JPH08151023A - Method of comparing metal strip coil - Google Patents

Abstract

PURPOSE: To compare the coil to be packed without requiring any manual operation by a method wherein the dimension of each part of the coil is obtained based on the operating positions of two sensors for detecting the coil inside diameter and the coil grip provided on transfer arms. CONSTITUTION: A metal strip coil 3 is held between transfer arms 6 and 6a when it is transferred on a packing line. During this time, when the operating positions of coil inside diameter detecting sensors 7 and 7a and coil grip detecting sensors 10 and 10a are measured by an operating position measuring instrument 8 and its related device 11 and 11a, the resulting measuring values are automatically input into a computor 9 to immediately compute the outside diameter, the inside diameter, the thickness and the width of the coil 3 from the amount of displacement of the transfer arms 6 and 6a. The computed values of the outside diameter, the inside diameter, the thickness and the width of the coil 3 obtained by the computor 9 are input into a host computor 12 for comparison with the reference values of the outside diameter, the inside diameter, the thickness and the width of the coil 3 previously stored in a memory of the host computor 12 and, when the coil is judged as complying with the reference values, the transfer arms 6 and 6a lift up the coil and transfer it on the packing line.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a metal band coil for checking the dimensions of a metal band coil transferred from a finishing line to a packing line so as to prevent accidental shipment of different kinds of metal band coils. It is related to the collation method of.

[0002]

2. Description of the Related Art A metal band coil such as a steel band is registered in a computer with its outer diameter, inner diameter, wall thickness, width, etc. after rolling and refining, and a certificate card for the metal band coil is issued. After that, this metal strip coil is transferred to the packing line, at which time the outer diameter, inner diameter, wall thickness, width, etc. of the metal strip coil are manually measured based on the certification card, and the dimensions stated on the certification card are measured. After confirming that it is the metal strip coil, it is gripped by the transfer arm of the transfer machine and transferred to the packing line. However, a mistake occurs in the manual measurement of the metal strip coil and the comparison with the certification card as described above, the metal strip coil of a different material flows into the packing line, which causes the operation or failure of the packing equipment, which leads to the stop of the packing line. Further, manual measurement requires a large number of personnel, which is not preferable from the viewpoint of labor saving.

[0003]

The problem to be solved by the method of the present invention is to solve the above-mentioned problems and to transfer the transfer from the adjusting line to the packing line without human intervention. The metal to be packed by automatically measuring the outer diameter, inner diameter, wall thickness, width, etc. of the metal strip coil with the sensor for detecting the coil inner diameter hole and the sensor for detecting the coil pinch attached to the transfer arm of the machine. It is an object of the present invention to provide a method for checking a metal coil coil that checks whether or not the coil is a coil coil.

[0004]

A method for collating a metal strip coil according to the present invention, which has solved the above-mentioned problems, holds a metal strip coil between transfer arms of a transfer machine and transfers it to a coil packing line. When mounting, measure the operating positions of the coil inner diameter hole detection sensor and coil pinch detection sensor attached to the transfer arm, and based on these measured values, the outer diameter, inner diameter, and thickness of the metal strip coil. Characterized in that the thickness and width are calculated, and the calculated values are input to a computer in which the standard values of the outer diameter, inner diameter, wall thickness and width of the metal strip coil are stored in advance and the two are compared and collated. Is.

[0005]

According to the method of the present invention, when the temporarily placed metal strip coil is transferred to the packing line by the transfer machine, that is, the transfer machine is operated on the packing line entrance side to detect the coil inner diameter hole and the coil. A pair of transfer arms equipped with a pinch detection sensor descends, the distance between the transfer arms is narrowed, and the proper gripping position of the temporarily placed metal strip coil is reached, and the claw intervenes in the inner diameter hole of the coil. If the metal strip coil is sandwiched between the transfer arms in this state, the transfer arm moves to the coil packing line and a predetermined operation is performed, but the metal strip coil is gripped between the transfer arms. When the transfer arm reaches the proper gripping position, signals from the coil inner diameter hole detection sensor and the coil pinch detection sensor are sent to the operating position measuring machine, which measures the operating position. Measured value The outer diameter, inner diameter, wall thickness, and width of the metal strip coil are calculated based on the amount of movement sent to the computer and obtained from the comparison between this measured value and the reference position before the transfer arm operates. After that, input this calculated value into a higher-level computer and compare it with the reference values of the outer diameter, inner diameter, wall thickness, and width of the metal coil that is stored in advance in this computer, and then transfer the metal. It suffices to judge the suitability of the band coil.

