Sintering system for loose body of optical fiber preform and working method of sintering system

Abstract

The invention is suitable for the technical field of optical fiber preform loose body sintering, and provides an optical fiber preform loose body sintering system and a working method thereof.The optical fiber preform loose body sintering system comprises a furnace body assembly, the furnace body assembly is used for sintering a preform, and a measuring assembly is arranged at the top of the furnace body assembly and used for detecting a rod body before sintering; a gas inlet assembly is arranged on one side of the furnace body assembly and used for introducing specific gas into the furnace body assembly, a gas exhaust assembly is arranged on the other side of the furnace body assembly and used for exhausting waste gas, and a cleaning assembly is arranged in the furnace body assembly. The collecting furnace is used for collecting scattered loose bodies, the scattered loose bodies are prevented from damaging the hearth, and the purpose of protecting the hearth is achieved; the cleaning mechanism is arranged in the collecting furnace, the loose bodies scattered in the collecting furnace are gathered to one place through the cleaning mechanism, the cleaning efficiency is improved, and subsequent cleaning of the collecting furnace is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of sintering of optical fiber preform loose bodies, and more specifically, to a sintering system and a working method of an optical fiber preform loose body. Background Art

[0002] The sintering of the optical fiber preform loose body is a key step in the optical fiber manufacturing process. It involves transforming the deposited loose body into a transparent, solid glass rod through high-temperature treatment. During the sintering process, it is necessary to remove moisture and volatile impurities in the material while ensuring precise control of the refractive index distribution to meet the performance requirements of the optical fiber.

[0003] At present, the size of the sintering furnace is adapted to the corresponding size of the loose body. If the size of the loose body exceeds the size of the furnace body, the loose body will scratch the inner wall of the furnace when entering the furnace, affecting the use of the furnace. In addition, due to quality problems in the early deposition process, such as uneven density and loose structure, the loose body will fall off during high-temperature sintering, and the fallen loose body will accumulate inside the furnace. The accumulation at the bottom of the furnace will affect the normal use of the pipes inside the furnace. If it is scattered on the inner wall of the furnace, it will have a certain impact on the heat conduction inside the furnace. In response to the falling of the loose body, the staff will inspect the loose body before it enters the furnace, remove the loose body that does not meet the sintering conditions, and ensure the normal progress of the subsequent sintering work.

[0004] However, although a portion of unqualified loose bodies can be screened out by setting up a measuring device, during the high-temperature sintering process, the loose bodies are affected by excessive mechanical vibration or other thermal stress factors, and the loose bodies will still fall off the supporting structure and fall into the furnace. In this case, the loose bodies will still accumulate in the furnace, affecting the sintering work and the service life of the furnace. A sintering system for optical fiber preform loose bodies and a working method thereof are now proposed to improve the existing problems. Summary of the invention

[0005] In view of the shortcomings of the prior art, the object of the present invention is to provide a sintering system for an optical fiber preform loose body and a working method thereof.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sintering system for a loose body of an optical fiber preform rod, comprising a furnace body assembly, wherein the furnace body assembly is used to sinter the preform rod, a measuring assembly is arranged on the top of the furnace body assembly, and the measuring assembly is used to detect the rod body before sintering, an air intake assembly is arranged on one side of the furnace body assembly, and the air intake assembly is used to introduce a specific gas into the interior of the furnace body assembly, an exhaust assembly is arranged on the other side of the furnace body assembly, and the exhaust assembly is used to exhaust waste gas, and a cleaning assembly is arranged inside the furnace body assembly, and the cleaning assembly is used to clean and collect debris dropped during the sintering process inside the furnace body assembly.

[0007] The furnace body assembly includes an insulation layer, which is in the shape of a cylinder and is used to maintain the sintering temperature. A furnace cover is provided on the top of the insulation layer, and a furnace chamber is provided inside the insulation layer, which is in the shape of a cylinder. A heating component is provided on the outer wall of the insulation layer, and the heating component is used to provide the required temperature for sintering. The heating component is placed in the middle of the insulation layer and the furnace chamber.

