JPS643788B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a yarn winding device of a type in which a spindle equipped with a bobbin for winding yarn is actively rotationally driven, that is, a so-called spindle drive type yarn winding device.

In a spindle drive type yarn winding device, as the yarn is wound onto the bobbin, the diameter of the yarn package formed on the bobbin increases, and as a result, the yarn winding speed increases. It shows a phenomenon that gradually increases. Although this phenomenon is an inevitable result of this winding method, the following measures have been used to prevent this phenomenon.

In other words, a detector (sensor) is installed at an appropriate location on the yarn winding device to detect characteristics that show a certain tendency to change as the yarn is wound onto the bobbin, and the process information detected by this sensor is Based on this, a feedpack control system was adopted in which the rotational speed of the spindle was changed so that the winding speed of the yarn remained substantially constant from the beginning of winding to the end of winding. Specifically, in order to detect the winding tension of the yarn, which increases as the diameter of the package increases, a tension detector is interposed in the traveling path of the traveling yarn toward the bobbin.
A method has been put into practical use that compares the tension detected by this tension detector with a set tension and changes the rotation speed of the spindle so that the detected tension becomes the set tension. It is stated in the official gazette. On the other hand, as another method, in order to detect the yarn winding speed which increases as the diameter of the package increases, a speed detector is provided to detect the circumferential speed of a roller bale that is driven in contact with the package. Attempts have been made to compare the speed detected by a speed detector with a set speed, and to change the rotation speed of the spindle so that the detected speed becomes the set speed.

However, the above-mentioned conventional means have the following drawbacks, which have been pointed out by production sites as problems in practical machines, or by researchers and developers as problems in the development of practical machines for high-speed winding. is considered a problem among

That is, the problems with the yarn winding device using the above-mentioned tension detector are as follows.

(1) There are problems with the lifespan of the tension pick-up part of the tension detector and the resulting increase in the amount of on-site work due to periodic replacement of the pick-up, as well as an increase in yarn production costs. This is a serious problem in factories, and it is also a serious problem in factories where the yarn winding speed is high (for example, 3000 m/min or more).

(2) There is a problem of damage to the yarn due to the tension pick-up of the tension detector, and this is particularly a problem in factories that produce high-quality yarn or where the yarn winding speed is high.

(3) The problem of complicating the thread path due to the installation of tension detectors.

(4) The detection value fluctuates over time due to the accumulation of oil and other substances on the tension pick-up of the tension detector, and this fluctuation causes the winding speed to fluctuate, resulting in the formation of packages with different winding hardnesses and winding shapes.

(5) Factories that employ so-called direct high-speed spinning, in which the yarn spun from a spinneret is taken directly onto the bobbin and wound without using any intermediate yarn transfer means (for example, a godet roller). In this case, since the upstream end of the running yarn is the spinning orifice, there are cases where it is substantially difficult to detect the tension even if a tension pick-up is used.

(6) In a yarn winding device consisting of multiple winding weights, a tension detector is provided only on one of the multiple weights to detect tension, as disclosed in the above-mentioned British Patent Publication No. 2015589, In factories that use the so-called representative weight control method in which other weights are also controlled using this method, starting yarn winding on the bobbin of each weight,
Problems in which all spindles must be stopped due to the thread breakage of the representative weight, problems in which the weight with thread breakage is forced to run idly until the other weights are full, and these problems. This problem causes an increase in the amount of waste yarn and a decrease in productivity, and this is a serious problem, especially in machines where the yarn winding speed is high.

On the other hand, in the case of a yarn winding device using the above-mentioned speed detector, if it has a roller bale, it is possible to detect the speed by detecting the peripheral speed of the roller bale. Since the detection signal is constantly used, the detected winding speed value fluctuates due to changes over time in the rotational resistance of the roller bale and changes over time in the surface pressure that the roller bale presses against the package. There is a problem that the speed fluctuates, resulting in the formation of packages with different winding hardness and winding shape, or there is a problem that the quality of the yarn deteriorates due to applying a surface pressure that is higher than necessary to prevent such signal fluctuations. .

