JPH0523740A - Detecting method for insertion abnormality to uncoiling reel of coil - Google Patents

Abstract

(57) [Summary] [Purpose] Detects abnormal insertion of the coil into the rewind reel. [Construction] Photoelectric tube sensors 1 and 2 for detecting the reel-side end surface 4a of the coil 4 are provided at the tip 3a of the reel core 3 and at a position 3b apart from the tip 3a by a predetermined distance. A coil car 5, which can travel in the same direction as the axial direction, is provided with a position sensor 6 for detecting a moving distance and a moving time of the coil car 5, and then the coil 4 is loaded on the coil car 5 and moves together with the coil car 5. The time when the reel side end surface 4a of the coil 4 passes between the two photoelectric tube sensors 1 and 2 and the coil car 5 is 2 times.
The distance between the two photoelectric tube sensors 1 and 2 is compared with the time when the photoelectric sensor is moved by the same distance, and an abnormality in the insertion of the coil into the reel core is determined based on the deviation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for detecting an abnormal insertion of a coil into a rewinding reel in the work of inserting and mounting the coil in an overhang mandrel type rewinding reel.

[0002]

2. Description of the Related Art When inserting a coil into a rewind reel, the coil may not be inserted into the reel core due to a plate edge sag of the coil inner diameter, a collapse of the inner diameter, or a deviation between the coil inner diameter core and the reel core. There may be an insertion error that does not work. The detection of such an insertion abnormality has been conventionally performed by monitoring an operator (human).

Further, Japanese Patent Laid-Open No. 2-165,813 discloses a method for detecting an abnormal insertion of a metal strip coil into a rewind reel (hereinafter referred to as "prior art 1"). FIG. 3 is a side view illustrating the conventional technique 1. Prior art 1
Compares the moving distance of the metal steel strip coil 4 with the moving distance of the coil car 5, and judges the insertion abnormality when the deviation between the two moving distances is large, and the moving speed of the metal steel strip coil 4 and the coil car 5. This is a method of comparing the moving speeds and judging that the insertion is abnormal when the deviation between the two moving distances is large.

[0004]

The method of detecting the coil insertion abnormality by monitoring the operator requires manpower, which is problematic in streamlining personnel.

In the prior art 1 shown in FIG. 3, the device 10 for measuring the moving distance of the coil 4 or the moving speed of the coil 4 needs to be arranged on the extension of the axis of the reel core 3. The sensor that can accurately measure the distance traveled by the coil car 5 is very expensive, and when the measuring device is arranged on the reel side, it is a device attached to the reel, such as a snubber device, or in some cases, an outer board device. Has a problem of measurement interference. Further, in the case where the measuring device is arranged on the side opposite to the reel, in addition to the above-mentioned problems, in some cases, there is a problem that it interferes with the operator's work or causes the measurement error and failure due to the operator's work.

Further, since the coil 4 loaded on the coil car 5 causes sideslip, in order to suppress erroneous detection of abnormality due to this, when the judgment value of large deviation is increased, an abnormality at the time of coil insertion, for example, When the coil collides with the tip of the reel core, there is a problem that detection of an abnormality is delayed, which causes a great trouble.

[0007] Further, there is a possibility that an abnormal error may be detected due to a slip when the coil car is running.
There are also problems such as the need to invest in adopting racks and pinions for the coil car wheels.

Therefore, an object of the present invention is to provide a method for detecting abnormal insertion of a coil into a rewinding reel, which can detect an abnormal reel insertion with a relatively small facility without using an operator. To do.

[0009]

According to the present invention, there is provided a photoelectric tube sensor for detecting an end face of a coil on a reel side, a tip of a reel core of a rewinding reel, and a predetermined distance from the tip in an axial direction of the reel core. And a position sensor for detecting a moving distance and a moving time of the coil car in a coil car that can travel in the same direction as the axial direction of the reel core, and then on the coil car. The time when the reel side end surface of the coil which is loaded with the coil and moves together with the coil car passes between the two photoelectric tube sensors, and the time when the coil car moves the same distance as the distance between the two photoelectric tube sensors. It is characterized in that an abnormality in inserting the coil into the reel core is determined by comparing the difference between

Next, the present invention will be described with reference to the drawings. 1 is a side view showing an embodiment of the present invention, FIG.
FIG. 2 is a view on arrow AA of FIG. 1. In order that the reel core 3 of the coil rewind reel (hereinafter referred to as “reel”) 30 can be inserted into the hollow coil inner diameter core of the coil 4, the coil 4 has the axis line of the coil inner diameter core, It is loaded on the coil car 5 so as to coincide with the axis line of. Also,
The axial direction of the reel core 3 and the traveling direction of the coil car 5 are the same.

