CN113188759A - Quality detection device for light guide fiber production - Google Patents
Quality detection device for light guide fiber production Download PDFInfo
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- CN113188759A CN113188759A CN202110666305.6A CN202110666305A CN113188759A CN 113188759 A CN113188759 A CN 113188759A CN 202110666305 A CN202110666305 A CN 202110666305A CN 113188759 A CN113188759 A CN 113188759A
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- 238000001514 detection method Methods 0.000 title claims abstract description 18
- 238000007380 fibre production Methods 0.000 title description 3
- 239000013307 optical fiber Substances 0.000 claims abstract description 78
- 238000004804 winding Methods 0.000 claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 239000006185 dispersion Substances 0.000 claims description 13
- 239000000835 fiber Substances 0.000 claims description 8
- 230000003044 adaptive effect Effects 0.000 claims description 4
- 239000011111 cardboard Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 230000003287 optical effect Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 239000002184 metal Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000253 optical time-domain reflectometry Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
- G01M11/33—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter being disposed at one fibre or waveguide end-face, and a light receiver at the other end-face
Abstract
The invention discloses a quality detection device for producing light guide optical fibers, which comprises a camera bellows group, a light source component, a fixing mechanism, an acquisition module and an image processing module, wherein the camera bellows group comprises a first camera bellows used for installing the light source component and a second camera bellows used for accommodating optical fibers, and the fixing mechanism comprises an inner fixing module and an outer fixing module; the internal fixing module is arranged in the second camera bellows and comprises two clamping plates, and the two clamping plates are parallel to each other and are respectively provided with a plurality of clamping holes; the external fixing module comprises a base and a winding assembly arranged on the base and used for winding the optical fiber cable; a side wall of the second camera bellows is provided with an opening, a side door matched with the opening in a covering mode is arranged on the side wall, and a through hole for enabling an incident end and an emergent end of the optical fiber cable to pass through is formed in the side door. The application has the effect of more conveniently detecting the optical fiber cable on the production and processing site.
Description
Technical Field
The application relates to the field of optical fiber production and processing, in particular to a quality detection device for producing light guide optical fibers.
Background
In fiber optic systems, the optical power of an optical fiber is the fundamental data for assessing its quality. For the detection of the optical fiber, two detection methods are available in the market at present, the first method is that a stable light source is connected to one end of the optical fiber for lighting, an optical power meter is connected to the other side of the optical fiber for reading the received optical power, and the quality of the optical fiber is judged according to the optical power of a receiving end; and the second method is to connect an optical source to light one end of the optical cable and judge the quality of the fiber core by using an OTDR test curve.
Chinese patent publication No. CN204101264U discloses an optical fiber quality detection system, which includes: the system comprises a first camera bellows, a second camera bellows, a light source and a reflector which are arranged in the first camera bellows, an optical fiber fixing device, a CCD camera and a stepping motor which are arranged in the second camera bellows, and an image processing system; the optical fiber fixing device and the CCD camera are fixed on the stepping motor, and the optical fiber fixing device is used for fixing an optical fiber to be detected; the first dark box and the second dark box are respectively provided with a light through hole; the light beam emitted by the light source irradiates the incident end of the optical fiber to be detected after passing through the reflector, the light through hole of the first dark box and the light through hole of the second dark box, and the CCD camera collects the image information of the emergent end of the optical fiber to be detected and transmits the image information to the image processing system for image information processing.
In the prior art, the light source emits uniform light beams to be reflected to the incident end of the optical fiber to be detected, and the image information collected by the CCD camera at the emergent end of the optical fiber to be detected is transmitted to the image processing system for processing, so that the quality of the optical fiber can be detected in batches, but the inventor finds that the following defects exist in the actual application process:
limited by the optical fiber fixing device, the optical fiber fixing device is applicable to a standard sample which is manufactured in a trial mode or intercepted, and the optical fiber cable is inconvenient to use and detect in the actual processing process, so that a new technical scheme is provided in the application.
Disclosure of Invention
In order to more conveniently detect the optical fiber cable on the production and processing site, the application provides a quality detection device for producing the light guide optical fiber.
