JP2020050496A - Vibratory conveyor - Google Patents
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Abstract
Description
本発明は、振動によってトラフ上の搬送対象物を振動搬送することが可能な振動コンベアに関するものである。 The present invention relates to a vibrating conveyor capable of vibrating and conveying an object to be conveyed on a trough by vibration.
従来より、振動によってトラフ上の搬送対象物を振動搬送可能な振動コンベアが知られている（例えば特許文献１）。振動コンベアは、例えば砂糖等の粉粒体である搬送対象物の搬送に用いられる。振動コンベアを用いると、トラフの幅方向一杯に広がった粉粒体はトラフの搬送面上を一様な層厚で搬送されることになる。 2. Description of the Related Art Conventionally, a vibration conveyor capable of vibrating and conveying an object to be conveyed on a trough by vibration has been known (for example, Patent Document 1). The vibrating conveyor is used for conveying an object to be conveyed, such as a powdered material such as sugar. When the vibrating conveyor is used, the granular material that has spread to the full width of the trough is conveyed on the conveying surface of the trough with a uniform layer thickness.
ここで、トラフに与える振動の振幅や周波数、振動角を一定とした場合、搬送量はトラフ上の粉粒体の層厚によって決まる。したがって、トラフ上の粉粒体の層厚を大きくすることにより振動コンベアによる搬送対象物の搬送量を増大することができる。 Here, when the amplitude, frequency, and vibration angle of the vibration applied to the trough are constant, the transport amount is determined by the layer thickness of the granular material on the trough. Therefore, by increasing the layer thickness of the granular material on the trough, it is possible to increase the transport amount of the transport target by the vibrating conveyor.
しかしながら、トラフ上の粉粒体の層厚が一定の厚さ（粉粒体の材料によってこの層厚は異なる）を越えると、粉粒体が加振源によるトラフの振動を吸収してしまい、トラフの振動が粉粒体層の上方まで伝播されず、トラフ上の粉粒体の層厚全体をスムーズに搬送することができないという現象が生じる。したがって、トラフへ供給する粉粒体の層厚を大きくしても搬送量を一定量以上に増大できず、振動コンベアの設置面積当たりの搬送量に限界が生じる。 However, when the layer thickness of the granular material on the trough exceeds a certain thickness (this layer thickness varies depending on the material of the granular material), the granular material absorbs the vibration of the trough caused by the vibration source, A phenomenon occurs in which the vibration of the trough is not propagated above the granular material layer, and the entire thickness of the granular material on the trough cannot be smoothly transported. Therefore, even if the layer thickness of the granular material supplied to the trough is increased, the transport amount cannot be increased to a certain amount or more, and the transport amount per installation area of the vibration conveyor is limited.
振動コンベアの導入現場からは、振動コンベアの設置面積の増大を回避しつつ、搬送量を増大したいという要求がある。そこで、加振源の加振力を増大することでトラフの単位幅当たりの搬送量増大化を図ることが考えられる。しかし、増大する加振力に耐える構造が振動コンベア全体に要求されることになり、振動コンベア全体の大掛かりな設計変更を招来する。 From the site of introduction of the vibration conveyor, there is a demand to increase the transport amount while avoiding an increase in the installation area of the vibration conveyor. Therefore, it is conceivable to increase the transport amount per unit width of the trough by increasing the excitation force of the excitation source. However, a structure that can withstand the increased excitation force is required for the entire vibrating conveyor, resulting in a large-scale design change of the entire vibrating conveyor.
本発明者は、鋭意研究の結果、駆動部の加振力を増大することなく、振動コンベア全体の単位時間当たりの粉粒体搬送量の増大化、及び設置面積当たりの粉粒体搬送量の増大化を実現可能な本発明に係る振動コンベアを想到するに至った。いずれ As a result of intensive research, the present inventor has found that, without increasing the exciting force of the drive unit, the amount of the granular material transported per unit time of the entire vibration conveyor and the amount of the granular material transported per installation area are increased. The inventor has conceived a vibration conveyor according to the present invention that can realize the increase. Either
すなわち本発明に係る振動コンベアは、加振源からの振動でトラフを振動させることによってトラフ上の搬送対象物である粉粒体を所定の搬送方向に搬送させる振動機の一種であり、トラフを複数段状に設け、これら各トラフ上の粉粒体の層厚を所定値以下に規制する層厚規制部を備え、層厚規制部によって各トラフ上の粉粒体の層厚が各トラフにおける粉粒体の最大搬送量となる最大層厚と一致または最大層厚よりも低い層厚となるように構成していることを特徴としている。ここで、搬送対象物である粉粒体としては、例えば砂糖等の食品を挙げることができ、その他に、化学、薬品、肥料、ガラス、セメント、タバコなどの原料、さらには鉱石、石炭等を挙げることができる。 That is, the vibrating conveyor according to the present invention is a type of a vibrator that conveys a granular material that is an object to be conveyed on the trough in a predetermined conveying direction by vibrating the trough with vibration from a vibration source. A plurality of steps are provided, and a layer thickness regulating section is provided for regulating the layer thickness of the granular material on each of the troughs to a predetermined value or less, and the layer thickness of the granular material on each trough in each trough is controlled by the layer thickness regulating section. The present invention is characterized in that the layer thickness is configured to be equal to or lower than the maximum layer thickness that is the maximum transport amount of the granular material. Here, as the granular material to be transported, for example, food such as sugar can be mentioned, and in addition, raw materials such as chemistry, chemicals, fertilizer, glass, cement, tobacco, and ore, coal, etc. Can be mentioned.
