JPS6145965Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a support device for a submerged nozzle used for casting molten metal.

[Conventional technology]

Conventionally, as a support device for a submerged nozzle, a system is used in which the nozzle is connected and fixed to a support member provided at the bottom of an upper molten metal container via a bayonet or a cotter.

However, with this method, replacing the immersion nozzle requires high-temperature work near the molten metal outlet, and the work environment is extremely poor, or the molten metal leaks from the fitting due to loosening during operation. There are also disadvantages such as situations in which the pouring operation has to be interrupted due to such problems, and furthermore, supporting devices must be attached to all upper melting containers, which increases equipment costs and obstructs other operations. It was hot.

However, on the other hand, since it is integrally fitted to the outlet of the melting container, it also has the advantage that it can move smoothly along with the movement of the outlet and the molten metal container.

[Problem that the invention attempts to solve]

In high-temperature environments, the immersion nozzle can be replaced quickly and easily, and even if the outlet moves due to the vertical movement of the molten metal container and the control of the pouring amount using a sliding nozzle, the immersion nozzle can be replaced quickly and easily. It is necessary for the nozzle to smoothly follow the movement of the outlet, and to tightly fit the outlet and the upper opening of the immersion nozzle.

[Means for solving problems]

The submerged nozzle support device according to this invention suspends hanging arms 14, 14 from both left and right sides of a cart 12 that moves along horizontal rails 13, 13, and supports the suspension arms 14, 14 between the lower parts of both hanging arms 14, 14. Horizontal shafts 10 and 1 protrude from the center of both left and right ends of the support plate 3.
0 is rotatably suspended in the support holes at the bottom of the hanging arms 14, 14, and the middle of two horizontal parallel bars 4, 4 placed on the left and right sides of the support plate 3 are connected to vertical shafts 9, 9, respectively. The rear ends of both parallel bars 4, 4 are connected to the left and right ends of the horizontal horizontal bar 7 by vertical pins 11, 11, respectively, and the two parallel bars 4, 4, the support plate 3, A parallelogram link 8 is formed by horizontal horizontal bars 7, and a submerged nozzle support 5 is provided at the front extension of the parallel bars 4, 4.

A means such as a weight 15 is provided on the horizontal bar 7 in order to firmly press and fit the immersion nozzle 1 into the outlet 16.

A horizontal shaft 10 is provided on both sides of the support plate 3, and the lower ends of a pair of hanging arms 14 are rotatably attached to the horizontal shaft 10, so that the immersion nozzle 1 can follow the vertical movement of the outlet 16. At the same time, the trolley 1 that moves via the rail 13 is placed on the upper end of the hanging arm 14.
2 is provided, and the structure is such that the immersion nozzle 1 can be moved back and forth by the trolley 12.

[Effect]

Due to the structure described above, when replacing the immersion nozzle 1, moving the horizontal bar 7 upward will separate the upper opening of the immersion nozzle 1 from the outlet 16, and the horizontal bar 7 should be moved in either the left or right direction. Swing, support device 1
By moving the nozzle 8 forward or backward, the immersion nozzle 1 can be evacuated from the high temperature environment near the molten metal and can be easily replaced.

〔Example〕

Embodiments of the present invention will be described based on the drawings.

The immersion nozzle 1 is inserted into a nozzle holder 2 having a horizontal support rod 6, and the support rod 6 is placed on a concave immersion nozzle support 5 provided at the tip of the parallel rod 4 of the support device 18. After that, the outlet 16 of the main pot 17
In order to fit the upper opening of the immersion nozzle 1 into the immersion nozzle 1, a pair of hanging arms 14 are attached to the horizontal shafts 10 provided on both left and right sides of the support plate 3, and a trolley 12 is attached to the upper end of the hanging arms 14. The cart 12 is engaged with the rail 13, and the submerged nozzle 1 mounted on the submerged nozzle support 5 is moved forward or backward by the cart 12 so as to fit into the outlet 16 of the parent pot 17.

Next, in order to align and fit the upper opening of the immersion nozzle 1 into the outlet 16, a parallel bar 4 is rotatably attached to a vertical shaft 9 provided on the upper surface of the support plate 3, and a parallel bar 4 is attached vertically to the rear end of the parallel bar 4. By swinging the horizontal rod 7 rotatably provided via the pin 11 to the left and right, the vertical shaft 9
The upper opening of the submerged nozzle 1 is positioned directly below the outlet 16 using the vertical pin 11 as a fulcrum. After that, in order to fit the immersion nozzle 1 into the outlet 16, the horizontal rod 7 is lowered, but the immersion nozzle 1 rises using the horizontal shafts 10 provided at both ends of the support plate 3 as a fulcrum, and is fitted into the outlet 16. . Further, the fitting portion between the outlet 16 and the immersion nozzle 1 is strongly pressed, and a load is applied from a weight 15 provided on the horizontal bar 7 to prevent steel leakage.

Therefore, the immersion nozzle 1 can be easily moved up and down and left and right using the vertical shaft 9 attached to the support plate 3, the horizontal shaft 10, and the vertical pin 11 provided at the rear end of the parallel bar 4 as supporting points. Since the support device 18 is mounted on the rail 13, the submerged nozzle 1
When replacing the nozzle, the upper part of the submerged nozzle 1 is removed from the outlet 16, and the nozzle can be replaced by moving forward or backward to escape from the high temperature environment.

[Effect of idea]

With the support device described above, the immersion nozzle can smoothly follow the movement of the molten metal container or the outlet, and the weight 15 provided on the horizontal bar allows the immersion nozzle 1 to be moved by lever action with the horizontal axis 10 as the fulcrum. The upper opening of is strongly pressed against the outlet 16,
Leakage from the fitting portion can also be prevented. Furthermore, when replacing the immersion nozzle 1, it can be done by evacuating from the high-temperature environment near the molten metal, which reduces the workload on the operator and can be done easily and quickly.

[Brief explanation of drawings]

The drawings show an embodiment of the submerged nozzle support device according to the present invention, and FIG. 1 is a perspective view of the submerged nozzle support device, and FIG. 2 is a sectional view showing the submerged nozzle fitted to the outlet. be. 1... Immersion nozzle, 2... Nozzle holder, 3...
...Support plate, 4...Parallel bar, 5...Immersion nozzle support, 6...Horizontal support bar, 7...Horizontal bar, 8...Parallelogram link, 9...Vertical axis, 10...Horizontal axis, 11...Vertical pin, 12...Dolly, 13...
Rail, 14... Hanging arm, 15... Weight, 16...
... Outlet, 17... Main pot, 18... Support device.

Claims (1)

[Scope of utility model registration request] Dolly 1 moving along horizontal rails 13, 13
Hanging arms 14, 14 are suspended from the left and right sides of 2, and a support plate 3 is arranged between the lower parts of both hanging arms 14, 14,
A horizontal shaft 1 protrudes from the center of both left and right ends of the support plate 3.
0 and 10 are rotatably suspended in support holes at the bottom of the hanging arms 14 and 14, and the middles of two horizontal parallel bars 4 and 4 placed on the left and right sides of the support plate 3 are connected to vertical shafts 9 and 9, respectively. It is rotatably mounted on the support plate 3 by means of, and the rear ends of both parallel bars 4, 4 are connected to both left and right ends of the horizontal horizontal bar 7 by vertical pins 11, 11, respectively.
A parallelogram link 8 is constructed by the two parallel bars 4, 4, the support plate 3, and the horizontal horizontal bar 7, and the parallel bars 4, 4
A submerged nozzle support device comprising a submerged nozzle support 5 provided on the front extension of the submerged nozzle.