CN101368305A - An air-jet vortex spinning device capable of producing core-spun yarn - Google Patents

Abstract

The invention provides an air-jet vortex spinning device capable of producing core-spun yarn, which comprises a vortex chamber, a spindle-shaped yarn-drawing tube leading into the vortex chamber, a vortex tube connected with a fixed support, and an air jet placed in the vortex tube. The hole is characterized in that a frusto-conical or cylindrical fiber and core wire guiding component is provided at the entrance of the vortex tube. The invention has the advantages that the short fiber bundles can evenly wrap the core yarn, the quality of the produced core yarn is uniform, and the core yarn is completely covered with short fibers, thereby improving the wear resistance of the core yarn.

Description

An air-jet vortex spinning device capable of producing core-spun yarn

technical field

The invention relates to an air-jet vortex spinning device, in particular to an air-jet vortex spinning device capable of producing core-spun yarns.

Background technique

The date of application is Oct.11, 2000, the application number is US6370858B1, and the patent named CORE YARN PRODUCTION METHOD AND APPARATUS discloses a device and method for producing core-spun yarn. Wherein, the drawn staple fiber bundle is fed into a nozzle device and a hollow guide shaft body together with a core wire. The jet air is ejected from the nozzle hole, forming a vortex air flow in the nozzle, and the short fiber bundle is spirally wrapped on the core yarn under the action of the vortex air flow to form a core-spun yarn with real twist.

However, in the above method, the core filament and the short fiber bundle are fed into the nozzle through the guide hole at the nozzle inlet, so that the position and tension of the core filament in the core-spun yarn are unstable. Therefore, the short fiber bundles cannot wrap the core yarn evenly, and the quality of the core-spun yarn produced has large inhomogeneity. .

Contents of the invention

The object of the present invention is to provide an air-jet vortex spinning device capable of uniformly wrapping the core yarn with the staple fiber bundle.

In order to achieve the above object, the present invention provides an air-jet vortex spinning device capable of producing core-spun yarns, which includes a vortex chamber, a spindle-shaped yarn-drawing tube leading into the vortex chamber, a vortex tube connected with a fixed support, and a set In the air jet hole in the vortex tube, there is a channel in the center of the spindle-shaped yarn guide tube, and a conical or cylindrical fiber and core wire guide part is provided at the entrance of the vortex tube. A needle-shaped core wire guide tube is provided at the top, and a gap with a width of 1.5-2 mm is provided between the entrance of the spindle-shaped yarn guide tube and the needle-shaped core wire guide tube.

Further, the needle-shaped core wire guide tube is penetrated with a core wire through hole. The fiber and core wire guiding part is composed of a fiber helical guiding surface and a core wire guiding hole running through its center; one end of the core wire guiding hole is connected to the core wire through hole.

A fiber input channel is provided between the fiber spiral guide surface and the inner wall of the vortex tube; the needle-shaped core wire guide tube and the inlet of the spindle-shaped yarn guide tube are on the same axis.

The helical direction of the fiber helical guiding surface is the same as the direction of the vortex air flow in the vortex tube, and the helical angle is 50-70 degrees.

The cross-section of the core wire through hole or the core wire guide hole is one of circular, elliptical and square. The axis of the core wire guiding hole forms an included angle β of 0-20 degrees with the axis of the forming fiber and the core wire guiding part.

Description of drawings

Fig. 1 is a schematic sectional view of an air-jet vortex spinning device capable of producing core-spun yarn provided by the present invention in a spinning state;

Fig. 2 (a) is the three-dimensional schematic diagram of fiber and core wire guiding part;

Fig. 2 (b) is the side view of fiber and core wire guiding part;

Fig. 3 is a schematic cross-sectional view of another air-jet vortex spinning device capable of producing core-spun yarn provided by the present invention in a spinning state;

Fig. 4 is a three-dimensional schematic diagram of the fiber and core wire guiding part corresponding to Fig. 3;

Fig. 5 is a side view of another fiber and core wire guiding part;

Fig. 6 is a three-dimensional schematic diagram of the core wire through hole and the core wire guide hole of the fiber and the core wire guiding part having a square cross-section;

Fig. 7 is a three-dimensional schematic view of the core wire through hole and the core wire guide hole of the fiber and core wire guiding component having an elliptical cross-section.

Detailed ways

The present invention will be further described below in conjunction with the examples.

Example 1

As shown in Fig. 1, Fig. 2 (a) and Fig. 2 (b), a kind of vortex chamber 1 provided by the present invention, the spindle shape drawing tube 2 that passes into the vortex chamber 1, is connected with fixed support 3 The vortex tube 4 and the air jet hole 5 placed in the vortex tube 4, the center of the spindle-shaped yarn-drawing tube 2 is provided with a passage 6, and it is characterized in that, the entrance of the vortex tube 4 is provided with a conical or cylindrical fiber and The core wire guide part 7 is provided with a needle-shaped core wire guide tube 8 at the top of the fiber and core wire guide part 7, between the entrance 9 of the spindle-shaped yarn guiding tube 2 and the needle-shaped core wire guide tube 8 A gap x with a width of 2 mm is provided. The needle-shaped core wire guide tube 8 is penetrated with a core wire through hole 10 .

The fiber and core wire guiding part 7 is composed of a fiber spiral guiding surface 11 and a core wire guiding hole 12 penetrating through its center; one end of the core wire guiding hole 12 is connected to the core wire through hole 10 .

A fiber input channel 13 is provided between the fiber spiral guide surface 11 and the inner wall of the vortex tube 4; the needle-shaped core wire guide tube 8 and the inlet 9 of the spindle-shaped yarn guide tube 2 are on the same axis.