このような本発明に係る振動コンベアであれば、複数のトラフを高さ方向に段状に設けることで設置面積の増大を回避しつつ、複数段状に設けた各トラフにおける粉粒体の層厚を、層厚規制部によって各トラフにおける粉粒体の最大搬送量となる最大層厚と一致または最大層厚よりも低い層厚となるように構成しているため、トラフ上の粉粒体の層厚が最大層厚を越えた状態で搬送した場合に生じる不具合、つまり、加振源によるトラフの振動を粉粒体が吸収する事象等に起因してトラフの振動が粉粒体層の上方まで伝播されず、トラフ上の粉粒体層全体をスムーズに搬送できないという不具合の発生を防止・抑制することが可能であり、各トラフの単位幅当たりの搬送量増大化を実現することができ、このようなトラフを複数段備えていることで、振動コンベア全体の単位時間当たりの粉粒体搬送量及び振動コンベアの設置面積当たりの粉粒体搬送量を増大することができる。 In the case of such a vibration conveyor according to the present invention, the layer of the granular material in each of the plurality of troughs is provided while avoiding an increase in installation area by providing a plurality of troughs in a step shape in the height direction. Since the thickness is configured to be equal to or smaller than the maximum layer thickness that is the maximum transport amount of the granular material in each trough by the layer thickness regulating unit, the granular material on the trough is That occurs when the powder is transported with the layer thickness exceeding the maximum layer thickness, i.e., the vibration of the trough caused by the vibration source is absorbed by the granular material. It is possible to prevent or suppress the occurrence of the problem that the entire granular material layer on the trough cannot be smoothly transported without being propagated upward, and it is possible to increase the transport amount per unit width of each trough. Yes, it has multiple levels of such troughs And in, it is possible to increase the granular material conveyance amount per installation area of the particulate material transport amount and the vibration conveyor per unit of time the whole vibration conveyor.
なお、特開平１０−０２５０１６号公報、特開平０５−２３７３５９号公報、実公平０５−００２４９３号公報には、トラフを多段状に配置した供給装置が開示されているが、当該装置は、各トラフの供給量を均一にすることを目的とするものであり、本発明の根幹である「トラフ上の粉粒体の層厚を規制して搬送量の増大化を図る」という技術的思想については何ら開示されていない。 Japanese Patent Application Laid-Open Nos. 10-025016, 05-237359, and 05-002493 disclose a supply device in which troughs are arranged in a multi-stage manner. The purpose of the present invention is to make the supply amount uniform, and the technical idea of "regulating the layer thickness of the granular material on the trough to increase the transport amount", which is the basis of the present invention, is described. Nothing is disclosed.
本発明における層厚規制部の一例として、各トラフに対応して設けられ且つトラフの搬送面との間に粉粒体の通過を搬送面から所定高さ位置まで許容する開口部を形成する仕切り部を備えたものを挙げることができる。層厚規制部がこのような仕切り部を用いたものであれば、各トラフ上の粉粒体のうち仕切り部よりも搬送方向下流側の粉粒体の層厚が最大層厚と一致または最大層厚よりも低い層厚となる振動コンベアを比較的簡単な構成で実現できる。「粉粒体の通過を許容する開口部」の形状は、搬送方向に沿って開口部に正対した場合に、四角形または五角形（ホームベース形状）、あるいは三角形等の多角形状であってもよいし、一部に部分円弧状を有する形状（トンネル形状）であってもよい。なお、搬送面上の粉粒体は、トラフからの振動を受けて振動トラフの幅方向全体に亘って広がった状態で搬送され、この粉粒体層の上向き面はフラットな面になる傾向がある。したがって、「粉粒体の通過を許容する開口部」の形状によっては、仕切り部を通過直後の粉粒体層の上向き面がフラットな面でなく、幅方向において高低がある面になる態様もある。しかしながら、仕切り部の通過後も振動搬送されることで粉粒体層の上向き面はやがてフラットな面になる。本発明に係る振動コンベアが備える層厚規制部は、上向き面がフラットな状態にある粉粒体の層厚が、最大層厚と一致または最大層厚よりも低い層厚となるように規制するものである。 As an example of the layer thickness regulating portion in the present invention, a partition is provided corresponding to each trough and forms an opening between the transport surface of the trough and a passage that allows passage of the granular material from the transport surface to a predetermined height position. And those provided with a part. If the layer thickness regulating unit uses such a partition, the layer thickness of the granular material on each trough on the downstream side in the transport direction from the partition is equal to or the maximum layer thickness. A vibration conveyor having a layer thickness lower than the layer thickness can be realized with a relatively simple configuration. The shape of the “opening allowing the passage of the granular material” may be a quadrangle or a pentagon (home base shape) or a polygonal shape such as a triangle when facing the opening along the transport direction. However, a shape having a partial arc shape (tunnel shape) may be partially used. The granular material on the conveying surface is conveyed in a state of being spread over the entire width direction of the vibrating trough under vibration from the trough, and the upward surface of the granular material layer tends to be a flat surface. is there. Therefore, depending on the shape of the “opening allowing the passage of the granular material”, the upward surface of the granular material layer immediately after passing through the partition is not a flat surface, but may be a surface having a height in the width direction. is there. However, even after passing through the partition portion, the upward surface of the granular material layer becomes a flat surface due to the vibration and conveyance. The layer thickness regulating portion provided in the vibrating conveyor according to the present invention regulates the layer thickness of the granular material having the flat upward surface to be the same as or smaller than the maximum layer thickness. Things.
本発明に係る振動コンベアにおいて、多段状のトラフのうち先ず最下段のトラフ内に粉粒体を供給し、仕切り部によって粉粒体の層厚を規制した状態（層厚規制状態）になることによって当該トラフへの粉粒体の供給量を制限しながら層厚規制状態を維持しつつ、粉粒体を下から２段目のトラフ内に供給し、このトラフに関しても仕切り部によって層厚規制状態になることによって当該トラフへの粉粒体の供給量を制限しながら層厚規制状態を維持しつつ、粉粒体をしたから３段目のトラフ内に供給する、というようなステップを経るように構成すれば、複雑な案内経路を設けずに粉粒体を高さ方向に並ぶ各トラフに順番に供給しながら各トラフの単位幅当たりの搬送量増大化を実現することができる。すなわち、本発明において、層厚規制部を仕切り部で構成した場合には、各トラフの供給口に連続する共通の投入口に供給された粉粒体を多段状のトラフのうち相対的に下側のトラフの供給口から当該トラフに供給し、当該トラフが仕切り部によって粉粒体の層厚を規制する層厚規制状態になることで、投入口に供給された粉粒体が、層厚規制状態にあるトラフよりも相対的に上側のトラフの供給口を通じて当該トラフに供給されるように構成することが好適である。 In the vibrating conveyor according to the present invention, the granular material is first supplied into the lowermost trough of the multi-stage trough, and the layer thickness of the granular material is regulated by the partition portion (layer thickness regulated state). The granular material is supplied into the second trough from the bottom while maintaining the layer thickness regulated state while restricting the supply amount of the granular material to the trough, and the thickness of the trough is regulated by the partitioning section. The state where the layer thickness regulation state is maintained while restricting the supply amount of the granular material to the trough by being in the state, and the granular material is supplied into the third-stage trough after the granular material is formed. With such a configuration, it is possible to increase the transport amount per unit width of each trough while supplying the granular materials sequentially to the troughs arranged in the height direction without providing a complicated guide route. That is, in the present invention, when the layer thickness regulating section is constituted by the partition section, the powder and granular material supplied to the common input port which is continuous with the supply port of each trough is relatively lowered among the multi-stage troughs. The trough is supplied from the supply port of the side trough to the trough, and the trough enters a layer thickness regulation state in which the partitioning section regulates the layer thickness of the granule, so that the granular material supplied to the input port has a layer thickness. It is preferable that the trough is supplied to the trough through a supply port of the trough relatively higher than the trough in the regulated state.
