CN105198203A - Openable heating furnace for drawing optical fiber taper - Google Patents
Openable heating furnace for drawing optical fiber taper Download PDFInfo
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- CN105198203A CN105198203A CN201510600219.XA CN201510600219A CN105198203A CN 105198203 A CN105198203 A CN 105198203A CN 201510600219 A CN201510600219 A CN 201510600219A CN 105198203 A CN105198203 A CN 105198203A
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Abstract
The invention discloses an openable heating furnace for drawing an optical fiber taper. The openable heating furnace for drawing the optical fiber taper comprises a furnace body, the furnace body is internally provided with a furnace chamber which allows a workpiece to be put into, the portion, located on the position of the furnace chamber, of the furnace body is divided into at least two openable furnace body units, each furnace body unit comprises a furnace stack and a heating part arranged in the furnace stack, each heating part comprises multiple electric heating pieces which are sequentially arranged along the furnace chamber, the electric heating pieces are bent to form a bending section which can winds around the outer side of the workpiece in the furnace chamber, and the two ends of each electric heating piece are connected with a power supply. According to the openable heating furnace for drawing the optical fiber taper, when assembly is completed, the furnace body is opened, the workpiece can be put into the furnace chamber, the electric heating pieces are adjusted to make the electric heating pieces in the center of the furnace chamber aligned to the center of the workpiece and make the electric heating pieces on the two sides located on appropriate positions, the temperature area width for product processing is met, the furnace body is closed, the power supply is started, and heating can be conducted on the product. In the heating process, the heating and drawing situations of the product can be observed by opening the furnace, and timely finding of the problems occurring in the product processing process is facilitated.
Description
Technical field
The present invention is used for optical taper manufacture technology field, particularly relates to a kind of openable optical taper drawing furnace.
Background technology
Optical taper is that develop on the basis of optical fibre face plate a kind of has the fibre optic image transmission element zooming in or out and pass as function.This product is mainly used in being coupled with photoelectric devices such as CCD or CMOS making high-resolution image sensor, is one of core parts of digitizing Low-light Level Night Vision Technology.It has, and volume is little, structure is simply firm, coupling efficiency advantages of higher.
Optical taper is formed through again heating drawing by optical fibre face plate, and drawing is the critical process in optical taper production technique.At present, the process furnace that drawing optical fiber cone adopts is a kind of tubular type gradient temperature field resistance furnace, and the general structure of this kind of electric furnace is: adopt tubular fire material (generally adopting porcelain tube) as boiler tube; Then on boiler tube, produce shape of threads fire door for being wound around nichrome wire, the mode of the winding of employing multistage, observing and controlling temperature respectively realizes the gradient temperature field needed for optical taper drawing; Fill insulant material between boiler tube and furnace shell; The cover plate at stove two ends is utilized to position boiler tube.
At present, there is following problem and shortage in the tubular type gradient temperature field resistance furnace that drawing optical fiber cone adopts:
1, heating wire winding is at outer surface of furnace tube, and the heat that nichrome wire sends first burns boiler tube red, then pair is mapped on workpiece.Because the wall thickness of boiler tube is usually at more than 10mm, and thermal conductivity ratio air is much bigger, and therefore under the conductive force of furnace tube material, the high-temperature area width of boiler tube is more difficult to be controlled in little scope, is unfavorable for the drawing of large pantograph ratio and miniature fiber cone.
2, need during workpiece loading and unloading first to move by one end by stove, stove is moved the other end by the other end workpiece loading and unloading after having loaded and unloaded one end, it is very inconvenient to operate again.
3, pulling process cannot observe the shaping situation of workpiece, is unfavorable for the adjustment of drawing process.
4, after the process furnace of this structure completes making, relevant structure unit is just all fixing, and unadjustable, particularly the adjustment of heater strip position and boiler tube width needs customize corresponding boiler tube and ressemble, it is very inconvenient to operate, simultaneously poor to the Technological adaptability of different fiber cone drawing.
