WO2018230372A1

WO2018230372A1 - Yarn-winding device

Info

Publication number: WO2018230372A1
Application number: PCT/JP2018/021234
Authority: WO
Inventors: 雄帆寺尾; 正太郎奥川; 一喜市原
Original assignee: 村田機械株式会社
Priority date: 2017-06-15
Filing date: 2018-06-01
Publication date: 2018-12-20
Also published as: EP3640173A4; EP3640173B1; EP3640173A1; CN110730754B; CN110730754A; JP2019001603A

Abstract

The purpose of the present invention is to increase the degree of freedom in setting changes of a winding width in a yarn-winding device. A yarn-winding device (2) is configured such that a first guide lever (63) is movable between an unrestricted position where a yarn (4) is guided with a large width to a traverse drum (5) without restricting the movable position of the yarn (4) in the direction of a rotational axis of the traverse drum (5) and a restricted position where the yarn (4) is guided to the traverse drum (5) with a width smaller than a set swing width by restricting the movable position of the yarn (4) in the direction of the rotational axis of the traverse drum (5). The first guide lever (63) can perform, depending on whether at the restricted position or the unrestricted position, winding operations with different widths by guiding the yarn to different traverse grooves (9) of the traverse drum (5), and can carry out stepped winding by repeating the winding operations with the different widths or carry out yarn winding with a width narrower than the set swing width by continuously performing a winding operation with a width narrower than the set swing width.

Description

Yarn winding device

The present invention relates to a yarn winding device.

Conventionally, an automatic winder that unwinds yarns of a yarn feeding bobbin produced by a spinning machine, etc., and eliminates yarn defects such as slabs, and splices yarns of a plurality of yarn feeding bobbins to form one package. Is known (see Patent Document 1 and Patent Document 2).

Japanese Patent Laid-Open No. 4-3778 Japanese Patent Laid-Open No. 5-58549

Patent Document 1 describes a yarn winding method that causes a change in traverse width by retracting a switching guide 1 in a traverse drum type winder.
In Patent Document 2, in a traverse drum type winder, by attaching a regulating guide 14 to the yarn guide 6, the movement of the yarn to one side in the swinging width direction is regulated, and the winding of the yarn forming a cone with a different winding width is formed. The taking method is described.

However, the method described in Patent Document 1 cannot form a stepped package.
Moreover, in the method described in Patent Document 2, it is necessary to remove the regulation guide 14 in order to change the winding width, and the winding width cannot be changed in one package. That is, a stepped package cannot be formed.
An object of the present invention is to increase the degree of freedom in changing the setting of the winding width in a yarn winding device.

Hereinafter, a plurality of modes will be described as means for solving the problems. These aspects can be arbitrarily combined as necessary.
A yarn winding device according to an aspect of the present invention includes a rotation support portion, a yarn guide portion, and a lever member.
A winding body is attached to the rotation support portion.
The yarn guide portion guides the yarn to the winding body and has a traverse drum.
The lever member does not restrict the position in which the yarn can move in the direction of the rotation axis of the traverse drum, so that the yarn is guided to the traverse drum with the set swing width, and the yarn in the direction of the rotation axis of the traverse drum. By restricting the movable position, it is possible to move between a regulation position where the yarn is guided to the traverse drum with a swing width smaller than the set swing width. The lever member can perform thread winding operation with different widths by guiding the thread into different traverse grooves of the traverse drum at the restricting position and the non-regulating position, and step winding by repeating the thread winding operation with different widths. The bobbin winding having a width smaller than the set swing width can be executed by continuously performing the bobbin winding operation having a swing width smaller than the set swing width. “Different traverse grooves” mean that they are not completely the same, and some of them are the same. The “set swing width” is a traverse width defined for each traverse drum.
In this device, the swing width of the yarn guided by the traverse drum can be changed by moving the lever member between the restricted position and the non-restricted position. Specifically, when the lever member is in the non-restricted position, the yarn is guided to the traverse drum with a set swing width, and when the lever member is in the restricted position, the thread is traversed with a swing width smaller than the set swing width. It is guided by the vibration drum and passes through a drum groove different from the case where it is not regulated. In this way, it is possible to form a yarn layer with a wide winding width and a yarn layer with a narrow winding width. As a result, a package having a narrow winding width can be created, and separately from this, a stepped winding can be formed by combining a yarn layer having a narrow winding width and a yarn layer having a wide winding width in one package.

The lever member may have a plurality of lever members provided corresponding to different positions in the rotational axis direction of the traverse drum.
In this apparatus, if the number of lever members is 2, three types of winding widths can be realized.

The yarn winding device
A drive unit for driving the lever member;
And a control unit that controls the drive unit.
The control unit controls the drive unit so as to alternately execute the following steps.
◎ Steps to guide the yarn to the traverse drum with a swing width smaller than the set swing width by placing the lever member in the restricted position ◎ By placing the lever member in the unrestricted position, the yarn is fed to the traverse drum with the set swing width Step of guiding In this apparatus, a stepped package is obtained by forming a yarn layer having a wide winding width and a yarn layer having a narrow winding width alternately on the winding body.

The control unit may execute the above-described steps according to one of a plurality of preset winding pattern information. This simplifies the package forming operation.

