CN111871683A

CN111871683A - Polyimide recoating device

Info

Publication number: CN111871683A
Application number: CN202010814237.9A
Authority: CN
Inventors: 沈亚汝; 蒋弘谷; 郑超; 徐臣; 田国荣; 高召辉; 徐若飞
Original assignee: Newpion Photonics Technology Co ltd
Current assignee: Newpion Photonics Technology Co ltd
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2020-11-03

Abstract

The invention discloses a polyimide recoating device which comprises a bottom plate, wherein a heating plate is fixedly installed at the upper end of the bottom plate, heating wires are arranged inside the heating plate, a connecting plate is fixedly installed at the upper end of the heating plate, a driving shaft is rotatably connected inside the connecting plate, a first rotary table is fixedly sleeved on the outer side of the driving shaft, a conveying belt is sleeved on the outer side of the first rotary table, and a bulge is arranged on the outer side of the first rotary table and is in contact with the conveying belt. According to the invention, by designing the pump, the pump can pump out the polyimide from the coating box and discharge the polyimide through the liquid discharge pipe, the polyimide can enter the liquid discharge pipe and then is sprayed out through the spray heads, and the polyimide is sprayed to the optical fibers below the spray heads by designing the plurality of spray heads, so that the optical fibers are coated more uniformly, and by designing the first motor to drive the optical fibers to rotate, the optical fibers are coated rotatably, and further the polyimide is coated more uniformly.

Description

Polyimide recoating device

Technical Field

The invention relates to the technical field of optical fiber processing, in particular to a polyimide recoating device.

Background

The polyimide coated optical fiber has good high and low temperature resistance and has important application in the field of optical fiber sensing. In the actual use process, a part of the polyimide coating layer is required to be removed frequently, so that the welding of the optical fiber element and the packaging of the sensor are convenient to realize, and the polyimide coating layer is required to be coated for protection after the welding is finished.

At present optic fibre when carrying out the polyimide coating, portable optic fibre is soaked in the polyimide solution, then proposes to toast, and the mode of toasting makes optic fibre probably be heated unevenly, can't reach anticipated effect, and optic fibre coating is inhomogeneous moreover, has reduced work efficiency to the condition of caking easily appears in the polyimide, leads to leveling inadequately to the coating of optic fibre.

Disclosure of Invention

The invention aims to provide a polyimide recoating device, which solves the problem of uneven coating of optical fibers, solves the problem of uneven heating easily caused by baking and heating of the optical fibers, and also solves the problem of uneven surface of the optical fibers caused by coating of agglomerated polyimide on the surface of the optical fibers.

In order to achieve the purpose, the invention provides the following technical scheme: a polyimide recoating device comprises a bottom plate, wherein a heating plate is fixedly mounted at the upper end of the bottom plate, heating wires are arranged inside the heating plate, a connecting plate is fixedly mounted at the upper end of the heating plate, the connecting plate is rotatably connected with a driving shaft, a first turntable is fixedly sleeved on the outer side of the driving shaft, a conveyor belt is sleeved on the outer side of the first turntable, a bulge is arranged on the outer side of the first turntable and is in contact with the conveyor belt, a first bevel gear is fixedly mounted on the outer side of the driving shaft, a transmission shaft is rotatably connected with the inner part of the connecting plate, a second turntable is fixedly sleeved on the outer side of the transmission shaft, a bulge is arranged on the outer side of the second turntable and is in contact with the conveyor belt, a first motor is fixedly mounted at the upper end of the bottom plate, a second bevel gear is fixedly mounted on the, the second bevel gear is meshed with the first bevel gear, a pump is fixedly mounted at the upper end of the bottom plate, a liquid discharge pipe is fixedly mounted at the upper end of the pump, a connecting sleeve is sleeved at the outer side of the liquid discharge pipe, a liquid outlet pipe is fixedly mounted at the lower end of the connecting sleeve, a liquid outlet is arranged at the lower end of the liquid outlet pipe, a spray head is arranged at the lower end of the liquid outlet pipe, a coating box is fixedly mounted at the upper end of the bottom plate, a box cover is mounted at the upper end of the coating box through screws, a feeding port is formed in the box cover, a second motor is fixedly mounted at the upper end of the box cover, a connecting seat is sleeved at the outer side of a second rotating shaft of the second motor, a connecting rod is fixedly mounted at the lower end of the connecting seat, a stirring rod, the upper end fixed mounting of spring has the filter screen, the filter screen contacts with the inner wall of scribbling the workbin, the upper end and the puddler contact of filter screen.

