EP4279236A1 - Vorrichtung zum ablegen von separatoren zwischen produkten von betonextrusionsmaschinen - Google Patents

Vorrichtung zum ablegen von separatoren zwischen produkten von betonextrusionsmaschinen Download PDF

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Publication number
EP4279236A1
EP4279236A1 EP22382488.9A EP22382488A EP4279236A1 EP 4279236 A1 EP4279236 A1 EP 4279236A1 EP 22382488 A EP22382488 A EP 22382488A EP 4279236 A1 EP4279236 A1 EP 4279236A1
Authority
EP
European Patent Office
Prior art keywords
caisson
concrete
placement
separating
products
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.)
Pending
Application number
EP22382488.9A
Other languages
English (en)
French (fr)
Inventor
Alejandro Caravaca Sasse
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
Priority to EP22382488.9A priority Critical patent/EP4279236A1/de
Priority to PCT/ES2023/070319 priority patent/WO2023222940A1/es
Publication of EP4279236A1 publication Critical patent/EP4279236A1/de
Pending 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
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
    • 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
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/14—Apparatus or processes for treating or working the shaped or preshaped articles for dividing shaped articles by cutting
    • B28B11/16—Apparatus or processes for treating or working the shaped or preshaped articles for dividing shaped articles by cutting for extrusion or for materials supplied in long webs
    • 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
    • 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
    • B28B23/022—Means for inserting reinforcing members into the mould or for supporting them in the mould
    • B28B23/024—Supporting means
    • B28B23/026—Mould partitionning elements acting as supporting means in moulds, e.g. for 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
    • 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

