JP2001226034A - Taking-up winder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a taking-up winder which is less expensive than a conventional one and capable of easy control of taking-up tension. SOLUTION: This taking-up winder comprises a plurality of taking-up units 4 taking up a plurality of yarns Y supplied at a constant speed respectively. Each of the taking-up units 4 is provided with a traversing drum 11, a bobbin 10 taking up the yarn Y therearound into a package while the yarn Y is traversed by the drum, a torque motor 13 driving either of the bobbin 10 or the traversing drum 11, and a voltage setting means 15 controlling power voltage of the torque motor 13 to set an initial taking-up tension at the time of taking-up operation. As a result, it is possible to simplify a traversing mechanism and, through the use of torque-rotational speed characteristics of the torque motor 13, control the taking-up tension of the yarn Y easily without using a particularly expensive taking-up speed control means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a take-up winder, and more particularly, to a feed roller in which a plurality of yarns supplied at a constant speed by a feed roller are traversed by a required width. The present invention relates to an improvement of a take-up winder having a number of winding units wound as packages around a number of bobbins in accordance with the yarn feeding speed.

[0002]

2. Description of the Related Art Conventionally, as a take-up winder for winding a yarn as a package around a bobbin in accordance with a yarn feeding speed, the tension of the yarn is detected by a dancer roller provided in a yarn feeding path. The rotation speed of the motor driving each bobbin is controlled by a signal from a speed control circuit corresponding to the displacement.

[0003]

However, in such a conventional take-up winder, for example, a large number of about 100 to 300 yarns wound in parallel with one beam are fed at a constant speed by a feed roller. In order to unwind and traverse each yarn with a required width, and to wind each of the winding units while individually separating and winding them as a package around a number of bobbins in accordance with the yarn feeding speed of the feed roller, a dancer roller and It is necessary to provide a speed control circuit, and there is a problem that a cost rises.

In order to overcome this problem, the winding shaft of the package is positively rotated by a torque motor, and the yarn guide is positively reciprocated by a predetermined width by a scroll cam interlocked with the output shaft of the torque motor. It is also conceivable to use a take-up winder that winds the yarn while traversing the yarn. However, in this winder as well, about 100 to 300 wound in parallel with one beam as described above.
In the case where the yarn of the book is separated and wound, the number of winding units is increased in proportion to this, and the cost of the traverse mechanism increases, resulting in a problem that the price of the entire winder rises. . An object of the present invention is to provide a take-up winder in which such a problem is solved.

[0005]

According to the first aspect of the present invention, a large number of yarns supplied at a constant speed are traversed while being packaged on a large number of bobbins in accordance with the yarn feeding speed. A take-up winder having a plurality of winding units for winding, wherein each winding unit includes the bobbin, a traverse drum having an endless spiral groove having a predetermined depth on an outer periphery, and a torque motor for driving the traverse drum. And a power supply circuit for each winding unit is provided with one common voltage setting means for controlling the power supply voltage of the torque motor in order to set the initial winding tension at the time of winding. The traverse mechanism can be simplified, the cost of the take-up winder can be reduced, and the adjustment of the winding tension of the yarn during winding does not require the use of an expensive winding speed control mechanism. It can be easily achieved.

According to a second aspect of the present invention, in the first aspect of the present invention, the traverse drum is directly mounted on the output shaft of the torque motor for positive rotation, and is rotatably supported by the bobbin holder. Winding diameter detecting means for rotating a package formed on a bobbin in contact with the traverse drum and detecting a change in the winding diameter of a package provided on a representative weight of the plurality of winding units; Based on the detection signal of the winding diameter detecting means, the power supply frequency of each torque motor of the plurality of winding units is gradually changed in accordance with the increase of the winding diameter of the package to adjust the winding tension in the winding process. By providing the winding tension adjusting means, installation of the winding diameter detecting means can be minimized and the winding tension of the yarn in each winding unit is controlled collectively. Control of tension is facilitated because the kill.

