JP2004130362A - Method for coiling thin sheet metal strip, method for coiling thin sheet metal strip, computer program, and computer-readable recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To predict the occurrence of coil strip scratches in an apparatus for coiling a thin sheet metal strip. <P>SOLUTION: When a thin sheet metal strip subjected to prescribed treatment is coiled to produce a coil, there are provided a first laser sensor of detecting the coiling diameter on the driving side in a coiling shaft for coiling the thin sheet metal strip, and a second laser sensor of detecting the coiling diameter on a work side in the coiling shaft. Then, the phase difference between the swinging quantity on the side of the drive 2 and the swinging quantity on the work side in the coiling shaft is detected, and the roundness of the coiling shaft of the metal strip is continuously measured from the start to completion of the coiling at a high precision, so that the coiling can be performed in a state where the swinging quantity is always small. Thus, the occurrence of scratches is prevented, and the yield in the production of the coil can be remarkably improved. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a sheet metal strip winding device, a sheet metal strip winding method, a computer program, and a computer-readable recording medium, and particularly to a yield due to scratches when winding a sheet metal strip to produce a coil. It is suitable for use to prevent dropping.
[0002]
[Prior art]
Conventionally, in a sheet metal band winding device, the scratches generated on the surface of the metal band when winding the metal band, the sheet metal band and the metal band overlap when winding the sheet metal band in a coil shape. Often occurs. Conventional techniques for preventing the flaws generated as described above include those disclosed in Patent Literature 1 and Patent Literature 2, for example.
[0003]
In Patent Literature 1, a lubricant is applied to the surface of the metal band to reduce friction between the metal bands and prevent the occurrence of surface flaws. However, this method cannot be applied to a metal band of an uncoated oil material. Was.
[0004]
In Patent Literature 2, a vibration sensor is installed on a bearing portion of a reel shaft of a coil winding device, and vibration and displacement in the bearing portion are detected to prevent a metal band surface flaw. However, in this case, since the vibration of the bearing portion of the reel shaft provided in the coil winding device is detected, the actual behavior and vibration of the metal band cannot be directly detected. There is a problem that the detection at the stage is difficult and the detection accuracy is poor.
[0005]
As a conventional technique for predicting the flaws generated on the surface of the thin metal strip, for example, Patent Document 3 proposes a “method of predicting the occurrence of flaws on the surface of the metal strip”. The prediction method proposed in Patent Document 3 detects a position of an end portion of a metal band inserted into a winding device of a metal band in a rolling line in a plate width direction, and uses the position detection signal to detect the position of the winding device. A frequency component that coincides with the rotation frequency is extracted, and the occurrence of scratches on the surface of the metal band is predicted based on the signal level of the frequency component.
[0006]
[Patent Document 1]
JP-A-60-37222
[Patent Document 2]
Japanese Utility Model Publication No. 4-415
[Patent Document 3]
JP-A-7-68318
[0007]
[Problems to be solved by the invention]
In the case of the “method of predicting the occurrence of flaw defects on the surface of a metal strip” proposed in Patent Document 3, the diameter of the winding strip of the metal strip is extracted using an eddy current sensor, and matched with the rotation frequency of the winding device. Frequency components to be detected.
[0008]
In the case of the above-mentioned eddy current sensor, the coil diameter is measured by detecting the eddy current generated in the inspection object. Therefore, the coil diameter cannot be detected unless the eddy current flows, so that the metal band is wound. When the rubber sleeve is inserted into the shaft, the diameter of the shaft cannot be measured, and when the rubber sleeve is inserted, the roundness of the metal band winding shaft cannot be accurately measured. .
[0009]
SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and has as its first object to be able to detect a deflection amount of a metal band winding shaft with high accuracy.
Also, it is necessary to detect the roundness of the metal band winding shaft in a state where the rubber sleeve is inserted so that the roundness of the winding shaft before starting to wind the metal band can be adjusted with high accuracy. This is the purpose of 2.
It is a third object of the present invention to be able to adjust the roundness of the winding shaft with high precision via an inner diameter sleeve inserted in the rubber sleeve.
[0010]
[Means for Solving the Problems]
The sheet metal strip winding device of the present invention is a sheet metal strip winding apparatus for winding a sheet metal strip subjected to a predetermined process to manufacture a coil, and winding the sheet metal strip. Laser distance meter having at least a first laser sensor for detecting a drive-side winding diameter of a winding shaft for the winding shaft, and a second laser sensor for detecting a work-side winding diameter of the winding shaft for the winding shaft And roundness detecting means for detecting a phase difference between the drive-side runout amount and the workside-side runout amount of the winding shaft.
Another feature of the present invention is a sheet metal band winding device for winding a sheet metal band subjected to a predetermined treatment to produce a coil, wherein the sheet metal band is wound. A laser distance comprising at least a first laser sensor for detecting a drive-side winding diameter of a winding shaft for taking up and a second laser sensor for detecting a work-side winding diameter of the winding shaft. A roundness detecting means for detecting the roundness of the winding shaft via a rubber sleeve inserted into a winding shaft for winding the thin metal band; and A roundness adjusting means for adjusting the roundness of the rubber sleeve based on the detection result.
