JP2008195524A - Vibration exciter and vibration type conveying device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vibration type conveying device capable of efficiently using vibration energy of an excitation body for conveying and constituting it compact. <P>SOLUTION: The vibration exciter is provided with a basic base 3; a vibration base 5 arranged above the basic base; and an excitation mechanism 4 interposed between the basic base and the vibration base and vibrating the vibration base. The excitation mechanism has an excitation body 6 connected to the basic base, extending to a side than a connection point relative to the basic base and having a deflected/deformed extension shape; and an elastic body 8 connected to a distal end of the excitation body, extending in an opposite direction to the excitation body in the form that a clearance is provided at one side along a deflection direction of the excitation body and connected to the vibration base. It is constituted in a U shape operated making a connection portion of the excitation body and the elastic body as a free end as a whole, and the deflection direction of the excitation body and a vibration surface of the elastic body are set in a direction inclined relative to a horizontal plane. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は加振装置及び振動式搬送装置に係り、特に、微細部品を搬送する場合に好適な搬送装置及びこれに用いる加振装置の構造に関する。   The present invention relates to a vibration device and a vibration type conveyance device, and more particularly, to a conveyance device suitable for conveying fine parts and a structure of a vibration device used therefor.

一般に、電子部品等を搬送するために種々の振動式搬送装置が使用されている。この種の振動式搬送装置においては、近年、高い供給速度と供給精度が要求され、高速化及び高性能化が急務とされている。一般的には、部品の搬送姿勢を完全に揃えた状態で高速に搬送することが要求されており、そのためには部品を振動により効率的かつ安定に搬送する必要がある。このような効率的で安定性の高い搬送態様を実現するには、部品搬送路を形成してなる振動台若しくは搬送体の振動方向のぶれ（ばらつき）を低減するとともに振動方向を高精度に設定する必要がある。   In general, various vibrating transfer devices are used to transfer electronic components and the like. In recent years, this type of vibratory transfer apparatus is required to have a high supply speed and supply accuracy, and there is an urgent need to increase the speed and performance. In general, it is required to convey parts at a high speed with their conveying postures perfectly aligned. To that end, it is necessary to convey parts efficiently and stably by vibration. In order to realize such an efficient and highly stable transport mode, vibration (blurring) in the vibration direction of the vibration table or transport body that forms the component transport path is reduced and the vibration direction is set with high accuracy. There is a need to.

従来の振動式搬送装置としては、螺旋状の部品搬送路を備えたボウル型搬送装置等の回転型搬送装置と、直線状の部品搬送路を備えたリニア型搬送装置とが知られている。前者の回転型搬送装置（例えば、以下の特許文献１又は２参照）では、圧電素子を弾性板に装着してなる撓み変形可能な加振体と、この加振体に接続された増幅板バネとを接続してなる加振機構を、加振体を基台側に、増幅板バネを振動台側に接続してなる態様で基台と振動台との間に介挿し、複数の加振機構を垂直軸線の周りに同じ姿勢で設置することで旋回振動を生成するように構成する場合が多い。また、後者のリニア型搬送装置（例えば、以下の特許文献３乃至６）でも、上記と同様の加振機構を搬送方向に一対設けることで搬送方向の往復振動を生成するように構成する場合が多い。   As a conventional vibration type conveying apparatus, a rotary type conveying apparatus such as a bowl type conveying apparatus provided with a spiral part conveying path and a linear type conveying apparatus provided with a linear part conveying path are known. In the former rotary type conveying apparatus (for example, see Patent Document 1 or 2 below), a flexurally deformable vibration body formed by mounting a piezoelectric element on an elastic plate, and an amplification leaf spring connected to the vibration body Are connected between the base and the vibration table in such a manner that the vibration body is connected to the base side and the amplifying leaf spring is connected to the vibration table side. In many cases, the mechanism is configured to generate a swing vibration by installing the mechanism around the vertical axis in the same posture. Also, the latter linear type conveying apparatus (for example, Patent Documents 3 to 6 below) may be configured to generate reciprocal vibration in the conveying direction by providing a pair of vibration mechanisms similar to the above in the conveying direction. Many.

上記のいずれのタイプの搬送装置であっても、上記加振機構が鉛直線に対して搬送方向とは逆向きに斜めに傾斜する方向に延在するように設置され、その傾斜角で振動台の振動方向が搬送方向に見て斜め上方に向くようにすることで、部品が搬送方向に搬送されていくように構成される。したがって、加振機構の傾斜角は部品の搬送態様を決定する重要なファクターとなっている。
特公昭５−１５６０７号公報 特開平２−８１０９号公報 実開平２−４９９０９号公報 特開平３−５１２１０号公報 実開平４−１５３１１９号公報 特開平７−２５７７２４号公報 特開平１−２０３１１２号公報 特開平９−１１０１３３号公報 Regardless of the type of transfer device, the vibrating mechanism is installed so as to extend obliquely in the direction opposite to the transfer direction with respect to the vertical line. The component is conveyed in the conveyance direction by causing the vibration direction of the component to be obliquely upward as viewed in the conveyance direction. Therefore, the inclination angle of the vibration exciting mechanism is an important factor that determines the part conveyance mode.
Japanese Patent Publication No. 5-15607 Japanese Patent Laid-Open No. 2-8109 Japanese Utility Model Publication No. 2-49909 JP-A-3-51210 Japanese Utility Model Publication No. 4-153119 Japanese Unexamined Patent Publication No. 7-257724 JP-A-1-203112 Japanese Patent Laid-Open No. 9-110133

しかしながら、前述の多くの装置においては、圧電素子を含む加振体の振動を増幅板バネで増幅して振動台に伝達するとともに、加振機構の傾斜角によって振動方向が搬送側の斜め上方へ向かうように構成することにより部品を搬送方向に移動可能としているため、加振機構の傾斜角が適切でないと、部品が搬送路上で滑って移動しにくくなったり、部品のバタつき（上下方向への飛び跳ね）が大きくなりすぎたりすることで、搬送効率が低下する。特に、上記のように加振体と増幅板バネが直列に接続された構成では、基台と振動台との間に構成される加振機構が長くなるので、ねじれ振動等が発生しやすく、振動方向のばらつきが生じやすいために効率的な搬送を行うことができない場合がある。   However, in many of the above-described devices, the vibration of the vibration exciter including the piezoelectric element is amplified by the amplifying leaf spring and transmitted to the vibration table, and the vibration direction is inclined obliquely upward on the conveyance side by the inclination angle of the vibration excitation mechanism. Since the parts can be moved in the transport direction by configuring the parts to face, if the tilting angle of the excitation mechanism is not appropriate, the parts will not slide easily on the transport path or the parts may flutter (in the vertical direction) If the amount of jumping is too large, the conveyance efficiency is lowered. In particular, in the configuration in which the vibration body and the amplification leaf spring are connected in series as described above, the vibration mechanism configured between the base and the vibration table becomes long, so that torsional vibration or the like is likely to occur. In some cases, variation in the vibration direction is likely to occur, so that efficient conveyance cannot be performed.

