A packaging pattern visual comparison checking detection device

Abstract

The application discloses a kind of packaging pattern visual comparison check detection devices, and the application relates to pattern detection technical field.The packaging pattern visual comparison check detection device, including machine body, transmission mechanism, visual detection mechanism, and shading mechanism being installed in the middle of inside surface of machine body, visual detection mechanism includes electric telescopic rod and connecting shell, connecting shell is fixedly installed in the telescopic end of electric telescopic rod, strip-shaped mouth is opened in the side of connecting shell surface, conical hopper is fixedly installed in the middle of connecting shell bottom, telescopic elastic connecting rod is fixedly connected in the top of connecting shell inner chamber, pattern visual inspector is fixedly installed in the bottom end of telescopic elastic connecting rod, bending rod is slidably installed in the side of connecting shell surface, the top of bending rod passes through the center of strip-shaped mouth, adjustable purposes are reached, can be fine-tuned accurate focusing, and outside light interference is shielded, comparison check detection is accurate, suitable for batch detection, safe and reliable.

Description

Technical Field

[0001] This invention relates to the field of pattern detection technology, and in particular to a visual comparison and verification device for packaging patterns. Background Technology

[0002] The packaging pattern visual comparison and verification inspection device is an automated quality inspection system based on machine vision, image processing and algorithms. Its core is to compare the packaging pattern to be inspected with a standard template pixel by pixel and feature by feature to identify defects such as overprinting deviation, color difference, graphic errors, dirt and defects, etc., replacing manual labor and achieving high-speed and high-precision quality inspection.

[0003] For example, a visual inspection device for corrugated cardboard box printing patterns, as disclosed in Chinese Patent Publication No. CN223977102U, includes a visual registration machine, a first machine base, and a second machine base. Servo motors are mounted on the outer surfaces of both the first and second machine bases. A conveying device is mounted at the output end of each servo motor. A connecting seat is fixedly mounted on the outer surface of the first machine base. A double-headed motor is mounted on the outer surface of the connecting seat. A lead screw is fixedly mounted at the output end of the double-headed motor. A slide is slidably connected to the lead screw via the connecting seat. An auxiliary frame is fixedly mounted on the outer surface of the slide. A drive motor is mounted on the outer surface of the auxiliary frame. An auxiliary conveying component is mounted at the output end of the drive motor. The visual registration machine is a Hawk visual registration machine, which utilizes advanced vision technology to achieve high-precision registration.

[0004] In existing technical references, visual inspection of patterns can be performed using a visual registration machine. However, this design makes it inconvenient to fine-tune the pattern visual inspection equipment, resulting in inaccurate focusing and affecting the accuracy of pattern visual inspection. Summary of the Invention

[0005] To solve the above technical problems, the present invention is implemented through the following technical solution: A packaging pattern visual comparison and verification detection device includes: The fuselage, and the light-shielding mechanism installed in the middle of the inner side of the fuselage; The transmission mechanism includes a conveyor and a rectangular tray. The conveyor is mounted on the surface of the machine body, and the rectangular tray is mounted on the surface of the conveyor. A U-shaped notch is provided on the side of the rectangular tray surface, and an anti-slip strip is fixedly installed at the bottom of the inner cavity of the rectangular tray. A visual inspection mechanism includes an electric telescopic rod and a connecting housing. The electric telescopic rod is fixedly installed on the top of the inner side of the machine body. The connecting housing is fixedly installed on the telescopic end of the electric telescopic rod. A strip-shaped opening is provided on the side surface of the connecting housing. A conical bucket is fixedly installed in the middle of the bottom of the connecting housing. A telescopic elastic connecting rod is fixedly connected to the top of the inner cavity of the connecting housing. A pattern visual inspector is fixedly installed at the bottom end of the telescopic elastic connecting rod. A bending rod is slidably installed on the side surface of the connecting housing. The top end of the bending rod passes through the center of the strip-shaped opening. By extending the output end of the electric telescopic rod, a pattern visual inspector can be inspected. Applying a downward pushing force to the connecting housing causes it to move downwards. The pattern visual inspector and the bending rod move downwards along with the connecting housing. First, the height of the pattern visual inspector is adjusted significantly to shorten the adjustment time. When the connecting housing drives the bending rod downwards, the right-angled end of the bending rod is inserted into the U-shaped notch on the side of the rectangular tray. The camera at the bottom of the pattern visual inspector captures the pattern on the top of the packaging box inside the rectangular tray and transmits the captured information to the controller inside the pattern visual inspector in the form of an electrical signal. The controller inside the pattern visual inspector receives and processes the electrical signal.