[0008] The measuring component includes a measuring mechanism and a data analysis module. The measuring mechanism is placed on the top of the furnace cover. A loose body is arranged in the middle of the measuring mechanism. The measuring mechanism includes a data measurement component. The data measurement component includes a displacement sensor, a pressure sensor, and a diameter measuring instrument. The data measurement component is mainly used to measure the length, diameter and density of the loose body, and the corresponding data is analyzed by the data analysis module to determine whether the loose body meets the sintering conditions.

[0009] The cleaning component includes a collecting furnace, which is arranged inside the furnace and is used to collect loose bodies that fall during the sintering process. A placing rack is provided inside the collecting furnace, and a plurality of cleaning mechanisms are provided outside the placing rack. The shape formed by the hinged combination of the plurality of cleaning mechanisms is a ring, and the cleaning mechanisms are used to clean the loose bodies that fall during the sintering process inside the collecting furnace.

[0010] By adopting the above technical scheme, the insulation layer is used to maintain the sintering temperature, a furnace cover is arranged on the top of the insulation layer, and a furnace is arranged inside the insulation layer. The furnace provides a placement space for sintering, which is convenient for the normal sintering work. A heating component is arranged on the outer wall of the insulation layer. The heating component is used to provide the required temperature for sintering. The air intake component is used to introduce specific gas into the furnace to create the required sintering atmosphere. After the sintering starts, the heating component provides the required temperature for the sintering of the loose body. After the sintering is completed, the exhaust component discharges the exhaust gas in the furnace to keep the gas pressure in the furnace stable.

[0011] The present invention is further configured as follows: two groups of first cylinders are arranged on the top of the furnace cover, and a group of first screw rods are respectively arranged at the output ends of the two groups of first cylinders, and the ends of the two groups of first screw rods away from the first cylinders are connected to the placement rack, and the placement rack is in an I-shape. The two groups of first cylinders are used to drive the placement rack to move up and down in a straight line.

[0012] The present invention is further configured as follows: a second cylinder is also provided on the top of the furnace cover, a second screw rod is connected to the output end of the second cylinder, the second screw rod passes through one end of the placement rack and is connected to the output rod, a plurality of groups of cleaning mechanisms are provided below the output rod, and the output rod is connected to one group of the cleaning mechanisms, and the second cylinder is used to control the use status of the cleaning mechanism.

[0013] The present invention is further configured as follows: the cleaning mechanism comprises a scraper, a connecting block is arranged on one side of the scraper, a hinged rod is arranged on one side of the connecting block, and the hinged rod is hinged to the connecting block.

[0014] The present invention is further configured as follows: a connecting rod is provided through the connecting block, the outer side of the connecting rod is fixedly connected to the connecting block, one end of the connecting rod is fixedly connected to the scraper, and the other end of the connecting rod is fixedly connected to the side wall of the placement rack.

[0015] The present invention is further configured as follows: a fixing block is provided in the middle position between the scraper and the connecting block, the connecting rod is provided through the center of the fixing block, the connecting rod is rotatably connected to the fixing block, and the bottom of the fixing block is fixedly connected to the placement frame.

[0016] By adopting the above technical solution, by starting the second cylinder, the second cylinder drives the output rod vertically downward, and the output rod drives the connecting block to move. Driven by the connecting block, the scraper is in a vertical state. At this time, the two groups of first cylinders drive the placement rack to move vertically upward until it reaches the cleaning position. The second cylinder is started again, and the second cylinder drives the scraper to be in a horizontal state. The first cylinder is started again to drive the placement rack to move vertically downward. The loose bodies scattered inside the collecting furnace are scraped off by the scraper during the movement of the placement rack. The scraper gathers the scattered loose bodies to the bottom of the collecting furnace. After sintering is completed, the waste slag at the bottom of the collecting furnace can be cleaned.

[0017] The present invention is further configured as follows: a group of columns are respectively provided on both sides of the measuring mechanism, a clamp is provided in the middle position of the two groups of columns, the clamp is used to clamp the loose body, and a conveying device is connected to the outside of the clamp, and the conveying device is used to convey the loose body to the sintering position.

[0018] The present invention is further configured as follows: the pressure sensor provided at the measuring mechanism is used to measure the mass of the loose body, and the density of the loose body is obtained based on the measured mass.

