Filter performance detection device and method for filter production

Abstract

This invention discloses a filter performance testing device and method for filter production, relating to the field of filter testing. The device includes a testing platform with a conveyor belt. Several baffles are spaced along the conveyor belt, and a limiting section is formed between adjacent baffles. A filter is placed within the limiting section, and test connectors are provided at both ends of the filter. The test connectors have connecting threads on their exterior. A controller is located on the side of the testing platform. This filter performance testing device and method, through the cooperation of the conveyor belt, baffles, limiting section, vector network detector connector, auxiliary testing unit, and defective product unloading unit, enables continuous performance testing of the filter during the filter testing process. Simultaneously, it allows for the classification and collection of tested filters, making the filter testing process more efficient and the test results more accurate.

Description

Technical Field

[0001] This invention relates to filter testing technology, specifically to a filter performance testing device and method for filter production. Background Technology

[0002] Filters are key components widely used in electronics, communications, power, medical and other fields. They are mainly used for signal processing and noise suppression. The performance and quality of filters are directly related to the stability and reliability of the system. In order to accurately evaluate the performance and reliability of filters, they usually need to be tested after production. Filter testing usually requires the assistance of a vector network tester, and the connectors need to be connected during the test, so it is mostly done manually. Chinese invention patent CN119525169B discloses a radio frequency filter performance testing device, comprising: a main body mechanism, a rotating mechanism, a positioning mechanism, a testing mechanism, and a moving mechanism. With the cooperation of a visual inspection device, an electric clamp, an X-ray inspection device, and a plug connection device, it can test various aspects of the filter, including its appearance, internal structure, and performance. This not only improves product quality and reliability but also ensures system stability and safety. After testing, the electric clamp and electric telescopic rod automatically identify and remove defective filters without manual intervention, accelerating the production process and preventing human error. A laser engraving head can mark defective filters, facilitating quick problem location for maintenance personnel and improving the effectiveness and timeliness of filter repair. However, in practical applications, it can only detect surface and internal structural defects of the filter. It cannot detect the filter's frequency response, insertion loss, return loss, phase response, group delay, and S-parameters, thus failing to comprehensively evaluate the filter's actual performance. Summary of the Invention

