CN106746585A - Optical fiber preform conical head processing unit (plant) - Google Patents
Optical fiber preform conical head processing unit (plant) Download PDFInfo
- Publication number
- CN106746585A CN106746585A CN201611114512.6A CN201611114512A CN106746585A CN 106746585 A CN106746585 A CN 106746585A CN 201611114512 A CN201611114512 A CN 201611114512A CN 106746585 A CN106746585 A CN 106746585A
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- China
- Prior art keywords
- fire door
- cooling cylinder
- optical fiber
- cooling
- preform
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Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
- C03B37/01225—Means for changing or stabilising the shape, e.g. diameter, of tubes or rods in general, e.g. collapsing
- C03B37/01251—Reshaping the ends
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2205/00—Fibre drawing or extruding details
- C03B2205/47—Shaping the preform draw bulb before or during drawing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
A kind of optical fiber preform conical head processing unit (plant), belongs to optical fiber cable production facility technical field.Including body of heater, graphite heating body is provided with, its short transverse has a preform heating chamber, the top of preform heating chamber is upper fire door, bottom is lower fire door, feature：Upper fire door cooling cylinder is arranged at the top of body of heater, and upper fire door cooling barrel chamber is corresponding with upper fire door, and preform hitch is set at the top of upper fire door cooling cylinder, and it seals with the top of upper fire door cooling cylinder and coordinates；Lower fire door cooling cylinder arranged at the bottom of body of heater, and lower fire door cooling barrel chamber is corresponding with lower fire door, and the side of lower fire door cooling cylinder arranges observation operation door and is connected with vacuum device, is sticked together collecting vessel with being connected to quartz in the bottom of lower fire door cooling cylinder.Help to protect graphite heating body, it is to avoid produce pollution to preform surface into the impurity in the air in stove by the external world at high temperature；Simplify furnace binding；Improve the stability of in-furnace temperature；Ensure safety.
Description
Technical field
The invention belongs to optical fiber cable production facility technical field, and in particular to a kind of optical fiber preform conical head processing dress
Put.
Background technology
Optical fiber is pulled out from preform, specifically, preform is heated into molten condition by fiber drawing furnace,
Preform be in molten condition it is drop-down go out optical fiber.In order to ensure the optical fiber and optical fiber prefabricating that are pulled out from preform
The core covering of rod（Sandwich layer and covering）Ratio it is consistent and reduce wire drawing starting when spillage of material and shorten optical fiber prefabricating
Rod pyrometric cone molding time, thus need to be before wire drawing, the wire drawing silk end to preform is pre-machined out fusiform cone
Head.
At present, the method for foregoing conehead being formed to the wire drawing initiating terminal of preform mainly has two kinds；One must utilize stone
Black induction heater heats the method that cone is drawn by deadweight to preform；Two is the method for drawing cone using oxyhydrogen flame heating.Before
Person is that preform is placed in graphite induction furnace vertically, softens it into the heating of tapering position preform, is leaned on
A uniform fusiform conehead is freely formed from gravity；The latter is the heat that is produced by hydrogen and oxygen combustion by optical fiber
Softening into tapering position for prefabricated rods, docks a quartzy caudal peduncle, then fusiform cone is formed by stretching under soft state
Head.Because the latter bothers and efficiency is low etc. compared with the former, thus industry is generally tended to use the former at present, and this can also be joined
See the specification of " a kind of method for improving graphite piece service life in optical fiber preform bar stretching furnace " that CN101481209B recommends
A kind of " preparation method and preparation facilities of preform " of the 0002nd to 0004 section and CN105271694A offer is said
The evaluation that the 0003rd to 0004 section of bright book.
It is to replace furnace air using inert gas into the measure in stove to prevent outside air at present, and protection is reached with this
The purpose of graphite piece and preform（Reference can be made to the 0021st section of the specification of foregoing CN101481209B）.It is lazy to being introduced in stove
Although property gas can play the oxidation for alleviating graphite piece and preform to a certain extent, can not keep away completely
Exempt from air to enter in stove, moreover due to needing to use inert gas, thus production cost can be increased.
