Bottle cap defect detection equipment

Abstract

The utility model provides bottle cap defect detection equipment which comprises a rotating device for driving a bottle cap to rotate along the axial direction, a conveying device for conveying the bottle cap, a transferring device for transferring the bottle cap conveyed by the conveying device to the rotating device, a camera detection assembly arranged on the outer side of the rotating device, and a sensor detection assembly, the discharging device is used for collecting the detected bottle caps; the rotating device comprises a transparent rotating disc used for bearing the bottle caps and a driving assembly used for driving the transparent rotating disc to rotate in the axial direction. The camera detection assembly comprises a first camera used for detecting the inner side of the bottle cap, a second camera used for detecting the bottom face of the bottle cap, and a third camera used for detecting the periphery of the bottle cap. And the sensor detection assembly comprises a plurality of groups of 3D sensors and 3D laser sensors for detecting the bottle caps at different angles. According to the bottle cap defect detection device, high-precision, high-speed and full-automatic defect detection on bottle caps is achieved, and the bottle cap production quality and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bottle cap appearance detection, in particular to a bottle cap defect detection device. Background Art

[0002] Bottle caps are crucial components of food and beverage packaging, serving as the first point of contact for consumers. They maintain a tight seal around the contents, while also providing tamper-evident protection and enhanced safety. Therefore, they are widely used in bottled products and are a key component of bottle container packaging.

[0003] During the bottle cap manufacturing process, the overall appearance of the bottle cap needs to be inspected for defects to ensure the sealing and safety of the bottle cap.

[0004] However, the equipment used to detect bottle cap defects in the prior art is difficult to perform high-precision, high-speed, and fully automated defect detection on bottle caps, which reduces the quality and efficiency of bottle cap production.

[0005] In view of this, it is necessary to improve the equipment for detecting bottle cap defects in the prior art to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to disclose a bottle cap defect detection device, which is used to solve the many defects of the devices used to detect bottle cap defects in the prior art, especially to achieve high-precision, high-speed and fully automated defect detection of bottle caps, thereby improving the quality and efficiency of bottle cap production.

[0007] To achieve the above-mentioned object, the present invention provides a bottle cap defect detection device, comprising: a rotating device for driving the bottle caps to rotate axially, a conveying device for conveying the bottle caps, a transfer device for transferring the bottle caps conveyed by the conveying device to the rotating device, a camera detection component and a sensor detection component arranged outside the rotating device, and a discharge device for collecting the bottle caps after inspection;

[0008] The rotating device includes: a transparent turntable for supporting the bottle cap, and a driving assembly for driving the transparent turntable to rotate along the axial direction;

[0009] The camera detection assembly includes: a first camera for detecting the inner side of the bottle cap, a second camera for detecting the bottom surface of the bottle cap, and a third camera for detecting the outer periphery of the bottle cap;

[0010] The sensor detection component includes: several groups of 3D sensors and 3D laser sensors for detecting bottle caps at different angles.

[0011] As a further improvement of the present invention, the first camera, the second camera and the third camera are arranged in sequence along the rotation direction of the transparent turntable.

[0012] As a further improvement of the present invention, the 3D sensors and the 3D laser sensors are arranged in multiple groups in sequence along the rotation direction of the transparent turntable, and the 3D sensors and the 3D laser sensors are arranged on the inner and outer sides of the transparent turntable in radial directions opposite to each other.

[0013] As a further improvement of the present invention, the rotating device also includes: a pillar axially passing through the transparent turntable and radially separated from the transparent turntable, the pillar passing through one side of the transparent turntable and extending radially outward to form a support plate for mounting the 3D laser sensor.

[0014] As a further improvement of the present invention, the driving assembly includes: a first driving motor, a supporting plate coaxially sleeved on the outside of the pillar and configured at the bottom of the transparent turntable, a support fixed to the outside of the pillar, a transmission ring configured at the bottom of the supporting plate and rotatably connected to the support, and a transmission assembly controlled by the first driving motor to drive the transmission ring to rotate axially.

[0015] As a further improvement of the present invention, the rotating device also includes: a plurality of positioning columns arranged around the bottom of the support plate, and a ball movably connected to one end of the positioning columns close to the support plate and attached to the bottom surface of the support plate.

[0016] As a further improvement of the present invention, the transfer device includes: a support frame, a guide plate arranged on the support frame, a second drive motor arranged on the side of the support frame opposite to the guide plate, the output shaft of the second drive motor continuously passes through the support frame and the guide plate, a transmission rod arranged on the output shaft of the second drive motor passing through one end of the guide plate, a connecting rod controlled by the transmission rod to move back and forth between the conveying device and the rotating device, and a fixing member arranged on the connecting rod to drive the bottle cap to move from the conveying device to the rotating device.

