CN112162536A - Feeding system and feeding method thereof - Google Patents
Feeding system and feeding method thereof Download PDFInfo
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- CN112162536A CN112162536A CN202011040074.XA CN202011040074A CN112162536A CN 112162536 A CN112162536 A CN 112162536A CN 202011040074 A CN202011040074 A CN 202011040074A CN 112162536 A CN112162536 A CN 112162536A
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- 238000000034 method Methods 0.000 title claims description 20
- 239000003973 paint Substances 0.000 claims abstract description 360
- 238000000576 coating method Methods 0.000 claims abstract description 117
- 239000011248 coating agent Substances 0.000 claims abstract description 111
- 239000000463 material Substances 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims description 95
- 238000005303 weighing Methods 0.000 claims description 15
- 239000013307 optical fiber Substances 0.000 description 24
- 239000007789 gas Substances 0.000 description 19
- 238000010438 heat treatment Methods 0.000 description 6
- 238000012681 fiber drawing Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000007380 fibre production Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/41875—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by quality surveillance of production
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/32—Operator till task planning
- G05B2219/32368—Quality control
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- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Coating Apparatus (AREA)
Abstract
A feeding system comprises a third paint tank, a third feed pipe arranged on the third paint tank, wherein the inlet end of the third feed pipe extends into the third paint tank, the outlet end of the third feed pipe is communicated with a coating die holder, the feeding system further comprises a second paint tank, a first paint tank, a second feed pipe for connecting the second paint tank with the third paint tank and a first feed pipe for connecting the first paint tank with the second paint tank, the inlet end of the second feed pipe extends into the second paint tank, the outlet end of the second feed pipe extends into the third paint tank, the inlet end of the first feed pipe is communicated with the first paint tank, and the outlet end of the first feed pipe extends into the second paint tank. The pneumatic diaphragm pump supplies materials to the second coating tank, the third coating tank and the coating die holder, replaces the traditional manual feeding, reduces the feeding cost and improves the feeding efficiency.
Description
Technical Field
The invention relates to the technical field of optical fiber drawing, in particular to a feeding system and a feeding method.
Background
The optical fiber coating process is a key link in optical fiber production, namely, in the process of drawing an optical fiber preform, a resin coating is coated on the surface of a bare optical fiber to protect and improve the performances of attenuation, machinery and the like of the optical fiber. The reason is that when the optical fiber preform is drawn into a bare optical fiber, a large number of micro-cracks exist on the surface of the optical fiber preform, and if the optical fiber preform is directly exposed in the air without coating, on one hand, the defects on the surface of the bare optical fiber are enlarged, and the local stress concentration is caused, so that the mechanical strength of the optical fiber is extremely low, and on the other hand, moisture and dust particles in the external environment erode the optical fiber, so that the loss of the optical fiber is. The supply of coating material in the optical fiber coating process is the core of the coating process, and has a crucial influence on the production efficiency and cost saving of the optical fiber.
However, in the prior art, the coating material is supplied to the optical fiber coating process mainly by pressing the coating material in the large coating material tank into the small coating material tank (i.e. the coating material tank configured in the drawing tower), and if the large coating material tank is abnormally supplied during the drawing process, the small coating material tank cannot obtain enough coating material, so that the drawing production is seriously lost in the case of high-speed drawing (the drawing speed is larger than 2400 m/min), the production efficiency is influenced, and the drawing cannot be smoothly carried out.
Therefore, a new technical solution is needed to solve the above technical problems.
Disclosure of Invention
The invention provides a feeding system, which comprises a third paint tank, a third feeding pipe arranged on the third paint tank, wherein the inlet end of the third feeding pipe extends into the third paint tank, the outlet end of the third feeding pipe is communicated with a coating die holder, the feeding system also comprises a second paint tank, a first paint tank, a second feeding pipe connecting the second paint tank and the third paint tank, and a first feeding pipe connecting the first paint tank and the second paint tank, the inlet end of the second feeding pipe extends into the second paint tank, the outlet end of the second feeding pipe extends into the third paint tank, the inlet end of the first feeding pipe is communicated with the first paint tank, the outlet end of the first feeding pipe extends into the second paint tank, and the feeding system feeds the paint into the second paint tank, the third paint tank and the third paint tank through a pneumatic diaphragm pump, The interior feed of coating die holder replaces traditional artifical material loading, reduces the feed cost, improves feed efficiency.
In order to solve the technical problems, the invention adopts the following technical scheme:
a feeding system comprises a third paint tank, a third feed pipe arranged on the third paint tank, wherein the inlet end of the third feed pipe extends into the third paint tank, the outlet end of the third feed pipe is communicated with a coating die holder, the feeding system further comprises a second paint tank, a first paint tank, a second feed pipe for connecting the second paint tank with the third paint tank and a first feed pipe for connecting the first paint tank with the second paint tank, the inlet end of the second feed pipe extends into the second paint tank, the outlet end of the second feed pipe extends into the third paint tank, the inlet end of the first feed pipe is communicated with the first paint tank, and the outlet end of the first feed pipe extends into the second paint tank.
