JPH0610371U - Spinning equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] To facilitate the necessary processing of a guide member in a spinning device in which fibers are supplied from around a water-supplyable guide member and twisted by a swirling airflow. [Structure] A nozzle block 2 having a nozzle 3 that causes a swirling air flow to act on a fiber bundle that has exited a draft device, a hollow spindle 6 that rotates or is stationary, and a tip that faces the inlet 6a so that water can be supplied from the peripheral side surface. It is composed of a guide member 5.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an apparatus for producing a spun yarn by twisting an untwisted short fiber bundle drafted by a drafting device by causing a swirling air flow to twist the bundle.

[0002]

[Prior art]

 The applicant has proposed that a nozzle block having a nozzle that causes a swirling air flow to act on the fiber bundle that has exited the draft device, a hollow spindle, and a guide member that protrudes toward the inlet of the hollow spindle so that water can be supplied from the distal end. Therefore, we proposed a device for twisting untwisted short fiber bundles by a swirling air flow to produce spun yarn, and filed a separate application.

[0003]

[Problems to be solved by the device]

 Spun yarn is traded in a state where it contains water with an official moisture content of 8.5%, and it is necessary to add water to the yarn in order to increase the yarn strength. For this reason, it is humidified by manufacturing it in a spinning factory that is exposed to high humidity or by putting the manufactured wound package in a moisture absorption chamber. The conventional spinning device described above was developed for the purpose of eliminating a large-scale humidifier for that purpose, and has achieved some results, but it is extremely difficult to form a hole leading to the tip of a thin needle-shaped guide member inside. Difficult to do. In particular, although a fine count yarn is manufactured, the inner diameter of the spindle entrance is very small, and the guide member suitable for it is one layer thinner, so it is almost impossible to provide a hole reaching the tip inside this.

An object of the present invention is to make it possible to easily perform the necessary processing of a guide member in a spinning device that supplies fibers from around a water-supplyable guide member and twists with a swirling airflow. There is.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the spinning device of the present invention has a nozzle block having a nozzle that causes a swirling air flow to act on a fiber bundle exiting a draft device, a hollow or rotating hollow spindle, and a tip directed toward its inlet. It is composed of a guide member that projects and can supply water from the peripheral side surface.

[0006]

[Work]

 In the spinning device configured as described above, the fiber bundle exiting the draft device is drawn into the device by the action of the air flow ejected from the nozzle, and the front ends of all the fibers of the fiber bundle are around the guide member. Then, the fiber bundle is drawn into the yarn and guided into the spindle. At that time, water is added to the fiber bundle from the pores around the guide member. Further, the rear end side of the fiber is inverted from the spindle inlet and separated into each fiber. The separated fibers at the rear end are exposed to the swirling airflow ejected from the nozzle, and as the yarn travels, they are spirally wound around the fiber bundles that are being formed into the yarn, and become a spun yarn of a real twist.

[0007]

【Example】

 The spinning device of the present invention will be described with reference to FIG.

This spinning device is generally equipped with a nozzle block 2 having a nozzle 3 disposed inside a casing 1 following a draft device, and a guide member support 4 having a guide member 5 located at the inlet thereof. And an inlet side of the rotary spindle 6 inserted in the casing 1.

A fiber bundle passage 7 is formed through the center of the spindle 6, the outer diameter of the inlet 6a is sufficiently small, and the portion following the inlet 6a is a conical portion whose outer diameter increases toward the downstream side. 6b.

A portion of the nozzle block 2 that covers the vicinity of the spindle inlet 6 a is a hollow cylindrical chamber 8 having a small diameter along its outer shape, and the upstream side thereof is slightly smaller than the tip diameter of the spindle 6 by the nozzle block 2. It has a large-diameter cylindrical shape. An annular hollow chamber 9 formed in the lower casing 1a and a tangential air escape hole 10 following the hollow chamber 9 are formed in a portion following the hollow chamber 8.

Inside the upper casing 1 b, a hollow air reservoir 11 is formed between the upper casing 1 b and the nozzle block 2. The nozzle block 2 is formed with four air injection nozzles 3 which communicate with the air reservoir 11 and which face downstream slightly away from the inlet 6a of the spindle 6 and which are tangential to the hollow chamber 8. A hose (not shown) is connected to the air reservoir 11 through a hole 12. The direction of the nozzle 3 is set to be the same as the rotation direction of the spindle 6.

The compressed air supplied from the hose, after flowing into the air reservoir 11, is jetted from the nozzle 3 into the hollow space 8 to generate a high-speed swirling airflow in the vicinity of the spindle inlet 6a. After swirling inside the hollow chamber 8, this air flow diffuses outward while swirling gently inside the hollow chamber 9, is guided to the escape hole 10 and is discharged. At the same time, this air flow generates a suction air flow that flows from the nip point of the front roller into the hollow portion of the casing 1.

