JPH04106372U - spinning equipment - Google Patents

Abstract

(57) [Summary] [Purpose] Separate and spread the rear ends of the non-twisted fiber bundle introduced from the entrance of the guide member support, which is provided with a guide member whose tip protrudes downstream. In a spinning device that manufactures yarn by winding the trailing end of the fibers around a fiber bundle, this technology improves yarn twisting efficiency by preventing air from flowing back toward the inlet side.
Reduce loss fibers. [Structure] A guide member support 3 is provided with a guide member 6 whose tip protrudes downstream in its fiber bundle passage 14, and the fiber rear end of the fiber bundle that exits the draft device introduced from the entrance thereof is separated. It consists of a member 5a for opening fibers, and a rotating body 5 which has an air vent hole 8 communicating with the outside from an enlarged diameter portion 5a formed in the fiber bundle passage and relatively rotates the fiber bundle and the rear end of the separated and opened fibers. There is.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This idea is based on a guide section that has a guide member inside that projects toward the downstream. The trailing ends of the untwisted fiber bundle introduced from the entrance of the material support are separated and opened. This invention relates to a spinning device that manufactures yarn by winding the fiber trailing end around a fiber bundle.

0002

[Conventional technology]

A guide member support is provided with a guide member whose tip protrudes downstream. The rear end of the untwisted fiber bundle introduced from the mouth is separated and opened, and the rear end of the fiber is The applicant has already proposed several spinning devices that produce yarn by winding it into bundles. has been done.

0003 As an example, the air vent hole 24b in the spinning device shown in FIG. 2 is removed. There is. This device is a nozzle that applies swirling airflow to the fiber bundle exiting the draft device. a nozzle block 22 with 23 and a rotating spindle 2 with a fiber bundle passage 25 4 and a guide member support fixed within the nozzle block 22 and having a fiber bundle passage 27. body 26 and a guide member support 26 that protrudes with its tip toward the spindle inlet 24a. The attached guide member 28 is arranged inside the casing 21.

0004

[Problem that the idea aims to solve]

In the conventional spinning device described above, the swirling airflow from the nozzle 23 causes the fibers to be Negative pressure is generated within the bundle passage 25, and air flows within the fiber bundle passage 25 toward the inlet side. The airflow blows out the fibers that are about to enter the fiber bundle passage 25, causing the twisting This causes the fibers to become loose and cause loss of fibers.

[0005] This idea prevents the backflow of air to the fiber bundle entrance side in such spinning equipment. It is intended to.

[0006]

[Means to solve the problem]

In order to achieve the above purpose, the spinning device of this invention has a tip that protrudes downstream. A guide member supporter in which a guide member is provided in the fiber bundle passage, and A member that separates and opens the rear ends of the fiber bundles that have exited the introduced draft device, and a fiber bundle. The expanded diameter part formed in the passage has an air vent that leads to the outside, and the fiber bundle and the fibers that have been separated and opened. It consists of a rotating body that rotates the rear end of the fiber relative to each other.

[0007]

[Effect]

In the spinning device configured as described above, the fiber bundle exiting the draft device is The fiber bundle is drawn in from the entrance of the guide member support and guided into the fiber bundle passage of the rotating body. So The rear end of the fiber bundle is separated and opened, and the fiber bundle is separated and opened by a rotating body. The rear ends of the fibers rotate relative to each other, and most of the fibers are wound spirally to create a real twist. It becomes a thread. At this time, the air in the expanded diameter part of the rotating body is discharged from the air vent hole by centrifugal force. The air is drawn into the rotating body, and air is sucked in from the inlet of the rotating body.

[0008]

【Example】

A first embodiment of the spinning device of this invention will be described with reference to FIG.

[0009] This spinning device consists of a back roller, a middle roller with an apron, and a front roller. It is located next to the draft part consisting of a roller, and is located inside the upstream casing 1. a guide member support 3 having a guide member 6 therein, and a downstream casing. It consists of a spinning nozzle 4 fixed to the spinning nozzle 2 and a rotor 5 surrounding the spinning nozzle 4. ing.

0010 The guide member support 3 has a fiber bundle passage 14 inside, and has pores bored in its inner wall. A pin-shaped guide member 6 is inserted therethrough. The guide member 6 is bent from the middle, The tip is placed in the center of the fiber bundle passage 14 so that the tip is in a free state, which will be described later. It faces the entrance of the cylindrical portion 4a of the spinning nozzle 4.

[0011] The guide member 6 has a diameter smaller than the diameter of the inlet of the cylindrical portion 4a of the spinning nozzle 4. The tip is formed with a smooth curve.

0012 In FIG. 1, the tip of the guide member 6 is located at a position slightly inside from the entrance of the cylindrical portion 4a. This state is the most preferable, and the yarn produced is also the most phosphorescent. It has an appearance similar to that of green thread. However, depending on the conditions, it may separate from the inlet end face. It is also possible to produce a thread with an appearance similar to that of a ring thread. I can do that. These yarns are comparable in strength to ring yarns.

