JP3303850B2 - Spinning winder and bunch winding method thereof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spinning winder for switching a yarn from a full bobbin (package) to an empty bobbin to form a bunch winding on the empty bobbin, and a bunch winding method therefor.

[0002]

2. Description of the Related Art FIG. 12 shows a conventional spinning winder. The spinning winder 51 in FIG. 12 switches the two bobbin holders 54 and 55 to the winding position M and the standby position T by rotating the turret 53, so that the filament yarn Y1 ( (Synthetic fiber yarn) is wound around an empty bobbin B. When winding the yarn Y1, the contact roller 56 is pressed against the empty bobbin B of the bobbin holder 54 at the winding position M, and the yarn Y1 is traversed (traversed) by the traverse guide 56 of the traverse device 52. And wound up as a package P. In the spinning winder 51, when the full bobbin Bf is reached, the turret 53 is rotated to switch the full bobbin Bf to the standby position T and the empty bobbin B to the winding position M.
The yarn Y1 is switched from the full bobbin Bf to the empty bobbin B.

As shown in FIG. 13, the yarn switching operation is performed by removing the yarn Y1 from the traverse device 52 (traverse guide 57) with the yarn removal guide 58 and simultaneously with the yarn moving lever 59.
, The yarn Y is moved toward the bunch winding position (bunch winding slit) of the empty bobbin B. In this state, the yarn Y
1 is positioned on the yarn layer of the full bobbin Bf, and then the yarn Y1 is transferred from the full bobbin Bf to the empty bobbin B by transporting the yarn Y1 to the bunch winding slit of the empty bobbin B by the slide guide 61. And empty bobbin B and full bobbin B
The yarn Y1 is broken between the empty bobbin f and the bunch winding position of the empty bobbin B. After forming the bunch winding, the regulation of the yarn Y1 is released by retracting all the guides 58 to 61. Thus, the yarn Y1 returns to the traverse device 52 (traverse guide 57) again, and is wound around the empty bobbin B while being traversed.

[0004]

In the conventional take-up winder, the yarn Y1 is moved by the traverse device 5 in the yarn switching operation.
2 (traverse guide 57), the yarn is switched from full bobbin Bf to empty bobbin B to form a bunch winding. Accordingly, when the traversed yarn Y1 is detached from the traverse device 52, the yarn Y1 may be rubbed against the traverse guide 57 and may be damaged. Further, when the yarn Y1 is returned to the traverse guide 57, the yarn Y1 is damaged for the same reason. Damage to the yarn Y1 at the time of yarn switching lowers the quality of the package P.

An object of the present invention is to provide a spinning winder capable of forming a bunch winding by switching a yarn from a full bobbin to an empty bobbin without damaging the yarn, and a bunch winding method therefor.

[0006]

SUMMARY OF THE INVENTION A spinning winder and a bunch winding method according to the present invention are directed to a yarn which is engaged with the traverse device with a contact roller and an empty bobbin separated.
Engaging the bunch winding guide between the contact roller and the empty bobbin
The yarn is switched from the full bobbin to the empty bobbin to form a bunch winding on the empty bobbin by bringing the yarn into the bunch winding position outside the winding width of the empty bobbin by the bunch winding guide . That is, the spinning winder according to claim 1 and claim 3.
In the bunch winding method of the spinning winder, the yarn is wound around a full bobbin via a traverse device, a contact roller, and an empty bobbin. Subsequently, the contact roller and the empty bobbin are separated from each other, and the contact bobbin is engaged with the traverse device.
Engage the yarn with a bunch winding guide between them and move the yarn forward.
The bunch winding guide moves the bobbin outside the winding width. Then, switch the yarn from the full bobbin to the empty bobbin,
A bunch winding can be formed at the bunch winding position of the empty bobbin.

