CN110981185A - On-line automatic cutting method and device for optical glass fiber - Google Patents
On-line automatic cutting method and device for optical glass fiber Download PDFInfo
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- CN110981185A CN110981185A CN201911264435.6A CN201911264435A CN110981185A CN 110981185 A CN110981185 A CN 110981185A CN 201911264435 A CN201911264435 A CN 201911264435A CN 110981185 A CN110981185 A CN 110981185A
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/10—Non-chemical treatment
- C03B37/16—Cutting or severing
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/10—Non-chemical treatment
- C03B37/14—Re-forming fibres or filaments, i.e. changing their shape
Abstract
The invention mainly aims to provide an on-line automatic cutting method and device for optical glass fibers. The method comprises the following steps: heating, scratching and air-cooling the optical glass fiber to break the optical glass fiber at the marked crease line; the device sequentially comprises: a heating unit for heating the optical glass fiber; the scratching unit is used for scratching the optical glass fiber to enable the surface of the optical glass fiber to generate a crease line; and the air cooling unit is used for cooling the optical glass fiber to be broken at the crease line. The technical problem to be solved is to ensure that the cutting can be automatically completed on line in the processing process of the optical glass fiber, thereby not only ensuring the product quality, but also improving the production efficiency, simultaneously saving the labor and material cost, and also improving the process safety, thereby being more suitable for practicality.
Description
Technical Field
The invention belongs to the technical field of optical device processing, and particularly relates to an on-line automatic cutting method and device for optical glass fibers.
Background
In the field of low-light night vision, the manufacturing process of photoelectric devices such as optical fiber panels, optical fiber image inverters, optical fiber light cones, microchannel plates and the like all relates to the high-temperature drawing process of optical fibers. The glass core material rod with higher refractive index and the glass cladding material tube with lower refractive index are matched and sleeved, then softened by a high-temperature heating furnace, drawn into optical fiber (unit yarn) with required outer diameter size by a drawing device, and then the unit yarn bundle is drawn into primary multifilament and secondary multifilament by the drawing process. And hot melting and pressing the multifilament bundle to obtain the blank material of the photoelectric device.
Optical glass fibers are generally rigid and have a relatively large diameter and a limited degree of flexibility, so that the drawing tower in the drawing process is generally arranged vertically. The fibers need to be cut after being stretched to a certain length. Further, since the diameter of the optical glass fiber (filament) is large, the primary and secondary multifilaments are discharged quickly although the diameter is small, and it is difficult to realize on-line real-time cutting by using a grinding wheel for direct cutting or laser cutting.
In the current cutting process, when the length of a fiber is stretched to a designated scale position, a shallow mark is marked on the fiber at a filament outlet position by manually holding a diamond cutter, and the fiber is broken at the marked position. However, the prior art processes have several drawbacks: firstly, because the fiber drawing speed is high, only one drawing tower can be maintained by one worker, the efficiency is low and the cost is high; secondly, the manually cut fibers have uneven length and poor uniformity, so that large material waste can be caused in subsequent processing; thirdly, when the fiber is broken, glass scraps can be generated at the broken part to pollute or scratch the surface of the fiber, so that the optical transmission performance of the fiber is influenced; fourthly, in the fiber drawing process, because the residual thermal stress in the material of the glass rod tube has a certain probability of explosion when the glass rod tube is heated and melted again, the glass fragments of the explosion fall from high altitude, the injury is caused to the staff below, and a certain safety risk exists.
Disclosure of Invention
The invention mainly aims to provide an optical glass fiber on-line automatic cutting method and device, aiming at solving the technical problem that the cutting can be automatically finished on line in the optical glass fiber processing process, thereby not only ensuring the product quality, but also improving the production efficiency, simultaneously saving the labor and material costs, and improving the process safety, thereby being more suitable for practical use.
The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme. The invention provides an on-line automatic cutting method of optical glass fiber, which comprises the following steps: the optical glass fiber is heated, scored and air cooled to break at the scored line.
The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.
Preferably, in the method, the diameter of the optical glass fiber is 0.5 to 5 mm.
