JPH07109018A - Powder carrying chute equipment having porous inner tube - Google Patents
Powder carrying chute equipment having porous inner tubeInfo
- Publication number
- JPH07109018A JPH07109018A JP27886893A JP27886893A JPH07109018A JP H07109018 A JPH07109018 A JP H07109018A JP 27886893 A JP27886893 A JP 27886893A JP 27886893 A JP27886893 A JP 27886893A JP H07109018 A JPH07109018 A JP H07109018A
- Authority
- JP
- Japan
- Prior art keywords
- air
- powder
- inner tube
- sealed space
- valve
- 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.)
- Granted
Links
Landscapes
- Chutes (AREA)
- Air Transport Of Granular Materials (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、例えば粉体供給装置、
特に付着性の強い粉体を供給する粉体供給装置に適用さ
れる多孔性内管を備えた粉体搬送用シュート装置に関す
る。BACKGROUND OF THE INVENTION The present invention relates to a powder supply device,
In particular, the present invention relates to a powder-conveying chute device having a porous inner tube, which is applied to a powder-supplying device that supplies powder having strong adhesion.
【０００２】[0002]
【従来の技術】粉体供給装置には、従来から粉体搬送用
シュート装置が備えられている。この粉体搬送用シュー
ト装置を説明する前に、先ず粉体供給装置の一従来例の
概要を説明する。粉体供給装置は、粉体を収容する収容
ホッパと、収容ホッパ内に収容された粉体を排出するス
クリュー式あるいは回転テーブル式等のフィーダとを備
えている。収容ホッパの下方にはフィーダによって排出
された粉体を収容する計量ホッパと、計量ホッパ内に収
容された粉体の重量を測定するロードセルとが配置され
ている。計量ホッパの下方には計量ホッパ内の粉体を排
出する開閉ダンパが設けられている。開閉ダンパの下方
にはシュート装置及び粉体収容容器が配置されている。
フィーダの作動により収容ホッパ内の粉体が計量ホッパ
内に排出される。計量ホッパ内に排出された粉体の量が
設定値に達すると、ロードセルからの信号に基づいてフ
ィーダの作動が停止され、開閉ダンパが開作動される。
計量ホッパ内の粉体は、シュート装置を介して粉体収容
容器内に搬出される。計量ホッパ内の粉体が搬出され終
わると開閉ダンパが閉作動される。概ね以上の作動が繰
り返して行なわれる。2. Description of the Related Art A powder feeding device has conventionally been provided with a powder conveying chute device. Before describing the powder conveying chute device, an outline of a conventional example of the powder supply device will be described first. The powder supply device includes a storage hopper that stores the powder, and a screw-type or rotary table-type feeder that discharges the powder stored in the storage hopper. Below the storage hopper, a weighing hopper that stores the powder discharged by the feeder and a load cell that measures the weight of the powder stored in the weighing hopper are arranged. An opening / closing damper for discharging the powder in the weighing hopper is provided below the weighing hopper. A chute device and a powder container are arranged below the opening / closing damper.
The powder in the storage hopper is discharged into the weighing hopper by the operation of the feeder. When the amount of the powder discharged into the weighing hopper reaches the set value, the operation of the feeder is stopped based on the signal from the load cell, and the opening / closing damper is opened.
The powder in the weighing hopper is carried into the powder container via the chute device. When the powder in the weighing hopper has been carried out, the opening / closing damper is closed. The above operation is repeatedly performed.
【０００３】[0003]
【発明が解決しようとする課題】前記したように、計量
ホッパと粉体収容容器との間には、シュート装置が配置
されている。このシュート装置は、一般に無孔質材料か
らなる管、例えば金属管から構成され、この金属管を通
して粉体を搬送している。粉体が金属管内を通過する過
程において、その一部はその内壁面に付着し、堆積す
る。この粉体の付着・堆積が激しく、金属管が詰まるこ
とさえあった。その結果、ロードセルによって計量ホッ
パ内の粉体が正しく計量されたにもかかわらず、粉体収
容容器内に供給された粉体の量が、前記付着・堆積によ
り所定量より少なくなったり、また逆に付着・堆積した
粉体の落下により所定量より多くなったりする、との不
具合が発生している。As described above, the chute device is arranged between the weighing hopper and the powder container. The chute device is generally composed of a tube made of a non-porous material, for example, a metal tube, and conveys powder through the metal tube. During the process in which the powder passes through the inside of the metal tube, a part of the powder adheres to the inner wall surface and accumulates. The adhesion and deposition of this powder was so severe that it even clogged the metal tube. As a result, even though the powder in the weighing hopper was correctly weighed by the load cell, the amount of powder supplied to the powder container became less than the predetermined amount due to the adhesion and deposition, and vice versa. There is a problem that the amount of powder adhering to and accumulating on the surface of the powder may drop more than a predetermined amount.
【０００４】前記の不具合を解消するため、シュート装
置に複数個のエアノッカを備えたものが知られている。
すなわちエアノッカを作動させることにより、金属管に
繰り返し衝撃を与え、その内壁面に付着した粉体を落下
させようとするものである。この方法によれば相当の効
果は得られるものの、騒音が激しく、例えば１２０フォ
ーンに達する例もある。その結果、作業環境を著しく損
なう、との大きな問題が付随し、早期の改善が望まれて
いた。In order to solve the above problems, it is known that a chute device is provided with a plurality of air knockers.
That is, by operating the air knocker, a shock is repeatedly applied to the metal pipe, and the powder adhering to the inner wall surface of the metal pipe is dropped. Although a considerable effect can be obtained by this method, there are some cases where the noise is intense and reaches, for example, 120 phones. As a result, there is a big problem that the work environment is significantly impaired, and an early improvement is desired.
【０００５】本発明は、以上の事実に基づいてなされた
もので、その目的は、作業環境を損なうことなく、粉体
の付着・堆積を確実に防止できる、多孔性内管を備えた
粉体搬送用シュート装置を提供することである。The present invention has been made on the basis of the above facts, and an object thereof is to provide a powder having a porous inner tube capable of reliably preventing the adhesion and deposition of the powder without damaging the working environment. A chute device for transportation is provided.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するた
め、本発明によれば、粉体の搬送通路である内管と、該
内管の外周との間に実質上密封空間が形成されるよう配
設された外管と、該密封空間に圧力空気を供給する圧力
空気供給手段とを備え、該内管は多孔性材料により構成
されたことを特徴とする多孔性内管を備えた粉体搬送用
シュート装置、が提供される。To achieve the above object, according to the present invention, a substantially sealed space is formed between an inner tube which is a powder transfer passage and an outer circumference of the inner tube. Powder provided with a porous inner tube characterized in that the inner tube is made of a porous material. A chute device for transporting a body is provided.
【０００７】上記目的を達成するため、本発明によれ
ば、更に、粉体の搬送通路である内管と、該内管の外周
との間に実質上密封空間が形成されるよう配設された外
管と、該密封空間に圧力空気を供給する圧力空気供給手
段とを備え、該圧力空気供給手段は、空気圧発生手段
と、該空気圧発生手段と該密封空間とを連通する空気流
路手段と、該空気流路手段を開閉する開閉弁と、該開閉
弁を開閉作動させる開閉弁制御手段とを備え、該内管は
多孔性材料により構成されたことを特徴とする多孔性内
管を備えた粉体搬送用シュート装置、が提供される。In order to achieve the above object, according to the present invention, it is further arranged so that a substantially sealed space is formed between an inner tube which is a powder transfer passage and an outer circumference of the inner tube. An outer tube and a pressure air supply unit for supplying pressure air to the sealed space, the pressure air supply unit including an air pressure generation unit, and an air flow path unit communicating the air pressure generation unit with the sealed space. And an opening / closing valve for opening / closing the air flow path means, and an opening / closing valve control means for opening / closing the opening / closing valve, wherein the inner tube is made of a porous material. Provided is a powder conveying chute device.
【０００８】[0008]
【作用】本発明の一形態である多孔性内管を備えた粉体
搬送用シュート装置は、粉体の搬送通路である内管と、
内管の外周との間に実質上密封空間が形成されるよう配
設された外管と、密封空間に圧力空気を供給する圧力空
気供給手段とを備えている。そして前記内管は多孔性材
料により構成されている。圧力空気供給手段により密封
空間に供給された圧力空気は、内管の微細な孔を通過し
て、内管の内壁面から粉体の搬送路である内管の内側に
向かって均一に流出（噴出）させられる。その結果、内
管の内壁面に付着した粉体は、内管の内面から流出する
空気により強制的に剥離・浮遊させられて自然落下させ
られる。また内管の内壁面から前記の通り空気の流出が
行なわれている間は、内管内を通過中の粉体の付着も確
実に防止される。その結果、このシュート装置が粉体供
給装置に適用された場合には、粉体収容容器に所定量の
粉体を正確に供給することが可能となる。また激しい騒
音の発生源であるエアノッカを使用する必要もないの
で、作業環境は従来に較べて著しく改善される。According to the present invention, there is provided a chute device for powder conveyance having a porous inner tube, which is an embodiment of the present invention.
