Movable visual inspection device for cleanliness of box cover of tobacco shred box

Abstract

The utility model discloses a movable visual inspection device for the cleanliness of a box cover of a tobacco shred box. The movable visual inspection device comprises a fixed seat, a terminal box, an air cylinder assembly, a rotating shaft assembly, a camera assembly, an ash removal air knife assembly and the like. The device drives the rotating arm through the air cylinder to drive the camera assembly to be accurately positioned to the monitoring position, and cleanliness detection of the tobacco shred box cover is achieved; and the dust removal air knife effectively removes dust and foreign matters by using high-speed airflow, so that the cleanliness of the camera assembly is guaranteed, and the detection precision is improved. The device is compact in design, adapts to the limited space of a production line, and can accurately detect and avoid the motion trail of the robot, thereby ensuring the smooth operation of the production line. The device not only improves the insect pest prevention capability of the tobacco, but also has wide popularization and application values, can be popularized to areas needing cleanliness detection in the same industry, and provides powerful support for improving the production efficiency and the product quality.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco equipment, in particular to a movable visual detection device for the cleanliness of a tobacco box cover. Background Art

[0002] In modern tobacco shred production lines, the box-type shred storage system is a key component, its operational efficiency directly linked to product quality. The new-generation GARBUIO linear packing station, with its efficient and precise packing capabilities, has gained widespread adoption within the industry. This system utilizes nine-point packing technology, which distributes the tobacco shreds in layers by cumulative weight, ensuring even distribution within the box, significantly improving packing accuracy and efficiency. However, this technology also presents some challenges in actual production.

[0003] Specifically, during the nine-point packing process, due to the accumulation of materials in the box and the change of the direction of the fabric (odd-numbered layers with forward fabric and even-numbered layers with reverse fabric), there is uncertainty in the distribution of tobacco in the box when the packing is completed, especially at the last stopping point where a small peak is easily formed. When the box moves to the position where the box lid is covered, the tobacco at these small peaks is flattened and pressed by the box lid, and then is subjected to greater pressure when the two boxes are stacked, which easily causes the tobacco to be clamped by the box lid. These entrained tobacco that has not been discovered in time not only affects the appearance and neatness of the box, but more importantly, provides a breeding ground for tobacco insects, posing a serious threat to product quality. Therefore, in order to ensure the quality and safety of tobacco products, it is necessary to strictly test the cleanliness of the tobacco box lid after the empty box is cleaned.

[0004] Manual visual inspection is not only inefficient but also easily influenced by subjective factors, making it difficult to ensure the accuracy and consistency of inspection. Although the use of machine vision technology can realize the automatic inspection of the cleanliness of the smoke box cover, there are still some challenges in its actual production line application. Due to the limited space of the production line, any new equipment or inspection device must be carefully planned to ensure that it does not affect the overall operation of the production line. At the same time, the robot loading and unloading box cover station (see Figure 1 ) In such a space-constrained environment, the clamped smoke box cover is located within the safety fence and the working area is 4.2m high. Traditional fixed detection devices are often difficult to install and are prone to interfere with robots or other equipment on the production line, affecting the smoothness and safety of the production line.

[0005] Therefore, there is an urgent need to develop a new type of movable visual inspection device for the cleanliness of the tobacco box cover. When inspection is required, the device can quickly move to the designated position and use the visual inspection system to accurately photograph and analyze the cleanliness of the tobacco box cover; when not inspecting, the device automatically retreats to the preset avoidance area, fully considering the need to avoid the robot's motion trajectory, without affecting the normal operation of other equipment on the production line, and flexibly taking pictures of the tobacco box cover for inspection. Utility Model Content

[0006] In view of the work needs and existing problems in the above-mentioned background technology, the present invention has been considered and innovated, with the aim of providing a movable visual inspection device for the cleanliness of the tobacco box cover, which is used for flexible movement of the tobacco production line and visual inspection of the cleanliness of the tobacco box cover.

