Electrostatic spinning auxiliary yarn forming device
By optimizing the collection and winding system of the electrospinning equipment, the problems of low collection efficiency and poor yarn quality of nanofibers have been solved, achieving efficient collection and uniform winding of nanofibers, improving the strength and quality of yarns, and expanding their application in the textile field.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN INSTITUTE OF ENGINEERING
- Filing Date
- 2025-06-16
- Publication Date
- 2026-05-19
AI Technical Summary
Existing electrospinning equipment suffers from problems such as low nanofiber collection efficiency, easy fiber ejection, and low yarn quality, which affect the yarn forming effect and mechanical properties, thus limiting its application in high-end textiles.
By optimizing the collection and winding system and employing components such as a funnel collector, hollow shaft, rotary drive mechanism, yarn winding device, and ceramic insulating disc, the efficient collection and uniform winding of nanofibers are achieved, thereby enhancing the strength and quality of the yarn.
It improves the collection efficiency of nanofibers and the strength and quality of yarns, broadens the application scope of nanofibers in the textile field, and meets the needs of high-end textiles.
Smart Images
Figure CN224258864U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of electrospinning technology, specifically an electrospinning-assisted yarn forming device. Background Technology
[0002] Electrospinning, as an emerging method for preparing nanofibers, has received widespread attention in the textile industry in recent years. In existing electrospinning processes, the nanofiber solution is ejected from the nozzle of the spinning solution propeller and collected in a funnel collector under the influence of a high-voltage electric field. However, current electrospinning equipment has several limitations. On the one hand, as nanofibers accumulate, a conical fiber membrane forms on the funnel collector. However, due to structural design flaws, some of the nanofiber solution overflows the funnel collector, flying behind it or adsorbing onto its outer wall. This not only wastes raw materials but also affects the efficiency and quality of fiber collection. On the other hand, as the funnel collector rotates, the spinning solution and fiber membrane are easily thrown out from the end of the funnel collector, resulting in uneven fiber distribution and further reducing the yarn's forming effect and mechanical properties. Furthermore, existing yarn winding devices often fail to achieve uniform twisting and tight winding during the winding process, making it difficult for the final yarn product to meet the requirements of high-end textiles in terms of strength and stability. These problems severely restrict the application of electrospinning technology in large-scale industrial production. Utility Model Content
[0003] To address the above problems, this utility model provides an electrospinning-assisted yarn forming device. By optimizing the collection and winding system, it effectively solves the problems of low nanofiber collection efficiency, easy fiber ejection, and low yarn quality in the prior art. It achieves efficient collection, uniform winding, and tight bonding of nanofibers with yarn, thereby improving the strength and quality of yarn and broadening the application scope of nanofibers in the textile field.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] An electrospinning-assisted yarn-forming device includes a spinning solution propeller and a funnel collector for collecting nanofibers ejected from the spinning solution propeller. The rear end of the funnel collector is connected to a hollow shaft, which is driven to rotate by a rotary drive mechanism. One end of the yarn is wound on a yarn bobbin, and the other end is guided by a yarn guide hook, extends out from the rear end of the hollow shaft through the funnel collector, is guided again by the yarn guide hook, and is wound on a rubber rod. A winding device includes a rotatable rubber rod for winding the yarn guided by the funnel collector and a linear movement mechanism for driving the rubber rod to reciprocate. An insulating disc is fixed to a mounting base by a mounting rod, and a central hole is opened in the center of the insulating disc. The front end of the funnel collector is fitted into the central hole, and the funnel collector rotates within the central hole.
[0006] The beneficial effects of the above technical solution are as follows: by setting up components such as a funnel collector, hollow shaft, rotary drive mechanism, yarn, winding device and insulating disk, it is possible to effectively collect the nanofibers ejected from the electrospinning solution propeller and guide them onto the yarn. At the same time, the winding device realizes the winding and twisting of the yarn, thereby improving the strength and quality of the yarn and broadening the application scope of nanofibers in the textile field.
[0007] As a further improvement to the above solution, the insulating disk is made of ceramic.
[0008] The beneficial effects of the above technical solution are as follows: ceramic material has good insulation and high temperature resistance, which can effectively prevent static electricity accumulation, ensure the stable operation of the spinning process, and extend the service life of the insulating disc.
[0009] As a further improvement to the above scheme, the surface of the insulating disk is uniformly distributed with raised dots.
