A product detecting and rejecting device based on CCD vision

Abstract

The utility model relates to visual inspection and automation equipment technical field, especially in kind based on CCD vision's product detection and elimination device, include: conveying guide mechanism for driving product moves along the preset path, including conveying product's first conveying assembly, the movement of product on the first conveying assembly is guided and located the guide rod subassembly above the first conveying assembly, the incoming material of first conveying assembly has at least two immediately adjacent products to be measured in each column, CCD detection mechanism includes the CCD camera of setting in the detection station, the end of conveying guide mechanism is equipped with the good product channel and the substandard product channel formed by the guide rod subassembly separation, wherein the number of good product channel is same with the number of CCD camera. The utility model among them the incoming material design of conveying guide mechanism allows at least two immediately adjacent product conveying in each column, reduces the detection air gap period, improves the detection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of visual inspection and automation equipment technology, and in particular to a product inspection and rejection device based on CCD vision. Background Technology

[0002] CCD visual inspection technology is an automated inspection technology based on CCD image sensors. It is widely used in industrial manufacturing to achieve high-precision and high-efficiency product quality control. CCD visual inspection converts the optical image of the target object into a digital signal through a CCD image sensor, and then uses an image processing system to analyze it, ultimately achieving automated judgment and control. It includes a CCD camera, an image processing system (including database and algorithms), a mechanical positioning device, and an actuator, forming a complete inspection closed loop.

[0003] Existing visual inspection devices can only inspect and reject one product at a time when inspecting products and removing defective products, and there is an interval between two incoming products. For example, a visual inspection device for rejecting defective products disclosed in application number CN202323488803.X specifically discloses that "the product to be inspected is placed on a conveyor belt 3, and the product is transported by the conveyor belt 3. When the product is transported under the support plate 5, the CCD camera 8 can perform surface inspection on the product. When the product is found to be defective, the image processing system 12 sends control commands through the network." The control mechanism 11 sends a command to the cylinder 13, which then drives the pusher plate 14 to push the defective products to the first unloading plate 15, where they slide into the first collection box 16 for collection. The qualified products can then be transported by the conveyor belt 3 to the second unloading plate 17, where they slide into the second collection box 18 for centralized collection. However, there is no automated equipment for inspecting and rejecting defective products from multiple parallel feeders, where each feeder has at least two adjacent products. At the same time, how to use a smaller number of CCD cameras to inspect multiple products and save costs is also a problem that needs to be considered. Utility Model Content

[0004] The purpose of this invention is to provide a product inspection and rejection device based on CCD vision, so as to solve the problem in the prior art that there is no device for inspecting and rejecting defective products from multiple rows of incoming materials arranged side by side, with at least two adjacent products in each row.

[0005] The technical solution of this utility model is: a product detection and rejection device based on CCD vision, comprising:

[0006] A conveying and guiding mechanism for driving products to move along a preset path includes a first conveying component for conveying products and a guide rod assembly that guides the movement of products on the first conveying component and is located above the first conveying component; each column of incoming materials in the first conveying component contains at least two adjacent products to be tested.

[0007] The CCD inspection mechanism includes a CCD camera installed at the inspection station; the end of the conveying and guiding mechanism is provided with a good product channel and a defective product channel separated by a guide rod assembly, wherein the number of good product channels is the same as the number of CCD cameras; the channel formed by the guide rod assembly to guide the product flow to the CCD camera is the incoming material channel, the incoming material channel and the good product channel are arranged colinearly, and the defective product channel is located on the side of the good product channel;

[0008] The defective product driving mechanism, which has the same number of CCD cameras, is used to move the defective products detected by the CCD inspection mechanism perpendicular to the conveying direction of the first conveying component into the defective product channel, while the good products continue to be conveyed forward along the original path into the good product channel.

[0009] Preferably, the incoming material of the first conveying component includes at least two parallel rows of products to be tested, and the number of parallel rows of incoming material is greater than the number of CCD cameras in the product detection and rejection device; the guide rod assembly includes multiple guide rods arranged in parallel.

