阅读说明：本技术 卷装、卷装制造方法、以及纱线卷取装置 (Package, package manufacturing method, and yarn winding device ) 是由 市原一喜 寺尾雄帆 奥川正太郎 于 2018-06-01 设计创作，主要内容包括：在卷装中使退绕性良好且使得能够抑制锁线。卷装(7)具备无初始阶梯且两端无凸缘的卷取筒管(6)；以及卷绕于卷取筒管(6)的纱线(4)。纱线(4)具有：在卷取筒管(6)的长边方向排列的第一段(7A)；以及直径比第一段(7A)大的第二段(7B)。纱线(4)具有：从基准端(P)起以宽度(A)卷绕于第一段(7A)和第二段(7B)的第一纱层(51)；以及与第一纱层(51)交替地层叠,且从基准端(P)起以比宽度(A)短的宽度(B)仅卷绕于第二段(7B)的第二纱层(53)。(A package (7) is provided with a winding bobbin (6) having no initial step and no flanges at both ends, and a yarn (4) wound around the winding bobbin (6), wherein the yarn (4) has an th section (7A) arranged in the longitudinal direction of the winding bobbin (6), and a second section (7B) having a larger diameter than the th section (7A), and the yarn (4) has a th yarn layer (51) wound around the th section (7A) and the second section (7B) with a width (A) from a reference end (P), and a second yarn layer (53) alternately stacked with the th yarn layer (51) and wound around only the second section (7B) with a width (B) from the reference end (P) that is shorter than the width (A).)

1, kinds of packages, comprising:

a winding body without an initial step and flanges at two ends; and

the yarn wound around the winding body is wound,

the yarn has a th part and a second part which is arranged in the longitudinal direction of the winding body relative to the th part and has a larger yarn layer diameter than the th part,

the yarn includes -th yarn layers wound around the -th and second parts at a -th width from a reference end, and second yarn layers alternately stacked with the -th yarn layers and wound around only the second part at a second width shorter than the -th width from the reference end.

2. The package of claim 1,

the th yarn layer continuously covers the step of the second yarn layer from the th portion to the second portion.

3. The package of claim 1 or 2,

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,

the yarn has a third yarn layer which is alternately laminated with the th yarn layer and the second yarn layer, and is wound only around the third portion with a third width shorter than the second width from the reference end.

4. The package of claim 3,

the reciprocating times of the th yarn layer, the second yarn layer and the third yarn layer are in a ratio of 2: 3: 4.

5. The package of claim 4,

the number of drum windings for forming the th, second and third yarn layers was 2.5W: 2.0W: 1.5W,

the width of the th, second and third yarn layers was 6 inches to 4 inches to 3 inches.

6. The package of claim 3,

the number of times of reciprocating the th yarn layer, the second yarn layer and the third yarn layer is 1: 2: 2.

7. The package of claim 6,

the number of drum windings for forming the th, second and third yarn layers was 2.0W: 1.5W,

the width of the th, second and third yarn layers was 4 inches to 3.8 inches to 3 inches.

8, A package manufacturing method for manufacturing a package of a yarn having a winding body wound around both ends of the winding body without flanges,

forming a veil layer having a th portion and a second portion by alternately repeating:

a step of winding the th yarn layer on the winding body, and

a step of winding a second yarn layer in a range shorter than the th yarn layer in the longitudinal direction of the wound body,

the th part is arranged in the longitudinal direction of the winding body, and the second part is arranged in the longitudinal direction of the winding body with respect to the th part and has a larger diameter than the th part.

9, yarn winding device, comprising:

a winding section; and

a control section for causing the winding section to execute the package manufacturing method according to claim 8.

10. The yarn take-up device according to claim 9,

the winding section includes:

a rotation support part for assembling the winding body;

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

a lever member that is movable between a non-restriction position, at which the yarn is guided to the traverse drum with a swing width of width by not restricting a movable position of the yarn in a rotation axis direction of the traverse drum, and a restriction position, at which the yarn is supplied to the traverse drum with a narrow width by restricting the movable position of the yarn in the rotation axis direction of the traverse drum, the lever member guiding the yarn to different traverse grooves of the traverse drum at the restriction position and the non-restriction position,

the control unit performs the step of winding the th yarn layer by arranging the lever member at the non-restricting position, and performs the step of winding the second yarn layer by arranging the lever member at the restricting position.

11. The yarn take-up device according to claim 10,

the lever member includes a plurality of lever members provided corresponding to different positions in the direction of the rotation axis of the traverse drum.

Technical Field

The present invention relates to a package, a package manufacturing method, and a yarn winding device.

Background

Conventionally, there is known an automatic winder which unwinds a yarn of a yarn feeding bobbin produced by a spinning machine or the like, removes yarn defects such as slubby yarn, and splices the yarns of a plurality of yarn feeding bobbins to form 1 package.

