EP0848075A1 - Device for travelling conveyors for transporting articles on support trails to a galvanizing bath - Google Patents

Device for travelling conveyors for transporting articles on support trails to a galvanizing bath Download PDF

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Publication number
EP0848075A1
EP0848075A1 EP97120253A EP97120253A EP0848075A1 EP 0848075 A1 EP0848075 A1 EP 0848075A1 EP 97120253 A EP97120253 A EP 97120253A EP 97120253 A EP97120253 A EP 97120253A EP 0848075 A1 EP0848075 A1 EP 0848075A1
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EP
European Patent Office
Prior art keywords
workpieces
lowering
zinc bath
galvanized
bath
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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.)
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EP97120253A
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German (de)
French (fr)
Inventor
Helmut Dipl.-Ing. Naujokat
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Balcke Duerr GmbH
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Balcke Duerr GmbH
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    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/003Apparatus
    • C23C2/0032Apparatus specially adapted for batch coating of substrate
    • C23C2/00322Details of mechanisms for immersing or removing substrate from molten liquid bath, e.g. basket or lifting mechanism

Definitions

  • the invention relates to a device for moving trusses for the Transport of workpieces to be galvanized on mounting rails using a Multiple chassis existing driving unit, the crossbar with each Chassis each with a lifting device for lowering the galvanized Workpieces in the zinc bath is connected.
  • the traversing devices known from practice exist from at least two parallel mounting rails, on which the Crossbeams along the processing stations of a galvanizing plant be transported.
  • the traversing devices known from practice exist from at least two parallel mounting rails, on which the Crossbeams along the processing stations of a galvanizing plant be transported.
  • the object of the invention is to avoid the floating of the workpieces to be galvanized in the zinc bath in a device for moving traverses for the transport of workpieces to be galvanized on mounting rails.
  • the solution to this problem by the invention is characterized in that the workpieces are suspended via rigid suspension devices on the underside of the cross member and that at least two lowering devices loading the ends of the cross member are arranged in the region of the galvanizing bath.
  • the lowering devices acting on the ends of the traverse cause the workpieces to be lowered below the bath surface the buoyancy caused by air in the workpieces, for example Heat exchanger tubes and tube bundles is generated.
  • the Lowering devices will press the workpieces under the Zinc bath surface causes the workpieces to be rigid Suspension devices are attached to the underside of the crossbar.
  • each lowering device is provided with a vibrating device, around the crossbar and those suspended from the underside of the crossbar Workpieces at least during the lowering of the workpieces in the Zinc bath as well as during the extraction of the workpieces from the zinc bath to undergo a shaking motion.
  • a vibrating device When immersing the workpieces in the Zinc bath makes the shaking movement easier for the liquid zinc to enter narrow gaps and voids; when pulling the workpieces out of the Zinc bath causes the vibrating device to shake off excess Zinc.
  • each Lowering device from at least one with a pivoting device connected, pivoted on a vertical post Lever arm, at its free end a pressure element for the one to be lowered Traverse is arranged.
  • a particularly good transmission of the shaking movement to the crossbeam and thus on the workpieces to be galvanized is achieved in that the advantageously designed as a rotary drive provided with an unbalance Vibration device on the arranged at the front end of the lever arm Pressure element is arranged.
  • FIG. 1 An embodiment of a traversing device according to the invention Lowering device for the traverse to be moved is shown below the accompanying drawing described in which a perspective view a traversing device according to the invention is shown schematically.