According to the invention of claim 3 of the present application, a large number of yarns supplied at a constant speed are traversed while
What is claimed is: 1. A take-up winder having a plurality of winding units each of which is wound on a plurality of bobbins as a package in accordance with a yarn feeding speed, wherein each winding unit has the bobbin and an endless spiral groove having a predetermined depth on an outer periphery. A traverse drum and a torque motor for driving the bobbin are provided; and
A power supply circuit for each winding unit includes a common voltage setting means for controlling a power supply voltage of a torque motor for setting an initial winding tension at the time of winding, and a torque motor for each of the plurality of winding units. Arbitrarily set the power supply frequency of the first winding tension adjusting means for adjusting the winding tension in the winding process, and arbitrarily set the power supply frequency of each torque motor of the plurality of winding units. One common winding tension adjusting means for adjusting the winding tension in the winding process, and the power supply frequency of each of the torque motors of the plurality of winding units are arbitrarily set to adjust the winding tension in the winding process. A single winding tension adjusting means for adjusting the change, and rotating the traverse drum in contact with the traverse drum; By moving outwardly in the radial direction, the torque-rotational characteristics of the torque motor are effectively used, and as the winding diameter of the package increases, the load due to the mechanical loss of the take-up winder increases. The winding tension of the yarn can be automatically gradually reduced relatively.

According to the invention of claim 4 of the present application, a large number of yarns supplied at a constant speed are traversed,
What is claimed is: 1. A take-up winder having a plurality of winding units each of which is wound on a plurality of bobbins as a package in accordance with a yarn feeding speed, wherein each winding unit has the bobbin and an endless spiral groove having a predetermined depth on an outer periphery. A traverse drum and a torque motor for driving the bobbin are provided, and a power supply circuit for each winding unit has a common power supply voltage for controlling the torque motor power supply voltage in order to set an initial winding tension at the time of winding. One voltage setting means, and one common winding tension adjusting means for arbitrarily setting a power supply frequency of each of the torque motors of the plurality of winding units to adjust a change in winding tension in the winding process; And the traverse drum is rotatably supported at a fixed position, the bobbin is rotatably supported at the swinging end of the cradle, and the output of the torque motor is transmitted through a transmission mechanism. The traverse drum is rotated by being positively driven to rotate while being connected to a shaft, and being brought into contact with a package formed on the bobbin on the traverse drum, whereby the torque-rotation speed characteristic of the torque motor is improved. "
As the winding diameter of the package increases, the load due to the mechanical loss of the take-up winder increases, and the winding tension of the yarn can be automatically and gradually reduced relatively. By appropriately changing the speed increasing ratio of the transmission mechanism interposed between the winding mechanism and the package, the gradual decrease rate of the winding tension can be changed as necessary.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings. A large number of glued yarns reinforced by applying a gluing process to a yarn such as a cotton spun yarn are wound around a beam 1 as a supply source to prepare. As shown in FIG. 2, the yarn group drawn out from the beam 1 by the feed roller 2 in the form of a sheet is divided into individual yarns by a comb-shaped separator 3, and the divided yarns Y are Each of the winding units 4 is wound one by one.

More specifically, each winding unit 4 includes:
As shown in FIG. 1, a number corresponding to the number of separated yarns Y (FIG. 1 shows only a part of the winding unit 4) is provided in a multi-stage and multi-row on a machine frame 5, 3 is provided on the upper part of the machine frame 5, and the yarn Y separated through the separator 3 is provided on the first roller 6 provided on the rear side of the separator 3 and on each of the guides provided on the winding units 4 in each row. It is supplied to each winding unit 4 via a roller 7.

As shown in FIGS. 1 and 2, each winding unit 4 has a bobbin 10 for winding a yarn Y as a package 9 on one side of each plate-shaped frame 8 provided on the machine frame 5, and a bobbin 10. A traverse drum 11 for traversing the yarn Y to be wound in the generatrix direction of the bobbin 10, a traverse fulcrum roller 12 provided vertically below each guide roller 7 for guiding the yarn Y to the traverse drum 11; A known metal drum having an endless spiral groove 11a having a predetermined depth on the outer periphery of a cylindrical body is used as the traverse drum 11, and the traverse drum 11 is provided on the other side of the plate-shaped frame 8. By directly attaching and rotating the output shaft 13a to the output shaft 13a, the yarn Y is traversed with a predetermined width corresponding to the endless spiral groove 11a.

The bobbin 10 is rotatably supported on a tip end of a cradle 14 whose base is pivotally supported on the plate-like frame 8. The bobbin 10 is brought into contact with the outer peripheral surface of the traverse drum 11. In order to set the initial winding tension in the power supply circuit of each winding unit 4,
One common voltage setting means 15 for controlling the power supply voltage of each of the torque motors 13 is provided with a manual type slide rack.

