Environment-friendly high-antibacterial polylactic acid fiber production equipment and production process thereof

Abstract

The invention provides environment-friendly high-antibacterial polylactic acid fiber production equipment and a production process thereof, and relates to the technical field of polylactic acid fiber production and processing.The environment-friendly high-antibacterial polylactic acid fiber production equipment comprises a box body, and the interior of the box body is divided into a fiber transition chamber and an oil chamber used for storing oil through a partition plate; an S-shaped roller set is arranged in the oil chamber and used for conveying the environment-friendly high-antibacterial polylactic acid fiber yarn in the oil in the oil chamber in an S shape; a distance adjusting mechanism is installed on the front side of the box body and used for adjusting the distance between the highest point and the lowest point of the S-shaped roller set. A V-shaped roller set is arranged in the fiber transition chamber and used for conveying the environment-friendly high-antibacterial polylactic acid fiber yarn soaked with the oil in a V shape, and the oil is gathered and dripped at the lowest point. By means of the device, oil liquid smeared on the environment-friendly high-antibacterial polylactic acid fiber yarn is more uniform and sufficient, and therefore the undesirable phenomena that burrs, static electricity and the like are generated due to uneven oiling in the follow-up traction movement of the environment-friendly high-antibacterial polylactic acid fiber yarn are avoided.

Description

Technical Field

[0001] This invention relates to the field of polylactic acid fiber production and processing technology, and more specifically, to an environmentally friendly, highly antibacterial polylactic acid fiber production equipment and its production process. Background Technology

[0002] Environmentally friendly, high-antibacterial polylactic acid fiber is a new type of bio-based fiber material that combines the environmentally friendly properties of polylactic acid fiber with its highly efficient antibacterial function. It uses renewable resources as raw materials and, while possessing biodegradable properties, can effectively inhibit the growth and reproduction of bacteria and other microorganisms. It is a textile material that combines eco-friendliness and functionality.

[0003] Currently, in the production and processing of environmentally friendly and antibacterial polylactic acid (PLA) fibers, oiling is performed on the PLA fiber yarn. The commonly used oiling method is simply to use a spray nozzle with a sponge to spray the oil. This can result in uneven oiling, which can lead to problems such as rough edges and static electricity during subsequent pulling and moving of the PLA fiber yarn. Summary of the Invention

[0004] This invention aims to solve the problem of uneven oiling of environmentally friendly, high-antibacterial polylactic acid fiber yarn, which causes problems such as burrs and static electricity during subsequent pulling and movement.

[0005] To address the above problems, the present invention provides an environmentally friendly, high-antibacterial polylactic acid fiber production equipment, comprising a housing, wherein the housing is divided by a partition plate into a fiber transition chamber and an oil chamber for storing oil. The oil chamber is equipped with an "S"-shaped roller group, which is used to transport environmentally friendly high antibacterial polylactic acid fiber yarn in the oil in the oil chamber in an "S" shape. The front side of the housing is equipped with an adjustment mechanism, which is used to adjust the distance between the highest and lowest points of the "S" shaped roller group; The fiber transition chamber is equipped with a "V"-shaped roller group, which is used to transport the environmentally friendly, high-antibacterial polylactic acid fiber yarn that has been soaked in oil in a "V" shape, forming oil droplets at the lowest point.

[0006] The present invention provides an environmentally friendly, high-antibacterial polylactic acid fiber production equipment, which, compared with the prior art, has, but is not limited to, the following beneficial effects: This environmentally friendly, high-antibacterial polylactic acid (PLA) fiber production equipment separates a fiber transition chamber and an oil chamber within a housing using a partition plate. An "S"-shaped roller assembly is installed in the oil chamber, allowing the PLA fiber yarn to be conveyed in an "S" shape. Oil is then introduced into the oil chamber, ensuring it covers the top of the "S"-shaped roller assembly. This ensures the PLA fiber yarn is fully immersed in oil during the "S"-shaped conveying process. The distance between the highest and lowest points of the "S"-shaped conveying line can be adjusted using a distance adjustment mechanism, facilitating control over the immersion time. This prevents excessive immersion, which could lead to excess oil adhering to the PLA fiber yarn. Insufficient oil immersion time leads to inadequate oiling of the environmentally friendly, high-antibacterial polylactic acid (PLA) fiber yarn. A "V"-shaped roller assembly then transports the oil-immersed PLA fiber yarn in a fiber transition chamber via a "V"-shaped conveyor. At the lowest point of the "V"-shaped roller assembly, excess oil on the PLA fiber yarn flows down the yarn under gravity and drips away. This process ensures a smoother and more even application of oil during the fiber transition chamber, preventing uneven oiling that could cause burrs or static electricity during subsequent pulling and movement of the PLA fiber yarn.