  • the traversing device shown in perspective is in essentially from a mounting rail 1, on which by means of one of several Undercarriages 2 existing driving unit trusses 3 for transporting along workpiece holders 4 hanging workpieces to be galvanized transported to the individual processing stations of a galvanizing plant can be.
  • chassis 2 arranged one behind the other have a chassis frame 5 on the top of which rollers 6 are mounted, by means of which the undercarriage 2 can be moved along the mounting rail 1.
  • a lifting device 7 for lowering the galvanizing workpieces in a - not shown - arranged zinc bath.
  • the lifting device 7 shown consists of a roller 8 on which a chain 9 can be wound up.
  • To transport the traverse 3 are on the top of the Traverse 3 support eyelets 10 are arranged, via which the traverse 3 with the chain 9 the lifting device 7 is connected.
  • a fastening profile 11 is arranged, to which the galvanizing workpieces at any distance from each other Suspension devices 12 and the workpiece holders 4 can be fixed.
  • Hanging devices 12 are rigid so that they can be attached to them attached workpieces when lowering the traverse 3 in the direction of Press the galvanizing bath under the surface of the zinc bath.
  • the lifting device 7 Since the traverse 3 with the workpieces attached to it via the chain 9 the lifting device 7 is connected, it can when lowering galvanizing hollow bodies, such as heat exchanger tubes and Pipe bundles, in the zinc bath, come in that due to the in the Workpieces contain air and due to the high viscosity of the Zinkbades the workpieces to be galvanized despite the rigid Float suspension devices 12, because of the lifting device 7 no pressure force can be exerted on the cross member 3.
  • hollow bodies such as heat exchanger tubes and Pipe bundles
  • the illustrated embodiment of the lowering devices 13 each consists of one connected to a pivoting device 14, on one vertical post 15 pivotally articulated lever arm 16, at the free end a pressure element 17 is arranged, which in the Actuation of the lowering device 13 grips the crossbar 3 and in the direction of the zinc bath.
  • Swiveling device 14 from a cylinder-piston unit, which for example, can be driven hydraulically or pneumatically.
  • each lowering device 13 is included a vibrating device 18 arranged at the front end of the lever arm 16 provided, for example as an unbalanced rotary drive is trained.
  • This is the truss 3 and the one on the underside of the truss 3 suspended workpieces with a shaking motion
  • Vibrating device 18 is used when inserting the workpieces into the zinc bath to the one hand air pockets and flux residues from the galvanized To remove workpieces and on the other hand uniform galvanizing of the To ensure workpieces.
  • the zinc solidifies when Immerse the workpieces briefly into one surrounding the workpieces Zinc block.
  • the lowering device 13 described above and the one with the Lowering device 13 connected vibrating device 18 work in operation the galvanizing plant as follows:
  • the workpieces to be galvanized are on trusses 3 by means of the trolleys 2 along a mounting rail 1 from processing station to processing station the galvanizing system.
  • the trusses 3 are over the Lowered lifting devices 7 in the direction of the zinc bath until the Immerse workpieces in the zinc bath.
  • To float the to galvanizing workpieces due to air pockets in or between to avoid the workpieces are in the area of the galvanizing bath at least two lowering devices loading the ends of the crossbar 3 13 arranged. These are provided with pressure elements 17 Lowering devices 13 press on the crossbar 3 from above and act in this way counteract buoyancy of the workpieces.
  • the floating of the workpieces is additionally prevented by the suspension devices 12 for Setting the workpieces on the cross member 3 are rigid, so that it due to the buoyancy of any relative movement between the Workpieces and the traverse 3 can come.
  • Lowering devices 13 each provided with a vibrating device 18 which the crossbar 3 and those suspended from the underside of the crossbar 3 Workpieces are subjected to a shaking movement.
  • This shaking motion the cross member 3 and the workpieces by the vibrating device 18 advantageously retained until the workpieces via the lifting device 7 have been pulled back out of the zinc bath to pass through the Shake off excess zinc from workpieces.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating With Molten Metal (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)

