Intelligent full-process dehairing fiber blending compact sirospun yarn production line

Abstract

The application discloses a full-process intelligent dehairing fiber blending compact cellophane spinning production line, which comprises a control system and a dehairing fiber sliver production line, a colored fiber sliver production line, a cotton roll cutting device, a slivering system, a roving frame, a spinning frame, a bobbin device, a slivering system waste cotton collecting system, a roving frame waste cotton collecting device, a spinning frame waste cotton collecting device, a pre-sluivering machine waste cotton collecting device, a first waste slivering tearing device and a second waste slivering tearing device connected with the control system. The first waste slivering tearing device is connected with the slivering system waste cotton collecting system, the roving frame waste cotton collecting device and the spinning frame waste cotton collecting device respectively. The second waste slivering tearing device is connected with the cotton mixing disc group of the first cotton picker, and the first waste slivering tearing device is connected with the second cotton picker. The production line can recycle waste cotton, improve the uniformity of raw material mixing, reduce the difference in sliver properties and be more convenient for the yarn quality of the final product.

Description

Technical Field

[0001] This invention relates to the field of spinning technology, and in particular to a fully intelligent production line for blended denier fiber compact Siro spinning. Background Technology

[0002] For the traditional cotton textile industry, actively exploring green, environmentally friendly, and technologically advanced emerging textiles is an essential path for textile enterprises to adjust their internal structure, transform their development model, and realize the dream of becoming a textile powerhouse. Vigorously promoting differentiated and functional fibers, and diversifying yarn varieties to meet the ever-changing demands of human technological development and the diverse and fashionable needs of everyday clothing is an inevitable choice for enhancing the market competitiveness of cotton textile enterprises.

[0003] Dron is a novel polyacrylonitrile fiber produced by Dralon GmbH in Germany using dry spinning technology. It combines ultrafineness, unique shape, low carbon footprint, and environmental friendliness, making it unique in the current acrylic fiber market. Dron fiber has a unique double-T (dog-bone) cross-section, a soft and fluffy texture, good warmth retention, a gentle luster, and a wicking effect, resulting in fabrics with good breathability and moisture permeability, soft drape, and warm comfort. The disadvantages of Dron fiber are poor lap formation during spinning. Furthermore, spinning generates a large amount of waste, which is not adequately recycled through automated methods, leading to significant waste. In existing technologies, when utilizing waste, factors such as the degree of fiber mixing and carding can easily damage the fibers, exacerbating lap formation difficulties. For four-roller compact spinning, problems such as uneven drafting can also occur when producing differentiated fiber yarns. Summary of the Invention

[0004] The purpose of this invention is to provide a fully intelligent production line for blended denier fiber compact Siro spinning, addressing the shortcomings of existing technologies.

[0005] The technical solution adopted in this invention is as follows.

[0006] The fully intelligent production line for blended and compact Siro spinning of Derong fiber is characterized by: a control system and a colored fiber sliver production line connected to the control system, a Derong fiber sliver production line, a cotton lap splitting device, a drawing frame system, a roving frame, a spinning frame, a winding device, a waste cotton collection system for the drawing frame system, a waste cotton collection device for the roving frame, a wind cotton collection device for the spinning frame, a waste cotton collection device for the pre-drawing frame, a first waste drawing frame tearing device, and a second waste drawing frame tearing device.

[0007] The colored fiber sliver production line includes a cotton blending disc group, a first cotton grabber, a cotton blending opener, a first cotton opener, a first cotton feeder, a first lap forming machine, a first carding machine, and a pre-drawing machine arranged in sequence. The cotton blending disc group includes several circular arrays of cotton blending discs. When the first cotton grabber grabs raw materials, it grabs one layer of raw materials in each ring of the cotton blending disc group in sequence to achieve uniform mixing.

[0008] The first lap former is connected with the lap dividing device, and the lap dividing device is connected with each blending disc of the blending disc group through pipelines or a conveying trolley.

[0009] The De-fiber sliver production line comprises a second gigger, a multi-bin blending machine, a second opener, a second gigger, a second lap former, and a second carding machine; a warming rod is arranged on the lap forming roller of the second lap former.

[0010] The second carding machine and the pre-drawing frame are connected with the drawing system, and the drawing system is connected with the roving frame, the spinning frame, and the bobbin winding device in sequence; the spinning frame adopts four-rooler compact spinning, and the small roller has a diameter of 18.7 mm.

[0011] The drawing system waste cotton collection system is connected with the drawing system, the roving frame waste cotton collection device is connected with the roving frame, and the spinning frame waste cotton collection device is connected with the spinning frame.

[0012] The first waste drawing tearing device is connected with the drawing system waste cotton collection system, the roving frame waste cotton collection device, and the spinning frame waste cotton collection device.

[0013] The pre-drawing frame is connected with the pre-drawing frame waste cotton collection device, and the second waste drawing tearing device is connected with the pre-drawing frame waste cotton collection device through a pipeline.

[0014] The second waste drawing tearing device is connected with the blending disc group of the first gigger, and the first waste drawing tearing device is connected with the second gigger.

[0015] The first waste drawing tearing device and the second waste drawing tearing device have the same structure, and are both waste drawing frames from which the frontmost skin roller of four skin rollers is removed.

[0016] As a preferred technical solution, the drawing system comprises a first drawing frame, a second drawing frame, and a third drawing frame connected in sequence; the second carding machine and the pre-drawing frame are connected with the first drawing frame; and the third drawing frame is connected with the roving frame, the spinning frame, and the bobbin winding device in sequence.

[0017] As a preferred technical solution, the drawing system waste cotton collection system comprises a first drawing frame waste cotton collection device, a second drawing frame waste cotton collection device, and a third drawing frame waste cotton collection device; the first drawing frame waste cotton collection device is connected with the first drawing frame; the second drawing frame waste cotton collection device is connected with the second drawing frame; the third drawing frame waste cotton collection device is connected with the third drawing frame; and the first drawing frame waste cotton collection device, the second drawing frame waste cotton collection device, and the third drawing frame waste cotton collection device are connected with the first waste drawing tearing device through pipelines.

[0018] As a preferred technical solution, the roving frame is a BHFA497 type roving frame.

[0019] As a preferred technical solution, the spinning frame is a FA506 type spinning frame.

[0020] As a preferred technical solution, the winding device is a QPRO-60 type automatic winding machine.

[0021] As a preferred technical solution, the pre-drawing frame is a FA320A type drawing frame.

[0022] As a preferred technical solution, the multi-warehouse cotton mixing machine is a FA022 type multi-warehouse cotton mixing machine.

[0023] As a preferred technical solution, the first cotton opener is a FA106 type cotton opener.

[0024] As a preferred technical solution, the second cotton opener is a FA106A type cotton opener.

[0025] The beneficial effects of the present application are:

[0026] 1. The second waste drawing tearing device is connected with the pre-drawing frame waste cotton collecting device through a pipeline, and the first waste drawing tearing device is connected with the second cotton picker, which comprehensively utilizes the waste strips.

[0027] 2. When mixing raw fibers containing colored fibers, first mix the raw fibers, then open the cotton through the mixing cotton opener, and then begin to card the cotton after the second winding. Before combining, the slivers containing colored fibers are pre-drawing, which can significantly reduce the weight unevenness of the slivers after mixing the raw materials and waste materials, and is beneficial to increasing the overall mixing uniformity of the raw materials, reducing the differences in various properties, and more conveniently improving the yarn quality of the final product. Through these means, the waste materials are recycled, the mixing uniformity of the raw materials is improved, the differences in various properties are reduced, and the yarn quality of the final product is more convenient.

[0028] 3. The winding roller of the winder is provided with a warming rod, which is warmed according to the characteristics of the cashmere fiber to prevent the fiber from sticking to the roll, and facilitates the smooth unwinding of the cotton lap in the carding process.

[0029] 4. The spinning frame adopts four-rooler compact spinning, and the small roller diameter is Ф18.7mm; the production of differential fiber yarns is prone to problems such as uneven drafting.

[0030] 5. The cashmere fiber and other mixed fibers containing colored raw materials are produced into slivers separately, which can prevent the fabric from having abnormal color spots after the yarns are made into fabrics.

[0031] 6. The first waste drawing tearing device and the second waste drawing tearing device are the same structure, which are waste drawing machines with the first four drawing aprons removed, and the waste cotton collection and tearing are automatically completed, saving labor.

[0032] 7. The production line of the application combines the advantages of compact spinning and siro spinning, and the compact siro yarn has the advantages of high single yarn strength, even yarn evenness, compact structure, good wear resistance, less hairiness, and smooth yarn, and has both strand style and single yarn properties. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a schematic diagram of a preferred embodiment of the full-process intelligent De Rigo fiber blended compact siro spinning production line of the application. Figure 2 is a schematic diagram of a preferred embodiment of the full-process intelligent De Rigo fiber blended compact siro spinning production line of the application.

