EP0841110A2 - Machine d'assemblage d'armatures pour pieux de fondation - Google Patents

Machine d'assemblage d'armatures pour pieux de fondation Download PDF

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Publication number
EP0841110A2
EP0841110A2 EP97203140A EP97203140A EP0841110A2 EP 0841110 A2 EP0841110 A2 EP 0841110A2 EP 97203140 A EP97203140 A EP 97203140A EP 97203140 A EP97203140 A EP 97203140A EP 0841110 A2 EP0841110 A2 EP 0841110A2
Authority
EP
European Patent Office
Prior art keywords
station
machine
bars
hereinbefore
metallic wire
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP97203140A
Other languages
German (de)
English (en)
Other versions
EP0841110A3 (fr
EP0841110B1 (fr
Inventor
Gerhard Roelof Steenbergen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Highstone Venture Capital NV
Original Assignee
Highstone Venture Capital NV
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 Highstone Venture Capital NV filed Critical Highstone Venture Capital NV
Publication of EP0841110A2 publication Critical patent/EP0841110A2/fr
Publication of EP0841110A3 publication Critical patent/EP0841110A3/fr
Application granted granted Critical
Publication of EP0841110B1 publication Critical patent/EP0841110B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F27/00—Making wire network, i.e. wire nets
    • B21F27/12—Making special types or portions of network by methods or means specially adapted therefor
    • B21F27/121—Making special types or portions of network by methods or means specially adapted therefor of tubular form, e.g. as reinforcements for pipes or pillars
    • B21F27/122—Making special types or portions of network by methods or means specially adapted therefor of tubular form, e.g. as reinforcements for pipes or pillars by attaching a continuous stirrup to longitudinal wires
    • B21F27/124—Making special types or portions of network by methods or means specially adapted therefor of tubular form, e.g. as reinforcements for pipes or pillars by attaching a continuous stirrup to longitudinal wires applied by rotation

