JP6289410B2 - Sorting mechanism - Google Patents

Sorting mechanism Download PDF

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JP6289410B2
JP6289410B2 JP2015065430A JP2015065430A JP6289410B2 JP 6289410 B2 JP6289410 B2 JP 6289410B2 JP 2015065430 A JP2015065430 A JP 2015065430A JP 2015065430 A JP2015065430 A JP 2015065430A JP 6289410 B2 JP6289410 B2 JP 6289410B2
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workpiece
arm portion
shaft
sorting mechanism
stopper
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JP2016183043A (en
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公明 館林
公明 館林
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JATCO Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/04—Sorting according to size
    • B07C5/06—Sorting according to size measured mechanically

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sorting Of Articles (AREA)
  • Discharge Of Articles From Conveyors (AREA)
  • Feeding Of Articles To Conveyors (AREA)

Description

本発明は、ワークの仕分け機構に関する。   The present invention relates to a workpiece sorting mechanism.

特許文献１には、ワークの搬送路上に外周側区域よりも内周側区域の方が低くなるように傾斜した領域を設けると共に、外周側区域と内周側区域との境界に、所定の大きさの開口を有するゲート部材を設けて、外周側区域に搬送されたワークのうち、開口を通過可能な大きさのワークのみが、ゲート部材の開口を通って内周側区域に移動するようにした仕分け機構が開示されている。   In Patent Document 1, an area that is inclined so that the inner peripheral side area is lower than the outer peripheral side area is provided on the workpiece conveyance path, and a predetermined size is provided at the boundary between the outer peripheral side area and the inner peripheral side area. A gate member having an opening is provided so that only workpieces of a size that can pass through the opening among the workpieces transported to the outer peripheral side region move to the inner peripheral side region through the opening of the gate member. A sorting mechanism is disclosed.

実開昭５９−７０８１７号公報Japanese Utility Model Publication No.59-70817

この特許文献１に開示された仕分け機構では、開口を通過可能なワークであれば、その大小に拘わらず内周側区画に移動するようになっている。
そのため、ゲート部材を通過させて取り出したいワーク（対象ワーク）と、この対象ワークよりも大きさの小さい対象外ワークとが、搬送路で搬送されるワークに混在している場合、特許文献１の仕分け機構では、対象ワークを取り出すことができなかった。 In the sorting mechanism disclosed in Patent Document 1, any workpiece that can pass through the opening moves to the inner circumferential section regardless of its size.
Therefore, when a workpiece (target workpiece) that is desired to pass through the gate member and a non-target workpiece that is smaller in size than the target workpiece are mixed in the workpiece conveyed on the conveyance path, Patent Document 1 The sorting mechanism could not take out the target workpiece.

そのため、対象ワークと、この対象ワークよりも大きさの小さい対象外ワークとが混在している場合に、対象ワークのみを取り出すことができるようにすることが求められている。   Therefore, when the target work and a non-target work smaller in size than the target work are mixed, it is required to be able to take out only the target work.

本発明は、
搬送路に沿って搬送されるワークのうち、基準位置から前記ワーク上の所定部位までの長さが、仕分け用の基準長さ以上である対象ワークを通過させ、前記基準長さ未満である対象外ワークの通過を阻止する仕分け機構であって、
前記搬送路の外に設定した第１回転軸で揺動可能に支持されていると共に、前記第１回転軸の径方向に所定長さを有する腕部に設けたストッパ部が、前記ワークの搬送方向における前記第１回転軸よりも下流側で、前記搬送されるワークの移動を阻止する阻止位置と、移動を阻止しない非阻止位置との間で変位可能とされた規制部材と、
前記第１回転軸に対して平行に設けられた第２回転軸で揺動可能に支持されていると共に、前記第２回転軸の径方向に所定長さを有する腕部の先端側を、前記第２回転軸よりも下流側で、前記規制部材の腕部の前記搬送路側に配置した作動部材と、
前記ストッパ部を前記阻止位置に配置させる方向の回転力を前記規制部材に作用させる回転力作用機構と、
前記規制部材の腕部における前記ストッパ部と前記第１回転軸の間の領域と、前記作動部材の腕部の何れか一方に設けられて、前記規制部材の腕部における前記ストッパ部と前記第１回転軸の間の領域と、前記作動部材の腕部の他方に先端部を当接させた当接部材と、を有し、
前記規制部材が、前記ストッパ部を前記阻止位置に配置させた状態で、前記作動部材の腕部が、前記対象ワークの移動によってのみ、前記ストッパ部を前記非阻止位置に変位させる位置に配置したことを特徴とする仕分け機構とした。 The present invention
Among the workpieces transported along the transport path, the target workpiece whose length from the reference position to the predetermined part on the workpiece is equal to or greater than the reference length for sorting is less than the reference length A sorting mechanism that prevents the passage of outside workpieces,
A stopper provided on an arm portion that is swingably supported by a first rotating shaft set outside the conveying path and has a predetermined length in the radial direction of the first rotating shaft is configured to convey the workpiece. A regulating member that is displaceable between a blocking position that prevents movement of the conveyed workpiece and a non-blocking position that does not block movement on the downstream side of the first rotating shaft in the direction;
The tip end side of the arm portion supported by a second rotation shaft provided in parallel to the first rotation shaft and swingable at a predetermined length in the radial direction of the second rotation shaft, An operation member disposed on the transport path side of the arm portion of the restriction member on the downstream side of the second rotation shaft;
A rotational force acting mechanism that causes the restricting member to act on a rotational force in a direction in which the stopper portion is disposed at the blocking position;
The stopper member in the arm portion of the restricting member is provided in any one of the region between the stopper portion and the first rotating shaft in the arm portion of the restricting member and the arm portion of the actuating member, A region between one rotation axis and an abutting member having a tip abutted against the other arm of the operating member;
The restricting member is disposed in a position where the arm portion of the actuating member displaces the stopper portion to the non-blocking position only by movement of the target workpiece in a state where the stopper portion is disposed in the blocking position. The sorting mechanism was characterized by this.

本発明によると、作動部材の腕部は、搬送路に沿って搬送されるワークのうち、基準位置からワーク上の所定部位までの長さが仕分け用の基準長さ以上である対象ワークのみが接触する位置に配置される。
よって、搬送される対象ワークの移動により、作動部材が第２回転軸回りに回転して、この作動部材の回転が、当接部材を介して規制部材に伝達される結果、規制部材は、当接部材から作用する押圧力で、第１回転軸回りに回転して、腕部に設けたストッパ部が、搬送されるワークの移動を阻止する阻止位置から、移動を阻止しない非阻止位置まで変位するので、対象ワークは、仕分け機構を通過する。
一方、対象外ワークの場合、搬送される対象ワークの移動により、作動部材が第２回転軸回りに大きく回転しないので、規制部材は、当接部材から作用する押圧力で、ストッパ部を阻止位置から非阻止位置まで回転しないので、規制部材のストッパ部は、搬送されるワークの移動を阻止する阻止位置に保持されたままとなる。
よって、対象外ワークは、ストッパ部により移動が規制されて、仕分け機構を通過できないことになり、仕分け機構を、対象ワークと、この対象ワークよりも大きさの小さい対象外ワークとが混在して搬送されることのある搬送路に設けたことで、対象ワークのみを通過させて、取り出すことができる。 According to the present invention, the arm portion of the actuating member is only a target workpiece whose length from the reference position to a predetermined part on the workpiece is equal to or greater than the reference length for sorting among the workpieces conveyed along the conveyance path. It is arranged at the position of contact.
Therefore, the movement of the object to be conveyed rotates the operating member around the second rotation axis, and the rotation of the operating member is transmitted to the regulating member via the contact member. With the pressing force acting from the contact member, it rotates around the first rotation axis, and the stopper provided on the arm part is displaced from the blocking position that prevents the movement of the conveyed workpiece to the non-blocking position that does not block the movement. Therefore, the target workpiece passes through the sorting mechanism.
On the other hand, in the case of a non-target workpiece, the actuating member does not rotate significantly around the second rotation axis due to the movement of the target workpiece to be conveyed. Therefore, the stopper portion of the restricting member remains held at the blocking position for blocking the movement of the conveyed workpiece.
Therefore, the movement of the non-target workpiece is restricted by the stopper portion and cannot pass through the sorting mechanism, and the sorting mechanism is mixed with the target workpiece and the non-target workpiece having a smaller size than the target workpiece. By providing it on a transport path that may be transported, only the target workpiece can be passed through and taken out.

仕分け機構を採用した搬送装置を説明する図である。It is a figure explaining the conveying apparatus which employ | adopted the sorting mechanism. 仕分け機構の動作を説明する図である。It is a figure explaining operation | movement of a sorting mechanism. 仕分け機構の動作を説明する図である。It is a figure explaining operation | movement of a sorting mechanism. 変形例に係る仕分け機構を説明する図である。It is a figure explaining the sorting mechanism concerning a modification. 変形例に係る仕分け機構を説明する図である。It is a figure explaining the sorting mechanism concerning a modification.

以下、実施の形態にかかる仕分け機構１を採用した、搬送装置２を説明する。
図１は、仕分け機構１を採用した搬送装置２を説明する図であり、（ａ）は、搬送路２０に沿って搬送されるワーク１０Ａ、１０Ｂと、仕分け機構１の位置関係を説明する模式図であり、（ｂ）は、搬送路２０の一部を上方から見た平面図であり、（ｃ）は、（ｂ）におけるＡ−Ａ断面図である。なお、図１の（ａ）における線分Ｌｍは、搬送装置２で搬送されるワークＡの軸部１２Ａの下端１２Ａ１の移動軌跡を示しており、線分Ｌｎは、搬送装置２で搬送されるワーク１０Ｂのワーク１０Ｂの軸部１２Ｂの下端１２Ｂ１の移動軌跡を示している。 Hereinafter, the conveying apparatus 2 that employs the sorting mechanism 1 according to the embodiment will be described.
FIG. 1 is a diagram illustrating a transport device 2 that employs a sorting mechanism 1, and FIG. 1A is a schematic diagram illustrating the positional relationship between workpieces 10 </ b> A and 10 </ b> B transported along a transport path 20 and the sorting mechanism 1. It is a figure, (b) is the top view which looked at a part of conveyance path 20 from upper direction, (c) is AA sectional drawing in (b). Note that a line segment Lm in FIG. 1A indicates the movement locus of the lower end 12A1 of the shaft portion 12A of the workpiece A conveyed by the conveyance device 2, and the line segment Ln is conveyed by the conveyance device 2. The movement trajectory of the lower end 12B1 of the shaft portion 12B of the workpiece 10B of the workpiece 10B is shown.

