JPH07164036A - Method and device for caliber shift of roller guide - Google Patents

Abstract

PURPOSE:To make the original point adjusting operation of a roller guide unnecessary by measuring a caliber width according to a moving amount from the original point of the roller guide, and finding the center position of the caliber according to the measured caliber width and the moving amount from the original point. CONSTITUTION:When changing a rolling size, a roller guide A is allowed to move from the left end of a rolling roll R to the right end of it, and the presence or the absence of calibers C1 to C5 is measured by a measuring unit 2. Based on this caliber position data and the moving amount of the roller guide A, the width and the center of the caliber, are measured. In the measuring process, during a flat surface where the caliber of the rolling roll R, is not provided, is detected, an ON signal is outputted to a controller, and an OFF signal is outputted in the caliber part by the measuring unit 2. Also, the widths and the centers of the calibers C1 to C5, are stored, and the roller guide A is aligned with the centers of calibers C1 to C5, if necessary.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention accurately aligns a roller guide with any one of a plurality of calibers provided on a rolling roll when changing the rolling size of the roller guide according to the rolling size change. Caliber shift method to do.

[0002]

2. Description of the Related Art Conventionally, as a technique for guiding a rolled material by changing a rolling size of a roller guide in accordance with a changing rolling size, there is one disclosed in Japanese Patent Laid-Open No. 57327/1993.

According to this publication, every time a roller guide provided on the rest bar so as to be able to move parallel to the axis of the rolling roll is newly attached to the rolling roll, the roller guide is placed at the origin corresponding to a predetermined caliber center of the rolling roll. After manually shifting to the reset position and resetting the origin, the origin reset position is used as the origin, and one of the selected calibers is selected according to the value manually input to the controller beforehand. There is disclosed a so-called caliber shift technique in which the center of the roller guide is moved to the center of the position to perform the position adjustment (shift) and the interval between the guide rollers is adjusted.

[0004]

In a roller guide that moves the rest bar in parallel with the axis of the rolling roll to perform the caliber shift, when the rolling roll is replaced to change the rolling size, the roller guide also has a new rolling size. Generally, the replacement work is also performed. If you install a new roller guide on the rest bar to replace the roller guide,
Since the origin of the attached roller guide is lost, the positional data between the roller guide and the centers of the calibers provided on the rolling rolls are also lost. Therefore, after the replacement, it is necessary to newly set the mutual positional relationship between the center of the plurality of calibers and the origin of the roller guide in the control device. For that purpose, first, the origin is reset, and then the position of each caliber is stored in the controller based on this origin. If this origin reset operation is not performed correctly, the center of the roller guide will not be aligned with the center of the caliber even if the caliber shift of the roller guide is performed, which will cause a decrease in the dimensional accuracy of the product. . According to the conventional method of resetting the origin, the roller guide is manually moved to the center of the specified caliber, which is the origin reset position, and it is confirmed visually that the center of the roller guide is aligned with the center of the caliber. After that, the origin reset button is pressed and the origin position required for positioning is stored in the control device. Also, data of the position of the center of the caliber for caliber shift,
The data of the distance between the guide rollers required for the caliber has been manually input to the control device using a digital switch or the like. In the above-mentioned conventional method,
Since the center of the roller guide must be visually aligned with the center of the specified caliber in order to reset the origin, there is a problem that it requires skill and time to adjust the origin. Misalignment is likely to occur in the alignment, and all deviations will occur in the subsequent caliber shift, which causes a decrease in dimensional accuracy of the rolled product. In addition, in the method of inputting each data of the center position of the caliber and the interval of the guide roller to the control device with a digital switch or the like, it is easy to make an input error, and if an input error occurs, the caliber shift will not be performed correctly. Dots occur. An object of the present invention is to eliminate the need for the work of adjusting the origin of the roller guide, which has to be performed every time the roller guide is newly attached to the rolling roll. Another object of the present invention is to eliminate the erroneous input of caliber data by eliminating the need to manually input the caliber data of rolling rolls.

[0005]

A roller guide caliber shift method of the present invention is a method of calibrating at least one roller guide to at least one caliber of a plurality of calibers provided on a rolling roll. , A predetermined position before moving the roller guide is set and stored as an origin, and first, the roller guide is moved parallel to the axis of the rolling roll, and the amount of movement from the origin to the moving position and this movement. Based on the position data of the caliber obtained along with, the caliber width and the center position of the caliber are measured and these measured data are stored, and then the roller guide is moved to an arbitrary caliber and stored. Align the center of the roller guide with the center of this caliber and memorize the distance between the guide rollers to the caliber width. It is intended to adjust it Align.
"Adjusting the guide roller interval according to the stored caliber width" means not only adjusting the interval equal to the caliber width, but also adjusting it slightly wider or narrower than the caliber width. It refers to the optimum relationship with the width. The caliber shift device for a roller guide of the present invention is a device for calibrating at least one roller guide to at least one caliber of a plurality of calibers provided on a rolling roll, and a shaft of the rolling roll on a rest bar. A roller guide that is provided so as to be movable parallel to the roller guide, and a roller guide that is attached to this roller guide. It is possible to control the measuring device for obtaining the position data of the caliber and the movement amount of the roller guide. , A controller capable of measuring the caliber width and the center position of the caliber based on the movement amount and the caliber position data and storing these data. The guide roller interval can be adjusted according to the caliber width measured by the control device, and the center of the roller guide can be positioned at the measured caliber center. "Adjustable guide roller spacing according to caliber width" means that the spacing can be adjusted not only equal to the caliber width but also slightly wider or narrower than the caliber width. It means that the optimum relationship with can be set.

