CN212451201U - Optical fiber manufacturing apparatus - Google Patents

Abstract

The utility model discloses an embodiment belongs to the optic fibre field of making, in particular to optic fibre manufacture equipment, include: the tower, still include: the device comprises a material rod conveying mechanism, an optical fiber drawing furnace, a silk thread traction shaping mechanism, a coating and curing mechanism and a silk winding mechanism which are sequentially arranged on a tower frame along a preset linear direction. Compared with the prior art, the structure of the whole device is simplified, the device has higher integration level, and meanwhile, the conveying speed of the material rod conveying mechanism and the wire collecting speed of the wire collecting mechanism are controlled through the master control system, so that the phenomena of breakage and knotting of the optical fiber silk threads can not occur in the wire collecting process, and the quality of products is ensured. Meanwhile, the equipment has simple structure and lower cost, and can meet the production requirement of scientific research work on optical fibers.

Description

Optical fiber manufacturing apparatus

Technical Field

The utility model discloses an embodiment belongs to the optic fibre field of making, in particular to optic fibre manufacture equipment.

Background

Optical fibers, as a communication tool for optical signal transmission, have been widely used in various communication fields. In the manufacturing process of the optical fiber, a material rod made of quartz, silicon tetrachloride and other materials can be generally adopted and manufactured through the steps of wire drawing, coating, curing, wire collection and the like, the current wire drawing, coating, curing and wire collection are generally operated separately, namely the steps of wire drawing, coating, curing, wire collection and the like are respectively completed through corresponding equipment, so that the whole production line is too large, and due to the fact that the equipment and the equipment are completely independent, the silk thread is generally required to be sent to another equipment through a transfer mechanism or a corresponding conveying mechanism to complete the next process after the material rod or the silk thread is discharged through one equipment, and the structure of the whole production line is complex. This is because the conventional optical fiber manufacturing apparatus is mainly required for practical mass production, and does not require such a large-sized optical fiber apparatus for scientific research, and thus the conventional optical fiber drawing apparatus is not suitable for scientific research due to an excessively large volume, an excessively complicated structure, and an excessively high price.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model aims to provide an optical fiber manufacturing equipment, not only greatly reduced the whole volume of producing the line, can save corresponding transfer mechanism or conveying mechanism moreover for the structure of whole equipment is comparatively simple, has higher integrated level.

In order to achieve the above object, an embodiment of the present invention provides an optical fiber manufacturing apparatus, including:

the optical fiber drawing furnace is used for drawing the charge bar and discharging the optical fiber silk yarns obtained after drawing;

the charge bar conveying mechanism is arranged opposite to the optical fiber drawing furnace along a preset linear direction and is used for conveying the charge bar into the optical fiber drawing furnace along the preset linear direction;

the silk thread traction shaping mechanism is used for shaping the optical fiber silk thread discharged by the optical fiber drawing furnace and discharging the shaped optical fiber silk thread;

the coating and curing mechanism is arranged opposite to the silk thread traction and shaping mechanism, is used for receiving the optical fiber silk thread discharged by the silk thread traction and shaping mechanism, is also used for coating a resin protective layer on the surface of the optical fiber silk thread, curing the resin protective layer and discharging the cured optical fiber silk thread in the direction far away from the silk thread traction and shaping mechanism;

the yarn collecting mechanism is used for collecting the yarns discharged by the coating and curing mechanism;

a tower; the charge bar conveying mechanism, the optical fiber drawing furnace, the silk thread traction shaping mechanism, the coating and curing mechanism and the silk winding mechanism are all arranged on the tower and are sequentially arranged along the preset linear direction.

Compared with the prior art, the implementation mode of the utility model is that the material rod transmission mechanism, the optical fiber drawing furnace, the silk thread traction shaping mechanism, the coating and curing mechanism and the silk receiving mechanism of the optical fiber manufacturing equipment are all arranged on the tower and are arranged in sequence along the preset linear direction, the integration of each mechanism can be realized through the tower, meanwhile, the wire drawing treatment, the silk thread shaping and the coating curing of the material rod can be realized by the aid of the driving force of the material rod transmission mechanism and the silk receiving mechanism, the preparation of the optical fiber silk thread can be directly completed without any transfer or conveying mechanism when the final silk is received, the structure of the whole equipment is simplified, the equipment has higher integration level, meanwhile, the conveying speed of the material rod transmission mechanism and the silk receiving speed of the silk receiving mechanism are controlled by the main control system, and the phenomena of fracture and knotting of the optical fiber silk thread can not occur in the silk receiving process, the quality of the product is ensured. Meanwhile, the equipment has simple structure and lower cost, and can meet the production requirement of scientific research work on optical fibers.

Further, the preset linear direction is along the height direction of the tower.

Further, the tower is provided with a linear track along the preset linear direction, and the coating and curing mechanism and the silk thread traction shaping mechanism are connected with the linear track in a sliding mode.

Further, the coating and curing mechanism comprises: the coating and curing assembly is connected with the linear rail in a sliding mode and is sequentially arranged along the preset linear direction.

Further, the coating and curing assembly comprises:

an applicator, comprising: an inlet side, an outlet side opposite to the inlet side along the preset linear direction; the inlet side is used for introducing the optical fiber filament into the coating device, and the outlet side is used for discharging the optical fiber filament coated with the resin protection layer;

a curing device; the curing device is provided with a curing channel capable of leading in and discharging the optical fiber silk yarn along the preset linear direction;

a stent, the solidifier and the applicator being disposed on the stent;

and the sliding block is arranged on the bracket and is in sliding connection with the linear track.

Further, the bracket includes: an upper frame body and a lower frame body;

go up the support body and include: the upper supporting plate is parallel to the upper back plate of the tower and connected with the upper back plate, and the upper supporting plate horizontally extends in the direction departing from the tower;

the lower frame body includes: the lower support plate is parallel to a lower back plate of the tower and connected with the lower back plate, and the lower support plate horizontally extends in the direction departing from the tower;

the lower back plate is also connected with the upper back plate and vertically extends towards the direction far away from the upper supporting plate;

the lower supporting plate is opposite to the upper supporting plate, the coating device is arranged on the upper supporting plate, the curing device is arranged on the lower supporting plate, and the sliding block is arranged on one side, opposite to the tower, of the lower back plate.

