JP2006328553A - Device for producing core yarn - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem such that a CSY (core spandex yarn)-producing device and CFY (core filament yarn)-producing device become exclusive devices each other and have poor general purpose property. <P>SOLUTION: This core yarn-producing device equipped with a drafting device 100 for drafting the sheath fiber 9 of the core yarn and a core fiber-feeding device 1 for feeding a core fiber of the core yarn is provided with that the core fiber-feeding device 1 is at the upper directional position of the drafting device 100, the delivering passage of the core fiber in the core fiber-feeding device 1 is constituted so as to become a low front end and a high rear end with respect to the front surface side of a machine stand, and also a delivering device 2 for the CSY for supporting a package 3 for the CSY and delivering an elastic yarn 4, and a guide 12 for the CFY for guiding a filament yarn 14 delivered from a package 13 for the CFY, arranged at the rear direction of the core fiber-feeding device 1, at the rear upper part of the base frame 10 of the core fiber-feeding device 1 are installed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a technology of a core yarn manufacturing apparatus including a draft device that drafts sheath fibers of a core yarn, and a core fiber supply device that supplies core fibers of the core yarn.

Conventionally, there have been two types of core yarn manufacturing apparatuses for each type of core fiber. An automatic device for producing CSY (core spandex (registered trademark) yarn) using core fiber as an elastic yarn, and an automatic device for producing CFY (core filament yarn) using core fiber as a filament yarn. .
Patent Document 1 discloses an example of a CSY manufacturing apparatus. Patent Document 2 discloses an example of a CFY manufacturing apparatus.
JP 2002-363831 A JP 2002-69760 A

The CSY manufacturing apparatus and the CFY manufacturing apparatus are dedicated apparatuses in the following points, and versatility is impaired.
The first point is that the CSY manufacturing apparatus and the CFY manufacturing apparatus differ in the configuration of the yarn discharging apparatus that unwinds and sends the core fiber from the package. The CSY manufacturing apparatus is provided with a friction roller type yarn take-out device, which can appropriately unwind the elastic yarn, which is an elastic yarn. On the other hand, in the CFY manufacturing apparatus, only the filament yarn is pulled out from the package. For this reason, the elastic yarn cannot be supplied using the core fiber supply device of the CFY manufacturing apparatus.
The second point is that the thread path of the core fiber is different between the CSY manufacturing apparatus and the CFY manufacturing apparatus. In a CSY manufacturing apparatus, a configuration in which a core fiber is inserted from directly above a draft device for a sheath fiber is generally used, and a steep angle in which the core fiber delivery direction (insertion direction) is nearly perpendicular to the sheath fiber delivery direction. It is. On the other hand, in the CFY manufacturing apparatus, the sending direction of the core fiber is set to a loose angle close to parallel to the sending direction of the sheath fiber. For this reason, when the filament yarn is supplied using the core fiber supply device provided in the CSY manufacturing apparatus, the yarn drawn from the package provided separately from the core fiber supply device is directly above the draft device. The yarn is guided further to the lower side, and the yarn path is severely bent, and the yarn is damaged.

  That is, the problem to be solved is that the CSY manufacturing apparatus and the CFY manufacturing apparatus are dedicated apparatuses, respectively, and versatility is impaired.

  The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

That is, in claim 1,
A draft device for drafting the sheath fiber of the core yarn;
A core fiber supply device for supplying core fibers of the core yarn;
A core yarn manufacturing apparatus comprising:
The core fiber supply device is configured such that the core fiber delivery path in the core fiber supply device is at a front low and high height relative to the front side of the machine base at an upper position of the draft device,
In the rear upper part of the base frame of the core fiber supply device,
An unwinding device that supports an elastic yarn package and unwinds the elastic yarn as the core fiber;
A yarn guide for guiding the filament yarn as the core fiber drawn from the filament yarn package disposed behind the core fiber supply device;
Is provided.

In claim 2,
A moving mechanism is provided that allows the base frame to move upward with respect to the draft device.

In claim 3,
In the core fiber supply device,
The layout of the unwinding device and the yarn guide is set so that the feeding route of the elastic yarn with the unwinding device as the starting end position overlaps with the feeding path of the filament yarn with the yarn guide as the starting end position. With
A clamp cutter for the core fiber and an air soccer ball for feeding the core fiber to the clamp cutter are arranged on the elastic yarn delivery path.

  As effects of the present invention, the following effects can be obtained.

In claim 1,
Even if the core fiber is an elastic yarn or a filament yarn, it can be used, and versatility is improved.

In claim 2, in addition to the effect of claim 1,
If necessary, the core fiber supply device can be withdrawn above the draft device, and the maintainability of the draft device is improved.

In claim 3, in addition to the effect of claim 1 or claim 2,
While ensuring versatility corresponding to different core fibers, it leads to a reduction in the number of parts.

A core yarn manufacturing apparatus according to an embodiment of the present invention will be described.
The core yarn manufacturing apparatus is an apparatus that manufactures a core yarn that is formed by coating the periphery of a core fiber with a sheath fiber, a draft device that drafts the sheath fiber, a core fiber supply device that supplies the core fiber, and a core fiber And a spinning device for spinning the inserted sheath fiber to form a core yarn.

In FIG. 1 and FIG. 2, two core fiber supply devices 1 and a draft device 100 for two spindles are shown.
Here, the core yarn manufacturing apparatus includes a large number of core yarn manufacturing units that manufacture a single core yarn, and a driving device that drives the entire core yarn manufacturing unit and a control device that controls the driving device.
Accordingly, the two core fiber supply devices 1 and the double spindle draft device 100 shown in FIGS. 1 and 2 constitute a part of the two core yarn manufacturing units.

The core fiber supply device 1 can be used as an elastic yarn (elastic yarn) supply device (hereinafter, CSY supply device 1A) and as a filament yarn supply device (hereinafter, CFY supply device 1B). It is configured.
The core yarn formed using the elastic yarn as the core fiber is CSY (core / elastic yarn), and the core yarn formed using the filament yarn as the core fiber is CFY (core filament yarn).

The configuration of the core fiber supply device 1 will be schematically described with reference to FIG.
The core fiber supply device 1 is provided with each CSY module related to the supply of the elastic yarn 4 and each CFY module related to the supply of the filament yarn 14.
Each CSY module constitutes a CSY supply device 1A, and includes a CSY feed device 2, a yarn feeler 5, a CSY air soccer 6, a clamp cutter 7, and a nozzle pipe 8.
Each CFY module constitutes a CFY supply device 1B, and includes a CFY tensor 11, a CFY yarn guide 12, a yarn feeler 5, a CFY air soccer 16, a clamp cutter 7, and a nozzle pipe 8. .
Here, the yarn feeler 5, the clamp cutter 7, and the nozzle pipe 8 are modules that are shared by the CSY module and the CFY module.

Each module (each CSY module and each CFY module) is individually unitized, and is configured to be individually attachable to the base frame 10 of the core fiber supply device 1.
More specifically, each module is configured to be supported by a mounting frame for mounting on the base frame 10, and the module supported by the mounting frame is simply attached to the base frame 10. This is a mechanism attached to the base frame 10.

  It is possible to attach all the modules to the base frame 10 at the same time except for some modules. Some of the modules that cannot be attached at the same time are the CSY air soccer 6 and the CFY air soccer 16, and both of these modules (CSY air soccer 6 and CFY air soccer 16) are alternatively used as the base frame 10. It can be attached to.

Therefore, the core fiber supply device 1 can be configured as a CSY dedicated core fiber supply device, a CFY dedicated core fiber supply device, and a CSY / CFY combined core fiber supply device.
Here, the CSY-dedicated core fiber supply device is a device configured by attaching only the entire CSY module to the base frame 10. The CFY-dedicated core fiber supply device is a device configured by attaching only the entire CFY module to the base frame 10.
Further, the CSY / CFY combined core fiber supply device is a device configured by attaching the entire CSY module and the entire CFY module to the base frame 10 except for a part thereof. As described above, the CSY air soccer 6 and the CFY air soccer 16 are alternatively attached even in the CSY / CFY core fiber supply device. Further, since the yarn feeler 5, the clamp cutter 7, and the nozzle pipe 8 are also modules used in combination with the CSY module and the CFY module, these modules are also the base frame 10 in the CSY / CFY combined core fiber supply device. One will be attached to each.

The CSY supply device 1A is a device for supplying the elastic yarn 4 and is a core fiber supply device dedicated to CSY or mounting of the CSY air soccer 6 in the CSY / CFY core fiber supply device. It does not matter whether it is in a state.
Similarly, the CFY supply device is a device for supplying the filament yarn 14 and is a CFY-dedicated core fiber supply device or a mounting state of the CFY air soccer 16 in the CSY / CFY core fiber supply device. Whether or not.

1, 4, and 5 illustrate a state where the core fiber supply device 1 is used as the CSY supply device 1 </ b> A.
A base frame 10 of the core fiber supply device 1 is attached with a CSY delivery device 2, a yarn feeler 5, a CSY air soccer 6, a clamp cutter 7, and a nozzle pipe 8 along the delivery path of the elastic yarn 4. ing.

Here, the lower left side of FIG. 1 (and FIG. 2) is the machine table front side of the core yarn manufacturing apparatus by the operator, and is the reference (ie, front) in the front-rear direction of the core yarn manufacturing apparatus. The front of the machine base is the yarn path side on which the spun yarn travels.
Inside the CSY supply device 1 </ b> A, the CSY delivery device 2, which is the starting end position of the delivery path of the elastic yarn 4, is disposed at the rear upper part of the base frame 10. Further, the nozzle pipe 8 serving as the terminal position of the delivery path of the elastic yarn 4 is disposed at the front portion of the base frame 10. The delivery path of the elastic yarn 4 is formed so as to go from the rear upper side to the front lower side.

The CSY delivery device 2 is a module that supports the CSY package 3 and delivers the elastic yarn 4 from the CSY package 3. The CSY package 3 is a package formed by winding the elastic yarn 4 on a bobbin.
The CSY delivery device 2 serves as a drive source for the CSY cradle 21 that supports the CSY package 3, the CSY package drive drum 22 that rotates in contact with the CSY package 3, and the CSY package drive drum 22. A package driving motor 23 for CSY is provided.