[0034] Among them: cotton mixing disc group-11; first cotton grabber-12; mixed cotton opener-13; first cotton opener-14; first cotton feeder-15; first cotton winder-16; first cotton carding machine-17; pre-parallel winder-18;

[0035] Second cotton grabber-21; multi-compartment cotton mixer-22; second cotton opener-23; second cotton feeder-24; second cotton winder-25; second cotton carding machine-26;

[0036] Cotton roll dividing device-3; conveying trolley-31;

[0037] Parallel winder system-4; first parallel winder-41; second parallel winder-42; third parallel winder-43;

[0038] Roving frame-5;

[0039] Spinning frame-6;

[0040] Winding device-7;

[0041] Parallel winder system waste cotton collection system-81; first parallel winder waste cotton collection device-811; second parallel winder waste cotton collection device-812; third parallel winder waste cotton collection device-813;

[0042] Roving frame waste cotton collection device-82; spinning frame waste cotton collection device-83; pre-parallel winder-18; waste cotton collection device-84;

[0043] First waste parallel winder tearing device-91; second waste parallel winder tearing device-92. DETAILED DESCRIPTION

[0044] In the following, the application will be further described in conjunction with the drawings and examples.

[0045] Example 1. As Figure 1As shown, the whole-process intelligent deersuede fiber blending compact coper spinning production line is characterized in that it comprises a control system and a colored fiber sliver production line, a deersuede fiber sliver production line, a cotton lap dividing device 3, a drawing system 4, a roving frame 5, a spinning frame 6, a bobbin winding device 7, a drawing system waste cotton collecting system 81, a roving frame waste cotton collecting device 82, a spinning frame waste cotton collecting device 83, a pre-drawing frame waste cotton collecting device 84, a first waste drawing tearing device 91 and a second waste drawing tearing device 92 connected with the control system.

[0046] The colored fiber sliver production line comprises, in sequence, a cotton blending disc group 11, a first cotton grabbing machine 12, a cotton blending machine 13, a first cotton opening machine 14, a first cotton feeding machine 15, a first lap forming machine 16, a first cotton carding machine 17 and a pre-drawing frame 18.

[0047] The first lap forming machine 16 is connected with the cotton lap dividing device 3, and the cotton lap dividing device 3 is connected with each cotton blending disc of the cotton blending disc group 11 through conveying.

[0048] The deersuede fiber sliver production line comprises a second cotton grabbing machine 21, a multi-compartment cotton blending machine 22, a second cotton opening machine 23, a second cotton feeding machine 24, a second lap forming machine 25 and a second cotton carding machine 26.

[0049] The second cotton carding machine 26 and the pre-drawing frame 18 are connected with the drawing system 4, and the drawing system 4 is connected with the roving frame 5, the spinning frame 6 and the bobbin winding device 7 in sequence.

[0050] The drawing system waste cotton collecting system 81 is connected with the drawing system 4, the roving frame waste cotton collecting device 82 is connected with the roving frame 5, and the spinning frame waste cotton collecting device 83 is connected with the spinning frame 6.

[0051] The first waste drawing tearing device 91 is connected with the drawing system waste cotton collecting system 81, the roving frame waste cotton collecting device 82 and the spinning frame waste cotton collecting device 83 through pipelines.

[0052] The pre-drawing frame 18 is connected with the pre-drawing frame waste cotton collecting device 84, and the second waste drawing tearing device 92 is connected with the pre-drawing frame waste cotton collecting device 84 through a pipeline.

[0053] The second waste drawing tearing device 92 is connected with the cotton blending disc group 11 of the first cotton grabbing machine 12 through conveying, and the first waste drawing tearing device 91 is connected with the second cotton grabbing machine 21 through conveying.

[0054] The first waste slivering tearing device 91 and the second waste slivering tearing device 92 are of the same structure, and are waste slivering machines with the frontmost slivering roller of four slivering rollers removed.

[0055] As a preferred technical solution, the slivering system 4 comprises a first slivering machine 41, a second slivering machine 42, and a third slivering machine 43 connected in sequence; the second carding machine 26 and the pre-slivering machine 18 are connected with the first slivering machine 41; the third slivering machine 43 is connected with the roving machine 5, the spinning machine 6, and the winding device 7 in sequence.

[0056] As a preferred technical solution, the slivering system waste cotton collecting system 81 comprises a first slivering machine waste cotton collecting device 811, a second slivering machine waste cotton collecting device 812, and a third slivering machine waste cotton collecting device 813; the first slivering machine waste cotton collecting device 811 is connected with the first slivering machine 41; the second slivering machine waste cotton collecting device 812 is connected with the second slivering machine 42; the third slivering machine waste cotton collecting device 813 is connected with the third slivering machine 43; the first slivering machine waste cotton collecting device 811, the second slivering machine waste cotton collecting device 812, and the third slivering machine waste cotton collecting device 813 are connected with the first waste slivering tearing device 91 through pipelines respectively.

[0057] The roving machine 5 is a BHFA497 type roving machine 5.

[0058] The spinning machine 6 is a FA506 type spinning machine 6.

[0059] The winding device 7 is a QPRO-60 type automatic winding machine.

[0060] The pre-slivering machine 18 is a FA320A type slivering machine.

[0061] The multi-warehouse cotton blending machine 22 is a FA022 type multi-warehouse cotton blending machine 22.

[0062] The first cotton opener 14 is a FA106 type cotton opener.

[0063] The second cotton opener 23 is a FA106A type cotton opener.

[0064] The blended yarn produced includes 48% lanex mull, 32% de-rong acrylic fiber, and 20% graphene fiber according to the weight ratio; the blended yarn number is 11.8 tex; and the production process specifically comprises the following steps.

[0065] Step 1: raw material preparation step in production process

[0066] Before opening and cleaning, the modal fiber, the cashmere acrylic fiber and the graphene fiber are packaged, the packing belt is cut in the pre-opening room, and is placed for more than 24 hours to balance the temperature and humidity environment in the workshop; the temperature in the workshop is controlled to be 28-32 DEG C, and the relative humidity in the workshop is controlled to be 58%-62%; the modal fiber is treated to make the moisture regain reach 12.41%.

[0067] Step 2: opening and cleaning step in the production process:

[0068] A plurality of ring arrays of mixing cotton discs are arranged to form a mixing cotton disc group 11, the modal fiber and the graphene fiber are divided into a plurality of parts, each part is placed in a mixing cotton disc, and the raw materials are grabbed by a first cotton grabbing machine 12 and are opened, mixed and impurity-removed by a first opening and mixing cotton machine 13; when the first cotton grabbing machine 12 grabs the raw materials, one layer of raw materials is grabbed in each mixing cotton disc ring in turn each time to achieve the purpose of uniform mixing.

[0069] The first cotton grabbing machine 12 grabs the raw materials, and then the raw materials are opened, carded and impurity-removed by a first opening cotton machine 14, are uniformly transported by a first cotton feeding machine 15, and are uniformly mixed and formed into a roll by a first roll forming machine 16, so that a first cotton roll is obtained; the first cotton roll is divided into a plurality of parts, each part is placed in a mixing cotton disc, and then the raw materials are grabbed by the first cotton grabbing machine 12 along the mixing cotton discs in a ring shape on the horizontal plane, are opened, mixed and impurity-removed by the first opening and mixing cotton machine in turn, are opened, carded and impurity-removed by the first opening cotton machine 14, are uniformly transported by the first cotton feeding machine 15, and are uniformly mixed and formed into a roll by the first roll forming machine, so that a second cotton roll is obtained; the second cotton roll has the following quality indexes: the length of the cotton roll is 27 m, the wet weight of the cotton roll is 405 g / m, the elongation is 2.63%, and the unevenness of the meter weight is 1.0%.

[0070] The cashmere acrylic fiber is placed in a second cotton grabbing machine 21, is grabbed and mixed by the second cotton grabbing machine 21 and a multi-compartment mixing cotton machine 22, is opened, carded and impurity-removed by a second opening cotton machine 23, is uniformly transported by a second cotton feeding machine 24, and is formed into a roll by a second roll forming machine 25, so that a third cotton roll is obtained; the roll forming roller of the second roll forming machine 25 is provided with a heating rod, and the heating temperature of the roll forming roller is 70-80 DEG C; when the second roll forming machine 25 forms the roll, the cashmere acrylic fiber roving is used as a separator; the third cotton roll has the following quality indexes: the length of the cotton roll is 27 m, the wet weight of the cotton roll is 403 g / m, the elongation is 1.44%, and the unevenness of the meter weight is 0.9%.