[0010] The product inspection and rejection device further includes at least one flow guiding mechanism, which is located between the CCD camera and the inlet of the incoming material channel; the incoming material channel includes at least one set of two adjacent incoming material channels: incoming material channel A without a CCD camera and incoming material channel B with a CCD camera; each of the flow guiding mechanisms includes a flow guiding component that guides the product to be tested in incoming material channel A to incoming material channel B, and a blocking component that blocks the product to be tested in incoming material channel B to make way for the product to be tested in incoming material channel A; the flow guiding component is located between the blocking component and the CCD camera;

[0011] The flow guide is installed on two adjacent guide rods forming the material inlet channel A, wherein the lower end of the guide rod biased towards the material inlet channel B has a notch that allows the product to be tested to flow from the material inlet channel A to the material inlet channel B.

[0012] Preferably, each of the defective product driving mechanisms includes an L-shaped baffle and a driving member that drives the baffle to reciprocate along a conveying direction perpendicular to the first conveying assembly. The baffle includes a push plate parallel to the guide rod and a baffle perpendicular to the guide rod. The baffle is located on the side of the push plate away from a defective product channel corresponding to the push plate. When the push plate pushes a defective product into the defective product channel, the baffle blocks the inspected product located behind the defective product.

[0013] Preferably, the output end of the conveying and guiding mechanism is adjacent to a downwardly inclined feeding component. The guide plane of the feeding component is provided with a defective product recycling channel connected to the defective product channel and a good product feeding channel connected to the good product channel. The defective product recycling channel has a gravity feeding port for the defective products to fall. The good products in the good product feeding channel continue to slide and be conveyed along the guide plane of the feeding component.

[0014] Preferably, a defective product receiving box is placed below the gravity discharge port; the end of the defective product recycling channel is sealed.

[0015] Preferably, the blocking assembly includes a top plate and a driving component that presses against or releases the product to be tested along a conveying direction perpendicular to the first conveying assembly.

[0016] Preferably, the multiple guide rods are arranged at intervals to form five columns of incoming material channels, and the ends of the five columns of incoming material channels are divided into three good product channels and four defective product channels by the guide rods of the next stage at intervals.

[0017] The five material receiving channels are respectively the first material receiving channel, the second material receiving channel, the third material receiving channel, the fourth material receiving channel, and the fifth material receiving channel along the first direction. A CCD camera is installed above the first material receiving channel, the third material receiving channel, and the fifth material receiving channel.

[0018] The three good product channels and the four defective product channels are arranged alternately, and along the first direction are respectively the first defective product channel, the first good product channel, the second defective product channel, the second good product channel, the third defective product channel, the third good product channel, and the fourth defective product channel;

[0019] The first, second, third, fourth, and fifth material inlet channels are connected to the first good product channel, the second defective product channel, the second good product channel, the third defective product channel, and the third good product channel, respectively.

[0020] Preferably, there are two flow guides, namely a first flow guide and a second flow guide disposed in the second material inlet channel and the fourth material inlet channel, respectively. The first flow guide guides the product to be tested in the second material inlet channel to the first material inlet channel, and the second flow guide guides the product to be tested in the fourth material inlet channel to the fifth material inlet channel.

[0021] The number of blocking components is two, namely a first blocking component that blocks the product to be tested in the first incoming material channel and a second blocking component that blocks the product to be tested in the fifth incoming material channel.

[0022] The number of defective product driving mechanisms is three, namely a first defective product driving mechanism that pushes defective products detected in the first incoming material channel into the first defective product channel, a second defective product driving mechanism that pushes defective products detected in the third incoming material channel into the third defective product channel, and a third defective product driving mechanism that pushes defective products detected in the fifth incoming material channel into the fourth defective product channel.

[0023] Preferably, the input end of the conveying and guiding mechanism is adjacent to the transfer mechanism, and the transfer mechanism is provided with the same first conveying component and guide rod component as the conveying and guiding mechanism to form a feeding channel, and the feeding channel and the receiving channel are connected in a one-to-one correspondence.

[0024] Preferably, a second conveying component is provided below the output end of the feeding component, and both the first conveying component and the second conveying component are belt conveyors.

[0025] Compared with the prior art, the advantages of this utility model are:

[0026] (1) A product inspection and rejection device based on CCD vision in this utility model includes a transfer mechanism, a conveying and guiding mechanism, a CCD inspection mechanism, and a defective product driving mechanism. The material receiving design of the conveying and guiding mechanism allows at least two adjacent products to be conveyed in each column, reducing the inspection gap and improving the inspection efficiency. The defective product driving mechanism can reject at least two adjacent products in each column of incoming materials.

