An electrostatically assisted solution jet spinning device

Abstract

The utility model discloses an electrostatically assisted solution jet spinning device, including a connecting tube, a straight tube is fixedly connected to the bottom of the connecting tube, a through hole is opened at the bottom of the connecting tube, and the through hole is connected to the straight tube, and a reducing tube is arranged on the inner side of the straight tube; the outer surface of the straight tube is fixedly connected to a shell, and a self-locking drive component is fixedly installed on the inner wall of one side of the shell, and the movable end of the self-locking drive component is connected to a reduction transmission component. In the utility model, the inner diameter of the reducing tube can be changed by setting the straight tube, through hole, reducing tube, shell, self-locking drive component, reduction transmission component, two-way approaching component, movable frame and connecting plate, so as to change the inner diameter of the liquid outlet hole, so as to meet the actual production needs, and at the same time, it can also ensure the centrality of the liquid outlet hole, and the whole adopts electric drive, which can not only ensure the adjustment accuracy, but also facilitate the cooperation with the PLC control system to realize the dynamic adjustment of the inner diameter of the liquid outlet hole.

Description

Technical Field

[0001] The utility model relates to the technical field of electrostatic spinning, in particular to an electrostatically assisted solution jet spinning device. Background Art

[0002] Electrospinning is a special fiber manufacturing process in which a polymer solution or melt is jet-spun in a strong electric field. Under the action of the electric field, the droplet at the needle tip changes from a sphere to a cone, and fiber filaments are extended from the tip of the cone. This method can produce polymer filaments with nanometer diameters. Electrospinning has become one of the main ways to effectively prepare nanofiber materials due to its advantages such as simple manufacturing equipment, low spinning cost, a wide variety of spinnable materials, and controllable process. Electrospinning plays a huge role in biomedical materials, filtration and protection, catalysis, energy, optoelectronics, food engineering, cosmetics, etc.

[0003] In order to avoid frequent replacement of the nozzle to obtain electrostatic spinning of different diameters during the electrospinning process, the existing electrostatic assisted solution jet spinning device is provided with a fixed metal sheet and a movable metal sheet on the inner side of the nozzle, and then the distance between the two metal sheets is adjusted by the cooperation of a spring and a screw, so as to achieve the purpose of adjusting the size of the liquid outlet hole. However, in actual use, the spring arranged inside increases the liquid outlet resistance and is also prone to cause the liquid outlet hole to be blocked and difficult to clean. In addition, it is difficult to ensure the adjustment accuracy of the inner diameter of the liquid outlet hole by manual adjustment, and it is not conducive to cooperating with the PLC control system to realize dynamic adjustment of the spacing. Utility Model Content

[0004] The utility model is an electrostatically assisted solution jet spinning device proposed to solve the shortcomings in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an electrostatically assisted solution jet spinning device, comprising a connecting tube, a straight tube is fixedly connected to the bottom of the connecting tube, a through hole is opened at the bottom of the connecting tube, and the through hole is connected to the straight tube, and a reducer is provided on the inner side of the straight tube; the outer surface of the straight tube is fixedly connected to a shell, a self-locking drive component is fixedly installed on the inner wall of one side of the shell, and the movable end of the self-locking drive component is connected to a reduction transmission component; a two-way approaching component is installed inside the shell, and the two-way approaching component is connected to the reduction transmission component, and the two movable ends of the two-way approaching component are fixedly installed with movable frames, and the movable frames extend through the outer wall of the straight tube to the inside and are sealed and slidably connected thereto, and one end of the two movable frames is fixedly connected to a connecting plate, and the connecting plate is connected to the reducer.

[0006] Furthermore, the reducer includes a U-shaped metal bar, and the U-shaped metal bar is fixedly connected to two adjacent connecting plates, the top of the U-shaped metal bar is fixedly connected to a first closing plate, the inner surface of the U-shaped metal bar is slidably fitted with an arc-shaped metal bar, and the arc-shaped metal bar is fixedly connected to two adjacent connecting plates, and the top of the arc-shaped metal bar is fixedly connected to a second closing plate, which is conducive to adjusting the inner diameter of the liquid outlet.

[0007] Furthermore, the first closing plate and the second closing plate are both sealed and slidable with the bottom of the connecting tube, and the first closing plate and the second closing plate cooperate to partially block the through hole, ensuring that the solution can only be discharged through the reducer.

[0008] Furthermore, the self-locking drive assembly includes a motor, and the motor is fixedly mounted on an inner wall of one side of the shell, the driving end of the motor is fixedly connected to a worm, the outer surface of the worm is meshingly connected to a worm wheel, the worm wheel and the worm have a self-locking property, and the worm wheel cannot rotate when the worm does not rotate.

