WO1995002550A1 - Vibrator for conveying or sorting small parts or powdery materials - Google Patents

Vibrator for conveying or sorting small parts or powdery materials Download PDF

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Publication number
WO1995002550A1
WO1995002550A1 PCT/CH1994/000144 CH9400144W WO9502550A1 WO 1995002550 A1 WO1995002550 A1 WO 1995002550A1 CH 9400144 W CH9400144 W CH 9400144W WO 9502550 A1 WO9502550 A1 WO 9502550A1
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WO
WIPO (PCT)
Prior art keywords
motor
axis
vibrating assembly
vibrating
actuating member
Prior art date
Application number
PCT/CH1994/000144
Other languages
French (fr)
Inventor
Georges Magnin
Original Assignee
Georges Magnin
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 Georges Magnin filed Critical Georges Magnin
Publication of WO1995002550A1 publication Critical patent/WO1995002550A1/en

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G27/00—Jigging conveyors
    • B65G27/10—Applications of devices for generating or transmitting jigging movements
    • B65G27/16—Applications of devices for generating or transmitting jigging movements of vibrators, i.e. devices for producing movements of high frequency and small amplitude
    • B65G27/26—Applications of devices for generating or transmitting jigging movements of vibrators, i.e. devices for producing movements of high frequency and small amplitude with elastic coupling between vibrator and load carrier

