Electrostatic spinning equipment
By setting up a emitting device and a turntable on the moving path of the yarn core, the nanofibers are emitted by electric field and covered on the yarn core, the cumbersome problems in the prior art are solved, and efficient mixing of nanofibers with other fibers into textile pre-pre-textiles is achieved Preparation of molded parts.
Patent Information
- Application Number
- CN202323280249.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-01
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2033-12-01
AI Technical Summary
The existing electrostatic textile equipment is complicated when preparing nanofibers and other fibers to mix textile preforms, and it is impossible to form mixed nanofiber preforms at one time.
The radiating device and a turntable are arranged on the moving path of the yarn core, and the nanofibers are emitted by the electric field and the rotary rotary is rotated to cover the yarn core directly to form the core-encapsulated yarn, reducing additional processing steps.
The efficiency of mixing nanofibers and other fibers into textile preforms is improved, and a method of forming core-encapsulated yarns is realized.
Smart Images
Figure CN222274827U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of electrostatic spinning, in particular to an electrostatic spinning device. Background Art
[0002] With the development of nanotechnology, electrospinning is a simple and effective new processing technology for producing nanofibers, which plays a huge role in the fields of biomedical materials, filtration and protection.
[0003] Existing electrospinning equipment requires the preparation of nanofibers first, and then in the next process, the nanofibers are covered on the surface of other fibers to form a mixed nanofiber preform. However, this method is relatively cumbersome in the steps of preparing nanofibers into textile preforms, and it is impossible to form a mixed nanofiber preform in one go. Utility Model Content
[0004] The purpose of the utility model is to overcome the shortcomings of the prior art. The utility model provides an electrostatic spinning device, in which a launching device and a turntable are arranged on the moving path of the yarn core. The launching device launches nanofibers toward the turntable, and the nanofibers are covered on the yarn core through the rotation of the turntable to directly form core-spun yarn.
[0005] Accordingly, the utility model proposes an electrostatic textile device, which includes: a transmitting device and a receiving device, wherein the transmitting device spans above the receiving device;
[0006] The receiving device comprises: a base, a rotating disk, a driven roller and an active roller, wherein the rotating disk is inserted on the base, the driven roller is arranged on the right side of the base, and the active roller is arranged at the bottom of the base;
[0007] The driven roller is provided with a yarn core, the driven roller is connected to the output end of the active roller based on the yarn core, and the yarn core is driven by the active roller to move between the driven roller and the active roller;
[0008] The driven roller, the rotating disk and the output end of the driving roller form a moving path for the yarn core;
[0009] The launching device comprises: a first launcher and a second launcher, wherein the first launcher and the second launcher are located above the turntable, and the launching directions of the first launcher and the second launcher are aligned with the turntable.
[0010] Preferably, the top radius of the turntable is r1, the bottom radius is r2, and the constraint relationship between r1 and r2 is r1<r2.
[0011] Preferably, a connecting pipe is provided on the turntable, and the connecting pipe is located on the top of the turntable.
[0012] Preferably, a basalt fiber layer is provided on the surface of the turntable.
[0013] Preferably, the transmitting device further comprises: a positive power supply and a negative power supply;
[0014] The positive power supply is connected to the output end of the first transmitter, and the negative power supply is connected to the output end of the second transmitter.
[0015] Preferably, a distance between an output end of the first transmitter and an output end of the second transmitter is d1, and a constraint range of d1 is any value between 10 cm and 15 cm.
[0016] Preferably, the first launcher is provided with a first feeding device, and the second launcher is provided with a second feeding device.
[0017] Preferably, the straight-line distance between the output end of the first transmitter and the turntable is d2, and the constraint range of d2 is 8cm<d2<10cm;
[0018] The straight-line distance between the output end of the second transmitter and the turntable is d3, and the constraint range of d3 is 8cm<d3<10cm.
[0019] Preferably, a temperature controller is provided at the bottom of the receiving device, and a humidity controller is provided at one side of the receiving device.
[0020] Preferably, the electrostatic spinning device is further provided with a controller, and the controller is electrically connected to the receiving device, and the controller is electrically connected to the transmitting device.
