A compact siro spinning production line for silkworm pupa protein fiber blended with recycled waste sliver

Abstract

The present invention discloses a silkworm pupa protein fiber blended compact siro spinning production line that can recycle waste sliver. The production line includes a control system, a non-silkworm pupa protein fiber raw material production line, a silkworm pupa protein fiber raw material production line, a drawing system, a roving frame, a spinning frame, a winding device, a drawing system waste cotton collection system, a roving frame waste cotton collection device, a spinning wind cotton collection device, a pre-drawing machine waste cotton collection device, a first waste drawing and tearing device, and a second waste drawing and tearing device. The non-silkworm pupa protein fiber raw material production line includes a first cotton plucker, a multi-bin cotton mixer, a cotton opener, a cotton feeder, and a first carding machine, which are arranged in sequence. The silkworm pupa protein fiber raw material production line includes a second cotton plucker, a baler, a blower-carding system, and a pre-drawing machine. The production line of the present invention can recycle waste cotton, improve the uniformity of raw material mixing, reduce differences in various properties, and improve the quality of yarn produced by the final product.

Description

Technical Field

[0001] The invention relates to the technical field of spinning, in particular to a compact siro-spinning production line for silkworm pupa protein fiber blending capable of recycling waste slivers. Background Art

[0002] Silkworm pupa protein fiber is a new type of protein composite fiber developed in recent years. It uses silkworm pupae as raw material. First, silkworm pupa protein is extracted and chemically modified to create a protein spinning solution. This solution is then blended with viscose spinning solution and spun to create viscose fiber containing silkworm pupa protein. In silkworm pupa protein viscose fiber, cellulose forms the core, while protein is concentrated on the surface. The two form a stable molecular bond, creating the unique sheath-core structure of silkworm pupa protein fiber. The protein content in the fiber can reach 10%-20%. Because the protein is concentrated on the fiber surface, silkworm pupa protein viscose fiber has properties similar to silk, while exhibiting superior dyeability and drape properties, making it an ideal fabric for high-end underwear, T-shirts, and spring / summer fashions. Silkworm pupa protein fiber has a nearly circular cross-section, exhibiting a distinct skin-core structure. It is not smooth longitudinally, with noticeable cracks and grooves. Its infrared spectrum is similar to that of viscose fiber as reported in the literature. Its dry and wet breaking strength, elongation at break, and initial modulus are all lower than those of standard viscose fiber, while comparable to those of standard viscose. Its crimp number, crimp ratio, crimp recovery, and crimp elasticity are all lower than those of viscose fiber. Its elasticity and mass-to-weight resistivity are also lower than those of standard viscose fiber. While modal fiber offers excellent air permeability and water absorption, and possesses the softness of cotton, the luster of silk, and the smoothness of linen, it is highly susceptible to deformation, is more expensive than standard cotton, and suffers from poor abrasion resistance. These characteristics of silkworm pupa protein fiber make it difficult to blend with other fibers, making it difficult to produce acceptable yarns.

[0003] Spinning generates a large amount of waste, which lacks automated and fully automated recycling methods, resulting in significant waste. Existing technologies often struggle to utilize waste due to factors such as fiber mixing differences, making yarn formation difficult. Carding can damage fibers, and four-roller compact spinning can lead to drafting problems when producing differentiated fiber yarns. Summary of the Invention

[0004] The purpose of the present invention is to provide a silkworm pupa protein fiber blended compact siro spinning production line that can recycle waste slivers in order to address the deficiencies of the existing technology.

[0005] The technical solutions adopted in the present invention are as follows.

[0006] A silkworm pupa protein fiber blended compact siro spinning production line capable of recycling waste slivers is characterized by comprising: a control system and a non-silkworm pupa protein fiber raw material production line connected to the control system, a silkworm pupa protein fiber raw material production line, a drawing system, a roving frame, a spinning frame, a winding device, a drawing system waste cotton collection system, a roving frame waste cotton collection device, a spinning wind cotton collection device, a pre-drawing machine waste cotton collection device, a first waste drawing and tearing device, and a second waste drawing and tearing device;

[0007] The non-silkworm pupa protein fiber raw material production line includes a first cotton plucker, a multi-bin cotton mixer, a cotton opener, a cotton feeder, a cotton conveying pipeline, and a first carding machine, which are arranged in sequence; the cotton conveying pipeline is provided with a cotton feeding pressure tester;

[0008] The silkworm pupa protein fiber raw material production line includes a second cotton plucking machine, a baling machine, a blowing and carding system, and a pre-drawing machine; the cotton bale storage area of ​​the baling machine is equipped with a microwave humidifier;

[0009] The first carding machine and the pre-drawing machine are respectively connected to the drawing system, and the drawing system is connected to the roving frame, the spinning frame, and the winding device in sequence; the diameter of the small roller of the spinning frame is greater than 18.7 mm.

[0010] The waste cotton collection system of the drawing system is connected to the drawing system, the waste cotton collection device of the roving frame is connected to the roving frame, and the waste cotton collection device of the spinning frame is connected to the spinning frame;

[0011] The first waste drawing and tearing device is respectively connected to the drawing system waste cotton collection system, the roving frame waste cotton collection device, and the spun yarn wind cotton collection device;

[0012] The pre-draw frame is connected to the pre-draw frame waste cotton collecting device through a pipeline; the second waste drawing and tearing device is connected to the pre-draw frame waste cotton collecting device through a pipeline;

[0013] The second waste drawing and tearing device is connected to the first plucking machine, and the first waste drawing and tearing device is connected to the second plucking machine;

[0014] The first waste drawing and tearing device and the second waste drawing and tearing device have the same structure, and are both waste drawing frames with the frontmost roller of the four drawing rollers removed.

[0015] As an optimal technical solution, the drawing system includes a first drawing frame, a second drawing frame, and a third drawing frame connected in sequence; the first carding machine and the pre-drawing frame are respectively connected to the first drawing frame; the third drawing frame is connected to the roving frame, the spinning frame, and the winding device in sequence.

[0016] As an optimal technical solution, the waste cotton collection system of the drawing system includes 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, the second drawing frame waste cotton collection device, and the third drawing frame waste cotton collection device are respectively connected to the first waste drawing tearing device.

[0017] As an optimal technical solution, the cleaning and carding system includes a third cotton plucker, an SCR condenser, a bale loosener, a cotton cleaner, a CFC automatic cotton feeding system, and a second cotton carding machine connected in sequence. The second cotton carding machine is connected to the pre-drawing machine, and the baler is connected to the second cotton plucker.

[0018] As the preferred technical solution, the third cotton plucker is the FA002A automatic cotton plucker.

[0019] As the preferred technical solution, the baler is the SFU110CB vertical automatic baler.