Definitions

  • the present invention relates to a vibrating device comprising a frame, a vibrating assembly supported relative to the frame by means of leaf springs so as to be able to perform a vibratory movement having a horizontal component and a vertical component, and a reciprocating motor device having a stator mounted on the frame and a movable member connected to the vibrating assembly by a coupling device, this coupling device comprising an actuating member integral with the movable member of the engine and a transmission device which comprises at least a flexible element in the vertical direction, fixed on one side to the actuating member and, on the other side, to the vibrating assembly.
  • Such a device can be used in particular for the transport of parts such as micro-technical parts or of pulverulent materials, along a linear or circular path, to carry out the transfer and / or sorting of the parts or materials transported.
  • the present invention aims in particular to provide a device of the type mentioned at the start which makes it possible to ensure the transmission of the movement of the motor device to the vibrating assembly in an efficient and safe manner by simple and economical means.
  • the invention further aims to provide a vibrating device allowing precise adjustment in amplitude and frequency of the vibratory movement as well as automatic regulation of these quantities so as to optimize the operating conditions of the device and to maintain these conditions during an operation. given.
  • the invention aims to eliminate the long and complicated adjustment often necessary in conventional vibrating devices.
  • the device according to the invention is characterized in that the transmission device comprises at least two flexible elements each fixed to one of the parts among the vibrating assembly and the actuating member, in respective locations. spaced, in the direction of the horizontal component of the vibratory movement, from the place or places of their attachment to the other part among this actuating member and this vibrating assembly, so that in each direction of the reciprocating movement of the member the flexible elements transmit the movement by traction.
  • Said flexible elements can be, for example, filiform elements or leaf springs and can have a common fixing point.
  • the motor device can comprise a rotary motor with vertical or horizontal axis.
  • the motor device can, in particular, comprise a multipolar motor with a movable permanent magnet.
  • the axis of the rotary motor can be coaxial with that of the vibrating assembly, or eccentric.
  • the transmission device may include two leaf springs arranged symmetrically with respect to this axis.
  • the fixing of the flexible elements is advantageously carried out in the vicinity of the periphery of the vibrating assembly.
  • the present device can, according to one of its embodiments, constitute a linear vibrator.
  • H may include a device for detecting the amplitude and / or the frequency of the vibratory movement, in particular such a detection device arranged to supply a control signal to a device for regulating the supply of the motor device.
  • fig. 1 is a side view of a linear vibrator according to the invention
  • fig. 2 is a side view of a first embodiment of a circular vibrator according to the invention
  • fig. 3 is a bottom view of the vibrator of FIG. 2, after cutting along the plane determined by the line III-III of FIG. 2,
  • fig. 4 is a side view of a second embodiment of a circular vibrator according to the invention.
  • fig. 5 is a top view of the vibrator of FIG. 4, after cutting along the plane determined for the line V-V of FIG. 4.
  • the linear vibrating device of fig. 1 comprises a vibrating plate 1 on which is fixed a guide 2 for a pulverulent product to be transported.
  • the plate 1 is supported by spring blades 3, 4 fixed by their respective ends on the one hand to the plate 1 and, on the other hand, to a frame 5 of the device.
  • a rotary motor 6 having a horizontal axis 7 comprises a stator 8 mounted on the frame. It is preferably of the multipolar magnetic rotor type, mounted in the air gaps of the U-shaped stator magnetic circuits.
  • the rotor preferably has the shape of a magnetized disc in the axial direction so as to present, along 'an annular zone of at least one of its flat surfaces, a series of alternately positive and negative poles which cooperate with poles of the magnetic circuits of the stator. These are coupled with at least one electric excitation coil supplied so as to actuate the rotor alternately in both directions.
  • an actuating member 9 in the form of a disc provided at its periphery with a fixing part 10 for a flexible transmission element 11, 12.
  • the latter can be constituted by a spring blade fixed in its middle to the part 10, the ends of the two portions 11 and 12 of this blade being fixed to a transmission part 13 in the shape of a stirrup, secured to the plate 1.
  • the two portions 11 and 12 of the transmission element transmit the movement to the part 13 by traction between the part 10 and the corresponding end of the part 13.
  • the flexibility in the vertical direction of the blade forming the transmission element allows the plate 1 to perform a vibratory movement having a horizontal component and a vertical component, the path of this movement being determined by the support blades 3 and 4.
  • the transmission member may in particular also be constituted by a filiform element, and more particularly by a flexible filiform element, such as a cable, the strands 11 and 12 working alternately in traction and being alternately discharged.
  • This arrangement not only makes it possible to transmit the movement from the axis of rotation to the vibrating plate by very simple means, but also to obtain a very long service life and safety of the transmission as well as silent operation. requiring no maintenance.
  • FIGS 2 and 3 illustrate the application of this transmission device in the case of a circular vibrator which is used for example in a known manner for sorting mechanical parts.
  • a vibrating plate 21 carries a container 22 in which the pieces to be sorted are located and which is supported by spring blades such as 23, 24 fixed on a frame 25.
  • the drive of the plate 21 is carried out in the peripheral direction around an axis of rotation 30 which is not materialized but determined by the support blades which are for example arranged in three places distributed regularly along the periphery of the plate.
  • the arrangement is such that a part fixing 31 of a transmission part 29 mounted on the axis 27, is located near the periphery of the plate 21.
  • a transmission piece 33 in the shape of a stirrup is fixed under the plate 21 in the tangential direction of the rotary movement around the axis 30.
  • Two strands 34, 35 of a filiform transmission member are fixed respectively between the ends of part 33 and part 31.
  • the eccentric arrangement of the axis of the motor 26 and, consequently, the drive of the plate 21 near the periphery thereof, makes it possible to reduce the torque necessary to make the assembly 21, 22 vibrate and is therefore particularly interesting in the case of relatively large vibrators.
  • the filiform member 34, 35 which has flexibility in the directions perpendicular to its axis, and each strand of which works alternately in traction for the transmission of movement in the direction of its length, is essential for the realization of this drive, because it adapts perfectly to the geometry of the transmission of the rotary movement of the part 29, oscillating around the axis 27, to the plate 21 oscillating around the axis 30 and further performing a movement in the direction vertical.
  • the filiform member can be flexible, the active strands for the transmission working in traction only.
  • FIGS 4 and 5 show a circular vibrator similar to that of Figures 2 and 3, in which the drive around the axis of the vibrator is carried out coaxially.
  • a motor 46 is mounted in the center of a frame 45 and its axis 47 is coupled to a plate 41 by means of a transmission device 42 constituted as follows.
  • Two spring blades 48, 49 are fixed by their ends respectively to a first and to a second transmission disc 43, 44 arranged coaxially, the first being integral with the plate 41 and the second being mounted on the axis 47. These two blades thus work alternately in traction for the transmission of movement and allow, thanks to their flexibility in the vertical direction, the vibration of the plate according to a vertical component and a horizontal component.
  • the drive of the present vibrators is preferably carried out at a frequency at least close to the natural frequency of the vibrating mechanical system. This achieves a high amplitude and therefore a high transport speed.
  • the frequency and the amplitude of the excitation current of the motors can be controlled from the detection of the movement of the oscillating assembly, for example by means of a Hall cell and a magnet secured respectively to the frame and to the oscillating assembly.
  • a control allows the drive to be adapted automatically, for example to the total mass of the parts subjected to vibration, to the distribution of the parts inside the container, etc. and maintain optimal working conditions during the whole sorting operation.
  • the precise adjustment of the amplitude and the frequency also makes it possible to achieve desired and perfectly reproducible transport conditions.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigging Conveyors (AREA)
  • Sorting Of Articles (AREA)

Abstract

A vibratory assembly (1, 2) is supported on a housing (5) by spring blades (3, 4). A rotary motor (6) with a reciprocating motion drives an actuating member (9) to which are secured (at 10) the first ends of two wire-shaped members (11, 12) whose second ends are secured in a part (13) rigidly secured to the vibratory assembly. The reciprocating motion of the actuating member is thus transmitted in both directions by the flexible traction members (11, 12).

