CN112979183A - Optical fiber drawing coating device - Google Patents
Optical fiber drawing coating device Download PDFInfo
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- CN112979183A CN112979183A CN202110243465.XA CN202110243465A CN112979183A CN 112979183 A CN112979183 A CN 112979183A CN 202110243465 A CN202110243465 A CN 202110243465A CN 112979183 A CN112979183 A CN 112979183A
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/12—General methods of coating; Devices therefor
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/104—Coating to obtain optical fibres
- C03C25/105—Organic claddings
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/24—Coatings containing organic materials
- C03C25/26—Macromolecular compounds or prepolymers
Abstract
The invention discloses an optical fiber drawing and coating device which comprises a mounting plate, a coating mechanism, a bubble processing mechanism, a cooling mechanism and a solidifying mechanism, wherein the mounting plate is provided with the cooling mechanism, the coating mechanism, the bubble processing mechanism and the solidifying mechanism from top to bottom, the bubble processing mechanism and the solidifying mechanism are positioned on the same horizontal plane, the bubble processing mechanism carries out gas removal processing on coating containing bubbles, and the upper end of the cooling mechanism is connected with the lower end of a drawing furnace. The coating mechanism coats the coating on the bare fiber, recovers the coated redundant coating, and the bubble processing mechanism enables the coating to be thrown out of the rotary drum through centrifugal force, enables the coating to be divided into a plurality of parts by a dividing net in the movement process, enables the coating to impact on the inner wall of the negative pressure box with the minimum volume, and accordingly enables bubbles in the coating to be broken through, and removal of the bubbles in the coating is achieved.
Description
Technical Field
The invention relates to the technical field of optical fiber drawing coating, in particular to an optical fiber drawing coating device.
Background
In the process of drawing an optical fiber, in order to protect the surface of a glass optical fiber, a plurality of coating layers need to be coated on the surface of the optical fiber, which is usually completed by coating an optical fiber coating, wherein the optical fiber coating is usually made of a high molecular resin compound material and is in a liquid state at normal temperature.
The coating apparatus removes the coating material with bubbles before the optical fiber is manufactured, since the quality of the surface of the optical fiber is affected if the bubbles are present in the coating material during the coating process. At present, the front end coating of the coating device is removed by manual operation until no air bubbles exist. And the discharged coating can not be recycled and treated uniformly and is treated as waste, thus causing resource waste.
Meanwhile, in order to obtain better quality of the coating layer on the surface of the optical fiber, good matching among the viscosity of the coating, the temperature of the coating and the drawing speed is required in the drawing process. The surface temperature of the optical fiber is higher and higher along with the increase of the drawing speed in the drawing process. The temperature of the coating needs to be increased in order to match the temperature of the optical fiber.
The temperature of the optical fiber preform in the drawing furnace is about 2000-2200 ℃, particularly under the condition of high-speed drawing, the temperature of the outlet of the optical fiber can reach 1400-1700 ℃, so that a large amount of heat can be generated when the bare fiber flows out of the outlet of the drawing furnace. The traditional coating temperature heating method is a fixed temperature heating method, liquid (liquid water or mineral oil) is heated by adopting external heating equipment, then a coating container is heated through liquid circulation, and then the coating is heated through the coating container.
The traditional coating heating mode can not utilize the heat brought out by the bare fiber, thereby causing the waste of energy and the increase of production cost.
Disclosure of Invention
The invention aims to provide an optical fiber drawing coating device to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides an optic fibre wire drawing coating device, this wire drawing coating device include mounting panel, coating mechanism, bubble processing mechanism, cooling body, solidification mechanism, from last cooling body, coating mechanism, bubble processing mechanism and the solidification mechanism of being provided with down on the mounting panel, bubble processing mechanism and solidification mechanism are located same horizontal plane, bubble processing mechanism carries out gaseous the processing of getting rid of to the coating that contains the bubble, the cooling body upper end is connected with the wire drawing stove lower extreme. The coating mechanism coats the coating on the bare fiber, recovers the coated redundant coating, and the bubble processing mechanism enables the coating to be thrown out of the rotary drum through centrifugal force, enables the coating to be divided into a plurality of parts by a dividing net in the movement process, enables the coating to impact on the inner wall of the negative pressure box with the minimum volume, and accordingly enables bubbles in the coating to be broken through, and removal of the bubbles in the coating is achieved.