[0009] Furthermore, the reduction transmission assembly includes a large gear, and the large gear is rotatably mounted on an inner wall of one side of the shell, and a small gear is meshedly connected to one side of the outer surface of the large gear, which has a reduction effect, facilitates the motor to control the operation of the two-way approaching assembly, and improves the control accuracy.

[0010] Furthermore, the bidirectional approaching assembly includes a bidirectional screw rod, and the bidirectional screw rod is rotatably connected to the inner walls on both sides of the shell, the pinion gear is fixedly sleeved on the outer surface of the bidirectional screw rod, and the outer surface of the bidirectional screw rod is symmetrically threaded with two sliders, and the sliders are fixedly connected to the movable frame, so as to facilitate the control of the two movable frames to move closer or farther away from each other.

[0011] Furthermore, a filter screen is fixedly installed on the inner wall of the connecting cylinder, which can filter the solution entering the liquid outlet hole.

[0012] Beneficial effects of the utility model:

[0013] When the utility model is in use, the electrostatically assisted solution jet spinning device can change the inner diameter of the reducer through the arranged straight tube, through hole, reducer, shell, self-locking drive component, reduction transmission component, two-way approach component, movable frame and connecting plate, thereby changing the inner diameter of the liquid outlet hole to meet the actual production needs, while ensuring the centrality of the liquid outlet hole, and the overall electric drive is adopted, which can not only ensure the adjustment accuracy, but also is conducive to cooperating with the PLC control system to realize dynamic adjustment of the inner diameter of the liquid outlet hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 : A three-dimensional diagram of the utility model;

[0016] Figure 2 : A cross-sectional view of the utility model;

[0017] Figure 3 : Schematic diagram of the connection between the motor and the worm of the utility model;

[0018] Figure 4 :The utility model Figure 2 Enlarged view of point A in the middle.

[0019] The reference numerals are as follows:

[0020] 1. Connecting tube; 2. Straight tube; 3. Shell; 4. U-shaped metal strip; 5. Movable frame; 6. Bidirectional screw rod; 7. Slider; 8. Connecting plate; 9. Large gear; 10. Worm gear; 11. Worm; 12. Small gear; 13. Motor; 14. Second closing plate; 15. Arc-shaped metal strip; 16. Through hole; 17. First closing plate. DETAILED DESCRIPTION

[0021] 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.

[0022] like Figures 1 to 4As shown, it relates to an electrostatically assisted solution jet spinning device, including a connecting tube 1, a straight tube 2 is fixedly connected to the bottom of the connecting tube 1, a through hole 16 is opened at the bottom of the connecting tube 1, and the through hole 16 is communicated with the straight tube 2, a reducer is provided on the inner side of the straight tube 2, the reducer includes a U-shaped metal strip 4, and the U-shaped metal strip 4 is fixedly connected to two adjacent connecting plates 8, a first closed plate 17 is fixedly connected to the top of the U-shaped metal strip 4, an arc-shaped metal strip 15 is slidably fitted on the inner surface of the U-shaped metal strip 4, and the arc-shaped metal strip 15 is fixedly connected to the two adjacent connecting plates 8, a second closed plate 14 is fixedly connected to the top of the arc-shaped metal strip 15, the first closed plate 17 and the second closed plate 14 are both sealed and slidably connected to the bottom of the connecting tube 1, the hole formed between the U-shaped metal strip 4 and the arc-shaped metal strip 15 is a liquid outlet, and the size of the liquid outlet can be changed by moving the U-shaped metal strip 4 and the arc-shaped metal strip 15 relative to each other.

[0023] The outer surface of the straight tube 2 is fixedly connected to the shell 3, and a self-locking drive component is fixedly installed on the inner wall of one side of the shell 3. The movable end of the self-locking drive component is connected to the reduction transmission component. The self-locking drive component includes a motor 13, and the motor 13 is fixedly installed on the inner wall of one side of the shell 3. The driving end of the motor 13 is fixedly connected to a worm 11, and the outer surface of the worm 11 is meshed with a worm wheel 10. The reduction transmission component includes a large gear 9, and the large gear 9 is rotatably installed on the inner wall of one side of the shell 3. One side of the outer surface of the large gear 9 is meshed with a small gear 12. Shielding materials are used for the straight tube 2 and the shell 3 to avoid affecting the use of the motor 13. The motor 13 drives the worm 11 to rotate, and the large gear 9 can be driven to rotate through the worm wheel 10, and the large gear 9 drives the small gear 12 to rotate.

