JP4349982B2 - Wire rod winding method and apparatus - Google Patents

Description

  This invention improves the winding form of the wire of the take-up reel by the traverse control device in the wire take-up device used when winding a thin wire such as a metal wire or an optical fiber around the take-up reel at a high speed. The present invention relates to a wire winding method and an apparatus for reducing damage to a wire.

  Conventionally, there are a pulley traverse method and a bobbin traverse method as a method for winding a thin wire such as a metal wire or an optical fiber around a winding bobbin.

  The pulley traverse method is a method in which a wire rod is wound around a winding bobbin when the final guide pulley traverses as a traverse guide pulley. At this time, the reverse position of the traverse guide pulley is adjusted so that the wire is aligned and wound from one brim to the other brim of the take-up bobbin.

  On the other hand, the bobbin traverse method is a method in which a wire rod is wound around a winding bobbin by traversing the winding bobbin. At this time, the reversing position of the winding bobbin is adjusted so that the wire is aligned and wound from one brim part of the winding bobbin to the other brim part.

  In both of the above-described methods, the winding bobbin is controlled in rotation speed by the line speed and the position signal of the dancer unit, and follows the winding bobbin winding thickness and line linear speed fluctuation. .

  Referring to FIGS. 5 and 6, in the conventional bobbin traverse type winding device 101, the wire 103 is fed from a feeding unit (not shown), and is wound through a guide pulley 105, a dancer unit 107, and a guide pulley 105. The take-up device 101 takes up the take-up bobbin 109a. The speed fluctuation of the winding bobbin 109a increases or decreases the stored dose between a delivery unit (not shown) and the winding bobbin 109a, and the dancer part 107 moves up and down.

  As shown in FIG. 5, the fluctuation data A of the vertically moving position of the dancer unit 107 is sent to the control unit 111 as indicated by a broken line A by the detector. As shown by the broken line B from the control unit 111 to the winding motor 113, a rotational speed command B is given, and winding is performed by adjusting the rotational speed of the winding motor 113.

  On the other hand, the winding device 101 always detects the traverse position data D by the rotary encoder 115 and sends it to the control unit 111 as indicated by the broken line D. A rotation speed command is given from the control unit 111 to the traverse motor 117 as shown by a broken line C so as to reverse at a predetermined reverse position so that the wire 103 is uniformly wound around the winding bobbin 109a. I have to.

  However, there is no particular problem when the wire speed of the wire 103 is low. However, when the wire speed is high, the winding rotation speed and the traverse speed are also high, and even a slight shift in the reverse position causes “winding failure”. That is, the winding shape is thickened or thinned at the edges 109b and 109c on both sides of the winding bobbin 109a, resulting in a “winding failure” where the winding is uneven.

  Therefore, when the traverse position data D is within a predetermined range from the edge 109b, 109c of the winding bobbin 109a, the position information A of the dancer unit 107 is taken into the control unit 111 from the detector, The displacement from the reference position of the dancer unit 107 is monitored, and the control unit 111 determines the winding state in which the wire 103 is wound around the winding bobbin 109a based on the position information A of the dancer unit 107. The position information A is fed back to the determination of the traverse reversal position between the wire 103 and the winding bobbin 109a so that the traverse reversal position is appropriately changed (corrected).

As a method for determining the winding state, for example, the position data of the dancer unit 107 in the vicinity of each of the edges 109b and 109c stored in the control unit 111 are respectively moving averaged, and the moving average value of the dancer unit 107 is set in advance. It is determined whether or not the displacement threshold (displacement threshold) has been exceeded. Based on this determination, when the moving average value exceeds the displacement threshold value, feedback is performed so as to change and correct the traverse inversion position (see, for example, Patent Document 1).
JP 2003-341932 A

  By the way, in the conventional wire rod winding method, when the moving average value exceeds the displacement threshold value by comparing the moving average value of the dancer unit 107 and the displacement threshold value, just changing the traverse reversing position, There is a problem that the winding form of the wire 103 of the winding bobbin 109a may not be flat.