An outer pipe arranged so as to form a substantially sealed space between the inner pipe and the outer periphery of the inner pipe, and a pressurized air supply unit for supplying pressurized air to the sealed space. The inner tube is made of a porous material. The pressure air supplied to the sealed space by the pressure air supply means passes through the fine holes of the inner tube and uniformly flows out from the inner wall surface of the inner tube to the inner side of the inner tube which is the powder transfer path ( Be spouted). As a result, the powder adhering to the inner wall surface of the inner pipe is forcibly separated and floated by the air flowing out from the inner surface of the inner pipe, and is naturally dropped. Further, while the air is flowing out from the inner wall surface of the inner tube as described above, the adhesion of the powder passing through the inner tube is surely prevented. As a result, when this chute device is applied to a powder supply device, it becomes possible to accurately supply a predetermined amount of powder to the powder container. Further, since it is not necessary to use an air knocker which is a source of intense noise, the working environment is remarkably improved as compared with the conventional one.
【０００９】圧力空気供給手段が、空気圧発生手段と、
空気圧発生手段と密封空間とを連通する空気流路手段と
を備え、圧力空気発生手段が送風機により構成された場
合には、送風機を作動させることにより、圧力空気を、
スムーズかつ迅速にしかも一定の圧力で所定の時間継続
的に密封空間内に供給することができる。この構成は、
内管の直径が比較的大きく多量の圧力空気を必要とする
場合に有効である。The pressure air supply means includes an air pressure generation means,
An air flow path means for communicating the air pressure generating means and the sealed space is provided, and when the pressure air generating means is constituted by a blower, the pressure air is operated by operating the blower,
It is possible to supply smoothly and quickly into the sealed space at a constant pressure and continuously for a predetermined time. This configuration
This is effective when the diameter of the inner tube is relatively large and a large amount of compressed air is required.
【００１０】圧力空気供給手段が、空気圧発生手段と、
空気圧発生手段と密封空間とを連通する空気流路手段
と、空気圧発生手段の作動を制御する作動制御手段とを
備え、作動制御手段が、空気圧発生手段からの圧力空気
が密封空間にパルス的に供給されるよう空気圧発生手段
の作動を制御するパルス制御手段を含むよう構成された
場合には、パルス制御手段による指令に基づいて、空気
圧発生手段は、所定のタイミングで作動及び作動停止を
繰り返し行なうよう制御される。その結果、密封空間に
は圧力空気がパルス的に供給され、内管の内壁面に付着
した粉体の剥離・浮遊が効果的に行なわれる。The pressure air supply means includes an air pressure generation means,
An air flow path means for communicating the air pressure generating means and the sealed space, and an operation control means for controlling the operation of the air pressure generating means, wherein the operation control means is such that the pressure air from the air pressure generating means is pulsed into the sealed space. When configured to include pulse control means for controlling the operation of the air pressure generating means so as to be supplied, the air pressure generating means repeatedly performs operation and deactivation at a predetermined timing based on a command from the pulse control means. Controlled. As a result, pressurized air is supplied to the sealed space in a pulsed manner, and the powder adhering to the inner wall surface of the inner tube is effectively separated and suspended.
【００１１】本発明の他の形態である多孔性内管を備え
た粉体搬送用シュート装置は、粉体の搬送通路である内
管と、内管の外周との間に実質上密封空間が形成される
よう配設された外管と、密封空間に圧力空気を供給する
圧力空気供給手段とを備えている。そして圧力空気供給
手段が、空気圧発生手段と、空気圧発生手段と密封空間
とを連通する空気流路手段と、空気流路手段を開閉する
開閉弁と、開閉弁を開閉作動させる開閉弁制御手段とを
備え、内管は多孔性材料により構成されている。この構
成の場合、開閉弁の上流側において、空気圧発生手段に
より予め圧力空気を貯蔵しておくことが可能である。し
たがって、開閉弁制御手段により開閉弁を開くことによ
り、空気圧発生手段からの圧力空気を衝撃的に密封空間
内に供給することができる。開閉弁が継続して開かれて
いる間は、圧力空気は継続して密封空間内に供給され
る。この構成によれば、開閉弁が開いた直後の圧力空気
の衝撃的な供給及びその後の継続的供給によって、内管
の内壁面に付着した粉体の剥離・浮遊が効果的に行なわ
れる。According to another aspect of the present invention, there is provided a chute device for powder transfer having a porous inner tube, wherein a substantially sealed space is provided between the inner tube which is a powder transfer passage and the outer circumference of the inner tube. It is provided with an outer tube arranged to be formed, and a pressure air supply means for supplying pressure air to the sealed space. The compressed air supply means includes an air pressure generation means, an air flow path means for communicating the air pressure generation means with the sealed space, an opening / closing valve for opening / closing the air flow path means, and an opening / closing valve control means for opening / closing the opening / closing valve. And the inner tube is made of a porous material. In the case of this configuration, it is possible to store the compressed air in advance by the air pressure generating means on the upstream side of the on-off valve. Therefore, by opening the on-off valve by the on-off valve control means, the compressed air from the air pressure generating means can be shockedly supplied into the sealed space. The pressurized air is continuously supplied into the sealed space while the on-off valve is continuously opened. According to this configuration, the powder adhered to the inner wall surface of the inner pipe is effectively separated and suspended by the shocking supply of the compressed air immediately after the opening and closing valve is opened and the continuous supply thereafter.
【００１２】以上の構成において、開閉弁制御手段が、
空気圧発生手段からの圧力空気が開閉弁を介して密封空
間にパルス的に供給されるよう開閉弁を制御するパルス
制御手段を含むよう構成された場合には、パルス制御手
段による指令に基づいて、開閉弁は、所定のタイミング
で開閉作動を繰り返し行なうよう制御される。その結
果、圧力空気の衝撃的な供給が繰り返し行なわれ、内管
の内壁面に付着した粉体の剥離・浮遊が効果的に行なわ
れる。In the above structure, the on-off valve control means is
When configured to include pulse control means for controlling the on-off valve so that the pressure air from the air pressure generating means is supplied in a pulsed manner to the sealed space through the on-off valve, based on a command from the pulse control means, The on-off valve is controlled to repeatedly open and close at a predetermined timing. As a result, the shocking supply of the compressed air is repeatedly performed, and the powder adhering to the inner wall surface of the inner tube is effectively separated and suspended.
【００１３】また前記した本発明の他の形態における構
成において、空気流路手段が、空気圧発生手段に連通さ
れた一本の主流路と、主流路から分岐してそれぞれ外管
の円周部に軸方向に間隔を置いて配設された複数の空気
入口を介して密封空間内に開口する分岐流路とを含み、
開閉弁が分岐流路の各々に設けられた場合には、開閉弁
制御手段により開閉弁の各々を同時に開くことにより、
空気圧発生手段からの圧力空気を、外管の各空気入口を
介して密封空間内に衝撃的に供給することができる。各
空気入口は外管の円周部に軸方向に間隔を置いて配設さ
れているので、圧力空気による衝撃波は、各空気入口か
ら内管の外周面の対応する部分に衝突する。各開閉弁が
継続して開かれている間は、圧力空気は継続して密封空
間内に供給される。この構成によれば、各開閉弁が開い
た直後の圧力空気の衝撃的な供給を受ける箇所及びその
後の継続的供給を受ける箇所がそれぞれ多くなるので、
内管の内壁面に付着した粉体の剥離・浮遊が一層効果的
に行なわれる。開閉弁制御手段を適宜構成することによ
り、各開閉弁の開弁作動形態を自由に設定することがで
きる。例えば、各開閉弁を、シュート装置の上流側から
下流側に向かって順に１個ずつ開く、あるいは各開閉弁
のうち上流側の幾つかを同時に開き、次いで下流側の残
りを同時に開く、等の制御は自由である。Further, in the above-mentioned configuration according to another aspect of the present invention, the air flow passage means is provided with one main flow passage communicating with the air pressure generating means, and the air flow passage means is branched from the main flow passage to the circumferential portion of the outer pipe. A branch flow path opening into the sealed space through a plurality of air inlets arranged at intervals in the axial direction,
When an on-off valve is provided in each of the branch flow paths, by simultaneously opening each of the on-off valves by the on-off valve control means,
The pressurized air from the air pressure generating means can be shockedly supplied into the sealed space through each air inlet of the outer tube. Since the air inlets are axially arranged at intervals in the circumferential portion of the outer tube, the shock wave caused by the pressure air collides with the corresponding portion of the outer peripheral surface of the inner tube from each air inlet. The pressurized air is continuously supplied into the sealed space while each on-off valve is continuously opened. According to this configuration, there are many places where the on-off valve receives the shocking supply of the compressed air immediately after opening and after that, there are many places where the continuous supply is received.
