JPH0674991B2 - Powder pressure metering device - Google Patents
Powder pressure metering deviceInfo
- Publication number
- JPH0674991B2 JPH0674991B2 JP2269497A JP26949790A JPH0674991B2 JP H0674991 B2 JPH0674991 B2 JP H0674991B2 JP 2269497 A JP2269497 A JP 2269497A JP 26949790 A JP26949790 A JP 26949790A JP H0674991 B2 JPH0674991 B2 JP H0674991B2
- Authority
- JP
- Japan
- Prior art keywords
- powder
- measuring
- plate
- pressure
- tank
- 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.)
- Expired - Lifetime
Links
Landscapes
- Basic Packing Technique (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、例えばコンクリートに混合する急結剤などの
粉体圧送計量装置に関する。Description: [Field of Industrial Application] The present invention relates to a powder pressure-feeding / metering device for a quick-setting admixture, which is mixed with concrete, for example.
［従来の技術］ 従来、例えばNATM（NATMとは地山が本来持っている力
（抵抗力、支持力）を積極的に利用して、支保で構成さ
れるシェルと地山が一体となって構造物としてのトンネ
ルを形成させるものである。従って、地山の強度を最大
限に引き出すため主支保工としてロックボルトと吹付コ
ンクリートが用いられる。）の吹付けに用いる粉体供給
装置は、筒状タンクの底板上に、外周方向外方を向いた
多数の放射状ブレードを備えたフィードホイールを設
け、例えばウォームギヤを介して回転すると共に、該ホ
イール上に撹拌装置を設け、ブレード間の粉体を送気管
からの搬送空気により排出管から排出するようにしてい
た。[Prior Art] Conventionally, for example, NATM (NATM is a structure in which a shell constituted by a support and a natural rock are integrated by positively utilizing the natural forces (resistive force, supporting force) that the natural rock originally has. The structure is to form a tunnel.Therefore, rock bolts and shotcrete are used as the main supports to maximize the strength of the ground.) On the bottom plate of the tank, a feed wheel provided with a large number of radial blades directed outward in the outer peripheral direction is provided, and while rotating through, for example, a worm gear, an agitator is provided on the wheel to disperse the powder between the blades. The carrier air from the air supply pipe was used to discharge from the discharge pipe.
［発明が解決しようとする課題］ 上記装置において、微粒粉体が圧気で圧縮されブレード
上でアーチ状になる。この為ブレード間に粉体が充分充
填されず、計量が不正確であった。したがって、中コン
クリートとの混合が合わないで、吹付けロスが発生し、
また、飛散して粉塵の原因となっていた。[Problems to be Solved by the Invention] In the above apparatus, the fine powder is compressed by compressed air to form an arch on the blade. Therefore, the powder was not sufficiently filled between the blades, and the measurement was inaccurate. Therefore, mixing with medium concrete does not match, spraying loss occurs,
In addition, it was scattered and caused dust.
本発明は、正確な計量をすることができる粉体圧送計量
装置を提供することを目的としている。An object of the present invention is to provide a powder pressure-feeding / metering device that can perform accurate weighing.
［課題を解決するための手段］ 本発明によれば、筒状タンクの底板上に摺接し多数の計
量孔を穿設した計量板を回転自在に設け、該計量板の軸
線に偏心し可変速モータで回転する回転軸に設けたピニ
オンをギヤを介して前記計量板のインターナルギヤに連
係し、該回転軸に前記計量孔に粉体を充填する撹拌装置
を設けると共に、タンク内の圧力と粉体送出部の圧力と
をバランスさせるためのバイパス管を設けている。[Means for Solving the Problems] According to the present invention, a measuring plate having a large number of measuring holes slidably contacting a bottom plate of a cylindrical tank is rotatably provided, and the axis of the measuring plate is eccentric to a variable speed. A pinion provided on a rotating shaft rotated by a motor is linked to an internal gear of the measuring plate via a gear, and the rotating shaft is provided with a stirring device for filling the measuring hole with powder, and the pressure in the tank is A bypass pipe is provided to balance the pressure of the powder delivery section.
上記撹拌装置は、回転軸の頂部に等長のアームを設け、
該アームの端部からブレードを垂設し、該ブレードの端
面で計量孔に充填して粉体を掻き均すように構成するの
が好ましい。The stirring device is provided with an arm of equal length on the top of the rotating shaft,
It is preferable that a blade is provided vertically from the end of the arm, and the end face of the blade is filled in a measuring hole to scrape and level the powder.
また、送気管は、計量板に摺接するスライド板に開口
し、該開口部を計量孔より若干大径に形成し、底板に該
開口部に対向する開口部を形成して排出管に連結するの
が好ましい。Further, the air supply pipe is opened in a slide plate that is in sliding contact with the measuring plate, the opening is formed to have a diameter slightly larger than that of the measuring hole, and the bottom plate is formed with an opening facing the opening to connect to the discharge pipe. Is preferred.
