JPS6041324Y2 - Mold vibration device in continuous casting equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a mold vibration device in continuous casting equipment.

Conventionally, mold vibration methods include link, lever one type,
Various methods have been proposed, such as the direct crank method, but
All of them are unsuitable because they have complicated structures and low precision.

In view of this fact, the present invention provides a mold vibrating device with a simple structure and high accuracy.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

This embodiment relates to continuous casting equipment with an arc-shaped slab conveyance path. 1 is a vibration table that supports a mold 2, 3, 4,
5.6 is a cylinder device arranged on the operating floor 7 below the four corners of the vibration table 1, and each cylinder device 3 to
The upper ends of the piston rods 3a to 6a of 6 are bolted to the lower surface of the table 1.

Also, the heights of the cylinder bodies 3b to 6b of each cylinder device 3 to 6 are the same, but the front edge side cylinder bodies 3b, 4
The cross-sectional area A1 of b is set to be larger than the cross-sectional area of the rear-edge cylinder bodies 5b and 6b (A1>A2).

Further, the upper chambers of the leading edge cylinder bodies 3b and 4b and the lower chambers of the trailing edge cylinder bodies 5b and 6b are communicated with each other by a hydraulic circuit 8, and the lower chamber opening of the leading edge cylinder bodies 3b and 4b and the rear chamber are communicated with each other by a hydraulic circuit 8. edge cylinder body 5b,
6b are communicated with each other by a hydraulic circuit 9 to the upper chamber.

Reference numeral 10 denotes a pair of pillars erected on the front edge side of the vibration table 1 on the operating floor 7, 11 a horizontal shaft rotatably supported by both branches 10, and 12 arranged so as to surround the vibration table 1. A vibrating frame 13 is provided on each side of the vibrating table 1 at a position on a vertical plane passing through the center of the rear-edge cylinder device 5.6 on both sides of the vibrating table 1. A pair of horizontal pins 15 protruding through the bracket 14 are bearings that are bolted onto the vibrating frame 12 and rotatably support the horizontal pins 13.

In the above configuration, the rear edge side central portion 1'2a of the vibrating frame 12
When the vibration frame 12 is moved up and down in the directions of arrows C and D using an eccentric cam mechanism (not shown), the vibration frame 12 reciprocates around the horizontal shaft 11, and the rear of the vibration table 1 is moved through the bearing 15 and the pin 13. The edge side rotates back and forth with stroke S2.

As a result, the piston rods 5a and 6a of the trailing edge cylinder devices 5 and 6 also move up and down with the stroke S2, and when the piston rods 5a and 6a rise, pressure oil flows into the upper chambers of the trailing edge cylinder bodies 5b and 6b. is the leading edge side cylinder body 3
The piston rods 3a, 4 enter into the lower chamber openings of the piston rods 3a, 4b.
Increase a.

On the contrary, the piston rods 5a of the rear edge side cylinder devices 5, 6
.

6a descends, the trailing edge side cylinder bodies 5b, 6
The pressure oil in the lower chamber 2 of b enters the upper chamber 2 of the leading edge side cylinder bodies 3b, 4b and lowers the piston rods 3a, 4a.

Therefore, in conjunction with the lifting and lowering of the piston rods 5a, 6a of the trailing edge cylinder devices 5, 6, the leading edge cylinder devices 3, 4
The piston rods 3a and 4a also move up and down,
Since the cross-sectional area A□ of the leading-edge cylinder bodies 3b, 4b is set larger than the cross-sectional area A2 of the trailing-edge cylinder bodies 5b, 6b (A1>A2), the trailing-edge piston rod 5a,
Compared to the stroke S2 of 6a, the leading edge side piston rod 3
The stroke S1 of a and 4a is smaller (S□〈S
2).

Therefore, both strokes S1. The vibration table 1 performs a reciprocating circular arc movement around the bending point B determined by S2 on the leading edge side by a stroke S1 with a radius R1, and on the trailing edge side by a radius R2 and a stroke S2, and then injects into the mold 2. Slabs are continuously cast from the molten steel.

By the way, as mentioned above, the ratio of the strokes S□ and S2 is the cross-sectional area A1. Since it is determined by the ratio of A2, it ends up being 51xA,
=S2xA, .If the difference between A1 and A2 is increased, the casting radius R becomes smaller, and as the difference between A1 and A2 is reduced, the casting radius R becomes larger.

Therefore, at the stage of designing continuous casting equipment, the casting radius R is first determined, and the strokes S□, S2 are determined based on this casting radius R. Therefore, the cross-sectional area A1° is determined by the determined strokes S□, S2. All you need to do is determine N.

This allows the mold 2 to be vertically vibrated along a predetermined arc line.

In the above embodiment, the case where the slab conveyance path is arc-shaped is explained as an example, but it is not limited to this. If the cross-sectional area is (A1 = A2), (S work = 82). Therefore, the vibration table 1 and the mold 2 move up and down along the vertical line.

Therefore, this configuration can be applied to a type in which the slab conveyance path is vertical or vertically bent.

As described above, the mold vibrating device for continuous casting equipment according to the present invention has an extremely simple structure having four cylinder devices and a vibrating body, is difficult to break down, and is excellent in economical efficiency.

Furthermore, in conventional link/lever and direct crank systems, the accuracy is relatively low due to play in the links and crank connections, but with the molded vibration device of the present invention, the cylinder device It vibrates a vibration table and does not use any links or cranks, so it is highly accurate.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a side view, FIG. 2 is a plan view, and FIG. 3 is a vertical sectional view of the main parts showing the vibration state. 1... Vibration table, 2... Mold, 3-6... Cylinder device, 8, 9...
・Hydraulic circuit, 10... Support column (fixed body), 11.
...Horizontal axis, 12 ... Vibration frame (vibrating body)
, 13...horizontal pin, 15...bearing,
A, C... upper chamber, mouth, 2... lower chamber.

Claims (1)

[Scope of utility model registration request] Cylinder devices for raising and lowering the table are provided below the four corners of the vibration table that supports the mold, and the upper chamber of the leading edge cylinder device and the lower chamber of the trailing edge cylinder device are communicated with each other, and the lower chamber of the leading edge cylinder device and the lower chamber of the trailing edge cylinder device are connected to each other. The upper chamber of the trailing edge cylinder device is communicated with each other, a vibrating body whose one end is rotatably supported by a fixed body is provided, and the vibrating body and appropriate positions on both sides of the vibrating table are respectively rotatably connected. Features: Mold vibration device in continuous casting equipment.