For objective, foregoing two patent formulas can cash it respective described in the technique effect column of specification
Technique effect, but there is following logical disadvantage：First, because furnace inner environment is not in vacuum state, thus furnace air is special
It is that the extraneous air entered in stove can produce influence to graphite heating body and preform, for example, influences graphite heating part
Service life, and for example impurity at high temperature in air can be attached to the surface of preform；Second, lazy due to needing to use
Property gas is protected to graphite heating part, thus considerably increases processing（Produce）Cost；Third, due to needing to stove
Interior introducing protective gas, thus the complexity of body of heater is on the one hand increased, on the other hand cause warm area in stove to lose stabilization simultaneously
Ultimately result in optical fiber preform conical head size and lose stabilization；Fourth, due to cut off quartz stick together fall when in without tube bank dissipate
In state, thus work site environments were both undermined, there is the anxiety for undermining online assignment personnel's limbs again.
It is that this applicant has made beneficial design for above-mentioned prior art, it is necessary to improved, forms following
The technical scheme that will be introduced.
The content of the invention
Task of the invention is to provide one kind to help to make in a heated state to form vacuum and use protection stove in stove
The graphite heating body of body and avoid at high temperature by the external world enter stove in air in impurity to preform surface produce
Raw pollution, be conducive to abandoning being used using protective gas and significantly reduce processing cost and simplify furnace binding and improve stove
The stability of interior temperature and ensure the quality of optical fiber preform conical head size, be beneficial to stick together the quartz for cutting off carry out control and by
The optical fiber preform conical head processing unit (plant) of the limbs to improve the environment of Work places and avoid undermining online assignment personnel.
What task of the invention was performed by, a kind of optical fiber preform conical head processing unit (plant), including a body of heater, at this
Graphite heating body is provided with body of heater, the center of the short transverse of the graphite heating body is formed with a preform heating chamber,
The top of the preform heating chamber is configured to the upper fire door of body of heater, and bottom is configured to the lower fire door of body of heater, is characterised by
Fire door cooling cylinder on one is configured with the top of the body of heater and in the position corresponding to fire door on described, fire door cooling on this
The upper fire door cooling barrel chamber of cylinder is corresponding with upper fire door and is communicated with preform heating chamber, on the top of upper fire door cooling cylinder
Portion is equipped with a preform hitch, and the preform hitch is matched somebody with somebody with the top sealing of upper fire door cooling cylinder
Close；Fire door cooling cylinder is configured with the bottom of body of heater and in the position corresponding to the lower fire door, the lower fire door cooling
Cylinder lower fire door cooling barrel chamber it is corresponding with lower fire door and it is same communicated with preform heating chamber, in lower fire door cooling cylinder
Side be equipped with observation operation door and be connected with one for vacuumizing that the preform heating chamber is vacuumized
Mechanism, and sticked together collecting vessel with being connected to a quartz in the bottom of lower fire door cooling cylinder.
In a specific embodiment of the invention, described upper fire door cooling cylinder has fire door cooling cylinder cooling on
Dielectric cavity, matches somebody with somebody in the upper lateral part of upper fire door cooling cylinder and is connected to fire door cooling cylinder cooling medium fairlead on, and cold in upper fire door
But the following side of cylinder introduces pipe with fire door cooling cylinder cooling medium is connected on one, on this fire door cooling cylinder cooling medium fairlead with
And upper fire door cooling cylinder cooling medium introduces fire door cooling cylinder cooling medium chamber on Guan Junyu and communicates, and circulated with cooling medium
Feedway is connected.
In another specific embodiment of the invention, described upper fire door cooling cylinder cooling medium introduce pipe with it is described
Upper fire door cooling cylinder cooling medium fairlead form diagonal relationship each other.
In another specific embodiment of the invention, described preform hitch includes that a cooling cylinder is close
Capping, a suspension hook and a suspension beam, cooling cylinder closure are held on the top of the upper fire door cooling cylinder and cold with upper fire door
But the top surface sealing of cylinder coordinates, and suspension hook is fixed on cooling cylinder closure towards the middle position of upper side, and suspension beam is fixed on
Cooling cylinder closure cools down the side of barrel chamber towards the upper fire door.
