CN218491633U

CN218491633U - Optical fiber coating and feeding device

Info

Publication number: CN218491633U
Application number: CN202221655538.2U
Authority: CN
Inventors: 王玉财; 李长通; 席飞宇; 张付磊
Original assignee: Huaneng Taian Optoelectronic Technology Co ltd
Current assignee: Huaneng Taian Optoelectronic Technology Co ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2023-02-17
Anticipated expiration: 2032-06-29

Abstract

The utility model discloses an optic fibre coating feedway, including coating buffer tank, bubble detection mechanism, defoaming jar, die holder and the waste material basin of keeping in, coating buffer tank one side be equipped with first conveying pipeline, first conveying pipeline on be equipped with bubble detection mechanism and first feed back pipe in proper order, first feed back pipe keep in jar, second feed back pipe through the defoaming and be connected with the coating buffer tank, first conveying pipeline one end pass through the second conveying pipeline and be connected with the die holder. The utility model discloses simple structure, reasonable in design, the coating of retrieving in the solution optic fibre coating feeding system often has the problem of inside and outside coating compounding, has carried out recovery, defoaming, recycle with combustion gas bubble coating, greatly reduced arrange the waste of material to reduce the cost of production. The bubble backflow point is arranged at the front section of the die holder, so that the phenomenon that the coating is recycled through the die holder to cause mixing of the inner coating and the outer coating is avoided; meanwhile, automation of discharging and recycling of bubbles is realized to the maximum extent, and labor cost is not increased.

Description

Optical fiber coating and feeding device

Technical Field

The utility model relates to an optical fiber processing equipment technical field specifically is an optic fibre coating feedway.

Background

When the optical fiber drawing wire is produced by replacing the rod with the preform, the pressure in the pipeline of the feeding system is consistent with the external pressure, the external air enters the coating pipeline to cause the air in the coating in the pipeline, if the coating has bubbles, the quality influence on the surface of the optical fiber can be generated in the production process, and therefore before the optical fiber is produced, the coating device needs to remove the coating with the bubbles in the coating pipeline.

The current operation is: the front end coating in the pipeline is removed by manual operation until no bubbles exist, and the removed coating cannot be recycled uniformly and is treated as waste, so that the resource waste is caused. Taking CN 105439470A as an example, the coating is recovered to another coating storage device at the lower part of the die holder, the recovered coating often has mixed materials of the inner and outer coatings, which affects the coating quality, and the recovered coating needs to be collected and summarized again by manpower, thus increasing the possibility of abnormal production of labor force and operation.

SUMMERY OF THE UTILITY MODEL

The utility model discloses be exactly to the above-mentioned not enough that prior art exists, provide an optic fibre coating feedway, be convenient for unify recovery processing to bubble coating, reduce the human cost when avoiding the wasting of resources.

In order to realize the purpose, the utility model provides the following technical scheme:

the utility model provides an optic fibre coating feedway includes the coating buffer tank, includes coating buffer tank, bubble detection mechanism, defoaming jar, die holder and the waste material basin of keeping in, coating buffer tank one side be equipped with first conveying pipeline, first conveying pipeline on be equipped with bubble detection mechanism and first feed back pipe in proper order, first feed back pipe keep in jar, second feed back pipe through the defoaming and be connected with the coating buffer tank, first conveying pipeline one end pass through the second conveying pipeline and be connected with the die holder.

Preferably, the bubble detection mechanism comprises a filter element and a bubble detector.

Preferably, a second pneumatic valve is arranged between the first conveying pipe and the first return pipe, and a first pneumatic valve is arranged between the first conveying pipe and the second conveying pipe.

Preferably, a three-way valve is arranged at the intersection of the first conveying pipeline, the first return pipe and the second conveying pipeline.

Preferably, the coating buffer tank comprises a water-bath heating cylinder body, a cylinder cover, a concentrated feeding conveying pipe, a first liquid level detection meter, a second liquid level detection meter and an air inlet.

Preferably, the device further comprises a pressure regulating valve, and the pressure regulating valve is connected with the air inlet.

Preferably, the temporary defoaming storage tank comprises a tank body, a third pneumatic valve, a third liquid level detector, a first return pipe, a second return pipe and a pressure release valve.