[0020] As an optimal technical solution, the roving frame is a BHFA497 roving frame

[0021] As a preferred technical solution, the spinning frame is a FA506 spinning frame;

[0022] The center distance of the rollers of the roving frame is 10*30*40mm; the diameter of the small rollers of the spinning frame is above Ф18.7mm, and the roller spacing is 20*50mm.

[0023] As a preferred technical solution, the winding device is a QPRO-60 automatic winding machine

[0024] As an optimal technical solution, the pre-drawing frame is a FA302 drawing frame.

[0025] The beneficial effects of the present invention are as follows.

[0026] The waste cotton generated during the drawing, roving, and spinning processes is collected and combined to form the first waste sliver. This first waste sliver is then torn into first broken slivers and fed to the second plucker for recycling. The pre-drawing waste sliver is collected and combined to form the second waste sliver. This second waste sliver is then torn into second broken slivers and fed to the first plucker, thus comprehensively utilizing the waste slivers. The first broken slivers are fed to the second plucker, while the second broken slivers are fed to the first plucker. This increases the uniformity of the raw material mixing, reduces the variability in the mixing properties, and improves the quality of the final yarn. The first and second waste draw frame tearing devices have the same structure: both are waste draw frames without the frontmost roller of the four draw frame rollers. Waste collection and tearing are automated, saving labor. The diameter of the small rollers in the spinning frame is kept at a minimum of Ø18.7 mm. The production of differentiated fiber yarns is prone to problems such as drafting irregularities. The silkworm pupa protein fiber raw material production line includes a second cotton grabber, a baler, a blowing and carding system, and a pre-drawing machine. The blowing and carding system is suitable for the production of silkworm pupa protein fiber slivers. At the same time, through pre-drawing, the weight unevenness of the slivers after the silkworm pupa protein fiber is mixed with waste can be significantly reduced. At the same time, it is beneficial to increase the overall mixing uniformity of the raw materials, reduce the differences in various properties, and facilitate the yarn quality of the final product. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The present invention is a schematic diagram of a compact siro-spinning production line for recycling silkworm pupa protein fiber blended with waste slivers.

[0028] Among them: first cotton plucker - 11; multi-bin cotton mixer - 12; cotton opener - 13; cotton feeder - 14; cotton conveying pipeline - 15; first carding machine - 16;

[0029] Second plucker - 21; Baler - 22; Blowing-carding system - 23; Third plucker - 231; SCR condenser - 232; Bale opener - 233; Cleaner - 234; CFC automatic cotton feeding system - 235; Second carding machine - 236; Pre-draw frame - 24;

[0030] Drawing system-3; first drawing frame-31; second drawing frame-32; third drawing frame-33;

[0031] Roving frame-4;

[0032] Spinning frame-5;

[0033] Winding device-6;

[0034] Waste collection system for the drawing system - 71; waste collection device for the first drawing frame - 711; waste collection device for the second drawing frame - 712; waste collection device for the third drawing frame - 713; waste collection device for the roving frame - 72; waste collection device for the spun yarn - 73; waste collection device for the pre-draw frame - 74;

[0035] The first waste strip tearing device-81; the second waste strip tearing device-82. DETAILED DESCRIPTION

[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0037] Example 1. A silkworm pupa protein fiber blended compact siro spinning production line capable of recycling waste sliver, characterized by comprising: a control system and a non-silkworm pupa protein fiber raw material production line connected to the control system, a silkworm pupa protein fiber raw material production line, a drawing system 3, a roving frame 4, a spinning frame 5, a winding device 6, a drawing system waste collection system 71, a roving frame waste collection device 72, a spinning wind cotton collection device 73, a pre-drawing machine waste collection device 74, a first waste drawing frame tearing device 81, and a second waste drawing frame tearing device 82.

[0038] The non-silkworm pupa protein fiber raw material production line includes a first cotton plucking machine 11, a multi-bin cotton mixing machine 12, a cotton opener 13, a cotton feeder 14, a cotton conveying pipeline 15, and a first cotton carding machine 16, which are arranged in sequence; the cotton conveying pipeline 15 is provided with a cotton feeding pressure tester 151.

[0039] The silkworm pupa protein fiber raw material production line includes a second plucking machine 21 , a baling machine 22 , a blowing and carding system 23 , and a pre-drawing machine 24 .

[0040] The first carding machine 16 and the pre-drawing machine 24 are respectively connected to the drawing system 3, and the drawing system 3 is connected to the roving frame 4, the spinning frame 5, and the winding device 6 in sequence; the diameter of the small roller of the spinning frame 5 is above Ф18.7mm.

[0041] The drawing system waste cotton collection system 71 is connected to the drawing system 3 , the roving frame waste cotton collection device 72 is connected to the roving frame 4 , and the spinning wind cotton collection device 73 is connected to the spinning frame 5 .

[0042] The first waste drawing and tearing device 81 is respectively connected to the drawing system waste cotton collecting system 71, the roving frame waste cotton collecting device 72, and the spun yarn wind cotton collecting device 73.

[0043] The pre-drawing frame 24 is connected to the pre-drawing frame waste cotton collecting device 74 through a pipeline; the second waste drawing and tearing device 82 is connected to the pre-drawing frame waste cotton collecting device 74 through a pipeline.

[0044] The second waste drawing and tearing device 82 is connected to the first plucking machine 11 , and the first waste drawing and tearing device 81 is connected to the second plucking machine 21 .

[0045] The first waste drawing strip tearing device 81 and the second waste drawing strip tearing device 82 have the same structure, and are both waste drawing frames with the frontmost roller of the four drawing strip rollers removed.

[0046] The drawing system 3 includes a first drawing frame 31, a second drawing frame 32, and a third drawing frame 33 which are connected in sequence; the first carding machine 16 and the pre-drawing frame 24 are respectively connected to the first drawing frame 31; the third drawing frame 33 is connected to the roving frame 4, the spinning frame 5, and the winding device 6 in sequence.

[0047] The drawing system waste cotton collection system 71 includes a first drawing frame waste cotton collection device 711, a second drawing frame waste cotton collection device 712, and a third drawing frame waste cotton collection device 713. The first drawing frame waste cotton collection device 711, the second drawing frame waste cotton collection device 712, and the third drawing frame waste cotton collection device 713 are respectively connected to the first waste drawing tearing device 81 through pipelines.

[0048] The cleaning and carding system 23 includes a third cotton plucker 231, an SCR condenser 232, a bale loosener 233, a cotton cleaner 234, a CFC automatic cotton feeding system 235, and a second cotton carding machine 236, which are connected in sequence. The second cotton carding machine 236 is connected to the pre-drawing machine 24, and the baler 22 is connected to the second cotton plucker 21.

[0049] The third plucker 231 is a FA002A automatic plucker.

[0050] The baler 22 is an SFU110CB vertical automatic baler 22.

