Disclosure of Invention
The invention aims to provide a negative pressure device for gluing an optical fiber capillary, which is used for solving the problem that bubbles are easy to generate when the optical fiber capillary is glued.
In order to achieve the purpose, the invention provides the technical scheme that the negative pressure device for the optical fiber capillary glue spraying comprises a glue storage tank, a pushing device and a vacuum device.
The glue storage tank is used for placing sealant. The pushing device is used for pushing the sealant into the optical fiber capillary, the optical fiber capillary is provided with a first pipe orifice and a second pipe orifice, the first pipe orifice is communicated with the second pipe orifice, one end of the glue storage tank is connected with the pushing device, and the other end of the glue storage tank is connected with the first pipe orifice of the optical fiber capillary. The vacuum device is connected with the second pipe orifice.
The vacuum device is used for exhausting air in the optical fiber capillary channel out of the vacuum device, so that the sealant moves towards the second pipe orifice and fills the optical fiber capillary.
Further, the first pipe orifice is provided with a conical hole, one end with a large cross section of the conical hole faces the glue storage tank, one end with a small cross section of the conical hole faces the second pipe orifice, and the cross section of the first pipe orifice is larger than that of the second pipe orifice.
Further, the vacuum device comprises a buffer assembly and a driving assembly, and the buffer assembly is connected with the driving assembly.
Further, the buffer assembly comprises a buffer tube, a buffer tank and a first valve, wherein the buffer tube is close to one end of the optical fiber capillary tube and is connected with the second tube orifice, the first valve is connected with the bottom of the buffer tube and is connected with the buffer tank, and the buffer tube is made of transparent materials.
Further, the driving assembly comprises an air pipe and a driver, one end of the air pipe is connected with the buffer pipe, the other end of the air pipe is connected with the driver, and the driver is used for sucking air and discharging the air out of the negative pressure device.
Further, the driving assembly further comprises an inductor and a controller, wherein the inductor is arranged on the side wall of the buffer tube and is higher than the second tube orifice, and the controller is electrically connected with the inductor.
Further, the pushing device further comprises a rubber injection pipe, one end of the rubber injection pipe is connected with the first pipe orifice, the other end of the rubber injection pipe is connected with the rubber storage tank, and the rubber injection pipe is made of transparent materials.
Further, a second valve is arranged between the rubber injection pipe and the rubber storage tank and used for controlling the sealant to enter the rubber injection pipe.
Further, the pushing device comprises a piston and a piston rod, wherein the piston is connected with the piston rod, and the piston is internally provided with a glue storage tank or externally provided with the glue storage tank.
Further, the glue storage tank is made of transparent materials.
Compared with the prior art, the negative pressure device for gluing the optical fiber capillary has the beneficial effects that:
A negative pressure device for gluing an optical fiber capillary comprises a glue storage tank, a pushing device and a vacuum device. The device comprises a glue storage tank, a pushing device, a vacuum device and a vacuum device, wherein the glue storage tank is used for placing sealant, the pushing device is used for pushing the sealant into an optical fiber capillary, the optical fiber capillary is provided with a first pipe orifice and a second pipe orifice, the first pipe orifice is communicated with the second pipe orifice, one end of the glue storage tank is connected with the pushing device, the other end of the glue storage tank is connected with the first pipe orifice of the optical fiber capillary, the vacuum device is connected with the second pipe orifice, and the vacuum device is used for discharging air in an optical fiber capillary channel out of the vacuum device so that the sealant moves towards the second pipe orifice and fills the optical fiber capillary. The negative pressure device is arranged at two ends of the optical fiber capillary, when the optical fiber is arranged in the optical fiber capillary, the sealant is moved from the first pipe orifice to the second pipe orifice in a vacuum mode and is filled in the optical fiber capillary, the negative pressure device is basically not interfered by external environment, the condition that the bubble of the adhesive tape is beaten into the optical fiber capillary under normal pressure is avoided, the adhesive tape beating quality of the optical fiber capillary is improved, the adhesive injection precision is high, and the optical conduction performance of the optical fiber capillary is also improved.
Detailed Description
For the purpose of making the technical solution and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and examples of implementation. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
The fiber capillary is used in high-speed optical analog device, fiber collimator, tail fiber assembly, limited vision network, optical active and passive device, DWFM and photoelectric equipment, and the optical transmission is realized by utilizing the total reflection principle of light in glass or plastic fiber. In order to encapsulate the optical fiber in the capillary, in the conventional optical fiber glue injection method, glue is usually injected into the capillary manually, so that the optical fiber is fixed in the capillary. However, due to the difference between the operation environment and the operation method, the colloid inevitably wraps part of bubbles and remains in the fiber capillary, and bubbles appear in the fiber capillary after the glue injection is completed, so that the light transmission performance of the fiber capillary is seriously affected by the existence of the bubbles.
