WO2008013142A1 - Procédé de prévention de la torsion de fil dans une lieuse de barre de renforcement - Google Patents

Procédé de prévention de la torsion de fil dans une lieuse de barre de renforcement Download PDF

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Publication number
WO2008013142A1
WO2008013142A1 PCT/JP2007/064437 JP2007064437W WO2008013142A1 WO 2008013142 A1 WO2008013142 A1 WO 2008013142A1 JP 2007064437 W JP2007064437 W JP 2007064437W WO 2008013142 A1 WO2008013142 A1 WO 2008013142A1
Authority
WO
WIPO (PCT)
Prior art keywords
change
rate
torque
wire
motor
Prior art date
Application number
PCT/JP2007/064437
Other languages
English (en)
Japanese (ja)
Inventor
Ichiro Kusakari
Osamu Itagaki
Takahiro Nagaoka
Original Assignee
Max Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Max Co., Ltd. filed Critical Max Co., Ltd.
Publication of WO2008013142A1 publication Critical patent/WO2008013142A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B13/00—Bundling articles
    • B65B13/02—Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes
    • B65B13/025—Hand-held tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B13/00—Bundling articles
    • B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
    • B65B13/185—Details of tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B13/00—Bundling articles
    • B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
    • B65B13/24—Securing ends of binding material
    • B65B13/28—Securing ends of binding material by twisting
    • B65B13/285—Hand tools
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/12—Mounting of reinforcing inserts; Prestressing
    • E04G21/122—Machines for joining reinforcing bars
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/12—Mounting of reinforcing inserts; Prestressing
    • E04G21/122—Machines for joining reinforcing bars
    • E04G21/123—Wire twisting tools