[0006]

[Function] Before moving the roller guide, a predetermined position is stored as the origin, then the roller guide is moved, the caliber width is measured based on the movement amount from the origin, and the measured caliber width and the movement from the origin are moved. Since the center position of the caliber can be calculated based on the amount, not only the origin of the roller guide necessary for the caliber shift is automatically reset, but also the caliber width, center position, and guide roller interval data are automatically You can ask.

[0007]

Embodiments of the present invention will be described with reference to the drawings.
First, an embodiment of an apparatus used in the roller guide caliber shift method of the present invention will be described. As shown in FIGS. 1 to 3, the roller guide A includes a measuring device 2 at the center of the guide box 1 and at a position immediately near the rolling roll R. The guide box 1 is provided on the rest bar 3 so as to be movable in a direction parallel to the axis of the rolling roll R as the hydraulic cylinder 4 expands and contracts, and the amount of movement is the amount of movement incorporated in this hydraulic cylinder. It is output from a detection encoder (not shown) to a control device (not shown) and controlled by this control device. A guide roller 6 is rotatably supported on an eccentric shaft portion (not shown) of a pair of support shafts 5 rotatably supported on the guide box 1. Worm 5 provided at the upper end of support shaft 5
Pinions 7 of rotatably provided on the guide box 1 and having opposite screws mesh with each other. Pinion 7
It can be rotated by a hydraulic motor 8. Worm 5a meshing with pinion 7 according to the direction of rotation of hydraulic motor 8
Are rotated in opposite directions, the support shaft 5 rotates, and the eccentric shaft provided on the support shaft rotates, so that the interval between the guide rollers 6 rotatably supported by the eccentric shaft is adjusted. .
In this way, the operation of the hydraulic motor 8 causes the guide roller 6
The interval can be adjusted. Since the rotation amount of the hydraulic motor 8 is detected by the detector 9 and input to the control device, the control device can control the interval between the guide rollers 6.
Upon completion of the caliber shift, the roller guide A is fixed to the rest bar 3 by retracting the clamp 11 connected to the tip of the piston of the hydraulic cylinder 10.

Next, the caliber shift method of the present invention will be described. The origin reset method will be described. When a new roller guide is attached to the rest bar after the rolling rolls have been replaced due to a change in the rolling size or after the roller guide A has been removed from the rest bar 3 for maintenance of the roller guide, the newly installed roller The origin of the guide and the position data from this origin to the center of each caliber are lost. The position where the roller guide A is mounted on the rest bar 3 on one end side (position where the caliber shift amount is “0” in FIG. 4) of the rolling roll R is set in advance, and this position is stored in the control device as the origin. Keep it.

Therefore, first, the roller guide A is moved from the left end side (upper side in FIG. 1) of the rolling roll R to the right end side (lower side in FIG. 1), and the presence or absence of caliber is measured by the measuring device 2 provided in the roller guide. The width of the caliber and the center of the caliber are measured based on this caliber position data and the amount of movement of the roller guide from the encoder for detecting the amount of movement. The measuring device 2 also measures the caliber number in the process of the movement.

While the measuring device 2 detects the flat surface of the rolling roll R on which the caliber is not provided during the measurement process, "there is no caliber on the outer periphery of the rolling roll".
The ON signal that means that is output to the control device, and the OFF signal that means that "the caliber exists on the outer circumference of the rolling roll" is output to the control device at the caliber portion. FIG. 4 (A) shows a waveform diagram of ON / OFF signals output from the measuring device 2 by measuring from the left end side to the right end side of the rolling roll R.
(10) shows the position where the ON / OFF signal is switched. FIG. 4B shows a caliber, and there are five calibers from the left end to the right end, and "C1" to "C" are provided on each of the first caliber at the left end to the fifth caliber at the right end.
5 "and reference numerals" R1 "to" R6 "are given to the outer peripheral portions of the caliber-free rolling rolls. FIG. 4C shows the caliber shift amount,
Numbers 100 and 40 from the origin "0"
0, 500, 750, ... Show the movement amounts from the positions (1) to (10). The correlation between the signal waveforms shown in FIG. 4, reference numerals “C1 to C5” and “R1 to R6” indicating the caliber and the outer peripheral portion of the caliber-free rolling roll, and the caliber shift amount will be described. The roller guide A and the measuring device 2 move from the left end R1 to the right end R6 of the rolling roll R in the right direction in FIG.
In the process of moving up to
The ON signal is output up to the position (1) shown in, the caliber shift amount changes from the origin “0” to “100”, and the first caliber C1 corresponds to the position (2) beyond the position (1). Therefore, the OFF signal is output, and the caliber shift amount at the position (2) becomes “400”,
Further, from the position (2) to the position (3), the ON signal is output because the portion R2 having no caliber corresponds, and the caliber shift amount at the position (3) becomes "500", which is shown in the upper and lower parts of FIG. Since the correspondence relationship is established and the fifth caliber C5 corresponds from the position (9) to the position (10), an OFF signal is output and the position (1
The caliber shift amount in 0) is "14400", and when the position (10) is exceeded, the ON signal is output because the portion R6 having no caliber corresponds.

