CN106743754B - A kind of Micro-feeding device of powder, granular materials - Google Patents
A kind of Micro-feeding device of powder, granular materials Download PDFInfo
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- CN106743754B CN106743754B CN201710038767.7A CN201710038767A CN106743754B CN 106743754 B CN106743754 B CN 106743754B CN 201710038767 A CN201710038767 A CN 201710038767A CN 106743754 B CN106743754 B CN 106743754B
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- runner
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- vibration source
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/34—Emptying devices
- B65G65/40—Devices for emptying otherwise than from the top
- B65G65/44—Devices for emptying otherwise than from the top using reciprocating conveyors, e.g. jigging conveyors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The invention discloses a kind of powders, the Micro-feeding device of granular materials, including material storage feed pipe, mechanical vibration source, 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 filling apparatus of particle, more specifically to a kind of powder, granular materials it is micro
Dispenser.
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 discloses the delivery pipe such as tri- kinds of Fig. 1 a, 1b, 1c different structures, and gives relevant parameter:
Minimum 5 millimeters in the horizontal direction of the internal diameter D (disregarding pipe thickness) of upper vertical parts；Outlet aperture d is in the horizontal direction
On be up to 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 hang down
Histogram 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 powder, granular materials it is micro-
Amount feeding device can be applied to powder and granular materials Micro-feeding, especially based on the autofeed principle of vibrational excitation control
The particle and high viscosity powder bad suitable for mobility realizes selective deposition in plane by milligram ammonia feeding operation, such as
Based on according to the 3D printing for needing powder to deposit.
To achieve the above object, the present invention adopts the following technical scheme:
The Micro-feeding device of the powder, granular materials, including material storage feed pipe, mechanical vibration source, material storage feed pipe
Including falred entrance runner, circle Straight runner and flaring exit runner, it is straight that falred entrance runner lower end is connected to circle
Tubular runner upper end, and falred entrance runner bottom diameter is identical as circle Straight runner internal diameter, circle Straight runner lower end
It is connected to flaring exit runner upper end, and flaring exit runner upper-end inner diameter is identical as circle Straight runner internal diameter and is greater than
The exit inside diameter of flaring exit runner lower end, the inlet inside diameter of the falred entrance runner upper end are designed as 15~45 millis
Rice, semi-cone angle are designed as 10~15 °；Circle Straight runner internal diameter is designed as 10~30 millimeters；Flaring exit runner lower end
Exit inside diameter is designed as 1~10 millimeter, and semi-cone angle is designed as 6~20 °；Total height of circle Straight runner and flaring exit runner
Degree is greater than 20 millimeters of Straight runner height of circle or more, and the mechanical vibration source is installed on flaring exit runner.
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, powder of the invention, granular materials Micro-feeding device have several advantages that
1, the key parameter and specific parameter area in entire material storage feed pipe are optimized, can be widely used in every
Second tens of micrograms is the material feed that some tens of pm is formed to several mm granules by diameter to tens of grams per second, particularly suitable
Yu Yixu is quantitative to be distributed and selective deposition in plane with the powder accurately 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 be powder of the invention, granular materials Micro-feeding device decomposition diagram；
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.
Specific embodiment
Technical solution of the present invention is further illustrated with reference to the accompanying drawings and examples.
The Micro-feeding device of powder, granular materials of the invention is as shown in Figure 2 to 4, mainly includes material storage feed pipe
1, mechanical vibration source 2, material storage feed pipe 1 include sequentially connected falred entrance runner 11 from top to bottom, circle Straight stream
Road 12 and flaring exit runner 13,11 lower end of falred entrance runner are connected to round 12 upper end of Straight runner, and infundibulate
11 bottom diameter of entrance channel is identical as circle 12 internal diameter of Straight runner, and circle 12 lower end of Straight runner is connected to flaring exit
13 upper end of runner, and 13 upper-end inner diameter of flaring exit runner is identical as circle 12 internal diameter of Straight runner and is greater than flaring exit
The exit inside diameter of 13 lower end of runner, the present invention calculate repeatedly by in-depth study and repeatedly, test acquisition, the funnel
The inlet inside diameter D ' of 11 upper end of shape entrance channel is designed as 15~45 millimeters, and semi-cone angle α ' is designed as 10~15 °；Circle Straight stream
12 internal diameter D of road is designed as 10~30 millimeters；The exit inside diameter D of 13 lower end of flaring exit runneroIt is designed as 1~10 millimeter, half
Cone angle is designed as 6~20 °；The overall height H of circle Straight runner 12 and flaring exit runner 13 is greater than circle Straight runner 12
20 millimeters of height h or more, fine powder, powder, granular material of the grain diameter within the scope of 10 microns to 3 millimeters can be effectively applicable to
The transport of material and feed.The mechanical vibration source 2 is fixedly arranged on the outer of flaring exit runner 13 by vibration source fixation member 3
On wall.
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
Really feed control.
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.
As one embodiment, when the material storage feed pipe 1 is made of Pyrex, outside material storage feed pipe 1
The volume markings that it is 1 milliliter such as precision that 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.
