JPH07113680A - Powder material supply equipment - Google Patents
Powder material supply equipmentInfo
- Publication number
- JPH07113680A JPH07113680A JP27886593A JP27886593A JPH07113680A JP H07113680 A JPH07113680 A JP H07113680A JP 27886593 A JP27886593 A JP 27886593A JP 27886593 A JP27886593 A JP 27886593A JP H07113680 A JPH07113680 A JP H07113680A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- powder
- granular material
- set value
- weighing
- 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
- Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (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、粉粒体を目標重量に計
量して供給する粉体供給装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powder supply device for measuring and supplying powder particles to a target weight.
【０００２】[0002]
【従来の技術】従来、粉粒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粒体を排出する排出手段
と、該排出手段によって排出された粉粒体を収容する計
量ホッパと、該計量ホッパに供給された粉粒体の重量を
測定する重量測定手段と、該計量ホッパに供給された粉
粒体を排出する排出開口開閉手段とを備え、前記重量測
定手段からの測定値が設定値に達したとき前記排出手段
の作動を停止するともに、前記排出開口開閉手段を開作
動して、計量された計量ホッパ内の粉粒体を排出するよ
うにした粉体供給装置が実用化されている。しかるに、
前記重量測定手段からの測定値が設定値に達し前記排出
手段の作動を停止した時点で、排出手段と計量ホッパ間
には計量ホッパに達しない粉粒体が存在する所謂落差相
当分があり、従って、計量ホッパから実際に排出される
粉粒体の重量は設定値より大きな値となる。そこで、こ
の落差相当分を予測して計量設定値を設定することによ
り、計量精度を向上させた計量方法が提案され実用に供
されている。2. Description of the Related Art Conventionally, a storage hopper for storing powder particles,
Discharging means for discharging the granular material stored in the storage hopper, weighing hopper for storing the granular material discharged by the discharging means, and weight for measuring the weight of the granular material supplied to the measuring hopper Measuring means, and a discharge opening opening and closing means for discharging the powder or granular material supplied to the weighing hopper, together with stopping the operation of the discharging means when the measured value from the weight measuring means reaches a set value, A powder supply device has been put into practical use in which the discharge opening opening / closing means is opened to discharge the weighed powder particles in the weighing hopper. However,
At the time when the measured value from the weight measuring means reaches a set value and the operation of the discharging means is stopped, there is a so-called drop equivalent amount between the discharging means and the weighing hopper in which there is a granular material that does not reach the weighing hopper, Therefore, the weight of the granular material actually discharged from the weighing hopper becomes a value larger than the set value. Therefore, a weighing method with improved weighing accuracy is proposed and put to practical use by predicting this drop equivalent and setting the weighing set value.
【０００３】[0003]
【発明が解決しようとする課題】而して、実際に設置す
る設備においては、計量ホッパから容器へ排出される粉
粒体の発塵を防止するために、一般に容器を集塵機に接
続し、容器内の空気を吸引して集塵を行っている。この
集塵によって失われる粉粒体の量は、実測してみると前
記落差に相当する量よりもはるかに多い場合がある。従
って、実設備においては、前記落差相当分を補正しても
実際に容器に供給される粉粒体の量は設定値より少なく
なってしまう。Therefore, in an actually installed facility, in order to prevent dust particles from being discharged from the weighing hopper to the container, the container is generally connected to a dust collector, The air inside is sucked in to collect dust. The amount of powder or granular material lost due to this dust collection may be much larger than the amount corresponding to the above-mentioned head when actually measured. Therefore, in actual equipment, the amount of powder or granules actually supplied to the container becomes smaller than the set value even if the drop equivalent is corrected.
【０００４】本発明は、上記の点に鑑みてなされたもの
で、その主たる技術的課題は、前記落差相当分と集塵機
に吸引される粉粒体の損失量を予測して計量設定値を設
定することにより、実際に供給される粉粒体の量を定量
設定値に略一致させることができる粉体供給装置を提供
することにある。The present invention has been made in view of the above points, and its main technical problem is to predict the loss corresponding to the head and the loss amount of the particulate matter sucked into the dust collector to set the measurement set value. By doing so, it is an object of the present invention to provide a powder supply device capable of making the amount of powder or granular material actually supplied substantially match the quantitative set value.
【０００５】[0005]
【課題を解決するための手段】上記技術的課題を達成す
るために、本発明によれば、粉粒体を収容する収容ホッ
パと、該収容ホッパ内に収容された粉粒体を排出する排
出手段と、該排出手段によって排出された粉粒体を収容
する計量ホッパと、該計量ホッパに供給された粉粒体の
重量を測定する重量測定手段と、前記計量ホッパに供給
された粉粒体を排出する排出開口開閉手段と、前記計量
ホッパから排出された粉粒体を収容する容器と、該容器
に接続された集塵機と、目標重量である定量設定値と前
記排出手段から排出され前記計量ホッパ間（落差）に存
在する粉粒体に相当する予測重量値と前記集塵機に吸引
される粉粒体の予測損失量とに基づいて設定された計量
設定値と、前記重量測定手段からの測定値とを比較して
前記排出手段を制御し、かつ前記排出開閉手段を制御す
る制御手段と、からなることを特徴とする粉体供給装置
が提供される。In order to achieve the above technical object, according to the present invention, a storage hopper for storing powder and granular material and a discharge for discharging the powder and granular material stored in the storage hopper. Means, a weighing hopper for containing the powder or granular material discharged by the discharging means, a weight measuring means for measuring the weight of the powder or granular material supplied to the measuring hopper, and the powder or granular material supplied to the measuring hopper A discharge opening opening / closing means for discharging the powder, a container for containing the powder or granular material discharged from the weighing hopper, a dust collector connected to the container, a fixed set value which is a target weight, and the weighing discharged from the discharging means. A measurement set value set based on a predicted weight value corresponding to powder particles existing between hoppers (drops) and a predicted loss amount of powder particles sucked by the dust collector, and measurement from the weight measuring means The value is compared and the emission means is controlled. And, and the powder supplying device is provided, wherein the control means for controlling the discharge switching means, in that it consists of.
