EP3424618A1 - Sliding closure for a vessel containing molten metal - Google Patents

Sliding closure for a vessel containing molten metal Download PDF

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Publication number
EP3424618A1
EP3424618A1 EP17179692.3A EP17179692A EP3424618A1 EP 3424618 A1 EP3424618 A1 EP 3424618A1 EP 17179692 A EP17179692 A EP 17179692A EP 3424618 A1 EP3424618 A1 EP 3424618A1
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EP
European Patent Office
Prior art keywords
linear drive
drive
holder
rod
hydraulic cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP17179692.3A
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German (de)
French (fr)
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EP3424618B1 (en
Inventor
Damian SCHACHER
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.)
Refractory Intellectual Property GmbH and Co KG
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Refractory Intellectual Property GmbH and Co KG
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Application filed by Refractory Intellectual Property GmbH and Co KG filed Critical Refractory Intellectual Property GmbH and Co KG
Priority to EP17179692.3A priority Critical patent/EP3424618B1/en
Priority to RU2019143836A priority patent/RU2766944C2/en
Priority to PCT/EP2018/064453 priority patent/WO2019007597A1/en
Priority to BR112019025043-3A priority patent/BR112019025043B1/en
Priority to US16/616,799 priority patent/US11192180B2/en
Priority to JP2019568692A priority patent/JP7177795B2/en
Priority to CN201880036150.4A priority patent/CN110662616B/en
Priority to KR1020197035022A priority patent/KR102543316B1/en
Publication of EP3424618A1 publication Critical patent/EP3424618A1/en
Priority to ZA2019/07930A priority patent/ZA201907930B/en
Publication of EP3424618B1 publication Critical patent/EP3424618B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/38—Means for operating the sliding gate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor

Definitions

  • the invention relates to a sliding closure for a vessel containing molten metal according to the preamble of claim 1.
  • a generic sliding closure is in the document EP 0 875 320 B1 is disclosed, which serves to regulate the pouring out of the vessel during casting by being opened, closed or controlled throttled by moving the slide unit by means of a linear drive via the openings of the mutually braced refractory closure plates. Therefore, first the push rod of the Slider unit to be coupled to the drive rod of the linear drive. This is done automatically by means of the linear drive, by its drive rod is moved against the push rod of the slide unit. After casting, the linear drive is usually withdrawn from the holder receiving it and remains on the casting platform, while the empty vessel is brought to a pan or the like for maintenance. The linear drive is inserted laterally into a guide groove of the latter for easier assembly in the holder, in which it is held largely positive fit during the casting process.
  • the invention has for its object to improve a sliding closure of the type mentioned in such a way that with him an automated assembly and disassembly of his linear drive before and after the casting is possible.
  • the linear drive is formed by a hydraulic cylinder which is provided with a main piston driving the drive rod and an auxiliary piston movable independently of this for actuating the locking device.
  • the invention provides that the additional piston is provided with a locking head guided on the drive rod, which moves out of the interior of the hydraulic cylinder on the front side when the additional piston is acted upon in the locking direction and positively and / or non-positively into a correspondingly shaped recess in the Holder penetrates while it is removed upon actuation of the additional piston in the unlocking from the recess in the holder and moves back into the interior of the hydraulic cylinder.
  • a particularly suitable linear drive according to the invention is characterized in that it is designed to be multifunctional by the locking of the linear drive in the holder, the coupling of its drive rod to the push rod of the slide unit and the displacement of the slide unit during the casting process for controlling the outflow of the Molten metal from the vessel accomplished.
  • the hydraulic cylinder in such a way that its interior by the main piston and the additional piston in three independently Pressure chambers is subdivided, wherein the hydraulic cylinder is locked upon application of the middle chamber and the drive rod is coupled upon application of the rear chamber with the push rod of the slide unit or is displaced upon application of the middle chamber for regulating the casting process, during the hydraulic cylinder upon application the front chamber is unlocked.
  • the hydraulic cylinder so that it is provided between the two pistons with a serving as a stop for the additional piston partition with an opening for free passage of the drive rod.
  • Fig. 1 to Fig. 3 show a holder 5 of an indicated slide housing 1 and a recordable in this linear actuator 6 for a sliding closure, which has the slide housing 1 and a longitudinally guided in this via a push rod 2 slide unit.
  • the linear drive 6 is usually installed only in the holder of the sliding closure, after the particular intended as a pan vessel is placed on the casting platform of a continuous casting filled with molten metal. This is advantageously done with a robot manipulator not shown in detail, which can be coupled with a coupling piece 10 'of the linear drive 6 and thereby inserts the linear drive 6 with its flange 20 laterally into a recess of the holder 5.
  • the sliding closure according to the invention is equipped with an operable with the linear drive 6 and cooperating with the holder 5 locking device 7.
  • This locking device 7 After the insertion of the linear drive 6 in the holder 5 advantageously with the Roboteremanipulator a secure fixation of the same achieved or when removing the linear drive, this is solved again, bringing the linear drive after insertion into the holder in this fixable or before the removal of the same is unlocked again.
  • This locking device 7 has a preferably cylindrical locking head 8, which is positively inserted in the locked state in a likewise cylindrical recess 9 of the holder 5.
  • this locking head 8 is removable upon actuation of the additional piston 12 of the locking device 7 in the unlocking of the recess 9.
  • the linear drive 6 operating according to the invention comprises a hydraulic cylinder 10 with two independently movable pistons 11 and 12, the main piston 11 serving to actuate the drive rod 4, while the auxiliary piston 12 is used to actuate the locking device 7.
  • the locking head 8 is tightly guided on the drive rod 4 and relative to it by the auxiliary piston 12 slidably.
  • the hydraulic cylinder 10 which is provided with a central opening 14 through which the drive rod 4 protrudes.
  • This push rod 2 is connected via a coupling 3 with the drive rod 4 of the linear drive 6, wherein the coupling 3 automatically couples by moving the drive rod 4 of the linear drive against the push rod 2 of the slide unit. It is provided with a coupling part end to the push rod 2 and a coupling part at the front end of the drive rod 4 of the linear drive 6, which couple when moving the drive rod 4, while this clutch 3 when removing the linear drive 6 from the holder 5 transversely to the direction of displacement of the drive rod 4 automatically disengaged.
  • the automatically operating clutch 3 is designed as a dog clutch, the spring-loaded jaw members 16 are spread when advancing the drive rod 4 via the coupling head 17 of the push rod 2 to the outside, they snap by the spring force and the coupling head 17 of the push rod 2 engage around a form fit, as in Fig. 3 shown.
  • the also automatic disengagement is done by pulling out the linear drive 6 side by the two claw elements 16 slide in the snapped state transverse to the longitudinal extension of the push rod 2 on the coupling head 17 until they are laterally detached from it.
  • Fig. 4a to Fig. 4f the operation of the linear actuator 6 is illustrated.
  • the interior of the hydraulic cylinder 10 is divided by two pistons 11 and 12 in three independently acted upon chambers 15a, 15b, 15c, the inlets with corresponding arrows 15, 15 ', 15 "are indicated, in white at beaufschlagter and black at not
  • the central opening 14 in the partition wall 13 allows the free passage of a medium from the chamber 15b into this chamber 15b 'between this partition 13 and the piston 12.
  • Fig. 4b shows the hydraulic cylinder 10 when installed in the holder 5 of the housing with retracted piston 12 and locking head. 8
  • Fig. 4c When the middle chamber 15b is acted on, the hydraulic cylinder 10 is locked to the holder 5 and the drive rod 4 is coupled to the push rod 2 of the slide unit upon application of the rear chamber 15a facing away from this drive rod ( Fig.4d ).
  • the acted chamber 15b is indicated by the arrow 15 'in white or the other two arrows 15, 15 "in uninvited chambers 15a, 15c in black, as in Fig. 4c is apparent.
  • the slide unit When the chambers 15a or 15b are acted upon, the slide unit is activated during casting, and thus an opening or closing or throttling of the sliding closure is effected ( Fig. 4d or. Fig. 4e ). This is indicated in each case by the white arrow 15 or 15 '. In the chamber 15b, such a pressure is maintained that the locking head 8 is always pressed into the recess 9 of the holder 5.
  • the locking head 8 could be pressed into the recess 9 of the holder 5 such that a frictional connection between this and the holder 5 would be achieved.
  • Fig. 4f shows the unlocking of the locking head 8, in which the front chamber 15c in the hydraulic cylinder 10 is subjected to the media pressure, as shown by the white arrow 15 "Once this unlocking is done, the linear actuator 6 can be pulled out laterally, in which the clutch 3 is solved automatically.
  • the inventive locking device 7 is suitable both for so-called two-plate gate valve with a fixed and a movable slide plate and for so-called three-plate slide with two fixed slide plates and a sliding between these slide plate.
  • the coupling could be vice versa provided with the jaw members on the push rod of the slide unit, while the other coupling part with the flange-like design on the drive rod of the linear drive.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Actuator (AREA)

