CN210140649U

CN210140649U - Electrostatic spinning machine

Info

Publication number: CN210140649U
Application number: CN201920416638.1U
Authority: CN
Inventors: 顾军
Original assignee: Nanjing Dong Yan Hydrogen Energy Technology Co Ltd
Current assignee: Nanjing Dong Yan Hydrogen Energy Technology Co Ltd
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2020-03-13
Anticipated expiration: 2029-03-29

Abstract

The utility model discloses an electrostatic spinning machine detects the syringe internal pressure and sends the signal of telecommunication to servo motor through pressure sensor, installs a plurality of shower nozzles under the carousel, and servo motor drives the rotatory mode change shower nozzle of carousel, can change the shower nozzle of unable work under the condition that does not influence electrostatic spinning machine normal work, improves electrostatic spinning machine's production efficiency, changes the station at the shower nozzle and has the collection box, carries out recycle to the spinning liquid.

Description

Electrostatic spinning machine

Technical Field

The utility model belongs to the electrostatic spinning field, especially, electrostatic spinning machine.

Background

The preparation of nanofibrous materials through electrostatic spinning technology is one of the most important academic and technical activities in the field of materials science and technology in the world in recent decades. Electrostatic spinning has become one of the main approaches for effectively preparing nanofiber materials due to the advantages of simple manufacturing device, low spinning cost, various spinnable substances, controllable process and the like. Electrospinning technology has produced a wide variety of nanofibers including organic, organic/inorganic composite, and inorganic nanofibers.

However, the problem of blocking often appears in the shower nozzle of electrostatic spinning machine in actual production process, and when the problem that the shower nozzle blockked up appeared, it was big to change, wash, dredge the work degree of difficulty to the shower nozzle, had the extravagant problem of spinning solution when changing, washing, dredging, and need shut down the machine when changing, wash, dredging and change and seriously influence the production progress.

SUMMERY OF THE UTILITY MODEL

The production schedule is seriously influenced by the blockage problem which often occurs in the practical production of the electrostatic spinning machine.

In order to solve the problem, the utility model provides an electrostatic spinning machine, its aim at is through fixing a plurality of shower nozzles in rotary mechanism's carousel bottom, detects the syringe internal pressure through pressure sensor, and the rotatory carousel that drives of control servo motor rotates, reaches the purpose of changing the shower nozzle under the condition that does not influence production work.

In order to achieve the above purpose, the utility model discloses a technical scheme is: an electrospinning machine comprising: a rotating member for supporting a frame of the rotating member;

the rotating member includes: a servo motor;

the power transmission mechanism comprises a driving pinion connected with an output shaft key of the servo motor, a driven bull gear meshed with the driving pinion, and a rotating shaft connected with the driven bull gear;

the rotating mechanism is a rotating disc which is in key connection with the top of the rotating shaft; an injector is arranged above the rotary table, and four spray heads are detachably arranged below the rotary table through threaded columns; the sprayer is sequentially provided with a cylinder and a circular truncated cone which are connected along the axial direction from the bottom end to the top end, and two sides of the cylinder are provided with side planes; the spray head is sequentially provided with a threaded hole, a taper hole and a through hole which are connected along the axis direction from the bottom end to the top end of the spray head, wherein the threaded hole of the spray head is a sealing pipe thread;

and the pressure sensor is communicated with the inside of the injector and is arranged at the side position of the injector.

In a further embodiment, the frame is composed of a rectangular bottom plate, four corners below the bottom plate are provided with ground feet, and the bottom ends of the ground feet are in contact with the ground; the bottom plate can keep a balanced state to adapt to various terrains by adjusting the nuts on the feet.

An open recycling box is arranged on the upper surface of the bottom plate; wherein the bottom of the side surface of the recovery box is communicated with the liquid storage box through an output pipe of the electrostatic spinning component; can pour into open collection box through the spinning solution that will block up in the shower nozzle when changing the shower nozzle in, then send spinning solution back to the receiver tank in the electrostatic spinning part through the output tube of electrostatic spinning part, recycle.

Four adjusting screws are further arranged in the middle position above the bottom plate; and a motor fixing plate is arranged above the adjusting screw rod. The motor fixing plate can keep a balanced state relative to the bottom plate by adjusting the height of the nut on the adjusting screw rod.

In a further embodiment, the servo motor is fixed below the motor fixing plate, and an output shaft of the servo motor passes through and is exposed above the motor fixing plate. The working height and balance of the servo motor can be more conveniently adjusted by fixing the servo motor under the motor fixing plate.

