CN106242263B - On-line weighting system suitable for OVD techniques - Google Patents
On-line weighting system suitable for OVD techniques Download PDFInfo
- Publication number
- CN106242263B CN106242263B CN201610860755.8A CN201610860755A CN106242263B CN 106242263 B CN106242263 B CN 106242263B CN 201610860755 A CN201610860755 A CN 201610860755A CN 106242263 B CN106242263 B CN 106242263B
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- China
- Prior art keywords
- connect
- pedestal
- powder stick
- lower collet
- stick
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 239000000843 powder Substances 0.000 claims abstract description 61
- 230000007246 mechanism Effects 0.000 claims abstract description 43
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000005303 weighing Methods 0.000 claims abstract description 22
- 238000000151 deposition Methods 0.000 description 7
- 230000008021 deposition Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000001186 cumulative effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000005137 deposition process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000029052 metamorphosis Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
- C03B37/018—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD] by glass deposition on a glass substrate, e.g. by inside-, modified-, plasma-, or plasma modified- chemical vapour deposition [ICVD, MCVD, PCVD, PMCVD], i.e. by thin layer coating on the inside or outside of a glass tube or on a glass rod
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G17/00—Apparatus for or methods of weighing material of special form or property
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geochemistry & Mineralogy (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
The invention discloses a kind of on-line weighting systems suitable for OVD techniques, including upper grip mechanism, lower supporting mechanism, weighing unit；Upper grip mechanism include pedestal, linear slide rail, connect with powder stick upper end stick upper grip；The lower end of stick upper grip and rotary shaft is connected, the upper end of rotary shaft is connect by horizontal bearing, trunnion axis bearing with weighing unit, and rotary shaft is externally provided with rotary sleeve pipe；Rotary sleeve pipe is connect by linear slide rail with pedestal；The cavity wall of pedestal and deposit cavity connects；Lower supporting mechanism includes the lower collet pedestal being connect with the bottom plate of deposit cavity, is placed in the lower collet elastomeric element of powder stick lower end surrounding；Lower collet elastomeric element is connect by bindiny mechanism with lower collet pedestal.The present invention makes function of weighing and itself rotary motion of powder stick not interfere with each other, and has not only kept powder stick to have higher running accuracy, but also can measure the weight of the powder stick of rotation precisely in real time.
Description
Technical field
The present invention relates to a kind of on-line weighting systems suitable for OVD techniques, belong to apparatus for preparing optical fiber blanks technology neck
Domain.
Background technology
In preform manufacturing field, generally use OVD（Outside Vapor Deposition）Technique manufactures light
The surrounding layer of fine prefabricated rods, it is not high to index requests such as raw material water peak, purity due to its deposition efficiency height, thus got over
To be more widely applied.The depositing device of OVD techniques can generally be divided into axis horizontal arrangement and axis vertical arranges two kinds
Structure type.For the latter, since axis vertical is arranged, in deposition process, as the diameter of powder stick is increasing, gravity pair
The influence of prefabricated rods axis is big not as axis horizontal advancing equipment, can slightly cause very much prefabricated rods without worrying that prefabricated rods are too long
Axis flexing deforms or powder stick causes very much powder stick to be broken again, so this mode arranged vertically is easier to production length and diameter
The prefabricated powder stick of super large is deposited the quantity of lamp cap by increase, is remarkably improved the deposition rate of equipment.It is adopted in OVD techniques
Plug is typically by VAD process deposits, sintering and by stretching.For determining the VAD plugs of specification, items ginseng
Number has determined the diameter or weight for the OVD process deposits prefabricated rod claddings that will be carried out.This means that in OVD technique productions
In the process, we must monitor the cumulative weight of prefabricated rods deposition in real time with the end time of accurate determining deposition, only in this way
We, which can just produce, meets prefabricated rods of the core packet than setting value.There is no real time monitoring prefabricated rods are heavy in existing OVD techniques
The device of product cumulative weight, operator can only rule of thumb determine that prefabricated rods deposit cumulative weight, this is bound to cause production
The core packet gone out cannot meet prefabricated rods of the core packet than setting value.
Invention content
The purpose of the present invention is to provide a kind of on-line weighting system suitable for OVD techniques, which can accurately in real time
Measure-axis weight.
