Product defect detection device

Abstract

The utility model provides a product defect detection device. The device comprises a rack; the turntable mechanism is arranged on the rack; the plurality of material rods are arranged on the turntable mechanism, the material rods are used for fixing products on the material rods, and the turntable mechanism is used for driving the material rods to convey the products in a preset direction and driving the products to rotate relative to the turntable mechanism; the first visual inspection mechanism is arranged on the rack and is used for carrying out defect detection on the outer surface of the product fixed on the material rod; and the second visual inspection mechanism is used for performing defect detection on the inner surface of the qualified product detected by the first visual inspection mechanism. The first visual detection mechanism and the second visual detection mechanism are arranged to detect the inside and outside of a product, so that the quality of the product is ensured, all the mechanisms cooperate to work, classification and output are performed while detection is performed, and compared with a traditional manual detection mode, more manpower is saved, and through the arrangement of the rotary table mechanism and the material rod, the detection efficiency is improved. And discharging of products is facilitated.

Description

Technical Field

[0001] This application relates to a testing device, and more particularly to a product defect testing device. Background Technology

[0002] In modern industrial manufacturing, product quality is an important manifestation of a company's core competitiveness, especially in industries such as pharmaceuticals, food, cosmetics, and daily chemical products. The packaging containers (such as bottles, tubes, and cans) of these products are not only an external manifestation of the product's function, but also a key factor in brand image and consumer trust.

[0003] In the product manufacturing process, a certain number of defective products are inevitable. These defective products often have one or more defective characteristics. To ensure the safety, reliability, and market competitiveness of products, defect detection has become an indispensable part of the production process, allowing for the individual selection of these defective products from the production line based on their defective characteristics.

[0004] Currently, the selection of defective products is usually done manually, meaning that products are manually inspected for defects. If defects are found, the product is judged as defective. However, this manual inspection method is time-consuming, and because production lines have high production efficiency and a large number of products requiring quality inspection, a large number of people are needed to complete the inspection. This results in high labor costs, low inspection efficiency, and a high risk of missed inspections, leading to problems such as insufficient quality of delivered products. Utility Model Content

[0005] This application provides a product defect detection device to solve the problems existing in related technologies. The technical solution is as follows:

[0006] This application provides a product defect detection device, including:

[0007] frame;

[0008] The turntable mechanism is mounted on the frame.

[0009] Multiple feed rods are mounted on a turntable mechanism. The feed rods are used to fix the product on them, and the turntable mechanism is used to drive the feed rods to convey the product along a preset direction and drive the product to rotate relative to the turntable mechanism.

[0010] The first vision inspection unit is mounted on the frame and is used to inspect the outer surface of the product fixed on the material bar for defects.

[0011] The second vision inspection agency is used to inspect the inner surface of products that have passed the inspection by the first vision inspection agency for defects.

[0012] In one implementation,

[0013] The turntable mechanism includes:

[0014] Support rods are mounted on the frame;

[0015] A rotating disk is rotatably mounted on a support rod, and multiple material rods are arranged in a circular array around the support rod on the rotating disk;

[0016] The first driving component is installed inside the frame and is used to drive the rotating disk to rotate relative to the support rod, so as to drive the material rod to transport the product to the first vision inspection mechanism for defect detection.

[0017] Multiple second driving components are arranged on the rotating disk in a one-to-one correspondence with multiple material rods. The second driving components are used to drive the material rods to rotate relative to the rotating disk so that the first vision inspection mechanism can perform defect inspection on the outer surface of the product.

[0018] In one implementation,

[0019] The turntable mechanism also includes:

[0020] Multiple air nozzles are provided, and multiple air nozzles are respectively set to correspond one-to-one with multiple material rods. Each material rod has a first air hole at one end and a second air hole at the other end. A fluid channel is provided inside the material rod. The first air hole is connected to the second air hole through the fluid channel. The air nozzle is connected to the first air hole of the corresponding material rod. The air nozzle has an air intake state and an air blowing state.

[0021] When the air nozzle is in the suction state, the second air hole on the corresponding material rod generates negative pressure to adsorb and fix the product on the material rod.

[0022] When the air nozzle is in the blowing state, air is released from the second air hole on the corresponding material rod to make the product detach from the material rod.