Definitions

  • the present invention relates to a wire thread breakage prevention method in a reinforcing bar binding machine.
  • Patent Document 1 Japanese Patent No. 3227693
  • One or more embodiments of the present invention monitor the twisting state of a wire and automatically terminate the twisting before the wire breakage occurs, causing the wire to break.
  • a method for preventing wire breakage in a reinforcing bar binding machine that can reliably perform binding without any problems is provided.
  • the wire thread breakage prevention method in the reinforcing bar binding machine includes the following steps.
  • (II) Monitor the rate of change of the drive torque by measuring either one or both of the force that starts after a predetermined time has elapsed from the start of torsion, and the drive torque that starts when the drive torque exceeds a predetermined value.
  • the drive torque of the motor is measured every unit time, and based on the torque measured every unit time and the torque measured a predetermined number of times before!
  • the change rate of the drive torque may be monitored, and the tightening by the torsion device may be terminated when the monitored change rate becomes smaller than a predetermined change rate.
  • the drive torque of the motor is measured every unit time, and the torque measured every unit time and the torque measured before the first predetermined number of times
  • the first change rate of the driving torque is monitored based on the second torque
  • the second change rate of the driving torque is monitored based on the torque measured before the second predetermined number of times less than the first predetermined number of times.
  • the time interval for calculating the rate of change in the driving torque of the motor is calculated while being shifted by a time shorter than this time interval, and therefore changes at regular time intervals. Compared with the case of calculating the rate, the rate of change of torque can be closely monitored, and the binding can be surely performed without causing the thread to break.
  • the first change rate of the torque is calculated at a relatively long first time interval, and the short second time set at the end of the first time interval is calculated. Since the second rate of change in torque is calculated at intervals, the binding status is monitored based on the first rate of change and the second rate of change, and the binding is terminated when the binding is sufficient. Therefore, it is possible to realize a method for preventing wire thread breakage in a reinforcing bar binding machine that makes binding stronger and does not cause wire thread breakage.
  • FIG. 1 is a side view of a reinforcing bar binding machine to which a wire thread breakage preventing method according to an exemplary embodiment of the present invention is applied.
  • FIG. 2 Block diagram for explaining the electrical configuration of the reinforcing bar binding machine
  • FIG. 4 is a flowchart for explaining a method for preventing a wire from being broken.
  • FIG. 5 is a flowchart for explaining another example of a wire thread breakage prevention method.
  • FIG. 6A Time chart illustrating the case where the rate of change of torque is simply measured for each elapsed time
  • FIG. 6B is a time chart for explaining the relationship between unit time and elapsed time in the wire thread breakage prevention method according to the flowchart of FIG.
  • FIG. 6C is a time chart illustrating the relationship between unit time and elapsed time in the wire thread breakage prevention method according to the flowchart of FIG.
  • FIG. 1 shows a main part of a reinforcing bar binding machine according to an exemplary embodiment of the present invention.
  • This rebar binding machine consists of a wire feeder 2 that feeds the wire 1 wound around the spool 7 forward, a guide arm 3 that winds the fed wire 1 in a loop, and a part of the wound wire 1 A torsion device 4 for gripping and tightening, and a cutting device 5 for separating the wire loop from the original wire 1 and Is provided.
  • the wire feeding device 2, the twisting device 4 and the cutting device 5 are provided in the binding machine body and are operated by the motor 6.
  • the main switch 14 is inserted, the trigger lever 8 is pulled and the trigger switch 12 is turned on, so that the wire feeder 2 feeds the wire 1 from the spool 7, and the guide
  • the twisting device 4 is actuated, and a part of the wire loop la is gripped by the hook 9 and twisted and rotated to bind the reinforcing bar a, and the cutting device 5 Cut the wire loop la from the original wire 1 and divide it.
  • the measuring means 10 for measuring the torque of the motor 6 of the torsion device 4 and the timing of the end of binding are determined from the torque measured by the measuring means, and the motor 6 is stopped for binding. Control means 11 for ending is provided!
  • Fig. 2 shows a block diagram of a reinforcing bar binding machine.
  • Reference numeral 10 is a measurement means
  • 11 is a control means
  • 12 is a trigger switch
  • 13 is a battery pack
  • 14 is a main switch
  • 15 is a voltage supplied from the battery pack. Shows a DC-DC converter that converts the voltage into a voltage for operating the control means.
  • the measurement means 10 is connected in series to the motor 6 and measures the drive current of the motor 6. Therefore, the change in torque of the motor 6 can be monitored by measuring the drive current.
  • This measuring means 10 is composed of a resistance element, and the driving current flowing through the circuit is obtained from the terminal voltage of this resistance element.
  • the measuring means 10 may use a Hall element type current sensor or the like that obtains a driving current by measuring a magnetic flux generated by a current flowing through the circuit.
  • the measurement result d measured by the measuring means 10 is input to the control means 11.
  • the control means 11 is composed of a microprocessor, and monitors changes in the torque of the motor 6 and controls the voltage applied to the stator coil of the motor based on a control program residing in the built-in memory!
  • the switching elements (for example, power transistors) 16a to 16d are controlled so as to control the drive signals e1 to e4 to control the rotational speed, operation and stop of the motor 6.
  • the control means 11 determines the change in the current flowing through the motor 6 and the past (unit) measured drive time value every time the unit time T1 elapses.
  • the torque change rate is monitored from the drive current value measured back to several times (time T1).
  • This control means 11 monitors that the torque of the motor 6 for twisting the wire increases as the torsional tightening of the reinforcing bar by the wire becomes harder.
  • the drive current value is measured every unit time T1
  • the change rate of the torque (drive current value) is monitored from the previously measured drive current value, and this change rate is the predetermined change rate. When it becomes smaller, it is determined that the reinforcing bars are sufficiently bound, and the motor 6 is stopped by switching the drive signals el to e4 of the motor 6.
  • the criterion for judging that the binding is sufficient is that the characteristic curve becomes gentle when the wire begins to twist, and the motor 6 If you continue to twist the wire by rotating the wire, the wire will eventually be twisted, and if the wire is twisted, the load on the motor 6 will disappear and the drive current will decrease rapidly, so the rate of change in the drive current will increase. What is necessary is just to set the rate of change just before becoming zero as a predetermined rate of change.
  • this monitoring start time is the time T when it is determined that the torsion has progressed and the change rate of the torque has increased, and / or the torque Ma. The monitoring is started from the time when the condition is cleared.
  • step ST1 By pulling the trigger button to rotate the motor, the torque is measured every unit time, and the elapsed time from the start of rotation is monitored (step ST1). It is determined whether the torque exceeds a predetermined value Ma or a predetermined time has passed (step ST2). If the set threshold value is exceeded, the process proceeds to step ST3 and monitoring of the torque change rate is started.
  • the torque is measured every unit time T1 (for example, 10 ms), and the measured current torque M (n) and the torque M (n—X before x) (for example, 5 times the elapsed time T2 is 50 ms). ) To calculate the torque change rate Ad (step ST4). In step ST5, the rate of change Ad is determined. If the rate of change Ad is smaller than the predetermined rate of change Ae, it is determined that the twisting is sufficient, and the motor is stopped to stop the twisting (step ST7).
  • step ST6 If the calculated rate of change Ad is greater than the set rate of change Ae, it is determined that the torsion is insufficient, and in step ST6, the counter is incremented, and the flow returns to step ST3 to return to the next unit time T1. Measure the torque M (n) after elapse of time, calculate the torque change rate Ad again in step ST4, and step ST3 until the torque change rate Ad becomes the same force as the predetermined change rate Ae. Repeat ⁇ ST6.
  • the above-described thread breakage prevention method shifts the time for measuring torque by unit time T1 (for example, 10ms) sequentially, and measures the torque measured every unit time T1 and X unit times T1 (for example, For example, the change rate of the torque is calculated by referring to the torque of five pieces before the elapsed time T2 is 50 ms).
  • the elapsed time T2 is shifted to the elapsed time T2 while shifting the elapsed time T2 by unit time T1 (for example, 10 ms).
  • the rate of change in torque is calculated.
  • Fig. 6A if the rate of change of torque is simply measured every elapsed time T2 (50ms), the wire may be broken before the next measurement.
  • Fig. 6B by monitoring the rate of change while shifting the elapsed time T2 little by little (by unit time T1), the predetermined rate of change can be recognized before the wire breakage occurs. Can do.
  • the unit time T1 described above is not limited to 10 ms, but can be set arbitrarily, such as 2 ms or 3 ms.
  • the elapsed time T2 can also be set to any value that is not limited to five times the unit time T1. Good.
  • the rate of change in torque during the elapsed time is calculated while shifting by unit time, but the rate of change for each elapsed time and the rate of change within a short time within the elapsed time.
  • a method for monitoring the two change rates and preventing twisting will be described based on the flowchart of FIG. 5 and the time chart of FIG. 6C.
  • the trigger button is pulled to rotate the motor, and the torque is measured every unit time, and the elapsed time from the start of rotation is monitored (step ST11). It is determined whether a force for which the torque threshold exceeds a predetermined value Ma and a predetermined time have elapsed (step ST12). If the threshold and the predetermined time have elapsed, monitoring of the torque change rate is started (step ST13).
  • the torque is measured every unit time T1 (for example, 10 ms), and the measured torque M (n) and the torque M (n—x) before the unit time force (for example, 5 units and the elapsed time is 50 ms).
  • step ST17 If the calculated first change rate Adl is greater than the set change rate Ae or the second change rate Ad2 is not negative, it is determined that the torsion is still incomplete, and the counter is turned on in step ST17. Return to step ST13, measure the torque M (n) after the next unit time T1, and calculate the torque change rate again in steps ST14 and 15, so that the torque change rate is Repeat steps ST13 to ST17 until the rate of change is reached.
  • the rate of change in torque is greater than the first rate of change Adl at the first elapsed time T2 and the first elapsed time T2 set at the end of the first elapsed time.
  • the second change rate in the short second elapsed time T3 is determined based on the two change rates with Ad2, and when the first change rate Adl becomes smaller than the predetermined change rate Ae, or When the second rate of change Ad2 becomes negative, the motor is stopped and the torsion is stopped.
  • the present invention is applicable to a reinforcing bar binding machine.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Basic Packing Technique (AREA)