The traverse groove of the traverse drum includes a first groove extending to widen the trajectory of the yarn toward the first side in the width direction of the traverse drum when the yarn is guided, and a traverse groove when the yarn is guided. You may have the 2nd groove | channel which extends so that the track | orbit of a thread | yarn may narrow toward the width direction 2nd side of a drum, and may cross | intersect a 1st groove | channel and form an intersection.
When the lever member is in the non-regulating position, the yarn moving in the first groove may continue to move in the first groove through the intersection.
When the lever member is in the restricting position, the yarn moving in the first groove may move to the second groove at the intersection and then move in the second groove.

The rotation support portion may further include an adapter that is detachable from at least one of the pair of support portions and the pair of support portions and supports the end of the winding body. Thereby, the winding body from which length differs with respect to a rotation support part can be mounted | worn.

The control unit includes a first portion, and a second portion having a yarn layer larger in diameter than the first portion and arranged in the longitudinal direction of the winding body with respect to the first portion. The first yarn layer wound around the first portion and the second portion with the first width from the end, and the first yarn layer are alternately stacked, and the second yarn with the second width shorter than the first width from the reference end You may control a drive part so that it may have the 2nd yarn layer wound only in the part.
The control unit includes a third portion in which the yarn is aligned in the longitudinal direction of the winding body with respect to the second portion, and the yarn layer has a larger diameter than the second portion, and the yarn includes the first yarn layer and the second portion. The drive unit may be controlled so as to have a third yarn layer that is alternately stacked with the yarn layer and wound around only the third portion with a third width shorter than the second width from the reference end. .

The control unit may control the drive unit such that the number of traverses of the first yarn layer, the second yarn layer, and the third yarn layer is a ratio of 2: 3: 4.
The number of drum winds for forming the first yarn layer, the second yarn layer, and the third yarn layer is 2.5 W: 2.0 W: 1.5 W, and the first yarn layer, the second yarn layer, the third The drive unit may be controlled so that the width of the yarn layer is 6 inches: 4 inches: 3 inches.

The control unit may control the drive unit such that the number of traverses of the first yarn layer, the second yarn layer, and the third yarn layer is a ratio of 1: 2: 2.

The control unit has a drum wind number for forming the first yarn layer, the second yarn layer, and the third yarn layer of 2.0 W: 1.5 W: 1.5 W, and the first yarn layer, the second yarn The drive unit may be controlled so that the widths of the layer and the third yarn layer are 4 inches: 3.8 inches: 3 inches.
The yarn includes a first portion, and a second portion having a larger diameter than the first portion and arranged in the longitudinal direction of the winding body with respect to the first portion. The first yarn layer wound around the first portion and the second portion with a width of and the first yarn layer are alternately laminated and wound only on the second portion with a second width shorter than the first width from the reference end. And the second thread layer.
Hereinafter, an example in which the first lever member and the second lever member are provided will be described. For example, the first lever member is disposed between the original swing widths of the yarn, and shortens the swing width of the yarn by restricting further movement of the yarn at the restriction position. The second lever member is disposed between the original swing widths of the yarn, and further reduces the swing width of the yarn by restricting further movement of the yarn at the restriction position. That is, the swing width of the yarn becomes shorter as the folding position of one side becomes closer to the original position, the first lever member, and the second lever member. As described above, the yarn guided from the traverse drum to the winding body has the widest yarn layer, the intermediate yarn layer partially overlapped in the drum width direction with one end aligned with the yarn layer, A thread layer having the shortest width partially overlapping in the drum width direction with one end aligned is formed.

A yarn winding method according to another aspect of the present invention includes a rotation support portion to which a winding body is mounted, a yarn guide portion having a traverse drum, and a yarn guide portion having a traverse drum, and a traverse drum. By restricting the position where the yarn can be moved in the direction of the rotation axis, the position where the yarn is guided to the traverse drum with the set swing width and the position where the yarn can be moved in the direction of the rotation axis of the traverse drum are restricted. Thus, the yarn winding device is provided with a lever member that is movable between a regulating position that guides the yarn with a swing width narrower than the set swing width to the traverse drum. The yarn winding method includes the following steps.
◎ First step of guiding the yarn to the traverse drum with a swing width smaller than the set swing width by placing the lever member in the restricted position ◎ By placing the lever member in the unrestricted position, the set swing width to the traverse drum The second step of guiding the yarn and guiding the yarn into the traverse groove different from the first step of the traverse drum realizes step winding by alternately executing the first step and the second step, or the first step The thread winding with a width narrower than the set swing width is realized by continuously executing.
In this method, the swing width of the yarn guided by the traverse drum can be changed by moving the lever member between the restriction position and the non-restriction position. Specifically, when the lever member is in the restricted position, the yarn is guided to the traverse drum with a swing width smaller than the set swing width, and when the lever member is in the non-restricted position, the thread is traversed with the set swing width. It is guided by the drum and passes through a drum groove different from the case where it is not regulated. In this way, it is possible to form a yarn layer with a wide winding width and a yarn layer with a narrow winding width. As a result, a package having a narrow winding width can be created, and separately from this, a stepped winding in which a yarn layer having a narrow winding width and a yarn layer having a wide winding width can be formed in one package.

In the yarn winding device according to the present invention, the degree of freedom in changing the setting of the winding width is increased.

