EP2257415A2 - Dispositif de fabrication de parpaings en béton à vibrations harmoniques par excitation du moule - Google Patents

Dispositif de fabrication de parpaings en béton à vibrations harmoniques par excitation du moule

Info

Publication number
EP2257415A2
EP2257415A2 EP09715186A EP09715186A EP2257415A2 EP 2257415 A2 EP2257415 A2 EP 2257415A2 EP 09715186 A EP09715186 A EP 09715186A EP 09715186 A EP09715186 A EP 09715186A EP 2257415 A2 EP2257415 A2 EP 2257415A2
Authority
EP
European Patent Office
Prior art keywords
vibration
frame
mold
mold insert
board
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.)
Granted
Application number
EP09715186A
Other languages
German (de)
English (en)
Other versions
EP2257415B1 (fr
Inventor
Joerg-Henry Schwabe
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.)
IAB Institut fuer Angewandte Bauforschung Weimar gGmbH
Original Assignee
Institut fuer Fertigteiltechnik und Fertigbau Weimar eV
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 Institut fuer Fertigteiltechnik und Fertigbau Weimar eV filed Critical Institut fuer Fertigteiltechnik und Fertigbau Weimar eV
Priority to PL09715186T priority Critical patent/PL2257415T3/pl
Publication of EP2257415A2 publication Critical patent/EP2257415A2/fr
Application granted granted Critical
Publication of EP2257415B1 publication Critical patent/EP2257415B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
    • B28B1/087—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould
    • 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
    • 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
    • B28B3/04—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 with one ram per mould
    • B28B3/06—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 with one ram per mould with two or more ram and mould sets
    • 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