Preferably, the outlet end of the first feed pipe is L-shaped and the outlet is opposite to the side of the inner cavity of the second paint tank, and/or the outlet end of the second feed pipe is L-shaped and the outlet is opposite to the side of the inner cavity of the third paint tank.
Preferably, the first feeding pipe is provided with a pneumatic diaphragm pump, a bubble detector and a first pneumatic valve, the feeding system further comprises a third air supply pipe, a fourth air supply pipe and a third input valve, an outlet end of the third air supply pipe is communicated with the pneumatic diaphragm pump, an inlet end of the third air supply pipe is communicated with the third input valve, and the third air supply pipe is provided with a third electromagnetic valve.
Preferably, the feeding system further comprises a first air supply pipe, an outlet end of the first air supply pipe extends into the second paint tank, and the first air supply pipe is provided with a first input valve, a first proportional valve and a first electromagnetic valve.
Preferably, the feeding system further comprises a second air supply pipe, an outlet end of the second air supply pipe extends into the third paint tank, and a second input valve, a second proportional valve and a second electromagnetic valve are arranged on the second air supply pipe.
Preferably, the feeding system further comprises a material return pipe, an inlet end of the material return pipe is communicated with the first feeding pipe and is located between the bubble detector and the first pneumatic valve, an outlet end of the material return pipe is communicated with the first coating tank, the material return pipe is provided with a fourth pneumatic valve, an outlet end of the fourth air supply pipe is communicated with the fourth pneumatic valve, an inlet end of the fourth air supply pipe is communicated with the third input valve, and the fourth air supply pipe is provided with a fourth solenoid valve.
Preferably, the second coating tank is provided with a first liquid level sensor and a second liquid level sensor which extend into the second coating tank, the third coating tank is provided with a third liquid level sensor and a fourth liquid level sensor which extend into the third coating tank, and a weighing piece is arranged below the first coating tank.
A feeding method using the feeding system, the feeding method comprising the steps of:
the method comprises the following steps: when the coating liquid level in a third coating tank is larger than a first preset value, controlling the coating in the third coating tank to be supplied to the coating die holder through a third supply pipe;
step two: when the paint liquid level in the third paint tank is lower than a second preset value, controlling the paint in the second paint tank to be supplied into the third paint tank through a second supply pipe;
step three: and when the coating liquid level in the second coating tank is less than a fourth preset value, controlling the coating in the first coating tank to be supplied into the second coating tank through the first supply pipe.
Preferably, after controlling the paint in the second paint tank to be supplied into the third paint tank through the second supply pipe when the paint level in the third paint tank is less than a second preset value, the method further includes:
and when the coating liquid level in the second coating tank is greater than the third preset value, controlling the coating in the first coating tank to be supplied to the second coating tank through the first supply pipe.
Preferably, after controlling the paint in the first paint tank to be supplied into the second paint tank through the first supply pipe when the paint level in the second paint tank is less than a fourth preset value, the method further includes:
and when the paint liquid level in the first paint tank is less than a sixth preset value, replenishing the paint in the first paint tank.
After the technical scheme is adopted, the invention has the following advantages:
the first coating tank used by the feeding system is a purchased ton-grade coating storage tank, and the materials are fed into the second coating tank, the third coating tank and the coating die holder through the pneumatic diaphragm pump, so that the traditional manual feeding is replaced, the feeding cost is reduced, and the feeding efficiency is improved; secondly, a bubble detector and a material return pipe are arranged on a first feeding pipe between the first coating tank and the second coating tank, so that bubbles in a pipeline can timely flow back to avoid the supply of abnormal coatings; the outlet end of the first feeding pipe and the outlet end of the second feeding pipe are L-shaped, and the outlets of the first feeding pipe and the second feeding pipe are respectively aligned to the side surfaces of inner cavities of the second coating tank and the third coating tank, so that coating liquid is fed by adhering to the inner walls of the second coating tank and the third coating tank, small bubbles in a pipeline and the coating tank are eliminated under the action of liquid level tension, stable feeding is achieved, and the problem that the quality of an optical fiber is seriously influenced because bubbles are easily generated in the coating during coating is effectively solved; the pneumatic diaphragm pump feeding design is adopted, so that feeding is stable in the optical fiber drawing and coating process, and the feeding is particularly ensured to be uninterrupted; secondly, the first coating tank, the second coating tank, the third coating tank, the first feeding pipe, the second feeding pipe, the third feeding pipe, the pneumatic diaphragm pump and the like adopt a design of wrapping heating resistance wires for heating and heat preservation, so that the defects of uneven temperature and high energy consumption of the traditional water bath type integral heating are avoided; finally, the resin coating single-wire feeding system also fully considers the advantages of multi-wire feeding during design, and can be used for feeding a plurality of optical fiber drawing production lines after the third feeding pipe is provided with a reserved interface, so that the double-wire and three-wire feeding of the optical fiber drawing coating is realized.