  That is, when the dancer unit 107 is controlled, feedback control is performed. For example, when the dancer unit 107 is raised, the dancer 107 is controlled to lower the winding rotation, and hunting is surely generated in the vertical direction. For this reason, there is a problem in that it may not be possible to determine whether the winding of the wire 103 is going up or down in the vicinity of each edge 109b, 109c of the take-up bobbin 109a, and erroneous detection may occur.

  When this erroneous detection occurs, the winding shape becomes worse. This phenomenon is a problem that occurs remarkably when the wire 103 has a small diameter, is wound at a high speed, and the tension of the wire 103 must be kept low.

  If the winding shape is deteriorated, the wire rod 103 rises or falls on the edges 109b and 109c of the winding bobbin 109a, so that the transmission loss of the optical fiber is deteriorated due to partial winding pressure or microbending. Further, there is a problem that the optical fiber surface is damaged due to rubbing of the end surfaces of the edges 109b and 109c, and the optical fiber surface is damaged.

  The present invention has been made to solve the above-described problems.

The wire rod winding method of the present invention is characterized in that the wire rod is traversed in the axial direction of the winding bobbin perpendicular to the wire feed direction after passing through a dancer section that adjusts the fluctuation of the wire speed of the wire rod fed out. When winding on the winding bobbin,
The maximum value and the minimum value of the position data of the dancer part in the detection position range set in advance from the heel end of the winding bobbin are detected and stored in the control device, and the position data of the dancer part outside the detection position range Is detected and the moving average value is calculated, and the first absolute value of the difference between the moving average value and the maximum value is compared with the second absolute value of the difference between the moving average value and the minimum value. Thus, the winding form of the winding bobbin is determined, and the traverse position of the winding bobbin is changed and corrected based on the determination of the winding form of the wire.

  In the wire winding method of the present invention, the wire winding form of the winding bobbin is determined based on the larger one of the first absolute value and the second absolute value as the detection direction. When the first absolute value is large, it is preferable to determine the direction in which the wire swells with respect to the moving average value, and when the second absolute value is large, it is determined as the direction in which the wire sag with respect to the moving average value. .

  Moreover, the wire rod winding method according to the present invention is the wire rod winding method, wherein the first threshold value for determining the bulge of the wire rod with respect to the moving average value, and the second threshold value for determining the drop of the wire rod, , And the traverse position of the take-up bobbin is changed and corrected so that the first absolute value and the second absolute value fall within the corresponding first threshold value and second threshold value range, respectively. preferable.

The wire rod winding device according to the present invention includes a dancer portion that adjusts fluctuations in the wire speed of a wire rod that is fed out, and a winding portion that winds while relatively traversing in an axial direction perpendicular to the supply direction of the wire rod that has passed through the dancer portion. A take bobbin and a position detection device for detecting position data of the dancer part;
The position data of the dancer part detected by the position detection device, the memory storing the maximum value and the minimum value of the position data in the detection position range set in advance from the end of the winding bobbin, and the detection position range A calculation device that detects the position data of the dancer part other than the above and calculates a moving average value thereof, a first absolute value of a difference between the moving average value and the maximum value, the moving average value and the minimum value A comparison / determination device for determining the winding form of the winding bobbin by comparing the second absolute value of the difference with the command, and a command for changing and correcting the traverse position of the winding bobbin based on the determination of the winding form of the wire A control unit including a command unit for providing
It is characterized by comprising.

  Further, according to the wire winding device of the present invention, in the wire winding device, the comparison judgment device of the control device sets the larger one of the first absolute value and the second absolute value to the wire rod of the winding bobbin. Judging as the direction of detection of the winding shape, when the first absolute value is large, the swell direction of the wire relative to the moving average value, and when the second absolute value is large, the wire rod sag relative to the moving average value The direction is preferred.

