EP0412042A1 - Installation pour la fabrication de renforcements métalliques - Google Patents

Installation pour la fabrication de renforcements métalliques Download PDF

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Publication number
EP0412042A1
EP0412042A1 EP90500075A EP90500075A EP0412042A1 EP 0412042 A1 EP0412042 A1 EP 0412042A1 EP 90500075 A EP90500075 A EP 90500075A EP 90500075 A EP90500075 A EP 90500075A EP 0412042 A1 EP0412042 A1 EP 0412042A1
Authority
EP
European Patent Office
Prior art keywords
wagons
installation
carrying
reinforcement
ments
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.)
Withdrawn
Application number
EP90500075A
Other languages
German (de)
English (en)
Inventor
S.L. Ferinter
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.)
FERINTER S.L.
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0412042A1 publication Critical patent/EP0412042A1/fr
Withdrawn legal-status Critical Current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
    • B21F27/125—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 individual stirrups to longitudinal wires

Definitions

  • the patent deals with reinforcements used in cons­truction , such as in pillars, beams, supports, girders, etc.
  • the manufacture of reinforcements of this kind is carried out either on site, where the construction is taking place, or in a factory, in which case the prepared reinfor­cements are transported to the construction site to be arranged in the place in question, that is, for assembly.
  • This traditional system needs specially skilled workers, called steel erectors or steelworkers, who usually develop a high level of production, in the region of 45 to 50 Kg. of iron per hour and even up to 60 Kg. of iron per hour per person.
  • steel erectors or steelworkers who usually develop a high level of production, in the region of 45 to 50 Kg. of iron per hour and even up to 60 Kg. of iron per hour per person.
  • the problem with this traditional method of assembly lies in the high production costs, due especia­lly to the high cost of skilled labour and its scarcity as workers of this kind are needed by all constructors.
  • pre-shaped clips which are fitted where the reinforcement members cross. These clips are provided with projections which are picked up by a tool which automatically braids the said projections until a perfect closure of the clip is obtained.
  • the system of welding the pre-assembled reinforce­ment at the meeting points by using skilled labour is also known. Apart from the kind of welding to be used, with or without flux, the production in Kilograms per hour per person will remain at a maximum of 60 and the welded rein­forcement will be more rigid, which is not advisable.
  • One aim of the patent is to attain a method of pro­duction which provides a greater output of reinforcements of the order of at least 30 per cent and usually 50 per cent more in equality of conditions, with which the cost of the finished reinforcement can be quite considerably cheape­ned, even taking into account the amortization or repayment for the installations and the tools.
  • Another aim of the patent is to obtain an automatic or semi-automatic installation which moves the reinforcements for their pre-assembly and assembly, and in which the workers remain static while the reinforcements are moved in front of their work stations.
  • pre-shaped clips and braiding tools are used, after the clips have first been positioned by the worker or operator.
  • Each worker is provided with an automatic braider and a sufficient amount of clips to be arranged at the binding points of each rein­forcement.
  • the operations of cutting and shaping the pie­ces of iron are carried out in the same way as with the traditional methods, with the special features of the patent coming in after the shaping of the components.
  • each wagon is moved along the rails of this pre-assembly area to another rail in which means are fitted to move the wagons at a variable speed and in that these means go together with other ones in the lower part of each wagon.
  • a variator motor is provided, with a connection on its shaft outlet for an endless chain of a similar length to that of the rail; this endless chain will engage with the projections on the wagons and move them along the assembly track.
  • the reinforcement on the wagons circulates at a certain speed while the workers remain stationary, binding together the meeting points of the reinforcement with the clips and the braiding machine as each section of the reinforcement passes in front of their work stations.
  • the number of workers is logically variable, given that it is obvious to point out that, in general terms, a greater work rate can be achieved with a higher number of operators.
  • the traverse speed of the wagons which carry the reinforcement is variable as was stated previously, and it should be considered that with an equal number of operators or workers, the speed of the wagon will be slower when the reinforcement is more complex and has a greater number of binding points in each section.
  • any specific reinforce­ment will be completely finished and ready to be moved into stock, loaded onto a lorry, etc. It must be considered here that the pieces of iron, for assembly of the reinforcement on site are placed on the wagon at the beginning of the process, so that when the reinforcement is finished, these pieces of iron can be fastened to it so that they are controlled until the time of assembly on site.
  • the wagons can be provided, if desired, with a gentle traverse movement towards the work track, and the worker or workers could perfectly carry out the pre-assembly of the reinforcement during this movement.
  • a pre-assem­bled reinforcement 1 is based on longitudinal pieces of iron 2 and transverse iron stirrups or hoops 3, which must be joined together with wire at the meeting points, for instance at 4, 5, and 6 etc. with the help of already pre-­shaped clips which are placed at these points and with tools that braid together the ends of these clips.
  • Figure 3 shows a wagon or cart 7 on which a structure based on trestle bents or A-frames 8 - 9 has been mounted to procure a support base for the reinforcements,
  • the wagon moves along rails 11 and 12 using its own means of rolling, which are not shown but could be, for instance, wheels, bearing, etc.
  • This order or succession might be altered, making area 16 a return area only for the empty wagons from the first pre-assembly area 13. This situation would respond, for example, to the fact of only one group of workers being available.
  • Figure 8 we can see an enlargement of the preassembly area 13 and the position of one of the wagons 7 with the trestle bents.
  • A indicates the direction in which the pieces of iron enter onto the trestle bents, which enter from direction C.
  • the wagons 7, once loaded with the pre-assembled reinforcements, are transferred in direction B towards the binding line.
  • Figure 6 shows a wagon 7, illustrated here without either trestle bents or reinforcements, on the rails 11 of the binding areal
  • the aim of D and E is to indicate the work stations of the operators, in this case on both sides of the wagon, when it is moved by the action of the chain or rack rail 18 on the stops 23 and 22 of the wagon itself.
  • Figure 8 finally, shows a reinforcement with a greater number of binding points 24 in each section, than the one shown in Figure 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Automatic Assembly (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Handcart (AREA)
EP90500075A 1989-08-03 1990-07-25 Installation pour la fabrication de renforcements métalliques Withdrawn EP0412042A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES8902759 1989-08-02
ES8902759A ES2015186A6 (es) 1989-08-03 1989-08-03 "procedimiento de realizacion de armaduras metalicas".