Further, the silk thread traction reshaping mechanism comprises:

the diameter measuring instrument is arranged opposite to the optical fiber drawing furnace along the preset linear direction; the caliper is provided with a measuring channel which can be passed by the fiber optic thread;

the traction shaping assembly is arranged opposite to the coating and curing mechanism along the preset linear direction; the traction shaping assembly is provided with a shaping channel which is used for being passed by an optical fiber silk thread;

the support frame, the calibrator with pull the plastic subassembly and all set up on the support frame:

and the ram is arranged on the support frame and is in sliding connection with the linear track.

Further, the support frame includes: the first supporting plate and the second supporting plate are arranged oppositely and parallelly along the preset linear direction and are respectively connected with the back plate;

the diameter measuring instrument is arranged on the first supporting plate, the traction shaping assembly is arranged on the second supporting plate, and the ram is arranged on one side, opposite to the tower, of the back plate.

Drawings

Fig. 1 is a schematic structural view of an optical fiber manufacturing apparatus according to a first embodiment of the present invention;

FIG. 2 is a schematic side view of FIG. 1;

FIG. 3 is a schematic view showing a state in which a material rod is fed into an optical fiber drawing furnace by a material rod transfer mechanism according to a first embodiment of the present invention;

fig. 4 is a schematic structural view of a yarn collecting mechanism according to a first embodiment of the present invention;

FIG. 5 is a view illustrating the wire take-up assembly of FIG. 4;

FIG. 6 is a side view schematic of FIG. 5;

fig. 7 is a schematic structural view of a coating and curing assembly according to a first embodiment of the present invention;

FIG. 8 is a schematic structural view of a sealed vessel of the fiber drawing furnace according to the first embodiment of the present invention;

FIG. 9 is a schematic top view of a fiber drawing furnace according to a first embodiment of the present invention;

FIG. 10 is a cross-sectional view taken at C-C of FIG. 9;

FIG. 11 is a cross-sectional view taken at D-D of FIG. 9;

FIG. 12 is a schematic view of the assembly of the coating and curing mechanism and the tower according to the first embodiment of the present invention;

fig. 13 is an assembly schematic view of the wire drawing and shaping mechanism and the tower frame according to the first embodiment of the present invention;

fig. 14 is a schematic structural view of a wire traction shaping mechanism according to the first embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the following will explain in detail each embodiment of the present invention with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in various embodiments of the invention, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solutions claimed in the claims of the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments.

A first embodiment of the present invention relates to an optical fiber manufacturing apparatus, as shown in fig. 1 and 2, including: the device comprises an optical fiber drawing furnace 1, a charge bar conveying mechanism 2, a silk thread traction shaping mechanism 8, a coating and curing mechanism 3, a silk winding mechanism 4 and a tower 5. As shown in fig. 1 and 2, the charge bar conveying mechanism 2, the optical fiber drawing furnace 1, the filament drawing and shaping mechanism 8, the coating and curing mechanism 3, and the filament collecting mechanism 4 are all arranged on the tower 5 and are sequentially arranged along a preset linear direction.

As shown in fig. 1 and 2, the material rod conveying mechanism 2 and the optical fiber drawing furnace 1 are arranged opposite to each other along a preset linear direction, and in practical application, the material rod 6 can be fed into the optical fiber drawing furnace 1 along the preset linear direction by the material rod conveying mechanism 2. Next, the fed material rod 6 is drawn in the optical fiber drawing furnace 1, and the optical fiber yarn 9 obtained by the drawing is discharged to the yarn drawing and shaping mechanism 8. And then, shaping the optical fiber yarns by the yarn drawing and shaping mechanism 8, discharging the shaped optical fiber yarns 9 to the coating and curing mechanism 8, wherein the coating and curing mechanism 3 is arranged opposite to the yarn drawing and shaping mechanism 8 and can receive the optical fiber yarns 9 discharged by the yarn drawing and shaping mechanism 8, and the coating and curing mechanism 3 is also used for coating a resin protective layer on the surface of the optical fiber yarns 9, curing the resin protective layer and discharging the cured optical fiber yarns in a direction away from the optical fiber drawing furnace 1. Finally, the fiber take-up mechanism 4 can take up the optical fiber yarns 9 discharged by the coating and curing mechanism 3.

It can be seen from the above that, because the material rod conveying mechanism 2, the optical fiber drawing furnace 1, the silk thread traction shaping mechanism 8, the coating and curing mechanism 3 and the silk receiving mechanism 4 of the optical fiber manufacturing equipment are all arranged on the tower 5 and are sequentially arranged along the preset linear direction, the tower 5 can realize the integration of all the mechanisms, meanwhile, the drawing treatment, the silk thread shaping and the coating curing of the material rod 6 can be realized by the driving force of the material rod conveying mechanism 2 and the silk receiving mechanism 4, the preparation of the optical fiber silk thread 9 can be directly completed by the final silk receiving without any transfer or conveying mechanism, the structure of the whole equipment is simplified, the whole equipment has higher integration level, and meanwhile, the conveying speed of the material rod conveying mechanism 2 and the silk receiving speed of the silk receiving mechanism 4 are controlled by the main control system, so that the fracture and knotting phenomena of the optical fiber thread 9 can not occur in the silk receiving process, the quality of the product is ensured. Meanwhile, the equipment has simple structure and lower cost, and can meet the production requirement of scientific research work on optical fibers.

Specifically, in the present embodiment, as shown in fig. 3, the material bar transfer mechanism 2 includes: a material bar clamping assembly 21 and a driving assembly 22 which are arranged on the tower 5. Wherein, the material bar clamping assembly 21 is connected with the tower 5 in a sliding manner, so that the material bar clamping assembly 21 can slide on the tower 5 along a preset linear direction, and the material bar clamping assembly 21 is also used for clamping and fixing the material bar 6. Meanwhile, the driving assembly 22 is connected with the material bar clamping assembly 21 and is used for driving the material bar clamping assembly 21 to slide along the preset linear direction. Further, in the present embodiment, as shown in fig. 3, the driving unit 22 includes: the screw rod 221, the belt wheel transmission set 222 arranged on the tower 5 and the motor 223. The screw 221 passes through the material bar clamping assembly 21 along a preset linear direction and is connected with the material bar clamping assembly 21. Meanwhile, the output end of the pulley transmission set 222 is connected with the lead screw 221, and the input end of the corresponding pulley transmission set 222 is connected with the main shaft of the motor 223, in practical application, as shown in fig. 3, the motor 223 can be connected with the main control system in a communication manner, and the motor 223 is controlled by the main control system, so that the motor 223 can drive the pulley transmission set 222 to further drive the lead screw 221 to rotate. And the corresponding bar clamping assembly 21 can slide on the tower 5 along the preset linear direction under the rotation motion of the screw rod 221.