[0006] Furthermore, the electric telescopic rod is installed vertically, there are two electric telescopic rods, and the two electric telescopic rods are symmetrically installed along the connecting housing. The electric telescopic rod is electrically connected to the controller inside the pattern visual inspector, and the strip opening is vertically opened.

[0007] By inserting the bottom end of the bent rod into the U-shaped notch, the bottom end of the bent rod can be limited, allowing the bent rod to support the connecting housing and helping the pattern visual inspector inside the connecting housing to be more stable.

[0008] Furthermore, the conical bucket is installed directly below the acquisition camera at the bottom of the pattern visual inspector, and the inner diameter of the conical bucket gradually increases from top to bottom.

[0009] By retracting the telescopic end of the electric telescopic rod, an upward pulling force can be applied to the connecting housing. The connecting housing drives the bending rod to move upward, causing the bottom end of the bending rod to separate from the U-shaped notch. The U-shaped notch releases the constraint on the bending rod. As the bending rod continues to move upward, the bottom end of the bending rod separates from the packaging box on top of the rectangular pallet, making it easy to move the packaging box pattern that needs to be inspected later by using the operation of the conveyor belt.

[0010] Furthermore, there are two bending rods, and the two bending rods are symmetrically installed along the central axis of the connecting housing. The top of the bending rod and the end near the strip opening are inclined, and the inclined surface of the top of the inner side of the bending rod is in contact with the edge of the top of the pattern visual inspector.

[0011] Furthermore, the anti-slip strips are evenly distributed on the bottom of the inner cavity of the rectangular pallet. The anti-slip strips are made of rubber, which increases friction, making the packaging boxes inside the rectangular pallet more resistant to shifting. In addition, the anti-slip strips are flexible, and there is a flexible contact between the anti-slip strips and the bottom of the packaging boxes, which makes it less likely to damage the packaging boxes.

[0012] By rotating the output of the driver, the active support roller can be driven to roll, and under the support of the driven support roller, the conveyor belt can be operated, which can drive the rectangular pallet to move, thereby transporting the packaging boxes on the rectangular pallet. By transporting the packaging boxes one by one in an orderly manner, it is convenient to perform visual comparison and verification inspection of the patterns on the packaging boxes in batches.

[0013] Furthermore, the conveyor includes a support frame, which is fixedly installed on the inner side of the machine body. An active support roller is rotatably mounted at one end of the top of the support frame, and a driven support roller is rotatably mounted at the top of the support frame away from the active support roller. A driver is fixedly mounted on the side of the support frame surface, near the active support roller. The driver is electrically connected to a controller within the pattern visual inspector. A conveyor belt is installed between the active and driven support rollers. Rectangular trays are fixedly mounted on the surface of the conveyor belt and are evenly distributed on the surface of the conveyor belt. When the controller within the pattern visual inspector processes… When the captured pattern is blurry, it indicates inaccurate focusing. The controller inside the pattern visual inspector can then control the driver. By precisely controlling the rotation speed and number of rotations at the driver's output, the distance the conveyor belt moves with the rectangular pallet can be accurately controlled by the rolling of the active and driven support rollers. Furthermore, by inserting the right-angled end of the bending rod into the U-shaped notch, the surface of the packaging box embedded in the rectangular pallet contacts the end face of the bottom of the bending rod. The packaging box in the rectangular pallet then applies a forward driving force to the bending rod, causing it to move and facilitating subsequent fine-tuning of the pattern visual inspector.

[0014] Furthermore, the driven support roller and the active support roller are installed at the same height. One end of the active support roller is fixedly installed to the output end of the driver via a coupling. The bending rod is pushed forward by the packaging box, and the inclined surface at the top of the bending rod applies downward pressure to the side of the top of the pattern visual inspector. With the support of the telescopic elastic link, the pattern visual inspector moves downward for fine adjustment. Combined with the controller inside the pattern visual inspector to precisely control the driver, the pattern visual inspector can accurately focus after fine adjustment, which helps the pattern visual inspector to clearly capture the pattern and makes the acquisition, comparison, verification and detection less prone to errors.

