Unmanned visual inspection equipment for plastic bottle appearance quality

Abstract

The present application relates to an unmanned visual inspection device for the appearance quality of plastic bottles, and relates to the technical field of quality inspection in the plastic product processing industry, which includes an inspection machine, a detection mechanism is arranged inside the inspection machine, a first conveyor belt is arranged inside the inspection machine, a clamping assembly is arranged inside the inspection machine, and a straightening assembly is arranged inside the inspection machine. The present application reduces manual intervention, realizes unmanned operation throughout the process, greatly improves inspection efficiency and consistency, reduces labor costs, enhances defect recognition capabilities through multi-angle high-definition camera arrays and advanced image processing technology, especially for the precise positioning of subtle defects, ensures higher inspection accuracy and reliability, and effectively controls the cost of the overall equipment, which is suitable for use by enterprises of all sizes, and promotes the widespread popularization and application of this technology.

Description

Technical Field

[0001] The present application relates to the technical field of quality inspection, and in particular to an unmanned visual inspection device for the appearance quality of plastic bottles. Background Art

[0002] Quality inspection in the plastic products processing industry is a series of comprehensive assessments of finished or semi-finished plastics to ensure that they meet the specified quality standards. Unqualified plastic products may cause a variety of problems, such as reduced mechanical properties, shortened service life, and may even have a negative impact on the environment and human health. Therefore, the quality inspection of plastic products plays a vital role in the manufacturing process.

[0003] With the promotion of the concept of Industry 4.0, the manufacturing industry has an increasing demand for intelligent production and automated equipment. Especially in the plastic products processing industry, how to improve product quality while reducing costs has become the focus of major manufacturers. Traditional plastic bottle appearance quality inspection mostly relies on manual visual inspection, which is not only inefficient, but also easily affected by human factors, resulting in a high misjudgment rate.

[0004] However, existing methods for inspecting the appearance quality of plastic bottles generally have problems such as low efficiency, low accuracy and high cost. Manual inspection is not only time-consuming and labor-intensive, but also easily interfered by subjective factors. Although the semi-automatic inspection system has been improved, its limitations in complex defect identification and high initial investment limit its widespread application. High-end intelligent inspection equipment is difficult to promote in small and medium-sized enterprises due to its high price and high technical threshold. Summary of the invention

[0005] The purpose of this application is to provide an unmanned visual inspection device for the appearance quality of plastic bottles.

[0006] The unmanned visual inspection equipment for the appearance quality of plastic bottles provided in this application adopts the following technical solutions:

[0007] The unmanned visual inspection equipment for the appearance quality of plastic bottles comprises an inspection machine, a detection mechanism is arranged inside the inspection machine, a first conveyor belt is arranged inside the inspection machine, a clamping assembly is arranged inside the inspection machine, and a straightening assembly is arranged inside the inspection machine.

[0008] By adopting the above technical solution, the product to be inspected (the packaging bottle of laundry detergent in the figure) will first pass through the clamping component, which will clamp and lift the product to be inspected. When passing through the first camera, the bottom of the product to be inspected will be photographed after being filled with light by the light source, and then it will continue to move forward and pass through the second camera to take a photo of the top of the product to be inspected.

[0009] Optionally, the detection machine includes a body, a bracket, a mobile frame, a controller and a detector, the bracket is arranged inside the body, the mobile frame is installed on the upper wall of the body, the controller is installed at one end of the mobile frame, and the detector is fixed on the upper wall of the body.

[0010] By adopting the above technical solution, when the detection machine is used, the detector will monitor the abnormal conditions in the detection process in real time. If defects are detected in the product, such as scratches on the bottle, the bottle cap is not completely tightened, or the label is crooked, the detector will immediately send out an alarm signal to prompt the operator to check and handle it. In addition, the staff can be responsible for the operation logic control of the entire detection machine through the controller, including the start and stop of the conveyor belt, the camera's photo taking time, and the coordinated actions of the clamping assembly and the straightening assembly.