The CSY cradle 21 is an arm that is swingably provided by a rotation support shaft 24 at the rear upper end of the base frame 10, and includes a bobbin holder 21 a that can hold and release the bobbin of the CSY package 3. Yes.
A CSY package drive drum 22 is disposed in front of and below the rotation support shaft 24. When the CSY cradle 21 is tilted forward, the CSY package 3 supported by the CSY cradle 21 is configured to come into contact with the CSY package driving drum 22.
The CSY package drive motor 23 is disposed between the rotation support shaft 24 and the CSY package drive drum 22.

  In the CSY supply device 1 </ b> A, the elastic yarn 4 drawn from the CSY package 3 reaches the nozzle pipe 8 via the CSY soccer 6 and the clamp cutter 7. The elastic yarn 4 is supplied from the nozzle pipe 8 to the draft device 100 and inserted into the sheath fiber 9.

The nozzle pipe 8 is means for guiding the elastic yarn 4 supplied from the CSY supply device 1 </ b> A to an appropriate position (described later) of the draft device 100.
As described above, the nozzle pipe 8 is also used in the CFY supply apparatus 1B.

The clamp cutter 7 is a module for cutting the elastic yarn 4 and holding the yarn end of the cut elastic yarn 4 when the supply of the elastic yarn 4 is stopped in the CSY supply device 1A.
This clamp cutter 7 is also used in the CFY supply apparatus 1B as described above.

The CSY soccer 6 is a module that draws in the elastic yarn 4 drawn out from the CSY package 3 by air injection and sends out the drawn in elastic yarn 4 to the nozzle pipe 8 via the clamp cutter 7.
In the CFY supply apparatus 1 </ b> B, a CFY soccer 16 is used instead of the CSY soccer 6.

A yarn feeler 5 is arranged on the delivery path of the elastic yarn 4 from the CSY package 3 to the CSY soccer 6, and the presence or absence of the elastic yarn 4 on the delivery path is detected by the yarn feeler 5. .
This yarn feeler 5 is also used in the CFY supply apparatus 1B as described above. In the case of the CFY supply device 1B, the filament yarn 14 is the target of yarn presence / absence detection.

2 and 6 show a state in which the core fiber supply device 1 is used as the CFY supply device 1B.
The base frame 10 of the core fiber supply device 1 includes a tensor 11, a CFY yarn guide 12, a yarn feeler 5, a CFY air soccer 16, a clamp cutter 7, and a nozzle pipe 8 along the filament yarn 14 feeding path. It is attached.
The CFY package 13 serving as a supply source of the filament yarn 14 is disposed behind the tensor 11. The CFY package 13 is a package formed by winding a filament yarn 14 on a bobbin.

  Inside the CFY supply device 1B, the tensor 11 and the yarn guide 12 that are the start position of the delivery path of the filament yarn 14 are arranged at the rear upper part of the base frame 10, and the nozzle that is the end position of the delivery path of the filament yarn 14 The pipe 8 is disposed at the front portion of the base frame 10. Similarly to the delivery path of the elastic yarn 4 in the CSY supply device 1A, the delivery path of the filament yarn 14 is also formed so as to go from the rear upper side to the front lower side.

  The CFY tensor 11 is a module that applies tension to the filament yarn 14 drawn from the CFY package 13.

  The CFY yarn guide 12 is means for guiding the delivery path of the filament yarn 14 drawn from the CFY package 13. In this CFY yarn guide 12, the delivery path of the filament yarn 14 is bent as follows. The delivery path of the filament yarn 14 is formed so as to face immediately before the upstream side of the CFY yarn guide 12 in the delivery direction, and is formed so as to face the front lower side on the downstream side of the CFY yarn guide 12 in the delivery direction. .

  Similarly to the CSY soccer 6, the CFY soccer 16 draws the filament yarn 14 drawn from the CFY package 13 by air injection, and the drawn filament yarn 14 passes through the clamp cutter 7 to the nozzle pipe 8. It is a module to send out.

The clamp cutter 7 and the nozzle pipe 8 are modules used not only in the CSY supply device 1A but also in the CFY supply device 1B.
The clamp cutter 7 is a module that cuts the filament yarn 14 and holds the yarn end of the cut filament yarn 14. The nozzle pipe 8 is a means for guiding the filament yarn 14 to an appropriate position (described later) of the draft device 100.

The layout of each module provided in the core fiber supply device 1 will be described with reference to FIGS. 4, 5, and 6.
The layout of each module related to the supply of the core fiber is the layout of each CSY module in the case of the elastic yarn 4, and the layout of each CFY module in the case of the filament yarn 14, but in either case, the core The fiber delivery path is configured to be front-rear and rear-high with respect to the front side of the machine base.

As shown in FIGS. 4 and 5, the layout of each CSY module is such that, in the usage state of the CSY supply device 1 </ b> A, the delivery path of the elastic yarn 4 is front-rear and rear-high with respect to the front side of the machine base. It is configured. Along the delivery path of the elastic yarn 4, each CSY module including the CSY delivery device 2, the yarn feeler 5, the CSY air soccer 6, the clamp cutter 7, and the nozzle pipe 8 is arranged on the base frame 10. Yes.
The elastic yarn 4 delivery path means the delivery path of the elastic yarn 4 from the CSY package 3 supported by the CSY delivery device 2 to the nozzle pipe 8, and is downstream of the nozzle pipe 8. Does not mean the transmission route of

In addition, when the CSY supply device 1A is in use, the CSY cradle 21 that supports the CSY package 3 is maintained in a posture inclined forward so that the elastic yarn 4 can be delivered by the CSY delivery device 2. . The position of the CSY cradle 21 at this time is defined as a cradle CSY position Cs.
When the elastic yarn 4 is delivered, the CSY cradle 21 swings according to a change in the diameter of the CSY package 3 (a decrease in diameter due to yarn unwinding). That is, the cradle CSY position Cs is not a fixed point but the entire swing range.

As shown in FIG. 6, the layout of each CFY module is also configured so that the filament yarn 14 delivery path is front-rear and rear-high with respect to the front side of the machine base when the CFY supply device 1B is in use. Yes. Along the delivery path of the filament yarn 14, each CFY module comprising a CFY tensor 11, a CFY yarn guide 12, a yarn feeler 5, a CFY air soccer 16, a clamp cutter 7, and a nozzle pipe 8 is mounted on the base frame 10. Is arranged.
Here, on the downstream side of the CFY yarn guide 12, the delivery path of the filament yarn 14 becomes front low and high. That is, the filament yarn 14 delivery path means the filament yarn 14 delivery path from the CFY yarn guide 12 to the nozzle pipe 8, and is upstream of the CFY yarn guide 12 and downstream of the nozzle pipe 8. Does not mean the transmission route of

Further, when the CFY supply device 1B is in use, the CSY cradle 21 is maintained in a posture inclined backward to prevent interference with the filament yarn 14. The position of the CSY cradle 21 at this time is defined as a cradle CFY position Cf.
When the CSY cradle 21 is in the cradle CFY position Cf, the filament yarn 14 extending from the CFY yarn guide 12 to the nozzle pipe 8 is also provided in the delivery path of the filament yarn 14 from the CFY package 13 to the CFY yarn guide 12. It does not interfere with the transmission route of.

  The delivery path of the elastic yarn 4 from the CSY delivery device 2 to the nozzle pipe 8 is configured to substantially overlap the delivery path of the filament yarn 14 from the CFY yarn guide 12 to the nozzle pipe 8 in a side view. The layout of each CSY module and each CFY module is set so that the delivery paths of these two yarns overlap.

  Specifically, the CSY package 3 supported by the CSY cradle 21 and the CSY package driving drum 22 are positioned substantially overlapping the delivery path of the filament yarn 14 from the CFY yarn guide 12 to the nozzle pipe 8. The contact portion is positioned. This contact portion is the unwinding position of the elastic yarn from the CSY package 3 and the starting end position of the elastic yarn feed path.

  Here, since the clamp cutter 7 and the nozzle pipe 8 are common to each CSY module and each CFY module, the elastic yarn 4 and the filament yarn are set by setting the layout of the CFY yarn guide 12 and the CSY feeding device 2. The 14 transmission paths can be substantially overlapped. The yarn filler 5 common to each CSY module and each CFY module, the CSY air soccer 6 and the CFY air soccer 16 exchanged between the CSY supply apparatus 1A and the CFY supply apparatus 1B are also the elastic yarn 4 and The filament yarns 14 are arranged on delivery paths that substantially overlap.

As shown in FIGS. 4 and 6, the core fiber supply device 1 is disposed above the draft device 100.
The delivery path of the sheath fiber 9 in the draft device 100 is also low front and rear with respect to the front side of the machine base, but the upward and downward inclination of the delivery path of the sheath fiber 9 is the core fiber delivery path of the core fiber supply apparatus 1. It is looser than the vertical tilt. Here, the type of the core fiber is not distinguished on the assumption that the delivery path of the elastic yarn 4 in the CSY supply apparatus 1A substantially overlaps the delivery path of the filament yarn 14 in the CFY supply apparatus 1B.
And the core fiber sent in the core fiber supply apparatus 1 approaches the sheath fiber 9 conveyed by the draft device 100 gradually in the vertical direction from the rear toward the front, and finally the sheath fiber 9. It is the structure inserted in. The nozzle pipe 8 serving as the core fiber outlet in the core fiber supply device 1 is located at the tip of the core fiber supply device 1 and directly above the front top roller 111 of the draft device 100.

The position switching mechanism of the core fiber supply device 1 will be described with reference to FIGS. 1, 2, 4, 5, 6, and 7.
In the core yarn manufacturing apparatus, the core fiber supply device 1 is arranged at a peripheral position of the draft device 100. For this reason, the core fiber supply device 1 may become an obstacle to the maintenance work of the draft device 100.
Therefore, the core fiber supply device 1 is provided with a position switching mechanism that can switch the relative position of the core fiber supply device 1 with respect to the draft device 100 in two stages. This position switching mechanism is a mechanism that allows the base frame 10 rotatably provided on the main frame 200 of the core yarn manufacturing apparatus to be locked at two positions within the rotation range.

