EP0285541A1 - Improvements in machines for the continuous manufacture of concrete elements - Google Patents

Improvements in machines for the continuous manufacture of concrete elements Download PDF

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Publication number
EP0285541A1
EP0285541A1 EP88500034A EP88500034A EP0285541A1 EP 0285541 A1 EP0285541 A1 EP 0285541A1 EP 88500034 A EP88500034 A EP 88500034A EP 88500034 A EP88500034 A EP 88500034A EP 0285541 A1 EP0285541 A1 EP 0285541A1
Authority
EP
European Patent Office
Prior art keywords
mould
machines
mentioned
concrete
concrete elements
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Withdrawn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
EP88500034A
Other languages
German (de)
English (en)
French (fr)
Inventor
Victor Costa Rocarol
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.)
ECHT SA
Original Assignee
ECHT SA
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
Priority claimed from ES8701129A external-priority patent/ES2006131A6/es
Priority claimed from ES8800862A external-priority patent/ES2014040A6/es
Application filed by ECHT SA filed Critical ECHT SA
Publication of EP0285541A1 publication Critical patent/EP0285541A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
    • B28B1/084—Producing shaped prefabricated articles from the material by vibrating or jolting the vibrating moulds or cores being moved horizontally for making strands of moulded articles
    • 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
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/29—Producing shaped prefabricated articles from the material by profiling or strickling the material in open moulds or on moulding surfaces

