CN211170458U - Stretching device of optical fiber perform - Google Patents
Stretching device of optical fiber perform Download PDFInfo
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- CN211170458U CN211170458U CN201922032814.4U CN201922032814U CN211170458U CN 211170458 U CN211170458 U CN 211170458U CN 201922032814 U CN201922032814 U CN 201922032814U CN 211170458 U CN211170458 U CN 211170458U
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Abstract
The utility model relates to an optical fiber perform field, concretely relates to optical fiber perform's stretching device, include from last excellent platform, first diameter gauge, heating furnace, second diameter gauge, distance adjusting device, go up guide pulley and the draw gear of hanging that links to each other in proper order extremely down, hang excellent platform and prefabricated tensile stick one end and link to each other, steerable prefabricated tensile stick motion, distance adjusting device includes a plurality of regulation graphite wheels that set up along horizontal direction and vertical direction respectively and the first drive arrangement who adjusts the motion of graphite wheel with control, the utility model discloses a stretching device's that sets up go up guide pulley, traction wheel and distance adjusting device can further guarantee the straightness accuracy and the straightness that hangs down of prefabricated tensile stick for the crookedness and the bending shape of prefabricated tensile stick obtain guaranteeing.
Description
Technical Field
The utility model relates to an optical fiber perform field, concretely relates to optical fiber perform's stretching device.
Background
The increase of specialized manufacturers of preform production equipment has led to the emergence of various preform drawing devices, both horizontal and vertical. Horizontal stretching device: for example, the horizontal stretching device disclosed in the invention patent of chinese CN201510852554.9 has high stretching precision, but because the heating temperature zone is short, on one hand, the stretching speed is affected, and on the other hand, the furnace body has insufficient axial length and is difficult to seal well, thereby increasing the consumption of graphite parts. Vertical stretching device: the stretching speed is high, the utilization rate of graphite pieces in a heating furnace is high, but a series of defects also exist, for example, in the vertical stretching device disclosed in the invention patent of Chinese CN201811528622.6, under the condition that the upper guide wheel, the traction wheel and the traction clamp of the vertical stretching device can not completely ensure collimation and verticality, the bending degree of the stretched preform is larger, and the bending shape is complicated and diversified.
SUMMERY OF THE UTILITY MODEL
To the problem mentioned in the prior art, the utility model provides a can guarantee tensile prefabricated optical fiber rod's of bow curvature stretching device.
The utility model relates to a stretching device of optical fiber perform, include hanging excellent platform, first diameter gauge, heating furnace, second diameter gauge, distance adjusting device, upper guide pulley and the draw gear that from last to lower consecutive setting, hanging excellent platform links to each other with prefabricated tensile stick one end, and the motion of steerable prefabricated tensile stick, distance adjusting device includes a plurality of regulation graphite wheels that set up respectively along horizontal direction and vertical direction and with the first drive arrangement of control regulation graphite wheel motion, wherein, adjusts graphite wheel face and is the plane, and its wheel face width is the 1/2 setting of prefabricated tensile stick diameter after the drawing; go up guide pulley and draw gear homogeneous phase and even have the second drive arrangement and drive through the second drive arrangement, draw gear includes traction wheel and draws the clamp, and wherein, the wheel face of traction wheel is the V type, draws the clamp and is the setting of V type groove.
Preferably, the central axes of the first diameter gauge, the second diameter gauge, the heating furnace, the distance adjusting device, the upper guide wheel and the traction device are all located in the same horizontal plane.
Preferably, the first diameter measuring instrument is arranged along the horizontal direction, and the second diameter measuring instrument is arranged along the vertical direction.
Preferably, the first driving device is an electric cylinder, and the second driving device is an air cylinder.
Preferably, the upper idler wheel surface is also V-shaped, and the opening angle of the V-shape is 130 degrees.
Preferably, the V-shaped opening angle of the traction wheel is 165 degrees.
Preferably, the distance adjusting device is arranged at a distance of 10cm below the heating furnace.
