JP3965897B2 - Yarn winding method and apparatus thereof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method and an apparatus for winding a thread around a linear body so as to form a linear body formed by arranging thread-like interpositions on the outer periphery of an optical fiber with a predetermined outer diameter.
[0002]
[Prior art]
As shown in FIG. 3, the yarn winding device 50 forms a linear body 4 by arranging soft yarn interpositions (thread-shaped interpositions) 3 around a plurality of optical fibers 2. A thread 9 is wound around the outer periphery to shape the filament 4 to a predetermined outer diameter.
[0003]
The yarn winding device 50 includes a collective die 51 that continuously aggregates a plurality of optical fibers 2 and the yarn intervening 3, a flyer 52 that is provided on the downstream side of the collective die 51 so as to be rotatable around the linear member 4, It comprises a bobbin bobbin 54 rotatably provided on the flyer 52 via a bobbin shaft 53 parallel to the striate body 4. By rotating the flyer 52, the thread 9 is pulled out from the bobbin bobbin 54 to the striate body 4. It is designed to be wrapped around.
[0004]
Further, as shown in FIG. 4, there is also a yarn winding device 62 of a type in which a thread bobbin 61 is disposed on the center axis of the flyer 60. This thread winding device 62 is provided with a thread winding bobbin 61 provided on a rotatable flyer 60 via a hysteresis brake 63, and a thread fed from the thread winding bobbin 61 by rotating the thread winding bobbin 61 relative to the flyer 60. 9 is tensioned.
[0005]
As shown in FIG. 5, there is also a type of a yarn winding device 73 in which a bobbin 72 is integrally provided on a rotating shaft 71 of a flyer 70. The yarn winding device 73 brakes rotation of the yarn guide 74 in contact with the yarn guide 74 provided to be rotatable with respect to the rotary shaft 71 so as to guide the yarn 9 from the yarn winding bobbin 72. And a brake 75 for applying tension to the yarn 9 fed from the bobbin 72 by a yarn guide 74.
[0006]
[Problems to be solved by the invention]
Incidentally, the yarn winding device 50 shown in FIG. 3 is advantageous in that a plurality of the thread bobbins 54 can be attached or the thread bobbins 54 can be replaced without cutting the filament 4. When the weight of the bobbin bobbin 54 changes due to a change in the amount, or when the centrifugal force changes due to an increase or decrease in the rotational speed of the flyer 52, the yarn tension fluctuates and the outer diameter of the filament 4 is finished to be constant. was difficult.
[0007]
The thread winding device 62 shown in FIG. 4 is a system in which the thread tension is made uniform by controlling the electrical hysteresis brake 63 to control the change in the thread winding amount without the influence of centrifugal force. 61 and the bobbin shaft 64 that extends from the hysteresis brake 63 and supports the bobbin bobbin 61 has a high frictional resistance base, so that it is possible to control the winding tension of about several hundred grams. Was difficult.
[0008]
The yarn winding device 73 shown in FIG. 5 is configured to tension the yarn 9 with the yarn guide 74, and rotates the yarn guide 74 by the amount of the yarn 9 wound around the linear body 4 to remove the yarn from the bobbin 72. Since the yarn 9 is fed out, when the winding amount of the bobbin bobbin 72 decreases, the yarn guide 74 needs to be rotated more quickly with respect to the bobbin bobbin 72, and the tension of the yarn 9 increases and fluctuates. End up.
[0009]
In addition, it is difficult to stably apply a minute brake to the thread guide 74, and even if it is to be realized by an electric brake or the like, it becomes a large and complicated structure and is expensive. The same applies to the yarn winding devices 50 and 62 shown in FIGS. 3 and 4.
[0010]
As described above, in any method, since the soft yarn interposition 3 is finished to a predetermined outer diameter by the winding tension of the yarn 9, it is necessary to always wind the yarn 9 at a predetermined low tension. Furthermore, although it is necessary to reduce the fluctuation of the tension as much as possible, it is difficult to cope with it by reducing the winding rotation speed to several hundred rotations per minute to reduce the increase in tension and the factor of the fluctuation.
[0011]
Accordingly, an object of the present invention is to provide a yarn winding method and apparatus capable of solving the above-described problems and stably forming the filament to a predetermined outer diameter while winding the yarn around the filament at high speed. It is to provide.
