Device and method for detecting heat resistance of filter lens

Abstract

The invention discloses a filter lens heat resistance detection device and a detection method thereof, and relates to the technical field of filter lens detection.The filter lens heat resistance detection device comprises a main body, a rotating cylinder is movably connected to the interior of the main body, a plurality of heating modules are evenly arranged in the rotating cylinder, and adjusting conveying mechanisms are arranged on the two sides of the interior of each heating module; spacing self-adaption mechanisms matched with the adjusting conveying mechanisms are arranged on the two sides of the interior of the heating module correspondingly. Two sets of conveying frames of the adjusting conveying mechanism play a role in clamping and fixing the filter lenses, meanwhile, the filter lenses of different specifications can be clamped through the distance self-adaption mechanism, and meanwhile the distance between the two sets of heating frames in each set of heating module can be adjusted; according to the device, the heat resistance of multiple groups of filter lenses with different specifications can be detected at the same time, and the device can adapt to the distance between the filter lenses with different specifications and a heat source during heating, so that the overall heat resistance detection effect is better, and the overall detection precision is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of filter detection, and particularly to a filter heat resistance detection device and a detection method thereof. Background Technique

[0002] With the rapid development of modern technology, as a key optical element, filters have extensive and indispensable applications in many fields such as optical instruments, electronic devices, medical devices, aerospace, etc. Whether in a high-precision optical imaging system or in a complex electronic circuit, the performance of the filter directly affects the working effect and stability of the entire system.

[0003] Among them, heat resistance, as an important performance index of the filter, plays a decisive role in the normal use of the filter in various different working environments. For example, in some electronic devices working in high-temperature environments, the filter needs to have good heat resistance to ensure that its optical characteristics do not change significantly due to the increase in temperature, so as to ensure the normal operation of the device. Therefore, heat resistance detection equipment is required to conduct heat resistance experiments on the filter. In terms of detection equipment, existing detections usually use traditional high-temperature test chambers, where the heat resistance temperature range of the filter is generally between -20°C and 80°C, which is sufficient for the filter to meet normal use in most scenarios.

[0004] In the prior art, when it is necessary to detect multiple different types of filters, since only one group can be detected at a time and batch detection cannot be performed, the detection work becomes extremely cumbersome, consuming a large amount of time and labor costs. On the other hand, after the filter is heated at high temperature, it still needs to be manually taken out of the high-temperature test chamber by the staff and then subsequent optical experiments are carried out, which greatly increases the labor intensity of the staff and is also prone to introducing human errors during the taking-out process. In addition, manual operation makes the entire detection process discontinuous and cannot achieve automated detection, further reducing the detection efficiency. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a filter heat resistance detection device and a detection method thereof to solve the technical problems in the prior art that the heat resistance detection equipment can only detect one group at a time and cannot perform batch detection, and after the detection is completed, it is necessary to manually take out the filter for optical experiments, which not only affects the work efficiency and increases the labor intensity, but also causes errors in the optical experiments of the filter after heating.

[0006] To achieve the above object, the present invention provides the following technical solution: A filter heat resistance detection device, including a main body, a rotating cylinder is movably connected inside the main body, and a plurality of heating modules are uniformly arranged inside the rotating cylinder. Each heating module includes a fixed cylinder and a heating rack, and the top and bottom of each fixed cylinder are axially slidably connected with a heating rack; On both sides inside each group of the heating modules, an adjustment and conveying mechanism is provided. The adjustment and conveying mechanism includes a conveying frame, an adjustment frame, a cross frame, and a conveyor belt. The outside of the conveying frame is fixedly connected to the inclined block. The adjustment frame is slidably connected to the conveying frame, and the cross frame is fixed to the end of one side of the conveying frame. Inside the cross frame, a driving shaft and a limiting shaft are movably connected to both sides. The ends of the conveying frame and the adjustment frame are respectively rotatably connected to a first driven shaft and a second driven shaft. The conveyor belt is sequentially wound around the outside of the driving shaft, the limiting shaft, the first driven shaft, and the second driven shaft. The adjustment and conveying mechanism further includes a sliding frame, an adjustment connecting rod, a rack, a driving shaft, and a gear. The sliding frame is slidably connected to the cross frame, and the driving shaft is rotatably connected inside the sliding frame. An adjustment connecting rod is movably connected between the sliding frame and the adjustment frame. The rack is fixed to the top of the cross frame, the driving shaft is fixedly connected to the top of the driving shaft, and a gear meshing with the rack is arranged on the outside of the driving shaft. The adjustment and conveying mechanism further includes a fixing ring, an elastic sheet, and a limiting ring. The fixing ring is fixed to the outside of the driving shaft. A plurality of groups of elastic sheets extending into the fixing ring are evenly fixed to the outside of the driving shaft, and a limiting ring intersecting with the plurality of groups of elastic sheets is arranged inside the fixing ring. On both sides inside the heating module, a spacing self - adapting mechanism matching with the adjustment and conveying mechanism is respectively provided. The spacing self - adapting mechanism includes an inclined block and a lifting plate. The lifting plates matching with the two heating racks are slidably connected to the top and bottom of the inclined block. The spacing self - adapting mechanism further includes a spring and a stabilizing rod. A spring is fixed between the inclined block and the fixed cylinder, and a stabilizing rod located inside the spring and slidably connected to the fixed cylinder is fixed to one side of the inclined block. At the top and bottom of the main body, a centralized control module is fixed. At the top and bottom of the central position inside the main body, an optical detection camera and a receiving module are respectively arranged. The optical detection camera, the receiving module, and the centralized control module are fixedly connected through a mounting ring.

