CN110730754B

CN110730754B - Yarn winding device

Info

Publication number: CN110730754B
Application number: CN201880038110.3A
Authority: CN
Inventors: 寺尾雄帆; 奥川正太郎; 市原一喜
Original assignee: Murata Machinery Ltd
Current assignee: Murata Machinery Ltd
Priority date: 2017-06-15
Filing date: 2018-06-01
Publication date: 2021-05-04
Anticipated expiration: 2038-06-01
Also published as: EP3640173A1; EP3640173B1; CN110730754A; WO2018230372A1; EP3640173A4; JP2019001603A

Abstract

The invention provides a yarn winding device, which improves the freedom degree of setting and changing of winding width. In the yarn winding device (2), a first guide bar (63) is movable between a non-limiting position and a limiting position, the yarn (4) is guided to a traverse drum in a wide width by the movable position of the yarn (4) in the direction of the rotation axis of the traverse drum (5) being not limited in the non-limiting position, and the yarn is guided to the traverse drum in a width narrower than a set swing width by the movable position of the yarn in the direction of the rotation axis of the traverse drum being limited in the limiting position. The first guide bar (63) can perform winding operations of different widths by guiding the yarn to different traverse grooves (9) of the traverse drum at the restricted position and the non-restricted position, and can perform step winding by repeating the winding operations of different widths, or can perform winding of a width narrower than the set swing width by continuously performing the winding operation of a width narrower than the set swing width.

Description

Yarn winding device

Technical Field

The present invention relates to a yarn winding device.

Background

Conventionally, there is known an automatic winder which unwinds a yarn of a yarn supplying bobbin produced by a spinning machine or the like, removes yarn defects such as slubs, and splices the yarns of a plurality of yarn supplying bobbins to form one package (see patent documents 1 and 2).

Patent document 1: japanese laid-open patent publication No. 4-3778

Patent document 2: japanese patent laid-open publication No. 5-58549

Patent document 1 describes a method of winding a yarn in which a traverse width is changed by extending and contracting a switching guide 1 in a traverse drum winder.

Patent document 2 describes a yarn winding method in which a yarn guide 14 is attached to a yarn guide 6 in a traverse drum winder to restrict movement of a yarn to one side in a swing width direction, thereby forming cones having different winding widths.

However, the method described in patent document 1 cannot form a stepped package.

In the method described in patent document 2, the restriction guide 14 needs to be attached and detached 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.

Disclosure of Invention

The invention aims to improve the flexibility of setting and changing the winding width in a yarn winding device.

Hereinafter, a plurality of aspects will be described as means for solving the problem. These modes can be arbitrarily combined as required.

A yarn winding device according to one aspect of the present invention includes a rotation support portion, a yarn guide portion, and a lever member.

The winding body is attached to the rotation support portion.

The yarn guide section guides the yarn to the winding body and has a traverse drum.

The lever member is movable between a non-restricting position at which the yarn is guided to the traverse drum with a set swing width by not restricting a movable position of the yarn in a rotation axis direction of the traverse drum, and a restricting position at which the yarn is guided to the traverse drum with a swing width narrower than the set swing width by restricting the movable position of the yarn in the rotation axis direction of the traverse drum. The lever member can perform winding operations of different widths by guiding the yarn to different traverse grooves of the traverse drum at the restricting position and the non-restricting position, and can perform step winding by repeating the winding operations of different widths, or perform winding of a width narrower than the set swing width by continuously performing the winding operation of a swing width narrower than the set swing width. The term "different traverse grooves" means not all the same, and includes some of the same. The "set swing width" refers to a traverse width defined for each traverse drum.

In this apparatus, the swing width of the yarn guided to the traverse drum can be changed by moving the lever member between the restricting position and the non-restricting position. Specifically, when the lever member is at the non-restriction position, the yarn is guided to the traverse drum with a set swing width, and when the lever member is at the restriction position, the yarn is guided to the traverse drum with a swing width narrower than the set swing width, and when the lever member is not restricted, the yarn passes through different drum slots. In this way, a yarn layer having a wide winding width and a yarn layer having a narrow winding width can be formed. This makes it possible to form a package having a narrow winding width and, in addition, to form step winding in which a yarn layer having a narrow winding width and a yarn layer having a wide winding width are combined in one package.

The lever member may have a plurality of lever members provided at different positions in the direction of the rotation axis of the traverse drum.

In this device, if the number of the lever members is two, three winding widths can be realized.

The yarn winding device may further include: a driving unit that drives the lever member; and a control unit for controlling the drive unit.

The control unit controls the drive unit to alternately execute the following steps.

And 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.

And guiding the yarn to the traverse drum with the set swing width by disposing the lever member at the non-restriction position.

In this device, a stepped package can be obtained by alternately forming a yarn layer having a wide winding width and a yarn layer having a narrow winding width on the winding body.

The control unit may execute the above-described steps based on one of a plurality of preset winding mode information. This simplifies the package forming operation.

The traverse groove of the traverse drum may include: a first groove extending so as to spread the track of the yarn toward a first side in the width direction of the traverse drum when the yarn is guided; and a second groove extending so as to narrow the track of the yarn toward the second side in the width direction of the traverse drum when the yarn is guided, and intersecting the first groove to form an intersection.

