Syringe pump assembly and electrospinning apparatus

Abstract

The application discloses an injection pump assembly and an electrostatic spinning device, and relates to the technical field of injection pump assemblies and electrostatic spinning devices. The injection pump assembly comprises an injector, a piston push rod in sliding connection with an injection cylinder, and a magnetic stirring rod arranged in the injection cylinder. The injection pump assembly further comprises a bottom plate, wherein the injector is arranged on the bottom plate; a sliding member in sliding connection with the bottom plate; a first driving member connected with the piston push rod and the sliding member; a magnetic ring sleeved on the injection cylinder and rotatably connected with the sliding member for driving the magnetic stirring rod to rotate; and a second driving member for driving the magnetic ring to rotate. The application can realize safe and continuous conveying of spinning liquid and uniform stirring of the spinning liquid, and improves the spinning preparation efficiency.

Description

Technical Field

[0001] This invention relates to the field of electrospinning technology, and in particular to an injection pump assembly and an electrospinning device. Background Technology

[0002] Electrospinning is a technology in which a polymer solution is formed into a jet stream under high voltage electrostatics, and these jet streams are formed into nanofibers through processes such as high-speed stretching by electric field force, solvent evaporation and refinement.

[0003] Electrospinning equipment mainly consists of an injection pump, syringe and nozzle, high-voltage power supply and receiving device. The injection pump is primarily used for the precise delivery of the spinning solution and the stable control of its injection speed. Besides delivering the solution, the injection pump must also meet the special working environment of electrospinning, avoiding high-voltage discharge or electrostatic accumulation breakdown caused by exposed metal parts or conductive materials. This would affect the uniformity of the electric field, the spinning effect, and potentially burn out electrical components. Currently, the injection pumps in commercially available electrospinning equipment can achieve uniform and continuous injection of most spinning solutions, but they cannot meet the electrospinning requirements of multi-component spinning solutions containing suspensions, sols, emulsions, etc. This is because these spinning solutions will coagulate and precipitate within a short time during electrospinning, making it impossible to maintain uniformity and stability throughout the spinning period. Common solutions include dispersing and stirring in a magnetic or ultrasonic stirring device, then using a small-capacity syringe to deliver the solution via the injection pump to shorten the delivery time, or repeatedly pausing the experiment, stirring, and then resuming spinning. Ultimately, this results in low spinning efficiency. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an injection pump assembly that can safely and continuously deliver spinning solution while ensuring uniform mixing of the spinning solution, thereby improving the efficiency of spinning preparation.

[0005] Meanwhile, an electrospinning device is provided, which can ensure uniform mixing of the spinning solution while safely and continuously conveying the spinning solution, thereby improving the efficiency of spinning preparation.

[0006] This invention is achieved through the following technical solution:

[0007] An infusion pump assembly, comprising:

[0008] A syringe includes a syringe barrel and a piston rod slidably connected to the syringe barrel, wherein a magnetic stir bar is provided inside the syringe barrel;

[0009] The infusion pump assembly also includes:

[0010] Base plate, the syringe is mounted on the base plate;

[0011] The sliding component is slidably connected to the base plate;

[0012] The first driving component is connected to both the piston rod and the sliding component.

[0013] A magnetic ring is sleeved on the injection cylinder and rotatably connected to the sliding member to drive the magnetic stir bar to rotate;

[0014] The second driving component is used to drive the magnetic ring to rotate.

[0015] Furthermore, the injection pump assembly also includes a bearing, through which the magnetic ring is rotatably connected to the sliding member.

[0016] Furthermore, the sliding member includes a fixing plate with a first hole, the bearing is fixed in the first hole, and the magnetic ring and the bearing are fixedly connected.

[0017] Furthermore, the sliding member also includes a sliding plate fixedly connected to the fixed plate, and the sliding plate is slidably connected to the sliding track on the base plate.

[0018] Furthermore, the second driving component includes a motor and a drive wheel fixedly connected to the motor. The motor is fixedly mounted on the sliding plate, and the drive wheel abuts against the magnetic ring.