[0011] Optionally, the detection mechanism includes a first camera, a third bidirectional screw, a second camera, a protective plate, a third camera, a fourth bidirectional screw, a first rocker and a fourth camera, the first camera is arranged at the bottom of the bracket, the third bidirectional screw is installed on the inner wall of the bracket, the second camera is arranged inside the third bidirectional screw, a protective plate is installed on the outer wall of the bracket, the third camera is arranged on the outer wall of the protective plate, the fourth bidirectional screw is arranged on the outer wall of the bracket, the first rocker is installed on the fourth bidirectional screw, and the fourth camera is installed on the outer wall of the fourth bidirectional screw.

[0012] By adopting the above technical solution, when the product to be inspected enters the first conveyor belt, first, the first camera will capture the bottom image of the plastic bottle to be inspected. Through the movement of the third bidirectional screw rod, the second camera can collect the image of the top of the plastic bottle. The protection plate and the third camera are set to protect the camera from external interference, and the plastic bottle can be inspected from different angles to ensure the comprehensiveness of the inspection. The combination of the fourth bidirectional screw rod and the first rocker arm, as well as the setting of the fourth camera, enable the equipment to perform a final detailed inspection of the side of the plastic bottle before the plastic bottle is conveyed out of the inspection machine, thereby realizing all-round quality inspection.

[0013] Optionally, the clamping assembly includes a second conveyor belt, a fifth bidirectional screw, a clamping plate, a first bidirectional screw, and a second rocker. The second conveyor belt is arranged inside the bracket, and the fifth bidirectional screw is arranged outside the second conveyor belt. The clamping plate is installed on the outer wall of the fifth bidirectional screw, the first bidirectional screw is installed on the inner wall of the clamping plate, and the second rocker is installed on the fifth bidirectional screw.

[0014] By adopting the above technical solution, when the product to be inspected passes through the clamping assembly, the product to be inspected is clamped and lifted by the clamping assembly, and the second conveyor belt of the clamping assembly smoothly conveys the plastic bottle to the specified position. The fifth bidirectional screw is responsible for adjusting the position of the clamping plate to ensure that the clamping plate can be accurately aligned with the center of the plastic bottle. Then, the clamping plate can be flexibly extended and retracted under the drive of the first bidirectional screw, thereby achieving a stable clamping of the plastic bottle. The second rocker and the fifth bidirectional screw provide additional flexibility for the clamping assembly, so that the clamping plate can adapt to plastic bottles of different sizes and shapes during the clamping process, thereby ensuring the accuracy and efficiency of clamping.

[0015] Optionally, the righting assembly includes a support rod, a fixed platform, a third rocker, a second screw rod, a fixed plate, a cylinder and a righting block, the support rod is fixed to the outer wall of the fuselage, one end of the support rod is fixed to the fixed platform, the third rocker is installed on the outer wall of the fixed platform, a second screw rod is arranged inside the fixed platform, both ends of the second screw rod are threadedly connected to the fixed plate, a cylinder is installed on the upper part of the outer wall of the fixed plate, and the output end of the cylinder is connected to the righting block.

[0016] By adopting the above technical solution, when the plastic bottle is to be sent out from the detection machine, it will finally pass through the straightening assembly, wherein the cylinder is driven under the command of the controller to push the straightening block to move along the second screw rod, thereby driving the straightening block to perform corresponding telescopic movements. Under the action of the cylinder, the straightening block can accurately straighten the plastic bottle to ensure that the plastic bottle maintains the correct posture during the transportation process and avoids detection errors caused by tilting or tipping. In addition, the cooperation between the third rocker of the straightening assembly and the fixed platform makes the straightening block have a certain flexibility when straightening the plastic bottle, and can adapt to plastic bottles of different shapes and sizes, thereby improving the straightening efficiency and accuracy.

[0017] Optionally, the protective plates and the third cameras are provided in multiple groups, and corresponding third cameras are respectively installed on the outer walls of the multiple groups of protective plates, and the positions of the multiple groups of protective plates and the third cameras correspond one-to-one.

[0018] By adopting the above technical solution, after the plastic bottle passes through the clamping assembly, it will continue to move along the conveyor belt and enter the detection area. In this area, multiple sets of protective plates and the third camera work together to ensure all-round detection of the plastic bottle. The protective plate not only protects the third camera from external interference, but also provides a stable detection environment for the plastic bottle. The third camera is responsible for capturing the image information of the plastic bottle and is arranged at different angles to ensure that the appearance details of the plastic bottle can be obtained from all directions.

