JPH09216688A - Agitator for hopper - Google Patents
Agitator for hopperInfo
- Publication number
- JPH09216688A JPH09216688A JP8018974A JP1897496A JPH09216688A JP H09216688 A JPH09216688 A JP H09216688A JP 8018974 A JP8018974 A JP 8018974A JP 1897496 A JP1897496 A JP 1897496A JP H09216688 A JPH09216688 A JP H09216688A
- Authority
- JP
- Japan
- Prior art keywords
- hopper
- shaft
- stirrer
- agitator
- around
- 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.)
- Withdrawn
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、内部に貯留された
粒状物を下端から排出するホッパにおける、粒状物の排
出不良を防止するホッパ用攪拌器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hopper agitator for preventing defective discharge of particulate matter in a hopper that discharges the particulate matter stored therein from the lower end.
【０００２】[0002]
【従来の技術】顆粒や粉体等の粒状体を供給するための
ホッパとして、例えば図３に示すような構造のものがあ
る。このホッパ１は下方に凸なる円錐状をなし、その下
端には、開閉弁２により開閉自在とされた開口部３が形
成されている。そして、ホッパ１内部に粒状物が貯留さ
れた状態で開閉弁２を開けることにより、粒状物が開口
部３から下方へと排出、供給される。2. Description of the Related Art As a hopper for supplying a granular material such as granules or powder, there is one having a structure as shown in FIG. The hopper 1 has a conical shape protruding downward, and an opening 3 that can be opened and closed by an opening / closing valve 2 is formed at the lower end of the hopper 1. Then, by opening the on-off valve 2 while the granular material is stored inside the hopper 1, the granular material is discharged and supplied downward from the opening 3.
【０００３】[0003]
【発明が解決しようとする課題】ところで、上記ホッパ
１にあっては、粒状物の排出に伴い、例えば図３中符号
Ｂで示すように、ホッパ１内部の開口部３近傍に粒状物
が詰まって粒状物の更なる排出が困難となる、いわゆる
ブリッジ現象が起こる場合があった。そこで、従来か
ら、ホッパ１を外側から叩いたりホッパ１の外周面に振
動子を取り付ける等してホッパ１を振動させたり、ある
いは図４及び図５に示すような攪拌器４，４ａを用いて
粒状物を攪拌する等の方法により、ブリッジ現象の防止
が試みられてきた。By the way, in the hopper 1, as the particulate matter is discharged, the particulate matter is clogged in the vicinity of the opening 3 inside the hopper 1 as shown by a symbol B in FIG. 3, for example. In some cases, a so-called bridge phenomenon occurs, which makes it difficult to further discharge the particulate matter. Therefore, conventionally, the hopper 1 is vibrated by hitting the hopper 1 from the outside, attaching a vibrator to the outer peripheral surface of the hopper 1, or the like, or using agitators 4 and 4a as shown in FIGS. 4 and 5. Attempts have been made to prevent the bridging phenomenon by methods such as stirring the granular material.
【０００４】このうち、図４に示す攪拌器４は、ホッパ
１内にホッパ１と同軸をなすよう垂下されたシャフト５
の軸線回りに攪拌用のスクリュー６を螺旋状に配設した
もの、図５に示す攪拌器４ａは、シャフト５に、ホッパ
１の径方向外方に向け攪拌用の突起７を複数本植設した
ものである。これらの攪拌器４は、シャフト５を回転さ
せてコイル６や突起７により粒状体を攪拌し、粒状体の
流動性を向上させることによる、ブリッジ現象の防止を
目的としている。Among them, the agitator 4 shown in FIG. 4 has a shaft 5 suspended in the hopper 1 so as to be coaxial with the hopper 1.
A screw 6 for stirring is arranged spirally around the axis line of FIG. 5, and a stirrer 4a shown in FIG. 5 has a shaft 5 having a plurality of stirrer projections 7 radially outwardly of the hopper 1. It was done. These stirrers 4 are intended to prevent the bridge phenomenon by rotating the shaft 5 to stir the particles by the coils 6 and the protrusions 7 to improve the fluidity of the particles.