Preferably, the method wherein the heating temperature is 400 ℃ to 550 ℃.
Preferably, the method as described above, wherein said score line has a depth of 0.5mm or less.
Preferably, in the method, the temperature of the cold air blown out by the air cooling device is less than or equal to 50 ℃, and the air pressure is less than or equal to 0.3 Mpa.
Preferably, in the method, the temperature of the cold air blown out by the air cooling device is less than or equal to 20 ℃, and the air pressure is less than or equal to 0.3 Mpa.
Preferably, the method further comprises the following steps: the air-cooled optical glass fiber is bent.
The object of the present invention and the technical problem to be solved are also achieved by the following technical means. According to the invention, the invention provides an optical glass fiber on-line automatic cutting device, which sequentially comprises:
a heating unit for heating the optical glass fiber;
the scratching unit is used for scratching the optical glass fiber to enable the surface of the optical glass fiber to generate a crease line;
and the air cooling unit is used for cooling the optical glass fiber to be broken at the crease line.
The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.
Preferably, the apparatus further comprises a bending unit, and the optical glass fiber passing through the air cooling unit enters the bending unit to be bent.
Preferably, the device comprises a heating unit, a scratching unit, an air cooling unit, a guiding unit and a bending unit which are arranged from top to bottom in sequence;
the heating unit comprises an annular electric heating furnace fixed on the rotary cantilever, and a fiber inlet is formed in the side surface of the annular electric heating furnace; the optical glass fiber enters the annular electric heating furnace through the inlet to be heated;
the scratching unit comprises a telescopic tool rest, and one end of the tool rest is provided with a rotatable grinding wheel cutter; the cutter is used for scratching the appointed position on the surface of the optical glass fiber;
the air cooling unit comprises a refrigeration module and a cold air pipe connected with the refrigeration module; the cold air pipe is used for blowing cold air to the surface of the optical glass fiber;
the guide unit comprises a double-side driven guide wheel and a single-side driven guide wheel which are sequentially arranged from top to bottom and used for restraining the position of the optical glass fiber in the horizontal direction;
the bending unit comprises a slant transmission belt and a horizontal transmission belt which are connected with each other and used for transmitting the optical glass fiber, and the included angle of the surfaces of the slant transmission belt and the horizontal transmission belt which are contacted with the optical glass fiber is 110-135 degrees; the length of the inclined plane transmission belt is larger than that of the optical glass fiber.
By the technical scheme, the method and the device for automatically cutting the optical glass fiber on line provided by the invention at least have the following advantages:
1. the method and the device for the on-line automatic cutting of the optical glass fiber enable the optical glass fiber to realize the on-line automatic cutting through the thermal stress action of the glass under the combined action of the three steps of heating, scratching and air cooling, overcome the defect that the optical glass fiber needs to be manually cut on duty in the prior art, avoid the problem of uneven quality of manual cutting on one hand, save the labor cost on the other hand, and simultaneously avoid the safety risk of casualties caused by thermal stress burst of a high-altitude glass rod pipe; the technical scheme of the invention can realize unattended remote monitoring, and is economical, efficient and safe;
2. the method and the device for automatically cutting the optical glass fiber on line provided by the invention can be used for further acting the mechanical force on the optical glass fiber which is possibly left in the front-stage process and is cut or not cut thoroughly to ensure that the optical glass fiber is completely cut off by guiding and bending the optical glass fiber, thereby improving the product quality qualified rate;
3. according to the method and the device for the online automatic cutting of the optical glass fiber, the refrigerating module is arranged on the gap unit, the cold air blown out by the air cooling unit is cooled, the temperature difference between heating and air cooling is further increased, and the online automatic cutting effect of a thermal stress fracture mechanism is better.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
FIG. 1 is a schematic structural diagram of an on-line automatic cutting device for optical glass fibers according to the present invention;
FIG. 2 is a schematic structural view of an annular electrothermal furnace according to an embodiment of the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description will be made on the embodiments, structures, features and effects of the method and device for on-line automatic cutting of optical glass fiber according to the present invention with reference to the accompanying drawings and preferred embodiments.