Abstract

Ein Schiebeverschluss für ein Metallschmelze enthaltendes Gefäss ist mit einem Schiebergehäuse (1), einer darin längsgeführten Schiebereinheit mit einer Schubstange (2), einer Halterung (5) sowie mit einem in letzterer wegnehmbar befestigten Linearantrieb (6) mit einer Antriebsstange (4) versehen. Diese Antriebsstange (4) ist mit der Schubstange (2) der Schiebereinheit durch eine Kupplung (3) verbindbar. Die Kupplung (3) ist derart ausgestaltet, dass sie bei dem in die Halterung (5) eingeschobenen Linearantrieb (6) durch ein Verschieben der Antriebsstange (4) gegen die Schiebereinheit selbsttätig kuppelt, währenddem sie beim Herausnehmen des Linearantriebes (6) aus der Halterung (5) quer zur Verschieberichtung der Antriebsstange (4) entkuppelt. Es ist dabei eine vom Linearantrieb (6) betätigbare und mit der Halterung (5) zusammenwirkende Verriegelungsvorrichtung (7) vorgesehen, durch welche der Linearantrieb (6) nach dem Einschieben in die Halterung (5) in dieser fixierbar bzw. vor dem Wegnehmen desselben wieder entriegelbar ist.

Figure imgaf001
A slide closure for a molten metal containing vessel is provided with a slide housing (1), a longitudinally guided slide unit with a push rod (2), a holder (5) and with a removably mounted in the latter linear drive (6) with a drive rod (4). This drive rod (4) can be connected to the push rod (2) of the slider unit by a coupling (3). The coupling (3) is designed such that it automatically couples with the linear drive (6) inserted into the holder (5) by displacing the drive rod (4) against the slide unit, while removing it from the holder when the linear drive (6) is removed (5) decoupled transversely to the direction of displacement of the drive rod (4). It is one of the linear drive (6) actuated and cooperating with the holder (5) locking device (7) provided by which the linear drive (6) after insertion into the holder (5) in this fixable or before the removal of the same again is unlockable.
Figure imgaf001

Description

Die Erfindung betrifft einen Schiebeverschluss für ein Metallschmelze enthaltendes Gefäss nach dem Oberbegriff des Anspruchs 1.The invention relates to a sliding closure for a vessel containing molten metal according to the preamble of claim 1.

