Production method of antibacterial fabric

Abstract

The invention discloses a production method of an antibacterial fabric, which comprises the following steps: selecting acrylic fibers, modal and chinlon as raw materials, mixing the acrylic fibers, the modal and the chinlon, and then drawing by adopting a sliver can device comprising a high-speed rotating twisting sliver can and a low-speed rotating winding sliver can, according to the utility model, the fiber rods thrown out by the coiling disc above are in friction contact with the upper pre-twisting can which rotates at a high speed, so that the pre-twisting effect is generated on the fiber rods, the rotation and untwisting effects are realized after the fiber rods pass through the middle untwisting can which is kept static, and the fiber rods which are untwisted are finally subjected to friction twisting after passing through the lower twisting can which rotates at a high speed. And the fibers in the fiber strips subjected to friction twisting and the untwisted fibers are mutually intertwined in the transfer process, so that the twisting effect of the prepared mixed strips in the winding process is realized, the direct processing from strips to spun yarns is realized, the yarn forming efficiency is greatly improved, and the production cost is reduced. And high-efficiency production of the high-grade fabric with antibacterial, comfortable, ultraviolet-proof and durable characteristics is realized.

Description

Technical Field

[0001] This invention relates to the field of new spinning technology, and in particular to a method for producing antibacterial fabrics. Background Technology

[0002] In the textile industry, the quality and properties of yarn directly affect the comfort and durability of the final product. Acrylic fiber possesses excellent light resistance and antibacterial properties due to its unique acrylonitrile copolymer structure; Modal fiber is known for its regenerated cellulose source, good moisture absorption and breathability, and dimensional stability; while nylon is known for its high strength, strong abrasion resistance, and excellent mechanical properties.

[0003] Sliver is one of the most important semi-finished products in the spinning process, involving three major steps: carding, combing, and drawing. During production, the sliver needs to be wound in an orderly fashion within a sliver can of a certain diameter. In the traditional winding process, the sliver output mechanism, the winding disc, rotates in tandem with the sliver can. This coordinated rotation causes the sliver to wind continuously within the can in a specific elliptical structure, with the fibers not completely overlapping. Direct winding during the fiber winding process results in an untwisted sliver, meaning the fibers are untwisted. This leads to weak inter-fiber interaction forces, making the sliver prone to unexpected stretching during feeding into the roving process, thus affecting roving quality. Furthermore, the untwisted nature of the sliver weakens the internal friction field between fibers in the drafting system of the roving frame, limiting the sliver's drafting efficiency and impacting the overall production efficiency of the spinning process. Summary of the Invention

[0004] The purpose of this invention is to provide a method for producing antibacterial fabrics. The method uses acrylic, modal, and nylon fibers as raw materials. In the mixing and drawing process, a sliver can device is employed, including a high-speed rotating twisting sliver can and a low-speed rotating winding sliver can. This device achieves twisting of the resulting mixed sliver during the winding process, thereby enabling direct processing from sliver to yarn, significantly improving yarn production efficiency. This results in the efficient production of high-end fabrics that combine antibacterial, comfortable, UV-protective, and durable properties.

[0005] This invention provides a method for producing antibacterial fabric, comprising the following steps: Step 1: Fibers into strips Acrylic fiber, modal fiber, and organic antibacterial nylon fiber are pretreated separately; modal fiber and nylon fiber are weighed and mixed, and then repackaged to obtain modal / nylon blended packages with the required mixing ratio; the blended packages and acrylic fiber are respectively opened and cleaned into rolls, carded into slivers, and pre-combined and finished to obtain modal / nylon slivers and acrylic fiber slivers required for the blend. Step 2: Blending into yarn Acrylic / modal / nylon slivers of 6-8 strands are mixed with modal / nylon slivers in the required ratio and then processed into acrylic / modal / nylon slivers through a first drawing process. These slivers are then processed into semi-finished acrylic / modal / nylon slivers with a weight of less than 20g / 5m through a second drawing process. Finally, a finished acrylic / modal / nylon sliver with a weight of less than 10g / 5m through a third drawing process is obtained. The second and third drawing processes are performed using a drawing frame equipped with an intelligent twisting and winding system for fiber slivers, consisting of a coiling device and a sliver holding device. The finished acrylic / modal / nylon slivers are then spun into acrylic / modal / nylon blended yarn tubes, which are then wound into cone yarns. The coiling device includes a coiling disc with a fiber inlet and outlet, and is driven by a first motor via a first belt. The sliver holding device includes a sliver can consisting of a twisting sliver can and a winding sliver can, and a base. The twisting sliver can includes an upper pre-twist sliver can, a middle untwist sliver can, and a lower twisting sliver can, whose diameters gradually increase from top to bottom and are connected to each other by bearings. The inner surfaces of the upper pre-twist sliver can and the lower twisting sliver can are provided with friction coatings, and both are driven to rotate synchronously by a second motor via a second and a third belt, respectively. The winding sliver can is located below the lower twisting sliver can, and a support plate is fixedly installed at its lower end, while a sliver feeding plate is slidably installed thereon, and the two are connected by a connecting spring. The base includes a fixed base, on which a rotating drive ring driven by a third motor via a fourth belt is rotatably connected, and a sliver can embedding groove is opened at its upper end. The fiber sliver ejected by the coiling disc comes into frictional contact with the high-speed rotating upper pre-twisting sliver, which pre-twists the fiber sliver. Then, it rotates and untwises through the stationary middle untwisting sliver. The untwisted fiber sliver is then frictionally twisted through the high-speed rotating lower twisting sliver. This causes the fibers in the frictionally twisted fiber sliver to become entangled with the untwisted fibers during the transfer, thus achieving fiber sliver twisting. Step 3: Fabric Preparation Acrylic / modal / nylon blended yarns are warped and sized to produce warp yarns, which are then used directly as weft yarns. The warp and weft yarns are woven together to produce high-grade antibacterial and health-care fabrics. After desizing, heat setting, softening and antistatic finishing, high-grade antibacterial fabrics are produced.

[0006] In the production method of the antibacterial fabric described above, preferably, the looper disc is a hollow and closed cylindrical shape. A looper disc connection port is opened at the center of the upper side of the looper disc. The looper disc connection port has a circular structure, and a connecting bearing is disposed within the looper disc connection port. The connecting bearing is fixedly embedded within the looper disc connection port. The lower side of the connecting bearing is level with the lower edge of the upper side of the looper disc, and the upper side of the connecting bearing extends beyond the upper edge of the upper side of the looper disc. The connecting bearing has a hollow center structure, and the inner surface of the hollow center of the connecting bearing is kept smooth, forming the entry point for the fiber sliver. The upper side of the connecting bearing is fixedly connected to the looper connecting arm of the drawing frame. The connecting bearing is connected to the end point of the looper connecting arm of the drawing frame. A fiber inlet is located at a point, with the upper and lower inlets aligned vertically to form the fiber inlet. A fiber outlet is located on the lower side of the coiled disc, and these outlets are circular, with 3-8 outlets in total. All outlets are aligned on the same straight line, and the line connecting them passes through the center of the lower side of the coiled disc. The innermost outlet maintains a certain distance from the center of the lower side of the coiled disc. All outlets are arranged at equal intervals. A first drive groove is located along the circumference of the coiled disc's side. The coiled disc is driven to rotate by a first motor via a first belt. The first belt is annular and rotates after passing through the first drive groove of the coiled disc.