また、上記のような加振機構では、加振体及び増幅板バネがその延在方向に傾斜して取り付けられていることから、加振体の撓み変形及び増幅板バネの弾性変形により振動台が円弧状に振動するため、振動加振機構の傾斜角が同じであっても振動台の重量や加振機構のばね定数、搬送物の重量等によって搬送物に対する実質的な上記振動方向の傾斜角（以下、単に「振動傾斜角」という。）が変動しやすいため、当該振動方向を正確に設定しにくく、やはり効率的な搬送を行うことが難しいという問題点がある。このような問題点は、加振体と増幅板バネとを屈折させて連結してなる加振機構を備えた上記特許文献７に開示された構造でも同様である。   Further, in the vibration mechanism as described above, since the vibration body and the amplifying plate spring are attached to be inclined in the extending direction, the vibration table is caused by the bending deformation of the vibration body and the elastic deformation of the amplification plate spring. Therefore, even if the inclination angle of the vibration excitation mechanism is the same, the substantial inclination of the vibration direction with respect to the conveyance object depends on the weight of the vibration table, the spring constant of the excitation mechanism, the weight of the conveyance object, etc. Since the angle (hereinafter simply referred to as “vibration inclination angle”) is likely to fluctuate, there is a problem in that it is difficult to set the vibration direction accurately and it is difficult to perform efficient conveyance. Such a problem is also the same in the structure disclosed in Patent Document 7 provided with a vibration mechanism in which a vibration body and an amplification leaf spring are refracted and connected.

一方、上記特許文献８に示すように加振体や増幅バネ板を水平に延在するように構成した加振装置が知られており、このような加振装置であれば、増幅バネ板自体は円弧状に振動するものの、増幅バネ板の幅方向に傾斜角を付けることで振動台を斜め上方向に比較的正確に振動させることができる。しかしながら、このような構造は、実際には加振機構を上述のように板状の加振体（圧電素子）の先端にさらに増幅バネ板を接続した構造としなければ十分な振幅を得ることができない。そして、このように加振体と増幅バネ板を直列に接続してなる加振機構を構成すると水平方向の距離が長くなるため、振動台の重量が増幅バネ板の先端部に加わることで加振機構が幅方向にねじれ変形し、やはり設定された傾斜角で振動台を振動させることができなくなるという問題点がある。   On the other hand, as shown in the above-mentioned Patent Document 8, there is known a vibration exciter configured such that a vibration exciter and an amplification spring plate extend horizontally. With such a vibration excursion device, the amplification spring plate itself is known. Although it vibrates in a circular arc shape, the vibration table can be vibrated relatively accurately in an obliquely upward direction by providing an inclination angle in the width direction of the amplification spring plate. However, such a structure can actually obtain sufficient amplitude unless the excitation mechanism is a structure in which an amplifying spring plate is further connected to the tip of a plate-like excitation body (piezoelectric element) as described above. Can not. In this way, if a vibration mechanism is formed by connecting a vibration body and an amplification spring plate in series, the distance in the horizontal direction becomes long. Therefore, the weight of the vibration table is added to the tip of the amplification spring plate. There is a problem that the vibration mechanism is twisted and deformed in the width direction and the vibration table cannot be vibrated at a set inclination angle.

そこで、本発明は上記問題点を解決するものであり、その課題は、加振体の振動方向を正確に振動台へ伝達することで効率的に搬送を行うことができるとともに、加振機構をコンパクトに構成することができる振動式搬送装置を提供することにある。   Therefore, the present invention solves the above-described problems, and the problem is that the vibration direction of the vibration exciter can be accurately transferred to the vibration table so that it can be efficiently conveyed, and the vibration excitation mechanism can be An object of the present invention is to provide a vibration transfer device that can be configured compactly.

斯かる実情に鑑み、基台と、該基台の上方に配置される振動台と、前記基台と前記振動台との間に介在して前記振動台を振動させる加振機構と、を具備する加振装置において、前記加振機構は、前記基台に接続され、前記基台に対する接続点より側方に延在し、その延在形状が撓み変形する加振体と、該加振体の先端部に対して接続されるとともに、前記加振体の撓み方向に沿った一方の側に間隔を設けた態様で前記加振体とは逆方向へ延在して前記振動台に接続される弾性体と、を有し、全体として前記加振体と前記弾性体の接続部位を自由端として動作するＵ字状に構成され、前記加振体の撓み方向及び前記弾性体の振動面が水平面に対して傾斜した方向に設定されていることを特徴とする。   In view of such circumstances, a base, a vibration table disposed above the base, and an excitation mechanism that vibrates the vibration table interposed between the base and the vibration table are provided. In the vibration device, the vibration mechanism is connected to the base, extends laterally from a connection point with respect to the base, and a vibration body whose extension shape is bent and deformed, and the vibration body And is connected to the shaking table extending in the opposite direction to the vibrating body in a mode in which an interval is provided on one side along the bending direction of the vibrating body. And is configured in a U-shape that operates with the connecting portion of the vibrating body and the elastic body as a free end as a whole, and the bending direction of the vibrating body and the vibration surface of the elastic body are It is set in the direction inclined with respect to the horizontal plane.

この発明によれば、加振体を基台に対する接続点より側方に延在させ、この加振体の先端部を弾性体に接続し、この弾性体を加振体とは逆方向に延在させて振動台に接続させることで全体として加振体と弾性体の接続部位を自由端として動作するＵ字状（コ字状を含む）に構成されたことにより、加振機構のねじれ変形に対する剛性が向上するとともに、弾性体の先端である振動台に対する接続点が円弧状に振動するものの、振動台の振動傾斜角自体は水平面に対して傾斜した加振体の撓み方向及び弾性体の振動面に沿った角度となるために上記の弾性体の振動軌跡の円弧形状そのものに影響されないから、各種条件に起因する当該振動傾斜角のばらつきと変動を低減できる。また、加振機構が全体としてＵ字状に構成されることで加振機構をコンパクトに構成することもできる。   According to the present invention, the vibrating body is extended laterally from the connection point with respect to the base, the tip of the vibrating body is connected to the elastic body, and the elastic body is extended in the opposite direction to the vibrating body. The torsional deformation of the vibration mechanism is configured by the U-shape (including the U-shape) that operates with the connection part of the vibration body and elastic body as a free end as a whole by being connected to the shaking table. Although the connection point to the vibration table, which is the tip of the elastic body, vibrates in a circular arc shape, the vibration inclination angle of the vibration table itself is determined by the bending direction of the vibrating body inclined with respect to the horizontal plane and the elastic body. Since the angle is along the vibration surface, it is not affected by the arc shape of the vibration locus of the elastic body, so that variations and fluctuations in the vibration inclination angle due to various conditions can be reduced. In addition, since the vibration mechanism is configured in a U shape as a whole, the vibration mechanism can be configured in a compact manner.

