JPH04127271U - Spinning nozzle - Google Patents

Abstract

(57) [Summary] [Purpose] The yarn sent out from the front roller and sucked into the first nozzle of the binding spinning nozzle is passed through the suction section in the small gap provided between the first nozzle and the second nozzle. To obtain a spinning nozzle that smoothly transfers to a second nozzle without being affected by [Structure] A spinning nozzle in which first and second nozzles each having a pressurized air jetting hole that jets compressed air toward a yarn passage tube on a virtual centerline are arranged in series with the same virtual centerline, A sucker that generates a suction air flow is provided in the second nozzle, and the sucker acts only at the start of spinning.
A suction force was created in the second nozzle to smoothly transfer the yarn from the first nozzle to the second nozzle.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention combines drafted fiber bundles in a spinning nozzle, that is, a binding spinning device. This relates to a nozzle that performs the twisting process unique to bundle spinning.

0002

[Conventional technology]

In the binding spinning device, as shown in FIG. 2, a draft device is formed by a spinning nozzle 4 in which a first nozzle 1 and a second nozzle 2, which generate swirling airflows in opposite directions, are connected in series with a small gap 3. Spinning is performed in which the yarn Y supplied from the front roller 5 is twisted. The yarn passage tube 6 in the first nozzle 1 is provided with a compressed air jet hole 7 obliquely toward the virtual center line _L1 of the yarn passage tube 6 and in the tangential direction of the yarn passage tube 6, so that the compressed air can be jetted out. By jetting compressed air from the hole 7 into the yarn passing tube 6, a swirling suction airflow is generated in the yarn passing tube 6, and the yarn Y is sucked into the yarn passing tube 6 from the suction opening 9 of the yarn introduction tube 8. .

0003 Further, the yarn passage tube 10 of the second nozzle 2 also has a compressed air jet hole 11 in the tangential direction of the yarn passage tube 10. is provided to generate a swirling airflow within the yarn passage tube 10. The above-mentioned compressed air jet hole 7 and pressure The swirling direction of the air jet hole 11 is reversed, and the swirling airflow causes the first and second nozzles 1 to , 2, the direction of ballooning occurring in the fiber bundle is opposite.

0004 At this time, the air flow generated in the second nozzle 2 swirls along the inner peripheral surface of the yarn passage tube 10. As a result, the yarn Y also comes into contact with the inner circumferential surface of the yarn passing tube 10 and turns around to produce wrapped fibers. to be accomplished.

[0005] A small gap 3 is provided between the first nozzle 1 and the second nozzle 2 as described above, and the Suction is installed to prevent the compressed air ejected from one nozzle 1 from being supplied to the second nozzle 2. It has a structure in which a part 12 is provided to smoothly exhaust the compressed air from the first nozzle 1. . Therefore, at the start of spinning, the yarn sent out from the front roller 5 is passed through the first nozzle 1. When the yarn is suctioned and further transferred to the second nozzle 2, the yarn is suspended in the small gap 3. Under the action of the suction section 12, the thread flows smoothly from the first nozzle 1 to the second nozzle 2. A phenomenon was observed in which the liquid was not supplied and was sucked into the suction section 12.

[0006]

[Problem that the idea aims to solve]

This idea allows the yarn sent out from the front roller and sucked into the first nozzle to Smoothly flows into the second nozzle without being affected by the suction part in the gap. The purpose is to obtain a spinning nozzle that can transition to

[0007]

[Means to solve the problem]

The first and second parts are equipped with a pressurized air outlet that blows out compressed air toward the yarn passage tube on the virtual center line. In a spinning nozzle in which nozzles are arranged in series with the same virtual center line, A sucker is provided in the second nozzle to create a suction air flow.

[0008]

[Effect]

In the spinning nozzle of the present invention, a sucker is provided in the second nozzle, and the spinning star The suction force is activated in the second nozzle only when the yarn is drawn into the first nozzle. Allows smooth transition from the first nozzle to the second nozzle.

[0009]

【Example】

An embodiment of the spinning nozzle of the present invention will be described below with reference to the drawings.