The powder adhering to the inner wall surface of the inner pipe is more effectively separated and floated. By appropriately configuring the opening / closing valve control means, the opening operation mode of each opening / closing valve can be freely set. For example, open each on-off valve one by one from the upstream side to the downstream side of the chute device, or open some of the on-off valves on the upstream side at the same time and then open the rest on the downstream side at the same time. Control is free.
【００１４】また前記した本発明の他の形態における構
成において、空気流路手段が、空気圧発生手段に連通さ
れた一本の主流路と、主流路から分岐してそれぞれ外管
の円周部に軸方向に間隔を置いて配設された複数の空気
入口を介して密封空間内に開口する分岐流路とを含み、
開閉弁が分岐流路の各々に設けられ、更に、開閉弁制御
手段が、空気圧発生手段からの圧力空気が開閉弁を介し
て密封空間にパルス的に供給されるよう開閉弁を制御す
るパルス制御手段を含むよう構成された場合には、開閉
弁制御手段により、開閉弁の各々は同時に、所定のタイ
ミングで開閉作動を繰り返し行なうよう制御される。内
管の内壁面に付着した粉体の剥離・浮遊は更に一層効果
的に行なわれる。パルス制御手段を適宜構成することに
より、各開閉弁の作動形態は自由に設定することができ
る。例えば、各開閉弁を、シュート装置の上流側から下
流側に向かって順に１個ずつ所定のタイミングで開閉作
動させ、このサイクルを繰り返す、あるいは各開閉弁の
うち上流側の幾つかを同時に所定のタイミングで開閉作
動させ、次いで下流側の残りを同時に所定のタイミング
で開閉作動させ、このサイクルを繰り返す、等の制御は
自由である。Further, in the above-described configuration of another embodiment of the present invention, the air flow passage means is provided with one main flow passage communicating with the air pressure generating means, and the air flow passage means is branched from the main flow passage to the outer circumferential portion of the outer pipe. A branch flow path opening into the sealed space through a plurality of air inlets arranged at intervals in the axial direction,
An on-off valve is provided in each of the branch passages, and the on-off valve control means controls the on-off valve so that the pressure air from the air pressure generating means is pulsed to the sealed space through the on-off valve. When configured so as to include means, each of the on-off valves is controlled by the on-off valve control means to simultaneously perform the opening / closing operation at a predetermined timing. The separation and floating of the powder adhering to the inner wall surface of the inner pipe is performed even more effectively. By appropriately configuring the pulse control means, the operating form of each on-off valve can be freely set. For example, each of the on-off valves is opened and closed one by one from the upstream side to the downstream side of the chute device at a predetermined timing, and this cycle is repeated, or some of the on-off valves at the upstream side are simultaneously operated at a predetermined timing. It is possible to freely control such as opening and closing at a timing, then opening and closing the rest of the downstream side at a predetermined timing at the same time, and repeating this cycle.
【００１５】[0015]
【実施例】以下、添付図面を参照しながら、本発明に従
って改良された多孔性内管を備えた粉体搬送用シュート
装置を、粉体供給装置に適用された実施例に基づいて詳
細に説明する。まず、粉体供給装置の概要を説明する。
図１を参照して、全体を番号２で示す粉体供給装置は、
粉体を収容する収容ホッパ４と、収容ホッパ４内に収容
された粉体を排出するスクレーパ式のフィーダ６（図に
は示されていない）とを備えている。フィーダ６は、図
示しないスクレーパを作動させるエアシリンダ、収容ホ
ッパ４内の底部に設けられた図示しない回転テーブル等
を含み、この回転テーブルは、電動モータＭにより回転
駆動される。収容ホッパ４の下方にはフィーダ６によっ
て排出された粉体を収容する計量ホッパ８と、計量ホッ
パ８内に収容された粉体の重量を測定するロードセル１
０とが配置されている。計量ホッパ８の下方には計量ホ
ッパ８内の粉体を排出する図示しない開閉ダンパが設け
られている。開閉ダンパはエアシリンダ１１により作動
される。開閉ダンパの下方には後に詳述するシュート装
置１２及び粉体収容容器１４が配置されている。なお番
号２０は集塵用のダクトの一部を示す。フィーダ６の作
動により収容ホッパ４内の粉体が計量ホッパ８内に排出
される。計量ホッパ８内に供給された粉体の量が設定値
に達すると、ロードセル１０からの信号に基づいてフィ
ーダ６の作動が停止され、開閉ダンパが開かれる。計量
ホッパ８内の粉体は、シュート装置１２を介して粉体収
容容器１４内に搬出される。計量ホッパ８内の粉体が搬
出され終わると開閉ダンパが閉じる。概ね以上の作動が
繰り返して行なわれる。以上のような構成及び作用を有
する粉体供給装置２は、本発明に係るシュート装置１２
を除き、公知である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a powder conveying chute device having a porous inner tube improved according to the present invention will be described in detail with reference to the accompanying drawings based on an embodiment applied to a powder feeding device. To do. First, the outline of the powder supply device will be described.
With reference to FIG. 1, a powder supply apparatus indicated by reference numeral 2 as a whole is
A storage hopper 4 for storing the powder and a scraper-type feeder 6 (not shown) for discharging the powder stored in the storage hopper 4 are provided. The feeder 6 includes an air cylinder for operating a scraper (not shown), a rotary table (not shown) provided at the bottom of the storage hopper 4, and the like. The rotary table is rotationally driven by an electric motor M. Below the storage hopper 4, a weighing hopper 8 for storing the powder discharged by the feeder 6, and a load cell 1 for measuring the weight of the powder stored in the weighing hopper 8.
0 and are arranged. Below the weighing hopper 8, an open / close damper (not shown) for discharging the powder in the weighing hopper 8 is provided. The opening / closing damper is operated by the air cylinder 11. Below the opening / closing damper, a chute device 12 and a powder container 14 to be described later are arranged. The number 20 indicates a part of the dust collecting duct. The powder in the storage hopper 4 is discharged into the weighing hopper 8 by the operation of the feeder 6. When the amount of powder supplied into the weighing hopper 8 reaches the set value, the operation of the feeder 6 is stopped based on the signal from the load cell 10 and the open / close damper is opened. The powder in the weighing hopper 8 is carried out into the powder container 14 via the chute device 12. When the powder in the weighing hopper 8 has been carried out, the opening / closing damper is closed. The above operation is repeatedly performed. The powder supply device 2 having the above-described configuration and operation is the chute device 12 according to the present invention.
, Except that they are publicly known.
【００１６】なお、図示はしていないが、粉体供給装置
２には、全体の作動を制御する制御手段が備えられてい
る。この制御手段は、制御部と操作部とを備えている。
制御部は、制御プログラムに従って演算処理する中央処
理手段と、制御プログラムを格納するＲＯＭ及び重量測
定データや計量設定値等を格納する読み書き可能なＲＡ
Ｍとを有する記憶手段と、作動時間を計時するタイマ、
入出力インターフェース等を備えている。操作部は、電
源スイッチ、装置作動スイッチ、計量設定値等を直接入
力するテンキー等の各種入力キーが配設された操作盤か
らなり、装置作動指令信号や計量設定値信号等を前記制
御部に送出する。このように構成された制御手段は、操
作部からの入力信号や前記ロードセル１０からの重量測
定信号に基づき、制御プログラムに従って所定の演算処
理を実行し、フィーダ６の電動モータＭ、スクレーパを
作動させるエアシリンダ、開閉ダンパを作動させるエア
シリンダ１１等に制御信号を出力する。Although not shown, the powder feeding device 2 is provided with a control means for controlling the overall operation. This control means includes a control unit and an operation unit.