Be provided with two sets of even boards, backup pad, support plate on the mounting panel from last to down, cooling body and coating mechanism are installed respectively on two sets of even boards from last to down in proper order, be provided with the switch board on the support plate, the support plate below is provided with the linking cylinder, it is connected with the rotation of switch board to link up the cylinder, the both ends of switch board are provided with bubble processing mechanism and solidification mechanism respectively. Even the board provides the support for the installation of cooling body and coating mechanism, the backup pad provides the support for the installation of transmission pipe, the support plate provides the support for the rotation installation of switching board, simultaneously for the installation that links up the cylinder provides the support, bubble processing mechanism and solidification mechanism are installed respectively to the switching board both ends, the switching board is through rotating on the support plate, realize the switching of bubble processing mechanism and solidification mechanism, make bubble processing mechanism and solidification mechanism be located coating mechanism respectively under, it carries out power linking for the rotation of switching board to link up the cylinder, link up through power, make the switching board take place to rotate.
The bubble processing mechanism comprises an air exhaust box and a negative pressure box arranged below the air exhaust box, wherein a communicating pipe is arranged inside the air exhaust box, a fan blade is arranged outside the communicating pipe, a gear ring is arranged outside the fan blade, a rotating groove is formed in the inner wall of the air exhaust box and corresponds to the gear ring, one side of the gear ring is located in the rotating groove, a gear groove is formed in the position, corresponding to the rotating groove, of the outer side of the air exhaust box, the lower end of the communicating pipe is located in the negative pressure box, the negative pressure box is communicated with the air exhaust box, and the negative pressure box enables. The suction box is communicating pipe, the rotation installation of ring gear provides the support, communicating pipe drives the flabellum and rotates in the suction box, the flabellum is at the air in the rotation in-process extraction negative pressure box, make the negative pressure box in the low pressure, thereby gaseous getting rid of in the coating for simultaneously, the rotation of flabellum drives the rotation of ring gear, make the ring gear will rotate the outside of power transmission, communicating pipe and coating mechanism intercommunication make the coating that has the bubble in the coating mechanism enter into the negative pressure box through communicating pipe.
The rotary drum is arranged on the outer side of the communicating pipe in the negative pressure box, the rotary drum is connected with the negative pressure box in a rotating mode, a power motor is arranged below the rotary drum in the negative pressure box, the power motor is connected with the rotary drum shaft, a protective shell is arranged on the outer side of the power motor, a dividing net is arranged on the outer side of the rotary drum in the negative pressure box, a plurality of groups of through holes are formed in the rotary drum, a plurality of groups of saw teeth are arranged on the inner wall of the negative pressure box, and the rotary drum is fixed with. The power motor drives the rotary drum to rotate so as to drive the communicating pipe to rotate, the rotary drum enables the coating to be thrown out through the through hole through centrifugal force in the rotating process, the cutting net cuts the thrown coating, the coating is further cut into small parts, meanwhile, bubbles in the coating are cut, a plurality of groups of small parts of coating collide with the inner wall of the negative pressure box and the saw teeth, the bubbles in the small parts of coating are punctured and cover the inner wall of the negative pressure box, the coating with the bubbles removed gathers to the bottom of the negative pressure box along the inner wall of the negative pressure box, the primary separation of gas in the coating is realized through the rotation of the rotary drum, the secondary bubbles are removed through the cutting of the cutting net, the tertiary gas separation is realized through the collision with the saw teeth and the inner wall of the negative pressure box, and compared with the existing bubble remover, the small bubbles in the coating can be avoided, the effect of removing the gas in the coating is improved.
The switching plate is of a hollow structure and is L-shaped, one end of the switching plate is fixed with the air exhaust box, a rotating shaft is arranged inside one end of the switching plate fixed with the air exhaust box, a driving wheel is arranged at a position, corresponding to the gear groove, on the rotating shaft, one end of the driving wheel is located inside the gear groove and is rotatably connected with the gear ring, a first helical gear is arranged below the driving wheel on the rotating shaft, a gear transmission set is arranged inside the switching plate, one end of the gear transmission set is rotatably connected with the first helical gear, a second rotating shaft is arranged at the other end, located inside the gear transmission set, of the switching plate, a driving wheel and a second helical gear are arranged on the second rotating shaft from top to bottom, and the second helical gear is rotatably connected with the gear transmission set.
The connecting cylinder is characterized in that a connecting shaft is arranged on a cylinder rod of the connecting cylinder, a connecting wheel and a fixed wheel are arranged on the connecting shaft from top to bottom, a fixed ring is arranged at the upper end of the support plate and located outside the fixed wheel, the fixed ring is located inside the switching plate, an extending plate is arranged at the upper end of the fixed wheel, a plurality of groups of fixed columns are arranged at the lower end of the extending plate, fixed holes are formed in the switching plate and correspond to the fixed columns, and the connecting cylinder enables the connecting wheel to be rotatably connected with or separated from the driving wheel.
