CN104357972A - Spinning method for double aggregation of strand fibers - Google Patents

Abstract

The invention proposes a spinning method for double gathering of whisker fibers. Specifically, a spinning device for double gathering treatment of whisker fibers is installed on existing spinning equipment, which belongs to the technical field of textile processing. In the present invention, a pre-accumulating device is installed in the front drafting area of the ring spinning frame, and the strands are input into the pre-accumulating device through the holding jaw composed of the upper apron and the lower apron. The strips are output from the front nip composed of the front top roller and the front roller, and after being collected by the re-accumulating device, they are wound on the spun bobbin through the yarn guide hook, steel ring and traveler. The yarn spun by the invention has significantly reduced surface 3mm harmful hairiness, and the yarn strength is significantly higher than the yarn spun by traditional spinning technology.

Description

A kind of spinning method of double gathering of sliver fibers

technical field

The invention proposes a spinning method for double gathering of whisker fibers, which specifically installs a set of spinning devices for re-gathering treatment of whisker fibers on existing spinning equipment, belonging to the technical field of textile processing. the

Background technique

The spinning process is the foundation and key link of the entire textile industry. The quality of the yarn produced in the spinning process directly determines the processing quality and efficiency of the subsequent products of the yarn, such as sizing, weaving efficiency and the final cloth surface effect. Ring spinning, which appeared in the early 19th century, laid the foundation for modern yarn processing technology. Hairiness and evenness are important indicators to measure yarn quality, and are also indicators for spun yarn quality stipulated in the national standard GB/T398-93. Yarn strength, evenness Dryness and hairiness not only affect the production efficiency of post-processes such as weaving and knitting, but also affect the appearance quality of the final product, especially today when shuttleless looms are widely used, reducing yarn hairiness and increasing yarn strength are very important in actual production. Significance. the

In terms of reducing yarn hairiness and improving yarn strength, many textile workers at home and abroad have done a lot of research and developed many new spinning technologies, such as sirofil spinning, siro spinning, compact spinning, cable spinning, etc. These new spinning methods have greatly enriched the spinning processing methods and significantly improved the yarn quality. For example: compact spinning is a spinning method invented to improve the quality of hairiness. By using negative pressure suction or magnetic pressure to control the movement of fibers in the twisted strands to reduce the chance of yarn hairiness and improve yarn quality. Linear density, reduce yarn hairiness, improve yarn strength. Although compact spinning technology can greatly reduce yarn hairiness and improve yarn strength, it also encounters many problems in actual production. This requires a lot of energy consumption for the textile mill, and the distance between the spindles is relatively large. Because of the wind, the hairiness and strength effect of high-count yarn spinning is more obvious, but the effect is relatively poor for low-count yarn. Condensed spinning is also a new type of spinning invented to reduce yarn hairiness. Since this method can be realized in multiple places on the spinning frame, the methods for realizing concentrating spinning are different. Among them, Reiter (Lida) Co., Ltd. of Switzerland It is to add a pneumatic gathering area between the drafting area and the yarn, and the fiber bundle drawn in this area is controlled and compressed by the negative pressure airflow as soon as it leaves the holding jaw. After this compression, the The twisting triangular area at the back no longer exists, and the fiber bundles are under good bundle control, thereby improving the yarn quality; the compact spinning of the German Suessen company is similar to the compact spinning of the Rieter company, and it is also in the front roller nip of the ordinary ring spinning machine. A set of pneumatic concentrating device is installed outside the line to eliminate the spinning triangle area and make the fibers parallel and straight, so as to effectively control the movement of the fiber bundles. The difference is that the pneumatic concentrating device can be installed and disassembled at will. , to facilitate the transformation of traditional ring spinning equipment; the compact ring spinning device of Swiss Rotorcraft company is that the front top roller and the yarn delivery top roller are pressed on the front roller, and there is a precise cotton condenser between the two, which is permanently The magnet is attracted to the surface of the front roller to form a fiber channel with a shrinking section, which passes through the fiber channel of the compactor and is safely transported to the yarn delivery nip. The condensing spinning of the above-mentioned Reiter (Lida) company and the German Suessen company has adopted the negative pressure airflow condensing method, which needs to consume a large amount of electric energy. The method limits the traversing movement of the roving during actual production and use, thus causing a single point of friction between the roving and the top roller, which intensifies the consumption of the top roller. Chinese Patent Publication No. CN103757762A, published on April 30, 2014, the name of the invention is a spinning method for fiberizing strands, which discloses a spinning method for fiberizing strands, the method On the basis of the ring spinning technology, a device for fiberizing the sliver is installed in the drafting area of the spun yarn, which increases the control of the fibers in the drafting area, and can control the fibers of the sliver with the number of fibers gradually decreasing. For the smoothing effect, the front end of the device is very close to the meshing line between the front top roller and the front roller, which can significantly reduce yarn hairiness, improve yarn evenness and yarn strength, and reduce the edge of the twisting triangle area of spun yarn The fiber is sucked away by the suction tube and becomes bellows, which is beneficial to improve the yield of spun yarn. However, this method can only control the fiber in the drafting area of the spun yarn, and does not have any management on the fiber coming out of the front nip, especially the fiber entering the spun yarn. The fibers in the spinning triangle area are not constrained, and the effect of this method on improving the ring-spun yarn is not obvious enough. the

the

Contents of the invention

For above-mentioned existing problem, the present invention proposes a kind of spinning method that the sliver fiber is carried out double gathering, in order to realize above-mentioned object, its technical solution is:

A spinning method for double gathering of strand fibers, which includes adding a fiber finishing device to the distance block or cradle in the drafting area of the ring spinning frame, and the strands are jointly formed by the lower apron and the upper apron The gripping jaw of the machine is input into the whole fiber processing device, and the slivers after being gathered and autoleveled by the whole fiber processing device are output from the front nip composed of the front top roller and front roller, and in the front front roller and front roller. A re-gathering device is installed behind the nip. After the strands are output from the front nip composed of front top rollers and front rollers, they enter the re-gathering device, and then go through the yarn guide hook, steel ring, and traveler, and are wound on the spun yarn bobbin.

The re-accumulating device is composed of a re-accumulating device, a support shaft, a bracket and a positioning wheel. The re-accumulating device is composed of a re-accumulating groove, a threaded sleeve, a shaft sleeve and a positioning groove. The re-accumulating device is cylindrical, and the re-accumulating groove is located At the center of the device, the axle sleeve is movably set on one end of the support shaft, the positioning wheel is cylindrical and has a through hole in the center, the positioning wheel is fixed on the other end of the support shaft, the support shaft is cylindrical, and the support shaft is fixed on the support. the

The re-accumulation groove of the re-accumulator has a depth of 0.1mm-1.0mm and a width of 0.1mm-1.5mm. the

Due to the adoption of the above technical scheme, the strands in the drafting area are processed by the fiber-refining treatment device installed in the drafting area. The pre-accumulation of the strands in the area reduces the width of the strands output from the front jaws, that is, the width of the twisting triangle area is reduced, which is conducive to the edge fibers being twisted into the main yarn during twisting, and the strands are first The quality of the yarn can be partially improved after the secondary accumulation; the strands are output from the front jaws and enter the re-accumulation device. After the re-accumulation device is installed in the twisting triangle area, the re-accumulation groove on the re-accumulation device gathers the edge fibers again, and the re-accumulation The aggregator is cylindrical, and the heavy aggregator rotates around the support shaft. The heavy agglomeration groove in the middle of the heavy aggregator also rotates. The accumulating groove is conveyed forward synchronously, and the re-accumulating groove gathers and gathers the edges of the strands while conveying the strands, which can effectively reduce the width of the twisting triangle area and re-accumulate the strands that are about to be yarned, so that the surface of the strands floats The fibers can be embedded inside the strands, and the twist passes through the yarn guide hook from bottom to top and then transferred to the twisting triangle area. The edge fibers are twisted along the yarn axis and then drawn into the center of the yarn, forming a 3mm surface with very little harmful hairiness. High-quality yarn with significantly higher yarn tenacity than yarns spun with conventional spinning techniques. the

Description of drawings

Fig. 1 is a schematic diagram of the working principle of the present invention. the

Figure 2 is a schematic diagram of the installation of the re-accumulation device of the present invention. the

Fig. 3 is a schematic diagram of the structure of the heavy concentrator of the present invention. the

Detailed ways

Below in conjunction with accompanying drawing, the present invention is described in further detail, see accompanying drawing 1,2,3. the

A spinning method for double-gathering strand fibers, in which a finishing device 4 is installed in the front drafting area of the ring spinning frame, and the strand 1 passes through the holding forceps composed of the lower apron 2 and the upper apron 3 The mouth is input into the fiber-refining device 4, the fiber-refining device 4 can be a fiber-refiner or a cotton collector, the sliver 1 pre-collected by the fiber-refining device 4, the front nipper formed from the front top roller 5 and the front roller 6 After the port output, after the re-accumulation processing by the re-accumulation processing device 7, the yarn guide hook 8, the steel ring 9, the traveler 10, are wound on the spun yarn bobbin 11; the re-accumulation processing device 7 is a re-concentration device 15, Support shaft 16, bracket 17 and positioning wheel 18 constitute, re-accumulation device 15 is made of re-accumulation groove 19, threaded sleeve 20, axle sleeve 21 and positioning groove 22, re-accumulation device 15 is cylindrical, and re-accumulation groove 19 is positioned at heavy At the center of the accumulator 7, the sleeve 21 is movably fitted on one end of the support shaft 16, the positioning wheel 18 is cylindrical and has a through hole in the center, the positioning wheel 18 is fixed on the other end of the support shaft 16, the support shaft 16 is cylindrical, and the support shaft 16 fixed on the bracket 17. the

