JP4517833B2 - Plate reversing device - Google Patents

Plate reversing device Download PDF

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JP4517833B2
JP4517833B2 JP2004346999A JP2004346999A JP4517833B2 JP 4517833 B2 JP4517833 B2 JP 4517833B2 JP 2004346999 A JP2004346999 A JP 2004346999A JP 2004346999 A JP2004346999 A JP 2004346999A JP 4517833 B2 JP4517833 B2 JP 4517833B2
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plate material
plate
receiving member
reversing device
reversing
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JP2006150531A (en
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博朗 実沢
修二 柴田
真一 亘
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Hitachi Cable Ltd
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Hitachi Cable Ltd
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Description

本発明は、板材の表裏を反転する板材反転装置に係り、特に、長尺な板材の反転を自動的に行うことが可能な板材反転装置に関するものである。   The present invention relates to a plate material reversing device for reversing the front and back of a plate material, and more particularly to a plate material reversing device capable of automatically reversing a long plate material.

従来、板材の表裏を反転する板材反転装置として、例えば、製材設備に設けられるものがある。製材設備では、製材工程の一行程として板材の板厚を均一にするためにプレーナ加工が行われることがある。そのプレーナ加工は、例えば、板材の不整面を上側から加工することで行われる。このため、前工程で不整面が下向きに搬出された場合には、板材を反転させて不整面を上向きにしプレーナに搬入させる必要がある。   2. Description of the Related Art Conventionally, as a plate material reversing device that reverses the front and back of a plate material, for example, there is one provided in a lumber facility. In the lumber equipment, planar processing may be performed in order to make the plate thickness uniform as one step of the lumbering process. The planar processing is performed, for example, by processing the irregular surface of the plate material from above. For this reason, when the irregular surface is carried out downward in the previous process, it is necessary to reverse the plate material and bring the irregular surface upward into the planar.

そこで、図７および図８に示すような板材反転装置７１が用いられている。   Therefore, a plate material reversing device 71 as shown in FIGS. 7 and 8 is used.

板材反転装置７１は、前工程の加工装置などから板材７２を搬出する第一の搬送装置８１と、プレーナ８３に板材７２を搬入する第二の搬出装置８２との間に配置される。板材反転装置７１は、板材７２を滑らせて搬送するガイド７４と、そのガイド７４の搬送方向前方かつ下方に設けられた固定傾斜板７５とを備える。図８に示すように、ガイド７４は、く字状に形成され、その上側部分７４ａが第一の搬送装置８１から下方に傾斜して延出する。固定傾斜板７５は、ガイド７４の上側部分７４ａに対して略直交するように傾斜させて配置される。   The plate material reversing device 71 is disposed between a first transport device 81 that unloads the plate material 72 from a processing device or the like in a previous process and a second unloading device 82 that loads the plate material 72 into the planar 83. The plate material reversing device 71 includes a guide 74 that slides and conveys the plate material 72, and a fixed inclined plate 75 that is provided in front and below the conveyance direction of the guide 74. As shown in FIG. 8, the guide 74 is formed in a square shape, and its upper portion 74 a extends downwardly from the first transport device 81. The fixed inclined plate 75 is disposed to be inclined so as to be substantially orthogonal to the upper portion 74 a of the guide 74.

板材７２は、図７中点線矢印で示すように、自身の長手方向に沿って搬出された後、図７中実線矢印で示すように、幅方向に沿って板材反転装置７１に搬入されて反転し、その後、長手方向に沿ってプレーナ８３に搬入される。   The plate material 72 is unloaded along the longitudinal direction of itself as indicated by the dotted line arrow in FIG. 7, and then loaded into the plate reversing device 71 along the width direction and reversed as indicated by the solid line arrow in FIG. Then, it is carried into the planar 83 along the longitudinal direction.

板材７２の反転動作は次のように行われる。板材７２を第一の搬送装置８１によりガイド７４に横送りし、ガイド７４の上側部分７４ａに沿って滑らせる。板材７２は、ガイド７４から落下して固定傾斜板７５に衝突する。衝突した板材７２は、衝突部分を中心に搬送方向前方に向かい（図８において時計回りに）回転して、上下面の向きを変えた後、固定傾斜板７５に沿って滑り落ちる。以上により板材７２の不整面が上向きになる。   The reversing operation of the plate material 72 is performed as follows. The plate material 72 is laterally fed to the guide 74 by the first conveying device 81 and is slid along the upper portion 74 a of the guide 74. The plate material 72 falls from the guide 74 and collides with the fixed inclined plate 75. The collided plate material 72 rotates forward (in the clockwise direction in FIG. 8) around the colliding portion to change the direction of the upper and lower surfaces, and then slides down along the fixed inclined plate 75. As described above, the irregular surface of the plate member 72 faces upward.

しかし、従来の板材反転装置７１には、以下のような問題があった。   However, the conventional plate reversing device 71 has the following problems.

衝突により板材７２を反転させるには、衝突時の板材７２の速度などが所定の条件を満たす必要があるが、板材７２はサイズが異なると重量や摩擦抵抗が異なるため、板材７２を固定傾斜板７５に最適な状態で衝突させることは非常に困難であった。そのために板材７２が反転する確率が低いという問題があった。板材７２の反転に失敗した場合には、板材７２の不整面の再加工がなされず、プレーナー加工後の板厚精度を低下させていた。   In order to reverse the plate material 72 by the collision, the speed of the plate material 72 at the time of the collision needs to satisfy predetermined conditions. However, since the plate material 72 has different weight and frictional resistance when the size is different, the plate material 72 is fixed to the fixed inclined plate. It was very difficult to collide with 75 in an optimal state. Therefore, there is a problem that the probability that the plate material 72 is reversed is low. When the reversal of the plate member 72 fails, the irregular surface of the plate member 72 is not reworked, and the plate thickness accuracy after the planar processing is lowered.