  In the wire rod winding device according to the present invention, in the wire rod winding device, the control device may be configured to determine a first threshold value for determining the rising of the wire relative to the moving average value, and a first threshold for determining a drop in the wire. 2 threshold values are set in advance, and the traverse position of the winding bobbin is set so that the first absolute value and the second absolute value fall within the corresponding first threshold value and second threshold value range, respectively. It is preferable to give a command to change and correct.

  As will be understood from the means for solving the problems as described above, according to the present invention, since the winding of the wire rod in the vicinity of the collar portion of the winding bobbin is swelled, there is no false detection of whether it is depressed, Even if the winding speed of the wire rod is high, the wire rod can be surely and quickly corrected so that the wire rod is wound in the same flat state as the normal winding in the vicinity of the flange portion of the winding bobbin. Therefore, the transmission loss of the optical fiber due to partial winding pressure or microbending can be reduced, and the strength failure of the wire due to rubbing of the end face of the flange portion can be reduced.

  Embodiments of the present invention will be described below with reference to the drawings.

  Referring to FIGS. 1 and 2, the wire winding method according to this embodiment is applied to both a pulley traverse method and a bobbin traverse method. In this embodiment, a bobbin traverse type wire winding device 1 will be described as an example.

  In the bobbin traverse type wire rod winding device 1, a thin wire rod 3 such as a metal wire or an optical fiber is fed from a feed portion (not shown), and the wire rod 3 is passed through a guide pulley 5, a dancer portion 7 and a guide pulley 5. The winding bobbin 11 is wound by the rotational drive of the winding motor 9 while traversing relatively in the axial direction of the winding bobbin 11 orthogonal to the supply direction of the wire 3. The traverse range TL of the winding bobbin 11 is a distance range between the end surfaces of the flange portions 13A and 13B of the winding bobbin 11, and the wire 3 is adjusted so as to reverse the traverse at the flange portions 13A and 13B. Further, the speed fluctuation in the winding bobbin 11 increases or decreases the stored dose between a delivery unit (not shown) and the winding bobbin 11, and the vertical movement of the dancer unit 7.

  Here, the movement of the dancer unit 7 will be described. The reference position N is referred to as a “neutral point” with the position of the dancer unit 7 being wound in an appropriate winding state as a reference. However, since the reverse position of the traverse is shifted outward from the appropriate position of the flange portions 13A and 13B of the take-up bobbin 11, the wire 3 is more wound and thickened at the flange portions 13A and 13B. Is formed, the tension applied to the wire 3 increases, so that the wire 3 stored in the dancer portion 7 is released. That is, the dancer part 7 moves upward from the neutral point N in FIG.

  On the contrary, since the traverse reversal position is shifted inward from the appropriate position of the flange portions 13A and 13B of the winding bobbin 11, the wire 3 is wound less at the edge of the winding bobbin 11 to form a thin shape. Then, since the tension applied to the wire 3 is reduced, the dancer unit 7 is in a direction in which the wire 3 is stored. That is, the dancer unit 7 moves downward from the neutral point N in FIG.

  As shown in FIG. 1, the fluctuation data A (position data) of the vertical movement position with respect to the neutral point N of the dancer unit 7 is detected by the position detector 15 and controlled as indicated by the solid line A. After being A / D converted by the A / D converter 19 of the device 17, it is sent to the CPU 21 as a central processing unit.

The CPU 21 of the control device 17 has an input device 23 and a display device 25 for inputting various data such as a detection position range S set in advance from the end surfaces of the flange portions 13A and 13B of the winding bobbin 11 and a program. The memory 27 for storing the input data and the data of the maximum value A _MAX and the minimum value A _MIN of the variation data A detected by the position detector 15, and the data in the memory 27 and the position detector 15 An arithmetic unit 29 for calculating the moving average value D ₀ of the position data A of the dancer unit 7 based on the data, the first absolute value of the difference between the moving average value D ₀ and the maximum value A _MAX, and the moving average A comparison / determination device 31 that determines the winding form of the winding bobbin 11 by comparing the second absolute value of the difference between the value D ₀ and the minimum value A _MIN, and based on the determination of the winding form of the wire Accordingly, a command unit 33 for changing and correcting the traverse position of the take-up bobbin 11 and a command unit 33 for providing other commands are connected.