[0021] Beneficial effects compared with the prior art:
[0022] By arranging a launching device and a turntable on the moving path of the yarn core, the launching device launches nanofibers toward the turntable under the action of the electric field, and the nanofibers are covered on the yarn core through the rotation of the turntable, and core-wrapped yarn is directly formed on the surface of the yarn core, and the nanofibers are formed at one time to prepare a textile preform, which reduces the additional steps of processing the nanofibers and other fibers mixed to prepare the textile preform, and improves the efficiency of preparing the nanofibers and other fibers mixed to prepare the textile preform. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0024] Figure 1 It is a structural schematic diagram of the textile equipment in the utility model;
[0025] Figure 2 It is a structural schematic diagram of the receiving device in the utility model;
[0026] Figure 3 It is a schematic cross-sectional view of the electrostatic spinning device in the utility model;
[0027] Figure 4 It is a structural schematic diagram of the launching device in the utility model.
[0028] In the accompanying drawings, 1. receiving device; 11. base; 111. left side plate; 1111. first limiting hole; 1112. guide channel; 112. right side plate; 1121. second limiting hole; 1122. bearing; 12. turntable; 121. connecting pipe; 13. driven roller; 14. active roller; 2. launching device; 21. first launcher; 22. second launcher; 23. positive power supply; 24. negative power supply; 25. first feeding device; 26. second feeding device; 3. yarn core. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0030] Figure 1 A structural schematic diagram of the textile equipment in the utility model is shown, and the electrostatic textile equipment includes: a transmitting device 2 and a receiving device 1, and the transmitting device 2 spans over the receiving device 1; the transmitting device 2 is used to manufacture nanofibers and emit the nanofibers to the receiving device 1, and the receiving device 1 is used to collect liquid nanofibers and solidify the nanofibers on the receiving device 1 to form solid nanofibers.
[0031] Furthermore, the electrostatic spinning equipment is also provided with a controller, which is electrically connected to the receiving device 1 and electrically connected to the transmitting device 2; the controller is used to control the working status of each component of the transmitting device 2 and the working status of each component of the receiving device 1, so as to facilitate equipment maintenance.
[0032] Figure 2 The structure diagram of the receiving device in the utility model is shown. Figure 3 A schematic cross-sectional structure diagram of the electrostatic spinning device in the utility model is shown, wherein the receiving device 1 comprises: a base 11, a turntable 12, a driven roller 13, an active roller 14 and a driving motor; the base 11 comprises: a left side plate 111 and a right side plate 112, the active roller 14 is arranged at the bottom of the left side plate 111 and the right side plate 112, the driven roller 13 is arranged at the middle of the side of the right side plate 112 away from the left side plate 111, the turntable 12 is inserted at the top of the side of the right side plate 112 close to the left side plate 111, and the driving motor is arranged at the top of the side of the right side plate 112 away from the left side plate 111.
[0033] Furthermore, the two ends of the driven roller 13 are provided with fixing plates, which are fixedly connected to the right side plate 112, one fixing plate is provided with a limiting groove, and the other fixing plate is provided with a limiting hole. One end of the driven roller 13 is inserted into the limiting hole, and the other end of the driven roller 13 is inserted into the limiting groove, so that the driven roller 13 can be fixed between the two fixing plates.
[0034] Furthermore, a yarn core 3 is disposed on the driven roller 13, and preferably, the yarn core 3 is made of aramid fiber.
[0035] Furthermore, the output end of the active roller 14 is located on the side of the left plate 111 away from the right plate 112, the middle area of the active roller 14 is plugged into the left plate 111 and the right plate 112, the input end of the active roller 14 is located on the side of the right plate 112 away from the left plate 111, and the input end of the active roller 14 is connected to the controller.
[0036] Furthermore, a first limiting hole 1111 is provided on the left side plate 111, and a second limiting hole 1121 is provided on the right side plate 112, and the first limiting hole 1111 and the second limiting hole 1121 are located on the same horizontal line. The lower semicircle of the first limiting hole 1111 extends two arc-shaped channels to both ends, and the two arc-shaped channels and the first limiting hole 1111 form a guide channel 1112, and the first and the end of the guide channel 1112 are both chamfered with arcs. A bearing 1122 is provided inside the second limiting hole 1121, and the bearing 1122 is fixedly arranged in the second limiting hole 1121.