Reference numeral 16 is provided on each winding unit 4.
5 shows a variable resistor that corrects a variation in winding tension in each winding unit 4. Thus, if the output shaft torque of the torque motor 13 is set to the minimum necessary value for driving the package 9 by the voltage setting means 13, the yarn is wound around each bobbin 10 with a substantially constant tension from the start to the end of winding. Y can be wound up.

However, as the load applied to the torque motor 13, in addition to the load caused by the winding tension for winding the yarn Y around the bobbin 10, the mechanical loss of the rotating portion of the winder (including the mechanical loss of the torque motor 13 itself) is included. Load is applied. The load due to this mechanical loss is
Is not constant from the beginning to the end of the winding, and tends to gradually decrease as the winding diameter of the package 9 increases and the rotational moment acting on the bobbin increases. For this reason, the winding tension of the yarn Y tends to increase relatively as the package 9 advances. However, in a take-up winder, it may be necessary to gradually reduce the winding tension as the winding progresses. Therefore, in the present embodiment, as shown in FIG. 3, a winding diameter detecting means 23 for detecting a change in the winding diameter of the package 9 is provided on a representative weight of the many winding units 4, and the winding diameter detecting means 23 is provided. , The power frequency of each of the torque motors 13 of the plurality of winding units 4 is gradually reduced as the winding diameter of the package 9 increases, and the torque motor 13 Output shaft 13a
Is provided with one common adjusting means 17 for adjusting the yarn tension by gradually decreasing the output torque. More specifically, the winding diameter detecting means 23 includes an arm 18 protruding from the base of the cradle 14 and rotating integrally with the cradle 14, and a groove 19a engaged with a pin 18a provided on the arm 18. Lever 19
And a potentiometer (variable resistor) 20 interlocked with a rotating shaft 19b of the lever 19 via a gear train. The winding tension adjusting means 17 provides a torque motor 13 according to a change in the resistance value of the potentiometer 20. And a circuit that includes an inverter that modulates the power supply frequency. At this time, the cradle 14 is increased by increasing the winding diameter of the package 9.
Is rotated in the direction of arrow P as shown in FIG.
8 and the rotation shaft 19b are rotated in the Q direction. Along with this, the resistance value of the potentiometer 20 increases, and the frequency of the winding tension adjusting means (circuit including an inverter) 17 is changed in accordance with the increase in the resistance value. By changing the power supply frequency of the torque motor 13, the output shaft torque of all the torque motors 13 is gradually reduced as the winding diameter of the package 9 is increased, and the yarn tension is increased as the winding proceeds. Is increased, and irregular winding of the package 9 such as chrysanthemum winding or bulge can be prevented. Moreover, since the thread tension of all weights can be controlled by one common winding tension adjusting means (a circuit including an inverter) 17, it is advantageous in terms of cost and operation is simplified. Reference numeral 21 denotes a control box provided with a manual variable resistor 16 serving as a winding tension correcting means provided in each winding unit 4, and reference numeral 22 denotes a photoelectric yarn cutting sensor for detecting that the yarn Y has been cut. When the yarn Y breaks, a signal is issued to stop the operation of the feed roller 2.

Incidentally, the slidac as the voltage setting means 15 is changed to a remotely operable type, and a potentiometer (variable resistor) 20 forming a part of the winding diameter detecting means 23 is replaced with a variable resistor. It is also possible to change the voltage of each remotely operable slide rack directly by changing the controller to a controller that remotely controls the device and changing the signal from the controller (which changes as the package winding diameter increases). The inverter of the above embodiment shown in FIG.

