JPS6041320Y2 - Mold support device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a support device for a mold in continuous casting equipment, particularly curved continuous casting equipment, and more specifically, it is capable of supporting a mold so as to be able to swing in a direction perpendicular to the direction in which molten steel is poured. The present invention relates to a supporting device for a mold as described above.

In conventional continuous casting equipment, in order to center the mold and other equipment parts, the mold is fixed to the drive frame with fasteners such as bolts, and the structure does not allow movement in the direction perpendicular to the casting direction. was adopted.

By the way, slabs cast by curved continuous casting equipment are pulled out in an arc shape with the mold as the starting point, so naturally there are gaps between the inside of the mold and the slab (solidified molten steel) that correspond to the inside and outside of the arc. This results in a difference in the frictional force generated between the molds, and the above-mentioned conventional mold support device cannot balance this difference in frictional force substantially equally.

Therefore, when a particularly large frictional force acts between the mold inner surface and the slab, a seizure phenomenon occurs, which causes the solidified layer to break, resulting in large operational and equipment losses. .

The present invention has been made in order to solve the above-mentioned problems, and provides a mold support device that can swingably support the mold itself and balance the frictional forces acting on opposing surfaces within the mold approximately equally. This is what we intend to provide.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below based on the drawings.

In the drawings, reference numeral 1 designates a mold in which a cooling copper plate 2 is fitted into the inner circumferential surface of a hole through which molten steel passes, and arms 3 are provided oppositely on the left and right sides. ) is supported by being mounted on a drive frame 4 connected to the

By the way, as explained above, the arm 3 was conventionally fixed to the drive frame 4 with bolts, etc., but the present invention is designed to prevent the arm 3 from acting against external force, that is, the frictional force between the molten steel and the inner surface of the mold that occurs when drawing the molten steel. In response, a support structure is adopted that can swing in a direction perpendicular to the casting direction A.

That is, FIG. 2 is a vertical side view showing an example of the specific configuration, and 5 in the figure is a support mounted on the drive frame 4, and the upper surface of the support 5 has a gently curved surface. 6 is formed, and a partition plate 7 is erected at the center thereof to divide the spiritual curved surface 6 into two equal parts.

Reference numeral 8 denotes a casing having a rotational curved surface 9 corresponding to the spiritual curved surface 6 of the support 5, and its both edges are fixed to the drive frame 4 with fasteners 10 such as bolts and nuts.

That is, an equal space a is formed on the left and right sides by the support body 5 and the casing 8, and after inserting the arm 3 having a bifurcated tip into this space a, the upper and lower surfaces of each of the arms 3 are It is supported via a rolling bearing 11, and furthermore, springs 12 are interposed in spaces on both sides of each arm 3, respectively.

The spring constant of the spring 12 is appropriately determined depending on various conditions such as the weight of the mold and the magnitude of frictional force.

Further, the support body 5 can be formed in advance, for example, integrally on the upper surface of the drive frame 4. Furthermore, the arm 3 can be made into a single structure, and the partition plate 7 of the support body 5 can be formed to accommodate this.
There is no problem even if a structure is adopted in which the roller bearing 11 is eliminated and a slider is inserted instead of the rolling bearing 11.

As described above, the mold support device of the present invention has a support body having a gentle curved surface placed on the drive frame, and arms that are opposed to each other in the left and right direction around the outer periphery of the mold are slid or rolling members on this curved surface. Since the mold is mounted on the support plate and is further equipped with a spring that applies force to keep the mold in the neutral support position at all times, the mold can swing in the direction perpendicular to the casting direction A, and the Even if the difference in frictional force that occurs when drawing molten steel becomes large, the arm will move to the side where the frictional force is greater to the point where it suspends with the spring force, and this movement will automatically reduce the difference in frictional force, making it possible to This has a remarkable effect of preventing accidents caused by the occurrence of burn-in.

It goes without saying that once the unbalance of the frictional force is eliminated, the spring force returns to the neutral point.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, with FIG. 1 being a longitudinal sectional front view and FIG. 2 being a longitudinal sectional side view of the arm support. 1 is a mold, 3 is an arm, 4 is a drive frame, 5 is a support, 6 is a front surface, 8 is a casing, 11 is a rolling bearing, 12 is a spring, and a is a space.

Claims (1)

[Scope of utility model registration request] A casing that forms a predetermined space with a supporting body having a gently convex curved surface and a supporting body having a concave curved surface corresponding to the convex curved surface, which is placed on the drive frame, and A sliding or rolling member interposed between the support body and the casing and the arm, respectively, so that the arm 1, which is disposed opposite to the arm, is movable along the convex curved surface and the concave curved surface, and a sliding or rolling member that supports the arm. A mold support device for continuous casting equipment, characterized in that it is equipped with a spring for returning to a neutral point.