The typical front view which shows the yarn winding unit of the automatic winder according to the first embodiment. Schematic diagram of the package. The typical sectional view of a package. The typical front view showing the 1st thread winding operation. The typical front view showing the 2nd yarn winding operation. A typical front view showing the 3rd yarn winding operation. The groove development view of a traverse drum. The block diagram which shows the control structure of an automatic winder. 6 is a flowchart for explaining a yarn winding operation. A typical sectional view showing the 1st thread winding operation. A typical sectional view showing the 2nd yarn winding operation. A typical sectional view showing the 3rd yarn winding operation. A typical sectional view showing the 1st thread winding operation. A typical sectional view showing the 2nd yarn winding operation. A typical sectional view showing the 3rd yarn winding operation. A typical sectional view showing the 1st thread winding operation. The groove expansion | deployment figure of the traverse drum for showing the groove movement of the thread | yarn in 1st thread winding operation | movement. The groove development view of the traverse drum for showing the movement of the yarn groove in the second yarn winding operation. The groove expansion | deployment figure of the traverse drum for showing the groove movement of the thread | yarn in the 3rd thread winding operation | movement. The typical front view which shows the structure of the cradle which concerns on 2nd Embodiment.

1. First Embodiment (1) Basic Structure of Automatic Winder An automatic winder 1 will be described with reference to FIG. FIG. 1 is a schematic front view showing a yarn winding unit of an automatic winder according to a first embodiment.
The automatic winder 1 has a yarn winding unit 2. The yarn winding unit 2 winds the yarn 4 unwound from the yarn supplying bobbin 3 around the winding tube 6 (an example of a winding body) while traversing the traverse drum 5 to form a yarn layer. An apparatus for forming the package 7. Although only one yarn winding unit 2 is shown in FIG. 1, an automatic winder 1 is configured by arranging a large number of such yarn winding units 2 on a machine base (not shown).
The take-up tube 6 is a take-up body having no flanges at both ends. The winding tube 6 has a cone shape, but may have a cylindrical shape.

The yarn feeding bobbin 3 is mounted on a tray, supplied to the yarn winding unit 2 by a conveyor (not shown), and discharged after the yarn winding operation.
As an example of the winding unit, the yarn winding unit 2 includes a cradle 8 (an example of a rotation support unit) that detachably supports the winding tube 6, a yarn guide unit 12 that guides the yarn 4 to the winding tube 6, have. The yarn guide portion 12 has a traverse drum 5 that rotates at a predetermined rotational speed while contacting the peripheral surface of the winding tube 6 or the peripheral surface of the package 7.

The cradle 8 sandwiches both ends of the take-up tube 6 and supports it rotatably. Further, the cradle 8 is configured to be tiltable about the rotation shaft 10, and the cradle 8 increases the winding thickness (increase in the diameter of the yarn layer) associated with the winding of the yarn 4 around the winding tube 6 or the package 7. Can be absorbed by rotating. The winding tube 6 or the package 7 is driven and rotated by rolling contact with the traverse drum 5.

The traverse drum 5 traverses the yarn 4 on the surface of the package 7 and rotates the package 7. The traverse drum 5 is rotationally driven by a package drive mechanism 41 (FIG. 8). The package drive mechanism 41 includes a motor, a power transmission mechanism, and the like.
A spiral traverse groove 9 is formed on the outer peripheral surface of the traverse drum 5. The yarn 4 is wound around the surface of the winding tube 6 while being traversed (traversed) with a constant width by the traverse groove 9. Thereby, the package 7 is formed.
A unit control unit 50 (FIG. 8) responsible for controlling the yarn winding unit 2 is provided for each yarn winding unit 2.

The yarn winding unit 2 includes a yarn joining device 14, a yarn clearer 15, a waxing device 24, and a cleaning pipe 25 in order from the yarn feeding bobbin 3 side in the yarn traveling path between the yarn feeding bobbin 3 and the traverse drum 5. Is provided.
The yarn joining device 14 includes a lower yarn 4L as the yarn 4 on the yarn feeding bobbin 3 side when the yarn clearer 15 detects a yarn defect, or when the yarn 4 is cut from the yarn feeding bobbin 3, The upper yarn 4U as the yarn 4 on the package 7 side is spliced.
The yarn clearer 15 is for detecting a thickness defect of the yarn 4, and detects the thickness of the yarn 4 passing through the detecting portion of the yarn clearer 15 by an appropriate sensor, and a signal from this sensor Is analyzed by an analyzer (not shown) to detect yarn defects such as slabs. The yarn clearer 15 is provided with a cutter 16 for cutting the yarn 4 immediately when a yarn defect is detected.

On the lower side and the upper side of the yarn joining device 14, a lower yarn suction catching and guiding mechanism 17 that sucks and catches the lower yarn 4L on the yarn feeding bobbin 3 side and guides it to the yarn joining device 14, and an upper yarn 4U on the package 7 side. An upper thread suction catching and guiding mechanism 20 for sucking and catching and guiding to the yarn joining device 14 is provided.
The upper thread suction catching and guiding mechanism 20 is configured in a pipe shape and includes a suction mouth 22 at the tip. The upper thread suction catching / guiding mechanism 20 includes a pipe 20a extending from the suction mouth 22 and a shaft 21 that rotatably supports the pipe 20a. The pipe 20a is connected to a shutter device (not shown) via a connecting pipe (not shown). That is, the base end of the upper thread suction catching and guiding mechanism 20 is connected to a blower (not shown) via a shutter device (not shown).

The lower thread suction catching and guiding mechanism 17 is also configured in a pipe shape and includes an air intake port 19 at the tip. The lower thread suction catching and guiding mechanism 17 includes a relay pipe 17a provided so as to be pivotable up and down around a shaft 18, and a connecting pipe (not shown) for connecting it to a blower duct (not shown). .
The waxing device 24 is a device that applies an appropriate wax to the traveling yarn 4.