The present invention was made for the purpose of solving the problems of the prior art described above, and its configuration is as follows:
It is as follows.

(a) a thread running path, (b) a spindle on which a bobbin is attached, in which the running thread is continuously traversed and wound up to form a package, and is actively rotated by a drive means; Yarn traversing means for causing relative movement between the traveling yarn and the bobbin in order to wind the yarn while winding the yarn; means, (e) winding speed feedback control means for controlling the spindle rotational speed according to the tension or speed detected by the detection means and maintaining the winding speed of the yarn substantially constant; (g) storage calculation means for storing the control signal controlled by the hoisting speed feedback control means as a preset control signal and outputting the control signal; (g) based on the output of the hoisting speed feedback control means or the storage calculation means; and a rotational speed changing means for changing the rotational speed of the spindle, the yarn winding device having a rotational speed changing means for changing the rotational speed of the spindle, and forming a control signal preset by the winding speed feedback control means under the operation of the detection means to adjust the rotational speed of the spindle. A yarn winding that forms a package by storing a control signal in the storage calculation means and outputting the preset control signal from the storage calculation means while the detection means is inactive after storage is completed. removal device.

A yarn transfer means is provided on the yarn running path and can move toward and away from the yarn, and when the preset control signal is generated, the yarn transfer means is activated and the control signal is activated. 2. The yarn winding device according to claim 1, wherein after the formation, the yarn transfer means is separated from the yarn and remains inactive to form the package.

When forming the control signal set in advance,
Claims 1 or 2, wherein the yarn winding speed is maintained lower than the normal winding speed to form the package, and after the control signal is generated, the package is formed at the normal winding speed. The yarn winding device described.

(a) a thread running path, (b) a spindle on which a bobbin is attached, in which the running thread is continuously traversed and wound up to form a package, and is actively rotated by a drive means; A plurality of winding weights, a first weight and a second weight, each having a yarn traverse means for causing relative movement between the running yarn and the bobbin for winding the yarn while winding the bobbin; ) The winding weight of the first weight includes (a) a detection means for detecting the winding tension or speed of the yarn positioned with respect to the yarn travel path; and (b)
(c) winding speed feedback control means for controlling the rotational speed of the spindle in accordance with the tension or speed detected by the detection means and maintaining the winding speed of the yarn substantially constant; and (c) the winding speed feedback control. (d) the winding speed feedback control means or the first memory calculation means; (B) a first rotation speed changing means for changing the rotation speed of the spindle of the take-up weight of the first weight based on the output of (a); ) a second memory calculation means for storing a control signal for the spindle rotation speed of the first weight; and (b) a spindle rotation of the take-up weight of the second weight based on the output of the second storage calculation means. and a second rotational speed changing means for changing the number of rotations, the control being preset by the first winding speed feedback control means under the operation of the detector at the first winding weight. A signal is formed and the control signal is stored in the first storage calculation means and the second storage calculation means, respectively, and after the storage is completed, the first storage calculation means and the second storage calculation means are stored in the non-operation of the detection means. A yarn winding device that forms packages on each of the first and second winding weights by respectively outputting the preset control signals from the second storage calculation means.

Next, the present invention will be further explained using specific examples and with reference to the drawings.

