JPH055769U - Yarn end device for package cage - Google Patents

Abstract

(57) [Summary] [Purpose] To ensure that the yarn end is peeled off from the surface of the package and can be ejected. [Structure] Nozzle tubes 10 and 11 are arranged in the axial direction of the package 5 close to the package 5, and the nozzle tubes 10 and 11 are arranged.
Is provided with nozzle holes 12 and 13 which are opened in a direction tangential to the surface of the package 5 and in a direction opposite to the rotation direction of the package 5 when the package 5 is rotated in the reverse direction. By this, the yarn end can be surely peeled off from the surface of the package to be ejected.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a device for ejecting a yarn end from a package surface during yarn splicing in an automatic winder or the like.

[0002]

[Prior Art]

 When winding the bobbin thread into the package in the automatic winder, when a thread breakage occurs, the suction nozzle of the thread splicing device sucks the bobbin-side lower thread end and the suction mouth of the package-side upper thread. The yarn ends are sucked, and the suction nozzle and suction mouth are rotated while sucking and gripping each yarn end, and the yarn is spliced by being introduced into the yarn splicing device.

In such a yarn splicing device, in order to suck the yarn end of the upper yarn on the package side with the suction mouth, bring the suction mouth of the suction mouth close to the surface of the package and rotate the package in the reverse direction to rotate the package. The suction air flow from the suction mouth and static pressure were generated on the surface, the yarn end was peeled from the package surface, and suction was performed by the suction mouse.

[0004]

[Problems to be solved by the device]

 In the above conventional device, when the wound yarn has a smooth surface such as a ring spun yarn and the fiber end is not crimped, the yarn end may be entangled with the yarn on the package surface. Since it does not exist, the yarn end can be easily peeled off from the package surface and sucked by the suction air flow of the suction mouth. However, when winding a crimped yarn, such as a woolen yarn, in which the fibers are not parallel to the yarn direction and the crimped yarn is wound up, the yarn end is entangled with the yarn on the package surface, and The yarn end could not be separated from the package surface only with the suction air flow, and a yarn splicing error often occurred.

Therefore, an object of the present invention is to enable the yarn end to be reliably peeled off from the surface of the package and to be ejected.

[0006]

[Means for Solving the Problems]

 In order to solve the above-mentioned drawbacks of the conventional device, the present invention arranges a nozzle tube in the axial direction of the package in the vicinity of the package, the nozzle tube being tangential to the surface of the package and when the package is reversed. The yarn end suction device of the package is configured by providing nozzle holes that open in the direction opposite to the rotation direction of the package, which enables the yarn end to be reliably peeled from the surface of the package and ejected. It is the one that was made.

[0007]

[Action]

 Since the present invention is configured as described above, during yarn splicing, when the suction mouth rotates and approaches the opening to the package surface, the air valve operates and the high pressure air from the high pressure air supply source is supplied to the nozzle tube. It spouts from the nozzle hole. The jetted high-pressure air is jetted in the tangential direction of the package surface, which is opposed to the reversing direction of rotation of the package, so that the yarn end on the package surface is separated from the surface and sucked by the suction mouth.

[0008]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 4, in the automatic winder 1, the yarn 3 of the bobbin 2 fixed below is pressed against the traverse drum 4 and wound into a rotating package to form a package 5. In such an automatic winder, at the time of yarn breakage, the saxion nozzle 7 and the saxophone mouth 8 provided in the yarn splicing device 6 such as a knotter or a splicer are rotated, and the bobbin 2 side bobbin yarn thread is rotated by the saxion nozzle 7. At the same time as sucking and gripping the end, the suction mouse 8 sucks and grips the yarn end of the upper thread on the surface of the package 5, and rotates the suction nozzle 7 and the suction mouth 8 as shown by the chain line in the figure, Is introduced into the yarn splicing device to perform yarn splicing.

As shown in FIGS. 1 and 3, a first nozzle tube 10 is provided in the axial direction of the package 5 at the rear of the contact point between the drum 4 and the package 5, and a first nozzle tube 10 is provided at the front in the same direction. Two nozzle tubes 11 are provided. The first nozzle holes 12, 12, ... of the first nozzle pipe 10 and the second nozzle holes 13, 13, .. of the second nozzle pipe 11 are respectively oriented in the tangential direction of the surface of the package 5 and at the time of yarn splicing. When the package rotates in the reverse direction as shown by the arrow, it is oriented in the direction opposite to the direction of rotation. Further, the first nozzle hole 12 and the second nozzle hole 13 are preferably arranged at positions axially displaced from each other, and are preferably arranged in a staggered manner so that the jetted air flow hits the entire surface of the package. .