[0013] The guide member 6 prevents the propagation of twist in the yarn forming process, which will be described later, or It acts as a so-called pseudo-core that temporarily replaces the cardiac fiber bundle, and the conventional air This prevents the formation of untwisted core fiber bundles that appear conspicuously in type bound spun yarns, effectively reducing the number of wrapped fibers. It functions to form threads by squeezing.

[0014] The spinning nozzle 4 has a cylindrical part 4a with a small diameter on the upstream side and a nozzle part with a large diameter on the downstream side. 4b, and a fiber bundle passage 10 is formed through the center of the spinning nozzle 4. The center of this passage 10 and each center of each casing 1, 2 are aligned with the running path of the fiber bundle. are located on the same straight line.

[0015] Inside the downstream casing 2, there is a hollow space between the nozzle part 4b of the spinning nozzle 4 and the nozzle part 4b of the spinning nozzle 4. An air reservoir 11 is formed. The nozzle portion 4b communicates with the air reservoir 11 and has a fiber bundle passage therethrough. Four nozzle holes 7 are formed downstream of the passage 10 and oriented tangentially to the air. An air hose 13 is connected to the reservoir 11 through a hole 12. Direction of nozzle hole 7 is set to be the same as the rotational direction of the rotor 5.

[0016] Compressed air supplied from the hose 13 flows into the air reservoir 11 and then passes through the nozzle hole 7. The fiber is ejected from the nozzle part 4b into the fiber bundle passage 10, and gives rotation to the yarn auxiliary. , it flows into the hollow parts of casings 1 and 2 from the nip point of the front roller. A suction air flow is generated to suck the fiber bundle into the guide member support 3 from the inlet. .

[0017] The rotor 5 is for applying the main twist to the fiber bundle, and serves as a cylindrical part 4a of the spinning nozzle. It has a bowl-shaped opening chamber 5a on the upstream side of the opening. In this opening chamber 5a, a nozzle Due to the inflow of air into the casing 1 due to the effect of the air flow ejected from the hole 7, The fiber is separated from the fiber bundle, but the rear end of the fiber is subjected to the centrifugal force of rotation of the rotor 5. The fibers are opened radially outward. The opening part rotates in this state, and the thread advances. As it goes, it wraps around the fiber bundle to form a real twisted thread. In addition, in the opening chamber 5a , several air vent holes 8 are formed through it in the radial direction, and as the rotor 5 rotates, The air in the opening chamber 5a is discharged to the outside by centrifugal force, and the front roller An air flow is generated that flows into the hollow part of the casing 1 from the nip point of the casing 1. child This will further increase the air flow flowing into the spinning nozzle 4, which will cause the fiber opening to increase. This leads to a reduction in fiber loss and an improvement in twisting efficiency.

[0018] Further, the rotor 5 is surrounded by three rollers 9 and is circumscribed by bearings. So One of them is a drive roller, which is directly rotated by a belt (30,000 rpm). It is possible to obtain a much higher rotation speed of 80,000 to 100,000 rpm compared to the previous version. this Rotating the rotor 5 at high speed improves the twisting efficiency of the yarn and increases the strength of the yarn. It is possible to achieve high-speed spinning of 100 to 200 m/min. Wear.

[0019] Next, the yarn manufacturing process using the spinning apparatus of this embodiment will be explained.

[0020] The fiber bundle is drafted by the draft device and sent out from the front roller. The air is drawn into the device by the air flow sucked from the inlet of the id member support 3. However, before the fiber bundle is sent out from this front roller, a suction (not shown) is installed. The tip of the pipe is brought into contact with the outlet of the nozzle part 4b, and the fiber bundle is sucked into the spinning nozzle 4. be done.

[0021] The yarn passed through the spinning nozzle 4 and sucked into the suction pipe is It is introduced into the splicing device by the movement of the pipe, and likewise by the suction mouth. The yarn is spliced with the yarn on the package side that has been introduced.

[0022] The peripheral speed of the delivery roller provided downstream of the exit of the spinning nozzle 4 is the same as that of the front roller. The speed of the fiber bundle passing through this device during spinning is set slightly higher than the circumferential speed of the roller. I try to maintain tension at all times.

[0023] The fiber bundle flows into the casing 1 by the action of the air flow ejected from the nozzle hole 7. Effects of the air flow and the discharge air flow from the air vent hole 8 due to the centrifugal force of the rotation of the rotor 5 Due to the air flow flowing into the opening chamber 5a, the air is drawn into the spinning nozzle. 4. Then, due to the action of the swirling airflow from the nozzle hole 7, it is slightly twisted. It will be done. At this time, due to the presence of the guide member 6, the fiber bundle is It is impossible to locate within the space occupied by the material 6. Therefore, all fibers are The trailing end of the fiber is located around the fiber member 6, and the rear end of the fiber is exposed to the action of the incoming air flow from upstream. It is separated from the fiber bundle depending on the purpose, and is attached to the inner wall of the opening chamber 5a by the rotation of the rotor 5. The fibers extend outward along the line, are opened, and gradually wrap around the fiber bundle as the yarn progresses. It becomes a thread.

[0024] As mentioned above, according to the device of this embodiment, the twist that is trying to propagate upstream is guided. Most of the fibers become wrapped fibers because they are blocked by the member 6.