The air exhaust box is provided with a plurality of groups of airflow holes, the upper end of the air exhaust box is provided with a replacement groove, a replacement plate is arranged in the replacement groove, the replacement groove is communicated with the plurality of groups of airflow holes, the lower end of the replacement plate is provided with a filter block corresponding to the plurality of groups of airflow holes, and the filter block is positioned in the airflow holes; the supporting plate is provided with a conveying pipe; the cold cutting mechanism comprises a cooling box, a cooling pipe is arranged on the cooling box, and one end of the conveying pipe is connected with a cooling pipe pipeline; the solidification mechanism comprises a solidification box, a solidification pipe is arranged on the outer side of the solidification box, and the cooling box is connected with a solidification pipe pipeline.
The cooling box is characterized in that a cooling plate is arranged inside the cooling box, the cooling plate is annular and hollow, a plurality of groups of vertical cooling air holes are formed in the upper end of the cooling plate, air holes are formed in the lower end of the cooling plate, a cooling ring is arranged below the cooling plate, the upper end of the cooling ring is communicated with the cooling plate through the air holes, the outer side of the cooling ring is connected with a cooling pipe pipeline, a first flow blocking plate is arranged above each group of air holes corresponding to the inside of the cooling plate, and an air outlet is formed in one side of the upper end of the. The first flow baffle blocks gas flowing into the cooling ring, the air is fully diffused into the cooling plate, the air flows out from each cooling air hole of the cooling plate at a constant speed, the air flow speed of each part in the cooling box is the same, the impact of the air flow received by each part of bare fibers is the same, the air flow flows to the upper part of the cooling box from the lower part inside the cooling box, the upper part of the cooling box is close to a wire drawing furnace, the temperature of the upper part is high, the heat above the bare fibers can be prevented from being diffused to the lower part inside the cooling box by the air flow flowing from bottom to top, the bare fibers move, the temperature is reduced to a certain degree in the cooling box, the flow of the air flow is accelerated, the air with a large amount of heat flows out of the cooling box and enters the curing box and the coating box, the heat is recycled, and the utilization rate of the heat is improved.
The curing box is internally provided with a curing plate, the curing plate is annular and hollow, a plurality of groups of curing air holes are formed in the upper end of the curing plate, the curing air holes are inclined towards the center of the curing plate, air holes are formed in the lower end of the curing plate, a curing ring is arranged below the curing plate, the upper end of the curing ring is communicated with the curing plate through the air holes, the outer side of the curing ring is connected with a curing pipe, a second flow baffle is arranged above each group of air holes corresponding to the inside of the curing plate, and a plurality of groups of air outlets are formed in the upper end of the curing box. Through the setting of a plurality of groups solidification gas pocket, can increase the air volume that enters into in the curing box, the slope setting of rethread solidification gas pocket, can make the air that has a large amount of heats flow at the middle part of curing box, thereby make a large amount of hot-air flow around the optic fibre after the coating, the air is from up flowing down, there is certain dynamics of up-impacting to coating, can avoid coating to slide down on bare fiber and make bare fiber coating inhomogeneous, the air current flows from up down, can not only make coating adsorb on bare fiber, and also have the effect that improves the coating effect.
The coating mechanism comprises a coating box, the upper end in the coating box is provided with a coating pipe, a recovery plate is arranged below the coating pipe in the coating box, redundant coating on bare fibers is scraped by the recovery plate and recovered, an air inlet pipe is arranged between the coating pipe and the recovery plate on the coating box, an electromagnetic valve is arranged in the air inlet pipe, and the other end of the air inlet pipe is connected with a cooling box pipeline.
Compared with the prior art, the invention has the following beneficial effects:
1. when the optical fiber is produced, the cooling box is positioned below the drawing furnace and forms a closed optical fiber conveying channel together with the coating box and the curing box, so that the problems that bare fibers are easy to shake and even break due to the influence of external wind speed change are solved, and the production efficiency of the optical fiber is improved.
2. Rotation through the rotary drum realizes gaseous initial segregation in the coating, through the cutting apart of passing the segmentation net, carry out the secondary bubble and get rid of, again through the collision with sawtooth and negative pressure incasement wall, realize the gas separation of third time, through the rotary drum, cut apart the setting of net and sawtooth, for current bubble remover, can avoid mixing with the microbubble in the coating, improved the effect of getting rid of gas in the coating, and the coating behind the bubble of getting rid of is recycled, the utilization ratio of coating is improved, the waste of resource is reduced.
