Electrostatic ionization device and array spinning ionization box

Abstract

The invention discloses an electrostatic ionization device and an array spinning ionization box, and relates to the field of textile processing machinery, the electrostatic ionization device comprises an ionization assembly, the ionization assembly is provided with a backflow groove with a top opening, and a metal wire which is horizontally arranged and can be externally connected with a power supply is arranged above the backflow groove; the reciprocating assembly comprises a liquid supply brush making contact with the upper surface of the metal wire and can drive the liquid supply brush to reciprocate along the axis of the metal wire and coat the surface of the metal wire with a polymer solution used for electrostatic ionization. The liquid supply assembly can store a polymer solution and convey the stored polymer solution to the liquid supply brush, and the backflow groove is communicated with the liquid supply assembly and can collect the polymer solution dripping in the process that the surface of a metal wire is brushed by the liquid supply brush and flow back into the liquid supply assembly. According to the electrostatic ionization device and the array spinning ionization box, the solution utilization rate can be increased, rapid replacement of multiple solution varieties can be achieved, raw material waste is reduced, and the production cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of textile processing machinery technology, and in particular to an electrostatic ionization device and an array textile ionization box. Background Technology

[0002] Electrostatic ionization technology, as a core method for preparing nanoscale fiber fragments, particles, and lattices, has significant application value in the field of functionalizing textile materials. Among these techniques, electrospinning, a special form of electrostatic ionization, can extend the aspect ratio of nanoarrays and even form continuous nanofibers by controlling parameters such as the viscosity, concentration, conductivity, and surface tension of the polymer solution. Composite spinning of these nanoscale materials with conventional short fibers can significantly increase the specific surface area of ​​the fibers, compensating for the shortcomings of traditional short fibers in antibacterial, moisture-absorbing, and filtration functions, and is an important approach to developing high-performance textile products.

[0003] Currently, one application of nanofiber / short fiber composite yarn forming technology and related equipment is adding equipment during the cotton web unfolding stage. While such equipment boasts high production efficiency, it is also bulky and requires a large floor space. To reduce the floor space, an improvement in existing technology involves adding equipment next to the spinning machine spindle. Although this solution optimizes the floor space, it suffers from low solution utilization; unionized polymer solutions cannot be effectively recovered, leading to raw material waste and increased production costs.

[0004] Therefore, there is an urgent need to design a technical solution that can improve solution utilization, reduce raw material waste, and lower production costs. Summary of the Invention

[0005] The purpose of this invention is to provide an electrostatic ionization device and an array spinning ionization box to solve the problems existing in the prior art, improve solution utilization, enable rapid replacement of multiple solution types, reduce raw material waste, and lower production costs.

[0006] To achieve the above objectives, the present invention provides the following solution: This invention provides an electrostatic ionization device, comprising: An ionization assembly has a reflux trough with a top opening, and a horizontally arranged metal wire capable of being connected to an external power source is provided above the reflux trough. A reciprocating assembly includes a liquid supply brush in contact with the upper surface of the metal wire, capable of driving the liquid supply brush to reciprocate along the axis of the metal wire, and brushing a polymer solution for electrostatic ionization onto the surface of the metal wire; and The liquid supply assembly stores the polymer solution and delivers it to the liquid supply brush. A return tank, connected to the liquid supply assembly, collects and returns any polymer solution dripping from the brush during the coating process on the metal wire. This invention's ionization assembly uses a metal wire as the electrostatic ionization electrode, which, in conjunction with the reciprocating liquid supply brush, evenly distributes the polymer solution. Unionized solution is returned to the liquid supply assembly via the return tank, achieving polymer solution recycling, improving solution utilization, reducing raw material waste, and lowering production costs.

[0007] Preferably, the ionization component has tension terminals symmetrically arranged at both ends of its top. One end of each tension terminal is connected to the corresponding end of the metal wire, and the other end is used to connect to an external power source.