Another feature of the present invention is that the roundness detecting means detects a winding diameter near both ends of a thin metal strip wound on the winding shaft.
Another feature of the present invention is that the roundness of the winding shaft is detected through an inner diameter sleeve inserted in the rubber sleeve.
Another feature of the present invention is that a phase difference calculation for calculating a phase difference between a drive-side shake amount and a work-side shake amount of the winding shaft detected by the roundness detecting means. Means, and an alarm output means for outputting an alarm to an alarm output device when the phase difference calculated by the phase difference calculation means reaches a predetermined value.
Another feature of the present invention is that it has gain adjustment means for adjusting the gain of the metal band edge position control device when the phase difference calculated by the phase difference calculation means has reached a predetermined value. It is characterized by.
Another feature of the present invention is that, when the phase difference calculated by the phase difference calculating means reaches a predetermined value, an opposite-phase vibration is applied to the sheet metal band to cause the phase difference. The present invention is characterized in that a control signal is output to a phase difference canceling device for reducing the phase difference and anti-phase control means is provided.
Another feature of the present invention is that, when the phase difference calculated by the phase difference calculating means has reached a predetermined value, a metal band cutting device for cutting the thin metal band is operated. And cutting control means for controlling to perform intermediate division of the coil.
[0011]
The method for winding a sheet metal strip according to the present invention is a method for winding a sheet metal strip which has been subjected to a predetermined treatment to manufacture a coil by winding the sheet metal strip. Laser distance meter having at least a first laser sensor for detecting a drive-side winding diameter of a winding shaft for the winding shaft, and a second laser sensor for detecting a work-side winding diameter of the winding shaft for the winding shaft And a roundness detection step of detecting a phase difference between the drive-side runout amount and the workside-side runout amount of the winding shaft by using
Another feature of the present invention is a method for winding a sheet metal strip for manufacturing a coil by winding a sheet metal strip subjected to a predetermined treatment, wherein the sheet metal strip is wound. A laser distance comprising at least a first laser sensor for detecting a drive-side winding diameter of a winding shaft for taking up and a second laser sensor for detecting a work-side winding diameter of the winding shaft. A roundness detecting step of detecting the roundness of a rubber sleeve inserted in a winding shaft for winding the thin metal band using a meter, based on a detection result of the roundness detecting step. A roundness adjusting step of adjusting the roundness of the rubber sleeve.
Another feature of the present invention is that the roundness detecting step detects a winding diameter near both ends of the thin metal strip wound on the winding shaft.
According to another feature of the present invention, the roundness detecting step is characterized in that the roundness of the winding shaft is detected via an inner diameter sleeve inserted in the rubber sleeve. I have.
Another feature of the present invention is that a phase difference calculation for calculating a phase difference between a drive-side runout amount and a workside-side runout amount of the winding shaft detected in the roundness detection step. And an alarm output step of outputting an alarm to an alarm output device when the phase difference calculated in the phase difference calculation step reaches a predetermined value.
Another feature of the present invention is to have a gain adjustment step of adjusting the gain of the metal band edge position control device when the phase difference calculated in the phase difference calculation step has reached a predetermined value. It is characterized by.
Another feature of the present invention is that, when the phase difference calculated in the phase difference calculating step has reached a predetermined value, vibration of an opposite phase is applied to the thin metal band to thereby produce the phase difference. Characterized by having an antiphase control step of reducing the phase shift.
Another feature of the present invention is that when the phase difference calculated in the phase difference calculating step has reached a predetermined value, a metal band cutting device for cutting the thin metal band is operated. And a cutting control step of performing control to perform intermediate division of the coil.
[0012]
The computer program according to the present invention is a computer program for causing a computer to execute a method for winding a sheet metal strip for manufacturing a coil by winding a sheet metal strip subjected to a predetermined process. Using a first laser sensor for detecting a winding diameter on the drive side of the winding shaft for winding the band, and a second laser sensor for detecting a winding diameter on the work side of the winding shaft. The computer is further configured to execute a roundness detection step of detecting a phase difference between a drive-side shake amount and a work-side shake amount of the winding shaft.
[0013]
A recording medium according to the present invention is characterized by recording the computer program described above.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, with reference to the accompanying drawings, embodiments of a sheet metal strip winding device, a sheet metal strip winding method, a computer program, and a computer-readable recording medium of the present invention will be described.
[0015]
FIG. 1 is a block diagram showing an embodiment of a sheet metal strip winding device according to the present invention. As shown in FIG. 1, the winding device for a thin metal band according to the present embodiment includes a first laser sensor 11, a second laser sensor 12, a reel rotation detector 13, a pulse generator 14, an arithmetic unit 15, It has a coil outline display device 16, an alarm output device 17, a roundness adjusting means 18, and the like.
[0016]
The first laser sensor 11 is provided for detecting the diameter of the winding shaft 1 on the drive side 2 side for winding the strip to generate the coil 5. The second laser sensor 12 is provided to detect the diameter of the winding shaft 1 on the work side 3 side.