Definitions

  • This invention refers to some improvements in the ma­chines for the continuous manufacture of concrete elements.
  • Machines of this type have been known for many years now, which are made up of a frame fitted with wheels which slides along some rails on a track, on which some tensed wires or armatures have previously been arranged, and on which the continuous pretensed reinforced concrete ele­ments shall be made, such as beams, on whose frame the following are fitted: its haulage means; a concrete sup­plying hopper; and a mould train, the first of which re­ceives the concrete which is put through an initial mould­ing, the concrete then passing to a second finishing mould from which the fully moulded element comes out, whose mould train circulates on the tensed wires on the track and which have to make up the armature of the beams.
  • the applying entity is already the owner of various patents of this type of machine, particularly mentioning the Spanish introductory patent n o 517.451, according to which some rotating blades were added to these machines in the receiver mould, whose purpose was to compact the con­crete and drive it towards the finishing mould, also add­ing other accessories such as a trap in the front part of the machine which in turn acted as a guide for the wires making up the armature of the elements to be manufactured.
  • both the receiver mould and the compacting blades are fitted to the frame on the machine in a dismountable manner, with these blades and the finish­ing mould being fitted with means for their height adjust­ment.
  • the mentioned moulds include their bearing sections on the track made up of re­changeable parts which are easily replaced in the event of wear.
  • Another of the advantages of the new machine lies in offering the vibrators which act on the receiver mould cooling based on an external oil circuit which allows them to operate better on eliminating turbulences inside.
  • These vibrators have been made up by means of a mono-block ec­centric shaft which allows normal roller bearings to be used with which they can work at high revolutions, the ends of the mentioned shaft including the assembly of ec­centrics so as to graduate the eccentricity of the same.
  • Each vibrator shall preferably include an oil tank so as to individualize its continuous oil bath external cooling circuit.
  • the receiver mould is divided into two side parts which are joined by means of an elastic tie-rod, and a vibrator corresponds to each part.
  • the men­tioned mould is divided also horizontally in accordance with two superimposed coplanar halves joined together by means of an elastic joint.
  • the drive means of the front trap are also improved, as well as the guide frame for the armature cables, whose means are purely mechanical and the height graduation for the cables and their lateral graduation are made possible.
  • Another characteristic of this new machine consists of fitting the hopper with an articulated trap in the rear part of its mouth which allows the mentioned mouth to be opened more or less so as to make way for the appropriate concrete to the compacting blades, while by the front part of this mouth, a series of blades (one per receiver mould department) has been envisaged to prevent the passage of concrete towards the front part of the mentioned mould, whose blades are fitted turning on a transversal shaft so as to be able to overcome, with the ascending movement, the obstacle represented by the anchoring limiter of the wires existing at the end of the track along which the ma­chine runs.
  • first means designed to eliminate the lower flashes in the concrete elements and second means for obtaining an even finish in the upper part of the men­tioned elements.
  • the first means may be driven with a common or individual control for each core of the finish­ing mould, and are made up of vertical knives pushed down­wards elastically and which may be raised so as to adopt a passive position by means of the cam control.
  • the knife and its spring shall preferably be fitted in a housing en­visaged in a rear prolongation of each core.
  • the second means are made up of a section arranged between every two cores and between the same, some elastic sections facilita­ting their vibration are arranged longitudinally.
  • This machine allows working with almost dry concrete which represents an important saving in cement and a high resistance in the concrete.
  • the illustrated ma­chine includes a main frame 1 fitted with wheels 2 for circulating along the rails 3 of the track where the wires shall be tensed and which will form the armature of the beams which shall be made in continuous manufacture paral­lelly by the mentioned machine.
  • the height of the mentioned wheels can be adjusted due to the fitting in the centre part of a support 4, which is hinged by one end to the frame 1, being crossed at the other end by a vertical screw 5 with a nut and counternut which is fixed in the upper part to the frame.
  • the hopper 8 includes in the rear part of its output mouth an articulated trap 11, which has on its external side the articulation of one or two rods 12 which string up to some transversal shafts which join respective couples of appendices 13 parallelly locked together to the hopper 8.
  • shaft 15 is fitted transversally, which includes two concrete-compacting lock­ed rotating blades 16 in each longitudinal department 17 into which the mentioned mould 7 is divided, each depart­ment corresponding to one beam or similar element to be manufactured.
  • the elastic blocks of mould 7 are shown, with which the latter is sustained in the front and in the back on some tie-rods 19 and 20 in a convenient manner, which join the two parts of the mould and which are detachably fixed to corresponding inverted T-section cross beams locked to the frame 1 so as to be able to dismount the mould from the frame 1.
  • the mould 7 is also divided in the illustrated example into two side parts, joined by means of a tie-rod made up of an elastic sheet 22, on which two flatbars 23 are sup­ported, one for each part of the mould, the unit being secured with the corresponding screws, with each one of the parts of the mentioned mould 7 including a vibrator 24 on its front part.
  • the receiver mould is horizontally divided in accordance with two superimposed coplanar halves 7a and 7b which are joined together with an elastic joint made up of two rubber sections 71 and 72 forming a tongue jointing, with the lower half 7a of the mould having the side notches 29a where the shaft 15 and compacting blades are fitted in a dismountable manner, whose shaft is clamped between two detachable parts, one upper part 30a and one lower part 30 ⁇ a.
  • the vibrators include an external cooling circuit made up of three conduits 25 communicating with an oil tank 26 secured in the upper part to a vertical plate 27 locked to the frame 1 in front of the hopper 8, with the mentioned plate also having the motors 24 ⁇ and transmissions which make the vibrators 24 work.
  • the oil rises through the central conduit 25 and descends through the side ones.
  • the vibrators 24 (figure 7) have an eccentric shaft 73 made up of a single part which in the centre has a hollow 74 covered with a sheet 75, and whose eccentricity is graduated by acting of eccentrics 76 and 77 envisaged at the ends of the mentioned shaft 73, which rotates string­ed up on normal roller bearings 78 and 79.
