JPH0733228A - Powder conveyor - Google Patents
Powder conveyorInfo
- Publication number
- JPH0733228A JPH0733228A JP18137793A JP18137793A JPH0733228A JP H0733228 A JPH0733228 A JP H0733228A JP 18137793 A JP18137793 A JP 18137793A JP 18137793 A JP18137793 A JP 18137793A JP H0733228 A JPH0733228 A JP H0733228A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- transport
- ultrasonic
- cylinder
- vibration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Jigging Conveyors (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Non-Mechanical Conveyors (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、例えば粉末セメント、
粉体塗料、金属粉末類等の各種粉体を輸送する粉体輸送
装置に関する。BACKGROUND OF THE INVENTION The present invention relates to, for example, powder cement,
The present invention relates to a powder transport device that transports various powders such as powder coatings and metal powders.
【０００２】[0002]
【従来の技術】従来の粉体輸送装置には、例えば特開平
２−１２３０４号公報に開示される粉体等の移送供給装
置がある。この移送供給装置は、輸送用筒体内にてスク
リュ移送体がモータにて回転することにより、粉末等を
輸送するいわゆるスクリュコンベアを備えている。2. Description of the Related Art As a conventional powder transporting device, there is a powder feeding device for feeding powder or the like disclosed in Japanese Patent Laid-Open No. 12304/1990. This transfer supply device is provided with a so-called screw conveyor that transports powder and the like by rotating a screw transfer body by a motor in a transportation cylinder.
【０００３】[0003]
【発明が解決しようとする課題】前記スクリュコンベヤ
を備える移送供給装置によると、スクリュ移送体と輸送
用筒体との間にて粉体を圧送するので、輸送作用部であ
るスクリュ移送体に摩耗を生じるといった問題が残る。
またモータをストップさせても、スクリュ移送体が慣性
により少なからず回転するので、計量精度がよくない。
またスクリュ移送体により粉体を圧送するため、輸送中
に粉塊ができやすい。According to the transfer and supply device provided with the screw conveyor, powder is pressure-fed between the screw transfer body and the transport cylinder, so that the screw transport body, which is the transport action part, is abraded. Remains a problem.
In addition, even if the motor is stopped, the screw transfer body rotates due to the inertia to a considerable extent, so that the measuring accuracy is not good.
Further, since the powder is pressure-fed by the screw transfer body, powder lumps are easily formed during transportation.
【０００４】そこで本発明は、前記した問題点を解決す
るためになされたものであり、その目的は輸送作用部が
摩耗することなく、計量精度のよいかつ粉塊のできない
粉体輸送を実現することのできる粉体輸送装置を提供す
ることにある。Therefore, the present invention has been made in order to solve the above-mentioned problems, and an object thereof is to realize powder transportation with good weighing accuracy and free from powder agglomerates, without abrasion of the transportation portion. It is to provide a powder transport device capable of performing the above.
【０００５】[0005]
【課題を解決するための手段】前記課題を解決する本発
明の粉体輸送装置は、粉体の輸送通路を形成する輸送用
筒体と、ボルト締めランジュバン型振動子を使用しかつ
前記輸送通路内の粉体に楕円軌道の超音波振動を付与す
る超音波駆動装置とを備えている。A powder transporting device of the present invention for solving the above-mentioned problems uses a transporting cylinder forming a powder transporting path, a bolted Langevin type vibrator, and the transporting path. And an ultrasonic drive device for applying ultrasonic vibration of an elliptical orbit to the powder inside.
【０００６】[0006]
【作用】前記手段によれば、超音波駆動装置によって輸
送用筒体の輸送通路内の粉体に楕円軌道の超音波振動が
付与され、その振動によって粉体が輸送される。According to the above-mentioned means, ultrasonic vibration of an elliptical orbit is applied to the powder in the transportation passage of the transportation cylinder by the ultrasonic driving device, and the vibration transports the powder.