板材７２が固定傾斜板７５と衝突した時にその衝撃により割れてしまうという問題があった。そのような割れた板材は製品として使用できないために歩留まりの低下を招いていた。割れた板材を除去するためには、製材ラインを停止させる必要があり、生産性の低下を招いていた。   When the plate material 72 collides with the fixed inclined plate 75, there is a problem that the plate material 72 is broken by the impact. Since such a broken plate material cannot be used as a product, the yield is reduced. In order to remove the cracked plate material, it is necessary to stop the sawing line, resulting in a decrease in productivity.

更には、自動運転される製材ラインの中で反転工程が行われる場合には、反転に失敗した板材も自動的にプレーナ８３に搬送されてしまい、その搬送の途中などで修正作業を行うことは極めて困難であるという問題があった。   Furthermore, when the reversing process is performed in a lumber line that is automatically operated, the plate material that has failed to be reversed is also automatically conveyed to the planar 83, and correction work may not be performed during the conveyance. There was a problem that it was extremely difficult.

特許文献２に開示されている反転装置（旋回レバー機構）は、板材を裏側から付勢することで板材の反転確率を高めている。   The reversing device (swivel lever mechanism) disclosed in Patent Document 2 increases the reversal probability of the plate material by urging the plate material from the back side.

その反転装置は、反転装置に搬送された板材を、搬送経路上に設けられた旋回レバー上で停止させるためのストッパと、旋回レバーを上方に旋回させる油圧シリンダとを備える。   The reversing device includes a stopper for stopping the plate material conveyed to the reversing device on a turning lever provided on the conveying path, and a hydraulic cylinder for turning the turning lever upward.

板材の反転動作は次のように行われる。送り込まれた板材は、ストッパに衝突して、旋回レバー上で停止する。板材の停止後、油圧シリンダを作動して旋回レバーを上方に旋回させる。その旋回により板材が回転して、板材の表裏が反転する。   The reversing operation of the plate material is performed as follows. The fed plate material collides with the stopper and stops on the turning lever. After stopping the plate material, the hydraulic cylinder is operated to turn the turning lever upward. The turning rotates the plate material so that the front and back of the plate material are reversed.

実開平５−２４６２１号公報Japanese Utility Model Publication No. 5-24621 特開平５−１９３７２７号公報Japanese Patent Laid-Open No. 5-193727 特開平６−４８５５３号公報Japanese Patent Laid-Open No. 6-48553

しかしながら、特許文献２の反転装置には、以下のような問題があった。   However, the reversing device of Patent Document 2 has the following problems.

特許文献２の反転装置は、板材を反転させるために必要な力を油圧シリンダから得ている。油圧シリンダを設けると、反転装置が大型化、複雑化してしまい、さらには製造コストが増大するという問題があった。   The reversing device of Patent Document 2 obtains the force necessary for reversing the plate material from the hydraulic cylinder. When the hydraulic cylinder is provided, there is a problem that the reversing device becomes large and complicated, and further, the manufacturing cost increases.

また、板材を停止させた後に反転させるため、板材の停止確認から油圧シリンダの作動開始までに無駄な時間が生じてしまうことや、油圧シリンダを伸長させるには比較的長い時間がかかってしまうことから、反転動作を素早く行うことができないという問題があった。   In addition, since the plate material is reversed after being stopped, useless time is generated from the confirmation of the plate material stop until the hydraulic cylinder starts operating, and it takes a relatively long time to extend the hydraulic cylinder. Therefore, there is a problem that the reversing operation cannot be performed quickly.

また、油圧シリンダが縮退するまでは、次の反転動作を行うことができず、反転作業の効率が低いという問題があった。   Further, the next reversing operation cannot be performed until the hydraulic cylinder is retracted, and there is a problem that the efficiency of the reversing work is low.

さらには、ストッパに板材を衝突させるので、その衝撃により板材が割れてしまうという問題があった。   Furthermore, since the plate material collides with the stopper, there is a problem that the plate material is broken by the impact.

そこで、本発明の目的は、上記課題を解決し、板材の反転を確実かつ迅速に行いつつ、構造の単純化を図ることができる板材反転装置を提供することにある。   Therefore, an object of the present invention is to provide a plate material reversing apparatus that can solve the above-described problems and can simplify the structure while reliably and quickly reversing the plate material.

上記目的を達成するために本発明は、板材の表裏を反転させるための板材反転装置であって、板材を搬送する搬送装置と、その搬送装置によって搬送される板材が衝突され、その板材の慣性力により回転される受け部材と、上記板材が上記受け部材に衝突した時に、その板材の裏面側に位置するように上記受け部材に固定された返し部材であって、上記受け部材の回転と同時に回転して、板材を裏面側から押し上げて反転させる返し部材とを備えたものである。   In order to achieve the above object, the present invention is a plate reversing device for reversing the front and back of a plate material, the conveying device for conveying the plate material and the plate material conveyed by the conveying device collide, and the inertia of the plate material A receiving member rotated by force, and a return member fixed to the receiving member so as to be positioned on the back side of the plate when the plate collides with the receiving member, and simultaneously with the rotation of the receiving member A rotating member that rotates and pushes up the plate material from the back side and reverses the plate member is provided.