A quality detection device for producing light guide optical fibers comprises a camera bellows group, a light source component, a fixing mechanism, an acquisition module and an image processing module, wherein the camera bellows group comprises a first camera bellows used for mounting the light source component and a second camera bellows used for accommodating optical fibers, and the fixing mechanism comprises an inner fixing module and an outer fixing module;
the internal fixing module is arranged in the second camera bellows and comprises two clamping plates, and the two clamping plates are parallel to each other and are respectively provided with a plurality of clamping holes;
the external fixing module comprises a base and a winding assembly arranged on the base and used for winding the optical fiber cable;
a side wall of the second camera bellows is provided with an opening, a side door matched with the opening in a covering mode is arranged on the side wall, and a through hole for enabling an incident end and an emergent end of the optical fiber cable to pass through is formed in the side door.
Optionally, still be provided with the sideslip mechanism in the second camera bellows, the sideslip mechanism includes first linear actuator, first linear actuator's driving direction perpendicular to side door, the internal fixation module still includes the base, the base is fixed in first linear actuator's removal portion, the cardboard sets up in the base.
Optionally, a second linear actuator is fixed on the base, the driving direction of the second linear actuator is horizontally perpendicular to the first linear actuator, and one of the clamping plates is fixed on the moving part of the second linear actuator.
Optionally, still be provided with the deconcentrator that is used for dispersing each optic fibre on the base, the deconcentrator includes two splint that slide each other and connect, one be provided with a plurality of dispersion boards on the face of splint towards another splint, it is a plurality of the direction of sliding of two splint of direction of arranging perpendicular to of dispersion board, the dispersion board side view is right angled triangle and a right angle limit is fixed in a splint, and the hypotenuse is towards another splint.
Optionally, the inner wall of the side door is provided with a slide way corresponding to the two through holes, an adaptive adjusting plate is connected in the slide way in a sliding manner, and a plurality of adjusting holes with different apertures are formed in the adjusting plate; the central line of the through hole is vertical to the central line of the slide way.
Optionally, the adjusting hole is a taper hole, and the taper bottom faces the outside of the side door.
Optionally, the wire winding assembly includes a supporting plate, a plurality of locating levers and is used for driving the supporting plate to rotate around the central axis, the locating levers are vertically arranged on the upper plate surface of the supporting plate and distributed around the central axis of the supporting plate, and the motor is fixed on the base.
Optionally, the winding assembly further includes a linkage distance adjusting mechanism for driving the positioning rods to separate or approach each other.
Optionally, the upper end of the positioning rod is also provided with a detachably connected anti-dropping top plate.
Optionally, the base is further covered with a light shield for covering the positioning rods at the same time.
In summary, the present application includes at least one of the following beneficial technical effects: the optical fiber can be wound by the winding assembly, so that subsequent carrying and storage are facilitated; meanwhile, the optical fiber cable can be directly subjected to optical power detection and the like in a coiled state, and feeding and discharging can be carried out outside the second dark box, so that the optical fiber cable can be detected on a production and processing site more conveniently, and the applicability is higher.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present application;
FIG. 2 is a schematic illustration of the detection process of the present application;
FIG. 3 is a schematic internal view of the camera bellows set of the present application with portions cut away;
FIG. 4 is a schematic structural view of the internal fixation module after a partial explosion of the present application;
fig. 5 is a schematic structural view of the external fixation module after partial explosion according to the present application.
Description of reference numerals: 1. a hidden box group; 11. a first dark box; 12. a second dark box; 121. a side door; 1211. a slideway; 1212. an adjusting plate; 2. a light source assembly; 3. an internal fixation module; 31. clamping a plate; 32. a clamping hole; 33. a base; 34. a second linear actuator; 35. a disperser; 351. a splint; 352. a dispersion plate; 4. an external fixation module; 41. a base; 411. a light shield; 42. a winding assembly; 421. a support plate; 422. positioning a rod; 423. a motor; 424. an anti-drop top plate; 425. a linkage distance adjusting mechanism; 5. a traversing mechanism; 51. a first linear driver; 52. a connecting plate.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses quality detection device is used in production of leaded light optic fibre.