[0019] Furthermore, the arc surface of the drive wheel is provided with a leather ring, which abuts against the magnetic ring.

[0020] Furthermore, the rotational speed of the drive wheel is 30-120 rpm.

[0021] Furthermore, the first driving component includes a driving device, a connecting rod, and a push block. One end of the connecting rod is connected to the driving device, and the other end is connected to the push block. The push block is slidably connected to the base plate and simultaneously connected to the piston push rod.

[0022] Furthermore, the push block is provided with a groove, and the pressing part of the piston push rod is accommodated in the groove.

[0023] Furthermore, the first driving component also includes a slider, which is fixedly connected to the push block and slidably connected to the base plate.

[0024] Furthermore, the first driving component also includes a plate, which is fixedly connected to the push block and abuts against the sliding component.

[0025] Furthermore, the injection pump assembly also includes a support frame fixed to the bottom of the base plate, with a receiving space between the base plate and the support frame, and the drive device located below the syringe and fixedly disposed in the receiving space.

[0026] Furthermore, the first driving component also includes a fixing block, which is fixedly connected to both the base plate and the support frame, and the driving device is fixedly connected to the fixing block.

[0027] Furthermore, a pad is provided on the base plate. The pad includes a pad body and a pair of limiting blocks protruding from the pad body. A receiving groove is formed between the pair of limiting blocks, and the head of the injection cylinder is received in the receiving groove.

[0028] Furthermore, the injection pump assembly also includes a nozzle assembly, which includes a side plate, a storage block, and a plurality of injection components. The side plate and the base plate are fixedly connected, the storage block and the side plate are fixedly connected, the injection component array is housed in the storage block, and the push block can push the push rod of the injection component.

[0029] An electrospinning device includes a housing, a receiving device, a reciprocating translation component, a receiving translation component, and the aforementioned injection pump component. The receiving device, the reciprocating translation component, the receiving translation component, and the injection pump component are all disposed within the housing. The injection pump component and the reciprocating translation component are fixedly connected, and the receiving device and the receiving translation component are slidably connected.

[0030] Furthermore, the electrospinning equipment also includes a camera, which is disposed inside the housing and above the injection pump assembly.

[0031] Furthermore, the base plate, sliding parts, support frame, push block, motor box, pad block, side plate, and storage block mentioned above are all made of insulating materials, which can be any one of polyoxymethylene, nylon, polytetrafluoroethylene, polyurethane, epoxy resin, polystyrene, polyethylene, polystyrene, polyvinyl chloride, and perfluoropropylene. They are assembled and molded using insulating materials, making operation safe and reliable.

[0032] Compared with the prior art, the advantages of this invention are:

[0033] 1. The motor drives the drive wheel to rotate. The drive wheel generates friction between the belt ring and the magnetic ring, which in turn drives the magnetic ring to rotate. The rotating magnetic ring drives the magnetic stirrer inside the injection cylinder to rotate along the arc of the magnetic ring to stir the spinning solution. When the drive device drives the connecting rod to retract, the connecting rod drives the push block to move along the slider direction. When the push block moves, it pushes the piston rod to eject the spinning solution from the injection cylinder through the needle. At the same time, the plate fixedly connected to the push block pushes the sliding plate to move along the sliding track on the base plate. The movement of the sliding plate drives the fixed plate to move together, which in turn drives the magnetic ring on the fixed plate to move along the direction of the injection cylinder. The movement of the magnetic ring drives the magnetic stirrer inside the injection cylinder to move along the direction of the injection cylinder, while the magnetic stirrer also rotates inside the injection cylinder. The rotation of the magnetic ring drives the magnetic stirrer to rotate, and the magnetic stirrer also moves synchronously with the piston rod in a linear motion, ultimately achieving a spiral motion of the magnetic stirrer along the direction of the injection cylinder, thereby stirring the spinning solution in real time. This injection pump assembly continuously agitates the internal spinning solution in situ, maintaining uniform dispersion of each component in the multi-component spinning solution and consistency over a longer spinning period. This improves experimental preparation efficiency and product performance, achieving safe and continuous delivery of the spinning solution while ensuring uniform mixing, thus enhancing the efficiency of spinning preparation.

