CN208008678U - A kind of casing prefabricated stick drawn wire device - Google Patents
A kind of casing prefabricated stick drawn wire device Download PDFInfo
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- CN208008678U CN208008678U CN201721690666.XU CN201721690666U CN208008678U CN 208008678 U CN208008678 U CN 208008678U CN 201721690666 U CN201721690666 U CN 201721690666U CN 208008678 U CN208008678 U CN 208008678U
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- casing
- bar
- plug
- seal
- seat board
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Abstract
The utility model creation mainly provides a kind of casing prefabricated stick drawn wire device, including casing and the mandrel component that is inserted perpendicularly into casing；Mandrel component is fixed on casing top by sealing vacuumizing assembly；The mandrel component includes the plug of coaxial welding together and draws bar, and plug and the venthole of sheath assembly lower part are coaxial；It is described draw bar top and stretch out one end of the seat board fixed by rotary nut；It is equipped with first seal between bar and seat board drawing, second seal is equipped between seat board and casing；It is transparent polished rod, the equal frosted processing of rest part to draw the part that bar is contacted with first seal.During the utility model is created, the mode assembled again after bar is docked with plug will be drawn, fiber cores/concentricity can effectively be improved, improve optical fiber qualification rate, by the way that the processing of bar surface frosted will be drawn, the radiant heat of seal surface absorption can be greatly lowered, to improve the service life for sealing element.
Description
Technical field
The invention belongs to preform manufacturing technology field, is filled more particularly, to a kind of casing prefabricated stick drawn wire
It sets.
Background technology
Prefabricated rods manufacturing process has one-step method (i.e. core/covering of prefabricated rods is completed by gas-phase deposition) and two steps
Method (vapor deposition complete plug+outer packet technology), wherein two-step method manufacturing process are from traditional casing law technology (Rod In
Tube, RIT) develop into the high online RIC of production efficiency (Rod In Cylinder) technology.Online RIC technologies can be at present
It is combined with plug using the sleeve of Φ 150/200mm, collapsing is then synchronized in wire drawing, speed of production can reach 2800m/
Min, length of string can be more than 5000km.The RIC production technologies can be used in the plug of MCVD, PCVD, VAD and OVD manufacture.
Since domestic one-step method (complete synthesizing process) manufacture prefabricated rods technical bottleneck and production capacity increase period are slow, lead to state's inner preform production capacity
It is long-term insufficient, it is far below demand of the optical fiber production capacity to prefabricated rods.And the existing opening combinations stick formed by casing and plug exists
The links such as burn into cleaning, dry and assembling are relative complex compared with the process of solid core prefabricated rods, and control group is also needed in drawing process
The vacuum degree of prefabricated rods is closed to ensure that pyrometric cone position fully combines bubble-free to generate.In addition, with large size prefabricated stick technology
Development, prefabricated rods length is longer, and it is higher that core/concentricity scraps ratio occurs in wire drawing optical fiber；And large size prefabricated stick wire drawing needs
The O-ring that the higher wire drawing power wanted will be used in sealing is easier scaling loss, so as to cause plug and shell clearance vacuum
Degree decline rear impurity or air, which enter, causes core/a large amount of bubbles in packet interface, string diameter to fluctuate unqualified, fiber strength decline.
Invention content
In view of this, the invention is intended to overcome above-mentioned defect existing in the prior art, propose that a kind of casing is prefabricated
Stick wire-drawing frame.
In order to achieve the above objectives, the technical solution of the invention is realized in：
A kind of casing prefabricated stick drawn wire device, including casing and the mandrel component that is inserted perpendicularly into casing；The plug
Component is fixed on casing top by sealing vacuumizing assembly；The sealing vacuumizing assembly includes being fixed on casing by collet
The seat board on top；The mandrel component includes the plug of coaxial welding together and draws bar, and plug is logical with sheath assembly lower part
Stomata is coaxial；It is described draw bar top and stretch out one end of the seat board fixed by rotary nut；The is equipped between bar and seat board drawing
One sealing element is equipped with second seal between seat board and casing；The vacuum-pumping tube road of the seat board is communicated with vacuum pump；Institute
It states and draws the part that bar is contacted with first seal for transparent polished rod, the equal frosted of rest part is handled.
Further, the diameter for drawing bar is less than the diameter of the plug.
Further, the first seal uses O-ring.