【０００６】[0006]
【作用】本発明による粉体供給装置においては、目標重
量である定量設定値と前記排出手段から排出され前記計
量ホッパ間（落差）に存在する粉粒体に相当する予測重
量値と前記集塵機に吸引される粉粒体の予測損失量とに
基づいて設定された計量設定値と、重量測定手段からの
測定値とを比較して、重量測定手段からの測定値が計量
設定値に達したとき前記排出手段の作動を停止し、その
後排出開口開閉手段を開作動する。In the powder feeder according to the present invention, the set value which is the target weight, the predicted weight value corresponding to the powder particles discharged from the discharging means and present between the weighing hoppers (drop) and the dust collector are set. When the measured set value set based on the predicted loss amount of the aspirated powder and the measured value from the weight measuring means is compared, and the measured value from the weight measuring means reaches the measured set value. The operation of the discharge means is stopped, and then the discharge opening opening / closing means is opened.
【０００７】[0007]
【実施例】以下、本発明に従って構成された粉体供給装
置の好適実施例を示している添付図面を参照して、さら
に詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in more detail with reference to the accompanying drawings, which show preferred embodiments of a powder feeding apparatus constructed according to the present invention.
【０００８】図１は本発明による粉体供給装置の一実施
例を示す概略構成ブロック図、図２は図１の粉体供給装
置を構成する収容ホッパおよび排出手段の断面図、図３
は図２に示す排出手段を構成するスクレーパ式フィーダ
の斜視図である。図示の粉体供給装置は、粉粒体を収容
する収容ホッパ２と、該収容ホッパ２内に収容された粉
粒体を排出する排出手段４を備えている。収容ホッパ２
は円筒状の周側壁２２と、該周側壁２２の下端を閉塞す
る底壁２４、およびその下端部に排出口２６を有し、そ
の内部に供給すべき粉粒体（例えば印刷インキ用の顔
料）が収容される。排出手段４は、前記収容ホッパ２の
底壁２４を貫通して配設された回転軸４１と、該回転軸
４１の上端部に取付けられ前記収容ホッパ２の底部に配
設されたスクレーパ式フィーダを構成する回転テーブル
４２を備えている。回転軸４１は、後述する減速機４３
のケース４３１に軸受４３２を介して回転自在に支持さ
れており、その下端には大径のスプロケット４３３が装
着されている。回転テーブル４２は、前記回転軸４１の
上端部に嵌合されキー結合等によって回転軸４１と一体
に回転するブッシュ４６２の外周面に溶接等の固着手段
によって固着されている。該回転テーブル４２は円板状
に形成されており、その外周部が下方に屈曲して形成さ
れ、前記収容ホッパ周側壁２２の内周面とによって搬送
溝４２２を構成している。該搬送溝４２２に関連して、
前記排出口２６部には前記搬送溝４２２を覆うスリ切り
カバー４８が収容ホッパ２に取付けられているととも
に、該スリ切りカバー４８の下側にスクレーパ４４が配
設されている。該スクレーパ４４は、基端が軸４４２に
よって旋回可能に軸支されており、その先端が図３にお
いて破線で示す前記回転テーブル４２の搬送溝４２２を
形成する円周壁４２４に接触する全開位置と、図３にお
いて２点鎖線で示す半開位置とに作動せしめられる。該
スクレーパ４４を作動せしめるアクチュエータは、本実
施例においては２段作動エアシリンダ４５が用いられて
おり、そのピストンロッドがリンク機構４６を介して前
記軸４４２に連結されている。なお、該アクチュエータ
は電動モータを用いてもよい。また、排出手段４は電動
モータ４７を備えており、該電動モータ４７の駆動軸４
７２には小径のスプロケット４３４が装着されている。
該スプロケット４３４と前記スプロケット４３３とにチ
エーン４３５が捲回され減速機構を構成している。前記
回転テーブル４２の上面には図２に示すように攪拌手段
５が配設されている。該攪拌手段５は、回転テーブル４
２の中央上面に下端が溶接等によって固着された支持筒
体５２と、該支持筒体５２の上端に溶接等によって固着
された円板状の載置板５３と、該載置板５３の上面に溶
接またはボルト、ナット等の固着手段によって取付けら
れた攪拌翼５４と、該攪拌翼５４の中央上面に溶接等に
よって固着された円錐状の整流カバー５５と、前記支持
筒体５２の周囲に放射状に配設され下端が前記回転テー
ブル４２に溶接等によって固着され上端が前記載置板５
３に溶接等によって固着された支持板５６（本実施例で
は４個）とからなっている。FIG. 1 is a schematic block diagram showing an embodiment of a powder supply apparatus according to the present invention, FIG. 2 is a sectional view of a storage hopper and a discharging means which constitute the powder supply apparatus of FIG. 1, and FIG.
