Electrostatic spinning device suitable for multiple needle tubes

Abstract

The utility model discloses an electrostatic spinning device suitable for multiple needle tubes, and aims to solve the problems that the spinning distance is difficult to adjust and the multiple needle tubes are inconvenient to clamp. According to the electrostatic spinning device, two supporting plates are arranged on the left side and the right side of the upper surface of a base respectively, a lower clamp plate and an upper clamp plate in a clamp are buckled, two sliding blocks are arranged on the lower surface of the lower clamp plate, a lead screw penetrates through the two supporting plates and the two sliding blocks, the lead screw is connected with the two supporting plates through threads, and the lead screw is driven by a stepping motor to rotate. The base is provided with a slot, the plug board is plugged in the slot of the base, the end part of the plug board is hinged with an adjusting plate, the conductive plate is attached to the adjusting plate, and the needle head is plugged on the adjusting plate. The clamp in the electrostatic spinning device facilitates clamping of multiple injectors, the sliding block at the bottom of the clamp is driven by the lead screw to achieve reciprocating motion, the inserting plate is arranged at the bottom of the clamp, the needle head adjusting plate is arranged on the inserting plate, and adjustment of the spinning angle and the spinning distance is facilitated.

Description

Technical Field

[0001] The utility model relates to an electrostatic spinning device for laboratory use. Background Art

[0002] The electrospinning process is to make the polymer solution or melt flow and deform under the action of a high-voltage electric field, and produce a Taylor cone at the spinneret. When the electric field strength is large enough to make the droplet overcome the surface tension, a high-speed jet will be formed, which will be sprayed on the receiving device to obtain fiber materials. Electrospinning can produce ultra-fine fibers of several microns or even tens of nanometers. Due to its high porosity, large specific surface area and large aspect ratio, electrospun fibers are widely used in the fields of biomaterials, sensors, drug controlled release, etc.

[0003] During the electrospinning process, process parameters such as electrostatic voltage, jet velocity, and receiving distance will have an important impact on nanofibers. Therefore, it is necessary to develop an electrospinning device that is suitable for use in the laboratory and is easy to adjust the spinning distance. Utility Model Content

[0004] The utility model aims to solve the problems that the spinning distance is difficult to adjust and the clamping of multiple needle tubes is inconvenient, and to provide an electrostatic spinning device suitable for multiple needle tubes.

[0005] The utility model is suitable for an electrostatic spinning device for multiple needle tubes, comprising a base, two supporting plates, a clamp, a lead screw, a stepping motor, an insert plate, an adjusting plate, an electric push plate, an electrostatic generator and a receiving roller, wherein the two supporting plates are respectively arranged on the left and right sides of the upper surface of the base; the clamp comprises a lower clamp plate, an upper clamp plate and two sliding blocks, a plurality of syringe grooves are respectively opened on the lower clamp plate and the upper clamp plate, the syringes are placed in the syringe grooves, the lower clamp plate and the upper clamp plate are buckled, the two sliding blocks are arranged on the lower surface of the lower clamp plate, the clamp is placed on the two supporting plates, the lead screw passes through the two supporting plates and the two sliding blocks, the lead screw is connected to the two supporting plates by threads, and the lead screw is driven to rotate by the stepping motor; the electric push plate is arranged at the rear of the syringe, and the electric push plate contacts the piston of the syringe;

[0006] A slot is provided on the base, and a plug plate is plugged into the slot of the base. The plug plate moves back and forth in the slot. An adjustment plate is hinged at the end of the plug plate. A conductive plate is attached to the adjustment plate. The conductive plate has a conductive terminal. The liquid outlet of the syringe is connected to one end of a connecting hose. The other end of the connecting hose is connected to a needle. The needle is inserted into the adjustment plate. The positive pole of the electrostatic generator is connected to the conductive terminal. The negative pole of the electrostatic generator is connected to a receiving roller.

[0007] The utility model is suitable for an electrostatic spinning device for multiple needle tubes, which mainly includes a base, a clamp, a lead screw, a stepper motor, a plug plate, an adjustment plate, an electrostatic generator and a receiving roller. The clamp includes a lower clamp plate and an upper clamp plate. Multiple syringes are placed in the groove of the lower clamp plate. The upper clamp plate is closed to clamp the multiple syringes. A slider is provided on the lower surface of the clamp, and the slider is connected to the lead screw by a thread. The stepper motor drives the lead screw to rotate forward and backward to make the clamp reciprocate. A plug plate is plugged into the base, and an adjustment plate is hinged on the plug plate. The adjustment plate is convenient for adjusting the angle of the spinneret, and the plug-in method of the plug plate is convenient for adjusting the distance of the spinneret.