The structure of the first nozzle 22 and second nozzle 23 in the spinning nozzle 21 of the present invention is the same as that of the conventional bound spinning nozzle. However, in the spinning nozzle 21 of the present invention, as shown in FIG. 1, the first nozzle 22 and the second nozzle 23 are arranged in series with the same virtual center line _L2 . A sucker 24 is provided at the yarn exit portion of the nozzle 23.

The sucker 24 forms a yarn passage 25 in its central portion, and is attached to the yarn outlet portion of the second nozzle 23 in a coaxial arrangement with the yarn passage tube 26 of the second nozzle 23. The compressed air outlet 27 is provided with a compressed air jet hole 27 facing in the direction of travel of the thread traveling along the line and facing in an oblique direction converging on the virtual center line L ₂ . 28 is an electromagnetic valve that supplies and stops pressurized air to the yarn passage 25 via the air supply pipe 29.

Therefore, at the start of spinning, the yarn supplied from the front roller 30 of the drafting device is affected by the swirling suction airflow in the first nozzle 22, and the yarn is moved between the first nozzle 22 and the second nozzle 23. When the yarn reaches the gap 31, the solenoid valve 28 is opened at the same time as spinning starts, and compressed air is jetted diagonally into the yarn passage 25 of the sucker 24 through the air pipe 29, thereby creating a suction air flow in the second nozzle 23. As a result, the yarn end that has reached the small gap 31 is sucked through the inlet of the second nozzle 23 without being affected by the action of the suction part 32 provided in the small gap 31. When a timer (not shown) confirms that a predetermined period of time has elapsed since the solenoid valve 28 was opened, or a sensor (not shown) confirms that the yarn has been supplied to the second nozzle 23, the solenoid valve 28 is immediately opened. 28 is closed, the supply of compressed air to the sucker 24 is stopped, and only the action of the opposite direction swirling airflow in the second nozzle 23 is applied to the yarn to produce a bound spun yarn _Y1 .

[0013] In the embodiment described above, the thread passage 25 of the sucker 24 is controlled by opening and closing the electromagnetic valve 28. Although the explanation has been made assuming that compressed air is blown out through the air supply pipe 29, the air supply pipe 29 can be replaced with an exhaust pipe. The compressed air outlet 27 is used as an air suction hole, and the solenoid valve 28 is opened and closed to generate sucker. Of course, it is possible to create a structure in which a suction force is generated in the thread passage 25 of the thread 24. In this case, the air suction hole runs in the opposite direction to the compressed air jet hole 27, that is, inside the second nozzle 23. The direction must be opposite to the direction in which the thread travels.

[0014] Note that the sucker 24 is not necessarily separate from the second nozzle 23, but may be formed integrally with the second nozzle. There is no problem even if it is.

[0015] Also, at the same time as the sucker 24 starts operating, the suction section 23 stops operating, and the sucker 24 starts operating. If the suction section 23 is configured to start operating at the same time as the operation of the first This is preferable because the yarn can be transferred more smoothly from the nozzle 22 to the second nozzle 23.

[0016]

[Effect of the idea]

As described in detail above, the spinning nozzle of the present invention is directed toward the yarn passing tube on the virtual center line. The first and second nozzles, each equipped with a pressurized air outlet that ejects pressurized air, are aligned so that their virtual center lines are the same. In the spinning nozzle arranged in series, a suction air flow is provided in the second nozzle. Since it is equipped with a soccer ball that causes generates a suction force in the second nozzle to move the thread from the first nozzle to the second nozzle. This allows for a smooth transition between the first and second nozzles, unlike conventional methods. There is no possibility that the thread will migrate to the suction part due to the small gap between the threads.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of a spinning nozzle according to the present invention.

FIG. 2 is a longitudinal cross-sectional view of a conventional spinning nozzle.

[Explanation of symbols] 1,22 First nozzle 2,23 Second nozzle 3,31 Small gap 4,21 Spinning nozzle 6, 10, 26 Thread passage tube 7, 11, 27 Pressure air outlet 24 Soccer 25 Thread passage 28 Solenoid valve

Claims (1)

[Scope of utility model registration request] Claim 1: A spinning nozzle in which first and second nozzles each having a pressurized air jetting hole for spouting compressed air toward a yarn passing tube on a virtual centerline are arranged in series with the same virtual centerline. . A spinning nozzle, characterized in that a sucker is provided in the second nozzle to generate a suction air flow.