[0008] Preferably, the bottom of the reflux tank is connected to a reflux pipe, and the end of the reflux pipe away from the reflux tank is connected to the liquid supply assembly. The height of the liquid supply assembly is less than the height of the bottom of the reflux tank.

[0009] Preferably, the reciprocating assembly further includes a reciprocating track and a drive module, the bottom of the liquid supply brush is movably connected to the reciprocating track, the top of the liquid supply brush extends horizontally above the metal wire, and the top of the liquid supply brush is in communication with the liquid supply assembly.

[0010] Preferably, the reciprocating assembly further includes a base, the base being hollow inside and having a strip-shaped opening on one side; the base is fixedly disposed at the bottom of the ionization assembly; the reciprocating track and the drive module are fixedly disposed inside the base, and the bottom of the liquid supply brush extends horizontally into the base through the strip-shaped opening and is movably connected to the reciprocating track.

[0011] Preferably, the top of the liquid supply brush has a circular hole, the bottom opening of the circular hole is located directly above the corresponding metal wire, the top of the circular hole is connected to a liquid supply pipe through a diversion pipe, and the end of the liquid supply pipe away from the diversion pipe is connected to the liquid supply assembly.

[0012] Preferably, the liquid supply assembly includes a liquid storage tank and a peristaltic pump. The liquid storage tank is capable of storing a polymer solution. The inlet of the peristaltic pump is connected to the interior of the liquid storage tank, and the outlet of the peristaltic pump is connected to the liquid supply pipe.

[0013] Preferably, both the ionization component and the reciprocating component are made of polytetrafluoroethylene; both the liquid supply pipe and the diversion pipe are made of silicone tubing.

[0014] The present invention also provides an array ionization box, including a box body, wherein a plurality of electrostatic ionization devices as described above are arranged side by side at the bottom of the box body; a front conveyor roller is provided at one end of the upper part of the box body, and a rear conveyor roller is provided at the other end of the upper part of the box body, the front conveyor roller and the rear conveyor roller are used to convey fiber slivers; the electrostatic ionization device can electrostatically ionize the polymer solution on the metal wire and deposit it onto the surface and interior of the fiber sliver under the action of an electric field, and form a nanoarray in situ on the surface of the fiber sliver.

[0015] Preferably, the overall height of the electrostatic ionization device is 20cm, the height of the box is between 0.5 and 2m, the width of the box is between 0.5 and 2m, and the distance between the front conveyor roller and the rear conveyor roller is between 0.5 and 3m.

[0016] The present invention achieves the following technical effects compared to the prior art: The ionization component of this invention uses metal wire as the electrostatic ionization electrode, which, together with the reciprocating liquid supply brush, evenly distributes the polymer solution. The unionized solution flows back to the liquid supply component through the return tank, realizing the recycling of the polymer solution, improving the solution utilization rate, and enabling rapid replacement of multiple solution types. This reduces raw material waste and lowers production costs. The electrostatic ionization device has a small footprint, is flexible in use, reduces the walking distance of operators, and can realize one-to-many and many-to-many production of carding machines, array yarn forming machines, and drawing frames, thereby improving production efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the electrostatic ionization device structure in one or more embodiments of the present invention; Figure 2 This is a schematic diagram of the electrostatic ionization device from another angle in one or more embodiments of the present invention. Figure 3 This is a right view of an electrostatic ionization device in one or more embodiments of the present invention; Figure 4 for Figure 3 AA section view; Figure 5 This is a schematic diagram of an array spunbonding box in one or more embodiments of the present invention.

[0019] In the diagram: 1-Linear steel wire, 2-Tension terminal block, 3-Ionization assembly, 4-Reciprocating assembly, 5-Return tank, 6-Liquid storage tank, 7-Peristaltic pump, 8-Liquid supply brush, 9-Liquid supply pipe, 10-First diversion pipe, 11-Second diversion pipe, 12-Return pipe, 13-Reciprocating track, 14-Roller, 15-Roller drive module, 16-Box, 17-Front conveyor roller, 18-Rear conveyor roller, 19-Fiber strip, 20-Power supply. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] The purpose of this invention is to provide an electrostatic ionization device and an array spinning ionization box to solve the problems existing in the prior art, improve solution utilization, enable rapid replacement of multiple solution types, reduce raw material waste, and lower production costs.