FIG. 3 is a perspective view of a scraper type feeder which constitutes the discharging means shown in FIG. 2. The illustrated powder supply device includes a storage hopper 2 that stores powder and granules, and a discharge unit 4 that discharges the powder and granules stored in the storage hopper 2. Storage hopper 2
Has a cylindrical peripheral side wall 22, a bottom wall 24 that closes the lower end of the peripheral side wall 22, and a discharge port 26 at the lower end thereof, and a granular material (for example, a pigment for printing ink) to be supplied therein. ) Is accommodated. The discharging means 4 includes a rotating shaft 41 arranged to penetrate the bottom wall 24 of the accommodating hopper 2, and a scraper type feeder arranged at the upper end of the rotating shaft 41 and arranged at the bottom of the accommodating hopper 2. Is provided with a rotary table 42. The rotating shaft 41 is a speed reducer 43 described later.
The case 431 is rotatably supported via a bearing 432, and a large-diameter sprocket 433 is attached to the lower end of the case 431. The rotary table 42 is fixed to the outer peripheral surface of the bush 462 that is fitted to the upper end portion of the rotary shaft 41 and rotates integrally with the rotary shaft 41 by key connection or the like by a fixing means such as welding. The rotary table 42 is formed in a disc shape, and its outer peripheral portion is bent downward to form a conveying groove 422 with the inner peripheral surface of the storage hopper peripheral side wall 22. In relation to the transport groove 422,
A slot cover 48 that covers the transport groove 422 is attached to the storage hopper 2 at the discharge port 26, and a scraper 44 is disposed below the slot cover 48. The scraper 44 has a base end rotatably supported by a shaft 442, and a front end of the scraper 44 is in a fully opened position in which the scraper 44 comes into contact with a circumferential wall 424 forming a conveying groove 422 of the rotary table 42 shown by a broken line in FIG. It is operated in the half-open position shown by the chain double-dashed line in FIG. As the actuator for operating the scraper 44, a two-step operating air cylinder 45 is used in this embodiment, and its piston rod is connected to the shaft 442 via a link mechanism 46. The actuator may use an electric motor. Further, the discharging means 4 is provided with an electric motor 47, and the drive shaft 4 of the electric motor 47.
A small diameter sprocket 434 is mounted on 72.
A chain 435 is wound around the sprocket 434 and the sprocket 433 to form a speed reduction mechanism. As shown in FIG. 2, stirring means 5 is arranged on the upper surface of the rotary table 42. The stirring means 5 is a rotary table 4.
2, a support cylinder 52 having a lower end fixed to the upper center surface by welding or the like, a disk-shaped mounting plate 53 fixed to the upper end of the support cylinder 52 by welding or the like, and an upper surface of the mounting plate 53 Agitating blades 54 attached by welding or fixing means such as bolts and nuts, a conical straightening cover 55 fixed by welding or the like to the central upper surface of the agitating blades 54, and radially around the support cylinder body 52. And the lower end is fixed to the rotary table 42 by welding or the like and the upper end is the mounting plate 5.
3 and a supporting plate 56 (four in this embodiment) fixed by welding or the like.
【０００９】図示の粉体供給装置は、前記収容ホッパ２
下端部に設けられた排出口２６に上端が接続されたシュ
ート６および該シュート６の下端に接続された計量ホッ
パ７を備えている。該計量ホッパ７は、重量測定手段を
構成するロードセル７０を介して図示しない枠体に支持
されている。ロードセル７０は、計量ホッパ７に供給さ
れた粉粒体の重量を測定し、その測定信号を後述する制
御手段１００に送出する。計量ホッパ７の下端には排出
開口開閉手段を構成する開閉ダンパ８が配設されてい
る。該開閉ダンパ８は、一端が回動軸８０に取付けられ
ており、該回動軸８２にリンク機構８２を介してピスト
ンロッドが連結されたエアシリンダ８６によって開位置
と閉位置とに作動せしめられる。なお、図示の実施例に
おいては、該開閉ダンパ８を作動するアクチュエータと
してエアシリンダ８６を用いたが、電動モータを用いて
もよい。開閉ダンパ８の下側にはシュート９が配設さ
れ、該シュート９に容器１０が接続されている。該容器
１０は、ダクト１２を介して集塵機１４に接続されてい
る。なお、図１において１６は、容器１０に供給された
粉粒体の重量を測定するロードセルで、その測定信号を
後述する制御手段１００に送出する。The powder supplying apparatus shown in the drawing is the storage hopper 2 described above.
A chute 6 having an upper end connected to a discharge port 26 provided at a lower end and a weighing hopper 7 connected to a lower end of the chute 6 are provided. The weighing hopper 7 is supported by a frame body (not shown) via a load cell 70 which constitutes a weight measuring means. The load cell 70 measures the weight of the powder or granular material supplied to the weighing hopper 7, and sends the measurement signal to the control means 100 described later. At the lower end of the weighing hopper 7, an opening / closing damper 8 forming a discharge opening opening / closing means is arranged. One end of the opening / closing damper 8 is attached to the rotary shaft 80, and the open / close damper 8 is operated to an open position and a closed position by an air cylinder 86 to which a piston rod is connected to the rotary shaft 82 via a link mechanism 82. . In the illustrated embodiment, the air cylinder 86 is used as the actuator that operates the opening / closing damper 8, but an electric motor may be used. A chute 9 is arranged below the opening / closing damper 8 and a container 10 is connected to the chute 9. The container 10 is connected to a dust collector 14 via a duct 12. In FIG. 1, reference numeral 16 is a load cell for measuring the weight of the powder or granular material supplied to the container 10, and the measurement signal is sent to the control means 100 described later.