[0012]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention provides a thread bobbin around the above-mentioned linear body on the downstream side of an assembly die for forming a linear body by continuously inserting optical fibers and thread-like interpositions. In a yarn winding method that is rotatably provided and winds a thread fed from the spool bobbin around the filament at a predetermined winding position on the downstream side of the bobbin, and forms the filament to a predetermined outer diameter. A non-rotating guide pipe is provided on the downstream side of the collecting die to hold the outer diameter of the linear body until just before the winding position, and the position downstream of the bobbin bobbin and upstream of the winding position And a guide body having an annular groove on the outer periphery and a winding ring loosely fitted in the groove is provided downstream of the rotation ring, immediately after the yarn winding position. The molding die for adjusting the outer diameter of the striatum provided, after forming the striatum to a predetermined outer diameter in the collection die, thereby quickly inserted within the guide pipe while maintaining the outer diameter above The yarn is fed to the position just before the winding position, and the rotating ring guides the yarn wound around the bobbin bobbin so as to be pulled out from the outer peripheral side of the bobbin bobbin, and is sandwiched between the winding ring and the groove, and the yarn is The wire is wound around the wire body, and immediately after the winding position, the wire is inserted into the forming die and narrowed down to a predetermined outer diameter.
[0013]
Further, the yarn winding device forms the assembly die so as to restrict the linear body to a predetermined outer diameter, and immediately inserts the linear body from the assembly die on the downstream side of the assembly die. A non-rotating guide pipe that holds the diameter until just before the winding position is provided, and the yarn wound around the spool bobbin is placed on the outer periphery of the spool bobbin at a position downstream of the spool bobbin and upstream of the winding position. A rotating ring that is rotatably attached to guide it so as to be pulled out from the side is provided, and is loosely fitted into the groove so as to sandwich the thread between the groove and a guide body having an annular groove on the outer periphery. A winding ring is provided downstream of the rotating ring, and a forming die for reducing the outer diameter by inserting a linear body from the guide pipe immediately after the winding position of the yarn is provided.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[0015]
As shown in FIG. 1, a yarn winding device 1 includes an assembly die 5 for forming a linear body 4 by assembling an optical fiber 2 and a yarn intervening (yarn-shaped intervening) 3 while continuously inserting them. The guide pipe 6 is provided on the downstream side of the collecting die 5 for holding the outer diameter by inserting the linear body 4 from the collecting die 5, and is provided concentrically and rotatably around the guide pipe 6. A hollow rotating shaft 7, a bobbin bobbin 8 provided concentrically on the outer periphery of the rotating shaft 7, and a yarn 9 that is rotatably provided on the outer periphery of the rotating shaft 7 via a sleeve 29 described later and is fed from the bobbin bobbin 8. A rotating ring 10 for guiding the shaft, a cylindrical guide body 12 provided coaxially at the downstream end of the rotating shaft 7 and having an annular groove 11 on the outer periphery in the vicinity of the downstream end, and a guide body Fits loosely into 12 grooves 11 A winding ring 13 and a forming die 14 provided close to the downstream end of the guide pipe 6 projecting downstream from the guide body 12 and for narrowing the outer diameter by inserting the linear body 4 from the guide pipe 6. It consists of.
[0016]
The collective die 5 has a die hole 15 through which the optical fiber 2 and the yarn interposed 3 are inserted. The die hole 15 is formed so as to restrict the filament 4 to a predetermined outer diameter.
[0017]
The guide pipe 6 is supported by a pipe holder 17 so that one opening 16 is brought close to the die hole 15 of the collecting die 5 and is not rotated. The pipe holder 17 is provided integrally with the stand 18. The inner diameter of the guide pipe 6 is formed so as not to increase the diameter of the linear body 4 when the linear body 4 is inserted into the guide pipe 6.
[0018]
The rotary shaft 7 is formed in a cylindrical shape, and is pivotally supported on a stand 18 via a bearing 19 on the upstream side. A guide pipe 6 is inserted into the rotary shaft 7, and the guide pipe 6 is extended from both ends.