The helical direction of the fiber helical guide surface 11 is the same as the direction of the vortex air flow in the vortex tube 4, and the helical angle is 70 degrees. An included angle α of 70 degrees is formed between the upper trimming edge 13 and the lower trimming edge 14 of the fiber spiral guiding surface 11 . The cross section of the core wire through hole 10 and the core wire guide hole (12) is circular. The axis of the core wire guiding hole 12 forms an included angle β of 0 degree with the axis of the forming fiber and the core wire guiding part 7 .

Its working principle is: 1 to 2 core filaments can be introduced into the spinning device through the core filament guide hole 12 and the needle-shaped core filament guide tube 2 . Since the needle-shaped core wire guide tube 8 is on the same axis as the axis of the spindle-shaped yarn-drawing tube 2 and is close to the entrance 9 of the yarn-drawing tube, the core wire 15 can be accurately introduced into the spindle-shaped yarn-drawing tube 2 . The fiber bundle 16 outputted by the drafting device is sucked by the suction air flow at the inlet of the vortex tube 4 and smoothly transported through the fiber input channel 13 . Since the cross-section of the fiber input passage 13 decreases in an approximately constant ratio and is smoothly twisted, the fiber bundle 16 is bundled during delivery. Then the fiber bundle 16 bypasses the needle-shaped core wire guide tube 8, during which the needle-like core wire guide tube 8 prevents the twist of the yarn formed downstream from being uploaded, and facilitates the separation of fibers in the fiber bundle 16. The fiber front end in the fiber bundle 16 that enters the vortex chamber 1 is drawn into the yarn drawing tube 2 by the fiber bundle that is forming the yarn, and the tail end is separated from the fiber bundle 16 due to the effect of the rotating vortex, forming a free end 17, and Lodging on the spindle-shaped yarn-drawing pipe cone 18, it rotates with the rotation of the eddy current. Because the fiber bundle 16 bypasses the needle-shaped core wire guide tube 8, the core wire 15 is positioned at the center of the fiber bundle 16, and the rotating fibers are evenly twisted and wrapped around the core wire 15 to form a similar ring with real twist. Core-spun yarn 19 for spindle characteristics. The formed yarn 19 is output through the channel 6 at the center of the yarn drawing tube 2, and is wound on the groove drum through the yarn drawing roller to form a package.

Example 2

As shown in FIG. 3 and FIG. 4 , the difference between embodiment 2 and embodiment 1 is that the fiber and core wire guiding component 7 is cylindrical. Other structures and their working principles are the same as those in Embodiment 1.

Example 3

As shown in FIG. 5 , the difference between Embodiment 3 and Embodiment 1 is that the axis of the core wire guide hole 12 forms an included angle β of 20 degrees with the axis of the forming fiber and the core wire guide member 7 . Other structures and their working principles are the same as those in Embodiment 1.

Example 4

As shown in FIG. 6 , the difference between Embodiment 4 and Embodiment 1 lies in that the cross-sections of the core wire through hole 10 and the core wire guide hole 12 are square. Other structures and their working principles are the same as those in Embodiment 1.

Example 5

As shown in FIG. 7 , the difference between Embodiment 5 and Embodiment 1 lies in that the cross-sections of the core wire through hole 10 and the core wire guide hole 12 are elliptical. Other structures and their working principles are the same as those in Embodiment 1.

Claims (8)

1. the air injection air vortex spinning apparatus that can produce cladded yarn, comprise minor air cell (1), be passed into the spindle shape doffing tube (2) in the minor air cell (1), the vortex tube (4) that is connected with fixed support (3) and place air flow jetting hole (5) in the vortex tube (4), the center of spindle shape doffing tube (2) is provided with passage (6), it is characterized in that, be provided with truncated cone-shaped or columniform fiber and core silk guiding part (7) in the porch of vortex tube (4), top at fiber and core silk guiding part (7) is provided with needle-like core silk guide wire (8), is provided with the gap x that width is 1.5～2mm between the inlet (9) of spindle shape doffing tube (2) and needle-like core silk guide wire (8).

2. a kind of air injection air vortex spinning apparatus of producing cladded yarn as claimed in claim 1 is characterized in that, is penetrated with core silk through hole (10) in the described needle-like core silk guide wire (8).

3. a kind of air injection air vortex spinning apparatus of producing cladded yarn as claimed in claim 2 is characterized in that, described fiber and core silk guiding part (7) are made up of fiber spiral-guide face (11) and the core silk guide hole (12) that runs through its center; Described core silk guide hole (12) one ends are connected with core silk through hole (10).

4. a kind of air injection air vortex spinning apparatus of producing cladded yarn as claimed in claim 3 is characterized in that, is provided with fiber input channel (13) between described fiber spiral-guide face (11) and vortex tube (4) inwall; Described needle-like core silk guide wire (8) is on the same axis with the inlet (9) of spindle shape doffing tube (2).

5. a kind of air injection air vortex spinning apparatus of producing cladded yarn as claimed in claim 3 is characterized in that, the hand of spiral of described fiber spiral-guide face (11) is identical with the direction of vortex tube (4) mesoscale eddies air-flow.

6. a kind of air injection air vortex spinning apparatus of producing cladded yarn as claimed in claim 3 is characterized in that, going up side cut (13) and cutting edge down of described fiber spiral-guide face (11) becomes the angle α of 50～70 degree between (14).

7. a kind of air injection air vortex spinning apparatus of producing cladded yarn as claimed in claim 3 is characterized in that, the cross section of described core silk through hole (10) and core silk guide hole (12) is a kind of in circular, oval, the square.

8. a kind of air injection air vortex spinning apparatus of producing cladded yarn as claimed in claim 3 is characterized in that, the axis of described core silk guide hole (12) becomes 0～20 angle β that spends with the formation fiber with the axis of core silk guiding part (7).

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