Abstract

An appts. for operating traverses (3) for transport of workpieces to be galvanised on support rails (1) uses a trolley unit consisting of several trolley mechanisms (2), the traverse (3) being connected to each trolley mechanism (2) via a lifting device (7) for lowering the workpiece into the Zn bath. The workpieces are suspended from rigid hanging devices (12) on the underside of the traverse (3). In the vicinity of the galvanising bath, there are at least two lowering devices (13) loading the two ends of the traverse (3).

Description

Die Erfindung betrifft eine Vorrichtung zum Verfahren von Traversen für den Transport von zu verzinkenden Werkstücken an Tragschienen mittels einer aus mehreren Fahrwerken bestehenden Fahreinheit, wobei die Traverse mit jedem Fahrwerk über jeweils eine Hubeinrichtung zum Absenken der zu verzinkenden Werkstücke in das Zinkbad verbunden ist.The invention relates to a device for moving trusses for the Transport of workpieces to be galvanized on mounting rails using a Multiple chassis existing driving unit, the crossbar with each Chassis each with a lifting device for lowering the galvanized Workpieces in the zinc bath is connected.

Die aus der Praxis bekannten Verfahrvorrichtungen für Traversen bestehen aus mindestens zwei parallelen Tragschienen, an denen aufgehängt die Traversen entlang den Bearbeitungsstationen einer Verzinkungsanlage transportiert werden. Beim Absenken der zu verzinkenden Werkstücke in das Zinkbad kann es insbesondere bei zu verzinkenden Hohlkörpern, wie beispielsweise Wärmetauscherrohren und Wärmetauscherrohrbündeln dazu kommen, daß die zu verzinkenden Werkstücke aufgrund der in den Rohren und zwischen den Rohrbündeln befindlichen Luft aufschwimmen, d. h. nicht vollständig unter die Zinkbadoberfläche gelangen, womit die Gefahr einer ungleichmäßigen Verzinkung der Werkstücke besteht. Zur Abhilfe dieses Aufschwimmens der zu verzinkenden Werkstücke werden bei den bekannten Verzinkungsanlagen die zu verzinkenden Werkstücke entweder manuell von außen unter die Zinkbadoberfläche gedrückt oder aber zusätzliche Gewichte an die zu verzinkenden Werkstücke gehängt, um so dem Auftrieb entgegenzuwirken. Diese dem Auftrieb entgegenwirkenden Maßnahmen sind jedoch zu umständlich für einen kontinuierlichen Betrieb einer Verzinkungsanlage, und es besteht darüber hinaus die Gefahr der ungleichmäßigen Verzinkung der Werkstücke an den Stellen, an denen diese von außen oder durch die Gewichte in das Zinkbad hineingedrückt bzw. hineingezogen werden.The traversing devices known from practice exist from at least two parallel mounting rails, on which the Crossbeams along the processing stations of a galvanizing plant be transported. When lowering the workpieces to be galvanized into the Zinc bath can be used in particular for hollow bodies to be galvanized, such as For example, heat exchanger tubes and heat exchanger tube bundles come that the workpieces to be galvanized due to the in the pipes and floating air between the tube bundles, d. H. Not get completely under the zinc bath surface, with the risk of there is uneven galvanizing of the workpieces. To remedy this Floating the workpieces to be galvanized are in the known Galvanizing systems workpieces to be galvanized either manually from pressed on the outside under the zinc bath surface or additional weights hung on the workpieces to be galvanized in order to increase the buoyancy counteract. These are measures to counteract the buoyancy however too cumbersome for a continuous operation Galvanizing plant, and there is also a risk of uneven galvanizing of the workpieces at the places where they pressed into the zinc bath from the outside or by the weights or be drawn in.

Davon ausgehend liegt der Erfindung die Aufgabe zugrunde, bei einer Vorrichtung zum Verfahren von Traversen für den Transport von zu verzinkenden Werkstücken an Tragschienen das Aufschwimmen der zu verzinkenden Werkstücke im Zinkbad zu vermeiden.Proceeding from this, the object of the invention is to avoid the floating of the workpieces to be galvanized in the zinc bath in a device for moving traverses for the transport of workpieces to be galvanized on mounting rails.

Die Lösung dieser Aufgabe durch die Erfindung ist dadurch gekennzeichnet, daß die Werkstücke über starre Aufhängevorrichtungen an der Unterseite der Traverse aufgehängt sind und daß im Bereich des Verzinkungsbades mindestens zwei die Enden der Traverse belastende Absenkvorrichtungen angeordnet sind.The solution to this problem by the invention is characterized in that the workpieces are suspended via rigid suspension devices on the underside of the cross member and that at least two lowering devices loading the ends of the cross member are arranged in the region of the galvanizing bath.

Die belastend auf die Enden der Traverse einwirkenden Absenkvorrichtungen bewirken ein Absenken der Werkstücke unter die Badoberfläche entgegen dem Auftrieb, der durch Luft in den Werkstücken, beispielsweise Wärmetauscherrohren und Rohrbündeln, erzeugt wird. Neben den Absenkvorrichtungen wird das Drücken der Werkstücke unter die Zinkbadoberfläche dadurch bewirkt, daß die Werkstücke über starre Aufhängevorrichtungen an der Unterseite der Traverse befestigt sind. Durch diese starre Verbindung zwischen Traverse und Werkstück wirkt die durch die Absenkvorrichtungen auf die Traverse ausgeübte Kraft auch auf die Werkstücke.The lowering devices acting on the ends of the traverse cause the workpieces to be lowered below the bath surface the buoyancy caused by air in the workpieces, for example Heat exchanger tubes and tube bundles is generated. In addition to the Lowering devices will press the workpieces under the Zinc bath surface causes the workpieces to be rigid Suspension devices are attached to the underside of the crossbar. By this rigid connection between the crossbeam and the workpiece acts through the Lowering devices exerted force on the traverse also on the Workpieces.

Um Flußmittelreste aus den Werkstücken zu entfernen und ein schnelles und gleichmäßiges Verzinken der in das Zinkbad eingetauchten Werkstücke zu ermöglichen, ist jede Absenkvorrichtung mit einer Rütteleinrichtung versehen, um die Traverse und die an der Unterseite der Traverse aufgehängten Werkstücke zumindest während des Absenkens der Werkstücke in das Zinkbad sowie während des Herausziehens der Werkstücke aus dem Zinkbad einer Rüttelbewegung zu unterziehen. Beim Eintauchen der Werkstücke in das Zinkbad erleichtert die Rüttelbewegung das Eintreten des flüssigen Zinks in enge Spalten und Hohlräume; beim Herausziehen der Werkstücke aus dem Zinkbad bewirkt die Rütteleinrichtung das Abschütteln von überschüssigem Zink. To remove flux residues from the workpieces and a quick and evenly galvanize the workpieces immersed in the zinc bath enable, each lowering device is provided with a vibrating device, around the crossbar and those suspended from the underside of the crossbar Workpieces at least during the lowering of the workpieces in the Zinc bath as well as during the extraction of the workpieces from the zinc bath to undergo a shaking motion. When immersing the workpieces in the Zinc bath makes the shaking movement easier for the liquid zinc to enter narrow gaps and voids; when pulling the workpieces out of the Zinc bath causes the vibrating device to shake off excess Zinc.

