EP0007852B1 - Chaîne pour la fabrication d'éléments en béton - Google Patents

Chaîne pour la fabrication d'éléments en béton Download PDF

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Publication number
EP0007852B1
EP0007852B1 EP79400494A EP79400494A EP0007852B1 EP 0007852 B1 EP0007852 B1 EP 0007852B1 EP 79400494 A EP79400494 A EP 79400494A EP 79400494 A EP79400494 A EP 79400494A EP 0007852 B1 EP0007852 B1 EP 0007852B1
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EP
European Patent Office
Prior art keywords
floats
float
concrete
moulds
fact
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.)
Expired
Application number
EP79400494A
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German (de)
English (en)
French (fr)
Other versions
EP0007852A1 (fr
Inventor
Mircéa Borcoman
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Individual
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Individual
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Publication date
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Publication of EP0007852A1 publication Critical patent/EP0007852A1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B15/00—General arrangement or layout of plant ; Industrial outlines or plant installations

Definitions

  • the invention relates to a chain for the production of concrete elements (unreinforced, reinforced or prestressed) such as piles, posts, in particular for power lines, slabs, beams, panels, curbs, comprising means for pouring concrete in molds and a liquid tank for transporting the concrete elements from the pouring means to the evacuation means, with the passage of these concrete elements through a hardening circuit.
  • concrete elements unreinforced, reinforced or prestressed
  • a production line of this kind is known, in particular from the German patent application published before DOS examination No. 2,043,071.
  • the molds in which the material is poured are immersed in the liquid of the tank so as to be carried, at least partially, by this liquid.
  • the arms supporting the molds during their movement are subjected to less significant forces, resulting in reduced deformations.
  • Such a solution is advantageous in particular for molding elements having a relatively large mass.
  • the solution proposed by this German patent application lacks flexibility, in particular when the type or shape of the products to be produced is called upon to change relatively frequently, with the need to change the molds.
  • German patent No. 477 368 provides for the use of floats, in a liquid tank, for transporting loads. However, this patent does not refer to a production line for concrete elements.
  • the present invention aims, above all, to provide a production line, of concrete elements, of the kind defined in the preamble of claim 1, which is very flexible in use and which can be adapted easily and quickly. to different types or forms of products to be manufactured.
  • a chain for manufacturing concrete elements of the kind in question is characterized in that it comprises a chain of floats capable of being moved in the tank by supporting, in particular through the hardening circuit, the concrete elements which have just been removed from the mold, or the molds into which the concrete elements have been poured, these floats comprising means capable of modifying their balance by introducing inside or evacuating from the floats a liquid , in particular that of the tank, means being further provided for bringing the floats back to the concrete pouring means.
  • the means suitable for modifying the balance of the floats preferably comprise remote-controlled solenoid valves and means for admitting compressed gas into the float to expel the liquid.
  • the floats for at least part of their displacement corresponding to the crossing of the hardening circuit, are advantageously immersed, with the concrete elements which they support, in the liquid of the tank, this liquid being in particular progressively heated along tank.
  • Figure 1 of these drawings is a schematic longitudinal section of a chain for the manufacture of concrete elements, with immediate release using a 180 ° tilting device, in which the movement of the floats is ensured by floating throughout the liquid tank, according to the invention.
  • FIG. 2 shows, on a larger scale, the means for pouring concrete and demolding the production line of FIG. 1.
  • Figure 3 is a schematic longitudinal section of a production line, with immediate release using a 90 ° tilting device, in which the movement of the floats is first carried out by floating during the gripping period concrete, and then by immersion in the tank liquid.
  • Figure 4 shows, on a larger scale, the concrete pouring and demolding means of the chain of Figure 2, suitable for the manufacture of electrical poles.
  • FIG. 5 is a schematic longitudinal section of an immediate demoulding production line, in which the elements, in unreinforced concrete, are placed directly on the floats, the latter describing, in the tank, a closed loop circuit in the vertical plane with floating in the forward direction and immersion in the liquid for the return.
  • Figure 6 is a cross section along 1-1, fig. 5.
  • FIG. 7 is a plan view with parts cut away of a production line in which the hardening of the concrete elements takes place in the molds, the movement of the floats taking place in a looped circuit in a horizontal plane, the tank with liquid having two adjacent compartments, the displacement being carried out by floating in a first compartment of the tank and by immersion in the liquid for the adjacent compartment.
  • Figure 8 is a cross section along 1-1, fig. 7.
  • Figure 9 is a cross section illustrating the mounting of the manufacturing line of Figures 7 and 8 in a floating hull of a boat.
  • Figure 10 is a perspective view, with part, cut, of a "float board" formed by an envelope filled with a material, in particular hydrophobic.
