JP5796268B2

JP5796268B2 - Rebar bending equipment

Info

Publication number: JP5796268B2
Application number: JP2011083044A
Authority: JP
Inventors: 昌彦宗和; 繁和鈴木
Original assignee: Toyo Kensetsu Kohki Co Ltd
Current assignee: Toyo Kensetsu Kohki Co Ltd
Priority date: 2011-04-04
Filing date: 2011-04-04
Publication date: 2015-10-21
Anticipated expiration: 2031-04-04
Also published as: JP2012218000A

Description

本発明は、鉄筋をクランプするクランプ部を設けると共に、前記クランプ部でクランプした鉄筋を曲げ加工するための支点部と、その支点部周りに回動して鉄筋を屈曲させる力点部とを設け、前記支点部を異なった径のものと取替え自在に構成し、前記力点部を回動操作するインバータモータを設け、前記力点部の回動操作時の鉄筋曲げ角度を設定する曲げ角度設定手段を設けてある鉄筋曲げ装置に関する。 The present invention provides a clamp part for clamping a reinforcing bar, a fulcrum part for bending the reinforcing bar clamped by the clamp part, and a force point part that turns around the fulcrum part to bend the reinforcing bar, The fulcrum portion is configured to be replaceable with a different diameter, provided with an inverter motor for rotating the power point portion, and provided with a bending angle setting means for setting a rebar bending angle when the power point portion is rotated. The present invention relates to a reinforcing bar bending apparatus.

従来、前記曲げ角度設定手段で鉄筋の曲げ角度を設定すると、その設定角の手前の一定の角度の位置で回動停止指令がインバータモータに出力されるようになっていた（適当な文献が見当たらない）。 Conventionally, when the bending angle of the reinforcing bar is set by the bending angle setting means, a rotation stop command is output to the inverter motor at a certain angle before the set angle (if appropriate literature is found) Absent).

上述した従来の鉄筋曲げ装置では、鉄筋径や材質、支点部の径、同時に曲げ加工する鉄筋の本数などが異なると、力点部を駆動回転するインバータモータに掛かる負荷が異なると共に、鉄筋から受ける反力が異なる。そのために、図４、図５に示すように、インバータモータに回動停止指令が出てから実際に停止するまでの停止時間に差が生じる。例えば、鉄筋１本の場合、回動停止指令が出た時点ＴＳから、停止時点ＴＰ１までの時間ＴＳ１が長く（図４（ａ））、従って、停止までの力点部の回動角Θが大きい(図４（ｂ）)。
これに対し、鉄筋１０本を同時に曲げる場合、回動停止指令が出た時点ＴＳから、停止時点ＴＰ１０までの時間ＴＳ１０が短く（図５（ａ））、従って、停止までの力点部の回動角βが小さい（図５（ｂ））。
一般的には、鉄筋曲げ時のトルクが大きいと、インバータモータに回動停止指令が出てから短い時間で停止する傾向にある。
そこで従来は、加工する鉄筋を、その径、材質、支点部の径、本数に応じて曲げ加工する前に試行錯誤により予備曲げ加工を何度か行って、目標の曲げ角度になるように曲げ角度設定手段に調整した曲げ角度を設定（例えば、鉄筋１０本の場合は、曲げ角度α相当分の時間を加算して、回動停止指令を出す（図５（ａ）、（ｂ）））しなければならず、手間が多くかかり作業効率が悪く、しかも、材料ロスが多かった。 In the above-described conventional reinforcing bar bending apparatus, if the reinforcing bar diameter and material, the diameter of the fulcrum part, the number of reinforcing bars to be bent at the same time, etc. are different, the load applied to the inverter motor that drives and rotates the force point part will be different and the reaction received from the reinforcing bar will be different. The power is different. Therefore, as shown in FIGS. 4 and 5, there is a difference in the stop time from when the rotation stop command is issued to the inverter motor until it is actually stopped. For example, in the case of one reinforcing bar, the time TS1 from the time TS at which the rotation stop command is issued to the stop time TP1 is long (FIG. 4 (a)), and thus the rotation angle Θ of the power point portion until the stop is large. (FIG. 4 (b)).
On the other hand, when bending ten reinforcing bars at the same time, the time TS10 from the time TS at which the rotation stop command is issued to the time TP10 at the stop is short (FIG. 5 (a)). The angle β is small (FIG. 5B).
In general, if the torque during rebar bending is large, the inverter motor tends to stop in a short time after the rotation stop command is issued.
Therefore, in the past, the pre-bending process was repeated several times by trial and error before bending the rebar to be machined according to its diameter, material, fulcrum part diameter, and number, so that the target bending angle was obtained. The adjusted bending angle is set in the angle setting means (for example, in the case of 10 reinforcing bars, a time corresponding to the bending angle α is added and a rotation stop command is issued (FIGS. 5A and 5B)). It has to be labor intensive, inefficient in work, and has a lot of material loss.

従って、本発明の目的は、上記問題点を解消し、効率よく、且つ、精度良く目標の曲げ角度に良く加工でき、しかも、材料ロスの少ない鉄筋曲げ装置を提供するところにある。 Accordingly, an object of the present invention is to provide a reinforcing bar bending apparatus which can solve the above-mentioned problems, can be processed efficiently and accurately at a target bending angle, and has little material loss.

