A rapid low-temperature quartz special sintering furnace for high-performance optical elements

Abstract

This invention belongs to the field of quartz processing technology and discloses a rapid low-temperature quartz sintering furnace for high-performance optical components. It includes a support frame, a camera, and the sintering furnace, and further comprises: a monitoring mechanism including a sealing cover, with a second gas pipe connected to the upper surface of the sealing cover; a first ball valve and a first gas pipe connected to one side of the second gas pipe; a cooling box connected to one side of the first ball valve; a second valve stem rotatably mounted on the outer wall of the first ball valve; a second grooved wheel mounted on the outer wall of the second valve stem; and parallel sensors mounted on the outer wall of the cooling box; a lifting mechanism including a hydraulic rod, with a second oil pipe and a first oil pipe connected to the outer wall of the hydraulic rod; a second ball valve connected to the outer wall of the second oil pipe; a first valve stem rotatably mounted on the outer wall of the second ball valve; and a first grooved wheel mounted on the outer wall of the first valve stem; and an adjusting mechanism including a cam, with a pressing rod mounted on the outer wall of the cam. This invention solves the problem that existing equipment cannot monitor gas concentration, thus failing to effectively narrow down the scope of problem investigation.

Description

Technical Field

[0001] This invention relates to the field of quartz processing technology, specifically to a rapid low-temperature quartz sintering furnace for high-performance optical components. Background Technology

[0002] Optical components play a vital role in modern technology, with widespread applications in communications, medicine, aerospace, defense, and many other fields. The quality of high-performance optical components directly impacts the performance of related equipment and systems. Optical fiber, as a crucial optical component, occupies a central position in the communications field. As a key raw material in optical fiber manufacturing, the quality of the optical fiber preform plays a decisive role in the performance of the final optical fiber product.

[0003] Chinese patent application number 202410526032.9 discloses "An optical fiber preform processing device with fracture detection", which includes a base plate, a sintering furnace and a detection component. A fixed plate is provided above the base plate, and a guide rod is fixedly connected to the fixed plate and fixedly connected to the base plate. A screw is rotatably connected to the fixed plate, and a lifting platform is threadedly connected to the screw. The lifting platform is slidably connected to the guide rod. A connecting shaft is rotatably connected to the lifting platform, and a second gear is fixedly connected to the connecting shaft. A second rack is provided on one side of the second gear and meshes with the second gear. A third transmission rod is fixedly connected to the second rack. A sliding groove is provided on the fixed plate, and a first electric push rod is fixedly connected to the fixed plate.

[0004] This device simplifies the production process by installing detection equipment on the side of the sintering furnace. However, when processing optical fiber preforms, this equipment cannot monitor gas concentration. This results in a lack of relevant gas parameter information as a reference after detecting defects in the optical fiber preforms, making it difficult to effectively narrow down the problem and make timely adjustments, ultimately leading to reduced production efficiency. To solve this problem, this invention proposes a rapid low-temperature quartz sintering furnace specifically for high-performance optical components. Summary of the Invention

[0005] The purpose of this invention is to provide a rapid low-temperature quartz sintering furnace for high-performance optical components. This invention solves the problem that existing equipment cannot monitor gas concentration, thus failing to effectively narrow down the scope of problem investigation.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a rapid low-temperature quartz sintering furnace for high-performance optical components, comprising a support frame, a camera and a sintering furnace located on the support frame, and further comprising:

[0007] The monitoring mechanism includes a sealing cover, the upper surface of which is connected to a second gas pipe. The side of the second gas pipe away from the sealing cover is connected to a first ball valve and the first gas pipe. The side of the first ball valve away from the second gas pipe is connected to a cooling box. A second valve stem is rotatably mounted on the outer wall of the first ball valve, and a second grooved wheel is mounted on the outer wall of the second valve stem. Parallel sensors are mounted on the outer wall of the cooling box. When the first ball valve is opened, some gas passes through the cooling box and is monitored by the parallel sensors.