図１の（ｂ）に示すように、搬送装置２の搬送路２０は、幅方向に間隔を開けて互いに平行に配置された一対の搬送レール２１、２２を有している。
この搬送路２０は、当該搬送路２０でのワーク１０Ａ、１０Ｂの搬送方向における下流側（図１の（ａ）における左側）が、上流側（図１の（ａ）における右側）よりも下側に位置するように傾いて設置されており（図１の（ａ）参照）、搬送路２０に載置されたワーク１０Ａ、１０Ｂが、搬送方向における下流側に向けて自重により移動するようになっている。 As shown in FIG. 1B, the transport path 20 of the transport apparatus 2 has a pair of transport rails 21 and 22 arranged in parallel to each other with a gap in the width direction.
In the transport path 20, the downstream side (left side in FIG. 1A) in the transport direction of the workpieces 10A and 10B in the transport path 20 is lower than the upstream side (right side in FIG. 1A). (See FIG. 1A), the workpieces 10A and 10B placed on the transport path 20 move toward the downstream side in the transport direction by their own weight. ing.

搬送路２０で搬送されるワーク１０Ａ、１０Ｂは、円板状の基部１１Ａ、１１Ｂと、この基部１１Ａ、１１Ｂの中央部から当該基部１１Ａ、１１Ｂに直交する方向に延びる円柱状の軸部１２Ａ、１２Ｂと、を有しており、実施の形態の搬送路２０では、軸部１２Ａ、１２Ｂの長さＬ１、Ｌ２（図１の（ａ）参照）が異なる二種類のワーク１０Ａ、１０Ｂが搬送されることがある。   The workpieces 10A and 10B transported in the transport path 20 include disc-shaped base portions 11A and 11B, and columnar shaft portions 12A extending from the center portions of the base portions 11A and 11B in a direction perpendicular to the base portions 11A and 11B. 12B, and two types of workpieces 10A and 10B having different lengths L1 and L2 (see FIG. 1A) of the shaft portions 12A and 12B are conveyed in the conveyance path 20 of the embodiment. Sometimes.

搬送路２０においてワーク１０Ａ、１０Ｂは、軸部１２Ａ、１２Ｂを搬送レール２１、２２の間に挿入すると共に、基部１１Ａ、１１Ｂが搬送レール２１、２２に掛け渡された状態で搬送される。
そのため、搬送路２０では、搬送されるワーク１０Ａ、１０Ｂに応じて、軸部１２Ａ、１２Ｂの下方への突出長さＬ１、Ｌ２（搬送レール２１、２２の載置面（基準位置）を基準とした所定方向への突出長さ）が異なっており、ワーク１０Ａが搬送される際の軸部１２Ａの下端１２Ａ１の移動軌跡を示す線分Ｌｎは、ワーク１０Ｂが搬送される際の軸部１２Ｂの下端１２Ｂ１の移動軌跡を示す線分Ｌｍよりも、軸部１２Ａ、１２Ｂの長さの差（Ｌ１−Ｌ２）の分だけ、基準位置から離れた下側に位置している。 In the conveyance path 20, the workpieces 10 </ b> A and 10 </ b> B are conveyed in a state where the shaft portions 12 </ b> A and 12 </ b> B are inserted between the conveyance rails 21 and 22 and the base portions 11 </ b> A and 11 </ b> B are stretched over the conveyance rails 21 and 22.
Therefore, in the conveyance path 20, depending on the workpieces 10 </ b> A and 10 </ b> B to be conveyed, the lengths L <b> 1 and L <b> 2 projecting downward from the shaft portions 12 </ b> A and 12 </ b> B The line segment Ln indicating the movement locus of the lower end 12A1 of the shaft portion 12A when the workpiece 10A is transported is different from the line segment Ln of the shaft portion 12B when the workpiece 10B is transported. It is located on the lower side away from the reference position by the length difference (L1-L2) of the shaft portions 12A and 12B from the line segment Lm indicating the movement locus of the lower end 12B1.

そのため、実施の形態にかかる搬送装置２では、軸部１２Ａ、１２Ｂの下端１２Ａ１、１２Ｂ１の位置の違いを利用して、仕分け機構１により、ワーク１０Ａとワーク１０Ｂとを仕分けるようになっている。   Therefore, in the transport device 2 according to the embodiment, the work 10A and the work 10B are sorted by the sorting mechanism 1 using the difference in the positions of the lower ends 12A1 and 12B1 of the shaft portions 12A and 12B.

仕分け機構１は、搬送路２０の下側に設けられており、ワーク１０Ａ、１０Ｂの下流側への移動を規制する規制部材３と、この規制部材３による規制を解除する解除部材４と、を有している。   The sorting mechanism 1 is provided on the lower side of the conveyance path 20, and includes a restriction member 3 that restricts the movement of the workpieces 10A and 10B to the downstream side, and a release member 4 that releases the restriction by the restriction member 3. Have.

規制部材３は、ワーク１０Ａ、１０Ｂの搬送方向に直交する水平軸（回転軸Ｘ１）で揺動可能に設けられており、回転軸Ｘ１に沿う軸部５１に外挿されたリング状の連結部３１と、連結部３１の外周から回転軸Ｘ１の径方向に直線状に延びる第１腕部３２と、第１腕部３２の先端部３２ａに固定されたストッパ部３３と、連結部３１における第１腕部３２とは反対側の外周から、回転軸Ｘ１の径方向に直線状に延びる第２腕部３４と、を有している。   The restricting member 3 is provided so as to be swingable by a horizontal axis (rotary axis X1) orthogonal to the conveying direction of the workpieces 10A and 10B, and is a ring-shaped connecting part that is extrapolated to a shaft part 51 along the rotational axis X1. 31, a first arm portion 32 linearly extending in the radial direction of the rotation axis X <b> 1 from the outer periphery of the connecting portion 31, a stopper portion 33 fixed to the distal end portion 32 a of the first arm portion 32, and a first arm in the connecting portion 31. From the outer periphery opposite to the one arm portion 32, there is a second arm portion 34 that extends linearly in the radial direction of the rotation axis X1.

規制部材３は、ワーク１０Ａ、１０Ｂの搬送方向における回転軸Ｘ１よりも下流側に、第１腕部３２を位置させると共に、上流側に第２腕部３４を位置させて設けられており、この状態において第１腕部３２および第２腕部３４は、回転軸Ｘ１を中心として揺動可能となっている。
そのため、第１腕部３２の先端部３２ａに固定されたストッパ部３３は、第１腕部３２の揺動に連動して、回転軸Ｘ１周りの周方向に変位するようになっている。 The regulating member 3 is provided with the first arm portion 32 positioned on the downstream side of the rotation axis X1 in the conveying direction of the workpieces 10A and 10B, and the second arm portion 34 positioned on the upstream side. In the state, the first arm portion 32 and the second arm portion 34 can swing around the rotation axis X1.
Therefore, the stopper portion 33 fixed to the distal end portion 32 a of the first arm portion 32 is displaced in the circumferential direction around the rotation axis X <b> 1 in conjunction with the swing of the first arm portion 32.

実施の形態において規制部材３は、ストッパ部３３の先端部３３ａを、線分Ｌｍよりも上方に配置して、ワーク１０Ａ、１０Ｂの下流側への移動を阻止する位置（阻止位置、図１の（ａ）参照）と、ストッパ部３３の先端部３３ａを、線分Ｌｎの下方に配置して、ワーク１０Ａ、１０Ｂの下流側への移動を阻止しない位置（非阻止位置、図２の（ｃ）参照）との間で、変位するようになっている。   In the embodiment, the regulating member 3 is configured such that the distal end portion 33a of the stopper portion 33 is disposed above the line segment Lm to prevent the workpieces 10A and 10B from moving downstream (blocking position, FIG. 1). (See (a)) and a position where the tip 33a of the stopper 33 is arranged below the line segment Ln so as not to prevent the workpieces 10A and 10B from moving downstream (non-blocking position, (c) of FIG. ))).

実施の形態では、ストッパ部３３が阻止位置に配置されると、ストッパ部３３が、ワーク１０Ｂの軸部１２Ｂの下端１２Ｂ１の移動軌跡を示す線分Ｌｍを、下側から基準位置側（上側）に横切って配置されて、搬送されるワーク１０Ａ、１０Ｂの軸部１２Ａ、１２Ｂが、ストッパ部３３に接触することで、これらワーク１０Ａ、１０Ｂの下流側への移動が規制されるようになっている。
また、ストッパ部３３が非阻止位置に配置されると、ストッパ部３３の先端部３３ａが、ワーク１０Ａの軸部１２Ａの下端１２Ａ１の移動軌跡を示す線分Ｌｎよりも下方に配置されて、ストッパ部３３と、搬送されるワーク１０Ａ、１０Ｂの軸部１２Ａ、１２Ｂとの接触を回避することで、これらワーク１０Ａ、１０Ｂの下流側への移動が規制されないようになっている。 In the embodiment, when the stopper portion 33 is disposed at the blocking position, the stopper portion 33 causes the line segment Lm indicating the movement locus of the lower end 12B1 of the shaft portion 12B of the workpiece 10B to be shifted from the lower side to the reference position side (upper side). The shaft portions 12A, 12B of the workpieces 10A, 10B that are transported across and in contact with the stopper portion 33 restrict the movement of the workpieces 10A, 10B to the downstream side. Yes.
Further, when the stopper portion 33 is disposed at the non-blocking position, the tip portion 33a of the stopper portion 33 is disposed below the line segment Ln indicating the movement locus of the lower end 12A1 of the shaft portion 12A of the workpiece 10A. By avoiding contact between the portion 33 and the shaft portions 12A, 12B of the conveyed workpieces 10A, 10B, the movement of the workpieces 10A, 10B to the downstream side is not restricted.

実施の形態にかかる規制部材３では、ストッパ部３３の阻止位置への配置を、第２腕部３４に取り付けた円筒状の錘３５により行っている。
この錘３５は、内周に設けた雌ネジ３５１を、第２腕部３４の外周に設けた雄ネジ３４１に螺合させて、第２腕部３４に取り付けられており、錘３５は、第２腕部３４の長手方向における任意の位置に配置できるようになっている。 In the restricting member 3 according to the embodiment, the stopper portion 33 is arranged at the blocking position by a cylindrical weight 35 attached to the second arm portion 34.
The weight 35 is attached to the second arm portion 34 by screwing a female screw 351 provided on the inner periphery with a male screw 341 provided on the outer periphery of the second arm portion 34. The two arms 34 can be arranged at arbitrary positions in the longitudinal direction.

規制部材３では、第２腕部３４に錘３５を取り付けることで、連結部３１を中心として、第２腕部３４側を下方に移動させると共に、第１腕部３２側を上方に移動させる方向の応力（回転力）を発生させている。そのため、規制部材３には、回転軸Ｘ１を中心として規制部材３を回転させる応力（図中、時計回り方向に回転させる回転力）が、錘３５により、常時作用している。   In the regulating member 3, the weight 35 is attached to the second arm portion 34, whereby the second arm portion 34 side is moved downward and the first arm portion 32 side is moved upward around the connecting portion 31. The stress (rotational force) is generated. Therefore, a stress that rotates the regulating member 3 around the rotation axis X <b> 1 (rotational force that rotates clockwise in the drawing) acts on the regulating member 3 constantly by the weight 35.