本発明の第１の特徴構成は、鉄筋をクランプするクランプ部を設けると共に、前記クランプ部でクランプした鉄筋を曲げ加工するための支点部と、その支点部周りに回動して鉄筋を屈曲させる力点部とを設け、前記支点部を異なった径のものと取替え自在に構成し、前記力点部を回動操作するインバータモータを設け、前記力点部の回動操作時の鉄筋曲げ角度を設定する曲げ角度設定手段を設けてある鉄筋曲げ装置であって、同時に曲げ加工する鉄筋の本数を入力自在な入力手段を設け、前記入力手段は、鉄筋の本数を自動的に計測する本数自動計測装置を設けてあるものであり、前記曲げ角度設定手段による設定曲げ角度になるように、前記入力手段への入力情報に基づいた前記力点部への回動停止指令位置情報を予め備えたデータベースを設け、前記入力手段への入力信号に基づいて、前記データベースから前記力点部の回動停止指令位置情報を取り出して、同時に曲げ加工する鉄筋の本数が多くなるに従って前記インバータモータに与える回転停止指令を遅く出すように、前記インバータモータに作動指令する制御装置を設けてあるところにある。 A first characteristic configuration of the present invention is provided with a clamp part for clamping a reinforcing bar, a fulcrum part for bending the reinforcing bar clamped by the clamp part, and turning around the fulcrum part to bend the reinforcing bar. Provided with a force point portion, the fulcrum portion can be replaced with one having a different diameter, an inverter motor for rotating the force point portion is provided, and a reinforcing bar bending angle when the force point portion is rotated is set. a reinforcing bar bending apparatus that is a bend angle setting means is provided, a universal input manually stage input a number of reinforcing bars to be bent at the same time provided, the input means, the number automatic measurement which measures the number of reinforcing bars automatically are those is provided with a device, said bend so that the set bending angle by the angle setting means previously provided database the rotation stop command position information to the force point portion, based on input information to the input hand stage Provided, on the basis of the input an input signal to the hand stage, take out the rotation stop command position information of the force point portion from the database, the rotation stop command given to the inverter motor according to the number of bending to reinforcing bars increases simultaneously Is provided with a control device for instructing the inverter motor to operate slowly .

本発明の第１の特徴構成によれば、同時に曲げ加工する鉄筋の本数を入力自在な入力手段への入力情報に基づいた前記力点部への回動停止指令位置情報を予め備えたデータベースを設けて、制御装置によって入力手段への入力信号に基づいて、前記データベースから前記力点部の回動停止指令位置情報を取り出して前記インバータモータに作動指令することにより、従来のように、曲げ加工する前に試行錯誤により予備曲げ加工を何度か行って、目標の曲げ角度になるように曲げ角度設定手段に調整した曲げ角度を設定しなければならないような多くの手間を掛けずとも、単に入力手段に加工対象の鉄筋の情報を入力するだけで、精度良く目標の曲げ角度に鉄筋を曲げ加工できる。
また、本発明の第１の特徴構成によれば、特に多数本の鉄筋を曲げ加工する際には、一定の回動停止指令位置をインバータモータに作動指令しながら、一定の本数ずつ曲げ加工することで、曲げ精度の揃った鉄筋を得ることができるが、最後に一定の本数に満たない本数の鉄筋を曲げ加工する際には、インバータモータにかかる負荷が変わり、力点部の回動停止指令位置を変更する調整が必要になり、調整のための多くの手間と材料のロスも生じるものであるが、この問題を、本数自動計測装置とデータベース及び制御装置を設けることにより、簡単に解消できる。 According to the first characterizing feature of the present invention, with advance rotation stop instruction position information to the force point portion, based on input information to the input freely enter Chikarate stages the number of reinforcing bars to be bent at the same time the provided database, based on the input signal by the control unit to the input Chikarate stage, by operation command to the inverter motor from the database retrieves the rotation stop command position information of the point portion, the conventional As described above, it is necessary to carry out preliminary bending several times by trial and error before bending, and to set a bending angle adjusted to the bending angle setting means so as to achieve the target bending angle. without hanging, simply by inputting the information of the processing object to the input means into a single rebar can bend rebar processing the bending angle accurately target.
Further, according to the first characteristic configuration of the present invention, particularly when bending a large number of rebars, bending is performed by a certain number while a constant rotation stop command position is commanded to the inverter motor. In the end, when bending less than a certain number of reinforcing bars, the load applied to the inverter motor changes, and the force point rotation stop command Adjustment to change the position is necessary, and much labor and material loss for adjustment occur, but this problem can be easily solved by providing an automatic number measuring device, database and control device. .

本発明の第２の特徴構成は、鉄筋をクランプするクランプ部を設けると共に、前記クランプ部でクランプした鉄筋を曲げ加工するための支点部と、その支点部周りに回動して鉄筋を屈曲させる力点部とを設け、前記支点部を異なった径のものと取替え自在に構成し、前記力点部を回動操作するインバータモータを設け、前記力点部の回動操作時の鉄筋曲げ角度を設定する曲げ角度設定手段を設けてある鉄筋曲げ装置であって、鉄筋径を入力自在な第１入力手段と、鉄筋の材質を入力自在な第２入力手段と、前記支点部の径を入力自在な第３入力手段と、同時に曲げ加工する鉄筋の本数を入力自在な第４入力手段を設け、前記曲げ角度設定手段による設定曲げ角度になるように、前記第１入力手段と第２入力手段と第３入力手段と第４入力手段の入力情報に基づいた前記力点部への回動停止指令位置情報を予め備えたデータベースを設け、前記第１入力手段、第２入力手段、第３入力手段、第４入力手段の入力信号に基づいて、前記データベースから前記力点部の回動停止指令位置情報を取り出して前記インバータモータに作動指令する制御装置を設けてあるところにある。 According to a second characteristic configuration of the present invention, a clamp part for clamping a reinforcing bar is provided, a fulcrum part for bending the reinforcing bar clamped by the clamp part, and a revolving part around the fulcrum part to bend the reinforcing bar. Provided with a force point portion, the fulcrum portion can be replaced with one having a different diameter, an inverter motor for rotating the force point portion is provided, and a reinforcing bar bending angle when the force point portion is rotated is set. A rebar bending apparatus provided with a bending angle setting means, wherein a first input means capable of inputting a rebar diameter, a second input means capable of inputting a material of a rebar, and a first input means capable of inputting a diameter of the fulcrum portion. 3 input means and 4th input means which can freely input the number of reinforcing bars to be bent at the same time are provided, and the first input means, the second input means and the third input means so as to be set to the bending angle set by the bending angle setting means. Input means and fourth input means A database provided in advance with rotation stop command position information to the force point portion based on input information is provided, and based on input signals of the first input means, second input means, third input means, and fourth input means And a control device for taking out the rotation stop command position information of the power point from the database and commanding the inverter motor to operate.