[0023] In one implementation,

[0024] The turntable mechanism also includes:

[0025] Multiple pneumatic directional valves are provided; each pneumatic directional valve is configured to correspond one-to-one with a multiple air nozzle. The pneumatic directional valve is used to connect to the corresponding air nozzle and air source to control the air nozzle to switch to the suction state or the blowing state.

[0026] In one implementation,

[0027] The turntable mechanism also includes:

[0028] Multiple sealing sleeves are arranged on the rotating disk in a one-to-one correspondence with multiple material rods, and the material rods are rotatably connected to the corresponding sealing sleeves.

[0029] In one implementation,

[0030] The turntable mechanism also includes:

[0031] Multiple reversing drive components are provided, and each of the multiple reversing drive components is respectively configured to correspond one-to-one with multiple pneumatic reversing valves; wherein, the pneumatic reversing valve has a first mode and a second mode, and the reversing drive components are used to switch the pneumatic reversing valve to the first mode or the second mode.

[0032] When the pneumatic reversing valve is in the first mode, the air nozzle is in the intake state;

[0033] When the pneumatic reversing valve is in the second mode, the air nozzle is in the blowing state.

[0034] In one implementation, it further includes:

[0035] Feeding conveyor line: The feeding conveyor line is used to transport products to the loading station so that the products are loaded onto the feeding rod;

[0036] The discharge conveyor line is used to receive products that have passed the inspection of the first visual inspection agency and transport the products to the second visual inspection agency so that the products can be discharged after passing the inspection of the second visual inspection agency; wherein, the second visual inspection agency is located on one side of the discharge conveyor line.

[0037] In one implementation, it further includes:

[0038] The cleaning mechanism includes a cleaning roller and a third drive component. The cleaning roller and the third drive component are rotatably connected. The cleaning mechanism is sequentially arranged before the process of the first vision inspection mechanism along a preset conveying direction. The third drive component is used to drive the cleaning roller to contact the outer surface of the product conveyed to the cleaning station in order to remove dust from the outer surface of the product.

[0039] In one implementation, it further includes:

[0040] The feeding mechanism is used to push the products on the feeding station onto the material bar.

[0041] The unloading mechanism is used to unload products that have passed the inspection of the first vision inspection agency from the material bar to the discharge conveyor line.

[0042] The first rejection mechanism is used to unload products that fail the inspection by the first visual inspection mechanism from the material bar to the first defective product output port; wherein, the first defective product output port is sequentially set after the process of the first visual inspection mechanism along the conveying direction of the material bar, and the first rejection mechanism moves synchronously with the unloading mechanism.

[0043] The second rejection mechanism is used to output products that fail the inspection by the second visual inspection mechanism from the second defective product output port. The second defective product output port is sequentially arranged after the process of the second visual inspection mechanism along the conveying direction of the discharge conveyor line.

[0044] In one implementation,

[0045] The first vision inspection mechanism includes a three-axis adjustment unit, a first imaging unit, and a first light source unit. The first imaging unit is mounted on the three-axis adjustment unit, which is mounted on a frame. The three-axis adjustment unit is used to adjust the imaging position of the first imaging unit. The imaging direction of the first imaging unit is set towards the outer surface of the product to acquire an image of the outer surface of the product and send it to the inspection module for defect detection. The first light source unit is mounted on the frame or the three-axis adjustment unit and is used to illuminate the outer surface of the product captured by the first imaging unit.

[0046] The second visual inspection mechanism includes a second imaging unit, a sliding unit, and a second light source unit. The second imaging unit is installed on one side of the discharge conveyor line via the first sliding unit. The imaging direction of the second imaging unit is set towards the opening of the product to obtain an image of the inner surface of the product and send it to the inspection module for defect detection. The second light source unit is used to illuminate the inner surface of the product captured by the second imaging unit.

[0047] The advantages or beneficial effects of the above technical solutions include at least the following:

[0048] By setting up a first-vision inspection mechanism and a second-vision inspection mechanism, defects are detected on the exterior and interior of the product, thereby ensuring product quality. Through the coordinated work of various mechanisms, while inspecting the product, qualified and unqualified products can be classified and output. Compared with the traditional manual inspection method, it saves more manpower. The turntable mechanism and material bar setting eliminate the need for manual flipping during the inspection process and facilitates the unloading of the product.

[0049] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of this application will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0050] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0051] Figure 1 This is a structural entity diagram of this application;

[0052] Figure 2 This is a schematic diagram of the internal structure of the rack;

[0053] Figure 3 This is a schematic diagram of the turntable mechanism;

[0054] Figure 4 This is an enlarged structural diagram of the turntable mechanism.