Drawings
The following further describes embodiments of the feed system of the present invention with reference to the accompanying drawings:
FIG. 1 is a schematic structural view of a feeding system according to the present invention;
FIG. 2 is an enlarged fragmentary view of a second paint can of the feed system of FIG. 1;
FIG. 3 is an enlarged fragmentary view of a third paint can of the feed system of FIG. 1;
FIG. 4 is a flow chart of a first embodiment of the feeding method of the present invention;
FIG. 5 is a flow chart of a second embodiment of the feeding method of the present invention;
FIG. 6 is a flow chart of a third embodiment of the feeding method of the present invention.
Detailed Description
As shown in fig. 1 to 3, the supply system of the present invention includes a first paint tank 1, a second paint tank 2, a third paint tank 3, a coating die holder 103, a first supply pipe 4 connecting the first paint tank 1 and the second paint tank 2, a second supply pipe 5 connecting the second paint tank 2 and the third paint tank 3, and a third supply pipe 6 connecting the third paint tank 3 and the coating die holder 103.
As shown in fig. 1, the first paint tank 1 is inclined, paint is placed in the first paint tank 1, and a support frame 11 and a weighing member 12 provided on the support frame 11 are provided below the first paint tank 1. The first paint tank 1 is placed on the holder 11, and the upper surface of the holder 11 is inclined, so that the inclination of the first paint tank 1 can be maintained, and the paint inside the first paint tank can be discharged through the first supply pipe 4. The weighing member 12 is disposed on the supporting frame 11, the weighing member 12 may be a weighing sensor or an electronic scale, or may be other weighing members, and belongs to the prior art, and therefore, the description is omitted here, and the weighing member 12 may be configured to weigh the weight of the paint in the first paint tank 1, so as to timely and real-timely obtain the amount of the paint in the first paint tank 1, and further determine the liquid level of the paint in the first paint tank 1.
As shown in fig. 1 and 2, the second paint tank 2 can contain paint, and the second paint tank 2 is provided with a first liquid level sensor 21, a second liquid level sensor 22, and a first cover plate 23 disposed above the first liquid level sensor 21 and the second liquid level sensor 22. The first cover plate 23 covers the upper end opening of the second paint can 2 to block the upper end opening of the second paint can 2. The lower extreme of first level sensor 21 stretches into in the second scribbles the material jar 2, and the lower extreme of first level sensor 21 is close to the bottom surface of second scribble material jar 2 inner chamber, preferentially, first level sensor 21 runs through the upper and lower surface of first apron 23 and rather than fixed connection, first level sensor 21 is used for detecting the low liquid level early warning in the second scribble material jar 2, promptly when the liquid level in the second scribble material jar 2 is lower and reach the default, it can send corresponding signal to supply paint in the second scribble material jar 2. The lower end of the second liquid level sensor 22 extends into the second paint tank 2, the lower end of the second liquid level sensor 22 is far away from the bottom surface of the inner cavity of the second paint tank 2, preferably, the second liquid level sensor 22 penetrates through the upper surface and the lower surface of the first cover plate 23 and is fixedly connected with the upper surface and the lower surface, so that the second liquid level sensor 22 is fixed, the second liquid level sensor 22 is used for detecting high liquid level early warning in the second paint tank 2, namely, when the liquid level in the second paint tank 2 is high and reaches a preset value, the second liquid level sensor can send a corresponding signal, so that paint in the second paint tank 2 is transmitted into the third paint tank 3. The first cover plate 23 is provided at the upper end opening of the second paint can 2 and covers the upper end opening of the second paint can 2.
As shown in fig. 1 and 3, the third paint tank 3 can contain paint, and the third paint tank 3 is provided with a third level sensor 31, a fourth level sensor 32, and a second cover plate 33. The second cover plate 33 is provided at the upper end opening of the third paint tank 3 and can cover the upper end opening of the third paint tank 3. The lower extreme of third level sensor 31 stretches into in the third scribbles the jar 3, and the lower extreme of third level sensor 31 is close to the bottom surface of third scribble the jar 3 inner chamber of material, third level sensor 31 is used for the low liquid level warning effect of third scribble jar 3, and when the liquid level in the third scribble jar 3 was lower and reached the default, it can signal to can control the interior coating that supplies of third scribbling jar 3, preferably, third level sensor 31 runs through the upper and lower surface of second apron 33 and rather than fixed connection, thereby plays the fixed action to it. The lower end of the fourth liquid level sensor 32 extends into the third paint tank 3, the lower end of the fourth liquid level sensor 32 is far away from the bottom surface of the inner cavity of the third paint tank 3, the fourth liquid level sensor 32 is used for detecting the high liquid level in the third paint tank 3, and when the liquid level in the third paint tank 3 is high and reaches a preset value, the fourth liquid level sensor 32 can send a signal so as to transmit the paint in the third paint tank 3.