FIG. 1 is a schematic front view of an embodiment of the yarn winding device according to the present invention, which includes a plurality of spindles (the figure shows the case of two spindles), and has the following description of this embodiment. Now, each of the yarn winding devices according to the present invention described in and above will be collectively explained in more detail. Each of the first and second winding weights in the yarn winding device shown in FIG. The winding means 3 and 4 include a spindle 5, an electric motor (a three-phase induction motor using a transistor inverter as a speed change means) 6, which rotates the spindle 5, a yarn traverse means 7, and a traverse fulcrum guide 8. A bobbin 9 is attached to the spindle 5. Note that the yarn traverse can be carried out by traversing the yarn side as shown in the figure.
Alternatively, a method may be adopted in which the yarn running path is kept constant and the yarn travels on the spindle side. The yarn supply source (not shown) is, for example, a spinneret for spinning the fiber raw material into fibers, a yarn package, or a yarn transfer means (for example, a feed roller). In this example, a spinneret is assumed as the yarn supply source. The yarn 10 that has been continuously drawn out from the yarn supply source and traveling is wound onto the bobbin 9 along the yarn running path 11. On the yarn running path 11, yarn transfer rollers (Godet rollers) 12, 13 are provided.
and a traverse guide (not shown) provided in the traverse fulcrum guide 8 and yarn traverse means 7
is interposed. On the other hand, the first winding weight 1
The yarn traveling path 11 is provided with a tension detector 14 that detects the tension of the traveling yarn, and the spindle 5 is provided with a spindle rotation speed detector 15 that detects the rotation speed of the spindle. , first storage calculation means 1 constituting the first rotation speed control element
6 and a first rotation speed changing means 17 are provided. The first storage calculation means 16 includes a winding speed feedback control means that is controlled by a feedback signal from the tension detector 14. On the other hand, the spindle 5 of the second take-up weight 2 has
A spindle rotation speed detector 15 is provided,
In addition, a second storage calculation means 18 and a second rotation speed changing means 19 constitute a second rotation speed control element.
is equipped with.

Next, the operation of the embodiment of the yarn winding device described above will be explained. When winding the yarn, the first memory calculation means 16 of the first winding weight 1 feedbacks the yarn winding speed based on the value of the yarn winding tension detected by the tension detector 14. In addition to having a control function, it also stores and stores a control signal (information) regarding the winding speed when forming a package once or several times using the feedback control function, and also stores this control signal in advance. A function of outputting the control signal to the second memory calculation means 18 of the second winding spindle 2 as a set control signal, and, if necessary, outputting this control signal as a preset control signal to the winding unit itself. Weight or first winding weight 1
It also has the function of controlling the yarn winding speed. On the other hand, the memory calculation means 18 of the second winding weight 2
has a function of controlling the yarn winding speed of the second take-up spindle 2 by using the control signal obtained by the storage calculation means 16 of the first take-up spindle 1 as a preset control signal. ing. These functions are achieved, for example, by the following specific means and techniques.

That is, the first storage calculation means 16 in the first winding weight 1 calculates a theoretical formula regarding the package shape, which will be described later, and creates optimum winding density data and an optimum preset rotation speed. Further, the second storage calculation means 18 in the second winding weight 2 calculates a theoretical formula based on the optimum winding density data and the optimum preset rotation speed output from the first storage calculation means 16. An example of a theoretical formula regarding the package shape in the case of pirn winding used in this embodiment is shown below.

However, when n=0, Nn=V/πD ₀ ...Equation (2) In Equations (1) and (2), Nn: Theoretical rotation speed V: Winding speed D _o-1 : Winding diameter before Δt D ₀ : Empty bobbin diameter α: Discharge amount Δ: Calculation interval time ρ: Winding density l ₀ : Initial winding width Θ: Package taper angle β: Nn correction term In this example, Δt = 1 second. ing.

The above-mentioned theoretical formula is input to the first storage calculation means 16, and the factors necessary for calculating this theoretical formula, such as the winding speed V, the discharge amount α, the winding density ρ, and the package taper angle Θ, are also input. Tension setting value TS, tension upper limit value, which are factors necessary for correction of density ρ
Each value for TU and tension lower limit value TL is input. Further, the second storage calculation means 18 receives from the first storage calculation means 16 the above-mentioned theoretical formula and each value for the above-mentioned factors necessary for calculation based on this theoretical formula. In addition, the empty bobbin diameter D ₀ ,
The calculation interval time Δt and the initial winding width l ₀ are fixed data that will not change if the winding machine is the same. You can also enter it in advance.

