Nanofiber pressing and fixing device for electrostatic spinning machine

Abstract

The utility model relates to the technical field of electrostatic spinning, and discloses a nanofiber pressing and fixing device for an electrostatic spinning machine, which comprises a shell, a through cavity is arranged in the shell, an electrode roller and a liquid spraying head are respectively arranged at the upper end and the lower end of the through cavity, and a positioning roller is arranged on one side of the shell; the cooling mechanism is located on one side of the shell, and the cooling mechanism comprises a protection mechanism, a wind power mechanism and a disassembly and assembly mechanism; according to the utility model, through the arrangement of the cooling mechanism, the pressed and fixed cloth can be rapidly cooled, so that the shape and the structure of fibers are more stable, the performance and the appearance of a final product are improved, and the situation that the mechanical properties (such as strength, rigidity and the like) of the fibers are possibly influenced if the fibers are not rapidly cooled and solidified at a high temperature is avoided; the problems that in an existing device, if cooling is not in time, a longer time is possibly needed to complete the curing process, so that the production efficiency is reduced, and the production cost is increased are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrospinning, in particular to a nano fiber pressing and consolidating device for an electrospinning machine. Background Technique

[0002] The nano fiber pressing and consolidating device for an electrospinning machine is a device used to process the nano fibers generated during the electrospinning process. The electrospinning technology can generate fibers with diameters in the nanometer range, and these fibers can be used in various applications, including filter materials, medical devices, and composite materials, etc. In order to ensure that these nano fibers can maintain their expected shape and structure, they need to be pressed and consolidated.

[0003] A Chinese patent with the publication number CN212741732U discloses a nano fiber pressing and consolidating device for an electrospinning machine. By setting a pressing roller mechanism, the pressing roller mechanism includes a supporting roller and a pressing roller. Convex lines are formed on the pressing roller surface of the pressing roller. The pressing roller can be driven by a pressing cylinder to contact the supporting roller. When the cloth with a nano fiber layer passes between the supporting roller and the pressing roller, the nano fiber layer in a fluffy state is partially pressed by the convex lines towards the supporting roller through the pressing cylinder, so that the nano fiber layer and the cloth are partially hooked to each other, thereby making the nano fiber layer and the cloth combined more firmly. However, the existing device is difficult to cool the pressed cloth during use, resulting in unstable fiber shape and structure, affecting the performance and appearance of the final product. Moreover, if the fibers cannot be quickly cooled and solidified at high temperature, their mechanical properties (such as strength, stiffness, etc.) may be affected. At the same time, if the cooling is not timely, it may take a longer time to complete the solidification process, thereby reducing production efficiency and increasing production costs. Content of the Utility Model

[0004] The purpose of the utility model is to provide a nano fiber pressing and consolidating device for an electrospinning machine, which solves the problem in the background technique that it is difficult to cool the pressed cloth, resulting in unstable fiber shape and structure, and affecting the performance and appearance of the final product.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A nano fiber pressing and consolidating device for an electrospinning machine, comprising:

[0007] A housing, a through cavity is opened inside the housing, an electrode roller and a coating head are respectively arranged at the upper and lower ends of the through cavity, and a positioning roller is installed on one side of the housing;

[0008] Cooling mechanism, the cooling mechanism is located on one side of the housing and is used to cool the pressed fabric. The cooling mechanism includes a protection mechanism, a wind power mechanism, and a disassembly and assembly mechanism. The wind power mechanism is located on one side of the housing and is used to generate wind power. The protection mechanism is located on the outer wall of the wind power mechanism and is used to protect the wind power mechanism. The disassembly and assembly mechanism is located inside the protection mechanism and is used to disassemble the protection mechanism.

[0009] Preferably, the wind power mechanism includes a reinforcement plate fixed on one side of the housing and a drive motor installed on one side of the reinforcement plate. The output end of the drive motor is connected with a transmission shaft, and the transmission shaft extends to one side of the reinforcement plate and is fixed with a plurality of evenly distributed fan blades.

[0010] Preferably, the protection mechanism includes a bearing installed on the outer wall of the transmission shaft and a first protective sleeve fixed on the outer wall of the bearing. A second protective sleeve is installed on one side of the first protective sleeve. Ventilation openings are provided inside both the second protective sleeve and the first protective sleeve. A connecting plate is fixed on one side of the first protective sleeve, and the connecting plate is fixed to the reinforcement plate.

[0011] Preferably, the disassembly and assembly mechanism includes a plurality of disassembly blocks fixed on one side of the second protective sleeve. A plurality of disassembly holes for the disassembly blocks to insert are provided on one side of the first protective sleeve, and a positioning mechanism for positioning one of the disassembly blocks is provided at the top of the first protective sleeve.