[0003] The purpose of this invention is to provide a filter performance testing device and method for filter production, so as to overcome the above-mentioned shortcomings in the prior art. To achieve the above objectives, the present invention provides the following technical solution: a filter performance testing device for filter production, comprising a testing platform, a conveyor belt on the testing platform, a plurality of baffles spaced apart on the conveyor belt, a limiting part formed between adjacent baffles, a filter placed in the limiting part, test connectors at both ends of the filter, connecting threads on the outside of the test connectors, and a controller on the side of the testing platform. The testing platform is provided with a first mounting bracket and a second mounting bracket in sequence along the filter conveying direction. Vector network detector connectors are symmetrically arranged on both sides of the testing platform, located on both sides of the conveyor belt. An auxiliary testing unit is provided below the first mounting bracket, which is used to drive the vector network detector connector to stably connect with the test connector on the filter. The top of the testing platform is provided with symmetrically arranged unloading chutes located below the second mounting bracket. A faulty product unloading unit corresponding to the unloading chutes is provided below the second mounting bracket. The end of the testing platform is provided with an unloading guide plate corresponding to the conveyor belt. Furthermore, the auxiliary testing unit includes a bidirectional screw installed on the top of the inner wall of the first mounting bracket. Both ends of the bidirectional screw are symmetrically threaded with drive blocks. The drive blocks are slidably connected to the top of the inner wall of the first mounting bracket. A support bar is installed at the bottom of the drive block. A T-slot is formed at the bottom of the support bar. A connecting plate is slidably connected to the inner side of the T-slot. An auxiliary spring is fixedly connected between the inner wall of the T-slot and the connecting plate. A connecting rod is installed at the bottom of the connecting plate. A ring seat is rotatably connected to the end of the connecting rod. A connecting sleeve is fixedly connected to the end of the ring seat. The connecting sleeve has a mating thread adapted to the connecting thread. Furthermore, the connecting sleeve is fitted onto the outside of the vector network tester connector, and the connecting sleeve is rotatably connected to the vector network tester connector, with the position of the connecting sleeve corresponding to the test connector. Furthermore, a mounting base is installed on the outside of the connecting plate, and a drive wheel is rotatably connected to the end of the mounting base, the drive wheel being driven by a motor. Furthermore, the defective product unloading unit includes a reciprocating screw rotatably connected to the top of the inner wall of the second mounting frame, a moving block externally connected to the reciprocating screw, the moving block being slidably connected to the top of the inner wall of the second mounting frame, and a lever mounted on the bottom of the moving block. Furthermore, a first detection sensor is installed on the top of the inner wall of the first mounting frame, and a second detection sensor is installed on the top of the inner wall of the second mounting frame. The conveyor belt, the bidirectional screw, and the reciprocating lead screw are all driven by motors. The first detection sensor, the second detection sensor, and the motor are all electrically connected to the controller. Furthermore, the top of the testing platform is provided with a mounting groove, and the mounting groove is provided with a feeding section, a guiding section, a conveying section and a discharging section in sequence along the conveying direction of the filter. The width of the feeding section is greater than the width of the conveying section. The guiding section is inclined and its width gradually decreases along the conveying direction of the filter. The width of the guiding section is adapted to the filter. The conveyor belt is set inside the mounting groove, and when the filter is placed on the conveyor belt, the position of the test connector is higher than the upper surface of the testing platform. Furthermore, a substrate is mounted on the surface of the limiting part, and an adhesive part is provided at one end of the bottom of the substrate. The substrate is fixedly connected to the limiting part through the adhesive part. An elastic band is installed between the bottom side of the substrate away from the adhesive part and the adhesive part. Several rollers are equidistantly arranged on the surface of the substrate along the width direction of the conveyor belt. This invention also provides a method for testing the filtering performance of filters used in filter manufacturing, employing the aforementioned device for testing the filtering performance of filters used in filter manufacturing, and comprising the following steps: S1. The operator manually or via an external robotic arm places the filter in the limiting section on the conveyor belt and then conveys it forward via the conveyor belt. S2. When the filter moves to the position of the auxiliary test unit, the vector network detector connector is stably connected to the test connector on the filter through the auxiliary test unit, and the filter is tested and the test results are obtained. S3. The conveyor belt transports the tested filters to the faulty product unloading unit. Based on the test results, the faulty product unloading unit pushes the faulty filters out from the side unloading chute, while qualified products are discharged from the end of the conveyor belt. Compared with the prior art, the filter performance testing device and method for filter production provided by the present invention have the following advantages: 1. The filter performance testing device and method for filter production, through the cooperation of the conveyor belt, baffle, limiting part, vector network detector connector, auxiliary testing unit and faulty product unloading unit, can continuously test the performance of the filter during the filter testing process, and can also classify and collect the tested filters, thereby making the filter testing process more efficient and the test results more accurate. 2. The filter performance testing device and method for filter production, through the cooperation between the substrate, roller, bonding part and elastic belt, can not only ensure the smooth movement of the filter during the filter position correction and fault filter unloading process, but also allow the substrate to pass smoothly from the conveyor belt shaft end without damaging the roller. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings. Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention; Figure 2 This is a schematic diagram of the connector structure of the filter and vector network detector provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the first mounting bracket structure provided in an embodiment of the present invention; Figure 4 This is a partial cross-sectional view of the support strip provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the second mounting bracket structure provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the overall top view structure provided for an embodiment of the present invention; Figure 7 This is a partial structural diagram of the conveyor belt provided in an embodiment of the present invention. Explanation of reference numerals in the attached figures: 1. Detection table; 2. Conveyor belt; 21. Stop bar; 22. Restriction part; 23. Controller; 3. First mounting bracket; 31. Second mounting bracket; 32. Vector network detector connector; 33. Discharge chute; 34. Discharge guide plate; 4. Bidirectional screw; 41. Drive block; 42. Support bar; 43. T-slot; 44. Connecting plate; 45. Auxiliary spring; 46. Connecting rod; 47. Ring seat; 48. Connecting sleeve; 49. Mounting seat; 410. Drive wheel; 5. Reciprocating screw; 51. Moving block; 52. Lever; 6. First detection sensor; 61. Second detection sensor; 7. Placement groove; 71. Feeding part; 72. Guide part; 73. Conveying part; 74. Discharge part; 8. Substrate; 81. Adhesive part; 82. Elastic band; 83. Roller. Detailed Implementation To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings. Example 1: Please see Figures 1-7 A filter performance testing device for filter production includes a testing platform 1, a conveyor belt 2 on the testing platform 1, a plurality of baffles 21 spaced apart on the conveyor belt 2, a limiting part 22 formed between adjacent baffles 21, a filter placed in the limiting part 22, test connectors provided at both ends of the filter, connecting threads provided on the outside of the test connectors, and a controller 23 provided on the side of the testing platform 1. The testing platform 1 is provided with a first mounting frame 3 and a second mounting frame 31 arranged sequentially along the filter conveying direction. Vector network detector connectors 32 are symmetrically arranged on both sides of the testing platform 1, located on both sides of the conveyor belt 2. An auxiliary testing unit is provided below the first mounting frame 3, which is used to drive the vector network detector connector 32 to stably connect with the test connector on the filter. The top of the testing platform 1 is provided with symmetrically arranged unloading chutes 33 located below the second mounting frame 31. A faulty product unloading unit corresponding to the unloading chutes 33 is provided below the second mounting frame 31. The end of the testing platform 1 is provided with an unloading guide plate 34 corresponding to the conveyor belt 2. During the testing process, the operator manually or via an external robotic arm places the filter in the limiting part 22 on the conveyor belt 2, and the filter is conveyed forward by the conveyor belt 2. When the filter moves to the position of the auxiliary testing unit, the vector network detector connector 32 is stably connected to the test connector on the filter through the auxiliary testing unit, and the filter is tested and the test results are obtained. After that, the conveyor belt 2 conveys the tested filter to the faulty product unloading unit, and controls the faulty product unloading unit to push the faulty filter and discharge it from the side unloading chute 33 according to the test results. The qualified products are discharged from the end of the conveyor belt 2. The specific structure of the auxiliary testing unit is described below. The auxiliary testing unit includes a bidirectional screw 4 installed on the top of the inner wall of the first mounting bracket 3. Both ends of the bidirectional screw 4 are symmetrically threaded with drive blocks 41. The drive blocks 41 are slidably connected to the top of the inner wall of the first mounting bracket 3. A support bar 42 is installed at the bottom of the drive block 41. A T-slot 43 is opened at the bottom of the support bar 42. A connecting plate 44 is slidably connected to the inner side of the T-slot 43. An auxiliary spring 45 is fixedly connected between the inner wall of the T-slot 43 and the connecting plate 44. The auxiliary spring 45 is located on the side of the connecting plate 44 away from the conveyor belt 2. A connecting rod 46 is installed at the bottom of the connecting plate 44. A ring seat 47 is rotatably connected to the end of the connecting rod 46. A connecting sleeve 48 is fixedly connected to the end of the ring seat 47. The connecting sleeve 48 has a mating thread that matches the connecting thread. It should be noted that the connecting sleeve 48 is sleeved on the outside of the vector network tester connector 32, and the connecting sleeve 48 is rotatably connected to the vector network tester connector 32. The position of the connecting sleeve 48 corresponds to the test connector. Furthermore, a mounting base 49 is mounted on the outside of the connecting plate 44, and a drive wheel 410 is rotatably connected to the end of the mounting base 49. The drive wheel 410 is driven by a motor. When the auxiliary test unit is in operation, when the filter is delivered to the test position, the bidirectional screw 4 drives the two drive blocks 41 on both sides to move synchronously closer to each other, and drives the two connecting sleeves 48 on both sides to move to abut against the test connectors on both sides of the filter. After the connecting sleeves 48 abut against the test connectors, the bidirectional screw 4 continues to drive the two drive blocks 41 on both sides to move, so that the support bar 42 and the connecting plate 44 move relative to each other, and compress the auxiliary spring 45 to a certain extent. After the bidirectional screw 4 stops moving, there is contact pressure between the connecting sleeves 48 and the test connectors. At this time, the motor drives the drive wheel 410 to rotate, and the rotation of the drive wheel 410 drives the connecting sleeve 48 to rotate, so that the connecting sleeve 48 can be threadedly connected to the test connector under the cooperation between the mating thread and the connecting thread. When the connecting sleeve 48 moves, it also drives the vector network detector connector 32 to dock with the test connector, so that the vector network detector can effectively test the performance of the filter. The specific structure of the faulty product unloading unit is described below. The faulty