Abstract

Dans une lieuse de barre de renforcement pour lier des barres (a) de renforcement par un fil (1), un procédé de prévention de torsion du fil comprend les étapes suivantes:(I) Mesure, en utilisant un courant d'entraînement du moteur (6), du couple d'entraînement d'un moteur (6) d'entraînement d'un crochet (9) qui maintient le fil (1) pour lier les barres (a) de renforcement, et lorsque le taux (Ad) de variation du couple d'entraînement mesuré est inférieur à un taux (Ae) de variation prédéterminé, arrêt du moteur (6) pour arrêter la torsion et la fixation du fil réalisée par un dispositif de torsion (4). (II) Réalisation de la mesure en commençant l'observation du taux (Ad) de variation du couple d'entraînement à l'instant où une période de temps (T) prédéterminée s'est écoulée après le début de torsion ou à l'instant où le couple d'entraînement est plus grand ou égal à une valeur (Ma) prédéterminée ou les deux.
PCT/JP2007/064437 2006-07-24 2007-07-23 Procédé de prévention de la torsion de fil dans une lieuse de barre de renforcement WO2008013142A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006-200396 2006-07-24
JP2006200396A JP4978088B2 (ja) 2006-07-24 2006-07-24 鉄筋結束機におけるワイヤのねじ切れ防止方法