[0051] The roving frame 4 is a BHFA497 roving frame 4

[0052] The spinning frame 5 is a FA506 type spinning frame 5;

[0053] The center distance of the rollers of the roving frame 4 is 10*30*40mm from front to back; the diameter of the small rollers of the spinning frame 5 is above Ф18.7mm, and the roller spacing is 20*50mm from front to back.

[0054] The winding device 6 is a QPRO-60 automatic winding machine

[0055] The pre-draw frame 24 is a FA302 type draw frame.

[0056] In this embodiment, the non-silkworm pupa protein is modal fiber, but it can also be other fibers, such as cotton, chemical fiber, wool, etc.

[0057] The spinning process adopts the Siro compact spinning process, and the blended yarn produced includes 55% modal fiber and the rest silkworm pupa protein fiber according to the weight ratio; the blended yarn number is 11.8tex.

[0058] The specific steps include:

[0059] Step 1: Material Pretreatment

[0060] Before the cotton is opened and cleaned, the modal fiber and silkworm pupa protein viscose fiber raw materials are first packaged, the packing tapes are cut off, and the bags are placed in a loosening room for more than 24 hours to balance and adapt to the temperature and humidity environment in the workshop; the temperature in the workshop is controlled at 28℃-32℃, and the relative humidity in the workshop is controlled at 58%-62%.

[0061] Step 2: Opening and cleaning cotton:

[0062] Modal fibers are grabbed and mixed by a first plucker 11. The raw materials are then blended in a multi-bin mixer 12, opened and mixed by a cotton opener 13, and evenly transported to a cotton feeder 14 before being fed to the cotton hopper of the first carding machine via a cotton delivery pipe 15. The cotton delivery pipe 15 is equipped with a cotton feeding pressure tester 151. The tester is installed at the entrance of the cotton hopper of the first carding machine and controls the pressure to 800 Pa. This ensures uniform cotton feeding and continuous and stable cotton feeding.

[0063] The first cotton plucking machine 11 should put on the bag evenly, with consistent density, and the high should be cut and filled to ensure uniform grabbing. The beater speed is 740r / min, the cotton plucking trolley drops 3mm every time it runs one circle, the distance between the blade and the rib is generally 1mm, and the trolley runs at 2.0 r / min; the multi-bin cotton mixing machine must be manually filled, and the thickness of the cotton layer in each bin must be uniform. There must be no empty bin or bin adjustment phenomenon, and the cotton must be spread horizontally and taken directly, and the mixing must be consistent; the cotton opener speed is 480r / min, and the cotton conveying pipeline passes the cotton line at a speed of 10~13m / s.

[0064] The silkworm chrysalis protein fibers are placed in the second plucker 21, where they are picked and then transported to the baler 22 for baling. After baling, they are transported to the third plucker 231, picked, and then transported to the SCR condenser 232. They are then loosened by the bale loosening machine 233 and cleaned by the cotton cleaner 234. After being cleaned by the cotton cleaner, the silkworm chrysalis protein fibers are passed through the CFC automatic cotton feeding system 235 to form silkworm chrysalis protein fiber bundles. The cotton bale storage area of ​​the baler is equipped with a microwave humidifier, with a set relative humidity range of 58% to 62%.

[0065] The second plucking machine is FA002A type plucking machine. The bags on the second plucking machine should be even and of the same density. The high bags should be cut and filled to ensure even plucking. The beater speed is 740r / min. The plucking trolley descends 3mm every time it runs one circle. The distance that the blade extends out of the rib is generally 1-6mm. The trolley runs at a speed of 2.0 r / min.

[0066] Step 3: Carding

[0067] The first cotton bundle is fed into the first carding machine 16 for carding to obtain Modal carded sliver; a slightly higher cylinder speed can reduce the needle surface load and enhance carding, and the speed is set at 330 r / min; the licker-in speed should be reduced to facilitate fiber transfer, and the speed is set at 800 r / min; since the raw material contains less impurities, the flat speed can be reduced to 50-65 mm / min; a slightly lower doffer speed is beneficial to improve the quality of the cotton web, and is controlled at 18-26 r / min; To reduce fiber congestion and ensure adequate combing, the gauge between the cylinder and the flat is slightly larger, with a five-point gauge of 0.23*0.20*0.20*0.20*0.23mm; The card clothing model for carding should be selected appropriately to ensure both sufficient carding of the fiber and good transfer and release performance of the card clothing. The card clothing uses a small working angle and low-profile chemical fiber card clothing to reduce fiber deposition. The cylinder card clothing model is AC2030-1550-50, the doffer card clothing model is AD4030*01880P-33.5, the licker-in card clothing model is AT5610*56109, and the flat card clothing model is MCH52-110; The Modal card sliver is 18g / 5m in weight, with 4 impurities / g, the cotton web grade is excellent, and the weight unevenness rate is <3%;

[0068] The silkworm pupa protein fiber bundle is carded by the second carding machine 236 to obtain silkworm pupa protein sliver; the silkworm pupa protein sliver has a basis weight of 20.2 g / 5 m, impurities of 2 particles / g, a cotton web grade of excellent grade, and a weight unevenness rate of <2%.

[0069] Step 4: Drawing

[0070] In order to further reduce the weight unevenness of the raw strips and make the blending ratio of modal and silkworm pupa protein fiber accurate, before the drawing and mixing, the silkworm pupa protein raw strips are first pre-drawn in the pre-drawing machine 24 to obtain pre-drawn raw strips, and then the pre-drawn raw strips are combined with the modal raw strips, and then the second and third drawing are carried out.

[0071] The number of pre-drawn strands is 6, the pre-drawn wet basis weight is 21.5g / 5m, the post-draft ratio is 1.63, the roller spacing is 8*28mm front and back, and the delivery speed is 230m / min.

[0072] In the first drawing frame 31, two pre-slivers and three Modal raw slivers are used together to obtain a mixed sliver; the mixed sliver has a wet basis weight of 19g / 5m, a post-draft multiple of 1.81, and a roller spacing of 13*12*21mm; if the process speed is too high, static electricity may be easily generated, which may entangle the rollers and the top rollers, so the machine speed is appropriately reduced and the sliver delivery speed is 220m / min.

[0073] In the second drawing frame 32, the number of slivers of two draws and one draw is 6, the wet basis weight of the two draw mixed slivers is 17.0g / 5m, the post drafting ratio is 1.52, and the roller spacing is 13*12*21mm; the process speed is too high to easily generate static electricity, and the rollers and leather rollers are wrapped around, so the speed is appropriately reduced and the sliver delivery speed is 220m / min.

