WO2013189507A1 - Dispositif et procédé pour le retraitement d'un élément de coffrage - Google Patents

Dispositif et procédé pour le retraitement d'un élément de coffrage Download PDF

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Publication number
WO2013189507A1
WO2013189507A1 PCT/EP2012/002596 EP2012002596W WO2013189507A1 WO 2013189507 A1 WO2013189507 A1 WO 2013189507A1 EP 2012002596 W EP2012002596 W EP 2012002596W WO 2013189507 A1 WO2013189507 A1 WO 2013189507A1
Authority
WO
WIPO (PCT)
Prior art keywords
cleaning
mold surface
treatment
formwork element
heat
Prior art date
Application number
PCT/EP2012/002596
Other languages
German (de)
English (en)
Inventor
Stefan Weigel
Original Assignee
Stefan Weigel
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 Stefan Weigel filed Critical Stefan Weigel
Priority to PCT/EP2012/002596 priority Critical patent/WO2013189507A1/fr
Publication of WO2013189507A1 publication Critical patent/WO2013189507A1/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
    • B28B5/00—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping
    • B28B5/04—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping in moulds moved in succession past one or more shaping stations
    • 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
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/0029—Moulds or moulding surfaces not covered by B28B7/0058 - B28B7/36 and B28B7/40 - B28B7/465, e.g. moulds assembled from several parts
    • B28B7/0055—Mould pallets; Mould panels
    • 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
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/0064—Moulds characterised by special surfaces for producing a desired surface of a moulded article, e.g. profiled or polished moulding surfaces
    • 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
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
    • B28B7/348—Moulds, cores, or mandrels of special material, e.g. destructible materials of plastic material or rubber
    • 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
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/38—Treating surfaces of moulds, cores, or mandrels to prevent sticking
    • B28B7/382—Devices for treating, e.g. sanding
    • 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
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/38—Treating surfaces of moulds, cores, or mandrels to prevent sticking
    • B28B7/386—Cleaning