本発明において、前記加振体と前記弾性体は前記接続部位で連結スペーサを介して接続され、該連結スペーサの前記加振体に対する連結点よりも前記弾性体に対する連結点が前記弾性体の前記振動台に対する接続点側に配置されることが好ましい。これによれば、弾性体の振動の節が基端寄りに形成されるので、弾性体の延在方向の長さをそれほど増大させなくても先端において十分な振幅の増大を図ることができ、また、弾性体の延在方向の長さの増大を抑制できるので、振動傾斜角のばらつきや変動をさらに低減することができる。   In the present invention, the vibrating body and the elastic body are connected to each other through a connecting spacer at the connecting portion, and the connecting point of the connecting spacer to the elastic body is more than the connecting point of the connecting spacer to the vibrating body. It is preferable to be arranged on the connection point side with respect to the shaking table. According to this, since the vibration node of the elastic body is formed closer to the base end, it is possible to increase the amplitude sufficiently at the distal end without increasing the length of the elastic body in the extending direction, In addition, since an increase in the length of the elastic body in the extending direction can be suppressed, variations and fluctuations in the vibration inclination angle can be further reduced.

この場合において、前記弾性体の前記振動台に対する接続点は、前記加振体の前記基台に対する接続点より前記接続部位とは反対側に配置されることが好ましい。これによれば、弾性体の延在方向の長さを増大させることができるので、弾性体の振幅増幅作用をより有効に発揮することができる。   In this case, it is preferable that the connection point of the elastic body with respect to the shaking table is disposed on the opposite side of the connection portion with respect to the connection point of the vibrating body with respect to the base. According to this, since the length of the elastic body in the extending direction can be increased, the amplitude amplification action of the elastic body can be more effectively exhibited.

本発明において、複数の前記加振機構が垂直軸線周りに配置され、該複数の加振機構の前記弾性体が取り付けられてなる前記振動台が前記垂直軸線周りに往復振動するように構成されていることが好ましい。これによれば、複数の加振機構によって垂直軸線周りの接線方向に振動台が加振されるので、振動台を安定に支持できるととともに効率的に振動させることができる。   In the present invention, the plurality of vibration mechanisms are arranged around a vertical axis, and the vibration table to which the elastic bodies of the plurality of vibration mechanisms are attached is configured to reciprocate around the vertical axis. Preferably it is. According to this, since the vibration table is vibrated in the tangential direction around the vertical axis by the plurality of vibration mechanisms, the vibration table can be stably supported and can be vibrated efficiently.

本発明において、前記基台は、前記加振体に対する接続点が設けられた前記振動台側に突出する基台凸部と、前記振動台から離間する基台凹部とを有し、前記振動台は、前記弾性体に対する接続点が設けられ、前記基台凹部に臨み前記基台側に突出する振動台凸部と、前記基台凸部を収容する振動台凹部とを有することが好ましい。これによれば、下方に配置される基台と上方に配置される振動台とが相互に嵌合する態様で構成されることで、基台及び振動台の剛性をそれぞれ高めることができるとともに、加振機構をさらにコンパクトに収容することが可能になり、全体として加振装置の高さを低減することができる。   In this invention, the said base has a base convex part which protrudes in the said vibration base side provided with the connection point with respect to the said vibrating body, and a base concave part spaced apart from the said vibration base, The said vibration base It is preferable that a connection point for the elastic body is provided, and there is a vibration table convex portion that faces the base concave portion and protrudes toward the base, and a vibration table concave portion that accommodates the base convex portion. According to this, it is possible to increase the rigidity of the base and the shaking table by being configured in a manner in which the base placed below and the shaking table placed above are fitted to each other, The vibration mechanism can be accommodated in a more compact manner, and the height of the vibration device can be reduced as a whole.

次に、本発明の振動式搬送装置は、上記のいずれかに記載の加振装置と、該加振装置の前記振動台に固定される搬送路とを具備することを特徴とする。搬送物を搬送するための搬送路が振動台に固定されることで、搬送物は上記加振装置によってもたらされた振動で搬送される。   Next, a vibration type conveying apparatus according to the present invention includes any of the above-described vibration devices and a conveyance path fixed to the vibration table of the vibration device. By fixing the transport path for transporting the transported object to the vibration table, the transported object is transported by the vibration provided by the vibration exciter.

以下、本発明の実施の形態を図示例と共に説明する。図１は回転型振動式搬送装置に用いられる第１実施形態の加振装置（回転振動機）の概略正面図、図２は同装置の概略縦断面図（後述する図４のＡ−Ａ線に沿った断面を示す縦断面図）である。一般に、ボウルフィーダ等の回転型振動式搬送装置は、公知のように、図示の加振装置（回転振動機）の上部（振動台）に螺旋状や円周状の搬送路を設けた搬送体（図示せず）を取付けることで形成される。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic front view of a vibrating device (rotary vibrator) of a first embodiment used in a rotary vibration type conveying device, and FIG. 2 is a schematic longitudinal sectional view of the device (a line AA in FIG. 4 described later). FIG. In general, a rotary vibratory conveying device such as a bowl feeder is a known carrier having a helical or circumferential conveying path provided on the upper portion (vibrating table) of the illustrated vibrating device (rotating vibrator). It is formed by attaching (not shown).

本実施形態は、取付ベース１と、この取付ベース１上に防振ゴム、防振バネ等の弾性部材１ａを介して取り付けられた支持台２と、この支持台２に搭載された基台３とを有する。図２に示すように、支持台２は基台３の下部３ｄを垂直方向に移動可能に収容する収容穴２ａを有するとともに、支持台２の上部外面に環状の支持枠２ｂが螺合してなり、支持枠２ｂが基台３を環状に支持する構造となっている。したがって、基台３は支持台２に対して昇降可能に構成されている。   In the present embodiment, a mounting base 1, a support base 2 mounted on the mounting base 1 via an elastic member 1 a such as a vibration-proof rubber and a vibration-proof spring, and a base 3 mounted on the support base 2. And have. As shown in FIG. 2, the support base 2 has an accommodation hole 2 a for accommodating the lower part 3 d of the base 3 movably in the vertical direction, and an annular support frame 2 b is screwed to the upper outer surface of the support base 2. Thus, the support frame 2b is configured to support the base 3 in an annular shape. Therefore, the base 3 is configured to be movable up and down with respect to the support base 2.

基台３の上部中央には上方に開いた中央凹部３ａが設けられるとともに、上部外周には、中央凹部３ａに連通し、上方（及び外側）に開いた外周凹部３ｂ（上記基台凹部に相当する。）及び上方に突出した外周凸部３ｃ（上記基台凸部に相当する。）が設けられている。この外周凹部３ｂ及び外周凸部３ｃは、垂直軸線Ｘ周りに凹部と凸部が交互に設けられるように等角度間隔（図示例では１２０度間隔）で設定された複数（図示例では３）個所にそれぞれ形成されている。   A central recess 3a that opens upward is provided in the upper center of the base 3, and an outer peripheral recess 3b that communicates with the central recess 3a and opens upward (and outside) on the outer periphery of the base 3 (corresponding to the base recess described above) And an outer peripheral convex portion 3c (corresponding to the base convex portion) protruding upward. The outer circumferential concave portion 3b and the outer circumferential convex portion 3c have a plurality of (three in the illustrated example) locations set at equiangular intervals (120 degrees in the illustrated example) so that the concave portion and the convex portion are alternately provided around the vertical axis X. Are formed respectively.

