Conjugated electrostatic spinning equipment

By designing a conjugated electrospinning device including elastic attracting strips and automatic retraction mechanisms, the problem of manual operation of fiber guidance in the prior art is solved, and the operation safety is improved and the automatic guidance of fibers is realized.

CN222499486UActive Publication Date: 2025-02-18王逸丹
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Patent Information

Application Number
CN202421341803.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-12
Publication Date
2025-02-18
Estimated Expiration
2034-06-12

AI Technical Summary

Technical Problem

In the existing conjugated electrospinning technology, the fibers are guided to the receiving unit of the receiving device, and the operational safety is poor.

Method used

A conjugated electrospinning device is designed, including a receiving device, which consists of a bracket, a receiving unit, a suction strip and a cylinder. The suction strip has elastic deformation ability. Through the cooperation of the fluid and elastic members in the cylinder, the suction strip gradually guides the fibers to the receiving unit during the automatic retraction process.

Benefits of technology

Automatic guidance of the fibers is realized on the receiving unit, improving operational safety and reducing the risk of manual operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses conjugate electrostatic spinning equipment, and belongs to the technical field of nano-micron fiber materials. The device mainly comprises a receiving device, the receiving device comprises a support, a receiving unit, a suction strip and a cylinder body, the receiving unit is of a round roller type structure connected to the support, the interior of the receiving unit extends in the circumferential direction of the receiving unit to form a containing channel, the cylinder body is installed in the receiving unit, the interior of the cylinder body is hollow to form a cavity, and the cavity is filled with fluid; at least part of the suction strip has elastic deformation capacity, the initial form of the suction strip is flat and straight, the suction strip is provided with a ball body, the ball body on the suction strip is contained in the cylinder body, a through-flow gap is formed between the outer wall of the ball body and the side wall of the cavity, and the suction strip is contained in the containing channel along the extending path of the containing channel. And an elastic piece II is arranged in the cavity of the cylinder body. According to the conjugate electrostatic spinning equipment, the operation safety can be improved during conjugate spinning.
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Description

Technical Field

[0001] The utility model relates to the technical field of nano-micron fiber materials, in particular to a conjugate electrostatic spinning device. Background Art

[0002] High-voltage electrospinning technology is a method of preparing nano-micron fiber materials by using the breakdown effect of high-voltage electrostatic fields on polymer solutions. The basic principle is to apply an electrostatic field of tens of thousands of volts between the injection device and the receiving device to form a jet from the conical end of the spinning solution, which is stretched in the electric field, and finally forms non-woven nano- or micron-scale fibers on the receiving device.

[0003] Conjugate spinning involves placing two jet devices with opposite polarity power supplies opposite to each other. During the electrospinning process, the fibers are respectively charged with positive and negative charges, and are attracted and entangled with each other in the air. The fibers are then guided to the receiving unit of the receiving device. However, in the prior art, guiding the fibers to the receiving unit of the receiving device requires manually holding a stick to attract the fibers that are attracted and entangled with each other in front of the jet device and connect them to the receiving unit of the receiving device below, resulting in poor operational safety.

[0004] Therefore, it is necessary to provide a new conjugated electrospinning device. Utility Model Content

[0005] Based on the above problems existing in the prior art, the purpose of the embodiments of the utility model is to provide a conjugate electrospinning device, which can improve the operational safety during conjugate spinning.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a conjugate electrospinning device, including a receiving device, the receiving device includes a bracket, a receiving unit, an attraction bar and a cylinder body, the receiving unit is a round roller structure connected to the bracket, the interior of the receiving unit is provided with a receiving channel extending along the circumferential direction of the receiving unit, the cylinder body is installed in the receiving unit, the cylinder body is hollow to form a chamber, the chamber is filled with fluid, at least part of the attraction bar has elastic deformation ability, and the initial form of the attraction bar is straight, a sphere is provided on the attraction bar, the sphere on the attraction bar is received in the cylinder body, and there is a flow gap between the outer wall of the sphere and the side wall of the chamber, the attraction bar is retracted in the receiving channel along the extension path of the receiving channel, an elastic member 2 is provided in the chamber of the cylinder body and between the sphere and the cylinder body, the elastic member 2 always applies an elastic force to the sphere to resist the attraction bar from being pulled out of the receiving channel from the outside of the receiving unit, and the part of the attraction bar moved out of the receiving channel will automatically restore to the straight guide end under the action of the elastic force.

