WO1998057786A1 - Installation pour couler des tuyaux, notamment en beton - Google Patents

Installation pour couler des tuyaux, notamment en beton Download PDF

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Publication number
WO1998057786A1
WO1998057786A1 PCT/DK1997/000258 DK9700258W WO9857786A1 WO 1998057786 A1 WO1998057786 A1 WO 1998057786A1 DK 9700258 W DK9700258 W DK 9700258W WO 9857786 A1 WO9857786 A1 WO 9857786A1
Authority
WO
WIPO (PCT)
Prior art keywords
frame
moulds
plant
mould
outer moulds
Prior art date
Application number
PCT/DK1997/000258
Other languages
English (en)
Inventor
Johannes Hvidegaard
Original Assignee
Pedershaab 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 Pedershaab A/S filed Critical Pedershaab A/S
Priority to AU33357/97A priority Critical patent/AU3335797A/en
Priority to PCT/DK1997/000258 priority patent/WO1998057786A1/fr
Publication of WO1998057786A1 publication Critical patent/WO1998057786A1/fr

Links

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
    • B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
    • B28B17/009—Changing the forming elements, e.g. exchanging moulds, dies
    • 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
    • B28B21/00—Methods or machines specially adapted for the production of tubular articles
    • B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
    • B28B21/04—Methods or machines specially adapted for the production of tubular articles by casting into moulds by simple casting, the material being neither positively compacted nor forcibly fed
    • 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
    • B28B21/00—Methods or machines specially adapted for the production of tubular articles
    • B28B21/76—Moulds
    • B28B21/82—Moulds built-up from several parts; Multiple moulds; Moulds with adjustable parts