[0055] Reference numerals: 1. Feeding conveyor line;

[0056] 2. Feeding mechanism;

[0057] 3. Turntable mechanism; 31. Turntable; 32. Support rod; 33. Material rod; 331. Second air hole; 34. First driving component; 35. Second driving component; 36. Pneumatic reversing valve; 37. Reversing driving component; 38. Air nozzle; 39. Sealing sleeve;

[0058] 4. Cleaning services;

[0059] 5. First visual inspection agency;

[0060] 6. First rejection mechanism;

[0061] 7. Feeding mechanism;

[0062] 8. Discharge conveyor line;

[0063] 9. Display screen;

[0064] 10. Second vision inspection agency. Detailed Implementation

[0065] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0066] Figures 1-4 This diagram illustrates a structural diagram of a product defect detection device according to an embodiment of this application. Figures 1-4 As shown, the detection device may include:

[0067] frame;

[0068] Turntable mechanism 3 is mounted on the frame;

[0069] Multiple feed rods 33 are arranged on the turntable mechanism 3. The feed rods 33 are used to fix the product on them, and the turntable mechanism 3 is used to drive the feed rods 33 to convey the product along a preset direction and drive the product to rotate relative to the turntable mechanism 3.

[0070] First vision inspection mechanism 5 is mounted on the frame and is used to inspect the outer surface of the product fixed on the material bar 33 for defects.

[0071] The second vision inspection unit 10 is used to inspect the inner surface of the product that has passed the inspection of the first vision inspection unit 5 for defects.

[0072] In this embodiment, during operation, products are fed one by one onto the material bar 33 of the turntable mechanism 3. The turntable mechanism 3 operates, causing the products on the material bar 33 to move sequentially to the first visual inspection mechanism 5 for defect detection. If the detection result is no defects (i.e. the product is qualified), the turntable mechanism 3 unloads the qualified product, and the unloading mechanism 7 unloads the qualified product to the discharge conveyor line 8. The second visual inspection mechanism 10 installed on one side of the discharge conveyor line 8 performs defect detection on the internal surface of the product. After the detection is completed, the product is conveyed to the next station or rejected according to the detection result.

[0073] By setting up the first visual inspection mechanism 5 and the second visual inspection mechanism 10, the product is inspected twice to ensure product quality. The various mechanisms work together to inspect the product and, based on the inspection results, classify and output qualified and unqualified products through the first rejection mechanism 6 and the unloading mechanism 7. This method saves more manpower than the traditional manual inspection method. The turntable mechanism 3 and the material bar 33 eliminate the need for manual flipping during the inspection process and facilitate product unloading.

[0074] like Figures 2-4 As shown, in one embodiment,

[0075] Turntable mechanism 3 includes:

[0076] Support rod 32, mounted on the frame;

[0077] A rotating disk 31 is rotatably mounted on a support rod 32, and multiple material rods 33 are arranged in an array along the circumference of the support rod 32;

[0078] The first driving component 34 is disposed inside the frame. The first driving component 34 is used to drive the rotating disk 31 to rotate relative to the support rod 32, so as to drive the material rod 33 to transport the product to the first vision inspection mechanism 5 for defect detection.

[0079] Multiple second driving elements 35 are respectively arranged on the rotating disk 31 in a one-to-one correspondence with multiple material rods 33. The second driving elements 35 are used to drive the material rods 33 to rotate relative to the rotating disk 31 so that the first vision inspection mechanism 5 can perform defect inspection on the outer surface of the product.

[0080] In this embodiment, multiple material rods 33 are arranged in a circular array along the support rod 32. A rotating disk 31 is rotatably mounted on the support rod 32. The rotating disk 31 is driven by a first driving member 34, thereby causing the rotating disk 31 to rotate relative to the support rod 32. A second driving member 35 drives the material rods 33 to rotate, thereby causing the product to rotate. This enables the product on the material rods 33 to be transported along a preset direction to the first visual inspection mechanism 5 for visual inspection without the need for manual flipping.