The invention provides an on-line automatic cutting method for optical glass fibers, which comprises the following steps: the optical glass fiber is heated, scored and air cooled to break at the scored line.
The glass fiber is processed in a drawing tower. Firstly, under the combined action of a laser diameter measuring instrument and a closed-loop control system, drawing a glass rod tube blank into optical glass fibers (unit fibers) with qualified sizes according to a preset fiber diameter; the laser diameter measuring instrument and the closed-loop control system are both in the prior art, and when the system works, the closed-loop control system controls the fiber drawing speed according to the fiber diameter result of the optical glass fiber measured by the laser diameter measuring instrument; when the diameter of the fiber exceeds the required upper limit, the drawing speed is increased, otherwise, the drawing speed is reduced; then, the closed-loop control system calculates the wire length according to the wire drawing speed, and the optical glass fiber is automatically cut on line according to the specified length and size by the technical scheme of the invention.
The temperature of the optical glass fiber is very high during drawing, the optical glass fiber is heated and insulated, and is scratched at the position to be cut according to the specified fiber length size, and then the temperature is rapidly reduced through air cooling. The comprehensive effect of the three continuous steps enables the optical glass fiber to cause crack propagation and further fracture at the crease line under the thermal stress generated by the sharp temperature difference, and the purpose of online automatic cutting of the optical glass fiber is realized.
The technical scheme of the invention can realize unattended remote monitoring, and the safety risk of human casualty can not exist even if the accident of high-altitude glass rod pipe burst occurs in the production field.
Preferably, the diameter of the optical glass fiber is 0.5-5 mm.
The optical glass fiber researched by the invention is a unit fiber with a thicker filament diameter drawn for the first time, or a primary multifilament drawn by bundling the unit fiber and a secondary multifilament drawn by bundling the unit fiber again, the filament diameter of the multifilament is millimeter, the filament discharging speed is high, and the on-line automatic cutting is difficult to realize for a mechanical cutter.
Preferably, the heating temperature is 400-550 ℃.
The limitation of the heating temperature is based on different characteristics of different glass materials, and on the one hand, the glass is expected to be as high as possible under the premise that the softening temperature of the glass does not influence the drawing process, so that the temperature difference of the later quenching is strengthened to improve the cutting effect.
Preferably, the depth of the crease line is less than or equal to 0.5 mm.
The definition of the score line is basically that the technical effect of the invention can be achieved only by one very fine score line on the fiber. The depth is not limited to be too deep, and is mainly based on two aspects. On one hand, if the depth of the scratch is required to be deep, the scratch conflicts with the higher speed in drawing, and the real-time measurement of the wire diameter is disturbed; on the other hand, in terms of product quality control, when the scratch depth is deep, more glass chips are generated, and the glass chips can pollute or scratch the surface of the glass fiber and pollute the processing environment, thereby affecting the optical transmission performance of the optical glass fiber.
Preferably, the temperature of cold air blown out by the air cooling is less than or equal to 50 ℃, and the air pressure is less than or equal to 0.3 Mpa.
Preferably, the temperature of cold air blown out by the air cooling is less than or equal to 20 ℃, and the air pressure is less than or equal to 0.3 Mpa.
In the technical scheme of the invention, the principle of online automatic cutting is that the thermal stress generated by the temperature difference of a flash step at the position of a glass crease line causes the crack to expand and finally break. In general, the technical effect of the invention can be realized by blowing compressed air at room temperature and normal ambient temperature. Preferably, if a refrigeration system is arranged in the air cooling system, the temperature of the blown compressed air is lower, and better cutting effect is achieved.
Preferably, it further comprises the steps of: the air-cooled optical glass fiber is bent.
The technical means is arranged in a bottom pocket means and aims to completely cut the optical glass fibers which are not completely cut by heating, scratching and air cooling and are connected with the individual wires by a bending technical means so as to improve the qualification rate of products.