Summary of the invention
For solving the problem, the invention provides a kind of for optical taper draw open, warm area is adjustable, stove footpath size be convenient to change openable optical taper drawing furnace.
The technical solution adopted for the present invention to solve the technical problems is: a kind of openable optical taper drawing furnace, comprise body of heater, there is in body of heater the furnace chamber can inserted for workpiece, body of heater is divided at least two openable body of heater unit in furnace chamber position, described body of heater unit comprises shaft and is located at the heater block in described shaft, described heater block comprises some electric heating pieces set gradually along described furnace chamber, described electric heating piece is by being bent to form the bending section that can surround in furnace chamber outside workpiece, and the two ends of each described electric heating piece are connected with power supply.
Be further used as the improvement of technical solution of the present invention, described shaft comprises base plate and is located at the apron plate on described base plate, rear backplate, left backplate and right backplate, support backplate furnace chamber and shaft separated is provided with between described apron plate and rear backplate, be provided with fire door plate at the two ends of described support backplate, each described electric heating piece is all positioned between the fire door plate at support backplate two ends.
Be further used as the improvement of technical solution of the present invention, described support backplate is provided with lagging material, electric heating piece and support backplate, electric heating piece and fire door plate can be separated by described lagging material.
Be further used as the improvement of technical solution of the present invention, described body of heater unit arranges two, two body of heater unit are by being positioned at the chain connection on left backplate, two body of heater unit can be opened around described hinge or close, described support backplate is semi-circular cylindrical, and described fire door plate is provided with the fire door can inserted for workpiece in furnace chamber.
Be further used as the improvement of technical solution of the present invention, described shaft inherence supports corresponding each electric heating piece between backplate and base plate and arranges supporting seat, described supporting seat is provided with electric heating piece fixed block in the both sides supporting backplate, and described electric heating piece is all fixedly mounted on described electric heating piece fixed block across described support backplate.
Be further used as the improvement of technical solution of the present invention, described electric heating piece comprises and is positioned at the secondary electric heating piece that main electric heating piece in the middle part of furnace chamber and two panels are symmetrically distributed in described main electric heating piece both sides, described supporting seat comprise support the main supporting seat of main electric heating piece and two be symmetrically distributed in main supporting seat both sides to support the secondary supporting seat of secondary electric heating piece, described shaft is provided with the regulating mechanism of the secondary electric heating piece of adjustable two panels and main electric heating piece spacing.
Be further used as the improvement of technical solution of the present invention, described regulating mechanism comprises the adjusting screw(rod) be contained between described apron plate and rear backplate, described adjusting screw(rod) has plus thread section and left-hand thread section, secondary supporting seat on front side of main supporting seat is contained in plus thread section, secondary supporting seat on rear side of main supporting seat is contained in left-hand thread section, rotate the distance of the secondary supporting seat in the adjustable both sides of adjusting screw(rod) from main supporting seat, two secondary supporting seats are equipped with pointer, described right backplate is offered the guide groove stretched out for pointer, the outside of right backplate is provided with the scale along guide groove direction.
Be further used as the improvement of technical solution of the present invention, described secondary supporting seat is equipped with contiguous block, described fire door plate has the edge of a wing extending and support between backplate and base plate, and described fire door plate is fixedly connected on contiguous block by the edge of a wing, and fire door plate can seesaw along supporting backplate with secondary supporting seat.
Be further used as the improvement of technical solution of the present invention, described main supporting seat and at least one secondary supporting seat are provided with the thermopair protruded upward.
Be further used as the improvement of technical solution of the present invention, described electric heating piece fixed block is insulating ceramic, and each described electric heating piece is all connected with independently power supply.
