JPH0768006B2 - Automatic control winding method for filament - Google Patents

Description

TECHNICAL FIELD The present invention relates to an automatic control winding method for winding a filament on a bobbin properly.

[Prior Art and Problems] Fine filaments such as enamel wire are wound on bobbins after enamel coating and supplied to the market.

The conventional bobbin winding operation will be described below with reference to FIGS.

The filamentous body 40 is taken up by the take-up capstan 8 of the take-up machine 7, and taken up by the bobbin 20 of the take-up machine 10 via the traverser 11. In the figure, reference numeral 1 denotes a winding motor for rotating the bobbin 20 and winding the tension while the tension of the filamentous body 40 is kept within a certain range.

The traverser 11 is fitted to the spiral shaft 12 rotated by the traverse movement motor 13, and reciprocates left and right in the drawing by the forward and reverse rotations of the spiral shaft 12 so that the linear body 40 is neatly wound around the bobbin 20. 14 and 15 are limit switches for moving the traverser 11 while traversing the linear body 40 and reaching the brim 21 or 22 to reverse the rotation of the motor 13 and move the linear body in the opposite direction. belongs to.

In the above, there is no problem if the limit switches 14 and 15 are accurately installed at the predetermined positions, but the bobbin 20 may not be set properly, the limit switches 14 and 15 may not be set correctly, or the load switches during work may cause problems. As shown in FIG. 9, the collars 21 and 22 may be displaced from their relative positions. In such a state, the accurate traverse reversal operation is not performed, and as shown in FIG. When it is insufficient, a valley V is formed and a winding failure occurs.

In order to prevent the occurrence of such a winding failure, in the current situation, a worker on site frequently monitors the winding bobbin and adjusts the position shift of the limit switch. However, in this way, if the worker adjusts the position of the limit switch one by one with the progress of winding the filamentous body, not only the work becomes very complicated, but also waste of man and time, It was also a major factor leading to higher costs.

[Object of the Invention] The present invention has been made in consideration of the above-mentioned circumstances, and when winding a filamentous body, the above-mentioned adjustment work by man is eliminated, and a healthy winding is automatically performed. The present invention is intended to provide a novel winding control method that can be realized.

[Summary of the Invention] The present invention enables the rotation speed of a bobbin to be input to a calculation control device by a rotation signal, calculates the traverse movement amount necessary for the rotation, and integrates the calculated movement amount per rotation. The basic idea is to traverse while performing the traverse, and issue a reversal command to the traverse when the required number has been reached to reverse the traverse.If the reversal command position is misaligned and the peaks and valleys occur, Takes advantage of the fact that the bobbin rotation speed at the valley becomes faster and that at the mountain becomes slower,
The arithmetic and control unit reads the speed change and automatically increases the traverse movement amount to the valley side and decreases the movement amount to the mountain side, so that the winding state is always in the optimum winding state. Is what makes it possible.

[Embodiment] The present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is an explanatory view showing an outline of a winding device used in the present invention. Reference numeral 1 is a motor for rotating the bobbin 20, and it is suitable to use, for example, a torque motor in the sense that the tension of the filament is kept constant. The motor 1 transmits a rotation signal in the form of a pulse, for example, as the motor 1 rotates, and the arithmetic and control unit 30
The rotation signal A is input to.

Since the rotation of the motor 1, that is, the rotation speed of the bobbin 20 due to the signal A, can be known from the signal A, the outer diameter of the filament 40 to be wound and the winding diameter of the bobbin 20 must be taken into consideration.
Required traverse movement amount per one rotation of the
X0 can be calculated in the arithmetic and control unit 30. Based on the calculation result, the drive signal B is sent to the traverse drive motor 3.
Is output and a drive command is given.

In this embodiment, the bobbin rotating motor 1 is fixed to the fixed base 2
It is assumed that the movable table 4 is reciprocated by the drive of the traverse driving motor 3 as shown by the arrow in the figure. If the guide 9 of the filament 40 is fixed in this way,
The bobbin 20 reciprocates in the axial direction to perform traverse in bobbin winding. However, this is merely an example, and the guide 9 may be reciprocally moved as in the conventional example described above, and the selection in terms of its configuration is not particularly limited. However, the traverse drive motor 3 needs to be able to accurately control the drive amount, that is, the traverse movement amount according to the command of the control device 30, and the rotation speed can be accurately controlled like a pulse motor. Need to be

In FIG. 1, reference numerals 5 and 6 are traverse center position detecting sensors, and in this embodiment, the needles 5 and 6 are configured so that the center point of the traverse, that is, point P to be described later can be seen, and the detection result is controlled as a signal D. Input to the device 30.

Reference numeral 7 is a take-up machine, and 8 is a take-up capstan, which are not particularly different from the conventional example.

Next, a case where the filamentous body is wound by the control method according to the present invention will be described with reference to the drawings.

When the rotation signal A is input to the control device 30 in accordance with the rotation of the bobbin rotating motor 1, the control device 30 detects the rotation speed of the bobbin 20 and the bobbin winding at that time is performed according to a program given in advance. Calculate the optimal traverse movement amount according to the attachment diameter and the diameter of the filament to be wound,
A drive command B is issued to the traverse drive motor 3.

In FIG. 2, X0 is the bobbin 1 thus calculated.
This is the amount of traverse movement per rotation. The value of X0 naturally increases as the diameter of the filament to be wound increases and decreases as it decreases.