Description

DISPOSITIF VIBREUR POUR LE TRANSPORT OU LE TRI DE PIECES OU DE MATERIAUX PULVERULENTS VIBRATOR DEVICE FOR THE TRANSPORT OR SORTING OF POWDERY PARTS OR MATERIALS
La présente invention concerne un dispositif vibreur comportant un bâti, un ensemble vibrant supporté par rapport au bâti par l'intermédiaire de lames ressorts de manière à pouvoir effectuer un mouvement vibratoire ayant une composante horizontale et une composante verticale, et un dispositif moteur à mouvement alternatif ayant un stator monté sur le bâti et un organe mobile relié à l'ensemble vibrant par un dispositif de couplage, ce dispositif de couplage comportant un organe d'actionnement solidaire de l'organe mobile du moteur et un dispositif de transmission qui comporte au moins un élément flexible dans le sens vertical, fixé d'un côté à l'organe d'actionnement et, de l'autre côté, à l'ensemble vibrant.The present invention relates to a vibrating device comprising a frame, a vibrating assembly supported relative to the frame by means of leaf springs so as to be able to perform a vibratory movement having a horizontal component and a vertical component, and a reciprocating motor device having a stator mounted on the frame and a movable member connected to the vibrating assembly by a coupling device, this coupling device comprising an actuating member integral with the movable member of the engine and a transmission device which comprises at least a flexible element in the vertical direction, fixed on one side to the actuating member and, on the other side, to the vibrating assembly.
Un tel dispositif peut être utilisé notamment pour le transport de pièces telles que des pièces micro-techniques ou de matériaux pulvérulents, le long d'un trajet linéaire ou circulaire, pour réaliser le transfert et/ou le tri des pièces ou matériaux transportés.Such a device can be used in particular for the transport of parts such as micro-technical parts or of pulverulent materials, along a linear or circular path, to carry out the transfer and / or sorting of the parts or materials transported.
Les dispositifs existants de ce type présentent de nombreux inconvénients. Il s'avère notamment qu'ils sont très limités en ce qui concerne la vitesse de transport, qu'ils nécessitent un réglage très délicat et complexe pour chaque cas d'application et qu'ils ne permettent pas de tenir compte des changements de paramètres au cours d'une opération de tri par exemple.Existing devices of this type have many drawbacks. It turns out in particular that they are very limited as regards the transport speed, that they require a very delicate and complex adjustment for each application case and that they do not make it possible to take account of changes in parameters. during a sorting operation for example.
La présente invention vise notamment à fournir un dispositif du type mentionné au début qui permet d'assurer la transmission du mouvement du dispositif moteur à l'ensemble vibrant de manière efficace et sûre par des moyens simples et économiques. L'invention vise en outre à fournir un dispositif vibreur permettant un réglage précis en amplitude et en fréquence du mouvement vibratoire ainsi qu'une régulation automatique de ces grandeurs de manière à optimiser les conditions de fonctionnement du dispositif et à maintenir ces conditions durant une opération donnée. Enfin, l'invention vise à supprimer le réglage long et compliqué souvent nécessaire dans les dispositifs vibreurs usuels.The present invention aims in particular to provide a device of the type mentioned at the start which makes it possible to ensure the transmission of the movement of the motor device to the vibrating assembly in an efficient and safe manner by simple and economical means. The invention further aims to provide a vibrating device allowing precise adjustment in amplitude and frequency of the vibratory movement as well as automatic regulation of these quantities so as to optimize the operating conditions of the device and to maintain these conditions during an operation. given. Finally, the invention aims to eliminate the long and complicated adjustment often necessary in conventional vibrating devices.
A cet effet, le dispositif selon l'invention est caractérisé en ce que le dispositif de transmission comporte au moins deux éléments flexibles fixés chacun à l'une des parties parmi l'ensemble vibrant et l'organe d'actionnement, en des endroits respectifs espacés, dans le sens de la composante horizontale du mouvement vibratoire, du ou des endroits de leur fixation à l'autre partie parmi cet organe d'actionnement et cet ensemble vibrant, de telle manière que dans chaque direction du mouvement alternatif de l'organe d'actionnement les éléments flexibles transmettent le mouvement par traction.To this end, the device according to the invention is characterized in that the transmission device comprises at least two flexible elements each fixed to one of the parts among the vibrating assembly and the actuating member, in respective locations. spaced, in the direction of the horizontal component of the vibratory movement, from the place or places of their attachment to the other part among this actuating member and this vibrating assembly, so that in each direction of the reciprocating movement of the member the flexible elements transmit the movement by traction.
Lesdits éléments flexibles peuvent être, par exemple, des éléments filiformes ou des lames ressorts et peuvent avoir un point de fixation commun.Said flexible elements can be, for example, filiform elements or leaf springs and can have a common fixing point.
