Inspection equipment for automatic capping machine for packaging bowls
By rotating the packaging bowls and using distance sensors and vision controllers to detect lid deflection, the high cost of existing equipment is solved and low-cost detection and sorting functions are achieved.
Patent Information
- Application Number
- CN202510780767.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-12
- Publication Date
- 2025-09-26
AI Technical Summary
The inspection equipment used in existing automatic capping machines for packaging bowls is expensive to detect whether the lid is skewed, and it is difficult to accurately determine the position and posture of the lid in three-dimensional space.
The system uses an electric push rod, guide frame, linkage and drive unit to rotate the packaging bowl and perform multi-point distance measurement through distance sensors. Combined with a visual controller, it determines the deflection of the lid and sorts qualified and defective products.
It can realize low-cost detection of whether the packaging bowl is leaking the lid, whether the colander and lid are skewed, and can quickly sort out defective products, reducing detection costs.
Smart Images
Figure CN120696085A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of packaging equipment, and in particular relates to an inspection device for an automatic capping machine for packaging bowls. Background Art
[0002] The automatic capping machine for packaging bowls is a highly efficient equipment specially used for automatic packaging of fast food. The packaging process mainly includes the following key steps. First, the plastic bowls that have been filled and sealed are placed on the conveyor belt. Then, the spoons are added and the lids are placed in sequence through automated equipment. Then, the plastic bowls are transferred from the conveyor belt to the automatic capping machine in a predetermined order, where precise capping operations are performed to ensure the sealing and integrity of the packaging. In order to effectively avoid the occurrence of leaking spoons or lids before capping, as well as leaking spoons, lids, lid deviation or other abnormal conditions after capping, inspection equipment needs to be set at the import and export of the automatic capping mechanism for detection and monitoring.
[0003] Existing inspection equipment usually uses machine vision technology, that is, using machines to replace human eyes for inspection and judgment. The principle is to convert the captured target into image signals through an image capture device (such as an industrial camera), and then transmit these signals to a dedicated image processing device (such as a vision controller). The image processing device will analyze and process the image signals to complete the appearance inspection of the captured target. For example, when detecting whether there is a transparent cover on a plastic bowl and whether there is a spoon under the cover, the industrial camera is usually installed directly above the plastic bowl, capturing the image from top to bottom. However, this inspection method of shooting from above has certain limitations. It is difficult to accurately detect whether the lid is tilted. This is because shooting from above can only obtain a flat image of the lid, but cannot intuitively reflect the position and posture of the lid in three-dimensional space. If a new industrial camera is added on one side, the lid may appear to have one end closer to the side industrial camera higher than the other end, resulting in misjudgment. Therefore, adding an industrial camera on only one side is not enough. New industrial cameras need to be added on both sides to solve this problem. However, this judgment method is not only costly, but also places higher requirements on the information processing capabilities of the vision controller. Therefore, based on the above problems, an inspection device for an automatic lid pressing machine for packaging bowls is proposed. Summary of the Invention
[0004] In view of the above shortcomings, the present invention discloses an inspection device for an automatic capping machine for packaging bowls to solve the problem that the existing inspection device for automatic capping machine for packaging bowls detects whether the cover of the packaging bowl is skewed, which is costly.
[0005] The present invention is achieved by adopting the following technical solutions: An inspection device for an automatic capping machine for packaging bowls, comprising a base, a conveying mechanism and an automatic capping device, wherein a conveying mechanism is installed at a groove of the base, a plurality of packaging bowls arranged at equal distances are placed on the upper side of the conveying mechanism, an automatic capping device is installed on the upper side of the base, and inspection modules are installed on the left and right sides of the automatic capping device, the inspection module comprises a support plate fixed to the upper side of the base, a guide channel longitudinally penetrating the inner side of the upper flat plate of the support plate is provided, an annular groove is provided on the lower side of the upper flat plate of the support plate, an electric push rod is fixedly connected to the upper side of the support plate, and a driving rod of the electric push rod is provided in front The end is fixedly connected to a guide frame, the inner side of the guide frame is slidably connected to a linkage running through the guide channel, and a driving part is installed at the support plate, and the driving part includes a ring sleeve fixedly connected to the lower end of the linkage, and the upper side of the ring sleeve is fixedly connected to a limit rotating sleeve rotatably connected to the ring groove, and the front side of the lower end face of the ring sleeve is fixedly connected to connecting rods on both sides, and the lower ends of the connecting rods are fixedly connected to symmetrically arranged guide shells, and a group of transmission mechanisms are installed in the opposite side grooves of the guide shells, an industrial camera and a distance sensor are installed on the lower side of the upper flat plate cone of the support plate, and a visual controller is installed on the upper side of the upper flat plate of the support plate.
