JPH0578924A - Core tube return system - Google Patents

Abstract

PURPOSE:To enable the automatic return of a core tube discharged from a double twister to a doubled yarn winder. CONSTITUTION:A conveyor 3 is placed between a double twister 1 and a doubled yarn winder 2 and the core tube B discharged from the double twister 1 is returned to the doubled yarn winder 2 with the conveyor.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a core tube returning system between a double twister and a yarn winding machine.

[0002]

2. Description of the Related Art A compound yarn winding machine uses two yarns to be fed into one yarn.
It is adapted to be wound around a core tube according to the thread shape of a book to form a package. This compound yarn winding machine spins two yarns by drafting two slivers and twisting them with an air spinning nozzle. The two yarns are combined into one yarn shape and wound on a core tube, It includes a pneumatic spinning device adapted to form a package.

On the other hand, the double twister is adapted to introduce the package produced by the above-mentioned yarn winding machine to the yarn supplying side, unwind the yarn from the package and twist the yarn to wind it into the winding package. Then, in order to improve the productivity of the winding package, a system was proposed in which a double twister was directly connected to the compound yarn winding machine and the package produced from the compound yarn winding machine was automatically supplied to the double twister. It has been reached (JP-A-2-229229, etc.).

[0004]

However, even in the above system, the core tube discharged from the double twister is currently loaded on the trolley and returned by the worker to the yarn winding machine. Was desired.

Therefore, an object of the present invention is to provide a core tube returning system capable of automatically returning the core tube discharged from the double twister to the yarn winding machine.

[0006]

In order to achieve the above object, the present invention provides a conveyor for returning a core tube discharged from a double twister to a yarn winding machine between the double twister and the yarn winding machine. It is characterized by

[0007]

According to the above structure, the core tube discharged from the double twister can be automatically returned to the compound thread winding machine by the core tube returning conveyor provided between the double twister and the compound thread winding machine. Labor can be reduced.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 denotes a double twister. A compound yarn winding machine 2 is arranged in parallel to the double twister 1, and a package P produced by the compound yarn winding machine 2 is supplied to the double twister 1 between them. A core tube B directly connected by a package conveyer (not shown) and discharged from the double twister 1 between the double twister 1 and the yarn winding machine 2.
A conveyor 3 for returning the mixed yarn to the yarn winding machine 2 is installed.

The core tube return conveyor 3 includes an endless belt 4
A core tube receiver 5 having an L-shaped cross section is attached at an appropriate interval to the package replacement station 6 of the double twister 1.
And a horizontal portion 3b extending continuously from the upper end of the vertical portion 3a onto the core tube stocker 7 of the yarn winding machine 2. A drive belt wheel 9 driven by a motor 8 is provided at the carry-in end of the conveyor 3.
However, the driven belt wheel 10 is arranged at the carry-out end, and the intermediate belt wheel 11 is arranged between the vertical portion 3a and the horizontal portion 3b.

A package conveyor 12 is installed in the double twister 1 so as to circulate along a plurality of units arranged in parallel, and a package is exchanged in the middle of the package conveyor 12 as shown in FIGS. A station 6 is provided. The package conveyor 12 is a conveyor that carries the yarn feeding package P on a tray and conveys it. The package conveyor 12 mainly includes a guide frame 13 that guides the tray T and an endless round belt 14 that contacts the bottom of the tray T and transfers the same. Has been done. A peg 15 is projectingly provided at the center of the tray T, and the package P is inserted into the peg 15 via a cylindrical adapter 16 having a narrowed upper end.

On the package conveyor 12 of the station 6, the first tray stopper 17 and the package P for stopping the tray T for exchanging the core tube B and the package P are provided.
A second tray stopper 18 that stops the tray T for the yarn end Y yarn feeding process is provided at the front and rear. An arm 19 for removing the core tube B from the adapter 16 on the tray T stopped by the first tray stopper 17 and inserting the package P into the adapter 16 is provided at the station 6 so as to be rotatable and movable up and down. ing.

