EP0149807B1 - Automatic soldering machine for chains - Google Patents

Automatic soldering machine for chains Download PDF

Info

Publication number
EP0149807B1
EP0149807B1 EP84115646A EP84115646A EP0149807B1 EP 0149807 B1 EP0149807 B1 EP 0149807B1 EP 84115646 A EP84115646 A EP 84115646A EP 84115646 A EP84115646 A EP 84115646A EP 0149807 B1 EP0149807 B1 EP 0149807B1
Authority
EP
European Patent Office
Prior art keywords
chain
automatic soldering
carriage
soldering apparatus
jewellery
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
EP84115646A
Other languages
German (de)
French (fr)
Other versions
EP0149807A1 (en
Inventor
Friedrich Zettl
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT84115646T priority Critical patent/ATE25602T1/en
Publication of EP0149807A1 publication Critical patent/EP0149807A1/en
Application granted granted Critical
Publication of EP0149807B1 publication Critical patent/EP0149807B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21LMAKING METAL CHAINS
    • B21L3/00Making chains or chain links by bending the chain links or link parts and subsequently welding or soldering the abutting ends
    • B21L3/02Machines or devices for welding chain links
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21LMAKING METAL CHAINS
    • B21L11/00Making chains or chain links of special shape
    • B21L11/005Making ornamental chains

Definitions

  • the invention relates to an automatic soldering device for soldering jewelry chains, in particular flexible jewelry chains, with chain parts, in which the chain part to be soldered is fed to a holding pliers and the jewelry chain end link is brought to this chain part by means of pliers that can be moved by means of a carriage, whereupon the jewelry chain end link is soldered to the chain part and then the carriage moves back according to the chosen jewelry chain length, the jewelry chain is separated at the end point by means of a separating device and the resulting jewelry chain end link is fed back to the soldering point.
  • the object of the invention is to provide an automatic soldering machine which ensures the prerequisite for the soldering of such flexible chains, namely the correct grasping of the end link and its equally correct cutting. This is achieved in an automatic soldering machine of the type described (DE-A-33 02 208) by an arrangement in which the separating device is arranged next to the pliers on the slide and on the slide a sensor scanning the contour of the jewelry chain is attached, and in a slide drive for the slide is also provided which moves the slide into a predetermined end position dependent on the sensor position.
  • the chain length is therefore not always constant when using the automatic soldering machine according to the invention, but can, if the prerequisite is that the chain link is cut in the middle, fluctuate by half a chain link length.
  • the end member is now correctly grasped and the necessary and desired shape of the end member is brought about by the correct separating cut, this correctly shaped end member can now be brought up exactly and in the desired manner to the counterpart to be soldered and with it without rejects or a malfunction of the machine must be feared, be soldered. This not only results in a very satisfactory, clean soldering work, but also very high production numbers can be achieved without any disruption.
  • the pliers can simultaneously serve as a cutting edge for a cutting knife.
  • the sensor In order to be able to determine the position of the chain link to be detected as precisely as possible, the sensor should sense the contour of the chain link following the end link.
  • This sensor can be a sensor lever, in the swivel range of which an inductive or capacitive displacement sensor is inserted, or the position of which is indicated optoelectronically.
  • the feeler element of the feeler lever is expediently adapted to the chain shape to be sensed. In the case of the usual jewelry chains, it is generally sufficient to have a tracing edge which extends transversely to the chain longitudinal extension.
  • the feeler lever is expediently connected to an air-impact baffle plate, as a result of which the feeler lever is always pressed onto the chain with a constant, sufficient pressure.
  • the sensor can also be an optoelectronic scanning device, starting with simple light barriers that react to the contour of the chain with light / dark control or signal openings in the chain, to optoelectronic devices that work with laser light and can also determine the contour holographically .
  • the sensor for the optoelectronic scanning device can be a light guide brought up to the chain link adjacent to the end link.
  • a magnetic probe is also conceivable as a sensor for ferromagnetic material.
  • stepper motor As the carriage drive, in particular also when the switching device is a programmable small computer.
  • This small computer can give the stepper motor the necessary impulses for a certain chain length and then, depending on the position of the sensor, add necessary plus or minus contacts for the correct position of the pliers or the disconnecting device.
  • this chain link 1 In order to be able to cut the chain link 1 of the round link chain according to FIGS. 1, 2 correctly in the middle, as indicated by the arrow 2, this chain link 1 must be detected, as indicated by the dash-dotted lines 3.
  • a sensor shown in the drawings as a sensor lever 4, is used with a sensor link 5.
  • This sensor lever 4 is a two-armed lever mounted on a bearing block 6 which is arranged on a carriage 8 which can be displaced in the direction of the double arrow 7.
  • an inductive displacement sensor 9 In the swiveling range of this feeler lever 4 there is an inductive displacement sensor 9, which signals the respective position of the feeler lever 4 to a small computer 10.
  • Pliers 12 are also arranged on the carriage 8, as is a separating device (arrow 13).
  • the separating device 13 is in this case directly adjacent to the pliers 12.
  • a chain tensioning device 14 is shown, as well as, beyond, a holding tongs 15 and a soldering device 16.
  • the carriage 8 is displaced by means of a carriage drive 17, which gradually moves the carriage 8 as a stepping motor.
  • air nozzles 18, 19 act on the feeler lever 4, which either press the feeler lever 4 onto the chain (18) or lift it off it (19).
  • FIG. 7 shows the initial stage of the soldering process.
  • the chain part that is to be soldered to the jewelry chain 20 is inserted in the holding pliers 15.
  • the automatic soldering machine After the jewelry chain 20 has been carried out by the automatic soldering machine, it is manually soldered to this chain part in the holding pliers 15.
  • the automatic soldering machine After tensioning the chain 20 by the tensioning device 14, the automatic soldering machine is then in the position shown in FIG. 7, the feeler lever 4 being pressed onto the chain 20 by means of the air nozzle 18.
  • the immigration of the feeler lever 4 by moving the carriage 8 over the stepping motor 17 is shown in a detailed illustration in FIG. 9. It is assumed here that the feeler lever 4, as shown in the broken line, rests on the surface of the chain link 21.
  • the feeler lever 4 By moving the carriage 8 and thus simultaneously by moving the feeler lever 4 in steps 22, The feeler lever 4 gradually moves into the recess of the contour of the chain 20 until it has reached its lowest position.
  • the small computer 10 gives a pulse to the pliers 12, which then detects a link 1, 11, 21 of the chain 20 as shown in FIGS. 1 to 6.
  • the severing device 13 receives the command to sever the chain 20, as a result of which this detected chain link 1, 11, 21 is severed in the middle.
  • the holding pliers 15 open so that the fully soldered part falls out.
  • the chain link half not gripped by the pliers 12 also falls out of this chain.
  • the carriage drive 17 now receives, again via the small computer 10, the command to approach the holding tongs 15, as shown in FIG. 8.
  • the soldering device 16 is actuated so that the actual soldering process begins.
  • the carriage moves back into the position shown in FIG. 7.
  • the feeler lever 4 is lifted off the chain via the air nozzle 19.
  • the feeler lever 4 is again pressed onto the chain via the air nozzle 18, after which the process described above is repeated with the immersion of the feeler lever between the two chain links 21.
  • This pivoting movement of the feeler lever 4 is signaled here by the inductive displacement sensor 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molten Solder (AREA)
  • Electric Connection Of Electric Components To Printed Circuits (AREA)
  • Wire Processing (AREA)
  • Control Of Conveyors (AREA)

