A container size and form error detection device

Abstract

The application discloses a container size and geometric position error detection device, and relates to the technical field of container size detection.The device comprises a base, a placing table is arranged on the top of the base, a transposition adjusting piece is arranged on the positioning frame, and correction limiting pieces are arranged on the two sides of the placing table.The transposition adjusting piece is arranged, the first electromagnet is closed and the second electromagnet is opened after the height detection of the container is completed, the first electromagnet loses the adsorption force on the arc-shaped iron block at this time, then the positioning frame is rotated, the second electromagnet is attached to the arc-shaped iron block after the positioning frame is rotated by 90 degrees, the laser measuring instrument body is transferred from above the container to the side of the container, then the outer wall of the container is detected through the up-down movement of the laser measuring instrument body and the rotation of the container, the detection range of the laser measuring instrument body on the container is improved, the container does not need to be repeatedly disassembled and fixed, the operation is simple, and the detection efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of container size detection technology, specifically a container size and shape error detection device. Background Technology

[0002] Dimensional and geometrical errors refer to the deviations between the actual geometric shape and relative positions of various parts of a container after it is formed and the theoretical standard dimensions. These errors mainly include roundness, straightness, flatness, perpendicularity, and coaxiality, which directly affect the container's assembly accuracy, sealing performance, and operational stability. They require high-precision identification and judgment through visual inspection devices.

[0003] In the inspection of cylindrical containers, the laser measuring instrument is limited by its own range of motion, and can only perform axial or radial measurements in a single direction when inspecting cylindrical tanks. In order to complete the full-dimensional and geometrical inspection, the placement posture of the cylindrical tank needs to be disassembled, adjusted and refixed multiple times. The operation process is cumbersome, which not only significantly reduces the overall inspection efficiency, but also greatly increases the labor intensity of the operators. Summary of the Invention

[0004] The purpose of this invention is to provide a container size and shape error detection device in order to solve the problem of low detection efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a container size and shape error detection device, comprising a base, a placement platform mounted on the top of the base, a turntable mounted on the top of the placement platform, a first motor mounted on the bottom of the placement platform above the base, the output end of the first motor connected to the bottom of the turntable, positioning rings fixedly connected to both sides of the placement platform, a positioning frame rotatably connected to the outer side of the positioning rings via bearings, a connecting block mounted on the top of the positioning frame above the turntable, a second motor mounted on one end of the connecting block, a reciprocating lead screw connected to the output end of the second motor inside the connecting block, a limiting rod arranged parallel to the reciprocating lead screw on the inner side of the connecting block, a mounting seat movably sleeved on the outer side of the reciprocating lead screw, a laser measuring instrument body movably sleeved on the bottom of the mounting seat below the connecting block, a shift adjustment component mounted on the positioning frame, and correction limiting components mounted on both sides of the placement platform; The shifting adjustment component includes sliders installed on both sides of the connecting block. A C-shaped guide block located outside the connecting block is provided on one side of the positioning frame. The connecting block is slidably connected to the positioning frame through the C-shaped guide block and the slider. A drive shaft is rotatably connected to both sides of the positioning frame through bearings. A large bevel gear ring is installed at one end of the positioning ring. A first small bevel gear meshing with the large bevel gear ring is provided at the bottom end of the drive shaft. A second small bevel gear is installed at the top end of the drive shaft. A threaded screw located above the drive shaft is rotatably connected to both sides of the positioning frame through bearings. A third small bevel gear meshing with the second small bevel gear is provided at one end of the threaded screw. A threaded block is movably sleeved on the outside of the threaded screw. A second oblique connecting rod connected to the threaded block is rotatably connected to one end of the connecting block through a rotating shaft. A fixed angle positioning unit connected to the positioning frame is provided at the top of the base.

[0006] As a further embodiment of the present invention: the fixed angle positioning unit includes a first electromagnet and a second electromagnet installed at the bottom of the positioning frame. The first electromagnet and the second electromagnet are symmetrically arranged along the vertical central axis of the positioning frame. A support frame located on one side of the placement platform is installed on the top of the base. An arc-shaped iron block that fits against the first electromagnet is installed at the top of the support frame.

