阅读说明：本技术 一种基于毛细管原理的静电纺丝喷头结构及其使用方法 (Electrostatic spinning spray head structure based on capillary principle and using method thereof ) 是由 王小健 于 2021-09-14 设计创作，主要内容包括：本发明提供了一种基于毛细管原理的静电纺丝喷头结构及其使用方法,包括储液桶,安装在储液桶顶部的分流盒,分流盒的顶部安装有导流筒；分流盒的中部设有贯穿上下壁面的插筒,分流盒的顶面设有多个出气孔,出气孔与分流盒内部连通,分流盒的侧壁连通设有供气管、用以与外部高压供气设备连通；储液桶的底部连通设有供液管及排液管,且供液管的管径大于排液管的管径；导流筒的内部设有挥发结构,挥发结构的底部贯穿插筒、伸入储液桶的内部,挥发结构的上部为树状结构、且分支上安装有多个海胆状的喷头；其结构新颖,采用无针头结构,使用方法简单,可防止喷头堵塞的问题,也可有效的增大纺丝溶液的扩散面,提高纺丝纤维的产率和质量。(The invention provides an electrostatic spinning spray head structure based on a capillary principle and a using method thereof, wherein the electrostatic spinning spray head structure comprises a liquid storage barrel and a shunting box arranged at the top of the liquid storage barrel, and a guide cylinder is arranged at the top of the shunting box; the middle part of the shunting box is provided with an inserting cylinder penetrating through the upper wall surface and the lower wall surface, the top surface of the shunting box is provided with a plurality of air outlet holes, the air outlet holes are communicated with the inside of the shunting box, and the side wall of the shunting box is communicated with an air supply pipe and is used for being communicated with external high-pressure air supply equipment; the bottom of the liquid storage barrel is communicated with a liquid supply pipe and a liquid discharge pipe, and the pipe diameter of the liquid supply pipe is larger than that of the liquid discharge pipe; the inside of the draft tube is provided with a volatilization structure, the bottom of the volatilization structure penetrates through the insertion tube and extends into the liquid storage barrel, the upper part of the volatilization structure is of a tree-shaped structure, and a plurality of sea urchin-shaped spray heads are arranged on branches; the novel spinning solution spreading device is novel in structure, adopts a needle-free structure, is simple in use method, can prevent the problem of nozzle blockage, can effectively increase the spreading surface of the spinning solution, and improves the yield and quality of spinning fibers.)

1. The utility model provides an electrostatic spinning shower nozzle structure based on capillary principle which characterized in that:

the device comprises a liquid storage barrel and a shunting box arranged at the top of the liquid storage barrel, wherein a guide cylinder is arranged at the top of the shunting box;

the middle part of the shunting box is provided with an inserting cylinder penetrating through the upper wall surface and the lower wall surface, the top surface of the shunting box is provided with a plurality of air outlet holes, the air outlet holes are communicated with the inside of the shunting box, and the side wall of the shunting box is communicated with an air supply pipe and is used for being communicated with external high-pressure air supply equipment; the bottom of the liquid storage barrel is communicated with a liquid supply pipe and a liquid discharge pipe, and the pipe diameter of the liquid supply pipe is larger than that of the liquid discharge pipe;

the inside of draft tube is equipped with the structure of volatilizing, and the bottom of the structure of volatilizing runs through the inside of inserting the section of thick bamboo, stretching into the stock solution bucket, and the upper portion of the structure of volatilizing is tree structure, and installs the shower nozzle of a plurality of sea urchins forms on the branch.

2. An electrospinning nozzle structure according to claim 1, wherein:

the volatilization structure comprises an insertion rod, a plurality of branches are fixedly arranged on the side wall of the upper part of the insertion rod, a plurality of branches are arranged on the side wall of each branch to form a tree-shaped structure, and a plurality of sea urchin-shaped spray heads are arranged on each branch.

3. An electrospinning nozzle structure according to claim 2, wherein:

the diameter of the inserted rod is matched with that of the inserted cylinder, and the inserted rod expands after absorbing the solution and forms interference fit with the inserted cylinder.