The cleaning pipe 25 is a device that sucks and removes foreign matter adhering to the traveling yarn 4. The proximal end of the cleaning pipe 25 is connected to a blower via a shutter device (not shown), and a suction port is formed at the distal end of the cleaning pipe 25. The suction port of the cleaning pipe 25 is brought close to the yarn 4 traveling between the waxing device 24 and the traverse drum 5.

(2) Package The package 7 is demonstrated using FIG.2 and FIG.3. FIG. 2 is a schematic diagram of the package. FIG. 3 is a schematic cross-sectional view of the package.
The package 7 has a stepped cone shape, and has three steps in this embodiment. Specifically, the first stage 7A having the smallest diameter (an example of the first part), the second stage 7B having an intermediate diameter (an example of the second part), and the third stage 7C having the largest diameter are provided. Have.

The package 7 has a first thread layer 51 formed in the entire width direction (over the first stage 7A to the third stage 7C) and a narrower width and one side in the width direction (second stage 7B to third stage 7C). The second thread layer 53 formed over the third thread layer 55 is formed alternately with the narrower width and one side in the width direction (in the third step 7C). That is, the first stage 7A is configured by a plurality of first thread layers 51, the second stage 7B is configured by a plurality of first thread layers 51 and second thread layers 53, and the third stage 7C is configured by A plurality of first thread layers 51, second thread layers 53, and third thread layers 55 are configured.
In other words, the first yarn layer 51 is wound with a width A from the reference end P on the right side of the drawing, and the second yarn layer 53 is wound with a width B shorter than the first yarn layer 51 from the reference end on the right side of the drawing. The third yarn layer 55 is wound with a width C shorter than that of the second yarn layer 53 from the reference end on the right side of the drawing.
When the yarn is unwound from the package 7, the third yarn layer 55, the second yarn layer 53, and the first yarn layer 51 are repeatedly unwound in this order after the outermost first yarn layer 51. Go.

As described above, since the stepped structure having the first step 7A and the second step 7B of yarns having different outer diameters is realized, the yarn is less likely to contact the yarn layer during unwinding. Specifically, when the second stage 7B is released, the yarn does not contact the first stage 7A. As a result, the unwinding tension is reduced.
Furthermore, the first yarn layer 51 and the second yarn layer 53 constituting the first step 7A and the second step 7B of the yarn are alternately laminated. Therefore, the bobbin which avoids the danger zone of latching is realizable.
The boundary of each step changes smoothly, that is, an angular portion is not formed on the surface. The reason is that the first yarn layer 51 continuously covers the step portion of the second yarn layer 53 from the first step 7A to the second step 7B, and the first yarn layer 51 is covered with the step portion of the second yarn layer 53. Is continuously covered from the second step 7B to the third step 7C, and the second yarn layer 53 continuously covers the step portion of the third yarn layer 55 from the second step 7B to the third step 7C. It is.

(3) Bobbin Width Adjusting Device The yarn winding unit 2 has a bobbin width adjusting device 61. The bobbin width adjusting device 61 regulates the traverse of the traversing yarn 4 so that the yarn 4 passes through the traverse groove 9 different from the conventional one, and thereby a yarn layer having a narrower width than that in the non-regulated case. Is a device for forming the above on the winding tube 6.
As shown in FIG. 2, the bobbin width adjusting device 61 has a lever member 62. The lever member 62 includes a first guide lever 63 and a second guide lever 65 as a plurality of lever members. The first guide lever 63 and the second guide lever 65 are provided on the yarn guide side in the vicinity of the traverse drum 5. Specifically, the first guide lever 63 and the second guide lever 65 are arranged in the above order from the left side to the right side of the drawing, corresponding to different positions in the rotational axis direction of the traverse drum 5. Has been placed.

The first guide lever 63 and the second guide lever 65 are movable between a restricted position and a non-restricted position, respectively. In the restricting position, the first guide lever 63 and the second guide lever 65 restrict the movable position of the yarn 4 in the rotational axis direction of the traverse drum in the yarn swing passage region, so that the narrow swing width of the traverse drum 5 is reduced. Then guide the thread 4. In the non-restricted position, the first guide lever 63 and the second guide lever 65 do not restrict the movable position of the yarn 4 in the rotational axis direction of the traverse drum by moving out of the yarn swing passage region. The thread 4 is guided at the set swing width. The first guide lever 63 and the second guide lever 65 guide the yarn 4 into different traverse grooves 9 of the traverse drum 5 at a restriction position and a non-regulation position (described later). The “set swing width” is a traverse width defined for each traverse drum 5.
In this embodiment, since the number of guide levers is 2, three types of winding widths can be realized in the package 7 (described later).
The bobbin width adjusting device 61 has a traverse forming mechanism 43 (FIG. 8) for controlling the operation of the first guide lever 63 and the second guide lever 65 (described later).

The outline of the first to third yarn winding operations will be described with reference to FIGS. FIG. 4 is a schematic front view showing the first yarn winding operation. FIG. 5 is a schematic front view showing the second yarn winding operation. FIG. 6 is a schematic front view showing the third yarn winding operation.
In the first yarn winding operation, as shown in FIG. 4, the first guide lever 63 and the second guide lever 65 are in the non-restricted position, so that the yarn 4 is not restricted and is swung with respect to the traverse drum 5. Guided by width. Therefore, the first thread layer 51 is formed.

