EP1355770A1 - Device for detecting positioning of a staple for a frame assembling machine, and method for using said device - Google Patents

Device for detecting positioning of a staple for a frame assembling machine, and method for using said device

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Publication number
EP1355770A1
EP1355770A1 EP01273127A EP01273127A EP1355770A1 EP 1355770 A1 EP1355770 A1 EP 1355770A1 EP 01273127 A EP01273127 A EP 01273127A EP 01273127 A EP01273127 A EP 01273127A EP 1355770 A1 EP1355770 A1 EP 1355770A1
Authority
EP
European Patent Office
Prior art keywords
staple
spring
rod
jack
head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01273127A
Other languages
German (de)
French (fr)
Other versions
EP1355770B1 (en
Inventor
Pierre Cassese
Alain Cassese
Jean Cassese
Philippe Cassese
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cassese SA
Original Assignee
Cassese 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 Cassese SA filed Critical Cassese SA
Publication of EP1355770A1 publication Critical patent/EP1355770A1/en
Application granted granted Critical
Publication of EP1355770B1 publication Critical patent/EP1355770B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27F—DOVETAILED WORK; TENONS; SLOTTING MACHINES FOR WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES
    • B27F7/00—Nailing or stapling; Nailed or stapled work
    • B27F7/17—Stapling machines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49764—Method of mechanical manufacture with testing or indicating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49764—Method of mechanical manufacture with testing or indicating
    • Y10T29/49778—Method of mechanical manufacture with testing or indicating with aligning, guiding, or instruction
    • Y10T29/4978—Assisting assembly or disassembly
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53026—Means to assemble or disassemble with randomly actuated stopping or disabling means
    • Y10T29/5303—Responsive to condition of work or product
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53039—Means to assemble or disassemble with control means energized in response to activator stimulated by condition sensor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53039—Means to assemble or disassemble with control means energized in response to activator stimulated by condition sensor
    • Y10T29/53048—Multiple station assembly or disassembly apparatus
    • Y10T29/53052—Multiple station assembly or disassembly apparatus including position sensor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53039—Means to assemble or disassemble with control means energized in response to activator stimulated by condition sensor
    • Y10T29/53061—Responsive to work or work-related machine element
    • Y10T29/53065—Responsive to work or work-related machine element with means to fasten by deformation

Definitions

  • Device for detecting the docking of a staple for a frame assembly machine, and method for implementing the device.
  • the frame assemblers comprise, as we know, a work plate on which the part to be treated is positioned, and a movable mechanism essentially arranged under said plate and intended to make a hammer act from the bottom. This crosses a stapling bar receiving the frame or the molding and the movement of the hammer is controlled by a reverse movement of a presser protruding above the plate, whose role is to maintain the frame and act as hammer counter-stop.
  • the . staples from a staple bar or a magazine are brought to the level of the table in a dispensing head placed directly above the hammer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Dovetailed Work, And Nailing Machines And Stapling Machines For Wood (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

A spring ( 18 ) is interposed between the sliding carriage ( 6 ) carrying a hammer ( 13 ) for driving-in and the actuator rod. The spring is mounted on the head ( 15 ) of a push rod, which carries a push contact ( 16 ) surrounded by an insulating washer ( 17 ). A O pad ( 20 ) is housed in the central opening of another insulating washer ( 19 ) supported by the spring. These detection means are activated when the spring is compressed in response to the stapling effort required at the moment when a staple comes up against the frame mouldings to be assembled. Application in frame-assembling machines.