4. An electrospinning nozzle structure according to claim 3, wherein:

the shower nozzle includes the spheroid, and fixed a plurality of conical heads of locating the spheroid outer wall, a plurality of conical heads use spheroidal centre of sphere as the center, along spheroidal sphere evenly distributed.

5. An electrospinning nozzle structure according to claim 4, wherein:

the bottom inner wall of stock solution bucket corresponds the fixed support section of thick bamboo that is equipped with of a section of thick bamboo, and the internal diameter of a support section of thick bamboo and the bottom diameter adaptation of inserted bar support the fixed bulge loop that is equipped with of inner wall of a section of thick bamboo, and the bottom of inserted bar is supported and is held in the top surface of bulge loop, and the bottom lateral wall of a support section of thick bamboo is equipped with the through-hole, and the bottom of inserted bar is carried out the bulge loop and is maked somebody a mere figurehead, and through-hole and outside intercommunication.

6. An electrospinning nozzle structure according to claim 5, wherein:

the inserted link is fixedly sleeved with a vibration ring which is positioned above the shunting box.

7. An electrospinning nozzle structure according to claim 1, wherein:

a first convex pipe is fixedly arranged at the outer edge of the bottom surface of the flow distribution box, threads are arranged on the inner wall of the first convex pipe, and the outer diameter of the top of the liquid storage barrel is matched with the inner diameter of the first convex pipe in a threaded connection and sealing fit manner;

the outer edge of the top surface of the flow distribution box is fixedly provided with a second convex pipe, the inner wall of the second convex pipe is provided with threads, and the outer diameter of the bottom of the guide cylinder is matched with the inner diameter of the second convex pipe in a threaded connection and sealing way.

8. A method of using the electrostatic spinning nozzle structure based on the capillary principle according to claim 6, wherein: the method comprises the following steps:

s1, supplying high-pressure gas into the flow dividing box through the gas supply pipe by high-pressure gas supply equipment, and blowing the high-pressure gas upwards through the gas outlet hole to form gas flow;

s2, a booster pump supplies spinning solution into the liquid storage barrel through a liquid supply pipe, the spinning solution flows back to the liquid storage box through a liquid discharge pipe to form circulating liquid supply, and a volatilization structure absorbs the spinning solution in the liquid storage barrel and sends the spinning solution to the top to be diffused through a spray head;

and S3, the vibration belt drives the volatilization structure to vibrate, so that the spinning solution is separated from the volatilization structure in a small droplet form, is further drafted and refined under the drive of an air flow, and is sent out from the top of the guide cylinder.

9. The method of using an electrospinning nozzle structure according to claim 8, wherein:

in the step S1, the flow rate of the gas introduced into the shunting box is between 0.1L/min and 20L/min; the flow rate of the gas discharged from the gas outlet is between 0.1L/min and 10L/min.

10. The method of using an electrospinning nozzle structure according to claim 8, wherein:

in step S2, according to the air pressure detected by the air pressure sensor installed inside the liquid storage barrel, the difference between the inflow and outflow of the liquid storage barrel is controlled by coordinating the first flow valve on the liquid supply pipe and the second flow valve on the liquid discharge pipe, so as to control the pressure inside the liquid storage barrel and maintain the air pressure at 0.1-0.5 Mpa; the inflow rate is 100 to 200ml/h, and the outflow rate is 50 to 100 ml/h.

Technical Field

The invention relates to the field of needleless electrospinning fibers, in particular to an electrospinning nozzle structure based on a capillary principle and a using method thereof.