[0012] Preferably, an adjusting mechanism for adjusting the coating head up and down is provided on one side of the housing. The adjusting mechanism includes a receiving plate arranged at the bottom of the through cavity and a moving block fixed on one side of the receiving plate. The top of the receiving plate is connected to the bottom of the coating head. A moving rod is fixed on one side of the moving block. A moving groove for the moving block to move is provided on one side of the housing. A plug rod is fixed inside the moving groove, and the plug rod is inserted into the moving block. An extension box is fixed on one side of the housing. A threaded rod is installed inside the extension box. The outer wall of the threaded rod is screwed with the moving rod. An adjusting roller corresponding to the positioning roller is installed on one side of the receiving plate. A limiting mechanism for limiting the threaded rod is provided between the threaded rod and the extension box.

[0013] Preferably, the positioning mechanism includes an extension seat fixed on the top of the first protective sleeve and a cavity opened inside the extension seat. A positioning rod is inserted into the top of the first protective sleeve. The positioning rod extends into the cavity and is fixed with a baffle. A movable rod is fixed on the top of the baffle. The movable rod extends to the top of the extension seat and is fixed with a control sleeve. A spring is connected between the baffle and the cavity. The spring is sleeved on the outer wall of the movable rod. A positioning hole for the positioning rod to insert is provided inside the disassembly block.

[0014] Preferably, the limiting mechanism includes a rotating disk fixed to the top of the threaded rod and a rotating sleeve installed on the top of the extension box. A rotating shaft is installed on the top of the rotating sleeve, and a rotating plate is installed on the outer wall of the top of the rotating shaft. A limiting plate is fixed to one side of the rotating plate, and a limiting groove for inserting the limiting plate is formed on the outer wall of the rotating disk.

[0015] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows:

[0016] 1. Through the setting of the temperature reduction mechanism, the present utility model can rapidly cool the pressed fabric, making the fiber shape and structure more stable, improving the performance and appearance of the final product, and avoiding the situation where if the fiber fails to be rapidly cooled and cured at high temperature, its mechanical properties (such as strength, stiffness, etc.) may be affected. It solves the problem that in the existing device, if the temperature reduction is not timely, it may take a longer time to complete the curing process, thereby reducing production efficiency and increasing production costs.

[0017] 2. Through the setting of the adjustment mechanism, the present utility model can adjust the height of the liquid spraying head, which can help accurately control the thickness of the nanofiber membrane. By adjusting the height of the liquid spraying head, the distribution uniformity of the fibers on the substrate can be adjusted. At the same time, different heights of the liquid spraying head can affect the arrangement mode of the fibers, thereby optimizing the directionality and arrangement structure of the nanofibers and meeting the requirements of specific applications for the fiber direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the whole of the present utility model;

[0019] Figure 2 is a cross-sectional view of the whole of the present utility model;

[0020] Figure 3 is a schematic structural diagram of the adjustment mechanism of the present utility model;

[0021] Figure 4 is a cross-sectional view of the extension box of the present utility model;

[0022] Figure 5 is a schematic structural diagram of the temperature reduction mechanism of the present utility model;

[0023] Figure 6 is a cross-sectional view of the temperature reduction mechanism of the present utility model.

[0024] Among them: 1. Housing; 2. Adjustment mechanism; 3. Liquid coating head; 4. Temperature reduction mechanism; 5. Positioning roller; 6. Adjustment roller;

[0025] 21. Bearing plate; 22. Extension box; 23. Threaded rod; 24. Rotating plate; 25. Moving rod; 26. Rotating sleeve;

[0026] 41. Reinforcement plate; 42. Driving motor; 43. First protective sleeve; 44. Second protective sleeve; 45. Extension base; 46. Spring; 47. Fan blade. Detailed implementation manner

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figure 1 and Figure 2 , a nanofiber pressing and consolidating device for an electrospinning machine, comprising:

[0029] A housing 1, a through cavity is formed inside the housing 1, an electrode roller and a coating head 3 are respectively arranged at the upper and lower ends of the through cavity, and a positioning roller 5 is installed on one side of the housing 1.