[0007] Furthermore, the “S”-shaped roller assembly includes multiple high guide rollers and multiple low guide rollers constituting the “S” conveyor line. Each low guide roller is located between two adjacent high guide rollers, and one end of the high guide roller is rotatably connected to the front sidewall of the oil chamber. The pitch adjustment mechanism is connected to one end of the multiple low guide rollers.

[0008] Furthermore, the adjusting mechanism includes a transmission rod and multiple support frames. A support plate fixedly connected to the housing is rotatably connected to the transmission rod. A limit pin is threadedly connected to the top of one of the support plates. The bottom end of the limit pin abuts against the outer wall of the transmission rod. A crank is provided at one end of the transmission rod. One end of each of the multiple low guide rollers is rotatably connected to the ends of the multiple support frames that extend into the oil chamber. A transmission lifting component connected to the transmission rod is provided on the front side of each support frame. When the transmission rod rotates, it is used to drive the multiple support frames to move up and down together on the housing.

[0009] Furthermore, the transmission lifting component includes a main bevel gear and a lifting screw. The bottom end of the lifting screw is fixedly connected to a driven bevel gear that meshes with the main bevel gear. A lifting seat is threaded onto the lifting screw. The lifting seat is fixedly connected to the support frame. A bearing seat that is fixedly connected to the housing is rotatably connected to the lifting screw, and the bearing seat is located below the lifting seat.

[0010] Furthermore, the “V”-shaped roller assembly includes three guide rollers constituting the “V” conveyor line, namely a first guide roller, a second guide roller, and a third guide roller. The first guide roller is rotatably mounted on the top left side of the housing. One end of the second guide roller is rotatably connected to the front side wall of the fiber transition chamber. The third guide roller is rotatably mounted on the top of the partition plate. A fourth guide roller that cooperates with the “S”-shaped roller assembly is rotatably mounted on the top right side of the housing.

[0011] Furthermore, the top of the box body is provided with a box cover, the rear side of the box cover is rotatably connected to the box body, and cylinders are rotatably connected to both the front and rear sides of the box body. The telescopic ends of the cylinders are rotatably connected to the corresponding sides of the box cover. Limiting rollers that cooperate with the first guide roller and the fourth guide roller are respectively rotatably installed on the left and right sides of the bottom of the box cover.

[0012] Furthermore, a wiping structure is provided at the output end of the "V"-shaped roller group, which is used to wipe away excess oil adhering to the environmentally friendly high antibacterial polylactic acid fiber yarn. The wiping structure includes two base plates that are detachably connected to the housing, and a sponge is installed on the side of the two base plates that are close to each other.

[0013] Furthermore, the oil chamber is provided with an auxiliary support that cooperates with the other end of the high guide roller and the low guide roller to provide auxiliary support for the high guide roller and the low guide roller.

[0014] Furthermore, the fiber transition chamber is provided with an auxiliary support II that cooperates with the other end of the second guide roller to provide auxiliary support for the second guide roller. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the environmentally friendly, high-antibacterial polylactic acid fiber production equipment according to an embodiment of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the environmentally friendly, high-antibacterial polylactic acid fiber production equipment according to an embodiment of the present invention. Figure 2 ; Figure 3 For the present invention Figure 2 Front view; Figure 4 For the present invention Figure 2 Front sectional view; Figure 5 Embodiments of the present invention Figure 4 A schematic diagram of the usage status structure; Figure 6 For the present invention Figure 2 The left view; Figure 7 For the present invention Figure 6 Another usage state structure diagram; Figure 8 This is a schematic diagram of the adjusting mechanism according to an embodiment of the present invention. Figure 1 ; Figure 9 This is a schematic diagram of the adjusting mechanism according to an embodiment of the present invention. Figure 2 ; Figure 10 This is a schematic diagram of the auxiliary support structure according to an embodiment of the present invention; Figure 11 This is a schematic diagram of the connection structure between the bushing and the plate frame according to an embodiment of the present invention; Figure 12 This is a schematic diagram of the connection structure between the sliding guide head and the plate frame according to an embodiment of the present invention; Figure 13 This is a schematic diagram of the auxiliary support two in an embodiment of the present invention.

