Product two-dimensional code burning and carving inspection system

Abstract

The utility model provides a product two-dimensional code burning and carving inspection system, and relates to the technical field of conveyor belt conveying, the inspection system comprises a conveying assembly used for conveying a to-be-inspected product, the conveying assembly comprises a conveyor belt, and a plurality of product stations are evenly distributed on the outer surface of the conveyor belt in the conveying direction; a conveyor belt through hole corresponding to each product station is formed in the conveyor belt, and when a to-be-inspected product is located in the product station, the conveyor belt through holes are completely shielded by the to-be-inspected product; the first product detection assembly is used for acquiring first two-dimensional code information of the top surface of the to-be-detected product; the second product detection assembly is used for burning and carving a two-dimensional code on the bottom surface of the to-be-detected product and acquiring second two-dimensional code information; and the field industrial personal computer is configured to judge whether the to-be-detected product is qualified or not according to the two-dimensional code information acquired by the first product detection assembly and the second product detection assembly. By means of the detection system, the problem that an existing conveying belt cannot conduct conveying and information collection on products in special shapes at the same time is solved.

Description

Technical Field

[0001] The present application relates to the field of conveyor belt technology, and in particular to a product two-dimensional code burning inspection system. Background Art

[0002] At present, the information construction of manufacturing enterprises has become an indispensable factor in enterprise development, and the digital management of enterprise products has also become a part of enterprise information construction and has been increasingly widely used.

[0003] In the process of digital management of enterprise product production, the digital information of the outer cover and inner cover of "special shape products" (taking "hexagonal can cover" as an example in this case) is often loaded, read, collected and matched.

[0004] For this kind of "special shape products", because their position on the conveyor belt is not fixed during the transmission process, the traditional product digital information reading and collection can only be done through manual operation to collect and match the internal and external code information. In this way, the efficiency of digital information collection and matching of "special shape products" is extremely low, which cannot meet the efficiency needs of large-scale production of enterprise products.

[0005] In order to improve the efficiency of product digital coding and digital reading and collection, it is necessary to avoid manual collection and matching of product digital information. Instead, a special new conveyor belt should be designed to meet the requirements of fast and automatic information collection and matching of "special-shaped products". Products that have not been successfully read can even be removed on-site to ensure that product digital information collection and matching are 100% effective, making product digital information management more accurate.

[0006] However, the current conveyor belts cannot meet the requirements for information collection of products with special shapes. Utility Model Content

[0007] The present application provides a product two-dimensional code burning inspection system to solve the problem that the existing conveyor belt cannot simultaneously transport and collect information for products of special shapes.

[0008] The inspection system comprises:

[0009] A conveying assembly, the conveying assembly is used to convey the product to be inspected, the conveying assembly includes a conveyor belt, a plurality of product stations are evenly distributed on the outer surface of the conveyor belt along the conveying direction, a conveyor belt through hole is provided on the conveyor belt corresponding to each product station, when the product to be inspected is located in the product station, the conveyor belt through hole is completely blocked by the bottom surface of the product to be inspected;

[0010] A first product detection component, which is disposed above the conveyor belt and is configured to obtain first QR code information on a top surface of a product to be inspected;

[0011] A second product detection component, the second product detection component is arranged below the conveyor belt, and the second product detection component is configured to burn a QR code on the bottom surface of the product to be inspected and obtain second QR code information;

[0012] An on-site industrial computer is configured to determine whether the product to be inspected is qualified based on the two-dimensional code information obtained by the first product detection component and the second product detection component.

[0013] Preferably, the product station includes at least two protrusions, and a product placement area is enclosed between the protrusions. The orthographic projection of the central axis of the conveyor belt through hole in the product placement area coincides with the center point of the minimum inscribed circle of the product placement area.

[0014] Preferably, the first product detection component is further configured to obtain first two-dimensional code information on the top surface of the product to be detected, and send the first two-dimensional code information to the on-site industrial computer;

[0015] The on-site industrial computer is further configured to generate a burning instruction according to the first two-dimensional code information;

[0016] The second product detection component is further configured to burn a QR code on the bottom surface of the product to be detected according to the burning instruction.