According to the second aspect of the present invention, the yarn between the empty bobbin and the full bobbin is positioned on the yarn layer of the full bobbin by the yarn guide. That is, a yarn guide is advanced from between an empty bobbin and a full bobbin to capture a traversed yarn and position the yarn on a yarn layer having a winding width (traverse width) of the full bobbin. It is.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A spinning winder and a bunch winding method of the present invention will be described. In the present invention, the yarn is switched from the full bobbin to the empty bobbin by shifting the yarn from the full bobbin to the empty bobbin by moving the yarn between the contact roller and the empty bobbin to a bunch winding position outside the winding width of the empty bobbin with the contact roller and the empty bobbin separated. A bunch is formed on the bobbin.

The spinning winder and the bunch winding method of the present invention will be described with reference to the drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As one embodiment of the present invention, a stretch winder and a bunch winding method for a stretchable elastic yarn will be described with reference to FIGS.

The spinning winder 1 shown in FIGS. 1 and 2 includes a turret 3, two bobbin holders 4, 5, a contact roller 6, and a traverse device 7, and is supplied from a spinning machine (not shown) via a godet roller. The elastic yarn Y (hereinafter, referred to as “yarn Y”) is wound around the empty bobbin B to form the package P. Further, the spinning winder 1 includes a yarn layer holding yarn guide 8 and a bunch winding guide 9, and switches the yarn Y from the full bobbin Bf to the empty bobbin B to form a bunch winding on the empty bobbin B. The bobbin is expressed as Bf for a full bobbin wound as a package P and B for an empty bobbin.

The turret 3 of the spinning winder 1 is also used as a means for separating the contact roller 6 and the empty bobbin B, and is supported by a turret shaft 10 of the machine frame 2. The rotation of the turret 3 is controlled by a drive source (not shown) connected to the turret shaft 10. Each of the bobbin holders 4 and 5 is pivotally supported (cantilevered) on a turret 3 to form an airframe 2
It is provided so as to protrude from. In addition, each bobbin holder 4,
5 is equipped with an empty bobbin B for winding the yarn Y as a package P, and is rotationally driven by a driving source (not shown). Each of the bobbin holders 4 and 5 is switched from the winding position M to the standby position T or from the standby position T to the winding position M by rotation of the turret 3. The bobbin holders 4 and 5 are also switched to yarn switching positions K1 and K2 located between the winding position M and the standby position T as shown in FIG. A plurality of empty bobbins B are normally mounted on each of the bobbin holders 4 and 5, but in the attached drawings, only one bobbin B is disposed at the winding position M and the standby position T, respectively.

The contact roller 6 of the spinning winder 1 is provided in a lifting box 11 which is raised and lowered above a winding position M. The contact roller 6 includes a lifting box 11
Package P (or empty bobbin B) at winding position M
To guide the yarn Y from the supply side to the package P (or the empty bobbin B). The contact roller 6 is positively driven by a drive source (not shown). The traverse device 7 is located on the supply side of the contact roller 6 and is provided in the lifting box 11. The traverse device 7 includes a traverse guide 12 that engages with the yarn Y and traverses (traverses) the yarn Y. The traverse guide 12 includes a thread groove 13 for catching the thread Y as shown in FIG. 2, and is provided corresponding to the number of packages P (empty bobbins B) at the winding position M. Thus, the traverse device 7 catches the yarn Y in the yarn groove 13 and strokes the traverse guide 12 with the traverse width S (reciprocating motion).
This causes the yarn Y to traverse from the contact roller 6 toward the winding position M (see FIG. 2).

The yarn layer holding yarn guide 8 of the spinning winder 1 is
It is provided at a yarn switching position K counterclockwise from the winding position M. The thread guide 8 extends toward the turret 3 along each of the bobbin holders 4 and 5, and is supported by a guide shaft 18 of the body frame 2. The thread guide 8 is turned (swinged) around the guide shaft 18 by a drive source (not shown). The bunch winding guide 9 of the spinning winder 1 is attached to the tip of the yarn layer holding yarn guide 8 and is rotated together with the yarn layer holding yarn guide 8. The bunch winding guide 9 slides in the axial direction of the bobbin holders 4 and 5.

