Magnetic stirring liquid supply device for electrostatic spinning production line

Abstract

A magnetic stirring liquid supply device for an electrostatic spinning production line is used in the field of electrostatic spinning production of micro-nano fibers. The spinning solution supply assembly is connected with the electrostatic spinning spraying assembly through a high-pressure generator and a spinning solution propulsion pump in sequence, and the spinning solution supply assembly is composed of a solution storage vessel, a vessel cup holder support, a PE plastic cover plate, a magnetic stirrer, a solution inlet hole, a recovery hole and an external control cabinet; a spinning solution is pulled up and refined in a high-voltage electric field of the high-voltage generator through the electrostatic spinning and spinning assembly, is solidified along with evaporation of a spinning solution solvent, and is deposited on the fiber receiving plate. The device is simple in structure, convenient to operate and excellent in functional particle dispersion effect, can be digitally and automatically controlled, and avoids the phenomena of agglomeration, sedimentation, layering and the like of functional particles such as inorganic oxides, metal oxides, functional nano-powder and microcapsules in a spinning solution due to the surface characteristics of the functional particles; the convenience and the applicability of the production of the micro-nano fibers with the electrostatic spinning function are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrospinning production technical field, specifically is a kind of magnetic stirring liquid supply device for electrospinning production line. BACKGROUND

[0002] Electrospinning technology is a kind of efficient, convenient production technology for preparing functional nanofiber, and has become an important direction of functional textile research at home and abroad. Its production principle is that under the action of high-voltage electric field, spinning solution is pushed through spinning liquid propelling pump, passes through electrospinning jet assembly and fiber receiving plate, and under the action of electric field force, ultra-fine and functional micro-nano fiber is formed by overcoming the tension of solution interface and van der waals force between molecules. The main components in its production process include spinning liquid supply assembly, spinning liquid propelling pump, high-voltage generator, electrospinning jet assembly and fiber receiving plate.

[0003] In product development and application, the research of functional spinning solution usually uses functional particles such as inorganic oxide, metal oxide, functional nano-powder and microcapsule, so as to give the fiber certain special function. However, these functional particles are prone to agglomeration, sedimentation and stratification due to their own surface characteristics, which is not conducive to jetting and function release. Therefore, it is particularly important to develop a magnetic stirring liquid supply device with online stirring function and meeting the use conditions of industrial production. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the purpose of the present application is to provide a magnetic stirring liquid supply device for electrospinning production line to solve the technical problems of easy sedimentation and uneven dispersion of functional particles in the existing functional spinning solution.

[0005] In order to achieve the above-mentioned purpose of the application, the spinning liquid supply assembly of the magnetic stirring liquid supply device for electrospinning production line is connected with the high-voltage generator, the spinning liquid propelling pump and the electrospinning jet assembly in sequence, and the spinning liquid supply assembly is composed of liquid storage vessel, vessel cup support bracket, PE plastic cover plate, magnetic stirrer, liquid inlet hole, recovery hole and external control cabinet. The spinning solution is refined by the high-voltage electric field of the high-voltage generator through the electrospinning jet assembly, solidified with the evaporation of spinning liquid solvent, and deposited on the fiber receiving plate.

[0006] Further, the liquid storage vessel of the spinning liquid supply assembly is placed on the vessel cup support bracket, the magnetic stirrer is installed below the vessel cup support bracket, and the control system of the magnetic stirrer is connected with the external control cabinet. The magnetic stirring speed and stirring time of the magnetic stirrer are adjusted through the external control cabinet, so that the functional spinning solution in the liquid storage vessel is continuously stirred, and the inorganic oxide, metal oxide, functional nano-powder and microcapsule functional particles are uniformly dispersed.

[0007] Further, the spinning solution supply assembly is provided with multiple stirring stations to meet the simultaneous production and use of spinning solutions with different functions.

[0008] Further, the base of the utensil cup holder support is made of stainless steel and is integrated with the magnetic stirrer, the utensil cup holder support is made of glass and is fixed on the base through a limiting groove, a PE plastic cover plate is arranged above the utensil cup holder support to prevent the spinning solution from being polluted by the outside during production, and the top of the PE plastic cover plate is provided with a liquid inlet hole and a recovery hole.

[0009] Further, the power cord at the bottom of the magnetic stirrer is connected with the power end of the high-voltage generator, and the spinning solution propelling pump and the electrospinning jet assembly are connected with the liquid storage utensil through a rubber hose.