[0006] Preferably, the front end surface of the base is provided with mounting grooves on both the left and right sides, the inner sides of the mounting grooves are provided with defective product collection bins, and the defective product collection bins are provided directly in front of the inspection module.
[0007] Preferably, a control box is installed on the front side of the automatic capping equipment, and the control box is electrically connected to the automatic capping equipment and the conveying mechanism. The transmission mechanism is composed of a transmission belt, a synchronous roller and a motor. The visual controller is electrically connected to the industrial camera, the distance sensor, the electric push rod and the motor of the transmission mechanism.
[0008] Preferably, the industrial camera and the distance sensor are both arranged between the front and rear transmission mechanisms, and the industrial camera and the distance sensor are both arranged on the upper side of the packaging bowl, and the distance sensor is located at a non-center position of the support plate cone.
[0009] Preferably, the guide channel adopts a quarter-circular arc structure, the length of the guide frame is larger than the radius of the guide channel, the diameter of the connecting member is the same as the inner width of the guide channel, and the connecting member and the guide channel are arranged in a sliding connection.
[0010] Preferably, the packaging bowl consists of a bowl body, a cover body and a spoon on the lower side of the cover body, and the spacing between the front and rear conveyor belts of the conveying mechanism is the same as the diameter of the bowl body of the packaging bowl.
[0011] Preferably, guide plate frames are fixedly connected to the front and rear sides of the upper end face of the base, and the guide plate frames are arranged on the left side of the inspection module. The guide plate frames are composed of a pair of folding rods and guide plates. The spacing between the guide plates of a group of the guide plate frames is the same as the diameter of the bowl body of the packaging bowl.
[0012] Compared with the existing technology, this technical solution has the following beneficial effects: The present invention provides an electric push rod, a guide frame, a connecting piece, a driving part and other structures, so that the electric push rod cooperates with the guide frame and the connecting piece to make the driving part rotate 90 degrees, and the driving part can drive the packaging bowl part in between. One driving method is to rotate the packaging bowl part. At this time, the distance sensor that enters the continuous distance measurement mode will perform multi-point distance measurement on the lid of the rotating packaging bowl part. The same data or little difference indicates that it is qualified. The large deviation of the data indicates that the lid of the packaging bowl part is skewed and needs to be sorted out. At this time, another driving method can transport the defective packaging bowl part to the defective collection area, so that the inspection equipment of the automatic capping machine for packaging bowls can detect whether the packaging bowl part has a missing lid, a colander and whether the lid is skewed at a lower cost, and can quickly sort out unqualified defective products and send them to the defective area, effectively solving the problem of high cost of the existing automatic capping machine for packaging bowls for detecting whether the lid of the packaging bowl part is skewed. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention.
[0014] Figure 2 It is a structural schematic diagram of the base of the present invention.
[0015] Figure 3 It is a bottom view structural diagram of the inspection module of the present invention.
[0016] Figure 4 It is a schematic diagram of the top view of the inspection module of the present invention.
[0017] Figure 5 It is a structural schematic diagram of the support plate of the present invention.
[0018] Figure 6 It is a structural schematic diagram of the driving part of the present invention.
[0019] Figure 7 It is a schematic diagram of the split structure of the guide shell and the transmission mechanism of the present invention.
[0020] In the figure: 1. Base; 2. Conveying mechanism; 3. Automatic capping equipment; 4. Mounting groove; 5. Defective product collection bin; 6. Inspection module; 61. Support plate; 62. Guide; 63. Ring groove; 64. Electric push rod; 65. Guide frame; 66. Linkage; 67. Driving part; 671. Ring sleeve; 672. Limiting sleeve; 673. Connecting rod; 674. Guide shell; 675. Conveying mechanism; 68. Industrial camera; 69. Distance sensor; 7. Vision controller; 8. Control box; 9. Guide plate rack; 10. Packaging bowl. DETAILED DESCRIPTION
[0021] The present invention is further illustrated by the following examples, which are not intended to limit the present invention. Specific experimental conditions and methods not specified in the following examples are conventional methods well known to those skilled in the art.