[0007] In order to solve the above problems and achieve the above objectives, the present invention adopts the following technical solutions:

[0008] A movable visual inspection device for the cleanliness of a tobacco box cover comprises a power supply, a control system, a visual inspection system, and a visual inspection device body (1). The visual inspection device body (1) is detachably connected to a bracket (2). The device comprises:

[0009] A fixing seat (11), the fixing seat (11) is detachably connected to the bracket (2) by bolts, the fixing seat (11) is composed of a rectangular plate and two mounting columns, and the rectangular plate has at least three groups of six bolt holes;

[0010] A terminal box (12), the terminal box (12) being fixedly connected to one of the mounting posts of the fixing base (11) and being used for mounting a module of the control system;

[0011] The cylinder connecting seat (13) is detachably connected to another mounting column of the fixing seat (11) by bolts. The cylinder connecting seat (13) is composed of a rectangular plate and an "L"-shaped connecting piece with a plurality of bolt holes. The "L"-shaped connecting piece is further connected to a reinforcing rib.

[0012] A cylinder mounting base (14), wherein the cylinder mounting base (14) is composed of a rectangular plate and two ear plates, each ear plate having a bolt hole;

[0013] A cylinder assembly (15), wherein the cylinder assembly (15) is detachably connected to the cylinder mounting seat (14) via bolts;

[0014] A rotating shaft assembly (16), wherein the rotating shaft assembly (16) is fixedly connected to two mounting columns of the fixing base (11);

[0015] A rotating arm (17), one end of which is detachably connected to the rotating shaft assembly (16) via a bolt, and the rotating arm (17) is provided with a plurality of circular mounting holes and strip-shaped mounting holes;

[0016] A camera assembly (18), wherein the camera assembly (18) is mounted on one end of the rotating arm (17);

[0017] A dust cleaning air knife assembly (19) is detachably connected to the camera assembly (18) on the rotating arm (17) by means of bolts.

[0018] As a preferred solution of the present utility model, the cylinder assembly (15) comprises:

[0019] A cylinder (151), wherein the cylinder (151) is connected between two ear plates of the cylinder mounting seat (14) by bolts;

[0020] A cylinder floating machine head (152), one end of which is connected to the piston rod of the cylinder (151), and the other end of which is connected to the rotating shaft assembly (16);

[0021] The cylinder drives the electromagnetic valve (153), which is connected to the mounting column of the fixing seat (11) and is connected to the cylinder (151).

[0022] As a preferred solution of the present utility model, the rotating shaft assembly (16) includes:

[0023] A bearing seat (161), wherein the bearing seat (161) comprises two pieces, each of which is detachably connected to the outer sides of the two transverse plates of the rotating shaft mounting seat (164) by bolts, and each bearing seat (161) has a circular shaft mounting hole and four screw holes;

[0024] A rotating shaft (162), the rotating shaft (162) sequentially passing through the bearing seat (161), the rotating arm fixing member (163), and the shaft mounting hole on the rotating shaft mounting seat (164) for installation and fixation;

[0025] The rotating arm fixing member (163) comprises two rotating arm fixing members (163) which are detachably connected to both sides of the rotating arm (17) by bolts. The rotating arm fixing members (163) are composed of a mounting plate and a sleeve. Each mounting plate has a circular shaft mounting hole and four screw holes.

[0026] The rotating shaft mounting seat (164) is fixedly connected to the two mounting posts of the fixed seat (11). The rotating shaft mounting seat (164) is composed of a rectangular plate and two transverse plates, and each transverse plate has a circular shaft mounting hole and four screw holes.

[0027] As a preferred solution of the utility model, the rotating arm (17) is connected to an origin limiting seat (171), and a pressure sensor for limiting the rotating arm (17) is installed on the origin limiting seat (171).

[0028] As a preferred solution of the present utility model, the camera assembly (18) includes:

[0029] A camera (181), wherein the camera (181) is fixed to the rotating arm (17) via a fixing member (184) and bolts;

[0030] a lens (182), wherein the lens (182) is mounted on the camera (181);

[0031] A dustproof plate (183), wherein the dustproof plate (183) is detachably connected to a side of the rotating arm (17) facing the lens (182) via bolts;

[0032] There are two fixing members (184) in total. The fixing members (184) are in an "L" shape as a whole. Each fixing member (184) has two circular screw holes at one end and two waist-shaped holes at the other end.