上記の中央凹部３ａ及び外周凹部３ｂには複数（図示例では３つ）の加振機構４がそれぞれ収容され、これらの加振機構４を介して基台３の上方に振動台５が支持されている。振動台５は、基台３の外周凹部３ｂに対応する位置に対応する形状で下方に向けて突設された外周凸部５ａ（上記振動台凸部に相当する。）を有し、この外周凸部５ａに加振機構４が接続されている。振動台５の下部のうち、上記外周凸部５ａ以外の部分は凹部５ｂ（上記振動台凹部に相当する。）となっている。   A plurality of (three in the illustrated example) vibration mechanisms 4 are accommodated in the central recess 3 a and the outer periphery recess 3 b, respectively, and the vibration table 5 is supported above the base 3 via these vibration mechanisms 4. ing. The vibration table 5 has an outer peripheral convex portion 5a (corresponding to the above-mentioned vibration table convex portion) that protrudes downward in a shape corresponding to a position corresponding to the outer peripheral concave portion 3b of the base 3. The vibration mechanism 4 is connected to the convex portion 5a. Of the lower part of the vibration table 5, the part other than the outer peripheral convex part 5a is a concave part 5b (corresponding to the vibration table concave part).

下方の基台３と上方の振動台５とは相互に接触していないが、上記外周凸部３ｃが上記凹部５ｂに対応し、上記外周凹部３ｂが上記外周凸部５ａに対応する態様で、相互に間隙をもって嵌合した状態となっている。基台３と振動台５の間には、上記中央凹部３ａに対応する空間が確保され、この空間内に加振機構４が収容されている。   Although the lower base 3 and the upper vibration table 5 are not in contact with each other, the outer peripheral convex portion 3c corresponds to the concave portion 5b, and the outer peripheral concave portion 3b corresponds to the outer peripheral convex portion 5a. They are in a state of being fitted with a gap therebetween. A space corresponding to the central recess 3a is secured between the base 3 and the vibration table 5, and the vibration mechanism 4 is accommodated in this space.

図３は上記振動台５を取り外した状態を斜め上方から見た概略斜視図、図４は当該状態の概略平面図である。上記の加振機構４においては、上記外周凹部３ｂに臨む上部内面に設けられた基台３の取付部（外周凸部３ｃに設けられた垂直軸線Ｘ周りに向いた外面部位）に基端部が接続されてなる加振体６が設けられている。この加振体６は帯状の弾性板と、その表面に貼着された圧電体で構成され、側方（水平方向、具体的には半径方向内側、すなわち垂直軸線Ｘ側）に延在し、その先端部に連結スペーサ７が連結されている。この連結スペーサ７は上記中央凹部３ａ内に配置され、自由端として動作するように何者にも支持されていない状態とされている。   FIG. 3 is a schematic perspective view of the state in which the shaking table 5 is removed as viewed obliquely from above, and FIG. 4 is a schematic plan view of the state. In the vibration mechanism 4 described above, a base end portion is attached to a mounting portion of the base 3 provided on the upper inner surface facing the outer peripheral concave portion 3b (an outer surface portion facing the vertical axis X provided on the outer peripheral convex portion 3c). Is provided with a vibrating body 6. The vibrating body 6 is composed of a belt-like elastic plate and a piezoelectric body attached to the surface thereof, and extends laterally (horizontally, specifically radially inward, that is, on the vertical axis X side) A connecting spacer 7 is connected to the tip. The connecting spacer 7 is disposed in the central recess 3a and is not supported by anyone so as to operate as a free end.

連結スペーサ７は上記加振体６と弾性体８とを連結するものである。連結スペーサ７は略Ｌ字状に構成され、加振体６に対する取付部位と、弾性体８に対する取付部位とが後述するずれ量Ｄ（図４参照）だけずれるように構成されている。弾性体８は側方（水平方向、具体的には半径方向外側、すなわち垂直軸線Ｘから離反する側）に延在し、その先端部が上記振動台５の取付部（外周凸部５ａに設けられた垂直軸線Ｘ周りに向いた外面部位）に接続されている。弾性体８は帯状の板状体であり、いわゆる板バネとして構成されている。   The connecting spacer 7 connects the vibrating body 6 and the elastic body 8. The connecting spacer 7 is formed in a substantially L shape, and is configured such that the attachment portion with respect to the vibrating body 6 and the attachment portion with respect to the elastic body 8 are shifted by a shift amount D (see FIG. 4) described later. The elastic body 8 extends laterally (in the horizontal direction, specifically, radially outward, that is, the side away from the vertical axis X), and its tip is provided on the mounting portion (outer peripheral convex portion 5a) of the vibration table 5. Connected to the outer surface portion facing the vertical axis X). The elastic body 8 is a belt-like plate-like body and is configured as a so-called leaf spring.

加振機構４を構成する加振体６、連結スペーサ７及び弾性体８は全体としてＵ字状（或いはコ字状）に構成され、加振体６の基端部が基台３に固定され、弾性体８の先端部が振動台５に固定されているだけで、連結スペーサ７で構成される内端部分は自由端として動作するように、拘束されていない状態とされている。加振体６と弾性体８はそれらの延在方向が平行となるように構成されている。これによって加振体６の延在方向（半径方向）の撓み変形により、効率的に垂直軸線Ｘ周りの往復振動を振動台５に伝えることができる。ただし、加振体６と弾性体８とは厳密に平行に設置されている必要はなく、多少の傾斜角を有して取り付けられていても構わない。   The vibration body 6, the connecting spacer 7, and the elastic body 8 constituting the vibration mechanism 4 are configured in a U shape (or a U shape) as a whole, and the base end portion of the vibration body 6 is fixed to the base 3. The inner end portion constituted by the connecting spacer 7 is not constrained so as to operate as a free end only by fixing the distal end portion of the elastic body 8 to the vibration table 5. The vibrating body 6 and the elastic body 8 are configured so that their extending directions are parallel to each other. Thus, the reciprocating vibration around the vertical axis X can be efficiently transmitted to the vibration table 5 by the bending deformation in the extending direction (radial direction) of the vibrating body 6. However, the vibrating body 6 and the elastic body 8 do not have to be installed strictly in parallel, and may be attached with a slight inclination angle.