ここで、回転軸Ｘ１を中心として規制部材３が図中時計回り方向に回転すると、第１腕部３２の先端に固定したストッパ部３３が、ワーク１０Ａ、１０Ｂの搬送を阻止する阻止位置に向けて変位する。実施の形態では、第２腕部３４における錘３５の位置と、第１腕部３２に固定されたストッパ部３３の第１腕部３２との交差角θとを調整することで、ストッパ部３３が、阻止位置に適切に配置されるようにしている。   Here, when the regulating member 3 rotates in the clockwise direction in the drawing around the rotation axis X1, the stopper portion 33 fixed to the tip of the first arm portion 32 is directed to a blocking position that prevents the workpieces 10A and 10B from being conveyed. To displace. In the embodiment, the stopper portion 33 is adjusted by adjusting the position of the weight 35 in the second arm portion 34 and the crossing angle θ between the first arm portion 32 of the stopper portion 33 fixed to the first arm portion 32. However, it is arranged appropriately at the blocking position.

第１腕部３２では、長手方向における連結部３１寄りの位置に、有頭のボルト３６が取り付けられている。
ボルト３６は、第１腕部３２の下側から、第１腕部３２を厚み方向に貫通して設けられており、このボルト３６の軸部３６２に螺合したナット３７により、第１腕部３２からの脱落が阻止された状態で、第１腕部３２に固定されている。 In the 1st arm part 32, the headed bolt 36 is attached to the position near the connection part 31 in a longitudinal direction.
The bolt 36 is provided from the lower side of the first arm portion 32 so as to penetrate the first arm portion 32 in the thickness direction, and a first arm portion is screwed by a nut 37 screwed into the shaft portion 362 of the bolt 36. It is fixed to the first arm portion 32 in a state in which it is prevented from falling off.

ボルト３６の軸部３６２は、当該軸部３６２の先端部３６２ａが、解除部材４の腕部４２の下面４２ｂに当接する長さＬ１を有しており、解除部材４の腕部４２は、当該腕部４２の下面に当接したボルト３６により、回転軸Ｘ２周りの周方向における角度位置が決められている。
実施の形態では、規制部材３のストッパ部３３が前記した阻止位置に配置された際に、ボルト３６により押された解除部材４が、当該解除部材４の腕部４２の先端部４２ａ側を、搬送されるワーク１０Ａの軸部１２Ａにのみ接触し、搬送されるワーク１０Ｂの軸部１２Ｂに接触しない位置に配置させるようになっている。 The shaft portion 362 of the bolt 36 has a length L1 where the tip portion 362a of the shaft portion 362 contacts the lower surface 42b of the arm portion 42 of the release member 4, and the arm portion 42 of the release member 4 The angular position in the circumferential direction around the rotation axis X2 is determined by the bolt 36 that is in contact with the lower surface of the arm portion 42.
In the embodiment, when the stopper portion 33 of the regulating member 3 is arranged at the above-described blocking position, the release member 4 pushed by the bolt 36 moves the tip end 42 a side of the arm portion 42 of the release member 4. Only the shaft portion 12A of the workpiece 10A to be conveyed is brought into contact with the shaft portion 12B of the workpiece 10B to be conveyed.

解除部材４は、規制部材３の回転軸Ｘ１（揺動軸）に対して平行、かつ回転軸Ｘ１よりも上側（搬送レール２１、２２側）に設定された回転軸Ｘ２で揺動可能に設けられている。
解除部材４は、回転軸Ｘ２の軸方向に沿う軸部５２に外挿されたリング状の連結部４１と、連結部４１の外周から回転軸Ｘ２の径方向に直線状に延びる腕部４２と、を有している。
解除部材４は、ワーク１０Ａ、１０Ｂの搬送方向における回転軸Ｘ２の下流側に、腕部４２を位置させており、この状態において腕部４２は、前記した規制部材３の第１腕部３２よりも搬送レール２１、２２側の位置で、回転軸Ｘ２を中心として揺動可能に設けられている。 The release member 4 is provided so as to be swingable by a rotation axis X2 set parallel to the rotation axis X1 (swing axis) of the regulating member 3 and above the rotation axis X1 (on the side of the transport rails 21 and 22). It has been.
The release member 4 includes a ring-shaped connecting portion 41 that is extrapolated to a shaft portion 52 along the axial direction of the rotation axis X2, and an arm portion 42 that extends linearly from the outer periphery of the connecting portion 41 in the radial direction of the rotating shaft X2. ,have.
The release member 4 has an arm portion 42 positioned downstream of the rotation axis X2 in the conveying direction of the workpieces 10A and 10B. In this state, the arm portion 42 is more than the first arm portion 32 of the restriction member 3 described above. Is also provided at the position on the side of the transport rails 21 and 22 so as to be swingable about the rotation axis X2.

解除部材４の回転軸Ｘ２（揺動軸）は、搬送されるワーク１０Ａとの干渉を避けるために、ワーク１０Ａの軸部１２Ａの下端１２Ａ１の移動軌跡を示す線分Ｌｎよりも下側に設定されている。
この解除部材４の回転軸Ｘ２は、ワーク１０Ａ、１０Ｂの搬送方向における規制部材３の回転軸Ｘ１）よりも上流側に位置しており、下流側に向けた腕部４２が、前記した規制部材３のボルト３６に載置されている。 The rotation axis X2 (swing axis) of the release member 4 is set below the line segment Ln indicating the movement locus of the lower end 12A1 of the shaft portion 12A of the workpiece 10A in order to avoid interference with the workpiece 10A being conveyed. Has been.
The rotation axis X2 of the release member 4 is located upstream of the rotation axis X1) of the regulating member 3 in the conveying direction of the workpieces 10A and 10B, and the arm portion 42 directed toward the downstream side is the regulating member described above. 3 bolts 36.

この状態において解除部材４は、腕部４２の先端部４２ａを、ワーク１０Ａの軸部１２Ａの下端１２Ａ１の移動軌跡を示す線分Ｌｎよりも上側であって、ワーク１０Ｂの軸部１２Ｂの下端１２Ｂ１の移動軌跡を示す線分Ｌｍよりも下側に位置させている。
そのため、搬送されるワーク１０Ａ、１０Ｂのうち、ワーク１０Ａの軸部１２Ａのみが、解除部材４と接触するようになっている。 In this state, the release member 4 is such that the distal end portion 42a of the arm portion 42 is above the line segment Ln indicating the movement locus of the lower end 12A1 of the shaft portion 12A of the workpiece 10A, and the lower end 12B1 of the shaft portion 12B of the workpiece 10B. It is located below the line segment Lm indicating the movement locus.
Therefore, only the shaft portion 12A of the workpiece 10A among the workpieces 10A and 10B to be conveyed comes into contact with the release member 4.

ここで、解除部材４の腕部４２は、搬送されるワーク１０Ａの軸部１２Ａが接触したのち、ワーク１０Ａが下流側にさらに移動すると、軸部１２Ａにより押されて、回転軸Ｘ２を中心として、腕部４２を下方に移動させる方向（図中、反時計回り方向）に回転する。
その結果、腕部４２の先端部４２ａ側が、基準位置（搬送レール２１、２２の載置面）から離れる方向（図中、下方向）に変位することになる。 Here, the arm portion 42 of the release member 4 is pushed by the shaft portion 12A when the workpiece 10A further moves downstream after the shaft portion 12A of the workpiece 10A to be conveyed comes into contact with the rotation member XA. The arm portion 42 rotates in the direction of moving downward (counterclockwise direction in the figure).
As a result, the distal end portion 42a side of the arm portion 42 is displaced in a direction (downward in the drawing) away from the reference position (placement surface of the transport rails 21 and 22).

そうすると、解除部材４の腕部４２にボルト３６を当接させた規制部材３が、解除部材４の回転軸Ｘ２回りの回転に伴って回転軸Ｘ１回りに回転する結果、第１腕部３２の先端部３２ａに固定されたストッパ部３３が、ワーク１０Ａ、１０Ｂの下流側への移動を阻止する阻止位置（図１の（ａ）参照）から、下側の非阻止位置（図２の（ｃ）参照）まで変位して、搬送されるワーク１０Ａの下流側への移動が、ストッパ部３３により阻止されない状態となる。   Then, as a result of the restriction member 3 having the bolt 36 in contact with the arm portion 42 of the release member 4 rotating about the rotation axis X1 as the release member 4 rotates about the rotation axis X2, the first arm portion 32 The stopper portion 33 fixed to the distal end portion 32a prevents the workpieces 10A and 10B from moving downstream (see (a) of FIG. 1) to the lower non-blocking position ((c of FIG. 2). )) And the downstream movement of the workpiece 10A to be conveyed is not blocked by the stopper portion 33.

以下、仕分け機構１の動作を説明する。
図２は、仕分け機構１の動作を説明する図であり、（ａ）は、搬送装置２で搬送されるワーク１０Ａが、仕分け機構１の解除部材４の腕部４２に接触する前の状態を示す図であり、（ｂ）は、ワーク１０Ａの軸部１２Ａが、仕分け機構１の解除部材４の腕部４２に接触する位置まで到達した状態を示す図であり、（ｃ）は、ワーク１０Ａの軸部１２Ａが、解除部材４の腕部４２に接触する位置を通過した状態を示す図である。
図３は、仕分け機構１の動作を説明する図であり、（ａ）は、搬送装置２で搬送されるワーク１０Ａが、仕分け機構１を通過した直後の状態を示す図であり、（ｂ）は、ワーク１０Ｂの軸部１２Ｂが、仕分け機構１の解除部材４の腕部４２（先端部４２ａ）の上方まで到達した状態を示す図であり、（ｃ）は、ワーク１０Ｂの下流側への移動が、規制部材３により阻止されている状態を示す図である。 Hereinafter, the operation of the sorting mechanism 1 will be described.
FIG. 2 is a diagram for explaining the operation of the sorting mechanism 1. FIG. 2A shows a state before the workpiece 10 </ b> A conveyed by the conveying device 2 contacts the arm portion 42 of the release member 4 of the sorting mechanism 1. (B) is a figure which shows the state which reached | attained the position where the axial part 12A of the workpiece | work 10A contacted the arm part 42 of the cancellation | release member 4 of the sorting mechanism 1, (c) is a figure which shows workpiece | work 10A. It is a figure which shows the state which passed 12A of shaft parts of this to the position which contacts the arm part 42 of the cancellation | release member 4. FIG.
FIG. 3 is a diagram for explaining the operation of the sorting mechanism 1. FIG. 3A is a diagram showing a state immediately after the workpiece 10A transported by the transporting device 2 passes through the sorting mechanism 1. FIG. These are figures which show the state which the axial part 12B of the workpiece | work 10B reached | attained above the arm part 42 (front-end | tip part 42a) of the cancellation | release member 4 of the sorting mechanism 1, (c) is a figure to the downstream of the workpiece | work 10B. It is a figure which shows the state from which the movement is blocked | prevented by the control member.