The traverse center position detection sensors 5 and 6 described above give the center point P of the entire traverse length 1 with the signal D, and the control device 30 controls the unit traverse movement amount X0 from the center point P toward the collar 21. The traverse drive command B is continuously issued while accumulating. Then, when the cumulative number of X0 reaches the length corresponding to l / 2, the control device 30 issues a reversal command C to reverse the traverse movement. In this way, the center point P is passed again, and the traverse is performed toward the collar 22 on the opposite side, and when the integrated number reaches l / 2, the reversal command C is issued and the collar 2 is again generated.
Traverse to 1.

In the above, there is no problem if the center point P of the traverse and the center point of the bobbin 20 match. However, Bobbin
As shown in Fig. 7, bobbin 20
If the center point (indicated by a dotted line) of FIG. 8 and the center point P of the traverse are deviated from each other, peaks H and valleys V as shown in FIG. 8 are formed, and winding failure occurs.

In order to eliminate the winding failure as described above, the following control may be performed.

The rotation speed signal A inputs the rotation speed of the bobbin 20 that is winding the filamentous body 40 at a constant tension to the arithmetic and control unit 30, which detects the average winding rotation speed N0. If, during winding, the valley V as shown in FIG. 8 is formed near the collar of the bobbin.
Alternatively, when the ridge H is generated, the rotation is fast in the valley V portion and is slow in the ridge H portion in the constant tension winding state. The rotation speed N1 in the vicinity of the collar portion is input to the arithmetic and control unit 30 as a signal A, and the control unit 30 calculates the ratio N1 / N0. Since N1 / N0 becomes large in the valley V part, if the value becomes a certain value or more, as shown in FIG.
X0 is further added to the integrated number of X0 determined by 2 and the inverted signal C is commanded. And again, in the mountain H part
When N1 / N0 falls below a certain value, the above l
The inverted signal C is commanded by subtracting X0 from the integrated number of X0 determined by / 2. By repeating this, the deviation between the center point of the bobbin 20 and the center point of the traverse is automatically corrected, and the valley V
Alternatively, it is possible to automatically eliminate the occurrence of the mountain H and achieve sound bobbin winding. Regarding N0, if the rotation unevenness is large, it is preferable to obtain N0 from the rotation at a position close to N1, and about 80 to 90% from the position of N1 is appropriate.

Furthermore, even if the correction by N1 / N0 is performed, the valley V
Then, there is a possibility that the filamentous body 40 may come into contact with the flange and be broken. Therefore, it is desirable to set such that the adding operation of X0 is performed with a high sensitivity, that is, a fluctuation of 60 to 80% of the peak portion as compared with the fluctuation rate at the valley portion or the peak portion.

On the other hand, if the constant tension is maintained, the rotation speed is fast at the beginning of winding on the bobbin 20, and the rotation speed of the bobbin 20 decreases as the winding diameter of the filament increases. Such an operation is automatically performed by using a normal torque motor or the like. As described above, if the rotation speed decreases, the traverse movement amount X0 must also be reduced, and the traverse pitch will be uneven. In this case, the rotation speed at the beginning of winding is stored in the arithmetic and control unit 30, the ratio to the reduced rotation speed is calculated, and a command to reduce the traverse movement amount is issued based on the result. For example, the winding quality can be improved while automatically correcting the traverse pitch to a constant value, and the winding quality can be further improved.

[Advantages of the Invention] As described above, according to the winding control method of the present invention, it is possible to always wind the filament on the bobbin in an orderly manner, and to eliminate the reversing limit switch for the conventional traverse adjustment. Since it was possible to eliminate the need for the placement of workers at all, labor and time savings were achieved, and significant cost reductions could be achieved, and its industrial value is extremely great.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a concrete configuration example of an apparatus used in a method according to the present invention, FIGS. 2 to 4 are explanatory views showing a traverse control situation according to the present invention, and FIG. 5 is a linear body. 6 is an explanatory view of the winding portion, FIG. 6 is an explanatory view showing a conventional traverse situation, FIG. 7 is an explanatory view showing a state in which the traverse center is displaced from the bobbin center, and FIG. 8 shows a winding failure situation. Explanatory drawing, FIG. 9 is explanatory drawing which shows the shift | offset | difference of a limit switch. 1: Bobbin rotation motor, 2: Fixed base, 3: Traverse drive motor, 4: Traverse moving base, 5,6: Traverse center detection sensor, 7: Take-off machine, 8: Take-up capstan, 9: Guide, 1
0: winder, 20: bobbin, 30: arithmetic and control unit, 40: filament,
A: rotation signal, B: traverse movement signal, C: inversion signal, D: center point signal.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP 61-273470 (JP, A) JP 59-223660 (JP, A) JP 60-258073 (JP, A) Actual development Sho 60- 19559 (JP, U) JP 62-22902 (JP, B2) JP 60-4108 (JP, B2)

Claims (1)

[Claims] 1. A traverse movement amount required for one rotation of the bobbin is calculated by inputting a rotation signal associated with the rotation of a bobbin that winds a linear body with a constant tension, to a traverse drive motor. Drive the motor while inputting and sequentially adding them, and when the number of additions reaches the predetermined number of conditions for reversal imparting, input a reversal signal to the traverse drive motor to invert, and then repeat the same. In the method, the average winding rotation speed in the traverse is N0.
Where N1 is the rotation speed in the vicinity of the collar, X0 is the traverse movement required for one rotation of the bobbin, and l is the bobbin winding length, the valley where the value of N1 / N0 is greater than the specified value Then, the number of additions of X0 is added more than the number determined by l / 2 to invert it, and the mountain part where N1 / N0 becomes smaller is subtracted and inverted to automatically shift the bobbin center point from the traverse center point. A method for automatically controlling winding of a filament, characterized in that winding is controlled so as to be corrected.