Multi-camera automatic detection mechanism for paper container

Abstract

The utility model relates to paper container multi -camera automatic detection mechanism, wherein cup mould body is connected on the index rotating disc, and cup mould stays detection station place distribution configuration detection camera assembly, and first detection camera assembly includes the first lens of cup bottom detection, and second detection camera assembly includes the second lens, and third detection camera assembly includes the third lens, and fourth detection camera assembly includes the fourth lens, and fifth detection camera assembly includes the fifth lens, and the second lens, third lens, fourth lens and fifth lens circumferential ring are arranged around the periphery of the first lens in the middle, and the second lens, third lens, fourth lens and fifth lens respectively from cup bottom to cup mouth direction by outside to inside obliquely face cup mould stays detection station place cup mould stays position. Realize to cup bottom, cup body lateral wall, cup mouth (edge under along place), container bottom roll -pressed surface container outer surface periphery cooperation photographic detection.

Description

Technical Field

[0001] This utility model relates to a multi-camera automatic detection mechanism for paper containers. Background Technology

[0002] Paper containers (such as paper cups or paper bowls, collectively referred to as paper cups) are formed by connecting a cup body of a certain height and a cup bottom. The rim of the paper cup (its body) has a rolled edge to form a rolled rim structure, and the bottom of the paper cup is connected to the cup body by a rolled bottom and then rolled. Some paper cups also have an outer sleeve. Usually, multiple paper cups are nested together to form a strip of paper cups. If there is a defective product in the entire strip of paper cups, the entire strip of paper cups will be defective. Therefore, it is important to detect defective paper cups through inspection. Camera photography combined with inspection is a good inspection method. The camera can be set to be directly facing the rim and the bottom of the cup for inspection. However, this method is difficult to detect the lower edge of the rim (such as the lower edge of the rolled edge), such as whether there are defects such as cracks, double marks, cracks, or stains. Due to the taper and slope of the cup body, this method is also difficult to detect the condition of the cup body (such as whether there are stains), and it is also difficult to detect the condition of the rolled surface of the bottom of the paper cup. Utility Model Content

[0003] In view of the technical problems existing in the background art, the present invention aims to provide a multi-camera automatic inspection mechanism for paper containers that improves the detection effect and ensures the detection of products with surface defects.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a multi-camera automatic detection mechanism for paper containers, including an intermittent rotating cup transfer device, the intermittent rotating cup transfer device including an indexing rotating disk and a cup mold body, the cup mold body being connected to the indexing rotating disk, characterized in that: the intermittent rotating cup transfer device is equipped with a cup mold dwell detection station, at which a first detection camera assembly, a second detection camera assembly, a third detection camera assembly, a fourth detection camera assembly, and a fifth detection camera assembly are distributed and arranged, the first detection camera assembly including a first lens facing the bottom of the cup, the second detection camera assembly including a second lens, the third detection camera assembly including a third lens, the fourth detection camera assembly including a fourth lens, and the fifth detection camera assembly including a fifth lens, the second, third, fourth, and fifth lenses being circumferentially arranged around the first lens in the middle, the second, third, fourth, and fifth lenses being obliquely facing the cup mold dwell position at the cup mold dwell detection station from the bottom of the cup towards the mouth of the cup from the outside in.

[0005] The following optimizations or supplementary explanations can be made to the above technical solutions.

[0006] The indexing rotary table has its rotation axis set horizontally from left to right. The first lens is located in front of the indexing rotary table, and the second, third, fourth, and fifth lenses are distributed on the upper, lower, left, and right sides of the first lens.

[0007] For example, the indexing rotary table adopts a four-indexing rotary table. Four cup mold bodies are evenly distributed on the indexing rotary table along the rotation direction. Four cup mold stopping positions are correspondingly configured on the periphery of the indexing rotary table. The four cup mold stopping positions are distributed on the front, back, top, and bottom sides of the indexing rotary table. The bottom side of the indexing rotary table is the cup insertion and mold loading station, the front side of the indexing rotary table is the cup mold stopping and detection station, and the top side and / or rear side of the indexing rotary table is the cup ejection and demolding station.

[0008] In addition, there are air holes on the cup mold body for connecting the air source to the air intake and exhaust container.

[0009] In addition, the second, third, fourth and fifth lenses are used for the rim of the corresponding container, the outer wall of the container body and the rolled surface at the bottom of the container.

[0010] The beneficial effects of this utility model are that the multi-camera automatic inspection mechanism for paper containers can take pictures of the entire outer surface of the container, including the bottom of the cup, the side wall of the cup, the mouth of the cup (the lower edge of the rolled edge), and the bottom rolling surface of the container. Its structure is relatively compact, avoiding blind spots that could lead to missed detections, and also avoiding the increase in cost caused by arranging too many cameras. This improves the detection effect and ensures that these defective containers are detected. It can operate by relying on an intermittent rotating cup-moving device. Attached Figure Description

[0011] The following description, in conjunction with the accompanying drawings, details the embodiments and working principles of this utility model.

