CN208776584U - Optical fiber prefabricated rod mandrel depositing device automatic control system - Google Patents
Optical fiber prefabricated rod mandrel depositing device automatic control system Download PDFInfo
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- CN208776584U CN208776584U CN201821307862.9U CN201821307862U CN208776584U CN 208776584 U CN208776584 U CN 208776584U CN 201821307862 U CN201821307862 U CN 201821307862U CN 208776584 U CN208776584 U CN 208776584U
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Abstract
The utility model discloses a kind of optical fiber prefabricated rod mandrel depositing device automatic control systems, including plug sedimentation unit, raw material supply unit, detection unit and control unit；The plug sedimentation unit is used to complete the deposition of optical fiber prefabricated rod mandrel, including deposition chamber, lifting assembly and rotation sunpender；The raw material supply unit is used to provide deposition raw material, including SiCl to the plug sedimentation unit4Supply department and deposition blowlamp；The detection unit includes the diameter measurer of the pressure detector and real-time detection diameter of mandrel for pressure value in deposition chamber described in real-time detection；Described control unit includes PLC controller, and for receiving the pressure value and diameter of the pressure-detecting device, diameter measurer feedback, and adaptability adjusts the aperture of the air inlet and outlet and the injection flow of the deposition blowlamp.The automatic control system realizes the Automatic Control of optical fiber prefabricated rod mandrel deposition process, improves the product quality and performance of preform.
Description
Technical field
The utility model relates to a kind of optical fiber prefabricated rod mandrel depositing device automatic control systems.
Background technique
It is well known that optic fibre manufacture process is generally divided into two steps: preform production and drawing optical fibers.Preform
Production quality be drawing optical fibers basis, manufacturing process control be one of most important link in fiber manufacturing.At present
Preform manufacture craft technology the most mature has plug deposition and covering deposition.In preform production process,
Entire process flow is related to the coordination operation of temperature, flow, pressure, equipment etc., controls very cumbersome.
Existing fiber prefabricated rods are produced as mechanical manual operation and control can not be true when manual operation controls equipment
The timeliness and precision to each process (such as flow control, temperature control control, pressure control) control are protected, when flow control
When precision processed is inadequate, it is easy to cause a series of mass parameters such as shape, size, density of prefabricated rods abnormal, causes product yield
It is low, and influence plug or the stability of covering growth in deposition process；When pressure controling precision is inadequate, air-flow wave can be caused
Dynamic, disorder air-flow hampers reaction and generates but have neither part nor lot in the particle stabilized smoothly from exhaust pipe discharge of deposition, undischarged
If the excessive cavity inner wall that is attached to of particle forms mirror surface, it will lead to heat reflection, cause internal temperature to be gradually increasing, influence to sink
Product, and the particle on inner wall may be attached to the prefabricated rods surface in deposition since disorder air-flow peels off, and lead to properties of product
It is unstable.
Utility model content
In view of above the shortcomings of the prior art, it is heavy that the purpose of the utility model is to provide a kind of optical fiber prefabricated rod mandrels
Product equipment automatic control system, improves control precision, high degree of automation.
In order to solve the above technical problems, the technical solution adopted in the utility model is: providing a kind of optical fiber prefabricated rod mandrel
Depositing device automatic control system, including plug sedimentation unit, raw material supply unit, detection unit and control unit；Wherein,
Plug sedimentation unit: including deposition chamber, lifting assembly and rotation sunpender, the upper end of the rotation sunpender is connected to
On the lifting assembly, the rotation sunpender can rise or fall vertically with the lifting assembly, the downside of the rotation sunpender
It is placed in the deposition chamber, is connected with deposition target rod in the lower end of the rotation sunpender, is set in the side of the deposition chamber
There is air inlet, the opposite other side is equipped with air outlet；
Raw material supply unit: including SiCl4Supply department, N2Supply department, O2Supply department, H2Supply department and by pipeline with
The SiCl4Supply department, N2Supply department, O2Supply department and H2The deposition blowlamp of supply department's connection, the blowtorch mouth of the deposition blowlamp
Positioned at the deposition chamber inside and be arranged towards the deposition target rod, for the deposition target rod jet deposition raw material；
Detection unit: including the pressure detector being set on the deposition chamber inner wall and it is set to the deposition chamber side
Diameter measurer；The pressure detector is used for the intracorporal pressure value of deposit cavity described in real-time detection, and the pressure value is anti-
It is fed to described control unit, the diameter measurer is used for the diameter of real-time detection plug, and the diameter value is fed back to described
Control unit；
Control unit: including PLC controller, the input terminal of the PLC controller and the pressure detector, diameter measurer
Electrical connection, the output end of the PLC controller and the air inlet and outlet and SiCl4Supply department's electrical connection, the PLC control
Device processed is used to control the aperture of the air inlet and outlet according to the pressure value that the pressure detector is fed back and according to institute
The diameter value for stating diameter measurer feedback controls the injection flow of the deposition blowlamp.
