EP0020222B1 - Automatic-assembly machine for fins, in particular for heat exchangers or radiators - Google Patents

Automatic-assembly machine for fins, in particular for heat exchangers or radiators Download PDF

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Publication number
EP0020222B1
EP0020222B1 EP19800400659 EP80400659A EP0020222B1 EP 0020222 B1 EP0020222 B1 EP 0020222B1 EP 19800400659 EP19800400659 EP 19800400659 EP 80400659 A EP80400659 A EP 80400659A EP 0020222 B1 EP0020222 B1 EP 0020222B1
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EP
European Patent Office
Prior art keywords
fins
machine according
tubes
station
fitting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP19800400659
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German (de)
French (fr)
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EP0020222A1 (en
Inventor
Robert Mian
Jean Lemaire
Michael Choimet
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.)
Saunier Duval Eau Chaude Chauffage SDECC SA
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Saunier Duval Eau Chaude Chauffage SDECC SA
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Publication of EP0020222A1 publication Critical patent/EP0020222A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/08—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal
    • B21D53/085—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal with fins places on zig-zag tubes or parallel tubes

Definitions

  • the invention relates to an automatic fin and tube assembly machine, in particular for heat exchangers or radiators, comprising a press for the continuous distribution of fins ready to be assembled which are then taken up by a transfer system supplying a stacking station, fins which are then subjected to a comb gauge control system before fitting the tubes.
  • DE-A-1452950 notably discloses a device for manufacturing a fin block for a water heater from a continuous press, supplying a station in which the stacking of the fins is ensured in a store.
  • the other handling and transfer operations require successive manipulations which are obviously restrictive and require all the more personnel as the operations are numerous and delicate.
  • the production of an assembly of fins on one or more tubes requires numerous operations precisely because at the start there is a simple strip of sheet metal with continuous unwinding. It is first necessary to cut the strip according to the desired profile then to perform in this profile the necessary punches and the folding of certain internal edges to the orifices or on the side of the profile.
  • the automatic wing assembly machine advantageously solves these problems in that it automatically ensures, from a press providing the fins in continuous movement, all the successive operations leading to the formation of a " finned block "especially for exchanger.
  • the transfer system ensuring the recovery of the press fins is of discontinuous movement, that it alternately feeds at least two stacking stations, than a movable carriage horizontally displaceable at below each stacking station, and transversely to the transfer system, ensures the reception of the fins, that the movable carriage ensures the release of the finned block produced and that these different continuous or discontinuous movements are ensured from the same mechanism motor at press outlet by transmission with chains, shafts, gearboxes and actuators for actuating cylinders.
  • Figures 1 to 3 show general views of the automatic machine intended for the assembly of fins leaving a press 1.
  • the fins 2 shown at the press outlet in the direction of the arrow in FIG. 1 are immediately released from the press after the cutting tool and released step by step. They are then moved by a first small chain conveyor 3 to a sliding sole consisting of two rails 4 on which the fins rest by their end edges.
  • a second chain conveyor 5 is arranged longitudinally above the rails 4 so that the return strands of the chains, arranged at the lower part cause the fins to discontinuously slide along the rails.
  • the chains 5 are provided for this purpose with regularly spaced pushers 6 which attack the fins by their front edge as soon as they have been released by the first small conveyor 3. The fins thus move in a discontinuous movement towards two stations P I and P Z stacking, carried out identically.
  • Upstream of the first station P I is provided a not shown system for counting the fins. As soon as the required number of fins has escaped the conveyor and stacked at station P as described below, the latter lets a new series pass to station P Z , then again to P I , etc. counting system of the induction, cell or other type therefore plays the role of distributor of fins to one or other of the stations P I or P 2 .
  • the system for releasing the fins out of the rails 4 and their stacking is ensured at stations P and P 2 by a sub-assembly of drawers whose frame 7 is visible in FIG. 1 and whose mechanism of a station is shown more in detail in FIGS. 4 and 5.
  • the fins 2 arrive at the frame by sliding on the rails 4, under the action of the pushers not shown.
  • these rails 4 are interrupted and the fins continue their movement by resting by their edges on lateral strips 8 forming continuity with the rails 4. If the fin must cross the station P I shown (FIG. 4 ) to go to station P 2 , it will therefore cross the frame 7 by sliding on these strips then find a new section of rails 4 to station P2.
  • each lateral strip is mounted on a drawer 10 capable of sliding on a sole of the frame 7.
  • Each drawer carries at least one roller 11 with a horizontal axis resting on a cam 12 mounted on a shaft 13.
  • the cam carries a recess 14 of curvature equivalent to that of the roller 11.
  • a camshaft 13a (on the right in the figures) is driven in a continuous rotational movement so that the recess 14a is presented to the roller 11 a at regular time intervals.