A photoelectric tube sensor (hereinafter referred to as "sensor") 1 is arranged at a tip (hereinafter referred to as "reel core tip") 3a of the reel core 3 in a direction orthogonal to the reel core 3. Further, a photoelectric tube sensor 2 is arranged in a direction (hereinafter, referred to as “position”) 3b which is apart from the reel core tip 3a by a predetermined distance (L mm) in a direction orthogonal to the reel core 3. The sensor 1 and the sensor 2 detect the time taken for the reel-side end surface (hereinafter, referred to as “coil end surface”) 4a of the coil 4 to pass between the sensor 1 and the sensor 2.

A position measuring sensor (hereinafter referred to as "position sensor") 6 for measuring the moving position of the coil car 5 and counting the change in the position is attached to the coil car 5. The position sensor 6 starts detection when the coil end surface 4a passes the sensor 1 (when the sensor 1 detects the coil end surface 4a). From then on, the coil car 5 is moved to a predetermined distance Lmm (the reel core tip 3a and the position 3b).
The same time as the distance between and) is detected. As the position sensor 6, a PLG (PULSE GE
NERATOr = pulse generator) is used.

Reference numeral 7 is a controller for comparing the detection signals from the sensors 1 and 2 with the detection signals from the position sensor 6 and performing arithmetic processing. A controller 8 and a controller 9 for controlling the traveling of the coil car 5 in response to a command from the controller 7 are traveling motors of the coil car 5. By the controller 7, the time from when the coil end surface 4a passes the sensor 1 to when it passes the sensor 2 and when the coil end surface 4a passes the sensor 1 and the coil car 5 has a predetermined distance Lmm (position of the reel core tip 3a (Distance to 3b) The time taken to travel is compared, and the deviation determines the abnormal insertion of the coil into the rewind reel.

[0014]

[Operation] Due to the cause of the coil inner diameter sagging, the inner diameter being crushed, or the coil inner diameter core being displaced from the reel core,
The end surface 4a of the coil 4 collides with the reel core tip 3a. In this case, the reel core 3 does not enter the hollow coil inner diameter core of the coil 4. At this time, the coil car 5 is continuing to travel, so that the coil 4 is moved to the reel core 3 at that position.
Is pushed by and skids on the coil car 5. In response to such a phenomenon, abnormal insertion of the coil into the rewind reel is detected as described below. That is, the sensor 1 and the sensor 2 detect the time required for the coil end surface 4a to pass to the position 3b at a predetermined distance L mm from the reel core tip 3a. Further, when the sensor 1 detects the coil end surface 4a, the position sensor 6 detects the time for the coil car 5 to move the predetermined distance Lmm. Then, the detected two times are compared by the controller 7, and when the deviation between the compared two times is a predetermined value or more, or the sensor 1 detects the coil end surface 4a, and the position sensor 6 causes the coil car 5 to move. Although the time to move for a predetermined distance Lmm was detected,
When the time when the position 3b is passed is not detected by the coil end surface 4a, it is determined that the coil is abnormally inserted into the reel core of the rewinding reel. In such a case, the controller 7 sends a command to stop the traveling of the coil car 5 to the controller 8, and the coil car 5 stops traveling.

[0015]

As described above, according to the method of the present invention, the abnormal insertion of the coil into the rewinding reel can be detected easily and surely, and the coil cannot be mounted on the reel and the defect is completely eliminated. In addition, the operator does not need to monitor the operation during operation, which saves labor, and the apparatus used in the method of the present invention has a low manufacturing cost. Thus, an industrially useful effect is brought about.

[Brief description of drawings]

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

FIG. 2 is a view on arrow AA of FIG.

FIG. 3 is a side view showing an example of a conventional method for detecting abnormality in insertion of a coil into a rewind reel.

[Explanation of symbols]

 1, 2 Photoelectric tube sensor 3 Reel core 3a Reel core tip 3b Position 30 Coil rewind reel 4 Coil 4a Coil end face 5 Coil car 6 Position sensor 7 Controller 8 Controller 9 Motor 10 A device to measure the moving speed of the coil.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoichi Kiuchi 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Nihon Steel Pipe Co., Ltd.

Claims (1)

Claim: What is claimed is: 1. A photoelectric tube sensor for detecting an end surface of a coil on the reel side is separated from a tip of a reel core of a rewinding reel and a predetermined distance from the tip in the axial direction of the reel core. Provided in a position, further, in a coil car that can travel in the same direction as the axial direction of the reel core, a position sensor for detecting a moving distance and a moving time of the coil car is provided, and then,
A coil is loaded on the coil car, and the time when the reel side end surface of the coil moving together with the coil car passes between the two photoelectric tube sensors, and the distance between the coil car and the two photoelectric tube sensors is the same. A method for detecting abnormality in insertion of a coil into a rewinding reel, characterized by comparing the time when the coil is moved and determining an abnormality in insertion of the coil into the reel core based on the deviation.