【００１０】制御手段１００は、制御部１１０と操作部
１２０を備えている。制御部１１０は、制御プログラム
に従って演算処理する中央処理手段１１２と、制御プロ
グラムを格納するＲＯＭ１１３および重量測定データや
計量設定値等をを格納する読み書き可能なＲＡＭ１１４
とを有する記憶手段１１５と、作動時間を計時する第１
のタイマ１１６、第２のタイマ１１７と、入出力インタ
ーフェース１１８を備えている。操作部１２０は、電源
スイッチ１２２、装置作動スイッチ１２４、粉体の種類
を入力する指定キー１２６、計量設定値等を直接入力す
るテンキー１２８等の各種入力キーが配設された操作盤
１２１からなっており、装置作動指令信号や計量設定値
信号等を前記制御部１１０に送出する。このように構成
された制御手段１００は、操作部１２０からの入力信号
や前記ロードセル７０からの重量測定信号等に基づき、
制御プログラムに従って所定の演算処理を実行し、前記
排出手段４の電動モータ４７および２段作動エアシリン
ダ４５や前記開閉ダンパ８を作動するエアシリンダ８６
に制御信号を出力する。なお、図１において２００は、
例えばＣＲＴからなる表示手段で、前記制御手段１００
の制御部１１０に接続されており、前記操作部１２０で
入力された計量設定値やロードセル１６によって測定さ
れた容器１０内の粉粒体重量値等を表示する。The control means 100 comprises a control section 110 and an operation section 120. The control unit 110 includes a central processing unit 112 that performs arithmetic processing according to a control program, a ROM 113 that stores the control program, and a readable / writable RAM 114 that stores weight measurement data, measurement set values, and the like.
A storage means 115 having a
The timer 116, the second timer 117, and the input / output interface 118 are provided. The operation section 120 includes an operation panel 121 provided with various input keys such as a power switch 122, an apparatus operation switch 124, a designation key 126 for inputting a powder type, and a numeric keypad 128 for directly inputting a measurement set value and the like. Therefore, the device operation command signal, the measurement set value signal, and the like are sent to the control unit 110. The control means 100 configured in this way is based on an input signal from the operation unit 120, a weight measurement signal from the load cell 70, and the like.
An air cylinder 86 that executes a predetermined calculation process in accordance with a control program and operates the electric motor 47 and the two-stage operating air cylinder 45 of the discharging means 4 and the opening / closing damper 8.
Control signal is output to. In FIG. 1, 200 is
The control means 100 is a display means such as a CRT.
It is connected to the control unit 110 and displays the weight setting value input by the operation unit 120, the weight value of the granular material in the container 10 measured by the load cell 16, and the like.
【００１１】本実施例による粉体供給装置は以上のよう
に構成されており、以下図４に示すフローチャートをも
参照してその作動を説明する。The powder feeder according to the present embodiment is constructed as described above, and its operation will be described below with reference to the flow chart shown in FIG.
【００１２】粉体供給装置の作動を開始するには、先ず
操作部１２０の電源スイッチ１２２をＯＮにする。電源
スイッチ１２２がＯＮすると、図４のフローチャートで
示すように制御部１１０は動作をスタートする。制御部
１１０が動作を開始したら、計量ホッパ７で計測する粉
粒体の計量設定値（Ｗ１）を設定する（ステップＳ
１）。この計量設定値（Ｗ１）は、次のようにして求め
る。 計量設定値（Ｗ１）＝定量設定値−落差相当＋損失予測
係数×定量設定値 但し、定量設定値は、容器１０に供給する目標重量値。
落差相当は、排出手段４によって排出され計量ホッパ７
間に存在する粉粒体に相当する予測重量値で、シュート
６の長さや粉粒体の種類によって異なり、実験的に求め
る。損失予測係数は、集塵機１４によって吸引される粉
粒体の損失係数で、粉粒体の種類によって異なり、実験