In the second yarn winding operation, as shown in FIG. 5, only the first guide lever 63 is in the restricting position. Therefore, the yarn 4 is restricted and guided to the traverse drum 5 with a medium swing width. Specifically, the yarn 4 is not swung further to the left side in the drawing by the first guide lever 63. As a result, the second thread layer 53 is formed.
In the third yarn winding operation, as shown in FIG. 6, only the second guide lever 65 is in the restricting position, so that the yarn 4 is restricted and guided to the traverse drum 5 with the smallest swing width. Specifically, the yarn 4 is not swung further to the left side of the drawing by the second guide lever 65. As a result, the third thread layer 55 is formed.

The groove shape of the traverse drum 5 will be described with reference to FIG. FIG. 7 is a developed view of the groove of the traverse drum. The direction of rotation of the traverse drum 5 is indicated by an arrow R.
The traverse groove 9 of the traverse drum 5 is formed in a spiral shape, and mainly includes a traverse forward path 71 (an example of a first groove) and a traverse return path 73 (an example of a second groove). . The traverse forward path 71 extends diagonally to the lower left in the figure, and is indicated as three grooves in the figure. In other words, the traverse forward path 71 extends so as to widen the path of the yarn 4 toward the left side (the first side in the width direction) of the traverse drum 5 when the yarn 4 is guided in the groove. Specifically, in FIG. 7, the traverse forward path 71 extends in the order of point a → point b → point c → point d.
The traverse return path 73 extends diagonally to the lower right in the figure, and is shown as two grooves in the figure. In other words, the traverse return path 73 extends so as to narrow the track of the yarn 4 toward the right side (second side in the width direction) of the traverse drum 5 when the yarn 4 is guided in the groove. Specifically, in FIG. 7, the traverse return path 73 extends in the order of point d → point e → point a.

The traverse forward path 71 and the traverse return path 73 have a first intersection 75 (an example of an intersection) and a second intersection 77 (an example of an intersection). The first intersection 75 is provided at a position about 2/3 from the right end of the drum width in FIG. The second intersection 77 is provided at a position about 1/3 from the right end of the drum width in FIG.
With the above configuration, the yarn 4 traversed to the left side in the traverse forward path 71 is traversed to the right side in the figure by the traverse return path 73 and returns to the original position. In this way, the yarn 4 traversed by the traverse groove 9 is wound on the winding tube 6.

In the first yarn winding operation described above, the width range in which the yarn 4 moves in the traverse groove 9 on the traverse drum 5 is the entire drum width indicated by the width A (for example, 6 inches).
In the above-described second yarn winding operation, the width range in which the yarn 4 moves in the traverse groove 9 on the traverse drum 5 is between the right end of the traverse drum 5 shown by the width B and the first intersection 75 ( For example, 4 inches).
In the above-described third yarn winding operation, the width range in which the yarn 4 moves on the traverse drum 5 in the traverse groove 9 is between the right end of the traverse drum 5 shown by the width C and the second intersection 77 ( For example, 3 inches).

(4) Control Configuration of Yarn Winding Unit A control configuration of the yarn winding unit 2 will be described with reference to FIGS. 8 and 9. FIG. 8 is a block diagram showing a control configuration of the automatic winder. FIG. 9 is a flowchart for explaining the yarn winding operation.
The yarn winding unit 2 has a unit controller 50.

The unit controller 50 includes a processor (for example, CPU), a storage device (for example, ROM, RAM, HDD, SSD, etc.) and various interfaces (for example, an A / D converter, a D / A converter, a communication interface, etc.). A computer system. The unit controller 50 performs various control operations by executing a program stored in the storage unit (corresponding to a part or all of the storage area of the storage device).
The unit controller 50 may be composed of a single processor, but may be composed of a plurality of independent processors for each control.

Some or all of the functions of each element of the unit control unit 50 may be realized as a program that can be executed by a computer system constituting the unit control unit 50. In addition, some of the functions of each element of the control unit may be configured by a custom IC.

The above-described package drive mechanism 41 is connected to the unit controller 50.
The unit controller 50 is connected to the traverse formation mechanism 43 described above. The traverse forming mechanism 43 is a mechanism for forming the stepped package 7. The traverse formation mechanism 43 includes a first drive mechanism 45 (an example of a drive unit), a second drive mechanism 47 (an example of a drive unit), and a rotation sensor 59.

The first drive mechanism 45 is an actuator that moves the first guide lever 63 between a restricted position and a non-restricted position, and is, for example, a solenoid. The first drive mechanism 45 may be a motor or a power transmission mechanism.
The second drive mechanism 47 is an actuator that moves the second guide lever 65 between a restricted position and a non-restricted position, and is, for example, a solenoid. The second drive mechanism 47 may be a motor, a power transmission mechanism, or the like.
The rotation sensor 59 is a sensor that outputs a signal every time the traverse drum 5 rotates 1/60.
Although not shown, the unit controller 50 is connected with a sensor for detecting the position of the yarn 4, sensors and switches for detecting the state of each device, and an information input device.

(5) Yarn winding operation The yarn winding operation of the package 7 will be described with reference to FIG.
The control flowchart described below is an example, and each step can be omitted or replaced as necessary. Also, a plurality of steps may be executed simultaneously, or some or all of them may be executed in an overlapping manner.
Furthermore, each block of the control flowchart is not limited to a single control operation, and can be replaced with a plurality of control operations represented by a plurality of blocks.
The operation of each device is a result of a command from the control unit to each device, and these are represented by each step of the software application.