Powder stick weight precisely in real time in order to obtain, it is necessary to assure powder stick vertical gravity direction have it is complete freely
Without constraint, that is to say, that, all cannot be vertical with the relevant rotary supporting part of powder stick, collet etc. in addition to the weight of powder stick itself
There is the supporting role of any structure to powder stick；For the rotation of powder stick, we must provide powder stick stable week
To support, rotation of the powder stick with degree of precision just can guarantee, be just avoided that rotational symmetry weight does not generate interference in this way, ensure to weigh
As a result accuracy.The present invention gets up single-point type weighing sensor and Mandrel Rotating mechanisms in series, it is ensured that weighs and rotates
Function can normally work, and powder stick is designed as to vertical relocation mechanism, and the supporting mechanism of circumference is increased for powder stick.
The technical solution adopted in the present invention is：
A kind of on-line weighting system suitable for OVD techniques includes the upper grip mechanism being connect with powder stick, support powder stick
Lower supporting mechanism, the weighing unit being connect with upper grip mechanism；
The upper grip mechanism include pedestal, linear slide rail, connect with powder stick upper end stick upper grip；Stick upper grip
It is connect with the lower end of rotary shaft, rotary shaft is externally provided with rotary sleeve pipe, and the upper end of rotary shaft passes through horizontal bearing, trunnion axis bearing
It is connect with weighing unit；Rotary sleeve pipe is connect by linear slide rail with pedestal；The cavity wall of pedestal and deposit cavity connects；
The lower supporting mechanism includes the lower collet pedestal being connect with the bottom plate of deposit cavity, is placed under the surrounding of powder stick lower end
Collet elastomeric element；Lower collet elastomeric element is connect by bindiny mechanism with lower collet pedestal；When the lower end of powder stick is inserted into lower
When the lower collet elastomeric element of support mechanism, pass through the radial direction and circumferential direction of the slight compressive deformation unbound powder stick of lower collet elastomeric element
Shaking, but do not influence the weight transmitting of powder stick to weighing unit, while can by the metamorphosis of lower collet elastomeric element
To protect powder stick when lower supporting mechanism is surprisingly blocked and cannot normally be rotated, it is unlikely to that powder stick is made to twist off.
By said program, the lower collet elastomeric element is the multiple linear shrapnels being arranged in bindiny mechanism, linear bullet
One end of piece is fixed in bindiny mechanism, and the other end is fixed after passing through the hole in bindiny mechanism by axis pin.
By said program, the bindiny mechanism includes lower collet axis, thread bush, and the top of the lower collet axis is with recessed
The lower part of slot, lower collet axis is placed in thread bush, and lower collet axis and thread bush realize rotation and lifting by rotating nuts.
By said program, lower collet axis lower end is equipped with axle sleeve, and lower collet axis is connect with axle sleeve by upper and lower two ball bearings；
Axle sleeve is placed in thread bush, and axle sleeve and thread bush realize rotation and lifting by rotating nuts, to realize the lifting of lower collet axis.
By said program, the weighing unit uses single-point type weighing sensor.
By said program, rotary shaft is connect by upper and lower two ball bearings with rotary sleeve pipe.
The beneficial effects of the present invention are：
The present invention incorporates weighing system and rotary drive system in one structural system, make function of weighing and powder stick from
Body rotary motion does not interfere with each other, and has not only kept powder stick to have higher running accuracy, but also can measure the powder of rotation precisely in real time
The weight of stick；
The free state of powder stick and linear slide rail parallel direction is realized by using the connection type of linear slide rail, simultaneously
The degree of freedom for constraining other directions keeps whole device more stable, steady；
Weighing structure is ensured using the axis arrangement of single-point type weighing sensor, horizontal bearing and upper and lower two ball bearing
Accurate reliability；
Using the supporting way for arranging elastomeric element in powder stick lower circumferential as auxiliary support structure, powder stick can be made to obtain
Relatively stable radial direction and circumferential constraint, while can prevent powder stick from being twisted off since lower supporting mechanism blocks；Also prefabricated rods be can avoid
Axis flexing deforms.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing：
Fig. 1 is the OVD depositing device structural schematic diagrams arranged vertically；
Fig. 2 is the structural schematic diagram for the on-line weighting system that the present invention is suitable for OVD techniques；
Fig. 3 is the attachment structure schematic diagram of lower collet elastomeric element and lower collet axis.