  • a coupling rod 17 connects this first camshaft 13a with a connecting rod 18 for operating the second camshaft 13b (on the left in FIG. 5). It is understood that the rotational movement of the first camshaft 13a in the direction of the arrow brings the notch 14a against the roller 1 1 a and that this movement transmitted to the second camshaft 13b in the direction of the arrow simultaneously causes l 'notch 14b against the roller 11b.
  • the support on which the fins 2 are stacked is particularly visible in FIGS. 2, 3 and 6. It essentially consists of a carriage body 20 capable of moving in translation from the zone of release of the fins under the well 9 to the "combing" zone of the fins (described below) then to the zone for removing the finished product as can be seen more precisely in FIG. 3. This translation takes place perpendicular to the rails of the first transfer conveyor.
  • a plate 21 placed above the body of the carriage is movable in height by two lateral jacks 22. This plate supports two guide pins 23 which pass through the carriage body 20 on the one hand by guide blocks 24, and pass through 'other hand a plate 25 by other guide blocks 26.
  • Rods 27 make integral the body of the carriage 20 and said plate 25.
  • the mobile unit 30 carries two centering columns 31 intended to receive the fins.
  • the “carriage” assembly thus produced, illustrated in FIG. 6 therefore moves in translation as indicated above. All of the auxiliary mechanisms and flexible pipes for supplying the jacks are located below the carriage body 20. They are accessible for adjustment and maintenance by a lower chamber 38 disposed under the machine as can be seen more precisely on the figure 2.
  • the jacks 22 hold the plate 21 in the high position and the jack 28 on its side, maintains the centering columns 31 equally in high position so that they extend well above the plate 21.
  • the fins 2 can therefore be stacked on the plate 21 while being guided by these centering columns.
  • the jacks 22 bring the plate 21 back to the low position (case of FIG. 6), to release the fin loader from the frame but the centering columns are always out of the plate 21 to maintain the stacking d 'fins. Then the carriage 20 moves to the combing area of the fins (central part of FIG. 3). There, the plate 21 is raised again so that the stack of fins is level, for combing and fitting described below.
  • the representation of the posts P I and P 2 in FIG. 2 illustrates this combing system. It can be seen at station P 2 that on either side of the central cavity 33 are arranged three groups of combs arranged one above the other. Each group 34 which has a certain number of small combs 35 is maneuvered by a lateral jack 36, which moves it transversely towards the interior of the cavity 33. The lower group 34 slides on the anvil 37 and the other intermediate and upper groups are supported from above.
  • the stacking of fins is at the level of the groups of combs, the latter, actuated by their jacks 36 come to "comb" the fins, that is to say to intervene between them to perfect their centering, their spacing, and position them correctly with respect to each other before the next fitting operation. It will be noted that this operation is done in three stages, first the lower comb group, then the intermediate group and finally the upper group, this in order to correct the alignment of the fins step by step without risk of blocking. It is for this reason that the combing set was carried out in three groups rather than in a single group. The stacking of fins being thus held firmly by the combs 35, the centering columns 31 can therefore be erased.
  • the jack 28 back to its rest position returns the movable block 30 to the low position for which the centering columns 31 are erased under the plate 21 ( Figure 6). From this moment can be carried out the fitting operation, that is to say the introduction by force, into the superimposed orifices of the fins that have cleared the centering columns, of the inner tubes which will ensure cohesion of the fin block and which are intended for the passage of water.
  • FIGS 1, 2, and 3 more specifically, illustrate the fitting mechanism.
  • an endless belt 39 provided with tabs 40 conveys, from a feeder not shown, the tubes 41 intended to be fitted into the fin block.
  • the tubes 41 In the case shown, as there are two orifices in the stack of fins, there are therefore two tubes 41 to be fitted simultaneously.
  • the tubes Upon their arrival at the top of the strip, the tubes roll on the inclined plane 42 one behind the other.
  • a first tube 41 ′ stops in a first longitudinal notch of the inclined plane.
  • this "recovery" operation the access of the following tubes to the longitudinal notches is blocked for a few moments upstream on the inclined plane 42 by a mechanism not shown.
  • FIG. 2 shows in more detail the fitting mechanism arranged in the frame 44, in a vertical section view BB 'perpendicular to the representation of FIG. 2.
  • These centralizers 43 are fixed to a support arm 45 mounted on a pivoting shaft 46 which can slide vertically on lateral guide plates 47.
  • a connecting rod 48 provided with cams 49 ensures the pivoting of the centralizers downwards under the effect of a jack 50 disposed at the upper part of the frame 44.
  • Each centralizer carries a latching mechanism 51 of the tubes 41.
  • a new operation of the carriage assembly results in the disengagement of the fin block thus produced as seen in FIG. 3.
  • FIGS. 1 and 2 illustrate said motion transmission mechanisms.
  • a control unit 52 coupled to the press drive motor, the movement is transmitted, via the angular gear 53 to a continuously rotating transmission shaft 54 which runs all along rails 4 to the other end of the machine in the housing 55.
  • the continuous movement of the shaft 54 is transmitted by this housing, in a discontinuous movement in advance not to not chains 5, in a continuous movement of rotation of other cams ensuring the operation of the actuators actuated for the other stages of production, and in particular of the actuators of the carriage assembly described above.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Assembly (AREA)

