技有限公司 | Supplying device of powdery materials |
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Address after: 200093 No. 516, military road, Shanghai, Yangpu District Applicant after: University of Shanghai for Science and Technology Applicant after: Hangzhou Changxi Pharmaceutical Co., Ltd. Address before: 200093 No. 516, military road, Shanghai, Yangpu District Applicant before: University of Shanghai for Science and Technology Applicant before: Hangzhou Chang Chang medical instruments Co., Ltd. |
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Inventor after: Li Zongqi Inventor after: Chen Lan Inventor after: Chen Donghao Inventor after: Huang Peng Inventor after: Sun Meisheng Inventor before: Li Zongqi Inventor before: Chen Lan Inventor before: Chen Donghao Inventor before: Huang Peng Inventor before: Sun Meisheng |
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