EP1050393A2 - Dispositif de production de vibrations pour moule - Google Patents

Dispositif de production de vibrations pour moule Download PDF

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Publication number
EP1050393A2
EP1050393A2 EP00107426A EP00107426A EP1050393A2 EP 1050393 A2 EP1050393 A2 EP 1050393A2 EP 00107426 A EP00107426 A EP 00107426A EP 00107426 A EP00107426 A EP 00107426A EP 1050393 A2 EP1050393 A2 EP 1050393A2
Authority
EP
European Patent Office
Prior art keywords
vibrating
vibration
drive according
vibration exciter
support
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
EP00107426A
Other languages
German (de)
English (en)
Other versions
EP1050393B1 (fr
EP1050393A3 (fr
Inventor
Rudolf Braungardt
Erwin Schmucker
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.)
Kobra Formen GmbH
Original Assignee
Kobra Formen und Anlagenbau GmbH
Kobra 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 Kobra Formen und Anlagenbau GmbH, Kobra Formen GmbH filed Critical Kobra Formen und Anlagenbau GmbH
Publication of EP1050393A2 publication Critical patent/EP1050393A2/fr
Publication of EP1050393A3 publication Critical patent/EP1050393A3/fr
Application granted granted Critical
Publication of EP1050393B1 publication Critical patent/EP1050393B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • B28B1/0873—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould the mould being placed on vibrating or jolting supports, e.g. moulding tables
    • 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