Background

Electrostatic spinning is a special form of high-molecular jet electrostatic atomization, and along with the continuous development of nanotechnology, electrostatic spinning becomes one of the current research hotspots because nano-scale fibers can be prepared by electrostatic spinning. However, the existing electrostatic spinning technology for preparing the nano-fiber has certain technical problems, such as low yield and large-scale application difficulty, and the development of the high-efficiency electrostatic spinning technology becomes the only effective way for solving the problem. Among them, the development of high-efficiency electrostatic spinning nozzles is one of the most direct and effective technical solutions for improving the electrostatic spinning efficiency. At present, electrostatic spinning shower nozzle can be divided into two types of syringe needle and no syringe needle, and the electrostatic spinning shower nozzle that has the syringe needle is owing to receive the restriction of syringe needle quantity, and often production efficiency is low, and the syringe needle very easily blocks up at spinning in-process, therefore develops no syringe needle electrostatic spinning shower nozzle and is the important research direction of realizing large-scale industrial production.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide an electrostatic spinning nozzle structure based on the capillary principle and a using method thereof, the electrostatic spinning nozzle structure is novel in structure, adopts a needle-free structure, can effectively prevent the nozzle from being blocked, and can effectively increase the diffusion surface of a spinning solution, thereby effectively improving the yield and the quality of spinning fibers.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides an electrostatic spinning spray head structure based on a capillary tube principle, which comprises a liquid storage barrel, a shunting box arranged at the top of the liquid storage barrel, and a guide cylinder arranged at the top of the shunting box; the middle part of the shunting box is provided with an inserting cylinder penetrating through the upper wall surface and the lower wall surface, the top surface of the shunting box is provided with a plurality of air outlet holes, the air outlet holes are communicated with the inside of the shunting box, and the side wall of the shunting box is communicated with an air supply pipe and is used for being communicated with external high-pressure air supply equipment; the bottom of the liquid storage barrel is communicated with a liquid supply pipe and a liquid discharge pipe, and the pipe diameter of the liquid supply pipe is larger than that of the liquid discharge pipe; the inside of draft tube is equipped with the structure of volatilizing, and the bottom of the structure of volatilizing runs through the inside of inserting the section of thick bamboo, stretching into the stock solution bucket, and the upper portion of the structure of volatilizing is tree structure, and installs the shower nozzle of a plurality of sea urchins forms on the branch.

In a preferred technical scheme of the invention, the volatilization structure comprises an insertion rod, a plurality of branches are fixedly arranged on the side wall of the upper part of the insertion rod, a plurality of branches are arranged on the side wall of each branch to form a tree-shaped structure, and a plurality of sea urchin-shaped spray heads are arranged on each branch.

In a preferred technical scheme of the invention, the diameter of the insertion rod is matched with that of the insertion cylinder, and the insertion rod expands after absorbing solution and forms interference fit with the insertion cylinder.

In a preferred technical scheme of the invention, the spray head comprises a sphere and a plurality of conical heads fixedly arranged on the outer wall of the sphere, wherein the conical heads are uniformly distributed along the spherical surface of the sphere by taking the spherical center of the sphere as the center.

In a preferred technical scheme of the invention, a supporting cylinder is fixedly arranged on the inner wall of the bottom of the liquid storage barrel corresponding to the inserting cylinder, the inner diameter of the supporting cylinder is matched with the diameter of the bottom end of the inserting rod, a convex ring is fixedly arranged on the inner wall of the supporting cylinder, the bottom end of the inserting rod abuts against the top surface of the convex ring, a through hole is formed in the side wall of the bottom of the supporting cylinder, and the bottom end of the inserting rod is overhead by the convex ring and is communicated with the outside through the through hole.

In a preferred technical scheme of the invention, the inserted link is fixedly sleeved with a vibration ring, and the vibration ring is positioned above the shunting box.

In a better technical scheme of the invention, a first convex pipe is fixedly arranged at the outer edge of the bottom surface of the flow distribution box, threads are arranged on the inner wall of the first convex pipe, and the outer diameter of the top of the liquid storage barrel is matched with the inner diameter of the first convex pipe in a threaded connection and sealing fit manner; the outer edge of the top surface of the flow distribution box is fixedly provided with a second convex pipe, the inner wall of the second convex pipe is provided with threads, and the outer diameter of the bottom of the guide cylinder is matched with the inner diameter of the second convex pipe in a threaded connection and sealing way.

