EP1214988B1 - Dispositif pour la fabrication des tubes moulés à partir d'un matériau compactable - Google Patents

Dispositif pour la fabrication des tubes moulés à partir d'un matériau compactable Download PDF

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Publication number
EP1214988B1
EP1214988B1 EP01125971A EP01125971A EP1214988B1 EP 1214988 B1 EP1214988 B1 EP 1214988B1 EP 01125971 A EP01125971 A EP 01125971A EP 01125971 A EP01125971 A EP 01125971A EP 1214988 B1 EP1214988 B1 EP 1214988B1
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EP
European Patent Office
Prior art keywords
main shaft
gyroscope
core
axis
longitudinal axis
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.)
Expired - Lifetime
Application number
EP01125971A
Other languages
German (de)
English (en)
Other versions
EP1214988A3 (fr
EP1214988A2 (fr
Inventor
Jörg-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.)
Institut fuer Fertigteiltechnik und Fertigbau Weimar eV
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
Publication of EP1214988A2 publication Critical patent/EP1214988A2/fr
Publication of EP1214988A3 publication Critical patent/EP1214988A3/fr
Application granted granted Critical
Publication of EP1214988B1 publication Critical patent/EP1214988B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
    • B28B1/093—Producing shaped prefabricated articles from the material by vibrating or jolting by means directly acting on the material, e.g. by cores wholly or partly immersed in the material or elements acting on the upper surface of the material
    • B28B1/0935—Producing shaped prefabricated articles from the material by vibrating or jolting by means directly acting on the material, e.g. by cores wholly or partly immersed in the material or elements acting on the upper surface of the material using only elements wholly or partly immersed in the material, e.g. cores
    • 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
    • B28B21/00—Methods or machines specially adapted for the production of tubular articles
    • B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
    • B28B21/10—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means
    • B28B21/14—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means vibrating, e.g. the surface of the material