When the first and second nozzle tubes 10 and 11 are fixed to the frame of the machine base, etc., the position of the surface in the tangential direction changes according to the diameter of the package, so that the package is When the diameter becomes small, it is appropriate to arrange it so that it becomes tangential to the surface. This can also deal with the fact that the thread end tends to be more difficult to be sucked into the suction mouth when the package has a small diameter. In a normal automatic winder, it is appropriate that the inner diameter of the nozzle tube is about 3 to 4 mm and the diameter of the nozzle hole is about 0.5 to 1 mm.

Both the first nozzle pipe 10 and the second nozzle pipe 11 are connected to a high pressure air supply pipe 15, and the high pressure air supply pipe 15 is connected to a compressor 16 as a high pressure supply source. The high-pressure air supply pipe 15 is provided with an electromagnetic air bubble 17, which is opened / closed by a signal from the control device 18. By installing the limit switch 20 at a position where the suction mouth 8 is pressed by the suction mouth 8 when the sausage mouth 8 is rotated to the package 5 side during splicing, and connecting the output of the limit switch 20 to the control device 18. When the limit switch 20 is pressed by the suction mouth 8, the electromagnetic air bubble 17 is opened by the control device.

In the above structure, when the yarn splicing operation is performed, the suction mouth rotates as described above to bring the opening 21 close to the surface of the package 5, and the suction air acts on the surface of the package. The limit switch 20 is pressed by the rotation of the suction mouth, and the control device 18 opens the electromagnetic air valve 17 in response to the signal, and the high pressure air from the compressor 16 is supplied to the nozzle hole 12 of the first nozzle pipe 10 and the second nozzle pipe. It is ejected from the nozzle hole 13 of 11.

On the other hand, when the yarn splicing operation is performed, the package is also rotated in the direction of the arrow in the figure by the reverse rotation of the drum 4. The high-pressure air from each nozzle hole 12 and 13 is jetted in the direction tangential to the surface of the package and in the direction opposite to the rotating direction of the reversely rotating package, so that the yarn end 22 entwined with the yarn on the surface of the package Is peeled from the surface and suctioned from the opening 21 of the suction mouse 8. At this time, it is necessary to pass the discharged yarn between the first nozzle tube 10 and the traverse drum 4.

As another embodiment, as shown in FIG. 2, the second nozzle tube 11 is attached to the lower surface of the suction mouth 8, and the flexible telescopic tube 19 is connected between the second nozzle tube 11 and the high pressure air supply tube 15. The second nozzle tube 11 is movable together with the suction mouth 8. In the case of this embodiment, the threading work as in the first embodiment is not necessary, which is convenient.

In the above two embodiments, an example using two nozzle tubes is shown. At that time, the nozzle hole 12 of the first nozzle tube 10 and the nozzle hole 13 of the second nozzle tube 11 are It is preferable to dispose them at positions displaced in the axial direction. Only one nozzle tube may be used depending on the type of yarn to be wound.

[0016]

[Effect of the device]

 Since the present invention is configured and operates as described above, even a yarn entangled on the surface of the package can be separated by a high-pressure air jet, and the suction mouth can be reliably gripped by the suction mouth. Therefore, splicing mistakes are reduced and the operating efficiency of the automatic winder is improved.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a side view showing another embodiment of the present invention.

FIG. 3 is a perspective view of an essential part showing an air flow from a nozzle tube according to an embodiment of the present invention.

FIG. 4 is a side view of a winder to which the present invention is applied.

[Explanation of symbols] 1 automatic winder 2 bobbin 3 yarn 4 drum 5 package 6 yarn joining device 7 suction nozzle 8 suction mouth 10 first nozzle pipe 11 second nozzle pipe 12 first nozzle hole 13 second nozzle hole

Claims (1)

Claims for utility model registration: 1. A nozzle tube is arranged in the axial direction of the package in the vicinity of the package, and the nozzle tube has a tangential direction to the surface of the package and a rotation direction when the package is reversed. A yarn end finding device for a package, characterized in that a nozzle hole that opens in a direction opposite to is provided.