WO2018168761A1

WO2018168761A1 - Rebar cutting machine and rebar cutting device

Info

Publication number: WO2018168761A1
Application number: PCT/JP2018/009488
Authority: WO
Inventors: 雲強高; 忠博船津
Original assignee: 東陽建設工機株式会社
Priority date: 2017-03-13
Filing date: 2018-03-12
Publication date: 2018-09-20
Also published as: CN110382150B; KR102069063B1; KR20190113994A; CN110382150A

Abstract

Provided is a rebar cutting machine that suppresses the deformation of an incision in a rebar when the rebar is cut. The present invention is provided with a fixed blade, a movable blade capable of an operation for approaching the fixed blade, and a rebar cutting machine body 3A to which the fixed blade and the movable blade are provided so as to be positionally displaced along the longitudinal direction of a rebar 20 disposed between these blades. Additionally provided are: a rebar cutting space in which the fixed blade and the movable blade are disposed; a stage for receiving the rebar 20 prior to cutting, together with the fixed blade on the lower side of the movable blade; and a stage movement device 25 that is attached to the rebar cutting machine body 3A and that moves the stage in a vertical direction within the rebar cutting space. The stage movement device 25 has an urging means for urging the stage upward, and permits the stage to be lowered together with cut rebar in accompaniment with lowering of the movable blade.

Description

鉄筋切断機及び鉄筋切断装置Rebar cutting machine and rebar cutting device

　本発明は、固定刃と、前記固定刃に対して近接操作自在な可動刃と、前記固定刃と前記可動刃をこれらの刃の間に配置した鉄筋の長手方向に位置ずれさせて設けてある鉄筋切断機本体とを備える鉄筋切断機及び鉄筋切断装置に関する。 The present invention is provided with a fixed blade, a movable blade that can be operated in proximity to the fixed blade, and the fixed blade and the movable blade that are displaced in the longitudinal direction of a reinforcing bar disposed between these blades. The present invention relates to a reinforcing bar cutting machine and a reinforcing bar cutting device including a reinforcing bar cutting machine body.

　従来、一般的に鉄筋切断機における固定刃と可動刃とが配置された鉄筋切断空間内では、可動刃が上下動するために、可動刃の下方は単に切断鉄筋の落下空間になっているだけであった（例えば、特許文献１参照）。
　そのために、図１１（ａ）～（ｃ）に示すように、可動刃２’の下降によって鉄筋２０’が切断されるときに、可動刃２’の下側で固定刃１’に近接する鉄筋部分が湾曲状に撓み、鉄筋２０’の切り口が大きく変形しやすい。この現象は、特許文献１のように、鉄筋切断空間の外側にスプリングで受ける退避機構を設けてあっても、固定刃から退避機構までの距離が遠いために変わらなかった。
　また、鉄筋を鉄筋切断機に供給する搬送コンベアの先端部に、上下搖動可能で、且つ、上方にバネで付勢するように取り付けてある鉄筋の補助受板を設け、可動刃の下降に伴って鉄筋が切断されるときに補助受板の先端が下降搖動して反力を吸収する装置も提案されていた（例えば、特許文献２参照）。 Conventionally, in a rebar cutting space in which a fixed blade and a movable blade are generally arranged in a rebar cutting machine, the movable blade moves up and down, so that the lower part of the movable blade is simply a space where the cutting rebar is dropped. (For example, see Patent Document 1).
Therefore, as shown in FIGS. 11A to 11C, when the reinforcing bar 20 ′ is cut by lowering the movable blade 2 ′, the reinforcing bar adjacent to the fixed blade 1 ′ below the movable blade 2 ′. The portion is bent in a curved shape, and the cut end of the reinforcing bar 20 ′ is easily deformed greatly. Even if a retraction mechanism received by a spring is provided outside the reinforcing bar cutting space as in Patent Document 1, this phenomenon does not change because the distance from the fixed blade to the retraction mechanism is long.
In addition, an auxiliary support plate for reinforcing bars that can be moved up and down and attached to the top of the conveyor to supply the reinforcing bars to the reinforcing bar cutting machine by a spring is provided. A device has also been proposed in which the tip of the auxiliary backing plate swings down and absorbs the reaction force when the reinforcing bar is cut (see, for example, Patent Document 2).

特開平８－１１０１５号公報JP-A-8-11015 実開平６－５７３３号公報Japanese Utility Model Publication No. 6-5733

　上述した装置も、補助受板が鉄筋切断機の固定刃からの距離が遠く、しかも、上下搖動によって反力を吸収する構造になっているために、可動刃の下降によって鉄筋が切断されるときに、可動刃の下側で固定刃に近接する鉄筋部分が湾曲状に撓み、鉄筋の切り口が変形するという問題を解決することにはならなかった。 In the above-described apparatus, the auxiliary backing plate is far away from the fixed blade of the rebar cutting machine, and has a structure that absorbs the reaction force by the vertical swing, so that the rebar is cut by lowering the movable blade. In addition, the problem that the rebar portion close to the fixed blade under the movable blade bends in a curved shape and the cut end of the rebar deforms cannot be solved.

　従って、本発明の目的は、上記問題点を解消し、鉄筋の切断時に鉄筋の切り口が変形するのを抑制する鉄筋切断機及び鉄筋切断装置を提供するところにある。 Therefore, an object of the present invention is to provide a rebar cutting machine and a rebar cutting device that eliminate the above-mentioned problems and suppress deformation of the cut end of the rebar when the rebar is cut.

　本発明の第１の特徴構成は、固定刃と、前記固定刃に対して近接操作自在な可動刃と、前記固定刃と前記可動刃をこれらの刃の間に配置した鉄筋の長手方向に位置ずれさせて設けてある鉄筋切断機本体とを備える鉄筋切断機であって、前記固定刃と前記可動刃とが配置された鉄筋切断空間内と、前記可動刃の下側で切断前の鉄筋を前記固定刃と共に受け止めるステージと、前記鉄筋切断機本体に取り付けられ、前記ステージを前記鉄筋切断空間内で上下移動させるステージ移動装置とを有し、前記ステージ移動装置は、前記ステージを上方に付勢する付勢手段を有し、前記ステージを前記可動刃の下降に伴って被切断鉄筋と共に下降するのを許容するところにある。 A first characteristic configuration of the present invention includes a fixed blade, a movable blade that can be operated in proximity to the fixed blade, and a longitudinal position of a reinforcing bar in which the fixed blade and the movable blade are disposed between the blades. A rebar cutting machine provided with a rebar cutting machine main body provided by being shifted, wherein a rebar before cutting is formed in a rebar cutting space in which the fixed blade and the movable blade are arranged, and below the movable blade. A stage that is received together with the fixed blade; and a stage moving device that is attached to the rebar cutting machine main body and moves the stage up and down in the rebar cutting space. The stage moving device urges the stage upward. And a biasing means for allowing the stage to be lowered together with the cut reinforcing bar as the movable blade is lowered.

　本発明の第１の特徴構成によれば、固定刃に対して可動刃を下降させて鉄筋を切断する際に、鉄筋は、固定刃と共にステージ移動装置のステージで受け止められる。さらに、可動刃の下降に伴って、鉄筋は、可動刃とその下方のステージとで挟まれた状態で、固定刃とその固定刃に近接作動する可動刃との間の仮想剪断面を境にして、可動刃と共に剪断されながら平行に下降しようとする。
　従って、可動刃の下側で固定刃に近接する鉄筋部分は湾曲状に撓むのが避けられ、鉄筋の切り口が大きく変形するのを抑制できる。 According to the first characteristic configuration of the present invention, when the movable blade is lowered relative to the fixed blade to cut the rebar, the rebar is received by the stage of the stage moving device together with the fixed blade. Further, as the movable blade descends, the rebar is sandwiched between the movable blade and the stage below it, with the virtual shear plane between the fixed blade and the movable blade operating in proximity to the fixed blade as a boundary. And trying to descend in parallel while being sheared with the movable blade.
Therefore, it is possible to avoid bending of the reinforcing bar portion adjacent to the fixed blade below the movable blade in a curved shape, and to greatly deform the cut end of the reinforcing bar.

　本発明の第２の特徴構成は、前記付勢手段は、バネ及び空気圧シリンダーの少なくともいずれか一つにより構成したところにある。 A second characteristic configuration of the present invention is that the urging means is configured by at least one of a spring and a pneumatic cylinder.

　本発明の第２の特徴構成によれば、簡単で安価にステージ移動装置を形成できる。 According to the second characteristic configuration of the present invention, the stage moving device can be formed easily and inexpensively.