The control unit includes a central processing unit that performs arithmetic processing according to the control program, a ROM that stores the control program, and a readable / writable RA that stores weight measurement data, weighing set values, and the like.
Storage means having M, and a timer for measuring the operating time,
It is equipped with an input / output interface. The operation unit consists of an operation panel on which various input keys such as a power switch, a device operation switch, and a numeric keypad for directly inputting a measurement set value, etc. are arranged, and a device operation command signal and a measurement set value signal are sent to the control unit. Send out. The control means configured in this manner executes predetermined arithmetic processing according to a control program based on an input signal from the operation section and a weight measurement signal from the load cell 10 to operate the electric motor M and the scraper of the feeder 6. A control signal is output to the air cylinder, the air cylinder 11 that operates the opening / closing damper, and the like.
【００１７】次に、前記粉体供給装置２に適用された、
本発明に従って改良された多孔性内管を備えた粉体搬送
用シュート装置の一実施例について説明する。図１と共
に図２を参照して、粉体搬送用シュート装置１２は、粉
体の搬送通路である内管２２と、内管２２の外周との間
に実質上密封空間２４が形成されるよう配設された外管
２６と、密封空間２４に圧力空気を供給する圧力空気供
給手段２７とを備えている。圧力空気供給手段２７は、
空気圧発生手段である送風機２８と、送風機２８と密封
空間２４とを連通する空気流路手段であるダクト３０
と、送風機２８の作動を制御する図示しない作動制御手
段とを備えている。送風機２８はこの実施例では電動ブ
ロワにより構成されている。内管２２は多孔性材料、こ
の実施例では多孔性のポリエチレンにより構成されてい
る。内管２２を構成する多孔性材料としては、その他の
多孔性合成樹脂、セラミックあるいは焼結合金等が挙げ
られる。内管２２の外周側には、それを覆うよう、内管
２２より大径の外管２６が配設されている。外管２６は
金属管により構成されている。内管２２の外周面と外管
２６の内周面との間には隙間が設けられ、この隙間は、
内管２２及び外管２６の軸方向両端部において、環状の
シールプレート３２及び３４により密封されている。そ
の結果、内管２２の外周面と外管２６の内周面との間に
形成される前記隙間は、密封空間２４となる。外管２６
の外周部にはダクト３０の一端が連結される管状のジョ
イント部２７が設けられている。電動ブロワ２８の作動
は電動ブロワ２８に関連して配設された図示しないスイ
ッチ、例えば常開リレーにより行なわれる。電動ブロワ
２８の作動を制御する前記作動制御手段は、前記制御手
段の制御部に備えられ、前記リレーに制御信号が出力さ
れるよう構成されている。Next, applied to the powder supply device 2,
An embodiment of a powder conveying chute device having a porous inner tube improved according to the present invention will be described. Referring to FIG. 1 as well as FIG. 2, the powder transfer chute device 12 is configured such that a substantially sealed space 24 is formed between an inner tube 22 which is a powder transfer passage and an outer periphery of the inner tube 22. It is provided with an outer tube 26 provided and a pressure air supply means 27 for supplying pressure air to the sealed space 24. The pressure air supply means 27 is
A blower 28 that is an air pressure generating means, and a duct 30 that is an air flow path means that connects the blower 28 and the sealed space 24.
And an operation control means (not shown) for controlling the operation of the blower 28. The blower 28 is composed of an electric blower in this embodiment. The inner tube 22 is made of a porous material, in this embodiment porous polyethylene. Examples of the porous material forming the inner tube 22 include other porous synthetic resins, ceramics, sintered alloys, and the like. An outer pipe 26 having a diameter larger than that of the inner pipe 22 is arranged on the outer peripheral side of the inner pipe 22 so as to cover it. The outer tube 26 is composed of a metal tube. A gap is provided between the outer peripheral surface of the inner pipe 22 and the inner peripheral surface of the outer pipe 26.
The inner pipe 22 and the outer pipe 26 are sealed at both axial ends by annular seal plates 32 and 34. As a result, the gap formed between the outer peripheral surface of the inner pipe 22 and the inner peripheral surface of the outer pipe 26 becomes a sealed space 24. Outer tube 26
A tubular joint portion 27 to which one end of the duct 30 is connected is provided on the outer peripheral portion of the. The electric blower 28 is operated by a switch (not shown) provided in association with the electric blower 28, such as a normally open relay. The operation control means for controlling the operation of the electric blower 28 is provided in a control section of the control means, and is configured to output a control signal to the relay.
【００１８】例えば、計量ホッパ８内の粉体が排出し終
わり、開閉ダンパが閉じた後、前記作動制御手段から前
記リレーに制御信号が出力されるとリレーがＯＮとな
り、電動ブロワ２８が作動する（回転する）。これによ
り発生した圧力空気はダクト３０を通って密封空間２４
に供給される。密封空間２４に供給された圧力空気は、
内管２２の微細な孔（例えば直径１０ミクロン）を通過
して、内管２２の内壁面から粉体の搬送路である内管２
２の内側に向かって均一に流出（噴出）させられる（図
２の矢印参照）。その結果、内管２２の内壁面に付着し
た粉体は、内管２２の内面から流出する空気により強制
的に剥離・浮遊させられて粉体収容容器１４に向かって
自然落下させられる。一方、前記開閉ダンパが開いて、
粉体が内管２２内を通過している時に、電動ブロワ２８
が作動させられた場合には、内管２２内を通過中の粉体
の前記内壁面への付着は、流出している空気により確実
に防止される。その結果、粉体収容容器１４には所定量
の粉体が正確に供給される。また激しい騒音の発生源で
あるエアノッカを使用する必要もないので、作業環境は
従来に較べて著しく改善される。電動ブロワ２８の作動
時間は、前記制御手段のタイマにより制御され、タイマ
からの信号により作動制御手段から前記リレーへの制御
信号の出力が停止される。その結果、電動ブロワ２８の
作動は停止する。For example, when the control signal is output from the operation control means to the relay after the powder in the weighing hopper 8 is completely discharged and the opening / closing damper is closed, the relay is turned on and the electric blower 28 is operated. (Rotate). The compressed air generated thereby passes through the duct 30 and the sealed space 24.
Is supplied to. The pressurized air supplied to the sealed space 24 is
The inner tube 2 which is a conveying path for the powder from the inner wall surface of the inner tube 22 through the fine holes (for example, diameter of 10 microns) of the inner tube 22.
2 is uniformly discharged (spouted) toward the inside of 2 (see the arrow in FIG. 2). As a result, the powder adhered to the inner wall surface of the inner tube 22 is forcibly separated and floated by the air flowing out from the inner surface of the inner tube 22, and is naturally dropped toward the powder container 14. On the other hand, the opening and closing damper opens,
When the powder is passing through the inner tube 22, the electric blower 28
When is activated, adhesion of the powder passing through the inner tube 22 to the inner wall surface is reliably prevented by the air flowing out. As a result, a predetermined amount of powder is accurately supplied to the powder container 14. Further, since it is not necessary to use an air knocker which is a source of intense noise, the working environment is remarkably improved as compared with the conventional one. The operation time of the electric blower 28 is controlled by the timer of the control means, and the output of the control signal from the operation control means to the relay is stopped by the signal from the timer. As a result, the operation of the electric blower 28 is stopped.
【００１９】前記作動制御手段の別の構成は、電動ブロ
ワ２８からの圧力空気が密封空間２４にパルス的に供給
されるよう電動ブロワ２８の作動を制御するパルス制御
手段（図示せず）を含んでいる。パルス制御手段による
指令（制御信号）が前記リレーに出力されると、リレー
は、その制御信号に基づいた所定のタイミングでパルス
的に（間欠的に）ＯＮ−ＯＦＦ作動を繰り返すよう制御
される。電動ブロワ２８は、リレーの作動に応じて作動
及び作動停止を繰り返し行なうよう制御される。その結
果、密封空間２４には圧力空気がパルス的に供給され、
内管２２の内壁面に付着した粉体の剥離・浮遊が効果的
に行なわれる。なお、電動ブロワ２８の作動スイッチ
は、手動操作もできるよう構成されることが望ましい。Another structure of the operation control means includes pulse control means (not shown) for controlling the operation of the electric blower 28 so that the pressurized air from the electric blower 28 is supplied to the sealed space 24 in a pulsed manner. I'm out. When the command (control signal) from the pulse control means is output to the relay, the relay is controlled to repeat ON-OFF operation in a pulsed (intermittent) manner at a predetermined timing based on the control signal. The electric blower 28 is controlled so as to be repeatedly operated and stopped according to the operation of the relay. As a result, pressurized air is supplied to the sealed space 24 in a pulsed manner,
The powder adhering to the inner wall surface of the inner tube 22 is effectively separated and floated. The operation switch of the electric blower 28 is preferably configured so that it can be manually operated.