product unloading unit includes a reciprocating screw 5 rotatably connected to the top of the inner wall of the second mounting frame 31. A moving block 51 is externally connected to the reciprocating screw 5. The moving block 51 is slidably connected to the top of the inner wall of the second mounting frame 31. A lever 52 is installed at the bottom of the moving block 51. When the faulty filter is detected and transported to the faulty filter unloading unit, the reciprocating screw 5 rotates and drives the moving block 51 to move from one end of the reciprocating screw 5 to the other end. The movement of the moving block 51 drives the lever 52 to move. During the movement of the lever 52, the faulty filter is pushed along the limiting part 22 and detached from its surface and falls into the unloading chute 33 for removal. Example 2: Please see Figure 2 , Figure 5 This embodiment provides a technical solution based on the above embodiments: a first detection sensor 6 is provided on the top of the inner wall of the first mounting frame 3, and a second detection sensor 61 is provided on the top of the inner wall of the second mounting frame 31. The conveyor belt 2, the bidirectional screw 4, and the reciprocating lead screw 5 are all driven by motors. The first detection sensor 6, the second detection sensor 61, and the motor are all electrically connected to the controller 23. During the test, the first detection sensor 6 detects the filter at the test position. When the filter reaches the detection position, the conveyor belt 2 can stop conveying and perform the detection work. The second detection sensor 61 detects the position of the faulty filter. When the faulty filter moves to the position of the unloading chute 33, the conveyor belt 2 can stop conveying and the faulty filter can be pushed out. In the above process, when the first detection sensor 6 detects the filter first, the filter is detected first. When the second detection sensor 61 detects the arrival of the faulty filter first, the faulty filter is unloaded first. Therefore, when loading the filter, it is not necessary to place the filters sequentially according to the setting of the limiting part 22. This allows for a variety of loading methods for filter detection with lower requirements. The loading method can be selected according to the actual situation, thereby reducing detection costs as needed. Example 3: Please see Figure 6 This embodiment provides a technical solution based on the above embodiments: the top of the testing table 1 is provided with a mounting groove 7, and the mounting groove 7 is provided with a feeding part 71, a guiding part 72, a conveying part 73 and a discharging part 74 in sequence along the conveying direction of the filter. The width of the feeding part 71 is greater than the width of the conveying part 73. The guiding part 72 is inclined and its width gradually decreases along the conveying direction of the filter. The width of the guiding part 72 is adapted to the filter. The conveyor belt 2 is set inside the mounting groove 7, and when the filter is placed on the conveyor belt 2, the position of the test joint is higher than the upper surface of the testing table 1, so that the testing process of the filter is not obstructed. During the feeding process, the guide 72 can be used to correct the position of the filter with positional deviation, thereby ensuring the accuracy of the filter's position during detection. Example 4: Please see Figure 7 This embodiment provides a technical solution based on the above embodiments: a substrate 8 is mounted on the surface of the limiting part 22, an adhesive part 81 is provided at one end of the bottom of the substrate 8, the substrate 8 is fixedly connected to the limiting part 22 through the adhesive part 81, an elastic band 82 is installed between the bottom side of the substrate 8 away from the adhesive part 81 and the adhesive part 81, and a plurality of rollers 83 are equidistantly arranged on the surface of the substrate 8 along the width direction of the conveyor belt 2, the central axis of the rollers 83 is parallel to the width direction of the conveyor belt 2. By setting the roller 83, the movement of the filter is smoother when performing position correction or unloading faulty filters, which is conducive to the stable progress of the inspection work. Example 5: This embodiment provides a filter performance testing method for filter manufacturing based on the above embodiments, using the aforementioned filter performance testing device for filter manufacturing, and includes the following steps: S1. The operator manually or via an external robotic arm places the filter in the limiting part 22 on the conveyor belt 2 and conveys it forward via the conveyor belt 2. S2. When the filter moves to the position of the auxiliary test unit, the vector network detector connector 32 is stably connected to the test connector on the filter through the auxiliary test unit, and the filter is tested and the test results are obtained. S3, conveyor belt 2 transports the tested filters to the faulty product unloading unit, and controls the faulty product unloading unit to push the faulty filters according to the test results, so that they are discharged from the side unloading chute 33, while qualified products are discharged from the end of the conveyor belt 2. The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A filter performance testing device for filter manufacturing, characterized in that, The device includes a testing platform (1), a conveyor belt (2) is provided on the testing platform (1), a number of baffles (21) are provided at intervals on the conveyor belt (2), a limiting part (22) is formed between adjacent baffles (21), a filter is placed in the limiting part (22), a test connector is provided at both ends of the filter, a connecting thread is provided on the outside of the test connector, and a controller (23) is provided on the side of the testing platform (1). The testing platform (1) is provided with a first mounting frame (3) and a second mounting frame (31) in sequence along the filter conveying direction. Vector network tester connectors (32) are symmetrically arranged on both sides of the testing platform (1) and located on both sides of the conveyor belt (2). An auxiliary testing unit is provided below the first mounting frame (3) to drive the vector network tester connector (32) to stably connect with the test connector on the filter. The top of the testing platform (1) is symmetrically provided with a feeding chute (33) located below the second mounting frame (31). A faulty product feeding unit corresponding to the feeding chute (33) is provided below the second mounting frame (31). The end of the testing platform (1) is provided with a feeding guide plate (34) corresponding to the conveyor belt (2).