[0007] By adopting the above - mentioned technical solution, a plurality of heating modules are arranged inside the main body. Inside each group of heating modules, a spacing self - adapting mechanism is arranged. Workers can respectively place a plurality of filter lenses with different specifications into the heating modules. The two conveying frames of the adjustment and conveying mechanism play a role in clamping and fixing the filter lenses. At the same time, the spacing self - adapting mechanism can clamp filter lenses with different specifications, and thus heat resistance detection can be carried out. Meanwhile, according to the characteristic that large-sized filters need to be closer to the heat source and small-sized filters need to be farther from the heat source, during the clamping process of the filters, the filters can drive the two heating racks inside each heating module to adjust the distance under the action of the inclined block and the lifting plate. Specifically, when a large-sized filter is subjected to the heat resistance test, the distance between the two corresponding heating racks and it decreases at this time; when a small-sized filter is subjected to the heat resistance test, the distance between the two corresponding heating racks and it increases at this time. As can be seen from the above, not only can the heat resistance tests of multiple groups of filters with different specifications be carried out simultaneously, but also the distance between the filter and the heat source during heating of filters with different specifications can be adapted, making the overall heat resistance test effect better and effectively improving the overall detection accuracy.

[0008] Further, the adjusting and conveying mechanism further includes a motor and a limiting sliding plate. The motor is slidably connected to the cross frame, and its output end is fixedly connected to the driving shaft. The outer side of the top of the driving shaft is movably connected with a limiting sliding plate extending into the cross frame.

[0009] By adopting the above technical solution, the motor drives the driving shaft to rotate to drive the conveyor belt. The conveyor belts on both sides of the filter move in opposite directions at the same time, and then the filter can be driven to move.

[0010] Further, the distance self-adaptive mechanism further includes an inclined sliding block, an inclined sliding groove and a fixed guiding rod. The lifting plate and the inclined block are slidably connected through the inclined sliding block, and the inclined sliding groove matched with the inclined sliding block is arranged inside the inclined block. Both sides inside the fixed cylinder are fixedly provided with fixed guiding rods penetrating through the inclined block.

[0011] By adopting the above technical solution, under the action of the inclined sliding block and the inclined sliding groove, the connection between the inclined block and the lifting plate can be stable and does not affect the overall distance adjustment. The fixed guiding rod plays a guiding role in the movement of the inclined block, making it more stable.

[0012] Further, one end of the fixed cylinder is fixedly provided with a feeding port, and a lifting door is slidably connected inside the feeding port. One end of the fixed cylinder is movably connected with a sealing and flipping plate. A through hole is arranged at one end of the main body. A rotating ring extending into the main body is fixedly provided on the outer side of the rotating cylinder, and the rotating cylinder and the main body are movably connected.

[0013] By adopting the above technical solution, when the lifting door is opened, the filter to be detected can be inserted into the heating module. At the same time, after the filter is heated up, the extension of the adjusting frame can push open the sealing and flipping plate, and then the filter can be moved to the optical detection area.

[0014] Furthermore, on both sides of each fixed cylinder, a first fitting shell and a second fitting shell that cooperate with the adjustment conveying mechanism and the spacing self - adapting mechanism are respectively arranged, and the surfaces of the first fitting shell and the second fitting shell are covered with heat - insulating materials.

[0015] By adopting the above - mentioned technical solution, the first fitting shell and the second fitting shell play a role in protecting the adjustment conveying mechanism and the spacing self - adapting mechanism, and at the same time avoid the problem of rapid heat dissipation inside the heating module.

