JPS6019765Y2 - Rolling instrument protection device - Google Patents

Description

[Detailed description of the invention] This invention relates to a rolling instrument protection device for protecting rolling instruments such as an X-ray thickness gauge, which are irremovably attached to a rolling mill stand, from rolled materials such as strips. .

In general, in rolling mills for steel materials such as steel, torsion, and lip, rolling instruments such as X-ray thickness gauges are not directly fixed to the rolling mill stand, nor are they located close to the roll exit. However, in rolling mills that roll soft materials with low X-ray absorption rate, such as aluminum, placing the X-ray thickness gauge close to the roll exit is suitable for rolling control systems that require quick response. do.

From this point of view, in conventional aluminum rolling mills, the X-ray thickness gauge was fixed directly to the rolling mill housing and placed close to the roll outlet. When the rupture occurs,
The strip jumps up and collides with the X-ray thickness gauge, causing
This method has the drawback of causing an accident in which the detector of the wire thickness meter is damaged.

The purpose of this invention is to alleviate the above-mentioned drawbacks, and to provide a rolling instrument protection device that protects rolling instruments such as X-ray thickness gauges from being damaged by the rolled material even if the material to be rolled, such as a strip, breaks. It is to provide.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

In the figure, reference numeral 1 denotes a rolling mill stand, and inside the rolling mill stand 1, an upper reinforcing roll 2, an upper working roll 3, a lower working roll 4, and a lower reinforcing roll 5 are arranged one above the other.

Further, an X-ray thickness gauge detector 7 supported by a support frame 6 is disposed within the outlet opening 1A of the rolling mill stand 1.

Also arranged in the outlet opening IA of the rolling mill stand 1 is a rolling instrument protection device 8 according to this invention.

This device 8 includes an elevating body 81 that moves forward and backward from diagonally above the upper work roll 3, and a rod-shaped first member 82 that is fixed to the lower end of the elevating body 81 and extends parallel to the pass line P.
a movable link 83 pivotally attached to the first member 82 and aligned on the same line as the first member 82; a fixed link 84 pivotally attached to the movable link 83 and fixed to the support member 85; I am admonishing you.

The elevating body 81 is a member that also serves as a known cobble guard for preventing the scattering of gland oil, and is guided by a fixed guide 9 and a guide roller 10, and moved by a cylinder 11 from the solid line position to the two points shown in the figure in the direction of the arrow A in the figure. The lottery is moved to the dashed line position.

The movable link 83 pivotally connected to the first member 82 by a pin P□ is connected to a pair of pipes 83A, 83 separated from each other.
B, with the inner diameter of a mutually smooth 83A pipe and 83
The outside diameter of the B pipe is connected using a spline universal joint.

The pipe members 83A and 83B and the sleeve 83C are configured so that their lengths can be adjusted to some extent, and the movable link 83
The length can be changed freely.

A fixed link 84 is pivotally connected to one end of the pipe member 83B by a pin P2, and the fixed link 84 is fastened to a support member 85 by a shaft B.

The support member 85 is removably fastened to the frame 12 by a fastening shaft 86 with a rotating lever 86a, and is supported by the rolling mill stand 1 via the frame 12.

When the first member 82, the movable link 83, and the fixed link 84 are in the solid line position shown in the figure, they are aligned in a straight line when viewed from above, and these pairs are spaced apart at a predetermined interval in the direction perpendicular to the plane of the paper in the figure. At least two or more sets are arranged.

During operation of the rolling mill, the elevating body 81, the first member 82, the movable link 83, and the fixed link 84 are located below the X-ray thickness gauge detector 7, as shown by the solid line in the figure, and the first member 82 and the movable Since the lower side of the X-ray thickness gauge detector 7 is guarded by the link 83 and the fixed link 84, even if the strip etc. breaks and jumps up violently, the strip will protect the first member 82 and the movable It only collides with the rod-shaped body made up of the link 83 and the fixed link 84, but does not collide with the X-ray thickness detector 7.

When the operation of the rolling mill is stopped and the X-ray thickness gage 7 is inspected, when the elevating body 81 is pulled up to the position shown by the two-dot chain line in the figure by the cylinder 11, the movable link 83 moves as shown by the two-dot chain line in the figure. Since it is rotated, there is no obstruction under the X-ray thickness detector 7, so that the X-ray thickness gauge 7 can be reached from below and at the same time can be seen clearly. become.

As described above, according to this invention, even if the strip etc. breaks, it is possible to protect rolling instruments such as an It is possible to eliminate a large amount of damage (i.e., a large amount of lost time and lost money due to long rolling mill downtimes and repairs and replacements of X-ray thickness gauges, etc.), making a significant contribution to reducing manufacturing costs and improving production efficiency. can be eliminated.

[Brief explanation of the drawing]

The accompanying drawings are schematic diagrams showing the configuration of an embodiment of this invention.

Claims (1)

[Claims for Utility Model Registration] A rolling instrument protection device for protecting a rolling instrument such as an X-ray thickness gauge fixed to a rolling mill stand from a material to be rolled such as a strip, the device comprising: an exit side of the rolling mill stand; an elevating body for preventing cooling liquid from scattering, which is a plate body that is provided above the rolling gauge at a position and has a width that extends approximately to the width of the upper work roll, and is driven up and down from diagonally above the upper work roll; ,. When the tip of the lifting body is fixed to the lifting body and the lifting body is in a position close to the upper work roll, it is located below the rolling gauge, and when the lifting seal is in a position retracted from the upper work roll, the a rod-shaped first member that rises near the rolling gauge; a tip of which is pivotally connected to the first member; and when the elevating body is in a position close to the upper work roll, the rod-shaped first member is located below the rolling gauge; a movable link that is rotated in a substantially vertical direction when the elevating body is in a position retracted from the upper work roll; and a movable link that is pivotally connected to the rear end of the movable link and is always provided at a position below the rolling gauge. It has a fixed link, and a support member that supports the fixed link and is attached to the rolling instrument stand so as to be detachable in the pass line exit direction, the first member, the movable link, and the fixed link. A rolling gauge protection device characterized in that a plurality of links are provided at positions separated by a predetermined interval in the width direction of the upper work roll.