[0008] The lifting mechanism includes a hydraulic rod, the outer wall of which is connected to a second oil pipe and a first oil pipe respectively. The outer wall of the second oil pipe is connected to a second ball valve. A first valve stem is rotatably mounted on the outer wall of the second ball valve. A first grooved wheel is mounted on the outer wall of the first valve stem. When oil enters the first oil pipe, the hydraulic rod extends, causing the sealing cover to descend. When oil enters the second oil pipe, the hydraulic rod retracts, causing the sealing cover to rise.

[0009] The adjustment mechanism includes a drive assembly and two electric telescopic rods. The electric telescopic rods are symmetrically mounted on the sealing cover. A support ring is installed on the output shaft of the electric telescopic rod. A cam is rotatably mounted on the upper end face of the support ring. A pressing rod is symmetrically mounted on the outer wall of the cam. When the electric telescopic rod extends or retracts, it drives the cam to move through the support ring. The cam drives the pressing rod to press the first grooved wheel or the second grooved wheel, thereby controlling the opening and closing of the second ball valve or the first ball valve.

[0010] Preferably, the upper end face of the hydraulic rod is fixedly mounted on the support frame, a second support plate is mounted on the side of the hydraulic rod away from the support frame, a plurality of first round rods are evenly mounted on the lower end face of the second support plate, the lower end face of the first round rods is mounted on the first support plate, and the upper end face of the cooling box is mounted on the first support plate.

[0011] Preferably, the drive assembly includes a servo motor, the upper end face of which is fixedly mounted on the second support plate, the output shaft of the servo motor is mounted with a second round rod, the outer wall of the second round rod is symmetrically mounted with limit rods, and the cam is sleeved outside the second round rod and the limit rods.

[0012] Preferably, the second round rod, on the side away from the servo motor, passes through the first support plate and is rotatably connected to the sealing cover.

[0013] Preferably, a plurality of limiting blocks are evenly installed on the outer wall of the cam, and a positioning disk is sleeved on the limiting blocks and the outer wall of the cam, with the lower end face of the positioning disk rotatably mounted on the first support plate.

[0014] Preferably, the first air tube is connected to a collection tube on the side away from the second air tube, and the collection tube is connected to the cooling box.

[0015] Preferably, the outer wall of the sintering furnace is connected to an air inlet pipe.

[0016] Preferably, the second valve stem passes through the first support plate and is rotatably connected to the first valve stem.

[0017] Preferably, the first air pipe is fixedly installed below the cooling box by a clip.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] I. This invention is equipped with a monitoring mechanism. In the early stage, the parallel sensors continuously detect the gas concentration. When the concentration stabilizes in the later stage, the second valve stem will drive the first ball valve to open and close, allowing the exhaust gas to pass through the cooling box intermittently and be monitored by the parallel sensors. At this time, more exhaust gas can be directly discharged from the first gas pipe into the collection tank. Without affecting the monitoring, it can reduce the monitoring time of the parallel sensors, extend their service life, reduce the workload of the cooling box, reduce power consumption, and achieve energy saving.

[0020] II. This invention is equipped with a lifting mechanism and a servo motor. After the optical fiber preform is sintered, the second oil pipe operates, the hydraulic rod retracts, and the optical fiber preform rises. At this time, the camera performs detection. Simultaneously, the electric telescopic rod extends, causing the support ring to rise. The support ring causes the cam to rise. The cam drives the first grooved wheel to rotate through the extrusion rod and disengages from the second grooved wheel. The first grooved wheel intermittently drives the first valve stem to rotate. The first valve stem causes the second ball valve to open and close. At this time, the hydraulic rod rises intermittently, thus causing the optical fiber preform to rise intermittently. At the same time, the optical fiber preform is driven to rotate by the servo motor, so the camera can detect more comprehensively.