好ましくは、上記受け部材が、上記板材との衝突位置よりも下方に回転中心を有し、上記板材との衝突時に上記搬送装置の搬送方向前方に向かい回転するものである。   Preferably, the receiving member has a center of rotation below a position where it collides with the plate material, and rotates forward in the conveying direction of the conveying device when colliding with the plate material.

好ましくは、上記搬送装置が傾斜させて設けられたローラコンベアからなるものである。   Preferably, the conveying device is composed of a roller conveyor provided to be inclined.

好ましくは、上記受け部材の回転終了位置を規定するためのストッパであって、回転終了時に上記受け部材にかかる衝撃を緩衝するための衝撃緩衝手段を有するストッパをさらに備えたものである。   Preferably, the stopper further includes a stopper for defining a rotation end position of the receiving member, and having an impact buffering means for buffering an impact applied to the receiving member at the end of the rotation.

好ましくは、上記受け部材を原点位置に戻すための復帰手段をさらに備えたものである。   Preferably, there is further provided return means for returning the receiving member to the origin position.

本発明によれば、板材を確実に反転させると共に、板材反転装置の単純化を図ることができる。板材の反転動作を素早く行うことができるという優れた効果を発揮するものである。   According to the present invention, the plate material can be reliably reversed and the plate material reversing device can be simplified. It exhibits an excellent effect that the plate material can be reversed quickly.

以下、本発明の好適な一実施形態を添付図面に基づいて詳述する。   Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

本実施形態の板材反転装置は、板材の表裏を反転させるためのものであり、例えば、製材設備などに設けられる。その板材反転装置は、前工程の加工装置などから不整面（被処理面）を下向きにして搬出される長尺な板材を、次工程の加工装置などで不整面に処理を施すために、反転させるものである。ここで、板材の表とは、板材反転装置に搬入される板材の上面側をいい、下面側を裏とする。また、不整面とは、起伏を有する面や傾斜面などであり、本実施形態では、後述するように断面半円状の曲面であるが、断面形状はこれに限られるものではなく、例えば四角形でも良い。   The plate material reversing device of this embodiment is for reversing the front and back of a plate material, and is provided, for example, in a lumber facility. The plate reversing device reverses the long plate material that is unloaded from the processing device in the previous process with the irregular surface (surface to be processed) facing down to process the irregular surface with the processing device in the next process. It is something to be made. Here, the front surface of the plate material means the upper surface side of the plate material carried into the plate material reversing device, and the lower surface side is the back. Further, the irregular surface is a surface having an undulation, an inclined surface, and the like. In this embodiment, the surface is a semicircular curved surface as described later. However, the sectional shape is not limited to this, for example, a rectangular shape. But it ’s okay.

図１に基づき製材設備の概略構造を説明する。   The schematic structure of the lumber facility will be described with reference to FIG.

製材設備３１は原木（例えば、丸太など）５１を加工して製材（板材）５３を作製するためのもので、製材設備３１には各製材工程を行うための装置３５〜４０がタンデムに配置される。製材設備３１は、上流側から順に、原木投入装置３５、原木曲がり測定装置３６、原木曲がり削り加工装置３７、帯鋸盤加工装置３８、板材反転装置３９、プレーナ４０を備える。さらに、製材設備３１は、製材５３を集積するための１号〜３号板積機４１〜４３と板材５２および製材５３を搬送するための第一〜第四コンベア４４〜４７（具体的にはローラコンベア）とを備える。   The lumber equipment 31 is for processing a log (for example, log) 51 to produce a lumber (plate material) 53. In the lumber equipment 31, apparatuses 35 to 40 for performing each lumbering process are arranged in tandem. The The lumber equipment 31 includes, in order from the upstream side, a log input device 35, a log bending measuring device 36, a log bending processing device 37, a band saw processing device 38, a plate material reversing device 39, and a planar 40. Furthermore, the lumber equipment 31 includes No. 1 to No. 3 plate stackers 41 to 43 for accumulating the lumber 53, and first to fourth conveyors 44 to 47 (specifically, for conveying the plate material 52 and the lumber 53). A roller conveyor).

原木投入装置３５により投入された原木５１は、原木曲がり測定装置３６と原木曲がり削り加工装置３７とで曲がり測定と曲がり削り加工とがなされる。その後、原木５１は帯鋸盤加工装置３８により長手方向に沿って分割され、略半円状の不整面５２ａと、平面（切断面）５２ｂと備えたを断面略半月状の板材５２に加工される。その板材５２の不整面５２ａがプレーナ４０により加工されて、板材５２は板厚が均一な製材５３となり、その製材５３は１号〜３号板積機に集積される。   The log 51 input by the log input device 35 is subjected to bending measurement and bending by the log bending measuring device 36 and the log bending device 37. Thereafter, the raw wood 51 is divided along the longitudinal direction by the band saw machine 38 and processed into a plate material 52 having a substantially semicircular irregular surface 52a and a flat surface (cut surface) 52b having a substantially semicircular cross section. . The irregular surface 52a of the plate material 52 is processed by the planar 40, so that the plate material 52 becomes a lumber 53 having a uniform plate thickness, and the lumber 53 is accumulated in No. 1 to No. 3 plate stackers.