[0034] 2. The drive unit is located below the syringe and is fixedly installed in the receiving space. The fixing block is installed in the receiving space and is fixedly connected to the base plate and the support frame. The drive unit and the fixing block are fixedly connected. The drive unit is located below the syringe, which can save floor space.

[0035] 3. The base plate, sliding parts, support frame, push block, motor box, pad block, side plate and storage block are all made of insulating materials, which can be any one of polyoxymethylene, nylon, polytetrafluoroethylene, polyurethane, epoxy resin, polystyrene, polyethylene, polystyrene, polyvinyl chloride and perfluoropropylene. They are assembled and molded using insulating materials, and the operation is safe and reliable. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of an injection pump assembly according to the present invention. Figure 1 ;

[0037] Figure 2 for Figure 1 Enlarged view of section A in the middle;

[0038] Figure 3 This is a schematic diagram of the structure of an injection pump assembly according to the present invention. Figure 2 ;

[0039] Figure 4 This is a partial structural diagram of an injection pump assembly according to the present invention. Figure 1 ;

[0040] Figure 5 This is a partial structural diagram of an injection pump assembly according to the present invention. Figure 2 ;

[0041] Figure 6 This is a partial structural diagram of an injection pump assembly according to the present invention. Figure 3 ;

[0042] Figure 7 This is a schematic diagram of the electrospinning equipment of the present invention;

[0043] Figure 8 This is a schematic diagram of the internal structure of the electrospinning equipment of the present invention. Figure 1 ;

[0044] Figure 9 This is a schematic diagram of the internal structure of the electrospinning equipment of the present invention. Figure 2 .

[0045] 100. Injection pump assembly; 1. Syringe; 10. Magnetic stir bar; 11. Injection barrel; 14. Head; 15. Tube section; 12. Piston rod; 13. Pressing part; 16. Needle; 2. Base plate; 20. Sliding track; 21. Pad; 210. Pad body; 211. Limiting block; 212. Receiving groove; 3. Sliding component; 30. Fixing plate; 300. First hole; 301. Second hole; 31. Sliding plate; 4. First driving component; 40. Driving device; 41. Connecting rod; 42. Push block; 420. Groove section; 43. Slider; 44. Plate; 45. Fixing block; 5. Magnetic ring; 6. Second driving component; 60. Motor; 61. Drive wheel; 610. Arc surface; 62. Leather ring; 7. Support frame; 70. Accommodation space; 8. Bearing; 9. Nozzle assembly; 90. Side plate; 91. Storage block; 92. Injection part; 920. Push rod; 93. Nut; 101. Housing; 102. Receiving device; 120. Adjusting block; 121. Locking rod; 122. Roller; 103. Reciprocating translation assembly; 130. Bottom plate; 131. Lead screw; 132. Moving block; 133. Drive motor; 104. Receiving translation assembly; 105. Camera; 106. Auxiliary injection pump; 107. Connecting plate; 108. Locking rod; 109. Door panel; 110. Door handle; 111. Door lock; 112. Hinge plate; 113. Operation display screen; 114. Emergency stop button; 115. Exhaust fan; 116. Lighting. Detailed Implementation

[0046] The following detailed, non-limiting description of the invention's technical solutions, in conjunction with preferred embodiments and accompanying drawings, is provided. In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0047] like Figure 1 As shown, an embodiment of the present invention provides an injection pump assembly, including a syringe 1, a base plate 2, a sliding member 3, a first driving member 4, a magnetic ring 5, a second driving member 6, a support frame 7, a bearing 8, and a nozzle assembly 9. The syringe 1 includes an injection barrel 11 and a piston rod 12 slidably connected to the injection barrel 11. A magnetic stir bar 10 is disposed inside the injection barrel 11. The syringe 1 is disposed on the base plate 2. The sliding member 3 is slidably connected to the base plate 2. The first driving member 4 is simultaneously connected to the piston rod 12 and the sliding member 3. The magnetic ring 5 is sleeved on the injection barrel 11 and is rotatably connected to the sliding member 3 to drive the magnetic stir bar 10 to rotate. Specifically, the magnetic ring 5 is rotatably connected to the sliding member 3 through the bearing 8. The second driving member 6 is disposed on the sliding member 3 to drive the magnetic ring 5 to rotate. The support frame 7 is fixed to the bottom of the base plate 2. There is a receiving space 70 between the base plate 2 and the support frame 7. The first driving member 4 is partially accommodated in the receiving space 70. The nozzle assembly 9 is fixedly connected to the base plate 2.

