JP4370512B2 - Rotating conveyor - Google Patents

Rotating conveyor Download PDF

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JP4370512B2
JP4370512B2 JP2004036744A JP2004036744A JP4370512B2 JP 4370512 B2 JP4370512 B2 JP 4370512B2 JP 2004036744 A JP2004036744 A JP 2004036744A JP 2004036744 A JP2004036744 A JP 2004036744A JP 4370512 B2 JP4370512 B2 JP 4370512B2
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武志 当房
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株式会社ダイフク
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本発明は、旋回自在に支持された物品載置台に、それの周方向に沿って噛合部が備えられた被駆動体が設けられ、その被駆動体に噛合する駆動回転体が設けられて、その駆動回転体の回転により前記物品載置台を旋回させるように構成された旋回式搬送装置に関するものである。   The present invention is provided with a driven body provided with a meshing portion along a circumferential direction of the article mounting table supported so as to be pivotable, and provided with a driving rotating body meshing with the driven body, The present invention relates to a revolving transport device configured to revolve the article mounting table by the rotation of the driving rotating body.
かかる旋回式搬送装置において、従来では、被駆動体を物品載置台の周方向に物品載置台の旋回軸芯から設定間隔を保つ状態で周方向に沿って設け、駆動回転体を位置固定状態に設けて、駆動回転体と被駆動体との間隔が一定状態に維持するように構成されていた(例えば、特許文献1参照。)。   In such a swivel type conveying device, conventionally, the driven body is provided along the circumferential direction in the circumferential direction of the article mounting table while maintaining a set interval from the pivot axis of the article mounting table, and the driving rotating body is in a fixed position. It was provided so that the distance between the drive rotating body and the driven body is maintained in a constant state (see, for example, Patent Document 1).
特開2003−261217号公報JP 2003-261217 A
しかしながら、設計誤差や経年により物品載置台が偏心すると、物品載置台の旋回した際の駆動回転体と被駆動体との間隔が一定でなくなり、駆動回転体と被駆動体との間隔が狭くなり被駆動体が駆動回転体に押し付けられることによる複動体や駆動回転体の破損や、駆動回転体と被駆動体との間隔が広くなり被駆動体が駆動回転体から離れて駆動回転体と被駆動体との噛合が外れる等、物品載置台を円滑に旋回させることができなくなる可能性があった。   However, if the article mounting table is decentered due to design errors or aging, the distance between the drive rotating body and the driven body when the article mounting table is turned is not constant, and the distance between the driving rotating body and the driven body is narrowed. Damage to the double-acting body or the driving rotator due to the driven body being pressed against the driving rotator, or the distance between the driving rotator and the driven body is widened so that the driven body is separated from the driving rotator. There is a possibility that the article mounting table cannot be smoothly turned, for example, the engagement with the driving body is disengaged.
本発明は、上記実状に鑑みて為されたものであって、その目的は、物品載置台が偏心しても駆動回転体と被駆動体との間隔を一定又は略一定状態に維持し、物品載置台を円滑に旋回させることができる旋回式搬送手段を提供する点にある。   The present invention has been made in view of the above circumstances, and the object thereof is to maintain a constant or substantially constant interval between the drive rotating body and the driven body even when the article mounting table is decentered. It is in the point which provides the turning-type conveyance means which can turn a mounting base smoothly.
本願発明の旋回式搬送装置は、旋回自在に支持された物品載置台に、それの周方向に沿って噛合部が備えられた被駆動体が設けられ、その被駆動体に噛合する駆動回転体が設けられて、その駆動回転体の回転により前記物品載置台を旋回させるように構成された旋回式搬送装置であって、
第1特徴構成は、前記駆動回転体が、前記被駆動体に対する遠近方向に移動自在に支持された状態で、且つ、付勢手段にて前記被駆動体側に付勢された状態で設けられ、前記被駆動体に対する遠近方向に沿って前記駆動回転体と一体的に移動する規制体が設けられ、前記規制体の前記被駆動体側への移動範囲を受け止め規制して、前記駆動回転体と前記被駆動体との間隔を一定又は略一定状態に維持する受け止め体が、前記物品載置台に、それの周方向に沿って設けられ、前記規制体が、その外径が前記駆動回転体の外径よりも大径に形成され且つ前記物品載置台の旋回軸心と平行又は略平行な前記駆動回転体の回転軸に対して相対回転自在に前記回転軸に支持されて、その外周面を前記受け止め体に接当するように構成されている点を特徴とする。
The swivel type conveying apparatus of the present invention is a driven rotating body that is provided with a driven body provided with a meshing portion along a circumferential direction of the article mounting table that is supported so as to be swiveled, and meshes with the driven body. Is a revolving transport device configured to revolve the article mounting table by the rotation of the drive rotator,
The first characteristic configuration is provided in a state in which the driving rotating body is supported so as to be movable in a perspective direction with respect to the driven body, and is biased to the driven body side by a biasing means, A restricting body that moves integrally with the drive rotating body along a perspective direction with respect to the driven body is provided, and receives and restricts a moving range of the restricting body toward the driven body, and the driving rotating body and the A receiving body that maintains a constant or substantially constant distance from the driven body is provided on the article mounting table along a circumferential direction thereof, and the regulating body has an outer diameter that is outside of the driving rotating body. The rotation shaft is supported by the rotation shaft so as to be relatively rotatable with respect to the rotation shaft of the drive rotation body that is formed with a diameter larger than the diameter and is parallel to or substantially parallel to the pivot axis of the article mounting table, characterized in that it is configured to brought into contact with receiving members To.