In another specific embodiment of the invention, in the cooling cylinder closure towards fire door cooling cylinder on described
The edge of the chamber side and circumferencial direction around cooling cylinder closure offers a seal groove, in the seal groove
A sealing ring is embedded with, the sealing ring is sealed with the top surface of upper fire door cooling barrel chamber and coordinated；Opened in one end of described suspension beam
It is provided with an optical fiber prefabricating socket slot to make way.
In an also specific embodiment of the invention, described lower fire door cooling cylinder has fire door cooling cylinder
Cooling medium chamber, matches somebody with somebody in the upper lateral part of lower fire door cooling cylinder and is connected to fire door cooling cylinder cooling medium fairlead, and in lower stove
The following side of mouth cooling cylinder introduces pipe with fire door cooling cylinder cooling medium is connected to, and the lower fire door cooling cylinder cooling medium is drawn
Fire door cooling cylinder cooling medium chamber communicates under pipe and lower fire door cooling cylinder cooling medium introduce Guan Junyu, and and cooling medium
Circulation supply equipment is connected.
Of the invention more and in a specific embodiment, described lower fire door cooling cylinder cooling medium fairlead and institute
The lower fire door cooling cylinder cooling medium stated introduces pipe and forms diagonal relationship each other.
In an of the invention and then specific embodiment, the lower fire door cooling cylinder sidepiece and corresponding to
The position of the observation operation door is formed with an installing frame, on this installing frame and positioned at the short transverse of door installing frame
Side be provided with lock, the opposite side of the short transverse of the observation operation Men Yumen installing frames is pivotally connected and in observation
The position that operation door corresponds to the lock is fixed with lock seat, and lock is engaged with lock seat, in observation operation door court
The side surrounding of door installing frame is provided with door sealing packing ring, the door sealing packing ring operates the one of door towards observation with door installing frame
Side seal coordinates, and operates the central region of door to be provided with transparent window in observation.
Include the first vacuum-pumping tube in vacuum device of the invention and more and in a specific embodiment, described
Section, vacuumize motor, vacuum pumping pump, filter and second and vacuumize pipeline section, first vacuumizes one end of pipeline section and the lower stove
The following side of mouth cooling cylinder is connected and is communicated with the lower fire door cooling barrel chamber, and first other end for vacuumizing pipeline section is constituted to be had
One first flange, flange fixing screws are provided with the surrounding edge bit interval of the first flange, and pipeline section is vacuumized first
Middle part be respectively arranged with a pressure sensor and a relief valve, vacuumize motor and vacuum pumping pump and be driven and coordinate and true by taking out
Empty pump is arranged on walking seat together with motor is vacuumized, and vacuum pumping pump air inlet pipe and the filter of filter of the vacuum pumping pump go out
Gas port is connected, and the vacuum pumping pump escaping pipe of vacuum pumping pump is communicated with the external world, and filter is with vacuum pumping pump and is supported on
On walking seat, second one end for vacuumizing pipeline section is constituted a second flange, described flange fixing screws and the second flange
It is fixedly connected, second vacuumizes the other end of pipeline section is connected with the filtering air inlet of filter, and pipeline section is vacuumized second
Middle part is with being connected to a magnetic valve.
It is of the invention and and then a specific embodiment in, it is described walking seat bottom be provided with road wheel,
A flange seal packing ring and a screen pack are provided between first, second flange, screen pack is located at first flange and flange
Between seal washer.
The technical scheme that the present invention is provided has the following technical effect that：Taken out due to having been connected in the sidepiece of lower fire door cooling cylinder
Vacuum mechanism, is vacuumized by vacuum device to preform heating chamber, thus both can help to protect graphite heating body, and
It is avoided that and pollution is produced to preform surface into the impurity in the air in stove by the external world at high temperature；Due to that need not make
With protective gas, thus the processing cost to optical fiber preform conical head can be both reduced, furnace binding can have significantly been simplified again；Due to exempting from
With protective gas, thus the stability of in-furnace temperature can be significantly improved and the quality of optical fiber preform conical head size is ensured；By
Sticked together in the quartz that can make cut-out and sticked together collecting vessel into quartz, thus the environment of Work places can be improved and online assignment people is ensured
The safety of member.
