EP1491306A2 - Maschine zum kontinuierlichen Herstellen von Erzeugnissen aus Spannbeton oder Stahlbeton - Google Patents

Maschine zum kontinuierlichen Herstellen von Erzeugnissen aus Spannbeton oder Stahlbeton Download PDF

Info

Publication number
EP1491306A2
EP1491306A2 EP04380094A EP04380094A EP1491306A2 EP 1491306 A2 EP1491306 A2 EP 1491306A2 EP 04380094 A EP04380094 A EP 04380094A EP 04380094 A EP04380094 A EP 04380094A EP 1491306 A2 EP1491306 A2 EP 1491306A2
Authority
EP
European Patent Office
Prior art keywords
mold
machines
chassis
prestressed
reinforced concrete
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Withdrawn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
EP04380094A
Other languages
English (en)
French (fr)
Other versions
EP1491306A3 (de
Inventor
Joan Parareda Prats
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.)
Prensoland SA
Original Assignee
Prensoland 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
Application filed by Prensoland SA filed Critical Prensoland SA
Publication of EP1491306A2 publication Critical patent/EP1491306A2/de
Publication of EP1491306A3 publication Critical patent/EP1491306A3/de
Withdrawn legal-status Critical Current

Links

Images

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
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
    • B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
    • B28B23/06—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed for the production of elongated 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
    • B28B1/08—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