すなわち、被駆動体に対する遠近方向に移動自在に支持された駆動回転体を付勢手段にて被駆動体側に付勢された状態で設け、また、駆動回転体と一体的に移動する規制体を受け止め体にて受け止めて規制体の被駆動側への移動範囲を受け止め規制している。つまり、付勢手段による被駆動体側への付勢と規制体の受け止め規制とにより駆動回転体と被駆動体との間隔を一定又は略一定に維持することができ、例え、設計誤差や経年により物品載置台が偏心し、物品載置台を旋回させた際にその物品載置台における被駆動体が駆動回転体に近づいたり駆動回転体から離れたりしようとしても、付勢手段による付勢と規制体による受け止め規制とによって駆動回転体が被駆動体に追従して駆動回転体と被駆動体との間隔が一定又は略一定に維持することができ、もって、物品載置台を円滑に旋回させることができる旋回式搬送装置を提供できるに至った。
また、規制体を物品載置台の旋回軸心と平行又は略平行な回転軸心周りに回転自在に支持することにより、物品載置台が旋回するに伴ってその物品載置台の受け止め体に接当する規制体が回転して規制体と受け止め体との接触摩擦が抑えられるので、物品載置台を円滑に旋回させることができる。
また、規制体を駆動回転体の回転軸に支持させて規制体の回転軸と駆動回転体の回転軸とを兼用させることにより、構成を簡素化させながら駆動回転体と被駆動体とを同軸心上で回転するように容易に組み付けることができる。
In other words, a driving rotator that is supported so as to be movable in the perspective direction with respect to the driven body is provided in a state of being urged toward the driven body by the urging means, and a regulating body that moves integrally with the driving rotator is provided. The receiving body receives and restricts the movement range of the restricting body toward the driven side. In other words, the distance between the drive rotating body and the driven body can be maintained constant or substantially constant by urging the driven body side by the urging means and the receiving restriction of the restricting body, for example, due to design errors and aging. When the article mounting table is decentered and the article mounting table is turned, even if the driven body on the article mounting table approaches or moves away from the driving rotary body, the biasing means and the regulating body by the biasing means By the regulation of receiving, the driving rotating body can follow the driven body and the distance between the driving rotating body and the driven body can be maintained constant or substantially constant, so that the article mounting table can be smoothly turned. It was possible to provide a swivel type transfer device that can be used.
Further, by supporting the regulating body so as to be rotatable around a rotation axis that is parallel or substantially parallel to the pivot axis of the article mounting table, the regulating body contacts the receiving body of the article mounting table as the article mounting table rotates. Since the regulating body to be rotated rotates and the contact friction between the regulating body and the receiving body is suppressed, the article mounting table can be smoothly turned.
Further, by supporting the restricting body on the rotating shaft of the driving rotator and using both the rotating shaft of the restricting body and the rotating shaft of the driving rotator, the driving rotator and the driven body are coaxially simplified while simplifying the configuration. It can be easily assembled to rotate on the heart.
第2特徴構成は、前記被駆動体が、チェーンにて構成され、前記駆動回転体が、スプロケットにて構成されている点を特徴とする。   The second characteristic configuration is characterized in that the driven body is constituted by a chain, and the driving rotary body is constituted by a sprocket.
すなわち、被駆動体と駆動回転体とを設けるのに、チェーンを物品搬送台にそれの周方向に沿って設け、スプロケットをチェーンに対する遠近方向に移動自在に支持された状態で且つ付勢手段にてチェーン側に付勢された状態で設けるだけでよく、駆動回転体や被駆動体を構造簡単で且つ容易に配設することができる。   That is, in order to provide the driven body and the driving rotary body, the chain is provided on the article transport table along the circumferential direction thereof, and the sprocket is supported so as to be movable in the perspective direction with respect to the chain, and the biasing means. Thus, it is only necessary to provide it in a state of being biased toward the chain side, and the structure of the driving rotating body and the driven body can be simply arranged.