[0033] As a preferred embodiment of the present invention, the dust cleaning air knife assembly (19) comprises:

[0034] A connecting plate (191), the connecting plate (191) is detachably connected to the camera assembly (18) on the rotating arm (17) by means of bolts, and the connecting plate (191) has a plurality of screw holes at one end and a waist-shaped hole at the other end;

[0035] A dust cleaning air knife (192), wherein the dust cleaning air knife (192) is detachably connected to the connecting plate (191) via bolts;

[0036] A solenoid valve (193) for driving the dust-cleaning air knife is connected to the mounting column of the fixing seat (11) and is connected to the dust-cleaning air knife (192).

[0037] The working principle of the present invention is as follows: the visual inspection device body (1) is detachably connected to the bracket (2) on the production line through the fixing seat (11), which is convenient for installation, debugging and maintenance; the cylinder assembly (15) provides power for the rotation of the rotating arm (17), ensuring that the rotating arm (17) can rotate smoothly and accurately, thereby driving the camera assembly (18) and the dust cleaning air knife assembly (19) on the rotating arm (17) to perform circular motion; according to the process design of the control system, when inspection is required, the control system sends a signal to the cylinder drive solenoid valve (153), and the cylinder drive solenoid valve (153) drives the cylinder assembly (15) to control the rotation of the rotating arm (17), thereby driving the camera assembly (18) on the rotating arm (17) to move to the bottom of the clamped tobacco box cover (31), and then the tobacco box cover (31) is inspected by using the camera assembly (18) and the visual inspection system. The system performs accurate photography and cleanliness analysis. After receiving a photography completion signal, the control system sends a signal to the cylinder drive solenoid valve (153), thereby controlling the rotating arm (17) to rotate and return to a preset avoidance area. The rotating arm (17) is provided with an origin limit seat (171) and a pressure sensor for limiting the rotating arm (17). When the origin limit seat (171) rotates and touches the bracket (2) and the pressure received reaches a threshold, the pressure sensor transmits a signal to the control system, and the rotating arm (17) stops rotating, ensuring that it can return to the same reference point after each inspection. The cleaning air knife (192) of the cleaning air knife assembly (19) can be cleaned regularly or manually through the control system according to actual production needs. The cleaning air knife (192) uses high-speed airflow to blow the surface of the dustproof plate (183) to effectively remove dust and foreign matter and maintain the cleanliness of the camera assembly (18).

[0038] Beneficial effects of the utility model:

[0039] 1. This utility model offers high space utilization and strong adaptability: The detachable design of the mounting bracket not only facilitates installation, commissioning, and maintenance, but also significantly improves the space utilization of the production line. When space is limited on the production line, the device can be flexibly moved to the inspection position and retreated to a pre-set avoidance area when not in use, avoiding interference with other equipment on the production line and ensuring smooth operation.

[0040] 2. The utility model has accurate detection and high degree of automation: it uses a high-precision camera component to take pictures, and combines the visual inspection system to accurately analyze the tobacco box cover, which can accurately identify the cleanliness of the box cover surface. The cleaning air knife component effectively removes dust and foreign matter, maintains the cleanliness of the camera component, further improves the accuracy and reliability of detection, reduces manual intervention, and improves detection efficiency.

[0041] 3. The utility model improves production efficiency and product quality: by real-time detection of the cleanliness of the tobacco box cover, problems are discovered and dealt with in a timely manner, avoiding the risk of insect infestation due to box cover contamination and improving product quality; and because the device is highly automated and flexible, it can perform detection and cleaning without affecting the normal operation of the production line, reducing production losses caused by downtime. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the process of the robot removing the tobacco box cover and being clamped by the clamping device;

[0043] Figure 2 This is one of the working state diagrams of the visual inspection device of the utility model;

[0044] Figure 3 This is the second schematic diagram of the working state of the visual inspection device of the utility model;

[0045] Figure 4 This is a schematic diagram of the installation of the visual inspection device of the utility model;

[0046] Figure 5 This is one of the overall three-dimensional structural diagrams of the visual inspection device of the utility model;

[0047] Figure 6 This is the second schematic diagram of the overall three-dimensional structure of the visual inspection device of the present invention;

[0048] Figure 7 It is a three-dimensional structural diagram of the camera assembly and the dust cleaning air knife assembly;