　本発明の第３の特徴構成は、前記鉄筋切断機本体は、平面視でその正面側に前記固定刃に載置する鉄筋に対してその径方向に排出自在にする鉄筋排出口を有し、前記可動刃の刃先は、前記固定刃に載置する複数本の鉄筋に対して一端側の鉄筋に近い側ほど低くなる傾斜面に形成されてあり、前記ステージは、前記一端側の鉄筋に近い側から順次下降可能に構成されたところにある。 The third characteristic configuration of the present invention is that the reinforcing bar cutting machine body has a reinforcing bar discharge port that allows the reinforcing bar placed on the fixed blade to be discharged in the radial direction on the front side in a plan view, The cutting edge of the movable blade is formed on an inclined surface that becomes lower with respect to a plurality of reinforcing bars placed on the fixed blade as the side closer to the reinforcing bar on one end side, and the stage is close to the reinforcing bar on the one end side It is in a place that can be lowered sequentially from the side.

　本発明の第３の特徴構成によれば、本発明の第１の特徴構成による上述の作用効果を叶えることができるのに加えて、固定刃に載置する鉄筋が複数本の場合に、一端側の鉄筋から他端側の鉄筋にかけて順に、可動刃の刃先とステージとの間で鉄筋が挟持されながら切断され、可動刃に大きな負荷がかからず、全ての鉄筋を綺麗に切断できる。
　従って、鉄筋切断機で一度に切断加工する鉄筋の本数が多くなっても、夫々の鉄筋を、ほぼ均等に切り口の変形を抑制しながら切断することができ、鉄筋排出口から取り出すことができるようになる。 According to the third characteristic configuration of the present invention, in addition to being able to achieve the above-described operational effect according to the first characteristic configuration of the present invention, in the case where there are a plurality of reinforcing bars placed on the fixed blade, one end is provided. In order from the reinforcing bar on the side to the reinforcing bar on the other end side, the reinforcing bar is cut while being sandwiched between the cutting edge of the movable blade and the stage, so that a large load is not applied to the movable blade, and all the reinforcing bars can be cut cleanly.
Therefore, even if the number of rebars to be cut at once with a rebar cutting machine increases, each rebar can be cut almost uniformly while suppressing deformation of the cut end, and can be taken out from the rebar discharge port. become.

　本発明の第４の特徴構成は、前記鉄筋切断機本体は、平面視でその正面側に前記固定刃に載置する鉄筋に対してその径方向に排出自在にする鉄筋排出口を有し、前記可動刃の刃先は、前記固定刃に載置する複数本の鉄筋に対して前記鉄筋排出口に近い側ほど低くなる傾斜面に形成されてあり、前記ステージは、前記鉄筋排出口に近い側から奥にかけて順次下降可能に構成されたところにある。 According to a fourth feature of the present invention, the rebar cutting machine main body has a rebar discharge port that allows the rebar to be discharged in the radial direction with respect to the rebar placed on the fixed blade on the front side in plan view, The cutting edge of the movable blade is formed on an inclined surface that becomes lower with respect to the plurality of reinforcing bars placed on the fixed blade as the side closer to the reinforcing bar discharge port, and the stage is closer to the reinforcing bar discharge port. It is in a place that can be lowered sequentially from the back to the back.

　本発明の第４の特徴構成によれば、固定刃に載置する鉄筋が複数本の場合に、鉄筋排出口に近い側の物から順に、可動刃の刃先とステージとの間で鉄筋が挟持されながら切断され、可動刃に大きな負荷がかからず、全ての鉄筋を綺麗に切断できる。
　従って、鉄筋切断機で一度に切断加工する鉄筋の本数が多くなっても、夫々の鉄筋を、ほぼ均等に切り口の変形を抑制しながら切断することができ、鉄筋排出口から取り出すことができるようになる。
　その上、可動刃の刃先を、鉄筋排出口に近い側ほど低くなる傾斜面に形成し、且つ、ステージを鉄筋排出口に近い側から奥にかけて順次下降可能に構成してある。そのために、傾斜面を備えた可動刃が固定刃に対して下降して近接するに伴って、固定刃に載置される複数本の鉄筋が鉄筋排出口から逃げずに鉄筋排出口から奥に向けて押されて固定刃上を逃げようとする動きを、鉄筋排出側とは反対の奥部で阻止され、結果として全ての鉄筋を軽い負荷で確実に切断することができる。 According to the fourth characteristic configuration of the present invention, when there are a plurality of reinforcing bars placed on the fixed blade, the reinforcing bars are sandwiched between the blade edge of the movable blade and the stage in order from the one closer to the reinforcing bar discharge port. It is cut while being done, and a large load is not applied to the movable blade, and all the reinforcing bars can be cut cleanly.
Therefore, even if the number of rebars to be cut at once with a rebar cutting machine increases, each rebar can be cut almost uniformly while suppressing deformation of the cut end, and can be taken out from the rebar discharge port. become.
In addition, the cutting edge of the movable blade is formed on an inclined surface that becomes lower toward the side closer to the reinforcing bar discharge port, and the stage is configured to be able to descend sequentially from the side closer to the reinforcing bar discharge port to the back. Therefore, as the movable blade with the inclined surface descends and comes close to the fixed blade, the multiple reinforcing bars placed on the fixed blade do not escape from the reinforcing bar discharge port and go back from the reinforcing bar discharge port. The movement that is pushed toward and escapes from the fixed blade is prevented at the back part opposite to the reinforcing bar discharge side, and as a result, all the reinforcing bars can be reliably cut with a light load.

　本発明の第５の特徴構成は、平面視で前記鉄筋切断機本体の正面側に設けられ、前記固定刃に載置する鉄筋に対してその径方向に排出自在にする鉄筋排出口と、前記鉄筋切断空間内において、前記固定刃と前記可動刃との間の仮想剪断面に対して、鉄筋長手方向の上手側で、鉄筋を前記鉄筋排出口に押し出す第１押出装置と、前記鉄筋切断空間内において、前記仮想剪断面に対して、前記鉄筋長手方向の下手側で、鉄筋を前記鉄筋排出口に押し出す第２押出装置とをさらに有するところにある。 A fifth characteristic configuration of the present invention is a reinforcing bar discharge port provided on the front side of the reinforcing bar cutting machine main body in a plan view, the reinforcing bar discharging port being capable of discharging in a radial direction with respect to the reinforcing bar placed on the fixed blade, In a reinforcing bar cutting space, a first extruding device that pushes a reinforcing bar to the reinforcing bar discharge port on the upper side in the longitudinal direction of the reinforcing bar with respect to a virtual shear plane between the fixed blade and the movable blade, and the reinforcing bar cutting space Inside, it has the 2nd extrusion device which extrudes a reinforcing bar to the reinforcing bar discharge port on the lower side of the reinforcing bar longitudinal direction to the virtual shear surface.

　本発明の第５の特徴構成によれば、可動刃と固定刃を設けた鉄筋切断機の鉄筋切断空間内において、鉄筋の先端側が第２コンベア装置に載らないほどの搬出されにくい短尺の鉄筋を、切断した場合であっても、第２押出装置によって、鉄筋排出口から鉄筋切断機の正面側に排出される。また、鉄筋の切断に伴って後端側に残る鉄筋の残材は、例え第１コンベア装置に載らないほどの短いものであったとしても、鉄筋排出口から第１押出装置によって、鉄筋切断機の外側に排出される。
　従って、鉄筋切断機の鉄筋切断空間内に手を差し入れて短尺の所定長さの鉄筋や、短尺の鉄筋残材を取り出す必要がなく、確実に安全性を向上させられる。 According to the fifth characteristic configuration of the present invention, in the rebar cutting space of the rebar cutting machine provided with the movable blade and the fixed blade, the short rebar that is difficult to carry out so that the front end side of the rebar is not placed on the second conveyor device. Even if it is a case where it cut | disconnects, it is discharged | emitted by the 2nd extrusion apparatus to the front side of a rebar cutting machine from a rebar discharge port. Further, even if the remaining material of the reinforcing bar remaining on the rear end side with the cutting of the reinforcing bar is short enough not to be placed on the first conveyor device, the reinforcing bar cutting machine uses the first extrusion device from the reinforcing bar discharge port. Is discharged outside.
Therefore, it is not necessary to insert a hand into the reinforcing bar cutting space of the reinforcing bar cutting machine and take out a short length of reinforcing bar or a short length of reinforcing steel, and the safety can be improved reliably.