The pre-drawn strands 1 are input into the front drafting zone through the lower apron 2 and the upper apron 3, and then enter the fiberizing treatment device 4. The central concentration is conducive to gradually reducing the width of the cross-section of the strand 1, and the friction force between the fibers in the strand 1 has also been enhanced. The strands 1 are output into the re-accumulating device 7 through the front nip formed by the front top roller 5 and the front roller 6, and the re-accumulating device 7 is composed of a re-accumulating device 15, a support shaft 16, a support 17 and positioning wheel 18, the re-accumulator 15 is composed of a re-accumulation groove 19, a threaded sleeve 20, an axle sleeve 21 and a positioning groove 22, the re-accumulator 15 is cylindrical, and the re-accumulation groove 19 depth of the re-accumulator 15 is 0.1mm-1.0mm, the width is 0.1mm-1.5mm, and the re-accumulating groove 19 is located at the center of the re-accumulating device 7 . The shaft sleeve 21 is movably fitted on one end of the support shaft 16, and the strand 1 passes through the front jaw formed by the front top roller 5 and the front roller 6 to drive the heavy accumulator 15 to rotate smoothly around the support shaft 16 through the reaccumulation groove 19, and the positioning wheel 18 is There is a through hole in the cylindrical center, and the positioning wheel 18 is fixed on the other end of the supporting shaft 16, and the supporting shaft 16 is cylindrical, and the supporting shaft 16 is fixed on the support 17. The strands 1 in the drafting area are processed through the fiber-refining treatment device 4 installed in the drafting area, and the treatment tank of the fiber-refining processing device 4 embeds the floating fibers on the surface of the strands into the inside of the strands, and the strands in the drafting area are processed. Pre-accumulation reduces the width of the sliver 1 output from the front nip composed of the front top roller 5 and the front roller 6, that is, reduces the width of the twisting triangle area, which is beneficial for the edge fibers to be twisted into the yarn trunk during twisting , the quality of the yarn can be partially improved after the first accumulation of the strand 1; the strand 1 is output from the front nip formed by the front top roller 5 and the front roller 6 and then enters the re-accumulation device 7, after being added in the twisting triangle area Load heavy gathering device 7, heavy gathering device 7 comprises heavy gathering device 15, and heavy gathering groove 19 on the heavy gathering unit 15 gathers up the edge fiber of whisker 1 again, and heavy gathering unit 15 is cylindrical, and heavy gathering unit 15 is Rotating around the support shaft 16, the re-accumulating tank 19 in the middle of the re-accumulating device 15 is also rotating, and the strands 1 coming out of the front nip formed by the front top roller 5 and the front roller 6 are transported into the re-accumulating tank 19 from back to front , the strands 1 are transported forward synchronously with the re-accumulation groove 19, and the re-accumulation groove 19 gathers the edge of the strands 1, and conveys the strands simultaneously, which can effectively reduce the width of the twisting triangular area, and carry out the process on the strands that are about to be formed into yarns. Gather again, so that the floating fibers on the surface of the strand 1 can be embedded into the inside of the strand 1, the twist passes through the yarn guide hook 8 from bottom to top, and then is transferred to the twisting triangle area, and the edge fibers are twisted along the axial direction of the yarn and then drawn into the yarn The center of the thread forms a high-quality yarn with very little harmful hairiness on the surface of 3mm, and the yarn strength is significantly higher than that of yarn spun by traditional spinning technology. the

Claims (3)

1. A spinning method for double gathering of strand fibers, comprising installing a fiber-refining device (4) on the distance block or the cradle in the front drafting area of the ring spinning frame, and the strands (1) pass through the lower The holding jaw composed of the apron (2) and the upper apron (3) is fed into the whole fiber processing device (4), and the strands (1) after being collected and autoleveled by the whole fiber processing device (4) are Output from the front nip composed of the front top roller (5) and the front roller (6), characterized in that: a heavy gathering device (7) is installed behind the front nip composed of the front top roller (5) and the front roller (6) , the strands (1) are output from the front nip composed of the front top roller (5) and the front roller (6), enter the reaccumulation device (7), and then go through the yarn guide hook (8), steel ring (9), steel wire Circle (10), is wound on the spun tube (11). 2. A spinning method for double-gathering fibers according to claim 1, characterized in that: the re-gathering device (7) consists of a re-gatherer (15), a support shaft (16), a bracket (17) and The positioning wheel (18) is formed, and the heavy accumulator (15) is composed of a heavy accumulating groove (19), a threaded sleeve (20), a shaft sleeve (21) and a positioning groove (22), and the heavy accumulator (15) is cylindrical. The re-accumulation groove (19) is located at the center of the re-accumulator (7), the sleeve (21) is movably fitted on one end of the support shaft (16), the positioning wheel (18) is cylindrical and has a through hole in the center, and the positioning wheel (18) is fixed At the other end of the support shaft (16), the support shaft (16) is cylindrical, and the support shaft (16) is fixed on the support (17). 3. A spinning method for double-gathering fibers according to claim 3, characterized in that: the heavy-gathering groove (19) of the heavy-gatherer (15) has a depth of 0.1mm-1.0mm and a width of 0.1mm -1.5mm.