JPH01306053A - Caterpillar type continuous casting machine - Google Patents

Abstract

PURPOSE:To eliminate obstruction to shifting of block mold during operation and to prevent unstability of the block mold to vertical direction by arranging as facing roller slides, which both end parts to width direction of a carrier body are held from vertical direction as shiftable, at position of mold space in fixed frames. CONSTITUTION:On upper and lower faces of recessed grooves 12 at the position of the mold space 8 in the fixed frames 5, that is, at straight part of the upper and lower block molds 7 after passing through the part of driving rolls 3, respectively and are mutually faced till coming to the part of the idle rolls 4, the roller slides 13 holding both end parts to the width direction of the carrier body 9 as shiftable to line direction are arranged as facing at plural number. When the continuous casting machine is operated and the block molds 7 comes to the mold space 8, both end parts of the carrier body 9 are held from the vertical direction with the roller slides 13 arranged in the recessed grooves 12 of the fixed frames 5. Then, as the block molds 7 are held up with unstable gap and are not inclined, the block molds 7 are not brought into contact with a tundish nozzle and step difference between the adjoining block molds is not developed and finishing accuracy of the cast slab is improved.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an endless track type continuous casting machine.

[Prior Art] In general, a track type continuous casting machine consists of forming a mold by connecting a large number of block molds supported by a carrier body in an endless track shape and wrapping them around a fixed frame, and then combining the molds vertically to fill a mold space. A tundish nozzle is inserted into one opening in the mold space, molten metal is supplied from the tundish nozzle, and the mold and the solidified slab are moved toward the other opening end. There are horizontal continuous track casting machines and inclined continuous track casting machines.

For example, a horizontal continuous track type continuous casting machine is shown in FIG. It is supplied to the mold space 8 formed between the upper and lower block molds 7, which move along the same line, is cooled and solidified by the block mold 7, and is taken out of the machine as a slab.

[Problems to be Solved by the Invention] However, in the conventional endless track type continuous casting machine described above, the block mold 7 may shake in the vertical direction during operation.
In particular, when passing through the drive roll 3 and entering the mold space 8, the block mold 7 is lifted up and tilted to the extent that it rattles, and as a result, the block mold 7 comes into contact with the tandate nozzle, and in some cases In some cases, the tandate nozzle was damaged. Furthermore, if the block molds 7 proceed in an inclined state, a difference in level will occur between adjacent block molds 7 at the position of the mold space 8, and unevenness will be formed on the surface of the slab, resulting in poor finishing accuracy of the slab. Therefore, cracks tend to occur, which causes a decrease in yield.

In view of the above-mentioned circumstances, it is an object of the present invention to provide an endless track type continuous casting machine that does not impede the movement of a block mold during operation and can prevent rattling in the vertical direction. It is.

[Means for Solving the Problems] The present invention includes a plurality of block molds supported on a carrier body, upper and lower movable molds arranged in an endless series facing each other, and the movable molds having opposing portions moved in the same direction. In an endless track type continuous casting machine, a continuous mold space is formed by driving the machine along a fixed frame, molten metal is supplied to the mold space, and the molten metal is cooled and solidified by a block mold to cast slabs. The present invention is characterized in that roller slides that movably clamp both width ends of the carrier body from above and below are disposed facing each other in the mold space of the fixed frame.

[Function] Therefore, in the present invention, when the block mold passes through the mold space, it is movably clamped from above and below by the carrier body supporting the block mold or the roller slide disposed on the fixed frame. The block mold moves smoothly without being lifted and tilted due to wobble.

[Example] Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 are explanatory diagrams of one embodiment of the present invention, and the same parts as in FIG. 3 are given the same reference numerals.

As shown in FIGS. 1 and 2, wheels 11 pivotally connected to the carrier body 9 by pins 10 run on opposite surfaces in the width direction of fixed frames 5 disposed at both width ends of the carrier body 9. A guide rail 6 is formed, and a groove 12 is formed along the guide rail 6, and both width ends of the carrier body 9 are loosely inserted into the groove 12.

The upper and lower surfaces of the concave groove 12 at the position of the mold space 8 of the fixed frame 5, that is, at the straight line portion where the upper and lower block molds 7 pass through the drive roll 3 section, face each other, and reach the idle roll 4 section. , the carrier body 9
A plurality of roller slides 13 are disposed facing each other and sandwich both width ends of the roller slides so as to be movable in the line direction.

The roller slide I3 has a casing I with an open top surface.
This is a support member in which a plurality of guide rollers I5 are arranged in an endless manner within a fixed block 16, and is attached by screwing a bolt into a fixed block 16.

Note that 17 in the figure indicates a chain wound between the drive roll 3 and the idle roll 4.

When the track type continuous casting machine with such a configuration is operated, when the block mold 7 passes through the drive roll 3 portion and reaches the straight part forming the mold space 8, both width ends of the carrier body 9 The block mold 7 is held between the vertical direction by the roller slide 13 disposed in the concave groove 12 of the fixed frame 5, and the block mold I is not lifted up by the amount of wobbling and tilted. 2 and move smoothly in the line direction, and there is no difference in level between adjacent block molds 7 at the mold space 8 position, improving the finishing accuracy of the slab and preventing cracks. Occurrence is also prevented.

It should be noted that the present invention is not limited to the above-mentioned embodiments,
Of course, various changes may be made without departing from the spirit of the invention.

[Effect of the invention] As described above, according to the endless track type continuous casting machine of the present invention,
Since it is possible to prevent the block mold from shaking in the vertical direction as it passes through the mold space during operation, various excellent effects can be achieved, such as preventing the accident of tundish nozzle breakage and improving the product yield.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of one embodiment of the present invention, FIG. 2 is a view taken along arrows -■ in FIG. 1, and FIG. 3 is a general explanatory diagram of an endless track type continuous casting machine. In the figure, 5 is a fixed frame, 6 is a guide rail, 7 is a block mold, 8 is a mold space, 9 is a carrier body, 12 is a groove, and 13 is a roller slide. Figure 1 Figure 2 @

Claims (1)

[Claims] 1) By supporting a plurality of block molds on a carrier body and arranging upper and lower movable molds facing each other in an endless series, and driving the movable molds along a fixed frame so that the opposing parts move in the same direction. In an endless track type continuous casting machine that forms a continuous mold space, supplies molten metal to the mold space, and cools and solidifies the molten metal using a block mold to cast slabs, the above-mentioned An endless track type continuous casting machine characterized by opposed roller slides that movably clamp both width ends of the carrier body from above and below.