[0081] like Figures 2-4 As shown, in one embodiment,

[0082] Turntable mechanism 3 also includes:

[0083] Multiple air nozzles 38 are respectively and corresponding to multiple material rods 33 on the rotating disk 31. Each material rod 33 has a first air hole at one end and a second air hole 331 at the other end. The material rod 33 is provided with a fluid channel. The first air hole is connected to the second air hole 331 through the fluid channel. The air nozzle 38 is connected to the first air hole of the corresponding material rod 33. The air nozzle 38 has an air intake state and an air blowing state.

[0084] When the air nozzle 38 is in the suction state, the second air hole 331 on the corresponding material rod 33 generates negative pressure to adsorb and fix the product on the material rod 33.

[0085] When the air nozzle 38 is in the blowing state, the second air hole 331 on the corresponding material rod 33 releases air to make the product detach from the material rod 33.

[0086] In this embodiment, by setting an air nozzle 38 corresponding to the material rod 33, since the first air hole, fluid channel and second air hole 331 of the material rod 13 form an airflow path, when the product is fed onto the material rod 13, the product is fitted onto the second air hole 131. During operation, when the air nozzle 38 is in the suction state, gas is drawn into the airflow channel through the air nozzle 38, so that the second air hole 331 on the corresponding material rod 33 generates negative pressure, thereby adsorbing and fixing the product onto the material rod 33, thus ensuring stable delivery of the product, and when it is delivered to the preset station, so that the product can be stably cleaned, inspected and processed; or when the air nozzle 38 is in the blowing state, the airflow passes through the air nozzle 38, enters the fluid channel through the first air hole, and finally exits through the second air hole 331, so as to blow the product fitted onto the material rod 13 away from the material rod 33, thereby detaching the product from the material rod 33, ensuring stable product feeding;

[0087] Furthermore, a second air hole 331 is provided at the end of the material rod 33 and on the rod body of the material rod 33 to enhance the adsorption or blowing force of the material rod 33 on the product.

[0088] like Figures 2-4 As shown, in one embodiment,

[0089] Turntable mechanism 3 also includes:

[0090] Multiple pneumatic reversing valves 36 are provided on the rotating disk 31 in a corresponding manner with multiple air nozzles 38. The pneumatic reversing valves 36 are used to connect with the corresponding air nozzles 38 and air sources to control the air nozzles 38 to switch to the suction state or the blowing state.

[0091] In this embodiment, the number of air nozzles 38 and pneumatic reversing valves 36 corresponds to the number of material rods 33. The working state of the air nozzles 38 is switched by the pneumatic reversing valves 36, thereby controlling the flow direction of the gas through the airflow channel in the material rod 33, so as to fix the product on the material rod 33 or detach it from the material rod 33.

[0092] like Figures 2-4 As shown, in one embodiment,

[0093] Turntable mechanism 3 also includes:

[0094] Multiple sealing sleeves 39 are respectively and corresponding to multiple material rods 33 on the rotating disk 31, and the material rods 33 are rotatably sleeved with the corresponding sealing sleeves 39.

[0095] In this embodiment, the sealing sleeve 39 is mounted on the rotating disk 31 by fasteners, and the material rod 33 is rotatably sleeved with the corresponding sealing sleeve 39, thereby ensuring that the material rod 33 can rotate relative to the rotating disk 31 when the second driving component is working.

[0096] If necessary, the sealing sleeve 39 may be equipped with a bearing to rotate and engage with the material rod 33 via the bearing.

[0097] Furthermore, a cavity is formed between the sealing sleeve 39 and the corresponding material rod 33, and the air nozzle 38 is connected to the first air hole of the material rod 33 through the cavity.

[0098] In this embodiment, since the sealing sleeve 39 and the corresponding material rod 33 together form a cavity, and the air nozzle 38 communicates with the first air hole of the material rod 33 through the cavity, the sealing between the air nozzle 38 and the first air hole of the material rod 33 is guaranteed, and air leakage is avoided, so that when the material rod 33 rotates, the product can still be stably fixed on the material rod 33 or stably detached from the material rod 33.

[0099] As needed, the sealing sleeve 39 is provided with at least two sealing rings, which are fitted onto the material rod 33 to form a cavity between the two sealing rings. The first air hole is located between the two sealing rings. The rotating disk 31 is provided with a mounting hole for mounting the air nozzle 38. The sealing sleeve 39 is provided with a through hole communicating with the mounting hole, which is located between the two sealing rings. The air nozzle 38 communicates with the cavity through the mounting hole and the through hole, and then communicates with the first air hole. At least two bearings can be provided, and the two sealing rings are located between the two bearings, thereby ensuring that the material rod 33 is rotatably connected to the sealing sleeve through the bearings. The cavity formed by the sealing sleeve 39 and the corresponding material rod 33, located between the two sealing rings, ensures the sealing between the air nozzle 38 and the first air hole of the material rod 33, improving the working stability.