[0007] In the production method of the antibacterial fabric described above, preferably, the upper pre-twist sliver, the middle untwist sliver, and the lower twist sliver are all hollow, variable-diameter cylinders with open upper and lower ends; the diameter of the upper pre-twist sliver gradually increases from the upper end to the lower end, the diameter of the middle untwist sliver gradually increases from the upper end to the lower end, and the diameter of the upper end of the middle untwist sliver is the same as the diameter of the lower end of the upper pre-twist sliver; the diameter of the lower twist sliver gradually increases from the upper end to the lower end, and the diameter of the upper end of the lower twist sliver is the same as the diameter of the lower end of the middle untwist sliver; the upper pre-twist sliver and the lower twist sliver are of the same height. The height of the middle untwisting sliver can is less than the height of the upper pretwisting sliver can and the lower twisting sliver can. The side wall of the open circular surface at the lower end of the upper pretwisting sliver can is connected to the side wall of the open circular surface at the upper end of the middle untwisting sliver can through a first connecting bearing. The side wall of the open circular surface at the upper end of the lower twisting sliver can is connected to the side wall of the open circular surface at the lower end of the middle untwisting sliver can through a second connecting bearing. A second driving groove is opened along the circumferential direction of the side of the upper pretwisting sliver can, and a third driving groove is opened along the circumferential direction of the side of the lower twisting sliver can. The upper pretwisting sliver can is driven to rotate by a second motor through a second belt, and the lower twisting sliver can be driven to rotate by a second motor through a third belt.

[0008] In the above-described method for producing an antibacterial fabric, preferably, the inner surfaces of the upper pre-twist sliver and the lower twist sliver are provided with the same friction coating, so that the inner surfaces of the upper pre-twist sliver and the lower twist sliver have a certain friction force, while the inner surface of the middle untwist sliver remains smooth.

[0009] In the production method of the antibacterial fabric described above, preferably, the winding spool is a hollow cylinder with an open upper and lower end and a constant diameter. The diameter of the winding spool is the same as the diameter of the lower end of the lower twisting spool. The height of the winding spool is more than 10 times the height of the upper pre-twisted spool and the lower twisting spool. The sidewall of the open circular surface at the lower end of the lower twisting spool is connected to the sidewall of the open circular surface at the upper end of the winding spool by a third connecting bearing. The inner surface of the winding spool remains smooth.

[0010] In the method for producing an antibacterial fabric as described above, preferably, a support plate is provided inside the winding sliver. The support plate has a circular structure and is fixedly connected to the inner side of the lower end of the winding sliver. A first and second embedding groove with identical structures are formed on the inner side of the winding sliver located above the support plate. The first and second embedding grooves are arranged along the height direction of the inner side of the winding sliver, and the horizontal line connecting the first and second embedding grooves passes through the center of the winding sliver. A feeding plate with a circular structure is provided above the support plate, and a first and second embedding pin with identical structures are provided on the side of the feeding plate. The horizontal line connecting the first and second insert pins passes through the center of the feeding disc. The geometry of the first and second insert pins is the same as that of the first and second insert grooves. The feeding disc is set inside the winding drum, with the first insert pin fully embedded in the first insert groove and the second insert pin fully embedded in the second insert groove. A connecting spring is provided between the feeding disc and the support disc. The upper end of the connecting spring is fixedly connected to the lower side of the feeding disc, and the lower end of the connecting spring is fixedly connected to the upper side of the support disc. When the support disc compresses the connecting spring under its own weight, the feeding disc and the upper end of the winding drum remain horizontal.

[0011] In the production method of the antibacterial fabric described above, preferably, a base is set in a pit, the pit being a cylindrical shape with a certain depth. The base includes a fixed base plate, which is a circular plate. The fixed base plate is fixedly set in the pit. A passive rotation embedding groove is set along the outer circumference of the upper side of the fixed plate. The upper side of the passive rotation embedding groove is level with the upper side of the fixed plate. A certain distance is maintained between the bottom of the passive rotation embedding groove and the lower side of the fixed plate. A ball bearing is set in the passive rotation embedding groove. The diameter of the ball bearing is smaller than the height of the passive rotation embedding groove. The ball bearing is arranged at a certain arc interval in the passive rotation embedding groove. The arc length of the interval between two adjacent ball bearings in the passive rotation embedding groove is smaller than the radius of the ball bearing. A rotation driving ring is set in the passive rotation embedding groove located above the ball bearing.

[0012] In the method for producing an antibacterial fabric as described above, preferably, the rotating drive ring is a circular ring structure with a certain thickness. The thickness of the rotating drive ring is less than the width of the rotating embedding groove, and the height of the rotating drive ring is greater than the height of the fixed disc. An active rotating embedding groove is formed along the circumferential direction of the lower end of the rotating drive ring. The lower end of the rotating drive ring is embedded in the passive rotating embedding groove, and at this time, the active rotating embedding groove of the rotating drive ring presses against the ball bearings. The ball bearings are respectively embedded in the active rotating embedding groove of the rotating drive ring and the passive rotating embedding groove of the fixed disc. Inside the groove, the upper end of the rotating drive ring extends out of the passive rotation embedding groove of the fixed disc. A strip embedding groove is opened along the circumference of the upper end of the rotating drive ring. The width of the strip embedding groove is greater than the thickness of the wall of the wound strip. The outer diameter of the rotating drive ring is greater than the outer diameter of the wound strip. A fourth drive groove is opened along the circumference of the side of the passive rotation embedding groove of the rotating drive ring extending out of the fixed disc. The rotating drive ring is driven to rotate by a third motor through a fourth belt. The fourth belt has a ring structure. After the fourth belt passes around the fourth drive groove of the rotating drive ring, it is driven to rotate by the third motor.

[0013] In the above-described method for producing antibacterial fabric, preferably, the rotational speed of the upper pre-twisted sliver tube and the lower twisting sliver tube is greater than the rotational speed of the coiling disc, and the rotational speed of the coiling disc is greater than the rotational speed of the rotating drive ring.