Further, the rotary nut lower end be equipped with for the interconnecting piece that draws bar and be connected and fixed, the upper end of rotary nut
Equipped with the honeycomb hole for heat dissipation.
Further, the bar that draws is welded on plug upper end, and the mandrel component entirety amount of deflection constituted is less than 0.5mm/m.
A method of the above-mentioned casing prefabricated stick drawn wire device of manufacture includes the following steps：
1. the casing part made drawing is tapered, and tapered tip position is cut off, form the ventilation of a 4-8mm
Hole；
2. above-mentioned casing is carried out pickling and water washing operations respectively, envelope cone operation is carried out after cleaning, is closed what tapering was reserved
Venthole, and carry out drying operation；
3. selecting suitable plug and to draw bar, rod outer surface will be drawn except the part contacted with sealing element in addition at whole frosteds
Reason later by the two welding fabrication, and ensures that the mandrel component entirety bow degree after welding is less than 0.5mm/m；
4. by mandrel component assembly on sheath assembly；When assembly, by the vertical plug-in-sleeve of mandrel component, core is avoided
Rod assembly is contacted with internal surface of sleeve pipe；
5. the seat board for sealing vacuumizing assembly is fixed on the card slot of casing tail portion using collet, draw bar and seat board it
Between first seal is installed, will draw bar using rotary nut later is fixed on seat board；
6. water inlet pipe and water outlet water pipe of the installation for supplying cooling circulating water on collet, and the tracheae vacuumized is filled
With in place, vacuum pump is connected on the tracheae vacuumized.
It is a kind of using above-mentioned casing prefabricated stick drawn wire device carry out wire drawing method be：By the casing prefabricated stick drawn wire
Device is put into high temperature fiber drawing furnace, is slowly heated up after starting vacuum pumping pump, and the heating-up time controls in 40-60min, starts later
It bores, reel off raw silk from cocoons, wire-drawing operation.
Compared with the existing technology, the invention has the advantage that：
In the invention, the mode assembled again after bar is docked with plug will be drawn, can effectively improve fiber cores/
Concentricity improves optical fiber qualification rate, and by that will draw the processing of bar surface frosted, seal surface absorption can be greatly lowered
Radiant heat avoids to improve the service life for sealing element because sealing element high temperature scaling loss causes leakproofness to decline, in turn
Air and impurity enter core/packet interface and caused by the situation scrapped of a large amount of optical fiber occur.
Description of the drawings
The attached drawing for constituting the part of the invention is used for providing further understanding the invention, present invention wound
The illustrative embodiments and their description made do not constitute the improper restriction to the invention for explaining the invention.
In attached drawing：
Fig. 1 is the structural schematic diagram of the invention middle sleeve prefabricated stick drawn wire device；
Fig. 2 is the structural schematic diagram of mandrel component in the invention；
Fig. 3 is the structural schematic diagram of rotary nut in the invention.
Reference sign：
1- casings；2- mandrel components；3- seals vacuumizing assembly；4- collets；5- seat boards；6- plugs；7- draws bar；8- ventilates
Hole；9- rotary nuts；10- first seals；11- second seals；12- light bar segments；13- frosted sections；14- honeycomb holes.
Specific implementation mode
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the invention can
To be combined with each other.
In the description of the invention, it is to be understood that term "center", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description the invention and simplifies to describe, rather than indicate
Or imply that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore cannot understand
For the limitation to the invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can explicitly or implicitly include one or more this feature.In the description of the invention, unless separately
It is described, the meaning of " plurality " is two or more.
In the description of the invention, it should be noted that unless otherwise clearly defined and limited, term " peace
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 also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning of the term in the invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments creates.
A kind of casing prefabricated stick drawn wire device, as shown in Figures 1 to 3, including casing 1 and the core that is inserted perpendicularly into casing 1
Rod assembly 2；The mandrel component 2 is fixed on 1 top of casing by sealing vacuumizing assembly 3；The sealing vacuumizing assembly 2 is wrapped
Include the seat board 5 that 1 top of casing is fixed on by collet 4；The mandrel component 2 includes the plug 6 of coaxial welding together and draws
Bar 7, plug 6 and the venthole 8 of 2 lower part of sheath assembly are coaxial；One end of the seat board 5 is stretched out by rotating in 7 top of bar of drawing
Nut 9 is fixed；It is equipped with first seal 10 between bar 7 and seat board 5 drawing, second seal is equipped between seat board 5 and casing 1
11；The vacuum-pumping tube road of the seat board 5 is communicated with vacuum pump；It is described that draw part that bar is contacted with first seal be transparent
Light bar segment 12, rest part are the processed frosted section of frosted 13.Above-mentioned first seal 10 uses O-ring.