[0017]
The reel rotation detector 13 detects the rotation state of the winding shaft 1 and outputs a rotation detection signal to the pulse generator 14. The pulse generator 14 outputs a pulse signal to the arithmetic unit 15 every time the winding shaft 1 makes one rotation based on the rotation detection signal sent from the reel rotation detector 13.
[0018]
The arithmetic unit 15 is based on the diameter information of the drive side 2 of the winding shaft 1 input from the first laser sensor 11 and the diameter information of the work side 3 input from the second laser sensor 12. The difference between the diameter of the winding shaft 1 on the drive side 2 side and the diameter of the winding side 1 on the work side 3 is calculated for each rotation of the winding shaft 1. Then, it is determined whether or not the calculation result is larger than a preset reference value X, and the determination result is output to the coil outer shape display device 16 and the alarm output device 17. Therefore, in the present embodiment, the arithmetic unit 15 functions as a control unit that controls the entire operation of the thin metal strip winding device and a roundness detection unit that will be described later.
[0019]
Here, the type and image of the coil vibration will be described with reference to FIG. The coil run-out generated when the metal strip is wound around the winding shaft 1 can be roughly classified into a vertical run-out as shown in FIG. 9A and a run-out as shown in FIG. 9B. .
[0020]
In the vertical deflection shown in FIG. 9A, the metal strip surface to be wound and the coil surface are parallel to each other, and no relative displacement occurs. Therefore, in the case of vertical runout, coil slip flaws, which are quality defects, do not occur.
[0021]
On the other hand, in the case of the whirling of FIG. 9B, since a relative displacement occurs between the metal strip surface and the coil surface, a coil slip flaw as a quality defect occurs. For this reason, when the phase component of the whirling vibration of both ends (the diameter of the drive side and the work side) of the winding surface is 180 °, a slip flaw occurs. This antiphase component is the same as the cycle of one rotation of the winding shaft 1.
[0022]
That is, no slip flaw is generated only in the lateral direction (thrust direction), and as shown by an arrow in FIG. 9B, a coil slip flaw is generated when the entire coil has undulation. Therefore, in the present embodiment, the occurrence of coil slip flaws is predicted by calculating the amount of deflection of both ends 2 and 3 of the coil in synchronization with the rotation cycle of the winding coil.
[0023]
2 and 3 show a schematic configuration of a strip coil production line in which the sheet metal strip winding device of the present embodiment is provided, FIG. 2 is a configuration diagram viewed from a lateral direction, and FIG. It is the block diagram seen from the upper direction.
[0024]
As shown in FIGS. 2 and 3, the strip coil production line includes a position control actuator 21, a vibration generator 23, an EPC (Edge Position Control) device 24, and an automatic cutting device for controlling the position of the reel front roll 22. Machine 25 and the like.
[0025]
Next, the operation of the thin metal strip winding device of the present embodiment will be described with reference to the flowchart of FIG.
The winding apparatus for a thin metal band according to the present embodiment starts operation when the rubber sleeve 4 is inserted into the winding shaft 1 in the first step S41, and operates in a state where the rubber sleeve 4 is inserted. The diameter of the winding shaft 1 is detected for each of the drive side 2 and the work side 3. This detection is performed using the first laser sensor 11 and the second laser sensor 12, and is performed in a non-contact manner using the laser sensor in the present embodiment, and is thus made of rubber. With the rubber sleeve 4 inserted, the diameter of the winding shaft 1 can be accurately determined. Therefore, in the present embodiment, the roundness of the metal band winding shaft 1 can be accurately detected before starting to wind the thin metal band.
[0026]
When the roundness is detected in a state where the rubber sleeve 4 is inserted in the metal band winding shaft 1, it is preferable that the runout amount is within about 1.0 mm when the sleeve diameter is about 500 mm. Therefore, it is desirable to adjust the permissible amount of roundness before starting to wind the coil so as to be within “0.2%”.
[0027]
The case where the roundness is not within the allowable amount may be a case where the rubber sleeve 4 itself is not a perfect circle, or a case where the segment of the mandrel is not expanded to a predetermined position.
[0028]
As described above, in the present embodiment, the roundness is adjusted by expanding the segment position of the mandrel to a predetermined position based on the roundness of the rubber sleeve 4 detected by the arithmetic unit 15. Adjusting means 18 is provided.
[0029]
In the example shown in FIG. 1, the first laser sensor 11 and the second laser sensor 12 are used to detect the roundness of the rubber sleeve 4, but the center of the rubber sleeve 4 is detected. If the third laser sensor that mainly detects the amount of runout is provided, the profile of the rubber sleeve 4 can be detected more clearly.
[0030]
As described above, if the predetermined roundness is not obtained even when the segment position of the mandrel is enlarged to the predetermined position and the roundness is adjusted, the roundness of the rubber sleeve 4 itself is set to the predetermined value. In this case, the rubber sleeve 4 is replaced so that a predetermined roundness is obtained.