The yarn layer holding yarn guide 8 and the bunch winding guide 9 are connected to the bobbin holders 4 and 5 as shown in FIGS.
Is positioned at the yarn switching positions K1 and K2, the yarn Y is switched from the full bobbin Bf (package P) to the empty bobbin B, and a bunch winding is formed on the empty bobbin B. 3 and 4
Rotates the turret 3 counterclockwise to move the empty bobbin B at the standby position T from the winding position M to the contact roller 6.
And the full bobbin Bf (package P) and the contact roller 6 and the empty bobbin B are separated. or,
The thread Y from the traverse device 7 is
This is a state where the bobbin B is wound around the full bobbin Bf via the empty bobbin B.
Of course, the contact roller 6 and each bobbin holder 4, 5
Are rotationally driven.

In this state, the yarn layer holding yarn guide 8 is swung around the guide shaft 18 and pressed against the yarn Ya between the empty bobbin B and the full bobbin Bf. The yarn Ya is captured in the guide groove 19. The guide grooves 19 are provided corresponding to the number of the empty bobbins B of the bobbin holder 5, and position the yarn Ya at the center of the winding width of the full bobbin Bf. Further, the yarn layer holding yarn guide 8 is wound around the empty bobbin B by turning around the empty bobbin B so as to contact (adhere) the outer periphery of the empty bobbin B while extending the yarn Ya. Thus, the yarn Ya is wound by the yarn guide 8 at the center of the winding width of the full bobbin Bf (on the yarn layer), and the empty bobbin B
And is cut by stretching [Figs. 3 and 4]
reference〕.

The bunch winding guide 9 includes a contact roller 6
And between the contact bobbin B and the yarn Yb between the contact roller 6 and the empty bobbin B, and regulates the yarn Yb by moving it to the bunch winding position R of the empty bobbin B. The bunch winding position R is
One end of the empty bobbin B, which is a position outside the traverse width (winding width) S of the traverse guide 12. With this, the yarn Yb is emptied by the bobbin winding guide 9 into the empty bobbin B.
(See FIGS. 3 and 4). The yarn Y regulated by the bunch winding guide 9 is
By cutting the yarn Ya between the empty bobbin B and the full bobbin Bf, the yarn is bunched to the bunch winding position R of the empty bobbin B.
The bunch winding guides 8 are provided corresponding to the number of the empty bobbins 5 of the bobbin holders 4 and 6, and each yarn Yb is attached to each of the empty bobbins B.
To the bunch winding position R.

As described above, the yarn layer holding yarn guide 8 and the bunch winding guide 9 cooperate to form the yarns Ya and Yb into the full bobbin B.
By controlling (positioning) with respect to f and the empty bobbin B, the yarn Y from the traverse device 7 is switched from the full bobbin Bf to the empty bobbin B, and a bunch winding is formed on the empty bobbin B. . Further, by causing the bunch winding guide 9 to enter from the same direction as the traverse direction, the yarn Y is not removed from the traverse device 7 (traverse guide 12).
The yarn Yb can be restricted to the bunch winding position R of the empty bobbin B.

Next, a bunch winding method of the spinning winder will be described.

The take-up winding machine 1 starts the winding operation by driving the contact roller 6, pressing the bobbin holder 4 at the winding position M against the contact roller 6, and driving the traverse device 7. In the winding operation, the yarn Y is traversed by the stroke of the traverse guide 12 (traverse).
Then, the winding package P is formed on the empty bobbin B at the winding position M while being guided by the contact roller 6 [FIG.
(A)].