また、加振機構４の外周側にある加振体６の基端部と弾性体８の先端部とが外周凹部３ｂと外周凸部５ａの間隙内を外周側に延在し、加振体６の基端部が外周凸部３ｃにボルト等により取り付けられ、弾性体８の先端部が外周凸部５ａにボルト等で取り付けられている。これらの加振体６の基台３に対する取付方向及び弾性体８の振動台５に対する取付方向は、いずれも垂直軸線Ｘ周りの接線方向であり、図示例では両取付方向が同じ向き（上方から見て時計回りの向き）となっている。   Further, the base end portion of the vibrating body 6 and the distal end portion of the elastic body 8 on the outer peripheral side of the vibration mechanism 4 extend to the outer peripheral side in the gap between the outer peripheral concave portion 3b and the outer peripheral convex portion 5a. The base end portion 6 is attached to the outer peripheral convex portion 3c with a bolt or the like, and the distal end portion of the elastic body 8 is attached to the outer peripheral convex portion 5a with a bolt or the like. The mounting direction of the vibrating body 6 with respect to the base 3 and the mounting direction of the elastic body 8 with respect to the vibration base 5 are both tangential directions around the vertical axis X. In the illustrated example, both mounting directions are the same direction (from above). (Clockwise direction to see).

加振機構４は全体として加振体６、連結スペーサ７及び弾性体８が傾斜姿勢となるように取り付けられている。具体的には、板状に構成される加振体６及び弾性体８の幅方向が垂直面に対して１〜２５度、好ましくは３〜１２度の範囲内で傾斜する傾斜姿勢で取り付けられている。換言すれば、加振体６はその板状に構成された表面（板面）の法線方向に撓み変形するように構成され、これによって弾性体８も板状の表面（板面）の法線方向に振動するように構成されているため、加振機構４は、加振体６の撓み方向及び弾性体８の振動方向が水平面に対して上記角度範囲内の傾斜角で傾斜した姿勢で取り付けられている。   The vibration mechanism 4 is attached so that the vibration body 6, the coupling spacer 7, and the elastic body 8 are inclined as a whole. Specifically, the vibrating body 6 and the elastic body 8 configured in a plate shape are attached in an inclined posture in which the width direction is inclined within a range of 1 to 25 degrees, preferably 3 to 12 degrees with respect to a vertical plane. ing. In other words, the vibrating body 6 is configured to bend and deform in the normal direction of the plate-shaped surface (plate surface), whereby the elastic body 8 is also a plate-shaped surface (plate surface) method. Since the vibration mechanism 4 is configured to vibrate in the linear direction, the vibration mechanism 4 has a posture in which the bending direction of the vibration body 6 and the vibration direction of the elastic body 8 are inclined at an inclination angle within the above-described angle range with respect to the horizontal plane. It is attached.

図示例では、図４に示すように加振機構４の上部が上方から見て時計回りの側に倒れるように傾斜している。この結果、反時計回りの向きに斜め上方に向いた振動方向を得ることができる。したがって、振動台５又はその上に固定される図示しない搬送体に設けられた搬送路（通常は螺旋状の溝）上に配置される搬送物（部品等）は、上記の向きに沿って搬送路上を反時計回りに移動することができる。   In the illustrated example, as shown in FIG. 4, the upper portion of the vibration mechanism 4 is inclined so as to fall clockwise as viewed from above. As a result, it is possible to obtain a vibration direction obliquely upward in the counterclockwise direction. Therefore, the conveyed product (parts, etc.) arranged on the vibration path 5 or a conveyance path (usually a spiral groove) provided on the conveyance body (not shown) fixed on the vibration table 5 is conveyed along the above direction. It can move counterclockwise on the road.

なお、本実施形態では、上方から見た場合、加振機構４の基台３に対する取付の向きが時計回りで、振動台５に対する取付の向きも時計回りであるが、これらの取付の向きは上記態様に限定されるものではない。たとえば、加振機構４の基台３に対する取付の向きと振動台５に対する取付の向きとが相互に逆方向であってもよく、共に反時計回りであってもよい。   In this embodiment, when viewed from above, the mounting direction of the vibration mechanism 4 with respect to the base 3 is clockwise and the mounting direction with respect to the vibration table 5 is also clockwise, but these mounting directions are It is not limited to the said aspect. For example, the direction of attachment of the vibration mechanism 4 to the base 3 and the direction of attachment to the vibration table 5 may be opposite to each other, or both may be counterclockwise.

加振体６は、基台３に接続された基端部から連結スペーサ７に接続された先端部までの延在形状が撓み変形可能に構成されたもの、すなわち、基端部から先端部に伸びる方向に沿って撓むように構成されたものであればよい。特に、上述のように弾性板に圧電体を取り付けたもの、すなわち圧電振動素子であることが好ましい。具体的には、例えば、弾性板の表裏両面にそれぞれ圧電体層を形成し、これらの圧電体層に所定の電圧を印加することによって屈曲するように構成したバイモルフ型圧電素子が挙げられるが、もちろん、弾性板の片面にのみ圧電体層を形成したユニモルフ型圧電素子であっても構わない。これらの圧電振動素子は、外部から所定周波数の交流電力を供給することによって当該周波数で撓み振動する。   The vibrating body 6 is configured such that the extending shape from the base end connected to the base 3 to the front end connected to the coupling spacer 7 can be deformed, that is, from the base end to the front end. What is necessary is just to be comprised so that it may bend along the extending direction. In particular, it is preferable to use a piezoelectric vibration element in which a piezoelectric body is attached to an elastic plate as described above. Specifically, for example, a bimorph type piezoelectric element configured to be formed by forming a piezoelectric layer on each of the front and back surfaces of the elastic plate and applying a predetermined voltage to these piezoelectric layers may be mentioned. Of course, a unimorph type piezoelectric element in which a piezoelectric layer is formed only on one surface of the elastic plate may be used. These piezoelectric vibration elements are flexibly vibrated at the frequency by supplying AC power of a predetermined frequency from the outside.

連結スペーサ７は加振体６の先端部に取り付けられ、当該先端部に対して、加振体６の撓み方向（図示例では加振体６の基端側を中心とした円弧に沿った方向）の一側（図示例では上方から見て反時計回り側）に所定の間隙Ｇ（図４参照）を設けて弾性体８が取付けられている。連結スペーサ７は、上述のように加振体６の延在方向と弾性体８の延在方向とが平行になるように連結される。連結スペーサ７の連結態様は、加振体６と弾性体８の間隔Ｇと、加振体６の先端部と弾性体８の基端部との間の上記延在方向に沿ったずれ量Ｄとによって規定される。連結スペーサ７は基本的には上記間隔Ｇを確保できる形状であればよいが、図示例の場合には上記ずれ量Ｄをも設けることができるように、加振体６と平行に伸びる凸部７ａを備え、全体としてＬ字状に構成されている。   The connecting spacer 7 is attached to the distal end portion of the vibrating body 6, and the bending direction of the vibrating body 6 with respect to the distal end portion (in the illustrated example, a direction along an arc centered on the proximal end side of the vibrating body 6. ) Is provided with a predetermined gap G (see FIG. 4) on one side (in the example shown, counterclockwise when viewed from above), and the elastic body 8 is attached. As described above, the connecting spacer 7 is connected so that the extending direction of the vibrating body 6 and the extending direction of the elastic body 8 are parallel to each other. The connection mode of the connection spacer 7 includes a gap G between the vibrating body 6 and the elastic body 8, and a shift amount D along the extending direction between the distal end portion of the vibrating body 6 and the base end portion of the elastic body 8. And is prescribed by The connecting spacer 7 may basically have a shape that can secure the gap G. However, in the illustrated example, the protruding portion that extends in parallel with the vibrating body 6 so that the deviation D can be provided. 7a, and is configured in an L shape as a whole.