[0010] The beneficial effects of the above technical solution are as follows: the raised points on the surface of the insulating disk can increase the contact area with the nanofibers, enhance the adsorption and retention of the fibers, prevent the fibers from being thrown out, and improve the fiber collection efficiency.
[0011] As a further improvement to the above scheme, the surface of the insulating disk is distributed with concentric annular protrusions.
[0012] The beneficial effects of the above technical solution are as follows: the design of concentric ring protrusions can form multiple barriers, further improving the blocking effect on nanofibers, making them adhere more tightly to the yarn, and enhancing the structural stability of the yarn.
[0013] As a further improvement to the above scheme, a boss is provided on the edge of the insulating disk.
[0014] The beneficial effects of the above technical solution are as follows: the protrusions on the edge of the insulating disk can effectively prevent nanofibers and spinning solution from being thrown out from the edge of the insulating disk, prevent fiber loss, and ensure the smooth progress of the spinning process.
[0015] As a further improvement to the above solution, the rotary drive mechanism includes a pulley mounted on a hollow shaft and a pulley mounted on a speed-regulating motor, with the two pulleys connected by a transmission belt.
[0016] The beneficial effects of the above technical solution are as follows: the belt drive rotary drive mechanism has a simple structure and runs smoothly, and can achieve stable rotation of the hollow shaft. At the same time, the speed-regulating motor can adjust the speed according to the process requirements, thereby improving the flexibility and adaptability of spinning.
[0017] As a further improvement to the above solution, a rubber rod is connected to a rotary motor; the rubber rod and the rotary motor are mounted on a slide; the slide is set on a lead screw; the lead screw is mounted on a frame, and one end of the lead screw is connected to a moving motor.
[0018] The beneficial effects of the above technical solution are as follows: by cooperating with the rotary motor and the linear motion mechanism, the rotation and reciprocating movement of the rubber rod can be realized, so that the yarn is evenly stressed during the winding process, thereby improving the winding quality and density of the yarn, and avoiding the breakage problem caused by uneven yarn winding.
[0019] As a further improvement to the above scheme, the yarn is polyester staple fiber yarn.
[0020] The beneficial effects of the above technical solution are as follows: polyester staple fiber yarn has good strength and abrasion resistance, can effectively carry nanofibers formed by electrospinning, and the composite yarn formed after combining with nanofibers has better mechanical properties and wearing performance.
[0021] As a further improvement to the above scheme, the nanofibers are polyethylene terephthalate (PET) nanofibers.
[0022] The beneficial effects of the above technical solution are as follows: PET nanofibers have high strength and toughness, and can be tightly combined with polyester staple fiber yarn to form high-strength and high-toughness composite yarn, which meets the textile industry's demand for high-strength fibers.
[0023] The overall beneficial effects of this utility model compared to the prior art
[0024] This invention effectively solves the problems of low nanofiber collection efficiency, easy fiber ejection, and low yarn quality in existing electrospinning technologies. Compared with existing technologies, this invention can achieve orderly arrangement, efficient collection, and uniform winding of nanofibers, significantly improving yarn strength and quality, expanding the application scope of nanofibers in the textile field, and possessing high practical value and market prospects. Attached Figure Description
[0025] Figure 1 This is a top view of the electrospinning-assisted yarn-forming device, showing the relative positions of the funnel collector, the winding device, and the electrospinning equipment.
[0026] Figure 2 This is a side view of the winding device.
[0027] Figure 3 A cross-sectional view of the structure installed for the funnel collector.
[0028] Figure 4 This is a schematic diagram of an insulating disk with an annular protrusion on its edge.
[0029] Figure 5 This is a schematic diagram showing the dotted protrusions distributed on the upper surface of the insulating disk.
[0030] Figure 6 This is a schematic diagram showing a concentric circular protrusion structure distributed on the upper surface of an insulating disk.
[0031] In the diagram: 1. Funnel collector; 2. Yarn guide hook; 3. Yarn; 4. Yarn spool; 5. Electrical control box; 6. Speed-regulating motor; 7. Hollow shaft; 8. Pulley; 9. Mounting base; 10. Insulating disc; 11. Rubber rod; 12. Slide table; 13. Rotary motor; 14. Lead screw; 15. Moving motor; 16. Slide bar; 17. Frame; 18. Nozzle; 19. Spinning solution propeller; 20. Mounting rod; 21. Boss. Detailed Implementation
[0032] To enable those skilled in the art to better understand the technical solution, the present invention will be described in detail below with reference to the embodiments. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.