[0019] The present invention is further configured as follows: the data tested by the data measurement component arranged at the measuring mechanism is transmitted to a data analysis module, and the data analysis module includes a receiving module, a processing module and an output module, wherein the receiving module is used to receive the measured data, the processing module is used to perform corresponding calculation processing on the received data, and the output module is used to analyze the processed data, and judge whether the loose body meets the sintering conditions through the data. If the sintering conditions are met, the loose body is transported to the sintering position by the conveying device; if the sintering conditions are not met, the loose body is recovered.

[0020] By adopting the above technical scheme, the data measurement component of the measuring mechanism measures the length, diameter and mass of the loose body, and judges whether the length, diameter and density obtained from the mass meet the sintering conditions at the same time. If the sintering conditions are met at the same time, the loose body is transported to the furnace for sintering through the conveying device. If one of the length, diameter and density does not meet the sintering conditions, the loose body is recycled and processed. By setting up the data measurement device, some unqualified loose bodies can be screened out.

[0021] A method for sintering a loose body of an optical fiber preform, using the above-mentioned sintering system of the loose body of an optical fiber preform, comprises the following steps:

[0022] S1. First, place the loose body in the middle position of the measuring mechanism, and the data measuring component at the position of the measuring mechanism performs corresponding measurements, and performs corresponding analysis and processing on the measured data to determine whether the loose body meets the sintering conditions. If the sintering conditions are met, sintering is performed; if the sintering conditions are not met, the loose body is recycled.

[0023] S2. After the inspection is completed, the loose body that meets the sintering conditions is transported to the furnace by the conveying device. The exhaust component is used to introduce specific gas into the furnace to create the required sintering atmosphere. After the sintering starts, the heating component provides the required temperature for the sintering of the loose body.

[0024] S3. During the sintering process of the loose body, if the loose body falls, the loose body will be collected by the collecting furnace. In addition, the loose body scattered on the inner wall of the collecting furnace will be cleaned by the cleaning mechanism. The cleaning mechanism gathers the cleaned loose body to the bottom of the collecting furnace. After the sintering is completed, the exhaust component discharges the exhaust gas in the furnace to keep the gas pressure in the furnace stable. Finally, the collecting furnace is taken out and the waste slag at the bottom of the collecting furnace is cleaned.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] (1) By setting up the furnace body assembly, the corresponding environment setting is provided for the sintering of the loose body. The insulation layer is used to maintain the sintering temperature. The furnace provides a placement space for the sintering to facilitate the normal sintering work. The heating assembly is used to provide the required temperature for sintering. The air intake assembly is used to introduce specific gas into the furnace to create the required sintering atmosphere. The exhaust assembly discharges the exhaust gas in the furnace to maintain the gas pressure in the furnace stable. The overall device ensures the normal progress of the sintering work and achieves the purpose of stable sintering.

[0027] (2) By setting up a cleaning component, the scattered loose bodies are collected by the collecting furnace to avoid damage to the furnace by the scattered loose bodies, thereby achieving the purpose of protecting the furnace; a cleaning mechanism is set up in the collecting furnace, and the scattered loose bodies in the collecting furnace are gathered into one place through the cleaning mechanism, thereby improving the cleaning efficiency, facilitating the subsequent cleaning of the collecting furnace, and also facilitating the secondary use of the collecting furnace, thereby improving the utilization efficiency.

[0028] (3) By setting up a measuring component, the diameter, length and mass of the loose body are measured, and by judging whether the three data meet the sintering conditions, the loose body is screened and some of the loose bodies that do not meet the conditions are screened out, thereby achieving the purpose of pre-detection of the loose body, ensuring the normal sintering work, and at the same time increasing the service life of the furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 The present invention is a schematic structural diagram of a sintering system for an optical fiber preform loose body and a working method thereof.

[0030] Figure 2 For the present invention Figure 1 Isometric view of.

[0031] Figure 3 For the present invention Figure 1 Schematic diagram of the explosion.

[0032] Figure 4 It is a schematic diagram of the structure of the cleaning component in the present invention.

[0033] Figure 5 For the present invention Figure 4 Front view of .

[0034] Figure 6 It is a schematic diagram of the structure of the cleaning mechanism in the present invention.

[0035] Figure 7 For the present invention Figure 5 Schematic diagram of the enlarged structure of area A in the middle.

[0036] Figure 8 It is a schematic diagram of the structure of the measuring component in the present invention.