[0014] In the production method of the antibacterial fabric described above, preferably, the coiling disc rotates, thereby driving the fiber sliver entering through the fiber inlet and exiting through the fiber outlet to rotate synchronously. During the rotation, the fiber sliver is output from the coiling disc, and the output fiber sliver generates centrifugal force under the rotation of the coiling disc, causing the fiber sliver output from the coiling disc to be thrown upwards to the pre-twisting sliver can. One side of the fiber sliver contacts the inner wall of the upper pre-twisting sliver can with a certain force. The contact point between the fiber sliver and the upper pre-twisting sliver can constitutes the pre-twisting point. The high-speed rotating upper pre-twisting sliver can generates a frictional force on the fiber sliver at the pre-twisting point. Under the action of the frictional force, the fibers in the fiber sliver are driven to pre-twist along the axial direction of the fiber sliver, thus generating a pre-twisting effect on the fiber sliver at the pre-twisting point. The pre-twisted fiber sliver falls rapidly into the middle untwisting can. Due to the high-speed rotation of the upper pre-twisting can and the diameter setting of the upper pre-twisting can, the pre-twisting points of the fiber sliver are only distributed within a semi-circular arc along the axial circumference. As the fiber sliver falls into the middle untwisting can, it is freed from the frictional force of the upper pre-twisting can, causing the fiber sliver to undergo a corresponding untwisting action at the pre-twisting point. Under the untwisting action, on the one hand, the fiber at the pre-twisting point of the fiber sliver undergoes untwisting rotation along the axial direction, and the direction of untwisting rotation is opposite to the direction of pre-twisting rotation. On the other hand, the fiber sliver undergoes an overall axial rotation during the untwisting process. Under the overall rotation of the fiber sliver, the pre-twisting point is flipped from the side of the fiber sliver that is close to the upper pre-twisting can to the side that is opposite to the pre-twisting can. During the untwisting process, the fiber sliver falls rapidly into the lower twisting can. Due to the centrifugal force that has not completely dissipated, one side of the fiber sliver contacts the inner wall of the lower twisting can with a certain force. The contact point between the fiber sliver and the lower twisting can constitutes the twisting point. The twisting points of the fiber sliver are only distributed in another semi-circular arc along the axial circumference, so that the pre-twisting point and the twisting point are distributed along the axial direction of the fiber sliver and do not completely coincide. The high-speed rotating lower twisting can generates a frictional force on the fiber sliver at the twisting point. Under the action of friction, the fibers in the fiber sliver are driven to twist and rotate along the axial direction of the fiber sliver. Under the action of twisting rotation, the fibers in the fiber sliver twist and rotate along the axial direction of the fiber sliver at the twisting point. The direction of the fiber twisting rotation is opposite to the direction of the fiber untwisting rotation, so that the twisting and rotating fibers and the fibers that are still untwisting rotate with each other. During the fiber entanglement process, the fiber sliver acquires twist. Compared with existing technologies, this invention uses acrylic, modal, and nylon fibers as raw materials. In the drawing process after mixing the three fibers, a sliver can device is used, which includes a high-speed rotating twisting sliver can and a low-speed rotating winding sliver can. This allows the fiber sliver thrown out by the upper coiling disc to come into frictional contact with the high-speed rotating upper pre-twisting sliver can, thereby pre-twisting the fiber sliver. The pre-twisted fiber sliver then passes through a stationary middle untwisting sliver can, achieving rotation and untwisting. Finally, the untwisted fiber sliver passes through a high-speed rotating lower twisting sliver can, achieving frictional twisting. This causes the fibers in the frictionally twisted fiber sliver to intertwine with the untwisted fibers during the transfer process, thereby achieving the twisting effect on the resulting mixed sliver during the winding process. This enables direct processing from sliver to yarn, significantly improving yarn production efficiency and achieving the efficient production of high-end fabrics with antibacterial, comfortable, UV-protective, and durable properties. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the intelligent twisting and winding system for fiber strips provided in an embodiment of the present invention.

[0016] Explanation of reference numerals in the attached drawings: 1-winding disc, 2-first belt, 3-first motor, 4-fiber output port, 5-fiber inlet, 6-sliver can, 7-upper pre-twist sliver can, 8-middle untwist sliver can, 9-lower twisting sliver can, 10-second belt, 11-third belt, 12-second motor, 13-unwinding disc, 14-first insert pin, 15-second insert pin, 16-first insert groove, 17-second insert groove, 18-connecting spring, 19-support disc, 20-fixed base, 21-fourth belt, 22-third motor, 23-rotation drive ring, 24-winding can. Detailed Implementation

[0017] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0018] This invention provides a method for producing antibacterial fabric, comprising the following steps: Step 1: Fibers into strips Acrylic, Modal, and organic antibacterial nylon fibers are pretreated separately. Then, the acrylic fibers are sequentially opened, cleaned, carded, and pre-combined to obtain the required acrylic slivers. The Modal and organic antibacterial nylon fibers are weighed and mixed, and then repackaged to obtain the required Modal / nylon blended package. The Modal / nylon blended package is sequentially opened, cleaned, carded, and pre-combined to obtain the required Modal / nylon slivers.

[0019] Step 2: Blending into yarn A certain amount of acrylic sliver obtained in the first step is mixed with modal / nylon sliver in the required mixing ratio and then processed into acrylic / modal / nylon sliver through the first drawing process. Six to eight acrylic / modal / nylon slivers are then processed into acrylic / modal / nylon semi-cooked sliver with a basis weight of less than 20g / 5m through the second drawing process. Six to eight acrylic / modal / nylon semi-cooked slivers are then processed into acrylic / modal / nylon cooked sliver with a basis weight of less than 10g / 5m through the third drawing process. The second and third drawing processes are carried out using a drawing frame equipped with an intelligent fiber sliver twisting and winding system.

[0020] Reference Figure 1 As shown, the intelligent twisting and winding system for fiber slivers includes a sliver coiling device and a sliver holding device.

[0021] The coiling device is located above the sliver holding device. The coiling device includes a coiling disc 1, which is a hollow and closed cylinder. A coiling disc connection port is located at the center of the upper side of the coiling disc 1. The connection port is circular, and a connecting bearing is installed inside it. The connecting bearing is fixedly embedded within the connection port. The lower side of the connecting bearing is horizontal to the lower edge of the upper side of the coiling disc 1, while the upper side extends beyond the upper edge of the upper side of the coiling disc 1. The connecting bearing has a hollow center, and its inner surface is smooth, forming the lower inlet for the fiber sliver. The upper side of the connecting bearing is fixedly connected to the coiling connecting arm of the drawing frame. The connecting bearing is connected to the end point of the coiling connecting arm, where a fiber inlet is located. The upper inlet and the lower inlet of the fiber are aligned vertically to form the fiber inlet 5. A fiber outlet 4 is opened on the lower side of the coiling disc 1. The fiber outlet 4 is circular and the number of fiber outlets 4 is between 3 and 8. All fiber outlets 4 are located on the same straight line and the line connecting all fiber outlets 4 passes through the center of the lower side of the coiling disc 1. The innermost fiber outlet 4 is kept at a certain distance from the center of the lower side of the coiling disc 1. All fiber outlets 4 are arranged at equal intervals. A first driving groove is opened along the circumference of the side of the coiling disc 1. The coiling disc 1 is driven to rotate by a first motor 3 through a first belt 2. The first belt 2 is an annular structure. After the first belt 2 passes around the first driving groove of the coiling disc 1, it is driven to rotate by the first motor 3, which in turn drives the coiling disc 1 to rotate.