[0007] As a further embodiment of the present invention: the inner curvature of the arc-shaped iron block is equal to the curvature of the bottom of the positioning frame, and the center of the positioning ring is coaxial with the center of the large bevel gear ring.

[0008] As a further embodiment of the present invention: the two ends of the second oblique connecting rod are rotatably connected to the connecting block and the threaded block respectively through a rotating shaft.

[0009] As a further embodiment of the present invention: the diameter of the first small bevel gear is smaller than the diameter of the second small bevel gear, and the diameter of the second small bevel gear is larger than the diameter of the third small bevel gear.

[0010] As a further aspect of the present invention, the length of the connecting block is greater than the diameter of the turntable.

[0011] As a further embodiment of the present invention: the correction limiting component includes a limiting block installed on the top of the placement platform, a movable frame extending to the other side of the limiting block is inserted into one side of the limiting block, one end of the movable frame near the turntable is installed on a U-shaped clamp located above the placement platform, the bottom end of the movable frame is rotatably connected to a first inclined connecting rod located below the placement platform via a rotating shaft, one end of the first inclined connecting rod is rotatably connected to a push plate located below the first motor via a rotating shaft, side connecting frames are fixedly connected to both sides of the push plate, telescopic cylinders located on both sides of the first motor are installed at the bottom of the placement platform, the movable end of the telescopic cylinder passes through the side connecting frame, and a telescopic spring connected to the movable end of the telescopic cylinder is provided on one side of the side connecting frame.

[0012] As a further aspect of the present invention: the number of the limiting blocks is set to two, and the two limiting blocks are symmetrically arranged along the vertical central axis of the turntable.

[0013] As a further embodiment of the present invention: the two ends of the U-shaped clamp are rotatably connected to rollers via a rotating shaft.

[0014] As a further embodiment of the present invention: the two ends of the movable frame pass through the inner sides of the large bevel gear ring and the positioning ring.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting a position adjustment component, after the height of the container is detected, the first electromagnet is turned off while the second electromagnet is turned on. At this time, the first electromagnet will lose its attraction to the arc-shaped iron block. Then, the positioning frame is rotated. When the positioning frame rotates 90 degrees, the second electromagnet is in contact with the arc-shaped iron block, thereby rotating the main body of the laser measuring instrument from above the container to one side of the container. During this process, the first small bevel gear revolves around the center of the large bevel gear ring while rotating on its own axis, causing the connecting block to move relative to the positioning frame. In this way, the main body of the laser measuring instrument is always positioned above the placement platform during the movement relative to the connecting block. Then, the up and down movement of the main body of the laser measuring instrument, in conjunction with the rotation of the container, is used to detect the outer wall of the container, thereby improving the detection range of the main body of the laser measuring instrument on the container. There is no need to repeatedly disassemble and fix the container, the operation is simple, and the detection efficiency is improved. 2. By setting a correction limit component, after the container is placed on top of the turntable, the telescopic cylinder is activated. The extension of the telescopic cylinder causes the side connecting frame to move the push plate downward. During this process, the push plate pulls the first inclined connecting rod, causing the movable frame to move towards the turntable, thereby moving the U-shaped clamp towards the turntable. This allows the U-shaped clamp to clamp and limit the container. After the U-shaped clamp clamps and limits the container, the telescopic cylinder continues to extend. At this time, the movable end of the telescopic cylinder will move downward relative to the side connecting frame, thereby extending the telescopic spring. During the rotation of the tank, the rollers on both sides always form a flexible constraint on the outer wall of the tank. This can limit the radial swing and lateral tilt of the container without affecting its rotation, significantly improving the stability of the container. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram showing the connection between the placement platform and the positioning ring of the present invention; Figure 4This is a schematic diagram of the bottom structure of the placement platform of the present invention; Figure 5 This is a schematic diagram showing the connection between the positioning frame and the connecting block of the present invention; Figure 6 This is a schematic diagram showing the connection between the connecting block and the threaded screw of the present invention; Figure 7 This is a schematic diagram of the internal structure of the connecting block of the present invention; Figure 8 This is a schematic diagram showing the connection between the positioning frame and the arc-shaped iron block of the present invention.