[0025] Next, a second embodiment will be described with reference to FIG. 2.

[0026] The basic configuration of this spinning device has already been applied for, and As in the example, it is placed next to the draft part. The details are omitted, but the The basic configuration includes a nozzle 23 that applies swirling airflow to the fiber bundle exiting the draft device. a nozzle block 22, a rotating spindle 24 having a fiber bundle passage 25, and a nozzle block 22 having a fiber bundle passage 25; a guide member support 26 fixed within the Zuru block 22 and having a fiber bundle passage 27; , protrudes with the tip toward the spindle inlet 24a and is attached to the guide member support 26. The guide member 28 is arranged inside the casing 21, and the spindle 24 is circumscribed by three rollers 29, one of which is a driving roller. driven at high speed by the roller.

[0027] In addition to the above basic configuration, this spinning device has a An enlarged diameter portion 25a having a large diameter is formed in the downstream fiber bundle passage 25, and the portion is communicated to the outside. An air vent hole 24b is formed. Air vent hole of rotor 5 in previous embodiment 8, the air expands from the air vent hole 24b due to the centrifugal force of the rotating spindle 24. Air within the diameter portion 25a is exhausted. Therefore, due to the existence of the air vent hole 24b, On the contrary, some air is drawn from the rotating spindle inlet 24a due to the air discharged from the rotating spindle inlet 24a. You will be breathing in air. Therefore, the thread inside the enlarged diameter portion 25a noticeably interferes with the air flow. It rotates with a large balloon without being disturbed, improving twisting efficiency. Also, floating Since the fibers are also sucked into the rotating spindle 24, loss fibers are also reduced.

[0028] Finally, a third embodiment will be described with reference to FIG.

[0029] The basic configuration of this spinning device has already been applied for, and the above two As in the previous embodiment, it is placed next to the draft part. I will omit the details. , its basic structure includes a guide member support 33 inside which a guide member 34 is protruded. a fiber bundle introduction cylinder 32 and a rotating spindle 3 with an inlet facing the guide member 34 side. 5 and the fibers ejected from the spindle inlet 35a side and guided from the fiber bundle introducing cylinder 32. A nozzle block 35 that applies a swirling airflow to the fiber bundle, and a fiber bundle introduction cylinder that applies the swirling airflow to the fiber bundle. 32 side and guide the air flow guide wall 36 to be discharged from around the outlet. The spindle 35 is arranged within the housing 31, and the spindle 35 is connected to three rollers 37. Enclosed and circumscribed bearing, driven at high speed by one of the drive rollers . Note that 38 is a nozzle that jets out a swirling airflow.

[0030] In addition to the above basic configuration, this spinning device also includes a casing of the rotating spindle 35. An enlarged diameter portion 35b with an enlarged diameter of the fiber bundle passage 39 is formed at a suitable location outside the fiber bundle passage 31. An air vent hole 35c communicating with the outside is formed in the portion. Similarly, the rotating speed The air in the enlarged diameter portion 35b is discharged from the air vent hole 35c by the centrifugal force of the handle 35. It will be done. Due to the presence of the air vent hole 35c, it is pulled by the air discharged from there and rotates. On the contrary, some air will be sucked in from the spindle inlet 35a. Therefore, The thread inside the enlarged diameter part 35b rotates with a large ballooning motion without being hindered by noticeable airflow. This improves the twisting efficiency. In addition, floating fibers are also sucked into the rotating spindle 35. The amount of fiber loss also decreases.

[0031]

[Effect of the idea]

This idea is structured as explained above, so the following be effective.

[0032] In other words, the blown air from the fiber bundle passage entrance of the rotating body has a negative effect on the formation of yarns. Not only can air flow be eliminated, but also suction air flow can be generated. Ru. Therefore, the yarn twisting efficiency can be improved and loss fibers can be reduced. Can also be done.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing a first embodiment of a spinning device of this invention.

FIG. 2 is a sectional view showing a second embodiment of the spinning device of the invention.

FIG. 3 is a sectional view showing a third embodiment of the spinning device of this invention.

[Explanation of symbols]

3 Guide member support 5 Rotor 5a Opening room 6 Guide member 8 Air vent hole 14 Fiber bundle passage of guide member support 24 Rotating spindle 24b Air vent hole 25 Fiber bundle passage of rotating spindle 25a Expanded diameter part 26 Guide member support 27 Fiber bundle passage of guide member support 28 Guide member 33 Guide member support 34 Guide member 35 Rotating spindle 35b Expanded diameter part 35c Air vent hole 39 Rotating spindle fiber bundle passage

Claims (1)

[Scope of utility model registration request] Claims: 1. A guide member support having a guide member whose tip protrudes downstream in its fiber bundle passage, and a guide member support body that separates and opens the rear end of the fiber bundle that has exited a draft device introduced from the inlet of the guide member supporter. A spinning device comprising a spinning member and a rotary body that has an air vent that communicates with the outside from an enlarged diameter portion formed in a fiber bundle passage and relatively rotates the fiber bundle and the rear end of the separated and spread fibers.