In figure：1, OVD process deposits powder stick, 2, upper grip mechanism, 3, deposit cavity, 4, burners set, 5, lower supporting mechanism, 6,
Exhaust column, 7, pedestal, 8, linear slide rail, 9, single-point type weighing unit, 10, horizontal bearing, 11, trunnion axis bearing, 12, synchronous belt
Wheel, 13, ball bearing, 14, rotary shaft, 15, rotary sleeve pipe, 16, stick upper grip, 17, lower collet elastomeric element, 18, lower folder
Head axis, 20, axle sleeve, 21, rotating nuts, 22, thread bush, 23, lower collet pedestal.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
Referring to Fig. 1-3, a kind of on-line weighting system suitable for OVD techniques, including connect with OVD process deposits powder stick 1
Upper grip mechanism 2, the lower supporting mechanism 5 of support OVD process deposits powder stick 1, the single-point type that is connect with upper grip mechanism 2 weigh
Unit 9.
Upper grip mechanism 2 include pedestal 7, linear slide rail 8, connect with 1 upper end of OVD process deposits powder stick stick upper grip
16；Stick upper grip 16 is connect by flange with the lower end of rotary shaft 14；The upper end of rotary shaft 14 passes through horizontal bearing 10, level
Bearing block 11 is connect with single-point type weighing unit 9；The upper and lower ends of rotary shaft 14 are being revolved by the way that two ball bearings 13 are radially fixed
Turn the inner cavity of outer tube 15；Rotary sleeve pipe 15 is connect by linear slide rail 8 with pedestal 7；Pedestal 7 and the cavity wall of deposit cavity 3 connect
It connects；Synchronous pulley 12 is installed in one end of rotary shaft 14, drives OVD process deposits powder sticks 1 with certain by synchronous pulley 12
Speed rotate.1 one side of OVD process deposits powder stick is connected with pedestal 7 by linear slide rail 8 by rotary sleeve pipe 15
It connects, is on the other hand connected in a hanging manner with single-point type weighing unit 9 by horizontal bearing 10 and trunnion axis bearing 11,
The weight of OVD process deposits powder stick 1 and each component of rotation driving so is all passed by horizontal bearing 10 and trunnion axis bearing 11
Weighing unit has been passed, the accurate reliability of weight, the company of linear slide rail are ensure that by the connection of linear slide rail 8 and pedestal 7
The mode of connecing ensure that the rotational stabilization of powder stick.
Lower supporting mechanism 5 includes the lower collet pedestal 23 being connect with the bottom plate of deposit cavity 3, is placed in OVD process deposits powder stick 1
The lower collet elastomeric element 17 of lower end surrounding；Lower collet elastomeric element 17 is connect by bindiny mechanism with lower collet pedestal 23.Even
Connection mechanism includes lower collet axis 18, axle sleeve 20, thread bush 22, and the top band of lower collet axis 18 is fluted, under lower collet axis 18
Portion is placed in axle sleeve 20, and is connected by upper and lower two ball bearings 13, to realize the radially fixed of lower collet axis 18；Axle sleeve 20 is set
In in thread bush 22, axle sleeve 20 and thread bush 22 realize rotation and lifting by rotating nuts 21, to realize lower collet axis 18
Lifting, to facilitate installing for OVD process deposits powder stick 1.Lower collet elastomeric element 17 is uniformly distributed in the recessed of lower collet axis 18
Multiple linear shrapnels on slot, one end of linear shrapnel are fixed on lower collet axis 18, and the other end passes through on lower collet axis 18
It is fixed by axis pin behind hole.Lower supporting mechanism 5 can ensure the free without constraint of OVD process deposits powder stick 1 in a vertical direction, simultaneously
Radial support is reliably without shaking, with the rotation for obtaining the stabilization of OVD process deposits powder stick 1 and accurate weighing results.
Referring to Fig. 1, in deposition process, operating pressure certain in deposit cavity 3, upper grip machine are maintained by exhaust column 6
The upper end of the suspention clamping OVD process deposits powder of structure 2 stick 1, the circumferential lower end for constraining OVD process deposits powder stick 1 of lower supporting mechanism 5,
OVD process deposits powder stick 1 is rotated with certain speed around the axis of itself, and raw material and fuel are passed through burner flame by burners set 4
It is ejected into OVD process deposits powder stick 1 and is attached to its surface, the diameter of OVD process deposits powder stick 1 is more next over time
It is bigger；Meanwhile burners set 4 is slowly moved to the direction far from 1 axis of OVD process deposits powder stick with suitable under the driving of lamp bracket
Answer the 1 increased variation of diameter of OVD process deposits powder stick.
In the present invention, horizontal bearing, rotary shaft, stick upper grip, powder stick, lower collet axis central axes in same straight line
On, with the stabilization of maintenance whole device.