The invention also provides a using method of the electrostatic spinning spray head structure based on the capillary principle, which comprises the following steps:

s1, supplying high-pressure gas into the flow dividing box through the gas supply pipe by high-pressure gas supply equipment, and blowing the high-pressure gas upwards through the gas outlet hole to form gas flow;

s2, a booster pump supplies spinning solution into the liquid storage barrel through a liquid supply pipe, the spinning solution flows back to the liquid storage box through a liquid discharge pipe to form circulating liquid supply, and a volatilization structure absorbs the spinning solution in the liquid storage barrel and sends the spinning solution to the top to be diffused through a spray head;

and S3, the vibration belt drives the volatilization structure to vibrate, so that the spinning solution is separated from the volatilization structure in a small droplet form, is further drafted and refined under the drive of an air flow, and is sent out from the top of the guide cylinder.

Further, in the step S1, the flow rate of the gas introduced into the shunting box is between 0.1L/min and 20L/min; the flow rate of the gas discharged from the gas outlet is between 0.1L/min and 10L/min.

Further, in step S2, according to the air pressure value detected by the air pressure sensor installed inside the liquid storage barrel, the difference between the inflow amount and the outflow amount of the liquid storage barrel is controlled by coordinating the first flow valve on the liquid supply pipe and the second flow valve on the liquid discharge pipe, so as to control the pressure inside the liquid storage barrel to maintain the air pressure at 0.1-0.5 Mpa; the inflow rate is 100 to 200ml/h, and the outflow rate is 50 to 100 ml/h.

The invention has the beneficial effects that:

the invention provides an electrostatic spinning spray head structure based on a capillary tube principle and a using method thereof, the structure is novel, the spray head structure comprises a liquid storage barrel, a flow distribution box, a flow guide barrel and a volatilization structure for absorbing and dispersing spinning solution, wherein the liquid storage barrel, the flow distribution box and the flow guide barrel are sequentially connected and matched from bottom to top; the upper part of the volatilization structure is of a tree structure, and a plurality of sea urchin-shaped spray heads are arranged on the branches, so that the dispersion of the spinning solution can be facilitated; the design of the flow distribution box can be matched with external high-pressure air supply equipment to blow airflow to the tree-shaped structure part, so that the spinning solution is promoted to be drawn and refined; overall structure's design and cooperation adopt no syringe needle structure, can effectively prevent the problem that the shower nozzle blockked up, and the diffusion face that can effectual increase spinning solution to effectively improve the fibrous productivity of spinning and quality.

Drawings

FIG. 1 is a schematic structural diagram of an electrostatic spinning nozzle structure based on the capillary principle according to an embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic structural view of a showerhead provided in an embodiment of the present invention;

fig. 4 is a schematic diagram of an electrostatic spinning nozzle structure based on the capillary principle according to an embodiment of the present invention.

In the figure:

100. a liquid storage barrel; 110. a liquid supply tube; 120. a liquid discharge pipe; 130. a support cylinder; 131. a convex ring; 132. a through hole; 200. a shunt box; 210. inserting a cylinder; 220. an air outlet; 230. a gas supply pipe; 240. a first male pipe; 250. a second male pipe; 300. a draft tube; 400. a volatile structure; 410. a spray head; 411. a sphere; 412. a conical head; 420. inserting a rod; 430. branches; 440. branches; 500. a vibrating ring; 600. a liquid storage tank; 610. a booster pump; 620. a first flow valve; 630. a second flow valve; 700. a high pressure gas supply device; 800. an air pressure sensor.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