  A rotation speed command B is given to the winding motor 9 from the command unit 33 of the control device 17 as shown by a solid line B, and winding is performed by adjusting the rotation speed of the winding motor 9. Is called.

  On the other hand, in the wire rod winding device 1, the traverse position data C is always detected by the traverse position detecting rotary encoder 35 and is sent to the control device 17 as indicated by the solid line C. Further, the command section 33 of the control device 17 gives a rotation speed command D as shown by the solid line D to the traverse motor 37 so as to reverse at the determined traverse reversal position. Is wound around the winding bobbin 11 uniformly.

  A wire winding method for uniformly winding the wire 3 around the winding bobbin 11 will be described as a point constituting the main part of the embodiment of the present invention.

In the wire winding method, as shown in FIGS. 1 and 4, the winding shape usually deteriorates in the vicinity of the flanges 13 </ b> A and 13 </ b> B of the winding bobbin 11. In particular, the maximum value A _MAX and the minimum value A _MIN of the variation data A of the dancer unit 7 when it is within the preset detection position range S from the end surfaces of the flange portions 13A and 13B of the winding bobbin 11 are detected. Yes.

Further, the fluctuation data A of the dancer unit 7 when the winding bobbin 11 is wound with the normal winding other than the vicinity of the flanges 13A and 13B is detected by the position detector 15 and the memory 27 of the CPU 21 of the control device 17 is detected. And is calculated and averaged by the arithmetic unit 29. This moving average value D ₀ is the position data of the neutral point N described above, and is “reference data D ₀ ”.

As shown in FIG. 3, the maximum value A _MAX and the minimum value A _MIN of the variation data A of the dancer unit 7 in the detection position range S are detected by the position detector 15 and Stored in the memory 27. Since the detection range in FIG. 3 is the reciprocal length when the traverse is reversed, the detection range in the detection direction F of the variation data A is twice (2S) the detection position range S.

Further, “threshold values” that are criteria for determining whether the winding is normal or rising are set in advance, and are input by the input device 23. In this embodiment, the raised side "Thresholds" as the first threshold value D _1, to the drop side "Threshold" and the second threshold D _2.

If dancer unit 7 which is a phenomenon that exceeds one of the threshold D ₁ or D ₂ occurs, since the feedback control in the opposite direction in order to suppress this, the hunting caused by its inertia. Therefore, within the detection position range S, the maximum value A _MAX and the minimum value A _MIN of the variation data A of the dancer unit 7 are detected. That is, when the winding bobbin 11 is not occurring normal wire winding shape, so that the first threshold value D ₁ and the second variation data A exceeds the threshold D ₂ in the detection position range S occurs . However, the variation data A due to the hunting is necessarily a numerical value lower than the numerical value that first exceeds the threshold value D ₁ or D _{2 due} to the nature of the operation of the dancer unit 7.

Accordingly, the first absolute value and the second detection direction and absolute value, the larger the difference between the minimum _{A MIN} to the second threshold _{D 2} of the difference between the maximum value _{A MAX} for the first threshold value _{D 1} By doing so, it is possible to prevent erroneous detection when determining whether the direction is the rising direction or the falling direction with respect to the normal winding.

That is, the data raised a first absolute value of the difference between the maximum value _{A MAX} for the first threshold value _{D 1} and _{d 3,} drop a second absolute value of the difference between the minimum _{A MIN} to the second threshold _{D 2} When the data and _{d 4,}
Swelling data d ₃ = | (A _MAX −D ₀ ) −D ₁ |
Drop data d ₄ = | (A _MIN −D ₀ ) −D ₂ |
It becomes.

The control device 17 compares the data d ₃ and d ₄ described above, and if d ₃ > d ₄ , it is determined that the wire winding shape is in the rising direction, and conversely, if d ₃ <d ₄ It is judged that the wire winding is in the down direction.

