JPS6041328Y2 - Mold vibration device for curved continuous casting - Google Patents

Abstract

An apparatus 10 serves to oscillate a mold 1 for curved-type continuous casting machines, and comprises a base frame 3 detachably mounted on a structure 8, a bracket 4 secured to the base frame and, having a fulcrum corresponding to a center O1 of curvature for a path Ia of cast metal in the mold 1, an oscillation lever 2 having its one end pivotally mounted at the fulcrum to the bracket 4, and an oscillation drive lever 6, to which the other end of the oscillation lever 2 is pivotally mounted at a loading point O2. The mold 1 is detachably fixed to the oscillation lever 2 as by bolts 11 with its center O1 of curvature corresponding to the fulcrum of the bracket 4. The oscillation drive lever 2 is swingingly driven by a drive motor through a reduction gear 7, so that the mold 1 can oscillate about the center O1 of curvature.

Description

[Detailed Description of the Invention] The present invention relates to a mold vibrating device for curved continuous casting in continuous casting equipment, and particularly to a mold vibrating device applied to a mold having a small radius of curvature.

Generally, in order to prevent slabs from seizing on the mold during continuous casting, the mold itself of a curved continuous casting machine has a radius of R.
The method used was to vibrate by the stroke of the trajectory along the .

In this case, the accuracy of the vibration locus along the curved semi-IR needs to be somewhat strict in order to minimize surface flaws occurring in the slab.

Therefore, it is necessary to devise a structure or mechanism to ensure the accuracy of the trajectory along the radius R of the mold vibration, but conventional methods using a guide wheel or a method using a single lever have been put into practical use.

However, all of these methods have problems with accuracy due to wear on the guide surface, or because the fulcrum of the single lever is fixed to a part of the building structure, the position of the fulcrum of the single lever may shift due to deformation of the building. This causes problems such as making it difficult to ensure trajectory accuracy, and also has the disadvantage that maintenance of the drive mechanism, etc. must be performed in a narrow space inside the machine.

This invention was made with the aim of eliminating the above-mentioned drawbacks, and it provides a structure that can ensure the vibration accuracy of the mold over a long period of time, and also makes the entire structure sufficiently accessible outside the machine for maintenance. In particular, it is particularly advantageous for application to continuous casting equipment with a small radius of curvature.

In other words, the present invention basically has a simple structure with a single lever that ensures a complete circular trajectory, but a base frame with sufficient rigidity is provided, and a vibration lever, a fulcrum of the lever, and a vibration generating cam are mounted on this base frame. The device and drive motor are all mounted on a tower to form a unit, and this unit can be removably installed on a separate frame that is firmly supported on a concrete surface.

The present invention will be explained in detail below based on the drawings.

A mold 1 of a curved continuous casting equipment having an arc radius R has one end set at the center point 01 of the curved radius, and the other end set at the center point 0.
Point 02 on any straight line passing through 1 is the excitation point 01
It is removably installed along an arc R by bolts or the like on a mold vibration lever 2 which is installed to be able to vibrate around the center.

The vibration lever 2 is supported at a fulcrum 01 by a bracket 4 on a base frame 3, and at an excitation point 02 by a vibration drive lever 6 including a vibration generating camshaft 5. The base frame 3 together with a vibration drive device (not shown) are integrally constructed as a vibration unit.

This vibration unit is positioned on the support surfaces 8' and 8'' at the upper end of the frame 8, which is firmly installed on the concrete foundation 9, by positioning liners 3' and 3'' provided at the lower part of the base frame. 10, it is detachably attached.

In the figure, reference numeral 11 indicates a bolt that fixes the mold 1 in a removable manner.

Since the present invention is configured as described above, the present invention is particularly advantageous when the curved arc radius R of the curved continuous casting equipment is small.

In other words, the smaller the arc radius R of curvature is, the shorter the vibrating lever 2 can be, and as a result, the entire unit can be constructed more compactly.

In addition, since the vibration lever 2 has its vibration center at the center 01 of the curved arc of the continuous casting equipment, the mold 1 vibrates along the radius R of the arc, so a highly accurate arc-shaped trajectory can be obtained, and it is possible to achieve continuous casting as in the conventional method. Unlike the case where the center of vibration is provided in the center of vibration, the center of the arc of curvature is provided in the present invention itself, so there is no need to take the trouble of setting the center of the arc of curvature as in the past.

Further, it is possible to apply accurate arc vibration to the mold without causing a shift (displacement) of the center of the curved arc caused by distortion of the continuous chambers as in the conventional method.

Furthermore, by simply installing the base frame on the frame, it is not only possible to install a mold with a fixed center of the curved arc to the casting equipment, but also to repair the various mechanisms installed on the base frame in a large area other than the installation site. This has the effect of improving work efficiency.

[Brief explanation of the drawing]

The drawing is a front view showing an embodiment of the present invention. 1 is a mold, 2 is a mold vibration lever, 3 is a base frame, 4 is a bracket, 5 is a vibration generating camshaft, 6 is a vibration drive lever, 7 is a vibration drive reducer, 8 is a frame, 9 is a concrete foundation, 10 is a Kottapin, 11 is a bolt.

Claims (1)

[Scope of utility model registration request] A vibration fulcrum of a mold vibration lever that coincides with the center of the radius of curvature of the curved continuous casting equipment is provided on the base frame, one end of the vibration lever is supported by the fulcrum, and the other end of the vibration lever is connected to a vibration drive lever, A mold vibration device for curved continuous casting, characterized in that a mold vibration drive device including the vibration drive lever is provided on the base frame, and the base frame is detachably attached to the frame.