[0006]

EXAMPLES Next, examples of the method of the present invention will be described. The metal strip coil 3 placed on the temporary placing table 2 provided on the entrance side floor 1 of the packing line is transferred to the packing line by the transfer machine 4. The transfer machine 4 has a pair of transfer arms 6 and 6a which can be moved up and down and whose left and right gaps can be adjusted. The transfer arms 6 and 6a have inwardly directed pawls 5 formed at their tips. 5,
Sensors 7 and 7a for detecting the coil inner diameter hole are attached to a, and sensors 10 and 10 for detecting the coil sandwiching are provided in the middle.
a is attached. Sensor for detecting the inner diameter hole of the coil 7,
7a is shielded from light at the thick portion B of the metal strip coil 3 and allowed to pass through at other portions. Reference numeral 8 is an operating position measuring device that is connected to the sensors 7 and 7a for detecting the inner diameter of the coil and measures the vertical position of the transfer arms 6 and 6a. 6a claws 5, 5
The operating position is measured from the position of a and the positions of the claws 5 and 5a after descending. Reference numerals 11 and 11a denote operating position measuring machines which are connected to the sensors 10 and 10a for detecting the sandwiching of the coil and which measure the left and right positions of the transfer arms 6 and 6a. 11a are both connected to the computing unit 9, and are sensors 7, 7a for detecting the inner diameter hole of the coil and sensors 10, 10a for detecting the pinch of the coil.
The operating position of the operating position measuring machine 8 and the operating position measuring machine 1
1 and 11a, the measured value is calculated by the calculator 9
Is automatically input to calculate the outer diameter, the inner diameter, the wall thickness, and the width of the metal strip coil 3 from the movement amounts of the transfer arms 6 and 6a.

Reference numeral 12 is a higher-level computer connected to the computing unit 9. The computer 12 stores in advance data of reference values of the outer diameter, inner diameter, wall thickness and width of the metal strip coil 3, When the calculated values of the outer diameter, the inner diameter, the wall thickness, and the width of the metal strip coil 3 to be transferred, which are calculated by the calculator 9, are automatically input, the calculated values are stored as reference values. It is configured to compare and collate the two and inform whether the metal strip coil 3 to be transferred is an appropriate product within the reference value or an inadequate product. In the figure, 14 is a terminal for calling a metal strip coil for comparison.

The dimensions of the metal strip coil 3 to be transferred and placed on the temporary placing table 2 are measured by referring to FIGS. 1 and 3, where H is the height of the claw at the standby position and A is the standby position. From the position of the claw to the top of the coil, B: coil thickness,
C: 1/2 of outer diameter, D: distance between coil center point and lowest position of temporary stand, E: distance between floor and lowest position of temporary stand,
When Do is the coil outer diameter, Di is the coil inner diameter, and W is the coil width (W ₁ + W ₂ ), the following equations are calculated. Formula for calculating outer diameter, inner diameter, wall thickness and width of the metal band coil 3 Calculation of outer diameter (Do) H = A + C + D + E = A + (Do / 2) + (Do / 2 ×
1 / cos θ) + E Do = (H−AE) × 2 / (1 + cos θ) Calculation of inner diameter (Di) Di = Do− (B × 2) Calculation of width (W) W = W ₁ + W ₂

A metal strip coil 3 temporarily placed on the temporary placing table 2.
When the transfer machine 4 is transferred to the packing line, when the transfer arms 6 and 6a are lowered by the operation of the transfer machine 4, the thick portions B of the metal strip coil 3 are provided on the claws 5 and 5a. Between the sensors 7 and 7a for detecting the inner diameter hole of the coil is shielded from light, and the light is transmitted through the inner diameter Di, and this signal is sent to the operating position measuring machine 8 to measure the operating position from the reference value before the operation. Is sent to the arithmetic unit 9 in which the respective calculation formulas for the outer diameter Do, the inner diameter Di, and the coil width W are stored in advance, and A, B,
C, D, E, H are calculated, and similarly, the metal strip coil 3
When the claws 5 and 5a of the transfer arms 6 and 6a are positioned to the inner diameter Di in order to lift the coil, signals from the sensors 10 and 10a for detecting the coil sandwiching between the transfer arms 6 and 6a are transmitted to the operating position measuring machine 11. , 11a to measure the operating position from the reference value before the operation, and the measured value is guided to the calculator 9 and the distance from the open position of the transfer arms 6 and 6a to the contact with the metal strip coil 3 Calculate W ₁ and W ₂ . The coil wall thickness is measured by the distance between the light shields.