[0015] Furthermore, the light-shielding mechanism includes an elastic telescopic damping rod. A first round rod is fixedly connected to the top side of the elastic telescopic damping rod, and a second round rod is fixedly connected to the top of the elastic telescopic damping rod and the end away from the first round rod. A first triangular cover is hinged to the middle of the outer surface of the first round rod, and a second triangular cover is hinged to the middle of the outer surface of the second round rod. A conical elastic light-shielding cloth is fixedly connected to the surface of the first and second triangular covers. The bottom ends of the first and second triangular covers are in contact with the top of the packaging box on the top of the rectangular pallet. When the first and second triangular covers are subjected to downward pressure, the ends of the first and second triangular covers rotate and unfold outward, and the conical elastic light-shielding cloth is stretched open, increasing the shading area and effectively blocking external light, reducing the influence of external light. Once the pattern detection is complete, the connecting housing moves the conical bucket upwards. The pressure exerted by the conical bucket on the first and second triangular covers disappears, and under the elastic support of the elastic telescopic damping rod, the first and second triangular covers move upwards, moving away from the packaging box. The elastic contraction of the conical elastic light-blocking cloth itself applies an inward tightening force to the first and second triangular covers, causing them to rotate in opposite directions to reset, so that they can be used for light blocking again later.

[0016] Furthermore, there are two elastic telescopic damping rods, both of which are installed vertically, while the first round rod and the second round rod are installed horizontally at the same height.

[0017] By utilizing the rotational effect of the tops of the first and second triangular covers, the camera at the bottom of the pattern visual inspector is no longer obstructed. Furthermore, with the first and second triangular covers fully open and the conical elastic light-blocking cloth fully unfolded to block light, the camera at the bottom of the pattern visual inspector can capture a complete image. Otherwise, if a defective image is captured, the controller inside the pattern visual inspector will still control the driver and electric telescopic rod to continuously attempt fine adjustments until a clear and complete pattern is captured.

[0018] Furthermore, the first triangular cover and the second triangular cover are installed at the same height, and the first triangular cover and the second triangular cover are installed directly below the conical bucket.

[0019] The beneficial effects of the technical solution provided by this invention include: (i) When the pattern collected by the controller in the pattern visual inspector is blurry, it indicates that the focus is inaccurate. The controller in the pattern visual inspector can then control the driver. By precisely controlling the rotation speed and number of rotations at the output end of the driver, the distance that the conveyor belt moves with the rectangular pallet can be accurately controlled by the rolling of the active support roller and the driven support roller. The packaging box in the rectangular pallet can then apply a forward driving force to the bending rod, causing the bending rod to be pushed and moved, which facilitates subsequent fine-tuning of the pattern visual inspector.

[0020] (ii) The bending rod is pushed forward by the packaging box, and the inclined surface at the top of the bending rod applies downward pressure to the top side of the pattern visual inspector. With the support of the telescopic elastic link, the pattern visual inspector moves downward for fine adjustment. Combined with the controller inside the pattern visual inspector to precisely control the driver, the pattern visual inspector can accurately focus after fine adjustment, which helps the pattern visual inspector to clearly capture the pattern and makes it less prone to errors in the collection, comparison and verification detection.

[0021] (iii) By inserting the bottom end of the bent rod into the U-shaped notch, the bottom end of the bent rod can be limited, so that the bent rod supports the connecting housing, which helps the pattern visual inspector inside the connecting housing to be more stable.

[0022] (iv) The bottom ends of the first triangular cover and the second triangular cover contact the top of the packaging box on the top of the rectangular pallet. The first triangular cover and the second triangular cover are pressed downward, causing the first triangular cover and the second triangular cover to rotate and unfold outward, and the conical elastic light-blocking cloth is stretched open, increasing the blocking area and effectively blocking the outside light, reducing the influence of the outside light.

