JPH0244752B2 - SHIJOPATSUKEEJINOITOHASHITORIDASHISOCHI - Google Patents

Description

Detailed Description of the Invention <Industrial Application Field> The present invention relates to a device for taking out the yarn end of the outermost layer of a yarn package, particularly a device for removing the yarn end of the outermost layer of a yarn package wound in a synthetic fiber spinning process. The present invention relates to a yarn end take-out device that is used to take out the yarn ends of a package in advance in order to facilitate the peeling operation in the process of peeling off a predetermined amount of outer layer yarn.

<Prior art> In the synthetic fiber manufacturing process, particularly in the melt spinning process, a yarn package wound on a bobbin is switched to a new bobbin when it is fully wound. In other words, the yarn in the outermost layer of the package has a different or changed quality from the yarn during normal winding. Further, since atmospheric dust and the like adhere to the package during temporary storage until packaging, it is necessary to remove a predetermined length of the outermost layer of the package.

In this case, in order to peel off the yarn of the outermost layer of the package, it is necessary to take out the yarn end of the wound package. Next, this yarn end is gripped and peeled off by a stripping device, but in the past, this yarn end removal was mainly carried out manually.

However, when searching for the yarn end manually, if the yarn end cannot be found immediately by looking at the surface of the package cage, the operator must stroke the surface of the package cage with his/her finger to find the end and take it out, which may cause rough hands of the worker. There were problems such as staining of the package cage due to sweating, etc., and fatigue of the worker due to looking at the details, especially in the case of fine denier, which caused great pain to the worker.

<Background of the Invention> In order to solve these problems, the inventor of the present invention has conducted various studies to automatically take out the ends of the outermost layer of the yarn package as described above using a device. The following was discovered.

In other words, the packages formed in the spinning process are usually conveyed one after another via a conveyor, supported by the pegs of a tray. Most of the yarn ends are concentrated in the area called the overlapped part formed on the outermost layer of the package (this type of overlap is often formed), but the thread ends hang down and are pulled elsewhere. In order to prevent this, it is sometimes done to attach a lubricant to the end of the yarn during winding, thereby fixing the end of the yarn to the surface of the package. However, due to differences in the strength of the oil adhesion, vibrations during conveyance, etc., the adhered parts may come off and the thread ends may get caught elsewhere, become wrapped around the conveyor rollers, or become caught in the package tray coming from behind. . Furthermore, the thread ends caught elsewhere may fall off the twill and wind around the bobbin when the conveyance direction is changed. Furthermore, in case of package cases where the yarn is interrupted (not fully wound) during winding, and which do not have a bunch part, or in cases where the yarn ends are not fixed with oil, the yarn ends often hang down from the surface of the package.

The condition of the yarn end can be roughly divided into the following four types.

In other words, (1) the yarn end is stuck to the bunch part, (2) the yarn end is peeled off and hanging down, (3) the twill is falling on the end surface, and (4) the yarn end is attached to a part other than the bunch part. Something with thread ends.

The object of the present invention is to provide a device that can quickly and reliably take out the thread ends of the outermost layer of the package, which are in various states and have irregular shapes, instead of humans, and facilitate work in the next process. It is something.

<Structure of the Invention> That is, the present invention provides a device for taking out yarn ends on the surface of a yarn package, in which an arm is rotatably held along the outer periphery of the yarn package, and the arm is provided with a yarn suction device. A plurality of suction devices are arranged in parallel in the longitudinal direction of the arm so that their suction ports are located on the yarn package cage side, and a wire mesh is provided at the exhaust end of the yarn suction device to prevent suction yarn from being drawn out. This is a yarn end take-out device for a yarn package.

Hereinafter, the present invention will be explained based on the drawings.

<Example> FIG. 1 is a side view showing an example of the present invention, and FIG. 2 is an enlarged sectional view of the suction device section of FIG. 1. In the figure, 1 is a stand fixed to the machine frame (not shown),
On the pedestal 1, a drive shaft 4 which rotates via a motor 2 and a chain 3 mounted in the pedestal 1 and capable of forward and reverse rotation is supported in the horizontal direction by bearings 5, 5'. 6 and 6' are sprockets that connect the chain 3. A base plate 8 is horizontally attached to the tip of the drive shaft 4 via a bracket 7.
A motor 9 for converting linear motion and a rack 10 connected to a pinion of the motor 9 so as to move vertically (up and down) relative to the base plate 8 are provided thereon. The rack 10 is disposed perpendicular to the axis of the drive shaft 4, and rotates around the axis as the drive shaft 4 rotates. A tubular arm 12 is attached to the tip of the rack 10 in a horizontal direction parallel to the drive shaft 4 via a connector 11, which also serves as a pressure air passage. The suction ports 17 are provided at intervals (not necessarily at equal intervals) such that the suction ports 17 are perpendicular to the axis of the drive shaft 4. The suction device 13 is the third
As shown in the figure, the arms 12 may be provided on both sides or only on one side, and it is preferable that the arms 12 be provided in close contact with each other in the portions corresponding to the bunch winding portions of the package. As shown in FIG. 2, these suction devices 13 are compact and have a general configuration including a compressed air supply hole 14 connected to a compressed air passage, a pressure equalization chamber 15, a compressed air jet hole 16, a suction port 17, an exhaust port 18, etc. However, it is not limited to this.
A major feature of this suction device 13 is that a wire mesh 19 is provided at or near the exhaust port 18 with openings that are large enough to prevent suction threads from flying out. Further, behind the exhaust port 18 of the suction device 13, an exhaust manifold pipe 20 is provided to cover the exhaust port 18 so that the exhaust gas does not blow out linearly backward.
It is designed to be discharged from 1.

