JPH0744356Y2 - Mold for continuous casting - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to a continuous casting mold.

2. Description of the Related Art Conventionally, as shown in FIG. 5, a continuous casting mold is composed of a pair of long-side molds (made of copper plates) 51 and a pair of short-side molds 51 which are arranged between the long-side molds 51 so that they can move toward and away from each other. A long side mold (made of a copper plate) 52, a long side cooling box 53 and a pressing plate 54 for supporting the long side mold 51 and the short side mold 52 from behind, and one long side mold 51 with its long side cooling box 53 Through short side mold 52
Biasing means (having a spring mechanism) 55 for biasing to the side,
A width changing device 56 for changing the width of the mold, that is, the width of the slab by moving the two short-side molds 52 close to and away from each other. Then, when changing the width of the cast piece, a cylinder device in which the one long piece mold 51 is provided at four positions in the vertical and horizontal directions
57, the two short side molds 52 are moved by the width changing device 56 after being moved a little to the outside by forming a gap with the short side mold 52.

Problems to be Solved by the Invention According to the above-described conventional configuration, since only one long side mold 51 is moved when changing the width of the slab, the short side mold is inevitable.
There was a problem that the other long side mold 51 was scratched when the 52 was moved.

Then, this invention aims at providing the casting mold for continuous casting which can solve the said subject.

Means for Solving the Problems In order to solve the above-mentioned problems, a first means of the present invention is to support a pair of front and rear long side molds on a frame body via a support member and a long side cooling box so that they can be moved toward and away from each other. In addition, a pair of left and right short-sided molds are arranged between these two long-sided molds so as to be able to approach and separate from each other through a width changing device, and the respective long-sided molds are short-sided molds via a long-sided cooling box. A biasing means for biasing to the side is provided, and each of the width changing devices is provided with a separating device that separates the two long side molds from each other against the biasing means.
Further, the separating device is moved and guided by a guide member provided in the moving direction of the short side mold, and a pressing roller provided on the separating member and abutting on the inclined surface of the long side cooling box. And a displacement gauge for measuring the distance between the pair of long-side molds, which is a continuous casting mold.

In order to solve the above problems, the second means of the present invention is
The frame body supports a pair of front and rear long side molds via a support member and a long side cooling box so that they can move toward and away from each other, and a pair of left and right short side molds between these long side molds is provided with a width changing device, respectively. The respective width changing devices are provided with a spacing device for approaching and spacing the two short-side molds, and the spacing device is provided in the moving direction of the short-side mold. Displacement configured by a separating member that is moved and guided by the guide member and a link mechanism provided between the separating member and the long side cooling box, and further that measures the distance between the pair of long side molds. A continuous casting mold characterized by comprising a meter.

In the above configuration, when changing the width of the slab, that is, when changing the width of the short side mold, by the spacing device provided in the width changing device, to separate the two long side mold to form a gap between the short side mold Since it is formed, it is possible to prevent the long side molds from being scratched even when the short side molds are moved.

Embodiment Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.

Reference numeral 1 denotes a support frame body (support member) having a rectangular shape in plan view for supporting the continuous casting mold 2, and a pair of front and rear first girder members 3 and end portions of both the first girder members 3 are connected to each other. A pair of left and right second girder members 4 and each first girder member 3 along the second girder member 4.
And support rods 5 protruding from both sides.
The mold 2 is composed of a pair of front and rear long-side molds 6 and a pair of left and right short-side molds 7 arranged between the long-side molds 6, and the long-side mold 6 includes a long-side cooling box 8. It is movably supported in the front-rear direction by each of the support rods 5 through.
Further, each short-side mold 7 has a width changing device 10 supported by the second girder member 4 via a pressing plate 9 attached to the back surface thereof.
Are supported by each other so as to be movable in the left-right direction.
Further, when the width of the short-side mold 7 is changed, the two long-side molds 6 are separated from each other by a separating device 11 provided on the width changing device 10 side.