[0071] Step 3: carding process in the production process:

[0072] The second cotton roll is put into the first carding machine for carding to obtain the graphene modal sliver; the cylinder speed is slightly higher to reduce the needle surface load and enhance the carding, and the speed is set to 330 r / min; the taker-in speed is appropriately reduced, which is beneficial to fiber transfer, and the taker-in speed is set to 780 r / min; since the raw material contains less impurities, the flat speed is controlled to be 88.4 mm / min; in order to improve the quality of the cotton web, the doffer speed is reduced to 22 r / min; in order to fully card the fibers, the five-point spacing between the cylinder and the movable flat is set to 0.18 mm*0.16 mm*0.16 mm*0.16 mm*0.18 mm; the graphene modal sliver has a weight of 18.8 g / 5 m, a neps content of 4 neps / g, a cotton web grade of first grade, and a weight unevenness of less than 3.5%; the clarity and fiber straightness of the cotton web are improved, the formation of black star harmful yarn defects of the graphene blended yarn is prevented, suitable card clothing types are configured, the flat card clothing type is TPT-52, the doffer card clothing type is AD4030*01870, and the cylinder card clothing type is AC2030-01740; A1 defects are strictly controlled, and tracking tests are well done on the first carding machine, the doffer and the taker-in are mainly checked, the A1 defects are controlled to be less than 100 per 100,000 m; the machine is kept clean, and the machine is prevented from being hung with flowers to avoid defects in the cotton web; the dust filtering effect is improved to reduce the short fiber accumulation phenomenon, the air suction pipeline is kept unobstructed, and the machine is prevented from being hung with flowers to avoid affecting the quality of the cotton web; the cotton web cleaner part must be kept clean at any time, once the cotton web cleaner is blocked, a large number of neps are generated in the cotton web, which seriously endangers the quality of the sliver.

[0073] The third cotton lap is put into the second carding machine 26 for carding to obtain the de-fleece acrylic sliver; the slightly higher cylinder speed can reduce the load on the needle surface and enhance the carding, and the speed is set to 330 r / min; the taker-in speed is appropriately reduced, which is beneficial to fiber transfer, and the taker-in speed is set to 850 r / min; the flat speed is reduced due to the small amount of impurities in the raw material, and the flat speed is controlled to be 88.4 mm / min; the doffer speed is slightly lower, which is beneficial to improving the quality of the cotton web, and the doffer speed is set to 22 r / min. In order to fully card the fibers, the five-point gauge of the cylinder and the movable flat is 0.18 mm*0.16 mm*0.16 mm*0.16 mm*0.18 mm; the de-fleece acrylic sliver has a weight of 19g-19.2g / 5m, a neps and trash content of 4 particles / g, a cotton web grade of first grade, and a weight unevenness of less than 3.5%; the clarity and fiber straightness of the cotton web are improved, harmful yarn defects formed by the de-fleece acrylic blended yarn are prevented, suitable needle cloth types are configured, the flat needle cloth type is TPT-52, the doffer needle cloth type is AD4030*01870, and the cylinder needle cloth type is AC2030-01740; the A1 defects are strictly controlled, the carding machines are tracked and tested one by one, the doffer and the taker-in are mainly checked, the A1 defects are controlled to be less than 100 per 100,000 m; the machine is kept clean to prevent the flowers from being hung into the cotton web to cause defects; the dust filtering effect is improved to reduce the short fiber accumulation phenomenon, the air suction pipelines are kept unobstructed, and the flowers are not hung to avoid affecting the quality of the cotton web; the cleaner of the cotton web must be cleaned at any time, and once the cleaner is blocked, a large amount of neps are generated in the cotton web, which seriously endangers the quality of the sliver.

[0074] Step 4: Pre-drawing step in the production process

[0075] In order to further reduce the weight unevenness of the sliver, mix the graphene modal and de-fleece acrylic fibers sufficiently, and promote the accurate blending ratio, the graphene modal sliver is pre-drawn in the pre-drawing machine 18 before being blended to obtain the pre-drawn sliver; the pre-drawing number is 6, the pre-drawn sliver has a wet weight of 16.4g / 5m, a back-drawing multiple of 1.82, a roller gauge of 11*10*20mm, and an output speed of 170m / min; the waste sliver generated by pre-drawing is collected, combined, and then torn into second waste sliver, which is sent to the blending disc.

[0076] Step 5: Drawing process step in the production process

[0077] The pre-drawn sliver and the de-fleece acrylic sliver are drawn one by one, two by two, and three by three to obtain the three-drawing mixed sliver. The one-drawing is performed on the first drawing machine 41, the two-drawing is performed on the second drawing machine 42, and the three-drawing is performed on the third drawing machine 43.

[0078] The five pre-parallel strips and two cashmere acrylic slivers are mixed together to obtain a mixed sliver, the wet weight of the mixed sliver is 17.0 g / 5 m, the back draft ratio is 1.86, the roller gauge is 11*10*20 mm, and the sliver output speed is 182 m / min. Due to the different fiber properties in the graphene blended yarn, in order to keep the fibers in the yarn structure consistent, the positions of the slivers are fixed when the slivers are fed into the machine, so as to ensure the uniformity of the fabric style.

[0079] The number of the second parallel mixed slivers is six, the wet weight of the second parallel mixed sliver is 16.3 g / 5 m, the back draft ratio is 1.59, the roller gauge is 11*10*20 mm, and the sliver output speed is 185 m / min.

[0080] The number of the third parallel mixed slivers is six, in order to prevent and control the yarn black star, the process speed is appropriately reduced, the sliver output speed is 180 m / min, the wet weight of the third parallel mixed sliver is 16 g / 5 m, the back draft ratio is 1.59, and the roller gauge is 11*10*20 mm.

[0081] During the slivering process, the cotton wax in the yarn channel is timely removed, the fibers are kept in a straightened state during the drafting process, the fiber hook phenomenon is reduced, the fibers are kept flat and the sliver is smooth; the operation management is strengthened, the protection work is done well, and high slivers and messy slivers are not allowed; the protective cover is kept well covered to prevent flying particles from being attached and to prevent adhesion between other semi-finished products to cause mixed fiber phenomenon.

[0082] Step 6: Roving process step in production process:

[0083] The third parallel mixed sliver is processed into a roving in the roving process; the roving is completed in the roving machine 5; the roving process adopts the process principles of low speed, large gauge, heavy pressure, large twist factor, and small back draft; since the yarn is a siro compact spinning variety, the roving weight is designed to be the largest under the premise of meeting the drafting requirements of the yarn; the graphene fiber is a black fiber, and the isolation protection work is done well to prevent semi-finished product collision and fiber floating, which causes mixed fiber phenomenon; high-density nylon net is used between the graphene blended yarn machine and the adjacent variety machine to achieve strict isolation protection; the roving transportation vehicle and the container for storing the roving are dedicated, and the mixed use and mixed placement with other variety containers are strictly prevented; the roving process parameters are as follows: back draft ratio is 1.18, twist factor is 80.1, roller gauge is 27*39 mm, and spindle speed is 750 r / min.

[0084] Step 7: Yarn process step in production process:

[0085] The spun yarn is completed in the spinning frame 6, two rovings are combined into a slubbing yarn after being drafted in the spinning process; the management of the slub compact spinning collection area is strengthened, and the two slubs of the collection area are kept clear and stable; for four roller compact spinning, the selection of the small roller diameter is very critical, the small roller diameter is Ф18.7 mm, and the phenomenon of unsmooth drafting of the slub is solved; when the doffing or temporary parking occurs, the negative pressure fan must be turned off, otherwise the dust will be collected in the air suction groove of the special-shaped tube, attached to the slub of the collection area, and the whole yarn will be covered with coal ash, the longer the parking time is, the more obvious the coal ash defect yarn is; the DW-1 spinning spindle scanning instrument and the special yarn tube containing a chip are applied, the backward spindles are regularly checked for quality alarm, and quality tracking and rectification are carried out in time to eliminate the backward spindles, reduce the inter-spindle cvb quality difference, and keep the finished yarn quality stable and consistent; the auxiliary light source is increased to improve the illumination, and the broken ends are found in time and connected;

[0086] The spinning process parameters are as follows: total draft ratio 61, back draft ratio 1.18, twist factor 363, roller gauge 20*50 mm, front roller speed 155 r / min, and gauge block 2.3 mm;

[0087] The waste cotton generated in the drawing, roving and spinning processes is collected, the first waste slub is formed after being combined, the first broken slub is formed by tearing the first waste slub, and is sent to the second cotton grabbing machine 21 for recycling.

[0088] Step 8: the winding process step in the production process:

[0089] The winding is completed in the winding device 7, in order to prevent the black star of graphene blended yarn, the winding speed is set to 1150 m / min; the electric clear FD foreign fiber clearing limit process parameter is closed; because the electronic clearer can intelligently identify the yarn body, and the yarn defect is removed on the basis of the average value of the base yarn, the yarn defect is converted into a percentage reference, therefore, the production species grouping setting should not be less than 10 spindles per group.

[0090] The modal fiber has a specification of 1.30 dtex*39 mm, a dry breaking strength of 3.5 cN / dtex, a dry breaking elongation of 14%, a volume specific resistance of 3.3*10 7 Ω*cm, and a moisture regain of 10.52%;

[0091] The dacron acrylic fiber has a specification of 1.3 dtex*40 mm, is bright, has a dry breaking strength of 2.6 cN / dtex, a dry breaking elongation of 27%, a volume specific resistance of 1.55*10 6 Ω*cm, and a moisture regain of 2.10%;

[0092] The graphene fiber specification 1.33 dtex x 38 mm, black, dry breaking strength 2.5 cN / dtex, dry breaking elongation 20.4%, whiteness 4.5%, volume specific resistance 5.58*10 7 Ω·cm, moisture regain 12.41%;

[0093] The ring in the spinning process has large resistance, and the steel ring and the ring are configured to be suitable; PG14054GC high-precision bearing steel is used for fine polishing and chromium plating of the ring, and the steel ring of Switzerland Bracker C1ELudr10 / 0 is used; in the spinning process, double pressure bar upper pins are used.