本発明の第２の特徴構成によれば、第１入力手段から第４入力手段まで全てを設け、それらの全ての入力手段の入力情報に基づいた力点部への回動停止指令位置情報をデータベースに予め備えさせてあることで、鉄筋径、鉄筋の材質、支点部の径、同時曲げ加工する鉄筋の本数のいずれが変更になっても精度の良い鉄筋曲げ加工品が得られる。 According to the second characteristic configuration of the present invention, all of the first input means to the fourth input means are provided, and the rotation stop command position information to the force point portion based on the input information of all the input means is stored in the database. In this way, a rebar bending product with high accuracy can be obtained regardless of any change in the diameter of the reinforcing bar, the material of the reinforcing bar, the diameter of the fulcrum, and the number of reinforcing bars to be simultaneously bent.

本発明の第３の特徴構成は、前記第４入力手段は、鉄筋の本数を自動的に計測する本数自動計測装置を設けてあるところにある。 According to a third characteristic configuration of the present invention, the fourth input means is provided with an automatic number measuring device for automatically measuring the number of reinforcing bars.

本発明の第３の特徴構成によれば、特に多数本の鉄筋を曲げ加工する際には、一定の回動停止指令位置をインバータモータに作動指令しながら、一定の本数ずつ曲げ加工することで、曲げ精度の揃った鉄筋を得ることができるが、最後に一定の本数に満たない本数の鉄筋を曲げ加工する際には、インバータモータにかかる負荷が変わり、力点部の回動停止指令位置を変更する調整が必要になり、調整のための多くの手間と材料のロスも生じるものであるが、この問題を、本数自動計測装置とデータベース及び制御装置を設けることにより、簡単に解消できる。 According to the third characteristic configuration of the present invention, in particular, when bending a large number of reinforcing bars, by bending the fixed number of rotations while commanding the inverter motor to actuate a fixed rotation stop command position. However, when bending less than a certain number of rebars at the end, the load applied to the inverter motor changes and the rotation stop command position of the force point is changed. Adjustments to be changed are required, and a lot of labor and materials are lost for adjustment. However, this problem can be easily solved by providing an automatic number measuring device, a database, and a control device.

第１実施形態の（ａ）鉄筋曲げ機の移動時の全体正面図、（ｂ）鉄筋曲げ機の曲げ加工時の全体正面図である。It is the (a) whole front view at the time of movement of a rebar bending machine of a 1st embodiment, and (b) the whole front view at the time of bending of a rebar bending machine. 鉄筋曲げ機の正面図である。It is a front view of a reinforcing bar bending machine. 鉄筋曲げ機の曲げ加工時の正面図である。It is a front view at the time of the bending process of a reinforcing bar bending machine. （ａ）は鉄筋が１本の時の力点部の移動速度と時間との関係を表すグラフ、（ｂ）は鉄筋１本分の力点部の回動停止指令位置と停止位置との関係を表す状態図である。(A) is a graph showing the relationship between the moving speed of the power point portion and time when there is one reinforcing bar, and (b) shows the relationship between the rotation stop command position and the stop position of the force point portion for one reinforcing bar. It is a state diagram. （ａ）は鉄筋が１０本の時の力点部の移動速度と時間との関係を表すグラフ、（ｂ）は鉄筋１０本分の力点部の回動停止指令位置と停止位置との関係を表す状態図である。(A) is a graph showing the relationship between the moving speed of the power point when the number of reinforcing bars is 10 and time, and (b) shows the relationship between the rotation stop command position and the stop position of the force point for 10 reinforcing bars. It is a state diagram. 本数自動計測装置のシステム図である。It is a system diagram of a number automatic measuring device. 曲げ機における制御装置の動作を表すフローである。It is a flow showing operation | movement of the control apparatus in a bending machine. 第２実施形態の鉄筋曲げ装置の正面図である。It is a front view of the reinforcing bar bending apparatus of the second embodiment. 第２実施形態の鉄筋曲げ機で、(ａ)は正面図、(ｂ)は側面図である。It is a reinforcing bar bending machine of 2nd Embodiment, (a) is a front view, (b) is a side view.

以下に本発明の実施の形態を図面に基づいて説明する。
〔第１実施形態〕
本発明の鉄筋曲げ装置は、鉄筋コンクリート用異径棒鋼などの鉄筋を所定の形状に曲げ加工するために使用されるものであり、図１に示すように、鉄筋曲げ装置の基台１の下部前面に、基台１の長手方向に沿うレール２が配設されており、そのレール２には、鉄筋Ｓを所定の形状に曲げるための第１鉄筋曲げ機３と第２鉄筋曲げ機４との２台の鉄筋曲げ機３，４が、レール２に沿って互いに近接離間自在に載置され、基台１の長手方向の中央には、両鉄筋曲げ機３，４の間に位置する状態で、鉄筋Ｓをクランプするためのクランプ部を形成するクランプ機５が設けられ、そして、両鉄筋曲げ機３，４の作動状態を制御する制御装置Ｃが設けられている。尚、図外に、鉄筋曲げ機を駆動移動させる移動装置を設けてある。 Embodiments of the present invention will be described below with reference to the drawings.
[First Embodiment]
The reinforcing bar bending apparatus of the present invention is used to bend a reinforcing bar such as a different diameter steel bar for reinforced concrete into a predetermined shape. As shown in FIG. 1, the lower front surface of the base 1 of the reinforcing bar bending apparatus is used. Further, a rail 2 along the longitudinal direction of the base 1 is disposed, and the rail 2 includes a first rebar bending machine 3 and a second rebar bending machine 4 for bending the reinforcing bar S into a predetermined shape. Two rebar bending machines 3 and 4 are placed along the rail 2 so as to be close to and away from each other, and are located between the rebar bending machines 3 and 4 in the longitudinal center of the base 1. A clamping machine 5 for forming a clamping part for clamping the reinforcing bar S is provided, and a control device C for controlling the operating state of both the reinforcing bar bending machines 3 and 4 is provided. In addition, the moving apparatus which drives and moves a reinforcing bar bending machine is provided outside the figure.