[0022] Example 1: An inspection device for an automatic capping machine for packaging bowls, comprising a base 1, a conveying mechanism 2 and an automatic capping device 3. The conveying mechanism 2 is installed at the groove of the base 1, and a number of packaging bowls 10 arranged at equal distances are placed on the upper side of the conveying mechanism 2. The automatic capping device 3 is installed on the upper side of the base 1. Inspection modules 6 are installed on the left and right sides of the automatic capping device 3. The inspection module 6 includes a support plate 61 fixed to the upper side of the base 1. A guide channel 62 is provided longitudinally through the inner side of the upper flat plate of the support plate 61. An annular groove 63 is provided on the lower side of the upper flat plate of the support plate 61. An electric push rod 64 is fixedly connected to the upper side of the support plate 61, and a guide frame 65 is fixedly connected to the front end of the driving rod of the electric push rod 64. , the inner side of the guide frame 65 is slidably connected with a linkage 66 that passes through the guide channel 62, and a driving part 67 is installed on the support plate 61. The driving part 67 includes a ring sleeve 671 fixedly connected to the lower end of the linkage 66, and the upper side of the ring sleeve 671 is fixedly connected to a limit rotating sleeve 672 rotatably connected to the ring groove 63. Both sides of the front side of the lower end face of the ring sleeve 671 are fixedly connected with connecting rods 673, and the lower ends of the connecting rods 673 are fixedly connected to symmetrically arranged guide shells 674. A transmission mechanism 675 is installed in the opposite side grooves of a group of guide shells 674. An industrial camera 68 and a distance sensor 69 are installed on the lower side of the upper flat plate cone of the support plate 61, and a visual controller 7 is installed on the upper side of the upper flat plate of the support plate 61.
[0023] Example 2: The inspection equipment for the automatic capping machine for packaging bowls described in this example is different from the equipment described in Example 1 only in that mounting grooves 4 are provided on both sides of the front end surface of the base 1, and defective product collection bins 5 are installed on the inner sides of the mounting grooves 4. The defective product collection bins 5 are arranged in front of the inspection module 6. Through this arrangement, the defective product collection bins 5 can receive defective packaging bowls 10 discharged from the inspection module 6; a control box 8 is installed on the front side of the automatic capping device 3, and the control box 8 is electrically connected to the automatic capping device 3 and the conveying mechanism 2. Through this arrangement, the control box 8 can control the automatic capping device 3 and the conveying mechanism 2. The transmission mechanism 675 is composed of a transmission belt, a synchronous roller and a motor. The visual controller 7 is electrically connected to the industrial camera 68, the distance sensor 69, the electric push rod 64 and the motor of the transmission mechanism 675. Through this setting, the visual controller 7 can receive information from the industrial camera 68 and the distance sensor 69 and control the operation of the electric push rod 64 and the transmission mechanism 675; the industrial camera 68 and the distance sensor 69 are both arranged between the front and rear transmission mechanisms 675, and the industrial camera 68 and the distance sensor 69 are both arranged on the upper side of the packaging bowl 10. Through this setting, when the packaging bowl 10 is displaced between the front and rear transmission mechanisms 675, the industrial camera 68 and the distance sensor 69 can collect data on the packaging bowl 10. The distance sensor 69 is in the circle of the support plate 61 The guide frame 65 is located at a non-center position of the platform. Through this arrangement, when the packaging bowl 10 rotates, the distance sensor 69 can perform multi-point detection on the lid of the packaging bowl 10; the guide 62 adopts a quarter-circular arc structure, the length of the guide frame 65 is greater than the radius of the guide 62, and the diameter of the connecting member 66 is the same as the inner width of the guide 62. Through this arrangement, when the guide frame 65 pushes the connecting member 66 to move forward, the guide frame 65 has enough length to allow the connecting member 66 to move forward and laterally with the guide 62 as the guide until the connecting member 66 moves to the front end of the guide 62. The connecting member 66 and the guide 62 are slidingly connected. This arrangement improves the stability of the connecting member 66 during displacement; The component 10 is composed of a bowl body, a cover body and a spoon on the lower side of the cover body. The spacing between the conveyor belts of the front and rear conveying mechanisms 675 is the same as the diameter of the bowl body of the packaging bowl component 10. Through this arrangement, the packaging bowl component 10 can contact the conveyor belt of the conveying mechanism 675 when it is between the front and rear conveying mechanisms 675; the upper end face of the base 1 is fixedly connected with a guide plate frame 9 on both the front and rear sides, and the guide plate frame 9 is arranged on the left side of the inspection module 6. The guide plate frame 9 is composed of a pair of folding rods and a guide plate. The spacing between the guide plates of a group of guide plate frames 9 is the same as the diameter of the bowl body of the packaging bowl component 10. Through this arrangement, the guide plate frame 9 can guide the displacement of the packaging bowl component 10 to avoid the deviation of the packaging bowl component 10.