As the improvement to above scheme, described control unit further includes and the PLC controller two-way communication link
Industrial personal computer can set the preset value of each operating parameter by the industrial personal computer to the PLC controller write-in program and input.
As the improvement to above scheme, described control unit further includes and the PLC controller two-way communication link
Touch display screen can show the operating parameter and unlatching, closing of the real-time plug deposition process by the touch display screen
The plug depositing device automatic control system.
As the improvement to above scheme, the lifting assembly includes lifting motor, upright guide rail and sliding block, the lifting
Sliding block described in motor driven rises or falls along the upright guide rail, and the upper end of the rotation sunpender is connected to institute by a cross bar
It states on sliding block, the lifting motor is electrically connected by the first servo-driver with the output end of the PLC controller.
As the improvement to above scheme, the rotation sunpender is driven by spindle motor to be rotated, and the spindle motor passes through
Second servo-driver is electrically connected with the output end of the PLC controller.
As the improvement to above scheme, the diameter measurer includes that upper and lower spaced first caliper and second are surveyed
Diameter device.
As the improvement to above scheme, the pressure detector is gas pressure sensor, first caliper, the
Two calipers are one of CCD camera or ultrasonic distance-measuring sensor.
As the improvement to above scheme, the first solenoid valve, the second electromagnetism are respectively arranged in the air inlet and outlet
Valve, the air inlet and outlet are connected by first solenoid valve, second solenoid valve with the output end of the PLC controller.
As the improvement to above scheme, the SiCl4Supply department passes through mass flow controller and the PLC controller
Output end be connected.
Optical fiber prefabricated rod mandrel depositing device automatic control system provided by the utility model, it is easy to operate, it realizes
The Automatic Control of optical fiber prefabricated rod mandrel deposition process, improves production efficiency, it is ensured that in plug depositing operation
Flow parameter, pressure parameter control timeliness and precision, and the detection of each parameter and be fed back to continuous real-time perfoming, feed back
Rapidly, reliably, feed particles deposition accuracy is high, and stability is strong for mechanism, improves the product quality and performance of preform, fits
For large-scale production.
Detailed description of the invention
Fig. 1 is the structural block diagram of optical fiber prefabricated rod mandrel depositing device automatic control system in the utility model embodiment；
Fig. 2 is the structural schematic diagram of plug sedimentation unit in the utility model embodiment.
The components in the drawings are labeled as follows: 100- deposits target rod；101- plug；10- plug sedimentation unit；11- deposition
Cavity；111- air inlet；The first solenoid valve of 1110-；112- air outlet；1120- second solenoid valve；121- lifting motor；122-
Upright guide rail；123- sliding block；124- cross bar；13- rotates sunpender；131- spindle motor；20- raw material supply unit；21-SiCl4
Supply department；210- mass flow controller；22- deposition blowlamp；30- detection unit；31- pressure detector；32- diameter measurer；
The first caliper of 321-；The second caliper of 322-；40- control unit；41-PLC controller；42- industrial personal computer；43- touches display
Screen；The first servo-driver of 51-；The second servo-driver of 52-；The first position A-；The second position B-.
Specific embodiment
In the description of the present invention, it should be understood that term " on ", "lower", "left", "right", "top", "bottom",
The orientation or positional relationship of the instructions such as "vertical", "horizontal" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the utility model and simplify description, rather than the device or element of indication or suggestion meaning there must be specific side
Position is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " first ",
" second " etc. is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicates indicated skill
The quantity of art feature.The feature for defining " first ", " second " etc. as a result, can explicitly or implicitly include one or more
Multiple this feature.In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can be directly connected, two elements can also be can be indirectly connected through an intermediary
Internal connection.For the ordinary skill in the art, it can understand that above-mentioned term is practical at this by concrete condition
Concrete meaning in novel.