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WO2008013142A1 true WO2008013142A1 (fr) 2008-01-31

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PCT/JP2007/064437 WO2008013142A1 (fr) 2006-07-24 2007-07-23 Procédé de prévention de la torsion de fil dans une lieuse de barre de renforcement

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TW (1) TW200825258A (fr)
WO (1) WO2008013142A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010006543A1 (fr) * 2008-07-17 2010-01-21 Yi Xiaojie Ligatureuse électrique se tenant à la main
CN102390606A (zh) * 2011-07-22 2012-03-28 孙激扬 钢筋捆扎机械手及其专用扣件
WO2018028897A1 (fr) * 2016-08-09 2018-02-15 Robert Bosch Gmbh Procédé permettant d'étalonner et/ou de faire fonctionner une machine-outil portative et machine-outil portative
CN109229478A (zh) * 2018-08-28 2019-01-18 戴嘉诚 一种钢丝扎绑机
CN109415129A (zh) * 2016-04-18 2019-03-01 赫勒曼泰顿株式会社 手动捆绑工具
CN109476388A (zh) * 2016-04-18 2019-03-15 赫勒曼泰顿株式会社 手动捆扎工具
WO2019227304A1 (fr) * 2018-05-29 2019-12-05 广东顺德华焱电子科技有限公司 Mécanisme de liaison pour machine d'attache de barre d'armature et machine d'attache de barre d'armature

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JP5310525B2 (ja) 2009-12-17 2013-10-09 マックス株式会社 鉄筋結束機におけるイニシャライズ方法
JP6985928B2 (ja) * 2017-12-27 2021-12-22 株式会社マキタ 結束機
CN108343250B (zh) * 2018-05-03 2019-06-18 广东顺德华焱电子科技有限公司 一种钢筋捆扎机及其可更换式枪头和工作方法
CN112942841B (zh) * 2021-01-28 2023-01-31 中铁第一勘察设计院集团有限公司 踩踏式钢筋绑扎装置
CN115783366A (zh) * 2022-12-16 2023-03-14 台州市新大陆电子科技有限公司 一种捆扎机的打结控制方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09156608A (ja) * 1995-12-06 1997-06-17 Bentatsuku:Kk 結束機の制御方法及び装置
JPH1045105A (ja) * 1996-08-02 1998-02-17 Max Co Ltd 鉄筋結束機におけるワイヤ絡み防止方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2790111B2 (ja) * 1996-03-11 1998-08-27 株式会社日立製作所 プラズマ処理方法
JP2001327094A (ja) * 2000-05-11 2001-11-22 Japan Storage Battery Co Ltd アルカリ二次電池用充電器および充電方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09156608A (ja) * 1995-12-06 1997-06-17 Bentatsuku:Kk 結束機の制御方法及び装置
JPH1045105A (ja) * 1996-08-02 1998-02-17 Max Co Ltd 鉄筋結束機におけるワイヤ絡み防止方法

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010006543A1 (fr) * 2008-07-17 2010-01-21 Yi Xiaojie Ligatureuse électrique se tenant à la main
US8567310B2 (en) 2008-07-17 2013-10-29 Xiaojie Yi Electric hand-held binding apparatus
CN102390606A (zh) * 2011-07-22 2012-03-28 孙激扬 钢筋捆扎机械手及其专用扣件
CN109415129A (zh) * 2016-04-18 2019-03-01 赫勒曼泰顿株式会社 手动捆绑工具
CN109476388A (zh) * 2016-04-18 2019-03-15 赫勒曼泰顿株式会社 手动捆扎工具
CN109476388B (zh) * 2016-04-18 2021-07-30 海尔曼太通株式会社 手动捆扎工具
WO2018028897A1 (fr) * 2016-08-09 2018-02-15 Robert Bosch Gmbh Procédé permettant d'étalonner et/ou de faire fonctionner une machine-outil portative et machine-outil portative
WO2019227304A1 (fr) * 2018-05-29 2019-12-05 广东顺德华焱电子科技有限公司 Mécanisme de liaison pour machine d'attache de barre d'armature et machine d'attache de barre d'armature
CN109229478A (zh) * 2018-08-28 2019-01-18 戴嘉诚 一种钢丝扎绑机

Also Published As

Publication number Publication date
JP4978088B2 (ja) 2012-07-18
JP2008025252A (ja) 2008-02-07
TW200825258A (en) 2008-06-16

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