Brief description of the drawings
Fig. 1 is embodiments of the invention and application examples schematic diagram.
Specific embodiment
In order to be more clearly understood from technical spirit of the invention and beneficial effect, applicant is below with embodiment
Mode elaborate, but be not the limitation to the present invention program to the description of embodiment, it is any according to structure of the present invention
Think done only formal rather than substantial equivalent transformation and be regarded as technical scheme category.
Fig. 1 is referred to, a body of heater 1 is shown（Also furnace shell can be claimed）, graphite heating body 11 is provided with the body of heater 1, should
The center of the short transverse of graphite heating body 11 is formed with a preform heating chamber 111, the preform heating chamber 111
Top be configured to the upper fire door 12 of body of heater 1, and bottom is configured to the lower fire door 13 of body of heater 1.
The technical essential of the technical scheme provided as the present invention：On the top of foregoing body of heater 1 and corresponding to foregoing
The position of upper fire door 12 is preferably configured with fire door cooling cylinder 2 on by welding manner, and upper fire door of fire door cooling cylinder 2 is cold on this
But barrel chamber 21 is corresponding with upper fire door 12 and is communicated with preform heating chamber 111, matches somebody with somebody at the top of upper fire door cooling cylinder 2
A preform hitch 3 is provided with, the preform hitch 3 is sealed with the top of upper fire door cooling cylinder 2 and coordinated；
Fire door cooling cylinder 4 is configured with the bottom of body of heater 1 and in the position corresponding to foregoing lower fire door 13, the lower fire door cooling
Cylinder 4 lower fire door cooling barrel chamber 41 it is corresponding with lower fire door 13 and it is same communicated with preform heating chamber 111, in lower stove
The side of mouth cooling cylinder 4 is equipped with observation operation door 5 and is connected with one for being taken out to foregoing preform heating chamber 111
The vacuum device 6 of vacuum, and sticked together collecting vessel 7 with being connected to a quartz in the bottom of lower fire door cooling cylinder 4.
Continue to see Fig. 1, foregoing upper fire door cooling cylinder 2 has fire door cooling cylinder cooling medium chamber 22 on, in upper fire door
The upper lateral part of cooling cylinder 2 with being connected to fire door cooling cylinder cooling medium fairlead 23 on, and in the following side of upper fire door cooling cylinder 2
Pipe 24, fire door cooling cylinder cooling medium fairlead 23 and upper fire door on this are introduced with fire door cooling cylinder cooling medium on is connected to
Cooling cylinder cooling medium introduces pipe 24 and is communicated with upper fire door cooling cylinder cooling medium chamber 22, and circulates supply with cooling medium
Device is connected.
As shown in Figure 1, foregoing upper fire door cooling cylinder cooling medium introduces pipe 23 and is cooled down with foregoing upper fire door cooling cylinder
Medium fairlead 24 forms diagonal relationship each other.
Continue to see Fig. 1, the structure that is preferred rather than being definitely limited to of foregoing preform hitch 3 is as follows：Including
One cooling cylinder closure 31, a suspension hook 32 and a suspension beam 33, cooling cylinder closure 31 are held on foregoing upper fire door cooling cylinder 2
Top and being sealed with the top surface of upper fire door cooling cylinder 2 coordinates, and suspension hook 32 is fixed on cooling cylinder closure with thread connecting mode
31 towards upper side middle position, suspension beam 33 is fixed on cooling cylinder closure 31 towards foregoing upper fire door cooling barrel chamber 21
Side（Side i.e. under）.