【００２０】次に、前記粉体供給装置２に適用された、
本発明に従って改良された多孔性内管を備えた粉体搬送
用シュート装置の他の施例について説明する。なお図１
及び図２と共通する部分は同一番号を付し、特に必要の
ない限り同一部分の説明は省略する。図３及び図４を参
照して、粉体搬送用シュート装置４０は、粉体の搬送通
路である内管２２と、内管２２の外周との間に実質上密
封空間２４が形成されるよう配設された外管４２と、密
封空間２４に圧力空気を供給する圧力空気供給手段４３
とを備えている。圧力空気供給手段４３は、空気圧発生
手段であるコンプレッサ４４と、コンプレッサ４４と密
封空間２４とを連通する空気流路手段４５と、空気流路
手段４５を開閉する開閉弁４６と、開閉弁４６を開閉作
動させる図示しない開閉弁制御手段とを備えている。空
気流路手段４３は、コンプレッサ４４に連通された一本
の主流路４８と、主流路４８から分岐した６本の分岐流
路５０とを含んでいる。開閉弁４６は分岐流路５０の各
々に設けられている。Next, applied to the powder supply device 2,
Another embodiment of a powder conveying chute device having a porous inner tube improved according to the present invention will be described. Figure 1
2 are denoted by the same reference numerals, and the description of the same portions will be omitted unless particularly necessary. Referring to FIGS. 3 and 4, the powder conveying chute device 40 has a substantially sealed space 24 formed between the inner tube 22 which is a powder conveying passage and the outer periphery of the inner tube 22. Outer pipe 42 arranged and pressure air supply means 43 for supplying pressure air to the sealed space 24.
It has and. The compressed air supply means 43 includes a compressor 44 which is an air pressure generating means, an air flow passage means 45 which connects the compressor 44 and the sealed space 24, an open / close valve 46 which opens and closes the air flow passage means 45, and an open / close valve 46. An on-off valve control means (not shown) for opening and closing is provided. The air passage means 43 includes one main passage 48 communicated with the compressor 44 and six branch passages 50 branched from the main passage 48. The on-off valve 46 is provided in each of the branch channels 50.
【００２１】主流路４８にはエアタンク５２が設けられ
ている。エアタンク５２内には、コンプレッサ４４によ
って発生させられた圧縮空気が所定圧で貯蔵されてい
る。各開閉弁４６は共通部品から構成されており、この
実施例では電磁開閉弁、更に具体的には２ポート電磁弁
から構成されている。この開閉弁は、もちろん電磁開閉
弁に限られず、他の開閉弁、例えば、一方が大気に開放
される３ポート電磁弁あるいは周知のダイヤフラム弁に
より構成してもよい。各分岐流路５０の下流端は、それ
ぞれ外管４２の円周部に軸方向に間隔を置いて配設され
た６個の空気入口５４を介して密封空間２４内に開口し
ている。各空気入口５４は共通部品から構成されてお
り、それぞれ対応する分岐流路５０の下流端部が連結さ
れる管状のジョイント部から構成されている。各電磁開
閉弁４６を開閉作動させる前記開閉弁制御手段は、前記
制御手段の制御部に備えられ、各電磁開閉弁４６に制御
信号が出力されるよう構成されている。An air tank 52 is provided in the main channel 48. Compressed air generated by the compressor 44 is stored in the air tank 52 at a predetermined pressure. Each on-off valve 46 is composed of a common component, and in this embodiment is an electromagnetic on-off valve, more specifically a two-port electromagnetic valve. This on-off valve is, of course, not limited to the electromagnetic on-off valve, and may be configured by another on-off valve, for example, a 3-port electromagnetic valve, one of which is open to the atmosphere, or a known diaphragm valve. The downstream end of each branch channel 50 opens into the sealed space 24 via six air inlets 54 that are axially spaced from each other in the circumferential portion of the outer tube 42. Each of the air inlets 54 is composed of a common component, and each of the air inlets 54 is composed of a tubular joint portion to which the downstream ends of the corresponding branch flow passages 50 are connected. The on-off valve control means for opening and closing each electromagnetic on-off valve 46 is provided in the control section of the control means, and a control signal is output to each electromagnetic on-off valve 46.
【００２２】例えば、計量ホッパ８内の粉体が排出し終
わり、開閉ダンパが閉じた後、前記開閉弁制御手段から
各電磁開閉弁４６に制御信号が出力されると各電磁開閉
弁４６は同時に開く。これによりコンプレッサ４４から
の圧力空気は、エアタンク５２から、主流路４８、各分
岐路５０を通り、更に外管４２の各空気入口５４を介し
て密封空間２４内に衝撃的に供給される。各空気入口５
４は外管４２の円周部に軸方向に間隔を置いて配設され
ているので、圧力空気による衝撃波は、各空気入口５４
から内管２２の外周面の対応する部分に衝突する。密封
空間２４に供給された圧力空気は、内管２２の微細な孔
を通過して、内管２２の内壁面から粉体の搬送路である
内管２２の内側に向かって均一に流出させられる（図４
の矢印参照）。その結果、内管２２の内壁面に付着した
粉体は、内管２２の内面から流出する空気により強制的
に剥離・浮遊させられて粉体収容容器１４に向かって自
然落下させられる。各電磁開閉弁４６が継続して開いて
いる間は、圧力空気は継続して密封空間２４内に供給さ
れる。一方、前記開閉ダンパが開いて、粉体が内管２２
内を通過している時に、各電磁開閉弁４６が作動させら
れた場合には、内管２２内を通過中の粉体の前記内壁面
への付着は、流出している空気により確実に防止され
る。その結果、粉体収容容器１４には所定量の粉体が正
確に供給される。また前記したように騒音の発生もない
ので、作業環境は従来に較べて著しく改善される。For example, when the control signal is output from the on-off valve control means to each electromagnetic on-off valve 46 after the powder in the weighing hopper 8 is completely discharged and the on-off damper is closed, each electromagnetic on-off valve 46 is simultaneously opened. open. As a result, the compressed air from the compressor 44 is supplied from the air tank 52 through the main passage 48, the respective branch passages 50, and the respective air inlets 54 of the outer pipe 42 into the sealed space 24 in a shocking manner. Each air inlet 5
4 are arranged at intervals in the circumferential direction of the outer pipe 42 in the axial direction, so that the shock wave due to the pressure air is not affected by each air inlet 54.
Collides with the corresponding portion of the outer peripheral surface of the inner pipe 22. The pressurized air supplied to the sealed space 24 passes through the minute holes of the inner tube 22, and is uniformly discharged from the inner wall surface of the inner tube 22 toward the inner side of the inner tube 22 which is a powder transfer path. (Fig. 4
See the arrow). As a result, the powder adhered to the inner wall surface of the inner tube 22 is forcibly separated and floated by the air flowing out from the inner surface of the inner tube 22, and is naturally dropped toward the powder container 14. The pressurized air is continuously supplied into the sealed space 24 while each electromagnetic opening / closing valve 46 is continuously opened. On the other hand, the opening / closing damper is opened and the powder is transferred to the inner pipe 22.
When each electromagnetic on-off valve 46 is operated while passing through the inside, adhesion of powder passing through the inside of the inner tube 22 to the inner wall surface is reliably prevented by the air flowing out. To be done. As a result, a predetermined amount of powder is accurately supplied to the powder container 14. Further, since no noise is generated as described above, the working environment is remarkably improved as compared with the conventional one.