[0007] Furthermore, one end of the cylinder body is closed, and the other end of the cylinder body is provided with a through hole only for the attraction strip to penetrate.

[0008] Furthermore, the portion of the attraction strip close to the cylinder body has rigidity.

[0009] Furthermore, the second elastic member is a helical spring that can be axially extended and retracted.

[0010] Furthermore, a lubricating layer is provided between the attraction strip and the receiving channel.

[0011] Furthermore, the cylinder body is an arc-shaped structure.

[0012] Furthermore, a window communicating with the receiving channel is provided on the outer peripheral wall of the receiving unit.

[0013] Furthermore, the receiving unit includes roller one and roller two, and roller one and roller two can be coaxially matched to form a round roller structure of a complete receiving unit. An end face of roller one opposite to roller two is provided with groove one, and an end face of roller two opposite to roller one is provided with groove two. When roller one and roller two are coaxially matched in place, groove one and groove two are aligned and matched to form the receiving channel.

[0014] Furthermore, the receiving device also includes a rotating shaft, and the receiving unit is rotatably connected to the bracket via the rotating shaft.

[0015] The beneficial effects of the utility model are as follows: the conjugate electrospinning device provided by the utility model includes a receiving device, which includes a bracket, a receiving unit, an attraction bar and a cylinder body. The receiving unit is a round roller structure connected to the bracket. The interior of the receiving unit is provided with a receiving channel extending along the circumferential direction of the receiving unit. The cylinder body is installed in the receiving unit. The cylinder body is hollow to form a chamber, and the chamber is filled with fluid. At least part of the attraction bar has elastic deformation ability, and the initial form of the attraction bar is straight. A sphere is provided on the attraction bar, and the sphere on the attraction bar is received in the cylinder body, and there is a flow gap between the outer wall of the sphere and the side wall of the chamber. The attraction bar is received and released in the receiving channel along the extension path of the receiving channel. An elastic member 2 is provided in the chamber of the cylinder body and between the sphere and the cylinder body. The elastic member 2 always applies an elastic force to the sphere to resist the attraction bar from being pulled out of the receiving channel from the outside of the receiving unit, so that when the attraction bar is pulled out of the receiving channel from the outside of the receiving unit, the part of the attraction bar that moves out of the receiving channel will automatically restore to the straight guide end under the action of the elastic force, and the guide end of the attraction bar The end extends to the outside of the receiving unit, so that it is easy to approach the fibers that are attracted and embraced together in the air, and because the elastic member 2 will push the ball to move in the chamber along the extension path of the cylinder body, the attraction bar is driven to retract into the receiving channel, and because during the movement of the ball in the cylinder body, the fluid in the chamber and on the side close to the ball will flow to the chamber on the side away from the ball through the flow gap. Due to the viscosity of the fluid, the flow volume of the small flow gap, and the pressure imbalance of the space inside the chamber and between the two sides of the ball, the movement of the ball in the chamber is hindered, thereby slowing down the retraction of the attraction bar. In this way, before the electrostatic spinning device starts working, at least part of the attraction bar can be pulled out first to form a guiding end close to the injection device outside the receiving unit. Subsequently, when the electrostatic spinning device is working, the attraction bar slowly retracts, and there is enough time for the fibers to gather and entangle on the guiding end. At the same time, during the retraction of the attraction bar, the fibers are slowly pulled close to the peripheral side of the receiving unit, and then the receiving unit is started to rotate to complete the guiding work of the fibers to the receiving unit. No manual operation is required, and the safety is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the receiving device provided in an embodiment of the utility model, and shows a state of the attraction strip.

[0018] Figure 2 A partially exploded schematic diagram of a receiving device provided in an embodiment of the utility model.

[0019] Figure 3 for Figure 1 Left side view of the receiving device shown.

[0020] Figure 4 For along Figure 3 A cross-sectional view along the EE direction, showing a state of the receiving device.

[0021] Figure 5 for Figure 4 A magnified schematic diagram of area A in the middle.

[0022] Figure 6 for Figure 4 A schematic diagram of another state of the receiving device is shown.

[0023] Figure 7 for Figure 4 A schematic diagram of another state of the receiving device is shown.