　本発明の第６の特徴構成は、平面視で前記鉄筋切断機本体の正面側に設けられ、前記固定刃に載置する鉄筋に対してその径方向に排出自在にする鉄筋排出口と、前記鉄筋切断空間内において、前記固定刃と前記可動刃との間の仮想剪断面に対して、鉄筋長手方向の上手側で、鉄筋を前記鉄筋排出口に押し出す第１押出装置と、前記鉄筋切断空間内において、前記仮想剪断面に対して、前記鉄筋長手方向の下手側で、鉄筋を前記鉄筋排出口に押し出す第２押出装置と、前記鉄筋排出口において、前記第１押出装置に対応する箇所を閉塞可能とする第１ガード板と、前記鉄筋排出口において、前記第２押出装置に対応する箇所を閉塞可能とする第２ガード板と、前記第１ガード板を前記第１押出装置の押出作動に基づいて閉塞状態から開放状態に切換え操作する第１駆動装置と、前記第２ガード板を前記第２押出装置の押出作動に基づいて閉塞状態から開放状態に切換え操作する第２駆動装置とをさらに有するところにある。 A sixth characteristic configuration of the present invention is a reinforcing bar discharge port which is provided on a front side of the reinforcing bar cutting machine main body in a plan view and allows the reinforcing bar placed on the fixed blade to be discharged in a radial direction thereof, In a reinforcing bar cutting space, a first extruding device that pushes a reinforcing bar to the reinforcing bar discharge port on the upper side in the longitudinal direction of the reinforcing bar with respect to a virtual shear plane between the fixed blade and the movable blade, and the reinforcing bar cutting space A second extrusion device for extruding a reinforcing bar to the reinforcing bar discharge port on the lower side in the longitudinal direction of the reinforcing bar with respect to the virtual shear plane; and a location corresponding to the first extrusion device at the reinforcing bar discharge port A first guard plate that can be closed, a second guard plate that can close a portion corresponding to the second extrusion device at the reinforcing bar discharge port, and an extrusion operation of the first guard plate by the first extrusion device Based on the closed state from the closed state A first driving device for switching operation, there the second guard plate where further a second drive device for switching operation to the open state from the closed state based on the extrusion operation of the second extrusion apparatus.

　本発明の第６の特徴構成によれば、本発明の第１の特徴構成による上述の作用効果を叶えることができるのに加えて、鉄筋排出口は、鉄筋切断中及び切断後に、第１押出装置及び第２押出装置が作動するまでは、第１ガード板及び第２ガード板によって、閉塞状態にある。そして、第１押出装置又は第２押出装置の作動によって、第１駆動装置又は第２駆動装置によって第１ガード板又は第２ガード板が開放状態に切換え操作され、より安全性を向上させることができるようになった。 According to the sixth characteristic configuration of the present invention, in addition to being able to achieve the above-described operational effect according to the first characteristic configuration of the present invention, the reinforcing bar discharge port is provided with the first extrusion during and after the cutting of the reinforcing bar. Until the device and the second extrusion device are operated, the first guard plate and the second guard plate remain closed. Then, by the operation of the first extrusion device or the second extrusion device, the first guard plate or the second guard plate is switched to the open state by the first drive device or the second drive device, and the safety can be further improved. I can do it now.

　本発明の第７の特徴構成は、鉄筋の搬送方向で請求項１に記載の鉄筋切断機よりも上手側に配置され鉄筋を受け止めて前記鉄筋切断機に送り込み搬送する第１コンベア装置と、前記鉄筋の搬送方向で前記鉄筋切断機よりも下手側に配置され鉄筋を受け止めて取り出し搬送する第２コンベア装置と、前記第１コンベア装置は、前記鉄筋切断機に送り込んだ鉄筋の後端部を前記鉄筋切断機から引き戻し操作可能に構成されてあり、前記引き戻し操作により引き戻した鉄筋を前記第１コンベア装置の横側方に排出する鉄筋残材排出機構を備えるところにある。 The seventh characteristic configuration of the present invention is a first conveyor device that is arranged on the upper side of the reinforcing bar cutting machine according to claim 1 in the conveying direction of the reinforcing bar, receives the reinforcing bar, and feeds and conveys the reinforcing bar to the reinforcing bar cutting machine, A second conveyor device arranged on the lower side of the reinforcing bar cutting machine in the conveying direction of the reinforcing bar to receive and take out the reinforcing bar, and the first conveyor device includes a rear end portion of the reinforcing bar fed to the reinforcing bar cutting machine. The rebar is configured to be able to be pulled back from the rebar cutting machine, and is provided with a rebar residual material discharge mechanism that discharges the rebar pulled back by the pull back operation to the lateral side of the first conveyor device.

　本発明の第７の特徴構成によれば、切断によって残る鉄筋残材の内、その後端側が第１コンベア装置に載るものは、後退操作機構によって鉄筋切断機から鉄筋残材を引き戻し、その引き戻した鉄筋を鉄筋残材排出機構により第１コンベア装置の横側方に排出できる。そのために、オペレータが鉄筋切断機に近づかなくても、鉄筋の切断残材を取り出すことができて、安全性を向上することができる。 According to the seventh characteristic configuration of the present invention, among the remaining steel bars remaining after cutting, those whose rear end side is placed on the first conveyor device are pulled back from the reinforcing bar cutting machine by the reversing operation mechanism and pulled back. The reinforcing bars can be discharged to the lateral side of the first conveyor device by the reinforcing bar residual material discharging mechanism. Therefore, even if the operator does not approach the rebar cutting machine, the rebar cutting remaining material can be taken out, and safety can be improved.

鉄筋切断装置の全体平面図である。It is a whole top view of a reinforcing bar cutting device. 鉄筋切断機の右側からの斜視図で、一部拡大図を示してある。It is a perspective view from the right side of a rebar cutting machine, and a partial enlarged view is shown. 鉄筋切断機の左側からの斜視図で、一部拡大図を示してある。It is a perspective view from the left side of a rebar cutting machine, and a partial enlarged view is shown. 鉄筋切断機の正面図である。It is a front view of a rebar cutting machine. 鉄筋切断作用側面図で、（ａ）は切断前の状態を示し、（ｂ）は切断途中の状態を示し、（ｃ）は切断完了時点を示す。It is a side view of a reinforcing bar cutting action, (a) shows a state before cutting, (b) shows a state in the middle of cutting, and (c) shows a cutting completion time point. 鉄筋切断作用正面図で、（ａ）は切断前の状態を示し、（ｂ）は切断途中を示し、（ｃ）は切断完了時点を示す。It is a front view of a reinforcing bar cutting action, (a) shows the state before cutting, (b) shows the middle of cutting, (c) shows the cutting completion time. 別実施形態の鉄筋切断作用側面図で、（ａ）は切断前の状態を示し、（ｂ）は切断途中の状態を示し、（ｃ）は切断完了時点を示し、（ｄ）第１押出装置による切断鉄筋の排出途中を示す。It is a rebar cutting action side view of another embodiment, (a) shows the state before cutting, (b) shows the state in the middle of cutting, (c) shows the time of cutting completion, (d) 1st extrusion device Shown during the discharge of the cut reinforcing bars. 別実施形態の第１押出装置による切断鉄筋の排出途中を示す要部の作用側面図である。It is an effect | action side view of the principal part which shows the middle of discharge | emission of the cut reinforcement by the 1st extrusion apparatus of another embodiment. 鉄筋切断機と第１コンベア装置及び第２コンベア装置の最接近状態の位置関係を示す説明図である。It is explanatory drawing which shows the positional relationship of the closest approach of a reinforcing bar cutting machine, a 1st conveyor apparatus, and a 2nd conveyor apparatus. 鉄筋切断機と第１コンベア装置及び第２コンベア装置の相対位置関係を示す説明図で、（ａ）は鉄筋切断機から第２コンベア装置を最も遠ざけた状態を示し、（ｂ）は鉄筋切断機から第２コンベア装置を最も遠ざけた位置から１００ｍｍ近接移動させた状態を示す。It is explanatory drawing which shows the relative positional relationship of a reinforcing bar cutting machine, a 1st conveyor apparatus, and a 2nd conveyor apparatus, (a) shows the state which kept the 2nd conveyor apparatus furthest from the reinforcing bar cutting machine, (b) is a reinforcing bar cutting machine. Shows a state in which the second conveyor device is moved close to 100 mm from the position farthest away from the first conveyor device. 従来技術の鉄筋切断作用正面図を示し、（ａ）は切断前の状態を示し、（ｂ）切断途中の状態を示し、（ｃ）切断直後の状態を示す。The reinforcing bar cutting action front view of a prior art is shown, (a) shows the state before cutting, (b) shows the state in the middle of cutting, and (c) shows the state immediately after cutting.

