Production method of health-care blended yarn

Abstract

The invention discloses a production method of health-care blended yarn. The production method comprises the following steps: (1) cotton assorting; (2) pre-combing apocynum venetum; (3) opening picking and cotton carding of acrylic fibers, and opening picking and cotton carding of modal fibers; (4) mixing the apocynum venetum and the acrylic fibers into strips, and mixing the apocynum venetum and the modal fibers into strips; (5) mixing apocynum venetum, acrylic fibers and modal into strips; (6) roving; and (7) spinning. According to the invention, acrylic card slivers and modal card slivers are torn into fibers and then are manually mixed with pre-combed apocynum venetum fibers respectively, and then slivers are formed respectively; the acrylic fibers / apocynum venetum slivers are prepared by drawing the sliver-formed acrylic fibers / apocynum venetum card slivers, and the modal / apocynum venetum card slivers and the modal card slivers are subjected to drawing to prepare the modal / apocynum venetum slivers, so that the displacement deviation generated in the drafting process is reduced, the yarn unevenness is reduced, and the production efficiency is improved. The acrylic fiber / apocynum venetum strips and the modal / apocynum venetum strips are mixed to achieve mixing of the three kinds of fibers, and the health-care blended yarn is prepared.

Description

Technical Field

[0001] The invention relates to the field of novel yarns, in particular to a method for producing health-care blended yarns. Background Art

[0002] With the development of social economy, people's living standards are constantly improving. For textiles used in clothing, in addition to the pursuit of wearing comfort, people are paying more and more attention to their fashion and functionality, pursuing unique styles and various functions, such as antibacterial and antistatic functions. In order to meet this demand of consumers, it has become an important task for the textile industry to continuously develop new yarns and fabrics. With the development of science and technology, the competition in the textile market is becoming more and more fierce. In order to maximize profits, various manufacturers are constantly developing in the direction of high-end, high-grade, good technical content and high added value.

[0003] The bark of ramie is a good fiber raw material and a relatively ideal new natural textile raw material, so it is known as the "king of wild fibers". Clothing made of ramie fiber has the characteristics of good air permeability, strong moisture absorption, softness, antibacterial, warm in winter and cool in summer. ramie is the first hemp fiber to be used in China. Because ramie fiber is thinner than ramie, the single fiber strength is five or six times greater than cotton, and the elongation is only 3%, it is softer than other hemp fibers, and it contains more cellulose than other hemp, so it is an excellent textile fiber material. ramie fiber can be blended with cotton, wool or silk to weave various blended cotton cloth, woolen cloth, and silk. Blended varieties with wool include gabardine, serge, and valance; blended varieties with cotton include serge, gabardine, and linen yarn; blended varieties with silk include silk. ramie cloth is more wear-resistant and rot-resistant than general fabrics, has high moisture absorption and small shrinkage, and is a very promising variety among hemp fabrics.

[0004] At present, in the blending process of apocynum fiber and other fibers, the content of apocynum fiber generally does not exceed 50%, otherwise it is difficult to form a sliver. Therefore, how to effectively increase the content of apocynum fiber and realize the processing of blended yarn with comprehensive performance and excellent yarn quality is the key. Summary of the invention

[0005] The purpose of the present invention is to provide a method for producing health-care blended yarn, so as to solve the problem in the prior art that when apocynum fiber is blended with other fibers, excessive apocynum content causes difficulty in forming high slivers.

[0006] The present invention provides a method for producing a health-care blended yarn, comprising the following steps:

[0007] The apocynum venetum fibers are subjected to health treatment after being degummed;

[0008] The apocynum venetum fibers after health treatment are fed into a pre-combing and carding machine including a double-combing mechanism for pre-combing, so as to remove short fibers and impurities and obtain apocynum venetum fiber bundle with improved fiber length distribution consistency;

[0009] The acrylic fiber and the modal fiber are independently and successively grasped and initially opened and mixed by a cotton grabbing machine, mixed and opened and removed impurities by a mixed cotton opening machine, opened and removed impurities by a cotton opening machine, rolled evenly by a single-beater rolling machine, and finely combed and removed impurities by a cotton carding machine to prepare acrylic raw sliver and modal raw sliver respectively, and parts of the acrylic raw sliver and the modal raw sliver are manually torn into fiber states and then manually mixed with the prepared apocynum fiber bundles respectively, and the manually mixed apocynum and acrylic fibers The acrylic ratio is within 10%, and the modal ratio of the manually mixed apocynum and modal fibers is within 10%. The manually mixed acrylic fibers and apocynum fibers, and the modal fibers and apocynum fibers are independently and sequentially grasped and initially opened and mixed by a cotton grasping machine, mixed and opened and removed impurities by a mixed cotton opening machine, opened and removed impurities by a cotton opening machine, uniformly rolled by a single-beater hand-rolling machine, and finely combed and removed impurities by a cotton carding machine to form strips, so as to respectively prepare acrylic fiber / pocynum sliver and modal / pocynum sliver;

[0010] A cylinder-cover carding machine is selected, and a fully enclosed small leak bottom is selected at the bottom of the cylinder. In the carding process, the process parameters are set mainly based on the characteristics of the apocynum fiber. Then, the prepared acrylic / pocynum raw sliver is drawn with the acrylic raw sliver to obtain the acrylic / pocynum raw sliver, and the prepared modal / pocynum raw sliver is drawn with the modal raw sliver to obtain the modal / pocynum raw sliver. By mixing the acrylic / pocynum raw sliver with the acrylic raw sliver, and the modal / pocynum raw sliver with the modal raw sliver, the drafting process is reduced. The displacement deviation generated in the process is eliminated, and the mixing ratio of apocynum flax, acrylic fiber and modal fiber in the blended yarn is controlled, and the obtained acrylic fiber / pocynum flax strips and modal fiber / pocynum flax strips have the same quantitative. Then, the same number of acrylic fiber / pocynum flax strips and modal fiber / pocynum flax strips are drawn together through one drawing process to achieve the mixing of the three fibers, and then through two drawing processes to achieve a more refined mixing of the three fibers and obtain acrylic fiber / modal / pocynum flax cooked yarn with good yarn uniformity, and then the final health-care blended yarn is obtained through the roving and spun yarn processes in sequence.

[0011] A method for producing health-care blended yarn as described above, wherein, preferably, the pre-combing machine includes a first-level combing mechanism and a second-level combing mechanism, the first-level combing mechanism includes a feeding device, an opening device, and a combing device, the second-level combing mechanism includes a combing device and an output device, and a transfer device is provided between the combing device of the first-level combing mechanism and the combing device of the second-level combing mechanism.