また、本発明における層厚規制部が、各トラフの供給口に連続する共通の投入口に設けられ且つ投入口に投入された粉粒体の供給先のトラフを選択して各トラフへの粉粒体の供給量を調整可能な供給量調整部と、各トラフ上の粉粒体のうち仕切り部よりも搬送方向下流側の粉粒体の層厚を判定する判定部とを備え、判定部による判定結果に基づいて供給量調整部の作動を制御するものであれば、各トラフの層厚規制状態の精度を高めることができ、振動コンベア全体による粉粒体の搬送効率が向上し、粉粒体の搬送量増大化を実現できる。「判定部による判定結果」の具体例としては、センサによって検知した粉粒体の層厚情報に基づく判定結果、あるいは撮像手段によって記録した画像情報に基づく判定結果を挙げることができる。 In addition, the layer thickness regulating section in the present invention is provided at a common input port that is continuous with the supply port of each trough, and selects a trough to which the granular material supplied to the input port is supplied, and supplies powder to each trough. A supply amount adjustment unit capable of adjusting the supply amount of the granules; and a determination unit that determines a layer thickness of the granules on the transport direction downstream side of the partition unit among the granules on each trough, If the control of the operation of the supply amount adjusting unit based on the determination result by the above can improve the accuracy of the layer thickness regulation state of each trough, the efficiency of transporting the granular material by the entire vibration conveyor is improved, It is possible to increase the transport amount of the granular material. Specific examples of the “judgment result by the judging unit” include a judgment result based on the layer thickness information of the granular material detected by the sensor or a judgment result based on the image information recorded by the imaging unit.
本発明では、層厚規制部の仕切り部として、トラフの搬送面から所定高さ位置に下端を位置付けた仕切り板を適用することで、簡単な構成で仕切り部を形成することができる。
本発明に係る振動コンベアは、トラフの段数に応じた複数の排出経路を有するホッパを備えたものであってもよい。この場合、排出経路から各トラフの供給口に供給する粉粒体の量を調整することによって各トラフ上の粉粒体の層厚を規制する層厚規制部を適用することができる。
In the present invention, a partition having a simple configuration can be formed by applying a partition plate having a lower end positioned at a predetermined height from the transport surface of the trough as the partition of the layer thickness regulating unit.
The vibration conveyor according to the present invention may include a hopper having a plurality of discharge paths according to the number of trough stages. In this case, a layer thickness regulating section that regulates the layer thickness of the granular material on each trough by adjusting the amount of the granular material supplied from the discharge path to the supply port of each trough can be applied.
本発明によれば、トラフを多段状に設け、各トラフ上における粉粒体の層厚を、最大層厚を越えないように規制する層厚規制部を備えた構成により、トラフ上の粉粒体層全体ごとスムーズに搬送することができ、設置面積の大型化を招来することなく、粉粒体の搬送量増大化を実現可能な振動コンベアを提供することができる。 According to the present invention, the troughs are provided in a multi-stage shape, and the layer thickness regulating portion that regulates the layer thickness of the granular material on each trough so as not to exceed the maximum layer thickness is provided. It is possible to provide a vibrating conveyor capable of smoothly transporting the entire body layer and realizing an increase in the transport amount of the granular material without increasing the installation area.
以下、本発明の一実施形態を、図面を参照して説明する。
本実施形態に係る振動コンベアＸは、図１及び図２（図１は振動コンベアＸの模式図であり、図２は図１の要部拡大図である）に示すように、搬送対象物である粉粒体Ｗが供給される供給口Ｔ１及び搬送した粉粒体Ｗを排出する排出口Ｔ２を有するトラフＴを高さ方向に複数配置したものである。振動コンベアＸは、例えば板バネ又はコイルバネ等の弾性復帰可能なパーツを介してトラフＴを所定方向に往復振動自在に支持するベース（図示省略）と、ベースに振動を付与する加振源（図示省略）とを備え、加振源が作動することによってベースに付与された振動が板バネやコイルバネを介してトラフＴに伝わり、トラフＴを往復振動させて、トラフＴ上の粉粒体Ｗを供給口Ｔ１から排出口Ｔ２に向かって振動搬送するものである。
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 and 2 (FIG. 1 is a schematic diagram of the vibration conveyor X, and FIG. 2 is an enlarged view of a main part of FIG. 1), the vibration conveyor X according to the present embodiment is an object to be conveyed. A plurality of troughs T having a supply port T1 to which a certain granular material W is supplied and a discharge port T2 for discharging the transported granular material W are arranged in a height direction. The vibration conveyor X includes a base (not shown) that supports the trough T so as to be able to reciprocate and vibrate in a predetermined direction via an elastically recoverable part such as a plate spring or a coil spring, and a vibration source (not shown) that applies vibration to the base. Omitted), the vibration applied to the base is transmitted to the trough T via a leaf spring or a coil spring by operating the vibration source, and the trough T is reciprocally oscillated. It vibrates and conveys from the supply port T1 to the discharge port T2.
