JPH04118465U - spinning equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] To replace the high-pressure swirling airflow that causes a lot of fiber loss, which was used as a means of twisting open-end fiber bundles, a mechanical method that is completely different from conventional mechanical methods is used. is adopted to produce spun yarn. [Structure] A cylindrical casing 2 having a through hole 2a in the middle,
A hollow rotating spindle 3 having a twisting part 3c arranged therein and giving rotation to the fibers at a position corresponding to the through hole 2a.
, a guide member 7 with its tip facing the spindle inlet 3a, and members (4, 5) that generate airflow from the through hole 2a toward the spindle inlet 3a.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This idea allows the untwisted short fiber bundles drafted by the drafting device to be carried by the airflow. A spinning device that produces yarn by mechanically applying rotation during the process of turning it into an open-end yarn. It is related to.

0002

[Conventional technology]

The applicant first developed a pneumatic spinning device as shown in FIG. 3 to produce real twisted spun yarn. , and has already filed a separate application.

0003 The device includes a nozzle 16 that applies a swirling airflow to the fiber bundle exiting the draft device. The nozzle block 15 has a fiber bundle passage 18, and has a drive roller 19 and the like. A spindle 17 that is rotated by a moving device (it does not need to be rotated) and a nozzle Guide member support 20 fixed within lock 15 and forward to spindle inlet 17a. A guide member 21 that protrudes toward the end and is attached to the guide member support 20. It is something that will become true.

0004

[Problem that the idea aims to solve]

In the above-described spinning device, spinning is performed by the swirling airflow ejected from the nozzle 16. Since the yarn must be twisted, the pressure of the swirling airflow is quite large. Must. Also, for this reason, the air discharged from the swirling airflow relief hole 22 At the same time, a significant amount of useful fiber that could be reused is wasted.

[0005] This idea replaces the conventional mechanical method using high-pressure swirling airflow, which causes a lot of fiber loss. This is a method of producing spun yarn by twisting it by a mechanical means that is completely different from the step. The purpose is to provide a pneumatic spinning device.

[0006]

[Means to solve the problem] In order to achieve the above object, the spinning device of this invention has a cylinder having a through hole on its circumferential surface. a shaped casing, and rotation is applied to the fibers disposed therein at positions corresponding to the through holes. A hollow rotating spindle with a twisting part and a tip facing the spindle inlet. the guide member, and generates an air flow from the through hole toward the spindle inlet side. It consists of several members.

[0007]

[Effect]

In the spinning device configured as described above, the fiber bundle exiting the draft device is The front ends of all the fibers are drawn into the interior through the through holes of the casing, and the front ends of the fibers are From around the material, it is guided into the spindle by the fiber bundles that are forming into threads. The rear end of the fiber is separated into individual fibers by the twisting section of a spindle that rotates at high speed. and rotation is given. As the thread runs, the rear end of the fiber is shaped into a thread. The yarn is wound spirally around the fiber bundle that is being formed to form a real twisted spun yarn.

[0008]

【Example】

An embodiment of the spinning device of this invention will be described with reference to FIGS. 1, 2, and 4.

[0009] This spinning device consists of a back roller, a middle roller with an apron, and a front roller. Figure 1 shows the draft device's flap. The Rontro roller 1 and the spinning device are shown.

0010 This spinning device consists of a cylindrical casing 2 having an axially long elongated hole 2a in the middle. A nozzle block having a hollow rotating spindle 3 arranged in the section and an air jet nozzle 5 4 and a guide portion fixed to a guide member support 6 that covers the end of the casing 2. It is made of material 7. The positional relationship between the draft device and the cylindrical casing 2 is shown in Fig. 3. It looks like this.

[0011] The spindle 3 is rotatably supported within the casing 2 via a bearing 8. A hollow pulley 9 is inserted into the outer periphery of the pulley. The hollow pulley 9 Suspended along the outer periphery of the spindle 3 is a unit for rotating the spindle 3 at high speed. Drive belt 10 is in contact. The spindle 3 drive method is Anything is possible, such as surrounding it with three rollers and using a circumscribed bearing.