Description

L'invention se rapporte à une machine automatique d'assemblage d'ailettes et de tubes notamment pour échangeurs de chaleur ou radiateurs, comportant une presse à distribution continue d'ailettes prêtes à être assemblées qui sont ensuite reprises par un système de transfert alimentant un poste d'empilement, ailettes qui sont soumises ensuite à une système de contrôle d'écartement à peignes avant l'emmanchement des tubes.The invention relates to an automatic fin and tube assembly machine, in particular for heat exchangers or radiators, comprising a press for the continuous distribution of fins ready to be assembled which are then taken up by a transfer system supplying a stacking station, fins which are then subjected to a comb gauge control system before fitting the tubes.

On connait notamment par le DE-A-1452950 un dispositif de fabrication de bloc à ailettes pour chauffe-eau à partir d'une presse en continu, alimentant un poste dans lequel est assuré l'empilement des ailettes dans un magasin. Dans ces techniques connues, les autres opérations de manutention et de transfert nécessitent des manipulations successives qui sont évidemment contraignantes et exigent d'autant plus de personnel que les opérations sont nombreuses et délicates. Or la réalisation d'un assemblage d'ailettes sur un ou plusieurs tubes nécessite justement de nombreuses opérations du fait qu'au départ on a une simple bande de tôle à déroulement continu. Il faut en premier lieu découper la bande suivant le profil recherché puis effecteur dans ce profil les poinçonnages nécessaires et le repliage de certains bords internes aux orifices ou encore sur le côté du profil. Puis le transfert de ces aiiettes doit être assuré jusqu'au poste de comptage où le nombre requis de pièces est disposé en superposition pour permettre ensuite l'introduction dans les orifices du ou des tubes sur lesquels sont emmanchés les ailettes. A cela s'ajoutent les opérations de contrôle d'espacement et de redressage des ailettes. Pour cette fabrication selon les techniques antérieures se posait aussi un problème de cadences du fait du fontionne- ment rapide à certains postes et plus lent à d'autres, nécissitant des zones tampon avec stockage et reprise.DE-A-1452950 notably discloses a device for manufacturing a fin block for a water heater from a continuous press, supplying a station in which the stacking of the fins is ensured in a store. In these known techniques, the other handling and transfer operations require successive manipulations which are obviously restrictive and require all the more personnel as the operations are numerous and delicate. However, the production of an assembly of fins on one or more tubes requires numerous operations precisely because at the start there is a simple strip of sheet metal with continuous unwinding. It is first necessary to cut the strip according to the desired profile then to perform in this profile the necessary punches and the folding of certain internal edges to the orifices or on the side of the profile. Then the transfer of these fins must be ensured up to the counting station where the required number of parts is arranged in superposition to then allow the introduction into the orifices of the tube or tubes on which the fins are fitted. To this are added the spacing control and straightening operations of the fins. For this production according to the prior techniques there was also a problem of rates due to the rapid operation at certain stations and slower at others, requiring buffer zones with storage and recovery.

La machine automatique d'assemblage d'ailtetes selon l'invention résoud avantageusement ces problèmes en ce qu'elle assure automatiquement, à partir d'une presse fournissant les ailettes en mouvement continu, toutes les opérations successives aboutissant à la formation d'un "bloc à ailettes" notamment pour échangeur.The automatic wing assembly machine according to the invention advantageously solves these problems in that it automatically ensures, from a press providing the fins in continuous movement, all the successive operations leading to the formation of a " finned block "especially for exchanger.

Les buts de l'invention sont atteints par le fait que le système de transfert assurant la reprise des ailettes de la presse est à mouvement discontinu, qu'il alimente alternativement au moins deux postes d'empilement, qu'un chariot mobile déplaçable horizontalement au dessous de chaque poste d'empilement, et transversalement au système de transfert, assure la réception des ailettes, que le chariot mobile assure le dégagement du bloc à ailettes réalisé et que ces différents mouvements continus ou discontinus sont assurés à partir d'un même mécanisme moteur en sortie de presse par transmission à chaînes, arbres, renvois d'angle et cames de manoeuvre de vérins.The objects of the invention are achieved by the fact that the transfer system ensuring the recovery of the press fins is of discontinuous movement, that it alternately feeds at least two stacking stations, than a movable carriage horizontally displaceable at below each stacking station, and transversely to the transfer system, ensures the reception of the fins, that the movable carriage ensures the release of the finned block produced and that these different continuous or discontinuous movements are ensured from the same mechanism motor at press outlet by transmission with chains, shafts, gearboxes and actuators for actuating cylinders.

Les caractéristiques particulières et avantages de l'invention ressortiront de la description suivante de la machine automatique en référence aux dessins annexés qui représentent:The particular characteristics and advantages of the invention will emerge from the following description of the automatic machine with reference to the appended drawings which represent:

Figure imgb0001
Les figures 1 à 3 montrent des vues générales de la machine automatique destinée à l'assemblage d'ailettes sortant d'une presse 1.
Figure imgb0001
 Figures 1 to 3 show general views of the automatic machine intended for the assembly of fins leaving a press 1.

Les ailettes 2 représentées en sortie de presse selon le sens de la flèche sur la figure 1, sont aussitôt dégagées de la presse après l'outil de coupe et libérées pas à pas. Elles sont alors déplacées par un premier petit convoyeur à chaînes 3 jusqu'à une sole de glissement constituée de deux rails 4 sur lesquels les ailettes reposent par leurs bords d'extrémité. Un second convoyeur à chaînes 5 est disposé longitudinalement au-dessus des rails 4 pour que les brins de retour des chaînes, disposés à la partie inférieure entrainent de façon discontinue selon les fléches les ailettes en les faisant glisser sur les rails. Les chaînes 5 sont munies à cet effet de poussoirs 6 régulièrement espacés qui attaquent les ailettes par leur bordure antérieure dès qu'elles ont été libérées par le premier petit convoyeur 3. Les ailettes se déplacent ainsi d'un mouvement discontinu en direction de deux postes d'empilement PI et PZ, réalisés de façon identique. En amont du premier poste PI est prévu un système non représenté de comptage des ailettes. Dès que le nombre d'ailettes requis a échappé au convoyeur et s'est empilé au poste P comme décrit plus loin, ce dernier laisse passer une nouvelle série vers le poste PZ, puis à nouveau vers PI, etc... Ce système de comptage du type à induction, à cellule ou autre joue donc le rôle de distributeur d'ailettes vers l'un ou l'autre des postes PI ou P2.The fins 2 shown at the press outlet in the direction of the arrow in FIG. 1 are immediately released from the press after the cutting tool and released step by step. They are then moved by a first small chain conveyor 3 to a sliding sole consisting of two rails 4 on which the fins rest by their end edges. A second chain conveyor 5 is arranged longitudinally above the rails 4 so that the return strands of the chains, arranged at the lower part cause the fins to discontinuously slide along the rails. The chains 5 are provided for this purpose with regularly spaced pushers 6 which attack the fins by their front edge as soon as they have been released by the first small conveyor 3. The fins thus move in a discontinuous movement towards two stations P I and P Z stacking, carried out identically. Upstream of the first station P I is provided a not shown system for counting the fins. As soon as the required number of fins has escaped the conveyor and stacked at station P as described below, the latter lets a new series pass to station P Z , then again to P I , etc. counting system of the induction, cell or other type therefore plays the role of distributor of fins to one or other of the stations P I or P 2 .