When the package P at the winding position M is fully wound, the turret 3 is rotated counterclockwise to pass the empty bobbin B at the standby position T through the winding position M to the yarn switching position K1. The full bobbin Bf at the winding position M is switched to the yarn switching position K2 through the standby position T. At this time, the bobbin holders 4 and 5 are driven to rotate at a rotation speed corresponding to the yarn speed. Thus, the empty bobbin B is pressed against the yarn Y and is separated from the contact roller 6. Further, the yarn Y is wound on the full package Bf via the contact roller 6 and the empty bobbin B while being traversed while being engaged with the traverse device 7 [FIG.
(B) and (c)].

When the empty bobbin B and the full bobbin Bf are at the yarn switching positions K1 and K2, the yarn winding machine 1 starts the yarn switching operation. In the yarn switching operation, the yarn guide 8 for holding the yarn layer is
By turning, the yarn is pressed against the yarn Ya between the empty bobbin B and the full bobbin Bf (package P). At this time, the yarn Ya
Is captured in the guide groove 19 during the traverse process, and is positioned at the center of the winding width of the full bobbin Bf (see FIG. 6).

Subsequently, the bunch winding guide 9 is advanced between the contact roller 6 and the empty bobbin B, whereby the yarn Yb therebetween is moved to the bunch winding position R of the empty bobbin B and regulated. At this time, since the yarn Yb is regulated from the same direction as the traverse direction, it does not come off from the traverse device 7 (traverse guide 12) (see FIG. 7). Thus, the guides 8 and 9 regulate the yarns Ya and Yb with respect to the empty bobbin B and the full bobbin Bf, thereby switching the yarn from the full bobbin Bf to the empty bobbin B, and changing the yarn to the empty bobbin B. It is possible to form a bunch winding. Further, the yarn layer holding yarn guide 8 prevents the yarn Ya from deviating from the winding width (traverse width S) of the full bobbin Bf, and forms a bar winding on the yarn layer of the full bobbin Bf. .

Subsequently, the yarn layer holding yarn guide 8 is wound around the empty bobbin B while further extending the yarn Ya by further turning (see FIG. 8). In this state, the yarn Ya wound around the empty bobbin B is cut by the action of tension, whereby the yarn switching from the full bobbin Bf to the empty bobbin B is completed.

The yarn Yb regulated by the bunch winding guide 9 by cutting the yarn Ya in the yarn switching operation is wound around the bunch winding position R of the empty bobbin B to form a bunch winding (see FIG. 9). When the bunch winding is formed, each guide 8, 9
Is retracted from the bobbin holders 4 and 5 and the contact roller 6, and then the turret 3 is rotated clockwise to switch the empty bobbin B to the winding position M and the full bobbin Bf (package P) to the standby position T. [See FIG. 5 (b)]. With this, the regulation of the guides 8 and 9 is released, and the yarn Y is wound up as a package P on the empty bobbin B at the winding position M while being traversed again. Also, the standby position T
, The full bobbin B (package P) can be taken out of the bobbin holder 4.

In the spinning winder and the bunch winding method according to the present invention, the bunch winding guide 9 engages with the yarn Yb between the contact roller 6 and the empty bobbin B to move the yarn Yb out of the traverse width. Since the bobbin is moved to the bunch winding position R, the traverse device 7 (traverse guide 1) is used.
The yarn switching from the full bobbin Bf to the empty bobbin B can be executed without removing the yarn Y from 2), and a bunch winding can be formed at the bunch winding position R of the empty bobbin B. Therefore, it is possible to obtain a high-quality package P without damaging the yarn Y by removing and returning the yarn Y to the traverse device 7 (traverse guide 12). Further, since there is no removal and return of the yarn Y to the traverse device 7, the success rate of the yarn switching from the full bobbin Bf to the empty bobbin B can be increased. Furthermore, since the bunch winding guide 9 near the empty bobbin B forms a bunch winding with respect to the bunch winding position R of the empty bobbin B, a regular and beautiful bunch winding can be formed. In addition, in the case of winding the elastic yarn, since the yarn is guided directly to the traverse device 7 from the godet roller, it is difficult to return to the traverse device 7 when the yarn Y is removed from the traverse device 7. There is no problem.