The width changing device 10 has a pair of upper and lower ends, one end of which is connected to the upper and lower positions of the pressing plate 9 and the middle part of which is slidably inserted into the second girder member 4 via the annular guide member 4a. It is composed of a sliding rod 12 and an output / retracting drive device 13 which is interlockingly connected to the other end side of these sliding rods 12 through, for example, a screw mechanism. In addition, the separating device 11 includes the guide member 4a.
And a cylinder mechanism in cooperation with each other to press the inclined surfaces 8a formed at the ends of the two long-side cooling boxes 8 to push them apart. That is, as shown in FIG. 3, on the outer periphery of the middle portion of each guide member 4a, an annular protrusion is formed in the central portion.
A piston body 14 in which 14a is formed is fitted so as to be slidable in its axial direction, and the outer periphery of this piston body 14 has an annular recess 15a for inserting and guiding an annular projection 14a of the piston body 14 at the inner center. A cylinder body 15 in which is formed is arranged. The length of the annular recess 15a is longer than that of the annular protrusion 14a, and the first and second cylinder chambers 16 and 17 are formed on both sides of the annular recess 15a. A hydraulic pipe (not shown) is connected. Therefore, when pressure oil is supplied to the first cylinder chamber 16, the piston body 14 projects toward the short side mold 7 side,
When pressure oil is supplied to the second cylinder chamber 17, the piston body 14
Moves away from the short side mold 7 and moves away. Further, a pressing roller 18 which is connected to the tip end portion of the piston body 14 at the outer peripheral portion of each guide member 4a on the short side casting mold 7 side, and contacts the inclined surface 8a of the long side cooling box 8 on both sides thereof. The separating member 19 provided with is externally slidably fitted. Reference numeral 20 is an urging means having a spring for urging the long side mold 6 toward the short side mold 7 via the long side cooling box 8. Reference numeral 21 denotes a differential transformer type or sliding resistance type displacement meter for measuring the distance between the two long side molds 6, which is used for controlling the piston body 14 to move in and out. That is, the displacement gauge 21 can set the gap between the mold half 6 and the mold half 7 to an appropriate value.

In the above configuration, when changing the width of the cast piece, when pressure oil is supplied to the first cylinder chamber 16 to cause the piston body 14 to project, the separating member 19 also projects and the pressing roller 18 causes the long side cooling box 8 to move. The two long side molds 6 come into contact with the inclined surfaces 8a of the two and push the two long side molds 6 toward the outside, so that a gap is formed on both sides of the short side mold 7. Then, in this state, by operating the width changing device 10 to move both the short-side molds 7, the width of the slab can be changed without damaging the long-side mold 7.

Further, after the slab width is changed, pressure oil may be supplied to the second cylinder chamber 17 to retract the piston body 14 into the cylinder body 15 and move the pressing roller 18 to the outside. Of course, the long side mold 6 is automatically urged by the urging means 20 to automatically form the short side mold 7.
It is pressed and urged to the side and returned to its original position.

In this way, the cylinder mechanism is used as a guide member of the width changing device 10.
Since it is provided integrally with 4a, the device can be made compact.

By changing the inclination angle of the inclined surface 8a of the long side cooling box 8, the distance between the long side molds 6, that is, the pressing force between the molds 6 and 7 is adjusted without changing the stroke amount of the piston body 14. can do.

Next, a second embodiment will be described with reference to FIG. In the first embodiment, the pressing roller 18 presses the inclined surfaces 8a at both ends of the long side cooling box 8 to separate the long side molds 6 from each other. In the above, the long side molds 6 are made to approach and separate from each other by the link mechanism.

That is, as shown in FIG. 4, the separating member 19 connected to the tip of the piston body 14 and the end of each long side cooling box 8 are connected via the link body 31 and the connecting pin 32, respectively. It was done.