[0037] Furthermore, the top radius of the turntable 12 is r1, the bottom radius of the turntable 1212 is r2, the constraint relationship between r1 and r2 is r1<r2, and the turntable 12 is conical in appearance.
[0038] Further, the rotating disk 12 is provided with a connecting pipe 121, and the connecting pipe 121 is located at the top of the rotating disk 12. A moving passage is provided in the connecting pipe 121, and the moving passage runs from the end of the connecting pipe 121 to the bottom of the rotating disk 12. The rotating disk 12 is inserted into the second limiting hole 1121 based on the connecting pipe 121, wherein the connecting pipe 121 is inserted into the bearing 1122 in the second limiting hole 1121.
[0039] Furthermore, a basalt fiber layer is provided on the surface of the rotating disk 12. The basalt fiber layer has good electrical insulation, which avoids the degradation of equipment performance or equipment performance failure caused by static electricity, and effectively prevents static electricity from affecting the operation of the electrostatic spinning equipment.
[0040] Furthermore, the output end of the driving motor is connected to the port of the connecting tube 121. When the driving motor is running, it drives the connecting tube 121 to rotate around the central axis of the connecting tube 121, thereby driving the turntable 12 to rotate around the connecting tube 121.
[0041] Furthermore, a temperature controller is provided at the bottom of the receiving device 1, and a humidity controller is provided at one side of the receiving device 1. The temperature controller controls the temperature in the textile equipment between 18°C and 22°C, which is conducive to maintaining the corresponding viscosity and surface tension of the solution at a suitable temperature, ensuring that the produced nanofibers can achieve the expected effect. The humidity controller controls the relative humidity in the textile equipment between 55% and 65%, ensuring that the humidity inside the equipment is appropriate, so that the produced nanofibers do not stick to each other and are easier to take care of.
[0042] Specifically, the driven roller 13, the second limiting hole 1121, the first limiting hole 1111 and the output end of the active roller 14 form a moving path of the yarn core 3. One end of the yarn core 3 is arranged on the active roller 14, and the other end of the yarn core 3 is arranged on the driven roller 13. When the active roller 14 rotates, the yarn core 3 is driven to move from the driven roller 13 to the second limiting hole 1121, enter the connecting tube 121 from the second limiting hole 1121, and move to the bottom of the turntable 12 along the moving channel. The yarn core 3 is continuously driven by the active roller 14, and continues to move from the bottom of the turntable 12 to the guide channel 1112, and passes through the first limiting hole 1111 along the guide channel 1112 to the end of the guide channel 1112, and moves downward from the end of the guide channel 1112 to the output end of the active roller 14, and finally winds on the output end of the active roller 14.
[0043] Figure 4 The schematic diagram of the structure of the launch device in the utility model is shown, the launch device 2 includes: a fixing frame, a positive power supply 23, a negative power supply 24, a first launcher 21 and a second launcher 22; the fixing frame includes: a vertical pole and a horizontal pole, the vertical pole is divided into a left vertical pole and a right vertical pole, and the left vertical pole is fixedly connected to the right vertical pole based on the horizontal pole. The positive power supply 23 and the negative power supply 24 are both arranged above the horizontal pole, and the first launcher 21 and the second launcher 22 are arranged at the bottom of the horizontal pole.
[0044] The positive power supply 23 is connected to the output end of the first transmitter 21, and the negative power supply 24 is connected to the output end of the second transmitter 22. When two high-voltage power supplies with opposite polarities are connected to the output ends of the two transmitters, an electric field is formed between the output end of the first transmitter 21 and the output end of the second transmitter 22. The polymer solution on the output end of the first transmitter 21 and the polymer solution on the output end of the second transmitter 22 are stretched and vibrated under the action of the electric field to form charged nanofibers. In the process of nanofiber stretching and flying, the nanofibers emitted by the first transmitter 21 and the nanofibers emitted by the second transmitter 22 attract each other and embrace each other, so that the positive and negative charges on the nanofibers cancel each other out, and finally form solid micro-nanofibers on the turntable 12 of the receiving device 1.
