WO2008128541A1 - Appareil et procédé pour compter et séparer des barres - Google Patents

Appareil et procédé pour compter et séparer des barres Download PDF

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Publication number
WO2008128541A1
WO2008128541A1 PCT/DK2008/000149 DK2008000149W WO2008128541A1 WO 2008128541 A1 WO2008128541 A1 WO 2008128541A1 DK 2008000149 W DK2008000149 W DK 2008000149W WO 2008128541 A1 WO2008128541 A1 WO 2008128541A1
Authority
WO
WIPO (PCT)
Prior art keywords
bars
mandrel
counting
slot
plane
Prior art date
Application number
PCT/DK2008/000149
Other languages
English (en)
Inventor
Hartwig Klosterhalfen
Original Assignee
Stema Engineering A/S
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 Stema Engineering A/S filed Critical Stema Engineering A/S
Publication of WO2008128541A1 publication Critical patent/WO2008128541A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/10—Bending specially adapted to produce specific articles, e.g. leaf springs
    • B21D11/12—Bending specially adapted to produce specific articles, e.g. leaf springs the articles being reinforcements for concrete
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/006—Feeding elongated articles, such as tubes, bars, or profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F23/00—Feeding wire in wire-working machines or apparatus
    • B21F23/005—Feeding discrete lengths of wire or rod
    • B21F23/007—Feeding discrete lengths of wire or rod using pick-up means, e.g. for isolating a predefined number of wires from a bundle