Ein gattungsmässiger Schiebeverschluss ist in der Druckschrift EP 0 875 320 B1 geoffenbart, welcher dazu dient, beim Giessen den Ausfluss aus dem Gefäss zu regulieren, indem er durch Verschieben der Schiebereinheit mittels eines Linearantriebs via die Öffnungen der gegeneinander verspannten feuerfesten Verschlussplatten geöffnet, geschlossen oder gesteuert gedrosselt wird. Daher muss zunächst die Schubstange der Schiebereinheit mit der Antriebsstange des Linearantriebs gekoppelt werden. Dies erfolgt selbsttätig mit Hilfe des Linearantriebs, indem seine Antriebsstange gegen die Schubstange der Schiebereinheit verschoben wird. Nach dem Giessen wird der Linearantrieb üblicherweise aus der ihn aufnehmenden Halterung herausgezogen und verbleibt auf der Giessbühne, während das entleerte Gefäss zum Warten an einen Pfannenplatz oder dergleichen gebracht wird. Der Linearantrieb wird für eine erleichterte Montage in der Halterung seitlich in eine Führungsnut von letzterem eingeschoben, in der er während des Giessvorgangs weitgehend formschlüssig gehalten ist.A generic sliding closure is in the document EP 0 875 320 B1 is disclosed, which serves to regulate the pouring out of the vessel during casting by being opened, closed or controlled throttled by moving the slide unit by means of a linear drive via the openings of the mutually braced refractory closure plates. Therefore, first the push rod of the Slider unit to be coupled to the drive rod of the linear drive. This is done automatically by means of the linear drive, by its drive rod is moved against the push rod of the slide unit. After casting, the linear drive is usually withdrawn from the holder receiving it and remains on the casting platform, while the empty vessel is brought to a pan or the like for maintenance. The linear drive is inserted laterally into a guide groove of the latter for easier assembly in the holder, in which it is held largely positive fit during the casting process.

Der Erfindung liegt die Aufgabe zugrunde, einen Schiebeverschluss der eingangs genannten Art derart zu verbessern, dass mit ihm eine automatisierte Montage bzw. Demontage seines Linearantriebs vor und nach dem Giessen ermöglicht wird.The invention has for its object to improve a sliding closure of the type mentioned in such a way that with him an automated assembly and disassembly of his linear drive before and after the casting is possible.

Diese Aufgabe ist erfindungsgemäss nach den Merkmalen des Anspruchs 1 gelöst.This object is achieved according to the features of claim 1.

Mit dieser Konstruktion ist es möglich, den Linearantrieb mit der von ihm betätigten Verriegelungsvorrichtung präzis zu positionieren und während des Giessens zu fixieren, ohne die weiteren Funktionen des Linearantriebs, nämlich das selbsttätige Ankoppeln an die Schiebereinheit und das Verschieben derselben zum Regulieren des Ausflusses aus dem Giessgefäss zu beeinträchtigen.With this construction, it is possible to precisely position the linear actuator with the locking device actuated by it and to fix it during the casting, without the other functions of the linear drive, namely the automatic coupling to the slide unit and the displacement of the same to regulate the outflow from the casting vessel to impair.

Im Sinne einer möglichst einfachen Konstruktion ist es erfindungsgemäss vorgesehen, dass der Linearantrieb durch einen Hydraulikzylinder gebildet ist, der mit einem die Antriebsstange antreibenden Hauptkolben und einem unabhängig von diesem bewegbaren Zusatzkolben zum Betätigen der Verriegelungsvorrichtung versehen ist.In terms of the simplest possible construction, it is provided according to the invention that the linear drive is formed by a hydraulic cylinder which is provided with a main piston driving the drive rod and an auxiliary piston movable independently of this for actuating the locking device.

Auf diese Weise ist es möglich, den Linearantrieb vor dem Ankoppeln desselben an die Schiebereinheit des Schiebeverschlusses zu verriegeln bzw. ihn zu entriegeln, bevor die Kupplung am vorderen Ende der Antriebsstange gelöst wird.In this way, it is possible to lock the linear drive before coupling it to the slide unit of the sliding closure or to unlock it before the coupling is released at the front end of the drive rod.

Die Erfindung sieht in einer bevorzugten Ausführungsform vor, dass der Zusatzkolben mit einem auf der Antriebsstange geführten Verriegelungskopf versehen ist, der bei Beaufschlagung des Zusatzkolbens in Verriegelungsrichtung vorderseitig aus dem Innenraum des Hydraulikzylinders herausfährt und form- und/oder kraftschlüssig in eine entsprechend ausgeformte Ausnehmung in der Halterung eindringt, während er bei Beaufschlagung des Zusatzkolbens in Entriegelungsrichtung aus der Ausnehmung in der Halterung entfernt wird und in den Innenraum des Hydraulikzylinders zurückfährt.In a preferred embodiment, the invention provides that the additional piston is provided with a locking head guided on the drive rod, which moves out of the interior of the hydraulic cylinder on the front side when the additional piston is acted upon in the locking direction and positively and / or non-positively into a correspondingly shaped recess in the Holder penetrates while it is removed upon actuation of the additional piston in the unlocking from the recess in the holder and moves back into the interior of the hydraulic cylinder.

Es ist auch im Sinne einer möglichst einfachen Steuerung des Linearantriebs zweckmässig, wenn die Verriegelung des Hydraulikzylinders, die Ankoppelung seiner Antriebsstange an die Schubstange der Schiebereinheit und die Betätigung dieser während des Giessvorgangs zentral durch eine vorzugsweise programmierbare Steuereinheit gesteuert ausgeführt wird.It is also expedient in terms of the simplest possible control of the linear drive when the locking of the hydraulic cylinder, the coupling of its drive rod to the push rod of the slide unit and the operation of this is performed centrally controlled by a preferably programmable control unit during the casting process.