Further, wound bodies of special yarns such as glass fibers and carbon fibers are known (see, for example, patent documents 1 and 2).

Wound body a of yarn described in patent document 1₂The outer diameter of the package is changed stepwise as shown in fig. 2 and 7, instead of using the spun yarn package.

In the wound body described in patent document 2, the annealed low carbon steel wire or wire is formed into a coil in consideration of whether the wire layer after winding reaches the bottom flange or the upper flange, and the -series layer is wound into the slender material in an amount larger at the bottom flange than at the upper flange, forming a conical base of the slender material on the core portion, the second -series layer is wound around the conical base and extended from the bottom flange to the top flange, thereby maintaining the conical shape of the slender material.

Disclosure of Invention

Problems to be solved by the invention

The winding method in patent document 2 may be applied to a low carbon steel wire or a metal wire, but is not preferable as a package of natural fibers such as cotton.

On the other hand, , in the package using spun yarn, the unwinding speed of the package is increased compared to that of the package, the reason for the decrease in the unwinding performance is that the fluff is bound to cause the yarn to be locked or mixed with the yarn in a broken state by tension, and further, if the unwinding tension is high, the yarn is broken at the weak portion of the yarn even if such a significant defect does not occur.

In addition, in a package of yarn using a yarn feeding bobbin produced by a spinning machine or the like, it is also desired to suppress yarn locking.

The purpose of the present invention is to improve unwinding performance and to suppress yarn locking in a package.

Means for solving the problems

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

The packages according to the embodiment of the present invention include a winding body having no initial step and no flanges at both ends, and a yarn wound around the winding body, the no flanges at both ends means that no flanges are formed at both ends of the body of the winding body, and the yarn includes a -th portion and a second portion which is aligned in the longitudinal direction of the winding body with respect to the -th portion and in which the diameter of a yarn layer is larger than that of the -th portion.

The yarn includes a -th yarn layer wound around the -th and second portions from the reference end at a -th width, and a second yarn layer alternately stacked with the -th yarn layer and wound around only the second portion from the reference end at a second width shorter than the -th width.

In this package, the yarn is wound around a winding body without a flange. In the case where the flange is present on the winding body unlike the present invention, the unwound yarn rubs against the flange and the natural fiber fluffs when the natural fiber is unwound.

In contrast to the present invention, in which the th yarn layer and the second yarn layer are continuously wound alternately, a stepped package can be formed even in a natural fiber package.

In this package, a stepped structure having th and second portions of yarn of different outer diameters can be realized, and therefore, the yarn hardly contacts the yarn layer during unwinding.

Further, the th part and the th yarn layer and the second yarn layer constituting the second part of the yarn are alternately stacked, and therefore, winding of the yarn avoiding the dangerous zone of the lock yarn can be realized.

The th yarn layer may cover the step of the second yarn layer continuously from the th portion to the second portion, whereby the change in the height of the yarn layer at the step is gentle, and as a result, the number of yarn layers can be increased, and the weight of the package can be increased.

The yarn may have 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,

the yarn has a third yarn layer which is alternately stacked with the th yarn layer and the second yarn layer and is wound only on a third portion with a third width shorter than the second width from the reference end.

The th yarn layer, the second yarn layer and the third yarn layer can also be formed in a ratio of 2: 3: 4 in reciprocating times.

The number of drum windings for forming the th, second, and third yarn layers may be 2.5W: 2.0W: 1.5W,

the width of the th, second, and third yarn layers was 6 inches to 4 inches to 3 inches.

The th yarn layer, the second yarn layer and the third yarn layer may be reciprocated at a ratio of 1: 2: 2.

The number of drum windings for forming the th, second, and third yarn layers may be 2.0W: 1.5W,

the width of the th, second, and third yarn layers was 4 inches to 3.8 inches to 3 inches.

A package manufacturing method according to another embodiment of the present invention is a method of manufacturing a package having a yarn wound around a winding body having no flange at both ends, and forms a yarn layer having an th portion and a second portion arranged in the longitudinal direction of the winding body with respect to the th portion and having a larger diameter than the th portion by alternately repeating the following two steps.

◎ on a winding body, and a step of winding a yarn layer on the winding body, and

◎ is wound around the second yarn layer in a range shorter than the yarn layer and overlapping the yarn layer in the longitudinal direction of the wound body.

In this package manufacturing method, a stepped package having th and second portions of yarn with different outer diameters is formed, and therefore, the number of yarn layers with which the yarn contacts during unwinding decreases.

Further, the th part and the th yarn layer and the second yarn layer constituting the second part of the yarn are alternately stacked, and therefore, winding of the yarn avoiding the dangerous zone of the lock yarn can be realized.

A yarn winding device according to another embodiment of the present invention includes a winding unit and a control unit that causes the winding unit to execute the package manufacturing method described above.

In this device, the aforementioned effects can be obtained.