Referring to fig. 1 and 2, a quality detection device for producing light guide fibers comprises a camera bellows group 1, a light source assembly 2, a fixing mechanism, an acquisition module and an image processing module, wherein the camera bellows group 1 comprises a first camera bellows 11 and a second camera bellows 12 which are arranged close to each other side by side and communicated with each other through a pre-opened slit; the light source assembly 2 comprises a common stable light source and a reflector in an optical fiber system, both of which are arranged in the first dark box 11, and the reflector is arranged at the front side of the stable light source, reflects light and emits the light into the second dark box 12 through a slit; the fixing mechanism is arranged in the second dark box 12 and used for fixing the optical fiber cable to be tested; the image processing module comprises an image collector and a corresponding image processing system (such as a computer provided with corresponding software) which are arranged in the second camera bellows 12, the image collector is arranged in the second camera bellows 12 and is positioned at the emergent end of the fixed optical fiber cable, and the output end of the image collector is connected with the image processing system through a transmission line which penetrates out of the second camera bellows 12.
The present application is applicable to unbundled optical fibers, bundled optical fibers/optical cables, and the bundled optical fiber A is taken as an example below
Referring to fig. 1 and 3, in order to better meet the quality detection requirement in the field optical fiber processing process, the following settings are also made in the present application:
the fixing mechanism comprises an inner fixing module 3 and an outer fixing module 4, wherein the inner fixing module 3 is arranged in the second camera bellows 12 and used for fixing the incident end and the emergent end of the optical fiber; the external fixing module 4 is disposed outside the second dark box 12 and is used for accommodating other parts of the optical fiber for detection.
Referring to fig. 4, the internal fixed module 3 includes two clamping plates 31, and the two clamping plates 31 are horizontally arranged and parallel; the card board 31 has a plurality of card holes 32.
When the optical fiber A fixing device is used, two ends of each monofilament (one optical fiber silk thread) of the optical fiber A are respectively clamped into the clamping holes 32 on the two clamping plates 31 so as to complete fixing.
In order to facilitate the clamping action, the clamping hole 32 is arranged in a shape like a Chinese character 'ba' in front view, and the big end is externally penetrated through the side part of the clamping plate 31, i.e. the monofilament can be clamped into the clamping hole 32 from the side direction; meanwhile, the card hole 32 can also adapt to optical fibers with more sizes, so that the using effect is better.
Referring to fig. 4, since the optical fiber a generally has a plurality of monofilaments, if one single optical fiber is manually operated in the fixing process, the operation is relatively complicated, and therefore, a disperser 35 is further provided in the present application;
the disperser 35 comprises two clamping plates 351, sliding grooves are formed in two side edges of one clamping plate 351, and sliding blocks of the sliding grooves matched with the two side edges of the one clamping plate 351 are turned over and formed, so that the two clamping plates realize sliding connection. The shaping has a plurality of dispersion boards 352 on the face of splint 351 towards another splint 351 that has the slider, and the direction of arranging of a plurality of dispersion boards 352 is perpendicular to two splint 351's the slip direction, and dispersion board 352 side view is right triangle and a right-angle side is fixed in a splint 351, and the hypotenuse has the splint 351 of spout towards another.
In use, the bundling head of the optical fiber a is placed on the clamping plate 351 without the dispersion plate 352, and then the other clamping plate 351 is slowly slid in from the head of the clamping plate 351, so that the bundling head is placed between the two clamping plates, and then the clamping plate 351 is continuously slid, thereby realizing the separation of the bundling. The distance between two adjacent dispersion plates 352 is designed to be the size of a monofilament, so that the bundling can be quickly and rapidly divided, and the subsequent fixation of the clamping plate 31 is facilitated. (the attached figures are for demonstration, enlarged size)
To facilitate the placement of the non-head portion of the cable, the clamp plate 351 without the dispersion plate 352 is longer and door-shaped.
