JPH0596363A - Mechanism for fitting immersion nozzle in slide valve device - Google Patents

Abstract

PURPOSE:To improve the workability of setting and exchange to an immersion nozzle because there is enough space for the setting place of the immersion nozzle by making a hook of a supporting arm a mechanism for opening toward the horizontal direction while sliding in the vertical direction and descending at the supporting part for immersion nozzle. CONSTITUTION:The vertical sliding mechanism of the supporting arm 5 for immersion nozzle has the constitution, in which a guide pin freely inserted into a slot in the vertical direction of the arm 5 is projected at both sides of a spring holder and fixed as swingable to a bracket 6 and a spring is arranged in the spring holder. Therefore, by rotating a rotary disk 3 with driving mechanism, the supporting arm 5 is slid downward. Further, the supporting arm 5 opens the hook at the lower end of the supporting arm 5 by using the guide pin as the supporting point together with the vertical movement to release the holding of the immersion nozzle 40. Therefore, as the supporting arm is the mechanism opening/closing in the horizontal direction, there is the enough space in the width direction, and the lower direction has no limitation and the space of the supporting part for immersion nozzle is enlarged and the workability is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a submerged nozzle mounting mechanism in a slide valve device (hereinafter referred to as an SV device), which expands the space of a submerged nozzle support portion to improve workability of attaching and detaching the submerged nozzle and to introduce it automatically. To make it easier.

[0002]

2. Description of the Related Art A conventional mounting mechanism for a submerged nozzle uses a fluid cylinder, a bayonet, and other types. These conventional mechanisms are mechanisms in which a submerged nozzle support portion operates only in one vertical direction. There is.

[0003]

In the conventional submersible nozzle mounting mechanism that operates only in the vertical direction as described above, if the operating stroke is lengthened, the overall length of the SV device also increases, so the continuous casting mold placed below. Therefore, if the working stroke is shortened, it becomes difficult to attach / detach the immersion nozzle, and workability deteriorates. Further, in recent years, it has been desired to automate the replacement system of the immersion nozzle, and the conventional method is an obstacle to the automation of the replacement system.

[0004]

The inventors of the present invention have developed the present invention as a result of various studies to solve various defects of the conventional method as described above and to achieve automation, and the SV device of the present invention. Of the immersion nozzle mounting mechanism, a ring-shaped rotary disk is rotatably mounted on an SV device slide case or a seal case on the bottom surface of the molten metal container, and the rotary disk is provided with a flat portion and a projecting inclined portion on its lower surface. A ball receiving groove is provided across the flat portion and the projecting inclined portion, and a pair of brackets provided on the slide case or the seal case is pivotally mounted with a submerged nozzle support arm having a mechanism that is rotatable and slides up and down.
The support arm is provided with a spherical projection or a rotatable ball that engages with the ball receiving groove at an upper end thereof, and a submersible nozzle holding hook at a lower end thereof. ..

According to the present invention, which has the above-described technical structure, the lower end of the support arm is opened and closed in the width direction (or horizontal direction), so that there is a margin in the width direction and there is no restriction in the downward direction. The space of the submerged nozzle support is expanded, workability is improved, and automation is facilitated.

[0006]

Embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a vertical sectional view in which the immersion nozzle mounting mechanism of the present invention is applied to a two-layer type SV apparatus, and FIG. 2 is a vertical sectional view in which it is applied to a three-layer type SV apparatus.

In these drawings, 1 is a housing,
Reference numeral 2 is a slide case, 3 is a rotary disk attached to the lower surface of the slide case 2 or the seal case 4, and 5 is an immersion nozzle support arm, which is slidably pivotally attached to the lower surface of each case by an appropriate means. There is. As shown in FIG. 3, the turntable 3 is provided with a flat portion 30 and a projecting inclined portion 31 on the lower surface thereof at a predetermined interval, and as shown in FIG.
A receiving groove 32 for guiding a spherical projection or a rotating ball on the upper end portion of the immersion nozzle support arm 5 to be described later is bored between 0 and the projecting inclined portion 31.

The immersion nozzle support arm 5 is shown in FIGS.
As shown in FIG. 3, a pair of brackets 6 mounted on the lower surface (two-layer type) of the slide case 2 or the seal case 4 (three-layer type) has a built-in mechanism that is rotatable and slides vertically. At least two brackets 6 are provided.