As shown in FIG. 5, the core fiber supply devices 1 are respectively disposed on the left and right sides of the draft device 100, and the core fiber supply device 1 and the draft device 100 have a layout that does not overlap in plan view. Here, the left-right direction of the core fiber supply device 1 is the left-right direction with respect to the front side of the machine base, and corresponds to the parallel arrangement direction of a number of core fiber supply devices 1 and draft devices 100 provided in the core yarn manufacturing apparatus.
As shown in FIGS. 1, 2, 4, and 6, most of the core fiber supply device 1 is positioned above the draft device 100 in the vertical direction. The part (lower part) overlaps with the draft device 100 in a side view.

  For this reason, both side surfaces of the draft device 100 are in a state surrounded by the core fiber supply device 1, and it is difficult to perform maintenance of the draft device 100. Therefore, the core fiber supply device 1 is configured to be switchable at two positions in the vertical direction so that both side surfaces of the draft device 100 can be opened. That is, the vertical position of the core fiber supply device 1 can be switched between the side position of the draft device 100 when the core fiber is supplied and the position retracted upward during maintenance.

FIG. 7A shows the core fiber supply device 1 at the maintenance position Pm, and FIG. 7B shows the core fiber supply device 1 at the use position Pu.
The core fiber supply device 1 is configured to be switchable at two positions, a maintenance position Pm and a use position Pu, and the core fiber supply device 1 moves in the vertical direction by this position switching.
Here, the core fiber supply operation by the core fiber supply device 1 is performed in a state where the core fiber supply device 1 is at the use position Pu and the nozzle pipe 8 is close to the draft device 100. Further, when the maintenance work of the draft device 100 is performed, the core fiber supply device 1 is moved to the maintenance position Pm above the use position Pu.

  As shown in FIGS. 1 and 2, the base frame 10 is a box-shaped frame having a hollow inside, and is rectangular in plan view and triangular in side view, and is elongated along the core fiber delivery path. Is formed.

  As shown in FIG. 7, a mounting bracket 201 is fixed to each main fiber supply device 1 on the main frame 200, and the rear end portion of the base frame 10 has the rotation support shaft 31 on each mounting bracket 201. It is provided rotatably via. The rotation support shaft 31 serves as a fulcrum for position switching (posture change) of the core fiber supply device 1.

  Further, a support arm 32 is rotatably provided via an arm shaft 33 in the middle in the front-rear direction of the base frame 10. A support line shaft 210 extends from the main frame 200 along the direction in which the draft device 100 (core fiber supply device 1) is arranged. The support arm 32 is provided with two engaging portions 32a and 32b that engage with the support line shaft 210. When one of the engaging portions 32a and 32b is engaged with the support line shaft 210, the support arm 32 rotates. The flexible core fiber supply device 1 is locked.

The support arm 32 is a plate-like member having a U-shape when viewed from the side, and one end of the support arm 32 is rotatably supported on the base frame 10 by an arm shaft 33.
At both ends of the support arm 32, the engaging portions 32a and 32b, which are arc-shaped concave portions formed in accordance with the outer peripheral surface of the columnar support line shaft 210, are formed. At both ends of the support arm 32, the engaging portion 32 b is formed at the end on the same side as the arm shaft 33, and the engaging portion 32 a is formed at the end opposite to the arm shaft 33.

As shown in FIG. 7 (a), when the engaging portion 32a is engaged with the support line shaft 210, the downward movement of the core fiber supply device 1 biased downward by its own weight is restrained, and this maintenance is performed. Locked at position Pm.
Also, as shown in FIG. 7B, when the engaging portion 32b is engaged with the support line shaft 210, the downward movement of the core fiber supply device 1 biased downward by its own weight is restricted. Thus, it is locked at this use position Pu.

The layout of the nozzle pipe 8 and its peripheral part will be described with reference to FIG.
The nozzle pipe 8 is a core fiber discharge port in the core fiber supply device 1. A clamp cutter 7 is provided on the upstream side of the core fiber delivery path with respect to the nozzle pipe 8, and air soccer is further upstream. Is provided.
Here, the clamp cutter 7 is a module that includes a cutter that is a cutting means for the core fiber and a clamp that is a gripping means for the cut core fiber at the same time. In addition, the air soccer is a module that draws and sends out the core fiber by air injection. The air soccer 6 for CSY used when the core fiber is the elastic yarn 4 and the CFY used when the core fiber is the filament yarn 14. There is Air Soccer 16.

When the production of the core yarn is interrupted, the core fiber is cut by the clamp cutter 7 and the cut yarn end is gripped. Thereafter, when the production of the core yarn is resumed, the core fiber held in the clamp cutter 7 is blown out by the air injection of air soccer and is sent out to the nozzle pipe 8.
Therefore, the core fiber delivery path from the air soccer to the nozzle pipe 8 via the clamp cutter 7 is basically composed of an airtight path without air leakage, and yarn skipping by the air soccer is performed. It is supposed to be done effectively.

FIG. 8 shows a configuration when the CSY air soccer 6 is connected to the clamp cutter 7.
The CSY air soccer 6 includes an air nozzle 61, a filterless unit 62, a connection guide 63, and a compressor (not shown) that serves as a supply source of air to the air nozzle 61.

In the air nozzle 61, a core fiber introduction path 61a, a core fiber lead-out path 61b, and an air suction path 61c are formed. The introduction path 61a and the suction path 61c are separate paths that are separated from each other while ensuring airtightness, and both are paths that merge with the lead-out path 61b.
A suction path 61c is disposed outside the introduction path 61a at the junction with the lead-out path 61b, and the layout of the introduction path 61a and the suction path 61c is concentric (annular). Therefore, when air is discharged from the compressor to the suction path 61c, not only an air flow is formed from the suction path 61c to the lead-out path 61b, but also an air flow from the introduction path 61a to the lead-out path 61b is formed. . That is, air outside the introduction path 61a is sucked into the introduction path 61a.
With the above configuration, when the compressor is driven in a state where the core fiber is disposed near the inlet of the air nozzle 61 (introduction path 61a), the core fiber is drawn into the introduction path 61a and the air nozzle 61 is drawn from the lead-out path 61b. It is sent to the downstream side.

  The connecting guide 63 is a spacer for connecting the clamp cutter 7 to the CSY air soccer 6, and a core fiber passage hole 63 a is formed inside the connecting guide 63. In a state where the coupling guide 63 is attached to the clamp cutter 7, the passage hole 63 a is connected to a core fiber introduction path (an inlet guide hole 72 a described later) in the clamp cutter 7. The feeding route of the core fiber reaching the clamp cutter 7 is kept airtight.

  The filterless unit 62 is a device for opening the core fiber delivery path from the air nozzle 61 to the connecting guide 63 without securing airtightness. The filterless unit 62 includes an attachment plate 62a for the air nozzle 61, an attachment portion 62b for the connection guide 63, and a pair of connection columns 62c and 62c for connecting the attachment plate 62a and the attachment portion 62b.

  The core fiber sent out from the lead-out path 61 b of the air nozzle 61 passes between the connecting columns 62 c and 62 c of the filterless unit 62 and is sent to the passage hole 63 a of the connecting guide 63. Between the connecting columns 62c and 62c, the passage path of the core fiber is open, and the air discharged from the lead-out path 61b diffuses. Therefore, the pressure of the air reaching the passage hole 63a is significantly lower than the pressure of the air discharged from the lead-out path 61b.

  In the CSY soccer 6, the filterless unit 62 that impairs airtightness is provided to reduce the discharge pressure of air to the clamp cutter 7 and the nozzle pipe 8 for the following reason.

  The elastic yarn 4 is a thin single yarn that is difficult to capture and suck, and requires a long-time suction operation in the soccer 6 for CSY. Here, since the air discharged from the CSY soccer 6 is finally ejected from the outlet (discharge port) of the nozzle pipe 8, the sheath drafted by the draft device 20 after a long suction operation. The fiber 9 is adversely affected.

Therefore, by providing the CSY soccer 6 with a filterless unit 62 that impairs airtightness, the air pressure applied to the clamp cutter 7 while ensuring the suction pressure for drawing the elastic yarn 4 into the CSY soccer 6 is more than a certain level. Is made low.
In particular, as the length of the connecting columns 62c and 62c constituting the filterless unit 62 is increased, the amount of air diffused from the air nozzle 61 increases and the discharge pressure decreases. Therefore, the discharge pressure from the nozzle pipe 8 can be changed as appropriate by appropriately changing the design of the lengths of the connecting columns 62c and 62c. Note that the clamp cutter 7 and the nozzle pipe 8 are configured to maintain airtightness.

  With the configuration as described above, the discharge pressure from the nozzle pipe 8 is reduced even when long time air injection (suction and discharge) is performed in the CSY soccer 6 to capture the elastic yarn 4. The sheath fiber 9 in the draft device 20 is not adversely affected.

On the other hand, the CFY air soccer 16 shown in FIG. 9 includes an air nozzle 61, a connecting guide 63, and a compressor (not shown) serving as a supply source of air to the air nozzle 61. That is, the CFY air soccer 16 is configured by directly connecting the air nozzle 61 and the connecting guide 63 except for the filterless unit 62 from the CSY air soccer 6.
When the air nozzle 61 and the connecting guide 63 are directly connected, the lead-out path 61b and the passage hole 63a are connected in communication with each other while maintaining airtightness. Therefore, in the CFY air soccer 16, the air discharged from the lead-out path 61c of the air nozzle 61 is supplied into the clamp cutter 7 without being diffused.