Definitions

  • the invention relates to a pipe manufacturer for producing pipes from a compactable mixture, wherein the compression takes place under the action of mechanical vibrations.
  • Such devices comprise a device for coupling mechanical vibrations in the compactable mixture, a vibrating body which is connected to the coupling device, and a main shaft which is rotatably mounted on the oscillating body about its longitudinal axis.
  • the bearings of the shaft are rigidly connected to the core, so that the vibration generated by unbalance excitation can act on the core on the compactable mixture. Accordingly, the distribution of the surface acceleration of the core along the longitudinal axis thereof is of great importance for the achievable densification of the batch and thus for the quality of the molded article produced therefrom.
  • the mechanical vibrations can be influenced, for example, via the rotational speed of the main shaft.
  • imbalance masses can be provided in several parallel planes along the longitudinal axis of the main shaft. By varying the individual imbalance masses in the respective levels tilt oscillations can also be corrected or adjusted specifically.
  • the invention is therefore based on the object to show alternatives for vibration generation and vibration control.
  • a pipe manufacturer for producing pipes according to claim 1 is proposed.
  • at least one gyroscope is connected to the main shaft and is rotatable about a gyro axis, the gyro axis being disposed non-parallel to the longitudinal axis of the main shaft and further comprising driving means for rotating the main shaft and gyro about their respective axes.
  • the gyro rotates about its gyro axis. Furthermore, the gyroscope is subjected to forced rotation about the longitudinal axis of the main shaft. The resulting reaction moments try to rotate the gyroscope so that the axis of the gyroscope rotation and the axis of the forced rotation are aligned in the same direction parallel to each other. However, such a relative movement is prevented by the connection of the gyro to the main shaft. Rather, the reaction torque whose vector is substantially perpendicular to the gyro axis and the longitudinal axis leads to a tilting moment on the oscillating body, which rotates at the speed of the main shaft. Accordingly, the vibration amplitudes vary along the longitudinal axis of the main shaft. This is not readily possible with the devices disclosed in DE 43 17 351 A1 and DE 196 43 978 C2.
  • the coupling device is for example a section of a molding tool.
  • the vibration exciter is connected with its oscillating body directly or via additional spring elements.
  • a ring may be formed on the mold surrounding the vibrating body in the manner of a sleeve.
  • the coupling device is a core of a hollow or tubular shape, which is resiliently mounted relative to other portions of the hollow or tubular shape.
  • the coupling device is a core of a hollow or tubular shape, which is resiliently mounted relative to other portions of the hollow or tubular shape.
  • the core takes the main shaft at least partially.
  • the entire vibration exciter is accommodated as far as possible within the core. This makes it possible in a particularly simple manner to protect the rotating elements against contamination.
  • the core is aligned in the operating position with its longitudinal axis in the vertical direction and resiliently mounted at its lower end, however, at its upper axial end unbent, so that he can swing freely there.
  • the gyro may for example be arranged within the core in the operating position in an upper end portion of the core or else halfway up the same.
  • the gyro may for example be arranged between two imbalance masses. However, it is also possible, the gyro at a free end portion of the main shaft to install. In the latter case, the gyro can also sit on a cantilevered end portion of the main shaft.
  • one or more further gyros are provided on the main shaft, which are each rotatable about their gyroscope axis, wherein the gyro axis is arranged non-parallel to the longitudinal axis of the main shaft.
  • the effect of the first gyroscope can be enhanced.
  • the or the gyroscope are preferably arranged such that the gyroscope axis or the gyroscope axes intersect the longitudinal axis of the main shaft.
  • the gyro axis or the gyro axes with the longitudinal axis of the main shaft at an angle of 90 ° which can be achieved with relatively small gyratory large tilting moments.
  • the circular axes of two identical gyros are coaxial with each other.
  • the gyros themselves do not become effective as imbalance mass.
  • the gyro axis coincides with the axis of symmetry of the associated gyroscope.
  • a separate, speed-controllable drive device is provided for the main shaft and for the gyroscope.
  • the vibration behavior of the vibration generator can be adjusted by a variation of the speed and the sense of rotation.
  • the superimposed tilting moment which rotates with the speed of the main shaft, can be increased or decreased.
  • the gyroscope is coupled to a speed-controllable centrifugal motor, wherein the gyro motor is attached to the main shaft.
  • the centrifugal motor can be an electric motor.
  • a section of the main shaft leading to the gyroscopic motor is designed as a hollow shaft.
  • an electrical supply line, but also a hydraulic or pneumatic line can be guided to the centrifugal motor.
  • the main shaft and the gyroscope are driven by a common drive means, wherein the drive means is coupled to the main shaft and the gyro rotating about the longitudinal axis with the main shaft is guided directly or via a gear on the oscillating body.
  • a sepa-rater drive for the or the gyroscope is not required in this case, so that there is a particularly simple structure.
  • the possibilities of speed variation for the gyroscope are somewhat limited here.
  • a further main shaft can be mounted parallel to the first main shaft on the oscillating body, on which in turn, in correspondence with the first main shaft, at least one gyroscope is provided.
  • further drive means are provided in correspondence with the first drive means in order to set the further main shaft and the or the further gyro in rotation.
  • one or more imbalance masses are again provided on each of the shafts.
  • a directional component of the unbalance excitation can be fully compensated, so that an unbalance-induced oscillatory motion in the form of a reciprocating motion along an axis can be generated, which are superimposed additional tilting depending on the control of the rotary speeds.
  • the first embodiment in Figure 1 shows an apparatus for the production of moldings from a compactable mixture G in the form of a tube-making machine with rising core.
  • the device comprises first in its operating position in the vertical direction aligned mold with an outer shell 1, often referred to as a jacket, and a retractable in this from below core 2, which has a substantially cylindrical outer shape.
  • 1 shows the state during filling and compacting of the molded part, for example a concrete pipe.
  • the core 2 which is supported on a machine frame 3 via elastic spring elements 4, substantially completely pulled out of the outer shell 1 down, so that the mold is just closed down.
  • the core 2 During filling of the mold with compressible batch G, the core 2 is moved upwards with increasing batch level. At the same time, the core 2 in this case performs a vibratory or vibrating motion in order to couple mechanical vibrations into the mixture G and thus to compact the mixture G located between its outer wall and the outer shell 1 of the forming tool. In this case, there is a great interest, especially the just freshly filled, still loose mixture solidify as possible without the inclusion of cavities, so that just in this area the highest possible surface acceleration and surface amplitudes at the upper axial end portion of the core 2 are desired.