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, to make the protection scope of the utility model apparent clear
Define.
The utility model provides a kind of optical fiber prefabricated rod mandrel depositing device automatic control system, referring to Fig. 1, Fig. 1
Show the structure of the automatic control system of optical fiber prefabricated rod mandrel depositing device described in the present embodiment, the optical fiber preform core
Stick depositing device automatic control system includes plug sedimentation unit 10, raw material supply unit 20, detection unit 30 and control unit
40。
Referring to Fig. 2, the plug sedimentation unit 10 is used to complete the deposition modeling of optical fiber prefabricated rod mandrel 101, Fig. 2 shows
The structure of the plug sedimentation unit 10 is gone out, the plug sedimentation unit 10 includes deposition chamber 11, lifting assembly and rotation
Sunpender 13.The upper end of the rotation sunpender 13 is connected on the lifting assembly, and the rotation sunpender 13 can be with the lifting group
Part rises or falls vertically, is placed in the deposition chamber 11 under the rotation sunpender 13, in the rotation sunpender 13
Lower end is connected with deposition target rod 100, and after opening the plug depositing device automatic control system, the rotation sunpender 13 drives institute
Deposition target rod 100 is stated to rotate, meanwhile, plug deposits deposits materials in the surface of the deposition target rod 100, the lifting assembly band
Move the rotation sunpender 13 and the deposition target rod 101 be gradually increasing, the plug 101 from top to bottom gradually deposition growing at
Type.In the initial state, the deposition target rod 100 is located at the A of first position, described during the plug 101 is molding
Deposition target rod 100 gradually rises vertically with the lifting assembly, the plug 101 gradually deposition growing from top to bottom, to described
After deposition target rod 100 rises the distance of entire finished product plug length, the plug 101 molding is completed, and the plug 101 is located at the
At two position B.
Further, the lifting assembly includes lifting motor 121, upright guide rail 122 and sliding block 123, the lifting electricity
Machine 121 drives the sliding block 123 to rise along the upright guide rail 122, to drive the rotation sunpender 13 and the deposition targets
Stick 100 rises, and the upper end of the rotation sunpender 13 is connected on the sliding block 123 by a cross bar 124, and the cross bar 124 is set
In the top of the deposition chamber 11.
It is equipped with air inlet 111 in the side of the deposition chamber 11, the opposite other side is equipped with air outlet 112, some
In embodiment, inlet duct can be connected in the air inlet 111, or connect extractor fan in the air outlet 112, made described
Certain pressure is maintained in deposition chamber 11, to form stable air-flow, it is ensured that do not deposit to deposition 100 surface of target rod
Feed particles can efficiently be discharged outside the cavity 11, and the chance for being attached to the feed particles on molded plug 101 is big
It is big to reduce, avoid the fluctuation of the growth rate and density of the plug 101, while can reduce non-deposited particles be attached to it is described
Probability on 11 inner wall of cavity can prevent the feed particles from peeling off from cavity inner wall and being attached to mandrel surface and form density
The uniformity of plug 101, and the injection feed particles that the deposition blowlamp 22 can be stable are improved in non-uniform region.It can manage
Solution, when hypotony in the deposition chamber 11, the feed particles for not depositing to deposition 100 surface of target rod can not be high
Effect is expelled to outside the cavity 11, when hypertonia in the deposition chamber 11, the original of the deposition blowlamp 22 ejected
Material particle easily deposits shakiness, flows out to outside the cavity 11 with air-flow, reduces the molding effect of the plug 101.This reality
It applies in example, the air inlet 111 is arranged on the left side wall of the deposition chamber, and the air outlet 112 is arranged in the deposition
On the right side wall of cavity 11, the optimal pressure range in the deposition chamber 11 is 50~75Pa.