Here, the filament yarn 14 is a yarn formed by bundling a plurality of filaments, and is easier to suck and capture than a single yarn, but is susceptible to fraying when subjected to air injection. If there is a filterless unit 62 that impairs airtightness, the filaments 14 that are loosened (individual filaments) may be entangled with the connecting columns 62c and 62c by being attracted by the air discharged from the filterless unit 62. .
For this reason, the CFY soccer 16 captures the filament yarn 14 that can be easily captured by performing short-time air injection (suction and discharge), and sends it to the nozzle pipe 8 for a short time even at high pressure. By doing so, an adverse effect due to air discharge to the sheath fiber 9 in the draft device 20 is prevented.

The clamp cutter 7 will be described with reference to FIGS. 8, 10, and 11.
The clamp cutter 7 is a device that simultaneously includes a cutter that is a cutting means for core fibers and a clamp that is a gripping means for the cut core fibers.
In particular, the clamp cutter 7 is configured with the intention of the following so that the core fiber can correspond to the elastic yarn 4 or the filament yarn 14.

When the core fiber is a filament yarn, if the timing of cutting by the cutter is delayed with respect to the timing of gripping by the clamp, the filament yarn sent to the downstream side is rubbed by the clamp, and there is a problem that the yarn quality is impaired.
On the other hand, when the core fiber is an elastic yarn, since the elasticity of the yarn itself is large, there is no problem as long as it is extended even if the timing of cutting by the cutter is delayed with respect to the timing of gripping by the clamp. However, if the timing of gripping by the clamp is delayed with respect to the timing of cutting by the cutter, the elastic yarn itself contracts due to elasticity, and the elastic yarn comes out from the entrance of the clamp cutter.
Therefore, the clamp cutter 7 is configured such that the cutter is reliably cut immediately after the gripping timing by the clamp.

As shown in FIG. 10, the clamp cutter 7 includes a support frame 71, and inside the support frame 71, the following path blocks, inlet guide 72, and first movement along the core fiber delivery path. A body 73, a second moving body 74, a fixed blade 75, and an outlet guide 76 are arranged. The nozzle pipe 8 is fixed to the outlet guide 76.
The delivery path includes an inlet guide hole 72a formed in the inlet guide 72, a first passage hole 73a formed in the first moving body 73, a second passage hole 74a formed in the second moving body 74, and a fixed blade 75. And the outlet guide hole 76a formed in the outlet guide 76, and the internal path of the nozzle pipe 8.

The support frame 71 includes a cylindrical body 71a whose axial direction is parallel to the core fiber delivery path, and a guide wall 71b that closes one opening of the cylindrical body 71a. The respective path blocks are arranged along the axial direction (the delivery path) inside the cylindrical body 71a.
In addition to the openings at both ends, the cylindrical body 71a has interference with a passage opening 71e of a piston arm 78a (described later) for moving the first moving body 73 and a moving second moving body 74. An opening 71c for preventing, an opening 71d for assembling each path block, and the like are appropriately formed.

  The inlet guide 72 is a columnar member having a thickness along the delivery path and formed in accordance with the inner wall shape of the cylindrical body 71a, and is fitted into the inner wall of the cylindrical body 71a. In the central portion of the inlet guide 72, an inlet guide hole 72a constituting a part of the delivery path is formed.

The first moving body 73 is a prismatic columnar member having a thickness along the delivery path, and is movable in the left-right direction in FIG. 10, that is, in one direction orthogonal to the delivery path, of the cylindrical body 71a. Supported inside. The first moving body 73 is sandwiched between the inlet guide 72 and the outlet guide 76 in the delivery direction, and is supported so as not to move within the support frame 71. A first passage hole 73 a that constitutes a part of the delivery path is formed at the center of the first moving body 73.
Here, the position where the inlet guide hole 72a and the first passage hole 73a are formed so that the inlet guide hole 72a and the first passage hole 73a communicate with each other regardless of the position where the first moving body 73 is in the one improvement. And the size of the opening is set.

  Spring holes 73b are formed in the side wall of the first moving body 73 (the wall facing the inner wall of the cylindrical body 71a). The side wall of the first moving body 73 and the cylindrical body 71a facing the side wall are formed. A compression spring 77 is provided between the inner wall. The urging direction A by the compression spring 77 is leftward in FIG. 10 and is one direction in the one direction.

  Further, the first moving body 73 is formed with a protruding portion 73c that protrudes toward the second moving body 74 side. The shape of the protrusion 73c is a cylindrical shape whose axial direction coincides with the delivery direction. The projecting portion 73c is formed on the compression spring 77 side of the first passage hole 73a (the right side in FIG. 10). In the one direction, the end portion of the first passage hole 73a and the end portion of the projection portion 73c Is formed at a substantially contacting position. That is, the protrusion 73c is formed immediately next to the first passage hole 73a. The protruding portion 73 c is configured to be inserted into the second passage hole 74 a of the second moving body 74.

  As will be described in detail later, the core fiber inserted into the clamp cutter 7 is sandwiched and gripped by the protruding portion 73c and the second passage hole 74a. The protrusion 73c and the second passage hole 74a are configured as follows. , Corresponding to one and the other of the pair of clamp pieces constituting the clamp.

  The second moving body 74 is also a prismatic columnar member having a thickness along the delivery path, but is movable in the left-right direction in FIG. 10, that is, in the one direction that is parallel to the first moving body 73. Further, it is supported on the inner wall of the cylindrical body 71a. In the delivery direction, the material is sandwiched between the inlet guide 72 and the outlet guide 76 and is supported so as not to move within the support frame 71. A second passage hole 74a is formed at the center of the second moving body 74. The second passage hole 74a forms a part of the delivery path and allows the protrusion 73c to be inserted.

The second passage hole 74a is a long hole formed in the longitudinal direction along the one direction rather than the diameter of the columnar protrusion 73c. For this reason, the protrusion 73c is movable along the one direction until it comes into contact with either end of the second passage hole 74a.
When the projecting portion 73c is in contact with the end surface of the second passage hole 74a on the front side in the urging direction A (the state shown in FIG. 10), the first passage hole 73a and the second passage hole 73a The two passage holes 74a are in communication with each other. That is, the core fiber delivery path is opened without being blocked from the inlet guide hole 72a to the second passage hole 74a.

In the second moving body 74, the core fiber delivery path is formed between the projecting portion 73c and the end surface of the second passage hole 74a located on the far side in the urging direction A. In the 2nd passage hole 74a, let the end surface located in the said back side be the clamp surface 74b. The clamp surface 74b is a curved surface that makes full contact with half of the outer peripheral surface of the protrusion 73c.
For this reason, when the protrusion 73c is in a state of being in contact with an end surface (clamp surface 74b) located on the far side of both end surfaces of the second passage hole 74a (state shown in FIG. 11 (a1) described later). The delivery path on the extension of the first passage hole 73a is closed. This is a state where the core fiber is gripped by the protruding portion 73c and the clamp surface 74b.

  As shown in FIG. 8, the clamp cutter 7 is provided with an air cylinder 78 as an actuator for moving the second moving body 74 forward and backward by the one improvement. A second moving body 74 is fixed to a piston arm 78 a provided in the air cylinder 78, and the second moving body 74 moves in the one direction by driving the air cylinder 78, and its stationary position is controlled.

  As shown in FIG. 10, the fixed blade 75 is a plate-like member having a thin delivery path, and is fixed to and supported by the outlet guide 78. A cutter hole 75a constituting a part of the delivery path is formed in the center of the fixed blade 75.

The cutter hole 75a is formed (tapered) so as to increase in diameter along the delivery path. Further, the end face of the fixed blade 75 on the upstream side in the delivery direction is formed flat. Therefore, a blade is formed at the inlet (upstream end) of the cutter hole 75a.
On the other hand, the end surface of the second moving body 74 on the downstream side in the delivery direction is also formed flat, and this end surface is defined as a movable blade surface 74c. The movable blade surface 74c and the upstream end surface of the fixed blade 75 are in sliding contact.
With the above configuration, the movable blade surface 74c and the fixed blade 75 in which the blade is formed by the cutter hole 75a constitute a cutter as a core fiber cutting means. If the cutter hole 75a is closed by the movable blade surface 74c, the delivery path of the core fiber is cut off. If the core fiber is present here, the core fiber is cut.

  The outlet guide 76 is a columnar member having a thickness along the delivery path and formed in accordance with the inner wall shape of the cylindrical body 71a, and is inserted into the cylindrical body 71a. In the central portion of the outlet guide 76, an outlet guide hole 76a constituting a part of the delivery path is formed. One end of the nozzle pipe 8 is inserted into the outlet guide hole 76a.

A guide wall 71 b of the support frame 71 is located on the downstream side of the delivery path of the outlet guide 76. A cutter spring 79 is disposed between the outlet guide 76 and the guide wall 71 b, and the fixed blade 75 is pressed toward the second moving body 74 by the biasing force of the cutter spring 79. That is, the cutter spring 79 biases the gap between the fixed blade 75 and the movable blade 74c constituting the cutter.
In addition, the path block, the first moving body 73, and the second moving body 74 arranged between the inlet guide 72 and the outlet guide 76 are not dropped in the support frame 71 by the urging force of the cutter spring 79. Supported by

  The guide wall 71b is formed with an opening through which the nozzle pipe 8 is inserted.

Next, each operation process of the clamp cutter 7 will be described with reference to FIGS. 10 and 11.
FIG. 10 and FIG. 11 (d) show a pause process of the clamp cutter 7, that is, a state in which the clamp cutter 7 functions as a simple core fiber delivery path without using it as a clamp or a cutter for the core fiber. .
At this time, the delivery path of the core fiber from the inlet guide 72 to the outlet guide 76 through the first movable body 73, the second movable body 74, and the fixed blade 75 is not blocked at any point and is opened. Has been.

  11 (a1), FIG. 11 (b1), FIG. 11 (c1), and FIG. 11 (d1) are sectional views cut along a plane along the feeding direction of the core fiber, similarly to FIG. 10 (a). Yes, FIGS. 11 (a2), 11 (b2), 11 (c2), and 11 (d2) are cross-sectional views cut along a plane that intersects the delivery direction of the core fiber, as in FIG. 10 (b). is there.