In view of the above, the invention provides a negative pressure device for gluing an optical fiber capillary, which solves the problem that bubbles are easy to generate in gluing the optical fiber capillary.
Referring to fig. 1-3, the present invention provides a negative pressure device for dispensing an optical fiber capillary, which includes a glue storage tank 100, a pushing device 200 and a vacuum device 300.
The glue storage tank 100 is used for placing the sealant 110, and further, a glue injection hole can be formed in the upper end of the glue storage tank 100 and used for injecting the sealant 110 into the glue storage tank 100, and when the quantity of the sealant 110 in the glue storage tank 100 is too small, the sealant can be added through the glue injection hole. The sealant 110 may be subjected to a defoaming treatment or a heating treatment before injection, and the bubble generation rate may be reduced.
The pushing device 200 is used for pushing the sealant 110 into the fiber capillary 400, the fiber capillary 400 is provided with a first orifice 410 and a second orifice 420, the first orifice 410 is communicated with the second orifice 420, one end of the glue storage tank 100 is connected with the pushing device 200, and the other end of the glue storage tank 100 is connected with the first orifice 410 of the fiber capillary 400.
The vacuum apparatus 300 is connected to the second nozzle 420, and may be any component that can vacuum the inner cavity of the fiber capillary 400.
The vacuum device 300 is used for exhausting air in the optical fiber capillary 400 channel out of the vacuum device 300, so that the sealant 110 moves towards the second nozzle 420 and fills the optical fiber capillary 400.
In this design, the negative pressure device is installed at two ends of the optical fiber capillary 400, when the optical fiber 440 is placed in the optical fiber capillary, the sealant 110 is moved from the first pipe orifice 410 to the second pipe orifice 420 in a vacuum manner and fills the optical fiber capillary 400, so that the situation that the adhesive tape bubbles enter the optical fiber capillary 400 under normal pressure is avoided, the adhesive tape beating quality of the optical fiber capillary 400 is improved, and the light conduction performance of the optical fiber capillary 400 is also improved.
To facilitate the injection of the sealant 110 into the optical fiber capillaries, the first nozzle 410 may be provided as a tapered hole 430, the end of the tapered hole 430 having a large cross section is directed toward the glue reservoir 100, the end of the tapered hole 430 having a small cross section is directed toward the second nozzle 420, and the cross section of the first nozzle 410 is larger than that of the second nozzle 420.
By adopting the tapered hole 430, the cross section of the first nozzle 410 is larger than that of the second nozzle 420, so that when glue is injected, the sealant 110 in the glue storage tank 100 can quickly enter the optical fiber capillary 400, and flows from the first nozzle 410 to the second nozzle 420 to quickly fill the optical fiber capillary 400, thereby improving the glue injection efficiency of the optical fiber capillary 400.
Specifically, the vacuum apparatus 300 includes a buffer assembly 310 and a driving assembly 320, and the buffer assembly 310 is connected to the driving assembly 320. After the sealant 110 comes out of the second nozzle 420, the buffer assembly 310 can store the overflowed sealant 110, so that the second nozzle 420 of the fiber capillary 400 can be filled with the sealant 110, and the quality of the fiber capillary 400 is improved.
In order to avoid poor filling effect due to uneven inner wall of the optical fiber capillary 400 when the optical fiber capillary 400 is filled with the sealant 110, and to facilitate observation of the glue injection progress. Buffer assembly 310 may further comprise buffer tube 311, buffer tank 312 and first valve 313, buffer tube 311 is near one end of optical fiber capillary 400 and is connected with second nozzle 420, the other end of buffer tube 311 is connected with first valve 313, first valve 313 is connected at the bottom of buffer tube 311 and is connected with buffer tank 312, and buffer tube 311 adopts the transparent material. In one embodiment, the first valve 313 is opened, the driving device operates, when air in the fiber capillary 400 is slowly led out to the atmosphere, the pressure in the fiber capillary 400 is lower than the atmospheric pressure, the sealant 110 moves from the first nozzle 410 to the second nozzle 420 from the glue storage tank 100, then enters the buffer tube 311, flows into the buffer tank 312, and flows through the sealant 110 for the first time on the inner wall of the fiber capillary 400, so that the uneven structure of the inner wall of the fiber capillary 400 is filled and smoothed. The first valve 313 is then closed, the fiber capillary 400 is subjected to a second sealant 110 flow, and operation of the drive assembly 320 is stopped after the sealant 110 fills the second orifice 420 of the fiber capillary 400. The buffer tube 311 may be a tube made of any one of rubber, plastic, and resin, and has transparent and easy-to-observe properties.