Definitions

  • the present invention concerns an apparatus for separating and counting a number of uniform bars, such as round reinforcement bars, from a bundle with an undetermined number of bars, with a separating unit for taking out a number of bars from the bundle of bars, and a counting unit interacting with the separating unit and providing a counting plane upon which the separated bars are disposed.
  • the present invention furthermore concerns a method for separating and counting a number of uniform bars, such as round reinforcement bars, from a bundle with an undetermined number of bars, with a separating unit for taking out a number of bars and a counting unit interacting with the separating unit and providing a counting plane where the separated bars are disposed.
  • the delivered quantity of iron bars consists of a bundle wherein the bars often lie twisted and with several overlaps, in particular if the bar dimension is small in relation to the length.
  • it has been attempted by various means to get the bars separated and positioned in parallel before counting. It is prior art to separate iron bars by means of a magnet. Then the bars were dropped down on a counting unit where they were conveyed via chain or spiral to an edge where they fell down past a sensor that counted the bars.
  • the counting sensor By this method it has not be possible to safeguard against the counting sensor registering two bars as being one bar if they fell past the sensor at the same instant, e.g. if the two bars have been intertwined.
  • Errors in counting cause errors in the supply of material to e.g. a bending machine with consequent wrong number of pre-bent reinforcement units, giving rise to waste of material and manual handling of the error in order to correct it as well.
  • the purpose of this invention is to indicate an apparatus and a method which can ensure faultless counting of bars so that the above disadvantages are avoided.
  • the separating unit includes a support for the bundle with a free end part of the bars projecting from the support, a displaceable limit stop arranged in continuation of the support and having an limit face for the free end part of the bars, and a separating tool which together with the limit face or by itself provides a slot with two opposing side walls with mutual spacing which is adapted such that the bars only may be inserted side by side in one layer in the slot, and that the counting unit is integrated with the separating tool, as the slot provides the counting plane and serves to retain the bars in one layer during the counting operation.
  • the method according to the invention is peculiar in that the bundle is supported with a free end part of the bars protruding out from the support, that the free end part of the bars are brought to bear against a limit face, that the separated bars are disposed side by side in one layer in a slot with two opposing sidewalls, and that the counting is performed as the bars are retained in one layer in the slot providing the counting plane.
  • the separating unit utilises that the free end part of the bars are brought to bear against a limit face and that the separated bars are disposed side by side in one layer in a slot with two opposing sidewalls, after which the counting is performed as the bars are retained in one layer in the slot providing the counting plane.
  • the counting unit is integrated with the separating tool, as the slot provides the counting plane and serves to retain the bars in one layer during the counting operation.
  • the counting unit includes at least a first mandrel which is displaceable largely perpendicularly to the sidewalls of the slot between an inactive position, where the first mandrel is located outside the slot, and an active position, where the first mandrel is displaced through the layer of bars in the slot, that the first mandrel is disposed at a certain distance from a stop plane which is substantially perpendicular to the sidewalls of the slot, and that the first mandrel is connected to a counting mechanism.
  • the counting is performed in that a first mandrel is disposed at a certain distance from a stop plane which is substantially perpendicular to the sidewalls of the slot, that the first mandrel is displaced largely perpendicularly to the sidewalls of the slot between the inactive position and the active position, where the first mandrel is displaced through the layer of bars in the slot, and the counting is performed as the first mandrel is connected to a counting mechanism.
  • a mechanical dividing of the bars located in the counting plane is achieved, and the use of a stop plane at a certain distance from the mandrel provides a secure mechanical identification of the number of bars between mandrel and stop plane.
  • the distance between mandrel and stop plane may be a multiple of the bar diameter.
  • the number of bars between mandrel and stop plane may be calculated with certainty.
  • the counting unit includes at least a second mandrel, where in the active position, the first mandrel is disposed so that it bears against one side of a given bar, and where in the active position, the second mandrel is disposed at the opposite side of the bar in question, the spacing between the mandrels corresponding to the bar diameter, and that a press unit is arranged largely in parallel with the slot and adapted to exert a pressure on the bars in the slot in direction towards the stop plane, and that the stop plane is constituted by one of the mandrels in active position.
  • the counting is hereby performed with a set including a second mandrel, where the two mandrels are moved in a sequence and where the first mandrel is moved through the counting plane at one side of a given first bar, and where the second mandrel is moved down at the opposite side of the first bar, whereby an interspace is formed between the first bar and an adjacent second bar, that the first bar is moved into the interspace simultaneously with the second mandrel being moved out of the interspace, ending the said sequence, after which a new sequence is initiated, that the sequences are registered by a counting mechanism connected to at least one of the mandrels.