Definitions

  • the invention relates to a device for shaping mixtures, preferably of amounts of material for stone production by shaping and compression by the action of harmonic vibrations, comprising
  • shock vibration with the very intense compaction effect are faced with a number of significant disadvantages. These consist in the extremely high load of the machine technology and the associated high machine wear and the operating costs, in the high environmental impact with vibrations, and in the extreme noise emission.
  • the harmonic motion functions with the required acceleration amplitudes are generated by various technical methods. It can be assumed that the values of the accelerations in the exciter frequency must at least come to the order of magnitude of the accelerations in the excitation frequency with shock-like vibration action in order to achieve comparable compaction effects.
  • the object of the invention is, while maintaining the method of shaping and compaction of mixtures, preferably concrete quantities in rigid and very stiff consistency for the production of concrete products and paving stones by means of the harmonic vibration action to develop a manufacturing facility, which is characterized by a significant reduction in the loan moving masses and a simplification of the tension, in particular with regard to size of the clamping force.
  • a device for shaping and compacting mixtures preferably of concrete quantities in a stiff to very stiff consistency for the production of concrete blocks and concrete products with immediate shuttering and use of substantially harmonic vibrations, which (i) a replaceable (I) a vibration frame to which the mold insert is non-positively and / or positively connected, (iii) a vibration exciter system attached to the vibration frame, with which the vibrating frame displaces substantially harmonic vibration (iv) comprises a ballast assembly; and (v) a backing board which is pressed against the mold insert from below during vibration.
  • the force required for this purpose is set so that in the state of vibration - ie during the vibration action -vibration frame, mold insert, and base plate form a temporary vibration bandage and perform essentially the same harmonic oscillatory movements.
  • a temporary vibrating bandage is understood to mean that the said three components do not change their relative position relative to one another during the vibration. In this case, the vibrations preferably take place not only with the same amplitude but also with the same phase position.
  • the inventive task of reducing the moving masses is achieved in that the temporary vibrating bandage is formed within the concrete block maker so that the force path between the source of exciter forces - the vibration exciter system - and the amount of concrete to be compacted in the mold insert is reduced to the shortest possible level, by the vibration exciter system acts directly on the mold insert via the vibration frame and initiates the excitation forces directly into the mold. This is eliminated the previously required and due to its rigid design very massive swinging table.
  • the mold insert For the production of concrete blocks and concrete products in various dimensions of the mold insert is designed as a detachable from the vibrating frame component. Depending on the product to be manufactured, the respectively required mold insert is placed in the vibration frame and i. A. non-positively and / or positively connected thereto.
  • the oscillatory capability of the molded insert with the vibrating frame and the vibration exciter system attached to it is achieved by an elastic mounting on vibrating frame springs, via which the vibrating frame is connected elastically to a frame-fixed machine frame.
  • the vibration frame springs thus simultaneously take over the vibration isolation with respect to the machine frame.
  • the vibration frame can then oscillate freely with vibration excitation as part of the temporary vibration bandage - vibration frame, mold insert, and base board vibrations with the same amplitude and the same phase.
  • the backing plate follows by a resilient contact with the mold bottom by means of spring elements of the oscillatory motion of the mold and ensures a secure closure of the mold chambers during the harmonic vibration.
  • the device therefore comprises a Bretthubbauè, which comprises one or more Bretthubzylinder and a Bretthub, wherein the base board is elastically connected via board springs to the Bretthub, and wherein the backing board during vibration by a applied by the Bretthubzylinder such contact force the mold insert is pressed, (i) molding chambers are closed downwardly and relative movement between the mold insert and the backing board is precluded, and (ii) mold insert and backing board perform a synchronous movement while the board lifting assembly remains in a frame-fixed position.
  • a Bretthubbauè which comprises one or more Bretthubzylinder and a Bretthub
  • the base board is elastically connected via board springs to the Bretthub, and wherein the backing board during vibration by a applied by the Bretthubzylinder such contact force the mold insert is pressed, (i) molding chambers are closed downwardly and relative movement between the mold insert and the backing board is precluded, and (ii) mold insert and backing board perform a synchronous movement while the board lifting assembly remains in a frame-fixed position.
  • the embarken comprises a ballast, a load cylinder and one or more (2004)lastfedern, wherein the Auflasthubzylinder frame fixed to a machine frame, wherein the ballast is elastically connected via the Auflastfedern with the frame-fixed part of the ballast assembly, and wherein the lift-up cylinder presses the load during the vibration with such a force on the surface of the mixture to be compacted that (i) no lifting of the load of the Surface of the batch takes place and (ii) the surcharge on the elastic attachment with the default springs follows the movements of the surface of the batch. Upwards, each mold chamber is then temporarily closed during the harmonic vibration by a respective load plate. All load plates are combined as an assembly and form the load group.
  • the attached to the vibration frame vibration exciter system is designed in mirror-symmetrical design to a vertical center plane formed by the vertical center of the mold and is dynamically preferably operated so that the mold is subjected to the compacted concrete amount with a directed vertical vibration. But horizontal vibration components are possible.
  • the inventive task of simplifying the bracing, in particular with regard to the size of the bracing force is achieved in that it is omitted in the previous function. Because of the direct application of force in the vibrating frame with mold insert a strain between unbalance exciter and mold insert, which opens and closes for the demoulding in the clock cycle, no longer required.
  • the temporarily secure connection of the base plate with the mold during the harmonic vibration is achieved by a Bretthub engaged Bretthubzylinder that moves the backing board from below against the mold insert. Because of the much smaller oscillating mass of the backing board including proportionate batch mass in relation to the moving masses in previous solutions from the prior art significantly smaller forces for the temporary installation of the base plate to the form are required to be applied by the Bretthubzylinder or .
  • the board springs ensure the movement of the backing board with the mold and its permanent abutment against the bottom of the mold.
  • the vibration is set to zero, which can be achieved by switching off or by power-free operation z. B. can be reached in a four-shaft arrangement.
  • the shuttering is carried out by a synchronous movement of the Bretthubzylinders and Auflasthubzylinders down, the shape maintains its position.
  • the vibration exciter system comprises a single-wave unbalance exciter, i. a pair of unbalance exciter shafts or torsionally coupled unbalanced vibration strands which are mirror-symmetrically installed on the vibrating frame with respect to the vertical center plane of the mold and operate in opposite directions with equal speed and mirror-symmetrical phase relation to the vertical center plane of the mold.
  • a single-wave unbalance exciter i. a pair of unbalance exciter shafts or torsionally coupled unbalanced vibration strands which are mirror-symmetrically installed on the vibrating frame with respect to the vertical center plane of the mold and operate in opposite directions with equal speed and mirror-symmetrical phase relation to the vertical center plane of the mold.