As shown in fig. 1 to 3, the inlet end of the first feeding pipe 4 extends into the first paint tank 1 and contacts with the paint inside the first feeding pipe 4, so as to transport the paint in the first paint tank 1 into the first feeding pipe 4, the outlet end 44 of the first feeding pipe 4 is accommodated in the second paint tank 2, the outlet end 44 is L-shaped, and the outlet is aligned with the side of the inner cavity of the second paint tank 2, so that the paint liquid is fed against the inner wall of the paint, small air bubbles in the first feeding pipe 4 and the second paint tank 2 are eliminated under the action of liquid level tension, and smooth feeding is achieved, which effectively solves the problem that air bubbles are easily generated in the paint during coating and the quality of the optical fiber is seriously affected, and preferably, the outlet end 44 penetrates through the upper and lower surfaces of the first cover plate 23 and is fixedly connected with the first cover plate, so as to play a role in fixing the outlet end 44. The first feeding pipe 4 is provided with a pneumatic diaphragm pump 41, a bubble detector 42 and a first pneumatic valve 43. The pneumatic diaphragm pump 41, the bubble detector 42, and the first pneumatic valve 43 belong to a commercially available pneumatic diaphragm pump, a bubble detector, a pneumatic valve, etc., and they belong to the prior art, and therefore no further description is given here, the pneumatic diaphragm pump 41 can draw the paint in the first paint tank 1 into the first feed pipe 4, the bubble detector 42 can detect bubbles in the first feed pipe 4, and the first pneumatic valve 42 can drive the paint in the first feed pipe 4 into the second paint tank 2.
As shown in fig. 1 to 3, the inlet of the second feeding pipe 5 extends into the second paint tank 2 and contacts with the paint in the second paint tank 2 to feed the paint in the second paint tank 2 into the second feeding pipe 5, and preferably, the inlet end of the second feeding pipe 5 penetrates through the upper and lower surfaces of the first cover plate 23 and is fixedly connected thereto to fix the inlet end of the second feeding pipe 5. The outlet end 52 of the second feeding pipe 5 extends into the third coating tank 3, the outlet end 52 is L-shaped, the outlet is right opposite to the side surface of the inner cavity of the third coating tank 3, so that the coating liquid is fed against the inner wall of the coating, small bubbles in the first feeding pipe 4 and the second coating tank 2 are eliminated under the action of liquid level tension, stable feeding is achieved, the problem that bubbles are easily generated in the coating during coating and the quality of an optical fiber is seriously affected is effectively solved, and the outlet end 52 penetrates through the upper surface and the lower surface of the second cover plate 33 and is fixedly connected with the upper surface and the lower surface of the second cover plate, so that the outlet end 52 plays a role of fixed support. The second feeding pipe 5 is provided with a second pneumatic valve 51, the second pneumatic valve 51 is a commercially available pneumatic valve, which belongs to the prior art, and therefore, the description is omitted here, and the second pneumatic valve 51 can draw the paint in the second paint tank 2 into the second feeding pipe 5 and then convey the paint to the third paint tank 3.
As shown in fig. 1 to 3, the inlet end of the third supply pipe 6 extends into the third paint tank 3 and contacts the paint in the third paint tank 3 to draw the paint in the third paint tank 3 into the third supply pipe 6, and the outlet end of the third supply pipe 6 communicates with the coating die holder 103 to deliver the paint to the coating die holder 103. The third feeding pipe 6 is provided with a third pneumatic valve 61, the third pneumatic valve 61 is a commercially available pneumatic valve, which belongs to the prior art, and therefore, the description is omitted here, and the third pneumatic valve 61 can draw the paint in the third paint can 3 into the third feeding pipe 6 and then feed the paint to the coating die holder 103.
As shown in fig. 1 to 3, the feeding system further includes a feed back pipe 7, an inlet end of the feed back pipe 7 is communicated with the first feeding pipe 4 and is located between the bubble detector 42 and the first pneumatic valve 43, so that the bubble detector 42 can enter the feed back pipe 7 after detecting the bubble, and an outlet end of the feed back pipe 7 extends into the first paint tank 1 to re-feed the bubble-containing paint to the first paint tank 1. The feed back pipe 7 is provided with a fourth pneumatic valve 71, and the fourth pneumatic valve 71 can draw the paint in the bubbles in the first feed pipe 4 into the feed back pipe 7 and then convey the paint to the first paint tank 1.