[0027] (2) A product inspection and rejection device based on CCD vision in this utility model dynamically associates the incoming material channel without a CCD camera with the incoming material channel equipped with a CCD camera through a flow guiding and coordination mechanism, thereby achieving optimized hardware resource allocation and reducing equipment costs; the push plate in this utility model includes a push plate and a baffle. When the push plate pushes the defective product into the defective product channel, the baffle blocks the inspected product located behind the defective product. Regardless of whether the inspected product behind the defective product is a good product or a defective product, its flow direction can be accurately controlled. Attached Figure Description

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0029] Figure 1 This is a top view of the product inspection and rejection device based on CCD vision described in this utility model;

[0030] Figure 2 This is a schematic diagram of the structure of the product detection and rejection device based on CCD vision described in this utility model;

[0031] Figure 3 for Figure 1 Enlarged structural diagram at point A in the middle;

[0032] Figure 4 for Figure 2 Enlarged structural diagram at point B;

[0033] Figure 5 for Figure 2 Enlarged structural diagram at point C;

[0034] Figure 6 for Figure 2 Enlarged structural diagram at point D.

[0035] The components include: 1. Transfer mechanism; 2. Feeding channel; 3. Conveying and guiding mechanism; 4. Guide rod; 5. First feeding channel; 6. Second feeding channel; 7. Third feeding channel; 8. Fourth feeding channel; 9. Fifth feeding channel; 10. First top plate; 11. First cylinder; 12. Second top plate; 13. Second cylinder; 14. First guide plate; 15. Second guide plate; 16. First CCD camera; 17. Second CCD camera; 18. Third CCD camera; 19. First baffle; 20. Third cylinder; 21. Second baffle; 22. Fourth cylinder; 23. Third baffle; 24. Fifth cylinder; 25. First push plate; 26. First baffle. 7. First Defective Product Channel; 28. First Good Product Channel; 29. ​​Second Defective Product Channel; 30. Second Good Product Channel; 31. Third Defective Product Channel; 32. Third Good Product Channel; 33. Fourth Defective Product Channel; 34. First Defective Product Recycling Channel; 35. Second Defective Product Recycling Channel; 36. Third Defective Product Recycling Channel; 37. Fourth Defective Product Recycling Channel; 38. First Good Product Feeding Channel; 39. Second Good Product Feeding Channel; 40. Third Good Product Feeding Channel; 41. Third Baffle; 42. Gravity Feeding Port; 43. Feeding Plate; 44. Second Conveying Assembly; 45. Second Push Plate; 46. Second Baffle; 47. Third Push Plate; 48. Product. Detailed Implementation

[0036] The present invention will be further described in detail below with reference to specific embodiments:

[0037] In the description of the utility model, it should be understood that the terms "center", "longitudinal", "conveying direction perpendicular to the first conveying component", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0038] like Figure 1 , Figure 2 As shown, a product inspection and rejection device based on CCD vision includes a conveying and guiding mechanism 3, a CCD inspection mechanism, and a defective product driving mechanism. In this embodiment, the product to be tested 48 is a box with an open top. The bottom of the box is printed with an environmental protection label. The CCD inspection mechanism detects whether the environmental protection label is clear or whether there are any marks. The CCD inspection mechanism involves existing industrial vision inspection software, special inspection tools, spectral analysis software, etc. The specific software part is not the point of invention of this utility model. It should be noted that in this embodiment, "incoming material" refers to the product conveyed to the transfer mechanism 1 by the pick-and-place mechanism (not shown in the figure) of the previous station. Of course, in another embodiment, the transfer mechanism 1 may not be provided, and only the conveying guide mechanism 3 is provided. In this case, in another embodiment, "incoming material" refers to the product conveyed to the conveying guide mechanism 3 by the pick-and-place mechanism of the previous station. The conveying guide mechanism 3 is used to drive the product 48 to move along a preset path. The conveying guide mechanism 3 includes a first conveying component for conveying the product 48 and a guide rod assembly that guides the movement of the product 48 on the first conveying component and is located above the first conveying component. The input end of the conveying guide mechanism 3 is adjacent to the transfer mechanism 1. The transfer mechanism 1 is provided with the same first conveying component and guide rod assembly as the conveying guide mechanism 3 to form a feeding channel 2. The feeding channel 2 and the incoming material channel are connected one-to-one. In this embodiment, the belts of the first conveying components of the conveying guide mechanism 3 and the transfer mechanism 1 are continuously conveying without stopping.