[0031]
In the above description of the roundness adjustment, the procedure of adjusting the roundness by showing the "wrapper roll type winding device" has been described. However, after the rolling line, the "belt wrapper type winding device" as shown in FIG. Is used. In FIG. 11, reference numeral 111 denotes a belt wrapper belt that winds the sheet metal strip 110 around the mandrel MD.
[0032]
Practical displacement meters can be roughly classified into non-contact displacement meters and contact displacement meters.
As a non-contact type displacement meter, an eddy current type, an optical type and an ultrasonic type are known. Further, an inductance displacement meter is known as a contact type displacement meter.
[0033]
Since the measurement principle of the eddy current displacement meter utilizes an impedance change due to a magnetic field, the measurement target is limited to metal. The spot property on the measurement surface is moderate, and is inferior to the optical type and the contact type but superior to the ultrasonic type. Although it is excellent in accuracy, it has a weak point on a curved surface. The resolution is about 0.3 μ to 1 μ, the measurement range is 0 to 10 mm, and the response frequency is about 18 kHz at the maximum.
[0034]
Since the measurement principle of the optical displacement meter utilizes a semiconductor laser, the object to be measured can be used for both solids and liquids. In addition, it has excellent spot properties on the measurement surface regardless of whether it is transparent or opaque. Further, the accuracy is excellent, the resolution is about 0.01 μ to 0.2 μ, the measurement range is 9 to 750 mm, and the response frequency is about 3 to 20 kHz at the maximum.
[0035]
The measurement principle of the ultrasonic displacement meter is based on the time when the emitted sound wave is reflected, so that the object to be measured can be used for both solids and liquids. It doesn't matter. However, the spot property on the measurement surface is low and is inferior to the optical type and the contact type. In addition, accuracy is poor, and there is a drawback of being affected by ambient temperature. The resolution is about 100 μ, the measurement range is 60 to several tens of mm, and the response frequency is about 20 kHz at the maximum.
[0036]
Since the measurement principle of the contact displacement meter utilizes a change in inductance, the measurement target is limited to a solid. It has excellent spot properties and accuracy on the measurement surface. The resolution is 0.16 μm, the measurement range is 1 to 10 mm, and the response frequency is about 40 kHz at the maximum.
[0037]
In the present embodiment, since the displacement amount is measured at a low period (about 10 kHz at the maximum), the measurement can be performed using any of the sensors. Therefore, the whirling of the coil is measured using a “laser displacement meter” which has the characteristics of being able to measure with high accuracy (resolution of about 0.01 mm or more), non-contact and long distance. Like that.
[0038]
After the rubber sleeve 4 is inserted into the metal band winding shaft 1, the process proceeds to step S42, where the roundness is detected. This detection is performed by measuring the diameters of the metal band winding shaft 1 on the drive side 2 side and the work side 3 side using the first laser sensor 11 and the second laser sensor 12 described above. The diameter information of the metal band winding shaft 1 detected by the first laser sensor 11 and the second laser sensor 12 is sent to the arithmetic unit 15.
[0039]
The pulse signal is input from the pulse generator 14 to the arithmetic unit 15, and the whirling amount is calculated every time the metal band winding shaft 1 makes one rotation. This calculation is performed assuming that “(A) is the diameter of the drive side 2 output from the first laser sensor 11 and B is the diameter of the work side 3 output from the second laser sensor 12. AB) _PP This is performed based on whether or not the expression of “≧ reference value X” is satisfied.
[0040]
As a result of the calculation performed in step S42, it is determined in step S43 whether the whirling amount of the metal band winding shaft 1 is larger than the reference value X. If the result of this determination is that the whirling amount of the metal band winding shaft 1 is larger than the reference value X, the process proceeds to step S44, where an alarm signal is output from the arithmetic unit 15 to the alarm output device 17, and the coil outer shape is displayed. The device 16 displays the coil outer diameter. When the alarm signal is input, the alarm output device 17 notifies the operator that the whirling amount of the metal band winding shaft 1 exceeds the reference value X by, for example, generating an alarm sound.
[0041]
Next, proceeding to step S45, it is determined whether or not the whirling amount of the metal band winding shaft 1 is larger than the first threshold value a. This determination is based on “(AB) _PP .Gtoreq.a ". If the result of this determination is that the whirling amount of the metal band winding shaft 1 is larger than the first threshold value a, the process proceeds to step S46, in which the gain of the EPC device (not shown) is lowered to lower the sensitivity. Adjust in the direction you want.
[0042]
Thereafter, the process proceeds to step S47, and it is determined whether the whirling amount of the metal band winding shaft 1 is larger than the second threshold value b. This determination is based on “(AB) _PP .Gtoreq.b ". If the result of this determination is that the whirling amount of the metal band winding shaft 1 is larger than the second threshold value b, the process proceeds to step S48, where the position of the reel front roll 22 is controlled.
[0043]
The position control of the reel front roll 22 generates an anti-phase component signal for canceling the whirling of the metal band winding shaft 1, and outputs the anti-phase component signal to the position control actuator 21, and This is performed by applying an antiphase component to the sheet metal strip via the roll 22.