3. Utilize a large amount of heats that bare fiber took out, coating after coating heats the solidification, thermal recycling has not only been realized, and the slope through the solidification gas pocket sets up, can make the middle part that has a large amount of thermal air at the curing box flow, thereby make a large amount of hot-air flow around the optic fibre after the coating, the air is from up flowing down, there is certain dynamics of up-impacting to coating, can avoid coating to slide down on bare fiber and make bare fiber coating inhomogeneous, the air current flows from up down, can not only make coating adsorb on bare fiber, and also have the effect that improves the coating effect.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a front elevational view of the overall construction of the present invention;
FIG. 2 is a top plan view of the overall structure of the present invention;
FIG. 3 is a simulated view of the flow of air in the cooling box and curing box of the present invention;
FIG. 4 is a schematic view showing the internal structure of the bubble processing means of the present invention;
FIG. 5 is a schematic view of the transmission structure between the bubble processing mechanism and the switching plate of the present invention;
FIG. 6 is a schematic view of the structure between the cooling plate and the cooling tube of the present invention;
FIG. 7 is a schematic structural view between a curing plate and a curing tube of the present invention;
fig. 8 is a schematic view of the structure of the recovery sheet of the present invention.
In the figure: 1. mounting a plate; 2. a coating mechanism; 3. a bubble processing mechanism; 4. a cooling mechanism; 5. a curing mechanism; 1-1, a carrier plate; 1-2, a support plate; 1-3, a switch board; 1-4, connecting a cylinder; 1-5, a driving wheel; 1-6, a driving wheel; 1-7, a fixed wheel; 1-8, a connecting wheel; 2-1, coating a pipe; 2-2, recovering the plate; 2-21, a main board; 2-22, a subplate; 2-23, air bag; 3-1, replacing the plate; 3-2, filtering blocks; 3-3, communicating pipes; 3-4, fan blades; 3-5, gear ring; 3-6, a negative pressure box; 3-7, rotating the drum; 3-8, dividing the net; 3-9, sawteeth; 3-10, a power motor; 3-11, an air extraction box; 4-1, cooling plates; 4-2, a first flow baffle; 4-3, cooling air holes; 4-4, cooling ring; 4-5, cooling pipes; 5-1, curing the plate; 5-2, a second flow baffle; 5-3, curing air holes; 5-4, a curing ring; 5-5, curing the tube.
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.
Referring to fig. 1-8, the present invention provides the following technical solutions: the utility model provides an optic fibre wire drawing coating device, this wire drawing coating device includes mounting panel 1, coating mechanism 2, bubble processing mechanism 3, cooling body 4, solidification mechanism 5, mounting panel 1 is last from last to installing cooling body 4, coating mechanism 2, bubble processing mechanism 3 and solidification mechanism 5 down, bubble processing mechanism 3 and solidification mechanism 5 are located same horizontal plane, bubble processing mechanism 3 carries out gaseous the processing of getting rid of to the coating that contains the bubble, 4 upper ends of cooling body are connected with the wire drawing stove lower extreme.
The mounting plate 1 is fixedly provided with two groups of connecting plates, a group of supporting plates 1-2 and a group of supporting plates 1-1 from top to bottom, the cooling mechanism 4 and the coating mechanism 2 are sequentially and respectively arranged on the two groups of connecting plates from top to bottom, the supporting plates 1-1 are rotatably provided with the switching plates 1-3, and the two ends of the switching plates 1-3 are respectively provided with the bubble processing mechanism 3 and the solidifying mechanism 5.
The supporting plate 1-2 is fixed with a delivery pipe which delivers the air delivered by the bubble processing mechanism 3 into a cooling box of the cooling mechanism 3.
The switching plate 1-3 is of a hollow structure, the switching plate 1-3 is of an L shape, one end of the switching plate 1-3 is fixed with an air exhaust box 3-11 of the air bubble processing mechanism 3, a rotating shaft is rotatably arranged inside one end of the switching plate 1-3 fixed with the air exhaust box 3-11, a driving wheel 1-5 is fixed on the rotating shaft at a position corresponding to a gear groove, a first helical gear is fixed on the rotating shaft below the driving wheel 1-5, a gear transmission set is arranged inside the switching plate 1-3, one end of the gear transmission set is rotatably connected with the first helical gear, a second rotating shaft is rotatably arranged inside the switching plate 1-3 at the other end of the gear transmission set, a driving wheel 1-6 and a second helical gear are fixed on the second rotating shaft from top to bottom, and the second helical gear is rotatably connected with the gear transmission set.
The gear transmission set is formed by mutually matching a helical gear, a rotating shaft and a rotating shaft support frame.
A connecting cylinder 1-4 is arranged below the carrier plate 1-1, a cylinder rod of the connecting cylinder 1-4 penetrates through the carrier plate 1-1 and the switching plate 1-3, a connecting shaft is rotatably arranged on the cylinder rod, connecting wheels 1-8 and fixed wheels 1-7 are fixed on the connecting shaft from top to bottom, a fixed ring is fixed at the upper end of the carrier plate 1-1 and positioned outside the fixed wheels 1-7, the upper end of the fixed ring penetrates through the plate body of the switching plate 1-3 and is rotatably connected with the switching plate 1-3, the fixed ring prevents the fixed wheels 1-7 from rotating, so that the connecting wheels 1-8 cannot rotate, when the cylinder rod of the connecting cylinder 1-4 extends out, the fixed ring still contacts with the fixed wheels 1-7, an extension plate is fixed at the upper end of the fixed wheels 1-7, and a plurality of groups of fixed columns are fixed at the lower end of the extension plate, fixing holes are formed in the positions, corresponding to the fixing columns, of the switching plates 1-3, the fixing columns are located in the fixing holes and used for fixing the relative positions of the switching plates and the support plate, and the connecting cylinders 1-4 enable the connecting wheels 1-8 to be rotatably connected with or separated from the driving wheels 1-6 through extending or retracting of cylinder rods.