[0022] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] One existing solution involves installing an ionization device next to the spindle of a spinning machine. This solution suffers from low solution utilization; unionized polymer solutions cannot be effectively recovered, leading to raw material waste and increased production costs. To address this issue, the first objective of this invention is to provide an electrostatic ionization device. (Refer to...) Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the assembly includes an ionization component 3, a reciprocating component 4, and a liquid supply component. Both the ionization component 3 and the reciprocating component 4 are made of polytetrafluoroethylene (PTFE). The ionization component 3 has a top-opening reflux trough 5. Above the reflux trough 5, a horizontally arranged metal wire capable of connecting to an external power supply 20 is provided. Tension terminals 2 are symmetrically arranged at both ends of the top of the ionization component 3. One end of each tension terminal 2 is connected to the corresponding end of the metal wire, and the other end is used to connect to the external power supply 20. In this embodiment, the metal wire is a linear steel wire 1, of which two are provided. The two linear steel wires 1 are arranged in parallel, and each corresponds to a set of tension terminals 2. The tension terminals 2 do not... It is used only to fix the linear steel wire 1 and adjust its tension, and also serves as the access interface for high voltage static electricity to ensure that the linear steel wire 1 is stably charged to form a Taylor cone; the reciprocating assembly 4 includes a liquid supply brush 8 that contacts the upper surface of the metal wire, which can drive the liquid supply brush 8 to reciprocate along the axis of the metal wire and brush the surface of the metal wire with a polymer solution for electrostatic ionization; the liquid supply assembly can store the polymer solution and transport the stored polymer solution to the liquid supply brush 8; the return tank 5 is connected to the liquid supply assembly and can collect the polymer solution dripping during the brushing process of the liquid supply brush 8 on the surface of the metal wire and return it to the liquid supply assembly. The ionization component 3 of this invention uses metal wire as the electrostatic ionization electrode, which, together with the reciprocating liquid supply brush 8, evenly distributes the polymer solution. The unionized solution flows back to the liquid supply component through the return tank 5, realizing the recycling of the polymer solution, improving the solution utilization rate, reducing raw material waste, and lowering production costs. The electrostatic ionization device has a small footprint, is flexible in use, reduces the walking distance of operators, and can realize one-to-many and many-to-many production of carding machines, array yarn forming machines, and drawing frames, thereby improving production efficiency.

[0024] In one embodiment, a return pipe 12 is connected to the bottom of the return tank 5. The end of the return pipe 12 away from the return tank 5 is connected to the liquid supply component. The height of the liquid supply component is less than the height of the bottom of the return tank 5. In another embodiment, a return channel is connected between the return tank 5 and the liquid supply component. The return channel replaces the return pipe 12. The height of the end of the return channel near the return tank 5 is greater than the height of the end near the liquid supply component, ensuring that all the polymer solution collected in the return tank 5 is returned to the liquid supply component, thereby realizing the collection and recycling of the polymer solution.

