JPH0238274A - Thread end pick finding device - Google Patents

Abstract

PURPOSE:To improve a success rate of pick finding a half-wind bobbin, rarely supplied, by providing a bobbin discriminating means, discriminating full-wind and half-wind bobbins, and a beater device, beating a thread end, in a thread end pick finding device which draws out the thread end from a fine spinning bobbin. CONSTITUTION:A full-wind fine spinning bobbin 6 passes through a fine spinning machine side conveying path 1, when this full-wind fine spinning bobbin 6 is supplied, it is driven rotating in a release direction 8 in a station B, while a punch wind 7 is released, and a thread is cut. Next, the bobbin 6 is supplied to a station C, being driven rotating in a winding direction 12. A thread end is wound to a thread layer surface, sucked to a suction mouth 14 in a station D, sucked and inserted in a bobbin roof hole 18 on a station E. A half-wind bobbin, when it is supplied to the station C, is discriminated by a bobbin discriminating means 20 transmitting a signal to a beater device 40. The beater device 40 beats out a thread end from a thread layer surface of the half-wind bobbin supplied to the station D.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a yarn end pulling device for pulling out yarn ends from the surface of the yarn layer of a spinning bobbin. and half-ball bobbins are transported together,
The present invention relates to a yarn end pulling device for separating the yarn end from the surface of the yarn layer of the half bobbin before pulling out the half bobbin.

[Prior Art] Generally, the spinning bobbin discharged from the spinning machine is taken into a winder to wind up the yarn and form a winding paragauge, and the spinning machine and the winder transport the spinning bobbin. They are connected to each other by a bobbin transport path.

When the spinning bobbins are transported through this bobbin conveyance path, it is necessary to prevent the bobbins from interfering with each other and the thread ends of each bobbin from getting entangled. The end of the thread is wound around the top or bottom of the bobbin and punch-wound.

Therefore, when the spinning bobbin discharged from the spinning machine is supplied to the winder, the punch winding wound around the upper or lower part of the bobbin is released at the entrance side of the winder, and the end of the released thread is placed on the bobbin. A yarn end pulling device is incorporated that is inserted into the hole. Therefore, a winding package is formed by pulling out the yarn ends that have not been picked out by the yarn end pulling device in the winder.

Therefore, in the yarn end pick-up device, an annular closed group circulation path is formed, and in the middle of the circulation path, the spinning bobbin is taken out, and if a mistake is made, the missed bobbin is returned to the take-out position. Then, the meddling motion was made again.

[Problems to be Solved by the Invention] By the way, the spinning bobbins discharged from the spinning machine include full bobbins that have a normal winding amount and half-bobbins that have a smaller winding amount than the full bobbins. Among the empty bobbins discharged by the winder, there are half-bobbins with residual yarn.
Such a half-ball bobbin is supplied to a winder via a yarn end outlet device.

Therefore, the full bobbin and the half bobbin are mixedly supplied to the yarn end outlet device through the common annular bobbin conveyance path.

Therefore, it is necessary to suck out the thread end of the half-ball bobbin and pull it out, and in the case of half-ball bobbins, the thread end is often wedged into the thread waste or entangled with the thread waste. For this reason, conventional suction means may not be able to separate the thread end of the half-bobbin from the thread waste, and the half-bobbin that has been mis-seed must be re-seeded. In addition, when half-ball bobbins are continuously supplied, this can be predicted in advance, the yarn ends are separated from the surface of the yarn layer, the yarn ends are sucked, and the yarn ends can be taken out.

Therefore, when a half-ball bobbin is mixed with a full bobbin and fed infrequently, unlike when a half-ball bobbin is fed continuously, it must be drawn out only by suction means, and this licking must be performed at least once. The problem was that there was a high probability of making a mistake in saying something.

The present invention has been devised to effectively solve the above problems.

SUMMARY OF THE INVENTION An object of the present invention is to provide a yarn end picking device that can increase the success rate of picking out half-ball bobbins that are continuously or infrequently supplied.

[Means and effects for solving the problems] The present invention provides a bobbin pick-up device that pulls out yarn ends from the yarn layer surfaces of a groove-wound bobbin and a half-bobbin that move on a common bobbin conveyance path and inserts them into a bobbin hole. a bobbin identifying means for distinguishing between the full bobbin and the half-weld bobbin; and when the identifying means identifies that the bobbin is the half-weld bobbin, the bobbin ends are separated from the surface of the yarn layer of the half-welded bobbin. It is configured to detect the continuous or infrequently supplied half-ball bobbin and remove the thread end from the thread waste of the half-ball bobbin.

[Example] Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows a device for taking out spinning bobbins discharged from a spinning machine at the intake side of a winder.

