Feeding device for optical fiber drawing

Abstract

The invention discloses a feeding device for optical fiber drawing, which ensures the temperature of a coating flowing out, reduces the generation of optical fiber coating defects, improves the qualified rate of prefabricated rods and reduces the production cost. The device comprises a movable base, the movable base comprises a bottom base body and an upper supporting plate, a lifting air cylinder and a rotating shaft are arranged in the bottom base body, a downward-protruding pivot joint base is arranged in the middle of the upper supporting plate in the length direction, and the downward-protruding pivot joint base is connected with the rotating shaft; the upper piston end of the lifting air cylinder is connected with the lower surface of one end of the upper bearing plate in the length direction in a pivoted mode. The large buffer tank is a tank body with a hollow double-layer pipe wall, a hollow layer of the large buffer tank is externally connected with a water bath box, the water bath box is used for pouring hot water into the hollow layer of the large buffer tank, and an inner cavity of the large buffer tank is used for containing a coating; and paint is placed in a tank cavity of a tank body of the small buffer tank.

Description

Technical Field

[0001] The invention relates to the technical field of optical fiber production, in particular to a feeding device for optical fiber drawing. Background Art

[0002] With the changes in market demand, optical fiber manufacturers are constantly researching high-speed drawing technology, hoping to further increase the drawing speed of optical fiber and improve its production efficiency to adapt to the development of the times, and then introduce high-viscosity coatings, which have greater viscosity than ordinary coatings and poor fluidity, especially in low-temperature environments. Small bubbles mixed in the coating cannot float out in a short time, resulting in optical fiber coating. When some optical fiber manufacturers use large barrels of coatings for online feeding, the surface of the barrel is wrapped with a constant temperature heating blanket, and the temperature of the coating in the barrel is controlled by a temperature probe. The cost is high and the heating blanket is installed during transportation during material change. The temperature probe is easily damaged, and the coating temperature is unstable, which cannot guarantee stable optical fiber production. Summary of the invention

[0003] In view of the above problems, the present invention provides a feeding device for optical fiber drawing, which ensures the temperature of the outflowing coating, reduces the occurrence of optical fiber coating defects, improves the qualified rate of preform rods, and reduces production costs.

[0004] A feeding device for optical fiber drawing, characterized in that it comprises:

[0005] The movable base comprises a bottom seat body and an upper supporting plate, wherein a lifting cylinder and a rotating shaft are arranged in the bottom seat body, a lower convex pivot seat is arranged in the middle of the length direction of the upper supporting plate, the lower convex pivot seat is connected to the rotating shaft, and the upper piston end of the lifting cylinder is pivotally connected to the lower surface of one end of the upper supporting plate in the length direction;

[0006] A large buffer tank is a hollow double-walled tank, the hollow layer of the large buffer tank is externally connected to a water bath, the water bath is used to pour hot water into the hollow layer of the large buffer tank, and the inner cavity of the large buffer tank is used to place paint;

[0007] and a small buffer tank, in which the coating is placed in the tank cavity of the tank body;

[0008] A paint barrel body is placed on the upper surface of the upper support plate of the movable base, and a discharge port is arranged on one side of the bottom of the paint barrel body. The discharge port is arranged toward the large buffer tank, and the discharge port is connected to the tank body of the large buffer tank through a first supply hose. The large buffer tank is also equipped with a second supply hose, and the second supply hose is externally connected to the inlet of a booster pump. The outlet of the booster pump is connected to the inner cavity of the small buffer tank through a paint pipeline. The small buffer tank is used to be connected to the drawing tower die base through a pipeline.

[0009] It is further characterized by:

[0010] The water bath is located above the large buffer tank, the water outlet of the water bath is connected to the upper area of ​​the hollow layer through a first pipeline, the water return port of the water bath is connected to the bottom of the hollow layer through a second pipeline, a drainage pump is provided on the second pipeline, a water valve is provided on the first pipeline, and a heating module is provided in the water bath to ensure that the hot water in the water bath can reliably heat the coating;

[0011] It also includes a control panel, a temperature sensor is arranged in the large buffer tank, a liquid level meter is inserted in the inner cavity of the coating barrel near the discharge port, the temperature sensor is connected to the control panel, the liquid level meter is externally connected to the control panel, and the control panel controls and connects the booster pump, the drainage pump, the water valve, and the lifting cylinder;

[0012] The temperature sensor senses the temperature of the paint in the large buffer tank. When the temperature of the paint is too low, the drainage pump is turned on to inject low-temperature hot water into the water bath. At the same time, the water valve is opened to inject high-temperature hot water into the hollow layer until the paint temperature reaches a suitable temperature range. When the liquid level meter senses the liquid level transition, the control panel controls the lifting cylinder to move, so that the corresponding discharge port of the upper support plate tilts downward, and then the discharge port supplies paint to the inner cavity of the large buffer tank through the first supply hose;

[0013] The reference height of the upper support plate of the movable base is higher than the top of the large buffer tank, ensuring that the paint barrel can reliably input paint into the large buffer tank without external power;

[0014] The bottom of the large buffer tank is provided with a raised base, which makes the pipelines of the first feeding hose and the second feeding hose used in the entire feeding device relatively short, thereby improving the transportation time of the paint from the paint barrel to the inner cavity of the small buffer tank;

[0015] The upper surface of the upper support plate is a wear-resistant layer with high friction. The maximum inclination angle of the end face of the upper support plate corresponding to the discharge port is 5°, which ensures that when the lifting cylinder is in action, the paint barrel body cannot be displaced due to friction.