[0025] To achieve smooth reciprocating movement of the liquid supply brush 8, in one embodiment, the reciprocating assembly 4 is provided with a reciprocating track 13 and a drive module. The bottom of the liquid supply brush 8 is movably connected to the reciprocating track 13, and the top of the liquid supply brush 8 extends horizontally above the metal wire and is connected to the liquid supply assembly. The bottom of the liquid supply brush 8 and the reciprocating track 13 can be connected by a slider or by a roller 14. When the bottom of the liquid supply brush 8 and the reciprocating track 13 are connected by a slider, the drive module uses a lead screw nut arranged parallel to the axis of the reciprocating track 13. One end of the lead screw is connected to a lead screw motor, and the nut on the lead screw is fixedly connected to the slider. The lead screw motor drives the lead screw to stay in place. The rotation causes the nut to drive the slider to move along the reciprocating track 13, thereby realizing the synchronous reciprocating movement of the liquid supply brush 8. When the bottom of the liquid supply brush 8 is connected to the reciprocating track 13 by roller 14, the drive module adopts the roller drive module 15. The roller drive module 15 includes a roller drive motor and a transmission chain. The transmission chain is arranged along the axis of the reciprocating track 13 and is connected to the roller 14. The axle of the roller 14 is rotatably installed at the bottom of the liquid supply brush 8, and one end of the axle of the roller 14 is connected to the roller drive motor located at the bottom of the liquid supply brush 8. The roller drive motor causes the roller 14 to move back and forth along the transmission chain, thereby driving the liquid supply brush 8 to move back and forth synchronously.

[0026] To achieve miniaturization of the device, in one embodiment, the reciprocating assembly 4 further includes a base, which is hollow inside and has a strip-shaped opening on one side; the base is fixedly installed at the bottom of the ionization assembly 3; the reciprocating track 13 and the drive module are fixedly installed inside the base; the liquid supply brush 8 includes a side plate, a bottom plate and a top plate; the side plate of the liquid supply brush 8 is vertically arranged outside the side wall of the base with the strip-shaped opening; the bottom plate of the liquid supply brush 8 is horizontally arranged, which extends horizontally into the base through the strip-shaped opening and is movably connected to the reciprocating track 13; the roller 14 moves back and forth along the direction of the reciprocating track 13, and the running stroke is equal to the length of the strip-shaped opening of the reciprocating assembly 4. The top plate of the liquid supply brush 8 extends horizontally to the upper part of the metal wire. Two circular holes, each corresponding to a linear steel wire 1, are formed on the top plate of the liquid supply brush 8. The bottom opening of each circular hole is located directly above the corresponding linear steel wire 1. The diversion tube includes a first diversion tube 10 and a second diversion tube 11. The tops of the two circular holes are connected to the liquid supply tubes 9 via the first diversion tube 10 and the second diversion tube 11, respectively. The end of the liquid supply tube 9 furthest from the diversion tube is connected to the liquid supply assembly. Liquid is supplied by both the liquid supply tube 9 and the liquid supply assembly. Since the center of each circular hole corresponds one-to-one with the axis of the two linear steel wires 1, the solution can be accurately dripped onto the surface of the linear steel wire 1. Both the liquid supply tube 9 and the diversion tube are made of silicone tubing, and the liquid supply tube 9 has a certain length so as not to interfere with the movement of the liquid supply brush 8.

[0027] In one embodiment, the liquid supply assembly includes a liquid storage tank 6 and a peristaltic pump 7. The liquid storage tank 6 is capable of storing a polymer solution. The solution dripped from the linear steel wire 1 is collected by the return tank 5 and flows back to the liquid storage tank 6 through the return pipe 12. The inlet of the peristaltic pump 7 is connected to the inside of the liquid storage tank 6, and the outlet of the peristaltic pump 7 is connected to the liquid supply pipe 9.