Compared with the prior art, the utility model, following technological effect has been gained:
The utility model discloses a stretching device's that sets up last guide pulley, traction wheel and apart from the collimation degree and the straightness that hangs down of the prefabricated tensile stick of assurance that adjusting device can step forward for the crookedness and the bending shape of prefabricated tensile stick obtain guaranteeing.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of the distance adjustment device of the present invention.
Reference numerals: 1-hanging a rod platform; 2-a first caliper gauge; 3-a second caliper gauge; 4-heating the furnace; 5-a distance adjusting device; 6-an upper guide wheel; 7-a traction wheel; 8-a traction clamp; 9-a first drive; 10-adjusting the graphite wheel; 11-a second drive; 12-prefabricated tensile bars.
Detailed Description
Examples
The utility model relates to a stretching device of optical fiber perform, include hanging excellent platform 1, first diameter gauge 2, heating furnace 4, second diameter gauge 3, distance adjusting device 5, upper guide wheel 6 and draw gear that from last to consecutive setting up down, hanging excellent platform 1 links to each other with prefabricated stretching stick 12 one end, and the motion of prefabricated stretching stick 12 can be controlled, distance adjusting device 5 includes a plurality of regulation graphite wheels 10 that set up respectively along horizontal direction and vertical direction and with control regulation graphite wheel 10 first drive arrangement 9 that moves, wherein, adjusts graphite wheel 10 wheel face and is the plane, and its wheel face width is the 1/2 setting of prefabricated stretching stick 12 diameter after the extension; go up guide pulley 6 and draw gear homogeneous phase and even have second drive arrangement 11 and drive through second drive arrangement 11, draw gear includes that traction wheel 7 and traction press from both sides 8, and wherein, the wheel face of traction wheel 7 is the V type, and traction press from both sides 8 and be the setting of V type groove, and heating furnace 4 is graphite heating furnace 4 in this embodiment, goes up guide pulley 6, traction wheel 7, traction and presss from both sides 8 and all adopts graphite to make, and peg platform 1 is computer control.
The central axes of the first diameter gauge 2, the second diameter gauge 3, the heating furnace 4, the distance adjusting device 5, the upper guide wheel 6 and the traction device are all positioned in the same horizontal plane, so that the preform rod can be ensured not to bend and the verticality can be maintained in the process of stretching the preform rod.
The first diameter measuring instrument 2 is arranged along the horizontal direction, the second diameter measuring instrument 3 is arranged along the vertical direction, in the embodiment, the first diameter measuring instrument 2 is used for measuring horizontal direction information, the second diameter measuring instrument 3 is used for measuring vertical direction information, whether the prefabricated rod deviates from the center position or not is identified, the precision is 0.01mm, and the diameter measuring information of the stretching rod can be known more clearly.
The first driving device 9 is an electric cylinder, and the second driving device 11 is an air cylinder.
The wheel surface of the upper guide wheel 6 is also V-shaped, and the opening angle of the V-shape is 130 degrees.
The angle of the V-shaped opening of the traction wheel 7 is 165 degrees.
The distance adjusting device 5 is arranged at a position which is 10cm below the heating furnace 4.
When the device is used, the prefabricated stretching rod 12 connected with the rod hanging platform 1 firstly passes through the first diameter measuring instrument 2 to prevent the prefabricated stretching rod 12 from deviating from the center, then is heated and softened by the heating furnace 4, the conical head falls off under the action of gravity, passes through the second diameter measuring instrument 3 to prevent the prefabricated stretching rod 12 from deviating from the center after being heated, the conical head falls below the traction wheel 7, the traction wheel 7 is used for clamping the more uniform position of the conical head diameter to pull and gradually thicken the diameter, the traction speed is continuously modified when the traction wheel 7 pulls, keeping the traction speed between 50 mm/min and 80mm/min, slowly changing the diameter to a set diameter, clamping the traction clamp 8 when the traction wheel 7 pulls the uniform diameter part of the prefabricated stretching rod 12 to the traction clamp 8 part, opening the traction wheel 7, simultaneously cutting the conical head, and stopping heating the heating furnace 4 after the whole prefabricated stretching rod 12 is completely stretched;
In the whole stretching process, when the first diameter measuring instrument 2 detects that the prefabricated stretching rod 12 deviates from the central position, the rod hanging platform at the top can correspondingly adjust and control the prefabricated stretching rod 12 to move in the X/Y direction, so that the prefabricated stretching rod 12 is positioned at the central position; when the second diameter gauge 3 detects that the stretched prefabricated stretching rod 12 deviates from the central position, the distance adjusting device below the furnace mouth can perform corresponding adjustment, and the graphite wheel is used for performing extrusion adjustment in the X/Y direction, so that the moving speed of the graphite wheel is adjusted to be 0.5 mm/s.