[0049] Among them, the numbers in the figure are: 1—visual inspection device body, 11—fixing seat, 12—terminal box, 13—cylinder connecting seat, 14—cylinder mounting seat, 15—cylinder assembly, 151—cylinder, 152—cylinder floating head, 153—cylinder drive solenoid valve; 16—rotating shaft assembly, 161—bearing seat, 162—rotating shaft, 163—rotating arm fixing component, 164—rotating shaft mounting seat; 17—rotating arm, 171—origin limit seat, 18—camera assembly, 181—camera, 182—lens, 183—dustproof plate, 184—fixing part; 19—ash cleaning air knife assembly, 191—connecting plate, 192—ash cleaning air knife, 193—ash cleaning air knife drive solenoid valve; 2—bracket; 3—tobacco box; 31—tobacco box cover; 4—manipulator; 5—tobacco box cover clamping device. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solutions and advantages of the present utility model patent more clear, the present utility model patent is further described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present utility model patent. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present utility model patent.

[0051] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0052] like Figure 4 — Figure 7 The movable visual inspection device for the cleanliness of a tobacco box cover shown in the figure includes a power supply, a control system, a visual inspection system, and a visual inspection device body 1. The visual inspection device body 1 is detachably connected to a bracket 2 and includes:

[0053] A fixing base 11, which is detachably connected to the bracket 2 by bolts. The fixing base 11 is composed of a rectangular plate and two mounting posts. The rectangular plate has at least three groups of six bolt holes;

[0054] A terminal box 12, which is fixedly connected to one of the mounting posts of the fixing base 11 and is used to install a module of the control system;

[0055] The cylinder connecting seat 13 is detachably connected to another mounting column of the fixing seat 11 by bolts. The cylinder connecting seat 13 is composed of a rectangular plate and an "L"-shaped connecting piece with a plurality of bolt holes. The "L"-shaped connecting piece is connected to a reinforcing rib;

[0056] The cylinder mounting base 14 is composed of a rectangular plate and two ear plates, each ear plate having a bolt hole;

[0057] A cylinder assembly 15 detachably connected to the cylinder mounting base 14 by bolts;

[0058] A rotating shaft assembly 16, wherein the rotating shaft assembly 16 is fixedly connected to two mounting posts of the fixing base 11;

[0059] A rotating arm 17, one end of which is detachably connected to the rotating shaft assembly 16 by a bolt, and the rotating arm 17 has a plurality of circular mounting holes and strip-shaped mounting holes;

[0060] A camera assembly 18 is mounted on one end of the rotating arm 17;

[0061] The dust cleaning air knife assembly 19 is detachably connected to the camera assembly 18 on the rotating arm 17 by bolts.

[0062] Further, such as Figure 5 、 Figure 6 As shown, the cylinder assembly 15 includes:

[0063] Cylinder 151, said cylinder 151 is connected between two ear plates of the cylinder mounting base 14 by bolts;

[0064] A cylinder floating head 152, one end of which is connected to the piston rod of the cylinder 151, and the other end is connected to the rotating shaft assembly 16;

[0065] The cylinder drives the electromagnetic valve 153 , which is connected to the mounting column of the fixing seat 11 and is connected to the cylinder 151 .

[0066] Furthermore, if Figure 5 、 Figure 6 As shown, the rotating shaft assembly 16 includes:

[0067] The bearing seat 161 consists of two pieces, which are detachably connected to the outer sides of the two horizontal plates of the rotating shaft mounting seat 164 by bolts. Each bearing seat 161 has a circular shaft mounting hole and four screw holes;

[0068] The rotating shaft 162 is installed and fixed through the shaft mounting holes on the bearing seat 161, the rotating arm fixing member 163, and the rotating shaft mounting seat 164 in sequence;

[0069] Rotating arm fixing members 163, two of which are detachably connected to both sides of the rotating arm 17 by bolts. The rotating arm fixing members 163 are composed of a mounting plate and a sleeve. Each mounting plate has a circular shaft mounting hole and four screw holes.

[0070] The rotating shaft mounting seat 164 is fixedly connected to the two mounting posts of the fixing seat 11. The rotating shaft mounting seat 164 is composed of a rectangular plate and two transverse plates. Each transverse plate has a circular shaft mounting hole and four screw holes.

[0071] Specifically, such as Figure 6As shown, the rotating arm 17 is connected to an origin limiting seat 171 , and a pressure sensor for limiting the rotating arm 17 is installed on the origin limiting seat 171 .