[0074] In the third drawing frame 33, the number of three-draw and two-draw mixed slivers is 6. The process speed is too high, which easily generates static electricity and entangles the rollers and leather rollers. The speed is appropriately reduced and the sliver delivery speed is 220m / min; the three-draw mixed sliver has a wet basis weight of 16g / 5m, a post-draft multiple of 1.33, and a roller spacing of 9*30mm front*back.

[0075] Step 5: Roving

[0076] The three-combined mixed strips are sent to the roving process to be processed into roving; the roving process is completed in the roving frame 4, and the roving process adopts the process principles of large gauge, heavy pressure, large twist coefficient and small post-drafting; the roving quantity is designed according to the maximum under the premise of meeting the spun yarn drafting requirements, and the quantity is controlled at 3.8g / m; the roving tension must be controlled during the production process to reduce the tension difference between large and small yarns, the post-draft multiple is 1.19, the twist coefficient is 91.1, the roller center distance front*middle*back is 10*30*40mm, and the spindle speed is 871r / min.

[0077] Step 6: Fine Yarn

[0078] The spinning process is completed in the spinning frame 5. After the two coarse yarns are drafted at the same time, they are combined into a siro yarn; the management of the siro compact spinning gathering area is strengthened to keep the two yarns in the gathering area clear and stable; the control of the compact spinning and drafting parts is strengthened to strictly prevent the generation of lump yarn defects, and the small roller diameter is configured to be larger, with a diameter of more than 18.7mm to prevent the drafting of the drafting sliver from being unsmooth; in case of yarn drop or temporary shutdown, the negative pressure fan is turned off to prevent the special-shaped tube suction trough from accumulating a large amount of dust, which adheres to the slivers in the gathering area and produces the whole-machine knot-shaped soot defect yarn; the DW-1 spinning spindle position scanner and the special yarn tube with chip are used to regularly check the spindles that have been delayed by quality alarms, and timely track and rectify the quality, eliminate the delayed spindles, reduce the CVB quality difference between spindles, and maintain stable and consistent yarn quality.

[0079] The spinning process parameters are: total draft ratio 71.3, back draft ratio 1.18, roller gauge front*back 20*50mm, front roller speed 160r / min, gauge block 2mm, twist coefficient 340, spindle speed 12236r / min.

[0080] The waste cotton generated in the drawing, roving and spinning processes is collected and combined to form a first waste strip, which is then torn into a first broken strip and sent to the second plucking machine 21 for recycling.

[0081] The waste strips generated by the pre-combining are collected and combined to form second waste strips, which are then torn into second broken strips in the second waste drawing and tearing device 82 and fed into the first plucking machine 11 .

[0082] The first waste drawing and tearing device 81 combines the waste cotton produced in the drawing, roving and spinning processes to form a first waste strip and tears it to form a first broken strip.

[0083] The first waste drawing frame tearing device 81 is a first waste drawing frame with the frontmost roller of four drawing frame rollers removed.

[0084] The length of the first broken strip is 260 mm.

[0085] 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%, and a volume resistivity of 3.3*10 7 Ω·cm; the modal fiber raw material was wetted to make its moisture regain reach 12.41%.

[0086] The silkworm pupa protein viscose fiber has a specification of 1.33dtex*38mm, a dry breaking strength of 2.3cN / dtex, a dry breaking elongation of 20.4%, and a volume resistivity of 3.8*10 7 Ω·cm, moisture regain 11.4%. Contains 0.57% glycine, 0.41% glutamic acid, 0.38% proline, and 0.27% aspartic acid.

[0087] After the spinning is completed, the winding process is also included; the winding device 6 is a QPRO-60 automatic winder;

[0088] The electronic yarn clearing parameters of 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%, number of PF cycles is 30, and U is 60%.

[0089] The yarn quality is shown in the table below.

[0090]

[0091] The characteristics of the process are as follows.

[0092] 1. The purchase price of silkworm pupa protein fiber is 65,000 yuan per ton, significantly saving yarn raw material costs compared to the 270,000 yuan per ton price of spun silk. By blending two fibers with different properties, this invention combines the performance characteristics of both fibers, fully demonstrating the performance advantages of silkworm pupa protein fiber and Lenzing Modal fiber. The resulting fabric has a soft feel, a bright luster, and good moisture absorption, possessing certain silk health benefits, while overcoming the shortcomings of conventional viscose fibers, such as low strength and high shrinkage.

[0093] 2. The first cotton conveying pipeline 15 is equipped with a cotton feeding pressure tester 151. Modal raw materials are relatively dry, and suitable temperature and humidity conditions are provided. A GRH-QAH / 56-TP-LCD microwave humidifier is installed in the cotton cleaning process to automatically adjust the humidification according to the set relative humidity range.

[0094] 3. Choose compact siro spinning for production. Compact siro spinning is a new spinning technology performed on a modified ring spinning frame. It combines the advantages of compact spinning and siro spinning. During the spinning process, two rovings are simultaneously drafted and then combined into a single siro yarn. Compact siro yarn has the advantages of high single yarn strength, uniform yarn length, compact structure, good abrasion resistance, low hairiness, and smooth yarn quality. It has both the style of ply yarn and the properties of single yarn. The yarn performance of compact siro spinning is significantly improved compared to that of ordinary ring yarn. In subsequent processing, it can also improve weaving efficiency, reduce the amount of waxing and sizing on the yarn, reduce environmental pollution during the desizing (dewaxing) process, and eliminate the singeing process. Fabrics produced using compact siro spun yarn have clear texture, good gloss, wear resistance, and low pilling resistance, which is unmatched by any other spinning process currently available.

[0095] 4. During the cotton opening and cleaning process. Modal and silkworm pupa protein fibers are free of impurities and only have a few defects, such as hard yarn and doubled yarn. Based on the raw material properties, the process principle of "more combing and less beating, more recovery and less elimination, and combing instead of beating" should be implemented during the cotton opening and cleaning process. This reduces fiber damage and improves the opening rate. The loosening machine consists of a flat curtain, a slanted curtain, and a beater. Its main function is to loosen the fed raw materials from coarse to fine and then mix them. The advantage of mixing after the raw materials are opened is that the mixing is more uniform and refined. The carding process should focus on combing to individualize the fibers and minimize fiber damage. It is necessary to ensure that the fibers have sufficient carding degree and that the card clothing has good transfer and release properties. The card clothing uses a small working angle and low-profile chemical fiber card clothing to reduce fiber deposition. Silkworm pupa protein fibers use a blower-combing technology and a SY1171A cotton box leveling system to achieve a more uniform sliver quantity.

[0096] 5. To reduce sliver weight unevenness and ensure an accurate blend ratio of modal and silkworm pupa protein fibers, pre-combination of silkworm pupa protein slivers was performed. By reducing the machine speed, the problem of static electricity generated by excessive process speeds, which could cause entanglement between rollers and leather rollers, was resolved.