[0016] Explanation of reference numerals in the attached figures: 1. Housing; 2. Divider plate; 3. Fiber transition chamber; 4. Oil chamber; 5. "S" shaped roller assembly; 501. High guide roller; 502. Low guide roller; 6. Adjustment mechanism; 601. Transmission rod; 602. Support frame; 603. Support plate; 604. Limit pin; 605. Handle; 606. Transmission lifting component; 6061. Main bevel gear; 6062. Lifting screw; 6063. Driven bevel gear; 6064. Lifting seat; 6065. Bearing seat; 7. "V" shaped roller assembly; 701. First guide roller; 702. Second guide roller; 703. Third guide roller; 8. Auxiliary... Auxiliary support 1; 801, grating plate; 8011, grating channel; 802, plate frame; 803, sliding guide head; 804, bushing 1; 805, guide rail 1; 806, rib bar; 807, threaded post 1; 808, knurled knob 1; 9, Auxiliary support 2; 901, support rod; 902, slider seat; 903, bushing 2; 904, guide rail 2; 905, knurled post 2; 906, knurled knob 2; 10, box cover; 11, cylinder; 12, wiping structure; 1201, base plate; 1202, sponge; 13, fourth guide roller; 14, limiting roller; 15, drain pipe. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings showing multiple embodiments according to this application. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort will fall within the scope of protection of this application.

[0018] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terminology used in the description of this application is for the purpose of describing specific embodiments only and is not intended to limit the use of open-ended terms such as "comprising," "including," "having," "containing," etc., in the description, claims, and accompanying drawings. Therefore, "comprising," "including," or "having" refers to, for example, a method or apparatus having one or more steps or elements, but not limited to having only these one or more elements. The terms "first," "second," etc., in the description, claims, or accompanying drawings are used to distinguish different objects, not to describe a specific order or hierarchy. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0019] In the description of this invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0020] Furthermore, in the attached diagram, the X-axis represents the vertical direction, that is, the front-to-back position, and the positive direction of the X-axis (that is, the direction the arrow points to) represents the front, and the negative direction of the X-axis (that is, the direction opposite to the positive direction of the X-axis) represents the back. In the attached diagram, the Y-axis represents the horizontal direction, that is, the left-to-right position, and the positive direction of the Y-axis (that is, the direction the arrow points to) represents the left, and the negative direction of the Y-axis (that is, the direction opposite to the positive direction of the Y-axis) represents the right. In the attached diagram, the Z-axis represents the vertical direction, that is, the up-to-down position, and the positive direction of the Z-axis (that is, the direction the arrow points to) represents the up, and the negative direction of the Z-axis (that is, the direction opposite to the positive direction of the Z-axis) represents the down.

[0021] It should also be noted that the aforementioned X-axis, Y-axis and Z-axis are used only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can be a direct connection or an indirect connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] It should be emphasized that when the term "comprising / including" is used in this specification, it is used to explicitly indicate the presence of the stated feature, integer, step, or component, but does not exclude the presence or addition of one or more other features, integers, steps, parts, or groups of features, integers, steps, or parts.

[0024] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0025] See Figure 1 , Figure 4 and Figure 5 An environmentally friendly, high-antibacterial polylactic acid fiber production equipment according to an embodiment of the present invention includes a box 1, in which a fiber transition chamber 3 and an oil chamber 4 for storing oil are separated by a partition plate 2. The oil chamber 4 is equipped with an "S"-shaped roller group 5, which is used to transport the environmentally friendly high antibacterial polylactic acid fiber yarn in the oil in the oil chamber 4 in an "S" shape. An adjustment mechanism 6 is installed on the front side of the housing 1, which is used to adjust the distance between the highest and lowest points of the "S"-shaped roller group 5; The fiber transition chamber 3 is equipped with a "V" shaped roller group 7, which is used to transport the environmentally friendly, high antibacterial polylactic acid fiber yarn that has been soaked in oil in a "V" shape, forming oil droplets at the lowest point.

