JPH07172701A - Strand winding device and winding method - Google Patents

Abstract

PURPOSE:To easily pull out a cake and also to enable an end yarn to be easily found by making tubes fitted around winders of a strand winding device of bleached kraft paper or polyethylene, and providing nozzles for injecting liquid toward the outer surfaces of the tubes, so as to press the end yarn of the strand against the outer surface. CONSTITUTION:Since a turret 42 of a winding device 41 is turned and a strand 51 is wound in the vicinity of the intermediate part of an empty collet (tube), cakes can be individually taken out without intersecting the outer cakes even when a plurality of cakes 57 are wound around one collet. The tubes 46 are made of bleached kraft paper or polyethylene, and nozzles 60, 61 for injecting water in order to press the end yarn of the strand 51 against the outer periphery are provided, thereby the winding is made accurate. There is no possible that the end yarns of spiral collects are cut by end yarn cutting blades 59 of the strand 51. The cake can be easily pulled out because there is no projecting part in the outer peripheral axial direction of the tube 46, and the cut-out is matched in an inner layer of the cake 57, the end can be easily found.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a strand winding device for winding a strand by a collet to form a cake (strand winding body), and a strand winding method using the same.

[0002]

2. Description of the Related Art Conventionally, for winding glass fiber, two glass fiber winding collets are prepared symmetrically with respect to the center of rotation of the turret, and when the first collet is fully wound,
A method is adopted in which the second collet is moved to the winding position and winding is performed.

After attaching a sizing agent to a glass filament drawn from a bushing having a large number of small holes,
Align them into strands. This strand is wound around a collet rotating at high speed to form a cake.

The collet is a winder fitted with a tube. The strand is guided to a traverse wire rotating at high speed and traversed, and the collet is rotated at a predetermined peripheral speed to wind the strand on a tube. After the collet has wound a predetermined amount of strand, the turret on which the collet is projected is rotated by 180 ° to move the collet to the standby position.

Instead, a new empty collet is moved to the winding position and the winding of the strand is continued.
For the collet where the strand is fully wound, stop the rotation of the collet, remove the cake together with the tube,
Instead, insert a new tube into the winder to prepare for the next winding.

The operation of replacing the full-filled collet with the empty collet may be referred to as a turret turn or simply a turn.

4 to 6 show an example of a conventional strand winding method. FIG. 4 is a perspective view of a main part of the strand winding device, FIG. 5 is a plan view thereof, and FIGS. 6 (a) to 6 (c) are front views showing the operation of the strand winding device.

In FIG. 4, FIG. 5 and FIG. 6 (a), the strand 17 is wound by the collet 11 located at the winding position to the right of the center of rotation of the turret 13. When the collet 11 is fully wound, the turret 13 is rotated to move the collet 11 to the left standby position and the left standby position as shown in FIGS. 6 (b) and 6 (c). Move the empty collet 12 in the right to the winding position.

While the turret 13 is being turned in this way, the strands 17 are wound around the waist rings 14 and 15 attached to the tips of the collets 11 and 12, respectively, so that the strands 17 are wound on the yarn guide bar 16.
Is shifted to the waist rings 14 and 15 side.
While the turret 13 is rotated 180 °, the strand 1
7 is rolled up.

The turret 13 is 18 as shown in FIG. 6 (c).
When the collet 12 is rotated at 0 ° and the collet 12 is placed in the regular winding position, the strand 17 is guided by the yarn guide bar 16 to the collet 1 of the strand 17.
The winding to 2 is started. A traverse wire 18 traverses the strand 17 with respect to the collet at the winding position (reciprocates in the axial direction of the collet).
It is for.

During this turn, the strand 17 is wound around the waist ring 15 of the empty collet 12 that has moved to the winding position, and the strand 17 is cut between the waist rings 14 and 15.

Then, the rotation of the fully wound collet 11 is stopped, and the cakes 19a and 19b are removed from the collet 11. In the winding method shown in FIGS. 4 to 6, two strands 17a and 17b are wound around one collet to wind two cakes 19a and 19b. That is, the cake 19b is formed by winding the back strand 17b, and the cake 19a is formed by winding the front strand 17a.

As another conventional example, Japanese Patent Laid-Open No. 4-34147
No. 0 publication, as shown in FIG.
A strand winding device 24 in which an auxiliary tool 23 is arranged between two is disclosed. This is the collet 21,2 on the turn
The turret 25 is rotated while 2 is being rotated, and then the tip end portion 26 of the winding auxiliary tool 23 is pushed between the collets 21 and 22.