的に求める。このようにして求められた計量設定値（Ｗ
１）は、操作部１２０のテンキー１２８から直接入力設
定してもよいが、上記計算式を予め制御プログラムに組
み込んでおき、定量設定値をテンキー１２８から入力
し、粉粒体の種類を指定キー１２６から入力することに
より、制御部１１０が計量設定値（Ｗ１）を演算するよ
うにしてもよい。このようにして設定された計量設定値
（Ｗ１）は、制御部１１０のＲＡＭ１１４に格納される
（ステップＳ２）。計量設定値（Ｗ１）が設定され作動
準備が完了すると、制御部１１０は装置作動スイッチ１
２４がＯＮされているか否かをチェックする（ステップ
Ｓ３）。装置作動スイッチ１２４がＯＮされていなけれ
ば、ＯＮされるのを待ち、ＯＮされていればステップＳ
４以降に進む。ステップＳ４では排出手段４の電動モー
タ４７をＯＮして作動し、ステップＳ５でスクレーパ４
４を作動せしめる２段作動エアシリンダ４５に制御信号
を送出してスクレーパ４４を全開位置に作動せしめる。
電動モータ４７の作動により、その駆動力は駆動軸４７
２からスプロケット４３４、チエーン４３５およびスプ
ロケット４３３からなる減速機４３を介して回転軸４１
に伝達され、該回転軸４１に連結された回転テーブル４
２を図３において矢印Ａで示す方向に回動せしめる。回
転テーブル４２が矢印Ａ方向に回動すると、搬送溝４２
２内の粉粒体も回転テーブル４２とともに回動し、排出
口２６部においてスリ切りカバー４８によって搬送溝４
２２より上側の粉粒体がスリ切られるとともに、スクレ
ーパ４４によって掻き取られ整流されて排出口２６から
排出される。このようにして排出された粉粒体は、シュ
ート６を通って計量ホッパ７に供給される。電動モータ
４７およびスクレーパ４４の全開作動と同時に第１のタ
イマ１１６がスタートされ（ステップＳ６）、排出手段
４の作動時間が計時されている。これは排出手段４の作
動開始から所定時間（Ｔ１）までは電動モータ４７を比
較的高速で駆動するとともに、スクレーパ４４を全開位
置に位置付けて粉粒体を高速投入し、所定時間（Ｔ１）
経過後は電動モータ４７の回転速度を減速するととも
に、スクレーパ４４を半開位置に位置付けて粉粒体を低
速投入させることにより、計量ホッパ７への粉粒体の投
入効率を向上させるとともに、計量ホッパ７に投入され
た粉粒体の計量精度を向上させるためである。なお、こ
の粉粒体投入速度の制御については、上記タイマ制御に
変えて計量ホッパ７に供給された粉粒体の重量値に基づ
いて制御してもよい。即ち、計量設定値（Ｗ１）より所
定量低い前段設定値を定めておき、ロードセル７０から
の測定値（Ｗ）が該前段設定値に達するまでは電動モー
タ４７を比較的高速で駆動するとともに、スクレーパ４
４を全開位置に位置付けて粉粒体を高速投入し、ロード
セル７０からの測定値（Ｗ）が前段設定値に達したなら
ば電動モータ４７の回転速度を減速するとともに、スク
レーパ４４を半開位置に位置付けて粉粒体を低速投入さ
せるように制御することもできる。第１のタイマ１１６
がスタートするとステップＳ７に進み、所定時間（Ｔ
１）に達したか否かをチェックする。所定時間（Ｔ１）
に達していなければ待ち、所定時間（Ｔ１）に達したな
らばステップＳ８以降に進む。ステップＳ８では排出手
段４の電動モータ４７を減速制御し、ステップＳ９でス
クレーパ４４を半開位置に作動すべく２段作動エアシリ
ンダ４５を制御する。次に、制御部１１０はロードセル
７０からの測定値（Ｗ）を読込み（ステップＳ１０）、
読込まれた測定値（Ｗ）が計量設定値（Ｗ１）に達した
か否かをチェックする（ステップＳ１１）。測定値
（Ｗ）が計量設定値（Ｗ１）に達していない場合は排出
手段４の作動を継続し、測定値（Ｗ）が計量設定値（Ｗ
１）に達したら電動モータ４７をＯＦＦして排出手段４
の作動を停止し（ステップＳ１２）、第１のタイマ１１
６をクリアする（ステップＳ１３）。次に、制御部１１
０はエアシリンダ８６に制御信号を出力して開閉ダンパ
８を開く（ステップＳ１４）。これにより、計量された
粉粒体は計量ホッパ７から排出され、シュート９を通っ
て容器１０に供給される。ステップＳ１４における開閉
ダンパ８の開作動と同時に第２のタイマ１１７がスター
トする（ステップＳ１４）。第２のタイマ１１７によっ
て開閉ダンパ８が開作動されてからの時間（Ｔ）が計時
され、所定時間（Ｔ２）を経過したか否かをチェックす
る（ステップＳ１６）。開閉ダンパ８が開作動されてか
らの時間（Ｔ）が所定時間（Ｔ２）に達していない場合
は待ち、所定時間（Ｔ２）を経過したならば、ステップ
Ｓ１７に進んで開閉ダンパ８を閉じ、ステップＳ１８に
おいて第２のタイマ１１７をクリアして計量サイクルは
終了する。なお、容器１０に供給された粉粒体の重量
は、ロードセル１６によって計測され、この計測信号が
制御部１１０に送られる。制御部１１０は計測信号に基
づいて計測値を表示手段２００に表示させるので、作業
者は直ちに容器１０に供給された粉粒体の重量を確認す
ることができる。To start the operation of the powder supply device, first, the power switch 122 of the operation section 120 is turned on. When the power switch 122 is turned on, the control unit 110 starts its operation as shown in the flowchart of FIG. When the control unit 110 starts the operation, the weighing set value (W1) of the granular material measured by the weighing hopper 7 is set (step S).
1). The measured set value (W1) is obtained as follows. Measurement setting value (W1) = quantity setting value−fall equivalent + loss prediction coefficient × quantity setting value However, the quantitative setting value is a target weight value to be supplied to the container 10.