[0037] Fig. 9 It is the working flow chart of the measuring mechanism in the present invention.

[0038] Fig.10 This is a flow chart for determining the sintering conditions in the present invention.

[0039] Description of reference numerals: 1. furnace body assembly; 11. insulation layer; 12. furnace cover; 13. furnace chamber; 2. measuring assembly; 21. column; 22. fixture; 23. measuring mechanism; 24. loose body;

[0040] 3. Cleaning assembly; 31. First cylinder; 32. Second cylinder; 33. Collecting furnace; 34. Placement rack; 35. Cleaning mechanism; 351. Scraper; 352. Connecting rod; 353. Connecting block; 354. Articulated rod; 355. Fixing block; 36. First screw rod; 37. Second screw rod; 38. Output rod;

[0041] 4. Air intake assembly;

[0042] 5. Exhaust assembly;

[0043] 6. Heating component. DETAILED DESCRIPTION

[0044] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0045] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0046] See also Figure 1-10 , the present invention provides the following technical solutions:

[0047] Embodiment 1, a sintering system for a loose body of an optical fiber preform, includes a furnace assembly 1, the furnace assembly 1 is used for sintering the preform, and the specific structure of the furnace assembly 1 is as follows:

[0048] See also Figure 1-3 The furnace body assembly 1 includes a thermal insulation layer 11, which is in the shape of a cylinder and is used to maintain the sintering temperature. A furnace cover 12 is arranged on the top of the thermal insulation layer 11, and a furnace chamber 13 is arranged inside the thermal insulation layer 11. The furnace chamber 13 is in the shape of a cylinder and provides a placement space for sintering, which facilitates the normal sintering work. A heating component 6 is arranged on the outer wall of the thermal insulation layer 11. The heating component 6 is used to provide the required temperature for sintering, and the heating component 6 is placed in the middle position of the thermal insulation layer 11 and the furnace chamber 13.

[0049] See also Figure 1 A measuring assembly 2 is provided on the top of the furnace assembly 1. The measuring assembly 2 is used to detect the rod body before sintering. The specific structure of the measuring assembly 2 is as follows:

[0050] See also Figure 2 and Figure 8 The measuring assembly 2 includes a measuring mechanism 23, which is placed on the top of the furnace cover 12. A loose body 24 is arranged in the middle of the measuring mechanism 23. A group of columns 21 are arranged on both sides of the measuring mechanism 23. A clamp 22 is arranged in the middle of the two groups of columns 21. The clamp 22 is used to clamp the loose body 24. The outside of the clamp 22 is connected to a conveying device, which is used to convey the loose body 24 to the sintering position.

[0051] The measuring assembly 2 includes a measuring mechanism 23 and a data analysis module. The measuring mechanism 23 is placed on the top of the furnace cover 12. A loose body 24 is arranged in the middle of the measuring mechanism 23. The measuring mechanism 23 includes a data measurement assembly. The data measurement assembly includes a displacement sensor, a pressure sensor, and a diameter measuring instrument. The data measurement assembly is mainly used to measure the length, diameter, and density of the loose body 24, and analyze the corresponding data through the data analysis module to determine whether the loose body 24 meets the sintering conditions.

[0052] The displacement sensor is used to measure the length of the loose body 24 , and the diameter measuring instrument is used to measure the diameter of the loose body 24 .

[0053] The pressure sensor provided at the measuring mechanism 23 is used to measure the mass of the loose body 24, and the density of the loose body 24 is obtained according to the measured mass. The calculation formula for calculating the density ρ of the loose body 24 is as follows:

[0054] ρ=m / V

[0055] Here, g is the gravitational acceleration constant, m is the mass of the loose body 24 , and V is the volume of the loose body 24 .

[0056] If any one of the length, diameter and density of the loose body 24 is unqualified, the loose body 24 is unqualified, the loose body 24 does not meet the sintering conditions, and the loose body 24 is recycled. The data measurement prevents the unqualified loose body 24 from entering the furnace 13, and further prevents it from falling into the furnace 13 during high-temperature sintering, affecting the service life of the furnace 13. At the same time, the various data measured in this process provide a reference for the subsequent deposition of the loose body 24, which is convenient for improving the deposition efficiency of the loose body 24 and improving the sintering efficiency of the loose body 24.