The tip portion 26 of the auxiliary tool 23 is the collet 2
As it is pushed between the first and second collets 21,
The strand 27 bridged between the two is bent, the strand 27 contacts the outer periphery of the collet 22 by the angle θ in FIG. 7, and finally the strand 27 is cut by the applied tension.

The cut strand 27 is wound around the collet 22 as it is, and the turn is completed. The strand 27 is traversed by a traverse wire 28 and wound around the collet 22.

[0016] As yet another conventional example, Japanese Patent Laid-Open No. 4-35
Japanese Patent No. 4766 discloses a turret 3 as shown in FIG.
1 with a separator 32 protruding from the center of rotation,
A strand winding device 35 in which a pair of collets 33 and 34 are arranged is disclosed. The strand winding device 35
In FIG. 9, as shown in FIG.
A tube 37 provided with 6 is used.

In the turn of the strand winding device 35, the turret 31 is rotated to bridge the strand 38 between the collets 33 and 34, and then the strand 38 is attached to the tube 37 of the empty collet 34. It is captured by the capturing member 36. The captured strand 38 is wound around the collet 34, and the collets 33, 3
It is cut by the tension generated between the four. The cut strand 38 is further wound around the collet 34, and the turn ends.

[0018]

In the conventional example shown in FIGS. 4 to 6, since the cakes 19a and 19b are connected by strands, the cakes 19a and 19b cannot be removed one by one. was there.

The reason for this is as follows. That is, when the turret 13 is turned to turn the full-filled collet to the standby position, the two strands 17a and 17b
Each of them is wound around the waist rings 14 and 15, and after the empty collet moves to the standby position, the strand is shifted from the waist ring to the collet outer peripheral surface position,
Start winding with a collet. Therefore, the strand 17b on the back side is connected to the cake 19 from the waist ring 14.
It extends to the cake 19b through between a and the outer surface of the collet 11.

As a result, the cake 19a on the front side and the cake 19b on the back side are connected by one strand (so-called "crossover thread"), and both cakes 19a and 19b are collected at the same time by the collet 11. Need to be removed from.

In the conventional example in which the winding assisting tool 23 shown in FIG. 7 is used to make a turn, collets 21 and 22 are used.
There is a problem that the end yarn of the strand 27 that is cut in between may be wound around the second collet 22 and come into contact with the strand 27 that is being spun, resulting in yarn breakage.

In the strand winding method in which the trapping member 36 shown in FIG. 8 is used to make a turn, the trapping member 36 projects from the surface of the tube 37 by the thickness of the trapping member 36. It is necessary to catch the inner surface of the cake when the cake is taken out from the tube 37, and to completely float the inner surface of the cake from the trapping member 36 and remove it.
Therefore, it is difficult to extract the cake.

Further, in the method of FIG. 8, the capturing member 36 is
The parts other than the end thread of the strand 38 adhere to the
When the cake is taken out from the tube 37, the extra strands 38 other than the end yarns are peeled off from the inner peripheral surface of the cake. For this reason, the strands 38 that are regularly arranged on the inner peripheral surface of the cake are significantly disturbed, and it is difficult to perform end finding (finding the end yarn).

Therefore, in the conventional winding device and winding method for the strand, it is not possible to perform the turn completely and surely, and it is not possible to easily take out the cake and end find.

The strand winding device and winding method of the present invention solve the above-mentioned problems of the prior art, enable complete and reliable turn, and allow the cake to be extracted and end-fined easily. An object is to provide a winding device and a winding method.

[0026]

A strand winding device according to the present invention comprises a rotatable turret and at least a pair of collets symmetrically arranged with respect to the turret with a rotation center of the turret being sandwiched therebetween. Turret rotation device for rotating the turret when the collet is fully wound and switching to the other collet for winding, and the turret protruding from the turret so as to separate the collet from each other. In a strand winding device comprising a winder driven to rotate and a tube fitted to the winder, the tube is made of Sarashi Kraft paper or polyethylene. And a nozzle for ejecting a fluid toward the outer surface of the tube to press the end yarn of the strand against the outer surface of the tube. Is shall.

According to a second aspect of the present invention, there is provided the strand winding device according to the first aspect, wherein the separator is provided with a cutting blade for cutting a strand end yarn extending from the outer peripheral surface of the tube. is there.