The coating mechanism 2 comprises a coating box, a coating pipe 2-1 is installed at the upper end inside the coating box, a recovery plate 2-2 is installed below the coating pipe 2-1 inside the coating box in a rotating mode, the recovery plate 2-2 scrapes and recovers redundant coating on bare fibers, an air inlet pipe is installed between the coating pipe 2-1 and the recovery plate 2-2 on the coating box, an electromagnetic valve is arranged inside the air inlet pipe, the amount of hot air entering the air inlet pipe is controlled through the control electromagnetic valve, and the other end of the air inlet pipe is connected with an air outlet pipeline of a cooling box of the cooling mechanism 4.
Further, a bubble sensor is installed on the coating tube 2-1 for detecting whether bubbles exist in the coating material.
The coating box is provided with micropores which are used for discharging the entering hot air, and the discharge amount of the hot air is far smaller than the air input amount.
The recovery plate 2-2 is composed of three groups of main plates 2-21 and three groups of auxiliary plates 2-22, the main plates 2-21 and the auxiliary plates 2-22 are rotatably connected with a box body of the coating box, the rotation angle is controlled by a motor (not shown in the figure), air bags 2-23 are arranged on two sides of each group of auxiliary plates 2-22, the other sides of the air bags 2-23 are fixed with the main plates 2-21, and the air bags 2-23 are connected with the main plates 2-21 and the auxiliary plates 2-22, so that the recovery plate 2-2 can bear the scraped redundant coating.
The main plate 2-21 and the sub-plate 2-22 are rotated downward so that the scraped coating material can enter the rotary drum 3-7 of the bubble processing mechanism 3.
The bubble processing mechanism 3 comprises an air extracting box 3-11 and a negative pressure box 3-6 arranged below the air extracting box 3-11, the middle part of the upper end of the air extracting box 3-11 is provided with a feed inlet, when a curing box is positioned under a coating box, a conveying pipe covers right above the feed inlet, a communicating pipe 3-3 is rotatably arranged at the outer side of the feed inlet in the air extracting box 3-11, the outer side of the communicating pipe 3-3 is fixed with a fan blade 3-4, the outer side of the fan blade 3-4 is fixed with a gear ring 3-5, the inner wall of the air extracting box 3-11 is provided with a rotating groove corresponding to the outer part of the gear ring 3-5, one side of the gear ring 3-5 is positioned in the rotating groove, the outer side of the air extracting box 3-11 is provided with a gear groove corresponding to the rotating groove, the driving wheel 1-5 is rotatably connected with the gear ring 3-5, the lower end of the communicating pipe 3-5 is positioned in the negative pressure box 3-6, the negative pressure box 3-6 is communicated with the air suction box 3-11 through an air hole, and the fan blades 3-4 extract air in the negative pressure box 3-6 through rotation or infuse pure and dry air into the negative pressure box 3-6.
The air extraction box 3-11 is provided with a plurality of groups of airflow holes, the upper end of the air extraction box 3-11 is provided with a replacement groove, a detachable replacement plate 3-1 is installed inside the replacement groove, the replacement groove is communicated with the plurality of groups of airflow holes, a detachable filter block 3-2 is installed at the position, corresponding to the plurality of groups of airflow holes, of the lower end of the replacement plate 3-1, the filter block 3-2 is located in the airflow holes, the filter block 3-2 adsorbs and purifies moisture, dust particles and the like in air, and the filter block 3-2 is composed of cotton cloth wrapped with active carbon.
A rotary drum 3-7 is fixed on the outer side of the communicating pipe 3-3 in the negative pressure box 3-6, the rotary drum 3-7 is rotatably connected with the negative pressure box 3-6, a power motor 3-10 is installed inside the negative pressure box 3-6 and below the rotary drum 3-7, the power motor 3-10 is connected with a shaft of the rotary drum 3-7, a protective shell is arranged on the outer side of the power motor 3-10, a dividing net 3-8 is installed on the outer side of the rotary drum 3-7 inside the negative pressure box 3-6, a plurality of groups of through holes are formed in the rotary drum 3-7, a plurality of groups of saw teeth 3-9 are fixed on the inner wall of the negative pressure box 3-6, and the rotary drum 3-7 is.
