Bottle cap airtightness detector

Abstract

The utility model discloses a bottle cap air tightness detector, which relates to the technical field of bottle cap detection and comprises a bottle cap placing table, a cooperative manipulator, a bottle cap detection station, an air tightness detector and a machine body, and the bottle cap placing table, the cooperative manipulator, the bottle cap detection station and the air tightness detector are all mounted on the machine body. Wherein the bottle cap placing table is used for placing a to-be-detected bottle cap; a bottle cap clamping assembly is mounted on the cooperative manipulator, and a plurality of clamping stations are arranged on the bottle cap clamping assembly; the bottle cap detection station is provided with a plurality of ventilation pipes, the plurality of ventilation pipes are in one-to-one correspondence with the plurality of clamping stations, and the plurality of ventilation pipes are further provided with bearing tables for bearing bottle caps; and the inlet ends of the plurality of ventilation pipes are jointly connected in parallel to the outlet end of an air tightness detector. According to the utility model, sealing performance detection can be simultaneously carried out on a plurality of wine bottle caps, the detection process is simple, and the detection efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of bottle cap testing technology, and more specifically, to a bottle cap airtightness tester. Background Technology

[0002] Bottle caps are important components used to seal the mouth of wine bottles. Their material, design, and sealing performance are crucial for maintaining the quality of the wine and extending its shelf life. In addition, some bottle caps also have functions such as anti-theft and security. Therefore, bottle caps are key products in wine bottle packaging.

[0003] Currently, bottle caps undergo a series of tests after production, with airtightness testing being a crucial step, as the quality of airtightness directly affects the shelf life of the food. However, the current testing of bottle caps involves manual inspection, placing each cap one by one at a testing station before moving on to the next. This process is not only cumbersome but also inefficient. Utility Model Content

[0004] The purpose of this invention is to provide a bottle cap airtightness tester that can simultaneously test the airtightness of multiple bottle caps. The test process is simple and the test efficiency is high.

[0005] To achieve the purpose of this utility model, the technical solution adopted is: a bottle cap airtightness tester, comprising:

[0006] A bottle cap placement platform, wherein the bottle cap placement platform is equipped with a device for placing bottle caps to be tested;

[0007] A collaborative robotic arm, wherein a bottle cap gripping assembly is mounted on the collaborative robotic arm, and the bottle cap gripping assembly has multiple gripping stations;

[0008] The bottle cap inspection station has multiple air vents, each corresponding to a clamping station, and each air vent is also equipped with a support platform for holding the bottle cap.

[0009] An airtightness detector, wherein the inlet ends of multiple ventilation tubes are connected in parallel to the outlet end of the airtightness detector;

[0010] The bottle cap placement platform, collaborative robot, bottle cap inspection station, and airtightness detector are all mounted on the machine body.

[0011] Furthermore, it also includes a camera for detecting the placement of bottle caps on the bottle cap placement platform, which is mounted on the machine body via a mounting bracket.

[0012] Furthermore, the machine body is box-shaped, and a discharge guide trough extending to the outside is installed inside the machine body, with the bottom of the discharge guide trough gradually sloping downwards towards the outside of the machine body.

[0013] Furthermore, the bottle cap clamping assembly includes an upper limit mounting base plate installed at the output end of the collaborative robot arm. A linear slider bracket is mounted on the upper limit mounting base plate, and two relatively movable clamping plate brackets are mounted on the linear slider brackets. Upper clamping plates are installed on the inner sides of the two clamping plate brackets, and multiple arc-shaped grooves are opened on the two upper clamping plates. Two corresponding arc-shaped grooves on the two upper clamping plates form a clamping station.

[0014] Furthermore, a lower clamping plate is also fitted onto the upper clamping plate, and a clamping groove corresponding to the arc-shaped groove is formed on the lower clamping plate, the radius of which is smaller than the radius of the arc-shaped groove.

[0015] Furthermore, at least one linear guide rail is mounted on the linear slider bracket, and sliders that slide in cooperation with the linear guide rails are mounted on both clamp brackets.

[0016] Furthermore, anti-collision blocks for limiting the movement of the linear slider are installed at both ends of the linear slider bracket.

[0017] Furthermore, the linear slider bracket is also equipped with a mounting plate, and a drive assembly for driving the slider to slide along the linear guide rail is also mounted on the mounting plate.

[0018] Furthermore, the drive assembly includes a servo motor and a synchronous pulley mounted on the mounting plate. A synchronous idler pulley is mounted on the output end of the servo motor, and a synchronous belt is wound around the synchronous idler pulley and the synchronous pulley. The conveying surface and the return surface of the synchronous belt are respectively connected to two clamping brackets.

[0019] Furthermore, pressure plates are also installed on the two clamping plate supports, and the pressure plates mesh with the timing belt through teeth.

[0020] Furthermore, an upper limit plate is provided on the side of the upper limit mounting base away from the collaborative robot arm. The upper limit plate corresponds to the two upper clamping plates, and a manual drive component for driving the upper limit plate to move closer or further away is also installed on the upper limit mounting base.