A strand winding method according to a third aspect is a strand winding method using the glass fiber winding device according to the first or second aspect, wherein the turret is wound after one of the first collets is fully wound. When the second collet is rotated and moved to the winding position while rotating the other second collet, the rotational peripheral speed of the second collet located at the winding position is determined from the strand winding speed of the first collet. Keep it small,
After the second collet is located at the winding position, the rotation speed of the second collet is increased to a steady rotation speed.

A strand winding method according to a fourth aspect of the present invention is the method according to the third aspect, wherein when starting the winding of the strand by the second collet, a fluid is jetted from the nozzle toward the second collet, Is attached to the outer surface of the second collet.

[0030]

In the strand winding device of the present invention, the separator is arranged between the collets to prevent the cut end yarn from coming into contact with the strand being spun.

Further, since the fluid is jetted from the nozzle toward the outer surface of the tube forming the collet and the end yarn of the strand is pressed against the outer surface of the tube, the winding of the strand is ensured.

Further, since the tube is made of Sarashi kraft paper or polyethylene which has the property of easily winding the strand, the winding of the strand can be performed more reliably. It is not clear why strands tend to wind around Sarashi Kraft paper or polyethylene, but on tubes made of these materials, the strands coated with the binder (due to the nature of the liquid binder) It is presumed that this is because it is easy to stick to the surface.

In the strand winding device of the second aspect, the separator is provided with a cutting blade, and the end yarn extended from the collet is cut by touching the cutting blade when rotating with the collet.

In the strand winding method of the third aspect, when the turret is rotated after the first collet is fully wound, the strand winding speed by the first collet is set to the rotation of the second collet. Keep it higher than the lap speed. When the second collet approaches the original position of the first collet (winding operation position) as the turret rotates, the first collet moves to the first position.
The strand that is about to be wound around the collet
It contacts the peripheral surface of this second collet.

The peripheral speed of the second collet is lower than the traveling speed of the strand (the winding speed of the strand by the first collet) at this stage. Therefore, a large tension is applied to the strand between the second collet and the first collet, and the strand is cut during this. The strand on the downstream side (the first collet side) of the cut portion is wound around the first collet, and the strand on the upstream side is the second collet.
It is wound up in a collet.

After that, the rotation speed of the second collet is increased to the steady winding speed, and the steady winding operation is started.

In the strand winding method of the fourth aspect, a fluid is jetted from the nozzle toward the second collet, and the end yarn of the strand is pressed against the outer surface of the second collet by the pressure applied by the fluid. To be

[0038]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a strand winding device and winding method according to the present invention will be described below with reference to the drawings. First
FIG. 1 is a schematic front view of a strand winding device according to an example. FIG. 2 is a perspective view of a separator attached to the strand winding device of FIG.

Strand winding device 41 according to the present embodiment
Is composed of a turret 42 and a case 43 in which a rotating device for the turret 42 is housed. The turret 42 is provided so as to be rotatable (turnable) in the clockwise direction in FIG.

Winders 44, 45 are provided on the turret 42.
And a tube 46 is externally fitted to each winder 44, 45 to form collets 47, 48. The winders 44 and 45 are independently rotatable in the clockwise direction. The tube 46 is made of Sarashi Kraft paper or polyethylene.

A separator 49 having a substantially S-shaped cross section is provided between the collets 47 and 48. One side (vertical side) of the separator 49 is fixed to the turret 42 by a mounting member 50. Each collet 47,
As shown in FIG. 1, 48 are arranged on both left and right sides of the separator 49. The winding position 52 of the strand 51 by the collet is on the right-hand side of the figure than the separator 49.
The left side is the collet spinning standby position 53. Since the turret 42 rotates clockwise by 180 °, the collets 47 and 48 are alternately located at the winding position 52 and the spinning standby position 53.

The strand 51 is supplied to the collet at the winding position 52 from above. The strand 51 is supplied to the collet via a guide member 54 provided on the upper surface of the case 43 and a traverse wire 55. The traverse wire 55 is for traversing the strand 51 to the collet 47 or 48 rotating at the winding position 52.

When the turret 42 is rotated (turned) by 180 °, a strand 51 is stretched between the collet 47 and the collet 48. A concave groove 56 for allowing the strand 51 to escape is formed on the horizontal side of the separator 49 installed between the collets 47 and 48 at the same time as the cake 57 (wound body of the strand 51) formed on the collet.
It is provided only for a few minutes. A guide frame 58 made of a brass round bar is attached to the edge of the groove 56 so as not to damage the strands 51 even if they come into contact with each other.

On both sides of the separator 49, cutting blades 59 for cutting the end yarns of the strand 51 extending from the collets 47 and 48 are provided.