[0023] (v) By utilizing action and reaction forces, the packaging box is not prone to tipping or tilting when pressed by the first and second triangular covers. At the same time, the rotation of the tops of the first and second triangular covers prevents them from obstructing the camera at the bottom of the pattern visual inspector. Furthermore, the first and second triangular covers are fully open, and the conical elastic light-blocking cloth is fully deployed to block light, allowing the camera at the bottom of the pattern visual inspector to capture a complete image. Otherwise, if a defective image is captured, the controller inside the pattern visual inspector will still control the driver and electric telescopic rod to continuously attempt fine adjustments until a clear and complete pattern is captured. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a packaging pattern visual comparison and verification detection device provided in an embodiment of the present invention; Figure 2A schematic diagram of the structure of a packaging pattern visual comparison and verification detection device provided in an embodiment of the present invention (viewed from below). Figure 3 This is a schematic diagram of the connection structure between the visual inspection mechanism and the machine body provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the overall rear structure of the visual inspection mechanism provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the internal structure of the connecting shell cross-section provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the connection structure between the transmission mechanism and the machine body provided in an embodiment of the present invention; Figure 7 Provided for embodiments of the present invention Figure 6 A magnified view of the structure at point A in the middle; Figure 8 This is a schematic diagram of the connection structure between the light-shielding mechanism and the machine body provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the internal structure of the tapered elastic light-shielding cloth cross section provided in an embodiment of the present invention.

[0025] In the diagram: 1. Machine body; 2. Transmission mechanism; 3. Light-shielding mechanism; 4. Visual inspection mechanism; 21. Conveyor; 22. Rectangular tray; 23. U-shaped notch; 24. Anti-slip strip; 211. Support frame; 212. Active support roller; 213. Driver; 214. Driven support roller; 215. Conveyor belt; 31. Elastic telescopic damping rod; 32. First round rod; 33. Second round rod; 34. First triangular cover; 35. Second triangular cover; 36. Conical elastic light-shielding cloth; 41. Electric telescopic rod; 42. Connecting housing; 43. Strip-shaped opening; 44. Conical bucket; 45. Telescopic elastic connecting rod; 46. Pattern visual inspector; 47. Bending rod. Detailed Implementation

[0026] Example 1, see Figures 1-5 A technical solution is provided: A packaging pattern visual comparison and verification detection device includes: The main body 1, and the light-shielding mechanism 3 installed in the middle of the inner side of the main body 1; The transmission mechanism 2 includes a conveyor 21 and a rectangular tray 22. The conveyor 21 is installed on the surface of the machine body 1, and the rectangular tray 22 is installed on the surface of the conveyor 21. A U-shaped notch 23 is provided on the side of the surface of the rectangular tray 22, and an anti-slip strip 24 is fixedly installed at the bottom of the inner cavity of the rectangular tray 22. The conveyor 21 includes a support frame 211, which is fixedly installed on the inner side of the machine body 1. An active support roller 212 is rotatably mounted on one end of the top of the support frame 211, and a driven support roller 214 is rotatably mounted on the top of the support frame 211 away from the active support roller 212. A driver 213 is fixedly installed on the side of the surface of the support frame 211 near the active support roller 212. The driver 213 is electrically connected to the controller in the pattern visual inspector 46. A conveyor belt 215 is installed between the active support roller 212 and the driven support roller 214. A rectangular tray 22 is fixedly installed on the surface of the conveyor belt 215 and is evenly distributed on the surface of the conveyor belt 215.

[0027] The visual inspection mechanism 4 includes an electric telescopic rod 41 and a connecting housing 42. The electric telescopic rod 41 is fixedly installed on the top of the inner side of the machine body 1. The connecting housing 42 is fixedly installed on the telescopic end of the electric telescopic rod 41. A strip-shaped opening 43 is provided on the side of the surface of the connecting housing 42. A conical bucket 44 is fixedly installed in the middle of the bottom of the connecting housing 42. A telescopic elastic connecting rod 45 is fixedly connected to the top of the inner cavity of the connecting housing 42. A pattern visual inspector 46 is fixedly installed at the bottom end of the telescopic elastic connecting rod 45. A sliding device is installed on the side of the surface of the connecting housing 42. A bending rod 47 is provided, with its top end passing through the center of the slot 43. The electric telescopic rod 41 is activated, and its extension at the output end applies a downward pushing force to the connecting housing 42, causing it to move downwards. The pattern visual inspector 46 and the bending rod 47 move downwards along with the connecting housing 42. The pattern visual inspector 46 is first adjusted to a significantly higher height to shorten the adjustment time. When the connecting housing 42 drives the bending rod 47 downwards, the right-angled end of the bending rod 47 inserts into the rectangular tray. Within the U-shaped notch 23 on the side of the rectangular tray 22, the image capture camera at the bottom of the pattern visual inspector 46 captures the pattern on the top of the packaging box inside the tray 22. The captured information is transmitted to the controller within the pattern visual inspector 46 via an electrical signal. The controller receives and processes the electrical signal. If the captured pattern is blurry, it indicates inaccurate focusing. The controller can then control the driver 213 to precisely control the driver. The rotation speed and number of rotations at the output end of device 213 can be used to accurately control the distance that the conveyor belt 215 drives the rectangular pallet 22 to move by the rolling of the active support roller 212 and the driven support roller 214. In addition, the right-angled end of the bottom of the bending rod 47 is inserted into the U-shaped notch 23, so that the surface of the packaging box embedded in the rectangular pallet 22 contacts the end face of the bottom of the bending rod 47. The packaging box in the rectangular pallet 22 can apply a forward driving force to the bending rod 47, so that the bending rod 47 is pushed to move, which facilitates the subsequent fine adjustment of the pattern visual inspector 46.

