Multi-head handheld electric spinning instrument

Abstract

The invention belongs to the technical field of high-voltage electrostatic application, and particularly provides a multi-head handheld electric spinning instrument. By means of the multi-pusher structure in modular design, the efficiency bottleneck of single-head spinning of traditional handheld equipment is broken through, the multiple pushers are supported to be flexibly arranged in a linear shape or a V shape and dynamically switched, and the multi-pusher spinning machine has the advantages of being small in size, convenient to store and expand, flexible and convenient to use, wide in application occasion, safe, efficient and the like.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of high-voltage electrostatic application, and particularly provides a multi-head handheld electric spinning instrument. BACKGROUND

[0002] High-voltage spinning technology, also known as electrospinning technology, is an advanced manufacturing process that uses a high-voltage electrostatic field to charge and eject polymer solution or melt, and then forms nanometer to micrometer fibers. This technology applies a high-voltage electrostatic field of several thousand to several ten thousand volts between the spinneret and the receiving device, so that the polymer droplet overcomes the surface tension to form a Taylor cone, and is stretched and refined under the action of the electric field force, and finally solidifies to form a continuous fiber.

[0003] Traditional high-voltage electrostatic spinning equipment usually adopts a fixed design, relies on large high-voltage power supply, precision syringe pump and constant temperature and humidity environment, and has limitations such as large size, complex operation, high cost, and inability to be portable and mobile, which is difficult to meet the needs of on-site rapid detection, personalized customization and mobile production. In order to break through this bottleneck, a handheld spinning instrument has emerged. This kind of equipment integrates a miniature high-voltage generating module, a lightweight electric push structure and a modular spinneret design, compresses the spinning system to a portable size, and users can operate and adjust parameters (such as voltage, push speed, fiber diameter) in real time. The handheld spinning instrument can realize instant fiber manufacturing in a low-cost and high-flexibility manner, which significantly expands the application boundary of high-voltage electrostatic spinning technology.

[0004] Although the handheld spinning instrument has achieved a breakthrough in portability, the current mainstream products still have the disadvantage of low spinning efficiency. The single spinning head design allows only a single fiber to be generated each time, and if multi-layer structure, multi-material composite fiber or large-scale fiber membrane needs to be prepared, the syringe and spinning liquid need to be replaced repeatedly or the operation needs to be repeated, which greatly reduces the production efficiency and increases the risk of human error. Moreover, when preparing multi-layer fiber structures, different diameter or different packing density fiber structures are often needed, and multiple spinning heads with different arrangements are needed. Therefore, there is an urgent need to design a multi-head handheld spinning instrument that can achieve different arrangement modes and has high spinning efficiency. SUMMARY

[0005] The purpose of the present application is to overcome the drawbacks of the prior art, and to provide a multi-head handheld electric spinning instrument to improve the pushing precision, and to be light in weight, convenient to carry, flexible to use, and high in spinning efficiency.

[0006] The present application provides a multi-head handheld electric spinning instrument, characterized in that the multi-head electric spinning instrument comprises a handheld device (1) for providing power and a plurality of pushers (2) for realizing spinning. The handheld device (1) comprises a shell (101); The pusher comprises a pusher shell (201), a slip ring assembly (202), an electric push mechanism (204) and a syringe (206), the slip ring assembly (202) is sleeved outside the pusher shell (201); the syringe (206) is filled with injection spinning solution, and the electric push mechanism (204) is used for realizing the advance and retreat of the syringe (206); The upper end of the hand-held device shell (101) is provided with a mortise (101a), the lower end of the pusher shell (201) is provided with a tenon (201a), the pusher shell (201) is arranged above the hand-held device shell (101) and is connected through the corresponding tenon (201a) and mortise (101a) matching connection, and the tenon (201a) and mortise (101a) are both provided with conductive contacts; The slip ring assembly (202) comprises a first slip ring (202a) and a second slip ring (202b), the main bodies of the first slip ring (202a) and the second slip ring (202b) are both circular rings, the circular ring of the first slip ring (202a) is provided with a groove part and a contact, the circular ring of the second slip ring (202b) is provided with a protruding part matched in size and a contact, and adjacent pushers (2) are connected through the slip ring assembly (202). The tenon (201a) contact and the second slip ring (202b) contact are connected one by one in the electric push mechanism (204) through wires; the second slip ring (202b) contact and the first slip ring (202a) contact are connected one by one in the electric push mechanism (204) through wires; and a parallel relationship is formed on the circuit of the plurality of pushers (2) after being connected.