[0094] The first picking machine 12 is an FA002A type automatic picking machine, the mixed opening machine 13 is an A035D type mixed opening machine, the first opening machine 14 is an FA106 type opening machine, the first gilling machine 15 is an A092 type gilling machine, the first winding machine 16 is an A076A type winding machine, and the pre-drawing machine 18 is an FA302 type drawing machine.

[0095] In the winding process, QPRO60 type Murata automatic winding machine is used, and Uster QUANTUM3 type electronic yarn clearer is used.

[0096] The electronic yarn clearer parameters in the winding process are: NSL1 is 240%*0.5cm, NSL2 is 150%*1.6cm, NSL3 is 85%*3.8cm, NSL4 is 55%*9.0cm, NSL5 is 28%*30.0cm, NSL6 is 17%*160.0cm, T1 is-38%*5.5cm, T2 is-25%*23.0cm, T3 is-16%*110.0cm, PF sensitivity is 30%, PF cycle number is 30, and U is 60%.

[0097] The second picking machine 21 is an FA002A type automatic picking machine, the multi-warehouse mixed cotton machine 22 is an FA022 type multi-warehouse mixed cotton machine 22, the second opening machine 23 is an FA106A type opening machine, the second gilling machine 24 is an A092A type gilling machine, the second winding machine 25 is an A076A type winding machine, and the second carding machine 26 is an A186G carding machine; the one-drawing machine is completed in the FA320A-G40 type drawing machine, the two-drawing and three-drawing are completed in the FA302 type three-drawing machine, and the roving machine is the BHFA497 type roving machine; the spinning machine is the FA506 type spinning machine.

[0098] In order to prevent the problems such as unsmooth draft, pilling, coal ash and large cvb difference between spindles in the spinning process, the control of compact spinning and draft special parts is strengthened to prevent the generation of pilling defects.

[0099] The reinforcement is to control the close spinning and drafting special parts, check whether the trumpet is deviated, whether the cradle pressure is too small, whether the cradle screw is loose, whether the negative pressure pipe joint is off and air leakage, whether the special-shaped tube cover plate air suction groove is blocked by hanging flowers, whether the tension hook part is wrapped with flowers, whether the mesh ring is damaged, and whether the transmission gear is accumulated with flowers and missing teeth.

[0100] The waste cotton generated in the slivering, roving, and spinning processes is combined by the first waste slivering and tearing device 91 to form first waste sliver and is torn to form first broken sliver.

[0101] The first waste slivering and tearing device is a waste slivering machine with the frontmost slivering roller removed.

[0102] The length of the first broken sliver is 300 mm.

[0103] The waste cotton generated in pre-slivering is combined by the second waste slivering and tearing device 92 to form second waste sliver and is torn to form second broken sliver; the second waste slivering and tearing device is a second waste slivering machine with the frontmost slivering roller removed.

[0104] The embodiment has the following beneficial effects.

[0105] 1. The price of biomass graphene fiber is 280,000 yuan per ton, and the price of acrylic modal and dralon fiber is 18% higher than that of the same grade raw material. The project is mixed with three kinds of fibers with different properties to complement the advantages of different fibers. It has the advantages of warm acrylic fiber, moisture-absorbing and comfortable modal fiber, and unique far-infrared, antibacterial, and ultraviolet-resistant features of graphene functional fiber, and the yarn has good functionality.

[0106] 2. The compact cellophane spinning is a new type of spinning technology on an improved ring spinning machine. Combining the advantages of compact spinning and cellophane spinning, two rovings are simultaneously drawn and then combined into a cellophane yarn. The compact cellophane yarn has the advantages of high single yarn strength, uniformity, compact structure, good wear resistance, less hairiness, and smooth yarn. It has both strand yarn style characteristics and single yarn properties, and the compact cellophane spinning has significantly improved various indicators compared with ordinary ring yarn. The compact cellophane yarn fabric has clear lines, good luster, wear resistance, and is not easy to pill, which is superior to any other spinning process.

[0107] 3. The winding roller of the second winding machine is provided with a warming rod. The acrylic fiber raw material is relatively fluffy. In order to prevent sticking and facilitate smooth unwinding of the cotton lap in the cotton carding process, the same type of roving is used as isolation during winding, and the warming rod is used to warm the winding roller to increase the density of the cotton lap and form a good shape.

[0108] 4. In the picking process, the three raw materials of graphene, modal, and acrylic fiber are packaged, the packing tape is cut off in the pre-opening room, and the temperature and humidity environment in the workshop is balanced. Because the moisture regain of graphene and modal fiber is small, in order to prevent the fiber from breaking and damaging during processing, it needs to be humidified to close to the standard moisture regain of 13%. When the graphene and modal raw materials are placed on the cotton table, they must be placed strictly according to the package diagram, the packages should be evenly arranged and have consistent density, and the height should be cut and the flatness should be filled to ensure consistent grabbing and avoid uneven mixing, color difference, and horizontal bar defects on the fabric surface. To ensure that graphene and modal raw materials are fully mixed, secondary winding is carried out in the picking process. In the carding process, carding is mainly used to make the fibers single and minimize fiber damage. To improve the clarity of the cotton web and the fiber straightness, and prevent black star harmful yarn defects from forming in graphene blended yarn, according to the specifications of the raw materials, appropriate needle cloth types are configured. To further reduce the weight unevenness of the sliver, fully mix graphene, modal, and acrylic fibers, and promote accurate blending ratio, the graphene and modal slivers are pre-processed before blending and mixing. Due to the different characteristics of the fibers in graphene blended yarn, in order to maintain consistent distribution of various fibers in the yarn structure, the fixed position of each sliver is ensured when the mixed sliver is fed, and the fabric style is uniform and consistent. To prevent and control the occurrence of black star yarn, the process speed is appropriately reduced, the cotton wax in the yarn channel is promptly removed, the fibers are kept in a straightened state during drafting, the fiber hooking phenomenon is reduced, and the fiber is kept flat and smooth. Strengthen operation management, do a good job of semi-finished product protection work, do not allow high slivers and messy slivers. The reserve sliver is kept covered with a protective cover to prevent flying particles from being attached and to prevent adhesion between other semi-finished products, which can cause fiber mixing. In the roving process, lower speed, larger gauge, heavier pressure, larger twist factor, and smaller after-drawing process principles are adopted. Since the yarn is a siro compact spinning variety, the roving weight is designed to be the largest under the premise of meeting the requirements of the yarn drafting. Through good isolation and protection, graphene fibers are black, and semi-finished product collisions and fiber floating can cause fiber mixing.

[0109] The key spinning equipment such as needle cloth, rubber roller, rubber ring, steel ring, and steel ring is optimized to improve the spinning performance of differentiated yarns. Through reasonable control of speed and optimization of spinning equipment, the production requirements are met.

[0110] 5. The characteristics of the three different fibers are complementary, which not only has the advantages of warmth of acrylic fiber, moisture absorption and comfort of modal fiber, but also has functional graphene fiber. After the surface treatment of drawing, single dyeing, double dyeing, and over-dyeing dyeing and finishing process, the fabric style is unique, the color is colorful, and it is popular with customers, which has a wide market prospect. Biomass graphene blended yarn belongs to both functional fiber yarn and color spinning yarn, which can reduce the dyeing process in post-processing, reduce pollution, and is beneficial to environmental protection.

[0111] 6. Waste cotton generated during the drawing, roving, and spinning processes is collected, combined to form the first waste sliver, and then torn into the first broken sliver, which is sent to the second cotton picker for recycling. This comprehensively utilizes the waste sliver (approximately 4-5% of the total raw material). Simultaneously, waste sliver generated during pre-drawing is collected, combined to form the second waste sliver, and then torn into the second broken sliver, which is sent to the blending disc. This increases the uniformity of raw material mixing, reduces differences in various properties, and optimizes the quality of the final yarn.

[0112] Example 2. (As shown) Figure 2 As shown, the difference between this embodiment and Embodiment 1 is that the cotton roll splitting device 3 is connected to the cotton blending disc group 11 via a conveying trolley 31. The resulting blended yarn, by weight, comprises 52% Lenzing Modal, 28% Delon acrylic fiber, and the remainder is graphene fiber; the blended yarn count is 11.8 tex; specifically, the following steps are included.

[0113] Step 1: Raw material preparation steps in the production process

[0114] Before opening and cleaning the cotton, the three raw material packages of Modal fiber, Delon acrylic fiber, and graphene fiber are first cut off in the pre-loosening room and left to stand for more than 24 hours to balance and adapt to the temperature and humidity environment of the workshop. The temperature in the workshop is controlled at 28℃-32℃ and the relative humidity is controlled at 58%-62%. The Modal fiber raw material is then humidified to achieve a moisture regain rate of 12.41%.