[0097] 6. The roving process utilizes the principles of large gauge, heavy pressure, high twist coefficient, and low back draft. Since the spun yarn is a compact spun yarn, the roving quantity is designed to the maximum value while meeting the spinning machine requirements. By setting appropriate back draft and twist coefficient, the roving tension is controlled, reducing the tension difference between the large and small yarns, thereby improving the spinning quality.

[0098] 7. Since siro compact spinning involves feeding two coarse yarns at a certain distance in parallel into the spun yarn drafting zone, the drafted slivers are output by the front roller for combined twisting. When producing compact siro-spun yarns, the control of compact spinning and drafting components should be strengthened to prevent the generation of yarn defects with lumps. For four-roller compact spinning, the selection of small roller diameter configuration is very critical for the production of differentiated fiber yarns. The small roller diameter should be selected according to the type of fiber being spun, and the larger diameter should be above Ф18.7mm, which solves the problem of uneven drafting of the drafted slivers. In case of yarn dropping or temporary parking, the negative pressure fan must be turned off to solve the problem that a large amount of dust will accumulate in the suction trough of the special-shaped tube, adhere to the slivers in the accumulation area, and produce the whole yarn-shaped soot defect yarn. The longer the parking time, the more obvious the soot defect yarn. By using the DW-1 spinning spindle position scanner and special yarn tubes with built-in chips, we regularly check the lagging spindles that have issued quality alarms, and conduct quality tracking and rectification in a timely manner to eliminate lagging spindles, reduce the CVB quality differences between spindles, and maintain stable and consistent yarn quality.

[0099] 8. Key spinning equipment such as needle clothing, rubber rollers, rubber rings, steel collars, and wire rings have been optimized to improve the spinning performance of differentiated yarns and meet production needs.

[0100] 9. The knitted fabrics made of this yarn have a smooth surface and a smooth and delicate feel. They have the advantages of high strength and breathability of modal fiber and the skin care and comfort characteristics of silkworm pupa protein fiber, and are very popular among customers.

[0101] 10. The waste cotton generated in the drawing, roving and spinning processes is collected and combined to form the first waste sliver, which is torn into the first broken sliver and sent to the second cotton plucking machine for recycling; the waste sliver generated in the pre-drawing process is collected and combined to form the second waste sliver, which is torn into the second broken sliver and sent to the first cotton plucking machine, thereby comprehensively utilizing the waste sliver (accounting for about 4-5% of the total weight of the raw materials). At the same time, the waste sliver generated in the pre-drawing process is used as the modal fiber raw material, and the remaining waste sliver is used as the silkworm pupa protein raw material, thereby increasing the uniformity of raw material mixing, reducing the difference in properties between modal sliver and silkworm pupa protein fiber sliver, and improving the yarn quality of the final product.

[0102] Example 2. This example differs from Example 1 in that the blended yarn prepared comprises 60% modal fiber and the remainder silkworm pupa protein fiber by weight; the blended yarn has a yarn count of 11.8 tex.

[0103] The specific steps include:

[0104] Step 1: Material Pretreatment

[0105] Before the cotton is opened and cleaned, the modal fiber and silkworm pupa protein viscose fiber raw materials are first packaged, the packing tapes are cut off, and the bags are placed in a loosening room for more than 24 hours to balance and adapt to the temperature and humidity environment in the workshop; the temperature in the workshop is controlled at 28℃-32℃, and the relative humidity in the workshop is controlled at 58%-62%.

[0106] Step 2: Opening and cleaning cotton:

[0107] Modal fibers are grabbed and mixed by a first plucker 11. The raw materials are then blended in a multi-bin mixer 12, opened and mixed by a cotton opener 13, and evenly transported to a continuous feeder 14. The fibers are then fed to the first carding machine's cotton hopper via a cotton delivery pipe 15. The cotton delivery pipe 15 is equipped with a cotton feeding pressure tester 151. This tester, installed at the entrance to the first carding machine's cotton hopper, controls the pressure to 800 Pa, ensuring uniform cotton feeding and continuous and stable feeding.

[0108] The first cotton plucking machine 11 should put on the bag evenly, with consistent density, and the high should be cut and filled to ensure uniform grabbing. The beater speed is 740r / min, the cotton plucking trolley drops 3mm every time it runs one circle, the blade extends the rib distance generally 6mm, and the trolley runs at 2.0 r / min; the multi-bin cotton mixing machine must be manually filled, and the thickness of the cotton layer in each bin must be uniform. There must be no empty bin or bin adjustment phenomenon, and the cotton must be spread horizontally and taken straight, with consistent mixing; the cotton opener speed is 600 r / min, and the cotton conveying pipeline passes the cotton line at a speed of 10~13 m / s.

[0109] The silkworm pupa protein fiber is put into the second cotton plucking machine 21, and after being plucking by the second cotton plucking machine, it enters the baling machine 22 for packing; after being packed, it is sent to the third cotton plucking machine 231 for plucking and then sent to the SCR condenser 232, and is loosened by the loosening machine 233 and cleaned by the cotton cleaning machine 234; the silkworm pupa protein fiber after being cleaned by the cotton cleaning machine is passed through the CFC automatic cotton feeding system 235 to form a silkworm pupa protein fiber bundle.

[0110] The second plucking machine 21 should have uniform bales, consistent density, high cuts and fillings to ensure uniform grabbing. The beater speed is 740r / min, the plucking trolley drops 3mm per operation, the blade extends out of the rib distance is generally 1-6mm, and the trolley runs at 2.0 r / min.

[0111] Step 3: Carding

[0112] The first cotton bundle is fed into the first carding machine 16 for carding to obtain Modal carded sliver; a slightly higher cylinder speed can reduce the needle surface load and enhance carding, and the speed is set at 360 r / min; the licker-in speed should be reduced to facilitate fiber transfer, and the speed is set at 950 r / min; since the raw material contains less impurities, the flat speed can be reduced to 50-65 mm / min; a slightly lower doffer speed is beneficial to improve the quality of the cotton web, and is controlled at 26 r / min; To reduce fiber congestion and ensure adequate combing, the gauge between the cylinder and the flat is slightly larger, with a five-point gauge of 0.23*0.20*0.20*0.20*0.23mm; The card clothing model for carding should be selected appropriately to ensure both sufficient carding of the fiber and good transfer and release performance of the card clothing. The card clothing uses a small working angle and low-profile chemical fiber card clothing to reduce fiber deposition. The cylinder card clothing model is AC2030-1550-50, the doffer card clothing model is AD4030*01880P-33.5, the licker-in card clothing model is AT5610*56109, and the flat card clothing model is MCH52-110; The Modal card sliver is 20.2g / 5m in weight, with 4 impurities / g, the cotton web is of excellent grade, and the weight unevenness is <3%;

[0113] The silkworm pupa protein fiber cotton layer is carded by the second carding machine 236 to obtain silkworm pupa protein sliver; the silkworm pupa protein sliver has a basis weight of 20.2g / 5m, impurities of 2 particles / g, a cotton web grade of excellent grade, and a weight unevenness rate of <2%.