The drop equivalent is discharged by the discharging means 4 and the weighing hopper 7
It is a predicted weight value corresponding to powder particles existing between them, and varies depending on the length of the chute 6 and the type of powder particles, and is experimentally obtained. The loss prediction coefficient is a loss coefficient of the powder or granular material sucked by the dust collector 14, varies depending on the type of the powder or granular material, and is experimentally obtained. The measurement set value (W
In 1), the numeric keypad 128 of the operation unit 120 may be directly input and set, but the above calculation formula is incorporated in the control program in advance, the quantitative set value is input from the numeric keypad 128, and the type of powder or granular material is designated. The control unit 110 may calculate the measurement set value (W1) by inputting from 126. The metric setting value (W1) set in this way is stored in the RAM 114 of the control unit 110 (step S2). When the measurement set value (W1) is set and the preparation for operation is completed, the control unit 110 causes the device operation switch 1
It is checked whether 24 is turned on (step S3). If the device operation switch 124 is not turned on, wait until it is turned on, and if it is turned on, step S
Go to 4 or later. In step S4, the electric motor 47 of the discharging means 4 is turned on to operate, and in step S5, the scraper 4
A control signal is sent to the two-stage operating air cylinder 45 that operates the No. 4 to operate the scraper 44 to the fully open position.
Due to the operation of the electric motor 47, its driving force is
2 through a sprocket 434, a chain 435 and a sprocket 433 through a speed reducer 43.
Table 4 transmitted to the rotary shaft 4 and connected to the rotary shaft 41.
2 is rotated in the direction indicated by arrow A in FIG. When the rotary table 42 rotates in the direction of arrow A, the transport groove 42
The powder and granules in 2 also rotate together with the rotary table 42, and at the discharge port 26, the slitting cover 48 causes the conveying groove 4
The powder particles above 22 are scraped off, scraped off by the scraper 44, rectified, and discharged from the discharge port 26. The powder particles discharged in this way are supplied to the weighing hopper 7 through the chute 6. At the same time when the electric motor 47 and the scraper 44 are fully opened, the first timer 116 is started (step S6), and the operating time of the discharging means 4 is measured. This is because the electric motor 47 is driven at a relatively high speed from the start of the operation of the discharging means 4 to the predetermined time (T1), the scraper 44 is positioned at the fully open position, and the granular material is charged at a high speed, and the predetermined time (T1).
After the lapse of time, the rotation speed of the electric motor 47 is decelerated, and the scraper 44 is positioned at the half-opened position to throw in the granular material at a low speed, thereby improving the efficiency of feeding the granular material into the weighing hopper 7 and the weighing hopper. This is to improve the measurement accuracy of the powder or granular material put in 7. It should be noted that the control of the feeding speed of the granular material may be controlled based on the weight value of the granular material supplied to the weighing hopper 7, instead of the timer control. That is, a pre-stage set value that is lower than the measurement set value (W1) by a predetermined amount is set, and the electric motor 47 is driven at a relatively high speed until the measured value (W) from the load cell 70 reaches the pre-stage set value. Scraper 4
4 is placed in the fully open position and the powder or granules are charged at a high speed. When the measured value (W) from the load cell 70 reaches the preset value, the rotation speed of the electric motor 47 is reduced and the scraper 44 is moved to the half open position. It is also possible to position and control so that the granular material is charged at a low speed. First timer 116
Is started, the process proceeds to step S7, and a predetermined time (T
Check if 1) has been reached. Predetermined time (T1)
If the predetermined time (T1) has been reached, the process proceeds to step S8 and thereafter. In step S8, the electric motor 47 of the discharging means 4 is decelerated and controlled, and in step S9, the two-step operating air cylinder 45 is controlled to operate the scraper 44 to the half-open position. Next, the control unit 110 reads the measured value (W) from the load cell 70 (step S10),
It is checked whether or not the read measurement value (W) has reached the weighing set value (W1) (step S11). If the measured value (W) has not reached the measured set value (W1), the operation of the discharging means 4 is continued, and the measured value (W) becomes the measured set value (W).
When 1) is reached, the electric motor 47 is turned off and the discharging means 4
Operation of the first timer 11 is stopped (step S12).
6 is cleared (step S13). Next, the control unit 11
0 outputs a control signal to the air cylinder 86 to open the opening / closing damper 8 (step S14). As a result, the weighed powder or granular material is discharged from the weighing hopper 7, and is supplied to the container 10 through the chute 9. At the same time when the opening / closing damper 8 is opened in step S14, the second timer 117 is started (step S14). The time (T) after the opening and closing damper 8 is opened by the second timer 117 is measured, and it is checked whether or not a predetermined time (T2) has elapsed (step S16). If the time (T) after the opening / closing damper 8 has been opened has not reached the predetermined time (T2), wait, and if the predetermined time (T2) has elapsed, proceed to step S17 to close the opening / closing damper 8, In step S18, the second timer 117 is cleared and the weighing cycle ends. The weight of the powder or granular material supplied to the container 10 is measured by the load cell 16, and this measurement signal is sent to the control unit 110. Since the control unit 110 displays the measured value on the display unit 200 based on the measured signal, the operator can immediately confirm the weight of the powder or granular material supplied to the container 10.
【００１３】〈実験例１〉落差相当分のみを考慮し、集
塵機によって吸引される粉粒体の損失を考慮しない場合
の実験結果を表１に示す。<Experimental Example 1> Table 1 shows the experimental results when considering only the amount corresponding to the head and not considering the loss of the granular material sucked by the dust collector.
【００１４】[0014]
【表１】 上記実験結果によると、実際に容器に供給された量は定
量設定値に対して、平均０．２％少ないことがわかる。[Table 1] According to the above experimental results, it can be seen that the amount actually supplied to the container is 0.2% less on average than the set quantitative value.