Definitions

  • the present invention relates to a plant for casting pipes comprising at least two stationary or vertically displaceable mould cores, and at least two outer moulds each of which is provided with a bottom ring to form the lower extremity portion of the pipes and to support it relative to the outer mould, and wherein the plant further comprises a support device for supporting and posi- tioning each outer mould with its associated bottom ring in its casting position substantially concentrically with an associated mould core.
  • Such plants are known today in countless embodiments.
  • One example of this is known from WO Al 92 18 309 that features a plant with a vertically displaceable core and an outer mould with an associated bottom ring which may be removed as an assembly unit following casting of a pipe in the mould by pulling the core completely out of the outer mould, following which the outer mould with the cast pipe can be moved as a unit.
  • the plant thereby further comprises a frame provided with coupling means for releasable mounting and mutual attachment of at least two outer moulds adjacently each other, it is made possible to alternate between simultaneous production of pipes of the same or of different types and dimensions.
  • the plant thereby further comprises a frame provided with coupling means for releasable mounting and mutual attachment of at least two outer moulds adjacently each other, it is made possible to alternate between simultaneous production of pipes of the same or of different types and dimensions.
  • the plant thereby further comprises a frame provided with coupling means for releasable mounting and mutual attachment of at least two outer moulds adjacently each other, it is made possible to alternate between simultaneous production of pipes of the same or of different types and dimensions.
  • the frame is configured with a view to arrangement and resting on the support device. Thereby the frame will be positioned between the support device and the outer moulds arranged in the frame whereby only the frame is to have a strength that ensures fixation of the two outer moulds relative to each other.
  • the frame may advantageously be provided with at least two substantially identical sets of coupling means for receiving and securing each their outer mould, and the plant comprises outer moulds which each has a set of identical coupling means that are complementary relative to the identical set of coupling means of the frame.
  • the plant comprises outer moulds which each has a set of identical coupling means that are complementary relative to the identical set of coupling means of the frame.
  • Each of the identical sets of coupling means of the frame may advantageously comprise four identical sets of coupling devices that are preferably arranged in a rectangu- lar or square pattern so as to allow a high degree of freedom with regard to the orientation of the individual outer moulds in the frame.
  • the frame is further provided with two lifting devices with a view to lifting and transporting the frame with outer moulds mounted thereon, and if the outer moulds configured for mounting in the frame are so provided that the centres of gravity of the empty as well as the filled outer moulds are situated vertically below a straight line that extends through the lifting devices, it follows that, irrespective of the type of mould arranged in the frame, lifting of the frame by means of e.g. a crane with two parallel lifting devices will bring about stable positioning of the centre of gravity of the frame with as- sociated outer moulds whereby imbalance during lifting is avoided.
  • the coupling means of the frame consist of simple conical supports for supportive reception of the complementary coupling means on the outer moulds and thus by the outer moulds, and the complementary coupling means on the outer moulds are arranged completely above the centres of gravity for the filled as well as the empty outer moulds and preferably at the upper end of the outer mould whereby the major part of each outer mould extends there below following mounting in the frame.
  • each outer mould is so arranged that two adjacent outer moulds that are mounted in the frame and their associated bottom rings extend equally below the frame. Thereby both outer moulds will, following lifting, be put down again, hit the support simultaneously thereby eliminating the risk of vibrations in the moulds in this process.
  • the support device may consist of a stationary framework configured for supporting only one frame, but alternatively it may also be in the form of a movable or rotatable device with a view to supporting a first and a second frame next to each other and in one and the same plane, and the support device comprises means for alternately moving the first and the second frames with outer moulds mounted therein to their casting positions.
  • the support device may be in the form of a carousel whereby it may, by rotation, alternately swing the first and the second frames into their casting positions.
  • another set of moulds may expediently be arranged in the casting position whereby the remaining capacity of the plant may be utilised to a maxi- mum.
  • the plant may be used in particular for the casting of pipes with a very large diameter, in which it is practically possible to fill only one pipe at a time.
