JPH01267266A - Winding control method for flange expending bobbin - Google Patents

Abstract

PURPOSE:To wind a filament body on a flange expanding bobbin in an orderly manner by stopping any addition of traverse travel at every original N rotation if a tension variation is detected, adding it at every one reversal at a trough part, and subtracting it at a crest part. CONSTITUTION:A filament body 40 out of a receiving machine 7 is guide by a guide 9, and is orderly wound on a traversing flange expanding bobbin 20 as being rotated by motors 1, 3. An arithmetic and control unit 30 finds traverse travel necessary for one rotation of the bobbin, and the traverse driving motor 3 is driven while adding the travel successively, and when it comes to N rotation of reversal giving conditional numbers being determined out of a flange expanding angle and a wire diameter or the like, an addition number of the travel of up to reversal is increased as much as one. Here, a crest or a trough is formed and if a variation in winding tension, namely, a rotational variation is produced, it is detected and the travel addition at every N rotation is stopped, and at the trough part (winding taper), the travel is added at every one reversal, but at the crest part, the travel is subtracted at every one reversal. Thus, the filament body is orderly woundable all the time.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a winding control method for suitably winding a filament on a flanged bobbin.

[Prior art 1] A wire body such as an enameled wire is wound onto a bobbin after being coated with enamel and supplied to the market.

Conventionally, the bobbin for winding such a filament body has been conventionally formed in a +8 configuration with parallel crocodiles 21-, 22- as shown in FIG. c1
traverse a side is used. Such a conventional winding operation will be described below with reference to FIGS. 6 and 7.

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

The traverser 11 is fitted onto a helical shaft 12 which is rotated by a motor 13 for moving the rubber, and is reciprocated from side to side in the figure by forward and reverse rotation of the helical shaft 12, orderly placing the filament body 40 on the bobbin 20-. Arrange the rolls. Reference numerals 14 and 15 indicate limit switches, which allow the traverser 11 to move while traversing the striatum 40, and to switch between the collars 21 and 22.
This is for reversing the rotation of the motor 13 when it reaches - and moving the filament in the opposite direction.

However, the conventional bobbin 20- made in 4711 is
f:121-. 22- are installed in parallel, it is inevitable that the filament bodies at both ends of the bobbin will cause friction with the inner surface of the collar during winding and unwinding. If it is relatively thick, the enamel coating is thick, so even if there is some friction with the inner surface of the tsuba, it is not a big problem. In cases where the soundness of the enamel coating is strongly required, friction with the flange may make the surface unhealthy and prevent smooth winding and unwinding, leading to deterioration of the quality of the filament. .

Therefore, as a bobbin for winding the precision navy blue wire yarn body as described above, a blade angle as shown in FIG.
5°) is now used. In this way, Tsuba 21, . If 22 has an outwardly expanding angle, there is no fear that the filament 40 will be rubbed by the inner surface of the collar.

Although the problem of friction caused by the inner surface of the crocodile was solved by the above, a new difficult problem arose. This is a problem with the winding means when winding the filament 40 onto the crocodile-spread bobbin 20. When the flange bobbin 20 is used and the filament body 40 is wound up by the conventional trapperzer 11 as shown in FIG. 8, the limit switches 14, 15 .
If the reversal is performed at
occurs, resulting in poor winding. In order to minimize such winding defects, it is necessary for the first worker to adjust the position of the switch one by one as the filament is being wound, which only makes the work extremely complicated. Moreover, it was a waste of people and time, and was a major factor leading to high costs.

Therefore, using a winding device as shown in Fig. 1, when winding the filament on the flange-spreading bobbin, the developer eliminated the manual adjustment work and automatically ensured a sound winding. A winding control method that allows winding to be carried out has been proposed. (Tokugan Sho 6
3-33723) That is, 1 is a motor that rotates the flanged bobbin 20, and for example, a torque motor is used in order to keep the tension of the filament body constant. The motor 1 is configured to transmit a rotation signal, such as a pulse signal, as the motor 1 rotates, and to input the rotation pulse signal A to the arithmetic and control unit 30. Since the rotational speed of the motor 1 and the resulting rotational speed of the bobbin 20 can be determined from the pulse No. 18A, the outer diameter of the filament 40 to be wound and the winding of the bobbin 20 are determined by considering the diameter, etc. The required amount of traverse movement per rotation can be calculated by the arithmetic and control unit y130. Based on the calculation result, a drive signal B is output to the traverse drive motor 3 to give a drive command.

The bobbin rotation motor 1 is fixed to a fixed base 2, and the movable base 4 is configured to reciprocate as shown by the arrow in the figure by driving the traverse drive motor 3, and the guide 9 of the filament body 40 is kept in a fixed state. If this is done, the bobbin 20 will reciprocate in the axial direction to perform a traverse in winding the bobbin. The traverse drive motor 3 needs to be able to accurately control its drive amount, that is, the traverse moving plate, in accordance with the commands of the control device 30, and it is not possible to control the rotation speed accurately like a pulse motor. There needs to be.