[0017] Preferably, the inspection system further comprises a defective product rejection component, and the defective product rejection component is arranged on one side of the end of the conveyor belt;

[0018] The product placement area has a first opening and a second opening on opposite sides, the width of the first opening is equal to the maximum width of the product placement area, the width of the second opening is smaller than the maximum width of the product placement area, and the opening directions of the first opening and the second opening are both perpendicular to the moving direction of the conveyor belt;

[0019] The unqualified product rejection assembly is configured to push unqualified products to be inspected out of the product placement area through the first opening.

[0020] Preferably, the second product detection component is further configured to obtain second two-dimensional code information of the bottom surface two-dimensional code after the two-dimensional code is burned on the bottom surface of the product to be detected, and send the second two-dimensional code information to the on-site industrial computer;

[0021] The on-site industrial computer is further configured to generate a secondary information acquisition instruction after acquiring the second two-dimensional code information;

[0022] The first product detection component is further configured to obtain third two-dimensional code information of the two-dimensional code on the top surface of the product to be detected, and feed it back to the on-site industrial control computer;

[0023] The on-site industrial computer is further configured to determine whether the second two-dimensional code information and the third two-dimensional code information both meet the preset requirements; if the second two-dimensional code information and / or the third two-dimensional code information do not meet the preset requirements, generate a rejection instruction;

[0024] The unqualified product rejection component is also configured to reject the corresponding product to be inspected from the conveyor belt according to the rejection instruction.

[0025] Preferably, the first product detection component further comprises:

[0026] A first code reader, the first code reader comprising a first photoelectric detection switch, the first code reader being arranged at one side of the conveyor belt, the first code reader being arranged at an end away from the unqualified product rejection component, the first code reader being configured to obtain the first two-dimensional code information of the top surface of the product to be detected through the first photoelectric detection switch, and to send the first two-dimensional code information to the on-site industrial computer;

[0027] A second code reader, the second code reader includes a second photoelectric detection switch, the second code reader is arranged on the same side as the first code reader, the second code reader is arranged between the first code reader and the unqualified product rejection component, and the second code reader is configured to obtain the third two-dimensional code information on the top surface of the product to be inspected through the second photoelectric detection switch, and feed back the third two-dimensional code information to the on-site industrial computer.

[0028] Preferably, the second product detection component comprises:

[0029] A two-dimensional code burning machine, the two-dimensional code burning machine is arranged on a side of the conveyor belt away from the first code reader, the two-dimensional code burning machine is arranged at an end away from the unqualified product rejection component, and the two-dimensional code burning machine is configured to burn a two-dimensional code on the bottom surface of the product to be inspected through the through hole of the conveyor belt;

[0030] A third code reader, the third code reader includes a third photoelectric detection switch, the third code reader is arranged on the same side as the two-dimensional code burning machine, the third code reader is arranged between the two-dimensional code burning machine and the unqualified product rejection component, and the third code reader is configured to obtain the second two-dimensional code information of the bottom two-dimensional code through the third photoelectric detection switch, and feed back the second two-dimensional code information to the on-site industrial computer.

[0031] Preferably, the first code reader and the second code reader are respectively arranged above the corresponding product stations on one side of the conveyor belt along the direction of the conveyor belt, and the QR code burning machine and the third code reader are respectively arranged below the corresponding product stations on the other side of the conveyor belt along the direction of the conveyor belt.

[0032] Preferably, the conveying assembly further comprises a limiter, the limiter is arranged on one side of the conveyor belt, and the limiter is configured to limit the product to be detected in the product placement area;

[0033] The stopper comprises:

[0034] A blocking rod, the blocking rod is arranged at one side of the product station, the blocking rod is arranged at the same side as the first opening, and the blocking rod extends to the front of the product station corresponding to the position of the unqualified product rejection component;

[0035] A fixing block is arranged on a side of the blocking rod away from the product station.

[0036] Preferably, the conveying component includes a production line operating table, and the conveyor belt is arranged on the production line operating table.