The coating material from which air bubbles are removed is stored in the negative pressure tank 3-6, and the coating material is evacuated by an externally connected pump.
The cold cutting mechanism 4 comprises a cooling box, a cooling pipe 4-5 is fixedly arranged on the outer side of the cooling box, and one end of the conveying pipe is connected with the cooling pipe 4-5 through a pipeline;
the cooling box is characterized in that a cooling plate 4-1 is arranged at the lower end of the inside of the cooling box, the cooling plate 4-1 is annular and hollow, a plurality of groups of vertical cooling air holes 4-3 are formed in the upper end of the cooling plate 4-1, air vents are formed in the lower end of the cooling plate 4-1, a cooling ring 4-4 is arranged below the cooling plate 4-1, the upper end of the cooling ring 4-4 is communicated with the cooling plate 4-1 through the air vents, the outer side of the cooling ring 4-4 is connected with a cooling pipe 4-5 through a pipeline, a first flow baffle plate 4-2 is arranged above each group of air vents in the cooling plate 4-1, and an air outlet is formed in the right side.
The curing mechanism 5 comprises a curing box, curing pipes 5-5 are arranged on the outer side of the curing box, and the cooling box is connected with the curing pipes 5-5 through air outlets and pipelines.
The curing box is internally provided with a curing plate 5-1, the curing plate 5-1 is annular and hollow, the upper end of the curing plate 5-1 is provided with a plurality of groups of curing air holes 5-3, the curing air holes 5-3 are all inclined towards the center of the curing plate 5-3, the lower end of the curing plate 5-1 is provided with air holes, a curing ring 5-4 is arranged below the curing plate 5-1, the upper end of the curing ring 5-4 is communicated with the curing plate 5-1 through the air holes, the outer side of the curing ring 5-4 is connected with a curing pipe 5-5 through a pipeline, a second flow baffle 5-2 is arranged above each group of air holes inside the curing plate 5-1, and the upper end of the curing box is provided with a plurality of groups.
The working principle of the invention is as follows:
the cooling box is positioned below the drawing furnace, and forms a closed optical fiber conveying channel together with the coating box and the curing box, and the bare fiber flows through the cooling box, the coating box and the curing box in sequence after coming out of the drawing furnace, and finally passes through the traction device and the wire collecting machine.
When the coating in the coating pipe 2-1 has air bubbles, an air cylinder rod of the connecting air cylinder 1-4 extends out, so that the connecting wheel 1-8 is rotatably connected with the driving wheel 1-5, the fixed column is separated from the fixed hole, the switching plate 1-3 can rotate relative to the support plate 1-1, then the power motor 3-10 starts to rotate, the rotary drum 3-7 and the communicating pipe 3-3 are further driven to rotate, the fan blades 3-4 are further driven to rotate positively, and air in the negative pressure box 3-6 is extracted.
The rotation of the fan blades 3-4 drives the gear ring 3-5 and the driving wheel 1-5 to rotate, the driving wheel 1-6 is driven to rotate through the gear transmission set, the connecting wheel 1-8 cannot rotate, so that the driving wheel 1-6 rotates around the connecting wheel 1-8, and the switching plate 1-3 rotates on the support plate 1-1 under the mutual matching of the driving wheel 1-6 and the connecting wheel 1-8 until the pumping box 3-11 is positioned right below the coating box. Then the rod of the cylinder engaged with the cylinder 1-4 is retracted and the fixing post is inserted into the fixing hole again.
When the suction box 3-11 is positioned right below the coating box, the main plate 2-21 and the auxiliary plate 2-22 start to rotate downwards and abut against the suction box 3-11, the coating in the coating pipe 2-1 enters the rotary drum 3-7 through the feed inlet and the communicating pipe 3-3, the rotary drum 3-7 is driven by the power motor 3-10 to rotate at a high speed, so that the coating is thrown out under the action of centrifugal force, is divided into a plurality of parts by the dividing net 3-8 in the middle of the air movement, finally impacts on the inner wall of the negative pressure box 3-6, the air bubbles in the coating are quickly removed through the centrifugal force, the division and the impact, and the coating with the air bubbles removed is pumped by an external pump and recycled.
When the coating does not contain air bubbles, the air cylinder rod of the connecting air cylinder 1-4 extends out again, so that the connecting wheel 1-8 is contacted with the driving wheel 1-6 again, the power motor 3-10 rotates the switching plate 1-3 back and forth on the support plate 1-1 until the curing box is positioned under the coating box, and at the moment, the conveying pipe completely covers the feeding hole. Then the connecting cylinder 1-4 is reset, and the fixing column is inserted into the fixing hole again.