ところで、プレーナ４０は板材５２に対して上面側から加工を行うものであるが、帯鋸盤加工装置３８から搬出される板材５２は、不整面（被削面）５２ａを下向きに搬出される。したがって、プレーナ４０に搬入する前に、板材５２を反転させて不整面５２ａを上向きにする必要がある。そこで、本実施形態の板材反転装置３９が用いられる。   By the way, although the planar 40 processes the board | plate material 52 from an upper surface side, the board | plate material 52 carried out from the band saw machine 38 is carried out so that the irregular surface (work surface) 52a may face down. Therefore, before carrying in to the planar 40, it is necessary to reverse the board | plate material 52 and to make the irregular surface 52a face up. Therefore, the plate material reversing device 39 of this embodiment is used.

図２および図３に基づき板材反転装置３９を説明する。   The plate material reversing device 39 will be described with reference to FIGS.

板材反転装置３９の上流（前工程）側には、帯鋸盤加工装置３８から板材５２を搬出するための第一のコンベア４４が配置される。板材反転装置３９の下流（次工程）側には、板材反転装置３９から板材５２をプレーナ４０へと搬入するための第二のコンベア４５が配置される。それら第一および第二のコンベア４４、４５は略平行に並べて配置されており、板材５２を板材５２の長手方向に沿って搬送する（第一および第二のコンベア４４、４５の搬送方向を図２中点線の矢印で示す）。第一のコンベア４４には、搬送される板材５２の停止位置を規定するためのストッパ４４ａが設けられる。   On the upstream (previous process) side of the plate material reversing device 39, a first conveyor 44 for carrying out the plate material 52 from the band saw machine 38 is disposed. A second conveyor 45 for carrying the plate material 52 from the plate material reversing device 39 to the planar 40 is disposed on the downstream (next process) side of the plate material reversing device 39. The first and second conveyors 44 and 45 are arranged substantially in parallel, and convey the plate material 52 along the longitudinal direction of the plate material 52 (the conveyance direction of the first and second conveyors 44 and 45 is illustrated). 2 indicated by a dotted arrow). The first conveyor 44 is provided with a stopper 44 a for defining a stop position of the transported plate material 52.

板材反転装置３９は、板材５２を搬送する搬送装置４と、板材５２を反転させる反転部５とを備える。   The plate material reversing device 39 includes a transport device 4 that transports the plate material 52 and a reversing unit 5 that reverses the plate material 52.

搬送装置４は、板材５２を付勢しつつ、板材５２の幅方向に沿って板材５２を搬送する（搬送方向を図２中実線の矢印で示す）。本実施形態の搬送装置４は、板材５２が自身の自重により付勢されるように、傾斜させて設けられる（図３参照）。具体的には、搬送装置４は、所定の角度で傾斜させて設けられたローラコンベア６からなる。そのローラコンベア６の上流側の端部と同じ高さ位置に、第一のコンベア４５が配置され、ローラコンベア６の下流側の端部と同じ高さ位置に、第二のコンベア４５が配置される。したがって、第二のコンベア４５は、第一のコンベア４４よりも低い高さ位置に配置される。   The conveying device 4 conveys the plate material 52 along the width direction of the plate material 52 while urging the plate material 52 (the conveyance direction is indicated by a solid arrow in FIG. 2). The conveying device 4 of the present embodiment is provided to be inclined so that the plate material 52 is urged by its own weight (see FIG. 3). Specifically, the conveying device 4 is composed of a roller conveyor 6 provided to be inclined at a predetermined angle. The first conveyor 45 is disposed at the same height as the upstream end of the roller conveyor 6, and the second conveyor 45 is disposed at the same height as the downstream end of the roller conveyor 6. The Therefore, the second conveyor 45 is disposed at a lower height position than the first conveyor 44.

さらに、ローラコンベア６の上流側には、第一のコンベア４４からローラコンベア６に板材５２を搬送する第一の横送りコンベア１８が設けられる。ローラコンベア６の下流側には、反転後の板材５２をローラコンベア６から第二のコンベア４５に搬送する第二の横送りコンベア１９が設けられ、その第二の横送りコンベア１９は、第一のコンベア４４から第二のコンベア４５まで延出する。   Further, on the upstream side of the roller conveyor 6, a first transverse conveyor 18 that conveys the plate material 52 from the first conveyor 44 to the roller conveyor 6 is provided. On the downstream side of the roller conveyor 6, a second lateral feed conveyor 19 is provided for transporting the inverted plate material 52 from the roller conveyor 6 to the second conveyor 45, and the second lateral feed conveyor 19 is Extend from the conveyor 44 to the second conveyor 45.

ローラコンベア６は、搬送方向に間隔を隔てて配置された複数のローラ６ａを備え、それらローラ６ａは、回動自在に支持される。第一および第二の横送りコンベア１８、１９は、例えば、複数のチェーンコンベアを板材５２の長手方向に並べて構成される。   The roller conveyor 6 includes a plurality of rollers 6a arranged at intervals in the transport direction, and these rollers 6a are supported rotatably. The first and second transverse feed conveyors 18 and 19 are configured by, for example, arranging a plurality of chain conveyors in the longitudinal direction of the plate material 52.

反転部５は、ローラコンベア６の下流部分に配置される。図３に示すように、反転部５は、受け部材８とその受け部材８に固定された返し部材９とを備える。   The reversing unit 5 is disposed in the downstream portion of the roller conveyor 6. As shown in FIG. 3, the reversing unit 5 includes a receiving member 8 and a return member 9 fixed to the receiving member 8.

