JPS61132243A - Belt type continuous casting device for unequal width slab - Google Patents

Abstract

PURPOSE:To change a casting width even during casting and to improve productivity by supporting a short piece block group by means of a connecting mechanism to a supporting block which is moved at the speed equal to the speed of a belt by a guide rail and moving the short piece block in the transverse direction of the belt by the connecting mechanism. CONSTITUTION:The short piece block 101 is supported by the connecting mechanism 107 to the supporting block 108 which is moved at the speed equal to the speed of the belt 102 by the guide rails 109a, 109b. A cylinder 107a of the mechanism 107 is actuated to move the block 101 in the transverse direction of the belt 102. This moving mechanism may be a parallel pressing or differential pressing mechanism. The width of an ingot is made changeable even during continuous casting and productivity is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF THE INVENTION The present invention relates to a belt-type continuous casting device that allows changes in the slab during the casting process.

Conventional technology In FIGS. 6 and 7, l is a short side mold, 2 is a mold belt, 3 is a pulley, 4 is a molten metal meniscus, 5 is a slab, and 6
is a pedestal.

An annular short side mold 1 is sandwiched between both ends of the mold belt 20 facing surface.

The mold belt 2 is wound around a plurality of pulleys 3 and given tension to form a mold plane.

Pulley 3 is connected to an external power source.

The pulley 3 rotates in the direction of arrow n and drives the mold belt 2.

The short side mold 1 moves together with the mold belt 2.

Of the pair of mold belts 2, the upper one moves clockwise), and the lower one moves counterclockwise, so the two pairs of mold belts 2 move to the same side, which becomes the casting surface, and the short side mold 1 that is sandwiched by this moves to the lower left). do.

The area surrounded by the opposing surfaces of the pair of mold belts 2 and the pair of short-side molds 1 is a casting area, and the molten metal is poured into the upper right opening, and the slab 5 is pulled out from the lower left opening.

Problems to be Solved by the Invention During casting, the annular short side mold 1 is positioned at a constant distance from the end of the @-made belt 2 determined by the slab width.

Here, since surface pressure is applied to the contact surface between the short side mold 1 and the mold belt 2 to prevent molten metal from entering, it is not possible to shift the position of the short side moisturizer 1 to change the slab width.

The repositioning of the short side type 1 to change the width of the slab is carried out after stopping the pounding process and removing the surface pressure of both U and +W belts 2 that hold down the short side casting temperature 1. be exposed.

Once casting is interrupted, time is wasted until it restarts, so in order to improve productivity, it is recommended to change the position of the short side mold during production to continuously obtain slabs of different widths. There was a strong demand to do so.

Means for Solving the Problems A short side mold unit was constructed by (a) a short side block, a mouth, a support block, (c) a connecting mechanism for both of the blocks, and (2) a guide rail for the support block.

The width of the slab is determined by the position of the short side block in the width direction of the slab, but this can be easily changed by the connecting mechanism of both blocks.

(Operation) With the above-described configuration, the "function of moving the short side casting temperature in the width direction during casting", which is necessary for manufacturing slabs of non-uniform width with high efficiency, can be easily provided.

Embodiment A first embodiment shown in FIG. 1α, FIG. 1A, FIG. 2α, and FIG. 2B will be described.

Figures 1 α and 1B are plan views of the vicinity of the short-side mold, where α shows the case where the slab width is the maximum, and b shows the case where the slab width is the minimum.

Figures 2.alpha. and 2.h show the process of changing the width of the slab; α indicates the end of the wide slab, and b indicates the beginning of the narrow slab.

101 is a short side block, 101α is a preceding short side block,
1O1b is the following short side block, 102 is the mold belt, 1
05 is a slab. 107 is a connecting mechanism, 107α is a telescopic member, 10711 is a parallel link, 108 is a support block, 109cL is a guide rail for forward movement, and 109h is a guide rail for backward movement.

The front end of the short side block 101 is the leading short side block 101α
, the rear end is connected to the succeeding short side block 10]j, such a collection constitutes the short side casting temperature, and is held between the ends of the mold belt 102.

Guide rails 109α and 1095 are arranged parallel to the moving direction of the mold belt 102 and the short-side mold 101.

The support block 108 is arranged so as to be guided by the forward guide rail 109α.

Connecting members 107α and 107b connect the support block 108 and the short side block 101. Connecting member 107α
expands and contracts. There are two connecting members 107h, which have equal lengths and are attached in parallel.

These attachments are rotatable pins.

When casting a wide slab, the connecting member 107α is
Although it is contracted as shown in FIG. 3(α), when a narrow slab is being cast, the connecting member 107α is extended as shown in FIG. 3(h).

Since such deformation of the connecting member does not affect the position of the guide rail 109α or the end of the mold belt 102, the width of the slab 105 is reduced by the increment of the distance between the short side block 101 and the guide rail 109α. becomes.

When changing the width of the slab without interrupting casting, the short side block 101 is moved to a predetermined position by the above-mentioned adjustment before being clamped by the mold belt. FIG. 4(α) shows this state. When moving forward from this position, the slab width B in the preceding short side block 101α changes to the slab width B in the short side block 101.

The short side mold unit (short side block, support block, connecting member) that has reached the end of the casting area is moved by the robot installed there to a position where it is guided by the backward guide rail 109b.

Then, the short side mold unit moves backward along the backward guide rail 109b, reaches the upstream end, and is returned to the position guided by the forward guide rail 109α by a robot also installed there.