The raw material supply unit 20, which is used to provide to the plug sedimentation unit 10, deposits raw material, in the present embodiment, institute
Stating deposition raw material includes SiCl4Gas, H2 、O2And N2, wherein the SiCl4The flame water under hot conditions (1000 DEG C or so)
Solution generates SiO2, the as deposition raw material of plug 101, H2For fuel, burn to provide the hot conditions, O2It is combustion-supporting
Agent plays combustion-supporting, N2As carrier gas, for delivering the SiCl4Gas, H2And O2。
Correspondingly, the raw material supply unit 20 includes SiCl4Supply department 21, N2Supply department, O2Supply department, H2Supply department
And pass through pipeline and the SiCl4Supply department 21, N2Supply department, O2Supply department, H2The deposition blowlamp 22 of supply department's connection, institute
State SiCl4Supply department 21, N2Supply department, O2Supply department, H2Supply department supplies SiCl to the deposition blowlamp 22 respectively4Gas, N2、
O2And H2, the SiCl4Flame hydrolysis generates SiO under the high temperature conditions2, the blowtorch mouth of the deposition blowlamp 22 is located at described heavy
The inside of product cavity 11 is simultaneously arranged, the SiO that flame hydrolysis generates towards the deposition target rod 1002Pass through the deposition blowlamp 22
Blowtorch mouth in the form of granules jet deposition to it is described deposition target rod 100 outer surface on mold the plug 101.Work as institute
Deposition target rod 100 is stated when be in the first position A, the blowtorch mouth of the deposition blowlamp 22 is towards the target rod 100 that deposits
Top.
The detection unit 30 includes the pressure-detecting device 31 on 11 inner wall of deposition chamber and is set to described
The diameter measurer 32 of 11 side of deposition chamber, the pressure-detecting device 31 is for the pressure in deposition chamber 11 described in real-time detection
Force value, and the pressure value is fed back into described control unit 40, the diameter measurer 32 is for plug 101 described in real-time detection
Forming diameter, and the diameter value is fed back into described control unit 40.
Described control unit 40 includes PLC controller 41, and the input terminal of the PLC controller 41 and the pressure detecting fill
Set the electrical connection of 31, diameter measurer 32, the output end of the PLC controller 41 and the air inlet 111, air outlet 112 and SiCl4
Supply department 21 is electrically connected, and the PLC controller 41 is used to receive the pressure value and institute that the pressure-detecting device 31 is fed back
The forming diameter of the plug 101 of the feedback of diameter measurer 32 is stated, and the air inlet 111 is controlled according to the pressure value, is gone out
The aperture in air port 112 and the injection flow that the deposition blowlamp 22 is controlled according to the diameter value.
Specifically, prestoring the pressure preset threshold in the deposition chamber 11 in the PLC controller 41, will be connect
The Real-time Feedback pressure value received is compared with the pressure preset threshold, when the feedback pressure force value is pre- lower than the pressure
If when threshold value, the PLC controller 41, which sends control instruction, drops the aperture of the air inlet 111 or/and the air outlet 112
It is low, when the feedback pressure force value is higher than the pressure preset threshold, the PLC controller 41 send control instruction make it is described into
The aperture of air port 111 or/and the air outlet 112 increases, so that the air pressure in the deposition chamber 11 is maintained at optimum range
It is interior, stable air-flow is formed in the deposition chamber 11, it is ensured that does not deposit to the feed particles on deposition 100 surface of target rod
It can efficiently be discharged outside the cavity 11, and not influence the raw material spraying operation of the deposition blowlamp 22, improve feed particles
The precision and stability of deposition.The pressure preset threshold may be configured as the optimal pressure range in the deposition chamber 11.It is excellent
Choosing, the pressure-detecting device 31 is gas pressure sensor.
Further, the first solenoid valve 1110, second solenoid valve are respectively arranged in the air inlet 111, air outlet 112
1120, the air inlet 111, air outlet 112 respectively by first solenoid valve 1110, second solenoid valve 1120 with it is described
The output end of PLC controller 41 is connected, and the PLC controller 41 is by controlling first solenoid valve 1110, second solenoid valve
1120 aperture achievees the purpose that the control air inlet 111,112 aperture of air outlet.
The predetermined diameter threshold value of the plug 101 is prestored in the PLC controller 41, the predetermined diameter threshold value can be set
It is set to the optimum diameter range of finished product plug, the PLC controller 41 is by received 32 Real-time Feedback of the diameter measurer
Core rod forming diameter compared with the predetermined diameter threshold value, when the feedback diameter value be greater than the predetermined diameter threshold value
When, the PLC controller 41, which sends control instruction, reduces the injection flow of the deposition blowlamp 22, when the core rod forming of feedback
When diameter value is less than the predetermined diameter threshold value, the PLC controller 41, which sends control instruction, makes the spray of the deposition blowlamp 22
Amount of jet increases, so that the plug 101 that the deposition modeling goes out is maintained within the scope of optimum diameter, improves the plug 101
Product quality and performance.In the present embodiment, the optimum diameter range of the plug 101 is the .8mm of 58 .2mm~58.