[0072] Further, such as Figure 7 As shown, the camera assembly 18 includes:

[0073] A camera 181 is fixed to the rotating arm 17 via a fixing member 184 and bolts;

[0074] a lens 182 , wherein the lens 182 is mounted on the camera 181 ;

[0075] A dustproof plate 183 detachably connected to the side of the rotating arm 17 facing the lens 182 via bolts;

[0076] There are two fixing members 184 in total. The fixing members 184 are "L"-shaped as a whole. Each fixing member 184 has two circular screw holes at one end and two waist-shaped holes at the other end.

[0077] Furthermore, Figure 7 As shown, the dust cleaning air knife assembly 19 includes:

[0078] A connecting plate 191 is detachably connected to the rotating arm 17 next to the camera assembly 18 by bolts. The connecting plate 191 has a plurality of screw holes at one end and a waist-shaped hole at the other end;

[0079] A cleaning air knife 192, the cleaning air knife 192 is detachably connected to the connecting plate 191 by bolts;

[0080] The cleaning air knife drives the solenoid valve 193 , which is connected to the mounting column of the fixing seat 11 and is connected to the cleaning air knife 192 .

[0081] In summary, a more specific embodiment of the present invention is:

[0082] Example 1

[0083] In this embodiment, the dustproof plate 183 is made of a transparent acrylic material.

[0084] First, the visual inspection device body 1 is installed on the bracket 2 on the production line through the fixing seat 11, and preliminary debugging is performed to ensure that all components are operating normally before the equipment is operated.

[0085] like Figure 1 — Figure 3As shown, as the production line process proceeds, the manipulator 4 grabs the tobacco box 3 to the position of the tobacco box cover clamping device 5. After the tobacco box cover clamping device 5 clamps and removes the tobacco box cover 31, the manipulator 4 leaves the tobacco box cover clamping device 5 position, and then the control system sends a signal to the cylinder drive solenoid valve 153. The cylinder drive solenoid valve 153 drives the cylinder assembly 15 to control the rotation of the rotating arm 17, thereby driving the camera assembly 18 on the rotating arm 17 to move to the position directly below the clamped tobacco box cover 31. Further, the camera assembly 18 and the visual inspection The system takes precise photos and performs cleanliness analysis on the tobacco box cover 31. Furthermore, after receiving the photo completion signal, the control system sends a signal to the cylinder drive solenoid valve 153, thereby controlling the rotating arm 17 to rotate back to the preset avoidance area. When the origin limit seat 171 on the rotating arm 17 rotates and touches the bracket 2 and the pressure reaches the threshold, the pressure sensor on the origin limit seat 171 transmits a signal to the control system, and the control system sends a signal to stop the rotating arm 17 from rotating, ensuring that it can return to the same reference point after each inspection.

[0086] Furthermore, the control system is set to send a start signal to the cleaning air knife assembly 19 at a fixed time. After receiving the start signal, the cleaning air knife driving solenoid valve 193 drives the cleaning air knife 192 to start. The cleaning air knife 192 uses high-speed airflow to sweep the surface of the dustproof plate 183, effectively removing dust and foreign matter, and maintaining the cleanliness of the camera assembly 18.

[0087] Finally, based on the analysis results of the visual inspection system, the tobacco boxes 3 whose tobacco box covers 31 do not meet the cleanliness standards are subsequently classified and cleaned.

[0088] It should be understood that the above-described specific embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and do not constitute limitations of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the scope of protection of the present invention. In addition, the appended claims of the present invention are intended to cover all variations and modifications that fall within the scope and metes and bounds of the appended claims, or equivalents thereof.