In this design, the first valve 313 is opened, the first sealant 110 is moved on the inner wall of the optical fiber capillary 400, so that the first sealant 110 flows into the buffer tank 312, the uneven structure on the inner wall of the optical fiber capillary 400 can be filled and smoothed, and then the second sealant 110 is filled into the optical fiber capillary 400, so that the filling effect of the inner wall of the optical fiber capillary 400 due to the uneven structure is avoided, the possibility of gaps in the optical fiber capillary 400 is reduced, and the quality and effect of glue injection are improved. Meanwhile, the transparent buffer tube 311 can be adopted, so that the overflow condition of the sealant 110 after being filled with the optical fiber capillary 400 can be easily observed, and real-time control and adjustment can be performed.
Specifically, the driving assembly 320 may include an air tube 322 and a driver 323, one end of the air tube 322 is connected to the buffer tube 311, the other end is connected to the driver 323, and the air tube 322 is disposed on top of the buffer tube 311 and parallel to a cross section where the second nozzle 420 is located. The driver 323 is used for sucking air and discharging the air out of the negative pressure device. The actuator 323 can be any component that creates a vacuum in the interior of the fiber optic capillary 400, as long as it is sufficient to move the sealant 110 from the first orifice 410 to the second orifice 420 of the fiber optic capillary 400 by the actuator assembly 320. When the driver 323 is operated, air in the fiber capillary 400 is slowly led out to the atmosphere, the pressure in the fiber capillary 400 is lower than the atmospheric pressure, and the sealant 110 moves from the first nozzle 410 to the second nozzle 420 of the sealant storage tank 100. The driver 323 may be a compressor or a vacuum pump. When the driver 323 is a vacuum pump, the vacuum pump can collect gas molecules in the system, and when the gas density reaches the working range of the mechanical vacuum pump, the gas is pumped out of the driver 323, so that a vacuum state is gradually obtained.
In order to intelligently control the driver 323 to stop running after the optical fiber capillary 400 is injected with the glue, the driving assembly 320 further comprises an inductor 321 and a controller 324, the inductor 321 is arranged on the side wall of the buffer tube 311 and is higher than the second tube orifice 420, and the controller 324 is electrically connected with the inductor 321. When the sealant 110 is filled in the optical fiber capillary 400, if no operator is in the field, the sealant 110 continuously overflows into the buffer tube 311, and when the sealant 110 reaches the position of the sensor 321, the sensor 321 senses a signal and transmits the signal to the controller 324, the controller 324 controls the driver 323 to stop the operation of the driver 323, so that the sealant 110 stops flowing.
In the design, the inductor 321 is arranged on the side wall of the buffer tube 311, and the mounting position is higher than that of the second tube orifice 420, so that on one hand, the sealant 110 can overflow the second tube orifice 420 to ensure the quality of the sealant injection of the optical fiber capillary 400, and on the other hand, the driver 323 can be intelligently controlled under unmanned operation, and when the sealant injection is completed, the driver 323 stops running, the sealant 110 is prevented from continuing to flow, and the driver 323 is prevented from being influenced, so that the intellectualization of the sealant injection process of the optical fiber capillary 400 is improved.
In order to facilitate observation that the sealant 110 enters the optical fiber capillary 400 and that the sealant 110 may have a buffer time before entering the optical fiber capillary 400, the pushing device 200 may further include a glue injection tube 210, one end of the glue injection tube 210 is connected to the first tube orifice 410, the other end is connected to the glue storage tank 100, and the glue injection tube 210 is made of a transparent material. The glue injection tube 210 is used for connecting the glue storage tank 100 and the optical fiber capillary 400, so that the situation that the opening of the glue storage tank 100 is too large, the first tube orifice 410 directly connected with the optical fiber capillary 400 is inappropriate, and when the diameter of the optical fiber capillary 400 is changed, the glue injection tube 210 can correspondingly adapt to the size of the optical fiber capillary 400, and glue injection is facilitated. Meanwhile, the glue injection pipe 210 can be made of any one of rubber, plastic and resin and has transparent and easy-to-observe properties, so that the situation that the sealant 110 enters the optical fiber capillary 400 can be observed conveniently, and the glue injection rate of the sealant 110 can be observed and controlled in real time.
In order to facilitate the adjustment of the sealant 110 entering the optical fiber capillary 400 and prevent the sealant 110 from entering the optical fiber capillary 400 too much to cause blockage, a second valve 500 may be disposed between the glue injection tube 210 and the glue storage tank 100 for controlling the sealant 110 to enter the glue injection tube 210. Through adjusting the second valve 500, control the process of sealed glue 110, also can make things convenient for the storage tank 100 to add sealed glue 110, when the sealed glue 110 quantity of storage tank 100 is too little, stop driving assembly 320's operation, close second valve 500, follow injecting glue mouth and pour into sealed glue 110 into storage tank 100, in time supply the sealed glue 110 in the storage tank 100, avoid sealed glue 110 to influence the operation of device too little.