Beneficial effect of the present invention: after erection of the present invention completes, open body of heater, can workpiece be installed in furnace chamber, adjustment electric heating piece makes the center of the electric heating piece alignment pieces at furnace chamber center, the electric heating piece of both sides is made to be positioned at suitable position, meet the warm area width of Product processing, close body of heater, and starting power supply can heat product.Can open in heat-processed heating and the pulled out condition that product observed by stove, be conducive to Timeliness coverage product processing produced problem.
The present invention has following characteristics relative to prior art:
1. the furnace binding of open-type is the clamping of workpiece, contraposition, the observation of the course of processing, dismounting etc. after processing provide great convenience, is conducive to the control to light cone stretching quality;
2. relative to original tubular type stove, block without objects such as porcelain tubes between electric heating piece of the present invention and workpiece, heat acts directly on workpiece, heating efficiency is high, by regulating the distance between electric heating piece and workpiece, the temperature field of larger thermograde can be realized on workpiece, thus the optical taper product of steep-taper can be produced;
3. discovery and the maintenance of the faults such as the present invention is openable Open architecture, aging, the fusing of electric heating piece are all very convenient.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is overall schematic of the present invention;
Fig. 2 is regulating mechanism axis of no-feathering mapping of the present invention;
Fig. 3 is regulating mechanism structure vertical view of the present invention.
Embodiment
Referring to figs. 1 through Fig. 3, that show the concrete structure of the preferred embodiment of the present invention.To the constructional feature of the present invention each element be described in detail below, and if be described to direction (upper and lower, left and right, before and after) time, be to scheme the structure shown in Fig. 1 for reference to describing, but actual user of the present invention is to being not limited thereto.
The invention provides a kind of openable optical taper drawing furnace, comprise body of heater, there is in body of heater the furnace chamber can inserted for workpiece, body of heater is divided into two openable body of heater unit 1 in furnace chamber position, two body of heater unit 1 are connected through the hinge, two body of heater unit 1 can be opened around described hinge or close, the heater block that described body of heater unit 1 comprises shaft 11 and is located in described shaft 11, described heater block comprises some electric heating pieces set gradually along described furnace chamber, described electric heating piece is by being bent to form the bending section that can surround in furnace chamber outside workpiece 2, electric heating piece entirety is in " M " shape, electric heating piece adopts the bandlet of the electrical heating alloyss such as ferrum-chromium-aluminum to make, the two ends of each described electric heating piece are connected with power supply.
The apron plate 112 that described shaft 11 comprises base plate 111 and is located on described base plate 111, rear backplate 113, left backplate 114 and right backplate 115, the support backplate 12 furnace chamber and shaft 11 separated is provided with between described apron plate 112 and rear backplate 113, described support backplate 12 is in semi-circular cylindrical, fire door plate 13 is provided with at the two ends of described support backplate 12, each described electric heating piece is all positioned between the fire door plate 13 at support backplate 12 two ends, described fire door plate 13 is provided with the fire door can inserted for workpiece 2 in furnace chamber, can according to the size of processing work 2 product, make the furnace port diameter within 200mm.
Described support backplate 12 is provided with lagging material 10, and electric heating piece and support backplate 12, electric heating piece and fire door plate 13 can be separated by described lagging material 10, in the present invention, lagging material 10 is preferably insulating brick.
Described shaft 11 inherence supports corresponding each electric heating piece between backplate 12 and base plate 111 and arranges supporting seat, described supporting seat is provided with electric heating piece fixed block 14 in the both sides supporting backplate 12, described electric heating piece fixed block 14 is insulating ceramic, and described electric heating piece is all fixedly mounted on described electric heating piece fixed block 14 across described support backplate 12.Described electric heating piece comprises and is positioned at the secondary electric heating piece 16 that main electric heating piece 15 in the middle part of furnace chamber and two panels are symmetrically distributed in described main electric heating piece 15 both sides, and each described electric heating piece is all connected with independently power supply, and the independence realizing main electric heating piece 15 and secondary electric heating piece 16 temperature controls.The bending section diameter of electric heating piece and the equal diameters of fire door plate 13 fire door, the width of electric heating piece can design at 5 ~ 30mm, by the selection of electric heating piece width, and the position adjustments of the secondary electric heating piece 16 in both sides, high-temperature zone can be controlled in 5 ~ 3100mm, is suitable for the requirement of variant production to warm area.