As shown in the figure, a conveyance R1 extending from the spinning machine and a conveyance path 2 extending from the winder are formed on the bobbin intake side of the winder, and these conveyance paths 1.2 are connected via a closed group circulation path 3. As shown in FIGS. 1 and 2, this circulation path 3 is constituted by a rotating disk 5 having L-ray holding grooves 4 facing outward at equal intervals and opening in an arc shape. A spinning bobbin 6 discharged from the spinning machine is engaged and held in the tray holding groove 4 of the rotating disk 5, and the end of the yarn is wound around the lower part of the spinning bobbin 6. A punch winding 7 is applied.

In addition, eight stations are formed at approximately equal intervals along the circulation path 4, and the circulation path 4 and the spinning machine side conveyance path 1
The spinning bobbin 6 is first taken into the station A that connects the two.

On the downstream side of this station A, stations B and C are used to take out the yarn end of the punch-wound spinning bobbin 6.
. Station G to intervene,
H is interposed.

Specifically, station B is provided with a friction roller 9 that rotates the spinning bobbin 6 in the unwinding direction 8, and is also provided with a cutter device 10 that releases and cuts the punch winding 7 of the spinning bobbin 6.

In station C, a roller 11 is provided, and this roller 11 rotates the spinning bobbin 6 in the winding direction 12, and also pulls out the yarn connecting the spinning bobbin 6 and the cutter device 10 to cut the yarn. The yarn is wound around the yarn surface of the spinning bobbin 6.

At station D, the free yarn end is sucked,
A yarn end suction release device 13 is provided to release the yarn end, and this device 1
3 is a roller 1 that rotates the spinning bobbin 6 in the unraveling direction 8
4, and above the roller 14 there is provided a suction pipe 15 which is greatly curved and extends to face above the station E, and a slit 16 is formed along this suction pipe 15. This slit 16 is configured to guide the yarn end above station E.

Further, above the station E, a cutting device 18 is provided which cuts the thread end 17 drawn out along the suction mouth 15 into a predetermined length, and the cut thread end 16 is placed into the bobbin hole 19. A suction means (not shown) for suction and insertion is provided.

Therefore, the suction mouth 15, the cutting device 18, and the suction means (not shown) constitute a substantial extraction device.

In particular, in the present invention, the circulation path 3 is provided with a bobbin identification means 20 for identifying the full bobbin a supplied to the circulation path 3 and the half bobbin b having a smaller winding amount.
In this embodiment, as shown in FIGS. 2 and 3,
A bobbin identification means 20 is provided at station C, and this identification means 20 has a swinging arm 21 supported so as to be swingable in the horizontal direction, and is spaced apart from the swinging arm 21 to transmit ON and OFF signals. It has a proximity switch 22.

Specifically, as shown in FIG. 2, from the yarn layer 23 to the yarn tube 24
An L-shaped swinging arm 21 with a tip end 25 bent along the thread tube 24 is formed, and the swinging arm 21 is supported at its center. At the rear end portion 27 which is swingably supported by the body 26 and extends horizontally behind the body 26, springs 28 and 29 are extended on both left and right sides to restrict the swing thereof. 29 is connected to the fixation system 30.31. Therefore, the tip end 25 of the swing arm 21 is always urged to be directed toward the axis of the spinning bobbin 6 that is not supplied to the station C. Further, a proximity switch 22 is located directly below the rear end 27 of the swing arm 21 with a predetermined clearance, and the rear end 27 of the swing arm 21 is located directly above this switch 22. Sometimes it sends out signals.

Further, on the downstream side of the bobbin identifying means 20, a tassel device 40 is provided for knocking out the yarn end from the surface of the yarn layer of the half bobbin b.

This beater device 40, as shown in FIGS.
It is mainly composed of a contact piece 41 that knocks out the yarn end from the thread, and this contact piece 41 is formed, for example, by a brush made of rubber or hair material.

Further, this contact piece 41 is attached along a support shaft 43 that is inclined (θ) with respect to an imaginary line 42 that stands parallel to the spinning bobbin 6. It is designed to be rotationally driven by a rotational driving means.

That is, a chase portion 44 whose diameter is gradually reduced upward is formed at the upper part of the yarn layer 23 of the spinning bobbin 6, and this chase portion 44 has a tip portion of a contact piece 41 inclined along the inclination angle θ. are in contact with each other in a detachable manner.

Therefore, when the proximity switch 22 detects that the half bobbin b is supplied to the station C, the contact piece 41 is driven to rotate when the half bobbin b is supplied to the station D, so as to strike the chase portion 44 repeatedly. It is composed of .

Next, the operation of the present invention will be explained.

