A melt electrospinning system

Abstract

The utility model discloses a melt electrostatic spinning system, including a material tube, a cover plate fixed on the top of the material tube, a feed head and an electrostatic electrode arranged on the cover plate, a material tube lower connector arranged at the bottom of the material tube, a mounting head arranged at the lower part of the material tube lower connector, a mounting head connecting ring sleeved on the material tube lower connector and the mounting head and fixing the mounting head, a plurality of nozzles arranged on the mounting head, a ceramic insulating tube sleeved on the outer side of the material tube and the mounting head connecting ring, a mica top plate, a heat-insulating top plate, an insulating top plate, a heater and an insulating bottom plate sleeved on the outer side of the ceramic insulating tube from top to bottom in sequence, and a furnace shell; the outer edges of the mica top plate, the heat-insulating top plate, the insulating top plate and the insulating bottom plate are fixed on the inner wall of the furnace shell; the nozzle is connected to the inside of the material tube and the material tube lower connector. Through the above scheme, the utility model has the advantages of simple structure and reliable protection.

Description

Technical Field

[0001] The utility model relates to the technical field of spinning, in particular to a melt electrostatic spinning system. Background Art

[0002] Electrospinning is a special fiber manufacturing process in which polymer solutions or melts are jet-spun in a strong electric field. Electrospinning is a special form of electrostatic atomization of polymer fluids. At this time, the atomized substances are not tiny droplets, but polymer micro-jets that can run for a considerable distance and eventually solidify into fibers.

[0003] At present, the electrospinning equipment in the prior art is such as the Chinese invention patent "Patent Publication No.: CN115627545A, Name: An electrospinning device and electrospinning nozzle control method thereof", which includes a spinning nozzle mechanism, a feeding mechanism, a power supply assembly and an air jet mechanism. The spinning nozzle mechanism includes a housing, a sliding frame, a mounting plate and a nozzle arranged on the mounting plate, the nozzle includes a spinneret arranged in an array at the bottom of the mounting plate and a sleeve sleeved on the spinneret, the spinneret is arranged at the bottom of the spinneret, and a plurality of spinneret holes are arranged at equal angles on the bottom plate of the split chamber of the spinneret, and a wind flow plate is arranged on the bottom plate of the split chamber corresponding to the position of each spinneret hole, so that the spinning liquid can be ejected smoothly and evenly, and multiple threads of a single spinneret can be ejected, and multiple spinnerets at the bottom of the mounting plate can synchronously eject multiple fiber threads.

[0004] Another example is the Chinese utility model with patent publication number: CN216688435U, name: Melt differential electrospinning pre-oriented filament continuous preparation device, which includes a spinning system, a fiber guiding system, a bundling system, an oiling system and a collecting roller, wherein the fiber guiding system includes an air compressor, a plasma generator, a first-stage suction duct, a bracket, a second-stage suction duct and a second-stage suction duct fixing device, the bundling system includes a trumpet-shaped suction ring, a third-stage suction duct, a fourth-stage suction duct and a plastic pipe, and the oiling system includes an oil nozzle, an oil pump, an oil storage tank and an oil pump motor.

[0005] Although the above technologies all mention the use of high voltage electric field (or high voltage static electricity), it is not possible to reliably isolate the static electricity of the equipment. The spinning parts are directly connected to the shell, which will inevitably cause static electricity to adhere to the shell.

[0006] Therefore, there is an urgent need to propose a melt electrospinning system with simple structure and reliable protection. Utility Model Content

[0007] In view of the above problems, the purpose of the present invention is to provide a melt electrospinning system. The technical solution adopted by the present invention is as follows:

[0008] A melt electrostatic spinning system comprises a material tube, a cover plate fixed on the top of the material tube, a feed head and an electrostatic electrode arranged on the cover plate, a material tube lower connector arranged at the bottom of the material tube, a mounting head arranged at the lower part of the material tube lower connector, a mounting head connecting ring sleeved on the material tube lower connector and the mounting head and fixing the mounting head, a plurality of nozzles arranged on the mounting head, a ceramic insulating tube sleeved on the outer side of the material tube and the mounting head connecting ring, a mica top plate, a heat-insulating top plate, an insulating top plate, a heater and an insulating bottom plate sleeved on the outer side of the ceramic insulating tube from top to bottom in sequence, and a furnace shell; the outer edges of the mica top plate, the heat-insulating top plate, the insulating top plate and the insulating bottom plate are fixed on the inner wall of the furnace shell; the nozzle is connected with the inside of the material tube and the material tube lower connector; a wire outlet hole is arranged at the bottom of the insulating bottom plate; and the nozzle is placed on the upper part of the wire outlet hole.