In FIG. 1, 5 and 6 are traverse position detection sensors, and in this embodiment, the needles 5 and 6 are configured to detect the center point of the traverse and the distance M from the center point, and the detection result is The signal is input to the control device 30 as a signal.

7 is a take-off machine, and 8 is a take-off*W pushtan.

When the rotation pulse signal A is input to the control device 30 in accordance with the rotation of the bobbin rotation m motor I, the control device 30 detects the rotation speed of the bobbin 20 and performs the rotation at that time according to a preset program. For bobbin winding, an optimum traverse movement type is calculated according to the diameter and winding (=f) of the filament to be wound, and a drive command B is issued to the traverse drive motor 3.

X in Figure 2. is the traverse moving plate per one revolution of the bobbin calculated in this way.

Naturally, the value of Xn increases as the diameter of the filament to be wound increases, and decreases as the diameter of the filament increases.

The traverse position detection sensors 5 and 6 shown above signal the center of the entire traverse length /;! , CP are given, and the control device 30 continues to issue the traverse drive command B while integrating the traverse movement amount Xn of about Jjt from the center point P toward the collar 21. Then, when the cumulative number of When the traversal reaches the crocodile (22 in FIG. 8) and the product n number X1 is reached, a re-inversion command C is issued and the traverse is made toward the tsuba 21 again.

Repeat the above traverse of X1 8 times. Regarding this (iN,
The arithmetic and control unit may perform calculations to calculate the optimal N(Ii) for each.

When 8 traverses are performed with the above traverse length Xl, X is accumulated in one traverse. Increase the value by one and set it as X2. That is, X2-X10X.

Next, traverse is performed N times using X2, and one more XO is added after N times. Hereafter, every 8 times, IIIT order x, = X (nt) + - x o (n is
By performing the operations from 1 to rubber while performing the following operations (number of times of adding 0), orderly winding can be performed without expanding the flange or forming a valley on the bobbin. Moreover, the above X. Since the addition of is automatically calculated and given by the control device, and N is automatically selected in the same way, there is no need for any operation by the operator, which is a huge labor saving in terms of human and time. is achieved.

[Problems to be Solved by the Invention] The above proposal achieves automatic winding of the flanged bobbin, but this is only based on the premise that the bobbin is installed accurately. however,
The bobbin is not always installed with high precision; in other words, the bobbin may not be installed properly due to a dimensional deviation of the bobbin body, a positional deviation during installation, or the like. In this case, the calculated amount of movement and the actual amount of movement [
For example, as shown in FIG.
As a result, a valley V is formed on one side and a peak 1-1 is formed on the other side.

The present invention was made to solve the above-mentioned problems, and when a deviation occurs between the calculated movement amount and the actual movement position, the winding device itself detects it and automatically corrects it. The present invention aims to provide a new winding control method that can always perform sound winding.

[Means for determining problem 11] The present invention focuses on the fact that when the above-mentioned peaks or valleys are formed, the winding tension at that portion changes, and when the tension fluctuation is detected, the winding Stop adding Xn, add Xn for each reversal for the valleys, subtract Xn for each reversal for the peaks, and repeat this until the tension returns to normal to correct it. It is something.

If such a shift is made, the normal traverse position will be automatically returned while the addition and subtraction of X is repeated, so that the adding operation f1 of X according to the necessary conditions can be performed again thereafter.

[Example] The present invention will be explained below based on Examples.

Figure 4 shows both crocodiles 2 from the center point P of the total traverse length.
The traverse is carried out while accumulating the unit traverse movement amount X toward 1.22, and when the respective accumulated values reach Xl, a reversal command is issued and the traverse is reversed, thereby performing the original winding operation. In this case, the installation position of the bobbin 20 is misaligned, and the filament 40 is not wound in the correct position on the bobbin 20, but is wound on the right side in the figure, and the crocodile 21
It is an explanatory view showing how a valley V is formed on the side and a mountain H is formed on the collar 22 side.

When valleys V and peaks H are formed in this way, the winding becomes thinner in the valley V part, so the winding tension for winding the filament 40 is lower than in the normal part, and conversely, the winding becomes thicker in the valley 1-■ part. Therefore, the winding tension increases.

Such fluctuations in tension appear as fluctuations in the rotational speed of the torque motor that rotates the bobbin 20 shown in FIG. In other words, the winding rotation speed of the part where the winding condition is uniform and good is set as No, and the rotation speed of the torque motor when the filament falls into the trough is set as N.
1. The number of rotations of the torque motor when it rides on the mountain is N
, 2, the relationship is N 2 < N O < N 1 ``rr, and this fluctuation is input to the arithmetic jV control device 30 by the signal A. The arithmetic control device 30 thereby detects the occurrence of winding abnormality and its occurrence. You can tell if there is an anomaly, a valley formation, or a mountain formation.