Ein besonders geeigneter Linearantrieb nach der Erfindung zeichnet sich dadurch aus, dass er multifunktional ausgebildet ist, indem er die Verriegelung des Linearantriebs in dessen Halterung, die Ankopplung seiner Antriebsstange an die Schubstange der Schiebereinheit und das Verschieben der Schiebereinheit während des Giessvorgangs zur Steuerung der Ausflussmenge der Metallschmelze aus dem Gefäss bewerkstelligt.A particularly suitable linear drive according to the invention is characterized in that it is designed to be multifunctional by the locking of the linear drive in the holder, the coupling of its drive rod to the push rod of the slide unit and the displacement of the slide unit during the casting process for controlling the outflow of the Molten metal from the vessel accomplished.

Es ist hierbei im Sinne einer möglichst kompakten Bauweise vorteilhaft, den Hydraulikzylinder so auszubilden, dass sein Innenraum durch den Hauptkolben und den Zusatzkolben in drei unabhängig voneinander mit Druck beaufschlagbare Kammern unterteilt ist, wobei der Hydraulikzylinder bei Beaufschlagung der mittleren Kammer verriegelt wird und die Antriebsstange bei Beaufschlagung der hinteren Kammer mit der Schubstange der Schiebereinheit gekoppelt wird bzw. bei Beaufschlagung der mittleren Kammer zum Regulieren des Giessvorgangs verschoben wird, während der Hydraulikzylinder bei Beaufschlagung der vorderen Kammer entriegelt wird.It is advantageous here in terms of a compact design as possible, the hydraulic cylinder in such a way that its interior by the main piston and the additional piston in three independently Pressure chambers is subdivided, wherein the hydraulic cylinder is locked upon application of the middle chamber and the drive rod is coupled upon application of the rear chamber with the push rod of the slide unit or is displaced upon application of the middle chamber for regulating the casting process, during the hydraulic cylinder upon application the front chamber is unlocked.

Es ist ausserdem zweckmässig, den Hydraulikzylinder so zu konstruieren, dass er zwischen beiden Kolben mit einer als Anschlag für den Zusatzkolben dienenden Trennwand mit einer Öffnung zum freien Durchlass der Antriebsstange versehen ist.It is also expedient to construct the hydraulic cylinder so that it is provided between the two pistons with a serving as a stop for the additional piston partition with an opening for free passage of the drive rod.

Die Erfindung ist nachfolgend anhand eines Ausführungsbeispiels unter Bezugnahme auf die Zeichnung näher erläutert. Es zeigen:

Fig. 1
eine perspektivische Ansicht einer Halterung eines Schiebeverschlusses mit einem vor der Montage gezeigten Linearantrieb;
Fig. 2
einen Längsschnitt des Linearantriebs nach Fig. 1 im verriegelten Zustand mit der Halterung;
Fig.3
den Linearantrieb nach Fig. 1 im verriegelten und im angekuppelten Zustand mit einer Schubstange des angedeuteten Schiebeverschlusses, ebenfalls im Längsschnitt dargestellt;
Fig. 4a bis Fig. 4f
den schematisch im Längsschnitt gezeigten Linearantrieb in verschiedenen Arbeitsstellungen.
The invention is explained in more detail below with reference to an embodiment with reference to the drawing. Show it:
Fig. 1
a perspective view of a holder of a sliding closure with a linear drive shown before assembly;
Fig. 2
a longitudinal section of the linear drive to Fig. 1 in the locked state with the holder;
Figure 3
after the linear drive Fig. 1 in the locked and in the coupled state with a push rod of the indicated slide closure, also shown in longitudinal section;
Fig. 4a to Fig. 4f
schematically shown in longitudinal section linear drive in different working positions.

Fig. 1 bis Fig. 3 zeigen eine Halterung 5 eines angedeuteten Schiebergehäuses 1 sowie einen in dieser aufnehmbaren Linearantrieb 6 für einen Schiebeverschluss, welcher das Schiebergehäuse 1 sowie eine in diesem via eine Schubstange 2 längsgeführte Schiebereinheit aufweist. Fig. 1 to Fig. 3 show a holder 5 of an indicated slide housing 1 and a recordable in this linear actuator 6 for a sliding closure, which has the slide housing 1 and a longitudinally guided in this via a push rod 2 slide unit.

Der Aufbau und die Arbeitsweise eines solchen Schiebeverschlusses sowie der Halterung und der Kupplung ist in der eingangs gewürdigten Druckschrift EP 0 875 320 B1 ausführlich erläutert und ist daher nachfolgend nicht mehr in allen Einzelheiten dargetan.The structure and operation of such a sliding closure and the holder and the coupling is in the initially acknowledged document EP 0 875 320 B1 explained in detail and is therefore not shown in detail in the following.

Der Linearantrieb 6 wird üblicherweise erst in die Halterung des Schiebeverschluss eingebaut, nachdem das insbesondere als Pfanne vorgesehene Gefäss auf der Giessbühne einer Stranggiessanlage gefüllt mit Metallschmelze platziert ist. Dies erfolgt vorteilhaft mit einem nicht näher gezeigten Robotermanipulator, welcher mit einem Kupplungsstück 10' des Linearantriebs 6 koppelbar ist und dabei den Linearantrieb 6 mit seinem Flansch 20 in eine Ausnehmung der Halterung 5 seitlich einschiebt.The linear drive 6 is usually installed only in the holder of the sliding closure, after the particular intended as a pan vessel is placed on the casting platform of a continuous casting filled with molten metal. This is advantageously done with a robot manipulator not shown in detail, which can be coupled with a coupling piece 10 'of the linear drive 6 and thereby inserts the linear drive 6 with its flange 20 laterally into a recess of the holder 5.