In a further embodiment, the drive pinion is concentric with the output shaft of the servo motor and disposed above the motor fixing plate; the driving pinion is fixed above the motor fixing plate, so that more operation space is provided for convenient installation.

In a further embodiment, a through hole and a key slot are formed in the center of the driven gearwheel, and the driven gearwheel is positioned above the motor fixing plate; the through hole and the key groove formed in the center of the driven gearwheel are low in production cost and convenient to connect and transmit, and are fixed above the motor fixing plate and convenient to install.

In a further embodiment, the rotating shaft is fixed on the bottom plate, sequentially penetrates through the motor fixing plate and the driven gearwheel along the axial direction of the bottom end of the rotating shaft, and extends to the position above the driven gearwheel; wherein the rotating shaft is connected with the driven gearwheel key; the rotating shaft is fixed on the bottom plate and penetrates through the motor fixing plate, so that the rotating shaft is not inclined in the rotating process, and the rotating is more stable; the movable space of the rotating shaft extending to the upper part of the driven bull gear is larger, and the assembly is convenient; the rotating shaft and the driven gearwheel are connected by a key, so that the rotation is simpler and more direct, and the production and assembly are simpler.

In a further embodiment, the top end of the rotating disc is provided with an annular convex structure; the weight of the turntable can be reduced, and the production cost is reduced.

Four threaded columns are equally arranged on the circumference of the bottom end of the rotary table, and through holes are formed in the bottom end axis direction of the threaded columns to the upper surface of the annular convex structure; the circumference equipartition setting of screw thread post can be easier sets up servo motor's rotational speed, and the trompil can reduce process time.

Wherein the thread on the threaded column is a seal pipe thread; can ensure the sealing performance and prevent the spinning solution from leaking from the threaded connection part.

In a further embodiment, the spray head is sequentially provided with a cylinder and a circular truncated cone which are connected along the axial direction from the bottom end to the top end, and two sides of the cylinder are provided with side planes; the side planes on the two sides facilitate the disassembly and assembly of the spray head by using a spanner.

The spray head is sequentially provided with a threaded hole, a taper hole and a through hole which are connected along the axis direction from the bottom end to the top end of the spray head, wherein the threaded hole of the spray head is a sealing pipe thread; can ensure the sealing performance and prevent the spinning solution from leaking from the threaded connection part.

In a further embodiment, the syringe is cylindrical in shape; the stepped through hole is formed in the top end axis direction of the injector, the bottom surface of the stepped part of the stepped through hole formed in the injector is connected with the bottom surface of the injector, and the stepped part of the stepped through hole of the injector is provided with a chamfer; the spinning solution is guided by the design of the stepped through hole and the chamfer of the stepped part, so that the spinning solution is prevented from leaking from the bottom end of the injector.

In a further embodiment, the top end of the injector is fixed on the electrostatic spinning component and is communicated with the liquid storage tank through an input pipe of the electrostatic spinning component, and the bottom end of the injector is in sliding connection with the upper surface of the rotary table; the leakage of the spinning solution can be prevented by a tight sliding connection.

In a further embodiment, a predetermined value is provided within the pressure sensor; the pressure sensor can detect the internal pressure of the injector; the pressure sensor controls the servo motor by sending an electric signal; the pressure sensor can detect the internal pressure of the injector, detect whether the pressure exceeds a preset value arranged in the pressure sensor, judge whether the problem of nozzle blockage occurs, and send an electric signal to control the rotation of the servo motor when the pressure exceeds the preset value arranged in the pressure sensor.

Has the advantages that: the spray head is not directly connected with the injector any more, the rotating mechanism is additionally arranged between the spray head and the injector, the bottom of a rotary table of the rotating mechanism is in threaded connection with a plurality of spray heads, and the bottom surface of the injector is in sliding connection with the upper surface of the rotary table, so that waste caused by outflow of spinning solution can be prevented; pouring the spinning solution blocked in the spray nozzle into a recovery box in the manual replacement process, and returning the spinning solution to a liquid storage box in the electrostatic spinning part through an output pipe for recycling; the replacement work of the spray head in the process of not influencing production is achieved, and the problem of waste in the replacement process is also avoided.

Drawings

FIG. 1 is a schematic diagram of the working principle of the electrospinning machine.

FIG. 2 is a schematic cross-sectional view of an electrospinning machine.

FIG. 3 is a top view of the electrospinning machine.

Fig. 4 shows an axial view of the electrospinning machine.

Fig. 5 is a schematic structural view of a rotating shaft of the electrospinning machine.

Fig. 6 is a schematic structural view of the showerhead.