【００２３】この構成によれば、各電磁開閉弁４６が開
いた直後の圧力空気の衝撃的な供給及びその後の継続的
供給によって、内管２２の内壁面に付着した粉体の剥離
・浮遊が一層効果的に行なわれる。開閉弁制御手段を適
宜構成することにより、各電磁開閉弁４６の開弁作動形
態を自由に設定することができる。例えば、各電磁開閉
弁４６を、シュート装置４０の上流側から下流側に向か
って順に１個ずつ開く、あるいは各電磁開閉弁４６のう
ち上流側の３個を同時に開き、次いで下流側の残りを同
時に開く、等の制御は自由である。各電磁開閉弁４６が
開いている時間は、前記制御手段のタイマにより制御さ
れ、タイマからの信号により開閉弁制御手段から各電磁
開閉弁４６への制御信号の出力が停止される。その結
果、各電磁開閉弁４６は閉じられ、各分岐流路５０は閉
じられる。According to this structure, the powder adhered to the inner wall surface of the inner pipe 22 can be separated and suspended by the shocking supply of the compressed air immediately after the opening and closing of each electromagnetic on-off valve 46 and the continuous supply thereafter. More effectively done. By appropriately configuring the opening / closing valve control means, it is possible to freely set the valve opening operation mode of each electromagnetic opening / closing valve 46. For example, each electromagnetic on-off valve 46 is opened one by one from the upstream side to the downstream side of the chute device 40 one by one, or three of the electromagnetic on-off valves 46 on the upstream side are simultaneously opened, and then the rest on the downstream side. Control such as opening at the same time is free. The time when each electromagnetic on-off valve 46 is open is controlled by the timer of the control means, and the output of the control signal from the on-off valve control means to each electromagnetic on-off valve 46 is stopped by the signal from the timer. As a result, each electromagnetic opening / closing valve 46 is closed and each branch flow path 50 is closed.
【００２４】開閉弁制御手段の別の構成は、コンプレッ
サ４４からの圧力空気が各電磁開閉弁４６を介して密封
空間２４にパルス的に供給されるよう各電磁開閉弁４６
を制御するパルス制御手段（図示せず）を含んでいる。
パルス制御手段による制御信号が各電磁開閉弁４６に出
力されると、各電磁開閉弁４６は、同時に、その制御信
号に基づいた所定のタイミングでパルス的に開閉作動を
繰り返し行なうよう制御される。その結果、密封空間２
４には圧力空気がパルス的に供給され、内管の内壁面に
付着した粉体の剥離・浮遊は一層効果的に行なわれる。
パルス制御手段を適宜構成することにより、各電磁開閉
弁４６の作動形態は自由に設定することができる。例え
ば、各電磁開閉弁４６を、ダクト装置４０の上流側から
下流側に向かって順に１個ずつ所定のタイミングで開閉
作動させ、このサイクルを繰り返す、あるいは各電磁開
閉弁４６のうち上流側の３個を同時に所定のタイミング
で開閉作動させ、次いで下流側の残りを同時に所定のタ
イミングで開閉作動させ、このサイクルを繰り返す、等
の制御は自由である。Another structure of the on-off valve control means is that each of the electromagnetic on-off valves 46 is controlled so that the compressed air from the compressor 44 is supplied to the sealed space 24 in a pulsed manner via each of the electromagnetic on-off valves 46.
Pulse control means (not shown) for controlling the.
When a control signal from the pulse control means is output to each electromagnetic on-off valve 46, each electromagnetic on-off valve 46 is simultaneously controlled to repeat the opening and closing operation in a pulsed manner at a predetermined timing based on the control signal. As a result, the sealed space 2
Pressure air is supplied to 4 in a pulsed manner, so that the powder adhering to the inner wall surface of the inner tube can be more effectively separated and floated.
By appropriately configuring the pulse control means, the operating mode of each electromagnetic on-off valve 46 can be freely set. For example, each electromagnetic on-off valve 46 is opened and closed one by one at a predetermined timing from the upstream side to the downstream side of the duct device 40, and this cycle is repeated, or three of the electromagnetic on-off valves 46 on the upstream side. It is possible to freely control such that the individual pieces are simultaneously opened and closed at a predetermined timing, and the rest of the downstream side are simultaneously opened and closed at a predetermined timing, and this cycle is repeated.
【００２５】なお前記実施例においては、空気流路手段
４３は、コンプレッサ４４に連通された一本の主流路４
８と、主流路４８から分岐した６本の分岐流路５０とを
含み、開閉弁４６は分岐流路５０の各々に設けられてい
る。これに対し、空気流路手段４３を一本の主流路４８
により構成し、１個の開閉弁４６を主流路４８に設ける
構成としてもよい。シュート装置４０の長さが比較的短
い場合には成立する。また、一本の主流路４８に１個の
開閉弁４６を設け、開閉弁４６の下流側に複数本の分岐
流路を設け、外管４２に設けた同数の空気入口に連通す
る構成も成立する。In the above embodiment, the air flow passage means 43 has one main flow passage 4 communicated with the compressor 44.
8 and six branch flow paths 50 branched from the main flow path 48, and the opening / closing valve 46 is provided in each of the branch flow paths 50. On the other hand, the air flow path means 43 is connected to one main flow path 48.
Alternatively, one on-off valve 46 may be provided in the main flow path 48. This is true when the length of the chute device 40 is relatively short. Further, a configuration is also provided in which one opening / closing valve 46 is provided in one main passage 48, a plurality of branch passages are provided on the downstream side of the opening / closing valve 46, and the same number of air inlets provided in the outer pipe 42 are communicated. To do.
【００２６】以上本発明を、実施例に基づいて詳細に説
明したが、本発明は、上記実施例に限定されるものでは
なく、本発明の範囲内においてさまざまな変形あるいは
修正ができるものである。Although the present invention has been described in detail with reference to the embodiments, the present invention is not limited to the above embodiments, and various changes or modifications can be made within the scope of the present invention. .
【００２７】[0027]
【発明の効果】以上説明した本発明に従って構成された
多孔性内管を備えた粉体搬送用シュート装置によれば、
粉体の付着・堆積を確実に防止できる。その結果、この
シュート装置が粉体供給装置に適用された場合には、粉
体収容容器に所定量の粉体を正確に供給することが可能
となる。また激しい騒音源であるエアノッカを使用する
必要もないので、作業環境は従来に較べて著しく改善さ
れる。各構成に対応した効果は次の通りである。 （１）本発明の一形態である多孔性内管を備えた粉体搬
送用シュート装置は、粉体の搬送通路である内管と、内
管の外周との間に実質上密封空間が形成されるよう配設
された外管と、密封空間に圧力空気を供給する圧力空気
供給手段とを備えている。そして前記内管は多孔性材料
により構成されている。この構成により、内管の内壁面
に付着した粉体は、確実に剥離・浮遊させられ、また内
管内を通過中の粉体の付着も確実に防止される。その結
果、内管への粉体の付着・堆積は確実に防止される。そ
してこのシュート装置が粉体供給装置に適用された場合
には、粉体収容容器に所定量の粉体を正確に供給するこ
とが可能となる。また前記したように騒音の発生もない
ので、作業環境は従来に較べて著しく改善される。 （２）圧力空気供給手段が、空気圧発生手段と、空気圧
発生手段と密封空間とを連通する空気流路手段とを備
え、圧力空気発生手段が送風機により構成された場合に
は、圧力空気を、スムーズかつ迅速にしかも一定の圧力
で所定の時間継続的に密封空間内に供給することができ
る。この構成は、内管の直径が比較的大きく多量の圧力
空気を必要とする場合に有効である。 （３）圧力空気供給手段が、空気圧発生手段と、空気圧
発生手段と密封空間とを連通する空気流路手段と、空気
圧発生手段の作動を制御する作動制御手段とを備え、作
動制御手段が、空気圧発生手段からの圧力空気が密封空
間にパルス的に供給されるよう空気圧発生手段の作動を
制御するパルス制御手段を含むよう構成された場合に
は、密封空間には圧力空気がパルス的に供給され、内管
の内壁面に付着した粉体の剥離・浮遊が効果的に行なわ
れる。 （４）本発明の他の形態である多孔性内管を備えた粉体
搬送用シュート装置は、粉体の搬送通路である内管と、
内管の外周との間に実質上密封空間が形成されるよう配
設された外管と、密封空間に圧力空気を供給する圧力空
気供給手段とを備えている。そして圧力空気供給手段
が、空気圧発生手段と、空気圧発生手段と密封空間とを
連通する空気流路手段と、空気流路手段を開閉する開閉
弁と、開閉弁を開閉作動させる開閉弁制御手段とを備
え、内管は多孔性材料により構成されている。この構成
によれば、開閉弁が開いた直後の圧力空気の衝撃的な供
給及びその後の継続的供給によって、内管の内壁面に付
着した粉体の剥離・浮遊が効果的に行なわれる。その結
果、内管への粉体の付着・堆積は確実に防止される。そ
してこのシュート装置が粉体供給装置に適用された場合
には、粉体収容容器に所定量の粉体を正確に供給するこ
とが可能となる。また前記したように騒音の発生もない
ので、作業環境は従来に較べて著しく改善される。 （５）前記した本発明の他の形態における構成におい
て、開閉弁制御手段が、空気圧発生手段からの圧力空気
が開閉弁を介して密封空間にパルス的に供給されるよう
開閉弁を制御するパルス制御手段を含むよう構成された
場合には、圧力空気の衝撃的な供給が繰り返し行なわ
れ、内管の内壁面に付着した粉体の剥離・浮遊が効果的
に行なわれる。 （６）前記した本発明の他の形態における構成におい
て、空気流路手段が、空気圧発生手段に連通された一本
の主流路と、主流路から分岐してそれぞれ外管の円周部
に軸方向に間隔を置いて配設された複数の空気入口を介
して密封空間内に開口する分岐流路とを含み、開閉弁が
分岐流路の各々に設けられた場合には、各開閉弁が開い
た直後の圧力空気の衝撃的な供給を受ける箇所及びその
後の継続的供給を受ける箇所がそれぞれ多くなるので、
内管の内壁面に付着した粉体の剥離・浮遊が一層効果的
に行なわれる。 （７）前記した本発明の他の形態における構成におい
て、空気流路手段が、空気圧発生手段に連通された一本
の主流路と、主流路から分岐してそれぞれ外管の円周部
に軸方向に間隔を置いて配設された複数の空気入口を介
して密封空間内に開口する分岐流路とを含み、開閉弁が
分岐流路の各々に設けられ、更に、開閉弁制御手段が、
空気圧発生手段からの圧力空気が開閉弁を介して密封空
間にパルス的に供給されるよう開閉弁を制御するパルス
制御手段を含むよう構成された場合には、内管の内壁面
に付着した粉体の剥離・浮遊は更に一層効果的に行なわ
れる。According to the powder conveying chute device having the porous inner tube constructed according to the present invention described above,
