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WO2003107730A1 - System for conveying electronic components - Google Patents

System for conveying electronic components Download PDF

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Publication number
WO2003107730A1
WO2003107730A1 PCT/CH2003/000322 CH0300322W WO03107730A1 WO 2003107730 A1 WO2003107730 A1 WO 2003107730A1 CH 0300322 W CH0300322 W CH 0300322W WO 03107730 A1 WO03107730 A1 WO 03107730A1
Authority
WO
WIPO (PCT)
Prior art keywords
component
electronic component
component holder
compressed air
conveying system
Prior art date
Application number
PCT/CH2003/000322
Other languages
French (fr)
Inventor
Davy Cretenet
Original Assignee
Ismeca Semiconductor Holding Sa
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 Ismeca Semiconductor Holding Sa filed Critical Ismeca Semiconductor Holding Sa
Priority to AU2003223824A priority Critical patent/AU2003223824A1/en
Publication of WO2003107730A1 publication Critical patent/WO2003107730A1/en

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Classifications

    • 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
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/52—Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices
    • B65G47/525—Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices using fluid jets

Definitions

  • the present invention relates to a conveyor system for electronic components, in particular a conveyor system for sorting electronic components.
  • the processing lines of electronic components generally comprise a main processing line, for example circular, along which the electronic components undergo a succession of operations, for example electrical or mechanical tests, or conditioning operations.
  • the number of treatment stations that can be arranged along these treatment lines is generally limited, in particular around a circular line usually comprising a barrel at the periphery of which are available a determined number of locations corresponding to the steps of its movement. rotary indexed.
  • each component may be desirable to separate electronic components into different categories, for example based on the results of the tests. It is thus necessary to bring each component to an outlet station reserved for the components of its category, for example a container or a packaging station.
  • an additional conveyor one end of which occupies a single location, for example the location following the location of the last processing station determining the sorting criteria.
  • the electronic components to be sorted are deposited from the main processing line on the additional conveyor, along which the various output stations are arranged. Each electronic component to be sorted is brought on the additional conveyor to the exit station corresponding to its category.
  • Such a conveyor is for example mentioned in the patent US-4485914.
  • Such a device must be precise and rapid in order to evacuate the desired electronic component to the correct outlet station while not slowing down the rate of the processing line, this is thus, for example, to avoid use slow and complex mechanical elements.
  • the devices of the prior art for the evacuation of electronic components such as for example the gripping devices, for example pliers, or the nozzles sucking the electronic components by air vacuum, generally involve a substantial number of parts. mechanical in movement and their processing speed is often limited. In addition, due to their complexity, these devices are often expensive, which is a significant disadvantage, in particular in a conveyor system for sorting electronic components where the number of output stations, and consequently the number of devices evacuation, can be relatively high.
  • An object of the invention is therefore to propose a system for conveying electronic components comprising a simple device for discharging electronic components.
  • Another object of the invention is to propose a system for conveying electronic components comprising a rapid device for removing the components.
  • Another object of the invention is to propose a system for conveying electronic components comprising a precise device for removing the components.
  • Another object of the invention is to propose a system for conveying electronic components comprising a device for removing the components involving a minimum of moving mechanical parts.
  • a system for conveying electronic components comprising a conveyor, at least one component holder for transporting electronic components and at least one compressed air outlet for discharging the electronic components from the component holder, thus allowing rapid and precise evacuation of components, without the use of moving mechanical parts.
  • Figure 1 is a top section along the axis l-l of the conveyor system according to the preferred version of the invention.
  • Figure 2 is a side section along the axis II-II of the conveyor system according to the preferred version of the invention.
  • Figure 3 is a detail illustrating more particularly the device for removing electronic components.
  • Figure 4 is a section along the axis IV-IV of the evacuation device.
  • the conveyor system according to the invention illustrated in FIG. 2 comprises a conveyor in the form of a conveyor belt 1 on which component holders 2 are regularly arranged.
  • each component holder 2 is intended to receive a single electronic component 9.
  • the electronic components 9 are deposited on the conveyor belt 1 for example from a line of main treatment on which they have for example been tested electrically.
  • the main processing line 8 comprises for example a circular conveyor in the form of a barrel whose rotary movement is indexed so as to present at each step one of its component carriers 80 above the conveyor belt 1.
  • the movement of the conveyor belt 1 is preferably also indexed and synchronized with the movement of the main processing line 8, thus presenting a new component holder 2 under the component holder 80 of the barrel at each step of the conveyor of the main processing line 8.
  • Each electronic component 9 transported by the main processing line 8 can thus be deposited on an empty component carrier 2 of the treadmill 1.
  • Exit stations for example containers 4 which can accommodate several components, are arranged along the conveyor belt 1.
  • the conveyor system according to the invention can thus be used for example for sorting electronic components 9 that it transports by evacuating them each in one of the containers 4 according to certain characteristics, for example according to the results of previous tests.
  • Each container 4 corresponds to a compressed air outlet 30 allowing the evacuation of an electronic component 9 from a component holder 2 to the corresponding container 4, as indicated by the arrows b in FIG. 1.
  • the outlets air 30 are arranged so as to be able to evacuate the electronic components 9 during the downtime of the treadmill 1.
  • the air outlets 30 are preferably made up of tubes, the lower part of which is maintained at an angle substantially equal to 45 degrees to the vertical in a frame 3 covering the portion of the treadmill 1 located between the exit stations 4.
  • the conveyor belt 1 is driven in the direction of arrow a by an indexed motor represented diagrammatically by the wheels 11 (FIG. 2).
  • the component holder 2 is attached, for example glued, screwed or riveted, to the belt 10 of the treadmill 1.
  • the belt 10 slides in a rail 12 serving both as a guide and as a guide. support thus ensuring the correct positioning of the component holder 2 relative to to the container 4 and to the compressed air outlet 30 and also ensuring its stability during the evacuation of the electronic component 9.
  • the device for removing the electronic components 9 essentially comprises the compressed air outlet 30 associated with the rest surface 20 of the component holder 2 as well as guides materialized by the side walls 21 of the component holder 2.