[0044]
Next, proceeding to step S49, it is determined whether or not the whirling amount of the metal band winding shaft 1 is larger than a third threshold value c. This determination is based on “(AB) _PP .Gtoreq.c ". If the result of this determination is that the whirling amount of the metal band winding shaft 1 is larger than the third threshold value c, the process proceeds to step S50, and control for automatically dividing the coil is performed.
[0045]
As described above, when the whirling amount of the metal band winding shaft 1 becomes larger than the third threshold value c, the coil is automatically divided, so that a flaw caused by the coil becoming thicker is reduced. Occurrence can be prevented. Thereby, it is possible to reliably prevent the thin metal band having the flaws from entering the coil.
[0046]
FIG. 5A shows the displacement amount on the drive side 2 side and the displacement amount on the work side 3 side. FIG. 5B shows the result of FFT analysis of the displacement on the work side 3 side, and FIG. The result of FFT analysis of the displacement on the side 2 side is shown.
[0047]
FIG. 6 shows how the FET reading changes depending on the presence or absence of whirling. In FIGS. 5 and 6, f0 indicates the metal band winding shaft 1 makes one rotation (360 °), 2f0 indicates the metal band winding shaft 1 rotates by half (180 °), and 3f0 indicates the metal band. Band take-up shaft 1 shows 1/3 turn (120 °), 4f0 shows metal band take-up shaft 1 turns 1/4 turn (90 °), and 5f0 shows metal band take-up shaft 1 turns 1/5 turn. (72 °).
[0048]
As is apparent from these drawings, it is understood that the whirling amount of the metal band winding shaft 1 increases as the difference between the diameter on the work side 3 side and the diameter on the drive side 2 increases. Therefore, the winding device for a thin metal band according to the present embodiment detects an increase in the amount of whirling of the metal band winding shaft 1 as described above, and predicts the occurrence of a flaw. ing. Further, when the occurrence of the scratch is predicted, the vibration of the coil is suppressed by giving the opposite phase vibration to the reel front roll 22 to cancel the phase difference.
[0049]
When the amount of whirling of the metal band take-up shaft 1 becomes large and the phase difference cannot be canceled even by controlling the position of the roll 22 in front of the reel, the operation of the automatic cutting machine 25 is controlled to change the coil. The automatic cutting prevents the scratches from occurring, and also prevents the thin metal band having the scratches from entering the coil.
[0050]
(Example)
Next, an embodiment in which a coil is manufactured using the thin metal strip winding device of the present invention will be described with reference to FIGS.
FIG. 7A shows an example in which a thin metal strip having a thickness of 0.2 mm and a width of 880 mm is wound to produce a coil having an outer diameter of 600 mm, 1100 mm, and 1400 mm. In this case, when the outer diameter was 600 mm and 1100 mm, the speed of the metal band winding shaft 1 was 750 mpm, and when the outer diameter was 1400 mm, the speed of the metal band winding shaft 1 was 650 mpm. In this case, no difference was observed between the diameter on the work side 3 side and the diameter on the drive side 2 side, and no flaw was generated.
[0051]
FIG. 7 (b) shows that a thin metal strip having a thickness of 0.28 mm is wound to produce a coil having an outer diameter of 600 mm and 1100 mm, and a thin metal strip having a width of 0.20 mm and a width of 766 mm is wound to 1400 mm. The example which manufactured the coil of FIG. In this case, when the coil outer diameter is 600 mm, the difference between the diameter on the work side 3 side and the diameter on the drive side 2 side is 1.1 mm, and when the coil outer diameter is 1100 mm, and when the coil outer diameter is 1400 mm In this case, the difference between the diameter on the work side 3 side and the diameter on the drive side 2 side was 1.3 mm. In each case, since the whirling amount was small, no flaw was generated in this case as well.
[0052]
FIG. 7C shows an example in which a thin metal strip having a thickness of 0.32 mm and a width of 790 mm is wound to produce coils having outer diameters of 600 mm, 1100 mm and 1400 mm. In this case, when the coil outer diameter is 600 mm, the difference between the diameter on the work side 3 side and the drive side 2 side is 0.9 mm, and when the coil outer diameter is 1100 mm, the diameter on the work side 3 side. When the coil outer diameter was 1400 mm, the difference between the diameter on the work side 3 and the diameter on the drive side 2 was 2.2 mm. Therefore, in this case, in the case of the coil having the coil outer diameter of 600 mm, the whirling amount was small, so that no flaw was generated. However, in the case of the coil having the coil outer diameter of 1100 mm and the coil of 1400 mm, the whirling amount was large. Therefore, scratches occurred.
[0053]
FIG. 7D shows an example in which a thin metal strip having a thickness of 0.35 mm and a width of 819 mm is wound to produce coils having outer diameters of 600 mm, 990 mm and 1200 mm. In this case, when the coil outer diameter is 600 mm, the difference between the diameter on the work side 3 side and the drive side 2 side is 1.0 mm, and when the coil outer diameter is 990 mm, the diameter on the work side 3 side is When the coil outer diameter was 1200 mm, the difference between the diameter of the work side 3 and the diameter of the drive side 2 was 2.8 mm. In this case as well, in the case of the coil having the coil outer diameter of 600 mm, the whirling amount was small, so that no flaw was generated. However, in the case of the coil having the coil outer diameter of 850 mm and the coil of 1200 mm, the whirling amount was large. Therefore, scratches occurred.