As shown in fig. 1 to 4, in the embodiment of the present invention, an electrostatic spinning nozzle structure based on the capillary principle is disclosed, which includes a liquid storage barrel 100, a flow distribution box 200 installed on the top of the liquid storage barrel 100, a guide cylinder 300 installed on the top of the flow distribution box 200, and a detachable structure is adopted, which is convenient for production, processing and assembly; the middle part of the shunting box 200 is provided with an inserting cylinder 210 penetrating through the upper wall surface and the lower wall surface, the top surface of the shunting box 200 is provided with a plurality of air outlet holes 220, the air outlet holes 220 are communicated with the inside of the shunting box 200, the side wall of the shunting box 200 is communicated with an air supply pipe 230 and is used for being communicated with external high-pressure air supply equipment, and supplied high-pressure air is shunted by the shunting box to form multi-point high-pressure air flow which is blown upwards; the bottom of the liquid storage barrel 100 is communicated with a liquid supply pipe 110 and a liquid discharge pipe 120, and the pipe diameter of the liquid supply pipe 110 is larger than that of the liquid discharge pipe 120; the inside of draft tube 300 is equipped with volatilizees structure 400, and the bottom of volatilizing structure 400 runs through the inside of inserting a section of thick bamboo 210, stretching into liquid storage barrel 100, absorbs and the guide to spinning solution, and the upper portion of volatilizing structure 400 is tree-like structure, and installs the shower nozzle 410 of a plurality of sea urchins forms on the branch to spinning solution carries out quick giving off and drips, forms to stretch to draw into the silk with high-pressure draught.

The electrostatic spinning spray head structure based on the capillary tube principle and the using method thereof have novel structures, and comprise a liquid storage barrel, a flow distribution box, a flow guide barrel and a volatilization structure for absorbing and dispersing spinning solution, wherein the liquid storage barrel, the flow distribution box and the flow guide barrel are sequentially connected and matched from bottom to top; the upper part of the volatilization structure is of a tree structure, and a plurality of sea urchin-shaped spray heads are arranged on the branches, so that the dispersion of the spinning solution can be facilitated; the design of the flow distribution box can be matched with external high-pressure air supply equipment to blow airflow to the tree-shaped structure part, so that the spinning solution is promoted to be drawn and refined; overall structure's design and cooperation adopt no syringe needle structure, can effectively prevent the problem that the shower nozzle blockked up, and the diffusion face that can effectual increase spinning solution to effectively improve the fibrous productivity of spinning and quality.

Further, the volatilization structure 400 comprises an insertion rod 420, a plurality of branches 430 are fixedly arranged on the upper side wall of the insertion rod 420, a plurality of branches 440 are arranged on the side wall of the branches 430 to form a tree-shaped structure, and a plurality of sea urchin-shaped spray heads 410 are arranged on each branch 440.

Further, the diameter of the insertion rod 420 is matched with that of the insertion barrel 210, and the insertion rod 420 expands after absorbing the solution and forms an interference fit with the insertion barrel 210, so that a certain clamping effect is formed on the volatilization structure, and the volatilization structure is prevented from being easily loosened.

Further, the nozzle 410 comprises a sphere 411 and a plurality of conical heads 412 fixedly arranged on the outer wall of the sphere 411, the conical heads 412 are uniformly distributed along the spherical surface of the sphere 411 with the center of the sphere 411 as the center, and the structural design can further enlarge the distribution area of the spinning solution and accelerate the solution distribution; and when the spinning solution moves to the conical head part, a dripping state can be better formed, and spinning fibers can be conveniently formed along with high-pressure airflow in a follow-up manner.

Furthermore, the inner wall of the bottom of the liquid storage barrel 100 is fixedly provided with a support barrel 130 corresponding to the insert barrel 210, the inner diameter of the support barrel 130 is matched with the diameter of the bottom end of the insert rod 420, the bottom end of the insert rod can be supported and limited, and the insert rod expands after absorbing the solution and forms interference fit with the support barrel, so that the clamping connection of the insert rod can be further strengthened; the fixed bulge loop 131 that is equipped with of inner wall of a support section of thick bamboo 130, the bottom of inserted bar 420 supports the top surface of holding in bulge loop 131, and the bottom lateral wall of a support section of thick bamboo 130 is equipped with through-hole 132, and the bottom of inserted bar 420 is carried out the bulge loop 131 and is maked somebody a mere figurehead, and through-hole 132 and outside intercommunication, this structural design can make the bottom inner wall and the inside intercommunication of stock solution bucket of a support section of thick bamboo, ensures that spinning solution can contact with the bottom of inserted bar, carries out effectual transmission.