  • the outlet compressed air preferably consists of a tube 30 whose lower part is maintained at an angle substantially equal to 45 degrees relative to the vertical in the frame 3 and connected by its upper end to a pneumatic system not shown.
  • the lower end of the tube 30 is kept a short distance from the component holder 2, near the end of the rest surface 20 opposite the opening 40 of the container 4. If the electronic component 9 located on the holder component 2 must be discharged into the container 4, a jet of compressed air is blown into the tube 30.
  • the breath of air is guided between the side walls 21 of the component holder 2 along the rest surface 20 in the direction of the electronic component 9 which it carries with it towards the opening 40 of the container 4.
  • the frame 3 has a clearance 31 facing the opening 40 of the container 4 allowing access of the electronic component 9 to the container 4.
  • the rest surface 20 on which the electronic component 9 is deposited is preferably elliptical and concave, thus imparting to the electronic component 9 an elliptical trajectory during its evacuation, preventing it from being projected horizontally through the opening 40 against the opposite wall of the container 4.
  • the electronic component 9 can be removed either from one side or the other of the rest surface 20 depending on the position of the compressed air outlet 30, thus allowing the arrangement of receptacles 4 on both sides of the conveyor belt 1.
  • the frame 3 covers the component holder 2 so as to prevent the electronic components 9 from coming out involuntarily, for example during movement of the treadmill 1.
  • the electronic component 9 tends to slide towards the center of the component holder 2 under the effect of gravity alone, regardless of the precision with which it has been removed, thus ensuring its correct positioning before being evacuated by the blast of compressed air.
  • the electronic components 9 After being deposited by the main processing line 8 on the component carriers 2, the electronic components 9 are transported by the conveyor belt 1 to a series of containers 4 in which they are evacuated according to characteristics determined previously, for example in function of the results of electrical tests carried out on the main treatment line 8.
  • Each container 4 corresponds to a compressed air outlet 30, thus forming each time a discharge device as described above.
  • a jet of compressed air is rapidly expelled by the compressed air outlet 30 in question. The air scans the rest surface 20 of the component holder 2 from the compressed air outlet 30 towards the container 4, carrying with it the electronic component 9 which is thus evacuated in the container 4.
  • the side walls 21 of the holder component 2 serve as a guide for the compressed air jet and prevent the electronic component 9 from going out of its path.
  • the clearance 31 in the frame 3 also makes it possible to ensure the trajectory of the electronic component 9 and to allow its access to the opening 40 of the container 4.
  • the evacuation of the electronic components 9 from their component holder 2 thus does not involve the movement of any mechanical element.
  • the electronic component 9 is quickly removed and its accuracy is guaranteed by the shape of the rest surface 20, associated with the direction of the compressed air outlet 30.
  • the position of the air outlets 30 above one of the ends of the component carriers 2 allows the evacuation of the electronic components 9 from one side or the other of the treadmill 1.
  • the orientation of the lower part tubes 30, which is preferably inclined towards the surfaces of rest 20 at an angle substantially equal to 45 degrees relative to the vertical, associated with the elliptical shape of the rest surfaces 20 allow rapid and efficient evacuation of the electronic components 9 without the jets of compressed air being directed directly against them, thus avoiding too direct or too abrupt evacuation which could damage them.
  • the air jet of each evacuation device is preferably directed against a part of the rest surface 20 free of any electronic component, preferably just in front of the electronic component 9 to be evacuated.
  • the inclination of the rest surface 20 guides the air jet towards the electronic component 9.
  • the shock wave that represents the air jet immediately after its exit from the tube 30 is substantially attenuated.
  • the air blast thus slides on the rest surface 20 lifting the electronic component 9 while pushing it laterally towards the opening 40 of the container 4, thus also preventing it from being trapped on the component holder 2, for example because of the roughness of the rest surface 20.
  • the lower part of the tubes 30 can in particular be positioned vertically above one of the ends of the resting surface 20.
  • the air outlets can also be located under the electronic components to be evacuated, provided however an adaptation of the holders components 2.
  • the indexed and synchronized movement of the main processing line 8 and the conveyor belt 1 allows a controller, not shown, to know at all times the exact position of each electronic component 9, thus allowing the sorting of these electronic components 9 in the different containers. 4 depending on certain parameters.
  • the controller is for example informed by the test stations of the main processing line 8 of the results of the tests carried out on each electronic component 9.
  • the controller thus determines, as a function of these results and according to predetermined criteria, to which container 4 each electronic component 9 must be removed. Knowing at all times the position of each electronic component 9, the controller transmits to each step of the treadmill 1 orders the pneumatic system to expel an air jet through each compressed air outlet 30 near which there is an electronic component 9 to be evacuated to the corresponding container 4.
  • the movement of the conveyor 1 is continuous, simplifying its drive but requiring greater precision from the controller.
  • the trajectory of the electronic components 9 during their evacuation is partly determined by the side walls 21 of the component holder 2 thus acting in the manner of guides.
  • this guiding function can be fulfilled by other forms of guides, such as for example rails or slides formed directly on the rest surface 20, portions of the frame 3, a pipe in which the electronic component 9 is deposited and at one end of which a jet of compressed air is blown to evacuate the electronic component 9 through the other end, etc.
  • the air outlets 30 can be replaced by air intakes connected to a pneumatic system allowing the suction of the electronic components 9 to the corresponding receptacles 4, this execution having however the main disadvantage of making control awkward trajectory and evacuation force of the electronic components, risking damage to the components.
  • the conveyor of the conveyor system according to the invention may also be different from a conveyor belt. It can for example be a circular conveyor comprising a barrel, etc.
  • the rest surfaces on which the electronic components are deposited are integrated into the conveyor. They are for example directly formed on the upper surface of the conveyor belt or on the periphery of the circular conveyor.
  • the conveyor is a conveyor belt, the belt of which is formed by a succession of component carriers flexibly connected together.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Specific Conveyance Elements (AREA)

Abstract

The invention concerns a system for conveying electronic components comprising a conveyor (1) and at least a component-holder (2) for transporting electronic components (9) and at least a compressed air outlet (30) for evacuating the electronic components (9) from the component-holder(s), thereby providing fast and accurate evacuation of the electronic components (9), without using any moving mechanical part.