Definitions

  • the machine is used to form reinforcement stands for foundation piles in reinforced concrete achieved by assembling a plurality of components comprising longitudinal bars, brackets and spirals of metallic wire.
  • Reinforcement stands for foundation piles in reinforced concrete are normally composed of a plurality of longitudinal bars enveloped externally in a containing spiral of metallic wire.
  • the components of the reinforcement stands are normally assembled by means of a succession of operations which are almost all manual operations; they require many workers, are long and laborious, and involve great physical effort on the part of the workers. In particular, there are operating difficulties when the components to be assembled are positioned and are maintained in position; in the spiralling operations and when the finished reinforcement stands are removed from the working surfaces or supports on which they lie during assembly.
  • the purpose of this invention is to provide a machine to assemble reinforcement stands for foundation piles with a high level of automation of the working cycle, which allows products of an optimum quality to be obtained, even with different characteristics, in reasonably short times.
  • a further purpose of the invention is to obtain a machine which makes it possible to reduce to a minimum the manual operations of the workers and therefore their number and physical efforts required.
  • a bench for storing the longitudinal bars has guide elements across which the worker slides the bars towards the first station.
  • the worker after placing the desired number of bars on the rotary system, according to the type and size of the reinforcement stand to be assembled, carries out the welding of the brackets onto the bars; subsequently he brings forward the rotary system, and then he makes the stand rotate, feeding the rotary system with new bars which are welded from time to time along the periphery of the brackets.
  • the welding operations are carried out automatically by one or more welding arms which are movable lengthwise.
  • This second station comprises a rotary system which defines a housing bed for the stand; this system cooperates with a spiralling device which is movable lengthwise and associated with a reel of metallic wire.
  • the spiralling device has a varible speed in order to make the pitch of the spiral of metallic wire able to be changed.
  • the worker responsible for assembling the stand is protected, according to a variant, by the appropriate safety system comprising a photo-electric cell device which causes the machine to stop when the worker finds himself working near the second station with the spiralling device functioning.
  • the structural simplicity of the machine and its limited overall bulk enable it to be installed quickly and easily in limited spaces, and moreover it can easily be moved from one work place to another.
  • the semi-automatic machine 10 to assemble reinforcement stands 11 for foundation piles in reinforced cement comprises substantially a bench 12 to store the longitudinal bars 13, a first station 14 to position and weld the bars, a second spiralling station 15.
  • the machine 10 also has a bridge structure 17 with a jib crane 17a to support auxiliary equipment.
  • the storage bench 12, the first station 14 and the second station 15 are placed parallel and have a longitudinal development mating with the size of the reinforcement stand 11.
  • control and command centre 16 has a remote control device 16a by means of which the main commands of the machine 10 can be carried out.
  • the storagee bench 12 in this case composed of four trestles 112, has guide elements 12a which can have a first position "I”, in which they are inclined and resting on a collection plane 18 of the first station 14, and a second position "II” in which they are raised from the collection plane 18.
  • the first station 14 is composed of a supporting structure 20 on which is mounted an electrically driven rotary system comprising, in this case, a plurality of pulleys 21 and chains 22 defining an arched positioning bed 23 for the longitudinal bars 13.
  • a desired number of the chains 22 have pins 24 to laterally contain the individual longitudinal bars 13 and to allow the precise positioning of the longitudinal reinforcement components to be assembled (Fig.3).
  • the constraining means 30 are composed of rounded disks 30a with reciprocally facing convex surfaces cooperating with the annular brackets 43 placed at the ends of the reinforcement stands 11, 111.
  • constraining means 30 rotating in coordination with the feed of the chains 28, hold the reinforcement stand 11, 111 at the two ends, in an operationally correct position during the spiralling step; the constraining means 30 are movable lengthwise and can thus be positioned suitably according to the length of the reinforcement stand 11, 111.
  • a guide 31 in this case composed of a track 31a, extending lengthwise from one end to the other of the second station 15 in a position opposed to the first station 14; on this guide 31 there is a spiralling device 33 mounted movable on a trolley 32 and associated with a reel 34 of metallic wire 35.
  • the motorised pinch roll unit 36 composed of two counter-rotating rolls 36a, 36b in contact with the metallic wire 35, causes the unwinding from the reel 34 of the metallic wire 35 which is guided into the spiralling device 33 by two pairs of rolls 37a, 37b arranged at right angles to each other and constituting the first guide unit 37.
  • the metallic wire 35 then undergoes a straightening process on the horizontal plane in correspondence with the straightening unit 38.
  • the straightening unit 38 comprises a pair of vertical support rolls 38a placed aligned and parallel with each other, and a contrasting element 38b movable at a right angle to the direction of the metallic wire 35 as it passes through, as a function of the diameter of the wire 35.
  • the straightening of the metallic wire 35 is obtained by the contact between the contrasting element 38b and the walls of the metallic wire 35 resting on the vertical rolls 38a.
  • the metallic wire 35 after straightening, is guided towards the second guide unit 39 which determines the direction it leaves the spiralling device 33.
  • the second guide unit 39 comprises, in this case, two pairs of rolls 39a, 39b, arranged substantially at right angles to each other, lying near the outlet mouth 33a of the spiralling device 33.
  • the calender roll 40 advantageously activated when the metallic wire 35, with a high diameter, needs pre-bending in order to be correctly spiralled around the stand 111.
  • the spiralling device 33 has adjustment means 41 for the pinch roll unit 36 by means of which it is possible to adjust the reciprocal distance between the counter-rotating rolls 36, 36b according to the diameter of the metallic wire 35.
  • the second station 15 moreover has second mechanical arms 42, hydraulically activated, to remove the finished reinforcement stands 11 from the machine 10.
  • the worker 19 takes from the storage bench 12 the number of longitudinal bars 13 needed to form the stand 11 and, by sliding them on the guide elements 12a in the position "I", he arranges them on the collection plane 18; then he raises the guide elements 12a to the position "II” in such a way as to be able to work with greater freedom of movement near the first station 14.
  • the worker 19 progressively arranges the annular brackets 43 resting on the longitudinal bars 13 and welds them together.
  • the worker can then activate the lifting device for the first mechanical arms 25, causing the stand 111 to be transferred to the housing bed 29 of the second station 15.
  • the worker 19 then arranges to weld the end of the metallic wire 35 as it leaves the outlet mouth 33a of the spiralling device 33 to one end of the reinforcement stand 111 before activating the spiralling device 33 and the feeding system comprising chains 28 of the second station 15.
  • the speed of movement of the spiralling device 33 along the track 31 can be varied, thus allowing the pitch of the spiral 44 to be varied as necessary.
  • the pitch of the spiral 44 can be adjusted by the addition of means to modulate the speed of rotation of the counter-rotating rolls 36a, 36b of the pinch roll unit 36, thus making it possible to vary the speed at which the metallic wire 35 is expelled from the spiralling device 33.
  • the feeding system comprising chains 28 and the spiralling device 33 automatically stop and the worker 19 can cut the metallic wire 35 in correspondence with the outlet mouth 33a, then weld it to the completely assembled reinforcement stand 11. Subsequently, by activating the second mechanical arms 42 the reinforcement stand 11 is removed from the machine 10.
  • the operation of spiralling the subsequent assembly cycle is started by the spiralling device 33 from the position in which it concludes spiralling the preceding cycle, as it is not necessary to take back the spiralling device 33 to its original position.
  • the action of the spiralling device 33 causes the activation of a photo-electric cell safety system, which stops the spiralling device 33 from functioning every time there are operational anomalies or obstructions near the second station 15 during the spiralling step.
  • the longitudinal bars 13 are welded onto the annular brackets 43 automatically by articulated arms movable lengthwise from one end to the other of the first station 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Piles And Underground Anchors (AREA)
  • Foundations (AREA)
  • Wire Processing (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Building Environments (AREA)
  • Rod-Shaped Construction Members (AREA)
EP97203140A 1996-10-09 1997-10-09 Machine d'assemblage d'armatures pour pieux de fondation Expired - Lifetime EP0841110B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITUD960190 1996-10-09
IT96UD000190A IT1288997B1 (it) 1996-10-09 1996-10-09 Macchina semi-automatica per l'assemblaggio di gabbie di armatura per pali di fondazione