Description

Dispositif de détection de l'accostage d'une agrafe pour une machine d'assemblage de cadres, et procédé pour la mise en oeuvre du dispositif. Device for detecting the docking of a staple for a frame assembly machine, and method for implementing the device.
L'invention se situe dans le domaine technique des irachines d'assemblage de cadres et concerne plus précisément un dispositif de détection de l'accostage d'une agrafe sur les moulures à agrafer, et son procédé de mise en oeuvre.The invention lies in the technical field of frame assembly irachines and more specifically relates to a device for detecting the docking of a staple on the staple moldings, and its implementation method.
Les assembleuses de cadres comportent comme on sait un plateau de travail sur lequel est positionné la pièce à traiter, et un mécanisme mobile essentiellement disposé sous ledit plateau et destiné à faire agir de bas en haut un marteau. Celui-ci traverse un barreau d'agrafage recevant le cadre ou la moulure et le mouvement du marteau est asservi à un mouvement inverse d'un presseur débordant au-dessus du plateau, dont le rôle est de maintenir le cadre et de faire office de contre-butée au marteau. Les . agrafes provenant d'une barrette d'agrafes ou d'un chargeur sont amenées au niveau de la table dans une tête de distribution placée a l'aplomb du marteau.The frame assemblers comprise, as we know, a work plate on which the part to be treated is positioned, and a movable mechanism essentially arranged under said plate and intended to make a hammer act from the bottom. This crosses a stapling bar receiving the frame or the molding and the movement of the hammer is controlled by a reverse movement of a presser protruding above the plate, whose role is to maintain the frame and act as hammer counter-stop. The . staples from a staple bar or a magazine are brought to the level of the table in a dispensing head placed directly above the hammer.
Dans ces machines connues, il n'existe pas de système fiable et efficace qui permette de s'assurer de l'insertion correcte d'une agrafe à l'endroit considéré. Pour cela il faudrait être sûr du nombre d'agrafes disposées dans un chargeur, pour pouvoir les décompter avec précision et s'assurer ainsi qu'elles ont' bien été posées. Or ce nombre n'est connu qu'à quelques unités près. On pourrait aussi mesurer la longueur des barrettes d'agrafes pour être renseigné sur leur nombre, mais cela implique un dispositif de mesure précis et délicat à mettre en oeuvre.In these known machines, there is no reliable and effective system which makes it possible to ensure the correct insertion of a staple at the location considered. To do so would be sure of the number of staples arranged in a charger in order to count them accurately and thus make sure they have 'been asked. However, this number is known only to a few units. One could also measure the length of the staple bars to be informed of their number, but this implies a precise and delicate measuring device to be implemented.
Ces difficultés ont conduit la Demanderesse à imaginer et mettre au point un dispositif permettant de détecter automatiquement l'accostage d'une agrafe contre les moulures à agrafer, dispositif basé non plus sur un contrôle de la présence de 1 ' agrafe ' posée ou de l'absence d'une agrafe à l'emplacement de la pose, mais sur une détection de l'effort demandé par l'organe moteur de la machine pour enfoncer 1 ' agrafe dans les moulures . L'invention a donc pour objet principal un dispositif de détection de l'accostage d'une agrafe pour une machine d'assemblage de cadres, comprenant un barreau d'agrafage recevant une tête de distribution d'agrafes, ainsi qu'un chariot, coulissant verticalement sous ledit barreau le long de colonnes de guidage, et portant un marteau pour l'enfoncement de l'agrafe, ledit chariot étant déplacé par la tige d'un vérin, dispositif selon lequel un ressort est intercalé entre le chariot coulissant et la tige du vérin, et selon lequel ledit ressort est associé à des moyens de détection et active ces moyens en réaction à l'effort d'agrafage demandé quand une agrafe aborde les moulures du cadre à assembler.These