As shown in fig. 1 to 3, the supply system further includes a first air supply pipe 8 provided on the second paint tank 2 and a second air supply pipe 9 provided on the third paint tank 3. One end of the first air supply pipe 8 extends into the second paint tank 2 so as to input clean air into the second paint tank 2, the clean air is one of purified nitrogen or compressed air subjected to water removal and dust removal, the other end of the first air supply pipe 8 is connected with an air source or an air tank so as to draw in clean air, the first air supply pipe 8 is provided with a first input valve 81, a first proportional valve 82 and a first electromagnetic valve 83, the first input valve 81, the first proportional valve 82 and the first electromagnetic valve 83 are valves, proportional valves and electromagnetic valves which are common in the market, which belong to the prior art, so that description is omitted herein, when the first input valve 81, the first proportional valve 82 and the first electromagnetic valve 83 are opened, the clean air can be input into the second paint tank 2 through the first air supply pipe 8 so as to extrude the paint in the second paint tank 2 into the second supply pipe 5, and then to the third paint tank 3, preferably, the first air supply pipe 8 penetrates the upper and lower surfaces of the first cover plate 23 and is fixedly connected with the first cover plate, so as to fixedly support the first air supply pipe 8. One end of the second air supply pipe 9 extends into the third paint tank 3 so as to input clean air into the third paint tank 3, preferably, the second air supply pipe 9 penetrates through the upper and lower surfaces of the second cover plate 33 and is fixedly connected therewith so as to support and fix the second air supply pipe 9, the second air supply pipe 9 is provided with a second input valve 91, a second proportional valve 92 and a second electromagnetic valve 93, the second input valve 91, the second proportional valve 92 and the second electromagnetic valve 93 are valves, proportional valves, electromagnetic valves and the like which are commonly found in the market, which belong to the prior art, and therefore, the description is omitted herein, the other end of the second air supply pipe 9 is connected with an air tank or an air source so as to input clean air into the second air supply pipe 9, when the second input valve 91, the second proportional valve 92 and the second electromagnetic valve 93 are opened, a gas source or a clean gas in a gas tank may be introduced into the third paint tank 3 through the second gas supply pipe 9 to increase the gas pressure in the third paint tank 3 so that the paint in the third paint tank 3 is supplied to the coating die base 103 through the third supply pipe 6.
As shown in fig. 1 to 3, the feed system further comprises a third gas supply pipe 100 and a fourth gas supply pipe 101. The air outlet end of the third air supply pipe 100 is connected to the pneumatic diaphragm pump 41 so as to inflate and pressurize the pneumatic diaphragm pump 41, so that the pneumatic diaphragm pump 41 can pump the paint in the first paint tank 1 into the first feed pipe 4, the third air supply pipe 100 is provided with a third electromagnetic valve 1001, the third electromagnetic valve 1001 can control the flow and the on-off of the air in the third air supply pipe 100, the air inlet end of the third air supply pipe 100 is connected to a third input valve 102, and the third input valve 102 is connected to an air source or an air tank so as to control the clean air to enter the third air supply pipe 100. The gas outlet end of the fourth gas supply pipe 101 is connected to the fourth pneumatic valve 71 so as to supply gas and pressurize the fourth gas supply pipe, so that the fourth gas supply pipe can work normally, the other end of the fourth gas supply pipe 101 is connected to the third input valve 102 so that clean gas can also enter the fourth gas supply pipe 101, and the fourth gas supply pipe 101 is provided with a fourth solenoid valve 1011 for controlling the flow and the on-off of gas in the fourth gas supply pipe 101.
The first proportional valve 82, the first electromagnetic valve 83, the second proportional valve 92, and the second electromagnetic valve described above are used to adjust the pressure in the second paint tank 2 or the third paint tank 3 in order to stabilize the intake air and stop the intake air in time. Above-mentioned first coating tank 1, second coating tank 2, third coating tank 3, first feed pipe 4, second feed pipe 5, third feed pipe 8, feed back pipe 7, pneumatic diaphragm pump 41, bubble detector 42 outside all wraps up the heating resistor silk, so that heat preservation to it, prevent the coating solidification, make the flow that coating wherein can be stable, the temperature that has avoided traditional water bath formula integral heating is inhomogeneous, the shortcoming that the energy consumption is high, parcel heating resistor silk is prior art, the event is no longer repeated here. And a plurality of outlets can be arranged or communicated at the discharge end of the third feeding pipe 6, so that a plurality of coating die holders 103 can be fed, and the feeding efficiency is improved.
The feeding system further comprises a controller (not shown) electrically connected to the pneumatic diaphragm pump 41, the weighing member 12, the first liquid level sensor 21, the second liquid level sensor 22, the third liquid level sensor 31, the fourth liquid level sensor 32, the first pneumatic valve 43, the second pneumatic valve 51, the third pneumatic valve 61, the fourth pneumatic valve 71, the first input valve 81, the first proportional valve 82, the first solenoid valve 83, the second input valve 91, the second proportional valve 92, the second solenoid valve 93, the third solenoid valve 1001, the fourth solenoid valve 1011, and the third input valve 102 so as to control the opening or closing thereof.