[0012] A method for producing a health-care blended yarn as described above, wherein preferably, the feeding device includes a feeding box, the feeding box is a hollow and closed rectangular parallelepiped, a negative pressure dust cage is arranged in the feeding box, a fiber input port is arranged at one end of the feeding box, the fiber input port is interconnected with the fiber input pipe, a fiber suction box is arranged at the other end of the fiber input pipe, the fiber suction box is a hollow isosceles trapezoidal structure, along the movement direction of the fiber in the fiber suction box, the width of the fiber suction box gradually decreases, the two ends of the fiber suction box are open, and the fiber suction box is The open and wide end of the box is provided with a ramie conveyor belt, and the ramie fibers treated with health treatment are transported through the ramie conveyor belt. The open and narrow end of the fiber suction box is interconnected with the fiber output tube. A first photoelectric device and a second photoelectric device with the same structure are provided at a certain height in the feeding box. The first photoelectric device is located directly above the second photoelectric device and a certain distance is maintained between the two. The first photoelectric device and the second photoelectric device include a light emitting device and a light receiving device. The light emitting device and the light receiving device are respectively located at the feeding box. The feeding box is provided with an output roller pair on two opposite sides of the feeding box, and the two sides are kept horizontally aligned, the lower side of the feeding box is open, and an output roller pair is arranged on the open lower side of the feeding box, the output roller pair includes a first output roller and a second output roller, the first output roller and the second output roller are the same wooden rollers, the first output roller and the second output roller are kept close to and completely cover the lower side of the feeding box, the first output roller is rotatably connected to one side edge of the lower side of the feeding box, and the second output roller is rotatably connected to the other side edge of the lower side of the feeding box. The two rollers are rotatably connected, the first output roller is driven to rotate by the output motor, the output motor is communicatively connected with the first photoelectric device and the second photoelectric device, a hemp input conveyor belt is arranged below the feeding box, a hemp input supporting plate is arranged at the front of the hemp input conveyor belt, the hemp input supporting plate is a downward curved structure, a hemp input roller is arranged above the hemp input supporting plate, the hemp input roller is pressed and contacted with the hemp input supporting plate, and the hemp input roller is driven to rotate by the corresponding transmission mechanism.

[0013] A method for producing a health-care blended yarn as described above, wherein preferably, the opening device includes an opening roller, an opening needle cloth is arranged on the opening roller, a certain number of rows of short knives are arranged on the rear side below the opening roller, the row of short knives are triangular prism structures, one side of the row of short knives faces the opening roller, the spacing between two adjacent rows of short knives gradually increases, a first supporting arc is arranged in front of the row of short knives, the first supporting arc is a downwardly convex arc plate, and a certain number of first de-dusting seams are opened in the width direction of the first supporting arc.

[0014] A method for producing health-care blended yarn as described above, wherein, preferably, the combing device includes an upper combing cover and a lower combing roller, the upper combing cover is an annular arc structure, the upper combing cover is driven to rotate by a corresponding transmission mechanism, an upper combing needle cloth is arranged on the side of the upper combing cover facing outward, the lower combing roller is a hollow cylindrical structure, the lower combing roller is driven to rotate by a corresponding transmission mechanism, and the upper combing cover of the first-level combing mechanism and the lower combing roller have opposite rotation directions, and the upper combing cover of the second-level combing mechanism and the lower combing roller have the same rotation direction, the rotation linear speed of the upper combing cover is less than the rotation linear speed of the lower combing roller, and the linear speed difference between the upper combing cover and the lower combing roller of the first-level combing mechanism is greater than the linear speed difference between the upper combing cover and the lower combing roller of the second-level combing mechanism.

[0015] A method for producing a health-care blended yarn as described above, wherein, preferably, the output device includes an output roller, the output roller is a solid cylindrical structure, an output needle cloth is arranged on the side of the output roller, the output roller is in close contact with the lower combing roller of the second-level combing mechanism, and a ramie collection box is arranged directly below the output roller.

[0016] A method for producing a health-care blended yarn as described above, wherein preferably, in the pre-combing treatment, the health-preserving apocynum fibers are conveyed via apocynum transmission belt, and the conveyed apocynum fibers are adsorbed into the fiber input pipe via the fiber suction box under the action of the negative pressure generated in the negative pressure dust cage. During this process, the apocynum fibers sucked in a relatively loose state are gradually gathered in the fiber suction box with a gradually decreasing width, and enter the feeding box through the fiber input pipe, forming a apocynum fiber layer stacked at a certain height in the feeding box. When the apocynum fiber layer reaches the height of the first photoelectric device, the light emitted by the light emitting device of the first photoelectric device is blocked by the apocynum fibers, so that the light receiving device of the first photoelectric device cannot receive the light signal. At this time, the output motor drives the first output roller to rotate, so that The apocynum fibers in the feeding box are output under the drive of the output roller pair and fall onto the apocynum input conveyor belt. When the apocynum fiber layer does not reach the height of the first photoelectric device, the output motor stops working, so that the height of the apocynum fiber layer in the feeding box continues to increase. When the apocynum fiber layer reaches the height of the second photoelectric device, the light emitted by the light emitting device of the second photoelectric device is blocked by the apocynum fibers, so that the light receiving device of the second photoelectric device cannot receive the light signal. At this time, the negative pressure dust cage stops working, so that the apocynum fibers stop entering the feeding box, so that the apocynum fibers are output when the height of the apocynum fiber layer in the feeding box is between the first photoelectric device and the second photoelectric device, so as to achieve uniform output of the apocynum fibers under the pressure generated at a certain range of heights.

[0017] The outputted apocynum fiber is driven by the apocynum input conveyor belt and enters between the apocynum input supporting plate and the apocynum input roller, and is continuously pressed and fed under the drive of the rotating apocynum input roller. During the feeding process, the apocynum fiber is pressed at one end, and the other end receives the striking and loosening effect of the rotating opening roller, and the apocynum fiber is loosened under the striking and loosening effect until the apocynum fiber is completely transferred to the opening roller, and the transferred apocynum fiber immediately enters between the opening roller and the row of short knives. During this process, the shorter fibers will be in a state where both ends are not supported by the row of short knives, so that the fibers fall under the action of centrifugal force, and then some short fibers are eliminated. At the same time, the impurities exposed in the striking and opening fall from the air strikes between the rows of short knives under the action of centrifugal force, so that the impurities are eliminated. The apocynum fibers then enter between the opening roller and the first supporting arc. Under the supporting action of the first supporting arc, the apocynum fibers overcome the external force and continue to be driven to rotate by the opening roller.

[0018] When the apocynum fiber rotates to between the opening roller and the lower combing roller of the first-level combing mechanism, the apocynum fiber on the opening roller is completely grasped by the lower combing roller and then transferred, and the transferred apocynum fiber then enters between the upper combing cover and the lower combing roller, and in the area therebetween, the upper combing cover and the lower combing roller keep rotating in the same direction, at this time, the short fibers brought in by the lower combing roller and located on the surface layer cannot be effectively held by the lower combing needle clothing, and thus slide to between the upper combing needle clothings of the upper combing cover under the action of centrifugal force, and because the fibers are short, they are The short fibers sink between the upper card clothings and cannot be caught by the lower card clothing of the lower card roller again, thereby achieving the elimination of some short fibers. The longer fibers are repeatedly caught by the upper card clothing and the lower card clothing, thereby repeatedly transferring between the two. During the transfer process, the connection force between the fibers is gradually reduced, thereby achieving the combing effect on the fibers. At the same time, the impurities will slide between the upper card clothings of the upper card cover under the action of centrifugal force, thereby achieving the elimination of some impurities. The short fibers and impurities that sink between the upper card clothings are taken out by the rotating upper card cover and then removed.

[0019] The combed apocynum fibers are brought out by the lower combing roller, and then immediately enter between the lower combing roller and the transfer roller. The apocynum fibers on the lower combing roller are completely grabbed by the transfer roller and then transferred. The transferred apocynum fibers are driven to rotate by the transfer roller until they enter between the transfer roller and the second supporting arc. Under the supporting action of the second supporting arc, the apocynum fibers overcome the external force and continue to be driven to rotate by the transfer roller. At the same time, the gradually exposed impurities fall along the second impurity removal seam under the action of centrifugal force and are removed. When the apocynum fibers rotate between the transfer roller and the lower combing roller of the second-stage combing mechanism, the apocynum fibers on the transfer roller are completely grabbed by the lower combing roller and then transferred.