It is also possible that the yarn moving in the first slot continues to move in the first slot through the crossover point while the lever member is in the non-restricting position.

The yarn moving in the first slot may be moved to the second slot at the crossing point and then moved in the second slot while the lever member is located at the restricting position.

The rotation support portion may include a pair of support portions and an adapter that is detachably attached to at least one of the pair of support portions and supports an end portion of the wound body. This allows the wound bodies having different lengths to be mounted on the rotation support portion.

The control unit may control the driving unit such that the yarn includes a first portion and a second portion arranged in the longitudinal direction of the wound body with respect to the first portion and having a larger diameter of the yarn layer than the first portion, and the yarn includes a first yarn layer wound around the first portion and the second portion from the reference end with a first width, and a second yarn layer alternately stacked with the first yarn layer and wound only around the second portion from the reference end with a second width shorter than the first width.

The control unit may control the driving unit such that the yarn has a third portion arranged in the longitudinal direction of the wound body with respect to the second portion and having a larger yarn layer diameter than the second portion, and the yarn has a third yarn layer which is alternately stacked with the first yarn layer and the second yarn layer and is wound only on the third portion from the reference end with a third width shorter than the second width.

The control unit may control the driving unit such that the number of traverses of the first yarn layer, the second yarn layer, and the third yarn layer is 2: 3: 4 in the same ratio.

The drive unit may be controlled so that the number of windings for forming the first, second, and third yarn layers is 2.5W, 2.0W, and 1.5W, and the widths of the first, second, and third yarn layers are 6 inches, 4 inches, and 3 inches.

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

The control unit may control the drive unit such that the number of windings for forming the first, second, and third yarn layers is 2.0W, 1.5W, and the widths of the first, second, and third yarn layers are 4 inches, 3.8 inches, and 3 inches.

The yarn may have a first portion and a second portion arranged in the longitudinal direction of the wound body with respect to the first portion, and the yarn layer may have a diameter larger than that of the first portion, and the yarn may have a first yarn layer wound around the first portion and the second portion from a reference end with a first width, and a second yarn layer alternately stacked with the first yarn layer and wound only around the second portion from the reference end with a second width shorter than the first width.

An example in which the first lever member and the second lever member are provided will be described below. For example, the first lever member is disposed between the original swing widths of the yarns, and the swing width of the yarns is shortened by restricting the movement of the yarns at the restriction position or more. The second lever member is disposed between the original swing widths of the yarns, and regulates the movement of the yarns at the regulating position to further shorten the swing width of the yarns. That is, the swing width of the yarn is reduced as the one-side folded position approaches 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 forms the yarn layer having the widest width, the yarn layer having the intermediate width partially overlapping in the drum width direction with one end aligned therewith, and the yarn layer having the shortest width partially overlapping in the drum width direction with one end aligned therewith.

In a yarn winding method according to another aspect of the present invention, a yarn winding device is used, the yarn winding device including: a rotation support part for mounting the winding body; a yarn guide section having a traverse drum for guiding a yarn to a winding body; and a lever member that is movable between a non-restricting position at which the yarn is guided to the traverse drum with a set swing width by not restricting a movable position of the yarn in a rotation axis direction of the traverse drum, and a restricting position at which the yarn is guided to the traverse drum with a swing width narrower than the set swing width by restricting the movable position of the yarn in the rotation axis direction of the traverse drum. The winding method comprises the following steps.

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.

A second step of guiding the yarn to the traverse drum with the set swing width by disposing the lever member at the non-restriction position, and guiding the yarn to a traverse groove different from the first step.

The step winding is realized by alternately executing the first step and the second step, or the winding of a width narrower than the set swing width is realized by continuously executing the first step.

In this method, the swing width of the yarn guided to the traverse drum can be changed by moving the lever member between the restricting position and the non-restricting position. Specifically, when the lever member is at the restricting position, the yarn is guided to the traverse drum with a swing width narrower than the set swing width, and when the lever member is at the non-restricting position, the yarn is guided to the traverse drum with the set swing width, and when the lever member is not restricted, the yarn passes through different drum slots. In this way, a yarn layer having a wide winding width and a yarn layer having a narrow winding width can be formed. This makes it possible to form a package having a narrow winding width and, in addition, to form step winding in which a yarn layer having a narrow winding width and a yarn layer having a wide winding width are combined in one package.

[ Effect of the invention ]

In the yarn winding device of the present invention, the flexibility of setting and changing the winding width is improved.

Drawings

Fig. 1 is a schematic front view showing a yarn winding unit of an automatic winder according to a first embodiment.

FIG. 2 is a schematic view of a roll.

Fig. 3 is a schematic sectional view of the package.

Fig. 4 is a schematic front view showing the first yarn winding operation.

FIG. 5 is a schematic front view showing a second yarn winding operation.

Fig. 6 is a schematic front view showing a third yarn winding operation.

Fig. 7 is a slot development view of the traverse drum.

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.

Fig. 10 is a schematic cross-sectional view showing the first yarn winding operation.

Fig. 11 is a schematic cross-sectional view showing the second yarn winding operation.

Fig. 12 is a schematic cross-sectional view showing a third yarn winding operation.

Fig. 13 is a schematic cross-sectional view showing the first yarn winding operation.

Fig. 14 is a schematic cross-sectional view showing the second yarn winding operation.