[0026] In this embodiment, the environmentally friendly, high-antibacterial polylactic acid fiber production equipment separates a fiber transition chamber 3 and an oil chamber 4 within a housing 1 using a partition plate 2. An "S"-shaped roller group 5 is installed in the oil chamber 4, allowing the environmentally friendly, high-antibacterial polylactic acid fiber yarn to be conveyed in an "S" shape within the oil chamber 4. Oil is then introduced into the oil chamber 4, ensuring it covers the top of the "S"-shaped roller group 5. This ensures the environmentally friendly, high-antibacterial polylactic acid fiber yarn is fully immersed in the oil during the "S"-shaped conveying process. The distance between the highest and lowest points of the "S"-shaped conveying line can be adjusted using a pitch adjustment mechanism 6, facilitating the adjustment of the oil immersion time. This allows for controllable oil immersion time, preventing excessive oil buildup that could cause excess fiber to adhere to the yarn. The oil application process avoids insufficient oiling of the environmentally friendly, high-antibacterial polylactic acid (PLA) fiber yarn due to short immersion time. The oil-soaked PLA fiber yarn is then transported in a "V" shape through the fiber transition chamber 3 via a "V" roller group 7. At the lowest point of the "V" roller group 7, excess oil on the PLA fiber yarn flows down the yarn under gravity and drips away. This process ensures a more even and thorough application of oil, preventing uneven oiling that could cause burrs or static electricity during subsequent pulling and movement of the PLA fiber yarn.

[0027] See Figure 1 , Figure 4 and Figure 5 Optionally, the "S"-shaped roller group 5 includes multiple high guide rollers 501 and multiple low guide rollers 502 constituting the "S" conveyor line. A single low guide roller 502 is located between two adjacent high guide rollers 501. One end of the high guide roller 501 is rotatably connected to the front side wall of the oil chamber 4. The pitch adjustment mechanism 6 is connected to one end of the multiple low guide rollers 502.

[0028] In this embodiment, multiple high guide rollers 501 and multiple low guide rollers 502 are arranged in an "S" shape in the oil, so that the environmentally friendly high antibacterial polylactic acid fiber yarn passes around each high guide roller 501 and low guide roller 502 in an "S" shape. This allows the environmentally friendly high antibacterial polylactic acid fiber yarn to be transported in the oil in an "S" shape, and the environmentally friendly high antibacterial polylactic acid fiber yarn has a certain transportation time in the oil, which facilitates the full oil immersion of the environmentally friendly high antibacterial polylactic acid fiber yarn.

[0029] See Figure 1 , Figure 3 and Figure 8Optionally, the adjusting mechanism 6 includes a transmission rod 601 and multiple support frames 602. A support plate 603 fixedly connected to the housing 1 is rotatably connected to the transmission rod 601. A limit pin 604 is threadedly connected to the top of one support plate 603. The bottom end of the limit pin 604 abuts against the outer wall of the transmission rod 601. A crank 605 is provided at one end of the transmission rod 601. One end of multiple low guide rollers 502 is rotatably connected to the ends of multiple support frames 602 that extend into the oil chamber 4. A transmission lifting component 606 connected to the transmission rod 601 is provided on the front side of each support frame 602. When the transmission rod 601 rotates, it is used to drive multiple support frames 602 to move up and down together on the housing 1.

[0030] In this embodiment, rotating the crank 605 rotates the transmission rod 601 on the two support plates 603. The rotating transmission rod 601 is transmitted through the transmission lifting component 606, thereby driving multiple support frames 602 to move up or down on the housing 1. This further drives multiple low guide rollers 502 to move up or down in the oil chamber 4, facilitating the adjustment of the distance between the high guide roller 501 at the highest point and the low guide roller 502 at the lowest point in the "S"-shaped conveyor line. This facilitates the adjustment of the distance between the environmentally friendly high antibacterial polylactic acid fiber yarn. The oil immersion time in the oil solution allows for controllable immersion duration, preventing excessive oil buildup on the environmentally friendly, high-antibacterial polylactic acid fiber yarn due to prolonged immersion, and also preventing insufficient oiling due to insufficient immersion. After adjusting the distance, the limiting pin 604 is screwed onto the support plate 603 to press its bottom end against the transmission rod 601, thereby limiting and fixing the transmission rod 601 and further securing the adjusted distance. This prevents the transmission rod 601 from rotating again due to external factors.

[0031] See Figure 3 , Figure 8 and Figure 9 Optionally, the transmission lifting component 606 includes a main bevel gear 6061 and a lifting screw 6062. The bottom end of the lifting screw 6062 is fixedly connected to a driven bevel gear 6063 that meshes with the main bevel gear 6061. A lifting seat 6064 is threadedly connected to the lifting screw 6062. The lifting seat 6064 is fixedly connected to the support frame 602. A bearing seat 6065, which is fixedly connected to the housing 1, is rotatably connected to the lifting screw 6062, and the bearing seat 6065 is located below the lifting seat 6064.