Definitions

  • This invention relates to improvements made to machines for the continuous production of concrete parts, of the type comprising a chassis displaceable on rails constituting a track on which prestressed or passive active reinforcements conforming to the reinforcement of the concrete parts to be obtained, this chassis supporting a mobile over-hopper to receive the concrete, a fixed inlet hopper of a vibrator mold, a mold before retention, a vibrator mold provided with cores for the counting and the formation of concrete pieces and a posterior mold or refining, also provided with cores, to give the final shape and refining of the concrete parts, the improvements of the invention concerning the means of traction of the machine, the configuration of the chassis of the machine, the anchorages and dimensions given to the vibrator mold or retention mold and to the refining mold, fixing the vibrator mold cores, closing the of the molds, the guidance, shape and traction of the excess hopper, the configuration of the inlet hopper and the armature guiding device located at the front part inside the retention mold.
  • the machine described in this patent includes the use of three molds: one before or retention, a central or vibrator, provided with cores or walls defining the section of the parts to be obtained, and the other rear refining; it also provides two hoppers: one fixed, which pours the concrete onto the reinforcements formed by the cables and the other mobile or input which feeds the previous one.
  • the whole machine When the parts have been formed on a track, the whole machine must be lifted using an overhead crane to place it at the start of a new track; this is due to the fact that the machine has a cable traction mechanism which only allows it to move forwards, which means that the parts obtained can have a maximum length equal to the path of the crane crane and that the machine depends her.
  • the cores forming and compacting the concrete pieces are integral with the vibrating mold, so if you want to change the type of piece to be formed, you must completely disengage this mold and replace it with another and you must disassemble a good part of it. of the machine, which makes it difficult to center and assemble the new molds.
  • the vibrator mold with the fixed hopper have a high capacity which leads to a significant problem because, when the machine reaches the end of the track, it is necessary to remove and throw away the concrete which has remained inside to prevent it from making outlet.
  • the rolling means of the machine remain hidden under its chassis and it is therefore complicated for the user of the overhead crane to correctly place these rolling means on the rails when the machine is changed from the track.
  • the lower part of the chassis even if it can be lifted to have better access to the side closing rubbers, entails disadvantages for access to the mechanisms for adjusting the height of the four support and transfer wheels of the machine, regulation necessary to be able to adjust it to the molding track and thus be able to produce molded parts having the appropriate height.
  • the vibrator mold cores as they are removable, one by one, and that they are fixed with screwed elements of which the quantity is limited, by the effect of the vibration that they transmit, produce fatigue on the fixing elements which then relax and, in some cases, break, causing unwanted vibration dispersion necessarily affecting the product produced.
  • the cores of the central mold by their posterior end, in this patent, were shorter than the own mold in order to improve the molding, which involves difficulties of the compacting by vibration because it is interrupted before the mass of concrete does not happens in the refining mold, and very often fillings and bursts or cracks occur in the molded concrete, at the exit of the machine.
  • the front mold is difficult to clean and maintain because the cores are arranged inside and over its entire length, as well as a stop valve also arranged inside and the wire guide device placed at its part. before, and access to the interior of this mold becomes difficult by unnecessarily prolonging the cleaning operations.
  • the wire guide device located at the front of the retention mold is too far from the central mold, which means that the pressure exerted by the concrete on the reinforcements and the own weight of the latter moves them towards the track, producing deviations that are not desired armatures inside the part to be molded, which results in loss of performance of this part or curvatures due to the imbalance of forces.
  • the inlet overflow even if it is controlled by two lateral cylinders leaving its interior free, has the disadvantage of making its cleaning difficult because it is located in an elevated area difficult to access and as it is formed of a single parts cannot be dismantled, cleaning time becomes longer.
  • the refining mold is supported by four wheels which are supported on round rails integral with the machine chassis, because of its rounded shape which makes it difficult to center the mold relatively precisely with respect to the machine and which prevents ability to make corrections, sometimes necessary, to align it.
  • the refining mold in this patent n1 P9600942, has on its rear part, a relaxation box with a reduction in the cutting of the cores with the idea of countering the expansion of the concrete at the outlet of the machine and improve dimensions of the part to be obtained.
  • this relaxation box produces drawbacks because as there is not much or not at all expansion of the concrete, the dimensions are distorted. of the finished part and even makes the molding operation difficult which results in poor surface finish of the part which is difficult to correct.
  • the over-hopper causes retention in the concrete, making its unloading difficult, because of its displacement by a single hydraulic thrust cylinder which acts on its central zone by dividing it practically in half. This division and the fact that the hopper is one piece makes cleaning jobs more difficult and prolongs them.
  • Another problem is located at the fixed hopper which feeds the vibrator mold, in which the concrete retentions are produced, due in part to its geometric shape and on the other hand, by the vibration that the vibrator mold transmits to it determining a compaction the concrete inside this fixed hopper.
  • a problem existing in current machines is the difficult access to the various mechanisms available to the machine, vibration mechanism, cable traction mechanism and hydraulic unit, which makes normal maintenance work difficult as well as quick access. danger.
  • the wire guide device for guiding the armatures is located at the front of the machine at a considerable distance from the vibrator mold with which the armatures, because of their own weight (catenary effect) and the weight of the concrete located in the vibrator mold, move down from the position where the wire guide device located them at the start. This produces serious problems for the manufactured product, which are difficult to correct.