The first storage calculation means 16 calculates the theoretical rotation speed Nn at n=0 based on the input data,
The value is output to the first rotation speed changing means 17. When the preset start signal PS is inputted from the outside, the first rotation speed changing means 17 outputs a signal to drive the electric motor 6 and rotates the spindle 5. A signal is output for changing the rotation speed of the electric motor 6 so that the theoretical rotation speed Nn at n=0 and the actual spindle rotation speed input from the spindle rotation speed detector 15 are equal. After the theoretical rotational speed Nn becomes equal to the spindle rotational speed, the bobbin is threaded, and at the same time, the threading signal YS is inputted to the first storage calculation means 16. When the 1Hz oscillator installed in the internal drive is activated and a calculation time interval signal is output, calculations are made based on the theoretical formula (1) every time this signal is output, and the calculated theoretical rotation speed Nn is First rotation speed changing means 17
input. The first rotation speed changing means 17 is
A signal for changing the rotation speed of the electric motor 6 is outputted so that the theoretical rotation speed Nn, which changes every second, is equal to the actual spindle rotation speed, and the rotation speed of the electric motor 6 is controlled based on this. . Winding stop signal
When the STP is input to the first storage calculation means 16 and the first rotation speed changing means 17, the rotation of the electric motor 6 is stopped by the output from the first rotation speed changing means 17, and memory calculation means 1
6, n is reset to 0, and the theoretical rotational speed Nn at n=0 is changed to the first rotational speed changing means 1.
Output to 7.

Furthermore, the first memory calculation means 1 in the first winding (the first winding after changing the winding conditions)
6 has the following effects.

(1) Search for optimal preset rotation speed: Tension T (tension detector 14) immediately after threading on the bobbin
(detected by the operator and inputted to the first storage calculation means 16) is located between the tension upper limit value TU and the tension lower limit value TL.
In the tension and winding density change model diagram where the vertical axis shows the tension value and the winding density value, if the tension T exceeds the tension upper limit value TU as shown by symbol A, the tension T and the tension setting value The value of the winding speed V is lowered to make the theoretically calculated value smaller, and it is outputted to the first rotational speed changing means 17 so that the state shown by symbol B is reached where TS is equal to the winding speed V. Conversely, if the tension T is smaller than the tension lower limit value TL, increase the value of the winding speed V so that the tension T becomes equal to the tension setting value TS, increase the theoretically calculated value, and set it to the first It is output to the rotation speed changing means 17. Further, the data regarding the corrected winding speed V obtained during this period is
The data is stored in the second storage calculation means 16, and is also input to the second storage calculation means 18, where it is used as basic data for control signals set in advance.

(2) Search for optimal winding density data: The tension T when threading is the upper and lower tension limits TU, TL.
After confirming that it is within the range, the search for the winding density ρ begins. If the input value of the winding density ρ is too large than the optimum value, the tension T increases and exceeds the upper tension limit TU at symbol C in FIG. Then, the first storage calculation means 16 calculates Nn of the above formula (1).
By increasing the correction term β in the negative direction, the theoretical rotation speed Nn
This operation is continued until the tension T is equal to the tension setting value TS, as shown by symbol D in FIG. This correction term β is adjusted to prevent the winding density ρ from being corrected alone if the tension exceeds the control range, and to prevent the winding density ρ from being over-corrected. be. After that,
The first storage calculation means 16 monitors the change in tension T (dT/dt) and operates to reduce the value of the winding density ρ until the value becomes zero. vice versa,
If the value of the winding density ρ is too small than the optimum value, the tension T decreases and exceeds the lower tension limit TL at symbol F in FIG. Then, the first memory calculation means 16 increases the Nn correction term β in the equation (1) in the positive direction to increase the value of the theoretical rotation speed Nn,
This operation is continued until the position shown by symbol G in FIG. 2 where the tension T and the tension setting value TS are equal. Thereafter, the first storage calculation means 16 monitors the change in tension T (dT/dt) and increases the value of the winding density ρ until the value becomes 0, which is indicated by symbol H in FIG. works.