Shown in fig. 1 to 6: the electrostatic spinning part comprises an electrostatic spinning part 1, an injector 2, a pressure sensor 3, a rotary disc 4, a spray head 5, a rotating shaft 6, a driven large gear 7, a driving small gear 8, a motor fixing plate 9, a servo motor 10, a recovery box 11, a bottom plate 12, a ground foot 13, a liquid storage box 14, an input pipe 15, an output pipe 16, a power supply connector 17, a high-voltage power supply 18, a material receiving disc 19, an adjusting screw 20, a passing shaft 61, a supporting shaft 62, a passing shaft 63, a driven shaft 64 and a transmission shaft 65.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.

An electrospinning machine comprising: the bottom plate 12 is rectangular, a through hole is respectively arranged at four corners of the bottom plate 12, at least eight threaded holes and a unthreaded hole are arranged among the four through holes, the surface roughness of the unthreaded hole is 1.6 mu m, the material is Q235 carbon steel, and the surface is subjected to blackening treatment.

The anchor 13 is provided with four anchors 13, and the anchor 13 is an adjusting anchor with the model of UF-100Z.

The collection box 11 is uncovered box up, and the ground four sides of box extend there is the fixed plate, and it has the through-hole that is used for fixing to open on the fixed plate, open the side bottom of collection box 11 has the through-hole, the material of collection box 11 is 304 stainless steel.

The adjusting screw rods 20 are four adjusting screw rods 20, the adjusting screw rods 20 are threaded on the whole, threaded columns with side planes are arranged on two sides of the middle of each adjusting screw rod, the adjusting screw rods are made of No. 45 carbon steel, and the surfaces of the adjusting screw rods are subjected to blackening treatment.

The motor fixing plate 9 is characterized in that four corners of the motor fixing plate 9 are respectively provided with a through hole with the diameter larger than that of the adjusting screw rod 20, a large through hole and a small through hole are arranged along the central line of the motor fixing plate 9, four through holes are evenly distributed around the circumference of the large through hole, the surface roughness of the small through holes is 1.6 mu m, the motor fixing plate 9 is made of Q235 carbon steel, and the surface is blackened.

The servo motor 10 is provided with the model number of 32-0AF21-0AA 0.

The center of the driving pinion 8 is provided with a through hole and a key groove, and teeth on the driving pinion 8 need to be quenched.

The driven gearwheel 7 is provided with a through hole and a key groove at the center, and teeth on the driven gearwheel 7 need quenching treatment.

The rotating shaft 6 is provided with a threaded hole at the bottom end and the top part of the rotating shaft 6 respectively, and the rotating shaft 6 is sequentially provided with a through shaft 61, a supporting shaft 62, a penetrating shaft 63, a driven shaft 64 and a transmission shaft 65 which are connected from the bottom end axis direction to the top part; wherein the pass-through shaft 61 is smaller than the support shaft 62, wherein the support shaft 62 is larger than the pass-through shaft 63, the pass-through shaft 63 is larger than the driven shaft 64, and the driven shaft 64 is larger than the transmission shaft 65; a key groove is formed at the bottom of the driven shaft 64, and a clamp spring groove is formed above the key groove; wherein the transmission shaft 65 is provided with a key groove; wherein the surface roughness of the passing shaft 61 and the passing shaft 63 is 1.6 μm, the surface roughness of the supporting shaft 62 is 6.3 μm, the surface roughness of the driven shaft 64 and the transmission shaft 65 is 3.2 μm, the material is No. 45 carbon steel, and the surface is subjected to chromium plating treatment.

The rotary table 4 is provided with a through hole and a key groove along the central axis direction of the rotary table 4, an annular convex structure is arranged at the outer circle position of the top end of the rotary table 4, the surface roughness of the upper surface of the annular convex structure is 1.6 mu m, four threaded columns with sealing pipe threads are equally arranged on the circumference of the bottom end of the rotary table 4, the centers of the threaded columns are provided with the through holes, and the surface of the rotary table 4 is subjected to chromium plating treatment.

The spray head 5 is provided with four spray heads 5, the spray heads 5 are cylinders and extend downwards to form a circular truncated cone structure, the bottom ends of the circular truncated cones are connected with the cylinders, and two sides of each cylinder are provided with side planes convenient for using a wrench; a threaded hole, a taper hole and a through hole of the sealing pipe which are connected with each other are sequentially formed along the axis direction of the top end of the spray head 5 to the bottom end; the threaded hole of the spray head 5 is a sealing pipe thread; wherein the threaded hole of the sealing pipe in the effusion cavity has the same height as the cylinder in the shape of the spray head 5. And performing chromium plating treatment on the surface of the spray head 5.

