EP0515305A1 - Vibrator - Google Patents

Vibrator Download PDF

Info

Publication number
EP0515305A1
EP0515305A1 EP92710013A EP92710013A EP0515305A1 EP 0515305 A1 EP0515305 A1 EP 0515305A1 EP 92710013 A EP92710013 A EP 92710013A EP 92710013 A EP92710013 A EP 92710013A EP 0515305 A1 EP0515305 A1 EP 0515305A1
Authority
EP
European Patent Office
Prior art keywords
unbalanced
vibrating
motors
motor
speed
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
EP92710013A
Other languages
German (de)
French (fr)
Other versions
EP0515305B1 (en
Inventor
Manfred Anderl
Gerhard Bogun
Winfried Burkhard
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.)
Hess Maschinenfabrik GmbH and Co KG
Original Assignee
Hess Maschinenfabrik GmbH and Co KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6432146&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0515305(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hess Maschinenfabrik GmbH and Co KG filed Critical Hess Maschinenfabrik GmbH and Co KG
Publication of EP0515305A1 publication Critical patent/EP0515305A1/en
Application granted granted Critical
Publication of EP0515305B1 publication Critical patent/EP0515305B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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

Definitions

  • the invention relates to a vibrating device with a vibrating table, with unbalanced shafts arranged in the vibrating table, driven and each provided with an unbalance body, which are assigned to one another in pairs, and with an adjusting device by means of which the vibrating frequency and the angular position of the unbalanced bodies can be changed relative to one another.
  • An adjustable and controllable vibrating device of the type mentioned serves the purpose of optimally compacting concrete elements during their production. This is achieved by program-controlled adaptation of the operating parameters of the vibrating device to the product-specific requirements during the production process.
  • the invention is based on the object of carrying out the adjustment of the operating parameters required to produce the optimum vibrating effect in accordance with a new principle in a vibrating device of the type mentioned at the outset.
  • this object is achieved in that each unbalanced shaft is driven individually by a motor which rotates at a predetermined speed in synchronism with the other motors, and an electronic controller is provided as an actuating device, by means of which each motor can be controlled in an angle-synchronized manner so that to change the vibrating frequency, the rotational speed of the unbalanced shafts and to change the angular position of the unbalanced bodies relative to one another, the rotational speed of at least one of the two mutually associated unbalanced shafts can be changed briefly.
  • the synchronization of the individual unbalance shafts is achieved by electronic, angularly synchronous control of the unbalance drives.
  • the intensity of the vibrating effect is controlled by an electronic change in the rotor position angle of the individual unbalance drives.
  • Each unbalanced shaft W1 to W4 is individually driven by one of the motors M1 to M4.
  • the motor M1 to M4 runs at the specified speed in synchronism with the other motors.
  • An electronic controller is provided as an adjusting device, by means of which the vibrating frequency and the angular position of the unbalance bodies U1 to U4 can be changed. Via the electronic controller, each motor M1 to M4 can be controlled in an angle-synchronized manner so that the Vibration frequency, the rotational speed of the unbalanced shafts W1 to W4 and to change the angular position of the unbalanced bodies U1 to U4 relative to one another, the rotational speed of at least one of the two mutually associated unbalanced shafts W1 to W4 can be changed briefly.
  • the unbalance bodies U1 to U4 of unbalanced shafts W1 to W4 assigned to one another have an angular position of 180 ° to one another.
  • motors M1 to M4 Via one of the two mutually assigned unbalanced shafts W1 to W4, motors M1 to M4, the one unbalanced shaft is briefly driven at a reduced speed, after reaching the desired new angular position which deviates from 180 °, again at the same speed as the motor driving the assigned unbalanced shaft.
  • the motors M1 to M4 are controlled via the motor control circuits K1 to K4 and the rotor position controller 2.
  • the rotor position control is superior to the motor control circuits K1 to K4.
  • Each motor M1 to M4 is assigned one of the mechanically coupled resolvers R1 to R4 and, as part of one of the motor control circuits K1 to K4, one of the drive inverters A1 to A4.
  • the drive converter A1 to A4 changes the speed of the motor M1 to M4 depending on the output signals sin ⁇ t and cos ⁇ t from the resolver R1 to R4 and setpoint signals from the rotor position controller 2 via the operating frequency f.
  • Actual values of the rotor positions of the motors M1 to M4 and operating parameters are fed to the rotor position controller 2 from the motor control circuits K1 to K4.
  • the operating parameters include, for example, the desired angle, vibrating time and actuating time.
  • the invention can be used commercially in the production of concrete elements that are compacted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Surgical Instruments (AREA)
  • Oscillators With Electromechanical Resonators (AREA)

Abstract

A vibrator includes a vibrating table; a plurality of driven unbalanced shafts disposed within the vibrating table and arranged in pairs; and a plurality of unbalanced bodies. A separate unbalanced body is connected to each unbalanced shaft. The unbalanced bodies can assume various vibrating frequencies and angular positions. An adjustment device varies the vibrating frequencies and angular positions of the unbalanced bodies relative to one another. Each shaft is driven by a separate motor; the motors are adapted to rotate in synchronism with one another at a predetermined rotational speed. The adjustment device includes an electronic controller for regulating each of the motors. The electronic controller includes an arrangement for changing the vibrating frequencies of the unbalanced bodies by briefly varying a rotational speed of the unbalanced shafts; and an arrangement for changing the angular positions of the unbalanced bodies relative to one another by briefly varying a rotational speed of at least one driven unbalanced shaft of a pair of driven unbalanced shafts.