[0009] Furthermore, a furnace upper end plate is arranged on the top of the furnace shell; the furnace upper end plate is pressed on the mica top plate.

[0010] Furthermore, a furnace body mounting bracket is installed on the furnace body shell.

[0011] Furthermore, a clamp is provided on the cover plate and the material pipe.

[0012] Furthermore, a lower sealing gasket is provided between the lower connecting head of the material pipe and the mounting head.

[0013] Furthermore, a first material cavity is provided in the material pipe; a second material cavity and a third material cavity are provided in the lower connecting head of the material pipe; and the first material cavity, the second material cavity and the third material cavity are connected in sequence from top to bottom.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] (1) The utility model provides an insulating bottom plate, a ceramic insulating tube, an insulating top plate, a heat insulating top plate and a mica top plate, and insulates the material tube, thereby effectively preventing static electricity from entering the furnace shell and the heater, and the insulation isolation is reliable.

[0016] (2) The utility model sets a heater outside the ceramic insulating tube and inside the furnace shell to heat the material tube. In addition, the utility model sets a heat-insulating top plate and an insulating bottom plate to keep the material tube and the inside of the ceramic insulating tube warm.

[0017] In summary, the utility model has the advantages of simple structure and reliable protection, and has high practical value and promotion value in the field of spinning technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope of protection. For those skilled in the art, other relevant drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a schematic structural diagram of the utility model from a first angle.

[0020] Figure 2 It is a structural schematic diagram of the utility model from a second angle.

[0021] Figure 3 It is a schematic diagram of the structure of the utility model without the furnace shell.

[0022] Figure 4 It is a cross-sectional schematic diagram of the utility model.

[0023] Figure 5 It is a partially enlarged schematic diagram of the utility model.

[0024] In the above drawings, the component names corresponding to the reference numerals are as follows:

[0025] 1. Furnace mounting bracket; 2. Furnace shell; 3. Insulating bottom plate; 4. Heater; 5. Ceramic insulating tube; 6. Insulating top plate; 7. Insulating top plate; 8. Mica top plate; 9. Furnace upper end plate; 10. Material pipe; 11. Material pipe lower connector; 12. Mounting head connecting ring; 13. Mounting head; 14. Nozzle; 15. Cover plate; 16. Feed head; 17. Electrostatic electrode; 18. Clamp; 19. Lower sealing gasket; 31. Wire outlet hole; 51. First material cavity; 111. Second material cavity; 112. Third material cavity. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of this application clearer, the utility model is further described below in conjunction with the accompanying drawings and embodiments, and the implementation methods of this utility model include but are not limited to the following embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0027] In this embodiment, the term "and / or" is merely a term used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent three situations: A exists alone, A and B exist at the same time, and B exists alone.

[0028] The terms "first" and "second" in the description and claims of this embodiment are used to distinguish different objects rather than to describe a specific order of objects. For example, a first target object and a second target object are used to distinguish different target objects rather than to describe a specific order of target objects.

[0029] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0030] In the description of the embodiments of the present application, unless otherwise specified, the meaning of "multiple" refers to two or more than two. For example, multiple processing units refer to two or more processing units; multiple systems refer to two or more systems.