Abstract

An apparatus for automatically soldering flexible jewelry chains to certain parts such as locks or ornamental members wherein the parts to be soldered to the chain are retained by a retaining device and the chain is disposed on a carrier which is movable toward and away from the retaining device a distance corresponding to the desired length of the chain section to be soldered to the part, the carrier having a gripper for engaging a particular chain link, a chain position sensor arranged next to the gripper so as to sense the position of the link next to the link to be soldered, a control device associated with the position sensor and adapted to correct the carrier position until the correct chain link position is obtained, a cutting mechanism arranged adjacent the gripper for cutting the chain link held by the gripper, and soldering means arranged adjacent the part retaining device for soldering the cut chain link upon movement thereof in abutment with the part to which it is to be soldered.

Description

Die Erfindung betrifft einen Lötautomaten zum Verlöten von Schmuckketten, insbesondere von flexiblen Schmuckketten, mit Kettenteilen, bei dem das zu verlötende Kettenteil einer Haltezange zugeführt und das Schmuckketten-Endglied über eine mittels eines Schlittens verfahrbare Zange an dieses Kettenteil herangeführt wird, worauf das Schmuckketten-Endglied mit dem Kettenteil verlötet wird und sodann der Schlitten entsprechend der gewählten Schmuckkettenlänge zurückverfahren, am Endpunkt die Schmuckkette mittels einer Abtrenneinrichtung getrennt und das sich so ergebende Schmuckketten-Endglied wieder der Lötstelle zugeführt wird.The invention relates to an automatic soldering device for soldering jewelry chains, in particular flexible jewelry chains, with chain parts, in which the chain part to be soldered is fed to a holding pliers and the jewelry chain end link is brought to this chain part by means of pliers that can be moved by means of a carriage, whereupon the jewelry chain end link is soldered to the chain part and then the carriage moves back according to the chosen jewelry chain length, the jewelry chain is separated at the end point by means of a separating device and the resulting jewelry chain end link is fed back to the soldering point.

Die Schwierigkeit beim Verlöten derartiger Schmuckketten mit anderen Kettengliedern oder sonstigen Kettenteilen, wie Verschlußteilen, Schmuckteilen oder Schmuckstücken, besteht darin, das anzulötende Schmuckketten-Endglied zu halten und in korrekter Lage an das Gegenstück heranzubringen. Um das Endglied korrekt durch eine Zange erfassen zu können, ist jedoch bereits schon Voraussetzung, daß dieses Endglied durch einen entsprechenden Abtrennvorgang die gewünschte und notwendige Form erhält. Im allgemeinen muß hierzu ein Kettenglied exakt in der Mitte seiner Längserstreckung getrennt werden. Hat das Endglied nicht die zu seinem Erfassen notwendige Form oder werden beim Trennvorgang gar zwei Kettenglieder zertrennt, so kann entweder die Zange nicht korrekt angreifen, also das Endglied nicht korrekt zum anzulötenden Gegenstück führen, oder es entstehen unschöne, im allgemeinen nicht brauchbare Verlötungen. In beiden Fällen muß auch mit Störungen beim Produktionsvorgang gerechnet werden.The difficulty in soldering such jewelry chains with other chain links or other chain parts, such as fasteners, jewelry parts or pieces of jewelry, is to hold the jewelry chain end link to be soldered and to bring it in the correct position to the counterpart. In order to be able to grasp the end member correctly with a pair of pliers, however, it is already a prerequisite that this end member is given the desired and necessary shape by an appropriate severing operation. In general, a chain link must be separated exactly in the middle of its longitudinal extent. If the end link does not have the shape necessary to grasp it, or if two chain links are cut during the cutting process, either the pliers cannot grip correctly, i.e. the end link cannot lead correctly to the counterpart to be soldered, or unsightly, generally useless solderings occur. In both cases, disruptions in the production process must also be expected.

