EP2147779A1 - Rüttelpresse für die Herstellung von Bauelementen und Herstellungsverfahren von Bauelementen - Google Patents

Rüttelpresse für die Herstellung von Bauelementen und Herstellungsverfahren von Bauelementen Download PDF

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Publication number
EP2147779A1
EP2147779A1 EP09164162A EP09164162A EP2147779A1 EP 2147779 A1 EP2147779 A1 EP 2147779A1 EP 09164162 A EP09164162 A EP 09164162A EP 09164162 A EP09164162 A EP 09164162A EP 2147779 A1 EP2147779 A1 EP 2147779A1
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EP
European Patent Office
Prior art keywords
mold
rotation
shafts
lines
vibrators
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
EP09164162A
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English (en)
French (fr)
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EP2147779B1 (de
Inventor
Daniel Ancrenaz
Jean Marie Lemaire
Fabrice Pellet
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.)
Quadra 1 SAS
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Quadra 1 SAS
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Filing date
Publication date
Application filed by Quadra 1 SAS filed Critical Quadra 1 SAS
Publication of EP2147779A1 publication Critical patent/EP2147779A1/de
Application granted granted Critical
Publication of EP2147779B1 publication Critical patent/EP2147779B1/de
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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
    • B06B1/16—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
    • B06B1/161—Adjustable systems, i.e. where amplitude or direction of frequency of vibration can be varied
    • B06B1/166—Where the phase-angle of masses mounted on counter-rotating shafts can be varied, e.g. variation of the vibration phase
    • 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
    • B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
    • B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
    • B28B13/0215—Feeding the moulding material in measured quantities from a container or silo
    • B28B13/023—Feeding the moulding material in measured quantities from a container or silo by using a feed box transferring the moulding material from a hopper to the moulding cavities
    • 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

