A low twist spinning method driven by a spindle or a spinning tube

Abstract

The present invention belongs to the field of textiles, and discloses a low-twist spinning method driven by a spindle or a spun yarn tube. The method consists of two parts: a spinning device and a spinning process. The spinning device includes a twisting disk, a reduction gearbox, and a yarn guide ring. Its characteristics are that the spindle or spun yarn tube is connected to the reduction gearbox, and after being decelerated by the reduction gearbox, the twisting disk and the spindle are driven to rotate in the same direction. The speed of the twisting disk can be changed by adjusting the reduction gearbox. The yarn guide ring is fixed on the spun yarn frame. The present invention utilizes the fiber sliver to come into contact with the twisting disk under the action of the yarn guide ring. Under the action of friction, the fiber sliver forms a false twist between the front jaw and the twisting disk, thereby increasing the temporary strength of the sliver at this stage and improving the spinnability of the low-twist yarn. At the same time, the device is directly driven by the spindle or spun yarn tube, without the need for an external transmission device, and is more energy-saving and environmentally friendly than other false twist devices.

Description

Technical Field

[0001] The invention relates to the technical field of textile engineering, in particular to a low-twist spinning method driven by a spindle or a spun yarn tube. Background Art

[0002] Currently, most textiles on the market are finished with softeners to give them a soft feel. This is not only harmful to human skin but also pollutes the environment. Low-twist yarn, with its soft feel, full body, and low residual torque, is often considered ideal for knitting. Therefore, the most effective method for improving fabric softness is to reduce the yarn twist. However, low-twist yarns also suffer from disadvantages such as frequent ends breakage, low strength, and excessive hairiness, which severely restrict their application. To address these shortcomings of low-twist yarns, false twist devices are often used in spinning. Current false twist devices can be mainly divided into two categories: rotor-type false twist devices (false twist tubes) and friction-type false twist devices. Rotor-type false twist devices, such as those in U.S. Patents US7096655B2 and US6860095B2, consist of a rotor and a transmission mechanism. They generate false twist by rotating the yarn at the same speed. This method is relatively stable but inefficient, making it difficult to piece yarns after yarn breaks. It also requires an external transmission mechanism and consumes a lot of power. Friction-type false twist devices, such as those in CN 1804170A, CN 101643948A, and CN 216514321U, consist of a friction mechanism and a transmission mechanism. The device creates false twist by holding the yarn against the surface of the friction false twist mechanism under tension. The rotation of the false twist mechanism drives the yarn to rotate, creating a false twist. This method offers convenient connection, but requires an external transmission mechanism and consumes significant power. Summary of the Invention

[0003] The present invention aims to provide a low-twist spinning method driven by a spindle or spun yarn tube. Existing false twist devices require an external transmission mechanism, which consumes a lot of power. The present invention connects a twisting disc 1 and a reduction gearbox 2 to the spindle or spun yarn tube, achieving a false twist effect without requiring an external transmission mechanism. Compared to traditional false twist devices, the present invention is more energy-efficient and environmentally friendly.

[0004] To achieve the above objectives, the technical solutions of the present invention are as follows.

[0005] A low-twist spinning method driven by a spindle or a spun yarn tube comprises a twisting disc 1, a reduction gear box 2, and a yarn guide ring 3, characterized in that:

[0006] The spindle or spinning tube is connected to the reduction gearbox 2. After being decelerated by the reduction gearbox 2, it drives the twisting disk 1 to rotate in the same direction as the spindle. Adjusting the reduction gearbox 2 can change the speed of the twisting disk 1. The yarn guide ring 3 is fixed to the spinning frame. The fiber sliver 4 comes into contact with the twisting disk 1 under the action of the yarn guide ring 3. Under the action of friction, the fiber sliver 4 forms a false twist between the front jaw and the twisting disk 1, which increases the strength of the "spinning yarn" at this stage, thereby reducing the number of breakages when spinning low-twist yarn and improving the spinnability of low-twist yarn.

[0007] The method consists of two parts: a spinning device and a spinning process. The spinning device includes a twisting disk 1, a reduction gear box 2, and a yarn guide ring 3. Its characteristic is that the spindle or the spun yarn tube is connected to the reduction gear box 2. After being decelerated by the reduction gear box 2, the twisting disk 1 is driven to rotate in the same direction as the spindle. The speed of the twisting disk 1 can be changed by adjusting the reduction gear box 2. The yarn guide ring 3 is fixed on the spun yarn frame. After passing through the twisting disk 1 and the yarn guide ring 3, the fiber sliver 4 comes into contact with the twisting disk 1. Under the action of friction, the fiber sliver 4 forms a false twist between the front jaw and the twisting disk 1, thereby increasing the strength of the "spun yarn" at this stage and improving the spinnability of the low-twist yarn. At the same time, the device is directly driven by the spindle or the spun yarn tube, without the need for an external transmission device. Compared with other false twist devices, it is more energy-saving and environmentally friendly.