[0016] After adopting the above technical scheme, the paint barrel is taken out of the oven, placed on the upper support plate of the movable base, and flows to the inner cavity of the large buffer tank through the first feeding hose. The large buffer tank is heated by the water bath, and the paint in the large buffer tank flows into the booster pump through the second feeding hose 2. The paint is sent to the small buffer tank along the paint pipeline by controlling the flow rate of the booster pump. The paint in the small buffer tube is then connected to the drawing tower die base through a pipeline. When the liquid level of the paint barrel is lower than the set value, the control panel adjusts the inclination of the upper support plate by driving the lifting cylinder, so that the paint continues to be fed to the large buffer tank; it ensures the temperature of the outflowing paint, reduces the occurrence of optical fiber coating defects, improves the qualified rate of preform rods, and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] The names corresponding to the serial numbers in the figure are as follows:

[0019] Paint barrel body 10, discharge port 11, movable base 20, bottom seat body 21, upper support plate 22, lower convex pivot seat 221, lifting cylinder 23, rotating shaft 24, large buffer tank 30, hollow layer 31, inner cavity 32, small buffer tank 40, water bath box 50, first pipeline 51, second pipeline 52, first feed hose 60, second feed hose 70, booster pump 80, paint pipeline 90, drain pump 100, control panel 110, raised base 120, water valve 130. DETAILED DESCRIPTION

[0020] A feeding device for optical fiber drawing, see Figure 1 , which includes a paint barrel 10, a movable base 20, a large buffer tank 30, and a small buffer tank 40;

[0021] The movable base 20 includes a bottom base body 21 and an upper support plate 22. A lifting cylinder 23 and a rotating shaft 24 are arranged in the bottom base body 21. A lower convex pivot seat 221 is arranged in the middle of the length direction of the upper support plate 22. The lower convex pivot seat 221 is connected to the rotating shaft 24. The upper piston end of the lifting cylinder 23 is pivotally connected to the lower surface of one end of the upper support plate 22 in the length direction.

[0022] The large buffer tank 30 is a hollow double-walled tank. The hollow layer 31 of the large buffer tank 30 is externally connected to a water bath 50. The water bath 50 is used to pour hot water into the hollow layer 31 of the large buffer tank 30. The inner cavity 32 of the large buffer tank 30 is used to place paint.

[0023] The paint is placed in the tank cavity of the small buffer tank 40; the paint barrel body 10 is placed on the upper surface of the upper support plate 22 of the movable base 20, and a discharge port 11 is arranged on one side of the bottom of the paint barrel body 10, and the discharge port 11 is arranged toward the large buffer tank 30, and the discharge port 11 is connected to the inner cavity 32 of the large buffer tank 30 through the first supply hose 60. The large buffer tank 30 is also installed with a second supply hose 70, and the second supply hose 70 is externally connected to the inlet of a booster pump 80, and the outlet of the booster pump 80 is connected to the inner cavity of the small buffer tank 40 through a paint pipe 90. The small buffer tank 40 is used to be connected to the drawing tower die base through a pipeline (not shown in the figure, belonging to the existing mature technology).

[0024] During specific implementation, the water bath 50 is located above the large buffer tank 30, the water outlet of the water bath 50 is connected to the upper area of ​​the hollow layer 31 through the first pipe 51, the water return port of the water bath 50 is connected to the bottom of the hollow layer 31 through the second pipe 52, the second pipe 52 is provided with a drainage pump 100, the first pipe 51 is provided with a water valve 130, and the water bath 50 is provided with a heating module, which ensures that the hot water in the water bath 50 can reliably heat the paint.

[0025] In a specific implementation, it also includes a control panel 110, a temperature sensor is arranged in the large buffer tank 30, a liquid level meter is inserted in the inner cavity of the paint barrel 10 near the discharge port 11, the temperature sensor is connected to the control panel 110, the liquid level meter is externally connected to the control panel 110, and the control panel 110 controls the connection of the booster pump 80, the drainage pump 100, the water valve 130, and the lifting cylinder 23;

[0026] The temperature sensor senses the temperature of the paint in the large buffer tank 30. When the temperature of the paint is too low, the drainage pump 100 is turned on to inject low-temperature hot water into the water bath 50. At the same time, the water valve 130 is opened to inject high-temperature hot water into the hollow layer 31 until the paint temperature reaches a suitable temperature range. When the liquid level meter senses the liquid level transition, the control panel 110 controls the lifting cylinder 23 to operate, so that the corresponding discharge port 11 of the upper support plate 22 tilts downward, and then the discharge port 11 supplies paint to the inner cavity of the large buffer tank 30 through the first supply hose 60;

[0027] The reference height of the upper support plate 22 of the movable base 20 is higher than the top of the large buffer tank 30 , ensuring that the paint barrel 10 can reliably input paint into the large buffer tank 30 without external power.