[0048] The syringe 1 also includes a needle 16, which is connected to the syringe barrel 11.

[0049] A pad 21 is provided on the base plate 2. The pad 21 includes a pad body 210 and a pair of limiting blocks 211 protruding from the pad body 210. A receiving groove 212 is formed between the pair of limiting blocks 211. The head 14 of the syringe 11 is received in the receiving groove 212. The pad 21 provides a supporting force to the syringe 1. At the same time, the pair of limiting blocks 211 abut against the syringe 11. The limiting blocks 211 provide a limiting effect on the tube 15 of the syringe 11 to prevent the syringe 1 from falling off the base plate 2 when the first driving member 4 pushes the piston rod 12.

[0050] The sliding component 3 includes a fixed plate 30 and a sliding plate 31 fixedly connected to the fixed plate 30. The sliding plate 31 is slidably connected to the sliding track 20 on the base plate 2.

[0051] The fixing plate 30 is provided with a first hole 300 and a second hole 301. The bearing 8 is fixed in the first hole 300, and the magnetic ring 5 is fixedly connected to the bearing 8. The injection cylinder 11 passes through the bearing 8 and the magnetic ring 5.

[0052] The first driving component 4 includes a driving device 40, a connecting rod 41, a push block 42, a slider 43, a plate 44, and a fixing block 45. The driving device 40 is located below the syringe 1 and is fixedly installed in the receiving space 70. Specifically, the fixing block 45 is installed in the receiving space 70 and is fixedly connected to both the base plate 2 and the support frame 7. The driving device 40 and the fixing block 45 are fixedly connected. The driving device 40 is located below the syringe 1, which saves floor space. One end of the connecting rod 41 is connected to the driving device 40, and the other end is connected to the push block 42. The push block 42 is slidably connected to the base plate 2 and also connected to the piston push rod 12. Specifically, the slider 43 is fixedly connected to the push block 42 and slidably connected to the base plate 2. The plate 44 is fixedly connected to the push block 42, and the plate 44 abuts against the slider 3 to push the sliding plate 31 in the slider 3 to move along the sliding track 20. When the drive unit 40 drives the connecting rod 41 to move, the connecting rod 41 drives the push block 42 to push the piston rod 12. At the same time, the push block 42 also pushes the sliding member 3 to move along the sliding track 20 through the plate 44. The sliding member 3 then drives the magnetic ring 5 to move along the direction of the injection cylinder 11. The magnetic ring 5 drives the magnetic stir bar 10 to move linearly, ultimately achieving synchronous movement of the piston rod 12 and the magnetic stir bar 10. The travel of the magnetic ring 5 on the injection cylinder 11 covers the maximum travel of the piston rod 12 under the current working state.

[0053] The drive device 40 can be a motor or cylinder or other device that can drive the connecting rod 41 to move along the slider 43.

[0054] The push block 42 is provided with a groove 420, in which the pressing part 13 of the piston push rod 12 is accommodated. The groove 420 provides an upward supporting force to the piston push rod 12, and at the same time generates a thrust on the piston push rod 12 when the push block 42 moves.

[0055] Part 44 is made of metal.