[0017] In the diagram: 1. Base; 2. Placement platform; 3. Turntable; 4. First motor; 5. Limiting block; 6. Movable frame; 7. Push plate; 8. Support frame; 9. Drive shaft; 10. Positioning frame; 11. First small bevel gear; 12. Large bevel gear ring; 13. Positioning ring; 14. U-shaped clamp; 15. First oblique connecting rod; 16. Side connecting frame; 17. Telescopic spring; 18. Telescopic cylinder; 19. Connecting block; 20. Second motor; 21. Laser measuring instrument body; 22. Second small bevel gear; 23. First electromagnet; 24. Threaded block; 25. Threaded screw; 26. Third small bevel gear; 27. Second oblique connecting rod; 28. C-shaped guide block; 29. ​​Slider; 30. Mounting base; 31. Reciprocating screw; 32. Limiting rod; 33. Second electromagnet; 34. Arc-shaped iron block. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention 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, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0020] Please see Figures 1 to 8 In this embodiment of the invention, a container size and shape error detection device includes a base 1, a placement platform 2 is installed on the top of the base 1, a turntable 3 is provided on the top of the placement platform 2, a first motor 4 is provided on the bottom of the placement platform 2 above the base 1, the output end of the first motor 4 is connected to the bottom of the turntable 3, positioning rings 13 are fixedly connected to both sides of the placement platform 2, a positioning frame 10 is rotatably connected to the outer side of the positioning rings 13 through bearings, a connecting block 19 is provided on the top of the positioning frame 10 above the turntable 3, a second motor 20 is installed on one end of the connecting block 19, a reciprocating screw 31 is connected to the output end of the second motor 20 inside the connecting block 19, a limiting rod 32 is provided on the inner side of the connecting block 19 parallel to the reciprocating screw 31, a mounting seat 30 is movably sleeved on the outer side of the reciprocating screw 31, a laser measuring instrument body 21 is provided at the bottom of the mounting seat 30 below the connecting block 19, a shift adjustment component is provided on the positioning frame 10, and correction limiting components are installed on both sides of the placement platform 2; The shift adjustment component includes sliders 29 installed on both sides of the connecting block 19. A C-shaped guide block 28 located outside the connecting block 19 is provided on one side of the positioning frame 10. The connecting block 19 is slidably connected to the positioning frame 10 through the C-shaped guide block 28 and sliders 29. The two sides of the positioning frame 10 are rotatably connected to the drive shaft 9 through bearings. A large bevel gear ring 12 is installed at one end of the positioning ring 13. A first small bevel gear 11 that meshes with the large bevel gear ring 12 is provided at the bottom end of the drive shaft 9. A second small bevel gear 22 is installed at the top end of the drive shaft 9. A threaded screw 25 located above the drive shaft 9 is rotatably connected to both sides of the positioning frame 10 through bearings. A third small bevel gear 26 that meshes with the second small bevel gear 22 is provided at one end of the threaded screw 25. A threaded block 24 is movably sleeved on the outside of the threaded screw 25. A second inclined connecting rod 27 connected to the threaded block 24 is rotatably connected to one end of the connecting block 19 through a rotating shaft. A fixed angle positioning unit connected to the positioning frame 10 is provided at the top of the base 1. The fixed-angle positioning unit includes a first electromagnet 23 and a second electromagnet 33 installed at the bottom of the positioning frame 10. The first electromagnet 23 and the second electromagnet 33 are symmetrically arranged along the vertical central axis of the positioning frame 10. A support frame 8 located on one side of the placement platform 2 is installed on the top of the base 1. An arc-shaped iron block 34 that fits against the first electromagnet 23 is installed at the top of the support frame 8.

[0021] Among them, the inner arc of the arc-shaped iron block 34 is equal to the arc of the bottom of the positioning frame 10, the center of the positioning ring 13 is coaxial with the center of the large bevel gear ring 12, the two ends of the second inclined connecting rod 27 are rotatably connected to the connecting block 19 and the threaded block 24 respectively through the rotating shaft, the diameter of the first small bevel gear 11 is smaller than the diameter of the second small bevel gear 22, the diameter of the second small bevel gear 22 is larger than the diameter of the third small bevel gear 26, and the length of the connecting block 19 is larger than the diameter of the turntable 3.