  • Figure 11 shows, similarly to Figure 10, a "float board” produced mainly using hollow profiles.
  • Figure 12 shows, similarly to Figure 10, a "float board" made mainly using a tube.
  • Figure 13 is a cross section of a carrier-mold float produced using several tubes.
  • Each production line for concrete elements comprises: means B for pouring and compacting the concrete in the molds or batteries of the molds D1, D2, D4; a circuit H for the hardening of the concrete elements which have just been molded and means K for the evacuation of the hardened elements.
  • the production line comprises a chain of floats formed either by float boards A1 (fig. 1 to 6 and 10 to 12) or by mold support floats A2 (fig. 7 to 9 and 13) suitable for being moved in a liquid tank E, generally a water tank or possibly an oil tank; this tank E may or may not be equipped with heating means R for accelerated hardening.
  • a liquid tank E generally a water tank or possibly an oil tank; this tank E may or may not be equipped with heating means R for accelerated hardening.
  • Means C, F are provided for placing the concrete elements p, which have just been poured, on said floats A1, A2; these floats moving in the tank E transport the concrete elements p from the pouring means B to the discharge means K by passing the concrete elements through the hardening circuit H.
  • the floats move head to head head and / or side by side.
  • Means formed by handling means G (fig. 1, 3) or by the tank E itself (fig. 5 to 8) are provided to bring the floats A1, A2, to the concrete pouring means B.
  • the liquid tank E is arranged, according to the embodiments of Figures 1 and 3, such that the circuit followed by the floats A1 in this tank is an open circuit between the pouring means B and the discharge means K; the means for bringing the floats A1 back to the casting means B are constituted by handling means G such as overhead traveling cranes (fig. 1), cranes (fig. 3) or hoists.
  • handling means G such as overhead traveling cranes (fig. 1), cranes (fig. 3) or hoists.
  • the liquid tank is arranged so that the circuit followed by the floats A1, A2, is a looped or closed circuit passing through the pouring means B and the discharge means K, the means for bringing the floats back to the pouring means being constituted by a part of the tank E itself.
  • the circuit is looped in a vertical plane; the tank E has a single compartment and the paths made by the floats in opposite directions are superimposed.
  • the circuit is looped in a horizontal plane and the tank E has two adjacent compartments as clearly visible in FIG. 8.
  • the floats are constituted by "float boards" A1 (fig. 1 to 6 and 10 to 12).
  • These floatboards can be arranged in the form of an envelope 1 (made of sheet metal, polyester, etc.) having the shape of a parallelepiped, envelope made waterproof by welding, or, in particular, by the injection of a hydrophobic material. and light 2 (fig. 10); according to a variant, these "float boards” A1 are produced using one or more friction elements (fig. 11 and 12) such as tubes, conduits, hollow profiles, etc. linked to a plate 4 for supporting the products or elements, by assembly pieces 5.
  • the "float boards" A1 are provided on their ribs with guide pieces 6 (grooves, rollers, etc.) suitable for cooperating with rails 42 extending in the longitudinal direction of movement of the floats, on the walls of the tank E; buffer parts 7 are provided at the ends. of the boards A1 transverse to the direction of movement.
  • FIGS. 10 and 11 can be combined.
  • the floats are formed by mold support floats A2 (FIGS. 7 to 9 and 13); they include floating elements 3 and parts similar to those described above and designated by the same reference numerals 2, 5, 6 and 7; the floats A2 further comprise one or more working platforms 8, longitudinal or transverse; if necessary rollers 9 (fig. 8 and 9) can be provided below the flow ters A2.
  • These floats are provided with mold supports 10 mounted on the float frame by means of support pieces 11, in particular elastic studs so that it is possible to vibrate the support 10 for compacting the concrete contained in the molds, filtering the vibrations towards the float frame.
  • the vibration means V (FIG.
  • the volume of the floats A1, A2 is calculated, as a function of their weight and of the weight of the heaviest and lightest products to be manufactured, so as to ensure, during the immersion of the floats provided with the bare products, a force gravitational, obtained when the float is loaded with the heaviest products, the amplitude of which is equal to that of the ascending force obtained when the float is loaded with the lightest products; this ensures economical routing of the floats in the hardening circuit.
  • the guide rails or slides 42 of the floats are thus subjected to reduced forces, in particular in the parts of the tank where the floats are completely submerged.
  • Means such as, for example remote-controlled N-valves, can be provided on the floats, to modify the balance of these floats by introducing, inside the floats, a liquid, in particular the liquid of the tank; these means also make it possible to evacuate the liquid from the floats, for example by admitting compressed gas into the float, in order to expel the liquid.
  • the means B for pouring and compacting the concrete are conventional and include a distribution hopper, in particular provided with a drum 15 for adjusting the flow rate, with a finishing rule.
  • the demolding means and the means for placing the concrete elements p on the floats may include tilting means C arranged either to ensure a tilting at 180 ° (fig. 1 and 2) or a tilting at 90 ° (fig. 3 and 4).
  • the tilting means comprise a frame C1 suitable for tilting 180 ° around an axis / 3 (fig.1 and 2).
  • the frame C1 is provided with parts 17, in particular elastic, for supporting and fixing the molds D1.