  • a pressure is exerted on the bars in the slot, as a press unit exerts a pressure on the bars in the counting plane in direction against the stop plane, and where the stop plane is constituted by a mandrel in active position.
  • the counting unit will also include one mandrel which is provided with means for moving the mandrel in a direction which is substantially parallel with the slot, that the mandrel is connected with a positioning means having means for determining the distance from the mandrel to the stop plane and means for setting the mandrel at a predetermined distance from the stop plane, and that the distance between the mandrel and the stop plane corresponds to a multiple of the bar diameter.
  • the counting is performed in that a mandrel is disposed at a certain distance from a stop plane which is substantially perpendicular to the sidewalls of the slot, that the mandrel is displaced largely perpendicularly to sidewalls of the slot between an inactive position, where the mandrel is located outside the counting plane, and an active position, where the mandrel is displaced through the layer of bars in the slot, that the mandrel is then moved in a direction which is substantially parallel with the counting plane in direction towards the stop plane, and that the distance from the mandrel to the stop plane is determined subsequently and the number of bars is calculated.
  • the mandrel is displaced to an inactive position and displaced in a direction which is substantially parallel with the counting plane in direction towards the stop plane and displaced to an active position at a predetermined distance from the stop plane, and where the distance between mandrel and stop plane corresponds to a multiple of the bar diameter for the desired number of bars.
  • the mandrel in its active position, will be displaced in a direction which is substantially parallel with the counting plane in direction away from the stop plane, pushing the excess bars back into the bundle of an undetermined number of bars.
  • the number of bars can be calculated as the distance is a multiple of the bar diameter.
  • a certain identification of the number of bars between mandrel and stop plane may be achieved.
  • the mandrel is displaced to the desired distance, which is a multiple of a desired number of bars and the bar diameter + slightly less than a half bar diameter, before the mandrel is displaced to active position again and displaced towards the stop plane for eliminating possible gaps between the bars in the counting plane.
  • the number of bars may be calculated as the distance is a multiple of the bar diameter and it is checked that number corresponds to the desired number of bars.
  • the separating unit includes an arm disposed at a position above the support for the bundle and with an underside forming the limit face and a movable wedge which is connected with a vibrator for vibrating moving in a bundle of the bars, and that the upwards facing side face of the wedge forms a sidewall in the slot, the other sidewall of which being formed by the limit face.
  • the separating tool includes a magnetic unit which is adapted for pulling the bars out of the bundle and into contact with the limit face, which is formed by a side face on the magnetic unit.
  • the separating tool furthermore includes a fork unit forming the slot, and which is displaceable between an inactive position outside the bundle of pulled out bars and an active position parallel with the magnetic unit for supporting the pulled out bars during the counting operation.
  • the separating tool furthermore includes a pivotable fork which is pivotable between an inactive position outside the bundle of pulled out bars and an active position parallel with the magnetic unit for establishing a support for the pulled out bars after deactivating the magnetic unit.
  • the fork unit may also consist of the slot itself where the counting plane is provided.
  • the at least one mandrel of the counting unit may preferably be a wedge-shaped or pointed mandrel.
  • the stop plane which is substantially perpendicular to the sidewalls of the slot may preferably be substantially parallel with the bars and be provided in the shape of a limit stop or a mandrel, and where the distance between the stop plane and a mandrel connected to a counting mechanism is either one bar diameter or a multiple of the bar diameter.
  • Fig. 1 shows a bundle of bars with support and free end part and limit stop
  • Fig. 2 shows a limit stop which is displaced down towards the free end part of the bundle
  • Fig. 3 shows separation by movable wedge with associated limit stop and slot
  • Fig. 4 shows a magnetic limit stop which is displaced down towards the free end part of the bundle
  • Fig. 5a shows a displaceable fork with slot
  • Fig. 5b shows a pivotable fork with slot
  • Fig. 5c shows an example where the displaceable fork is the counting slot
  • Fig. 6 shows counting by two mandrels - first step in the sequence
  • Fig. 7 shows counting by two mandrels - second step in the sequence
  • Fig. 8 shows counting by two mandrels - third step in the sequence;
  • Fig. 9 shows displaceable mandrel with positioning means - first step in the sequence;
  • Fig. 10 shows displaceable mandrel with positioning means - second step in the sequence;
  • Fig. 11 shows displaceable mandrel with positioning means - third step in the sequence;
  • Fig. 12 shows displaceable mandrel with positioning means - fourth step in the sequence;
  • Fig. 13 shows displaceable mandrel with positioning means - fifth step in the sequence.
  • Fig. 1 On Fig. 1 appears a bundle 1 of bars 2 with two supports and where one support 3 is disposed a distance from one end of the bundle, producing a projecting free end part 4, where the weight and self- weight of the bars provide that the bars bend down more or less. Furthermore, there is shown a displaceable limit stop 5 which is arranged in continuation of the support 3 and which has a limit face 6 for the free end parts 4 of the bars.
  • a separating unit 7 with a limit stop 5 with a limit surface 6 which is displaced down against the free end part 4 of the bundle, such that some of the bars 2 are brought to bear against a limit face 6.