  • vertically directed harmonic oscillations are excited.
  • the vibration exciter system comprises an unbalance exciter pair in a double-shaft arrangement or in a four-shaft arrangement, i. a pair of mirror symmetrically mounted and driven double or quadruple unbalance exciter shafts or torsionally coupled unbalanced vibration strands which both produce a directed harmonic vibration effect on the mold and in an advantageous further development as an imbalance exciter with coaxial waveguide misalignment an adjustment of the acting resultant exciter force amplitude during the Vibration action continuously between zero and a maximum by pairwise synchronous An the phase position between the corresponding unbalanced shafts allow.
  • This feature allows, for example, a zero exciter power up the speed from zero to the operating speed, without Schwingwegüberhöhungen when passing through the rigid body natural frequencies. Furthermore, a continuous operation of this vibration exciter system is possible in which the resulting excitation force amplitude is set to zero during the clock change by a phase angle adjustment, without having to set the drive speed of the unbalanced shafts to zero. By dispensing with the ramp-up and ramp-down speed, short cycle times are possible. By changing the phase position in the operating frequency, the exciter force amplitudes determined as favorable for the compression can be set. A comparable functionality of the vibration excitation is achieved when using an adjustment excitation system according to DE 197 35 268.
  • a further embodiment of the invention consists in the application of a force-excited vibration drive via hydraulic, pneumatic or piezoelectric actuators, the vibration frame with mold insert as a single drive or in a mirror-symmetrical Move arrangement with respect to the vertical shape center plane in vertical harmonic oscillations. Because of the lower excitation forces in comparison to the harmonic vibration of the prior art, smaller components can be used here as units of purchase.
  • the Bretthubbaue expediently performs a lifting movement, which is at least as large as the height of the finished compacted and deactivated product.
  • vibration frame and mold insert perform such a large stroke movement.
  • a further development of the invention also utilizes a vibration excitation on the base board.
  • an auxiliary swinging table with an auxiliary vibration exciter system is mounted between the board lift and the base board.
  • additional vibrations are introduced into the mixture, which are coordinated with the vibration excitation on the vibration frame.
  • the mold insert and the board each have their own excitation system, which is necessary for their harmonic oscillatory movement.
  • the excitation systems are coordinated via a controller. So only small forces between mold insert and base plate are exchanged.
  • FIG. 2 variants for vibration exciter systems on the vibration frame
  • FIG. 1 the basic structure of a device for shaping of mixtures, in particular for the production of concrete blocks is shown.
  • the device comprises a replaceable mold insert (4) for receiving the mixture to be compacted (17), a vibrating tion frame (5) to which the mold insert (4) is non-positively and / or positively connected, attached to the vibration frame (5) vibration exciter system with which the vibration frame (5) is placed in substantially harmonic vibration, a ballast assembly and a Underlay board (7), which is pressed during vibration from below to the mold insert (4), so that vibration frame (5), mold insert (4), and backing board (7) form a temporary vibration bandage and perform substantially the same swinging movements ,
  • the vibration exciter are generally mounted in a mirror-symmetrical arrangement to the mold center plane, in the simplest case an unbalance exciter pair in single-shaft arrangement (11) is sufficient.
  • the vibration frame (5) is the component that transmits the vibrations from the vibration source - the vibration exciters - to the mold insert (4) with the mixture (17) to be compacted therein. Due to the vibration requirements, it ensures the rigidity of the vibration band, consisting of vibration frame (5) with vibration exciters attached to it, the mold insert (4) as well as the base (7) and load (2).
  • the vibration frame thus fulfills the same function as the vibration table and the mold frame of a technical solution according to the prior art. Due to the short force path and the compact design, the moving mass of the solution according to the invention is advantageously much lower in comparison to known solutions such as in DE 20301954. This is associated with a significant reduction of the excitation forces while achieving equal acceleration amplitudes for the shaping and compression of the batch ,
  • the backing board (7) is pressed after its transfer into the position shown with the Bretthubbauè consisting of Bretthubzylinder (10), Bretthub (8) and board springs (9) against the vibration of the mold insert (4).
  • the elastic connection between the backing board (7) and board stroke (8) via the board springs (9) together with a sufficient applied by the Bretthubzylindern (10) contact force ensures the mobility of the backing board (7) during the vibration without it from the mold insert (4 ) takes off. It follows during the vibration action of the movements of the mold insert (4) and closes the mold chambers down.
  • the necessary contact forces for a permanent contact during vibration are essentially dependent on the mass of the underlay board (7) and the acceleration amplitudes on the underlay board (7).
  • a further advantage of the invention is that the necessary clamping forces between vibrational and shaping components - ie according to the invention between vibration frame (5) with mold insert (4), vibration exciter and underlay board (7) - because of the much lower mass of the backing board (7) compared to the known masses of components to be braced in the journal "Concrete Plant + Precast Technology 22, No. 27, pages 22 to 27, and DE 20301954. They can be produced without problems by the illustrated board lifting subassembly with the board lifting cylinders (10) The board springs (9) also have the same effect Function of the vibration isolation compared to the frame-fixed environment.
  • the mixture to be compacted (17) is filled before the start of vibration. Thereafter, the on-load assembly, consisting of lift-lift cylinder (1) and over-load (2), lowers until the load plates press on the mix surface.
  • the preload springs (3) ensure the movement of the ballast (2) during the vibration and the vibration isolation to the machine frame.
  • the vibrating frame (5) with mold insert (4) remains in its position, unlike the prior art, which is advantageous for vibration exciter and filling car. Due to the fixed position of the vibration frame (5) with mold insert (4) eliminates the Formhub observed from the prior art, which had to lift during the demoulding relatively high masses.
  • the demoulding takes place in the solution according to the invention by the board stroke with smaller masses to be moved, with ballast movement and Bretthub proceed in a coordinated manner. If required, a decoupling by Formhub is still possible, in which case the backing board (7) can remain in its position.
  • Fig. 2 shows design variants of the vibration frame (5) with attached vibration exciters and mold insert (4).
  • the vibration exciter system may consist of rotating unbalance systems, which are mounted in pairs on the sides and synchronized z. B. with the help of an electronic control.
  • the vibration generation can also be done by means of dynamically operating hydraulic, pneumatic, electrical or piezoelectric actuators (15).
  • Fig. 3 shows an exemplary solution of the connection between the vibrating frame (5) and mold insert (4). This play-free connection can be done mechanically by means of screwing or by means of wedge-shaped clamping elements (16), such as a clamping plate, whereby hydraulic actuators can also be used.
  • Fig. 4 shows the device in a structurally extended embodiment.
  • the auxiliary oscillating table (19) has an auxiliary vibration excitation system (20) which serves for the coordinated movement of the underlay board (7) relative to the movement of the vibrating frame (5) with mold insert (4).
  • a control (21) both movements are coordinated so that the backing board (7) during the vibration always on the bottom of the mold insert (4) is applied and at the same time the required pressure forces are minimized.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)