[0021] Furthermore, a bushing is also installed on the upper limit mounting base plate, and a guide shaft that penetrates the bushing is installed on the upper limit mounting plate.

[0022] Furthermore, the manual drive assembly includes an adjusting screw connected to the upper limit plate, and an adjusting nut that cooperates with the adjusting screw is installed on the upper limit mounting base plate. The adjusting screw passes through the adjusting nut and is equipped with a handle.

[0023] Furthermore, the bottle cap placement platform includes a support base A, and the upper surface of the support base A is marked with multiple bottle cap placement stations.

[0024] Furthermore, the bottle cap inspection station also includes a support base B, on which multiple vent pipes are installed.

[0025] Furthermore, multiple sliding sleeves are fixed on the support base B, and each sliding sleeve is equipped with a guide rod that can slide up and down. The support platform is fixed on the upper end of the guide rod, and the vent pipe is connected to the guide rod. A spring is also sleeved on the guide rod, and the two ends of the spring are respectively pressed against the support platform and the support base B.

[0026] Furthermore, the lower end of the guide rod also has a limiting ring with a diameter larger than the inner diameter of the sliding sleeve.

[0027] Furthermore, an air intake pipe is also connected to the lower end of the guide rod.

[0028] Furthermore, the outlet end of the vent pipe is conical.

[0029] Furthermore, the outlet end of the vent pipe is also fitted with a rubber sleeve.

[0030] Furthermore, the outlet end of the vent pipe also has an annular groove, and one end of the rubber sleeve is fastened to the wall of the annular groove.

[0031] The beneficial effects of this utility model are:

[0032] When the airtightness of bottle caps needs to be tested, this invention only requires a manual placement of multiple bottle caps on a bottle cap placement platform. Then, a robotic arm drives a bottle cap clamping assembly to clamp multiple bottle caps simultaneously and insert them into multiple air vents at the bottle cap testing station. Air is blown into the bottle caps through the multiple air vents, and pressure is maintained after blowing. During the pressure holding phase, the air pressure change is observed, thereby completing the airtightness test of the bottle caps. The entire testing process is simple and efficient. Attached Figure Description

[0033] The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification.

[0034] Figure 1 This is a front view of the bottle cap airtightness tester provided by this utility model;

[0035] Figure 2 yes Figure 1 Sectional view of AA;

[0036] Figure 3 This is a side view of the bottle cap airtightness tester provided by this utility model;

[0037] Figure 4 This is an isometric side view of the bottle cap airtightness tester provided by this utility model;

[0038] Figure 5This is the front view of the bottle cap clamping component;

[0039] Figure 6 This is a side view of the bottle cap clamping assembly;

[0040] Figure 7 This is a top view of the bottle cap clamping assembly;

[0041] Figure 8 yes Figure 7 Sectional view of BB;

[0042] Figure 9 This is an isometric side view of the bottle cap clamping assembly;

[0043] Figure 10 This is a top view of the bottle cap placement platform and the bottle cap inspection station;

[0044] Figure 11 This is an isometric side view of the bottle cap placement platform and the bottle cap inspection station;

[0045] Figure 12 This is a side view of the bottle cap placement platform and the bottle cap inspection station;

[0046] Figure 13 This is a cross-sectional view of the bottle cap inspection station;

[0047] Figure 14 This is a structural diagram of the mounting bracket.

[0048] The attached diagram shows the markings and corresponding component names:

[0049] 1. Machine body, 2. Bottle cap placement platform, 3. Collaborative robot arm, 4. Bottle cap clamping assembly, 5. Bottle cap inspection station, 6. Air tightness detector, 7. Mounting bracket, 8. Discharge guide chute, 9. Emergency stop button, 10. Start button, 11. Stop button, 12. Electrical control cabinet assembly, 13. Camera, 14. Touch screen.

[0050] 201. Support A; 202. Bottle cap placement station;

[0051] 401. Linear slider bracket; 402. Slider connector; 404. Mounting plate; 406. Anti-collision block; 407. Synchronous idler wheel; 408. Clamping plate bracket; 409. Upper clamping plate; 410. Lower clamping plate; 411. Upper limit mounting base plate; 412. Upper limit plate; 413. Pressure plate; 414. Guide shaft; 416. Adjusting screw; 417. Adjusting nut; 418. Bushing; 419. Linear guide rail; 420. Slider; 421. Synchronous wheel; 422. Servo motor; 423. Synchronous belt; 424. Handle; 425. Arc groove; 426. Clamping groove.

[0052] 501, Support seat B; 502, Sliding sleeve; 503, Guide rod; 504, Bearing platform; 505, Limiting ring; 506, Spring; 507, Vent pipe; 508, Rubber sleeve; 509, Ring groove; 510, Air inlet pipe.

[0053] 701. Flange seat; 702. Support rod one; 703. Clamping block one; 704. Support rod two; 705. Clamping block two; 706. Fixing plate. Detailed Implementation

[0054] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present invention are shown in the accompanying drawings.