　以下に本発明の実施の形態を図面に基づいて説明する。
　図１～図６に示すように、鉄筋切断装置１００は、固定刃１と、固定刃１に対して近接操作自在な可動刃２とを固定刃１と可動刃２の間に配置する鉄筋２０の長手方向に位置ずれさせて設けてある鉄筋切断機本体３Ａとを備える鉄筋切断機３を有する。また、鉄筋切断装置１００は、鉄筋２０の搬送方向で鉄筋切断機３よりも上手側に配置され鉄筋２０を受け止めて鉄筋切断機３に送り込み搬送する第１コンベア装置４と、鉄筋２０の搬送方向で鉄筋切断機３よりも下手側に配置され鉄筋２０を受け止めて取り出し搬送する第２コンベア装置５とを有する。鉄筋切断機本体３Ａは、平面視で鉄筋切断機３の正面側に固定刃１に載置する鉄筋２０に対してその径方向に排出自在にする鉄筋排出口６を有する。さらに、鉄筋切断機３は、鉄筋切断機３の鉄筋切断空間Ｓ内において、固定刃１とその固定刃１に近接作動する可動刃２との間の仮想剪断面１８に対して、鉄筋長手方向の上手側で、鉄筋２０を鉄筋排出口６に押し出す第１押出装置７と、鉄筋切断空間Ｓ内において、仮想剪断面１８に対して、鉄筋長手方向の下手側で、鉄筋２０を鉄筋排出口６に押し出す第２押出装置８とを備える。
　尚、第１押出装置７は、鉄筋を押し出して鉄筋切断機３の鉄筋切断空間Ｓから外方に排出するために、伸縮操作自在な第１シリンダ７Ｂとその第１シリンダ７Ｂのピストンロッド先端に取り付けた第１鉄筋排出板７Ａとから構成してある。同様に、第２押出装置８は、鉄筋を押し出して鉄筋切断機３の切断空間から外方に排出するために、伸縮操作自在な第２シリンダ８Ｂとその第２シリンダ８Ｂのピストンロッド先端に取り付けた第２鉄筋排出板８Ａとから構成してある。 Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIGS. 1 to 6, the reinforcing bar cutting device 100 includes a fixed blade 1 and a movable blade 2 that can be operated close to the fixed blade 1 between the fixed blade 1 and the movable blade 2. The rebar cutting machine 3 is provided with a rebar cutting machine main body 3A that is provided by being displaced in the longitudinal direction. Further, the reinforcing bar cutting device 100 is arranged on the upper side of the reinforcing bar cutting machine 3 in the conveying direction of the reinforcing bar 20, receives the reinforcing bar 20, sends it to the reinforcing bar cutting machine 3, and conveys the reinforcing bar 20. The second conveyor device 5 is disposed on the lower side of the reinforcing bar cutting machine 3 and receives the reinforcing bar 20 to take out and convey it. The reinforcing bar body 3A has a reinforcing bar discharge port 6 that allows the reinforcing bar 20 mounted on the fixed blade 1 to be discharged in the radial direction on the front side of the reinforcing bar cutting machine 3 in plan view. Further, the reinforcing bar cutting machine 3 is in the longitudinal direction of the reinforcing bar with respect to the virtual shear surface 18 between the fixed blade 1 and the movable blade 2 that operates close to the fixed blade 1 in the reinforcing bar cutting space S of the reinforcing bar cutting machine 3. In the rebar discharge space 6, the first extrusion device 7 that pushes the rebar 20 to the rebar discharge port 6, and in the rebar cutting space S, the rebar 20 is inserted into the rebar discharge port on the lower side of the rebar longitudinal direction with respect to the virtual shear plane 18. And a second extrusion device 8 for extruding to 6.
In addition, in order to extrude a reinforcing bar and discharge it outward from the reinforcing bar cutting space S of the reinforcing bar cutting machine 3, the first extrusion device 7 is provided at the first cylinder 7B that can be extended and contracted and the piston rod tip of the first cylinder 7B. The first reinforcing bar discharge plate 7A is attached. Similarly, the second extrusion device 8 is attached to the end of the piston rod of the second cylinder 8B and the second cylinder 8B that can be extended and contracted in order to extrude the reinforcing bar and discharge it outward from the cutting space of the reinforcing bar cutting machine 3. And a second reinforcing bar discharge plate 8A.

　鉄筋排出口６において、図４に示すように、第１押出装置７に対応する箇所には、当該箇所を閉塞可能な第１ガード板９が閉塞状態と開放状態とに切換え操作自在に設けられている。また、第２押出装置８に対応する箇所には、当該箇所を閉塞可能な第２ガード板１０が閉塞状態と開放状態とに切換え操作自在に設けられている。そして、鉄筋切断機３には、第１ガード板９を第１押出装置７の押出作動に基づいて閉塞状態から開放状態に切換え操作する第１駆動装置１１と、第２ガード板１０を第２押出装置８の押出作動に基づいて閉塞状態から開放状態に切換え操作する第２駆動装置１２とが設けられてある。
　尚、第１ガード板９と第２ガード板１０とは、夫々鉄筋排出口６の前側に上下搖動自在に垂下させて鉄筋切断機本体３Ａに取り付けてある。前述のように第１ガード板９が第１駆動装置１１により上下搖動操作され、第２ガード板１０が第２駆動装置１２により上下搖動操作される。　 In the reinforcing bar discharge port 6, as shown in FIG. 4, a first guard plate 9 capable of closing the part is provided at a part corresponding to the first extrusion device 7 so as to be switched between a closed state and an open state. ing. Moreover, the 2nd guard board 10 which can block | close the said location is provided in the location corresponding to the 2nd extrusion apparatus 8 so that switching operation is possible between a closed state and an open state. The rebar cutting machine 3 includes a first drive device 11 that switches the first guard plate 9 from the closed state to the open state based on the push-out operation of the first push-out device 7, and the second guard plate 10 as the second guard plate 10. A second drive device 12 is provided for switching from the closed state to the open state based on the extrusion operation of the extrusion device 8.
The first guard plate 9 and the second guard plate 10 are attached to the rebar cutting machine main body 3 </ b> A so as to be vertically slidable on the front side of the rebar discharge port 6. As described above, the first guard plate 9 is moved up and down by the first driving device 11, and the second guard plate 10 is moved up and down by the second driving device 12.

　つまり、鉄筋排出口６は、鉄筋切断中及び切断後に、第１押出装置及び第２押出装置が作動するまでは、第１ガード板９及び第２ガード板１０によって、閉塞状態にある（図５（ａ）～（ｃ））。その後、第１押出装置７又は第２押出装置８の押出作動によって、第１駆動装置１１又は第２駆動装置１２によって第１ガード板９又は第２ガード板１０が鉄筋排出口６の開放状態に切換え操作され（図５（ｄ））、より安全性を向上させることができるように構成してある。　 That is, the reinforcing bar discharge port 6 is in a closed state by the first guard plate 9 and the second guard plate 10 during and after the cutting of the reinforcing bar until the first extrusion device and the second extrusion device are operated (FIG. 5). (A) to (c)). After that, the first guard plate 9 or the second guard plate 10 is brought into the open state of the reinforcing bar discharge port 6 by the first driving device 11 or the second driving device 12 by the pushing operation of the first pushing device 7 or the second pushing device 8. The switching operation is performed (FIG. 5D), and the safety can be further improved. *

　第１コンベア装置４は、鉄筋切断機３に送り込んだ鉄筋２０の後端部を鉄筋切断機３から引き戻し操作可能に構成されている。また、鉄筋切断装置１００には、引き戻し操作により引き戻した鉄筋２０を第１コンベア装置４の横側方に排出する鉄筋残材排出機構１５を設けてある。 The first conveyor device 4 is configured such that the rear end portion of the reinforcing bar 20 fed into the reinforcing bar cutting machine 3 can be pulled back from the reinforcing bar cutting machine 3. Further, the reinforcing bar cutting device 100 is provided with a remaining reinforcing bar discharging mechanism 15 that discharges the reinforcing bar 20 pulled back by the pulling operation to the lateral side of the first conveyor device 4.