  • Means, such as a jack, are provided for controlling the tilting of the frame C1 around the axis 13.
  • a device is, moreover, provided for clamping the "float boards" A1 against the molds D1; this device comprises bent lever arms 18, articulated at 18a and provided with two longitudinal contact pieces 19 suitable for pressing the boards A1 against the molds; the lever arms 18 are linked to a system of oscillating jacks 20 articulated on uprights 21 fixed on the frame C1; the joints 18a are also provided on the uprights 21.
  • the tilting means comprise a frame C2 (fig. 3 and 4) used in particular for the manufacture of elements of great length with cross section in the shape of a U or T.
  • This frame C2 comprises a frame 22, capable of rotating about an axis of rotation 23; two jacks 24 are provided to control the tilting of the frame C2.
  • a device is also provided for clamping the "float boards" A1 against the molds and for lowering these boards; this clamping and lowering device comprises a longitudinal support 25, guides 26 for the movements of this support 25, and two jacks 27 controlling these movements.
  • the "float board" A1 is clamped in the frame, so as to form part of the mold, as visible in FIG. 4.
  • the molds or mold batteries D1 (FIGS. 1 and 2) comprise one or more shells 28, made of sheet metal, an assembly frame 29, provided with plates 30 for attaching the vibrators 31 and shims 32 bearing on the studs 17.
  • the mold D2 is constituted by a bottom 33, a wall 34 and the "float board" A1 itself, placed parallel to the wall 34; in some cases, removable shells 35 are fixed on the wall 34 and / or on the "float board" A1.
  • the tilting frame C1, C2 fitted with the molds and the concrete distribution and smoothing device are mounted on a metal frame common 36, with all the hydraulic and electrical connections so as to form an independent module or "pouring-demolding head", which can be transported and mounted within a very short time.
  • the water tank E (fig. 1 to 9) is arranged to ensure sealing and good thermal insulation.
  • the heating means R of this tank, for the hardening circuit, differ according to the type of production lines.
  • the volume of the tank located can be heated above the liquid using conventional means such as steam, or spray with hot water.
  • heating means R of the tank liquid are provided, so as to ensure an increasing temperature of this liquid along the tank; these heating means can include a superheated water distribution installation provided with fittings, arranged along the tank, and provided with flow-adjusting solenoid valves, as a function of the desired temperature, in order to obtain the optimum curve for temperature.
  • the heating of the liquid in the tank can be ensured by other means such as steam, electrical resistances or any other suitable heating means.
  • hot water from natural sources or industrial recovery can be used. By using for the recovery of cooled water a network parallel to that of supply and placed in the same channel, one obtains an increased economic efficiency.
  • Means F are provided to ensure the descent, immersion and exit of the float boards A1, provided with bare products.
  • These means F comprise either mechanical elevators or float elevators 37, fitted with a sliding mechanism 38, guide pieces 39 for the float boards and two connectors, one 40 for filling the float elevator 37 with liquid and the other 41 for the evacuation of the liquid out of the float lift 37.
  • the filling of this float lift 37 with liquid causes it to descend into the tank E, while the evacuation of the liquid from this lift, causes it to rise in the liquid of the tank.
  • the means of displacement of the floats A1 or A2 are constituted by pushing devices 43, in particular formed by synchronized jacks, ensuring a step-by-step advance of all the floats in abutment against each other.
  • the floats are guided by the rails or slides 42 (see in particular fig. 2).
  • the means K (fig. 1 to 9) for evacuating the concrete elements out of the chain can be confused, in certain cases (fig. 1 and 3) with the means G for returning the "float boards" A1 to the pouring means.
  • These conventional means K are in particular provided with suction cup devices 44 (fig. 3, 5) or with electromagnet 45 (fig. 8, 9) for handling. steel reinforcements.
  • the production lines of the invention can be fixed or can be mounted in a hull 46 (fig. 9) of a boat in order to constitute a floating factory; this shell 46 is then equipped with a concrete buffer hopper, reinforcement workshops 47 for depositing materials 48 and other annexes.
  • the curing can be natural, or accelerated by means of heating.
  • the means B for pouring the concrete in the case of the production line in FIG. 5, are arranged to allow immediate release from the mold by placing the concrete elements directly on the floats A1.
  • the production lines according to the invention make it possible to produce good quality products, even if they are large, with reduced energy consumption. Indeed, the floats on which the concrete elements are placed during their hardening, are supported, by the liquid of the tank, over their entire surface; the deformations of the floats due to the load formed by the concrete elements are reduced during hardening which thus takes place under good conditions. This remains true, even if they are large elements such as electric poles whose length can reach ten meters or more.
  • the tank E can be thermally insulated in good condition, this tank communicating with the outside only at one or at its two ends, according to relatively small openings.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
EP79400494A 1978-07-17 1979-07-11 Chaîne pour la fabrication d'éléments en béton Expired EP0007852B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7821167 1978-07-17
FR7821167A FR2431360A1 (fr) 1978-07-17 1978-07-17 Procede et chaines a flotteurs pour la fabrication de produits en beton