Gemäß einer bevorzugten Ausführungsform der Erfindung besteht jede Absenkvorrichtung aus mindestens einem mit einer Verschwenkeinrichtung verbundenen, an einem senkrechten Pfosten schwenkbar angelenkten Hebelarm, an dessen freiem Ende ein Andrückelement für die abzusenkende Traverse angeordnet ist.According to a preferred embodiment of the invention, each Lowering device from at least one with a pivoting device connected, pivoted on a vertical post Lever arm, at its free end a pressure element for the one to be lowered Traverse is arranged.

Die Ausbildung des mit dem Hebelarm verbundenen Schwenkantriebs als hydraulisch oder pneumatisch angetriebene Zylinder-Kolben-Einheit hat sich als besonders geeignet erwiesen, zumal insbesondere Druckluft für einen Pneumatikantrieb in den meisten Betrieben zur Verfügung steht.The formation of the swivel drive connected to the lever arm as hydraulically or pneumatically driven cylinder-piston unit has proven to be particularly suitable, especially since compressed air for one Pneumatic actuator is available in most factories.

Eine besonders gute Übertragung der Rüttelbewegung auf die Traverse und somit auf die zu verzinkenden Werkstücke wird dadurch erreicht, daß die vorteilhafterweise als mit einer Unwucht versehener Drehantrieb ausgebildete Rütteleinrichtung auf dem am vorderen Ende des Hebelarms angeordneten Andrückelement angeordnet ist.A particularly good transmission of the shaking movement to the crossbeam and thus on the workpieces to be galvanized is achieved in that the advantageously designed as a rotary drive provided with an unbalance Vibration device on the arranged at the front end of the lever arm Pressure element is arranged.

Schließlich wird mit der Erfindung vorgeschlagen, daß das am freien Ende der Absenkvorrichtung angeordnete Andrückelement als nach unten offenes U-Profil ausgebildet ist. Mit einem solchermaßen ausgebildeten Andrückelement ist es möglich, die herabzudrückende Traverse dreiseitig zu umfassen und sicher in Richtung auf das Zinkbad zu führen.Finally, it is proposed with the invention that at the free end of the Lowering device arranged as a downward open U-profile is trained. With a pressing element designed in this way it is possible to enclose the traverse to be pressed down on three sides and to lead safely towards the zinc bath.

Ein Ausführungsbeispiel einer erfindungsgemäßen Verfahreinrichtung mit Absenkvorrichtung für die zu verfahrende Traverse wird nachfolgend anhand der zugehörigen Zeichnung beschrieben, in der eine perspektivische Ansicht einer erfindungsgemäßen Verfahrvorrichtung schematisch dargestellt ist.An embodiment of a traversing device according to the invention Lowering device for the traverse to be moved is shown below the accompanying drawing described in which a perspective view a traversing device according to the invention is shown schematically.

Die ausschnittweise perspektivisch dargestellte Verfahrvorrichtung besteht im wesentlichen aus einer Tragschiene 1, an der mittels einer aus mehreren Fahrwerken 2 bestehenden Fahreinheit Traversen 3 zum Transportieren von an Werkstückaufnahmen 4 hängenden, zu verzinkenden Werkstücken entlang den einzelnen Bearbeitungsstationen einer Verzinkungsanlage transportiert werden können. The traversing device shown in perspective is in essentially from a mounting rail 1, on which by means of one of several Undercarriages 2 existing driving unit trusses 3 for transporting along workpiece holders 4 hanging workpieces to be galvanized transported to the individual processing stations of a galvanizing plant can be.