受け部材８は、ローラコンベア６によって搬送される板材５２が衝突され、その板材５２の慣性力により回転される。受け部材８は、板材５２との衝突位置よりも下方に回転中心を有する。具体的には、ローラコンベア６の下方に、ローラコンベア６の搬送方向と直交して延出する回転軸１０が設けられ、その回転軸１０に受け部材８が支持される。受け部材８は、回転軸１０から上方に延出してローラコンベア６を貫通し、ローラコンベア６から所定長さ突出する。本実施形態の受け部材８は、図３に実線で示すように、通常（すなわち、板材５２が衝突しないときは）、搬送方向に対して略垂直に延出する。この位置を原点位置という。   The plate member 52 conveyed by the roller conveyor 6 collides with the receiving member 8, and is rotated by the inertial force of the plate member 52. The receiving member 8 has a center of rotation below the position of collision with the plate member 52. Specifically, a rotating shaft 10 extending perpendicular to the conveying direction of the roller conveyor 6 is provided below the roller conveyor 6, and the receiving member 8 is supported on the rotating shaft 10. The receiving member 8 extends upward from the rotating shaft 10, passes through the roller conveyor 6, and protrudes from the roller conveyor 6 by a predetermined length. As shown by a solid line in FIG. 3, the receiving member 8 of the present embodiment normally extends substantially perpendicularly to the transport direction (that is, when the plate material 52 does not collide). This position is called the origin position.

返し部材９は、受け部材８が板材５２と衝突する時に板材５２の裏面（不整面）５２ａ側に位置するように設けられる。具体的には、返し部材９は、ローラコンベア６よりも下方の受け部材８に固定され、その受け部材８から搬送方向後方に延出する。本実施形態では、返し部材９が受け部材８に対して略垂直に延出し、受け部材８と返し部材９とが全体としてＴ字状に形成される。したがって、受け部材８が原点位置にある場合に、返し部材９は搬送方向と略平行に延出する。返し部材９は、受け部材８の回転時にローラコンベア６から突出するような長さに形成される。   The return member 9 is provided so as to be positioned on the back surface (irregular surface) 52 a side of the plate material 52 when the receiving member 8 collides with the plate material 52. Specifically, the return member 9 is fixed to the receiving member 8 below the roller conveyor 6 and extends backward from the receiving member 8 in the conveying direction. In this embodiment, the return member 9 extends substantially perpendicular to the receiving member 8, and the receiving member 8 and the return member 9 are formed in a T shape as a whole. Therefore, when the receiving member 8 is at the origin position, the return member 9 extends substantially parallel to the transport direction. The return member 9 is formed in such a length as to protrude from the roller conveyor 6 when the receiving member 8 rotates.

ローラコンベア６には、上述の受け部材８と返し部材９とが、ローラコンベア６よりも上側に突出することを許容するための図示しない穴部が形成されている。   The roller conveyor 6 is formed with a hole (not shown) for allowing the receiving member 8 and the return member 9 to protrude above the roller conveyor 6.

板材反転装置３９は、受け部材８（反転部５）の回転終了位置を規定するためのストッパ１１をさらに備える。そのストッパ１１は、回転終了時に受け部材８にかかる衝撃を緩衝するための衝撃緩衝手段を有する。ストッパ１１は、受け部材８の回転中心よりも搬送方向前方で、回転中心と略同じ高さ位置に設けられる。したがって、ストッパ１１は、受け部材８が略水平となりかつ返し部材９が略鉛直となる回転位置を、回転終了位置として規定する。衝撃緩衝手段は、弾性体やオイルダンパを用いることができる。本実施形態では、ストッパ１１が鉛直方向に伸縮可能なコイルばねからなり、ストッパ１１自身が衝撃緩衝手段を兼ねる。   The plate material reversing device 39 further includes a stopper 11 for defining the rotation end position of the receiving member 8 (reversing portion 5). The stopper 11 has an impact buffering means for buffering an impact applied to the receiving member 8 at the end of rotation. The stopper 11 is provided in front of the rotation center of the receiving member 8 in the conveying direction and at a height position substantially the same as the rotation center. Therefore, the stopper 11 defines the rotation position where the receiving member 8 is substantially horizontal and the return member 9 is substantially vertical as the rotation end position. As the impact buffering means, an elastic body or an oil damper can be used. In the present embodiment, the stopper 11 is formed of a coil spring that can extend and contract in the vertical direction, and the stopper 11 itself also serves as an impact buffering means.

図３に示すように、板材反転装置３９は、受け部材８を原点位置に戻すための復帰手段１２をさらに備える。本実施形態では、復帰手段１２が、受け部材８の原点位置を規定する。復帰手段１２は、原点位置にある返し部材９を下方から支持するための支持部材１４と、返し部材９（反転部５）を板材５２の衝撃による回転方向と反対方向に付勢する付勢手段１５とを有する。付勢手段１５は、弾性体を用いることができ、本実施形態では、一端が支持部材１４の先端部に取付られると共に他端が返し部材９の下面に取り付けられたコイルばね１６からなる。   As shown in FIG. 3, the plate reversing device 39 further includes return means 12 for returning the receiving member 8 to the origin position. In the present embodiment, the return means 12 defines the origin position of the receiving member 8. The return means 12 includes a support member 14 for supporting the return member 9 at the origin position from below, and an urging means for urging the return member 9 (reversing portion 5) in the direction opposite to the rotation direction due to the impact of the plate member 52. 15. The biasing means 15 can use an elastic body. In this embodiment, the biasing means 15 includes a coil spring 16 having one end attached to the distal end portion of the support member 14 and the other end attached to the lower surface of the return member 9.