[0054]
FIG. 8 shows an example of the measurement result of the reel outer diameter profile. In the example shown in FIG. 8A, the outer diameter hardly changes on both the work side 3 and the drive side 2 during one rotation of the metal band winding shaft 1 (tension reel), and the mandrel (metal band) The outer diameter of the take-up shaft) is flat, indicating that roundness is secured.
[0055]
FIG. 8B shows a change in the outer diameter of about 1.13 mm at the center of the rubber sleeve. In addition, in the segment portion, the sub-segment has a depression of about 1.0 mm, and it can be seen that the outer diameter of the rubber sleeve is deformed at the same position as the segment of the mandrel.
[0056]
In the above-described embodiment, when the whirling amount of the metal band winding shaft 1 is larger than the second threshold value b as a result of the determination in step S47 in FIG. 4, the position of the reel front roll 22 is determined in step S48. An example in which control is performed has been described. However, instead of performing the position control of the reel front roll 22, the vibration generator 23 is operated to apply an anti-phase vibration to the sheet metal strip so that the change in the shape of the sheet metal strip is returned to normal. The amount of whirling of the metal band winding shaft 1 may be reduced to suppress generation of scratches.
[0057]
The vibration generator 23 can be configured using, for example, a wiping device. In this case, an air is blown to apply a vibration of opposite phase to the thin metal strip.
[0058]
The above-described embodiment shows an example in which the coil 5 is manufactured by directly winding a thin metal band on the rubber sleeve 4. However, as shown in FIGS. 12A to 12E, the coil 5 is manufactured by inserting the inner diameter sleeve 4a on the rubber sleeve 4 and winding a thin metal band on the inner diameter sleeve 4a. I have.
[0059]
The inner diameter sleeve 4a is formed of iron, aluminum, paper, or the like, and is removed together with the coil 5 from the rubber sleeve 4 after winding the thin metal band.
[0060]
When the inner diameter sleeve 4a is used as described above, (a) measurement of the roundness of the rubber sleeve 4 → (b) as a result of this measurement, if the predetermined roundness cannot be obtained, open the mandrel. Adjustment of degree → (c) If the predetermined roundness cannot be obtained even after the adjustment, the rubber sleeve 4 is replaced.
[0061]
Next, (d) the inner diameter sleeve 4a is loaded on the rubber sleeve 4, and the roundness of the inner diameter sleeve 4a is measured. → (e) If the predetermined roundness is not obtained as a result of the above measurement, the inner diameter sleeve 4a is replaced.
[0062]
As described above, after the roundness of the winding shaft is within the predetermined range, (f) the winding of the thin metal band is started, and the amount of deflection is measured by detecting the outer diameter of the coil 5. To do.
[0063]
FIG. 10 is a block diagram illustrating an example of a computer system that can configure the arithmetic device 15.
The computer system 650 includes a CPU 651, a ROM 652, a RAM 653, a keyboard controller (KBC) 655 of a keyboard (KB) 659, a CRT controller (CRTC) 656 of a CRT display (CRT) 660 as a display unit, and a hard disk ( An HD (HD) 661 and a disk controller (DKC) 657 of a flexible disk (FD) 662 and a network interface controller (NIC) 658 for connection to the network 670 are communicably connected to each other via a system bus 654. Configuration.
[0064]
The CPU 651 comprehensively controls each component connected to the system bus 654 by executing software stored in the ROM 652 or the HD 661 or software supplied from the FD 662.
That is, the CPU 651 reads out a processing program according to a predetermined processing sequence from the ROM 652, the HD 661, or the FD 662 and executes the read out processing program, thereby performing control for realizing the operation in the present embodiment.
[0065]
The RAM 653 functions as a main memory or a work area of the CPU 651.
The KBC 655 controls an instruction input from the KB 659 or a pointing device (not shown).
The CRTC 656 controls display on the CRT 660.
The DKC 657 controls access to the HD 661 and the FD 662 that store a boot program, various applications, an edit file, a user file, a network management program, and a predetermined processing program in the present embodiment.
The NIC 658 exchanges data with a device or a system on the network 670 in two directions.
[0066]
(Another embodiment of the present invention)
Note that the control device of the above-described sheet metal strip winding device of the present embodiment is configured by a computer CPU or an MPU, a RAM, a ROM, or the like, and a program stored in the RAM or the ROM operates. This can be achieved by doing
[0067]
Therefore, the present invention can be realized by recording a program that causes a computer to perform the above functions on a recording medium such as a CD-ROM, and reading the program into the computer. As a recording medium for recording the above program, a flexible disk, a hard disk, a magnetic tape, a magneto-optical disk, a nonvolatile memory card, or the like can be used in addition to the CD-ROM.