Described supporting seat comprise the main supporting seat 17 that supports main electric heating piece 15 and two be symmetrically distributed in main supporting seat 17 both sides to support the secondary supporting seat 18 of secondary electric heating piece 16, described shaft 11 is provided with the regulating mechanism of the secondary electric heating piece 16 of adjustable two panels and main electric heating piece 15 spacing.Described regulating mechanism comprises the adjusting screw(rod) 31 be contained between described apron plate 112 and rear backplate 113, described adjusting screw(rod) 31 has plus thread section and left-hand thread section, secondary supporting seat on front side of main supporting seat 17 fills 18 in plus thread section, secondary supporting seat 18 on rear side of main supporting seat 17 is contained in left-hand thread section, rotate the distance of the secondary supporting seat 18 in the adjustable both sides of adjusting screw(rod) 31 from main supporting seat 17, two secondary supporting seats 18 are equipped with pointer 19, described right backplate 115 is offered the guide groove 116 stretched out for pointer 19, the outside of right backplate 115 is provided with the scale 117 along guide groove 116 direction.By regulating the secondary electric heating piece 16 in the adjustable both sides of adjusting screw(rod) 31 from the distance of main electric heating piece 15, this distance is monitored by pointer 19 and scale 117.
Described secondary supporting seat 18 is equipped with contiguous block 181, described fire door plate 13 has the edge of a wing extending and support between backplate 12 and base plate 111, fire door plate 13 is " M " shaped steel plate, described fire door plate 13 is fixedly connected on contiguous block 181 by the edge of a wing, and the distance between fire door plate 13 from both sides electric heating piece regulates by connecting different positions, hole.Fire door plate 13 can seesaw along supporting backplate 12 with secondary supporting seat 18.By the position of the adjustable fire door plate of adjusting screw(rod) 31, realize the adjustment to furnace widths.
Described main supporting seat 17 and at least one secondary supporting seat 18 are provided with the thermopair 32 protruded upward.Thermopair 32 reaches the position of distance electric heating piece 3 ~ 5mm, wherein containing two thermopairs 32, respectively at central position and two side positions, measures the temperature of stove center and both sides.
In the present invention, the warm field of furnace chamber is radial and axial all conveniently adjusted:
In axis: the distance between secondary electric heating piece 16 and main electric heating piece 15 is carried out convenience by adjusting screw(rod) 31 and regulated, this function is that the technological test of optical taper provides great convenience, the conicity regulation that then can realize in certain limit by regulating this spacing, what adapt to dissimilar optical taper draws cone requirement.The product larger to stretching distance, different stove temperature field width degree when this function can also realize stretching and after stretching, thus effectively solve after optical taper two ends stretch and to decline the comparatively fast problem that bursts caused due to temperature;
In radial direction: electric heating piece is adopted between the bandlet of the thermo electric materials such as ferrum-chromium-aluminum and processed by method, this materials processing and convenient formation; Produce the electric heating piece of several groups of differently curved radiuses, when needed by changing electric heating piece, then stove can be made to be applicable to the drawing of various outer diameter product, greatly extend the product size work range of stove;
After body of heater erection is completed, open body of heater, can workpiece 2 be installed in furnace chamber, the center of main electric heating piece 15 alignment pieces at adjustment electric heating piece Shi Lu center, rotate adjusting screw(rod) 31, make the secondary electric heating piece 16 of both sides be positioned at suitable position, meet the warm area width that workpiece 2 is processed, close body of heater, and starting power supply can heat workpiece 2.Can open in heat-processed heating and the pulled out condition that body of heater observes workpiece 2, be conducive to Timeliness coverage product processing produced problem.