Fig.11 (a) has shown when the clamp cutter 7 exists in the pre-cut clamping process.
In the pre-cut clamping step, the air cylinder 78 is driven and the second moving body 74 is moved in the reverse direction of the urging direction A (hereinafter referred to as the clamping direction B) from the pause step of FIG. 10 or FIG. This means the operation of the clamp cutter 7 until the clamp surface 74b comes into contact with the protrusion 73c.
Here, since the movement of the second moving body 74 by the air cylinder 78 is not stopped by contact with the protrusion 73c, the execution time of the pre-cut clamping process is instantaneous.
When the core fiber (for example, the elastic yarn 4) is disposed in the delivery path, the core fiber is gripped by the projecting portion 73c and the clamp surface 74b constituting the clamp in the pre-cut clamping step.
In the pre-cut clamping step (FIG. 11A), the cutter hole 75a is not completely closed by the movable blade surface 74c when the clamp surface 74b comes into contact with the protrusion 73c. That is, at the stage of the pre-cut clamping process, the core fiber is only gripped by the protrusion 73c and the clamp surface 74b, and the core fiber has not been cut yet.

FIG.11 (b) has shown the case where the clamp cutter 7 exists in a clamp cutting process.
In this clamp cutting step, the air cylinder 78 is further driven to move the second moving body 74 in the clamping direction B from the pre-cutting clamping step shown in FIG. It means the operation of the clamp cutter 7 until the driven first moving body 73 is brought into contact with the inner wall of the cylindrical body 71a.
At the time when the first moving body 73 contacts the inner wall of the cylindrical body 71a, the cutter hole 75a is completely closed by the movable blade surface 74c.

  In the clamp cutting process, when the movable blade surface 74c completely closes the cutter hole 75a, the core fiber gripped by the protrusion 73c and the clamp surface 74b is cut by the movable blade surface 74c and the blade of the cutter hole 75a. The By this cutting, the core fiber on the downstream side from the cut location is detached from the clamp cutter 7 and dropped off, but the core fiber on the upstream side from the cut location is still gripped by the protruding portion 73c and the clamp surface 74b. And is held by the clamp cutter 7.

In the pre-cut clamping step, the second moving body 74 (second insertion hole 74b) is in contact with the first moving body 73 (projecting portion 73c), and the second moving body 74 is further moved in the clamping direction B. Then, the first moving body 73 is driven by being pushed by the second moving body 74. Here, the pressing force (moving force) of the second moving body 74 by the air cylinder 78 is configured to be stronger than the urging force of the compression spring 77, and the air cylinder 78 causes the second moving body 74 to be compressed by the compression spring. It is possible to push in the clamping direction B while resisting the urging force of 77.
Further, the core fiber gripped by the protruding portion 73c and the clamp surface 74b is securely sandwiched by the urging force of the compression spring 77 acting on the protruding portion 73c.

When the clamp cutter 7 continues to clamp the core fiber, the drive of the air cylinder 78 is controlled so as to maintain the state at the end of the clamp cut process (FIG. 11B). That is, while continuing to drive the air cylinder 78, against the urging force of the compression spring 77, the second moving body 74 is pressed in the clamping direction B, and the first moving body 73 is brought into contact with the inner wall of the cylindrical body 71a. It keeps the state to be made.
As long as it is in this state, the core fiber is securely gripped between the protrusion 73c and the clamp surface 74b by the urging force of the compression spring 77 acting on the protrusion 73c.

FIG. 11C shows a state in which the clamp cutter 7 is in the post-cut clamping process.
In the post-cut clamping step, the second moving body 74 is moved to a position where the contact between the clamp surface 74b and the protruding portion 73c is released by driving the air cylinder 78 from the clamp cutting step of FIG. It means the operation of the clamp cutter 7 until it is moved in the urging direction A. The state at the end of the post-cut clamping process is the same as the end of the pre-cut clamping process shown in FIG.
Here, the movement of the second moving body 74 by the air cylinder 78 is not stopped by the release of the contact with the projecting portion 73c, so the execution time of this pre-cut clamping step is instantaneous.

  When the second moving body 74 is moved further in the urging direction A than the state of the post-cut clamping process shown in FIG. 11C by driving the air cylinder 78, finally, FIG. 11D and FIG. It returns to the state of 10 pause processes.

  After the end of the post-cut clamping process, the holding of the core fiber by the clamp cutter 7 is released. At this time, by sending air along the delivery path in the clamp cutter 7 by the CSY air soccer 6 or the CFY air soccer 16, the core fiber in the clamp cutter 7 is sent out from the nozzle pipe 8. It can be sent out.

In the clamp cutter 7, the core fiber delivery path connects holes (first insertion hole 73a, second insertion hole 74a, etc.) formed in each of the path blocks (inlet guide 72, first moving body 73, etc.). Configured.
Each of these holes (the inlet guide hole 72a, the first insertion hole 73a, the second insertion hole 74a, the cutter hole 75a, and the outlet guide hole 76a) formed in each path block has a circular cross section, and the inner diameter thereof is Almost identical. The second insertion hole 74a is a long hole, and the width in the short direction is formed substantially the same as the diameter of each of the holes 72a, 73a, 74a, 75a, and 76a excluding the second insertion hole 74a. Since the portion 73c is always inserted into the second insertion hole 74a, the substantial opening size is close to the other holes 72a, 73a, 74a, 75a, and 76a.
Further, since the path blocks are biased so as to be pressed against each other by the cutter spring 79 in the core fiber feeding direction, airtightness is also maintained between the path blocks.

  With the above configuration, the core fiber delivery path formed in the clamp cutter 7 is airtight so that there is no air escape path, and the CSY air soccer 6 or the CFY air soccer 16 The core fibers are surely blown off (feeding out the yarn) by air injection at.

The clamp cutter 107 of 2nd embodiment is demonstrated using FIG. 12, FIG.
The clamp cutter 107 is also an apparatus similar to the clamp cutter 7 (first embodiment), and includes a cutter that is a cutting means for core fibers and a clamp that is a gripping means for the cut core fibers at the same time. .
In the core fiber supply device 1, the clamp cutter 7 (first embodiment) can be replaced with the clamp cutter 107 (second embodiment). In this case, the CSY air soccer 6 (or the CFY air soccer 16) and the nozzle pipe 8 are connected to the clamp cutter 107.

As shown in FIG. 12, the clamp cutter 107 includes a support frame 171, and inside the support frame 171, the following path blocks, inlet guide 172, and first movement along the core fiber delivery path. The body 173 and the second moving body 174, the movable blade 190, the fixed blade 175, and the outlet guide 176 are disposed. The movable blade 190 is fixed to the second moving body 174. The nozzle pipe 8 is fixed to the outlet guide 176.
The delivery path includes an inlet guide hole 172a formed in the inlet guide 172, a gap formed between the first moving body 173 and the second moving body 174, a cutter hole 190a formed in the movable blade 190, and a fixed blade. A cutter hole 175 a formed in the outlet 175, an outlet guide hole 176 a formed in the outlet guide 176, and an internal path of the nozzle pipe 8.

The support frame 171 includes a cylindrical body 171a whose axial direction is parallel to the core fiber delivery path, and a guide wall 171b that closes one opening of the cylindrical body 171a. The path blocks are arranged along the axial direction (the delivery path) inside the cylindrical body 171a.
In addition to the openings at both ends, the cylindrical body 171a prevents interference with an opening 171e for passage of a piston rod 178a (to be described later) for moving the first moving body 73 and an operating clamp piece 174 for movement. For example, an opening 171c and an opening 171d for assembling each of the path blocks are appropriately formed.

  The inlet guide 172 is a columnar member having a thickness along the delivery path and formed in accordance with the inner wall shape of the cylindrical body 171a, and is fitted into the inner wall of the cylindrical body 171a. In the central portion of the inlet guide 172, an inlet guide hole 172a constituting a part of the delivery path is formed.

The first moving body 173 includes a driven clamp piece 173a formed in a columnar shape, a pin 173b extending from the driven clamp piece 173, and a spring receiver 173c that is externally fitted to a midway portion of the pin 173b. Is done. This first moving body 173 is sandwiched between the inlet guide 172 and the outlet guide 176 in the delivery direction and cannot move, and is movable in the left-right direction in FIG. 10, that is, in one direction orthogonal to the delivery path.
The first moving body 173 is arranged so that the extending direction of the pin 173b is parallel to the one direction, the driven clamp piece 173a is located on the delivery path side, and the outer end portion of the pin 173b (driven clamp piece) (The end on the side without 173a) protrudes to the outside of the cylindrical body 171a from the opening 171c.

A compression spring 177 is disposed between the spring receiver 173c and the inner wall surface of the cylindrical body 171a facing the spring receiver 173c. The urging direction A2 by the compression spring 177 is rightward in FIG. 10, and is one direction in the one direction.
Here, the inlet guide hole 172a is not blocked by the driven clamp piece 173a no matter where the first moving body 73 is in the one improvement, and a member that can block the inlet guide hole 172a will be described later. This is the second moving body 174.

  The second moving body 174 is a prismatic columnar member having a thickness along the delivery path, and is movable in the left-right direction in FIG. 12, that is, in one direction orthogonal to the delivery path. Is supported inside. The second moving body 174 is also sandwiched between the inlet guide 172 and the outlet guide 176 in the delivery direction, and is supported so as not to move within the support frame 171. A second passage hole 174a that allows the first moving body 173 to move in the one direction (in the left-right direction in FIG. 12) with respect to the second moving body 174 is formed at the center of the second moving body 174. Yes.

The second passage hole 174a includes a long hole portion formed longer along the one direction than the diameter of the driven clamp piece 173a formed in a columnar shape, and an insertion hole portion through which the pin 173b is inserted. Become. For this reason, the driven clamp piece 173a is movable along the one direction until it comes into contact with either end of the second passage hole 74a.
When the driven clamp piece 173a is in contact with the end face located on the near side in the biasing direction A2 among the both end faces of the second passage hole 174a (state shown in FIG. 10), the second passage hole 174a is The driven clamp piece 173a is not closed and opened. That is, the core fiber delivery path is opened without being blocked from the inlet guide hole 172a to the second passage hole 174a.