トラフＴは、図２に示すように、粉粒体を載置して搬送する搬送面Ｔ３と、搬送面Ｔ３の両サイドから起立する左右一対の側方起立面Ｔ４とによって上方に開口した上向きコ字状（略樋状）をなし、天井面Ｔ５によって上方に開口した領域全体または略全体を被覆した構成を有するものである。本実施形態では、少なくとも幅寸法（左右方向の寸法）が同じである２つのトラフＴを高さ方向に並べて配置している。以下の説明では、相対的に下側のトラフＴを下段トラフＴＡとし、相対的に上側のトラフＴを上段トラフＴＢとする。本実施形態の振動コンベアＸでは、下段トラフＴＡ及び上段トラフＴＢの長手方向（搬送方向Ｆ）中心軸線が相互に一致するように下段トラフＴＡ及び上段トラフＴＢを配置している。 As shown in FIG. 2, the trough T is upwardly opened by a transport surface T3 on which the granular material is placed and transported, and a pair of left and right lateral upright surfaces T4 rising from both sides of the transport surface T3. It has a U-shape (substantially gutter-like shape), and has a configuration in which the entire or substantially entire area opened upward by the ceiling surface T5 is covered. In the present embodiment, at least two troughs T having the same width dimension (dimension in the left-right direction) are arranged side by side in the height direction. In the following description, a relatively lower trough T is referred to as a lower trough TA, and a relatively upper trough T is referred to as an upper trough TB. In the vibratory conveyor X of the present embodiment, the lower trough TA and the upper trough TB are arranged such that the central axes of the lower trough TA and the upper trough TB in the longitudinal direction (transport direction F) coincide with each other.
下段トラフＴＡ及び上段トラフＴＢは、それぞれ天井面Ｔ５を有するものであるが、図１及び図２では、下段トラフＴＡの天井面Ｔ５と上段トラフＴＢの底面（搬送面Ｔ３）とを共通の実線で示している。すなわち、天井面Ｔ５は、各トラフＴ（下段トラフＴＡ、上段トラフＴＢ）が有する専用カバーによって形成される面であってもよいし、高さ方向に隣接するトラフＴの底面によって形成される面であってもよい。本実施形態では、下段トラフＴＡ及び上段トラフＴＢの各排出口Ｔ２から排出された粉粒体Ｗが、共通の回収部Ｇに回収されて、次の処理工程に供されるように構成している。本実施形態の振動コンベアＸは、上段トラフＴＢの排出口Ｔ２を下段トラフＴＡの排出口Ｔ２よりも搬送方向Ｆ下流側に位置付けて複数のトラフＴ（下段トラフＴＡ、上段トラフＴＢ）を階段状に配置しているため、各トラフＴ（下段トラフＴＡ、上段トラフＴＢ）の排出口Ｔ２から排出する粉粒体Ｗを共通の回収部Ｇに効率良く回収できる。 Although the lower trough TA and the upper trough TB each have a ceiling surface T5, in FIGS. 1 and 2, the ceiling surface T5 of the lower trough TA and the bottom surface (transport surface T3) of the upper trough TB are shared by a solid line. Indicated by. That is, the ceiling surface T5 may be a surface formed by a dedicated cover of each trough T (lower trough TA, upper trough TB), or a surface formed by the bottom surface of the trough T adjacent in the height direction. It may be. In the present embodiment, the granular material W discharged from each of the discharge ports T2 of the lower trough TA and the upper trough TB is collected in the common collecting unit G, and is provided to the next processing step. I have. In the vibrating conveyor X of the present embodiment, the plurality of troughs T (lower trough TA, upper trough TB) are arranged in a step-like manner by positioning the outlet T2 of the upper trough TB on the downstream side in the transport direction F from the outlet T2 of the lower trough TA. , The granular material W discharged from the discharge port T2 of each trough T (lower trough TA, upper trough TB) can be efficiently collected in the common collection unit G.
そして、本実施形態に係る振動コンベアＸは、これら各トラフＴ（下段トラフＴＡ、上段トラフＴＢ）上の粉粒体Ｗの層厚を所定値以下に規制する層厚規制部Ｃを備えている。層厚規制部Ｃは、各トラフＴ上の粉粒体Ｗの層厚が各トラフＴにおける粉粒体Ｗの最大搬送量となる最大層厚と一致または最大層厚よりも低い層厚となるように粉粒体Ｗの層厚を規制するものである。ここで、「各トラフＴにおける粉粒体の最大搬送量となる最大層厚」は、粉粒体の種類、見掛比重（粉粒体の単位体積当たりの質量）、粒子径、湿潤の程度等の諸条件によって求めることができる。 The vibrating conveyor X according to the present embodiment includes a layer thickness regulating portion C that regulates the layer thickness of the granular material W on each of the troughs T (lower trough TA, upper trough TB) to a predetermined value or less. . The layer thickness regulating section C is such that the layer thickness of the granular material W on each trough T is equal to or less than the maximum layer thickness that is the maximum transport amount of the granular material W in each trough T. Thus, the layer thickness of the granular material W is regulated. Here, the “maximum layer thickness that is the maximum transport amount of the granular material in each trough T” is the type of the granular material, the apparent specific gravity (mass per unit volume of the granular material), the particle diameter, and the degree of wetting. It can be obtained under various conditions such as.
本実施形態の層厚規制部Ｃは、図２に示すように、各トラフＴ（下段トラフＴＡ、上段トラフＴＢ）に対応して設けられ且つトラフＴの底面である搬送面Ｔ３との間に粉粒体Ｗの通過を許容する開口部Ｋを形成する仕切り部Ｐを備えている。本実施形態では、仕切り部Ｐとして、トラフＴの天井面Ｔ５から下方に向かって突出する姿勢で配置した仕切り板Ｐ１を適用し、仕切り板Ｐ１の下端Ｐ１１をトラフＴの搬送面Ｔ３から所定高さ位置に位置付けることによって、この仕切り板Ｐ１とトラフＴの搬送面Ｔ３との間に粉粒体Ｗの通過を搬送面Ｔ３から所定高さまで許容する開口部Ｋを形成している。仕切り板Ｐ１の両側縁は、トラフＴの側方起立面Ｔ４に接触している。本実施形態では、このような仕切り板Ｐ１を、各トラフＴの供給口Ｔ１近傍（供給口Ｔ１から数ｃｍ乃至数十ｃｍ離れた位置に配置している。したがって、各トラフＴ上の粉粒体Ｗは、仕切り部Ｐを通過することで、その層厚が仕切り部Ｐによって最大層厚と一致する層厚、または最大層厚よりも低い層厚となる。 As shown in FIG. 2, the layer thickness regulating portion C of the present embodiment is provided corresponding to each trough T (lower trough TA, upper trough TB), and is provided between the trough T and a transport surface T3 which is a bottom surface of the trough T. A partition P is formed to form an opening K that allows the passage of the granular material W. In the present embodiment, as the partition part P, a partition plate P1 arranged in a posture protruding downward from the ceiling surface T5 of the trough T is applied, and the lower end P11 of the partition plate P1 is set at a predetermined height from the transport surface T3 of the trough T. The opening K is formed between the partition plate P1 and the transport surface T3 of the trough T by allowing the granular material W to pass from the transport surface T3 to a predetermined height. Both side edges of the partition plate P1 are in contact with the side upright surface T4 of the trough T. In the present embodiment, such a partition plate P1 is arranged in the vicinity of the supply port T1 of each trough T (at a position separated from the supply port T1 by several cm to several tens cm. When the body W passes through the partition P, the layer thickness of the body W becomes equal to the maximum layer thickness by the partition P, or becomes lower than the maximum layer thickness.