Description

Technisches Gebiet:Technical field:

Die Erfindung betrifft eine Rüttelvorrichtung mit einem Rütteltisch, mit in dem Rütteltisch angeordneten, angetriebenen und mit je einem Unwuchtkörper versehenen Unwuchtwellen, die paarweise einander zugeordnet sind, und mit einer Stelleinrichtung, über die die Rüttelfrequenz und die Winkellage der Unwuchtkörper zueinander veränderbar ist.The invention relates to a vibrating device with a vibrating table, with unbalanced shafts arranged in the vibrating table, driven and each provided with an unbalance body, which are assigned to one another in pairs, and with an adjusting device by means of which the vibrating frequency and the angular position of the unbalanced bodies can be changed relative to one another.

Eine verstell- und regelbare Rüttelvorrichtung der genannten Art dient dem Zweck, Betonelemente bei ihrer Produktion optimal zu verdichten. Dies wird erreicht durch programmgesteuerte Anpassung der Betriebsparameter der Rüttelvorrichtung an die produktspezifischen Erfordernisse während des Produktionsvorganges.An adjustable and controllable vibrating device of the type mentioned serves the purpose of optimally compacting concrete elements during their production. This is achieved by program-controlled adaptation of the operating parameters of the vibrating device to the product-specific requirements during the production process.

Stand der Technik:State of the art:

Für die Programmsteuerung finden sich im Stand der Technik folgende Lösungen: Eine mechanische Verstellung einer Unwuchtmasse aus der Nullage bis zu einem Maximalwert erfolgt bei Außen- oder bei Gegenlaufvibratoren dadurch, daß auf den Unwuchtwellen querbewegliche Zahnspangen angeordnet sind, die über eine schrägverzahnte Schubstange mit einer außerhalb des Vibrators befindlichen Stelleinrichtung verbunden sind (DE-Zeitschrift "Betonwerk + Fertigteil-Technik" Heft 10/1988 S. 48 bis 50). Eine Phasenverstellung ist mittels eines elektromechanisch verstellbaren Überlagerungsgetriebes (DE 37 08 922 A1); oder mittels eines Phasenverstellgetriebes möglich (DE 37 09 112 C1).The following solutions for program control can be found in the prior art: A mechanical adjustment of an unbalance mass from the zero position to a maximum value takes place in the case of external or counter-rotating vibrators by arranging braces that move transversely on the unbalanced shafts and that are connected via an helical connecting rod to an outside of the vibrator located actuator are connected (DE magazine "Betonwerk + Fertigteil-Technik" issue 10/1988 pp. 48 to 50). A phase adjustment is by means of an electromechanically adjustable superposition gear (DE 37 08 922 A1); or possible by means of a phase adjustment gear (DE 37 09 112 C1).

Darstellung der Erfindung:Presentation of the invention:

Der Erfindung liegt folgende Überlegung zugrunde: Optimal erfolgt die Verdichtung von Betonelementen mit einer Rüttelvorrichtung, wenn folgende Verstell- und Regelaufgaben gelöst werden:

  • a) Veränderung der Rüttlerfrequenz durch Änderung der Rüttlerwellendrehzahl;
  • b) Veränderung der Rüttelkraft zwischen Null und Maximum durch Phasenverstellung von mindestens zwei umlaufenden Unwuchtmassen zueinander;
  • c) Veränderung der Schwingungsamplitude durch Kombination der unter a) und b) genannten Maßnahmen.
The invention is based on the following consideration: The compacting of concrete elements takes place with a vibrating device if the following adjustment and control tasks are solved:
  • a) changing the vibrator frequency by changing the vibrator shaft speed;
  • b) changing the shaking force between zero and maximum by phase adjustment of at least two rotating unbalanced masses to each other;
  • c) Change in the vibration amplitude by combining the measures mentioned under a) and b).

Danach liegt der Erfindung die Aufgabe zugrunde, bei einer Rüttelvorrichtung der eingangs genannten Art die zur Erzeugung des optimalen Rütteleffektes erforderliche Anpassung der Betriebsparameter nach einem neuen Prinzip durchzuführen. Gemäß der Erfindung wird diese Aufgabe dadurch gelöst, daß jede Unwuchtwelle einzeln durch einen Motor angetrieben ist, der mit vorgegebener Drehzahl im Gleichlauf mit den anderen Motoren umläuft, und als Stelleinrichtung ein elektronischer Regler vorgesehen ist, über den jeder Motor winkelsynchron so regelbar ist, daß zur Änderung der Rüttelfrequenz die Drehzahl der Unwuchtwellen und zur Änderung der Winkellage der Unwuchtkörper zueinander die Drehzahl zumindest der einen der beiden einander zugeordneten Unwuchtwellen kurzzeitig veränderbar ist.Accordingly, the invention is based on the object of carrying out the adjustment of the operating parameters required to produce the optimum vibrating effect in accordance with a new principle in a vibrating device of the type mentioned at the outset. According to the invention, this object is achieved in that each unbalanced shaft is driven individually by a motor which rotates at a predetermined speed in synchronism with the other motors, and an electronic controller is provided as an actuating device, by means of which each motor can be controlled in an angle-synchronized manner so that to change the vibrating frequency, the rotational speed of the unbalanced shafts and to change the angular position of the unbalanced bodies relative to one another, the rotational speed of at least one of the two mutually associated unbalanced shafts can be changed briefly.