Um sicherzustellen, dass während des Betriebs der Linearantrieb 6 unverrückbar in der Halterung 5 fixiert bleibt, ist der Schiebeverschluss erfindungsgemäss mit einer mit dem Linearantrieb 6 betätigbaren und mit der Halterung 5 zusammenwirkenden Verriegelungsvorrichtung 7 ausgestattet.In order to ensure that during operation of the linear drive 6 remains immovably fixed in the holder 5, the sliding closure according to the invention is equipped with an operable with the linear drive 6 and cooperating with the holder 5 locking device 7.

Mit dieser Verriegelungsvorrichtung 7 wird nach dem Einschieben des Linearantriebs 6 in die Halterung 5 vorteilhaft mit dem Robotermanipulator eine sichere Fixierung desselben erreicht bzw. beim Wegnehmen des Linearantriebs wird dies wieder gelöst, womit der Linearantrieb nach dem Einschieben in die Halterung in dieser fixierbar bzw. vor dem Wegnehmen desselben wieder entriegelbar ist. Diese Verriegelungsvorrichtung 7 weist einen vorzugsweise zylindrischen Verriegelungskopf 8 auf, der im verriegelten Zustand formschlüssig in eine ebenfalls zylindrische Ausnehmung 9 der Halterung 5 eingeschoben ist. Demgegenüber ist dieser Verriegelungskopf 8 bei Beaufschlagung des Zusatzkolbens 12 der Verriegelungsvorrichtung 7 in Entriegelungsrichtung aus der Ausnehmung 9 entfernbar.With this locking device 7, after the insertion of the linear drive 6 in the holder 5 advantageously with the Roboteremanipulator a secure fixation of the same achieved or when removing the linear drive, this is solved again, bringing the linear drive after insertion into the holder in this fixable or before the removal of the same is unlocked again. This locking device 7 has a preferably cylindrical locking head 8, which is positively inserted in the locked state in a likewise cylindrical recess 9 of the holder 5. In contrast, this locking head 8 is removable upon actuation of the additional piston 12 of the locking device 7 in the unlocking of the recess 9.

Der erfindungsgemäss arbeitende Linearantrieb 6 umfasst einen Hydraulikzylinder 10 mit zwei unabhängig voneinander bewegbaren Kolben 11 und 12, wobei der Hauptkolben 11 zum Betätigen der Antriebsstange 4 dient, während der Zusatzkolben 12 zum Betätigen der Verriegelungsvorrichtung 7 eingesetzt wird. Wie insbesondere aus Fig. 4a ersichtlich, ist der Verriegelungskopf 8 auf der Antriebsstange 4 dicht geführt und relativ zu ihr durch den Zusatzkolben 12 verschiebbar. Zwischen beiden Kolben 11 und 12 ist im Hydraulikzylinder 10 eine als Anschlag für den Zusatzkolben 12 dienende Trennwand 13 angeordnet, die mit einer zentrischen Öffnung 14 versehen ist, durch welche die Antriebsstange 4 ragt.The linear drive 6 operating according to the invention comprises a hydraulic cylinder 10 with two independently movable pistons 11 and 12, the main piston 11 serving to actuate the drive rod 4, while the auxiliary piston 12 is used to actuate the locking device 7. As in particular from Fig. 4a can be seen, the locking head 8 is tightly guided on the drive rod 4 and relative to it by the auxiliary piston 12 slidably. Between two pistons 11 and 12 serving as a stop for the additional piston 12 partition wall 13 is arranged in the hydraulic cylinder 10, which is provided with a central opening 14 through which the drive rod 4 protrudes.

Diese Schubstange 2 ist dabei über eine Kupplung 3 mit der Antriebsstange 4 des Linearantriebs 6 verbindbar, wobei die Kupplung 3 durch Verschieben der Antriebsstange 4 des Linearantriebs gegen die Schubstange 2 der Schiebereinheit selbsttätig kuppelt. Sie ist mit einem Kupplungsteil endseitig an der Schubstange 2 und einem Kupplungsteil am vorderen Ende der Antriebsstange 4 des Linearantriebes 6 versehen, die beim Verschieben der Antriebsstange 4 kuppeln, währenddessen diese Kupplung 3 beim Herausnehmen des Linearantriebes 6 aus der Halterung 5 quer zur Verschieberichtung der Antriebsstange 4 selbsttätig entkuppelt.This push rod 2 is connected via a coupling 3 with the drive rod 4 of the linear drive 6, wherein the coupling 3 automatically couples by moving the drive rod 4 of the linear drive against the push rod 2 of the slide unit. It is provided with a coupling part end to the push rod 2 and a coupling part at the front end of the drive rod 4 of the linear drive 6, which couple when moving the drive rod 4, while this clutch 3 when removing the linear drive 6 from the holder 5 transversely to the direction of displacement of the drive rod 4 automatically disengaged.

Die automatisch arbeitende Kupplung 3 ist als Klauenkupplung ausgebildet, deren federbelastete Klauenelemente 16 beim Vorschieben der Antriebsstange 4 über den Kupplungskopf 17 der Schubstange 2 nach aussen gespreizt werden, bis sie durch die Federkraft einschnappen und den Kupplungskopf 17 der Schubstange 2 formschlüssig umgreifen, wie in Fig. 3 dargestellt. Das ebenfalls selbsttätige Auskuppeln erfolgt durch seitliches Herausziehen des Linearantriebs 6, indem die beiden Klauenelemente 16 im eingeschnappten Zustand quer zur Längsstreckung der Schubstange 2 an dem Kupplungskopf 17 gleiten, bis sie seitlich von ihm gelöst sind.The automatically operating clutch 3 is designed as a dog clutch, the spring-loaded jaw members 16 are spread when advancing the drive rod 4 via the coupling head 17 of the push rod 2 to the outside, they snap by the spring force and the coupling head 17 of the push rod 2 engage around a form fit, as in Fig. 3 shown. The also automatic disengagement is done by pulling out the linear drive 6 side by the two claw elements 16 slide in the snapped state transverse to the longitudinal extension of the push rod 2 on the coupling head 17 until they are laterally detached from it.