特徴構成は、前記駆動回転体とその駆動回転体を回転駆動する駆動手段とが、ユニット状枠体に構成され、そのユニット状枠体が、前記駆動回転体を前記被駆動体に対する遠近方向に移動自在に支持すべく、前記被駆動体に対する遠近方向に揺動自在に支持されている点を特徴とする。 According to a third characteristic configuration, the drive rotator and a drive unit that rotationally drives the drive rotator are configured in a unit-shaped frame, and the unit-shaped frame has a perspective view of the drive rotator with respect to the driven body. It is characterized in that it is supported so as to be swingable in a perspective direction with respect to the driven body so as to be movably supported in the direction.
すなわち、駆動回転体と駆動手段とで構成されるユニット用枠体を被駆動体に対する遠近方向に揺動することにより、そのユニット用枠体における駆動回転体が被駆動体に対して遠近方向に移動することとなり、駆動回転体と駆動手段とを相対的に移動させることなく駆動回転体を被駆動体に対して遠近方向に移動させることができるので、駆動手段から駆動回転体への伝動機構に駆動回転体と駆動手段との相対的に移動を許容するような構造が必要なく、駆動手段から駆動回転体への伝動機構を簡単なものとすることができる。   That is, by swinging the unit frame composed of the drive rotator and the drive means in the perspective direction with respect to the driven body, the drive rotator in the unit frame is moved in the perspective direction with respect to the driven body. Since the drive rotator can be moved in the perspective direction with respect to the driven body without moving the drive rotator and the drive means relatively, a transmission mechanism from the drive means to the drive rotator Further, there is no need for a structure that allows relative movement between the drive rotator and the drive means, and the transmission mechanism from the drive means to the drive rotator can be simplified.
以下、本発明による旋回式搬送装置を自動倉庫に適用した場合の実施の形態を図面に基づいて説明する。
図1に示すように、この自動倉庫は、各種の物品AをパレットP上に載置した状態で収納保管するための保管棚1を備えている。この保管棚1は、パレットPを載置保持する収納部を上下方向と横方向とに複数個ずつ並べた構造で、相対向する一対を一組として複数組配設されている。
各組の相対向する保管棚1の間には、上下方向に昇降可能な昇降台やフォークなどを備えたスタッカークレーン2がレール3に沿って移動可能に設けられ、このスタッカークレーン2によって、保管棚1の入口側に設けられた搬入用リフタ4上のパレットPを保管棚1の収納部に搬入したり、収納部のパレットPを搬出用リフタ5上にまで搬出するように構成されている。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments in the case where a revolving transport device according to the present invention is applied to an automatic warehouse will be described below with reference to the drawings.
As shown in FIG. 1, this automatic warehouse includes a storage shelf 1 for storing and storing various articles A in a state of being placed on a pallet P. The storage shelf 1 has a structure in which a plurality of storage units for placing and holding the pallets P are arranged in the vertical direction and the horizontal direction, and a plurality of sets each having a pair of opposing ones are arranged.
Between each pair of opposing storage shelves 1, a stacker crane 2 having a lifting platform and a fork that can be moved up and down is provided so as to be movable along the rail 3. The pallet P on the loading lifter 4 provided on the entrance side of the shelf 1 is loaded into the storage unit of the storage shelf 1, or the pallet P of the storage unit is carried out onto the unloading lifter 5. .
前記搬入用リフタ4の収納棚1から離れる側には、搬入用の移載リフタ6が、また、搬出用リフタ5の収納棚から離れる側には、同じく搬出用の移載リフタ7が設けられ、搬入用の移載リフタ6と搬入用リフタ4との間には、移載リフタ6上のパレットPを搬入用リフタ4まで搬送する搬入用コンベヤ8が設けられ、また、搬出用の移載リフタ7と搬出用リフタ5との間には、搬出用リフタ5上のパレットPを移載リフタ7まで搬送する搬出用コンベヤ9が設けられている。   On the side away from the storage shelf 1 of the carry-in lifter 4, a transfer lifter 6 for carrying-in is provided, and on the side away from the storage shelf of the carry-out lifter 5, a transfer lifter 7 for carrying out is also provided. Between the transfer lifter 6 for loading and the lifter 4 for loading, a conveyor 8 for carrying the pallet P on the transfer lifter 6 to the lifter 4 for loading is provided, and transfer for unloading is provided. An unloading conveyor 9 is provided between the lifter 7 and the unloading lifter 5 to convey the pallet P on the unloading lifter 5 to the transfer lifter 7.