以上の反転部５とストッパ１１と復帰手段１２とが、板材５２の長手方向に間隔を隔てて複数設けられる（図２参照）。回転軸１０は各受け部材８毎に設けられる。   A plurality of the reversing parts 5, the stoppers 11, and the return means 12 are provided at intervals in the longitudinal direction of the plate member 52 (see FIG. 2). The rotating shaft 10 is provided for each receiving member 8.

次に、本実施形態の板材反転装置３９の作用を説明する。   Next, the operation of the plate reversing device 39 of this embodiment will be described.

図２に示すように、第一のコンベア４４により帯鋸盤加工装置３８から不整面５２ａが下向きの状態で搬出された板材５２は、第一のコンベア４４のストッパ４４ａに突き当たり停止する。停止後、板材５２は第一の横送りコンベア１８により幅方向に搬送されて板材反転装置３９に搬入される。   As shown in FIG. 2, the plate material 52 carried out from the band saw machine 38 by the first conveyor 44 with the irregular surface 52 a facing downward contacts the stopper 44 a of the first conveyor 44 and stops. After the stop, the plate material 52 is conveyed in the width direction by the first transverse feed conveyor 18 and is carried into the plate material reversing device 39.

図４に示すように、第一の横送りコンベア１８からローラコンベア６に搬入された板材５２は、ローラコンベア６に沿って滑り下方へ搬送される。その搬送時に、板材５２は自重により付勢される。板材５２は、所定の慣性力が付与された後、受け部材８に衝突する。   As shown in FIG. 4, the plate material 52 carried into the roller conveyor 6 from the first lateral feed conveyor 18 is slid along the roller conveyor 6 and conveyed downward. During the conveyance, the plate material 52 is urged by its own weight. The plate member 52 collides with the receiving member 8 after a predetermined inertial force is applied.

図５に示すように、板材５２が衝突された受け部材８は、板材５２の慣性力により、回転軸１０を中心に搬送装置４の搬送方向前方に向かい回転する。その受け部材８の回転と同時に返し部材９が回転する。その回転により返し部材９の上面が板材５２の裏面（不整面）５２ａに当接し、返し部材９が板材５２を裏面５２ａ側かつ下方から押し上げる。押し上げられた板材５２は、搬送方向前方側の端部を支点として起こされて反転する（図６参照）。表裏が反転して不整面５２ａが上向きになった板材５２は、第二の横送りコンベア１９によりに幅方向に第二のコンベア４５まで搬送された後、第二のコンベア４５により長手方向に搬送されてプレーナ４０に搬入される。   As shown in FIG. 5, the receiving member 8 with which the plate material 52 collides rotates about the rotation shaft 10 toward the front in the conveyance direction of the conveyance device 4 due to the inertial force of the plate material 52. The return member 9 rotates simultaneously with the rotation of the receiving member 8. By the rotation, the upper surface of the return member 9 comes into contact with the back surface (irregular surface) 52a of the plate material 52, and the return member 9 pushes up the plate material 52 from the back surface 52a side and from below. The pushed-up plate material 52 is raised with the end portion on the front side in the transport direction as a fulcrum and is reversed (see FIG. 6). The plate material 52 whose front and back surfaces are reversed and the irregular surface 52a faces upward is conveyed to the second conveyor 45 in the width direction by the second transverse feed conveyor 19 and then conveyed in the longitudinal direction by the second conveyor 45. Then, it is carried into the planar 40.

一方、回転した受け部材８は、ストッパ１１により受け止められて回転が停止する。その回転停止時に、ストッパ１１により受け部材８の衝撃が吸収される。   On the other hand, the rotated receiving member 8 is received by the stopper 11 and stops rotating. When the rotation stops, the stopper 11 absorbs the impact of the receiving member 8.

回転停止後、受け部材８と返し部材９とがコイルばね１６により、反対方向に回転し、原点位置へと引き戻される。このように、本実施形態では、板材反転装置３９の原点復帰が自力で自動的に行われる。   After the rotation is stopped, the receiving member 8 and the return member 9 are rotated in opposite directions by the coil spring 16 and are pulled back to the origin position. Thus, in this embodiment, the origin return of the plate material reversing device 39 is automatically performed by itself.

また、受け部材８が衝突時に回転するので、板材５２は受け部材８により緩やかに受け止められることとなり、板材５２には衝突による衝撃が加わらない。   Further, since the receiving member 8 rotates at the time of the collision, the plate material 52 is gently received by the receiving member 8, and the plate material 52 is not subjected to an impact due to the collision.

したがって、板材５２には衝突の衝撃による割れが生じない。その結果、歩留まりを向上させることができる。また、割れた板材５２を除去する作業が不要となり、生産性を格段に向上させることができる。   Therefore, the plate material 52 is not cracked by the impact of the collision. As a result, the yield can be improved. Moreover, the operation | work which removes the broken board | plate material 52 becomes unnecessary, and productivity can be improved significantly.