[0019]
A passive pulley 21 for receiving a driving force from the driving motor 20 is integrally provided at the upstream end of the rotating shaft 7. The drive motor 20 is provided on the stand 18, and transmits a rotational driving force from a drive pulley 23 provided integrally with the drive shaft 22 to the passive pulley 21 via a belt 24. Further, the drive motor 20 is driven in synchronism with the linear velocity of the linear member 4 so that a necessary thread winding pitch is obtained by an electric control operation panel (not shown).
[0020]
The rotary shaft 7 is integrally provided with a flyer 25 for stabilizing the rotation of the bobbin bobbin 8. The flyer 25 includes a disk portion 26 that extends radially outward from the upstream side of the bobbin bobbin 8 and a cylindrical portion 27 that extends from the outer peripheral end of the disk portion 26 to the downstream side. It is designed to surround. At an intermediate position of the rotary shaft 7, a diameter expanding portion 28 for positioning the disk portion 26 of the flyer 25 and positioning the bobbin bobbin 8 is formed.
[0021]
The bobbin bobbin 8 rotates integrally with the rotary shaft 7 and is attached to the rotary shaft 7 via a key (not shown) so that it can be removed from the downstream side, and rotates the upstream end. Positioning is performed against the enlarged diameter portion 28 of the shaft 7. Similarly, a sleeve 29 is detachably attached to the rotary shaft 7 at a position downstream of the bobbin bobbin 8 so as to restrict movement of the bobbin bobbin 8 in the axial direction. .
[0022]
The rotating ring 10 is for guiding the yarn 9 wound around the bobbin bobbin 8 so as to be drawn out from the outer peripheral side of the bobbin bobbin 8, and is formed to have a sufficiently larger outer diameter than the bobbin bobbin 8. The rotary ring 10 is rotatably attached to the outer periphery of the sleeve 29 via a bearing 30 so as not to give a circumferential resistance to the yarn 9 drawn from the bobbin bobbin 8.
[0023]
The guide body 12 is formed to have a smaller diameter than the rotary shaft 7 so that the yarn 9 sent from the rotary ring 10 is sent to a predetermined winding position at a predetermined incident angle.
[0024]
The winding ring 13 is made of light plastic and is loosely fitted so as to freely rotate on the groove 11 of the guide body 12. Then, the winding ring 13 sandwiches the yarn 9 between the groove 11 and generates a slight contact friction with the yarn 9 while being moved by the yarn 9, thereby giving the yarn 9 a substantially constant low tension. It is supposed to be.
[0025]
The forming die 14 is provided on a die stand 31 via a cylindrical die holder 32. The die stand 31 has a support portion 33 that extends in a cylindrical shape toward the upstream side, and a die holder 32 is provided in the support portion 33 so as to be concentrically adjustable in the axial direction.
[0026]
The forming die 14 is provided so as to be concentrically embedded in the die holder 32 particularly at the position of the upstream end of the die holder 32. By adjusting the position of the die holder 32, the forming die 14 is placed at the position where the yarn 9 is wound. It is located immediately after.
[0027]
Further, a windshield cover 34 is attached to the support portion 33 of the die stand 31 to prevent turbulence from occurring in the air due to rotation of the flyer 25 or the like. The windshield cover 34 is formed so as to open in a trumpet shape from the outer periphery of the support portion 33 toward the upstream side and close to the passage of the yarn 9, and the outer periphery of the cylindrical portion 27 of the flyer 25 is formed on the windshield cover 34. A part is covered.
[0028]
The windshield cover 34 is provided so as to be movable in the axial direction with respect to the support portion 33, and escapes to the downstream side when the bobbin bobbin 8 is replaced to open a space between the windshield cover 34 and the flyer 25.
[0029]
Next, the operation will be described.
[0030]
The optical fiber 2 and the yarn intervening 3 are respectively run by the linear body 4 being pulled from the downstream side of the yarn winding device 1, inserted through the eye plate 35, and then inserted into the collecting die 5.
[0031]
The eye plate 35 has a plurality of optical fibers 2 inserted through the center and a plurality of yarn intervening 3 inserted around the optical fiber 2 and is rotated around the optical fiber 2. The yarn intervening 3 that has passed through the eye plate 35 is wound around the optical fiber 2 and arranged in the vicinity of the entrance of the collecting die 5.
[0032]
The plurality of optical fibers 2 and the yarn intervening 3 are formed in the linear body 4 by being narrowed to a predetermined outer diameter in the collecting die 5.