[0114] Step 4: Drawing

[0115] In order to further reduce the unevenness of the carded sliver weight and make the blending ratio of modal and silkworm pupa protein fiber accurate, before drawing and mixing, the silkworm pupa protein carded sliver is pre-drawn in a pre-drawing machine 24 to obtain pre-drawn sliver, and then the pre-drawn sliver is combined with the modal carded sliver, and then the second and third drawing processes are performed;

[0116] The number of pre-drawing strands is 6, the pre-drawing wet basis weight is 20g / 5m, the post-draft ratio is 1.63, the roller gauge is 8*28mm front*back, and the delivery speed is 230m / min;

[0117] In the first draw frame 31, two pre-slivers and three Modal carded slivers were combined to produce a mixed sliver. The mixed sliver had a wet basis weight of 19g / 5m, a post-draft ratio of 1.81, and a roller gauge of 13*12*21mm. High process speeds can easily generate static electricity, which can entangle rollers and top rollers. Therefore, the speed was appropriately reduced to a delivery speed of 220m / min.

[0118] In the second draw frame 32, the number of slivers mixed by the two draw frames is 6, with a wet basis weight of 17.0g / 5m, a post-draft ratio of 1.52, and a roller gauge of 13*12*21mm. Excessive process speed can easily generate static electricity, which can entangle the rollers and top rollers. The speed is appropriately reduced to a delivery speed of 220m / min.

[0119] In the third drawing frame 33, the number of slivers of the three-draw and two-draw mixed slivers is 6. The process speed is too high, which easily generates static electricity and entangles the rollers and top rollers. The speed is appropriately reduced and the sliver delivery speed is 220m / min; the wet basis weight of the three-draw mixed sliver is 16g / 5m, the rear draft ratio is 1.33, and the roller gauge is 9*30mm front*back.

[0120] Step 5: Roving

[0121] The roving process is completed in the roving frame 4, and the three-combined mixed yarn enters the roving process to be processed into roving. The roving process adopts the process principles of large gauge, heavy pressure, large twist coefficient, and small post-draft. The roving quantity is designed to the maximum under the premise of meeting the spun yarn draft requirements, and the quantity is controlled at 3.8g / m. During the production process, the roving tension must be well controlled to reduce the tension difference between large and small yarns. The post-draft multiple is 1.19, the twist coefficient is 91.1, the roller center distance front*middle*back is 10*30*40mm, and the spindle speed is 871r / min.

[0122] Step 6: Fine Yarn

[0123] The spinning process is completed in the spinning frame 5. After the two coarse yarns are drafted at the same time, they are merged into a siro yarn; strengthen the management of the siro compact spinning gathering area to keep the two yarns in the gathering area clear and stable; strengthen the control of compact spinning and drafting parts to strictly prevent the generation of yarn defects such as knots, and control the configuration of the small roller diameter to be larger, with a diameter of more than Ф18.7mm to prevent the drafting of the drafting slivers from being unsmooth; in case of yarn dropping or temporary parking, turn off the negative pressure fan to prevent the special-shaped tube suction trough from accumulating a large amount of dust, adhering to the slivers in the gathering area, and producing yarn with knot-shaped soot defects; use the DW-1 spinning spindle position scanner and the special yarn tube with chip inside to regularly check the lagging spindles with quality alarms, and conduct quality tracking and rectification in a timely manner to eliminate the lagging spindles, reduce the CVB quality difference between spindles, and maintain stable and consistent yarn quality;

[0124] The spinning process parameters are: total draft ratio 71.3, back draft ratio 1.18, roller gauge front*back 20*50mm, front roller speed 160r / min, gauge block 2mm, twist coefficient 340, spindle speed 12236r / min;

[0125] The waste cotton generated in the drawing, roving and spinning processes is collected and combined to form a first waste sliver, which is then torn into first broken slivers and sent to the second plucker 21 for recycling;

[0126] The waste strips generated in the pre-merging are collected and merged to form the second waste strips, which are then torn into second broken strips and fed into the first plucking machine.

[0127] The first waste drawing and tearing device 81 combines the waste cotton produced in the drawing, roving and spinning processes to form a first waste strip and tears it to form a first broken strip.

[0128] The first waste drawing frame tearing device 81 is a first waste drawing frame with the frontmost roller of four drawing frame rollers removed.

[0129] The length of the first broken strip is 260 mm.

[0130] 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%, and a volume resistivity of 3.3*10 7 Ω·cm; the modal fiber raw material was wetted to make its moisture regain reach 12.41%;

[0131] The silkworm pupa protein viscose fiber has a specification of 1.33dtex*38mm, a dry breaking strength of 2.3cN / dtex, a dry breaking elongation of 20.4%, and a volume resistivity of 3.8*10 7 Ω·cm, moisture regain 11.4%. Contains 0.57% glycine, 0.41% glutamic acid, 0.38% proline, and 0.27% aspartic acid.

[0132] After the spinning is completed, the winding process is also included; the winding machine is the QPRO-60 automatic winding machine;

[0133] The electronic yarn clearing parameters of 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%, number of PF cycles is 30, and U is 60%.

[0134] The waste cotton produced by the pre-drawing is combined to form a second waste strip and then torn to form a second broken strip by the second waste drawing and tearing device 82; the second waste drawing and tearing device is a second waste drawing machine with the frontmost roller of the four drawing rollers removed.

[0135] The length of the second broken strip is 300 mm.

[0136] The yarn quality is shown in the table below.

[0137]

[0138] Example 3. This example differs from Example 1 in that the blended yarn prepared comprises 58% modal fiber and the remainder silkworm pupa protein fiber by weight; the blended yarn has a yarn count of 11.8 tex.

[0139] The specific steps include:

[0140] Step 1: Material Pretreatment

[0141] Before the cotton is opened and cleaned, the modal fiber and silkworm pupa protein viscose fiber raw materials are first packaged, the packing tapes are cut off, and the bags are placed in a loosening room for more than 24 hours to balance and adapt to the temperature and humidity environment in the workshop; the temperature in the workshop is controlled at 28℃-32℃, and the relative humidity in the workshop is controlled at 58%-62%.

[0142] Step 2: Opening and cleaning cotton:

[0143] Modal fibers are grabbed and mixed by a first plucker, then blended in a multi-bin mixer, opened and mixed by a cotton opener, and evenly transported to a first continuous feeder. The fibers are then fed to the cotton box of the first carding machine through a first cotton delivery pipe 15. A cotton delivery pipe 15 is equipped with a cotton feeding pressure tester 151. The tester, installed at the entrance to the cotton box of the first carding machine, controls the pressure to 800 Pa, ensuring uniform cotton feeding and continuous and stable cotton feeding.