[0020] The transferred apocynum fibers then enter between the upper combing cover and the lower combing roller, and in the area between the two, the upper combing cover and the lower combing roller keep rotating in opposite directions. At this time, the shorter fibers brought in by the lower combing roller and located on the surface cannot be effectively held by the lower combing card clothing, and are directly grasped by the upper combing card clothing of the upper combing cover. Moreover, since the fibers are short, they directly sink between the upper combing card clothing and cannot be grasped by the lower combing card clothing of the lower combing roller again, thereby achieving the elimination of some shorter fibers, and the longer fibers will be caught by the upper combing card clothing. The combing card clothing and the lower combing card clothing are repeatedly grasped, thereby repeatedly transferring between the two. During the transfer process, the connecting force between the fibers is gradually reduced, thereby realizing the combing effect on the fibers. The shorter fibers sunk between the upper combing card clothings are brought out by the rotating upper combing cover and then removed. The combed apocynum fibers are brought out by the lower combing roller, and then immediately enter between the lower combing roller and the output roller. The apocynum fibers on the lower combing roller are completely grasped by the output roller and directly fall into the apocynum collecting box under their own gravity to obtain the required apocynum fiber bundles.

[0021] Compared with the prior art, the present invention adopts acrylic raw sliver and modal raw sliver torn into fibers and then mixed with pre-combed apocynum fibers manually, and then separately formed into strips, thereby overcoming the difficulty that apocynum fibers cannot be formed into strips alone, and the acrylic raw slivers after the strips are formed are drawn into acrylic / pocynum flax strips by one time, and the modal / pocynum flax raw slivers and modal raw slivers are drawn into modal / pocynum flax strips by one time, thereby reducing the displacement deviation generated in the drafting process and reducing the yarn unevenness, and at the same time realizing the control of the mixing ratio of apocynum flax, acrylic fiber and modal in the blended yarn, and realizing the mixing of the three fibers by mixing the acrylic / pocynum flax strips and the modal / pocynum flax strips, thereby obtaining the required health-care blended yarn with uniform fiber mixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the pre-combing carding machine of the present invention.

[0023] Explanation of the accompanying drawings: 1-feeding box, 2-negative pressure dust cage, 3-fiber input pipe, 4-fiber suction box, 5-first photoelectric device, 6-second photoelectric device, 7-first output roller, 8-second output roller, 9-ramie input conveyor belt, 10-ramie input supporting plate, 11-ramie input roller, 12-opening roller, 13-row of short knives, 14-first supporting arc, 15-first-level combing mechanism, 16-second-level combing mechanism, 17-lower combing roller, 18-upper combing cover, 19-transfer roller, 20-second supporting arc, 21-output roller, 22-ramie collection box. DETAILED DESCRIPTION

[0024] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, but should not be construed as limiting the present invention.

[0025] The invention provides a method for producing a health-care blended yarn, comprising the steps of: performing a health-care treatment on apocynum fiber after degumming, and then feeding the fiber into a pre-combing and carding machine including a double-combing mechanism for pre-combing treatment, thereby eliminating short fibers and impurities, and obtaining apocynum fiber bundles with improved fiber length distribution consistency; and independently and sequentially performing grabbing and initial loosening and mixing on a grabbing machine, mixing and loosening and removing impurities on a mixed cotton opening machine, loosening and removing impurities on a cotton opening machine, uniformly rolling on a single-beater rolling machine, and finely combing and removing impurities on a cotton carding machine, thereby obtaining acrylic raw sliver and modal raw sliver, respectively. The method comprises the following steps: manually tearing part of the acrylic raw sliver and the modal raw sliver into a fiber state and then manually mixing them with the prepared apocynum fiber bundle independently, and the acrylic ratio in the manually mixed apocynum and acrylic fiber is within 10%, and the modal ratio in the manually mixed apocynum and modal fiber is within 10%, and the manually mixed acrylic fiber and apocynum fiber, modal fiber and apocynum fiber are independently and sequentially grasped and initially opened and mixed by a cotton grasping machine, mixed and opened and removed impurities by a cotton blending and opening machine, opened and removed impurities by a cotton opening machine, uniformly rolled by a single-beater hand-rolling machine, and combed. The cotton machine is finely combed to remove impurities and form strips, and acrylic / lop ramie slivers and modal / lop ramie slivers are respectively produced. The problem that lop ramie fiber cannot be formed into a net or strips alone is effectively overcome by mixing lop ramie with a small proportion of acrylic fiber and mixing lop ramie with a small proportion of modal fiber. Then, the prepared acrylic / lop ramie slivers are drawn together with acrylic slivers to obtain acrylic / lop ramie slivers, and the prepared modal / lop ramie slivers are drawn together with modal slivers to obtain modal / lop ramie slivers. By mixing acrylic / lop ramie slivers with acrylic slivers and modal / lop ramie slivers with modal slivers, the The invention discloses a method for mixing the raw sliver of apocynum ramie, acrylic fiber and modal ramie, reducing the displacement deviation generated in the drafting process, and realizing the control of the mixing ratio of apocynum ramie, acrylic fiber and modal ramie in the blended yarn, and the obtained acrylic fiber / amphocynum ramie and modal / amphocynum ramie have the same quantitative, and then the same number of acrylic fiber / amphocynum ramie and modal / amphocynum ramie are drawn together through one drawing to realize the mixing of the three fibers, and then through two drawing to realize the more refined mixing of the three fibers and obtain the acrylic fiber / modal / amphocynum ramie cooked sliver with good strip uniformity, and then sequentially through the roving and spun spinning processes to obtain the final health-care blended yarn, comprising the following steps:

[0026] Step 1: Cotton matching. Xinjiang apocynum fiber is used as the raw material of apocynum. The average fiber length is 23mm, of which 45% is less than 20mm. The shortest fiber is 9mm and the longest is 49mm. The fiber length fluctuates within 40mm, and the length difference rate is 43.2%. The uniformity is poor, so it is difficult for apocynum fiber to be netted separately during the spinning process. At the same time, the selected apocynum fiber is degummed, and then 2% oil and 10% water are added to spray it for hemp health treatment; acrylic fiber uses Jimeng dyed acrylic fiber, which is soft and fluffy, very similar to wool, and has excellent light resistance, weather resistance, moth resistance, corrosion resistance, radiation resistance and organic solvent resistance.