Claims (7)
1. A stretching device of an optical fiber perform is characterized by comprising a hanging rod platform (1), a first diameter measuring instrument (2), a heating furnace (4), a second diameter measuring instrument (3), a distance adjusting device (5), an upper guide wheel (6) and a traction device which are sequentially connected from top to bottom, wherein the hanging rod platform (1) is connected with one end of a prefabricated stretching rod (12) and can control the prefabricated stretching rod (12) to move, the distance adjusting device (5) comprises a plurality of adjusting graphite wheels (10) which are respectively arranged along the horizontal direction and the vertical direction and a first driving device (9) which is used for controlling the adjusting graphite wheels (10) to move, the wheel surface of each adjusting graphite wheel (10) is a plane, and the width of the wheel surface is 1/2 of the diameter of the prefabricated stretching rod (12) after stretching;
Go up guide pulley (6) and draw gear homogeneous phase and have second drive arrangement (11) and drive through second drive arrangement (11), draw gear includes traction wheel (7) and draws and press from both sides (8), and wherein, the wheel face of traction wheel (7) is the V type, draws to press from both sides (8) and is the setting of V type groove.
2. An apparatus for elongating an optical fiber preform according to claim 1, wherein the central axes of the first caliper (2), the second caliper (3), the heating furnace (4), the distance adjusting device (5), the upper guide wheel (6) and the drawing device are all located in the same horizontal plane.
3. An apparatus for elongating an optical fiber preform according to claim 2, wherein said first caliper (2) is arranged in a horizontal direction and said second caliper (3) is arranged in a vertical direction.
4. An apparatus for elongating an optical fiber preform according to claim 3, wherein said first driving means (9) is an electric cylinder and said second driving means (11) is an air cylinder.
5. An apparatus for elongating an optical fiber preform according to claim 4, wherein the tread of the upper guide wheel (6) is also V-shaped, and the opening angle of the V-shape is 130 °.
6. An apparatus for elongating an optical fiber preform according to claim 5, wherein the V-shaped opening angle of said drawing roller (7) is 165 °.
7. An apparatus for elongating an optical fiber preform according to claim 6, wherein said distance adjusting means (5) is arranged at a distance of 10cm below the heating furnace (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922032814.4U CN211170458U (en) | 2019-11-22 | 2019-11-22 | Stretching device of optical fiber perform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922032814.4U CN211170458U (en) | 2019-11-22 | 2019-11-22 | Stretching device of optical fiber perform |
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| Publication Number | Publication Date |
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| CN211170458U true CN211170458U (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922032814.4U Active CN211170458U (en) | 2019-11-22 | 2019-11-22 | Stretching device of optical fiber perform |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114199672A (en) * | 2021-12-17 | 2022-03-18 | 青海中利光纤技术有限公司 | Prefabricated excellent extension equipment tension accredited testing organization |
| CN114315113A (en) * | 2021-12-16 | 2022-04-12 | 武汉光谷长盈通计量有限公司 | Glass capillary drawing forming equipment |
-
2019
- 2019-11-22 CN CN201922032814.4U patent/CN211170458U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114315113A (en) * | 2021-12-16 | 2022-04-12 | 武汉光谷长盈通计量有限公司 | Glass capillary drawing forming equipment |
| CN114315113B (en) * | 2021-12-16 | 2024-05-03 | 武汉光谷长盈通计量有限公司 | Glass capillary tube drawing forming equipment |
| CN114199672A (en) * | 2021-12-17 | 2022-03-18 | 青海中利光纤技术有限公司 | Prefabricated excellent extension equipment tension accredited testing organization |
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