[0016] A method for detecting the heat resistance of a filter lens, the process of which includes the following steps: S1: Filter lens loading process: The staff sequentially clamp different - sized filter lenses with tools and insert them into each heating module. Under the action of two conveyor belts, the filter lenses are clamped and fixed. Under the passive movement of the spacing self - adapting mechanism, different - sized filter lenses can be clamped and fixed. S2: Heat source distance self - adapting adjustment: Under the action of the inclined block and the lifting plate, the distance between different - sized filter lenses and the heat source can be adjusted, that is, the distance between the filter lens and the heating rack is adjusted, better adapting to the heat - resistance detection of different - sized filter lenses and making the temperature - rising process of different - sized filter lenses more uniform. S3: Filter lens temperature - rising process: After the filter lens is stably clamped, at this time, the two heating racks in each heating module are heated simultaneously. Each heating module adopts separate temperature - zone control and adjustment, and different - sized filter lenses can be heated to different degrees during the heat - resistance detection. S4: Process of moving the filter lens to the detection area: After the filter lens is heated to the specified temperature, at this time, the adjustment conveying mechanism is started. Under the action of the motor, the adjustment frame extends relative to the conveying frame, and at the same time, the conveyor belt extends passively. Under the operation of the conveyor belt, the filter lens can be driven to move to the optical detection area. S5: Filter lens optical detection process: Through the cooperation of the optical detection camera and the receiving module, the filter lens heated to the specified temperature can be subjected to an optical experiment, detecting the light transmittance of the filter lens after heating and simultaneously being able to detect the appearance changes of the filter lens after heating, etc. At the same time, the detection data is transmitted to the computer for operations such as calculation and analysis, so as to obtain relevant data on the heat resistance of the filter lens. S6: Process of the filter lens returning to the heating module for re - heating: After the above - mentioned detection is completed, at this time, the above - mentioned structure runs in reverse, making the filter lens move to the inside of the heating module again for re - heating. After heating to the second - level temperature, the filter lens can be moved to the detection area again for optical detection. By performing reciprocating operations on a group of filter lenses, a group of filter lenses are heated step - by - step to the maximum temperature in sequence, making the overall heat - resistance detection of the filter lens more continuous and improving the overall work efficiency.

[0017] In summary, the present invention mainly has the following beneficial effects: 1. The present invention is provided with multiple groups of heating modules inside the main body. Each group of heating modules is provided with a spacing adaptive mechanism. Staff can place multiple sets of filter lenses of different specifications into the heating modules respectively. The two conveying frames of the adjusting conveying mechanism play a role in clamping and fixing the filter lenses. At the same time, the spacing adaptive mechanism can clamp filter lenses of different specifications, and then heat resistance detection can be carried out. At the same time, according to the characteristic that large-size filter lenses need to be closer to the heat source and small-size filter lenses need to be farther from the heat source, during the clamping process of the filter lenses, the filter lenses can drive the two heating racks inside each heating module to adjust the spacing under the action of the inclined blocks and the lifting plates. Specifically, when the large-size filter lenses are subjected to heat resistance detection, the distance between the two corresponding heating racks and them decreases at this time. When the small-size filter lenses are subjected to heat resistance detection, the distance between the two corresponding heating racks and them increases at this time. As can be seen from the above, not only can multiple sets of filter lenses of different specifications be simultaneously subjected to heat resistance detection, but also the distance between the filter lenses and the heat source during heating can be adapted, making the overall heat resistance detection effect better and effectively improving the overall detection accuracy; 2. The present invention uses the adjusting conveying mechanism to clamp and fix the filter lenses. Specifically, the conveyor belts inside the conveying frames are in contact with the outer edges of the filter lenses to clamp and fix them. When the filter lenses are heated to the specified temperature inside the heating module, the two conveyor belts in the two adjusting conveying mechanisms rotate in the opposite direction at the same time. Then, under the action of the conveyor belts, the filter lenses are driven to move. At the same time, under the synchronous rotation of the gears and the racks, the driving shaft moves along the cross frame. Then, under the action of the adjusting connecting rod and the sliding frame, the adjusting frame extends relative to the conveying frame to the optical detection area in the center of the main body. At this time, the conveyor belts are adjusted passively to adapt to the extended adjusting frame. Thus, as the conveyor belts continue to run, the heated filter lenses can be driven to move along the conveyor belts to the optical detection area. With the cooperation of the optical detection camera and the receiving module, real-time optical detection of the heated filter lenses can be carried out, effectively avoiding the problem in the prior art that the heated filter lenses still need to be manually taken out by staff for detection. This not only reduces the labor intensity of the staff, but also avoids introducing human errors during the taking-out process, realizes automatic detection, further improves the overall detection efficiency, and improves the accuracy of the experimental data of the heat resistance of the filter lenses. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the sectional exploded view of the whole of the present invention; Figure 2 is the enlarged view of the structure of the first perspective of the heating module of the present invention; Figure 3 is the enlarged sectional view of the present invention; Figure 4 For the present invention Figure 3 Magnified view of part A; Figure 5 Magnified sectional view of the heating module of the present invention; Figure 6 Partial structural schematic diagram of the present invention from the first perspective; Figure 7 Partial structural schematic diagram of the present invention from the second perspective; Figure 8 Exploded enlarged view of the spacing self - adapting mechanism of the present invention; Figure 9 Magnified structural schematic diagram of the adjustment conveying mechanism of the present invention; Figure 10 For the present invention Figure 9 Magnified view of part B; Figure 11 Partially magnified structural view of the adjustment conveying mechanism of the present invention; Figure 12 Partial sectional view of the adjustment conveying mechanism of the present invention; Figure 13 Magnified structural schematic diagram of the adjustment conveying mechanism of the present invention; Figure 14 Second - perspective magnified structural view of the heating module of the present invention; Figure 15 Overall structural schematic diagram of the present invention.