First, the guide lever switching timing determination method will be described. First, the number of drum winds is the number of rotations of the traverse drum rotated while traversing once (the yarn is reciprocated once between both ends of the drum groove). Therefore, the number of rotations of the drum necessary for traversing once (reciprocating the drum once) differs depending on the number of drum winds. For this reason, the number of signal inputs from the rotation sensor 59 is also different.
The relationship between the number of drum winds, the number of drum rotations / TRV, and the number of drum rotation signal inputs / TRV is, for example, as follows.

From the above, the number of drum winds (how many winds are wound) is determined according to the state of the guide lever (restricted position or non-restricted position), and further, it is determined how many times the drum rotates once. As described above, the guide lever can be moved between the restricted position and the non-restricted position at an appropriate timing for each number of winds.

Hereinafter, with reference to FIG. 9, the package 7 having 2.5 W (6 inches): 2.0 W (4 inches): 1.5 W (3 inches) = 2: 3: 4 (number of traverses (number of layers)) The formation will be described.
In step S1, a first yarn winding operation is performed. Specifically, the unit controller 50 sets the drum wind number to 2.5 W by moving the first guide lever 63 and the second guide lever 65 to the non-regulating position. Then, two yarn layers are formed in this state. When the drum rotation signal is input 150 × 2 = 300 times, the formation of the first yarn layer 51 is finished.
In step S2, it is determined whether or not the package 7 is completed. If not, the process moves to step S3. If so, the process ends.

In step S3, a second yarn winding operation is performed. Specifically, the unit controller 50 switches the drum wind number to 2.0 W by moving the first guide lever 63 to the restriction position. Then, three yarn layers are formed in this state. When the drum rotation signal is input 120 × 3 = 360 times, the formation of the second yarn layer 53 is finished.
In step S4, a third yarn winding operation is performed. Specifically, the unit controller 50 switches the drum wind number to 1.5 W by moving the first guide lever 63 to the non-restricted position and moving the second guide lever 65 to the restricted position. Then, four yarn layers are formed in this state. When the drum rotation signal is inputted 90 × 4 = 360 times, the formation of the third yarn layer 55 is finished.

As described above, the first yarn layer 51, the second yarn layer 53, and the third yarn layer 55 are repeatedly formed, and finally the first yarn layer 51 is formed, whereby the package 7 is completed.
Unit controller 50 executes the above-described steps according to one of a plurality of preset winding pattern information. Specifically, the unit control unit 50 reads the winding pattern information stored in the storage unit automatically or in accordance with an operation from the operator, and executes control based on the winding pattern information. This simplifies the package manufacturing operation. Alternatively, the operator may input a winding pattern to the unit controller 50 each time.

In the above-described package manufacturing method, the step of winding the first yarn layer 51 around the winding tube 6, the second yarn layer is superimposed on the first yarn layer 51 in the longitudinal direction of the winding tube 6 in a range shorter than the first yarn layer 51. The step of winding 53 and the step of winding the third yarn layer 55 on the second yarn layer 53 in a range shorter than the second yarn layer 53 in the longitudinal direction of the winding tube 6 are alternately repeated. As a result, the first stage 7A, the second stage 7B having a larger diameter than the first stage 7A and the third stage having a larger diameter than the second stage 7B are aligned in the longitudinal direction of the winding tube 6 with respect to the first stage 7A. A yarn layer having a step 7C is formed.
The operation for changing the width of each yarn layer will be described in detail as follows. The swing width of the yarn 4 guided by the traverse drum 5 can be changed by moving the first guide lever 63 and the second guide lever 65 between the restriction position and the non-restriction position. Specifically, when the first guide lever 63 and the second guide lever 65 are in the non-regulating position, the yarn 4 is guided to the traverse drum 5 with a wide swing width, and the first guide lever 63 and the second guide lever 65. Yarn 4 is guided to the traverse drum 5 with a narrow swing width, and the yarn 4 passing through the traverse groove 9 different from the uncontrolled case is wound around the winding tube 6 with a narrow winding width. It is burned. In this way, for example, a first yarn layer having a wide winding width and a second yarn layer having a narrow winding width can be formed. A stepped package 7 can be obtained by combining yarn layers having a wide winding width.

The formation of each yarn layer in the above-described yarn winding operation will be described in detail with reference to FIGS. 10 to 16 are schematic cross-sectional views showing each yarn winding operation.
As shown in FIG. 10, as the first yarn winding operation, the first yarn layer 51 is formed on the entire surface of the winding tube 6 (step S1 in FIG. 9).
As shown in FIG. 11, as the second yarn winding operation, the second yarn layer 53 is formed on the first yarn layer 51 (step S3 in FIG. 9).
As shown in FIG. 12, as the third yarn winding operation, the third yarn layer 55 is formed on the second yarn layer 53 (step S4 in FIG. 9).

As shown in FIG. 13, as the first yarn winding operation, the first yarn layer 51 is formed on the previous first yarn layer 51, second yarn layer 53, and third yarn layer 55 (see FIG. 9). Step S1).
As shown in FIG. 14, the second yarn layer 53 is formed on the first yarn layer 51 as the second yarn winding operation (step S3 in FIG. 9).
As shown in FIG. 15, as the third yarn winding operation, the third yarn layer 55 is formed on the second yarn layer 53 (step S4 in FIG. 9).
As shown in FIG. 16, as the first yarn winding operation, the first yarn layer 51 is formed on the third yarn layer 55 (step S1 in FIG. 9). As a result, the package 7 is completed.