[0115] Step 2: The cotton opening and cleaning process in the production process:

[0116] A blending disc group 11, consisting of several annular arrays of blending discs, divides modal fibers and graphene fibers into several portions. Each portion is placed into a blending disc. The raw materials are picked up by a first cotton grabber 12 and then opened, mixed, and impurities removed by a blending and opening machine 13. When the first cotton grabber 12 picks up the raw materials, it picks up one layer of raw materials in each blending disc ring at a time to achieve uniform mixing.

[0117] The first cotton lap is obtained by opening, combing, and removing impurities using the first cotton opener 14, uniformly feeding the cotton layer using the first cotton feeder 15, and uniformly mixing and rolling it into a lap using the first lap forming machine 16. The lap is then divided into several portions, with each portion placed into a blending disc. The first cotton grabber 12 grabs the raw material in a circular motion along the blending disc on a horizontal plane, and then sequentially opens, mixes, and removes impurities using the first blending opener 14, opens, combs, and removes impurities using the first cotton opener 14, uniformly feeds the cotton layer using the first cotton feeder 15, and uniformly mixes and rolls it into a lap using the first lap forming machine. The quality indicators of the second cotton lap are: lap length 27m, lap wet weight 405g / m, elongation 2.63%, and weight unevenness per meter 1.0%.

[0118] Put the acrylic fiber into the second picking machine 21, and the second picking machine 21 and the multi-warehouse cotton mixing machine 22 are used for picking and mixing, the second opening machine 23 is used for opening, carding and impurity removal, the second cotton feeder 24 is used for uniform cotton layer conveying, and the second lap former 25 is used for forming a lap, so that the third lap is obtained; the lap forming roller of the second lap former 25 is provided with a heating rod, and the heating temperature of the lap forming roller is 70-80 DEG C; when the second lap former 25 is formed, the acrylic fiber is used as isolation; the third lap quality index is: lap length 27 m, lap wet weight 403 / m, elongation 1.44%, and unevenness 0.9%.

[0119] Step 3: carding process in production process:

[0120] The second lap is put into the first carding machine for carding to obtain the graphene modal sliver; the speed of the cylinder is slightly higher to reduce the needle load and enhance the carding, and the speed is set to 330 r / min; the speed of the taker-in is appropriately reduced, which is beneficial to fiber transfer, and the speed of the taker-in is set to 780 r / min; since the raw material contains less impurities, the flat speed is controlled at 88.4 mm / min; in order to improve the quality of the cotton web, the speed of the doffer is reduced to 22 r / min; in order to fully card the fiber, the five-point spacing of the cylinder and the movable flat is set to 0.18 mm*0.16 mm*0.16 mm*0.16 mm*0.18 mm; the graphene modal sliver has a weight of 18.8g-19g / 5m, a neps of 4 neps / g, a cotton web grade of first grade, and a weight unevenness of less than 3.5%; the clarity and fiber straightness of the cotton web are improved, the black star harmful yarn defect formed by the graphene blended yarn is prevented, the appropriate needle cloth type is configured, the flat needle cloth type is TPT-52, the doffer needle cloth type is AD4030*01870, and the cylinder needle cloth type is AC2030-01740; A1 defects are strictly controlled, and the first carding machine is tracked and tested, the doffer and the taker-in are mainly checked, and the A1 defects are controlled within 100 / 100,000 m; the machine is kept clean, and the flower is prevented from being hung into the cotton web to produce defects; the dust filtering effect is improved to reduce the short fiber accumulation phenomenon, the air suction pipeline is kept unobstructed, and the flower is prevented from being hung to avoid affecting the quality of the cotton web; the cotton web cleaner part must be cleaned at any time, once the cotton web cleaner is blocked, a large number of neps are generated in the cotton web, which seriously endangers the quality of the sliver.

[0121] The third cotton lap is put into the second carding machine 26 for carding to obtain the de-fleece acrylic sliver; the slightly higher cylinder speed can reduce the load on the needle surface and enhance the carding, and the speed is set to 330 r / min; the taker-in speed is appropriately reduced, which is beneficial to fiber transfer, and the taker-in speed is set to 850 r / min; due to the small amount of impurities in the raw material, the flat speed is reduced and controlled at 88.4 mm / min; the doffer speed is slightly lower, which is beneficial to improving the quality of the cotton web, and the doffer speed is set to 22 r / min. In order to fully card the fibers, the five-point gauge of the cylinder and the movable flat is 0.18 mm*0.16 mm*0.16 mm*0.16 mm*0.18 mm; the de-fleece acrylic sliver has a weight of 19g-19.2g / 5m, a neps and trash content of 4 particles / g, a cotton web grade of first grade, and a weight unevenness of less than 3.5%; the clarity and fiber straightness of the cotton web are improved, harmful yarn defects formed by de-fleece acrylic blended yarn are prevented, suitable needle cloth types are configured, the flat needle cloth type is TPT-52, the doffer needle cloth type is AD4030*01870, and the cylinder needle cloth type is AC2030-01740; A1 defects are strictly controlled, and tracking tests are well conducted on the carding machines, the doffer and the taker-in are mainly checked, and the A1 defects are controlled to be less than 100 per 100,000 m; the machine is kept clean, and flowers are strictly prevented from being hung on the cotton web to generate defects; the dust filtering effect is improved to reduce the short fiber accumulation phenomenon, the air suction pipeline is kept unobstructed, and flowers are not hung to avoid affecting the quality of the cotton web; the cotton web cleaner part must be kept clean at any time, and once the cotton web cleaner is blocked, a large number of neps are generated in the cotton web, which seriously endangers the quality of the sliver.

[0122] Step 4: Pre-drawing step in the production process

[0123] In order to further reduce the weight unevenness of the sliver, mix the graphene modal and de-fleece acrylic fibers sufficiently, and promote the accurate blending ratio, the graphene modal sliver is first subjected to pre-drawing treatment in the pre-drawing machine 18 to obtain a pre-drawing sliver before being subjected to drawing mixing; the pre-drawing number is 6, the pre-drawing sliver has a wet weight of 19.4g / 5m, a back-drawing multiple of 1.82, a roller gauge of 11*10*20mm, and an output speed of 170m / min; the waste sliver generated by pre-drawing is collected and then combined to form a second waste sliver, the second waste sliver is torn to form a second broken sliver, and the second broken sliver is sent to the cotton mixing disc.

[0124] Step 5: Drawing process step in the production process

[0125] The pre-drawing sliver and the de-fleece acrylic sliver are subjected to one-drawing, two-drawing, and three-drawing to obtain a three-drawing mixed sliver. The one-drawing is performed on the first drawing machine 41, the two-drawing is performed on the second drawing machine 42, and the three-drawing is performed on the third drawing machine 43.

[0126] The five pre-parallel strips and two cashmere acrylic slivers are mixed together to obtain a mixed sliver, the wet weight of the mixed sliver is 17.0 g / 5 m, the back draft ratio is 1.86, the roller gauge is 11*10*20 mm, and the delivery speed is 182 m / min. Due to the different fiber properties in the graphene blended yarn, in order to keep the fibers in the yarn structure consistent, the positions of the slivers are fixed when the slivers are fed, so as to ensure that the fabric style is uniform and consistent.

[0127] The number of the two-parallel mixed slivers is six, the wet weight of the two-parallel mixed sliver is 16.3 g / 5 m, the back draft ratio is 1.59, the roller gauge is 11*10*20 mm, and the delivery speed is 185 m / min.

[0128] The number of the three-parallel mixed slivers is six, in order to prevent and control the yarn black star, the process speed is appropriately reduced, the delivery speed is 180 m / min, the wet weight of the three-parallel mixed sliver is 16 g / 5 m, the back draft ratio is 1.59, and the roller gauge is 11*10*20 mm.

[0129] During the slivering process, the cotton wax in the yarn channel is timely removed, the fibers are kept in a straightened state during the drafting process, the fiber hook phenomenon is reduced, the fibers are kept flat and the sliver is smooth; the operation management is strengthened, the protection work is done well, and high slivers and wool disorder slivers are not allowed; the protective cover is kept well, the flying particles are prevented from being attached, and the mixing of fibers caused by adhesion between other semi-finished products is prevented.

[0130] Step 6: Roving process step in production process:

[0131] The three-parallel mixed sliver is processed into a roving in the roving process; the roving is completed in the roving machine 5; the roving process adopts the process principles of low speed, large gauge, heavy pressure, large twist factor, and small back draft; since the yarn is a siro-spinning compact spinning variety, the roving weight is designed to be the largest under the premise of meeting the drafting requirements of the yarn; the graphene fiber is a black fiber, the isolation protection work is done well, and the mixing of fibers caused by collision and fiber floating of semi-finished products is prevented; the high-density nylon net is used between the graphene blended yarn machine and the adjacent variety machine to achieve strict isolation protection; the roving transportation vehicle and the container for storing the roving are dedicated, and the mixing and mixing of other variety containers is prevented; the roving process parameters are as follows: the back draft ratio is 1.18, the twist factor is 80.1, the roller gauge is 27*39 mm, and the spindle speed is 750 r / min.