[0056] The second driving component 6 includes a motor 60 and a drive wheel 61 fixedly connected to the motor 60. A motor housing (not shown) is provided on the outer side of the motor 60. The motor 60 is fixedly mounted on the sliding plate 31. Specifically, the shaft of the motor 60 passes through the second hole 301 and connects to the drive wheel 61. The drive wheel 61 abuts against the magnetic ring 5. Specifically, a leather ring 62 is provided on the arc surface 610 of the drive wheel 61, abutting against the magnetic ring 5. When the motor 60 drives the drive wheel 61 to rotate, the leather ring on the arc surface 610 drives the magnetic ring 5 to rotate through friction, thereby driving the magnetic stirrer 10 to rotate. Simultaneously, the magnetic stirrer 10 also moves synchronously in a linear motion with the piston rod 12, ultimately achieving a spiral motion of the magnetic stirrer 10 along the direction of the injection cylinder 11, thereby stirring the spinning solution in real time. Furthermore, the stirring of the spinning solution is achieved non-contactly, making operation safer and more stable. In this embodiment, the rotational speed of the drive wheel 61 is 30-120 rpm.

[0057] The arc surface 610 of the drive wheel 61 is provided with a storage groove (not shown in the figure) to accommodate the rubber ring 62. The rubber ring 62 is then fixed in the storage groove with glue to prevent the rubber ring 62 from detaching from the arc surface 610 after long-term friction with the magnetic ring 5.

[0058] The nozzle assembly 9 includes a side plate 90, a storage block 91 and a plurality of injection elements 92. The side plate 90 and the base plate 2 are fixedly connected. The storage block 91 is fixedly connected to the side plate 90 by a nut 93. The array of injection elements 92 is housed in the storage block 91. The push block 42 can push the push rod 920 of the injection element 92, thereby driving the injection element 92 to inject spinning liquid.

[0059] The base plate 2, sliding part 3, support frame 7, push block 42, motor box, pad block 21, side plate 90 and storage block 91 mentioned above are all made of insulating materials, which can be any one of polyoxymethylene, nylon, polytetrafluoroethylene, polyurethane, epoxy resin, polystyrene, polyethylene, polyvinyl chloride and perfluoropropylene. They are assembled and molded using insulating materials, and the operation is safe and reliable.

[0060] During operation, motor 60 drives drive wheel 61 to rotate. Drive wheel 61 generates friction through rubber ring 62 and magnetic ring 5, thereby driving magnetic ring 5 to rotate. The rotating magnetic ring 5 drives magnetic stir bar 10 inside injection cylinder 11 to rotate along the arc direction of magnetic ring 5 to stir spinning solution. When drive device 40 drives connecting rod 41 to retract, connecting rod 41 drives push block 42 to move along slider 43. When push block 42 moves, push block 21 pushes piston push rod 12 to eject spinning solution inside injection cylinder 11 through needle 16. At the same time, plate 44 fixedly connected to push block 42 pushes sliding plate 31 to move along sliding track 20 on base plate 2. The movement of sliding plate 31 drives fixed plate 30 to move together, thereby driving magnetic ring 5 on fixed plate 30 to move along injection cylinder 11. The movement of magnetic ring 5 drives magnetic stir bar 10 inside injection cylinder 11 to move along injection cylinder 11. At the same time, magnetic stir bar 10 also rotates inside injection cylinder 11. The injection pump assembly 100 can continuously agitate the internal spinning solution in situ, which can maintain the uniform dispersion of each component of the multi-component spinning solution and the consistency over a long spinning period, thereby improving experimental preparation efficiency and product preparation performance.

[0061] An embodiment of the electrospinning equipment of the present invention includes an injection pump assembly 100, a housing 101, a receiving device 102, a reciprocating translation assembly 103, a receiving translation assembly 104, and a camera 105. The receiving device 102, the reciprocating translation assembly 103, the receiving translation assembly 104, and the injection pump assembly 100 are all disposed within the housing 101. The injection pump assembly 100 and the reciprocating translation assembly 103 are fixedly connected, and the receiving device 102 and the receiving translation assembly 104 are slidably connected. The camera 105 is disposed within the housing 101 and located above the injection pump assembly 100, and can project the internal status of the housing 101 onto a display or projector, which is beneficial for teaching demonstrations or obtaining equipment operating status information from a distance.