[0010] Further, the magnetic stirrer is internally provided with a salient pole type shielded motor to provide stirring magnetic force for the liquid storage utensil.

[0011] Further, the external control cabinet is provided with a control knob for controlling the stirring magnetic force and time of the magnetic stirrer.

[0012] Compared with the prior art, the magnetic stirring solution supply device for realizing uniform dispersion of easily-settled materials in the production process through electromagnetic stirring is provided by integrating the magnetic stirring technology and the electrospinning technology, and a new idea of forming micro-nano fibers by electrospinning device for easily-settled functional particles such as inorganic oxides, metal oxides, functional nano powders and microcapsules is provided. The utility model has the advantages of simple structure, convenient operation, excellent dispersion effect of functional particles, digital automatic control, avoidance of agglomeration, settlement and stratification of inorganic oxides, metal oxides, functional nano powders and microcapsules in the spinning solution due to their surface characteristics, and great improvement of the convenience and applicability of electrospinning functional micro-nano fiber production. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to make the content of the utility model more easily understood clearly, the utility model is further described in detail below according to specific embodiments and in combination with the drawings, in which:

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is Figure 1 a structure schematic of the spinning solution supply assembly.

[0016] In the diagram: 1. Spinning solution supply assembly; 2. Spinning solution propulsion pump; 3. High-pressure generator; 4. Electrostatic spinning spinneret assembly; 5. Fiber receiving plate; 6. Liquid storage container; 7. Container cup holder; 8. Magnetic stirrer; 9. External control cabinet; 10. PE plastic cover; 11. Liquid inlet; 12. Recovery port. Detailed Implementation

[0017] To make the invention's objectives, technical solutions, and advantages clearer, the present invention will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of protection of the present invention.

[0018] like Figure 1 , Figure 2 As shown, the magnetic stirring liquid supply device for the electrospinning production line of this utility model mainly consists of a spinning liquid supply component 1, a spinning liquid propulsion pump 2, a high-voltage generator 3, an electrospinning spinneret component 4, and a fiber receiving plate 5. The spinning liquid supply component 1 is connected to the electrospinning spinneret component 4 in sequence via the high-voltage generator 3 and the spinning liquid propulsion pump 2. The spinning liquid supply component 1 mainly includes a liquid storage container 6, a container cup holder 7, a PE plastic cover plate 10, a magnetic stirrer 8, a liquid inlet 11, a recovery port 12, and an external control cabinet 9. During the electrospinning process, the magnetic stirrer 8 adjusts the magnetic stirring speed and stirring time through the external control cabinet 9, so that the functional spinning solution in the liquid storage vessel 6 is continuously stirred, so as to achieve uniform dispersion of functional particles such as inorganic oxides, metal oxides, functional nanopowders, and microcapsules. The spinning solution is extruded by the action of the spinning solution propulsion pump 2. The spinning solution is stretched and refined in the high voltage electric field of the high voltage generator 3 through the electrospinning spinneret 4, and solidified with the evaporation of the spinning solution solvent, and deposited on the fiber receiving plate 5 to form micro-nano functional fibers.

[0019] Preferably, the spinning solution supply assembly 1 has dual stirring stations, which can meet the simultaneous production and use of spinning solutions with different functional formulations. The liquid storage vessel 6 of the spinning solution supply assembly 1 is placed on the vessel cup holder 7. The liquid storage vessel 6 can be a 50ml-1000ml glass beaker. The magnetic stirrer 8 is installed below the vessel cup holder 7, and the control system of the magnetic stirrer 8 is connected to the external control cabinet 9. The base of the vessel cup holder 7 is made of stainless steel and is integrated with the magnetic stirrer 8. The vessel cup holder 7 is made of glass and is fixed to the base by a limiting groove. A PE plastic cover 10 is provided on the top of the vessel cup holder 7 to prevent the spinning solution from being contaminated by the outside during production. The top of the PE plastic cover 10 has an inlet hole 11 and a recovery hole 12. The spinning solution flows from the liquid storage vessel 6 into the electrostatic spinning spinneret 4 through the inlet rubber hose and the spinning solution propulsion pump 2. Excess spinning solution in the electrospinning spinneret 4 is recycled back into the storage container 6 via a rubber hose. The power cord at the bottom of the magnetic stirrer 8 is connected to the power terminal of the high-voltage generator 3. The spinning solution propulsion pump 2 and the electrospinning spinneret 4 are connected to the storage container 6 via rubber hoses. The magnetic stirrer 8 has a built-in salient-pole shaded-pole motor, which can provide stirring magnetic force to the storage container 6. The speed of the magnetic stirrer 8 can be adjusted from 0 to 1500 r / min via the speed adjustment knob on the external control cabinet. The magnetic stirrer 8 can adjust the magnetic stirring speed and stirring time via the external control cabinet 9, so that the functional spinning solution in the storage container 6 is continuously stirred, achieving uniform dispersion of inorganic oxides, metal oxides, functional nanopowders, and microcapsule functional particles.