The invention also provides an on-line automatic cutting device for optical glass fiber, as shown in fig. 1, which comprises the following components in sequence:
a heating unit 1 for heating the optical glass fiber;
the scratching unit 2 is used for scratching the optical glass fiber to enable the surface of the optical glass fiber to generate a crease line;
and the air cooling unit 3 is used for cooling the optical glass fiber to be broken at the crease line.
Preferably, it further comprises a bending unit 5, and the optical glass fiber passing through the air cooling unit 3 enters the bending unit 5 to be bent.
Preferably, the device comprises a heating unit 1, a scratching unit 2, an air cooling unit 3, a guiding unit 4 and a bending unit 5 which are arranged from top to bottom in sequence;
the heating unit 1 comprises an annular electric heating furnace 10 fixed on a rotary cantilever 15, and a fiber inlet 11 is arranged on the side surface of the annular electric heating furnace; the optical glass fiber enters an annular electric heating furnace 10 through the inlet 11 to be heated;
the scratching unit 2 comprises a telescopic tool rest 21, and one end of the tool rest 21 is provided with a rotatable grinding wheel cutter 22; the cutter 22 is used for scratching the designated position on the surface of the optical glass fiber;
the air cooling unit 3 comprises a refrigeration module and a cold air pipe connected with the refrigeration module; the cold air pipe is used for blowing cold air to the surface of the optical glass fiber;
the guiding unit 4 comprises a double-side driven guide wheel 41 and a single-side driven guide wheel 42 which are sequentially arranged from top to bottom and used for restraining the position of the optical glass fiber in the horizontal direction;
the bending unit 5 comprises a slant transmission belt 51 and a horizontal transmission belt 52 which are connected with each other and are used for transmitting optical glass fibers, and the included angle between the surfaces of the slant transmission belt 51 and the surfaces of the horizontal transmission belt 52, which are in contact with the optical glass fibers, is 110-135 degrees; the length of the inclined plane transmission belt 51 is larger than that of the optical glass fiber.
The following is further illustrated by specific examples.
In an embodiment of the present invention, as shown in fig. 1, in a drawing tower 03, an upper end of a glass rod and tube blank 01 is fixed on a blanking device, a lower end of the glass rod and tube blank extends into a drawing furnace 02 to be heated and softened, a softened stub falls and pulls out a glass fiber 05, the optical fiber 05 is actively pulled down by a fiber pulling wheel 06 at a certain speed, and the rod and tube blank 01 also gradually sinks into the drawing furnace 02 at a certain speed to supplement a drawing material. Generally, the sinking speed of the rod and tube blank 01 is constant, the pulling-down speed of the fiber 05 is changed according to the change of the wire diameter measured by the laser diameter measuring instrument 04, and a set of closed-loop control system is used for controlling and adjusting parameters.
An annular electric heating furnace 10 is arranged below the fiber traction wheel 06 and is fixed on a rotatable cantilever 15, and a fiber inlet 11 is arranged on the side surface of the furnace body. After the diameter of the stretched fiber 05 is stable and does not change violently any more, rotating the furnace body to enable the fiber 05 to be positioned at the center of the furnace body, and controlling the temperature of the electric heating furnace body to be a certain fixed value between 400 ℃ and 550 ℃; the ring-shaped electric heating furnace 10 is shown in fig. 2, and includes a heating wire 12, a heating wire partition plate 13, and a thermocouple 14 for measuring a temperature thereof.
A pneumatic telescopic tool rest 21 is arranged below the electric heating furnace 10, the end of the tool rest 21 is a grinding wheel tool 22 rotating at a certain speed (200-300 rpm), the tool rest 21 is controlled by a closed-loop control system to stretch and retract once according to the length of the required fiber and the fiber stretching speed, and when the tool rest 21 extends out, a scratch with the depth less than 0.5mm is scratched on the fiber 05 and the scratch retracts rapidly.
An air-cooled air pipe is arranged below the telescopic tool rest 21 and can continuously blow out low-temperature air, and the air pressure is controlled within 0.3 MPa. The fiber 05 is heated by the electric heating furnace 10 during stretching, and after scratches are marked by the telescopic grinding wheel cutter 22, the temperature is rapidly reduced by air cooling, and the thermal stress generated by the temperature difference enables the fiber 05 to crack and expand at the scratches and break. Part of the unbroken fibres will be broken by the bending moment created by the combination of the lower guide wheel 4 and the conveyor belt 5.