[0100] like Figures 2-4 As shown, in one embodiment,

[0101] Turntable mechanism 3 also includes:

[0102] Multiple reversing drive components 37 are respectively and correspondingly arranged on the rotating disk 31 with multiple pneumatic reversing valves 36; wherein, the pneumatic reversing valve 36 has a first mode and a second mode, and the reversing drive components 37 can be used to switch the pneumatic reversing valve 36 to the first mode or the second mode.

[0103] When the pneumatic reversing valve 36 is in the first mode, the air nozzle 38 is in the intake state;

[0104] When the pneumatic reversing valve 36 is in the second mode, the air nozzle 38 is in the blowing state.

[0105] In this embodiment, by setting the reversing drive 37, when the material rod 33 is conveyed to the unloading station and the defective product rejection station, the reversing drive 37 switches the working mode of the pneumatic reversing valve 36 to the second mode and switches the air nozzle 18 to the blowing state, thereby blowing the product on the material rod 33 away from the material rod 33, so as to achieve the effects of product unloading and product rejection.

[0106] When the pneumatic reversing valve 36 is in the first mode, the air nozzle 18 is switched to the suction state, so that the second air hole 331 of the material rod 33 generates negative pressure, thereby adsorbing and fixing the product onto the material rod 33. When the pneumatic reversing valve 36 is in the second mode, it can supply air to the air nozzle 38 and output it through the second air hole 331, so that the product on the material rod 33 is detached from the material rod 33. This, in conjunction with the push rod on the loading mechanism 2 and the stop rod on the unloading mechanism 7, completes the loading and unloading process.

[0107] During operation, when the product is fed onto the feed rod 33, the air source starts working, and the corresponding pneumatic reversing valve 36 is in the first mode, switching the air nozzle 38 to the suction state so that the second air hole 331 generates negative pressure, thereby adsorbing and fixing the product onto the feed rod 33. The first driving component 34 works to drive the rotating disk 31 to rotate, causing the feed rod 33 and the product on the feed rod 33 to move sequentially along the circumference of the rotating disk 31 to the dust removal or shooting station. At this time, the second driving component 35 connected to the feed rod 33 works to drive the feed rod 33 to rotate, thereby causing the product to rotate, thereby realizing dust removal and visual inspection of the product on the feed rod 33.

[0108] After the inspection is completed, if a defect is detected in the product, the rotation angle of the first drive unit 34 or the rotation angle of the first drive unit 34 driving the rotating disk 31 is used to determine that the product has reached the defective product rejection station. Then, the working mode of the pneumatic reversing valve 36 is switched to the second mode by the reversing drive unit 37, and the air nozzle 38 is switched to the blowing state, so as to blow the product on the material rod 33 away from the material rod 33 and achieve the effect of product rejection.

[0109] If a defect is detected in the product, after the product arrives at the unloading station by the rotation angle of the first drive component 34 / rotary disk 31, the working mode of the pneumatic reversing valve 36 is switched to the second mode by the reversing drive component 37, and the air nozzle 38 is switched to the blowing state, so as to blow the product on the material rod 33 away from the material rod 33 and achieve the effect of unloading the product.

[0110] It should be noted that the frame also has a material unloading station and a defective product rejection station. The material unloading station corresponds to the position of the material unloading mechanism 7, and the defective product rejection station corresponds to the first rejection mechanism 6.

[0111] like Figures 1-2 As shown, in one embodiment, it further includes:

[0112] Feeding conveyor line 1 is used to transport products to the loading station so that the products are loaded onto the material bar 33;

[0113] The discharge conveyor line 8 is used to receive products that have passed the inspection of the first visual inspection agency 5 and to transport the products to the second visual inspection agency 10 for inspection. After passing the inspection of the second visual inspection agency 10, the products are discharged. The second visual inspection agency 10 is located on one side of the discharge conveyor line 8.

