Container outer surface detection mechanism and detection device using same

Abstract

The invention discloses a container outer surface detection mechanism and a detection device applying the same, and relates to the technical field of container detection.The container outer surface detection mechanism comprises a first camera shooting unit, an illumination unit and a reflection unit, a feeding port is formed in the reflection unit, and an annular concave mirror is arranged in the reflection unit; the illumination unit is used for providing a light source for the container and presenting an outer surface image of the container on the annular concave mirror, and the first camera unit is used for shooting the outer surface image of the container presented on the annular concave mirror. When the device is used for detecting the outer surface of a container, the container is put into the reflection unit from the feeding port, the illumination unit irradiates the container, so that an image of the outer surface of the container is presented on the annular concave mirror, the first camera unit collects the image on the annular concave mirror, and the outer surface of the container can be detected. Through the arrangement, the outer surface of the container can be detected by using one first camera unit, so that the detection cost of the outer surface of the container is reduced, and the detection efficiency of the outer surface of the container is improved.

Description

Technical Field

[0001] This application relates to the field of container inspection technology, and in particular to a container outer surface inspection mechanism and an inspection device using the mechanism. Background Technology

[0002] After plastic containers are manufactured, their outer surfaces need to be inspected. Current methods for inspecting container outer surfaces mostly employ a multi-camera collaborative approach. Multiple cameras are deployed at different spatial locations to acquire images of the container's outer surface from multiple preset angles, thus obtaining image data of the container's outer surface from various directions. After image acquisition, the system needs to process and analyze these images from different angles separately, identifying the feature information in each image and finally integrating the data to obtain the inspection result.

[0003] This detection mode has two significant limitations: First, it requires a certain number of cameras to cover all detection angles of the container, which significantly increases the economic investment in the overall detection process. Second, because images from different angles differ in terms of shooting perspective and lighting conditions, subsequent analysis of these images requires setting processing parameters and establishing analysis models for each image individually. This not only prolongs the detection process but also increases the complexity of algorithm design and the computational load on the system, posing a significant challenge to the efficient implementation of detection work. Summary of the Invention

[0004] In order to reduce the inspection cost and improve the inspection efficiency of container outer surfaces, this application provides a container outer surface inspection mechanism and an inspection device using the mechanism.

[0005] Firstly, the container outer surface inspection mechanism provided in this application adopts the following technical solution: A container outer surface inspection mechanism includes a first camera unit, a lighting unit, and a reflection unit. The reflection unit has an inlet for the container to enter the interior of the reflection unit. An annular concave mirror is disposed on the outer periphery of the reflection unit at the inlet. The lighting unit is used to provide a light source for the container and to display an image of the container's outer surface on the annular concave mirror. The first camera unit is located on the opposite side of the annular concave mirror and is used to capture the image of the container's outer surface displayed on the annular concave mirror.

[0006] By adopting the above technical solution, when inspecting the outer surface of a container, the container is placed into the reflective unit through the feed inlet, and the illumination unit illuminates the container, causing the image of the container's outer surface to be projected onto a circular concave mirror. The first camera unit then acquires the image on the circular concave mirror, thus enabling the inspection of the container's outer surface. This setup allows for the inspection of the container's outer surface using only one first camera unit, reducing the inspection cost and improving the inspection efficiency.

[0007] Preferably, the illumination unit is ring-shaped, the illumination unit is coaxially arranged with the ring concave mirror, and the first camera unit is located in the middle of the illumination unit.

[0008] By adopting the above technical solution, the ring-shaped illumination unit can fully illuminate the outer surface of the container, making the images captured by the first camera unit more accurate.

[0009] Secondly, the detection device provided in this application adopts the following technical solution: An inspection device includes the aforementioned container outer surface inspection mechanism and a housing. The outer surface inspection mechanism is disposed inside the housing. The housing is equipped with a translation mechanism, a lifting mechanism, a gripping mechanism, and an inner surface inspection mechanism. The translation mechanism moves and transports the container. The lifting mechanism pushes the container out of the translation mechanism. The gripping mechanism grips the container and transports it into the outer surface inspection mechanism. The gripping mechanism places the qualified container onto the inner surface inspection mechanism, and the inner surface inspection mechanism inspects the inner surface of the container.

[0010] By adopting the above technical solution, after the container is produced, the conveying component transports the container to the translation mechanism. The translation mechanism moves the container to below the lifting mechanism. The lifting mechanism pushes the container out of the translation mechanism. Then, the gripping mechanism moves to grip the container and sends it into the outer surface inspection mechanism. After the outer surface inspection of the container is completed, the gripping mechanism places the container on the inner surface inspection mechanism. The inner surface inspection mechanism then inspects the inner surface of the container, thereby completing the inner and outer inspection of the container.