The one end for drawing bar retains a part of original pellucidity, to ensure to draw bar not with what sealing element (O-ring) contacted
Have too many light radiation, rest part whole frosted processing.Front end is more general by the luminous intensity for drawing bar radiation of frosted processing
It is logical to draw bar and increase several times or even tens times, it is greatly lowered draws the radiation-curable light intensity of bar part with what O-ring was contacted in this way
Degree reduces the risk of O-ring high temperature scaling loss, improves O- so declining obviously with the O-ring surface temperatures that bar contacts are drawn
The ring service life.
The above-mentioned diameter for drawing bar 7 is less than the diameter of the plug 6, in general, the diameter for drawing bar is preferably 1-2mm.It can rise
To while pulling plug effect, the trepanning of pedestal is minimized, even more important reason is, in the feelings for ensureing mechanical strength
Under condition, the shank diameter as small as possible that draws can reduce conduction to the luminous intensity of sealing element position, effectively raise sealing element
Service life, sealing effect are more preferable.
9 lower end of above-mentioned rotary nut be equipped with for the interconnecting piece that draws bar 7 and be connected and fixed, the upper end of rotary nut 9 is equipped with
Honeycomb hole 14 for heat dissipation.It can will conduct to the light intensity for drawing bar top, will be radiated in environment, and reduce to greatest extent
The temperature of rotary nut ensure that the stability of sealing part works to reduce the surface temperature of sealing element.
The above-mentioned bar that draws is welded on 6 upper end of plug, and the whole amount of deflection of the mandrel component 2 constituted is less than 0.5mm/m.
A method of the above-mentioned casing prefabricated stick drawn wire device of manufacture includes the following steps：
1. the casing part made drawing is tapered, and tapered tip position is cut off, form the ventilation of a 4-8mm
Hole, proper flow of this venthole for the acid solution in pickling operation, to ensure better pickling effect, after pickling operation
Envelope cone operation is carried out, the reserved venthole in tapering is closed；
2. above-mentioned casing is carried out pickling and water washing operations respectively, envelope cone operation is carried out after cleaning, is closed what tapering was reserved
Venthole, and drying operation is carried out, drying process is it is essential to ensure that remaining hydration portion volatilizees totally in casing；
3. selecting suitable plug and to draw bar, rod outer surface will be drawn except the part contacted with sealing element in addition at whole frosteds
Reason later by the two welding fabrication, and ensures that the mandrel component entirety bow degree after welding is less than 0.5mm/m；
4. by mandrel component assembly on sheath assembly；When assembly, by the vertical plug-in-sleeve of mandrel component, core is avoided
Rod assembly is contacted with internal surface of sleeve pipe, prevents the glass surface scar caused by plug and internal surface of sleeve pipe collision, friction；
5. the seat board for sealing vacuumizing assembly is fixed on the card slot of casing tail portion using collet, draw bar and seat board it
Between first seal is installed, will draw bar using rotary nut later is fixed on seat board；
6. water inlet pipe and water outlet water pipe of the installation for supplying cooling circulating water on collet, and the tracheae vacuumized is filled
With in place, vacuum pump is connected on the tracheae vacuumized.
After mandrel component is assembled with casing, by sealed cartridge assembly at the end card slot position of docking tail pipe, then
By with draw the sealing element that bar contacts and assemble, then by for preventing the rotary nut for drawing bar displacement from installing, pay attention to rotary nut
Tension is not rotated, as long as nut top is made to be contacted with bar top is drawn.
The invention assembles packaged tube prefabricated rods by the way that the plug for drawing bar will be welded in advance with casing, especially to drawing
Bar surface has carried out frosted processing, and carries out innovative design to the rotary nut structure for sealing vacuumizing assembly, that is, improves
Fiber cores/concentricity performance parameters, and improve the service life of sealing element, avoid because sealing element scaling loss cause plug with
After vacuum degree declines between casing, impurity or air generate optical fiber string diameter wave caused by a large amount of bubbles into core/packet interface is caused
It is dynamic, cause that product qualification rate is low, fiber strength declines.