Below the air-cooled air pipe is a set of two-sided passive guide wheels 41 and a single-sided passive guide wheel 42 for restraining the horizontal displacement of the fiber. And a set of inclined plane conveying belt 51 device is arranged below the conveying belt, the surface length of the conveying belt is higher than the specified fiber length, the active conveying speed is slightly higher than the fiber stretching speed, and an included angle of 45-70 degrees is formed between the surface of the conveying belt and the ground. When the thermal stress does not cause the fiber to break, the fiber is bent by the cooperation of the guide roller 4 and the transmission belt 5 and is broken at the scratch, and the optical fiber with the specified length is obtained.
Example 1
The rod and tube suite with the diameter of 35mm and the length of 500mm is fixedly suspended above a wire drawing furnace which is heated to 750-850 ℃ in advance. Sinking the lower end of the rod pipe sleeve to extend into the wire drawing furnace for 30-50 mm, and waiting for 10-30 min; and melting and falling the lower end of the rod pipe to form glass fiber. The frit is removed and the glass fiber is guided into a fiber draw wheel to begin drawing.
The sinking speed of the rod and tube blank is constant at 6mm/min, and the drawing speed of the drawing wire is regulated and controlled by a closed-loop control system according to the wire diameter parameter fed back by the laser diameter gauge according to the required wire diameter requirement. The target wire diameter of the drawing unit wire is within the range of 3.15-3.20 mm, and the wire drawing speed is within the range of 500-900 mm/min after the system is stable.
After the filament diameter is stabilized, the rotatable cantilever furnace is rotated to the position where the fiber is positioned at the center of the furnace body, and the electric heating furnace is heated to 500 ℃ in advance for heat preservation.
And opening an air cooling air pipe to blow compressed air, wherein the pressure is controlled within 0.3 MPa.
And starting the pneumatic telescopic grinding wheel device, calculating the fiber length according to the wire drawing speed, extending the grinding wheel when the fiber length reaches 1200mm, cutting a wound with the depth of less than 0.5mm on the fiber, automatically breaking the fiber by the thermal stress formed by the cut wound under the action of heating of the cantilever furnace and cooling of the air cooling pipe, and removing and collecting the fiber by a conveying belt which runs clockwise below the cut wound.
If the thermal stress of a certain fiber is not enough to break the fiber, the optical fiber with the wound can be broken at the wound by the lower double-side driven guide wheel, the lower single-side driven guide wheel and the clockwise running inclined-plane transmission belt. The bevel conveyor belt and the horizontal conveyor belt both run clockwise at a speed higher than the wire drawing speed.
Example 2
The primary compound wire rod with the cross section of a regular hexagon, the width of the distance between opposite sides of the regular hexagon and the length of 1200mm is fixedly suspended above a wire drawing furnace, and the wire drawing furnace is heated to 750-850 ℃ in advance. The lower end of the sinking rod pipe sleeve piece extends into the wire drawing furnace for 30-50 mm, and the time is 10-30 min; the lower end of the tube melts, falls and forms glass fibers, the glass stub is removed, and the glass fibers are guided into a fiber drawing wheel to begin drawing.
The sinking speed of the primary wire-compounding rod is constant at 7mm/min, and the wire drawing traction speed is regulated and controlled by a closed-loop control system according to wire diameter parameters fed back by a laser diameter gauge according to the required wire diameter requirement. The target filament diameter (the distance between opposite sides of a regular hexagon) of the primary multi-filament is within the range of 1.25-1.30 mm, and the drawing speed is within the range of 2700-2800 mm/min after the system is stable.
After the filament diameter is stabilized, the rotatable cantilever furnace is rotated to the position where the fiber is positioned at the center of the furnace body, and the electric heating furnace is heated to 500 ℃ in advance for heat preservation.
And opening an air cooling air pipe to blow compressed air, wherein the pressure is controlled within 0.3 MPa.