Le système de libération des ailettes hors des rails 4 et leur empilement est assuré aux postes P et P2 par un sous-ensemble tiroirs dont le bâti 7 est visible à la figure 1 et dont le mécanisme d'un poste est représenté plus en détail aux figures 4 et 5. Les ailettes 2 arrivent au bâti en glissant sur les rails 4, sous l'action des poussoirs non représentés. A la partie centrale du bâti, ces rails 4 sont interrompus et les ailettes poursuivent leur mouvement en prenant appui par leurs bords sur des réglettes latérales 8 formant continuité avec les rails 4. Si l'ailette doit franchir le poste PI représenté (figure 4) pour aller jusqu'au poste P2, elle traversera donc le bâti 7 en glissant sur ces réglettes puis retrouvera une nouvelle section de rails 4 jusqu'au poste P2. Par contre si l'empilement est prévu au poste PI, dès que l'ailette aura atteint le milieu des réglettes 8, l'effacement de ces dernières provoquera sa chute par le puits central 9 prévu au centre du bâti. L'empilement des ailettes s'effectue sur un support particulier, placé au milieu du puits, qui sera décrit plus loin. L'effacement cyclique des réglettes 8 est assuré de la façon suivante. Chaque réglette latérale est montée sur un tiroir 10 susceptible de glisser sur une semelle du bâti 7. Chaque tiroir porte au moins un galet 11 à axe horizontal prenant appui sur une came 12 montée sur un arbre 13. La came porte un évidement 14 de courbure équivalente à celle du galet 11. Un arbre à cames 13a (à droite sur les figures) est animé d'un mouvement de rotation continu pour que l'évidement 14a se présente au galet 11 a à des intervalles de temps réguliers. Une tige d'accouplement 17 met en liaison ce premier arbre à cames 13a avec une biellette 18 de manoeuvre du second arbre à cames 13b (à gauche sur la figure 5). On comprend que le mouvement de rotation du premier arbre à cames 13a dans le sens de la flèche amène l'échancrure 14a contre le galet 1 1 a et que ce mouvement transmis au second arbre à cames 13b dans le sens de la flèche amène simultanément l'échancrure 14b contre le galet 11b. Des ressorts 19 agissent alors dans le sens du déplacement latéral vers l'extérieur des tiroirs 10; l'écartement qui en résulte des réglettes 8 libère les ailettes 2 qui tombent par le puits 9 sur le support d'empilement. Puis la rotation de l'arbre à cames se poursuivant, les cames 12 provoquent le resserrement des tiroirs de telle sorte que les réglettes soient à nouveau en position pour recevoir une nouvelle ailette. En outre un vérin 15, agissant par un levier 16 permet le blocage d'une came 12 (enveloppant librement l'arbre 13a) qui maintient alors les réglettes resserrées, -ceci dans le cas où les ailettes doivent dépasser le poste considéré pour atteindre le poste suivant comme indiqué précédemment.The system for releasing the fins out of the rails 4 and their stacking is ensured at stations P and P 2 by a sub-assembly of drawers whose frame 7 is visible in FIG. 1 and whose mechanism of a station is shown more in detail in FIGS. 4 and 5. The fins 2 arrive at the frame by sliding on the rails 4, under the action of the pushers not shown. At the central part of the frame, these rails 4 are interrupted and the fins continue their movement by resting by their edges on lateral strips 8 forming continuity with the rails 4. If the fin must cross the station P I shown (FIG. 4 ) to go to station P 2 , it will therefore cross the frame 7 by sliding on these strips then find a new section of rails 4 to station P2. On the other hand, if the stack is provided at station P I , as soon as the fin has reached the middle of the strips 8, the erasure of the latter will cause it to fall by the central well 9 provided in the center of the frame. The stacking of the fins is carried out on a particular support, placed in the middle of the well, which will be described later. The cyclic erasure of the strips 8 is ensured in the following manner. Each lateral strip is mounted on a drawer 10 capable of sliding on a sole of the frame 7. Each drawer carries at least one roller 11 with a horizontal axis resting on a cam 12 mounted on a shaft 13. The cam carries a recess 14 of curvature equivalent to that of the roller 11. A camshaft 13a (on the right in the figures) is driven in a continuous rotational movement so that the recess 14a is presented to the roller 11 a at regular time intervals. A coupling rod 17 connects this first camshaft 13a with a connecting rod 18 for operating the second camshaft 13b (on the left in FIG. 5). It is understood that the rotational movement of the first camshaft 13a in the direction of the arrow brings the notch 14a against the roller 1 1 a and that this movement transmitted to the second camshaft 13b in the direction of the arrow simultaneously causes l 'notch 14b against the roller 11b. Springs 19 then act in the direction of lateral movement towards the outside of the drawers 10; the resulting spacing of the strips 8 releases the fins 2 which fall through the well 9 on the stacking support. Then the rotation of the camshaft continues, the cams 12 cause the drawers to tighten so that the sliders are again in position to receive a new fin. In addition a cylinder 15, acting by a lever 16 allows the blocking of a cam 12 (freely enveloping the shaft 13a) which then keeps the bars tightened, this in the case where the fins must exceed the post considered to reach the next post as previously indicated.