It is possible to reliably prevent adhesion and accumulation of powder. As a result, when this chute device is applied to a powder supply device, it becomes possible to accurately supply a predetermined amount of powder to the powder container. Moreover, since it is not necessary to use an air knocker which is a source of intense noise, the working environment is significantly improved compared to the conventional environment. The effects corresponding to each configuration are as follows. (1) In a powder conveying chute device having a porous inner tube, which is an aspect of the present invention, a substantially sealed space is formed between an inner tube which is a powder passage and an outer circumference of the inner tube. The outer tube arranged as described above and the pressurized air supply means for supplying pressurized air to the sealed space are provided. The inner tube is made of a porous material. With this configuration, the powder adhered to the inner wall surface of the inner pipe is reliably separated and floated, and the adhesion of the powder passing through the inner pipe is surely prevented. As a result, the adhesion and accumulation of powder on the inner tube is reliably prevented. When this chute device is applied to a powder supply device, it becomes possible to accurately supply a predetermined amount of powder to the powder container. Further, since no noise is generated as described above, the working environment is remarkably improved as compared with the conventional one. (2) The pressure air supply means includes the air pressure generation means and the air flow path means that communicates the air pressure generation means with the sealed space, and when the pressure air generation means is constituted by a blower, the pressure air is It is possible to supply smoothly and quickly into the sealed space at a constant pressure and continuously for a predetermined time. This configuration is effective when the inner tube has a relatively large diameter and a large amount of compressed air is required. (3) The pressurized air supply means includes an air pressure generation means, an air flow path means for communicating the air pressure generation means with the sealed space, and an operation control means for controlling the operation of the air pressure generation means. When the pressure control device controls the operation of the air pressure generating means so that the pressure air from the air pressure generating means is supplied to the sealed space in a pulsed manner, the sealed space is supplied with the pressure air in a pulsed manner. As a result, the powder adhering to the inner wall surface of the inner pipe is effectively separated and suspended. (4) A powder-conveying chute device having a porous inner tube, which is another embodiment of the present invention, includes an inner tube that is a powder-conveying passage,
An outer pipe arranged so as to form a substantially sealed space between the inner pipe and the outer periphery of the inner pipe, and a pressurized air supply unit for supplying pressurized air to the sealed space. The compressed air supply means includes an air pressure generation means, an air flow path means for communicating the air pressure generation means with the sealed space, an opening / closing valve for opening / closing the air flow path means, and an opening / closing valve control means for opening / closing the opening / closing valve. And the inner tube is made of a porous material. According to this configuration, the powder adhered to the inner wall surface of the inner pipe is effectively separated and suspended by the shocking supply of the compressed air immediately after the opening and closing valve is opened and the continuous supply thereafter. As a result, the adhesion and accumulation of powder on the inner tube is reliably prevented. When this chute device is applied to a powder supply device, it becomes possible to accurately supply a predetermined amount of powder to the powder container. Further, since no noise is generated as described above, the working environment is remarkably improved as compared with the conventional one. (5) In the above-described configuration of another embodiment of the present invention, the on-off valve control means controls the on-off valve so that the pressure air from the air pressure generating means is supplied to the sealed space in a pulsed manner via the on-off valve. When configured to include the control means, the shocking supply of the compressed air is repeatedly performed, and the powder adhering to the inner wall surface of the inner tube is effectively separated and suspended. (6) In the above-described configuration according to another aspect of the present invention, the air flow passage means has one main flow passage communicated with the air pressure generating means and a branch from the main flow passage, and each of the main flow passages has a shaft on a circumferential portion of the outer pipe. A branch flow path that opens into the sealed space through a plurality of air inlets arranged at intervals in the direction, and when the open / close valve is provided in each branch flow path, each open / close valve is Since there are many places where shocked supply of pressurized air immediately after opening and where continuous supply is received after that,
The powder adhering to the inner wall surface of the inner pipe is more effectively separated and floated. (7) In the above-described configuration according to another aspect of the present invention, the air flow passage means has one main flow passage communicated with the air pressure generating means and a branch from the main flow passage, and each of the main flow passages has a shaft in the circumferential portion of the outer pipe. A branch flow passage opening into the sealed space through a plurality of air inlets arranged at intervals in the direction, an opening / closing valve is provided in each of the branch flow passages, and the opening / closing valve control means further comprises:
When the pressure air from the air pressure generating means is configured to include pulse control means for controlling the on-off valve so that the air is supplied to the sealed space in a pulsed manner through the on-off valve, the powder adhered to the inner wall surface of the inner pipe The detachment / floating of the body is performed even more effectively.
【図１】本発明に従って改良された多孔性内管を備えた
粉体搬送用シュート装置の一実施例を備えた粉体供給装
置の要部を示す側面概略図。FIG. 1 is a schematic side view showing a main part of a powder supply device provided with an embodiment of a powder conveying chute device having a porous inner tube improved according to the present invention.
【図２】図１に含まれる多孔性内管を備えた粉体搬送用
シュート装置の一部を拡大して示す断面図。FIG. 2 is an enlarged cross-sectional view showing a part of the powder conveying chute device including the porous inner tube included in FIG.
【図３】本発明に従って改良された多孔性内管を備えた
粉体搬送用シュート装置の他の実施例を備えた粉体供給
装置の要部を示す側面概略図。FIG. 3 is a schematic side view showing a main part of a powder supply device having another embodiment of a powder conveying chute device having a porous inner tube improved according to the present invention.
【図４】図３に含まれる多孔性内管を備えた粉体搬送用
シュート装置の一部を拡大して示す断面図。FIG. 4 is an enlarged cross-sectional view showing a part of a powder conveying chute device including the porous inner tube included in FIG.
２ 粉体供給装置 １２及び４０ シュート装置 １４ 粉体収容容器 ２２ 内管 ２４ 密封空間 ２６及び４２ 外管 ２７及び４３ 圧力空気供給手段 ２８ 送風機 ３０及び４５ 空気流路手段 ４６ 開閉弁 ４８ 主流路 ５０ 分岐流路 2 powder supply device 12 and 40 chute device 14 powder container 22 inner pipe 24 sealed space 26 and 42 outer pipe 27 and 43 pressure air supply means 28 blowers 30 and 45 air flow passage means 46 open / close valve 48 main flow passage 50 branch Channel
───────────────────────────────────────────────────── フロントページの続き (72)発明者 和田 郁夫 静岡県沼津市西椎路14番地 赤武エンジニ アリング株式会社内 (72)発明者 山田 道広 静岡県沼津市西椎路14番地 赤武エンジニ アリング株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Ikuo Wada, 14 Nishishiji, Numazu City, Shizuoka Prefecture, Akamu Engineering Co., Ltd. (72) Inventor, Michihiro Yamada, 14 Shiishiji, Numazu City, Shizuoka Prefecture, Akatake Engineering Co., Ltd.