図2に示すように、各搬入用の移載リフタ6と搬出用の移載リフタ7との間にわたっては、伸縮可能なフォーク10aを上面に備えた自走式の物品搬送車10が、走行路面としての床面上を走行可能に構成され、その走行径路に沿って物品搬送車10を案内するガイドレール11がループ状に配設されている。   As shown in FIG. 2, a self-propelled article transport vehicle 10 having an extendable fork 10 a on its upper surface runs between each transfer transfer lifter 6 and transfer transfer lifter 7. A guide rail 11 that is configured to be able to travel on a floor surface as a road surface and guides the article transport vehicle 10 along the travel path is arranged in a loop shape.
このループ状のガイドレール11の外側には、入庫用の物品搬入部12と出庫用の物品搬出部13並びにピッキング用搬入部15とピッキング用搬出部16とが設けられており、例えば、各物品搬送車10がフォーク10aで物品搬入部12上にあるパレットPを掬い取って搬入用の移載リフタ6上まで搬送したり、搬出用の移載リフタ7上にあるパレットPを掬い取ってピッキング用搬入部15上まで搬送したり、ピッキング用搬出部16上のパレットPを掬い取って出庫用の物品搬送部13上まで搬送するように構成されている。   On the outside of the loop-shaped guide rail 11, there are provided an article carrying-in part 12 for warehousing, an article carrying-out part 13 for unloading, a carrying-in part 15 for picking, and an unloading part 16 for picking. The transport vehicle 10 picks up the pallet P on the article carry-in section 12 with the fork 10a and transports it to the transfer lifter 6 for carrying in, or picks up the pallet P on the transfer lifter 7 for picking up and picking it. The pallet P on the picking-out part 16 is picked up and transported to the article transporting part 13 for unloading.
そして、ピッキング用搬入部15やピッキング用搬出部16のガイドレール11から離れる側にはピッキング作業用の旋回用搬送装置Sが設けられており、旋回用搬送装置Sとピッキング用搬入部15との間には、ピッキング搬入部15上のパレットPを旋回用搬送装置Sまで搬送するローラコンベヤにて構成されたピッキング用搬入コンベヤ17が設けられ、また、旋回用搬送装置Sとピッキング用搬出部16との間には、旋回用搬送装置S上のパレットPをピッキング用搬出部16に搬送するローラコンベヤにて構成されたピッキング用搬出コンベヤ18が設けられている。   Further, a revolving transport device S for picking work is provided on the side away from the guide rail 11 of the picking carry-in portion 15 and the picking carry-out portion 16, and the revolving transport device S and the picking carry-in portion 15 are connected to each other. Between them, there is provided a picking-in conveyor 17 composed of a roller conveyor that transports the pallet P on the picking-in part 15 to the revolving transport device S, and the revolving transport device S and the picking-out unit 16. Is provided with a picking carry-out conveyor 18 constituted by a roller conveyor for carrying the pallet P on the swivel conveying device S to the picking carry-out unit 16.
次に、旋回用搬送装置Sについて詳述する。図3に示すように、旋回用搬送装置Sは、底板25に枠体26を立設させて構成された基枠21と、その基枠21にベアリング27を介して旋回自在に支持されたドーナツ形状の物品載置台22と、その物品載置台22上に設けられてピッキング用搬入コンベヤ17側からピッキング用搬出コンベヤ18側に物品を搬送する搬送コンベヤ23とで構成されている。   Next, the turning conveyor device S will be described in detail. As shown in FIG. 3, the swivel conveying device S includes a base frame 21 configured by standing a frame body 26 on a bottom plate 25, and a donut that is pivotally supported by the base frame 21 via a bearing 27. The article mounting table 22 having a shape and a transport conveyor 23 that is provided on the article mounting table 22 and transports articles from the picking-in conveyor 17 side to the picking-out conveyor 18 side.