Die im dargestellten Ausführungsbeispiel auf einer gemeinsamen Tragschiene 1 hintereinander angeordneten Fahrwerke 2 weisen einen Fahrwerkrahmen 5 auf, in dessen Oberseite Laufrollen 6 gelagert sind, mittels derer das Fahrwerk 2 entlang der Tragschiene 1 verfahrbar ist. An der Unterseite des Fahrwerkrahmens 5 ist eine Hubeinrichtung 7 zum Absenken der zu verzinkenden Werkstücke in ein - nicht dargestelltes - Zinkbad angeordnet. Die dargestellte Hubeinrichtung 7 besteht aus einer Rolle 8, auf die eine Kette 9 aufwickelbar ist. Zum Transport der Traverse 3 sind auf der Oberseite der Traverse 3 Tragösen 10 angeordnet, über die die Traverse 3 mit der Kette 9 der Hubeinrichtung 7 verbunden ist.The in the illustrated embodiment on a common mounting rail 1 chassis 2 arranged one behind the other have a chassis frame 5 on the top of which rollers 6 are mounted, by means of which the undercarriage 2 can be moved along the mounting rail 1. At the bottom of the Chassis frame 5 is a lifting device 7 for lowering the galvanizing workpieces in a - not shown - arranged zinc bath. The The lifting device 7 shown consists of a roller 8 on which a chain 9 can be wound up. To transport the traverse 3 are on the top of the Traverse 3 support eyelets 10 are arranged, via which the traverse 3 with the chain 9 the lifting device 7 is connected.

Zum Festlegen der zu verzinkenden Werkstücke an der Traverse 3 ist an der Unterseite der Traverse 3 ein Befestigungsprofil 11 angeordnet, an dem die zu verzinkenden Werkstücke in einem beliebigen Abstand zueinander über Aufhängevorrichtungen 12 und die Werkstückaufnahmen 4 festlegbar sind. Die an dem Befestigungsprofil 11 der Traverse 3 festlegbaren Aufhängevorrichtungen 12 sind starr ausgebildet, damit sie die an diesen befestigten Werkstücke beim Absenken der Traverse 3 in Richtung des Verzinkungsbades unter die Zinkbadoberfläche drücken.To fix the workpieces to be galvanized on the crossbar 3 is on the Bottom of the cross member 3, a fastening profile 11 is arranged, to which the galvanizing workpieces at any distance from each other Suspension devices 12 and the workpiece holders 4 can be fixed. Which can be fixed on the fastening profile 11 of the crossmember 3 Hanging devices 12 are rigid so that they can be attached to them attached workpieces when lowering the traverse 3 in the direction of Press the galvanizing bath under the surface of the zinc bath.

Da die Traverse 3 mit den an ihr befestigten Werkstücken über die Kette 9 mit der Hubeinrichtung 7 verbunden ist, kann es beim Absenken von zu verzinkenden Hohlkörpern, wie beispielsweise Wärmetauscherrohren und Rohrbündeln, in das Zinkbad dazu kommen, daß aufgrund der in den Werkstücken enthaltenen Luft und aufgrund der hohen Viskosität des Zinkbades die zu verzinkenden Werkstücke trotz der starren Aufhängevorrichtungen 12 aufschwimmen, da über die Hubeinrichtung 7 keine Druckkraft auf die Traverse 3 ausgeübt werden kann.Since the traverse 3 with the workpieces attached to it via the chain 9 the lifting device 7 is connected, it can when lowering galvanizing hollow bodies, such as heat exchanger tubes and Pipe bundles, in the zinc bath, come in that due to the in the Workpieces contain air and due to the high viscosity of the Zinkbades the workpieces to be galvanized despite the rigid Float suspension devices 12, because of the lifting device 7 no pressure force can be exerted on the cross member 3.

Um diesem Aufschwimmen der Werkstücke entgegenwirken zu können, sind im Bereich des Verzinkungsbades mindestens zwei die Enden der Traverse 3 belastende Absenkvorrichtungen 13 angeordnet. Die in der Abbildung dargestellte Ausführungsform der Absenkvorrichtungen 13 besteht jeweils aus einem mit einer Verschwenkeinrichtung 14 verbundenen, an einem senkrechten Pfosten 15 schwenkbar angelenkten Hebelarm 16, an dessen freiem Ende ein Andrückelement 17 angeordnet ist, welches bei der Betätigung der Absenkvorrichtung 13 die Traverse 3 ergreift und in Richtung des Zinkbades drückt. Bei der dargestellten Ausführungsform besteht die Verschwenkeinrichtung 14 aus einer Zylinder-Kolben-Einheit, welche beispielsweise hydraulisch oder pneumatisch angetrieben werden kann.To counteract this floating of the workpieces, are in the area of the galvanizing bath at least two the ends of the traverse 3 loading devices 13 arranged. The one in the picture The illustrated embodiment of the lowering devices 13 each consists of one connected to a pivoting device 14, on one vertical post 15 pivotally articulated lever arm 16, at the free end a pressure element 17 is arranged, which in the Actuation of the lowering device 13 grips the crossbar 3 and in the direction of the zinc bath. In the illustrated embodiment, there is Swiveling device 14 from a cylinder-piston unit, which for example, can be driven hydraulically or pneumatically.