  • a vibration exciter which is arranged as far as possible within the core 2.
  • This vibration exciter comprises first a vibrating body 5 in the form of a frame or vibrator tree, which is firmly clamped to the core 2.
  • a main shaft 6 On the oscillating body 5 is a main shaft 6 rotatably mounted, whose longitudinal axis L is aligned coaxially to the longitudinal axis of the core 2.
  • An electric motor 7 is coupled as a speed-controllable drive device for the main shaft 6 to an end section of the main shaft 6 projecting from the core 2 at the bottom, by way of example.
  • an electric motor 7 for example an asynchronous motor with frequency converter
  • a hydraulically or pneumatically driven motor can also be provided. It is also possible to use a separate from the main shaft 6 arranged drive means and to transmit the drive power, for example via a chain or belt drive on the main shaft 6.
  • the gyro axis K are arranged non-parallel to the longitudinal axis L of the main shaft 6.
  • the gyroscope axis K each with the longitudinal axis L at an angle of 90 °, wherein the gyro axis K intersect the longitudinal axis L.
  • the two gyros 8 are driven by a speed-controllable motor 9, the housing is fixedly connected to a cantilevered end portion of the main shaft 6.
  • the centrifugal motor 9 is here an electric motor, for example, again an asynchronous motor with frequency converter. However, it can also be used a hydraulically or pneumatically driven motor.
  • an unbalance mass 10 is rigidly secured to the main shaft 6 within the upper axial end portion of the core 2 between two bearing points of the main shaft 6.
  • the imbalance mass 10 generates radially directed imbalance forces, which excite the core 2 to a circumferential tilting movement, so that the outer wall of the core 2 introduces vibrations into the mixture G to be compacted or already compressed.
  • This unbalance excitation is superimposed on a further oscillation resulting from the rotation of the rotating gyro 8 about the longitudinal axis L.
  • a moment is generated, which is orthogonal to the respective gyro axis K as well as the longitudinal axis L, which essentially causes a tilting oscillation at the core 2.
  • This tilting oscillation has the same excitation frequency as the unbalance excitation.
  • a tilt oscillation excited by the gyroscope 8 can be used to reduce the tilting vibration generated by the imbalance mass 10.
  • the moments generated by the gyroscope can be adjusted in size with the speed of the gyroscope 8, so that in this way a simple correction of the vibration generated by the Umwuchtmassen 10 is possible without it being necessary for this, the core 2 and to disassemble the arranged substantially in this vibration exciter. Disassembly can still be done here in a very simple manner by the tension of the vibrating body 5 solved with the core 2 and the vibrating body 5 is pulled axially out of the core 2.
  • FIG. 1 A second exemplary embodiment of an apparatus for producing molded parts is shown in FIG.
  • This device is also designed as a tube finisher, which, in contrast to the first embodiment, however, has a stationary core 2 as a section of a molding tool.
  • the outer shell 1 of the mold and the core 2 during filling and compacting of the batch G in a fixed position to each other.
  • a vibrating body 5 is arranged within the core 2, which is supported via elastic elements 4 against a foundation 11 or a stationary machine frame, in turn, a vibrating body 5 is arranged.
  • This vibrating body 5 is connected via clamping devices 12 fixed to the core 2.
  • the tensioning devices 12 allow the use of similar vibrating bodies 5 in different cores 2.
  • a main shaft 6 is again rotatably mounted about its longitudinal axis L.
  • the drive of Hauptwel-le 6 can be carried out as in the first embodiment. In the example shown in Figure 2, however, the drive means 7 is arranged relative to the main shaft 6 off-axis, so that the corresponding end of the main shaft 6 remains free and optionally usable elsewhere.
  • the drive power is transmitted here from the drive device 7 via a belt drive 1 3 to the main shaft 6.
  • two gyros 8 are connected to the main shaft 6, wherein here, as in the first embodiment, the coupling via a Centrifugal motor 9 takes place, which is attached between two bearings of the main shaft 6 at the same.
  • the gyro 8 as well as the rotary motor 9 are formed as in the first embodiment and therefore need no further explanation.
  • the supply of the gyroscopic motor 9 takes place through a hollow shaft section 14 of the main shaft 6. Through this hollow shaft portion 14, for example, an electrical line or a hydraulic or pneumatic supply line to the centrifugal motor 9 are performed.
  • balancing masses 10 are provided on the main shaft 6, which are rigidly fixed here in each case at one end portion of the main shaft 6.
  • two additional bearings for the storage of the main shaft 6 are provided on the vibrating body 5 respectively.
  • the clamping devices 12 are each arranged at the level of Umwuchtmassen 10, so that the unbalance forces generated are introduced via the oscillating body 5 on a short path into the core 2.
  • the operation of the vibration actuator of the second embodiment is substantially the same as that of the first embodiment. Again, by a variation of the direction of rotation as well as the rotational speed of the gyroscope 8, the vibration excitation during filling and compression of the mold can be varied by the unbalanced vibration is superimposed over a circular excited vibration.
  • FIG. 3 A non-inventive example of a vibration exciter, which exploits the principle of gyro excitation is shown in Figure 3 based on a vibrating table, in which z. B. tilting vibrations due to load differences can be compensated by a Kreiselerregung.
  • the vibrating table comprises a vibrating body 5 in the form of a table, which is mounted at four points via resilient elements 8 on a stationary foundation 11.
  • the oscillating body 5 carries two mutually parallel main shafts 6 and 6 ', whose rotation is coupled via a gear 15, so that only a drive means 9 for both main shafts 6 and 6' is needed.
  • the gear 15, for example, a gear pair
  • a desired speed ratio between the main shafts 6 and 6 ' can be fixed.
  • Both Hauptwel len 6 and 6 ' rotate at the same speed, but in the opposite direction of rotation.
  • 6 or 6 'unbalanced masses 10 and 10' are fixed to each main shaft, which are arranged on both shafts in the same manner.
  • each gyro 8 or 8' provided with an associated rotary motor 9 and 9 ' here also the gyroscopes K to the respective longitudinal axis L of the associated main shaft 6 and 6' non-parallel are arranged.
  • an angle of 90 ° between the gyro axis K and the associated longitudinal axis L is provided.
  • the gyros 8 generate at the speed of the main shafts 6 and 6 'circumferential moments in a direction orthogonal to the respective gyro axis K and the associated longitudinal axis L, the size u. a. depends on the respective rotary speed. For example, if the two gyros 8 and 8 'driven at the same speed, so the horizontally acting moment components cancel, while the vertically acting moment components affect the tilting movement.
  • circularly excited tilting oscillations are used to influence the vibration behavior of a vibration exciter, this being possible simply by a change in the rotational speed of the gyroscope (s).
  • this can be influenced by a vibration generated by imbalance masses, wherein the correction torque of the or the gyroscope is delivered in the frequency of the unbalance excitation.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Moulding By Coating Moulds (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Materials For Medical Uses (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Claims (18)