図5に示すように、前記物品載置台22の下面におけるベアリング27にて支持された箇所より内周側にはドーナツ形状の支持部材28が取り付けられており、その支持部材28の内周面にチェーン29が物品載置台22の周方向に沿うように支持されている。また、基枠21には物品載置台22の旋回軸心Xと平行又は略平行な回転軸心Y周りに回転する出力軸(回転軸に相当)32aを備えた電動モータ(駆動手段に相当)32が設けられ、その電動モータ32の出力軸32aにチェーン29と噛合するスプロケット31が一体回転するように取り付けられている。従って、電動モータ32によるスプロケット31の回転により物品載置台22が旋回軸心X周りに旋回するように構成されている。   As shown in FIG. 5, a donut-shaped support member 28 is attached to the inner peripheral side of the lower surface of the article mounting table 22 supported by the bearing 27, and the support member 28 has an inner peripheral surface. The chain 29 is supported along the circumferential direction of the article mounting table 22. In addition, the base frame 21 includes an electric motor (corresponding to a driving unit) provided with an output shaft (corresponding to a rotational shaft) 32a that rotates around a rotational axis Y that is parallel or substantially parallel to the pivot axis X of the article mounting table 22. 32, and a sprocket 31 meshing with the chain 29 is attached to an output shaft 32a of the electric motor 32 so as to rotate integrally. Accordingly, the article mounting table 22 is configured to rotate around the rotation axis X by the rotation of the sprocket 31 by the electric motor 32.
そして、スプロケット31とそのスプロケット31を回転駆動する電動モータ32とが、ユニット状枠体Uに構成され、そのユニット状枠体Uが、スプロケット31をチェーン29に対する遠近方向に移動自在に支持すべく、スプロケット31に対する遠近方向に揺動自在に支持されている。つまり、図4に示すように、電動モータ32が物品載置台22の旋回軸心Xと平行又は略平行な揺動軸心Z周りにユニット状枠体Uが揺動することにより、スプロケット31がチェーン29に対する遠近方向に移動するように構成されている。   A sprocket 31 and an electric motor 32 that rotationally drives the sprocket 31 are formed in a unit-shaped frame U, and the unit-shaped frame U supports the sprocket 31 so as to be movable in a perspective direction with respect to the chain 29. The sprocket 31 is supported so as to be swingable in the perspective direction. That is, as shown in FIG. 4, the unit-shaped frame U swings around the swing axis Z that is parallel or substantially parallel to the pivot axis X of the article mounting table 22, so that the sprocket 31 is moved. It is configured to move in the perspective direction with respect to the chain 29.
図4に示すように、基枠21の底板25にはスプロケット31をチェーン29側に付勢する付勢手段33が設けられており、この付勢手段33は、底板25に固定された固定ブラケット35と、電動モータ32に連結固定された板状部材36と連結されて床面に沿ってスライド移動自在なスライド部材37との間に圧縮スプリング34を介在させて構成されており、付勢手段33により電動モータ32がチェーン29側に、つまりは、スプロケット31がチェーン29側に付勢するように構成されている。   As shown in FIG. 4, the bottom plate 25 of the base frame 21 is provided with a biasing means 33 that biases the sprocket 31 toward the chain 29, and this biasing means 33 is a fixed bracket fixed to the bottom plate 25. 35 and a plate member 36 connected and fixed to the electric motor 32, and a slide member 37 that is slidably movable along the floor surface. The electric motor 32 is biased to the chain 29 side by 33, that is, the sprocket 31 is biased to the chain 29 side.
また、図5に示すように、スプロケット31の回転軸である電動モータ32の出力軸32aには規制体38が物品載置台22の旋回軸心Xと平行又は略平行な回転軸心Y周りに回転自在に支持されて、揺動軸心Z周りにユニット状枠体Uが揺動することにより、チェーン29に対する遠近方向に沿ってスプロケット31と一体的に移動するように構成されている。そして、前記支持部材28の下面に物品載置台22の周方向に沿うようにドーナツ形状の受け止め体39が取り付けられており、規制体38の外周面が受け止め体38の内周面に接当するように構成されている。従って、規制体38のチェーン29側への移動範囲を受け止め体38にて受け止め規制して、付勢手段33にてチェーン29側に付勢されるスプロケットを規制体38と受け止め体39とで受け止め規制することにより、駆動回転体と被駆動体との間隔が一定又は略一定に維持されている。   Further, as shown in FIG. 5, a regulating body 38 is provided around the rotation axis Y parallel or substantially parallel to the turning axis X of the article mounting table 22 on the output shaft 32 a of the electric motor 32 that is the rotation axis of the sprocket 31. The unit-shaped frame U is supported so as to be freely rotatable, and is configured to move integrally with the sprocket 31 along the perspective direction with respect to the chain 29 by swinging around the swing axis Z. A donut-shaped receiving body 39 is attached to the lower surface of the support member 28 along the circumferential direction of the article mounting table 22, and the outer peripheral surface of the regulating body 38 contacts the inner peripheral surface of the receiving body 38. It is configured as follows. Accordingly, the movement range of the regulating body 38 toward the chain 29 is received and regulated by the receiving body 38, and the sprocket urged to the chain 29 side by the urging means 33 is received by the regulating body 38 and the receiving body 39. By regulating, the distance between the drive rotating body and the driven body is maintained constant or substantially constant.