The winding unit may include a rotation support unit, a yarn guide unit, and a lever member.

The winding body is mounted on the rotation support portion.

The yarn guide section is a member for guiding the yarn to the winding body, and has a traverse drum.

The lever member is movable between a non-restricting position at which the movable position of the yarn in the rotational axis direction of the traverse drum is not restricted, thereby supplying the yarn to the traverse drum with a swing width of , and a restricting position at which the movable position of the yarn in the rotational axis direction of the traverse drum is restricted, thereby supplying the yarn to the traverse drum with a narrow swing width.

The control unit performs the step of winding the th yarn layer by arranging the lever member at the non-restricting position, and performs the step of winding the second yarn layer by arranging the lever member at the restricting position.

Specifically, when the lever member is located at the non-restriction position, the yarn is guided to the traverse drum with a swing width of , when the lever member is located at the restriction position, the yarn is guided to the traverse drum with a narrow swing width, and when the lever member is located at the non-restriction position, the yarn passes through a different drum groove from that when the lever member is not restricted, whereby a yarn layer with a winding width of and a yarn layer with a narrow winding width can be formed, whereby a yarn layer with a narrow winding width and a yarn layer with a winding width of can be formed in 1 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 device, if the number of lever members is 2, 3 winding widths can be realized.

In the example, the th lever member and the second lever member are provided, for example, the th lever member is disposed between the original swing widths of the yarns, and the swing width of the yarn is shortened by restricting the movement of the yarn by steps at the restriction position, the second lever member is disposed between the original swing widths of the yarns, and the swing width of the yarn is shortened by steps by restricting the movement of the yarn by steps at the restriction position, that is, with respect to the swing width of the yarn, the single turn-back position becomes shorter in the order of the original position, the th lever member, and the second lever member.

Effects of the invention

In the package, the package manufacturing method, and the yarn winding device according to the present invention, unwinding property in the package is good and lock yarn can be suppressed.

Drawings

Fig. 1 is a schematic front view showing a yarn winding unit of an automatic winder according to an -th 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 a yarn winding operation in the th yarn winding operation.

Fig. 5 is a schematic front view showing the 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 structure of the automatic winder.

Fig. 9 is a flowchart for explaining the yarn winding operation.

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

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 a yarn winding operation at th.

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 a yarn winding operation at .

Fig. 17 is a slot development view of the traverse drum for illustrating the slot movement of the yarn in the th yarn winding operation.

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

Fig. 19 is a slot development view of the traverse drum for illustrating the slot movement of the yarn in the th yarn winding operation.

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

Fig. 21 is a schematic front view showing a yarn winding unit of an automatic winder according to a third embodiment.

Fig. 22 is a schematic side view of the traverse device.

Detailed Description

1. best mode for carrying out the invention

(1) Basic structure of automatic winder

An automatic winder 1 will be described with reference to fig. 1, and fig. 1 is a schematic front view showing a yarn winding unit of an automatic winder according to an -th embodiment.

The automatic winder 1 includes a yarn winding unit 2, the yarn winding unit 2 is an apparatus in which traverses a yarn 4 unwound from a yarn supply bobbin 3 by a traverse drum 5 and winds the yarn 4 around a winding bobbin 6( example of a winding body) to form a yarn layer, thereby forming a tapered package 7, and only 1 yarn winding unit 2 is illustrated in fig. 1, but actually, a plurality of such yarn winding units 2 are arranged in a machine body (not illustrated) to constitute the automatic winder 1.

The winding bobbin 6 is a winding body having no flange at both ends. The winding bobbin 6 is tapered, but may be cylindrical. And, there is no initial step in the winding bobbin 6.

The yarn feeding bobbin 3 is loaded on the tray, supplied to the yarn winding unit 2 by a conveyor (not shown), and output after the yarn winding operation.

An example of the yarn winding unit 2 as a winding section includes a cradle 8( example of a rotation support section) that supports a winding bobbin 6 so as to be detachable, and a yarn guide section 12 that guides the yarn 4 to the winding bobbin 6, and the yarn guide section 12 includes a traverse drum 5 that rotates at a predetermined rotational speed while coming into contact with the peripheral surface of the winding bobbin 6 or the peripheral surface of the package 7 at .

The cradle 8 holds and rotatably supports both ends of the winding bobbin 6. The cradle 8 is configured to be tiltable about the rotation shaft 10, and the winding thickness (increase in the yarn layer diameter) caused by the winding of the yarn 4 onto the winding bobbin 6 or the package 7 can be absorbed by the rotation of the cradle 8. The winding bobbin 6 or the package 7 is driven to rotate by rolling contact with the traverse drum 5.

The traverse drum 5 rotates the package 7 while traversing the yarn 4 on the surface of the package 7, the traverse drum 5 is rotationally driven by the package driving mechanism 41 (fig. 8), and 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, and the yarn 4 is wound on the surface of the winding bobbin 6 while being reciprocated (traversed) at a width of by the traverse groove 9, thereby forming a package 7.

