CN104928816A - Re-collecting spinning method implemented by aid of support shaft capable of actively rotating - Google Patents

Abstract

The invention provides a re-collecting spinning method implemented by the aid of a support shaft capable of actively rotating, and belongs to the field of textile processing technologies. A transmission mode for the support shaft of an existing re-collecting device additionally mounted on a spinning frame is particularly changed. The re-collecting spinning method is characterized in that a transmission gear is arranged at an end of the support shaft of the re-collecting device, is fixedly arranged between a support and a re-collector and is meshed with laces on a roller, the support shaft is movably nested in a shaft sleeve, the shaft sleeve is fixed onto the support, the gear can be driven by the roller to drive the support shaft to rotate, frictional force between the support shaft and the re-collector can be reduced after the support shaft rotates, and accordingly frictional force between the re-collector and yarns can be reduced. The re-collecting spinning method has the advantages that 3mm harmful hairiness of the surfaces of the yarns spun by the aid of the re-collecting spinning method can be obviously reduced, the strength of the yarns is obviously higher than the strength of yarns spun by the aid of the traditional spinning technologies, and the deterioration of the yarn levelness can be prevented.

Description

A re-gathering spinning method with active rotation of the support shaft

technical field

The invention relates to a re-gathering spinning method in which a supporting shaft actively rotates, specifically by changing the transmission mode of the supporting shaft of a re-gathering device installed on a spinning frame, and belongs to the technical field of textile processing.

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 subsequent processing of the yarn, such as weaving efficiency and 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 of spun yarn quality stipulated in the national standard GB/T398-93. It not only affects the production efficiency of post-processes such as weaving and knitting, but also affects the appearance quality of the final product, especially today when shuttleless looms are widely used, reducing yarn hairiness is of great significance.

Scholars at home and abroad have done a lot of research on controlling yarn hairiness. There are two methods commonly used, one is to use conventional methods, that is, to reduce hairiness by rationally optimizing process parameters or applying some new spinning technologies, such as increasing yarn twist, reducing spinning speed, and appropriately increasing spinning tension , Appropriately reduce the draft ratio of the spun yarn area or adopt such as compact spinning technology. One is to develop a special hairiness reduction device to eliminate hairiness, such as adding some simple hairiness elimination devices on the ring spinning frame to reduce yarn hairiness. At present, the method of air jetting is basically used to reduce yarn hairiness, that is, an air jetting device is installed between the front roller and the yarn guide hook, and the formed hairiness is attached to the surface of the yarn by using the rotation of the air stream, such as the United States Intellectual Property Office April 1979 The invention patent "method and apparatus yarn treatment" published on August 10, patent number 41481779 and the invention patent "method and apparatus for modifying sun textile yarn" published on August 22, 1989, patent number 5263311. The main difference between these studies is that the different air injection devices lead to different force directions on the yarn surface fibers, resulting in different winding effects and resulting in different yarn hairiness elimination effects. At the same time, these devices need to be installed with special air compression equipment and pipelines, and have complex structures. Installing them on the spinning frame has a great influence on the joint operation of the car operator, and consumes a lot of energy. Pressure bar spacer with grooves, Chinese Patent Publication No. CN201459313U, published on May 12, 2010, the name of the invention is pressure bar spacer with grooves, the patent discloses a pressure bar with grooves The distance block includes the distance block and the pressure rods fixed on the left and right ends of the distance block. On the left and right symmetrical side walls of the pressure rod, there are concave grooves I in an inverted triangle shape and concave grooves II in a triangular shape. The concave groove I is located at Just above the concave groove II and its groove surface is larger than the groove surface of the concave groove II, the pointed bottom surface of the concave groove I and the pointed top surface of the concave groove II just join. In the spinning process of the pressure rod spacer with grooves of the utility model, the cross section of the whiskers is subjected to shrinkage through the inverted triangle concave groove I and then diverges through the triangular concave groove II, and the cross section of the whiskers is subjected to shrinkage. The control is reduced thus affecting the yarn quality. Chinese Patent Publication No. CN103361784A, publication date 2013.10.23, the name of the invention is a spinning collector. Installing a collector in the drafting area of the spinning frame can reduce the width of fiber strands, arrange floating fibers, reduce fly and draft cots due to static electricity Cots and piles produced by adsorption reduce raw material consumption and significantly reduce yarn hairiness. When the yarn passes through the collector, the collector will force the yarn to be squeezed, and the collector will rub against the yarn, which will affect the deterioration of yarn quality. It's dry.