[0028] The electric telescopic rod 41 is installed vertically. There are two electric telescopic rods 41, and the two electric telescopic rods 41 are symmetrically installed along the connecting housing 42. The strip-shaped opening 43 is vertically opened. By inserting the bottom end of the bent rod 47 into the U-shaped notch 23, the bottom end of the bent rod 47 can be limited, so that the bent rod 47 supports the connecting housing 42, which helps the pattern visual inspector 46 inside the connecting housing 42 to be more stable.

[0029] The conical bucket 44 is installed directly below the acquisition camera at the bottom of the pattern visual inspector 46. The inner diameter of the conical bucket 44 gradually increases from top to bottom. The bending rod 47 is pushed forward by the packaging box, causing the bending rod 47 to move forward. The inclined surface at the top of the bending rod 47 applies downward pressure to the side of the top of the pattern visual inspector 46. With the support of the telescopic elastic link 45, the pattern visual inspector 46 moves downward for fine adjustment. Combined with the controller inside the pattern visual inspector 46, the driver 213 is precisely controlled. After being fine-tuned, the pattern visual inspector 46 accurately focuses and clearly captures the pattern.

[0030] There are two bending rods 47, and the two bending rods 47 are symmetrically installed along the central axis of the connecting housing 42. The top of the bending rod 47 and the end near the strip opening 43 are inclined. The inclined surface of the top of the inner side of the bending rod 47 fits with the edge of the top of the pattern visual inspector 46.

[0031] Example 2, based on Example 1, see [link / reference] Figures 1 to 7 A technical solution is provided: Anti-slip strips 24 are evenly distributed on the bottom of the inner cavity of the rectangular pallet 22. The anti-slip strips 24 are made of rubber, which increases friction and makes the packaging boxes inside the rectangular pallet 22 less prone to displacement. The anti-slip strips 24 are also flexible, and there is a flexible contact between the anti-slip strips 24 and the bottom of the packaging boxes, which does not easily damage the packaging boxes. After the pattern verification and inspection is completed, the staff will start the electric telescopic rod 41 again. By retracting the telescopic end of the electric telescopic rod 41, an upward pulling force can be applied to the connecting housing 42. The connecting housing 42 drives the bending rod 47 to move upward, so that the bottom end of the bending rod 47 separates from the U-shaped notch 23. The U-shaped notch 23 releases the limit on the bending rod 47. As the bending rod 47 continues to move upward, the bottom end of the bending rod 47 separates from the packaging box on the top of the rectangular pallet 22, making it easy to move the pattern of the packaging box to be inspected next by using the operation of the conveyor belt 215.

[0032] Driven support roller 214 and active support roller 212 are installed at the same height. One end of the active support roller 212 is fixedly installed to the output end of driver 213 via a coupling. When driver 213 is turned on, the active support roller 212 is driven to roll by the rotation of the output end of driver 213. With the support of driven support roller 214, the conveyor belt 215 runs, which drives the rectangular pallet 22 to move, thereby transporting the packaging boxes on the rectangular pallet 22. By transporting the packaging boxes one by one in an orderly manner, it is convenient to perform visual comparison and verification inspection of the patterns on the packaging boxes in batches.