[0055] It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0056] like Figures 1 to 14 As shown, the present invention provides a bottle cap airtightness tester, comprising a body 1, which is box-shaped, and further comprising a bottle cap placement platform 2, a cooperating robot 3, a bottle cap clamping assembly 4, a bottle cap testing station 5, a camera 13, and an airtightness detector 6. The bottle cap clamping assembly 4 is mounted on the cooperating robot 3 and is used to clamp the bottle cap to be tested and the bottle cap that has been tested, and to cooperate with the cooperating robot 3 to transfer the clamped bottle cap. The bottle cap testing station 5 is used to perform airtightness testing on the bottle cap to be tested. The bottle cap placement platform 2 is used to place the bottle cap to be tested, facilitating the cooperating robot 3 to drive the bottle cap clamping assembly 4 to clamp the bottle cap to be tested. The camera 13 is used to collect data on the placement of the bottle caps on the bottle cap placement platform 2. The airtightness detector 6 is used to provide testing gas to the bottle cap testing station 5 and to detect the pressure change during the pressure holding stage after the bottle cap is inflated.

[0057] Since the bottle cap placement platform 2 is located inside the machine body 1, an opening corresponding to the bottle cap placement platform 2 is made on the machine body 1 to facilitate placing the bottle caps to be tested on the platform 2. Simultaneously, to facilitate control of the detector's start and stop, such as... Figure 1 , Figure 2As shown, the machine body 1 is also equipped with an electrical control cabinet assembly 12, and the machine body 1 is also equipped with an emergency stop button 9, a start button 10, a stop button 11, a touch screen 14, the output terminals of the emergency stop button 9, the start button 10, the stop button 11, the camera 13, and the airtightness detector 6 are all connected to the input terminals of the control module in the electrical control cabinet assembly 12, and the touch screen 14 is bidirectionally connected to the control module in the electrical control cabinet assembly 12.

[0058] In this embodiment, such as Figures 5 to 9 As shown, the bottle cap clamping assembly 4 includes an upper limit mounting base plate 411 fixedly mounted on the output end of the collaborative robot 3. A linear slider bracket 401 is fixed on the side of the upper limit mounting base plate 411 away from the collaborative robot 3. The linear slider bracket 401 is perpendicular to the upper limit mounting base plate 411, and the length direction of the linear slider bracket 401 is consistent with the width direction of the upper limit mounting base plate 411. Two clamping brackets 408 are also installed on one side of the linear slider bracket 401. The two clamping brackets 408 can reciprocate along the length of the linear slider bracket 401, and the two clamping brackets 408 move in opposite directions, so that the two clamping brackets 408 move closer or further away from each other, causing the distance between the two clamping brackets 408 to change. At the same time, upper clamping plates 409 are installed on the inner side of the two clamping brackets 408. The upper clamping plates 409 are arranged horizontally. The opposite sides of the two upper clamping plates 409 are provided with arc-shaped grooves 425 evenly spaced along their axial direction, and the arc-shaped grooves 425 on the two upper clamping plates 409 correspond one to one. A clamping station is formed between the two corresponding arc-shaped grooves 425 on the two upper clamping plates 409. When it is necessary to clamp the bottle cap, the bottle cap is located in the clamping station. When the two upper clamping plates 409 come together, the two corresponding arc-shaped grooves 425 on the two upper clamping plates 409 form a circular or similar circular clamping opening, and the bottle cap to be tested or after testing is clamped in the clamping opening, thereby achieving the clamping of the bottle cap.

[0059] To prevent damage to the bottle cap during clamping, a lower clamping plate 410 is also fitted onto the upper clamping plate 409. The lower clamping plate 410 is made of rubber and has multiple clamping grooves 426. These grooves correspond one-to-one with the arc-shaped grooves 425 on the upper clamping plate 409, with the radius of the clamping grooves 426 being smaller than the radius of the arc-shaped grooves 425. When the bottle cap is clamped, it does not directly contact the arc-shaped grooves 425 on the upper clamping plate 409. Instead, the clamping grooves 426 on the lower clamping plate 410 clamp the bottle cap. During this clamping process, the clamping grooves 426 are compressed, effectively tightening the bottle cap and preventing it from being scratched by the upper clamping plate 409.

[0060] In this embodiment, the lower clamping plate 410 can be fixedly attached to either the upper surface of the upper clamping plate 409 or the lower surface of the upper clamping plate 409. The lower clamping plate 410 can be arranged arbitrarily, provided that the bottle cap is not scratched by the upper clamping plate 409 when clamped. Alternatively, in this embodiment, the lower clamping plate 410 can be omitted, and a rubber layer can be directly attached to the wall of the arc-shaped groove 425. In this embodiment, to prevent the bottle cap from slipping during clamping, anti-slip textures can also be provided on the wall of the clamping groove 426.