Publications (1)

Publication Number Publication Date
EP0412042A1 true EP0412042A1 (fr) 1991-02-06

Family

ID=8263448

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90500075A Withdrawn EP0412042A1 (fr) 1989-08-03 1990-07-25 Installation pour la fabrication de renforcements métalliques

Country Status (8)

Country Link
EP (1) EP0412042A1 (fr)
JP (1) JPH03151463A (fr)
AU (1) AU636634B2 (fr)
CA (1) CA2022455C (fr)
DD (1) DD298069A5 (fr)
ES (1) ES2015186A6 (fr)
PT (1) PT94893A (fr)
ZA (1) ZA905888B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2264640B1 (es) * 2005-06-17 2007-12-01 Ferraplana, S.L. Equipo automatico para la fabricacion de armaduras metalicas.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3874062A (en) * 1973-03-16 1975-04-01 Kajima Corp Process for fabricating a columnar assembly of spaced reinforcing bars
FR2570625A1 (fr) * 1984-09-21 1986-03-28 Lafon Guy Machine a chaine integree flexible, pour fabriquer automatiquement des armatures metalliques, notamment pour le beton arme
FR2623548A1 (fr) * 1987-11-24 1989-05-26 Baumann Wolfgang Dispositif de maintien pour l'assemblage d'armatures en forme de cage pour elements en beton

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3874062A (en) * 1973-03-16 1975-04-01 Kajima Corp Process for fabricating a columnar assembly of spaced reinforcing bars
FR2570625A1 (fr) * 1984-09-21 1986-03-28 Lafon Guy Machine a chaine integree flexible, pour fabriquer automatiquement des armatures metalliques, notamment pour le beton arme
FR2623548A1 (fr) * 1987-11-24 1989-05-26 Baumann Wolfgang Dispositif de maintien pour l'assemblage d'armatures en forme de cage pour elements en beton

Also Published As

Publication number Publication date
ES2015186A6 (es) 1990-08-01
CA2022455C (fr) 1994-06-28
PT94893A (pt) 1992-03-31
CA2022455A1 (fr) 1991-02-04
ZA905888B (en) 1991-04-24
JPH03151463A (ja) 1991-06-27
DD298069A5 (de) 1992-02-06
AU636634B2 (en) 1993-05-06
AU6000790A (en) 1991-02-07

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