Spinning equipment for polylactic acid hollow fibers
By designing a polylactic acid hollow fiber spinning equipment with carding teeth and adjusting rod structures, the problems of fiber winding are solved, effective carding and smooth winding of fibers are achieved, and transportation and processing efficiency is improved.
Patent Information
- Application Number
- CN202421298667.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-06-07
AI Technical Summary
During the spinning process of polylactic fiber, there is a lack of effective carding measures, which leads to messy winding of fibers and knotting, affecting subsequent transportation and processing.
A spinning equipment for polylactic acid hollow fibers is designed, using a card teeth and an adjustment rod structure. By inserting the card teeth into the fibers and combing the fibers during the winding process, the adjustment rods realize the adjustment of the card teeth spacing to avoid interlacing of fibers.
It effectively avoids the mess and knotting of fibers, ensures the smooth winding and transmission of fibers, and improves the efficiency of subsequent transportation and processing.
Smart Images
Figure CN222922668U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of polylactic acid hollow fiber production, in particular to a spinning device for polylactic acid hollow fibers. Background Technique
[0002] Polylactic acid fiber is made from starch-containing agricultural products such as corn, wheat, and sugar beet. After lactic acid is generated by fermentation, it is then subjected to polycondensation and melt spinning. Polylactic acid fiber is a synthetic fiber with raw materials that can be planted easily, and its waste can be naturally degraded in nature. It can be decomposed into carbon dioxide and water by the action of microorganisms in soil or seawater. When burning, it will not emit poisonous gases and will not cause pollution. It is an ecological fiber for sustainable development. Spinning refers to the process of extruding a colloidal solution or melt through the fine holes of a spinneret to form chemical fibers.
[0003] During the spinning process of polylactic acid fiber, after the fiber is extruded through the fine holes of the spinneret, it needs to be collected uniformly by a winding roller. During the winding process of polylactic acid fiber, there is no good combing measure, resulting in the winding of polylactic acid fiber being chaotic. The polylactic acid fibers rub against each other, knot, and form pills during the winding process, seriously affecting the subsequent transportation and processing of polylactic acid fiber. Content of the Utility Model
[0004] The purpose of the utility model is to provide a spinning device for polylactic acid hollow fibers to solve the problems raised in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A spinning device for polylactic acid hollow fibers, including a mounting base, an installation shaft is provided on the mounting base. Both ends of the installation shaft penetrate through the mounting base and are rotatably connected to the mounting base. Three groups of annularly distributed mounting plates are provided on the installation shaft. Multiple groups of equidistantly distributed adjusting rods are provided on the mounting plates. Both ends of the middle adjusting rod are fixedly connected to the mounting plate. Two groups of symmetrically distributed connecting rods are provided between the two groups of adjusting rods. A slider is provided between the two groups of connecting rods. A combing tooth is provided below the adjusting rod. The combing tooth is rotatably connected to the adjusting rod through a rotating shaft.
[0006] As a further preferred of this technical solution, both groups of connecting rods are rotatably connected to the slider through rotating shafts. Both ends of the connecting rods are slidably connected to the two groups of adjusting rods respectively. The slider is slidably connected to the mounting plate.
[0007] As a further preferred of this technical solution, a bidirectional lead screw is provided inside the mounting plate. Both ends of the bidirectional lead screw penetrate through the mounting plate and are rotatably connected to the mounting plate. A first motor is provided inside the mounting plate. The left end of the bidirectional lead screw is connected to the output end of the first motor. The bidirectional lead screw penetrates through the two outer groups of adjusting rods and is threadedly connected to the two groups of adjusting rods respectively.
[0008] As a further preference of the technical solution, a gear is sleeved on the left end of the mounting shaft, a rack is arranged in the mounting seat, a cylinder is arranged in the mounting seat, the rack is slidably connected with the mounting seat, the rack is meshed with the gear, and the rack is fixedly connected with the output end of the piston rod of the cylinder.
[0009] As a further preference of the technical solution, a mounting frame is arranged on the mounting seat, a cleaning brush is arranged on the mounting frame, the cleaning brush is arranged corresponding to the carding teeth, a scraping plate is arranged on the mounting frame, a dust collecting box is arranged on the mounting frame, the scraping plate is attached to the cleaning brush, the dust collecting box is located below the scraping plate, and the dust collecting box is slidably connected with the mounting frame.