The winding density ρ corrected in the above process is ρ ₁ to ρ ₆ at each winding time from t ₁ to t ₆ shown in FIG.
The data is stored in the first storage/arithmetic means 16, and is also input and stored in the second memory/arithmetic means 18. Further, the Nn correction term β is cleared to 0 at the same time as winding is completed.

In the second and subsequent windings, the value of the winding density ρ used when performing the theoretical calculation in the first storage calculation means 16 is the same as the winding density data ρ ₁ stored in the first storage calculation means 16. The following equation using ~ρ ₆
Calculated using (3).

ρ=ρ _n+1 −ρ _n /t _o+1 −t _n・(t−t _n )+ρ _n ...(3) Here, m=1, 2, 3... m, t= winding time , when t<t ₁ , ρ=ρ ₁ ; when t>t ₆ , ρ=ρ ₆ Also, the first winding weight 1 is set at the winding speed V and the winding density as in the first winding. Correct ρ,
The winding densities ρ ₁ to ρ ₆ at each winding time t ₁ to t ₆ can be stored in the first storage calculation means 16, and the values can be stored in the second storage calculation means 18 in the same manner as in the first winding. You can also output to . Here, in the first winding, from the start of winding to the completion of winding, the tension T is the upper and lower limit of the tension.
If the search for a control signal that does not exceed TU and TL is completed, the first take-up spindle 1 also uses the control signal obtained in the first winding, similar to the second take-up spindle 2. as a preset control signal,
Based on this you can control, in this case,
The second winding can be performed without using the function of further correcting and storing the winding speed V and the winding density ρ, and furthermore, by removing the tension detector 14 from the yarn running path 14. .

In the second winding spindle 2, the winding speed V and the winding density ρ, which have been corrected to the optimum values, are used to calculate the winding speed V and winding density ρ in the second storage calculation means 18 using the above equations (2) and (3). Based on the result, the second rotational speed changing means 19 changes the rotational speed of the electric motor 6, that is, the rotational speed of the spindle 5, and winds the yarn. Note that in the winding operation of the second winding weight 2, if a new correction operation of the winding speed V and winding density ρ is performed after the second winding of the first winding weight 1, ,
This is the same state as when this operation is removed from the operation of the first winding weight, and if no correction operation is performed, the state is exactly the same. Although the present embodiment has been described using two winding weights, there may be any number of winding weights having the same configuration as the second weight.

As an example of creating a control signal set in advance in the present invention, a method for automatically calculating constants in the above-mentioned formula and a method for automatically creating a program may be performed using any of the following three methods. I can do it.

(1) ρ correction method: The tension T during winding is monitored during the entire winding time, and the tension T
A method to obtain the optimum winding density curve during the entire winding time by correcting the winding density ρ data used in the formula so that the package circumferential speed V (this can also be regarded as the package circumferential speed V) is within a certain range.

(2) Rotation speed storage method: The spindle rotation speed data is stored during the entire winding time when the spindle rotation speed is controlled and wound so that the tension T (or package circumferential speed V) is within a certain range. , a method to obtain the optimum spindle rotation speed during the entire winding time.

(3) Winding density ρ back calculation method: The spindle rotation speed is controlled so that the tension T (or package circumferential speed V) is within a certain range, and the spindle rotation speed at the time of winding is used to determine the optimum A method of calculating the winding density backward using a mathematical formula to obtain the optimal winding density curve during the entire winding time.

