JPH04240226A - Spinning device - Google Patents

Abstract

PURPOSE:To improve productivity and reduce production cost by directly forming a twist yarn from a spinning device without using a doubling machine or twisting machine. CONSTITUTION:A fiber bundle is introduced through a front roller 1 into a casing 2 and guided into the inlet of each spindle 8 by jet air stream of a nozzle 11 and simultaneously force for separating from the fiber bundle is given to a fiber constituting the above-mentioned fiber bundle positioned on the circumference of a guide member 16. When the rear end of the fiber is released from the above-mentioned front roller 1, fiber is wound in spiral state around the fiber bundle traveling through a conical part of spindle 8 while turning on the inlet of the abovementioned spindle 8 several times by action of pressurized air turning stream to form a spun yarn and the spun yarn is passed through fiber bundle passage 9. Thus, spun yarn is spun out one by one from each spinning unit 4 and simultaneously when the spun yarn is pulled out from a delivery roller 17 by rotation of rotator 3 inserting plural spinning units 4, spun yarn spun from the above-mentioned spinning units 4 is mutually twisted to form twisted yarn.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spinning device that continuously forms and twists yarn.

0002

[Prior Art] Conventional spinning devices include a ring type, an open-end type, and the previously proposed spindle that has a fiber bundle passage and rotates or remains stationary, and a needle-like guide that projects with its tip toward the entrance. Some devices are known that consist of a member and an air injection nozzle that applies a swirling air flow near the inlet of the spindle to separate the fiber ends from the fiber bundle.

0003

[Problems to be Solved by the Invention] Conventional spinning devices only produce spun yarn; in order to obtain twisted yarn, either several spun yarns are combined in a doubling machine and then twisted together in a twisting machine. Alternatively, the yarns are directly twisted together using a twisting machine without doubling. In particular, the double twister has the drawback that the size of the yarn supply package is limited and productivity is low. Therefore, the manufacturing cost of twisted yarn using spun yarn is high.

[0004] An object of the present invention is to provide a spinning device that can continuously perform spinning and twisting of yarn in one device.

[0005]

[Means for Solving the Problems] In order to achieve the above object, a spinning device of the present invention receives a fiber bundle carried by an air flow and spins a spun yarn, and comprises a plurality of spinning yarns revolving around each other's center. It consists of a single element.

[0006]

[Function] In the spinning device configured as above, the fiber bundles are carried by air current, so the revolution of each spinning unit is not transmitted to the fiber bundle supply source, and the fiber bundles are endlessly sent to each spinning unit. supplied to Then, the spun yarns spun from each spun unit are twisted together to form twisted yarn by the revolution of each spun unit.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a spinning apparatus according to the present invention will be described with reference to FIGS. 1 and 2.

[0010] This spinning device is disposed next to a draft part consisting of a back roller, a middle roller having an apron, and a front roller 1, and includes a casing 2, a rotating body 3 disposed inside the casing 2, and a rotating body 3. It consists of two to three spinning units 4 fitted into a body 3.

The rotating body 3 is rotatably supported within the casing 2 via a bearing 5, and is driven by a belt 6 running along the spinning devices arranged in parallel.

A spindle 8 is inserted into the spinning unit 4 with an air discharge gap 7 therebetween, and a fiber bundle passage 9 is formed within the spindle 8 . Of course, at a suitable location in the air discharge gap 7 there is a part connecting the spindle 8 and the body of the spinning unit 4.

The outer diameter of the inlet of the spindle 8 is sufficiently small, and the portion following the inlet is a conical portion whose outer diameter increases toward the downstream side.

An air reservoir 10 is formed on the inlet side of the spinning unit 4. The spinning unit 4 is formed with four air injection nozzles 11 which communicate with the air reservoir 10 and are oriented downstream at a distance from the inlet of the spindle 8 and tangentially to the air discharge gap 7. The air reservoir 10 has a hole 1 in the rotating body 3.
2 and an air hose 14 is connected through a hole 13 in the casing 2. 15 is an oil seal for preventing air leakage.

Compressed air supplied from the hose 14 flows into the air reservoir 10 and then passes through the nozzle 11 into the air discharge gap 7.
The air is ejected to create a high-speed swirling airflow near the inlet of the spindle 8. At the same time, this air flow generates a suction air flow that flows from the nip point of the front roller 1 into the hollow part of the casing 2.

Further, one end of a pin-shaped guide member 16 is fixed to the inlet side of the spinning unit 4, and its tip is in a free state and faces the inlet of the spindle 8. The guide member 16 has a diameter smaller than the entrance passage diameter of the spindle 8, and has a smoothly curved tip. In FIG. 1, the tip of the guide member 16 is connected to the spindle 8.
The case is shown in which the yarn is located slightly inside the passage 9 from the entrance of
It has an appearance that is most similar to ring thread. however,
Depending on the conditions, it is also possible to take a position away from the entrance end face, and it is possible to manufacture a thread that has an appearance similar to a ring thread. These yarns are comparable in strength to ring yarns.

The guide member 5 functions as a so-called pseudo core, which prevents the propagation of twist during the yarn forming process or temporarily takes the place of the central fiber bundle, and is conspicuous in conventional pneumatic bound spun yarns. This serves to prevent the formation of a non-twisted core fiber bundle and virtually form a yarn using only the wound fibers.

Yarn is produced using this spinning device as follows.