Definitions

  • the invention relates to an apparatus and a method for reprocessing a reusable formwork element.
  • Such formwork elements are common in concrete formwork. Shuttering elements are used to provide the formwork or mold for the concrete casting.
  • the formwork is the corresponding negative to the casting.
  • the individual formwork elements from which the formwork is erected for example, of a frame construction, constructed of metal on which at least one plastic plate is attached with at least one molding surface.
  • the molding surface provides for the surface formation of the cast component, wherein the surface of the formwork is also referred to as a formwork skin.
  • the plastic plate may for example consist of thermoplastic plastic.
  • the molding surfaces of the plastic plates form the actual casting mold and surface, which is filled by the cast concrete. Since the later appearance of the finished concrete mold surface is determined directly by the surface quality and the structure of the mold surfaces used, a high dimensional accuracy of the mold surfaces is usually required.
  • the invention has for its object to provide an apparatus and a method for reprocessing a reusable formwork element, so that a cost-effective cleaning of the mold surfaces is possible and the mold surface of the recycled formwork element has the desired shape and dimensional accuracy.
  • a device for reprocessing a reusable formwork element comprising a cleaning device for cleaning a soiled mold surface of the formwork element and a treatment device for the aftertreatment of the cleaned mold surface.
  • the treatment device is preferably designed in such a way as to change, reduce or eliminate the cleaning traces generated by the cleaning device during cleaning on the molding surface.
  • the device may comprise a transport device for transporting the formwork element between the cleaning device and the treatment device.
  • a transport device for transporting the formwork element between the cleaning device and the treatment device.
  • the entire process of preparation, from cleaning to aftertreatment, can be simplified because no further handling of the concrete formwork element is necessary and the processes can be logistically linked directly.
  • the formwork element is continuously transported on the transport device and cleaned during transport through the cleaning device and / or aftertreated by the treatment device.
  • the cleaning device can be designed for removing adhesions on the molding surface and preferably have means for mechanical and / or hydraulic and / or pneumatic removal of adhesions. These types of treatment are particularly suitable for removing concrete adhesions.
  • the hydraulic removal can be done by high-pressure water jets, the mechanical removal by brushing and the pneumatic removal by compressed air or sandblasting. Any traces of cleaning on the molding surface can be tolerated, since these traces of cleaning can be changed, reversed, eliminated or leveled out by the subsequent aftertreatment. Therefore, the cleaning can be made as effective as necessary to optimize the machining time.
  • the cleaning device can preferably act on the soiled mold surface with high pressure of water and / or with compressed air and / or with sand blasting and / or with shot peening and / or with mechanical brushes and / or with ultrasound. These types of cleaning can shorten the cleaning time, and the combination also reduces process time and makes cleaning cost-effective. Depending on the composition of the instructions on the forming surface, whether the material has a high hardness or is softer or whether the layer thickness is small or large, the cleaning device can effectively act.
  • the treatment device may comprise means for mechanically and / or thermally smoothing the cleaned mold surface.
  • the smoothing can be done to the extent that the remaining unevenness or cleaning traces of the molding surface have no negative effects on the cast surface to be produced, or no optical effects on the molding surface are no longer present.
  • the treatment device may comprise means for generating heat and / or means for heat transfer to the forming surface. This makes it possible to heat the mold surface and thereby perform the aftertreatment.
  • the supplied heat, the forming the forming surface material in particular a thermoplastic material, preferably a thermoplastic plastic can be plastically formed and the effects of cleaning can be remedied or equalized.
  • the treatment device may comprise means for generating hot air and / or for generating an open flame and / or for generating infrared radiation.
  • the heat generation within the treatment facility, an optimal design can be made to the existing local conditions. This can be an adaptation to the geometry of the molding surfaces, to the required base temperature for smoothing or also to the climatic conditions at the site of the installation or to the different energy costs for the operation of the device. All types of heat input can also be used simultaneously to smooth out specific surface areas in different ways, thereby shortening the treatment time.
  • the cleaning device and / or the treatment device and / or the transport device can be electronically controlled.
  • the cleaning device and / or the treatment device can be controlled efficiently.
  • the cleaning device and / or the treatment device can preferably act on the molding surface without contact or contact. Due to the non-contact action large surface portions of the molding surface can be cleaned and / or treated simultaneously.
  • the non-contact treatment can be avoided by the treatment on the mold surface impressions.
  • the non-contact treatment can also be used especially for targeted uneven mold surfaces, if they are necessary for a special mold and thus a complicated adaptation would be necessary for touching treatment.
  • When contacting the cleaning device can be acted on heavily soiled areas and / or particularly to be treated areas of the molding surfaces.
  • an additional smoothing of the mold surface can be specifically carried out by means of a special profile, for instance by a heated roller.
  • a very flat mold surface can be produced in order to achieve a high quality of the concrete surface. It is also possible to selectively introduce a profile into the molding surface so that a specific structure can be imaged in the concrete.
  • the object of the invention is also achieved by a method for reprocessing a reusable formwork element, comprising the cleaning of a soiled mold surface of the formwork element and the aftertreatment of the cleaned mold surface.
  • the dirty mold surface may be cleaned by mechanical and / or hydraulic and / or pneumatic means, preferably by high pressure water jetting and / or compressed air and / or sandblasting and / or shot peening and / or brushing and / or ultrasound ,
  • cleaning cleaning traces and structural disturbances can be tolerated on the mold surface, as they are changed by the treatment again and preferably equalized. Due to the optimal choice of cleaning agents, the cleaning time can be shortened.
  • the smoothing of the molding surface may advantageously be effected by heat treatment of the molding surface, wherein the heat input at the molding surface preferably by heat conduction and / or thermal radiation and / or heat flow, preferably by hot air and / or by open flame. men and / or by infrared radiation sources and / or by thermocouples.
  • the heat that acts on the mold surface can be used to smooth the deformations or cleaning traces in a controlled manner. Due to the different heat treatments, the cheapest method can be chosen. Thus, the heat radiation or flow is advantageous for large molding surface sections. For smaller sections, the principle of heat conduction can be used.