  • a separating tool 8 which together with the limit face 6 or by itself provides a slot 9 with two opposed sidewalls 9 with mutual spacing 11 which is adapted so that the pulled out bars 12 may only be inserted side by side in one layer in the slot 9 providing the counting plane 13 where the counting is performed, as the counting unit 14 is integrated with the separating tool 8 thereby.
  • Fig. 3 shows a separating unit 7, here including an arm 15 which is disposed at a position above the support 3 for the bundle and with an underside forming the limit face 6 and a movable wedge 16 which is connected with a vibrator for vibrating moving in a bundle 1 of the bars 2, and that the upwards facing side face 17 of the wedge forms a sidewall 10 in the slot, the other sidewall 10 of which being formed by the limit face 6.
  • Fig. 4 shows a magnetic unit 18 which is displaced downwards against the free end part 4 of the bundle for pulling the bars 2 out of the bundle 1 and into contact with the limit face 6, which is formed by a side face on the magnetic unit 18.
  • the separating tool may include a fork unit 19 in various embodiments.
  • Fig. 5a thus shows a fork unit 19 forming the slot 9, and where the fork unit 19 is displaceable between an inactive position outside the bundle of pulled out bars 12 and an active position parallel with the magnetic unit 18 for supporting the pulled out bars 12 during the counting operation.
  • the fork unit 19 is displaceable between an inactive position outside the bundle of pulled out bars 12 and an active position parallel with the magnetic unit 18 for supporting the pulled out bars 12 during the counting operation.
  • Fig. 5b shows the fork unit 19 as a pivotable fork 21 which is pivotable between an inactive position outside the bundle of pulled out bars 12 and an active position parallel with the magnetic unit 18 for establishing a support for the pulled out bars 12 after deactivating the magnetic unit 18.
  • the fork unit 19 is pivotable between an inactive position outside the bundle of pulled out bars 12 and an active position parallel with the magnetic unit 18 for establishing a support for the pulled out bars 12 after deactivating the magnetic unit 18.
  • Fig. 5c shows that the fork unit 19 may also consist of the slot 9 itself where the counting plane 13 is to be provided.
  • the counting unit 14 may include at least a second mandrel 22, where in the active position, the first mandrel 23 is disposed so that it bears against one side of a given bar 24, and where in the active position, the second mandrel 22 is disposed at the opposite side of the bar 24 in question, the spacing between the mandrels corresponding to the bar diameter, and that a press unit 25 is arranged largely in parallel with the slot 9 and adapted to exert a pressure on the bars 12 in the slot in direction towards the stop plane 26, and that the stop plane 26 is constituted by one of the mandrels 22, 23 in active position.
  • the counting at the mandrels 22, 23 is performed by the two mandrels 22, 23 being moved in a sequence where the first sequential step is shown on Fig. 6.
  • the first mandrel 23 is moved through the counting plane 13 at one side of a given first bar 24, and where the second bar 22 is standing in inactive position.
  • Second sequential step is shown on Fig. 7 where the second mandrel 22 is moved down on the opposite side of the first bar 24, whereby a gap 27 is formed between the first bar 24 and an adjacent second bar 28.
  • Fig. 8 Third sequential step is shown on Fig. 8 where the first mandrels 23 is passed into the gap or interspace 27 simultaneously with the second mandrel 22 being moved out of the gap 27, ending the said sequence, after which a new sequence is commenced.
  • the said sequences are registered by a counting mechanism 29 which is connected to at least one of the mandrels 22, 23.
  • the counting unit 14 is displaceable mandrel 30 with positioning means 31.
  • the mandrel 30 may be moved in a direction 32 which is substantially parallel with the sidewalls 10 of the slot 9.
  • the mandrel 30 is moreover displaceable largely perpendicularly to the sidewalls 10 of the slot 9 between an inactive position, where the mandrel 30 is located outside the slot 9, and an active position, where the mandrel 30 is displaced through the layer of bars 12 in the slot 9.
  • the mandrel 30 can be positioned at a certain distance from a stop plane 26 which is substantially perpendicular to the sidewalls 10 of the slot 9.
  • the mandrel 30 is connected to a counting mechanism 33.
  • the counting is performed in a sequence where the five steps in the sequence are shown on Figs. 9-13.
  • First sequential step is shown on Fig. 9.
  • the mandrel 30 is disposed at a distance from a stop plane 26 and set in active position.
  • the mandrel 30 is moved in a direction 32 against the stop plane such that possible gaps or interspaces between the bars are eliminated.
  • the distance from the mandrel 30 to the stop plane 26 is then determined by the counting mechanism 33, and the number of bars 12 is calculated by dividing the distance between mandrel 30 and stop plane 26 with the bar diameter 34. If the number of bars is not equal to the desired number, the sequence is continued.
  • the sequence is continued by a second sequential step in that the lowermost of the sidewalls 10 in the slot 9 is moved in a direction 35, whereby the bars 12 are squeezed and retained.
  • the sequence is continued by a third sequential step where the mandrel 30 is displaced to an inactive position and displaced in a direction 36 which is parallel with the counting plane 13 and the slot 9 with direction against the stop plane 26.
  • the sequence is continued by a fourth sequential step where the mandrel 30 is displaced to an active position at a distance from the stop plane 26 determined in beforehand by the counting mechanism 33, and where the distance between the mandrel 30 and stop plane 26 corresponds to a multiple of the bar diameter for the desired number of bars 12.
  • Fig. 13 the sequence is finished by a fifth sequential step, where in its active position, the mandrel 30 is displaced in a direction 37 which is substantially parallel with the counting plane 13 in direction away from the stop plane 26, pushing the excess bars 38 back into the bundle 1 of an undetermined number of bars 2.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Sorting Of Articles (AREA)