[0031] like Figures 1 to 5 As shown, this embodiment provides a melt electrospinning system, which includes a furnace shell 2, a furnace mounting bracket 1 arranged on the furnace shell 2, a furnace upper end plate 9, a mica top plate 8, a heat-insulating top plate 7, an insulating top plate 6, a heater 4 and an insulating bottom plate 3 installed in the furnace shell 2 from bottom to top, a ceramic insulating tube 5 arranged in the furnace upper end plate 9, the mica top plate 8, the heat-insulating top plate 7, the insulating top plate 6, the heater 4 and the insulating bottom plate 3, and a material tube 10 arranged in the ceramic insulating tube 5, The cover plate 15 is fixed on the top of the material tube 10, the feed head 16 and the electrostatic electrode 17 are arranged on the cover plate 15, the material tube lower connector 11 is arranged at the bottom of the material tube 10, the mounting head 13 is arranged at the lower part of the material tube lower connector 11, the mounting head connecting ring 12 is sleeved on the material tube lower connector 11 and the mounting head 13 and fixes the mounting head 13, a plurality of nozzles 14 are arranged on the mounting head 13, and a lower sealing gasket 19 is arranged between the material tube lower connector 11 and the mounting head 13. Among them, a clamp 18 is arranged on the cover plate 15 and the material tube 10. A wire outlet hole 31 is arranged at the bottom of the insulating bottom plate 3, and the nozzle 14 is placed on the upper part of the wire outlet hole 31.

[0032] In this embodiment, the nozzle 14 is connected to the inside of the material pipe 10 and the lower connecting head 11 of the material pipe. That is, a first material chamber 51 is provided in the material pipe 10, and a second material chamber 111 and a third material chamber 112 are provided in the lower connecting head 11 of the material pipe. The first material chamber 51, the second material chamber 111 and the third material chamber 112 are connected in sequence from top to bottom, and are connected to the nozzle 14.

[0033] In this embodiment, 50 kV of static electricity is applied to the static electrode 17, and the ceramic insulating tube 5, the insulating top plate 6, and the insulating bottom plate 3 are used for insulation isolation. In addition, the feed head 16 is used for feeding, and the heater 4 is used for heating the spinning. Finally, the nozzle 14 is used for spinning under the action of static electricity.

[0034] The above embodiments are only preferred embodiments of the present utility model and are not intended to limit the protection scope of the present utility model. Any changes that adopt the design principles of the present utility model and are made through non-creative labor on this basis should fall within the protection scope of the present utility model.

Claims

1. A melt electrospinning system, characterized in that: The invention comprises a material pipe (10), a cover plate (15) fixed on the top of the material pipe (10), a feed head (16) and an electrostatic electrode (17) arranged on the cover plate (15), a material pipe lower connecting head (11) arranged at the bottom of the material pipe (10), a mounting head (13) arranged below the material pipe lower connecting head (11), a mounting head connecting ring (12) sleeved on the material pipe lower connecting head (11) and the mounting head (13) and fixing the mounting head (13), a plurality of nozzles (14) arranged on the mounting head (13), and a ceramic insulating tube (16) sleeved on the outer sides of the material pipe (10) and the mounting head connecting ring (12). 5), a mica top plate (8), a heat-insulating top plate (7), an insulating top plate (6), a heater (4) and an insulating bottom plate (3) which are sequentially sleeved on the outer side of a ceramic insulating tube (5) from top to bottom, and a furnace shell (2); the outer edges of the mica top plate (8), the heat-insulating top plate (7), the insulating top plate (6) and the insulating bottom plate (3) are fixed on the inner wall of the furnace shell (2); the nozzle (14) is connected to the inside of a material pipe (10) and a lower connector (11) of the material pipe; a wire outlet hole (31) is provided at the bottom of the insulating bottom plate (3); and the nozzle (14) is placed on the upper part of the wire outlet hole (31).

2. A melt electrospinning system according to claim 1, characterized in that: A furnace body upper end plate (9) is arranged on the top of the furnace body shell (2); the furnace body upper end plate (9) is pressed on the mica top plate (8).

3. A melt electrospinning system according to claim 1 or 2, characterized in that: A furnace body mounting bracket (1) is mounted on the furnace body shell (2).

4. A melt electrospinning system according to claim 1 or 2, characterized in that: A clamp (18) is provided on the cover plate (15) and the material pipe (10).

5. A melt electrospinning system according to claim 1, characterized in that: A lower sealing gasket (19) is provided between the lower connecting head (11) of the material pipe and the mounting head (13).

6. A melt electrospinning system according to claim 1 or 2, characterized in that: A first material chamber (51) is provided in the material pipe (10); a second material chamber (111) and a third material chamber (112) are provided in the lower connecting head (11) of the material pipe; the first material chamber (51), the second material chamber (111) and the third material chamber (112) are connected in sequence from top to bottom.

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