[0132] Step 7: Yarn process step in production process:

[0133] The spun yarn is completed in the spinning frame 6, two rovings are combined into a single roving after being drafted in the spinning process; the management of the compact spinning collection area of the roving is strengthened, and the two roving strips in the collection area are kept clear and stable; for the four roller compact spinning, the selection of the small roller diameter is very critical, the small roller diameter is Ф18.7 mm, and the phenomenon of unsmooth drafting of the roving strip is solved; when the doffing or temporary parking occurs, the negative pressure fan must be turned off, otherwise a large amount of dust will be collected in the special-shaped tube air suction groove, attached to the roving strip in the collection area, and the whole yarn will be covered with coal ash, and the longer the parking time is, the more obvious the coal ash defect yarn is; the DW-1 spinning spindle scanning instrument and the special yarn tube containing a chip are applied, the backward spindles with quality alarm are regularly investigated, and quality tracking and rectification are carried out in time, so that the backward spindles are eliminated, the inter-spindle cvb quality difference is reduced, and the finished yarn quality is kept stable and consistent; the auxiliary light source is increased, the illumination is improved, the broken ends are found in time, and the butt joint is carried out.

[0134] The spinning process parameters are as follows: total draft ratio 61-63, back draft ratio 1.18-1.20, twist factor 361-363, roller gauge 20*50 mm, front roller speed 145-155 r / min, and gauge block 2.1-2.3 mm.

[0135] The waste cotton generated in the drawing, roving and spinning processes is collected, combined to form a first waste strip, torn to form a first broken strip, and sent to the second cotton grabbing machine 21 for recycling.

[0136] Step 8: the winding process step in the production process:

[0137] The winding is completed in the winding device 7, the winding speed is set to 1100-1150 m / min in the winding device 7 to prevent the black star of the graphene blended yarn; the electric clear FD foreign fiber clearing limit process parameter is closed; since the electronic clearer intelligently identifies the yarn body, and the yarn defect removal is based on the average value of the base yarn, the yarn defect removal is converted into a percentage basis, therefore, the production species grouping setting should not be less than 10 spindles per group.

[0138] The modal fiber has a specification of 1.30 dtex*39 mm, a dry breaking strength of 3.5 cN / dtex, a dry breaking elongation of 14%, a volume specific resistance of 3.3*10 7 Ω*cm, and a moisture regain of 10.52%;

[0139] The dacron acrylic fiber has a specification of 1.3 dtex*40 mm, is bright, has a dry breaking strength of 2.6 cN / dtex, a dry breaking elongation of 27%, a volume specific resistance of 1.55*10 6 Ω*cm, and a moisture regain of 2.10%;

[0140] The graphene fiber specification 1.33 dtex x 38 mm, black, dry breaking strength 2.5 cN / dtex, dry breaking elongation 20.4%, whiteness 4.5%, volume specific resistance 5.58*10 7 Ω·cm, moisture regain 12.41%.

[0141] The ring in the spinning process has large resistance, and the steel ring and the ring are configured to be suitable; PG14054GC high-precision bearing steel is used for fine polishing and chromium plating of the ring, and the steel ring of Switzerland Bracker C1ELudr10 / 0 is used; in the spinning process, double pressure bar upper pins are used.

[0142] The first picking machine 12 is an FA002A type automatic picking machine, the mixed opening machine 13 is an A035D type mixed opening machine, the first opening machine 14 is an FA106 type opening machine, the first gilling machine 15 is an A092 type gilling machine, the first winding machine 16 is an A076A type winding machine, and the pre-drawing machine 18 is an FA302 type drawing machine.

[0143] In the winding process, QPRO60 type Murata automatic winding machine is used, and Uster QUANTUM3 type electronic yarn clearer is used.

[0144] The electronic yarn clearer parameters in the winding process are: NSL1 is 240%*0.5cm, NSL2 is 150%*1.6cm, NSL3 is 85%*3.8cm, NSL4 is 55%*9.0cm, NSL5 is 28%*30.0cm, NSL6 is 17%*160.0cm, T1 is-38%*5.5cm, T2 is-25%*23.0cm, T3 is-16%*110.0cm, PF sensitivity is 30%, PF cycle number is 30, and U is 60%.

[0145] The second picking machine 21 is an FA002A type automatic picking machine, the multi-warehouse mixed cotton machine 22 is an FA022 type multi-warehouse mixed cotton machine 22, the second opening machine 23 is an FA106A type opening machine, the second gilling machine 24 is an A092A type gilling machine, the second winding machine 25 is an A076A type winding machine, and the second carding machine 26 is an A186G carding machine; the one-drawing machine is completed in the FA320A-G40 type drawing machine, the two-drawing and three-drawing are completed in the FA302 type three-drawing machine, and the roving machine is the BHFA497 type roving machine; the spinning machine is the FA506 type spinning machine.

[0146] In order to prevent the problems such as unsmooth draft, pilling, coal ash and large cvb difference between spindles in the spinning process of the spun yarn, the control of compact spinning and draft special parts is strengthened to prevent the generation of pilling defects.

[0147] The enhanced control of the compact spinning and drafting components involves checking whether the bell mouth is misaligned, whether the cradle pressure is too low, whether the cradle screws are loose, whether the negative pressure pipe joint is detached and leaking air, whether the suction groove of the special-shaped pipe cover is clogged with fibers, whether the tension hook is wrapped with fibers, whether the mesh ring is damaged, and whether the transmission gear is clogged with fibers or missing teeth.

[0148] The waste cotton generated in the drawing, roving, and spinning processes is combined by the first waste sliver and then torn to form the first broken sliver.

[0149] The first waste sliver tearing device is a waste sliver sliver machine with the foremost roller of the four sliver sliver rollers removed.

[0150] The length of the first broken strip is 300mm.

[0151] The waste cotton generated during pre-drawing is combined by the second waste drawing and tearing device to form the second waste sliver, which is then torn to form the second sliver. The second waste drawing and tearing device is a second waste drawing machine with the foremost roller of the four drawing rollers removed.

[0152] Example 3. This example differs from Example 1 in that the blended yarn produced comprises, by weight, 50% Lenzing Modal, 30% Delon acrylic fiber, and the remainder graphene fiber; the blended yarn count is 11.8 tex; the specific steps are as follows.

[0153] Step 1: Raw material preparation steps in the production process

[0154] Before opening and cleaning the cotton, the three raw material packages of Modal fiber, Delon acrylic fiber, and graphene fiber are first cut off in the pre-loosening room and left to stand for more than 24 hours to balance and adapt to the temperature and humidity environment of the workshop. The temperature in the workshop is controlled at 28℃-32℃ and the relative humidity is controlled at 58%-62%. The Modal fiber raw material is then humidified to achieve a moisture regain rate of 12.41%.

[0155] Step 2: The cotton opening and cleaning process in the production process:

[0156] A blending disc group 11, consisting of several annular arrays of blending discs, divides modal fibers and graphene fibers into several portions. Each portion is placed into a blending disc. The raw materials are picked up by a first cotton grabber 12 and then opened, mixed, and impurities removed by a blending and opening machine 13. When the first cotton grabber 12 picks up the raw materials, it picks up one layer of raw materials in each blending disc ring at a time to achieve uniform mixing.

[0157] The first cotton opener 14 is used for opening, carding and removing impurities, the first cotton feeder 15 is used for uniform cotton layer feeding, and the first lap former 16 is used for uniform mixing and forming lap, so as to obtain the first lap; the first lap is divided into several parts, and each part of the lap is put into a mixing disc; after the first cotton grabber 12 circularly grabs the raw material along the mixing discs in the horizontal plane, the first mixing opener is used for opening, mixing and removing impurities, the first cotton opener 14 is used for opening, carding and removing impurities, the first cotton feeder 15 is used for uniform cotton layer feeding, and the first lap former is used for uniform mixing and forming lap, so as to obtain the second lap; the quality indexes of the second lap are as follows: lap length 27 m, lap wet weight 405 g / m, elongation 2.63%, and unevenness 1.0%.

[0158] The second cotton grabber 21 is used for grabbing and mixing the cashmere acrylic fiber, the second cotton opener 23 is used for opening, carding and removing impurities, the second cotton feeder 24 is used for uniform cotton layer feeding, and the second lap former 25 is used for forming lap, so as to obtain the third lap; the lap forming roller of the second lap former 25 is provided with a heating rod, and the heating temperature of the lap forming roller is 80 degrees Celsius; the cashmere acrylic fiber roving is used as isolation during the lap forming of the second lap former 25; the quality indexes of the third lap are as follows: lap length 27 m, lap wet weight 403 g / m, elongation 1.44%, and unevenness 0.9%.