Definitions

  • the present invention relates to a vibrating press for the production of building elements.
  • Vibrating presses are high-speed machines used in automatic production lines and in series of molded building elements such as blocks, pavers, interjoists, slabs, blocks, or curbs.
  • the invention finds particular application in the production of building elements based on cement or concrete, and can be applied to other areas where we find the same problems of molding elements.
  • a vibrating press of this type is known in particular from the document EP 0 382 653 A1 .
  • the vibrating table conventionally comprises a thick metal plate under which are reported the lines of vibrators capable of generating a vibration force.
  • the mold is shaped to form the walls of the element to be molded, with means for holding the mold in abutment against a removable molding plate attached to the metal plate of the vibrating table.
  • the mold whose bottom or bottom is open, is placed directly on the molding plate.
  • the mold whose top is also open, is filled from above by the dispensing means.
  • the dispensing means generally consists of a drawer that moves linearly between a first position where a hopper drops fresh product into the drawer, and a second position above the mold where the product flows into the mold at as the drawer moves forward over the mold.
  • the translation direction of the slide generally corresponds to the longitudinal direction of the vibrating press.
  • the vibrating press also incorporates a compaction presser or pestle, vertically movable and optionally having a grid, being inserted into the interstices of the mold to form the hollow parts of the element to be molded.
  • the fresh product to be molded is preferably "dry" concrete, that is to say concrete in a pasty state and having sufficient rigidity to maintain a given shape after removal of the mold and when the freshly formed element rests only on the molding plate.
  • the application of a vibration to the concrete during the filling and compacting phases makes it possible to satisfy quality criteria of the construction elements thus produced.
  • the elements must be of constant height, have a uniform and uniform compactness of the concrete, as well as a mechanical strength and a certain aspect.
  • the vibration mainly unidirectional vertically and from below upwards, is transmitted by the vibrating table to the molding plate by means in particular of the vibrator lines and abutments of the bridge type known in particular from the document EP 1 875 996 A1 .
  • the lines of vibrators consist of rotary vibrators feeder, formed of rotating shafts on which are mounted eccentric said weighted or unbalanced.
  • the rotating shafts are aligned along horizontal axes and parallel to the direction of movement of the spool valve.
  • the weights are arranged at appropriate angles so that, when the vibrators are rotated in opposite directions of rotation and synchronously, they produce a substantially vertical unidirectional vibration force.
  • a vibration is a fast movement back and forth from a material point around its equilibrium position.
  • the vibratory movements originate from the centrifugal excitation forces created by the rotation of the flyweights.
  • the direction of the vibration ensuring optimum efficiency is of the unidirectional and vertical type, it is necessary to analyze the projection of the vibratory force of each line of vibrators on both a vertical axis and a horizontal axis.
  • the sum of the vertical projections will create the overall vibration motion.
  • the sum of the horizontal projections should ideally vanish to prevent the movement of the vibrating table in the horizontal plane.
  • the resulting force is variable with time, it is sinusoidal.
  • the vibrating table therefore allows a vibration of given amplitude around a position of equilibrium.
  • the latter moves over the mold between a rear portion and a front portion of the mold, before starting its recoil phase.
  • the rear part of the mold begins to fill by gravity while the front part will be only a few moments later.
  • the drawer first covers the rear portion of the mold and, progressively during its advance, moves the fresh product to the front part.
  • the rear portion has been in a filling situation for a longer period of time than the front part.
  • the structural elements exiting the mold have a higher rearward density.
  • the shape of the mold favors filling at the front, the reverse effect can also occur with a higher density towards the front of the building element.
  • the present invention is intended to solve this problem with a vibrating press adapted to promote or slow the filling of the mold fresh product on a rear or front of the mold.
  • the present invention therefore proposes to act on the vibration, and thus on its lines of vibrators and on their control, to optimize the filling of the mold and to avoid density dispersions.
  • the press according to the invention makes it possible to obtain a different force and vibration effect between the rear and the front of the mold (or between the rear and the front of the vibrating table on which the mold rests) only during the filling phase of the mold, and only if necessary.
  • the vibrator lines are transversely aligned relative to the direction of movement of the dispensing means (corresponding to the direction of filling of the mold), certain so-called rear lines extend mainly under the rear part of the mold, while certain other lines say before extend mainly under the front part.
  • the vibrator lines each comprise a rotary shaft on which is mounted at least one eccentric of the unbalance type or flyweight.
  • This type of vibrator line is also known as unbalanced vibrators.
  • control means are designed to control the phase shift in the rotation of the rotary shafts, and corresponding eccentrics, in order to vary the vibrating force between the rear part and the front part of the mold.
  • the control means play on the phase shift of the eccentric rotation, between the rear lines and the front lines, to ensure a different vibration force between the rear and the rear. 'before the mold.
  • the invention makes it possible to give priority to the vibration at the rear or the front of the mold in order to compensate for the filling defects inherent in the feed means by a displacement at above the mold.