Therefore, similar to the first embodiment, the piston body 14
If the member is projected with respect to the cylinder body 15, the separating member 19
Moves to the side of the short side mold 7 and the two long side molds 6 are separated from each other. Further, by moving the separating member 19 to the outside, both long side molds 6 can be urged toward the short side mold 7.

Even in this case, the biasing means 20 having the spring mechanism is provided in order to reliably perform the biasing operation of the long-side mold 6 toward the short-side mold 7.

Further, in the above configuration, a load cell (not shown) such as a load cell is provided in the middle of the link body 31, and the pressing force between the molds 6 and 7 can be adjusted via this load cell.

As described above, according to the configuration of the present invention, since the device for changing the width of the short-side mold is provided with the separating device for separating the long-side molds on both sides, the width of the mold fitting on both the short sides, that is, the slab width. Since a gap is formed between the long-side molds and the short-side molds when changing, the scratches on the long-side molds can be prevented.

Further, since the separating device is provided in the width changing device of each short side mold, when a cylinder device is used for this separating device, the cylinder devices may be arranged at the left and right and in the upper and lower positions, that is, at four positions. Therefore, when trying to move both long side molds with the cylinder device in the conventional configuration,
While it requires eight cylinders on each side,
The number of installations is small and it is very economical. Further, since the long side cooling box is pushed by the separating member when the long side mold is separated, the long side mold is not directly scratched.

[Brief description of drawings]

1 to 3 show a first embodiment of the present invention,
FIG. 1 is an overall plan view of a continuous casting mold, FIG. 2 is an enlarged plan view of an essential part, FIG. 3 is a side view of a notched part of FIG. 2, and FIG. 4 is an enlarged part of a second embodiment. A plan view and FIG. 5 are overall plan views of a conventional example. 1 ... Support frame, 2 ... Continuous casting mold, 4a ... Guide member, 5 ... Support rod, 6 ... Long side mold, 8 ... Long side cooling box, 8a ... Inclined surface, 7 ... Short side mold, 10 …… width changing device, 11 …… separating device, 12 …… sliding rod, 13 …… drawing / retracting drive device, 14 …… piston body, 14a …… annular projection, 15 …… cylinder body, 15a …… annular recess, 16,17 …… cylinder chamber,
18 ... Pressing roller, 19 ... Separating member, 20 ... Biasing means.

 ─────────────────────────────────────────────────── ─── Continuation of front page (56) Bibliography Sho 62-199242 (JP, U) Japanese Patent Sho 56-39974 (JP, B2) Actual Sho 60-41312 (JP, Y2)

Claims (2)

[Scope of utility model registration request] 1. A pair of front and rear long side molds are supported by a frame member via a support member and a long side cooling box so as to be able to approach and separate from each other, and a pair of left and right short side molds are provided between these long side molds. Arranged so as to be able to approach and separate from each other via the width changing device respectively, each of the long side molds is provided with a biasing means for biasing to the short side mold side via the long side cooling box, and to each of the width changing devices, A separating device for separating the two long-side molds from each other against the biasing means is provided, and a separating member for moving and guiding the separating device to a guide member provided in the moving direction of the short-side mold. And a displacement roller provided on the separating member and abutting against the inclined surface of the long side cooling box, and further comprising a displacement gauge for measuring a distance between the pair of long side molds. Continuous casting mold. 2. A frame supports a pair of front and rear long side molds via a support member and a long side cooling box so that the front and rear long side molds can be moved toward and away from each other, and a pair of left and right short side molds are provided between the two long side molds. Each of the width changing devices is provided with a separating device that moves close to and away from each other through a width changing device, and each of the width changing devices is provided with a separating device that moves toward and away from both of the short side molds. Direction separating member is guided by a guide member provided in the direction and a link mechanism provided between the separating member and the long side cooling box, and further between the pair of long side molds. A continuous casting mold comprising a displacement meter for measuring a distance.