CN2902973Y - Piezoelectric multi oscillator material conveyer - Google Patents
Piezoelectric multi oscillator material conveyer Download PDFInfo
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- CN2902973Y CN2902973Y CN 200620090302 CN200620090302U CN2902973Y CN 2902973 Y CN2902973 Y CN 2902973Y CN 200620090302 CN200620090302 CN 200620090302 CN 200620090302 U CN200620090302 U CN 200620090302U CN 2902973 Y CN2902973 Y CN 2902973Y
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Abstract
A piezoelectric multiple oscillator material conveyer solves the questions that the transport body of the prior traveling wave type ultrasonic power transport device is restricted by the traveling wave attenuation requirement, and the material transportation speed is not distributed uniformly in the process of the transportation. The utility model introduces a piezoelectric oscillator comprising an upper oscillator body, a lower oscillator body, an electrode and a vibration ceramic plate as vibration body, and is provided with a tilted rectangle transportation surface. A plurality of piezoelectric oscillators is arranged on the pedestal in turn along the transportation direction. The utility model works through the first order longitudinal vibration mode of the piezoelectricity oscillator, and drives the piezoelectricity oscillator to transport the materials to one direction, further realizing the ultrasonic vibration transformation. The utility model has the advantages that the transportation length is not restricted, the transportation speed is uniform, the supply speed is easy to be regulated, the material transportation speed can be controlled through adjusting the stimulant frequency or the voltage amplitude, the utility model can be applied widely, both the grain and the block granular material can be transported or supplied precisely, and the micromation, automatization and integration of the transport system are easy to be realized.
Description
Technical field
The utility model belongs to a kind of device for transporting objects, particularly a kind of piezoelectric multi-vibrator material conveyer.
Background technology
On automatic processing such as machinery, chemical industry, pharmacy, food, material preparation and assembling line, the short-distance transmission of material or parts and dispensing, continue to use classical low frequency high-amplitude electric and magnetic oscillation conveying technology, problem such as its noise is big, the dispensing precision is low, be not easy to realize accurate closed loop control, power to volume ratio is little is restricting the realization of entire system high performance index always always.
In recent years, people constantly expand the application of superaudio piezo-activator, piezo-activator is being studied and used aspect the conveyings such as powder, block, and by the vibration of the ultrasonic frequency domain of solid surface micron order and to the friction drive of material drive powder, block is carried to desired direction, this technology abbreviates the ultrasound-driven conveying technology as.
The principle that ultrasound-driven is carried is different from traditional low frequency high-amplitude vibrating transportation, but it have quiet noiseless, starting stop the fast direct drive of response, power density greatly, characteristics such as not affected by magnetic fields, version micro-miniaturisation, variation.Therefore, the ultrasound-driven conveying technology is very suitable for the accurate feed or the conveying of a small amount of or micro-powder material and small blocks material.Have broad application prospects at industrial circles such as machinery, chemical industry, pharmacy, food, material preparations, be one and can realize mass transport micro-miniaturisation, automation, integrated new and high technology.
Existing traveling wave type ultrasonic powder transfer device is made of piezoceramic and the bigger tubule of energy dissipation coefficient, as shown in figure 11, this device utilizes the inverse piezoelectric effect of piezoceramic to produce decay row ripple on the bigger tubule of energy dissipation coefficient, as shown in figure 12, this decay row waveguide causes the tubule inwall and produces the microcosmic elliptic motion, relies on the conveying of the axial rub realization powder of tubule inwall.The subject matter that above-mentioned traveling wave type ultrasonic powder transfer device exists is: only on the bigger material of energy dissipation coefficient, could produce the capable ripple of decay, and the scope of row wave attenuation is limited, this carries the length of body to be restricted with regard to making, can not be long, can not be too short, when too short, the effect of row ripple is relatively poor, when long, carry the amplitude of body end too small, cause delivery speed too small, thereby limited the length of mass transport.The amplitude of particle is very inhomogeneous on the conveying body of above-mentioned traveling wave type ultrasonic powder transfer device, makes delivery speed maldistribution on delivered length of powder material, thereby has reduced the degree of precision of conveying or feed.
Summary of the invention
The technical problems to be solved in the utility model is, the conveying body that overcomes existing traveling wave type ultrasonic powder transfer device is subjected to that the row wave attenuation requires to limit, the delivery speed of material problem such as maldistribution on delivered length, provides a kind of and carries the body material and delivered length is unrestricted, the piezoelectric multi-vibrator material conveyer of the delivery speed uniformity of material.
The utility model adopts has the piezoelectric vibrator of inclined rectangular feed surface as excitor, piezoelectric vibrator is made of last oscillator body, following oscillator body, electrode and exciting ceramic plate, a plurality of piezoelectric vibrators are installed on the base along throughput direction successively, the utility model utilizes the single order longitudinal vibration mode work of piezoelectric vibrator, promptly when piezoelectric vibrator produces the longitudinal extension vibration, the feed surface of piezoelectric vibrator is done the vibration of standing wave micron order superaudio, material one-way movement on the drive pressure electric tachometer indicator feed surface realizes the ultrasonic vibration conveying.
Between piezoelectric vibrator and base, elastic element is housed, guarantees that piezoelectric vibrator works under single order longitudinal vibration mode.