Description

Système de convoyage de composants électroniques Conveying system for electronic components
La présente invention concerne un système de convoyage de composants électroniques, en particulier un système de convoyage pour le tri de composants électroniques.The present invention relates to a conveyor system for electronic components, in particular a conveyor system for sorting electronic components.
Les lignes de traitement de composants électroniques comportent généralement une ligne de traitement principale, par exemple circulaire, le long de laquelle les composants électroniques subissent une succession d'opérations, par exemple des tests électriques ou mécaniques, ou des opérations de conditionnement. Le nombre de postes de traitement pouvant être disposés le long de ces lignes de traitement est généralement limité, en particulier autour d'une ligne circulaire comprenant habituellement un barillet à la périphérie duquel sont disponibles un nombre déterminé d'emplacements correspondant aux pas de son mouvement rotatif indexé.The processing lines of electronic components generally comprise a main processing line, for example circular, along which the electronic components undergo a succession of operations, for example electrical or mechanical tests, or conditioning operations. The number of treatment stations that can be arranged along these treatment lines is generally limited, in particular around a circular line usually comprising a barrel at the periphery of which are available a determined number of locations corresponding to the steps of its movement. rotary indexed.
A la suite de tests, par exemple, il peut être désirable de séparer les composants électroniques en différentes catégories, par exemple en fonction des résultats des tests. Il faut ainsi amener chaque composant vers un poste de sortie réservé aux composants de sa catégorie, par exemple un récipient ou un poste de conditionnement. Afin d'éviter d'occuper un emplacement le long de la ligne principale pour chaque poste de sortie, il peut être fait usage d'un convoyeur supplémentaire dont une extrémité occupe un seul emplacement, par exemple l'emplacement suivant l'emplacement du dernier poste de traitement déterminant les critères de tri. Les composants électroniques à trier sont déposés depuis la ligne de traitement principale sur le convoyeur supplémentaire, le long duquel sont disposés les différents postes de sortie. Chaque composant électronique à trier est amené sur le convoyeur supplémentaire vers le poste de sortie correspondant à sa catégorie. Un tel convoyeur est par exemple évoqué dans le brevet US-4485914.Following tests, for example, it may be desirable to separate electronic components into different categories, for example based on the results of the tests. It is thus necessary to bring each component to an outlet station reserved for the components of its category, for example a container or a packaging station. In order to avoid occupying a location along the main line for each exit station, use may be made of an additional conveyor, one end of which occupies a single location, for example the location following the location of the last processing station determining the sorting criteria. The electronic components to be sorted are deposited from the main processing line on the additional conveyor, along which the various output stations are arranged. Each electronic component to be sorted is brought on the additional conveyor to the exit station corresponding to its category. Such a conveyor is for example mentioned in the patent US-4485914.
Un point critique de tout système de convoyage de composants électroniques, et en particulier d'un système de convoyage pour le tri de composants électroniques tel qu'évoqué ci-dessus, est le dispositif d'évacuation des composants vers le ou les postes de sortie. Un tel dispositif doit être précis et rapide afin d'évacuer le composant électronique désiré vers le bon poste de sortie tout en ne ralentissant pas la cadence de la ligne de traitement, il s'agit ainsi, par exemple, d'éviter l'utilisation d'éléments mécaniques lents et complexes.A critical point in any conveyor system for electronic components, and in particular a conveyor system for sorting electronic components as mentioned above, is the device for evacuating the components to the outlet (s). Such a device must be precise and rapid in order to evacuate the desired electronic component to the correct outlet station while not slowing down the rate of the processing line, this is thus, for example, to avoid use slow and complex mechanical elements.
Ainsi les dispositifs de l'art antérieur pour l'évacuation des composants électroniques, tels que par exemple les dispositifs de préhension, par exemple des pinces, ou les buses aspirant les composants électroniques par vide d'air, impliquent généralement un nombre conséquent de pièces mécaniques en mouvement et leur vitesse de traitement s'en trouve souvent limitée. De plus, de par leur complexité, ces dispositifs sont souvent coûteux, ce qui est un désavantage non négligeable, en particulier dans un système de convoyage pour le tri de composants électroniques où le nombre de postes de sortie, et par conséquent le nombre de dispositifs d'évacuation, peut être relativement élevé.Thus the devices of the prior art for the evacuation of electronic components, such as for example the gripping devices, for example pliers, or the nozzles sucking the electronic components by air vacuum, generally involve a substantial number of parts. mechanical in movement and their processing speed is often limited. In addition, due to their complexity, these devices are often expensive, which is a significant disadvantage, in particular in a conveyor system for sorting electronic components where the number of output stations, and consequently the number of devices evacuation, can be relatively high.
Un but de l'invention est par conséquent de proposer un système de convoyage de composants électroniques comprenant un dispositif simple d'évacuation des composants électroniques.An object of the invention is therefore to propose a system for conveying electronic components comprising a simple device for discharging electronic components.
Un autre but de l'invention est de proposer un système de convoyage de composants électroniques comprenant un dispositif rapide d'évacuation des composants.Another object of the invention is to propose a system for conveying electronic components comprising a rapid device for removing the components.
Un autre but de l'invention est de proposer un système de convoyage de composants électroniques comprenant un dispositif précis d'évacuation des composants.Another object of the invention is to propose a system for conveying electronic components comprising a precise device for removing the components.