Bei der Erfindung wird die Synchronisierung der einzelnen Unwuchtwellen durch eine elektronische, winkelsynchrone Regelung der Unwuchtantriebe erreicht. Die Intensität des Rütteleffekts wird gesteuert durch eine elektronische Veränderung des Rotorlagewinkels der einzelnen Unwuchtantriebe zueinander.In the invention, the synchronization of the individual unbalance shafts is achieved by electronic, angularly synchronous control of the unbalance drives. The intensity of the vibrating effect is controlled by an electronic change in the rotor position angle of the individual unbalance drives.

Ausgestaltungen und Weiterbildungen der Erfindung sind in den Unteransprüchen beschrieben.Refinements and developments of the invention are described in the subclaims.

Kurze Beschreibung der Zeichnungen:Brief description of the drawings:

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachfolgend im einzelnen beschrieben. Es zeigen in der Darstellung mit Schaltsymbolen

  • Fig. 1 einen Rütteltisch mit vier Unwuchtwellen und Einzelantrieb für jede Welle;
  • Fig. 2 einen zweiteiligen Rüttteltisch mit acht Unwuchtwellen, von denen je zwei Wellen miteinander gekuppelt sind, und mit Einzelantrieb für jede Welle, wobei auch der Regelkreis für die Einzelantriebe dargestellt ist;
  • Fig. 3 einen zweiteiligen Rütteltisch mit acht Unwuchtwellen und Einzelantrieb für jede Welle;
  • Fig. 4 die Wirkungsweise der Phasenverstellung der Unwuchtmassen;
  • Fig. 5 als Ausschnitt aus Fig. 2 den Regelkreis für einen der Einzelantriebe mit Angabe des Signalflusses.
An embodiment of the invention is shown in the drawing and will be described in detail below. They show in the representation with circuit symbols
  • 1 shows a vibrating table with four unbalanced shafts and individual drive for each shaft;
  • 2 shows a two-part vibrating table with eight unbalanced shafts, two of which are coupled to each other, and with an individual drive for each shaft, the control circuit for the individual drives also being shown;
  • 3 shows a two-part vibrating table with eight unbalanced shafts and individual drive for each shaft;
  • 4 shows the mode of operation of the phase adjustment of the unbalanced masses;
  • Fig. 5 as a detail from Fig. 2, the control loop for one of the individual drives with indication of the signal flow.

Weg zur Ausführung der Erfindung:Way of carrying out the invention:

Vier in einem Rütteltisch 1 angeordnete Unwuchtwellen W1 bis W4 werden einzeln durch zugeordnete Motoren M1 bis M4 über Gelenkwellen G1 bis G4 angetrieben. Die Unwuchtwellen W1 bis W4 sind mit Hilfe von Wälzlagern L1 bis L4 in dem Rütteltisch 1 gelagert. Mit jedem Motor M1 bis M4 ist über eine Kupplung C1 bis C4 ein Resolver R1 bis R4 mechanisch verbunden. Kupplungen sind auch zwischen den Wellen des zweiteiligen Rütteltisches 1 in Fig. 2 vorgesehen. Jeder Motor M1 bis M4 und jeder Resolver R1 bis R4 ist elektrisch mit einem Antriebsumrichter A1 bis A4 verbunden, der Bestandteil eines Motorregelkreises K1 bis K4 ist. Den Motorregelkreisen K1 bis K4 übergeordnet ist ein Rotorlagerregler 2.Four unbalanced shafts W1 to W4 arranged in a vibrating table 1 are individually driven by associated motors M1 to M4 via cardan shafts G1 to G4. The unbalanced shafts W1 to W4 are supported in the vibrating table 1 with the aid of roller bearings L1 to L4. A resolver R1 to R4 is mechanically connected to each motor M1 to M4 via a coupling C1 to C4. Couplings are also provided between the shafts of the two-part vibrating table 1 in FIG. 2. Each motor M1 to M4 and each resolver R1 to R4 is electrically connected to a drive converter A1 to A4, which is part of a motor control circuit K1 to K4. A rotor bearing controller 2 is superior to the motor control circuits K1 to K4.

Alle vier Motoren M1 bis M4 drehen ständig mit vorgegebener Drehzahl in absolutem Gleichlauf. Auf den Wellen befestigte Unwuchtkörper U1 bis U4 stehen so zueinander, daß sich die Zentrifugalkräfte gegenseitig aufheben und keine Rüttelwirkung vorhanden ist - Fig. 4, Bild 1 -. Soll gerüttelt werden, ist eine Phasenverstellung der Unwuchtkörper U1 bis U4 auf einen Wert notwendig, der der gewünschten Rütttelwirkung entspricht. Dies geschieht in der Weise, daß die Motoren M3 und M4 kurzzeitig mit verringerter Drehzahl gegenüber den Motoren M1 und M2, aber im Gleichlauf miteinander drehen, bis die gewünschte Phasenverstellung erreicht ist - Fig. 4, z.B. 100% in Bild 3 und 70% in Bild 2 -, um dann sofort wieder mit der gleichen Drehzahl wie die Motoren M1 und M2 zu rotieren, sodaß die eingestellte Lage der Unwuchten U1 bis U4 für die Dauer des Rüttelvorgangs erhalten bleibt. Die Rückstellung in die Nullage erfolgt in entgegengesetzt gleicher Weise. Die in Fig. 3 dargestellte Anordnung ermöglicht den gleichzeitigen Betrieb der Rütteltischhälften mit unterschiedlichen Frequenzen und Rüttelkräften.All four motors M1 to M4 rotate continuously at a given speed in absolute synchronism. Imbalance bodies U1 to U4 fastened on the shafts are positioned so that the centrifugal forces cancel each other and there is no vibrating effect - Fig. 4, Fig. 1 -. If vibrations are required, the unbalance bodies U1 to U4 must be phase-adjusted to a value that corresponds to the desired vibration effect. This is done in such a way that the motors M3 and M4 rotate briefly at a reduced speed compared to the motors M1 and M2, but in synchronism with one another, until the desired phase adjustment is reached - Fig. 4, e.g. 100% in Fig. 3 and 70% in Fig. 2 - in order to then immediately rotate again at the same speed as the motors M1 and M2, so that the set position of the unbalances U1 to U4 is retained for the duration of the vibrating process. The reset to the zero position takes place in the opposite manner. The arrangement shown in Fig. 3 enables the simultaneous operation of the vibrating table halves with different frequencies and vibrating forces.