  • the plant further comprises outer moulds which have coupling means intended for arrangement thereof directly on the support device.
  • the support device is conveniently adjustable with a view to receiving and securing frames and/or outer moulds of different sizes. As it is, this will mean that it is possible to provide an even more flexible adjustment of the equipment for the casting of different pipe types .
  • Figure 1 illustrates a plant according to the present invention, seen from above.
  • Figure 2 is a sectional view of the plant shown in Figure 1 along the section A-A in Figure 1.
  • Figure 3 is a front view of the support device shown in Figure 1 with the frame and two outer moulds mounted thereon.
  • Figure 4 shows the arrangement shown in Figure 3, seen from above.
  • Figure 5 is a perspective view illustrating the frame according to Figures 3 and 4 in which the outer moulds are mounted.
  • Figure 6 illustrates the frame according to Figures 3 and 4 with outer moulds mounted thereon and wherein the frame is lifted off the support device.
  • Figure 7 is a top plan view of the support device shown in Figures 3 and 4, but without the frame and with only one outer mould.
  • Figure 8 illustrates the outer mould according to Figure 7 lifted off the support device.
  • Figure 9 is a lateral view of a plant according to the invention and in principle corresponding to the plant shown in Figure 2 except for an alternative configuration of the support device.
  • Figure 10 illustrates the plant shown in Figure 10, seen from above .
  • Figure 1 is a top plan view of a plant for casting concrete pipes.
  • the plant comprises a storage silo 1 for ready-mixed concrete and two conveyors 2,3 for transporting concrete from the storage silo 1 to two casting sta- tions 4,5, comprising the parts necessary for transporting concrete from the conveyors 2,3 to the concrete pipe moulds, such as feeding funnels, and optionally pressing tools for pressing in loose top rings with a view to the final shaping of tapered ends on the cast concrete pipes located in the concrete moulds.
  • the storage silo 1 is arranged to be stationary relative to the foundation of the machinery, and the two conveyors 2,3 with associated casting stations 4,5 are displaceably arranged on the guides 6,7 whereby the casting stations may be displaced forwards and backwards between the casting position shown in the figure in which the casting stations 4,5 extend across the pipe moulds and a retracted position in which the space above the pipe moulds is cleared.
  • a framework 8 is arranged for receiving and positioning one or two outer moulds for the casting process .
  • the invention is useful in connection with plants of other types than the one shown herein, but in the preferred embodiment, as shown, the plant is automated as regards processes concerning the supply of concrete to the moulds, positioning of the moulds at the casting sta- tions, and casting of the individual pipes with subsequent finishing of the tapering ends by means of either top rings secured to the inside of the outer moulds, as is known from e.g. WO Al 92 18 309, or loose top rings inserted into the mould following casting of the pipe and subsequently pressed down into the outer mould to form the tapering end.
  • the present invention is particularly advantageous in connection with plants in which the outer moulds with the cast pipes are removed by means of a transportation device intended therefor and are subse- quently arranged at a location where the outer mould is released from the bottom ring and lifted upwards whereby the outer mould is lifted off the cast pipe which subse ⁇ quently rests firmly on the bottom ring.
  • the outer mould may subsequently be used in a renewed casting process whereby the number of outer moulds in a production process may be reduced considerably.
  • FIG 2 the plant shown in Figure 1 is illustrated, only it is seen in a sectional, lateral view along line A-A in Figure 1.
  • the plant has a vertically displaceable lifting device 9 on which an inner core may be mounted which may be displaced upwards and into the outer mould and the bottom ring thereof during the casting process.
  • a frame is located in which at least two outer moulds may be arranged which may be firmly secured relative to each other by means of the frame 10.
  • the framework 8 consists of a number of stationary columns 15, 15a, 16, 16a and a beam 17 that extends between two columns 15a, 16a and forms a guide for a displaceable support device 18 which may be adjusted with a view to supporting frames or outer moulds with different dimensions.
  • a number of conical positioning pins are arranged that serve as guides for e.g. the frame 10 shown in Figures 3 and 4, in that the positioning pins support the frame 10 by insertion of the positioning pins into conical apertures intended therefor in the frame 10.
  • each outer mould 11,12 is provided with respective flanges 19,20 which have substantially identical geometries at their periphery. Moreover, the flanges 19,20 have conical apertures for receiving conical pins 21 on the frame 10 whereby the outer moulds 11,12 may be lo- cated on the frame 10 and rest thereon in a stable manner .
  • FIG. 5 shows that in the embodiment shown the frame has eight conical pins 21 and wherein said conical pins 21 are arranged in two groups each of which comprises four pins, and wherein the pins in each group are arranged at the corners of a rectangle.