Un autre but de l'invention est de proposer un système de convoyage de composants électroniques comprenant un dispositif d'évacuation des composants impliquant un minimum de pièces mécaniques en mouvement. Ces buts sont atteints par un système de convoyage de composants électroniques possédant les caractéristiques de la revendication indépendante, les caractéristiques de variantes préférentielles de l'invention étant décrites dans les revendications dépendantes.Another object of the invention is to propose a system for conveying electronic components comprising a device for removing the components involving a minimum of moving mechanical parts. These objects are achieved by a system for conveying electronic components having the characteristics of the independent claim, the characteristics of preferred variants of the invention being described in the dependent claims.
En particulier, ces buts sont atteints par un système de convoyage de composants électroniques comprenant un convoyeur, au moins un porte-composant pour le transport de composants électroniques et au moins une sortie d'air comprimé pour l'évacuation des composants électroniques du ou des porte-composants, permettant ainsi l'évacuation rapide et précise des composants, sans utilisation de pièce mécanique en mouvement.In particular, these aims are achieved by a system for conveying electronic components comprising a conveyor, at least one component holder for transporting electronic components and at least one compressed air outlet for discharging the electronic components from the component holder, thus allowing rapid and precise evacuation of components, without the use of moving mechanical parts.
La présente invention sera mieux comprise à l'aide de la description de sa version préférentielle donnée à titre d'exemple illustratif mais non-limitatif et illustrée par les figures 1 à 4.The present invention will be better understood using the description of its preferred version given by way of illustrative but non-limiting example and illustrated by FIGS. 1 to 4.
La figure 1 est une coupe de dessus selon l'axe l-l du système de convoyage selon la version préférentielle de l'invention.Figure 1 is a top section along the axis l-l of the conveyor system according to the preferred version of the invention.
La figure 2 est une coupe latérale selon l'axe ll-ll du système de convoyage selon la version préférentielle de l'invention.Figure 2 is a side section along the axis II-II of the conveyor system according to the preferred version of the invention.
La figure 3 est un détail illustrant plus particulièrement le dispositif d'évacuation des composants électroniques.Figure 3 is a detail illustrating more particularly the device for removing electronic components.
La figure 4 est une coupe selon l'axe IV-IV du dispositif d'évacuation.Figure 4 is a section along the axis IV-IV of the evacuation device.
Dans sa version préférentielle, le système de convoyage selon l'invention illustré sur la figure 2 comprend un convoyeur sous la forme d'un tapis roulant 1 sur lequel sont régulièrement disposés des porte- composants 2. De préférence, chaque porte-composant 2 est destiné à recevoir un seul composant électronique 9. Les composants électroniques 9 sont déposés sur le tapis roulant 1 par exemple depuis une ligne de traitement principale sur lesquels ils ont par exemple été testés électriquement. La ligne de traitement principale 8 comprend par exemple un convoyeur circulaire sous la forme d'un barillet dont le mouvement rotatif est indexé de manière à présenter à chaque pas un de ses porte- composant 80 au-dessus du tapis roulant 1. Le mouvement du tapis roulant 1 est de préférence également indexé et synchronisé au mouvement de la ligne de traitement principale 8, présentant ainsi un nouveau porte- composant 2 sous le porte-composant 80 du barillet à chaque pas du convoyeur de la ligne de traitement principale 8. Chaque composant électronique 9 transporté par la ligne de traitement principale 8 peut ainsi être déposé sur un porte-composant 2 vide du tapis roulant 1.In its preferred version, the conveyor system according to the invention illustrated in FIG. 2 comprises a conveyor in the form of a conveyor belt 1 on which component holders 2 are regularly arranged. Preferably, each component holder 2 is intended to receive a single electronic component 9. The electronic components 9 are deposited on the conveyor belt 1 for example from a line of main treatment on which they have for example been tested electrically. The main processing line 8 comprises for example a circular conveyor in the form of a barrel whose rotary movement is indexed so as to present at each step one of its component carriers 80 above the conveyor belt 1. The movement of the conveyor belt 1 is preferably also indexed and synchronized with the movement of the main processing line 8, thus presenting a new component holder 2 under the component holder 80 of the barrel at each step of the conveyor of the main processing line 8. Each electronic component 9 transported by the main processing line 8 can thus be deposited on an empty component carrier 2 of the treadmill 1.
Des postes de sortie, par exemple des récipients 4 pouvant accueillir plusieurs composants, sont disposés le long du tapis roulant 1. Dans sa version préférentielle, le système de convoyage selon l'invention peut ainsi servir par exemple au tri des composants électroniques 9 qu'il transporte en les évacuant chacun dans un des récipients 4 en fonction de certaines caractéristiques, par exemple en fonction des résultats de tests antérieurs. A chaque récipient 4 correspond une sortie d'air comprimé 30 permettant l'évacuation d'un composant électronique 9 d'un porte- composant 2 vers le récipient 4 correspondant, ainsi qu'indiqué par les flèches b de la figure 1. Les sorties d'air 30 sont disposées de façon à pouvoir évacuer les composants électroniques 9 durant les temps d'arrêt du tapis roulant 1. Les sorties d'air 30 sont de préférence constituées de tubes dont la partie inférieure est maintenue selon un angle sensiblement égal à 45 degrés par rapport à la verticale dans un cadre 3 recouvrant la portion du tapis roulant 1 se trouvant entre les postes de sortie 4.Exit stations, for example containers 4 which can accommodate several components, are arranged along the conveyor belt 1. In its preferred version, the conveyor system according to the invention can thus be used for example for sorting electronic components 9 that it transports by evacuating them each in one of the containers 4 according to certain characteristics, for example according to the results of previous tests. Each container 4 corresponds to a compressed air outlet 30 allowing the evacuation of an electronic component 9 from a component holder 2 to the corresponding container 4, as indicated by the arrows b in FIG. 1. The outlets air 30 are arranged so as to be able to evacuate the electronic components 9 during the downtime of the treadmill 1. The air outlets 30 are preferably made up of tubes, the lower part of which is maintained at an angle substantially equal to 45 degrees to the vertical in a frame 3 covering the portion of the treadmill 1 located between the exit stations 4.