Le dispositif moteur peut comporter un moteur rotatif à axe vertical ou horizontal. Le dispositif moteur peut, en particulier, comporter un moteur multipolaire à aimant permanent mobile.The motor device can comprise a rotary motor with vertical or horizontal axis. The motor device can, in particular, comprise a multipolar motor with a movable permanent magnet.
Dans le cas d'un vibreur circulaire, l'axe du moteur rotatif peut être coaxial avec celui de l'ensemble vibrant, ou excentré. Dans le cas où l'axe est coaxial, le dispositif de transmission peut comporter deux lames ressorts disposées de façon symétrique par rapport à cet axe. Dans le cas où l'axe est excentré, la fixation des éléments flexibles est avantageusement réalisée au voisinage de la périphérie de l'ensemble vibrant.In the case of a circular vibrator, the axis of the rotary motor can be coaxial with that of the vibrating assembly, or eccentric. In the case where the axis is coaxial, the transmission device may include two leaf springs arranged symmetrically with respect to this axis. In the case where the axis is eccentric, the fixing of the flexible elements is advantageously carried out in the vicinity of the periphery of the vibrating assembly.
Le présent dispositif peut, selon une de ses formes d'exécution, constituer un vibreur linéaire. H peut comporter un dispositif de détection de l'amplitude et/ou de la fréquence du mouvement vibratoire, notamment un tel dispositif de détection agencé pour fournir un signal de commande à un dispositif de régulation de l'alimentation du dispositif moteur.The present device can, according to one of its embodiments, constitute a linear vibrator. H may include a device for detecting the amplitude and / or the frequency of the vibratory movement, in particular such a detection device arranged to supply a control signal to a device for regulating the supply of the motor device.
D'autres caractéristiques, buts et avantages de la présente invention ressortiront de la description suivante de formes d'exécution du dispositif vibreur selon l'invention, indiquées à titre d'exemples et illustrées dans les dessins annexés dans lesquels : la fig. 1 est une vue latérale d'un vibreur linéaire selon l'invention,Other characteristics, aims and advantages of the present invention will emerge from the following description of embodiments of the vibrating device according to the invention, indicated by way of examples and illustrated in the appended drawings in which: fig. 1 is a side view of a linear vibrator according to the invention,
la fig. 2 est une vue latérale d'une première forme d'exécution d'un vibreur circulaire selon l'invention,fig. 2 is a side view of a first embodiment of a circular vibrator according to the invention,
la fig. 3 est une vue de dessous du vibreur de la fig. 2, après coupe selon le plan déterminé par la ligne lll-lll de la fig. 2,fig. 3 is a bottom view of the vibrator of FIG. 2, after cutting along the plane determined by the line III-III of FIG. 2,
la fig. 4 est une vue latérale d'une seconde forme d'exécution d'un vibreur circulaire selon l'invention, etfig. 4 is a side view of a second embodiment of a circular vibrator according to the invention, and
la fig. 5 est une vue de dessus du vibreur de la fig. 4, après coupe selon le plan déterminé pour la ligne V-V de la fig. 4.fig. 5 is a top view of the vibrator of FIG. 4, after cutting along the plane determined for the line V-V of FIG. 4.
Le dispositif vibreur linéaire de la fig. 1 comporte un plateau vibrant 1 sur lequel est fixé un guide 2 pour un produit pulvérulent à transporter. Le plateau 1 est supporté par des lames ressorts 3, 4 fixées par leurs extrémités respectives d'une part au plateau 1 et, d'autre part, à un bâti 5 du dispositif. Un moteur rotatif 6 ayant un axe horizontal 7 comporte un stator 8 monté sur le bâti. Il est de préférence du type à rotor aimanté, multipolaire, monté dans les entrefers de circuits magnétiques du stator en forme de U. Le rotor a de préférence la forme d'un disque aimanté dans le sens axial de façon à présenter, le long d'une zone annulaire d'au moins une de ses surfaces planes, une série de pôles alternativement positifs et négatifs qui coopèrent avec des pôles des circuits magnétiques du stator. Ceux-ci sont couplés avec au moins une bobine électrique d'excitation alimentée de façon à actionner le rotor alternativement dans les deux sens.The linear vibrating device of fig. 1 comprises a vibrating plate 1 on which is fixed a guide 2 for a pulverulent product to be transported. The plate 1 is supported by spring blades 3, 4 fixed by their respective ends on the one hand to the plate 1 and, on the other hand, to a frame 5 of the device. A rotary motor 6 having a horizontal axis 7 comprises a stator 8 mounted on the frame. It is preferably of the multipolar magnetic rotor type, mounted in the air gaps of the U-shaped stator magnetic circuits. The rotor preferably has the shape of a magnetized disc in the axial direction so as to present, along 'an annular zone of at least one of its flat surfaces, a series of alternately positive and negative poles which cooperate with poles of the magnetic circuits of the stator. These are coupled with at least one electric excitation coil supplied so as to actuate the rotor alternately in both directions.