Referring to FIGS. 1 and 3, in order to place the optical fiber A in the second dark box 12, a side wall of the second dark box 12 is opened and covered with an adapted side door 121.
The main body of the side door 121 is made of a light-tight flexible material such as cloth, the upper part of the main body is fixed on the upper edge of the side opening of the second dark box 12, and soft magnetic strips are fixed on each side of the main body so as to adsorb a side door frame when the side door is closed, and the side door frame can be better sealed and shielded from light.
Compared with a metal door, the flexible side door is smaller in space required by unfolding, and can be opened in a rolling mode, so that the occupied area of a station is saved.
A metal plate is embedded in the lower portion of the side door 121, and through holes for allowing the two ends of the optical fiber a to pass through are formed in the metal plate.
A slide 1211 corresponding to the two through holes on the inner wall of the metal plate, wherein the slide 1211 extends transversely, and the through holes penetrate through the slide 1211; an adaptive adjusting plate 1212 is slidably connected in the slide 1211, a plurality of adjusting holes with different apertures are formed in the adjusting plate 1212, and the center axis of a certain adjusting hole and the through hole can be concentric by sliding the adjusting plate 1212; the adjusting hole is also arranged to be conical and the conical bottom faces outwards.
Due to the arrangement, workers can allow the optical fibers A in different straight lines to pass through by changing the adjusting holes communicated with the through holes, so that different requirements can be met; meanwhile, the adjusting hole is a taper hole, so that the effect of the optical fiber A which is attached to the adjusting hole is relatively better, and the sealing and shading performance is better.
Referring to fig. 3 and 4, even though the side door 121 is large and can be rolled and opened, the worker still needs to enter the second dark box 12 to perform the loading and unloading operation on the end portion of the optical fiber a, which is relatively inconvenient, and for this reason, the clamping plate 31 is set to be separated from the second dark box 12 during loading and unloading, specifically:
a transverse moving mechanism 5 is arranged in the second camera bellows 12, and the transverse moving mechanism 5 comprises a first linear driver 51 and a connecting plate 52; the first linear driver 51 can select a linear motor or a screw rod sliding table, and the driving direction of the linear motor or the screw rod sliding table is vertical to the side door 121 in a closed state; the connecting plate 52 is fixed on the slide block of the first linear driver through a bolt, and the length of the connecting plate is parallel to the sliding direction; one end of the connecting plate 52 is fixed to the slider, and the other end extends toward the side door 121.
The internal fixing module 3 further comprises a base 33, and the base 33 is fixed at one end of the connecting plate 52 far away from the sliding block; the card 31 is disposed on the base 33.
When the end of the optical fiber a needs to be fixed by the clamping plate 31, the first linear driver 51 drives the sliding block to move towards the side door 121, so that the clamping plate 31 is arranged outside the second dark box 12, and a worker can operate the clamping plate.
Referring to fig. 4, further, a second linear driver 34 is embedded in the base 33, the driving direction of the second linear driver 34 is horizontally perpendicular to the first linear driver 51, and one of the clamping plates 31 for fixing the exit end of the optical fiber a is fixed on the sliding block of the first linear driver 51.
Referring to fig. 1 and 5, the optical fiber a that does not enter the second dark box 12 is accommodated by the external fixing module 4, and the external fixing module 4 includes a base 41 and a winding assembly 42 provided on the base 41.
The base 41 has a block structure, and serves as a base for the wire winding assembly 42.
The winding assembly 42 comprises a supporting plate 421, a positioning rod 422 and a motor 423; wherein, the supporting plate 421 is a circular plate, which is disposed on the base 41 and is rotatably connected with the base 41 through a rotating shaft fixed along the central axis; the motor 423 is installed in the base 41 and connected with the rotating shaft of the supporting plate 421 through a speed reducing motor connected to the output shaft; the positioning rods 422 are multiple and distributed around the central axis of the supporting plate 421.