Zu beachten ist, daß bei Schmuckketten nicht die Zugfestigkeit im Vordergrund steht, sondern die schmückende Wirkung, die durch allerlei Verformungen der Kettenglieder erreicht wird. Diese Verformungen wirken sich jedoch negativ auf die Zugfestigkeit derartiger Ketten aus, so daß sie sich schon unter dem Einfluß verhältnismäßig geringer Zugkräfte längen beziehungsweise daß sich die Anzahl der Kettenglieder pro Längeneinheit vermindert. Die Vorgabe einer fixen Kettenlänge zum Einsetzen der Trenneinrichtung bringt daher nicht den gewünschten Erfolg, da damit keine Sicherheit gegeben ist, daß die Kette tatsächlich auch in der gewünschten Weise in der Mitte eines Gliedes zertrennt wird.It should be noted that the focus of jewelry chains is not the tensile strength, but the decorative effect that is achieved through all kinds of deformations of the chain links. However, these deformations have a negative effect on the tensile strength of such chains, so that they elongate under the influence of relatively low tensile forces or that the number of chain links per unit length decreases. The specification of a fixed chain length for inserting the separating device therefore does not bring the desired success, since there is no certainty that the chain will actually be cut in the desired manner in the middle of a link.

Voraussetzung zum korrekten Arbeiten eines derartigen Lötautomaten ist also, zum einen das korrekte Erfassen des Endgliedes, und zum anderen das darauffolgende ebenso korrekte Zertrennen der Kette, im allgemeinen in der Mitte des erfaßten Kettengliedes. Beides konnte bei den bekannten Lötautomaten nicht gewährleistet werden, bei denen es mehr oder weniger dem Zufall überlassen blieb, wo die Zange die Kette erfaßte und wo sie zertrennt wurde. Es konnten daher mit derartigen Automaten auch bisher nur steife Ketten verarbeitet werden, bei denen die Form des mit dem Gegenstück zu verlötenden Endgliedes nicht so kritisch ist, wie bei flexiblen Ketten. Flexible Ketten müssen daher noch nach wie vor unter hohen Kosten und einer großen Ausschußquote manuell gelötet werden.A prerequisite for the correct operation of such an automatic soldering machine is, on the one hand, the correct gripping of the end link, and on the other hand the subsequent, equally correct cutting of the chain, generally in the middle of the detected chain link. Neither could be guaranteed with the known automatic soldering machines, where it was more or less left to chance where the pliers gripped the chain and where it was cut. So far, it was therefore only possible to process stiff chains with such machines, in which the shape of the end link to be soldered to the counterpart is not as critical as with flexible chains. Flexible chains therefore still have to be soldered manually at high costs and with a large reject rate.

Um auch flexible Ketten in derartigen Lötautomaten bearbeiten zu können, ist es auch bekannt geworden (DE-A-33 02 208, GB-A-20 84 906 und GB-A-21 15 321), die Kette mit einigen Endgliedern an einer Zange hängend dem zu verlötenden Teil zuzuführen. Bei diesen Konstruktionen wird also nicht direkt das Endglied erfaßt und exakt dem zu verlötenden Teil zugeführt, sondern die Kette wird einige Glieder vor diesem Endglied durch die Zange gehalten und mit ihrem Ende an das anzulötende Teil geführt. Es kann bei diesen Vorrichtungen auch gar nicht das Endglied erfaßt werden, da sich ein stets gleichbleibendes Endglied nicht ergeben kann, da auch bei diesen Automaten das Zertrennen der Kette vollkommen willkürlich erfolgt und sich damit auch ein Kettenende ergibt, dessen Endkanten innerhalb der Wegstrecke eines ganzen Kettengliedes liegen können. Abgesehen von den vielen Zufälligkeiten, die sich mit dem Heranführen des flexiblen, hängenden Kettenendes an das zu verlötende Teil ergeben, können saubere Lötungen daher auch wegen der vollkommen zufälligen Gestaltung des Kettenendes nicht erreicht werden.In order to be able to also process flexible chains in such automatic soldering machines, it has also become known (DE-A-33 02 208, GB-A-20 84 906 and GB-A-21 15 321), the chain with some end links on a pair of pliers depending on the part to be soldered. In these constructions, the end link is not directly grasped and fed exactly to the part to be soldered, but the chain is held a few links in front of this end link by the pliers and the end thereof is guided to the part to be soldered. In these devices, the end link cannot be detected at all, since the end link cannot always remain the same, since the cutting of the chain also takes place completely arbitrarily in these machines and thus also results in a chain end, the end edges of which within the distance of a whole Chain link can lie. Apart from the many coincidences that arise when the flexible, hanging chain end is brought up to the part to be soldered, clean soldering cannot be achieved because of the completely random design of the chain end.