[0024] A two-way approaching assembly is installed inside the shell 3, and the two-way approaching assembly is connected to the reduction transmission assembly. The two movable ends of the two-way approaching assembly are fixedly installed with movable frames 5, and the movable frames 5 extend through the outer wall of the straight tube 2 to the inside and are sealed and slidably connected thereto. One end of the two movable frames 5 is fixedly connected with a connecting plate 8, and the connecting plate 8 is connected to the reducer. The two-way approaching assembly includes a two-way screw rod 6, and the two-way screw rod 6 is rotatably connected to the inner walls on both sides of the shell 3. The pinion 12 is fixedly sleeved on the outer surface of the two-way screw rod 6. Two sliders 7 are symmetrically threaded on the outer surface of the two-way screw rod 6, and the slider 7 is fixedly connected to the movable frame 5. When the two-way screw rod 6 rotates, it can drive the two sliders 7 to approach each other, thereby driving the two movable frames 5 to approach each other.

[0025] The inner wall of the connecting tube 1 is fixedly mounted with a filter screen, which has a filtering effect.

[0026] Working principle: When the inner diameter of the liquid outlet hole is required, the motor 13 drives the worm 11 to rotate, the worm 11 drives the large gear 9 to rotate through the worm wheel 10, the large gear 9 drives the small gear 12 to rotate, the small gear 12 drives the bidirectional screw 6 to rotate, thereby driving the two sliders 7 to approach each other, and then the movable frame 5 pushes the U-shaped metal strip 4 and the arc-shaped metal strip 15 to move relative to each other through the connecting plate 8 until the inner diameter of the liquid outlet hole reaches the required value.

[0027] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An electrostatically assisted solution jet spinning device, comprising a connecting cylinder (1), characterized in that: The bottom of the connecting tube (1) is fixedly connected to a straight tube (2), the bottom of the connecting tube (1) is provided with a through hole (16), and the through hole (16) is connected to the straight tube (2), and a reducing tube is provided inside the straight tube (2); The outer surface of the straight tube (2) is fixedly connected to a housing (3), a self-locking drive assembly is fixedly mounted on an inner wall of one side of the housing (3), and a reduction transmission assembly is connected to the movable end of the self-locking drive assembly; A two-way approaching assembly is installed inside the shell (3), and the two-way approaching assembly is connected to the reduction transmission assembly. The two movable ends of the two-way approaching assembly are fixedly installed with movable frames (5), and the movable frames (5) penetrate the outer wall of the straight pipe (2) to extend to the inside and are sealed and slidably connected thereto. One end of the two movable frames (5) is fixedly connected with a connecting plate (8), and the connecting plate (8) is connected to the reducer.

2. The electrostatically assisted solution jet spinning device according to claim 1, characterized in that: The reducer comprises a U-shaped metal strip (4), and the U-shaped metal strip (4) is fixedly connected to two adjacent connecting plates (8), and a first closing plate (17) is fixedly connected to the top of the U-shaped metal strip (4), and an arc-shaped metal strip (15) is slidably fitted on the inner surface of the U-shaped metal strip (4), and the arc-shaped metal strip (15) is fixedly connected to the two adjacent connecting plates (8), and a second closing plate (14) is fixedly connected to the top of the arc-shaped metal strip (15).

3. The electrostatically assisted solution jet spinning device according to claim 2, characterized in that: The first closing plate (17) and the second closing plate (14) both slide in a sealing manner with the bottom of the connecting cylinder (1).

4. The electrostatically assisted solution jet spinning device according to claim 1, characterized in that: The self-locking drive assembly comprises a motor (13), and the motor (13) is fixedly mounted on an inner wall of one side of the housing (3), a driving end of the motor (13) is fixedly connected to a worm (11), and an outer surface of the worm (11) is meshingly connected to a worm wheel (10).

5. The electrostatically assisted solution jet spinning device according to claim 4, characterized in that: The reduction transmission assembly comprises a large gear (9), and the large gear (9) is rotatably mounted on an inner wall of one side of the housing (3), and a small gear (12) is meshingly connected to one side of the outer surface of the large gear (9).

6. The electrostatically assisted solution jet spinning device according to claim 5, characterized in that: The bidirectional approaching assembly comprises a bidirectional screw rod (6), and the bidirectional screw rod (6) is rotatably connected to the inner walls on both sides of the housing (3), the pinion gear (12) is fixedly sleeved on the outer surface of the bidirectional screw rod (6), and two sliders (7) are symmetrically threadedly sleeved on the outer surface of the bidirectional screw rod (6), and the sliders (7) are fixedly connected to the movable frame (5).

7. The electrostatically assisted solution jet spinning device according to claim 1, characterized in that: A filter screen is fixedly mounted on the inner wall of the connecting cylinder (1).

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