[0033] Example 3, based on Examples 1 and 2, see [reference] Figures 1 to 9 A technical solution is provided: The light-blocking mechanism 3 includes an elastic telescopic damping rod 31. A first round rod 32 is fixedly connected to the top side of the elastic telescopic damping rod 31. A second round rod 33 is fixedly connected to the top of the elastic telescopic damping rod 31 and the end away from the first round rod 32. A first triangular cover 34 is hinged to the middle of the outer surface of the first round rod 32. A second triangular cover 35 is hinged to the middle of the outer surface of the second round rod 33. A tapered elastic light-blocking cloth is fixedly connected to the surface of the first triangular cover 34 and the surface of the second triangular cover 35. 36. By using the connecting housing 42 to drive the conical bucket 44 to move downwards, the bottom end of the conical bucket 44 contacts the top of the first triangular cover 34 and the top of the second triangular cover 35, thus applying a downward pushing force to the first triangular cover 34 and the second triangular cover 35. With the connection of the first round rod 32 and the second round rod 33, the first triangular cover 34 and the second triangular cover 35 move downwards as a whole. Furthermore, the elastically telescopic damping rod 31, after being compressed, elastically contracts, causing the bottom end of the first triangular cover 34 and the top end of the second triangular cover 35 to move downwards. The bottom of the two triangular covers 35 contacts the top of the packaging box on the top of the rectangular tray 22. Utilizing the downward pressure applied to the first triangular covers 34 and the second triangular covers 35, the ends of the first triangular covers 34 and the second triangular covers 35 rotate and unfold outwards, and the conical elastic light-blocking cloth 36 is stretched open, increasing the blocking area and effectively blocking external light, reducing the influence of external light. When pattern detection is completed, the connecting housing 42 drives the conical bucket 44 to move upwards, and the conical bucket 44 presses against the first triangular cover 35. 4. The pressing force of the second triangular cover 35 disappears, and under the elastic support of the elastic telescopic damping rod 31, the first triangular cover 34 and the second triangular cover 35 move upward, away from the packaging box. The elastic contraction of the conical elastic light-blocking cloth 36 can apply an inward tightening force to the first triangular cover 34 and the second triangular cover 35. The first triangular cover 34 and the second triangular cover 35 rotate in the opposite direction to reset, so that they can be used for light blocking again later.

[0034] There are two elastic telescopic damping rods 31, both of which are installed vertically. The first round rod 32 and the second round rod 33 are installed horizontally at the same height. The first triangular cover 34 and the second triangular cover 35 are pressed and unfolded to both sides. Utilizing action and reaction forces, the top of the packaging box is subjected to the pressing force of the first triangular cover 34 and the second triangular cover 35, making it less likely for the packaging box to tip over or tilt. At the same time, the rotation of the top of the first triangular cover 34 and the top of the second triangular cover 35 prevents them from obstructing the camera at the bottom of the pattern visual inspector 46. With the first triangular cover 34 and the second triangular cover 35 fully open and the conical elastic light-blocking cloth 36 fully unfolded to block light, the camera at the bottom of the pattern visual inspector 46 can capture a complete image. Otherwise, if a defective image is captured, the controller inside the pattern visual inspector 46 will still control the driver 213 and the electric telescopic rod 41 to continuously attempt fine adjustments until a clear and complete pattern is captured.

[0035] The first triangular cover 34 and the second triangular cover 35 are installed at the same height, and the first triangular cover 34 and the second triangular cover 35 are installed directly below the conical bucket 44.