The guide member support 4 has a cap shape having a fiber bundle introduction hole 13 in an upper portion deviated from the center, and a pin-shaped guide member 5 is fixed to the center.

The guide member 5 projects from the center of the upper portion of the guide member support 4 and has a free end, which faces the inlet 6 a of the spindle 6.

A water guide hole 5a is formed in the center of the guide member 5 excluding the tip portion, and a fine hole 5b communicating with the water guide hole 5a is formed in the periphery. On the other hand, the guide member support 4 is provided with a water conduit 4a communicating with the water conduit 5a, and water is supplied by the hose 19. This is for supplying water to the inside of the yarn to secure the official moisture content (8.5% of the yarn weight) and increasing the yarn strength, and it is possible to mix an oil agent in the water. The diameter of the water guiding hole 5a is preferably as small as 1 mm or less. Instead of mechanically forming the fine holes 5b, the guide member 5 itself may be made of a porous material and the fine holes existing in the material itself may be used.

The spindle drive section is supported inside the bearing casing 14 by an air bearing and driven by an air turbine.

In the air bearing, a cylindrical bush 17 having an air ejection hole 17b is fitted in the bearing casing 14 following the air reservoir 17a, and the bearing casing 14 also has a compressed air supply hole 14c communicating with the air reservoir 17a. Is provided. Reference numeral 18 denotes a cap of the bearing casing 14.

In this air bearing, when compressed air is supplied from a hose (not shown) connected to the compressed air supply hole 14c, the compressed air passes through the air reservoir 17a and the air ejection hole 17b, and the spindle 6 and the bush. The spindle 6 is discharged through a slight gap with the bush 17 and comes into a non-contact state with the bush 17.

In the air turbine, a cylindrical bush 16 having a compressed air supply hole 16a and an air discharge hole 16b opening tangentially in the bearing casing 14 is fitted, and the bearing casing 14 also has a compressed air supply hole 16a or a compressed air supply hole 16a. A compressed air supply hole 14a or an air discharge hole 14b communicating with the air discharge hole 16b is provided, while a plurality of halves for receiving jet air flows on the outer peripheral surface of the spindle 6 corresponding to the opening of the compressed air supply hole 16a. The circular recess 6c is formed.

In this air turbine, when compressed air is supplied from a hose (not shown) connected to the compressed air supply hole 14a, the compressed air passes through the compressed air supply hole 16a, hits the recess 6c of the spindle 6, and the spindle 6 Rotate 6. The airflow that rotates the spindle 6 is discharged through the air discharge holes 16b and 14b.

In the spinning device configured as described above, the fiber bundle that has exited the draft device is drawn into the device by the action of the air flow that is ejected from the nozzle 3, and the front ends of all the fibers of the fiber bundle are From around the guide member 5, the fiber bundle being formed into a yarn is drawn and guided into the rotating spindle 6. At that time, moisture is applied to the fiber bundle from the pores 5b around the guide member 5. The rear end side of the fiber is acted on by the axial component force of the air flow ejected from the nozzle 3 to be reversed from the spindle inlet 6a and separated into each fiber. The separated fibers at the rear end are exposed to the swirling airflow ejected from the nozzle 3, and as the yarn travels, the fibers are spirally wound around the fiber bundle that is being formed into yarn and become a spun yarn of a real twist shape. .

The spindle 6 assists in twisting the yarn, and can be manufactured depending on the yarn even if the spindle does not rotate. Therefore, the spindle 6 does not necessarily have to rotate.

[0023]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects.

That is, a yarn having an extremely large amount of wound fibers, which is comparable to the ring yarn in terms of appearance and tenacity, can be produced, a necessary amount of water can be efficiently added to the yarn, and the spinning property is also improved. In addition to improving the quality, the production cost can be significantly reduced, and since the water can be supplied from the peripheral side surface of the guide member, the necessary processing for the guide member can be easily performed.

[Brief description of drawings]

FIG. 1 is a sectional view of a spinning device of the present invention.

[Explanation of symbols]

 2 Nozzle block 3 Nozzle 5 Guide member 5a Water guide hole 5b Pore 6 Spindle 6a Spindle inlet

Claims (1)

[Scope of utility model registration request] 1. A nozzle block having a nozzle that causes a swirling air flow to act on a fiber bundle that has exited a draft device, a hollow spindle that rotates or is stationary, and a guide member that protrudes with its tip toward the inlet and is capable of supplying water from the peripheral side surface. And spinning equipment.