EP1080858B1 - Dispositif d'obtention de vibrations - Google Patents

Dispositif d'obtention de vibrations

Info

Publication number
EP1080858B1
EP1080858B1 EP00114460A EP00114460A EP1080858B1 EP 1080858 B1 EP1080858 B1 EP 1080858B1 EP 00114460 A EP00114460 A EP 00114460A EP 00114460 A EP00114460 A EP 00114460A EP 1080858 B1 EP1080858 B1 EP 1080858B1
Authority
EP
European Patent Office
Prior art keywords
housing
vibratory drive
mold
mould
vibration
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
EP00114460A
Other languages
German (de)
English (en)
Other versions
EP1080858A3 (fr
EP1080858A2 (fr
Inventor
Rudolf Braungardt
Erwin Schmucker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kobra Formen GmbH
Original Assignee
Kobra Formen GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kobra Formen GmbH filed Critical Kobra Formen GmbH
Publication of EP1080858A2 publication Critical patent/EP1080858A2/fr
Publication of EP1080858A3 publication Critical patent/EP1080858A3/fr
Application granted granted Critical
Publication of EP1080858B1 publication Critical patent/EP1080858B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
    • B28B1/087—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould
    • B28B1/0873—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould the mould being placed on vibrating or jolting supports, e.g. moulding tables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
    • B28B3/022—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form combined with vibrating or jolting

Definitions

  • the invention relates to a Rüttelantrieb for a mold for the production of concrete moldings, which is deposited on a frame or a vibrating table and filled with flowable concrete, wherein the Rüttelantrieb consists of at least one piezoelectric vibration exciter with a piezoelectric element which is arranged swingably in a housing of the vibration exciter , Such drives are well known.
  • US 5 837 298 shows a device for smoothing concrete surfaces, which is placed with the smooth underside of the bottom plate of a plastic housing on the surface to be smoothed and moved by hand over the surface.
  • the bottom plate is excited to vibrate, which cause the formation of a surface layer of aqueous slurry and by curing a smooth surface.
  • the invention has for its object to provide an improved Rüttelantrieb for a mold for the production of concrete moldings.
  • the piezoelectric element By applying an alternating voltage to the piezoelectric element, the latter is set in an oscillating motion, which transmits itself to the imbalance mass and thus also shakes the mold in vibration.
  • the imbalance mass is a piston which is mounted in a cylinder of the housing back and forth.
  • a check valve in the cylinder is provided at least on the opposite side of the piezoelectric element of the piston, which opens in the pulling direction of a spring system of the piezoelectric element and closes in the pressure direction in the end position of the piston.
  • the check valve is arranged in a cylinder and the housing closing lid.
  • At least one oscillation exciter with vertical and / or horizontal oscillation direction is fastened interchangeably on one or more sides of the mold.
  • the vibration exciters can also be integrated into the mold.
  • the vibration exciter can be relatively small and compact and can be attached to various locations in any number of the form to the different Rüttelbericht account wear.
  • the vibration exciters can optionally be mounted so that the shaking movements of the shape in a vertical or horizontal direction of vibration or combined done.
  • Another significant advantage is that with existing vibrating table forming machines, the mechanical unbalance motors can be easily replaced by the piezoelectric vibrators.
  • a mold 3 is mounted in rubber bearings 4 swingably in a known manner.
  • the brackets 1 are driven vertically movable, so that the mold 3 can be deposited with its top and bottom open mold cavities 5 on a molding board 6.
  • the molding board 6 rests on horizontal rails 7 of a frame 8.
  • the mold cavities 5 are filled in a known manner with flowable concrete, which is compacted by shaking the mold and evenly distributed in the mold cavities.
  • a plurality of piezoelectric vibration exciters 9 are fixedly arranged on the outer sides of the mold 3, with which the mold 3 can be set into vibration by applying an alternating voltage to the vibration generator 9.
  • Each vibration exciter 9 consists of a housing 10, in which a commercially available piezoelectric element 11 is mounted in a known manner swingably (Fig. 3).
  • the piezoelectric element 11 is formed by a plurality of juxtaposed individual elements and has the shape of a flat bar, which is mounted at both ends in the longitudinal direction movable in the housing 10.
  • a deformation movement which is amplified by a spring system 12 and into a direction transverse to the longitudinal direction of the piezoelectric element 11 reciprocating motion (Arrow direction 13, 13 ') is converted.
  • the oscillating movement of the spring system 12 is transmitted to a force acting as unbalanced mass piston 14, which is movably mounted in a cylinder 15 of the housing 10 in the direction of arrow 13, 13 '.
  • Such trained piezo elements are known and can be purchased as built-in parts.
  • a cylinder space 16 filled with air is closed by a cover 17, which is screwed to the end face of the housing 10.
  • a check valve 18 which opens in the pulling direction 13 of the spring system 12 and in the pressure direction 13 'closes.
  • Another check valve can also be provided on the opposite side of the piston.
  • the vibration exciters 9 can also be attached to the vibrating table. In this way it is possible to convert existing forming machines without major changes by the mechanical unbalance motors, which are usually attached to the vibrating table, are replaced by the vibration generator 9 according to the invention.
  • the application of the vibration exciter according to the invention is not limited to the production of concrete moldings, but is everywhere possible where vibrations are required for the working process, such. B. at conveyors.