As shown in Figure 1, foregoing cooling cylinder closure 31 towards fire door cooling barrel chamber 21 side on foregoing edge
And a seal groove 311 is offered around the circumferencial direction of cooling cylinder closure 31, one is embedded with the seal groove 311
Sealing ring 3111, the sealing ring 3111 is sealed with the top surface of upper fire door cooling barrel chamber 21 and coordinated；The one of foregoing suspension beam 33
End offers an optical fiber prefabricating socket slot to make way 331.
Continue to see Fig. 1, foregoing lower fire door cooling cylinder 4 has fire door cooling cylinder cooling medium chamber 42, in lower fire door
The upper lateral part of cooling cylinder 4 with being connected to fire door cooling cylinder cooling medium fairlead 43, and in the following side of lower fire door cooling cylinder 4
Pipe 44, the lower fire door cooling cylinder cooling medium fairlead 43 and lower fire door are introduced with fire door cooling cylinder cooling medium is connected to
Cooling cylinder cooling medium introduces pipe 44 and is communicated with lower fire door cooling cylinder cooling medium chamber 42, and circulates supply with cooling medium
Device is connected.
As shown in Figure 1, foregoing lower fire door cooling cylinder cooling medium fairlead 43 is cooled down with foregoing lower fire door cooling cylinder
Medium introduces pipe 44 and forms diagonal relationship each other.
Foregoing cooling medium is water, and foregoing cooling medium circulation supply equipment preferably uses circulating pump.
Foregoing lower fire door cooling cylinder 4 sidepiece and corresponding to foregoing observations operation door 5 position be formed with one
Installing frame 45, the side of the short transverse on this installing frame 45 and positioned at door installing frame 45 is provided with lock 451, foregoing
Observation operation door 5 is pivotally connected with the opposite side of the short transverse of door installing frame 45（By hinge or bearing pin）And grasped in observation
Make door 5 and be fixed with lock seat 51 corresponding to the position of foregoing lock 451, lock 451 is engaged with lock seat 51, is observing
Operation door 5 is provided with door sealing packing ring 52 towards the side surrounding of door installing frame 45, the door sealing packing ring 52 and door installing frame 45
Coordinate towards a side seal of observation operation door 5, and transparent window 53 is provided with the central region for observing operation door 5.
Continue to see Fig. 1, foregoing vacuum device 6 vacuumizes pipeline section 61, vacuumizes motor 62, vacuum pumping pump including first
63rd, filter 64 and second vacuumizes pipeline section 65, and first vacuumizes one end of pipeline section 61 and the downside of foregoing lower fire door cooling cylinder 4
Portion connects and is communicated with foregoing lower fire door cooling barrel chamber 41, and first other end for vacuumizing pipeline section 61 is constituted a first flange
611, the surrounding edge bit interval of the first flange 611 is provided with flange fixing screws 6111, vacuumize pipeline section first
61 middle part is respectively arranged with a pressure sensor 612 and a relief valve 613, vacuumizes motor 62 and matches somebody with somebody with the transmission of vacuum pumping pump 63
Merge and be arranged on walking seat 633 together with motor 62 is vacuumized by vacuum pumping pump 63, the vacuum pumping pump of the vacuum pumping pump 63 enters
Tracheae 631 is connected with the filter outlet mouthful 641 of filter 64, and the vacuum pumping pump escaping pipe 632 of vacuum pumping pump 63 and the external world
Communicate, filter 64 is with vacuum pumping pump 63 and is supported on walking seat 633, second one end for vacuumizing pipeline section 65 is constituted
There is a second flange 651, foregoing flange fixing screws 6111 are fixedly connected and by nut 61111 with the second flange 651
Limit, second vacuumizes the other end of pipeline section 65 is connected with the filtering air inlet 642 of filter 64, and pipeline section is vacuumized second
65 middle part is with being connected to a magnetic valve 652.
As shown in Figure 1, the bottom of foregoing walking seat 633 is provided with road wheel 6331, in foregoing first, second flange
611st, a flange seal packing ring 66 and a screen pack 67 are provided between 651, it is close with flange that screen pack 67 is located at first flange 611
Between seal washer 66.