[0033] like Figures 1-6 As shown, this utility model provides an electrostatic spinning-assisted yarn forming device, which mainly includes a spinning solution propeller 19, a funnel collector 1, an insulating disc 10, yarn 3, and a winding device.
[0034] The spinning solution propeller 19 is a device used to deliver the spinning solution to the spinneret at a certain speed and flow rate. It is one of the common key components in electrospinning equipment and belongs to existing technology. A typical spinning solution propeller 19 mainly consists of a motor, a lead screw, a moving slider, and a syringe. Its working principle is that the motor drives the lead screw to move the moving slider, thereby propelling the syringe mounted on the moving slider at a uniform speed, delivering the spinning solution to the spinneret at a stable flow rate. The flow rate of the spinning solution propeller 19 is usually adjustable over a wide range, such as 1-30 ml / h, to meet the needs of different electrospinning processes.
[0035] The funnel collector 1 is a conical stainless steel funnel with a maximum diameter of 10.3 cm, a minimum diameter of 1 cm, a funnel depth of 10 cm, and a rear rod length of 10 cm. The rear end is connected to a hollow shaft 7. The funnel collector 1 is grounded.
[0036] The funnel collector 1 has an insulating disc 10 fitted at the front end. The central opening of the insulating disc 10 matches the funnel collector 1. The insulating disc 10 is connected to the mounting base 9 via the mounting rod 20 on the back. The funnel collector 1 rotates inside the insulating disc 10, while the insulating disc 10 remains stationary.
[0037] The front of the insulating disk 10 can be designed with dot-shaped protrusions or ring-shaped protrusions to improve the resistance to the spinning solution and fiber membrane, and prevent them from being thrown out.
[0038] Furthermore, annular protrusions can be designed on the edge of the insulating disk 10 to prevent the spinning solution and fiber membrane from being thrown off the insulating disk 10.
[0039] The hollow shaft 7 is mounted on the mounting base 9. The hollow shaft 7 is driven to rotate by a rotary drive mechanism. The rotary drive mechanism includes a pulley 8 set on the hollow shaft 7 and a pulley 8 set on the speed regulating motor 6. The two pulleys 8 are connected by a transmission belt.
[0040] An electrical control box 5 is also installed on the funnel collector 1.
[0041] The yarn 3 is made of polyester staple fiber yarn. One end is wound around the yarn bobbin 4, and the other end passes through the funnel collector 1 and the yarn guide hook 2 from the rear end of the hollow shaft 7 and is then wound around the rubber rod 11.
[0042] The winding device includes a rotatable rubber rod 11 and a linear motion mechanism that drives the rubber rod 11 to reciprocate. The rubber rod 11 is connected to a rotary motor 13. The rubber rod 11 and the rotary motor 13 are mounted on a slide table 12. The slide table 12 is mounted on a lead screw 14. The lead screw 14 is mounted on a frame 17. One end of the lead screw 14 is connected to a moving motor 15. The rubber rod 11 is 20 cm long, 4.5 cm in diameter, and has a surface roughness of Ra 0.8–1.6 μm.
[0043] The frame 17 is also provided with at least two slide bars 16 parallel to the lead screw 14, and the slide table 12 is mounted on the slide bars 16 and moves.
[0044] The implementation process of the electrospinning-assisted yarn forming device is as follows:
[0045] 1. The polyester staple fiber yarn wound on the yarn bobbin 4 is drawn out, guided by the yarn guide hook 2, and then passed through the rear end of the hollow shaft 7 and the funnel collector 1 in sequence. After being guided by the second yarn guide hook, it is wound onto the rubber rod 11. The second yarn guide hook is fixed to the frame to prevent the yarn from swinging with the rubber rod.
[0046] 2. Connect the speed-regulating motor 6 to the rotary drive mechanism and ensure that it is working properly.
[0047] 3. Install the winding device onto the frame 17, ensuring that the slide table 12, lead screw 14, moving motor 15 and rotary motor 13 are working properly.