2. The filter performance testing device for filter production according to claim 1, characterized in that, The auxiliary testing unit includes a bidirectional screw (4) installed on the top of the inner wall of the first mounting bracket (3). The two ends of the bidirectional screw (4) are symmetrically threaded with drive blocks (41). The drive blocks (41) are slidably connected to the top of the inner wall of the first mounting bracket (3). The bottom of the drive blocks (41) is equipped with a support bar (42). The bottom of the support bar (42) is provided with a T-slot (43). The inner side of the T-slot (43) is slidably connected with a connecting plate (44). An auxiliary spring (45) is fixedly connected between the inner wall of the T-slot (43) and the connecting plate (44). The bottom of the connecting plate (44) is equipped with a connecting rod (46). The end of the connecting rod (46) is rotatably connected with a ring seat (47). The end of the ring seat (47) is fixedly connected with a connecting sleeve (48). The connecting sleeve (48) is provided with a mating thread that is compatible with the connecting thread.

3. The filter performance testing device for filter production according to claim 2, characterized in that, The connecting sleeve (48) is sleeved on the outside of the vector network tester connector (32), and the connecting sleeve (48) is rotatably connected to the vector network tester connector (32). The position of the connecting sleeve (48) corresponds to the test connector.

4. The filter performance testing device for filter production according to claim 3, characterized in that, The connecting plate (44) is equipped with a mounting base (49) on its exterior. The end of the mounting base (49) is rotatably connected to a drive wheel (410), which is driven by a motor.

5. The filter performance testing device for filter production according to claim 4, characterized in that, The faulty product unloading unit includes a reciprocating screw (5) rotatably connected to the top of the inner wall of the second mounting frame (31). The reciprocating screw (5) is externally connected to a moving block (51). The moving block (51) is slidably connected to the top of the inner wall of the second mounting frame (31). A lever (52) is installed at the bottom of the moving block (51).

6. The filter performance testing device for filter production according to claim 5, characterized in that, A first detection sensor (6) is provided on the top of the inner wall of the first mounting bracket (3), and a second detection sensor (61) is provided on the top of the inner wall of the second mounting bracket (31). The conveyor belt (2), the bidirectional screw (4) and the reciprocating screw (5) are all driven by motors. The first detection sensor (6), the second detection sensor (61) and the motor are all electrically connected to the controller (23).

7. The filter performance testing device for filter production according to claim 6, characterized in that, The top of the testing platform (1) is provided with a mounting groove (7). The mounting groove (7) is provided with a feeding part (71), a guiding part (72), a conveying part (73) and a discharging part (74) in sequence along the conveying direction of the filter. The width of the feeding part (71) is greater than the width of the conveying part (73). The guiding part (72) is inclined and the width of the guiding part (72) gradually decreases along the conveying direction of the filter. The width of the guiding part (72) is adapted to the filter. The conveyor belt (2) is set inside the mounting groove (7). When the filter is placed on the conveyor belt (2), the position of the test connector is higher than the upper surface of the testing platform (1).

8. The filter performance testing device for filter production according to claim 7, characterized in that, A substrate (8) is mounted on the surface of the limiting part (22). An adhesive part (81) is provided at one end of the bottom of the substrate (8). The substrate (8) is fixedly connected to the limiting part (22) through the adhesive part (81). An elastic band (82) is installed between the bottom side of the substrate (8) away from the adhesive part (81) and the adhesive part (81). Several rollers (83) are equidistantly arranged on the surface of the substrate (8) along the width direction of the conveyor belt (2).

9. A method for testing the filtering performance of filters used in filter manufacturing, comprising a filtering performance testing device for filters used in filter manufacturing as described in any one of claims 1-8, characterized in that, Includes the following steps: S1. The operator manually or via an external robotic arm places the filter in the limiting part (22) on the conveyor belt (2) and conveys it forward via the conveyor belt (2); S2. When the filter moves to the position of the auxiliary test unit, the vector network detector connector (32) is stably connected to the test connector on the filter through the auxiliary test unit, and the filter is tested and the test results are obtained. S3. The conveyor belt (2) transports the tested filters to the faulty product unloading unit and controls the faulty product unloading unit to push the faulty filters according to the test results, so that they are discharged from the side unloading chute (33), while qualified products are discharged from the end of the conveyor belt (2).

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