A nozzle 60 is provided on the outer periphery of the turret 42.
61 is provided. The nozzle 60 is a collet 47
Further, the nozzles 61 correspond to the collets 48, respectively, and each nozzle is capable of jetting water to the corresponding collet. When the turret 42 rotates and the collet 47 or the collet 48 is located at the mounting position 52, the water is jetted from the corresponding nozzle to the collet heading to the mounting position 52 for a predetermined time.

Strand winding device 4 configured in this way
The method for winding the strand in No. 1 will be described with reference to FIG. First, the two winders 44, 4 of the turret 42
The tube 46 is fitted into the member 5 to form collets 47 and 48, and the collet 47 at the winding position 52 is rotated clockwise.

Then, the strands 51 are drawn from above, passed through the guide member 54 and the traverse wire 55, and then wound around the collet 47 to start spinning. When the traverse wire 55 is activated, the strand 51 is obliquely wound around the collet 47, and the cake 57 is formed into a substantially cylindrical shape as shown in FIG.

After the predetermined amount of the strand 51 is wound around the collet 47, the traverse wire 55 is stopped,
Next, the traverse wire 55 is moved in the right-hand direction in FIG. 3 to separate the traverse wire 55 and the strand 51 from each other. Since the strand 51 is held by the guide member 54, the strand 51 is not
It is located in the vicinity of an intermediate position in the length direction of the cake 57 formed on 7.

While the traverse wire 55 is separated from the strand 51, the collet 48 at the spinning standby position 53 is rotated at a rotational speed lower than the normal winding rotational speed used for spinning. Then, as shown in FIG. 3B, the turret 42 is rotated clockwise. At this time, the collet 4 moving from the nozzle 61 to the winding position 52
Injection of water toward 8 is started.

The rotation of the turret 42 causes the collet 4 to move.
When 8 comes close to the strand winding position 52, the collet 4
8 contacts the strand 51. As described above, the collet 48 rotates at a rotation speed lower than the normal winding rotation speed. Therefore, a large tension is applied to the strand 51 bridged between the collet 47 and the collet 48 which rotate at the regular winding speed, and the strand 5
1 is cut midway between the collets 47 and 48.

Empty collet 4 of cut strands 51
The end thread portion on the 8 side is provided with a nozzle 61 for the collet 48.
The jet pressure of the water jetted from is pressed against the outer peripheral surface of the tube 46 of the collet 48. Therefore, as shown in FIG. 3 (c), the strand 51 is tightly wound around the collet 48 in the vicinity of the middle position of the cake making length.

The end yarn portion of the cut strand 51 on the full-roll collet 47 side is swung by the collet 47 which continues to rotate. However, it is blocked by the separator 49 provided between the collet 47 and the collet 48,
It does not contact the collet 48. Therefore, the strand 51 that is being wound around the collet 48 is not cut by the end yarn on the collet 47 side. The end yarn on the collet 47 side comes into contact with a cutting blade 59 provided on the separator 49 and is cut into short pieces.

The collet 48, which has completed the movement to the strand winding position 52, has its rotational speed increased to the normal winding rotational speed. The traverse wire 55 is also restarted, and the strand 51 is wound while being traversed by the collet 48.

After the rotation of the full-winding collet 47, which has been moved to the spinning standby position 53, is stopped, the tube 54 is replaced and the full-length collet 47 stands by in preparation for the next winding.

In the strand winding device of the present embodiment, the material of the tube 46 is Sarashi kraft paper or polyethylene, but in the case of spinning a strand for wet chop, a polyethylene tube is preferable. Admitted.

In addition, the strand 51 is provided on the edge of the groove 56 for releasing the strand 51 provided in the separator 49.
Although the guide frame 58 for protection is provided, instead of attaching the guide frame 58, the edge may be chamfered. The shape of the concave groove 56 is not limited to the substantially Y shape shown in the drawing,
It may have various shapes such as a substantially V shape and a substantially U shape.

In the strand winding device 41 of this embodiment and the winding method using the winding device 41, when the turret 42 is turned to move the empty collet (tube) to the winding position. The strands 51 to be wound up come into contact with the empty tube in the vicinity of substantially the middle in the longitudinal direction, and are wound around the middle of the empty tube. Therefore, even when a plurality of cakes 57 are wound around one collet, the strands 51 do not cross the winding area of the other cakes 57. (That is, the transition yarns are lost.) As a result, the cakes 57 become independent ones that are not connected to each other by strands (transition yarns), and the cakes 57 can be individually taken out. Further, as a result, the cake 57 can be automatically taken out by the automatic take-out device.