[0062] The roller 122 on the receiving device 102 is used to receive electrospun fibers, and the roller 122 can reciprocate in the horizontal direction from 0° to 90°.

[0063] An adjusting block 120 is provided between the receiving device 102 and the receiving translation component 104. One side of the adjusting block 120 is fixedly connected to the receiving device 102, and the other side is slidably connected to the receiving translation component 104. The receiving device 102 slides on the receiving translation component 104 through the adjusting block 120 to adjust the distance between the receiving device 102 and the injection pump component 100. A locking rod 121 is provided on the adjusting block 120. After the position of the receiving device 102 is adjusted to the correct position, it is locked by the locking rod 121.

[0064] The reciprocating translation assembly 103 includes a bottom plate 130, a lead screw 131 rotatably connected to the bottom plate 130, a moving block 132 sleeved on the lead screw 131, and a drive motor 133 fixedly connected to the bottom plate 130 for driving the lead screw 131 to rotate. The support frame 7 is fixedly connected to the moving block 132. The drive motor 133 drives the lead screw 131 to rotate, thereby driving the moving block 132 to move, ultimately causing the injection pump assembly 100 to move back and forth along the direction of the lead screw 131 following the moving block 132.

[0065] Specifically, a connecting plate 107 and a locking rod 108 are provided between the support frame 7 and the movable block 132. The connecting plate 107 is fixed on the movable block 132, and the locking rod 108 passes through the support frame 7 and the connecting plate 107 to control the locking and releasing between the support frame 7 and the connecting plate 107, so as to achieve the purpose of adjusting the angle of the injection pump assembly 100.

[0066] The electrospinning equipment also includes a secondary injection pump 106, which is fixed on the moving block 132 and can be used in parallel with the injection pump assembly 100 to work with the coaxial nozzle to prepare coaxial nanofibers.

[0067] The electrospinning equipment also includes a door panel 109, a door handle 110, a door lock 111, a hinge plate 112, an operation display screen 113, an emergency stop button 114, and an exhaust fan 115. The door panel 109 and the hinge plate 112 are fixedly connected, and the hinge plate 112 is fixed to the housing 101 to allow the door panel 109 to rotate and open and close within the housing 101. The door panel 109 is made of transparent material, making it easy for outsiders to observe the working status inside the housing 101. The door handle 110 is fixedly connected to the door panel 109 to facilitate the opening and closing of the door panel 109. The operation display screen 113 and the emergency stop button 114 are fixed to the outside of the housing 101, and the exhaust fan 115 is located on the top of the housing 101.

[0068] An illumination lamp 116 is also provided on the inner bottom plate (not shown in the figure) of the housing 101. The illumination lamp 116 is located between the injection pump assembly 100 and the receiving device 102 for illumination.

[0069] The injection pump assembly and electrospinning equipment of the present invention can meet the innovative needs of customers in various fields for nanofiber preparation, composite and functionalization. The injection pump equipped with the equipment adopts non-contact magnetic stirring, which provides safety protection against high voltage static electricity while effectively transmitting power. It can continuously stir the internal solution in situ, so that the components of the multi-component spinning solution are uniformly dispersed and consistent over a long spinning time period. It achieves safe and continuous delivery of spinning solution while ensuring uniform mixing of spinning solution, thus improving the efficiency of spinning preparation.

[0070] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. An infusion pump assembly, comprising: The syringe (1) includes a syringe barrel (11) and a piston rod (12) slidably connected to the syringe barrel (11), characterized in that a magnetic stir bar (10) is provided inside the syringe barrel (11). The infusion pump assembly (100) also includes: The base plate (2) is on which the syringe (1) is disposed; The sliding member (3) is slidably connected to the base plate (2); The first driving component (4) is connected to both the piston rod (12) and the sliding component (3); A magnetic ring (5) is sleeved on the injection cylinder (11) and rotatably connected to the sliding member (3) to drive the magnetic stir bar (10) to rotate; The second driving component (6) is used to drive the magnetic ring (5) to rotate; The injection pump assembly (100) also includes a bearing (8), through which the magnetic ring (5) is rotatably connected to the slider (3).