[0033]
The filament 4 sent from the assembly die 5 immediately enters the guide pipe 6. Since the guide pipe 6 is provided integrally with the stand 18 via the pipe holder 17, it does not rotate. The linear member 4 that has entered the guide pipe 6 always circumscribes the inner periphery of the guide pipe 6, and is sent downstream while the outer diameter is maintained by the guide pipe 6.
[0034]
On the other hand, the rotary shaft 7 is rotated around the guide pipe 6 by receiving the rotational driving force of the drive motor 20. The rotary shaft 7 rotates the flyer 25 provided on the rotary shaft 7, the bobbin bobbin 8, and the guide body 12 together.
[0035]
The yarn 9 extending from the bobbin bobbin 8 circulates around the outer peripheral side of the rotating ring 10, then circulates between the winding ring 13 and the groove 11, and forms a filament at the entrance of the forming die 14 that is close to the downstream end of the guide pipe 6. Since the bobbin 8 is wound around the body 4, the yarn 9 extending from the bobbin bobbin 8 is rotated together with the rotating ring 10 by the rotation of the bobbin bobbin 8, and is wound around the wire body 4 while rotating around the wire body 4.
[0036]
At this time, the yarn 9 is unwound from the bobbin 8 in the axial direction by the amount wound around the filament 4. The yarn 9 unwound from the bobbin 8 is sent between the winding ring 13 and the groove 11 of the guide body 12.
[0037]
Since the winding ring 13 is loosely fitted in the groove 11, the yarn 9 is slightly contacted with the winding ring 13 while being rotated along the inner periphery of the winding ring 13, thereby providing extremely low tension. Is done. Thereby, the thread | yarn 9 can always be stably wound around the filament 4 with a predetermined very low tension.
[0038]
Moreover, since the yarn 9 is wound around the filament 4 at a position near the downstream end of the guide pipe 6, the yarn 9 can be wound around the filament 4 before the diameter of the filament 4 is expanded, and can be set to a predetermined outer diameter. Even if there is a slight variation in tension in the yarn 9, the filament 4 can have a substantially constant outer diameter.
[0039]
The filament 4 around which the yarn 9 is wound at this winding position is quickly inserted into the forming die 14. The filament 4 is squeezed again to a predetermined diameter in the forming die 14, and the yarn 9 wound around the filament 4 generates a minute slack when the filament 4 is squeezed. It is returned to the upstream side of the forming die 14. For this reason, the filament 4 can be adjusted again to the predetermined outer diameter, and can be stably molded to the predetermined outer diameter.
[0040]
Further, since the outer peripheral side of the passage of the yarn 9 is covered with the windshield cover 34, the air flow is not disturbed by the rotation of the flyer 25 or the like, and the tension of the yarn 9 is prevented from fluctuating due to the air disturbance. be able to.
[0041]
As described above, the guide pipe 6 for holding the outer diameter of the filament body 4 is provided on the downstream side of the die, and the molding for adjusting the outer diameter of the filament body 4 immediately after the winding position of the yarn 9 is provided. A die 14 is provided, and the linear member 4 is formed to a predetermined outer diameter with the collective die 5, and then inserted into the guide pipe 6 and sent to the downstream side while maintaining the outer diameter. Immediately after the winding position, the forming die 14, the filaments 4 can be stably formed into a predetermined outer diameter even when the yarn 9 is wound around the filaments 4 at a high speed.
[0042]
Further, since the guide pipe 6 is extended to a position immediately before the winding position, the thread 9 can be wound before the diameter of the linear body 4 is expanded, and the linear body 4 can be easily wound even if the thread 9 is wound with extremely low tension. The filament 4 can be stably formed to have a predetermined outer diameter even if there is a slight variation in tension in the yarn 9.
[0043]
Since the bobbin 8 is rotated integrally with the rotary shaft 7 and the yarn 9 is naturally unwound from the bobbin 8 by centrifugal force or wind flow, the yarn 9 can be easily drawn out with extremely low tension. it can.
[0044]
In addition, a small-diameter guide body 12 is provided on the rotary shaft 7 so as to extend downstream, and the winding ring 13 is fitted on the groove 11 formed in the vicinity of the downstream end of the guide body 12, so that the vicinity of the winding position is obtained. Thus, a tension corresponding to a minute frictional resistance can be applied to the yarn 9, and fluctuations in tension can be suppressed as much as possible.