[0011] Preferably, the translation mechanism includes a first slide rail, a first translation plate, and a first driving member. The first slide rail is disposed inside the housing, the first translation plate is slidably disposed on the first slide rail, the first translation plate has a receiving hole for placing a container, and the first driving member is disposed inside the housing and is used to drive the first translation plate to reciprocate.

[0012] By adopting the above technical solution, the conveying component places the container in the receiving hole of the first translation plate, and the first driving component drives the first translation plate to move back and forth on the first slide rail, thereby enabling the container to be moved and conveyed.

[0013] Preferably, the lifting mechanism includes a second driving component, a mounting plate, a first guide rod, a first lifting plate, and a top column. The mounting plate is fixedly installed inside the housing. The first guide rod slides through the mounting plate. The first lifting plate is fixedly installed at the top end of the first guide rod. The second driving component is installed inside the housing and is used to drive the first lifting plate to move up and down. The top column is installed on the first lifting plate, and the top of the top column moves into the receiving hole.

[0014] By adopting the above technical solution, when the container is transported to the top of the lifting mechanism, the second driving component drives the first lifting plate to move upward, the first lifting plate drives the first guide rod to slide in the mounting plate, the first lifting plate drives the top column to move upward and insert into the receiving hole, and the top column then lifts the container, thereby facilitating the gripping mechanism to grip the container.

[0015] Preferably, a limiting groove is provided at the top of the top column, the diameter of the limiting groove gradually increases from bottom to top, and the bottom of the container is adapted to be located in the limiting groove.

[0016] By adopting the above technical solution, when the top column moves upward and contacts the container, the bottom of the container is located in the limiting groove, which limits the container and makes the upward movement of the container more stable.

[0017] Preferably, the gripping mechanism includes a second slide rail, a second translation plate, a third driving member, a second lifting plate, a fourth driving member, a second guide rod, a fifth driving member, a top cup rod, a guide fixture, and a suction cup. The second slide rail is disposed inside the housing. The second translation plate is slidably disposed on the second slide rail. The third driving member is disposed on the second translation plate and is used to drive the second translation plate to reciprocate. The second guide rod slidably passes through the second translation plate. The second lifting plate is disposed at the bottom end of the second guide rod. The fourth driving member is disposed on the second translation plate and is used to drive the second lifting plate to move up and down. The guide fixture is disposed at the bottom of the second lifting plate, and the bottom of the guide fixture is open. The suction cup is disposed at the bottom of the second lifting plate and is located at the opening of the guide fixture. The fifth driving member is disposed on the second lifting plate. The top cup rod is disposed at the driving end of the fifth driving member, and the bottom end of the top cup rod is located at the opening end of the guide fixture.

[0018] By adopting the above technical solution, the second translation plate slides on the second slide rail. The second translation plate drives the guide fixture to move horizontally above the container through the second lifting plate. The second lifting plate drives the guide fixture to move downward, so that the guide fixture is inserted into the container. The suction cup adsorbs the container onto the guide fixture, thereby enabling the container to move freely. When the container completes the inspection and is transported to the inner surface inspection mechanism, the fifth driving component drives the top cup rod to move. The top cup rod pushes the container out of the guide fixture, so that the container is transported to the inner surface inspection mechanism.

[0019] Preferably, the inner surface inspection mechanism includes a conveyor belt, a guide rod, and a second camera unit. The conveyor belt is disposed inside the housing, the guide rod is disposed inside the housing and located on the conveyor belt, and the second camera unit is disposed inside the housing and located above the conveyor belt.

[0020] By adopting the above technical solution, the gripping mechanism places the container on the conveyor belt, the conveyor belt transports the container, and under the guidance of the guide rod, the container is transported to the area directly below the second camera unit, which then inspects the inner surface of the container.

[0021] Preferably, the first lifting plate includes a first plate body and a second plate body. The first plate body is connected to the driving end of the first guide rod and the second driving member. The second plate body is slidably disposed on the first plate body. The top column is disposed on the second plate body. A sliding groove is formed on the top wall of the first plate body. A slider is fixedly disposed on the bottom wall of the second plate body. The slider is slidably disposed in the sliding groove. First elastic members are provided at both ends of the first plate body located in the sliding groove. The two first elastic members abut against the two ends of the slider. A telescopic positioning rod is provided on the second plate body. A positioning head is formed at the top end of the telescopic positioning rod. A positioning seat is provided on the bottom wall of the first translation plate. The positioning head is adapted to be inserted into the positioning seat.

[0022] By adopting the above technical solution, after long-term use, the distance that the first driving component moves the first translation plate may have slight errors. When the second driving component moves the first plate and the second plate upward, the second plate moves the telescopic positioning rod and the top column together. The telescopic positioning rod first moves the positioning head into the positioning seat. If the first translation plate has errors, the positioning head moves the second plate on the first plate through the telescopic positioning rod, and then moves the top column, reducing the contact error between the top column and the container, thus facilitating the top column to lift the container smoothly. When the second driving component moves the second plate downward, the first elastic element moves the second plate back to its original position through the slider.