Jede Unwuchtwelle W1 bis W4 ist einzeln durch einen der Motoren M1 bis M4 angetrieben. Der Motor M1 bis M4 läuft mit vorgegebener Drehzahl im Gleichlauf mit den anderen Motoren um. Als Stelleinrichtung, über die die Rüttelfrequenz und die Winkellage der Unwuchtkörper U1 bis U4 zueinander veränderbar ist, ist ein elektronischer Regler vorgesehen. Über den elektronischen Regler ist jeder Motor M1 bis M4 winkelsynchron so regelbar, daß zur Änderung der Rüttelfrequenz die Drehzahl der Unwuchtwellen W1 bis W4 und zur Änderung der Winkellage der Unwuchtkörper U1 bis U4 zueinander die Drehzahl zumindest der einen der beiden einander zugeordneten Unwuchtwellen W1 bis W4 kurzzeitig veränderbar ist.Each unbalanced shaft W1 to W4 is individually driven by one of the motors M1 to M4. The motor M1 to M4 runs at the specified speed in synchronism with the other motors. An electronic controller is provided as an adjusting device, by means of which the vibrating frequency and the angular position of the unbalance bodies U1 to U4 can be changed. Via the electronic controller, each motor M1 to M4 can be controlled in an angle-synchronized manner so that the Vibration frequency, the rotational speed of the unbalanced shafts W1 to W4 and to change the angular position of the unbalanced bodies U1 to U4 relative to one another, the rotational speed of at least one of the two mutually associated unbalanced shafts W1 to W4 can be changed briefly.

Die Unwuchtkörper U1 bis U4 einander zugeordneter Unwuchtwellen W1 bis W4 weisen eine Winkellage von 180° zueinander auf. Über den einen der beiden einander zugeordnete Unwuchtwellen W1 bis W4 antreibenden Motoren M1 bis M4 ist die eine Unwuchtwelle kurzzeitig mit verringerter Drehzahl, nach Erreichen der von 180° abweichenden, gewünschten neuen Winkellage wieder mit derselben Drehzahl angetrieben wie der die zugeordnete Unwuchtwelle antreibende Motor.The unbalance bodies U1 to U4 of unbalanced shafts W1 to W4 assigned to one another have an angular position of 180 ° to one another. Via one of the two mutually assigned unbalanced shafts W1 to W4, motors M1 to M4, the one unbalanced shaft is briefly driven at a reduced speed, after reaching the desired new angular position which deviates from 180 °, again at the same speed as the motor driving the assigned unbalanced shaft.

Die Regelung der Motoren M1 bis M4 ist über die Motorregelkreise K1 bis K4 und den Rotorlageregler 2 vorgenommen. Die Rotorlageregelung ist den Motorregelkreisen K1 bis K4 übergeordnet. Jedem Motor M1 bis M4 sind einer der mechanisch gekuppelten Resolver R1 bis R4 und als Bestandteil eines der Motorregelkreise K1 bis K4 einer der Antriebsumrichter A1 bis A4 zugeordnet. Der Antriebsumrichter A1 bis A4 verändert in Abhängigkeit von Ausgangssignalen sinωt und cosωt aus dem Resolver R1 bis R4 und Sollwertsignalen aus dem Rotorlageregler 2 über die Betriebsfrequenz f die Drehzahl des Motors M1 bis M4. Dem Rotorlageregler 2 sind aus den Motorregelkreisen K1 bis K4 Istwerte der Rotorlagen der Motoren M1 bis M4 und Betriebsparameter zugeführt. Zu den Betriebsparametern gehören beispielsweise Sollwinkel, Rütteldauer und Stellzeit.The motors M1 to M4 are controlled via the motor control circuits K1 to K4 and the rotor position controller 2. The rotor position control is superior to the motor control circuits K1 to K4. Each motor M1 to M4 is assigned one of the mechanically coupled resolvers R1 to R4 and, as part of one of the motor control circuits K1 to K4, one of the drive inverters A1 to A4. The drive converter A1 to A4 changes the speed of the motor M1 to M4 depending on the output signals sinωt and cosωt from the resolver R1 to R4 and setpoint signals from the rotor position controller 2 via the operating frequency f. Actual values of the rotor positions of the motors M1 to M4 and operating parameters are fed to the rotor position controller 2 from the motor control circuits K1 to K4. The operating parameters include, for example, the desired angle, vibrating time and actuating time.