Le tapis roulant 1 est entraîné dans la direction de la flèche a par un moteur indexé représenté schématiquement par les roues 11 (figure 2).The conveyor belt 1 is driven in the direction of arrow a by an indexed motor represented diagrammatically by the wheels 11 (FIG. 2).
En référence aux figures 3 et 4, le porte-composant 2 est attaché, par exemple collé, vissé ou riveté, à la courroie 10 du tapis roulant 1. La courroie 10 glisse dans un rail 12 lui servant à la fois de guide et de support assurant ainsi le positionnement correct du porte-composant 2 par rapport au récipient 4 et à la sortie d'air comprimé 30 et assurant également sa stabilité lors de l'évacuation du composant électronique 9.With reference to FIGS. 3 and 4, the component holder 2 is attached, for example glued, screwed or riveted, to the belt 10 of the treadmill 1. The belt 10 slides in a rail 12 serving both as a guide and as a guide. support thus ensuring the correct positioning of the component holder 2 relative to to the container 4 and to the compressed air outlet 30 and also ensuring its stability during the evacuation of the electronic component 9.
Le dispositif d'évacuation des composants électroniques 9 comprend essentiellement la sortie d'air comprimé 30 associée à la surface de repos 20 du porte-composant 2 ainsi que des guides matérialisés par les parois latérales 21 du porte-composant 2. La sortie d'air comprimé est constituée de préférence d'un tube 30 dont la partie inférieure est maintenue selon un angle sensiblement égal à 45 degrés par rapport à la verticale dans le cadre 3 et relié par son extrémité supérieure à un système pneumatique non représenté. L'extrémité inférieure du tube 30 est maintenue à faible distance du porte-composant 2, près de l'extrémité de la surface de repos 20 opposée à l'ouverture 40 du récipient 4. Si le composant électronique 9 se trouvant sur le porte-composant 2 doit être évacué dans le récipient 4, un jet d'air comprimé est insufflé dans le tube 30. Le souffle d'air est guidé entre les parois latérales 21 du porte composant 2 le long de la surface de repos 20 en direction du composant électronique 9 qu'il entraîne avec lui vers l'ouverture 40 du récipient 4. Le cadre 3 comporte un dégagement 31 face à l'ouverture 40 du récipient 4 permettant l'accès du composant électronique 9 au récipient 4. La surface de repos 20 sur laquelle est déposé le composant électronique 9 est de préférence elliptique et concave, imprimant ainsi au composant électronique 9 une trajectoire elliptique lors de son évacuation, évitant qu'il soit projeté horizontalement à travers l'ouverture 40 contre la paroi opposée du récipient 4.The device for removing the electronic components 9 essentially comprises the compressed air outlet 30 associated with the rest surface 20 of the component holder 2 as well as guides materialized by the side walls 21 of the component holder 2. The outlet compressed air preferably consists of a tube 30 whose lower part is maintained at an angle substantially equal to 45 degrees relative to the vertical in the frame 3 and connected by its upper end to a pneumatic system not shown. The lower end of the tube 30 is kept a short distance from the component holder 2, near the end of the rest surface 20 opposite the opening 40 of the container 4. If the electronic component 9 located on the holder component 2 must be discharged into the container 4, a jet of compressed air is blown into the tube 30. The breath of air is guided between the side walls 21 of the component holder 2 along the rest surface 20 in the direction of the electronic component 9 which it carries with it towards the opening 40 of the container 4. The frame 3 has a clearance 31 facing the opening 40 of the container 4 allowing access of the electronic component 9 to the container 4. The rest surface 20 on which the electronic component 9 is deposited is preferably elliptical and concave, thus imparting to the electronic component 9 an elliptical trajectory during its evacuation, preventing it from being projected horizontally through the opening 40 against the opposite wall of the container 4.
Grâce à la forme symétrique de la surface de repos 20 par rapport au sens de défilement de la courroie 10, le composant électronique 9 peut être évacué indifféremment d'un côté ou de l'autre de la surface de repos 20 suivant la position de la sortie d'air comprimé 30, permettant ainsi la disposition de récipients 4 des deux côtés du tapis roulant 1. Hormis dans sa partie comportant le dégagement 31, le cadre 3 recouvre le porte- composant 2 de manière à empêcher les composants électroniques 9 de sortir involontairement, par exemple durant les déplacements du tapis roulant 1. Grâce à la forme concave de la surface de repos 20, le composant électronique 9 a tendance à glisser vers le centre du porte-composant 2 sous l'effet de la seule force de gravité, quelle que soit la précision avec laquelle il y a été déposé, assurant ainsi son positionnement correct avant son évacuation par le souffle d'air comprimé.Thanks to the symmetrical shape of the rest surface 20 with respect to the direction of travel of the belt 10, the electronic component 9 can be removed either from one side or the other of the rest surface 20 depending on the position of the compressed air outlet 30, thus allowing the arrangement of receptacles 4 on both sides of the conveyor belt 1. Except for its part comprising the clearance 31, the frame 3 covers the component holder 2 so as to prevent the electronic components 9 from coming out involuntarily, for example during movement of the treadmill 1. Thanks to the concave shape of the rest surface 20, the electronic component 9 tends to slide towards the center of the component holder 2 under the effect of gravity alone, regardless of the precision with which it has been removed, thus ensuring its correct positioning before being evacuated by the blast of compressed air.
