CN205800174U - The fiber drawing furnace produced for plastic optical fiber - Google Patents
The fiber drawing furnace produced for plastic optical fiber Download PDFInfo
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- CN205800174U CN205800174U CN201620607379.7U CN201620607379U CN205800174U CN 205800174 U CN205800174 U CN 205800174U CN 201620607379 U CN201620607379 U CN 201620607379U CN 205800174 U CN205800174 U CN 205800174U
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- heater
- optical fiber
- drawing furnace
- plastic optical
- protecting wall
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Abstract
This utility model provides a kind of fiber drawing furnace produced for plastic optical fiber, it is possible to be accurately controlled the warm field of fiber drawing furnace.This fiber drawing furnace includes body of heater, internal protecting wall and mozzle, the heating region passed for prefabricated rods between described internal protecting wall, described mozzle is arranged on the bottom of body of heater, it is characterized in that, fixing thermal insulation layer it is provided with between described body of heater and internal protecting wall, this fixing thermal insulation layer has infrared radiator near the side of internal protecting wall is longitudinally fixed, the temperature sensor corresponding with infrared radiator is had away from the side of internal protecting wall is longitudinally fixed, described temperature sensor is 1～10mm with the fore-and-aft distance of infrared radiator, described temperature sensor and infrared radiator are connected with the electric control gear being arranged on outside body of heater.
Description
[technical field]
This utility model relates to optical fiber production field, particularly relates to the fiber drawing furnace of plastic optical fiber prefabricated stick wire drawing.
[background technology]
Plastic optical fiber (Plastic Optical Fiber, POF) is with the non-crystalline type isotropic polymer of high transparency
If polystyrene (PS), polymethyl methacrylate (PMMA), Merlon (PC) are as conduct bags such as core material, fluororesin
One type optical fiber (optical fibers) of layer material.Plastic optical fiber, as silica fibre, has identical advantage at photoelectric field, such as
Lightweight, electromagnetism interference, can multiplex, and fusing point is relatively low, pliability is good, not easy fracture, and hot melt stretching is easy, system
Standby low cost, simple to operate, counter stress is very sensitive, has low loss window at visible light wave range, is widely used in short distance, medium and small appearance
Amount communication system.
Plastic optical fiber wire drawing is an important step in optical fiber production manufacture process, refers to make core material monomer
Prefabricated bar, by heating pressurization extrusion core, forms optical fiber by co-extrusion or coating with skin material.In plastic optical fiber wire drawing
In production technology, temperature field is directly connected to the uniformity of fibre core diameter and the order of polymer, and then has influence on plastics
The loss of optical fiber.
Plastic optical fiber fiber drawing furnace of the prior art is provided with preheating zone and the thermal treatment zone.In drawing process, prefabricated rods to
Lower movement, is first passed through preheating zone preheating, then is heated by the thermal treatment zone, and after heating a period of time, prefabricated rods continues to move down draws
Silk success.In this process, the warm field Modulatory character within fiber drawing furnace is poor, and there is the region of temperature shock, because of
This, the plastic optical fiber produced there are that sequence is on the low side, the uniform not defect of diameter, causes the loss of plastic optical fiber to increase
Greatly, performance reduces.
[utility model content]
In order to solve drawbacks described above of the prior art, this utility model provides a kind of for drawing that plastic optical fiber produces
Silk stove, it is possible to be accurately controlled the warm field of fiber drawing furnace.