Einer der Motoren M1 ist als Leitantrieb, die übrigen Motoren M2 bis M4 sind als Folgeantriebe vorgesehen. Für den Leitantrieb ist in Abhängigkeit von der gewählten Drehzahl eine feste Sollwertvorgabe vorgesehen, und der Sollwert für die Folgeantriebe wird über einen PI-Stellalgorithmus aus deren Abweichung von der Sollage errechnet ist. Der PI-Stellalgorithmus lautet:

Figure imgb0001

mit

Yn
= Stellgröße für den Zyklus n
Xdn
= Regeldifferenz im Zyklus n
Xdn - 1
= Regeldifferenz im Zyklus n - 1
TA
= Abtastzeit
TN
= Nachstellzeit
TV
= Vorhaltezeit
Kp
= Proportionalkonstante.
One of the motors M1 is a master drive, the other motors M2 to M4 are provided as slave drives. Depending on the selected speed, a fixed setpoint is provided for the master drive, and the setpoint for the slave drives is calculated using a PI actuation algorithm from their deviation from the setpoint. The PI positioning algorithm is:
Figure imgb0001
With
Y n
= Manipulated variable for cycle n
X dn
= Control difference in cycle n
X dn - 1
= Control difference in cycle n - 1
T A
= Sampling time
T N
= Reset time
T V
= Retention time
K p
= Proportional constant.

Gewerbliche Verwertbarkeit:Commercial usability:

Die Erfindung ist gewerblich verwertbar bei der Produktion von Betonelementen, die verdichtet werden.The invention can be used commercially in the production of concrete elements that are compacted.

Claims (8)

Rüttelvorrichtung mit einem Rütteltisch (1), mit in dem Rütteltisch (1) angeordneten, angetriebenen und mit je einem Unwuchtkörper (U1 bis U4) versehenen Unwuchtwellen (W1 bis W4), die paarweise einander zugeordnet sind, und mit einer Stelleinrichtung, über die die Rüttelfrequenz und die Winkellage der Unwuchtkörper (U1 bis U4) zueinander veränderbar ist, dadurch gekennzeichnet, daß jede Unwuchtwelle (W1 bis W4) einzeln durch einen Motor (M1 bis M4) angetrieben ist, der mit vorgegebener Drehzahl im Gleichlauf mit den anderen Motoren umläuft, und als Stelleinrichtung ein elektronischer Regler vorgesehen ist, über den jeder Motor (M1 bis M4) winkelsynchron so regelbar ist, daß zur Änderung der Rüttelfrequenz die Drehzahl der Unwuchtwellen (W1 bis W4) und zur Änderung der Winkellage der Unwuchtkörper (U1 bis U4) zueinander die Drehzahl zumindest der einen der beiden einander zugeordneten Unwuchtwellen (W1 bis W4) kurzzeitig veränderbar ist.Vibrating device with a vibrating table (1), with unbalanced shafts (W1 to W4) arranged in the vibrating table (1), driven and each with an unbalance body (U1 to U4), which are assigned to one another in pairs, and with an actuating device via which the Vibration frequency and the angular position of the unbalance bodies (U1 to U4) can be changed relative to one another, characterized in that each unbalanced shaft (W1 to W4) is individually driven by a motor (M1 to M4) which rotates at a predetermined speed in synchronization with the other motors, and an electronic controller is provided as the setting device, by means of which each motor (M1 to M4) can be controlled in an angle-synchronized manner so that the rotational speed of the unbalanced shafts (W1 to W4) and the change in the angular position of the unbalanced bodies (U1 to U4) relative to one another are used to change the vibrating frequency the speed of at least one of the two mutually assigned unbalanced shafts (W1 to W4) can be changed briefly. Rüttelvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß vier Unwuchtwellen (W1 bis W4) in dem Rütteltisch (1) angeordnet sind.Vibrating device according to claim 1, characterized in that four unbalanced shafts (W1 to W4) are arranged in the vibrating table (1). Rüttelvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Unwuchtkörper (U1 bis U4) einander zugeordneter Unwuchtwellen (W1 bis W4) eine Winkellage von 180° zueinander aufweisen, und daß über den einen der beiden einander zugeordnete Unwuchtwellen (W1 bis W4) antreibenden Motoren (M1 bis M4) die eine Unwuchtwelle kurzzeitig mit verringerter Drehzahl und nach Erreichen der von 180° abweichenden gewünschten neuen Winkellage wieder mit einer Drehzahl angetrieben ist, die derjenigen des die zugeordnete Unwuchtwelle antreibenden Motors entspricht.Vibrating device according to Claim 1 or 2, characterized in that the unbalance bodies (U1 to U4) of unbalanced shafts (W1 to W4) assigned to one another have an angular position of 180 ° to one another, and in that the one of the two mutually assigned unbalanced shafts (W1 to W4) drives Motors (M1 to M4) which an imbalance shaft is briefly driven at a reduced speed and after reaching the desired new angular position deviating from 180 ° again at a speed which corresponds to that of the motor driving the associated unbalanced shaft. Rüttelvorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichent, daß die Regelung der Motoren (M1 bis M4) über Motorregelkreise (K1 bis K4) und einen den Motorregelkreisen übergeordneten Rotorlageregler (2) erfolgt.Vibrating device according to one of Claims 1 to 3, characterized in that the motors (M1 to M4) are controlled by means of motor control loops (K1 to K4) and a rotor position controller (2) superordinate to the motor control loops. Rüttelvorrichtung nach Anspruch 4, dadurch gekennzeichent, daß jedem Motor (M1 bis M4) ein mechanisch gekoppelter Resolver (R1 bis R4) und als Bestandteil des Motorregelkreises (K1 bis K4) ein Antriebsumrichter (A1 bis A4) zugeordnet sind, der in Abhängigkeit von Ausgangssignalen (sinωt; cosωt) aus dem Resolver (R1 bis R4) und Sollwertsignalen aus dem Rotorlageregler (2) über die Betriebsfrequenz (f) die Drehzahl des Motors (M1 bis M4) verändert.Vibrating device according to claim 4, characterized in that each motor (M1 to M4) is assigned a mechanically coupled resolver (R1 to R4) and, as a component of the motor control circuit (K1 to K4), a drive converter (A1 to A4) which is dependent on output signals (sinωt; cosωt) from the resolver (R1 to R4) and setpoint signals from the rotor position controller (2) via the operating frequency (f) changed the speed of the motor (M1 to M4). Rüttelvorrichtung nach Anspruch 5, dadurch gekennzeichent, daß dem Rotorlageregler (2) aus den Motorregelkreisen (K1 bis K4) Istwerte der Rotorlagen der Motoren (M1 bis M4) und Betriebsparameter zugeführt werden.Vibrating device according to claim 5, characterized in that actual values of the rotor positions of the motors (M1 to M4) and operating parameters are supplied to the rotor position controller (2) from the motor control circuits (K1 to K4). Rüttelvorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichent, daß einer der Motoren (M1) als Leitantrieb, die übrigen Motoren (M2 bis M4) als Folgeantriebe vorgesehen sind.Vibrating device according to one of claims 1 to 6, characterized in that one of the motors (M1) is provided as a master drive, the other motors (M2 to M4) are provided as slave drives. Rüttelvorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß für den Leitantrieb in Abhängigkeit von der gewählten Drehzahl eine feste Sollwertvorgabe vorgesehen ist und der Sollwert für die Folgeantriebe über einen PI-Stellalgorithmus aus deren Abweichung von der Sollage errechnet wird.Vibrating device according to claim 7, characterized in that a fixed setpoint value is provided for the master drive as a function of the selected speed and the setpoint value for the slave drives is calculated from their deviation from the setpoint position using a PI actuation algorithm.
EP92710013A 1991-05-22 1992-04-29 Vibrator Expired - Lifetime EP0515305B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4116647 1991-05-22
DE4116647A DE4116647C5 (en) 1991-05-22 1991-05-22 shaker