Compared with the prior art, the beneficial effects of utility model are that:

1. the utility model discloses simple structure, reasonable in design, the coating of retrieving often has the problem of inside and outside coating compounding among the solution optic fibre coating feeding system, has retrieved, the defoaming, recycled with combustion gas bubble coating, greatly reduced arrange the waste of material to reduction in production cost.

The bubble backflow point is arranged at the front section of the die holder, so that the phenomenon that the coating is recycled through the die holder to cause mixing of the inner coating and the outer coating is avoided; meanwhile, automation of bubble discharging and recycling is realized to the maximum extent, the labor cost is not increased, and the error of personnel operation is synchronously avoided.

2. The utility model discloses a coating buffer tank has water-bath heating defoaming function, through the heating to coating for the coating temperature risees, and viscosity reduces, accelerates the come-up and the elimination of bubble in the coating. And this device has carried out twice filtration when the defeated material, can enough reduce the pollution of impurity in the coating to the filter core, reduces the frequency of the change of filter core in order to reduce the cost of production, improvement coated quality that can also be better.

3. The utility model discloses all adopted the slope structure on concentrating feed conveying pipeline, first feed back pipe and second feed back pipe for it contacts with coating buffer tank or defoaming temporary storage tank inner wall, and the bubble that can reduce when coating gets into coating buffer tank or defoaming temporary storage tank produces

Drawings

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

FIG. 2 is a schematic view of a paint buffer tank;

fig. 3 is a schematic view of the defoaming buffer tank.

In the figure:

1-coating buffer tank, 1-1 water-bath heating cylinder, 1-2 barrel covers, 1-3 concentrated feed conveying pipes, 1-4 first liquid level detection meters, 1-5 second liquid level detection meters, 1-6 air inlets, 2-defoaming temporary storage tanks, 2-1 tank bodies, 2-2 third pneumatic valves, 2-3 third liquid level detection meters, 2-4 first return pipes, 2-5 second return pipes, 2-6 pressure relief valves, 3-filter elements, 4-bubble detection meters, 5-three-way valves, 6-first pneumatic valves, 7-second pneumatic valves, 8-die holders, 9-pressure regulating valves, 10-controllers, 11-1 first conveying pipes, 11-2 second conveying pipes and 12-waste material basins.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

The utility model provides an optic fibre coating feedway, includes coating buffer tank 1, bubble detection mechanism, defoaming jar 2, die holder 8 and waste material basin 12 of keeping in, coating buffer tank 1 is located the wire drawing tower side, connects through nonrust steel pipe between each part. The device is provided with two groups which are respectively positioned at two sides of the die holder 8, and figure 1 is a structural schematic diagram of one group of the device. One of the groups is inner layer coating, the other group is outer layer coating, and the inner layer and the outer layer of the prefabricated rod are coated simultaneously during coating.

The coating buffer tank 1 is characterized in that a first material conveying pipe 11-1 is arranged on one side of the coating buffer tank 1, the coating buffer tank 1 comprises a water bath heating cylinder 1-1, a cylinder cover 1-2, a concentrated feeding material conveying pipe 1-3, a first liquid level detection meter 1-4, a second liquid level detection meter 1-5 and an air inlet 1-6, the first liquid level detection meter 1-4 is a high liquid level detection meter, the second liquid level detection meter 1-5 is a low liquid level detection meter, the joint of the air inlet 1-6 and the heating cylinder 1-1 is higher than the first liquid level meter 1-4, and the liquid level detection meter is in the type of an easy-to-find gate LK series.

The air inlet 1-6 is arranged on one side of the upper end of the water bath heating cylinder 1-1, and the volume from the air inlet 1-6 to the first liquid level detection meter 1-4 in the cylinder is larger than the volume of the defoaming temporary storage tank 2, so that the phenomenon that the bubble coating flows back too much to block the feed inlet is avoided. The water-bath heating cylinder 1-1 is connected with the barrel cover 1-2 by 8M 14 screws.

The tail ends of the concentrated feeding material conveying pipes 1-3 are obliquely arranged so as to be in contact with the inner wall of the coating buffer tank 1, so that bubbles generated when the coating enters the coating buffer tank 1 are reduced. The water bath heating cylinder 1-1 works, and the coating is heated by the water bath heating cylinder 1-1, so that the temperature of the coating is increased, the viscosity is reduced, and the floating and elimination of bubbles in the coating are accelerated.