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

The yarn 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 feeding bobbin 3 side in the yarn traveling path between the yarn feeding bobbin 3 and the traverse drum 5.

The yarn splicing device 14 is configured to splice a lower yarn 4L, which is the yarn 4 on the yarn feeding bobbin 3 side, and an upper yarn 4U, which is 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 feeding bobbin 3 is broken.

The clearer 15 is a member for detecting a thickness defect of the yarn 4, and detects a yarn defect such as a slub yarn by detecting the thickness of the yarn 4 passing through a portion of the detecting section of the clearer 15 with an appropriate sensor and analyzing a signal from the sensor with a resolver (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 feeding bobbin 3 side and guiding the same to the yarn splicing device 14; and an upper yarn suction/catching guide mechanism 20 for sucking and catching the upper yarn 4U on the package 7 side and guiding the same to the yarn splicing device 14.

The upper yarn suction/capture guide mechanism 20 is configured in a tubular shape and has a suction nozzle 22 at a distal end thereof, the upper yarn suction/capture guide mechanism 20 has a tube 20a extending from the suction nozzle 22 and a shaft 21 rotatably supporting the tube 20a, the tube 20a is connected to an air device (not shown) via a connecting tube (not shown), that is, a proximal end of the upper yarn suction/capture guide mechanism 20 is connected to a blower (not shown) via an air device (not shown).

The lower yarn suction catching guide mechanism 17 is also formed in a tubular shape, and has an air intake port 19 at a tip end thereof. The lower yarn suction catching guide mechanism 17 is composed of a relay pipe 17a provided to be vertically rotatable about a shaft 18, and a coupling pipe (not shown) 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 advancing yarn 4.

The cleaning tube 25 is a device for sucking and removing foreign matter adhering to the running yarn 4, and the proximal end of the cleaning tube 25 is connected to the blower via an air device (not shown), and a suction port is formed at the distal end of the cleaning tube 25, and the suction port of the cleaning tube 25 is close to the yarn 4 running between the waxing device 24 and the traverse drum 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 has a tapered shape with steps, and in this embodiment, has 3 stages, specifically, an -th stage 7A with the smallest diameter ( example of part ), a second stage 7B with an intermediate diameter ( example of part ), and a third stage 7C with the largest diameter.

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

In other words, the -th 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 that of the -th yarn layer 51 from the reference end P on the right side in the figure, and 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 in the figure.

When the yarn is unwound from the package 7, the third yarn layer 55, the second yarn layer 53, and the yarn layer 51 are repeatedly unwound in this order after the outermost yarn layer 51.

As described above, since the stepped configuration of the th and second segments 7A and 7B having yarns with different outer diameters is realized, it is difficult for the yarns to contact the yarn layer during unwinding, specifically, the yarns do not contact the th segment 7A during unwinding of the second segment 7B.

Further, the -th yarn layer 51 and the second yarn layer 53 constituting the -th and second segments 7A and 7B of the yarn are alternately laminated, and therefore, winding of the yarn avoiding the dangerous zone of the lock yarn can be realized.

The reason for this is that the th yarn layer 51 continuously covers the step of the second yarn layer 53 from the th section 7A to the second section 7B, the th yarn layer 51 continuously covers the step of the second yarn layer 53 from the second section 7B to the third section 7C, and the second yarn layer 53 continuously covers the step of the third yarn layer 55 from the second section 7B to the third section 7C.

(3) Yarn winding width adjusting device

The yarn winding unit 2 includes a yarn winding width adjusting device 61. The yarn winding width adjusting device 61 is a device for forming a yarn layer having a smaller width on the winding bobbin 6 than in the case of non-restriction by restricting the traverse of the traversed yarn 4 and passing the yarn 4 through a traverse groove 9 different from the conventional one.

The yarn winding width adjusting device 61 includes a lever member 62 as shown in fig. 2, the lever member 62 includes, as a plurality of lever members, an -th guide lever 63 and a second guide lever 65, the -th 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 -th guide lever 63 and the second guide lever 65 correspond to different positions in the rotational axis direction of the traverse drum 5, and specifically, are arranged in the order described above from the left side to the right side in the drawing.

The th guide lever 63 and the second guide lever 65 are movable between a restricting position and an unrestricted position, respectively, at the restricting position, the th 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 passing region, thereby guiding the yarn 4 toward the traverse drum 5 with a narrow swing width, at the unrestricted position, the th guide lever 63 and the second guide lever 65 are disengaged from the yarn swing passing region without restricting the movable position of the yarn 4 in the rotational axis direction of the traverse drum, thereby guiding the yarn 4 toward the traverse drum 5 with a wide swing width of , and at the restricting position and the unrestricted position, the th guide lever 63 and the second guide lever 65 guide the yarn 4 toward different traverse grooves 9 of the traverse drum 5 (described later).