The syringe 2, the appearance of syringe 2 is the cylinder, and four screw holes have been distributed equally to cylinder top circumference, and it has two unthreaded holes to the bottom of meeting to open in proper order along the top axis direction of cylinder, the unthreaded hole that meets with the top of cylinder is greater than the unthreaded hole that meets with the bottom of cylinder, and the ladder section that two unthreaded holes meet is opened there is the chamfer. The surface roughness of the bottom surface of the injector 2 is 1.6 μm, and the surface is subjected to chromium plating treatment.

The pressure sensor 3, the model of the pressure sensor 3 is MPX 2300.

The assembly process is that four feet 13 firstly pass through four through holes at four corners below the bottom plate 12, and the height and balance of the bottom plate 12 are adjusted and fixed by nuts.

Then fixing the four adjusting screws 20 at the four threaded holes in the middle of the bottom plate 12 by using nuts; the passing shaft 61 of the rotating shaft 6 passes through the unthreaded hole in the middle of the bottom plate 12 and the rotating shaft 6 is fixed above the bottom plate 12 by using a screw to pass through the unthreaded hole; the open end of the recycling box 11 is upward, the side surface with the through hole faces the electrostatic spinning component 1, the output pipe 16 of the electrostatic spinning component 1 is communicated with the unthreaded hole on the side surface of the recycling box 11, and the recycling box 11 is fixed on the bottom plate 12 by penetrating through the through hole on the fixing plate by using screws.

Then, the motor fixing plate 9 is fixed to the tip of the adjusting screw 20 using a nut, wherein a small through hole in the direction of the center line of the motor fixing plate 9 is penetrated by the penetrating shaft of the rotating shaft 6.

Then, the end cover of the servo motor 10 is abutted to the bottom surface of the motor fixing plate 9 and fixed by using screws, and the output shaft of the servo motor 10 is concentric with the large through hole of the motor fixing plate 9 and penetrates through the motor fixing plate 9.

Then, the driving pinion 8 is fixed on an output shaft of the servo motor 10 by key connection, the driven gearwheel 7 is fixed on a driven shaft 64 of the rotating shaft 6 by key connection and limited by a snap spring, and the driven gearwheel 7 is adjusted to be meshed with the driving pinion 8.

Then the rotary table 4 is connected with a transmission shaft 65 key at the top end of the rotating shaft 6, and the rotary table 4 is fixed with the transmission shaft 65 of the rotating shaft 6 by using screws; the four spray heads 5 are then fixed to the threaded columns below the turntable 4 using a threaded connection.

The tip of the injector 2 is then fixed to the work station of the electrospinning element 1 using screws, thus completing the assembly process of the apparatus.

After the assembling process of the equipment is completed, the rotating disc 4 is adjusted, the upper surface of the adjusted rotating disc 4 is required to be in sliding connection with the bottom surface of the injector 2, a spray head 5 is arranged on the rotating disc 4 and is concentric with the injector 2 to be positioned at a working position of the electrostatic spinning part 1, a power supply connector 17 for connecting a high-voltage power supply 18 is arranged at the working position of the electrostatic spinning part 1, the spray head 5 positioned at the working position is abutted against the power supply connector 17, and a material receiving disc 19 in the electrostatic spinning part 1 is arranged below the spray head 5 positioned at the working position; there is a spray head 5 above the recovery tank 11, which is a replacement station; and two spray heads 5 are positioned above the bottom plate 12 and are work stations.

The working principle is as follows: when the electrostatic spinning part 1 normally works, the liquid storage tank 14 inputs spinning liquid into the injector 2, the spinning liquid is sprayed out from the injector 2 and the spray head 5, the spray head 5 of the working station is connected with the high-voltage power supply 18 through the power supply connector 17, the grounding voltage of the take-up disc 19 is low, a magnetic field is formed between the spray head 5 of the working station and the take-up disc 19, and the spinning liquid forms nano fibers and falls on the take-up disc 19 under the action of high-voltage static electricity and the magnetic field in the spraying process of the spinning liquid.

When the nozzle 5 is blocked, the spinning solution in the injector 2 cannot be sprayed out, so that the pressure in the injector 2 rises, and when the pressure sensor 3 detects that the pressure in the injector 2 rises to a preset value, the nozzle 5 is judged to be blocked, and an electric signal is sent to the servo motor 10 in the rotating mechanism.