つまり、設計誤差や経年により、スプロケット31とチェーン29とが噛合する箇所において、図4に示すような状態から図6(イ)に示すようにスプロケット31とチェーン29とが互いに近づくように物品載置台22が偏心した場合では、規制体38と受け止め体39とで受け止め規制しながら付勢手段33の付勢力にてスプロケット31をチェーン29に近づく側に押し進めることにより、スプロケット31とチェーン29との間隔を一定又は略一定に維持することができる。
また、図4に示すような状態から図6(ロ)に示すようにスプロケット31とチェーン29とが互いに離れるように物品載置台22が偏心した場合では、付勢手段33の付勢力に抗して受け止め体39にて規制体38つまりはスプロケット31をチェーン29から離れる側に押し進めることにより、スプロケット31とチェーン29との間隔を一定又は略一定に維持することができる。
In other words, due to design errors and aging, the article is placed so that the sprocket 31 and the chain 29 come closer to each other as shown in FIG. When the pedestal 22 is eccentric, the sprocket 31 is pushed toward the chain 29 by the urging force of the urging means 33 while being regulated by the regulating body 38 and the receiving body 39, thereby The interval can be kept constant or substantially constant.
Further, in the case where the article mounting table 22 is eccentric so that the sprocket 31 and the chain 29 are separated from each other as shown in FIG. 6B from the state shown in FIG. 4, the urging force of the urging means 33 is resisted. By pushing the regulating body 38, that is, the sprocket 31 away from the chain 29 by the receiving body 39, the distance between the sprocket 31 and the chain 29 can be maintained constant or substantially constant.
図2、図3に示すように、物品載置台22上に載置支持された前記搬送コンベヤ23は、ローラ用枠体41に複数の駆動ローラ42が回転自在に支持されており、その駆動ローラ42の夫々がローラ用モータ43にて回転駆動されるように構成されている。また、ローラ用枠体41における搬送方向の両端部には遊転ローラ44が回転自在に支持されている。尚、旋回式搬送装置Sとピッキング用搬入コンベヤ17との間、並びに、旋回式搬送装置Sとピッキング用搬出コンベヤ18との間には夫々2つの補助ローラ46が床面に立設された支持フレーム45に回転自在に支持されている。   As shown in FIGS. 2 and 3, the transport conveyor 23 placed and supported on the article placement table 22 has a plurality of drive rollers 42 rotatably supported by a roller frame 41, and the drive rollers Each of 42 is rotationally driven by the motor 43 for rollers. Further, idle rollers 44 are rotatably supported at both ends of the roller frame 41 in the transport direction. Two auxiliary rollers 46 are installed on the floor between the swivel transfer device S and the pick-in carry-in conveyor 17 and between the swivel transfer device S and the pick-out carry-out conveyor 18. The frame 45 is rotatably supported.
図4、図5に示すように、前記旋回式搬送装置Sには、物品載置台22が基枠21に対して設定量旋回したことを検出する旋回検出手段47が設けられており、この旋回状態検出手段47は、物品載置台22の下面に設けられた検出片47aと、基枠21における枠体26に設けられて前記検出片47aの存否を検出する検出センサ47bとで構成されている。つまり、検出センサ47bが物品載置台22の周方向に等間隔に4つ設けられており、物品載置台22が、前記ピッキング用搬入コンベヤ17や前記ピッキング用搬出コンベヤ18と一連の搬送経路を形成する基準旋回位置、その基準旋回位置から正方向に90°及び180°旋回させた位置、並びに、逆方向の−90°旋回させた位置に旋回した際に、検出センサ47bにて検出片47aの存在を検出するように旋回検出手段47が構成されている。
そして、基枠21における枠体26に設けられた2つのストッパー部材49と、物品載置台22の下面に設けられた弾性体48との接当により、物品載置台22が基準旋回位置から正方向には180°並びに逆方向には90°以上旋回しないように規制されている。
As shown in FIGS. 4 and 5, the swivel transfer device S is provided with swivel detection means 47 for detecting that the article mounting table 22 swivels a set amount with respect to the base frame 21. The state detection unit 47 includes a detection piece 47a provided on the lower surface of the article mounting table 22, and a detection sensor 47b provided on the frame body 26 of the base frame 21 to detect the presence or absence of the detection piece 47a. . That is, four detection sensors 47b are provided at equal intervals in the circumferential direction of the article mounting table 22, and the article mounting table 22 forms a series of transport paths with the picking-in conveyor 17 and the picking-out conveyor 18. The detection piece 47a is detected by the detection sensor 47b when it is turned to the reference turning position, the position turned 90 ° and 180 ° in the forward direction from the reference turning position, and the position turned −90 ° in the reverse direction. A turning detection means 47 is configured to detect the presence.