[0045] Furthermore, the distance between the output end of the first emitter 21 and the output end of the second emitter 22 is d1, and the constraint range of d1 is 10cm to 15cm. In this embodiment, the distance d1 between the output end of the first emitter 21 and the output end of the second emitter 22 is preferably 10cm. Since the positive power supply 23 is connected to the output end of the first emitter 21, and the negative power supply 24 is connected to the output end of the second emitter 22, an electric field is formed between the first emitter 21 and the second emitter 22, so that the nanofibers can be stably stretched and have a fixed orientation, ensuring that the distance between the first emitter 21 and the second emitter 22 is appropriate, generating a uniform electric field, and stretching the nanofibers in the electric field to form the desired shape.
[0046] Furthermore, the first launcher 21 is provided with a first feeding device 25, and the second launcher 22 is provided with a second feeding device 26. The first feeding device 25 is wrapped around the rear half of the first launcher 21, so that the solution at the output end of the first launcher 21 always maintains a fixed weight, which is conducive to the nanofibers produced at the output end of the first launcher 21 to form solidified nanofibers on the turntable 12 and to be stretched into a desired shape.
[0047] Similarly, the second launcher 22 is provided with a second feeding device 26. The second feeding device 26 is wrapped around the rear half of the second launcher 22, so that the solution at the output end of the second launcher 22 always maintains a fixed weight, which is conducive to the nanofibers produced at the output end of the second launcher 22 to form solidified nanofibers on the turntable 12 and to be stretched into a desired shape.
[0048] refer to Figures 1 to 4When the receiving device 1 starts working, the turntable 12 is driven to rotate with the connecting tube 121 as the axis, and the active roller 14 starts to rotate, driving the yarn core 3 to move from the driven roller 13 to the active roller 14. At the same time, when the transmitting device 2 starts working, the output end of the first transmitter 21 and the output end of the second transmitter 22 stretch out liquid nanofibers under the action of the electric field. The liquid nanofibers are deposited on the edge of the bottom of the turntable 12, and the turntable 12 continues to rotate, so that the liquid nanofibers form a conical solid nanofiber layer at the bottom of the turntable 12. The apex of the yarn core 3 and the conical solid nanofiber layer are located on the same horizontal line, and the nanofibers at the apex of the solid nanofiber layer cover the surface of the yarn core 3. When the yarn core 3 moves from the bottom of the turntable 12 to the active roller 14, the yarn core 3 will have a pulling effect on the nanofiber layer, so that the nanofibers at the apex of the nanofiber layer cover the corresponding position of the yarn core 3, thereby directly forming a core-spun yarn.
[0049] Furthermore, in order to allow nanofibers of suitable diameter to cover the outer surface of the yarn core 3, the straight-line distance between the output end of the first emitter 21 and the turntable 12 is d2, and the constraint range of d2 is 8cm<d2<10cm; in this embodiment, the straight-line distance d2 between the output end of the first emitter 21 and the turntable 12 is preferably 10cm, and the distance between the output end of the first emitter 21 and the turntable 12 affects the diameter of the produced nanofibers. When the distance between the output end of the first emitter 21 and the turntable 12 is less than 10cm, the diameter of the produced nanofibers will be smaller; when the distance between the output end of the first emitter 21 and the turntable 12 is greater than 10cm, the diameter of the produced nanofibers will become larger and larger.
[0050] Similarly, the straight-line distance between the output end of the second emitter 22 and the turntable 12 is d3, and the constraint range of d3 is 8cm<d3<10cm. In this embodiment, the straight-line distance d3 between the output end of the second emitter 22 and the turntable 12 is preferably 10cm, and the distance between the output end of the second emitter 22 and the turntable 12 affects the diameter of the produced nanofiber. When the distance between the output end of the second emitter 22 and the turntable 12 is less than 10cm, the diameter of the produced nanofiber will be smaller; when the distance between the output end of the second emitter 22 and the turntable 12 is greater than 10cm, the diameter of the produced nanofiber will be larger and larger.