Sur l'axe de rotation 7 du moteur 6 est monté un organe d'actionnement 9 sous forme d'un disque pourvu à sa périphérie d'une partie de fixation 10 pour un élément de transmission flexible 11 , 12. Ce dernier peut être constitué par une lame ressort fixée en son milieu à la partie 10, les extrémités des deux portions 11 et 12 de cette lame étant fixées à une pièce de transmission 13 en forme d'étrier, solidaire du plateau 1. Lors du mouvement alternatif de l'organe d'actionnement 9, les deux portions 11 et 12 de l'élément de transmission transmettent le mouvement à la pièce 13 par traction entre la partie 10 et l'extrémité correspondante de la pièce 13. La flexibilité dans le sens vertical de la lame formant l'élément de transmission permet au plateau 1 d'effectuer un mouvement vibratoire ayant une composante horizontale et une composante verticale, le chemin de ce mouvement étant déterminé par les lames de support 3 et 4.On the axis of rotation 7 of the motor 6 is mounted an actuating member 9 in the form of a disc provided at its periphery with a fixing part 10 for a flexible transmission element 11, 12. The latter can be constituted by a spring blade fixed in its middle to the part 10, the ends of the two portions 11 and 12 of this blade being fixed to a transmission part 13 in the shape of a stirrup, secured to the plate 1. During the reciprocating movement of the actuating member 9, the two portions 11 and 12 of the transmission element transmit the movement to the part 13 by traction between the part 10 and the corresponding end of the part 13. The flexibility in the vertical direction of the blade forming the transmission element allows the plate 1 to perform a vibratory movement having a horizontal component and a vertical component, the path of this movement being determined by the support blades 3 and 4.
L'organe de transmission peut notamment aussi être constitué par un élément filiforme, et plus particulièrement par un élément filiforme souple, tel qu'un câble, les brins 11 et 12 travaillant alternativement en traction et étant alternativement déchargés.The transmission member may in particular also be constituted by a filiform element, and more particularly by a flexible filiform element, such as a cable, the strands 11 and 12 working alternately in traction and being alternately discharged.
Cette disposition permet non seulement de réaliser la transmission du mouvement à partir de l'axe de rotation au plateau vibrant par des moyens très simples, mais aussi d'obtenir une très grande durée de vie et sécurité de la transmission ainsi qu'un fonctionnement silencieux ne nécessitant aucun entretien.This arrangement not only makes it possible to transmit the movement from the axis of rotation to the vibrating plate by very simple means, but also to obtain a very long service life and safety of the transmission as well as silent operation. requiring no maintenance.
Les figures 2 et 3 illlustrent l'application du présent dispositif de transmission au cas d'un vibreur circulaire qui sert par exemple de manière connue au tri de pièces mécaniques.Figures 2 and 3 illustrate the application of this transmission device in the case of a circular vibrator which is used for example in a known manner for sorting mechanical parts.
Un plateau vibrant 21 porte à cet effet un récipient 22 dans lequel se trouvent les pièces à trier et qui est supporté par des lames ressorts telles que 23, 24 fixées sur un bâti 25.For this purpose, a vibrating plate 21 carries a container 22 in which the pieces to be sorted are located and which is supported by spring blades such as 23, 24 fixed on a frame 25.
L'entraînement du plateau 21 est réalisé dans le sens périphérique autour d'un axe de rotation 30 non matérialisé mais déterminé par les lames de support qui sont par exemple disposées à trois endroits répartis régulièrement le long du pourtour du plateau.The drive of the plate 21 is carried out in the peripheral direction around an axis of rotation 30 which is not materialized but determined by the support blades which are for example arranged in three places distributed regularly along the periphery of the plate.
Un moteur rotatif à mouvement alternatif 26, similaire à celui du vibreur de la figure 1 , est monté sur le bâti 25 de façon que son axe 27 soit vertical et excentré par rapport à l'axe 30. La disposition est telle qu'une partie de fixation 31 d'une pièce de transmission 29 montée sur l'axe 27, se trouve à proximité de la périphérie du plateau 21. Une pièce de transmission 33 en forme d'étrier est fixée sous le plateau 21 dans la direction tangentielle du mouvement rotatif autour de l'axe 30. Deux brins 34, 35 d'un organe filiforme de transmission sont fixés respectivement entre les extrémités de la pièce 33 et la partie 31.A rotary reciprocating motor 26, similar to that of the vibrator of FIG. 1, is mounted on the frame 25 so that its axis 27 is vertical and eccentric with respect to the axis 30. The arrangement is such that a part fixing 31 of a transmission part 29 mounted on the axis 27, is located near the periphery of the plate 21. A transmission piece 33 in the shape of a stirrup is fixed under the plate 21 in the tangential direction of the rotary movement around the axis 30. Two strands 34, 35 of a filiform transmission member are fixed respectively between the ends of part 33 and part 31.
La disposition excentrée de l'axe du moteur 26 et, par conséquent, l'entraînement du plateau 21 à proximité de la périphérie de celui-ci, permet de réduire le couple nécessaire pour faire vibrer l'ensemble 21 , 22 et est donc particulièrement intéressant dans le cas de vibreurs relativement grands.The eccentric arrangement of the axis of the motor 26 and, consequently, the drive of the plate 21 near the periphery thereof, makes it possible to reduce the torque necessary to make the assembly 21, 22 vibrate and is therefore particularly interesting in the case of relatively large vibrators.