また、返し部材９が板材５２を支持しつつ回転するので、板材５２の反転（回転）動作が返し部材９により定められ、板材５２は速度などによらず一定した反転動作を行うこととなる。したがって、板材５２を確実に反転させることができる。   Further, since the return member 9 rotates while supporting the plate member 52, the reverse (rotation) operation of the plate member 52 is determined by the return member 9, and the plate member 52 performs a constant reverse operation regardless of the speed or the like. Therefore, the plate material 52 can be reliably reversed.

ところで、板材５２を反転させるために必要な力（返し部材が板材５２を押し上げる力）は、板材５２の重量が大きいほど大きくなる。本実施形態では、板材５２の慣性力を利用して板材５２を反転させるようにしている。板材５２の慣性力は、板材５２の重量が大きいほど大きくなるので、板材５２の重量が大きくなると、その板材５２を反転させる力も大きくなる。したがって、板材５２の重量（寸法）の違いに関係なく、板材５２を確実に反転させることができる。   By the way, the force required to reverse the plate material 52 (the force by which the return member pushes up the plate material 52) increases as the weight of the plate material 52 increases. In this embodiment, the plate material 52 is reversed using the inertial force of the plate material 52. Since the inertial force of the plate material 52 increases as the weight of the plate material 52 increases, the force to reverse the plate material 52 increases as the weight of the plate material 52 increases. Therefore, regardless of the difference in the weight (size) of the plate material 52, the plate material 52 can be reliably reversed.

ここで、本実施形態の板材反転装置３９と、図７および図８に示した従来の板材反転装置７１とを用いて板材の反転不良率を確認したところ、従来の板材反転装置７１の反転不良率が４１５枚／１，０００枚の４１．５％であったのに対して、本実施形態の板材反転装置３９の反転不良率は、２４枚／１，０００枚の２．４％であった。つまり、本実施形態の板材反転装置３９によれば、反転不良率を３９．１％低減することができ、板材の反転動作の確率が高められることを確認した。   Here, when the plate material reversal rate was confirmed using the plate reversing device 39 of the present embodiment and the conventional plate reversing device 71 shown in FIGS. 7 and 8, the reversal failure of the conventional plate reversing device 71 was confirmed. While the rate was 41.5% of 415 sheets / 1,000 sheets, the reversal failure rate of the plate material reversing device 39 of this embodiment was 2.4% of 24 sheets / 1,000 sheets. It was. That is, according to the plate material reversing device 39 of the present embodiment, it was confirmed that the reversal failure rate can be reduced by 39.1%, and the probability of the plate material reversal operation is increased.

したがって、プレーナ４０に搬入される板材５２は、不整面５２ａが確実に上向きとなり、プレーナ加工後の板厚精度を格段に向上させることができる。また、反転不良の修正作業が不要となる。   Therefore, the plate material 52 carried into the planar 40 has the irregular surface 52a surely facing upward, and the plate thickness accuracy after the planar processing can be remarkably improved. In addition, it is not necessary to correct the reversal failure.

特に、本実施形態の板材反転装置は、板材の慣性力を利用して板材を反転させることを特徴とする。すなわち、受け部材は、搬送される板材の停止位置を規定するためものではなく、板材の自重に基づく慣性力により回転することで返し部材に板材を押し上げさせるためのものである。これにより、本実施形態の板材反転装置は、返し部材を回転させるための積極的な駆動手段が不要となる。また、板材を停止させずに反転させるので、反転動作を素早く行うことができる。   In particular, the plate reversing device of the present embodiment is characterized by reversing the plate using the inertial force of the plate. That is, the receiving member is not for defining the stop position of the transported plate material, but for causing the return member to push up the plate material by rotating by an inertial force based on the weight of the plate material. As a result, the plate reversing device of the present embodiment does not require a positive driving means for rotating the return member. Further, since the plate material is reversed without stopping, the reversing operation can be performed quickly.

したがって、板材反転装置の反転機構の単純化を図ることができ、製造コストの低減を図ることができる。   Therefore, the reversing mechanism of the plate material reversing device can be simplified, and the manufacturing cost can be reduced.

また、衝撃緩衝手段を設けることで、受け部材８や返し部材９の破損を防止することができる。   Further, by providing the shock absorbing means, it is possible to prevent the receiving member 8 and the return member 9 from being damaged.

また、復帰手段１２を設けることで、板材５２の反転を連続して行うことができる。   Further, by providing the return means 12, the plate material 52 can be continuously reversed.

なお、本発明は、上述の実施形態に限定されず、様々な変形例や応用例が考えられるものである。   In addition, this invention is not limited to the above-mentioned embodiment, Various modifications and application examples can be considered.

例えば、搬送装置は、傾斜させて設けることが好ましいが、平行に設けてもよい。その場合、板材が自重により付勢されないので、板材に慣性力を付与する装置が必要となる。   For example, the conveying device is preferably provided in an inclined manner, but may be provided in parallel. In that case, since the plate material is not biased by its own weight, a device for applying an inertial force to the plate material is required.

また、搬送装置は、ローラコンベアに限定されず、様々なものが可能である。   Moreover, a conveying apparatus is not limited to a roller conveyor, Various things are possible.

また、復帰手段を、回転軸１０に渦巻きばねを設けることで構成しても良い。   Further, the return means may be configured by providing a spiral spring on the rotating shaft 10.