[0027] The second step: pre-combing the apocynum ramie fibers treated in the first step of health preservation through a pre-combing carding machine to eliminate short fibers and impurities, and obtain apocynum ramie fiber bundles with improved fiber length distribution consistency; the pre-combing carding machine includes a first-level combing mechanism 15 and a second-level combing mechanism 16, the first-level combing mechanism 15 includes a feeding device, an opening device, and a combing device, the second-level combing mechanism 16 includes a combing device and an output device, a transfer device is provided between the combing device of the first-level combing mechanism 15 and the combing device of the second-level combing mechanism 16, the feeding device includes a feeding box 1, the feeding box 1 is a hollow and closed rectangular parallelepiped, a negative pressure dust cage 2 is provided in the feeding box 1, a fiber input port is provided at one end of the feeding box 1, and the fiber input port It is interconnected with the fiber input pipe 3, and a fiber suction box 4 is arranged at the other end of the fiber input pipe 3. The fiber suction box 4 is a hollow isosceles trapezoidal structure. Along the movement direction of the fiber in the fiber suction box 4, the width of the fiber suction box 4 gradually decreases. The two ends of the fiber suction box 4 are open. The open and wide end of the fiber suction box 4 is provided with a ramie conveyor belt. The health-treated ramie fiber is transported through the ramie conveyor belt. The open and narrow end of the fiber suction box 4 is interconnected with the fiber output pipe. A first photoelectric device 5 and a second photoelectric device 6 with the same structure are arranged at a certain height in the feeding box 1. The first photoelectric device 5 is located directly above the second photoelectric device 6 and a certain distance is maintained between the two. The first photoelectric device 5 and the second photoelectric device 6 include a light emitting device and a light receiving device, the light emitting device and the light receiving device are respectively located on two opposite sides of the feeding box 1, and the two are kept horizontally aligned, the lower side of the feeding box 1 is open, and an output roller pair is arranged on the open lower side of the feeding box 1, the output roller pair includes a first output roller 7 and a second output roller 8, the first output roller 7 and the second output roller 8 are the same wooden rollers, the first output roller 7 and the second output roller 8 are kept close to and completely cover the lower side of the feeding box 1, the first output roller 7 is rotatably connected to one side of the lower side of the feeding box 1, the second output roller 8 is rotatably connected to the other side of the lower side of the feeding box 1, and the first output roller 7 is driven by an output motor Driven to rotate, the output motor is communicated with the first photoelectric device 5 and the second photoelectric device 6, a hemp input conveyor belt 9 is arranged below the feeding box 1, a hemp input supporting plate 10 is arranged in front of the hemp input conveyor belt 9, the hemp input supporting plate 10 is a downward curved arc structure, a hemp input roller 11 is arranged above the hemp input supporting plate 10, the hemp input roller 11 is pressed and contacted with the hemp input supporting plate 10, and the hemp input roller 11 is driven to rotate by the corresponding transmission mechanism, an opening device is arranged in front of the feeding device, the opening device includes an opening roller 12, an opening needle cloth is arranged on the opening roller 12, and a certain number of rows of short knives 13 are arranged on the rear side below the opening roller 12,The row of short knives 13 is a triangular prism structure, one side of the row of short knives 13 faces the opening roller 12, and the spacing between two adjacent rows of short knives 13 gradually increases. A first supporting arc 14 is arranged in front of the row of short knives 13, and the first supporting arc 14 is a downwardly convex arc plate. A certain number of first debris removal slits are opened in the width direction of the first supporting arc 14. The combing device comprises an upper combing cover 18 and a lower combing roller 17. The upper combing cover 18 is an annular arc structure, and the upper combing cover 18 is driven to rotate by a corresponding transmission mechanism. An upper combing needle cloth is arranged on the side of the upper combing cover 18 facing outward. The lower combing roller 17 is a hollow cylindrical structure, and the lower combing roller 17 is driven to rotate by a corresponding transmission mechanism. The upper combing cover 18 of the first-level combing mechanism 15 rotates in opposite directions to the lower combing roller 17, and the upper combing cover 18 of the second-level combing mechanism 16 rotates in the same direction to the lower combing roller 17. The rotation linear speed of the upper combing cover 18 is less than the rotation linear speed of the lower combing roller 17. The linear speed difference between the upper combing cover 18 and the lower combing roller 17 of the first-level combing mechanism 15 is greater than the linear speed difference between the upper combing cover 18 and the lower combing roller 17 of the second-level combing mechanism 16. The output device includes an output roller 21, which is a solid cylindrical structure. An output needle cloth is arranged on the side of the output roller 21. The output roller 21 is close to the lower combing roller 17 of the second-level combing mechanism 16. A ramie collection box 22 is arranged directly below the output roller 21. The transfer device includes a transfer roller 19, which is a solid cylindrical structure. A transfer needle cloth is arranged on the side of the transfer roller 19. Both sides of the transfer roller 19 are close to the lower combing roller 17 of the first-level combing mechanism 15 and the lower combing roller 17 of the second-level combing mechanism 16. A second supporting arc 20 is arranged directly below the transfer roller 19. The second supporting arc 20 is a downward convex arc plate, and a certain number of second impurity removal seams are opened in the width direction of the second supporting arc 20.

[0028] When in use, the health-treated apocynum fibers are transported via the apocynum transmission belt. The transported apocynum fibers are adsorbed into the fiber input pipe 3 through the fiber suction box 4 under the action of the negative pressure generated in the negative pressure dust cage 2. In this process, the apocynum fibers sucked in in a relatively loose state are gradually gathered in the fiber suction box 4 with a gradually decreasing width, and enter the feeding box 1 through the fiber input pipe 3, forming a apocynum fiber layer stacked at a certain height in the feeding box 1. When the apocynum fiber layer reaches the height of the first photoelectric device 5, the light emitted by the light emitting device of the first photoelectric device 5 is blocked by the apocynum fibers, so that the light receiving device of the first photoelectric device 5 cannot receive the light signal. At this time, the output motor drives the first output roller 7 to rotate, thereby The apocynum fibers in the feeding box 1 are output under the drive of the output roller pair and fall onto the apocynum input conveyor belt 9. When the apocynum fiber layer does not reach the height of the first photoelectric device 5, the output motor stops working, so that the height of the apocynum fiber layer in the feeding box 1 continues to increase. When the apocynum fiber layer reaches the height of the second photoelectric device 6, the light emitted by the light emitting device of the second photoelectric device 6 is blocked by the apocynum fibers, so that the light receiving device of the second photoelectric device 6 cannot receive the light signal. At this time, the negative pressure dust cage 2 stops working, so that the apocynum fibers stop entering the feeding box 1, so that the apocynum fibers are output when the height of the apocynum fiber layer in the feeding box 1 is between the first photoelectric device 5 and the second photoelectric device 6, so as to achieve The uniform output of the apocynum fibers under the pressure generated by a certain range of heights, the output apocynum fibers are driven by the apocynum input conveyor belt 9 and enter between the apocynum input holding plate 10 and the apocynum input roller 11, and are continuously pressed and fed under the drive of the rotating apocynum input roller 11. During the feeding process, the apocynum fibers are pressed at one end, and the other end receives the striking and loosening effect of the rotating opening roller 12. Under the striking and loosening effect, the apocynum fibers are loosened until the apocynum fibers are completely transferred to the opening roller 12. The transferred apocynum fibers immediately enter between the opening roller 12 and the row of short knives 13. In this process, the shorter fibers will be in a state where both ends are not supported by the row of short knives 13, so that the fibers fall under the action of centrifugal force. Then, some short fibers are eliminated. At the same time, impurities exposed in the striking and opening fall from the air strikes between the rows of short knives 13 under the action of centrifugal force, thereby eliminating impurities. The apocynum fiber then enters between the opening roller 12 and the first supporting arc 14. Under the supporting action of the first supporting arc 14, the apocynum fiber overcomes the external force and continues to be driven by the opening roller 12 to rotate. When the apocynum fiber rotates between the opening roller 12 and the lower combing roller 17 of the first-level combing mechanism 15, the apocynum fiber on the opening roller 12 is completely grasped by the lower combing roller 17 and then transferred. The transferred apocynum fiber then enters between the upper combing cover 18 and the lower combing roller 17, and in the area between the two, the upper combing cover 18 and the lower combing roller 17 keep rotating in the same direction.At this time, the short fibers brought in by the lower combing roller 17 and located on the surface cannot be effectively held by the lower combing card clothing, and thus slide to between the upper combing card clothings of the upper combing cover 18 under the action of centrifugal force. Moreover, since the fibers are short, they sink to between the upper combing card clothings and cannot be grasped by the lower combing card clothing of the lower combing roller 17 again, thereby achieving the removal of some short fibers. The longer fibers will be repeatedly grasped by the upper combing card clothing and the lower combing card clothing, thereby repeatedly transferred between the two. During the transfer process, the connecting force between the fibers is gradually reduced, thereby achieving the combing effect on the fibers. At the same time, impurities will slide to between the upper combing card clothings of the upper combing cover 18 under the action of centrifugal force, thereby achieving the removal of some impurities. The short fibers and impurities sunk between the upper combing needle clothings are taken out by the rotating upper combing cover 18 and then removed. The combed apocynum fibers are taken out by the lower combing roller 17 and then immediately enter between the lower combing roller 17 and the transfer roller 19. The apocynum fibers on the lower combing roller 17 are completely grabbed by the transfer roller 19 and then transferred. The transferred apocynum fibers are driven to rotate by the transfer roller 19 until they enter between the transfer roller 19 and the second supporting arc 20. Under the supporting action of the second supporting arc 20, the apocynum fibers overcome the external force and continue to be driven to rotate by the transfer roller 19. At the same time, the gradually exposed impurities fall along the second impurity removal seam under the action of centrifugal force and are removed.

