JPH0545922Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention enables accurate measurement of the reduction amount of a reduction device such as a reduction block or a reduction roll installed in continuous casting equipment or rolling equipment. The present invention relates to a reduction amount measuring device.

[Prior Art] For example, a conventional reduction amount measuring device attached to a casting slab reduction device will be explained with reference to FIG.
1 and 2 are comb-shaped rolling blocks that roll down the slab 3 in the thickness direction. Brackets 4 and 5 are installed on both sides in the width direction of the slab 3 of the rolling blocks 1 and 2, and are arranged vertically on the top and bottom.
Magnescale 6, which can measure in 10μm units,
Attach the measuring part 6a to the bracket 4 using the pin 7,
A scale portion 6b is vertically pivoted to the bracket 5 using pins 8.

With such a configuration, when the slab 3 is rolled down by the rolling blocks 1 and 2 of the casting slab rolling machine in order to prevent segregation and porosity from being removed from the slab 3, the brackets 4 and 5 attached to the rolling blocks 1 and 2 are also moved at the same time. Then, the distance between them is narrowed according to the amount of reduction, and the amount of reduction of the slab is measured with a magne scale 6 provided between the brackets 4 and 5.

[Problems to be solved by the invention] However, in the conventional rolling reduction measuring device described above, as shown in FIG. Middle arrow a), so there are brackets 4 on both sides,
Magnescale 6 provided through 5 indicates a measured amount larger than the actual reduction amount. Therefore, when controlling the amount of reduction in units of 10 μm, the influence of such errors is large, and accurate control of the amount of reduction cannot be performed.

In view of the above-mentioned circumstances, it is an object of the present invention to provide a rolling reduction amount measuring device that can measure the rolling reduction amount with high accuracy even when the rolling block etc. is bent during rolling. be.

[Means for Solving the Problems] The present invention has two rolling surfaces having a desired shape, and rolling the rolled material by making the rolling surfaces face each other and moving at least one of them in a direction that narrows the interval between the rolling surfaces. On at least one of the front or rear surfaces in the longitudinal direction of each rolled material of the base set of rolling down devices, arms of a required length extending from the surface in the width direction of the rolled material are arranged parallel to each other, and each arm is One end of the rolled material in the width direction is rotatably supported via a pin protruding from the rolling device, and the other end of the rolled material in the width direction is supported via a pin projecting from the rolling device through a long hole provided in the arm. The arm is attached to the arm so as to be movable in the width direction of the rolled material, and a position detector for detecting the position of the rolling device in the moving direction is provided at the projecting end of the arm, thereby forming a rolling reduction amount measuring device.

[Function] Therefore, in the present invention, even if the rolling device is bent when rolling the rolled material and the distance between the two pins that pivot the arm changes, the elongated hole provided in the arm can maintain the distance between the pins. Absorbs changes and prevents arm deflection, resulting in high rolling reduction measurement accuracy.

[Example] Hereinafter, an example of the present invention will be described based on the drawings.

FIG. 1 is an explanatory diagram of an embodiment of the present invention.
Reference numerals 1 and 2 indicate comb-shaped rolling blocks for rolling down a rolled material such as a slab 3 in the thickness direction. Rolling block 1,
On the front or rear surface of slab 3 in the longitudinal direction of 2,
Arms 9, 10 of a required length are horizontally arranged to extend on both sides of each rolling block 1, 2, and the arms 9, 10 are attached at two locations using pin supports 11, 13 and 12, 14. It is pivoted to the rolling blocks 1 and 2 by pins. Each of the two pin fulcrums 11, 1
One pin fulcrum 11, 1 among 3 and 12, 14
2 is connected to arms 9 and 10 via bearings 15 and 16.
The arms 9 and 10 are rotatably supported so that the arm longitudinal positional relationship between the pin fulcrums 11 and 12 does not deviate, and the other pin fulcrums 13 and 14 are supported by the bearing 1.
5 and 16 are fitted together and pivotally supported so as to be movable within elongated holes 17 and 18 provided in the arms 9 and 10. A magnet scale 6 capable of measuring distance in units of 10 μm is installed between the protruding ends of arms 9 and 10, a measuring part 6a is connected to pin 7 on arm 9, and a scale part 6b is connected to pin 8 on arm 10. Used to pivot vertically.