Après avoir été déposés par la ligne de traitement principale 8 sur les porte-composants 2, les composants électroniques 9 sont transportés par le tapis roulant 1 vers une série de récipients 4 dans lesquels ils sont évacués en fonction de caractéristiques déterminées auparavant, par exemple en fonction de résultats de tests électriques effectués sur la ligne de traitement principale 8. A chaque récipient 4 correspond une sortie d'air comprimé 30, formant ainsi à chaque fois un dispositif d'évacuation tel que décrit plus haut. Lorsqu'un composant électronique 9 se trouve face à la sortie d'air comprimé 30 correspondant au récipient 4 dans lequel il doit être évacué, un jet d'air comprimé est rapidement expulsé par la sortie d'air comprimé 30 en question. L'air balaie la surface de repos 20 du porte- composant 2 depuis la sortie d'air comprimé 30 vers le récipient 4, entraînant avec lui le composant électronique 9 qui est ainsi évacué dans le récipient 4. Les parois latérales 21 du porte-composant 2 servent de guide au jet d'air comprimé et évitent que le composant électronique 9 ne sorte de sa trajectoire. Le dégagement 31 dans le cadre 3 permet également d'assurer la trajectoire du composant électronique 9 et de permettre son accès à l'ouverture 40 du récipient 4.After being deposited by the main processing line 8 on the component carriers 2, the electronic components 9 are transported by the conveyor belt 1 to a series of containers 4 in which they are evacuated according to characteristics determined previously, for example in function of the results of electrical tests carried out on the main treatment line 8. Each container 4 corresponds to a compressed air outlet 30, thus forming each time a discharge device as described above. When an electronic component 9 is located opposite the compressed air outlet 30 corresponding to the container 4 into which it is to be evacuated, a jet of compressed air is rapidly expelled by the compressed air outlet 30 in question. The air scans the rest surface 20 of the component holder 2 from the compressed air outlet 30 towards the container 4, carrying with it the electronic component 9 which is thus evacuated in the container 4. The side walls 21 of the holder component 2 serve as a guide for the compressed air jet and prevent the electronic component 9 from going out of its path. The clearance 31 in the frame 3 also makes it possible to ensure the trajectory of the electronic component 9 and to allow its access to the opening 40 of the container 4.
L'évacuation des composants électroniques 9 de leur porte- composant 2 n'implique ainsi le mouvement d'aucun élément mécanique. L'évacuation du composant électronique 9 est rapide et sa précision est garantie par la forme de la surface de repos 20, associée à la direction de la sortie d'air comprimé 30.The evacuation of the electronic components 9 from their component holder 2 thus does not involve the movement of any mechanical element. The electronic component 9 is quickly removed and its accuracy is guaranteed by the shape of the rest surface 20, associated with the direction of the compressed air outlet 30.
La position des sorties d'air 30 au-dessus d'une des extrémités des porte-composants 2 permet l'évacuation des composants électroniques 9 d'un côté ou de l'autre du tapis roulant 1. L'orientation de la partie inférieure des tubes 30, qui est de préférence inclinée vers les surfaces de repos 20 selon un angle sensiblement égal à 45 degrés par rapport à la verticale, associée à la forme elliptique des surfaces de repos 20 permettent une évacuation rapide et efficace des composants électroniques 9 sans que les jets d'air comprimé ne soient toutefois dirigés directement contre eux, évitant ainsi une évacuation trop directe ou trop brusque qui pourrait les endommager. En effet, le jet d'air de chaque dispositif d'évacuation est de préférence dirigé contre une partie de la surface de repos 20 libre de tout composant électronique, de préférence juste devant le composant électronique 9 à évacuer. L'inclinaison de la surface de repos 20 guide le jet d'air vers le composant électronique 9. Le jet d'air arrivant contre cette partie de la surface de repos 20 avec un certain angle d'incidence, l'onde de choc que représente le jet d'air immédiatement après sa sortie du tube 30 est sensiblement atténuée. Le souffle d'air glisse ainsi sur la surface de repos 20 soulevant le composant électronique 9 tout en le poussant latéralement vers l'ouverture 40 du récipient 4, évitant ainsi également qu'il ne reste coincé sur le porte-composant 2, par exemple à cause d'une aspérité de la surface de repos 20. L'homme du métier reconnaîtra cependant que d'autres orientations des sorties d'air 30 sont envisageables. La partie inférieure des tubes 30 peut en particulier être positionnée verticalement au-dessus d'une des extrémités de la surface de repos 20. Les sorties d'air peuvent également être situées sous les composants électroniques à évacuer, moyennant cependant une adaptation des porte- composants 2.The position of the air outlets 30 above one of the ends of the component carriers 2 allows the evacuation of the electronic components 9 from one side or the other of the treadmill 1. The orientation of the lower part tubes 30, which is preferably inclined towards the surfaces of rest 20 at an angle substantially equal to 45 degrees relative to the vertical, associated with the elliptical shape of the rest surfaces 20 allow rapid and efficient evacuation of the electronic components 9 without the jets of compressed air being directed directly against them, thus avoiding too direct or too abrupt evacuation which could damage them. Indeed, the air jet of each evacuation device is preferably directed against a part of the rest surface 20 free of any electronic component, preferably just in front of the electronic component 9 to be evacuated. The inclination of the rest surface 20 guides the air jet towards the electronic component 9. The air jet arriving against this part of the rest surface 20 with a certain angle of incidence, the shock wave that represents the air jet immediately after its exit from the tube 30 is substantially attenuated. The air blast thus slides on the rest surface 20 lifting the electronic component 9 while pushing it laterally towards the opening 40 of the container 4, thus also preventing it from being trapped on the component holder 2, for example because of the roughness of the rest surface 20. Those skilled in the art will however recognize that other orientations of the air outlets 30 are conceivable. The lower part of the tubes 30 can in particular be positioned vertically above one of the ends of the resting surface 20. The air outlets can also be located under the electronic components to be evacuated, provided however an adaptation of the holders components 2.