[0022] In this embodiment, when inspecting a cylindrical container, the container is first placed on top of the turntable 3. Then, the operation of the calibration limiter is used to make the center of the cylindrical container coaxial with the center of the turntable 3. After that, the second motor 20 is started, which drives the rotation of the reciprocating screw 31 to make the mounting base 30 reciprocate along the reciprocating screw 31. This causes the laser measuring instrument body 21 to reciprocate with the mounting base 30. Since the vertical distance between the laser measuring instrument body 21 and the placement platform 2 is fixed, the laser emitted by the laser measuring instrument body 21 during its movement... When the laser beam hits the top of the container, the value measured by the laser measuring instrument body 21 changes, and this change represents the height of the container. Simultaneously, the first motor 4 drives the turntable 3 to rotate, causing the container on top of the turntable 3 to rotate. This allows the laser measuring instrument body 21 to detect the top edge of the container. The change in the measured value by the measuring instrument body 21 determines whether the top of the container is level. After the height detection is complete, the first electromagnet 23 is turned off while the second electromagnet 33 is turned on. At this point, the first electromagnet 23 loses its attraction to the curved iron block 34. The positioning frame 10 is then rotated relative to the positioning ring 13. After the positioning frame 10 rotates 90 degrees, the second electromagnet 33 comes into contact with the arc-shaped iron block 34, thereby fixing and limiting the rotation of the positioning frame 10. This allows the laser measuring instrument body 21 to rotate from above the container to one side of the container. During this process, the first small bevel gear 11 revolves around the center of the large bevel gear ring 12 while also rotating on its own axis. This causes the drive shaft 9 to drive the threaded screw 25 to rotate through the second small bevel gear 22 and the third small bevel gear 26, causing the threaded block 24 to rotate. The threaded rod 25 is moved away from the positioning frame 10, thereby pulling the threaded block 24 on the second inclined connecting rod 27, causing the connecting block 19 to move relative to the positioning frame 10. This ensures that the laser measuring instrument body 21 remains above the placement platform 2 during its movement relative to the connecting block 19. Then, the up-and-down movement of the laser measuring instrument body 21, in conjunction with the rotation of the container, is used to inspect the outer wall of the container, thereby increasing the inspection range of the laser measuring instrument body 21 on the container. This eliminates the need for repeated disassembly and assembly of the container, simplifying operation and improving inspection efficiency.

[0023] Please refer to this carefully. Figure 1 , Figure 3 , Figure 4The correction limiting component includes a limiting block 5 installed on the top of the placement platform 2. A movable frame 6 extending to the other side of the limiting block 5 is inserted into one side of the limiting block 5. One end of the movable frame 6 near the turntable 3 is installed on a U-shaped clamp 14 located above the placement platform 2. The bottom end of the movable frame 6 is rotatably connected to a first inclined connecting rod 15 located below the placement platform 2 via a rotating shaft. One end of the first inclined connecting rod 15 is rotatably connected to a push plate 7 located below the first motor 4 via a rotating shaft. Side connecting frames 16 are fixedly connected to both sides of the push plate 7. Telescopic cylinders 18 located on both sides of the first motor 4 are installed at the bottom of the placement platform 2. The movable end of the telescopic cylinder 18 passes through the side connecting frame 16. A telescopic spring 17 connected to the movable end of the telescopic cylinder 18 is provided on one side of the side connecting frame 16.

[0024] There are two limit blocks 5, and the two limit blocks 5 are symmetrically arranged along the vertical central axis of the turntable 3. The two ends of the U-shaped clamp 14 are connected to rollers through the rotating shaft. The two ends of the movable frame 6 pass through the inner side of the large bevel gear ring 12 and the positioning ring 13.

[0025] In this embodiment, after the container is placed on top of the turntable 3, the telescopic cylinder 18 is activated. The extension of the telescopic cylinder 18 causes the side connecting frame 16 to move the push plate 7 downward. During this process, the push plate 7 pulls the first inclined connecting rod 15, causing the movable frame 6 to move towards the turntable 3, thereby moving the U-shaped clamp 14 towards the turntable 3. This allows the U-shaped clamp 14 to clamp and limit the container. After the U-shaped clamp 14 clamps and limits the container, the telescopic cylinder 18 continues to extend. At this time, the movable end of the telescopic cylinder 18 moves downward relative to the side connecting frame 16, thereby extending the telescopic spring 17. During the rotation of the container, the rollers on both sides always form a flexible constraint on the outer wall of the container. This can limit the radial swing and lateral tilt of the container without affecting its rotation, significantly improving the stability of the container.