Publications (3)

Publication Number Publication Date
EP0841110A2 true EP0841110A2 (fr) 1998-05-13
EP0841110A3 EP0841110A3 (fr) 1999-05-12
EP0841110B1 EP0841110B1 (fr) 2002-03-06

Family

ID=11422203

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97203140A Expired - Lifetime EP0841110B1 (fr) 1996-10-09 1997-10-09 Machine d'assemblage d'armatures pour pieux de fondation

Country Status (8)

Country Link
EP (1) EP0841110B1 (fr)
AT (1) ATE213977T1 (fr)
DE (1) DE69710843T2 (fr)
DK (1) DK0841110T3 (fr)
ES (1) ES2170330T3 (fr)
IT (1) IT1288997B1 (fr)
PT (1) PT841110E (fr)
TW (1) TW321618B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001039908A1 (fr) * 1999-12-01 2001-06-07 Kamal Neckoula Machine et procede de fabrication pour cages de fer a beton
EP1364726A2 (fr) * 2002-05-23 2003-11-26 NGR Limited Dispositif pour la fabrication de cages de renforcement

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2091540A (en) * 1936-07-18 1937-08-31 American Concrete & Steel Pipe Means for making reinforcement wire cages
US3661186A (en) * 1969-12-29 1972-05-09 W E Dunn Mfg Co Apparatus and process for making concrete pipe reinforcement member
GB1455335A (en) * 1973-02-28 1976-11-10 Goeborgs Betongpalar A Apparatus for assembling reinforcement bodies for concrete piles
DE3611482A1 (de) * 1986-04-05 1987-10-08 Zueblin Ag Maschine zum herstellen von bewehrungskoerben fuer stahlbeton-rohre oder dergleichen
JPH06167019A (ja) * 1992-12-01 1994-06-14 Hiraoka Kinzoku Kogyo Kk 鉄筋篭の製造方法
DE4420852A1 (de) * 1994-06-15 1996-01-25 Halitdin Karakoc Verfahren und Vorrichtung zur Herstellung von Bewehrungskörben

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2091540A (en) * 1936-07-18 1937-08-31 American Concrete & Steel Pipe Means for making reinforcement wire cages
US3661186A (en) * 1969-12-29 1972-05-09 W E Dunn Mfg Co Apparatus and process for making concrete pipe reinforcement member
GB1455335A (en) * 1973-02-28 1976-11-10 Goeborgs Betongpalar A Apparatus for assembling reinforcement bodies for concrete piles
DE3611482A1 (de) * 1986-04-05 1987-10-08 Zueblin Ag Maschine zum herstellen von bewehrungskoerben fuer stahlbeton-rohre oder dergleichen
JPH06167019A (ja) * 1992-12-01 1994-06-14 Hiraoka Kinzoku Kogyo Kk 鉄筋篭の製造方法
DE4420852A1 (de) * 1994-06-15 1996-01-25 Halitdin Karakoc Verfahren und Vorrichtung zur Herstellung von Bewehrungskörben

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 018, no. 496 (M-1674), 16 September 1994 & JP 06 167019 A (HIRAOKA KINZOKU KOGYO KK), 14 June 1994 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001039908A1 (fr) * 1999-12-01 2001-06-07 Kamal Neckoula Machine et procede de fabrication pour cages de fer a beton
EP1364726A2 (fr) * 2002-05-23 2003-11-26 NGR Limited Dispositif pour la fabrication de cages de renforcement
EP1364726A3 (fr) * 2002-05-23 2004-01-07 NGR Limited Dispositif pour la fabrication de cages de renforcement
US6925705B2 (en) 2002-05-23 2005-08-09 Ngr Limited Cage making apparatus

Also Published As

Publication number Publication date
TW321618B (en) 1997-12-01
ITUD960190A1 (it) 1998-04-09
PT841110E (pt) 2002-08-30
ES2170330T3 (es) 2002-08-01
EP0841110A3 (fr) 1999-05-12
IT1288997B1 (it) 1998-09-25
DK0841110T3 (da) 2002-05-21
ITUD960190A0 (it) 1996-10-09
DE69710843D1 (de) 2002-04-11
DE69710843T2 (de) 2002-09-19
EP0841110B1 (fr) 2002-03-06
ATE213977T1 (de) 2002-03-15

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