In this embodiment, since the number of the guide bars is 2, 3 winding widths (described later) can be realized in the package 7.

The yarn winding width adjusting device 61 includes a traverse forming mechanism 43 (fig. 8) (described later) for controlling the operations of the -th guide lever 63 and the second guide lever 65.

The outline of the th to third yarn winding operations will be described with reference to fig. 4 to 6, fig. 4 is a schematic front view showing the th yarn winding operation, fig. 5 is a schematic front view showing the second yarn winding operation, and fig. 6 is a schematic front view showing the third yarn winding operation.

In the yarn winding operation of the th, since the first guide lever 63 and the second guide lever 65 are located at the non-restricting positions as shown in fig. 4, the yarn 4 is guided with a swing width of a maximum width with respect to the traverse drum 5 without being restricted, and thus the th yarn layer 51 is formed.

In the second yarn winding operation, as shown in fig. 5, only the -th guide lever 63 is located at the restricting position, and therefore, the yarn 4 is guided with a swing width of an intermediate degree with respect to the traverse drum 5, specifically, the yarn 4 is not swung leftward in the drawing (toward the small diameter side of the package 7) by steps by the -th guide lever 63, and as a result, 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 to be guided with the narrowest swing width with respect to the traverse drum 5, specifically, the yarn 4 is not swung leftward in the drawing (toward the smaller diameter side of the package 7) by the second guide lever 65 further , and as a result, the third yarn layer 55 is formed.

The groove shape of the traverse drum 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 traverse 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 and a traverse backward path 73. the traverse forward path 71 extends obliquely downward to the left in the drawing, and is shown as 3 grooves in the drawing, in other words, the traverse forward path 71 extends so as to widen the track of the yarn 4 toward the left side ( th side in the width direction) of the traverse drum 5 when the yarn 4 is guided by the groove, and specifically, in fig. 7, the traverse forward path 71 extends in the order of point a → point b → point c → point d.

The traverse path 73 extends diagonally downward to the right in the figure and is shown as 2 slots in the figure. In other words, the traverse path 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 when the yarn 4 is guided by the groove. Specifically, in fig. 7, the traverse path 73 extends in the order of point d → point e → point a.

The traverse forward path 71 and the traverse backward path 73 have th intersection 75 and th intersection 75 provided at a position around 2/3 from the right end of the drum width in fig. 7, and the second intersection 77 provided at a position around 1/3 from the right end of the drum width in fig. 7.

According to 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 return path 73, and is returned to the original position. The yarn 4 thus traversed by the traverse groove 9 is wound around the winding bobbin 6.

In the -th yarn winding operation described above, the width of the yarn 4 moving in the traverse groove 9 on the traverse drum 5 is the entire drum width (for example, 6 inches) indicated by the width a.

In the second yarn winding operation described above, the width of the traverse drum 5 within the traverse groove 9 within which the yarn 4 moves is between the right end of the traverse drum 5 in the figure indicated by the width B and the th intersection 75 (for example, 4 inches).

In the third yarn winding operation described above, 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 in the figure indicated by the width C and the second intersection 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 structure of the automatic winder. Fig. 9 is a flowchart for explaining the yarn winding operation.

The yarn winding unit 2 includes a unit control unit 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.), and the unit control section 50 performs various control operations by executing a program stored in the storage section (corresponding to in part or in whole of the storage area of the storage device).

The unit control unit 50 may be constituted by a processor of the unit , or may be constituted by a plurality of independent processors for performing the respective controls.

Part or all of of the functions of the elements of the cell control unit 50 may be realized as a program executable by a computer system constituting the cell control unit 50, and part of the functions of the elements of the control unit may be constituted by a conventional integrated circuit (Custom IC).

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

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

The th drive mechanism 45 is an actuator for moving the th guide rod 63 between the restricting position and the non-restricting position, and is, for example, a solenoid, and the th 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 is a sensor that outputs a signal every 1/60 revolutions of the traverse drum 5.

Although not shown, 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 are connected to the unit control unit 50.

(5) Yarn winding action

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

The control flow diagrams described below are merely examples, and each step can be omitted or replaced as necessary, and a plurality of steps may be executed simultaneously, or may be partially or entirely repeated.

The blocks of the control flow chart are not limited to the control operation of the unit , 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 commands from the control unit to the respective devices, and they are expressed by the respective steps of software and application programs.

First, the number of revolutions of the traverse drum that rotates during 1 traverse (the yarn reciprocates times between both ends of the drum groove) is the drum winding number, and therefore the number of revolutions of the drum required for 1 traverse (the drum reciprocates times) differs depending on the drum winding number, and therefore the number of signal input turns from the rotation sensor 59 also differs.

The relationship of the number of drum windings, drum rotational speed/TRV, and drum rotation signal input turns/TRV is, for example, as follows.