Scholars at home and abroad have also done a lot of research on improving the system. All in all, there are four measures to reduce the unevenness of yarn evenness: one is to strengthen the management of raw materials and the test and analysis of their performance. The difference in length and fineness, as well as the control of short staples and harmful defects, must strictly implement the cotton distribution regulations. The second is to carry out reasonable process design, give full play to the control ability of each drafting machine to the fiber movement, so that the fiber moves regularly during the drafting process, so as to reduce the "drafting wave" for the spinning frame in the yarn forming process ,Particularly important. The third is to improve the quality of semi-finished products and strictly prevent the existence of periodic ripples and potential unevenness in semi-finished products. In addition, it is also crucial to improve the separation degree and straightening parallelism of fibers in the semi-finished product, and to make the fibers move regularly during the drafting process of the spinning process. The fourth is to improve the design rationality and manufacturing precision of mechanical equipment, especially the precision of drafting parts, strengthen the repair and maintenance of machinery, ensure that the equipment is in good condition, and reduce "mechanical waves".

In order to improve the evenness of the yarn, many patents install pressure rods in the drafting area to increase the additional friction to improve the evenness. The utility model discloses a pressure rod in the front area of the spun yarn, which belongs to the field of textile machinery, and its structure includes a rod body and a distance block. The cross-section of the rod body is obliquely upturned at the upper part, and the lower part is arc-shaped. The middle part and the front side of the distance block are respectively provided with a middle groove and a front side groove. The outer edges of the front portion of the upper pin are arranged in parallel. Compared with the prior art, the pressure bar in the spinning front area of the utility model has a bar body in front of the upper pin, which can further strengthen the control of the fibers in the drafting area, and the thickness of the yarn is more uniform. However, the pressure The rod will entangle the fibers and cannot adapt to the traversing of the roving. If the roving does not traverse, the top roller will be worn unevenly, which reduces the service life of the top roller and increases the production cost, which is not conducive to large-scale promotion and use. Chinese Patent Publication No. CN202181396U, published on April 4, 2012, the name of the invention is a traverse pressure rod collector, which relates to a drafting device in the field of textile machinery, especially a pressure rod used on spinning machines aggregator. It is composed of a spacer (1) and a pressure rod (2). The distance block is provided with a piercing hole. The shape of the piercing hole is consistent with the cross-sectional shape of the pressure rod. The pressure rod is inserted into this piercing hole. It forms a clearance fit; the pressure rod is provided with a blind hole, and a limit pin (3) is riveted in the blind hole to cooperate with the limit groove (4) on the distance block. Compared with the prior art, the utility model has the advantages of being able to realize yarn traverse, thereby reducing the wear of the top rollers, prolonging the service life of the top rollers, effectively controlling the fibers in the floating zone, reducing hairiness, and improving the spinning quality. There is still the issue of filament wound pressure rods, and installing this traversable pressure

After the rod collector, the transverse movement of the roving is subjected to a large resistance perpendicular to the drafting direction of the roving, which is completely unfavorable for the straightening and parallel arrangement of the single fibers in the roving, which will deteriorate the yarn evenness and the difference between the spindles will also increase, affecting the cost of production. Yarn quality is not conducive to large-scale promotion. Chinese Patent Publication No. CN102260940A, published on November 30, 2011, the name of the invention is a high-efficiency compact textile process. The patent discloses a high-efficiency compact textile process.