搬送装置２でワーク１０Ａを搬送すると、搬送されるワーク１０Ａの軸部１２Ａの下端１２Ａ１は、解除部材４の腕部４２に接触する高さ位置（線分Ｌｎ参照）を、搬送方向における上流側から下流側に向けて移動する。
そのため、ワーク１０Ａが仕分け機構１まで到達すると、軸部１２Ａの下端１２Ａ１が解除部材４の腕部４２に接触することになる（図２の（ｂ）参照）。
ここで、解除部材４は回転軸Ｘ２回りに揺動可能に設けられているので、軸部１２Ａが腕部４２に接触したのちに引き続きワーク１０Ａが移動すると、腕部４２の先端部４２ａ側が、軸部１２Ａにより押されて、回転軸Ｘ２回りの周方向（反時計回り方向）で、下方に変位することになる（図２の（ｂ）、矢印Ａ参照）。 When the workpiece 10A is conveyed by the conveying device 2, the lower end 12A1 of the shaft portion 12A of the workpiece 10A to be conveyed is positioned at the height position (see the line segment Ln) contacting the arm portion 42 of the release member 4 on the upstream side in the conveying direction. Move toward the downstream side.
For this reason, when the workpiece 10A reaches the sorting mechanism 1, the lower end 12A1 of the shaft portion 12A comes into contact with the arm portion 42 of the release member 4 (see FIG. 2B).
Here, since the release member 4 is provided so as to be swingable around the rotation axis X2, when the workpiece 10A continues to move after the shaft portion 12A contacts the arm portion 42, the tip end portion 42a side of the arm portion 42 is It is pushed by the shaft portion 12A and is displaced downward in the circumferential direction (counterclockwise direction) around the rotation axis X2 (see arrow A in FIG. 2B).

そうすると、腕部４２の先端部４２Ａの下方への変位に伴って、規制部材３のボルト３６が、腕部４２により下方に押されるので、このボルトが固定された第１腕部３２は、回転軸Ｘ１回りの周方向（図中、反時計回り方向）に回転することになる（図２の（ｂ）、矢印Ｂ参照）。
その結果、この規制部材３の反時計回り方向の回転に伴って、第１腕部３２の先端部３２ａに固定されたストッパ部３３が下方に変位し、ストッパ部３３は、ワーク１０Ａの移動を阻止する阻止位位置から、ワーク１０Ａの移動を阻止しない非阻止位置まで移動することになる。 Then, as the distal end portion 42A of the arm portion 42 is displaced downward, the bolt 36 of the regulating member 3 is pushed downward by the arm portion 42, so that the first arm portion 32 to which the bolt is fixed rotates. It will rotate in the circumferential direction (counterclockwise direction in the figure) around the axis X1 (see arrow B in FIG. 2B).
As a result, as the restriction member 3 rotates counterclockwise, the stopper portion 33 fixed to the distal end portion 32a of the first arm portion 32 is displaced downward, and the stopper portion 33 moves the workpiece 10A. It moves from the blocking position to block to the non-blocking position that does not block the movement of the workpiece 10A.

これにより、ストッパ部３３が、ワーク１０Ａの軸部１２Ａと接触しない位置に配置されるので、搬送装置２で搬送されるワーク１０Ａは、仕分け機構１を通過して、下流側に向けて移動することになる（図２の（ｃ）参照）。   Thereby, since the stopper part 33 is arrange | positioned in the position which does not contact the axial part 12A of the workpiece | work 10A, the workpiece | work 10A conveyed with the conveying apparatus 2 passes the sorting mechanism 1, and moves toward a downstream side. (Refer to FIG. 2C).

そして、ワーク１０Ａが仕分け機構１を通過して、ストッパ部３３の先端部３３ａとワーク１０Ａの軸部１２Ａとの接触が解消されると、規制部材３の第１腕部３２を下方に押圧する押圧力もまた解消される。
そうすると、規制部材３には、第２腕部３４に設けた錘３５により、当該規制部材３を回転軸Ｘ２回りの時計回り方向に回転させる応力が作用しているので、第２腕部３４が下方に移動する（図３の（ａ）、矢印Ａ参照）と共に、第１腕部３２が上方に移動する（図３の（ａ）、矢印Ｂ参照）ことになる。
これにより、規制部材３は、ストッパ部３３が阻止位置に配置されるまで、回転軸Ｘ１を中心として時計回り方向に回転すると共に、この規制部材３の回転に伴って、上方に変位する第１腕部３２のボルト３６が、解除部材４の腕部４２を上方に変位させることになる（図３の（ａ）、矢印Ｃ参照）。
そして、上方に変位させられた腕部４２は、当該腕部４２の先端部４２ａが、搬送されるワーク１０Ａの軸部１２Ａにのみ接触し、搬送されるワーク１０Ｂの軸部１２Ｂに接触しない位置に配置されることになる（図３の（ｂ）参照）。 Then, when the workpiece 10A passes through the sorting mechanism 1 and the contact between the distal end portion 33a of the stopper portion 33 and the shaft portion 12A of the workpiece 10A is eliminated, the first arm portion 32 of the regulating member 3 is pressed downward. The pressing force is also eliminated.
As a result, stress that rotates the regulating member 3 in the clockwise direction around the rotation axis X <b> 2 acts on the regulating member 3 by the weight 35 provided on the second arm 34. The first arm portion 32 moves upward (see FIG. 3A and arrow B) as it moves downward (see FIG. 3A, arrow A).
Thus, the restricting member 3 rotates in the clockwise direction about the rotation axis X1 until the stopper portion 33 is disposed at the blocking position, and is displaced upward as the restricting member 3 rotates. The bolt 36 of the arm portion 32 displaces the arm portion 42 of the release member 4 upward (see arrow C in FIG. 3A).
The arm portion 42 displaced upward is a position where the tip end portion 42a of the arm portion 42 contacts only the shaft portion 12A of the workpiece 10A to be conveyed and does not contact the shaft portion 12B of the workpiece 10B to be conveyed. (See FIG. 3B).

このワーク１０Ａの後方のワーク１０Ｂは、当該ワーク１０Ｂの軸部１２Ｂの下端１２Ｂ１が、解除部材４の腕部４２に接触しない高さ位置（線分Ｌｍ参照）を、搬送方向における上流側から下流側に向けて移動する。
そのため、ワーク１０Ｂが解除部材４の腕部４２の上方まで到達しても、軸部１２Ｂの下端１２Ｂ１が解除部材４の腕部４２に接触しないので、解除部材４の腕部４２が回転軸Ｘ２を中心とした反時計回り方向に回転することもない。 The workpiece 10B behind the workpiece 10A has a height position where the lower end 12B1 of the shaft portion 12B of the workpiece 10B is not in contact with the arm portion 42 of the release member 4 (see the line segment Lm) from the upstream side in the transport direction. Move towards the side.
Therefore, even if the workpiece 10B reaches above the arm portion 42 of the release member 4, the lower end 12B1 of the shaft portion 12B does not come into contact with the arm portion 42 of the release member 4, so that the arm portion 42 of the release member 4 rotates the rotation axis X2. It does not rotate counterclockwise around the center.

そのため、ワーク１０Ｂが下流側に向けてさらに移動すると、規制部材３のストッパ部３３が、ワーク１０Ｂの軸部１２Ｂに接触する位置（阻止位置）に配置されているので、ワーク１０Ｂの下流側への移動が、ストッパ部３３により阻止されることになる（図３の（ｃ）参照）。   Therefore, when the workpiece 10B further moves toward the downstream side, the stopper portion 33 of the regulating member 3 is disposed at a position (blocking position) that contacts the shaft portion 12B of the workpiece 10B. Is prevented by the stopper 33 (see FIG. 3C).

このように、軸部１２Ａ、１２Ｂの長さが異なるワーク１０Ａ、１０Ｂが混在して搬送されることのある搬送装置２に、仕分け機構１を設けることで、目的とするワーク１０Ａのみを、選択的に通過させることができる。   In this way, by providing the sorting mechanism 1 in the transport device 2 in which the workpieces 10A and 10B having different lengths of the shaft portions 12A and 12B are transported in a mixed manner, only the target workpiece 10A is selected. Can be passed through.