[0021] Third, the present invention is equipped with an adjustment mechanism. When the cam drives the extrusion rod to move up and down, the extrusion rod will abut and mesh with the first groove wheel and the second groove wheel respectively. At this time, the opening and closing of the second ball valve and the first ball valve are completed, which can ensure stable operation in harsh environments. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 for Figure 1 Another perspective illustration;

[0024] Figure 3 for Figure 1 Another perspective illustration;

[0025] Figure 4 This is a schematic diagram of the cooling box of the present invention;

[0026] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0027] Figure 6This is a schematic diagram of the upper part of the first support plate of the present invention;

[0028] Figure 7 for Figure 6 Enlarged view of point B in the middle;

[0029] Figure 8 for Figure 6 Sectional view;

[0030] Figure 9 This is an exploded schematic diagram of the adjusting mechanism of the present invention.

[0031] In the diagram: 1. Support frame; 2. First support plate; 3. Cooling box; 4. Opening; 5. Air inlet pipe; 6. Hydraulic rod; 7. First oil pipe; 8. Second support plate; 9. First round rod; 10. Fiber optic preform; 11. Camera; 12. Sintering furnace; 13. Electric telescopic rod; 14. Sealing cover; 15. Second oil pipe; 16. Parallel sensor; 17. Collection pipe; 18. First air pipe; 19. Second round rod; 20. First ball valve; 21. Second air pipe; 22. Servo motor; 23. Positioning plate; 24. Second ball valve; 25. First grooved wheel; 26. Second grooved wheel; 27. First valve stem; 28. Second valve stem; 29. ​​Extrusion rod; 30. Cam; 31. Limiting block; 32. Support ring; 33. Limiting rod. Detailed Implementation

[0032] To better understand the purpose, technical solution, and advantages of this application, the application is described and illustrated below in conjunction with the accompanying drawings and embodiments.

[0033] Please see Figures 1 to 9 The present invention provides a technical solution: a rapid low-temperature quartz sintering furnace for high-performance optical components, comprising a support frame 1, a camera 11 and a sintering furnace 12 located on the support frame 1, and further comprising:

[0034] The monitoring mechanism includes a sealing cover 14, the upper surface of which is connected to a second gas pipe 21. The side of the second gas pipe 21 away from the sealing cover 14 is connected to a first ball valve 20 and a first gas pipe 18, respectively. The side of the first ball valve 20 away from the second gas pipe 21 is connected to a cooling box 3. A second valve stem 28 is rotatably mounted on the outer wall of the first ball valve 20, and a second grooved wheel 26 is mounted on the outer wall of the second valve stem 28. Parallel sensors 16 are mounted on the outer wall of the cooling box 3. When the first ball valve 20 is opened, some gas passes through the cooling box 3 and is monitored by the parallel sensors 16 (the parallel sensors 16 include a chlorine sensor, a hydrogen chloride sensor, and an oxygen sensor).

[0035] The lifting mechanism includes a hydraulic rod 6, the outer wall of which is connected to a second oil pipe 15 and a first oil pipe 7. The outer wall of the second oil pipe 15 is connected to a second ball valve 24. A first valve stem 27 is rotatably mounted on the outer wall of the second ball valve 24. A first grooved wheel 25 is mounted on the outer wall of the first valve stem 27. When oil enters the first oil pipe 7, the hydraulic rod 6 extends, causing the sealing cover 14 to descend. When oil enters the second oil pipe 15, the hydraulic rod 6 retracts, causing the sealing cover 14 to rise.

[0036] The adjustment mechanism includes a drive assembly and two electric telescopic rods 13, which are symmetrically mounted on the sealing cover 14. A support ring 32 is mounted on the output shaft of the electric telescopic rod 13. A cam 30 is rotatably mounted on the upper end face of the support ring 32. A pressing rod 29 is symmetrically mounted on the outer wall of the cam 30. When the electric telescopic rod 13 extends or retracts, it drives the cam 30 to move through the support ring 32. The cam 30 drives the pressing rod 29 to press the first grooved wheel 25 or the second grooved wheel 26, thereby controlling the opening and closing of the second ball valve 24 or the first ball valve 20.