difficulties have led the Applicant to imagine and develop a device making it possible to automatically detect the approach of a staple against stapling moldings, a device no longer based on a control of the presence of the stapled or of the 'absence of a clip at the location of the installation, but on a detection of the force required by the motor member of the machine to drive the clip into the moldings. The main object of the invention is therefore a device for detecting the docking of a staple for a frame assembly machine, comprising a stapling bar. receiving a staple dispensing head, as well as a carriage, sliding vertically under said bar along guide columns, and carrying a hammer for driving the staple, said carriage being moved by the rod of a cylinder, device according to which a spring is interposed between the sliding carriage and the rod of the cylinder, and according to which said spring is associated with detection means and activates these means in reaction to the stapling force required when a staple approaches the frame moldings to assemble.
Avantageusement, le ressort est un ressort à spires non jointives qui est monté sur la tête d'une tige de pousseur reliée à sa partie inférieure à la tige du vérin. Les moyens de détection sont constitués d'une part d'un contact pousseur placé sur cette tête et entouré d'une rondelle isolante et d'autre part d'une pastille logée dans l'ouverture centrale d'une autre rondelle isolante supportée par le ressort.Advantageously, the spring is a spring with non-contiguous turns which is mounted on the head of a pusher rod connected at its lower part to the rod of the jack. The detection means consist on the one hand of a pusher contact placed on this head and surrounded by an insulating washer and on the other hand of a pellet housed in the central opening of another insulating washer supported by the spring.
L'invention à également pour objet un procédé pour la mise en oeuvre du dispositif selon lequel, dans un premier temps le vérin est actionné à vitesse réduite jusqu'à ce que l'agrafe ait abordé les moulures du cadre, à vitesse lente de manière à ne pas émousser le fil d'affûtage de l'agrafe et selon lequel, dans un second temps la machine accélère la montée du vérin pour l'insertion complète de l'agrafe.The invention also relates to a method for implementing the device according to which, firstly the actuator is actuated at reduced speed until the clip has approached the moldings of the frame, at slow speed so not to dull the sharpening wire of the clip and according to which, in a second time the machine accelerates the rise of the jack for the complete insertion of the clip.
D'autres caractéristiques particulières et avantages de l'invention apparaîtront à la lecture de la description suivante d'un exemple. de réalisation dans lequel il est fait référence aux dessins annexés qui représentent : Figure 1, une vue générale en perspective de la machine d'assemblage.Other particular characteristics and advantages of the invention will appear on reading the following description of an example. of embodiment in which reference is made to the appended drawings which represent: FIG. 1, a general perspective view of the assembly machine.
Figure 2, une vue éclatée en perspective du dispositif de détection d'accostage.Figure 2, an exploded perspective view of the docking detection device.
Figures 3 et 4, des vues en perspective du chariot coulissant et de la tige de pousseur respectivement en position basse et en position haute.Figures 3 and 4, perspective views of the sliding carriage and the pusher rod respectively in the low position and in the high position.