　つまり、第１コンベア装置４には、図１に示すように、上手側の送り込み後コンベア４Ａと下手側の送り込み前コンベア４Ｂとで構成してある。送り込み前コンベア４Ｂが正逆駆動回転可能に構成してあって、鉄筋２０を前進させて鉄筋切断機３に供給する前進操作と、鉄筋切断機３に送り込んだ鉄筋２０の後端部を鉄筋切断機３から引き戻し操作する後退操作とが可能である。
　そして、送り込み前コンベア４Ｂには、上下搖動自在なアーム１３と、そのアーム１３を上下搖動駆動するシリンダ１４とで構成される鉄筋残材排出機構１５が設けられている。この鉄筋残材排出機構１５により、鉄筋切断機３から引き戻した後端側の鉄筋残材は、残材ストッカ１６に排出可能となる。
　尚、図２及び図４中の３０は、ピンチローラである。このピンチローラ３０は、鉄筋切断機３に上下動自在に取り付けてあり、送り込み前コンベア４Ｂの先端側（下手側）に設けた正逆駆動回転する受けローラ３１との協働で、その受けローラ３１の上に載った鉄筋２０をピンチローラ３０と共に挟み込んで鉄筋切断機３に供給したり引き戻したりできるように構成してある。 In other words, as shown in FIG. 1, the first conveyor device 4 is composed of an upper post-feed conveyor 4A and a lower pre-feed conveyor 4B. The conveyor 4B before feeding is configured so as to be able to rotate forward and backward, and the reinforcing bar 20 is advanced and fed to the reinforcing bar cutting machine 3, and the rear end portion of the reinforcing bar 20 fed to the reinforcing bar cutting machine 3 is cut. It is possible to perform a reverse operation to perform a pull back operation from the machine 3.
The pre-infeed conveyor 4B is provided with a reinforcing bar residual material discharging mechanism 15 including an arm 13 that can swing up and down and a cylinder 14 that drives the arm 13 to swing up and down. By this rebar remaining material discharging mechanism 15, the rebar remaining material on the rear end side pulled back from the rebar cutting machine 3 can be discharged to the remaining material stocker 16.
2 and 4 denotes a pinch roller. This pinch roller 30 is attached to the rebar cutting machine 3 so as to be movable up and down, and in cooperation with a receiving roller 31 that rotates forward and reversely provided on the front end side (lower side) of the pre-feed conveyor 4B. The rebar 20 placed on 31 is sandwiched with the pinch roller 30 so that it can be supplied to the rebar cutting machine 3 or pulled back.

　第２コンベア装置５には、図１、図９、図１０に示すように、その長手方向において所定間隔置きに上下出退操作自在なストッパ１７が設けられると共に、鉄筋切断機３に対して設定距離内において遠近移動操作可能に構成してある。その第２コンベア装置５の遠近移動操作によって、鉄筋切断機３の可動刃２と固定刃１とによって形成される仮想剪断面１８から、複数のストッパ１７の中から選択されたストッパ１７までの距離を調整して鉄筋２０の切断寸法を設定可能に構成してある。
　つまり、複数のストッパ１７間の離間距離は決まっており、仮想剪断面１８から各ストッパ１７までの長さの寸法以外の長さの鉄筋２０を切断したい場合、第２コンベア装置５を移動操作して、所定の寸法の鉄筋２０を切断できるように構成してある。 As shown in FIGS. 1, 9, and 10, the second conveyor device 5 is provided with a stopper 17 that can be moved up and down at predetermined intervals in the longitudinal direction, and is set for the rebar cutting machine 3. It is configured so that it can be moved within a distance. The distance from the virtual shearing surface 18 formed by the movable blade 2 and the fixed blade 1 of the rebar cutting machine 3 to the stopper 17 selected from among the plurality of stoppers 17 by the distance movement operation of the second conveyor device 5 Is adjusted so that the cutting dimension of the reinforcing bar 20 can be set.
That is, the separation distance between the plurality of stoppers 17 is determined, and when it is desired to cut the reinforcing bar 20 having a length other than the length from the virtual shearing surface 18 to each stopper 17, the second conveyor device 5 is moved and operated. Thus, the reinforcing bar 20 having a predetermined size can be cut.

　図５、図６に示すように、固定刃１はその刃先が水平面又は略水平面に沿った状態に取り付けてある。可動刃２は、その刃先を鉄筋排出口６に近づく側ほど低くなる傾斜面に形成してある。この傾斜面（刃先）は、複数本の鉄筋２０を固定に載置して切断する際に、鉄筋排出口６側に近いものから順に切断して、可動刃２に一度に大きな負荷がかかるのを防止して、複数本の鉄筋２０夫々の切断面が変形するのを抑制する。
　尚、鉄筋切断空間Ｓ内には、固定刃１に載っている鉄筋２０を固定刃１と共に近傍で受け止める受止め板１９が設けられてある。 As shown in FIGS. 5 and 6, the fixed blade 1 is attached in a state where the blade edge is along a horizontal plane or a substantially horizontal plane. The movable blade 2 is formed on an inclined surface whose blade edge becomes lower as it approaches the reinforcing bar discharge port 6. This inclined surface (cutting edge) is cut in order from the one closer to the reinforcing bar discharge port 6 side when a plurality of reinforcing bars 20 are fixedly placed and cut, and a large load is applied to the movable blade 2 at a time. This prevents the cut surfaces of each of the plurality of reinforcing bars 20 from being deformed.
In the reinforcing bar cutting space S, a receiving plate 19 for receiving the reinforcing bar 20 mounted on the fixed blade 1 together with the fixed blade 1 is provided.

　鉄筋切断機３には、固定刃１に対して近接操作自在な可動刃２を、両刃１，２間に配置した鉄筋の長手方向に位置ずれさせて設けてある。可動刃２の下側で切断前の鉄筋２０を固定刃１と共に受け止めるステージ２４は、固定刃１と可動刃２とによる鉄筋切断空間Ｓ内で、可動刃２の下降に伴って被切断鉄筋と共に下降するのを許容するように、ステージ移動装置２５に上下移動自在に設けられる。このステージ移動装置２５は、鉄筋切断機本体３Ａに取り付けてある。また、ステージ移動装置２５には、ステージ２４を上方に付勢する付勢手段２１を設けてある。
　付勢手段２１は、空気圧シリンダにより構成してある。空気圧シリンダ内の空気量又は圧力の調整機構によって、可動刃２による剪断加圧力に対する反力の調整や、ステージ移動装置２５のステージ２４の下降下限値や、図２、図４、図６に示すように、第１押出装置７による切断鉄筋の排出時の上下位置の設定を可能にしてある。 The rebar cutting machine 3 is provided with a movable blade 2 that can be operated close to the fixed blade 1 while being displaced in the longitudinal direction of the rebar disposed between the two

blades

1 and 2. The stage 24 that receives the rebar 20 before cutting together with the fixed blade 1 below the movable blade 2 in the rebar cutting space S between the fixed blade 1 and the movable blade 2 together with the rebar to be cut as the movable blade 2 descends. The stage moving device 25 is provided so as to be movable up and down so as to allow it to descend. The stage moving device 25 is attached to the reinforcing bar body 3A. The stage moving device 25 is provided with a biasing means 21 that biases the stage 24 upward.
The biasing means 21 is constituted by a pneumatic cylinder. Adjustment of the reaction force against the shearing force applied by the movable blade 2 by the adjustment mechanism of the air amount or pressure in the pneumatic cylinder, the lowering lower limit value of the stage 24 of the stage moving device 25, and FIG. 2, FIG. 4, and FIG. Thus, the setting of the up-and-down position at the time of discharge | emission of the cutting rebar by the 1st extrusion apparatus 7 is enabled.