Further, the SiCl4Supply department 21 passes through the output of mass flow controller 210 and the PLC controller
End is connected.The output end of the PLC controller 41 connects the mass flow controller 210, and the PLC controller 41 passes through control
The aperture of 210 valve of mass flow controller is made to increase or decrease the SiCl4Supply department 21 supplies the deposition spray
The raw material flow of lamp 22, to control the injection flow of the deposition blowlamp 22.
In the present embodiment, the diameter measurer 32 includes upper and lower spaced first caliper 321 and the second caliper
322, first caliper 321, the second caliper 322 are set to outside the deposition chamber, are respectively arranged on positioned at described second
Plug 101 described in the B(of position complete molding where position) Shi Suoshu plug 101 bottom end and 1/2 length at, in the plug
101 from top to bottom during deposition growing, and first caliper 321, the second caliper 322 can be according between the regular hours
It is formed every the first forming diameter value, the second forming diameter value for acquiring the plug 101 respectively, and by collected described first
Diameter value, the second forming diameter value feed back to the PLC controller 41, and the PLC controller 41 is calculated the first one-tenth described
The mean diameter value of type diameter value, the second forming diameter value, and by the mean diameter value with thereon predetermined diameter threshold value into
Row comparison, when the mean diameter value is greater than the predetermined diameter threshold value, the PLC controller 41, which sends control instruction, makes institute
The aperture for stating 210 valve of mass flow controller reduces, to reduce the SiCl4Supply department 21 supplies the deposition blowlamp 22
Raw material flow, when the mean diameter value is less than the predetermined diameter threshold value, the PLC controller 41 sends control instruction
Increase the aperture of 210 valve of mass flow controller, to increase the SiCl4Supply department 21 supplies the deposition spray
The raw material flow of lamp 22.
In the present embodiment, the SiCl4The raw material flow that supply department 21 supplies the deposition blowlamp 22 is set as 5g/min
~20g/min, further, first caliper 321, the second caliper 322 are CCD camera or ultrasonic distance-measuring sensor
One of.
In the present embodiment, the lifting motor 121 passes through the output of the first servo-driver 51 and the PLC controller 41
End electrical connection, the PLC controller 41 control the lifting motor 121 according to setting speed by first servo-driver 51
Degree rises.The rotation sunpender 13 is driven by spindle motor 131 to be rotated, and the spindle motor 131 passes through the second servo-driver
52 are electrically connected with the output end of the PLC controller 41, and the PLC controller 41 is controlled by second servo-driver 52
The spindle motor 131 is rotated according to setting speed.
In the present embodiment, described control unit 40 further includes the industrial personal computer with 41 two-way communication link of PLC controller
42, data exchange can be carried out between the PLC controller 41 and the industrial personal computer 42, specifically, the industrial personal computer can be passed through
42 set pressure preset threshold in the deposition chamber 11, the plug to 41 write-in program of PLC controller and input
The fortune such as rotary rpm of 101 predetermined diameter threshold value, the rate of climb of the lifting motor 121 and the spindle motor 131
Row parameter, real-time pressure value that the pressure-detecting device 31 that the PLC controller 41 receives is fed back and described calibrates dress
The real-time forming diameter value for setting the plug 101 of 32 feedbacks is storable on the industrial personal computer, and can be in industrial personal computer circle
Face is intuitively shown.
In one embodiment, described control unit 40 further includes and 41 two-way communication link of PLC controller
Touch display screen 43 can be shown the operating parameter of real-time 101 deposition process of plug and be opened by the touch display screen 43
It opens, close the plug depositing device automatic control system.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are also included in the patent protection scope of the utility model.