Publications (2)

Publication Number Publication Date
EP0515305A1 true EP0515305A1 (en) 1992-11-25
EP0515305B1 EP0515305B1 (en) 1995-11-08

Family

ID=6432146

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92710013A Expired - Lifetime EP0515305B1 (en) 1991-05-22 1992-04-29 Vibrator

Country Status (6)

Country Link
US (1) US5355732A (en)
EP (1) EP0515305B1 (en)
AT (1) ATE129935T1 (en)
CA (1) CA2087849C (en)
DE (2) DE4116647C5 (en)
WO (1) WO1992020466A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0600526A1 (en) * 1992-12-03 1994-06-08 Antonio Poyatos Diaz Vibrating arrangement for machinery
US6504278B1 (en) 1998-05-08 2003-01-07 Gedib Ingenieurburo Und Innovationsberatung Gmbh Regulating device for adjusting the static moment resulting from unbalanced mass vibration generators
WO2003103858A1 (en) * 2002-06-06 2003-12-18 Romert Gmbh Device having an operating and functional unit
WO2004069504A1 (en) * 2003-02-05 2004-08-19 Institut für Fertigteiltechnik und Fertigbau Weimar e.V. Device for moulding mixtures
DE102007059779A1 (en) 2007-12-08 2009-06-10 Eviro Elektromaschinenbau & Metall Gmbh Eibenstock Vibrator motor controlling method, involves receiving clock pulses per revolution of master and slave, comparing counter readings, digitally blanking or braking slave, and advancing and harmonizing slave
AT16604U1 (en) * 2018-02-13 2020-02-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Machine for stabilizing a track