[0023] Preferably, each of the top columns has a top rod slidably disposed within it along its own axis. The second plate is provided with a mounting rod, and a push rod is slidably sleeved on the mounting rod. A transmission frame is slidably disposed on the second plate, and the transmission frame drives the push rod and the top rod to move downward. When the second lifting plate moves downward, the second lifting plate drives the push rod to move downward. The push rod drives the top rod to move upward through the transmission frame. The top rod lifts the container and creates a movable gap between the container and the inner wall of the top column limiting groove. The second plate is provided with a second elastic element for driving the transmission frame to move and reset.

[0024] By adopting the above technical solution, after long-term use, the distance that the third driving component drives the second translation plate to move is prone to slight errors. When the fourth driving component drives the second lifting plate to move downward, the second lifting plate drives the push rod to move downward. The push rod drives the top rod to move upward through the transmission frame. The top rod lifts the container and creates a movement gap. The movement gap provides a small movement space for the container, so that when the guide fixture is inserted into the container, the inner wall of the container is not easily scratched.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. Utilizing a reflective unit, when inspecting the outer surface of a container, the container is placed into the reflective unit through the inlet. The illumination unit lights the container, causing an image of the container's outer surface to be projected onto a circular concave mirror. The first camera unit then captures the image on the circular concave mirror, thus enabling the inspection of the container's outer surface. This setup allows for the inspection of the container's outer surface using only one first camera unit, reducing the inspection cost and improving the inspection efficiency. 2. With the aid of the detection device, after the container is produced, the conveying component transports the container to the translation mechanism. The translation mechanism moves the container to below the lifting mechanism. The lifting mechanism pushes the container out of the translation mechanism. Then, the gripping mechanism moves to grip the container and sends it into the outer surface detection mechanism. After the outer surface of the container is detected, the gripping mechanism places the container on the inner surface detection mechanism. The inner surface detection mechanism then detects the inner surface of the container, thus completing the internal and external detection of the container. 3. After prolonged use, the distance the first driving component moves the first translation plate may experience slight errors due to the positioning head. When the second driving component moves the first and second plates upwards, the second plate moves the telescopic positioning rod and the top column together. The telescopic positioning rod first drives the positioning head to insert into the positioning seat. If the first translation plate has errors, the positioning head moves the second plate on the first plate through the telescopic positioning rod, thereby moving the top column and reducing the contact error between the top column and the container, thus facilitating the top column to smoothly lift the container. After the second driving component moves the second plate downwards, the first elastic element moves the second plate back to its original position through the slider. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the container outer surface detection mechanism in Embodiment 1 of this application; Figure 2 This is a schematic diagram of the overall structure of the container outer surface detection mechanism in Embodiment 1 of this application, highlighting the annular concave mirror; Figure 3 This is a schematic diagram of the overall structure of the detection device in Embodiment 2 of this application; Figure 4This is a partial structural schematic diagram of the detection device in Embodiment 2 of this application; Figure 5 This is a partial structural diagram of the detection device in Embodiment 2 of this application, used to highlight the translation mechanism; Figure 6 This is a partial structural diagram of the detection device in Embodiment 2 of this application, with the top column highlighted; Figure 7 This is a partial structural diagram of the detection device in Embodiment 2 of this application, to highlight the lifting block; Figure 8 This is a partial structural diagram of the detection device in Embodiment 2 of this application, used to highlight the gripping mechanism; Figure 9 This is a partial structural diagram of the detection device in Embodiment 2 of this application, to highlight the suction cup; Figure 10 This is a partial structural schematic diagram of the detection device in Embodiment 2 of this application, highlighting the outer surface detection mechanism; Figure 11 This is a partial structural schematic diagram of the detection device in Embodiment 2 of this application, to highlight the inner surface detection mechanism; Figure 12 This is a partial exploded view of the detection device in Embodiment 3 of this application; Figure 13 This is a partial exploded reverse view of the detection device in Embodiment 3 of this application; Figure 14 This is a partial structural cross-sectional view of the detection device in Embodiment 3 of this application; Figure 15 This is a partial structural cross-sectional view of the detection device in Embodiment 3 of this application, highlighting the mounting rod.