［作用］ 上記のように構成された粉体圧送計量装置においては、
回転する計量板の計量孔に粉体を充分充填させるには、
逆方向に回転する撹拌装置のブレードにより圧入掻き均
され正確に計量され、計量孔１個分づつが送気管からの
搬送空気により排出管から排出される。そして、バイパ
ス管により搬送空気の圧力変動がなくなり、計量数とス
ライド板および底板とのクリアランスから粉体が洩出し
ない。[Operation] In the powder pressure-feeding and weighing apparatus configured as described above,
To fully fill the measuring holes of the rotating measuring plate with powder,
The blades of the agitating device rotating in the opposite direction press-fit and scrape the surface to accurately measure, and the metering holes are discharged from the discharge pipe by the carrier air from the air supply pipe. The bypass pipe eliminates the pressure fluctuation of the carrier air, and the powder does not leak from the measured number and the clearance between the slide plate and the bottom plate.
［実施例］ 以下図面を参照して本発明の実施例を説明する。Embodiments Embodiments of the present invention will be described below with reference to the drawings.
図において、筒状のタンク１の頂部には、蓋２がボルト
結合され、底部には底板14が固設されている。In the figure, a lid 2 is bolted to the top of a cylindrical tank 1, and a bottom plate 14 is fixedly attached to the bottom.
その底板14上には、多数の計量孔13が穿設された計量板
12が底板14に印篭嵌合されて摺動回転自在に設けられて
いる。A measuring plate having a large number of measuring holes 13 formed on the bottom plate 14.
A bottom plate (14) is fitted in a basket and provided so as to be slidably rotatable.
他方、可変速モータ18にベルト19及びプーリ20を介して
回転される回転軸11が、底板14及び計量板12の後記する
インターナルギヤ11を貫通して立設されている。この回
転軸11は、底板14及び計量板12の軸線から偏心されてお
り、その計量板12に対向する部分には、ピニオン15が設
けられている。On the other hand, a rotary shaft 11 rotated by a variable speed motor 18 via a belt 19 and a pulley 20 is erected upright through a bottom plate 14 and an internal gear 11 which will be described later. The rotating shaft 11 is eccentric from the axes of the bottom plate 14 and the measuring plate 12, and a pinion 15 is provided at a portion facing the measuring plate 12.
このピニオン15には、インターナルギヤ17に噛み合うギ
ヤ16が噛み合わされており、また、回転軸の頂部には、
撹拌装置10が取付けられている。その撹拌装置10には、
計量板12に対し逆方向に回転する等長のアーム10a、10b
が取付けられている。それらのアーム10a、10bの端部か
らブレード9a、9bがそれぞれ垂設されており、図示の位
置において、手前側のブレード9aは計量板12に摺接して
計量孔13に粒体を圧入掻き均すようになっており、他方
のブレード9bはタンク底部の粉体を撹拌するようになっ
ている。A gear 16 that meshes with the internal gear 17 is meshed with the pinion 15, and the top of the rotary shaft is
A stirrer 10 is attached. The stirring device 10 includes
Arms 10a, 10b of equal length that rotate in the opposite direction to the weighing plate 12
Is installed. Blades 9a and 9b are respectively hung from the ends of the arms 10a and 10b, and at the position shown in the figure, the front blade 9a is brought into sliding contact with the weighing plate 12 and presses and granulates the granules into the weighing holes 13. The other blade 9b is configured to stir the powder at the bottom of the tank.
また、計量板12に摺接するスライド板８が設けられ送気
管６が連結され、その送気管６の図示しない開口部は、
計量孔13を常時２ケカバーするよう大径に形成されてい
る。他方、底板14には、該開口部に対向して図示しない
開口部が形成され、その開口部には、排出管７が連結さ
れている。そして、送気管６は、バイパス管５により粉
体沈降部３を介してタンク１内に連通されている。な
お、図中の符号４、４は、バイパス管５の清掃用プラグ
であり、また、回転軸11、ピニオン15、ギヤ16及びイン
ターナルギヤ17は、図示しないカバーで粉体から密閉さ
れている。Further, a slide plate 8 which is in sliding contact with the measuring plate 12 is provided to connect the air supply pipe 6, and an opening (not shown) of the air supply pipe 6 is
It has a large diameter so as to cover the measuring hole 13 twice at all times. On the other hand, the bottom plate 14 is formed with an opening (not shown) facing the opening, and the discharge pipe 7 is connected to the opening. The air supply pipe 6 is connected to the inside of the tank 1 by the bypass pipe 5 via the powder settling unit 3. Reference numerals 4 and 4 in the drawing are plugs for cleaning the bypass pipe 5, and the rotary shaft 11, the pinion 15, the gear 16 and the internal gear 17 are sealed from powder by a cover (not shown). .