Definitions

  • the invention refers to a device to place separators in prestressed concrete extruding machines, contributing, to the function to which it is designed, with advantages and characteristics that are disclosed in detail thereafter.
  • the object of this invention falls on a device applicable to be installed in a products of concrete, preferably prestressed, extruding machine which, essentially comprising a sliding carriage along a guideways with capacity to transfer a separating caisson along it and to deposit it and come back to pick it up acting in a synchronized manner with the guillotine of the machine concrete flow, it has the aim of facilitating the placement and extraction of the said separator, the said separator placement and extraction can even be in a fully automatic manner , that means, avoiding the manual intervention of operators to carry out the said placement, with the subsequent saving of effort and cost of workforce and improvement in the dimensional accurateness of the products of concrete.
  • the field of application of this invention is within the sector of the industry engaged in manufacturing products of concrete, preferably prestressed concrete.
  • the construction regulations request that the products of concrete, preferably products of prestressed concrete, for slabs (girders, solid slabs, ribbed pre-slabs, honey-comb slabs%) are produced leaving apparent the ends of the reinforcing steels. This is the case, among other, of France and countries having a French influence in Africa (Morocco, Norway, Tunisia%) that are governed by the French construction regulations.
  • the extruding machines/slipformers/ molding machines/flow former comprise a guillotine device to cut the concrete flow.
  • One of the historic problems of this system is to achieve the sufficient accurateness in the sizes of the finished part, as well for the length as for the straightness of the cut and perpendicularity with the section.
  • the concrete does not come out with the same speed along the full width of the cut, producing a curved instead of straight cut.
  • caisson-shaped separators are used, normally of metal, that are placed manually after each cut of the guillotine.
  • the objective of this invention is, therefore, to develop a new device that avoids that the placement of the said separators is to be carried out manually by an operator.
  • the placement manually of the separators by an operator presents the following drawbacks:
  • the device for the placement of separators in products of concrete extruding machines that the invention proposes is configured as the suitable solution to the above-mentioned objective, the characterizing details making it possible and that distinguish it are conveniently appearing in the final claims attached to this specification.
  • the said device comprises, essentially, securing and displacing means to carry out the placement and extraction of a separating caisson so that the caisson remains placed in the intermediate gap existing between the rear and front ends of the parts formed, the time necessary to avoid their deformation while the machine goes on extruding.
  • the device comprises a carriage adapted to slide along a horizontal guideway that is incorporated to the machine, on its concrete outflow, together with the cutting guillotine provided on the said outlet.
  • the carriage it is foreseen to include securing means to secure the separating caisson and transfer it with the carriage along the guideways and vertical displacement means for lifting and lowering the separating caisson, to lower the caisson and that it remains deposited in the gap existing after the cut of the part of concrete that the guillotine carries out and to newly lift it later on.
  • the carriage is moved on a linear guided system that can be hydraulically, pneumatically or electrically powered.
  • the means that allow the downwards and upwards movement of the separating caisson comprise, at least, a linear actuator, linked to the hydraulically, pneumatically or electrically powered caisson securing means,
  • the caisson securing means are constituted by a fixed anchorage system, for example, a screwed platen, which always keeps the caisson joined to the device carriage.
  • the caisson securing means consist of a removable anchorage system, for example based on electromagnetic attraction, the means of which only hold the caisson at the moment of making it go down and lift it again, but not during the time in which it is acting as separator of the guillotined parts.
  • the device for the placement of separators in products of concrete extruding machines comprises a PLC (Programmable Logic Controller, known by its initials in English), that controls the operation of the machine and synchronizes its movement based on the movement of the displacement of the extrusion of material and of its guillotine.
  • PLC Programmable Logic Controller
  • the device allows to avoid the efforts that the operator should have to make to put and pick up in each separation of parts one or more separating caissons while it significantly improves the accurateness of the separating caisson placement (or contiguous slabs, separated to a certain distance), consequently improving the accurateness of the part of concrete sizes.
  • the device of the invention allows to cut down the cost of the workforce specially dedicated to the said task.
  • the device (1) of the invention is applicable for its installation in an extruding machine (2) parts (3) of concrete, preferably concrete with reinforcing steel threads (4), for instance beams or girders, of those comprising a guillotine (5) to cut the concrete outflow and form the said parts (3) and the respective ends of which, rear (3a) and front (3b), are kept formed and without being deformed by placing between them a separating caisson (6) and it is distinguished in that it comprises securing and displacing means (10,11,12,13) to carry out the placement and extraction of the said separating caisson (6) so that the caisson (6) remains placed in the intermediate gap (7) existing between the said rear (3a) and front (3b) ends of the parts (3) formed the time necessary to avoid its deformation while the machine goes on extruding.
  • parts (3) of concrete preferably concrete with reinforcing steel threads (4), for instance beams or girders, of those comprising a guillotine (5) to cut the concrete outflow and form the
  • the device (1) comprises, essentially, a carriage (10) adapted to slide along a horizontal guideways (11) that is incorporated to the machine (2) on its outlet (2a) of the concrete flow (3), together with the cutting guillotine (5) provided at the said outlet, in which carriage it is contemplated to include securing means (12) to secure the separating caisson (6) and transfer it with the carriage (10) along the guideways (11), as well as means of vertical displacement (13) to lift and lower the separating caisson (6) that means, to lower the caisson (6), so that it remains deposited in the gap (7) existing after the cut of the part (3) of concrete that the guillotine (5) carries out and its further lifting.
  • the carriage (10) is hydraulically, pneumatically or electrically powered.
  • the means of vertical displacement (13) of the separating caisson (6) comprise, at least, a linear actuator, linked to the hydraulically, pneumatically or electrically powered securing means (12) of the caisson (6) to the carriage (10).
  • the securing means (12) of the separating caisson (6) are constituted by a fixed anchorage, for example, a screwed platen that keeps the caisson (6) permanently joined to the carriage (10) of the device (1).
  • the securing means (12) of the separating caisson (6) consist of a removable anchorage, for example an electromagnetic anchorage, that only secures the caisson (6) during the transfer with the carriage (10) along the guideways (11) and at the moment of lowering and lifting it again, but not during the time in which it remains located in the intermediate gap (7) existing between the contiguous parts of concrete (3).
  • the placement and extraction of the said separating caisson (6) through the securing and displacement means (10,11,12,13) is carried out by means of a PLC (2b) which controls the operation of the machine (2) and synchronizes it with the displacement of the machine (2) in its forwards movement to determine the outflow of extruded concrete that forms the parts (3) and with the periodical triggering of the guillotine (5) that is cutting the said parts (3).
  • the time during which the caisson (6) remains placed in the intermediate gap (7) shall be sufficient in order that the material of concrete is no longer deformed at the moment in which the said caisson (6) is newly extracted, therefore the length of the guideways (1) shall be conveniently calculated for this, especially in this example of embodiment, in which the means (12) securing the caisson (6) on the carriage (10) are fixed because the device (1) is being displaced together with the machine (2) itself.
  • the guillotine (5) as the separating caisson (6) that preferably comprises a parallelepiped metal body, presents caissons coinciding with the position of the reinforcing steel threads (4) that remain integrated in the concrete of the parts (3) that are being formed so that, once formed, they remain joined by the said reinforcing steel threads (4) that, later, will be conveniently cut by means of a suitable saw.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
EP22382488.9A 2022-05-20 2022-05-20 Vorrichtung zum ablegen von separatoren zwischen produkten von betonextrusionsmaschinen Pending EP4279236A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP22382488.9A EP4279236A1 (de) 2022-05-20 2022-05-20 Vorrichtung zum ablegen von separatoren zwischen produkten von betonextrusionsmaschinen
PCT/ES2023/070319 WO2023222940A1 (es) 2022-05-20 2023-05-17 Máquina de extrusión de hormigón