The power motor 3-10 rotates reversely to drive the fan blades 3-4 to rotate reversely, so that the fan blades 3-4 draw outside air through airflow holes in the air suction box 3-11 and infuse the outside air into the negative pressure box 3-6, the drawn air is purified by the filter block 3-2, the drawn air enters the cooling pipe 4-5 through the conveying pipe and flows upwards from the plurality of groups of cooling air holes 4-3, heat on the upper end of the cooling box and on the bare fibers is conveyed, the bare fibers and the interior of the cooling box are cooled, and hot air enters the coating box and the curing pipe 5-5 respectively.
The hot air entering the coating box heats the coating in the coating pipe 2-1, so that the flowability of the coating is improved, the coating effect on bare fibers is improved, and the amount of the hot air entering the coating box is controlled by controlling the opening size of the electromagnetic valve.
The hot air entering the curing tube 5-5 flows upwards at the center of the curing box through the curing air hole 5-3, so that the coated coating is heated and cured, and finally, the hot air moving upwards flows out of the curing box through the air outlet. And winding the optical fiber after the coating is cured by a take-up machine.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An optical fiber drawing coating apparatus characterized in that: this wire drawing coating device includes mounting panel (1), coating mechanism (2), bubble processing mechanism (3), cooling body (4), solidification mechanism (5), mounting panel (1) is gone up from last to being provided with cooling body (4), coating mechanism (2), bubble processing mechanism (3) and solidification mechanism (5) down, bubble processing mechanism (3) and solidification mechanism (5) are located same horizontal plane, bubble processing mechanism (3) carry out the gas to the coating that contains the bubble and get rid of the processing, cooling body (4) upper end is connected with the wire drawing stove lower extreme.
2. An optical fiber drawing coating apparatus according to claim 1, wherein: the improved automatic air-conditioning device is characterized in that two groups of connecting plates, supporting plates (1-2) and a supporting plate (1-1) are arranged on the mounting plate (1) from top to bottom, the cooling mechanism (4) and the coating mechanism (2) are sequentially arranged on the two groups of connecting plates from top to bottom respectively, a switching plate (1-3) is arranged on the supporting plate (1-1), a linking cylinder (1-4) is arranged below the supporting plate (1-1), the linking cylinder (1-4) is rotatably connected with the switching plate (1-3), and both ends of the switching plate (1-3) are respectively provided with an air bubble processing mechanism (3) and a curing mechanism (5).
3. An optical fiber drawing coating apparatus according to claim 2, wherein: the bubble processing mechanism (3) comprises an air pumping box (3-11) and a negative pressure box (3-6) arranged below the air pumping box (3-11), a communicating pipe (3-3) is arranged inside the air pumping box (3-11), a fan blade (3-4) is arranged on the outer side of the communicating pipe (3-3), a gear ring (3-5) is arranged on the outer side of the fan blade (3-4), a rotating groove is arranged on the inner wall of the air pumping box (3-11) corresponding to the outer part of the gear ring (3-5), one side of the gear ring (3-5) is positioned in the rotating groove, a gear groove is arranged on the outer side of the air pumping box (3-11) corresponding to the rotating groove, the lower end of the communicating pipe (3-5) is positioned in the negative pressure box (3-6), and the negative pressure box (3-6) is communicated with the air pumping box (3-11), the negative pressure tank (3-6) rotates the communicating pipe (3-5).
4. An optical fiber drawing coating apparatus according to claim 3, wherein: a rotary drum (3-7) is arranged on the outer side of the communicating pipe (3-3) in the negative pressure box (3-6), the rotary drum (3-7) is rotationally connected with a negative pressure box (3-6), a power motor (3-10) is arranged in the negative pressure box (3-6) and below the rotary drum (3-7), the power motor (3-10) is connected with the rotary drum (3-7) through a shaft, a protective shell is arranged on the outer side of the power motor (3-10), a dividing net (3-8) is arranged inside the negative pressure box (3-6) and positioned outside the rotary drum (3-7), the rotary drum (3-7) is provided with a plurality of groups of through holes, the inner wall of the negative pressure box (3-6) is provided with a plurality of groups of saw teeth (3-9), and the rotary drum (3-7) is fixed with the communicating pipe (3-3).
5. An optical fiber drawing coating apparatus according to claim 4, wherein: the switching plate (1-3) is of a hollow structure, the switching plate (1-3) is L-shaped, one end of the switching plate (1-3) is fixed with the air extraction box (3-11), a rotating shaft is arranged inside one end of the switching plate (1-3) fixed with the air extraction box (3-11), a driving wheel (1-5) is arranged on the rotating shaft at a position corresponding to the gear groove, one end of the driving wheel (1-5) is positioned inside the gear groove and is rotationally connected with the gear ring (3-5), a first helical gear is arranged on the rotating shaft below the driving wheel (1-5), a gear transmission set is arranged inside the switching plate (1-3), one end of the gear transmission set is rotationally connected with the first helical gear, a second rotating shaft is arranged on the other end of the gear transmission set inside the switching plate (1-3), and the second rotating shaft is provided with driving wheels (1-6) and a second helical gear from top to bottom, and the second helical gear is rotationally connected with the gear transmission set.