As shown in fig. 3, the pulley transmission set 222 used in the present embodiment includes: the driving wheel 2221, the driven wheel 2222, and the belt 2223 connecting the driving wheel 2221 and the driven wheel 2222, wherein the driving wheel 2221 can be used as a power input end to be coaxially connected with the motor 223, and the driven wheel 2222 can be used as a power output end to be coaxially connected with the screw rod 221. Furthermore, in order to realize the sliding of the material bar holding assembly 21 on the tower 5, as shown in fig. 1, the rail 7 is arranged on the tower 5 along a preset linear direction, and the corresponding material bar holding assembly 21 comprises: the slide block 211 is slidably disposed on the rail 7, and the clamping member 212 is disposed on the slide block 211, and meanwhile, the slide block 211 can be in threaded connection with the lead screw 221, so that the slide block 211 can slide along the rail 7 under the rotation motion of the lead screw 221, thereby realizing the feeding of the material rod 6 into the optical fiber drawing furnace 1 by the clamping member 212.

In addition, in order to match the conveying of the material bar by the material bar conveying structure 2, as shown in fig. 4, 5 and 6, the wire take-up mechanism 4 adopted in the present embodiment specifically includes: a tension pulley assembly 41 and a wire take-up assembly 42 arranged on the tower 5. The tensioning wheel assembly 41 is arranged opposite to the coating and curing mechanism 3 along the preset linear direction, the wire collecting assembly 42 is used for collecting the optical fiber wires 9, and the wire collecting assembly 42 is further in communication connection with the main control system. In operation, as shown in fig. 4, the tensioning wheel assembly 41 is used to tension the fiber optic thread 9 discharged by the coating and curing mechanism 3 and discharge the fiber optic thread 9 in the direction of the take-up assembly 42.

Specifically, as shown in fig. 4, the tension pulley assembly 41 includes: a main tension pulley 411, a first secondary tension pulley 412 and a second secondary tension pulley 413, wherein, as shown in fig. 4, the main tension pulley 411 and the first secondary tension pulley 412 are rotatably arranged on the tower 5, and the first secondary tension pulley 412 is arranged opposite to the main tension pulley 411 along the direction perpendicular to the preset straight line direction, and the second secondary tension pulley 413 is arranged opposite to the main tension pulley 411 along the preset straight line direction. Next, as shown in fig. 4, the tension pulley assembly 41 further includes: swing arm 414, balance bar 415, and counterweight 416. One end of the swing arm 414 is rotatably connected to the first slave tension wheel 412, and the other end of the swing arm 414 is rotatably connected to the second slave tension wheel 413. In addition, as shown in fig. 4, a balance bar 415 is fixedly connected with the swing arm 414, and the balance bar 415 horizontally extends in a direction away from the main tension wheel 411, and a weight 416 is provided on the balance bar 415 and is slidable in a length direction of the balance bar 415. Furthermore, in order to achieve the requirement of tensioning the optical fiber wire 9 by the entire tension pulley assembly 41, as can be seen from fig. 4, the first secondary tension pulley 412 and the second secondary tension pulley 413 are spaced apart from the main tension pulley 411, respectively forming a gap through which the optical fiber wire 9 can be wound around the main tension pulley 411. In actual operation, as shown in fig. 4, a worker may slide a weight 416 on a balance bar 415, so that a swing arm 414 may use the center of the first secondary tension wheel 412 as a pivot point to drive the second secondary tension wheel 413 to move relative to the main tension wheel 411, so as to achieve the purpose of adjusting the gap between the second secondary tension wheel 413 and the main tension wheel 411, thereby effectively changing the tension of the tension wheel assembly 41 on the fiber optic thread 9, so as to meet the requirements of different fiber optic threads 9 during reeling. Furthermore, as a preferable scheme, in the present embodiment, in order to enable the balance bar 415 to effectively drive the swing arm 414 to swing under the action of the counterweight 416, as shown in fig. 4, an end of the swing arm 414 connected to the first slave tensioning wheel 412 is fixedly connected to an end of the balance bar 415, so that an end of the swing arm 414 connected to the first slave tensioning wheel 412, an end of the first slave tensioning wheel 412 and an end of the balance bar 415 may all be coaxially arranged at a wheel center of the first slave tensioning wheel 412, thereby ensuring that the balance bar 415 has a maximum moment under the action of the counterweight 416 to drive the swing arm 414 to swing.

In the present embodiment, as shown in fig. 4, the swing arm 414 is an arc-shaped swing arm, that is, any end of the swing arm 414 extends toward the other end to bend with an arc curvature of the tension wheel 411, so that when the swing arm 414 drives the second tension wheel 413, the tension wheel 411 is maintained not to interfere with the swing arm 414.

In addition, in order to realize the winding of the optical fiber filament 9 by the filament winding assembly 42, as shown in fig. 4, 5 and 6, the filament winding assembly 42 used in the present embodiment specifically includes: roller 421, pivot 422, rotary drive member 423, bracket 424. As shown in fig. 6, the rotating shaft 422 is inserted into the 421 roller and coaxially fixed to the roller 421, the rotary driving member 423 is connected to the rotating shaft 422, and the rotary driving member 423 is also in communication connection with the main control system, so that the rotary driving member 423 can drive the roller 421 to rotate through the rotating shaft 422 under the control of the main control system, and the roller 421 can wind the optical fiber filament 9 discharged through the tension pulley assembly 41 when rotating, thereby achieving the filament winding of the optical fiber filament 9. Meanwhile, as shown in fig. 4, the bracket 424 is disposed on any side of the tower 5 in the direction perpendicular to the preset straight line, the bracket 424 supports the rotating shaft and is rotatably connected with the rotating shaft, that is, a shaft sleeve (not shown) is disposed between the bracket 424 and the rotating shaft 422, so that the bracket 424 can effectively support the rotating shaft 422, and the rotating performance of the rotating shaft 42 is not affected by the shaft sleeve, thereby ensuring that the roller 421 can normally perform wire winding operation. In the present embodiment, the rotary drive member 423 may use a motor as a drive element to rotate the rotary shaft 422.