Fig. 15 is a schematic cross-sectional view showing a third yarn winding operation.

Fig. 16 is a schematic cross-sectional view showing the first yarn winding operation.

Fig. 17 is a groove development view of the traverse drum for showing the groove movement of the yarn in the first yarn winding operation.

Fig. 18 is a groove development view of the traverse drum for showing the groove movement of the yarn in the second yarn winding operation.

Fig. 19 is a groove development view of the traverse drum for showing the groove movement of the yarn in the third yarn winding operation.

Fig. 20 is a schematic front view showing the structure of a cradle according to the second embodiment.

Detailed Description

1. First embodiment

(1) Basic structure of automatic winder

The automatic winder 1 will be described with reference to fig. 1. 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 winding unit 2. The winding unit 2 is a device that moves the yarn 4 unwound from the yarn supplying bobbin 3 in the lateral direction by the traverse roller 5, and forms a tapered package 7 by winding the yarn layer around the winding tube 6 (an example of a winding body). In fig. 1, only one winding unit 2 is illustrated, and the automatic winder 1 is configured by arranging a plurality of such winding units 2 on a machine base, not shown.

The winding pipe 6 is a wound body having no flanges at both ends. Although the convolute duct 6 is conical, it may also be cylindrical in shape.

The yarn supplying bobbin 3 is attached to the tray, supplied to the yarn winding unit 2 by a conveyor (not shown), and removed after the yarn winding operation.

As an example of the winding section, the yarn winding unit 2 includes: a cradle 8 (an example of a rotation support portion) that detachably supports the take-up pipe 6; and a yarn guide portion 12 that guides the yarn 4 to the winding tube 6. The yarn guide 12 has a traverse drum 5 that rotates at a predetermined rotational speed while contacting the circumferential surface of the winding tube 6 or the circumferential surface of the package 7.

The cradle 8 holds and rotatably supports both ends of the take-up pipe 6. The cradle 8 is configured to be tiltable around the rotation shaft 10, and by the rotation of the cradle 8, it is possible to absorb thickening of the winding (increase in the diameter of the yarn layer) that accompanies the winding of the yarn 4 into the winding tube 6 or the package 7. The winding tube 6 or the package 7 is driven to rotate by rolling contact with the traverse roller 5.

The traverse roller 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 driving mechanism 41 (fig. 8). The package driving 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 traversed (moved laterally) at a constant width by the traverse groove 9 and wound around the surface of the winding tube 6. Thereby, the package 7 is formed.

A unit control portion 50 (fig. 8) that is responsible for control of the winding unit 2 is provided for each winding unit 2.

The winding unit 2 is configured such that a yarn splicing device 14, a yarn clearer 15, a waxing device 24, and a cleaning tube 25 are arranged in this order from the yarn supplying bobbin 3 side in a yarn running path between the yarn supplying bobbin 3 and the traverse drum 5.

The yarn splicing device 14 is configured to splice a lower yarn 4L as the yarn 4 on the yarn supplying bobbin 3 side and an upper yarn 4U as the yarn 4 on the package 7 side when the yarn clearer 15 detects a yarn defect and cuts the yarn or when the yarn 4 from the yarn supplying bobbin 3 breaks.

The clearer 15 detects a thickness defect of the yarn 4, detects the thickness of the yarn 4 passing through a portion of the detecting section of the clearer 15 by an appropriate sensor, and detects a yarn defect such as a slub by analyzing a signal from the sensor by an analyzer (not shown). The clearer 15 is provided with a cutter 16 for immediately cutting the yarn 4 when a yarn defect is detected.

Provided on the lower and upper sides of the joint device 14 are: a lower yarn suction/catching guide mechanism 17 for sucking and catching the lower yarn 4L on the yarn supplying bobbin 3 side and guiding the same to the yarn splicing device 14; and an upper yarn suction/catching guide mechanism 20 that sucks and catches the upper yarn 4U on the package 7 side and guides the same to the yarn splicing device 14.

The upper yarn suction/catching guide mechanism 20 is tubular and has a suction port 22 at the tip. The upper yarn suction catching guide mechanism 20 includes a pipe 20a extending from the suction port 22 and a shaft 21 rotatably supporting the pipe 20 a. 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 yarn suction/catching guide mechanism 20 is connected to a blower (not shown) via a shutter device (not shown).

The lower yarn suction catching guide mechanism 17 is also formed in a tubular shape and has an air inlet 19 at a tip end thereof. The lower yarn suction catching guide mechanism 17 includes a relay pipe 17a provided to be vertically rotatable about a shaft 18, and a coupling pipe (not shown) for coupling the relay pipe 17a and a blower duct (not shown).

The waxing device 24 is a device for applying a suitable wax to the running yarn 4.

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

(2) Package of paper

The package 7 will be described with reference to fig. 2 and 3. FIG. 2 is a schematic view of a roll. Fig. 3 is a schematic sectional view of the package.

The package 7 is of a stepped taper, in this embodiment three steps. Specifically, there is a first step 7A (an example of a first portion) with the smallest diameter, a second step 7B (an example of a second portion) with an intermediate diameter, and a third step 7C with the largest diameter.