Aufgabe der Erfindung ist es, einen Lötautomaten anzugeben, der die Voraussetzung für das Verlöten auch derartiger flexibler Ketten, nämlich das korrekte Erfassen des Endgliedes und dessen ebenso korrektes Zertrennen, gewährleistet. Erreicht wird dies bei einem Lötautomaten der beschriebenen Gattung (DE-A-33 02 208) durch eine Anordnung, bei der die Abtrenneinrichtung neben der Zange auf dem Schlitten angeordnet ist und auf dem Schlitten ein die Kontur der Schmuckkette abtastender Fühler angebracht ist, und bei der weiterhin ein Schlittenantrieb für den Schlitten vorgesehen ist, der den Schlitten in eine vorbestimmte, von der Fühlerstellung abhängige Endlage verfährt.The object of the invention is to provide an automatic soldering machine which ensures the prerequisite for the soldering of such flexible chains, namely the correct grasping of the end link and its equally correct cutting. This is achieved in an automatic soldering machine of the type described (DE-A-33 02 208) by an arrangement in which the separating device is arranged next to the pliers on the slide and on the slide a sensor scanning the contour of the jewelry chain is attached, and in a slide drive for the slide is also provided which moves the slide into a predetermined end position dependent on the sensor position.

Nicht mehr also wie bei den bisher bekannten Lötautomaten dieser Art wird die Schmuckkette bei einer bestimmten Längsmarke erfaßt und zertrennt, ohne Rücksicht auf das gerade an dieser Marke befindliche Kettenglied, sondern das Erfassen und Zertrennen erfolgt abhängig von der Kontur der Kette, die wiederum durch die Ausführungsform der Kettenglieder bestimmt ist. « Kontur soll hierbei nicht nur der Ausdruck für die wellenförmigen Erhöhungen und Vertiefungen der Kette in einer zur Längserstreckung senkrechten Lage sein, sondern schließt sämtliche Konturen ein, die radial zur Längserstreckung der Kette festzustellen sind. Erst dann, wenn das Endglied mit seiner Kontur exakt unter der erfassenden Zange liegt, geht die Zange zu und erfolgt daraufhin auch ebenso exakt der Trennvorgang. Die Kettenlänge ist also bei Einsatz des erfindungsgemäßen Lötautomaten nicht stets gleichbleibend, sondern kann, wenn Voraussetzung ist, daß das Kettenglied in der Mitte zertrennt wird, um jeweils eine halbe Kettengliedlänge schwanken. Da nun aber das Endglied korrekt erfaßt wird und durch den korrekten Trennschnitt auch die notwendige und gewünschte Form des Endgliedes herbeigeführt wird, kann nun auch dieses richtig geformte Endglied exakt und in gewünschter Weise an das zu verlötende Gegenstück herangeführt und mit ihm, ohne daß Ausschuß oder eine Störung des Automaten befürchtet werden muß, verlötet werden. Dadurch ergibt sich nicht nur eine sehr zufriedenstellende, saubere Lötarbeit, sondern es lassen sich auch sehr hohe Produktionszahlen ohne jegliche Störung erreichen.No longer, as with the previously known automatic soldering machines of this type, the jewelry chain is grasped and cut at a certain longitudinal mark, regardless of the chain link currently located at this mark, but the gripping and cutting takes place depending on the contour of the chain, which in turn is caused by the Embodiment of the chain links is determined. «Contour should not only be the expression for the wave-like elevations and depressions of the chain in a position perpendicular to the longitudinal extent, but also includes all contours that can be determined radially to the longitudinal extent of the chain. The pliers only close when the contour of the end member lies exactly under the gripping pliers and then the separation process is carried out just as precisely. The chain length is therefore not always constant when using the automatic soldering machine according to the invention, but can, if the prerequisite is that the chain link is cut in the middle, fluctuate by half a chain link length. However, since the end member is now correctly grasped and the necessary and desired shape of the end member is brought about by the correct separating cut, this correctly shaped end member can now be brought up exactly and in the desired manner to the counterpart to be soldered and with it without rejects or a malfunction of the machine must be feared, be soldered. This not only results in a very satisfactory, clean soldering work, but also very high production numbers can be achieved without any disruption.

Wird die Abtrenneinrichtung unmittelbar neben der Zange angeordnet, kann die Zange gleichzeitig als Schneidkante für ein abtrennendes Schneidmesser dienen.If the cutting device is arranged directly next to the pliers, the pliers can simultaneously serve as a cutting edge for a cutting knife.

Um möglichst exakt die Lage des zu erfassenden Kettengliedes bestimmen zu können, soll der Fühler die Kontur des auf das Endglied folgenden Kettengliedes erfühlen. Dieser Fühler kann ein Fühlhebel sein, in dessen Schwenkbereich ein induktiver oder kapazitiver Wegaufnehmer eingefügt, oder dessen Stellung optoelektronisch angezeigt ist. Hierbei wird zweckmäßigerweise das Tastglied des Fühlhebels der abzutastenden Kettenform angepaßt. Bei den üblichen Schmuckketten genügt im allgemeinen eine quer zur Kettenlängserstreckung verlaufende Tastkante. Um diese Tastkante beziehungsweise das Tastglied nicht zu sehr abzunutzen und auch um die Ketten nicht zu beschädigen, wird zweckmäßigerweise der Fühlhebel mit einer luftbeaufschlagten Prallplatte verbunden, wodurch der Fühlhebel stets mit einem gleichbleibenden, ausreichenden Druck auf die Kette aufgepreßt wird.In order to be able to determine the position of the chain link to be detected as precisely as possible, the sensor should sense the contour of the chain link following the end link. This sensor can be a sensor lever, in the swivel range of which an inductive or capacitive displacement sensor is inserted, or the position of which is indicated optoelectronically. In this case, the feeler element of the feeler lever is expediently adapted to the chain shape to be sensed. In the case of the usual jewelry chains, it is generally sufficient to have a tracing edge which extends transversely to the chain longitudinal extension. In order not to wear this sensing edge or the sensing element too much and also not to damage the chains, the feeler lever is expediently connected to an air-impact baffle plate, as a result of which the feeler lever is always pressed onto the chain with a constant, sufficient pressure.