Aus Fig. 4a bis Fig. 4f ist die Arbeitsweise des Linearantriebs 6 veranschaulicht. Der Innenraum des Hydraulikzylinders 10 ist durch beide Kolben 11 und 12 in drei unabhängig voneinander beaufschlagbare Kammern 15a, 15b, 15c unterteilt, deren Einlässe mit entsprechenden Pfeilen 15, 15', 15"angedeutet sind, und zwar in weiss bei beaufschlagter und schwarz bei nicht beaufschlagter Kammer. Die zentrische Öffnung 14 in der Trennwand 13 ermöglicht den freien Durchlass eines Mediums von der Kammer 15b in diese Kammer 15b' zwischen dieser Trennwand 13 und dem Kolben 12.Out Fig. 4a to Fig. 4f the operation of the linear actuator 6 is illustrated. The interior of the hydraulic cylinder 10 is divided by two pistons 11 and 12 in three independently acted upon chambers 15a, 15b, 15c, the inlets with corresponding arrows 15, 15 ', 15 "are indicated, in white at beaufschlagter and black at not The central opening 14 in the partition wall 13 allows the free passage of a medium from the chamber 15b into this chamber 15b 'between this partition 13 and the piston 12.

Fig. 4b zeigt den Hydraulikzylinder 10 beim Einbau in die Halterung 5 des Gehäuses mit eingezogenem Kolben 12 und Verriegelungskopf 8. Fig. 4b shows the hydraulic cylinder 10 when installed in the holder 5 of the housing with retracted piston 12 and locking head. 8

Gemäss Fig. 4c wird der Hydraulikzylinder 10 bei Beaufschlagung der mittleren Kammer 15b mit der Halterung 5 verriegelt und die Antriebsstange 4 bei Beaufschlagung der hinteren, dieser Antriebsstange abgekehrten Kammer 15a mit der Schubstange 2 der Schiebereinheit gekoppelt (Fig.4d). Die beaufschlagte Kammer 15b ist durch den Pfeil 15' in weiss bzw. die andern beiden Pfeile 15, 15" bei nicht beaufschlagten Kammern 15a, 15c in schwarz verdeutlicht, wie in Fig. 4c ersichtlich ist.According to Fig. 4c When the middle chamber 15b is acted on, the hydraulic cylinder 10 is locked to the holder 5 and the drive rod 4 is coupled to the push rod 2 of the slide unit upon application of the rear chamber 15a facing away from this drive rod ( Fig.4d ). The acted chamber 15b is indicated by the arrow 15 'in white or the other two arrows 15, 15 "in uninvited chambers 15a, 15c in black, as in Fig. 4c is apparent.

Bei Beaufschlagung der Kammern 15a bzw. 15b wird während dem Giessen die Schiebereinheit und damit ein Öffnen bzw. Schliessen oder ein Drosseln des Schiebeverschlusses bewirkt (Fig. 4d bzw. Fig. 4e). Dies ist jeweils durch den weissen Pfeil 15 bzw. 15' angedeutet. In der Kammer 15b wird ein solcher Druck aufrechterhalten, dass der Verriegelungskopf 8 stets in die Ausnehmung 9 der Halterung 5 gedrückt ist.When the chambers 15a or 15b are acted upon, the slide unit is activated during casting, and thus an opening or closing or throttling of the sliding closure is effected ( Fig. 4d or. Fig. 4e ). This is indicated in each case by the white arrow 15 or 15 '. In the chamber 15b, such a pressure is maintained that the locking head 8 is always pressed into the recess 9 of the holder 5.

Im Prinzip könnte der Verriegelungskopf 8 derart in die Ausnehmung 9 der Halterung 5 gedrückt sein, dass ein Kraftschluss zwischen diesem und der Halterung 5 erzielt würde.In principle, the locking head 8 could be pressed into the recess 9 of the holder 5 such that a frictional connection between this and the holder 5 would be achieved.

Fig. 4f zeigt die Entriegelung des Verriegelungskopfs 8, bei dem die vordere Kammer 15c im Hydraulikzylinder 10 mit dem Mediendruck beaufschlagt wird, wie durch den weissen Pfeil 15" gezeigt ist. Sobald diese Entriegelung erfolgt ist, kann der Linearantrieb 6 seitlich herausgezogen werden, bei dem die Kupplung 3 selbsttätig gelöst wird. Fig. 4f shows the unlocking of the locking head 8, in which the front chamber 15c in the hydraulic cylinder 10 is subjected to the media pressure, as shown by the white arrow 15 "Once this unlocking is done, the linear actuator 6 can be pulled out laterally, in which the clutch 3 is solved automatically.

Die erfindungsgemässe Verriegelungsvorrichtung 7 eignet sich sowohl für sogenannte Zweiplattenschieber mit einer festen und einer beweglichen Schieberplatte als auch für sogenannte Dreiplattenschieber mit zwei festen Schieberplatten und einer zwischen diesen verschiebbaren Schieberplatte.The inventive locking device 7 is suitable both for so-called two-plate gate valve with a fixed and a movable slide plate and for so-called three-plate slide with two fixed slide plates and a sliding between these slide plate.