【００１５】次に、上記実験結果に基づき、集塵機によ
って吸引される粉粒体の損失量を０．２％と予測し、損
失予測係数を０．００２に設定して実験を行った結果を
表２に示す。Next, based on the above experimental results, the loss amount of the granular material sucked by the dust collector is predicted to be 0.2%, and the result of the experiment is set by setting the loss prediction coefficient to 0.002. 2 shows.
【００１６】[0016]
【表２】 上記実験結果の通り、集塵機によって吸引される粉粒体
の損失を考慮して計量設定値を設定すると、計量設定値
が増加しても実際に容器に供給された量は定量設定値に
略合致していることがわかる。[Table 2] As shown in the above experimental results, if the metering set value is set in consideration of the loss of the particulate matter sucked by the dust collector, the amount actually supplied to the container does not substantially match the quantitative set value even if the metering set value increases. I understand what you are doing.
【００１７】[0017]
【発明の効果】本発明による粉体供給装置は、目標重量
である定量設定値と排出手段から排出され計量ホッパ間
（落差）に存在する粉粒体に相当する予測重量値と集塵
機に吸引される粉粒体の予測損失量とに基づいて設定さ
れた計量設定値と、計量ホッパに供給された粉粒体の重
量を測定する重量測定手段からの測定値とを比較して排
出手段を制御し、かつ排出開閉手段を制御するようにし
たので、落差相当分および集塵機によって吸引される粉
粒体の損失量をも補正して計量するため、実際に容器に
供給される粉粒体の量を定量設定値に略合致させること
ができる。EFFECTS OF THE INVENTION The powder supply device according to the present invention has a set weight which is the target weight, a predicted weight value corresponding to the powder particles discharged from the discharging means and present between the weighing hoppers (drops), and sucked by the dust collector. Controls the discharging means by comparing the weighing set value set based on the predicted loss amount of the granular material with the measured value from the weight measuring means for measuring the weight of the granular material supplied to the weighing hopper. In addition, since the discharge opening / closing means is controlled, the amount of powder or granules actually supplied to the container is adjusted to compensate for the drop and the loss of powder or granules sucked by the dust collector. Can be made to substantially match the quantitative set value.
【図１】本発明による粉体供給装置の一実施例を示す概
略構成ブロック図。FIG. 1 is a schematic block diagram showing an embodiment of a powder supply device according to the present invention.
【図２】図１の粉体供給装置を構成する収容ホッパおよ
び排出手段の断面図。FIG. 2 is a cross-sectional view of a storage hopper and a discharging unit that constitute the powder supply device of FIG.
【図３】図２に示す排出手段を構成するスクレーパ式フ
ィーダの斜視図。FIG. 3 is a perspective view of a scraper-type feeder that constitutes the discharging unit shown in FIG.
【図４】図１に示す粉体供給装置の制御手段の動作を説
明するフローチャート。FIG. 4 is a flowchart illustrating the operation of the control means of the powder supply device shown in FIG.
２：収容ホッパ ４：排出手段 ５：攪拌手段 ６：シュート ７：計量ホッパ ８：開閉ダンパ ９：シュート １０：容器 １２：ダクト １４：集塵機 １６：ロードセル ２６：排出口 ４１：回転軸 ４２：回転テーブル ４３：減速機 ４４：スクレーパ ４５：２段作動エアシリンダ ４７：電動モータ ４８：スリ切りカバー ７０：ロードセル ８６：エアシリンダ １００：制御手段 １１０：制御部 １２０：操作部 ２００：表示手段 2: Storage hopper 4: Ejection means 5: Stirring means 6: Chute 7: Weighing hopper 8: Opening / closing damper 9: Chute 10: Container 12: Duct 14: Dust collector 16: Load cell 26: Discharge port 41: Rotating shaft 42: Rotating table 43: reducer 44: scraper 45: two-stage operation air cylinder 47: electric motor 48: slitting cover 70: load cell 86: air cylinder 100: control means 110: control portion 120: operation portion 200: display means
───────────────────────────────────────────────────── フロントページの続き (72)発明者 内橋 寿克 神奈川県川崎市川崎区田辺新田１番１号 富士電機株式会社内 (72)発明者 竹村 悦郎 神奈川県川崎市川崎区田辺新田１番１号 富士電機株式会社内 (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 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshikatsu Uchihashi 1-1 Tanabe Nitta, Kawasaki-ku, Kawasaki City, Kanagawa Prefecture Fuji Electric Co., Ltd. No. 1 In Fuji Electric Co., Ltd. (72) Inventor Ikuo Wada 14 Nishishiji Road, Numazu City, Shizuoka Prefecture Akabu Engineering Co., Ltd.