【０００５】しかしながら、上記従来の方法のうち、ホ
ッパ１を振動させる方法では、振動に伴い騒音が発生し
たり、あるいは、振動に伴う金属疲労によりホッパ１の
寿命が短縮する等の問題があった。また、攪拌器４，４
ａを用いる方法では、攪拌により外側に押し付けられた
粒状物がホッパ１の内周面近傍に残留しやすく、粒状物
の均一な排出、供給が行われない場合があった。特に、
ホッパ１内に貯留された粒状物の量が多い場合には、振
動や攪拌の効果がホッパ１内の全域に伝わりにくく、ブ
リッジ現象を完全に防止することは不可能であった。However, among the above-mentioned conventional methods, the method of vibrating the hopper 1 has a problem that noise is generated due to the vibration or the life of the hopper 1 is shortened due to metal fatigue caused by the vibration. . Also, stirrers 4, 4
In the method using a, the granular material pressed to the outside by stirring tends to remain in the vicinity of the inner peripheral surface of the hopper 1, and the granular material may not be uniformly discharged and supplied. Especially,
When the amount of the particulate matter stored in the hopper 1 is large, the effect of vibration or stirring is difficult to be transmitted to the entire area of the hopper 1, and it is impossible to completely prevent the bridge phenomenon.
【０００６】本発明は上記事情に鑑みてなされたもの
で、粒状物の排出時におけるブリッジ現象を、ホッパ１
に悪影響を与えることなく、かつホッパ１内に貯留され
た粒状物の多寡に係わらず完全に防止可能な攪拌装置の
提供をその目的としている。The present invention has been made in view of the above circumstances, and the hopper 1 prevents the bridge phenomenon at the time of discharging particulate matter.
It is an object of the present invention to provide a stirring device that does not adversely affect the above and can completely prevent regardless of the amount of the particulate matter stored in the hopper 1.
【０００７】[0007]
【課題を解決するための手段】本発明は、下方に凸なる
円錐状をなし、内部に貯留された粒状物を、下端に形成
された開口部から排出するホッパにおける、上記粒状物
の排出不良を防止するためのホッパ用攪拌器であって、
特に、上記ホッパ内に上記ホッパと同軸をなすよう垂下
されたシャフトと、このシャフトの周囲に、回転軌跡が
上記ホッパの内周面と所定幅の隙間を介して円錐状をな
す螺旋状に配設され、かつ両端がそれぞれ上記シャフト
の上部及び下端部に固定された攪拌棒と、上記シャフト
をその軸線回りに回転させる駆動源とを具備することを
その特徴としている。DISCLOSURE OF THE INVENTION According to the present invention, in a hopper which has a conical shape protruding downward and discharges the granular material stored therein through an opening formed at a lower end, the defective discharging of the granular material is not possible. A stirrer for a hopper for preventing
In particular, a shaft is hung in the hopper so as to be coaxial with the hopper, and a spiral locus is arranged around the shaft in a conical shape with a clearance of a predetermined width from the inner peripheral surface of the hopper. It is characterized in that it is provided with a stirring rod which is provided and whose both ends are fixed to the upper and lower ends of the shaft, and a drive source for rotating the shaft around its axis.
【０００８】ここで、攪拌棒は、水平面に対し２０〜５
０゜の角度で傾斜していることが望ましい。また、上記
攪拌棒は、円錐状をなし、かつ表面にその軸線回りに螺
旋状をなすガイドレールが固定された治具に、金属棒を
上記ガイドレールに沿って巻き付けて形成するとよい。Here, the stirring bar is 20 to 5 with respect to the horizontal plane.
It is desirable to incline at an angle of 0 °. The stirring rod may be formed by winding a metal rod along the guide rail on a jig having a conical shape and a guide rail having a spiral shape around the axis thereof fixed to the surface of the jig.