Abstract

L'invention concerne un dispositif de moulage de masses, notamment de masses de béton, pour la fabrication de parpaings et de produits en béton par moulage et compactage par application de vibrations harmoniques. Le dispositif comporte un moule pourvu d'un cadre vibrant (5) et d'un insert de moule (4) pour recevoir la masse à compacter (17); un système vibrant (11) se trouvant en contact avec le moule; des ressorts de cadre vibrant (6) destinés à loger de façon oscillante le moule et le système vibrant (11) fixé au moule; une plaque support (7) pour recevoir les produits à fabriquer; un module de levage de plaque comportant des cylindres de levage de plaque (10) et un système de levage de plaque (8); des ressorts de plaque (9) pour l'avancement et le logement mobile de la plaque support (7) sur le côté inférieur du moule lors de l'application des vibrations; un module de charge comportant une charge (2) pour le moulage de la surface du produit à fabriquer; des ressorts de charge (3) pour le logement mobile de la charge (2) lors de l'application des vibrations; et un système de levage de charge pour exercer des mouvements d'avancement et de décoffrage. Le composant de moulage de l'ensemble oscillant est l'insert de moule (4) conçu en tant que module séparable de telle manière qu'un changement de produit ne requiert qu'une transformation minime. La fabrication des produits est réalisée sur des plaques supports connues (7) de telle manière que le dispositif selon l'invention peut être intégré à des installations de fabrication connues.
EP09715186.4A 2008-02-26 2009-02-25 Dispositif de fabrication de parpaings en béton à vibrations harmoniques par excitation du moule et procédé de mise en forme et compactage de mélanges de béton Active EP2257415B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09715186T PL2257415T3 (pl) 2008-02-26 2009-02-25 Urządzenie do wytwarzania cegieł betonowych z wibracją harmoniczną przez wzbudzanie formy oraz sposób formowania i zagęszczania mieszanin betonowych