[0037] As can be seen from the above content, the present application provides a product QR code burning inspection system, the inspection system includes a conveying component, the conveying component is used to convey the product to be inspected, the conveying component includes a conveyor belt, the outer surface of the conveyor belt is evenly distributed with a number of product stations along the conveying direction, and a conveyor belt through hole is provided on the conveyor belt corresponding to each product station. When the product to be inspected is located in the product station, the conveyor belt through hole is completely blocked by the product to be inspected; a first product detection component, the first product detection component is arranged on one side of the conveyor belt, and the first product detection component is configured to obtain the first QR code information on the top surface of the product to be inspected; a second product detection component, the second product detection component is arranged on the side of the conveyor belt away from the first product detection component, and the second product detection component is configured to burn a QR code for the bottom surface of the product to be inspected and obtain the second QR code information; an on-site industrial computer, the on-site industrial computer is configured to determine whether the product to be inspected is qualified according to the QR code information obtained by the first product detection component and the second product detection component. The present application solves the problem that the existing conveyor belt cannot simultaneously transport and collect information for products of special shapes through the above detection system. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0039] Figure 1 This is a schematic diagram of a product QR code burning inspection system for this application. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0041] Figure 1 This is a schematic diagram of a product QR code burning inspection system for this application.

[0042] See also Figure 1 It can be seen that this embodiment provides a product two-dimensional code burning inspection system, and the inspection system includes:

[0043] The conveying assembly 100 is used to convey the product to be inspected. The conveying assembly 100 includes a conveyor belt 110. The outer surface of the conveyor belt 110 is evenly distributed with a plurality of product stations 120 along the conveying direction. A conveyor belt through hole 130 is provided on the conveyor belt 110 corresponding to each product station 120. When the product to be inspected is located in the product station 120, the conveyor belt through hole 130 is completely blocked by the bottom surface of the product to be inspected. Specifically, in this embodiment, the conveying assembly 100 is used to hold and transport the product to be inspected, wherein the product to be inspected is placed on the product station 120 of the conveyor belt 110. When the product to be inspected is placed on the product station 120, the product to be inspected completely covers the conveyor belt through hole 130 on the conveyor belt 110. The conveyor belt through hole 130 is used to provide a burning space for burning a QR code for the product to be inspected.

[0044] The inspection system further includes a first product inspection component 200, which is disposed above the conveyor belt 110 and is configured to obtain first two-dimensional code information on the top surface of the product to be inspected. Specifically, in this embodiment, the first product inspection component 200 is used to obtain first two-dimensional code information on the top surface of the product to be inspected. The first, second, etc. serial numbers are added to the two-dimensional code information to distinguish different two-dimensional codes on both sides of the product to be inspected.

[0045] The inspection system further includes a second product inspection component 300, which is disposed below the conveyor belt 110. The second product inspection component 300 is configured to burn a QR code on the bottom surface of the product to be inspected and obtain the second QR code information. Specifically, in this embodiment, the second product inspection component 300 is used to burn a QR code on the bottom surface of the product to be inspected and obtain the second QR code information on the bottom surface of the product to be inspected. It should be noted that the first product inspection component 200 and the second product inspection component 300 are respectively disposed on both sides of the product to be inspected, i.e., the top and the bottom, so as to obtain the QR code information on the front and back sides of the product to be inspected and burn a QR code on the side of the product to be inspected that needs to be burned with a QR code.

[0046] It should be noted that the second product detection component 300 can obtain the second two-dimensional code only after completing burning the two-dimensional code on the product to be detected.

[0047] Exemplarily, the first product detection component 200 is arranged above the conveyor belt 110 and corresponds to the product to be detected. The second product detection component 300 is arranged below the conveyor belt 110. The first product detection component 200 first obtains the QR code information above the product to be detected. After receiving the information obtained by the first product detection component 200, the second product detection component 300 burns the QR code below the product to be detected and obtains the QR code information of the QR code below. In this way, the QR code of the product can be burned and the QR code information of the product can be obtained while the product is being transported.

[0048] The inspection system further includes an on-site industrial computer 400, which is configured to determine whether the product to be inspected is qualified according to the two-dimensional code information obtained by the first product inspection component 200 and the second product inspection component 300. Specifically, in this embodiment, the on-site industrial computer 400 is used to determine whether the two-dimensional code information obtained by the first product inspection component 200 and the second product inspection component 300 is readable, so as to determine whether the product to be inspected is qualified.