[0026] The working principle of this invention is as follows: After the container is placed on top of the turntable 3, the telescopic cylinder 18 is activated. The extension of the telescopic cylinder 18 causes the side connecting frame 16 to move the push plate 7 downward. During this process, the push plate 7 pulls the first inclined connecting rod 15, causing the movable frame 6 to move towards the turntable 3, thereby moving the U-shaped clamp 14 towards the turntable 3. This allows the U-shaped clamp 14 to clamp and limit the container. After the U-shaped clamp 14 clamps and limits the container, the telescopic cylinder 18 continues to extend. At this time, the movable end of the telescopic cylinder 18 moves downward relative to the side connecting frame 16, thereby extending the telescopic spring 17. During the rotation of the container, the rollers on both sides always form a flexible constraint on the outer wall of the container, thus ensuring that the container is rotated without affecting the rotation of the container. When the device rotates, its radial sway and lateral tilt are limited, significantly improving the stability of the container. Then, the second motor 20 is started, which drives the reciprocating screw 31 to rotate, causing the mounting base 30 to move back and forth along the reciprocating screw 31. This causes the laser measuring instrument body 21 to move back and forth with the mounting base 30. Since the vertical distance between the laser measuring instrument body 21 and the placement platform 2 is fixed, when the laser emitted by the laser measuring instrument body 21 shines on the top of the container during the movement, the value measured by the laser measuring instrument body 21 will change. This change value is the height of the container. At the same time, the first motor 4 drives the turntable 3 to rotate, causing the container on the top of the turntable 3 to rotate, thereby causing the laser measuring instrument body 21 to move back and forth. 1. The top edge of the container is inspected. The flatness of the container top is determined by whether the value measured by the measuring instrument body 21 changes. After the container height is measured, the first electromagnet 23 is turned off while the second electromagnet 33 is turned on. At this point, the first electromagnet 23 loses its attraction to the arc-shaped iron block 34. Then, the positioning frame 10 is rotated relative to the positioning ring 13. When the positioning frame 10 rotates 90 degrees, the second electromagnet 33 comes into contact with the arc-shaped iron block 34, thus fixing and limiting the rotation of the positioning frame 10. This allows the laser measuring instrument body 21 to rotate from above the container to one side. During this process, the first small bevel gear 11 revolves around the center of the large bevel gear ring 12 while simultaneously advancing... The drive shaft 9 rotates, causing the threaded screw 25 to rotate via the second small bevel gear 22 and the third small bevel gear 26. This causes the threaded block 24 to move along the threaded screw 25 away from the positioning frame 10, thereby pulling the second inclined connecting rod 27 and causing the connecting block 19 to move relative to the positioning frame 10. This ensures that the laser measuring instrument body 21 remains above the placement platform 2 during its movement relative to the connecting block 19. The up-and-down movement of the laser measuring instrument body 21, combined with the rotation of the container, is used to inspect the outer wall of the container, thereby increasing the inspection range of the laser measuring instrument body 21. This eliminates the need for repeated disassembly and reassembly of the container, simplifying operation and improving inspection efficiency.