[0022] The bar holding device includes a bar canister 6 and a base.

[0023] The sliver 6 includes a twisted sliver 6 and a wound sliver 24.

[0024] The twisting tube 6 is located above the winding tube 6. The twisting tube 6 includes an upper pre-twist tube 7, a middle untwist tube 8, and a lower twisting tube 9. The upper pre-twist tube 7, the middle untwist tube 8, and the lower twisting tube 9 are all hollow, variable-diameter cylinders with open upper and lower ends.

[0025] The diameter of the upper pre-twisted sliver can 7 gradually increases from the upper end to the lower end. The diameter of the middle untwisted sliver can 8 gradually increases from the upper end to the lower end, and the diameter of the upper end of the middle untwisted sliver can 8 is the same as the diameter of the lower end of the upper pre-twisted sliver can 7. The diameter of the lower twisting sliver can 9 gradually increases from the upper end to the lower end, and the diameter of the upper end of the lower twisting sliver can 9 is the same as the diameter of the lower end of the middle untwisted sliver can 8. The upper pre-twisted sliver can 7 and the lower twisting sliver can 9 have the same height. The middle untwisted sliver can 8... The height of the upper pre-twisted sliver can 7 is less than the height of the lower twisting sliver can 9. The inner surfaces of the upper pre-twisted sliver can 7 and the lower twisting sliver can 9 are provided with the same friction coating, giving the inner surfaces of the upper pre-twisted sliver can 7 and the lower twisting sliver can 9 a certain degree of friction. The inner surface of the middle untwisted sliver can 8 remains smooth. The sidewall of the open circular surface at the lower end of the upper pre-twisted sliver can 7 is connected to the sidewall of the open circular surface at the upper end of the middle untwisted sliver can 8 via a first connecting bearing. The sidewall of the open circular surface at the upper end of the lower twisting sliver can 9... The wall of the upper pre-twisted sliver 7 is connected to the side wall of the open circular surface at the lower end of the middle untwisted sliver 8 by a second connecting bearing. A second driving groove is opened along the circumferential direction of the side of the upper pre-twisted sliver 7, and a third driving groove is opened along the circumferential direction of the side of the lower twisted sliver 9. The upper pre-twisted sliver 7 is driven to rotate by the second motor 12 via the second belt 10. The second belt 10 has a ring structure. After passing over the second driving groove of the upper pre-twisted sliver 7, the second belt 10 is driven to rotate by the second motor 12, thereby driving the upper pre-twisted sliver 7 to rotate. The lower twisted sliver 9 is driven to rotate by the second motor 12 via the third belt 11. The third belt 11 has a ring structure. After passing over the third driving groove of the lower twisted sliver 9, the third belt 11 is driven to rotate by the second motor 12, thereby driving the lower twisted sliver 9 to rotate. This ensures that the rotation speed and direction of the upper pre-twisted sliver 7 and the lower twisted sliver 9 are consistent, and that the middle untwisted sliver 8 remains stationary during the rotation of the upper pre-twisted sliver 7 and the lower twisted sliver 9.

[0026] The winding sliver 24 is positioned below the lower twisting sliver 9. The winding sliver 24 is a hollow cylinder with an open upper and lower end and a constant diameter. The diameter of the winding sliver 24 is the same as the diameter of the lower end of the lower twisting sliver 9. The height of the winding sliver 24 is more than 10 times the height of the upper pre-twist sliver 7 and the lower twisting sliver 9. The sidewall of the open circular surface at the lower end of the lower twisting sliver 9 is connected to the sidewall of the open circular surface at the upper end of the winding sliver 24 via a third connecting bearing. The inner surface of the winding sliver 24 remains smooth. A support disk 19 is provided inside the winding slab 24. The support disk 19 has a circular structure and is fixedly connected to the inner side of the lower end of the winding slab 24, thereby realizing the connection between the support disk 19 and the winding slab 24. A first embedding groove 16 and a second embedding groove 17 with identical structures are formed on the inner side of the winding slab 24 located above the support disk 19. The first embedding groove 16 and the second embedding groove 17 are arranged along the height direction of the inner side of the winding slab 24. The horizontal line connecting the 7 slots passes through the center of the winding drum 24. A feeding disc 13 is positioned above the support disc 19. The feeding disc 13 has a circular structure. On the side of the feeding disc 13 are a first insert pin 14 and a second insert pin 15 with identical structures. The horizontal line connecting the first insert pin 14 and the second insert pin 15 passes through the center of the feeding disc 13. The geometry of the first insert pin 14 and the second insert pin 15 is the same as the geometry of the first insert groove 16 and the second insert groove 17. The feeding disc 13 is positioned on the winding drum. The first embedding pin 14 is fully embedded in the first embedding groove 16 and the second embedding pin 15 is fully embedded in the second embedding groove 17. A connecting spring 18 is provided between the feeding disc 13 and the support disc 19. The upper end of the connecting spring 18 is fixedly connected to the lower side of the feeding disc 13 and the lower end of the connecting spring 18 is fixedly connected to the upper side of the support disc 19. When the support disc 19 compresses the connecting spring 18 under its own weight, the feeding disc 13 and the upper port of the winding drum 24 remain horizontal.

[0027] The chassis is set in a pit, which is a cylindrical shape with a certain depth. The chassis includes a fixed base 20, which is a circular plate. The fixed base 20 is fixedly set in the pit. A passive rotation embedding groove is set along the outer circumference of the upper side of the fixed plate. The upper side of the passive rotation embedding groove is horizontal with the upper side of the fixed plate. A certain distance is maintained between the bottom of the passive rotation embedding groove and the lower side of the fixed plate. A ball bearing is set in the passive rotation embedding groove. The diameter of the ball bearing is smaller than the height of the passive rotation embedding groove. The ball bearing is arranged at a certain arc interval in the passive rotation embedding groove. The arc length of the interval between two adjacent ball bearings in the passive rotation embedding groove is smaller than the radius of the ball bearing. A rotation driving ring 23 is set in the passive rotation embedding groove above the ball bearing. The rotation driving ring 23 is a circular ring structure with a certain thickness. The thickness of the rotation driving ring 23 is smaller than the width of the rotation embedding groove. The height of the rotation driving ring 23 is greater than the height of the fixed plate. A passive rotation driving ring 23 is set along the lower end of the circular ring. An active rotation embedding groove is opened in the circumferential direction. The lower end of the rotating drive ring 23 is embedded in the passive rotation embedding groove. At this time, the active rotation embedding groove of the rotating drive ring 23 presses on the ball, thereby realizing the connection between the rotating drive ring 23 and the fixed disk. At this time, the ball is embedded in the active rotation embedding groove of the rotating drive ring 23 and the passive rotation embedding groove of the fixed disk respectively. The upper end of the rotating drive ring 23 extends out of the passive rotation embedding groove of the fixed disk. A strip tube 6 embedding groove is opened along the circumferential direction of the upper end of the rotating drive ring 23. The width of the strip tube 6 embedding groove is greater than the thickness of the wall of the winding strip tube 24. The outer diameter of the rotating drive ring 23 is greater than the outer diameter of the winding strip tube 6. A fourth drive groove is opened along the circumference of the side of the part of the rotating drive ring 23 that extends out of the passive rotation embedding groove of the fixed disk. The rotating drive ring 23 is driven to rotate by the third motor 22 through the fourth belt 21. The fourth belt 21 has a ring structure. After the fourth belt 21 passes around the fourth drive groove of the rotating drive ring 23, it is driven to rotate by the third motor 22.