【０００７】[0007]
【実施例】本発明の実施例１〜３について順に説明す
る。 〔実施例１〕実施例１について図１〜図３を参照して説
明する。粉体輸送装置の説明断面図が示された図１にお
いて、粉体１２を収容するホッパー２０の下端供給口２
１には、円筒管からなる輸送用筒体２３の上端開口が接
続されている。輸送用筒体２３の下端開口２３ａは粉体
１２の供給部位にさし向けられる。輸送用筒体２３は、
その内部に粉体１２の輸送通路２４を形成するもので、
ホッパー２０の供給口２１から斜め下方へ延びその下端
部がほぼ水平方向へ延びている。EXAMPLES Examples 1 to 3 of the present invention will be described in order. [Embodiment 1] Embodiment 1 will be described with reference to FIGS. In FIG. 1, which is an explanatory cross-sectional view of a powder transport device, a lower end supply port 2 of a hopper 20 for containing a powder 12 is shown.
1, an upper end opening of a transporting cylinder 23 made of a cylindrical tube is connected. The lower end opening 23a of the transporting cylinder 23 is directed to the supply site of the powder 12. The transport cylinder 23 is
A transport passage 24 for the powder 12 is formed therein,
The hopper 20 extends obliquely downward from the supply port 21 and its lower end extends substantially horizontally.
【０００８】前記輸送用筒体２３の下端部水平部分の底
面には、図３の断面図に示されるようにホーン挿入穴２
５が形成されている。このホーン挿入穴２５には、電極
分割型圧電素子を用いたボルト締めランジュバン形振動
子を使用する超音波駆動装置１０の先端ホーン部２が密
着状に挿入されている。超音波駆動装置１０は、ホーン
部２の先端面の駆動面８において輸送通路２４内の粉体
１２に楕円軌道の超音波振動を付与するもので、例えば
特開昭６４−７４０７２号公報あるいは実願平３−１１
００５９号の装置とほとんど同様の構成であるので、概
要を述べるにとどめる。図２に超音波駆動装置の説明図
が示されており、（ａ）は断面図、（ｂ）は分解斜視図
である。As shown in the sectional view of FIG. 3, the horn insertion hole 2 is formed on the bottom surface of the horizontal portion of the lower end portion of the transport cylinder 23.
5 is formed. Into the horn insertion hole 25, the tip horn portion 2 of the ultrasonic driving device 10 using a bolted Langevin type vibrator using a divided electrode type piezoelectric element is closely inserted. The ultrasonic driving device 10 applies ultrasonic vibration of an elliptical orbit to the powder 12 in the transport passage 24 at the driving surface 8 at the tip end surface of the horn portion 2, and is disclosed in, for example, Japanese Patent Laid-Open No. 64-74072. Wishhei 3-11
Since it has almost the same configuration as the device of No. 0059, only an outline will be described. 2A and 2B are explanatory views of the ultrasonic driving device, where FIG. 2A is a sectional view and FIG. 2B is an exploded perspective view.
【０００９】図２に示されるように、上下の金属ブロッ
ク１，７は、金属製ボルト６の両端にそれぞれねじつけ
られる。この両金属ブロック１，７の間には、その下段
より順にリング状電極５、リング状圧電素子３ｂ、一対
でリング状をなす分割電極４、リング状圧電素子３ａが
前記ボルト６を挿通した状態で挟持されている。上段の
金属ブロック１の上端部には、先端面を駆動面８とする
ホーン部２が形成されている。上下の金属ブロック１，
７、電極５およびボルト６は電気的に接続される。また
分割電極４および電極５は駆動回路１１に接続される
（図１参照）。前記駆動回路１１からの信号に基づいて
各分割電極４に選択的に数１０ kHzの高周波が印加され
ることにより、圧電素子３ａ，３ｂの該当部分の厚みが
増減し、ホーン部２先端に縦振動と屈曲２次の共振点を
重ねることによる楕円軌道（図１中、矢印参照）が発生
する。なお超音波駆動装置１０およびホッパー２０は、
図示されないフレーム等の支持部材によって支持されて
いる。As shown in FIG. 2, the upper and lower metal blocks 1 and 7 are respectively screwed to both ends of the metal bolt 6. A ring-shaped electrode 5, a ring-shaped piezoelectric element 3b, a pair of ring-shaped divided electrodes 4, and a ring-shaped piezoelectric element 3a are inserted between the two metal blocks 1 and 7 in this order from the bottom. It is sandwiched between. At the upper end of the upper metal block 1, a horn portion 2 having a front end surface as a drive surface 8 is formed. Upper and lower metal blocks 1,
7, the electrode 5 and the bolt 6 are electrically connected. The divided electrodes 4 and 5 are connected to the drive circuit 11 (see FIG. 1). By selectively applying a high frequency of several tens of kHz to each divided electrode 4 based on the signal from the driving circuit 11, the thickness of the corresponding portion of the piezoelectric elements 3a and 3b is increased or decreased, and the horn portion 2 is vertically extended. An elliptical orbit (see the arrow in FIG. 1) is generated by superposing the vibration and the second resonance point of bending. The ultrasonic driving device 10 and the hopper 20 are
It is supported by a supporting member such as a frame (not shown).