[0027] Reference numerals: 1. First camera unit; 2. Illumination unit; 3. Reflection unit; 4. Feed inlet; 5. Annular concave mirror; 6. Translation mechanism; 61. First slide rail; 62. First translation plate; 63. First driving component; 7. Lifting mechanism; 71. Second driving component; 72. Mounting plate; 73. First guide rod; 74. First lifting plate; 741. First plate body; 742. Second plate body; 75. Top column; 751. Column body; 752. Lifting block; 8. Gripping mechanism; 80. Second slide rail; 81. Second translation plate; 82. Third driving component; 83. Second lifting plate; 84. Fourth driving component; 85. Second guide rod; 86. Fifth driving component; 87. Top cup rod; 88. Guide rod; 89. Fixture; 90. Suction cup; 11. Inner surface inspection mechanism; 12. Conveyor belt; 13. Guide rod; 14. Second camera unit; 15. Chassis; 16. Receiving hole; 17. Limiting groove; 18. Slide groove; 19. Sliding block; 20. First elastic element; 21. Telescopic positioning rod; 22. Positioning head; 22. Positioning seat; 22. Top rod; 22. Mounting rod; 23. Push rod; 24. Transmission frame; 25. Moving plate; 26. Push plate; 27. Second elastic element; 28. Container; 29. ​​Frame; 20. First inspection box; 21. Second inspection box; 22. First recycling box; 23. Second recycling box; 34. Air blowing head; 35. Limiting block; 36. Belt. Detailed Implementation

[0028] The following is in conjunction with the appendix Figures 1-15 This application will be described in further detail.

[0029] Example 1: This application discloses a container outer surface inspection mechanism.

[0030] Reference Figure 1 and Figure 2 A container outer surface inspection mechanism includes a first imaging unit 1, an illumination unit 2, and a reflection unit 3. The illumination unit 2 is annular, and the first imaging unit 1 is located in the middle of the illumination unit 2. An annular concave mirror 5 is installed on the side of the reflection unit 3 near the illumination unit 2, and the annular concave mirror 5 is coaxially mounted with the illumination unit 2. A feed inlet 4 is provided in the middle of the annular concave mirror 5 in the reflection unit 3, through which the container 24 can enter the annular concave mirror 5.

[0031] The implementation principle of a container outer surface inspection mechanism according to an embodiment of this application is as follows: In the container 24 outer surface inspection process, after the container 24 to be inspected is fed into the reflective unit 3 through the feed port 4, the illumination unit 2 is activated and illuminates the container 24. During this process, the image of the outer surface of the container 24 is clearly presented on the annular concave mirror 5. Subsequently, the first camera unit 1 acquires the image presented by the annular concave mirror 5, thereby realizing the inspection of the outer surface of the container 24. In this way, the inspection of the outer surface of the container 24 can be completed by only one first camera unit 1. There is no need to configure multiple camera units, reducing equipment investment and thus reducing the overall cost of container 24 outer surface inspection; the image presentation of a single camera unit in conjunction with the annular concave mirror 5 can complete the image acquisition and inspection process more quickly, avoiding the delay that may be caused by multiple devices working together, thereby effectively improving the efficiency of container 24 outer surface inspection.

[0032] Example 2: This application discloses a detection device.

[0033] Reference Figure 3 and Figure 4 A detection device includes the aforementioned container outer surface detection mechanism, and also includes a housing 10. The outer surface detection mechanism is installed inside the housing 10, and the housing 10 is equipped with a translation mechanism 6, a lifting mechanism 7, a gripping mechanism 8, and an inner surface detection mechanism 9.

[0034] Reference Figure 5 The translation mechanism 6 includes a first slide rail 61, a first translation plate 62, and a first drive component 63. A frame 25 is fixedly installed inside the housing 10. The first slide rail 61 is fixedly installed on the frame 25. Two first translation plates 62 are installed, and each first translation plate 62 has four receiving holes 11 spaced apart along its own length. Both first translation plates 62 are slidably installed on the first slide rail 61 via sliders 14, and the two first translation plates 62 are connected to each other. The first drive component 63 is fixedly installed on the frame 25, and the driving end of the first drive component 63 is fixedly connected to the first translation plate 62. In this application, the first drive component 63 can be selected as a cylinder.

[0035] The conveying component accurately places the container 24 into the receiving hole 11 of the first translation plate 62 according to preset positioning parameters, ensuring that the container 24 is in a stable, ready-to-be-conveyed state within the receiving hole 11. The first driving component 63 starts upon receiving instructions from the control system, outputting driving force to drive the first translation plate 62 to reciprocate along the first slide rail 61, causing the container 24 placed in the receiving hole 11 to move synchronously with the first translation plate 62, thereby achieving orderly conveying of the container 24.

[0036] Reference Figure 6The lifting mechanism 7 includes a second driving component 71, a mounting plate 72, first guide rods 73, a first lifting plate 74, and top columns 75. The mounting plate 72 is fixedly installed inside the frame 25. The second driving component 71 is fixedly installed on the bottom wall of the mounting plate 72. In this application, the second driving component 71 can be a cylinder. The driving end of the second driving component 71 is fixedly connected to the first lifting plate 74. Four first guide rods 73 are installed, and the four first guide rods 73 are fixedly installed on the bottom wall of the first lifting plate 74 and slide through the mounting plate 72. The top columns 75 are fixedly installed on the top wall of the first lifting plate 74. Eight top columns 75 are installed, and the eight top columns 75 correspond one-to-one with the eight receiving holes 11 in the two first translation plates 62.