[0008] Furthermore, the twisting disk 1 is connected to the reduction gear box 2 and is driven by the reduction gear box 2, and the direction is the same as the spindle; the twisting disk 1 is cylindrical or truncated cone in shape, with an upper bottom radius r1 of 15 to 40 mm, a lower bottom radius r2 of 15 to 40 mm, and a height of 5 to 30 mm.

[0009] Furthermore, the reduction gearbox 2 is directly connected to the spindle or the spinning tube and is driven by it; the reduction ratio of the reduction gearbox 2 is 1 to 10 to 1 to 100; the height of the reduction gearbox 2 is 10 to 80 mm and the width is 5 to 15 mm; the outer shell of the reduction gearbox 2 can be optionally fixed on the spinning frame to increase stability.

[0010] Furthermore, the angle α between the fiber strands and the twisting disk after passing through the twisting disk 1, the yarn guide ring 3 and the wire ring 7 is an acute angle; the vertical distance D1 between the yarn guide hook 3 and the twisting disk 1 is 10 to 80 mm, and the shortest distance d1 from the outer casing of the reduction gearbox 2 is 1 to 9 mm.

[0011] Compared with the prior art, the advantages of the present invention are:

[0012] The present invention uses the rotation of the spindle or spun yarn tube and the deceleration of the reduction gear box to drive the twisting disk to rotate, and uses the yarn guide ring to make the fiber strands contact the twisting disk, thereby generating false twist through friction rotation. Compared with the traditional false twist method, this method is more convenient to join the yarn after it is broken, and the device does not require an external transmission mechanism, which is more energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the twisting disk of the present invention.

[0014] Figure 1 Zhong1 is the twisting disk, r1 is the upper bottom radius of the twisting disk, r2 is the lower bottom radius of the twisting disk, and h is the height of the twisting disk.

[0015] Figure 2 Schematic diagram of the yarn guide ring of the present invention

[0016] Figure 3 This is a top view of the yarn guide ring and the reduction gear box after assembly.

[0017] Figure 3 In the figure, 3 is the yarn guide ring, 2 is the reduction gear box, and d1 is the shortest distance between the yarn guide ring and the reduction gear box.

[0018] Figure 4 This is a schematic diagram of the low twist spinning device driven by a spindle or a spinning tube being assembled on a spinning frame.

[0019] Figure 5 yes Figure 4 Left view

[0020] Figure 4 、 Figure 5 In the figure, 1 is the twisting disk, 2 is the reduction gear box, 3 is the yarn guide ring, 4 is the fiber sliver, 5 is the front roller, 6 is the front roller, 7 is the wire traveler, 8 is the steel ring, 9 is the spinning tube, 10 is the spindle, α is the angle between the fiber sliver and the twisting disk after passing through the twisting disk, the yarn guide ring and the wire traveler, and D1 is the vertical distance from the yarn guide ring to the twisting disk. DETAILED DESCRIPTION

[0021] The present invention is described in detail below with reference to the accompanying drawings.

[0022] like Figure 1-5 As shown, a low twist spinning method driven by a spindle or a spun yarn tube includes a twisting disk 1, a reduction gear box 2, and a yarn guide ring 3, characterized in that:

[0023] The spindle or spinning tube is connected to the reduction gearbox 2. After being decelerated by the reduction gearbox 2, it drives the twisting disk 1 to rotate in the same direction as the spindle. Adjusting the reduction gearbox 2 can change the speed of the twisting disk 1. The yarn guide ring 3 is fixed to the spinning frame. The fiber sliver 4 comes into contact with the twisting disk 1 under the action of the yarn guide ring 3. Under the action of friction, the fiber sliver 4 forms a false twist between the front jaw and the twisting disk 1, which increases the strength of the "spinning yarn" at this stage, thereby reducing the number of breakages when spinning low-twist yarn and improving the spinnability of low-twist yarn.

[0024] Specifically, the twisting disk 1 is connected to the reduction gear box 2 and is driven by the reduction gear box 2, and the direction of rotation is the same as that of the spindle; the twisting disk 1 is cylindrical or truncated cone in shape, with an upper bottom radius r1 of 15 to 40 mm, a lower bottom radius r2 of 15 to 40 mm, and a height of 5 to 30 mm.