Le mouvement indexé et synchronisé de la ligne de traitement principale 8 et du tapis roulant 1 permet à un contrôleur non représenté de connaître à tout moment la position exacte de chaque composant électronique 9, permettant ainsi le tri de ces composants électroniques 9 dans les différents récipients 4 en fonction de certains paramètres. Le contrôleur est par exemple renseigné par les postes de test de la ligne de traitement principale 8 des résultats des tests effectués sur chaque composant électronique 9. Le contrôleur détermine ainsi, en fonction de ces résultats et selon des critères préétablis, vers quel récipient 4 chaque composant électronique 9 doit être évacué. Connaissant en tout temps la position de chaque composant électronique 9, le contrôleur transmet à chaque pas du tapis roulant 1 l'ordre au système pneumatique d'expulser un jet d'air par chaque sortie d'air comprimé 30 près de laquelle se trouve un composant électronique 9 devant être évacué vers le récipient 4 correspondant. Dans une variante de l'invention, le mouvement du convoyeur 1 est continu, simplifiant son entraînement mais nécessitant une plus grande précision du contrôleur.The indexed and synchronized movement of the main processing line 8 and the conveyor belt 1 allows a controller, not shown, to know at all times the exact position of each electronic component 9, thus allowing the sorting of these electronic components 9 in the different containers. 4 depending on certain parameters. The controller is for example informed by the test stations of the main processing line 8 of the results of the tests carried out on each electronic component 9. The controller thus determines, as a function of these results and according to predetermined criteria, to which container 4 each electronic component 9 must be removed. Knowing at all times the position of each electronic component 9, the controller transmits to each step of the treadmill 1 orders the pneumatic system to expel an air jet through each compressed air outlet 30 near which there is an electronic component 9 to be evacuated to the corresponding container 4. In a variant of the invention, the movement of the conveyor 1 is continuous, simplifying its drive but requiring greater precision from the controller.
Dans la version préférentielle de l'invention, la trajectoire des composants électroniques 9 lors de leur évacuation est en partie déterminée par les parois latérales 21 du porte-composant 2 agissant ainsi à la manière de guides. L'homme du métier reconnaîtra cependant que cette fonction de guidage peut être remplie par d'autres formes de guides, telles que par exemple des rails ou des glissières formées directement sur la surface de repos 20, des portions du cadre 3, un tuyau dans lequel le composant électronique 9 est déposé et à une extrémité duquel un jet d'air comprimé est insufflé pour évacuer le composant électronique 9 par l'autre extrémité, etc.In the preferred version of the invention, the trajectory of the electronic components 9 during their evacuation is partly determined by the side walls 21 of the component holder 2 thus acting in the manner of guides. Those skilled in the art will however recognize that this guiding function can be fulfilled by other forms of guides, such as for example rails or slides formed directly on the rest surface 20, portions of the frame 3, a pipe in which the electronic component 9 is deposited and at one end of which a jet of compressed air is blown to evacuate the electronic component 9 through the other end, etc.
La version préférentielle du convoyeur selon l'invention décrite ci-dessus est donnée à titre d'exemple illustratif. L'homme du métier comprendra aisément que le principe du dispositif d'évacuation peut être réalisé sous des formes diverses. En particulier, il est possible d'orienter les sorties d'air dans d'autres directions que celle présentée ci-dessus, par exemple de les orienter verticalement. Il est également possible d'orienter les sorties d'air directement sur le côté ou sous le composant électronique 9 à évacuer. La forme de la surface de repos des porte-composants peut également être modifiée, en particulier elle peut être adaptée à l'orientation des sorties d'air.The preferred version of the conveyor according to the invention described above is given by way of illustrative example. Those skilled in the art will readily understand that the principle of the evacuation device can be produced in various forms. In particular, it is possible to orient the air outlets in other directions than that presented above, for example to orient them vertically. It is also possible to orient the air outlets directly to the side or under the electronic component 9 to be evacuated. The shape of the rest surface of the component carriers can also be modified, in particular it can be adapted to the orientation of the air outlets.
L'homme du métier reconnaîtra que, de manière équivalente, les sorties d'air 30 peuvent être remplacées par des prises d'air reliées à un système pneumatique permettant l'aspiration des composants électroniques 9 vers les récipients 4 correspondants, cette exécution présentant toutefois le désavantage principal de rendre malaisé le contrôle de la trajectoire et de la force d'évacuation des composant électroniques, risquant ainsi d'endommager les composants.Those skilled in the art will recognize that, in an equivalent manner, the air outlets 30 can be replaced by air intakes connected to a pneumatic system allowing the suction of the electronic components 9 to the corresponding receptacles 4, this execution having however the main disadvantage of making control awkward trajectory and evacuation force of the electronic components, risking damage to the components.
L'homme du métier reconnaîtra également que le convoyeur du système de convoyage selon l'invention peut également être différent d'un tapis roulant. Il peut par exemple s'agir d'un convoyeur circulaire comprenant un barillet, etc.Those skilled in the art will also recognize that the conveyor of the conveyor system according to the invention may also be different from a conveyor belt. It can for example be a circular conveyor comprising a barrel, etc.
Dans une autre variante de l'invention, les surfaces de repos sur lesquelles sont déposés les composants électroniques sont intégrées au convoyeur. Elles sont par exemple directement formées sur la surface supérieure de la courroie du tapis roulant ou sur la périphérie du convoyeur circulaire. Dans une autre variante de l'invention, le convoyeur est un tapis roulant dont la courroie est formée d'une succession de porte-composants reliés de façon flexible entre eux. In another variant of the invention, the rest surfaces on which the electronic components are deposited are integrated into the conveyor. They are for example directly formed on the upper surface of the conveyor belt or on the periphery of the circular conveyor. In another variant of the invention, the conveyor is a conveyor belt, the belt of which is formed by a succession of component carriers flexibly connected together.