0012 A fiber bundle passage 11 is formed through the center of the spindle 3. The center and each center of casing 2 are both located on the same straight line that coincides with the running path of the fiber bundle. It is location. The outer diameter of the inlet 3a of the spindle 3 is sufficiently small, and the inlet 3a The part following 3b is a conical part 3b whose outer diameter increases toward the downstream side and a twisted part 3b that follows. Section 3c. This twisted portion 3c is located at a position that coincides with the elongated hole 2a of the casing 2. It can act on the rear end side of the fiber led to the spindle inlet 3a to impart rotation. It can be of any shape, for example, formed in the axial direction as shown in Figure 1. A cylindrical shape with a plurality of holes 3c' formed around it as shown in Fig. 2. You can raise things such as

[0013] The nozzle block 4 has a spindle inserted into the spindle inlet 3a side of the casing 2. It is fixed with a small gap 12 between it and the opening 3a. Therefore, the spindle inlet 3a The side facing is concave in a trumpet shape corresponding to the conical portion 3b. Also, the nozzle A fiber bundle passage 13 is formed through the center of the block 4, and the fiber bundle passage 1 3 has a nozzle 5 opening facing in the opposite direction to the spindle inlet 3a, and an air reservoir. Low pressure air is supplied from an air supply source (not shown) via 14. This air flow is Fiber bundle supplied from the long hole 2a of the casing 2 to the nip point of the front roller 1 A suction air flow is generated that carries the air to the spindle inlet 3a side. Therefore, the nozzle 5 As long as the spindle is facing in the opposite direction to the inlet 3a, the airflow generated will be free from swirling and non-circulating. Either rotation is fine. Alternatives to generating suction airflow by such means Then, connect a suction pipe to the guide member support 6 side and suck air from there. The fiber bundle may also be transported by using the fiber bundle.

[0014] At the center of the guide member support 6 is a groove extending into the fiber bundle passage 13 of the nozzle block 4. , the base end of the pin-shaped guide member 7 whose tip faces the spindle inlet 3a is fixed. Ru. In addition, several air holes 6a are provided around the guide member fixing portion of the guide member support 6. is formed.

[0015] The guide member 7 has a diameter smaller than the passage diameter of the spindle inlet 3a. The tip thereof enters the inside of the passage 11 slightly from the spindle inlet 3a.

[0016] In the spinning device configured in this way, the front roller of the draft device The fiber bundle that has exited the fiber bundle from the nozzle 5 is passed through the elongated hole 2a into the case by the action of the air flow ejected from the nozzle 5. drawn into the gap 12 within the thing 2. The front ends of all fibers in the fiber bundle are connected to the guide section. From around the material 7, the fibers are drawn into the spindle 14 by the fiber bundles that are being formed into threads. It will be destroyed. In addition, the rear end side of the fiber is twisted by the twisting part 3c of the spindle 3 rotating at high speed. The fibers are separated into open-end state, and the tip of the guide member 7 is Rotation is given around the center. Therefore, as the yarn runs, the rear end side of the fiber The yarn wraps in a spiral around the fiber bundle that is forming, forming a real twisted spun yarn. . At this time, the guide member 7 temporarily replaces the central fiber bundle during the yarn forming process. It acts as a so-called pseudo-core, which is noticeable in conventional air-bound spun yarn. This function prevents the formation of untwisted core fiber bundles and virtually forms yarns only from the wrapped fibers. I am doing a lot of work.

[0017]

[Effect of the idea]

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

[0018] In other words, the yarn has an extremely large amount of wrapped fibers and is comparable to ring yarn in terms of appearance and strength. In addition to being able to produce Instead of a rotating airflow, the twisting part of the rotating spindle twists the open-end fibers. Spun yarn is produced by twisting and twisting, which contributes to energy saving. This reduces fiber loss and is very economical.

[0019] In addition, by controlling the rotation speed of the spindle, the number of twists of the spun yarn can be freely changed. can be done.

[Brief explanation of drawings]

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

FIG. 2 is a sectional view showing an example of a spindle.

FIG. 3 is a sectional view of a spinning device as a prior example.

FIG. 4 is a diagram showing the positional relationship between the draft device and the cylindrical casing.

[Explanation of symbols]

2 Casing 2a Through hole (long hole) in casing 3 Rotating spindle 3a Rotating spindle inlet 3c Twisting part of rotating spindle 4 Nozzle block 5 nozzle 7 Guide member

Claims (1)

[Scope of utility model registration request] Claim 1: A cylindrical casing having a through hole on its circumferential surface;
a hollow rotating spindle having a twisting part disposed therein to rotate the fibers at a position corresponding to the through hole; a guide member disposed with its tip facing the spindle inlet; and a side from the through hole to the spindle inlet. A spinning device consisting of a member that generates an air flow towards.