[0028] In use, the selected sliver 6 with radius R is first placed on the chassis. During this process, the side wall of the winding sliver 24 located below the support plate 19 is embedded in the sliver 6 embedding groove of the rotating drive ring 23, thereby realizing the installation of the sliver 6 on the chassis. The center of the installed sliver 6 is not on the same vertical line as the center of the coiling disc 1. The distance l1 between the two corresponding mapping points after the center of the installed sliver 6 and the center of the coiling disc 1 are perpendicularly mapped to the same plane determines the size of the air hole formed after the fiber sliver is coiled in the winding sliver 24.

[0029] The fiber sliver output from the drafting system of the drawing frame passes sequentially through the fiber inlet and fiber outlet of the coiling disc 1 and enters the coiling disc 1. It is then output from the fiber outlet 4 at the desired location. Let l2 be the distance between the selected fiber outlet 4 and the center of the coiling disc 1, then l1 + l2 = R. During operation, the coiling disc 1 is driven to rotate by the first motor 3 via the first belt 2. The second motor 12 drives the upper pre-twisted sliver can 7 to rotate via the second belt 10. Simultaneously, the second motor 12 drives the lower twisting sliver can 9 to rotate at the same speed and in the same direction as the upper pre-twisted sliver can 7 via the third belt 11. The third motor 22 drives the ring 23 to rotate via the fourth belt 21, which in turn drives the ring 23 to rotate. The winding drum 24 rotates synchronously, which in turn drives the unwinding disc 13, which is embedded and connected to the winding drum 24, to rotate synchronously. The rotation speeds of the upper pre-twist drum 7 and the lower twisting drum 9 are greater than the rotation speed of the coiling disc 1, which in turn is greater than the rotation speed of the rotating drive ring 23. The rotation of the coiling disc 1 then drives the fiber sliver entering through the fiber inlet 5 and exiting through the fiber outlet 4 to rotate synchronously. During this rotation, the fiber sliver is output from the coiling disc 1, and the output fiber sliver generates centrifugal force as it is thrown outwards by the rotation of the coiling disc 1. This causes the fiber sliver output from the coiling disc 1 to be thrown upwards towards the pre-twist drum 7, thus causing one side of the fiber sliver to be subjected to a certain force against the upper... The inner wall of the pre-twisted sliver can 7 is in contact with the fiber sliver. The contact point between the fiber sliver and the upper pre-twisted sliver can 7 constitutes the pre-twisting point. This causes the high-speed rotating upper pre-twisted sliver can 7 to generate a frictional force on the fiber sliver at the pre-twisting point. Under the action of friction, the fibers in the fiber sliver are driven to pre-twistwist along the axial direction of the fiber sliver, thus generating a pre-twisting effect on the fiber sliver at the pre-twisting point. The pre-twisted fiber sliver quickly falls into the middle untwisting sliver can 8. Due to the high-speed rotation of the upper pre-twisted sliver can 7 and the diameter setting of the upper pre-twisted sliver can 7, the pre-twisting points of the fiber sliver are only distributed within a semi-circular arc along the axial circumference. The fiber sliver falling into the middle untwisting sliver can 8 is freed from the frictional force of the upper pre-twisting sliver can 6, thus causing the fiber sliver to undergo a corresponding untwisting effect at the pre-twisting point. Under the twisting action, on the one hand, the fibers at the pre-twist point of the fiber sliver undergo axial untwist rotation, and the direction of untwist rotation is opposite to the direction of pre-twist rotation. On the other hand, the fiber sliver undergoes axial rotation as a whole during the untwist process. Under the overall rotation of the fiber sliver, the pre-twist point flips from the side of the fiber sliver close to the upper pre-twist canister 7 to the side opposite to the pre-twist canister 6. During the untwist process, the fiber sliver falls rapidly into the lower twisting canister 9. Due to the centrifugal force that has not completely disappeared, one side of the fiber sliver contacts the inner wall of the lower twisting canister 9 with a certain force. The contact point between the fiber sliver and the lower twisting canister 9 constitutes the twisting point, and the twisting points of the fiber sliver are only distributed in another semi-circular arc along the axial circumference.This results in the pre-twisting point and the twisting point being distributed along the axial direction of the fiber sliver and not completely overlapping. The high-speed rotating lower twisting cylinder 9 generates frictional force on the fiber sliver at the twisting point. Under the action of friction, the fibers within the fiber sliver twist and rotate along the axial direction of the fiber sliver. This twisting rotation occurs in the opposite direction to the untwisting rotation, causing the twisting fibers to intertwine with the fibers still undergoing untwisting. During this intertwining process, the fiber sliver acquires twist, thus achieving the desired twisting effect. The twisting process produces a twisted fiber sliver. This twisted fiber sliver rapidly falls into the winding drum 24. Under the coordinated rotation control of the coiling disc 1 and the unwinding disc 13 within the winding drum 24, the twisted fiber sliver continuously winds onto the unwinding disc 13. As more fiber sliver winds onto the unwinding disc 13, the pressure on the unwinding disc 13 increases, consequently increasing the pressure on the connecting spring 18 connected to the unwinding disc 13. This causes the unwinding disc 13 to descend along the height of the winding drum 24, ensuring that the fiber sliver is always wound onto the unwinding disc 13 at the upper end of the winding drum 24.

[0030] Acrylic / modal / nylon slivers are directly spun into acrylic / modal / nylon blended bobbins, with the spinning process using a ring spinning machine. Acrylic / modal / nylon blended bobbins are wound into large packages with reduced yarn defects to produce acrylic / modal / nylon blended cone yarns.

[0031] Step 3: Fabric Preparation Acrylic / modal / nylon blended yarns are warped and sizing to obtain the warp yarns needed for weaving. The acrylic / modal / nylon blended yarns are then used directly as weft yarns. The warp and weft yarns are woven together to produce high-grade antibacterial and health-promoting fabrics, using an air-jet loom. The fabrics are then desized, heat-set, softened, and treated with antistatic agents to obtain the desired high-grade antibacterial material. An example is the production of a compact acrylic / modal / nylon blended yarn with a linear density of 9.84 tex and a blend ratio of 40 / 40 / 20, along with the corresponding high-grade antibacterial fabric.