[0061] To ensure the relative movement of the two clamping plate supports 408, two linear guide rails 419 extending along their axial direction are also installed on the side of the linear slider support 401 near the clamping plate supports 408. The two linear guide rails 419 are arranged at intervals along the height direction of the linear slider support 401. Each clamping plate support 408 is equipped with a slider 420 that slides and engages with the two linear guide rails 419. Through the engagement of the slider 420 with the linear guide rails 419, the two clamping plate supports 408 can move on the linear slider support 401 when subjected to external force. However, to prevent the slider 420 from moving out of the two ends of the linear guide rails 419 during its movement along the linear guide rails 419, two anti-collision blocks 406 can also be installed at both ends of the linear slider support 401. One anti-collision block 406 is in contact with the end face of one end of the two linear guide rails 419, and the other anti-collision block 406 is in contact with the end face of the other end of the two linear guide rails 419.

[0062] In this embodiment, in order to facilitate the simultaneous connection of the clamping plate bracket 408 with the two sliders 420, slider connectors 402 can be installed on the side of the two clamping plate brackets 408 near the linear slider bracket 401, and the two sliders 420 located at the same end of the two linear guide rails 419 can be fixed on a slider 420 connector. At this time, the two anti-collision blocks 406 can also cooperate with the two slider connectors 402 respectively to achieve limiting. This method can also prevent the sliders 420 from moving out of both ends of the linear guide rails 419 during the movement.

[0063] To facilitate the movement of the two clamping brackets 408 closer to or further apart, a mounting plate 404 is installed on the side of the linear slider bracket 401 away from the clamping brackets 408. A drive assembly for driving the slider 420 to slide along the linear guide rail 419 is also mounted on the mounting plate 404. This drive assembly includes a servo motor 422 fixedly mounted on the mounting plate 404 and a synchronous wheel 421 rotatably mounted on the mounting plate 404. The synchronous wheel 421 is located on the side of the mounting plate 404 closer to the linear slider bracket 401. The output shaft of the servo motor 422 extends through the mounting plate 404 toward the linear slider bracket 401. A synchronous idler wheel 407 is also mounted at the output end of the servo motor 422. A synchronous belt 423 is wound around both the synchronous idler wheel 407 and the synchronous wheel 421. The conveying direction of the synchronous belt 423 is consistent with the axial direction of the linear guide rail 419. The conveying surface and return surface of the synchronous belt 423 are respectively connected to the two clamping brackets 408. When both clamping brackets 408 are equipped with slider connectors 402, the conveying surface and the return surface of the timing belt 423 can also be connected to the two slider connectors 402 respectively.

[0064] To facilitate the connection of the conveying surface and return surface of the synchronous belt 423 to the two slider connectors 402 respectively, a pressure plate 413 extending towards the synchronous belt 423 can be installed on each of the two slider 420 connecting frames. One pressure plate 413 extends below the conveying surface of the synchronous belt 423, and the other pressure plate 413 extends above the return surface of the synchronous belt 423. Teeth that mesh with the synchronous belt 423 are provided on the pressure plate 413, so that the teeth on the pressure plate 413 mesh with the teeth on the synchronous belt 423. As the synchronous belt 423 rotates, it drives the two slider connectors 402 to move through the two pressure plates 413. This causes the sliders 420 on the slider connectors 402 to move along the linear guide rail 419, and drives the clamping plate bracket 408, the upper clamping plate 409, and the lower clamping plate 410 to move synchronously, thereby achieving the clamping of the bottle cap. When the slider connector 402 is not installed on the clamping bracket 408, the two pressure plates 413 can also be directly fixed on the two clamping brackets 408 respectively. In this case, the relative movement of the two clamping brackets 408 can also be achieved to clamp the bottle cap.

[0065] To prevent the bottle cap from jumping above the lower clamping plate 410 and / or the upper clamping plate 409 during the clamping process, thus making it impossible to effectively clamp the bottle cap, an upper limit plate 412 is provided on the side of the upper limit mounting base plate 411 away from the cooperating robot 3. There is a certain distance between the upper limit plate 412 and the upper limit mounting base plate 411, and the width of the upper limit plate 412 is greater than the diameter of the bottle cap. The upper limit plate 412 is located between the two upper clamping plates 409, that is, the upper limit plate 412 is located above the clamping station. When the two lower clamping plates 410 are clamping the bottle cap, the upper limit plate 412 is pressed against the bottle cap to be clamped, so that the bottle cap to be clamped cannot move upward, thereby enabling the two lower clamping plates 410 to accurately clamp the bottle cap.

[0066] In this embodiment, although the two lower clamping plates 410 can only clamp one size of bottle cap at a time, they can clamp bottle caps of different diameters according to production needs. Therefore, in order to ensure that the upper limit plate 412 can be pressed firmly on the bottle cap when clamping bottle caps of different diameters, a manual drive assembly is installed on the upper limit mounting base plate 411. The manual drive assembly can adjust the upper limit plate 412 to move closer to or further away from the upper limit mounting base plate 411 as needed. That is, the manual drive assembly can adjust the height of the upper limit plate 412 to meet the clamping of bottle caps of different sizes.

[0067] To prevent the upper limit plate 412 from rotating as it approaches or moves away from the upper limit mounting base plate 411, guide shafts 414 are installed at both ends of the upper limit plate 412. The two guide shafts 414 are arranged symmetrically with the manual drive assembly as the center. At the same time, bushings 418 that slide with the two guide shafts 414 are also installed on the upper limit mounting base plate 411. The extended ends of the guide shafts 414 extend upward through the bushings 418.