Claims

1. A movable visual inspection device for the cleanliness of a tobacco box cover, comprising a power supply, a control system, and a visual inspection system, characterized in that: The device further comprises a visual inspection device body (1), wherein the visual inspection device body (1) is detachably connected to a bracket (2), and comprises: A fixing seat (11), the fixing seat (11) is detachably connected to the bracket (2) by bolts, the fixing seat (11) is composed of a rectangular plate and two mounting columns, and the rectangular plate has at least three groups of six bolt holes; A terminal box (12), the terminal box (12) being fixedly connected to one of the mounting posts of the fixing base (11) and being used for mounting a module of the control system; A cylinder connecting seat (13) is detachably connected to another mounting column of the fixing seat (11) by bolts. The cylinder connecting seat (13) is composed of a rectangular plate and an "L"-shaped connecting piece with a plurality of bolt holes. The "L"-shaped connecting piece is further connected to a reinforcing rib. A cylinder mounting base (14), wherein the cylinder mounting base (14) is composed of a rectangular plate and two ear plates, each ear plate having a bolt hole; A cylinder assembly (15), wherein the cylinder assembly (15) is detachably connected to the cylinder mounting seat (14) via bolts; A rotating shaft assembly (16), wherein the rotating shaft assembly (16) is fixedly connected to two mounting columns of the fixing base (11); A rotating arm (17), one end of which is detachably connected to the rotating shaft assembly (16) via a bolt, and the rotating arm (17) is provided with a plurality of circular mounting holes and strip-shaped mounting holes; A camera assembly (18), wherein the camera assembly (18) is mounted on one end of the rotating arm (17); A dust cleaning air knife assembly (19) is detachably connected to the camera assembly (18) on the rotating arm (17) by means of bolts.

2. A movable visual inspection device for cleanliness of tobacco box cover according to claim 1, characterized in that: The cylinder assembly (15) comprises: A cylinder (151), wherein the cylinder (151) is connected between two ear plates of the cylinder mounting seat (14) by bolts; A cylinder floating machine head (152), one end of which is connected to the piston rod of the cylinder (151), and the other end of which is connected to the rotating shaft assembly (16); The cylinder drives the electromagnetic valve (153), which is connected to the mounting column of the fixing seat (11) and is connected to the cylinder (151).

3. A movable visual inspection device for cleanliness of tobacco box cover according to claim 1, characterized in that: The rotating shaft assembly (16) comprises: A bearing seat (161), wherein the bearing seat (161) comprises two pieces, each of which is detachably connected to the outer sides of the two transverse plates of the rotating shaft mounting seat (164) by bolts, and each bearing seat (161) has a circular shaft mounting hole and four screw holes; A rotating shaft (162), the rotating shaft (162) sequentially passing through the bearing seat (161), the rotating arm fixing member (163), and the shaft mounting hole on the rotating shaft mounting seat (164) for installation and fixation; The rotating arm fixing member (163) comprises two rotating arm fixing members (163) which are detachably connected to both sides of the rotating arm (17) by bolts. The rotating arm fixing members (163) are composed of a mounting plate and a sleeve. Each mounting plate has a circular shaft mounting hole and four screw holes. The rotating shaft mounting seat (164) is fixedly connected to the two mounting posts of the fixed seat (11). The rotating shaft mounting seat (164) is composed of a rectangular plate and two transverse plates, and each transverse plate has a circular shaft mounting hole and four screw holes.

4. A movable visual inspection device for cleanliness of tobacco box cover according to claim 1, characterized in that: The rotating arm (17) is connected to an origin limiting seat (171), and a pressure sensor for limiting the rotating arm (17) is installed on the origin limiting seat (171).

5. The movable visual inspection device for cleanliness of tobacco box cover according to claim 1, characterized in that: The camera assembly (18) comprises: A camera (181), wherein the camera (181) is fixed to the rotating arm (17) via a fixing member (184) and bolts; a lens (182), wherein the lens (182) is mounted on the camera (181); A dustproof plate (183), wherein the dustproof plate (183) is detachably connected to a side of the rotating arm (17) facing the lens (182) via bolts; There are two fixing members (184) in total. The fixing members (184) are L-shaped as a whole. Each fixing member (184) has two circular screw holes at one end and two waist-shaped holes at the other end.

6. A movable visual inspection device for cleanliness of tobacco box cover according to claim 1, characterized in that: The dust cleaning air knife assembly (19) comprises: A connecting plate (191), the connecting plate (191) is detachably connected to the camera assembly (18) on the rotating arm (17) by bolts, and the connecting plate (191) has a plurality of screw holes at one end and a waist-shaped hole at the other end; A dust cleaning air knife (192), wherein the dust cleaning air knife (192) is detachably connected to the connecting plate (191) via bolts; A solenoid valve (193) for driving the dust-cleaning air knife is connected to the mounting column of the fixing seat (11) and is connected to the dust-cleaning air knife (192).

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