以上の通り、実施の形態では
（１）搬送装置２に付設されて、搬送装置２の搬送路２０に沿って搬送されるワーク１０Ａ、１０Ｂのうち、搬送路２０上の基準位置（搬送レール２１、２２の載置面）を基準とした所定方向におけるワーク１０Ａ、１０Ｂの軸部１２Ａ、１２Ｂの下端１２Ａ１、１２Ｂ１（所定部位）までの長さＬ１、Ｌ２が、仕分け用の基準長さＬ２よりも長いワーク１０Ａ（対象ワーク）を通過させ、基準長さＬ２以下であるワーク１０Ｂ（対象外ワーク）の通過を阻止する仕分け機構１であって、
搬送路２０の外に設定した回転軸Ｘ１（第１回転軸）で揺動可能に支持されていると共に、回転軸Ｘ１の径方向に所定長さを有する第１腕部３２（腕部）に設けたストッパ部３３が、ワーク１０Ａ、１０Ｂの搬送方向における回転軸Ｘ１よりも下流側で、搬送されるワーク１０Ａ、１０Ｂの移動を阻止する阻止位置と、移動を阻止しない非阻止位置との間で変位可能とされた規制部材３と、
回転軸Ｘ１に対して平行、かつ回転軸Ｘ１よりも搬送路２０側に設けられた回転軸Ｘ２（第２回転軸）で揺動可能に支持されていると共に、回転軸Ｘ２の径方向に所定長さを有する腕部４２の先端部４２ａ側を、回転軸Ｘ２よりも下流側で、規制部材３の腕部４２よりも搬送路２０側に配置した解除部材４（作動部材）と、
ストッパ３３部を阻止位置に配置させる方向の回転力を規制部材３に作用させる回転力作用機構（第２腕部３４、錘３５）と、
規制部材３の第１腕部３２において、ストッパ部３３よりも回転軸Ｘ１側に設けられていると共に、解除部材４の腕部４２に先端部３６２ａを当接させたボルト３６（当接部材）と、を有し、
規制部材３が、回転力作用機構から作用する回転力で、ストッパ部３３を阻止位置に配置させる回転軸Ｘ１回りの角度位置に配置された状態で、解除部材４の腕部４２を、当該腕部４２に当接させたボルト３６により、搬送路２０に沿って搬送されるワーク１０Ａ、１０Ｂのうち、基準位置からワーク上の所定部位までの長さが仕分け用の基準長さ以上であるワーク１０Ａ（対象ワーク）に接触する位置に配置して、ワーク１０Ａ（対象ワーク）の移動によって、解除部材４が回転軸Ｘ２回りに回転した際に、回転軸Ｘ２周りの周方向に変位するボルト３６が、規制部材３を回転軸Ｘ１回りに回転させて、ストッパ部３３を非阻止位置まで変位させることができるようにした。 As described above, in the embodiment, (1) of the workpieces 10A and 10B attached to the transport device 2 and transported along the transport path 20 of the transport device 2, the reference position on the transport path 20 (the transport rail 21). The lengths L1 and L2 to the lower ends 12A1 and 12B1 (predetermined portions) of the shaft portions 12A and 12B of the workpieces 10A and 10B in a predetermined direction with reference to the mounting surface 22) than the reference length L2 for sorting. Is a sorting mechanism 1 that passes a long workpiece 10A (target workpiece) and prevents the passage of a workpiece 10B (non-target workpiece) having a reference length L2 or less,
The first arm portion 32 (arm portion) is supported by a rotation shaft X1 (first rotation shaft) set outside the conveyance path 20 so as to be swingable and has a predetermined length in the radial direction of the rotation shaft X1. Between the blocking position where the provided stopper portion 33 blocks the movement of the workpieces 10A, 10B being conveyed and the non-blocking position where the movement is not blocked, downstream of the rotation axis X1 in the conveyance direction of the workpieces 10A, 10B. A regulating member 3 that is displaceable by
A rotary shaft X2 (second rotary shaft) provided parallel to the rotary shaft X1 and closer to the conveyance path 20 than the rotary shaft X1 is supported so as to be able to swing, and predetermined in the radial direction of the rotary shaft X2. A release member 4 (actuating member) disposed on the distal end portion 42a side of the arm portion 42 having a length on the downstream side of the rotation axis X2 and on the transport path 20 side of the arm portion 42 of the regulating member 3;
A rotational force acting mechanism (second arm 34, weight 35) that acts on the regulating member 3 in the direction in which the stopper 33 is disposed at the blocking position;
In the first arm portion 32 of the restricting member 3, a bolt 36 (abutting member) provided on the rotation axis X 1 side of the stopper portion 33 and having the tip portion 362 a abutted against the arm portion 42 of the release member 4. And having
In a state where the regulating member 3 is disposed at an angular position around the rotation axis X1 that causes the stopper portion 33 to be disposed at the blocking position by the rotational force acting from the rotational force acting mechanism, the arm portion 42 of the release member 4 is Among the workpieces 10A and 10B conveyed along the conveying path 20 by the bolt 36 brought into contact with the portion 42, the workpiece having a length from the reference position to a predetermined portion on the workpiece is equal to or larger than the reference length for sorting. A bolt 36 that is disposed at a position in contact with 10A (target workpiece) and is displaced in the circumferential direction around the rotation axis X2 when the release member 4 rotates around the rotation axis X2 by the movement of the workpiece 10A (target workpiece). However, the restricting member 3 is rotated about the rotation axis X1 so that the stopper portion 33 can be displaced to the non-blocking position.

このように構成すると、搬送路２０に沿って搬送されるワーク１０Ａ、１０Ｂのうち、基準位置（搬送レール２１、２２の載置面）からワーク１０Ａ、１０Ｂの軸部１２Ａ、１２Ｂの下端１２Ａ１、１２Ｂ１までの長さが、仕分け用の基準長さＬ２よりも長い軸部１２Ａを有するワーク１０Ａ（対象ワーク）は、解除部材４の腕部４２の先端部４２ａ側に接触して、解除部材４を回転軸Ｘ２回りに反時計回り方向に回転させる（図２の（ｂ）参照）。
そうすると、規制部材３は、解除部材４の腕部４２に当接させたボルト３６から作用する押圧力で、回転軸Ｘ１回りに反時計回り方向に回転して、第１腕部３２に設けたストッパ部３３が、搬送されるワーク１０Ａ、１０Ｂの移動を阻止する阻止位置から、移動を阻止しない非阻止位置まで変位するので、ワーク１０Ａは、仕分け機構１を通過する。
一方、ワーク１０Ｂは、解除部材４の腕部４２の先端部４２ａ側に接触しないので、規制部材３が解除部材４により押されて回転軸Ｘ１回りに反時計回り方向に回転することがない（図３の（ｂ）、（ｃ）参照）。
そのため、規制部材３のストッパ部３３は、搬送されるワーク１０Ａ、１０Ｂの移動を阻止する阻止位置に保持されたままとなるので、ワーク１０Ｂは、ストッパ部３３により下流側への移動が規制されて、仕分け機構１を通過できない（図３の（ｃ）参照）。
よって、対象ワークであるワーク１０Ａのみを通過させて、取り出すことができる。
そのため、軸部の長さが所定寸法以上のワークのみを投入すべきラインに、軸部の長さが所定寸法未満であるワークが誤って投入された場合であっても、所定寸法未満のワークが下流側の工程などに搬送されることを好適に防止できる。 If comprised in this way, among the workpiece | work 10A, 10B conveyed along the conveyance path 20, from the reference | standard position (the mounting surface of the conveyance rails 21 and 22), the lower end 12A1 of the shaft parts 12A and 12B of the workpieces 10A and 10B, The workpiece 10A (target workpiece) having the shaft portion 12A whose length up to 12B1 is longer than the reference length L2 for sorting comes into contact with the distal end portion 42a side of the arm portion 42 of the release member 4, and the release member 4 Is rotated counterclockwise about the rotation axis X2 (see FIG. 2B).
Then, the restricting member 3 is provided on the first arm portion 32 by rotating counterclockwise around the rotation axis X <b> 1 with a pressing force acting from the bolt 36 brought into contact with the arm portion 42 of the release member 4. Since the stopper portion 33 is displaced from the blocking position where the movement of the conveyed workpieces 10A and 10B is blocked to the non-blocking position where the movement is not blocked, the workpiece 10A passes through the sorting mechanism 1.
On the other hand, since the workpiece 10B does not contact the distal end portion 42a side of the arm portion 42 of the release member 4, the regulating member 3 is not pushed by the release member 4 and rotates counterclockwise around the rotation axis X1 ( (See (b) and (c) of FIG. 3).
For this reason, the stopper portion 33 of the regulating member 3 remains held at the blocking position for preventing the movement of the conveyed workpieces 10A and 10B, so that the workpiece 10B is restricted from moving downstream by the stopper portion 33. Thus, it cannot pass through the sorting mechanism 1 (see FIG. 3C).
Therefore, only the workpiece 10A that is the target workpiece can be passed through and taken out.
For this reason, even if a workpiece with a shaft length less than the predetermined dimension is mistakenly inserted into a line where only a workpiece with a shaft length longer than the predetermined dimension is to be loaded, Can be suitably prevented from being conveyed to a downstream process or the like.

（２）対象ワークは、搬送路２０から下方に突出した軸部１２Ａの下端１２Ａ１までの長さが、前記基準長さＬ２よりも長いワーク１０Ａであり、
回転軸Ｘ１と、回転軸Ｘ２は、搬送路２０の下側で、ワーク１０Ａ、１０Ｂの搬送方向に直交する水平な回転軸である構成とした。 (2) The target workpiece is a workpiece 10A in which the length from the conveyance path 20 to the lower end 12A1 of the shaft portion 12A protruding downward is longer than the reference length L2.
The rotation axis X1 and the rotation axis X2 are configured to be horizontal rotation axes below the conveyance path 20 and orthogonal to the conveyance direction of the workpieces 10A and 10B.

このように構成すると、仕分け機構１を搬送路２０の下側に設けることができるので、仕分け機構１を設けるためのスペースを別途用意する必要が無い。
また、規制部材３の第１腕部３２に設けたボルト３６に、解除部材４の腕部４２が載置された状態になるので、規制部材３の第１腕部３２の回転軸Ｘ１回りの角度位置を調節するだけで、解除部材４の腕部４２の先端部４２ａ側の位置を調節できる。これにより、解除部材４の腕部４２の先端部４２ａ側を、搬送されるワーク１０Ａ、１０Ｂのうち、目的のワーク１０Ａの軸部１２Ａにのみ接触する位置により簡単に配置させることができる。 If comprised in this way, since the sorting mechanism 1 can be provided under the conveyance path 20, it is not necessary to prepare the space for providing the sorting mechanism 1 separately.
Further, since the arm portion 42 of the release member 4 is placed on the bolt 36 provided on the first arm portion 32 of the restriction member 3, the rotation around the rotation axis X <b> 1 of the first arm portion 32 of the restriction member 3 is achieved. Only by adjusting the angular position, the position of the arm portion 42 of the release member 4 on the tip end portion 42a side can be adjusted. Thereby, the front-end | tip part 42a side of the arm part 42 of the cancellation | release member 4 can be easily arrange | positioned by the position which contacts only the axial part 12A of the target workpiece | work 10A among the workpiece | work 10A, 10B conveyed.

（３）規制部材３は、回転軸Ｘ１を挟んだ第１腕部３２の反対側に、回転軸Ｘ１の径方向に直線状に延びる第２腕部３４（軸部）と、当該第２腕部３４に取り付けられた錘３５とをさらに有しており、第２腕部３４と錘３５とで、回転力作用機構を構成しているものとした。 (3) The regulating member 3 includes a second arm portion 34 (shaft portion) linearly extending in the radial direction of the rotation axis X1 and the second arm on the opposite side of the first arm portion 32 across the rotation axis X1. The weight 35 attached to the portion 34 is further included, and the second arm portion 34 and the weight 35 constitute a rotational force acting mechanism.

このように構成すると、規制部材３では、連結部３１（回転軸Ｘ１）を中心として、第２腕部３４側を下方に移動させると共に、第１腕部３２側を上方に移動させる方向の応力（回転力）が作用するので、規制部材３には、当該規制部材３を回転軸Ｘ１回りの時計回り方向に回転させる応力（回転力）が常時作用することになる。
よって、ワーク１０Ａの軸部１２Ａと、解除部材４の腕部４２との接触が解消されて、解除部材４からボルト３６を介して規制部材３に作用していた回転力であって、ストッパ部３３を非阻止位置に向けて移動させる方向の回転力が解消すると、規制部材３は、錘３５により生じさせた回転力で、ストッパ部３３を阻止位置に向けて速やかに変位させる。
よって、搬送路２０で複数のワークが連なって搬送されている場合に、対象外ワーク（ワーク１０Ｂ）が、対象ワーク（ワーク１０Ａ）と共に下流側に移動する事態の発生を、寄り好適に防止できる。 If comprised in this way, in the control member 3, while the 2nd arm part 34 side is moved below centering | focusing on the connection part 31 (rotating axis X1), the stress of the direction which moves the 1st arm part 32 side upwards Since (rotational force) acts, the regulating member 3 is always subjected to stress (rotational force) that rotates the regulating member 3 in the clockwise direction around the rotation axis X1.
Therefore, the contact between the shaft portion 12A of the workpiece 10A and the arm portion 42 of the release member 4 is eliminated, and the rotational force acting on the restriction member 3 from the release member 4 via the bolt 36 is the stopper portion. When the rotational force in the direction in which 33 is moved toward the non-blocking position is eliminated, the regulating member 3 quickly displaces the stopper portion 33 toward the blocking position by the rotational force generated by the weight 35.
Therefore, when a plurality of workpieces are conveyed in series on the conveyance path 20, it is possible to favorably prevent the occurrence of a situation where the non-target workpiece (work 10B) moves downstream together with the target workpiece (work 10A). .