[0024] Figure 8 This is a schematic diagram of an exploded view of a receiving roller provided in an embodiment of the utility model.

[0025] Fig. 9 for Figure 8 Schematic diagram from another perspective.

[0026] Fig.10 This is a front view of the receiving device provided in an embodiment of the utility model.

[0027] Fig.11 For along Fig.10 Cross-sectional view in the FF direction.

[0028] Fig.12 A three-dimensional structural schematic diagram of a receiving roller provided in an embodiment of the utility model, wherein another state of the attraction strip is shown.

[0029] Fig.13 for Fig.12 A front view of the receiving roller is shown.

[0030] Fig.14 For along Fig.13 A cross-sectional view along the GG direction, in which the elastic member 2 is omitted.

[0031] Among them, the figure marks in the figure are: 1, bracket; 11, driver; 2, receiving unit; 21, roller one; 211, groove one; 22, roller two; 221, groove two; 23, window; 24, through hole; 3, rotating shaft; 31, ball head; 4, bearing cylinder one; 41, limiting hole; 42, elastic part one; 43, positioning block; 44, locking plate; 5, bearing cylinder two; 51, socket; 6, receiving channel; 7, attraction strip; 71, sphere; 72, guide end; 8, cylinder body; 81, chamber; 82, elastic part two; 9, contact line. DETAILED DESCRIPTION

[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] It should be noted that when an element is referred to as being "connected to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0034] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] Reference throughout the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, when the phrases "in one embodiment," "in some embodiments," or "in some of these embodiments" appear in various places throughout the specification, not all references are to the same embodiment. Furthermore, in one or more embodiments, the particular features, structures, or characteristics may be combined in any suitable manner.

[0037] Please refer to Figures 1 to 14 As shown, a conjugate electrospinning device provided by the utility model is now described. The conjugate electrospinning device is used for conjugate spinning. The conjugate electrospinning device includes a receiving device, which includes a bracket 1, a receiving unit 2, an attraction bar 7 and a cylinder 8. Figures 8 to 14As shown, in some embodiments, the receiving unit 2 is a round roller structure connected to the bracket 1, such as Fig.11 , a receiving channel 6 is provided inside the receiving unit 2 along the circumferential extension of the receiving unit 2, a cylinder body 8 is installed in the receiving unit 2, a chamber 81 is formed hollow inside the cylinder body 8, and a fluid is filled in the chamber 81, at least part of the attraction bar 7 has elastic deformation capability, and the initial form of the attraction bar 7 is straight, a sphere 71 is provided on the attraction bar 7, the sphere 71 on the attraction bar 7 is received in the cylinder body 8, and a flow gap is provided between the outer wall of the sphere 71 and the side wall of the chamber 81, the attraction bar 7 is received in the receiving channel 6 along the extension path of the receiving channel 6, an elastic member 82 is provided in the chamber 81 of the cylinder body 8 and between the sphere 71 and the cylinder body 8, the elastic member 82 always applies an elastic force to the sphere 71 to resist the attraction bar 7 from being pulled out of the receiving channel 6 to the outside of the receiving unit 2, so that when the attraction bar 7 is pulled out of the receiving channel 6 to the outside of the receiving unit 2, as shown Fig.12 As shown, the portion of the attraction strip 7 that moves out of the receiving channel 6 will automatically recover to the straight guide end 72 under the action of elastic force, and the guide end 72 of the attraction strip 7 extends to the outside of the receiving unit 2, so that it is easy to approach the fibers that are attracted and embraced together in the air, and because the elastic member 82 pushes the ball 71 to move in the chamber 81 along the extension path of the cylinder 8, the attraction strip 7 is driven to retract into the receiving channel 6, and because during the movement of the ball 71 in the cylinder 8, the fluid in the chamber 81 and located on the side close to the ball 71 will flow through the flow gap to the chamber 81 on the side away from the ball 71. Due to the viscosity of the fluid, the flow rate of the small flow gap, and the chamber 8 The pressure in the space inside the chamber 81 and between the two sides of the sphere 71 is unbalanced, so that the movement of the sphere 71 in the chamber 81 is hindered, thereby slowing down the retraction of the attraction bar 7. In this way, before the electrostatic spinning device starts working, at least part of the attraction bar 7 can be pulled out to form a guide end 72 close to the injection device outside the receiving unit 2. When the electrostatic spinning device is working, the attraction bar 7 slowly retracts, so there is enough time for the fibers to gather and entangle on the guide end 72. At the same time, during the retraction of the attraction bar 7, the fibers are slowly pulled close to the peripheral side of the receiving unit 2. Then, the receiving unit 2 is started to rotate to complete the work of guiding the fibers to the receiving unit 2. No manual operation is required, and the safety is high.