The package 7 includes a first yarn layer 51 formed entirely in the width direction (the entire first step 7A to the entire third step 7C), a second yarn layer 53 formed on one side in the width direction (the entire second step 7B to the entire third step 7C) and having a width smaller than that of the first yarn layer 51, and a third yarn layer 55 formed on one side in the width direction (the entire third step 7C) and having a width smaller than that of the second yarn layer 53, alternately formed. That is, the first step 7A is constituted by a plurality of first yarn layers 51, the second step 7B is constituted by a plurality of first yarn layers 51 and second yarn layers 53, and the third step 7C is constituted by a plurality of first yarn layers 51, second yarn layers 53, and third yarn layers 55.

In other words, the first yarn layer 51 is wound with a width a from the reference end P on the right side in the figure, 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 in the figure, and the third yarn layer 55 is wound with a width C shorter than the second yarn layer 53 from the reference end on the right side in the figure.

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 sequentially and repeatedly unwound from the outermost first yarn layer 51.

As described above, since the stepped configuration having the first step 7A and the second step 7B different in the outer diameter of the yarn is realized, the yarn is difficult to contact with the yarn layer at the time of unwinding. Specifically, when the release of the second step 7B is achieved, the yarn does not contact the first step 7A. As a result, the unwinding tension is reduced.

The first yarn layers 51 and the second yarn layers 53 constituting the first steps 7A and the second steps 7B of the yarns are alternately stacked. Therefore, winding of yarn in a danger zone avoiding hooking can be achieved.

The boundaries of the steps change smoothly, i.e., no angular portions are formed on the surface. This is because the first yarn layer 51 continuously covers the step of the second yarn layer 53 from the first step 7A to the second step 7B, the first yarn layer 51 continuously covers the step of the second yarn layer 53 from the second step 7B to the third step 7C, and the second yarn layer 53 continuously covers the step of the third yarn layer 55 from the second step 7B to the third step 7C.

(3) Yarn winding width adjusting device

The winding unit 2 has a winding width adjusting device. The winding width adjusting device is a device for forming a yarn layer having a width narrower than that in a non-restricted state on the winding tube 6 by restricting the traverse of the yarn 4 during the traverse and passing the yarn 4 through a traverse groove 9 different from that in the conventional device.

As shown in fig. 2, the yarn winding width adjusting device has a lever member 62. The lever member 62 has 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 proximity to the traverse drum 5. Specifically, the first guide lever 63 and the second guide lever 65 are arranged in the above-described order corresponding to different positions in the rotation axis direction of the traverse drum 5, specifically, from the left side to the right side in the figure.

The first guide rod 63 and the second guide rod 65 are movable between a restricting position and a non-restricting 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 rotation axis direction of the traverse drum by passing through the yarn swing passage region, and guide the yarn 4 to the traverse drum 5 with a narrow swing width. In the non-restriction position, the first guide lever 63 and the second guide lever 65 are displaced from the yarn swing passage region, and the movable position of the yarn 4 in the direction of the rotation axis of the traverse drum is not restricted, so that the yarn 4 is guided to the traverse drum 5 with a set swing width. The first guide lever 63 and the second guide lever 65 guide the yarn 4 to different traverse grooves 9 (described later) of the traverse drum 5 at the restricted position and the unrestricted position. The "set swing width" refers to a traverse width defined for each traverse drum 5.

In this embodiment, since the number of the guide bars is two, three winding widths (described later) can be realized in the package 7.

The yarn winding width adjusting device includes a traverse forming mechanism 43 (fig. 8) (described later) for controlling the operation of the first guide lever 63 and the second guide lever 65.

The first to third yarn winding operations will be described in brief with reference to fig. 4 to 6. Fig. 4 is a schematic front view showing the first yarn winding operation. FIG. 5 is a schematic front view showing a second yarn winding operation. Fig. 6 is a schematic front view showing a 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 located at the non-restricting positions, and therefore the yarn 4 is guided with the widest swing width with respect to the traverse drum 5 without restriction. Thus, the first yarn layer 51 is formed.

In the second yarn winding operation, as shown in fig. 5, since only the first guide lever 63 is located at the restricting position, the yarn 4 is restricted and guided with a medium swing width with respect to the traverse drum 5. Specifically, the yarn 4 is not swung more to the left in the figure by the first guide lever 63. The result of the above is that the second yarn layer 53 is formed.

In the third yarn winding operation, as shown in fig. 6, since only the second guide lever 65 is located at the restricting position, the yarn 4 is restricted and guided with the narrowest swing width with respect to the traverse drum 5. Specifically, the yarn 4 is not swung more toward the left side in the figure by the second guide lever 65. The result of the above is the formation of the third yarn layer 55.

The groove shape of the traverse roller 5 will be described with reference to fig. 7. Fig. 7 is a slot development view of the traverse drum. The direction of rotation of the traversing drum 5 is indicated by 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 circuit 73 (an example of a second groove). The traverse forward path 71 extends obliquely leftward and downward in the drawing, and is shown as three grooves in the drawing. In other words, the traverse outward path 71 extends so as to widen the trajectory of the yarn 4 toward the left side (first side in the width direction) of the traverse drum 5 in the drawing when the yarn 4 is guided to the groove. Specifically, in fig. 7, the traverse outward path 71 extends in the order of point a → point b → point c → point d.