【００１０】前記粉体輸送装置において、超音波駆動装
置１０の駆動により、ホーン部２の駆動面８において楕
円軌道の超音波振動が粉体１２に付与されると、その超
音波振動によって粉体１２自体も楕円軌道しながら前進
し、これによって輸送用頭体２３の輸送通路２４内を粉
体１２が下流に向けて輸送されていくとともに、その輸
送分に応じてホッパー２０内の粉体１２が輸送用筒体２
３の輸送通路２４内へと落下供給されていく。なお粉体
１２の輸送停止時には、超音波駆動装置１０を停止もし
くは分割電極４の反対側を駆動させる。また輸送用筒体
２３の傾斜度、パイプ径等は、粉体１２の密度と摩擦に
より粉体１２が停止され、かつ超音波駆動装置１０の振
動の付加によって粉体１２が摩擦の低下をもって輸送さ
れる程度に設定されるものとする。In the powder transporting apparatus, when the ultrasonic vibration device 10 is driven to apply ultrasonic vibration of an elliptical orbit to the powder 12 on the driving surface 8 of the horn portion 2, the ultrasonic vibration causes the powder vibration. 12 itself moves forward in an elliptical orbit, whereby the powder 12 is transported downstream in the transport passage 24 of the transport head 23, and the powder 12 in the hopper 20 is transported according to the transported amount. Is a transport cylinder 2
3 is dropped and supplied into the transportation passage 24. When the transportation of the powder 12 is stopped, the ultrasonic driving device 10 is stopped or the opposite side of the divided electrode 4 is driven. Further, regarding the inclination degree, the pipe diameter, etc. of the transporting cylinder 23, the powder 12 is stopped due to the density and friction of the powder 12, and the vibration of the ultrasonic driving device 10 causes the powder 12 to be transported with a decrease in friction. It should be set to the extent that
【００１１】前記粉体輸送装置によれば、楕円軌道の超
音波振動によって粉体１２を指向性よく輸送するので、
超音波駆動装置１０の輸送作用部であるホーン部２の駆
動面８と粉体１２とがほとんど接触することなく、駆動
面８から粉体１２が浮いた状態となるため、駆動面８と
粉体１２との間に摩擦がほとんど生じない。よってホー
ン部２の駆動面８が摩耗しない。また駆動源としてボル
ト締めランジュバン型振動子を使用する超音波駆動装置
１０を用いているので、応答性のよい作動が可能で、瞬
時の始動、停止ができることから高い計量精度が得られ
る。また粉体１２を超音波振動によって微粒化させるの
で、粉塊のできない輸送が可能である。なお超音波振動
による粉体１２の微粒化により、流動度の影響も受けに
くい輸送ができる。なお超音波振動のために供給される
電力が高周波であるため、装置の小型化も可能である。According to the above-mentioned powder transporting device, the powder 12 is transported with directivity by the ultrasonic vibration of the elliptical orbit.
The powder 12 is floated from the drive surface 8 with almost no contact between the drive surface 8 and the powder 12 of the horn portion 2 which is the transport action portion of the ultrasonic drive device 10. There is almost no friction with the body 12. Therefore, the drive surface 8 of the horn portion 2 does not wear. Further, since the ultrasonic drive device 10 using the bolted Langevin type vibrator as the drive source is used, it is possible to operate with high responsiveness and to start and stop instantly, so that high weighing accuracy can be obtained. In addition, since the powder 12 is atomized by ultrasonic vibration, it is possible to carry out transportation without forming a powder lump. It should be noted that the powder 12 is atomized by ultrasonic vibration, so that the powder 12 can be transported without being affected by the fluidity. Since the electric power supplied for ultrasonic vibration is high frequency, the device can be downsized.
