JPH0579831A - Detecting apparatus for deviated amount of position of upend coil - Google Patents

Abstract

PURPOSE:To mount a coil on a coil car having a down ender in an upend pattern without interference and to detect the deviation of the position of the coil accurately without damaging the coil. CONSTITUTION:A coil 10 is mounted on a coil car 9. Apparatus main bodies 1, which are freely moved back and forth, are arranged so as to face each other with the coil car 9 in between. Each measuring arm 2 is positioned at the tip part of each apparatus main body 1 and can be freely moved back and forth with respect to the coil 10. The arm 2 can be freely raised and brought down and has a contact piece 8, which is in conatac with the coil 10 at the tip part. A retreating-amount detector detects the backward movement of the measruing arm 2 and stops the apparatus main body 1. A distance measuring device for measuring the moving amount of the apparatus main body 1 is provided at the apparatus main body 1. This apparatus is constituted of these parts.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, the amount of positional deviation of a coil loaded up-end by a lift magnet of a ceiling crane on a coil car with a down-ender at the entrance side of a thin steel plate or strip steel continuous rolling line. The present invention relates to a device for detecting.

[0002]

2. Description of the Related Art For example, when a coil is mounted on a mandrel of a coil rewinding machine provided on the inlet side of a thin steel continuous rolling line, the coil is generally held and transported at a down end by a coil car to achieve the mounting. It In this case, since the coil is transferred onto the coil skid by the tongue of the overhead crane, the center of the coil and the center of the coil car are substantially coincident with each other, so that the mounting on the mandrel is surely achieved.

However, a loosely wound steel coil cannot be mounted on a mandrel because it cannot be maintained in a perfect circle by being deformed when it is hung at the down end by the tongue of the overhead crane and deformed. Therefore, the coil is held by the riff mag at the up-end and conveyed, and it is loaded at the up-end on a coil car with a down-ender that has a mechanism that can prevent deformation and maintain a perfect circle. It takes a means to attach it to the mandrel after the end.

In this case, in order to mount the coil on the mandrel smoothly, it is necessary to match the coil center of the up end with the center of the coil car in advance before moving the coil from the up end to the down end. For that purpose, the down ender is finely moved in the horizontal direction on the coil car, and it is necessary to measure the position of the coil as a premise of this centering.

Conventionally, as means for automatically measuring the positional displacement of such a coil, there are an optical method (non-contact type) and a mechanical method (contact type) using a transmission type sensor or the like.
As an optical method, for example, Shoukai 54-6838
There is one shown in Japanese Patent Publication No. 8. However, this optical method has a problem of dust and a problem that the coil end is easily deformed, so that it is practically difficult to apply it on site.

Further, as a mechanical method, for example, Japanese Patent Laid-Open No.
There is one disclosed in Japanese Patent Laid-Open No. 2-82311. This is done by placing a pair of touch bars facing each other on both sides of the coil, loading the coils, moving both touch bars in the coil direction, and stopping by detecting the moment when the touch bar contacts the coil with a limit switch. The position shift amount of the coil is calculated and detected based on the moving amount of.

[0007]

However, since the distance between the pair of touch bars is limited in the prior art based on this mechanical method, the coil is transported by the riff mag and loaded between the pair of touch bars. At this time, there is a problem that the coil and the touch bar interfere with each other. In order to prevent interference, it is conceivable to set the distance between the touch bars to a large value. However, this causes a problem in that the workability of the device is reduced and the installation space for the device needs to be set large.

Further, in this conventional technique, the limit switch detects the moment when the touch bar contacts the coil and stops the touch bar. Therefore, when the touch bar contacts the coil, the surface of the coil is touched. There is a risk of scratching. This is because the touch bar does not have the function of escaping the shock when it comes into contact with the coil and absorbing the impact.

The present invention was devised in view of these problems, and the coil can be loaded on the coil car with the down-ender without interfering with it, and the positional deviation of the up-end coil can be accurately performed without damaging the coil. An object is to provide a detection device.

[0010]

[Means for Solving the Problems]
The apparatus main body 1, the measuring arm 2, the retreat amount detector, and the distance measuring device 4 are mainly configured.

The apparatus main body 1 is located opposite to the coil car 9 on which the up-end coil 10 is loaded, and is movable forward and backward with respect to the coil 10 by a main body traveling air cylinder 5. The measuring arm 2 is located at the tip of each apparatus main body 1 and can be moved back and forth with respect to the coil 10 by the measuring arm 2 traveling air cylinder and can be raised and lowered by the measuring arm 2 raising and lowering cylinder. To coil
It has a contactor 8 for contacting with 10. The backward movement detector detects the backward movement amount of the measuring arm 2 and stops the main body traveling air cylinder 5. The distance measuring device 4 is provided in the device body 1 to measure the amount of movement of the device body 1.

[0012]

The operation of the present invention will be described with reference to FIGS.

First, the coil 10 is hung by a riff mag and conveyed, and loaded on the coil car 9 at an up end. At this time, the pair of measuring arms 2 facing each other can be prevented from interfering with the loaded coil 10 by setting the measuring arm raising / lowering cylinder 7 in a standing posture to set a large distance between them. 2).