[0039] In this embodiment, the first conveying component is a belt conveyor, and the guide rod assembly includes multiple parallel guide rods 4. Each column of the incoming material to the first conveying component contains at least two adjacent products to be tested 48. In this embodiment, "adjacent" means that the two products 48 are relatively close together without touching or interfering with each other. Furthermore, in this embodiment, each column of the incoming material to the conveying guide mechanism 3 contains two adjacent products to be tested 48. In another embodiment, each column of the incoming material to the conveying guide mechanism 3 may contain three, four, five, or more adjacent products to be tested 48. This product detection and rejection device is applicable to all of these. The incoming material to the conveying guide mechanism 3 contains at least two columns of products to be tested 48, and the number of columns is greater than the number of CCD cameras in the product detection and rejection device. In this embodiment, the incoming material to the conveying guide mechanism 3 contains at least two parallel columns of products to be tested 48, and the number of parallel columns is greater than the number of CCD cameras in the product detection and rejection device. "Two parallel columns" means... Figure 1The material receiving method shown involves two rows of products, aligned along a conveying direction perpendicular to the first conveying component. It should be noted that if the material receiving mechanism 3 is non-parallel, meaning the two rows are staggered along a conveying direction perpendicular to the first conveying component, with one row in front and the other behind, the working principle of non-parallel material receiving is the same as that of parallel material receiving, since sensors are installed at the blocking component and the guide component. In this embodiment, the number of parallel material receiving rows is greater than the number of CCD cameras in the product detection and rejection device, to accommodate the use of fewer CCD cameras to detect multiple rows of products. Compared to the prior art where several rows of products correspond to several CCD cameras (e.g., 5 rows of products require 5 CCD cameras), the equipment cost is lower. In this embodiment, the conveying guide mechanism... The incoming material in structure 3 consists of five columns, and there are three CCD cameras. The CCD cameras are any type of digital camera with a charge-coupled device image sensor, and are existing electronic products; therefore, a detailed structural description is not provided here. In this embodiment, the incoming material consists of five columns of ten (i.e., five columns side-by-side) test products 48 placed simultaneously on the transfer mechanism 1, with two adjacent test products 48 in each column. The five columns of ten test products 48 on the transfer mechanism 1 are then conveyed to the conveying guide mechanism 3. Therefore, the incoming material in the conveying guide mechanism 3 also consists of five columns of ten test products 48, with two adjacent test products 48 in each column. Furthermore, multiple guide rods 4 are arranged at intervals to form five parallel incoming material channels. The ends of these five parallel incoming material channels are then divided into three good product channels and four defective product channels by the next stage of guide rods 4. The five incoming material channels are along a first direction (the first direction is...). Figure 1 From top to bottom, the material in the middle are the first material inlet channel 5, the second material inlet channel 6, the third material inlet channel 7, the fourth material inlet channel 8, and the fifth material inlet channel 9. The first CCD camera 16 is installed above the first material inlet channel 5, the second CCD camera 17 is installed above the third material inlet channel 7, and the third CCD camera 18 is installed above the fifth material inlet channel 9.