（４）ストッパ部３３は、規制部材３の第１腕部３２に固定されていると共に、第１腕部３２との交差角を変更可能とされており、
錘３５は、第２腕部３４外周に螺合して設けられていると共に、第２腕部３４の長手方向の位置が変更可能とされている構成とした。 (4) The stopper portion 33 is fixed to the first arm portion 32 of the restricting member 3, and the crossing angle with the first arm portion 32 can be changed.
The weight 35 is provided so as to be screwed to the outer periphery of the second arm portion 34 and the position of the second arm portion 34 in the longitudinal direction can be changed.

このように構成すると、基準位置を基準とした所定方向におけるストッパ部３３の先端部３３ａの位置を微調整することができるので、対象ワーク（ワーク１０Ａ）にのみ接触する位置に、ストッパ部３３を適切に配置できる。   If comprised in this way, since the position of the front-end | tip part 33a of the stopper part 33 in the predetermined direction on the basis of the reference position can be finely adjusted, the stopper part 33 is placed at a position that contacts only the target work (work 10A). Can be placed properly.

以下、変形例にかかる仕分け機構１Ａを説明する。
図４は、変形例にかかる仕分け機構１Ａを説明する図であって、（ａ）は、搬送装置２０Ａを、上方から見た状態を模式的に示す図であって、搬送装置２で搬送されるワーク１０Ａが、仕分け機構１の解除部材４の腕部４２に接触する前の状態を示す図であり、（ｂ）は、（ａ）におけるＡ−Ａ断面図である。
図５は、仕分け機構１Ａの動作を説明する図であり、（ａ）は、ワーク１０Ｃが仕分け機構１Ａを通過する際の規制部材３と解除部材４の位置を示した図であり、（ｂ）は、ワーク１０Ｄの仕分け機構１Ａの通過が阻止される際の規制部材３と解除部材４の位置を示した図である。
なお、以下の説明においては、前記した仕分け機構１と異なる点について主に説明する。 Hereinafter, the sorting mechanism 1A according to the modification will be described.
4A and 4B are diagrams for explaining a sorting mechanism 1A according to a modified example, and FIG. 4A is a diagram schematically showing a state in which the transport device 20A is viewed from above, and is transported by the transport device 2. FIG. It is a figure which shows the state before the workpiece | work 10A which contacts the arm part 42 of the cancellation | release member 4 of the sorting mechanism 1, and (b) is AA sectional drawing in (a).
FIG. 5 is a diagram for explaining the operation of the sorting mechanism 1A. FIG. 5A is a diagram showing the positions of the regulating member 3 and the release member 4 when the workpiece 10C passes through the sorting mechanism 1A. ) Is a diagram showing the positions of the regulating member 3 and the releasing member 4 when the workpiece 10D is prevented from passing through the sorting mechanism 1A.
In the following description, differences from the above-described sorting mechanism 1 will be mainly described.

変形例に係る仕分け機構１Ａが付設される搬送装置２Ａは、上面に載置されたワークを搬送する搬送コンベア２３を有しており、この搬送コンベア２３の一側には、載置されるワーク１０Ｃ、１０Ｄの位置決め用のガイド壁２４が設けられている。
この搬送コンベア２３では、幅Ｗａが同じで高さの異なるワーク１０Ｃ、１０Ｄが搬送されるようになっており、仕分け機構１Ａは、搬送されるワーク１０Ｃ、１０Ｄのうち、搬送路２０の載置面２３ａに直交する方向の高さｈ１が、閾値高さｈｘよりも高い部位（当接部１３）を有するワーク１０Ｃのみを通過させ、有しないワーク１０Ｄの通過を阻止するために設けられている。 A transfer device 2A to which a sorting mechanism 1A according to a modification is attached has a transfer conveyor 23 for transferring a workpiece placed on the upper surface, and a workpiece placed on one side of the transfer conveyor 23 A guide wall 24 for positioning 10C and 10D is provided.
In this conveyor 23, workpieces 10C and 10D having the same width Wa and different heights are conveyed, and the sorting mechanism 1A places the conveying path 20 among the workpieces 10C and 10D to be conveyed. The height h1 in the direction orthogonal to the surface 23a is provided to pass only the workpiece 10C having a portion (contact portion 13) higher than the threshold height hx and to block the passage of the workpiece 10D that does not have it. .

変形例に係る仕分け機構１Ａは、搬送路２０Ａの下方ではなく、搬送路２０Ａの側方に配置されており、ワーク１０Ｃの下流側（図４の（ａ）における左側）への移動を規制する規制部材３と、この規制部材３による規制を解除する解除部材４と、を有している。   The sorting mechanism 1A according to the modified example is disposed not on the lower side of the transport path 20A but on the side of the transport path 20A, and restricts the movement of the workpiece 10C to the downstream side (the left side in FIG. 4A). It has a regulating member 3 and a release member 4 for releasing the regulation by the regulating member 3.

規制部材３は、ワーク１０Ｃ、１０Ｄの搬送方向に直交すると共に上下方向に延びる回転軸Ｘ３回りに揺動可能に設けられており、回転軸Ｘ３に沿う軸部５１に外挿されたリング状の連結部３１と、連結部３１の外周から回転軸Ｘ３の径方向に直線状に延びる第１腕部３２と、第１腕部３２の先端部３２ａに固定されたストッパ部３３と、連結部３１における第１腕部３２とは反対側の外周から、回転軸Ｘ３の径方向に直線状に延びる第２腕部３４と、を有している。   The restricting member 3 is provided so as to be swingable about a rotation axis X3 that is orthogonal to the conveying direction of the workpieces 10C and 10D and extends in the vertical direction, and is ring-shaped that is extrapolated to a shaft portion 51 along the rotation axis X3. The connecting portion 31, the first arm portion 32 linearly extending from the outer periphery of the connecting portion 31 in the radial direction of the rotation axis X3, the stopper portion 33 fixed to the distal end portion 32a of the first arm portion 32, and the connecting portion 31 And a second arm portion 34 extending linearly in the radial direction of the rotation axis X3 from the outer periphery opposite to the first arm portion 32.

規制部材３は、ワーク１０Ｃ、１０Ｄの搬送方向における回転軸Ｘ３よりも下流側に、第１腕部３２を位置させると共に、上流側に第２腕部３４を位置させて設けられており、この状態において第１腕部３２および第２腕部３４は、回転軸Ｘ３周りの周方向に揺動可能となっている。
そのため、第１腕部３２の先端部３２ａに固定されたストッパ部３３は、第１腕部３２の揺動に連動して、回転軸Ｘ３回りの周方向に変位するようになっている。 The regulating member 3 is provided with the first arm portion 32 positioned on the downstream side of the rotation axis X3 in the conveying direction of the workpieces 10C and 10D, and the second arm portion 34 positioned on the upstream side. In the state, the first arm portion 32 and the second arm portion 34 can swing in the circumferential direction around the rotation axis X3.
Therefore, the stopper portion 33 fixed to the distal end portion 32a of the first arm portion 32 is displaced in the circumferential direction around the rotation axis X3 in conjunction with the swing of the first arm portion 32.

実施の形態において規制部材３は、ストッパ部３３の先端部３３ａを、ガイド壁２４からワーク１０Ｃ、１０Ｄの幅Ｗａ分だけ離間した位置を通る線分Ｌｏよりもガイド壁２４側に配置して、ワーク１０Ｃ、１０Ｄの下流側への移動を阻止する位置（阻止位置、図４の（ａ）、（ｂ）参照）と、ストッパ部３３の先端部３３ａを、線分Ｌｏのガイド壁２４とは反対側に配置して、ワーク１０Ｃ、１０Ｄの下流側への移動を阻止しない位置（非阻止位置、図５の（ａ）参照）との間で、変位するようになっている。   In the embodiment, the regulating member 3 is arranged such that the distal end portion 33a of the stopper portion 33 is disposed on the guide wall 24 side with respect to the line segment Lo passing through a position separated from the guide wall 24 by the width Wa of the workpieces 10C and 10D. The position where the workpieces 10C and 10D are prevented from moving downstream (the blocking position, see FIGS. 4A and 4B) and the tip 33a of the stopper 33 are the guide wall 24 of the line segment Lo. It arrange | positions on the opposite side, and is displaced between the position which does not block the movement to the downstream of workpiece | work 10C, 10D (non-blocking position, (a) of FIG. 5).

図４の（ａ）に示すように、規制部材３では、ストッパ部３３の阻止位置への配置を、第２腕部３４に取り付けたスプリングＳｐにより行っている。
スプリングＳｐは、長手方向の一端が第１腕部３２に固定され、他端が固定側部材に固定されており、第１腕部３２側を搬送路２０Ａ側に変位させる方向の応力（回転力）を規制部材３に対して常時作用させている。 As shown in FIG. 4A, in the regulating member 3, the stopper portion 33 is arranged at the blocking position by a spring Sp attached to the second arm portion 34.
The spring Sp has one end in the longitudinal direction fixed to the first arm portion 32 and the other end fixed to the fixed-side member, and stress (rotational force) in a direction to displace the first arm portion 32 side toward the conveyance path 20A. ) Is always applied to the regulating member 3.

第１腕部３２では、長手方向における連結部３１寄りの位置に、有頭のボルト３６が取り付けられており、変形例に係る仕分け機構１Ａでは、前記した仕分け機構１の場合と同様に、規制部材３のストッパ部３３が阻止位置に配置された際に、ボルト３６により押された解除部材４が、当該解除部材４の腕部４２の先端部４２ａ側を、搬送されるワーク１０Ｃの当接部１３にのみ接触し、当接部１３のないワーク１０Ｂに接触しない位置に配置するようになっている。   In the first arm portion 32, a headed bolt 36 is attached at a position near the connecting portion 31 in the longitudinal direction. In the sorting mechanism 1A according to the modified example, as in the case of the sorting mechanism 1 described above, When the stopper portion 33 of the member 3 is arranged at the blocking position, the release member 4 pushed by the bolt 36 comes into contact with the workpiece 10C to be conveyed on the side of the distal end portion 42a of the arm portion 42 of the release member 4. It arrange | positions in the position which contacts only the part 13 and does not contact the workpiece | work 10B without the contact part 13. FIG.

