JPH0744379Y2 - Surface pressure load spring cartridge for slide nozzle device and surface pressure load spring cartridge holder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a surface pressure load spring cartridge mounted on a slide nozzle device for flow rate control of a molten metal container.

2. Description of the Related Art In order to apply surface pressure to the sliding surface of a plate brick incorporated in a slide nozzle device (hereinafter referred to as SN device), about 10 to 20 surface pressure load springs are incorporated in the device.

Conventionally, as shown in FIG. 6, the spring mounted on the SN device has a large number of surface pressure load springs (4) for applying surface pressure to the sliding surfaces of the bottom plate and the slide plate, and bolts (9). And preloaded by the nut (8) into the spring holder (1).

Since the surface pressure load spring (4) is a consumable item, it should be periodically removed from the SN device body for inspection, and if necessary, replaced with a new one. In order to take out the surface pressure load spring, it is necessary to remove the sliver valve body from the molten metal container each time.

However, it is difficult to remove the slide nozzle device main body from the molten metal container during the operation cycle, and unsteady work is required. Further, when the bolt (9) and the nut (8) are seized due to the influence of heat, the surface pressure load spring (4) is difficult to remove. Therefore, the purpose of the present invention is as follows: (1) Without removing the SN device body from the molten metal container,
The surface pressure load spring can be replaced in a short time during the operation cycle, and the replaced surface pressure load spring can be inspected offline.

(2) Prevent the bolts and nuts that preload and fix the surface pressure load spring from burning.

Especially.

Means for Solving the Problems The present inventors have succeeded in developing a surface pressure load spring cartridge for a slide nozzle device of the present invention as a result of various examinations and experiments to solve various defects of the conventional method as described above. ,
The technical constitution of the present invention is as specified in each claim of the utility model registration, and will be described in detail with reference to the accompanying drawings showing a specific example of the present invention.

FIG. 1 is a perspective view showing an assembly mode of a surface pressure load spring cartridge of the present invention, FIG. 2 is a plan view of the surface pressure load spring of the present invention, and FIG. 3 is a partial sectional side view taken along line III-III in FIG. Figure, 4th
Figure is a perspective view showing the procedure for setting the cartridge of the present invention to the spring holder. Figure 5 is the SN of the cartridge of the present invention.
It is a fragmentary sectional view showing the mode of arrangement in the device.

(2) is a cartridge piece, and the cartridge piece (2) has an end fitting recess (10) for a number of springs (4) on one side surface (11) thereof and is orthogonal to the side surface (11). At least two double-headed pins (5) are provided with locking grooves (5 ') on both side surfaces (12, 13). The spring end fitting recess (10) is not limited to the continuous groove shape as shown in FIG. 1, but the spring end fitting recess (10) may be independent.

As shown in FIG. 1, the cartridge piece (2) is arranged so that the side surfaces (11) having the recesses or grooves (10) for fitting the spring ends are faced to each other, and a predetermined number of springs (4) are provided respectively. These springs (4) are loaded in position and compressed to about half of the compression allowance when in use, and the double-headed pin (5) is locked in the locking groove (5 '). Use a pressure-loaded spring cartridge.

FIG. 4 shows a procedure for setting the surface pressure load spring cartridge of the present invention to the spring holder (1). After setting the cartridge type spring in a predetermined space of the spring holder (1), the cartridge lid (3) is closed. Secure with the fixing bolts (7).

The surface pressure load spring cartridge of the present invention set in the spring holder (1) as described above is, for example, as shown in FIG.
It is installed at a predetermined position on the SN device. By operating the toggle mechanism (6) shown in FIG. 5, the surface pressure load spring (4) is compressed and a required surface pressure is applied to the sliding surface of the plate brick for the SN device.

When inspecting the surface pressure load spring, first loosen the bolt (7) and remove the cartridge lid (3). Next, the cartridge type spring in which the surface pressure load spring (4) is incorporated is taken out and replaced with a cartridge type spring in which the surface pressure load spring (4) that has been inspected is replaced, and is pressed by the cartridge lid (3).

The cartridge containing the replaced surface pressure load spring (4) is inspected by off-line work, and if necessary, it is exchanged with an already inspected one.

When replacing the surface pressure load spring 4 offline, the preload double-headed pin (5) is removed while compressing the cartridge piece (2) with a small hydraulic press or the like, and the surface pressure load spring inside the cartridge piece (2) is removed. Take out (4) and inspect. Installation is done in reverse order.

Advantages of the Invention (1) By housing the surface pressure load springs in the cartridge, a plurality of surface pressure load springs can be replaced with one touch. Off-line inspection is possible, and replacement with a previously inspected cartridge can be performed at any time. Also, during transportation for inspection, the spring is protected, which is convenient for handling.

(2) Since the surface pressure load spring is preloaded by the preload pin, the operation range of the surface pressure load work during operation is small and the workability is good. In addition, the preload pin has no threaded portion, so there is no risk of seizure.

(3) Since the spring holder is provided with a lid, the surface pressure load spring can be inspected and maintained by removing and attaching the cartridge type spring without removing the heavy spring holder and the slide valve device main body.

(4) Since the recess is provided inside the cartridge piece and each surface pressure load spring can be positioned, the spring does not move inside the cartridge and the surface pressure is not biased.

[Brief description of drawings]

FIG. 1 is a perspective view showing an assembly mode of a surface pressure load spring cartridge of the present invention, FIG. 2 is a plan view of the surface pressure load spring of the present invention, and FIG. 3 is a partial sectional side view taken along line III-III in FIG. Figure, 4th
Figure is a perspective view showing the procedure for setting the cartridge of the present invention to the spring holder. Figure 5 is the SN of the cartridge of the present invention.
FIG. 6 is a partial cross-sectional view showing an arrangement mode in the device, and FIG. 6 is an exploded perspective view showing an example of a conventional surface pressure load spring, in which: 1: spring holder, 2: cartridge piece, 3: cartridge lid. , 4: Surface pressure load spring, 5: Double-headed pin, 5 ': Locking groove, 6: Toggle, 7: Lid fixing bolt, 8: Nut, 9: Spring fixing bolt, 10: Spring end fitting recess Place, 11: One side of cartridge, 12 and 13: Parallel side of cartridge.

Claims (3)

[Scope of utility model registration request] 1. A side surface (11) having a plurality of spring end fitting recesses (10), and both side surfaces (12, 1) orthogonal to the side surface (11).
3) A cartridge piece (2) having a plurality of double-headed pins (5) locking grooves (5 '), a double-ended pin (5) and a spring (4). A plurality of springs (4) are fitted to face the spring end fitting recesses (10), and a preload is applied to these springs (4) so that the cartridge piece (2) is attached by a double-headed pin (5). , (2) is locked, and a surface pressure load spring cartridge for a slide nozzle device. 2. A surface pressure load spring cartridge for a slide nozzle device according to claim 1, wherein the spring end fitting recess (10) has a continuous groove shape. 3. A side surface (11) having a plurality of spring end fitting recesses (10), and both side surfaces (12, 1) orthogonal to the side surface (11).
3) A cartridge piece (2) having a plurality of double-headed pins (5) locking grooves (5 '), a double-ended pin (5) and a spring (4). A plurality of springs (4) are fitted so as to face the spring end fitting recesses (10), and a preload is applied to these springs (4) so that the cartridge piece (2) is attached by a double-headed pin (5). A holder for a surface pressure load spring cartridge for a slide nozzle device, which is obtained by locking (2), the holder having a set space for the surface pressure load spring cartridge, and a cartridge lid (3). Surface pressure load spring cartridge holder for slide nozzle device.