[0040] like Figure 1 , Figure 2 As shown, the product inspection and rejection device also includes at least one flow guiding and coordinating mechanism, which is located between the CCD camera and the conveying inlet of the incoming material channel, i.e., the flow guiding and coordinating mechanism is set in... Figure 1To the left of the CCD camera; the incoming material channel includes at least one set of two adjacent incoming material channels: incoming material channel A without a CCD camera and incoming material channel B with a CCD camera; each guiding mechanism includes a guide component that guides the product under test 48 in incoming material channel A to incoming material channel B, and a blocking component that blocks the product under test 48 in incoming material channel B to make way for the product under test 48 in incoming material channel A; the guide component is located between the blocking component and the CCD camera; the guide component is mounted on two adjacent guide rods 4 forming incoming material channel A, wherein the lower end of the guide rod 4 biased towards incoming material channel B has a notch that allows the product under test 48 to flow from incoming material channel A to incoming material channel B (e.g., Figure 5 (As shown). In this embodiment, there are two flow guiding mechanisms, and more specifically, there are two flow guiding components, namely a first flow guiding component and a second flow guiding component disposed in the second material inlet channel 6 and the fourth material inlet channel 8, respectively. In this embodiment, as shown... Figure 5 As shown, the first guide component is the first guide plate 14, and the second guide component is the second guide plate 15. The first guide component guides the product to be tested 48 in the second inlet channel 6 to the first inlet channel 5, and the second guide component guides the product to be tested 48 in the fourth inlet channel 8 to the fifth inlet channel 9; Figure 4 As shown, there are two blocking components: a first blocking component that blocks the product 48 to be tested in the first incoming material channel 5, and a second blocking component that blocks the product 48 to be tested in the fifth incoming material channel 9. Each blocking component includes a top plate and a driving member that drives the top plate to press against or release the product 48 to be tested along a conveying direction perpendicular to the first conveying component. In this embodiment, the first blocking component is a first top plate assembly, and the second blocking component is a second top plate assembly. The first top plate assembly includes a first top plate 10 and a first cylinder 11, and the second top plate assembly includes a second top plate 12 and a second cylinder 13. Through the flow guiding and coordination mechanism, the incoming material channel without a CCD camera is dynamically associated with the incoming material channel equipped with a CCD camera, thereby achieving optimized configuration of hardware resources.

[0041] like Figure 1 , Figure 2As shown, the CCD inspection mechanism includes a CCD camera installed at the inspection station; the end of the conveying and guiding mechanism 9 is provided with a good product channel and a defective product channel formed by a guide rod assembly, wherein the number of good product channels is the same as the number of CCD cameras; the channel formed by the guide rod assembly to guide the product flow to the CCD camera is the incoming material channel. The incoming material channel and the good product channel are arranged colinearly, that is, if the product 48 to be tested in the incoming material channel detected by the CCD camera is a good product, the product 48 continues to be conveyed forward along the original path to the good product channel without changing the path, making the overall process simpler and conducive to maintaining the continuity of high-speed inspection; the defective product channel is located on the side of the good product channel, that is, one or two defective product channels are set adjacent to the side of each good product channel to facilitate the rejection of defective products. In this embodiment, three good product channels and four defective product channels are staggered along the first direction (the first direction is... Figure 1 From top to bottom, the channels are: First Defective Product Channel 27, First Good Product Channel 28, Second Defective Product Channel 29, Second Good Product Channel 30, Third Defective Product Channel 31, Third Good Product Channel 32, and Fourth Defective Product Channel 33; wherein, First Incoming Material Channel 5, Second Incoming Material Channel 6, Third Incoming Material Channel 7, Fourth Incoming Material Channel 8, and Fifth Incoming Material Channel 9 are connected to First Good Product Channel 28, Second Defective Product Channel 29, Second Good Product Channel 30, Third Defective Product Channel 31, and Third Good Product Channel 32, respectively.