The traverse circuit 73 extends obliquely rightward and downward in the drawing, and is shown as two grooves in the drawing. In other words, the traverse circuit 73 extends so as to narrow the trajectory of the yarn 4 toward the right side (second side in the width direction) of the traverse drum 5 in the drawing when the yarn 4 is guided to the groove. Specifically, in fig. 7, the traverse circuit 73 extends in the order of point d → point e → point a.

The traverse forward path 71 and the traverse circuit 73 have a first intersection 75 (an example of an intersection) and a second intersection 77 (an example of an intersection). In fig. 7, the first intersection 75 is provided at a position 2/3 degrees from the right end of the drum width. In fig. 7, the second intersection 77 is provided at a position of 1/3 degrees from the right end of the drum width.

With the above configuration, the yarn 4 traversed to the left in the drawing in the traverse forward path 71 is next traversed to the right in the drawing by the traverse circuit 73, and returned to the original position. In this way, the yarn 4 traversed by the traverse groove 9 is wound around the winding tube 6.

In the first winding operation, the width of the yarn 4 moving on the traverse drum 5 and in the traverse groove 9 is the entire drum width (for example, 6 inches) represented by the width a.

In the second yarn winding operation, the width of the yarn 4 moving on the traverse drum 5 and in the traverse groove 9 is between the right end of the traverse drum 5 in the drawing indicated by the width B and the first cross point 75 (for example, 4 inches).

In the third yarn winding operation, the width of the yarn 4 moving on the traverse drum 5 and in the traverse groove 9 is between the right end of the traverse drum 5 in the figure indicated by the width C and the second cross point 77 (for example, 3 inches).

(4) Control structure of yarn winding unit

The control structure of the yarn winding unit 2 will be described with reference to fig. 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 control section 50.

The unit control section 50 is a computer system having a processor (e.g., CPU), a storage device (e.g., ROM, RAM, HDD, SSD, etc.), and various interfaces (e.g., a/D converter, D/a converter, communication interface, etc.). The unit control unit 50 executes a program stored in a storage unit (corresponding to a part or all of a storage area of the storage device) to perform various control operations.

The unit control unit 50 may be configured by a single processor, but may be configured by a plurality of processors independent for each control.

A part or all of the functions of the elements of the unit control section 50 may be realized as a program executable by a computer system constituting the unit control section 50. In addition, a part of the functions of each element of the control unit may be constituted by a specific IC.

The unit control section 50 is connected to the package driving mechanism 41.

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

The first drive mechanism 45 is an actuator, such as a solenoid, for moving the first guide rod 63 between the restricting position and the non-restricting position. The first drive mechanism 45 may be a motor or a power transmission mechanism.

The second drive mechanism 47 is an actuator for moving the second guide rod 65 between the restricting position and the non-restricting 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 outputs a signal every time the traverse drum 5 rotates 1/60 revolutions.

Although not shown, the unit control unit 50 is connected to a sensor for detecting the position of the yarn 4, a sensor and a switch for detecting the state of each device, and an information input device.

(5) Winding action

The yarn winding operation of the package 7 will be described with reference to fig. 9.

The control flow chart described below is an example, and each step can be omitted and replaced as necessary. Further, a plurality of steps may be executed simultaneously, or a part or all of the steps may be repeatedly executed.

Further, each block of the control flowchart is not limited to a single control operation, and may be replaced with a plurality of control operations expressed by a plurality of blocks.

The operations of the respective devices are the result of instructions from the control unit to the respective devices, and they are expressed by the respective steps of software and application.

First, a method of determining the timing of switching the guide lever will be described. First, the number of drum windings is the rotational speed of the traverse drum that rotates during one traverse (the yarn reciprocates once between both ends of the drum groove). Therefore, the rotational speed of the drum required for one traverse (one reciprocation of the drum) differs depending on the number of drum windings. Therefore, the number of signal inputs from the rotation sensor 59 is also different.

The relationship among the number of drum windings, drum rotational speed/TRV, and the number of drum rotation signal inputs/TRV is as follows.

Number of windings	Drum rotational speed/TRV	Drum rotation signal input times/TRV
			2.5W	2.5	150 times of
2.0W	2.0	120 times of
			1.5W	1.5	90 times (times)

From the above, the number of drum windings (winding with geometric coils) is determined from the state (restricted position or non-restricted position) of the guide lever, and it is determined from this that the drum rotates once every several times of traverse. As described above, the guide rod can be moved between the restricting position and the non-restricting position at an appropriate timing for each number of coils.

Hereinafter, the formation of the package 7 in which 2.5W (6 inches) to 2.0W (4 inches) to 1.5W (3 inches) is 2: 3: 4 (the number of traverse times (number of layers)) will be described with reference to fig. 9.

In step S1, a first yarn winding operation is performed. Specifically, the unit control unit 50 sets the number of windings to 2.5W by moving the first guide lever 63 and the second guide lever 65 to the non-restricting positions. In this state, a double yarn layer is formed. When the drum rotation signal is input 150 × 2 to 300 times, the formation of the first yarn layer 51 is completed.

In step S2, it is determined whether 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 control unit 50 switches the number of windings to 2.0W by moving the first guide lever 63 to the restricting position. In this state, three yarn layers are formed. When the drum rotation signal is input 120 × 3 times 360 times, the formation of the second yarn layer 53 is completed.