  1. Dispositif pour la fabrication de tubes à partir d'un matériau compactable, sur lequel le compactage s'effectue sous l'effet de vibrations mécaniques, comprenant :
    - un dispositif pour la communication de vibrations mécaniques au matériau (G) compactable,
    - un corps vibrant (5), qui est relié au dispositif de communication,
    - un arbre principal (6), qui est monté sur le corps vibrant (5) de façon à pouvoir tourner autour de son axe longitudinal (L), et dont l'axe longitudinal (L) est orienté sur le même axe que l'axe longitudinal du dispositif de communication, caractérisé en ce que
    - au moins un gyroscope (8) est prévu, lequel est relié à l'arbre principal (6) et peut tourner autour d'un axe du gyroscope (K), l'axe du gyroscope (K) étant disposé de façon non parallèle à l'axe longitudinal (L) de l'arbre principal (6),
    - des moyens d'entraînement sont prévus, avec lesquels l'arbre principal (6) et le gyroscope (8) sont mis en rotation autour de l'axe (L, K) concerné, et
    - un dispositif d'entraînement séparé, à régime contrôlable, est prévu pour l'arbre principal (6) et pour le gyroscope (8).
  2. Dispositif selon la revendication 1, caractérisé en ce que le dispositif de communication est une partie d'un outil de moulage.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que le dispositif de communication est réalisé sous la forme d'un noyau (2) d'un moule creux ou d'un moule de tube et est monté de façon élastique comme un ressort par rapport à d'autres parties du moule creux ou du moule de tube.
  4. Dispositif selon la revendication 3, caractérisé en ce que le noyau (2) entoure l'arbre principal (6) au moins sur un tronçon partiel de sa longueur totale.
  5. Dispositif selon la revendication 3 ou 4, caractérisé en ce que le noyau (2) avec son axe longitudinal dans sa position active orienté dans la direction verticale (L), est monté de façon élastique comme un ressort sur son extrémité axiale inférieure et de ce fait est maintenu de façon librement oscillante sur son extrémité axiale supérieure.
  6. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un gyroscope (8) est disposé à l'intérieur d'un tronçon d'extrémité, supérieur dans la position active, du noyau (2).
  7. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un gyroscope (8) est disposé à l'intérieur du noyau (2) dans la position active à mi-hauteur de celui-ci.
  8. Dispositif selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'une ou plusieurs masses de balourd (10) sont prévues sur l'arbre principal (6).
  9. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un gyroscope (8) est disposé entre deux masses de balourd (10).
  10. Dispositif selon l'une quelconque des revendications susmentionnées, caractérisé en ce qu'un gyroscope (8) est disposé sur un tronçon d'extrémité libre de l'arbre principal (6).
  11. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un ou plusieurs autres gyroscopes (8) sont prévus sur l'arbre principal (6) et peuvent tourner autour de leur axe de gyroscope (K) respectif, les axes de gyroscope (K) étant disposés non parallèlement à l'axe longitudinal (L) de l'arbre principal (6).
  12. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que l'axe de gyroscope (K) ou les axes de gyroscope (K) coupent l'axe longitudinal (L) de l'arbre principal (6).
  13. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que l'axe de gyroscope (K) ou les axes de gyroscope (K) forment un angle de 90° avec l'axe longitudinal (L) de l'arbre principal (6).
  14. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que les axes de gyroscope (K) de deux gyroscopes (8) similaires sont disposés de façon coaxiale l'un par rapport à l'autre et les deux gyroscopes (8) sont entraînés en rotation dans le même sens.
  15. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'à chaque fois, l'axe de gyroscope (K) coïncide avec l'axe de symétrie du gyroscope (8) correspondant.
  16. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que chaque gyroscope (8) est couplé avec un moteur de gyroscope (9) à régime contrôlé et le moteur de gyroscope (9) est fixé sur l'arbre principal (6).
  17. Dispositif selon la revendication 16, caractérisé en ce qu'à chaque fois deux gyroscopes (8) sont couplés à un moteur de gyroscope (9).
  18. Dispositif selon la revendication 16 ou 17, caractérisé en ce qu'une partie (14), reliée au moteur de gyroscope (9), de l'arbre principal (6) est conçue comme un arbre creux.
EP01125971A 2000-12-13 2001-10-31 Dispositif pour la fabrication des tubes moulés à partir d'un matériau compactable Expired - Lifetime EP1214988B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10062530A DE10062530C1 (de) 2000-12-13 2000-12-13 Vorrichtung zur Herstellung von Formteilen aus einem verdichtungsfähigen Gemenge, Rütteltisch und Schwingungserreger
DE10062530 2000-12-13