[0144] The first cotton plucking machine should have uniform bales and consistent density, and the high ones should be cut and filled to ensure uniform plucking. The beater speed is 740r / min, the cotton plucking trolley drops 3mm every time it runs one circle, the distance between the blade and the rib is generally 1-6mm, and the trolley runs at 2.0 r / min; the multi-bin cotton mixing machine must be manually filled, and the thickness of the cotton layer in each bin must be uniform. There must be no empty bins or bin adjustments, and the cotton must be spread horizontally and taken straight, with consistent mixing. The cotton opener speed is 600 r / min, and the cotton conveying pipeline has a cotton line speed of 10~13 m / s.

[0145] The silkworm pupa protein fiber is put into the second cotton grabber, and after being grabbed by the second cotton grabber, it enters the vertical automatic baler for packaging; after being packaged, it is sent to the third cotton grabber for grabbing and then sent to the cotton condenser, and is loosened by the loosening machine and cleaned by the cotton cleaning machine; the silkworm pupa protein fiber after being cleaned by the cotton cleaning machine is passed through the CFC automatic cotton feeding system to form a silkworm pupa protein fiber cotton bundle.

[0146] The second plucking machine is FA002A type plucking machine. The bags on the second plucking machine should be even and of the same density. The high bags should be cut and filled to ensure even plucking. The beater speed is 740r / min. The plucking trolley descends 3mm every time it runs one circle. The distance that the blade extends out of the rib is generally 1-6mm. The trolley runs at a speed of 2.0 r / min.

[0147] Step 3: Carding

[0148] The first cotton bundle is fed into the first carding machine for carding to obtain Modal carded sliver. A slightly higher cylinder speed can reduce the needle surface load and enhance carding, and the speed is set at 360 r / min. The licker-in speed should be reduced to facilitate fiber transfer and the speed is set at 950 r / min. Since the raw material contains less impurities, the flat speed can be reduced to 50-65 mm / min. A slightly lower doffer speed is beneficial to improve the quality of the cotton web and is controlled at 18-26 r / min; To reduce fiber congestion and ensure adequate combing, the gauge between the cylinder and the flat is slightly larger, with a five-point gauge of 0.23*0.20*0.20*0.20*0.23mm; The card clothing model for carding should be selected appropriately to ensure both sufficient carding of the fiber and good transfer and release performance of the card clothing. The card clothing uses a small working angle and low-profile chemical fiber card clothing to reduce fiber deposition. The cylinder card clothing model is AC2030-1550-50, the doffer card clothing model is AD4030*01880P-33.5, the licker-in card clothing model is AT5610*56109, and the flat card clothing model is MCH52-110; The Modal card sliver is 19g / 5m in weight, with 4 impurities / g, the cotton web is of excellent grade, and the weight unevenness is <3%;

[0149] The silkworm pupa protein fiber cotton layer is combed by a second carding machine to produce silkworm pupa protein sliver; the silkworm pupa protein sliver has a basis weight of 20.2g / 5m, impurities of 2 particles / g, a cotton web grade of excellent grade, and a weight unevenness rate of <2%;

[0150] Step 4: Drawing

[0151] In order to further reduce the unevenness of the carded sliver weight and make the blending ratio of modal and silkworm pupa protein fiber accurate, before drawing and mixing, the silkworm pupa protein carded sliver is firstly pre-drawn in a pre-drawing machine to obtain a pre-drawn sliver, and then the pre-drawn sliver is combined with the modal carded sliver, and then the second and third draws are performed;

[0152] The number of pre-drawing strands is 6, the pre-drawing wet basis weight is 20g / 5m, the post-draft ratio is 1.63, the roller gauge is 8*28mm front*back, and the delivery speed is 230m / min;

[0153] Two pre-slivers and three Modal carded slivers were combined to create a mixed sliver. The mixed sliver had a wet basis weight of 19g / 5m, a post-draft ratio of 1.81, and a roller gauge of 13*12*21mm. High process speeds can easily generate static electricity, which can entangle rollers and top rollers. The machine speed was appropriately reduced to a delivery speed of 220m / min.

[0154] The number of slivers mixed by combining two strands and one strand was 6, with a wet basis weight of 17.0g / 5m, a post-draft ratio of 1.52, and a roller gauge of 13*12*21mm. A high process speed could easily generate static electricity, which could entangle the rollers and top rollers. The speed was appropriately reduced, and the delivery speed was 220m / min.

[0155] The number of slivers of the three-way combined and two-way mixed sliver is 6. The process speed is too high, which is prone to static electricity and entanglement of rollers and rollers. The speed is appropriately reduced and the sliver delivery speed is 220m / min; the wet basis weight of the three-way mixed sliver is 16g / 5m, the post-draft ratio is 1.33, and the roller gauge is 9*30 front*back.

[0156] Step 5: Roving

[0157] The three-combined mixed sliver is processed into roving in the roving process. The roving process adopts the process principles of large gauge, heavy pressure, large twist coefficient, and small post-draft. The roving weight is designed to the maximum value while meeting the spun yarn draft requirements, and the weight is controlled at 3.8g / m. During the production process, the roving tension must be well controlled to reduce the tension difference between large and small yarns. The post-draft multiple is 1.19, the twist coefficient is 91.1, the roller center distance front*middle*back is 10*30*40mm, and the spindle speed is 871r / min.

[0158] Step 6: Fine Yarn

[0159] After the two rovings are drafted at the same time, they are combined into a siro yarn; strengthen the management of the siro compact spinning gathering area to keep the two yarns in the gathering area clear and stable; strengthen the control of compact spinning and drafting parts to strictly prevent the generation of lump yarn defects, and control the configuration of the small roller diameter to be larger, with a diameter of more than Ф18.7mm to prevent the drafting of the drafting slivers from being unsmooth; in case of yarn drop or temporary parking, shut down the negative pressure fan to prevent the special-shaped tube suction trough from accumulating a large amount of dust, which will adhere to the slivers in the gathering area and produce the whole yarn with knot-like soot defects; use the DW-1 spinning spindle position scanner and the special yarn tube with chip inside to regularly check the spindles that have been delayed with quality alarms, and conduct quality tracking and rectification in a timely manner to eliminate the delayed spindles, reduce the CVB quality difference between spindles, and maintain stable and consistent yarn quality;

[0160] The spinning process parameters are: total draft ratio 71.3, back draft ratio 1.18, roller gauge front*back 20*50mm, front roller speed 160r / min, gauge block 2mm, twist coefficient 340, spindle speed 12236r / min;

[0161] The waste cotton generated in the drawing, roving and spinning processes is collected and combined to form the first waste sliver, which is then torn into the first broken sliver and sent to the second plucking machine for recycling;

[0162] The waste strips generated in the pre-merging are collected and merged to form the second waste strips, which are then torn into second broken strips and fed into the first plucking machine.