図１，２，３に示すように、前記第１鉄筋曲げ機３と第二鉄筋曲げ機４とは、左右勝手違いはあるものの同じ構成であり、レール２に沿って走行自在な走行車輪を備えたフレーム１１の前面のほぼ中央に、上下一対の部材からなる鉄筋を曲げ加工するための支点部１２が、曲げ対象物として供給される鉄筋Ｓを上下両側から挟み込めるように相対向状態に固定されている。また、フレーム１１の内部には、一部が円形に形成されて支点部１２に面する盤状体１５を、一対の支点部１２の対向間中心近傍の軸芯Ｘ周りに回動駆動自在且つ軸芯Ｘに沿って前後に出退駆動自在に設けてある。そして、盤状体１５の先端部には、鉄筋Ｓを屈曲させる力点部としての力点ローラ１６を備えさせてあり、盤状体１５の軸芯Ｘに沿う出退駆動にともなって、力点ローラ１６が、フレーム１１に開設された円弧状の長孔１７を通して外部へ突出引退し、曲げ作用位置と非曲げ作用位置とに位置変更可能となるように構成してある。 As shown in FIGS. 1, 2, and 3, the first rebar bending machine 3 and the second rebar bending machine 4 have the same configuration although there is a difference in right and left, and traveling wheels that can travel along the rail 2 are used. The fulcrum part 12 for bending a reinforcing bar made up of a pair of upper and lower members is in a state of being opposed to each other so that the reinforcing bar S supplied as a bending object can be sandwiched from both the upper and lower sides. It is fixed. In addition, a disk-like body 15 that is partially formed in a circular shape and faces the fulcrum portion 12 is rotatably driven around the axis X near the center between the opposed portions of the pair of fulcrum portions 12. It is provided to be movable back and forth along the axis X. A force point roller 16 as a force point portion for bending the reinforcing bar S is provided at the tip of the plate-like body 15, and the force-point roller 16 is driven along with the retreat drive along the axis X of the plate-like body 15. However, it is configured such that it can be projected and retracted to the outside through an arc-shaped long hole 17 provided in the frame 11 to change the position between a bending action position and a non-bending action position.

つまり、図２，３に示すように、当該実施形態の鉄筋曲げ機３，４では、上下一対の支点部１２にて鉄筋Ｓを挟み込んだ姿勢にて、力点ローラ１６を鉄筋Ｓよりもフレーム１１寄りに引退させた姿勢で盤状体１５を適宜回動駆動及び出退駆動させて、力点ローラ１６が鉄筋Ｓの下方にて突出する上方曲げ姿勢と、力点ローラ１６が鉄筋Ｓの上方にて突出する下方曲げ姿勢とに切替可能であり、鉄筋Ｓを移動させることなく鉄筋Ｓを上や下に自在に曲げ加工することができる。 That is, as shown in FIGS. 2 and 3, in the reinforcing bar bending machines 3 and 4 of the present embodiment, the force roller 16 is placed on the frame 11 rather than the reinforcing bar S in a posture in which the reinforcing bar S is sandwiched between the pair of upper and lower fulcrum portions 12. The disc-like body 15 is appropriately rotated and retracted with the posture retracted toward the side, and an upward bending posture in which the power roller 16 protrudes below the reinforcing bar S, and the power roller 16 is above the reinforcing bar S. Switching to a protruding downward bending posture is possible, and the reinforcing bar S can be freely bent upward or downward without moving the reinforcing bar S.

前記クランプ機５は、図１（ａ），（ｂ）に示すように、相対上下自在な固定挟持部材６と可動挟持部材７とからなり、図外のシリンダーにより可動挟持部材７を挟持固定状態と固定解除状態とに切り替えるように構成されており、鉄筋曲げ機３，４の一対の支点部１２及び固定挟持部材６・可動挟持部材７で、曲げ対象物として供給された鉄筋Ｓを安定に支持することができる。 As shown in FIGS. 1 (a) and 1 (b), the clamping machine 5 includes a fixed clamping member 6 and a movable clamping member 7 that are relatively movable up and down, and the movable clamping member 7 is clamped and fixed by a cylinder (not shown). The rebar S supplied as a bending object is stably formed by the pair of fulcrum portions 12 of the reinforcing bar bending machines 3 and 4 and the fixed clamping member 6 and the movable clamping member 7. Can be supported.

そして、前記制御装置Ｃには、曲げ速度制御部Ｃ１と力点部の回動停止指令位置制御部Ｃ２と移動速度制御部Ｃ３とを備えさせてある。 The control device C includes a bending speed control unit C1, a rotation stop command position control unit C2 of a power point unit, and a moving speed control unit C3.

前記曲げ速度制御部Ｃ１は、曲げ対象物として供給された鉄筋Ｓのうちの、支点部１２と力点ローラ１６による屈曲予定箇所からその力点部の回動にともない屈曲される端部側までの、屈曲予定長さＬの長短に応じて、力点ローラ１６の支点部１２周りの回動速度ωを変更可能であり、屈曲予定長Ｌさが長いほど回動速度ωが遅くなるように構成してある。例えば、盤状体１５を回動駆動するためのインバータモータ（図外）を制御することで、屈曲予定長さＬの長短に応じて、盤状体１５の回動速度が遅くなるように制御すればよい（図１（ｂ））。 The bending speed control unit C1 is a portion of the reinforcing bar S supplied as a bending object, from a planned bending point by the fulcrum part 12 and the power point roller 16 to an end part side that is bent as the power point part rotates. The rotation speed ω around the fulcrum portion 12 of the force roller 16 can be changed according to the length of the planned bending length L. The longer the planned bending length L, the slower the rotation speed ω is. is there. For example, by controlling an inverter motor (not shown) for rotationally driving the disk-shaped body 15, the rotation speed of the disk-shaped body 15 is controlled to be slow according to the length of the planned bending length L. (FIG. 1 (b)).