【０００９】[0009]
【発明の実施の形態】以下、図面に基づき、本発明の実
施の形態について詳細に説明する。なお、本発明はホッ
パ用攪拌器に関するものであるため、ホッパを構成する
部材については、上記図３ないし図５と同様の符号を付
して、その説明を省略する。Embodiments of the present invention will be described below in detail with reference to the drawings. Since the present invention relates to a hopper stirrer, members constituting the hopper are designated by the same reference numerals as those in FIGS. 3 to 5, and description thereof will be omitted.
【００１０】本発明に係るホッパ用攪拌器の一例を図１
に示す。符号１１はホッパ１内にホッパ１と同軸をなす
よう垂下されたシャフトで、シャフト１１の周囲には、
螺旋状をなす攪拌棒１２が、その回転軌跡Ｋがホッパ１
の内周面と所定幅の隙間Ｓを介して円錐状をなすよう配
設され、かつ攪拌棒１２の両端は、それぞれ溶接等の方
法で、シャフト１１の上部及び下端部に固定されてい
る。また、符号１３は、シャフト１１の上端に連結さ
れ、シャフト１１をその軸線回りに回転させるモータ
（駆動源）である。そして、上記シャフト１１、攪拌棒
１２、及びモータ１３から、ホッパ用攪拌器１４が概略
構成されている。An example of a stirrer for a hopper according to the present invention is shown in FIG.
Shown in Reference numeral 11 denotes a shaft suspended in the hopper 1 so as to be coaxial with the hopper 1.
The spiral stirring rod 12 has its rotation locus K with the hopper 1.
Is arranged so as to form a conical shape with a gap S having a predetermined width from the inner peripheral surface of the shaft, and both ends of the stirring rod 12 are fixed to the upper and lower ends of the shaft 11 by a method such as welding. Reference numeral 13 is a motor (drive source) that is connected to the upper end of the shaft 11 and rotates the shaft 11 around its axis. Then, the shaft 11, the stirring rod 12, and the motor 13 roughly constitute a stirrer 14 for a hopper.
【００１１】ここで、ブリッジ現象の防止効果向上のた
めには、攪拌棒１２は、水平面に対し、２０〜５０゜の
角度で傾斜していることが望ましい。図１の場合、水平
面と攪拌棒１２とのなす角θは３０゜である。また、攪
拌棒１２の回転軌跡Ｋとホッパ１の内周面との間の隙間
Ｓは、ホッパ１のサイズやホッパ１内に貯留される粒状
物の種類等により適宜設定する。図１の場合、上記隙間
Ｓは４０ｍｍである。Here, in order to improve the effect of preventing the bridge phenomenon, it is desirable that the stirring rod 12 be inclined at an angle of 20 to 50 ° with respect to the horizontal plane. In the case of FIG. 1, the angle θ between the horizontal surface and the stirring rod 12 is 30 °. Further, the gap S between the rotation locus K of the stirring rod 12 and the inner peripheral surface of the hopper 1 is appropriately set depending on the size of the hopper 1, the type of particulate matter stored in the hopper 1, and the like. In the case of FIG. 1, the gap S is 40 mm.
【００１２】ホッパ１からの粒状物の排出に際しては、
モータ１３のスイッチを入れ、シャフト１１を回転させ
る。すると、攪拌棒１２の回転に伴い粒状体中に渦流が
形成されて粒状体の流動性が向上し、ブリッジ現象が防
止される。When discharging the particulate matter from the hopper 1,
Switch on the motor 13 and rotate the shaft 11. Then, as the stirring rod 12 rotates, a vortex is formed in the granular material, the fluidity of the granular material is improved, and the bridge phenomenon is prevented.