[0114] In this embodiment, both the feeding conveyor line 1 and the discharging conveyor line 8 are common conveyor belt structures on the market. They are driven by a motor and a sprocket. The feeding conveyor line 1 transports the material to the loading mechanism 2. After inspection, qualified products are unloaded onto the discharging conveyor line 8. The second vision inspection mechanism 10 performs a second inspection (internal inspection) on the qualified products on the discharging conveyor line 8 to ensure product quality.

[0115] like Figures 1-2 As shown, in one embodiment, it further includes:

[0116] The cleaning mechanism 4 includes a cleaning roller and a third drive member. The cleaning roller and the third drive member are rotatably connected. The cleaning mechanism 4 is sequentially arranged before the process of the first vision inspection mechanism 5 along a preset conveying direction. The third drive member is used to drive the cleaning roller to contact the outer surface of the product conveyed to the cleaning station in order to remove dust from the outer surface of the product.

[0117] In this embodiment, the product is conveyed to the feeding mechanism 2 via the feeding conveyor line 1. The feeding mechanism 2 feeds the product one by one onto the material bar 33 of the turntable mechanism 3. The turntable mechanism 3 works, driving the product on the material bar 33 to move sequentially to the cleaning mechanism 4 (such as dust removal) for pre-processing. After the pre-processing is completed, the product is inspected for defects by the first vision inspection mechanism 5.

[0118] like Figure 2 As shown, in one embodiment, it further includes:

[0119] Display screen 9 is mounted on the rack.

[0120] In this embodiment, the display screen 9 is connected to the central control system of the detection device, and the display screen 9 can be used to monitor the internal operation of the detection device and / or monitor and view the detection results.

[0121] like Figures 1-4 As shown, in one embodiment, it further includes:

[0122] The feeding mechanism 2 includes a second sliding unit, a material placement block, and a push rod. The second sliding unit and the material placement block are mounted on the frame. The feeding station is set on the material placement block. The push rod is connected to the second sliding unit. The second sliding unit is used to drive the push rod to move back and forth along the axis of the material rod 33 at the feeding station to push the product at the feeding station onto the material rod 33. Furthermore, the material placement block can also be provided with a positioning part to position the product at the feeding station and prevent it from shifting, thereby ensuring that the push rod can accurately and stably perform the pushing work on the product. The positioning part can be an air hole. One end of the air hole is connected to an external air source or vacuum equipment. When the product is conveyed to the feeding station, the external air source or vacuum equipment works, and the other end of the air hole generates negative pressure to stably adsorb the product on the feeding station.

[0123] The unloading mechanism 7 includes a third sliding unit, an unloading conveying unit, and an unloading stop bar. The third sliding unit and the unloading conveying unit are mounted on the frame. The unloading stop bar is connected to the third sliding unit. The third sliding unit is used to drive the unloading stop bar to move back and forth along the axis of the material rod 33 on the unloading conveying unit, so that the unloading stop bar and the turntable mechanism 3 work together to unload the products that have passed the inspection of the first vision inspection mechanism 5 from the material rod 33 to the unloading conveying unit. The unloading conveying unit is used to transport the products to the discharge conveyor line 8.

[0124] The first rejection mechanism 6 includes a defective product stop bar and a first defective product output port. The defective product stop bar is mounted on a third sliding unit, which drives the defective product stop bar to move back and forth along the axis of the material rod 33 at the first defective product output port, so that the unloading stop bar and the turntable mechanism 3 work together to unload and discharge products that fail the inspection by the first vision inspection mechanism 5 from the material rod 33 to the first defective product output port; wherein, the defective product stop bar and the unloading stop bar move synchronously.

[0125] The second rejection mechanism includes a rejection unit and a second defective product output port. The defective product output port is sequentially arranged after the process of the second visual inspection mechanism 10 along the conveying direction of the discharge conveyor line 8. The rejection unit is used to output products that fail the inspection by the second visual inspection mechanism 10 from the second defective product output port.