Claims (6)
外周との間に実質上密封空間が形成されるよう配設され
た外管と、該密封空間に圧力空気を供給する圧力空気供
給手段とを備え、該内管は多孔性材料により構成された
ことを特徴とする多孔性内管を備えた粉体搬送用シュー
ト装置。1. An inner tube serving as a powder transfer passage, an outer tube disposed so as to substantially form a sealed space between the outer circumference of the inner tube, and pressurized air supplied to the sealed space. A chute device for powder conveyance having a porous inner tube, characterized in that the inner tube is made of a porous material.
と、該空気圧発生手段と該密封空間とを連通する空気流
路手段とを備え、該圧力空気発生手段は送風機により構
成されたことを特徴とする請求項１記載の多孔性内管を
備えた粉体搬送用シュート装置。2. The pressure air supply means comprises air pressure generation means and air flow path means for communicating the air pressure generation means with the sealed space, and the pressure air generation means is constituted by a blower. A chute device for powder conveyance, comprising the porous inner tube according to claim 1.
と、該空気圧発生手段と該密封空間とを連通する空気流
路手段と、該空気圧発生手段の作動を制御する作動制御
手段とを備え、該作動制御手段は、該空気圧発生手段か
らの圧力空気が該密封空間にパルス的に供給されるよう
該空気圧発生手段の作動を制御するパルス制御手段を含
むことを特徴とする請求項１記載の多孔性内管を備えた
粉体搬送用シュート装置。3. The pressurized air supply means comprises an air pressure generation means, an air flow path means for communicating the air pressure generation means with the sealed space, and an operation control means for controlling the operation of the air pressure generation means. 2. The operation control means includes pulse control means for controlling the operation of the air pressure generating means so that the pressure air from the air pressure generating means is supplied to the sealed space in a pulsed manner. Chute device for powder conveyance, which has a porous inner tube.
外周との間に実質上密封空間が形成されるよう配設され
た外管と、該密封空間に圧力空気を供給する圧力空気供
給手段とを備え、該圧力空気供給手段は、空気圧発生手
段と、該空気圧発生手段と該密封空間とを連通する空気
流路手段と、該空気流路手段を開閉する開閉弁と、該開
閉弁を開閉作動させる開閉弁制御手段とを備え、該内管
は多孔性材料により構成されたことを特徴とする多孔性
内管を備えた粉体搬送用シュート装置。4. An inner tube serving as a powder transfer passage, an outer tube arranged to form a substantially sealed space between the outer circumference of the inner tube, and pressurized air supplied to the sealed space. Pressure air supply means, the pressure air supply means includes an air pressure generation means, an air flow path means for communicating the air pressure generation means with the sealed space, and an opening / closing valve for opening and closing the air flow path means. An open / close valve control means for opening / closing the open / close valve, wherein the inner tube is made of a porous material.
連通された一本の主流路と、該主流路から分岐してそれ
ぞれ該外管の円周部に軸方向に間隔を置いて配設された
複数の空気入口を介して該密封空間内に開口する分岐流
路とを含み、該開閉弁は該分岐流路の各々に設けられた
ことを特徴とする請求項４記載の多孔性内管を備えた粉
体搬送用シュート装置。5. The air flow passage means has one main flow passage communicating with the air pressure generating means, and the air flow passage means is branched from the main flow passage and is axially spaced from the circumference of the outer tube. A branch flow path opening into the hermetically sealed space through a plurality of air inlets provided, wherein the on-off valve is provided in each of the branch flow paths. Chute device for powder transfer equipped with a sex inner tube.
からの圧力空気が該開閉弁を介して該密封空間にパルス
的に供給されるよう該開閉弁を制御するパルス制御手段
を含むことを特徴とする請求項４又は請求項５記載の多
孔性内管を備えた粉体搬送用シュート装置。6. The on-off valve control means includes pulse control means for controlling the on-off valve so that the pressure air from the air pressure generating means is supplied to the sealed space in a pulsed manner via the on-off valve. A powder conveying chute device provided with the porous inner tube according to claim 4 or 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5278868A JP2843882B2 (en) | 1993-10-13 | 1993-10-13 | A chute device for conveying powder with a porous inner tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5278868A JP2843882B2 (en) | 1993-10-13 | 1993-10-13 | A chute device for conveying powder with a porous inner tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07109018A true JPH07109018A (en) | 1995-04-25 |
| JP2843882B2 JP2843882B2 (en) | 1999-01-06 |
Family
ID=17603245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5278868A Expired - Lifetime JP2843882B2 (en) | 1993-10-13 | 1993-10-13 | A chute device for conveying powder with a porous inner tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2843882B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07109013A (en) * | 1993-10-13 | 1995-04-25 | Printing Bureau Ministry Of Finance Japan | Powder carrying chute equipment having flexible inner tube |
| WO2012070453A1 (en) * | 2010-11-25 | 2012-05-31 | 三菱重工業株式会社 | Bin system and char collection device |
| JP2013147321A (en) * | 2012-01-19 | 2013-08-01 | Aishin Nano Technologies Co Ltd | Material pneumatic conveying system |
| CN107265136A (en) * | 2017-06-28 | 2017-10-20 | 中航锂电（江苏）有限公司 | A kind of lithium ion battery closes the slurry efficient blanking device of powder |
| CN109178976A (en) * | 2018-11-05 | 2019-01-11 | 青岛朗夫包装有限公司 | A kind of polyvinyl chloride conveying assembly container handling apparatus and logistics system |
| WO2023281927A1 (en) * | 2021-07-07 | 2023-01-12 | 株式会社村田製作所 | Component accommodation device |
| KR102659503B1 (en) * | 2023-12-19 | 2024-04-22 | 주식회사 태경엔텍 | Pneumatic conveyor operating system for preventing curing carryng materials |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4717929U (en) * | 1971-04-07 | 1972-10-30 | ||
| JPS5997910A (en) * | 1982-11-26 | 1984-06-06 | Kubota Ltd | Conveying device |
| JPS61203614U (en) * | 1985-06-11 | 1986-12-22 | ||
| JPH0178596U (en) * | 1987-11-16 | 1989-05-26 | ||
| JPH07109013A (en) * | 1993-10-13 | 1995-04-25 | Printing Bureau Ministry Of Finance Japan | Powder carrying chute equipment having flexible inner tube |
-
1993
- 1993-10-13 JP JP5278868A patent/JP2843882B2/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4717929U (en) * | 1971-04-07 | 1972-10-30 | ||
| JPS5997910A (en) * | 1982-11-26 | 1984-06-06 | Kubota Ltd | Conveying device |
| JPS61203614U (en) * | 1985-06-11 | 1986-12-22 | ||
| JPH0178596U (en) * | 1987-11-16 | 1989-05-26 | ||
| JPH07109013A (en) * | 1993-10-13 | 1995-04-25 | Printing Bureau Ministry Of Finance Japan | Powder carrying chute equipment having flexible inner tube |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07109013A (en) * | 1993-10-13 | 1995-04-25 | Printing Bureau Ministry Of Finance Japan | Powder carrying chute equipment having flexible inner tube |
| WO2012070453A1 (en) * | 2010-11-25 | 2012-05-31 | 三菱重工業株式会社 | Bin system and char collection device |
| CN103068703A (en) * | 2010-11-25 | 2013-04-24 | 三菱重工业株式会社 | Bin system and char collection device |
| US9199806B2 (en) | 2010-11-25 | 2015-12-01 | Mitsubishi Hitachi Power Systems, Ltd. | Bin system and char recovery unit |
| JP2013147321A (en) * | 2012-01-19 | 2013-08-01 | Aishin Nano Technologies Co Ltd | Material pneumatic conveying system |
| CN107265136A (en) * | 2017-06-28 | 2017-10-20 | 中航锂电（江苏）有限公司 | A kind of lithium ion battery closes the slurry efficient blanking device of powder |
| CN109178976A (en) * | 2018-11-05 | 2019-01-11 | 青岛朗夫包装有限公司 | A kind of polyvinyl chloride conveying assembly container handling apparatus and logistics system |
| WO2023281927A1 (en) * | 2021-07-07 | 2023-01-12 | 株式会社村田製作所 | Component accommodation device |
| KR102659503B1 (en) * | 2023-12-19 | 2024-04-22 | 주식회사 태경엔텍 | Pneumatic conveyor operating system for preventing curing carryng materials |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2843882B2 (en) | 1999-01-06 |
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