本実施形態の振動コンベアＸは、このような直線状の搬送路であるトラフＴを高さ方向に複数並べて配置し、加振源の振動がトラフＴ（下段トラフＴＡ、上段トラフＴＢ）に伝達されることで、各トラフＴ上の粉粒体Ｗを搬送方向Ｆ下流側に向かって振動搬送させることができる。本実施形態の振動コンベアＸは、各トラフＴの供給口Ｔ１に連続する共通の投入口Ｓと、投入口Ｓの上方に設けられ且つ投入口Ｓに粉粒体Ｗを投入するホッパＨとを備えている。そして、図１に示すように、本実施形態の振動コンベアＸは、ホッパＨから投入口Ｓに供給された粉粒体Ｗを多段状のトラフＴのうち下段トラフＴＡの供給口Ｔ１から下段トラフＴＡ内に優先的に供給し（同図（ｂ）参照）、下段トラフＴＡが仕切り部Ｐによって粉粒体Ｗの層厚を規制する層厚規制状態になることで、投入口Ｓから下段トラフＴＡ内への粉粒体Ｗの供給量を制限し、投入口Ｓ内の粉粒体Ｗが、層厚規制状態にある下段トラフＴＡよりも上方のトラフである上段トラフＴＢの供給口Ｔ１を通じて上段トラフＴＢ内に供給されるように構成している（同図（ｃ）参照）。上段トラフＴＢの供給口Ｔ１から上段トラフＴＢ内に供給された粉粒体Ｗは、下段トラフＴＡ内に供給された粉粒体Ｗと同様に、上段トラフＴＢに設けた仕切り部Ｐによって層厚が規制される。 In the vibration conveyor X of this embodiment, a plurality of troughs T, which are such linear conveyance paths, are arranged side by side in the height direction, and the vibration of the vibration source is transmitted to the troughs T (lower trough TA, upper trough TB). Accordingly, the granular material W on each trough T can be vibrated and conveyed toward the downstream side in the conveying direction F. The vibrating conveyor X of the present embodiment includes a common input port S that is continuous with the supply port T1 of each trough T, and a hopper H that is provided above the input port S and that inputs the granular material W to the input port S. Have. As shown in FIG. 1, the vibrating conveyor X of the present embodiment is configured such that the granular material W supplied from the hopper H to the input port S is supplied from the supply port T1 of the lower trough TA of the multi-stage trough T to the lower trough. The lower trough TA is supplied preferentially into the TA (see FIG. 3B), and the lower trough TA enters a layer thickness regulation state in which the partition portion P regulates the layer thickness of the granular material W. The supply amount of the granular material W into the TA is limited, and the granular material W in the inlet S is supplied through the supply port T1 of the upper trough TB, which is a trough above the lower trough TA in the layer thickness regulated state. It is configured to be supplied into the upper trough TB (see FIG. 3C). The granular material W supplied into the upper trough TB from the supply port T1 of the upper trough TB has the same layer thickness as the granular material W supplied into the lower trough TA by the partitioning portion P provided in the upper trough TB. Is regulated.
このように、本実施形態に係る振動コンベアＸは、複数のトラフＴ（下段トラフＴＡ、上段トラフＴＢ）を高さ方向に段状に設けることで振動コンベアＸ自体の設置面積が増大する事態を回避しつつ、複数段状に設けた各トラフＴ（下段トラフＴＡ、上段トラフＴＢ）における粉粒体Ｗの層厚を、層厚規制部Ｃによって各トラフＴ（下段トラフＴＡ、上段トラフＴＢ）における粉粒体Ｗの最大搬送量となる最大層厚と一致または最大層厚よりも低い層厚となるように構成しているため、トラフＴ上の粉粒体Ｗの層厚が最大層厚を越えた状態で搬送した場合に生じる不具合、つまり、加振源によるトラフＴの振動を粉粒体Ｗが吸収する事象等に起因してトラフＴの振動が粉粒体層の上方まで伝播されず、トラフＴ上の粉粒体層全体をスムーズに搬送できないという不具合の発生を防止・抑制することが可能であり、各トラフＴ（下段トラフＴＡ、上段トラフＴＢ）の単位幅当たりの搬送量増大化を実現することができ、このようなトラフＴ（下段トラフＴＡ、上段トラフＴＢ）を高さ方向に並べて配置することで、振動コンベアＸ全体の単位時間当たりの粉粒体搬送量及び振動コンベアＸの設置面積当たりの粉粒体搬送量を増大することができる。 As described above, the vibration conveyor X according to the present embodiment has a situation in which the installation area of the vibration conveyor X itself is increased by providing a plurality of troughs T (lower troughs TA and upper troughs TB) in steps in the height direction. The layer thickness of the granular material W in each of the troughs T (lower troughs TA and upper troughs TB) provided in a plurality of steps is avoided by the layer thickness regulating section C so that each trough T (lower troughs TA and upper troughs TB) is avoided. In this case, the thickness of the granular material W on the trough T is equal to or smaller than the maximum layer thickness that is the maximum transport amount of the granular material W in the above-described manner. That occurs when the powder W is conveyed in a state exceeding the threshold, that is, the vibration of the trough T is propagated to above the granular material layer due to, for example, an event in which the granular material W absorbs the vibration of the trough T caused by the vibration source. Smooth the entire granular material layer on the trough T It is possible to prevent or suppress the occurrence of a problem that the sheet cannot be sent, and it is possible to increase the transport amount per unit width of each trough T (lower trough TA, upper trough TB). By arranging the lower trough TA and the upper trough TB in the height direction, the amount of the granular material transported per unit time of the entire vibration conveyor X and the amount of the granular material transported per installation area of the vibration conveyor X are increased. can do.