In step S4, a third yarn winding operation is performed. Specifically, the unit control portion 50 switches the number of windings to 1.5W by moving the first guide lever 63 to the non-restricting position and moving the second guide lever 65 to the restricting position. In this state, four yarn layers are formed. When the drum rotation signal is input 90 × 4 to 360 times, the formation of the third yarn layer 55 is completed.

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, thereby completing the package 7.

Further, the unit control portion 50 executes the above-described steps according to one of a plurality of winding mode information set in advance. Specifically, the unit control section 50 reads the winding mode information stored in the storage section automatically or according to an operation from a worker, and executes control based on the read information. This simplifies the package manufacturing operation. Alternatively, the worker may input the winding mode to the unit control unit 50 every time.

In the package manufacturing method, the step of winding the first yarn layer 51 around the winding tube 6, the step of winding the second yarn layer 53 on the first yarn layer 51 in a manner to overlap in a range shorter than the first yarn layer 51 in the longitudinal direction of the winding tube 6, and the step of winding the third yarn layer 55 on the second yarn layer 53 in a manner to overlap 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, a yarn layer having a first step 7A, a second step 7B arranged in the longitudinal direction of the winding tube 6 with respect to the first step 7A and having a larger diameter than the first step 7A, and a third step 7C having a larger diameter than the second step 7B is formed.

The operation of changing the width of each yarn layer will be described in detail below. By moving the first guide lever 63 and the second guide lever 65 between the restricting position and the non-restricting position, the swing width of the yarn 4 guided to the traverse drum 5 can be changed. Specifically, when the first guide lever 63 and the second guide lever 65 are located at the non-restriction position, the yarn 4 is guided to the traverse drum 5 with a wide swing width, and when the first guide lever 63 and the second guide lever 65 are located at the restriction position, the 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 that when the yarn is not restricted is wound around the winding bobbin 6 with a narrow winding width. 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, and thus, as described in the present embodiment, a stepped package 7 can be obtained by combining a yarn layer having a narrow winding width and a yarn layer having a wide winding width in one package.

The formation of each yarn layer in the yarn winding operation will be described in detail with reference to fig. 10 to 16. Fig. 10 to 16 are schematic cross-sectional views showing respective yarn winding operations.

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 a first yarn winding operation, the first yarn layer 51 is formed on the first yarn layer 51, the second yarn layer 53, and the third yarn layer 55 (step S1 in fig. 9).

As shown in fig. 14, 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. 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). The result of the above is the completion of the package 7.

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 yarn layer height of the step portion is small and gradual. Therefore, the number of yarn layers can be increased, and the weight of the package 7 can be increased.

In the above embodiment, the number of times of repetition of arranging the first yarn layer 51, the second yarn layer 53, and the third yarn layer 55 is two times, but may be three or more times.

In the above embodiment, the number of types of yarn layers constituting the repeated arrangement is three, but two types of yarn layers may be used, or four or more types of yarn layers may be used.

The groove movement of the yarn in each winding operation will be described with reference to fig. 17 to 19. Fig. 17 to 19 are groove development views of the traverse drum for showing the groove movement of the yarn in each winding operation.

As shown in fig. 17, in the first winding operation (step S1 in fig. 9), the yarn 4 moves in the traverse groove 9 of the traverse drum 5 as follows. In the order of point a → point b → point c → point d → point e → point a. More specifically, since the first guide lever 63 is located at the non-restriction position, the yarn 4 moving along the traverse outward path 71 passes through the first intersection 75 and moves along the traverse outward path 71 as it is. The result of the above is that the first yarn layer 51 is formed.

In the above description, the 6-inch 2.5W drum groove is used, but the 6-inch 2.0W drum groove may be used as needed. This can increase the change of the traverse width. In the yarn winding operation using the 6-inch 2.0W drum groove, the yarn 4 moves in the traverse groove 9 of the traverse drum 5 as described below. Specifically, in fig. 7, the point a → the branch point 79 → the point e → the confluence point 81 → the point d → the point e → the point a are arranged in this order.

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. In the order of point a → point b → point c → first intersection point 75 → point e → point a. More specifically, since the first guide lever 63 is located at the restriction position, the yarn 4 moving along the traverse forward path 71 moves to the traverse circuit 73 at the first intersection 75, and then moves along the traverse circuit 73. The result of the above is that the second yarn layer 53 is formed.

As shown in fig. 19, in the third winding operation (step S4 in fig. 9), the yarn 4 moves in the traverse groove 9 of the traverse drum 5 as follows. In the order of point a → point b → second intersection point 77 → point a. More specifically, since the second guide lever 65 is located at the restriction position, the yarn 4 moving along the traverse circuit 71 moves to the traverse circuit 73 at the second intersection 77 and then moves along the traverse circuit 73. The result of the above is the formation of the third yarn layer 55.

In the above embodiment, the package having the winding width of 6 inches is described, but the present invention can be applied to packages having other sizes. For example, the present invention can be applied to a package having a winding width of 4 inches. As an example, the following may be mentioned as 2.0W (4 inches): 1.5W (3.8 inches): 1.5W (3 inches) ═ 1: 2: 2 (number of traverses (number of layers)). In this case, hooking (ラッチング) of the danger zone can also be avoided.