[0010] As a further preference of the technical solution, a threaded rod is arranged in the mounting frame, both ends of the threaded rod respectively penetrate through the mounting frame and are rotatably connected with the mounting frame, the scraping plate is slidably connected with the mounting frame, a second motor is arranged in the mounting frame, the threaded rod penetrates through the scraping plate and is in threaded connection with the scraping plate, and the upper end of the threaded rod is connected with the output end of the second motor.
[0011] The utility model provides a spinning device for polylactic acid hollow fibers, which has the following beneficial effects:
[0012] (1) The utility model combs the polylactic acid fibers during winding by arranging carding teeth, and adjusts the distance between the carding teeth through an adjusting rod, a connecting rod, etc., so as to be applicable to the winding work of different numbers of polylactic acid fibers; before winding, the polylactic acid fibers are passed through the carding teeth below the mounting shaft, so that the carding teeth are inserted between the polylactic acid fibers, and the polylactic acid fibers are combed during the transmission process of the polylactic acid fibers during winding. The polylactic acid fibers erected by the carding teeth can avoid being disordered or knotted due to their staggered winding. Moreover, the bidirectional lead screw is rotated by the first motor, so that the two groups of adjusting rods at both ends slide outwards or inwards synchronously, and the middle adjusting rod and the carding teeth remain stationary. During the sliding process, the distance between every two groups of adjusting rods is synchronously adjusted through the connecting rod between every two groups of adjusting rods, so that the distance between the carding teeth changes equidistantly, thereby realizing the combing work during the limited winding of different numbers of polylactic acid fibers.
[0013] (2) The utility model realizes the cleaning of the carding teeth after being used for a period of time by arranging a cleaning brush. The broken fibers contaminated on the carding teeth during the carding of polylactic acid fibers adhere to the carding teeth, and the cleaning brush and the scraper are used to clean them, so as to avoid the re - contamination of the broken fibers on the polylactic acid fibers during the carding process; after a group of carding teeth are used for a period of time, the air cylinder is started to drive the rack to slide, and the gear is cooperated to make the mounting shaft rotate counterclockwise to drive the three mounting plates to rotate, so as to realize the replacement of the carding teeth. The replaced carding teeth are located above the cleaning brush and rub against the cleaning brush during the next replacement process, so that the broken fibers on the carding teeth remain on the cleaning brush to complete the cleaning of the carding teeth. The broken fibers remaining on the cleaning brush are collected into the dust collection box by the movement of the scraper, which is convenient for the staff to clean centrally. Description of the Drawings
[0014] Figure 1 It is a schematic structural diagram of the whole of the utility model;
[0015] Figure 2 It is a schematic structural diagram of the mounting shaft of the utility model;
[0016] Figure 3 For the utility model Figure 2 -Enlarged structural view at A;
[0017] Figure 4 It is a schematic structural diagram of the carding teeth of the utility model;
[0018] Figure 5 It is a schematic structural diagram of the cleaning brush of the utility model;
[0019] In the figure: 1, mounting seat; 2, mounting shaft; 3, gear; 4, rack; 5, air cylinder; 6, mounting plate; 7, adjusting rod; 8, connecting rod; 9, slider; 10, bidirectional lead screw; 11, first motor; 12, carding teeth; 13, mounting frame; 14, cleaning brush; 15, scraper; 16, threaded rod; 17, second motor; 18, dust collection box. Detailed Embodiment
[0020] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the utility model.
[0021] The utility model provides a technical solution: as Figure 1 , Figure 3 and Figure 4As shown in the figure, in this embodiment, a spinning device for polylactic acid hollow fibers includes a mounting base 1. A mounting shaft 2 is provided on the mounting base 1. Both ends of the mounting shaft 2 penetrate through the mounting base 1 and are rotatably connected to the mounting base 1. Three sets of annularly distributed mounting plates 6 are provided on the mounting shaft 2. Multiple sets of equally spaced adjusting rods 7 are provided on the mounting plates 6. Both ends of the middle adjusting rod 7 are fixedly connected to the mounting plate 6. Two sets of symmetrically distributed connecting rods 8 are provided between the two sets of adjusting rods 7. A slider 9 is provided between the two sets of connecting rods 8. A carding tooth 12 is provided below the adjusting rod 7. The carding tooth 12 is rotatably connected to the adjusting rod 7 through a rotating shaft. Both sets of connecting rods 8 are rotatably connected to the slider 9 through rotating shafts. Both ends of the connecting rod 8 are slidably connected to the two sets of adjusting rods 7. The slider 9 is slidably connected to the mounting plate 6. A bidirectional lead screw 10 is provided inside the mounting plate 6. Both ends of the bidirectional lead screw 10 penetrate through the mounting plate 6 and are rotatably connected to the mounting plate 6. A first motor 11 is provided inside the mounting plate 6. The left end of the bidirectional lead screw 10 is connected to the output end of the first motor 11. The bidirectional lead screw 10 penetrates through the two outer sets of adjusting rods 7 and is threadedly connected to the two sets of adjusting rods 7 respectively. A gear 3 is sleeved on the left end of the mounting shaft 2. A rack 4 is provided inside the mounting base 1. A cylinder 5 is provided inside the mounting base 1. The rack 4 is slidably connected to the mounting base 1. The rack 4 is meshed with the gear 3. The rack 4 is fixedly connected to the output end of the piston rod of the cylinder 5.