Further, as shown in fig. 4 and 5, in the present embodiment, the yarn take-up unit 42 preferably further includes: a base 425 disposed at the bottom of the bracket 424, and a linear actuator 428 disposed on the base 425. Wherein the bracket 424 is slidable on the base 425 along the axial direction of the rotating shaft 422, that is, the bottom of the bracket 424 is provided with an upper rail 426, the top of the base 425 is provided with a lower rail 427, and the upper rail 426 is slidably connected with the lower rail 427, so that the bracket 424 can be wire-slid on the base 425 along the axial direction of the rotating shaft 422 by means of the sliding fit of the upper rail 426 and the lower rail 427. The linear actuator 428 is connected to the carriage 424, as shown in fig. 5, and serves as a power source for driving the carriage 424 to slide up and down on the base 425, and the linear actuator 428 is also connected to the main control system in communication, so that the linear actuator 428 can drive the carriage 424 to slide under the control of the main control system. In this embodiment, the linear driving member 428 may include: a motor 4281 and a ball screw 4282, and the ball screw 4282 is connected with the bracket 424, thereby achieving sliding of the bracket 424.

Further, it is to be noted that, in the present embodiment, as shown in fig. 1, 2, and 7, the coating and curing mechanism 3 includes: at least one coating and curing unit 31, each coating and curing unit 31 being arranged in a predetermined linear direction on the tower 5. Specifically, in the present embodiment, as shown in fig. 7, the coating and curing unit 31 includes: an applicator 311 and a curing apparatus 312. And, the applicator 311 includes: an inlet side 3111, an outlet side 3112 opposite to the inlet side 3111 in a predetermined linear direction. Of these, the entrance side 3111 is used for introducing the optical fiber thread 9 into the coater 311, and the exit side 3112 is used for discharging the optical fiber thread 9 coated with the resin protective layer. While a curing channel (not shown) is provided in the corresponding curing unit 312 along a predetermined linear direction for introducing and discharging the optical fiber thread 9. In practice, the fiber optic strand 9 exiting the fiber drawing furnace 1 may enter the applicator 311 through the inlet side 3111 of the applicator 311, be coated with a resin protective layer on the fiber optic strand 9 by the applicator 311, and then exit through the outlet side 3112 of the applicator 311 and enter the curing channel of the curing apparatus 312. In the present embodiment, the curing device 312 is a photo-curing device, that is, a UV lamp is provided in the curing tunnel, and the fiber yarn 9 is irradiated with light from the UV lamp in the curing tunnel, thereby curing the yarn resin protective layer. When the coating and curing mechanism 3 is composed of a plurality of curing assemblies 31, as shown in fig. 1 and 2, the optical fiber thread 9 may pass through a plurality of coating and curing steps of the resin protective layer, so that the toughness and strength of the optical fiber thread 9 may be further improved.

Further, as a preferable mode, in the present embodiment, as shown in fig. 1 and 2, the coating and curing mechanism 3 is slidable on the tower 5 in a predetermined linear direction, that is, each coating and curing unit 31 in the coating and curing mechanism 3 is slidable on the tower 5 in the predetermined linear direction, the predetermined linear direction is a height direction of the tower 5 in the present embodiment, specifically, the linear rail 10 may be provided on the tower 5, and each coating and curing unit 31 in the present embodiment further includes, as shown in fig. 12: a bracket 313 and a slider 314 disposed on the bracket 313. As shown in fig. 12, the curing device 312, the coating device 311, and the slider 314 are disposed on the bracket 313, and the slider 314 is slidably connected to the linear rail 10. It is to be noted that, in the present embodiment, as shown in fig. 2 and 12, the support 313 includes: an upper frame 3131 and a lower frame 3132, wherein the upper frame 3131 is composed of an upper back plate 31311 and an upper support plate 31312, and the lower frame 3132 is composed of a lower back plate 31321 and a lower support plate 31322. Wherein the upper back plate 31311 is disposed parallel to the tower 5, and the upper support plate 31312 is connected to the upper back plate 31311 and extends horizontally in a direction away from the tower 5. While the corresponding lower back plate 31321 is also arranged parallel to the tower 5, while the lower support plate 31322 is connected to the lower back plate 31321 and extends horizontally away from the tower 5, such that the lower support plate 31322 and the upper support plate 31312 are opposite to each other. Therefore, as can be seen from fig. 12, the coating device 311 can be disposed on the upper support plate 31312, the curing device 312 can be disposed on the lower support plate 31322, and the sliding block 314 can be disposed on the side of the lower back plate 31321 opposite to the tower 5, so that in practical applications, the bracket 313 can slide along the height direction of the tower 5 by the sliding fit of the neglected block 314 and the linear rail 10.

In addition, after any one of the coating and curing assemblies 31 slides to the corresponding position of the tower 5, the whole coating and curing assembly 31 can be fixed on the tower 5 by locking the sliding block 314 and the linear rail 10, for example, a plurality of threaded holes (not shown in the drawings) can be formed in both sides of the linear rail 10 along a preset linear direction in advance, through holes (not shown in the drawings) which can be matched with the threaded holes are formed in the sliding block 314, and the sliding block 314 can be fixed on the linear rail 10 by screwing locking members such as bolts and the like with the through holes and the threads of any one of the threaded holes. Therefore, the optical fiber manufacturing equipment can meet the preparation requirements of optical fiber drawing under different scenes.

In order to achieve the drawing process of the optical fiber drawing furnace 1 on the charge bar 6, in the present embodiment, as shown in fig. 9, 10, and 11, the optical fiber drawing furnace 1 includes: a heat preservation cylinder 11, a heating body 12 inserted into the heat preservation cylinder 11, wherein the heating body 12 and the heat preservation cylinder 11 are coaxially arranged. Wherein, the heat preservation cylinder 11 is provided with a feed inlet 111 along the axial direction, and the heating body 12 forms a material rod insertion channel 121 opposite to the feed inlet 111 and a wire outlet channel 122 communicated with the material rod insertion channel 121 along the axial direction.

