JPH0415400Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a dummy bar storage device used when starting a continuous casting machine such as a moving block mold type continuous casting machine or a twin belt type continuous casting machine.

[Prior Art] In recent years, a continuous casting machine has been developed that injects molten metal into a mold space formed by a pair of block molds or twin belts using a tundish nozzle, and continuously casts slabs that have been cooled and solidified. It is being put into practical use.

In order to prevent the molten metal injected from the tundish nozzle from flowing out into the mold space when the continuous casting machine is started, it has been considered to insert a dummy bar from the slab inlet/outlet to dam the outflow of the molten metal.

[Problems to be solved by the invention] However, since the dummy bar and the slab are joined, it is necessary to separate the slab and the dummy bar after the dummy bar is pulled out of the mold space.

In this case, since the dummy bar and slab are moving at a constant speed, they must be cut using a running shearing machine or the like, resulting in a large-scale equipment.

[Means for Solving the Problems] The present invention has been made for the purpose of solving the above-mentioned expected problems and making it possible to easily separate the dummy bar from the slab. A groove is provided in the width direction of the dummy bar, a protrusion in the width direction is provided at the tip of the dummy bar body to be inserted into the mold so as to fit in the groove, and a groove is provided on the downstream side of the mold in the feeding direction of the slab cast from the mold. A tilting part is provided between the fixing part and the mold, the fixed part side being tiltably supported via a pin, and the mold side being connected to a tilting drive device. The fixing part constitutes a dummy bar storage table that transports slabs on the upper surface and has a space for accommodating the dummy bar body inside, and when the tilting part is tilted upward, the dummy bar body is guided into the tilting part and horizontally lowered. This invention relates to a dummy bar storage device for a continuous casting machine, characterized in that a dummy bar head member coupled to the dummy bar body can be separated at times.

[Operation] When the dummy bar body pulled out from the mold space together with the slab is tilted downward, the groove and the convex portion are disengaged and the connection between the dummy bar body and the dummy bar head portion is severed. The dummy bar main body is drawn into the dummy bar housing from the tilting section and is housed therein, and at the same time, the slab is moved on the closed tilting section and cast out.

[Example] Hereinafter, an example of the present invention will be described based on the drawings.

Figures 1 and 2 are an embodiment of the present invention,
The upper corner of the mold space insertion side tip of the long dummy bar body 1 is cut out, and a protruding strip 3 is formed at the tip of the lower corner 2.
The lower corner of the dummy bar intermediate head 7, which is connected by a pin 6 at the other end of the dummy bar head 5 which has a slab connecting part 4 at one end, is cut out, and the inclined surface 8 and the inclined surface 9 are grooves 10 in the width direction of the dummy bar intermediate head 7 on the lower surface of the dummy bar intermediate head 7.
A pin 13 is embedded in a groove-shaped gap 12 formed on the upper surface of the joint between the dummy bar body 1 and the dummy bar intermediate head 7 so that it can be fitted with the protrusion 3 provided with a slight gap 11. be. Pinch roll 1 on the passage line 14 of the dummy bar body 1
5, a dummy bar storage stand 16 having approximately the same length as the dummy bar body 1 is installed on the downstream side. The dummy bar storage stand 16 has a tilting section 17 on the side of the pinch roll 15.
and a fixed part 18, the tilting part 17 is pivotally connected to the fixed part 18 by a pin 19, and the piston rod 22 of a fluid pressure cylinder 21 such as a hydraulic cylinder pivotally supported on the frame 20 is attached to the front end of the tilting part 17. The tilting part 17 is pivotally mounted so that the tilting part 17 can be tilted about the pin 19, and a dummy bar main body 1 inserted between the side frames 23 on both sides of the tilting part 17 is provided with an inner upper surface so as to be able to come into contact with the dummy bar main body 1. Guide plate 24
is fixed, and furthermore, a roller 25 and a support plate 26 for supporting the slab are provided on the upper surface of the tilting portion 17. The fixing part 18 is provided with rollers 27 for supporting the slab and a support plate 28 on the upper surface, and the dummy bar main body 1 can be accommodated between the guide columns 29 and the bottom plate 30 provided at a required interval. . The tilting part 17
When the rollers 25, 27 and the support plates 26, 28 are positioned on the same plane as the fixed part 18,
so that it is located slightly below the passage line 14 on the upper surface. In the figure, reference numeral 31 indicates a guide column provided within the tilting portion 17, and reference numeral 32 indicates a stopper.