Il est à noter que l'organe filiforme 34, 35 qui présente une flexibilité dans les directions perpendiculaires à son axe, et dont chaque brin travaille alternativement en traction pour la transmission du mouvement dans le sens de sa longueur, est essentiel pour la réalisation de cet entraînement, car il s'adapte parfaitement à la géométrie de la transmission du mouvement rotatif de la pièce 29, oscillant autour de l'axe 27, au plateau 21 oscillant autour de l'axe 30 et effectuant en outre un mouvement dans le sens vertical. Comme dans le cas de la figure 1 , l'organe filiforme peut être souple, les brins actifs pour la transmission travaillant en traction uniquement.It should be noted that the filiform member 34, 35 which has flexibility in the directions perpendicular to its axis, and each strand of which works alternately in traction for the transmission of movement in the direction of its length, is essential for the realization of this drive, because it adapts perfectly to the geometry of the transmission of the rotary movement of the part 29, oscillating around the axis 27, to the plate 21 oscillating around the axis 30 and further performing a movement in the direction vertical. As in the case of FIG. 1, the filiform member can be flexible, the active strands for the transmission working in traction only.
Il est en outre à remarquer que l'utilisation d'un organe filiforme permet, dans le cas de la figure 1 comme dans le cas des figures 2 et 3, de disposer l'axe du moteur d'entraînement dans le sens horizontal ou dans le sens vertical. Bien entendu, plusieurs moteurs alimentés en synchronisme peuvent être prévus le long du chemin du mouvement horizontal des plateaux vibrants.It should also be noted that the use of a threadlike member makes it possible, in the case of FIG. 1 as in the case of FIGS. 2 and 3, to have the axis of the drive motor in the horizontal direction or in the vertical direction. Of course, several motors supplied in synchronism can be provided along the path of the horizontal movement of the vibrating plates.
Les figures 4 et 5 montrent un vibreur circulaire similaire à celui des figures 2 et 3, dans lequel l'entraînement autour de l'axe du vibreur s'effectue de façon coaxiale. Ainsi, un moteur 46 est monté au centre d'un bâti 45 et son axe 47 est couplé à un plateau 41 par l'intermédiaire d'un dispositif de transmission 42 constitué comme suit.Figures 4 and 5 show a circular vibrator similar to that of Figures 2 and 3, in which the drive around the axis of the vibrator is carried out coaxially. Thus, a motor 46 is mounted in the center of a frame 45 and its axis 47 is coupled to a plate 41 by means of a transmission device 42 constituted as follows.
Deux lames ressorts 48, 49 sont fixées par leurs extrémités respectivement à un premier et à un second disque de transmission 43, 44 disposés coaxialement, le premier étant solidaire du plateau 41 et le second étant monté sur l'axe 47. Ces deux lames travaillent ainsi alternativement en traction pour la transmission du mouvement et permettent, grâce à leur flexibilité dans le sens vertical, la vibration du plateau selon une composante verticale et une composante horizontale.Two spring blades 48, 49 are fixed by their ends respectively to a first and to a second transmission disc 43, 44 arranged coaxially, the first being integral with the plate 41 and the second being mounted on the axis 47. These two blades thus work alternately in traction for the transmission of movement and allow, thanks to their flexibility in the vertical direction, the vibration of the plate according to a vertical component and a horizontal component.
L'entraînement des présents vibreurs est réalisé de préférence à une fréquence au moins proche de la fréquence propre du système mécanique vibrant. Ceci permet d'atteindre une amplitude élevée et par conséquent une grande vitesse de transport.The drive of the present vibrators is preferably carried out at a frequency at least close to the natural frequency of the vibrating mechanical system. This achieves a high amplitude and therefore a high transport speed.
La fréquence et l'amplitude du courant d'excitation des moteurs peut être asservie à partir de la détection du mouvement de l'ensemble oscillant, par exemple au moyen d'une cellule de Hall et d'un aimant solidaires respectivement du bâti et de l'ensemble oscillant. Un tel asservissement permet d'adapter l'entraînement automatiquement par exemple à la masse totale des pièces soumises à la vibration, à la répartition des pièces à l'intérieur du récipient etc. et de maintenir des conditions de travail optimales durant l'ensemble de l'opération de tri. Dans le cas d'un vibreur transporteur linéaire, le réglage précis de l'amplitude et de la fréquence permet de réaliser également des conditions de transport souhaitées et parfaitement reproductibles. The frequency and the amplitude of the excitation current of the motors can be controlled from the detection of the movement of the oscillating assembly, for example by means of a Hall cell and a magnet secured respectively to the frame and to the oscillating assembly. Such a control allows the drive to be adapted automatically, for example to the total mass of the parts subjected to vibration, to the distribution of the parts inside the container, etc. and maintain optimal working conditions during the whole sorting operation. In the case of a linear conveyor vibrator, the precise adjustment of the amplitude and the frequency also makes it possible to achieve desired and perfectly reproducible transport conditions.