Claims (1)
と、 該排出手段によって排出された粉粒体を収容する計量ホ
ッパと、 該計量ホッパに供給された粉粒体の重量を測定する重量
測定手段と、 前記計量ホッパに供給された粉粒体を排出する排出開口
開閉手段と、 前記計量ホッパから排出された粉粒体を収容する容器
と、 該容器に接続された集塵機と、 目標重量である定量設定値と前記排出手段から排出され
前記計量ホッパ間（落差）に存在する粉粒体に相当する
予測重量値と前記集塵機に吸引される粉粒体の予測損失
量とに基づいて設定された計量設定値と、前記重量測定
手段からの測定値とを比較して前記排出手段を制御し、
かつ前記排出開閉手段を制御する制御手段と、からなる
ことを特徴とする粉体供給装置。1. An accommodating hopper for accommodating the granular material, an ejecting means for ejecting the granular material accommodated in the accommodating hopper, and a weighing hopper for accommodating the granular material ejected by the ejecting means, A weight measuring unit that measures the weight of the powder or granular material supplied to the weighing hopper, a discharge opening opening / closing unit that discharges the powder or granular material supplied to the weighing hopper, and a powder or granular material discharged from the weighing hopper. A container to be stored, a dust collector connected to the container, a fixed weight set value which is a target weight, a predicted weight value corresponding to powder particles discharged from the discharging means and present between the weighing hoppers (drop), and the dust collector Control the discharge means by comparing the measured set value set based on the predicted loss amount of the powder or granules sucked into the measured value from the weight measuring means,
And a control means for controlling the discharge opening / closing means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27886593A JP2654463B2 (en) | 1993-10-13 | 1993-10-13 | Powder supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27886593A JP2654463B2 (en) | 1993-10-13 | 1993-10-13 | Powder supply device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07113680A true JPH07113680A (en) | 1995-05-02 |
| JP2654463B2 JP2654463B2 (en) | 1997-09-17 |
Family
ID=17603208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27886593A Expired - Lifetime JP2654463B2 (en) | 1993-10-13 | 1993-10-13 | Powder supply device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2654463B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008538345A (en) * | 2005-04-22 | 2008-10-23 | シェンク プロセス ゲーエムベーハー | Bulk material storage container |
| JP2012103037A (en) * | 2010-11-08 | 2012-05-31 | Ricoh Co Ltd | Exhaust device of automatic measuring/charging equipment |
| JP2014118278A (en) * | 2012-12-18 | 2014-06-30 | Funken Pautekkusu:Kk | Powder supply amount control device for powder continuous constant flow feeder |
| JP2015231886A (en) * | 2014-06-09 | 2015-12-24 | 新日鐵住金株式会社 | Fluid load return facility and fluid load return method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7173493B2 (en) * | 2019-11-14 | 2022-11-16 | グローバルマテリアルズエンジニアリング株式会社 | Granular quantitative feeder |
-
1993
- 1993-10-13 JP JP27886593A patent/JP2654463B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008538345A (en) * | 2005-04-22 | 2008-10-23 | シェンク プロセス ゲーエムベーハー | Bulk material storage container |
| JP2012103037A (en) * | 2010-11-08 | 2012-05-31 | Ricoh Co Ltd | Exhaust device of automatic measuring/charging equipment |
| JP2014118278A (en) * | 2012-12-18 | 2014-06-30 | Funken Pautekkusu:Kk | Powder supply amount control device for powder continuous constant flow feeder |
| JP2015231886A (en) * | 2014-06-09 | 2015-12-24 | 新日鐵住金株式会社 | Fluid load return facility and fluid load return method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2654463B2 (en) | 1997-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101596472B1 (en) | Device and method for obtaining non-ferrous metals | |
| US20160288293A1 (en) | Magnetic separator with dynamic baffle system | |
| JPH07113680A (en) | Powder material supply equipment | |
| JPS62259019A (en) | Automatic weighing device | |
| JP2714653B2 (en) | Scraper type table feeder | |
| JPS62259018A (en) | Weighing device for apparent specific gravity measurement | |
| JPH10291650A (en) | Alloy steel powder quantitative taking-out device | |
| JP2741667B2 (en) | Separate garbage truck | |
| JPH0694131B2 (en) | Mixer for raw materials | |
| CN218365927U (en) | Crushing and collecting device of waste air conditioner shell | |
| JP2546612Y2 (en) | Device for quantitative discharge of contents | |
| US3221380A (en) | Ladle addition feeding mechanism with independently controlled feeder conveyor | |
| JP4197793B2 (en) | Ready-mixed concrete production equipment | |
| JP3480025B2 (en) | Granulation status monitoring device for dish granulator | |
| US3318228A (en) | Feed mixing and processing mechanism | |
| CN219989550U (en) | Automatic charging machine for blind opening tank | |
| JPH0338657Y2 (en) | ||
| US3841523A (en) | Dispenser for feed grains and the like | |
| JPH06198269A (en) | Dust discharge device | |
| JP3933721B2 (en) | Hollow container loading device for hollow container press | |
| JP3458191B2 (en) | Automatic sorting and weighing machine with built-in moisture content meter | |
| JP3254591B2 (en) | Residual grain discharge device in grain sorter | |
| JPH09229752A (en) | Particle weighing device and weighing method therefor | |
| SU1390537A1 (en) | Device for testing blast furnace charge material | |
| JPH1061983A (en) | Ice weighing device in ice storage device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19970318 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313115 |
|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090530 Year of fee payment: 12 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100530 Year of fee payment: 13 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100530 Year of fee payment: 13 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110530 Year of fee payment: 14 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110530 Year of fee payment: 14 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313117 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110530 Year of fee payment: 14 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110530 Year of fee payment: 14 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313115 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110530 Year of fee payment: 14 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120530 Year of fee payment: 15 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120530 Year of fee payment: 15 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130530 Year of fee payment: 16 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130530 Year of fee payment: 16 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140530 Year of fee payment: 17 |
|
| EXPY | Cancellation because of completion of term |