【００１３】また、攪拌棒１２が、その回転軌跡Ｋがホ
ッパ１の内周面と所定幅の隙間Ｓを介して円錐状をなす
よう配設されているため、ホッパ１の内周面近傍でも粒
状物の攪拌が良好に行われる。従って、ホッパ１の内周
面近傍における粒状物の残留が防止され、かつ攪拌によ
り粒状物が外側に押し付けられることもない。しかも、
粒状物がホッパ１の外周側からホッパ１内の全域にわた
り攪拌されるため、ホッパ１内に貯留された粒状物の量
が多い場合でも、ブリッジ現象が完全に防止可能となっ
ている。一方、ホッパ１に振動を与えないため、騒音が
発生せず、かつホッパ１における金属疲労等も起こらな
い。Further, since the stirring rod 12 is arranged so that its rotation locus K is conical with the inner peripheral surface of the hopper 1 with a gap S having a predetermined width therebetween, even near the inner peripheral surface of the hopper 1. The granules are well agitated. Therefore, the granular material is prevented from remaining in the vicinity of the inner peripheral surface of the hopper 1, and the granular material is not pressed outward by stirring. Moreover,
Since the granular material is agitated from the outer peripheral side of the hopper 1 over the entire area of the hopper 1, the bridging phenomenon can be completely prevented even when the amount of the granular material stored in the hopper 1 is large. On the other hand, since the hopper 1 is not vibrated, noise is not generated, and metal fatigue or the like in the hopper 1 does not occur.
【００１４】なお、攪拌棒１２は、図２に示すような、
円錐状をなし、かつ表面にその軸線回りに螺旋状をなす
ガイドレール１５が固定された治具１６に、金属棒をガ
イドレール１５に沿って巻き付けることにより、容易か
つ安価に形成可能である。具体的には、治具１６の頂点
に金属棒を仮溶接し、この金属棒を、アセチレンガス等
にて加熱しつつガイドレール１５に沿って巻き付けるこ
とにより形成する。The stirring rod 12 has a structure as shown in FIG.
The metal rod can be easily and inexpensively formed by winding the metal rod along the guide rail 15 around the jig 16 having the conical shape and the guide rail 15 having the spiral shape around the axis thereof fixed to the surface thereof. Specifically, a metal rod is temporarily welded to the apex of the jig 16, and the metal rod is wound along the guide rail 15 while being heated with acetylene gas or the like.
【００１５】[0015]
【発明の効果】以上説明した通り、本発明の攪拌棒によ
れば、粒状物の排出時におけるブリッジ現象を、ホッパ
に悪影響を与えることなく、かつホッパ内に貯留された
粒状物の多寡に係わらず完全に防止することが可能であ
る。As described above, according to the stirring rod of the present invention, the bridging phenomenon at the time of discharging the particulate matter is not affected by the hopper and does not affect the amount of the particulate matter stored in the hopper. It is possible to prevent it completely.
【図１】本発明のホッパ用攪拌器を取り付けたホッパの
例を示す断面図である。FIG. 1 is a cross-sectional view showing an example of a hopper provided with a hopper stirrer of the present invention.
【図２】本発明のホッパ用攪拌器における攪拌棒の製造
に使用される治具の例を示す上方斜視図である。FIG. 2 is an upper perspective view showing an example of a jig used for manufacturing a stirring rod in the hopper stirrer of the present invention.
【図３】一般的なホッパの構造及びホッパにおけるブリ
ッジ現象の発生例を示す断面図である。FIG. 3 is a cross-sectional view showing a structure of a general hopper and an example of occurrence of a bridging phenomenon in the hopper.
【図４】従来のホッパ用攪拌器を取り付けたホッパの例
を示す断面図である。FIG. 4 is a cross-sectional view showing an example of a hopper to which a conventional hopper stirrer is attached.
【図５】従来のホッパ用攪拌器を取り付けたホッパの例
を示す断面図である。FIG. 5 is a cross-sectional view showing an example of a conventional hopper to which a conventional hopper stirrer is attached.