[0126] In this embodiment, by setting up a feeding mechanism 2, products conveyed to the feeding station by the feeding conveyor 1 are pushed onto the material bar 33. By setting up a discharging mechanism 7 after the process of the first visual inspection mechanism 5, products that have passed the inspection by the first visual inspection mechanism 5 are unloaded from the material bar 33 onto the discharge conveyor 8. By setting up a first rejection mechanism 6 after the process of the first visual inspection mechanism 5, products that have failed the inspection by the first visual inspection mechanism 5 are unloaded from the material bar 33 onto the first defective product output port for rejection and output. By synchronizing the movement of the defective product stop bar and the discharging stop bar, the equipment structure is simplified, and work efficiency and production costs can be effectively improved. By setting up a second rejection mechanism after the process of the second visual inspection mechanism 10, products that have failed the inspection by the second visual inspection mechanism 10 are rejected from the discharge conveyor 8 and output through the second defective product output port, so that the products output by the discharge conveyor 8 are qualified products. The first rejection mechanism 6, the second rejection mechanism, and the discharge conveyor line 8 enable the fine classification and output of products that fail the first inspection, products that fail the second inspection, and qualified products, which facilitates subsequent equipment maintenance and repair and effectively ensures product quality.

[0127] In one implementation,

[0128] The first visual inspection unit 5 includes a three-axis adjustment unit, a first imaging unit, and a first light source unit. The first imaging unit is mounted on the three-axis adjustment unit and is used to adjust the imaging position of the first imaging unit. The imaging direction of the first imaging unit is set towards the outer surface of the product to obtain an image of the outer surface of the product and send it to the inspection module for defect detection. The first light source unit is used to illuminate the outer surface of the product captured by the first imaging unit.

[0129] The second visual inspection mechanism 10 includes a second imaging unit, a sliding unit, and a second light source unit. The second imaging unit is installed on one side of the discharge conveyor line 8 via the first sliding unit. The imaging direction of the second imaging unit is set towards the opening of the product to obtain an image of the inner surface of the product and send it to the inspection module for defect detection. The second light source unit is used to illuminate the inner surface of the product captured by the second imaging unit.

[0130] In this embodiment, a first vision inspection mechanism and a second vision inspection mechanism are used to detect defects on the outer and inner surfaces of the product, thereby ensuring product quality. The three-axis adjustment unit can move the first imaging unit to the corresponding imaging position, enabling visual inspection of products of different specifications, improving the adaptability of the first vision inspection mechanism, and achieving flexible production.

[0131] The first light source unit may include one or more light sources as needed, such as a first light source and a second light source. The first light source is located on one side of the first imaging unit and is configured to illuminate the outer surface of the product. The second light source is located at one end of the product and is configured to supplement the outer surface of the product with light to improve the quality of the captured image and thus achieve accurate detection.

[0132] It should be noted that product defects can be shape defects and / or color defects, such as: ink splatter, pinholes, color deviation, missing print, black spots, scratches, abrasions, misregistration, etc. These can be customized according to testing needs and actual production requirements.

[0133] This defect detection system features a rotary table structure, applicable to any bottle or cylindrical product. It offers precise positioning, is simple and easy to debug, and reduces the number of actions required in the defect detection process. It can perform defect detection directly on the rotating workstation, processing the captured images through the detection module, making real-time judgments, analyses, and outputting the detection results. The defect detection cycle is short, and the product defect detection efficiency is high.

[0134] The functions of each module in each device of this utility model embodiment can be found in the corresponding description in the above method, and will not be repeated here.

[0135] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0136] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0137] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A product defect detection device, characterized in that, include: frame; A turntable mechanism, which is mounted on the frame; Multiple feed rods are arranged on the turntable mechanism, wherein the feed rods are used to fix the product thereon, and the turntable mechanism is used to drive the feed rods to convey the product along a preset direction and drive the product to rotate relative to the turntable mechanism; The first visual inspection mechanism is mounted on the frame and is used to inspect the outer surface of the product fixed on the material bar for defects. The second visual inspection agency is used to inspect the inner surface of products that have passed the inspection of the first visual inspection agency for defects.

2. The product defect detection device according to claim 1, characterized in that, The turntable mechanism includes: Support rods are mounted on the frame; A rotating disk is rotatably mounted on the support rod, and a plurality of the material rods are arranged in a circumferential array on the rotating disk around the support rod; A first driving component is disposed within the frame and is used to drive the rotating disk to rotate relative to the support rod, thereby causing the material rod to transport the product to the first visual inspection mechanism for defect detection. Multiple second driving components are respectively arranged on the rotating disk in a one-to-one correspondence with the multiple material rods. The second driving components are used to drive the material rods to rotate relative to the rotating disk so that the first visual inspection mechanism can perform defect detection on the outer surface of the product.