As shown in fig. 1 to 3, when the feeding system of the present invention is used, the third input valve 102 is first opened to allow clean air in the air source or the air tank to enter the third input valve 102, then the third electromagnetic valve 1001 and the fourth electromagnetic valve 1011 are opened, then the air enters the third air supply pipe 100 and the fourth air supply pipe 101, then the air is supplied and pressurized to the air diaphragm pump 41 and the fourth air valve 71, then the controller controls the air diaphragm pump 41 to start working, and the paint in the first paint tank 1 is pumped into the first feed pipe 4, then the air bubble detector 42 detects that the paint contains air bubbles, at this time, the fourth air valve 71 can pump the paint with air bubbles into the return pipe 7 from the first feed pipe 4, and then the paint flows back into the first paint tank 1, so that the paint entering the second paint tank 2 does not contain air bubbles, the first pneumatic valve 43 can convey the coating in the first feeding pipe 4 to the second coating tank 2, and the outlet end 44 of the first feeding pipe 4 is L-shaped, and the outlet of the outlet end 44 is right opposite to the side surface of the inner cavity of the second coating tank 2, so that the coating liquid is fed to the inner wall of the coating, small bubbles in the first feeding pipe 4 and the second coating tank 2 are eliminated under the action of liquid level tension, stable feeding is achieved, and the problem that the quality of an optical fiber is seriously affected due to easy generation of bubbles in the coating when coating is effectively solved. The weighing member 12 is used for weighing the weight of the paint in the first paint tank 1 so as to determine the height of the liquid level of the paint, when the weight of the paint weighed by the weighing member 12 is lower and reaches a critical value, it is determined that the liquid level in the first paint tank 1 is lower at the moment, the weighing member 12 transmits data to the controller, and after the controller determines that the liquid level is lower, the controller controls the third input valve 102, the third electromagnetic valve 1001 and the fourth electromagnetic valve 1011 to be closed, and stops supplying air to the pneumatic diaphragm pump 41 and the fourth pneumatic valve 71 respectively, and then replaces the first paint tank 1 or pours the paint into the first paint tank 1 so as to increase the height of the liquid level of the paint in the first paint tank 1. In order to feed the paint supplied into the second paint tank 2 into the third paint tank 3 through the second feed pipe 5, the controller opens the first input valve 81, the first proportional valve 82, and the first solenoid valve 83, so that the clean air is fed into the second paint tank 2 through the first air supply pipe 8, so that the air pressure in the second paint tank 2 is increased to squeeze the paint in the second paint tank 2, so that the paint is fed into the second feed pipe 5, and then the controller opens the second air-operated valve 51, so that the paint is smoothly fed into the third paint tank 3 through the second feed pipe 5, so that the liquid level of the paint in the third paint tank 3 is increased. In order to feed the paint in the third paint tank 3 to the coating die holder 103, the controller opens the second input valve 91, the second proportional valve 92 and the second electromagnetic valve 93, so that the clean gas enters the third paint tank 3 through the second feed pipe 9, the air pressure in the third paint tank 3 is increased, the paint in the third paint tank 3 enters the third feed pipe 6, and then the controller opens the third pneumatic valve 61, so that the paint in the third feed pipe 6 can be fed to the coating die holder 103, thereby achieving the purpose of feeding. During the feeding process, the first liquid level sensor 21 and the second liquid level sensor 22 are respectively used for detecting the high and low liquid levels in the first paint tank 2 and transmitting data to the controller, when the first liquid level sensor 21 detects that the paint liquid level in the second paint tank 2 is low and reaches a critical value, the controller controls the third input valve 102, the third electromagnetic valve 1001 and the fourth electromagnetic valve 1011 to respectively supply air and pressurize the pneumatic diaphragm pump 41 and the fourth pneumatic valve 71, so that the paint in the first paint tank 1 is conveyed into the second paint tank 2 through the first feed pipe 4, when the second liquid level sensor 22 detects that the paint liquid level in the second paint tank 2 is high and reaches a critical value, the controller transmits data to the controller, and after judging that the liquid levels are high, the controller controls the first input valve 81, the first proportional valve 82, the first electromagnetic valve 83, the second electromagnetic valve 83, The second air-operated valve 51 is opened so that clean air is fed into the second paint tank 2 through the first air-supply pipe 8, and then paint in the second paint tank 2 is fed into the third paint tank 3 through the second feed pipe 5. The third liquid level sensor 31 and the fourth liquid level sensor 32 are respectively used for detecting the level of the liquid in the third paint tank 3, and when the liquid level in the third paint tank 3 detected by the third liquid level sensor 31 is lower and reaches a critical value, the controller transmits data to the controller, when the controller judges that the liquid level in the third paint tank 3 is lower and reaches the critical value, the controller controls the first input valve 81, the first proportional valve 82, the first electromagnetic valve 83 and the second pneumatic valve 51 to be opened, so that the paint in the second paint tank 3 is transmitted into the third paint tank 3 through the second feed pipe 5, when the fourth liquid level sensor 32 detects that the liquid level in the third paint tank 3 is higher and reaches the critical value, the controller transmits data to the controller, the controller controls the second input valve 91, the second proportional valve 92, the second electromagnetic valve 93 and the third pneumatic valve 61 to be opened, so that the paint in the third paint tank 3 is fed onto the coating die holder 103 through the third feed pipe 5. The liquid level height in the first paint tank 1, the second paint tank 2 and the third paint tank 3 is detected in real time, so that continuous feeding can be realized. When the drawing is stopped or the fiber is broken, the first input valve 81, the second input valve 91, and the third input valve 102 in the on state are closed, and the paint input to the current supply pipe is disconnected. The use of the feed system of the invention has been described.