[0042] The number of defective product driving mechanisms is the same as the number of CCD cameras. They are used to move defective products detected by the CCD inspection mechanism perpendicular to the conveying direction of the first conveying component into the defective product channel, while good products continue to be conveyed into the good product channel along the original path. There are three defective product driving mechanisms: a first defective product driving mechanism that pushes defective products detected in the first incoming material channel 5 into the first defective product channel 27; a second defective product driving mechanism that pushes defective products detected in the third incoming material channel 7 into the third defective product channel 31; and a third defective product driving mechanism that pushes defective products detected in the fifth incoming material channel 9 into the fourth defective product channel 33. Each defective product driving mechanism includes an L-shaped baffle and a driving component that drives the baffle to reciprocate along a conveying direction perpendicular to the first conveying assembly. The baffle includes a push plate parallel to the guide rod 4 and a baffle perpendicular to the guide rod 4. The baffle is located on the side of the push plate away from the defective product channel corresponding to the push plate. When the push plate pushes the defective product into the defective product channel, the baffle blocks the inspected product 48 located behind the defective product. Figure 3 , Figure 6As shown, in this embodiment, the first defective product driving mechanism, the second defective product driving mechanism, and the third defective product driving mechanism are respectively a first toggle mechanism, a second toggle mechanism, and a third toggle mechanism. The first toggle mechanism includes a first toggle plate 19 and a third cylinder 20. The first toggle plate 19 includes a first push plate 25 and a first baffle 26. The second toggle mechanism includes a second toggle plate 21 and a fourth cylinder 22. The second toggle plate 21 includes a second push plate 45 and a second baffle 46. The third toggle mechanism includes a third toggle plate 23 and a fifth cylinder 24. The third toggle plate 23 includes a third push plate 47 and a third baffle 41. The movement trajectory of the defective products driven by the first toggle mechanism, the second toggle mechanism, and the third toggle mechanism is as follows: Figure 1 and Figure 3 As shown by the dashed line and arrow. The working principle of the defective product drive mechanism is as follows: Taking the third dial 23 as an example, as... Figure 3 As shown, if product 1 48 is defective, the piston rod of the fifth cylinder 24 retracts, thereby driving the third push plate 47 and the third baffle 41 to move downward. The third push plate 47 pushes product 1 48 from the fifth incoming material channel 9 into the fourth defective product channel 33, while the third baffle 41 blocks product 2 48 from moving forward. Then, when the third push plate 47 extends and resets, the third baffle 41 continues to block product 2 48 from moving forward. When the third push plate 47 fully extends and resets, product 2 48 continues to flow forward. If product 2 48 is good, the third deflector mechanism does not move, and product 2 48 flows into the third good product channel 32. If product 2 48 is defective, the third deflector 23 of the third deflector mechanism moves again to push product 2 48 into the fourth defective product channel 33. Without a baffle, because the two products 48 in the incoming channel are adjacent and the belt of the first conveyor assembly is continuously conveying without stopping, when the third pusher plate 47 pushes product 1 48 into the fourth defective product channel 33, product 2 48, located behind product 1 48, will continue to move forward under the conveyor belt. Product 1 48, the third pusher plate 47, and the continuing-moving product 2 48 may collide and interfere with each other. Furthermore, if product 2 48 is defective, the interference may result in the third pusher plate 47 of the third baffle plate 23 being unable to push product 2 48 into the fourth defective product channel 33, thus losing control over the flow direction of product 2 48. With the baffle, the flow direction of product 2 48 can be accurately controlled regardless of whether it is a good or defective product.

[0043] like Figure 1 , Figure 2As shown, the output end of the conveying and guiding mechanism 3 is adjacent to a downwardly inclined feeding component. The guide plane of the feeding component is provided with a defective product recycling channel connected to the defective product channel and a good product feeding channel connected to the good product channel. The defective product recycling channel has a gravity feeding port 42 for dropping defective products. A defective product receiving box is placed below the gravity feeding port 42. Good products in the good product feeding channel continue to slide and be transported along the guide plane of the feeding component. In this embodiment, the defective product recycling channel is provided with a first defective product recycling channel 34, a second defective product recycling channel 35, a third defective product recycling channel 36, and a fourth defective product recycling channel 37 corresponding to the defective product channel. The good product feeding channel is provided with a first good product feeding channel 38, a second good product feeding channel 39, and a third good product feeding channel 40 corresponding to the good product channel. In this embodiment, the feeding component is a feeding plate 43, and the end of the defective product recycling channel is sealed. A second conveying component 44 is provided below the output end of the feeding component. Both the first conveying component and the second conveying component 44 are belt conveyors.