　ステージ移動装置２５は、図５～図６に示すように、順に作動するように構成してある。
　１.　固定刃１に載置してある複数本の鉄筋２０に対して、刃先を傾斜面に形成してある可動刃２が下降する。
　２.　可動刃２の下降に伴って、鉄筋排出口６に近い鉄筋から奥の鉄筋にかけて順次切断されると共に、ステージ移動装置２５も鉄筋排出口６に近い部分から奥にかけて順次下降する。つまり、ステージ２４を下から上向きに付勢するように支持する複数のエアーシリンダの各別な収縮作用によって、ステージ２４が傾きながら下降する（図５（ａ）→図５（ｃ）、図６（ａ）→図６（ｂ））。
　３.　全ての鉄筋２０が切断されたら、可動刃２は上昇して元の切断作動前の位置に戻る。
　４.　ステージ移動装置２５のステージ２４は、固定刃１の上面位置より下側の排出用設定位置で水平又は略水平姿勢になるまで上昇付勢されて停止する（図６（ｃ））。
　５.　排出用設定位置にステージ２４が維持された状態で、第１押出装置７における第１シリンダ７Ｂの伸長作動により、切断された鉄筋が、第１鉄筋排出板７Ａによって鉄筋排出口から鉄筋切断空間の外方に排出される（図２、図５（ｄ）、図６（ｃ））。
　６.　切断鉄筋の排出の終了後は、第１押出装置７の第１鉄筋排出板Ａは、第１シリンダ７Ｂの収縮によって元の位置に引退し、ステージ移動装置２５のステージ２４は、固定刃１の上面位置と同高さに復帰上昇する。 The stage moving device 25 is configured to operate in order as shown in FIGS.
1. The movable blade 2 whose blade edge is formed on an inclined surface is lowered with respect to the plurality of reinforcing bars 20 placed on the fixed blade 1.
2. As the movable blade 2 descends, cutting is sequentially performed from the reinforcing bar close to the reinforcing bar discharge port 6 to the reinforcing bar in the back, and the stage moving device 25 is also sequentially lowered from the portion close to the reinforcing bar discharge port 6 to the back. In other words, the stage 24 descends while being tilted by the contraction action of each of the plurality of air cylinders that support the stage 24 so as to urge the stage 24 upward from below (FIG. 5A → FIG. 5C, FIG. 6). (A) → FIG. 6 (b)).
3. When all the reinforcing bars 20 have been cut, the movable blade 2 rises and returns to the position before the original cutting operation.
4. The stage 24 of the stage moving device 25 is lifted and stopped until it reaches a horizontal or substantially horizontal posture at the discharge setting position below the upper surface position of the fixed blade 1 (FIG. 6C).
5. With the stage 24 maintained at the discharge setting position, the rebar cut by the extension operation of the first cylinder 7B in the first extrusion device 7 is cut from the rebar discharge port by the first rebar discharge plate 7A. It is discharged out of the space (FIGS. 2, 5 (d) and 6 (c)).
6. After the discharge of the cut reinforcing bar, the first reinforcing bar discharge plate A of the first extrusion device 7 is retracted to the original position by the contraction of the first cylinder 7B, and the stage 24 of the stage moving device 25 has a fixed blade. 1 is raised back to the same height as the upper surface position.

　[鉄筋切断操作方法]
　図９～図１０に示すように、第２コンベア装置５を鉄筋切断機３に最も接近させた状態で（図９）、最も上手側の第１ストッパ１７Ａ（１７）と仮想剪断面１８との距離を５００ｍｍとし、各ストッパ１７間の離間距離を５００ｍｍに設定し、第２コンベア装置５の鉄筋切断機３に対する遠近移動距離を５００ｍｍに設定してある場合、第２コンベア装置５が移動不能であれば、通常は５００ｍｍの複数倍の長さの鉄筋２０しか切断できない。これに対し、例えば、１００ｍｍ長さの鉄筋２０を切断するには、以下の手順を実行すればよい。
１、　第２コンベア装置５を鉄筋切断機３から５００ｍｍ遠ざけ、鉄筋２０の先端部を複数のストッパ１７の内の一つのストッパ１７Ｂ（１７）（例えば、仮想剪断面１８から２５００ｍｍの箇所のストッパ）に突き当てて位置決めする。そして、鉄筋２０の残材が最小寸法に成るように、又は、次の目的寸法の鉄筋２０が切断可能な長さを残した後、可動刃２を下降させて鉄筋２０を切断する（図１０（ａ））。
２、　上手側の鉄筋残材は、鉄筋排出機構により第１コンベア装置４の横外側の残材ストッカ１６に排出する（図１）。
３、　第２コンベア装置５を１００ｍｍ鉄筋切断機３に近接させた後、可動刃２を固定刃１に対して下降切断して１００ｍｍの鉄筋２０を切断する。そして、第１ガード板９を閉塞状態から開放状態に切換え操作すると共に、第１押出装置７によって鉄筋排出口６から鉄筋切断機３の外側に切断鉄筋を押し出して排出する（図１０（ｂ）)。
４、　その後、第２コンベア装置５を鉄筋切断機３に１００ｍｍ接近移動させた後、可動刃２の下降操作によって切断する一連の操作（上記３～４の操作）を５回繰り返す。
５、　更に切断本数を増加する場合には、ストッパ１７Ｂ（１７）より５００ｍｍ上手側のストッパ１７に鉄筋先端を突き当てて、上記３～４の操作を繰り返す。
　尚、第２コンベア装置５の各移動距離の設定により、所定の長さの鉄筋２０を切断できるのは、言うまでもない。 [Rebar cutting operation method]
As shown in FIGS. 9 to 10, with the second conveyor device 5 closest to the reinforcing bar cutting machine 3 (FIG. 9), the uppermost first stopper 17A (17) and the virtual shear surface 18 When the distance is set to 500 mm, the distance between the stoppers 17 is set to 500 mm, and the distance of the second conveyor device 5 with respect to the reinforcing bar cutting machine 3 is set to 500 mm, the second conveyor device 5 cannot move. If there is, usually only the reinforcing bars 20 having a length of a multiple of 500 mm can be cut. On the other hand, for example, in order to cut the rebar 20 having a length of 100 mm, the following procedure may be executed.
1. The second conveyor device 5 is moved 500 mm away from the reinforcing bar cutting machine 3, and the tip of the reinforcing bar 20 is one stopper 17 </ b> B (17) of the plurality of stoppers 17 (for example, a stopper at a location 2500 mm from the virtual shear surface 18). Position it against. Then, the remaining material of the reinforcing bar 20 has a minimum dimension, or after leaving a length that can be cut by the reinforcing bar 20 of the next target dimension, the movable blade 2 is lowered to cut the reinforcing bar 20 (FIG. 10). (A)).
2. The rebar remaining material on the upper side is discharged to the remaining material stocker 16 on the lateral outer side of the first conveyor device 4 by the rebar discharging mechanism (FIG. 1).
3. After the second conveyor device 5 is brought close to the 100 mm reinforcing bar cutting machine 3, the movable blade 2 is cut downward with respect to the fixed blade 1 to cut the 100 mm reinforcing bar 20. Then, the first guard plate 9 is switched from the closed state to the opened state, and the cutting bar is pushed out from the reinforcing bar discharge port 6 to the outside of the reinforcing bar cutting machine 3 by the first pusher 7 and discharged (FIG. 10B). ).
4. Thereafter, the second conveyor device 5 is moved 100 mm closer to the reinforcing bar cutting machine 3, and then a series of operations (the above operations 3 to 4) for cutting by moving the movable blade 2 downward are repeated five times.
5. To further increase the number of cuts, the tip of the reinforcing bar is abutted against the stopper 17 500 mm higher than the stopper 17B (17), and the above operations 3 to 4 are repeated.
In addition, it cannot be overemphasized that the reinforcing bar 20 of predetermined length can be cut | disconnected by the setting of each moving distance of the 2nd conveyor apparatus 5. FIG.

　　〔別実施形態〕
　以下に他の実施の形態を説明する。 [Another embodiment]
Other embodiments will be described below.

