EP1050393A2 - Rüttelantrieb für eine Form - Google Patents
Rüttelantrieb für eine Form Download PDFInfo
- 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
Links
- 238000000465 moulding Methods 0.000 claims description 12
- 230000033001 locomotion Effects 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 230000009969 flowable effect Effects 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 7
- 238000005056 compaction Methods 0.000 description 5
- 230000005284 excitation Effects 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000009365 direct transmission Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
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)
Abstract
Description
- Fig. 1
- eine perspektivische Ansicht einer Formmaschine mit einem Rüttelantrieb für eine vertikal schwingende Form,
- Fig. 2
- eine Vorderansicht der Formmaschine nach Fig. 1,
- Fig. 3
- einen Längsschnitt durch einen Schwingungserreger in vergrösserter Darstellung,
- Fig. 4
- eine perspektivische Ansicht einer Formmaschine mit einem Rüttelantrieb für eine räumlich schwingende Form,
- Fig. 5
- ein schematisches Blockschaltbild der elektronischen Schwingungserreger-Steuerung,
- Fig. 6
- eine Vorderansicht der Formmaschine mit einer anderen Ausführungsform der Erfindung und
- Fig. 7
- einen Schnitt gemäss der Linie VII - VII in Fig. 6.
Claims (20)
- Rüttelantrieb für eine Form, insbesondere zur Herstellung von Betonformkörpern, die auf einen Rütteltisch abgesetzt und mit fliessfähigem Beton gefüllt wird, dadurch gekennzeichnet, dass der Rüttelantrieb aus mindestens einem piezoelektrischen Schwingungserreger (10) besteht, dessen feststehendes Teil (11) mit dem Maschinengestell (2) und das Schwingteil (9) mit dem Rütteltisch (8) verbunden ist.
- Rüttelantrieb nach Anspruch 1, dadurch gekennzeichnet, dass das Schwingteil (9) des Schwingungserregers (10) mit einem Piezoelement (16) in Verbindung steht, das im feststehenden Teil (11) des Schwingungserregers (10) frei schwingbar eingespannt ist.
- Rüttelantrieb nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Schwingungserreger (10) mit einem Wegübersetzer verbunden ist.
- Rüttelantrieb nach Anspruch 3, dadurch gekennzeichnet, dass am Piezoelement (16) ein Kolben (17) befestigt ist, der über eine Hydraulikflüssigkeit mit einem zweiten, grösseren oder kleineren Kolben (19) verbunden ist, wobei der zweite Kolben (19) am Schwingteil (9) des Schwingungserregers (10) befestigt ist.
- Rüttelantrieb nach Anspruch 4, dadurch gekennzeichnet, dass die Abwärtsbewegung des Kolbens (19) durch eine Rückholfeder (20) unterstützt wird.
- Rüttelantrieb nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das Piezoelement (16) des Schwingungserregers (10) aus Keramik besteht.
- Rüttelantrieb nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass in den vier Eckbereichen des Rütteltisches (8) je ein Schwingungserreger (10) mit vertikaler Schwingrichtung angeordnet ist.
- Rüttelantrieb nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass in den vier Eckbereichen des Rütteltisches (8) je ein Schwingungserreger (10) angeordnet ist, dessen Längsachse (12), die gleichzeitig die Schwingachse ist, mit der Senkrechten und der Horizontalen einen Winkel (∝) einschliesst.
- Rüttelantrieb nach Anspruch 8, dadurch gekennzeichnet, dass der Winkel (∝) 45° beträgt.
- Rüttelantrieb nach Anspruch 8 oder 9, dadurch gekennzeichnet, dass die Schwingungserreger (10) über sphärische Lager mit dem Rütteltisch (8) und/oder dem Maschinengestell (2) verbunden sind.
- Rüttelantrieb nach Anspruch 10, dadurch gekennzeichnet, dass die Lager aus Kugelgelenken (24) bestehen.
- Rüttelantrieb, insbesondere nach einem der Ansprüche 1 bis 11, mit den Formnestern der Form zugeordneten Druckplatten, die durch Hubelemente vertikal beweglich sind und von oben auf die in die Formnester eingefüllte Betonmasse drücken, dadurch gekennzeichnet, dass zwischen den Hubelementen und den Druckplatten (15) ein oder mehrere Schwingungserreger (10) angeordnet sind.
- Rüttelantrieb nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass die Parameter des Rüttelantriebes, wie Schwingfreqenz und/oder Schwingungsdauer und/oder Schwingungsweg und/oder Schwingungsrichtung und/oder die Anzahl der aktivierten Schwingungserreger (10) veränderbar sind.