本実施形態における鉄筋曲げ装置には、力点部の回動操作時の鉄筋曲げ角度を設定する曲げ角度設定手段２０を設け、鉄筋径を入力自在な第１入力手段２１と、鉄筋の材質を入力自在な第２入力手段２２と、支点部の径を入力自在な第３入力手段２３と、同時に曲げ加工する鉄筋の本数を入力自在な第４入力手段２４を設け、曲げ角度設定手段２０による設定曲げ角度になるように、第１入力手段２１と第２入力手段２２と第３入力手段２３と第４入力手段２４の入力情報に基づいた力点部への回動停止指令位置情報を予め備えたデータベース２５を設けてある。
そして、前記回動停止指令位置制御部Ｃ２は、第１入力手段２１、第２入力手段２２、第３入力手段２３、第４入力手段２４の入力信号に基づいて、データベース２５から力点部の回動停止指令位置情報を取り出してインバータモータに作動指令するように構成してある。 The reinforcing bar bending apparatus according to the present embodiment is provided with a bending angle setting means 20 for setting a reinforcing bar bending angle at the time of turning operation of the power point portion, and a first input means 21 capable of inputting a reinforcing bar diameter and a material of the reinforcing bar. The second input means 22 that can be freely input, the third input means 23 that can input the diameter of the fulcrum portion, and the fourth input means 24 that can input the number of reinforcing bars to be bent at the same time are provided. Rotation stop command position information to the force point portion based on the input information of the first input means 21, the second input means 22, the third input means 23, and the fourth input means 24 is prepared in advance so that the bending angle is obtained. A database 25 is provided.
Then, the rotation stop command position control unit C2 performs the rotation of the power point unit from the database 25 based on the input signals of the first input unit 21, the second input unit 22, the third input unit 23, and the fourth input unit 24. The operation stop command position information is taken out and an operation command is given to the inverter motor.

つまり、インバータモータによる力点ローラ１６の駆動回転においては、鉄筋径、鉄筋の材質、支点部の径、同時に曲げ加工する鉄筋の本数によって、力点部を駆動回転するインバータモータに掛かる負荷が異なると共に、鉄筋から受ける反力が異なり、そのために、インバータモータに回動停止指令が出てから実際に停止するまでの停止時間に差が生じる。
例えば、図４，図５に示すように、1本の鉄筋を曲げ加工する場合（図４（ａ）、（ｂ））のインバータモータに回動停止指令を与えた時点（ＴＳ）から実際に力点ローラが停止するまでの時点（ＴＰ１）までの時間（ＴＳ１）と、１０本の鉄筋を曲げ加工する場合（図５（ａ）、（ｂ））のインバータモータに回動停止指令を与えた時点（ＴＳ）から実際に力点ローラが停止するまでの時点（ＴＰ１０）までの時間（ＴＳ１０）が異なる。即ち、同時加工鉄筋の本数が多くなるほど曲げ時のトルクが大きく短い時間で停止し易い。従って、同時曲げ加工本数が多くなるに従って、目的の曲げ角度になるように、インバータモータに与える回動停止指令は、遅く出さなければならない（例えば、鉄筋１０本分の場合、力点部の回動角α相当分の時間を加算して、回動停止指令時点の変更調整を行う（図５（ａ）、図５（ｂ）））。 That is, in the driving rotation of the power point roller 16 by the inverter motor, the load applied to the inverter motor that drives and rotates the power point portion differs depending on the reinforcing bar diameter, the material of the reinforcing bar, the diameter of the fulcrum portion, and the number of reinforcing bars to be bent at the same time. The reaction force received from the reinforcing bar is different, and for this reason, a difference occurs in the stop time from when the rotation stop command is issued to the inverter motor until it is actually stopped.
For example, as shown in FIGS. 4 and 5, when bending a single reinforcing bar (FIGS. 4A and 4B), the inverter motor is actually started from the point (TS) when the rotation stop command is given. Time (TS1) until the time point (TP1) until the power point roller stops and a rotation stop command are given to the inverter motor in the case of bending ten reinforcing bars (FIGS. 5A and 5B) The time (TS10) from the time (TS) to the time (TP10) until the power roller actually stops is different. That is, as the number of simultaneously processed reinforcing bars increases, the torque at the time of bending increases and it is easy to stop in a short time. Therefore, as the number of simultaneous bending increases, the rotation stop command given to the inverter motor must be issued later so that the target bending angle is obtained (for example, in the case of 10 rebars, the rotation of the force point portion). The time corresponding to the angle α is added, and the change adjustment at the rotation stop command time is performed (FIGS. 5A and 5B).

尚、上記現象に基づく制御は、同時曲げ加工の本数のみならず、鉄筋径、鉄筋の材質、支点部の径によっても異なり、夫々の条件に基づいて補正が必要になり、夫々の入力手段の組み合わせ毎に、異なった回動停止指令位置情報をデータベース２５に予め記憶させて準備してある。 The control based on the above phenomenon differs depending not only on the number of simultaneous bending processes but also on the diameter of the reinforcing bar, the material of the reinforcing bar, and the diameter of the fulcrum, and correction is necessary based on the respective conditions. Different rotation stop command position information is stored in advance in the database 25 for each combination.