[0007] The hand-held device (1) further comprises a battery (102), a motor power supply boosting module (103), a power supply boosting module (104), a pulse generator (105), a potentiometer (106), a high-voltage electrostatic switch (107), a motor forward and reverse button (108), a power switch (109), a high-voltage A pole (110) and a charging module (111); the battery (102), the motor power supply boosting module (103), the power supply boosting module (104), the pulse generator (105) and the charging module (111) are arranged inside the hand-held device shell (101), the potentiometer (106), the high-voltage electrostatic switch (107), the motor forward and reverse button (108) and the power switch (109) are arranged at the rear end outside the hand-held device shell (101), and the high-voltage A pole (110) is arranged at the front end of the hand-held device shell (101) and is connected with the internal circuit through wires.

[0008] The pusher further comprises a high-voltage generating module (203), a motor driving module (205) and a high-voltage B pole (207); the high-voltage generating module (203), the electric push mechanism (204) and the motor driving module (205) are arranged inside the pusher shell (201); a recess (201b) is arranged on the top of the rear side of the pusher shell (201), a strip-shaped hole (201c) is arranged on the recess (201b), and the syringe (206) is arranged at the recess (201b) of the pusher shell (201), with the front end needle sequentially penetrating into the high-voltage B pole (207) and the pusher shell (201) and then penetrating out of the front end of the pusher shell (201).

[0009] The electric push mechanism (204) comprises a motor (204a), a sliding block (204b) and a screw rod (204c), the screw rod (204c) is connected to the output end of the motor (204a), and the sliding block (204b) is arranged on the screw rod (204c) and has its upper end penetrating out of the pusher shell (201) through the strip-shaped hole (201c) and moving back and forth along the screw rod (204c) under the rotation of the motor (204a) to push the syringe (206).

[0010] The battery (102) is connected to the charging module (111) through a wire, and the battery (102) is charged through the charging module (111); the battery (102) is connected to the power supply voltage boosting module (104) through a wire to supply power to the pulse generator (105).

[0011] The potentiometer (106) is connected to the pulse generator (105) to adjust the pulse frequency; the pulse signal is input to the motor driving module (205) to control the rotating speed of the motor (204a) and then control the moving speed of the sliding block (204b) and then control the pushing speed of the syringe (206).

[0012] The motor forward and reverse rotation button (108) is used to change the rotating direction of the motor (204a) and then change the moving direction of the sliding block (204b).

[0013] The battery (102) is connected to the motor voltage boosting module (103) through a wire, and the boosted power supply is connected to the motor driving module (205) to provide power for the rotation of the motor.

[0014] The battery (102) is connected to the high-voltage generating module (203) through a wire, the output end of the high-voltage generating module (203) is connected to the high-voltage A pole (110) and the high-voltage B pole (207) through wires to generate a high-voltage electrostatic field between the high-voltage A pole (110) and the high-voltage B pole (207), and the high-voltage electrostatic switch (107) controls the on-off of the circuit; the power switch (109) is used to control the on-off of the circuit of the whole device and the on-off of the circuit of the motor (204a).

[0015] The plurality of pushers (2) are arranged in a "I" shape or a "V" shape, and the electric spinning instrument can be switched between a single pusher (2), a plurality of pushers arranged in a "I" shape and a plurality of pushers arranged in a "V" shape.