Im Prinzip könnte die Kupplung vice versa mit den Klauenelementen an der Schubstange der Schiebereinheit, indessen der andere Kupplungsteil mit der flanschartigen Ausbildung an der Antriebsstange des Linearantriebes vorgesehen sein.In principle, the coupling could be vice versa provided with the jaw members on the push rod of the slide unit, while the other coupling part with the flange-like design on the drive rod of the linear drive.

Claims (10)

Schiebeverschluss für ein Metallschmelze enthaltendes Gefäss, mit einem Schiebergehäuse (1), einer darin längsgeführten Schiebereinheit mit einer Schubstange (2), einer Halterung (5) am Schiebergehäuse sowie mit einem in dieser Halterung (5) wegnehmbar befestigten Linearantrieb (6) mit einer Antriebsstange (4), welche mit der Schubstange (2) der Schiebereinheit durch eine Kupplung (3) verbindbar ist, wobei die Kupplung (3) derart ausgestaltet ist, dass sie bei dem in die Halterung (5) eingeschobenen Linearantrieb (6) durch ein Verschieben der Antriebsstange (4) gegen die Schiebereinheit kuppelt, wobei die Kupplung (3) einen Kupplungsteil endseitig an der Schubstange (2) und einen Kupplungsteil am vorderen Ende der Antriebsstange (4) des Linearantriebes (6) aufweist, die beim Verschieben der Antriebsstange (4) kuppeln, dadurch gekennzeichnet, dass
eine vom Linearantrieb (6) betätigbare und mit der Halterung (5) zusammenwirkende Verriegelungsvorrichtung (7) vorgesehen ist, durch welche der Linearantrieb (6) nach dem Einschieben in die Halterung (5) in dieser fixierbar bzw. vor dem Wegnehmen desselben wieder entriegelbar ist.Sliding closure for a vessel containing molten metal, comprising a slide housing (1), a slide unit guided longitudinally therein with a push rod (2), a holder (5) on the slide housing and with a linear drive (6) removably mounted in this holder (5) with a drive rod (4), which is connectable to the push rod (2) of the slide unit by a coupling (3), wherein the coupling (3) is designed such that it at the in the holder (5) inserted linear drive (6) by a displacement the drive rod (4) couples against the slide unit, wherein the coupling (3) has a coupling part at the end on the push rod (2) and a coupling part at the front end of the drive rod (4) of the linear drive (6), which during displacement of the drive rod (4 ), characterized in that
one of the linear drive (6) actuated and cooperating with the holder (5) locking device (7) is provided, through which the linear drive (6) after insertion into the holder (5) in this fixable or before the removal of the same is unlocked again , Schiebeverschluss nach Anspruch 1, dadurch gekennzeichnet, dass
der Linearantrieb (6) einen Hydraulikzylinder (10), einen in diesem die Antriebsstange (4) antreibenden Hauptkolben (11) und einen unabhängig von diesem bewegbaren Zusatzkolben (12) zum Betätigen der Verriegelungsvorrichtung (7) umfasst.Sliding closure according to claim 1, characterized in that
the linear drive (6) comprises a hydraulic cylinder (10), a in this the drive rod (4) driving the main piston (11) and an independent of this movable auxiliary piston (12) for actuating the locking device (7). Schiebeverschluss nach Anspruch 2, dadurch gekennzeichnet, dass
der Zusatzkolben (12) mit einem auf der Antriebsstange (4) geführten Verriegelungskopf (8) versehen ist, der bei Beaufschlagung des Zusatzkolbens in Verriegelungsrichtung vorderseitig aus dem Innenraum des Hydraulikzylinders (10) herausfahrbar und vorzugsweise form- und/oder kraftschlüssig in eine entsprechend ausgeformte Ausnehmung (9) in der Halterung (5) des Hydraulikzylinders (10) einführbar ist, während er bei Beaufschlagung des Zusatzkolbens (12) der Verriegelungsvorrichtung (7) in Entriegelungsrichtung aus der Ausnehmung (9) entfernbar ist.Sliding closure according to claim 2, characterized in that
the additional piston (12) is provided with a locking head (8) guided on the drive rod (4), which can be moved out of the interior of the hydraulic cylinder (10) on the front side when the additional piston is acted upon in the locking direction and preferably shaped and / or positively locked into a correspondingly shaped one Recess (9) in the holder (5) of the hydraulic cylinder (10) is insertable, while it is upon actuation of the additional piston (12) of the locking device (7) in the unlocking of the recess (9) removable. Schiebeverschluss nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass
die Verriegelung des Hydraulikzylinders (10), die Ankoppelung seiner Antriebsstange (4) an die Schubstange (2) und die Betätigung der Schiebereinheit während des Giessvorgangs zentral durch eine vorzugsweise programmierbare Steuereinheit steuerbar ist.Sliding closure according to one of claims 1 to 3, characterized in that
the locking of the hydraulic cylinder (10), the coupling of its drive rod (4) to the push rod (2) and the actuation of the slide unit during the casting process is controlled centrally by a preferably programmable control unit. Linearantrieb für einen Schiebeverschluss nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass
er multifunktional ausgebildet ist, indem er die Verriegelung des Linearantriebs (6) in dessen Halterung (5), die Ankopplung an die Schubstange (2) der Schiebereinheit und das Verschieben der Schiebereinheit während des Giessvorgangs bewerkstelligt.Linear drive for a sliding closure according to one of claims 1 to 4, characterized in that