〈１〉　図７（ａ）～（ｄ）に示すように、ステージ移動装置２５１は、鉄筋切断時にステージ２４１が水平姿勢のまま平行に下降するように形成してあっても良い。
〈２〉　付勢手段２１を、空気圧シリンダに代えて、バネで構成してあってもよい。
〈３〉　図８に示すように、ステージ２４２に載っている切断鉄筋の排出時には、ステージ２４２が固定刃の上面位置に上昇復帰した状態で、第１押出装置７２により排出するようにしてあっても良い。
〈４〉　図３、図４に示すように、受止め板１９の鉄筋排出口側端部には、下方に鉄筋を摺動放出可能に先端側を下方に傾斜した第１排出ガイド板２２が取り付けてあっても良い。また、図７に示すように、ステージ２４１における鉄筋排出口側端部にも、ステージ２４１の上下移動と共に上下移動する第２排出ガイド板２３１を取り付けてあっても良い。
〈５〉　隣接するストッパ間の距離よりも小さい長さの切断長さを設定するのは、１００ｍｍに限らず無段階に設定しても良い。また、複数のストッパの内の選択されたストッパと仮想剪断面１８との間の距離に、隣接するストッパ間の距離よりも小さい長さを加算した長さを切断する場合も、上記操作方法と同様に第２コンベア装置を移動させればよい。
〈６〉　第１押出装置と第２押出装置とは、一体成型品であっても良い。
〈７〉　第１ガード板と第２ガード板とは、一体成型品であっても良い。 <1> As shown in FIGS. 7A to 7D, the stage moving device 251 may be formed so that the stage 241 descends in a horizontal position while cutting the reinforcing bar.
<2> The biasing means 21 may be constituted by a spring instead of the pneumatic cylinder.
<3> As shown in FIG. 8, when the cut reinforcing bar mounted on the stage 242 is discharged, the first extrusion device 72 discharges the stage 242 in a state where the stage 242 is raised and returned to the upper surface position of the fixed blade. Also good.
<4> As shown in FIGS. 3 and 4, a first discharge guide plate 22 having a tip end inclined downward so that the rebar can be slid downward is provided at the end of the receiving plate 19 on the rebar outlet side. It may be attached. In addition, as shown in FIG. 7, a second discharge guide plate 231 that moves up and down with the vertical movement of the stage 241 may be attached to the end of the reinforcing bar discharge port side of the stage 241.
<5> Setting the cutting length smaller than the distance between adjacent stoppers is not limited to 100 mm, and may be set in a stepless manner. Also, when cutting a length obtained by adding a length smaller than the distance between adjacent stoppers to the distance between the selected stopper of the plurality of stoppers and the virtual shearing surface 18, the above operation method and Similarly, the second conveyor device may be moved.
<6> The first extrusion device and the second extrusion device may be integrally molded products.
<7> The first guard plate and the second guard plate may be integrally molded products.

　尚、上述のように、図面との対照を便利にするために符号を記したが、該記入により本発明は添付図面の構成に限定されるものではない。また、本発明の要旨を逸脱しない範囲において、種々なる態様で実施し得ることは勿論である。 As described above, the reference numerals are used for convenience of comparison with the drawings. However, the present invention is not limited to the configurations of the attached drawings. In addition, it goes without saying that the present invention can be carried out in various modes without departing from the gist of the present invention.

　本発明の実施形態は上述の如く構成されるが、さらに包括的には次に列挙するような構成を備えてもよい。
　本発明の鉄筋切断装置は、固定刃と、前記固定刃に対して近接操作自在な可動刃と、前記固定刃と前記可動刃をこれらの刃の間に配置される鉄筋の長手方向に位置ずれさせて設けてある鉄筋切断機と、鉄筋の搬送方向で前記鉄筋切断機よりも上手側に配置され鉄筋を受け止めて前記鉄筋切断機に送り込み搬送する第１コンベア装置と、前記鉄筋の搬送方向で前記鉄筋切断機よりも下手側に配置され鉄筋を受け止めて取り出し搬送する第２コンベア装置とを設けてある鉄筋切断装置であって、平面視で前記鉄筋切断機本体の正面側に設けられ、前記固定刃に載置する鉄筋に対してその径方向に排出自在にする鉄筋排出口と、前記鉄筋切断機の鉄筋切断空間内において、前記固定刃とその固定刃に近接作動する前記可動刃との間の仮想剪断面に対して、鉄筋長手方向の上手側で、鉄筋を前記鉄筋排出口に押し出す第１押出装置と、前記鉄筋切断空間内において、前記仮想剪断面に対して、鉄筋長手方向の下手側で、鉄筋を前記鉄筋排出口に押し出す第２押出装置とを有する。 The embodiment of the present invention is configured as described above, but may be more comprehensively configured as follows.
The rebar cutting device of the present invention includes a fixed blade, a movable blade that can be operated in proximity to the fixed blade, and a positional deviation in the longitudinal direction of the rebar disposed between the fixed blade and the movable blade. A rebar cutting machine that is provided, a first conveyor device that is disposed on the upper side of the rebar cutting machine in the conveying direction of the rebar, receives the rebar, sends it to the rebar cutting machine and conveys it, and in the conveying direction of the rebar Reinforcing bar cutting device arranged on the lower side than the reinforcing bar cutting machine and provided with a second conveyor device that receives and takes out the reinforcing bar, and is provided on the front side of the reinforcing bar cutting machine main body in plan view, A reinforcing bar discharge port that allows the reinforcing bar placed on the fixed blade to be discharged in the radial direction, and the movable blade that operates close to the fixed blade in the reinforcing bar cutting space of the reinforcing bar cutting machine. Pair with virtual shear plane between A first extrusion device for extruding the reinforcing bar to the reinforcing bar discharge port on the upper side of the reinforcing bar in the longitudinal direction of the reinforcing bar, and the reinforcing bar on the lower side of the longitudinal direction of the reinforcing bar in the reinforcing bar cutting space. A second extrusion device for extruding to the reinforcing bar discharge port.

　上記記載の鉄筋切断装置は、前記鉄筋排出口において、第１押出装置に対応する箇所を閉塞可能とする第１ガード板と、第２押出装置に対応する箇所を閉塞可能な第２ガード板と、前記第１ガード板を前記第１押出装置の押出作動に基づいて閉塞状態から開放状態に切換え操作する第１駆動装置と、前記第２ガード板を前記第２押出装置の押出作動に基づいて閉塞状態から開放状態に切換え操作する第２駆動装置とをさらに有する。 The rebar cutting device described above includes a first guard plate capable of closing a portion corresponding to the first extrusion device and a second guard plate capable of closing a portion corresponding to the second extrusion device at the reinforcing bar discharge port. A first drive device for switching the first guard plate from a closed state to an open state based on an extrusion operation of the first extrusion device, and a second guard plate based on the extrusion operation of the second extrusion device. And a second drive device that performs switching operation from the closed state to the open state.

　また、本発明の他の鉄筋切断装置は、固定刃と、前記固定刃に対して近接操作自在な可動刃と、前記固定刃と前記可動刃をこれらの刃の間に配置される鉄筋の長手方向に位置ずれさせて設けてある鉄筋切断機と、前記鉄筋の搬送方向で前記鉄筋切断機よりも上手側に配置され鉄筋を受け止めて前記鉄筋切断機に送り込み搬送する第１コンベア装置と、鉄筋の搬送方向で前記鉄筋切断機よりも下手側に配置され鉄筋を受け止めて取り出し搬送する第２コンベア装置とを有する鉄筋切断装置であって、前記第１コンベア装置に設けられ前記鉄筋切断機に送り込んだ鉄筋の後端部を前記鉄筋切断機から引き戻し操作する後退操作機構と、前記後退操作機構により引き戻した鉄筋を前記第１コンベア装置の横側方に排出する鉄筋残材排出機構とを備える。 Further, another rebar cutting device of the present invention includes a fixed blade, a movable blade that can be operated in proximity to the fixed blade, and a length of a reinforcing bar in which the fixed blade and the movable blade are disposed between these blades. A rebar cutting machine provided in a position shifted in a direction, a first conveyor device arranged on the upper side of the rebar cutting machine in the conveying direction of the rebar, receiving a rebar and feeding it to the rebar cutting machine, and a rebar A rebar cutting device having a second conveyor device that is disposed on the lower side of the rebar cutting machine in the conveying direction and receives and removably conveys the rebar, and is fed to the rebar cutting machine provided in the first conveyor device A retraction operation mechanism for pulling back the rear end of the reinforcing bar from the rebar cutting machine, and a rebar residual material discharging mechanism for discharging the rebar pulled back by the retraction operation mechanism to the lateral side of the first conveyor device. That.