[0017] As a further improvement of the present invention, the transmission rod is opened along its length direction to form a first guide groove, the guide plate is recessed to form a second guide groove, the connecting rod protrudes toward the guide plate to form a guide portion that passes through the first guide groove and extends to the second guide groove, the second drive motor drives the output shaft to rotate intermittently clockwise and counterclockwise, and synchronously drives the transmission rod to swing back and forth around the output shaft, the guide portion moves along the first guide groove and the second guide groove as the transmission rod swings, so as to drive the connecting rod to move back and forth between the transmission device and the rotating device.

[0018] As a further improvement of the present invention, the transfer device also includes: a guide block movably connected to the guide plate along the moving direction formed by the reciprocating movement of the connecting rod between the conveying device and the rotating device, and the guide block is constructed with a third guide groove for accommodating part of the connecting rod, so that the connecting rod can move longitudinally along the third guide groove during the reciprocating movement between the conveying device and the rotating device.

[0019] As a further improvement of the present invention, the unloading device includes: a first receiving frame for collecting non-defective bottle caps, a second receiving frame for collecting defective bottle caps, and two sets of air jet pipes for blowing non-defective and defective bottle caps into the first receiving frame and the second receiving frame respectively.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: the rotating device drives the bottle cap to rotate around the axis, and the bottle cap to be inspected is transported by the conveying device so that the bottle cap enters the inspection process smoothly and orderly; the transfer device is used to transfer the bottle cap to be inspected transported by the conveying device to the transparent turntable of the rotating device to realize automatic feeding and ensure that each bottle cap can be placed in a specific inspection position on the transparent turntable; the inside of the bottle cap is inspected by the first camera to ensure the sealing and surface quality of the inside of the bottle cap; the bottom of the bottle cap is inspected by the second camera to ensure the flatness and cleanliness of the bottom of the bottle cap; the outer periphery of the bottle cap is inspected by the third camera to ensure the shape and surface quality of the outer periphery of the bottle cap; the three-dimensional shape of the bottle cap is detected by the 3D sensor; tiny defects of the bottle cap, such as pits, protrusions, etc., are detected by the 3D laser sensor to ensure the surface quality of the bottle cap; the unloading device is used to collect the inspected bottle caps and distinguish between qualified and unqualified products. Through the coordinated work of the above-mentioned rotating device, conveying device, transfer device, camera detection component, sensor detection component and unloading device, the bottle cap defect detection equipment can achieve high-precision, high-speed, fully automated, and low-defective rate bottle cap detection, significantly improving the quality and efficiency of bottle cap production. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an overall schematic diagram of the bottle cap defect detection device disclosed in the present utility model;

[0022] Figure 2 is an overall schematic diagram of the rotating device;

[0023] Figure 3 A schematic diagram of a fixed part transferring bottle caps conveyed by a conveyor device to a transparent turntable;

[0024] Figure 4 This is a schematic diagram of the guide portion passing through the first guide groove and extending to the second guide groove. DETAILED DESCRIPTION

[0025] The present invention is described in detail below with reference to the various embodiments shown in the accompanying drawings. However, it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in this field based on these embodiments are all within the scope of protection of the present invention.

[0026] It is particularly important to note that in the following embodiments, the term "axial" refers to Figure 1 The direction indicated by the central axis P.

[0027] Please refer to Figures 1 to 4 A specific implementation of a bottle cap defect detection device 100 is disclosed.

[0028] Ginseng Figure 1 As shown, in this embodiment, the bottle cap defect detection equipment 100 includes: a rotating device 1 for driving the bottle cap 200 to rotate axially, a conveying device 2 for conveying the bottle cap 200, a transferring device 3 for transferring the bottle cap 200 conveyed by the conveying device 2 to the rotating device 1, a camera detection component and a sensor detection component arranged on the outside of the rotating device 1, and a unloading device 6 for collecting the bottle cap 200 after inspection; the rotating device 1 includes: a transparent turntable 11 for supporting the bottle cap 200, and a driving component 12 for driving the transparent turntable 11 to rotate axially; the camera detection component includes: a first camera 41 for detecting the inner side of the bottle cap 200, a second camera 42 for detecting the bottom surface of the bottle cap 200, and a third camera 43 for detecting the outer periphery of the bottle cap 200; the sensor detection component includes: several groups of 3D sensors 51 and 3D laser sensors 52 for detecting the bottle cap 200 at different angles.