The present invention is that one can be opened, optical taper drawing furnace easy to use, the length of stove can regulate between 60mm ~ 200mm, furnace port diameter can regulate within 200mm, the temperature be suitable within 1000 DEG C uses, temperature control precision, at ± 1 DEG C, by the width regulating the position of the secondary electric heating piece of the width of electric heating piece and both sides to adjust high-temperature zone, is applicable to the demand of various warm area.
Certainly, the invention is not limited to above-mentioned embodiment, those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite without prejudice to spirit of the present invention, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (10)
1. an openable optical taper drawing furnace, it is characterized in that: comprise body of heater, there is in body of heater the furnace chamber can inserted for workpiece, body of heater is divided at least two openable body of heater unit in furnace chamber position, described body of heater unit comprises shaft and is located at the heater block in described shaft, described heater block comprises some electric heating pieces set gradually along described furnace chamber, described electric heating piece is by being bent to form the bending section that can surround in furnace chamber outside workpiece, and the two ends of each described electric heating piece are connected with power supply.
2. openable optical taper drawing furnace according to claim 1, it is characterized in that: described shaft comprises base plate and is located at the apron plate on described base plate, rear backplate, left backplate and right backplate, support backplate furnace chamber and shaft separated is provided with between described apron plate and rear backplate, be provided with fire door plate at the two ends of described support backplate, each described electric heating piece is all positioned between the fire door plate at support backplate two ends.
3. openable optical taper drawing furnace according to claim 2, is characterized in that: described support backplate is provided with lagging material, electric heating piece and support backplate, electric heating piece and fire door plate can be separated by described lagging material.
4. openable optical taper drawing furnace according to claim 2, it is characterized in that: described body of heater unit arranges two, two body of heater unit are by being positioned at the chain connection on left backplate, two body of heater unit can be opened around described hinge or close, described support backplate is semi-circular cylindrical, and described fire door plate is provided with the fire door can inserted for workpiece in furnace chamber.
5. the openable optical taper drawing furnace according to claim 2,3 or 4, it is characterized in that: described shaft inherence supports corresponding each electric heating piece between backplate and base plate and arranges supporting seat, described supporting seat is provided with electric heating piece fixed block in the both sides supporting backplate, and described electric heating piece is all fixedly mounted on described electric heating piece fixed block across described support backplate.
6. openable optical taper drawing furnace according to claim 5, it is characterized in that: described electric heating piece comprises and is positioned at the secondary electric heating piece that main electric heating piece in the middle part of furnace chamber and two panels are symmetrically distributed in described main electric heating piece both sides, described supporting seat comprise support the main supporting seat of main electric heating piece and two be symmetrically distributed in main supporting seat both sides to support the secondary supporting seat of secondary electric heating piece, described shaft is provided with the regulating mechanism of the secondary electric heating piece of adjustable two panels and main electric heating piece spacing.
7. openable optical taper drawing furnace according to claim 6, it is characterized in that: described regulating mechanism comprises the adjusting screw(rod) be contained between described apron plate and rear backplate, described adjusting screw(rod) has plus thread section and left-hand thread section, secondary supporting seat on front side of main supporting seat is contained in plus thread section, secondary supporting seat on rear side of main supporting seat is contained in left-hand thread section, rotate the distance of the secondary supporting seat in the adjustable both sides of adjusting screw(rod) from main supporting seat, two secondary supporting seats are equipped with pointer, described right backplate is offered the guide groove stretched out for pointer, the outside of right backplate is provided with the scale along guide groove direction.
8. openable optical taper drawing furnace according to claim 7, it is characterized in that: described secondary supporting seat is equipped with contiguous block, described fire door plate has the edge of a wing extending and support between backplate and base plate, described fire door plate is fixedly connected on contiguous block by the edge of a wing, and fire door plate can seesaw along supporting backplate with secondary supporting seat.