As shown in fig. 8, 10, and 11, the optical fiber drawing furnace 1 according to the present embodiment further includes: a closed vessel 13, the closed vessel 13 comprising: a cylinder 131 for accommodating the heating body 12 and the heat insulating cylinder 11, a top plate 132 for closing the top opening of the cylinder 131, and a bottom plate 133 for closing the bottom opening of the cylinder 131. As shown in fig. 8, 10, and 11, the optical fiber drawing furnace according to the present embodiment further includes: a feed pipe joint 14 provided on the top plate 132, a discharge pipe joint 15 provided on the bottom plate 133, a first intake pipe 16 provided on the cylinder 131, and a second intake pipe 17 provided on the bottom plate 133. Wherein, the feeding pipe joint 14 is coaxially arranged with the feeding hole 111 of the heat preservation cylinder 11, and the discharging pipe joint 15 is communicated with the wire outlet channel 122 of the heating body 12 and coaxially arranged. Also, in the present embodiment, as shown in fig. 10 and 11, the feed pipe joint 14 further has a gas inlet end 141 for introducing the shielding gas, the gas inlet end 141 can be used for introducing the shielding gas into the feed pipe joint 14, and the first gas inlet pipe 16 and the second gas inlet pipe 17 are respectively used for introducing the shielding gas into the barrel 131.

Therefore, after the material rod 6 enters the heating body 12 through the feeding pipe joint 14 on the top plate 132, the material rod 6 can be melted by the heating body 12, so that the melted medium can be formed through the wire outlet channel 122 and discharged to form the optical fiber wire 9. In addition, in practical application, as shown in fig. 10 and 11, the first air inlet pipe 16, the second air inlet pipe 17 and the air inlet end 141 on the feeding pipe joint 14 can be respectively connected with a gas protection device, the gas protection device can respectively convey the protective gas to the feeding pipe joint 14, the interior of the barrel 131 and the bottom of the barrel 131, and the protective gas entering the barrel 131 can be respectively discharged from the feeding pipe joint 14, so that the barrel 131 can be always filled with the protective gas, and external air is effectively prevented from entering the interior of the barrel 131 from the feeding pipe joint 14 on the top plate 132 and the discharging pipe joint 15 on the bottom plate 133, thereby effectively protecting the heat preservation barrel 11 and the heating body 12.

Specifically, in the present embodiment, as shown in fig. 10 and 11, the feed pipe joint 14 includes: a main body feeding pipe 142 passing through and fixed on the top plate 132, and an air inlet sleeve 143 sleeved on the main body feeding pipe 142. Wherein the main body feeding pipe 142 is communicated with the cylinder 131, and the air inlet sleeve 143 is spaced apart from the main body feeding pipe 142 to form an air chamber 144. In addition, as shown in fig. 10 and 11, the main body feeding pipe 142 is further provided with air holes 145, each air hole 145 communicates with the air cavity 144 and the main body feeding pipe 142, and the air inlet end 141 is provided on the air inlet sleeve 143. In practical application, as shown in fig. 10, the gas inlet 141 can be connected to a gas protection device, and the shielding gas can be introduced into the main feeding pipe 142 from the gas cavity 144 through the gas holes 145 through the gas inlet 141, and meanwhile, since the shielding gas is generally inert gas and has light weight, the shielding gas entering the main feeding pipe 142 can be directly discharged from the rod insertion side of the main feeding pipe 142, so that the external air is effectively prevented from entering the barrel 131 through the main feeding pipe 142. Also, preferably, in the present embodiment, as shown in fig. 10 and 11, the main body feeding pipe 142 is coaxially disposed with the air inlet sleeve 143, so that the shielding gas entering the main body feeding pipe 142 from the air chamber 144 can uniformly fill the main body feeding pipe 142, and further the possibility of the external air entering the drum 131 is reduced.

Similarly, as shown in fig. 10 and fig. 11, since the first air inlet pipe 16 and the second air inlet pipe 17 are respectively disposed on the barrel 131 and the bottom plate 133, and the first air inlet pipe 16 and the second air inlet pipe 17 are respectively connected to the gas protection device, the protective gas can be delivered to the inside of the barrel 131 by means of the first air inlet pipe 16 and the second air inlet pipe 17, so that the protective gas can be uniformly distributed in the whole barrel 131, and the phenomenon that the protective gas is discharged from the main body feed pipe 142 of the feed pipe joint 14 in advance due to light mass is effectively avoided, and the bottom of the barrel 131 is not filled with the protective gas, thereby effectively preventing the external air from entering the barrel 131 from the discharge pipe joint 15, and further avoiding the oxidation phenomenon caused to the heat preservation barrel 11 and the heating body 12.

However, in the present embodiment, as shown in fig. 10, the first air intake duct 16 is inserted and fixed to the cylindrical body 131 in the direction perpendicular to the axial direction of the cylindrical body 131, and the first air intake duct 16 faces the heat insulating cylinder 11. Of course, the first air inlet pipe 16 may be provided with a plurality of pipes, and may be arranged around the axis of the cylinder 131 at equal intervals. Therefore, it can be seen that, the protective gas is conveyed into the cylinder 131 through the first air inlet pipes 16, so that the protective gas 31 filled in the cylinder 131 is distributed more uniformly, and the heating body 12 and the heat preservation cylinder 1 are further prevented from being influenced by the outside air.