Then, the article mounting table 22 is moved in the forward direction from the reference turning position by the contact between the two stopper members 49 provided on the frame 26 in the base frame 21 and the elastic body 48 provided on the lower surface of the article mounting table 22. Is restricted from turning 180 ° and 90 ° or more in the opposite direction.
旋回式搬送装置Sは、ピッキング用搬入コンベヤ17から旋回式搬送装置S上に移送された物品Aを、作業者が操作ボックスB(図1参照)を操作することによりピッキング作業の行いやすい姿勢に旋回させることができるものである。つまり、操作ボックスBには、物品載置台22を基準旋回位置から正方向に90°旋回させた位置や180°旋回させた位置、並びに、逆方向に90°旋回させた位置に旋回させる操作スイッチが備えられており、ピッキング用搬入コンベヤ17から移送されて搬送コンベヤ23の作動停止により旋回式搬送装置S上に位置するパレットPの姿勢を、そのパレットPに載置している物品Aに対してピッキング作業の行ない易い姿勢とすべく、操作ボックスBの操作スイッチを操作して物品載置台22を旋回操作するように構成されている。そして、ピッキング作業が終了して操作ボックスBの完了スイッチを押し操作することにより、操作ボックスBにて物品載置台22を旋回させた場合には物品載置台22を基準旋回位置まで旋回させ、その後、搬送コンベヤ23が作動させてピッキング搬出コンベヤ18まで移送される。   The swivel transfer device S is in a posture in which the operator can easily perform the picking work by operating the operation box B (see FIG. 1) of the article A transferred from the pick-in carry-in conveyor 17 onto the swivel transfer device S. It can be turned. That is, in the operation box B, an operation switch for turning the article mounting table 22 to a position turned 90 ° in the forward direction from the reference turning position, a position turned 180 °, and a position turned 90 ° in the opposite direction. And the posture of the pallet P which is transferred from the picking-in conveyor 17 and is positioned on the swivel conveying device S due to the operation of the conveying conveyor 23 being stopped is set with respect to the article A placed on the pallet P. Therefore, the article mounting table 22 is swiveled by operating the operation switch of the operation box B so as to make it easy to perform the picking work. When the picking operation is finished and the completion switch of the operation box B is pushed, when the article placement table 22 is turned by the operation box B, the article placement table 22 is turned to the reference turning position, and thereafter Then, the transfer conveyor 23 is operated and transferred to the picking / unloading conveyor 18.
〔別実施の形態〕
(1) 上記実施の形態では、噛合部が備えられた被駆動体をチェーン29にて構成し、駆動回転体をスプロケット31にて構成したが、噛合部が備えられた被駆動体を内歯歯車にて構成し、駆動回転体を駆動歯車にて構成してもよい。
[Another embodiment]
(1) In the above embodiment, the driven body provided with the meshing portion is configured by the chain 29, and the drive rotating body is configured by the sprocket 31, but the driven body provided with the meshing portion is defined as the internal tooth. You may comprise with a gearwheel and a drive rotary body may be comprised with a drive gearwheel.
(2) 上記各実施の形態では、ユニット用枠体Uを、駆動手段と、その出力軸に一体回転するように取り付けて回転軸心Y周りに回転する駆動回転体とで構成したが、ユニット用枠体Uを、揺動軸心Z周り揺動する支持フレームと、その支持フレームに固定状態に支持された駆動手段と、支持フレームに回転軸心Y周りに回転自在に支持された駆動回転体とで構成し、駆動手段と駆動回転体とを連動連結する構成でもよい。 (2) In each of the above embodiments, the unit frame U is constituted by the drive means and the drive rotator that rotates around the rotation axis Y by being attached to the output shaft so as to rotate integrally. A support frame that swings the frame body U about the swing axis Z, drive means that is fixedly supported by the support frame, and drive rotation that is supported by the support frame so as to be rotatable about the rotation axis Y The structure which comprises a body and interlock | cooperates and connects a drive means and a drive rotary body may be sufficient.
) 上記実施の形態での、物品載置台22に搬送コンベヤ23を設けたが、この搬送コンベヤ23を設けずに物品載置台22を円盤状に形成して物品載置台22上に直接物品Aを載置するように構成してもよく、具体的には、ロボットハンドにて物品Aを直接物品載置台22上に載せたり、旋回する物品載置台22上の物品をガイド体にて外方に案内させて移載するように構成してもよい。 ( 3 ) Although the conveyor 23 is provided on the article mounting table 22 in the above embodiment, the article mounting table 22 is formed in a disk shape without providing the conveying conveyor 23, and the article is directly placed on the article mounting table 22. A may be configured to place A. Specifically, the article A is directly placed on the article placing table 22 with a robot hand, or the article on the turning article placing table 22 is removed by a guide body. You may comprise so that it may be guided and transferred.