[0049] Furthermore, in some embodiments, the product station 120 includes at least two protrusions 121, and the protrusions 121 form a product placement area. The projection of the central axis of the conveyor belt through hole 130 in the product placement area coincides with the center of the minimum inscribed circle of the product placement area. Specifically, in this embodiment, a plurality of protrusions 121 are arranged on the product station 120, and these protrusions 121 form a product placement area for placing the product to be inspected. The product placement area can avoid the problem of incomplete QR code burning due to the relative movement between special-shaped products and the conveyor belt 110.

[0050] Among them, by further limiting the positional relationship between the product placement area and the conveyor belt through hole 130, the QR code can be better burned on the product to be inspected.

[0051] Furthermore, in some embodiments, the first product detection component 200 is further configured to obtain the first two-dimensional code information of the top surface of the product to be detected, and send the first two-dimensional code information to the on-site industrial computer 400; the on-site industrial computer 400 is further configured to generate a burning instruction according to the first two-dimensional code information; the second product detection component 300 is further configured to burn a two-dimensional code for the bottom surface of the product to be detected according to the burning instruction. Specifically, in this embodiment, after obtaining the first two-dimensional code information, the first product detection component 200 sends it to the on-site industrial computer 400 for data processing, and after obtaining the first two-dimensional code information, the on-site industrial computer 400 generates a burning instruction for driving the second product detection component 300 to burn a two-dimensional code on the bottom surface of the product to be detected.

[0052] Further, in some embodiments, the inspection system also includes an unqualified product rejection component 500, which is arranged on one side of the end of the conveyor belt 110; the product placement area has a first opening and a second opening on opposite sides, the width of the first opening is equal to the maximum width of the product placement area, the width of the second opening is less than the maximum width of the product placement area, and the opening directions of the first opening and the second opening are perpendicular to the movement direction of the conveyor belt 110; the unqualified product rejection component 500 is configured to push the unqualified product to be inspected out of the product placement area through the first opening. Specifically, in this embodiment, considering that when the on-site industrial computer 400 detects an unqualified product, the unqualified product is still on the conveyor belt 110, which will affect subsequent product inspections, the unqualified product rejection component 500 is also arranged on one side of the conveyor belt 110, and the first opening and the second opening for rejecting the unqualified product are arranged on both sides of the product placement area. When an unqualified product appears, the unqualified product rejection component 500 is used to push the unqualified product out of the conveyor belt 110 through the first opening and the second opening.

[0053] Further, in some embodiments, the second product detection component 300 is also configured to obtain the second two-dimensional code information of the bottom surface two-dimensional code after the two-dimensional code is burned on the bottom surface of the product to be detected, and send the second two-dimensional code information to the on-site industrial computer 400; the first product detection component 200 is also configured to obtain the third two-dimensional code information of the top surface two-dimensional code of the product to be detected, and feed it back to the on-site industrial computer 400; the on-site industrial computer 400 is also configured to determine whether the second two-dimensional code information and the third two-dimensional code information both meet the preset requirements. Specifically, in this embodiment, the detection system completes the process of burning the two-dimensional code on the product to be detected, obtaining the two-dimensional code information, and determining whether the product to be detected is qualified as follows:

[0054] First, the first product detection component 200 first obtains the first two-dimensional code information of the two-dimensional code on one side of the product to be detected, and sends the first two-dimensional code information obtained for the first time to the on-site industrial computer 400. After the on-site industrial computer 400 receives the first two-dimensional code information, it generates a burning instruction. The second product detection component 300 burns the two-dimensional code on the bottom surface of the product to be detected according to the burning instruction, and obtains the second two-dimensional code information of the two-dimensional code after the burning is completed, and sends the second two-dimensional code information to the on-site industrial computer 400. The first product detection component 200 generates the first two-dimensional code information of the product to be detected according to the first two-dimensional code information. The third two-dimensional code information on the top surface of the product is fed back to the on-site industrial computer 400, and the on-site industrial computer 400 determines whether the second two-dimensional code information and the third two-dimensional code information are both readable. When both information meet the requirements, the corresponding product to be inspected is determined to be a qualified product. If the second two-dimensional code information and / or the third two-dimensional code information does not meet the preset requirements, a rejection instruction is generated by the on-site industrial computer 400, and the unqualified product rejection component 500 rejects the corresponding product to be inspected from the conveyor belt 110 according to the rejection instruction.