In the second moving body 174, the core fiber delivery path is formed between the driven clamp piece 173a and the end surface of the second passage hole 74a located on the far side in the urging direction A2. In the second passage hole 74a, the end face located on the far side is a clamp face 174b. The clamp surface 174b is a curved surface that fully contacts half of the outer peripheral surface of the driven clamp piece 173a.
Therefore, when the driven clamp piece 173a is in contact with the end face (clamp face 174b) located on the back side in the urging direction A2 among the both end faces of the second passage hole 174a (see FIG. 13a described later). As shown, the delivery path on the extension of the inlet guide hole 172a is closed. This is a state where the core fiber is gripped by the driven clamp piece 173a and the clamp surface 174b.

  As shown in FIG. 12, the clamp cutter 107 is provided with an air cylinder 178 as an actuator for moving the second moving body 174 forward and backward by the one improvement. A second moving body 174 is fixed to a piston rod 178a provided in the air cylinder 178, and the second moving body 174 moves in the one direction by driving the air cylinder 178, and its rest position is controlled.

As shown in FIG. 12, the fixed blade 175 is a plate-like member having a thin delivery path, and is fixed to and supported by the outlet guide 178. A cutter hole 175 a that constitutes a part of the delivery path is formed in the center of the fixed blade 175.
The cutter hole 75a is formed (tapered) so as to increase in diameter along the delivery path. Further, the end face of the fixed blade 75 on the upstream side in the delivery direction is formed flat. Therefore, a blade is formed at the inlet (upstream end) of the cutter hole 75a.

On the other hand, a movable blade 190 is fixed downstream of the second moving body 74 in the delivery direction. The movable blade 190 is formed with a cutter hole 190a that communicates with the second insertion hole 174a and constitutes a part of the delivery path. The end surface of the movable blade 190 on the downstream side in the delivery direction is formed flat, and a blade is formed at the outlet (downstream end) of the cutter hole 190a.
The downstream end surface of the movable blade 190 and the upstream end surface of the fixed blade 75 are in sliding contact.
With the above configuration, the movable blade 190 and the fixed blade 75 constitute a cutter as a core fiber cutting means. When the movable blade 190 (second moving body 174) moves relative to the fixed blade 175 and the cutter hole 190a and the cutter hole 175a are closed, the core fiber delivery path is blocked, and the core fiber is present here. The core fiber is cut.

  The outlet guide 176 is a columnar member having a thickness along the delivery path and formed in accordance with the inner wall shape of the cylindrical body 171a, and is inserted into the cylindrical body 171a. An outlet guide hole 176a that constitutes a part of the delivery path is formed at the center of the outlet guide 176. One end of the nozzle pipe 8 is inserted into the outlet guide hole 176a.

A guide wall 171b of the support frame 171 is located downstream of the outlet guide 176 in the delivery path. A cutter spring 179 is disposed between the outlet guide 176 and the guide wall 171b, and the fixed blade 175 is pressed toward the movable blade 190 by the urging force of the cutter spring 179. That is, the cutter spring 179 biases the gap between the fixed blade 75 and the movable blade 190 constituting the cutter.
Further, due to the urging force of the cutter spring 179, each path block, the first moving body 173, and the second moving body 174 disposed between the inlet guide 172 and the outlet guide 176 does not fall off in the support frame 171. Supported by

  The guide wall 171b has an opening through which the nozzle pipe 8 is inserted.

Next, each operation process of the clamp cutter 107 will be described with reference to FIGS. 12 and 13. Each operation process of the clamp cutter 107 is the same as each process operation of the clamp cutter 7 shown with reference to FIGS. 10 and 11.
FIG. 12 and FIG. 13 (d) show a pause process of the clamp cutter 7, that is, a state in which the clamp cutter 107 functions as a mere core fiber delivery path without using the clamp cutter 107 as a clamp or a cutter for the core fiber. .
At this time, the delivery path of the core fiber from the inlet guide 172 to the outlet guide 176 through the gap between the first moving body 173 and the second moving body 174, the movable blade 190 and the fixed blade 175 is blocked at any location. It has never been opened.

FIG. 13A shows a state in which the clamp cutter 107 is in the pre-cut clamping process.
In the pre-cut clamping step, the air cylinder 178 is driven and the second moving body 74 is moved in the direction opposite to the urging direction A2 (hereinafter referred to as the clamping direction B2) from the pause step of FIG. 12 or FIG. This means the operation of the clamp cutter 107 until the clamp surface 174b comes into contact with the driven clamp piece 173a.
Here, since the movement of the second moving body 174 by the air cylinder 178 is not stopped by contact with the driven clamp piece 173a, the execution time of this pre-cut clamping process is instantaneous.
When the core fiber (for example, the elastic yarn 4) is disposed in the delivery path, the core fiber is gripped by the driven clamp piece 173a and the clamp surface 174b constituting the clamp in the pre-cut clamping process.
In the pre-cut clamping step, the cutter holes 190a and 175a are not completely closed when the clamp surface 174b comes into contact with the driven clamp piece 173a. That is, at the stage of the pre-cut clamping process, the core fiber is only gripped by the driven clamp piece 173a and the clamp surface 174b, and the core fiber has not been cut yet.

FIG. 13B shows a case where the clamp cutter 107 is in the clamp cutting process.
In this clamp cutting process, the air cylinder 178 is further driven to move the second moving body 174 in the clamping direction B2 and is brought into contact with the second moving body 174 from the pre-cut clamping process shown in FIG. This means the operation of the clamp cutter 107 until the driven first moving body 173 is pushed into the non-air cylinder 178 side for a certain distance.

  In the clamp cutting step, the first moving body 173 is pushed into the anti-air cylinder 178 side by the predetermined distance, but at this time, the cutter holes 190a and 175a are completely closed. Then, the core fiber gripped by the driven clamp piece 173a and the clamp surface 174b is cut by the movable blade 190 and the fixed blade 175. By this cutting, the core fiber on the downstream side from the cut part is detached from the clamp cutter 107 and dropped off, but the core fiber on the upstream side from the cut part is still at the yarn end portion by the driven clamp piece 173a and the clamp surface 174b. It is gripped and held by the clamp cutter 107.

In the pre-cut clamping step, the second moving body 174 (clamp surface 174b) is in contact with the first moving body 173 (driven clamp piece 173a), and the second moving body 174 is further moved in the clamping direction B2. Then, the first moving body 173 is driven by being pushed by the second moving body 174. Here, the pressing force (moving force) of the second moving body 174 by the air cylinder 178 is configured to be stronger than the urging force of the compression spring 177, and the air cylinder 178 causes the second moving body 174 to be compressed by the compression spring. It is possible to push in the clamping direction B2 against the urging force of 177.
Further, the core fiber gripped by the driven clamp piece 173a and the clamp surface 174b is securely sandwiched by the urging force of the compression spring 177 acting on the driven clamp piece 173a.

When the clamp cutter 107 continues to clamp the core fiber, the drive of the air cylinder 178 is controlled so as to maintain the state at the end of the clamp cut process (FIG. 13B). That is, while continuing to drive the air cylinder 178, against the urging force of the compression spring 177, the second moving body 174 is pressed in the clamping direction B2, and the contact between the driven clamp piece 173a and the clamp surface 174b is maintained. .
As long as it is in this state, the core fiber is securely gripped between the driven clamp piece 173a and the clamp surface 174b by the urging force of the compression spring 177 acting on the driven clamp piece 173a.

FIG. 13C shows a state in which the clamp cutter 107 is in the post-cut clamping process.
In the post-cut clamping step, the second moving body 174 is driven to a position where the air cylinder 178 is driven and the contact between the driven clamp piece 173a and the clamp surface 174b is released from the clamp cut step of FIG. Means the operation of the clamp cutter 107 until it is moved in the urging direction A2. The state at the end of the post-cut clamping process is the same as the end of the pre-cut clamping process shown in FIG. 13A, except for the driving direction of the air cylinder 178.
Here, the movement of the second moving body 174 by the air cylinder 178 is not stopped by releasing the contact with the driven clamp piece 173a, so the execution time of the pre-cut clamping process is instantaneous. .

  When the second moving body 174 is moved further in the urging direction A2 than the state of the post-cut clamping process shown in FIG. 13C by driving the air cylinder 178, finally, FIG. 13D and FIG. It returns to the state of 12 pause processes.

  After the end of the post-cut clamping process, the holding of the core fiber by the clamp cutter 107 is released. At this time, by sending air along the delivery path in the clamp cutter 107 by the CSY air soccer 6 or the CFY air soccer 16, the core fiber in the clamp cutter 107 is sent out from the nozzle pipe 8. It can be sent out.

In the clamp cutter 107, the core fiber delivery path is a hole formed in each of the path blocks (the inlet guide 172, the outlet block 176, etc.), or the gap between the first moving body 173 and the second moving body 174 (second A gap between the insertion hole 174a and the driven clamp piece 173a) is connected.
The holes (inlet guide holes 172a, cutter holes 175a and 190a, and outlet guide holes 176a) formed in each of the path blocks have a circular cross section and substantially the same inner diameter. The second insertion hole 174a is a long hole, and its width in the short direction is formed substantially the same as the diameter of each of the holes 172a, 175a, 190a, and 176a excluding the second insertion hole 74a. Since the driven clamp piece 173a is always inserted into the second insertion hole 174a, the substantial opening size is close to the other holes 172a, 175a, 190a, and 176a.
Further, since the path blocks are biased so as to be pressed against each other by the cutter spring 179 in the core fiber delivery direction, airtightness is also maintained between the path blocks.

  With the above configuration, the core fiber delivery path formed in the clamp cutter 107 is airtight so that there is no air escape path, and the CSY air soccer 6 or the CFY air soccer 16 The core fibers are surely blown off (feeding out the yarn) by air injection at.