[0037] Reference Figure 7 The top column 75 includes a column body 751 and a lifting block 752. The column body 751 is fixedly installed on the first lifting plate 74, and the lifting block 752 is fixedly installed on the top of the column body 751 by bolts. A limiting groove 12 with a circular cross-section is provided on the top wall of the lifting block 752. The inner diameter of the receiving groove gradually increases from bottom to top, and the bottom of the container 24 is adapted to be located in the limiting groove 12.

[0038] When container 24 is transported to a position directly above lifting mechanism 7, the second drive unit 71 is activated upon receiving a trigger signal from the control system. Its output power drives the first lifting plate 74 to move vertically upwards. Simultaneously, the first lifting plate 74 drives the first guide rod 73 to slide within a preset hole in the mounting plate 72. The sliding of the first guide rod 73 provides precise guidance and constraint for the vertical movement of the first lifting plate 74, ensuring the verticality and stability of its trajectory. As the first lifting plate 74 rises, the top column 75 fixed to its surface moves upwards along with it. When the top column 75 rises to contact the bottom of the container 24, the bottom of the container 24 is precisely embedded in the limiting groove 12 of the lifting block 752. The limiting groove 12 forms a circumferential constraint by adapting to the shape of the bottom of the container 24, effectively limiting the lateral displacement and swaying of the container 24 during the rising process, thereby significantly improving the stability of the container 24 during the rising movement. As the top column 75 continues to rise, it gradually inserts into the receiving hole 11 of the first translation plate 62, and then lifts the container 24 out of the receiving hole 11, so that the container 24 is at a height position that is convenient for the gripping mechanism 8 to perform clamping operations. Reference Figure 4 and Figure 8The gripping mechanism 8 includes a second slide rail 80, a second translation plate 81, a third drive component 82, a second lifting plate 83, a fourth drive component 84, a second guide rod 85, a fifth drive component 86, a top cup rod 87, a guide fixture 88, and a suction cup 89. The second slide rail 80 is fixedly installed inside the housing 10, and the second translation plate 81 is slidably installed on the second slide rail 80 via a slider 14. The third drive component 82 is fixedly installed on the second translation plate 81. In this application, the third drive component 82 can be selected as a servo motor and a drive wheel. The drive wheel is installed on the drive end of the servo motor, and a belt 32 is installed inside the housing 10, with the drive wheel in contact with the belt 32.

[0039] The fourth driving component 84 is fixedly installed in the middle of the second translation plate 81. In this application, the fourth driving component 84 can be a cylinder. The second lifting plate 83 is located below the second translation plate 81 and is fixedly connected to the driving end of the fourth driving component 84. The second guide rod 85 is fixedly installed on the top wall of the second lifting plate 83. Four second guide rods 85 are installed, and the four second guide rods 85 slide through the second translation plate 81.

[0040] Reference Figure 8 and Figure 9 The guide fixtures 88, suction cups 89, and fifth drive components 86 are each equipped with eight components, one for each other. The eight guide fixtures 88 are fixedly installed on the bottom wall of the second lifting plate 83, and the bottom openings of the guide fixtures 88 are provided. The eight suction cups 89 are installed at the bottom of the second lifting plate 83, and the eight suction cups 89 are respectively located in the openings at the bottom of the eight guide fixtures 88, and the suction cups 89 are connected to the suction equipment through pipes.

[0041] Eight fifth drive components 86 are fixedly installed on the top wall of the second lifting plate 83. Sixteen top cup rods 87 are installed, with every two top cup rods 87 fixedly installed on the drive end of the fifth drive component 86 and located on both sides of the suction cup 89, and the bottom end of the top cup rod 87 is located in the opening at the bottom of the guide fixture 88. In this application, the fifth drive component 86 can be a cylinder.

[0042] The third driving component 82 drives the second translation plate 81 to slide along the second slide rail 80. During this process, the second translation plate 81 drives the guide fixture 88 to move synchronously via the second lifting plate 83 until the guide fixture 88 is precisely positioned directly above the container 24. Subsequently, the fourth driving component 84 drives the second lifting plate 83 to move, and the second lifting plate 83 drives the guide fixture 88 to move vertically downward, allowing the guide fixture 88 to smoothly insert into the container 24. The suction cup 89 inside the guide fixture 88 generates negative pressure to firmly adhere the container 24 to the guide fixture 88, thereby enabling the guide fixture 88 to stably drive the container 24 to move freely. When the power output by the fifth driving component 86 causes the top cup rod 87 to move, the bottom end of the top cup rod 87 contacts the bottom of the container 24 and applies a downward thrust, thereby pushing the container 24 out of the guide fixture 88.