前記第４入力手段２４は、鉄筋の本数を自動的に計測する本数自動計測装置２６を設けてある。
本数自動計測装置２６の一例としては、鉄筋Ｓを鉄筋曲げ機に受け渡す途中に設け、図６に示すように、幅の略揃った複数本の鉄筋Ｓをその幅方向に並べて静置可能な載置部３２を設け、鉄筋Ｓに向けて光を照射する発光部と、鉄筋Ｓで反射した前記光を受光する受光部とを備える光センサーＺを、近接センサーの一種として設け、光センサーＺを載置部３２上の鉄筋Ｓに対してその併設方向に移動させるセンサー移動装置３３を設け、センサー移動装置３３による光センサーＺの移動中に、受光部で受光している間だけ光センサーＺの移動距離を計測する移動距離計測器３４を設け、鉄筋Ｓの幅を入力自在な入力部３５を設け、移動距離計測器３４からの計測値を入力部３５からの入力値で除し鉄筋Ｓの本数を割り出す演算装置３６を設けてある。 The fourth input means 24 is provided with an automatic number measuring device 26 that automatically measures the number of reinforcing bars.
As an example of the automatic number measuring device 26, the reinforcing bars S are provided in the middle of delivery to the reinforcing bar bending machine, and as shown in FIG. 6, a plurality of reinforcing bars S having substantially the same width can be arranged side by side in the width direction and allowed to stand. An optical sensor Z is provided as a kind of proximity sensor, which is provided with a placement unit 32, and includes a light emitting unit that emits light toward the reinforcing bar S and a light receiving unit that receives the light reflected by the reinforcing bar S. The sensor moving device 33 is provided to move the optical sensor Z in the direction in which the reinforcing bar S on the mounting portion 32 moves. A moving distance measuring device 34 for measuring the moving distance of the reinforcing bar S is provided, and an input unit 35 for freely inputting the width of the reinforcing bar S is provided. Is provided with an arithmetic unit 36 for determining the number of A.

前記鉄筋Ｓは、一般的に段階的に径の異なる複数種のものがあり、その長手方向に所定間隔置きに節部が有る。
その節部は他の箇所よりも大径で、例えば、規格品の鉄筋Ｄ１３の節部外径は、約１３．３ｍｍである。
そして、前記載置部３２に鉄筋を幅方向（つまり径方向）に並べた場合には、隣接する鉄筋Ｓ間には、通常は隙間ができやすいが、たまたま光センサーＺの移動経路に節部が位置した場合には、隣接する鉄筋間に、隙間が形成されない場合も生じる。 The rebar S generally has a plurality of types having different diameters in stages, and there are nodes at predetermined intervals in the longitudinal direction.
The diameter of the node is larger than that of other portions. For example, the outer diameter of the node of the standard reinforcing bar D13 is about 13.3 mm.
When the reinforcing bars are arranged in the width direction (that is, in the radial direction) on the placement portion 32, a gap is usually easily formed between the adjacent reinforcing bars S, but it happens to be a node in the movement path of the optical sensor Z. When is located, a gap may not be formed between adjacent reinforcing bars.

前記センサー移動装置３３を次のように構成してある。
前記載置部３２に並べた鉄筋Ｓの幅方向に沿うように、軸心を向けたスプライン軸３７が、その両端部を軸支持部３８を介して固定する計測器枠体３９を設けてある。
前記スプライン軸３７に外嵌して摺動するボス部４０を一対設け、それら両ボス部４０に亘ってラック４１が一体連結してあり、一方のボス部４０を、下端部に光センサーＺを取り付けた移動フレーム４２の上端部に取り付けることにより、光センサーＺがスプライン軸３７の軸心方向に沿って移動自在に構成してある。
また、前記計測装置支持枠には、複動型のエアーシリンダー４３が取り付けられ、そのエアーシリンダー４３の出退ロッドに、移動フレーム４２を連結することにより、光センサーＺが移動操作されるように構成してある。 The sensor moving device 33 is configured as follows.
A spline shaft 37 with its axial center directed along the width direction of the reinforcing bars S arranged in the mounting portion 32 is provided with a measuring instrument frame 39 that fixes both ends thereof via shaft support portions 38. .
A pair of boss portions 40 that are fitted on and slide on the spline shaft 37 are provided, and a rack 41 is integrally connected across the boss portions 40. One boss portion 40 is connected to the optical sensor Z at the lower end portion. The optical sensor Z is configured to be movable along the axial direction of the spline shaft 37 by being attached to the upper end portion of the attached moving frame 42.
Further, a double-acting air cylinder 43 is attached to the measuring device support frame, and the optical sensor Z is moved and operated by connecting a moving frame 42 to a retracting rod of the air cylinder 43. It is configured.

前記光センサーＺには、発光部と受光部とが同一の箇所に形成され、半導体レーザー発信器４４から発するレーザー光が光ファイバー４５を介して送られて発光部から照射されるように形成してある。また、発光部から照射したレーザー光が鉄筋Ｓから反射して帰ってきた光を、受光部で受けて、光ファイバー４５を介して受光素子部４６に入るようにしてある。 In the optical sensor Z, the light emitting part and the light receiving part are formed in the same place, and the laser light emitted from the semiconductor laser transmitter 44 is sent through the optical fiber 45 and is irradiated from the light emitting part. is there. In addition, the laser beam irradiated from the light emitting unit is reflected by the reinforcing bar S and received by the light receiving unit, and enters the light receiving element unit 46 through the optical fiber 45.

前記移動距離計測器３４は、移動フレーム４２と共にスプライン軸３７の軸心方向と平行に移動するラック４１に対し、噛み合うピニオンギア４７を連結したロータリーエンコーダー４８を、計測器枠体３９に取り付け、そのロータリーエンコーダー４８で検出したピニオンギア４７の回転数と、受光素子部４６からの受光情報を基に、光センサーＺの移動中に、受光部で受光している間だけ光センサーＺの移動距離を計測するように構成してある。 The moving distance measuring device 34 is attached to a measuring device frame 39 with a rotary encoder 48 connected with a pinion gear 47 that meshes with a rack 41 that moves in parallel with the axial direction of the spline shaft 37 together with the moving frame 42. Based on the number of rotations of the pinion gear 47 detected by the rotary encoder 48 and the light reception information from the light receiving element unit 46, the movement distance of the photo sensor Z only during the light reception by the light receiving unit during the movement of the photo sensor Z. It is configured to measure.