Le support sur lequel s'empilent les ailettes 2 est particulièrement visible aux figures 2, 3 et 6. Il est essentiellement constitué d'un corps de chariot 20 susceptible de se déplacer en translation de la zone de libération des ailettes sous le puits 9 à la zone de "peignage" des ailettes (décrit plus loin) puis à la zone de retrait du produit fini comme on le voit plus précisément à la figure 3. Cette translation s'effectue perpendiculairement aux rails du premier convoyeur de transfert. Un plateau 21 placé au-dessus du corps du chariot est déplaçable en hauteur par deux vérins latéraux 22. Ce plateau supporte deux axes de guidage 23 qui traversent d'une part le corps de chariot 20 par des blocs de guidage 24, et traversent d'autre part une plaque 25 par d'autres blocs de guidage 26. Des tiges 27 rendent solidaires le corps du chariot 20 et ladite plaque 25. Un vérin-28 monté sur des entretoises 29 fixées aux axes de guidage 23, agit sur un bloc mobile 30 lui-même coulissant sur ces axes de guidages, à l'aide des manchons coulissants 32. Le bloc mobile 30 porte deux colonnes de centrage 31 destinées à recevoir les ailettes.The support on which the fins 2 are stacked is particularly visible in FIGS. 2, 3 and 6. It essentially consists of a carriage body 20 capable of moving in translation from the zone of release of the fins under the well 9 to the "combing" zone of the fins (described below) then to the zone for removing the finished product as can be seen more precisely in FIG. 3. This translation takes place perpendicular to the rails of the first transfer conveyor. A plate 21 placed above the body of the carriage is movable in height by two lateral jacks 22. This plate supports two guide pins 23 which pass through the carriage body 20 on the one hand by guide blocks 24, and pass through 'other hand a plate 25 by other guide blocks 26. Rods 27 make integral the body of the carriage 20 and said plate 25. A cylinder-28 mounted on spacers 29 fixed to the guide pins 23, acts on a block mobile 30 itself sliding on these guide pins, using sliding sleeves 32. The mobile unit 30 carries two centering columns 31 intended to receive the fins.

L'ensemble "chariot" ainsi réalisé, illustré-à la figure 6 se déplace par conséquent en translation comme indiqué plus haut. L'ensemble des mécanismes annexes et des tuyauteries souples d'alimentation des vérins se trouve au-dessous du corps de chariot 20. Ils sont accessibles pour réglage et entretien par une chambre inférieure 38 disposée sous la machine comme on le voit plus précisément à la figure 2.The “carriage” assembly thus produced, illustrated in FIG. 6 therefore moves in translation as indicated above. All of the auxiliary mechanisms and flexible pipes for supplying the jacks are located below the carriage body 20. They are accessible for adjustment and maintenance by a lower chamber 38 disposed under the machine as can be seen more precisely on the figure 2.

Quand l'ensemble "chariot" se trouve donc sous le puits 9 dans la zone de libération des ailettes, les vérins 22 maintiennent le plateau 21 en position haute et le vérin 28 de son côté, maintient les colonnes de centrage 31 égalé-ment en position haute pour qu'elles débordent largement au-dessus du plateau 21. Les ailettes 2 peuvent donc s'empiler sur le plateau 21 en étant guidées par ces colonnes de centrage.When the "carriage" assembly is therefore under the well 9 in the fin release zone, the jacks 22 hold the plate 21 in the high position and the jack 28 on its side, maintains the centering columns 31 equally in high position so that they extend well above the plate 21. The fins 2 can therefore be stacked on the plate 21 while being guided by these centering columns.

Une fois cette opération terminée, les vérins 22 raménent le plateau 21 en position basse (cas de la figure 6), pour dégager le chargeur d'ailettes du bâti mais les colonnes de centrage sont toujours sorties du plateau 21 pour maintenir l'empilement d'ailettes. Puis le chariot 20 se déplace jusqu'à la zone de peignage des ailettes (partie centrale de la figure 3). Là- le plateau 21 est à nouveau soulevé pour que l'empilement d'ailettes soit à niveau, en vue du peignage et de l'emmanchement décrit ci-après.Once this operation is complete, the jacks 22 bring the plate 21 back to the low position (case of FIG. 6), to release the fin loader from the frame but the centering columns are always out of the plate 21 to maintain the stacking d 'fins. Then the carriage 20 moves to the combing area of the fins (central part of FIG. 3). There, the plate 21 is raised again so that the stack of fins is level, for combing and fitting described below.

La représentation des postes PI et P2 de la figure 2 illustre ce système de peignage. On voit au poste P2 que de part et d'autre de la cavité centrale 33 sont disposés trois groupes de peignes disposés les uns au-dessus des autres. Chaque groupe 34 qui possède un certain nombre de petits peignes 35 est manoeuvré par un vérin latéral 36, qui le déplace transversalement vers l'intérieur de la cavité 33. Le groups inférieur 34 glisse sur l'enclume 37 et les autres groupes intermédiaires et supérieurs sont en appui par dessus.The representation of the posts P I and P 2 in FIG. 2 illustrates this combing system. It can be seen at station P 2 that on either side of the central cavity 33 are arranged three groups of combs arranged one above the other. Each group 34 which has a certain number of small combs 35 is maneuvered by a lateral jack 36, which moves it transversely towards the interior of the cavity 33. The lower group 34 slides on the anvil 37 and the other intermediate and upper groups are supported from above.

Quand par la manoeuvre de l'ensemble chariot, l'empilage d'ailettes se trouve au niveau des groupes de peignes, ces derniers, actionnés par leurs vérins 36 viennent "peigner" les ailettes, c'est-à-dire s'interposer entre elles pour parfaire leur centrage, leur espacement, et les positionner correctement les unes vis-à- vis des autres avant l'opération suivante d'emmanchement. On notera que cette opération se fait en trois temps, d'abord le groupe de peignes inférieur, puis le groupe intermédiaire et enfin le groups supérieur, ceci afin de rectifier l'alignement des ailettes de proche en proche sans risque de blocage. C'est pour cette raison que l'ensemble de peignage a été réalisé en trois groupes plutôt qu'en un seul groupe. L'empilage d'ailettes étant ainsi maintenu, fermement par les peignes 35, les colonnes de centrage 31 peuvent donc s'effacer. Le vérin 28 en retour à sa position repos fait revenir le bloc mobile 30 en position basse pour laquelle les colonnes de centrage 31 s'effacent sous le plateau 21 (figure 6). A partir de ce moment peut s'effecteur l'opération d'emmanchement c'est-à-dire d'introduction en force, dans les orifices superposés des ailettes qu'ont dégagé les colonnes de centrage, des tubes intérieurs qui assureront la cohésion du bloc à ailettes et qui sont destinés au passage de l'eau.When by the operation of the carriage assembly, the stacking of fins is at the level of the groups of combs, the latter, actuated by their jacks 36 come to "comb" the fins, that is to say to intervene between them to perfect their centering, their spacing, and position them correctly with respect to each other before the next fitting operation. It will be noted that this operation is done in three stages, first the lower comb group, then the intermediate group and finally the upper group, this in order to correct the alignment of the fins step by step without risk of blocking. It is for this reason that the combing set was carried out in three groups rather than in a single group. The stacking of fins being thus held firmly by the combs 35, the centering columns 31 can therefore be erased. The jack 28 back to its rest position returns the movable block 30 to the low position for which the centering columns 31 are erased under the plate 21 (Figure 6). From this moment can be carried out the fitting operation, that is to say the introduction by force, into the superimposed orifices of the fins that have cleared the centering columns, of the inner tubes which will ensure cohesion of the fin block and which are intended for the passage of water.