The nozzle pipe 8 will be described with reference to FIG.
The nozzle pipe 8 includes a straight pipe 81 fixed to the outlet guide 76 and a bent pipe 82 fitted into the straight pipe 81. The straight pipe 81 is a straight pipe, and the bent pipe 82 is a pipe bent at a right angle in the middle, both of which are cylindrical members in which a passage path for core fibers is formed.

  The straight pipe 81 is a rigid body made of metal or the like, and the bent pipe 82 is a wear-resistant material such as ceramic. The bent pipe 82 can be fixed to the straight pipe 81 by fitting one end of the bent pipe 82 outside the straight pipe 81.

The operation of the clamp cutter 7 (107) will be described.
In each core yarn manufacturing unit, a core yarn is manufactured on the downstream side of each draft device 10. If this core yarn has a yarn defect, the core yarn is once cut by a cutter device (not shown) and then spliced. Is done. At this time, the control device provided in the core yarn manufacturing device not only controls the drive of the cutter device and the splicing suction device, but also simultaneously controls the operation of the clamp cutter 7 (107).

When the core fiber breaks during replacement of the core fiber package (CSY package 3 or CFY package 13) or during normal operation (core yarn production), the core is placed in the clamp cutter 7 (107). Each core yarn production unit is stopped in the absence of fibers (in an unclamped state). If the automatic yarn splicing operation in the core yarn manufacturing apparatus is performed in the state where there is no core fiber in the clamp cutter 7 (107) as in the normal yarn splicing, the core fiber is not sent to the draft device 100 side. Of course, splicing fails.
That is, when the core yarn manufacturing unit is stopped in a state where there is no core fiber in the clamp cutter 7 (107), the core fiber is introduced into the clamp cutter 7 before the core yarn manufacturing operation is resumed (see FIG. 8. It is necessary to prepare for the operation start by supplying the air nozzle 61) of the air soccer 6 · 16 shown in FIG.

Therefore, as shown in FIGS. 1, 2, 4, and 15, the core fiber supply device 1 has a clamp cutter switch 17 as a manually operated switch that operates only the clamp cutter 7 (107) independently. Is provided.
The clamp cutter switch 17 is provided on the front surface of the casing that houses the clamp cutter 7 (or 107).

  The clamp cutter switch 17 is a push switch for operating the air soccer (CSY air soccer 6 or CFY air soccer 16) and the clamp cutter 7 (or 107). The clamp cutter switch 17 is in an ON state when an external force is applied by an operator's finger or the like and is in a pressed position (pressed position), and is turned off when the external force is released.

Specifically, the operation of the clamp cutter switch 17 is performed under the following situation, for example, along FIG. 13 (clamp cutter 107).
When each core yarn manufacturing unit is stopped, the clamp cutter 107 is configured to stop in a state where the core fiber is clamped, and is in a state of a clamp cutting process (FIG. 13B). Normally, the core fiber is clamped by the clamp cutter 107 when in the state of the clamp cutting step (FIG. 13B). However, when the core yarn manufacturing unit is stopped due to replacement of the core fiber package or breakage of the core fiber, there is no core fiber in the clamp cutter 107.

In such a state (a state in which the core fiber is not clamped), the operator first turns on the clamp cutter switch 17. When the clamp cutter switch 17 is turned on, the air cylinder 178 is activated (in the urging direction A2) to form (open) the core fiber delivery path in the clamp cutter 107, and the air soccer is activated. , Compressed air is injected into the delivery path.
At this time, when the operator brings the core fiber to the introduction portion of the clamp cutter 107 (the air nozzle 61 of the air soccer 6 or 16 shown in FIGS. 8 and 9), the core fiber is in an operating state. It is sucked and drawn in by the football, and is sent out along the delivery path in the clamp cutter 107 as it is.

  Next, when the operator visually confirms that the core fiber has passed through the clamp cutter 107, the operator turns off the switch 17 for the clamp cutter. When the clamp cutter switch 17 is turned OFF, the air cylinder 178 is operated (in the clamping direction B2), the core fiber delivery path in the clamp cutter 107 is closed, and the core fiber is clamped. At the same time, the operation of the air soccer is stopped, and the supply of compressed air into the delivery path is stopped.

Through the above operation, the core fiber is clamped by the clamp cutter 107. If such preparation is completed, the automatic splicing operation in the core yarn manufacturing apparatus is executed in the same manner as in normal splicing, and the splicing operation is successful.
The above operation is the same for the clamp cutter 7.

As described above, by providing the core fiber supply device 1 with the clamp cutter switch 17 which is a manually operated switch, the following effects can be obtained. Even when the core fiber has fallen out of the clamp cutter 7 (107), the core fiber can be clamped prior to the automatic yarn splicing operation in the core yarn manufacturing apparatus, and the success rate of the splicing operation can be increased. Can be improved.
In addition, since the clamp cutter 7 (107) can be operated independently, adjustment and maintenance are facilitated, such as easy confirmation of the operation of the clamp cutter 7 (107).

The draft device 100 will be described with reference to FIGS. 5 and 14.
The draft device 100 is a device arranged in front of the spinning device in the feeding direction of the sheath fiber 9 in the spinning device, and drafts the sheath fiber 9 supplied to the spinning device.
The draft device 100 is a roller-type draft device, and includes a plurality of pairs of draft rollers (four in this embodiment) sandwiching the sheath fibers 9, and the peripheral speed difference between the draft rollers before and after the sheath fibers 9 in the feeding direction. Is provided to stretch (draft) the sheath fiber 9.
The draft device 100 is provided with the four pairs of draft rollers on the left and right sides, and one draft device 100 corresponds to a draft of two sheath fibers 9.

As shown in FIGS. 5 and 14, the four pairs of draft rollers are arranged in the order closer to a spinning device (not shown) arranged on the downstream side of the draft device 100 in the feeding direction of the sheath fiber 9. The pair 110, the second roller pair 120, the third roller pair 130, and the back roller pair 140.
Further, a trumpet 150 is disposed on the upstream side of the back roller pair 140 in the feeding direction of the sheath fiber 9 as means for guiding the sheath fiber 9 to the inside of each draft roller pair.

Each draft roller pair includes a top roller and a bottom roller that face each other with the sheath fiber 9 interposed therebetween.
The front roller pair 110 includes a front top roller 111 and a front bottom roller 112. The second roller pair 120 includes a second top roller 121 and a second bottom roller 122. The third roller pair 130 includes a third top roller 131 and a third bottom roller 132. The back roller pair 140 includes a back top roller 141 and a back bottom roller 142.
An apron belt 125 is wound around the outer periphery of the second top roller 121, and an apron belt 126 is wound around the outer periphery of the second bottom roller 122, and the sheath fiber 9 faces between the apron belts 125 and 126. It is pinched by contact.

Each of these draft rollers is supported by a roller shaft.
The left and right front top rollers 111 are fixed to both ends of the top roller shaft 113. The left and right second top rollers 121 are fixed to both ends of the top roller shaft 123. The left and right third top rollers 131 are fixed to both ends of the top roller shaft 133. The left and right back top rollers 141 are fixed to both ends of the top roller shaft 143.
The left and right front bottom rollers 112 are fixed to both ends of the bottom roller shaft 114. The left and right second bottom rollers 122 are fixed to both ends of the bottom roller shaft 124. The left and right third bottom rollers 132 are fixed to both ends of the bottom roller shaft 134. The left and right back bottom rollers 142 are fixed to both ends of the bottom roller shaft 144.

The draft device 100 includes a draft base frame 101 that is fixed to the main frame 200 and a draft cradle 102 that is openable and closable around the support base frame 210 with respect to the draft base frame 101 as a frame that opens and closes. It has been.
The bottom roller shafts 114, 124, 134, and 144 are rotatably supported on the draft base frame 101, and the top roller shafts 113, 123, 133, and 143 are rotatably supported on the draft cradle 102. .

  A belt-type drive mechanism is provided at the end of each bottom roller shaft 114, 124, 134, 144 (the end side of each draft roller), and each bottom roller shaft 114, 124, 134, 144 is driven. Then, each draft roller on the bottom side is driven. In addition, due to the frictional contact between the draft rollers facing each other, the top draft rollers are also driven, and all the draft rollers are driven.

The core fiber delivery from the core fiber supply device 1 to the draft device 100 will be described with reference to FIGS. 5, 14, and 15.
As shown in FIG. 5, the core fiber supply devices 1 are respectively disposed on the left and right sides of the draft device 100, and the core fiber supply device 1 and the draft device 100 do not overlap in plan view.
The core fiber delivered from the nozzle pipe 8 of the core fiber supply device 1 is guided toward the peripheral surface of the front top roller 111 of the draft device 100 via the insertion guide 160 provided in the draft device 100. Here, the discharge port of the nozzle pipe 8 is located at a position separated in the left-right direction from the end surface of the front top roller 111, and the core fiber is configured to be “side-by-side” in the draft device 100.

As shown in FIG. 14, the discharge port of the nozzle pipe 8 is located above the front top roller 111 in a side view.
The core fiber guided to the peripheral surface of the front top roller 111 is sandwiched between the apron belt 125 of the second top roller 121 and the front top roller 111 as the front top roller 111 rotates, and the front top roller 111 It is inserted into the sheath fiber 9 delivered between the roller 111 and the front bottom roller 112.
Here, on the configuration for sending the sheath fiber 9 from the back roller pair 140 to the front roller pair 110, the rotation direction of the front top roller 111 and the second top roller 121 is between the front top roller 111 and the second top roller 121. The direction is to draw the core fiber.

At the start of the supply of the core fiber, the yarn end of the core fiber passing through the nozzle pipe 8 and the insertion guide 160 comes into contact with the peripheral surface of the front top roller 111. Due to the contact friction between the yarn end and the peripheral surface of the front top roller 111, the core fiber is sandwiched between the apron belt 125 and the front top roller 111 as the front top roller 111 rotates.
In this manner, when the draft device 100 and the core fiber supply device 1 are driven, the core fiber is inserted into the sheath fiber 9 simply by feeding the core fiber from the nozzle pipe 8 at the start of supply of the core fiber. Is completed.