Preferably, the bulges are respectively arranged on the outer sides of the first rotary disc and the second rotary disc, the number of the bulges is multiple, and the bulges are uniformly distributed on the outer sides of the first rotary disc and the second rotary disc.

Preferably, the number of the transmission shafts is multiple, the transmission shafts are rotatably connected with the connecting plate, optical fibers are arranged at the upper ends of the two transmission shafts, and the optical fibers are in contact with the two transmission shafts.

Preferably, the number of the second rotating discs is multiple, and the second rotating discs are uniformly distributed in the conveying belt.

Preferably, the number of the spray heads is multiple, and the multiple spray heads are uniformly distributed at the lower end of the liquid outlet pipe.

Preferably, a liquid inlet is fixedly installed on the outer side of the pump, and the liquid inlet is connected into the paint tank.

Preferably, the number of the fixing seats is two, and the upper ends of the two fixing seats are provided with springs.

Preferably, the outer side of the connecting sleeve is connected with a limit screw through threads, and the tail end of the limit screw is connected with the liquid discharge pipe.

Preferably, the outer side of the connecting seat is connected with a positioning screw through threads, and the tail end of the positioning screw is clamped with the second rotating shaft.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, by designing the pump, the pump can pump out the polyimide from the coating box and discharge the polyimide through the liquid discharge pipe, the polyimide can enter the liquid discharge pipe and then is sprayed out through the spray heads, and the polyimide is sprayed to the optical fibers below the spray heads by designing the plurality of spray heads, so that the optical fibers are coated more uniformly, and by designing the first motor to drive the optical fibers to rotate, the optical fibers are coated rotatably, and further the polyimide is coated more uniformly.

2. According to the invention, the heating plate is designed, the heating plate can emit heat through the electrification of the heating wire, the heat can be transferred to the surface of the optical fiber at the upper end, the coated optical fiber is heated and cured, and the polyimide on the surface of the optical fiber is heated more uniformly and better in curing effect through the design that the first motor drives the optical fiber to rotate.

3. According to the coating box, polyimide is added into the coating box through the material inlet, the polyimide can be filtered through the filter screen, the agglomerated polyimide can be remained on the surface of the filter screen and can not be discharged through the liquid inlet, so that the agglomerated polyimide can not be coated on the surface of an optical fiber, the second motor drives the stirring rod to rotate, the filtering of the polyimide can be accelerated, the coating efficiency is higher, and through the design of the inclined filter screen, when the stirring rod rotates, the stirring rod can press the higher end of the filter screen downwards, so that the spring is compressed, the filter screen can vibrate through the telescopic action of the spring, and the blocking of the filter screen can be effectively prevented.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of the web structure of FIG. 1 in accordance with the present invention;

FIG. 3 is a left side view of the conveyor structure of FIG. 1 in accordance with the present invention;

FIG. 4 is an enlarged view of the portion A of FIG. 1 according to the present invention;

FIG. 5 is an enlarged view of the portion B of FIG. 1 according to the present invention.