Les figures 1, 2, et 3 plus précisément, illustrent le mécanisme d'emmanchement.Figures 1, 2, and 3 more specifically, illustrate the fitting mechanism.

A la figure 3 une bande sans fin 39 munie de taquets 40 achemine, à partir d'un alimenteur non représenté les tubes 41 destinés à s'emmancher dans le bloc à ailettes. Dans le cas de figure représenté, comme il y a deux orifices dans l'empilement d'ailettes, il y a donc deux tubes 41 à emmancher simultanément. A leur arrivée au sommet de la bande, les tubes roulent sur le plan incliné 42 les uns derrière les autres. Un premier tube 41' s'immobilise dans une première encoche longitudinale du plan incliné. Le second tube arrivant derrière roule sur le tube 41' immobilisé dans l'encoche, et poursuit sa descente jusqu'à une deuxième encoche longitudinale où il s'immobilise. A partir de là les deux tubes sont en position pour être repris par le système d'emmanchement décrit ci-après. Pendant cette opération de "reprise" l'accès des tubes suivants aux encoches longitudinales est bloqué quelques instants en amont sur le plan incliné 42 par un mécanisme non représenté.In FIG. 3, an endless belt 39 provided with tabs 40 conveys, from a feeder not shown, the tubes 41 intended to be fitted into the fin block. In the case shown, as there are two orifices in the stack of fins, there are therefore two tubes 41 to be fitted simultaneously. Upon their arrival at the top of the strip, the tubes roll on the inclined plane 42 one behind the other. A first tube 41 ′ stops in a first longitudinal notch of the inclined plane. The second tube arriving behind rolls on the tube 41 'immobilized in the notch, and continues its descent to a second longitudinal notch where it stops. From there the two tubes are in position to be taken up by the fitting system described below. During this "recovery" operation, the access of the following tubes to the longitudinal notches is blocked for a few moments upstream on the inclined plane 42 by a mechanism not shown.

On voit à la figure 2 au poste PIla première phase d'emmanchement et au poste P2 la seconde phase. Au poste PIles deux tubes 41 préalablement disposés horizontalement, côte à côte dans leurs encoches se trouvent disposés en face de deux centreurs 43 disposés à l'intérieur du bâti 44 du mécanisme d'emmanchement. La disposition et le montage de ces centreurs sont décrits en se référant à la figure 2 ainsi qu'à la figure 7 qui montre plus en détail le mécanisme d'emmanchement disposé dans le bâti 44, suivant une vue en coupe verticale BB' perpendiculaire à la représentation de la figure 2. Ces centreurs 43 sont fixés à un bras support 45 monté sur un arbre pivotant 46 pouvant coulisser verticalement sur des plaques latérales de guidage 47. Une bielle 48 munie de cames 49 assure le pivotement des centreurs vers le bas sous l'effet d'un vérin 50 disposé à la partie supérieure du bâti 44. Chaque centreur porte un mécanisme d'encliquetage 51 des tubes 41.We see in Figure 2 at the PI station first fitting phase and at P 2 the second phase. At the PIles station, two tubes 41 previously arranged horizontally, side by side in their notches are located opposite two centralizers 43 arranged inside the frame 44 of the fitting mechanism. The arrangement and mounting of these centralizers are described with reference to FIG. 2 as well as to FIG. 7 which shows in more detail the fitting mechanism arranged in the frame 44, in a vertical section view BB 'perpendicular to the representation of FIG. 2. These centralizers 43 are fixed to a support arm 45 mounted on a pivoting shaft 46 which can slide vertically on lateral guide plates 47. A connecting rod 48 provided with cams 49 ensures the pivoting of the centralizers downwards under the effect of a jack 50 disposed at the upper part of the frame 44. Each centralizer carries a latching mechanism 51 of the tubes 41.

On voit à la figure 2 poste PIle profil des tubes 41 prêts à être emmanchés sur les centreurs 43, sous la poussée d'un mécanisme ou vérin non représenté extérieur au bâti 44. Chaque tube 41 ainsi emmanché vient en butée contre le bras support 45. Le mécanisme d'encliquetage 51, à bille et ressort a pour objet de maintenir les tubes sur les centreurs pendant leur déplacement. Ensuite l'action du vérin 50 sur le bras support 45 provoque un double mouvement de translation vers le bas dudit bras support et de pivotement des centreurs 43, du fait du déplacement de la bielle 48 commandé par la came 49 suivant le profil d'un plan incliné visible à la figure 2.We see in Figure 2 PIle profile of the tubes 41 ready to be fitted on the centralizers 43, under the thrust of a mechanism or actuator not shown outside the frame 44. Each tube 41 thus fitted abuts against the support arm 45 The purpose of the latching mechanism 51, with ball and spring, is to hold the tubes on the centralizers during their movement. Then the action of the jack 50 on the support arm 45 causes a double movement of translation downwards of said support arm and of pivoting of the centralizers 43, due to the displacement of the connecting rod 48 controlled by the cam 49 according to the profile of a inclined plane visible in Figure 2.