特に、本実施形態に係る振動コンベアＸは、各トラフＴ（下段トラフＴＡ、上段トラフＴＢ）に設けた仕切り部Ｐによって層厚規制部Ｃを構成し、各トラフＴ（下段トラフＴＡ、上段トラフＴＢ）の搬送面Ｔ３と仕切り部Ｐとの間に粉粒体Ｗの通過を許容する開口部Ｋを形成しているため、比較的簡単な構成でありながら、各トラフＴ（下段トラフＴＡ、上段トラフＴＢ）上の粉粒体Ｗのうち仕切り部Ｐよりも搬送方向Ｆ下流側の粉粒体Ｗの層厚をトラフＴの単位幅当たりの搬送量増大化を実現可能な厚さに規制することができる。 In particular, in the vibrating conveyor X according to the present embodiment, the layer thickness regulating portion C is constituted by the partition portions P provided in each trough T (lower trough TA, upper trough TB), and each trough T (lower trough TA, upper trough T). Since the opening K that allows the passage of the granular material W is formed between the transport surface T3 of the transfer tray TB) and the partition P, each trough T (lower trough TA, The layer thickness of the granular material W on the downstream side of the partitioning portion P in the transport direction F of the granular material W on the upper trough TB) is regulated to a thickness that can increase the transport amount per unit width of the trough T. can do.
加えて、本実施形態に係る振動コンベアＸは、各トラフＴ（下段トラフＴＡ、上段トラフＴＢ）の供給口Ｔ１に連続する共通の投入口Ｓに供給された粉粒体Ｗを先ず下段トラフＴＡの供給口Ｔ１から下段トラフＴＡ内に供給し、下段トラフＴＡが仕切り部Ｐによって粉粒体Ｗの層厚を規制する層厚規制状態になった後に、層厚規制状態にあるトラフＴよりも相対的に上側のトラフＴである上段トラフＴＢの供給口Ｔ１を通じて上段トラフＴＢ内に粉粒体Ｗが供給されるように構成しているため、複雑な案内経路を設けずに粉粒体Ｗを各トラフＴ（下段トラフＴＡ、上段トラフＴＢ）に効率良く供給することができる。 In addition, the vibrating conveyor X according to the present embodiment first converts the granular material W supplied to the common inlet S continuous to the supply port T1 of each trough T (lower trough TA, upper trough TB) into the lower trough TA. Is supplied from the supply port T1 into the lower trough TA, and after the lower trough TA enters the layer thickness regulation state in which the partition portion P regulates the layer thickness of the granular material W, the trough T is in a layer thickness regulation state. Since the granular material W is configured to be supplied into the upper trough TB through the supply port T1 of the upper trough TB which is a relatively upper trough T, the granular material W is provided without providing a complicated guide path. Can be efficiently supplied to each trough T (lower trough TA, upper trough TB).
なお、本発明は上述した実施形態に限定されるものではない。例えば、本発明における層厚規制部として、図３に示すように、各トラフＴ（下段トラフＴＡ、上段トラフＴＢ）の供給口Ｔ１に連続する共通の投入口Ｓに設けられ且つ投入口Ｓに投入された粉粒体Ｗの供給先のトラフＴを選択して各トラフＴへの粉粒体Ｗの供給量を調整可能な供給量調整部Ｒと、各トラフＴ上の粉粒体Ｗのうち仕切り部Ｐよりも搬送方向Ｆ下流側の粉粒体Ｗの層厚を判定する判定部Ｊとを備え、判定部Ｊによる判定結果に基づいて供給量調整部Ｒの作動を制御するものを適用することができる。供給量調整部Ｒは、同図に示すように、例えばプレート体を用いて構成することができ、投入口Ｓに投入された粉粒体を下段トラフＴＡに供給可能な第１姿勢（実線で示す姿勢Ｒ１）と、投入口Ｓに投入された粉粒体を上段トラフＴＢに供給可能な第２姿勢（一点鎖線で示す姿勢Ｒ２）との間で姿勢変更可能なものである。 Note that the present invention is not limited to the embodiment described above. For example, as shown in FIG. 3, the layer thickness regulating section in the present invention is provided at a common input port S that is continuous with the supply port T1 of each trough T (lower trough TA, upper trough TB), and is provided at the input port S. A supply amount adjustment unit R which can select a trough T to which the supplied granular material W is supplied and adjust the supply amount of the granular material W to each trough T; A determination section J for determining the layer thickness of the granular material W downstream of the partition section P in the transport direction F, and controlling the operation of the supply amount adjustment section R based on the determination result by the determination section J. Can be applied. As shown in the figure, the supply amount adjustment unit R can be configured using, for example, a plate body, and can be in the first position (in solid lines) capable of supplying the granular material input to the input port S to the lower trough TA. The posture can be changed between a posture R1 shown in FIG. 4 and a second posture (posture R2 shown by a dashed line) in which the granular material fed into the inlet S can be supplied to the upper trough TB.
判定部Ｊは、センサＪ１によって検知した粉粒体Ｗの層厚情報に基づいて粉粒体Ｗの層厚を判定するものである。したがって、本実施形態における「判定部Ｊによる判定結果」は、センサＪ１によって検知した粉粒体Ｗの層厚情報に基づく判定結果である。なお、判定部Ｊが、カメラ等の撮像手段によって記録した粉粒体Ｗの層厚に関する画像情報に基づいて粉粒体Ｗの層厚を判定するものであってもよい。 The determination unit J determines the layer thickness of the granular material W based on the layer thickness information of the granular material W detected by the sensor J1. Therefore, the “judgment result by the judgment unit J” in the present embodiment is a judgment result based on the layer thickness information of the granular material W detected by the sensor J1. Note that the determination unit J may determine the layer thickness of the granular material W based on image information on the layer thickness of the granular material W recorded by an imaging unit such as a camera.