Furthermore, the liquid supply pipe is communicated with the center of the bottom of the liquid storage barrel, corresponds to and is communicated with the position of the supporting barrel, and the spinning solution supplied by the liquid supply pipe enters the inside of the supporting barrel and then flows out from the through hole to form effective flowing and contact; and, this structural design can make into the spinning solution who supplies increase the impact force when through the through-hole blowout to further stir the inside spinning solution of liquid storage bucket, flow with higher speed, the absorption and the guide of convenient structure of volatilizing.

Further, the insert rod 420 is fixedly sleeved with a vibration ring 500, and the vibration ring 500 is located above the diversion box 200; the mechanical vibration that the vibrations ring produced causes the structure that volatilizees to carry out high-frequency vibration for spinning solution breaks away from the structure that volatilizees with the form of droplet, also can strengthen the capillary effect of the structure that volatilizees, promotes absorption and drainage, and then effectively improves holistic spinning shaping efficiency and quality.

Further, a first convex pipe 240 is fixedly arranged at the outer edge of the bottom surface of the flow distribution box 200, threads are arranged on the inner wall of the first convex pipe 240, and the outer diameter of the top of the liquid storage barrel 100 is matched with the inner diameter of the first convex pipe 240 in a threaded connection and sealing fit manner; the outer edge of the top surface of the diversion box 200 is fixedly provided with a second convex pipe 250, the inner wall of the second convex pipe 250 is provided with threads, and the outer diameter of the bottom of the guide cylinder 300 is matched with the inner diameter of the second convex pipe 250 in a threaded connection and sealing fit manner; the structure design can facilitate the connection and the cooperation among the guide cylinder, the flow distribution box and the liquid storage barrel, and the use and the operation are convenient.

Furthermore, the diameter of the top of the guide cylinder is larger than that of the bottom of the guide cylinder, so that air flow can be conveniently discharged, and the spinning wire drawing can be conveniently floated.

The invention also provides a using method of the electrostatic spinning spray head structure based on the capillary principle, which comprises the following steps:

s1, supplying high-pressure gas into the flow dividing box through the gas supply pipe by the high-pressure gas supply equipment 700, and blowing the high-pressure gas upwards through the gas outlet holes to form gas flow;

s2, a booster pump 610 supplies spinning solution into the liquid storage barrel through a liquid supply pipe, the spinning solution flows back to the liquid storage box 600 through a liquid discharge pipe to form circulating liquid supply, and a volatilization structure absorbs the spinning solution in the liquid storage barrel and sends the spinning solution to the top to be diffused through a spray head;

and S3, the vibration belt drives the volatilization structure to vibrate, so that the spinning solution is separated from the volatilization structure in a small droplet form, is further drafted and refined under the drive of an air flow, and is sent out from the top of the guide cylinder.

Further, in the step S1, the flow rate of the gas introduced into the shunting box is between 0.1L/min and 20L/min; the flow rate of the gas discharged through the gas outlet is between 0.1L/min and 10L/min, and the supplied gas flow is ensured to be maintained in a proper range so as to facilitate the forming and the sending of the spinning wire drawing.

Further, in step S2, according to the air pressure value detected by the air pressure sensor 800 installed inside the liquid storage barrel, the difference between the inflow and outflow of the liquid storage barrel is controlled by coordinating the first flow valve 620 on the liquid supply pipe and the second flow valve 630 on the liquid discharge pipe, so as to control the pressure inside the liquid storage barrel, so that the air pressure is maintained at 0.1-0.5 Mpa, and the absorption and drainage of the spinning solution by the volatilization structure are promoted by the air pressure difference with the external space, thereby further improving the capillary effect; the inflow rate is 100 to 200ml/h, and the outflow rate is 50 to 100 ml/h.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.