[0032] In this embodiment, the lifting screw 6062 is supported by the bearing seat 6065 fixed on the housing 1. When the transmission rod 601 rotates, it drives the main bevel gear 6061 fixed on it to rotate. Through the meshing transmission between the main bevel gear 6061 and the driven bevel gear 6063, the lifting screw 6062 is driven to rotate on the corresponding lifting seat 6064. Then, through the sliding connection between the support frame 602 and the housing 1 and the threaded transmission between the lifting seat 6064 and the lifting screw 6062, the support frame 602 is driven to move up or down when the lifting screw 6062 rotates. Through the synchronous operation of multiple transmission lifting components 606, it is easy to drive multiple support frames 602 to move up or down synchronously.

[0033] See Figure 4 Optionally, the "V" shaped roller group 7 includes three guide rollers constituting the "V" conveyor line, namely the first guide roller 701, the second guide roller 702 and the third guide roller 703. The first guide roller 701 is rotatably mounted on the top left side of the housing 1, one end of the second guide roller 702 is rotatably connected to the front side wall of the fiber transition chamber 3, the third guide roller 703 is rotatably mounted on the top of the partition plate 2, and a fourth guide roller 13 that cooperates with the "S" shaped roller group 5 is rotatably mounted on the top right side of the housing 1.

[0034] In this embodiment, the environmentally friendly, high-antibacterial polylactic acid fiber yarn is initially guided and conveyed by the fourth guide roller 13, allowing it to smoothly enter the oil chamber 4 and circle around the outside of the first high guide roller 501 in the "S"-shaped roller group 5. The third guide roller 703 guides the environmentally friendly, high-antibacterial polylactic acid fiber yarn, which has been conveyed through the "S"-shaped conveyor and immersed in oil, and conveys it into the fiber transition chamber 3. Then, it passes around the bottom of the second guide roller 702 and the top of the first guide roller 701 in sequence. In this way, the environmentally friendly, high-antibacterial polylactic acid fiber yarn, which has been immersed in oil, undergoes a "V" conveying in the fiber transition chamber 3. The second guide roller 702 then passes around the bottom of the second guide roller 702 and the top of the first guide roller 701. Two points form the lowest point, which facilitates the flow of excess oil on the environmentally friendly, high-antibacterial polylactic acid (PLA) fiber yarn towards the lowest point under gravity, and finally drips off at the lowest point for removal. This allows the oiled PLA fiber yarn to first undergo a transition in the fiber transition chamber 3 to remove excess oil, making the oil applied to the PLA fiber yarn more even and sufficient. Then, it is guided and conveyed out by the first guide roller 701 to enter the next process, avoiding the possibility of excess oil dripping onto the work area and causing pollution when used directly.

[0035] See Figure 2 , Figure 6 and Figure 7Optionally, a box cover 10 is provided on the top of the box body 1. The rear side of the box cover 10 is rotatably connected to the box body 1. Cylinders 11 are rotatably connected to both the front and rear sides of the box body 1. The telescopic ends of the cylinders 11 are rotatably connected to the corresponding sides of the box cover 10. Limiting rollers 14 that cooperate with the first guide roller 701 and the fourth guide roller 13 are rotatably installed on the left and right sides of the bottom of the box cover 10, respectively.

[0036] In this embodiment, the cover 10 is placed on the box body 1 to facilitate the sealing of the fiber transition chamber 3 and oil chamber 4 inside the box body 1, reducing the amount of dust and dirt falling into the fiber transition chamber 3 and oil chamber 4. The cover 10 is opened or closed on the box body 1 by the extension and retraction of the cylinder 11, which is convenient for use. A limiting roller 14 is used in conjunction with the first guide roller 701 and the fourth guide roller 13. After the box cover 10 is closed, it is convenient to guide and limit the environmentally friendly high antibacterial polylactic acid fiber yarn entering and exiting the box 1, and will not interfere with the box cover 10, thus protecting the environmentally friendly high antibacterial polylactic acid fiber yarn when it enters and exits the box 1.

[0037] It should be noted that, in order to facilitate the up-and-down movement of the support frame 602, a clearance opening is provided on one side of the box cover 10 to facilitate the up-and-down movement of the support frame 602. When the box cover 10 is in the act of closing, it will not interfere with the movement of the support frame 602.

[0038] See Figure 4 Optionally, a wiping structure 12 is provided at the output end of the "V"-shaped roller group 7, which is used to wipe away excess oil adhering to the environmentally friendly high antibacterial polylactic acid fiber yarn. The wiping structure 12 includes two base plates 1201 that are detachably connected to the housing 1, and a sponge 1202 is installed on the side of the two base plates 1201 that are close to each other.