[0019] Optionally, there are multiple groups of the fourth bidirectional screw rod, the first rocker arm and the fourth camera, and the upper walls of the multiple groups of the fourth bidirectional screw rods are respectively installed with corresponding first rockers, and the outer walls of the multiple groups of the fourth bidirectional screw rods are installed with corresponding fourth cameras, and the multiple groups of the fourth bidirectional screw rods, the first rocker arm and the fourth camera are symmetrically arranged about the width axis of the fuselage.

[0020] By adopting the above technical solution, after the plastic bottle passes through the detection area of ​​the third camera, it will continue to move along the conveyor belt and enter the detection area of ​​the fourth camera. In this area, multiple sets of fourth bidirectional screw rods, the first rocker arm and the fourth camera work together to ensure further detection of the plastic bottle. Under the action of the first rocker arm, the fourth bidirectional screw rod can accurately position and move the fourth camera to ensure that the fourth camera remains stable during the detection process, thereby improving the accuracy of the detection. The fourth camera is arranged at different angles to ensure that the appearance details of the plastic bottle can be obtained from all directions.

[0021] Optionally, the two clamping plates and the first bidirectional screw rod form a telescopic structure, the two ends of the first bidirectional screw rod are respectively installed with corresponding clamping plates, and the fifth bidirectional screw rod and the clamping plate form a sliding structure.

[0022] By adopting the above technical solution, the sliding action of the fifth bidirectional screw can ensure that the clamping plate can adapt to the size changes of different bottle types when clamping the plastic bottle, and achieve precise positioning. Under the drive of the first bidirectional screw, the clamping plate can flexibly extend and retract, thereby achieving a stable clamping of the plastic bottle.

[0023] Optionally, the two fixing plates and the second screw rod form a telescopic structure, corresponding fixing plates are respectively installed at both ends of the second screw rod, and the cylinder and the straightening block form a telescopic structure.

[0024] By adopting the above technical solution, when the plastic bottle passes through the straightening assembly, it will continue to move along the conveyor belt and prepare to leave the detection machine. During this process, the telescopic structure composed of the two fixed plates and the second screw rod can ensure that the straightening block has sufficient flexibility when straightening the plastic bottle and can adapt to plastic bottles of different shapes and sizes, thereby improving the straightening efficiency and accuracy.

[0025] Optionally, the two straightening blocks are symmetrically arranged about the width center axis of the fuselage, a clamping assembly is arranged at one end of the first conveyor belt, and a straightening assembly is arranged at the other end of the first conveyor belt.

[0026] By adopting the above technical solution, the symmetrical setting of the clamping component and the straightening component ensures the stability and consistency of the plastic bottle during the transportation process. No matter how the shape and size of the plastic bottle changes, its correct posture during the detection process can be guaranteed, thereby improving the accuracy and efficiency of the detection.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. Reduced manual intervention, achieved unmanned operation throughout the process, greatly improved detection efficiency and consistency, and reduced labor costs.

[0029] 2. Through the multi-angle high-definition camera array and advanced image processing technology, the defect recognition capability is enhanced, especially the precise positioning of subtle defects, ensuring higher detection accuracy and reliability.

[0030] 3. The cost of the overall equipment is effectively controlled, making it suitable for use by enterprises of all sizes, and promoting the widespread popularization and application of this technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0032] Figure 2 It is a schematic diagram of the structure of the detection mechanism of an embodiment of the present application;

[0033] Figure 3 is a schematic diagram of the structure of a third camera in an embodiment of the present application;

[0034] Figure 4 is a schematic diagram of the structure of the clamping assembly of an embodiment of the present application;

[0035] Figure 5 is a schematic diagram of the structure of the righting assembly of an embodiment of the present application;

[0036] Figure 6 This is an embodiment of the present application Figure 3 The enlarged structural diagram at A in the middle;

[0037] Figure 7 It is a schematic diagram of the structure of the righting assembly of an embodiment of the present application.