[0038] In some embodiments, one end of the cylinder 8 is closed, and the other end of the cylinder 8 is provided with a through hole only for the attraction bar 7 to penetrate, so as to prevent the fluid in the chamber 81 of the cylinder 8 from leaking from the gap between the through hole and the attraction bar 7. In some embodiments, the portion of the attraction bar 7 close to the cylinder 8 is rigid, so as to prevent the attraction bar 7 from being deformed when passing through the through hole on the cylinder 8, thereby causing the fluid in the chamber 81 to leak.

[0039] In some of the embodiments, the attraction strip 7 is made of memory foam wrapped with elastic steel wire. The outer layer of memory foam has a larger surface roughness to facilitate the attachment of fibers. The internal elastic steel wire has excellent toughness and can be well restored to its original straight state when there is no external force. At least the outer layer of the portion of the attraction strip 7 close to the cylinder body 8 is made of a material with good rigidity, such as carbon steel. The fluid filled in the chamber 81 can be selected from fluid materials of different viscosities according to the requirements of the retraction speed of the attraction strip 7.

[0040] In some embodiments, the second elastic member 82 is a coil spring that can be axially expanded and contracted.

[0041] In some of the embodiments, a lubricating layer is provided between the attraction strip 7 and the receiving channel 6 to reduce the friction resistance between the attraction strip 7 and the receiving channel 6 .

[0042] In some embodiments, the cylinder 8 is an arc-shaped structure, which facilitates the cylinder 8 to have a longer path length of the chamber 8. It is understood that in other embodiments not shown in the figures, the cylinder 8 can be a linear structure, and the structure of the chamber 8 can be but not limited to a linear structure.

[0043] like Fig.12 , Fig.13 or Fig.14 As shown, in some embodiments, a window 23 communicating with the receiving channel 6 is provided on the outer peripheral wall of the receiving unit 2, and an extension path of the window 23 is tangent to the outer peripheral wall of the receiving unit 2, and the window 23 is used for the attraction strip 7 to pass through.

[0044] like Figure 8 uh and Fig. 9 As shown, in some embodiments, the receiving unit 2 includes a roller 21 and a roller 22, and the roller 21 and the roller 22 can be coaxially matched to form a round roller structure of a complete receiving unit 2, and the end surface of the roller 21 opposite to the roller 22 is provided with a groove 1 211, and the end surface of the roller 22 opposite to the roller 1 21 is provided with a groove 221. When the roller 1 21 and the roller 2 22 are coaxially matched in place, the groove 1 211 and the groove 2 221 are aligned and matched to form the above-mentioned receiving channel 6, so that the half-spliced ​​structure can facilitate the cylinder body 8, the elastic member 2 82 and the attraction strip 7 to be installed into the receiving channel 6.

[0045] In some embodiments, the receiving device further includes a rotating shaft 3 , and the receiving unit 2 is rotatably connected to the bracket 1 via the rotating shaft 3 .