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 for Figure 1 A structural diagram from another angle.

[0014] In the picture: 1. First inspection camera assembly; 11. Bracket; 2. Second detection camera assembly; 21. Upper movable seat; 22. First transverse rotating shaft; 3. Third detection camera assembly; 31. Lower moving base; 32. Second transverse rotating shaft; 4. Fourth detection camera assembly; 41. Left side movable seat; 42. First vertical rotating shaft; 5. Fifth inspection camera assembly; 50. Fifth lens; 51. Right side moving base; 52. Second vertical pivot; 6. Intermittent rotating cup transfer device; 61. Indexing rotary disk; 62. Cup mold body; 63. Horizontal rotating shaft; 64. Motor; 71. Cup filling and mold assembly station; 72. Cup mold dwell and inspection station; 8. Frame; 81. Cup mold stopping position; 9. Container; 91. Cup rim; 92. Outer wall of the cup body; 93. Rolled surface at the bottom of the container. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the implementation of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0016] Referring to the accompanying drawings, the multi-camera automatic detection mechanism for paper containers in this embodiment includes an intermittent rotating cup transfer device 6 (a mature technology, such as the CN218537183U paper cup rotation and turning mechanism). The intermittent rotating cup transfer device 6 includes an indexing rotary disk 61 and a cup mold body 62. The cup mold body 62 is connected to the indexing rotary disk 61. This intermittent rotating cup transfer device 6 technology is relatively mature and can intermittently rotate and transfer the input container 9 on the cup mold body 62 along with the indexing rotary disk 61 to the corresponding position. The cup mold body 62 is used to cover the container (paper cup) with the bottom facing out.

[0017] To improve the detection effect and ensure the detection of products with surface defects, the intermittent rotating cup transfer device 6 of this utility model is equipped with a cup mold stopping detection station 72. The cup mold stopping detection station 72 is equipped with a first detection camera assembly 1, a second detection camera assembly 2, a third detection camera assembly 3, a fourth detection camera assembly 4, and a fifth detection camera assembly 5. The first detection camera assembly 1 includes a first lens, the second detection camera assembly 2 includes a second lens, the third detection camera assembly 3 includes a third lens, the fourth detection camera assembly 4 includes a fourth lens, and the fifth detection camera assembly 5 includes a fifth lens 50. The first lens is directly facing the bottom of the cup for detection, and the second, third, fourth, and fifth lenses 50 are arranged circumferentially around the first lens in the middle. The second, third, fourth, and fifth lenses 50 are respectively angled from the bottom of the cup towards the cup opening, from the outside to the inside, towards the cup mold stopping position 81 of the cup mold stopping detection station 72.

[0018] Its working principle is as follows: the first lens can directly inspect the bottom of the cup to detect its quality, while the second, third, fourth and fifth lenses 50 can work together to inspect the container 9 from the outer ring towards the middle and inspect the area of ​​the bottom of the container and the mouth of the cup. This allows for the inspection of the cup side wall 92, the mouth 91 (lower edge) and the bottom rolling surface 93 of the container, to detect their quality, achieve surface inspection of these areas, improve the inspection effect, and ensure the detection of surface defects.

[0019] This multi-camera automatic inspection mechanism for paper containers can take photos of the entire outer surface of the container, including the bottom, side walls, mouth (under the rolled edge), and bottom rolling surface. Its structure is relatively compact, avoiding blind spots that could lead to missed inspections and avoiding excessive camera placement which would increase costs. It improves the inspection effect and ensures that these defective containers are detected. It can operate using the intermittent rotating cup transfer device 6.

[0020] Based on the above embodiments, the following optimizations or further explanations can be made.

[0021] For example, the rotation axis of the indexing rotary disk 61 is horizontally arranged, such as on a horizontal rotation axis 63. The horizontal rotation axis 63 is driven to rotate by a motor 64 (such as a servo motor 64), thereby causing the indexing rotary disk 61 to rotate intermittently. The first lens can be located in front of the indexing rotary disk 61, and the second, third, fourth, and fifth lenses 50 are distributed correspondingly above, below, left, and right sides of the first lens. In the diagram, the second lens is relatively above, the third lens is relatively below, the fourth lens is relatively to the left, the fifth lens 50 is relatively to the right, and the first lens is relatively centered.

