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EP1993795A1 - Dispositif et procédé de production de corps moulés en béton humide ou en des matériaux de type apparenté - Google Patents

Dispositif et procédé de production de corps moulés en béton humide ou en des matériaux de type apparenté

Info

Publication number
EP1993795A1
EP1993795A1 EP07722039A EP07722039A EP1993795A1 EP 1993795 A1 EP1993795 A1 EP 1993795A1 EP 07722039 A EP07722039 A EP 07722039A EP 07722039 A EP07722039 A EP 07722039A EP 1993795 A1 EP1993795 A1 EP 1993795A1
Authority
EP
European Patent Office
Prior art keywords
sensor
concrete
mold
wet concrete
vibrations
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Withdrawn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
EP07722039A
Other languages
German (de)
English (en)
Inventor
Heinrich Walk
Andreas Wörz
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.)
Rampf Formen GmbH
Original Assignee
Rampf Formen GmbH
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 Rampf Formen GmbH filed Critical Rampf Formen GmbH
Publication of EP1993795A1 publication Critical patent/EP1993795A1/fr
Withdrawn legal-status Critical Current

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
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
    • B28B3/022—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form combined with vibrating or jolting
    • 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
    • B28B17/0063—Control arrangements
    • B28B17/0081—Process control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B30B11/022—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space whereby the material is subjected to vibrations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
    • G01N33/383—Concrete or cement