That is, when the metal strip coil 3 is transferred to the packing line, the transfer arms 6 and 6a of the transfer machine 4 are operated to detect the coils 7 and 7a for detecting the inner diameter of the coil and the coil pinch detection. The pair of transfer arms 6 and 6a equipped with the sensors 10 and 10a of FIG. 2 descend and reach the proper gripping position of the metal strip coil 3 that is temporarily placed with the mutual interval narrowed,
The metal strip coil 3 is sandwiched between the transfer arms 6 and 6a with the claws 5 and 5a intervening in the coil inner diameter hole of the metal strip coil 3, and a predetermined operation of moving the transfer arm to the coil packing line is performed. In the present invention, the sensors 7 and 7a for detecting the coil inner diameter holes are used in the present invention.
connected to an operating position measuring machine 8 for measuring the vertical position of a,
Sensors 10 and 10a for detecting coil pinching are operating position measuring machines 11 and 1 for measuring the left and right positions of the transfer arms 6 and 6a.
In addition to being connected to 1a, the operating position measuring machine 8 and the operating position measuring machines 11 and 11a are connected to the computing unit 9, and the coil inner diameter hole detecting sensors 7 and 7a and the coil sandwiching detecting sensor 10 are connected. When the operating position of 10a is measured by the operating position measuring machine 8 and the operating position measuring machines 11 and 11a,
The measured value is automatically input to the computing unit 9 and the metal strip coil 3 is about to be transferred from the moving amount of the transfer arms 6 and 6a.
Since the outer diameter, the inner diameter, the wall thickness, and the width are calculated, the outer diameter, the inner diameter, the wall thickness, and the width of the metal strip coil 3 to be transferred are immediately calculated.

Then, the calculated values of the outer diameter, the inner diameter, the wall thickness, and the width of the metal strip coil 3 to be transferred, which are calculated by the calculator 9, are stored in the host computer 12 connected to the calculator 9. When it is input and compared with the reference values of the outer diameter, the inner diameter, the wall thickness, and the width of the metal strip coil 3 stored in advance in the calculator 12, and it is determined that the metal strip coil is within the reference values, the transfer machine 4 When the transfer arms 6 and 6a of No. 1 move to the hoisting and packing line and it is determined that the coil is different from the metal strip coil which is not within the reference value, that effect is displayed on the display 13 and the transfer is stopped. Become.

[0012]

As is apparent from the above description, the present invention is as follows.
Measure the operating positions of the coil inner diameter hole detection sensor and coil sandwiching detection sensor attached to the transfer arm, and based on these measured values, determine the outer diameter, inner diameter, wall thickness, and width of the metal strip coil. The calculated values are input to a computer that stores the standard values of the outer diameter, inner diameter, wall thickness, and width of the metal strip coil in advance, and the two are compared and collated. The sensor for detecting the coil inner diameter hole and the sensor for detecting the coil pinch, which are attached to the transfer arm of the transfer machine without any manual intervention during transfer to the line, effectively utilize the metal strip coil The outer diameter, inner diameter, wall thickness, width, etc. can be automatically measured to accurately determine whether or not the metal strip coil should be shipped, and the shipment of the dissimilar metal strip coil can be reliably prevented. In addition, labor can be saved by eliminating the manual check. Excellent effects such can be obtained.

[Brief description of drawings]

FIG. 1 is a front view illustrating an embodiment of the method of the present invention.

FIG. 2 is a front view for explaining a measurement state of the metal strip coil according to the method of the present invention.

FIG. 3 is a side view illustrating a measurement state of the metal strip coil according to the method of the present invention.

[Explanation of symbols]

 3 Metal band coil 4 Transfer machine 6 Transfer arm 6a Transfer arm 7 Sensor for coil inner diameter hole detection 7a Sensor for coil inner diameter hole detection 8 Operating position measuring machine 9 Arithmetic machine 10 Sensor for coil pinch detection 10a Coil sandwiching Sensor for detection 11 Operating position measuring machine 11a Operating position measuring machine 12 Calculator

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Sumio Fukumoto 59 at 1 Oshimizu, Tokishima-cho, Tokai-shi, Aichi

Claims (1)

[Claims] 1. When a metal strip coil is gripped between transfer arms of a transfer machine and transferred to a coil packing line, a coil inner diameter hole detection sensor and a coil pinch detection provided on the transfer arm are provided. The operating position of the sensor is measured, and the outer diameter, inner diameter, wall thickness, and width of the metal strip coil are calculated based on this measurement value.
A method for collating metal strip coils, wherein the reference values of the wall thickness and the width are input to a computer in which they are stored and the two are compared and collated.