For example, as shown in FIG. 4, when swell occurs in the vicinity of the flanges 13A and 13B of the winding bobbin 11, the fluctuation data A (position data) of the dancer part 7 is shown in FIG. It becomes like this. As an example at this time, the reference data D ₀ is, for example, 10, the first threshold value D ₁ is +3, the second threshold value D ₂ is, for example, −3, and the maximum value A _MAX of the fluctuation data A is, for example, 20 and the minimum value A _MIN of the variation data A indicates 5, for example,
Swelling data d ₃ = | (A _MAX −D ₀ ) −D ₁ |
= | (20-10) -3 | = 7
Drop data d ₄ = | (A _MIN −D ₀ ) −D ₂ |
= | (5-10)-(-3) | = 2
It becomes.

Therefore, in this case, since d ₃ > d _4, it is determined that the wire winding shape is in the rising direction.

  When it is determined that the wire winding shape is in the rising direction as described above, the control device 17 sets the traverse reversal position of the winding bobbin 11 with respect to the traverse motor 37 to the outside of the winding bobbin 11 (right side in FIG. 4). The rotation speed command D is given so as to widen.

As a result, the maximum value A _MAX and the minimum value A _MIN of the variation data A of the dancer unit 7 approach the numerical value of the reference data D ₀ . In other words, variation data A dancer unit 7 is to fit between the first threshold value D ₁ and the second threshold value D _2, stable winding shape of the wire 3 in a flat in the take-up bobbin 11 Can be realized.

On the other hand, if d ₃ <d ₄ and it is determined that the wire winding shape is in the falling direction, the traverse reversal position of the winding bobbin 11 is rotated to narrow the inside of the winding bobbin 11 (left side in FIG. 4). A speed command D is given. In this case, since it can be easily understood by considering the phenomenon opposite to the case where the wire winding shape is in the rising direction, a specific description is omitted.

Incidentally, even if, even variation data A dancer unit 7 in one changes and modifications are not fit between the first threshold value D ₁ and the second threshold value D _2, 2 times changes and modifications described above, 3 Repeatedly, it can be surely stabilized.

  From the above, since it is not erroneously detected whether the winding state of the winding bobbin 11 of the wire 3 near the flanges 13A and 13B is raised or lowered, even if the winding speed of the wire 3 is high. In the vicinity of the flanges 13A and 13B of the winding bobbin 11, the wire 3 can be wound in the same flat state as the normal winding. As a result, there is no swell or drop of the wire 3 on the flanges 13A and 13B of the winding bobbin 11, so that transmission loss of the optical fiber due to partial winding pressure or microbending can be reduced.

  In addition, for the above reason, it is possible to reduce the strength failure due to the end surface rubbing of the flange portions 13A and 13B. That is, since it is possible to detect whether the wire winding shape is rising or falling due to a slight displacement of the dancer section 7, it is possible to quickly correct the wire 3 to a flat winding state. Damage can be prevented.

  In addition, this invention is not limited to embodiment mentioned above, It can implement in another aspect by making an appropriate change.

In the example described above, the flange portion 13A, swelling direction or wire winding figure of 13B is the normal winding, or to determine drop direction, the difference between the maximum value A _MAX for the first threshold value D ₁ second 1 The absolute value is the rising data d ₃ and the second absolute value of the difference of the minimum value A _MIN with respect to the second threshold value D ₂ is the falling data d ₄ , but other examples are simply moving average values The first absolute value of the difference of the maximum value A _MAX with respect to D ₀ may be the rising data d ₃ ′, and the second absolute value of the difference of the minimum value A _MIN with respect to the moving average value D ₀ may be the falling data d ₄ ′. Absent.

That is, the rising data d ₃ ′ = | A _MAX −D ₀ |
Drop data d ₄ ′ = | A _MIN −D ₀ |
It can be judged enough.

Also in this case, as in the above-described embodiment, the above-mentioned data d ₃ ′ and d ₄ ′ are compared, and if d ₃ ′> d ₄ ′, it is determined that the wire winding shape is in the rising direction, On the other hand, when d ₃ ′ <d ₄ ′, it is determined that the wire winding shape is in the falling direction.