前記演算装置３６は、移動距離計測器３４からの積算計測値（＝Ａ＋Ｂ＋Ｃ・・・・）を、入力部３５からの入力値Ｙ（鉄筋の規格径）で除して鉄筋Ｓの総本数（＝（Ａ＋Ｂ＋Ｃ＋・・・）÷Ｙ）を割り出すように構成してある。 The arithmetic unit 36 divides the integrated measurement value (= A + B + C...) From the moving distance measuring instrument 34 by the input value Y (standard diameter of the reinforcing bar) from the input unit 35 to obtain the total number of reinforcing bars S ( = (A + B + C +...) / Y).

図１（ａ）に示すように、前記移動速度制御部Ｃ３は、前記クランプ機５に対して前記鉄筋曲げ機３，４が移動装置（図外）によって近接駆動移動する近接移動速度Ｖを、前記鉄筋曲げ機３，４と前記クランプ機５との離間距離Ｗに応じて変更可能であり、前記離間距離Ｗが長いほど前記近接移動速度Ｖが速くなるように構成してある。例えば、エンコーダ等により前記鉄筋曲げ機３，４の前記クランプ機５に対する離間距離Ｗを検出可能とし、前記離間距離Ｗが長いほど前記クランプ機５に対して近接移動する近接移動速度Ｖが速くなるように、前記鉄筋曲げ機３，４の移動駆動するためのモータの電源の周波数をインバータ制御すればよい。 As shown in FIG. 1 (a), the moving speed control unit C3 sets a proximity moving speed V at which the rebar bending machines 3 and 4 are moved in proximity to the clamping machine 5 by a moving device (not shown). The distance between the reinforcing bar bending machines 3 and 4 and the clamping machine 5 can be changed according to the separation distance W. The longer the separation distance W, the faster the proximity movement speed V is. For example, the separation distance W of the rebar bending machines 3 and 4 with respect to the clamping machine 5 can be detected by an encoder or the like, and the proximity movement speed V that moves closer to the clamping machine 5 increases as the separation distance W increases. As described above, the frequency of the power source of the motor for driving the rebar bending machines 3 and 4 may be inverter-controlled.

尚、特に制御装置における回動停止指令位置制御部Ｃ２の動作は、図７のフローに示すように構成してある。 In particular, the operation of the rotation stop command position control unit C2 in the control device is configured as shown in the flow of FIG.

〔第２実施形態〕
前記鉄筋曲げ装置は、図８、図９に示すように、鉄筋曲げ機を４台設ける装置であっても良い。つまり、鉄筋曲げ装置に、長手方向に沿うレール２が配設されており、そのレール２には、鉄筋Ｓを所定の形状に曲げるための第１鉄筋曲げ機２７と第２鉄筋曲げ機２８と第３鉄筋曲げ機２９と第４鉄筋曲げ機３０の４台の鉄筋曲げ機２７，２８，２９，３０が、レール２に沿って互いに近接離間自在に載置され、基台１の長手方向の中央には、第２鉄筋曲げ機２８と第３鉄筋曲げ機２９との間に位置する状態で、鉄筋Ｓをクランプするためのクランプ部を形成するクランプ機５が設けられ、そして鉄筋曲げ機２７，２８，２９，３０の作動状態を夫々制御する制御装置Ｃが設けられている。尚、図外に、鉄筋曲げ機を駆動移動させる移動装置を設けてある。 [Second Embodiment]
As shown in FIGS. 8 and 9, the reinforcing bar bending apparatus may be an apparatus provided with four reinforcing bar bending machines. That is, the rail 2 along the longitudinal direction is disposed in the reinforcing bar bending apparatus, and the rail 2 includes a first reinforcing bar bending machine 27 and a second reinforcing bar bending machine 28 for bending the reinforcing bar S into a predetermined shape. Four rebar bending machines 27, 28, 29, 30, a third rebar bending machine 29 and a fourth rebar bending machine 30, are placed close to and away from each other along the rail 2. In the center, there is provided a clamp machine 5 that forms a clamp part for clamping the reinforcing bar S in a state of being positioned between the second reinforcing bar bending machine 28 and the third reinforcing bar bending machine 29, and the reinforcing bar bending machine 27. , 28, 29, and 30 are provided with a control device C for controlling the operating states of each. In addition, the moving apparatus which drives and moves a reinforcing bar bending machine is provided outside the figure.

前記鉄筋曲げ機は、夫々レール２に沿って走行自在な走行車輪を備えたフレーム１１の全面の略中央に、鉄筋Ｓを曲げ加工するためのローラからなる支点部１２が、曲げ対象物として供給される鉄筋Ｓの上側に出退駆動自在に配設され、且つ、異なる径のものと選択的に取替え自在に設けている。また、支点部１２の軸心Ｘ周りに回動駆動自在な回動アーム３１を設け、その回動アーム３１の先端部には、鉄筋Ｓを屈曲させる力点部としての力点ローラ１６を、着脱取替え自在に設けてある。 In the reinforcing bar bending machine, a fulcrum portion 12 made of a roller for bending the reinforcing bar S is supplied as an object to be bent at the approximate center of the entire surface of the frame 11 provided with traveling wheels that can run along the rails 2. It is provided on the upper side of the reinforcing bar S so as to be able to drive out and retract, and can be selectively replaced with one having a different diameter. Further, a pivot arm 31 that can be pivotally driven around the axis X of the fulcrum portion 12 is provided, and a power point roller 16 as a force point portion that bends the reinforcing bar S is attached to and detached from the distal end portion of the pivot arm 31. It is provided freely.