The fiber bundle drafted by the draft device and sent out from the front roller is guided into the inlet of each spindle 8 by the action of the jet air flow from the nozzle 11, and is guided into the inlet of each spindle 8 by the compressed air flow swirling near the spindle inlet. As a result, it is slightly twisted in the same direction. At this time, the presence of the guide member 16 makes it impossible for the fiber bundle to be located within the space occupied by the guide member 16. Therefore, all the fibers will be located around the guide member 16 and will be directly exposed to the airflow and will be separated from all around the entire periphery, and the fibers located inside will also be exposed to the airflow and removed from the fiber bundle. Receives the force of separation. However, when the tip of the fiber is at the entrance position of the spindle 8, the tip is subjected to false twisting as described above, and therefore is not easily separated. Also, the rear end of the fiber is connected to the front roller 1
It has not been separated yet because it is nipped by the nozzle 11 or is located far from the nozzle 11 and is not affected by air much. The rear end of the fiber leaves the front roller and comes to a position where it receives a strong air flow from the nozzle 11, and is separated from the fiber bundle for the first time. The separated fiber trailing end wraps around the inlet part of the spindle 8 one or more times under the action of the air flow, and then wraps around the conical part of the spindle 8 a little and extends outward.

Further, the fiber bundle continues to run downstream, and the trailing end of the fiber is gradually pulled out while turning around the fiber bundle, the fibers are wound spirally around the fiber bundle, and the fiber bundle becomes a spun yarn. The fiber bundle passes through the fiber bundle passage 9.

In this way, spun yarn is spun out one by one from each spinning unit 4. During this spinning process, the rotating body 3 into which each spinning unit 4 is fitted is rotating, so that the delivery roller 1
When pulled out from the spun yarn 7, each spun yarn becomes a twisted yarn.

Next, a second embodiment of the spinning apparatus of the present invention will be described with reference to FIG.

This spinning device is disposed next to the draft part, and includes a casing 18, a rotating body 19 disposed adjacent to the casing 18, a wire mesh roller 20 supported at the center of the rotating body 19, Two to three rotating rollers 2 are also supported by the rotating body 19 and surround the wire mesh roller 20.
1 and a spinning unit consisting of a fiber guide 22.

The rotating body 19 has a cylindrical shape with bottom surfaces 23 and 24 on both sides, and a wire mesh roller 20 and a rotating roller 21 are rotatably supported between the bottom surfaces 23 and 24, respectively. A hole 25 is formed in one bottom surface 23, and a fiber guide 22 is provided next to the hole 25 along the wire mesh roller 20.

Numerous small holes are provided on the circumferential surface of the wire mesh roller 20, and a hose 26 for sucking air is connected to one end of the wire mesh roller 20.

A slit 27 extending along the axial direction of the wire mesh roller 20 is formed on the side of the fiber guide 22 facing the wire mesh roller 20 . Air sucked through the hose 26 generates an air current that carries the fibers into the casing 18 through the holes, slits 27, and holes 25 in the wire mesh roller 20.

The rotating roller 21 is installed with a slight gap from the wire mesh roller 20. The rotating direction of the rotating roller 21 and the wire mesh roller 20 is the same direction, and the fiber bundle that is attracted from the slit 27 to the surface of the wire mesh roller 20 by the air flow sucked through the holes of the wire mesh roller 20 is It is rotated in the valley. That is, the fiber bundle is twisted to become a thread. 28 is the bottom surface 2 of the rotating body 19
This is the passage hole for the spun yarn provided in 4.

In this way, one spun yarn is spun from each spinning unit, but since the rotating body 19 supporting each spinning unit is rotating during this spinning process, when it is pulled out from the delivery roller, Each spun yarn is a twisted yarn that is twisted together.

Finally, a third embodiment of the spinning apparatus of the present invention will be described with reference to FIG.

This spinning device includes a casing 29 having an inlet 30 which serves as an inlet for a drafted fiber bundle and an outlet for a finished spun yarn, and two to three rotors 31 housed within the casing 29. , their driving devices and more.

The drive device for the rotor 31 includes a drive gear 32
A small gear 34 is interposed between the external gear 33 and a non-rotating external gear 33, and each rotor 31 is attached to the shaft of each small gear 34.
is fixed. When the drive gear 32 rotates, the pinion 3
4 rotates on its own axis and also revolves along the external gear 33. Therefore, each rotor 31 revolves while rotating.

The fiber bundles supplied into each rotor 31 from the inlet 30 of the casing 29 are twisted into threads by the rotation of the rotor 31, but since each rotor 31 is revolving, the fiber bundles are fed into the inlet 30 of the casing 29. When pulled out, each spun yarn becomes a twisted yarn.

[0033]

[Effects of the Invention] Since the present invention is constructed as described above, it produces the following effects.

That is, since it is now possible to obtain twisted yarn directly from the spinning device without using a doubling machine or a twisting machine,
The productivity of twisted yarn made from spun yarn is significantly improved, and manufacturing costs can be significantly reduced.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a first embodiment of a spinning device according to the present invention.

FIG. 2 is a schematic cross-sectional view of a first embodiment of the spinning device of the present invention.

FIG. 3 is a perspective view of a second embodiment of the spinning device of the present invention.

FIG. 4 is a perspective view of a third embodiment of the spinning device of the present invention.

[Explanation of symbols]

2 Casing 3 Rotating body 4 Spinning unit 18 Casing 19 Rotating body 20 Wire mesh roller 21 Rotating roller 22 forming the spinning unit Fiber guide 29 forming the spinning unit Casing 32 Rotor forming the spinning unit

Claims (1)

[Claims] 1. A spinning device comprising a plurality of spinning units that receive fiber bundles carried by air currents, spin out spun yarn, and revolve around each other's centers.