解除部材４は、規制部材３の回転軸（回転軸Ｘ３）に対して平行な回転軸Ｘ４回りに揺動可能に設けられている。
解除部材４は、回転軸Ｘ４の軸方向に沿う軸部５２に外挿されたリング状の連結部４１と、連結部４１の外周から回転軸Ｘ４の径方向に延びる腕部４２と、を有している。
解除部材４は、ワーク１０Ｃ、１０Ｄの搬送方向における回転軸Ｘ４の下流側に、腕部４２を位置させており、この状態において腕部４２は、規制部材３の第１腕部３２よりも搬送コンベア２３のガイド壁２４側の位置で、回転軸Ｘ４回りの周方向に揺動可能に設けられている。 The release member 4 is provided so as to be swingable about a rotation axis X4 parallel to the rotation axis (rotation axis X3) of the regulating member 3.
The release member 4 includes a ring-shaped connecting portion 41 that is extrapolated to a shaft portion 52 along the axial direction of the rotation axis X4, and an arm portion 42 that extends from the outer periphery of the connecting portion 41 in the radial direction of the rotating shaft X4. doing.
The release member 4 has an arm portion 42 positioned downstream of the rotation axis X4 in the conveyance direction of the workpieces 10C and 10D. In this state, the arm portion 42 is conveyed more than the first arm portion 32 of the regulating member 3. It is provided at the position on the guide wall 24 side of the conveyor 23 so as to be swingable in the circumferential direction around the rotation axis X4.

以下、仕分け機構１Ａの動作を説明する。
解除部材４の腕部４２は、その先端部４２ａ側がワーク１０Ｃの当接部１３に接触する閾値高さｈｘ（図４の（ｂ）参照）に配置されているので、搬送コンベア２３で搬送されるワーク１０Ｃが、仕分け機構１Ａまで到達すると、ワーク１０Ｃの当接部１３が、解除部材４の腕部４２に接触することになる（図５の（ａ）参照）。
ここで、解除部材４は回転軸Ｘ４回りに回動可能に設けられているので、当接部１３が腕部４２に接触したのちに引き続きワーク１０Ｃが移動すると、腕部４２の先端部４２ａ側が、当接部１３により押されて、回転軸Ｘ４回りの反時計回り方向に回動することになる。これにより、腕部４２の先端部４２ａ側が、搬送コンベア２３（ガイド壁２４）から離れる側方に変位することになる（図５の（ａ）、矢印Ａ参照）。 Hereinafter, the operation of the sorting mechanism 1A will be described.
Since the arm portion 42 of the release member 4 is disposed at a threshold height hx (see FIG. 4B) where the tip end 42a side contacts the contact portion 13 of the workpiece 10C, the arm portion 42 is transported by the transport conveyor 23. When the workpiece 10C reaches the sorting mechanism 1A, the contact portion 13 of the workpiece 10C comes into contact with the arm portion 42 of the release member 4 (see FIG. 5A).
Here, since the release member 4 is provided so as to be rotatable about the rotation axis X4, when the workpiece 10C continues to move after the contact portion 13 contacts the arm portion 42, the tip end portion 42a side of the arm portion 42 is moved. Then, it is pushed by the contact portion 13 and rotates in the counterclockwise direction around the rotation axis X4. As a result, the distal end portion 42a side of the arm portion 42 is displaced laterally away from the conveyor 23 (guide wall 24) (see arrow A in FIG. 5A).

そうすると、腕部４２の側方への変位に伴って、規制部材３のボルト３６が、腕部４２により側方に押されるので、このボルトが固定された第１腕部３２は、回転軸Ｘ１回りに反時計回り方向に回動することになる（図５の（ａ）、矢印Ｂ参照）。
その結果、この規制部材３の反時計回り方向の回動に伴って、第１腕部３２の先端部３２ａに固定されたストッパ部３３が、搬送コンベア２３（ガイド壁２４）から離れる側方に変位し、ストッパ部３３は、ワーク１０Ｃの移動を阻止する阻止位位置から、ワーク１０Ｃの移動を阻止しない非阻止位置まで移動することになる（図２の（ｃ）、符号Ｂ参照）。 Then, as the arm portion 42 is displaced laterally, the bolt 36 of the restricting member 3 is pushed to the side by the arm portion 42, so that the first arm portion 32 to which the bolt is fixed has the rotation axis X <b> 1. It will turn counterclockwise (see FIG. 5A, arrow B).
As a result, as the restriction member 3 rotates counterclockwise, the stopper portion 33 fixed to the distal end portion 32a of the first arm portion 32 moves laterally away from the transport conveyor 23 (guide wall 24). As a result, the stopper 33 moves from a blocking position where the movement of the workpiece 10C is blocked to a non-blocking position where the movement of the workpiece 10C is not blocked (see (c) in FIG. 2, reference numeral B).

そして、ワーク１０Ｃが仕分け機構１Ａを通過して、解除部材４の腕部４２と、ワーク１０Ｃの当接部１３との接触が解消されると、規制部材３には、第２腕部３４に固定したスプリングＳｐにより、当該規制部材３を回転軸Ｘ３回りの時計回り方向に回転させる応力が作用しているので、第２腕部３４が搬送コンベア２３のガイド壁２４側に移動する（図３の（ａ）、矢印Ａ参照）ことになる。
これにより、規制部材３は、ストッパ部３３が阻止位置に配置されるまで、回転軸Ｘ３を中心として時計回り方向に回動すると共に、この規制部材３の回動に伴って、搬送コンベア２３２３のガイド壁２４側に変位する第１腕部３２のボルト３６が、解除部材４の腕部４２を、搬送コンベア２３のガイド壁２４側に変位させることになる（図５の（ｂ））。
そして、変位した腕部４２は、当該腕部４２の先端部４２ａが、搬送されるワーク１０Ｃの当接部１３に接触する位置に配置されることになる（図５の（ｂ）参照）。 Then, when the workpiece 10C passes through the sorting mechanism 1A and the contact between the arm portion 42 of the release member 4 and the contact portion 13 of the workpiece 10C is eliminated, the regulating member 3 has the second arm portion 34 attached thereto. Since the stress that rotates the regulating member 3 in the clockwise direction around the rotation axis X3 is applied by the fixed spring Sp, the second arm portion 34 moves to the guide wall 24 side of the conveyor 23 (FIG. 3). (See (a), arrow A).
As a result, the regulating member 3 rotates clockwise about the rotation axis X3 until the stopper portion 33 is disposed at the blocking position, and along with the rotation of the regulating member 3, the conveying conveyor 2323 is rotated. The bolt 36 of the first arm portion 32 that is displaced toward the guide wall 24 displaces the arm portion 42 of the release member 4 toward the guide wall 24 of the transport conveyor 23 ((b) in FIG. 5).
Then, the displaced arm portion 42 is disposed at a position where the tip end portion 42a of the arm portion 42 comes into contact with the contact portion 13 of the workpiece 10C to be conveyed (see FIG. 5B).

続いて、このワーク１０Ａの後方で搬送されるワーク１０Ｄは、ワーク１０Ｃの当接部１３に相当する部位を有していないので、解除部材４の腕部４２まで到達しても、ワーク１０Ｄの何れの部位も、解除部材４の腕部４２に接触しない。
そのため、ワーク１０Ｄが下流側に向けて移動すると、規制部材３のストッパ部３３が、ワーク１０Ｃに接触する位置（阻止位置）に配置されているので、ワーク１０Ｃの下流側への移動が、ストッパ部３３により阻止されることになる（図５の（ｂ）参照）。 Subsequently, since the workpiece 10D conveyed behind the workpiece 10A does not have a portion corresponding to the contact portion 13 of the workpiece 10C, even if the workpiece 10D reaches the arm portion 42 of the release member 4, the workpiece 10D Neither part contacts the arm portion 42 of the release member 4.
Therefore, when the workpiece 10D moves toward the downstream side, the stopper portion 33 of the restricting member 3 is disposed at a position (blocking position) in contact with the workpiece 10C. Therefore, the movement of the workpiece 10C toward the downstream side is stopped. It will be blocked by the portion 33 (see FIG. 5B).

このように、高さの異なるワーク１０Ｃ、１０Ｄが混在して搬送されることのある搬送装置２に、仕分け機構１Ａを設けることで、目的とするワーク１０Ｃのみを、選択的に通過させることができる。   In this way, by providing the sorting mechanism 1A in the transport device 2 in which the workpieces 10C and 10D having different heights may be transported in a mixed manner, only the target workpiece 10C can be selectively passed. it can.

このように、変形例にかかる仕分け機構１Ａでは、
（５）仕分けの対象となる対象ワークは、搬送コンベア２３に配置された状態で、搬送コンベア２３の載置面からの高さ方向の長さｈ１が、閾値高さｈｘ以上の当接部１３を持つワーク１０Ｃであり、
回転軸Ｘ３（第１回転軸）と回転軸Ｘ４（第２回転軸）は、搬送路２０の側方で、搬送路２０での搬送方向に直交する上下方向に沿う回転軸である構成とした。 Thus, in the sorting mechanism 1A according to the modification,
(5) The target workpiece to be sorted is in the state of being placed on the transport conveyor 23, and the length h1 from the placement surface of the transport conveyor 23 is equal to or greater than the threshold height hx. A workpiece 10C having
The rotation axis X3 (first rotation axis) and the rotation axis X4 (second rotation axis) are the rotation axes along the vertical direction perpendicular to the conveyance direction in the conveyance path 20 on the side of the conveyance path 20. .

このように構成すると、搬送コンベア２３に載置された状態で搬送されるワーク１０Ｃ、１０Ｄのうち、基準位置（搬送コンベア２３の載置面）から、載置面からの高さ方向の長さｈ１が、閾値高さｈｘ以上である部位を持つワーク１０Ｃ（対象ワーク）は、解除部材４の腕部４２の先端部４２ａ側に接触して、解除部材４を回転軸Ｘ４回りに搬送コンベア２３から離す方向に回動させる。
その結果、規制部材３は、解除部材４の腕部４２に当接させたボルト３６から作用する押圧力で、回転軸Ｘ３回りに回動して、第１腕部３２に設けたストッパ部３３が、搬送されるワーク１０Ｃ、１０Ｄの移動を阻止する阻止位置から、移動を阻止しない非阻止位置まで変位するので、ワーク１０Ｃは、仕分け機構１を通過する（図５の（ａ）参照）。 If comprised in this way, the length of the height direction from a mounting surface from the reference | standard position (the mounting surface of the conveying conveyor 23) among the workpiece | work 10C, 10D conveyed in the state mounted in the conveying conveyor 23. FIG. A workpiece 10C (target workpiece) having a portion where h1 is equal to or greater than the threshold height hx contacts the tip end 42a side of the arm portion 42 of the release member 4, and the release member 4 is conveyed around the rotation axis X4 on the conveyor 23. Rotate in the direction away from.
As a result, the regulating member 3 is rotated around the rotation axis X <b> 3 by the pressing force acting from the bolt 36 brought into contact with the arm portion 42 of the release member 4, and the stopper portion 33 provided on the first arm portion 32. However, the workpiece 10C passes through the sorting mechanism 1 (see FIG. 5A) because the workpiece 10C is displaced from the blocking position that blocks the movement of the workpieces 10C and 10D to the non-blocking position that does not block the movement.