【００１２】〔実施例２〕実施例２について要部断面図
を示した図４を参照して説明する。なお本例は、実施例
１の一部を変更したものであるからその変更部分につい
て詳述し、実施例１と同一もしくは均等構成と考えられ
る部分には図面に同一符号を付して重複する説明は省略
する。また次以降の実施例についても同様の考えで重複
する説明は省略する。本例は、超音波駆動装置１０のホ
ーン部２を輸送用筒体２３のホーン挿入穴２５に密着さ
せない隙間をもって挿入させたものである。本例による
と、ホーン部２が輸送用筒体２３と離れているので、実
施例１の密着させたものと異なり、ホーン部２の楕円軌
道が輸送用筒体２３の剛性によって抑制されない。ま
た、前記隙間はホーン部２の楕円軌道のストロークを許
容する程度であればよく、そのストロークは数１０μm
程度なので、その隙間から粉体１２が洩れる心配がほと
んどない。[Second Embodiment] A second embodiment will be described with reference to FIG. 4 which is a sectional view of an essential part. Since this example is a modification of a part of the first embodiment, the modified part will be described in detail, and the parts that are considered to be the same as or equivalent to those in the first embodiment will be denoted by the same reference numerals in the drawings and overlap. The description is omitted. Further, the same concept is applied to the following embodiments, and a duplicate description will be omitted. In this example, the horn portion 2 of the ultrasonic drive device 10 is inserted into the horn insertion hole 25 of the transportation cylinder 23 with a gap that does not allow close contact. According to this example, since the horn portion 2 is separated from the transporting cylinder 23, the elliptical orbit of the horn portion 2 is not suppressed by the rigidity of the transporting cylinder 23 unlike the closely attached one in the first embodiment. Further, the gap is only required to allow the stroke of the elliptical orbit of the horn portion 2, and the stroke is several tens of μm.
Since it is about the degree, there is almost no fear that the powder 12 leaks from the gap.
【００１３】〔実施例３〕実施例３について要部断面図
を示した図５を参照して説明する。本例は、前記輸送用
筒体２３のホーン挿入穴２５を排除し、また超音波駆動
装置１０のホーン部２に取付穴２８を形成し、この取付
穴２８に輸送用筒体２３の下端開口２３ａ部分を圧入等
により取り付けたものである。本例の場合、前記実施例
１，２と異なり、取付穴２８の内周面がホーン部２の駆
動面となる。[Third Embodiment] A third embodiment will be described with reference to FIG. 5, which is a sectional view of an essential part. In this example, the horn insertion hole 25 of the transportation cylinder 23 is eliminated, and a mounting hole 28 is formed in the horn portion 2 of the ultrasonic drive device 10. The mounting hole 28 has a lower end opening of the transportation cylinder 23. 23a is attached by press fitting or the like. In the case of this example, unlike the first and second embodiments, the inner peripheral surface of the mounting hole 28 becomes the driving surface of the horn portion 2.
【００１４】[0014]
【発明の効果】本発明によれば、楕円軌道の超音波振動
によって粉体を輸送するので、超音波駆動装置の輸送作
用部と粉体との間に摩擦がほとんどなく、よって輸送作
用部に摩耗が生じない。また駆動源としてボルト締めラ
ンジュバン型振動子を使用する超音波駆動装置を用いて
いるので、応答性のよい作動が可能で、瞬時の始動、停
止ができることから高い計量精度が得られる。また粉体
を超音波振動によって微粒化させるので、粉塊のできな
い輸送が可能である。According to the present invention, since the powder is transported by the ultrasonic vibration of the elliptical orbit, there is almost no friction between the transport acting portion of the ultrasonic driving device and the powder, so that the transport acting portion is not affected. No wear occurs. Further, since an ultrasonic drive device using a bolted Langevin type vibrator is used as a drive source, a highly responsive operation is possible, and instant starting and stopping are possible, so that high weighing accuracy can be obtained. Further, since the powder is atomized by ultrasonic vibration, it is possible to carry out the transportation without powder lumps.
【図１】実施例１の粉体輸送装置の説明断面図である。FIG. 1 is an explanatory cross-sectional view of a powder transportation device according to a first embodiment.
【図２】超音波駆動装置の説明図である。FIG. 2 is an explanatory diagram of an ultrasonic driving device.
【図３】実施例１の要部断面図である。FIG. 3 is a cross-sectional view of a main part of the first embodiment.
【図４】実施例２を示す要部断面図である。FIG. 4 is a cross-sectional view of essential parts showing a second embodiment.