[0029] The rotating device 1 drives the bottle cap 200 to rotate Figure 1The central axis P rotates in the direction indicated by the arrow P1. Specifically, the bottle caps 200 are supported by the transparent turntable 11, and the transparent turntable 11 is driven to rotate axially by the driving assembly 12 to drive the bottle caps 200 to move along the rotation direction of the transparent turntable 11. The conveying device 2 is used to convey the bottle caps 200 to be inspected so that the bottle caps 200 enter the inspection process smoothly and orderly. The transfer device 3 is used to transfer the bottle caps 200 to be inspected conveyed by the conveying device 2 to the transparent turntable 11 of the rotating device 1 to realize automated feeding and ensure that each bottle cap can be placed in a specific inspection position on the transparent turntable 11 for subsequent inspection. The camera inspection component includes a first camera 41, a second camera 42 and a third camera 43, which are used to capture images of different parts of the bottle cap 200 to inspect surface defects. Specifically, the first camera 41 inspects the inside of the bottle cap 200 to ensure its seal and surface quality (e.g., check for nicks or thread damage). The second camera 42 inspects the bottom of the bottle cap 200 to ensure its flatness and cleanliness (e.g., check for dirt). The third camera 43 inspects the outer periphery of the bottle cap 200 to ensure its shape and surface quality (e.g., check for vertical sidewall scratches, dirt, and shrinkage). The sensor inspection assembly includes several sets of 3D sensors 51 and 3D laser sensors 52, which are used to acquire three-dimensional information and precise dimensions of the bottle cap 200 and detect shape and dimensional defects. Specifically, the 3D sensor 51 inspects the 3D shape of the bottle cap (e.g., check for unsaturation, nicks, and burrs) to ensure that the overall shape and dimensions of the bottle cap 200 meet standards. The 3D laser sensor 52 detects minor defects in the bottle cap, such as pits and protrusions, to ensure its surface quality. The unloading device 6 is used to collect inspected bottle caps 200 and distinguish between qualified and unqualified products. Working in conjunction with the camera and sensor detection components, qualified and unqualified products are separated based on the inspection results, ensuring that unqualified products do not flow into the next process. The coordinated operation of the rotating device 1, conveying device 2, transfer device 3, camera and sensor detection components, and unloading device 6 enables the bottle cap defect inspection equipment 100 to achieve high-precision, high-speed, fully automated, and low-defective bottle cap inspection, significantly improving the quality and efficiency of bottle cap 200 production.

[0030] Ginseng Figure 1 As shown, in this embodiment, the transfer device 3 transfers the bottle cap 200 to the transparent turntable 11 with the opening facing upward. The first camera 41 and the third camera 43 are arranged above the transparent turntable 11, and the second camera 42 is arranged below the transparent turntable 11. The inner side and outer periphery of the bottle cap 200 can be effectively inspected by the first camera 41 and the third camera 43 above, while the bottom surface of the bottle cap 200 can be inspected by the second camera 42 below, ensuring that the first camera 41, the second camera 42, and the third camera 43 are all accurately aligned with the corresponding inspection locations.

[0031] Ginseng Figure 1 As shown, in this embodiment, the first camera 41, the second camera 42 and the third camera 43 are arranged along the rotation direction of the transparent turntable 11 (ie, Figure 1 By sequentially arranging the first camera 41, the second camera 42, and the third camera 43 along the rotation direction of the transparent turntable 11, it is possible to ensure that the bottle cap 200 passes through the detection area of ​​each camera in sequence during movement, thereby achieving sequential detection. This ensures that each camera can perform detailed detection of a specific part of the bottle cap during movement, thereby reducing detection blind spots and improving the comprehensiveness and accuracy of detection.