Wie weiterhin aus der Abbildung ersichtlich, ist jede Absenkvorrichtung 13 mit einer am vorderen Ende des Hebelarms 16 angeordneten Rütteleinrichtung 18 versehen, die beispielsweise als mit einer Unwucht versehener Drehantrieb ausgebildet ist. Diese die Traverse 3 sowie die an der Unterseite der Traverse 3 aufgehängten Werkstücke mit einer Rüttelbewegung beaufschlagende Rütteleinrichtung 18 dient beim Einführen der Werkstücke in das Zinkbad dazu, einerseits Lufteinschlüsse und Flußmittelreste aus den zu verzinkenden Werkstücken zu entfernen und andererseits eine gleichmäßige Verzinkung der Werkstücke zu gewährleisten. Da die in das Zinkbad abgesenkten Werkstücke eine niedrigere Temperatur als das Zinkbad aufweisen, erstarrt das Zink beim Eintauchen der Werkstücke kurzzeitig zu einem die Werkstücke umgebenden Zinkblock. Durch die mittels der Rütteleinrichtung 18 hervorgerufene Rüttelbewegung wird der Abschmelzprozeß dieses Zinkblockes beschleunigt, wodurch eine schnelle und gleichmäßige Verzinkung der Werkstücke gewährleistet wird. Beim Herausheben der Werkstücke aus dem Zinkbad dient die Rütteleinrichtung 18 darüber hinaus zum Entfernen überschüssigen Zinks von den Werkstücken .As can also be seen from the figure, each lowering device 13 is included a vibrating device 18 arranged at the front end of the lever arm 16 provided, for example as an unbalanced rotary drive is trained. This is the truss 3 and the one on the underside of the truss 3 suspended workpieces with a shaking motion Vibrating device 18 is used when inserting the workpieces into the zinc bath to the one hand air pockets and flux residues from the galvanized To remove workpieces and on the other hand uniform galvanizing of the To ensure workpieces. As the workpieces are lowered into the zinc bath have a lower temperature than the zinc bath, the zinc solidifies when Immerse the workpieces briefly into one surrounding the workpieces Zinc block. By the caused by the vibrating device 18 Shaking motion accelerates the melting process of this zinc block, which means that the workpieces are galvanized quickly and evenly is guaranteed. When lifting the workpieces out of the zinc bath the vibrator 18 also removes excess zinc from the workpieces.

Die voranstehend beschriebene Absenkvorrichtung 13 sowie die mit der Absenkvorrichtung 13 verbundene Rütteleinrichtung 18 arbeiten im Betrieb der Verzinkungsanlage folgendermaßen:The lowering device 13 described above and the one with the Lowering device 13 connected vibrating device 18 work in operation the galvanizing plant as follows:

Die zu verzinkenden Werkstücke werden an Traversen 3 mittels der Fahrwerke 2 entlang einer Tragschiene 1 von Bearbeitungsstation zu Bearbeitungsstation der Verzinkungsanlage verfahren.The workpieces to be galvanized are on trusses 3 by means of the trolleys 2 along a mounting rail 1 from processing station to processing station the galvanizing system.

Beim Erreichen des Verzinkungsbades werden die Traversen 3 über die Hubeinrichtungen 7 in Richtung des Zinkbades soweit herabgelassen, bis die Werkstücke in das Zinkbad eintauchen. Um ein Aufschwimmen der zu verzinkenden Werkstücke aufgrund von Lufteinschlüssen in bzw. zwischen den Werkstücken zu vermeiden, sind im Bereich des Verzinkungsbades mindestens zwei die Enden der Traverse 3 belastende Absenkvorrichtungen 13 angeordnet. Diese mit Andrückelementen 17 versehenen Absenkvorrichtungen 13 drücken von oben auf die Traverse 3 und wirken so einem Auftrieb der Werkstücke entgegen. Das Aufschwimmen der Werkstücke wird zusätzlich dadurch verhindert, daß die Aufhängevorrichtungen 12 zum Festlegen der Werkstücke an der Traverse 3 starr ausgebildet sind, so daß es aufgrund der Auftriebskraft zu keiner Relativbewegung zwischen den Werkstücken und der Traverse 3 kommen kann.When the galvanizing bath is reached, the trusses 3 are over the Lowered lifting devices 7 in the direction of the zinc bath until the Immerse workpieces in the zinc bath. To float the to galvanizing workpieces due to air pockets in or between to avoid the workpieces are in the area of the galvanizing bath at least two lowering devices loading the ends of the crossbar 3 13 arranged. These are provided with pressure elements 17 Lowering devices 13 press on the crossbar 3 from above and act in this way counteract buoyancy of the workpieces. The floating of the workpieces is additionally prevented by the suspension devices 12 for Setting the workpieces on the cross member 3 are rigid, so that it due to the buoyancy of any relative movement between the Workpieces and the traverse 3 can come.