[0036] When in use, first place the patterned packaging box inside the rectangular tray 22, and the rectangular tray 22 can then limit the position of the packaging box; At this time, the driver 213 is turned on and put into operation. The rotation of the output end of the driver 213 can drive the active support roller 212 to roll. With the support of the driven support roller 214, the conveyor belt 215 will run, which can drive the rectangular pallet 22 to move, thereby transporting the packaging boxes on the rectangular pallet 22. When the top pattern of the undetected packaging box moves directly under the conical elastic light-blocking cloth 36, the controller in the pattern visual inspector 46 can pause the operation of the driver 213. Furthermore, when the staff activates the electric telescopic rod 41, the extension of the output end of the electric telescopic rod 41 can apply a downward pushing force to the connecting housing 42, which will cause the connecting housing 42 to move downward. The pattern visual inspector 46 and the bending rod 47 will move downward together with the connecting housing 42, and the height of the pattern visual inspector 46 will be adjusted significantly first, shortening the auxiliary adjustment time. Simultaneously, the connecting housing 42 drives the conical bucket 44 to move downwards. The bottom end of the conical bucket 44 contacts the top of the first triangular cover 34 and the top of the second triangular cover 35, thus applying a downward pushing force to the first triangular cover 34 and the second triangular cover 35. With the connection of the first round rod 32 and the second round rod 33, the first triangular cover 34 and the second triangular cover 35 move downwards as a whole. The elastic telescopic damping rod 31 is compressed and then elastically contracts. The bottom end of the first triangular cover 34 and the bottom end of the second triangular cover 35 contact the top of the packaging box on the top of the rectangular tray 22. The downward pressing force on the first triangular cover 34 and the second triangular cover 35 causes the ends of the first triangular cover 34 and the second triangular cover 35 to rotate and unfold outwards, and the conical elastic light-blocking cloth 36 is stretched open to increase the blocking area. Furthermore, the first triangular cover 34 and the second triangular cover 35 are pressed and unfolded to both sides, allowing the pattern to be initially sampled and acquired by the camera at the bottom of the pattern visual inspector 46. When the connecting housing 42 drives the bending rod 47 downward, the right-angled end of the bending rod 47 is inserted into the U-shaped notch 23 on the side of the rectangular tray 22. The acquisition camera at the bottom of the pattern visual inspector 46 captures the pattern on the top of the packaging box inside the rectangular tray 22 and transmits the acquired information to the controller inside the pattern visual inspector 46 in the form of an electrical signal. The controller inside the pattern visual inspector 46 receives and processes the electrical signal. When the controller inside the pattern visual inspector 46 processes the acquired pattern... When the image is blurry, it indicates that the focus is inaccurate. The controller in the pattern visual inspector 46 can then control the driver 213. By precisely controlling the rotation speed and number of rotations at the output of the driver 213, the distance that the conveyor belt 215 moves with the rectangular pallet 22 can be accurately controlled by the rolling of the active support roller 212 and the driven support roller 214. Furthermore, by inserting the right-angled end of the bending rod 47 into the U-shaped notch 23, the surface of the packaging box embedded in the rectangular pallet 22 contacts the end face of the bottom of the bending rod 47. The packaging box in the rectangular pallet 22 can then apply a forward driving force to the bending rod 47, causing the bending rod 47 to be pushed and moved, which facilitates subsequent fine-tuning of the pattern visual inspector 46. The first triangular cover 34 and the second triangular cover 35 are pressed and unfold to both sides. Utilizing action and reaction forces, the top of the packaging box is subjected to the pressing force of the first triangular cover 34 and the second triangular cover 35, making it less likely for the packaging box to tip over or tilt. At the same time, the rotation of the top of the first triangular cover 34 and the top of the second triangular cover 35 prevents them from obstructing the camera at the bottom of the pattern visual inspector 46. With the first triangular cover 34 and the second triangular cover 35 fully open and the conical elastic light-blocking cloth 36 fully unfolded to block light, the camera at the bottom of the pattern visual inspector 46 can capture a complete image. Otherwise, if a defective image is captured, the controller inside the pattern visual inspector 46 will still control the driver 213 and the electric telescopic rod 41 to continuously attempt fine adjustments until a clear and complete pattern is captured. Then, the clear pattern can be compared and verified by the pattern visual inspector 46. Once the pattern inspection is complete, the staff will restart the electric telescopic rod 41. By retracting the telescopic end of the electric telescopic rod 41, an upward pulling force can be applied to the connecting housing 42. The connecting housing 42 will drive the bending rod 47 to move upward, causing the bottom end of the bending rod 47 to separate from the U-shaped notch 23. The U-shaped notch 23 will then release the restriction on the bending rod 47. As the bending rod 47 continues to move upward, the bottom end of the bending rod 47 will separate from the packaging box on top of the rectangular pallet 22, making it easier to move the packaging box pattern that needs to be inspected next by using the operation of the conveyor belt 215. Furthermore, the connecting housing 42 drives the conical bucket 44 to move upward, the pressure of the conical bucket 44 on the first triangular cover 34 and the second triangular cover 35 disappears, and under the elastic support of the elastic telescopic damping rod 31, the first triangular cover 34 and the second triangular cover 35 move upward, away from the packaging box, and the elastic contraction of the conical elastic light-blocking cloth 36 can apply an inward tightening force to the first triangular cover 34 and the second triangular cover 35, and the first triangular cover 34 and the second triangular cover 35 rotate in the opposite direction to reset, so that they can be light-blocked again in the future.