[0016] The present application has the following beneficial effects: The present application breaks through the bottleneck of low efficiency of single head spraying of traditional handheld devices by the modular design of the multi-push structure, supports flexible arrangement and dynamic switching of a plurality of pushers in a "I" shape or a "V" shape, has the advantages of small size, convenient storage, convenient expansion, flexible and convenient use, wide application occasions and high work efficiency. The plurality of pushers form a "I" shape, the handheld device moves horizontally, the thickness of the spinning film can be quickly increased, the handheld device moves vertically, the width of the spinning film can be increased, the spinning film can be quickly and widely covered, and the spinning efficiency is improved. The plurality of pushers form a "V" shape to increase the thickness and width. The plurality of pushers are combined, each pusher can use a plurality of spinning solutions with different functions to spin at the same time, and a spinning effect with multiple functions is generated. Moreover, the present application realizes lightweight and portability of the equipment by the tenon-mortise quick disassembly structure cooperating with the slip ring assembly and parallel circuit design, ensures independent power supply and accurate parameter control of each nozzle, meets the needs of on-site rapid detection, emergency manufacturing and personalized customization scenes. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the external structure of the pusher in the present application; Figure 3 It is a schematic diagram of the internal structure of the pusher in the present application; Figure 4 It is a schematic diagram of the external structure of the handheld device in the present application; Figure 5 It is a schematic diagram of the internal structure of the handheld device in the present application; Figure 6 It is a schematic diagram of the structure of the slip ring combination in the present application; Figure 7 It is a schematic diagram of the structure of the first slip ring in the present application; Figure 8 It is a schematic diagram of the structure of the second slip ring in the present application; Figure 9 It is a schematic diagram of the combination of one handheld device and one pusher in the present application; Figure 10 It is a schematic diagram of the combination of one handheld device and three pushers in a "I" shape in the present application; Figure 11 This is a schematic diagram showing the state in which a handheld device and three pushers are combined into a "V" shape in this invention; Figure 12 This is a schematic diagram of the electric control system of the present invention; In the diagram: 1. Handheld device; 101. Handheld device housing; 101a. Recess; 102. Battery; 103. Power supply boost module; 104. Power supply boost module; 105. Pulse generator; 106. Potentiometer; 107. High-voltage electrostatic switch; 108. Motor forward / reverse button; 109. Power switch; 110. High-voltage A pole; 111. Charging module; 2. Actuator; 201. Actuator housing; 201a. Tenon; 201b. Recess; 201c. Strip hole; 202. Slip ring assembly; 202a. First slip ring; 202b. Second slip ring; 203. High-voltage generation module; 204. Electric actuation mechanism; 204a. Motor; 204b. Slider; 204c. Lead screw; 205. Motor drive module; 206. Syringe; 207. High-voltage B pole. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] Example 1 like Figure 1 , 9 As shown, this embodiment provides a multi-head electric spinning device, including a handheld device 1 and a pusher 2.

[0020] like Figure 2 , 3 As shown, the handheld device 1 includes a handheld device housing 101, a battery 102, a power supply boost module 103, a power supply boost module 104, a pulse generator 105, a potentiometer 106, a high-voltage electrostatic switch 107, a motor forward / reverse button 108, a power switch 109, a high-voltage A terminal 110, and a charging module 111. The battery 102, power supply boost module 103, power supply boost module 104, pulse generator 105, and charging module 111 are located inside the handheld device housing 101. The potentiometer 106, high-voltage electrostatic switch 107, motor forward / reverse button 108, and power switch 109 are located at the rear outer side of the handheld device housing 101. The high-voltage A terminal 110 is located at the front end of the handheld device housing 101 and is connected to the internal circuit through a wire. like Figure 4 , 5As shown, the pusher comprises a pusher shell 201, a slip ring assembly 202, a high-pressure generating module 203, an electric push mechanism 204, a motor driving module 205, a syringe 206 and a high-pressure B pole 207; the slip ring assembly 202 is sleeved outside the pusher shell 201, the high-pressure generating module 203, the electric push mechanism 204 and the motor driving module 205 are arranged inside the pusher shell 201; a recess 201b is arranged on the upper side of the rear side of the pusher shell 201, a strip-shaped hole 201c is arranged on the recess 201b, the syringe 206 is arranged at the recess 201b of the pusher shell 201, the front end needle of the syringe 206 penetrates the high-pressure B pole 207 and the pusher shell 201 in sequence and penetrates out of the front end of the pusher shell 201, and the syringe 206 is filled with spinning solution.

[0021] In the embodiment, the upper end of the hand-held device shell 101 is provided with a recess 101a, the lower end of the pusher shell 201 is provided with a tenon 201a, the pusher shell 201 is arranged above the hand-held device shell 101 and is connected by the corresponding tenon 201a and recess 101a, and the tenon 201a and the recess 101a are both provided with conductive contacts.

[0022] In the embodiment, the electric push mechanism 204 comprises a motor 204a, a sliding block 204b and a screw rod 204c, the screw rod 204c is connected to the output end of the motor 204a, the sliding block 204b is arranged on the screw rod 204c, the upper end of the sliding block 204b penetrates out of the pusher shell 201 through the strip-shaped hole 201c and moves back and forth along the screw rod 204c under the rotation of the motor 204a to push the syringe 206.