Claims

Revendications claims
1. Système de convoyage de composants électroniques comprenant un convoyeur (1), ledit convoyeur (1) comprenant au moins un porte-composant (2) pour le transport d'au moins un composant électronique (9), caractérisé en ce qu'il comprend au moins une sortie d'air comprimé (30) pour l'évacuation dudit au moins un composant électronique (9) dudit au moins un porte-composant (2).1. Conveying system for electronic components comprising a conveyor (1), said conveyor (1) comprising at least one component holder (2) for transporting at least one electronic component (9), characterized in that it comprises at least one compressed air outlet (30) for the evacuation of said at least one electronic component (9) from said at least one component holder (2).
2. Système de convoyage selon la revendication précédente, comprenant une pluralité de sortie d'air comprimé (30) pour l'évacuation dudit au moins un composant électronique (9) dans différents récipients (4) sous la commande d'un contrôleur.2. Conveying system according to the preceding claim, comprising a plurality of compressed air outlet (30) for the evacuation of said at least one electronic component (9) in different containers (4) under the control of a controller.
3. Système de convoyage selon la revendication précédente, pour le tri d'une pluralité de composants électroniques (9) en fonction de r caarraarcttpérriiςstttiπqiuipeςs n prrpéridpétteerrmmiinnpéeeςs..3. Conveying system according to the preceding claim, for sorting a plurality of electronic components (9) according to r caarraarcttpérriiςstttiπqiuipeςs n prrpéridpétteerrmmiinnpéeeςs ..
4. Système de convoyage selon l'une des revendications précédentes, ledit au moins un porte-composant (2) comportant une portion vers laquelle ledit au moins un composant électronique (9) tend à glisser de lui-même sous l'effet de la force de gravitation, ladite au moins une sortie d'air comprimé (30) étant disposée de manière à pouvoir déloger ledit au moins un composant électronique (9) de ladite portion de manière à évacuer ledit au moins un composant électronique (9) dudit au moins un porte-composant (2).4. Conveying system according to one of the preceding claims, said at least one component holder (2) comprising a portion towards which said at least one electronic component (9) tends to slide by itself under the effect of gravitational force, said at least one compressed air outlet (30) being arranged so as to be able to dislodge said at least one electronic component (9) from said portion so as to evacuate said at least one electronic component (9) from said at minus a component holder (2).
5. Système de convoyage selon l'une des revendications précédentes, ledit convoyeur étant un tapis roulant (1).5. Conveying system according to one of the preceding claims, said conveyor being a conveyor belt (1).
6. Système de convoyage selon l'une des revendications précédentes, ladite au moins une sortie d'air comprimé étant dirigée vers une partie dudit au moins un porte-composant (2) libre de tout composant électronique. 6. Conveying system according to one of the preceding claims, said at least one compressed air outlet being directed towards a part of said at least one component holder (2) free of any electronic component.
7. Système de convoyage selon l'une des revendications précédentes, ladite sortie d'air comprimé (30) étant orientée selon un angle sensiblement égal à 45 degrés par rapport à la verticale au-dessus de la face supérieure dudit au moins un porte-composant (2).7. Conveying system according to one of the preceding claims, said compressed air outlet (30) being oriented at an angle substantially equal to 45 degrees relative to the vertical above the upper face of said at least one carrier. component (2).
8. Système de convoyage selon la revendication précédente, ladite sortie d'air comprimé étant positionnée au-dessus d'une des extrémités dudit au moins un porte-composant (2).8. Conveying system according to the preceding claim, said compressed air outlet being positioned above one of the ends of said at least one component holder (2).
9. Système de convoyage selon l'une des revendications précédentes, ledit porte-composant (2) comportant une surface de repos (20) au moins partiellement elliptique.9. Conveying system according to one of the preceding claims, said component holder (2) comprising a rest surface (20) at least partially elliptical.
10. Système de convoyage selon la revendication précédente, ledit porte-composant (2) comportant au moins un guide (21) déterminant la trajectoire dudit au moins un composant électronique (9) lors de son évacuation.10. Conveying system according to the preceding claim, said component holder (2) comprising at least one guide (21) determining the path of said at least one electronic component (9) during its evacuation.
11. Système de convoyage selon la revendication précédente, ledit au moins un guide étant constitué par les parois latérales (21) dudit au moins un porte-composant (2).11. Conveying system according to the preceding claim, said at least one guide being constituted by the side walls (21) of said at least one component holder (2).
12. Porte-composant (2) pour système de convoyage de composants électroniques comportant une surface de repos (20) pour le transport d'au moins un composant électronique (9), ladite surface de repos (20) comportant une portion vers laquelle ledit au moins un composant électronique (9) tend à glisser de lui-même sous l'effet de la force de gravitation, caractérisé en ce que la forme de ladite surface de repos est choisie en sorte que ledit au moins un composant électronique (9) peut être évacué selon une trajectoire déterminée dudit porte-composant (2) par la force d'un jet d'air comprimé provenant d'une sortie d'air comprimé disposée au dessus de ladite surface de repos (20).12. Component holder (2) for a system for conveying electronic components comprising a rest surface (20) for transporting at least one electronic component (9), said rest surface (20) comprising a portion towards which said at least one electronic component (9) tends to slide by itself under the effect of the gravitational force, characterized in that the shape of said rest surface is chosen so that said at least one electronic component (9) can be evacuated along a determined path from said component holder (2) by the force of a compressed air jet coming from a compressed air outlet disposed above said rest surface (20).
13. Porte-composant (2) selon la revendication précédente, ladite surface de repos (20) étant au moins partiellement elliptique. 13. Component holder (2) according to the preceding claim, said rest surface (20) being at least partially elliptical.
14. Porte-composant (2) selon l'une des revendications 12 ou 13, comportant au moins un guide (21) pour guider la trajectoire dudit au moins un composant électronique (9) lors de l'évacuation dudit au moins un composant électronique (9) dudit porte-composant (2).14. Component holder (2) according to one of claims 12 or 13, comprising at least one guide (21) for guiding the path of said at least one electronic component (9) during the evacuation of said at least one electronic component. (9) of said component holder (2).
15. Porte-composant selon la revendication précédente, ledit au moins un guide (21) étant constitué par les parois latérales dudit porte- composant (2).15. Component holder according to the preceding claim, said at least one guide (21) being constituted by the side walls of said component holder (2).
16. Système pour le traitement de composant électroniques, comprenant une ligne de traitement principale (8), un système de convoyage selon l'une des revendications 2 à 11 et un contrôleur, caractérisé en ce que l'évacuation dudit au moins un composant électronique (9) vers lesdits différents récipients (4) est commandé par le contrôleur en fonction de caractéristiques déterminées sur ladite ligne de traitement principale (8).16. System for processing electronic components, comprising a main processing line (8), a conveying system according to one of claims 2 to 11 and a controller, characterized in that the evacuation of said at least one electronic component (9) to said different containers (4) is controlled by the controller as a function of characteristics determined on said main processing line (8).
17. Système selon la revendication précédente, lesdites caractéristiques étant les résultats de tests.17. System according to the preceding claim, said characteristics being the results of tests.
18. Système selon la revendication précédente, lesdites caractéristiques étant les résultats de tests électriques. 18. System according to the preceding claim, said characteristics being the results of electrical tests.
PCT/CH2003/000322 2002-06-14 2003-05-19 System for conveying electronic components WO2003107730A1 (en)

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DE102006020513B4 (en) * 2006-05-03 2014-07-03 Martin Prasch High-performance standard device for flexible transport and handling of semiconductor components of different sizes

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DE3910567A1 (en) * 1989-04-01 1990-10-04 Sczimarowski Klaus Device for ejecting and selecting individual pieces from a moving line
US20010013486A1 (en) * 1997-11-12 2001-08-16 Masakazu Yamakawa Electronic parts conveying apparatus and method
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Publication number Priority date Publication date Assignee Title
DE3910567A1 (en) * 1989-04-01 1990-10-04 Sczimarowski Klaus Device for ejecting and selecting individual pieces from a moving line
US20010013486A1 (en) * 1997-11-12 2001-08-16 Masakazu Yamakawa Electronic parts conveying apparatus and method
US6382394B1 (en) * 1998-11-26 2002-05-07 Ntn Corporation Parts front and back face aligning apparatus for vibratory parts feeding machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006020513B4 (en) * 2006-05-03 2014-07-03 Martin Prasch High-performance standard device for flexible transport and handling of semiconductor components of different sizes

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