FIG. 4 shows another embodiment. This embodiment also has a large number of winding units 4 for winding a large number of yarns Y supplied from the beam 1, respectively.
Although not different from the above-described embodiment, in this embodiment, the bobbin 10 provided in each unit 4 is connected to the torque motor 1
The traverse drum 11 was directly supported by the output shaft 13a of No. 3 and the traverse drum 11 was brought into contact with the outer peripheral surface of the package 9 formed on the bobbin 10, and the traverse drum 11 was rotated according to the rotation of the package 9. The traverse drum 11 is rotatably supported on a shaft 14a provided at the tip of the cradle 14, and is brought into pressure contact with the package 9 by its own weight to gradually retreat from the center position of the bobbin 10 as the winding diameter of the package 9 increases. I tried to make it. Each of the torque motors 13 is connected in series to a power supply with one common manual slide ladder as voltage setting means 15 and an inverter as winding tension adjusting means 17.
By setting the power supply voltage of, the tension at the initial stage of winding is set, and the power supply frequency of each torque motor 13 is set artificially by the inverter, so that the change in the winding tension of the yarn Y can be set arbitrarily. I made it possible. In addition, each winding unit 4 is provided with the variable resistor 16 that corrects the variation of the winding tension in each winding unit 4, which is the same as the previous embodiment.

In this embodiment, since the bobbin 10 is driven by the torque motor 13, the load due to the mechanical loss tends to increase as the winding diameter of the package 9 increases. The winding tension tends to decrease automatically as the winding progresses. In addition, the torque motor 13 uses the fact that the slope of the “torque-rotational speed characteristic curve” changes according to the power supply frequency, and the inverter selects the power supply frequency of the torque motor 13 to a desirable value. The winding tension of the yarn Y can be changed gradually. Further, in this embodiment, unlike the above embodiment, the winding diameter detecting means of the package 9 can be omitted.

FIG. 5 shows still another embodiment. This embodiment also has a large number of yarns Y supplied from the beam 1.
Is not different from the above-described embodiment in that each winding unit 4 is provided with a number of winding units 4 for winding, however, in this embodiment, the bobbin 10 provided in each winding unit 4 is
The oscillating end of the cradle 14 is rotatably supported and connected to the output shaft 13a of the torque motor 13 via the transmission mechanism 24 to rotate positively and be formed on the bobbin 10 in the traverse drum 11. The traverse drum 11 was rotated in the direction indicated by the arrow S by bringing the package 9 into contact.
The transmission mechanism 24 includes a pulley 25 attached to the output shaft 13 a of the torque motor 13 and a pulley 26 provided at a fulcrum position of the cradle 14, a timing belt 27 bridged between the pulleys 25 and 26, and a fulcrum position of the cradle 14. , A pulley 29 fixed on a shaft supporting the bobbin 10, and a timing belt 30 stretched between the pulleys 28, 29. Is adjusted not only by the frequency setting by the inverter, but also by pulleys 25 and 26 and pulleys 28 and 29 as appropriate.
By changing the speed ratio of the transmission mechanism 24. As shown in FIG. 4, the power supply circuit of the torque motor 13 includes variable resistors 16 provided corresponding to the respective torque motors 13 and one common manual slider Similarly, an inverter serving as a common winding tension adjusting means 17 was interposed in series. In this case, the load for winding the yarn Y and the load due to the mechanical loss increase due to the increase in the winding diameter of the package, and the winding tension of the yarn Y automatically decreases gradually. Although the form is the same as that of the embodiment, the winding tension of the yarn Y is adjusted not only by setting the frequency of the inverter, but also by changing the speed increase ratio by the transmission mechanism 24 so that the torque-rotational speed characteristic of the torque motor 13 is changed. Can be used more advantageously. That is, the slope of the torque gradually decreasing curve depends on which area of the torque-rotation speed characteristic curve shown in FIG. 6 is set as the rotation speed usage region from the start to the end of winding of the yarn Y of the torque motor 13. Is different, and this can be used to determine the winding tension gradual reduction rate of the yarn Y.

In the above-described embodiment, the beam 1 is shown as a supply source of the yarn Y of the take-up winder, and the form in which the beam 1 is divided and wound is exemplified. However, the take-up winder of the present invention is not limited to this. The present invention is not limited to this, and can be widely used in the case of winding a large number of yarns one by one into a package in winding of a chemical fiber in a spinning process, winding in a dipping process, and the like.

[0020]

According to the first aspect of the present invention, by combining the torque motor and the traverse drum, it is possible to obtain a take-up winder that is less expensive than the conventional one and that can easily control the winding tension.

According to the invention described in claim 2 of the present application,
Further, among the many winding units, the winding diameter detecting means is provided on the representative weight, and based on the detection signal of the winding diameter detecting means, as the winding diameter of the package increases, the torque of all the other winding units increases. Since the power frequency of the motor can be gradually changed, even when used as a separating winder for winding a large number of yarns, it is possible to suppress a rise in the price of the winder and to increase the winding of the yarn Y. The taking tension can be adjusted accurately.