１ ホッパ ３ 開口部 ４，４ａ，１４ ホッパ用攪拌器 ５，１１ シャフト １２ 攪拌棒 １３ モータ（駆動源） １５ ガイドレール １６ 治具 Ｋ 攪拌棒の回転軌跡 Ｓ 攪拌棒の回転軌跡とホッパ内周面との間の隙間 1 Hopper 3 Opening 4,4a, 14 Stirrer for Hopper 5,11 Shaft 12 Stirring bar 13 Motor (driving source) 15 Guide rail 16 Jig K Rotation locus of stirring rod S Rotation locus of stirring rod and inner surface of hopper The gap between
Claims (3)
された粒状物を、下端に形成された開口部から排出する
ホッパにおける、上記粒状物の排出不良を防止するため
のホッパ用攪拌器であって、 上記ホッパ内に上記ホッパと同軸をなすよう垂下された
シャフトと、このシャフトの周囲に、回転軌跡が上記ホ
ッパの内周面と所定幅の隙間を介して円錐状をなす螺旋
状に配設され、かつ両端がそれぞれ上記シャフトの上部
及び下端部に固定された攪拌棒と、上記シャフトをその
軸線回りに回転させる駆動源とを具備することを特徴と
するホッパ用攪拌器。1. A hopper agitator for preventing defective discharge of the granular material in a hopper which has a downwardly conical convex shape and discharges the granular material stored therein through an opening formed at the lower end. A shaft suspended in the hopper so as to be coaxial with the hopper, and a spiral whose rotation trajectory is a conical shape with a gap of a predetermined width with the inner peripheral surface of the hopper around the shaft. A stirrer for a hopper, comprising: a stirrer, which is arranged in a circular shape and whose both ends are fixed to the upper and lower ends of the shaft, and a drive source for rotating the shaft around its axis.
゜の角度で傾斜していることを特徴とする請求項１記載
のホッパ用攪拌器。2. The stirring bar is 20 to 50 with respect to a horizontal plane.
The stirrer for a hopper according to claim 1, wherein the stirrer is inclined at an angle of °.
にその軸線回りに螺旋状をなすガイドレールが固定され
た治具に、金属棒を上記ガイドレールに沿って巻き付け
ることにより形成されたものであることを特徴とする請
求項１または２記載のホッパ用攪拌器。3. The stirring rod is formed by winding a metal rod along the guide rail around a jig having a conical shape and a guide rail having a spiral shape around the axis thereof is fixed to the surface of the jig. The agitator for a hopper according to claim 1 or 2, wherein the agitator is a hopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8018974A JPH09216688A (en) | 1996-02-05 | 1996-02-05 | Agitator for hopper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8018974A JPH09216688A (en) | 1996-02-05 | 1996-02-05 | Agitator for hopper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09216688A true JPH09216688A (en) | 1997-08-19 |
Family
ID=11986618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8018974A Withdrawn JPH09216688A (en) | 1996-02-05 | 1996-02-05 | Agitator for hopper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09216688A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2602212A1 (en) | 2011-12-08 | 2013-06-12 | Kubota Corporation | Powder/granular material feeding device |
| CN109201292A (en) * | 2018-08-28 | 2019-01-15 | 杭州富阳锡平建筑劳务有限公司 | Miberal powder bucket discharging guide device |
| CN113042204A (en) * | 2021-03-11 | 2021-06-29 | 迁安市天祥铁选有限公司 | Fishing machine |
-
1996
- 1996-02-05 JP JP8018974A patent/JPH09216688A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2602212A1 (en) | 2011-12-08 | 2013-06-12 | Kubota Corporation | Powder/granular material feeding device |
| US8820586B2 (en) | 2011-12-08 | 2014-09-02 | Kubota Corporation | Powder/granular material feeding device |
| CN109201292A (en) * | 2018-08-28 | 2019-01-15 | 杭州富阳锡平建筑劳务有限公司 | Miberal powder bucket discharging guide device |
| CN113042204A (en) * | 2021-03-11 | 2021-06-29 | 迁安市天祥铁选有限公司 | Fishing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Application deemed to be withdrawn because no request for examination was validly filed |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20030506 |