[0022] By setting the carding teeth 12 to card the polylactic acid fibers during winding, and through the adjusting rods 7 and the connecting rods 8, etc., the distance between the carding teeth 12 can be adjusted to be suitable for the winding work of different numbers of polylactic acid fibers; before winding, the polylactic acid fibers are passed through the carding teeth 12 below the mounting shaft 2, so that the carding teeth 12 are inserted between the polylactic acid fibers, and during the winding process, when the polylactic acid fibers are transmitted, the fibers during the transmission process are carded. The polylactic acid fibers standing after passing through the carding teeth 12 can avoid being disordered or knotted due to their interlacing and entanglement. And by driving the bidirectional lead screw 10 to rotate through the first motor 11, the two sets of adjusting rods 7 at both ends slide outwards or inwards synchronously, and the middle adjusting rod 7 and the carding teeth 12 remain stationary. During the sliding process, the distance between every two sets of adjusting rods 7 is synchronously adjusted through the connecting rod 8 between every two sets of adjusting rods 7, so that the distance between the carding teeth 12 changes equidistantly, thereby realizing the carding work during the limited winding of different numbers of polylactic acid fibers.
[0023] As Figure 2 and Figure 5As shown in the figure, an installation frame 13 is provided on the mounting base 1. A cleaning brush 14 is provided on the installation frame 13. The cleaning brush 14 is arranged corresponding to the carding teeth 12. A scraper 15 is provided on the installation frame 13. A dust collection box 18 is provided on the installation frame 13. The scraper 15 is attached to the cleaning brush 14. The dust collection box 18 is located below the scraper 15. The dust collection box 18 is slidably connected to the installation frame 13. A threaded rod 16 is provided inside the installation frame 13. Both ends of the threaded rod 16 respectively penetrate through the installation frame 13 and are rotatably connected to the installation frame 13. The scraper 15 is slidably connected to the installation frame 13. A second motor 17 is provided inside the installation frame 13. The threaded rod 16 penetrates through the scraper 15 and is threadedly connected to the scraper 15. The upper end of the threaded rod 16 is connected to the output end of the second motor 17.
[0024] The cleaning of the carding teeth 12 after being used for a period of time is achieved by setting the cleaning brush 14. The broken fibers contaminated on the carding teeth 12 during the process of carding polylactic acid fibers adhere to the carding teeth 12. The cleaning brush 14 and the scraper 15 are used to clean them, so as to prevent the broken fibers from re - adhering to the polylactic acid fibers during the carding process. After a group of carding teeth 12 have been used for a period of time, the air cylinder 5 is started to drive the rack 4 to slide, and the gear 3 is cooperated to make the installation shaft 2 rotate counterclockwise to drive the three groups of mounting plates 6 to rotate, so as to realize the replacement of the carding teeth 12. The replaced carding teeth 12 are located above the cleaning brush 14 and rub against the cleaning brush 14 during the next replacement process, so that the broken fibers on the carding teeth 12 remain on the cleaning brush 14 to complete the cleaning of the carding teeth 12. The broken fibers remaining on the cleaning brush 14 are collected into the dust collection box 18 by the movement of the scraper 15, which is convenient for the staff to clean centrally.