[0068] To facilitate the manual drive assembly for moving the upper limit plate 412 closer to or further away from the upper limit mounting base plate 411, the manual drive assembly includes an adjusting nut 417 mounted on the upper limit mounting base plate 411. An adjusting screw 416 with a threaded engagement is installed within the adjusting nut 417. The end of the adjusting screw 416 closest to the upper limit plate 412 has an annular groove 509, and the upper limit plate 412 also has an open groove that matches the diameter of the bottom of the annular groove. The corresponding portion of the annular groove on the adjusting screw 416 is engaged within the open groove, thus connecting the adjusting screw 416 to the upper limit plate 412 while simultaneously enabling a rotatable connection between them. To facilitate rotation of the adjusting screw 416, a handle 424 is also installed at the end of the adjusting screw 416 furthest from the upper limit plate 412, allowing the operator to rotate the adjusting screw 416 by turning the handle 424.

[0069] In this embodiment, to facilitate the simultaneous clamping of multiple bottle caps to be inspected by the bottle cap clamping assembly 4, the bottle cap placement platform 2 includes a support base A201 mounted on the bottom surface of the machine body 1. The support base A201 includes four rectangular sealing plates, which are perpendicular to the bottom surface of the machine body 1, and a top plate is mounted on all four sealing plates. The support base A201 is elongated, and its width is greater than the diameter of the bottle cap. The top plate of the support base A201 is marked with multiple bottle cap placement stations 202 for placing bottle caps. The distance between two adjacent bottle cap placement stations 202 is the same as the distance between two adjacent clamping slots 426 on the lower clamping plate 410, so that after the bottle cap to be clamped is placed on the support base A201, the bottle cap clamping assembly 4 can smoothly clamp the bottle cap.

[0070] Meanwhile, the bottle cap inspection station 5 is located inside the bottle cap placement platform 2, which not only makes it convenient for staff to place the bottle caps to be inspected on the bottle cap placement platform 2, but also makes it convenient for the bottle cap clamping component 4 to quickly transfer the bottle caps to be inspected to the bottle cap inspection station 5 after clamping them.

[0071] like Figures 10 to 13 As shown, the bottle cap inspection station 5 also includes a support base B501. The support base B501 has the same structure as the support base A201, and the length of the support base B501 corresponds to the length of the support base A201. At the same time, multiple vent pipes 507 are also installed on the support base B501. The arrangement of the multiple vent pipes 507 is the same as the arrangement of the multiple bottle cap placement stations 202 on the support base A201. After the bottle caps on the bottle cap placement station 202 are clamped by the bottle cap clamping assembly 4, the bottle cap clamping assembly 4 can accurately insert the clamped bottle caps into the vent pipes 507, so that the clamped bottle caps and vent pipes 507 can be quickly connected.

[0072] To prevent damage to the bottle cap when the vent tube 507 is inserted into the bottle cap to be tested, multiple sliding sleeves 502 are fixed on the support base B501. The arrangement of the multiple sliding sleeves 502 on the support base B501 is the same as the arrangement of the multiple bottle cap placement stations 202 on the support base A201. Each of the multiple sliding sleeves 502 is equipped with a guide rod 503 that can slide up and down. The guide rod 503 has a hollow structure, and the lower end of the guide rod 503 extends into the interior of the support base B501. The upper end of the guide rod 503 has a support platform 504. When the bottle cap is inserted into the vent pipe 507, the opening edge of the bottle cap abuts against the support platform 504, thereby supporting the bottle cap. This prevents damage to the bottle cap caused by the tilting of the vent pipe 507 and the bottle cap, and also disperses the force on the bottle cap when the vent pipe 507 and the bottle cap are inserted, further preventing damage to the inside of the bottle cap. At the same time, the lower end of the guide rod 503 has a limiting ring 505. The diameter of 05 is larger than the inner diameter of the sliding sleeve 502, so that the guide rod 503 will not move out of the sliding sleeve 502 when it moves upward; the support platform 504, the limiting ring 505 and the guide rod 503 are integrated into one structure. The vent pipe 507 is inserted into the support platform 504 and communicates with the inside of the guide rod 503. A spring 506 is also sleeved on the guide rod 503. One end of the spring 506 is pressed against the support platform 504, and the other end of the spring 506 is pressed against the top plate in the support seat B501.

[0073] When the bottle cap to be tested is inserted into the vent tube 507, the vent tube 507 moves downward under the pushing force of the bottle cap, and pushes the guide rod 503 downward. The spring 506 is compressed to prevent damage due to excessive force when the bottle cap is inserted. At the same time, when the bottle cap is removed from the vent tube 507 after the test is completed, the robot arm drives the bottle cap clamping assembly 4 to move upward, so that the clamped bottle cap is pulled out from the vent tube 507. At this time, the spring 506 pushes the guide rod 503, the support platform 504, the limit ring 505, and the vent tube 507 to move upward synchronously to achieve reset.