The fiber control device is added in the drafting area, which increases the friction force field, and effectively controls the fiber movement, especially the control of short fibers, so that the fiber speed change point is moved forward, and the unevenness of the yarn is reduced, but the tightness Spinning consumes a lot of energy, and the increased fiber control device reduces fiber utilization. Chinese Patent Publication No. CN101580982B, published on January 12, 2011, the name of the invention is a mechanical three-dimensional compact spinning device. The patent discloses a mechanical three-dimensional compact spinning device. The method is based on the ring spinning technology. Basically, the lower top roller is installed on the cradle of the spinning frame, and the bottom roller is installed under the cradle and pressed against the lower top roller, and also includes a cage. The cage has a movable end and a handle, and the cage passes through The movable end is installed on the bottom top roller, and two sets of magnets are installed on the cage, among which, the first magnet is installed on the cage corresponding to the position of the bottom roller, and the second magnet is installed on the cage corresponding to the position of the bottom roller. The compact part is installed on the cage through the shaft. The side of the compact part facing the bottom roller is arc-shaped to fit the bottom roller. to narrow cluster trenches. The compact spinning device can better solve the original "hairiness" problem and improve the yarn quality, but there are also some shortcomings, such as complex structure and high production cost; and the compact parts and rollers in the compact spinning device If there is friction between the compact part and the roller, the compact part will definitely become a wearing part, which will increase the material consumption of the spinning machine. 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. Chinese Patent Publication No. CN104357972A, published on February 18, 2015, the name of the invention is a spinning method for double aggregation of strand fibers, and a spinning method for double aggregation of strand fibers is proposed. A pre-accumulating device is installed in the front drafting area of the spinning frame, and the strands are fed into the pre-accumulating device through the holding jaw composed of the upper rubber ring and the lower apron. After the output of the front nip composed of the front roller, after the accumulation treatment of the heavy accumulation device, the yarn guide hook, the steel ring and the traveler are wound on the spun yarn bobbin, and the heavy accumulation area is surrounded by the heavy accumulation area due to the lifting of the yarn guide hook The arc is constantly changing, and the length of the arc surrounded by re-agglomeration is too short, so the effect of re-agglomeration is unstable. Chinese Patent Publication No. CN104357973A, published on February 18, 2015, the name of the invention is a re-concentration spinning method for adjusting yarn tension balance, and a re-concentration spinning method for adjusting yarn tension balance is proposed. A pre-accumulating device is installed in the front drafting area of the ring spinning machine, and the strands are fed into the pre-accumulating device through the gripping jaws composed of the upper rubber ring and the lower apron, and the strands pre-accumulated by the pre-accumulating device After being output from the front nip composed of the front top roller and the front roller, the yarn passes through the re-accumulation device, the tension balance device, and then through the yarn guide hook, the steel ring, and the traveler, and is wound on the spun yarn bobbin. This method solves the problem of The lifting of the yarn guide hook causes the spinning tension in the re-accumulation area to change continuously, the length of the re-accumulation surrounding arc is short, and the re-accumulation effect is unstable. Transmission, which in turn affects the dryness and strength of the yarn. Chinese Patent Publication No. CN104451981A, published on March 25, 2015, the name of the invention is a re-concentration spinning method with improved re-concentration spinning enclosing arc length, and a method with improved re-concentration spinning enclosing arc length is proposed The re-concentration spinning method, the invention adopts a pre-concentration device installed in the front drafting area of the ring spinning frame. After the pre-accumulated strands are output from the front nip composed of the front top roller and the front roller, the strands are re-assembled by the re-accumulation processor, and then processed by the re-accumulator with increased encircling arc length, and then led to The yarn hook, steel ring, and traveler are wound on the spun yarn tube. This method solves the problem that the re-accumulation surrounding arc in the re-accumulation area is constantly changing due to the lifting of the yarn guide hook, the length of the re-accumulation surrounding arc is short, and the re-accumulation effect is unstable. problem, but the ensuing problem is that the processing device surrounding the arc length heavy concentrator has twist traps, which prevents the transmission of twist and affects the dryness and strength of the yarn.

Contents of the invention

In view of the above existing problems, the object of the present invention is to provide a re-concentration spinning method in which the support shaft actively rotates.

In order to achieve the above purpose, its technical solution is:

A re-gathering spinning method with the active rotation of the support shaft, including installing a fiber-refining processing device on the distance block or the cradle in the front drafting area of the ring spinning frame, and the strands pass through the lower apron and the upper apron together. The gripping jaw composed of the whole fiber processing device is input into the fiber processing device, and the sliver after being collected and autoleveled by the fiber processing device is output from the front jaw composed of the front top roller and the front roller, and enters the front roller and the front roller. A heavy-gathering device is installed behind the front jaw of the machine, and then wound on the spun bobbin through the yarn guide hook, steel ring, and traveler. One end of the support shaft of the heavy-gathering device is provided with a transmission gear, which is fixed on the Between the bracket and the sheave, the transmission gear is engaged with the roller, the support shaft is movably sleeved in the sleeve, and the sleeve is fixed on the bracket.

Due to the adoption of the above technical scheme, the feature of the re-gathering of the active rotation of the support shaft in the present invention is that the power of the active rotation of the support shaft comes from the roller, and no additional power device is needed on the machine table. The transmission is ingenious. After the active rotation of the support shaft, the movable set The heavy compactor on the support shaft rotates with the active rotation of the support shaft, and the yarn passes through the heavy compactor under the heavy compactor to drive the heavy compactor to rotate, and at this time the friction between the heavy compactor and the support shaft The rotation of the heavy compactor is hindered. Because of the large friction between the heavy compactor and the support shaft, the yarn cannot drive the heavy compactor to rotate around the support shaft smoothly, seriously deteriorating the evenness of the yarn. After the support shaft is actively rotated by the roller through the transmission gear, the rotational friction force between the heavy compactor and the support shaft is greatly reduced, thereby greatly reducing the friction force of the heavy compactor on the yarn and reducing the yarn The friction with the heavy compactor improves the evenness of the yarn and ensures the effect of heavy compaction.