- Rüttelantrieb nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, dass die Schwingungserreger (10) mit einem Mikroprozessor (26) verbunden sind, der ein oder mehrere vorwählbare Programme zur Einstellung der erforderlichen Parametergrössen des Rüttelantriebes enthält.
- Rüttelantrieb nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, dass die Schwingungserreger (10) einzeln oder in Gruppen steuerbar sind.
- Rüttelantrieb nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, dass der Rütteltisch (8, 28) einen oder mehrere Durchbrüche aufweist, durch die ein oder mehrere Stützkörper (33) berührungsfrei hindurchgeführt sind, wobei die oberen Enden der Stützkörper (33) eine Auflageebene (31) für ein Formbrett (8') bilden.
- Rüttelantrieb nach Anspruch 16, dadurch gekennzeichnet, dass die Stützkörper (33) auf einem Auflagerahmen (35) befestigt sind, der mit dem Maschinengestell (2) fest verbunden ist.
- Rüttelantrieb nach Anspruch 16 oder 17, dadurch gekennzeichnet, dass die Auflageebene (31) etwas über der Rüttelebene (30) des Rütteltisches (8, 28) liegt.
- Rüttelantrieb nach einem der Ansprüche 16 bis 18, dadurch gekennzeichnet, dass die Höhe der Auflageebene (31) entsprechend der Rüttelfrequenz des Rütteltisches (8, 28) einstellbar ist.
- Rüttelantrieb nach einem der Ansprüche 16 bis 19, dadurch gekennzeichnet, dass der Rütteltisch (8) aus einem Rüttelrahmen (28) mit mehreren Rüttelleisten (29) besteht, deren Oberseiten die etwas unterhalb der Auflageebene (31) liegende Rüttelebene (30) bilden und die Auf lageebene (31) durch mehrere Auf lageleisten (32) gebildet wird, die parallel zwischen den Rüttelleisten (29) des Rüttelrahmens (28) verlaufen und am oberen Ende der Stützkörper (33) des Auflagerahmens (35) befestigt sind, wobei die Stützkörper (33) zwischen Längsträgern (27) des Rüttelrahmens (28) durch diesen hindurch nach oben geführt sind.
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 (de) | 2000-11-08 |
EP1050393A3 EP1050393A3 (de) | 2002-11-13 |
EP1050393B1 EP1050393B1 (de) | 2007-09-26 |
Family
ID=26053268
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00107426A Expired - Lifetime EP1050393B1 (de) | 1999-05-07 | 2000-04-06 | Rüttelantrieb für eine Form |
Country Status (7)
Country | Link |
---|---|
US (1) | US6342750B1 (de) |
EP (1) | EP1050393B1 (de) |
AT (1) | ATE374096T1 (de) |
CA (1) | CA2305483A1 (de) |
DE (2) | DE19921145B4 (de) |
DK (1) | DK1050393T3 (de) |
ES (1) | ES2289981T3 (de) |
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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 |
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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 | Vorrichtung zur Herstellung von Betonformsteinen |
NL1023606C2 (nl) * | 2003-06-05 | 2004-12-07 | Kellen B V | Inrichting voor het vormen en verdichten van uithardbare gestorte productmassa. |
DK176725B1 (da) * | 2003-07-04 | 2009-05-04 | Kvm Industrimaskiner As | Fremgangsmåde til fremstilling af et vibrationsbord til betonstöbemaskiner samt et vibrationsbrod fremstillet ifölge fremgangsmåden |
DE102004009251B4 (de) | 2004-02-26 | 2006-05-24 | Hess Maschinenfabrik Gmbh & Co. Kg | Vibrator zum Beaufschlagen eines Gegenstandes in einer vorbestimmten Richtung und Vorrichtung zum Herstellen von Betonsteinen |
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NL2005171C2 (nl) * | 2010-07-29 | 2012-01-31 | Boer Staal Bv Den | Inrichting voor het verdichten van korrelvormige massa zoals betonspecie. |
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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 |
ES2289981T3 (es) | 2008-02-16 |
DK1050393T3 (da) | 2007-11-19 |
CA2305483A1 (en) | 2000-11-07 |
DE19921145B4 (de) | 2008-01-10 |
US6342750B1 (en) | 2002-01-29 |
EP1050393A3 (de) | 2002-11-13 |
DE50014669D1 (de) | 2007-11-08 |
DE19921145A1 (de) | 2000-11-09 |
EP1050393B1 (de) | 2007-09-26 |
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