Applicant with reference to Fig. 1 describe it is of the invention use, preform hitch 3 is moved away from by online assignment personnel
Position where the preform 8 illustrated into figure, and the prefabricated socket 81 of preform 8 is directed at foregoing predispersed fiber
Socket slot to make way 331 processed, makes the prefabricated rods bulb 82 on the top for being located at prefabricated socket 81 be supported on the suspension beam chamber for hanging beam 33
It is interior.Drawn by the boathook of hoist tool and in suspension hook 32, preform 8 is cooled down into barrel chamber from the upper fire door of upper fire door cooling cylinder 2
21 upper accent is introduced.Now, cooling cylinder closure 31 passes through the top surface of foregoing sealing ring 3111 and upper fire door cooling cylinder 2
Sealing coordinates, and due to the Action of Gravity Field of preform 8, sealing ring 3111 can be made to show and upper fire door cooling cylinder 2
Excellent sealing effectiveness between top surface.In this condition and as shown in Figure 1, the pact upper portion of preform 8 in
In upper fire door cooling barrel chamber 21, and lower half is then located in foregoing preform heating chamber 111.Will by online assignment personnel
Observation operation door 8 is closed, and the motor 62 that vacuumizes of vacuum device 6 works, and drives vacuum pumping pump 63, upper and lower fire door cooling cylinder
Air in chamber 21,41 and preform heating chamber 111 is evacuated pump 63 and extracts out, and specifically, air is successively through opening
It is located at the bleeding point 46 of the following side of lower fire door cooling cylinder 4, first vacuumizes pipeline section 61（Relief valve 613 is closed）、
Screen pack 67, second vacuumize pipeline section 65（Magnetic valve 652 is in opening）, filtering air inlet 642, filter outlet mouthful
641st, vacuum pumping pump air inlet pipe 631 and vacuum pumping pump 63, until draining into the external world by vacuum pumping pump gas outlet 632.The journey for vacuumizing
Degree is by pressure sensor 612（Also pressure gauge can be claimed）Disclose, the present invention is designed as between 50-150mbar.
Under aforesaid state, the electrified regulation of graphite heating body 11, while upper fire door cooling cylinder cooling medium chamber 22 and under
Cooling medium in fire door cooling cylinder cooling medium chamber 42（Water）Circulating reflux.Under the heated condition of graphite heating body 11, work as temperature
When degree reaches 1600-2000 DEG C, the bottom of preform 8 melts and forms fusiform conehead 83, and in conehead 83
Bottom is also linked with a quartz produced in the forming process of conehead 83 and sticks together 84, and the situation is by online assignment personnel by foregoing
Photopic vision window 53 is appreciated that.Then, graphite heating body 11 stops heating, about after relief valve 613 is opened after 20-50min, while observing pressure
When the indicating value of force snesor 612 is shown as zero, the locking relation of lock 451 and lock seat 51 is released, opens observation operation door 5,
And quartz is sticked together 84 by manual work mode（Also can claim " material head "）Excision, the quartz of the excision 84 automatic quartz that drop to that stick together stick together receipts
Collection bucket 7 in, accumulation to it is a certain amount of when clear out.Then drawn by hoist tool and suspension hook 32, by cooling cylinder closure 31 together with being in
The preform 8 of suspension status is hung in apparatus of the present invention.
In sum, the technical scheme that the present invention is provided compensate for the shortcoming in prior art, favorably accomplish invention
Task, has faithfully cashed the technique effect referred in the superincumbent technique effect column of applicant.