Definitions

  • the invention relates to a vibratory drive for a mold, especially for the production of concrete moldings based on set down a vibrating table and with flowable concrete is filled.
  • eccentric and Unbalance motors are used which the vibrating table of Set the molding machine in vibration. This will make the form lying on the vibrating table, open at the top and bottom also vibrated and shaken to the in the molds filled in concrete mass as evenly as possible to condense. During the shaking process, the open one Top of the mold using vertically movable Pressure plates that dip into the mold cavities from above and press on the concrete mass, closed.
  • a disadvantage of these known designs is that the mechanical unbalance motors largely uncontrolled Generate vibrations that cause damage and premature Signs of wear of the form lead. Out For this reason, the shape and vibrating table must be very stable and so that it is more complex to build. In addition, machine and Shape often not in terms of vibration optimally coordinated. The same applies to the concrete mass poured into the mold, which depending on the type, Volume, grain size, moisture, specific weight, etc. different vibration parameters, e.g. Vibration frequency, Vibration period, vibration path, vibration direction etc. required. Such voting errors result to an uneven filling of the mold nests and an uneven compression of the concrete mass within the form. The result of this is poor quality of the finished moldings. The more dimensioned shape and the Relatively heavy vibrating tables also require a substantial amount higher vibration energy.
  • DE-OS 38 37 686 is a spatial vibration system became known in which a form filled with concrete mass for the production of concrete moldings in resonance vibration is held.
  • the parameters stiffness and Damping of the suspension springs sampled and the resonance frequency of the vibration system and measured in a microprocessor supervised. As soon as the resonance frequency is exceeded or fallen below will be corrected accordingly Change the suspension spring parameters to the vibration system to keep at the desired resonance frequency. Thereby should be optimal vibration conditions with low input power be created.
  • the invention has for its object a vibratory drive of the kind mentioned at the beginning, to create the corresponding the different requirements of practice simple way is adjustable to an optimal Vibration behavior of the form and thus high quality to ensure the end product.
  • the object is achieved in that the vibratory drive consists of at least one piezoelectric, Vibration exciter exists, the fixed part with the machine frame and the vibrating part with the vibrating table connected is.
  • the vibration exciter can be connected to a path translator his.
  • the path translator is characterized in that on the piezo element Piston is attached via a hydraulic fluid with a second, smaller or larger piston in drive connection stands, with the second piston on the vibrating part the vibration exciter is attached.
  • the Downward movement of the second piston caused by the suction force of the first piston is caused by a Return spring are supported.
  • the piezo element of the vibration exciter advantageously consists made of ceramic.
  • the shape is square in the four corner areas Vibration table one vibration exciter with vertical Swing direction arranged.
  • the four corner areas allow for directions of vibration one vibration exciter each of the vibrating table arranged, the longitudinal axis, which simultaneously the Vibration direction is, with the horizontal and the vertical encloses an angle.
  • The is preferably 45 ° angle.
  • a prerequisite for the spatial swinging of the form is that the vibration exciter via spherical bearings with the Vibrating table and / or connected to the machine frame are.
  • the bearings preferably consist of ball joints.
  • the parameters of the vibratory drive such as the oscillation frequency and / or oscillation period and / or oscillation path and / or Direction of vibration and / or the number of activated Vibration exciter changeable.
  • the vibrators are for this purpose connected to a microprocessor, the one or several preselectable programs for setting the contains the required parameter sizes of the vibratory drive.
  • the vibration exciters controllable individually or in groups.
  • the advantages achieved with the invention are in particular in that the inventive installation of piezoelectric Vibration exciters offers the possibility of Vibration drive so the different operating conditions adapt that depending on the product always an optimal filling and compaction of the concrete mass and thus a good quality of the product is guaranteed.
  • the replacement of the conventional, complex unbalance motors by the inventive Piezoelectric vibratory drive does it possible, the desired excitation frequency immediately and on relatively easy way to generate. The required Vibration energy and noise pollution are reduced.
  • the conventional vibration method between vibrating table and vibrating table frame arranged vibrating metal bearings that a large part of the Absorb excitation frequency in the embodiment according to the invention omitted. Because the vibration exciter at the same time also serve to support the vibrating table underneath the form there is a free space, for example for the Retracting mold cores or recess bodies into the Form can be used.
  • a molding machine 1 for the production of concrete moldings consists of a machine frame 2 with four vertical Guide columns 3, which at their upper end by a Plate 4 are interconnected (Fig. 1).
  • a mold support plate 5 On the Guide columns 3 is a mold support plate 5 with a shape 6, which carries open top and bottom mold nests 7, vertically movably mounted.
  • Via hydraulic cylinders, not shown the form 6 can be moved up and down in a known manner and on a vibrating table 8 or one on the vibrating table lying board 8 'removable.
  • the form 6 can be moved up and down in a known manner and on a vibrating table 8 or one on the vibrating table lying board 8 'removable.
  • At the bottom of the rectangular Vibrating table 8 is in the four corner areas a vibrating part 9 of a piezoelectric ceramic Vibration exciter 10 attached, the fixed part 11 is connected to the machine frame 2.
  • At the bottom of the rectangular stamp plate 13 is in each of the four A vibration exciter 10 with its fixed corner areas Part 11 attached while the vibrating part 9 with a holding plate 14 is connected.
  • a plurality of pressure plates 15 are arranged each assigned to the individual shape nests 7 of shape 6 are.
  • Each vibration exciter 10 has a known one Piezo element 16 in the form of a ceramic plate on the in the stationary part 11 of the housing Vibration exciter 10 freely clamped and with an electrical alternating voltage can be applied (Fig. 3).
  • a piston 17 is fixed, however interchangeably connected in one with hydraulic fluid filled cylinder space 18 of the fixed part 11 is guided vertically movable.
  • a second cylinder space 18 ' also closes at the top a smaller diameter.
  • a second piston 19 is vertical flexibly guided. The second, opposite the first piston 17 smaller diameter piston 19 is with the vibrating part 9 of the vibration exciter 10 firmly connected.
  • the pistons 17 and 19 form a hydraulic path intensifier, with which the oscillation path of the form opposite the oscillation deflection of the piezo element 16 enlarged or reduced can be. Since the second in the embodiment Piston 19 has a smaller diameter than piston 17 the swing path of the mold is increased.
  • the vibration exciter 10 is operated without a translator, this eliminates the hydraulic fluid in the cylinder rooms 18, 18 'and between the two pistons 17 and 19 there is a fixed connection. In this case, the Swinging movements of the piezo element 16 in both directions transferred directly to the vibrating part 9.
  • the return spring 20 can be omitted.
  • Fig. 4 of the drawing shows an embodiment of the Invention in which the vibration exciter 10 is not vertical, but at a spatial angle to the horizontal and are arranged to the vertical.
  • the Machine frame 2 in the corner areas four brackets 21 on, at the upper ends 22 each of the fixed Part 11 of the vibration exciter 10 is attached.
  • the Vibration part 9 of the vibration exciter 10 is on the corresponding Mounting plates 23 of the vibrating table 8 articulated.
  • the upper ends 22 of the brackets 21 are downward in this way angled that when attaching the vibration exciter 10 its longitudinal axis 12, which is also the direction of vibration of the vibrating part 9 is under a spatial Angle ⁇ of 45 ° to the vertical and the horizontal runs.
  • FIG. 5 is a schematic block diagram of a Electronic control of the vibration exciter 10 shown.
  • frequency controllers 25 which have a Microprocessor 26 can be controlled in a known manner the vibration frequency of the individual vibration exciters 10, for example depending on the type of mold nests 7 filled concrete mass, are changed.
  • Others too Parameters of the vibratory drive e.g. Period of oscillation, Vibration path, vibration direction and number of activated Vibration exciters can be selected accordingly
  • Computer programs in a known manner from the microprocessor 26 can be controlled automatically. For example an asymmetrical shaped concrete body, e.g. B. with a angular cross-section, are made so located a larger amount on one side of the mold nest 7 Concrete mass than on the opposite side.
  • a greater vibration energy be used. This can be achieved be that in the embodiment of FIG. 4, for example only one or both vibrators 10 that are on side of the larger concrete mass are activated and the other vibration exciters not or with one smaller oscillation frequency can be operated. This leaves the vibration direction and the vibration path in the change the way you want.
  • the Vibrating table 8 consists of three parallel, longitudinally spaced side rails 27, which form a vibrating frame 28.
  • the vibrating frame 28 is fixed to the vibrating parts 9 of the vibration exciter 10 connected and has three attached to the longitudinal beams 27 Vibrating bars 29 on.
  • the vibrating bars 29 run across the longitudinal beams 27 and are spaced from each other.
  • the tops of the vibrating bars 29 form a common one Vibrating level 30, which is slightly below a support level 31 for the form board 8 '.
  • the support ledges 32 are parallel to the support body 33 with four the side members 27 of the vibrating frame 28 extending Carriers 34 of a support frame 35 connected, the is located below the vibrating frame 28 and on the machine frame 2 is attached. The order is made that each between a pair of support strips 32, the Support body 33 passed down through the vibrating frame 28 a vibrating bar 29 is arranged, the longitudinal members 27 of the vibrating frame 28 between the carriers 34 and the transverse support strips 32 are located. The tops of the support strips 32 form the support plane 31 for the form board 8 '.
  • the vibrating bars become 29 by the vibration exciter 10 corresponding to the Vibrating frequency moves up and down.
  • the vertical distance between the vibration level 30 and the support level 31 chosen that the vibrating bars 29 in their uppermost position hit the bottom of the form board 8 'and so that the desired tapping effect on the form 6 produce.
  • the distance between the vibrating level 30 and the support level can be 31 in a known manner, for example by a Height adjustment of the vibrating bars 29 can be changed. That means, for example, with a larger one Vibration amplitude also the distance between the levels 30 and 31 must be larger.
  • the vibrating device according to the invention according to FIGS. 6 and 7 has the advantage that the knocking effect of the vibrating bars 29 under certain conditions, for example at a little moisture in the concrete, a better one Compaction and a reduction in vibrator time achieved becomes. Due to the grid-like construction of the vibrating frame 28 and the support frame 31 can concrete residues unhindered fall down. This increases the risk of contamination the molding machine significantly reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
EP00107426A 1999-05-07 2000-04-06 Dispositif de production de vibrations pour moule Expired - Lifetime EP1050393B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19921145 1999-05-07
DE19921145A DE19921145B4 (de) 1999-05-07 1999-05-07 Rüttelantrieb für eine Form
US09/564,035 US6342750B1 (en) 1999-05-07 2000-05-04 Vibration drive for a mold