[0043] Reference Figure 4 and Figure 10 A first detection box 26 is fixedly installed inside the chassis 10, and eight sets of external surface detection mechanisms are installed inside the first detection box 26. A reflection unit 3 is installed on the top of the first detection box 26, and a light-illuminating unit 2 and a first camera unit 1 are installed on the bottom of the first detection box 26. A first recycling bin 28 is installed on the side of the first detection box 26 inside the chassis 10.

[0044] The gripping mechanism 8 pulls the container 24 into the first inspection box 26 to complete the inspection of the outer surface of the container 24. The gripping mechanism 8 then moves the container 24 above the first recycling box 28. Containers 24 that fail the outer surface inspection are pushed out by the top cup rod 87 and fall into the first recycling box 28. Subsequently, the gripping mechanism 8 moves the qualified container 24 to the inner surface inspection mechanism 9, where the top cup rod 87 pushes the container 24 out and it falls onto the inner surface inspection mechanism 9.

[0045] Reference Figure 3 and Figure 11 The inner surface inspection mechanism 9 includes a conveyor belt 91, a guide rod 92, and a second camera unit 93. The conveyor belt 91 is installed inside the housing 10, and the guide rod 92 is installed inside the housing 10 and located above the conveyor belt 91. A second inspection box 27 is installed on the side of the housing 10, and two second camera units 93 are installed inside the second inspection box 27 and located above the conveyor belt 91. Two air blowing heads 30 are installed downstream of the second camera units 93 on the conveyor belt 91, and a second recycling box 29 is placed below the air blowing heads 30.

[0046] The gripping mechanism 8 performs a release action, precisely placing the container 24 at the designated carrying position on the conveyor belt 91. The conveyor belt 91 operates continuously under the drive system, moving the container 24 along a preset conveying path. Guide rods 92 arranged on the conveyor belt 91 form a guide channel, applying lateral constraints to the movement trajectory of the container 24, effectively preventing it from shifting or tipping during transport and ensuring it moves towards the inspection area in a stable posture. When the container 24 reaches the inspection station under the guidance of the guide rods 92, it is positioned directly below the second camera unit 93. At this point, the conveyor belt 91 pauses to ensure positional accuracy during inspection. The second camera unit 93 then initiates the inspection program, capturing images and recording data from all angles on the inner surface of the container 24, thus completing the inspection of the container 24's inner surface. Subsequently, the conveyor belt 91 continues to move the container 24. Containers 24 that fail inspection are blown into the second recycling bin 29 by the air blower 30, while qualified containers 24 are conveyed to the next station by the conveyor belt 91.

[0047] The implementation principle of Example 2 is as follows: After the production process of container 24 is completed, it is precisely conveyed to the designated station of translation mechanism 6 by the conveying component. Translation mechanism 6 starts according to a preset program, and drives container 24 to move smoothly through the mechanical transmission structure until it reaches the position directly below lifting mechanism 7. At this time, the execution component of lifting mechanism 7 moves upward, lifting container 24 from the bearing surface of translation mechanism 6 and making it detach from the mechanism. Subsequently, gripping mechanism 8 adjusts its displacement according to system instructions, and its end effector precisely grips the ejected container 24 and moves container 24 to the detection area of ​​outer surface detection mechanism according to a preset path. After container 24 completes the comprehensive detection of its outer surface in outer surface detection mechanism, gripping mechanism 8 starts again, taking container 24 out of outer surface detection mechanism and accurately placing it on the detection station of inner surface detection mechanism 9. Inner surface detection mechanism 9 then starts the detection program to detect various indicators of the inner surface of container 24. Through the coordinated operation of the above series of automated mechanisms, the complete detection process of the inner and outer surfaces of container 24 is finally completed.

[0048] Example 3: Reference Figure 12 and Figure 13 The difference between this embodiment and embodiment 2 is that the first lifting plate 74 includes a first plate body 741 and a second plate body 742. The bottom of the first plate body 741 is connected to the driving end of the first guide rod 73 and the second driving member 71. The second plate body 742 is slidably installed on the first plate body 741 along its own width direction. The top column 75 is fixedly installed on the top wall of the second plate body 742.

[0049] Two sliders 14 are fixedly installed on the bottom wall of the second plate 742, and two grooves 13 are formed on the top wall of the first plate 741. The two sliders 14 are slidably installed in the two grooves 13. A first elastic element 15 is installed at both ends of the first plate 741 along the length direction of each groove 13, and the two first elastic elements 15 respectively abut against the two ends of the slider 14 along the length direction. In this application, the first elastic element 15 can be a spring.

[0050] Four telescopic positioning rods 16 are fixedly installed on the top wall of the second plate 742. A conical positioning head 17 is fixedly installed at the top of each telescopic positioning rod 16. Two positioning seats 18 are fixedly installed on the bottom wall of each first translation plate 62. The bottom of the positioning seat 18 forms a groove that matches the positioning head 17, and the four positioning seats 18 correspond one-to-one with the four positioning heads 17.