The pushing device 200 may be any component that is translatable axially along the fiber optic capillary 400. Further, the pushing device 200 includes a piston 220 and a piston rod 230, and the piston 220 is connected to the piston rod 230. The piston 220 may be internal to the glue reservoir 100 or the piston 220 may be external to the glue reservoir 100. When the glue storage tank 100 is arranged in the piston 220, the piston 220 is connected with the inner wall of the glue storage tank 100, and can be connected by adopting a sealing ring, the sealing ring is fixed at the outer edge of the piston 220 and is contacted with the inner wall of the glue storage tank 100, and the piston 220 axially translates along the optical fiber capillary 400 in the glue storage tank 100. The piston 220 may take the form of a disc or cylinder. When the piston 220 is arranged outside the glue storage tank 100, the piston 220 is connected with the glue storage tank 100 at one side away from the glue injection pipe 210, the piston 220 is in sliding connection with the glue storage tank 100, and when the device is in a vacuum state, the device can move through the piston 220 to push the sealant 110 to move towards the second pipe orifice 420.
In order to facilitate observation of the quantity of the sealant 110 in the sealant storage tank 100, further, the sealant storage tank 100 is made of transparent materials, and can be made of any one of rubber, plastic and resin, and has transparent and easy-to-observe properties, so that the sealant 110 in the sealant storage tank 100 can be observed conveniently, and the sealant 110 can be observed in real time and added timely.
In another embodiment, the pushing device 200 may include a tapered sleeve 240, where the tapered sleeve 240 is disposed along an axial direction, an inner wall of the tapered sleeve 240 is connected with an outer wall above the optical fiber capillary 400, an opening of the tapered sleeve 240 faces upward along the axial direction of the optical fiber capillary 400, so that the sealant 110 of the sealant storage tank 100 is conveniently injected into the optical fiber capillary 400, the sealant 110 may be poured from the opening of the tapered sleeve 240, the sealant 110 may be guided to quickly enter the optical fiber capillary 400, and the sealant 110 may be prevented from splashing out of the optical fiber capillary 400.
The vacuum apparatus may further include a buffer tube 311, an inductor 321, an air tube 322, and a driver 323. One end of the buffer tube 311 is connected to the outer wall of the fiber capillary 400, and the other end is connected to the air tube 322. The air tube 322 may be disposed on the outer wall of the buffer tube 311 adjacent to one side of the tapered sleeve 240 and parallel to the cross section of the second nozzle 420, with one end of the air tube 322 connected to the buffer tube 311 and the other end connected to the driver 323.
In order to intelligently control the driver 323 to stop running after the optical fiber capillary 400 is injected with glue, an inductor 321 and a controller 324 are arranged, the inductor 321 is arranged on the side wall of the buffer tube 311 and is higher than the section where the second tube orifice 420 is located, and the controller 324 is electrically connected with the inductor 321. When the sealant 110 is filled in the optical fiber capillary 400, if no operator is in the field, the sealant 110 continuously overflows into the buffer tube 311, and when the sealant 110 reaches the position of the sensor 321, the sensor 321 senses a signal and transmits the signal to the controller 324, the controller 324 controls the driver 323 to stop the operation of the driver 323, and the sealant 110 stops flowing. In this design, the inductor 321 is arranged on the side wall of the buffer tube 311, and the installation position is higher than the second tube orifice 420, so that on one hand, the sealant 110 can overflow the second tube orifice 420 to ensure the quality of the sealant injection of the optical fiber capillary 400, and on the other hand, the driver 323 can be intelligently controlled under unmanned operation, and when the sealant injection is completed, the driver 323 stops running, so that the influence on the driver 323 caused by the continuous flow of the sealant 110 is avoided.
The optical fiber 440 is placed in the optical fiber capillary 400, when the sealant 110 is injected into the optical fiber capillary 400 from the upper end opening of the conical sleeve 240, the driver 323 operates to gradually form a vacuum state in the optical fiber capillary 400, and the sealant 110 is guided to flow into the buffer tube 311 from the optical fiber capillary 400 and fill the second tube orifice 420 under the vacuum state, so that the adhesive tape bubble is prevented from entering the optical fiber capillary 400 under normal pressure, and the adhesive tape quality of the optical fiber capillary 400 is improved.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the invention, but any modifications, equivalents, improvements, etc. within the principles of the present invention should be included in the scope of the present invention.