JPS63157008A - Measuring instrument for cast piece shape - Google Patents

Abstract

PURPOSE:To measure the shape of a cast piece under high-temperature and high-humidity environmental conditions by allowing a contact arm which rotates upward and downward in contact with the surface of the cast piece which is cast continuously according to the surface shape of the cast piece. CONSTITUTION:The contactor 13 is made to contact the top of the cast piece 6 which is cast continuously by a weight 14, so the sinks following up the small- sized recessed part 61 and large-sized recessed part 62 of the cast piece 6 which moves as shown by an arrow F. Further, the contact arm 12 rotates downward around a rotating shaft 9 and a rotary arm 15 rotates upward, so a movable pin 17 extends and a displacement gauge 16 generates an electric signal corresponding to the expansion of the movable pin 17. The electric signal generated by the displacement gauge 16 is amplified 19 to record the recessed part 61 and recessed part 62 on a recorder 20. Further, when the surface of the cast piece 6 becomes flat, the contactor 13 moves up, the rotary arm 15 rotates downward, and the movable pin 17 contracts, consequently, the displacement gauge 16 generates an electric signal corresponding to the contraction of the movable pin 17 and the signal is amplified 19 and then recorded 20.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a slab shape measuring device for measuring the shape of slabs that are continuously cast in gj.

``Prior Art'' In continuous casting equipment, as shown in FIG. By passing through and being continuously drawn out as slab 6,
The slab 6 is continuously cast. As shown in FIG. 3, the upper part of the slab 6 is supplied with slag 7 mainly composed of Cab, SIO□, etc. Vibration is given in the direction.

The slag 7 intermittently flows into the gap G between the cast member 5 and the slab 6 as the cast member 5 vibrates, and plays the role of a lubricant. On the surface of the slab 6, in addition to approximately regular horizontally striped small portions 61 based on the vertical vibration of the cast member 5 and the composition of the slag 7, irregular large portions 61 are formed on the surface of the slab 6 as shown in FIG. A shaped recess 62 may occur,
In order to improve the quality of the slab 6, efforts are being made to eliminate the large four parts 62. Behavior of slug 7 and large recess 62
It is clear that there is a close relationship between the two, and the large recess 62 is caused by a large amount of slag 7 flowing into the gap G for some reason. Conventionally, it has been considered to contact the surface of the slab 6 with a displacement sensor that measures the shape of the slab 6 in order to ascertain the state of occurrence of the large recess 62. In addition to the extremely high temperature, the slab 6 is sprayed with cooling water to ensure good casting, so it is in a high temperature and humid environment, and it is difficult to find a displacement sensor suitable for such environmental conditions. I couldn't.

"Problems to be Solved by the Invention" The present invention has been made to solve the above problems, and it provides a slab that can measure the shape of a slab under high temperature and humid environmental conditions. The purpose is to provide a shape measuring instrument.

"Means for Solving the Problems" According to the present invention, there is provided a support member disposed on at least one side of a continuously cast slab, and a slab rotatably supported by the support member. a rotation shaft having an inner shaft portion extending above the slab and an outer shaft portion extending outside the slab;
A contact arm having one end fixed to the inner shaft of the rotating shaft and the other end contacting the surface of the slab, a rotating arm having one end fixed to the outer shaft of the rotating shaft, and the rotating arm. Provided is a slab shape measuring instrument characterized by comprising a displacement sensor disposed so as to be in contact with the other end of the arm.

"Operation" According to the above configuration, the contact arm is brought into contact with the surface of the slab to be continuously cast, so that the contact arm is rotated downward -E according to the surface shape of the slab, and the contact arm is rotated downward through the rotation axis. As the rotating arm is rotated, the shape of the slab is measured by a displacement sensor placed in contact with the rotating arm. The shape of is measured.

"Example" Next, an embodiment of the present invention will be described with reference to FIG.

A support member 8 having a bifurcated portion 81 on the upper part is disposed on both sides of the slab 6, and a rotation shaft 9 is rotatably supported by the front support member 8 with extremely low friction. The 0 rotation axis 9 is
It has an inner shaft portion 10 extending above the slab 6 and an outer shaft portion 11 extending outside the slab 6.
0 has a contact arm 12 fixed at one end thereof.