[0029] When the apocynum fiber rotates between the transfer roller 19 and the lower combing roller 17 of the second-stage combing mechanism 16, the apocynum fiber on the transfer roller 19 is completely grasped by the lower combing roller 17 and then transferred, and the transferred apocynum fiber then enters between the upper combing cover 18 and the lower combing roller 17, and in the area between the two, the upper combing cover 18 and the lower combing roller 17 keep rotating in the opposite direction, at this time, the shorter fibers brought in by the lower combing roller 17 and located on the surface layer cannot be effectively held by the lower combing needle cloth, and are thus directly grasped by the upper combing needle cloth of the upper combing cover 18, and because the fibers are short, they directly sink between the upper combing needle cloths and cannot be combed again by the lower combing roller 17 The card clothing grabs, thereby achieving the exclusion of some shorter fibers, and the longer fibers will be repeatedly grabbed by the upper carding card clothing and the lower carding card clothing, and thus repeatedly transferred between the two. During the transfer process, the connection force between the fibers is gradually reduced, thereby achieving the combing effect on the fibers. The shorter fibers sunk between the upper carding card clothings are brought out by the rotating upper carding cover 18 and then removed. The combed apocynum fibers are brought out by the lower carding roller 17, and then immediately enter between the lower carding roller 17 and the output roller 21. The apocynum fibers on the lower carding roller 17 are completely grabbed by the output roller 21 and directly fall into the apocynum collecting box 22 under their own gravity to obtain the required apocynum fiber bundles.

[0030] The third step: acrylic opening, cleaning and combing, modal opening, cleaning and combing, the selected acrylic fibers are sequentially grabbed and preliminarily opened and mixed by an automatic cotton grabber according to the mixing ratio, the mixed cotton opener opens, mixes and removes impurities for the grabbed acrylic fibers, the cotton opener opens, combs and removes impurities, and the single beater roll machine is used to evenly roll to obtain acrylic rolls, and the acrylic rolls are finely opened, combed and removed impurities by the carding machine to obtain acrylic raw sliver; at the same time, the selected modal fibers are sequentially grabbed and preliminarily opened and mixed by an automatic cotton grabber according to the mixing ratio, the mixed cotton opener opens, mixes and removes impurities for the grabbed modal fibers, the cotton opener opens, combs and removes impurities, and the single beater roll machine is used to evenly roll to obtain modal rolls, and the modal rolls are finely opened, combed and removed impurities by the carding machine to obtain modal raw sliver; cotton opening and cleaning process Following the process principle of "fine cotton grasping, more combing and less beating", the mixed cotton opening adopts parallel beaters, and a moderate spacing between the cotton stripping beaters and the dust bars is adopted. The fibers are hit moderately, without damaging the fibers while maintaining a certain opening effect. The speed of the cotton stripping beaters is moderate, the opening effect is good, and the generation of defects such as cotton knots is reduced. The cotton opener has a porcupine structure and adopts combing needle beaters. The opening is gentle and will not lose fibers. The spacing between the dust bars of the cotton stripping beaters is appropriately increased to ensure that the fiber flow is smoothly transported to the lap machine and reduce the cotton drop rate. The single-beater lap machine adopts a comprehensive beater to increase the beater speed. During the lapping process, pay attention to the storage capacity of the cotton box to improve the uneven weight of the cotton lap. The obtained acrylic roll or modal roll has a fixed weight of 12.35kg, the fan speed is 1330r / min, and the cotton roll roller speed is 11r / min.

[0031] Step 4: mixing apocynum ramie with acrylic fiber and apocynum ramie with modal fiber into strips, manually tearing part of the acrylic fiber raw strips and modal raw strips obtained in the third step into acrylic fiber state and modal fiber state respectively, and then manually mixing the torn acrylic fiber with the apocynum ramie fiber clump obtained in the second step to obtain acrylic fiber / apynum ramie mixed fiber, and manually mixing the torn modal fiber with the apocynum ramie fiber clump obtained in the second step to obtain modal / apynum ramie mixed fiber; and then opening the acrylic fiber / apynum ramie mixed fiber in turn by an automatic cotton mixing machine. , mixing, and impurity removal, the mixing, opening, and impurity removal of the differential hybrid multi-bin cotton mixer, the opening, combing, and impurity removal of the cotton opener, and the uniform rolling of the single-beater rolling machine are obtained to obtain acrylic / lop flax rolls, and the acrylic / lop flax rolls are finely opened, combed, and impurity removed by the carding machine to obtain acrylic / lop flax sliver. A cylinder-cover type carding machine is selected, and a fully enclosed small leak bottom is selected at the bottom of the cylinder. In the carding process, the process parameters are set mainly based on the characteristics of lop flax fiber, and the quantitative of the obtained acrylic / lop flax sliver is set to be greater than the quantitative of the acrylic sliver obtained in the third step.

[0032] At the same time, the modal / lophanthite mixed fiber is sequentially opened, mixed and impurity-removed by an automatic cotton mixer, mixed, opened and impurity-removed by a time-difference mixed multi-bin cotton mixer, opened, combed and impurity-removed by a cotton opener, and uniformly rolled by a single-beater roll forming machine to obtain a modal / lophanthite roll. The modal / lophanthite roll is finely opened, combed and impurity-removed by a carding machine to obtain a modal / lophanthite raw sliver. A cylinder-cover plate carding machine is selected, and a fully enclosed small leak bottom is selected at the bottom of the cylinder. In the carding process, the process parameters are set mainly based on the characteristics of the lophatherum fiber, and the quantitative of the obtained modal / lophanthite raw sliver is set to be greater than the quantitative of the modal raw sliver obtained in the third step.

[0033] Due to the poor length uniformity and the large number of short fibers, there are many flat plate flowers in the carding process, which is easy to waste raw materials. Therefore, the flat plate speed should be appropriately reduced to 71.9r / min to reduce the needle surface load, which is conducive to reducing the number of flat plate flowers, increasing the licker-in roller-dust removal knife spacing to prevent the shorter Loplum flax fibers from being removed as impurities, and reducing the cylinder-front upper cover spacing to facilitate the fiber layer to be pressed down by the front upper cover, and the fibers are easily grasped by the cylinder needle teeth, reducing the number of flat plate flowers, and the cylinder-cover spacing is controlled to be larger to prevent the fibers from winding around the cylinder and affecting the combing effect. Reduce the motor frequency during stripping to reduce fiber damage.

[0034] The proportion of acrylic in the acrylic / lop ramie blended fiber is selected as 5 times, 2 times, 1 times, 0.5 times, or 0.2 times the difference in the quantitative weight between the prepared acrylic / lop ramie raw strips and the acrylic raw strips, and the proportion of modal in the modal / lop ramie blended fiber is selected as 5 times, 2 times, 1 times, 0.5 times, or 0.2 times the difference in the quantitative weight between the prepared modal / lop ramie raw strips and the modal raw strips.