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

In summary, the number of windings of the drum (at which winding is performed) can be determined based on the state of the guide lever (the restricted position or the non-restricted position), and it can be determined based on this number of revolutions at which the drum is rotated to perform 1 traverse. In summary, the guide lever can be moved between the restricting position and the non-restricting position at an appropriate timing for each winding number.

Using fig. 9, the following were compared for 2.5W (6 inches): 2.0W (4 inches): 1.5W (3 inches) 2: 3: the formation of the package 7 of 4 (the number of reciprocations (the number of layers)) will be described.

In step S1, the yarn winding operation is performed, specifically, the unit control portion 50 sets the drum winding number to 2.5w by moving the th guide lever 63 and the second guide lever 65 to the non-restricting positions, and forms 2 yarn layers in this state, and further, after the drum rotation signal is input 150 × 2 to 300 times, the formation of the yarn layer 51 is finished.

In step S2, it is determined whether the package 7 is completed. If not, the process transitions to step S3. If so, the process ends.

Specifically, in step S3, the unit control unit 50 moves the th guide lever 63 to the restricting position to switch to the drum winding number of 2.0w, and forms 3 yarn layers in this state, and, after a drum rotation signal is input 120 × 3 ═ 360 times, ends the formation of the second yarn layer 53.

In step S4, the unit control unit 50 performs the third yarn winding operation, specifically, the unit control unit switches the drum winding number to 1.5w by moving the -th guide lever 63 to the non-restricting position and the second guide lever 65 to the restricting position, and further forms 4 yarn layers in this state, and further, when a drum rotation signal is input 90 × 4 to 360 times, the formation of the third yarn layer 55 is completed.

To sum up, the th yarn layer 51, the second yarn layer 53, and the third yarn layer 55 are repeatedly formed, and the th yarn layer 51 is finally formed, thereby completing the package 7.

The unit control unit 50 executes the above-described steps based on 1 of the plurality of preset winding mode information. Specifically, the unit control section 50 reads the winding mode information stored in the storage section automatically or in accordance with an operation from an operator, and performs control based on this. This simplifies the package manufacturing operation. Alternatively, the operator may input the winding mode to the unit control unit 50 every time.

In the package manufacturing method described above, the step of winding the -th yarn layer 51 around the winding bobbin 6, the step of winding the second yarn layer 53 so as to overlap the -th yarn layer 51 in a range shorter than the -th yarn layer 51 in the longitudinal direction of the winding bobbin 6, and the step of winding the third yarn layer 55 so as to overlap the second yarn layer 53 in a range shorter than the second yarn layer 53 in the longitudinal direction of the winding bobbin 6 are alternately repeated, and as a result, a yarn layer having a th segment 7A, a second segment 7B arranged in the longitudinal direction of the winding bobbin 6 with respect to the -th segment 7A and having a larger diameter than the -th segment 7A, and a third segment 7C having a larger diameter than the second segment 7B is formed.

Specifically, when the -th guide bar 63 and the second guide bar 65 are located at the non-restriction position, the yarn 4 is guided to the traverse drum 5 with the swing width of the width , when the -th guide bar 63 and the second guide bar 65 are located at the restriction position, the yarn 4 is guided to the traverse drum 5 with the narrow swing width, and the yarn 4 passing through the traverse groove 9 different from that in the case where the yarn is not restricted is wound around the winding bobbin 6 with the narrow winding width, and thus, for example, the -th yarn layer with the winding width of the wide and the second yarn layer with the narrow winding width can be formed, and as in the present embodiment, a package tape 597 with the package width of the narrow winding width and the wide winding width of the wide layer 25 can be obtained by combining the package tapes in 1 package.

The formation of each yarn layer in the yarn winding operation described above 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 -th yarn winding operation, the -th yarn layer 51 is formed on the entire surface of the winding bobbin 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 -th 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 th yarn winding operation, the th yarn layer 51 is formed on the th 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 -th 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 th yarn winding operation, the th yarn layer 51 is formed on the third yarn layer 55 (step S1 in fig. 9).

As described above, since the -th 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 portions is small and gentle, and therefore, the number of yarn layers can be increased and the weight of the package 7 can be increased.

In the above embodiment, the group of the th yarn layer 51, the second yarn layer 53, and the third yarn layer 55 is repeated 2 times, but may be 3 times or more.

In the above-described embodiment, the number of types of the yarn layers constituting the repeat group is 3, but may be 2 or 4 or more.

The groove movement of the yarn in each yarn 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 illustrating groove movement of the yarn in each yarn winding operation.