Description of drawings

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

Fig. 2 is a schematic diagram of the installation of the re-accumulation device with active rotation of the support shaft of the present invention.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings. see Attachment.

A method of re-gathering spinning with active rotation of the support shaft. The method of the present invention is based on the Chinese patent publication No. CN104357972A, published on February 18, 2015, and the name of the invention is a spinning method for double-gathering of sliver fibers. The improvement includes installing a fiber-refining processing device 4 on the distance block or the cradle in the front drafting area of the ring spinning frame, and the strand 1 is input through the holding jaw composed of the lower apron 2 and the upper apron 3 Fiber sizing device 4, the sliver 1 collected by the sizing device 4 and processed by autoleveling is output from the front nip composed of the front top roller 5 and the front roller 6, and enters the front roller 5 and the front roller 6. A re-gathering device 7 is installed at the rear of the front jaw, and then through the guide hook 8, the steel collar 9, and the traveler 10, the yarn is wound on the spun bobbin 11, and one end of the supporting shaft 12 of the re-gathering device 7 is provided with a transmission Gear 13, transmission gear 13 are installed between support 14 and heavy aggregator 15, transmission gear 13 and the lace mesh on the roller 6, support shaft 12 movable sleeves in the axle sleeve 16, and axle sleeve is fixed on the support 14. The re-accumulation device 7 is composed of a re-accumulator 15, a support shaft 12, a bracket 14 and a positioning wheel 17. The re-accumulator is composed of a re-accumulation groove, a threaded sleeve, a shaft sleeve and a positioning groove. The re-accumulation device is cylindrical and heavy The gathering groove is positioned at the center of the heavy accumulator, and the axle sleeve is movably sleeved at one end of the support shaft. The center of the positioning wheel 17 is cylindrical and has a through hole. The depth of the re-accumulation groove of the re-accumulator 15 is 0.1mm-1.0mm, and the width is 0.1mm-1.5mm. The re-accumulation tank is located at the center of the re-accumulator 15 . The bushing is movably fitted on one end of the support shaft 12, and the strand 1 passes through the front jaw formed by the front top roller 5 and the front roller 6 to drive the reaccumulator 15 to rotate around the support shaft 12 through the reaccumulation groove, and the positioning wheel 17 has a cylindrical center There is a through hole, the positioning wheel 17 is fixed on the other end of the support shaft 12, the support shaft 12 is cylindrical, the support shaft 12 is movably sleeved on the axle sleeve 16, and the axle sleeve 16 is fixed on the support 14. 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 the heavy gathering device 7, the heavy gathering device 7 includes a heavy gathering device 15, and the heavy gathering groove on the heavy gathering unit 15 gathers up the edge fibers of the strands 1 again, and the heavy gathering unit 15 is cylindrical, and the heavy gathering unit 15 is wound around When the support shaft 12 rotates, the gear 13 drives the support shaft 12 to rotate under the drive of the roller 6. After the support shaft 12 rotates, the friction between the support shaft 12 and the heavy aggregator 15 is reduced, thereby reducing the friction of the heavy aggregator 15. The friction between the yarn and the heavy accumulator 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 from back to front into the reaccumulation trough , the strand 1 is conveyed forward synchronously with the re-accumulating groove, and the re-accumulating groove gathers and gathers the edge of the strand 1, and conveys the strand at the same time, which can effectively reduce the width of the twisting triangle area and re-accumulate the strand that is about to be yarn , so that the floating fibers on the surface of the sliver 1 can be embedded in the sliver 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 center of the yarn , to form 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.

Claims (1)

1. A re-gathering spinning method with the active rotation of the support shaft, which includes installing a fiber-refining device (4) on the spacer or the cradle in the front drafting area of the ring spinning frame, and the strands (1) pass through The holding jaw composed of the lower apron (2) and the upper apron (3) is fed into the whole fiber processing device (4), and the strands (1) after being gathered and autoleveled by the whole fiber processing device (4) , output from the front nip composed of the front top roller (5) and the front roller (6), enter the front nip composed of the front top roller (5) and the front roller (6). The guide hook (8), the steel ring (9) and the traveler (10) are wound on the spun yarn bobbin (11), and it is characterized in that: one end of the supporting shaft (12) of the heavy gathering device (7) A transmission gear (13) is provided, the transmission gear (13) is fixed between the bracket (14) and the heavy aggregator (15), the transmission gear (13) is engaged with the roller (6), and the support shaft (12) is movable In the axle sleeve (16), the axle sleeve is fixed on the support (14).