Publications (3)

Publication Number Publication Date
EP1050393A2 true EP1050393A2 (fr) 2000-11-08
EP1050393A3 EP1050393A3 (fr) 2002-11-13
EP1050393B1 EP1050393B1 (fr) 2007-09-26

Family

ID=26053268

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00107426A Expired - Lifetime EP1050393B1 (fr) 1999-05-07 2000-04-06 Dispositif de production de vibrations pour moule

Country Status (7)

Country Link
US (1) US6342750B1 (fr)
EP (1) EP1050393B1 (fr)
AT (1) ATE374096T1 (fr)
CA (1) CA2305483A1 (fr)
DE (2) DE19921145B4 (fr)
DK (1) DK1050393T3 (fr)
ES (1) ES2289981T3 (fr)

Cited By (6)

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Publication number Priority date Publication date Assignee Title
DE10351177A1 (de) * 2003-11-03 2005-06-02 Albert Handtmann Metallgusswerk Gmbh & Co. Kg Verfahren und Vorrichtung für ein dreidimensionales Vibrationssystem für Gießbehälter beim Lost-Foam-Gießverfahren
DE102006018810A1 (de) * 2006-04-22 2007-10-25 Kobra Formen Gmbh Vorrichtung zur Herstellung von Betonformsteinen mit einer Rütteleinrichtung und Aktuator
CN101554746B (zh) * 2009-05-19 2010-12-08 靳卫强 砌块成型机
CN101941234A (zh) * 2010-09-27 2011-01-12 泉州市祥达机械制造有限公司 一种砌块压制成型方法及其设备
CN103302723A (zh) * 2013-07-05 2013-09-18 中铁三局集团有限公司 吸附式预制桥梁底模振动台车
CN111673870A (zh) * 2020-06-24 2020-09-18 中电建成都建筑工业化有限责任公司 一种混凝土构件加工智能振动台