  • the chassis rolling means are composed of wheels mounted on two axles, one front and the other rear, and drive wheels arranged at the rear end of the machine, mounted on a pendulum controlled by a hydraulic cylinder, which makes it possible to change the height of these drive wheels, by placing them in a working position or in a stopped position. Both the wheels of the front axle and the drive wheels are in visible positions, which facilitates the centered positioning of the machine on the rails.
  • this machine comprises these driving wheels determines that the machine can advance on the rails by means of its cable traction device and retreat on the rails of a new track by means of the hydraulic motorization of these wheels, this peculiarity representing an important advantage because the overhead crane should only be used to move the machine from the end of one of the tracks to the end of a new track, the machine backing up at the start of it by its own motor means, this which limits the use of the overhead crane and that the track and therefore the workpieces can have a length greater than the travel of the overhead crane.
  • the lateral zones of the chassis, comprised between the rolling means have their lower end at a higher plane than the wheels to prevent the deposit and setting of concrete therein, thereby facilitating access to the mechanisms. for closing the molds.
  • wheels provided with adjustable position guide flanges which act on the track rails and ensure the alignment of the machine with respect to to the rail.
  • the chassis of the machine on its rear and front side faces included on the upper part thereof has large and sufficient spaces to have access to the traction vibration mechanisms, the hydraulic unit and the sides of the vibrator mold with the advantages that this represents for carrying out maintenance and this also makes it possible to place folding covers for the protection of concrete and safety for personnel.
  • the retention mold comprises, on the one hand a concrete shut-off valve and for guiding the reinforcements with exchangeable combs controlled by a hydraulic cylinder which acts vertically on this valve and, on the other hand, it is provided with very short cores located on the rear part of the shut-off valve, making it possible to house inside the mold a new effective device for guiding the reinforcements which greatly facilitates the cleaning of this mold.
  • the improvements of the invention include a device for guiding the armatures formed by a series of superimposed and removable plates, the lower being pressed on the track and sliding thereon when the machine is started.
  • This device is located on the inner part of the retention mold, guiding the reinforcements in height and avoiding in this position so close to the vibrator mold that the pressure of the concrete and its own weight pushes these reinforcements down.
  • the central mold or vibrator has supports adjustable in height, with respect to this mold, which fixes them to the chassis of the machine by interposing corresponding elastic elements therein, intended to prevent the transmission of vibrations from the mold to the chassis. With these supports you can perfectly adjust the height of the mold relative to the track.
  • the invention further contemplates that the vibrator mold is shorter than in known machines and that the cores arranged inside it do not occupy the entire mold and they offer a portion in the interior of their mold in the form of a wedge. which makes them penetrate better into the concrete by improving their shaping and by preventing that concrete retention forms inside of it, the quantity of concrete retained in this mold being minimal when the machine arrives at the end of the track.
  • This vibrator mold is fed, in the same way as the known machines by a fixed hopper arranged between the feed hopper and this molds, with the particularities that it moves by the action of two hydraulic cylinders which act on the sides of the machine, preventing it from hindering the discharge of concrete to the fixed hopper, and that the fixed hopper has a geometric shape such that the three sides are inclined, converging towards the lower zone, while the rear side is vertical, by thus obtaining that the capacity of the hopper is reduced, by preventing that arches are formed in the concrete by facilitating the descent of this vibrator mold.
  • the lateral closure arrives at the three molds, to prevent the exit of the concrete under its sides, is done using rubber profiles, which are pressed in an oblique direction by an angular metal profile secured to cylinders of manual control which allow it a certain oscillation so that the rubber adapts better to the surface of the tracks thus ensuring its airtightness.
  • the refining mold is mounted on a portion extending beyond the chassis on which metal slides are arranged to which the mold is coupled by means of alignment supports and it is fixed to the chassis by its upper zone and by its front face, which allows the extraction of this mold by the upper zone of the machine simply by moving it towards the rear part of the latter, the latter remaining stationary.
  • This refining mold has at its rear end and on its upper face a not very wide transverse groove, one inclined face for the exit of the air contained in the concrete, thereby preventing honeycombs from forming on the surface of the parts to be obtained. It is also expected that the mold incorporates at its rear part a height-adjustable deflection plate for manufacturing concrete slabs, which significantly improves their surface finish.
  • the invention provides significant improvements in the traction mechanism of the machine by dragging cable to move it to the molding position, composed of a drive drum controlled by a reduction motor having a brake controlled by an electronic speed variator. , this drum being provided with a clutch and a manual brake and a grooved pulley movable transversely to facilitate the correct winding of this drag cable.
  • the improved machine for the continuous production of concrete parts prestressed or curved, shown by way of example, has a frame (1) on which is mounted, above a hopper (2) in which the concrete is loaded and that is the one that feeds the fixed hopper 83).
  • This over-hopper (2) with mobile load is controlled by two hydraulic cylinders (16) which act on the sides of this one, slides (18) allowing its movement on which the side wheels (17) slide, at the same time as this overflow (2), at its upper half (19) is a removable body which facilitates cleaning.
  • the fixed hopper (3) also has protective covers (21), its inclined side faces (20 ') and converging towards the lower zone, except the rear side (20) which is vertical, to obtain a reduction in its capacity. and to prevent vaults from forming in the concrete, as well as to facilitate its descent to the vibrator mold (5).
  • this vibrator mold (5) which is fed by the hopper (3) and a refining mold (7) are mounted downstream. .