Definitions

  • the invention relates to a device for the production of Forr ⁇ Effn according to claim 1 or 36 and a method for producing molded articles according to claim 29.
  • the invention has for its object to develop a device or a method which or which makes it possible to measure directly, what influence a Energy introduction in the form of vibrations and / or an introduction of pressure, for example, in a so-called shaking on movement variables such as frequency and / or amplitude of a moist material such as concrete has.
  • the device according to the invention for the production of moldings from moist concrete or similar materials has at least one sensor, by means of which movement data of at least one solid can be detected during the shaking process, which is located in the moist concrete.
  • This makes it possible to directly detect what influence the so-called machine parameters have on the wet concrete in the mold.
  • This direct observation of the movements in the wet concrete allows to derive general optimizations for the machine parameters in the production of moldings from wet concrete.
  • the core of the invention is thus a detection of movement data of the wet concrete so a hitherto impossible detection of the actual movement processes in the mold in the wet concrete in the production of a shaped body.
  • movement data is understood to mean data which is detected by the sensor in the form of measured values, these measurement values having in common that they are suitable for determining quantities which describe a movement.
  • Such sizes are for example Frequency or amplitude or speed or acceleration or deceleration.
  • Moisture data in the sense of the invention are understood to be data which are detected by the sensor in the form of measured values, these measured values having in common that they are suitable for determining quantities by which the water content of the moist concrete can be determined.
  • materials which are related to moist concrete are understood as meaning all flowable materials which harden and contain solids in the flowable state or can absorb them as foreign bodies.
  • a shaped body is understood to be any body that can be produced from moist concrete. These can be concrete blocks as well as large concrete parts such as walls and ceilings. Also concrete parts with reinforcement are understood in the context of the invention by the term shaped body.
  • a shaking process is understood to mean the process in which vibrations are introduced into the moist concrete in the mold or vibrations and pressure are introduced.
  • the invention provides to equip the sensor with a microwave transmitter and a microwave receiver.
  • Appropriate transmitters and receivers are available as standard components and have a small size.
  • the microwave transmitter and the microwave receiver of the sensor with microwaves in a range from approximately 20 GHz to 50 GHz.
  • this frequency range allows for the detection of small solids and, on the other hand, is sufficiently above that Frequencies with which the wet concrete is excited.
  • the frequency range is suitable for exact measurements.
  • the invention provides for equipping the device with evaluation electronics with which at least one movement parameter such as frequency, direction of movement, speed or acceleration can be calculated from the acquired movement data. Such data can then be used for analysis without further processing or forwarded to an electronic machine controller for further processing.
  • at least one movement parameter such as frequency, direction of movement, speed or acceleration
  • the invention provides to determine from the motion data vibrations of the solid, which are between 30 Hz and 400 Hz. Experience has shown that this frequency range has the strongest effects on the behavior of the wet concrete.
  • the senor is arranged outside the wet concrete located in the mold cavity. As a result, this can be safely accommodated against unwanted loads.
  • the invention provides to arrange the sensor in the wet concrete, which is located in the mold cavity.
  • Such an arrangement is provided in particular when the sensor is used in the production of larger concrete parts whose form is designed as formwork and which is supplied by means of a vibrating probe, a so-called vibrator, vibrating energy.
  • the invention also provides for the sensor in the mold bottom part of the mold and in particular on a wall of the mold cavity to arrange.
  • the sensor is connected to the component which essentially determines the shaped body and can thus be arranged on the shaped body individually at a position relevant to the specific shaped body.
  • the invention also provides for arranging the sensor in the upper mold part and in particular in a stamp surface of the stamp.
  • a stamp surface of the stamp Here is a comparatively large space available for the sensor.
  • the invention provides to embed the sensor in a body or to arrange behind a body, which consists of a material permeable to microwaves, wherein the body is in particular designed as a ceramic body. As a result, the sensor is optimally protected against stress.
  • the invention provides to detect a moisture content of the wet concrete with the sensor.
  • a detection of the moisture content of the wet concrete in the mold also allows conclusions about the requirements in the production of a shaped body.
  • an alternating or parallel detection of moisture content and movement data allows an even more meaningful evaluation of the data obtained.
  • the senor by a self-sufficient energy source with energy. This can be dispensed with the supply of energy through fault-prone lines.
  • the invention provides to generate electrical energy from the supplied vibrating energy with the self-sufficient energy source of the sensor. This form of energy is always available when the sensor needs to acquire data. Furthermore, it is provided to equip the sensor with a wireless interface for data exchange. By such a data transmission can also be dispensed with fault-prone lines.
  • the invention provides that the solid, which is detected by the sensor, is a component of the wet concrete.
  • any concrete with a solids content such as sand, gravel or split, is basically suitable for measurements with the sensor.
  • the invention provides for mixing in the moist concrete at least one foreign body which assumes the function of a solid.
  • further statements can be derived from the measured data, taking into account, for example, the exact volume, the exact geometry or the exact weight of the foreign body working as a solid.