[0008] The utility model is suitable for an electrospinning device with multiple needle tubes and is mainly used for the research of electrospinning technology in the laboratory. The clamp in the electrospinning device is convenient for clamping multiple syringes. The bottom slide block of the clamp is driven by a lead screw to realize reciprocating motion. An insert plate is arranged at the bottom of the clamp, and a needle adjustment plate is arranged on the insert plate, which is convenient for adjusting the spinning angle and spinning distance. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a front view structural schematic diagram of the utility model applicable to the electrospinning device of multiple needle tubes;

[0010] Figure 2 The utility model is a schematic diagram of the overall structure of the electrospinning device suitable for multiple needle tubes. DETAILED DESCRIPTION

[0011] Specific implementation method one: This implementation method is suitable for an electrospinning device with multiple needle tubes and includes a base 1, two support plates 2, a fixture, a lead screw 6, a stepper motor 7, an insert plate 8, an adjustment plate 9, an electric push plate 11, an electrostatic generator 14 and a receiving roller 15. The two support plates 2 are respectively arranged on the left and right sides of the upper surface of the base 1; the fixture includes a lower fixture plate 3, an upper fixture plate 4 and two sliders 5, and a plurality of syringe grooves are respectively opened on the lower fixture plate 3 and the upper fixture plate 4. The syringe 12 is placed in the syringe groove, the lower fixture plate 3 and the upper fixture plate 4 are buckled, and the two sliders 5 are arranged on the lower surface of the lower fixture plate 3, the fixture is placed on the two support plates 2, the lead screw 6 passes through the two support plates 2 and the two sliders 5, the lead screw 6 is connected to the two support plates 2 by threads, and the lead screw 6 is driven to rotate by the stepper motor 7; the electric push plate 11 is arranged at the rear of the syringe 12, and the electric push plate 11 is in contact with the piston of the syringe 12;

[0012] A slot is provided on the base 1, and the plug plate 8 is plugged into the slot of the base 1. The plug plate 8 moves back and forth in the slot. An adjustment plate 9 is hinged at the end of the plug plate 8. A conductive plate 10 is attached to the adjusting plate 9. The conductive plate 10 has a conductive terminal 10-1. The liquid outlet of the syringe 12 is connected to one end of a connecting hose 17, and the other end of the connecting hose 17 is connected to a needle 13. The needle 13 is inserted into the adjustment plate 9. The positive pole of the electrostatic generator 14 is connected to the conductive terminal 10-1, and the negative pole of the electrostatic generator 14 is connected to the receiving roller 15.

[0013] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that limiters 19 are respectively provided on the two support plates 2.

[0014] In this embodiment, when the slider contacts the stopper 19, the stepper motor rotates in the opposite direction, driving the clamp to reciprocate.

[0015] Specific implementation method three: This implementation method is different from specific implementation methods one or two in that a guide protrusion 18 is provided on the lower surface of the lower clamp plate 3 along the width direction of the clamp, and the tops of the two support plates 2 are provided with guide grooves, and the guide protrusion 18 is located in the guide groove.

[0016] Specific embodiment 4: The difference between this embodiment and specific embodiments 1 to 3 is that 3 to 6 syringe grooves are respectively formed on the lower fixture plate 3 and the upper fixture plate 4.

[0017] Specific implementation method five: This implementation method is different from specific implementation methods one to four in that the lower fixture plate 3 and the upper fixture plate 4 are fastened together by plugging or bolting.

[0018] Embodiment: This embodiment is suitable for an electrospinning device for multiple needle tubes and includes a base 1, two support plates 2, a fixture, a lead screw 6, a stepping motor 7, a plug plate 8, an adjustment plate 9, an electric push plate 11, an electrostatic generator 14 and a receiving roller 15. The two support plates 2 are respectively arranged on the left and right sides of the upper surface of the base 1; the fixture includes a lower fixture plate 3, an upper fixture plate 4 and two sliders 5, and a plurality of syringe grooves are respectively opened on the lower fixture plate 3 and the upper fixture plate 4, and the syringe 12 is placed in the syringe groove. The left and right sides of the lower fixture plate 3 and the upper fixture plate 4 are respectively provided with connecting plates 16, and the lower fixture plate 3 The connecting plate 16 of the upper fixture plate 4 is aligned and buckled and connected by bolts. Two sliders 5 are arranged at intervals on the lower surface of the lower fixture plate 3. The fixture is placed on the two support plates 2. A guide protrusion 18 is arranged on the lower surface of the lower fixture plate 3 along the width direction of the fixture. The tops of the two support plates 2 are provided with guide grooves that match the guide protrusion 18. The lead screw 6 passes through the two support plates 2 and the two sliders 5. The lead screw 6 is connected to the two support plates 2 by threads. The lead screw 6 is driven to rotate by the stepping motor 7. The electric push plate 11 is arranged at the rear of the syringe 12, and the electric push plate 11 is in contact with the piston of the syringe 12.