[0163] The first waste drawing and tearing device combines the waste cotton generated in the drawing, roving and spinning processes to form a first waste strip and tears it to form a first broken strip.

[0164] The first waste drawing frame tearing device is a first waste drawing frame with the frontmost roller of four drawing rollers removed.

[0165] The length of the first broken strip is 260-300 mm.

[0166] 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%, and a volume resistivity of 3.3*10 7 Ω·cm; the modal fiber raw material was wetted to make its moisture regain reach 12.41%;

[0167] The silkworm pupa protein viscose fiber has a specification of 1.33dtex*38mm, a dry breaking strength of 2.3cN / dtex, a dry breaking elongation of 20.4%, and a volume resistivity of 3.8*10 7 Ω·cm, moisture regain 11.4%. Contains 0.57% glycine, 0.41% glutamic acid, 0.38% proline, and 0.27% aspartic acid.

[0168] After the spinning is completed, the winding process is also included; the winding machine is the QPRO-60 automatic winding machine;

[0169] The electronic yarn clearing parameters of 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%, number of PF cycles is 30, and U is 60%.

[0170] The second waste drawing and tearing device 82 combines the waste cotton produced by the pre-drawing to form a second waste strip and tears it to form a second broken strip; the second waste drawing and tearing device is a second waste drawing machine with the frontmost roller of the four drawing rollers removed.

[0171] The length of the second broken strip is 300 mm.

[0172] The yarn quality is shown in the table below.

[0173]

[0174] The preferred embodiments of the present invention have been specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A compact siro spinning production line for silkworm pupa protein fiber blended with recycled waste slivers, characterized by: It includes a control system and a non-silkworm pupa protein fiber raw material production line connected to the control system, a silkworm pupa protein fiber raw material production line, a drawing system (3), a roving frame (4), a spinning frame (5), a winding device (6), a drawing system waste cotton collection system (71), a roving frame waste cotton collection device (72), a spinning wind cotton collection device (73), a pre-drawing machine waste cotton collection device (74), a first waste drawing and tearing device (81), and a second waste drawing and tearing device (82); The non-silkworm pupa protein fiber raw material production line comprises a first cotton plucker (11), a multi-bin cotton mixer (12), a cotton opener (13), a cotton feeder (14), a cotton conveying pipeline (15), and a first carding machine (16), which are arranged in sequence; the cotton conveying pipeline (15) is provided with a cotton feeding pressure tester (151); The silkworm pupa protein fiber raw material production line comprises a second cotton plucking machine (21), a baling machine (22), a blowing and carding system (23), and a pre-drawing machine (24); a cotton bale storage area of ​​the baling machine (22) is provided with a microwave humidifier; The first carding machine (16) and the pre-drawing machine (24) are respectively connected to the drawing system (3), and the drawing system (3) is connected to the roving frame (4), the spinning frame (5), and the winding device (6) in sequence; the diameter of the small roller of the spinning frame (5) is greater than Φ18.7 mm; The drawing system waste cotton collection system (71) is connected to the drawing system (3), the roving frame waste cotton collection device (72) is connected to the roving frame (4), and the spinning wind cotton collection device (73) is connected to the spinning frame (5); The first waste drawing and tearing device (81) is respectively connected to the drawing system waste cotton collection system (71), the roving frame waste cotton collection device (72), and the spun yarn wind cotton collection device (73); The pre-drawing machine (24) is connected to the pre-drawing machine waste cotton collecting device (74) through a pipeline; the second waste drawing and tearing device (82) is connected to the pre-drawing machine waste cotton collecting device (74) through a pipeline; The second waste strip tearing device (82) is connected to the first cotton plucking machine (11) through a pipeline, and the first waste strip tearing device (81) is connected to the second cotton plucking machine (21) through a pipeline; The first waste strip tearing device (81) and the second waste strip tearing device (82) have the same structure, and both are waste strip machines without the frontmost roller of the four strip rollers. The drawing system (3) comprises a first drawing frame (31), a second drawing frame (32), and a third drawing frame (33) which are connected in sequence; a first carding machine (16) and a pre-drawing frame (24) are respectively connected to the first drawing frame (31); and the third drawing frame (33) is connected to the roving frame (4), the spinning frame (5), and the winding device (6) in sequence; The cleaning and carding system (23) includes a third cotton plucker (231), an SCR condenser (232), a bale loosening machine (233), a cotton cleaner (234), a CFC automatic cotton feeding system (235), and a second cotton carding machine (236) which are connected in sequence. The second cotton carding machine (236) is connected to the pre-drawing machine (24), and the baler (22) is connected to the second cotton plucker (21).

2. The compact siro-spinning production line for silkworm pupa protein fiber blended with recycled waste slivers according to claim 1, characterized in that: The waste cotton collecting system (71) of the drawing system comprises a first drawing frame waste cotton collecting device (711), a second drawing frame waste cotton collecting device (712), and a third drawing frame waste cotton collecting device (713). The first drawing frame waste cotton collecting device (711), the second drawing frame waste cotton collecting device (712), and the third drawing frame waste cotton collecting device (713) are respectively connected to the first waste drawing and tearing device (81) through pipelines.

3. The compact siro-spinning production line for silkworm pupa protein fiber blended with recycled waste slivers according to claim 1, characterized in that: The third cotton plucker (231) is a FA002A type automatic cotton plucker.

4. The compact siro-spinning production line for silkworm pupa protein fiber blended with recycled waste slivers as claimed in claim 1, characterized in that: The baler (22) is an SFU110CB vertical automatic baler (22).

5. The compact siro-spinning production line for silkworm pupa protein fiber blended with recycled waste slivers as claimed in claim 1, characterized in that: The roving frame (4) is a BHFA497 type roving frame (4).

6. The compact siro-spinning production line for silkworm pupa protein fiber blended with recycled waste slivers as claimed in claim 1, characterized in that: The spinning frame (5) is a FA506 type spinning frame (5); the roller center distance (front*middle*rear) of the roving frame (4) is 10*30*40mm; the diameter of the small roller of the spinning frame (5) is above Φ18.7mm, and the roller spacing (front*rear) is 20*50mm.

7. The compact siro-spinning production line for silkworm pupa protein fiber blended with recycled waste slivers as claimed in claim 1, characterized in that: The winding device (6) is a QPRO-60 automatic winding machine.

8. The compact siro-spinning production line for silkworm pupa protein fiber blended with recycled waste slivers as claimed in claim 1, characterized in that: The pre-drawing frame (24) is a FA302 type drawing frame.

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