  • Each vibrator 24 communicates with an upper oil tank 26a by means of three conduits 25a so as to make up an in­dividualized cooling circuit for each vibrator, with perma­nent lubrication, the oil rising through the central con­duit until coming out through an axial tube 80 in the tank and falling on the oil contained in the same, which re­turns to the vibrator through the side conduits 25a coup­led to the bottom of the tank.
  • the mould 7 is completed with some substantially rect­angular section replaceable sections 28 detachably and longitudinally secured in the lower part of the rear zone of each one of the walls of the different departments into which the mentioned mould is divided, with the compacting blades 16 and their shaft 15 also being dismountable, which is mounted by being fitted between some lateral notches 29 in the mould 7 (see figure 4), where it is clamped between two detachable parts 30 and 30 ⁇ , the ends of the mentioned shaft 15 also being detachably secured in the journals 31 ⁇ of the shafts 31 of the wheels trans­mitting the rotation movement.
  • Each one of these two shafts 31 string up a sliding part (not shown in the drawings) in some notches in the sides of the frame 1 and whose height can be adjusted, which is achieved with the manipulation of a threaded nut 32 in the upper end of a stud 33 which, vertically secured to the upper part of the aforementioned sliding part, fits to another part 34 secured detachably by means of screws to the sides of the frame 1 together with another part 35 fac­ing the previous one and which partially fits in the notch­es in the mentioned sides.
  • the working height of the compacting blades 16 can be adjusted.
  • finishing mould 9 it is fitted un­der a frame 36 fitted with some couples of wheels 37 on its sides which, by means of their circulating along some rails 38 locked to the frame 1, allow the access to the most hid­den parts of the finishing mould for the latter to be clean­ed or repaired.
  • the unit is immobilized by means of six threaded studs 39 joined to both sides of the frame 1, four located be­neath the rails 38, being fitted vertically and secured by means of nuts in the notches of some horizontal plates 40 fixed to the frame 36, and two located laterally opposite the mentioned frame, being fitted horizontally and secured in the notches in other plates locked vertically in the front part of the frame 36, whose two studs act as tensors in the coupling between the two moulds.
  • the finishing mould 9 is fitted against the vibrating mould 7, with an elastic joint 41 fitted peripherally around the finishing mould being ar­ranged between both.
  • the mentioned mould also includes some supports made up by rectangular plates 42 (figure 3) with some couples of vertical flanges for the assembly of the wheels 37, whose plates are secured to the frame 36 by means of a series of screws, some longer ones 43 with a counternut included so as to determine the distance from the support to the frame, and others 44 so as to ensure the position, with the height of the finishing mould being adjusted in this way.
  • a series of inverted U-section parts are arranged on a lower plane and in an elastic assembly, which, as knives, eliminate the flashes produced between the manufactured V concrete beams; these parts 45 are secured to some vertical rods 46 with housing spring 47 which distances them from some flatbars 48 lock­ed to a cross beam 49, in whose flatbars, the mentioned rods are fitted, with some transversal pins going through their protruding ends in the upper part so as to prevent uncoupling.
  • the longitudinal beam 49 is fitted to the frame 36 through some supports 50 locked to the mentioned frame and which in their lower part have a horizontal pro­longation 50 ⁇ on which a cam 51 is supported, which has on its shaft the suspended assembly of an arm 52 joined to the longitudinal beam 49, the rising or lowering of which is produced with the driving of a handle 53 secured to the cam 51, with which the parts 45 are prevented from rubbing against the ground when the machine is not working.
  • some comple­ments 81 are coupled in prolongation with a front cover 82, forming a housing where the knives 45 have been fitted ver­tically, secured in the lower end of the rod 46 with the housing spring 47 which pushes them downwards.
  • the rods 46 protrude from the upper part of the housing 81 and to their end a cam 83 is coupled with a grip 84 for the indivi­dual operation of each knife, so that on turning the cam upwards, it is raised to rod 46 and with it, knife 45.
  • the drum 6, where the machine haulage cable is wound turns through the action transmitted to it by a reducing housing 54, which, the same as reducing housing 55, which through a series of transmissions makes the shaft 15 of the compact­ing blades 16 turn, receive the action of some motors 56 and 57 arranged on both sides of the frame 1, and which have some external flywheels 58 and 59 for regulating the diameter and corresponding movement speed of the respective transmitting belts.
  • a servomotor 90 With reference 91, the possibility of coupling a crank for the manual opera­tion of the speed variator is indicated.
  • This speed indicator can also be of the electronic type, with which the mechanism 89 would then be eliminated, with both the motor-driven variator and the electronic variator being driven from the electrical control panel of the machine.
  • the speed variator 89 can include pulleys and belts or a suitable transmitting mechanism.
  • the cable guiding trap 60 is situated, which is mechanically driven through three articulated levers, one of which 61 is joined to the mentioned trap at one of its ends, its other end being joined to another lever 62, which ends in a journal joined to the frame 1, with a third lever 63 in inverted L-section being locked to this journal for driving the unit.
  • a rod 64 joined to frame 1 underneath the lever 63 locks its position when the trap 60 is raised, this trap having the detachable attachment of a series of flatbars 65 with the corresponding notches for the guiding of the cables.
  • This attachment is carried out by means of screws which pass through horizontal slots in the flatbars 65, which allows the same to be adjusted laterally.
  • a series of blades 67 with notches for the passage of the cables are fitted on a transversal rotating shaft 68 located by the mouth of the hopper 8 in its front part, with this shaft 68 having some flatbars 69 locked at its ends, which on striking through the upper part of some stopping dogs 70 of the frame 1 prevent the rotation to­wards the front part of the machine, at the same time as the passage of concrete to that zone is prevented, and in turn allowing, with the backward elevation, the passage of the anchoring limiter of the wires existing at the end of the track.
  • the mentioned device shall be preferably fitted in the rear part of the machine, after the flash-removing knives, and may be driven manually or by means of a programmer instal­led in the machine or out of it.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
EP88500034A 1987-03-30 1988-03-28 Improvements in machines for the continuous manufacture of concrete elements Withdrawn EP0285541A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ES8701129 1987-03-30
ES8701129A ES2006131A6 (es) 1987-03-30 1987-03-30 Perfeccionamientos en las maquinas para la fabricacion en continuo de piezas de hormigon
ES8800862A ES2014040A6 (es) 1988-02-25 1988-02-25 Mejoras introducidas en el objeto de la patente principal numero 8701129 por "perfeccionamientos en las maquinas para la fabricacion en continuo de piezas de hormigon.
ES8800862 1988-02-25