On the electrode of piezoelectric vibrator mounting hole is arranged, piezoelectric vibrator is fixed on the base by the mounting hole on the electrode.
Described piezoelectric vibrator is along carrying the parallel multiple row that is provided with of Width, to satisfy the requirement of carrying width.
The utlity model has following advantage:
1, delivered length and width are unrestricted, and delivery speed is even.
2, delivery rate is easy to adjust, and regulates the frequency of excitation or the delivery speed that voltage magnitude can be controlled material accurately.
3, field of application broad to particle, block bulk material, can be carried accurately or feed as miniature parts etc., and be easy to realize micro-miniaturisation, the automation, integrated of delivery system.
4, version variation, and be easy to design, be convenient to be connected mutually with other equipments of industrial product.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the structural representation of the utility model piezoelectric vibrator;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is the structural representation of the utility model biserial piezoelectric vibrator;
Fig. 6 is the structural representation of another embodiment of the utility model;
Fig. 7 is the left view of Fig. 6;
Fig. 8 is the structural representation of another piezoelectric vibrator of the utility model;
Fig. 9 is the left view of Fig. 8;
Figure 10 is the structural representation of the utility model biserial piezoelectric vibrator;
Figure 11 is the structural representation of existing traveling wave type ultrasonic powder transfer device;
Figure 12 is the scheme drawing of row wave attenuation curve in the existing traveling wave type ultrasonic powder transfer device delivery pipe.
The specific embodiment
Embodiment 1:
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the utility model adopts has the piezoelectric vibrator of inclined rectangular feed surface as excitor, piezoelectric vibrator is made of last oscillator body 2, following oscillator body 5, electrode 4 and exciting ceramic plate 3, the feed surface of last oscillator body 2 is the rectangle inclined-plane, exciting ceramic plate 3 has two groups, between last oscillator body 2, electrode 4 and following oscillator body 5, last oscillator body 2, following oscillator body 5, electrode 4 and exciting ceramic plate 3 usefulness pretension screws 7 are fixed together, and constitute the piezoelectric vibrator with inclined rectangular feed surface; A plurality of piezoelectric vibrators are installed on the base 1 successively along throughput direction, and are unrestricted along the quantity of the piezoelectric vibrator that is provided with on the throughput direction, depend primarily on the distance of convey materials; The oscillator bottom surface of described piezoelectric vibrator tilts to be installed on the base 1, thereby makes the conveyor surface of piezoelectric vibrator be in horizontality; Between piezoelectric vibrator and base 1 elastic element 6 is housed, elastic element 6 bonds together with base 1, and piezoelectric vibrator and elastic element 6 bond together, and guarantees that piezoelectric vibrator works under single order longitudinal vibration mode; Width is parallel to be provided with multiple row to described piezoelectric vibrator along carrying, and biserial as shown in Figure 5 also can adopt more multiple row, and parallel being set together is to satisfy the requirement of carrying width.
Embodiment 2:
As Fig. 6, Fig. 7, Fig. 8 and shown in Figure 9, its structure such as embodiment 1, difference is, on the electrode 8 of piezoelectric vibrator mounting hole is arranged, mounting hole site is in the both sides of electrode 8, and piezoelectric vibrator is fixed on the base 9 with screw 10 by the mounting hole on the electrode 8, piezoelectric vibrator tilts to install, during installation, guarantee that the conveyor surface of piezoelectric vibrator is in horizontality, thereby realize the horizontal feed of material; Width is parallel to be provided with multiple row to described piezoelectric vibrator along carrying, and biserial as shown in figure 10 also can adopt more multiple row, and parallel being set together is to satisfy the requirement of carrying width.
Claims (4)
1, a kind of piezoelectric multi-vibrator material conveyer, it is characterized in that, it adopts the piezoelectric vibrator with inclined rectangular feed surface as excitor, and piezoelectric vibrator is made of last oscillator body, following oscillator body, electrode and exciting ceramic plate, and a plurality of piezoelectric vibrators are installed on the base successively along throughput direction.
2, piezoelectric multi-vibrator material conveyer according to claim 1 is characterized in that, between piezoelectric vibrator and base elastic element is housed.
3, piezoelectric multi-vibrator material conveyer according to claim 1 is characterized in that, on the electrode of piezoelectric vibrator mounting hole is arranged, and piezoelectric vibrator is fixed on the base by the mounting hole on the electrode.
4, piezoelectric multi-vibrator material conveyer according to claim 1 is characterized in that, described piezoelectric vibrator is along carrying the parallel multiple row that is provided with of Width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620090302 CN2902973Y (en) | 2006-04-07 | 2006-04-07 | Piezoelectric multi oscillator material conveyer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620090302 CN2902973Y (en) | 2006-04-07 | 2006-04-07 | Piezoelectric multi oscillator material conveyer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2902973Y true CN2902973Y (en) | 2007-05-23 |
Family
ID=38078381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620090302 Expired - Fee Related CN2902973Y (en) | 2006-04-07 | 2006-04-07 | Piezoelectric multi oscillator material conveyer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2902973Y (en) |
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2006
- 2006-04-07 CN CN 200620090302 patent/CN2902973Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070523 Termination date: 20110407 |