[0035] Step 5: Mix apocynum ramie, acrylic fiber and modal into strips, and make acrylic fiber / pocynum ramie strips by drawing the acrylic fiber / pocynum ramie strips obtained in the fourth step and the acrylic fiber strips obtained in the third step. A total of 6 acrylic fiber / pocynum ramie strips are fed together with the acrylic fiber strips during the drawing process, and the acrylic fiber / pocynum ramie strips are made after the drawing of the drawing machine is thinned and re-combined, so that the speed change consistency of the apocynum ramie fiber is improved by adding acrylic fiber with high length uniformity during the drawing process, and the acrylic fiber and the apocynum fiber in the acrylic fiber / pocynum ramie strips are made according to the required proportion. , 1 acrylic fiber / Lobu hemp raw strip and 5 acrylic fiber raw strips, or 2 acrylic fiber / Lobu hemp raw strips and 4 acrylic fiber raw strips, or 3 acrylic fiber / Lobu hemp raw strips and 3 acrylic fiber raw strips, or 4 acrylic fiber / Lobu hemp raw strips and 2 acrylic fiber raw strips, or 5 acrylic fiber / Lobu hemp raw strips and 1 acrylic fiber raw strip, then 5 times, or 2 times, or 1 times, or 0.5 times, or 0.2 times the quantitative difference between the acrylic fiber / Lobu hemp raw strip and the acrylic fiber raw strip are selected respectively, then the proportion of Lobu hemp fiber in the acrylic fiber / Lobu hemp strip obtained at this time is The ratios are 1 / 6, 1 / 3, 1 / 2, 2 / 3, and 5 / 6 respectively; the Modal / Lobby ramie raw strips prepared in the fourth step and the Modal raw strips prepared in the third step are subjected to a drawing machine to obtain Modal / Lobby ramie strips, and a total of 6 Modal / Lobby ramie raw strips and Modal raw strips are fed together in the drawing process, and the Modal / Lobby ramie strips are obtained after the drawing machine is drafted, thinned, and re-combined, so that the speed change consistency of the Lobby ramie fiber is improved by adding the Modal fiber with high length uniformity during the drawing process, and at the same time, the Modal fiber in the Modal / Lobby ramie strips is achieved. The fiber and the Rob fiber are mixed in the required proportion, and one modal / rob asphalt sliver is selected to be used with five modal asphalt slivers, or two modal / rob asphalt slivers are selected to be used with four modal asphalt slivers, or three modal / rob asphalt slivers are selected to be used with three modal asphalt slivers, or four modal / rob asphalt slivers are selected to be used with two modal asphalt slivers, or five modal / rob asphalt slivers are selected to be used with one modal asphalt sliver, and the weight difference between the modal / rob asphalt sliver and the modal asphalt sliver is selected to be 5 times, 2 times, 1 times, 0.5 times, or 0.2 times, then the proportion of apocynum fiber in the modal / pocynum flax strips obtained at this time is 1 / 6, 1 / 3, 1 / 2, 2 / 3, and 5 / 6 respectively; the quantitative amount of the obtained acrylic / pocynum flax strips and modal / pocynum flax strips is set to be the same, and then the same number of acrylic / pocynum flax strips and modal / pocynum flax strips are jointly subjected to the first drawing to obtain acrylic / modal / pocynum flax mixed strips, so as to achieve the mixing of the three fibers of apocynum flax, acrylic and modal, in the first drawing, 3 acrylic / pocynum flax strips and 3 modal / pocynum flax strips are jointly fed, and the acrylic / modal / pocynum flax mixed strips are obtained by drawing, thinning and re-combining the drawing frame, and the acrylic / modal / pocynum flax mixed strips are jointly subjected to the second drawing to obtain acrylic / modal / pocynum flax semi-cooked strips. , 6 acrylic / modal / lopyram mixed strips are fed together in the second drawing process, and the acrylic / modal / lopyram mixed strips are drawn, thinned, and recombined by the drawing frame to obtain acrylic / modal / lopyram semi-cooked strips, thereby achieving uniformity of the fed acrylic / modal / lopyram mixed strips, and at the same time achieving a more fine and uniform mixing of the three fibers, and the acrylic / modal / lopyram semi-cooked strips are drawn together in the third drawing process to obtain acrylic / modal / lopyram cooked strips, and 6 acrylic / modal / lopyram semi-cooked strips are fed together in the third drawing process, and the acrylic / modal / lopyram cooked strips are drawn, thinned, and recombined by the drawing frame to obtain acrylic / modal / lopyram cooked strips, thereby achieving uniformity of the fed acrylic / modal / lopyram semi-cooked strips, and at the same time achieving a more fine and uniform mixing of the three fibers. .

[0036] Step 6: roving. The acrylic / modal / lopyram sliver obtained in the fifth step is drawn, thinned, twisted and wound by a roving machine to obtain acrylic / modal / lopyram roving with a certain strength. Due to the poor uniformity of lopyram fiber, the twist coefficient of the roving is relatively large and is set to 82. During the roving process, the winding tension of the roving should be strictly controlled to prevent the yarn from being accidentally stretched, resulting in an increase in the unevenness of the roving. The jaws of the rubber ring are relatively large and are set to 7.5mm.

[0037] Step 7: Spinning. The acrylic / modal / ramie roving obtained in the sixth step is stretched, fined, twisted and wound to obtain a health-care blended yarn with a certain strength. A full-poly spinning spinning frame is selected. The drafting system adopts a three-roller upper short and lower long leather ring drafting structure. The spindle speed is appropriately reduced, and the steel collar and wire ring are reasonably selected to reduce the friction between the yarn and the steel collar and wire ring, thereby reducing end breakage.

[0038] Taking the preparation of antibacterial blended yarn with a linear density of 18.5tex and a blending ratio of 50 apocynum / 25 acrylic / 25 modal as an example, the corresponding process parameters are as follows:

[0039] (1) Raw material selection: The composition of the selected apocynum fiber is as follows:

[0040] Main chemical components

[0041]

[0042] (2) The process flow is designed as follows

[0043] Lophatherum fiber: degumming → health care → pre-combing

[0044] Acrylic fiber: FA002 automatic cotton plucking machine → FA035 mixed cotton opening machine → FA016 cotton opening machine → FA076 single beater lap forming machine → FA201B carding machine

[0045] Modal fiber: FA002 automatic cotton plucking machine → FA035 mixed cotton opening machine → FA016 cotton opening machine → FA076 single beater lap forming machine → FA201B carding machine

[0046] (Lobby fiber + acrylic raw sliver): manual mixing → ZFA026 automatic cotton mixer → FA025 differential mixing multi-bin cotton mixer → FA016 cotton opener → FA076 single-beater hand roll forming machine → FA201B carding machine; and the proportion of acrylic in the acrylic / Lobby mixed fiber can be selected to be 1 times the difference between the quantitative difference between the prepared acrylic / Lobby raw sliver and the acrylic raw sliver;

[0047] (Lobby fiber + Modal raw sliver): manual mixing → ZFA026 automatic cotton mixer → FA025 differential mixing multi-bin cotton mixer → FA016 cotton opener → FA076 single-beater hand roll forming machine → FA201B carding machine; and the proportion of modal in the modal / lobby mixed fiber can be selected to be 1 times the difference between the prepared modal / lobby raw sliver and the modal raw sliver;

[0048] Three acrylic fiber / Lobu ramie raw strips and three acrylic fiber raw strips are processed through a JWF1310 drawing machine to obtain acrylic fiber / Lobu ramie strips; three modal / Lobu ramie raw strips and three modal raw strips are processed through a JWF1310 drawing machine to obtain modal / Lobu ramie strips;

[0049] (Acrylic / Lobby flax strips + Modal / Lobby flax strips): JWF1310 drawing frame (three-pass) → JWF1415 roving frame → DTM129 all-poly spinning frame

[0050] (3) Design of key process parameters

[0051] Opening and cleaning:

[0052]

[0053] Pre-combed apocynum:

[0054]

[0055] Carding:

[0056]

[0057] Drawing:

[0058]

[0059] Roving:

[0060]

[0061]

[0062] Fine yarn:

[0063] (a) Basis weight and draft design:

[0064] According to the Cotton Spinning Manual and the DTM129 Quanjufang Spinning Machine Instructions, the actual roving weight is 4.90g / 10m, and the spun yarn weight is 18.5g / 1000m, then:

[0065] E real = 26.486

[0066] The test shows that the mechanical drawing efficiency η = 95%

[0067] E machine = 26.486 / 0.95 = 27.880

[0068] Refer to the "DTM129 Quanjufang Spinning Machine Manual" and select the gear configuration of E=28.070, Za=61, Zb=67.