[0039] In this embodiment, by installing a substrate 1201 above and below the environmentally friendly high-antibacterial polylactic acid fiber yarn near the first guide roller 701 in the fiber transition chamber 3, and installing a sponge 1202 on the side of the two substrates 1201 that are close to each other, the environmentally friendly high-antibacterial polylactic acid fiber yarn that is to be conveyed passes between the two sponges 1202, which facilitates further wiping away the excess oil adhering to the environmentally friendly high-antibacterial polylactic acid fiber yarn, thereby making the oil on the environmentally friendly high-antibacterial polylactic acid fiber yarn more uniform, and the excess oil is collected in the fiber transition chamber 3.

[0040] Specifically, drain pipes 15 with valves are provided on both the left and right sides of the bottom of the housing 1. The input end of one drain pipe 15 is connected to the bottom of the inner cavity of the fiber transition chamber 3. When the valve is opened, the oil collected in the fiber transition chamber 3 can be discharged through the drain pipe 15 for easy collection, processing and reuse. The input end of the other drain pipe 15 is connected to the bottom of the inner cavity of the oil chamber 4. When the valve is opened, the oil stored in the oil chamber 4 can be discharged through the other drain pipe 15.

[0041] See Figure 1 and Figures 10-12 Optionally, the oil chamber 4 is provided with an auxiliary support 8 that works in conjunction with the other end of the high guide roller 501 and the low guide roller 502 to provide auxiliary support for the high guide roller 501 and the low guide roller 502.

[0042] In this embodiment, when the auxiliary support 8 is not connected to the high guide roller 501 and the low guide roller 502, it is convenient to install the environmentally friendly high antibacterial polylactic acid fiber yarn in an "S" shape on the "S" shaped roller group 5. After it is installed on the "S" shaped roller group 5, the auxiliary support 8 is then installed on the other end of the high guide roller 501 and the low guide roller 502. This facilitates auxiliary support when the high guide roller 501 and the low guide roller 502 convey the environmentally friendly high antibacterial polylactic acid fiber yarn, thereby improving the conveying stability.

[0043] Specifically, the auxiliary support 8 includes a sliding fastener and a grid plate 801. The sliding fastener includes two guide rails 805 that are respectively fixedly connected to the rear ends of the left and right side walls of the oil chamber 4. The two guide rails 805 are slidably connected to the side of each other with a rib 806. The bottom end of the rib 806 is fixedly connected to the grid plate 801. The top of each guide rail 805 is slidably provided with a threaded post 807. The threaded post 807 is fixedly connected to the sliding end of the rib 806. A knurled knob 808 is threadedly connected to the threaded post 807. A frame 802 is provided at both the upper and lower ends of one side of the grating plate 801. The upper frame 802 is fixedly connected to the grating plate 801, and the lower frame 802, close to the grating plate 801, is provided with a sliding guide head 803 that slides with the grating groove 8011 on the grating plate 801, facilitating the lower frame 802 to slide up and down along the height direction of the grating groove 8011 on the grating plate 801. Several bushings 804 are rotatably connected to the side wall of the two frames 802 away from the grating plate 801. The bushings 804 on the upper frame 802 are inserted into the other end of the high guide roller 501, and the bushings 804 on the lower frame 802 are inserted into the other end of the low guide roller 502. The environmentally friendly high antibacterial polyurethane emulsion... After the acid fiber yarn is wound in an "S" shape around multiple high guide rollers 501 and multiple low guide rollers 502, the grid plate 801 slides on the guide rail 805 via the rib bar 806, moving closer to the "S" shaped roller group 5. When the sliding stops, the other ends of the multiple high guide rollers 501 are inserted into the bushings 804 on the corresponding upper end plate frame 802, and the other ends of the multiple low guide rollers 502 are inserted into the bushings 804 on the corresponding lower end plate frame 802, thus providing auxiliary support for the "S" shaped roller group 5. Then, the knurled knob 808 is screwed on the threaded post 807 to limit and fix the position of the rib bar 806 after it slides on the guide rail 805, further limiting and fixing the position of the grid plate 801 to prevent movement during support.

[0044] See Figure 1 and Figure 13 Optionally, the fiber transition chamber 3 is provided with an auxiliary support 9 that cooperates with the other end of the second guide roller 702 to provide auxiliary support for the second guide roller 702.