As shown in fig. 17, in the th yarn winding operation (step S1 in fig. 9), the yarn 4 moves in the traverse groove 9 of the traverse drum 5 in the following order of point a → point b → point c → point d → point e → point a, more specifically, since the th guide lever 63 is located at the non-restricted position, the yarn 4 moving along the traverse outward path 71 passes through the th cross point 75 and moves along the traverse outward path 71 as it is, and as a result, the th 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 in 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 in the following manner. Specifically, in fig. 7, the sequence is point a → branch point 79 → point e → junction point 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 in the following manner, in the order of point a → point b → point c → intersection 75 → point e → point a, more specifically, since the -th guide lever 63 is located at the restricting position, the yarn 4 moving along the traverse forward path 71 moves to the traverse backward path 73 at the intersection 75 and then moves along the traverse backward path 73, and as a result, the second yarn layer 53 is formed.

As shown in fig. 19, in the third yarn winding operation (step S4 of fig. 9), the yarn 4 moves in the traverse groove 9 of the traverse drum 5 in the following manner. Point a → point b → the second intersection point 77 → the order of point a. In more detail, since the second guide lever 65 is located at the restriction position, the yarn 4 moving along the traverse forward path 71 moves to the traverse backward path 73 at the second intersection 77 and then moves along the traverse backward path 73. As a result of the above, the third yarn layer 55 is formed.

In the above embodiment, the package having the winding width of 6 inches was 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, and examples thereof may be 2.0W (4 inches): 1.5W (3.8 inches):

1.5W (3 inches) ═ 1: 2: 2 (number of reciprocations (number of layers)). In this case, the lock line in the dangerous zone can 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.

The connector 83 is detachably attached to the support portion 8a on the side of the cradle 8, and the connector 83 supports the end of the winding bobbin 6, whereby the winding bobbins 6 having different lengths can be attached to the cradle 8.

The connector may be provided at the other support end of the cradle as a modified example, or may be provided at the support ends on both sides of the cradle.

3. Third embodiment

The yarn winding unit of the arm traverse system will be described with reference to fig. 21 and 22. Fig. 21 is a schematic front view showing a yarn winding unit of an automatic winder according to a third embodiment. Fig. 22 is a schematic side view of the traverse device.

The yarn winding unit 100 includes a yarn unwinding assisting device 112, a tension applying device 113, a splicing device 114, and a yarn monitoring device 115 in this order from the yarn feeding bobbin 121 side in a yarn running path between the yarn feeding bobbin 121 and the contact roller 129.

A yarn feeder 111 is provided below the yarn winding unit 100. The yarn feeding section 111 is configured to be able to hold a yarn feeding bobbin 121 conveyed by a bobbin conveying system, not shown, at a predetermined position.

The yarn unwinding assisting device 112 assists the unwinding of the yarn 120 from the yarn feeding bobbin 121 by lowering the regulating member 140 covering the core tube of the yarn feeding bobbin 121 in conjunction with the unwinding of the yarn 120 from the yarn feeding bobbin 121.

The tension applying device 113 applies a predetermined tension to the running yarn 120.

The splicing device 114 splices the lower yarn from the yarn feeding bobbin 121 and the upper yarn from the package 130 when the yarn monitoring device 115 detects a yarn defect and cuts the yarn, or when the yarn is broken during unwinding from the yarn feeding bobbin 121.

The yarn monitoring device 115 includes: a head 149 on which a sensor, not shown, for detecting the thickness of the yarn 120 is disposed; and a resolver (not shown) for processing a yarn thickness signal from the sensor. The yarn monitoring device 115 is configured to detect a yarn defect such as a slub yarn by monitoring a yarn thickness signal from the sensor. A cutter 139 for immediately cutting the yarn 120 when the yarn monitor 115 detects a yarn defect is provided near the head 149.

A lower yarn catching member 125 that catches the yarn end of the lower yarn and guides the yarn end to the splicing device 114 is provided below the splicing device 114. An upper yarn catching member 126 is provided above the splicing device 114 to catch the yarn end of the upper yarn and guide the yarn end to the splicing device 114. The lower yarn catching member 125 includes a lower yarn guide arm 133 and a lower yarn suction port 132 formed at the tip of the lower yarn guide arm 133. The upper yarn catching member 126 includes an upper yarn guide arm 136 and an upper yarn suction port 135 formed at the tip of the upper yarn guide arm 136.

The lower yarn bobbin arm 133 and the upper yarn bobbin arm 136 are configured to be rotatable about a shaft 134 and a shaft 137, respectively, a suitable negative pressure source is connected to the lower yarn bobbin arm 133 and the upper yarn bobbin arm 136, respectively, the lower yarn bobbin arm 133 is configured to generate suction flow to the lower yarn suction port 132 to be able to suck and catch a yarn end of a lower yarn, the upper yarn bobbin arm 136 is configured to generate suction flow to the upper yarn suction port 135 to be able to suck and catch a yarn end of an upper yarn, the lower yarn bobbin arm 133 and the upper yarn bobbin arm 136 are provided with wind (not shown) on their base end sides, respectively, the wind is opened and closed by a signal from the unit control unit 150, and thereby, stop and generation of the suction flow from the lower yarn suction port 132 and the upper yarn suction port 135 are controlled.