In the above, the present invention has been explained focusing on an embodiment of a yarn winding device using a pirn winding spindle drive type for yarn spun from a spinneret. It can also be applied to a yarn winding device that processes (draws, false twists, etc.) and winds yarn derived from a package cage by referring to the above-mentioned specific explanation. That is understood. Further, as an embodiment of the present invention according to the above configuration, there is the following. As a spinning winding device for high-speed direct yarn production without intervening a stacked yarn transfer means (for example, Godet roller) between the spinneret and the bobbin, first, in the first winding, the Godet roller and tension detector are used. interposed in the thread running path,
The basic conditions of the control signal set in advance are searched and determined according to the method described above, and for the second and subsequent windings, the intervention of the godet roller and tension detector used previously is discontinued, and the obtained This is a yarn winding device that winds yarn by controlling the spindle rotation speed based on a preset control signal based on basic conditions. As a result, a yarn winding device with improved yarn winding controllability is provided in a spindle drive type yarn winding device for high-speed direct yarn reeling, which has conventionally been considered difficult to control yarn winding. . Furthermore, in the case of a yarn winding device in which the traveling speed of the yarn is so high that yarn breakage occurs due to the resistance of the tension pick-up of the tension detector, low speed winding is first performed and the above-mentioned method is used. Search and determine the basic conditions of the preset control signal of A yarn winding device is provided which performs ultra-high speed winding based on the above.

Next, one of the implementations in which the yarn winding device according to the present invention is used for actual spinning and winding will be described.

Spinning winding conditions: Winding speed V = 4260 m/min Spinning discharge rate α = 30.8 g/min Empty bobbin diameter D ₆ = 0.0552 m Initial value of winding density ρ ₀ = 0.9 Initial value of winding width l l ₀ = 0.39 m Package taper angle Θ = 20゜ Tension specification value TS = 14g Tension upper limit value TU = 16.1g Tension lower limit value TL = 11.9g The spinning winding device shown in Fig. 1 is used,
In the third winding with the winding weight 1, the tension T falls within the tension management range (14 g ± 2.1
g) was achieved. Based on the preset control signal obtained based on this,
The form of the package wound using the second take-up weight 2 had almost no difference from the package form obtained using the first take-up weight 1. For confirmation, the tension detector 14 of the first take-up spindle 1 was similarly interposed in the thread travel path of the second take-up spindle 2 to detect the tension. It was found that substantially the same tension pattern as in spindle 1 was obtained.

The winding results (balanced state of tension values) in this case are shown in FIG. 3, with time plotted on the horizontal axis and tension values plotted on the vertical axis.

The above has explained an example of a winding device equipped with a tension detector as a detection means, but even when a speed detector for detecting the circumferential speed of a roller bale is provided as a detection means, the speed signal obtained from the detector can also be used. , it is clear that by using the tension signal as an input signal to the winding speed feedback control means, it is possible to obtain a winding device similar to the above example.

Next, the effects of the present invention will be described. Since the yarn winding device according to the present invention has the above-described configuration, there is no need to always use a feedback control mechanism based on detection data directly taken out from the process, as in the conventional case. There is no or little negative effect on the yarn, and the sensor can be used less frequently, extending the life of the sensor and reducing the effects of fluctuations in detection ability (fluctuations in detected values). The control signal set in advance is obtained using a winding speed feedback control means, so it is highly accurate and can be easily obtained. This improves the winding hardness and winding shape, lowers production costs, and simplifies operational management work.In addition, in the case of multi-spindle yarn winding devices, simultaneous DON of each spindle,
There is no need for a DOFF (simultaneous threading and doffing) device or its work, and even if the thread breaks before the yarn is full, it is possible to re-start threading with only that take-up weight. The effect of yarn breakage on other spindles is minimal, and productivity is dramatically improved compared to conventional yarn winding devices.