[0045] In this embodiment, when the auxiliary support 9 is not connected to the second guide roller 702, it is convenient to install the environmentally friendly high antibacterial polylactic acid fiber yarn on the second guide roller 702. It forms a "V" shaped conveyor line with the first guide roller 701 and the second guide roller 702. After being installed on the second guide roller 702, the auxiliary support 9 is then installed on the other end of the second guide roller 702. This facilitates auxiliary support when the second guide roller 702 conveys the environmentally friendly high antibacterial polylactic acid fiber yarn, thereby improving the conveying stability.

[0046] Specifically, the auxiliary support 9 includes a support rod 901. Both the upper and lower ends of the support rod 901 are fixedly connected to a slider seat 902. The slider seat 902 is rotatably connected to a bushing 903 on one side close to the second guide roller 702. The other end of the second guide roller 702 is connected to the bushing 903. Guide rails 904 are provided on both the left and right sides of the slider seat 902. The rear end of the guide rails 904 is fixedly connected to the rear side wall of the fiber transition chamber 3. The slider seat 902 is slidably connected between the two guide rails 904. Threaded posts 905 are slidably provided on the side of the two guide rails 904 that are far apart from each other. The threaded posts 905 are fixedly connected to the sliding end of the slider seat 902 on the guide rails 904. Knurled knobs 906 are threadedly connected to the threaded posts 905. After the environmentally friendly, high-antibacterial polylactic acid fiber yarn is passed in a "V" shape around the top of the third guide roller 703, the bottom of the second guide roller 702, and the top of the first guide roller 701, the support rod 901 is pushed towards the other end of the second guide roller 702, causing the two slider seats 902 to slide on the corresponding guide rails 904. When the sliding stops, the other end of the second guide roller 702 is inserted into the bushing 903, providing auxiliary support for the second guide roller 702 in the "V" shaped roller group 7. Then, the knurled knob 906 is screwed on the threaded post 905 to limit and fix the position of the slider seat 902 after it slides on the guide rail 904, further limiting and fixing the position of the slider seat 902 to prevent movement during support.

[0047] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. An environmentally friendly, high-antibacterial polylactic acid fiber production equipment, characterized in that, The application relates to a box (1) which is divided into a fiber transition chamber (3) and an oil liquid chamber (4) for storing oil liquid by a partition plate (2); An "S"-shaped roller set (5) is arranged in the oil liquid chamber (4) and is used for "S"-shaped conveying of environment-friendly high-antibacterial polylactic acid fiber yarn in oil liquid in the oil liquid chamber (4); A distance adjusting mechanism (6) is arranged on the front side of the box (1) and is used for adjusting the distance between the highest point and the lowest point of the "S"-shaped roller set (5); A "V"-shaped roller set (7) is arranged in the fiber transition chamber (3) and is used for "V"-shaped conveying of environment-friendly high-antibacterial polylactic acid fiber yarn soaked in oil liquid, and oil liquid is gathered and dropped at the lowest point.

2. The environmentally friendly high-antibacterial polylactic acid fiber production apparatus according to claim 1, characterized in that, The "S"-shaped roller set (5) comprises a plurality of high guide rollers (501) and a plurality of low guide rollers (502) which constitute an "S"-shaped conveying line, a single low guide roller (502) is located between two adjacent high guide rollers (501), one end of the high guide roller (501) is rotationally connected with the front side wall of the oil liquid chamber (4), and the distance adjusting mechanism (6) is connected with one end of the plurality of low guide rollers (502). 3.The environmentally-friendly high-antibacterial polylactic acid fiber production apparatus according to claim 2, characterized in that, The distance adjusting mechanism (6) comprises a transmission rod (601) and a plurality of support frames (602), the transmission rod (601) is rotationally connected with a support plate (603) fixedly connected with the box (1), the top of one support plate (603) is threadedly connected with a limiting pin (604), the bottom end of the limiting pin (604) is in abutting fit with the outer wall of the transmission rod (601), one end of the transmission rod (601) is provided with a crank (605), one end of the plurality of low guide rollers (502) is respectively rotationally connected with the end portion of the plurality of support frames (602) extending into the oil liquid chamber (4), the front side of each support frame (602) is provided with a transmission lifting piece (606) connected with the transmission rod (601), and the transmission lifting piece (606) is used for driving the plurality of support frames (602) to move up and down on the box (1) when the transmission rod (601) rotates.