  • the retention mold (4) arranged on the front area of the machine, comprises a stop valve (22) with vertical displacement, responsible for preventing the concrete deposited in the vibrator mold (5) from advancing.
  • This valve (22), provided with armature guiding combs (25), is controlled by a hydraulic cylinder (23) arranged vertically on its central zone and guided in its movement by the set of levers (24) and the transverse compensation axis (24 ').
  • This mold (4) has, at its rear part, not very long cores (26) which remain in contact with the vibrator mold concrete (5), this retention mold being prepared to receive the device for guiding the reinforcements therein. (26a), this device being formed by a series of superimposed and removable plates, the lower being supported on the track (42 '), sliding on it when the machine is started.
  • the vibration of the mold (5) is caused by a set of two vibrators (14) synchronized with each other, mounted on the own mold and controlled by the motor (44) integral with the chassis of the machine. This vibration facilitates the compaction and the extrusion of the concrete deposited inside this vibrator mold (5) by the hopper (3), by forcing it to pass through the refining mold (7) forming the final profile. of the part to be manufactured.
  • the vibrator mold (5) comprises inside its cores (6) which have at their front end a frustoconical position (28) leaving a free space (5 ') between the core (6) and the retention mold (4) to facilitate the passage and molding of concrete.
  • These cores (6) compact the concrete and begin to shape the parts whose final profile will be provided by the refining mold (7), and they are fixed on a plate (27) which is in turn fixed on the mold at by means of screwed elements, which allows them to be removed and replaced by others having a different profile, quantity or number of cells of the parts to be formed.
  • the vibrator mold (5) has on the sides supports (29) provided with slides (29 ') in which are housed screws responsible for fixing them on the mold (5) and adjustment screws (30'), which allows you to change the height of the mold relative to the supports, which therefore means adjusting the height of the mold relative to the track (42 ').
  • These supports (29) mount on the chassis (1) of the machine with the interposition of elastic elements (30), which prevent the transmission of vibrations from the mold to the chassis (1).
  • the vibrator mold (5) is separated at its rear from the retention mold (4), its front part, the refining mold (7) and at its upper part, the fixed hopper (3) by means of elastic seals or rubbers (46), (47) and (48), respectively.
  • the refining mold (7) included inside the cores (8) which are those which will give the final shape to the parts to be obtained, and they are mounted on slides (33 ') integral with the chassis (1) at by means of the alignment supports (33), and they can be arranged in an advanced position of use, to which they are fixed to the frame by folding screws (35) or in a position further back, which allows them to be removed vertically from the machine.
  • This refining mold (7) has at its final section and on its upper face, a not very wide transverse groove (7 '), one inclined face for the exit of the air contained in the concrete, prevents nests from bees are formed on the surface of the parts to be obtained; when this refining mold (7) is intended for the manufacture of slabs, a tilting deflection board (36) is incorporated in its upper rear part which is arranged transversely and with adjustable height, which appreciably improves the surface finish of these slabs.
  • the lateral closure of the vibrator (5) and refining (7) retention (4) molds, by their lower zone to prevent the concrete from leaving, is made by means of rubber profiles (31) which are pressed obliquely by means of 'a metallic angular profile (31') integral with the manual drive cylinders (32) allowing it a certain oscillation so that the rubber adapts better to the surface of the tracks, thus ensuring their airtightness.
  • a cable dragging device is mounted, used to move the machine in the direction of travel, this device comprising a drum (37) on which is wound the dragging cable (49), this device, when it rotates under the action of a reducing motor element (43) provided with brake, causes the machine to advance by means of an electronic speed variator arranged in the control panel.
  • This drag drum (37) is provided with a clutch (39) which makes it possible to release it from the engine (43) to release the cable during the backward movement of the machine at the start of the track and also a brake (38) which prevents the drum from rotating by inertia when it is releasing the cable; this drum (37) also has a grooved guide pulley (40), transversely displaceable to facilitate the correct winding of the towing cable (49).
  • the contact of the machine with the rails (42) is made by means of rolling elements which are composed of wheels (9) mounted on two fixed axles, one front and the other rear, and by driving wheels ( 10). These drive wheels (10) are mounted at the rear end of the machine on the corresponding balance (12) which is controlled by a hydraulic cylinder (13).
  • the wheels (9) mounted on the front end axle and the wheels mounted on the rear end axle also remain visible, which facilitates centering of the machine on the rails by means of the appropriate overhead crane.
  • the driving wheels (10) are controlled by a hydraulic motor (11) which, when it starts, allows the machine to move back on said tracks (42) of a track, after the positioning of the wheels (10) and the lifting of the machine by its rear part by means of the balance (12) and the cylinder (13).
  • All the hydraulic control elements included in the machine are supplied by a hydraulic group (45) mounted on the own chassis (1).
  • This machine comprises, at its front part and placed inside the retention mold (4) and near the valve (22), the armature guiding device (26a) formed by a series of removable superimposed plates, the lower of which is pressed on the track and slides on it when the machine is started, by guiding in height the reinforcements which, in turn, are guided laterally by the grooves of the combs of the stop valve (22). As it is placed so close to the vibrator mold (5), this armature guiding device (26a) prevents the concrete pressure and its own weight from deflecting these armatures downwards or to the sides.
  • This chassis of the machine (1) on its lateral, rear and front faces included at its upper part, has spaces (14 ') which are large and sufficient to have access to the vibration mechanisms (14) and (44), of traction (37) and (43), to the hydraulic unit (45) and to the sides of the vibrator mold (5), as well as to the dragging mechanisms by cable (15) arranged in another space (15 ') provided at the front part of this frame (1), which greatly facilitates normal maintenance work, while at the same time allowing the appropriate folding covers (1 ') concrete protection and safety for people.