The yarn winding unit 100 includes: a cradle 123 for detachably supporting the winding bobbin 122; and a contact roller 129 which is rotatable in contact with the circumferential surface of the winding bobbin 122 or the circumferential surface of the package 130.

The yarn winding unit 100 includes an arm-type traverse device 170 for traversing the yarn 120 near the cradle 123, and can wind the yarn 120 into the package 130 while traversing the yarn 120 by the traverse device 170, a guide plate 128 is provided slightly upstream of the traverse location, the guide plate 128 guides the yarn 120 on the upstream side to the traverse location, a ceramic traverse fulcrum section 127 is provided further upstream of the guide plate 128, and the traverse device 170 traverses the yarn 120 with the traverse fulcrum section 127 as a fulcrum.

The cradle 123 is configured to be rotatable about the rotation shaft 148. The cradle 123 rotates to absorb an increase in the yarn layer diameter of the package 130 accompanying the winding of the yarn 120 onto the winding bobbin 122. The cradle 123 is provided with a rotation speed sensor 124 for measuring the rotation speed of the package 130.

A package driving motor 141 including a servo motor is attached to the cradle 123. The package driving motor 141 rotationally drives the winding bobbin 122 to wind the yarn 120 around the winding bobbin 122. The package driving motor 141 can be rotationally driven by normal rotation for rotating the package 130 (the winding bobbin 122) in the winding direction. The package driving motor 141 can be rotationally driven by reverse rotation for rotating the package 130 in a reverse winding direction opposite to the winding direction. The motor shaft of the package driving motor 141 is connected to the winding bobbin 122 so as not to rotate relative thereto when the winding bobbin 122 is supported by the cradle 123.

The operation of the package driving motor 141 is controlled by a package driving control unit (not shown). The package drive control unit (not shown) receives the operation signal from the unit control unit 150 and controls the operation and stop of the package drive motor 141.

As shown in fig. 22, the traverse device 170 includes a traverse drive motor 176, an output shaft 177, and a traverse arm 174.

The traverse driving motor 176 is a motor for driving the traverse arm 174, and is constituted by a servomotor or the like. The operation of the traverse driving motor 176 is controlled by a traverse control section (not shown).

The traverse control section (not shown) is configured by hardware or the like based on a dedicated microprocessor, and controls the operation and stop of the traverse drive motor 176 in response to a signal from the unit control section (not shown). As shown in fig. 22, the power of the traverse drive motor 176 is transmitted to the base end of the traverse arm 174 via the output shaft 177. The traverse arm 174 performs reciprocating rotational motion in the winding width direction of the package 130 by the forward and reverse rotation of the rotor of the traverse drive motor 176.

As shown in fig. 22, a guide 173 having a hook shape is formed at the tip of the traverse arm 174. The traverse arm 174 can guide the yarn 120 by the yarn guide 173. The traverse arm 174 reciprocates while the yarn 120 is guided by the yarn guide 173, thereby traversing the yarn 120.

In this embodiment, the traverse arm 174 controls the traverse driving motor 176 by a traverse control section (not shown) to traverse the yarn 120, and a stepped package 130 can be formed by this control operation, as in the embodiment.

4. 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.

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

In embodiment , the number of guide bars is 2, and 3 steps of a stepped package are manufactured, but the number of guide bars is not limited, and for example, the number of guide bars may be 1, and 2 steps of a stepped package may be manufactured, or the number of guide bars may be 3 or more.

In embodiment , the number of guide bars that are arranged at the restricting position 1 time is 1, but the number is not limited to this number and, for example, the number of guide bars that are moved to the restricting position 1 time may be 2.

The present invention can also be applied to a rotor spinning machine and an open-end spinning machine.

Industrial applicability

The present invention can be broadly applied to a package, a package manufacturing method, and a yarn winding device .

Description of the reference numerals

1: automatic winder

2: yarn winding unit

3: yarn supply tube

4: yarn

5: traverse drum

6: winding bobbin

7: package of paper

7A paragraph

7B: second section

7C: third stage

8: rocking frame

9: transverse groove

10: rotating shaft

11: tray

14: joint device

15: yarn cleaner

16: cutting device

17: lower yarn suction capturing guide mechanism

17 a: relay tube

19: air intake

20: upper yarn suction capturing guide mechanism

20 a: pipe

22: suction nozzle

24: waxing device

25: cleaning tube

41: package driving mechanism

43: traverse forming mechanism

th driving mechanism

47: second driving mechanism

50: unit control unit

51: th yarn layer

53: second yarn layer

55: third yarn layer

59: rotary sensor

61: yarn winding width adjusting device

63 the th guide rod

65: second guide rod

71: transverse movement forward path

73: traversing compound path

75: th intersection

77: second cross point