For example, suppose that it is the formation of a valley V as shown in FIG. When the arithmetic and control unit 30 detects that the rotation of the torque motor has increased from N, O to N, it immediately issues a reversal command by adding X0 to the planned cumulative number of reversals, X, without waiting until the Nth time. issue,
If N and 1 are still detected in the next inversion, then Xn+
Add X0 to 1 and invert it. In this way, for each inversion until N1 is no longer detected. Performs the addition of X M times. By adding , the cumulative number becomes X.

, 1 and the detection of N, 1 disappears (i.e.,
When the valley ■ disappears), we stop adding X for each inversion.

In the case of a mountain, on the contrary, the arithmetic and control unit 30
By detecting, X0 is subtracted for each inversion, and N2
All you have to do is repeat the subtraction of `` for each inversion until it is no longer detected.

In addition, X after the valley or peak disappears due to the above. Regarding the addition condition, since the winding abnormality has occurred,
It is not a wise idea to return to the condition of addition of the cumulative number of N times as under normal conditions.According to the experiments of the inventors, the Nth X under normal conditions. When the la arithmetic of is

The result is N0M times [1 to X. 1. When the tension does not return to normal after an integrated number of (lN is a positive or negative integer), the conditions for applying traverse reversal after normal return are determined based on the average value of X and
It has been found that by setting n+1, subsequent winding can be carried out in a sound manner.

In addition, regarding the degree of variation with respect to the reference rotational speeds N and O to start the addition or subtraction operation of the second part It has also been found that good results can be obtained by starting the process when it is available. As for where in the bobbin position to set the reference rotation speed NrO in this case, as long as there is no rotational unevenness in the motor, the second position is fine, but in a practical sense it should be closer to the reversal position. According to experiments, it has been found that it is best to select a position approximately 80 to 95% between the center and the inverted position.

There is no particular limitation on the outer diameter of the filament to be wound;
．． The effect of the present invention is particularly remarkable for silk fabrics having a diameter of 3 nu+ or less. Furthermore, it goes without saying that the flange angle of the bobbin to which the present invention is applied is not limited to 45 degrees as shown in the above embodiment.

[Effects of the Invention] As described above, according to the winding control method according to the present invention, it is possible to always wind the filament body on the flange-spreading bobbin in an orderly manner, and moreover, the reversal limit switch is eliminated and the traverse length is reduced compared to the conventional method. By eliminating the need to allocate workers for adjustment, not only is it possible to save manpower and time, but also to achieve significant cost reductions.
Even if a winding abnormality occurs, it can be automatically corrected to ensure sound winding at all times, so its industrial value is truly great.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing a specific example of the construction of the device according to the present invention, Figs. 2 and 3 are explanatory diagrams showing the traverse control situation according to the present invention, and Figs. 4 and 5 are explanatory diagrams showing the occurrence of winding abnormality. An explanatory diagram showing the correction situation, Fig. 6 is an explanatory sketch of the vicinity of the winding of the filament, Fig. 7 is an explanatory diagram showing the traverse method in a conventional bobbin, and Fig. 8 is an explanatory diagram showing the traverse method in the conventional bobbin. FIG. 9 is an explanatory diagram showing a case where the method is applied. FIG. 9 is an explanatory diagram showing a state where the film is wound by the method of FIG. 1: Bobbin rotation motor, 2: Fixed base, 3: Traverse drive motor, 4: Traverse moving base, 5.6: Traverse position detection sensor, 7: Taking machine, 8: Taking capstan, 9 Ni guide, 10: Winding machine, 20: Bobbin, 30: Arithmetic control unit, 40: Striatum. Agent Patent Attorney Yudai Sato 1 Figure 1: r,'ff)C1lA7flt-7':/It
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Claims (2)

[Claims] (1) A rotation signal associated with the rotation of the bobbin is input to the arithmetic and control device, and the amount of traverse movement required for one rotation of the bobbin
0, input the calculation result to the traverse drive motor, and drive the motor while sequentially adding X_0,
When the added number reaches a predetermined reversal imparting condition number, input a reversal signal to the traverse drive motor to reverse it,
When the same repetition is performed and the number of repetitions reaches N determined from the flange angle of the bobbin, the diameter of the filament to be wound, etc., the number of additions of the above-mentioned X_0 until the traverse drive motor is reversed is increased by one, From then on, every N times,
In a winding control method for a flange-spreading bobbin in which 0 is increased one by one, if the winding becomes thinner or thicker due to a positional shift of the bobbin, etc., the tension fluctuation of the winding wire body caused by this is detected and the winding is thinned. For thick winding, X_0 is added every time the winding is reversed without waiting for the number of times to reach N, and when the winding is thick, X_0 is subtracted every time the winding is reversed, and this is repeated until the winding tension returns to normal. Winding control method for expanding bobbin. (2) The cumulative number of Nth X_0 during normal operation is X_n
When , a tension variation occurs and at each reversal an addition or subtraction of X_0 is performed, resulting in the N+Mth
The winding control according to claim 1, wherein when the tension returns to normal with an integrated number of n_+_m (m is a positive or negative integer), the traverse reversal provision condition after returning to normal is determined based on the average value of X_n and X_n_+_m. Method.