It should be noted that, in the present embodiment, the thermal insulation barrel 11 is a carbon felt thermal insulation barrel, and, as shown in fig. 10 and 11, one side of the thermal insulation barrel 11 relative to the bottom plate 133 is an opening side (not labeled in the figures), that is, the opening side is located at the bottom of the thermal insulation barrel 11, the heating body 12 can be inserted into the thermal insulation barrel 11 from the opening side of the bottom of the thermal insulation barrel 11, and the corresponding feed port 111 on the thermal insulation barrel 11 is opened at the top of the thermal insulation barrel 11, so that the feed port 111 of the thermal insulation barrel 11 is located between the feed pipe joint 14 and the heating body 12. In order to realize the wire drawing treatment of the heating body 12 on the material rod, as shown in fig. 10 and 11, the heating body 12 includes: a heating body 123 forming the rod insertion passage 121 and the filament discharge passage 122, and a positive electrode connecting arm 124 and a negative electrode connecting arm 125 horizontally extending from the heating body 123 toward the cylindrical wall of the cylindrical body 131. Meanwhile, the heating body 123 is inserted into the heat-insulating cylinder 11, and the positive connecting arm 124 and the negative connecting arm 125 are both exposed outside the heat-insulating cylinder 1 and located between the heat-insulating cylinder 11 and the bottom plate 133, and the positive connecting arm 124 and the negative connecting arm 125 are symmetrically arranged with the axis of the heating body 12. Therefore, in order to satisfy the heating requirement of the heating body 12 for the material rod, as shown in fig. 9 and 10, the optical fiber drawing furnace of the present embodiment further includes: the first electrode connecting arm 18 and the second electrode connecting arm 19 are arranged, the first electrode connecting arm 18 is partially inserted into the cylinder 131 along the axis perpendicular to the cylinder 131 and is connected with the anode connecting arm 124, the second electrode connecting arm 19 is partially inserted into the cylinder 131 along the axis perpendicular to the cylinder 131 and is connected with the cathode connecting arm 125, so that the first anode connecting arm 124 and the cathode connecting arm 125 of the heating body 12 can be respectively externally connected with a power supply through the first electrode connecting arm 18 and the second electrode connecting arm 19, the heating requirement of the heating body 123 on the material rod is realized, and the heating body 12 can be effectively supported and fixed by means of the first electrode connecting arm 18 and the second electrode connecting arm 19.

Furthermore, as can be seen from the above, since the heating body 12 is inserted into the insulating cylinder 11 from the opening side of the bottom of the insulating cylinder 11, the positive electrode connecting arm 124 and the negative electrode connecting arm 125 of the heating body 12 are both located below the insulating cylinder 1, and the protective gas delivered into the cylinder 131 through the second gas inlet pipe 17 provided on the bottom plate 133 of the cylinder 131 can directly protect the positive electrode connecting arm 124 and the negative electrode connecting arm 125 of the heating body 12.

Further, as shown in fig. 11, the optical fiber drawing furnace 1 of the present embodiment preferably further includes: an insertion tube 110 and an infrared detector 120. Wherein the insertion tube 110 is partially inserted into the cylinder 131 in a direction perpendicular to the axial direction of the cylinder 131 and communicates with the cylinder 131 of the hermetic container 13, and the infrared detector 120 has an infrared detecting end 1201, and the infrared detecting end 1201 is positioned in the insertion tube 110 for detecting the temperature in the cylinder 131 in real time through the insertion tube 110. In addition, in order to protect the infrared detector 120, the insertion tube 110 is provided with an air inlet 1101, the air inlet 1101 can be communicated with the cylinder 131 through the insertion tube 110, and in practical application, the air inlet 1101 can be connected to a gas protection device, and protective gas can be delivered into the insertion tube 110 through the air inlet 1101 by the gas protection device, so that the infrared detector 120 can be protected.

In addition, in the present embodiment, as shown in fig. 10 and 11, the first electrode connecting arm 18 has a first water inlet 181 and a first water outlet 182. Also, a first water cooling channel 183 is provided in the first electrode connecting arm 18. The first water-cooling channel 183 is a winding channel extending from the root of the first electrode connecting arm 18 to the head, and one end of the first water-cooling channel 183 is connected to the first water inlet 181, and the other end of the first water-cooling channel 183 is connected to the first water outlet 182.

Correspondingly, as shown in FIGS. 10 and 11, the second electrode connecting arm 19 has a second water inlet 191 and a second water outlet 192, and the second electrode connecting arm 19 also has a second water cooling channel 193 therein. The second water-cooling channel 193 is a winding channel extending from the root of the second electrode connecting arm 19 to the head, and one end of the second water-cooling channel 193 is communicated with the second water inlet 191, and the other end of the second water-cooling channel 193 is communicated with the second water outlet 192.

Therefore, in practical application, the first water inlet 181 and the first water outlet 182 of the first electrode connecting arm 18 and the second water inlet 191 and the second water outlet 192 of the second electrode connecting arm 19 can be connected to the coolant circulating device, so that the coolant circulating device can realize the circulation of the coolant in the first electrode connecting arm 18 by means of the first water inlet 181, the first water outlet 182 and the first water cooling channel 183, and the coolant circulating device can realize the circulation of the coolant in the second electrode connecting arm 19 by means of the second water inlet 191, the second water outlet 192 and the second water cooling channel 193, so that the first electrode connecting arm 18 and the second electrode connecting arm 19 are cooled, and the first electrode connecting arm 18 and the second electrode connecting arm 19 are protected.

Further, in order to avoid damage to the closed vessel 13 due to heat generated by the heating body 12 when heating the billet, in the present embodiment, as shown in fig. 10 and 11, the top plate 132, the bottom plate 133, and the cylindrical body 131 may be cooled by a coolant circulation device in the closed vessel 13.

Specifically, as shown in fig. 10 and 11, the top plate 132 is provided with an upper water inlet 1321 and an upper water outlet 1322, and the top plate 132 is provided with an upper water cooling passage 1323 communicating the upper water inlet 1321 and the upper water outlet 1322. The upper inlet 1321 and the upper outlet 1322 are located on both sides of the top plate 132 in a direction perpendicular to the axis of the cylinder 131. That is, the upper inlet 1321 and the upper outlet 1322 are symmetrically disposed on the top plate 132 with the axis of the cylinder 131 as a symmetry axis, and one end of the corresponding upper water cooling passage 1323 communicates with the upper inlet 1322 and the other end communicates with the upper outlet 1322. In practical applications, as shown in fig. 11, the upper water inlet 1321 and the upper water outlet 1322 may be connected to the cooling liquid circulating device, so that the cooling liquid circulating device may circulate the cooling liquid through the upper water cooling passage 1323 by means of the upper water inlet 1321, the upper water outlet 1322 and the upper water cooling passage 1323, thereby cooling the top plate 132. Of course, as an alternative, the upper water inlet 1321 and the upper water outlet 1322 may be respectively located on the same side of the top plate 132 in the direction perpendicular to the axis of the cylinder 131, and the corresponding upper water cooling passage 1323 may be a winding passage arranged in the direction perpendicular to the axis of the cylinder 131, in this way, the cooling of the top plate 132 may be realized as well.