このような構成であれば、各トラフＴの高さ位置に関係無く、各トラフＴの搬送状態を考慮しながら、層厚規制状態になっていないトラフＴに粉粒体Ｗを優先的に供給するように供給量調整部Ｒを第１姿勢Ｒ１と第２姿勢Ｒ２の間で切り替えることで、各トラフＴにおける層厚規制状態の精度を高めることができ、振動コンベアＸ全体による粉粒体Ｗの搬送効率を向上させて粉粒体Ｗの搬送量増大化を実現できる。また、このような構成であれば、層厚規制状態にあるべきトラフＴが、最大層厚を越えて粉粒体Ｗを搬送している事象を判定部Ｊによる判定結果に基づいて特定することもでき、最大層厚を越えた層厚で粉粒体Ｗを搬送しているトラフＴへの粉粒体Ｗの供給を一時停止することによって粉粒体Ｗの層厚を調整することもできる。 With such a configuration, regardless of the height position of each trough T, the granular material W is preferentially supplied to the trough T that is not in the layer thickness regulation state while considering the transport state of each trough T. By switching the supply amount adjusting unit R between the first posture R1 and the second posture R2 so that the accuracy of the layer thickness regulation state in each trough T can be increased, the granular material W by the entire vibrating conveyor X can be improved. , The transfer amount of the granular material W can be increased. Further, with such a configuration, the event that the trough T, which should be in the layer thickness regulation state, is transporting the granular material W exceeding the maximum layer thickness can be specified based on the determination result by the determination unit J. It is also possible to adjust the layer thickness of the granular material W by temporarily stopping the supply of the granular material W to the trough T conveying the granular material W with a layer thickness exceeding the maximum layer thickness. .
本発明では、層厚規制部Ｃの仕切り部Ｐとして、トラフＴの搬送面Ｔ３から所定高さ位置に下端Ｐ１１を位置付けた仕切り板Ｐ１を適用することで、簡単な構成で仕切り部Ｐを形成することができるが、仕切り板以外のもの（プレート体以外のもの）を用いて仕切り部を形成してもよい。例えば直方体状のブロック体を用いて仕切り部を形成したり、側面視略三角形状のパーツ（三角体）を用いて仕切り部を形成することができる。後者の態様を採用する場合には、側面視三角体を逆三角形状の姿勢でトラフ内に設け、三角体の３つの角のうち下方に突出する向きにある角を頂点として、この頂点（最下端）と搬送面との間に粉粒体の通過を許容する開口部を形成すればよい。 In the present invention, the partition P is formed with a simple structure by applying the partition P1 having the lower end P11 positioned at a predetermined height from the transport surface T3 of the trough T as the partition P of the layer thickness regulating section C. However, the partition part may be formed by using something other than the partition plate (other than the plate body). For example, the partition part can be formed using a rectangular parallelepiped block body, or the partition part can be formed using a part (triangular body) having a substantially triangular shape in side view. In the case of adopting the latter mode, a triangular body in a side view is provided in a trough in an inverted triangular posture, and among the three corners of the triangular body, a corner that is protruding downward is defined as a vertex. An opening may be formed between the lower end) and the conveying surface to allow the passage of the granular material.
本発明における「粉粒体の通過を許容する開口部」の形状は、搬送方向に沿って開口部に正対した場合に、四角形または五角形、あるいは三角形等の多角形状であってもよいし、一部に部分円弧状を有する形状（トンネル形状）であってもよい。さらにはまた、プレート体またはブロック体の一部に下方に開口する切欠を形成し、この切欠を「粉粒体の通過を許容する開口部」に設定した構成を採用することも可能である。 In the present invention, the shape of the `` opening permitting passage of the granular material '' may be a quadrangle or a pentagon, or a polygon such as a triangle when directly facing the opening along the transport direction, The shape (tunnel shape) partially having a partial arc shape may be used. Furthermore, it is also possible to adopt a configuration in which a notch that opens downward is formed in a part of the plate body or the block body, and the notch is set as an “opening that allows the passage of the granular material”.
また、供給量調整部を備えた層厚規制部を適用する場合には、各トラフに仕切り部を配置せずに、判定部（例えばセンサ、カメラ等）による判定結果に基づいて供給量調整部の作動を制御する構成（図３に示す振動コンベアＸのうち仕切り部Ｐを省いた構成）にすることもできる。 Further, when a layer thickness regulating unit having a supply amount adjusting unit is applied, a partitioning unit is not disposed in each trough, and a supply amount adjusting unit is provided based on a determination result by a determining unit (for example, a sensor, a camera, or the like). (A configuration in which the partition P is omitted from the vibration conveyor X shown in FIG. 3).
さらに、本発明に係る振動コンベアＸは、図４に示すように、トラフＴの段数に応じた複数の排出経路Ｈ１を有するホッパＨを備えたものであってもよい。この場合、振動コンベアＸが、排出経路Ｈ１から各トラフＴ（下段トラフＴＡ、上段トラフＴＢ）の供給口Ｔ１に供給する粉粒体の量を調整することによって各トラフＴ（下段トラフＴＡ、上段トラフＴＢ）上の粉粒体の層厚を規制する層厚規制部Ｃを備えた構成であれば、上述の実施形態に係る構成と同様に、各トラフＴ（下段トラフＴＡ、上段トラフＴＢ）上の粉粒体Ｗの層厚を規制することができ、各トラフＴの単位幅当たりの搬送量増大化、ひいては、振動コンベアＸ全体の単位時間当たりの粉粒体搬送量及び振動コンベアＸの設置面積当たりの粉粒体搬送量を増大することができる。 Further, as shown in FIG. 4, the vibrating conveyor X according to the present invention may include a hopper H having a plurality of discharge paths H1 corresponding to the number of troughs T. In this case, the vibrating conveyor X adjusts the amount of the granular material supplied from the discharge path H1 to the supply port T1 of each trough T (lower trough TA, upper trough TB), thereby adjusting each trough T (lower trough TA, upper trough T). As long as the configuration includes the layer thickness regulating portion C that regulates the layer thickness of the granular material on the trough TB), each trough T (lower trough TA, upper trough TB) as in the configuration according to the above-described embodiment. The layer thickness of the upper granular material W can be regulated, and the transport amount per unit width of each trough T can be increased. As a result, the granular material transport amount per unit time of the entire vibration conveyor X and the vibration conveyor X can be controlled. It is possible to increase the transport amount of the granular material per installation area.