[0051] Reference Figure 12 , Figure 14 and Figure 15 Two mounting rods 20 are fixedly installed on the top wall of the second plate 742, and a push rod 21 is slidably sleeved on each mounting rod 20. A push rod 19 is slidably installed inside each top column 75 along its own axis. Two transmission frames 22 are symmetrically slidably installed on the second plate 742 along its own width direction. The transmission frames 22 drive the push rod 21 and the push rod 19.

[0052] The transmission frame 22 includes two movable plates 221, four drive blocks 223 and eight push plates 222. The two movable plates 221 are symmetrically slidably mounted on the second plate 742 along the width direction of the second plate 742. A second elastic member 23 is installed at both ends of the movable plates 221. The two ends of the second elastic member 23 are respectively fixedly connected to the two movable plates 221. In this application, the second elastic member 23 can be a tension spring, and the second elastic member 23 pulls the two movable plates 221 to move towards each other.

[0053] Four drive blocks 223 are fixedly mounted on the sidewalls of two movable plates 221 that are close to each other. Each pair of drive blocks 223 clamps a mounting rod 20. The drive blocks 223 are wedge-shaped blocks, and both ends of the bottom of the push rod 21 have chamfers that are adapted to the wedge-shaped drive blocks 223. Eight push plates 222 are fixedly mounted on the sidewalls of two drive plates that are far from each other. The ends of the push plates 222 that are far from the drive plates are slidably mounted on the bottom of the top column 75, and the ends of the push plates 222 are in contact with the bottom end of the top rod 19 through the wedge-shaped surface.

[0054] The implementation principle of Embodiment 3 of this application is as follows: After long-term operation, the distance that the first driving member 63 drives the first translation plate 62 to move is prone to slight errors. When the second driving member 71 drives the first plate 741 and the second plate 742 to move upward, the second plate 742 synchronously drives the telescopic positioning rod 16 and the top column 75 to rise together. At this time, the telescopic positioning rod 16 first causes the positioning head 17 to insert into the groove of the positioning seat 18. If the first translation plate 62 is offset due to error, the positioning head 17 will drive the second plate 742 to make adaptive displacement on the first plate 741 through the elastic extension and contraction characteristics of the telescopic positioning rod 16, thereby adjusting the position of the top column 75 to reduce the contact deviation between the top column 75 and the container 24, ensuring that the top column 75 can smoothly lift the container 24. After the second driving member 71 drives the second plate 742 to move downward and reset, the first elastic member 15 will apply a reset force through the slider 14, driving the second plate 742 back to the initial position, preparing for the next lifting action. Similarly, after long-term use, the distance that the third driving component 82 drives the second translation plate 81 to move may also have slight errors. When the fourth driving component 84 drives the second lifting plate 83 to move downward, the second lifting plate 83 will drive the push rod 21 to descend synchronously. The push rod 21 drives the two moving plates 221 to move away from each other through the driving block 223. The moving plates 221 drive the push plate 222 to move, and the push plate 222 drives the top rod 19 to move upward. During the process of lifting the container 24, the top rod 19 will create an active gap between the outer wall of the container 24 and the limiting groove 12. This gap provides a small position adjustment space for the container 24, so that when the guide fixture 88 is inserted into the container 24, the inner wall of the container 24 can avoid hard scraping with the fixture through a small displacement, effectively protecting the integrity of the inner surface of the container 24.

[0055] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A container outer surface inspection mechanism, characterized in that: The device includes a first camera unit (1), a lighting unit (2), and a reflection unit (3). The reflection unit (3) has an inlet (4) for the container (24) to enter the interior of the reflection unit (3). The reflection unit (3) has an annular concave mirror (5) on the outer periphery of the inlet (4). The lighting unit (2) is used to provide a light source for the container (24) and to display the image of the outer surface of the container (24) on the annular concave mirror (5). The first camera unit (1) is located on the opposite side of the annular concave mirror (5) and is used to capture the image of the outer surface of the container (24) displayed on the annular concave mirror (5).

2. The container outer surface inspection mechanism according to claim 1, characterized in that: The illumination unit (2) is ring-shaped and is coaxially arranged with the ring concave mirror (5), and the first camera unit (1) is located in the middle of the illumination unit (2).

3. A detection device, characterized in that: The container outer surface inspection mechanism, including any one of claims 1-2, further includes a housing (10). The outer surface inspection mechanism is disposed inside the housing (10). The housing (10) is provided with a translation mechanism (6), a lifting mechanism (7), a gripping mechanism (8), and an inner surface inspection mechanism (9). The translation mechanism (6) moves and transports the container (24). The lifting mechanism (7) pushes the container (24) out of the translation mechanism (6). The gripping mechanism (8) grips the container (24) and transports the container (24) into the outer surface inspection mechanism. The gripping mechanism (8) places the qualified container (24) onto the inner surface inspection mechanism (9). The inner surface inspection mechanism (9) inspects the inner surface of the container (24).