[0069] (b) Twist design:

[0070] Refer to the Cotton Spinning Handbook, and set the twist coefficient ɑ=350 according to the yarn density and the requirements of the designed fabric.

[0071] T=81.373(twist / 10cm)

[0072] Refer to the twist formula of DTM129 all-poly spinning frame manual and the transmission diagram of the spinning frame to calculate the twist:

[0073] Refer to the "DTM129 Full Poly Spinning Machine Manual" and select the gear configuration with twist T=81.21, Z3=42, and Z4=68.

[0074] (4) Yarn quality test:

[0075] Yarn evenness

[0076]

[0077] Yarn hairiness

[0078]

[0079] (5) Fabric performance test:

[0080] The processed antibacterial blended yarn was woven on a JX90A-190 air-jet loom to obtain the corresponding fabric, and the antibacterial property of the fabric was tested. The antibacterial property of the fabric was tested according to GB / T 20944.3-2008 "Evaluation of Antibacterial Properties of Textiles Part 3: Oscillation Method". After washing 50 times, the inhibition rates of Staphylococcus aureus, Escherichia coli, and Candida albicans were 91.6%, 96.8%, and 96.8%, respectively. The individual judgments all met the requirements. Therefore, the fabric has excellent and lasting antibacterial properties.

[0081] The above describes in detail the structure, features and effects of the present invention based on the embodiments shown in the drawings. The above is only a preferred embodiment of the present invention, but the present invention is not limited to the scope of implementation shown in the drawings. Any changes made according to the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and drawings, should be within the protection scope of the present invention.

Claims

1. A method for producing a health-care blended yarn, characterized in that: The following steps are involved: The apocynum venetum fibers are subjected to health treatment after being degummed; The apocynum venetum fibers after health treatment are fed into a pre-combing and carding machine including a double-combing mechanism for pre-combing, so as to remove short fibers and impurities and obtain apocynum venetum fiber bundle with improved fiber length distribution consistency; The acrylic fiber and the modal fiber are independently and successively grasped and initially opened and mixed by a cotton grabbing machine, mixed and opened and removed impurities by a mixed cotton opening machine, opened and removed impurities by a cotton opening machine, rolled evenly by a single-beater rolling machine, and finely combed and removed impurities by a cotton carding machine to prepare acrylic raw sliver and modal raw sliver respectively, and parts of the acrylic raw sliver and the modal raw sliver are manually torn into fiber states and then manually mixed with the prepared apocynum fiber bundles respectively, and the manually mixed apocynum and acrylic fibers The acrylic ratio is within 10%, and the modal ratio of the manually mixed apocynum and modal fibers is within 10%. The manually mixed acrylic fibers and apocynum fibers, and the modal fibers and apocynum fibers are independently and sequentially grasped and initially opened and mixed by a cotton grasping machine, mixed and opened and removed impurities by a mixed cotton opening machine, opened and removed impurities by a cotton opening machine, uniformly rolled by a single-beater hand-rolling machine, and finely combed and removed impurities by a cotton carding machine to form strips, so as to respectively prepare acrylic fiber / pocynum sliver and modal / pocynum sliver; A cylinder-cover carding machine is selected, and a fully enclosed small leak bottom is selected at the bottom of the cylinder. In the carding process, the process parameters are set mainly based on the characteristics of the apocynum fiber. Then, the prepared acrylic / pocynum raw sliver is drawn with the acrylic raw sliver to obtain the acrylic / pocynum raw sliver, and the prepared modal / pocynum raw sliver is drawn with the modal raw sliver to obtain the modal / pocynum raw sliver. By mixing the acrylic / pocynum raw sliver with the acrylic raw sliver, and the modal / pocynum raw sliver with the modal raw sliver, the drafting process is reduced. The displacement deviation generated in the process is eliminated, and the mixing ratio of apocynum flax, acrylic fiber and modal fiber in the blended yarn is controlled, and the obtained acrylic fiber / pocynum flax strips and modal fiber / pocynum flax strips have the same quantitative. Then, the same number of acrylic fiber / pocynum flax strips and modal fiber / pocynum flax strips are drawn together through one drawing process to achieve the mixing of the three fibers, and then through two drawing processes to achieve a more refined mixing of the three fibers and obtain acrylic fiber / modal / pocynum flax cooked yarn with good yarn uniformity, and then the final health-care blended yarn is obtained through the roving and spun yarn processes in sequence.

2. The method for producing a health-care blended yarn according to claim 1, characterized in that: The pre-combing machine includes a first-level combing mechanism and a second-level combing mechanism, the first-level combing mechanism includes a feeding device, an opening device, and a combing device, the second-level combing mechanism includes a combing device and an output device, and a transfer device is provided between the combing device of the first-level combing mechanism and the combing device of the second-level combing mechanism.

3. The method for producing a health-care blended yarn according to claim 2, characterized in that: The feeding device comprises a feeding box, which is a hollow and closed rectangular parallelepiped. A negative pressure dust cage is arranged in the feeding box. A fiber input port is arranged at one end of the feeding box. The fiber input port is interconnected with a fiber input pipe. A fiber suction box is arranged at the other end of the fiber input pipe. The fiber suction box is a hollow isosceles trapezoidal structure. The width of the fiber suction box gradually decreases along the movement direction of the fiber in the fiber suction box. The two ends of the fiber suction box are open. A ramie conveyor belt is arranged at the open and wide end of the fiber suction box. The ramie fiber treated by health care is transported through the ramie conveyor belt. The open and narrow end of the fiber suction box is interconnected with the fiber output pipe. A first photoelectric device and a second photoelectric device with the same structure are arranged at a certain height position in the feeding box. The first photoelectric device is located directly above the second photoelectric device and a certain distance is maintained between the two. The first photoelectric device and the second photoelectric device include a light emitting device and a light receiving device. The light emitting device and the light receiving device are respectively located on two opposite sides in the feeding box, and The two are kept horizontally aligned, the lower side of the feed box is open, and an output roller pair is arranged on the open lower side of the feed box, the output roller pair includes a first output roller and a second output roller, the first output roller and the second output roller are the same wooden rollers, the first output roller and the second output roller are kept close to and completely cover the lower side of the feed box, the first output roller is rotatably connected to one side of the lower side of the feed box, and the second output roller is rotatably connected to the other side of the lower side of the feed box The first output roller is driven to rotate by an output motor, and the output motor is communicatively connected with the first photoelectric device and the second photoelectric device. A hemp input conveyor belt is arranged below the feeding box, and a hemp input supporting plate is arranged at the front of the hemp input conveyor belt. The hemp input supporting plate is a downwardly curved arc structure, and a hemp input roller is arranged above the hemp input supporting plate. The hemp input roller is in press contact with the hemp input supporting plate, and the hemp input roller is driven to rotate by a corresponding transmission mechanism.