Next, the operation of separating the dummy bar using the device of the present invention will be explained.

First, the piston rod 2 of the fluid pressure cylinder 21
2 protruding from the tilting part 17 of the dummy bar storage stand 16.
is tilted upward, the elongated dummy bar main body 1 is projected from inside the tilting part 17, and the dummy bar intermediate head 7 is attached to each inclined surface 8, at the tip of the dummy bar main body 1.
9, fit the protrusion 3 and groove 10, and connect by embedding the pin 13 in the groove-like gap 12. With the dummy bar intermediate head 7 and the dummy bar 5 connected to the pin 6, the mold space is opened. Insert inside.

The dummy bar intermediate head 7 is firmly connected to the dummy bar body 1 by a pin 13 without loosening.

When the dummy bar body 1 is pulled out together with the slab,
The flexible portion 33 of the dummy bar main body 1 that is pulled out sequentially enters the tilting portion 17 and reaches the fixed portion 18 . When the dummy bar intermediate head 7 reaches position A, the fixed frame 34 attached to the pinch roll frame
A dummy bar head 5 and a dummy bar intermediate head 7 are mounted on the dummy bar head 5 and the dummy bar intermediate head 7.

At this time, when the piston rod 22 of the fluid pressure cylinder 21 is pulled in, the tilting part 17 moves downward,
The roller 35 attached to the tilting part pushes down the dummy bar body 1, the inclined surfaces 8 and 9 are separated, and the protrusion 3 and the groove 10 are disengaged and separated.

The separated dummy bar main body 1 is pulled into the inclined part 17 of the dummy bar storage case,
At the same time, the inclined part 17 further tilts downward and hits the stopper 32, and the inclined part 17 and the fixed part 18 form the same plane, and the dummy bar intermediate head 7 and the dummy bar head together with the slab cast by the pinch rolls 15. 5 moves downstream on the roller 25 and support plate 26 of the inclined part 17, and further moves on the roller 27 and support plate 28 of the fixed part 18.

It should be noted that the dummy bar storage device for a continuous casting machine of the present invention is not limited to the above-described embodiment, and it goes without saying that various changes can be made without departing from the gist of the present invention.

[Effects of the invention] As described above, according to the dummy bar storage device for a continuous casting machine of the present invention, the head portion and main body of the dummy bar connected by the widthwise groove and the protruding strip can be connected to each other by the slope of the dummy bar storage case. The dummy bar separation position is fixed to the rollers and pinch roll mount attached to the section, and the dummy bar is separated by the operation of a tilting cylinder, and the dummy bar body can be stored in the dummy bar storage stand, so a cutting machine such as a running shear can be installed. It is possible to easily separate the dummy bar without having to do anything, and at the same time, it is also possible to store the dummy bar, and various excellent effects such as being able to start continuous casting smoothly can be achieved.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of one embodiment of the apparatus of the present invention, and FIG. 2 is an explanatory diagram of a dummy bar in FIG. 1. 1 is a dummy bar main body, 3 is a convex strip, 5 is a dummy bar head, 7 is a dummy bar intermediate head, 10 is a groove, 12 is a groove-shaped gap, 13 is a pin, 16 is a dummy bar storage stand, 17 is a tilting part, 18 is a fixed part , 21
is a fluid pressure cylinder, 24 is a guide plate, 25, 27
indicates a roller, and 26 and 28 indicate support plates.

Claims (1)

[Scope of utility model registration request] A groove is provided in the width direction on the lower surface of the dummy bar head member, and a protrusion in the width direction is provided at the tip of the dummy bar body to be inserted into the mold so that it can fit into the groove, and the dummy bar head member is placed on the downstream side of the mold to be cast from the mold. A fixed part extending in the slab feeding direction is provided, and a tilting part is provided between the fixed part and the mold, the fixed part side being tiltably supported via a pin, and the mold side being connected to a tilting drive device. , the tilting part and the fixed part constitute a dummy bar storage table that transports slabs on its upper surface and has a space for accommodating the dummy bar body inside, and when the tilting part tilts upward, the dummy bar body is tilted. 1. A dummy bar storage device for a continuous casting machine, characterized in that a dummy bar head member connected to the dummy bar main body can be separated when the dummy bar head member is introduced into the dummy bar body and horizontally lowered.