[0023] In the embodiment, the battery 102 is connected to the charging module 111 through a wire, and the battery 102 is charged by the charging module 111.

[0024] In the embodiment, the battery 102 is connected to the power supply voltage boosting module 104 through a wire to supply power to the pulse generator 105.

[0025] In the embodiment, the potentiometer 106 is connected to the pulse generator 105 to adjust the pulse frequency; the pulse signal is input to the motor driving module 205 to control the rotating speed of the motor 204a, and then control the moving speed of the sliding block 204b, and then control the pushing speed of the syringe 206.

[0026] In the embodiment, the motor forward and reverse rotation button 108 is used to change the rotating direction of the motor 204a, and then change the moving direction of the sliding block 204b.

[0027] In the embodiment, the battery 102 is connected to the motor power supply voltage boosting module 103 through a wire, the boosted power supply is connected to the motor driving module 205 to provide power for the rotation of the motor.

[0028] In this embodiment, the battery 102 is connected to the high voltage generating module 203 via a wire. The output terminal of the high voltage generating module 203 is connected to the high voltage A pole 110 and the high voltage B pole 207 via a wire, so that a high voltage electrostatic field is generated between the high voltage A pole 110 and the high voltage B pole 207. The high voltage electrostatic switch 107 controls the circuit to turn on and off.

[0029] In this embodiment, the power switch 109 is used to control the on / off state of the circuit of the entire device and the on / off state of the circuit of the motor 204a.

[0030] Example 2 like Figure 10 As shown, this embodiment provides a multi-head electric spinning device, including a handheld device 1 and three pushers 2, which are combined into a "line" configuration.

[0031] This embodiment is basically the same in structure as Embodiment 1, except for the number of pushers 2. The slip ring assembly 202 includes a first slip ring 202a and a second slip ring 202b. Both the first slip ring 202a and the second slip ring 202b are circular rings. The first slip ring 202a has a groove on its circular ring, and the second slip ring 202b has a protrusion matching its size on its circular ring. Figures 6-8 As shown. The three actuators 2 are connected by a slip ring assembly 202.

[0032] Example 3 like Figure 11 As shown, this embodiment provides a multi-head electric spinning device, including a handheld device 1 and three pushers 2, which are combined into a "V" shape.

[0033] This embodiment is basically the same in structure as embodiment 2, except that the three pushers 2 are combined in shape.

[0034] In use, the high-voltage A electrode 110 is first fixedly connected to the other end where an electrostatic field needs to be formed. A handheld device 1 and one or more pushers 2 are combined. A syringe 206 filled with spinning solution is installed inside the pusher 2. The power switch 109 is turned on, the direction of movement of the slider 204b is confirmed, and the high-voltage electrostatic switch 107 is turned on to begin spinning. After the work is completed, the motor 204a is rotated in the opposite direction using the motor forward / reverse button 108, the slider 204b is returned to its initial position, and the syringe 206 is removed.

[0035] In this invention, multiple pushers 2 are connected by a slip ring assembly 202. The slip ring assembly 202 can rotate outside the pusher 2. Multiple pushers 2 can be combined into various shapes, including but not limited to "straight line" and "V-shape".

[0036] The above examples are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A multi-head handheld electric spinning apparatus, characterized in that, The multi-head electric spinning instrument comprises a hand-held device (1) for providing power and a plurality of pushers (2) for realizing spinning; The hand-held device (1) comprises a shell (101); The pusher comprises a pusher shell (201), a slip ring assembly (202), an electric push mechanism (204) and a syringe (206), the slip ring assembly (202) is sleeved outside the pusher shell (201); the syringe (206) is filled with spinning solution, and the electric push mechanism (204) is used for realizing the advance and retreat of the syringe (206); The upper end of the hand-held device shell (101) is provided with a mortise (101a), the lower end of the pusher shell (201) is provided with a tenon (201a), the pusher shell (201) is arranged above the hand-held device shell (101) and is connected through the corresponding tenon (201a) and mortise (101a) matched connection, and the tenon (201a) and mortise (101a) are both provided with conductive contacts; The slip ring assembly (202) comprises a first slip ring (202a) and a second slip ring (202b), the main bodies of the first slip ring (202a) and the second slip ring (202b) are both circular rings, the circular ring of the first slip ring (202a) is provided with a groove part and a contact, the circular ring of the second slip ring (202b) is provided with a convex part matched in size and a contact, and adjacent pushers (2) are connected through the slip ring assembly (202); The tenon (201a) contact and the second slip ring (202b) contact are connected one by one through wires inside the electric push mechanism (204); the second slip ring (202b) contact and the first slip ring (202a) contact are connected one by one through wires inside the electric push mechanism (204); and a parallel relationship is formed on the circuit after the plurality of pushers (2) are connected.