As shown in FIG. 6, the vertical sliding mechanism of the support arm 5 has guide pins 8 which are loosely fitted in the vertical slots 7 of the arm 5 so as to project on both sides of the spring holder 9 and to be attached to the bracket 6. The spring holder 9 is rotatably fixed.
The spring 10 is arranged inside. Therefore, when the turntable 3 is rotated by a drive mechanism (cylinder or gear drive, not shown), the support arm 5 is
When the projection or the ball 11 provided on the upper end surface of the moving body moves from the flat portion 30 of the receiving groove 32 on the lower surface of the turntable 3 toward the projecting inclined portion 31, the support arm 5 has the built-in spring 1
0 is compressed and slid downward by the long hole 7 of the support arm 5, and slides the support arm 5 downward as shown in FIGS.

Further, as shown in FIG. 4, the receiving groove 32 is arranged so as to be inclined toward the center of the turntable 3 toward the projecting inclined portion 31, and due to this skew, the support arm 5 is described above. And the hook 12 at the lower end of the support arm 5 is opened outward with the guide pin 8 as a fulcrum.
The holding of the immersion nozzle 40 is released. 7 to 9 are schematic diagrams sequentially showing the holding, lowering and holding release of the immersion nozzle 40, and the housing and plate brick cartridge portion of the SV device are omitted and shown as 41.

The drive source of the rotary disk 3 may be various means such as a drive of a slide plate sliding fluid cylinder or a dedicated fluid cylinder, and a combination of a motor and a reduction mechanism.

[0013]

(1) Since the hook of the support arm is opened horizontally while vertically sliding on and descending from the immersion nozzle support portion, a space is created in the space for setting the immersion nozzle and the immersion nozzle setting and The workability of replacement is improved.

(2) Since the space at the place where the immersion nozzle is set has a margin, the automation of inserting the immersion nozzle up to the setting position becomes easy.

(3) It becomes possible to automate all the replacement work and the heavy muscle work under high temperature.

(4) By automation, even an unskilled person can easily perform accurate attachment / detachment.

[Brief description of drawings]

FIG. 1 is a schematic vertical sectional view in which the mechanism of the present invention is applied to a two-layer SV device.

FIG. 2 is a schematic vertical sectional view in which the mechanism of the present invention is applied to a three-layer SV device.

FIG. 3 is a side view showing a main part of a turntable.

FIG. 4 is an arrow A view of FIG.

FIG. 5 is a perspective view showing an assembly mode of a turntable and an immersion nozzle support arm.

FIG. 6 is a partial cross-sectional side view showing an assembly mode of a rotary disk and an immersion nozzle support arm.

FIG. 7 is a schematic side view showing a mounting mode of the immersion nozzle.

FIG. 8 is a schematic side view of the immersion nozzle at the start of descending.

FIG. 9 is a schematic side view showing a state where the lower end of the support arm is opened and the immersion nozzle is removed.

[Explanation of symbols]

 1 Housing 2 Slide Case 3 Rotating Plate 4 Sealing Case 5 Immersion Nozzle Support Arm 6 Bracket 7 Long Hole (Provided in Support Arm) 8 Guide Pin 9 Spring Holder 10 Spring 11 Spherical Protrusion or Ball 12 Hook 30 Flat Bottom of Rotating Plate 31 〃 〃 Projected inclined part 32 〃 〃 Receiving groove 40 Immersion nozzle 41 Housing and plate brick cartridge

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[Procedure amendment]

[Submission date] June 12, 1992

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Claims (4)

[Claims] 1. A slide valve device on the bottom surface of a molten metal container, wherein a ring-shaped rotary disk is rotatably mounted on a slide case or a seal case, and the rotary disk is provided with a flat portion and a projecting inclined portion on its lower surface. A ball receiving groove is provided between the portion and the projecting inclined portion, and a submerged nozzle support arm having a mechanism that is rotatable and slides up and down is pivotally attached to a pair of brackets provided in the slide case or the seal case, The support arm has a spherical protrusion or a rotatable ball engaging with the ball receiving groove at its upper end, and a immersion nozzle holding hook at its lower end, and the immersion nozzle of a slide valve device is characterized. Attachment mechanism. 2. The immersion nozzle mounting mechanism for a slide valve device according to claim 1, wherein the ball receiving groove is bent toward the center of the rotary disk. 3. The immersion nozzle mounting mechanism for a slide valve device according to claim 1, wherein said immersion nozzle support arm is slidably pivotally attached to said bracket through a spring. 4. The immersion nozzle mounting mechanism for a slide valve device according to claim 1, wherein the rotary disk has a mechanism that is rotated by the operation of a slide plate sliding fluid cylinder or a dedicated fluid cylinder.