[0068]
Further, the functions of the above-described embodiments are realized not only by the computer executing the supplied program, but also the program cooperates with an operating system (OS) or other application software running on the computer. When the functions of the above-described embodiments are realized, or when all or a part of the processing of the supplied program is performed by a function expansion board or a function expansion unit of a computer to realize the functions of the above-described embodiments. Such a program is also included in the embodiment of the present invention.
[0069]
Further, in order to use the present invention in a network environment, all or some of the programs may be executed on another computer. For example, the screen input processing may be performed by a remote terminal computer, and various determinations and log recording may be performed by another center computer or the like.
[0070]
【The invention's effect】
As described above, according to the present invention, when a coil is manufactured by winding a sheet metal band having been subjected to a predetermined process, a drive shaft of a winding shaft for winding the sheet metal band is used. At least a first laser sensor for detecting a take-up diameter and a second laser sensor for detecting a take-up diameter on the work side of the take-up shaft are provided. Since the phase difference with the amount of runout on the side is detected, the roundness of the metal band winding shaft can be measured continuously and with high accuracy from the start to the end of winding of the coil. . As a result, the coil can always be wound in a state where the whirling amount is small, and the generation of scratches can be prevented, and the yield in coil manufacturing can be greatly improved.
[0071]
According to another feature of the present invention, the roundness of a rubber sleeve inserted into a winding shaft for winding a thin metal band is detected, and the rubber sleeve is detected based on the detection result. Since the roundness is adjusted, the roundness of the winding shaft immediately before starting to wind the metal band can be detected and adjusted with high accuracy.
[0072]
According to another feature of the present invention, the roundness of the winding shaft is detected via the inner diameter sleeve inserted in the rubber sleeve, so that the inner diameter sleeve is defective. In this way, it is possible to prevent the inconvenience caused by this, and to always wind the coil in a state where the whirling amount is small.
[0073]
Further, according to another feature of the present invention, a phase difference between the drive-side shake amount and the work-side shake amount of the winding shaft detected by the roundness detecting means is calculated, and the calculated difference is calculated. Since an alarm is output when the phase difference reaches a predetermined value, it is possible to take appropriate measures before a scratch due to whirling of the metal band winding shaft occurs, and A decrease in yield due to flaws can be minimized.
[0074]
According to another feature of the present invention, the gain of the metal band edge position control device is adjusted when the phase difference calculated by the phase difference calculating means reaches a predetermined value. Scratch flaws caused by inappropriate gain of the edge position control device can be prevented.
[0075]
Further, according to another feature of the present invention, when the phase difference calculated by the phase difference calculating means has reached a predetermined value, an opposite-phase vibration is applied to the thin metal strip to reduce the phase difference. Since the number is reduced, it is possible to significantly suppress the scratches caused by the position of the roll in front of the reel and the shape of the thin metal strip.
[0076]
According to another feature of the present invention, when the phase difference calculated by the phase difference calculating means reaches a predetermined value, a metal band cutting device for cutting the thin metal band is operated. Since the coil is split in the middle, it is possible to suppress the occurrence of scratches due to thickening of the coil and to improve the yield, and to greatly reduce the possibility that the thin metal strip with the scratches will be mixed into the coil. Can be reduced.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an embodiment of the present invention and showing a schematic configuration of a winding device for a sheet metal strip.
FIG. 2 is a schematic diagram showing a schematic configuration of a strip coil manufacturing line in which a sheet metal strip winding device according to an embodiment is disposed, as viewed from a lateral direction.
FIG. 3 is a schematic diagram showing a schematic configuration of a strip coil manufacturing line in which the apparatus for winding a sheet metal strip according to the embodiment is provided, and is viewed from above.
FIG. 4 is a flowchart illustrating an operation of the thin metal strip winding device according to the embodiment;
FIG. 5 is a characteristic diagram illustrating an output waveform of a laser displacement meter and an FFT analysis result.
FIG. 6 is a characteristic diagram illustrating values when the metal band winding shaft has whirling and values when there is no whirling.
FIG. 7 is a diagram showing a result of an example in which a coil is manufactured using the thin metal strip winding device of the embodiment.
FIG. 8 is a diagram illustrating an outer diameter profile of a metal band winding shaft.
FIG. 9 is a block diagram illustrating an example of a computer system that can configure the arithmetic device according to the embodiment;
FIG. 10 is a block diagram illustrating an example of a computer system that can configure an arithmetic device.
FIG. 11 is a diagram showing a manner in which a strip is wound around a belt-wrapper type mandrel.
FIG. 12 is a diagram illustrating an example of a process when a coil is manufactured using an inner diameter sleeve.