As shown in fig. 4 to 6, a feeding method using the above feeding system includes the steps of:
the method comprises the following steps: when the paint liquid level in the third paint tank 3 is greater than the first preset value, the paint in the third paint tank 3 is controlled to be supplied to the coating die holder through the third supply pipe.
When the paint liquid level in the third paint tank 3 is higher than the first preset value, it indicates that the paint in the third paint tank 3 is more and sufficient, and can be continuously supplied to the coating die holder, so that the controller controls the second input valve 91, the second proportional valve 92, the second electromagnetic valve 93, and the third pneumatic valve 61 to open at this time, so that the paint in the third paint tank 3 is supplied to the coating die holder 103 through the third supply pipe 5.
Step two: when the paint level in the third paint tank 3 is less than the second preset value, the paint in the second paint tank 2 is controlled to be supplied into the third paint tank 3 through the second feed pipe 5.
When the liquid level of the paint in the third paint tank 3 is smaller than the second preset value, and the second preset value is smaller than the first preset value, it indicates that the liquid level of the paint in the third paint tank 3 is lower and the paint is too little, and the paint needs to be timely supplied into the third paint tank 3, at this time, the third liquid level sensor 31 transmits the liquid level data to the controller, and after the controller determines that the liquid level is smaller than the second preset value, the controller controls the first input valve 81, the first proportional valve 82, the first electromagnetic valve 83, and the second pneumatic valve 51 to be opened, so that the paint in the second paint tank 3 is transmitted into the third paint tank 3 through the second supply pipe 5 until the liquid level in the third paint tank 3 is appropriate.
Step three: when the paint liquid level in the second paint tank 2 is greater than a third preset value, the paint in the second paint tank 2 is controlled to be supplied into the third paint tank 3 through the second feed pipe 5.
When the paint liquid level in the second paint tank 2 is higher than the third preset value, which indicates that the paint in the second paint tank 2 is higher at this time, the paint can be supplied into the third paint tank 3, then the second liquid level sensor 22 transmits the liquid level data to the controller, and after the controller determines that the liquid level is higher than the third preset value, the controller controls the first input valve 81, the first proportional valve 82, the first electromagnetic valve 83, and the second pneumatic valve 51 to be opened, so that the paint in the second paint tank 3 is transmitted into the third paint tank 3 through the second feed pipe 5.
Step four: when the paint liquid level in the second paint tank 2 is less than a fourth preset value, the paint in the first paint tank 1 is controlled to be supplied into the second paint tank 2 through the first feed pipe 4.
When the liquid level of the paint in the second paint tank 2 is smaller than the fourth preset value, and the fourth preset value is smaller than the third preset value, it indicates that the paint in the second paint tank 2 is too little and needs to be supplemented, after the first liquid level sensor 21 transmits data to the controller, the controller controls the third input valve 102, the third electromagnetic valve 1001, and the fourth electromagnetic valve 1011 to supply air and pressurize the pneumatic diaphragm pump 41 and the fourth pneumatic valve 71, respectively, so that the paint in the first paint tank 1 is conveyed into the second paint tank 2 through the first supply pipe 4, and simultaneously, the air bubbles can be removed.
Step five: when the paint liquid level in the first paint tank 1 is greater than a fifth preset value, the paint in the first paint tank 1 is controlled to be supplied into the second paint tank 2 through the first supply pipe.
When the liquid level of the paint in the first paint tank 1 is greater than the fifth preset value, it indicates that the paint in the first paint tank 1 is sufficient, then the weighing member 12 transmits data to the controller, and after the controller determines that the liquid level is greater than the fifth preset value, the controller controls the third input valve 102, the third electromagnetic valve 1001, and the fourth electromagnetic valve 1011 to supply air and pressurize the pneumatic diaphragm pump 41 and the fourth pneumatic valve 71, respectively, so that the paint in the first paint tank 1 is conveyed into the second paint tank 2 through the first supply pipe 4, and simultaneously, the bubble removing function can be achieved.
Step six: when the paint liquid level in the first paint tank 1 is less than the sixth preset value, the paint in the first paint tank 1 is replenished
When the liquid level of the paint in the first paint tank 1 is smaller than the sixth preset value, and the sixth preset value is smaller than the fifth preset value, it indicates that the paint in the first paint tank 1 is too little, at this time, the weighing member 12 transmits the liquid level data to the controller, and after the controller determines that the liquid level in the first paint tank 1 is smaller than the sixth preset value, the controller closes the third input valve 102, the third electromagnetic valve 1001, and the fourth electromagnetic valve 1011 at this time, stops supplying air to the pneumatic diaphragm pump 41 and the fourth pneumatic valve 71, and then prepares to replace the first paint tank 1 or supplement the paint into the first paint tank 1 until the liquid level in the first paint tank 1 reaches the required height.
The selection of the first preset value, the second preset value, the third preset value, the fourth preset value, the fifth preset value and the sixth preset value can be set as required, or a suitable specific numerical value can be obtained through a limited number of experiments, which belongs to the prior art, and therefore, the details are not repeated herein.