[0044] The working principle of the product inspection and rejection device based on CCD vision in this utility model is as follows: In the initial state, the piston rods of the first cylinder 11, the second cylinder 13, and the fourth cylinder 22 retract, while the piston rods of the third cylinder 20 and the fifth cylinder 24 extend. The ten products to be tested 48 arranged in five parallel rows (i.e., two adjacent products 48 in each row) are placed into five feeding channels 2 by the pick-and-place mechanism of the previous station. These products are then transported by the five feeding channels 2 to the first receiving channel 5, the second receiving channel 6, the third receiving channel 7, the fourth receiving channel 8, and the fifth receiving channel 9 of the conveying and guiding mechanism 3, respectively. When the ten products to be tested 48 in five rows flow to the first top plate assembly and the second top plate assembly, they are positioned at the first top plate assembly and the second top plate assembly. When the sensor detects the product to be tested 48, the piston rods of the first cylinder 11 and the second cylinder 13 extend, using the first top plate 10 and the second top plate 12 to block one of the products to be tested 48 in front, thus blocking the two products to be tested 48 in the first feeding channel 5 and the two products to be tested 48 in the fifth feeding channel 9 from advancing, while the two products to be tested 48 in the second feeding channel 6, the two products to be tested 48 in the third feeding channel 7, and the two products to be tested 48 in the fourth feeding channel 8 continue to advance; subsequently, the second Two products 48 to be tested in the inlet channel 6 are guided by the first guide plate 14 to the first inlet channel 5, where they are detected by the first CCD camera 16; two products 48 to be tested in the third inlet channel 7 continue to flow forward, where they are detected by the second CCD camera 17; two products 48 to be tested in the fourth inlet channel 8 are guided by the second guide plate 15 to the fifth inlet channel 9, where they are detected by the third CCD camera 18; when the sensor detects that the two products 48 to be tested in the second inlet channel 6 have completely flowed into the first inlet channel 5, the first cylinder 11 drives the first top plate 10 to retract, and the two products 48 to be tested in the first inlet channel 5 continue to move forward, where they are detected by the first CCD camera 16; when the sensor detects that the two products 48 to be tested in the fourth inlet channel 8 have completely flowed into the fifth inlet channel 9, the second cylinder 13 drives the second top plate 12 to retract, and the two products 48 to be tested in the fifth inlet channel 9 continue to move forward, where they are detected by the third CCD camera 18.

[0045] When the first CCD camera 16 detects a defective product, the sensor detects that the defective product has moved to the first deflector assembly. The third cylinder 20 of the first deflector assembly retracts, pushing the defective product from the first incoming material channel 5 into the first defective product recycling channel 34, and then falling into the defective product receiving box through the gravity discharge port 42. The good products detected by the first CCD camera 16 continue to move forward into the first good product channel 28, and then are conveyed to the second conveying assembly 44 through the first good product discharge channel 38 and the discharge plate 43.

[0046] When the second CCD camera 17 detects a defective product, the sensor detects that the defective product has moved to the second deflector assembly. The fourth cylinder 22 of the first deflector assembly extends and pushes the defective product from the third incoming material channel 7 into the third defective product recycling channel 36, and then falls into the defective product receiving box through the gravity discharge port 42. The good products detected by the second CCD camera 17 continue to move forward into the second good product channel 30, and then are conveyed to the second conveying assembly 44 through the second good product discharge channel 39 and the discharge plate 43.

[0047] When the third CCD camera 18 detects a defective product, the sensor detects that the defective product has moved to the third deflector assembly. The fifth cylinder 24 of the third deflector assembly retracts, pushing the defective product from the fifth incoming material channel 9 into the fourth defective product recycling channel 37, and then falling into the defective product receiving box through the gravity discharge port 42. The good products detected by the third CCD camera 18 continue to move forward into the third good product channel 32, and then are conveyed to the second conveying assembly 44 through the third good product unloading channel 40 and the unloading plate 43.

[0048] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore, all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.

Claims

1. A product inspection and rejection device based on CCD vision, characterized in that, include: A conveying and guiding mechanism for driving products to move along a preset path includes a first conveying component for conveying products and a guide rod assembly that guides the movement of products on the first conveying component and is located above the first conveying component; each column of incoming materials in the first conveying component contains at least two adjacent products to be tested. The CCD inspection mechanism includes a CCD camera installed at the inspection station; the end of the conveying and guiding mechanism is provided with a good product channel and a defective product channel separated by a guide rod assembly, wherein the number of good product channels is the same as the number of CCD cameras; the channel formed by the guide rod assembly to guide the product flow to the CCD camera is the incoming material channel, the incoming material channel and the good product channel are arranged colinearly, and the defective product channel is located on the side of the good product channel; The defective product driving mechanism, which has the same number of CCD cameras, is used to move the defective products detected by the CCD inspection mechanism perpendicular to the conveying direction of the first conveying component into the defective product channel, while the good products continue to be conveyed forward along the original path into the good product channel.