In the figure: 1. a base plate; 2. heating the plate; 3. an electric heating wire; 4. a connecting plate; 5. a drive shaft; 6. a first turntable; 7. a first bevel gear; 8. a first motor; 9. a first rotating shaft; 10. a second bevel gear; 11. a conveyor belt; 12. a drive shaft; 13. a second turntable; 14. a protrusion; 15. a pump; 16. a liquid discharge pipe; 17. connecting sleeves; 18. a limit screw; 19. a liquid outlet pipe; 20. a liquid outlet; 21. a spray head; 22. a paint tank; 23. a box cover; 24. a feeding port; 25. a second motor; 26. a second rotating shaft; 27. a connecting seat; 28. a set screw; 29. a connecting rod; 30. a stirring rod; 31. a fixed seat; 32. a spring; 33. filtering with a screen; 34. a liquid inlet; 35. an optical fiber.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1, 2, 3, 4 and 5, a polyimide recoating device comprises a base plate 1, a heating plate 2 is fixedly installed at the upper end of the base plate 1, heating wires 3 are arranged inside the heating plate 2, the heating wires 3 can generate heat when being electrified, a connecting plate 4 is fixedly installed at the upper end of the heating plate 2, a driving shaft 5 is rotatably connected inside the connecting plate 4, the driving shaft 5 can rotate in the connecting plate 4, a first rotating disc 6 is fixedly sleeved outside the driving shaft 5, a conveyor belt 11 is sleeved outside the first rotating disc 6, a protrusion 14 is arranged outside the first rotating disc 6, the protrusion 14 is in contact with the conveyor belt 11, a first bevel gear 7 is fixedly installed outside the driving shaft 5, a transmission shaft 12 is rotatably connected inside the connecting plate 4, a second rotating disc 13 is fixedly sleeved outside the transmission shaft 12, the protrusion 14 is arranged outside the second rotating disc 13, the bulge 14 is contacted with the conveyor belt 11, the upper end of the bottom plate 1 is fixedly provided with a first motor 8, the model of the first motor 8 is YE2, the first motor is a prior art, the outer side of the first rotating shaft 9 of the first motor 8 is fixedly provided with a second bevel gear 10, the second bevel gear 10 is meshed with a first bevel gear 7, the second bevel gear 10 can drive the first bevel gear 7 to rotate, the upper end of the bottom plate 1 is fixedly provided with a pump 15, the pump 15 is a prior art, the upper end of the pump 15 is fixedly provided with a liquid discharge pipe 16, the liquid discharge pipe 16 is used for discharging polyimide, the outer side of the liquid discharge pipe 16 is sleeved with a connecting sleeve 17, the lower end of the connecting sleeve 17 is fixedly provided with a liquid discharge pipe 19, the liquid discharge pipe 19 is used for discharging polyimide, the lower end of the liquid discharge pipe 19 is provided with a liquid outlet 20, the lower end of the liquid outlet 20 is provided with a, the coating material box 22 is internally stored with polyimide, the box cover 23 is mounted at the upper end of the coating material box 22 through a screw, the box cover 23 is internally provided with a feeding port 24, the feeding port 24 is used for feeding polyimide raw materials, the upper end of the box cover 23 is fixedly provided with a second motor 25, the model of the second motor 25 is YE2, the coating material box is the prior art, the outer side of a second rotating shaft 26 of the second motor 25 is sleeved with a connecting seat 27, the lower end of the connecting seat 27 is fixedly provided with a connecting rod 29, the lower end of the connecting rod 29 is fixedly provided with a stirring rod 30, the inner wall of the coating material box 22 is fixedly provided with a fixed seat 31, the upper end of the fixed seat 31 is fixedly provided with a spring 32, the upper end of the spring 32 is fixedly provided with a filter screen 33, the filter screen 33 can prevent the agglomerated polyimide from being discharged.

Referring to fig. 1 and 3, the protrusions 14 are respectively disposed on the outer sides of the first rotating disk 6 and the second rotating disk 13, the number of the protrusions 14 is multiple, and the multiple protrusions 14 are uniformly distributed on the outer sides of the first rotating disk 6 and the second rotating disk 13. The projections 14 are designed such that rotation of the projections 14 causes rotation of the conveyor belt 11.

Referring to fig. 1, 2 and 3, the number of the transmission shafts 12 is plural, the transmission shafts 12 are rotatably connected to the connecting plate 4, the optical fibers 35 are disposed at the upper ends of the two transmission shafts 12, and the optical fibers 35 are in contact with the two transmission shafts 12. The shafts 12 are designed such that rotation of both shafts 12 causes rotation of the optical fiber 35.

Referring to fig. 1 and 3, the number of the second rotating discs 13 is plural, and the plural second rotating discs 13 are uniformly distributed inside the conveyor belt 11. The second rotating disk 13 is designed such that the rotation of the conveyor belt 11 can bring about the rotation of the second rotating disk 13.