[0045]
In the above-described embodiment, the rotating ring 10 is rotatably attached to the outer periphery of the sleeve 29 via the bearing 30. However, the present invention is not limited to this, and the rotating ring 10 is integrally attached to the sleeve 29. Also good.
[0046]
In this case, since the product becomes defective at the beginning and end of the operation of starting and stopping the apparatus, it may be used for a line that still has no problem. Then, a lubricant (not shown) such as Teflon may be provided on the outer periphery of the rotating ring 10 to improve the sliding of the yarn 9.
[0047]
Further, the winding ring 13 and the guide body 12 may not be provided on the rotating shaft 7. In this case, as in the case described above, the product becomes defective at the beginning and the end of the work. Therefore, it may be used for a line that still has no problem. And, as shown in FIG. You may form so that a diameter may be narrowed toward the downstream. The yarn 9 can be unwound more easily, and it is possible to cope with several thousand revolutions per minute at a higher speed than in the above-described embodiment.
[0048]
【The invention's effect】
In short, according to the present invention, the following excellent effects can be obtained.
[0049]
(1) The wire can be stably formed into a predetermined outer diameter while winding the yarn around the wire at high speed.
[Brief description of the drawings]
FIG. 1 is a side view of a yarn winding device showing a preferred embodiment of the present invention.
FIG. 2 is a side view of a main part of a yarn winding device showing another embodiment.
FIG. 3 is a side view of a conventional yarn winding device.
FIG. 4 is a side view of a conventional yarn winding device.
FIG. 5 is a side view of a conventional yarn winding device.
[Explanation of symbols]
1 yarn winding device 2 optical fiber 3 yarn intervening (intervening)
4 Wire body 5 Collecting die 6 Guide pipe 8 Bobbin 9 Thread 14 Molding die

Claims (2)

A spool bobbin is provided on the downstream side of the assembly die for forming the filament by assembling the optical fiber and the thread-like interposition continuously while being inserted, and is disposed downstream of the spool bobbin. In a yarn winding method in which a thread fed from the bobbin bobbin is wound around the linear body at a predetermined winding position on the side, and the linear body is formed to a predetermined outer diameter, the linear member is disposed downstream of the assembly die. A non-rotating guide pipe is provided to hold the outer diameter of the body until just before the winding position, and a rotating ring is rotatably attached to a position downstream of the bobbin bobbin and upstream of the winding position. A guide body having an annular groove on the outer periphery and a winding ring loosely fitted in the groove are provided downstream of the rotating ring, and the outer diameter of the wire body is adjusted immediately after the winding position of the yarn. Completion A die provided, after forming the striatum to a predetermined outer diameter in the collection die, immediately sent until shortly before the winding position while maintaining the outer diameter is inserted into the guide pipe, by the rotating ring The thread wound around the bobbin is guided so as to be pulled out from the outer peripheral side of the thread bobbin, sandwiched between the winding ring and the groove, the thread is wound around the filament, and the winding position is Immediately thereafter, the yarn winding method is characterized by being inserted into the forming die and narrowed to a predetermined outer diameter. A spool bobbin is provided on the downstream side of the assembly die for forming the filament by assembling the optical fiber and the thread-like interposition while continuously inserting each other, and is provided downstream of the spool bobbin. In a yarn winding apparatus for winding the yarn fed from the bobbin bobbin around the filament body at a predetermined winding position, and forming the filament body to a predetermined outer diameter, the assembly die and the filament body are predetermined. And a guide pipe that does not rotate and holds the outer diameter immediately before the winding position by immediately inserting the filament from the collecting die on the downstream side of the collecting die. Mounted rotatably at a position downstream of the bobbin bobbin and upstream of the winding position for guiding the thread wound around the bobbin bobbin to be pulled out from the outer peripheral side of the bobbin bobbin. And a winding ring loosely fitted in the groove to sandwich the yarn between the guide body having an annular groove on the outer periphery and the groove is provided downstream of the rotation ring. A yarn winding device, wherein a forming die for reducing the outer diameter by inserting a linear body from the guide pipe immediately after a winding position is provided.

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