[0032] Ginseng Figure 1 As shown, in this embodiment, multiple groups of 3D sensors 51 and 3D laser sensors 52 are sequentially arranged along the rotation direction of the transparent turntable 11. The 3D sensors 51 and 3D laser sensors 52 are radially opposite each other on the inner and outer sides of the transparent turntable 11. By sequentially arranging multiple groups of 3D sensors 51 and 3D laser sensors 52 along the rotation direction of the transparent turntable 11, it is possible to ensure that the bottle cap 200 passes through multiple inspection points during its movement, ensuring that each inspection point can perform detailed three-dimensional inspection of the bottle cap, thereby reducing inspection blind spots, improving the comprehensiveness and accuracy of inspection, and achieving multi-angle and multi-position inspection. The 3D sensors 51 are arranged on the outside of the transparent turntable 11 and facing the outer circumference of the bottle cap 200, and are used to detect the shape and defects of the bottle cap's outer surface. The 3D laser sensors 52 are arranged on the inside of the transparent turntable 11 and facing the inside of the bottle cap 200, and are used to detect the shape and defects of the bottle cap's inner surface. This allows for simultaneous inspection of the inner and outer surfaces of the bottle cap, ensuring that both the inner and outer surfaces of the bottle cap 200 can be inspected simultaneously, thereby improving inspection efficiency and accuracy. Furthermore, the 3D sensors 51 and the 3D laser sensors 52 at different positions are used for detection in sequence to obtain multi-angle three-dimensional data of different parts of the bottle cap 200, thereby ensuring the accuracy and reliability of the detection results.

[0033] Ginseng Figure 1 and Figure 2 As shown, the rotating device 1 also includes a support 13 axially extending through the transparent turntable 11 and radially separated from the transparent turntable 11. The support 13 extends radially outward from one side of the transparent turntable 11 to form a support plate 14 for mounting the 3D laser sensor 52. The support 13 and support plate 14 provide a stable mounting platform for the 3D laser sensor 52, ensuring that the 3D laser sensor 52 remains stable during the inspection process. The support plate 14 extends radially outward to ensure that the 3D laser sensor 52 can accurately align with the bottle cap. During rotation, the transparent turntable 11 does not contact the support 13 and support plate 14, ensuring smooth rotation of the transparent turntable 11 and avoiding mechanical interference.

[0034] Ginseng Figure 1 and Figure 2 As shown, the drive assembly 12 includes: a first drive motor 121, a support plate 122 coaxially mounted on the outside of the support column 13 and disposed at the bottom of the transparent turntable 11, a support 123 fixed to the outside of the support column 13, a transmission ring 124 disposed at the bottom of the support plate 122 and rotatably connected to the support 123, and a transmission assembly controlled by the first drive motor 121 to drive the transmission ring 124 in axial rotation. The first drive motor 121 drives the transmission ring 124 in axial rotation through the transmission assembly, thereby driving the support plate 122 and the transparent turntable 11 to rotate. The support plate 122 is coaxially mounted on the outside of the support column 13 and does not contact the support column 13 or the support plate 14 during rotation. This avoids friction and interference between the support plate 122, the support column 13, and the support plate 14, thereby ensuring smooth rotation of the transparent turntable 11 and the normal operation of the 3D laser sensor 52. Exemplarily, the transmission assembly (not shown) can be configured as a gear ring (not shown) sleeved on the outside of the transmission ring 124, and a gear (not shown) configured on the rotating shaft of the first drive motor 121. The gear is engaged with the gear ring to drive the rotating shaft through the first drive motor 121 to drive the gear to rotate, so as to drive the transmission ring 124 and the support plate 122 to rotate through the gear ring, thereby driving the transparent turntable 11 to rotate axially.

[0035] Ginseng Figure 2 As shown, the rotating device 1 also includes: a plurality of positioning posts 17 arranged around the bottom of the support plate 122, and balls 18 movably connected to one end of the positioning posts 17 near the support plate 122 and in contact with the bottom surface of the support plate 122. The balls 18 are in contact with the bottom surface of the support plate 122. The rolling motion of the balls 18 makes the support plate 122 rotate more smoothly and steadily, thereby reducing vibration and noise caused by friction. In addition, the high-precision rolling motion of the balls 18 can reduce deviations during the rotation of the transparent turntable 11, ensuring more uniform and stable rotation of the transparent turntable 11, thereby improving the accuracy of detection.

[0036] Ginseng Figure 1 and Figure 3As shown, the transfer device 3 includes: a support frame 31, a guide plate 32 configured on the support frame 31, a second drive motor 33 configured on the side of the support frame 31 opposite to the guide plate 32, an output shaft 331 of the second drive motor 33 continuously extending through the support frame 31 and the guide plate 32, a transmission rod 34 configured on the output shaft 331 of the second drive motor 33 extending through one end of the guide plate 32, a connecting rod 35 controlled by the transmission rod 34 to move back and forth between the conveyor 2 and the rotating device 1, and a fixing member 36 (e.g., a vacuum suction cup) configured on the connecting rod 35 to drive the bottle caps from the conveyor 2 to the rotating device 1. The second drive motor 33 drives the output shaft 331 to rotate the transmission rod 34, thereby driving the connecting rod 35 to move back and forth between the conveyor 2 and the rotating device 1. The fixing member 36 adsorbs and fixes the bottle caps 200, thereby transferring the bottle caps 200 conveyed by the conveyor 2 to the transparent turntable 11, thereby ensuring the accurate position of the bottle caps 200 during the transfer process and avoiding detection errors caused by position deviation.