And starting the pneumatic telescopic grinding wheel device, calculating the fiber length according to the wire drawing speed, extending the grinding wheel when the fiber length reaches the specified length of 850mm, cutting a wound with the depth of less than 0.5mm on the fiber, automatically breaking the fiber by the thermal stress formed by the cut wound under the action of heating of the cantilever furnace and cooling of the air cooling pipe, and removing and collecting the fiber by a conveying belt which runs clockwise below the cut wound.
If the thermal stress of a certain fiber is not enough to break the fiber, the optical fiber with the wound can be broken at the wound by the lower double-side driven guide wheel, the lower single-side driven guide wheel and the clockwise running inclined-plane transmission belt. The bevel conveyor belt and the horizontal conveyor belt both run clockwise at a speed higher than the wire drawing speed.
Example 3
And fixedly suspending a secondary compound wire rod with a regular hexagon cross section, a width of 28mm between opposite sides and a length of 850mm above a wire drawing furnace, wherein the wire drawing furnace is heated to 750-850 ℃ in advance. The lower end of the sinking rod pipe sleeve piece extends into the wire drawing furnace for 30-50 mm, and the time is 10-30 min; and after the lower end of the rod tube melts, falls and forms glass fibers, removing the glass stub, and guiding the glass fibers into a fiber traction wheel to start drawing.
The sinking speed of the primary wire-compounding rod is constant at 5mm/min, and the wire drawing traction speed is regulated and controlled by a closed-loop control system according to wire diameter parameters fed back by a laser diameter gauge according to the required wire diameter requirement. The target filament diameter (regular hexagon opposite side distance) of the primary multi-filament is within the range of 1.15-1.20 mm, and the drawing speed is within the range of 2500-2600 mm/min after the system is stable.
After the filament diameter is stabilized, the rotatable cantilever furnace is rotated to the position where the fiber is positioned at the center of the furnace body, and the electric heating furnace is heated to 500 ℃ in advance for heat preservation.
And opening an air cooling air pipe to blow compressed air, wherein the pressure is controlled within 0.3 MPa.
And starting the pneumatic telescopic grinding wheel device, calculating the fiber length according to the wire drawing speed, extending the grinding wheel when the fiber length reaches the specified length of 850mm, cutting a wound with the depth of less than 0.5mm on the fiber, automatically breaking the fiber by the thermal stress formed by the cut wound under the action of heating of the cantilever furnace and cooling of the air cooling pipe, and removing and collecting the fiber by a conveying belt which runs clockwise below the cut wound.
If the thermal stress of a certain fiber is not enough to break the fiber, the optical fiber with the wound can be broken at the wound by the lower double-side driven guide wheel, the lower single-side driven guide wheel and the clockwise running inclined-plane transmission belt. The bevel conveyor belt and the horizontal conveyor belt both run clockwise at a speed higher than the wire drawing speed.
The features of the invention claimed and/or described in the specification may be combined, and are not limited to the combinations set forth in the claims by the recitations therein. The technical solutions obtained by combining the technical features in the claims and/or the specification also belong to the scope of the present invention.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are still within the scope of the technical solution of the present invention.
Claims (10)
1. An on-line automatic cutting method for optical glass fibers is characterized by comprising the following steps: the optical glass fiber is heated, scored and air cooled to break at the scored line.
2. The method of claim 1, wherein the optical glass fiber has a diameter of 0.5 to 5 mm.
3. The method of claim 1, wherein the heating is at a temperature of 400 ℃ to 550 ℃.
4. The method of claim 1, wherein said score line has a depth of 0.5mm or less.
5. The method as claimed in claim 1, wherein the temperature of the cold air blown out by the air cooling device is less than or equal to 50 ℃, and the air pressure is less than or equal to 0.3 Mpa.
6. The method as claimed in claim 1, wherein the temperature of the cold air blown out by the air cooling device is less than or equal to 20 ℃, and the air pressure is less than or equal to 0.3 Mpa.
7. The method according to claim 1, characterized in that it further comprises the steps of:
the air-cooled optical glass fiber is bent.