4. The detection device according to claim 3, characterized in that: The translation mechanism (6) includes a first slide rail (61), a first translation plate (62), and a first driving member (63). The first slide rail (61) is disposed inside the housing (10). The first translation plate (62) is slidably disposed on the first slide rail (61). The first translation plate (62) has a receiving hole (11) for placing a container (24). The first driving member (63) is disposed inside the housing (10) and is used to drive the first translation plate (62) to reciprocate.

5. The detection device according to claim 4, characterized in that: The lifting mechanism (7) includes a second driving member (71), a mounting plate (72), a first guide rod (73), a first lifting plate (74), and a top column (75). The mounting plate (72) is fixedly installed inside the housing (10). The first guide rod (73) slides through the mounting plate (72). The first lifting plate (74) is fixedly installed at the top of the first guide rod (73). The second driving member (71) is installed inside the housing (10) and is used to drive the first lifting plate (74) to move up and down. The top column (75) is installed on the first lifting plate (74). The top of the top column (75) moves into the receiving hole (11).

6. The detection device according to claim 5, characterized in that: The top of the top column (75) has a limiting groove (12) at its top end. The diameter of the limiting groove (12) gradually increases from bottom to top, and the bottom of the container (24) is adapted to be located in the limiting groove (12).

7. The detection device according to claim 3, characterized in that: The gripping mechanism (8) includes a second slide rail (80), a second translation plate (81), a third drive member (82), a second lifting plate (83), a fourth drive member (84), a second guide rod (85), a fifth drive member (86), a top cup rod (87), a guide fixture (88), and a suction cup (89). The second slide rail (80) is installed inside the housing (10). The second translation plate (81) is slidably mounted on the second slide rail (80). The third drive member (82) is mounted on the second translation plate (81) and is used to drive the second translation plate (81) to reciprocate. The second guide rod (85) slidably passes through the second translation plate (81). The second lifting plate (84) is mounted on the second slide rail (85). The plate (83) is located at the bottom end of the second guide rod (85). The fourth driving member (84) is located on the second translation plate (81) and is used to drive the second lifting plate (83) to move up and down. The guide fixture (88) is located at the bottom of the second lifting plate (83) and has an opening at the bottom. The suction cup (89) is located at the bottom of the second lifting plate (83) and is located at the opening of the guide fixture (88). The fifth driving member (86) is located on the second lifting plate (83). The top cup rod (87) is located at the driving end of the fifth driving member (86) and has its bottom end located at the opening end of the guide fixture (88).

8. The detection device according to claim 3, characterized in that: The inner surface inspection mechanism (9) includes a conveyor belt (91), a guide rod (92), and a second camera unit (93). The conveyor belt (91) is installed inside the housing (10), the guide rod (92) is installed inside the housing (10) and located on the conveyor belt (91), and the second camera unit (93) is installed inside the housing (10) and located above the conveyor belt (91).

9. A detection device according to claim 6, characterized in that: The first lifting plate (74) includes a first plate body (741) and a second plate body (742). The first plate body (741) is connected to the driving end of the first guide rod (73) and the second driving member (71). The second plate body (742) is slidably disposed on the first plate body (741). The top column (75) is disposed on the second plate body (742). A sliding groove (13) is provided on the top wall of the first plate body (741). A slider (14) is fixedly disposed on the bottom wall of the second plate body (742). 14) The slide is set in the slide groove (13). The first plate (741) is provided with first elastic elements (15) at both ends of the slide groove (13). The two first elastic elements (15) abut against the two ends of the slider (14). The second plate (742) is provided with a telescopic positioning rod (16). The top end of the telescopic positioning rod (16) forms a positioning head (17). The bottom wall of the first translation plate (62) is provided with a positioning seat (18). The positioning head (17) is adapted to be inserted into the positioning seat (18).

10. A detection device according to claim 9, characterized in that: Each of the top columns (75) is slidably provided with a top rod (19) along its own axis. The second plate (742) is provided with an installation rod (20), and a push rod (21) is slidably sleeved on the installation rod (20). The second plate (742) is slidably provided with a transmission frame (22), and the transmission frame (22) drives the push rod (21) and the top rod (19) to move. When the second lifting plate (83) moves downward, the second lifting plate (83) drives the push rod (21) to move downward. The push rod (21) drives the top rod (19) to move upward through the transmission frame (22). The top rod (19) lifts the container (24) and creates an active gap between the container (24) and the inner wall of the limiting groove (12) of the top column (75). The second plate (742) is provided with a second elastic element (23) for driving the transmission frame (22) to move and reset.

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