In this way, the short side mold unit can be used repeatedly.

Alternatively, an annular guide rail parallel to the running track of the short side block 101 may be provided.

A second embodiment shown in FIG. 3α and FIG. 3b will be described.

3a and 6 are plan views of the vicinity of the short-side mold, where α shows the case where the slab width is large, and b shows the case where the slab width is small.

201 is a short side block, 201α is a preceding short side block,
201b is the following short side block, 202 is the mold belt, 2
05 is a slab.

207 is a connecting mechanism, 207α is a telescopic member, 207b is a feeding member, 208 is a support block, 209α is a forward guide 9 rail, and 209 is a reverse guide 9 rail.

The only difference from the first embodiment is the connection mechanism.

The telescopic member 207α is a feed screw, and one end thereof is fixed to the short side block 201. A female thread that engages with the thread 207α is formed inside the feed member 207b.

The two feeding members 207b that fit into each of the two telescopic members 207α are given the same rotation by the same power source (not shown), and give the same amount of expansion and contraction to the two telescopic members 207α.

When the telescopic member 207α is contracted as shown in FIG. 3a, a wide slab is cast, and when it is extended as shown in FIG. 375, a narrow slab is cast.

The process of changing slab width without interrupting casting is the first step.
This is similar to the example.

A third embodiment shown in FIG. 4α, FIG. 4b, FIG. 5α, and FIG. 5b will be described.

Figures 4α and 4h are plan views of the vicinity of the short-side mold, where α shows the case where the width of the slab is wide, and b shows the case where the slab @ t- is gradually reduced.

Figures 5α and 6 show the change in slab width: A width, α indicates the terminal end of the wide slab, and 6 indicates the gradually decreasing part of the slab width.

301 is a short side block, 301α is a preceding short side block,
3015 is the following short side block, 302 is the mold belt, 3
05 indicates a slab.

307 is a connecting mechanism, 307α is a telescopic member, 307b is a feeding 9 member, 307C is a telescopic member, 308 is a support block,
309α is a guide rule for forward movement, and 309b is a guide rail for backward movement.

The differences from Embodiment 1.2 are the connection mechanism and the shape of the end face of the short side block. The end face shape is useful when connecting the short side blocks in a dogleg shape.

Of the two extensible members, one is 307α with only one end serving as a pin fulcrum, and the other is 307C with both ends serving as pin fulcrums. Due to this structure, the short side block 30
1 can be tilted as shown in FIG. 4b. Feeding member 3
071J has a female thread on the inside that fits into 307α.

As shown in Fig. 4α, two telescopic members 307α, 307C
A wide slab can be obtained by shrinking them equally.

As shown in FIG. 4b, when the rear elastic member 307C is extended more than the front elastic member 307a, the slab width gradually decreases.

The process of changing slab width without interrupting casting is described in Section 50.6.
Although shown in the figure, it is similar to FIGS. 2α and 6 of the first embodiment.

Effects of the Invention By configuring the short-side mold with a short-side mold unit having a slab width changing function, slabs with different slab widths can be obtained continuously without interrupting casting, and production can be improved. performance has improved markedly.

[Brief explanation of the drawing]

Figures 1α and 1b are plan views of the vicinity of the short-side mold of the first embodiment of the belt-type continuous casting apparatus for slabs of unequal width according to the present invention;
Fig. 1α shows the case where the slab width is the widest, and Fig. 16 shows the case where the slab width is the smallest. Figures 2α and 26 show the slab width changing function of the apparatuses shown in Figures 1α and 6. Figure 2α shows the end of a wide slab, and Figure 2b shows the beginning of a narrow slab. Figure 3α and 3
Figure b is a plan view of the vicinity of the short side mold of the second embodiment of the apparatus of the present invention, Figure 3α shows the case where the inside of the slab is large, and Figure 3b shows the case where the inside of the slab is small. Figures 4α and 42 are plan views of the short side of the third embodiment of the device of the present invention around the short side, and Figure 4α shows when the inside of the slab is wide, and Figure 4b shows that the inside of the slab is gradually reduced. Indicate the case. Figures 5α and 5b show the changing process of the slab in the apparatus shown in Figures 4α and 5b, Figure 5cL shows the end of the wide slab, and Figure 5b shows the reduced portion in the slab. FIG. 6 is a schematic side view of the conventional device, and FIG. 7 is a plan view taken along the line ■--■ in FIG. 101...Short side block, 102...Mold belt,
105... Slab, 107... Connection mechanism, 1
08...Support block, 109α, b...Guide rail sub-agent 3 patent attorneys who are not important documents of KAIhon Figure 1σ r=oqb Figure 2α Figure 3α Figure 3b Figure 4α Figure 4b, j Figure 5α Figure 5b

Claims (1)

[Scope of Claims] A belt that pours metal into an area surrounded by a pair of mold belts and short-side molds sandwiched by opposite ends of the belts, and is cooled by the flat surfaces of the molds to continuously cast slabs. In the type continuous casting apparatus, the short-side mold is constituted by a row in which the ends of a plurality of short-side blocks are closely connected, and the short-side mold is movable together with a mold belt sandwiching it; a side block is connected to a support block by a connecting member, at least one of the connecting members is extendable and retractable to change the distance of the short side block with respect to the support block, and the mold plane of the mold belt A belt-type continuous casting apparatus for slabs of unequal width, characterized in that a guide rail parallel to the moving direction of the short-side mold is provided close to the short-side mold, and the support block is mounted so as to be movable along the guide rail.