[0057] The data tested by the data measurement component arranged at the measuring mechanism 23 is transmitted to the data analysis module, which includes a receiving module, a processing module and an output module, wherein the receiving module is used to receive the measured data, the processing module is used to perform corresponding calculation processing on the received data, and the output module is used to analyze the processed data, and judge whether the loose body 24 meets the sintering conditions through the data. If the sintering conditions are met, the loose body 24 is transported to the sintering position by the transporting device, and if the sintering conditions are not met, the loose body 24 is recovered.

[0058] Specifically, the data measurement component at the measuring mechanism 23 measures the length, diameter and mass of the loose body 24, and determines whether the length, diameter and density obtained from the mass meet the sintering conditions at the same time. If the sintering conditions are met at the same time, the loose body 24 is transported to the furnace 13 for sintering through the conveying device. If one of the length, diameter and density does not meet the sintering conditions, the loose body 24 is recycled.

[0059] See also Figure 2 and Figure 3 An air intake assembly 4 is provided on one side of the furnace body assembly 1, and the air intake assembly 4 is used to introduce a specific gas into the furnace body assembly 1. An exhaust assembly 5 is provided on the other side of the furnace body assembly 1, and the exhaust assembly 5 is used to exhaust waste gas.

[0060] After the detection is completed, the loose body 24 that meets the sintering conditions is transported to the interior of the furnace 13 by the conveying device. The air intake component 4 is used to introduce specific gas into the furnace 13 to create the required sintering atmosphere. After the sintering starts, the heating component 6 provides the required temperature for the sintering of the loose body 24. After the sintering is completed, the exhaust component 5 discharges the exhaust gas in the furnace 13 to keep the gas pressure in the furnace 13 stable.

[0061] In the second embodiment, a portion of unqualified loose bodies can be screened out by setting up a measuring device. However, during the high-temperature sintering process, the loose bodies are affected by excessive mechanical vibration or other thermal stress factors, and the loose bodies will still fall off the supporting structure and fall into the furnace. In this case, the loose bodies will still accumulate in the furnace, affecting the sintering work and the service life of the furnace.

[0062] To this end, a cleaning assembly 3 is provided inside the furnace body assembly 1, and the cleaning assembly 3 is used to clean and collect the debris dropped during the sintering process inside the furnace body assembly 1. The specific structure of the cleaning assembly 3 is as follows:

[0063] See also Figure 3 and Figure 4The cleaning component 3 includes a collecting furnace 33, which is arranged inside the furnace 13. The collecting furnace 33 is used to collect the loose bodies 24 that fall during the sintering process. A placing rack 34 is arranged inside the collecting furnace 33, and a plurality of cleaning mechanisms 35 are arranged on the outside of the placing rack 34. The plurality of cleaning mechanisms 35 are hingedly combined to form a ring-shaped shape. The cleaning mechanisms 35 are used to clean the loose bodies 24 that fall during the sintering process inside the collecting furnace 33.

[0064] See also Figure 4 and Figure 5 Two groups of first cylinders 31 are arranged on the top of the furnace cover 12, and a group of first screw rods 36 are respectively arranged at the output ends of the two groups of first cylinders 31. The ends of the two groups of first screw rods 36 away from the first cylinders 31 are connected to the placement rack 34. The placement rack 34 is in an I-shape. The two groups of first cylinders 31 are used to drive the placement rack 34 to move up and down along a straight line.

[0065] See also Figure 4 and Figure 5 A second cylinder 32 is also provided on the top of the furnace cover 12, and a second screw rod 37 is connected to the output end of the second cylinder 32. The second screw rod 37 passes through one end of the placement rack 34 and is connected to an output rod 38. Several groups of cleaning mechanisms 35 are provided below the output rod 38, and the output rod 38 is connected to one group of cleaning mechanisms 35. The second cylinder 32 is used to control the use status of the cleaning mechanism 35.