[0074] To facilitate the delivery of detection gas into the guide rod 503, an air inlet pipe 510 is connected to the lower end of the guide rod 503. The inlet ends of the multiple air inlet pipes 510 are connected to the outlet end of the airtightness detector 6, and the inlet end of the airtightness detector 6 is connected to the gas source through a pipe.

[0075] To facilitate the insertion of the vent tube 507 into the bottle cap, the outlet end of the vent tube 507 can be made into a conical shape, with the minor diameter of the outlet end of the vent tube 507 being smaller than the inner diameter of the bottle cap, and the major diameter of the outlet end of the vent tube 507 being larger than the inner diameter of the bottle cap. After the outlet end of the vent tube 507 is inserted into the inner hole of the bottle cap, the outlet end of the vent tube 507 can seal the inner hole of the bottle cap and inject detection gas into the inner hole of the bottle cap, thereby detecting the sealing performance of the bottle cap.

[0076] To prevent damage to the vent tube 507 when it is inserted into the inner hole of the bottle cap, a rubber sleeve 508 is provided at the outlet end of the vent tube 507. When the vent tube 507 is inserted into the inner hole of the bottle cap, the rubber sleeve 508 contacts the inner hole wall of the bottle cap. When the force of inserting the bottle cap into the vent tube 507 is too great, the rubber sleeve 508 is squeezed and deformed, thereby preventing the inner hole of the bottle cap from being squeezed and deformed, and preventing the bottle cap from being damaged.

[0077] To prevent the rubber sleeve 508 from falling off the outlet end of the vent pipe 507, an annular groove 509 can be opened at the outlet end of the vent pipe 507. During installation, the end of the rubber sleeve 508 closest to the support platform 504 is fastened to the groove wall of the annular groove 509, thereby preventing the rubber sleeve 508 from falling off the vent pipe 507 when the bottle cap is removed from the vent pipe 507, making the installation of the rubber sleeve 508 more stable.

[0078] In this embodiment, to ensure the bottle cap clamping assembly 4 can accurately clamp multiple bottle caps simultaneously, a camera 13 is also installed on the machine body 1. The camera 13 is used to collect data on the placement of bottle caps on the bottle cap placement platform 2, thereby ensuring the accuracy of the bottle cap placement on the platform 2 and whether any bottle caps are missing. To facilitate the installation of the camera 13, a mounting bracket 7 is also installed on the machine body 1, such as... Figure 14 As shown, the mounting bracket 7 includes a support rod 702 mounted on the body 1 via a flange seat 701. A clamping block 703 is mounted on the extended end of the support rod 702. A support rod 704 is mounted on the clamping block 703. A clamping block 705 is mounted on the extended end of the support rod 704. A fixing plate 706 is mounted on the clamping block 705. The camera 13 is fixedly mounted on the fixing plate 706. The horizontal and vertical rotation can be adjusted by rotating the support rod 702 and the support rod 704, which facilitates adjusting the lens of the camera 13 to be aligned with the bottle cap placement platform 2.

[0079] To facilitate the delivery of the bottle cap that has completed the airtightness test out of the machine body 1, such as Figure 1 , Figure 2 , Figure 3 As shown, a discharge guide trough 8 is also installed inside the machine body 1. The upper end and the end of the discharge guide trough 8 extending outside the machine body 1 are open, while the end of the discharge guide trough 8 inside the machine body 1 is closed. The end of the discharge guide trough 8 extending outside the machine body 1 can be flush with the outer surface of the machine body 1 or can extend outward beyond the outer surface of the machine body 1. In order to ensure that the bottle caps falling into the discharge guide trough 8 can be directly sent out of the machine body 1, the bottom of the discharge guide trough 8 can be designed to be inclined. Specifically, the end of the bottom of the discharge guide trough 8 closer to the inside of the machine body 1 is the high end, and the end of the bottom of the discharge guide trough 8 outside the machine body 1 is the low end, so that after the detected bottle caps fall into the discharge guide trough 8, they can be moved out of the machine body 1 by their own weight along the bottom of the discharge guide trough 8.

[0080] In this embodiment, the airtightness detector 6 can simultaneously correspond to multiple vent pipes 507 of the bottle cap detection station 5, or the multiple vent pipes 507 on the bottle cap detection station 5 can be divided into two groups. In this case, there can also be two airtightness detectors 6, with one airtightness detector 6 corresponding to multiple vent pipes 507 in the same group. The airtightness detector 6 is connected to the air inlet pipe 510 connected to the vent pipes 507 in the same group.