[0055] Further, in some embodiments, the first product detection component 200 further includes a first code reader 210. The first code reader 210 includes a first photoelectric detection switch. The first code reader 210 is disposed on one side of the conveyor belt 110. The first code reader 210 is disposed at an end away from the unqualified product rejection component 500. The first code reader 210 is configured to obtain the first two-dimensional code information of the top surface of the product to be detected through the first photoelectric detection switch, and send the first two-dimensional code information to the on-site industrial computer 400. Specifically, in this embodiment, the first code reader 210 is used to complete the first acquisition of the first two-dimensional code information of the two-dimensional code of the top surface of the product to be detected.

[0056] It should be noted that the first photoelectric detection switch has an automatic triggering function, that is, the QR code information of the product to be detected is automatically obtained when the product to be detected reaches a specified position.

[0057] The first product detection component 200 further includes a second code reader 220, the second code reader 220 includes a second photoelectric detection switch, the second code reader 220 is arranged on the same side as the first code reader 210, the second code reader 220 is arranged between the first code reader 210 and the unqualified product rejection component 500, and the second code reader 220 is configured to obtain the third two-dimensional code information of the top surface of the product to be detected through the second photoelectric detection switch, and feed the third two-dimensional code information back to the on-site industrial computer 400. Specifically, in this embodiment, the second code reader 220 is used to complete the second acquisition of the third two-dimensional code information of the two-dimensional code on the top surface of the product to be detected.

[0058] It should be noted that the second photoelectric detection switch has an automatic triggering function, that is, the two-dimensional code information of the product to be detected is automatically obtained when the product to be detected reaches a specified position.

[0059] Furthermore, in some embodiments, the second product detection component 300 includes a two-dimensional code burning machine 310, which is arranged on the side of the conveyor belt 110 away from the first code reader 210, and the two-dimensional code burning machine 310 is arranged at an end away from the unqualified product rejection component 500, and the two-dimensional code burning machine 310 is configured to burn a two-dimensional code on the bottom surface of the product to be detected through the conveyor belt through hole 130. Specifically, in this embodiment, the two-dimensional code burning machine 310 is used to burn a two-dimensional code on the bottom surface of the product to be detected.

[0060] The second product detection component 300 further includes a third code reader 320, the third code reader 320 includes a third photoelectric detection switch, the third code reader 320 is arranged on the same side as the two-dimensional code burning machine 310, the third code reader 320 is arranged between the two-dimensional code burning machine 310 and the unqualified product rejection component 500, and the third code reader 320 is configured to obtain the second two-dimensional code information of the bottom two-dimensional code through the third photoelectric detection switch, and feed the second two-dimensional code information back to the on-site industrial computer 400. Specifically, in this embodiment, the third code reader 320 is used to obtain the second two-dimensional code information of the burned two-dimensional code after the two-dimensional code burning machine 310 completes burning the two-dimensional code.

[0061] It should be noted that the third photoelectric detection switch has an automatic triggering function, that is, the QR code information of the product to be detected is automatically obtained when the product to be detected reaches a specified position.

[0062] Further, in some embodiments, the conveying component 100 also includes a limiter 150, which is arranged on the production line operating table 140, and the limiter 150 is configured to limit the product to be inspected in the product placement area; the limiter 150 includes a blocking rod 151, which is arranged on one side of the product station 120, and the blocking rod 151 is arranged on the same side as the first opening, and the blocking rod 151 extends to the front of the product station 120 corresponding to the position of the unqualified product rejection component 500; a fixed block 152, which is arranged on the side of the blocking rod 151 away from the product station 120. Specifically, in this embodiment, in order to prevent the product that has not completed the inspection from leaving the conveyor belt 110, the limiter 150 is arranged on one side of the conveyor belt 110, and the product to be inspected is limited by the blocking rod 151 in the limiter 150, and the blocking rod 151 is fixed by the fixed block 152.

[0063] The conveyor belt 110 , the unqualified product rejection component 500 and the limiter 150 are all arranged on the production line operating table 140 of the conveying component 100 .