  • the invention also provides for the solid to provide a geometry and / or a material which is well detectable by the sensor. This allows more accurate measurements.
  • the invention provides to detect a solid with the sensor whose diameter is between about 0.1 mm and 10 mm. This is a solids size typical for concrete.
  • the inventive method for the production of moldings from wet concrete or related materials provides to capture movement data of at least one present in the wet concrete solid from a sensor during the Hinttelvorgangs. Such a method allows a hitherto impossible detection of the actual Processes in wet concrete in the production of a shaped body.
  • the invention is provided to transmit the movement data wirelessly to an evaluation electronics during the shaking process. As a result, can be dispensed with faulty lines.
  • the method according to the invention also provides for mixing in the evaluation electronics a transmission signal of the microwave transmitter and a reception signal of the microwave receiver and for deriving a modulation from the mixed signal, from which at least one of the motion characteristics can be calculated with which the solid moves or moves in the moist concrete swinging. Such determination of one or more motion characteristics is done with little computational effort and thus in the shortest possible time.
  • the method also provides, by the sensor during the shaking process, also to acquire moisture data, which in particular is transmitted and processed in parallel to the movement data. This makes it possible to increase the meaningfulness of the data obtained.
  • the invention provides, with the sensor during the Rüttelvorgangs successively capture movement data of different solids. This reduces the likelihood of erroneous measurements.
  • a further device according to the invention for monitoring the movement behavior of a material during an energy introduction phase in which an introduction of energy into the material provides the device with at least one sensor through which movement data of at least part of the volume of the material and / or during the energy introduction phase at least one solid contained in the material can be detected.
  • Such immediate observation and detection of movements of at least one solid and / or solid in the material allows optimization of parameters in the production of moldings from the material.
  • the core of the invention is thus a collection of movement data of at least one solid and / or solid.
  • material is to be understood in the sense of claim 36 moist material such as concrete or adhesive or pourable and compressible material such as sand or gravel.
  • a shaped body in the sense of claim 36 for example, a bonding point to understand, which is formed, for example, teardrop-shaped or strip-shaped.
  • production is to be understood as meaning the compacting and / or curing of the material to form a shaped body.
  • Figure 1 is a schematic view of a molding machine in different positions with a device according to the invention.
  • Figure 2 a schematic view of a Device according to the invention in three variants.
  • FIG. 1 shows a schematic view of a molding machine 1 in which a device 2 according to the invention is arranged.
  • the device 2 comprises a sectional shape 3, which has two mold cavities 4 and 5.
  • the mold cavities 4 and 5 are filled with a flowable and hardening mass 6, which is formed in the embodiment of Figure 1 by wet concrete 7.
  • the wet concrete 7 is processed in the molding machine to a molded body K.
  • a respective solid body 8 or 9 located in the moist concrete 7 is illustrated by way of example and not to scale.
  • the mold cavity 4 is rectangular in plan view and is bounded laterally to all four sides by the mold 3.
  • the mold cavity 4 is closed by a punch surface 11 of a punch 12.
  • a belonging to the device 2 sensor 13 is arranged in a pressure piece 14 of the punch 12.
  • the sensor 13 comprises a microwave transmitter 15 and a microwave receiver 16, both of which are embedded in ceramic bodies 17, 18.
  • the ceramic bodies 17, 18 form part of the stamp surface 11 in order to ensure the unimpeded exit and entry of microwaves M.
  • the sensor 13 furthermore has a wireless interface 19, by means of which this data D is transmitted to an evaluation electronic unit 20.
  • Embodiment B has many similarities with Embodiment A described above.
  • a punch 24 is still in a raised position.
  • a sensor 25 is integrated into the mold 3, wherein a microwave transmitter 26 and a microwave receiver 27 are arranged in a wall 28 of the mold cavity 5. From this position, for example, a frequency can be determined with the sensor 25, with which the solid body 9 oscillates, which has a diameter d.
  • the mold 3 consists of a mold base 29 and the stamp 12, 24 form a mold top 30.
  • the sensor 25 is associated with a self-sufficient energy source E, which gains electrical energy from the vibrations introduced into the mold 3 and this in particular with intermediate shuttering an energy storage provides the sensor.
  • FIG. 2 schematically shows three further variants of a device 2 according to the invention.
  • a mold 3 is designed as a formwork 31, which forms a limited to five of six sides mold cavity 32.
  • This mold cavity 32 is filled with a flowable mass 6, in particular a moist concrete 7.
  • a flowable mass 6 in particular a moist concrete 7.
  • a so-called bottle F vibrator 21 which is designed as a hydraulic vibrator 33.
  • the mold 3 are assigned by way of example three sensors 34, 35, 36, which each have a structure which corresponds to the sensors shown and described in FIG.
  • the sensor 34 is disposed on an open side 37 of the mold cavity 32 and directed to a solid 38. Via a data line DL is the sensor 34 with an electronic evaluation 20 connected.
  • the sensor 35 is arranged in the bottle F and connected via a further data line DL with a further evaluation electronics 39.
  • a further evaluation electronics 39 it is provided to program the evaluation electronics 39 such that vibrations generated by the hydraulic shaker 33 are mathematically eliminated in order to determine, for example, the actual frequency of a solid 40.
  • the sensor 36 is arranged in a formwork plate 41 of the formwork 31 and monitors a solid 42 which has been mixed with the wet concrete 7 as a foreign body FK.
  • the sensor 26 is connected to the evaluation electronics 20 via a further data line DL.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