  • both the time required and the quality of the reprocessed molding surface can be influenced. These methods have the advantage that no mechanical processing takes place, and as a result the mold surface is not removed and the service life is not additionally limited. There is no need for any machining tools that require a machine tool. As a result, maintenance costs and costs can be reduced.
  • a manual cleaning of the molding surface can be carried out by mechanical and / or hydraulic and / or pneumatic means.
  • the possibility of carrying out manual cleaning after automatic cleaning offers the advantage that any remaining dirt can be removed in a targeted manner. As a result, an optimal cleaning result can be achieved. Since a change, reduction or leveling of the cleaning marks on the molding surface is subsequently effected by the aftertreatment, the cleaning can be carried out with increased mechanical stress on the molding surface, in order to obtain a time-optimal cleaning result. In the subsequent smoothing any generated cleaning traces or structural disturbances of the forming surface are again changed, reduced or equalized.
  • the aftertreatment of the molding surface only at the areas that lead to a defect in the formwork.
  • the molding surface has areas with and without cleaning traces. Areas that have cleaning traces and would thus create an inferior casting surface, because the formwork is reflected in the casting, must be smoothed.
  • areas that have cleaning traces and would thus create an inferior casting surface, because the formwork is reflected in the casting must be smoothed.
  • instead of smoothing the entire mold surface in each reprocessing cycle only those areas that have cleaning traces are smoothed. This can shorten the treatment time and reduce costs.
  • the treatment device may preferably imprint a specific structure on the molding surface in order to image it in the concrete surface. It is not only possible to smooth the surface of the molding surfaces, but after smoothing or instead of smoothing to bring a targeted structure.
  • the concrete surfaces to be produced can be be provided nem corresponding surface course. This can be advantageously used if it is exposed concrete, which is at least partially plastered or treated.
  • contacting treatment agents are used which impress the corresponding pattern in the molding surface. During reprocessing, the structure can then be removed or changed again.
  • Figure 1 shows an arrangement of the switching elements in the device during the cleaning process.
  • Figure 2 shows an arrangement of the formwork elements in the device during the treatment process.
  • the concrete formwork element 2 is shown while it is transported by the cleaning device 3 of a device 1 according to the invention.
  • the formwork element 2 lies with its back, which consists of the frame 21 and which gives the formwork element 2 its strength, on the transport device 5.
  • the transport device 5 may consist of a roller device with driven rollers as shown. However, embodiments are also possible as a conveyor belt or on individual workpiece carriers.
  • On the forming surface 20 of the formwork element 2 is located after stripping an adhesion 22, which consists of concrete residues together with a film of Betonschmemmen.
  • the formwork element 2 is moved on the transport device 5 in the cleaning device 3 under the cleaning means 31. In the present example, the formwork element moves from right to left.
  • the cleaning agents 31 may move over the formwork elements 2.
  • the cleaning means 31 may be provided with high-pressure nozzles for cleaning liquids or with means for sandblasting or for shot peening or for brushing or for generating ultrasound. It is also possible to provide a plurality of different cleaning agents 31 at the same time, so that the cleaning section consists of a plurality of cleaning means 31 of different types.
  • the formwork element 2 is after passing through the cleaning section on the forming surface 20 free of adhesions and can be transported to the treatment device 4. It is also possible that the formwork element 2 is fixed and the treatment device 4 is moved.
  • FIG. 2 shows how after completion of the cleaning phase the formwork element 2 passes through the treatment device 4 of the device 1 according to the invention.
  • treatment means 41, 42 provided for smoothing.
  • the treatment agents 41, 42 may consist of non-contact means 41 or of contacting means 42.
  • the means 41 work primarily by heat radiation or heat flow 43. This allows a large surface to be treated in a short time.
  • the means 41 serve to generate hot air or to generate an open flame or to generate infrared radiation. By adjusting the distance and the power of the means 41, the required smoothing duration and the quality of the surface can be influenced.
  • a contacting treatment means 42 which has the form of a roller and mainly uses the principle of heat conduction.
  • a mechanical force can additionally act on the molding surface 20, and it is possible to produce a particularly smooth or a specifically shaped surface region of the molding surface 20.
  • smoothing means 41, 42 can be provided, which can act on the molding surface 20 of the formwork element 2, both in contact and non-contact.
  • a manual cleaning phase may be provided. In this case, not removed remnants can be eliminated. In this case, the maximum cleaning force required or the maximum cleaning pressure required for high-pressure cleaning or sandblast cleaning or for shot peening can be used to allow a short cleaning time. Various traces of use and / or cleaning can be removed by subsequent smoothing. As a result, the cleaning of the formwork elements 2 is inexpensive and time-optimized.
  • the cleaning can take place in a cleaning device designed as a continuous flow system.
  • a cleaning device designed as a continuous flow system.
  • a high-pressure water jet method by means of rapidly rotating nozzle carriers containing a plurality of jet nozzles take place.
  • the nozzle carriers can be guided over the forming surfaces by means of automatic cleaning patterns.
  • This cleaning device can be followed by a manual, partially mechanized cleaning process, in order to be able to remedy residual residues remaining on an individual basis.
  • the nozzle carriers are guided manually or semiautomatically targeted individually over the forming surfaces. In this way, it can be avoided that the settings of the cleaning parameters of the continuous flow system must be based on the strongest adhesions on the molding surface.
  • a thermal treatment such as the treatment of the mold surface 20 by hot air, by open flame, by radiant heat, for example by infrared radiant heat, by vibration method, for example by microwaves or by sound waves, by hot gas irradiation, by hot fluid irradiation or by contact with a heated tool for use.
  • the controlled action of thermal energy on the molding surface of the thermoplastic formwork element, the deformations are eliminated.
  • the molding surfaces 20 may for example consist of thermoplastic material, preferably polypropylene. The surface is smoothed again.
  • the intensity of the thermal treatment is controlled in such a way that the cleaning traces caused by the cleaning are smoothed out so far that in a further use of the formwork elements no negative effects on the building surface of the casting material arise.
  • the smoothing of the molding surface is tuned and controlled by means of a suitable coordination of the parameters, for example temperature level and exposure time, depending on the material type and thickness of the molding surface by means of suitable process control systems.
  • the heat input generated in the formwork elements is controlled so that unwanted chemical or physical changes in the material structure and composition can be safely avoided.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)

