CN102115930A - Method and device for processing compact sirospun yarns - Google Patents

Abstract

The invention relates to a processing method and device for compact siro spun yarn, the method comprising: the first roving (1) and the second roving (2) pass through the rear roller (8), the middle roller (9), the front roller (10) after drafting is completed, enter the first entrance (4) and the second entrance (5) of the strand guiding device (7) respectively, and merge into spun yarn (3) at the exit (6); the processing device, Including: rear roller (8), middle roller (9), front roller (10), yarn guide hook (11) and strand guiding device (7), wherein said strand guiding device (7) is fixed to the frame A connection comprising a first inlet (4), a first inlet (5) and an outlet (6). The processing method of the present invention is simple, and the obtained siro spun yarn has less hairiness than the traditional siro spun yarn, and at the same time has more single-strand twist; The device is easy to operate by adding a whisker guide device.

Description

A processing method and device for compact siro spun yarn

technical field

The invention belongs to the field of yarn processing and devices thereof, in particular to a processing method and device for compact siro spun yarns.

Background technique

Reducing hairiness, improving fiber strength, changing the appearance of fabrics, and improving product competitiveness have been the tireless pursuits of experts and manufacturers in the industry for many years. Since Dr. Ernst Fehrer proposed the compact spinning technology aimed at eliminating the spinning triangle to improve yarn quality in the late 1980s, internationally renowned textile machinery manufacturers and R&D institutions have invested a lot of manpower and material resources in the development of compact spinning. (CompactSpinning) device. The first compact spinning device was exhibited at Paris ITMA in 1999. In just a few years, compact spinning has attracted widespread attention from people in the textile industry due to its unique spinning principle, superior yarn forming performance and significant economic benefits. It has developed extremely rapidly and has become the most symbolic technological progress in ring spinning. Its most prominent feature is that it reduces the triangular area of the front roller nip, which greatly improves the yarn structure and can greatly reduce hairiness. At the same time, the yarn strength and evenness of the spun yarn are improved, especially for The effect of improving the quality of high-count yarn products is very significant.

Siro spinning is a new spinning method invented by the Australian Wool Industry Research Institute (CSIRO) from 1975 to 1976 and jointly researched and developed with the International Wool Bureau (IWS). Its principle is: two rovings are fed into the same drafting mechanism of the ring spinning frame in parallel at a certain distance, and are drafted simultaneously in a parallel state, and form two fiber bundles at a certain distance after coming out from the clamping point of the front roller. The two strands are naturally converged due to the twisting effect of the ring spindle below the front roller, twisted into strands, and then wound up on the bobbin through the yarn guide hook and traveler to become the Siro spun yarn. Siro spun yarn has the characteristics of neatly arranged surface fibers, less hairiness and smooth appearance. This is because in the process of spinning siro spun yarns, the length of the twisted region of the single yarn is lower than the average length of the fiber, and the applied twist is small, which makes the angle between the fiber helix in the single yarn and the yarn axis Smaller, so that the single fiber in the single yarn will not protrude laterally from the outer surface of the yarn due to the greater influence of the twisting force.

As the most representative new ring spinning technology at present, compact spinning and siro spinning have their own characteristics. How to integrate them into the same yarn product has become the development direction of high-end yarn products.

Contents of the invention

The technical problem to be solved by the present invention is to provide a processing method of compact siro spun yarn and its device, the processing method is simple, and the obtained siro spun yarn has less hairiness compared with traditional siro spun yarn, Simultaneously, there are more single-strand twists; the processing device of the present invention only needs to install a whisker guiding device on the traditional siro spinning device.

A kind of processing method of compact siro spinning yarn of the present invention comprises:

After the first roving and the second roving pass through the back roller, the middle roller and the front roller to complete the drafting, they enter the first entrance and the second entrance of the beard guiding device respectively, and merge into spun yarns at the exit.

During the spinning process, the beard guiding device changes the shape of the twisting triangle, and the length of action between the guide groove and the fiber beard can fully transfer the twist to the single fiber beard, and at the same time make the two strands of fiber beard at the exit The twisting effect can still be obtained after converging. Finally, yarns are spun in one go on the ring spinning frame.

A processing device for compact siro spun yarn of the present invention comprises: rear rollers, middle rollers, front rollers, yarn guide hooks and strand guiding devices, wherein the strand guiding devices are fixedly connected to the frame, and It includes two entrances, that is, the first entrance and the second entrance, and the hollow semi-cone formed by the first entrance, the second entrance and the exit forms a guide groove for fiber whiskers (as shown in Figure 2).

The width of the whisker guiding device is 20-30mm, the height is 10-20mm, and the length of interaction with the fiber whiskers is 6-10mm.

The two entrances, the first entrance and the second entrance, are both semicircles with a diameter of 3-6mm, and the interval between the first entrance and the second entrance is 5-10mm; the exit is a semicircle with a diameter of 2-4mm.

In order to avoid fiber scratches, any sharp-edged walls of the processing device are chamfered; in order to improve the wear resistance of the device, the beard guiding device (7) is generally made of polyurethane material.