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22382488.9A EP4279236A1 (de) 2022-05-20 2022-05-20 Vorrichtung zum ablegen von separatoren zwischen produkten von betonextrusionsmaschinen

Publications (1)

Publication Number Publication Date
EP4279236A1 true EP4279236A1 (de) 2023-11-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP22382488.9A Pending EP4279236A1 (de) 2022-05-20 2022-05-20 Vorrichtung zum ablegen von separatoren zwischen produkten von betonextrusionsmaschinen

Country Status (2)

Country Link
EP (1) EP4279236A1 (de)
WO (1) WO2023222940A1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53133226A (en) * 1977-04-26 1978-11-20 Showa Denko Kk Continuous forming apparatus for light weight porous body
US4952129A (en) * 1987-04-29 1990-08-28 S.C.A.C. Societa Cementi Armati Centrifugati Spa Plant to manufacture elongated elements of prestressed reinforced concrete
JP3255826B2 (ja) * 1995-05-25 2002-02-12 新日本製鐵株式会社 軽量気泡コンクリート切断装置
ES2483190B1 (es) * 2013-02-05 2015-05-11 Prefabricados Pujol, S.A. Procedimiento de fabricación de piezas de hormigón y pieza de hormigón así obtenida

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2517059A1 (de) * 1975-04-17 1976-10-28 Frederick Maxwell Hewitt Extrudiervorrichtung zum formen von beton-fertigbauteilen
ES2257197B1 (es) * 2004-11-02 2007-04-16 Prefabricaciones Y Contratas, S.A.U. (Precon, S.A.U.) Mejoras introducidas en la fabricacion de traviesas de hormigon para aparatos de via de ferrocarril.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53133226A (en) * 1977-04-26 1978-11-20 Showa Denko Kk Continuous forming apparatus for light weight porous body
US4952129A (en) * 1987-04-29 1990-08-28 S.C.A.C. Societa Cementi Armati Centrifugati Spa Plant to manufacture elongated elements of prestressed reinforced concrete
JP3255826B2 (ja) * 1995-05-25 2002-02-12 新日本製鐵株式会社 軽量気泡コンクリート切断装置
ES2483190B1 (es) * 2013-02-05 2015-05-11 Prefabricados Pujol, S.A. Procedimiento de fabricación de piezas de hormigón y pieza de hormigón así obtenida

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Publication number Publication date
WO2023222940A1 (es) 2023-11-23

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