[Explanation of symbols]
1 Metal band winding shaft
2 Driveside
3 Workside
4 Rubber sleeve
5 coils
11 First laser sensor
12 Second laser sensor
13 Reel rotation detector
14 Pulse generator
15 Arithmetic unit
16 Coil outline display device
17 Alarm output device

Claims (18)

A sheet metal strip winding device for winding a sheet metal strip subjected to a predetermined process to manufacture a coil,
A first laser sensor for detecting a drive-side winding diameter of the winding shaft for winding the thin metal strip, and a second laser sensor for detecting a work-side winding diameter of the winding shaft for the winding shaft. A laser distance meter comprising at least:
A winding device for a sheet metal strip, comprising: a roundness detecting means for detecting a phase difference between a drive-side deflection amount and a work-side deflection amount of the winding shaft. A sheet metal strip winding device for winding a sheet metal strip subjected to a predetermined process to manufacture a coil,
A first laser sensor for detecting a drive-side winding diameter of the winding shaft for winding the thin metal strip, and a second laser sensor for detecting a work-side winding diameter of the winding shaft for the winding shaft. A laser distance meter comprising at least:
A roundness detecting means for detecting the roundness of the winding shaft via a rubber sleeve inserted in the winding shaft for winding the thin metal band,
And a roundness adjusting means for adjusting the roundness of the rubber sleeve based on a detection result of the roundness detecting means. The winding device for a thin metal band according to claim 2, wherein the roundness detecting means detects a winding diameter near both end portions of the thin metal band wound on the winding shaft. 3. The winding of a thin metal strip according to claim 2, wherein the roundness detecting means detects the roundness of the winding shaft via an inner diameter sleeve inserted in the rubber sleeve. apparatus. Phase difference calculating means for calculating the phase difference between the drive side shake amount and the work side shake amount of the winding shaft detected by the roundness detecting means,
5. An alarm output means for outputting an alarm to an alarm output device when the phase difference calculated by the phase difference calculation means has reached a predetermined value. An apparatus for winding a sheet metal strip as described above. 6. The thin metal strip according to claim 5, further comprising gain adjusting means for adjusting the gain of the metal strip edge position control device when the phase difference calculated by the phase difference calculating means has reached a predetermined value. Take-up device. When the phase difference calculated by the phase difference calculating means reaches a predetermined value, the phase difference canceling device controls the thin sheet metal band to reduce the phase difference by applying an opposite-phase vibration to the sheet metal strip. The winding device for a sheet metal strip according to claim 5, further comprising an anti-phase control means for outputting a signal. When the phase difference calculated by the phase difference calculating means reaches a predetermined value, a cutting control for operating a metal band cutting device for cutting the thin sheet metal band to perform intermediate division of the coil. The winding device for a sheet metal strip according to any one of claims 5 to 7, further comprising means. A method for winding a sheet metal strip for manufacturing a coil by winding the sheet metal strip subjected to a predetermined process,
A first laser sensor for detecting a drive-side winding diameter of the winding shaft for winding the thin metal strip, and a second laser sensor for detecting a work-side winding diameter of the winding shaft for the winding shaft. Using a laser distance meter having at least a roundness detection step of detecting a phase difference between a drive-side runout amount and a workside-side runout amount of the winding shaft. Winding method. A method for winding a sheet metal strip for manufacturing a coil by winding the sheet metal strip subjected to a predetermined process,
A first laser sensor for detecting a drive-side winding diameter of the winding shaft for winding the thin metal strip, and a second laser sensor for detecting a work-side winding diameter of the winding shaft for the winding shaft. A roundness detection step of detecting the roundness of the winding shaft via a rubber sleeve inserted into the winding shaft for winding the thin metal band using a laser distance meter having at least
A roundness adjusting step of adjusting the roundness of the rubber sleeve based on the detection result of the roundness detecting step. The winding method for a thin metal strip according to claim 10, wherein the roundness detecting step detects a winding diameter near both ends of the thin metal strip wound on the winding shaft. The winding of a sheet metal strip according to claim 10, wherein the roundness detecting step detects the roundness of the winding shaft via an inner diameter sleeve inserted in the rubber sleeve. Method. A phase difference calculating step of calculating a phase difference between a drive side shake amount and a work side shake amount of the winding shaft detected by the roundness detection step;
13. An alarm output step of outputting an alarm to an alarm output device when the phase difference calculated in the phase difference calculation step has reached a predetermined value. Winding method. 14. The thin metal strip according to claim 13, further comprising a gain adjustment step of adjusting a gain of the metal strip edge position control device when the phase difference calculated in the phase difference calculation step has reached a predetermined value. Winding method. When the phase difference calculated in the phase difference calculation step has a predetermined value, the phase difference calculation step has an anti-phase control step of reducing the phase difference by applying an anti-phase vibration to the sheet metal band. The method for winding a sheet metal strip according to claim 13, wherein: When the phase difference calculated in the phase difference calculation step has reached a predetermined value, a cutting control for controlling a metal band cutting device for cutting the thin metal band to perform intermediate division of the coil. The method for winding a thin metal band according to any one of items 11 to 13, further comprising a step. A computer program for causing a computer to execute a winding method of a sheet metal strip for manufacturing a coil by winding the sheet metal strip subjected to a predetermined process,
A first laser sensor for detecting a drive-side winding diameter of the winding shaft for winding the thin metal strip, and a second laser sensor for detecting a work-side winding diameter of the winding shaft for the winding shaft. A computer program for causing a computer to execute a roundness detection step of detecting a phase difference between a drive-side runout amount and a workside-side runout amount of the winding shaft by using A computer-readable recording medium on which the computer program according to claim 17 is recorded.

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