  • Such a press may nevertheless lead to the existence of a horizontal vibratory component, or horizontal component of the force centrifugal, which is still low intensity and therefore no adverse effect on the entire press and on the building elements.
  • control means are adapted to also allow the vibration movement transmitted by the vibrator lines to said mold to be identical between the rear part and the front part of the mold.
  • the press is adapted to print an identical vibration force between the back and the front of the mold.
  • the rotary shafts support several eccentric oriented in the same direction and the same direction.
  • the dispensing means is movable in translation along a longitudinal axis of the press, and the vibrator lines extend along a transverse axis of the press substantially normal to said longitudinal axis.
  • the press is of the type comprising a single vibrating table.
  • the particular orientation of the vibrator lines under this single vibrating table makes it possible to control and make the vibrating force between the front and the rear of this table to obtain amplitudes, speeds and accelerations applied to this different table between the front and back.
  • This makes it possible to correct or compensate, if necessary, the filling in fresh product to be molded between the front and the back and thus obtain a homogeneous filling.
  • the vibrator lines each comprise a rotary shaft on which at least one eccentric of the unbalance or flyweight type is mounted
  • the press comprises at least two pairs of vibrator lines, including a rear pair disposed under the rear portion of the vibrator. mold and comprising a first and a second rotating shafts, and a front pair disposed under the front portion of the mold and comprising a third and a fourth rotating shafts.
  • the method comprises a step of compacting the product to be molded with a step of controlling the rotation drive of the vibrator lines adapted to allow the vibration movement transmitted by the vibrator lines to said mold to be identical between the part back and the front part of the mold during compaction.
  • the axis X indicates the longitudinal direction of the press
  • the axis Y indicates the transverse direction of the press, where the two axes X and Y are perpendicular. and horizontal.
  • the Z axis it indicates the vertical direction, from bottom to top, of the press.
  • the frame 1 consists of a fixed frame anchored to the ground and comprising in particular horizontal and transverse beams 10 on which the vibrating table 2 rests, via elastic suspension studs 21, and vertical beams 11 fixed in the ground.
  • the frame 1 further comprises horizontal and longitudinal beams 12 extending under the distribution slide 4, and intended to support conveying means of the molding plates 30.
  • the vertical support walls also called wear plates or candles, comprise at least one removable portion so that it can be replaced when worn.
  • the vibrating table 2 thus has an upper bearing surface, on which is intended to be placed the molding plate 30 forming support of the mold 3 and the associated eccentric building element.
  • the press comprises bridges (not shown) integral with the frame, constituting an abutment limiting the downward movement of the molding plate 30 placed on the vibrating table 2 under the action of a pressure exerted on the mold 3.
  • a trigger guard otherwise referred to as a fixed lower abutment, is generally in the form of a horizontal bar extending across the vibrating table 2, above the plate 20, and between the abutment walls.
  • this bridge bar is fixed on vertical uprights, especially by means of shims whose thickness to adjust the relative position of the upper surface of the bridges relative to the upper bearing surface of the 2.
  • the vertical uprights typically rest on a rigid frame located under the horizontal and transverse beams 10 of the frame 1.
  • the present application refers in particular to the EP 1 875 996 A1 and EP 0 382 653 A1 for additional details; the subject of the present application relates more specifically to the lines of vibrators 5 and their rotational drives.
  • the retaining plate 14 is a horizontal plate extending to the rear rim 31 of the mold 3; the rear of the mold 3 being defined as the portion of the mold 3 upstream relative to the direction of movement of the slide 4 from the first to the second position, corresponding to the right portion on the figures 1 and 2 .
  • the drawer 4 does not empty until it has passed the retaining plate 14. Then, once the drawer 4 exceeds the retaining plate 14, the concrete 3 begins to flow into the mold 3 , and more particularly at the rear of the mold 3, until the drawer 4 reaches the second position where it covers at least completely the top of the mold 3, and in particular the front of the mold 3, and completely fills said mold 3.
  • the mold 3 is shaped to form the walls of the element to be molded.
  • the mold 3, whose bottom or bottom is open, is placed directly on the molding plate 30.
  • the mold 3, whose top is also open, is filled from above, as already described, by the dispensing spool 4.
  • the mold 3 has a rear portion 32 and a front portion 33.
  • the vibrator lines 5 extend in the transverse direction Y, perpendicular to the longitudinal direction X corresponding to the direction of movement of the drawer 4 , and comprise lines arranged under the rear portion 32, dedicated mainly to the vibration of this rear portion 32, and lines disposed under the front portion 33, dedicated primarily to the vibration of this front portion 33.
  • the lines of vibrators 5 are parallel to each other, all the shafts 51 to 54 all extending parallel to the transverse axis Y.
  • the eccentrics 55 of the different shafts are all identical, of the same mass and of the same shape.
  • the lines of vibrators 5 are identical to each other and are regularly offset relative to each other in the longitudinal direction X.
  • On the same shaft, all the eccentrics 55 are oriented in the same direction and the same direction; the eccentrics 55 being integral in rotation with their respective shafts, these eccentrics will remain similarly aligned on their shafts during all phases of life of the vibrating press.