[0030] Please refer to Figure 1 , Figure 5 and Figure 6, a cooling mechanism 4. The cooling mechanism 4 is located on one side of the housing 1 and is used to cool the pressed fabric. The cooling mechanism 4 includes a protective mechanism, a wind mechanism, and a disassembly and assembly mechanism. The wind mechanism is located on one side of the housing 1 and is used to generate wind. The protective mechanism is located on the outer wall of the wind mechanism and is used to protect the wind mechanism. The disassembly and assembly mechanism is located inside the protective mechanism and is used to disassemble the protective mechanism. The wind mechanism includes a reinforcement plate 41 fixed to one side of the housing 1 and a drive motor 42 installed on one side of the reinforcement plate 41. The output end of the drive motor 42 is connected to a transmission shaft. The transmission shaft extends to one side of the reinforcement plate 41 and is fixed with a plurality of evenly distributed fan blades 47. The protective mechanism includes a bearing installed on the outer wall of the transmission shaft and a first protective sleeve 43 fixed to the outer wall of the bearing. A second protective sleeve 44 is installed on one side of the first protective sleeve 43. Ventilation openings are provided inside both the first protective sleeve 43 and the second protective sleeve 44. A connecting plate is fixed to one side of the first protective sleeve 43. The connecting plate is fixed to the reinforcement plate 41. The disassembly and assembly mechanism includes a plurality of disassembly blocks fixed to one side of the second protective sleeve 44. A plurality of disassembly holes for the disassembly blocks to insert are provided on one side of the first protective sleeve 43. And a positioning mechanism for positioning one of the disassembly blocks is provided at the top of the first protective sleeve 43. The positioning mechanism includes an extension seat 45 fixed to the top of the first protective sleeve 43 and a cavity provided inside the extension seat 45. A positioning rod is inserted into the top of the first protective sleeve 43. The positioning rod extends into the cavity and is fixed with a baffle. A movable rod is fixed to the top of the baffle. The movable rod extends to the top of the extension seat 45 and is fixed with a control sleeve. A spring 46 is connected between the baffle and the cavity. The spring 46 is sleeved on the outer wall of the movable rod. A positioning hole for the positioning rod to insert is provided inside the disassembly block.

[0031] The drive motor 42 drives the transmission shaft to start rotating. The rotation of the transmission shaft drives the fan blades 47 to rotate. Through the settings of the first protective sleeve 43 and the second protective sleeve 44, the fan blades 47 can be effectively protected during the rotation process, avoiding the situation that the external structure contacts the fan blades 47 and causes damage to the fan blades 47. Through the rotation of the fan blades 47, wind is generated. Through the generation of wind, the pressed fabric can be effectively cooled.

[0032] When it is necessary to disassemble the second protective sleeve 44, first pull the control sleeve to drive the movable rod to move. The movement of the movable rod drives the baffle to move. The movement of the baffle drives the spring 46 to contract. Through the contraction of the spring 46, the positioning rod moves. Through the movement of the positioning rod, it is separated from the positioning hole. After the mutual separation of the positioning rod and the positioning hole, pull the second protective sleeve 44 to drive the plurality of disassembly blocks to move. Through the movement of the plurality of disassembly blocks, they are separated from the first protective sleeve 43, thus completing the disassembly operation of the second protective sleeve 44.

[0033] Please also refer toFigure 2 , Figure 3 and Figure 4 , on one side of the housing 1, there is a regulating mechanism 2 for adjusting the coating head 3 up and down. The regulating mechanism 2 includes a receiving plate 21 arranged at the bottom of the through cavity and a moving block fixed on one side of the receiving plate 21. The top of the receiving plate 21 is connected to the bottom of the coating head 3. A moving rod 25 is fixed on one side of the moving block. A moving groove for the moving block to move is formed on one side of the housing 1. A plug rod is fixed inside the moving groove, and the plug rod is inserted into the moving block. An extension box 22 is fixed on one side of the housing 1. A threaded rod 23 is installed inside the extension box 22. The outer wall of the threaded rod 23 is screwed with the moving rod 25. An adjusting roller 6 corresponding to the positioning roller 5 is installed on one side of the receiving plate 21. A limiting mechanism for limiting the threaded rod 23 is arranged between the threaded rod 23 and the extension box 22. The limiting mechanism includes a rotating disk fixed on the top of the threaded rod 23 and a rotating sleeve 26 installed on the top of the extension box 22. A rotating shaft is installed on the top of the rotating sleeve 26. A rotating plate 24 is installed on the outer wall of the top of the rotating shaft. A limiting plate is fixed on one side of the rotating plate 24. A limiting groove for the limiting plate to insert is formed on the outer wall of the rotating disk.