Der Fühler kann auch eine optoelektronische Abtasteinrichtung sein, angefangen von einfachen Lichtschranken, die mit Hell/Dunkel-Steuerung auf die Kontur der Kette reagieren oder Öffnungen in der Kette signalisieren, bis zu mit Laserlicht arbeitenden optoelektronischen Einrichtungen, die durchaus auch holografisch die Kontur bestimmen können. Hierbei kann der Aufnehmer für die optoelektronische Abtasteinrichtung ein an das dem Endglied benachbarte Kettenglied herangeführter Lichtleiter sein. Als Fühler ist bei ferromagnetischem Material auch eine Magnetsonde denkbar.The sensor can also be an optoelectronic scanning device, starting with simple light barriers that react to the contour of the chain with light / dark control or signal openings in the chain, to optoelectronic devices that work with laser light and can also determine the contour holographically . Here, the sensor for the optoelectronic scanning device can be a light guide brought up to the chain link adjacent to the end link. A magnetic probe is also conceivable as a sensor for ferromagnetic material.

Um den Schlitten in gewünschter Weise verfahren zu können, empfiehlt es sich als Schlittenantrieb einen Schrittmotor einzusetzen, insbesondere auch dann, wenn die Schaltvorrichtung ein pogrammierbarer Kleinrechner ist. Dieser Kleinrechner kann dem Schrittmotor die notwendigen Impulse für eine bestimmte Kettenlänge vorgeben und dann, je nach Stellung des Fühlers, notwendige Plus- oder Minus-Kontakte zur korrekten Lage der Zange beziehungsweise der Abtrenneinrichtung hinzufügen.In order to be able to move the carriage in the desired manner, it is advisable to use a stepper motor as the carriage drive, in particular also when the switching device is a programmable small computer. This small computer can give the stepper motor the necessary impulses for a certain chain length and then, depending on the position of the sensor, add necessary plus or minus contacts for the correct position of the pliers or the disconnecting device.

Auf der Zeichnung ist ein Ausführungsbeispiel eines derartigen Lötautomaten schematisch, zusammen mit einigen Kettenformen dargestellt, und zwar zeigen :

  • Figur 1 und Figur 2 eine einfache Rundgliederkette,
  • Figur 3 und Figur 4 eine « Panzer »-Kette,
  • Figur 5 und Figur 6 eine Spezial-Schmuckkette,
  • Figur 7 und Figur 8 Ansichten des Lötautomaten,
  • Figur 9 die Detailansicht beim Tastglied eines Fühlhebels und
  • Figur 10 das Steuerschema des Lötautomaten.
In the drawing, an embodiment of such an automatic soldering machine is shown schematically, together with some chain shapes, namely:
  • FIG. 1 and FIG. 2 a simple round link chain,
  • 3 and FIG. 4 a “tank” chain,
  • FIG. 5 and FIG. 6 a special jewelry chain,
  • FIG. 7 and FIG. 8 views of the automatic soldering machine,
  • Figure 9 shows the detailed view of the feeler of a feeler and
  • Figure 10 shows the control scheme of the automatic soldering machine.

Um das Kettenglied 1 der Rundgliederkette nach den Fig. 1, 2 korrekt in der Mitte, wie durch den Pfeil 2 angedeutet, zertrennen zu können, muß dieses Kettenglied 1, wie durch die strichpunktierten Linien 3 angedeutet, erfaßt werden. Gleiches gilt für die Kettenglieder 11 der Fig. 3 und 4, wie auch für diejenigen 21 nach den Fig. 5 und 6. Hierzu dient ein Fühler, in den Zeichnungen dargestellt als Fühlhebel 4, mit Tastglied 5. Dieser Fühlhebel 4 ist als zweiarmiger Hebel an einem Lagerbock 6 gelagert, der auf einem, in Richtung des Doppelpfeils 7 verschiebbaren Schlitten 8 angeordnet ist. Im Schwenkbereich dieses Fühlhebels 4 befindet sich ein induktiver Wegaufnehmer 9, der die jeweilige Stellung des Fühlhebels 4 einem Kleinrechner 10 signalisiert. Ebenfalls auf dem Schlitten 8 angeordnet ist eine Zange 12, wie auch eine Abtrenneinrichtung (Pfeil 13). Die Abtrenneinrichtung 13 ist hierbei der Zange 12 unmittelbar benachbart. In Kettenlängsrichtung neben dem Schlitten 8 ist eingezeichnet eine Ketten-Spannvorrichtung 14, wie auch, jenseits, eine Haltezange 15 und eine Lötvorrichtung 16. Verschoben wird der Schlitten 8 mittels eines Schlittenantriebes 17, der als Schrittmotor schrittweise den Schlitten 8 verschiebt. Auf den Fühlhebel 4 wirken schließlich noch Luftdüsen 18, 19 ein, die entweder den Fühlhebel 4 auf die Kette aufdrücken (18) oder von ihr abheben (19).In order to be able to cut the chain link 1 of the round link chain according to FIGS. 1, 2 correctly in the middle, as indicated by the arrow 2, this chain link 1 must be detected, as indicated by the dash-dotted lines 3. The same applies to the chain links 11 of FIGS. 3 and 4, as well as for those 21 according to FIGS. 5 and 6. For this purpose, a sensor, shown in the drawings as a sensor lever 4, is used with a sensor link 5. This sensor lever 4 is a two-armed lever mounted on a bearing block 6 which is arranged on a carriage 8 which can be displaced in the direction of the double arrow 7. In the swiveling range of this feeler lever 4 there is an inductive displacement sensor 9, which signals the respective position of the feeler lever 4 to a small computer 10. Pliers 12 are also arranged on the carriage 8, as is a separating device (arrow 13). The separating device 13 is in this case directly adjacent to the pliers 12. In the chain longitudinal direction next to the carriage 8, a chain tensioning device 14 is shown, as well as, beyond, a holding tongs 15 and a soldering device 16. The carriage 8 is displaced by means of a carriage drive 17, which gradually moves the carriage 8 as a stepping motor. Finally, air nozzles 18, 19 act on the feeler lever 4, which either press the feeler lever 4 onto the chain (18) or lift it off it (19).