[0038] Explanation of the accompanying drawings: 1. detection machine; 11. fuselage; 12. bracket; 13. mobile frame; 14. controller; 15. detector; 2. detection mechanism; 21. first camera; 22. third bidirectional screw rod; 23. second camera; 24. protective plate; 25. third camera; 26. fourth bidirectional screw rod; 27. first rocker; 28. fourth camera; 3. first conveyor belt; 4. clamping assembly; 41. second conveyor belt; 42. fifth bidirectional screw rod; 43. clamping plate; 44. first bidirectional screw rod; 45. second rocker; 5. straightening assembly; 51. support rod; 52. fixed table; 53. third rocker; 54. second screw rod; 55. fixed plate; 56. cylinder; 57. straightening block. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1 - Attachment Figure 7 , further details of this application are given.

[0040] Embodiment: An unmanned visual inspection device for the appearance quality of plastic bottles comprises an inspection machine 1, an inspection mechanism 2 is arranged inside the inspection machine 1, a first conveyor belt 3 is arranged inside the inspection machine 1, a clamping assembly 4 is arranged inside the inspection machine 1, and a straightening assembly 5 is arranged inside the inspection machine 1, wherein the product to be inspected (the packaging bottle of laundry detergent in the figure) will first pass through the clamping assembly 4, and the product to be inspected will be clamped and lifted up by the clamping assembly 4, and when passing through the first camera 21, the bottom of the product to be inspected will be photographed and inspected after being supplemented with light by a light source, and then continue forward and pass through the second camera 23 to take a photograph of the top of the product to be inspected.

[0041] The inspection machine 1 includes a body 11, a bracket 12, a mobile frame 13, a controller 14 and a detector 15. The bracket 12 is arranged inside the body 11, the mobile frame 13 is installed on the upper wall of the body 11, the controller 14 is installed at one end of the mobile frame 13, and the detector 15 is fixed on the upper wall of the body 11. When the inspection machine 1 is used, the detector 15 will monitor the abnormal conditions in the inspection process in real time. If defects are detected in the product, such as scratches on the bottle body, the bottle cap is not completely tightened or the label is crooked, the detector 15 will immediately send out an alarm signal to prompt the operator to check and handle it. In addition, the staff can be responsible for the operation logic control of the entire inspection machine through the controller 14, including the start and stop of the conveyor belt, the photo taking time of the camera, and the coordinated actions of the clamping component and the straightening component.

[0042] The detection mechanism 2 includes a first camera 21, a third bidirectional screw rod 22, a second camera 23, a protective plate 24, a third camera 25, a fourth bidirectional screw rod 26, a first rocker 27 and a fourth camera 28. The first camera 21 is arranged at the bottom of the bracket 12, the third bidirectional screw rod 22 is rotatably mounted on the inner wall of the bracket 12, the second camera 23 is connected to the inner thread of the third bidirectional screw rod 22, a protective plate 24 is installed on the outer wall of the bracket 12, the third camera 25 is arranged on the outer wall of the protective plate 24, the fourth bidirectional screw rod 26 is rotatably mounted on the outer wall of the bracket 12, the first rocker 27 is installed on the fourth bidirectional screw rod 26, and the fourth bidirectional screw rod 26 is threadedly mounted on the outer wall. There is a fourth camera 28. When the product to be inspected enters the first conveyor belt 3, first, the first camera 21 will capture the bottom image of the plastic bottle to be inspected. Through the movement of the third bidirectional screw rod 22, the second camera d23 can collect images of the top of the plastic bottle. The protection plate 24 and the third camera 25 are set to protect the camera from external interference, and can inspect the plastic bottle from different angles to ensure the comprehensiveness of the inspection. The combination of the fourth bidirectional screw rod 26 and the first rocker arm 27, as well as the setting of the fourth camera 28, enables the equipment to perform a final detailed inspection of the side of the plastic bottle before the plastic bottle is conveyed out of the inspection machine 1, thereby realizing all-round quality inspection.