9. openable optical taper drawing furnace according to claim 6, is characterized in that: described main supporting seat and at least one secondary supporting seat are provided with the thermopair protruded upward.
10. openable optical taper drawing furnace according to claim 5, is characterized in that: described electric heating piece fixed block is insulating ceramic, and each described electric heating piece is all connected with independently power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510600219.XA CN105198203B (en) | 2015-09-18 | 2015-09-18 | A kind of openable optical taper drawing furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510600219.XA CN105198203B (en) | 2015-09-18 | 2015-09-18 | A kind of openable optical taper drawing furnace |
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| CN105198203A true CN105198203A (en) | 2015-12-30 |
| CN105198203B CN105198203B (en) | 2017-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510600219.XA Active CN105198203B (en) | 2015-09-18 | 2015-09-18 | A kind of openable optical taper drawing furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111777324A (en) * | 2020-07-09 | 2020-10-16 | 中国建筑材料科学研究总院有限公司 | Heating furnace, optical fiber tapering method, product prepared by method and application of product |
| CN115959824A (en) * | 2022-12-22 | 2023-04-14 | 长飞光纤光缆股份有限公司 | Glass fiber preparation equipment and method and quartz image transmission optical fiber preparation method |
Citations (4)
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| CN2318590Y (en) * | 1997-11-06 | 1999-05-12 | 李恒民 | Furnace-body open type heating furnace |
| CN200996030Y (en) * | 2006-11-29 | 2007-12-26 | 中国第一重型机械集团公司 | Large vertical single-sided collapsible heat-treatment furnace |
| CN102277614A (en) * | 2011-05-25 | 2011-12-14 | 哈尔滨工业大学 | Miniature heating furnace apparatus used for manufacturing fused taper polarizer |
| CN202734530U (en) * | 2012-06-28 | 2013-02-13 | 武汉市汉泰斯特科技有限公司 | Openable cylindrical high-power and high-temperature electric furnace for laboratory |
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2015
- 2015-09-18 CN CN201510600219.XA patent/CN105198203B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2318590Y (en) * | 1997-11-06 | 1999-05-12 | 李恒民 | Furnace-body open type heating furnace |
| CN200996030Y (en) * | 2006-11-29 | 2007-12-26 | 中国第一重型机械集团公司 | Large vertical single-sided collapsible heat-treatment furnace |
| CN102277614A (en) * | 2011-05-25 | 2011-12-14 | 哈尔滨工业大学 | Miniature heating furnace apparatus used for manufacturing fused taper polarizer |
| CN202734530U (en) * | 2012-06-28 | 2013-02-13 | 武汉市汉泰斯特科技有限公司 | Openable cylindrical high-power and high-temperature electric furnace for laboratory |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111777324A (en) * | 2020-07-09 | 2020-10-16 | 中国建筑材料科学研究总院有限公司 | Heating furnace, optical fiber tapering method, product prepared by method and application of product |
| CN111777324B (en) * | 2020-07-09 | 2023-01-31 | 中国建筑材料科学研究总院有限公司 | Heating furnace, optical fiber tapering method, product prepared by method and application of product |
| CN115959824A (en) * | 2022-12-22 | 2023-04-14 | 长飞光纤光缆股份有限公司 | Glass fiber preparation equipment and method and quartz image transmission optical fiber preparation method |
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| CN105198203B (en) | 2017-08-29 |
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Address after: No. 93, Conghua Hedong Road, Guangzhou, Guangdong, Guangdong Patentee after: Guangzhou Hongsheng optoelectronic Polytron Technologies Inc Address before: 510925 8 Tung Bei Road, Conghua River, Guangzhou, Guangdong, 8 Patentee before: Guangzhou Hongsheng Optical Technology Co., Ltd. |
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