6. An optical fiber drawing coating apparatus according to claim 5, wherein: the connecting cylinder (1-4) is provided with a connecting shaft, the connecting shaft is provided with connecting wheels (1-8) and fixed wheels (1-7) from top to bottom, the upper end of the support plate (1-1) is positioned on the outer sides of the fixed wheels (1-7) and provided with fixed rings, the fixed rings are positioned inside the switching plates (1-3), the upper ends of the fixed wheels (1-7) are provided with extending plates, the lower ends of the extending plates are provided with a plurality of groups of fixed columns, fixed holes are formed in the switching plates (1-3) at positions corresponding to the fixed columns, and the connecting cylinder (1-4) enables the connecting wheels (1-8) to be rotatably connected with or separated from the driving wheels (1-6).
7. An optical fiber drawing coating apparatus according to claim 6, wherein: the air extraction box (3-11) is provided with a plurality of groups of airflow holes, the upper end of the air extraction box (3-11) is provided with a replacement groove, a replacement plate (3-1) is arranged inside the replacement groove, the replacement groove is communicated with the plurality of groups of airflow holes, the lower end of the replacement plate (3-1) is provided with a filter block (3-2) corresponding to the plurality of groups of airflow holes, and the filter block (3-2) is positioned in the airflow holes; the support plate (1-2) is provided with a conveying pipe; the cold cutting mechanism (4) comprises a cooling box, a cooling pipe (4-5) is arranged on the cooling box, and one end of the conveying pipe is connected with the cooling pipe (4-5) through a pipeline; the curing mechanism (5) comprises a curing box, a curing pipe (5-5) is arranged on the outer side of the curing box, and the cooling box is connected with the curing pipe (5-5) through a pipeline.
8. An optical fiber drawing coating apparatus according to claim 7, wherein: the cooling box is characterized in that a cooling plate (4-1) is arranged inside the cooling box, the cooling plate (4-1) is annular and hollow, a plurality of groups of vertical cooling air holes (4-3) are formed in the upper end of the cooling plate (4-1), air holes are formed in the lower end of the cooling plate (4-1), a cooling ring (4-4) is arranged below the cooling plate (4-1), the upper end of the cooling ring (4-4) is communicated with the cooling plate (4-1) through the air holes, the outer side of the cooling ring (4-4) is connected with a cooling pipe (4-5) through a pipeline, a first flow blocking plate (4-2) is arranged above each group of air holes inside the cooling plate (4-1), and an air outlet is formed in one side of the upper end of the cooling box.
9. An optical fiber drawing coating apparatus according to claim 8, wherein: the curing box is internally provided with a curing plate (5-1), the curing plate (5-1) is annular and hollow, the upper end of the curing plate (5-1) is provided with a plurality of groups of curing air holes (5-3), the curing air holes (5-3) are all inclined towards the center of the curing plate (5-3), the lower end of the curing plate (5-1) is provided with an air vent, a curing ring (5-4) is arranged below the curing plate (5-1), the upper end of the curing ring (5-4) is communicated with the curing plate (5-1) through a vent hole, the outer side of the curing ring (5-4) is connected with a curing pipe (5-5) through a pipeline, and a second flow baffle (5-2) is arranged above each group of air holes in the curing plate (5-1), and a plurality of groups of air outlets are arranged at the upper end of the curing box.
10. An optical fiber drawing coating apparatus according to claim 9, wherein: the coating mechanism (2) comprises a coating box, the upper end inside the coating box is provided with a coating pipe (2-1), a recovery plate (2-2) is arranged below the coating pipe (2-1) inside the coating box, the recovery plate (2-2) scrapes off and recovers redundant coating on bare fibers, an air inlet pipe is arranged between the coating pipe (2-1) and the recovery plate (2-2) on the coating box, an electromagnetic valve is arranged inside the air inlet pipe, and the other end of the air inlet pipe is connected with a cooling box pipeline.
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| CN202110243465.XA CN112979183B (en) | 2021-03-05 | 2021-03-05 | Optical fiber drawing coating device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110243465.XA CN112979183B (en) | 2021-03-05 | 2021-03-05 | Optical fiber drawing coating device |
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| CN112979183B CN112979183B (en) | 2021-11-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113636763A (en) * | 2021-07-30 | 2021-11-12 | 阜阳市鑫盈田智能设备有限公司 | Coating equipment with uniform cooling mechanism for optical fiber processing |
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| CN112979183B (en) | 2021-11-05 |
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