[0019] In the figure: 1, main body; 2, rotating cylinder; 3, heating module; 301, fixed cylinder; 302, heating rack; 303, connecting hole; 304, guide rod; 4, adjustment conveying mechanism; 401, conveying rack; 402, adjustment rack; 403, conveyor belt; 404, cross - rack; 405, driving shaft; 406, limiting shaft; 407, first driven shaft; 408, second driven shaft; 409, sliding rack; 410, adjustment connecting rod; 411, rack; 412, driving shaft; 413, fixed ring; 414, elastic sheet; 415, gear; 416, motor; 417, limiting sliding plate; 418, limiting ring; 5, spacing self - adapting mechanism; 501, inclined block; 502, lifting plate; 503, inclined sliding block; 504, inclined sliding groove; 505, fixed guide rod; 506, spring; 507, stabilizing rod; 6, first mating shell; 7, second mating shell; 8, feeding port; 9, lifting door; 10, centralized control module; 11, mounting ring; 12, optical detection camera; 13, rotating ring; 14, through - hole; 15, receiving module; 16, sealing and flipping plate. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation of the present invention.

[0021] Next, according to the overall structure of the present invention, its embodiments will be described.

[0022] A heat resistance detection device for a filter, as Figures 1 - 15 shown, includes a main body 1. A rotating cylinder 2 is movably connected inside the main body 1. A plurality of heating modules 3 are evenly arranged inside the rotating cylinder 2. The heating module 3 includes a fixed cylinder 301 and a heating rack 302. And at the top and bottom of each fixed cylinder 301, the heating racks 302 are axially slidably connected. At the top and bottom of the main body 1, a centralized control module 10 is fixed. Among them, between the plurality of heating racks 302 and the centralized control module 10, they are electrically connected through a conductive slip ring; At the top and bottom of the central position inside the main body 1, an optical detection camera 12 and a receiving module 15 are respectively arranged. Among them, the optical detection camera 12 and the receiving module 15 are not only electrically connected to the centralized control module 10, but also electrically connected to external devices through wires, which is convenient for processing and analyzing the detection data by a computer; On both sides of each heating module 3, an adjustment conveying mechanism 4 is arranged. The adjustment conveying mechanism 4 includes a conveying rack 401, an adjustment rack 402, a cross rack 404 and a conveyor belt 403. And between the outside of the conveying rack 401 and the inclined block 501, they are fixedly connected. Between the adjustment rack 402 and the conveying rack 401, they are slidably connected. And the cross rack 404 is fixed at one end of the side of the conveying rack 401; A driving shaft 405 and a limiting shaft 406 are movably connected to both sides inside the cross rack 404. The ends of the conveying rack 401 and the adjustment rack 402 are respectively rotatably connected to a first driven shaft 407 and a second driven shaft 408. The conveyor belt 403 is sequentially wound around the outside of the driving shaft 405, the limiting shaft 406, the first driven shaft 407 and the second driven shaft 408; The adjustment conveying mechanism 4 further includes a sliding rack 409, an adjustment connecting rod 410, a rack 411, a driving shaft 412 and a gear 415. Between the sliding rack 409 and the cross rack 404, they are slidably connected. And the driving shaft 405 is rotatably connected inside the sliding rack 409. An adjustment connecting rod 410 is movably connected between the sliding rack 409 and the adjustment rack 402. The rack 411 is fixed on the top of the cross rack 404. And the driving shaft 412 is fixedly connected to the top of the driving shaft 405. And a gear 415 meshing with the rack 411 is arranged on the outside of the driving shaft 412; Under the synchronous rotation of the gear 415 and the rack 411, the driving shaft 405 moves along the cross frame 404. Then, under the action of the adjusting link 410 and the sliding frame 409, the adjusting frame 402 extends relative to the conveying frame 401 to the optical detection area at the center inside the main body 1. At this time, the conveyor belt 403 is passively adjusted to adapt to the extended adjusting frame 402. The adjusting and conveying mechanism 4 further includes a fixing ring 413, an elastic sheet 414, and a limiting ring 418. The fixing ring 413 is fixed on the outer side of the driving shaft 412. A plurality of groups of elastic sheets 414 extending to the inside of the fixing ring 413 are evenly fixed on the outer side of the driving shaft 412, and a limiting ring 418 intersecting with the plurality of groups of elastic sheets 414 is provided inside the fixing ring 413. When the gear 415 is blocked and limited, at this time, since the driving shaft 405 needs to continue to rotate to drive the filter lens to move through the conveyor belt 403, the plurality of groups of elastic sheets 414 are passively squeezed and contracted. At the same time, the end face of the elastic sheet 414 will cross the blocking and limiting of the limiting ring 418 after its own contraction. That is to say, at this time, the continuous rotation of the driving shaft 405 will no longer drive the gear 415 to rotate, and thus will not affect the continuous conveyance of the filter lens by the driving shaft 405 through the conveyor belt 403. On both sides inside the heating module 3, a spacing self - adapting mechanism 5 matching with the adjusting and conveying mechanism 4 is respectively provided. The spacing self - adapting mechanism 5 includes an inclined block 501 and a lifting plate 502, and the lifting plate 502 slidingly connected to both the top and bottom of the inclined block 501 and matching with the two heating racks 302 is provided. The spacing self - adapting mechanism 5 further includes a spring 506 and a stabilizing rod 507. A spring 506 is fixed between the inclined block 501 and the fixed cylinder 301, and a stabilizing rod 507 located inside the spring 506 and slidingly connected to the fixed cylinder 301 is fixed on one side of the inclined block 501. Among them, the spring 506 provides a clamping force for the filter lens, and at the same time, by compressing the spring 506, filter lenses of different specifications can be clamped and fixed. The optical detection camera 12, the receiving module 15, and the centralized control module 10 are fixedly connected through the mounting ring 11, and the mounting ring 11 plays a role in fixedly installing the optical detection camera 12 and the receiving module 15.