An insertion guide 160 shown in FIGS. 15A and 15B is a cover that surrounds the guide path of the core fiber from the nozzle pipe 8 toward the peripheral surface of the front top roller 111. This cover includes an upper cover 161 and a lower cover 162 that is fitted to the outside of the upper cover 161.
The upper cover 161 and the lower cover 162 have a U-shaped cross section when viewed from the route direction of the guide route, and one of the four sides surrounding the guide route is open. When the insertion guide 160 is attached, the upper cover 161 has a configuration in which the lower portion is opened, and the lower cover 162 has a configuration in which the upper portion is opened.

With the posture in which the inner side of the upper cover 161 and the inner side of the lower cover 162 are opposed to each other, the lower cover 162 is fitted on the outer side of the upper cover 161 to constitute an insertion guide 160 that surrounds the guide path.
Here, the lower cover 162 is shorter in the path direction than the upper cover 161, and the upper cover 161 and the lower cover 162 are arranged so as to be aligned on the outlet side (downstream in the guide direction). At the connection with the pipe 8, the lower part of the guide path is exposed to the outside. A portion where the guide path is exposed is defined as an exposed portion 160 a of the insertion guide 160.

As shown in FIG. 15A, the upper end portion of the upper cover 161 (a bifurcated connecting portion in the U-shaped cross section) is a guide wall 161a that guides and changes the guiding direction of the core fiber. The guide wall 161a is a wall inclined obliquely downward from the nozzle pipe 8 toward the front top roller 111 side.
In addition, the front end portion and the rear end portion (a bifurcated leg in the U-shaped cross section) of the upper cover 161 and the lower cover 162 are walls that prevent the core fibers from falling off the insertion guide 160.

The direction in which the core fiber is delivered from the nozzle pipe 8 is a direction parallel to the axial direction of the front top roller 111 and toward the front top roller 111, and this direction is defined as a guide front direction C1.
The core fiber delivered from the nozzle pipe 8 contacts the guide wall 161a in the guide front direction C1 and is guided obliquely downward along the inclination of the guide wall 161a. Then, the core fiber is sent out toward the front top roller 111 obliquely below the insertion guide 160. The delivery direction of the core fiber after the delivery direction is bent by the guide wall 161a is defined as a guide rear direction C2.

  When the feeding of the core fiber whose yarn end is held by the clamp cutter 7 is started, the air soccer is driven, and air is also ejected from the nozzle pipe 8 along with the feeding of the core fiber. The guide wall 161a abuts not only the core fiber but also the jet air, and the air pressure is reduced. And even if a part of the air injected from the nozzle pipe 8 reaches the draft device 100 side, the sheath fiber 9 in the draft device 100 is not adversely affected.

In addition to the guide wall 161a, there is the following configuration as a measure for preventing an adverse effect on the sheath fiber 9 due to the air injected from the nozzle pipe 8.
The inlet of the insertion guide 160 is formed wider than the outlet of the nozzle pipe 8, and the exposed portion 160 a is formed in the insertion guide 160. With this configuration, air from the nozzle pipe 8 is diffused, and the air pressure is likely to decrease.

Further, the nozzle pipe 8 is configured to be movable so that it can be connected to and disconnected from the insertion guide 160.
As described above, the nozzle pipe 8 includes the straight pipe 81 and the bent pipe 82 fitted into the straight pipe 81. Since the straight pipe 81 is a rigid body and the bent pipe 82 is an elastic body, the bent pipe 82 can be freely attached to and detached from the straight pipe 81, and the bent pipe 82 is rotated in the axial direction of the straight pipe 81 and fixed at an arbitrary position. It is also possible to do.
Therefore, if the attachment position (attachment angle) of the bent pipe 82 with respect to the straight pipe 81 can be the position (connection position Eu) at which the nozzle pipe 8 is connected to the insertion guide 160, the nozzle pipe 8 is detached from the insertion guide 160. It is also possible to set the position (release position Em). By configuring the nozzle pipe 8 to be movable in this manner, for example, a problem that the core fiber is erroneously sent to the draft device 100 side during manual operation or the like is prevented.

The core yarn manufacturing apparatus of this invention is put together.
A core yarn manufacturing apparatus according to a first aspect of the present invention includes a draft device that drafts a sheath fiber of a core yarn, and a core fiber supply device that supplies the core fiber of the core yarn.
The core fiber supply device is configured such that the core fiber delivery path in the core fiber supply device is at a front low and high height relative to the front side of the machine base at a position above the draft device. The upper part of the base frame of the fiber supply device is drawn out from an unwinding device that supports the elastic yarn package and unwinds the elastic yarn as the core fiber, and a filament yarn package disposed behind the core fiber supply device. And a yarn guide for guiding the filament yarn as the core fiber.

  For this reason, even if the core fiber is an elastic yarn or a filament yarn, it can be handled, and versatility is improved.

The core yarn manufacturing apparatus according to the second invention is the following structure in the first invention.
A moving mechanism that allows the base frame to move upward relative to the draft device is provided.

  The core fiber supply device 1 according to the present embodiment has the base frame 10 provided on the main frame 200 of the core yarn manufacturing device so as to be rotatable around the rotation support shaft 31, and can be locked at two positions within the rotation range. It is configured. The base frame 10 is provided with a support arm 32 having engaging portions 32a and 32b provided at both ends thereof so as to be freely rotatable via an arm 33. Both the engaging portions 32a and 32b are provided in the main frame 200. The support line shaft 210 is configured to be engageable. By engaging one of the engaging portions 32a and 32b and the support line shaft 210, the base frame 10 is locked at different positions in the vertical direction.

  For this reason, the core fiber supply device can be retreated above the draft device as necessary, and the maintainability of the draft device is improved.

A core yarn manufacturing apparatus according to a third aspect of the present invention has the following configuration in the first aspect or the second aspect.
In the core fiber supply device, the unwinding device and the yarn are arranged so that the filament yarn feeding path having the yarn guide as a starting end position overlaps the elastic yarn sending path having the unwinding device as a starting position. The guide layout is set, and the core fiber clamp cutter and the air soccer ball for feeding the core fiber to the clamp cutter are arranged on the elastic yarn feed path.

  The clamp cutter 7 according to the present embodiment is used for both the filament yarn and the elastic yarn. However, the clamp cutter 7 for each different core fiber may be replaced with the base frame 10 every time the core fiber is switched. . Further, in the present embodiment, the air soccer is the CSY air soccer 6 or the CFY air soccer 16, and either one is alternatively attached to the base frame 10.

  For this reason, it leads to reduction of a number of parts, ensuring the versatility corresponding to a different core fiber.

It is a perspective view of the state which uses a core fiber supply apparatus as a supply apparatus for CSY. It is a perspective view of the state which uses a core fiber supply apparatus as a supply apparatus for CFY. It is a block diagram which shows the structure of a core fiber supply apparatus. It is a side view of the state which uses a core fiber supply apparatus as a supply apparatus for CSY. It is a top view which shows a core fiber supply apparatus and a draft apparatus. It is a side view of the state which uses a core fiber supply apparatus as a supply apparatus for CFY. It is a side view which shows two positions which can switch a core fiber supply apparatus, (a) A figure shows a maintenance position and (b) figure shows a use position. It is a plane partial sectional view which shows the layout of the air soccer for CSY, a clamp cutter, and a nozzle pipe. It is a partial plane sectional view showing an air soccer for CFY. It is sectional drawing which shows the structure of a clamp cutter, (a) A figure is sectional drawing cut | disconnected by the plane in alignment with the sending direction of a core fiber, (b) Drawing is sectional drawing cut | disconnected by the plane which crosses the sending direction of a core fiber. . It is a figure which shows each operation | movement process of a clamp cutter, (a) A figure shows a pause process, (b) A figure shows a pre-cut clamp process, (c) A figure shows a clamp cut process, (d) A figure shows a post-cut clamp process . It is a plane partial cross section figure which shows the layout of the air soccer for CSY, the clamp cutter of 2nd embodiment, and a nozzle pipe. It is a figure which shows each operation | movement process of the clamp cutter of 2nd embodiment, (a) A figure is a pause process, (b) A figure is a pre-cut clamp process, (c) A figure is a clamp cut process, (d) A figure is The clamp process after a cut is shown. It is a side view which shows a draft apparatus and a nozzle pipe. It is a figure which shows the structure of an insertion guide, (a) A figure is a front view, (b) A figure is the figure seen from the guide direction of the core fiber.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Core fiber supply apparatus 2 CSY unwinding apparatus 4 Elastic thread 6 CSY air soccer 7 Clamp cutter 10 Base frame 12 CFY thread guide 13 CFY package 14 Filament yarn 16 CFY air soccer 31 Rotating spindle 32 Support arm 32a・ 32b Engagement part 100 Draft device 200 Main frame 210 Support line shaft

Claims (3)

A draft device for drafting the sheath fiber of the core yarn;
A core fiber supply device for supplying core fibers of the core yarn;
A core yarn manufacturing apparatus comprising:
The core fiber supply device is configured such that the core fiber delivery path in the core fiber supply device is at a front low and high height relative to the front side of the machine base at an upper position of the draft device,
In the rear upper part of the base frame of the core fiber supply device,
An unwinding device that supports an elastic yarn package and unwinds the elastic yarn as the core fiber;
A yarn guide for guiding the filament yarn as the core fiber drawn from the filament yarn package disposed behind the core fiber supply device;
Is provided,
A core yarn manufacturing apparatus characterized by that. A moving mechanism that allows the base frame to move upward relative to the draft device;
The core yarn manufacturing apparatus according to claim 1. In the core fiber supply device,
The layout of the unwinding device and the yarn guide is set so that the feeding route of the elastic yarn having the unwinding device as the starting end position overlaps with the feeding path of the filament yarn having the yarn guide as the starting end position. With
On the delivery path of the elastic yarn, a clamp cutter for the core fiber and an air soccer ball for sending the core fiber to the clamp cutter are disposed.
The core yarn manufacturing apparatus according to claim 1 or 2, characterized by the above.

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