The upper side in the water-bath heating cylinder 1-1 is provided with a first liquid level detector 1-4, and the lower side is provided with a second liquid level detector 1-5. When the liquid level of the coating is lower than the second liquid level detector 1-5, the system supplies the coating to the coating buffer tank 1; when the paint reaches the first level detection gauge 1-4, the system automatically stops the paint supply.

The first material conveying pipe 11-1 is sequentially provided with a bubble detection mechanism and a first material return pipe 2-4, and the bubble detection mechanism comprises a filter element 3 and a bubble detector 4.

A 5-micrometer filter is arranged at the starting port of the first material conveying pipe 11-1 to filter impurities in the coating for one time, so that the pollution of the impurities in the coating to the filter element 3 is reduced, the replacement frequency of the filter element 3 is reduced, and the production cost is further reduced; the filter element 3 filters the impurities in the coating for the second time by filtering with the size of 3 mu m, thereby better improving the coating quality.

The bubble detection meter 4 is automatically started during discharging, when bubbles are detected, the first pneumatic valve 6 is closed, the second pneumatic valve 7 is opened, and the coating flows back to the defoaming temporary storage tank 2 through the three-way valve 5; after the bubble detection meter 4 does not detect bubbles within a certain period of time, the bubble detection meter 4 is closed, the second pneumatic valve 7 is closed, the first pneumatic valve 6 is started, the material is discharged for a certain period of time continuously, the material discharge is automatically stopped, and the material discharge is finished when a team member operator is prompted by sound.

The defoaming temporary storage tank 2 comprises a tank body 2-1, a third pneumatic valve 2-2, a third liquid level detector 2-3, a first return pipe 2-4, a second return pipe 2-5 and a pressure release valve 2-6. The first return pipe 2-4 is connected with the coating buffer tank 1 through a defoaming temporary storage tank 2 and a second return pipe 2-5,

one end of the first material conveying pipe 11-1 is connected with the die holder 8 through the second material conveying pipe 11-2. And a three-way valve 5 is arranged at the intersection of the first material conveying pipe 11-1, the first return pipe 2-4 and the second material conveying pipe 11-2. A second pneumatic valve 7 is arranged between the first material conveying pipe 11-1 and the first material return pipe 2-4, and a first pneumatic valve 6 is arranged between the first material conveying pipe 11-1 and the second material conveying pipe 11-2.

The device also comprises a pressure regulating valve 9, and the pressure regulating valve 9 is connected with the air inlets 1-6. When discharging is needed, the pressure regulating valve 9 outputs pressure, the coating buffer tank 1 starts to press materials, and the bubble detector 4 starts to operate.

Defoaming temporary storage tank 2 is installed on the upper portion of coating buffer tank 1, and the terminal slope of first feed back pipe 2-4 sets up to with 2 inner wall contacts of defoaming temporary storage tank, in order to reduce the bubble that coating got into coating defoaming temporary storage tank 2 and produce.

The upper part of the defoaming temporary storage tank 2 is provided with a pressure release valve 2-6, and the air pressure in the tank can be kept in a normal pressure state all the time under the action of the pressure release valve 2-6 along with the continuous addition of the bubble coating.

When the liquid level of the bubble coating reaches the third liquid level detector 2-3, the pressure regulating valve 9 is suspended to release the pressure to 0bar, the first pneumatic valve 6 and the second pneumatic valve 7 are all closed, the material is discharged in a suspended mode, the third pneumatic valve 2-2 is automatically opened, the bubble coating in the defoaming temporary storage tank 2 flows back to the coating buffer tank 1 under the action of gravity, after the automatic flow returns for 3min, the third pneumatic valve 2-2 is automatically closed, the pressure regulating valve 9 supplies pressure again, the first pneumatic valve 6 is kept closed, and the second pneumatic valve 7 continues to discharge the material.