Referring to fig. 1, the number of the spray heads 21 is plural, and the plural spray heads 21 are uniformly distributed at the lower end of the liquid outlet pipe 19. By designing the head 21, the head 21 can uniformly discharge the polyimide.

Referring to fig. 1, a liquid inlet 34 is fixedly installed on the outer side of the pump 15, and the liquid inlet 34 is connected to the paint tank 22. The liquid inlet 34 is designed so that the pump 15 can draw in the polyimide through the liquid inlet 34.

Referring to fig. 1, the number of the fixing bases 31 is two, and the springs 32 are disposed at the upper ends of the two fixing bases 31. The spring 32 is designed such that the force of the spring 32 acts on the sieve 33.

Referring to fig. 1 and 4, a limit screw 18 is connected to the outer side of the connecting sleeve 17 through a screw thread, and the tail end of the limit screw 18 is connected to the drainage pipe 16. The connection sleeve 17 and the discharge pipe 16 can be fixed by designing the limit screw 18.

Referring to fig. 1 and 5, the outer side of the connecting seat 27 is connected with a positioning screw 28 through a thread, and the tail end of the positioning screw 28 is clamped with the second rotating shaft 26. The positioning screw 28 is designed to fix the connecting seat 27 and the second rotating shaft 26.

The specific implementation process of the invention is as follows: when in use, a certain amount of optical fibers 35 are placed between the two transmission shafts 12, then polyimide coating is injected into the coating box 22 through the feeding port 24, the polyimide falls on the surface of the filter screen 33, the agglomerated polyimide cannot pass through the filter screen 33 and stays on the surface of the filter screen 33, the agglomerated polyimide is prevented from being drawn out and coated on the surface of the optical fibers 35, the second rotating shaft 26 of the second motor 25 drives the connecting seat 27 to rotate by opening the second motor 25, the connecting seat 27 drives the connecting rod 29 to rotate, the connecting rod 29 drives the stirring rod 30 to rotate, the stirring effect is achieved on the interior of the coating box 22, the filtering of the polyimide can be accelerated, the working efficiency is improved, the stirring rod 30 rotates to contact with the higher end of the filter screen 33 and press down the filter screen 33, the spring 32 is compressed, and an upward reaction force is given to the filter screen 33 through the telescopic action of the spring 32, the filter screen 33 can vibrate, the blockage of the filter screen 33 can be effectively prevented, then the first motor 8 is turned on, the first rotating shaft 9 of the first motor 8 drives the second bevel gear 10 to rotate, the second bevel gear 10 drives the driving shaft 5 to rotate, the driving shaft 5 drives the first rotating disc 6 to rotate, the first rotating disc 6 drives the protrusions 14 to rotate, the protrusions 14 are in contact with the conveyor belt 11 to drive the conveyor belt 11 to rotate, the conveyor belt 11 drives the second rotating disc 13 to rotate, the second rotating disc 13 drives the transmission shafts 12 to rotate, the transmission shafts 12 drive all the optical fibers 35 to rotate through the rotation of the plurality of transmission shafts 12, then the pump 15 is turned on, the pump 15 pumps the polyimide out of the coating box 22 through the liquid inlet 34, the polyimide is discharged through the liquid discharge pipe 16 and enters the liquid discharge pipe 19, the polyimide is sprayed out through the spray nozzle 21 arranged outside the liquid discharge pipe 19, and the coating on the optical fibers 35 is more uniform through the, through opening heating wire 3 for heating wire 3 generates heat, and the heat can transmit the optic fibre 35 surface of upper end, plays the effect of heating to optic fibre 35 after the coating, makes the polyimide by the curing by heating, and through the rotation of optic fibre 35, makes the polyimide on optic fibre 35 surface be heated more evenly, and the curing effect is better.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A polyimide recoating apparatus comprising a base plate (1), characterized in that: the heating plate is characterized in that a heating plate (2) is fixedly mounted at the upper end of the bottom plate (1), heating wires (3) are arranged inside the heating plate (2), a connecting plate (4) is fixedly mounted at the upper end of the heating plate (2), a driving shaft (5) is connected to the connecting plate (4) in a rotating mode, a first rotating disc (6) is fixedly sleeved on the outer side of the driving shaft (5), a conveying belt (11) is sleeved on the outer side of the first rotating disc (6), a protrusion (14) is arranged on the outer side of the first rotating disc (6), the protrusion (14) is in contact with the conveying belt (11), a first bevel gear (7) is fixedly mounted on the outer side of the driving shaft (5), a transmission shaft (12) is connected to the connecting plate in a rotating mode, a second rotating disc (13) is fixedly sleeved on the outer side of the transmission shaft (12), and a protrusion (14, the coating machine is characterized in that the protrusion (14) is in contact with the conveyor belt (11), a first motor (8) is fixedly mounted at the upper end of the base plate (1), a second bevel gear (10) is fixedly mounted at the outer side of a first rotating shaft (9) of the first motor (8), the second bevel gear (10) is meshed with the first bevel gear (7), a pump (15) is fixedly mounted at the upper end of the base plate (1), a liquid discharge pipe (16) is fixedly mounted at the upper end of the pump (15), a connecting sleeve (17) is sleeved at the outer side of the liquid discharge pipe (16), a liquid discharge pipe (19) is fixedly mounted at the lower end of the connecting sleeve (17), a liquid outlet (20) is formed at the lower end of the liquid discharge pipe (19), a spray head (21) is arranged at the lower end of the liquid outlet (20), a coating box (22) is fixedly mounted at the upper end of the base plate (, the inside of case lid (23) is provided with pan feeding mouth (24), the upper end fixed mounting of case lid (23) has second motor (25), connecting seat (27) have been cup jointed in the outside of second pivot (26) of second motor (25), the lower extreme fixed mounting of connecting seat (27) has connecting rod (29), the lower extreme fixed mounting of connecting rod (29) has puddler (30), the inner wall fixed mounting of scribbling case (22) has fixing base (31), the upper end fixed mounting of fixing base (31) has spring (32), the upper end fixed mounting of spring (32) has filter screen (33), filter screen (33) and the inner wall contact of scribbling case (22), the upper end and puddler (30) contact of filter screen (33).