Beneficial effect

The processing method of the present invention is simple. By installing the strand guiding device, the two strands of fiber strands can be mechanically gathered first, and then gathered and twisted at the exit. The whole process is held and isolated by the strand guiding device. , the mutual interference between the strands is small, the hairiness is less compared with the traditional siro-spun yarn, and the single-strand twist is more, and the ply effect is more obvious compared with the traditional compact-spun yarn.

Description of drawings

Figure 1 is a schematic diagram of the structure of the Siro spinning device: 1, 2-roving, 3-spun yarn, 7-sliver guiding device, 8-rear roller, 9-middle roller, 10-front roller, 11-yarn guide hook ;

Fig. 2 is a structural schematic diagram of the strand guiding device: 1, 2-roving, 3-spun yarn, 4, 5-entrance, 6-exit, 7-the strand guiding device.

Detailed ways

Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

Example 1

After the roving 1 and the roving 2 pass through the rear roller 8, the middle roller 9 and the front roller 10 to complete the drafting, they enter the entrances 4 and 5 of the beard guiding device 7 respectively, and merge into the spun yarn 3 at the exit 6.

During the spinning process, the beard guiding device 7 changes the shape of the twisting triangle, and the length of action between the guide groove and the fiber beard can fully transfer the twist to the single fiber beard, and at the same time make the two strands of fiber beard in the same direction. The twisting effect can still be obtained after the exit 6 merges. Finally, yarns are spun in one go on the ring spinning frame.

Described whisker guiding device 7 is fixedly connected with frame, and its width is 30mm, and height is 20mm, and the action length of fiber whisker is 10mm. The inlets 4 and 5 are semicircles with a diameter of 6 mm, the interval between the two inlets is 10 mm, and the outlet 6 is a semicircle with a diameter of 4 mm. The hollow semi-cone formed by the inlet and the outlet forms the guide groove for the fiber whiskers.

Example 2

After the roving 1 and the roving 2 pass through the rear roller 8, the middle roller 9 and the front roller 10 to complete the drafting, they enter the entrances 4 and 5 of the strand guiding device 7 respectively, and merge at the exit 6.

During the spinning process, the beard guiding device 7 changes the shape of the twisting triangle, and the length of action between the guide groove and the fiber beard can fully transfer the twist to the single fiber beard, and at the same time make the two strands of fiber beard in the same direction. The twisting effect can still be obtained after the exit 6 merges. Finally, yarns are spun in one go on the ring spinning frame.

Described whisker guiding device 7 is fixedly connected with frame, and its width is 25mm, and height is 15mm, and the action length of fiber whisker is 8mm. The inlets 4 and 5 are semicircles with a diameter of 5 mm, the interval between the two inlets is 8 mm, and the outlet 6 is a semicircle with a diameter of 3 mm. The hollow semi-cone formed by the inlet and the outlet forms the guide groove for the fiber whiskers.

Example 3

After the roving 1 and the roving 2 pass through the rear roller 8, the middle roller 9 and the front roller 10 to complete the drafting, they enter the entrances 4 and 5 of the strand guiding device 7 respectively, and merge at the exit 6.

During the spinning process, the beard guiding device 7 changes the shape of the twisting triangle, and the length of action between the guide groove and the fiber beard can fully transfer the twist to the single fiber beard, and at the same time make the two strands of fiber beard in the same direction. The twisting effect can still be obtained after the exit 6 merges. Finally, yarns are spun in one go on the ring spinning frame.

Described whisker guiding device 7 is fixedly connected with frame, and its width is 20mm, and height is 10mm, and the action length of fiber whisker is 6mm. The inlets 4 and 5 are semicircles with a diameter of 3 mm, the interval between the two inlets is 5 mm, and the outlet 6 is a semicircle with a diameter of 2 mm. The hollow semi-cone formed by the inlet and the outlet forms the guide groove for the fiber whiskers.

Claims (5)

1. the processing method of a tight siro-spinning yarn comprises:

After first rove (1) and second rove (2) are finished drawing-off through rear roller (8), middle roller (9), front roller (10), enter first inlet (4) and second inlet (5) of yarn guiding device (7) respectively, and locate to merge into spun yarn (3) in outlet (6).

2. the processing unit (plant) of a tight siro-spinning yarn, comprise: rear roller (8), middle roller (9), front roller (10), twizzle (11) and yarn guiding device (7), it is characterized in that: described yarn guiding device (7) is fixedlyed connected with frame, it comprises first inlet (4), second inlet (5) and outlet (6), and first inlet (4) and second inlet (5) and the guiding groove that exports the hollow half-conical body formation fiber strip that (6) be linked to be.

3. the processing unit (plant) of a kind of tight siro-spinning yarn according to claim 2, it is characterized in that: the width of described yarn guiding device (7) is 20～30mm, highly is 10～20mm, with the action length of fiber strip be 6～10mm.

4. the processing unit (plant) of a kind of tight siro-spinning yarn according to claim 2, it is characterized in that: described first inlet (4) and second inlet (5) are the semicircle of diameter 3～6mm, are spaced apart 5～10mm between first inlet (4) and second inlet (5); Outlet (6) is the semicircle of diameter 2～4mm.

5. according to the processing unit (plant) of the described a kind of tight siro-spinning yarn of arbitrary claim in the claim 2 to 4, it is characterized in that: any wedge angle wall of this processing unit (plant) all carries out chamfered, and yarn guiding device (7) is selected polyurethane material for use.

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