In the spinning winder 1 and the bunch winding method thereof, a description has been given of the case where the bobbin is wound at the center of the winding width of the full bobbin Bf. It can be anywhere. Further, the traverse device 7 is not limited to a device for moving the traverse guide 12 in a stroke (reciprocating motion), and may be a device for traversing (traversing) the yarn Y by rotating, for example, two traverse blades.

Next, a modified example of the spinning winder, which is not limited to an elastic yarn but is suitable for a filament yarn (synthetic fiber yarn) such as polyester, will be described with reference to FIGS. . In FIGS. 10 and 11, the same reference numerals as those in FIGS. 1 to 9 denote the same members, and a description thereof will be omitted.

10 and 11, when the filament yarn Y1 (hereinafter referred to as "yarn Y1") is switched from the full bobbin Bf to the empty bobbin B, the empty bobbin B is moved to the winding position M. Then, the full bobbin Bf is switched to the standby position T. Then, the contact roller 6 is lifted by the lifting box 11 to separate the contact roller 6 from the empty bobbin B.

The spinning winder 31 has a bunch winding guide 9 similar to that shown in FIGS. 1 to 9 which can be moved forward and backward so as to engage with the yarn Y1b between the contact roller 6 and the empty bobbin B. The contact roller 6 is provided by the bunch winding guide 9.
The yarn Y1b between the bobbin B and the empty bobbin B is moved to the bunch winding position R (bunch winding slit 34) outside the traverse width of the empty bobbin B and regulated. Further, the yarn winding machine 31 has a fixed yarn guide 32 for holding the yarn layer between the empty bobbin B and the full bobbin Bf, and a slide guide 33 (yarn guide yarn guide).
And

In the yarn switching operation by the yarn winding machine 31, the empty bobbin B is switched to the winding position M and the full bobbin Bf is switched to the standby position T. Subsequently, the contact roller 6 is lifted by the lifting box 11 to be separated from the empty bobbin B. In this state, the bunch winding guide 9 is advanced between the contact roller 6 and the empty bobbin B, and the yarn Y1b
To a position outside the traverse width of the empty bobbin B. At this time, the yarn Y1b remains engaged with the traverse device 7 (traverse guide 12). Next, the fixed yarn guide 32 and the slide guide 33 are advanced between the empty bobbin B and the full bobbin Bf. Then, the yarn Y1b is moved to the bunch winding position R of the empty bobbin B by the bunch winding guide 9. The yarn 1a is regulated by the fixed yarn guide 32. Also at this time, the yarn Y is transferred to the traverse device 7 (traverse guide 1).
The thread Y is not removed from 2). Thus, the yarn Y1 from the traverse device 7 is rod-wound on the yarn layer of the full bobbin Bf via the contact roller 6 and the empty bobbin B.

Next, the yarn Y is guided to the bunch winding slit 34 by sliding with the slide guide 33. When the yarns Y1a and Y1b are regulated by the guides 8, 32 and 33 in this manner, for example, by rotating the bobbin holder 5 of the empty bobbin B, tension is applied to the yarn Y1a in the bunch winding slit 34, The thread is cut, and the thread switching is completed. Thus, the yarn Y1 from the traverse device 7 is wound around the bunch winding position R of the empty bobbin B to form a bunch winding. After retreating the guides 8, 32, and 33 from the bobbin holders 4, 5, and the contact roller 6, the contact roller 6 is again pressed against the empty bobbin B (the bobbin holder 5) at the winding position M to be traversed. The yarn Y1 can be wound around the empty bobbin B. Further, at the standby position T, the full bobbin Bf (package P) can be taken out.