[0043] The clamping assembly 4 includes a second conveyor belt 41, a fifth bidirectional screw 42, a clamping plate 43, a first bidirectional screw 44, and a second rocker 45. The second conveyor belt 41 is arranged inside the bracket 12, and the fifth bidirectional screw 42 is arranged outside the second conveyor belt 41. The clamping plate 43 is installed on the outer wall of the fifth bidirectional screw 42, and the first bidirectional screw 44 is threadedly installed on the inner wall of the clamping plate 43. The second rocker 45 is installed on the fifth bidirectional screw 42. When the product to be detected passes through the clamping assembly 4, the product to be detected is clamped and lifted up by the clamping assembly 4. The clamping assembly 4 The second conveyor belt 41 will smoothly convey the plastic bottles to the specified position, and the fifth bidirectional screw rod 42 is responsible for adjusting the position of the clamping plate 43 to ensure that the clamping plate 43 can be accurately aligned with the center of the plastic bottle. Then, the clamping plate 43 can be flexibly extended and retracted under the drive of the first bidirectional screw rod 44, so as to achieve a stable clamping of the plastic bottle. The second rocker arm 45 cooperates with the setting of the fifth bidirectional screw rod 42 to provide additional flexibility for the clamping assembly 4, so that the clamping plate 43 can adapt to plastic bottles of different sizes and shapes during the clamping process, thereby ensuring the accuracy and efficiency of the clamping.

[0044] The straightening assembly 5 includes a support rod 51, a fixed platform 52, a third rocker 53, a second screw rod 54, a fixed plate 55, a cylinder 56 and a straightening block 57. The support rod 51 is fixed to the outer wall of the fuselage 11, and the fixed platform 52 is fixed at one end of the support rod 51. The third rocker 53 is installed on the outer wall of the fixed platform 52. The second screw rod 54 is rotatably arranged inside the fixed platform 52. The two ends of the second screw rod 54 are threadedly connected to the fixed plate 55. The upper part of the outer wall of the fixed plate 55 is installed with a cylinder 56. The output end of the cylinder 56 is connected to the straightening block 57. When the plastic bottle is to be sent out from the detection machine 1, it will finally pass through The straightening assembly 5, in which the cylinder 56 is driven under the command of the controller 14, pushes the fixing plate 55 to extend and retract along the second screw rod 54, thereby driving the straightening block 57 to perform corresponding telescopic movements. Under the action of the cylinder 56, the straightening block 57 can accurately straighten the plastic bottle to ensure that the plastic bottle maintains the correct posture during the transportation process and avoids detection errors caused by tilting or tipping. In addition, the cooperation between the third rocker 53 of the straightening assembly 5 and the fixed platform 52 makes the straightening block 57 have a certain flexibility when straightening the plastic bottle, and can adapt to plastic bottles of different shapes and sizes, thereby improving the straightening efficiency and accuracy.

[0045] There are multiple groups of protective plates 24 and third cameras 25, and the outer walls of the multiple groups of protective plates 24 are respectively installed with corresponding third cameras 25, and the positions of the multiple groups of protective plates 24 and the third cameras 25 correspond one by one. After the plastic bottle passes through the clamping assembly 4, it will continue to move along the conveyor belt and enter the detection area. In this area, the multiple groups of protective plates 24 and the third camera 25 work together to ensure all-round detection of the plastic bottle. The protective plate 24 not only protects the third camera 25 from external interference, but also provides a stable detection environment for the plastic bottle. The third camera 25 is responsible for capturing the image information of the plastic bottle and is arranged at different angles to ensure that the appearance details of the plastic bottle can be obtained from all directions.

[0046] There are multiple groups of fourth bidirectional screw rods 26, first rocker arms 27 and fourth cameras 28, and the upper walls of the multiple groups of fourth bidirectional screw rods 26 are respectively installed with corresponding first rocker arms 27, and the outer walls of the multiple groups of fourth bidirectional screw rods 26 are installed with corresponding fourth cameras 28, and the multiple groups of fourth bidirectional screw rods 26, first rocker arms 27 and fourth cameras 28 are symmetrically arranged with the width center axis of the fuselage 11. After the plastic bottle passes through the detection area of ​​the third camera 25, it will continue to move along the conveyor belt and enter the detection area of ​​the fourth camera 28. In this area, multiple groups of fourth bidirectional screw rods 26, first rocker arms 27 and fourth cameras 28 work together to ensure further detection of the plastic bottle. Under the action of the first rocker arm 27, the fourth bidirectional screw rod 26 can accurately position and move the fourth camera 28 to ensure that the fourth camera 28 remains stable during the detection process, thereby improving the accuracy of the detection. The fourth camera 28 is arranged at different angles to ensure that the appearance details of the plastic bottle can be obtained from all directions.