2. The electrospinning apparatus of claim 1, wherein, The hand-held device (1) further comprises a battery (102), a motor voltage boosting module (103), a power supply voltage boosting module (104), a pulse generator (105), a potentiometer (106), a high-voltage electrostatic switch (107), a motor forward and reverse button (108), a power switch (109), a high-voltage A pole (110) and a charging module (111); the battery (102), the motor voltage boosting module (103), the power supply voltage boosting module (104), the pulse generator (105) and the charging module (111) are arranged inside the hand-held device shell (101), the potentiometer (106), the high-voltage electrostatic switch (107), the motor forward and reverse button (108) and the power switch (109) are arranged at the rear end outside the hand-held device shell (101), and the high-voltage A pole (110) is arranged at the front end of the hand-held device shell (101) and is connected with the internal circuit through wires.

3. The electrospinning apparatus of claim 1, wherein, The pusher further comprises a high-voltage generating module (203), a motor driving module (205) and a high-voltage B pole (207); the high-voltage generating module (203), the electric push mechanism (204) and the motor driving module (205) are arranged inside the pusher shell (201); a recess (201b) is arranged on the top of the rear side of the pusher shell (201), a strip-shaped hole (201c) is arranged on the recess (201b), and the syringe (206) is arranged at the recess (201b) of the pusher shell (201), with the front end needle sequentially penetrating the high-voltage B pole (207) and the pusher shell (201) and then penetrating out of the front end of the pusher shell (201).

4. The electrospinning apparatus of claim 1, wherein, The electric push mechanism (204) comprises a motor (204a), a sliding block (204b) and a screw rod (204c), the screw rod (204c) is connected to the output end of the motor (204a), and the sliding block (204b) is arranged on the screw rod (204c) and penetrates out of the pusher shell (201) through the strip-shaped hole (201c) and moves back and forth along the screw rod (204c) under the rotation of the motor (204a) to push the syringe (206).

5. An electrospinning apparatus according to claim 2, wherein The battery (102) is connected to the charging module (111) through a wire, and the battery (102) is charged through the charging module (111); the battery (102) is connected to the power supply voltage boosting module (104) through a wire to supply power to the pulse generator (105).

6. An electrospinning apparatus according to claim 2, wherein The potentiometer (106) is connected to the pulse generator (105) to adjust the pulse frequency; the pulse signal is input to the motor driving module (205) to control the rotating speed of the motor (204a) and then control the moving speed of the sliding block (204b) and then control the pushing speed of the syringe (206).

7. An electrospinning apparatus according to claim 2, wherein The motor forward and reverse rotation button (108) is used to change the rotating direction of the motor (204a) and then change the moving direction of the sliding block (204b).

8. An electrospinning apparatus according to claim 2, wherein The battery (102) is connected to the motor voltage boosting module (103) through a wire, the boosted power supply is connected to the motor driving module (205) to provide power for the rotation of the motor.

9. An electrospinning apparatus according to claim 2, wherein The battery (102) is connected to the high-voltage generating module (203) through a wire, the output end of the high-voltage generating module (203) is connected to the high-voltage A pole (110) and the high-voltage B pole (207) through wires to generate a high-voltage electrostatic field between the high-voltage A pole (110) and the high-voltage B pole (207), and the high-voltage electrostatic switch (107) controls the on-off of the circuit; the power switch (109) is used to control the on-off of the circuit of the whole device and the on-off of the circuit of the motor (204a).

10. An electrospinning apparatus according to claim 2, wherein The plurality of pushers (2) are arranged in a "I" shape or a "V" shape, and the electric spinning instrument can be switched between a single pusher (2), a plurality of pushers arranged in an "I" shape and a plurality of pushers arranged in a "V" shape.

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