[0020] In the electrospinning process of this invention, a prepared electrospinning solution containing easily settling functional particles is loaded into a storage container 6. One end of the inlet rubber hose and the return rubber hose are inserted into the storage container 6 through the inlet hole 11 and the return hole 12, respectively. The other ends of the inlet rubber hose and the return rubber hose are connected to the spinning solution propulsion pump 2 and the electrospinning spinneret 4, respectively. The power supply of the electrospinning equipment is turned on, and the stirring parameters of the magnetic stirrer 8 motor are set to 200 r / min-600 r / min. The spinning solution is stirred and, after being stirred evenly, the flow rate of the spinning solution propulsion pump 2 is set to 0.1 r / min-3 r / min. The electrospinning device starts supplying liquid, and the voltage parameters of the high-voltage generator 3 are set to 30 kV-60 kV. The spinning solution is stretched and refined in the high-voltage electric field by the electrospinning spinneret 4, and solidifies as the spinning solution solvent evaporates, depositing on the fiber receiving plate 5, ultimately forming uniformly dispersed micro-nano fibers.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A magnetic stirring liquid supply device for electrospinning production line, characterized in that: The spinning solution supply assembly (1) of the magnetic stirring liquid supply device is connected with the high-voltage generator (3), the spinning solution propelling pump (2) and the electrostatic spinning nozzle assembly (4) in sequence, and the spinning solution supply assembly (1) is composed of a liquid storage vessel (6), a vessel cup support bracket (7), a PE plastic cover plate (10), a magnetic stirrer (8), a liquid inlet hole (11), a recovery hole (12) and an external control cabinet (9); the spinning solution is refined in the high-voltage electric field of the high-voltage generator (3) through the electrostatic spinning nozzle assembly (4), solidified with the evaporation of the spinning solution solvent, and deposited on the fiber receiving plate (5).

2. The magnetic stirring liquid supply device for electrospinning production line according to claim 1, characterized in that: The liquid storage vessel (6) of the spinning solution supply assembly (1) is placed on the vessel cup support bracket (7), the magnetic stirrer (8) is installed below the vessel cup support bracket (7), and the control system of the magnetic stirrer (8) is connected with the external control cabinet (9); the magnetic stirrer (8) adjusts the magnetic stirring speed and stirring time through the external control cabinet (9) to continuously stir the functional spinning solution in the liquid storage vessel (6), and realizes the uniform dispersion of inorganic oxides, metal oxides, functional nanometer powders and microcapsule functional particles.

3. The magnetic stirring liquid supply device for electrospinning production line according to claim 1, characterized in that: The spinning solution supply assembly (1) is provided with multiple stirring stations that can meet the simultaneous production and use of spinning solutions with different functional formulations.

4. The magnetic stirring liquid supply device for electrospinning production line according to claim 1, characterized in that: The base of the vessel cup support bracket (7) is made of stainless steel and is integrated with the magnetic stirrer (8), the vessel cup support bracket (7) is made of glass and is fixed on the base through a limiting groove, a PE plastic cover plate (10) is arranged above the vessel cup support bracket (7) to prevent the spinning solution from being polluted by the outside during production, and the top of the PE plastic cover plate (10) is provided with a liquid inlet hole (11) and a recovery hole (12).

5. The magnetic stirring liquid supply device for electrospinning production line according to claim 1, characterized in that: The power cord at the bottom of the magnetic stirrer (8) is connected with the power supply end of the high-voltage generator (3), and the spinning solution propelling pump (2) and the electrostatic spinning nozzle assembly (4) are connected with the liquid storage vessel (6) through a rubber hose.

6. The magnetic stirring liquid supply device for electrospinning production line according to claim 1, characterized in that: The magnetic stirrer (8) is internally provided with a salient pole type shield motor that provides stirring magnetic force for the liquid storage vessel (6).

7. The magnetic stirring liquid supply device for electrospinning production line according to claim 1, characterized in that: The external control cabinet (9) is provided with a control knob for controlling the stirring magnetic force and time of the magnetic stirrer (8).

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