As shown in FIG. 1, under normal conditions, a full spinning bobbin a is supplied to station A through the spinning machine side conveyance path 1.
This fully wound bobbin a is rotated in the unwinding direction 8 at station B, and at this time, the punch winding 7 is released and the thread is trimmed.

Next, the fully wound bobbin a is supplied from the station B to the station C, and the fully wound bobbin a is supplied at the station C.
The winding is rotationally driven in direction 12, and the yarn ends are wound around the surface of the yarn layer. This unwound thread end is sucked into the suction mouth 14 at station D, guided onto station E, and after thread trimming, is suctioned and inserted into the bobbin top hole 18.

Therefore, at station C, the swinging arm 2.7 is always repelled by the yarn layer 23 of the full bobbin a supplied thereto, and since it is detected that the full bobbin a has been supplied, the beater device 40 Do not hit the layer surface repeatedly.

Therefore, when half-bobbin b is continuously supplied to station C, as shown in FIG.
4, the tip 25 of the swinging arm 21 is directed, and the rear part 27 of the swinging arm 21 is positioned above the proximity switch 22, and it is identified that there is a half-ball bobbin b"c. At the same time, the detection of the half-ball bobbin b is transmitted to the beater device 40.Then, the beater device 1
0 rotates the contact piece 41 to knock out the yarn end from the surface of the yarn layer of the chase portion 44 of the half-ball bobbin b supplied to station D.

The yarn end that has been knocked out and separated from the surface of the yarn layer in this manner is sucked by the suction mouth 15 and inserted into the bobbin top hole 19 at station E.

In addition, if a half-bobbin b is rarely included in a full bobbin a, station C will distinguish between a full bobbin a and a half-bobbin b for each spinning bobbin 6 supplied thereto. When the spinning bobbin 6 is a fully wound bobbin a, the swinging arm 21 is repelled by the yarn layer 23, so the beater device 40 does not operate. Further, when the spinning bobbin 6 is a half-ball bobbin b, the fact that the half-ball bobbin b has been supplied is transmitted to the beater device 40, and the yarn of the chase portion 44 of the half-ball bobbin b is sent as in the case of continuous supply of the half-ball bobbin b. In order to ensure that the yarn ends are knocked out from the surface of the layer, the spinning bobbin 6 is individually wrapped into a fully wound bobbin a.
This is to distinguish between the half-ball bobbin b and the half-ball bobbin b, and to separate the yarn end from the surface of the yarn layer of the half-ball bobbin b. The yarn end can be pulled out, the success rate of pulling out can be improved, and even if the half-ball bohin b is continuously supplied, a special control method as in the conventional method is not required.

In this embodiment, the bobbin identification means 20 is provided at station C, and the beater device 40 is provided at station E on the downstream side thereof. 20 and the beater device 40 may be provided.

In this case, for example, as shown in FIG. 6, the bobbin identifying means 20 may be positioned upstream to sandwich the spinning bobbin 6 supplied to station D, and the beater device 40 may be positioned downstream. become.

In addition, in this embodiment, the swing arm 21 and the proximity switch 22
Although the bobbin identifying means 20 is constructed mechanically, the bobbin identifying means 20 is not limited to this, and may be constructed using a photoelectric sensor that detects the presence or absence of yarn waste on the half-ball bobbin b.

[Effects of the Invention] In summary, according to the present invention, a spinning bobbin is distinguished into a groove-wound bobbin and a half-ball bobbin, and when it is identified as a half-ball bobbin, a beater device is used to distinguish the spinning bobbin from the surface of the yarn layer of the half-ball bobbin. Since the yarn end is knocked out, the success rate of picking out the half-ball bobbin is improved, and a special control method is not required even when the half-ball bobbin is continuously supplied.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing a pick-out device according to the present invention, FIGS. 2 and 3 are diagrams mainly showing a bobbin identification means, FIGS. 4 and 5 are diagrams mainly showing a beater device, and FIG. 6 is a diagram mainly showing a beater device. The figure is a plan sectional view showing another embodiment. In the figure, a is a groove-wound bobbin, b is a half-ball bobbin, 19 is a bobbin hole, 20 is a bobbin identification means, and 40 is a beater device.

Claims (1)

[Claims] 1. Distinguish between the full bobbin and the half bobbin in a bobbin extraction device that pulls out the yarn end from the surface of the yarn layer of the full bobbin and the half bobbin moving on a common bobbin conveyance path and inserts it into the bobbin hole. a bobbin identifying means for the bobbin, and when the identifying means identifies that the bobbin is the half-ball bobbin,
A yarn end pulling device comprising: a beater device for beating yarn ends from the surface of the yarn layer of the half-ball bobbin.