According to the invention described in claim 3 of the present application,
By effectively utilizing the "torque-rotational speed characteristic curve" of the torque motor, the winding tension can be automatically reduced gradually as the winding load of the torque motor increases due to the increase in the winding diameter of the package during the winding process. Therefore, it is possible to simplify the winder and further suppress a rise in price.

According to the invention described in claim 4 of the present application,
Further, by changing the speed increase ratio of the transmission mechanism, the rotation region of the torque motor from the start of winding to the end of winding can be changed, and the rate of gradually decreasing the winding tension of the yarn can be easily changed.

[Brief description of the drawings]

FIG. 1 is a side view showing an example of an embodiment of the present invention;

FIG. 2 is a perspective view showing a main part of FIG. 1;

FIG. 3 is a diagram showing a control system of the winding unit in FIG. 1;

FIG. 4 is a schematic view showing another embodiment.

FIG. 5 is a schematic view showing still another embodiment.

FIG. 6: “Torque-revolution number characteristic curve” of a torque motor
Graph showing one example of

[Explanation of symbols]

REFERENCE SIGNS LIST 1 beam 2 feed roller 3 separator 4 take-up unit 5 machine frame 9 package 10 bobbin 11 traverse drum 13 torque motor 14 cradle 15 voltage setting means 17 winding tension adjusting means 23 winding diameter detecting means 24 transmission mechanism

Claims (4)

[Claims] 1. A take-up winder having a plurality of winding units, each of which wraps a plurality of yarns supplied at a constant speed as a package on a plurality of bobbins in accordance with the yarn feeding speed while traversing each yarn. Each winding unit is provided with the bobbin, a traverse drum having an endless spiral groove with a predetermined depth on the outer periphery, and a torque motor for driving the traverse drum, and a power supply circuit for each winding unit is provided. A take-up winder provided with one common voltage setting means for controlling a power supply voltage of a torque motor for setting an initial winding tension at the time of winding. 2. A traverse drum is directly attached to an output shaft of a torque motor to rotate positively, and a package formed on a bobbin rotatably supported by a bobbin holder is brought into contact with the traverse drum. Rotating, detecting a change in the winding diameter of the package provided on a representative weight of the plurality of winding units; and increasing the winding diameter of the package based on a detection signal of the winding diameter detecting means. A common winding tension adjusting means for gradually changing the power supply frequency of each of the torque motors of the plurality of winding units in accordance with the above, and adjusting the winding tension in the winding process. Winder. 3. A take-up winder having a plurality of winding units each of which traverses a plurality of yarns supplied at a constant speed and winds them as packages on a plurality of bobbins in accordance with the yarn supply speed. In each winding unit, the bobbin, a traverse drum having an endless spiral groove with a predetermined depth on the outer periphery, and a torque motor for driving the bobbin are provided, and a power supply circuit for each winding unit includes: In order to set the initial winding tension at the time of winding, one common voltage setting means for controlling the power supply voltage of the torque motor, and arbitrarily setting the power supply frequency of each torque motor of the plurality of winding units, A common winding tension adjusting means for adjusting a change in winding tension in the winding process; and a means for rotating the traverse drum in contact with the traverse drum. A take-up winder characterized in that the take-up winder moves outward in the radial direction of the package as the winding diameter of the package increases. 4. A take-up winder having a plurality of winding units, each of which traverses a plurality of yarns supplied at a constant speed and winds them as packages on a plurality of bobbins in accordance with the yarn supply speed. Each winding unit is provided with the bobbin, a traverse drum having an endless spiral groove with a predetermined depth on the outer periphery, and a torque motor for driving the bobbin. In order to set the initial winding tension at the time of winding, one common voltage setting means for controlling the power supply voltage of the torque motor; and arbitrarily setting the power supply frequency of each torque motor of the plurality of winding units. A single winding tension adjusting means for adjusting a change in winding tension during the winding process, and rotatably supporting the traverse drum at a fixed position. Is rotatably supported on the swinging end of the cradle, is connected to the output shaft of the torque motor via a transmission mechanism, rotates positively, and contacts the package formed on the bobbin on the traverse drum. A take-up winder characterized by rotating a traverse drum.