Claims (10)
1. a kind of optical fiber preform conical head processing unit (plant), an including body of heater (1), graphite heating body is provided with the body of heater (1)
(11), the center of the short transverse of the graphite heating body (11) is formed with a preform heating chamber (111), the optical fiber prefabricating
The top of rod heating chamber (111) is configured to the upper fire door (12) of body of heater (1), and bottom is configured to the lower fire door (13) of body of heater (1),
It is characterized in that it is cold to be configured with fire door on the top of the body of heater (1) and in the position corresponding to fire door (12) on described
But cylinder (2), upper fire door of fire door cooling cylinder (2) cools down that barrel chamber (21) is corresponding with upper fire door (12) and and optical fiber prefabricating on this
Rod heating chamber (111) is communicated, and a preform hitch (3), the optical fiber are equipped at the top of upper fire door cooling cylinder (2)
Prefabricated rods hitch (3) is sealed with the top of upper fire door cooling cylinder (2) and coordinated；In the bottom of body of heater (1) and corresponding to
The position of the lower fire door (13) is configured with fire door cooling cylinder (4), the lower fire door cooling barrel chamber of the lower fire door cooling cylinder (4)
(41) it is corresponding with lower fire door (13) and it is same communicated with preform heating chamber (111), in lower fire door cooling cylinder (4)
Side is equipped with an observation and operates door (5) and be connected with one is used for what the preform heating chamber (111) was vacuumized
Vacuum device (6), and sticked together collecting vessel (7) with being connected to a quartz in the bottom of lower fire door cooling cylinder (4).
2. optical fiber preform conical head processing unit (plant) according to claim 1, it is characterised in that described upper fire door cooling cylinder
(2) it is cold with fire door on is connected in the upper lateral part of upper fire door cooling cylinder (2) with fire door cooling cylinder cooling medium chamber (22) on
But cylinder cooling medium fairlead (23), and be situated between with fire door cooling cylinder cooling on is connected in the following side of upper fire door cooling cylinder (2)
Matter introduces pipe (24), and fire door cooling cylinder cooling medium fairlead (23) and upper fire door cooling cylinder cooling medium introduce pipe on this
(24) communicated with upper fire door cooling cylinder cooling medium chamber (22), and be connected with cooling medium circulation supply equipment.
3. optical fiber preform conical head processing unit (plant) according to claim 2, it is characterised in that described upper fire door cooling cylinder
Cooling medium introduces pipe (23) and forms diagonal relationship each other with described upper fire door cooling cylinder cooling medium fairlead (24).
4. optical fiber preform conical head processing unit (plant) according to claim 1, it is characterised in that described preform hangs
Suspension mechanism (3) includes a cooling cylinder closure (31), a suspension hook (32) and suspension beam (33), and cooling cylinder closure (31) is shelved
Cooperation is sealed in the top of the upper fire door cooling cylinder (2) and with the top surface of upper fire door cooling cylinder (2), suspension hook (32) is fixed on
Cooling cylinder closure (31) hangs beam (33) and is fixed on cooling cylinder closure (31) towards institute towards the middle position of upper side
State the side of fire door cooling barrel chamber (21).
5. optical fiber preform conical head processing unit (plant) according to claim 4, it is characterised in that in the cooling cylinder closure
(31) edge of barrel chamber (21) side is cooled down and around the circumference side of cooling cylinder closure (31) towards the upper fire door
To a seal groove (311) is offered, a sealing ring (3111), the sealing ring are embedded with the seal groove (311)
(3111) sealed with the top surface of upper fire door cooling barrel chamber (21) and coordinated；An optical fiber is offered in one end of described suspension beam (33)
Prefabricated socket slot to make way (331).
6. optical fiber preform conical head processing unit (plant) according to claim 1, it is characterised in that described lower fire door cooling cylinder
(4) it is cold with fire door is connected in the upper lateral part of lower fire door cooling cylinder (4) with once fire door cooling cylinder cooling medium chamber (42)
But cylinder cooling medium fairlead (43), and be situated between with fire door cooling cylinder cooling is connected in the following side of lower fire door cooling cylinder (4)
Matter introduces pipe (44), and the lower fire door cooling cylinder cooling medium fairlead (43) and lower fire door cooling cylinder cooling medium introduce pipe
(44) communicated with lower fire door cooling cylinder cooling medium chamber (42), and be connected with cooling medium circulation supply equipment.
7. optical fiber preform conical head processing unit (plant) according to claim 6, it is characterised in that described lower fire door cooling cylinder
Cooling medium fairlead (43) introduces pipe (44) and forms diagonal relationship each other with described lower fire door cooling cylinder cooling medium.