つまり、鉄筋Ｓを４箇所曲げ加工する場合、図８に示すように、第１鉄筋曲げ機２７と第４鉄筋曲げ機３０夫々の力点ローラ１６が回動駆動された後は、夫々の支点部１２が引退し、その後、第２鉄筋曲げ機２８と第３鉄筋曲げ機２９夫々の力点ローラ１６が回動駆動して所定形状のフープ筋が成形される。 That is, when the reinforcing bar S is bent at four places, as shown in FIG. 8, after the power roller 16 of each of the first reinforcing bar bending machine 27 and the fourth reinforcing bar bending machine 30 is driven to rotate, the respective fulcrum parts are provided. After that, the power point roller 16 of each of the second rebar bending machine 28 and the third rebar bending machine 29 is rotationally driven to form a hoop bar having a predetermined shape.

尚、前記クランプ機５及び制御装置Ｃについては、前述の構造と同様である。 The clamping machine 5 and the control device C are the same as those described above.

〔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〉前記鉄筋曲げ装置には、鉄筋径を入力自在な第１入力手段２１と、鉄筋の材質を入力自在な第２入力手段２２と、支点部の径を入力自在な第３入力手段２３と、同時に曲げ加工する鉄筋の本数を入力自在な第４入力手段２４との内の少なくとも一つの入力手段を設けてあって、曲げ角度設定手段２０による設定曲げ角度になるように、第１入力手段２１と第２入力手段２２と第３入力手段２３と第４入力手段２４との内の少なくとも一つの入力手段への入力情報に基づいた力点部への回動停止指令位置情報を予め備えたデータベース２５を設け、第１入力手段２１、第２入力手段２２、第３入力手段２３、第４入力手段２４の内の少なくとも一つの入力手段への入力信号に基づいて、データベース２５から力点部の回動停止指令位置情報を取り出してインバータモータに作動指令するように制御装置を構成してあってもよい。つまり、第１入力手段２１〜第４入力手段２４までの全ての入力手段を設けずに、一部の入力手段だけを設けてある場合があっても良い。
〈２〉前記第４入力手段２４は、同時に曲げ加工する鉄筋の本数を、人為的に入力するものであっても良い。 <1> In the reinforcing bar bending apparatus, the first input means 21 that can input the diameter of the reinforcing bar, the second input means 22 that can input the material of the reinforcing bar, and the third input means 23 that can input the diameter of the fulcrum part. And at least one input means of the fourth input means 24 capable of inputting the number of reinforcing bars to be bent at the same time, the first input so that the set bending angle by the bending angle setting means 20 is obtained. Rotation stop command position information to the force point portion based on input information to at least one of the means 21, the second input means 22, the third input means 23, and the fourth input means 24 was previously provided. A database 25 is provided, and based on an input signal to at least one of the first input means 21, the second input means 22, the third input means 23, and the fourth input means 24, the database 25 reads the power point portion. Rotation stop command position information The control device may be configured to take out the information and issue an operation command to the inverter motor. That is, there may be a case where not all the input means from the first input means 21 to the fourth input means 24 are provided, but only some of the input means are provided.
<2> The fourth input means 24 may artificially input the number of reinforcing bars to be bent at the same time.

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。 In addition, as mentioned above, although the code | symbol was written in order to make contrast with drawing convenient, this invention is not limited to the structure of an accompanying drawing by this entry. 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.

1２支点部
１６力点部
２０曲げ角度設定手段
２１第１入力手段
２２第２入力手段
２３第３入力手段
２４第４入力手段
２５データベース
２６本数自動計測装置
Ｃ制御装置 12 fulcrum portion 16 force point portion 20 bending angle setting means 21 first input means 22 second input means 23 third input means 24 fourth input means 25 database 26 number automatic measuring device C control device

Claims

A clamp part for clamping a reinforcing bar is provided, and a fulcrum part for bending the reinforcing bar clamped by the clamp part, and a force point part that rotates around the fulcrum part to bend the reinforcing bar,
The fulcrum part is configured to be freely replaceable with a different diameter,
An inverter motor for rotating the power point portion is provided,
Reinforcing bar bending apparatus provided with a bending angle setting means for setting a reinforcing bar bending angle at the time of turning operation of the power point part ,
A universal input manually stage input provided the number of reinforcing bars to be bent at the same time,
The input means is provided with a number automatic measuring device that automatically measures the number of reinforcing bars,
The bending so as to set the bending angle by the angle setting means is provided in advance with a database the rotation stop command position information to the force point portion, based on input information to the input hand stage,
Based on the input signal to the input hand stage, take out the rotation stop command position information of the force point portion from the database, slowing the rotation stop command to be given to the inverter motor according to the number of reinforcing bars increases to bending at the same time A reinforcing bar bending apparatus provided with a control device that commands the inverter motor to operate.

A clamp part for clamping a reinforcing bar is provided, and a fulcrum part for bending the reinforcing bar clamped by the clamp part, and a force point part that rotates around the fulcrum part to bend the reinforcing bar,
The fulcrum part is configured to be freely replaceable with a different diameter,
An inverter motor for rotating the power point portion is provided,
Reinforcing bar bending apparatus provided with a bending angle setting means for setting a reinforcing bar bending angle at the time of turning operation of the power point part,
The first input means that can input the diameter of the reinforcing bar, the second input means that can input the material of the reinforcing bar, the third input means that can input the diameter of the fulcrum part, and the number of reinforcing bars that can be bent simultaneously. 4th input means,
Rotation stop command position to the force point portion based on the input information of the first input means, the second input means, the third input means, and the fourth input means so that the set bending angle is set by the bending angle setting means. Establishing a database with information in advance,
Based on the input signals of the first input means, the second input means, the third input means, and the fourth input means, the rotation stop command position information of the force point portion is extracted from the database and an operation command is given to the inverter motor. Rebar bending device with a control device.

The reinforcing bar bending apparatus according to claim 2 , wherein the fourth input means is provided with an automatic number measuring device for automatically measuring the number of reinforcing bars.