[0037] Ginseng Figure 3 and Figure 4 As shown, the transmission rod 34 is provided with a first guide groove 341 along its length, the guide plate 32 is recessed to form a second guide groove 321, and the connecting rod 35 protrudes toward the guide plate 32 to form a guide portion 351 that passes through the first guide groove 341 and extends to the second guide groove 321. The second drive motor 33 drives the output shaft 331 to rotate clockwise and counterclockwise intermittently, and simultaneously drives the transmission rod 34 to swing back and forth around the output shaft 331. The guide portion 351 moves along the first guide groove 341 and the second guide groove 321 as the transmission rod 34 swings, thereby driving the connecting rod 35 to move back and forth between the conveying device 2 and the rotating device 1. The second drive motor 33 drives the output shaft 331 clockwise (along the Figure 3 The second drive motor 33 drives the output shaft 331 to rotate in a counterclockwise direction (in the direction indicated by the arrow Q2 in the middle) to drive the transmission rod 34 to swing, thereby driving the guide portion 351 to slide in the first guide groove 341 and the second guide groove 321 until the guide portion 351 slides to the limit end 3211 of the second guide groove 321 (the state where the guide portion 351 slides to the limit end 3211 is not shown in the figure), thereby causing the connecting rod 35 to drive the fixing member 36 to adsorb and fix the bottle cap 200 conveyed by the conveying device 2, and then the second drive motor 33 drives the output shaft 331 to rotate counterclockwise (in the direction indicated by the arrow Q2 in the middle). Figure 3 The guide portion 351 slides between the first guide groove 341 and the second guide groove 321 until the guide portion 351 slides to the other end of the second guide groove 321 away from the limiting end 3211 (as shown in the direction of the arrow Q1 in the middle). Figure 3 ), so that the connecting rod 35 drives the fixing member 36 to transfer the bottle cap 200 fixed by adsorption to the transparent turntable 11, and cancels the fixing member 36 to fix the bottle cap 200, so that the bottle cap 200 is placed on the transparent turntable 11.

[0038] The second drive motor 33 drives the output shaft 331 to rotate intermittently clockwise and counterclockwise, thereby driving the transmission rod 34 to swing back and forth around the output shaft 331. The guide portion 351 moves along the first guide groove 341 and the second guide groove 321 as the transmission rod 34 swings, thereby driving the connecting rod 35 and the fixing member 36 to move back and forth between the conveying device 2 and the rotating device 1, thereby realizing intermittent transfer of the bottle caps 200, thereby improving the controllability and accuracy of the transfer of the bottle caps 200.

[0039] Ginseng Figure 3 and Figure 4 As shown, the transfer device 3 also includes: a moving direction formed by the back-and-forth movement between the conveying device 2 and the rotating device 1 along the connecting rod 35 (ie, Figure 3 The guide block 37 is movably connected to the guide plate 32 (in the direction indicated by the double-headed arrow X). The guide block 37 is constructed with a third guide groove 371 that partially accommodates the engaging rod 35. This allows the engaging rod 35 to move longitudinally along the third guide groove 371 during the reciprocating movement between the conveyor 2 and the rotating device 1. As the guide portion 351 slides within the second guide groove 321, it drives the engaging rod 35 to move longitudinally and in the direction indicated by the double-headed arrow X. During the longitudinal movement of the engaging rod 35, the third guide groove 371 limits the longitudinal movement path of the engaging rod 35, thereby preventing the engaging rod 35 from swinging. Furthermore, as the engaging rod 35 moves in the direction indicated by the double-headed arrow X, it simultaneously drives the guide block 37 to move along the guide plate 32, thereby further stabilizing the position of the bottle caps 200 during the transfer process and preventing the bottle caps from falling or shifting due to swinging or vibration.