After the loading of the coil 10 is completed, the measuring arm 2
While being tilted to the original horizontal posture, it moves to the forward limit position by the measurement arm traveling air cylinder 6. Next, the apparatus main body 1 is coiled by the main body traveling air cylinder 5.
Running toward 10, the contactor 8 at the tip of the measuring arm 2 contacts the coil 10 (FIG. 3). At this time, since the contactor 8 is rotatable, it is rotated in the direction in which the force is applied by the force applied when it comes into contact with the coil 10, and thereby the impact at the time of contact is mitigated. Does not scratch or deform.

Further, since the measuring arm traveling air cylinder 6 and the main body traveling air cylinder 5 are operated by air pressure, the impact when the contact 8 abuts on the coil 10 is also mitigated by these two air cylinders. This makes it possible to more reliably prevent the coil 10 from being damaged. When the coil 10 is loosely wound after annealing or is a final product, it is more necessary to prevent the coil 10 from being deformed and damaged. In the device of the present invention, the contact 8 and the two airs are used. The cylinder achieves these goals more effectively.

After the contact 8 comes into contact with the coil 10, the traveling of the main body 1 of the apparatus is continued, so that the measuring arm 2 having the contact 8 in contact with the coil 10 at the tip thereof moves backward (FIG. 4). reference). Then, when the measuring arm 2 reaches the backward limit position, the position is detected by the backward limit limit switch 3 of the backward amount detector, and the main body traveling air cylinder 5 is stopped by the detection signal, so that the apparatus main body 1 is stopped. To do. Then, the distance traveled by the main body 1 of the apparatus is calculated by the distance measuring device 4, and the positional deviation amount of the coil 10 is obtained by the following equation: Y = (X1−X2) / 2 (1) (see FIG. 5).

In this equation (1), Y is the amount of displacement of the coil 10, X1 is the amount of movement of the one apparatus main body 1, and X2 is the amount of movement of the other apparatus main body 1. The displacement of the coil 10 can be corrected by moving the coil 10 or the back plate 13 of the coil car 9 on which the coil 10 is loaded.

[0018]

FIG. 1 shows an embodiment of the present invention.

This is used for mounting the coil 10 on the mandrel of the coil rewinding machine provided on the entry side of the thin and high continuous rolling line, and the up-end coil 10 suspended and conveyed by the riff mag. Are mounted on the back plate 13, and the back plate 13 is provided on both sides of the coil car 9 with a down end which turns the coil 10 down by turning the back plate 13.

In this embodiment, the forward limit switch 11 is provided near the backward limit switch 3 to detect the forward limit position of the measuring arm 2. The apparatus main body 1 and the measuring arm 2 are assumed to travel on the linear way 12, whereby smooth running with less resistance is achieved, and the impact when the roller contact 8 comes into contact with the coil 10 is further alleviated. It is intended to prevent the damage of the. Further, the roller contactor 8 has such a size that even when the center of the coil 10 and the center of the measuring arm 2 are deviated, the roller contactor 8 does not escape laterally when the coil 10 comes into contact and the surface of the coil 10 is not scratched. I am sorry.
The contact 8 may have any shape as long as it does not damage the outer surface of the coil 10 without rotating.

The coil car 9 is provided with a shift device 14 for moving the back plate 13, and the shift amount of the coil 10 is corrected by moving the back plate 13 by the shift device 14. After the position shift amount of the coil 10 is calculated by the device of the present invention and the position shift is corrected by the shift device 14, the back plate 13 is turned 90 degrees to make the coil 10 a down end, and the coil car 9 travels on the rail 15. Thus, the coil 10 is attached to the mandrel of the rewinding machine.

A pulse oscillator is effective as the distance measuring device 4.

[0023]

As described above, according to the present invention, the measuring arm is set up so that it can be raised and lowered and the standing posture is maintained when the coil is loaded. Therefore, the measuring arm and the coil do not interfere with each other, and the coil is damaged. The loading work can be easily performed without doing.

Further, since the contactor is provided at the tip of the measuring arm and both the cylinder for traveling the measuring arm and the cylinder for traveling the main body of the apparatus are pneumatic type, when the contactor abuts the coil. The shock can be effectively mitigated, so that the coil can be prevented from being damaged or deformed.

[0025]

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a side view showing the function of the present invention, showing a state in which the measuring arm is in a standing posture.

FIG. 3 is a side view showing a state in which the measurement arm is moved forward.

FIG. 4 is a side view showing a state in which the measuring arm moves backward by moving the device body forward.

FIG. 5 is a diagram showing a positional deviation amount of a coil.

[0026]

[Explanation of symbols]

 1; Device main body 2; Measuring arm 3; Reverse limit switch 4; Distance measuring device 5; Main body traveling air cylinder 6; Measuring arm traveling air cylinder 7; Measuring arm raising cylinder 8; Contact 9; Coil car 10; Coil 11 Forward limit switch 12; Linear way 13; Back plate 14; Shift device 15; Rail

Claims (1)

[Claims] 1. A device for detecting a positional deviation amount of a coil loaded on a coil car at an up-end, and a pair of device main bodies which are opposed to each other with the coil car interposed therebetween and which can move forward and backward with respect to the coil. A measuring arm that is located at the tip of each device main body, is movable forward and backward with respect to the coil, and can be tilted up and down, and has a contactor at the tip for contacting the coil, and a backward movement of the measurement arm. A retreat amount detector that detects the amount and stops the reciprocating movement of the device body,
A position shift amount detecting device for an up-end coil, comprising a distance measuring device for detecting a moving amount of the device body.