計量に際し、タンク１に所定量の粉体を投入し、蓋２を
閉じ、モータ18を作動すると共に、送気管６から搬送空
気を圧送する。すると、回転する計量板12の計量孔13に
は、逆方向に回転する撹拌装置10のブレード9a、9bで粉
体が圧入充填され掻き均され、正確に計量される。そし
て、スライド板８において、計量孔13内の粉体は、計量
孔１個分づつ送気管６から圧送された空気により底板14
の開口部を介して排出管７から排出される。この際、バ
イパス管５により送気管６とタンク１内との圧力がバラ
ンスされているので、搬送空気の圧力に変動があって
も、計量板13とスライド板８及び底板14との間のクリア
ランスから粉体が洩出するのが防止される。At the time of measurement, a predetermined amount of powder is put into the tank 1, the lid 2 is closed, the motor 18 is operated, and the carrier air is pressure-fed from the air supply pipe 6. Then, the powder is press-fitted into the measuring hole 13 of the rotating measuring plate 12 by the blades 9a and 9b of the stirring device 10 rotating in the opposite direction, scraped and leveled, and accurately measured. Then, in the slide plate 8, the powder in the measuring hole 13 is divided into the bottom plate 14 by the air pressure-fed from the air supply pipe 6 for each measuring hole.
It is discharged from the discharge pipe 7 through the opening. At this time, since the pressure between the air supply pipe 6 and the inside of the tank 1 is balanced by the bypass pipe 5, even if the pressure of the carrier air fluctuates, the clearance between the measuring plate 13 and the slide plate 8 and the bottom plate 14 becomes large. The powder is prevented from leaking out.
なお、本装置により生コンクリートを計量搬送する場合
は、タンクの上部を開放し、バイパス管を省いて計量板
と計量孔を大径にして対応することができる。When the fresh concrete is metered and conveyed by this device, the upper part of the tank can be opened, the bypass pipe can be omitted, and the metering plate and the metering hole can be made larger in diameter.
［発明の効果］ 本発明は、以上説明したように構成されているので、計
量孔に圧入充填された粉体をブレードで掻き均して正確
に計量し、計量孔１個分づつの粉体を排出して粉体を正
確に計量し、圧送することができる。EFFECTS OF THE INVENTION Since the present invention is configured as described above, the powder press-filled into the measuring hole is scraped and evenly measured with a blade to accurately measure the powder for each one measuring hole. The powder can be discharged accurately, and the powder can be accurately fed.
図は本発明の一実施例を示す斜視図である。 １……タンク、６……送気管、７……排出管、８……ラ
スイド板、9a、9b……ブレード、10……撹拌装置、11…
…回転軸、12……計量板、13……計量孔、14……底板、
18……可変速モータFIG. 1 is a perspective view showing an embodiment of the present invention. 1 ... Tank, 6 ... Air supply pipe, 7 ... Discharge pipe, 8 ... Lasid plate, 9a, 9b ... Blade, 10 ... Stirrer, 11 ...
… Rotary axis, 12 …… Measuring plate, 13 …… Measuring hole, 14 …… Bottom plate,
18 ... Variable speed motor
Claims (1)
を穿設した計量板を回転自在に設け、該計量板の軸線に
偏心し可変速モータで回転する回転軸に設けたピニオン
をギヤを介して前記計量板のインターナルギヤに連係
し、該回転軸に前記計量孔に粉体を充填する撹拌装置を
設けると共に、タンク内の圧力と粉体送出部の圧力とを
バランスさせるためのバイパス管を設けたことを特徴と
する粒体圧送計量装置。1. A pinion provided on a rotary shaft rotatably provided on a bottom plate of a cylindrical tank and rotatably provided with a large number of measuring holes and eccentric to the axis of the measuring plate and rotated by a variable speed motor. Via a gear to the internal gear of the measuring plate, and a stirring device for filling the measuring hole with powder is provided on the rotating shaft, and the pressure in the tank and the pressure in the powder feeding portion are balanced. A granular pressure-feeding and metering device, which is provided with a bypass pipe for
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2269497A JPH0674991B2 (en) | 1990-10-09 | 1990-10-09 | Powder pressure metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2269497A JPH0674991B2 (en) | 1990-10-09 | 1990-10-09 | Powder pressure metering device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04147017A JPH04147017A (en) | 1992-05-20 |
| JPH0674991B2 true JPH0674991B2 (en) | 1994-09-21 |
Family
ID=17473254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2269497A Expired - Lifetime JPH0674991B2 (en) | 1990-10-09 | 1990-10-09 | Powder pressure metering device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0674991B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0638402A1 (en) * | 1993-08-09 | 1995-02-15 | Sika AG, vorm. Kaspar Winkler & Co. | Apparatus for dosing pulverized solid materials |
| CN116251502A (en) * | 2023-04-11 | 2023-06-13 | 大连万慷工业科技有限公司 | A metering disc assembly for continuous equal dose feeding |
-
1990
- 1990-10-09 JP JP2269497A patent/JPH0674991B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04147017A (en) | 1992-05-20 |
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