[0081] In use, press the start button 10. The start button 10 transmits a start signal to the control module in the electrical control cabinet assembly 12. The control module controls the camera 13, the robotic arm, the servo motor 422, and the airtightness detector 6 to start. Then, the operator places the bottle cap to be tested on the bottle cap placement station 202 of the bottle cap placement platform 2. The output shaft of the servo motor 422 reverses. At the same time, the servo motor 422 drives the synchronous idler wheel 407 to reverse synchronously. At the same time, the synchronous idler wheel 407 drives the synchronous belt 423 and the synchronous pulley 421 to reverse synchronously. The pressure plate 413 engages with the timing belt 423. As the timing belt 423 reverses, it drives the two clamping brackets 408 to move away from each other. During this process, the two clamping brackets 408 and the timing belt 423 move the two slider connectors 402 to move away from each other. The two slider connectors 402 drive the two sliders 420 to slide along the linear guide rail 419 and move away from each other. The two slider connectors 402 drive the two clamping brackets 408 to move away from each other, so that the upper clamping plate 409 and the lower clamping plate 410 on the two clamping brackets 408 move away from each other, and the clamping station opens.

[0082] The collaborative robot arm 3 moves the bottle cap clamping assembly 4 above the bottle cap placement platform 2, positioning the bottle caps placed on the platform between the two upper clamping plates 409 and the two lower clamping plates 410. The clamping position coincides with the bottle cap placement position 202, and the bottle caps correspond to the clamping slots 426 on the lower clamping plates 410. Next, the output shaft of the servo motor 422 rotates forward. Simultaneously, the servo motor 422 reverses, driving the synchronous idler pulley 407 to rotate forward synchronously. The synchronous idler pulley 407, in turn, drives the synchronous belt 423 and the synchronous pulley 421 to rotate forward synchronously. The synchronous belt 423, while rotating forward, simultaneously drives... The two clamping brackets 408 move closer to each other. During this process, the two clamping brackets 408 synchronously drive the two slider connectors 402 to move closer to each other. The two slider connectors 402 drive the two sliders 420 to slide along the linear guide rail 419 and move closer to each other. The two slider connectors 402 drive the two clamping brackets 408 to move closer to each other, so that the upper clamping plate 409 and the lower clamping plate 410 on the two clamping brackets 408 move closer to each other, so that the clamping station gradually closes. The bottle cap is clamped between the two lower clamping plates 410 and the bottle cap is located in the corresponding two clamping slots 426.

[0083] The collaborative robot arm 3 moves, simultaneously driving the gripped bottle caps to move synchronously, aligning multiple gripped bottle caps with multiple vent pipes 507 one by one, and inserting the gripped bottle caps one by one onto the vent pipes 507. During this process, the bottle caps push the vent pipes 507, guide rods 503, support platforms 504, and air inlet pipes 510 downwards, gradually compressing the springs 506. The opening edge of the bottle cap abuts against the support platform 504, and the rubber sleeve 508 on the vent pipe 507 aligns with the inner hole of the bottle cap. The wall is pressed tightly; then, the two airtightness detectors 6 respectively send air into each air inlet pipe 510. The detection air entering the air inlet pipe 510 enters the inner hole of the bottle cap through the guide rod 503 and the vent pipe 507. When the air pressure in the air inlet pipe 510, guide rod 503, vent pipe 507 and the inner hole of the bottle cap reaches a certain pressure, the airtightness detector 6 stops sending detection air, and the air inlet pipe 510, guide rod 503, vent pipe 507 and the inner hole of the bottle cap maintain pressure. The airtightness detector 6 determines the sealing performance of the bottle cap based on the pressure change.

[0084] After the bottle caps are inspected, the collaborative robot arm 3 moves while simultaneously moving the clamped bottle caps, causing multiple clamped bottle caps to be removed one by one from multiple vent pipes 507. During this process, as the bottle caps move upward, the spring 506 pushes the support platform 504, vent pipe 507, guide rod 503 and air inlet pipe 510 upward through its own elasticity, causing the vent pipe 507 to reset. Then, the collaborative robot arm 3 moves while simultaneously moving the clamped bottle caps to the top of the discharge guide 8, and causes the two lower clamping plates 410 to abut or approach the sides of the discharge guide 8 respectively.

[0085] Finally, the output shaft of the servo motor 422 reverses. While the servo motor 422 reverses, it drives the synchronous idler wheel 407 to reverse synchronously. While the synchronous idler wheel 407 reverses, it drives the synchronous belt 423 and the synchronous pulley 421 to reverse synchronously. While the synchronous belt 423 reverses, it drives the two clamping plate supports 408 to move away from each other. During this process, the two clamping plate supports 408 and the synchronous belt 423 drive the two slider connectors 402 to move away synchronously. The two slider connectors 402 drive the two sliders 420 to slide along the linear guide rail 419 and move away from each other. The two slider connectors 402 drive the two clamping plate supports 408 to move away from each other, so that the upper clamping plate 409 and the lower clamping plate 410 on the two clamping plate supports 408 move away from each other, so that the clamping station opens and the bottle cap automatically falls into the discharge guide 8 and slides through the discharge guide 8 to the next process.

[0086] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0087] Those skilled in the art should understand that the above embodiments are merely for clearly illustrating the present invention and are not intended to limit the scope of the present invention. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present invention.