A boss 21 slidably fitted to a standing spline shaft 20 is attached to a base end portion of the arm 19, and the boss 21 is screwed to a standing screw shaft 22 adjacent to the spline shaft 20. Is engaged with the nut 23. A drive motor 24 is provided at one end of the spline shaft 20.
However, the drive motor 25 is connected to one end of the screw shaft 22, respectively.

A package tray 26 for mounting the package P in an upright state is provided at the tip of the arm 19, and the tray T has a notch 27 through which the lower end of the core tube of the package P can pass horizontally. Is formed so as to face in the transport direction of. Further, a chuck 29 that opens and closes by a cylinder 28 and holds the core tube B is attached to the lower portion of the package tray 26.

The arm 19 has the package conveyor 12
A position (standby position) F rotated 90 degrees from the upper exchange position E
A package supply conveyor (not shown) for supplying the package P to the package tray 26 is installed in the package tray 26, and the core G is wound around the core tube B at a position (core tube discharge position) G rotated by 90 degrees from the standby position F. A residual yarn removing device 31 for removing the yarn 30 is provided.

At the feeding position H, a drive roller 32 for rotating the tray T forward and backward, and a suction mouth 34 swiveled by a cylinder 33 for releasing the suction of the yarn end attached to the yarn layer surface of the package P. As shown in FIG. 4, there is provided a yarn guide lever 35 for guiding the yarn end Y, which has come out, to be wound around the upper end of the adapter 16. The thread guide lever 35 is vertically rotatably supported on a vertical frame 36 by a support shaft 37, and has a driving cylinder 38 connected to one end thereof. Thread guide lever 3
5 is formed in a V-shape, and a cutter 39 for cutting the yarn Y is provided at the center thereof.

The residual thread removing device 31 has a chuck 40 which is opened and closed by a cylinder (not shown) for holding the core tube B transferred from the core tube chuck 29 of the arm 19, and this chuck 40 is shown in FIG. The rotary cutter 41 for cutting the residual yarn 30 wound around the core tube B is attached. Above the chuck 40, a pusher 43 that is moved up and down by a cylinder 42 for pushing down the gripped core tube B is provided, and below the chuck 40, the core tube B falling from the chuck 40 is returned. Three
A chute 44 is provided for guiding to the core tube receiver 5 at the carry-in end. In the vicinity of the rotary cutter 41, a suction pipe (not shown) for sucking and removing the cut residual thread mass is opened. The core tube B goes through the residual yarn removing device 31 regardless of the presence or absence of the residual yarn 30.

On the other hand, the composite yarn winding machine 2 has a plurality of units U arranged side by side as shown in FIG.
A drafting device 45 for drafting a sliver, an air spinning nozzle (not shown) for twisting a drafted fiber bundle, and two yarns spun from the same are wound into a single thread and wound around a core tube. Winding unit 4 for taking and forming package P
And 6 are provided. The compound yarn winding machine 2 is provided with a doffing carriage 47 that runs along the unit U and performs doffing of the package P of the winding unit 46.

Further, a core tube stocker 7 for storing the core tube B returned by the core tube return conveyor 3 is provided at one end of the composite thread winding machine 2, and the composite thread winding machine 2 is provided with a doffing carriage 47. A core tube supply conveyor 49 for supplying the core tube B discharged from the core tube stocker 7 to the doffing trolley in response to the core tube request signal is provided along the unit U.

A core tube introducing port 50 is formed at the top of the core tube stocker 7, and the core tube introducing port 50 and the carry-out end of the core tube returning conveyor 3 are connected by a chute 51. A meandering passage 52 for storing the core tube B is provided in the core tube stocker 7, and the core tube B introduced through a chute 51 is temporarily stopped at the upper end of the core tube introduction port 50 to be in a posture. A stopper 53 for adjusting the horizontal position of the core tube B is provided by a cylinder 54 so as to be able to move up and down.
When detected by, the stopper 53 is tilted to roll the core tube B downward.