2. Second embodiment

An embodiment of the cradle will be described with reference to fig. 20. Fig. 20 is a schematic front view showing the structure of a 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 convolute duct 6. This enables the winding pipe 6 having different lengths to be attached to the cradle 8.

As a modification, the adapter may be provided at the other support end of the cradle, or may be provided at both support ends of the cradle.

3. Other embodiments

While the 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, the plurality of embodiments and modifications described in the present specification can be arbitrarily combined as needed.

In the above embodiment, the step winding in which the yarn layer having a narrow winding width and the yarn layer having a wide winding width are combined in one package is realized, but other yarn winding methods can be realized. For example, if the lever member is positioned at the restriction position, the yarn is continuously guided to the traverse drum with a narrow swing width, and a package with a narrow winding width can be manufactured. Specifically, if the first guide bar 63 is disposed at the restriction position and winding is continuously performed, a package of an intermediate width can be obtained. Further, if the second guide rod 65 is disposed at the restriction position, winding is continuously performed, and a package having a short width can be obtained.

The shape of the wound package may be a cone shape (truncated cone shape) or a tube shape (cylindrical shape).

In the first embodiment, the number of the guide bars is two, and a three-step package is manufactured, but the number of the guide bars is not limited. For example, the number of guide bars may be one, making a two-step package. Alternatively, the number of the guide bars may be three or more.

In the first embodiment, the number of the guide rods arranged at the restriction position at a time is one, but the number is not limited. For example, the number of the guide bars that move to the restricting position at a time may be two. At this time, the swing width of the yarn is restricted between the two guide bars.

The invention can also be applied to air spinning frames and open spinning frames.

[ industrial applicability ]

The invention can be widely applied to yarn winding devices.

Description of reference numerals:

1 … automatic winder; 2 … yarn winding unit; 3 … yarn supplying bobbin; 4 … yarn; 5 … traversing the drum; 6 … winding the tube; 7 … roll package; 7a … first order; 7B … second step; 7C … third step; 8 … cradle; 9 … traversing groove; 10 … rotating shaft; 11 … trays; 14 … a connector device; 15 … yarn clearer; 16 … cutter; 17 … yarn suction catching guide mechanism; 17a … relay tube; 19 … air inlet; 20 … yarn suction catching guide mechanism; 20a … tube; 22 … suction inlet; 24 … waxing device; 25 … cleaning the tube; 41 … package driving mechanism; 43 … traversing forming mechanism; 45 … first drive mechanism; 47 … second drive mechanism; unit 50 … control section; 51 … a first yarn layer; 53 … a second yarn layer; 55 … a third yarn layer; 59 … rotation sensor; 63 … a first guide bar; 65 … second guide bar; 71 … outward groove; 73 … loop slot; 75 … first intersection; 77 … second intersection.

Claims

1. A yarn winding device is characterized by comprising:

a rotation support part for mounting the winding body;

a yarn guide section for guiding a yarn to the winding body, the yarn guide section having a traverse drum; and

a first lever member and a second lever member that are movable between a non-restriction position and a restriction position, the non-restriction position not restricting a movable position of the yarn in a rotation axis direction of the traverse drum, the restriction position restricting the movable position of the yarn in the rotation axis direction of the traverse drum and guiding the yarn to the traverse drum with a swing width narrower than that in the non-restriction position, the restriction position and the non-restriction position guiding the yarn to different traverse grooves of the traverse drum, the first lever member and the second lever member being provided corresponding to different positions in the rotation axis direction of the traverse drum, the first lever member and the second lever member being capable of performing winding operations of different widths by guiding the yarn to the different traverse grooves of the traverse drum, and performing step winding by repeating the winding operations of different widths,

the first lever member is disposed at a position where a yarn winding operation wider than the width of the second lever member is performed in a yarn weaving passage area,

when the first lever member and the second lever member are located at the non-restricting position, a yarn winding operation of a first width is performed,

when the first lever member is located at the restricting position and the second lever member is located at the non-restricting position, a yarn winding operation is performed in a second width which is narrower than the first width,

when the second lever member is positioned at the restricting position, the yarn winding operation is performed with a third width that is narrower than the second width in the yarn weaving passing region in the yarn winding operation performed by the first lever member, and thereby the winding operation is performed with a step difference that is two or more steps.

2. Yarn winding device according to claim 1,

the yarn winding device further includes: a driving unit that drives the first lever member and the second lever member; and a control section that controls the drive section,

the control unit controls the drive unit to repeatedly execute a combination of: disposing the first lever member and the second lever member at the non-restriction position; a step of disposing the first lever member at the restricting position and disposing the second lever member at the non-restricting position; and a step of disposing the second lever member at the restriction position.

3. Yarn winding device according to claim 2,

the control section executes the steps according to one of a plurality of preset winding mode information.

4. The yarn winding device according to any one of claims 1 to 3, wherein the traverse groove of the traverse roller has:

a first groove extending so as to spread a track of the yarn toward a first side in a width direction of the traverse drum when the yarn is guided; and

a second groove extending so as to narrow a track of the yarn toward a second side in the width direction of the traverse drum when the yarn is guided, and intersecting the first groove to form a first intersection and a second intersection disposed on the second side in the width direction of the traverse drum with respect to the first intersection,

the yarn moving in the first slot passes through the first crossing point and the second crossing point when the first rod member and the second rod member are located at the non-restricting position,

the yarn moving in the first slot moves to the second slot at the first crossing point when the first lever member is in the restricting position and the second lever member is in the non-restricting position,

the yarn moving in the first slot moves to the second slot at the second crossing point when the second lever member is located at the restraining position.