It is a schematic explanatory drawing of the wire winding apparatus of embodiment of this invention. It is explanatory drawing of the winding process of the wire in the wire winding apparatus of embodiment of this invention. It is the graph which showed the positional data A of the dancer part. FIG. 9 is a diagram illustrating a detection position range in the vicinity of the flange portion of the winding bobbin, and is an explanatory diagram of a raised state in the vicinity of the flange portion of the winding bobbin. It is a schematic explanatory drawing of the conventional wire rod winding device. It is explanatory drawing of the winding process of the wire in the conventional wire winding apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wire rod winding device 3 Wire rod 5 Guide pulley 7 Dancer part 9 Winding motor 11 Winding bobbins 13A and 13B Hook part 15 Position detector 17 Controller 19 A / D conversion part 21 CPU
23 Input Device 25 Display Device 27 Memory 29 Arithmetic Device 31 Comparison Judgment Device 33 Command Unit 35 Rotary Encoder 37 Traverse Motor

Claims (6)

When winding the wire rod around the winding bobbin while traversing relative to the axial direction of the winding bobbin orthogonal to the feeding direction of the wire rod after passing through a dancer section that adjusts the fluctuation of the wire speed of the wire rod fed out,
The maximum value and the minimum value of the position data of the dancer part in the detection position range set in advance from the heel end of the winding bobbin are detected and stored in the control device, and the position data of the dancer part outside the detection position range Is detected and the moving average value is calculated, and the first absolute value of the difference between the moving average value and the maximum value is compared with the second absolute value of the difference between the moving average value and the minimum value. A wire rod winding method characterized in that the wire rod winding form of the winding bobbin is determined and the traverse position of the winding bobbin is changed and corrected based on the determination of the wire rod winding shape.   The wire bobbin winding form of the winding bobbin is determined as the detection direction of the larger one of the first absolute value and the second absolute value, and when the first absolute value is large, the moving average value is The wire winding method according to claim 1, wherein when the second absolute value is large, the wire winding direction is determined with respect to the moving average value.   A first threshold value for determining the rising of the wire rod with respect to the moving average value and a second threshold value for determining the drop of the wire rod are set in advance, and the first absolute value and the second absolute value are respectively set. 3. The wire rod winding method according to claim 1, wherein the traverse position of the winding bobbin is changed and corrected so as to fall within the corresponding first threshold value and second threshold value range. The dancer part that adjusts the fluctuation of the wire speed of the wire to be sent out, the take-up bobbin that is wound while being relatively traversed in the axial direction perpendicular to the supply direction of the wire that has passed through the dancer part, and the position of the dancer part A position detection device for detecting data;
The position data of the dancer part detected by the position detection device, the memory storing the maximum value and the minimum value of the position data in the detection position range set in advance from the end of the winding bobbin, and the detection position range A calculation device that detects the position data of the dancer part other than the above and calculates a moving average value thereof, a first absolute value of a difference between the moving average value and the maximum value, the moving average value and the minimum value A comparison / determination device for determining the winding form of the winding bobbin by comparing the second absolute value of the difference with the command, and a command for changing and correcting the traverse position of the winding bobbin based on the determination of the winding form of the wire A control unit including a command unit for providing
A wire winding device characterized by comprising:   When the comparison determination device of the control device determines the larger one of the first absolute value and the second absolute value as the detection direction of the wire winding shape of the winding bobbin, and when the first absolute value is large The wire rod winding device according to claim 4, wherein the wire rod swells with respect to the moving average value, and the wire rod winding direction is determined with respect to the moving average value when the second absolute value is large. .   The control device presets a first threshold value for determining the rising of the wire relative to the moving average value and a second threshold value for determining the drop of the wire, and the first absolute value and the first threshold value are determined. 6. The command for changing and correcting the traverse position of the take-up bobbin so that the two absolute values fall within the corresponding ranges of the first threshold value and the second threshold value, respectively. Wire winding device.

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