In the production process, the motor 423 is started to drive the supporting plate 421 to rotate, and the positioning rod 422 is driven to rotate around the central axis of the supporting plate 421; at this time, only one end of the optical fiber a needs to be fixed to the positioning rod 422, the optical fiber a can be automatically wound, the main body of the wound optical fiber a is placed on the supporting plate 421, and the end head of the wound optical fiber a can be pulled by a user and placed in the second dark box 12 for testing.
Referring to fig. 5, further, the winding assembly 42 further includes a linkage distance adjusting mechanism 425 for driving the plurality of positioning rods 422 to be separated from or close to each other, and the linkage distance adjusting mechanism 425 includes a planar gear set, a worm gear set, and a linkage bent plate.
An upper seat surface of the supporting plate 421 is provided with an installation groove, the installation groove is of an upper opening structure, and an adaptive groove cover is fixed through a bolt at the opening; the plane gear set is arranged in the mounting groove.
The plane gear set comprises two incomplete gears which are meshed with each other, one is large and the other is small, the two gears are respectively and rotatably connected with the mounting groove, and the large gear and the supporting plate 421 have the same central axis; the worm gear and worm structure is installed in the support plate 421, wherein the worm gear is coaxially fixed on the rotation shaft of the pinion gear, and the worm penetrates out of the support plate 421 and fixes the handle.
When the worm gear is used, a worker holds the handle to rotate the worm to drive the worm gear, so that the small gear is used for driving the large gear.
Referring to fig. 5, the inside of the bull gear is vacant, and another flat ring is fixed in the central area and concentric with the central axis; the number of the linkage bent plates is the same as that of the positioning rods 422, the linkage bent plates are in a flat arc shape, and sliding openings are formed along the length of the linkage bent plates; one end of the linkage bent plate is rotatably connected with the large gear through a rotating shaft, and the other end of the linkage bent plate is erected on the flat circular ring; a vertical guide post is fixed on the flat circular ring and is arranged in a sliding opening of the linkage bent plate; the positioning rod 422 is fixed on the upper part of one end of the linkage bent plate close to the flat ring.
When the large gear rotates, the linkage bent plate rotates under the action of the guide column to drive the positioning rod 422 on the linkage bent plate to move; the locating rods 422 of a plurality of same structure installations move simultaneously, and the tracks are the same, so that the separation and gathering actions are realized, the diameter of the optical fiber A ring after winding can be adjusted conveniently by workers, and different use requirements are met.
Referring to fig. 5, in order to prevent the wound optical fiber a loop from being inadvertently loosened, etc., an anti-slip top plate 424 is further provided on the top of the positioning rod 422, and the anti-slip top plate 424 includes a fixed plate and a notch plate on the upper portion of the fixed plate; the upper part of the positioning rod 422 forms a middle rod with a slightly smaller diameter, and the fixed plate is connected with a plurality of middle rods in a sliding way; the notch plate is coaxially fixed on the upper part of the fixed plate, and an operation plate is fixed on the upper part of the notch plate; the side wall of the middle rod is provided with a clamping groove matched with the side part of the gap plate.
When the positioning device is used, the operation disc is rotated, the notch plate is rotated, the side is clamped into the clamping groove, and the fixed plate can be fixed on the upper part of the positioning rod 422; otherwise, the anti-drop top plate 424 can be removed.
Referring to fig. 5, in consideration of the need of uncapped optical fiber detection, the present application further includes a light shield 411, where the light shield 411 is disposed on the upper portion of the base 41 and has a through hole on the side for the optical fiber to extend out. When the light shield 411 is needed, the base 41 can be close to the side door 121, and the through hole of the light shield 411 is opposite to the through hole of the side door 121.