Publications (1)

Publication Number Publication Date
EP0285541A1 true EP0285541A1 (en) 1988-10-05

Family

ID=26154336

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88500034A Withdrawn EP0285541A1 (en) 1987-03-30 1988-03-28 Improvements in machines for the continuous manufacture of concrete elements

Country Status (2)

Country Link
EP (1) EP0285541A1 (pt)
PT (1) PT87114A (pt)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2987770A1 (fr) * 2012-03-07 2013-09-13 Cci Procede de fabrication d'elements constitutifs de bancs de moulage de poutrelles precontraintes
CN112809879A (zh) * 2021-02-19 2021-05-18 滁州学院 一种保温混凝土墙板的生产工艺
CN112895117A (zh) * 2021-02-19 2021-06-04 滁州学院 一种降噪混凝土墙板的加工方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1312705A (fr) * 1961-01-13 1962-12-21 Max Roth K G Compacteur continu déplaçable pour la fabrication de poutres ou analogues en béton précontraint
US3947167A (en) * 1972-11-07 1976-03-30 Rochfort William P K Vibrating paddle assembly for a slip former
FR2497716A1 (en) * 1981-01-13 1982-07-16 Guiraud Freres Sa Etu Applic C Machine extruding concrete beams - uses trailing rails to form sides and has sprung vertically movable blades which follow floor profile

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1312705A (fr) * 1961-01-13 1962-12-21 Max Roth K G Compacteur continu déplaçable pour la fabrication de poutres ou analogues en béton précontraint
US3947167A (en) * 1972-11-07 1976-03-30 Rochfort William P K Vibrating paddle assembly for a slip former
FR2497716A1 (en) * 1981-01-13 1982-07-16 Guiraud Freres Sa Etu Applic C Machine extruding concrete beams - uses trailing rails to form sides and has sprung vertically movable blades which follow floor profile

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2987770A1 (fr) * 2012-03-07 2013-09-13 Cci Procede de fabrication d'elements constitutifs de bancs de moulage de poutrelles precontraintes
CN112809879A (zh) * 2021-02-19 2021-05-18 滁州学院 一种保温混凝土墙板的生产工艺
CN112895117A (zh) * 2021-02-19 2021-06-04 滁州学院 一种降噪混凝土墙板的加工方法

Also Published As

Publication number Publication date
PT87114A (pt) 1989-03-30

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