In conclusion using powder of the invention, granular materials Micro-feeding device and patent GB2472817 disclosed in
Delivery pipe is compared, and is had the advantages that following multiple:
1, further further investigation, improves runner design, increases round Straight runner 12 and cone cavity
Internal diameter, height, semi-cone angle, the parameters such as radius of connectivity part cambered surface, so that entire flow passage structure parameter more optimizes, and by more
Secondary repetition test and calculating, redesigned each parameter specifically, suitable numberical range, every number of seconds can be widely used in
Ten milligrams to tens of grams per second, be 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 and accurately control, such as based on according to the 3D printing for needing powder to deposit.
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, corresponding volume markings can be marked in glass channel outer surface, the powder surplus in convenient reading runner.
5, 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 (5)
1. the Micro-feeding device of a kind of powder, granular materials, it is characterised in that: including material storage feed pipe, mechanical vibration source, object
Material storage feed pipe includes falred entrance runner, circle Straight runner and flaring exit runner, falred entrance runner lower end
It is connected to round Straight runner upper end, and falred entrance runner bottom diameter is identical as circle Straight runner internal diameter, circle straight tube
Shape 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
Exit inside diameter that is identical and being greater than flaring exit runner lower end, the inlet inside diameter design of the falred entrance runner upper end
It is 15~45 millimeters, semi-cone angle is designed as 10~15 °；Circle Straight runner internal diameter is designed as 10~30 millimeters；Flaring exit
The exit inside diameter of runner lower end is designed as 1~10 millimeter, and semi-cone angle is designed as 6~20 °；Circle Straight runner and flaring exit
The total height of runner is greater than 20 millimeters of Straight runner height of circle or more, and the mechanical vibration source is installed on flaring exit stream
On road；The inner wall surface of the circle Straight runner lower end and flaring exit runner upper end connectivity part is a continuous arc
Face；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 fixing clamp, fixing sleeve by respectively with circle Straight runner, flaring exit runner phase
Matched round Straight set and conical sleeve connect and compose, and are sheathed on round Straight runner, on flaring exit runner, mechanical
There are three vibration source stationary fixtures, is connected on the outer wall of conical sleeve in 120 ° of the circumferential arrangement in interval.
2. the Micro-feeding device of powder as described in claim 1, granular materials, it is characterised in that: the song of the cambered surface
Rate radius is greater than 1.5 times of circle Straight runner internal diameter.
3. the Micro-feeding device of powder as described in claim 1, granular materials, it is characterised in that: the material storage is given
The material production that expects pipe is damped using light weight, low vibration.
4. the Micro-feeding device of powder as described in claim 3, granular materials, it is characterised in that: the material storage is given
Expects pipe is made of Pyrex.
5. the Micro-feeding device of powder as described in claim 1, granular materials, it is characterised in that: the mechanical oscillation
Source is vibrating motor, and quantity is identical as mechanical vibration source stationary fixture, and is separately mounted on mechanical vibration source stationary fixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710038767.7A CN106743754B (en) | 2017-01-19 | 2017-01-19 | A kind of Micro-feeding device of powder, granular materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710038767.7A CN106743754B (en) | 2017-01-19 | 2017-01-19 | A kind of Micro-feeding device of powder, granular materials |
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| Publication Number | Publication Date |
|---|---|
| CN106743754A CN106743754A (en) | 2017-05-31 |
| CN106743754B true CN106743754B (en) | 2019-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710038767.7A Active CN106743754B (en) | 2017-01-19 | 2017-01-19 | A kind of Micro-feeding device of powder, granular materials |
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Citations (6)
| 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 |
| CN103482258A (en) * | 2013-08-29 | 2014-01-01 | 合肥雄鹰自动化工程科技有限公司 | Measuring, stacking and conveying device for rare earth material |
| 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 |
| CN205838062U (en) * | 2016-07-29 | 2016-12-28 | 江西省电力设计院 | A kind of thermal power plant big load buffering hod device |
Family Cites Families (2)
| 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 |
| GB201300828D0 (en) * | 2013-01-17 | 2013-03-06 | Varydose Ltd | Apparatus and method for dispensing powders |
-
2017
- 2017-01-19 CN CN201710038767.7A patent/CN106743754B/en active Active
Patent Citations (6)
| 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 |
| CN103482258A (en) * | 2013-08-29 | 2014-01-01 | 合肥雄鹰自动化工程科技有限公司 | Measuring, stacking and conveying device for rare earth material |
| CN205838062U (en) * | 2016-07-29 | 2016-12-28 | 江西省电力设计院 | A kind of thermal power plant big load buffering hod device |
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| Publication number | Publication date |
|---|---|
| CN106743754A (en) | 2017-05-31 |
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Address after: 200093 No. 516, military road, Shanghai, Yangpu District Co-patentee after: Hangzhou Changxi Pharmaceutical Co., Ltd. Patentee after: University of Shanghai for Science and Technology Address before: 200093 No. 516, military road, Shanghai, Yangpu District Co-patentee before: Hangzhou Chang Chang medical instruments Co., Ltd. Patentee before: University of Shanghai for Science and Technology |
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| CP01 | Change in the name or title of a patent holder | ||
| CB03 | Change of inventor or designer information |
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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| CB03 | Change of inventor or designer information |