Abstract

L'invention concerne un dispositif et un procédé pour le retraitement d'un élément de coffrage (2) réutilisable. Pour permettre un nettoyage peu onéreux de la surface de moulage (20) d'un élément de coffrage (2) de manière telle que la surface de moulage (20) de l'élément de coffrage (2) retraité présente la forme et la stabilité dimensionnelle souhaitées, selon l'invention, un dispositif pour le retraitement d'un élément de coffrage réutilisable (2) comprend un dispositif de nettoyage (3) pour nettoyer une surface de moulage (20) souillée de l'élément de coffrage (2) et un dispositif de traitement (4) pour le post-traitement de la surface de moulage (20) nettoyée. De même, l'invention concerne un procédé pour le retraitement d'un élément de coffrage (2) réutilisable, comprenant le nettoyage d'une surface de moulage (20) souillée de l'élément de coffrage (2) et le post-traitement de la surface de moulage (20) nettoyée.
PCT/EP2012/002596 2012-06-20 2012-06-20 Dispositif et procédé pour le retraitement d'un élément de coffrage WO2013189507A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2012/002596 WO2013189507A1 (fr) 2012-06-20 2012-06-20 Dispositif et procédé pour le retraitement d'un élément de coffrage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2012/002596 WO2013189507A1 (fr) 2012-06-20 2012-06-20 Dispositif et procédé pour le retraitement d'un élément de coffrage

Publications (1)

Publication Number Publication Date
WO2013189507A1 true WO2013189507A1 (fr) 2013-12-27

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PCT/EP2012/002596 WO2013189507A1 (fr) 2012-06-20 2012-06-20 Dispositif et procédé pour le retraitement d'un élément de coffrage

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113733317A (zh) * 2021-08-20 2021-12-03 安徽绿风环保节能材料有限公司 一种加气混凝土砌块底板清理机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4201319A1 (de) * 1992-01-20 1993-08-05 Real Gmbh Tafel zur verwendung bei der formgebung von betonbauteilen und als transportpalette
EP1027971A1 (fr) * 1997-04-08 2000-08-16 Capaccioli S.r.l. Dispositif automatique pour la fabrication de briques normales ou spéciales , de carreaux , de tuiles et d'éléments de carrelage de toutes formes semblables à des produits fabriqués à la main à partir d'argile humide
EP2119542A2 (fr) * 2008-05-13 2009-11-18 Progress Maschinen & Automation AG Procédé de fabrication d'éléments préfabriqués en béton, dans lequel la fabrication est exécutée sur des moules -palettes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4201319A1 (de) * 1992-01-20 1993-08-05 Real Gmbh Tafel zur verwendung bei der formgebung von betonbauteilen und als transportpalette
EP1027971A1 (fr) * 1997-04-08 2000-08-16 Capaccioli S.r.l. Dispositif automatique pour la fabrication de briques normales ou spéciales , de carreaux , de tuiles et d'éléments de carrelage de toutes formes semblables à des produits fabriqués à la main à partir d'argile humide
EP2119542A2 (fr) * 2008-05-13 2009-11-18 Progress Maschinen & Automation AG Procédé de fabrication d'éléments préfabriqués en béton, dans lequel la fabrication est exécutée sur des moules -palettes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113733317A (zh) * 2021-08-20 2021-12-03 安徽绿风环保节能材料有限公司 一种加气混凝土砌块底板清理机

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