１：固定刃、２：可動刃、３：鉄筋切断機、３Ａ：鉄筋切断機本体、４：第１コンベア装置、５：第２コンベア装置、６：鉄筋排出口、７：第１押出装置、８：第２押出装置、９：第１ガード板、１０：第２ガード板、１１：第１駆動装置、１２：第２駆動装置、１５：鉄筋残材排出機構、１８：仮想剪断面、２０：鉄筋、２１：付勢手段、２４：ステージ、２５：ステージ移動装置、Ｓ：鉄筋切断空間 1: fixed blade, 2: movable blade, 3: rebar cutting machine, 3A: rebar cutting machine main body, 4: first conveyor device, 5: second conveyor device, 6: rebar outlet, 7: first extrusion device, 8: 2nd extrusion device, 9: 1st guard plate, 10: 2nd guard plate, 11: 1st drive device, 12: 2nd drive device, 15: Rebar residual material discharge mechanism, 18: Virtual shear surface, 20 : Rebar, 21: Energizing means, 24: Stage, 25: Stage moving device, S: Rebar cutting space

Claims

　固定刃と、前記固定刃に対して近接操作自在な可動刃と、前記固定刃と前記可動刃をこれらの刃の間に配置される鉄筋の長手方向に位置ずれさせて設けてある鉄筋切断機本体とを備える鉄筋切断機であって、
前記固定刃と前記可動刃とが配置された鉄筋切断空間と、
前記可動刃の下側で切断前の鉄筋を前記固定刃と共に受け止めるステージと、
前記鉄筋切断機本体に取り付けられ、前記ステージを前記鉄筋切断空間内で上下移動させるステージ移動装置とを有し、
前記ステージ移動装置は、前記ステージを上方に付勢する付勢手段を有し、
前記ステージを前記可動刃の下降に伴って被切断鉄筋と共に下降するのを許容する鉄筋切断機。 A fixed blade, a movable blade that can be operated in proximity to the fixed blade, and a rebar cutting machine in which the fixed blade and the movable blade are displaced in the longitudinal direction of the reinforcing bars disposed between these blades. A rebar cutting machine comprising a main body,
Reinforcing bar cutting space in which the fixed blade and the movable blade are disposed;
A stage for receiving the rebar before cutting together with the fixed blade below the movable blade;
A stage moving device attached to the rebar cutting machine main body and moving the stage up and down in the rebar cutting space;
The stage moving device has biasing means for biasing the stage upward,
A rebar cutting machine that allows the stage to descend together with the rebar to be cut as the movable blade descends.
　前記付勢手段は、バネ及び空気圧シリンダの少なくともいずれかにより構成してある請求項１に記載の鉄筋切断機。 The reinforcing bar cutting machine according to claim 1, wherein the urging means comprises at least one of a spring and a pneumatic cylinder.
　前記鉄筋切断機本体は、平面視でその正面側に前記固定刃に載置する鉄筋に対してその径方向に排出自在にする鉄筋排出口を有し、
前記可動刃の刃先は、前記固定刃に載置する複数本の鉄筋に対して一端側の鉄筋に近い側ほど低くなる傾斜面に形成されてあり、
前記ステージは、前記一端側の鉄筋に近い側から順次下降可能に構成されてある請求項１に記載の鉄筋切断機。 The rebar cutting machine main body has a rebar discharge port that allows discharge in the radial direction with respect to the rebar placed on the fixed blade on the front side in plan view,
The cutting edge of the movable blade is formed on an inclined surface that becomes lower toward the side closer to the reinforcing bar on one end side with respect to the plurality of reinforcing bars placed on the fixed blade,
The rebar cutting machine according to claim 1, wherein the stage is configured to be able to descend sequentially from a side close to the rebar on the one end side.
　前記鉄筋切断機本体は、平面視でその正面側に前記固定刃に載置する鉄筋に対してその径方向に排出自在にする鉄筋排出口を有し、
前記可動刃の刃先は、前記固定刃に載置する複数本の鉄筋に対して前記鉄筋排出口に近い側ほど低くなる傾斜面に形成されてあり、
前記ステージは、前記鉄筋排出口に近い側から奥にかけて順次下降可能に構成されてある請求項１に記載の鉄筋切断機。 The rebar cutting machine main body has a rebar discharge port that allows discharge in the radial direction with respect to the rebar placed on the fixed blade on the front side in plan view,
The cutting edge of the movable blade is formed on an inclined surface that becomes lower toward a side closer to the reinforcing bar discharge port with respect to a plurality of reinforcing bars placed on the fixed blade,
The rebar cutting machine according to claim 1, wherein the stage is configured to be capable of descending sequentially from a side close to the rebar discharge port to the back.
　平面視で前記鉄筋切断機本体の正面側に設けられ、前記固定刃に載置する鉄筋に対してその径方向に排出自在にする鉄筋排出口と、
前記鉄筋切断空間内において、前記固定刃と前記可動刃との間の仮想剪断面に対して、鉄筋長手方向の上手側で、鉄筋を前記鉄筋排出口に押し出す第１押出装置と、
前記鉄筋切断空間内において、前記仮想剪断面に対して、前記鉄筋長手方向の下手側で、鉄筋を前記鉄筋排出口に押し出す第２押出装置とをさらに有する請求項１に記載の鉄筋切断機。 A rebar outlet that is provided on the front side of the rebar cutting machine main body in plan view, and that allows the rebar placed on the fixed blade to be discharged in the radial direction;
A first extrusion device that pushes the reinforcing bar to the reinforcing bar discharge port on the upper side in the longitudinal direction of the reinforcing bar with respect to the virtual shear plane between the fixed blade and the movable blade in the reinforcing bar cutting space;
The rebar cutting machine according to claim 1, further comprising: a second extrusion device that pushes the reinforcing bar to the reinforcing bar discharge port on the lower side in the longitudinal direction of the reinforcing bar with respect to the virtual shear plane in the reinforcing bar cutting space.
　平面視で前記鉄筋切断機本体の正面側に設けられ、前記固定刃に載置する鉄筋に対してその径方向に排出自在にする鉄筋排出口と、
前記鉄筋切断空間内において、前記固定刃と前記可動刃との間の仮想剪断面に対して、鉄筋の長手方向の上手側で、鉄筋を前記鉄筋排出口に押し出す第１押出装置と、
前記鉄筋切断空間内において、前記仮想剪断面に対して、鉄筋の長手方向の下手側で、鉄筋を前記鉄筋排出口に押し出す第２押出装置と、
前記鉄筋排出口において、前記第１押出装置に対応する箇所を閉塞可能とする第１ガード板と、
前記鉄筋排出口において、前記第２押出装置に対応する箇所を閉塞可能とする第２ガード板と、
前記第１ガード板を前記第１押出装置の押出作動に基づいて閉塞状態から開放状態に切換え操作する第１駆動装置と、
前記第２ガード板を前記第２押出装置の押出作動に基づいて閉塞状態から開放状態に切換え操作する第２駆動装置とをさらに有する請求項１に記載の鉄筋切断機。 A rebar outlet that is provided on the front side of the rebar cutting machine main body in plan view, and that allows the rebar placed on the fixed blade to be discharged in the radial direction;
A first extrusion device that pushes the reinforcing bar to the reinforcing bar discharge port on the upper side in the longitudinal direction of the reinforcing bar with respect to the virtual shear plane between the fixed blade and the movable blade in the reinforcing bar cutting space;
A second extrusion device that pushes the reinforcing bar to the reinforcing bar discharge port on the lower side in the longitudinal direction of the reinforcing bar with respect to the virtual shear plane in the reinforcing bar cutting space;
In the reinforcing bar discharge port, a first guard plate capable of closing a portion corresponding to the first extrusion device;
In the reinforcing bar discharge port, a second guard plate capable of closing a portion corresponding to the second extrusion device;
A first drive device for switching the first guard plate from a closed state to an open state based on an extrusion operation of the first extrusion device;
The reinforcing bar cutting machine according to claim 1, further comprising: a second drive device that switches the second guard plate from a closed state to an open state based on an extrusion operation of the second extrusion device.
　鉄筋の搬送方向で請求項１に記載の鉄筋切断機よりも上手側に配置され鉄筋を受け止めて前記鉄筋切断機に送り込み搬送する第１コンベア装置と、
前記鉄筋の搬送方向で前記鉄筋切断機よりも下手側に配置され鉄筋を受け止めて取り出し搬送する第２コンベア装置とを有し、
前記第１コンベア装置は、前記鉄筋切断機に送り込んだ鉄筋の後端部を前記鉄筋切断機から引き戻し操作可能に構成されてあり、
前記引き戻し操作により引き戻した鉄筋を前記第１コンベア装置の横側方に排出する鉄筋残材排出機構をさらに備える鉄筋切断装置。 A first conveyor device disposed on the upper side of the reinforcing bar cutting machine according to claim 1 in the conveying direction of the reinforcing bar to receive the reinforcing bar and send it to the reinforcing bar cutting machine;
A second conveyor device that is disposed on the lower side of the reinforcing bar cutting machine in the conveying direction of the reinforcing bar and receives and extracts and conveys the reinforcing bar;
The first conveyor device is configured such that a rear end portion of a reinforcing bar fed into the reinforcing bar cutting machine can be pulled back from the reinforcing bar cutting machine.
The reinforcing bar cutting device further comprising a reinforcing bar residual material discharging mechanism for discharging the reinforcing bar pulled back by the pulling operation to the lateral side of the first conveyor device.