In Fig. 7 ist das Anfangsstadium des Verlötvorganges dargestellt. In der Haltezange 15 ist das Kettenteil, das an die Schmuckkette 20 angelötet werden soll, eingefügt. Nach Durchführung der Schmuckkette 20 durch den Lötautomaten wird sie an dieses Kettenteil in der Haltezange 15 manuell angelötet. Nach Spannen der Kette 20 durch die Spannvorrichtung 14 befindet sich dann der Lötautomat in der in Fig. 7 gezeigten Stellung, wobei der Fühlhebel 4 auf die Kette 20 mittels der Luftdüse 18 aufgedrückt wird. Das Einwandern des Fühlhebels 4 durch Verschieben des Schlittens 8 über den Schrittmotor 17 zeigt Fig. 9 in einer Detaildarstellung. Es sei hierbei angenommen, daß der Fühlhebel 4, wie in der gestrichelten Darstellung gezeigt, auf der Fläche des Kettengliedes 21 aufliegt. Durch Verschieben des Schlittens 8 und damit gleichzeitig durch Verschieben des Fühlhebels 4 in Schritten 22, wandert der Fühlhebel 4 nach und nach in die Vertiefung der Kontur der Kette 20 ein, bis er seine tiefste Lage erreicht hat. In dieser tiefsten Lage, die zuvor beim Einrichten des Lötautomaten festgelegt wird, gibt der Kleinrechner 10 einen Impuls an die Zange 12, die daraufhin ein Glied 1, 11, 21 der Kette 20 so erfaßt, wie in den Fig. 1 bis 6 dargestellt. Unmittelbar danach erhält die Abtrenneinrichtung 13 den Befehl zum Zertrennen der Kette 20, wodurch nunmehr dieses erfaßte Kettenglied 1, 11, 21 in der Mitte zertrennt wird. Gleichzeitig öffnet sich die Haltezange 15, so daß das fertig gelötete Teil herausfällt. Gleichzeitig fällt damit auch die durch die Zange 12 nicht erfaßte Kettengliedhälfte aus dieser Kette heraus. Nun erhält der Schlittenantrieb 17, wiederum über den Kleinrechner 10, den Befehl zum Heranfahren an die Haltezange 15, wie dies in Fig. 8 dargestellt ist. Gleichzeitig wird auch die Löteinrichtung 16 betätigt, so daß der eigentliche Lötvorgang beginnt. Nach Beendigung dieses Vorganges fährt der Schlitten wieder in die in Fig. 7 gezeigte Lage. Beim Zurückfahren des Schlittens 8 wird der Fühlhebel 4 über die Luftdüse 19 von der Kette abgehoben. Nachdem eine vorbestimmte Länge erreicht ist, wird der Fühlhebel 4 wiederum über die Luftdüse 18 auf die Kette aufgedrückt, wonach sich der oben geschilderte Vorgang mit dem Einwandern des Fühlhebels zwischen die beiden Kettenglieder 21 wiederholt. Diese Verschwenkbewegung des Fühlhebels 4 wird hierbei über den induktiven Wegaufnehmer 9 signalisiert.7 shows the initial stage of the soldering process. The chain part that is to be soldered to the jewelry chain 20 is inserted in the holding pliers 15. After the jewelry chain 20 has been carried out by the automatic soldering machine, it is manually soldered to this chain part in the holding pliers 15. After tensioning the chain 20 by the tensioning device 14, the automatic soldering machine is then in the position shown in FIG. 7, the feeler lever 4 being pressed onto the chain 20 by means of the air nozzle 18. The immigration of the feeler lever 4 by moving the carriage 8 over the stepping motor 17 is shown in a detailed illustration in FIG. 9. It is assumed here that the feeler lever 4, as shown in the broken line, rests on the surface of the chain link 21. By moving the carriage 8 and thus simultaneously by moving the feeler lever 4 in steps 22, The feeler lever 4 gradually moves into the recess of the contour of the chain 20 until it has reached its lowest position. In this lowest position, which is previously defined when setting up the automatic soldering machine, the small computer 10 gives a pulse to the pliers 12, which then detects a link 1, 11, 21 of the chain 20 as shown in FIGS. 1 to 6. Immediately afterwards, the severing device 13 receives the command to sever the chain 20, as a result of which this detected chain link 1, 11, 21 is severed in the middle. At the same time, the holding pliers 15 open so that the fully soldered part falls out. At the same time, the chain link half not gripped by the pliers 12 also falls out of this chain. The carriage drive 17 now receives, again via the small computer 10, the command to approach the holding tongs 15, as shown in FIG. 8. At the same time the soldering device 16 is actuated so that the actual soldering process begins. After completion of this process, the carriage moves back into the position shown in FIG. 7. When the carriage 8 moves back, the feeler lever 4 is lifted off the chain via the air nozzle 19. After a predetermined length is reached, the feeler lever 4 is again pressed onto the chain via the air nozzle 18, after which the process described above is repeated with the immersion of the feeler lever between the two chain links 21. This pivoting movement of the feeler lever 4 is signaled here by the inductive displacement sensor 9.