Quand les deux tubes 41 emmanchés sont en position verticale comme représenté à la figure 7, la descente 45 se poursuit et les tubes pénètrent en force dans les orifices du bloc à ailettes immobilisé sur son plateau support. Puis le retrait du vérin 50 fait remonter le bras support 45. Les centreurs 43 se dégagent aisément des tubes 41 puisque l'encliquetage 51 est faible. Ils reviennent ensuite par un mouvement inverse vers leur position première, prêts à recevoir de nouveaux tubes.When the two fitted tubes 41 are in a vertical position as shown in FIG. 7, the descent 45 continues and the tubes forcefully enter the orifices of the fin block immobilized on its support plate. Then the withdrawal of the jack 50 brings up the support arm 45. The centralizers 43 are easily released from the tubes 41 since the snap-fastening 51 is weak. They then return by a reverse movement to their first position, ready to receive new tubes.

Une nouvelle manoeuvre de l'ensemble chariot aboutit au dégagement du bloc à ailettes ainsi réalisé comme on voit à la figure 3.A new operation of the carriage assembly results in the disengagement of the fin block thus produced as seen in FIG. 3.

L'ensemble des dispositifs précédemment décrits fonctionne en parfait synchronisme, tous les transferts s'effectuant en mouvement discontinu à partir d'un mouvement continu de production de pièces.All of the previously described devices operate in perfect synchronism, all transfers being carried out in discontinuous movement from a continuous movement of production of parts.

Tous ces mouvements sont assurés à partir d'un même mécanisme moteur disposé au niveau de la presse. On se réfère aux figures 1 et 2 qui illustrent lesdits mécanismes de transmission de mouvement. A partir d'un boîtier de commande 52 accouplé au moteur d'entraine- ment de la presse, le mouvement se transmets, par l'intermédiaire des renvois d'angle 53 à un arbre de transmission 54 à rotation continue qui court tout le long des rails 4 jusqu'à l'autre extrémité de la machine au boîtier 55. A l'aide de jeux de cames et pignons le mouvement continu de l'arbre 54 est transmis par ce boîtier, en un mouvement discontinu d'avance pas à pas des chaînes 5, en un mouvement continu de rotation d'autres cames assurant la manoeuvre des vérins mis en action pour les autres étapes de réalisation, et notamment des vérins de l'ensemble chariot précédemment décrit.All these movements are ensured from the same motor mechanism arranged at the press. Reference is made to FIGS. 1 and 2 which illustrate said motion transmission mechanisms. From a control unit 52 coupled to the press drive motor, the movement is transmitted, via the angular gear 53 to a continuously rotating transmission shaft 54 which runs all along rails 4 to the other end of the machine in the housing 55. Using sets of cams and pinions the continuous movement of the shaft 54 is transmitted by this housing, in a discontinuous movement in advance not to not chains 5, in a continuous movement of rotation of other cams ensuring the operation of the actuators actuated for the other stages of production, and in particular of the actuators of the carriage assembly described above.

Claims (16)

1. A machine for the assembly of fins (2) and tubes (41) for heat exchangers or radiators in particular comprising a continuous dispensing press (1) of fins ready for assembly which are then taken up by a transfer system (3, 5) supplying a stacking station (P), which fins are then subjected to an interspacing control system with combs (35) before the fitting of tubes (41), characterised in that the transfer system (5) has a discontinuous movement, that this transfer system alternately supplies at least two stacking stations (P P,), that a movable carriage (20) which may be displaced horizontally below each stacking station and transversely to the said transfer system ensures the reception of fins (2), that the movable carriage ensures the release of the block of fins made and that these various continuous or discontinuous movements are ensured on the basis of one and the same motor mechanism at the press outlet by chain drive (5), shafts (54), bevel gears (53, 55) and cams operating the jacks.
2. A machine according to claim 1, characterised in that the take up of the fins on leaving the press by a chain conveyor (5) disposed longitudinally above rails (4) and provided with appropriate push rods (6) is ensured by a small intermediate chain conveyor (3) between the press and the transfer conveyor.
3. A machine according to claims 1 and 2, characterised in that the stacking stations P are disposed successively below the chain conveyor (5).
4. A machine according to claims 1 and 3, characterised in that the fins are distributed; alternately towards one or the other of the stacking stations Pi and P2 under the control of a counting system arranged ahead of the first station PI,
5. A machine according to claim 1, characterised in that at the level of stacking station P, the rails (4) for the transfer of the fins are replaced by guide strips (8) which release the fins into a central well provided at the centre of the said station.
6. A machine according to claim 5, characterised in that the guide strips (8) are carried by slides (10) bearing on cam (12) carried by shaft (13) which is endowed with continuous rotary motion, the cam being provided with a hollowed out portion (14) producing a cyclic transverse displacement of the said slides.
7. A machine according to claims 5 and 6, characterised in that a jack (16) allows the cam (12) to be locked to maintain the guide strips (8) in a non-retracted position in the case where the fins must pass over the station in question to reach the following station.
8. A machine according to claims 1 and 3, characterised in that the movable carriage (20) ensuring the reception of the stack of fins and the transfer of this stack is supporting a plate (21) which is displaceable in height by jacks (22) and centering columns (31) intended to receive the fins, which are also movable in height in relation to the carriage and in relation to the plate.
9. A machine according to claim 8, characterised in that plate (21) is supporting two guide pins (23) which, on the one hand, pass through the body of carriage (20) via guide blocks (24) and on the other hand, a plate (25) via other guide blocks (26) and in that the centering columns (31) are mounted on a movable block sliding on the guide pins and being manoeuvered by a jack (28).
10. A machine according to claims 1 and 8, characterised in that the control station for the interspacing of the fins intervenes on the stack carried by the plate (21) being in the high position with the centering columns (31) also being in the high position and comprises on either side of the stack, a comb assembly which is actuated by the jacks.
11. A machine according to claim 10, characterised in that the assembly of combs (35) is separated into three or several groups (35) operating independently and progressively allowing the alignment of the fins of the stack to be rectified step by step.
12. A machine according to claims 1 and 8, characterised in that the fitting operation of the block of fins takes place on the stack carried by plate (21) in the high position with the centering columns (31) being withdrawn below the plate and is effected by means of a frame (44) disposed above the combing station and being provided with mechanisms for the insertion, orientation and fitting of the tubes intended to be fitted inside the stack of fins.
13. A machine according to claim 12, characterised in that the mechanism for the insertion of the tubes (41) supplied by a conveyor belt (39), on the fitting frame (44) comprises an inclined plane (42) provided with a first transverse notch wherein the first tube is arrested and ending in a second transverse notch wherein a second tube is arrested after it has rolled over the first one so that groups of two tubes should be arrested horizontally facing the fitting frame.
14. A machine according to claims 12 and 13, characterised in that the take up of the tubes by the fitting mechanism is ensured by centering tools (43) provided with a catch engagement mechanism (51) whereon the tubes are fitted under the thrust of a jack outside frame (44).
15. A machine according to claims 12 and 14, characterised in that the centering tools (43) are fixed to a support arm (45) which is mounted on a swivelling pin (46) which slides vertically on side guide plates (47) under the action of a jack (50) and in that during this sliding movement, a cam (49) ensures the swivelling of the centering tools towards the bottom.
16. A machine according to claims 12 and 15, characterised in that the jack (50), after the swivelling of the centering tools, continues the vertical displacement movement of the centering tools (43) until the complete fitting of the tubes (41) is ensured in the block of fins.
EP19800400659 1979-05-14 1980-05-13 Automatic-assembly machine for fins, in particular for heat exchangers or radiators Expired EP0020222B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7912147A FR2456568A1 (en) 1979-05-14 1979-05-14 AUTOMATIC FIN ASSEMBLY MACHINE PARTICULARLY FOR HEAT EXCHANGER OR RADIATORS
FR7912147 1979-05-14