[0046] like Figures 1 to 4As shown, in some embodiments, the receiving device also includes a rotating shaft 3, a bearing tube 1 4 and a bearing tube 2 5, the bearing tube 1 4 and the bearing tube 2 5 are arranged on the bracket 1 at intervals, and a ball head 31 is provided at the first end of the rotating shaft 3, an elastic member 42 is installed between the ball head 31 and the bearing tube 1 4, the elastic member 42 is used to apply elastic force to make the ball head 31 and the rotating shaft 3 move along the first direction, until the second end of the rotating shaft 3 has a tendency to be inserted into the bearing tube 2 5, and at the same time, the ball head 31 has a tendency to abut against the bearing tube 1 4, so that under the elastic force of the elastic member 42, the ball head 31 abuts against the bearing tube 1 4, the second end of the rotating shaft 3 is inserted into the bearing tube 2 5 and abuts against the bearing tube 2 5, so that the rotating shaft 3 is connected to the bracket 1, and the receiving unit 2 is detachably sleeved on the rotating shaft 3, so that the receiving unit 2 can be connected to the bracket 1 along with the rotating shaft 3, as shown in FIG. Figure 6 As shown, in addition, when the rotating shaft 3 is moved in a second direction opposite to the first direction, the elastic force of the elastic member 42 can be resisted to drive the second end of the rotating shaft 3 to escape from the bearing tube 5, as shown in FIG. Figure 7 As shown, when the second end of the rotating shaft 3 is disengaged from the supporting tube 2 5, the rotating shaft 3 can rotate around the center of the ball head 31 until the second end of the rotating shaft 3 swings to the point where the receiving unit 2 sleeved on the rotating shaft 3 can be disengaged from the second end of the rotating shaft 3, so as to replace the receiving unit 2 of different styles. For example, the receiving unit 2 has a drum type and a plate type. The receiving unit 2 of the corresponding required style is replaced on the rotating shaft 3, and then reinserted into the supporting tube 2 5 from the second end of the rotating shaft 3. The operation is convenient and quick. Therefore, the receiving device provided in the embodiment of the utility model and the conjugate electrospinning equipment having the receiving device can conveniently change the style of the receiving device to adapt to different work requirements.

[0047] like Figure 2 As shown, in some of the embodiments, the receiving unit 2 is provided with a through hole 21 adapted to the rotating shaft 3 , and the rotating shaft 3 can be inserted into and fixed in the through hole 24 of the receiving unit 2 .

[0048] like Figure 5As shown, in some embodiments, a limiting hole 41 is provided in the inner cavity of the bearing tube 1 4, and the limiting hole 41 has a size smaller than the large circle of the ball head 31, so that when the ball head 31 passes through the limiting hole 41 from the bearing tube 1 4 to the bearing tube 2 5, the side of the ball head 31 facing the bearing tube 2 5 will eventually abut against the limiting hole 41, so that the ball head 31 and the limiting hole 41 abut to form a contact line 9 to limit the ball head 31 from continuing to move from the bearing tube 1 4 to the bearing tube 2 5. The elastic member 1 42 is located on the side of the ball head 31 facing away from the bearing tube 2 5, and the elastic member 1 42 is compressed and abutted between the bearing tube 1 4 and the ball head 31, so that the elastic member 1 42 can apply an elastic abutting force to the ball head 31, so that the ball head 31 can move along the first direction until the ball head 31 abuts against the limiting hole 41 on the bearing tube 1 4, and at the same time, the rotating shaft 3 The second end of the rotating shaft 3 is inserted into the supporting tube 25 and abuts against the supporting tube 25, so that under the action of the elastic force of the elastic member 42, the ball head 31 of the first end of the rotating shaft 3 is kept in abutment with the supporting tube 4, and the second end of the rotating shaft 3 is inserted into the supporting tube 25 and abuts against the supporting tube 25. In addition, when it is necessary to detach the second end of the rotating shaft 3 from the inner cavity of the supporting tube 25, the rotating shaft 3 can be moved in a second direction opposite to the first direction to resist the elastic force of the elastic member 42 and compress the elastic member 42, so that the second end of the rotating shaft 3 is finally detached from the inner cavity of the supporting tube 25. When the second end of the rotating shaft 3 is detached from the supporting tube 25, the second end of the rotating shaft 3 can rotate around the center of the ball head 31 until the second end of the rotating shaft 3 swings until the receiving unit 2 sleeved on the rotating shaft 3 can be detached from the second end of the rotating shaft 3, so as to replace the receiving unit 2.

[0049] like Figure 5 As shown, in some embodiments, the limiting hole 41 is a trumpet hole with a circular cross section, and the aperture of the limiting hole 41 gradually decreases from the bearing tube 1 4 to the bearing tube 2 5, so that when the ball head 31 moves from the limiting hole 41 in the direction of the bearing tube 2 5, the large circle of the ball head 31 and the side facing the bearing tube 2 5 will contact with the side wall of the limiting hole 41, so that a circular contact line 9 is formed between the ball head 31 and the limiting hole 41. It can be understood that in other embodiments, the limiting hole 41 can also be a trumpet hole with a cross section of other shapes such as a triangle, a square, a hexagon, etc.