Zur Beseitigung der Lufteinschlüsse in bzw. zwischen den Werkstücken sowie zur Vergleichmäßigung der Verzinkung der Werkstücke sind die Absenkvorrichtungen 13 jeweils mit einer Rütteleinrichtung 18 versehen, über welche die Traverse 3 und die an der Unterseite der Traverse 3 aufgehängten Werkstücke einer Rüttelbewegung unterzogen werden. Diese Rüttelbewegung der Traverse 3 sowie der Werkstücke durch die Rütteleinrichtung 18 wird vorteilhafterweise beibehalten, bis die Werkstücke über die Hubeinrichtung 7 wieder aus dem Zinkbad herausgezogen worden sind, um durch die Rüttelbewegung überschüssiges Zink von den Werkstücken abzuschütteln.To remove air pockets in or between the workpieces and to equalize the galvanizing of the workpieces are Lowering devices 13 each provided with a vibrating device 18 which the crossbar 3 and those suspended from the underside of the crossbar 3 Workpieces are subjected to a shaking movement. This shaking motion the cross member 3 and the workpieces by the vibrating device 18 advantageously retained until the workpieces via the lifting device 7 have been pulled back out of the zinc bath to pass through the Shake off excess zinc from workpieces.

Mit einer solchermaßen ausgebildeten Verfahrvorrichtung ist es somit auf einfache Weise möglich, bei einer kontinuierlichen Verzinkungsanlage einerseits das Problem des Aufschwimmens der zu verzinkenden Werkstücke in dem Zinkbad zu beseitigen und darüber hinaus eine gleichmäßige und schnelle Verzinkung der Werkstücke zu erreichen. With a traversing device designed in this way, it is therefore open easily possible with a continuous galvanizing line on the one hand the problem of floating the workpieces to be galvanized to eliminate in the zinc bath and moreover a uniform and to achieve quick galvanizing of the workpieces.

BezugszeichenlisteReference list

11
TragschieneMounting rail
22nd
Fahrwerklanding gear
33rd
Traversetraverse
44th
WerkstückaufnahmeWorkpiece holder
55
FahrwerkrahmenChassis & frame
66
LaufrolleRoller
77
HubeinrichtungLifting device
88th
Rollerole
99
KetteChain
1010th
TragöseTragose
1111
BefestigungsprofilMounting profile
1212th
AufhängevorrichtungHanger
1313
AbsenkvorrichtungLowering device
1414
VerschwenkeinrichtungSwiveling device
1515
Pfostenpost
1616
HebelarmLever arm
1717th
AndrückelementPressing element
1818th
RütteleinrichtungVibrating device

Claims (7)

Vorrichtung zum Verfahren von Traversen (3) für den Transport von zu verzinkenden Werkstücken an Tragschienen (1) mittels einer aus mehreren Fahrwerken (2) bestehenden Fahreinheit, wobei die Traverse (3) mit jedem Fahrwerk (2) über jeweils eine Hubeinrichtung (7) zum Absenken der zu verzinkenden Werkstücke in das Zinkbad verbunden ist,
dadurch gekennzeichnet,
daß die Werkstücke über starre Aufhängevorrichtungen (12) an der Unterseite der Traverse (3) aufgehängt sind und daß im Bereich des Verzinkungsbades mindestens zwei die Enden der Traverse (3) belastende Absenkvorrichtungen (13) angeordnet sind.
Device for moving traverses (3) for the transport of workpieces to be galvanized on mounting rails (1) by means of a drive unit consisting of several trolleys (2), the traverse (3) with each trolley (2) each having a lifting device (7) is connected to lower the workpieces to be galvanized into the zinc bath,
characterized by
that the workpieces are suspended via rigid suspension devices (12) on the underside of the cross member (3) and that at least two lowering devices (13) loading the ends of the cross member (3) are arranged in the area of the galvanizing bath.
Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß jede Absenkvorrichtung (13) mit einer Rütteleinrichtung (18) versehen ist, um die Traverse (3) und die an der Unterseite der Traverse (3) aufgehängten Werkstücke zumindest während des Absenkens der Werkstücke in das Zinkbad sowie während des Herausziehens der Werkstücke aus dem Zinkbad einer Rüttelbewegung zu unterziehen.Device according to claim 1, characterized in that each Lowering device (13) is provided with a vibrating device (18) the crossbar (3) and those suspended on the underside of the crossbar (3) Workpieces at least during the lowering of the workpieces in the Zinc bath and while pulling the workpieces out of the To subject the zinc bath to a shaking motion. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß jede Absenkvorrichtung (13) aus mindestens einem mit einer Verschwenkeinrichtung (14) verbundenen, an einem senkrechten Pfosten (15) schwenkbar angelenkten Hebelarm (16) besteht, an dessen freiem Ende ein Andrückelement (17) für die abzusenkende Traverse (3) angeordnet ist.Device according to claim 1 or 2, characterized in that each Lowering device (13) made of at least one with a pivoting device (14) connected to a vertical post (15) pivotally articulated lever arm (16) exists at its free end a pressure element (17) for the crossbar (3) to be lowered is. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß der mit dem Hebelarm (16) verbundene Schwenkantrieb als hydraulisch oder pneumatisch angetriebene Zylinder-Kolben-Einheit ausgebildet ist.Apparatus according to claim 3, characterized in that the with the Lever arm (16) connected swivel drive as hydraulic or pneumatically driven cylinder-piston unit is formed. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die Rütteleinrichtung (18) auf dem am vorderen Ende des Hebelarms (16) angeordneten Andrückelement (17) angeordnet ist. Apparatus according to claim 3, characterized in that the vibrating device (18) on the at the front end of the lever arm (16) arranged pressing element (17) is arranged. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die Rütteleinrichtung (18) als mit einer Unwucht versehener Drehantrieb ausgebildet ist.Apparatus according to claim 5, characterized in that the vibrating device (18) as an unbalanced rotary drive is trained. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß das Andrückelement (17) als nach unten offenes U-Profil ausgebildet ist.Apparatus according to claim 3, characterized in that the Pressing element (17) is designed as a U-profile which is open at the bottom.
EP97120253A 1996-12-11 1997-11-19 Device for travelling conveyors for transporting articles on support trails to a galvanizing bath Ceased EP0848075A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29621476U DE29621476U1 (en) 1996-12-11 1996-12-11 Device for moving traverses for the transport of workpieces to be galvanized on mounting rails
DE29621476U 1996-12-11