In the fifth and sixth steps, when there are bubbles in the paint in the first supply pipe 4, the control is performed to feed the paint with bubbles into the first paint tank 1 through the feed pipe 7.
When the paint in the first paint tank 1 is transferred into the second paint tank 2 through the first feed pipe 4, in order to remove air bubbles in the paint, after the air bubble detector 42 detects the presence of air bubbles in the paint in the first feed pipe 4, the paint with air bubbles in the first feed pipe 4 can be transferred into the first paint tank 1 through the return pipe 7 by the fourth air-operated valve 71 at this time.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A feeding system comprises a third paint tank, a third feeding pipe arranged on the third paint tank, wherein the inlet end of the third feeding pipe extends into the third paint tank, the outlet end of the third feeding pipe is communicated with a coating die holder, the feeding system is characterized by further comprising a second paint tank, a first paint tank, a second feeding pipe connected with the second paint tank and the third paint tank, and a first feeding pipe connected with the first paint tank and the second paint tank, the inlet end of the second feeding pipe extends into the second paint tank, the outlet end of the second feeding pipe extends into the third paint tank, the inlet end of the first feeding pipe is communicated with the first paint tank, and the outlet end of the first feeding pipe extends into the second paint tank.
2. The feed system of claim 1, wherein: the outlet end of the first feeding pipe is L-shaped and the outlet of the first feeding pipe is opposite to the side surface of the inner cavity of the second paint tank, and/or the outlet end of the second feeding pipe is L-shaped and the outlet of the second feeding pipe is opposite to the side surface of the inner cavity of the third paint tank.
3. The feed system of claim 2, wherein: set up pneumatic diaphragm pump, bubble detector, first pneumatic valve on the first feed pipe, feeding system still includes third air supply pipe, fourth air supply pipe, third input valve, the exit end of third air supply pipe with pneumatic diaphragm pump intercommunication, the entrance point and the third input valve intercommunication of third air supply pipe, set up the third solenoid valve on the third air supply pipe.
4. The feed system of claim 3, wherein: the feeding system further comprises a first air supply pipe, an outlet end of the first air supply pipe extends into the second paint tank, and a first input valve, a first proportional valve and a first electromagnetic valve are arranged on the first air supply pipe.
5. The feed system of claim 4, wherein: the feeding system further comprises a second air supply pipe, an outlet end of the second air supply pipe extends into the third paint tank, and a second input valve, a second proportional valve and a second electromagnetic valve are arranged on the second air supply pipe.
6. The feed system of claim 5, wherein: the feeding system further comprises a material return pipe, the inlet end of the material return pipe is communicated with the first feeding pipe and is located between the bubble detector and the first pneumatic valve, the outlet end of the material return pipe is communicated with the first coating tank, the material return pipe is provided with a fourth pneumatic valve, the outlet end of the fourth air supply pipe is communicated with the fourth pneumatic valve, the inlet end of the fourth air supply pipe is communicated with the third input valve, and the fourth air supply pipe is provided with a fourth electromagnetic valve.
7. The feed system of claim 6, wherein: set up on the second paint can and stretch into its inside first level sensor, second level sensor, set up on the third paint can and stretch into its inside third level sensor, fourth level sensor, first paint can below sets up the weighing piece.
8. A feeding method using a feeding system according to any of the preceding claims 1-7, characterized in that the feeding method comprises the steps of:
when the coating liquid level in a third coating tank is larger than a first preset value, controlling the coating in the third coating tank to be supplied to the coating die holder through a third supply pipe;
when the paint liquid level in the third paint tank is lower than a second preset value, controlling the paint in the second paint tank to be supplied into the third paint tank through a second supply pipe;
and when the coating liquid level in the second coating tank is less than a fourth preset value, controlling the coating in the first coating tank to be supplied into the second coating tank through the first supply pipe.
9. The method as claimed in claim 8, wherein said controlling the paint in the second paint tank to be supplied into the third paint tank through the second supply pipe when the paint level in the third paint tank is less than a second predetermined value further comprises:
and when the coating liquid level in the second coating tank is greater than a third preset value, controlling the coating in the first coating tank to be supplied to the second coating tank through the first supply pipe.
10. The method as claimed in claim 9, wherein said controlling the paint in the first paint tank to be supplied into the second paint tank through the first supply pipe when the paint level in the second paint tank is less than a fourth predetermined value further comprises: and when the paint liquid level in the first paint tank is less than a sixth preset value, replenishing the paint in the first paint tank.
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| CN202011040074.XA CN112162536A (en) | 2020-09-28 | 2020-09-28 | Feeding system and feeding method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011040074.XA CN112162536A (en) | 2020-09-28 | 2020-09-28 | Feeding system and feeding method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113894008A (en) * | 2021-06-18 | 2022-01-07 | 杭州金星通光纤科技有限公司 | Centralized feeding equipment for replacing 10KG coating bucket in optical fiber production |
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