Claims (11)

1. An automatic soldering apparatus for soldering jewellery chains (20), in particular flexible jewellery chains with chain links, wherein the chain link to be soldered is fed to a holding tongs device (15) and the end member (1, 11, 21) of the jewellery chain is brought up to said chain link by way of a tongs device (12) which is displaceable by means of a carriage (8), whereupon the end member (1, 11, 21) of the jewellery chain is soldered to the chain link and then the carriage (8) is returned in accordance with the selected length of the jewellery chain, the jewellery chain (20) is cut at the end point by a severing means (13) and the resulting jewellery chain end member (1, 11, 21) is again fed to the soldering location, characterised by an arrangement in which the severing means (13) is arranged beside the tongs device (12) on the carriage (8) and mounted on the carriage (8) is a sensor (sensing lever 4) for sensing the contour of the jewellery chain (30) and in which moreover there is provided a carriage drive means (17) for the carriage (8), which displaces the carriage (8) into a predetermined end position which is dependent on the position of the sensor.
2. An automatic soldering apparatus according to claim 1 characterising in that the tongs device (12) serves as a cutting edge for a severing cutting blade.
3. An automatic soldering apparatus according to claim 1 characterised in that the sensor (sensing lever 4) senses the contour of the chain link following the jewellery chain end member (1, 11, 21).
4. An automatic soldering apparatus according to one or more of the preceding claims characterised in that the sensor is a sensing lever (4), an inductive or capacitive travel pick-up being disposed in the range of pivotal movement thereof or the position thereof being displayed by optical-electronic means.
5. An automatic soldering apparatus according to claim 4 characterised in that the sensing lever (4) is connected to a baffle plate which is acted upon by air.
6. An automatic soldering apparatus according to claim 1 or claim 3 characterised in that the sensor is an optical-electronic sensing means.
7. An automatic soldering apparatus according to claim 6 characterised in that the pick-up means for the optical-electronic sensing means is a light conductor which is taken up to the chain link which is adjacent to the jewellery chain end member (1, 11, 21).
8. An automatic soldering apparatus according to claim 6 or claim 7 characterised in that the light source of the optical-electronic sensing means is laser light.
9. An automatic soldering apparatus according to claim 1 or claim 3 characterised in that the sensor is a magnetic probe.
10. An automatic soldering apparatus according to claim 1 characterised in that the carriage drive means (17) is a stepping motor.
EP84115646A 1983-12-27 1984-12-17 Automatic soldering machine for chains Expired EP0149807B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84115646T ATE25602T1 (en) 1983-12-27 1984-12-17 AUTOMATIC CHAIN SOLDERING.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3347139A DE3347139C1 (en) 1983-12-27 1983-12-27 Chain soldering machine
DE3347139 1983-12-27

Publications (2)

Publication Number Publication Date
EP0149807A1 EP0149807A1 (en) 1985-07-31
EP0149807B1 true EP0149807B1 (en) 1987-03-04

Family

ID=6218193

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84115646A Expired EP0149807B1 (en) 1983-12-27 1984-12-17 Automatic soldering machine for chains

Country Status (6)