【図５】実施例３を示す要部断面図である。FIG. 5 is a cross-sectional view of essential parts showing a third embodiment.
１０ 超音波駆動装置 １２ 粉体 ２３ 輸送用筒体 ２４ 輸送通路 10 Ultrasonic drive device 12 Powder 23 Transport cylinder 24 Transport passage
Claims (1)
と、ボルト締めランジュバン型振動子を使用しかつ前記
輸送通路内の粉体に楕円軌道の超音波振動を付与する超
音波駆動装置とを備えた粉体輸送装置。1. An ultrasonic drive device, which uses a cylinder for transport forming a powder transport passage and a bolted Langevin type oscillator, and applies ultrasonic vibration of an elliptical orbit to the powder in the transport passage. And a powder transportation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18137793A JPH0733228A (en) | 1993-07-22 | 1993-07-22 | Powder conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18137793A JPH0733228A (en) | 1993-07-22 | 1993-07-22 | Powder conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0733228A true JPH0733228A (en) | 1995-02-03 |
Family
ID=16099671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18137793A Pending JPH0733228A (en) | 1993-07-22 | 1993-07-22 | Powder conveyor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0733228A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5917266A (en) * | 1996-10-11 | 1999-06-29 | Aisan Kogyo Kabushiki Kaisha | Control apparatus for intermittently driving actuator, powder feeder and servo system utilizing thereof |
| KR100607557B1 (en) * | 1999-09-22 | 2006-08-01 | 다이닛뽄 잉크 앤드 케미칼즈, 인코포레이티드 | Quantitative continuous supplying method and production method of moldings utilizing it |
| CN100395167C (en) * | 2001-09-28 | 2008-06-18 | 三菱电机株式会社 | Elevator device |
| US8261886B2 (en) | 2007-06-21 | 2012-09-11 | Mitsubishi Electric Corporation | Safety device for elevator and rope slip detection method |
| US9656776B2 (en) | 2013-12-16 | 2017-05-23 | Graphic Packaging International, Inc. | Construct with stiffening features |
| CN112478787A (en) * | 2020-11-23 | 2021-03-12 | 江南大学 | Ultrasonic precise feeding device and method for micron-sized powder particles |
| TWI819680B (en) * | 2021-07-06 | 2023-10-21 | 日商金星股份有限公司 | Air-fed ultrasonic gushing fine powder quantitative supply system, fine powder supply system, and air-fed ultrasonic gushing fine powder quantitative supply method |
-
1993
- 1993-07-22 JP JP18137793A patent/JPH0733228A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5917266A (en) * | 1996-10-11 | 1999-06-29 | Aisan Kogyo Kabushiki Kaisha | Control apparatus for intermittently driving actuator, powder feeder and servo system utilizing thereof |
| KR100607557B1 (en) * | 1999-09-22 | 2006-08-01 | 다이닛뽄 잉크 앤드 케미칼즈, 인코포레이티드 | Quantitative continuous supplying method and production method of moldings utilizing it |
| CN100395167C (en) * | 2001-09-28 | 2008-06-18 | 三菱电机株式会社 | Elevator device |
| US8261886B2 (en) | 2007-06-21 | 2012-09-11 | Mitsubishi Electric Corporation | Safety device for elevator and rope slip detection method |
| US8297413B2 (en) | 2007-06-21 | 2012-10-30 | Mitsubishi Electric Corporation | Safety device for elevator and rope slip detection method using drive sheave acceleration |
| US8336677B2 (en) | 2007-06-21 | 2012-12-25 | Mitsubishi Electric Corporation | Safety device for elevator and rope slip detection method |
| US9656776B2 (en) | 2013-12-16 | 2017-05-23 | Graphic Packaging International, Inc. | Construct with stiffening features |
| CN112478787A (en) * | 2020-11-23 | 2021-03-12 | 江南大学 | Ultrasonic precise feeding device and method for micron-sized powder particles |
| CN112478787B (en) * | 2020-11-23 | 2021-09-24 | 江南大学 | Ultrasonic precise feeding device and method for micron-sized powder particles |
| TWI819680B (en) * | 2021-07-06 | 2023-10-21 | 日商金星股份有限公司 | Air-fed ultrasonic gushing fine powder quantitative supply system, fine powder supply system, and air-fed ultrasonic gushing fine powder quantitative supply method |
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