本実施形態では、加振体６の基端部よりも弾性体８の先端部（振動台５に対する接続点）が外周側に位置するように構成されている。すなわち、弾性体８の振動台５に対する接続点は、加振体６の基台３に対する接続点より連結スペーサ７（垂直軸線Ｘ）とは反対側に配置されている。これは、図示例では弾性体８が加振体６より長く形成されているとともに連結スペーサ７により上記ずれ量Ｄが設けられていることによって実現されている。これによって加振体６で発生した振動は弾性体８で増幅されやすくなり、振動台５に効率的に伝達される。ただし、加振体６と弾性体８の長さ関係は上記関係に限定されるものではない。   In this embodiment, it is comprised so that the front-end | tip part (connection point with respect to the vibration stand 5) of the elastic body 8 may be located in the outer peripheral side rather than the base end part of the vibration body 6. FIG. That is, the connection point of the elastic body 8 with respect to the vibration table 5 is disposed on the opposite side of the connection spacer 7 (vertical axis X) with respect to the connection point of the vibration body 6 with respect to the base 3. In the illustrated example, this is realized by the elastic body 8 being formed longer than the vibrating body 6 and the shift amount D being provided by the connecting spacer 7. As a result, the vibration generated in the vibrating body 6 is easily amplified by the elastic body 8 and efficiently transmitted to the vibration table 5. However, the length relationship between the vibrating body 6 and the elastic body 8 is not limited to the above relationship.

加振体６に既定の交流を印加すると、加振体６の先端部は基台３との接続点よりやや先端側にある擬似中心点（図示せず）を中心とする往復円弧運動に近い振動を生ずる。この結果、連結スペーサ７に対する弾性体８の接続点にも上記往復円弧運動に近い振動が伝達され、この振動は弾性体８によって増幅されて振動台５に伝達される。   When a predetermined alternating current is applied to the vibrating body 6, the tip of the vibrating body 6 is close to a reciprocating arc motion centering on a pseudo center point (not shown) slightly on the tip side from the connection point with the base 3. Causes vibration. As a result, vibration close to the reciprocating arc motion is also transmitted to the connection point of the elastic body 8 with respect to the connecting spacer 7, and this vibration is amplified by the elastic body 8 and transmitted to the vibration table 5.

本実施形態では、弾性体８においては、上記加振体６の延在方向の中点を通過し、当該延在方向と直交する中心線６ｓとほぼ一致する直交線８ｓが交差する部分が振動の節となる態様で撓み振動し、その結果、弾性体８の先端部の振動は、弾性体８の先端から上記節までの距離と、弾性体８の基端から上記節までの距離との比にほぼ対応する割合で増幅される。この場合、上述の連結スペーサ７の形状を変えて上記間隙Ｇやずれ量Ｄを適宜に設定することにより、或いは、加振体６と弾性体８の延在方向の長さの比を調整することにより、振動台５の振動態様を最適化することができる。   In the present embodiment, in the elastic body 8, a portion that passes through the midpoint of the extending direction of the vibrating body 6 and intersects with the orthogonal line 8s that substantially coincides with the center line 6s orthogonal to the extending direction vibrates. As a result, the vibration of the distal end portion of the elastic body 8 is caused by the distance from the distal end of the elastic body 8 to the node and the distance from the base end of the elastic body 8 to the node. It is amplified at a rate that roughly corresponds to the ratio. In this case, by changing the shape of the connecting spacer 7 and appropriately setting the gap G and the shift amount D, or adjusting the length ratio of the vibrating body 6 and the elastic body 8 in the extending direction. As a result, the vibration mode of the vibration table 5 can be optimized.

本実施形態において、弾性体８は加振体６の撓み運動に応じて振動するが、一般的には、加振体６の延在方向の中点に対応する位置に節を有する態様で振動するので、連結スペーサ７により上記ずれ量Ｄが設けられることで、弾性体８の基端寄りに節が位置することとなり、その結果、弾性体８を長くしなくても振幅の増幅率を高めることができる。これは、加振機構４のねじれ方向の剛性を低下させずに必要な振幅を得ることができることを意味する。   In the present embodiment, the elastic body 8 vibrates in accordance with the bending motion of the vibrating body 6, but generally vibrates in a manner having a node at a position corresponding to the midpoint in the extending direction of the vibrating body 6. Therefore, the shift amount D is provided by the connecting spacer 7, so that the node is positioned closer to the base end of the elastic body 8, and as a result, the amplification factor of the amplitude is increased without lengthening the elastic body 8. be able to. This means that a necessary amplitude can be obtained without reducing the rigidity of the vibration mechanism 4 in the torsional direction.

本実施形態では、搬送方向に離間した複数箇所において、上記加振体６、連結スペーサ７及び弾性体８よりなる加振機構４がそれぞれ設けられている。そして、これらの複数の加振機構は、それぞれ搬送方向に対して同方向に向いた姿勢とされている。すなわち、本実施形態では、加振機構４における加振体６から弾性体８へ向かう方向が搬送方向となるため、各加振機構は全て搬送方向に見て同じ姿勢で取り付けられる。具体的には、本実施形態の加振装置（回転振動機）では、その垂直軸線Ｘ周りに同じ姿勢の複数の加振機構４が（図示例では垂直軸線Ｘ周りに１２０度間隔で設けられた３箇所に）設置されている。もっとも、加振機構４の姿勢は任意であり、たとえば、上記とは逆に傾斜させることで弾性体８から加振体６へ向かう方向が搬送方向となるように構成することも可能である。また、加振機構４は少なくとも一つ設けられていればよく、たとえば、一つの加振機構４以外の他の箇所には単なる弾性支持機構を配置するようにしてもよい。   In the present embodiment, the vibration mechanisms 4 including the vibration body 6, the connecting spacer 7, and the elastic body 8 are provided at a plurality of locations separated in the transport direction. The plurality of vibration mechanisms are each oriented in the same direction with respect to the transport direction. That is, in this embodiment, since the direction from the vibrating body 6 to the elastic body 8 in the vibration mechanism 4 is the transport direction, all the vibration mechanisms are attached in the same posture as viewed in the transport direction. Specifically, in the vibration device (rotary vibrator) of the present embodiment, a plurality of vibration mechanisms 4 having the same posture are provided around the vertical axis X (in the illustrated example, at intervals of 120 degrees around the vertical axis X). 3 places). However, the posture of the vibration mechanism 4 is arbitrary, and for example, it can be configured such that the direction from the elastic body 8 toward the vibration body 6 becomes the transport direction by inclining in the opposite direction. Further, it is sufficient that at least one vibration mechanism 4 is provided. For example, a simple elastic support mechanism may be disposed at a place other than one vibration mechanism 4.