22 is a bracket 2 provided on the base plate 8
This is a thread suction device for the end face of the package provided at the tip of the suction device 13 via the suction device 13.

24 is a sensor for detecting the radius of the package attached to the tip of the rack 10 via a bracket 25, and it is preferable to use a light reflection method that does not contact the package, such as a photoelectric switch.

Reference numeral 26 denotes suction devices 13 and 2 provided at the end of the drive shaft 4.
It is a rotary joint for supplying compressed air to the yarn suction device 2, and has an inlet nozzle 27 and an outlet nozzle 28 for compressed air. (not shown)
are connected to supply the necessary compressed air. Incidentally, instead of using such a rotary joint, the connection may be made with a simple coiled hose or the like.

29 is the rotation axis of the arm 12, that is, the drive shaft 4
The yarn packages are held on pegs 31 of a tray 30 so as to coincide with the axis of the yarn, and are sequentially fed by a conveyor or the like.

In an apparatus having such a configuration, for example, as shown in FIG. 1, a yarn package is supported by pegs 31 of a tray 30 placed on a conveyor (not shown) (this may be done by a cart or the like). 29 is sent, it stops at the front position of the device according to the present invention. At this stop position, the axis of the package 29 is aligned with the axis of the drive shaft 4 by a stopper or the like, and at this time the arm 12 is positioned at the top. When the package 29 stops at a predetermined position, the linear motor 9 is activated and the rack 10 begins to move downward. During this movement, when the sensor 24 that detects the radius of the package 29 senses the package 29, the motor 9 is stopped by this signal. At this time, the arm 12 is positioned such that the suction port 17 of the suction device 13 attached to the arm 12 is close to the package 29 at a predetermined distance. Another suction device 22 is arranged close to the end surface of the package 29. Next, the forward/reverse motor 2 drives the base 8 and therefore the arm 1.
2 rotates 1 1/3 turns in the unwinding direction of the yarn.

As a result, the hanging end of the yarn or the yarn that is caught by other yarns during conveyance is torn off and wound around the package cage 29. Thereafter, the solenoid valve for compressed air is activated to supply compressed air to the suction devices 13 and 22, and the yarn end suction operation is started. At almost the same time, motor 2 starts, and this time it moves base 8 in the opposite direction.
Suction device 1 rotated 1/3 and attached to arm 12
3 rotates along the outer peripheral surface of the package, and another suction device 22 attached to a bracket 23 rotates along the end surface of the package. During this rotation, the yarn end is sucked into one of the many suction devices 13 and 22 and ejected with a swirling flow toward the exhaust port 18.
Since the exhaust ports 18 of the suction devices 13 and 22 are covered with a wire mesh 19, the suctioned thread ends are caught by this or are once prevented from passing through, and are entangled here and stored in a rolled-up shape. It turns out. When the arm 12 rotates approximately 1 1/3 turns and returns to its original position, the motor 2
At the same time, the supply of compressed air to the suction devices 13 and 22 is also stopped by the operation of the solenoid valve. Next, the motor 9 is activated, the rack 10 is moved upward, and the arm 12 is separated in the direction opposite to the package and returned to its initial position. Thereafter, the conveyor moves and transports the package 29, but in this case, the tangled yarn ends are pulled out from the suction device that sucks and stores the yarn ends and hangs down from the package 29.

At this time, the yarn end y becomes as shown in FIG.

Although it is more reliable and preferable to provide another suction device for the end surface of the package via the bracket as shown in this embodiment, this is not always necessary. In this case, it is preferable to provide suction devices at positions slightly protruding from both ends of the outer circumferential surface of the package, as this makes it possible to easily capture the thread ends on the end surfaces of the package.

<Effects> As explained above, according to the present invention, the yarn package can capture the yarn end reliably and quickly in any case without touching the yarn package at all, and the captured yarn The edges have the remarkable effect of forming a shape that is extremely easy to work with in the next process.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an embodiment of the present invention, FIG. 2 is an enlarged cross-sectional view of the suction device shown in FIG. 1, and FIG.
FIG. 4, which is a cross-sectional view taken along line A--A in the figure, is a schematic view of a package having yarn ends formed according to the present invention. 2...Motor, 4...Drive shaft, 9...Motor,
10...Rack, 12...Arm, 13, 22...
... Yarn suction device, 17 ... Suction port, 18 ... Exhaust port, 19 ... Wire mesh, 20 ... Exhaust collecting pipe, 29 ...
...Thread pack cage.

Claims (1)

[Claims] 1. A device for taking out yarn ends on the surface of a yarn package, which includes an arm rotatably held along the outer periphery of the yarn package, and a yarn suction device attached to the arm, the suction port of which is attached to the yarn package. Yarn end removal of a yarn package, characterized in that a plurality of yarn suction devices are arranged side by side in the longitudinal direction of the arm, and a wire mesh is provided at the exhaust end of the yarn suction device to prevent suction yarn from being taken out. Device.