[0047] The two clamping plates 43 and the first bidirectional screw rod 44 form a telescopic structure, and the corresponding clamping plates 43 are respectively installed at both ends of the first bidirectional screw rod 44. The fifth bidirectional screw rod 42 and the clamping plate 43 form a sliding structure, wherein the sliding action of the fifth bidirectional screw rod 42 can ensure that the clamping plate 43 can adapt to the size changes of different bottle types when clamping the plastic bottle, and realize precise positioning. Under the drive of the first bidirectional screw rod 44, the clamping plate 43 can flexibly perform telescopic actions, thereby realizing a firm clamping of the plastic bottle.

[0048] The two fixed plates 55 and the second screw rod 54 form a telescopic structure, and the corresponding fixed plates 55 are respectively installed at both ends of the second screw rod 54. The cylinder 56 and the straightening block 57 form a telescopic structure. When the plastic bottle passes through the straightening component 5, it will continue to move along the conveyor belt and prepare to leave the detection machine 1. In this process, the telescopic structure formed by the two fixed plates 55 and the second screw rod 54 can ensure that the straightening block 57 has sufficient flexibility when straightening the plastic bottle, and can adapt to plastic bottles of different shapes and sizes, thereby improving the straightening efficiency and accuracy.

[0049] The two straightening blocks 57 are symmetrically arranged with respect to the width center axis of the fuselage 11, a clamping assembly 4 is arranged at one end of the first conveyor belt 3, and a straightening assembly 5 is arranged at the other end of the first conveyor belt 3, wherein the symmetrical arrangement of the clamping assembly 4 and the straightening assembly 5 ensures the stability and consistency of the plastic bottles during the conveying process, and can ensure the correct posture of the plastic bottles during the detection process regardless of how the shape and size of the plastic bottles change, thereby improving the accuracy and efficiency of the detection.