[0028] In specific implementation, a raised base 120 is provided at the bottom of the large buffer tank 30, which makes the pipelines of the first supply hose 60 and the second supply hose 70 used in the entire feeding device relatively short, thereby improving the transportation time of the paint from the paint barrel 10 to the inner cavity of the small buffer tank 40.

[0029] In specific implementation, the upper surface of the upper support plate 22 is a wear-resistant layer with high friction, and the maximum inclination angle of the end face of the upper support plate 22 corresponding to the discharge port 11 is 5°, which ensures that when the lifting cylinder 23 is in operation, the paint barrel 10 cannot be displaced or moved due to friction.

[0030] In a specific implementation, the height of the movable base 20 is 80 cm and the width is 150 cm, the height of the raised base 120 is 50 cm, and the material of the paint pipe 90 is stainless steel.

[0031] Its working principle is as follows: take out the paint barrel from the oven, place it on the upper support plate of the movable base, and flow to the inner cavity of the large buffer tank through the first feed hose. The water bath heats the large buffer tank in a water bath. The paint in the large buffer tank flows into the booster pump through the second feed hose 2. By controlling the flow rate of the booster pump, the paint is sent to the small buffer tank along the paint pipeline. The paint in the small buffer tube is then connected to the drawing tower die base through a pipeline. When the liquid level of the paint barrel is lower than the set value, the control panel adjusts the inclination of the upper support plate by driving the lifting cylinder, so that the paint continues to be fed to the large buffer tank; it ensures the temperature of the outflowing paint, reduces the occurrence of optical fiber coating defects, improves the qualified rate of preform rods, and reduces production costs.

[0032] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A feeding device for optical fiber drawing, characterized in that: It includes: The movable base comprises a bottom seat body and an upper supporting plate, wherein a lifting cylinder and a rotating shaft are arranged in the bottom seat body, a lower convex pivot seat is arranged in the middle of the length direction of the upper supporting plate, the lower convex pivot seat is connected to the rotating shaft, and the upper piston end of the lifting cylinder is pivotally connected to the lower surface of one end of the upper supporting plate in the length direction; A large buffer tank is a hollow double-walled tank, the hollow layer of the large buffer tank is externally connected to a water bath, the water bath is used to pour hot water into the hollow layer of the large buffer tank, and the inner cavity of the large buffer tank is used to place paint; and a small buffer tank, in which the coating is placed in the tank cavity of the tank body; A paint barrel body is placed on the upper surface of the upper support plate of the movable base, and a discharge port is arranged on one side of the bottom of the paint barrel body. The discharge port is arranged toward the large buffer tank, and the discharge port is connected to the tank body of the large buffer tank through a first supply hose. The large buffer tank is also equipped with a second supply hose, and the second supply hose is externally connected to the inlet of a booster pump. The outlet of the booster pump is connected to the inner cavity of the small buffer tank through a paint pipeline. The small buffer tank is used to be connected to the drawing tower die base through a pipeline.

2. The feeding device for optical fiber drawing according to claim 1, characterized in that: The water bath is located above the large buffer tank, the water outlet of the water bath is connected to the upper area of ​​the hollow layer through a first pipeline, the water return port of the water bath is connected to the bottom of the hollow layer through a second pipeline, a drainage pump is provided on the second pipeline, a water valve is provided on the first pipeline, and a heating module is provided in the water bath.

3. The feeding device for optical fiber drawing according to claim 2, characterized in that: It also includes a control panel, a temperature sensor is arranged in the large buffer tank, a liquid level meter is inserted in the inner cavity of the paint barrel near the discharge port, the temperature sensor is connected to the control panel, the liquid level meter is externally connected to the control panel, and the control panel controls the connection of the boost pump, the drainage pump, the water valve, and the lifting cylinder.

4. The feeding device for optical fiber drawing according to claim 3, characterized in that: The temperature sensor senses the temperature of the paint in the large buffer tank. When the temperature of the paint is too low, the drainage pump is turned on to inject low-temperature hot water into the water bath. At the same time, the water valve is opened to inject high-temperature hot water into the hollow layer until the paint temperature reaches a suitable temperature range. When the liquid level meter senses the liquid level transition, the control panel controls the lifting cylinder to move, so that the corresponding discharge port of the upper support plate tilts downward, and then the discharge port supplies paint to the inner cavity of the large buffer tank through the first supply hose.

5. The feeding device for optical fiber drawing according to claim 1, characterized in that: The reference height of the upper support plate of the movable base is higher than the top of the large buffer tank.

6. The feeding device for optical fiber drawing according to claim 1, characterized in that: The bottom of the large buffer tank is provided with a raised base, which makes the pipelines of the first feeding hose and the second feeding hose used in the entire feeding device relatively short.

7. The feeding device for optical fiber drawing according to claim 1, characterized in that: The upper surface of the upper support plate is a wear-resistant layer with high friction, and the maximum inclination angle of the end surface of the upper support plate corresponding to the discharge port is 5°.

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