JPS5841662A - Guiding device for ingot in continuous casting installation - Google Patents

Abstract

PURPOSE:To improve the maintenance performance and the control accuracy of an ingot guiding device by supporting the guiding rolls in the curved part of said device on an integral support frame and adjusting roll alignment off-line. CONSTITUTION:The lower support roll groups 9 of a guiding device for a strand in a curved part are supported on a support frame 5. Upper roll groups 8 are supported on an upper frame 11 by every few pieces, and the frame 11 is supported on the sliding surface of a guiding frame 10 supported to the frame 5 and is so positioned by an adjusting device 12 as to maintain prescribed roll gaps. The frame 5 supports the rolls at a fixed fulcrum 14 and a movable fulcrum 15 on the upper and down stream sides in the curved part, and aligns the centers of the rolls off-line. Said frame adjusts the alignment of only the joints between the support roll parts 3 and horizontal parts 17 on-line. Thus the accuracy of centering of the strand guiding devices having intricate routes is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a strand guide device for a curved continuous casting facility.

Conventionally, the strand guide device of curved continuous casting equipment formed a segment structure in which multiple rolls were unitized. Due to the complexity of the work required each time, the maintenance performance and efficiency of the equipment were significantly reduced.

The present invention provides a curved section strand guide device for such curved continuous casting equipment, in which the slab guide rolls in the curved section are supported on an integrated support frame, and the roll alignment adjustment of the curved section strand guide device can be performed off-line. This invention relates to a strand guide device integrated with a curved section, which was invented with the aim of significantly improving the maintenance performance of the curved section strand guide device and improving its management accuracy.

In the device of the present invention, the inner pass line side roll (lower roll) 11 of the strand guide Rt roll is directly pivoted on the integrated the boat frame at the curved part, and the upper roll paired with the lower roll is independent every few rolls. The upper frame is pivotally supported by the upper frame, and the upper frame is supported by the support frame, and the upper frame is movable relative to the support frame in the direction of the center of curvature of the curved part. The structure allows the roll interval between the lower roll pair to be adjusted arbitrarily.

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

The curved section strand guiding device of the present invention consists of 6 drive roll pairs and 7 idle roll pairs, and the lower roll group 9 is pivotally supported on the support frame 5 directly or via a roll support beam 13. Every few upper roll groups 8 are pivotally supported by an upper frame 11, and the upper frame 11 is supported by the sliding surface of a sliding guide frame 10 supported by the support frame 5, and is equipped with a roll interval adjustment device [12]. Positioning is performed to maintain a predetermined roll spacing. This roll spacing adjustment device has a structure that can be operated by remote control or from a control panel on the machine side, so that the strand guiding device when changing the strand thickness can be used as a strand guiding device for offline mold changing work. It is possible to have a function that can be changed.

The support frame 5 is supported by a movable fulcrum 15 and fixed fulcrums 14 of an axial support type provided at two locations on the upstream and downstream sides of the curved illumination. The positions of the fixed fulcrum and the movable fulcrum can be on the upstream side, and are selected to minimize roll alignment errors due to thermal distortion. The movable fulcrum 15 has a structure capable of being slid by a slide plotter 16 in parallel to the strand flow direction at the fulcrum position, and is capable of absorbing thermal strain etc. generated in the support frame 5.

The fulcrums 14 and 15 are each easily attached to and detached from the base frame, and have a structure that allows the curved portion strand guide device to be extracted all at once.

The strand guide device of the curved part shown in the drawing is the above-mentioned 14.
．． The complicated roll centering work can be completed offline by attaching and detaching the 15 fulcrums, and online alignment adjustment is only required at the joint between the support roll part 3 and the horizontal part 17, making maintenance easy. In addition to improving work efficiency, it is possible to improve the centering accuracy of a strand guide device having a complex slab guide path by off-line centering work with good working conditions.

[Brief explanation of drawings]

The figures in the figure show examples of the present invention; FIG. 1 is a side view of the present invention, and FIG. 2 is a sectional view taken along line A--A of the same. l is the mold, 2 is the mold vibration frame, 3 is the support eye, 4 is the pace frame, 5 is the syt'-) frame, 6
1 is a doler f roll, 7 is an idle roll, 8 is an upper roll 11', 9 is a lower roll group, 10 is an upper frame sliding guide frame, 111j is an upper frame, 12 is a roll interval adjustment device, 13 is a roll support beam, 14 Hiro fixed fulcrum, 1
5 is a movable fulcrum, 16 is a slide block, and 17 is a horizontal roll. Patent applicant Shin [Ippon Steel Co., Ltd.

Claims (3)

[Claims] (1) All of the lower rolls of the curved section guide roller group except for the sabot roll area directly under the mold are pivotally supported by an integrated support frame, and the upper rolls that are paired with these lower rolls are supported every few rolls. Support for cast strands that are pivoted by a frame, and the upper frame is supported by a frame, and the earth frame is movable relative to the support frame in the direction of the center of curvature of the curved part. A slab guiding device for continuous casting equipment equipped with a curved part guide roll device for guiding casting equipment. (2) A curved part guide roll device that supports both ends of the support frame by bearings, and has one of them as a fixed fulcrum and the other as a movable fulcrum of the strand, capable of sliding in parallel in the flow direction. A slab guide device for continuous casting equipment according to item 1. (3) In the guide roll device according to claims 1 and 2 of the above patent claims, the supporting portion is easily attached to and removed from the base, and the continuous guide roll device is equipped with a curved portion guide roll device that can be added or removed all at once. Slab guide device for casting equipment.