[0028] A second objective of this invention is to provide an array spinning ionization box, as referenced. Figure 5 As shown, the device includes a grounded housing 16, with 1 to 6 electrostatic ionization devices arranged side-by-side at the bottom of the housing 16. A front conveyor roller 17 is provided at one end of the upper part of the housing 16, and a rear conveyor roller 18 is provided at the other end of the upper part of the housing 16. In this embodiment, the front conveyor roller 17 and the rear conveyor roller 18 are used to convey fiber strips 19. The conveyor rollers can be replaced by conveyor rollers or other conveying devices with fiber strip 19 conveying functions. After the power supply 20 is turned on, the linear steel wire 1 becomes charged and causes the polymer solution on the surface to form a Taylor cone. The solution undergoes electrostatic ionization under the action of a high-voltage electric field, forming nanofibers or nanoparticles. Under the synergistic effect of the electric field force and the movement of the fiber strip 19, the nanomaterials are deposited on the surface and inside of the fiber strip 19, and finally a uniform nanoarray is formed in situ on the fiber surface. The overall height of the electrostatic ionization device is 20cm, the height of the housing 16 is between 0.5 and 2m, the width of the housing 16 is between 0.5 and 2m, and the distance between the front conveyor roller 17 and the rear conveyor roller 18 is between 0.5 and 3m. Each electrostatic ionization device is considered as a whole and connected to an external high-voltage power supply. They are installed in an arranged configuration at the bottom of the housing 16, with their respective high-voltage electrostatic interfaces being the tension terminals 2. The fiber strip 19 is conveyed forward by the front conveyor roller 17 and the rear conveyor roller 18, passing through the ionization box and above the arranged electrostatic ionization devices. The polymer solution on the linear steel wire 1 is charged by the high voltage and undergoes electrostatic ionization, depositing onto the surface and interior of the fiber strip 19 under the action of the electric field, forming a nanoarray in situ on the fiber surface. When six electrostatic ionization devices are arranged, up to six solutions can be configured in a specific arrangement; the electrostatic ionization device allows for flexible control of multiple solutions at multiple locations, greatly improving maintenance and installation convenience, and facilitating the development of more array-spun yarn varieties. Efficient and flexible nanoarray deposition is achieved through a modular design of the electrostatic ionization device. The ionization component 3 uses a linear steel wire 1 as the electrostatic ionization electrode, which, together with a reciprocating liquid supply brush 8, evenly distributes the polymer solution. Unionized solution is recycled through a return tank 5. The device has a low overall height and can be assembled and installed within the ionization chamber 16, supporting 1-6 modules in parallel and adaptable to different solutions. The device has a small footprint and can connect to multiple drawing frames from a single unit, making it suitable for the functional modification of various fibers.

[0029] Example 1 This embodiment provides a method for preparing wool / PVA / PAN array-spun yarn and a method for using the housing 16. S1: Preparation, including the following steps (1) Polymer solution preparation: Solution A: Polyacrylonitrile (PAN) (8 wt% dissolved in DMF); Solution B: Polyvinyl alcohol (PVA) (8 wt% dissolved in water). Fiber carrier: Wool fiber strips (5 g / m basis weight).

[0030] (2) Electrostatic ionization parameters: 50kV high voltage power supply, ionization distance 25cm, ambient temperature and humidity: 25℃, 40%RH (constant temperature and humidity control in the enclosure 16). S2: Preparation work, including the following steps (1) Module installation and configuration: Three electrostatic ionization devices are installed side by side at the bottom of the housing 16 from the inlet end to the outlet end of the fiber strip 19. The first and third electrostatic ionization devices are connected to solution A, and the second electrostatic ionization device is connected to solution B. Each storage tank 6 is filled with the corresponding solution to ensure that the liquid level is higher than the suction port of the peristaltic pump 7. The liquid supply rate is adjusted by the peristaltic pump 7. The liquid supply rate of the first and third electrostatic ionization devices is set to 5 mL / min, and the liquid supply rate of the second electrostatic ionization device is set to 3 mL / min to ensure stable solution delivery without dripping.

[0031] (2) Ionization process: Turn on the drive motors of the front conveyor roller 17 and the rear conveyor roller 18, set the conveying speed of the fiber strip 19, and ensure that the fiber strip 19 passes smoothly through the ionization box under the grip of the rollers without stretching or loosening. Start the roller drive module 15, and the liquid supply brush 8 moves along the reciprocating track 13 at a speed of 5 cm / s to uniformly coat the solution onto the surface of the linear steel wire 1. After the high voltage is applied, a Taylor cone is formed at the linear steel wire 1 and ionization occurs, and the nanofibers / particles are deposited on the cotton fiber strip 19 passing above. The unionized solution is collected through the return tank 5 and returned to the storage tank 6 for recycling through the return pipe 12.