[0032] (1) Raw material selection The fiber used is anti-pilling acrylic fiber with a specification of 1.11dtex×38mm, modal fiber with a specification of 1.33dtex×38mm and an organic antibacterial nylon fiber with a specification of 1.67dtex×38mm.

[0033] (2) Process flow Acrylic fiber: FA002 automatic cotton picker → FA016A blending and opening machine with A045B cotton condenser → FA022-6 multi-bin blending machine → FA106B carding opener with A045B cotton condenser → FA046A vibrating feeder with A045B cotton condenser → A07F single beater lap machine → FA201B carding machine → FA317A pre-drawing frame.

[0034] Modal / Nylon Fiber: FA002 Automatic Cotton Picker → FA016A Mixer with A045B Cotton Condenser → FA022-6 Multi-Branch Mixer → FA106B Carding Opener with A045B Cotton Condenser → FA046A Vibrating Feeder with A045B Cotton Condenser → A07F Single Beater Lap Former → FA201B Carding Machine → FA317A Pre-Drawing Frame.

[0035] Acrylic / Modal / Nylon Fibers: FA317A drawing frame → FA317A drawing frame → FA317A drawing frame → EJM128K spinning frame with mesh rings for compact spinning → No.21C automatic winding machine.

[0036] High-end antibacterial fabric: Warp yarn: DSB50 warping machine → Prosize sizing machine Weaving: JAT810 air-jet loom (3) Key processes Raw material pretreatment: Acrylic, Modal, and nylon raw materials are transported to the preparation bagging room for pretreatment. The temperature in the preparation bagging room is controlled at 30±2℃ and the relative humidity is controlled at 70±5%, and the materials are left for at least 24 hours. The moisture regain of acrylic, Modal, and nylon is measured to be 1.6%, 10.9%, and 4.2%, respectively. The weight of Modal and nylon is calculated according to the dry weight ratio of 66.67:33.33. After weighing and mixing, the raw materials are bagged and arranged. After pretreatment, acrylic is bagged. During production, appropriate humidification is carried out on the bagging table of the FA002 automatic cotton grabber.

[0037] Cleaning: Each individual machine should have a closed impurity zone to improve yield. The beater speed of each individual machine should be gentle, and the spacing between parts should be reasonably controlled to minimize fiber damage. The beater speed of the FA002 automatic cotton picker should be 680 r / min, the beater speed of the FA106B carding opener should be 480 r / min, and the beater speed of the A07F single beater lap machine should be 80 r / min. At the same time, the negative pressure of the dust filter unit should be appropriately increased to ensure smooth fiber flow. The operating efficiency of the FA002 automatic cotton picker should be controlled above 95%. The frequency of the fan oscillation of the FA016A blending opener should be increased, and the cotton box pressure of the FA022-6 multi-bin blending machine should be controlled to a higher level. The position of the photoelectric switch of the cotton box of the FA046A vibrating cotton feeder should be adjusted to the highest position to increase the cotton box storage capacity.

[0038] Carding: To improve fiber sorting and transfer efficiency and protect fibers from damage, the carding gap is appropriately increased, and the carding speed of each carding element is reduced; the licker-in speed is controlled at 770 r / min, the cylinder speed at 330 r / min, and the flats speed at 12.7 mm / min; the gap between the licker-in and the feed plate is appropriately increased to 18-22 filaments, the gap of the fixed back flats is set to 16×14×12 filaments, the gap of the movable flats is 9×8×8×8×9 filaments, and the gap of the fixed front flats is 9×8×7 filaments; temperature and humidity are strictly controlled at 28±3℃ and 60±3%.

[0039] Pre-drawing: 6 strands are drawn together, with a drafting interval of 11×25mm, and a drafting ratio of 1.88 in the back zone; the theoretical basis weight of modal / nylon pre-drawing is 14.59g / 5m, and the theoretical basis weight of acrylic pre-drawing is 18.50g / 5m. The error is controlled within ±0.25 g / 5m during production, and the pressure applied by the rubber roller is 310×360×360cN.

[0040] Mixed drawing: In the first mixed drawing, a 4-modal / nylon mixed sliver and a 2-acrylic sliver are combined in the order of "mixed sliver / acrylic / mixed sliver / mixed sliver / acrylic / mixed sliver". The rollers are treated with AB anti-snagging agent, and the drafting interval is set to 11×25mm to produce an acrylic / modal / nylon sliver with a basis weight of 15g / 5m. In the second drawing, 6 acrylic / modal / nylon slivers are fed together, and the drafting interval is set to 11×25mm to produce an acrylic / modal / nylon semi-cooked sliver with a basis weight of 13g / 5m. In the third drawing, 6 acrylic / modal / nylon semi-cooked slivers are fed together, and the drafting interval is set to 10×23mm with a total draft of 12 times to produce an acrylic / modal / nylon cooked sliver with a basis weight of 6.5g / 5m.

[0041] Fine yarn: The draft ratio in the back zone of the fine yarn is appropriately reduced to 1.14 times to decrease the dispersion of the fiber speed change point; the draft spacing is 17.5×70±0.08mm, and a standard 2.25 nip spacing block is used with an additional back pressure bar to stabilize the control of floating fibers; the ring bar is Pg1 38 / 54, and the traveler is EL1 10 / 0; the diameter of the front roller is slightly larger than normal and not less than 32mm; the twist coefficient is set to 340.

[0042] Winding: The process adopts the concept of "low speed, low tension, less friction, key isolation and protection, and reasonable optimization of yarn clearing parameters"; the speed is 1000m / min.

[0043] Warping: Tension zone control: divided into front, middle and back zones, with tension gradients of 12 / 10 / 8cN; Static elimination: ion bar installed to reduce static electricity from nylon / acrylic friction.

[0044] Sizing: Sizing formula: PVA (40%) + acrylate (30%) + starch (30%), sizing rate 8-10%; Drying temperature: layered control, first drying chamber 110℃, second drying chamber 90℃, to avoid modal embrittlement.

[0045] Weaving: Loom speed 600-700rpm. Machine parameters: warp tension: 1800-2200N; shedding time: 290°-300°; weft insertion pressure: 0.45-0.55MPa.

[0046] Desizing: Biological enzymatic desizing using amylase and protease at 50℃ and pH 6.5-7.0.

[0047] Heat setting: Temperature control, acrylic fiber sensitive, temperature ≤130℃, time 30 seconds.

[0048] Softening finish: 3-5% amino silicone oil emulsion to improve the feel of modal / acrylic fibers.

[0049] Antistatic treatment: Uses durable antistatic agents based on polyether esters to improve wearability.