Publications (3)

Publication Number Publication Date
EP1214988A2 EP1214988A2 (fr) 2002-06-19
EP1214988A3 EP1214988A3 (fr) 2004-12-08
EP1214988B1 true EP1214988B1 (fr) 2007-05-09

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ID=7667278

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01125971A Expired - Lifetime EP1214988B1 (fr) 2000-12-13 2001-10-31 Dispositif pour la fabrication des tubes moulés à partir d'un matériau compactable

Country Status (4)

Country Link
EP (1) EP1214988B1 (fr)
AT (1) ATE361790T1 (fr)
DE (2) DE10062530C1 (fr)
DK (1) DK1214988T3 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3708126A1 (de) * 1987-03-13 1988-09-22 Henkel Kgaa Vibrationsvorrichtung und verfahren zum vibrieren eines arbeitskopfes
JP2813453B2 (ja) * 1990-11-01 1998-10-22 三菱重工業株式会社 低周波数域加振機
US5172599A (en) * 1991-05-15 1992-12-22 Woltering Howard M Vibratory device
DE4317351A1 (de) * 1993-05-25 1994-12-01 Omag Maschinenbau Ag Betonform-Rüttelmaschine, insbesondere Kernrüttler
DE19643978C2 (de) * 1996-10-31 1999-07-08 Rebei Michael Dipl Ing Th Schwingungserzeuger mit kontinuierlich einstellbarer Fliehkraft während des laufenden Betriebes für den Einsatz in den Kernrüttelmaschinen (Beton-Rohrmaschinen), Rüttelvorrichtungen für Betonsteinformmaschinen, sowie in Vibrationswalzen

Also Published As

Publication number Publication date
DE50112480D1 (de) 2007-06-21
EP1214988A3 (fr) 2004-12-08
DK1214988T3 (da) 2007-07-02
EP1214988A2 (fr) 2002-06-19
DE10062530C1 (de) 2002-06-20
ATE361790T1 (de) 2007-06-15

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