  • the frame 10 is provided with a number of lifting eyes 22 for attachment of a lifting device. Thereby the frame 10 with the outer moulds mounted therein may be lifted without the frame 10 being tilted in the process.
  • Figure 6 illustrates a frame 10 with outer moulds 11,12 mounted therein, said frame 10 with outer moulds 11,12 being lifted partially clear of a pair of cast pipes 23,24.
  • the frame 10 is lifted by a crane with two parallel extending lifting hooks 25,26 which are secured to the lifting eyes 22 on the frame 10 by means of a pair of lifting straps.
  • the frame 10 according to the invention thus allows alternating casting of different pipe geometries, simply by changing the outer moulds in the frame 10.
  • pipes of different or like geometries may optionally be produced in the same casting process, and due to the fact that the outer moulds 11,12 rest substantially exclusively on the frame 10, the outer moulds 11,12 may be changed very quickly.
  • the plant according to the preferred embodiment may be used for casting pipes with very large cross sectional dimensions where it is not practically possible to cast two pipes simultaneously.
  • the plant further comprises a number of outer moulds 27 which are each provided, at their upper extremities, with a flange 28, as shown in Figures 7 and 8 thus allowing that the outer mould 27 alone may be arranged directly on the framework 8 without interposed frame.
  • the frame 10 and the outer mould 27 is provided with corresponding conical apertures whereby the outer mould 27 may be arranged on the same conical pins as the frame.
  • the displaceable support 18 it is possible to vary between use and direct support of frames 10 and large outer moulds 27, or between frames and outer moulds of different dimensions.
  • Figure 8 illustrates in particular the outer mould according to Figure 7 which is lifted in lifting eyes and lifting straps intended therefor and wherein it is shown that the outer mould is lifted partially clear of a cast pipe 28 following arrangement of the latter on a bottom ring 29 on a support.
  • the plant shown in Figures 1 and 2 will provide an extremely high degree of flexibility in the casting of concrete pipes with a view to expedient change of outer moulds, and adaptation of the production with regard to pipe geometries and dimensions, in particular with regard to the pipe length, but in particular with a view to the cross sectional geometry.
  • the frame 10 according to i.a. Figures 1 and 2 is further replaced by a device for displacing frames 10 below and away from the casting station, respectively.
  • a carousel 30 is arranged at the casting station for positioning and supporting two frames 10,10a, each of which may be provided with outer moulds.
  • the carousel 30 is configured substan ⁇ tially in the form of two frameworks of the type shown in Figures 3 and 4 which are secured to each other, but which are rotatably secured about a vertical axis 31, and wherein a set of wheels 32 is also mounted at least at the columns that are situated most distantly from the vertical axis of rotation 31.
  • two frames 10,10a may be located alternately be ⁇ low the casting station and away therefrom in a position in which the frame 10a, as shown in Figure 9, may be lifted clear of the carousel 30 and to a place where the cast pipe is configured in the same manner as shown in Figure 6.
  • the plant capacity is utilised to a maximum since it is hereby ensured that a frame 10 is al- ways present below the casting position, thus reducing the resting periods of the plant considerably.
  • the frames may be configured to receive a larger number of outer moulds than the two shown in the figure.
  • the frames may have different dimensions with a view to receiving outer moulds of other cross sections than those shown herein.
  • the carousel shown in Figures 9 and 10 it may also be replaced by a device which is displaceable in the parallel direction which may also cause frames or outer moulds to be moved to a position below and away from the casting station, respectively.
  • outer moulds only moulds for casting pipes with substantially circular cross sections are shown herein.
  • the present invention also lends itself for use in connection with other pipes with other geometries, such as egg-shaped, oval, square, etc.
  • the outer moulds have such configurations that, when lifted in a frame, their shared point of gravity will be situated vertically below the straight line which may be drawn between the lifting hooks.
  • frames for receiving more than two outer moulds as shown in the drawings.
  • the frames for receiving more than two outer moulds be so configured that the individual forms are not positioned along a straight line as shown in the figures, but optionally along the periphery of a circle or at the corners of a square.
  • a plurality of storage containers with associated conveyors and casting stations may advantageously be provided whereby a high degree of flexibility is obtained as regards the con ⁇ struction and dimensioning of the plant to a given capac- ity.
  • frames with moulds that are not arranged along a circle advantageously allows for use of lifting devices which have more than two and preferably three or four parallel-extending lifting hooks whereby it is ensured to the highest degree possible that imbalance in the frame does not occur during lifting.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