[0040] Ginseng Figure 1 As shown, the unloading device 6 includes a first receiving frame 61 for collecting non-defective bottle caps, a second receiving frame (not shown) for collecting defective bottle caps, and two sets of air jets for blowing non-defective and defective bottle caps into the first receiving frame 61 and the second receiving frame, respectively. The air jets include a first air jet 62 and a second air jet (not shown). The first air jet 62 blows non-defective bottle caps into the corresponding first receiving frame 61, while the second air jet blows defective bottle caps into the corresponding second receiving frame. This ensures that qualified and defective bottle caps can be quickly and accurately separated, improving the efficiency of bottle cap sorting. The automatic control of the air jets eliminates the need for manual intervention during the sorting and collection process, reducing errors and labor intensity associated with manual operation and improving production continuity and accuracy.

[0041] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0043] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A bottle cap defect detection device, characterized in that: include: A rotating device for driving the bottle caps to rotate axially, a conveying device for conveying the bottle caps, a transferring device for transferring the bottle caps conveyed by the conveying device to the rotating device, a camera detection component and a sensor detection component arranged outside the rotating device, and a discharge device for collecting the bottle caps after inspection; The rotating device includes: a transparent turntable for supporting the bottle cap, and a driving assembly for driving the transparent turntable to rotate along the axial direction; The camera detection assembly includes: a first camera for detecting the inner side of the bottle cap, a second camera for detecting the bottom surface of the bottle cap, and a third camera for detecting the outer periphery of the bottle cap; The sensor detection component includes: several groups of 3D sensors and 3D laser sensors for detecting bottle caps at different angles.

2. The bottle cap defect detection device according to claim 1, characterized in that: The first camera, the second camera and the third camera are sequentially arranged along the rotation direction of the transparent turntable.

3. The bottle cap defect detection device according to claim 1, characterized in that: The 3D sensors and the 3D laser sensors are sequentially arranged in multiple groups along the rotation direction of the transparent turntable. The 3D sensors and the 3D laser sensors are radially oppositely arranged on both sides of the transparent turntable.

4. The bottle cap defect detection device according to claim 3, characterized in that: The rotating device further includes: a pillar axially penetrating the transparent turntable and radially separated from the transparent turntable, wherein the pillar penetrates one side of the transparent turntable and extends radially outward to form a support plate for mounting the 3D laser sensor.

5. The bottle cap defect detection device according to claim 4, characterized in that: The driving assembly includes: a first driving motor, a supporting plate coaxially sleeved on the outside of the pillar and configured at the bottom of the transparent turntable, a support fixed to the outside of the pillar, a transmission ring configured at the bottom of the supporting plate and rotatably connected to the support, and a transmission assembly controlled by the first driving motor to drive the transmission ring to rotate axially.

6. The bottle cap defect detection device according to claim 5, characterized in that: The rotating device further comprises: a plurality of positioning posts arranged around the bottom of the supporting plate, and a ball movably connected to one end of the positioning posts close to the supporting plate and in contact with the bottom surface of the supporting plate.

7. The bottle cap defect detection device according to claim 1, characterized in that: The transfer device includes: a support frame, a guide plate arranged on the support frame, a second drive motor arranged on the side of the support frame opposite to the guide plate, an output shaft of the second drive motor continuously passing through the support frame and the guide plate, a transmission rod arranged on the output shaft of the second drive motor passing through one end of the guide plate, a connecting rod controlled by the transmission rod to move back and forth between the conveying device and the rotating device, and a fixing member arranged on the connecting rod to drive the bottle cap to move from the conveying device to the rotating device.

8. The bottle cap defect detection device according to claim 7, characterized in that: The transmission rod is provided with a first guide groove along its length direction, the guide plate is recessed to form a second guide groove, the connecting rod protrudes toward the guide plate to form a guide portion that passes through the first guide groove and extends to the second guide groove, the second drive motor drives the output shaft to rotate intermittently clockwise and counterclockwise, and synchronously drives the transmission rod to swing back and forth around the output shaft, the guide portion moves along the first guide groove and the second guide groove as the transmission rod swings, so as to drive the connecting rod to move back and forth between the transmission device and the rotating device.

9. The bottle cap defect detection device according to claim 7, characterized in that: The transfer device also includes: a guide block movably connected to the guide plate along the moving direction formed by the reciprocating movement of the connecting rod between the conveying device and the rotating device, and the guide block is constructed with a third guide groove for accommodating part of the connecting rod so that the connecting rod can move longitudinally along the third guide groove during the reciprocating movement between the conveying device and the rotating device.

10. The bottle cap defect detection device according to claim 1, characterized in that: The unloading device includes: a first receiving frame for collecting non-defective bottle caps, a second receiving frame for collecting defective bottle caps, and two sets of air jets for blowing non-defective and defective bottle caps into the first receiving frame and the second receiving frame respectively.

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