In the strand winding device 41 of this embodiment, the tube 46 forming the collets 47 and 48 is used.
Is made of Sarashi kraft paper or polyethylene, on which the strands 51 are easily wrapped. Further, the tube 46
Nozzle 60 for injecting water to press the end yarn of the strand 51 against the outer circumference of the tube 46 toward the outer circumference of
Since 61 is provided, the strand 51 is reliably wound around the tube 46.

Further, the separator 49 and the separator 4
End yarn cutting blade 59 of the strand 51 provided in
Thus, there is no risk that the end yarn of the full-filled collet will come into contact with the empty collet and the strand 51 that is being spun to cause yarn breakage, and the turn will be performed more reliably.

Further, since the capturing material is not used on the tube 46, there is no convex portion in the axial direction on the outer periphery of the tube 46, and the tube 46 can be easily removed from the cake 57. In addition, the strands 51 at the beginning of the cake winding are aligned in the inner layer of the cake 57 after the tube is pulled out, and the end finding is easy.

[0061]

According to the strand winding device of the present invention,
When the collet is replaced, the end yarn that has been torn off will not come into contact with the strand being spun and cause yarn breakage. Also,
Since the end yarn of the strand is pressed against the outer peripheral surface of the tube of the collet on the winding side by the fluid jetted from the nozzle, the winding of the strand around the collet is ensured. Furthermore, the strand is easily wound around the tube, and the winding of the strand becomes more reliable.

According to the strand winding device of claim 2,
The end yarn of the strand is reliably cut.

According to the strand winding method of claim 3,
It is ensured that the first collet is replaced with the second collet by the strand and the second collet is wound with the strand.

According to the strand winding method of claim 4,
The end yarn of the strand is pressed against the outer surface of the second collet to ensure the winding of the strand around the second collet.

[Brief description of drawings]

FIG. 1 is a schematic front view of a strand winding device according to the present invention.

FIG. 2 is a perspective view of a separator used in the strand winding device of FIG.

FIG. 3 is a schematic diagram for explaining the operation of the strand winding device.

FIG. 4 is a perspective view showing an example of a conventional strand winding device.

5 is a plan view of the strand winding device of FIG. 4. FIG.

FIG. 6 is a schematic diagram for explaining the operation of the strand winding device of FIG.

FIG. 7 is a schematic front view of a strand winding device disclosed in JP-A-4-341470.

FIG. 8 is a schematic front view of a strand winding device disclosed in JP-A-4-354766.

9 is a perspective view of a tube used in the strand winding device of FIG. 8. FIG.

[Explanation of symbols]

11, 12, 21, 22, 22, 33, 34, 47, 48 Collet 13, 25, 31, 42 Turret 17, 27, 38, 51 Strand 18, 28, 55 Traverse wire 23 Auxiliary device 24, 35, 41 Winding device 36 Capture Member 37, 46 Tube 44, 45 Winder 49 Separator 59 Cutting Blade 60, 61 Nozzle

Claims (4)

[Claims] 1. A rotatable turret, at least a pair of collets symmetrically arranged with respect to the turret with a center of rotation of the turret interposed therebetween, and the turret when one of the collets is fully wound. A turret rotating device for rotating and switching to the other collet for winding, and a plate-shaped separator protruding from the turret so as to separate the collets from each other, the collet comprising: Is a strand winding device provided with a winder that is rotationally driven and a tube fitted to the winder, wherein the tube is made of Sarashi Kraft paper or polyethylene, and a fluid is jetted toward the outer surface of the tube. A strand winding device is provided with a nozzle for pressing the end yarn of the strand against the outer surface of the tube. 2. The strand winding device according to claim 1, wherein the separator is provided with a cutting blade for cutting a strand end yarn extending from the outer peripheral surface of the tube. 3. A strand winding method using the glass fiber winding device according to claim 1 or 2, wherein the turret is rotated after the first collet on one side is fully wound, and the second turret on the other side is rotated. When the collet is moved to the winding position while rotating, the second
The circumferential speed of rotation of the second collet is set to be smaller than the winding speed of the strand by the first collet, and after the second collet is positioned at the winding position, the rotation speed of the second collet is steadily rotated. A method of winding a strand characterized by increasing the speed. 4. The method according to claim 3, wherein when the winding of the strand is started by the second collet, the fluid is jetted from the nozzle toward the second collet, and the end yarn of the strand is discharged by the second collet. A method for winding a strand, characterized in that it is attached to the outer surface of a collet.