Abstract

La présente invention concerne un appareil et un procédé pour séparer et compter un certain nombre de barres uniformes (2), telles que des barres de renforcement rondes, à partir d'un faisceau (1) d'un nombre indéterminé de barres (2), avec une unité de séparation (7) pour extraire un certain nombre de barres (2) du faisceau (1) de barres, et une unité de comptage (14) interagissant avec l'unité de séparation (7) et fournissant un plan de comptage (13) sur lequel les barres séparées (12) sont disposées. Au niveau de l'unité de séparation (7) est disposée une fente (9) avec deux parois latérales opposées (10) avec un espacement mutuel (11), qui est adapté de telle sorte que les barres (12) peuvent seulement être introduites côte à côte dans une couche dans la fente (9). L'unité de comptage (14) comporte l'outil de séparation (8), étant donné que la fente (9) fournit le plan de comptage (13) et sert à retenir les barres (12) dans une couche pendant l'opération de comptage. Le comptage est effectué au moyen de mandrins (22, 23), fournissant une identification mécanique très précise des barres séparées (12).
PCT/DK2008/000149 2007-04-23 2008-04-23 Appareil et procédé pour compter et séparer des barres WO2008128541A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA200700594A DK177122B1 (da) 2007-04-23 2007-04-23 Apparat samt fremgangsmåde til at tælle og separere stænger
DKPA200700594 2007-04-23

Publications (1)

Publication Number Publication Date
WO2008128541A1 true WO2008128541A1 (fr) 2008-10-30

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PCT/DK2008/000149 WO2008128541A1 (fr) 2007-04-23 2008-04-23 Appareil et procédé pour compter et séparer des barres

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DK (1) DK177122B1 (fr)
WO (1) WO2008128541A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20101434A1 (it) * 2010-07-30 2012-01-31 Siemens Vai Metals Tech Sas Sistema di incanalamento e scarico di materiali laminati a caldo
EP3228400A1 (fr) * 2016-04-08 2017-10-11 PEDAX GmbH Procédé et appareil permettant de diviser un groupe de barres métalliques dans un premier et un second sous-groupe
IT201600084716A1 (it) * 2016-08-11 2018-02-11 Buffoli Transfer S P A Dispositivo per separare singole barre da un fascio
CN111498217A (zh) * 2020-05-06 2020-08-07 电装(天津)空调部件有限公司 一种if扁管自动装箱装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0188850A2 (fr) * 1985-01-21 1986-07-30 S.A.E. Srl Società Automatismi Elettronici Dispositif pour alimenter des barres
JPH07108327A (ja) * 1993-09-21 1995-04-25 Bunsei Sai 棒鋼曲機
WO2007043089A1 (fr) * 2005-10-14 2007-04-19 Schnell S.P.A. Procede et appareil d'alimentation automatique de barres de section metallique

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0188850A2 (fr) * 1985-01-21 1986-07-30 S.A.E. Srl Società Automatismi Elettronici Dispositif pour alimenter des barres
JPH07108327A (ja) * 1993-09-21 1995-04-25 Bunsei Sai 棒鋼曲機
WO2007043089A1 (fr) * 2005-10-14 2007-04-19 Schnell S.P.A. Procede et appareil d'alimentation automatique de barres de section metallique

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20101434A1 (it) * 2010-07-30 2012-01-31 Siemens Vai Metals Tech Sas Sistema di incanalamento e scarico di materiali laminati a caldo
WO2012013571A1 (fr) * 2010-07-30 2012-02-02 Siemens Vai Metals Technologies S.R.L. Système pour canaliser et décharger des matières laminées à chaud
CN103052453A (zh) * 2010-07-30 2013-04-17 西门子公司 用于引导和卸载热轧材料的系统
EP3228400A1 (fr) * 2016-04-08 2017-10-11 PEDAX GmbH Procédé et appareil permettant de diviser un groupe de barres métalliques dans un premier et un second sous-groupe
WO2017174721A1 (fr) 2016-04-08 2017-10-12 Pedax Gmbh Procédé et appareil pour diviser un groupe de barres métalliques en premier et deuxième sous-groupes
IT201600084716A1 (it) * 2016-08-11 2018-02-11 Buffoli Transfer S P A Dispositivo per separare singole barre da un fascio
WO2018029614A3 (fr) * 2016-08-11 2018-05-31 Buffoli Transfer S.P.A. Dispositif de séparation de barres uniques d'un faisceau
CN111498217A (zh) * 2020-05-06 2020-08-07 电装(天津)空调部件有限公司 一种if扁管自动装箱装置
CN111498217B (zh) * 2020-05-06 2022-02-18 电装(天津)空调部件有限公司 一种if扁管自动装箱装置

Also Published As

Publication number Publication date
DK200700594A (da) 2008-10-24
DK177122B1 (da) 2011-11-14

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