it is designed to be multifunctional, by bringing about the locking of the linear drive (6) in its holder (5), the coupling to the push rod (2) of the slide unit and the displacement of the slide unit during the casting process. Linearantrieb nach Anspruch 5, dadurch gekennzeichnet, dass der Innenraum des Hydraulikzylinders (10) durch den Hauptkolben (11) und den Zusatzkolben (12) in drei unabhängig voneinander beaufschlagbare Kammern (15a, 15b, 15c) unterteilt ist, wobei der Hydraulikzylinder (10) bei Beaufschlagung der mittleren Kammer (15b) verriegelbar und die Antriebsstange (4) bei Beaufschlagung der hinteren, dieser Antriebsstange abgekehrten Kammer (15a) mit der Schubstange (3) der Schiebereinheit koppelbar bzw. bei Beaufschlagung dieser hinteren oder der mittleren Kammer (15a, 15b) zum Regulieren des Giessvorgangs verschiebbar ist.Linear drive according to claim 5, characterized in that the interior of the hydraulic cylinder (10) by the main piston (11) and the auxiliary piston (12) in three independently acted upon chambers (15a, 15b, 15c) is divided, wherein the hydraulic cylinder (10). upon actuation of the middle chamber (15b) lockable and the drive rod (4) upon application of the rear, this drive rod remote chamber (15a) with the push rod (3) of the slide unit coupled or upon application of this rear or the middle chamber (15a, 15b ) is displaceable to regulate the casting process. Linearantrieb nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass
der Hydraulikzylinder (10) zwischen beiden Kolben (11, 12) mit einer als Anschlag für den Zusatzkolben (12) dienenden Trennwand (13) mit einer Öffnung (14), durch welche die Antriebsstange (4) ragt und ein freier Durchlass eines Mediums von der Kammer (15b) in diese zwischen dieser Trennwand (13) und dem Kolben (12) gebildeten Kammer (15b') gegeben ist.Linear drive according to claim 5 or 6, characterized in that
the hydraulic cylinder (10) between the two pistons (11, 12) with a serving as a stop for the auxiliary piston (12) partition (13) having an opening (14) through which the drive rod (4) protrudes and a free passage of a medium of the chamber (15b) is given in this between this partition wall (13) and the piston (12) formed chamber (15b '). Linearantrieb nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass
der Hydraulikzylinder (10) bei Beaufschlagung der vorderen Kammer (15c) beim Verriegelungskopf (8) entriegelbar ist,Linear drive according to claim 5 or 6, characterized in that
the hydraulic cylinder (10) can be unlocked when the front chamber (15c) is acted upon by the locking head (8), Linearantrieb nach Anspruch 8, dadurch gekennzeichnet, dass der Linearantrieb (6) nach dem Entriegeln quer zur Verschieberichtung der Antriebsstange (4) herausziehbar ist, bei dem die Kupplung (3) selbsttätig gelöst wird.Linear drive according to claim 8, characterized in that the linear drive (6) after unlocking transversely to the direction of displacement of the drive rod (4) can be pulled out, in which the clutch (3) is released automatically. Linearantrieb nach Anspruch 8, dadurch gekennzeichnet, dass der Linearantrieb (6) nach dem Entriegeln quer zur Verschieberichtung der Antriebsstange (4) herausziehbar ist, bei dem die Kupplung (3) selbsttätig gelöst wird.Linear drive according to claim 8, characterized in that the linear drive (6) after unlocking transversely to the direction of displacement of the drive rod (4) can be pulled out, in which the clutch (3) is released automatically.
EP17179692.3A 2017-07-05 2017-07-05 Sliding closure for a vessel containing molten metal Active EP3424618B1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
EP17179692.3A EP3424618B1 (en) 2017-07-05 2017-07-05 Sliding closure for a vessel containing molten metal
CN201880036150.4A CN110662616B (en) 2017-07-05 2018-06-01 Sliding closure for a vessel containing a molten metal and linear drive therefor
PCT/EP2018/064453 WO2019007597A1 (en) 2017-07-05 2018-06-01 Sliding gate for a vessel containing molten metal
BR112019025043-3A BR112019025043B1 (en) 2017-07-05 2018-06-01 SLIDING CLOSURE FOR A CONTAINER CONTAINING A CAST METAL
US16/616,799 US11192180B2 (en) 2017-07-05 2018-06-01 Sliding gate for a vessel containing molten metal
JP2019568692A JP7177795B2 (en) 2017-07-05 2018-06-01 Sliding closures for vessels containing molten metal
RU2019143836A RU2766944C2 (en) 2017-07-05 2018-06-01 Slide gate for molten metal container
KR1020197035022A KR102543316B1 (en) 2017-07-05 2018-06-01 Sliding gates for vessels containing molten metal
ZA2019/07930A ZA201907930B (en) 2017-07-05 2019-11-28 Slide closure for a vessel containing a molten metal

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EP17179692.3A EP3424618B1 (en) 2017-07-05 2017-07-05 Sliding closure for a vessel containing molten metal

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EP3424618A1 true EP3424618A1 (en) 2019-01-09
EP3424618B1 EP3424618B1 (en) 2021-03-10

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EP (1) EP3424618B1 (en)
JP (1) JP7177795B2 (en)
KR (1) KR102543316B1 (en)
CN (1) CN110662616B (en)
RU (1) RU2766944C2 (en)
WO (1) WO2019007597A1 (en)
ZA (1) ZA201907930B (en)

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WO2019007597A1 (en) 2019-01-10
US20200282456A1 (en) 2020-09-10
BR112019025043A2 (en) 2020-06-16
JP2020525287A (en) 2020-08-27
KR20200026802A (en) 2020-03-11
CN110662616A (en) 2020-01-07
US11192180B2 (en) 2021-12-07
RU2019143836A3 (en) 2021-09-02
CN110662616B (en) 2023-06-27
EP3424618B1 (en) 2021-03-10
JP7177795B2 (en) 2022-11-24
ZA201907930B (en) 2021-04-28
RU2019143836A (en) 2021-08-05
KR102543316B1 (en) 2023-06-13
RU2766944C2 (en) 2022-03-16

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