図４に示す構成において、例えば、複数の排出経路Ｈ１のうち粉粒体Ｗを排出する排出経路Ｈ１を選択して各トラフＴへの粉粒体Ｗの供給量を調整可能な供給量調整部と、各トラフＴ上の粉粒体Ｗの層厚を判定する判定部とを備え、判定部による判定結果に基づいて供給量調整部の作動を制御するものを適用することが可能である。「判定部による判定結果」の具体例としては、センサによって検知した粉粒体の層厚情報に基づく判定結果、あるいは撮像手段によって記録した画像情報に基づく判定結果を挙げることができる。また、本発明では、供給量調整部を排出経路内に個別に設けた構成、あるいは、ホッパのうち各排出経路の排出方向上流端よりも上流側の所定位置に共通の供給量調整部を設けた構成を採用できる。図４に示す構成において、図１等に示す仕切り部を各トラフ内に設けても構わない。 In the configuration illustrated in FIG. 4, for example, a supply amount adjustment unit that can select the discharge path H1 that discharges the granular material W from the plurality of discharge paths H1 and adjusts the supply amount of the granular material W to each trough T. And a determination unit that determines the layer thickness of the granular material W on each trough T, and that controls the operation of the supply amount adjustment unit based on the determination result by the determination unit can be applied. Specific examples of the “judgment result by the judging unit” include a judgment result based on the layer thickness information of the granular material detected by the sensor or a judgment result based on the image information recorded by the imaging unit. Also, in the present invention, a configuration in which the supply amount adjustment unit is individually provided in the discharge path, or a common supply amount adjustment unit is provided at a predetermined position on the hopper upstream of the discharge direction upstream end of each discharge path. Can be adopted. In the configuration shown in FIG. 4, the partition shown in FIG. 1 and the like may be provided in each trough.
本発明の振動コンベアが多段状に備えるトラフの数は、２つに限らず、３以上であってもよい。 The number of troughs provided in the multi-stage vibration conveyor of the present invention is not limited to two, and may be three or more.
また、トラフを加振する具体的な構成及び加振方法は特に限定されず、トラフを支持する構成も特定の構成に限定されず、適宜の構成を採用することができる。 Further, the specific configuration and method of exciting the trough are not particularly limited, and the configuration for supporting the trough is not limited to a specific configuration, and an appropriate configuration can be adopted.
本発明の振動コンベアで搬送可能な搬送対象物である粉粒体は、食品に限定されない。 The powder or granules that can be conveyed by the vibration conveyor of the present invention are not limited to foods.
その他、回動機構等、各部の具体的構成についても上記実施形態に限られるものではなく、本発明の趣旨を逸脱しない範囲で種々変形が可能である。 In addition, the specific configuration of each part such as the rotation mechanism is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
Ｃ…層厚規制部
Ｈ…ホッパ
Ｈ１…排出経路
Ｊ…判定部
Ｋ…開口部
Ｔ（ＴＡ、ＴＢ）…トラフ（下段トラフ、上段トラフ）
Ｐ…仕切り部
Ｐ１…仕切り板
Ｒ…供給量調整部
Ｓ…投入口
Ｘ…振動コンベア
C: layer thickness regulating section H: hopper H1: discharge path J: determining section K: opening T (TA, TB): trough (lower trough, upper trough)
P ... Partition part P1 ... Partition plate R ... Supply amount adjustment part S ... Input port X ... Vibration conveyor
Claims (6)
前記トラフを複数段状に設け、これら各トラフ上の粉粒体の層厚を所定値以下に規制する層厚規制部を備え、前記層厚規制部によって前記各トラフ上の粉粒体の層厚が前記各トラフにおける粉粒体の最大搬送量となる最大層厚と一致または前記最大層厚よりも低い層厚となるように構成していることを特徴とする振動コンベア。 A vibrating conveyor that conveys the granular material that is the object to be conveyed on the trough in a predetermined conveying direction by vibrating the trough with vibration from a vibration source,
The trough is provided in a plurality of steps, and a layer thickness regulating section is provided for regulating the layer thickness of the granular material on each of the troughs to a predetermined value or less, and the layer of the granular material on each of the troughs is provided by the layer thickness regulating section. A vibrating conveyor, wherein the thickness is configured to be equal to or smaller than the maximum layer thickness that is the maximum transport amount of the granular material in each of the troughs.
前記各トラフ上の粉粒体のうち前記仕切り部よりも搬送方向下流側の粉粒体の層厚が前記最大層厚と一致または前記最大層厚よりも低い層厚となるように構成している請求項１に記載の振動コンベア。 The layer thickness regulating portion includes a partition portion provided corresponding to each of the troughs and forming an opening between the transport surface of the trough and a predetermined height from the transport surface to allow passage of the granular material. And
The layer thickness of the granular material on the trough in the transport direction downstream of the partition portion among the granular materials on each of the troughs is configured to be equal to the maximum layer thickness or to be a layer thickness lower than the maximum layer thickness. The vibration conveyor according to claim 1.
前記各トラフの供給口に連続する共通の投入口に設けられ且つ当該投入口に投入された粉粒体の供給先の前記トラフを選択して前記各トラフへの粉粒体の供給量を調整可能な供給量調整部と、
前記各トラフ上の粉粒体のうち前記仕切り部よりも搬送方向下流側の粉粒体の層厚を判定する判定部とを備え、
前記判定部による判定結果に基づいて前記供給量調整部の作動を制御するものである請求項２又は３の何れかに記載の振動コンベア。 The layer thickness regulating section,
The trough, which is provided at a common input port that is continuous with the supply port of each of the troughs and is a supply destination of the granular material supplied to the input port, is selected, and the supply amount of the granular material to each of the troughs is adjusted. A possible supply adjustment unit,
A determination unit that determines the layer thickness of the granular material on the transport direction downstream side of the partition unit among the granular materials on each of the troughs,
The vibration conveyor according to claim 2, wherein the operation of the supply amount adjusting unit is controlled based on a result of the determination by the determining unit.
前記層厚規制部は、前記排出経路から前記各トラフの供給口に供給する粉粒体の量を調整することによって前記各トラフ上の粉粒体の層厚を規制するものである請求項１に記載の振動コンベア。 A hopper having a plurality of discharge paths according to the number of stages of the trough,
The said thickness control part regulates the layer thickness of the granular material on each said trough by adjusting the quantity of the granular material supplied from the said discharge path to the supply port of each said trough. The vibration conveyor described in the above.
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