[0037] Furthermore, such as Figure 1 As shown, the upper end face of the hydraulic rod 6 is fixedly installed on the support frame 1. A second support plate 8 is installed on the side of the hydraulic rod 6 away from the support frame 1. Several first round rods 9 are evenly installed on the lower end face of the second support plate 8. A first support plate 2 is installed on the lower end face of the first round rods 9. The upper end face of the cooling box 3 is installed on the first support plate 2. An opening 4 is opened on the outer wall of the support frame 1.

[0038] The output shaft of the hydraulic rod 6 extends out and presses against the support frame 1, thereby driving the second support plate 8 and the first support plate 2 to descend at the opening 4.

[0039] Furthermore, such as Figure 5 and Figure 8 As shown, the drive assembly includes a servo motor 22, the upper end face of which is fixedly mounted on the second support plate 8. The output shaft of the servo motor 22 is equipped with a second round rod 19. Limiting rods 33 are symmetrically mounted on the outer wall of the second round rod 19. The cam 30 is sleeved outside the second round rod 19 and the limiting rods 33. The side of the second round rod 19 away from the servo motor 22 passes through the first support plate 2 and is rotatably connected to the sealing cover 14.

[0040] When the servo motor 22 rotates, it drives the second round rod 19 to rotate, and the second round rod 19 drives the optical fiber preform 10 to rotate. At the same time, the second round rod 19 drives the cam 30 to rotate through the limit rod 33.

[0041] Furthermore, such as Figure 9As shown, a plurality of limiting blocks 31 are evenly installed on the outer wall of the cam 30, and a positioning disk 23 is sleeved on the limiting blocks 31 and the outer wall of the cam 30. The lower end face of the positioning disk 23 is rotatably mounted on the first support plate 2.

[0042] When the cam 30 moves, it drives the limit block 31 to move on the positioning disk 23, and drives the positioning disk 23 to rotate through the limit block 31. The positioning disk 23 intermittently positions the first grooved wheel 25 and the second grooved wheel 26 to prevent deviation.

[0043] Furthermore, such as Figure 4 As shown, the first air pipe 18 is connected to a collection pipe 17 on the side away from the second air pipe 21, and the collection pipe 17 is connected to the cooling box 3.

[0044] The exhaust gas will enter the collection pipe 17 through the first air pipe 18 and the cooling box 3, and the exhaust gas will be diverted to reduce the power consumption of the cooling box 3.

[0045] Furthermore, such as Figure 1 As shown, the outer wall of the sintering furnace 12 is connected to an air inlet pipe 5.

[0046] Furthermore, such as Figure 8 As shown, the second valve stem 28 passes through the first support plate 2 and is rotatably connected to the first valve stem 27.

[0047] Furthermore, such as Figure 4 As shown, the first air pipe 18 is fixedly installed below the cooling box 3 by a snap fastener.

[0048] Furthermore, such as Figure 8 As shown, an ultrasonic sensor is installed on the upper surface of the first support plate 2;

[0049] When the electric telescopic rod 13 needs to extend or retract, it only operates when the ultrasonic sensor detects the extrusion rod 29. At this time, the electric telescopic rod 13 operates, and the extrusion rod 29 completes its lifting and lowering on the side away from the first grooved wheel 25 and the second grooved wheel 26 to prevent damage caused by impact.

[0050] Working principle: Step 1: After connecting the external power supply and controller, the second oil pipe 15 and the first oil pipe 7 are connected to the external hydraulic oil tank, the collection pipe 17 is connected to the waste gas collection tank, and the air inlet pipe 5 is connected to the storage tank of the gas required for the sintering of the optical fiber preform 10.