[0064] Illustratively, in this embodiment, on a traditional conveyor belt, a "hexagonal protrusion" shape is fixed at a fixed interval, for example, twice the outer diameter length of the "special shaped product", and its inner diameter is slightly larger than the outer diameter of the "hexagonal can cover", so that the "hexagonal can cover" can be easily placed in the "hexagonal protrusion" on the conveyor belt.

[0065] In the center of each "hexagonal protrusion" on the conveyor belt, there is a through circular hole for the "inner cover QR code burning machine" to burn the QR code on the inner cover of the can from below. The outer diameter of the hole must be large enough to ensure that the burned inner cover QR code can be easily read by the "QR code reader" while ensuring that the "hexagonal can cover" is placed on the conveyor belt. Stability.

[0066] The "hexagonal protrusion" on the conveyor belt has an opening at one end near the edge of the conveyor belt as designed. Figure 1 When the digital information of "special shape products" cannot be read, the "unqualified product rejection mechanism" can be used at the rear end of the conveyor belt to reject the transmitted "special shape products".

[0067] During the normal transmission of "special-shaped products", a "blocking rod" is provided on one side of the opening of the "hexagonal protrusion" to prevent the "special-shaped products" from slipping out of the "hexagonal protrusion" due to vibration during transmission on the conveyor belt.

[0068] After the digital information collection of "special shape products" is completed, the "product production information management system" on the on-site industrial computer can successfully match the internal and external code information of the effectively collected "special shape products", and accurately associate and correspond with the data of the packaging box, thereby realizing the digital management of production products.

[0069] This embodiment has the following advantages:

[0070] It improves the efficiency of product digital coding, digital reading and collection, avoids manual collection and matching of product digital information, is suitable for the requirements of fast and automatic information collection and matching of "special shape products", and removes products that fail to read information successfully on site, ensuring that product digital information collection and matching are 100% effective, making product digital information management more accurate.

Claims

1. A product two-dimensional code burning inspection system, characterized in that: The inspection system comprises: A conveying assembly (100), the conveying assembly (100) being used to convey a product to be inspected, the conveying assembly (100) comprising a conveyor belt (110), a plurality of product stations (120) being evenly distributed on the outer surface of the conveyor belt (110) along the conveying direction, a conveyor belt through hole (130) being provided on the conveyor belt (110) corresponding to each product station (120), and when the product to be inspected is located in the product station (120), the conveyor belt through hole (130) is completely blocked by the bottom surface of the product to be inspected; A first product detection component (200), the first product detection component (200) being arranged above the conveyor belt (110), the first product detection component (200) being configured to obtain first two-dimensional code information on the top surface of the product to be inspected; A second product detection component (300), the second product detection component (300) being arranged below the conveyor belt (110), the second product detection component (300) being configured to burn a two-dimensional code on the bottom surface of the product to be inspected and to obtain second two-dimensional code information; An on-site industrial computer (400), wherein the on-site industrial computer (400) is configured to determine whether the product to be inspected is qualified based on the two-dimensional code information obtained by the first product detection component (200) and the second product detection component (300).

2. A product two-dimensional code burning inspection system according to claim 1, characterized in that: The product station (120) comprises at least two protrusions (121), and a product placement area is enclosed between the protrusions (121); the orthographic projection of the central axis of the conveyor belt through hole (130) in the product placement area coincides with the center point of the minimum inscribed circle of the product placement area.

3. A product two-dimensional code burning inspection system according to claim 2, characterized in that: The first product detection component (200) is also configured to obtain first two-dimensional code information on the top surface of the product to be detected, and send the first two-dimensional code information to the on-site industrial control computer (400); The on-site industrial computer (400) is also configured to generate a burning instruction according to the first two-dimensional code information; The second product detection component (300) is also configured to burn a two-dimensional code on the bottom surface of the product to be detected according to the burning instruction.

4. A product two-dimensional code burning inspection system according to claim 3, characterized in that: The inspection system further comprises a defective product rejection component (500), wherein the defective product rejection component (500) is arranged on one side of the end of the conveyor belt (110); The product placement area has a first opening and a second opening on opposite sides, the width of the first opening is equal to the maximum width of the product placement area, the width of the second opening is smaller than the maximum width of the product placement area, and the opening directions of the first opening and the second opening are both perpendicular to the moving direction of the conveyor belt (110); The unqualified product rejection component (500) is configured to push unqualified products to be inspected out of the product placement area through the first opening.