3. The product defect detection device according to claim 1, characterized in that, The turntable mechanism also includes: Multiple air nozzles are provided, and each air nozzle is correspondingly provided with a material rod. Each material rod has a first air hole at one end and a second air hole at the other end. A fluid channel is provided inside the material rod. The first air hole is connected to the second air hole through the fluid channel. Each air nozzle is connected to the first air hole of the corresponding material rod. Each air nozzle has an air intake state and an air blowing state. When the air nozzle is in the suction state, the corresponding second air hole on the material rod generates negative pressure to adsorb and fix the product on the material rod. When the air nozzle is in the blowing state, air is released from the second air hole on the corresponding material rod to cause the product to detach from the material rod.

4. The product defect detection device according to claim 3, characterized in that, The turntable mechanism also includes: Multiple pneumatic reversing valves are provided; each of the multiple pneumatic reversing valves is respectively configured to correspond one-to-one with the multiple air nozzles. The pneumatic reversing valves are used to connect to the corresponding air nozzles and air sources to control the air nozzles to switch to the air intake state or the air blowing state.

5. A product defect detection device according to claim 2, characterized in that, The turntable mechanism also includes: Multiple sealing sleeves are provided on the rotating disk in a one-to-one correspondence with the multiple material rods, and the material rods are rotatably sleeved with the corresponding sealing sleeves.

6. The product defect detection device according to claim 4, characterized in that, The turntable mechanism also includes: Multiple reversing drive components are provided, and each of the multiple reversing drive components is respectively configured in one-to-one correspondence with a multiple pneumatic reversing valve; wherein, the pneumatic reversing valve has a first mode and a second mode, and the reversing drive components are used to switch the pneumatic reversing valve to the first mode or the second mode; When the pneumatic reversing valve is in the first mode, the air nozzle is in the suction state; When the pneumatic reversing valve is in the second mode, the air nozzle is in the blowing state.

7. The product defect detection device according to claim 1, characterized in that, Also includes: A feeding conveyor line is used to transport the product to the loading station so that the product is loaded onto the feed bar; The discharge conveyor line is used to receive products that have passed the inspection of the first visual inspection agency and to transport the products to the second visual inspection agency so that the products can be discharged after passing the inspection of the second visual inspection agency; wherein, the second visual inspection agency is located on one side of the discharge conveyor line.

8. A product defect detection device according to claim 2, characterized in that, Also includes: A cleaning mechanism includes a cleaning roller and a third driving member. The cleaning roller and the third driving member are rotatably connected. The cleaning mechanism is sequentially arranged before the process of the first visual inspection mechanism along a preset conveying direction. The third driving member is used to drive the cleaning roller to contact the outer surface of the product conveyed to the cleaning station to remove dust from the outer surface of the product.

9. A product defect detection device according to claim 7, characterized in that, Also includes: A feeding mechanism is used to push the product on the feeding station onto the material bar; The unloading mechanism is used to unload products that have passed the inspection of the first vision inspection mechanism from the material bar to the discharge conveyor line; The first rejection mechanism is used to unload products that fail the inspection by the first visual inspection mechanism from the material bar to the first defective product output port; wherein, the first defective product output port is sequentially arranged after the process of the first visual inspection mechanism along the conveying direction of the material bar, and the first rejection mechanism moves synchronously with the unloading mechanism. The second rejection mechanism is used to output products that fail the inspection by the second visual inspection mechanism from the second defective product output port, wherein the second defective product output port is sequentially arranged after the process of the second visual inspection mechanism along the conveying direction of the discharge conveyor line.

10. A product defect detection device according to claim 1, characterized in that, The first visual inspection mechanism includes a three-axis adjustment unit, a first imaging unit, and a first light source unit. The first imaging unit is mounted on the three-axis adjustment unit, which is mounted on the frame. The three-axis adjustment unit is used to adjust the imaging position of the first imaging unit. The imaging direction of the first imaging unit is set towards the outer surface of the product to obtain an image of the outer surface of the product and send it to the inspection module for defect detection. The first light source unit is mounted on the frame or the three-axis adjustment unit and is used to illuminate the outer surface of the product captured by the first imaging unit. The second visual inspection mechanism includes a second imaging unit, a sliding unit, and a second light source unit. The second imaging unit is installed on one side of the discharge conveyor line via the first sliding unit. The imaging direction of the second imaging unit is set towards the opening of the product to obtain an image of the inner surface of the product and send it to the inspection module for defect detection. The second light source unit is used to illuminate the inner surface of the product captured by the second imaging unit.

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