[0034] When it is necessary to adjust the height of the coating head 3, first rotate the rotating plate 24 to drive the limiting plate to move. Through the movement of the limiting plate, it is separated from the limiting groove. After the mutual separation of the limiting plate and the limiting groove, rotate the rotating disk to drive the threaded rod 23 to rotate. Through the rotation of the threaded rod 23, the moving rod 25 is driven to move on its outer wall. Through the movement of the moving rod 25, the moving block is driven to move. Through the movement of the moving block, the receiving plate 21 is driven to move. Through the movement of the receiving plate 21, the coating head 3 is driven to move synchronously. Through the movement of the coating head 3, the distance between it and the electrode roller can be effectively adjusted, so that the uniformity of the fibers on the substrate can be adjusted.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A nanofiber pressing device for an electrostatic spinning machine, characterized in that: include: A shell (1), wherein a through cavity is provided inside the shell (1), an electrode roller and a coating head (3) are respectively provided at the upper and lower ends of the through cavity, and a positioning roller (5) is installed on one side of the shell (1); A cooling mechanism (4), the cooling mechanism (4) is located on one side of the shell (1) and is used to cool the fabric after compaction, the cooling mechanism (4) comprises a protection mechanism, a wind force mechanism and a disassembly mechanism, the wind force mechanism is located on one side of the shell (1) and is used to generate wind force, the protection mechanism is located on the outer wall of the wind force mechanism and is used to protect the wind force mechanism, and the disassembly mechanism is located inside the protection mechanism and is used to disassemble the protection mechanism.

2. The nanofiber pressing device for an electrospinning machine according to claim 1, characterized in that: The wind power mechanism comprises a reinforcement plate (41) fixed to one side of a housing (1) and a drive motor (42) mounted on one side of the reinforcement plate (41); an output end of the drive motor (42) is connected to a transmission shaft, and the transmission shaft extends to one side of the reinforcement plate (41) and is fixed with a plurality of evenly distributed fan blades (47).

3. The nanofiber pressing device for an electrospinning machine according to claim 2, characterized in that: The protective mechanism comprises a bearing mounted on the outer wall of the transmission shaft and a first protective sleeve (43) fixed to the outer wall of the bearing, a second protective sleeve (44) is mounted on one side of the first protective sleeve (43), ventilation holes are provided inside the second protective sleeve (44) and the first protective sleeve (43), a connecting plate is fixed on one side of the first protective sleeve (43), and the connecting plate is fixed to the reinforcing plate (41).

4. The nanofiber pressing device for an electrostatic spinning machine according to claim 3, characterized in that: The disassembly and assembly mechanism comprises a plurality of disassembly blocks fixed to one side of the second protective sleeve (44), a plurality of disassembly holes for inserting the disassembly blocks are provided on one side of the first protective sleeve (43), and a positioning mechanism for positioning one of the disassembly blocks is provided on the top of the first protective sleeve (43).

5. The nanofiber pressing device for an electrostatic spinning machine according to claim 1, characterized in that: A regulating mechanism (2) for adjusting the coating head (3) up and down is arranged on one side of the shell (1), and the regulating mechanism (2) comprises a receiving plate (21) arranged at the bottom of the through cavity and a moving block fixed on one side of the receiving plate (21), the top of the receiving plate (21) is connected to the bottom of the coating head (3), a moving rod (25) is fixed on one side of the moving block, a moving groove for the moving block to move is opened on one side of the shell (1), a plug rod is fixed inside the moving groove, and the plug rod is plugged into the moving block, an expansion box (22) is fixed on one side of the shell (1), a threaded rod (23) is installed inside the expansion box (22), and the outer wall of the threaded rod (23) is screwed to the moving rod (25), an adjusting roller (6) corresponding to the positioning roller (5) is installed on one side of the receiving plate (21), and a limiting mechanism for limiting the threaded rod (23) is arranged between the threaded rod (23) and the expansion box (22).

6. The nanofiber pressing device for an electrostatic spinning machine according to claim 4, characterized in that: The positioning mechanism comprises an extension seat (45) fixed on the top of the first protective sleeve (43) and a cavity opened inside the extension seat (45); a positioning rod is inserted into the top of the first protective sleeve (43); the positioning rod extends to the inside of the cavity and is fixed with a baffle; a movable rod is fixed on the top of the baffle; the movable rod extends to the top of the extension seat (45) and is fixed with a control sleeve; a spring (46) is connected between the baffle and the cavity; the spring (46) is sleeved on the outer wall of the movable rod; a positioning hole for inserting the positioning rod is opened inside the disassembly block.

7. The nanofiber pressing device for an electrostatic spinning machine according to claim 5, characterized in that: The limiting mechanism comprises a rotating disk fixed on the top of the threaded rod (23) and a rotating sleeve (26) installed on the top of the expansion box (22); a rotating shaft is installed on the top of the rotating sleeve (26); a rotating plate (24) is installed on the outer wall of the top of the rotating shaft; a limiting plate is fixed on one side of the rotating plate (24); and a limiting groove is provided on the outer wall of the rotating disk for the limiting plate to be inserted into.

Images