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)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Surgical Instruments (AREA)
  • Confectionery (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)

Claims (6)

  1. Dispositif de production de vibrations pour un moule destiné à la fabrication de corps moulés en béton, qui est déposé sur un châssis ou sur une table vibrante et qui est rempli de béton coulant, caractérisé en ce que le dispositif de production de vibrations se compose d'au moins un générateur de vibrations piézoélectrique avec un piézoélément, qui est disposé de façon vibrante dans un boîtier du générateur de vibrations, en ce que le piézoélément (11) est en relation d'entraînement avec une masse non équilibrée, qui est montée de façon librement vibrante dans le boîtier (10) du générateur de vibrations (9), et en ce que le boîtier (10) est attaché fixement au moule (3) ou à la table vibrante.
  2. Dispositif de production de vibrations selon la revendication 1, caractérisé en ce que la masse non équilibrée est un piston (14), qui est monté dans un cylindre (15) du boîtier (10) et qui peut être animé d'un mouvement alternatif.
  3. Dispositif de production de vibrations selon la revendication 2, caractérisé en ce qu'il est prévu dans le cylindre (15), au moins sur le côté du piston (14) situé en face du piézoélément (11), un clapet anti-retour (18) qui s'ouvre dans le sens de traction (13) d'un système de ressort (12) du piézoélément (11) et qui se ferme dans le sens de compression (13') dans la position finale du piston (14).
  4. Dispositif de production de vibrations selon la revendication 3, caractérisé en ce que le clapet anti-retour (18) est disposé dans un couvercle (17) fermant le cylindre (15) et le boîtier (10).
  5. Dispositif de production de vibrations selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'au moins un générateur de vibrations (9) avec une direction de vibration verticale et/ou horizontale (direction de flèche 13, 13') est fixé de façon interchangeable sur un ou plusieurs côtés du moule (3).
  6. Dispositif de production de vibrations selon l'une quelconque des revendications 1 à 5, caractérisé en ce que les générateurs de vibrations (9) sont intégrés dans le moule (3).
EP00114460A 1999-08-24 2000-07-06 Dispositif d'obtention de vibrations Expired - Lifetime EP1080858B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19940119 1999-08-24
DE19940119A DE19940119A1 (de) 1999-08-24 1999-08-24 Rüttelantrieb

Publications (3)

Publication Number Publication Date
EP1080858A2 EP1080858A2 (fr) 2001-03-07
EP1080858A3 EP1080858A3 (fr) 2002-11-13
EP1080858B1 true EP1080858B1 (fr) 2006-10-04

Family

ID=7919438

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00114460A Expired - Lifetime EP1080858B1 (fr) 1999-08-24 2000-07-06 Dispositif d'obtention de vibrations