[0066] See also Figure 4 and Figure 5 The cleaning mechanism 35 is used to clean the loose bodies 24 scattered inside the collecting furnace 33. In particular, the cleaning mechanism 35 can scrape off the waste residue on the inner wall of the collecting furnace 33. The specific structure of the cleaning mechanism 35 is as follows:

[0067] See also Figure 5 and Figure 6 The cleaning mechanism 35 includes a scraper 351, a connecting block 353 is provided on one side of the scraper 351, a hinged rod 354 is provided on one side of the connecting block 353, the hinged rod 354 is hinged to the connecting block 353, a connecting rod 352 is provided through the connecting block 353, the outer side of the connecting rod 352 is fixedly connected to the connecting block 353, one end of the connecting rod 352 is fixedly connected to the scraper 351, and the other end of the connecting rod 352 is fixedly connected to the side wall of the placement rack 34, a fixing block 355 is provided in the middle position of the scraper 351 and the connecting block 353, a connecting rod 352 is provided through the center of the fixing block 355, the connecting rod 352 is rotatably connected to the fixing block 355, and the bottom of the fixing block 355 is fixedly connected to the placement rack 34.

[0068] The specific cleaning process of the cleaning component 3 is as follows: by starting the second cylinder 32, the second cylinder 32 drives the output rod 38 vertically downward, and the output rod 38 drives the connecting block 353 to move. Driven by the connecting block 353, the scraper 351 is in a vertical state. At this time, the two groups of first cylinders 31 drive the placement rack 34 to move vertically upward until it reaches the cleaning position, and the second cylinder 32 is started again. The second cylinder 32 drives the scraper 351 to be in a horizontal state, and the first cylinder 31 is started again to drive the placement rack 34 to move vertically downward. The loose bodies 24 scattered inside the collecting furnace 33 are scraped off by the scraper 351 during the movement of the placement rack 34. The scraper 351 gathers the scattered loose bodies 24 to the bottom of the collecting furnace 33. After sintering is completed, the waste slag at the bottom of the collecting furnace 33 can be cleaned.

[0069] By setting up the cleaning component 3 and the specific structure in the cleaning component 3, the cleaning component 3 can be used to clean and collect the waste slag generated during the sintering process inside the furnace 13, providing a protective cover for the furnace 13, preventing scattered loose bodies 24 from damaging the furnace 13, and improving the service life of the furnace 13.

[0070] Embodiment 3, a method for sintering a loose body of an optical fiber preform, using the above-mentioned sintering system of a loose body of an optical fiber preform, comprises the following steps:

[0071] S1. The staff places the loose body 24 in the middle position of the measuring mechanism 23. The data measuring component at the position of the measuring mechanism 23 performs corresponding measurements and performs corresponding analysis and processing on the measured data to determine whether the loose body 24 meets the sintering conditions. If the sintering conditions are met, sintering is performed. If the sintering conditions are not met, the loose body 24 is recycled.

[0072] S11. The data measuring component at the position of the measuring mechanism 23 performs corresponding data measurement on the loose body 24. The displacement sensor is used to measure the length of the loose body 24. The diameter measuring instrument is used to measure the diameter of the loose body 24. The pressure sensor arranged at the measuring mechanism 23 is used to measure the mass of the loose body 24, and the density of the loose body 24 is obtained based on the measured mass.

[0073] S12, the data tested by the data measurement component set at the measuring mechanism 23 is transmitted to the data analysis module, and the data analysis module includes a receiving module, a processing module and an output module, wherein the receiving module is used to receive the measured data, the processing module is used to perform corresponding calculations on the received data, and the output module is used to analyze the processed data, and judge whether the loose body 24 meets the sintering conditions through the data. If the sintering conditions are met, the loose body 24 is transported to the sintering position by the transport device, and if the sintering conditions are not met, the loose body 24 is recovered.

[0074] S2. After the detection is completed, the loose body 24 that meets the sintering conditions is transported to the inside of the furnace 13 by the conveying device. The exhaust component 5 is used to introduce specific gas into the furnace 13 to create the required sintering atmosphere. After the sintering starts, the heating component 6 provides the required temperature for the sintering of the loose body 24.

[0075] S3. During the sintering process of the loose body 24, if the loose body 24 falls, the loose body 24 will be collected by the collecting furnace 33. In addition, the loose body 24 scattered on the inner wall of the collecting furnace 33 will be cleaned by the cleaning mechanism 35. The cleaning mechanism 35 gathers the cleaned loose body 24 to the bottom of the collecting furnace 33. After the sintering is completed, the exhaust component 5 discharges the exhaust gas in the furnace 13 to keep the gas pressure in the furnace 13 stable. Finally, the collecting furnace 33 is taken out and the waste slag at the bottom of the collecting furnace 33 is cleaned.