La figure 1 montre une machine d'assemblage comportant un plateau 1 sur lequel reposent les moulures en appui sur des butées réglables 2. Sous le plateau est fixé. un barreau d'agrafage 3 recevant une tête 4 de distribution d'agrafes affleurant la surface du plateau. Toujours sous le plateau sont fixées également des colonnes de guidage 5 d'un chariot 6 coulissant verticalement dont la course est limitée par une butée basse 7. Une tige de pousseur 8 qui se déplace dans u 'orifice central de la butée basse est reliée à sa partie inférieure à la tige 9 d'un vérin suspendu 10 dont le déplacement vertical de bas en haut ou de haut en bas se transmet à un presseur 11 localisé au-dessus du plateau, par l'intermédiaire d'une potence 12.Figure 1 shows an assembly machine comprising a plate 1 on which the moldings rest, bearing on adjustable stops 2. Under the plate is fixed. a stapling bar 3 receiving a staple dispensing head 4 flush with the surface of the plate. Still under the plate are also fixed guide columns 5 of a vertically sliding carriage 6 whose stroke is limited by a low stop 7. A push rod 8 which moves in the central orifice of the low stop is connected to its lower part to the rod 9 of a suspended jack 10 whose vertical movement from bottom to top or from top to bottom is transmitted to a presser 11 located above the plate, by means of a bracket 12.
On voit plus précisément à la figure 2 qu'un marteau 13 est apte .à traverser la tête de distribution 4 placée dans le barreau d'agrafage 3. Le marteau destiné à l'enfoncement de l'agrafe est fixé lui-même sur un support de marteau 14 rapporté sur le chariot coulissant 6.It can be seen more precisely in FIG. 2 that a hammer 13 is able to pass through the dispensing head 4 placed in the stapling bar 3. The hammer intended for driving in the staple is itself fixed on a hammer support 14 attached to the sliding carriage 6.
La tige de pousseur 8 est surmontée d'une tête 15 portant un contact pousseur 16 entouré, d'une rondelle isolante 17. Un ressort 18 à spires non jointives pouvant par conséquent être comprimé est en appui sur cette rondelle 17, et il supporte lui-même une autre rondelle isolante 19 pourvue d'une ouverture centrale dans laquelle est logé une pastille 20. La rondelle est coiffée d'un disque isolant 21. La tête de pousseur 15 et ses accessoires coulissent dans une chemise de guidage 22 rapportée sous le chariot coulissant 6. De plus une plaquette de fermeture 23 est également fixée dans une échancrure appropriée du chariot coulissant,' par l'intermédiaire de vis 24. Le ressort 18 se trouve donc ainsi, intercalé entre le chariot coulissant 6 et la tige 9 du vérin. On remarquera au bas de la figure 2 des vis de fixation 25, qui traversent la butée basse 7, les colonnes 5 coiffées de douilles de guidage 26 placées à l'intérieur des ouvertures latérales 27 du chariot coulissant 6, et qui permettent de fixer l'ensemble au barreau d'agrafage 3. Un câble 28 de raccordement électrique est rapporté sur le côté du chariot coulissant, et relié à la pastille 20.The pusher rod 8 is surmounted by a head 15 carrying a pusher contact 16 surrounded by an insulating washer 17. A spring 18 with non-contiguous turns which can consequently be compressed is supported on this washer 17, and it supports it - even another insulating washer 19 provided with a central opening in which is housed a pellet 20. The washer is capped with an insulating disc 21. The pusher head 15 and its accessories slide in a guide jacket 22 attached under the sliding carriage 6. In addition, a closing plate 23 is also fixed in an appropriate notch of the sliding carriage, ' by means of screws 24. The spring 18 is thus thus located, interposed between the sliding carriage 6 and the rod 9 of the cylinder. Note at the bottom of Figure 2 of the fixing screws 25, which pass through the bottom stop 7, the columns 5 topped with guide sleeves 26 placed inside the lateral openings 27 of the sliding carriage 6, and which make it possible to fix the 'together with the stapling bar 3. An electrical connection cable 28 is attached to the side of the sliding carriage, and connected to tablet 20.
Enfin un capteur de fin de course 29 est localisé sous le barreau d'agrafage 3.Finally, a limit switch 29 is located under the stapling bar 3.