4. The environmentally friendly high-antibacterial polylactic acid fiber production apparatus according to claim 3, characterized in that, The transmission lifting piece (606) comprises a main bevel gear (6061) and a lifting lead screw (6062), the bottom end of the lifting lead screw (6062) is fixedly connected with a driven bevel gear (6063) meshing with the main bevel gear (6061), the lifting lead screw (6062) is threadedly connected with a lifting seat (6064), the lifting seat (6064) is fixedly connected with the support frame (602), the lifting lead screw (6062) is rotationally connected with a bearing seat (6065) fixedly connected with the box (1), and the bearing seat (6065) is located below the lifting seat (6064). 5.The environmentally-friendly high-antibacterial polylactic acid fiber production apparatus according to claim 1, wherein The "V"-shaped roller set (7) comprises three guide rollers constituting a "V"-shaped conveying line, namely a first guide roller (701), a second guide roller (702) and a third guide roller (703), the first guide roller (701) is rotatably installed at the top left side of the box body (1), one end of the second guide roller (702) is rotatably connected with the front side wall of the fiber transition chamber (3), the third guide roller (703) is rotatably installed at the top end of the partition plate (2), and the fourth guide roller (13) matched with the "S"-shaped roller set (5) is rotatably installed at the top right side of the box body (1). 6.The environmentally-friendly high-antibacterial polylactic acid fiber production apparatus according to claim 5, characterized in that, The top of the box body (1) is provided with a box cover (10), the rear side of the box cover (10) is rotatably connected with the box body (1), the front and rear sides of the box body (1) are rotatably connected with air cylinders (11), the telescopic ends of the air cylinders (11) are rotatably connected with the corresponding sides of the box cover (10), and the bottom left and right sides of the box cover (10) are rotatably installed with limiting rollers (14) matched with the first guide roller (701) and the fourth guide roller (13). 7.The environmentally-friendly high-antibacterial polylactic acid fiber production apparatus according to claim 1, wherein The output end of the "V"-shaped roller set (7) is provided with a wiping structure (12) for wiping off the excess oil liquid attached to the environment-friendly high-antibacterial polylactic acid fiber yarn, the wiping structure (12) comprises two base plates (1201) detachably connected with the box body (1), and sponges (1202) are installed on the sides close to each other of the two base plates (1201). 8.The environmentally-friendly high-antibacterial polylactic acid fiber production apparatus according to claim 2, characterized in that, The oil liquid chamber (4) is provided with an auxiliary support I (8) matched with the other end of the high guide roller (501) and the low guide roller (502) for auxiliary supporting the high guide roller (501) and the low guide roller (502). 9.The environmentally-friendly high-antibacterial polylactic acid fiber production apparatus according to claim 5, characterized in that, The fiber transition chamber (3) is provided with an auxiliary support II (9) matched with the other end of the second guide roller (702) for auxiliary supporting the second guide roller (702).

10. An environmentally friendly high antibacterial polylactic acid fiber production process, characterized by, The environment-friendly high-antibacterial polylactic acid fiber production equipment based on any one of claims 1-9 comprises the following process steps: Step 1, a fiber transition chamber (3) and an oil liquid chamber (4) are separated in a box body (1) by a partition plate (2), an "S"-shaped roller set (5) is installed on one side in the oil liquid chamber (4), and a "V"-shaped roller set (7) is installed on the same side in the fiber transition chamber (3); Step 2, a distance adjusting mechanism (6) for adjusting the distance between the highest point and the lowest point of the "S"-shaped roller set (5) is installed outside the box body (1), and a fourth guide roller (13) is installed on the right side of the box body (1); Step 3, the environment-friendly high-antibacterial polylactic acid fiber yarn is wound from the top of the fourth guide roller (13), then wound in an "S" shape on each high guide roller (501) and low guide roller (502) in the "S"-shaped roller set (5), then wound over the top of the third guide roller (703), the bottom of the second guide roller (702) and the top of the first guide roller (701) in the "V"-shaped roller set (7) in sequence after being wound out of the "S"-shaped roller set (5), then conveyed in a "V" shape in the fiber transition chamber (3), and finally output from the left side of the box body (1); Step 4, add oil to the oil chamber (4), and make the oil soak the top of the "S" shaped roller group (5), to deliver the environment-friendly high-antibacterial polylactic acid fiber yarn, observe the oiling of the environment-friendly high-antibacterial polylactic acid fiber yarn in the fiber transition chamber (3), adjust the oiling time of the environment-friendly high-antibacterial polylactic acid fiber yarn in the oil through the pitch adjusting mechanism (6), so that the oiling of the environment-friendly high-antibacterial polylactic acid fiber yarn is more uniform and sufficient, and the environment-friendly high-antibacterial polylactic acid fiber yarn will not produce adverse phenomena such as burr and static electricity due to uneven oiling.

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