[0048] 4. After the power is turned on, the speed-regulating motor 6 drives the hollow shaft 7 to rotate via the transmission belt, which in turn drives the funnel collector 1 to rotate. The polyethylene terephthalate (PET) nanofiber solution sprayed from the nozzle 18 of the spinning solution propeller 19 is collected on the funnel collector 1 under the action of a high-voltage electric field. As the number of nanofibers increases, a conical fiber membrane forms at the opening of the funnel.
[0049] Because an insulating disc 10 is designed at the end of the funnel collector 1, the nanofiber solution sprayed by the spinning solution propeller 19 will not enter the rear of the funnel collector 1, thus improving the reliability of the equipment operation.
[0050] 5. As the funnel collector 1 rotates, the PET nanofibers of the conical fiber membrane rotate and wrap around the yarn 3 to achieve twisting.
[0051] 6. The rotary motor 13 drives the rubber rod 11 to rotate, so that the yarn 3 wound on the rubber rod 11 can be further twisted during the rotation process, thereby increasing the strength of the yarn 3.
[0052] 7. The moving motor 15 drives the lead screw 14, causing the slide table 12 to move the rubber rod 11 and the rotary motor 13 back and forth in a set direction to achieve uniform winding of the yarn 3.
[0053] Through the above steps, the orderly arrangement, twisting, and uniform winding of nanofibers can be achieved, thereby improving the strength and quality of yarn 3 and broadening the application scope of nanofibers in the textile field.
[0054] It should be noted that, in this document, the terms "comprising," "including," and any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Specific examples have been used in this document to illustrate the principles and implementation methods of the present invention. These examples are merely for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be pointed out that, due to the limitations of written expression and the objective existence of infinite specific structures, those skilled in the art can make several improvements, modifications, or variations without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, variations, or combinations, or the direct application of the concept and technical solution of the present invention to other situations without modification, should all be considered within the scope of protection of the present invention.
Claims
1. An electrospinning-assisted yarn-forming device, comprising a spinning solution propeller (19), characterized in that, Also includes: Funnel collector (1): used to collect nanofibers ejected from the spinning solution propeller (19), the rear end of the funnel collector (1) is connected to a hollow shaft (7); the hollow shaft (7) is driven to rotate by a rotary drive mechanism; Yarn (3): One end is wound around the yarn bobbin (4), and the other end is guided by the yarn guide hook (2), extends out from the rear end of the hollow shaft (7) through the funnel collector (1), and is guided again by the yarn guide hook (2) before being wound around the rubber rod (11); The winding device includes a rotatable rubber rod (11) for winding the yarn (3) guided out by the funnel collector (1) and a linear motion mechanism for driving the rubber rod (11) to reciprocate. Insulating disc (10): It is fixed on the mounting base (9) by the mounting rod (20), and a central hole is opened in the center of the insulating disc (10); the front end of the funnel collector (1) is fitted into the central hole, and the funnel collector (1) rotates in the central hole.
2. The electrospinning-assisted yarn forming device according to claim 1, characterized in that, The insulating disk (10) is made of ceramic.
3. The electrospinning-assisted yarn forming device according to claim 1, characterized in that, The surface of the insulating disk (10) is uniformly distributed with raised dots.
4. The electrospinning-assisted yarn forming device according to claim 1, characterized in that, The surface of the insulating disk (10) is covered with concentric annular protrusions.
5. The electrospinning-assisted yarn forming device according to claim 1, characterized in that, The edge of the insulating disk (10) is provided with a boss (21).
6. The electrospinning-assisted yarn forming device according to claim 1, characterized in that, The rotary drive mechanism includes a pulley (8) mounted on a hollow shaft (7) and a pulley (8) mounted on a speed-regulating motor (6), with the two pulleys (8) connected by a transmission belt.
7. The electrospinning-assisted yarn forming device according to claim 1, characterized in that, The rubber rod (11) is connected to the rotary motor (13); the rubber rod (11) and the rotary motor (13) are mounted on the slide table (12); the slide table (12) is mounted on the lead screw (14); the lead screw (14) is mounted on the frame (17), and one end of the lead screw (14) is connected to the moving motor (15).
8. The electrospinning-assisted yarn forming device according to claim 1, characterized in that: The yarn (3) is polyester staple fiber yarn.
9. The electrospinning-assisted yarn forming device according to claim 1, characterized in that: The nanofibers are polyethylene terephthalate (PET) nanofibers.