[0076] S31. By starting the second cylinder 32, the second cylinder 32 drives the output rod 38 vertically downward, and the output rod 38 drives the connecting block 353 to move. Driven by the connecting block 353, the scraper 351 is in a vertical state. At this time, the two groups of first cylinders 31 drive the placement rack 34 to move vertically upward until it reaches the cleaning position. The second cylinder 32 is started again, and the second cylinder 32 drives the scraper 351 to be in a horizontal state. The first cylinder 31 is started again to drive the placement rack 34 to move vertically downward. The loose bodies 24 scattered inside the collection furnace 33 are scraped off by the scraper 351 during the movement of the placement rack 34. The scraper 351 gathers the scattered loose bodies 24 to the bottom of the collection furnace 33.

[0077] S32. After sintering is completed, the exhaust gas inside the furnace 13 is discharged through the exhaust assembly 5 to keep the gas pressure inside the furnace 13 stable. Finally, the collecting furnace 33 is taken out by a tool, and the waste slag at the bottom of the collecting furnace 33 is cleaned to keep the inside of the collecting furnace 33 clean.

[0078] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

Claims

1. A sintering system for a loose body of an optical fiber preform, characterized in that: The invention comprises a furnace body component (1), wherein the furnace body component (1) is used for sintering preformed rods; a measuring component (2) is arranged on the top of the furnace body component (1); the measuring component (2) is used for detecting the rod body before sintering; an air intake component (4) is arranged on one side of the furnace body component (1); the air intake component (4) is used for introducing a specific gas into the interior of the furnace body component (1); an exhaust component (5) is arranged on the other side of the furnace body component (1); the exhaust component (5) is used for exhausting waste gas; a cleaning component (3) is arranged inside the furnace body component (1); the cleaning component (3) is used for cleaning and collecting debris dropped from the interior of the furnace body component (1) during the sintering process; The furnace body component (1) comprises a heat-insulating layer (11), the heat-insulating layer (11) is in the shape of a cylinder, the heat-insulating layer (11) is used to maintain the sintering temperature, a furnace cover (12) is arranged on the top of the heat-insulating layer (11), a furnace chamber (13) is arranged inside the heat-insulating layer (11), the furnace chamber (13) is in the shape of a cylinder, a heating component (6) is arranged on the outer wall of the heat-insulating layer (11), the heating component (6) is used to provide the required temperature for sintering, and the heating component (6) is placed in the middle position between the heat-insulating layer (11) and the furnace chamber (13); The measuring assembly (2) comprises a measuring mechanism (23) and a data analysis module. The measuring mechanism (23) is placed on the top of the furnace cover (12). A loose body (24) is arranged in the middle of the measuring mechanism (23). The measuring mechanism (23) comprises a data measurement assembly. The data measurement assembly comprises a displacement sensor, a pressure sensor, and a diameter measuring instrument. The data measurement assembly is mainly used to measure the length, diameter and density of the loose body (24). The corresponding data is analyzed by the data analysis module to determine whether the loose body (24) meets the sintering conditions. The cleaning assembly (3) comprises a collecting furnace (33), wherein the collecting furnace (33) is arranged inside the furnace chamber (13), and the collecting furnace (33) is used to collect loose bodies (24) dropped during the sintering process. A placement rack (34) is arranged inside the collecting furnace (33), and a plurality of cleaning mechanisms (35) are arranged outside the placement rack (34). The plurality of cleaning mechanisms (35) are hingedly combined to form a ring-shaped shape, and the cleaning mechanisms (35) are used to clean the loose bodies (24) dropped during the sintering process inside the collecting furnace (33).

2. The sintering system of the optical fiber preform loose body according to claim 1, characterized in that: Two groups of first cylinders (31) are arranged on the top of the furnace cover (12), and a group of first screw rods (36) are respectively arranged at the output ends of the two groups of first cylinders (31). One end of the two groups of first screw rods (36) away from the first cylinders (31) is connected to the placement rack (34), and the placement rack (34) is in an I-shape. The two groups of first cylinders (31) are used to drive the placement rack (34) to move up and down along a straight line.