A method of carrying out wire drawing using above-mentioned casing prefabricated stick drawn wire device：First by the casing prefabricated stick drawn wire
Device is put into high temperature fiber drawing furnace, is slowly heated up after then starting vacuum pumping pump, and the heating-up time controls in 40-60min, Zhi Houkai
Begin to fall bore, reel off raw silk from cocoons, wire-drawing operation.
After mandrel component is together with sleeve-assembled, then after sealing element and vacuumizing assembly are installed, wire drawing production is carried out.By core
Stick and draw after bar is welded in advance again with sleeve-assembled, fiber cores/concentricity performance parameters can be obviously improved, by that will draw
Bar surface carries out frosted processing except the position of installation sealing element, more commonly draws bar by the luminous intensity for drawing bar radiation of frosted processing
Several times or even tens times can be increased, be greatly lowered draw the radiation-curable of bar part with what sealing element (O-ring) was contacted in this way
Luminous intensity reduces the wind of sealing element high temperature scaling loss so declining obviously with sealing element (O-ring) surface temperature that bar contacts is drawn
Danger, substantially increases the sealing ring service life, it is ensured that device works reliable and stable.
The fixed nut for drawing bar position is subjected to the poroid design of honeycomb, solution high temperature lower seal deformation is can be very good and leads
It causes the defect of vacuum decay in casing to occur, avoids inside air sleeve pipe, lead to produced optical fiber core/packet interface
The problem of bubble causes a large amount of optical fiber to be scrapped.
The foregoing is merely the preferred embodiments of the invention, are not intended to limit the invention creation, all at this
Within the spirit and principle of innovation and creation, any modification, equivalent replacement, improvement and so on should be included in the invention
Protection domain within.
Claims (5)
1. a kind of casing prefabricated stick drawn wire device, it is characterised in that：Including casing and the core group being inserted perpendicularly into casing
Part；The mandrel component is fixed on casing top by sealing vacuumizing assembly；The sealing vacuumizing assembly includes passing through folder
Head is fixed on the seat board on casing top；The mandrel component includes the plug of coaxial welding together and draws bar, plug and casing
The venthole of component lower part is coaxial；It is described draw bar top and stretch out one end of the seat board fixed by rotary nut；Drawing bar and seat
It is equipped with first seal between plate, second seal is equipped between seat board and casing；The vacuum-pumping tube road of the seat board connects
It is connected with vacuum pump；Described to draw the part that bar is contacted with first seal for transparent polished rod, the equal frosted of rest part is handled.
2. a kind of casing prefabricated stick drawn wire device according to claim 1, it is characterised in that：The diameter for drawing bar is less than
The diameter of the plug.
3. a kind of casing prefabricated stick drawn wire device according to claim 1, it is characterised in that：The first seal uses
O-ring.
4. a kind of casing prefabricated stick drawn wire device according to claim 1, it is characterised in that：The rotary nut lower end is set
It is useful for and draws the interconnecting piece that bar is connected and fixed, the upper end of rotary nut is equipped with the honeycomb hole for heat dissipation.
5. a kind of casing prefabricated stick drawn wire device according to claim 1, it is characterised in that：The bar that draws is welded on plug
Upper end, the mandrel component entirety amount of deflection constituted are less than 0.5mm/m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721690666.XU CN208008678U (en) | 2017-12-07 | 2017-12-07 | A kind of casing prefabricated stick drawn wire device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721690666.XU CN208008678U (en) | 2017-12-07 | 2017-12-07 | A kind of casing prefabricated stick drawn wire device |
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| Publication Number | Publication Date |
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| CN208008678U true CN208008678U (en) | 2018-10-26 |
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| CN201721690666.XU Active CN208008678U (en) | 2017-12-07 | 2017-12-07 | A kind of casing prefabricated stick drawn wire device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107915399A (en) * | 2017-12-07 | 2018-04-17 | 通鼎互联信息股份有限公司 | A kind of casing prefabricated stick drawn wire device and its manufacture method and application |
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2017
- 2017-12-07 CN CN201721690666.XU patent/CN208008678U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107915399A (en) * | 2017-12-07 | 2018-04-17 | 通鼎互联信息股份有限公司 | A kind of casing prefabricated stick drawn wire device and its manufacture method and application |
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