Après avoir mis en place sur le plateau 1 les moulures à agrafer, et avoir vérifié le positionnement du chargeur d'agrafes dans la tête de distribution, on peut démarrer l'opération d'agrafage. Le chariot coulissant 6 est alors dans la position montrée plus précisément à la figure 3 où il est en appui contre la butée basse 7. La' tige de pousseur 8 déborde donc sous la butée basse tandis que les colonnes de guidage 5 dépassent au-dessus du chariot coulissant. Le marteau 13 monté sur son support 14 est donc en position basse au niveau inférieur de la tête de distribution.After having set up the stapling moldings on the plate 1, and having checked the positioning of the staple loader in the dispensing head, the stapling operation can be started. The sliding carriage 6 is then in the position shown more precisely in FIG. 3 where it is in abutment against the lower stop 7. The 'push rod 8 therefore overflows under the lower stop while the guide columns 5 protrude above of the sliding carriage. The hammer 13 mounted on its support 14 is therefore in the low position at the lower level of the dispensing head.
•Pour assurer la pose d'une agrafe, on fait actionner le vérin 10 à vitesse réduite ce qui a pour effet de faire sortir la tige 9 du vérin 10. ' Par réaction la potence 12 amorce un mouvement opposé de descente ce qui à pour effet d'amener le presseur 11, en appui sur les moulures. La tige 9 du vérin 10 continuant sa course provoque la montée du chariot coulissant 6 par l'intermédiaire du ressort 18 et de la tige de pousseur 8. La tige de pousseur a donc coulissé dans la butée basse 7 et a soulevé le chariot coulissant 6 jusqu'à ce que le marteau 13 atteigne une agrafe et la pousse contre les moulures à assembler. La résistance qu'opposent les moulures à la pénétration de l'agrafe se répercute par l'intermédiaire du marteau 13 et du chariot coulissant 6, sur le ressort 18 interposé entre celui-ci et la tige de pousseur 8. Le ressort se comprime donc provoquant le rapprochement des rondelles 17 et 19, ce qui assure la mise en contact de la pastille 20 avec le contact pousseur 16 porté par la tête 15. En d'autres termes les moyens de détection, que constituent la pastille 20 et le contact 16, sont activés en réaction à l'effort d'agrafage demandé quand une agrafe aborde les moulures du cadre à assembler et cela à vitesse lente de manière à ne pas émousser le fil d'affûtage de l'agrafe. Ainsi on facilite la pénétration ultérieure de l'agrafe qui suit une trajectoire bien rectiligne et mieux ciblée, sans déformation ultérieure. Ainsi le signal reçu correspond à la détection de l'accostage d'une agrafe sur les moulures. A réception de ce signal la machine accélère la montée du vérin 10. L'insertion complète de l'agrafe se produit grâce à la poursuite du déploiement de la tige 9 de vérin et de la montée du marteau 13, en bénéficiant de l'effet de pince exercée entre le marteau et le presseur 11. Le chariot coulissant 6 arrive alors dans la position haute maximum montrée à la figure 4, pour laquelle l'agrafe a complètement pénétrée dans les moulures. A ce moment-là le chariot 6 est venu au contact du capteur 29, ce qui entraîne l'arrêt du vérin, et le retour du chariot coulissant dans sa position initiale de la figure 3. L'assemblage est sécurisé par ce dispositif, puisqu'une agrafe enfoncée est difficilement visible à l'oeil nu. La machine est prête alors pour la pose d'une nouvelle agrafe.• To ensure the fitting of a staple, the actuator 10 is actuated at reduced speed, which has the effect of causing the rod 9 to come out of the actuator 10. ' By reaction the bracket 12 initiates an opposite downward movement which for effect of bringing the presser 11, bearing on the moldings. The rod 9 of the jack 10 continuing its course causes the sliding carriage 6 to rise via the spring 18 and the pusher rod 8. The pusher rod therefore slides in the bottom stop 7 and raises the sliding carriage 6 until the hammer 13 reaches a staple and pushes it against the moldings to be assembled. The resistance that the moldings oppose to the penetration of the clip is reflected by the hammer 13 and the sliding carriage 6, on the spring 18 interposed between the latter and the pusher rod 8. The spring therefore compresses causing the approximation of the washers 17 and 19, which ensures the contact of the pellet 20 with the pusher contact 16 carried by the head 15. In other words the detection means, which constitute the pellet 20 and the contact 16 , are activated in response to the stapling force requested when