The lower end of the passage 52 is opened as a core tube outlet 56, and a pusher 58 for pushing the core tube B onto the loading end of the core tube supply conveyor 49 by driving a cylinder 57 is provided at the core tube outlet 56. Has been. The pusher 58 is driven by a core tube request signal from the doffing carriage 47.

Next, the operation of the embodiment will be described. The package P is conveyed to the unit of the double twister 1 by the package conveyor 12, and the package P and the core tube B in the unit are exchanged together with the adapter 16. Core tube B
When the tray T is stopped by the first tray stopper 17 by the package conveyor 12 and the tray T is stopped by the first tray stopper 17, the arm 19 is swung from the standby position F to the exchange position E, and the core tube B is moved by the core tube chuck 29. The core tube B is taken out from the adapter 16 on the tray T, turned to the core tube discharge position G, and the core tube B is delivered to the chuck 40 of the residual yarn removing device 31.

Thereafter, the arm 19 returns to the standby position F,
The package P is received from the package supply conveyor (not shown) on the package tray 26, swiveled to the exchange position E, the package P is inserted into the adapter 16 on the tray T, and then returned to the standby position F. When the replacement is completed in this way, the tray T is moved to the feeding position H by the release of the first stopper 17, and stopped by the second tray stopper 18. The package P on the tray T is unrolled by the suction mouth 34 while being rotated in the yarn unwinding direction by the driving roller 32 at the exit position H for a predetermined time. The yarn end Y that is spouted and continues from the package P to the suction mouth 34 is guided upward by the yarn guide lever 35, and is wound around the upper end of the adapter 16 by rotating the package P in the winding direction by the drive roller 32. The yarn end Y is cut by the cutter 39. When the lead-out processing is completed in this way, the second tray stopper 18 is released, and the package P is placed in the double twister 1
Will be transported to the unit.

On the other hand, when the chuck 40 of the residual thread removing device 31 holds the lower end of the core tube B and receives the core tube B from the arm 19, the core tube B is pushed down by the pusher 43 and the residual thread 30 is removed. For example, the residual yarn 30 is cut by the rotary cutter 41, falls down, and is supplied to the core tube receiver 5 at the carry-in end of the core tube return conveyor 3 via the chute 44.

The core tube B is the vertical portion 3a of the core tube return conveyor 3.
Then, it is discharged from the carry-out end through the horizontal portion 3b and introduced into the core tube introducing port 50 of the core tube stocker 7 through the chute 51. The introduced core tube B is temporarily stopped by an upright stopper 53 to adjust its posture horizontally, and when the optical sensor 55 detects the core tube B, the stopper 53 falls and the core tube B
Are rolled and stored in the passage 52. Then, when a core tube request signal is issued from the doffing carriage 47 which is doffing in the compound yarn winding machine 2, the core tube outlet 56 of the passage 52 is provided.
The core tube B in (1) is extruded onto the core tube supply conveyor 49 by the pusher 58, and the core tube B is supplied to the doffing carriage 47 via the core tube supply conveyor 49.

[0026]

In summary, according to the present invention, the core tube discharged from the double twister is automatically returned to the compound thread winding machine by the core tube returning conveyor provided between the double twister and the compound thread winding machine. be able to.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a core tube returning system according to the present invention.

FIG. 2 is a plan view of a package exchange station in a double twister.

FIG. 3 is a schematic front view of FIG.

FIG. 4 is a side view of the yarn end winding portion shown in FIG. 2.

5 is a perspective view of the residual yarn removing device shown in FIG. 2. FIG.

FIG. 6 is a perspective view of a compound yarn winding machine.

FIG. 7 is a schematic cross-sectional view of a core tube stocker in the yarn winding machine.

[Explanation of symbols]

 1 double twister 2 compound yarn winder 3 conveyor B core tube

Claims (1)

[Claims] 1. A core tube returning system comprising a conveyor for returning the core tube discharged from the double twister to the compound yarn winding machine between the double twister and the compound yarn winding machine.