[0051] Step 2: Install the optical fiber preform 10 on the second round rod 19 at the center of the sealing cover 14. At this time, control the first oil pipe 7 to work, and the hydraulic rod 6 begins to extend. The hydraulic rod 6 drives the first support plate 2 to descend at the opening 4 on the support frame 1 through the second support plate 8 and the first round rod 9. When the optical fiber preform 10 descends into the sintering furnace 12, the sealing cover 14 seals the sintering furnace 12. At this time, control the sintering furnace 12 to heat up, and at the same time, the air inlet pipe 5 begins to introduce air.

[0052] Step 3: When the sintering furnace 12 starts working, the servo motor 22 starts to rotate, which drives the optical fiber preform 10 to rotate through the second round rod 19, making its sintering more uniform. At the same time, the second round rod 19 drives the cam 30 to rotate through the limit rod 33. The cam 30 drives the extrusion rod 29 to rotate, and the cam 30 drives the positioning disk 23 to rotate through the limit block 31. At this time, the electric telescopic rod 13 does not work, the cam 30 rotates on the support ring 32, and the extrusion rod 29 does not mesh with the first grooved wheel 25 and the second grooved wheel 26.

[0053] Step 4: The gas in the sintering furnace 12 flows out through the second gas pipe 21 and enters the cooling box 3 and the first gas pipe 18. The gas cooled by the cooling box 3 is monitored by the parallel sensor 16 to prevent the parallel sensor 16 from being damaged by excessive temperature. Then it is discharged from the collection pipe 17 to the collection tank. At this time, the first gas pipe 18 can reduce the workload of the cooling box 3, reduce power consumption, and achieve energy saving.

[0054] Step 5: As sintering progresses, when the optical fiber preform 10 reaches the later stage of sintering, the reaction tends to stabilize. At this time, the parallel sensor 16 detects that the data fluctuation is not significant, and controls the electric telescopic rod 13 to retract. The electric telescopic rod 13 drives the support ring 32 to descend, and the support ring 32 drives the cam 30 to descend. At this time, the cam 30 drives the extrusion rod 29 to descend, and the extrusion rod 29 drives the second grooved wheel 26 to rotate. The second grooved wheel 26 drives the second valve rod 28 to rotate, and the second valve rod 28 causes the first ball valve 20 to open and close, allowing the exhaust gas to pass through the cooling box 3 intermittently and be monitored by the parallel sensor 16. At this time, more exhaust gas can be directly discharged from the first gas pipe 18 into the collection tank. Without affecting the monitoring, this not only extends the service life of the parallel sensor 16, but also reduces the workload of the cooling box 3, achieving energy saving.

[0055] Step 6: After the optical fiber preform 10 is sintered, the second oil pipe 15 operates, the hydraulic rod 6 retracts, and the optical fiber preform 10 rises. At this time, the camera 11 performs detection. Simultaneously, the electric telescopic rod 13 extends, causing the support ring 32 to rise. The support ring 32 causes the cam 30 to rise. The cam 30 drives the first grooved wheel 25 to rotate through the extrusion rod 29 and disengages from the second grooved wheel 26. The first grooved wheel 25 intermittently drives the first valve stem 27 to rotate. The first valve stem 27 causes the second ball valve 24 to open and close. At this time, the hydraulic rod 6 rises intermittently, causing the optical fiber preform 10 to rise intermittently. At the same time, the optical fiber preform 10 is driven to rotate by the servo motor 22, so that the camera 11 can detect more comprehensively. If there is a defect in the optical fiber preform 10 at this time, the gas concentration data monitored by the parallel sensor 16 can be viewed to quickly determine the root cause of the problem.