[0025] The utility model provides a spinning device for polylactic acid hollow fibers, and the specific working principle is as follows: Before winding, the polylactic acid fibers are passed through the carding teeth 12 below the mounting shaft 2, so that the carding teeth 12 are inserted between the polylactic acid fibers, and during the winding process, when the polylactic acid fibers are driven, the fibers in the driving process are carded. The polylactic acid fibers erected by the carding teeth 12 can avoid being disordered or knotted due to their interlacing and entanglement. Moreover, the first motor 11 drives the bidirectional lead screw 10 to rotate, so that the two groups of adjusting rods 7 at both ends slide outwards or inwards synchronously, and the adjusting rod 7 and the carding teeth 12 in the middle remain stationary. During the sliding process, the connecting rod 8 between every two groups of adjusting rods 7 realizes the synchronous adjustment of the distance between every two groups of adjusting rods 7, so that the distance between the carding teeth 12 changes equidistantly, and thus the carding work during the limited winding of different numbers of polylactic acid is realized. After a set of carding teeth 12 is used for a period of time, the air cylinder 5 is started to drive the rack 4 to slide, and the gear 3 is cooperated to make the mounting shaft 2 rotate counterclockwise to drive the three mounting plates 6 to rotate, so as to realize the replacement of the carding teeth 12. The replaced carding teeth 12 are located above the cleaning brush 14, and during the next replacement process, they rub against the cleaning brush 14, so that the broken fibers on the carding teeth 12 remain on the cleaning brush 14 to complete the cleaning of the carding teeth 12. The broken fibers remaining on the cleaning brush 14 are collected into the dust collection box 18 by the movement of the scraping plate 15, which is convenient for the staff to centrally clean up.
[0026] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A spinning device for polylactic acid hollow fibers, comprising a mounting seat (1), characterized in that: The mounting seat (1) is provided with a mounting shaft (2), the two ends of the mounting shaft (2) respectively pass through the mounting seat (1) and are rotatably connected to the mounting seat (1), the mounting shaft (2) is provided with three groups of annularly distributed mounting plates (6), the mounting plates (6) are provided with a plurality of groups of equally spaced adjustment rods (7), the two ends of the middle adjustment rod (7) are respectively fixedly connected to the mounting plate (6), two groups of symmetrically distributed connecting rods (8) are provided between the two groups of the adjusting rods (7), a sliding block (9) is provided between the two groups of the connecting rods (8), and combing teeth (12) are provided below the adjusting rod (7), and the combing teeth (12) are rotatably connected to the adjusting rod (7) via a rotating shaft.
2. The spinning device of a polylactic acid hollow fiber according to claim 1, characterized in that: The two groups of connecting rods (8) are rotatably connected to the slider (9) via a rotating shaft, the two ends of the connecting rod (8) are respectively slidably connected to the two groups of adjusting rods (7), and the slider (9) is slidably connected to the mounting plate (6).
3. The spinning device of a polylactic acid hollow fiber according to claim 1, characterized in that: A bidirectional screw rod (10) is provided in the mounting plate (6), and both ends of the bidirectional screw rod (10) respectively penetrate the mounting plate (6) and are rotatably connected to the mounting plate (6). A first motor (11) is provided in the mounting plate (6), and the left end of the bidirectional screw rod (10) is connected to the output end of the first motor (11). The bidirectional screw rod (10) respectively penetrates two sets of outer adjustment rods (7) and is respectively threadedly connected to the two sets of adjustment rods (7).
4. The spinning device of a polylactic acid hollow fiber according to claim 1, characterized in that: The left end of the mounting shaft (2) is sleeved with a gear (3), the mounting seat (1) is provided with a rack (4), the mounting seat (1) is provided with a cylinder (5), the rack (4) is slidably connected to the mounting seat (1), the rack (4) is meshingly connected to the gear (3), and the rack (4) is fixedly connected to the output end of the piston rod of the cylinder (5).
5. The spinning device of a polylactic acid hollow fiber according to claim 1, characterized in that: The mounting seat (1) is provided with a mounting frame (13), the mounting frame (13) is provided with a cleaning brush (14), the cleaning brush (14) is arranged corresponding to the combing teeth (12), the mounting frame (13) is provided with a scraper (15), the mounting frame (13) is provided with a dust collecting box (18), the scraper (15) is fitted with the cleaning brush (14), the dust collecting box (18) is located below the scraper (15), and the dust collecting box (18) is slidably connected to the mounting frame (13).
6. The spinning device of a polylactic acid hollow fiber according to claim 5, characterized in that: A threaded rod (16) is provided in the mounting frame (13), two ends of the threaded rod (16) respectively penetrate the mounting frame (13) and are rotatably connected to the mounting frame (13), the scraper (15) is slidably connected to the mounting frame (13), a second motor (17) is provided in the mounting frame (13), the threaded rod (16) penetrates the scraper (15) and is threadedly connected to the scraper (15), and the upper end of the threaded rod (16) is connected to the output end of the second motor (17).