Here, a method for measuring the width of the caliber and the center of the caliber will be described with reference to a specific example. The movement amount of the roller guide A accompanying the caliber shift, that is, the caliber shift amount is sequentially detected by the encoder and is input to the control device. Therefore, the position of the signal of the measuring device 2 from ON to OFF or from OFF to ON, that is, The positions (1) to (10) may be stored in the control device based on the caliber shift amount. For example, the width of the third caliber C3 and the caliber center position are: width of the caliber C3 = 1000-800 = 200 center of the caliber C3 = (1000-800) / 2 + 80
It can be measured as 0 = 900. The center of the caliber C3 corresponds to a caliber shift amount of "900". Therefore, by moving the roller guide from the origin “0” to the position where the caliber shift amount is “900”, the center of the roller guide coincides with the center of the caliber C3, and the interval between the guide rollers 6 is measured. Width "20
Adjust according to "0". After the caliber shift is completed, the roller guide A is clamped to the rest bar 3 by the clamp 11.
Fixed to.

The widths and centers of the calibers of the calibers C1 to C5 are sequentially obtained in this manner, and the roller guide A may be aligned with the centers of the calibers C1 to C5 as needed. When the roller guide moves to an arbitrary caliber, if the order of calibers is specified beyond the number of calibres measured by the controller, the caliber shift does not occur. For example, if the number of measured calibers is 6,
Even if the seventh caliber is instructed to perform caliber shift, caliber shift cannot be performed.

Roller guides for all calibers C1 to C5
The caliber shift may be performed on each of the above, or the caliber shift may be performed by setting a range such as caliber C3 to C5. In the above example, the roller guide was previously moved only one way with respect to the rolling roll to measure the caliber width and the caliber center, but the roller guide may be reciprocally moved for more accurate measurement. The number of roller guides to be calibrated is not limited to one, and may be two or more.

[0014]

According to the present invention, even if the roller guides are replaced due to a change in the rolling size, the center of the roller guides and the center of the rolling rolls are aligned each time, and the origin of the guide shift position is aligned. Not only is not necessary,
It is possible to perform the origin reset with stable accuracy without requiring skill for this origin alignment. Further, according to the present invention, the data of the width and center position of the caliber of the rolling roll can be automatically obtained along with the movement of the roller guide, so that a data input error can be prevented and a defective product can be prevented. can do.

[Brief description of drawings]

FIG. 1 is a plan view of a roller guide.

FIG. 2 is a front view of a roller guide.

FIG. 3 is a right side view of a roller guide.

FIG. 4 is a diagram showing a relationship between an ON / OFF signal output from a measuring device and a caliber shift amount, (A) is a waveform diagram, (B) is a diagram showing a caliber, and (C) is a caliber shift amount. Indicates.

[Explanation of symbols]

 1 guide box 2 measuring device 3 rest bar 4 hydraulic cylinder 6 guide roller 8 hydraulic motor 9 detector 10 hydraulic cylinder A roller guide C1 caliber C2 caliber C3 caliber C4 caliber C5 caliber R rolling roll R1 outer circumference of rolling roll R2 outer circumference of rolling roll Part R3 Rolling roll outer periphery R4 Rolling roll outer periphery R5 Rolling roll outer periphery R6 Rolling roll outer periphery

Claims (2)

[Claims] 1. In a method of calibrating at least one roller guide to at least one caliber of a plurality of calibers provided on a rolling roll, a predetermined position before moving the roller guide is set as an origin in advance. First, the roller guide is moved in parallel with the axis of the rolling roll, and the caliber is moved based on the amount of movement from the origin to the movement position and the position data of the caliber obtained with this movement. The width and the center position of the caliber are measured and these measurement data are stored, and then the roller guide is moved to an arbitrary caliber and the center of the roller guide is aligned with the memorized center of the caliber. Also, the caliber shift of the roller guide is characterized in that the interval between the guide rollers is adjusted according to the stored caliber width. Method. 2. A device for calibrating at least one roller guide to at least one caliber of a plurality of calibers provided on a rolling roll, wherein the rest bar is provided so as to be movable parallel to the axis of the rolling roll.
A roller guide provided with a guide roller, a measuring device attached to this roller guide to obtain the position data of the caliber, and a movement amount of the roller guide can be controlled. A control device capable of measuring the caliber width and the center position of the caliber based on the position data and storing the data is provided, and the guide roller is adjusted in accordance with the caliber width measured through the control device. A caliber shift device for a roller guide, wherein the interval can be adjusted and the center of the roller guide can be positioned at the center of the caliber.