Country Link
US (1) US4569472A (en)
EP (1) EP0149807B1 (en)
JP (1) JPS60158974A (en)
KR (1) KR910007129B1 (en)
AT (1) ATE25602T1 (en)
DE (1) DE3347139C1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1202126B (en) * 1985-12-24 1989-02-02 Ferdinando Grotto MACHINE SUITABLE FOR WELDING AN ORNAMENTAL CHAIN WITH CROSSED RINGS TYPE TWO PRINCIPLES WITH SIMULTANEOUS WELDING RIGHT AND LEFT AND WITH RECOVERY OF SOULS IN WIRE OF THE PRINCIPLES OF THE CHAIN
US4769884A (en) * 1986-12-02 1988-09-13 Philip Datseris Robotic apparatus for automatically assembling chains
JPH07115167B2 (en) * 1991-04-05 1995-12-13 景介 戸田 Brazing furnace for chain ring
US5115959A (en) * 1991-05-01 1992-05-26 Ar-Gov, Inc. Soldering machine for rope chain
CN1062492C (en) * 1996-12-30 2001-02-28 韦士平 Process for reclaiming waste catalyst with low palladium content
CN1327988C (en) * 2005-04-05 2007-07-25 潘国基 Mechanized manufacturing equipment for dog chain
US9055793B2 (en) 2012-06-08 2015-06-16 Anne Jansen Shotgun shell jewelry and method therefor
CN103358072B (en) * 2013-06-28 2015-05-13 江苏亚星锚链股份有限公司 Automatic welding stud servo positioning mechanism
CN103639628B (en) * 2013-11-29 2015-06-03 安徽绩溪徽山链传动有限公司 Automatic welding machine for chains
CN104226887B (en) * 2014-09-24 2017-01-25 太仓椿盟链传动有限公司 Cutting material guide control system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1583322A (en) * 1923-05-09 1926-05-04 Hattie C Smith Chain and crosstie link assembling machine
DE483924C (en) * 1928-02-04 1929-10-07 Max Marquardt Device for the production of bar link chains
US3480194A (en) * 1967-09-18 1969-11-25 Taylor Winfield Corp Strip edge detection for machine function initiating device
IT1029689B (en) * 1974-02-25 1979-03-20 Meyer Roth Pastor Maschf PROCEDURE FOR THE CONTINUOUS WELDING OF SUBSEQUENT CHAIN RINGS AND DEVICE FOR THE IMPLEMENTATION OF THIS PROCEDURE
IT1073672B (en) * 1976-08-20 1985-04-17 Gori & Zucchi Spa MACHINE AND METHOD FOR THE MANUFACTURE OF A CHAIN WITH AUTOMATICALLY SHAPED AND WELDED LINKS
FR2460752A1 (en) * 1979-07-12 1981-01-30 Adepa Cutting or welding tool movement control system - utilises position data points from detector in front of tool
IT1218703B (en) * 1980-10-03 1990-04-19 Silverio Cerato AUTOMATIC MACHINE FOR CHAINING THE CHAIN, ASSEMBLING THE MARKED LINK AND WELDING THE FINAL LINKS OF ORNAMENTAL CHAINS
IT1159767B (en) * 1982-01-26 1987-03-04 Oromeccanica Spa L AUTOMATIC MACHINE FOR THE WELDING OF THE FINAL LINKS AND THE LINKED LINK IN THE CHAINS FOR ORNAMENTAL USE
IT1192468B (en) * 1982-07-07 1988-04-13 I C M Spa Italiana Costruzioni MACHINE TO PRODUCE ORNAMENTAL CHAINS COMPOSED OF LINKS OF DIFFERENT SHAPES AND / OR DIMENSIONS AND ARRANGED ACCORDING TO ANY PROGRAMMABLE SEQUENCE

Also Published As

Publication number Publication date
JPS60158974A (en) 1985-08-20
KR850004913A (en) 1985-08-19
US4569472A (en) 1986-02-11
ATE25602T1 (en) 1987-03-15
EP0149807A1 (en) 1985-07-31
DE3347139C1 (en) 1985-08-01
KR910007129B1 (en) 1991-09-18

Similar Documents

Publication Publication Date Title
DE2822476C2 (en) Device for cutting elongated profile material, in particular pipe material
EP0149807B1 (en) Automatic soldering machine for chains
DE2531844C3 (en) Device for cutting through and stripping a stranded conductor
DE2250461B2 (en) Process for the continuous production of electrical contacts and device for carrying out the process
DE3312233C1 (en) Punching machine and notching machine
DE2851156A1 (en) SAFETY DEVICE FOR A PRESS OR DGL.
DE2643106C2 (en) Sewing device for automatically sewing opposite edges of a piece of fabric
DE2637085B2 (en) Device for ejecting the punched waste or punched part by means of compressed air
DE3018446A1 (en) Salami or cheese slicing system - uses pusher shifting food bulk in quick travel against blade, while claws enter bulk rear end
EP0563531B1 (en) Method and device for performing a peeling or tearing test on a welded plate
DE2855138C2 (en) Device for cutting off a retaining strap
DE1935451C2 (en) Device for separating and inserting bolt-shaped blanks on a processing machine
DE102020115036A1 (en) Welding device and method for welding an outlet element to a packaging material
DE2939899C2 (en) Method and device for opening fiber bales
DE2950968C2 (en) Device for the automatic production of strand roof tiles and the like from a strand of clay
EP0584602A1 (en) Method and apparatus for optimizing the idle stroke of the clamping bar of a cutting machine
DE2462790C2 (en) Device for equipping carrier parts with contact metal
DE2502268B2 (en) DEVICE FOR WELDING WIRE TO A CARRIER MATERIAL
EP0123065A2 (en) Sawing machine for cutting pieces from a profil
DE4122235C2 (en)
DE601631C (en) Device for manufacturing box parts
DE19732955C1 (en) Pick-up unit for wires in a grid welding machine
DE210330C (en)
DE1454977C (en) Device for punching out preformed objects with a central passage opening
DE675851C (en) Filing machine with a file that can be moved back and forth

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19850619

17Q First examination report despatched

Effective date: 19860708

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 25602

Country of ref document: AT

Date of ref document: 19870315

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19901210

Year of fee payment: 7

Ref country code: GB

Payment date: 19901210

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19901214

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19901227

Year of fee payment: 7

Ref country code: BE

Payment date: 19901227

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19901228

Year of fee payment: 7

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19901231

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19911217

Ref country code: AT

Effective date: 19911217

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19911218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19911231

Ref country code: CH

Effective date: 19911231

Ref country code: BE

Effective date: 19911231

BERE Be: lapsed

Owner name: ZETTL FRIEDRICH

Effective date: 19911231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19920701

GBPC Gb: european patent ceased through non-payment of renewal fee
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19920831

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 84115646.6

Effective date: 19920704