Landscapes

  • 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)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
EP04380094A 2003-06-04 2004-04-23 Maschine zum kontinuierlichen Herstellen von Erzeugnissen aus Spannbeton oder Stahlbeton Withdrawn EP1491306A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200301329A ES2246642B1 (es) 2003-06-04 2003-06-04 Perfeccionamientos introducidos en maquinas para la fabricacion en continuo de piezas de hormigon pretensadas o armadas.
ES200301329 2003-06-04

Publications (2)

Publication Number Publication Date
EP1491306A2 true EP1491306A2 (de) 2004-12-29
EP1491306A3 EP1491306A3 (de) 2005-03-23

Family

ID=33396326

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04380094A Withdrawn EP1491306A3 (de) 2003-06-04 2004-04-23 Maschine zum kontinuierlichen Herstellen von Erzeugnissen aus Spannbeton oder Stahlbeton

Country Status (2)

Country Link
EP (1) EP1491306A3 (de)
ES (1) ES2246642B1 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1952960A3 (de) * 2007-01-31 2010-10-06 Prensoland, S.A. Verbesserungen an Maschinen für die kontinuierliche Herstellung von Spannbeton- oder Stahlbetonteilen
CN107379210A (zh) * 2017-08-16 2017-11-24 天津银龙预应力材料股份有限公司 一种混凝土轨道板振捣装置
CN109483712A (zh) * 2018-12-19 2019-03-19 中交第航务工程局有限公司 一种小型混凝土块加工设备
CN109514721A (zh) * 2018-12-19 2019-03-26 中交第航务工程局有限公司 混凝土预制块加工设备
CN110181653A (zh) * 2019-06-28 2019-08-30 上海电气研砼（徐州）重工科技有限公司 一种预应力构件滑移铺筑成型机
CN110666947A (zh) * 2019-11-06 2020-01-10 德睿盛兴（大连）装配式建筑科技有限公司 一种自动布料机
CN112763301A (zh) * 2021-03-19 2021-05-07 张明俊 一种具有贴片功能的建筑混凝土抗裂性能检测系统
CN113119298A (zh) * 2021-04-21 2021-07-16 郑帅 一种全自动制作空心板的机器

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2357383B1 (es) * 2009-01-27 2012-04-04 Azcon Ay Pantoja, Sl M�?quina para la fabricación en continuo de productos de hormigón armado o pretensado.
ES2699083B2 (es) * 2016-01-27 2019-12-12 Prensoland Sa Máquina de fabricación en continuo de placas pretensadas de hormigón y componente de dicha máquina

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067676A (en) * 1974-12-19 1978-01-10 Hewitt Frederick M Apparatus for extruding reinforced concrete
EP0803335A1 (de) * 1996-04-25 1997-10-29 Gestion de Propiedad Industrial Bibel, S.L. Verbesserungen in Vorrichtungen zur kontinuierlichen Herstellung von Betongegenständen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2020415A6 (es) * 1990-01-31 1991-08-01 Echt Sa Maquina para la fabricacion continua de piezas de hormigon.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067676A (en) * 1974-12-19 1978-01-10 Hewitt Frederick M Apparatus for extruding reinforced concrete
EP0803335A1 (de) * 1996-04-25 1997-10-29 Gestion de Propiedad Industrial Bibel, S.L. Verbesserungen in Vorrichtungen zur kontinuierlichen Herstellung von Betongegenständen