Publications (2)

Publication Number Publication Date
EP0020222A1 EP0020222A1 (en) 1980-12-10
EP0020222B1 true EP0020222B1 (en) 1983-05-25

Family

ID=9225411

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800400659 Expired EP0020222B1 (en) 1979-05-14 1980-05-13 Automatic-assembly machine for fins, in particular for heat exchangers or radiators

Country Status (5)

Country Link
EP (1) EP0020222B1 (en)
JP (1) JPS5626645A (en)
DE (1) DE3063443D1 (en)
ES (1) ES8102484A1 (en)
FR (1) FR2456568A1 (en)

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CN107598010A (en) * 2017-09-22 2018-01-19 徐州德坤电气科技有限公司 A kind of control method of air conditioner fin assembly automatic expanding guard system
CN107855430A (en) * 2017-09-22 2018-03-30 徐州德坤电气科技有限公司 A kind of fin assembly automatic expanding guard system supporting steel plate inserts the control method of unit

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GB8811755D0 (en) * 1988-05-18 1988-06-22 Fin Machine Co Ltd Radiator assembly system
CN102896238B (en) * 2012-10-29 2015-04-22 东莞汉旭五金塑胶科技有限公司 Automatic assembly method of radiator fin and base and device thereof
CN107649600B (en) * 2017-09-22 2019-02-05 徐州德坤电气科技有限公司 A kind of control method of three station fin assembly code fetch unit of automatic expanding guard system
CN109483233A (en) * 2019-01-11 2019-03-19 东莞市中电爱华电子有限公司 Radiator automatic assembly equipment and assembly method
JP7266292B2 (en) * 2019-07-01 2023-04-28 日高精機株式会社 End plate setting device for heat exchanger
CN114131322B (en) * 2021-10-18 2022-06-21 富贤勋电子科技(南通)有限公司 Metal radiator assembling device used before reflow soldering treatment
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CN115241590B (en) * 2022-08-03 2023-08-18 东莞市德安五金模具有限公司 Auxiliary assembly structure for aluminum profile radiator of new energy automobile battery

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DE1452950C3 (en) * 1965-12-02 1973-01-04 Joh. Vaillant Kg, 5630 Remscheid Device for producing lamellar bodies, preferably for gas water heaters
GB1111140A (en) * 1966-02-07 1968-04-24 Hudson Engineering Corp Manufacture of metal plate fin tube modules
FR1535785A (en) * 1967-07-17 1968-08-09 Inst Leichtbau Und Okonom Verw Machine for fitting fins onto pipes as well as pipes conforming to those obtained with this machine or the like
DE2150086A1 (en) * 1971-10-07 1973-04-12 Linde Ag Radially finned tubing - made using fin blanks with holes with metal collars
FR2306031A1 (en) * 1975-04-04 1976-10-29 British Leyland Uk Ltd Radiant tube walls for motor vehicle radiators - made continuously in automatic machine which stacks and solders tubes and fins

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107598010A (en) * 2017-09-22 2018-01-19 徐州德坤电气科技有限公司 A kind of control method of air conditioner fin assembly automatic expanding guard system
CN107855430A (en) * 2017-09-22 2018-03-30 徐州德坤电气科技有限公司 A kind of fin assembly automatic expanding guard system supporting steel plate inserts the control method of unit
CN107598010B (en) * 2017-09-22 2019-02-05 徐州德坤电气科技有限公司 A kind of control method of air conditioner fin assembly automatic expanding guard system

Also Published As

Publication number Publication date
JPS5626645A (en) 1981-03-14
DE3063443D1 (en) 1983-07-07
FR2456568B1 (en) 1982-09-03
ES491400A0 (en) 1981-02-16
FR2456568A1 (en) 1980-12-12
ES8102484A1 (en) 1981-02-16
EP0020222A1 (en) 1980-12-10

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