In addition, the bottom plate 133 may have the same structural design as the top plate 132, specifically, as shown in fig. 10 and 11, a lower water inlet 1331 and a lower water outlet 1332 are formed on the bottom plate 133, and a lower water cooling channel 1333 communicating the lower water inlet 1331 and the lower water outlet 1332 is formed in the bottom plate 133. And, the lower water inlet 1331 and the lower water outlet 1332 are respectively located at both sides of the bottom plate 133 in a direction perpendicular to the axis of the cylinder 131. That is, the lower water inlet 1331 and the lower water outlet 1332 are symmetrically disposed on the bottom plate 133 with the axis of the barrel 131 as a symmetry axis, and one end of the corresponding lower water cooling passage 1333 is communicated with the lower water inlet 1331, and the other end is communicated with the lower water outlet 1332. In practical applications, as shown in fig. 10 and 11, the lower water inlet 1331 and the lower water outlet 1332 may be connected to the cooling liquid circulation device, so that the cooling liquid circulation device can realize the circulation and transportation of the cooling liquid in the lower water cooling channel 1333 by the lower water inlet 1331, the lower water outlet 1332 and the lower water cooling channel 1333, thereby realizing the cooling of the bottom plate 133. Of course, as an alternative, the lower water inlet 1331 and the lower water outlet 1332 may be respectively located on the same side of the bottom plate 133 along the direction perpendicular to the axis of the barrel 131, and the corresponding lower water cooling passage 1333 may be a winding passage arranged perpendicular to the axis of the barrel 131, in this way, the cooling of the bottom plate 133 can be realized.

Note that, in the present embodiment, as shown in fig. 10 and 11, the cylindrical body 131 includes: an outer cylinder 1311, an inner cylinder 1312 coaxial with and opposed to the outer cylinder 1311, and a cooling chamber 1313 formed between the inner cylinder 1312 and the outer cylinder 1311. Meanwhile, the outer barrel 1311 has a water inlet end 1314 and a water outlet end 1315, and the water inlet end 1314 and the water outlet end 1315 are disposed along the axial direction of the barrel 131, specifically, the water inlet end 1314 is disposed at the bottom of the outer barrel 1311, and the water outlet end 1315 is disposed at the top of the outer barrel 1311. Therefore, in practical application, the water inlet end 1314 and the water outlet end 1315 can be connected with the cooling liquid ring device, so that the cooling medium entering the cooling cavity 1313 can continuously rise and can be discharged from the water outlet end 1315 when rising to the top of the cylinder 131, and can return to the cooling liquid circulating device again, so that the whole cooling cavity 1313 can be filled with the cooling medium all the time, the cylinder 131 can be cooled continuously, the cylinder 131 is prevented from being affected by the high temperature generated by the heating body 12 during heating, and the service life of the cylinder 131 is prolonged.

Moreover, it should be noted that, in order to meet different connection requirements of the water inlet end 1314 and the water outlet end 1315, the water inlet end 1314 and the water outlet end 1315 may be disposed on the same side of the outer cylinder 1311 along the axis perpendicular to the cylinder 131, or the water inlet end 1314 and the water outlet end 1315 may be disposed on two opposite sides of the outer cylinder 1311, respectively, so that the optical fiber drawing furnace has a wider application scenario.

In addition, in the present embodiment, as shown in fig. 13 and 14, the above-mentioned thread pulling and shaping mechanism 8 includes: a diameter gauge 81, a traction shaping assembly 82, a support frame 84 and a ram 83. Wherein, calliper 81, traction plastic subassembly 82 and ram 84 all set up on support frame 84, and simultaneously, ram 83 and linear rail 10 sliding connection. Furthermore, the caliper 81 is arranged opposite the fiber drawing furnace 1 in a predetermined linear direction, and the caliper 81 has a measuring channel 811 for the passage of the fiber thread 9, while the corresponding drawing and shaping assembly 82 is arranged opposite the coating and curing device 3 in a predetermined linear direction, and the drawing and shaping assembly 3 has a shaping channel for the passage of the thread.

Specifically, as shown in fig. 2 and 13, the support bracket 84 includes: backplate 841, along predetermineeing sharp opposite and parallel arrangement's first backup pad 842 and second backup pad 843, and first backup pad 842 and second backup pad 843 are connected with backplate 841 respectively to the orientation that keeps away from tower 5 is horizontal to extend. Wherein, the diameter gauge 81 is arranged on the first supporting plate 842, the traction shaping assembly 82 is arranged on the second supporting plate 843, and the ram 83 is arranged on one side of the back plate 841 relative to the tower 5, so that the whole wire traction shaping mechanism 8 can slide along the height direction of the tower 5.

In addition, in order to satisfy the measurement of the outer diameter of the optical fiber thread, as shown in fig. 14, at least one guide wheel 812 for guiding the optical fiber thread 9 is disposed in the measurement channel 811 of the caliper 81 along a predetermined linear direction, and a guide groove 813 into which the optical fiber thread 9 can be inserted is formed on an outer circumferential surface of each guide wheel 812. Meanwhile, when a plurality of guide wheels 812 are disposed in the measurement channel 811, the guide wheels 812 are spaced apart from each other to form a detection area (not shown).

Further, as shown in fig. 14, the traction shaping unit 82 used in the present embodiment includes: a fixed rotating wheel 821, a movable rotating wheel 822 and a fixed frame 825. The fixing frame 825 is disposed on the second supporting plate 843 and has a connecting plate 8251 parallel to the back plate 841. Next, the fixed turning wheel 821 and the movable turning wheel 822 are oppositely disposed in a direction perpendicular to the predetermined straight line, and meanwhile, the fixed turning wheel 821 is rotatably disposed on the connection plate 8251, and the movable turning wheel 822 is slidable with respect to the fixed turning wheel 821.

In order to realize the sliding of the movable roller 822, as shown in fig. 14, the traction shaping assembly 82 further includes: a track 823 and a slider 824. Among them, the rail 823 is provided on the connection plate 8251, and the rail 823 is formed to extend horizontally in a direction perpendicular to a predetermined straight line, that is, the rail 823 is formed to extend horizontally in a direction perpendicular to the height direction of the tower 5. In addition, the slider 824 is placed on the rail 823 and is slidable in the extending direction of the rail 823. And the corresponding movable roller 822 is rotatably disposed on the sliding block 824 so as to be capable of performing a linear motion with respect to the fixed roller 821 by the sliding of the sliding block 824.