Publications (1)

Publication Number Publication Date
EP0848075A1 true EP0848075A1 (en) 1998-06-17

Family

ID=8033122

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Application Number Title Priority Date Filing Date
EP97120253A Ceased EP0848075A1 (en) 1996-12-11 1997-11-19 Device for travelling conveyors for transporting articles on support trails to a galvanizing bath

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Country Link
EP (1) EP0848075A1 (en)
DE (1) DE29621476U1 (en)

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WO2010085827A1 (en) * 2009-01-27 2010-08-05 Andritz Hydro Gmbh Apparatus and method for producing workpieces having a surface made of rust-proof metal
CN109706510A (en) * 2019-03-12 2019-05-03 苏州台祥机电设备有限公司 A kind of automatic transporting method of Electropolating hangers
CN110804719A (en) * 2019-11-08 2020-02-18 鑫领域智能科技(邳州)有限公司 Lifting appliance for hot galvanizing

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DE102006024776B4 (en) * 2006-05-27 2013-11-07 Sms Siemag Aktiengesellschaft Device for introducing metallic ingots into a metal bath
CN112299038B (en) * 2020-11-18 2024-06-04 中冶赛迪工程技术股份有限公司 Charging device for metal surface corrosion prevention technology

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US2661717A (en) * 1950-07-14 1953-12-08 Henry Hope & Sons Ltd Conveying means for articles to be treated in a galvanizing bath
DE1207178B (en) * 1959-01-27 1965-12-16 Wilhelm Henssler Immersion device for pressing objects such as hollow bodies into a coating bath, in particular a hot-dip galvanizing bath
US4210095A (en) * 1976-04-12 1980-07-01 Bertin & Cie Machine for draining parts emerging from hot galvanizing baths
DE3921220A1 (en) * 1989-02-07 1990-08-09 Oekologia Beteiligungs Handels METHOD FOR TREATING METAL WORKPIECES BEFORE A FIRE GALVANIZING PROCESS, AND DEVICE THEREFOR
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US5531334A (en) * 1994-12-01 1996-07-02 Forby; Robert G. Reconfigurable hook support

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010085827A1 (en) * 2009-01-27 2010-08-05 Andritz Hydro Gmbh Apparatus and method for producing workpieces having a surface made of rust-proof metal
CN109706510A (en) * 2019-03-12 2019-05-03 苏州台祥机电设备有限公司 A kind of automatic transporting method of Electropolating hangers
CN109706510B (en) * 2019-03-12 2020-10-02 苏州台祥机电设备有限公司 Automatic carrying method of electroplating hanger
CN110804719A (en) * 2019-11-08 2020-02-18 鑫领域智能科技(邳州)有限公司 Lifting appliance for hot galvanizing
CN110804719B (en) * 2019-11-08 2021-10-12 鑫领域智能科技(邳州)有限公司 Lifting appliance for hot galvanizing

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