As described above, since the first yarn layer 51 covers the step portions of the second yarn layer 53 and the third yarn layer, the change in the height of the yarn layer at the step portion is reduced, and the change in the height is gentle. Become. Therefore, the number of yarn layers can be increased and the weight of the package 7 can be increased.
In the above embodiment, the set of the first yarn layer 51, the second yarn layer 53, and the third yarn layer 55 is repeated twice, but may be three times or more.
Furthermore, in the above embodiment, the number of types of yarn layers constituting the repeated set is 3, but may be 2 or 4 or more.

The yarn groove movement in each yarn winding operation will be described with reference to FIGS. FIGS. 17 to 19 are groove development views of the traverse drum for showing the movement of the yarn groove in each yarn winding operation.
As shown in FIG. 17, in the first yarn winding operation (step S1 in FIG. 9), the yarn 4 moves in the traverse groove 9 of the traverse drum 5 as follows. The order is point a → point b → point c → point d → point e → point a. More specifically, since the first guide lever 63 is in the non-restricted position, the yarn 4 moving along the traverse forward path 71 passes through the first intersection 75 and moves along the traverse forward path 71 as it is. As a result, the first thread layer 51 is formed.

In addition, although the above description is a case where a 6-inch 2.5W drum groove is used, a 6-inch 2.0W drum groove can also be used if necessary. Thereby, the variation of traverse width can be increased. In the yarn winding operation using the 6 inch 2.0 W drum groove, the yarn 4 moves in the traverse groove 9 of the traverse drum 5 as follows. Specifically, in FIG. 7, the order is point a → branch point 79 → point e → confluence 81 → point d → point e → point a.

As shown in FIG. 18, in the second yarn winding operation (step S3 in FIG. 9), the yarn 4 moves in the traverse groove 9 of the traverse drum 5 as follows. Point a → point b → point c → first intersection 75 → point e → point a. More specifically, since the first guide lever 63 is in the restricting position, the yarn 4 moving along the traverse forward path 71 moves to the traverse return path 73 at the first intersection 75 and then moves along the traverse return path 73. . As a result, the second thread layer 53 is formed.

As shown in FIG. 19, in the third yarn winding operation (step S4 in FIG. 9), the yarn 4 moves in the traverse groove 9 of the traverse drum 5 as follows. The order is point a → point b → second intersection 77 → point a. More specifically, since the second guide lever 65 is in the restricting position, the yarn 4 moving along the traverse forward path 71 moves to the traverse return path 73 at the second intersection 77 and then moves along the traverse return path 73. . As a result, the third thread layer 55 is formed.
In the above-described embodiment, the package having a winding width of 6 inches has been described, but the present invention can be applied to packages of other sizes. For example, the present invention can be applied to a package having a winding width of 4 inches. As an example, the package may be 2.0 W (4 inches): 1.5 W (3.8 inches): 1.5 W (3 inches) = 1: 2: 2 (number of traverses (number of layers)). Also in this case, latching of the danger zone can be avoided.

2. Second Embodiment A cradle embodiment will be described with reference to FIG. FIG. 20 is a schematic front view showing the structure of the cradle according to the second embodiment.
An adapter 83 is detachably attached to one support portion 8a of the cradle 8. The adapter 83 supports the end of the take-up tube 6. Thereby, the winding tube 6 having a different length with respect to the cradle 8 can be mounted.
As a modification, the adapter may be provided at the other support end of the cradle, or may be provided at the support ends on both sides of the cradle.

3. Other Embodiments Although a plurality of embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the invention. In particular, a plurality of embodiments and modifications described in this specification can be arbitrarily combined as necessary.
In the embodiment, step winding is realized by combining a narrow yarn width yarn layer and a wide yarn width yarn layer in one package, but other yarn winding methods can be realized. For example, a package with a narrow winding width can be produced by continuously guiding the yarn to the traverse drum with a narrow swing width with the lever member in the restricted position. Specifically, if the first guide lever 63 is disposed at the restriction position and the bobbin winding is continuously performed, a medium-width package can be obtained. Further, if the second guide lever 65 is arranged at the restricting position and the yarn winding is continuously performed, a package having a short width can be obtained.
The shape of the package may be a cone shape (conical shape) or a cheese shape (columnar shape).

In the first embodiment, the number of guide levers is two, and a three-stage stepped package is manufactured. However, the number of guide levers is not limited. For example, the number of guide levers may be one and a two-stage stepped package may be manufactured. Alternatively, the number of guide levers may be three or more.
In the first embodiment, the number of guide levers arranged at one restriction position at a time is one, but this number is not limited. For example, the number of guide levers that move to the restriction position at a time may be two. In that case, the swinging width of the yarn is limited between the two guide levers.
The present invention can also be applied to an air spinning machine and an open-end spinning machine.

The present invention can be widely applied to a yarn winding device.