Publications (2)

Publication Number Publication Date
EP0007852A1 EP0007852A1 (fr) 1980-02-06
EP0007852B1 true EP0007852B1 (fr) 1982-01-20

Family

ID=9210800

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79400494A Expired EP0007852B1 (fr) 1978-07-17 1979-07-11 Chaîne pour la fabrication d'éléments en béton

Country Status (8)

Country Link
US (1) US4269577A (pt)
EP (1) EP0007852B1 (pt)
JP (1) JPS5519597A (pt)
AU (1) AU522959B2 (pt)
BR (1) BR7904527A (pt)
DE (1) DE2961875D1 (pt)
ES (1) ES482512A1 (pt)
FR (1) FR2431360A1 (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2498976A1 (fr) * 1981-02-04 1982-08-06 Borcoman Mircea Methode, dispositifs, structures porteuses de moules et installations pour l'amelioration de l'efficacite des procedes pour la fabrication des produits en beton precontraint
JPH0397507A (ja) * 1989-09-11 1991-04-23 Kato Kogyo:Kk 台車型連続式製管機
RU2633239C1 (ru) 2013-10-31 2017-10-11 Джапан Тобакко Инк. Пероральная табачная композиция
US11981049B2 (en) 2018-10-31 2024-05-14 Rosenblatt Innovations Llc Geopolymer foam deposition and mixing system and apparatus
WO2020092740A1 (en) * 2018-10-31 2020-05-07 Rosenblatt Innovations Llc Geopolymer foam deposition and mixing system and apparatus
CN112321307B (zh) * 2020-11-09 2022-07-12 济南万瑞炭素有限责任公司 一种炭素阳极焙烧炉预制块保温垫制备设备及其使用方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE209411C (pt) *
US1306620A (en) * 1919-06-10 John c
DE477368C (de) * 1929-06-10 Carl Rein Foerdervorrichtung fuer Fliessarbeiten
DE376337C (de) * 1921-01-27 1923-05-26 Johan Van Item Verfahren und Ablegetisch zur Behandlung frisch gepresster oder gestampfter Schlackensteine
US2901808A (en) * 1953-06-18 1959-09-01 Keasbey & Mattison Company Apparatus for molding articles from material in slurry form
US2835016A (en) * 1953-11-06 1958-05-20 Jr George F Dixon Concrete mattress machine
DE2008457B2 (de) * 1970-02-24 1974-05-02 Remy Friedr Nfg Fertigungsanlage für die Herstellung von Platten, Trägern u.dgl. aus Stahlbeton
FR2256809B1 (pt) * 1973-10-23 1979-06-15 Borcoman Mircea
JPS5213968B2 (pt) * 1974-06-12 1977-04-18

Also Published As

Publication number Publication date
FR2431360B1 (pt) 1982-11-05
DE2961875D1 (en) 1982-03-04
AU4893679A (en) 1980-01-24
ES482512A1 (es) 1980-04-01
FR2431360A1 (fr) 1980-02-15
BR7904527A (pt) 1980-03-25
AU522959B2 (en) 1982-07-01
EP0007852A1 (fr) 1980-02-06
US4269577A (en) 1981-05-26
JPS5519597A (en) 1980-02-12

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