5. A yarn winding device according to any one of claims 1 to 3,

the rotation support portion has a pair of support portions and an adapter that is attachable to and detachable from at least one of the pair of support portions and supports an end portion of the wound body.

6. Yarn winding device according to claim 4,

7. Yarn winding device according to claim 2,

the control section controls the drive section in such a manner that:

the yarn has a first portion, a second portion arranged in the longitudinal direction of the wound body with respect to the first portion and having a larger diameter of a yarn layer than the first portion, and a third portion arranged in the longitudinal direction of the wound body with respect to the second portion and having a larger diameter of a yarn layer than the second portion,

the yarn includes a first yarn layer wound from a reference end to the first portion, the second portion, and the third portion with a first width, a second yarn layer wound from the reference end to the second portion and the third portion with a second width shorter than the first width over the first yarn layer, and a third yarn layer wound from the reference end to the third portion with a third width shorter than the second width over the second yarn layer.

8. A yarn winding device is characterized by comprising:

a rotation support part for mounting the winding body;

a lever member that is movable between a non-restriction position and a restriction position, wherein in the non-restriction position, the yarn is guided to the traverse drum with a set swing width by not restricting a movable position of the yarn in a rotation axis direction of the traverse drum, and in the restriction position, the yarn is guided to the traverse drum with a swing width narrower than the set swing width by restricting the movable position of the yarn in the rotation axis direction of the traverse drum, and in the restriction position and the non-restriction position, the yarn is guided to different traverse grooves of the traverse drum, whereby winding operations with different widths can be performed, winding operations with different widths can be repeated, step winding can be performed, or winding operations with a swing width narrower than the set swing width can be performed continuously, performing winding of a width narrower than the set swing width;

a driving unit that drives the lever member; and

a control section that controls the drive section,

the control section controls the drive section to alternately execute: a 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; and a step of guiding the yarn to the traverse drum with the set swing width by disposing the lever member at the non-restriction position, and the step of guiding the yarn to the traverse drum with the set swing width

The control section controls the drive section in such a manner that: the yarn has a first portion and a second portion arranged in a longitudinal direction of the wound body with respect to the first portion, and having a yarn layer with a larger diameter than the first portion, and has a first yarn layer wound around the first portion and the second portion from a reference end with a first width, and a second yarn layer alternately stacked with the first yarn layer and wound only around the second portion from the reference end with a second width shorter than the first width,

the control section controls the drive section in such a manner that: the yarn has a third portion that is aligned in the longitudinal direction of the wound body with respect to the second portion and has a yarn layer that has a larger diameter than the second portion, and the yarn has a third yarn layer that is alternately stacked with the first yarn layer and the second yarn layer and is wound only on the third portion from the reference end with a third width that is shorter than the second width.

9. Yarn winding device according to claim 8,

the control section controls the drive section in such a manner that:

the number of traverses of the first yarn layer, the second yarn layer, and the third yarn layer is 2: 3: 4 in the same ratio.

10. Yarn winding device according to claim 9,

controlling the drive section in the following manner:

the number of drum windings for forming the first, second, and third yarn layers is 2.5W, 2.0W, 1.5W,

the widths of the first, second, and third yarn layers are 6 inches, 4 inches, and 3 inches.

11. Yarn winding device according to claim 8,

the control section controls the drive section in such a manner that:

the number of traverse times of the first yarn layer, the second yarn layer, and the third yarn layer is 1: 2: 2, in the same ratio.

12. Yarn winding device according to claim 11,

the control section controls the drive section in such a manner that:

the number of drum windings for forming the first, second, and third yarn layers is 2.0W, 1.5W,

the widths of the first, second, and third yarn layers are 4 inches, 3.8 inches, 3 inches.

13. A yarn winding method using a yarn winding device is characterized in that,

the yarn winding device is provided with:

a rotation support part for mounting the winding body;

a first lever member and a second lever member that are movable between a non-restriction position at which the yarn is guided to the traverse drum with a set swing width by a movable position of the yarn in a rotation axis direction of the traverse drum being not restricted, and a restriction position at which the yarn is guided to the traverse drum with a swing width narrower than the set swing width by a movable position of the yarn in the rotation axis direction of the traverse drum being restricted,

wherein,

alternately repeating a first step of guiding the yarn to the traverse drum with a first swing width by disposing the first lever member and the second lever member at the non-restriction positions, a second step of guiding the yarn to the traverse drum with a first swing width, and a third step of realizing step winding,

in the second step, the first lever member is arranged at the restricting position and the second lever member is arranged at the non-restricting position, whereby the yarn is guided to the traverse drum with a second swing width narrower than the first swing width and is guided to a traverse groove of the traverse drum different from that of the first step,

in the third step, the second lever member is arranged at the restriction position, and the yarn is guided to the traverse drum at a third swing width that is narrower than the second swing width, and the yarn is guided to a traverse groove of the traverse drum that is different from the traverse groove in the first step and the second step.