2. The product inspection and rejection device based on CCD vision according to claim 1, characterized in that: The first conveying assembly has at least two columns of products to be tested in its incoming material, and the number of columns of incoming material is greater than the number of CCD cameras in the product detection and rejection device; the guide rod assembly includes multiple guide rods arranged in parallel. The product inspection and rejection device further includes at least one flow guiding mechanism, which is located between the CCD camera and the inlet of the incoming material channel; the incoming material channel includes at least one set of two adjacent incoming material channels: incoming material channel A without a CCD camera and incoming material channel B with a CCD camera; each of the flow guiding mechanisms includes a flow guiding component that guides the product to be tested in incoming material channel A to incoming material channel B, and a blocking component that blocks the product to be tested in incoming material channel B to make way for the product to be tested in incoming material channel A; the flow guiding component is located between the blocking component and the CCD camera; The flow guide is installed on two adjacent guide rods forming the material inlet channel A, wherein the lower end of the guide rod biased towards the material inlet channel B has a notch that allows the product to be tested to flow from the material inlet channel A to the material inlet channel B.

3. The product inspection and rejection device based on CCD vision according to claim 2, characterized in that: Each of the defective product driving mechanisms includes an L-shaped turntable and a driving member that drives the turntable to reciprocate along a conveying direction perpendicular to the first conveying assembly. The turntable includes a push plate parallel to the guide rod and a baffle perpendicular to the guide rod. The baffle is located on the side of the push plate away from a defective product channel corresponding to the push plate. When the push plate pushes a defective product into the defective product channel, the baffle blocks the inspected product located behind the defective product.

4. The product detection and rejection device based on CCD vision according to claim 1, characterized in that: The output end of the conveying and guiding mechanism is adjacent to a downwardly inclined feeding component. The guide plane of the feeding component is provided with a defective product recycling channel connected to the defective product channel and a good product feeding channel connected to the good product channel. The defective product recycling channel has a gravity feeding port for the defective products to fall. The good products in the good product feeding channel continue to slide and be conveyed along the guide plane of the feeding component.

5. The product detection and rejection device based on CCD vision according to claim 4, characterized in that: A defective product receiving box is placed below the gravity discharge port; the end of the defective product recycling channel is sealed.

6. The product detection and rejection device based on CCD vision according to claim 2, characterized in that: The blocking assembly includes a top plate and a driving component that presses against or releases the product to be tested along a conveying direction perpendicular to the first conveying assembly.

7. The product inspection and rejection device based on CCD vision according to claim 2, characterized in that: Multiple guide rods are arranged at intervals to form five columns of incoming material channels. The ends of the five columns of incoming material channels are divided into three good product channels and four defective product channels by the next stage of guide rods arranged at intervals. The five material receiving channels are respectively the first material receiving channel, the second material receiving channel, the third material receiving channel, the fourth material receiving channel, and the fifth material receiving channel along the first direction. A CCD camera is installed above the first material receiving channel, the third material receiving channel, and the fifth material receiving channel. The three good product channels and the four defective product channels are arranged alternately, and along the first direction are respectively the first defective product channel, the first good product channel, the second defective product channel, the second good product channel, the third defective product channel, the third good product channel, and the fourth defective product channel; The first, second, third, fourth, and fifth material inlet channels are connected to the first good product channel, the second defective product channel, the second good product channel, the third defective product channel, and the third good product channel, respectively.

8. The product inspection and rejection device based on CCD vision according to claim 7, characterized in that: The number of flow guiding components is two, namely a first flow guiding component and a second flow guiding component installed in the second material inlet channel and the fourth material inlet channel, respectively. The first flow guiding component guides the product to be tested in the second material inlet channel to the first material inlet channel, and the second flow guiding component guides the product to be tested in the fourth material inlet channel to the fifth material inlet channel. The number of blocking components is two, namely a first blocking component that blocks the product to be tested in the first incoming material channel and a second blocking component that blocks the product to be tested in the fifth incoming material channel. The number of defective product driving mechanisms is three, namely a first defective product driving mechanism that pushes defective products detected in the first incoming material channel into the first defective product channel, a second defective product driving mechanism that pushes defective products detected in the third incoming material channel into the third defective product channel, and a third defective product driving mechanism that pushes defective products detected in the fifth incoming material channel into the fourth defective product channel.

9. The product inspection and rejection device based on CCD vision according to claim 1, characterized in that: The input end of the conveying and guiding mechanism is adjacent to the transfer mechanism. The transfer mechanism is equipped with the same first conveying component and guide rod component as the conveying and guiding mechanism to form a feeding channel. The feeding channel and the incoming material channel are connected in a one-to-one correspondence.

10. A product detection and rejection device based on CCD vision according to claim 4, characterized in that: A second conveying component is provided below the output end of the feeding component, and both the first and second conveying components are belt conveyors.

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