L'invention concerne un dispositif (2) et un procédé de production de corps moulés (K) en béton humide (7) ou en des matériaux de type apparenté, au moyen d'un moule (3) présentant au moins une cavité de moule (4, 5), procédé caractérisé en ce que des vibrations générées par un processus à secousses, sont introduites dans le béton humide (7) qui se trouve dans la cavité de moule (4, 5)
EP07722039A 2006-03-13 2007-03-13 Dispositif et procédé de production de corps moulés en béton humide ou en des matériaux de type apparenté Withdrawn EP1993795A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006011770 2006-03-13
PCT/DE2007/000466 WO2007104293A1 (fr) 2006-03-13 2007-03-13 Dispositif et procédé de production de corps moulés en béton humide ou en des matériaux de type apparenté

Publications (1)

Publication Number Publication Date
EP1993795A1 true EP1993795A1 (fr) 2008-11-26

Family

ID=38254955

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07722039A Withdrawn EP1993795A1 (fr) 2006-03-13 2007-03-13 Dispositif et procédé de production de corps moulés en béton humide ou en des matériaux de type apparenté

Country Status (4)

Country Link
EP (1) EP1993795A1 (fr)
CN (1) CN101400490A (fr)
DE (1) DE102007012549A1 (fr)
WO (1) WO2007104293A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008059528B4 (de) * 2008-11-28 2010-11-04 Hans-Georg Faber Gleitschalungsvorrichtung
ITPR20110058A1 (it) * 2011-06-22 2012-12-23 Betonrossi S P A Dispositivo di formatura di provini in calcestruzzo
CN103862552B (zh) * 2014-03-31 2016-05-11 湖南三一快而居住宅工业有限公司 混凝土预制件生产系统及其振动装置、振动控制方法
EP3240980B1 (fr) 2014-12-30 2018-10-17 Carrier Corporation Système comprenant un bac moulé et un insert en matériau expansé pré-moulé
FR3037844B1 (fr) * 2015-06-26 2017-07-14 Centre D'etudes Et De Rech De L'industrie Du Beton Dispositif de controle en temps reel du fonctionnement d'une presse vibrante produisant des produits en beton a demoulage immediat et installation comprenant un tel dispositif.
CN105904574A (zh) * 2016-04-13 2016-08-31 河南鼎力杆塔股份有限公司 一种智能化横腹杆支柱振动台
WO2018087221A1 (fr) * 2016-11-10 2018-05-17 Windmolders Beton N.V. Procédé et dispositif de fabrication d'une pierre à pavé
CN110466045B (zh) * 2019-08-20 2021-01-05 中国建筑第七工程局有限公司 一种建筑混凝土砌块成型装置

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Publication number Priority date Publication date Assignee Title
DE287224C (fr) 1913-03-11 1915-09-15
JPH0252244A (ja) 1988-08-16 1990-02-21 Toda Constr Co Ltd 骨材の水分量測定方法
DD287224A5 (de) * 1989-08-24 1991-02-21 Th Wismar,De Verfahren zur bestimmung der relativen dichte
JP2001337074A (ja) 2000-05-29 2001-12-07 Ohbayashi Corp フレッシュコンクリートの締固め判定装置
DE20219768U1 (de) 2002-12-20 2003-03-06 KOBRA Formen GmbH, 08485 Lengenfeld Vorrichtung zur Herstellung von Betonformsteinen
WO2005043142A2 (fr) 2003-10-24 2005-05-12 Troxler Electronic Labs, Inc. Procedes et dispositifs de mesurage a micro-ondes de la densite d'un materiau de chaussee
EP1741068B1 (fr) 2004-04-20 2009-05-20 Rampf Formen GmbH Dispositif permettant le controle et la commande ou regulation d'une machine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007104293A1 *

Also Published As

Publication number Publication date
DE102007012549A1 (de) 2007-09-20
WO2007104293A1 (fr) 2007-09-20
CN101400490A (zh) 2009-04-01

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