[0032]

According to the bunch winding method of the spinning winder of claim 1 and the spinning winder of claim 3, the yarn is switched from the full bobbin to the empty bobbin without removing the yarn from the traverse device. Since a bunch winding can be formed on the empty bobbin, a high-quality package can be obtained without damaging the yarn by removing and returning the yarn to the traverse device.
Further, since there is no removal and return of the yarn to the traverse device, it is possible to increase the success rate of the yarn switching from the full bobbin to the empty bobbin. Further, the bunch winding can be formed on the empty bobbin by the bunch winding guide near the empty bobbin, so that a regular and beautiful bunch winding can be achieved.

In the spinning winder of the first aspect, a simple structure can be achieved by omitting the yarn removing guide for the traverse device. In the spinning winder according to the second aspect, since the yarn between the empty bobbin and the full bobbin is positioned on the yarn layer of the full bobbin by the yarn guide, the yarn is removed from the winding width of the full bobbin. The bunch winding can be formed by switching the yarn without the need. And
On the full bobbin, the winding end end of the yarn can be rod-wound.

[Brief description of the drawings]

FIG. 1 is a front view showing a spinning winder.

FIG. 2 is a perspective view of a main part of the spinning winder of FIG.

FIG. 3 is a perspective view showing a yarn guide and a bunch winding guide in the spinning winder of FIG. 1;

FIG. 4 is a view as viewed in the direction of arrows AA in FIG. 3;

FIG. 5 is a schematic view for explaining a bunch winding method of the spinning winder.

FIG. 6 is a schematic diagram for explaining a bunch winding method of the spinning winder.

FIG. 7 is a schematic diagram for explaining a bunch winding method of the spinning winder.

FIG. 8 is a schematic diagram for explaining a bunch winding method of the spinning winder.

FIG. 9 is a schematic diagram for explaining a bunch winding method of the spinning winder.

FIG. 10 is a front view showing a modified example of the spinning winder.

FIG. 11 is a top view showing a modification of the spinning winder of FIG. 11;

FIG. 12 is a front view showing a conventional spinning winder.

FIG. 13 is a top view showing a conventional spinning winder.

[Explanation of symbols]

 1, 31 Spinning winder 3 Turret 6 Contact roller 7 Traverse device 8 Thread guide 9 Bunch winding guide B Empty bobbin Bf Full bobbin P Package Y, Ya, Yb Elastic yarn Y1, Y1a, Y1b Synthetic fiber yarn (filament yarn)

Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B65H 54/34 B65H 67/048

Claims (3)

(57) [Claims] After the yarn is wound on a full bobbin via a traverse device, a contact roller and an empty bobbin,
Switching yarn from full bobbin to empty bobbin and winding up empty bobbin
What is claimed is: 1. A yarn winding machine for forming a bunch winding outside a width , comprising: means for separating the contact roller and an empty bobbin during the yarn switching; and a yarn engaged with the traverse device.
The contact roller engages between the empty bobbin, take-up winder comprising includes a bunch winding guide, the to gather the yarn <br/> the bunch winding position of the winding outside the width of the empty bobbin. 2. The take-up winder according to claim 1, further comprising a yarn guide for positioning the yarn between the empty bobbin and the full bobbin on a yarn layer of the full bobbin. 3. After the yarn is wound on a full bobbin via a traverse device, a contact roller, and an empty bobbin,
Switching yarn from full bobbin to empty bobbin and winding up empty bobbin
A bunch winding method for a spinning winder that forms a bunch winding outside a width , wherein the contact roller and the empty bobbin are separated from each other and engaged with the traverse device during the yarn switching .
Bunch Makiga the yarn state between the contact roller and the empty bobbin
Id engaged with the, preferred not to bunch winding position of the winding outside the width of the front <br/> Kisora bobbin by the bunch winding guide yarn, the yarn switching
A bunch winding method for a spinning winder , wherein a bunch winding is formed on the empty bobbin after replacement .