[0023] Please refer to Figure 10 and Figure 11 , the adjusting and conveying mechanism 4 further includes a motor 416 and a limiting sliding plate 417. The motor 416 is slidably connected to the cross frame 404, and its output end is fixedly connected to the driving shaft 405. The limiting sliding plate 417 extending to the inside of the cross frame 404 is movably connected to the outer side of the top of the driving shaft 412. By setting the above - mentioned structure in the present invention, the motor 416 drives the driving shaft 405 to rotate to drive the conveyor belt 403. The conveyor belts 403 on both sides of the filter lens run in opposite directions at the same time, and thus can drive the filter lens to move.

[0024] Please refer to Figure 4 、 Figure 6 and Figure 7 As shown in, the spacing self - adapting mechanism 5 further includes an inclined slider 503, an inclined chute 504 and a fixed guide rod 505. The lifting plate 502 is slidably connected to the inclined block 501 through the inclined slider 503, and an inclined chute 504 matching the inclined slider 503 is provided inside the inclined block 501. Both sides inside the fixed cylinder 301 are fixed with fixed guide rods 505 passing through the inclined block 501. By setting the above - mentioned structure in the present invention, under the action of the inclined slider 503 and the inclined chute 504, the connection between the inclined block 501 and the lifting plate 502 can be stable and does not affect the overall spacing adjustment. The fixed guide rod 505 plays a guiding role in the movement of the inclined block 501, making it more stable.

[0025] Please refer to Figure 1 and Figure 15 As shown in, one end of the fixed cylinder 301 is fixed with a feeding port 8, and a lifting door 9 is slidably connected inside the feeding port 8. One end of the fixed cylinder 301 is movably connected with a sealing flap 16. A through - hole 14 is provided at one end of the main body 1. By setting the above - mentioned structure in the present invention, when the lifting door 9 is opened, the filter lens to be detected can be inserted into the heating module 3. At the same time, after the filter lens is heated up, the extension of the adjusting bracket 402 can push open the sealing flap 16, and then the filter lens can be moved to the optical detection area.

[0026] A rotating ring 13 extending into the main body 1 is fixed on the outside of the rotating cylinder 2, and the rotating cylinder 2 is movably connected to the main body 1. Among them, the staff can rotate the rotating ring 13, so that the rotating cylinder 2 rotates, making multiple feeding ports 8 align with the through - hole 14, and filter lenses of different specifications are inserted into multiple heating modules 3 in sequence.

[0027] Please refer to Figure 2 and Figure 14 As shown in, on both sides of each fixed cylinder 301, a first matching shell 6 and a second matching shell 7 matching the adjusting and conveying mechanism 4 and the spacing self - adapting mechanism 5 are respectively provided. The surfaces of the first matching shell 6 and the second matching shell 7 are covered with heat - insulating materials. By setting the above - mentioned structure in the present invention, the first matching shell 6 and the second matching shell 7 play a role in protecting the adjusting and conveying mechanism 4 and the spacing self - adapting mechanism 5, and at the same time avoid the problem of rapid heat dissipation inside the heating module 3.