[0032] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. An electrostatic ionization device, characterized in that: include: An ionization assembly has a reflux trough with a top opening, and a horizontally arranged metal wire capable of being connected to an external power source is provided above the reflux trough. A reciprocating assembly includes a liquid supply brush that contacts the upper surface of the metal wire, and is capable of driving the liquid supply brush to reciprocate along the axis of the metal wire and brushing a polymer solution for electrostatic ionization onto the surface of the metal wire. as well as The liquid supply assembly is capable of storing polymer solution and delivering the stored polymer solution to the liquid supply brush. The return tank is connected to the liquid supply assembly and is capable of collecting and returning the polymer solution dripping during the brushing process of the liquid supply brush on the surface of the metal wire to the liquid supply assembly.

2. The electrostatic ionization device according to claim 1, characterized in that: The ionization component has tension terminals symmetrically arranged at both ends of its top. One end of each tension terminal is connected to the corresponding end of the metal wire, and the other end is used to connect to an external power source.

3. The electrostatic ionization device according to claim 1, characterized in that: The bottom of the reflux tank is connected to a reflux pipe, and the end of the reflux pipe away from the reflux tank is connected to the liquid supply component. The height of the liquid supply component is less than the height of the bottom of the reflux tank.

4. The electrostatic ionization device according to claim 1, characterized in that: The reciprocating assembly further includes a reciprocating track and a drive module. The bottom of the liquid supply brush is movably connected to the reciprocating track, and the top of the liquid supply brush extends horizontally above the metal wire, and the top of the liquid supply brush is connected to the liquid supply assembly.

5. The electrostatic ionization device according to claim 4, characterized in that: The reciprocating assembly also includes a base, which is hollow inside and has a strip-shaped opening on one side; the base is fixedly installed at the bottom of the ionization assembly; the reciprocating track and the drive module are fixedly installed inside the base, and the bottom of the liquid supply brush extends horizontally into the base through the strip-shaped opening and is movably connected to the reciprocating track.

6. The electrostatic ionization device according to claim 4, characterized in that: The liquid supply brush has a circular hole at the top, and the bottom opening of the circular hole is located directly above the corresponding metal wire. The top of the circular hole is connected to a liquid supply pipe through a diversion pipe, and the end of the liquid supply pipe away from the diversion pipe is connected to the liquid supply assembly.

7. The electrostatic ionization device according to claim 6, characterized in that: The liquid supply assembly includes a liquid storage tank and a peristaltic pump. The liquid storage tank is capable of storing a polymer solution. The inlet of the peristaltic pump is connected to the inside of the liquid storage tank, and the outlet of the peristaltic pump is connected to the liquid supply pipe.

8. The electrostatic ionization device according to claim 6, characterized in that: Both the ionization component and the reciprocating component are made of polytetrafluoroethylene; both the liquid supply pipe and the diversion pipe are made of silicone tubing.

9. An array-type spinning ionization box, characterized in that: The device includes a housing, with multiple electrostatic ionization devices as described in any one of claims 1 to 8 arranged side by side at the bottom of the housing; a front conveying roller is provided at one end of the upper part of the housing, and a rear conveying roller is provided at the other end of the upper part of the housing, the front conveying roller and the rear conveying roller are used to convey fiber strips; the electrostatic ionization device can electrostatically ionize the polymer solution on the metal wire, and deposit it onto the surface and interior of the fiber strip under the action of an electric field, and form a nanoarray in situ on the surface of the fiber strip.

10. The array spinning ionization box according to claim 9, characterized in that: The overall height of the electrostatic ionization device is 20cm, the height of the box is between 0.5 and 2m, the width of the box is between 0.5 and 2m, and the distance between the front conveyor roller and the rear conveyor roller is between 0.5 and 3m.

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