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1952960A3 (de) * 2007-01-31 2010-10-06 Prensoland, S.A. Verbesserungen an Maschinen für die kontinuierliche Herstellung von Spannbeton- oder Stahlbetonteilen
CN107379210A (zh) * 2017-08-16 2017-11-24 天津银龙预应力材料股份有限公司 一种混凝土轨道板振捣装置
CN107379210B (zh) * 2017-08-16 2023-07-04 天津银龙预应力材料股份有限公司 一种混凝土轨道板振捣装置
CN109483712A (zh) * 2018-12-19 2019-03-19 中交第航务工程局有限公司 一种小型混凝土块加工设备
CN109514721A (zh) * 2018-12-19 2019-03-26 中交第航务工程局有限公司 混凝土预制块加工设备
CN109514721B (zh) * 2018-12-19 2024-05-14 中交第一航务工程局有限公司 混凝土预制块加工设备
CN109483712B (zh) * 2018-12-19 2024-05-17 中交第一航务工程局有限公司 一种小型混凝土块加工设备
CN110181653A (zh) * 2019-06-28 2019-08-30 上海电气研砼（徐州）重工科技有限公司 一种预应力构件滑移铺筑成型机
CN110666947A (zh) * 2019-11-06 2020-01-10 德睿盛兴（大连）装配式建筑科技有限公司 一种自动布料机
CN112763301A (zh) * 2021-03-19 2021-05-07 张明俊 一种具有贴片功能的建筑混凝土抗裂性能检测系统
CN113119298A (zh) * 2021-04-21 2021-07-16 郑帅 一种全自动制作空心板的机器
CN113119298B (zh) * 2021-04-21 2022-12-13 英索来欣(盐城)新材料科技有限公司 一种全自动制作空心板的机器

Also Published As

Publication number Publication date
EP1491306A3 (de) 2005-03-23
ES2246642B1 (es) 2006-11-16
ES2246642A1 (es) 2006-02-16

Similar Documents

Publication Publication Date Title
EP1491306A2 (de) Maschine zum kontinuierlichen Herstellen von Erzeugnissen aus Spannbeton oder Stahlbeton
CA2827012A1 (fr) Dispositif de transport de pate suivant deux axes perpendiculaires et ensemble de fabrication de blocs moules comprenant un tel dispositif
EP0143043B1 (de) Gleitschalungsfertiger mit zwei Formplatten zum Erstellen von Betonstrassendecken
EP0230433B1 (de) Verfahren und vorrichtung zum stranggiessen eines dünnen gegenstandes aus metall
EP0197844A1 (de) Anlage und Verfahren zum Herstellen von Eisenbetonelementen, insbesondere Platten oder Rohplatten aus Spannbeton
FR2498220A1 (fr) Machine a substituer les traverses de voies ferrees et procede d'utilisation
FR2498218A1 (fr) Machine pour le bourrage et le nivellement d'une voie ferree, comprenant un dispositif de stabilisation
EP0803335A1 (de) Verbesserungen in Vorrichtungen zur kontinuierlichen Herstellung von Betongegenständen
EP1952960B1 (de) Verbesserungen an Maschinen für die kontinuierliche Herstellung von Spannbeton- oder Stahlbetonteilen
FR2659593A1 (fr) Dispositif pour la fabrication automatique de produits en beton moule necessitant un demoulage par retournement.
CH686144A5 (fr) Train de renouvellement d'une voie ferree.
EP0012069B1 (de) Werkstattartige Vorrichtung mit einer sich drehenden Trommel zur Herstellung von Erzeugnissen aus Beton, Spannbeton und/oder Stahlbeton
WO1999050502A1 (fr) Procede de construction de voie ferree, panneau unitaire de voie, machine de depose de tels panneaux, machine de betonnage, et voie ferree
EP0384817B1 (de) Anlage zum Herstellen von vorgespannten Betongegenständen, insbesondere von langgestreckten Gegenständen
FR2729602A1 (fr) Procede de moulage sous pression, et installation pour la mise en oeuvre de ce procede
EP0236237B1 (de) Stranggussanlage für Metall
US1070326A (en) Machine for consolidating the road metal in the construction and maintenance of metaled roadways.
EP0008820B1 (de) Verbesserte Einrichtung zur Herstellung vorgespannter Erzeugnisse
BE500557A (de)
FR2643848A1 (fr) Chaine de production automatique de poutres coffrantes en beton arme pour planchers-dalles
FR2649638A2 (fr) Chaine de production automatique de poutres coffrantes en beton arme pour planchers-dalles
EP0203867A1 (de) Vorrichtung zum Giessen von Metallbändern
FR2613179A1 (fr) Procede et dispositif pour remplir avec une masse de fromage une batterie de moulage de fromage
EP0206869B1 (de) Stranggiessanlage für dünnes Metallband
WO2001010616A1 (en) Method and apparatus for producing concrete products

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL HR LT LV MK

17P Request for examination filed

Effective date: 20041111

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL HR LT LV MK

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20121123