Country Status (7)

Country Link
US (1) US6402499B1 (fr)
EP (1) EP1080858B1 (fr)
AT (1) ATE341430T1 (fr)
CA (1) CA2316455C (fr)
DE (2) DE19940119A1 (fr)
DK (1) DK1080858T3 (fr)
ES (1) ES2270763T3 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20219768U1 (de) * 2002-12-20 2003-03-06 Kobra Formen Gmbh Vorrichtung zur Herstellung von Betonformsteinen
FR2850217A1 (fr) * 2003-01-17 2004-07-23 Cedrat Technologies Actionneur piezoactif a deplacement amplifie amorti
DE10351177B4 (de) * 2003-11-03 2005-09-15 Albert Handtmann Metallgusswerk Gmbh & Co. Kg Verfahren und Vorrichtung für ein dreidimensionales Vibrationssystem für Gießbehälter beim Lost-Foam-Gießverfahren
DE102006018810A1 (de) * 2006-04-22 2007-10-25 Kobra Formen Gmbh Vorrichtung zur Herstellung von Betonformsteinen mit einer Rütteleinrichtung und Aktuator
US7880369B2 (en) * 2006-11-21 2011-02-01 Goldman James A Mold including a piezoelectric power generating arrangement
US20080174041A1 (en) * 2007-01-23 2008-07-24 Douglas Keller Firedman Concrete block making machine and method
US20130259967A1 (en) * 2011-08-23 2013-10-03 Christopher T. Banus Vacuum vibration press for forming engineered composite stone slabs
US9073239B2 (en) 2011-08-23 2015-07-07 Christopher T Banus Vacuum vibration press for forming engineered composite stone slabs
US9731324B2 (en) * 2013-09-25 2017-08-15 Nordco Inc. Drive for railroad ballast tamper apparatus
CN112476720B (zh) * 2020-10-30 2022-04-05 上海筱启新能源科技集团有限公司 一种砖块冲压成型机
CN112405780A (zh) * 2020-10-30 2021-02-26 中民筑友房屋科技(石首)有限公司 一种装配式建材加工工具及其使用方法
DE102021113843A1 (de) 2021-05-28 2022-12-01 Tdk Electronics Ag Vorrichtung
CN116533350B (zh) * 2023-05-11 2024-01-02 湖南中志建材有限公司 一种grc构件浇筑设备
CN117381938B (zh) * 2023-10-30 2024-03-12 山东冠县美安复合材料有限公司 一种水泥预制构件浇筑装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2799071A (en) * 1955-03-21 1957-07-16 Robert E Schenk Magneto-striction device for casting
JPS6123551A (ja) * 1984-07-13 1986-02-01 Sintokogio Ltd 圧縮式鋳型造型機
CH664708A5 (en) * 1984-08-10 1988-03-31 Heinrich Blaser Concrete casting mould vibrator - uses oscillating body and generator comprising armature and two windings switched to capacitor
JPH01127239A (ja) * 1987-11-06 1989-05-19 Brother Ind Ltd 加工用振動テーブル
US5191688A (en) * 1989-07-27 1993-03-09 Olympus Optical Co., Ltd. Method for producing a superior longitudinal vibrator
JPH10195507A (ja) * 1996-12-27 1998-07-28 Nissan Motor Co Ltd 焼結部品の焼結方法および焼結炉
US5837298A (en) * 1997-10-15 1998-11-17 Face International Corp. Piezoelectrically-actuated vibrating surface-finishing tool

Also Published As

Publication number Publication date
DK1080858T3 (da) 2006-12-11
ATE341430T1 (de) 2006-10-15
ES2270763T3 (es) 2007-04-16
EP1080858A3 (fr) 2002-11-13
DE50013543D1 (de) 2006-11-16
US6402499B1 (en) 2002-06-11
DE19940119A1 (de) 2001-03-01
CA2316455C (fr) 2008-07-08
CA2316455A1 (fr) 2001-02-24
EP1080858A2 (fr) 2001-03-07

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