The technical solution of the utility model is:
The fiber drawing furnace produced for plastic optical fiber, including body of heater, internal protecting wall and mozzle, is prefabricated between described internal protecting wall
The heating region that rod passes, described mozzle is arranged on the bottom of body of heater, it is characterised in that set between described body of heater and internal protecting wall
Being equipped with fixing thermal insulation layer, this fixing thermal insulation layer has infrared radiator, away from internal protecting wall near the side of internal protecting wall is longitudinally fixed
Side is longitudinally fixed a temperature sensor corresponding with infrared radiator, described temperature sensor and infrared radiator longitudinally away from
From for 1～10mm, described temperature sensor and infrared radiator are connected with the electric control gear being arranged on outside body of heater.Use infrared adding
Hot device is as heater block, and energy transmission speed is fast, it is not required that by any medium, being swift in response, hysteresis quality is little, significantly subtracts
Lack the loss in heat energy transmittance process, improve heat utilization rate, and each position in body of heater can be arrived rapidly；Temperature control
Device processed can monitor the temperature of correspondence position in body of heater in real time, matches with outside electric control gear, by adjusting Infrared Heating
The power of device, it is possible to achieve wire drawing furnace temperature field is precisely controlled, and then improve the quality of optical fiber.
Concrete, the distance of above-mentioned infrared radiator distance body of heater central axis is 80～120mm.At this distance range
In, the heats of infrared radiator is stable and efficiency comparison is high.
Concrete, the thickness of above-mentioned fixing thermal insulation layer is 5～20mm.
Concrete, the outer cover of above-mentioned mozzle is provided with the extension tube for reducing fibre core diameter fluctuation, described in prolong
The inwall of long tube is provided with the cooling layer for circulating cooling fluid.
Concrete, the lower end of above-mentioned cooling layer is provided with inlet, and upper end is provided with liquid outlet.
Concrete, above-mentioned cooling fluid is gas or liquid.
Concrete, above-mentioned gas is one or more in air, argon, nitrogen, carbon dioxide, helium.
This utility model has a following useful technique effect:
1) fiber drawing furnace of the present utility model uses infrared heater as heater block, and energy transmission speed is fast, is also not required to
To pass through any medium, be swift in response, hysteresis quality is little, greatly reduces the loss in heat energy transmittance process, improves heat energy profit
By rate, and each position in body of heater can be arrived rapidly, and match with temperature sensor, electric control gear, it is possible to accurately
Control the warm field of fiber drawing furnace, meet the wire drawing demand for heat of plastic optical fiber prefabricated stick；2) through being precisely controlled the fiber drawing furnace of temperature field
The plastic optical fiber uniform diameter obtained, the degree of order is high, is lost smaller；3) optical fiber just pulling silk can be carried out by extending sleeve
Protection and cooling, reduce the extraneous factor impact on fibre core, reduces loss further, improves optical fiber quality；4) this utility model
The cooling requirement of different plastic optical fibers can be met by the regulation cooling kind of fluid and flow, under enter on the loop body that goes out
System meets the variation tendency of temperature, improves cooling effect.
[accompanying drawing explanation]
Fig. 1 is the structural representation of embodiment.
Description of symbols: 1, prefabricated rods；2, gas tight jacket；4, fixing thermal insulation layer；5, body of heater；6, internal protecting wall；7, temperature sensor；
8, infrared radiator；9, extension tube；10, mozzle；11, cooling layer；12, inlet；13, liquid outlet；14, plastic optical fiber.
[detailed description of the invention]
Below in conjunction with specific embodiment, this utility model is described further.
Embodiment provided below also is not used to limit the scope that this utility model is contained, and described step is the most not
It is to limit its execution sequence.Those skilled in the art combine existing common knowledge and do this utility model and obviously change
Enter, within also falling into the protection domain of this utility model requirement.
Embodiment
The fiber drawing furnace produced for plastic optical fiber, as it is shown in figure 1, include body of heater 5, internal protecting wall 6 and mozzle 10, described interior
The heating region passed for prefabricated rods between furnace wall 6, described mozzle 10 is arranged on the bottom of body of heater 5, it is characterised in that described
Being provided with fixing thermal insulation layer 4 between body of heater 5 and internal protecting wall 6, this fixing thermal insulation layer 4 has near the side of internal protecting wall 6 is longitudinally fixed
Infrared radiator 8, has the temperature sensor 7 corresponding with infrared radiator 8, described temperature away from the side of internal protecting wall 6 is longitudinally fixed
Degree sensor 7 is 1～10mm with the fore-and-aft distance of infrared radiator 8, described temperature sensor 7 and infrared radiator 8 and setting
Electric control gear outside body of heater 5 connects.Using infrared heater 8 as heater block, energy transmission speed is fast, it is not required that logical
Crossing any medium, be swift in response, hysteresis quality is little, greatly reduces the loss in heat energy transmittance process, improves heat utilization rate,
And each position in body of heater 5 can be arrived rapidly；Temperature controller can monitor the temperature of correspondence position in body of heater in real time, with outward
The electric control gear in portion matches, by adjusting the power of infrared heater 8, it is possible to achieve wire drawing furnace temperature field is precisely controlled,
And then improve the quality of optical fiber.