5. A product two-dimensional code burning inspection system according to claim 4, characterized in that: The second product detection component (300) is further configured to obtain second two-dimensional code information of the bottom surface two-dimensional code after the two-dimensional code is burned on the bottom surface of the product to be detected, and send the second two-dimensional code information to the on-site industrial control computer (400); The first product detection component (200) is further configured to obtain third two-dimensional code information of the two-dimensional code on the top surface of the product to be detected, and feed it back to the on-site industrial control computer (400); The on-site industrial computer (400) is further configured to determine whether the second two-dimensional code information and the third two-dimensional code information both meet preset requirements; if the second two-dimensional code information and / or the third two-dimensional code information do not meet the preset requirements, a rejection instruction is generated; The unqualified product rejection component (500) is also configured to reject the corresponding product to be inspected from the conveyor belt (110) according to the rejection instruction.

6. A product two-dimensional code burning inspection system according to claim 5, characterized in that: The first product detection component (200) further comprises: a first code reader (210), the first code reader (210) comprising a first photoelectric detection switch, the first code reader (210) being arranged on one side of the conveyor belt (110), the first code reader (210) being arranged at an end away from the unqualified product rejection component (500), the first code reader (210) being configured to obtain the first two-dimensional code information on the top surface of the product to be detected through the first photoelectric detection switch, and to send the first two-dimensional code information to the on-site industrial control computer (400); A second code reader (220), wherein the second code reader (220) comprises a second photoelectric detection switch, the second code reader (220) is arranged on the same side as the first code reader (210), the second code reader (220) is arranged between the first code reader (210) and the unqualified product rejection component (500), and the second code reader (220) is configured to obtain the third two-dimensional code information on the top surface of the product to be detected through the second photoelectric detection switch, and feed back the third two-dimensional code information to the on-site industrial computer (400).

7. A product two-dimensional code burning inspection system according to claim 6, characterized in that: The second product detection component (300) comprises: A two-dimensional code burning machine (310), the two-dimensional code burning machine (310) being arranged on a side of the conveyor belt (110) away from the first code reader (210), the two-dimensional code burning machine (310) being arranged at an end away from the unqualified product rejection component (500), and the two-dimensional code burning machine (310) being configured to burn a two-dimensional code on the bottom surface of the product to be inspected through the conveyor belt through hole (130); A third code reader (320), the third code reader (320) comprising a third photoelectric detection switch, the third code reader (320) being arranged on the same side as the two-dimensional code burning machine (310), the third code reader (320) being arranged between the two-dimensional code burning machine (310) and the unqualified product rejection component (500), the third code reader (320) being configured to obtain the second two-dimensional code information of the bottom two-dimensional code through the third photoelectric detection switch, and to feed back the second two-dimensional code information to the on-site industrial control computer (400).

8. A product two-dimensional code burning inspection system according to claim 7, characterized in that: The first code reader (210) and the second code reader (220) are respectively arranged above a corresponding product station (120) on one side of the conveyor belt (110) along the direction of the conveyor belt (110), and the two-dimensional code burning machine (310) and the third code reader (320) are respectively arranged below a corresponding product station (120) on the other side of the conveyor belt (110) along the direction of the conveyor belt (110).

9. A product two-dimensional code burning inspection system according to claim 8, characterized in that: The conveying assembly (100) further comprises a stopper (150), wherein the stopper (150) is arranged on one side of the conveying belt (110), and the stopper (150) is configured to limit the position of the product to be detected in the product placement area; The stopper (150) comprises: a blocking rod (151), the blocking rod (151) being arranged on one side of the product station (120), the blocking rod (151) being arranged on the same side as the first opening, and the blocking rod (151) extending to the front of the product station (120) corresponding to the location of the unqualified product rejection component (500); A fixing block (152), wherein the fixing block (152) is arranged on a side of the blocking rod (151) away from the product station (120).

10. A product two-dimensional code burning inspection system according to claim 1, characterized in that: The conveying assembly (100) comprises a production line operating table (140), and the conveyor belt (110) is arranged on the production line operating table (140).

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