[0027] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A container size and form error detection device, comprising a base (1), characterized in that, A placement platform (2) is mounted on the top of the base (1), and a turntable (3) is mounted on the top of the placement platform (2). A first motor (4) is mounted on the bottom of the placement platform (2) above the base (1). The output end of the first motor (4) is connected to the bottom of the turntable (3). Positioning rings (13) are fixedly connected to both sides of the placement platform (2). A positioning frame (10) is rotatably connected to the outer side of the positioning rings (13) through bearings. A connecting block (19) is mounted on the top of the positioning frame (10) above the turntable (3). A second motor (20) is installed at one end, and the output end of the second motor (20) is connected to a reciprocating lead screw (31) located inside the connecting block (19). A limiting rod (32) is provided on the inner side of the connecting block (19) and arranged side by side with the reciprocating lead screw (31). A mounting seat (30) is movably sleeved on the outer side of the reciprocating lead screw (31). A laser measuring instrument body (21) located below the connecting block (19) is provided at the bottom of the mounting seat (30). A displacement adjustment component is provided on the positioning frame (10), and a correction limiting component is installed on both sides of the placement platform (2). The shift adjustment component includes sliders (29) installed on both sides of the connecting block (19). A C-shaped guide block (28) located outside the connecting block (19) is provided on one side of the positioning frame (10). The connecting block (19) is slidably connected to the positioning frame (10) through the C-shaped guide block (28) and the sliders (29). The two sides of the positioning frame (10) are rotatably connected to the drive shaft (9) through bearings. A large bevel gear ring (12) is installed at one end of the positioning ring (13). A first small bevel gear (11) meshing with the large bevel gear ring (12) is provided at the bottom end of the drive shaft (9). The top of (9) is equipped with a second small bevel gear (22). The two sides of the positioning frame (10) are rotatably connected by bearings to a threaded rod (25) located above the transmission shaft (9). One end of the threaded rod (25) is provided with a third small bevel gear (26) that meshes with the second small bevel gear (22). A threaded block (24) is movably sleeved on the outside of the threaded rod (25). One end of the connecting block (19) is rotatably connected to a second inclined connecting rod (27) connected to the threaded block (24) through a rotating shaft. The top of the base (1) is provided with a fixed angle positioning unit connected to the positioning frame (10).

2. The container size and shape error detection device according to claim 1, characterized in that, The fixed angle positioning unit includes a first electromagnet (23) and a second electromagnet (33) installed at the bottom of the positioning frame (10). The first electromagnet (23) and the second electromagnet (33) are symmetrically arranged along the vertical central axis of the positioning frame (10). A support frame (8) located on one side of the placement platform (2) is installed on the top of the base (1). An arc-shaped iron block (34) that fits against the first electromagnet (23) is installed on the top of the support frame (8).

3. The container size and shape error detection device according to claim 2, characterized in that, The inner arc of the arc-shaped iron block (34) is equal to the arc of the bottom of the positioning frame (10), and the center of the positioning ring (13) is coaxial with the center of the large bevel gear ring (12).

4. The container size and shape error detection device according to claim 2, characterized in that, The two ends of the second diagonal connecting rod (27) are rotatably connected to the connecting block (19) and the threaded block (24) respectively through the rotating shaft.

5. The container size and shape error detection device according to claim 2, characterized in that, The diameter of the first small bevel gear (11) is smaller than the diameter of the second small bevel gear (22), and the diameter of the second small bevel gear (22) is larger than the diameter of the third small bevel gear (26).

6. The container size and shape error detection device according to claim 2, characterized in that, The length of the connecting block (19) is greater than the diameter of the turntable (3).

7. The container size and shape error detection device according to claim 2, characterized in that, The correction limiting component includes a limiting block (5) installed on the top of the placement platform (2). A movable frame (6) extending to the other side of the limiting block (5) is inserted into one side of the limiting block (5). The end of the movable frame (6) near the turntable (3) is installed on a U-shaped clamp (14) located above the placement platform (2). The bottom end of the movable frame (6) is rotatably connected to a first inclined connecting rod (15) located below the placement platform (2) via a rotating shaft. One end of the first inclined connecting rod (15) is rotatably connected to a push plate (7) located below the first motor (4) via a rotating shaft. Side connecting frames (16) are fixedly connected to both sides of the push plate (7). Telescopic cylinders (18) located on both sides of the first motor (4) are installed at the bottom of the placement platform (2). The movable end of the telescopic cylinder (18) passes through the side connecting frame (16). A telescopic spring (17) connected to the movable end of the telescopic cylinder (18) is provided on one side of the side connecting frame (16).

8. The container size and shape error detection device according to claim 7, characterized in that, The number of the limiting blocks (5) is set to two, and the two limiting blocks (5) are symmetrically arranged along the vertical central axis of the turntable (3).

9. The container size and shape error detection device according to claim 7, characterized in that, The two ends of the U-shaped clamp (14) are rotatably connected to rollers via a rotating shaft.

10. The container size and shape error detection device according to claim 7, characterized in that, The two ends of the movable frame (6) pass through the inner sides of the large bevel gear ring (12) and the positioning ring (13).

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