一方、載置面からの高さ方向の長さｈ１が、閾値高さｈｘよりも低いワーク１０Ｄは、解除部材４の腕部４２の先端部４２ａ側に接触しないので、規制部材３が解除部材４により押されて回転軸Ｘ３回りに回動することがない（図５の（ｂ）参照）。
そのため、規制部材３のストッパ部３３は、搬送されるワーク１０Ａ、１０Ｂの移動を阻止する阻止位置に保持されたままとなるので、ワーク１０Ｂは、ストッパ部３３により下流側への移動が規制されて、仕分け機構１を通過できない（図３の（ｃ）参照）。
よって、対象ワークであるワーク１０Ｃのみを通過させて、取り出すことができる。
そのため、高さ方向の長さが所定寸法以上のワークのみを投入すべきラインに長さが所定寸法未満であるワークが誤って投入された場合であっても、所定寸法未満のワークが下流側の工程などに搬送されることを好適に防止できる。 On the other hand, since the workpiece 10D whose length h1 in the height direction from the placement surface is lower than the threshold height hx does not come into contact with the distal end portion 42a side of the arm portion 42 of the release member 4, the regulating member 3 is the release member. 4 and is not rotated around the rotation axis X3 (see FIG. 5B).
For this reason, the stopper portion 33 of the regulating member 3 remains held at the blocking position for preventing the movement of the conveyed workpieces 10A and 10B, so that the workpiece 10B is restricted from moving downstream by the stopper portion 33. Thus, it cannot pass through the sorting mechanism 1 (see FIG. 3C).
Therefore, only the workpiece 10C that is the target workpiece can be passed through and taken out.
Therefore, even if a workpiece with a length less than the predetermined dimension is mistakenly inserted into a line where only the workpiece with a length in the height direction equal to or larger than the predetermined dimension is to be thrown, It can prevent suitably being conveyed by the process of this.

前記した実施の形態では、仕分け機構１を、搬送路２０の下方に設けた場合を例示し、変形例では、仕分け機構１Ａを、搬送コンベア２３の側方に設けた場合を例示したが、仕分け機構１を、搬送路２０や搬送コンベア２３の上方に設けた構成としても良い。   In the above-described embodiment, the case where the sorting mechanism 1 is provided below the transport path 20 is illustrated. In the modification, the case where the sorting mechanism 1A is provided on the side of the transport conveyor 23 is illustrated. The mechanism 1 may be configured to be provided above the transport path 20 and the transport conveyor 23.

１、１Ａ 仕分け機構
２、２Ａ 搬送装置
３ 規制部材
４ 解除部材（作動部材）
１０Ａ、１０Ｃ ワーク（対象ワーク）
１０Ｂ、１０Ｄ ワーク（対象外ワーク）
１１Ａ、１１Ｂ 基部
１２Ａ、１２Ｂ 軸部
１２Ａ１、１２Ｂ１ 下端
１３ 当接部
２０ 搬送路
２１、２２ 搬送レール
２３ 搬送コンベア
２３ａ 載置面
２４ ガイド壁
３１ 連結部
３２ 第１腕部
３２ａ 先端部
３３ ストッパ部
３３ａ 先端部
３４ 第２腕部
３５ 錘
３６ ボルト
３７ ナット
４１ 連結部
４２ 腕部
４２ａ 先端部
４２ｂ 下面
５１ 軸部
５２ 軸部
３４１ 雄ネジ
３５１ 雌ネジ
３６２ 軸部
３６２ａ 先端部
Ｌｍ 線分
Ｌｎ 線分
Ｌｏ 線分
Ｓｐ スプリング
Ｘ１ 軸線
Ｘ２ 軸線
Ｘ３ 軸線
Ｘ４ 軸線
ｈｘ 閾値高さ 1, 1A Sorting mechanism 2, 2A Conveying device 3 Restricting member 4 Release member (actuating member)
10A, 10C workpiece (target workpiece)
10B, 10D work (non-target work)
11A, 11B Base portion 12A, 12B Shaft portion 12A1, 12B1 Lower end 13 Abutting portion 20 Conveying path 21, 22 Conveying rail 23 Conveying conveyor 23a Placement surface 24 Guide wall 31 Connecting portion 32 First arm portion 32a Tip portion 33 Stopper portion 33a Tip portion 34 Second arm portion 35 Weight 36 Bolt 37 Nut 41 Connecting portion 42 Arm portion 42a Tip portion 42b Lower surface 51 Shaft portion 52 Shaft portion 341 Male screw 351 Female screw 362 Shaft portion 362a Tip portion Lm Line segment Ln Line segment Lo line Minute Sp Spring X1 Axis X2 Axis X3 Axis X4 Axis hx Threshold height

Claims (5)

搬送路に沿って搬送されるワークのうち、基準位置から前記ワーク上の所定部位までの長さが、仕分け用の基準長さ以上である対象ワークを通過させ、前記基準長さ未満である対象外ワークの通過を阻止する仕分け機構であって、
前記搬送路の外に設定した第１回転軸で揺動可能に支持されていると共に、前記第１回転軸の径方向に所定長さを有する腕部に設けたストッパ部が、前記ワークの搬送方向における前記第１回転軸よりも下流側で、前記搬送されるワークの移動を阻止する阻止位置と、移動を阻止しない非阻止位置との間で変位可能とされた規制部材と、
前記第１回転軸に対して平行に設けられた第２回転軸で揺動可能に支持されていると共に、前記第２回転軸の径方向に所定長さを有する腕部の先端側を、前記第２回転軸よりも下流側で、前記規制部材の腕部の前記搬送路側に配置した作動部材と、
前記ストッパ部を前記阻止位置に配置させる方向の回転力を前記規制部材に作用させる回転力作用機構と、
前記規制部材の腕部における前記ストッパ部と前記第１回転軸の間の領域と、前記作動部材の腕部の何れか一方に設けられて、前記規制部材の腕部における前記ストッパ部と前記第１回転軸の間の領域と、前記作動部材の腕部の他方に先端部を当接させた当接部材と、を有し、
前記規制部材が前記ストッパ部を前記阻止位置に配置させた状態で、前記作動部材の腕部が、前記対象ワークの移動によってのみ、前記ストッパ部を前記非阻止位置に変位させる位置に配置したことを特徴とする仕分け機構。 Among the workpieces transported along the transport path, the target workpiece whose length from the reference position to the predetermined part on the workpiece is equal to or greater than the reference length for sorting is less than the reference length A sorting mechanism that prevents the passage of outside workpieces,
A stopper provided on an arm portion that is swingably supported by a first rotating shaft set outside the conveying path and has a predetermined length in the radial direction of the first rotating shaft is configured to convey the workpiece. A regulating member that is displaceable between a blocking position that prevents movement of the conveyed workpiece and a non-blocking position that does not block movement on the downstream side of the first rotating shaft in the direction;
The tip end side of the arm portion supported by a second rotation shaft provided in parallel to the first rotation shaft and swingable at a predetermined length in the radial direction of the second rotation shaft, An operation member disposed on the transport path side of the arm portion of the restriction member on the downstream side of the second rotation shaft;
A rotational force acting mechanism that causes the restricting member to act on a rotational force in a direction in which the stopper portion is disposed at the blocking position;
The stopper member in the arm portion of the restricting member is provided in any one of the region between the stopper portion and the first rotating shaft in the arm portion of the restricting member and the arm portion of the actuating member, A region between one rotation axis and an abutting member having a tip abutted against the other arm of the operating member;
In a state where the restriction member has the stopper portion disposed at the blocking position, the arm portion of the operating member is disposed at a position where the stopper portion is displaced to the non-blocking position only by movement of the target workpiece. A sorting mechanism characterized by 前記対象ワークは、前記搬送路から下方に突出した軸部の下端までの長さが、前記基準長さ以上のワークであり、
前記第１回転軸と前記第２回転軸は、前記搬送路の下側で、前記ワークの搬送方向に直交する水平な回転軸であることを特徴とする請求項１に記載の仕分け機構。 The target workpiece is a workpiece whose length from the conveyance path to the lower end of the shaft portion protruding downward is equal to or greater than the reference length,
2. The sorting mechanism according to claim 1, wherein the first rotating shaft and the second rotating shaft are horizontal rotating shafts below the transport path and perpendicular to the transport direction of the workpiece. 前記規制部材は、前記第１回転軸を挟んだ前記腕部の反対側に、前記第１回転軸の径方向に直線状に延びる軸部と、当該軸部に取り付けられた錘とをさらに有しており、
前記軸部と前記錘とで、前記回転力作用機構を構成していることを特徴とする請求項２に記載の仕分け機構。 The restricting member further includes a shaft portion extending linearly in the radial direction of the first rotation shaft and a weight attached to the shaft portion on the opposite side of the arm portion across the first rotation shaft. And
The sorting mechanism according to claim 2, wherein the shaft portion and the weight constitute the rotational force acting mechanism. 前記ストッパ部は、前記規制部材の腕部に固定されていると共に、前記腕部との交差角を変更可能とされており、
前記錘は、前記軸部の外周に螺合して設けられていると共に、前記軸部の長手方向の位置が変更可能とされていることを特徴とする請求項３に記載の仕分け装置。 The stopper portion is fixed to the arm portion of the restricting member, and the crossing angle with the arm portion can be changed.
The sorting device according to claim 3, wherein the weight is screwed to an outer periphery of the shaft portion, and a position in the longitudinal direction of the shaft portion can be changed. 前記対象ワークは、搬送コンベアに配置された状態で、前記搬送コンベアの載置面からの高さ方向の長さが、前記基準長さ以上のワークであり、
前記第１回転軸と前記第２回転軸は、前記搬送路の側方で、前記搬送路での前記搬送方向に直交する上下方向に沿う回転軸であることを特徴とする請求項１に記載の仕分け機構。 The target workpiece is a workpiece having a length in a height direction from the placement surface of the conveyor, which is arranged on the conveyor, and is equal to or more than the reference length.
The said 1st rotating shaft and the said 2nd rotating shaft are the rotating shafts which follow the up-down direction orthogonal to the said conveyance direction in the said conveyance path by the side of the said conveyance path. Sorting mechanism.
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