8. The utility model provides an online automatic cutting device of optical glass fiber which characterized in that, it includes in proper order:
a heating unit for heating the optical glass fiber;
the scratching unit is used for scratching the optical glass fiber to enable the surface of the optical glass fiber to generate a crease line;
and the air cooling unit is used for cooling the optical glass fiber to be broken at the crease line.
9. The apparatus of claim 1, further comprising a bending unit, wherein the optical glass fiber passing through the air-cooling unit enters the bending unit to be bent.
10. The apparatus according to claim 8 or 9, comprising a heating unit, a scratching unit, an air cooling unit, a guiding unit and a bending unit which are sequentially arranged from top to bottom;
the heating unit comprises an annular electric heating furnace fixed on the rotary cantilever, and a fiber inlet is formed in the side surface of the annular electric heating furnace; the optical glass fiber enters the annular electric heating furnace through the inlet to be heated;
the scratching unit comprises a telescopic tool rest, and one end of the tool rest is provided with a rotatable grinding wheel cutter; the cutter is used for scratching the appointed position on the surface of the optical glass fiber;
the air cooling unit comprises a refrigeration module and a cold air pipe connected with the refrigeration module; the cold air pipe is used for blowing cold air to the surface of the optical glass fiber;
the guide unit comprises a double-side driven guide wheel and a single-side driven guide wheel which are sequentially arranged from top to bottom and used for restraining the position of the optical glass fiber in the horizontal direction;
the bending unit comprises a slant transmission belt and a horizontal transmission belt which are connected with each other and used for transmitting the optical glass fiber, and the included angle of the surfaces of the slant transmission belt and the horizontal transmission belt which are contacted with the optical glass fiber is 110-135 degrees; the length of the inclined plane transmission belt is larger than that of the optical glass fiber.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911264435.6A CN110981185A (en) | 2019-12-11 | 2019-12-11 | On-line automatic cutting method and device for optical glass fiber |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911264435.6A CN110981185A (en) | 2019-12-11 | 2019-12-11 | On-line automatic cutting method and device for optical glass fiber |
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| CN110981185A true CN110981185A (en) | 2020-04-10 |
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| CN201911264435.6A Pending CN110981185A (en) | 2019-12-11 | 2019-12-11 | On-line automatic cutting method and device for optical glass fiber |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE421808A (en) * | 1936-05-28 | 1937-07-21 | ||
| CN87211842U (en) * | 1987-08-14 | 1988-04-27 | 国家建筑材料工业部建筑材料科学研究院 | Automatic cutter for optical glass fiber wire-drawing |
| DE3639458A1 (en) * | 1986-11-18 | 1988-05-19 | Standard Elektrik Lorenz Ag | METHOD AND DEVICE FOR DETACHABLE FASTENING OF BLANK FIBERGLASS IN A SPLICE DEVICE |
| CA2045349A1 (en) * | 1990-06-27 | 1991-12-28 | Yuichi Ohga | Process of drawing optical fiber |
| JP2002308642A (en) * | 2001-04-10 | 2002-10-23 | Fujikura Ltd | Method and device for cutting optical fiber |
-
2019
- 2019-12-11 CN CN201911264435.6A patent/CN110981185A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE421808A (en) * | 1936-05-28 | 1937-07-21 | ||
| DE3639458A1 (en) * | 1986-11-18 | 1988-05-19 | Standard Elektrik Lorenz Ag | METHOD AND DEVICE FOR DETACHABLE FASTENING OF BLANK FIBERGLASS IN A SPLICE DEVICE |
| CN87211842U (en) * | 1987-08-14 | 1988-04-27 | 国家建筑材料工业部建筑材料科学研究院 | Automatic cutter for optical glass fiber wire-drawing |
| CA2045349A1 (en) * | 1990-06-27 | 1991-12-28 | Yuichi Ohga | Process of drawing optical fiber |
| JP2002308642A (en) * | 2001-04-10 | 2002-10-23 | Fujikura Ltd | Method and device for cutting optical fiber |
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Application publication date: 20200410 |