[0037] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A packaging pattern visual comparison and verification detection device, characterized in that, include: The body (1) and the light-shielding mechanism (3) installed in the middle of the inner side of the body (1); The transmission mechanism (2) includes a conveyor (21) and a rectangular tray (22). The conveyor (21) is installed on the surface of the machine body (1), and the rectangular tray (22) is installed on the surface of the conveyor (21). A U-shaped notch (23) is provided on the side of the surface of the rectangular tray (22), and an anti-slip strip (24) is fixedly installed at the bottom of the inner cavity of the rectangular tray (22). The visual inspection mechanism (4) includes an electric telescopic rod (41) and a connecting housing (42). The electric telescopic rod (41) is fixedly installed on the top of the inner side of the machine body (1). The connecting housing (42) is fixedly installed on the telescopic end of the electric telescopic rod (41). A strip-shaped opening (43) is provided on the side of the surface of the connecting housing (42). A conical bucket (44) is fixedly installed in the middle of the bottom of the connecting housing (42). A telescopic elastic connecting rod (45) is fixedly connected to the top of the inner cavity of the connecting housing (42). A pattern visual inspector (46) is fixedly installed at the bottom end of the telescopic elastic connecting rod (45). A bending rod (47) is slidably installed on the side of the surface of the connecting housing (42). The top end of the bending rod (47) passes through the center of the strip-shaped opening (43).

2. The packaging pattern visual comparison and verification detection device according to claim 1, characterized in that: The electric telescopic rod (41) is installed vertically. There are two electric telescopic rods (41), and the two electric telescopic rods (41) are installed symmetrically along the connecting shell (42). The strip opening (43) is opened vertically.

3. The packaging pattern visual comparison and verification detection device according to claim 1, characterized in that: The conical bucket (44) is installed directly below the acquisition camera at the bottom of the pattern visual inspector (46), and the inner diameter of the conical bucket (44) gradually increases from top to bottom.

4. The packaging pattern visual comparison and verification detection device according to claim 1, characterized in that: There are two bending rods (47), and the two bending rods (47) are symmetrically installed along the central axis of the connecting housing (42). The top of the bending rod (47) and the end near the strip opening (43) are inclined. The inclined surface of the top of the inner side of the bending rod (47) fits against the edge of the top of the pattern visual inspector (46).

5. The packaging pattern visual comparison and verification detection device according to claim 1, characterized in that: The anti-slip strips (24) are evenly distributed at the bottom of the inner cavity of the rectangular tray (22), and the anti-slip strips (24) are made of rubber.

6. The packaging pattern visual comparison and verification detection device according to claim 1, characterized in that: The conveyor (21) includes a support frame (211), which is fixedly installed on the inner side of the machine body (1). An active support roller (212) is rolled on one end of the top of the support frame (211), and a driven support roller (214) is rolled on the top of the support frame (211) away from the active support roller (212). A driver (213) is fixedly installed on the side of the surface of the support frame (211) near the active support roller (212). The driver (213) is electrically connected to the controller in the pattern visual inspector (46). A conveyor belt (215) is installed between the active support roller (212) and the driven support roller (214). A rectangular tray (22) is fixedly installed on the surface of the conveyor belt (215), and the rectangular tray (22) is evenly distributed on the surface of the conveyor belt (215).

7. The packaging pattern visual comparison and verification detection device according to claim 6, characterized in that: The driven support roller (214) and the active support roller (212) are installed at the same height, and one end of the active support roller (212) is fixedly installed to the output end of the driver (213) via a coupling.

8. The packaging pattern visual comparison and verification detection device according to claim 1, characterized in that: The light-shielding mechanism (3) includes an elastic telescopic damping rod (31). A first round rod (32) is fixedly connected to the top side of the elastic telescopic damping rod (31). A second round rod (33) is fixedly connected to the top of the elastic telescopic damping rod (31) and the end away from the first round rod (32). A first triangular cover (34) is hinged to the middle of the outer surface of the first round rod (32). A second triangular cover (35) is hinged to the middle of the outer surface of the second round rod (33). A conical elastic light-shielding cloth (36) is fixedly connected to the surface of the first triangular cover (34) and the surface of the second triangular cover (35).

9. The packaging pattern visual comparison and verification detection device according to claim 8, characterized in that: There are two elastic telescopic damping rods (31), and both elastic telescopic damping rods (31) are installed vertically. The first round rod (32) and the second round rod (33) are installed horizontally, and the first round rod (32) and the second round rod (33) are installed at the same height.

10. The packaging pattern visual comparison and verification detection device according to claim 8, characterized in that: The first triangular cover (34) and the second triangular cover (35) are installed at the same height, and the first triangular cover (34) and the second triangular cover (35) are installed directly below the conical bucket (44).

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