[0022] For example, the indexing rotary table 61 is a four-indexing rotary table (i.e., 90-degree intermittent rotation). Four cup mold bodies 62 are evenly distributed along the rotation direction on the indexing rotary table 61. Four cup mold stopping positions 81 are correspondingly arranged on the periphery of the indexing rotary table 61. The four cup mold stopping positions 81 and the four cup mold bodies 62 stop sequentially in a cycle as the indexing rotary table 61 rotates intermittently. The four cup mold stopping positions 81 are distributed on the front, back, top, and bottom sides of the indexing rotary table 61. In addition, the corresponding station configuration is as follows: the bottom side of the indexing rotary table 61 is the cup filling and molding station 71, the front side of the indexing rotary table 61 is the cup mold stopping and detection station 72, and the top side and / or the rear side of the indexing rotary table 61 is the cup unmolding station (one of which can be used to unmold finished products, and one of which can be used to unmold scrap or defective products).

[0023] At the cup-filling station 71, the container is fed upwards onto the cup mold body 62 of the indexing rotary table 61. For example, the outlet of the vertical cup outlet pipe of the molding machine can be directly connected to the cup-filling station 71, and the cup body coming out of the outlet can be directly fitted onto the cup mold body 62.

[0024] At the cup mold dwell detection station 72, container inspection is performed. First, second, third, fourth, and fifth lenses 50 work together to inspect the container (e.g., a paper cup) dwelling at this station. Multiple inspection camera assemblies work together to automatically capture images and perform inspections. A sensor 99 (e.g., a photoelectric sensor) can be installed at the cup mold dwell detection station 72 and connected (signal connection) to each inspection camera assembly. This makes the process more intelligent and automated. When the cup mold body 62 rotates to this station, the sensor 99 receives a signal, which triggers each inspection camera assembly to capture images and perform inspections.

[0025] The cup ejection and demolding station is used to detach the container from the cup mold body 62. This station can be equipped with a suitable cup receiving and conveying structure (such as a pneumatic duct cup conveying device, CN223444665U paper cup conveying mechanism, etc., which are mature technologies). Subsequently, defective products can be rejected based on the detected signals.

[0026] Additionally, the cup mold body 62 has air holes for connecting to the air source suction and discharge container (such as the related structure in the paper cup rotation and turning mechanism in CN218537183U, which is a mature technology). For example, the air holes can be set in the area corresponding to the bottom of the cup and / or the area corresponding to the inner side wall of the cup body. The cup mold body 62 can have built-in air channels for gas flow and communication with the air holes. In addition, air distribution plates, air compression plates, or rotary joints can be provided to connect the air channels so that the cup mold body 62 can operate smoothly during the rotation of the indexing rotary plate 61.

[0027] The second, third, fourth, and fifth lenses 50 are used to detect the rim, outer wall, and bottom rolling surface of the container. Each lens corresponds to the rim (e.g., the lower edge of the rolled rim), outer wall, and bottom rolling surface. Since each lens 50 is angled from the bottom towards the rim at the mold stopping position 81 at the mold stopping detection station 72, when the container is at this position, each lens is angled towards the container, corresponding to the rim, outer wall, and bottom rolling surface. The rolling surface is located on the inner ring of the outer side of the container's bottom. The second, third, fourth, and fifth lenses 50 work together to form a ring around the container, combined with the first lens detecting the bottom, resulting in a comprehensive and relatively compact inspection of the container's exterior. Of course, the container cavity and the area directly opposite the rim can be detected by other detection structures.

[0028] The first inspection camera assembly 1 will be mounted on the bracket 11. The bracket 11 can be adjusted in a relative position on the frame 8 to adjust the position of the camera assembly for accurate inspection. The transverse rotation axis 63 of the indexing rotary disk 61 is mounted on the frame 8.

[0029] The second inspection camera assembly 2 is mounted on the frame 8 via an upper movable base 21. The upper movable base 21 on the frame 8 can be adjusted in a forward and backward position to allow the camera assembly to adjust its position. The upper movable base 21 also has a first transverse rotating shaft 22 for assembling and connecting the second inspection camera assembly 2, allowing the camera assembly to be tilted forward and backward to adjust its angle and position. This adjustment allows it to be tuned to a suitable inspection position to ensure smooth inspection. Furthermore, the first transverse rotating shaft 22 on the upper movable base 21 can also be adjusted vertically, increasing the position adjustment range of the camera assembly.

[0030] The third inspection camera assembly 3 is mounted on the frame 8 via a lower movable base 31. The lower movable base 31 on the frame 8 can be adjusted forward and backward to allow the camera assembly to adjust its position. A second transverse rotating shaft 32 is also provided on the lower movable base 31 for assembling and connecting the third inspection camera assembly 3, allowing the camera assembly to be tilted forward and backward to adjust its angle and position. This adjustment allows for setting the camera to a suitable inspection position, ensuring smooth inspection. Furthermore, the second transverse rotating shaft 32 on the lower movable base 31 can also be adjusted vertically, increasing the range of positional adjustments for the camera assembly.