以上説明した加振装置では、従来の装置に比べてコンパクトでありながら効率的に搬送を行うことができる。具体的には、加振体６、連結スペーサ７及び弾性体８で構成されるＵ字状の加振機構４により、加振機構４の振幅増幅に必要な長さを確保しつつ振動台５の水平面に対する振動傾斜角のばらつきを低減する上で有効な剛性を確保することができるし、また、上記振動傾斜角は加振機構４の振動面に沿った角度となるので加振機構４の円弧状の振動態様によって変動することもないから、振動傾斜角を高精度かつ安定的に設定することができ、搬送効率を容易に向上できる。実際に本願発明者らが本実施形態の装置で確認したところ、微細な電子部品に対する搬送速度が従来より大幅に向上するとともに、騒音も低減されていることが判明している。騒音の低下は振動の利用効率が高まった結果であろう。また、上記のＵ字状の加振機構４を用いることで加振機構４がコンパクトに構成され、その結果、全体としてもコンパクトな加振装置を構成できる。   The vibration device described above can be efficiently transported while being more compact than a conventional device. Specifically, the vibration table 5 is secured by the U-shaped vibration mechanism 4 including the vibration body 6, the connecting spacer 7, and the elastic body 8 while ensuring the length necessary for amplitude amplification of the vibration mechanism 4. It is possible to ensure rigidity effective in reducing variation in the vibration inclination angle with respect to the horizontal plane, and the vibration inclination angle is an angle along the vibration surface of the vibration excitation mechanism 4. Since it does not fluctuate depending on the arc-shaped vibration mode, the vibration inclination angle can be set with high accuracy and stability, and the conveyance efficiency can be easily improved. When the inventors of the present invention actually confirmed with the apparatus of the present embodiment, it has been found that the conveyance speed for fine electronic components is significantly improved as compared with the prior art, and noise is also reduced. The reduction in noise may be a result of increased use efficiency of vibration. Further, by using the U-shaped vibration mechanism 4 described above, the vibration mechanism 4 is configured in a compact manner, and as a result, a compact vibration device can be configured as a whole.

また、本実施形態では、加振体６と弾性体８は接続部位で連結スペーサ７を介して接続され、該連結スペーサ７の加振体６に対する連結点よりも弾性体８に対する連結点が弾性体８の振動台５に対する接続点側（外周側）に配置されている。したがって、弾性体８の振動の節がその基端寄りに形成されるので、弾性体８の延在方向の長さをそれほど増大させなくてもその先端において十分な振幅の増大を図ることができ、また、弾性体８の延在方向の長さの増大を抑制できるので、加振機構４のねじれ剛性の低下を回避することができるため、振動傾斜角のばらつきや変動をさらに低減することができる。   Further, in this embodiment, the vibrating body 6 and the elastic body 8 are connected to each other through the connecting spacer 7 at the connecting portion, and the connecting point of the connecting spacer 7 to the elastic body 8 is more elastic than the connecting point of the connecting spacer 7 to the vibrating body 6. It is arranged on the connection point side (outer peripheral side) of the body 8 with respect to the vibration table 5. Therefore, since the vibration node of the elastic body 8 is formed near the base end thereof, it is possible to increase the amplitude sufficiently at the tip without increasing the length of the elastic body 8 in the extending direction. In addition, since the increase in the length of the elastic body 8 in the extending direction can be suppressed, a decrease in the torsional rigidity of the vibration mechanism 4 can be avoided, so that variations and fluctuations in the vibration inclination angle can be further reduced. it can.

さらに、本実施形態の場合、基台３に外周凹部３ｂ及び外周凸部３ｃを設け、振動台５に外周凸部５ａと凹部５ｂを設けるとともに、外周凹部３ｂと外周凸部５ａが対応し、外周凸部３ｃと凹部５ｂが対応する態様で、基台３と振動台５が相互に間隙を有して嵌合した状態とされていることから、基台３及び振動台５の剛性を確保しやすくなるとともに、加振装置の高さを低減することが可能になっている。   Furthermore, in the case of this embodiment, the base 3 is provided with the outer peripheral recess 3b and the outer peripheral protrusion 3c, the vibration table 5 is provided with the outer peripheral protrusion 5a and the recess 5b, and the outer peripheral recess 3b and the outer peripheral protrusion 5a correspond to each other. Since the outer peripheral convex portion 3c and the concave portion 5b correspond to each other and the base 3 and the vibration table 5 are fitted with a gap therebetween, the rigidity of the base 3 and the vibration table 5 is ensured. This makes it possible to reduce the height of the vibration exciter.

その上、従来の搬送装置では、加振体により生じた振動が基台より外部に漏れ、周囲の装置に影響を与える場合があるため、振動により生ずるモーメントを打ち消すためのおもり等を用意しなければならないという問題点があるが、本実施形態では、加振体６、連結スペーサ７及び弾性体８がＵ字状に構成されていることにより、加振機構４の基台３と振動台５に対する作用点が近く、しかも作用方向が逆方向となり、基台３と振動台５の動作が相互に打ち消すように働くため、基台３から下方（取付ベース１や支持台２、或いは、これらを介して床面）へ逃げる振動エネルギーを低減することができる。   In addition, in the conventional transfer device, the vibration generated by the vibrating body may leak outside from the base and affect the surrounding device.Therefore, a weight to counteract the moment generated by the vibration must be prepared. In this embodiment, the vibration body 6, the connecting spacer 7, and the elastic body 8 are configured in a U shape, so that the base 3 and the vibration base 5 of the vibration mechanism 4 are configured. Since the action point is close and the action direction is opposite, and the operation of the base 3 and the vibration table 5 cancels each other, the lower side of the base 3 (the mounting base 1 and the support base 2, or these The vibrational energy that escapes to the floor surface can be reduced.

なお、本実施形態では回転型振動式搬送装置に対応する加振装置（回転振動機）に本発明を適用した例を示したが、本発明は上記実施形態に限らず、例えば、リニア型振動式搬送装置に用いることも可能である。この場合でも、基台３、振動台５、加振体６、連結スペーサ７、弾性体８、並びに、これらと搬送方向との関係は何ら上記説明と変わりはない。また、この場合において加振機構４を搬送方向の前後２箇所にそれぞれ同じ姿勢で取付けることで、安定した搬送態様を実現することができる。もっとも、加振機構４を一箇所にのみ形成し、その搬送方向の前若しくは後或いは双方に振動台を支持する弾性機構（加振体を有さず、弾性体のみで構成される支持構造）を取り付けてもよい。   In the present embodiment, the example in which the present invention is applied to the vibration device (rotary vibrator) corresponding to the rotary vibration transfer device has been described. However, the present invention is not limited to the above embodiment, and, for example, linear vibration It is also possible to use it for a type conveying device. Even in this case, the base 3, the vibration table 5, the vibration body 6, the connecting spacer 7, the elastic body 8, and the relationship between these and the transport direction are the same as described above. In this case, a stable transport mode can be realized by attaching the vibration mechanism 4 to the two positions in the front and rear in the transport direction in the same posture. However, the vibration mechanism 4 is formed only at one place, and an elastic mechanism that supports the vibration table before, after, or both in the conveying direction (a support structure that includes only the elastic body without the vibration body). May be attached.