[0028] A method for detecting the heat resistance of a filter lens, the process of which includes the following steps: S1: Filter lens loading process: The staff uses tools to clamp different specifications of filter lenses in turn and insert them into each heating module. Under the action of two conveyor belts, the filter lenses are clamped and fixed. Under the passive movement of the spacing adaptive mechanism, different specifications of filter lenses can be clamped and fixed. S2: Adaptive adjustment of heat source distance: Under the action of the inclined block and the lifting plate, the distance between the heat source and different specifications of filter lenses can be adjusted, that is, the distance between the filter lens and the heating rack is adjusted, which better adapts to the heat resistance detection of different specifications of filter lenses and makes the heating process of different specifications of filter lenses more uniform. S3: Filter lens heating process: After the filter lens is stably clamped, the two heating racks in each heating module are heated simultaneously. Each heating module adopts separate temperature zone control and adjustment, and different degrees of heating operations can be carried out on different specifications of filter lenses during heat resistance detection. S4: Process of moving the filter lens to the detection area: After the filter lens is heated to the specified temperature, the adjustment conveyor mechanism is started at this time. Under the action of the motor, the adjustment rack extends relative to the conveyor rack, and at the same time the conveyor belt extends passively. Under the operation of the conveyor belt, the filter lens can be driven to move to the optical detection area. S5: Optical detection process of filter lens: Through the cooperation of the optical detection camera and the receiving module, the optical experiment of the filter lens heated to the specified temperature can be carried out, the light transmittance of the filter lens after heating can be detected, and the appearance change of the filter lens after heating can be detected at the same time. At the same time, the detection data is transmitted to the computer for operations such as calculation and analysis, so as to obtain relevant data on the heat resistance of the filter lens. S6: Process of the filter lens returning to the heating module for re-heating: After the above detection is completed, at this time, the above structure runs in reverse, so that the filter lens moves back into the heating module again for re-heating operation. After heating to the second-level temperature, the filter lens can be moved to the detection area again for optical detection. A set of filter lenses are reciprocally operated, so that a set of filter lenses are heated step by step to the maximum temperature in turn, making the overall heat resistance detection of the filter lens more continuous and improving the overall work efficiency.

[0029] The working principle of the present invention is: When in use, the power is turned on. The two centralized control modules 10, the optical detection camera 12 and the receiving module 15 can be powered by an external power supply device. At the same time, the heating rack 302 at the top position in each heating module 3 is electrically connected to the centralized control module 10 at the top, and the heating rack 302 at the bottom position is electrically connected to the centralized control module 10 at the bottom. Furthermore, the heating rack 302 can be powered, so that the heating wire inside the heating rack 302 can be heated. A conductive slip ring is provided inside each set of centralized control modules 10 for matching, so as not to affect the rotation of the rotating cylinder 2 driving multiple sets of heating modules 3. Specifically, by manually rotating the rotating ring 13 by the staff, the rotating cylinder 2 can be rotated relative to the main body 1, so that each set of heating modules 3 is opposite to its through hole 14, facilitating the staff to place the filter lens to be detected into the interior of the heating module 3; Manually pull the lifting door 9, so that the lifting door 9 moves upward relative to the feeding port 8, and then the feeding port 8 is opened, and the filter lens to be detected can be placed into the interior of the heating module 3; By providing multiple sets of heating modules 3 inside the main body 1, and a spacing adaptive mechanism 5 is provided inside each set of heating modules 3. The staff can place multiple sets of filter lenses of different specifications into the heating modules 3 respectively. The two conveying frames 401 of the adjusting conveying mechanism 4 play a role in clamping and fixing the filter lenses. At the same time, the spacing adaptive mechanism 5 can clamp filter lenses of different specifications, and then heat resistance detection can be carried out; At the same time, according to the characteristic that large-sized filter lenses need to be closer to the heat source and small-sized filter lenses need to be farther from the heat source, during the clamping process of the filter lenses, the filter lenses can drive the two heating racks 302 inside each set of heating modules 3 to adjust the spacing under the action of the inclined block 501 and the lifting plate 502; Specifically, when the large-sized filter lens is subjected to heat resistance detection, the distance between its corresponding two heating racks 302 and it decreases. When the small-sized filter lens is subjected to heat resistance detection, the distance between its corresponding two heating racks 302 and it increases; As can be seen from the above, not only can multiple sets of filter lenses of different specifications be subjected to heat resistance detection simultaneously, but also the distance between the filter lenses and the heat source during heating of different specifications of filter lenses can be adapted, making the overall heat resistance detection effect better and effectively improving the overall detection accuracy; The adjusting conveying mechanism 4 is used to clamp and fix the filter lenses. Specifically, the conveyor belt 403 inside the conveying frame 401 contacts the outer edge of the filter lens to play a role in clamping and fixing it. Further, the conveyor belt 403 is made of a high-temperature resistant material, and its heat receiving range is greater than the highest detection stability of the heat resistance detection of the filter lens, so it will not affect the conveyor belt 403; When the filter lens is heated to the specified temperature inside the heating module 3, at this time, the two conveyor belts 403 in the two adjusting conveying mechanisms 4 rotate in the opposite direction at the same time, and then drive the filter lens to move forward under the action of the conveyor belt 403; Meanwhile, under the synchronous rotation of the gear 415 and the rack 411, the driving shaft 405 moves along the cross frame 404. Then, under the action of the adjusting link 410 and the sliding frame 409, the adjusting frame 402 extends relative to the conveying frame 401 to the optical detection area at the center inside the main body 1. At this time, the conveyor belt 403 is adjusted passively to adapt to the extended adjusting frame 402. Specifically, when the driving shaft 405 and the gear 415 are elastically squeezed and connected through multiple elastic pieces 414, and under the action of the limiting ring 418, it can play a role in blocking and limiting the end face of the elastic piece 414 to a certain extent. Then, when the gear 415 has no limit, under the action of the elastic friction force, the driving shaft 405 can drive the gear 415 to rotate, and then the gear 415 can perform a climbing tooth movement along the rack 411. When the gear 415 moves to the end of the rack 411, at this time, under the action of the sliding frame 409 and the adjusting link 410, the adjusting frame 402 has completely extended relative to the conveying frame 401. At this time, the adjusting frame 402 is located in the optical detection area, and at this time, the filter lens just moves to the end of the conveying frame 401 under the action of the conveyor belt 403. When the gear 415 is blocked and limited, at this time, since the driving shaft 405 needs to continue to rotate to drive the filter lens to move through the conveyor belt 403, multiple elastic pieces 414 are passively squeezed and contracted. At the same time, the end face of the elastic piece 414 will cross the blocking and limiting of the limiting ring 418 after its own contraction. That is to say, at this time, the continuous rotation of the driving shaft 405 will no longer drive the gear 415 to rotate, and thus will not affect the continuous conveyance of the filter lens by the driving shaft 405 through the conveyor belt 403. At this time, the continuous conveyance of the conveyor belt 403 can convey the heated filter lens to the optical detection area, that is, move it between the optical detection camera 12 and the receiving module 15. Then, under the action of the optical detection camera 12 and the receiving module 15, it can detect the light transmittance of the heated filter lens and at the same time can detect the appearance change of the heated filter lens, etc. At the same time, the detection data is transmitted to the computer for operations such as calculation and analysis, so as to obtain relevant data on the heat resistance of the filter lens. As can be seen from the above, it effectively avoids the problem that the heated filter lens in the prior art still needs to be manually taken out by the staff for detection. It not only reduces the labor intensity of the staff, but also avoids introducing human errors during the taking-out process, realizes automatic detection, further improves the overall detection efficiency, and improves the accuracy of the experimental data on the heat resistance of the filter lens. Furthermore, after the optical detection of the heated filter is completed, the conveyor belt 403 runs in the reverse direction, which can drive the filter to retract into the interior of the heating module 3. Specifically, when running in the reverse direction, the gear 415 moves along the rack 411 in the reverse direction, so that the adjusting frame 402 contracts into the interior of the conveying frame 401 under the action of the adjusting link 410. At the same time, the conveyor belt 403 runs in the reverse direction, synchronously driving the filter to move into the heating module 3, and the situation of the filter falling during the return journey will not occur. The filter can be moved back into the heating module 3 to continue the heating operation and detect the optical performance of the filter at a higher temperature.