[0051] The working principle of the utility model is:
[0052] The turntable 12 rotates with the second limiting hole 1121 as the axis, and the first feeding device 25 pushes the tail of the first emitter 21 to make the solution flow out of the output end of the first emitter 21, and the second feeding device 26 pushes the tail of the second emitter 22 to make the solution flow out of the output end of the second emitter 22. The positive power supply 23 and the negative power supply 24 are energized at the same time, so that an electric field is formed between the first emitter 21 and the second emitter 22. The solutions of the first emitter 21 and the second emitter 22 are stretched and vibrated by the electric field to form nanofibers, and the nanofibers are finally deposited on the turntable 12. When the turntable 12 rotates, the nanofibers form a conical nanofiber layer at the bottom of the turntable 12. The yarn core 3 passes through the apex of the nanofiber layer and contacts the nanofibers. When the yarn core 3 is driven by the active roller 14 to move forward, there is a pulling force on the nanofibers, so that the nanofibers at the apex of the nanofiber layer cover the yarn core 3 to form a core-spun yarn. The yarn covering core 3 moves along the second limiting hole 1121 , and finally moves to the active roller 14 , and is wound around the active roller 14 .
[0053] In addition, the above is a detailed introduction to an electrostatic spinning device provided by an embodiment of the utility model. In this article, specific examples are used to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method of the utility model and its core idea; at the same time, for general technical personnel in this field, according to the idea of the utility model, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.
Claims
1. An electrostatic spinning device, characterized in that: The electrostatic spinning device comprises: a transmitting device and a receiving device, wherein the transmitting device spans above the receiving device; The receiving device comprises: a base, a rotating disk, a driven roller and an active roller, wherein the rotating disk is inserted on the base, the driven roller is arranged on the right side of the base, and the active roller is arranged at the bottom of the base; The driven roller is provided with a yarn core, the driven roller is connected to the output end of the active roller based on the yarn core, and the yarn core is driven by the active roller to move between the driven roller and the active roller; The driven roller, the rotating disk and the output end of the driving roller form a moving path for the yarn core; The launching device comprises: a first launcher and a second launcher, wherein the first launcher and the second launcher are located above the turntable, and the launching directions of the first launcher and the second launcher are aligned with the turntable.
2. The electrostatic spinning device according to claim 1, characterized in that: The top radius of the turntable is r1, and the bottom radius is r2. The constraint relationship between r1 and r2 is r1<r2.
3. The electrostatic spinning device according to claim 1, characterized in that: The rotating disk is provided with a connecting pipe, and the connecting pipe is located at the top of the rotating disk.
4. The electrostatic spinning device according to claim 1, characterized in that: A basalt fiber layer is arranged on the surface of the turntable.
5. The electrostatic spinning device according to claim 1, characterized in that: The transmitting device also includes: a positive power supply and a negative power supply; The positive power supply is connected to the output end of the first transmitter, and the negative power supply is connected to the output end of the second transmitter.
6. The electrostatic spinning device according to claim 1, characterized in that: The distance between the output end of the first transmitter and the output end of the second transmitter is d1, and the constraint range of d1 is any value between 10 cm and 15 cm.
7. The electrospinning device according to claim 1, characterized in that: The first launcher is provided with a first feeding device, and the second launcher is provided with a second feeding device.
8. The electrostatic spinning device according to claim 1, characterized in that: The straight-line distance between the output end of the first transmitter and the turntable is d2, and the constraint range of d2 is 8cm<d2<10cm; The straight-line distance between the output end of the second transmitter and the turntable is d3, and the constraint range of d3 is 8cm<d3<10cm.
9. The electrospinning device according to claim 1, characterized in that: A temperature controller is arranged at the bottom of the receiving device, and a humidity controller is arranged at one side of the receiving device.
10. The electrospinning device according to claim 1, characterized in that: The electrostatic spinning device is also provided with a controller, and the controller is electrically connected to the receiving device, and the controller is electrically connected to the transmitting device.