Claims

REVENDICATIONS
1. Dispositif vibreur comportant un bâti, un ensemble vibrant supporté par rapport au bâti par l'intermédiaire de lames ressorts de manière à pouvoir effectuer un mouvement vibratoire ayant une composante horizontale et une composante verticale, et un dispositif moteur à mouvement alternatif ayant un stator monté sur le bâti et un organe mobile relié à l'ensemble vibrant par un dispositif de couplage, ce dispositif de couplage comportant un organe d'actionnement solidaire de l'organe mobile du moteur et un dispositif de transmission qui comporte au moins un élément flexible dans le sens vertical, fixé d'un côté à l'organe d'actionnement et, de l'autre côté, à l'ensemble vibrant, caractérisé en ce que le dispositif de transmission comporte au moins deux éléments flexibles fixés chacun à l'une des parties parmi l'ensemble vibrant et l'organe d'actionnement, en des endroits respectifs espacés, dans le sens de la composante horizontale du mouvement vibratoire, du ou des endroits de leur fixation à l'autre partie parmi cet organe d'actionnement et cet ensemble vibrant, de telle manière que dans chaque direction du mouvement alternatif de l'organe d'actionnement les éléments flexibles transmettent le mouvement par traction.1. Vibrating device comprising a frame, a vibrating assembly supported with respect to the frame by means of leaf springs so as to be able to carry out a vibratory movement having a horizontal component and a vertical component, and a reciprocating motor device having a stator mounted on the frame and a movable member connected to the vibrating assembly by a coupling device, this coupling device comprising an actuating member secured to the movable member of the engine and a transmission device which comprises at least one flexible element in the vertical direction, fixed on one side to the actuating member and, on the other side, to the vibrating assembly, characterized in that the transmission device comprises at least two flexible elements each fixed to the one of the parts among the vibrating assembly and the actuating member, in respective spaced locations, in the direction of the horizontal component of the vibratory movement, of the or places of their attachment to the other part among this actuating member and this vibrating assembly, so that in each direction of the reciprocating movement of the actuating member the flexible elements transmit the movement by traction.
2. Dispositif selon la revendication 1 , caractérisé en ce que les éléments flexibles sont des éléments filiformes.2. Device according to claim 1, characterized in that the flexible elements are filiform elements.
3. Dispositif selon la revendication 1 , caractérisé en ce que les éléments flexibles sont des lames ressorts.3. Device according to claim 1, characterized in that the flexible elements are leaf springs.
4. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'il comporte deux éléments flexibles ayant un point de fixation commun.4. Device according to one of the preceding claims, characterized in that it comprises two flexible elements having a common fixing point.
5. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le dispositif moteur comporte un moteur rotatif à axe vertical.5. Device according to one of the preceding claims, characterized in that the motor device comprises a rotary motor with vertical axis.
6. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que le dispositif moteur comporte un moteur rotatif à axe horizontal. 6. Device according to one of claims 1 to 4, characterized in that the motor device comprises a rotary motor with horizontal axis.
7. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le dispositif moteur comporte un moteur multipolaire à aimant permanent mobile.7. Device according to one of the preceding claims, characterized in that the motor device comprises a multipolar motor with movable permanent magnet.
8. Dispositif selon la revendication 7 utilisant un moteur rotatif, caractérisé en ce que l'organe mobile du moteur comporte un disque aimanté dans le sens axial le long d'au moins une zone annulaire de façon à présenter sur au moins une de ses surfaces planes au moins une série de pôles de même signe, ce disque étant monté de façon que les dits pôles soient déplaçables dans des entrefers de circuits magnétiques faisant partie du stator du moteur et comportant chacun un empilage de tôles en forme de U, l'ensemble des circuits magnétiques étant couplés avec au moins une bobine disposée coaxialement par rapport à l'axe du disque.8. Device according to claim 7 using a rotary motor, characterized in that the movable member of the motor comprises a disc magnetized in the axial direction along at least one annular zone so as to present on at least one of its surfaces planes at least one series of poles of the same sign, this disc being mounted so that said poles are movable in air gaps of magnetic circuits forming part of the stator of the motor and each comprising a stack of U-shaped sheets, the assembly magnetic circuits being coupled with at least one coil arranged coaxially with respect to the axis of the disc.
9. Dispositif selon les revendications 1 et 5, constituant un vibreur circulaire, caractérisé en ce que l'axe du moteur est coaxial avec celui de l'ensemble vibrant.9. Device according to claims 1 and 5, constituting a circular vibrator, characterized in that the axis of the motor is coaxial with that of the vibrating assembly.
10. Dispositif selon la revendication 9, caractérisé en ce que le dispositif de transmission comporte deux lames ressorts disposées de façon symétrique par rapport à l'axe du moteur.10. Device according to claim 9, characterized in that the transmission device comprises two leaf springs arranged symmetrically with respect to the axis of the motor.
11. Dispositif selon les revendications 1 et 5, constituant un vibreur circulaire, caractérisé en ce que l'axe du moteur est excentré par rapport à l'axe de l'ensemble vibrant.11. Device according to claims 1 and 5, constituting a circular vibrator, characterized in that the axis of the motor is eccentric relative to the axis of the vibrating assembly.
12. Dispositif selon la revendication 11 , caractérisé en ce que la fixation des éléments flexibles est réalisée au voisinage de la périphérie de l'ensemble vibrant.12. Device according to claim 11, characterized in that the fixing of the flexible elements is carried out in the vicinity of the periphery of the vibrating assembly.
13. Dispositif selon les revendications 1 et 5 ou 1 et 6 constituant un vibreur linéaire.13. Device according to claims 1 and 5 or 1 and 6 constituting a linear vibrator.
14. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'il comporte un dispositif de détection de l'amplitude et/ou de la fréquence du mouvement vibratoire. 14. Device according to one of the preceding claims, characterized in that it comprises a device for detecting the amplitude and / or the frequency of the vibratory movement.
15. Dispositif selon la revendication 14, caractérisé en ce que le dispositif de détection est agencé pour fournir un signal de commande à un dispositif de régulation de l'alimentation du dispositif moteur. 15. Device according to claim 14, characterized in that the detection device is arranged to supply a control signal to a device for regulating the supply of the motor device.
PCT/CH1994/000144 1993-07-16 1994-07-08 Vibrator for conveying or sorting small parts or powdery materials WO1995002550A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH214793 1993-07-16
CH2147/93-2 1993-07-16