3. The sintering system of the optical fiber preform loose body according to claim 2, characterized in that: A second cylinder (32) is also provided on the top of the furnace cover (12), and a second screw rod (37) is connected to the output end of the second cylinder (32). The second screw rod (37) passes through one end of the placement rack (34) and is connected to an output rod (38). Several groups of cleaning mechanisms (35) are provided below the output rod (38), and the output rod (38) is connected to one group of the cleaning mechanisms (35). The second cylinder (32) is used to control the use status of the cleaning mechanism (35).

4. The sintering system of the optical fiber preform loose body according to claim 3, characterized in that: The cleaning mechanism (35) comprises a scraper (351), a connecting block (353) is provided on one side of the scraper (351), a hinged rod (354) is provided on one side of the connecting block (353), and the hinged rod (354) is hinged to the connecting block (353).

5. The sintering system of the optical fiber preform loose body according to claim 4, characterized in that: A connecting rod (352) is provided through the connecting block (353), the outer side of the connecting rod (352) is fixedly connected to the connecting block (353), one end of the connecting rod (352) is fixedly connected to the scraper (351), and the other end of the connecting rod (352) is fixedly connected to the side wall of the placement rack (34).

6. The sintering system of the optical fiber preform loose body according to claim 5, characterized in that: A fixing block (355) is arranged in the middle of the scraper (351) and the connecting block (353), the connecting rod (352) is arranged through the center of the fixing block (355), the connecting rod (352) is rotatably connected to the fixing block (355), and the bottom of the fixing block (355) is fixedly connected to the placement frame (34).

7. The sintering system of the optical fiber preform loose body according to claim 1, characterized in that: A group of columns (21) are respectively arranged on both sides of the measuring mechanism (23); a clamp (22) is arranged in the middle position of the two groups of columns (21); the clamp (22) is used to clamp the loose body (24); the outside of the clamp (22) is connected to a conveying device, and the conveying device is used to convey the loose body (24) to a sintering position.

8. The sintering system of the optical fiber preform loose body according to claim 7, characterized in that: The pressure sensor provided at the measuring mechanism (23) is used to measure the mass of the loose body (24), and the density of the loose body (24) is obtained based on the measured mass.

9. The sintering system of the optical fiber preform loose body according to claim 8, characterized in that: The data measured by the data measurement component arranged at the measuring mechanism (23) is transmitted to a data analysis module, and the data analysis module comprises a receiving module, a processing module and an output module, wherein the receiving module is used to receive the measured data, the processing module is used to perform corresponding calculation processing on the received data, and the output module is used to analyze the processed data, and judge whether the loose body (24) meets the sintering conditions through the data. If the sintering conditions are met, the loose body (24) is transported to the sintering position by the transport device; if the sintering conditions are not met, the loose body (24) is recovered.

10. A method for sintering a loose body of an optical fiber preform, using the sintering system of the loose body of an optical fiber preform as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1, firstly, the loose body (24) is placed in the middle position of the measuring mechanism (23), and the data measuring component at the position of the measuring mechanism (23) performs corresponding measurements, and performs corresponding analysis and processing on the measured data to determine whether the loose body (24) meets the sintering conditions. If the sintering conditions are met, sintering is performed; if the sintering conditions are not met, the loose body (24) is recycled; S2. After the detection is completed, the loose body (24) that meets the sintering conditions is transported to the interior of the furnace (13) by the transport device, and the exhaust component (5) is used to introduce specific gas into the furnace (13) to create the required sintering atmosphere. After the sintering starts, the heating component (6) provides the required temperature for the sintering of the loose body (24); S3. During the sintering process of the loose body (24), if the loose body (24) falls, the loose body (24) will be collected by the collecting furnace (33). In addition, the loose body (24) scattered on the inner wall of the collecting furnace (33) will be cleaned by the cleaning mechanism (35). The cleaning mechanism (35) gathers the cleaned loose body (24) to the bottom of the collecting furnace (33). After the sintering is completed, the exhaust component (5) discharges the exhaust gas in the furnace (13) to keep the gas pressure in the furnace (13) stable. Finally, the collecting furnace (33) is taken out and the waste slag at the bottom of the collecting furnace (33) is cleaned.

Images