[0159] Step 3: the carding process in the production process

[0160] The second cotton roll is put into the first carding machine for carding to obtain the graphene modal sliver; the cylinder speed is slightly higher to reduce the load of the needle surface and enhance the carding, and the speed is set to 330 r / min; the taker-in speed is appropriately reduced, which is beneficial to the fiber transfer, and the taker-in speed is set to 780 r / min; since the raw material contains less impurities, the flat speed is controlled to be 88.4 mm / min; in order to improve the quality of the cotton web, the doffer speed is reduced to 22 r / min; in order to fully card the fibers, the five-point spacing between the cylinder and the movable flat is set to 0.18 mm*0.16 mm*0.16 mm*0.16 mm*0.18 mm; the graphene modal sliver has a weight of 19 g / 5 m, a neps content of 4 neps / g, a cotton web grade of first grade, and a weight unevenness of less than 3.5%; the clarity and fiber straightness of the cotton web are improved, the black star harmful yarn defect formed by the graphene blended yarn is prevented, the appropriate type of card clothing is configured, the flat card clothing type is TPT-52, the doffer card clothing type is AD4030*01870, and the cylinder card clothing type is AC2030-01740; the A1 defect is strictly controlled, the tracking test of each first carding machine is well done, the doffer and the taker-in are mainly checked, the A1 defect is controlled to be less than 100 per 100,000 m; the machine is kept clean, and the lint is strictly prevented from being brought into the cotton web to generate defects; the dust filtering effect is improved to reduce the short fiber accumulation phenomenon, the air suction pipeline of each part is kept unobstructed, and the lint is not hung, so as to avoid affecting the quality of the cotton web; the cotton web cleaner part, the car blocker must be cleaned at any time, once the cotton web cleaner is blocked, a large number of neps are generated in the cotton web, which seriously endangers the quality of the sliver.

[0161] The third cotton lap is put into the second carding machine 26 for carding to obtain the de-fleece acrylic sliver; the slightly higher cylinder speed can reduce the load on the needle surface and enhance the carding, and the speed is set to 330 r / min; the taker-in speed is appropriately reduced, which is beneficial to fiber transfer, and the taker-in speed is set to 850 r / min; the flat speed is reduced due to the small amount of impurities in the raw material, and the flat speed is controlled to be 88.4 mm / min; the doffer speed is slightly lower, which is beneficial to improving the quality of the cotton web, and the doffer speed is set to 22 r / min. In order to fully card the fibers, the five-point gauge of the cylinder and the movable flat is 0.18 mm*0.16 mm*0.16 mm*0.16 mm*0.18 mm; the de-fleece acrylic sliver has a weight of 19.2 g / 5 m, a neps and trash content of 4 neps / g, a cotton web grade of first grade, and a weight unevenness of less than 3.5%; the clarity and fiber straightness of the cotton web are improved, harmful yarn defects formed by de-fleece acrylic blended yarn are prevented, suitable needle cloth types are configured, the flat needle cloth type is TPT-52, the doffer needle cloth type is AD4030*01870, and the cylinder needle cloth type is AC2030-01740; A1 defects are strictly controlled, and the carding machine is tracked and tested, the doffer and the taker-in are mainly checked, and the A1 defects are controlled to be less than 100 per 100,000 m; the machine is kept clean, and flowers are prevented from being hung on the cotton web to generate defects; the dust filtering effect is improved to reduce the short fiber accumulation phenomenon, the air suction pipeline is kept unobstructed, and flowers are prevented from being hung to affect the quality of the cotton web; the cotton web cleaner part must be kept clean at any time, and once the cotton web cleaner is blocked, a large amount of neps are generated in the cotton web, which seriously endangers the quality of the sliver.

[0162] Step 4: Pre-drawing step in the production process

[0163] In order to further reduce the weight unevenness of the sliver, mix the graphene modal and de-fleece acrylic fibers sufficiently, and promote the accurate blending ratio, the graphene modal sliver is pre-drawn in the pre-drawing machine 18 before being blended by drawing to obtain pre-drawn sliver; the pre-drawing number is 6, the pre-drawn sliver has a wet weight of 18 g / 5 m, a back-drawing multiple of 1.82, a roller gauge of 11*10*20 mm, and an output speed of 170 m / min; the waste sliver generated by pre-drawing is collected, combined, and then torn into second waste sliver, which is sent to the cotton blending disc.

[0164] Step 5: Drawing process step in the production process

[0165] The pre-drawn sliver and the de-fleece acrylic sliver are drawn by one-drawing, two-drawing, and three-drawing to obtain three-drawing mixed sliver. The one-drawing is performed on the first drawing machine 41, the two-drawing is performed on the second drawing machine 42, and the three-drawing is performed on the third drawing machine 43.

[0166] The five pre-parallel strips and two cashmere acrylic slivers are mixed together to obtain a mixed sliver, the wet weight of the mixed sliver is 17.0 g / 5 m, the back draft ratio is 1.86, the roller gauge is 11*10*20 mm, and the delivery speed is 182 m / min. Due to the different fiber properties in the graphene blended yarn, in order to keep the fibers in the yarn structure consistent, the positions of the slivers are fixed when the slivers are fed into the machine, so as to ensure the uniformity of the fabric style.

[0167] The number of the second parallel mixed slivers is six, the wet weight of the second parallel mixed sliver is 16.3 g / 5 m, the back draft ratio is 1.59, the roller gauge is 11*10*20 mm, and the delivery speed is 185 m / min.

[0168] The number of the third parallel mixed slivers is six, in order to prevent and control the yarn black star, the process speed is appropriately reduced, the delivery speed is 180 m / min, the wet weight of the third parallel mixed sliver is 16 g / 5 m, the back draft ratio is 1.59, and the roller gauge is 11*10*20 mm.

[0169] During the slivering process, the cotton wax in the yarn channel is timely removed, the fibers are kept in a straightened state during the drafting process, the fiber hooking phenomenon is reduced, the fibers are kept flat and the sliver is smooth; the operation management is strengthened, the protection work is done well, and high slivers and messy slivers are not allowed; the protective cover is kept well, the flying particles are prevented from being attached, and the mixing of fibers between other semi-finished products is prevented.

[0170] Step 6: Roving process step in production process:

[0171] The third parallel mixed sliver is processed into a roving in the roving process; the roving is completed in the roving machine 5; the roving process adopts the process principles of low speed, large gauge, heavy pressure, large twist factor, and small back draft; since the yarn is a siro-spinning compact spinning variety, the roving weight is designed to be the maximum under the premise of meeting the drafting requirements of the yarn; the graphene fiber is a black fiber, the isolation protection work is done well, and the mixing of fibers caused by the collision of semi-finished products and the floating of fibers is prevented; the high-density nylon net is used between the graphene blended yarn machine and the adjacent variety machine to achieve strict isolation protection; the roving transportation vehicle and the container for storing the roving are dedicated, and the mixing and mixing of other variety containers is prevented; the roving process parameters are as follows: the back draft ratio is 1.18, the twist factor is 80.1, the roller gauge is 27*39 mm, and the spindle speed is 750 r / min.

[0172] Step 7: Spinning process step in production process:

[0173] The spun yarn is completed in the spinning frame 6, two rovings are combined into one after being drafted in the spinning process, the management of the compact spinning collection area of the false twist is strengthened, and the two slivers in the collection area are kept clear and stable, for the four roller compact spinning, the selection of the small roller diameter is very critical, the small roller diameter is Ф18.7 mm, and the problem of unsmooth drafting of the sliver is solved, when the doffing or temporary parking occurs, the negative pressure fan must be stopped, otherwise the dust will be collected in the suction groove of the special-shaped tube, attached to the sliver in the collection area, and the whole yarn will be covered with the coal ash defect, the longer the parking time is, the more obvious the coal ash defect is, the DW-1 spinning spindle scanning instrument and the special yarn tube with the chip are applied, the backward spindles are regularly checked, and the quality tracking and rectification are timely, so that the backward spindles are eliminated, the inter-spindle cvb quality difference is reduced, and the yarn quality is kept stable and consistent, and the auxiliary light source is increased, the illumination is improved, the broken ends are timely found and connected.

[0174] The spinning process parameters are as follows: total draft ratio 63, back draft ratio 1.20, twist factor 363, roller gauge 20*50 mm, front roller speed 145-155 r / min, and gauge block 2.1-2.3 mm.

[0175] The waste cotton generated in the drawing, roving and spinning processes is collected, the first waste sliver is formed after being combined, the first waste sliver is torn to form a first broken sliver, and the first broken sliver is sent to the second cotton grabber 21 for recycling.

[0176] Step 8: the winding process step in the production process:

[0177] The winding is completed in the winding device 7, the winding speed is set to 1100-1150 m / min in the winding device 7 to prevent the black star of the graphene blended yarn, the electric clear FD foreign fiber clearing limit process parameter is closed, the electronic clearer can intelligently identify the yarn body, and the yarn defects are removed on the basis of the average value of the base yarn, and the yarn defects are removed according to the percentage conversion of the yarn reference, so that the production variety grouping setting cannot be less than 10 spindles per group.