[0025] Example 1: Cotton yarn with a fineness of 30 tex and a twist coefficient of 270 was spun on a spinning frame. The parameters of the spinning device used in the present invention are: the upper bottom radius r1 of the twisting disk 1 is 15 mm, the lower bottom radius r2 is 15 mm, and the height h is 5 mm. The reduction ratio of the reduction gear box 2 is 1 to 20, the height is 15 mm, and the width is 5 mm. The diameter of the yarn guide ring 3 is 10 mm, and the vertical distance D1 between it and the twisting disk 1 is 10 mm. The spindle speed is 10000 r / min. The yarn forming performance is shown in Table 1

[0026] Specifically, the reduction gearbox 2 is directly connected to the spindle or spinning tube and is driven by it; the reduction ratio of the reduction gearbox 2 is 1 to 10 to 1 to 100; the height of the reduction gearbox 2 is 10 to 80 mm and the width is 5 to 15 mm; the outer shell of the reduction gearbox 2 can be optionally fixed on the spinning frame to increase stability.

[0027] Example 2: Cotton yarn with a fineness of 30 tex and a twist coefficient of 220 was spun on a spinning frame. The parameters of the spinning device used in the present invention are as follows: the upper base radius r1 of the twisting disc 1 is 40 mm, the lower base radius r2 is 40 mm, and the height h is 30 mm. The reduction gearbox 2 has a reduction ratio of 1:100, a height of 80 mm, and a width of 15 mm. The yarn guide ring 3 has a diameter of 35 mm and a vertical distance D1 between it and the twisting disc 1 of 80 mm. The spindle speed is 10,000 rpm. The yarn properties are shown in Table 1.

[0028] Specifically, the angle α between the fiber strands and the twisting disk after passing through the twisting disk 1, the yarn guide ring 3 and the wire ring 7 is an acute angle; the vertical distance D1 between the yarn guide ring 3 and the twisting disk 1 is 10 to 80 mm, and the shortest distance d1 from the outer casing of the reduction gearbox 2 is 1 to 9 mm.

[0029] Example 3: Cotton yarn with a fineness of 30 tex and a twist coefficient of 170 was spun on a spinning frame. The parameters of the spinning device used in this invention are as follows: the upper base radius r1 of the twisting disc 1 is 30 mm, the lower base radius r2 is 40 mm, and the height h is 20 mm. The reduction gearbox 2 has a reduction ratio of 1:50, a height of 50 mm, and a width of 10 mm. The yarn guide ring 3 has a diameter of 25 mm and a vertical distance D1 from the twisting disc 1 of 40 mm. The spindle speed is 10,000 r / min. The yarn properties are shown in Table 1.

[0030] Table 1 Comparison between traditional ring spinning and low twist spinning of 30tex cotton yarn

[0031]

[0032] The above is a detailed description of the present invention in conjunction with specific embodiments, and the specific implementation methods of the present invention should not be considered to be limited to these descriptions. For those skilled in the art to which the present invention relates, any equivalent substitutions or obvious modifications that do not depart from the concept of the present invention and have the same performance or use should be considered to fall within the scope of patent protection of the present invention as determined by the submitted claims.

Claims

1. A low twist spinning method driven by a spindle or a spun yarn tube, comprising a twisting disc (1), a reduction gear box (2), and a yarn guide ring (3), characterized in that: The spindle or the spinning tube is connected to the reduction gear box (2). After being decelerated by the reduction gear box (2), the twisting disk (1) is driven to rotate in the same direction as the spindle. The speed of the twisting disk (1) can be changed by adjusting the reduction gear box (2). The yarn guide ring (3) is fixed on the spinning frame. The fiber sliver (4) comes into contact with the twisting disk (1) under the action of the yarn guide ring (3). Under the action of friction, the fiber sliver (4) forms a false twist between the front jaw and the twisting disk (1), thereby increasing the temporary strength of the sliver at this stage, thereby reducing the number of broken ends when spinning low-twist yarns and improving the spinnability of the low-twist yarns. The twisting disc (1) is connected to the reduction gear box (2) and is driven by the reduction gear box (2), and has the same direction as the spindle; the twisting disc (1) is cylindrical or truncated cone in shape, with an upper bottom surface radius r1 of 15 to 40 mm, a lower bottom surface radius r2 of 15 to 40 mm, and a height of 5 to 30 mm; The reduction ratio of the reduction gear box (2) is 1 to 10 to 1 to 100; the height of the reduction gear box (2) is 10 to 80 mm, and the width is 5 to 15 mm; After the fiber strands pass through the twisting disk (1), the yarn guide ring (3) and the wire ring (7), the included angle α between the fiber strands and the twisting disk is an acute angle; and the vertical distance D1 between the yarn guide hook (3) and the twisting disk (1) is 10 to 80 mm.

2. A low twist spinning method driven by a spindle or a spun bobbin according to claim 1, characterized in that: The reduction gear box (2) is directly connected to the spindle or the spinning tube and is driven by the spindle; the housing of the reduction gear box (2) can be optionally fixed on the spinning frame to increase stability.

3. The low twist spinning method driven by a spindle or a spun bobbin according to claim 1, characterized in that: The shortest distance d1 between the yarn guide hook (3) and the outer shell of the reduction gear box (2) is 1 to 9 mm.

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