With this configuration, when the slab 3 is rolled down by the rolling blocks 1 and 2 in order to prevent segregation and porosity from being removed from the slab 3, the arms 9 and 10 attached to the rolling blocks 1 and 2 also move at the same time, and the reduction amount is adjusted accordingly. Accordingly, the distance between the arms 9 and 10 is narrowed, and the magnetic scale 6 provided between the arms 9 and 10 is used to connect the arms 9 and 10.
The amount of change in the interval, that is, the amount of reduction is measured.

In addition, if the rolling blocks 1 and 2 are bent due to the influence of rolling force and heat during rolling, the pin supports 11 and 13 that pivot the arms 9 and 10 according to the amount of deflection of the rolling blocks 1 and 2, and the distance between 12 and 14 changes. Pin fulcrums 11, 13 and 12, 14
When the distance between the pins changes, the pin supports 13 and 14 fitted with bearings 15 and 16 move freely in the elongated holes 17 and 18 provided in the arms 9 and 10, and the pins due to the bending of the rolling blocks 1 and 2 move freely. Fulcrum 11,1
3 and 12, 14, and prevents the arms 9, 10 from deflecting together with the rolling blocks 1, 2. Therefore, the arms 9 and 10 have elongated holes 17,
In order to keep the arms 9, 10 parallel within the allowable range of 18, the Magnescale 6
It is possible to accurately measure the amount of change in the interval between zeros and obtain an accurate amount of reduction.

It should be noted that the present invention is not limited to the above-mentioned embodiments, but can be applied to horizontal rolling mills, vertical rolling mills, press equipment that processes rolled materials into special shapes, etc., and the mounting position of the Magnescale and The number of units to be installed can be set appropriately, and the accuracy of the reduction amount control can be replaced by a measuring instrument with higher precision or a measuring instrument with lower precision in place of the Magnescale, and other gist of the present invention. Of course, various changes may be made within the scope of the invention.

[Effects of the invention] As described above, the reduction amount measuring device of the present invention has reduction surfaces of a desired shape, makes the reduction surfaces face each other, and moves at least one of the reduction surfaces in a direction that narrows the interval between the reduction surfaces. In a set of two rolling units for rolling down rolled material, on at least one of the front or rear surfaces in the longitudinal direction of each rolled material, arms of a required length extending from the surface in the width direction of the rolled material are provided parallel to each other. One end of the rolled material in the width direction of each arm is rotatably supported via a pin protruding from the rolling device, and the other end of the rolled material in the width direction is supported via a pin projecting from the rolling device. The arm is attached to a long hole provided in the arm so as to be movable in the width direction of the rolled material, and a position detector for detecting the position of the rolling device in the moving direction is provided at the projecting end of the arm, so that the rolling block, etc. during rolling can be easily moved. Since the arm can always hold a measuring device such as a Magnescale without being affected by the deflection of the rolling down device, it is possible to accurately measure the rolling down amount, and it also has various excellent features such as improved controllability of the rolling down amount. It can be effective.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of one embodiment of the present invention, FIG. 2 is an explanatory diagram of a conventional example, and FIG. 3 is an explanatory diagram of the deflection of the rolling block when the device of FIG. 2 is rolled down. In the figure, 1 and 2 are rolling blocks, 3 is a slab,
9 and 10 are arms, 11, 12, 13, and 14 are pin supports, and 17 and 18 are oblong holes.

Claims (1)

[Scope of utility model registration request] The longitudinal direction of each rolled material of a set of two rolling devices that have rolling surfaces of a desired shape and roll the rolled material by moving at least one of the rolling surfaces in a direction that makes the rolling surfaces face each other and narrows the interval between the rolling surfaces. At least one of the front or rear surfaces is provided with arms of a required length extending from the surface in the width direction of the rolled material, parallel to each other, and one end of each arm in the width direction of the rolled material is provided to protrude from the rolling device. The other end of the rolled material in the width direction is rotatably supported via a pin provided on the rolling material, and the other end in the width direction of the rolled material is attached to an elongated hole provided in the arm via a pin protruding from the rolling device so as to be movable in the width direction of the rolled material. A rolling reduction amount measuring device characterized in that a position detector for detecting the position of the rolling device in the moving direction is provided at an overhanging end of the rolling device.