Claims

1. A bottle cap airtightness detector, characterized in that, include: Bottle cap placement platform (2), wherein the bottle cap placement platform (2) is equipped with a device for placing bottle caps to be tested; A collaborative robot (3) is equipped with a bottle cap clamping assembly (4), which has multiple clamping stations. Bottle cap inspection station (5) has multiple air pipes (507), each of which corresponds to a clamping station, and each of the multiple air pipes (507) is also provided with a support platform (504) for carrying bottle caps. An airtightness detector (6) is constructed by connecting the inlet ends of multiple ventilation tubes in parallel at the outlet end of the airtightness detector (6). The body (1), the bottle cap placement platform (2), the collaborative robot (3), the bottle cap detection station (5), and the airtightness detector (6) are all installed on the body (1).

2. The bottle cap airtightness detector according to claim 1, characterized in that, It also includes a camera (13) for detecting the placement of bottle caps on the bottle cap placement platform (2), and is mounted on the machine body (1) by a mounting bracket (7); the machine body (1) is box-shaped, and a discharge guide trough (8) extending to the outside is also installed inside the machine body (1), and the bottom of the discharge guide trough (8) gradually slopes downward toward the outside of the machine body (1).

3. The bottle cap airtightness tester according to claim 1, characterized in that, The bottle cap clamping assembly (4) includes an upper limit mounting base plate (411) installed at the output end of the collaborative robot (3). A linear slider bracket (401) is installed on the upper limit mounting base plate (411). Two relatively movable clamping plate brackets (408) are installed on the linear slider bracket (401). An upper clamping plate (409) is installed on the inner side of each of the two clamping plate brackets (408). Multiple arc grooves (425) are opened on the two upper clamping plates (409). Two corresponding arc grooves (425) on the two upper clamping plates (409) form a clamping station. A lower clamping plate (410) is also fitted on the upper clamping plate (409). A clamping groove (426) corresponding to the arc groove (425) is opened on the lower clamping plate (410). The radius of the clamping groove (426) is smaller than the radius of the arc groove (425).

4. The bottle cap airtightness tester according to claim 3, characterized in that, At least one linear guide rail (419) is installed on the linear slider bracket (401), and sliders (420) that slide in cooperation with the linear guide rail (419) are installed on both clamp brackets (408); anti-collision blocks (406) that limit the slider (420) are installed at both ends of the linear slider bracket (401).

5. The bottle cap airtightness tester according to claim 3, characterized in that, The linear slider bracket (401) is also equipped with a mounting plate (404), and the mounting plate (404) is also equipped with a drive assembly for driving the slider (420) to slide along the linear guide rail (419); the drive assembly includes a servo motor (422) and a synchronous pulley (421) mounted on the mounting plate (404), the output end of the servo motor (422) is equipped with a synchronous idler pulley (407), and a synchronous belt (423) is wound on the synchronous idler pulley (407) and the synchronous pulley (421). The conveying surface and the return surface of the synchronous belt (423) are respectively connected to two clamp brackets (408); the two clamp brackets (408) are also equipped with pressure plates (413), and the pressure plates (413) and the synchronous belt (423) are engaged by teeth.

6. The bottle cap airtightness tester according to claim 3, characterized in that, The upper limit mounting base plate (411) is also provided with an upper limit plate (412) on the side away from the cooperating robot (3). The upper limit plate (412) corresponds to the two upper clamping plates (409), and a manual drive component for driving the upper limit plate (412) to move closer or further away is also installed on the upper limit mounting base plate (411).

7. The bottle cap airtightness tester according to claim 6, characterized in that, The upper limit mounting base plate (411) is also equipped with a bushing (418), and the upper limit plate (412) is equipped with a guide shaft (414) that passes through the bushing (418); the manual drive assembly includes an adjusting screw (416) connected to the upper limit plate (412), and the upper limit mounting base plate (411) is equipped with an adjusting nut (417) that cooperates with the adjusting screw (416), the adjusting screw (416) passes through the adjusting nut (417) and is equipped with a handle (424).

8. The bottle cap airtightness detector according to any one of claims 1 to 7, characterized in that, The bottle cap placement platform (2) includes a support base A (201), and the upper surface of the support base A (201) is marked with multiple bottle cap placement stations (202); the bottle cap inspection station (5) also includes a support base B (501), and multiple vent pipes (507) are installed on the support base B (501).

9. The bottle cap airtightness tester according to claim 8, characterized in that, Multiple sliding sleeves (502) are fixed on the support base B (501). Each sliding sleeve (502) is equipped with a guide rod (503) that can slide up and down. The bearing platform (504) is fixed on the upper end of the guide rod (503), and the vent pipe (507) is connected to the guide rod (503). A spring (506) is also sleeved on the guide rod (503). The two ends of the spring (506) are respectively pressed against the bearing platform (504) and the support base B (501). The lower end of the guide rod (503) also has a limiting ring (505) with a diameter larger than the inner diameter of the sliding sleeve (502). The lower end of the guide rod (503) is also connected to an air inlet pipe (510).

10. The bottle cap airtightness tester according to claim 9, characterized in that, The outlet end of the vent pipe (507) is conical; the outlet end of the vent pipe (507) is also fitted with a rubber sleeve (508); the outlet end of the vent pipe (507) also has an annular groove (509), and one end of the rubber sleeve (508) is fastened to the groove wall of the annular groove (509).

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