Concrete, above-mentioned infrared radiator 8 is 80～120mm apart from the distance of body of heater 5 central axis.At this distance range
In, the heats of infrared radiator 8 is stable and efficiency comparison is high.
Concrete, the thickness of above-mentioned fixing thermal insulation layer 4 is 5～20mm.
Concrete, the outer cover of above-mentioned mozzle 10 is provided with the extension tube 9 for reducing fibre core diameter fluctuation, described
The inwall of extension tube 9 is provided with the cooling layer 11 for circulating cooling fluid.
Concrete, the lower end of above-mentioned cooling layer 11 is provided with inlet 12, and upper end is provided with liquid outlet 13.
Concrete, above-mentioned cooling fluid is gas or liquid.
Concrete, above-mentioned gas is one or more in air, argon, nitrogen, carbon dioxide, helium.
Claims (6)
1. the fiber drawing furnace produced for plastic optical fiber, including body of heater (5), internal protecting wall (6) and mozzle (10), described internal protecting wall
(6) heating region passed for prefabricated rods between, described mozzle (10) is arranged on the bottom of body of heater (5), it is characterised in that institute
Stating and be provided with fixing thermal insulation layer (4) between body of heater (5) and internal protecting wall (6), this fixing thermal insulation layer (4) is near the one of internal protecting wall (6)
Side is longitudinally fixed infrared radiator (8), away from the side of internal protecting wall (6) longitudinally fixed have corresponding with infrared radiator (8)
Temperature sensor (7), described temperature sensor (7) is 1～10mm with the fore-and-aft distance of infrared radiator (8), and described temperature passes
Sensor (7) and infrared radiator (8) are connected with the electric control gear being arranged on outside body of heater.
The fiber drawing furnace produced for plastic optical fiber the most according to claim 1, it is characterised in that described infrared radiator
(8) distance of distance body of heater (5) central axis is 80～120mm.
The fiber drawing furnace produced for plastic optical fiber the most according to claim 1, it is characterised in that described fixing thermal insulation layer
(4) thickness is 5～20mm.
The fiber drawing furnace produced for plastic optical fiber the most according to claim 1, it is characterised in that described mozzle (10)
Outer cover is provided with the extension tube (9) for reducing fibre core diameter fluctuation, and the inwall of described extension tube (9) is provided with for following
The cooling layer (11) of ring cooling fluid.
The fiber drawing furnace produced for plastic optical fiber the most according to claim 4, it is characterised in that described cooling layer (11)
Lower end is provided with inlet (12), and upper end is provided with liquid outlet (13).
The fiber drawing furnace produced for plastic optical fiber the most according to claim 4, it is characterised in that described cooling fluid is gas
Body or liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620607379.7U CN205800174U (en) | 2016-06-20 | 2016-06-20 | The fiber drawing furnace produced for plastic optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620607379.7U CN205800174U (en) | 2016-06-20 | 2016-06-20 | The fiber drawing furnace produced for plastic optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205800174U true CN205800174U (en) | 2016-12-14 |
Family
ID=57505504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620607379.7U Active CN205800174U (en) | 2016-06-20 | 2016-06-20 | The fiber drawing furnace produced for plastic optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205800174U (en) |
-
2016
- 2016-06-20 CN CN201620607379.7U patent/CN205800174U/en active Active
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| GR01 | Patent grant |