[0050] (4) Quality testing and analysis yarn quality: To conduct a comparative analysis, the traditional blending and drawing process, which includes a roving process, was used for the corresponding spinning process, and the yarn quality was tested.

[0051]

[0052] As can be seen from the yarn quality test results, compared with the traditional spinning method, the yarn quality of this patent is comparable, and because this patent omits the roving process, the spinning efficiency is greatly improved.

[0053] The antibacterial properties of the fabric were tested, and the results are as follows:

[0054] The above description, based on the embodiments shown in the figures, details the structure, features, and effects of the present invention. The above description is only a preferred embodiment of the present invention, but the present invention is not limited to the scope of implementation shown in the figures. Any changes made in accordance with the concept of the present invention, or equivalent embodiments modified to have equivalent changes, that do not exceed the spirit covered by the specification and figures, should be within the protection scope of the present invention.

Claims

1. A method for producing an antibacterial fabric, characterized in that, Includes the following steps: Step 1: Fibers into strips Acrylic fiber, modal fiber, and organic antibacterial nylon fiber are pretreated separately; modal fiber and nylon fiber are weighed and mixed, and then repackaged to obtain modal / nylon blended packages with the required mixing ratio; the blended packages and acrylic fiber are respectively opened and cleaned into rolls, carded into slivers, and pre-combined and finished to obtain modal / nylon slivers and acrylic fiber slivers required for the blend. Step 2: Blending into yarn Acrylic / modal / nylon slivers of 6-8 strands are mixed with modal / nylon slivers in the required ratio and then processed into acrylic / modal / nylon slivers through a first drawing process. These slivers are then processed into semi-finished acrylic / modal / nylon slivers with a weight of less than 20g / 5m through a second drawing process. Finally, a finished acrylic / modal / nylon sliver with a weight of less than 10g / 5m through a third drawing process is obtained. The second and third drawing processes are performed using a drawing frame equipped with an intelligent twisting and winding system for fiber slivers, consisting of a coiling device and a sliver holding device. The finished acrylic / modal / nylon slivers are then spun into acrylic / modal / nylon blended yarn tubes, which are then wound into cone yarns. The coiling device includes a coiling disc with a fiber inlet and outlet, and is driven by a first motor via a first belt. The sliver holding device includes a sliver can consisting of a twisting sliver can and a winding sliver can, and a base. The twisting sliver can includes an upper pre-twist sliver can, a middle untwist sliver can, and a lower twisting sliver can, whose diameters gradually increase from top to bottom and are connected to each other by bearings. The inner surfaces of the upper pre-twist sliver can and the lower twisting sliver can are provided with friction coatings, and both are driven to rotate synchronously by a second motor via a second and a third belt, respectively. The winding sliver can is located below the lower twisting sliver can, and a support plate is fixedly installed at its lower end, while a sliver feeding plate is slidably installed thereon, and the two are connected by a connecting spring. The base includes a fixed base, on which a rotating drive ring driven by a third motor via a fourth belt is rotatably connected, and a sliver can embedding groove is opened at its upper end. The fiber sliver ejected by the coiling disc comes into frictional contact with the high-speed rotating upper pre-twisting sliver, which pre-twists the fiber sliver. Then, it rotates and untwises through the stationary middle untwisting sliver. The untwisted fiber sliver is then frictionally twisted through the high-speed rotating lower twisting sliver. This causes the fibers in the frictionally twisted fiber sliver to become entangled with the untwisted fibers during the transfer, thus achieving fiber sliver twisting. Step 3: Fabric Preparation Acrylic / modal / nylon blended yarns are warped and sized to produce warp yarns, which are then used directly as weft yarns. The warp and weft yarns are woven together to produce high-grade antibacterial and health-care fabrics. After desizing, heat setting, softening and antistatic finishing, high-grade antibacterial fabrics are produced.

2. The method for producing an antibacterial fabric according to claim 1, characterized in that: The coiling disc is a hollow, closed cylinder. A coiling disc connection port, circular in structure, is located at the center of its upper side. A connecting bearing is embedded within this port, with its lower side level with the lower edge of the upper side of the coiling disc. The upper side of the bearing extends beyond the upper edge of the coiling disc. The connecting bearing has a hollow center, with a smooth inner surface forming the lower inlet for the fiber sliver. The upper side of the connecting bearing is fixedly connected to the coiling connecting arm of the drawing frame, at the end point of which a fiber inlet is located. The upper and lower fiber inlets are aligned vertically to form the fiber inlet. A fiber outlet is located on the lower side of the coiling disc. The fiber outlets are circular, with 3-8 outlets in total. All fiber outlets are located on the same straight line, and the line connecting them passes through the center of the lower side of the coiling disc. The innermost fiber outlet maintains a certain distance from the center of the lower side of the coiling disc. All fiber outlets are arranged at equal intervals. A first drive groove is formed along the circumference of the side of the coiling disc. The coiling disc is driven to rotate by a first motor via a first belt. The first belt is annular and rotates after passing through the first drive groove of the coiling disc.

3. The method for producing an antibacterial fabric according to claim 1, characterized in that: The upper pre-twist can, middle untwist can, and lower twist can are all hollow, variable-diameter cylinders with open upper and lower ends. The diameter of the upper pre-twist can gradually increases from the upper end to the lower end. The diameter of the middle untwist can also gradually increase from the upper end to the lower end, with the upper end diameter of the middle untwist can being the same as the lower end diameter of the upper pre-twist can. Similarly, the diameter of the lower twist can also gradually increase from the upper end to the lower end, with the upper end diameter of the lower twist can being the same as the lower end diameter of the middle untwist can. The upper pre-twist can and the lower twist can have the same height, while the height of the middle untwist can is less than that of the upper pre-twist can. The heights of the twisting drum and the lower twisting drum are as follows: the side wall of the open circular surface at the lower end of the upper pre-twist drum is connected to the side wall of the open circular surface at the upper end of the middle untwist drum via a first connecting bearing; the side wall of the open circular surface at the upper end of the lower twisting drum is connected to the side wall of the open circular surface at the lower end of the middle untwist drum via a second connecting bearing; a second driving groove is formed along the circumferential direction of the side of the upper pre-twist drum; a third driving groove is formed along the circumferential direction of the side of the lower twisting drum; the upper pre-twist drum is driven to rotate by a second motor via a second belt; and the lower twisting drum is driven to rotate by a second motor via a third belt.

4. The method for producing an antibacterial fabric according to claim 1, characterized in that: The inner surfaces of the upper pre-twist sliver can and the lower twist sliver can are provided with the same friction coating, which gives the inner surfaces of the upper pre-twist sliver can and the lower twist sliver can a certain friction force, while the inner surface of the middle untwist sliver can remains smooth.