[0050] The implementation principle of the embodiment of the present application is as follows: when performing visual inspection, the product to be inspected (the packaging bottle of laundry detergent in the figure) will first pass through the clamping assembly 4, and the product to be inspected will be clamped and lifted up by the clamping assembly 4. When passing through the first camera 21, the bottom of the product to be inspected will be photographed and inspected after being supplemented with light by the light source, and then it will continue to pass through the second camera 23 and then the top of the product to be inspected will be photographed and inspected. When using the inspection machine 1, the detector 15 will monitor the abnormal situation during the inspection process in real time. If defects are detected in the product, such as scratches on the bottle body, the bottle cap is not completely tightened or the label is crooked, the detector 15 will immediately send out an alarm signal to prompt the operator to check and handle it. In addition, the staff can use the controller 14 It is responsible for the operation logic control of the entire inspection machine, including the start and stop of the conveyor belt, the camera's photo-taking timing, and the coordinated actions of the clamping assembly and the straightening assembly. First, the first camera 21 will capture the bottom image of the plastic bottle to be inspected. Through the movement of the third bidirectional screw rod 22, the second camera 23 can collect images of the top of the plastic bottle. The protection plate 24 and the third camera 25 are set to protect the camera from external interference, and can inspect the plastic bottle from different angles to ensure the comprehensiveness of the inspection. The combination of the fourth bidirectional screw rod 26 and the first rocker arm 27, as well as the setting of the fourth camera 28, enables the equipment to conduct a final detailed inspection of the side of the plastic bottle before the plastic bottle is transported out of the inspection machine 1, thereby achieving all-round quality control. When the product to be tested passes through the clamping assembly 4, the products to be tested of different sizes can be changed in position by using the crank in advance so that the product to be tested can be clamped and lifted by the clamping assembly 4. The second conveyor belt 41 of the clamping assembly 4 will smoothly convey the plastic bottle to the specified position. The fifth bidirectional screw rod 42 is responsible for adjusting the position of the clamping plate 43 to ensure that the clamping plate can be accurately aligned with the center of the plastic bottle. Then, the clamping plate 43 can be flexibly extended and retracted under the drive of the first bidirectional screw rod 44, so as to achieve a stable clamping of the plastic bottle. The second rocker 45 cooperates with the setting of the fifth bidirectional screw rod 42 to provide additional flexibility for the clamping assembly 4, so that the clamping plate 43 can adapt to plastic bottles of different sizes and shapes during the clamping process. , ensuring the accuracy and efficiency of clamping. When the plastic bottle is to be sent out from the detection machine 1, it will finally pass through the straightening component 5, in which the cylinder 56 is driven under the instruction of the controller 14 to push the fixed plate 55 to extend and retract along the second screw rod 54, thereby driving the straightening block 57 to perform corresponding telescopic movements. Under the action of the cylinder 56, the straightening block 57 can accurately straighten the plastic bottle to ensure that the plastic bottle maintains the correct posture during the transportation process and avoids detection errors caused by tilting or tipping. In addition, the cooperation between the third rocker 53 of the straightening component 5 and the fixed platform 52 makes the straightening block 57 have a certain flexibility when straightening the plastic bottle, and can adapt to plastic bottles of different shapes and sizes, thereby improving the straightening efficiency and accuracy. After the plastic bottle passes through the clamping component 4,The plastic bottles will continue to move along the conveyor belt and enter the detection area. In this area, multiple sets of protective plates 24 and the third camera 25 work together to ensure all-round detection of the plastic bottles. The protective plates 24 not only protect the third camera 25 from external interference, but also provide a stable detection environment for the plastic bottles. The third camera 25 is responsible for capturing the image information of the plastic bottles and is arranged at different angles to ensure that the appearance details of the plastic bottles can be obtained from all directions. After passing through the detection area of ​​the third camera 25, the plastic bottles will continue to move along the conveyor belt and enter the detection area of ​​the fourth camera 28. In this area, multiple sets of fourth bidirectional screw rods 26, the first rocker 27 and the fourth camera 28 work together to ensure further detection of the plastic bottles. Under the action of the first rocker 27, the fourth bidirectional screw rod 26 can accurately position and move the fourth camera 28 to ensure that the fourth camera 28 remains stable during the detection process, thereby improving the accuracy of the detection. The fourth camera 28 are arranged at different angles to ensure that the appearance details of the plastic bottle can be obtained from all directions. The sliding action of the fifth bidirectional screw 42 can ensure that the clamping plate 43 can adapt to the size changes of different bottle types when clamping the plastic bottle, and achieve precise positioning. The clamping plate 43 can flexibly perform telescopic actions under the drive of the first bidirectional screw 44, so as to achieve a stable clamping of the plastic bottle. When the plastic bottle passes through the straightening of the straightening component 5, it will continue to move along the conveyor belt and prepare to leave the detection machine 1. In this process, the telescopic structure composed of the two fixed plates 55 and the second screw 54 can ensure that the straightening block 57 has sufficient flexibility when straightening the plastic bottle, and adapts to plastic bottles of different shapes and sizes, thereby improving the straightening efficiency and accuracy. The symmetrical setting of the clamping component 4 and the straightening component 5 ensures the stability and consistency of the plastic bottle during the conveying process. No matter how the shape and size of the plastic bottle change, it can ensure its correct posture during the detection process, thereby improving the accuracy and efficiency of the detection. ,

[0051] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An unmanned visual inspection device for the appearance quality of plastic bottles, comprising an inspection machine (1), a detection mechanism (2) being arranged inside the inspection machine (1), a first conveyor belt (3) being arranged inside the inspection machine (1), a clamping assembly (4) being arranged inside the inspection machine (1), and a straightening assembly (5) being arranged inside the inspection machine (1), the clamping assembly (4) being arranged at the input end of the first conveyor belt (3), the detection mechanisms (2) being arranged outside the first conveyor belt (3), and the straightening assembly (5) being arranged at the conveying end of the first conveyor belt (3); The detection machine (1) comprises a body (11), a bracket (12), a mobile frame (13), a controller (14) and a detector (15); the bracket (12) is arranged inside the body (11); the mobile frame (13) is mounted on the upper wall of the body (11); the controller (14) is mounted on one end of the mobile frame (13); and the detector (15) is fixed on the upper wall of the body (11); The detection mechanism (2) comprises a first camera (21), a third bidirectional screw rod (22), a second camera (23), a protective plate (24), a third camera (25), a fourth bidirectional screw rod (26), a first rocker (27) and a fourth camera (28); the first camera (21) is arranged at the bottom of the bracket (12); the third bidirectional screw rod (22) is mounted on the inner wall of the bracket (12); the second camera (23) is arranged inside the third bidirectional screw rod (22); the protective plate (24) is mounted on the outer wall of the bracket (12); the third camera (25) is mounted on the outer wall of the protective plate (24); the fourth bidirectional screw rod (26) is mounted on the outer wall of the bracket (12); the first rocker (27) is mounted on the fourth bidirectional screw rod (26); and the fourth camera (28) is mounted on the outer wall of the fourth bidirectional screw rod (26).