[0178] The modal fiber has a specification of 1.30 dtex*39 mm, a dry breaking strength of 3.5 cN / dtex, a dry breaking elongation of 14%, a volume specific resistance of 3.3*10 7 Ω*cm, and a moisture regain of 10.52%;

[0179] The dacron acrylic fiber has a specification of 1.3 dtex*40 mm, is bright, has a dry breaking strength of 2.6 cN / dtex, a dry breaking elongation of 27%, a volume specific resistance of 1.55*10 6 Ω*cm, and a moisture regain of 2.10%;

[0180] The graphene fiber specification 1.33 dtex x 38 mm, black, dry breaking strength 2.5 cN / dtex, dry breaking elongation 20.4%, whiteness 4.5%, volume specific resistance 5.58*10 7 Ω·cm, moisture regain 12.41%.

[0181] The ring in the spinning process has large resistance, and the steel ring and the ring are configured to be suitable; PG14054GC high-precision bearing steel is used for fine polishing and chromium plating of the ring, and the steel ring of Switzerland Bracker C1ELudr10 / 0 is used; in the spinning process, double pressure bar upper pins are used.

[0182] The first picking machine 12 is an FA002A type automatic picking machine, the mixed opening machine 13 is an A035D type mixed opening machine, the first opening machine 14 is an FA106 type opening machine, the first gilling machine 15 is an A092 type gilling machine, the first winding machine 16 is an A076A type winding machine, and the pre-drawing machine 18 is an FA302 type drawing machine.

[0183] In the winding process, QPRO60 type Murata automatic winding machine is used, and Uster QUANTUM3 type electronic yarn clearer is used.

[0184] The electronic yarn clearer parameters in the winding process are: NSL1 is 240%*0.5cm, NSL2 is 150%*1.6cm, NSL3 is 85%*3.8cm, NSL4 is 55%*9.0cm, NSL5 is 28%*30.0cm, NSL6 is 17%*160.0cm, T1 is-38%*5.5cm, T2 is-25%*23.0cm, T3 is-16%*110.0cm, PF sensitivity is 30%, PF cycle number is 30, and U is 60%.

[0185] The second picking machine 21 is an FA002A type automatic picking machine, the multi-warehouse mixed cotton machine 22 is an FA022 type multi-warehouse mixed cotton machine 22, the second opening machine 23 is an FA106A type opening machine, the second gilling machine 24 is an A092A type gilling machine, the second winding machine 25 is an A076A type winding machine, and the second carding machine 26 is an A186G carding machine; the one-drawing machine is completed in the FA320A-G40 type drawing machine, the two-drawing and three-drawing are completed in the FA302 type three-drawing machine, and the roving machine is the BHFA497 type roving machine; the spinning machine is the FA506 type spinning machine.

[0186] In order to prevent the problems such as unsmooth draft, pilling, coal ash and large cvb difference between spindles in the spinning process of the spun yarn, the control of compact spinning and draft special parts is strengthened to prevent the generation of pilling defects.

[0187] The reinforcement is close to the spinning and drawing special control, check whether the trumpet is offset, whether the cradle pressure is small, whether the cradle screw is loose, whether the negative pressure pipe joint is off and air leakage, whether the special-shaped tube cover plate air suction groove is hanging and blocked, whether the tension hook part is wrapped, whether the mesh ring is damaged, whether the transmission gear is accumulated and the tooth is missing.

[0188] The waste cotton generated in the process of drawing, roving and spinning is combined by the first waste drawing and tearing device to form first waste drawing and tearing to form first broken drawing.

[0189] The first waste drawing and tearing device is a waste drawing machine with the first edge roller removed from the four drawing roller.

[0190] The length of the first broken drawing is 300mm.

[0191] The waste cotton generated in the process of pre-drawing is combined by the second waste drawing and tearing device to form second waste drawing and tearing to form second broken drawing; the second waste drawing and tearing device is a second waste drawing machine with the first edge roller removed from the four drawing roller.

[0192] According to the FZ / T 12051-2016 "Acrylic Viscose Fiber Blended Natural Color Yarn" superior product technical requirements, the actual test data are shown in Table 7.

[0193] Table 7 Yarn test results

[0194] Test item Example 1 test result Example 1 test result Example 3 test result Standard requirement Evaluation Linear density deviation rate (%) 1.2 0.8 1.3 ±2.0 Pass Linear density coefficient of variation (%) 0.9 0.9 1.0 ≤2.0 Pass Single yarn breaking strength (cN / tex) 13.2 13.3 13.2 ≥12.0 Pass Single yarn breaking strength coefficient of variation (%) 8.5 8.6 8.7 ≤10.0 Pass Sliver evenness coefficient of variation (%) 12.4 12.4 12.5 ≤13.0 Pass Km Neps (number / 10 cm) 3 m) 15 14 14 ≤26 Pass

[0195] The above examples only illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above examples without departing from the spirit and scope of the present application. Still belongs to the protection scope of the present application.

Claims

1. A full-process intelligent dehairing fiber blending compact siro spinning production line, characterized in that: The control system is connected with a colored fiber sliver production line, a wool fiber sliver production line, a lap dividing device (3), a drawing system (4), a roving frame (5), a spinning frame (6), a bobbin winding device (7), a drawing system waste cotton collection system (81), a roving frame waste cotton collection device (82), a spinning frame waste cotton collection device (83), a pre-drawing frame waste cotton collection device (84), a first waste drawing tearing device (91), and a second waste drawing tearing device (92). The colored fiber sliver production line comprises a cotton mixing disc group (11), a first cotton grabber (12), a cotton mixing opener (13), a first cotton opener (14), a first cotton feeder (15), a first lap former (16), a first cotton carding machine (17), and a pre-drawing frame (18) arranged in sequence. The first lap former (16) is connected with the lap dividing device (3), and the lap dividing device (3) is connected with each cotton mixing disc of the cotton mixing disc group (11) through a pipeline or a conveying trolley (31). The wool fiber sliver production line comprises a second cotton grabber (21), a multi-bin cotton mixing machine (22), a second cotton opener (23), a second cotton feeder (24), a second lap former (25), and a second cotton carding machine (26). The second lap former (25) is provided with a warming rod on a lap forming roller. The second cotton carding machine (26) and the pre-drawing frame (18) are connected with the drawing system (4) respectively, and the drawing system (4) is connected with the roving frame (5), the spinning frame (6), and the bobbin winding device (7) in sequence. The drawing system waste cotton collection system (81) is connected with the drawing system (4), the roving frame waste cotton collection device (82) is connected with the roving frame (5), and the spinning frame waste cotton collection device (83) is connected with the spinning frame (6). The first waste drawing tearing device (91) is connected with the drawing system waste cotton collection system (81), the roving frame waste cotton collection device (82), and the spinning frame waste cotton collection device (83) respectively. The pre-drawing frame (18) is connected with the pre-drawing frame waste cotton collection device (84), and the second waste drawing tearing device (92) is connected with the pre-drawing frame waste cotton collection device (84) through a pipeline. The second waste drawing tearing device (92) is connected with the cotton mixing disc group (11) of the first cotton grabber (12), and the first waste drawing tearing device (91) is connected with the second cotton grabber (21). The first waste drawing tearing device (91) and the second waste drawing tearing device (92) have the same structure, and are both waste drawing machines with the frontmost skin roller of four skin rollers removed. The roving frame (5) is a BHFA497 type roving frame (5). The spinning frame (6) is a FA506 type spinning frame (6).

2. The all-in-one intelligent carded fiber blending compact sirospun yarn production line according to claim 1, characterized in that: The drawing system (4) comprises a first drawing frame (41), a second drawing frame (42) and a third drawing frame (43) connected in sequence; the second carding machine (26) and the pre-drawing frame (18) are connected with the first drawing frame (41) respectively; the third drawing frame (43) is connected with the roving frame (5), the spinning frame (6) and the winding device (7) in sequence.

3. The all-in-one intelligent carded fiber blending compact sirospun yarn production line according to claim 2, characterized in that: The drawing system waste cotton collecting system (81) comprises a first drawing frame waste cotton collecting device (811), a second drawing frame waste cotton collecting device (812) and a third drawing frame waste cotton collecting device (813); the first drawing frame waste cotton collecting device (811) is connected with the first drawing frame (41); the second drawing frame waste cotton collecting device (812) is connected with the second drawing frame (42); the third drawing frame waste cotton collecting device (813) is connected with the third drawing frame (43); the first drawing frame waste cotton collecting device (811), the second drawing frame waste cotton collecting device (812) and the third drawing frame waste cotton collecting device (813) are connected with the first waste drawing tearing device (91) through pipelines respectively.

4. The fully integrated intelligent carded fiber blending compact spindyeasing line of claim 1, wherein: The winding device (7) is a QPRO-60 type automatic winding machine.

5. The fully integrated intelligent carded fiber blending compact spindyeasing line of claim 1 wherein: The pre-drawing frame (18) is a FA320A type drawing frame.

6. The fully integrated intelligent carded fiber blending compact spindyeasing line of claim 1 wherein: The multi-warehouse cotton mixing machine (22) is a FA022 type multi-warehouse cotton mixing machine (22).

7. The fully integrated intelligent carded fiber blending compact spindyeasing line of claim 1, wherein: The first cotton opener (14) is a FA106 type cotton opener.

8. The fully integrated intelligent carded fiber blending compact spindyeasing line of claim 1, wherein: The second cotton opener (23) is a FA106A type cotton opener.

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