a staple approaches the moldings of the frame to be assembled and this at slow speed so as not to dull the sharpening wire of the staple. This facilitates the subsequent penetration of the clip following a trajectory well rectilinear and better targeted, without subsequent deformation. Thus the signal received corresponds to the detection of the docking of a staple on the moldings. On receipt of this signal, the machine accelerates the rise of the jack 10. The complete insertion of the clip occurs thanks to the continued deployment of the jack rod 9 and the rise of the hammer 13, benefiting from the effect of clamp exerted between the hammer and the presser 11. The sliding carriage 6 then arrives in the maximum high position shown in FIG. 4, for which the clip has completely penetrated into the moldings. At this time, the carriage 6 has come into contact with the sensor 29, which causes the actuator to stop, and the sliding carriage to return to its initial position in FIG. 3. The assembly is secured by this device, since '' a pressed-in staple is difficult to see with the naked eye. The machine is then ready for the installation of a new staple.
En cas d'absence d'agrafe au moment de la pose, parce que le chargeur d'agrafe est vide ou parce qu'il y a une anomalie de positionnement de l'agrafe dans la tête de distribution, la montée du chariot coulissant 6 se fera jusqu'à son arrivée en fin de course détectée par le capteur 29. Mais puisqu'il n'y a pas eu d'effort d'enfoncement d'agrafe, le ressort 18 ne s'est pas comprimé et il n'y a pas eu de signal d'accostage émis par le détecteur 20. Cette absence de signal est donc une indication immédiate de l'absence d'agrafe, détection qui permettra à la machine de reprendre 1 ' opération de pose au même endroit après son rechargement. Grâce à ce système fiable il est donc impossible qu'un cadre puisse présenter un manque d'agrafe.If there is no staple at the time of installation, because the staple magazine is empty or because there is an anomaly in the positioning of the staple in the dispensing head, the sliding carriage 6 will be done until its arrival at the end of the stroke detected by the sensor 29. But since there has been no staple driving force, the spring 18 has not compressed and it does not there was no docking signal emitted by the detector 20. This absence of signal is therefore an immediate indication of the absence of a staple, detection which will allow the machine to resume the laying operation in the same place after its reloading. Thanks to this reliable system, it is therefore impossible for a frame to have a lack of staples.
Le dispositif décrit autorise également la pose d'une seconde agrafe en prolongement d'une première agrafe enfoncée dans le bois. Cela est en effet nécessaire pour des moulures à assembler qui présentent une épaisseur plus importante. Quand la partie biseautée de la seconde agrafe arrive en appui contre la partie plane de la première, il y a compression du ressort 18, comme dans le cas précédent, et le signal d'accostage est émis normalement. La seconde agrafe pousse ensuite la première dans les moulures, et prend sa place dans la fente créée dans le bois, qui lui sert de guide et lui évite de s'enfoncer à côté de la précédente .The device described also authorizes the installation of a second staple in extension of a first staple driven into the wood. This is indeed necessary for moldings to be assembled which have a greater thickness. When the bevelled part of the second clip comes to bear against the flat part of the first, there is compression of the spring 18, as in the previous case, and the docking signal is issued normally. The second clip then pushes the first into the moldings, and takes its place in the slot created in the wood, which serves as a guide and prevents it from sinking next to the previous one.
Le fonctionnement pour la pose d'une seconde agrafe est donc tout à fait identique à celui de la première,' et s'il y a absence d'agrafe, elle est détectée de façon équivalente. The operation for the laying of a second clip is quite identical to the first, 'and if there is no clip, it is detected equivalently.