The other end of the contact arm 12 is in contact with the slab 6 via a contact 7'13, and a weight 14 is mounted on the top of the contact 13.
It is equipped with One end of a rotating arm 15 is fixed to the outer shaft portion 11, and a displacement meter 16 is disposed in contact with the other end of the rotating arm 15. The displacement meter 16 has a movable bin 17 and generates an electrical signal of a magnitude corresponding to the displacement of the movable bin 17, and a differential transformer or other displacement-to-electrical signal converter can be used. The electric signal generated by the displacement meter 16 is sent to an amplifier 19 via a lead wire 18, and a recorder 20 is connected to the tIi1g device 19, and the shape of the slab 6 is recorded on a recording paper 21. Ru.

Cable 22 for connecting recorder 20 to amplifier 19
is selected to have an arbitrary length, so that the behavior of the slug 7 in FIGS. 2 and 3 and the shape waveform 23 recorded on the recording paper 21 can be simultaneously compared in the remote observation room 24. It is also possible to do so. Further, it is also possible to surround the displacement meter 16 and the amplifier 19 with a shielding plate 25.

The slab 6 is moved in the direction of arrow F by rolls 26, 27, 28.

Made by r! In the above configuration, since the contact 13 is in contact with the weight 14 on the continuously cast slab 6, it follows the small recess 61 and the large recess 62 in the slab 6 moving in the direction of the arrow. The contactor 13 sinks downward, the contact arm 12
The movable bottle 1 rotates downward around the rotation axis 9, and the rotation arm 15 rotates upward due to the rotation of the rotation axis 9.
7 extends to the right in the figure, and an electric signal corresponding to the extension of the movable bottle 17 is generated in the displacement meter 16. The electric signal generated in the displacement meter 16 is amplified by one amplifier, and
A small recess 61 and a large recess 62 are recorded. ! ,
In addition, when the surface of the yI piece 6 returns to a flat shape, the contact 13 floats upward 5, and the rotating shaft 9 rotates clockwise, causing the rotating arm 15 to rotate downward and move the movable bin. 17 contracts to the left in the figure, an electric signal corresponding to the contraction of the movable bottle 17 is generated in the displacement meter 16, amplified by the amplifier 19, and then recorded in the recorder 20.

The upper part of the slab 6 is under a vicious cycle of high temperature and humidity, but the displacement gauge 1
6 is in a good environment away from the top of the slab 6,
Reliable shape measurements are performed. It is relatively easy to make the contact arm 12 disposed around one piece 6 and the rotation shaft 9 sufficiently withstand the vicious cycle of high temperature and humidity by appropriately selecting the material and dimensions. It is easy to use, and good measurement results can be obtained from the shape measuring instrument as a whole.

"Other Embodiments" The present invention is not limited to the details of the structure shown in the description of the above embodiments and the drawings.
can also be replaced by a spring. Further, the rotation shaft 9 may be rotatably supported by a cantilever support structure with only one support member 8, and the displacement meter may be replaced with a displacement sensor of another type.

"Effects" As described above, the slab shape measuring device of the present invention has the above configuration, and the displacement sensor using the electric component is connected to the top of the slab using the contact arm, the rotating shaft, the rotating arm, etc. Because they are separated, there is an immersive effect in that the shape of slabs under high temperature and humid environmental conditions can be well measured.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the present invention, and FIGS.
The figure is a cross-sectional view for explaining the prior art. 61. , slab, 8.2. Support member, 9111 Rotating shaft, 10, Inner shaft portion, 11, Outer shaft portion, 1
2. ,. Contact arm, 15. ,,rotating arm, 16. ,,displacement meter.

Claims (1)

[Claims] A support member disposed on at least one side of the slab to be continuously cast, an inner shaft portion rotatably supported by the support member and extending above the slab, and an inner shaft portion extending outside the slab. A rotating shaft having an outer shaft portion, a contact arm having one end fixed to the inner shaft portion of the rotating shaft and the other end contacting the surface of the slab, and one end fixed to the outer shaft portion of the rotating shaft. What is claimed is: 1. A slab shape measuring device comprising: a rotary arm having a rotatable shape, and a displacement sensor disposed so as to be in contact with the other end of the rotary arm.