JPH0211960Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a tandem shutter stopper adjustment mechanism.

(Prior art) Conventionally, in a tundish stopper opening/closing device, the centering of the stopper with the tundish nozzle hole was performed by an operator standing on the tundish cover, loosening the rod nut or set bolt, and manually moving the stopper arm at a minute angle. This was done by rotating it.

In addition, when removing the tray cover,
This was done after loosening the rod nut, removing the set bolt, and manually rotating the stopper arm more than 90 degrees.

Therefore, during centering work, it is necessary to stand on the tundish cover, which is dangerous, the work is troublesome, the adjustment time is long, and the work cannot be performed during casting. Further, the task of removing the tundish cover was troublesome and took a long time.

(Purpose of the invention) The present invention was made in order to solve the above-mentioned conventional problems, and its purpose is to enable the centering of the tundish stopper and the removal of the tundish cover to be carried out safely and quickly. This is the purpose.

(Structure of the invention) Therefore, in the present invention, a stopper rod is rotatably supported by a bracket, a stopper arm is attached to the upper part of the stopper rod, a stopper is attached to the tip of the stopper arm, and the bracket is attached to the lower part of the stopper rod. Attaching a worm wheel that meshes with the supported worm and rotating the worm, the stopper rod is rotated by the worm wheel,
The stopper can be rotated by a stopper arm.

(Effects of the invention) According to the invention, when an operator stands on the work floor and rotates the worm of the bracket using a handle or the like, the stopper can be rotated via the worm wheel, stopper rod, and stopper arm. There is no need to stand on the tundish cover during work, and fine adjustment of the center of the stopper can be done quickly and reliably just by operating the handle, etc. Therefore, it has become possible to reduce the working time to about 1/5 of the conventional time.

Further, since the only operation required is the handle, etc., fine adjustment of the core can be performed even during casting.

Furthermore, when removing the tundish cover, the stopper can be turned over 90 degrees simply by operating the handle, etc., which simplifies the work and shortens the work time.

(Embodiment) As shown in Fig. 1, a vertically long bracket 1 is provided, which is made by combining plate materials by welding or the like, and a stopper rod 4 can be freely rotated by an upper bearing 2 and a lower bearing 3 of the bracket 1, and can be moved up and down. Support freely.

An arm guide 5 is attached to the top of the stopper rod 4.
At the same time, the upper bolt part 4a of the stopper rod 4 protruding from the arm guide 5 is fitted into the rear hole of the stopper arm 6, and fastened and fixed by the rod nut 7.

A set bolt 8 is attached to the tip of the arm guide 5.
and attach the stopper arm 6 to the set bolt 8.
Fit into the set hole and fasten and fix with the set nut 9.

A stopper 10 is provided at the tip of the stopper arm 6.
sandwich the upper part of the holder and fasten and fix it with nuts 11, 11.

On the other hand, a second rod is provided at the bottom of the stopper rod 4.
As shown in the figure, the worm wheel 12 supported by the bracket 1 is fitted and connected with the sliding key 13, and the worm wheel 12 is
The worm 14 supported by the bracket 1 is engaged with the worm 14.

A handle 15 is attached to the worm 14 for rotating the worm 14 by hand.

A vertical rack 16 is formed in the middle of the stopper rod 4, and a fan-shaped gear 18 that meshes with the rack 16 is pivotally connected to support plates 17, 17 fixed to the bracket 1 with a pin 19. An arm 20 for manually swinging the sector gear 18 is attached to the arm 18 .

If the tandate stopper adjustment mechanism is configured as described above, the operator can easily adjust the worm 14, worm wheel 12, The slide key 13 and the stopper rod 4 are rotated, and the stopper arm 6 moves the stopper 10.
rotates, allowing fine adjustment of the center relative to the tundish nozzle hole.

Furthermore, when removing the tundish cover, simply by rotating the handle 15 several times, the stopper arm 6 can similarly turn the stopper 10 over 90 degrees (see the dashed line in Fig. 1). .

The vertical sliding of the stopper rod 4 accompanying the opening and closing of the stopper is achieved by vertically operating the arm 20, which causes the stopper rod 4 to move up and down via the fan-shaped gear 18 and the rack 16. sliding key 1
The border is severed at 3.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a tandice stopper adjustment mechanism according to the present invention, and FIG. 2 is a perspective view of the main part of FIG. 1. 1... Bracket, 4... Stop Parrot, 5
...Arm guide, 6...Stopper arm, 7...
...Rodnut nut, 8...Set bolt, 10...
Stoppa, 12... Worm wheel, 13...
Sliding key, 14...worm, 15...handle.

Claims (1)

[Scope of utility model registration request] A stopper rod is rotatably supported by a bracket, a stopper arm is attached to the upper part of the stopper rod, a stopper is attached to the tip of the stopper arm, and a stopper is attached to the lower part of the stopper rod,
The tandy is characterized in that a worm wheel that meshes with the worm supported by the bracket is attached, and by rotating the worm, the stopper rod can be rotated by the worm wheel, and the stopper can be rotated by the stopper arm. Tension stop adjustment mechanism.