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008011272A DE102008011272A1 (de) 2008-02-26 2008-02-26 Betonsteinfertiger mit harmonischer Vibration durch Formerregung
PCT/EP2009/001317 WO2009106297A2 (fr) 2008-02-26 2009-02-25 Dispositif de fabrication de parpaings en béton à vibrations harmoniques par excitation du moule

Publications (2)

Publication Number Publication Date
EP2257415A2 true EP2257415A2 (fr) 2010-12-08
EP2257415B1 EP2257415B1 (fr) 2013-04-10

Family

ID=40896777

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09715186.4A Active EP2257415B1 (fr) 2008-02-26 2009-02-25 Dispositif de fabrication de parpaings en béton à vibrations harmoniques par excitation du moule et procédé de mise en forme et compactage de mélanges de béton

Country Status (5)

Country Link
EP (1) EP2257415B1 (fr)
DE (1) DE102008011272A1 (fr)
DK (1) DK2257415T3 (fr)
PL (1) PL2257415T3 (fr)
WO (1) WO2009106297A2 (fr)

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CN102009429A (zh) * 2010-06-12 2011-04-13 中山建华管桩有限公司墙体材料分公司 一种制作轻质混凝土墙板用的振动设备
CN102225582A (zh) * 2011-05-27 2011-10-26 王本淼 一种制作组合空腹构件用机制模具系统
CN103507143B (zh) * 2012-06-29 2015-10-28 泉州市三联机械制造有限公司 自保温砌块成型机
CN103341903A (zh) * 2013-07-11 2013-10-09 宜兴市中环耐火材料有限公司 空气压力机
CN103612319B (zh) * 2013-10-21 2016-03-09 刘亦宽 连锁砌块成型机
CN103722606A (zh) * 2014-01-17 2014-04-16 葛恒闯 模箱振动式砌块成型装置
CN105856381B (zh) * 2015-01-20 2020-11-03 杨绍良 一种带有基座的合成石成型机
CN106853657A (zh) * 2017-02-24 2017-06-16 南通市恒达机械制造有限公司 一种砖坯批量高效成型机
CN109016081B (zh) * 2018-09-07 2024-04-12 佛山市石湾陶瓷工业研究所有限公司 冲压装置和粉末冲压生产系统
CN109469348B (zh) * 2018-11-06 2021-06-04 严园妹 一种环保拼装墙体压制机
CN111702923A (zh) * 2020-06-12 2020-09-25 赣州智晟知识产权咨询服务有限公司 一种稀土氧化物生产用压型方法及其设备
CN112078090B (zh) * 2020-09-03 2022-06-24 临朐县大地汽车零部件有限公司 一种通用工程塑料注塑成型脱模方法
CN113899604A (zh) * 2021-09-17 2022-01-07 中国人民解放军63653部队 一种振动压实仪
CN115674401A (zh) * 2022-11-09 2023-02-03 浙江艾卡蒙特环保科技有限公司 一种环保砖砖坯成型设备
CN115805723A (zh) * 2022-11-29 2023-03-17 萍乡市路盟环保新材料研发中心有限公司 一种球形催化剂的成型降温设备

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Also Published As

Publication number Publication date
WO2009106297A3 (fr) 2009-11-05
WO2009106297A2 (fr) 2009-09-03
EP2257415B1 (fr) 2013-04-10
DK2257415T3 (da) 2013-07-01
DE102008011272A1 (de) 2009-08-27
PL2257415T3 (pl) 2013-09-30

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