  • each shaft is associated with a motor 56 for driving in rotation.
  • the motors 56 are arranged along a horizontal and longitudinal beam 12 in which are provided passage zones for traversing the shafts 51 to 54.
  • the shafts 51 to 54 are supported by bearings 57 consisting of two longitudinal housings comprising bearings lubricated by bubbling in an oil bath and fixed rigidly under the plate 20 of the vibrating table 2, in particular by means of fixing screws.
  • the shafts 51 to 54 comprise several sections interconnected by transmissions 58, in particular a cardan joint disposed linking two shaft sections between the two bearings 57.
  • transmissions 58 in particular a cardan joint disposed linking two shaft sections between the two bearings 57.
  • the invention is not limited to the shape of the shafts. rotary, nor those of the bearings 57 or transmissions 58 in case of cut-off tree.
  • Intermediate housings 60 may each receive two independent shafts mounted on bearings lubricated by an oil bath; the role of these intermediate boxes 60 is to create intermediate bearings receiving jerks retransmitted by the transmissions driving the shafts of vibrators.
  • Each shaft 51 to 54 is further connected to a motor 56 by means of transmissions 59 sliding with universal joints connecting the outgoing shaft sections of these housings 60 to the shaft sections located under the vibrating table 2.
  • the four motors 56 are electric and each equipped with an electronic system for angular position control, in particular of the resolver or encoder type.
  • Each motor 56 is powered by a frequency converter equipped with an electronic positioning card.
  • the frequency converter makes it possible to choose the speed of rotation of the motor 56 and thus of the lines 5 or of the shafts 51 to 54 carrying the eccentrics 55.
  • the positioning cards are associated with a main control member of the press according to the invention. and, in particular through a specially adapted program, will manage and control the angular position of each of the motors 56 and therefore of each of the lines 5 or shafts 51 to 54.Each motor 56 being angularly managed independently, it will it is possible to combine them differently to allow a distinct vibration movement between the back and the front of the mold 3.
  • the rear pair of vibrator lines 5, consisting of the first 51 and second 52 trees, is supposed to act mainly on the rear portion 32 of the mold 3, while the front pair of vibratory lines 5, consisting of the third 53 and fourth 54 shafts, is supposed to act mainly on the front portion 33 of the mold 3.
  • the eccentrics of the first shaft 51 are opposed to the eccentrics of the second shaft 52, that is to say that they are all aligned in the same vertical direction Z but in opposite directions; the eccentrics of the first shaft 51 pointing upwards while the eccentrics of the second shaft 52 point downwards.
  • the eccentrics of the third shaft 53 are opposed to the eccentrics of the fourth shaft 54, that is to say that they are all aligned in the same vertical direction Z but in opposite directions; the eccentrics of the third shaft 53 pointing downwards while the eccentrics of the fourth shaft 54 point upwards.
  • the shafts 51 to 54 are all rotated at the same speed ⁇ and synchronously in opposite directions within each pair of vibrator lines (as already mentioned), so that the different centrifugal forces F1 to F4 from the rotation of the respective shafts 51 to 54 cancel each other out.
  • the maximum vertical vibratory force Fz is for example between 20000 and 30000 daN, following the rotation of the four shaft lines 51 to 54, and can be of the order of 24720 daN at a frequency of 70 Hz or 4200 tr / min.
  • the shafts 51 to 54 are out of phase with respect to the vertical axis Z at a non-zero angle.
  • the introduction of a phase shift, with respect to a starting position of the eccentrics ensuring a zero vertical force makes it possible to control the vibration forces between the rear and the front of the mold 3.
  • the rear vibratory force Fzar is different from the vibratory force before Fzav, thus allowing to have a different vibratory movement between the back and the front of the mold. It is thus possible to obtain a greater force on a portion of the vibratory table then giving different amplitudes to this part of table, hence a different behavior of the mold and concrete.
  • a horizontal resultant force Fh will also be generated but, of low value, it will have no harmful impact on the mechanical systems or the quality of the products manufactured.
  • the vibrating press according to the invention thus makes it possible to differentiate the rear vibratory force from the front vibratory force for a single vibrating table, which makes it possible to compensate for the filling defects related to the advance of the distribution drawer above the mold.
  • the rear vibratory force Fzar is equal to the vibratory force before Fzav, thus allowing identical vibratory movement between the rear and the front of the mold.
  • Such uniform vibratory movement is desirable especially during the compaction phase following the filling phase of the mold.
  • the resulting horizontal force Fh is zero.
  • the phase during which it is useful to have a different force between the front and the back of the mold is the filling phase.
  • each of the engines rotates at the same speed, including when there is a different force between the front and the back of the mold.
  • the vibratory force should not shake the mold too much and it is usually between 11000 and 15000 daN for the table.
  • each pair of tree lines develops between 5500 and 7500 daN.
  • the permissible difference between the force before Fzav and the rear force Fzar is for example 1000 daN maximum.
  • the horizontal force Fh generated is between 400 and 700 daN.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Automation & Control Theory (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
EP09164162.1A 2008-07-25 2009-06-30 Rüttelpresse für die Herstellung von Bauelementen und Herstellungsverfahren von Bauelementen Active EP2147779B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0804262A FR2934192B1 (fr) 2008-07-25 2008-07-25 Presse vibrante pour la production d'elements de construction et procede de production d'elements de construction