[0056] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0057] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rapid low-temperature quartz sintering furnace for high-performance optical components, comprising a support frame (1), a camera (11) and a sintering furnace (12) located on the support frame (1), characterized in that, Also includes: The monitoring mechanism includes a sealing cover (14), the upper surface of which is connected to a second air pipe (21). The side of the second air pipe (21) away from the sealing cover (14) is connected to a first ball valve (20) and a first air pipe (18). The side of the first ball valve (20) away from the second air pipe (21) is connected to a cooling box (3). A second valve stem (28) is rotatably installed on the outer wall of the first ball valve (20). A second grooved wheel (26) is installed on the outer wall of the second valve stem (28). A parallel sensor (16) is installed on the outer wall of the cooling box (3). When the first ball valve (20) is opened, some gas passes through the cooling box (3) and is monitored by the parallel sensor (16). The lifting mechanism includes a hydraulic rod (6), the outer wall of which is connected to a second oil pipe (15) and a first oil pipe (7), the outer wall of which is connected to a second ball valve (24), the outer wall of which is rotatably mounted with a first valve stem (27), and the outer wall of which is mounted with a first grooved wheel (25); when oil enters the first oil pipe (7), the hydraulic rod (6) extends, driving the sealing cover (14) to descend; when oil enters the second oil pipe (15), the hydraulic rod (6) retracts, driving the sealing cover (14) to rise; The adjustment mechanism includes a drive assembly and two electric telescopic rods (13). The electric telescopic rods (13) are symmetrically mounted on the sealing cover (14). The output shaft of the electric telescopic rods (13) is equipped with a support ring (32). A cam (30) is rotatably mounted on the upper end face of the support ring (32). A pressing rod (29) is symmetrically mounted on the outer wall of the cam (30). When the electric telescopic rods (13) extend or retract, the cam (30) is moved by the support ring (32). The cam (30) drives the pressing rod (29) to press the first grooved wheel (25) or the second grooved wheel (26), thereby controlling the opening and closing of the second ball valve (24) or the first ball valve (20).

2. The rapid low-temperature sintering furnace for high-performance optical components according to claim 1, characterized in that: The upper end face of the hydraulic rod (6) is fixedly installed on the support frame (1). A second support plate (8) is installed on the side of the hydraulic rod (6) away from the support frame (1). Several first round rods (9) are evenly installed on the lower end face of the second support plate (8). A first support plate (2) is installed on the lower end face of the first round rods (9). The upper end face of the cooling box (3) is installed on the first support plate (2).

3. A rapid low-temperature sintering furnace for high-performance optical components according to claim 2, characterized in that: The drive assembly includes a servo motor (22), the upper end face of which is fixedly mounted on the second support plate (8). The output shaft of the servo motor (22) is equipped with a second round rod (19), and limit rods (33) are symmetrically mounted on the outer wall of the second round rod (19). The cam (30) is sleeved on the outside of the second round rod (19) and the limit rods (33).

4. A rapid low-temperature sintering furnace for high-performance optical components according to claim 3, characterized in that: The second round rod (19) passes through the first support plate (2) and is rotatably connected to the sealing cover (14) on the side away from the servo motor (22).

5. A rapid low-temperature sintering furnace for high-performance optical components according to claim 2, characterized in that: A number of limiting blocks (31) are evenly installed on the outer wall of the cam (30). The limiting blocks (31) and the outer wall of the cam (30) are fitted with a positioning disk (23). The lower end face of the positioning disk (23) is rotatably mounted on the first support plate (2).

6. A rapid low-temperature sintering furnace for high-performance optical components according to claim 1, characterized in that: The first air tube (18) is connected to a collection tube (17) on the side away from the second air tube (21), and the collection tube (17) is connected to the cooling box (3).

7. A rapid low-temperature sintering furnace for high-performance optical components according to claim 1, characterized in that: The outer wall of the sintering furnace (12) is connected to an air inlet pipe (5).

8. A rapid low-temperature sintering furnace for high-performance optical components according to claim 1, characterized in that: The second valve stem (28) passes through the first support plate (2) and is rotatably connected to the first valve stem (27).

9. A rapid low-temperature sintering furnace for high-performance optical components according to claim 1, characterized in that: The first air pipe (18) is fixedly installed below the cooling box (3) by a snap fastener.

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