[0031] The fourth inspection camera assembly 4 is mounted on the frame 8 via a left movable base 41. The left movable base 41 is adjustable in position forward and backward on the frame 8 to allow for adjustment of the camera assembly's position. A first vertical rotating shaft 42 is provided on the left movable base 41 for assembling and connecting the fourth inspection camera assembly 4, allowing the camera assembly to be tilted left and right to adjust its angle and position. This adjustment ensures a suitable inspection position for smooth operation. Furthermore, a first lifting adjustment block is provided on the first vertical rotating shaft 42 for additional height adjustment of the fourth inspection camera assembly 4, increasing the range of positional adjustments. The left and right positions of the base of the first vertical rotating shaft 42 on the left movable base 41 can also be adjusted.

[0032] The fifth inspection camera assembly 5 is mounted on the frame 8 via a right-side movable base 51. The right-side movable base 51 is adjustable in position forward and backward on the frame 8, allowing the camera assembly to be positioned accordingly. A second vertical rotating shaft 52 is also provided on the right-side movable base 51 for assembling and connecting the fifth inspection camera assembly 5, enabling the camera assembly to be tilted left and right to adjust its angle and position. This adjustment allows for setting the camera to a suitable inspection position, ensuring smooth inspection. Furthermore, a second lifting adjustment block is provided on the second vertical rotating shaft 52 for additional height adjustment of the fifth inspection camera assembly 5, increasing the range of positional adjustments. The left and right positions of the base of the second vertical rotating shaft 52 on the right-side movable base 51 can also be adjusted.

[0033] In addition, each camera assembly also includes a fill light and an illumination container. The fill light can be a ring light, with the fill light located on the outer ring of the corresponding lens and the corresponding lens located in the center of the fill light.

Claims

1. A multi-camera automatic detection mechanism for paper containers, comprising an intermittent rotary cup transfer device (6), the intermittent rotary cup transfer device (6) comprising an indexing rotary disk (61) and a cup mold body (62), the cup mold body (62) being connected to the indexing rotary disk (61), characterized in that: The intermittent rotary cup transfer device (6) is equipped with a cup mold dwell detection station (72). The cup mold stopping inspection station (72) is equipped with a first inspection camera assembly (1), a second inspection camera assembly (2), a third inspection camera assembly (3), a fourth inspection camera assembly (4) and a fifth inspection camera assembly (5). The first detection camera assembly (1) includes a first lens facing the bottom of the cup for detection. The second detection camera assembly (2) includes a second lens, The third detection camera assembly (3) includes a third lens, The fourth detection camera assembly (4) includes a fourth lens. The fifth detection camera assembly (5) includes a fifth lens (50). The second, third, fourth, and fifth shots (50) are arranged in a circumferential ring around the first shot in the middle. The second, third, fourth and fifth lenses (50) are respectively positioned at the cup mold stopping position (81) at the cup mold stopping detection station (72) from the bottom of the cup towards the cup opening from the outside to the inside.

2. The multi-camera automatic detection mechanism for paper containers as described in claim 1, characterized in that: The rotation axis of the indexing rotary disk (61) is set horizontally to the left and right. The first lens is located on the front side of the indexing rotary disk (61), and the second, third, fourth and fifth lenses (50) are distributed on the upper, lower and left and right sides of the first lens respectively.

3. The multi-camera automatic detection mechanism for paper containers as described in claim 2, characterized in that: The indexing rotary disk (61) is a four-indexing rotary disk. Four cup mold bodies (62) are evenly distributed on the indexing rotary disk (61) along the rotation direction. Four cup mold stopping positions (81) are correspondingly arranged on the outer periphery of the indexing rotary disk (61). The four cup mold stopping positions (81) are distributed on the front, back, upper and lower sides of the indexing rotary disk (61). The lower side of the indexing rotary table (61) is the cup-filling and molding station (71). The front side of the indexing rotary table (61) is the cup mold dwell detection station (72). The upper and / or rear side of the indexing rotary table (61) is the cup ejection and demolding station.

4. The multi-camera automatic detection mechanism for paper containers as described in claim 1, characterized in that: The cup mold body (62) has air holes for connecting the air source to the air intake and exhaust container.

5. The multi-camera automatic detection mechanism for paper containers as described in claim 1, characterized in that: The second, third, fourth and fifth lenses (50) are used for the rim of the corresponding container, the outer wall of the container body and the bottom rolling surface of the container.

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