1: Automatic winder 2: Yarn winding unit 3: Yarn feeding bobbin 4: Yarn 5: Traverse drum 6: Winding tube 7: Package 7A: First stage 7B: Second stage 7C: Third stage 8: Cradle 9: Traverse groove 10: Rotating shaft 11: Tray 14: Yarn splicing device 15: Yarn clearer 16: Cutter 17: Lower thread suction capture guide mechanism 17a: Relay pipe 19: Air intake 20: Upper thread suction capture guide mechanism 20a: Pipe 22: Suction mouse 24: Waxing device 25: Cleaning pipe 41: Package drive mechanism 43: Traverse formation mechanism 45: First drive mechanism 47: Second drive mechanism 50: Unit controller 51: First thread layer 53: Second Thread layer 55: Third thread layer 59: Rotation sensor 61: Thread winding width adjusting device 63: First guide lever 65: Second Idoreba 71: forward groove 73: Return groove 75: first intersection 77: second intersection

Claims

A rotation support part to which the winding body is mounted;
A yarn guide portion for guiding the yarn to the winding body, and a yarn guide portion having a traverse drum;
By not restricting the movable position of the yarn in the rotational axis direction of the traverse drum, an unregulated position for guiding the yarn with a set swing width to the traverse drum, and in the rotational axis direction of the traverse drum By restricting the movable position of the yarn, the yarn can be moved between a regulated position that guides the yarn with a swing width narrower than the set swing width to the traverse drum, and the restricted position and the non-restricted position. The yarn can be wound with different widths by guiding the yarns into different traverse grooves of the traverse drum, and step winding can be performed by repeating the yarn winding operations with different widths or narrower than the set swing width. A lever member capable of executing a bobbin winding having a width smaller than the set swinging width by continuing the bobbin winding operation;
Yarn winding device with
The yarn winding device according to claim 1, wherein the lever member includes a plurality of lever members provided corresponding to different positions in the rotational axis direction of the traverse drum.
A drive unit for driving the lever member;
A control unit for controlling the driving unit,
The controller is
A step of guiding the yarn with a swing width narrower than the set swing width to the traverse drum by disposing the lever member at the restricting position; and the traverse swing by disposing the lever member at the non-restricting position. The yarn winding device according to claim 1 or 2, wherein the driving unit is controlled so as to alternately execute a step of guiding the yarn with the set swing width to a drum.
The yarn winding device according to claim 3, wherein the control unit executes the step according to one of a plurality of preset winding pattern information.
The traverse groove of the traverse drum has a first groove extending so as to widen the trajectory of the yarn toward the first side in the width direction of the traverse drum when the yarn is guided, and the yarn is guided. A second groove that extends toward the second side in the width direction of the traverse drum to narrow the track of the yarn and intersects the first groove to form an intersection,
When the lever member is in the non-restricted position, the yarn that moves in the first groove continues to move in the first groove through the intersection,
The yarn moving in the first groove moves to the second groove at the intersection and then moves in the second groove when the lever member is in the restricting position. The yarn winding device according to any one of the above.
The rotation support portion includes a pair of support portions and an adapter that is detachable from at least one of the pair of support portions and supports an end portion of the winding body. Yarn winding device.
The control unit includes a first portion and a second portion having a yarn layer larger in diameter than the first portion, the yarn being aligned with the first portion in the longitudinal direction of the winding body. The yarn is alternately laminated with the first yarn layer and the first yarn layer wound around the first portion and the second portion with a first width from the reference end, and the first end from the reference end 4. The yarn winding device according to claim 3, wherein the driving unit is controlled so as to have a second yarn layer wound only on the second portion with a second width shorter than the width of the second yarn layer.
The control unit includes a third portion in which the yarn is arranged in a longitudinal direction of the winding body with respect to the second portion, and a yarn layer is larger in diameter than the second portion. The third yarn layer is alternately laminated with the first yarn layer and the second yarn layer, and is wound around only the third portion with a third width shorter than the second width from the reference end. The yarn winding device according to claim 7, wherein the driving unit is controlled as described above.
The said control part controls the said drive part so that the frequency | count of traverse of the said 1st thread layer, the said 2nd thread layer, and the 3rd thread layer may be a ratio of 2: 3: 4. Yarn winding device.
The number of drum winds for forming the first yarn layer, the second yarn layer, and the third yarn layer is 2.5 W: 2.0 W: 1.5 W, and the first yarn layer, the second yarn layer 10. The yarn winding device according to claim 9, wherein the driving unit is controlled so that a width of the yarn layer and the third yarn layer is 6 inches: 4 inches: 3 inches.
9. The control unit according to claim 8, wherein the control unit controls the driving unit so that the number of traverses of the first yarn layer, the second yarn layer, and the third yarn layer is a ratio of 1: 2: 2. The yarn winding device described.
The controller has a drum winding number for forming the first yarn layer, the second yarn layer, and the third yarn layer of 2.0 W: 1.5 W: 1.5 W, and the first yarn 12. The yarn winding device according to claim 11, wherein the driving unit is controlled so that a width of the layer, the second yarn layer, and the third yarn layer is 4 inches: 3.8 inches: 3 inches.
A rotation support portion to which a winding body is mounted, a yarn guide to the winding body, a yarn guide portion having a traverse drum, and the movement of the yarn in the rotational axis direction of the traverse drum By restricting the position, the non-restricted position where the yarn is guided to the traverse drum with a set swing width, and the position where the yarn can move in the rotational axis direction of the traverse drum, by restricting the position, the traverse drum And a lever member movable between a restriction position for guiding the yarn with a swing width narrower than the set swing width, and a yarn winding method by a yarn winding device,
A first step of guiding the yarn to the traverse drum with a swing width narrower than the set swing width by disposing the lever member at the restriction position;
By arranging the lever member at the non-regulating position, the yarn is guided to the traverse drum with the set swing width, and the yarn is guided to a traverse groove different from the first step of the traverse drum. The second step;
To achieve step winding by alternately repeating, or to achieve a bobbin with a width narrower than the set swing width by continuously executing the first step,
Yarn winding method.