本実施形態の加振装置には、上記振動台５上に図示しないボウル状の搬送体を固定し、この搬送体に螺旋状、円周状の搬送路を形成することで、適宜の搬送物を螺旋状、円周状に搬送することができる。もちろん、上記振動台５に直接搬送路を形成してもよい。また、上記実施形態の加振機構の構成は上述のようにそのままリニア型振動式搬送装置にも用いることができるが、この場合でも、振動台若しくはこの振動台に固定された搬送体に直線状の搬送路を形成すればよい。   In the vibration device of the present embodiment, a bowl-shaped transport body (not shown) is fixed on the vibration table 5 and a spiral or circumferential transport path is formed on the transport body. Can be conveyed spirally or circumferentially. Of course, a conveyance path may be formed directly on the vibration table 5. Further, as described above, the configuration of the vibration mechanism of the above embodiment can be used as it is for a linear vibration type conveying apparatus. However, even in this case, the vibration mechanism or the conveyance body fixed to the vibration table is linear. What is necessary is just to form the conveyance path.

実施形態の加振装置の正面図。The front view of the vibration apparatus of embodiment. 実施形態の加振装置の縦断面図（図４のＡ−Ａ線断面矢視図）。The longitudinal cross-sectional view (AA sectional view taken on the line of FIG. 4) of the vibration apparatus of embodiment. 実施形態の加振装置の振動台を取り外した様子を示す斜視図。The perspective view which shows a mode that the vibration stand of the vibration apparatus of embodiment was removed. 実施形態の加振装置の振動台を取り外した様子を示す平面図。The top view which shows a mode that the shaking table of the vibration apparatus of embodiment was removed.

符号の説明Explanation of symbols

３…基台、３ａ…凹部、３ｂ…取付部、４…加振機構、５…振動台、５ａ…外周凸部、６…加振体、５ｓ…中央線、７…連結スペーサ、８…弾性体、８ｓ…直交線、Ｇ…間隙、Ｄ…ずれ量 DESCRIPTION OF SYMBOLS 3 ... Base, 3a ... Concave part, 3b ... Mounting part, 4 ... Excitation mechanism, 5 ... Vibration table, 5a ... Outer peripheral convex part, 6 ... Excitation body, 5s ... Center line, 7 ... Connection spacer, 8 ... Elasticity Body, 8s ... orthogonal line, G ... gap, D ... deviation amount

Claims (6)

基台と、該基台の上方に配置される振動台と、前記基台と前記振動台との間に介在して前記振動台を振動させる加振機構と、を具備する加振装置において、
前記加振機構は、前記基台に接続され、前記基台に対する接続点より側方に延在し、その延在形状が撓み変形する加振体と、該加振体の先端部に対して接続されるとともに、前記加振体の撓み方向に沿った一方の側に間隔を設けた態様で前記加振体とは逆方向へ延在して前記振動台に接続される弾性体と、を有し、全体として前記加振体と前記弾性体の接続部位を自由端として動作するＵ字状に構成され、
前記加振体の撓み方向及び前記弾性体の振動面が水平面に対して傾斜した方向に設定されていることを特徴とする加振装置。 In a vibration exciter comprising: a base; a vibration table disposed above the base; and a vibration mechanism that vibrates the vibration table interposed between the base and the vibration table.
The excitation mechanism is connected to the base, extends laterally from a connection point with respect to the base, and the extension shape is bent and deformed. An elastic body that is connected and extends in the opposite direction to the vibration exciter and connected to the vibration table in a mode in which an interval is provided on one side along the bending direction of the vibration exciter. Having a U-shape that operates as a free end as a connection portion of the vibrating body and the elastic body as a whole,
The vibration exciter is characterized in that the bending direction of the vibration exciter and the vibration surface of the elastic member are set in a direction inclined with respect to a horizontal plane. 前記加振体と前記弾性体は前記接続部位で連結スペーサを介して接続され、該連結スペーサの前記加振体に対する連結点よりも前記弾性体に対する連結点が前記弾性体の前記振動台に対する接続点側に配置されることを特徴とする請求項１に記載の加振装置。   The vibrating body and the elastic body are connected to each other through a connecting spacer at the connecting portion, and the connecting point of the connecting spacer to the elastic body is connected to the shaking table of the elastic body rather than the connecting point of the connecting spacer to the vibrating body. The vibration device according to claim 1, wherein the vibration device is disposed on a point side. 前記弾性体の前記振動台に対する接続点は、前記加振体の前記基台に対する接続点より前記接続部位とは反対側に配置されることを特徴とする請求項１又は２に記載の加振装置。   3. The excitation according to claim 1, wherein a connection point of the elastic body with respect to the shaking table is disposed on a side opposite to the connection portion with respect to a connection point of the vibration body with respect to the base. apparatus. 複数の前記加振機構が垂直軸線周りに配置され、該複数の加振機構の前記弾性体が取り付けられてなる前記振動台が前記垂直軸線周りに往復振動するように構成されていることを特徴とする請求項１乃至３のいずれか一項に記載の加振装置。   A plurality of the vibration mechanisms are arranged around a vertical axis, and the shaking table to which the elastic bodies of the plurality of vibration mechanisms are attached is configured to reciprocate around the vertical axis. The vibration device according to any one of claims 1 to 3. 前記基台は、前記加振体に対する接続点が設けられた前記振動台側に突出する基台凸部と、前記振動台から離間する基台凹部とを有し、
前記振動台は、前記弾性体に対する接続点が設けられ、前記基台凹部に臨み前記基台側に突出する振動台凸部と、前記基台凸部を収容する振動台凹部とを有することを特徴とする請求項１乃至４のいずれか一項に記載の加振装置。 The base includes a base convex portion protruding toward the vibration table provided with a connection point to the vibrating body, and a base concave portion spaced from the vibration table,
The vibration table is provided with a connection point to the elastic body, and has a vibration table convex portion that faces the base concave portion and protrudes toward the base, and a vibration table concave portion that accommodates the base convex portion. The excitation device according to any one of claims 1 to 4, wherein the excitation device is characterized. 請求項１乃至５のいずれか一項に記載の加振装置と、該加振装置の前記振動台に固定される搬送路と、を具備することを特徴とする振動式搬送装置。   A vibratory transfer device comprising: the vibration exciter according to any one of claims 1 to 5; and a conveyance path fixed to the vibration table of the vibration exciter.

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