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4301368A1 (en) * 1992-07-03 1994-01-05 Gedib Ingbuero Innovation Device and method for exciting vibrations
DE4317351A1 (en) * 1993-05-25 1994-12-01 Omag Maschinenbau Ag Concrete mould vibrating machine, in particular core vibrator
DE4335944A1 (en) * 1993-10-25 1995-04-27 Ebawe Maschinenbau Gmbh Method and vibrating device for manufacturing plate-shaped pre-cast concrete parts
US5606231A (en) * 1993-12-04 1997-02-25 Netter Gmbh Vibrating table for masses to be compacted and a vibratory method of compaction for the compaction of concrete
DE4341387C2 (en) * 1993-12-04 1996-12-05 Netter Gmbh Vibrating table for vibrating a mass to be compacted, especially concrete
DE4400839A1 (en) * 1994-01-14 1995-07-20 Avermann Maschinenfabrik Betri Synchronised vibrator system for multi-form precast concrete
DE4425905A1 (en) * 1994-07-21 1996-01-25 Bald Hubert Device and method for compensating transverse vibrations on unbalance vibrators with a predetermined vibration direction
DE19511608A1 (en) * 1995-03-30 1996-10-10 Zenith Maschf Gmbh Vibrating device for the vibrating table of a stone molding machine
US5615763A (en) * 1995-08-18 1997-04-01 Carrier Vibrating Equipment, Inc. Vibratory conveyor system for adjusting the periodic resultant forces supplied to a conveyor trough
DE19812986C1 (en) * 1998-03-24 1999-11-11 Masa Ag Unbalance shaker for stone molding machines
FR2777534B1 (en) * 1998-04-16 2000-06-23 Cegelec Sa DEVICE FOR REDUCING VIBRATION ON A BOAT
DE19850351A1 (en) * 1998-11-02 2000-05-04 Masa Ag Unbalance shaker for stone molding machines
DE29819501U1 (en) * 1998-11-03 1998-12-24 Zenith Maschf Gmbh Vibrating device for stone molding machines
SE513571C2 (en) * 1999-03-18 2000-10-02 Ulf Bertil Andersson Apparatus for generating mechanical vibrations
DE19921145B4 (en) * 1999-05-07 2008-01-10 Kobra Formen Gmbh Vibrating drive for a mold
JP4289579B2 (en) * 2000-07-05 2009-07-01 新東工業株式会社 Casting sand filling vibration device
CA2428293C (en) * 2000-11-11 2010-12-14 Hubert Bald Compacting device for compacting molded bodies from granular materials and method of using the compacting device
WO2002038289A1 (en) * 2000-11-12 2002-05-16 GEDIB Ingenieurbüro und Innovationsberatung GmbH Device for modulating the activation energy in mass-spring oscillators
DE10301143A1 (en) 2003-01-14 2004-07-22 Schenck Process Gmbh Method and device for adjusting the amount of bulk material on a conveyor trough of a vibrating machine
DE10351177B4 (en) * 2003-11-03 2005-09-15 Albert Handtmann Metallgusswerk Gmbh & Co. Kg Method and device for a three-dimensional vibration system for casting containers in the lost-foam casting process
AU2006207959B2 (en) * 2005-01-27 2011-01-27 Columbia Machine, Inc. Large pallet machine for forming molded products
DE102005029433A1 (en) * 2005-06-24 2006-12-28 Wacker Construction Equipment Ag Vibrating plate for compacting soil has one unbalanced mass not requiring phase adjusting device but all other unbalanced masses with such device
DE102005039743B3 (en) * 2005-08-23 2007-01-18 Technische Universität Bergakademie Freiberg Settling molding sand around pattern comprises vibrating molding box containing it on shaking table fitted with counterweights, each of which can slide in one of three directions at right-angles to each other
ITFI20060088A1 (en) * 2006-04-03 2007-10-04 Form Impianti S R L VIBRATING FLOOR FOR VIBROPRESSE
DE102006029241A1 (en) * 2006-06-26 2007-12-27 Gebr. Bellmer Gmbh Maschinenfabrik Device for generating vibrations
FR2934192B1 (en) * 2008-07-25 2010-09-10 Quadra 1 VIBRATING PRESS FOR THE PRODUCTION OF CONSTRUCTION ELEMENTS AND METHOD FOR PRODUCING BUILDING ELEMENTS
DE202011003658U1 (en) 2011-03-08 2011-06-09 Vollert Anlagenbau GmbH, 74189 compressor station
CN102335948A (en) * 2011-10-28 2012-02-01 福建省卓越鸿昌建材装备股份有限公司 Vibration platform for block forming machine
US9427887B2 (en) 2013-02-05 2016-08-30 Besser Company Concrete product molding machine vibration drive apparatus
RU2531518C1 (en) * 2013-03-06 2014-10-20 Николай Михайлович Балезин Method of control of operating force (versions) and regulated vibrator for its implementation
CN103909560B (en) * 2014-04-04 2016-08-17 西安东方福星机械有限公司 A kind of automatic frequency-conversion luffing vibrating device and vibration control method thereof
EP3173158A1 (en) * 2015-11-26 2017-05-31 Joachim Hug Vibrating ram to cold-harden the surface of a working piece
US11034053B2 (en) 2019-06-03 2021-06-15 Besser Company Concrete product machine apron plate gap adjustment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE972488C (en) * 1951-04-29 1959-11-12 Schenck Gmbh Carl Vibrating conveyor or screen
DE1558839A1 (en) * 1967-04-28 1970-06-11 Jordan Dr Ing Heinz Vibratory drive using two self-synchronizing counter-rotating imbalances
EP0092014A1 (en) * 1982-04-21 1983-10-26 Losenhausen Maschinenbau AG& Co Kommanditgesellschaft Regulator for a vibrations generator with unbalanced masses
EP0337040A1 (en) * 1988-04-14 1989-10-18 Gec Alsthom Sa Device for compensating a vibrational force or a vibrational torque created by a body

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3918298A (en) * 1974-07-29 1975-11-11 Mts System Corp Multiple actuator control system
FR2314776A1 (en) * 1975-06-16 1977-01-14 Babbitless Sa DIRECTED ACTION VIBRATING DEVICE
GB2128289B (en) * 1982-10-07 1986-01-15 Acme Conveyors & Constr Vibratory machinery
SU1283571A1 (en) * 1985-07-15 1987-01-15 Институт Проблем Машиностроения Ан Усср Multicoordinate vibration-testing bed
DE3709112C1 (en) * 1986-08-27 1988-01-28 Knauer Maschf Gmbh Vibrating device for a concrete block molding machine
DE3708922A1 (en) * 1987-03-19 1988-09-29 Henke Maschf Gmbh Device for manufacturing concrete parts
SU1610360A1 (en) * 1988-12-26 1990-11-30 Минский радиотехнический институт Amplifier of vibrations for vibration-testing machine
US5005439A (en) * 1989-07-14 1991-04-09 Barry Wright Corporation Inertia force generating device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE972488C (en) * 1951-04-29 1959-11-12 Schenck Gmbh Carl Vibrating conveyor or screen
DE1558839A1 (en) * 1967-04-28 1970-06-11 Jordan Dr Ing Heinz Vibratory drive using two self-synchronizing counter-rotating imbalances
EP0092014A1 (en) * 1982-04-21 1983-10-26 Losenhausen Maschinenbau AG& Co Kommanditgesellschaft Regulator for a vibrations generator with unbalanced masses
EP0337040A1 (en) * 1988-04-14 1989-10-18 Gec Alsthom Sa Device for compensating a vibrational force or a vibrational torque created by a body