[0030] Although the embodiments of the present invention have been shown and described, the specific embodiments are only explanations of the present invention and not limitations thereof. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions and variations without creative contributions to the embodiments according to needs, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A device for detecting heat resistance of a filter, comprising a main body (1), characterized in that: The main body (1) is movably connected to a rotating cylinder (2), and a plurality of groups of heating modules (3) are evenly arranged inside the rotating cylinder (2); The heating module (3) comprises a fixed cylinder (301) and a heating frame (302), and the top and bottom ends of each set of fixed cylinders (301) are axially slidably connected to the heating frame (302), and both sides of each set of heating modules (3) are provided with an adjusting conveying mechanism (4), and both sides of the heating module (3) are provided with a spacing adaptive mechanism (5) that cooperates with the adjusting conveying mechanism (4), and the spacing adaptive mechanism (5) comprises an inclined block (501) and a lifting plate (502), and The top and bottom of the inclined block (501) are both slidably connected to a lifting plate (502) that matches the two sets of heating frames (302); the adjusting and conveying mechanism (4) comprises a conveying frame (401), an adjusting frame (402), a cross frame (404) and a conveying belt (403); the outer side of the conveying frame (401) and the inclined block (501) are fixedly connected; the adjusting frame (402) and the conveying frame (401) are slidably connected; and the cross frame (404) is fixed to one end of the conveying frame (401); A driving shaft (405) and a limiting shaft (406) are movably connected to both sides of the interior of the cross frame (404); the ends of the conveying frame (401) and the adjusting frame (402) are rotatably connected to a first driven shaft (407) and a second driven shaft (408); and conveyor belts (403) are sequentially wound around the outer sides of the driving shaft (405), the limiting shaft (406), the first driven shaft (407) and the second driven shaft (408).

2. The filter heat resistance detection device according to claim 1, characterized in that: The adjusting conveying mechanism (4) further comprises a sliding frame (409), an adjusting connecting rod (410), a rack (411), a driving shaft (412) and a gear (415); the sliding frame (409) and the cross frame (404) are slidably connected, and the driving shaft (405) is rotatably connected inside the sliding frame (409); and the adjusting connecting rod (410) is movably connected between the sliding frame (409) and the adjusting frame (402).