[0019] A slot is provided on the base 1, and the plug plate 8 is plugged into the slot of the base 1. The plug plate 8 moves back and forth in the slot. An adjusting plate 9 is hinged at the end of the plug plate 8. A conductive plate 10 is attached to the adjusting plate 9. The conductive plate 10 has a conductive terminal 10-1. The liquid outlet of the syringe 12 is connected to one end of a connecting hose 17, and the other end of the connecting hose 17 is connected to a needle 13. The needle 13 is inserted into the adjusting plate 9. The conductive plate 10 contacts the needle 13 for conduction. The positive pole of the electrostatic generator 14 is connected to the conductive terminal 10-1, and the negative pole of the electrostatic generator 14 is connected to the receiving roller 15.

[0020] The application process of the electrospinning device of the present embodiment applicable to multiple needle tubes is as follows:

[0021] The spinning polymer precursor solution is added into the syringe 12, and the syringe 12 is placed in the syringe groove of the lower clamp plate 3 of the clamp, and the upper clamp plate 4 is buckled. One end of the connecting hose 17 is connected to the liquid outlet of the syringe 12, and the other end of the connecting hose 17 is connected to the needle. The needle is inserted on the adjustment plate 9. The control adjustment plate 9 can adjust the spinneret angle so that the needle 13 is aligned with the receiving roller 15. The positive electrode of the electrostatic generator 14 is connected to the conductive end 10-1, and the negative electrode of the electrostatic generator 14 is connected to the receiving roller 15. The position of the control plate 8 is adjusted to adjust the distance between the needle 13 and the receiving roller 15, and the propulsion speed of the electric push plate 11 is set. The electrostatic generator 14 is turned on, and the stepping motor 7 is turned on to make the syringe 12 reciprocate. The polymer precursor solution forms a Taylor cone under the action of the high-voltage electrostatic field and is sprayed on the receiving roller 15 to prepare a nano-electrospinning fiber material.

[0022] The electrospinning device of this embodiment is convenient for clamping multiple syringes, and the arrangement of the insert plate and the adjustment plate enables the adjustment of the spinning angle and the spinning distance, and the clamp is driven by the lead screw to perform reciprocating motion.

Claims

1. An electrospinning device suitable for multiple needle tubes, characterized in that The electrostatic spinning device suitable for multiple needle tubes comprises a base (1), two support plates (2), a fixture, a lead screw (6), a stepping motor (7), a plug plate (8), an adjustment plate (9), an electric push plate (11), an electrostatic generator (14) and a receiving roller (15), wherein the two support plates (2) are respectively arranged on the left and right sides of the upper surface of the base (1); the fixture comprises a lower fixture plate (3), an upper fixture plate (4) and two slide blocks (5), and the lower fixture plate (3) and the upper fixture plate (4) are respectively provided with a plurality of syringe grooves, and the syringe (12) is placed in the groove of the syringe, the lower clamp plate (3) and the upper clamp plate (4) are buckled together, two sliders (5) are arranged on the lower surface of the lower clamp plate (3), the clamp is placed on the two support plates (2), the lead screw (6) passes through the two support plates (2) and the two sliders (5), the lead screw (6) is connected to the two support plates (2) by threads, and the lead screw (6) is driven to rotate by a stepping motor (7); the electric push plate (11) is arranged at the rear of the syringe (12), and the electric push plate (11) is in contact with the piston of the syringe (12); A slot is provided on the base (1), and a plug plate (8) is plugged into the slot of the base (1). The plug plate (8) moves forward and backward in the slot. An adjustment plate (9) is hingedly connected to the end of the plug plate (8). A conductive plate (10) is attached to the adjustment plate (9). The conductive plate (10) has a conductive terminal (10-1). The liquid outlet of the syringe (12) is connected to one end of a connecting hose (17). The other end of the connecting hose (17) is connected to a needle (13). The needle (13) is plugged into the adjustment plate (9). The positive electrode of the electrostatic generator (14) is connected to the conductive terminal (10-1), and the negative electrode of the electrostatic generator (14) is connected to a receiving roller (15).

2. The electrospinning device suitable for multiple needle tubes according to claim 1, characterized in that Limiters (19) are respectively arranged on the two support plates (2).

3. The electrospinning device suitable for multiple needle tubes according to claim 1, characterized in that A guide protrusion (18) is provided on the lower surface of the lower clamp plate (3) along the width direction of the clamp, and the tops of the two support plates (2) are provided with guide grooves, in which the guide protrusion (18) is located.

4. The electrospinning device suitable for multiple needle tubes according to claim 1, characterized in that The lower fixture plate (3) and the upper fixture plate (4) are respectively provided with 3 to 6 syringe grooves.

5. The electrospinning device suitable for multiple needle tubes according to claim 1, characterized in that The lower fixture plate (3) and the upper fixture plate (4) are buckled together by plugging or bolting.

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