2. A polyimide recoating apparatus according to claim 1, wherein: the bulges (14) are respectively arranged on the outer sides of the first rotating disc (6) and the second rotating disc (13), the number of the bulges (14) is multiple, and the bulges (14) are uniformly distributed on the outer sides of the first rotating disc (6) and the second rotating disc (13).

3. A polyimide recoating apparatus according to claim 1, wherein: the number of the transmission shafts (12) is multiple, the transmission shafts (12) are rotatably connected with the connecting plate (4), optical fibers (35) are arranged at the upper ends of the two transmission shafts (12), and the optical fibers (35) are in contact with the two transmission shafts (12).

4. A polyimide recoating apparatus according to claim 1, wherein: the number of the second rotating discs (13) is multiple, and the second rotating discs (13) are uniformly distributed in the conveying belt (11).

5. A polyimide recoating apparatus according to claim 1, wherein: the number of the spray heads (21) is multiple, and the spray heads (21) are uniformly distributed at the lower end of the liquid outlet pipe (19).

6. A polyimide recoating apparatus according to claim 1, wherein: a liquid inlet (34) is fixedly arranged on the outer side of the pump (15), and the liquid inlet (34) is connected into the coating tank (22).

7. A polyimide recoating apparatus according to claim 1, wherein: the quantity of fixing base (31) is two, two the upper end of fixing base (31) all is provided with spring (32).

8. A polyimide recoating apparatus according to claim 1, wherein: the outer side of the connecting sleeve (17) is connected with a limit screw (18) through threads, and the tail end of the limit screw (18) is connected with the liquid discharge pipe (16).

9. A polyimide recoating apparatus according to claim 1, wherein: the outer side of the connecting seat (27) is connected with a positioning screw (28) through threads, and the tail end of the positioning screw (28) is connected with the second rotating shaft (26) in a clamping mode.