8. optical fiber preform conical head processing unit (plant) according to claim 1, it is characterised in that in the lower fire door cooling cylinder
(4) sidepiece and an installing frame (45) is being formed with the position corresponding to observation operation door (5), in this installing frame
(45) side of the short transverse on and positioned at door installing frame (45) is provided with lock (451), observation operation door (5) with
The opposite side of the short transverse of door installing frame (45) is pivotally connected and in observation operation door (5) corresponding to the lock (451)
Position be fixed with lock seat (51), lock (451) and the lock seat (51) is engaged, and door (5) towards door is operated in observation
The side surrounding of installing frame (45) is provided with door sealing packing ring (52), and the door sealing packing ring (52) is seen with door installing frame (45) direction
The side seal for examining operation door (5) coordinates, and operates the central region of door (5) to be provided with transparent window (53) in observation.
9. optical fiber preform conical head processing unit (plant) according to claim 1, it is characterised in that described vacuum device (6)
Pipeline section (61) is vacuumized including first, motor (62), vacuum pumping pump (63), filter (64) and second is vacuumized and is vacuumized pipeline section
(65), first one end for vacuumizing pipeline section (61) be connected with the following side of the lower fire door cooling cylinder (4) and with the lower stove
Mouth cooling barrel chamber (41) is communicated, and first other end for vacuumizing pipeline section (61) is constituted a first flange (611), in first method
The surrounding edge bit interval of blue (611) is provided with flange fixing screws (6111), at the first middle part for vacuumizing pipeline section (61)
A pressure sensor (612) and a relief valve (613) are respectively arranged with, motor (62) are vacuumized and is matched somebody with somebody with vacuum pumping pump (63) transmission
Merge and be arranged in walking seat (633) together with motor (62) is vacuumized by vacuum pumping pump (63), vacuum pumping pump (63) take out
Vavuum pump air inlet pipe (631) is connected with the filter outlet mouthful (641) of filter (64), and the vacuum pumping pump of vacuum pumping pump (63)
Escaping pipe (632) is communicated with the external world, and filter (64) is with vacuum pumping pump (63) and is supported in walking seat (633), the
Two one end for vacuumizing pipeline section (65) are constituted a second flange (651), described flange fixing screws (6111) with this second
Flange (651) is fixedly connected, and the filtering air inlet (642) of second other end and filter (64) for vacuumizing pipeline section (65) connects
Connect, match somebody with somebody at the second middle part for vacuumizing pipeline section (65) and be connected to a magnetic valve (652).
10. optical fiber preform conical head processing unit (plant) according to claim 9, it is characterised in that in walking seat (633)
Bottom be provided with road wheel (6331), be provided with a flange seal packing ring between first, second flange (611,651)
(66) and a screen pack (67), screen pack (67) is between first flange (611) and flange seal packing ring (66).
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| CN201611114512.6A CN106746585B (en) | 2016-12-07 | 2016-12-07 | Optical fiber perform conical head processingequipment |
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| CN201611114512.6A CN106746585B (en) | 2016-12-07 | 2016-12-07 | Optical fiber perform conical head processingequipment |
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| CN106746585B CN106746585B (en) | 2023-03-28 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107235624A (en) * | 2017-07-25 | 2017-10-10 | 江苏亨通光纤科技有限公司 | Preform vacuum-pumping density seal apparatus and its vacuum-pumping density encapsulation method |
| CN108716459A (en) * | 2018-04-24 | 2018-10-30 | 烽火通信科技股份有限公司 | A kind of regulating device for adjusting head vacuum magnitude |
| CN109516687A (en) * | 2018-12-28 | 2019-03-26 | 江苏通鼎光棒有限公司 | A kind of optical fiber preform bar stretching furnace and its drawing process |
| CN110746110A (en) * | 2019-12-10 | 2020-02-04 | 普天线缆集团有限公司 | Improved 1550 low loss optical fiber manufacturing apparatus and method of operation |
| CN112159094A (en) * | 2020-05-14 | 2021-01-01 | 江苏永鼎光纤科技有限公司 | Automatic processing method for optical fiber preform taper head |
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