[Brief explanation of drawings]

FIG. 1 is a schematic front view of an embodiment of the yarn winding device according to the present invention, and FIG. FIG. 3 is a diagram showing a model of changes in tension and winding density, and FIG. 3 shows changes in yarn tension with respect to winding time when yarn is wound with the yarn winding device according to the present invention It is a figure showing an example of the state. Explanation of symbols in the drawings: 1: First take-up weight, 2:
Second take-up weight, 3, 4: Winding means, 5: Spindle, 6: Electric motor, 7: Yarn traverse means, 8:
Traverse fulcrum guide, 9: Bobbin, 10: Yarn, 1
1: Yarn running path, 12, 13: Yarn transfer roller,
14: Tension detector, 15: Spindle rotation speed detector, 16: First storage calculation means, 17: First rotation speed changing means, 18: Second storage calculation means, 1
9: Second rotation speed changing means, PS:: Preset start signal, YS: Threading signal, STP: Winding stop signal.

Claims (1)

[Scope of Claims] 1. (a) A thread running path, (b) A spindle, which is equipped with a bobbin in which the running thread is continuously traversed and wound up to form a package, and is actively rotated by a driving means. (c) Yarn traverse means for causing relative movement between the running yarn and the bobbin in order to wind the yarn while traversing;
(d) a detection means for detecting the winding tension or speed of the yarn positioned with respect to the yarn running path; (e) detecting the spindle rotation speed in accordance with the tension or speed detected by the detection means; a winding speed feedback control means for controlling and maintaining the winding speed of the yarn substantially constant; (f) storing a control signal controlled by the winding speed feedback control means as a preset control signal; (g) a rotation speed changing means for changing the rotation speed of the spindle based on the output of the winding speed feedback control means or the storage calculation means; Under the operation of the detection means, the hoisting speed feedback control means forms a control signal set in advance and stores the control signal in the storage/arithmetic means, and after the storage is completed, the winding speed feedback control means generates a preset control signal, and after the storage is completed, the hoisting speed feedback control means generates a preset control signal. A yarn winding device that forms a package by outputting the control signal set in advance from a storage calculation means. 2. A yarn transfer means that can freely move toward and away from the yarn is provided on the yarn traveling path, and when the preset control signal is generated, the yarn transfer means is activated and the control signal is activated. 2. The yarn winding device according to claim 1, wherein after the signal is generated, the yarn transfer means is separated from the yarn and remains inactive to form a package. 3 When forming the control signal set in advance,
Claims 1 or 2, wherein the yarn winding speed is maintained lower than the normal winding speed to form the package, and after the control signal is generated, the package is formed at the normal winding speed. The yarn winding device described. 4. (a) a yarn traveling path, (b) a spindle on which a bobbin is attached, in which the traveling yarn is continuously traversed and wound up to form a package, and is actively rotated by a driving means, and (c) the traverse is A plurality of take-up weights, a first weight and a second weight, each having a yarn traverse means for causing relative movement between the traveling yarn and the bobbin in order to wind the yarn while winding the yarn, A) The winding weight of the first weight includes (a) a detection means for detecting the winding tension or speed of the yarn positioned with respect to the yarn running path; (c) a winding speed feedback control means for controlling the rotational speed of the spindle in accordance with the tension or speed detected by the yarn and maintaining the winding speed of the yarn substantially constant; (d) based on the output of the winding speed feedback control means or the first memory calculation means, which stores and outputs a control signal for the rotational speed of the spindle of the winding weight of the first weight; (B) a first rotation speed changing means for changing the rotation speed of the spindle of the take-up weight of the first weight; (b) changing the spindle rotation speed of the winding weight of the second weight based on the output of the second storage calculation means; a second rotational speed changing means, forming a control signal preset by the first winding speed feedback control means under the operation of the detector at the first winding weight; The control signal is stored in the first storage calculation means and the second storage calculation means, respectively, and after the storage is completed, the control signal is stored in the first storage calculation means and the second storage calculation means while the detection means is not activated. A yarn winding device that forms a package on each of the first weight and the second weight by outputting the control signals set in advance from the storage calculation means.