Publications (2)

Publication Number Publication Date
EP2147779A1 true EP2147779A1 (de) 2010-01-27
EP2147779B1 EP2147779B1 (de) 2018-03-14

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EP (1) EP2147779B1 (de)
FR (1) FR2934192B1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103192444A (zh) * 2012-01-09 2013-07-10 李光华 一种人造石英石真空振动压机
CN103465340A (zh) * 2013-08-20 2013-12-25 营口惠邦科技发展有限公司 砌块成型机变频变幅垂直振动装置
CN104227825A (zh) * 2013-06-20 2014-12-24 苏州千瑞机电科技有限公司 一种建筑墙板生产机
CN107186857A (zh) * 2017-07-28 2017-09-22 西安银马实业发展有限公司 一种用于pc构件的点阵式振动系统
CN119928331A (zh) * 2025-03-07 2025-05-06 滕州市宏鹰纺织有限责任公司 一种纺织废料回收用加压处理装置
CN120245170A (zh) * 2025-06-04 2025-07-04 中铁五局集团第六工程有限责任公司 一种铁路用水泥预制件生产装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114434591B (zh) * 2021-05-21 2023-06-16 江苏伟丰建筑安装集团有限公司 一种土木建筑工程用混凝土墙板定量浇筑设备

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0382653A1 (de) 1989-02-01 1990-08-16 Euromat S.A. Vibrationspresse zum Formen von Betongegenständen
WO1992020467A1 (fr) * 1991-05-22 1992-11-26 Societe Materiels Vincent Vaillant Mvv S.A. Dispositif autorisant le controle et l'action d'effets vibratoires sur des machines et materiels en vue notamment du traitement de produits destines a etre fibres, tasses et compactes
US5355732A (en) * 1991-05-22 1994-10-18 Hess Maschinenfabrik Gmbh & Co. Kg Vibrating table with driven unbalanced shafts
EP0734786A1 (de) * 1995-03-30 1996-10-02 Zenith-Maschinenfabrik GmbH Rüttelvorrichtung für den Rütteltisch einer Steinformmaschine
NL1008725C2 (nl) * 1998-03-27 1999-10-01 Mason Europ B V Werkwijze voor het regelen van een verdichtingsinrichting alsmede een dergelijke verdichtingsinrichting.
WO2006081480A2 (en) * 2005-01-27 2006-08-03 Columbia Machine, Inc. Large pallet machine for forming molded products
EP1842640A2 (de) * 2006-04-03 2007-10-10 Form Impianti S.R.L. Rütteltisch für Vibrationspresse
EP1875996A1 (de) 2006-07-03 2008-01-09 Quadra 1 Vibrierende Presse für die Herstellung von Bauelementen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0382653A1 (de) 1989-02-01 1990-08-16 Euromat S.A. Vibrationspresse zum Formen von Betongegenständen
WO1992020467A1 (fr) * 1991-05-22 1992-11-26 Societe Materiels Vincent Vaillant Mvv S.A. Dispositif autorisant le controle et l'action d'effets vibratoires sur des machines et materiels en vue notamment du traitement de produits destines a etre fibres, tasses et compactes
US5355732A (en) * 1991-05-22 1994-10-18 Hess Maschinenfabrik Gmbh & Co. Kg Vibrating table with driven unbalanced shafts
EP0734786A1 (de) * 1995-03-30 1996-10-02 Zenith-Maschinenfabrik GmbH Rüttelvorrichtung für den Rütteltisch einer Steinformmaschine
NL1008725C2 (nl) * 1998-03-27 1999-10-01 Mason Europ B V Werkwijze voor het regelen van een verdichtingsinrichting alsmede een dergelijke verdichtingsinrichting.
WO2006081480A2 (en) * 2005-01-27 2006-08-03 Columbia Machine, Inc. Large pallet machine for forming molded products
EP1842640A2 (de) * 2006-04-03 2007-10-10 Form Impianti S.R.L. Rütteltisch für Vibrationspresse
EP1875996A1 (de) 2006-07-03 2008-01-09 Quadra 1 Vibrierende Presse für die Herstellung von Bauelementen

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103192444A (zh) * 2012-01-09 2013-07-10 李光华 一种人造石英石真空振动压机
CN104227825A (zh) * 2013-06-20 2014-12-24 苏州千瑞机电科技有限公司 一种建筑墙板生产机
CN103465340A (zh) * 2013-08-20 2013-12-25 营口惠邦科技发展有限公司 砌块成型机变频变幅垂直振动装置
CN107186857A (zh) * 2017-07-28 2017-09-22 西安银马实业发展有限公司 一种用于pc构件的点阵式振动系统
CN119928331A (zh) * 2025-03-07 2025-05-06 滕州市宏鹰纺织有限责任公司 一种纺织废料回收用加压处理装置
CN120245170A (zh) * 2025-06-04 2025-07-04 中铁五局集团第六工程有限责任公司 一种铁路用水泥预制件生产装置

Also Published As

Publication number Publication date
EP2147779B1 (de) 2018-03-14
FR2934192B1 (fr) 2010-09-10
FR2934192A1 (fr) 2010-01-29

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