Claims (9)
1. a kind of optical fiber prefabricated rod mandrel depositing device automatic control system, which is characterized in that including plug sedimentation unit, raw material
Supply unit, detection unit and control unit；Wherein,
Plug sedimentation unit: including deposition chamber, lifting assembly and rotation sunpender, the upper end of the rotation sunpender is connected to described
On lifting assembly, the rotation sunpender can rise or fall vertically with the lifting assembly, be placed under the rotation sunpender
In the deposition chamber, it is described rotation sunpender lower end be connected with deposition target rod, the side of the deposition chamber be equipped with into
Air port, the opposite other side are equipped with air outlet；
Raw material supply unit: including SiCl4Supply department, N2Supply department, O2Supply department, H2Supply department and by pipeline with it is described
SiCl4Supply department, N2Supply department, O2Supply department and H2The deposition blowlamp of supply department's connection, the blowtorch mouth of the deposition blowlamp are located at
The inside of the deposition chamber is simultaneously arranged towards the deposition target rod, is used for the deposition target rod jet deposition raw material；
Detection unit: the survey including the pressure detector being set on the deposition chamber inner wall and set on the deposition chamber side
Diameter device；The pressure detector feeds back to the pressure value for the intracorporal pressure value of deposit cavity described in real-time detection
Described control unit, the diameter measurer are used for the diameter of real-time detection plug, and the diameter value is fed back to the control
Unit；
Control unit: including PLC controller, the input terminal of the PLC controller is electrically connected with the pressure detector, diameter measurer
It connects, the output end of the PLC controller and the air inlet and outlet and SiCl4Supply department's electrical connection, the PLC controller
The pressure value for being fed back according to the pressure detector controls the aperture of the air inlet and outlet and according to the survey
The diameter value of diameter device feedback controls the injection flow of the deposition blowlamp.
2. plug depositing device automatic control system according to claim 1, which is characterized in that described control unit is also wrapped
The industrial personal computer with the PLC controller two-way communication link is included, it can be by the industrial personal computer to the PLC controller write-in program
And input sets the preset value of each operating parameter.
3. plug depositing device automatic control system according to claim 1, which is characterized in that described control unit is also wrapped
The touch display screen with the PLC controller two-way communication link is included, the real-time core can be shown by the touch display screen
The plug depositing device automatic control system is closed in the operating parameter of stick deposition process and unlatching.
4. plug depositing device automatic control system according to claim 1, which is characterized in that the lifting assembly includes
Lifting motor, upright guide rail and sliding block, the lifting motor drives the sliding block to rise or fall along the upright guide rail, described
Rotate sunpender upper end by a cross bar connect on the slide block, the lifting motor by the first servo-driver with it is described
The output end of PLC controller is electrically connected.
5. plug depositing device automatic control system according to claim 1, which is characterized in that the rotation sunpender is by leading
Spindle motor driving rotation, the spindle motor are electrically connected by the second servo-driver with the output end of the PLC controller.
6. plug depositing device automatic control system according to claim 1, which is characterized in that the diameter measurer includes
Upper and lower spaced first caliper and the second caliper.
7. plug depositing device automatic control system according to claim 6, which is characterized in that the pressure detector is
Gas pressure sensor, first caliper, the second caliper are one of CCD camera or ultrasonic distance-measuring sensor.
8. plug depositing device automatic control system according to claim 1, which is characterized in that in the air inlet, go out
Air port is respectively arranged with the first solenoid valve, second solenoid valve, and the air inlet and outlet passes through first solenoid valve, second
Solenoid valve is connected with the output end of the PLC controller.
9. plug depositing device automatic control system according to claim 1, which is characterized in that the SiCl4Supply department is logical
Mass flow controller is crossed to be connected with the output end of the PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821307862.9U CN208776584U (en) | 2018-08-14 | 2018-08-14 | Optical fiber prefabricated rod mandrel depositing device automatic control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821307862.9U CN208776584U (en) | 2018-08-14 | 2018-08-14 | Optical fiber prefabricated rod mandrel depositing device automatic control system |
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| CN208776584U true CN208776584U (en) | 2019-04-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115010352A (en) * | 2022-07-01 | 2022-09-06 | 长飞光纤光缆股份有限公司 | Deposition device and method for high-uniformity quartz bar |
-
2018
- 2018-08-14 CN CN201821307862.9U patent/CN208776584U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115010352A (en) * | 2022-07-01 | 2022-09-06 | 长飞光纤光缆股份有限公司 | Deposition device and method for high-uniformity quartz bar |
| CN115010352B (en) * | 2022-07-01 | 2024-01-23 | 长飞石英技术(武汉)有限公司 | Deposition device and method for high-uniformity quartz bar |
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