2. The unmanned visual inspection equipment for the appearance quality of plastic bottles according to claim 1 is characterized in that: The clamping assembly (4) comprises a second conveyor belt (41), a fifth bidirectional screw rod (42), a clamping plate (43), a first bidirectional screw rod (44), and a second rocker (45); the second conveyor belt (41) is arranged inside the bracket (12); the fifth bidirectional screw rod (42) is arranged outside the second conveyor belt (41); the clamping plate (43) is installed on the outer wall of the fifth bidirectional screw rod (42); the first bidirectional screw rod (44) is installed on the inner wall of the clamping plate (43); and the second rocker (45) is installed on the fifth bidirectional screw rod (42).

3. The unmanned visual inspection equipment for the appearance quality of plastic bottles according to claim 1 is characterized in that: The straightening assembly (5) comprises a support rod (51), a fixing platform (52), a third rocking arm (53), a second screw rod (54), a fixing plate (55), a cylinder (56) and a straightening block (57); the support rod (51) is fixed to the outer wall of the fuselage (11); one end of the support rod (51) is fixed to the fixing platform (52); the third rocking arm (53) is mounted on the outer wall of the fixing platform (52); a second screw rod (54) is arranged inside the fixing platform (52); both ends of the second screw rod (54) are threadedly connected to the fixing plate (55); a cylinder (56) is mounted on the upper part of the outer wall of the fixing plate (55); and the output end of the cylinder (56) is connected to the straightening block (57).

4. The unmanned visual inspection equipment for the appearance quality of plastic bottles according to claim 1 is characterized in that: The protective plates (24) and the third cameras (25) are provided in multiple groups, and corresponding third cameras (25) are respectively installed on the outer walls of the multiple groups of protective plates (24), and the positions of the multiple groups of protective plates (24) and the third cameras (25) correspond one to one.

5. The unmanned visual inspection equipment for the appearance quality of plastic bottles according to claim 1 is characterized in that: The fourth bidirectional screw rod (26), the first rocker (27) and the fourth camera (28) are provided in multiple groups, and the upper walls of the multiple groups of the fourth bidirectional screw rod (26) are respectively installed with corresponding first rockers (27), and the outer walls of the multiple groups of the fourth bidirectional screw rod (26) are installed with corresponding fourth cameras (28), and the multiple groups of the fourth bidirectional screw rod (26), the first rocker (27) and the fourth camera (28) are symmetrically arranged with respect to the width center axis of the fuselage (11).

6. The unmanned visual inspection equipment for the appearance quality of plastic bottles according to claim 2 is characterized in that: The two clamping plates (43) and the first bidirectional screw rod (44) form a telescopic structure, the two ends of the first bidirectional screw rod (44) are respectively provided with corresponding clamping plates (43), and the fifth bidirectional screw rod (42) and the clamping plate (43) form a sliding structure.

7. The unmanned visual inspection equipment for the appearance quality of plastic bottles according to claim 3 is characterized in that: The two fixing plates (55) and the second screw rod (54) form a telescopic structure, the two ends of the second screw rod (54) are respectively mounted with corresponding fixing plates (55), and the cylinder (56) and the straightening block (57) form a telescopic structure.

8. The unmanned visual inspection equipment for the appearance quality of plastic bottles according to claim 3 is characterized in that: The two straightening blocks (57) are symmetrically arranged about the width center axis of the fuselage (11); a clamping assembly (4) is arranged at one end of the first conveyor belt (3), and a straightening assembly (5) is arranged at the other end of the first conveyor belt (3).

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