[0050] like Figure 4As shown, in some embodiments, a driver 11 is also installed on the bracket 1. The driver 11 is a driving device that outputs circular motion power. The output end of the driver 11 is connected to the bearing cylinder 2 5 by transmission. Specifically, the output end of the driver 11 is connected to the bearing cylinder 2 5 by a gear structure. It can be understood that the output end of the driver 11 and the bearing cylinder 2 5 can also be connected by belt transmission, chain transmission, etc. In this embodiment, the driver 11 is a motor. In other embodiments not shown in the figure, the output end of the driver 11 can also be connected to the bearing cylinder 1 4 by transmission.

[0051] like Figure 5 As shown, in some embodiments, the bearing tube 1 4 is a cylindrical structure with two ends open, and a locking plate 44 is provided on the opening of the end of the bearing tube 1 4 facing away from the bearing tube 2 5, and a positioning block 43 is installed on the locking plate 44, and one end of the elastic member 1 42 is connected to the positioning block 43, and the other end of the elastic member 1 42 is against or connected to the ball head 31. In this way, when the rotating shaft 3 needs to be removed, the ball head 31 and the rotating shaft 3 can be taken out from the opening of the end of the bearing tube 1 4 facing away from the bearing tube 2 5 by opening the locking plate 44, and the disassembly and assembly between the receiving unit 2 and the rotating shaft 3 can be completed. In this way, when the receiving unit 2 is large in size, the rotating shaft 3 is prevented from being blocked by the receiving unit 2 when swinging around the ball head 31. At this time, the ball head 31 and the rotating shaft 3 can be taken out from the opening of the end of the bearing tube 1 4 facing away from the bearing tube 2 5. In this embodiment, the elastic member 1 42 is a coil spring.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A conjugate electrospinning device, characterized in that: The invention comprises a receiving device, which comprises a bracket, a receiving unit, an attraction bar and a cylinder body. The receiving unit is a round roller structure connected to the bracket. The interior of the receiving unit is provided with a receiving channel extending along the circumferential direction of the receiving unit. The cylinder body is installed in the receiving unit. The cylinder body is hollow to form a chamber, and the chamber is filled with fluid. At least part of the attraction bar has elastic deformation ability, and the initial form of the attraction bar is straight. A sphere is provided on the attraction bar, and the sphere on the attraction bar is received in the cylinder body, and a flow gap is provided between the outer wall of the sphere and the side wall of the chamber. The attraction bar is received and released in the receiving channel along the extension path of the receiving channel. An elastic member 2 is provided in the chamber of the cylinder body and between the sphere and the cylinder body. The elastic member 2 always applies an elastic force to the sphere to resist the attraction bar from being pulled out of the receiving channel from the outside of the receiving unit. The part of the attraction bar moved out of the receiving channel will automatically restore to the straight guiding end under the action of the elastic force.

2. The conjugate electrospinning device according to claim 1, characterized in that: One end of the cylinder body is closed, and the other end of the cylinder body is provided with a through hole only for the attraction strip to penetrate.

3. The conjugate electrospinning device according to claim 1, characterized in that: The portion of the attraction strip close to the cylinder body is rigid.

4. The conjugate electrospinning device according to claim 1, characterized in that: The second elastic member is a helical spring that can be axially extended and retracted.

5. The conjugate electrospinning device according to claim 1, characterized in that: A lubricating layer is provided between the attraction strip and the receiving channel.

6. The conjugate electrospinning device according to claim 1, characterized in that: The cylinder body is an arc-shaped structure.

7. The conjugate electrospinning device according to claim 1, characterized in that: A window communicating with the receiving channel is arranged on the outer peripheral wall of the receiving unit.

8. The conjugate electrospinning device according to claim 1, characterized in that: The receiving unit includes roller one and roller two, which can be coaxially matched to form a round roller structure of a complete receiving unit. The end surface of roller one opposite to roller two is provided with groove one, and the end surface of roller two opposite to roller one is provided with groove two. When roller one and roller two are coaxially matched in place, groove one and groove two are aligned and matched to form the receiving channel.

9. The conjugate electrospinning device according to claim 1, characterized in that: The receiving device also includes a rotating shaft, and the receiving unit is rotatably connected to the bracket via the rotating shaft.