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0600526A1 (en) * 1992-12-03 1994-06-08 Antonio Poyatos Diaz Vibrating arrangement for machinery
US5496167A (en) * 1992-12-03 1996-03-05 Diaz; Antonio P. Vibrating arrangement
US6504278B1 (en) 1998-05-08 2003-01-07 Gedib Ingenieurburo Und Innovationsberatung Gmbh Regulating device for adjusting the static moment resulting from unbalanced mass vibration generators
WO2003103858A1 (en) * 2002-06-06 2003-12-18 Romert Gmbh Device having an operating and functional unit
WO2004069504A1 (en) * 2003-02-05 2004-08-19 Institut für Fertigteiltechnik und Fertigbau Weimar e.V. Device for moulding mixtures
US7527487B2 (en) 2003-02-05 2009-05-05 Institut für Fertigteiltechnik und Fertigbau Weimar e.V. Device for moulding mixtures
DE102007059779A1 (en) 2007-12-08 2009-06-10 Eviro Elektromaschinenbau & Metall Gmbh Eibenstock Vibrator motor controlling method, involves receiving clock pulses per revolution of master and slave, comparing counter readings, digitally blanking or braking slave, and advancing and harmonizing slave
AT16604U1 (en) * 2018-02-13 2020-02-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Machine for stabilizing a track

Also Published As

Publication number Publication date
CA2087849C (en) 2001-01-02
WO1992020466A1 (en) 1992-11-26
ATE129935T1 (en) 1995-11-15
DE59204232D1 (en) 1995-12-14
CA2087849A1 (en) 1992-11-23
EP0515305B1 (en) 1995-11-08
US5355732A (en) 1994-10-18
DE4116647C1 (en) 1992-07-02
DE4116647C5 (en) 2004-07-08

Similar Documents

Publication Publication Date Title
EP0515305B1 (en) Vibrator
EP3902637B1 (en) Device and method for setting and controlling at least one oscillation mode by means of the plurality of unbalance exciter units on a screening device
DE19638695B4 (en) Modular Vibration Generator and Method of Operation
EP2910312A1 (en) Pivoting assembly for a vibrating table or a screening device
DE3241624C2 (en) Measuring method and measuring device for determining the solids loading of the drum of a centrifuge
EP0980292A1 (en) Device for generating directed vibrations
EP3789126A1 (en) Adjustable screening machine
DE19812986C1 (en) Unbalance shaker for stone molding machines
DE19811344C2 (en) Concrete compacting arrangement with vibration sensor and control
EP0683119A1 (en) Control-device for the vibration-rate of a vibrating spout
DE4219648A1 (en) Controlling vibrating system e.g. crusher, conveyor chute - generating equal and opposite vibrations to minimise emanations, esp. of air or sound vibrations
DE3808524C2 (en)
EP3693090A1 (en) Adjustable screening machine and method for operating an adjustable screening machine
DE2619328A1 (en) ARRANGEMENT FOR CONTROLLING A VIBRATION GENERATOR USED TO GENERATE SEISMIC VIBRATIONS
DE2936541A1 (en) METHOD FOR ADJUSTING THE ANGLE MOVEMENT SIZE OF A VIBRATING SCREEN OR A VIBRATION FEEDING DEVICE
EP0734786A1 (en) Vibration device for a vibrating table of a moulding machine
EP3399105B1 (en) Soil compaction device
DE102010022468A1 (en) vibratory hammer
WO2017076525A1 (en) Vibration generator and method for driving a pile into a soil
EP2896464B1 (en) Oscillation exciter
DE202007018292U1 (en) vibration drive
EP0999020A2 (en) Unbalanced mass vibrations generator for a bricks moulding machine
DE60023965T2 (en) Control method for determining a synchronous position and a rotating machine that rotates synchronously with it
WO2004030834A1 (en) Active compensation of vibrations in a machine for cleaning grain
DE2421705A1 (en) Compacting of concrete using vibrating blocks - involves using electric motor-driven imbalance vibrators using three phase current

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19930210

17Q First examination report despatched

Effective date: 19931027

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB IT LI NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19951108

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19951108

Ref country code: GB

Effective date: 19951108

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19951108

Ref country code: DK

Effective date: 19951108

Ref country code: BE

Effective date: 19951108

REF Corresponds to:

Ref document number: 129935

Country of ref document: AT

Date of ref document: 19951115

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59204232

Country of ref document: DE

Date of ref document: 19951214

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19960208

ET Fr: translation filed
ET1 Fr: translation filed ** revision of the translation of the patent or the claims
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19960429

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19960430

Ref country code: CH

Effective date: 19960430

GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19951108

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

26 Opposition filed

Opponent name: HENKE MASCHINENFABRIK GMBH & CO.KG

Effective date: 19960808

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19990429

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19990610

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001229

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

R26 Opposition filed (corrected)

Opponent name: MASA-HENKE-MASCHINENFABRIK GMBH & CO. KG

Effective date: 19960808

PLBL Opposition procedure terminated

Free format text: ORIGINAL CODE: EPIDOS OPPC

PLBM Termination of opposition procedure: date of legal effect published

Free format text: ORIGINAL CODE: 0009276

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION PROCEDURE CLOSED

27C Opposition proceedings terminated

Effective date: 20020217