L'invention concerne une installation permettant de couler des tuyaux, qui comprend au moins deux moules internes fixes ou pouvant se déplacer dans le sens vertical, et au moins deux moules externes comportant un collier inférieur, qui permet de former l'extrémité inférieure des tuyaux et de la supporter par rapport au moule externe. L'installation comprend également un dispositif support, qui supporte les moules externes avec leur collier inférieur et les positionne dans une position de coulage sensiblement concentrique par rapport aux moules internes associés, ainsi qu'un châssis comportant un système d'accouplement qui permet de monter libérables au moins deux moules externes adjacents et de les fixer l'un à l'autre. On obtient ainsi un système très souple et une utilisation efficace de la capacité de l'installation.
PCT/DK1997/000258 1997-06-16 1997-06-16 Installation pour couler des tuyaux, notamment en beton WO1998057786A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU33357/97A AU3335797A (en) 1997-06-16 1997-06-16 A plant for casting pipes, in particular of concrete
PCT/DK1997/000258 WO1998057786A1 (fr) 1997-06-16 1997-06-16 Installation pour couler des tuyaux, notamment en beton

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DK1997/000258 WO1998057786A1 (fr) 1997-06-16 1997-06-16 Installation pour couler des tuyaux, notamment en beton

Publications (1)

Publication Number Publication Date
WO1998057786A1 true WO1998057786A1 (fr) 1998-12-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK1997/000258 WO1998057786A1 (fr) 1997-06-16 1997-06-16 Installation pour couler des tuyaux, notamment en beton

Country Status (2)

Country Link
AU (1) AU3335797A (fr)
WO (1) WO1998057786A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10013824C1 (de) * 2000-03-21 2001-09-06 Johann Schluesselbauer Verfahren und Anlage zur automatisierten Herstellung von Hohlkörpern aus Mischgut
CN111319127A (zh) * 2018-12-14 2020-06-23 比亚迪股份有限公司 用于制造轨道梁的模具***
CN111590749A (zh) * 2020-05-27 2020-08-28 浙江汇博水泥制品有限公司 一种钢筋混凝土管的立式振捣成型工艺及其成型设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH174023A (de) * 1933-11-06 1934-12-31 Wallimann Isidor Verfahren und Vorrichtung zur Herstellung von Röhren, Rohrstücken, Masten, Platten und Balken aus Zement oder Beton mit oder ohne Armierung, mittelst achsialen hydraulischen Druckes bei gleichzeitiger Anwendung eines Schüttelmechanismus.
US2926411A (en) * 1957-08-19 1960-03-01 Steiro Harry Machine for making concrete pipes
US3119165A (en) * 1961-03-20 1964-01-28 Boise Cascade Corp Automatic concrete pipe molding machine for belled pipe
CH388166A (de) * 1960-01-15 1965-02-15 Verken Ab Otto Vorrichtung zur gleichzeitigen Herstellung einer Anzahl Betonrohre

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH174023A (de) * 1933-11-06 1934-12-31 Wallimann Isidor Verfahren und Vorrichtung zur Herstellung von Röhren, Rohrstücken, Masten, Platten und Balken aus Zement oder Beton mit oder ohne Armierung, mittelst achsialen hydraulischen Druckes bei gleichzeitiger Anwendung eines Schüttelmechanismus.
US2926411A (en) * 1957-08-19 1960-03-01 Steiro Harry Machine for making concrete pipes
CH388166A (de) * 1960-01-15 1965-02-15 Verken Ab Otto Vorrichtung zur gleichzeitigen Herstellung einer Anzahl Betonrohre
US3119165A (en) * 1961-03-20 1964-01-28 Boise Cascade Corp Automatic concrete pipe molding machine for belled pipe

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10013824C1 (de) * 2000-03-21 2001-09-06 Johann Schluesselbauer Verfahren und Anlage zur automatisierten Herstellung von Hohlkörpern aus Mischgut
EP1136213A2 (fr) * 2000-03-21 2001-09-26 Schlüsselbauer, Johann Procédé et dispositif de fabrication automatique de corps creux à partir d'un mélange
EP1136213A3 (fr) * 2000-03-21 2003-06-04 Schlüsselbauer, Johann Procédé et dispositif de fabrication automatique de corps creux à partir d'un mélange
CN111319127A (zh) * 2018-12-14 2020-06-23 比亚迪股份有限公司 用于制造轨道梁的模具***
CN111590749A (zh) * 2020-05-27 2020-08-28 浙江汇博水泥制品有限公司 一种钢筋混凝土管的立式振捣成型工艺及其成型设备
CN111590749B (zh) * 2020-05-27 2021-07-23 浙江汇博水泥制品有限公司 一种钢筋混凝土管的立式振捣成型工艺及其成型设备

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Publication number Publication date
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