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ATE253023T1 (de) * 2000-12-22 2003-11-15 Freni Brembo Spa Verfahren zur herstellung einer bremsscheibe mit belüftungskanälen, und nach genanntem verfahren erhaltene bremsscheibe
US6864297B2 (en) * 2002-07-22 2005-03-08 University Of Southern California Composite foam made from polymer microspheres reinforced with long fibers
DE20219768U1 (de) * 2002-12-20 2003-03-06 KOBRA Formen GmbH, 08485 Lengenfeld Vorrichtung zur Herstellung von Betonformsteinen
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ATE431955T1 (de) * 2004-04-20 2009-06-15 Rampf Formen Gmbh Vorrichtung zur überwachung und steuerung bzw. regelung einer maschine
NL2005171C2 (nl) * 2010-07-29 2012-01-31 Boer Staal Bv Den Inrichting voor het verdichten van korrelvormige massa zoals betonspecie.
CN104441201B (zh) * 2014-10-30 2016-06-29 西安交通大学 一种双向同步振压式振动压砖机
CN105382996B (zh) * 2015-12-02 2017-11-14 武汉凯尔信汽车零部件有限公司 一种嵌件自动送料与注塑一体化复合模具
CN108356957B (zh) * 2018-02-08 2023-08-29 山东城际轨道交通科技有限公司 上下谐振真空施压水泥基复合板材成型设备
CN108582424A (zh) * 2018-06-11 2018-09-28 泉州利达机器有限公司 一种环保型陶瓷压砖机
US11034053B2 (en) * 2019-06-03 2021-06-15 Besser Company Concrete product machine apron plate gap adjustment
DE102019120939B4 (de) * 2019-08-02 2021-12-23 Sonocrete GmbH Verfahren zum Bereitstellen einer Zementsuspension durch einen Zementvormischer und ein Verfahren zum Mischen von Beton oder Mörtel
CN111687993B (zh) * 2020-06-17 2021-10-19 中建二局第四建筑工程有限公司 混凝土振动台
CN111844364B (zh) * 2020-08-17 2025-04-25 南阳市百斯特液压机械有限公司 一种水泥地板压布抹一体生产系统
CN111873167B (zh) * 2020-08-17 2025-04-25 南阳市百斯特液压机械有限公司 一种水泥地板自动化生产线
CN114800845B (zh) * 2021-04-26 2023-05-26 福建江夏学院 土木工程试验室水泥泵送浇模装置及方法
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CN117359750B (zh) * 2023-12-08 2024-04-05 莆田中建建设发展有限公司 一种超厚混凝土构件施工装置及其施工工艺
CN118238259B (zh) * 2024-05-29 2024-07-30 洛阳市方山耐火材料有限公司 致密硅砖压制成型设备
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10351177A1 (de) * 2003-11-03 2005-06-02 Albert Handtmann Metallgusswerk Gmbh & Co. Kg Verfahren und Vorrichtung für ein dreidimensionales Vibrationssystem für Gießbehälter beim Lost-Foam-Gießverfahren
DE10351177B4 (de) * 2003-11-03 2005-09-15 Albert Handtmann Metallgusswerk Gmbh & Co. Kg Verfahren und Vorrichtung für ein dreidimensionales Vibrationssystem für Gießbehälter beim Lost-Foam-Gießverfahren
DE102006018810A1 (de) * 2006-04-22 2007-10-25 Kobra Formen Gmbh Vorrichtung zur Herstellung von Betonformsteinen mit einer Rütteleinrichtung und Aktuator
CN101554746B (zh) * 2009-05-19 2010-12-08 靳卫强 砌块成型机
CN101941234A (zh) * 2010-09-27 2011-01-12 泉州市祥达机械制造有限公司 一种砌块压制成型方法及其设备
CN101941234B (zh) * 2010-09-27 2011-12-21 泉州市祥达机械制造有限公司 一种砌块压制成型方法及其设备
CN103302723A (zh) * 2013-07-05 2013-09-18 中铁三局集团有限公司 吸附式预制桥梁底模振动台车
CN103302723B (zh) * 2013-07-05 2016-06-01 中铁三局集团有限公司 吸附式预制桥梁底模振动台车
CN111673870A (zh) * 2020-06-24 2020-09-18 中电建成都建筑工业化有限责任公司 一种混凝土构件加工智能振动台

Also Published As

Publication number Publication date
ATE374096T1 (de) 2007-10-15
DE19921145A1 (de) 2000-11-09
US6342750B1 (en) 2002-01-29
DE50014669D1 (de) 2007-11-08
DE19921145B4 (de) 2008-01-10
EP1050393B1 (fr) 2007-09-26
CA2305483A1 (fr) 2000-11-07
EP1050393A3 (fr) 2002-11-13
ES2289981T3 (es) 2008-02-16
DK1050393T3 (da) 2007-11-19

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