In order to reshape the optical fiber yarn 9, in the present embodiment, as shown in fig. 14, a first shaping groove (not shown) is formed in an outer circumferential surface of the fixed pulley 821, a second shaping groove (not shown) is formed in an outer circumferential surface of the movable pulley 822, and the first shaping groove and the second shaping groove together form a reshaping region (not shown) through which the yarn can pass. In the actual operation process, the diameter measuring instrument 81 adopts an infrared diameter measuring instrument, when the optical fiber silk thread 9 is discharged from the optical fiber drawing furnace 1, the outer diameter of the optical fiber silk thread 9 can be measured by the diameter measuring instrument 81, and a worker can adjust the position of the sliding block 824 according to the obtained size data, so that the distance between the movable rotating wheel 822 and the fixed rotating wheel 821 is changed, and the cross section shape of the optical fiber silk thread 9 can meet the uniform process preparation requirement.

In addition, as a preferable mode, in order to adjust the distance between the movable rotating wheel 822 and the fixed rotating wheel 821 more precisely, in the present embodiment, as shown in fig. 14, the traction shaping assembly 82 further includes: a drive member 825 arranged on the tower 5, the drive member 825 being connected to the slider 824 for driving the slider 824 to slide along the track 823. Specifically, as shown in fig. 14, the driving member 825 is a manual driving member, that is, the manual driving member includes: a push rod 8251 connected with the slide block 824, a micrometer 8252 arranged on the tower 5, wherein the micrometer 8252 is abutted against the push rod 8251. In the practical application process, a worker can push the push rod 8251 by rotating the micrometer 8252, so that the sliding distance of the sliding block 824 is accurately controlled, and the size progress of the outer diameter of the optical fiber wire 9 after drawing and forming is further improved.

It will be understood by those skilled in the art that the foregoing embodiments are specific examples of the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in its practical application.

Claims (8)

1. An optical fiber manufacturing apparatus, comprising:

the optical fiber drawing furnace is used for drawing the charge bar and discharging the optical fiber silk yarns obtained after drawing;

the charge bar conveying mechanism is arranged opposite to the optical fiber drawing furnace along a preset linear direction and is used for conveying the charge bar into the optical fiber drawing furnace along the preset linear direction;

the silk thread traction shaping mechanism is used for shaping the optical fiber silk thread discharged by the optical fiber drawing furnace and discharging the shaped optical fiber silk thread;

the coating and curing mechanism is arranged opposite to the silk thread traction and shaping mechanism, is used for receiving the optical fiber silk thread discharged by the silk thread traction and shaping mechanism, is also used for coating a resin protective layer on the surface of the optical fiber silk thread, curing the resin protective layer and discharging the cured optical fiber silk thread in the direction far away from the silk thread traction and shaping mechanism;

the yarn collecting mechanism is used for collecting the yarns discharged by the coating and curing mechanism;

a tower; the charge bar conveying mechanism, the optical fiber drawing furnace, the silk thread traction shaping mechanism, the coating and curing mechanism and the silk winding mechanism are all arranged on the tower and are sequentially arranged along the preset linear direction.

2. The optical fiber manufacturing apparatus according to claim 1, wherein the predetermined straight direction is a height direction along the tower.

3. The optical fiber manufacturing apparatus according to claim 1 or 2, wherein the tower is provided with a linear rail along the predetermined linear direction, and the coating and curing mechanism and the wire drawing and shaping mechanism are slidably connected to the linear rail.

4. The optical fiber manufacturing apparatus of claim 3, wherein the coating and curing mechanism comprises: the coating and curing assembly is connected with the linear rail in a sliding mode and is sequentially arranged along the preset linear direction.

5. The optical fiber manufacturing apparatus of claim 4, wherein the coating and curing assembly comprises:

an applicator, comprising: an inlet side, an outlet side opposite to the inlet side along the preset linear direction; the inlet side is used for introducing the optical fiber filament into the coating device, and the outlet side is used for discharging the optical fiber filament coated with the resin protection layer;

a curing device; the curing device is provided with a curing channel capable of leading in and discharging the optical fiber silk yarn along the preset linear direction;

a stent, the solidifier and the applicator being disposed on the stent;

and the sliding block is arranged on the bracket and is in sliding connection with the linear track.

6. The optical fiber manufacturing apparatus of claim 5, wherein the support comprises: an upper frame body and a lower frame body;

go up the support body and include: the upper supporting plate is parallel to the upper back plate of the tower and connected with the upper back plate, and the upper supporting plate horizontally extends in the direction departing from the tower;

the lower frame body includes: the lower support plate is parallel to a lower back plate of the tower and connected with the lower back plate, and the lower support plate horizontally extends in the direction departing from the tower;

the lower back plate is also connected with the upper back plate and vertically extends towards the direction far away from the upper supporting plate;

the lower supporting plate is opposite to the upper supporting plate, the coating device is arranged on the upper supporting plate, the curing device is arranged on the lower supporting plate, and the sliding block is arranged on one side, opposite to the tower, of the lower back plate.

7. The optical fiber manufacturing apparatus according to claim 4, wherein the wire drawing and shaping mechanism includes:

the diameter measuring instrument is arranged opposite to the optical fiber drawing furnace along the preset linear direction; the caliper is provided with a measuring channel which can be passed by the fiber optic thread;

the traction shaping assembly is arranged opposite to the coating and curing mechanism along the preset linear direction; the traction shaping assembly is provided with a shaping channel which is used for being passed by an optical fiber silk thread;

the support frame, the calibrator with pull the plastic subassembly and all set up on the support frame:

and the ram is arranged on the support frame and is in sliding connection with the linear track.

8. The optical fiber manufacturing apparatus of claim 7, wherein the support frame comprises: the first supporting plate and the second supporting plate are arranged oppositely and parallelly along the preset linear direction and are respectively connected with the back plate;

the diameter measuring instrument is arranged on the first supporting plate, the traction shaping assembly is arranged on the second supporting plate, and the ram is arranged on one side, opposite to the tower, of the back plate.

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