Defoaming is kept in and is linked to each other with third pneumatic valve 2-2 under jar 2, when arranging material or normal production, third pneumatic valve 2-2 is closed, carry out the collection of bubble coating, when the bubble backflow time reaches a setting value, pressure regulating valve 9 automatic stop atmospheric pressure supply is in order to stop row material, and close first pneumatic valve 6, second pneumatic valve 7, open third pneumatic valve 2-2, and bubble coating is through second return pipe 2-5 automatic backward flow to coating buffer tank 1 under the effect of gravity, the terminal slope of second return pipe 2-5 set up for its and 1 inner wall contact of coating buffer tank, produce with the bubble that reduces when coating gets into coating buffer tank 1.

When discharging is needed, the pressure regulating valve 9 outputs pressure, the coating buffer tank 1 starts to press materials, and the bubble detector 4 starts to operate. The coating flows to the bubble detection meter 4 after passing through the filter element 3 by the first material conveying pipe 11-1, when the bubble detection meter 4 detects bubbles, the first pneumatic valve 6 is automatically closed, the second pneumatic valve 7 is automatically opened, and the coating reaches the defoaming temporary storage tank 2 for temporary storage through the three-way valve 5 and the second pneumatic valve 7.

When the bubble detector 4 does not detect bubbles for 60 seconds continuously, the bubble detector 4 is automatically closed, the second pneumatic valve 7 is automatically closed, the first pneumatic valve 6 is automatically opened, the coating sequentially passes through the filter element 3, the bubble detector 4, the three-way valve 5 and the first pneumatic valve 6 to reach the die holder 8 and then is discharged into the manually placed waste material basin 12, after the continuous material discharge is carried out for 60 seconds, the material discharge is carried out to discharge the residual coating in the second material return pipe 11-2, the coating in the section of pipe is prevented from containing bubbles to influence the coating quality, after 60 seconds, the material discharge is automatically stopped, at the moment, a voice prompts a master operator, and the master operator removes the waste material basin 12 to carry out the die penetrating preparation.

After the drawing of the root preform is finished, the coating buffer tank 1 is restored to the normal pressure state, the third pneumatic valve 2-2 is automatically opened, the bubble coating automatically flows back to the coating buffer tank 1 under the action of gravity, and is heated in a water bath for 45 degrees to defoam, so that the coating quality of the lower preform is not influenced, the first pneumatic valve 6 is automatically closed, and the effect of blocking the backflow of bubbles can be achieved; when discharging again, the first pneumatic valve 6 is kept closed, the second pneumatic valve 7 is automatically opened, the third pneumatic valve 2-2 is automatically closed, and the above procedures are carried out again.

Example 2

On the basis of embodiment 1, still include a peripheral hardware controller, coating buffer tank 1, defoaming temporary storage tank 2, bubble detection meter 4, three-way valve 5, first pneumatic valve 6, second pneumatic valve 7, die holder 8, pressure regulating valve 9 all be connected with the controller, control each part after the controller accepts the signal, accomplish operations such as detection bubble and elimination bubble.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides an optic fibre coating feedway, includes coating buffer tank, bubble detection mechanism, defoaming jar, die holder and waste material basin of keeping in, its characterized in that, coating buffer tank one side be equipped with first conveying pipeline, first conveying pipeline on be equipped with bubble detection mechanism and first feed back pipe in proper order, first feed back pipe keep in jar, second feed back pipe through the defoaming and be connected with the coating buffer tank, first conveying pipeline one end pass through the second conveying pipeline and be connected with the die holder.

2. An optical fiber coating supply as in claim 1 wherein the bubble detection means comprises a filter element and a bubble detector.

3. An optical fiber coating applicator as claimed in claim 2, wherein a second pneumatic valve is provided between said first feed conduit and said first return conduit, and a first pneumatic valve is provided between said first feed conduit and said second feed conduit.

4. An optical fiber coating feeding device according to claim 3, wherein a three-way valve is provided at a junction of the first feeding tube, the first return tube and the second feeding tube.

5. The apparatus of claim 4, wherein the buffer tank comprises a water bath heating cylinder, a lid, a concentrate feed conduit, a first level detector, a second level detector, and an air inlet.

6. The optical fiber coating feeder of claim 5, further comprising a pressure regulating valve, wherein the pressure regulating valve is connected to the gas inlet.

7. The optical fiber coating feeding device according to claim 6, wherein the defoaming temporary storage tank comprises a tank body, a third pneumatic valve, a third liquid level detector, a first return pipe, a second return pipe and a pressure release valve.