3. The filter heat resistance detection device according to claim 2, characterized in that: The rack (411) is fixed to the top of the cross frame (404), and the drive shaft (412) is fixedly connected to the top of the driving shaft (405), and a gear (415) meshing with the rack (411) is arranged on the outside of the drive shaft (412).

4. The filter heat resistance detection device according to claim 3, characterized in that: The regulating conveying mechanism (4) further comprises a fixing ring (413), an elastic sheet (414) and a limiting ring (418); the fixing ring (413) is fixed to the outside of the driving shaft (412); a plurality of groups of elastic sheets (414) extending into the interior of the fixing ring (413) are evenly fixed to the outside of the driving shaft (412); and a limiting ring (418) interlaced with the plurality of groups of elastic sheets (414) is provided inside the fixing ring (413).

5. The filter heat resistance detection device according to claim 4, characterized in that: The regulating conveying mechanism (4) further comprises a motor (416) and a limit sliding plate (417); the motor (416) is slidably connected to the cross frame (404), and its output end is fixedly connected to the driving shaft (405); the top outer side of the driving shaft (412) is movably connected to the limit sliding plate (417) extending into the interior of the cross frame (404).

6. The device for detecting heat resistance of optical filters according to claim 1, characterized in that: The spacing adaptive mechanism (5) further comprises an inclined sliding block (503), an inclined sliding groove (504) and a fixed guide rod (505); the lifting plate (502) and the inclined block (501) are slidably connected via the inclined sliding block (503); an inclined sliding groove (504) matching the inclined sliding block (503) is provided inside the inclined block (501); and fixed guide rods (505) penetrating the inclined block (501) are fixed on both sides inside the fixed cylinder (301).

7. The device for detecting heat resistance of optical filters according to claim 1, characterized in that: The spacing adaptive mechanism (5) further comprises a spring (506) and a stabilizing rod (507); the spring (506) is fixed between the inclined block (501) and the fixed cylinder (301); and a stabilizing rod (507) located inside the spring (506) and slidably connected to the fixed cylinder (301) is fixed on one side of the inclined block (501).

8. The filter heat resistance detection device according to claim 1, characterized in that: A centralized control module (10) is fixed at the top and bottom of the main body (1), and an optical detection camera (12) and a receiving module (15) are respectively arranged at the top and bottom of the center position of the main body (1), and the optical detection camera (12), the receiving module (15) and the centralized control module (10) are fixedly connected via a mounting ring (11).

9. The device for detecting heat resistance of optical filters according to claim 1, characterized in that: A loading port (8) is fixed at one end of the fixed cylinder (301), and a lifting door (9) is slidably connected inside the loading port (8); a sealing flip plate (16) is movably connected at one end of the fixed cylinder (301); a through hole (14) is opened at one end of the main body (1); a rotating ring (13) extending into the interior of the main body (1) is fixed at the outer side of the rotating cylinder (2), and the rotating cylinder (2) and the main body (1) are movably connected.

10. A method for detecting heat resistance of a filter, characterized in that The heat resistance test of a filter is performed using the heat resistance test device of any one of claims 1 to 9, and the process comprises the following steps: S1: Filter loading process: The staff uses tools to clamp filters of different specifications and insert them into each set of heating modules. The filters are clamped and fixed under the action of two sets of conveyor belts. The filters of different specifications can be clamped and fixed under the passive movement of the spacing adaptive mechanism. S2: Adaptive adjustment of heat source distance: Under the action of the inclined block and the lifting plate, the distance from the heat source of filters of different specifications can be adjusted, that is, the distance between the filter and the heating frame can be adjusted, so as to better adapt to the heat resistance test of filters of different specifications and make the heating process of filters of different specifications more uniform; S3: Filter heating process: After the filter is clamped stably, the two sets of heating racks in each heating module are heated simultaneously. Each heating module adopts a separate temperature zone control and adjustment, so that filters of different specifications can be heated to different degrees during heat resistance testing. S4: The process of moving the filter to the detection area: After the filter is heated to the specified temperature, the adjustment conveying mechanism is started, wherein the adjustment frame is extended relative to the conveying frame under the action of the motor, and the conveying belt is passively extended, and the filter can be driven to move to the optical detection area under the operation of the conveying belt; S5: Optical testing process of filters: With the cooperation of optical testing cameras and receiving modules, optical experiments can be conducted on filters heated to a specified temperature to test the light transmittance of the filters after heating and the changes in the appearance of the filters after heating. The test data is transmitted to a computer for calculation and analysis, thereby obtaining relevant data on the heat resistance of the filters. S6: The filter returns to the heating module to continue the heating process: After the above-mentioned detection is completed, the above-mentioned structure is reversed to move the filter to the inside of the heating module again, and the filter is heated again. After the temperature reaches the second level, the filter can be moved to the detection area for optical detection again. The reciprocating operation is performed on a group of filters, so that a group of filters are heated up to the maximum temperature in a step-by-step manner. The overall heat resistance test of the filter is more continuous, thereby improving the overall work efficiency.

Images