In conclusion, through the application, on the one hand, usable wire winding subassembly 42 is convoluteed the fiber optic cable, makes things convenient for follow-up transport storage, and on the other hand, it can directly carry out optical power detection etc. under the state of coiling, and goes up unloading and all can go on outside second camera bellows 12 to it is relatively convenient to use, and the suitability is higher relatively.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides a quality detection device is used in production of leaded light optic fibre, includes camera bellows group (1), light source subassembly (2), fixed establishment, collection module and image processing module, camera bellows group (1) is including first camera bellows (11) that are used for installing light source subassembly (2) and second camera bellows (12) that are used for holding optic fibre, its characterized in that: the fixing mechanism comprises an inner fixing module (3) and an outer fixing module (4);
the internal fixing module (3) is arranged on the second camera bellows (12) and comprises two clamping plates (31), and the two clamping plates (31) are parallel to each other and are respectively provided with a plurality of clamping holes (32);
the external fixing module (4) comprises a base (41) and a winding assembly (42) arranged on the base (41) and used for winding the optical fiber cable;
a side wall of the second dark box (12) is provided with an opening, a side door (121) matched with the opening in a covering mode is arranged in the opening, and a through hole for the incident end and the emergent end of the optical fiber cable to pass through is formed in the side door (121).
2. A quality detecting device for producing a light guiding optical fiber according to claim 1, characterized in that: still be provided with sideslip mechanism (5) in second camera bellows (12), sideslip mechanism (5) include first linear actuator (51), the drive direction perpendicular to side door (121) of first linear actuator (51), internal fixation module (3) still include base (33), base (33) are fixed in the removal portion of first linear actuator (51), cardboard (31) set up in base (33).
3. A quality detecting device for producing a light guiding optical fiber according to claim 2, characterized in that: and a second linear driver (34) is fixed on the base (33), the driving direction of the second linear driver (34) is horizontally vertical to the first linear driver (51), and one of the clamping plates (31) is fixed on the moving part of the second linear driver (34).
4. A quality detecting device for producing a light guiding optical fiber according to claim 2, characterized in that: the base (33) is also provided with a disperser (35) used for dispersing each optical fiber,
disperser (35) include two splint (351) that slide each other and connect, one splint (351) are provided with a plurality of dispersion boards (352) on the face of another splint (351) of orientation, and are a plurality of the direction of arranging of dispersion board (352) is perpendicular to the direction of sliding of two splint (351), dispersion board (352) side view is right triangle and a right-angle side is fixed in one splint (351), and the hypotenuse is towards another splint (351).
5. A quality detecting device for producing a light guiding optical fiber according to claim 1, characterized in that: the inner wall of the side door (121) is provided with a slide way (1211) corresponding to the two through holes, the slide way (1211) is connected with an adaptive adjusting plate (1212) in a sliding manner, and the adjusting plate (1212) is provided with a plurality of adjusting holes with different apertures; the center line of the through hole is perpendicular to the center line of the slide rail (1211).
6. A quality detecting device for producing a light guiding optical fiber according to claim 5, characterized in that: the adjusting hole is a taper hole, and the taper bottom faces the outside of the side door (121).
7. A quality detecting device for producing a light guiding optical fiber according to claim 1, characterized in that: the wire winding assembly (42) comprises a supporting plate (421), a plurality of positioning rods (422) and a motor (423) used for driving the supporting plate (421) to rotate around a central axis, the positioning rods (422) are vertically arranged on the upper plate surface of the supporting plate (421) and distributed around the central axis of the supporting plate (421), and the motor (423) is fixed on the base (41).
8. A quality detecting device for producing a light guiding optical fiber according to claim 7, characterized in that: the winding assembly (42) further comprises a linkage distance adjusting mechanism (425) for driving the positioning rods (422) to be separated or close to each other.
9. A quality detecting device for producing a light guiding optical fiber according to claim 7, characterized in that: the upper end of the positioning rod (422) is also provided with an anti-dropping top plate (424) which is detachably connected.
10. A quality detecting device for producing a light guiding optical fiber according to claim 7, characterized in that: the base (41) is also covered with a light shield (411) which is used for simultaneously covering the positioning rods (422).
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| CN202110666305.6A CN113188759A (en) | 2021-06-16 | 2021-06-16 | Quality detection device for light guide fiber production |
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| CN112623871A (en) * | 2020-12-22 | 2021-04-09 | 安徽企盈汽配股份有限公司 | Wire harness winding machine for ABS sensor |
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