また、ストッパの衝撃緩衝手段を弾性体で構成した場合に、回転終了時に衝撃を吸収して縮退した弾性体の復元力により、受け部材を原点位置に原点位置に戻すことが考えられる。すなわち、ストッパの衝撃緩衝手段を復帰手段として共用することが考えられる。   In addition, when the impact buffering means of the stopper is made of an elastic body, it is conceivable that the receiving member is returned to the origin position by the restoring force of the elastic body which has absorbed the impact at the end of the rotation and has shrunk. In other words, it is conceivable to use the shock absorbing means of the stopper as the returning means.

また、板材反転装置を、フリッチ材にプレーナ加工を施して板厚が均一な製材を作製する製材設備に設けても良い。   Further, the plate reversing device may be provided in a lumber facility for producing a lumber having a uniform plate thickness by subjecting the flitch material to planar processing.

本発明の一実施形態による板材反転装置が設けられた製材設備の概略を示す平面図である。It is a top view which shows the outline of the lumber equipment provided with the board | plate material inversion apparatus by one Embodiment of this invention. 本実施形態の板材反転装置の平面図を示す。The top view of the board | plate material inversion apparatus of this embodiment is shown. 本実施形態の板材反転装置の側面図を示す。The side view of the board | plate material inversion apparatus of this embodiment is shown. 本実施形態の板材反転装置の部分側面図を示し、受け部材が原点位置にある状態を示す。The partial side view of the board | plate material inversion apparatus of this embodiment is shown, and the state which has a receiving member in an origin position is shown. 本実施形態の板材反転装置の部分側面図を示し、受け部材が回転している状態を示す。The partial side view of the board | plate material inversion apparatus of this embodiment is shown, and the state which the receiving member is rotating is shown. 本実施形態の板材反転装置の部分側面図を示し、受け部材が回転終了位置にある状態を示す。The partial side view of the board | plate material inversion apparatus of this embodiment is shown, and the state which has a receiving member in a rotation completion position is shown. 従来の板材反転装置の平面図を示す。The top view of the conventional board | plate material inversion apparatus is shown. 従来の板材反転装置の側面図を示す。The side view of the conventional board | plate material inversion apparatus is shown.

符号の説明Explanation of symbols

４ 搬送装置
６ ローラコンベア
８ 受け部材
９ 返し部材
１１ ストッパ
１２ 復帰手段
３９ 板材反転装置
５２ 板材
4 Conveying device 6 Roller conveyor 8 Receiving member 9 Returning member 11 Stopper 12 Returning means 39 Plate material reversing device 52 Plate material

Claims (5)

板材の表裏を反転させるための板材反転装置であって、
板材を搬送する搬送装置と、
その搬送装置によって搬送される板材が衝突され、その板材の慣性力により回転される受け部材と、
上記板材が上記受け部材に衝突した時に、その板材の裏面側に位置するように上記受け部材に固定された返し部材であって、上記受け部材の回転と同時に回転して、上記板材を裏面側から押し上げて反転させる返し部材とを備えたことを特徴とする板材反転装置。 A plate reversing device for reversing the front and back of a plate,
A conveying device for conveying a plate material;
A receiving member which is collided with the plate material conveyed by the conveying device and rotated by the inertial force of the plate material;
When the plate material collides with the receiving member, the return member is fixed to the receiving member so as to be positioned on the back surface side of the plate material, and is rotated simultaneously with the rotation of the receiving member so that the plate material is moved to the back surface side. A plate material reversing device comprising: a return member that is pushed up and reversed. 上記受け部材が、上記板材との衝突位置よりも下方に回転中心を有し、上記板材との衝突時に上記搬送装置の搬送方向前方に向かい回転する請求項１記載の板材反転装置。   2. The plate reversing device according to claim 1, wherein the receiving member has a rotation center below a collision position with the plate material, and rotates forward in the conveyance direction of the conveyance device at the time of collision with the plate material. 上記搬送装置が傾斜させて設けられたローラコンベアからなる請求項１または２に記載の板材反転装置。   The plate material reversing device according to claim 1, wherein the conveying device is composed of a roller conveyor provided to be inclined. 上記受け部材の回転終了位置を規定するためのストッパであって、回転終了時に上記受け部材にかかる衝撃を緩衝するための衝撃緩衝手段を有するストッパをさらに備えた請求項１から３いずれかに記載の板材反転装置。   The stopper for prescribing the rotation end position of the receiving member, further comprising a stopper having an impact buffering means for buffering an impact applied to the receiving member at the end of the rotation. Plate material reversing device. 上記受け部材を原点位置に戻すための復帰手段をさらに備えた請求項１から４いずれかに記載の板材反転装置。
5. The plate material reversing device according to claim 1, further comprising return means for returning the receiving member to the origin position.
JP2004346999A 2004-11-30 2004-11-30 Plate reversing device Expired - Fee Related JP4517833B2 (en)

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JP4806671B2 (en) * 2007-09-28 2011-11-02 ジヤトコ株式会社 Work reversing device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000072231A (en) * 1998-08-28 2000-03-07 Ushio U Tec:Kk Reversing apparatus

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Publication number Priority date Publication date Assignee Title
JPS5510028Y2 (en) * 1974-06-26 1980-03-05
JPS60103630U (en) * 1983-12-22 1985-07-15 本田技研工業株式会社 Workpiece orientation change device
JPH05193727A (en) * 1992-01-22 1993-08-03 Romatetsuku Kk Arranging apparatus for obverse and reverse of board

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000072231A (en) * 1998-08-28 2000-03-07 Ushio U Tec:Kk Reversing apparatus

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