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WO1995002550A1 true WO1995002550A1 (en) 1995-01-26

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FR (1) FR2707532A1 (en)
IT (1) IT1272329B (en)
WO (1) WO1995002550A1 (en)

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Publication number Priority date Publication date Assignee Title
WO2010134943A1 (en) 2009-05-22 2010-11-25 Soft Tissue Regeneration, Inc. Mechanically competent scaffold for ligament and tendon regeneration
WO2013139955A1 (en) 2012-03-22 2013-09-26 Trb Chemedica International S.A. Method for repair of ligament or tendon
US9433489B2 (en) 2013-03-12 2016-09-06 Soft Tissue Regeneration, Inc. Absorbable synthetic braided matrix for breast reconstruction and hernia repair
WO2017165889A2 (en) 2016-03-25 2017-09-28 Biorez, Inc. Complex braided scaffolds for improved tissue regeneration

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
CN113478448A (en) * 2021-06-09 2021-10-08 渭南高新区木王科技有限公司 Full-automatic needle head shaking machine

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US1160427A (en) * 1911-08-24 1915-11-16 Hermann Marcus Conveying mechanism.
AT97476B (en) * 1922-05-23 1924-07-10 Amme Giesecke & Konegen Ag Drive for vibrating chutes, vibrating sieves, etc. like
US3605996A (en) * 1969-06-25 1971-09-20 State Steel Products Inc Material handling apparatus and means to impart vibratory forces thereto

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1160427A (en) * 1911-08-24 1915-11-16 Hermann Marcus Conveying mechanism.
AT97476B (en) * 1922-05-23 1924-07-10 Amme Giesecke & Konegen Ag Drive for vibrating chutes, vibrating sieves, etc. like
US3605996A (en) * 1969-06-25 1971-09-20 State Steel Products Inc Material handling apparatus and means to impart vibratory forces thereto

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010134943A1 (en) 2009-05-22 2010-11-25 Soft Tissue Regeneration, Inc. Mechanically competent scaffold for ligament and tendon regeneration
US8486143B2 (en) 2009-05-22 2013-07-16 Soft Tissue Regeneration, Inc. Mechanically competent scaffold for ligament and tendon regeneration
WO2013139955A1 (en) 2012-03-22 2013-09-26 Trb Chemedica International S.A. Method for repair of ligament or tendon
US9649190B2 (en) 2012-03-22 2017-05-16 Trb Chemedica International S.A. Method for repair of ligament or tendon
US9433489B2 (en) 2013-03-12 2016-09-06 Soft Tissue Regeneration, Inc. Absorbable synthetic braided matrix for breast reconstruction and hernia repair
WO2017165889A2 (en) 2016-03-25 2017-09-28 Biorez, Inc. Complex braided scaffolds for improved tissue regeneration

Also Published As

Publication number Publication date
ITRM940458A0 (en) 1994-07-14
FR2707532A1 (en) 1995-01-20
IT1272329B (en) 1997-06-16
ITRM940458A1 (en) 1996-01-14

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