The servo motor 10 receives the electric signal transmitted by the pressure sensor 3, drives the rotary table 4 to rotate and replace the spray head 5, the spray head 5 which cannot normally work is sent out, the spray head 5 which can normally work reaches a station and is connected with the high-voltage power supply 18 through the power supply connector 17, a magnetic field is formed between the spray head 5 and the material receiving disc 19, the spinning solution forms nano fibers and falls on the material receiving disc 19 under the action of high-voltage static electricity and the magnetic field in the spinning solution spraying process, the pressure in the injector 2 is reduced, the pressure sensor 3 does not send the electric signal to the servo motor 10 any more, the output shaft of the servo motor 10 stops rotating, and the electrostatic spinning machine.

The shower nozzle 5 that can't normally work that is sent out leaves power connection 17, carries out the manual work and changes the operation, and the manual work is changed the in-process and is poured the spinning liquid that blocks up in shower nozzle 5 into collection box 11, and the spinning liquid gets back to the liquid reserve tank 14 in the electrostatic spinning part 1 through output tube 16, and recycle accomplishes the change, waits for next change work.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be modified to perform various equivalent transformations, which all belong to the protection scope of the present invention.

Claims

1. An electrospinning machine, comprising: a rotating member and a frame for supporting the rotating member; the rotating member includes:

a servo motor (10);

the power transmission mechanism comprises a driving pinion (8) in key connection with an output shaft of the servo motor (10), a driven gearwheel (7) meshed with the driving pinion (8), and a rotating shaft (6) in key connection with the driven gearwheel (7);

the rotating mechanism is a rotating disc (4) connected with the top key of the rotating shaft (6); an injector (2) is arranged above the rotary table (4), and four spray heads (5) are detachably arranged below the rotary table (4) through threaded columns; the sprayer (5) is sequentially provided with a cylinder and a circular truncated cone which are connected along the axial direction from the bottom end to the top end, and two sides of the cylinder are provided with side planes; the spray head is characterized in that a threaded hole, a taper hole and a through hole which are connected are sequentially formed in the axial direction from the bottom end to the top of the spray head (5), wherein the threaded hole of the spray head (5) is a sealing pipe thread;

and a pressure sensor (3) which is communicated with the inside of the injector (2) and is arranged at the side position of the injector (2).

2. An electrospinning machine according to claim 1, wherein the frame is composed of a rectangular base plate (12), and feet (13) are provided at four lower corners of the base plate (12), wherein the bottom ends of the feet (13) are in contact with the ground;

an open recycling box (11) is arranged on the upper surface of the bottom plate (12); wherein the bottom of the side surface of the recovery box (11) is communicated with the liquid storage box (14) through an output pipe (16) of the electrostatic spinning component (1);

four adjusting screws (20) are further arranged in the middle position above the bottom plate (12); and a motor fixing plate (9) is arranged above the adjusting screw rod (20).

3. An electrospinning machine according to claim 2, wherein the servo motor (10) is fixed below the motor fixing plate (9), and the output shaft of the servo motor (10) passes through and is exposed above the motor fixing plate (9).

4. An electrospinning machine according to claim 2, wherein the drive pinion (8) is concentric with the output shaft of the servo motor (10) and is disposed above the motor fixing plate (9).

5. An electrostatic spinning machine according to claim 2, characterized in that the driven gearwheel (7) has a through hole and a key slot in the center, and the driven gearwheel (7) is located above the motor fixing plate (9).

6. The electrostatic spinning machine according to claim 2, wherein the rotating shaft (6) is fixed on the bottom plate (12), sequentially penetrates through the motor fixing plate (9) and the driven gearwheel (7) along the axial direction of the bottom end of the rotating shaft (6), and extends to the position above the driven gearwheel (7); wherein the rotating shaft (6) is connected with the driven gearwheel (7) in a key way.

7. An electrospinning machine according to claim 1, wherein the top end of the rotary plate (4) is provided with an annular convex structure; four threaded columns are equally arranged on the circumference of the bottom end of the rotary table (4), and through holes are formed in the bottom end axis direction of the threaded columns to the upper surface of the annular convex structure; wherein the thread on the threaded column is a sealing pipe thread.

8. An electrospinning machine according to claim 1, wherein the injector (2) has a cylindrical shape; a stepped through hole is formed in the top end axial direction of the injector (2), the bottom surface of the stepped part of the stepped through hole formed in the injector (2) is connected with the bottom surface of the injector (2), and the stepped part of the stepped through hole of the injector (2) is provided with a chamfer; the bottom end of the injector (2) is connected with the upper surface of the rotary disc (4) in a sliding way.

9. An electrospinning machine according to claim 2, wherein the top end of the injector (2) is fixed to the electrospinning element (1) and communicates with the reservoir (14) through the inlet tube (15) of the electrospinning element (1).