Claims

REVENDICATIONS
1.- Dispositif de détection de l'accostage d'une agrafe pour une machine d'assemblage des cadres, comprenant un barreau d'agrafage recevant une tête de distribution d'agrafes, ainsi qu'un chariot, coulissant verticalement sous ledit barreau le long de colonnes de guidage, et portant un marteau pour l'enfoncement de l'agrafe, ledit chariot étant déplacé par la tige d'un vérin caractérisé en ce que un ressort (18) est intercalé entre le chariot coulissant (6) et la tige (9) du vérin et en ce que ledit ressort est associé à des moyens de détection (16, 20) et active ces moyens en réaction à l'effort d'agrafage demandé quand une agrafe aborde les moulures du cadre à assembler. 1.- Device for detecting the docking of a staple for a frame assembly machine, comprising a stapling bar receiving a staple dispensing head, as well as a carriage, sliding vertically under said bar on along guide columns, and carrying a hammer for driving the staple, said carriage being moved by the rod of a jack characterized in that a spring (18) is interposed between the sliding carriage (6) and the rod (9) of the jack and in that said spring is associated with detection means (16, 20) and activates these means in reaction to the stapling force required when a staple approaches the moldings of the frame to be assembled.
2.- Dispositif de détection selon la revendication 1 caractérisé en ce que le ressort (18) est un ressort à spires non jointives qui est monté sur la tête (15) d'une tige de pousseur (8) reliée à sa partie inférieure à la tige (9) du vérin, et en ce que les moyens de détection sont constitués d'une part d'un contact pousseur (16) placé sur cette tête et entouré d'une rondelle isolante (17) et d'autre part d'une pastille (20) logé dans l'ouverture centrale d'une autre rondelle isolante (19) supportée par le ressort (18) . 2. A detection device according to claim 1 characterized in that the spring (18) is a spring with non-contiguous turns which is mounted on the head (15) of a pusher rod (8) connected to its lower part at the rod (9) of the jack, and in that the detection means consist on the one hand of a pusher contact (16) placed on this head and surrounded by an insulating washer (17) and on the other hand of 'a pad (20) housed in the central opening of another insulating washer (19) supported by the spring (18).
3.- Dispositif de détection selon les revendications 1 et 2 caractérisé en- ce que la tête (15) de la tige de pousseur (8), et ses accessoires, coulissent dans une chemise de guidage (22) rapportée sous le chariot coulissant3. Detection device according to claims 1 and 2 characterized in that the head (15) of the pusher rod (8), and its accessories, slide in a guide jacket (22) attached under the sliding carriage
(6) . (6).
4.- Dispositif de détection selon les revendications 1 et 2 caractérisé en ce que un câble (28) de raccordement électrique est rapporté sur le côté du chariot coulissant (6) et relié à la pastille (20) .4. Detection device according to claims 1 and 2 characterized in that a cable (28) for electrical connection is attached to the side of the sliding carriage (6) and connected to the pad (20).
5.- Procédé pour la mise en oeuvre du dispositif de détection de l'accostage d'une agrafe selon la revendication 1 caractérisé en ce que dans un premier temps le vérin (10) est actionné à vitesse réduite jusqu'à ce que l'agrafe ait abordé les moulures du cadre à vitesse lente de manière à ne pas emousser le fil d'affûtage de l'agrafe, et en ce que dans un second temps, à réception du signal de détection d'accostage, la machine accélère la montée du vérin pour • l'insertion complète de l'agrafe. 5.- Method for implementing the device for detecting the docking of a staple according to claim 1 characterized in that firstly the jack (10) is actuated at reduced speed until the staple approached the moldings of the frame at slow speed so as not to dull the sharpening wire of the staple, and in that in a second step, upon reception of the docking detection signal, the machine accelerates the rise of the jack for • complete insertion of the clip.
EP01273127A 2001-01-12 2001-12-10 Device for detecting positioning of a staple for a frame assembling machine, and method for using said device Expired - Lifetime EP1355770B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0100378A FR2819443B1 (en) 2001-01-12 2001-01-12 DEVICE FOR DETECTING THE ATTACHING OF A CLIP FOR A FRAME ASSEMBLY MACHINE, AND METHOD FOR IMPLEMENTING THE DEVICE
FR0100378 2001-01-12
PCT/FR2001/003893 WO2002055274A1 (en) 2001-01-12 2001-12-10 Device for detecting positioning of a staple for a frame assembling machine, and method for using said device

Publications (2)

Publication Number Publication Date
EP1355770A1 true EP1355770A1 (en) 2003-10-29
EP1355770B1 EP1355770B1 (en) 2006-06-07

Family

ID=8858736

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01273127A Expired - Lifetime EP1355770B1 (en) 2001-01-12 2001-12-10 Device for detecting positioning of a staple for a frame assembling machine, and method for using said device

Country Status (7)

Country Link
US (1) US7062842B2 (en)
EP (1) EP1355770B1 (en)
AT (1) ATE328711T1 (en)
DE (1) DE60120492D1 (en)
ES (1) ES2267672T3 (en)
FR (1) FR2819443B1 (en)
WO (1) WO2002055274A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI591972B (en) * 2014-04-16 2017-07-11 微晶片科技公司 Wireless interference scanning method and device for adaptive frequency hopping

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4421264A (en) * 1981-06-26 1983-12-20 International Business Machines Corporation Variable thickness set compensation for stapler
FR2550121B1 (en) * 1983-08-04 1985-12-06 Cassese Antoine DEVICE FOR ASSEMBLING MULTI-LEAF MOLDINGS BY STAPLING
FR2609925A1 (en) * 1987-01-26 1988-07-29 Bucaille Bernard Machine for stapling mouldings for producing picture frames and similar objects

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO02055274A1 *

Also Published As

Publication number Publication date
ATE328711T1 (en) 2006-06-15
US7062842B2 (en) 2006-06-20
US20040074943A1 (en) 2004-04-22
ES2267672T3 (en) 2007-03-16
EP1355770B1 (en) 2006-06-07
WO2002055274A1 (en) 2002-07-18
FR2819443B1 (en) 2003-03-28
DE60120492D1 (en) 2006-07-20
FR2819443A1 (en) 2002-07-19

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