5. The method for producing an antibacterial fabric according to claim 1, characterized in that: The winding sliver is a hollow cylinder with an open top and bottom, and its diameter remains constant. The diameter of the winding sliver is the same as the diameter of the lower end of the lower twisting sliver. The height of the winding sliver is more than 10 times the height of the upper pre-twist sliver and the lower twisting sliver. The side wall of the open circular surface at the lower end of the lower twisting sliver is connected to the side wall of the open circular surface at the upper end of the winding sliver by a third connecting bearing. The inner surface of the winding sliver remains smooth.

6. The method for producing an antibacterial fabric according to claim 1, characterized in that: A support plate, circular in structure, is provided inside the winding sliver. The support plate is fixedly connected to the inner side of the lower end of the winding sliver. On the inner side of the winding sliver above the support plate, there are identical first and second embedding grooves. The first and second embedding grooves are arranged along the height direction of the inner side of the winding sliver, and the horizontal line connecting the first and second embedding grooves passes through the center of the winding sliver. Above the support plate, there is a feeding plate, circular in structure. On the side of the feeding plate, there are identical first and second embedding pins. The first and second embedding pins... The horizontal line connecting the two passes through the center of the feeding disc. The geometry of the first and second insert pins is the same as that of the first and second insert grooves. The feeding disc is set inside the winding drum, and the first insert pin is fully embedded in the first insert groove and the second insert pin is fully embedded in the second insert groove. A connecting spring is provided between the feeding disc and the support disc. The upper end of the connecting spring is fixedly connected to the lower side of the feeding disc, and the lower end of the connecting spring is fixedly connected to the upper side of the support disc. When the support disc compresses the connecting spring under its own weight, the feeding disc and the upper end of the winding drum remain horizontal.

7. The method for producing an antibacterial fabric according to claim 1, characterized in that: The chassis is set in a pit, which is a cylindrical shape with a certain depth. The chassis includes a fixed base plate, which is a circular plate. The fixed base plate is fixedly set in the pit. A passive rotation embedding groove is set along the outer circumference of the upper side of the fixed plate. The upper side of the passive rotation embedding groove is level with the upper side of the fixed plate. A certain distance is maintained between the bottom of the passive rotation embedding groove and the lower side of the fixed plate. A ball bearing is set in the passive rotation embedding groove. The diameter of the ball bearing is smaller than the height of the passive rotation embedding groove. The ball bearing is arranged at a certain arc interval in the passive rotation embedding groove. The arc length of the interval between two adjacent ball bearings in the passive rotation embedding groove is smaller than the radius of the ball bearing. A rotation driving ring is set in the passive rotation embedding groove located above the ball bearing.

8. The method for producing an antibacterial fabric according to claim 7, characterized in that: The rotating drive ring is a circular ring structure with a certain thickness. The thickness of the rotating drive ring is less than the width of the rotating embedding groove, and the height of the rotating drive ring is greater than the height of the fixed disk. An active rotating embedding groove is opened along the circumferential direction of the lower end of the rotating drive ring. The lower end of the rotating drive ring is embedded in the passive rotating embedding groove. At this time, the active rotating embedding groove of the rotating drive ring presses on the ball, and the ball is embedded in the active rotating embedding groove of the rotating drive ring and the passive rotating embedding groove of the fixed disk. The upper end of the rotating drive ring extends out of the passive rotating embedding groove of the fixed disk. A strip embedding groove is opened along the circumferential direction of the upper end of the rotating drive ring. The width of the strip embedding groove is greater than the thickness of the wall of the wound strip. The outer diameter of the rotating drive ring is greater than the outer diameter of the wound strip. A fourth drive groove is opened along the circumference of the side of the part of the rotating drive ring that extends out of the passive rotating embedding groove of the fixed disk. The rotating drive ring is driven to rotate by a third motor through a fourth belt. The fourth belt is a ring structure. After the fourth belt passes around the fourth drive groove of the rotating drive ring, it is driven to rotate by the third motor.

9. The method for producing an antibacterial fabric according to claim 1, characterized in that: The rotational speed of the upper pre-twisting drum and the lower twisting drum is greater than the rotational speed of the coiling disc, and the rotational speed of the coiling disc is greater than the rotational speed of the rotating drive ring.

10. The method for producing an antibacterial fabric according to claim 1, characterized in that: The rotation of the coiling disc then drives the fiber sliver entering through the fiber inlet and exiting through the fiber outlet to rotate synchronously. During the rotation, the fiber sliver is output from the coiling disc, and the output fiber sliver generates centrifugal force as it is thrown outward by the rotation of the coiling disc. This causes the fiber sliver output from the coiling disc to be thrown upward into the pre-twisting can, so that one side of the fiber sliver contacts the inner wall of the upper pre-twisting can with a certain force. The contact point between the fiber sliver and the upper pre-twisting can constitutes the pre-twisting point. The high-speed rotating upper pre-twisting can generates a frictional force on the fiber sliver at the pre-twisting point. Under the action of friction, the fibers in the fiber sliver are pre-twisted along the axial direction of the fiber sliver, thus producing a pre-twisting effect on the fiber sliver at the pre-twisting point. The pre-twisted fiber sliver falls rapidly into the middle untwisting can. Due to the high-speed rotation of the upper pre-twisting can and the diameter setting of the upper pre-twisting can, the pre-twisting points of the fiber sliver are only distributed within a semi-circular arc along the axial circumference. As the fiber sliver falls into the middle untwisting can, it is freed from the frictional force of the upper pre-twisting can, causing the fiber sliver to undergo a corresponding untwisting action at the pre-twisting point. Under the untwisting action, on the one hand, the fiber at the pre-twisting point of the fiber sliver undergoes untwisting rotation along the axial direction, and the direction of untwisting rotation is opposite to the direction of pre-twisting rotation. On the other hand, the fiber sliver undergoes an overall axial rotation during the untwisting process. Under the overall rotation of the fiber sliver, the pre-twisting point is flipped from the side of the fiber sliver that is close to the upper pre-twisting can to the side that is opposite to the pre-twisting can. During the untwisting process, the fiber sliver falls rapidly into the lower twisting can. Due to the centrifugal force that has not completely dissipated, one side of the fiber sliver contacts the inner wall of the lower twisting can with a certain force. The contact point between the fiber sliver and the lower twisting can constitutes the twisting point. The twisting points of the fiber sliver are only distributed in another semi-circular arc along the axial circumference, so that the pre-twisting point and the twisting point are distributed along the axial direction of the fiber sliver and do not completely coincide. The high-speed rotating lower twisting can generates a frictional force on the fiber sliver at the twisting point. Under the action of friction, the fibers in the fiber sliver are driven to twist and rotate along the axial direction of the fiber sliver. Under the action of twisting rotation, the fibers in the fiber sliver twist and rotate along the axial direction of the fiber sliver at the twisting point. The direction of the fiber twisting rotation is opposite to the direction of the fiber untwisting rotation, so that the twisting and rotating fibers and the fibers that are still untwisting rotate with each other. During the fiber entanglement process, the fiber sliver acquires twist.

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