自動倉庫の平面図Floor plan of automated warehouse 旋回式搬送装置の平面図Plan view of swivel transfer device 旋回式搬送装置の側面図Side view of swivel transfer device 旋回式搬送装置の平面断面図Cross-sectional view of a swivel transfer device 旋回式搬送装置の一部を拡大した側面断面図Side cross-sectional view enlarging a part of a swivel transfer device 旋回式搬送装置の作用図Action diagram of swivel transfer device
符号の説明Explanation of symbols
22 物品載置台
29 チェーン(被駆動体)
32a 出力軸(回転軸)
31 スプロケット(駆動回転体)
38 規制体
39 受け止め体
S 旋回式搬送装置
U ユニット状枠体
X 旋回軸心
Y 回転軸心
22 article mounting table 29 chain (driven body)
32a Output shaft (rotary shaft)
31 Sprocket (drive rotor)
38 Regulating body 39 Receiving body S Revolving transport device U Unit-shaped frame X Revolving shaft center Y Rotating shaft center

Claims (3)

  1. 旋回自在に支持された物品載置台に、それの周方向に沿って噛合部が備えられた被駆動体が設けられ、その被駆動体に噛合する駆動回転体が設けられて、その駆動回転体の回転により前記物品載置台を旋回させるように構成された旋回式搬送装置であって、
    前記駆動回転体が、前記被駆動体に対する遠近方向に移動自在に支持された状態で、且つ、付勢手段にて前記被駆動体側に付勢された状態で設けられ、
    前記被駆動体に対する遠近方向に沿って前記駆動回転体と一体的に移動する規制体が設けられ、
    前記規制体の前記被駆動体側への移動範囲を受け止め規制して、前記駆動回転体と前記被駆動体との間隔を一定又は略一定状態に維持する受け止め体が、前記物品載置台に、それの周方向に沿って設けられ
    前記規制体が、その外径が前記駆動回転体の外径よりも大径に形成され且つ前記物品載置台の旋回軸心と平行又は略平行な前記駆動回転体の回転軸に対して相対回転自在に前記回転軸に支持されて、その外周面を前記受け止め体に接当するように構成されている旋回式搬送装置。
    An article mounting table supported so as to be pivotable is provided with a driven body provided with a meshing portion along a circumferential direction thereof, and a driving rotary body that is meshed with the driven body is provided. A revolving transport device configured to revolve the article mounting table by rotation of:
    The drive rotating body is provided in a state of being supported so as to be movable in a perspective direction with respect to the driven body, and being biased to the driven body side by a biasing means,
    A restricting body that moves integrally with the drive rotating body along a perspective direction with respect to the driven body is provided,
    A receiving body that receives and regulates the range of movement of the restricting body toward the driven body and maintains the distance between the driving rotating body and the driven body in a constant or substantially constant state is provided on the article mounting table. provided along the circumferential direction,
    The regulating body is rotated relative to the rotation axis of the drive rotator, the outer diameter of which is larger than the outer diameter of the drive rotator and parallel or substantially parallel to the pivot axis of the article mounting table. A swivel type conveying device that is freely supported by the rotating shaft and is configured to abut the outer peripheral surface of the receiving body .
  2. 前記被駆動体が、チェーンにて構成され、前記駆動回転体が、スプロケットにて構成されている請求項1記載の旋回式搬送装置。   The swivel type conveying apparatus according to claim 1, wherein the driven body is constituted by a chain, and the driving rotary body is constituted by a sprocket.
  3. 前記駆動回転体とその駆動回転体を回転駆動する駆動手段とが、ユニット状枠体に構成され、そのユニット状枠体が、前記駆動回転体を前記被駆動体に対する遠近方向に移動自在に支持すべく、前記被駆動体に対する遠近方向に揺動自在に支持されている請求項1又は2記載の旋回式搬送装置。 The drive rotator and a drive means for rotating the drive rotator are configured in a unit-shaped frame, and the unit-shaped frame supports the drive rotator so as to be movable in a perspective direction with respect to the driven body. Therefore, the swivel type conveying device is supported so as to be swingable in a perspective direction with respect to the driven body .
JP2004036744A 2004-02-13 2004-02-13 Rotating conveyor Expired - Fee Related JP4370512B2 (en)

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