4. The method for producing a health-care blended yarn according to claim 3, characterized in that: The opening device includes an opening roller, on which an opening needle cloth is arranged, and a certain number of rows of short knives are arranged on the rear side below the opening roller, the row of short knives is a triangular prism structure, one side of the row of short knives faces the opening roller, and the distance between two adjacent rows of short knives gradually increases, and a first supporting arc is arranged in front of the row of short knives, the first supporting arc is a downwardly convex arc plate, and a certain number of first debris removal seams are opened in the width direction of the first supporting arc.

5. The method for producing a health-care blended yarn according to claim 4, characterized in that: The combing device comprises an upper combing cover and a lower combing roller, the upper combing cover is an annular arc structure, the upper combing cover is driven to rotate by a corresponding transmission mechanism, an upper combing needle cloth is arranged on the side of the upper combing cover facing outward, the lower combing roller is a hollow cylindrical structure, the lower combing roller is driven to rotate by a corresponding transmission mechanism, and the upper combing cover of the first-level combing mechanism and the lower combing roller of the second-level combing mechanism have opposite rotation directions, and the upper combing cover and the lower combing roller of the second-level combing mechanism have the same rotation direction, the rotation linear speed of the upper combing cover is smaller than the rotation linear speed of the lower combing roller, and the linear speed difference between the upper combing cover and the lower combing roller of the first-level combing mechanism is larger than the linear speed difference between the upper combing cover and the lower combing roller of the second-level combing mechanism.

6. The method for producing a health-care blended yarn according to claim 5, characterized in that: The output device comprises an output roller, which is a solid cylindrical structure. An output needle cloth is arranged on the side of the output roller. The output roller is close to the lower combing roller of the second-level combing mechanism, and a ramie collection box is arranged directly below the output roller.

7. The method for producing a health-care blended yarn according to claim 6, characterized in that: In the pre-combing process, the health-treated apocynum fibers are conveyed via the apocynum transmission belt, and the conveyed apocynum fibers are adsorbed into the fiber input pipe through the fiber suction box under the action of the negative pressure generated in the negative pressure dust cage. In this process, the apocynum fibers sucked in a relatively loose state are gradually gathered in the fiber suction box with a gradually decreasing width, and enter the feeding box through the fiber input pipe, forming a apocynum fiber layer stacked at a certain height in the feeding box. When the apocynum fiber layer reaches the height of the first photoelectric device, the light emitted by the light emitting device of the first photoelectric device is blocked by the apocynum fibers, so that the light receiving device of the first photoelectric device cannot receive the light signal. At this time, the output motor drives the first output roller to rotate, so that the apocynum fibers in the feeding box The apocynum fiber is output under the drive of the output roller pair and falls onto the apocynum input conveyor belt. When the apocynum fiber layer does not reach the height of the first photoelectric device, the output motor stops working, so that the height of the apocynum fiber layer in the feeding box continues to increase. When the apocynum fiber layer reaches the height of the second photoelectric device, the light emitted by the light emitting device of the second photoelectric device is blocked by the apocynum fiber, so that the light receiving device of the second photoelectric device cannot receive the light signal. At this time, the negative pressure dust cage stops working, so that the apocynum fiber stops entering the feeding box, so that the apocynum fiber is output when the height of the apocynum fiber layer in the feeding box is between the first photoelectric device and the second photoelectric device, so as to achieve uniform output of the apocynum fiber under the pressure generated at a certain range of heights; The outputted apocynum fiber is driven by the apocynum input conveyor belt and enters between the apocynum input supporting plate and the apocynum input roller, and is continuously pressed and fed under the drive of the rotating apocynum input roller. During the feeding process, the apocynum fiber is pressed at one end, and the other end receives the striking and loosening effect of the rotating opening roller, and the apocynum fiber is loosened under the striking and loosening effect until the apocynum fiber is completely transferred to the opening roller, and the transferred apocynum fiber immediately enters between the opening roller and the row of short knives. During this process, the shorter fibers will be in a state where both ends are not supported by the row of short knives, so that the fibers fall under the action of centrifugal force, and then some short fibers are eliminated. At the same time, the impurities exposed in the striking and opening fall from the air strikes between the rows of short knives under the action of centrifugal force, so that the impurities are eliminated. The apocynum fibers then enter between the opening roller and the first supporting arc. Under the supporting action of the first supporting arc, the apocynum fibers overcome the external force and continue to be driven to rotate by the opening roller. When the apocynum fiber rotates to between the opening roller and the lower combing roller of the first-level combing mechanism, the apocynum fiber on the opening roller is completely grasped by the lower combing roller and then transferred, and the transferred apocynum fiber then enters between the upper combing cover and the lower combing roller, and in the area therebetween, the upper combing cover and the lower combing roller keep rotating in the same direction, at this time, the short fibers brought in by the lower combing roller and located on the surface layer cannot be effectively held by the lower combing needle clothing, and thus slide to between the upper combing needle clothings of the upper combing cover under the action of centrifugal force, and because the fibers are short, they are The short fibers sink between the upper card clothings and cannot be caught by the lower card clothing of the lower card roller again, thereby achieving the elimination of some short fibers. The longer fibers are repeatedly caught by the upper card clothing and the lower card clothing, thereby repeatedly transferring between the two. During the transfer process, the connection force between the fibers is gradually reduced, thereby achieving the combing effect on the fibers. At the same time, the impurities will slide between the upper card clothings of the upper card cover under the action of centrifugal force, thereby achieving the elimination of some impurities. The short fibers and impurities that sink between the upper card clothings are taken out by the rotating upper card cover and then removed. The combed apocynum fibers are brought out by the lower combing roller, and then immediately enter between the lower combing roller and the transfer roller. The apocynum fibers on the lower combing roller are completely grabbed by the transfer roller and then transferred. The transferred apocynum fibers are driven to rotate by the transfer roller until they enter between the transfer roller and the second supporting arc. Under the supporting action of the second supporting arc, the apocynum fibers overcome the external force and continue to be driven to rotate by the transfer roller. At the same time, the gradually exposed impurities fall along the second impurity removal seam under the action of centrifugal force and are removed. When the apocynum fibers rotate between the transfer roller and the lower combing roller of the second-stage combing mechanism, the apocynum fibers on the transfer roller are completely grabbed by the lower combing roller and then transferred. The transferred apocynum fibers then enter between the upper combing cover and the lower combing roller, and in the area between the two, the upper combing cover and the lower combing roller keep rotating in opposite directions. At this time, the shorter fibers brought in by the lower combing roller and located on the surface cannot be effectively held by the lower combing card clothing, and are directly grasped by the upper combing card clothing of the upper combing cover. Moreover, since the fibers are short, they directly sink between the upper combing card clothing and cannot be grasped by the lower combing card clothing of the lower combing roller again, thereby achieving the elimination of some shorter fibers, and the longer fibers will be caught by the upper combing card clothing. The combing card clothing and the lower combing card clothing are repeatedly grasped, thereby repeatedly transferring between the two. During the transfer process, the connecting force between the fibers is gradually reduced, thereby realizing the combing effect on the fibers. The shorter fibers sunk between the upper combing card clothings are brought out by the rotating upper combing cover and then removed. The combed apocynum fibers are brought out by the lower combing roller, and then immediately enter between the lower combing roller and the output roller. The apocynum fibers on the lower combing roller are completely grasped by the output roller and directly fall into the apocynum collecting box under their own gravity to obtain the required apocynum fiber bundles.

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