2. The syringe pump assembly according to claim 1, characterized in that, The sliding member (3) includes a fixing plate (30), on which a first hole (300) is provided, the bearing (8) is fixed in the first hole (300), and the magnetic ring (5) and the bearing (8) are fixedly connected.

3. The syringe pump assembly according to claim 2, characterized in that, The sliding member (3) also includes a sliding plate (31) fixedly connected to the fixed plate (30), and the sliding plate (31) is slidably connected to the sliding track (20) on the base plate (2).

4. The syringe pump assembly according to claim 3, characterized in that, The second driving component (6) includes a motor (60) and a drive wheel (61) fixedly connected to the motor (60). The motor (60) is fixedly mounted on the sliding plate (31), and the drive wheel (61) abuts against the magnetic ring (5).

5. The syringe pump assembly according to claim 4, characterized in that, The drive wheel (61) has a leather ring (62) on its arc surface (610), which abuts against the magnetic ring (5). The drive wheel (61) rotates at a speed of 30-120 rpm.

6. The syringe pump assembly according to claim 1, characterized in that, The first driving component (4) includes a driving device (40), a connecting rod (41) and a push block (42). One end of the connecting rod (41) is connected to the driving device (40) and the other end is connected to the push block (42). The push block (42) is slidably connected to the base plate (2) and connected to the piston push rod (12).

7. The syringe pump assembly according to claim 6, characterized in that, The push block (42) is provided with a groove (420), and the pressing part (13) of the piston push rod (12) is accommodated in the groove (420).

8. The syringe pump assembly according to claim 6, characterized in that, The first driving component (4) further includes a slider (43) and a plate (44). The slider (43) and the push block (42) are fixedly connected, and the slider (43) and the base plate (2) are slidably connected. The plate (44) and the push block (42) are fixedly connected, and the plate (44) and the slider (3) abut against each other.

9. The syringe pump assembly according to claim 6, characterized in that, The injection pump assembly (100) also includes a support frame (7) fixed to the bottom of the base plate (2), and there is a receiving space (70) between the base plate (2) and the support frame (7). The drive device (40) is located below the syringe (1) and fixedly disposed in the receiving space (70).

10. The syringe pump assembly according to claim 9, characterized in that, The first driving component (4) further includes a fixing block (45), which is fixedly connected to the base plate (2) and the support frame (7) at the same time. The driving device (40) is fixedly connected to the fixing block (45).

11. The syringe pump assembly according to claim 1, characterized in that, A pad (21) is provided on the base plate (2). The pad (21) includes a pad body (210) and a pair of limiting blocks (211) protruding from the pad body (210). A receiving groove (212) is formed between the pair of limiting blocks (211), and the head (14) of the injection cylinder (11) is received in the receiving groove (212).

12. The syringe pump assembly according to claim 6, characterized in that, The injection pump assembly (100) also includes a nozzle assembly (9), which includes a side plate (90), a storage block (91), and a plurality of injection parts (92). The side plate (90) and the base plate (2) are fixedly connected, and the storage block (91) and the side plate (90) are fixedly connected. The injection parts (92) are arranged in an array in the storage block (91). The push block (42) can push the push rod (920) of the injection parts (92).

13. An electrospinning device, characterized in that, The device includes a housing (101), a receiving device (102), a reciprocating translation assembly (103), a receiving translation assembly (104), and an injection pump assembly (100) as described in any one of claims 1-12. The receiving device (102), the reciprocating translation assembly (103), the receiving translation assembly (104), and the injection pump assembly (100) are all disposed within the housing (101). The injection pump assembly (100) and the reciprocating translation assembly (103) are fixedly connected, and the receiving device (102) and the receiving translation assembly (104) are slidably connected.

14. The electrospinning equipment according to claim 13, characterized in that, The electrospinning equipment also includes a camera (105), which is disposed inside the housing (101) and above the injection pump assembly (100).

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