The present invention weighing unit be by weighing in conjunction with relevant guiding mechanism using single-point type weighing sensor
It unites and is blended with the rotary system of powder mandrel line, make equipment while carrying out OVD process deposits, powder stick packet can be measured in real time
The deposited obtained accurate weight of layer.The present invention can also end automatically OVD deposition flows, and flame-out shutdown by the weight.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (3)
1. a kind of on-line weighting system suitable for OVD techniques, it is characterised in that：Include the upper grip mechanism being connect with powder stick,
The lower supporting mechanism for supporting powder stick, the weighing unit being connect with upper grip mechanism；
The upper grip mechanism include pedestal, linear slide rail, connect with powder stick upper end stick upper grip；Stick upper grip and rotation
The lower end of shaft connects, and rotary shaft is externally provided with rotary sleeve pipe, and the upper end of rotary shaft by horizontal bearing, trunnion axis bearing and claims
Weight unit connection；Rotary sleeve pipe is connect by linear slide rail with pedestal；The cavity wall of pedestal and deposit cavity connects；
The lower supporting mechanism includes the lower collet pedestal being connect with the bottom plate of deposit cavity, the lower collet for being placed in powder stick lower end surrounding
Elastomeric element；Lower collet elastomeric element is connect by bindiny mechanism with lower collet pedestal.
2. on-line weighting system according to claim 1, it is characterised in that：The lower collet elastomeric element is setting even
Multiple linear shrapnels on connection mechanism, one end of linear shrapnel are fixed in bindiny mechanism, and the other end passes through in bindiny mechanism
It is fixed by axis pin behind hole.
3. on-line weighting system according to claim 1 or 2, it is characterised in that：The bindiny mechanism include lower collet axis,
The top band of thread bush, the lower collet axis is fluted, and the lower part of lower collet axis is placed in thread bush, lower collet axis and thread bush
Rotation and lifting is realized by rotating nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610860755.8A CN106242263B (en) | 2016-09-28 | 2016-09-28 | On-line weighting system suitable for OVD techniques |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610860755.8A CN106242263B (en) | 2016-09-28 | 2016-09-28 | On-line weighting system suitable for OVD techniques |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106242263A CN106242263A (en) | 2016-12-21 |
| CN106242263B true CN106242263B (en) | 2018-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610860755.8A Active CN106242263B (en) | 2016-09-28 | 2016-09-28 | On-line weighting system suitable for OVD techniques |
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| Country | Link |
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| CN (1) | CN106242263B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412875B (en) * | 2019-01-08 | 2024-04-09 | 中天科技精密材料有限公司 | Preform detection equipment |
| CN113716860A (en) * | 2021-09-15 | 2021-11-30 | 杭州金星通光纤科技有限公司 | Device and method for depositing optical fiber preform by longitudinal OVD (optical vapor deposition) process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1401827A (en) * | 2002-09-26 | 2003-03-12 | 西安理工大学 | Artificial crystal weighing device |
| CN1646439A (en) * | 2002-07-31 | 2005-07-27 | 皮雷利&C.有限公司 | Instrument and method for weighing pre-formed part during chemically depositing optical fiber pre-formed part |
| CN103630216A (en) * | 2012-08-27 | 2014-03-12 | 浙江富通光纤技术有限公司 | Dynamic weighing system for horizontal powder deposition |
| CN204514443U (en) * | 2014-11-26 | 2015-07-29 | 浙江财经大学 | A kind of rotation LOAD CELLS |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3191548B2 (en) * | 1994-02-04 | 2001-07-23 | 日立電線株式会社 | Preform rod manufacturing equipment |
-
2016
- 2016-09-28 CN CN201610860755.8A patent/CN106242263B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1646439A (en) * | 2002-07-31 | 2005-07-27 | 皮雷利&C.有限公司 | Instrument and method for weighing pre-formed part during chemically depositing optical fiber pre-formed part |
| CN1401827A (en) * | 2002-09-26 | 2003-03-12 | 西安理工大学 | Artificial crystal weighing device |
| CN103630216A (en) * | 2012-08-27 | 2014-03-12 | 浙江富通光纤技术有限公司 | Dynamic weighing system for horizontal powder deposition |
| CN204514443U (en) * | 2014-11-26 | 2015-07-29 | 浙江财经大学 | A kind of rotation LOAD CELLS |
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| Publication number | Publication date |
|---|---|
| CN106242263A (en) | 2016-12-21 |
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