[0024] The working process of the inspection device for the automatic capping machine for packaging bowls described in this embodiment is as follows: The electrical appliances of the equipment are all powered by external power, the conveying mechanism 2 and the automatic capping device 3 are controlled by a control box 8, and the inspection module 6 is controlled by a visual controller 7.
[0025] First, the packaging bowl 10 with the spoon and lid added is transported to the stepping or intermittent conveying mechanism 2 through an external automatic conveying device. Then, under the guidance of the conveying mechanism 2 and the front and rear guide racks 9, each packaging bowl 10 is transported to the left inspection module 6 in turn. When the packaging bowl 10 is between a group of conveying mechanisms 675, the distance sensor 69 will detect the change in distance and send an electrical signal to the visual controller 7 to indicate that the packaging bowl 10 is in place, and at the same time, it enters the continuous distance measurement mode; at this time, the visual controller 7 will control the industrial camera 68 to operate and take pictures of the packaging bowl 10. The pictures taken will be sent to the visual controller 7 for processing to determine whether there is any In the case of a colander or a colander cover, at the same time, the vision controller 7 will also control the electric push rod 64 to extend, pushing the guide frame 65 forward. The forward movement of the guide frame 65 will drive the linkage 66 to move along the guide 62, and the displacement of the linkage 66 will drive the entire driving part 67 to rotate 90 degrees, so that the subsequent packaging bowl 10 is blocked by the rotated guide shell 674. In addition, the vision controller 7 will also control the transmission mechanisms 675 on both sides to operate in forward and reverse directions, that is, the transmission mechanism 675 on one side runs forward, and the transmission mechanism 675 on the other side runs reversely. The transmission mechanisms 675 running in forward and reverse directions will drive the bowl body of the packaging bowl 10 in contact with it to rotate, and the rotation of the bowl body will drive the lid to rotate. At this time, the distance sensor 69 which has entered the continuous distance measurement mode will perform multi-point distance measurement on the rotating lid and send the obtained data to the visual controller 7 for processing. If the data are the same or the deviation is not large, it indicates that the lid on the packaging bowl 10 is not skewed; on the contrary, if the deviation is large or there is a colander or a leaking lid, it indicates that the lid of the packaging bowl 10 is skewed, and the packaging bowl 10 is a defective product that needs to be sorted out. At this time, the visual controller 7 will control the transmission mechanism 675 on both sides to run towards the defective product collection bin 5 at the same time, and transport the unqualified packaging bowl 10 to the defective product collection bin 5 to complete the sorting of defective products. For qualified products, the visual controller 7 will control the drive mechanism 675 on both sides to move towards the defective product collection bin 5 at the same time, and transport the unqualified packaging bowl 10 to the defective product collection bin 5 to complete the sorting of defective products. The moving part 67 is reset and rotated back to the normal position, and the transmission mechanism 675 is stopped. The qualified products are transported to the automatic capping equipment 3 for capping through the conveying mechanism 2. The packaging bowl 10 after capping will move to the right inspection module 6 and undergo the same inspection process as the left inspection module 6 to avoid false inspections in the previous inspection process. In this way, the inspection equipment used in the automatic capping machine for packaging bowls can detect whether the packaging bowl 10 is missing the cover, the colander, and whether the cover is skewed at a relatively low cost, and can quickly sort out unqualified defective products and send them to the defective product area, effectively solving the problem of high cost of the existing inspection equipment used in the automatic capping machine for packaging bowls to detect whether the cover of the packaging bowl 10 is skewed.
[0026] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.
Claims
1. An inspection device for an automatic capping machine for packaging bowls, comprising a base (1), a conveying mechanism (2) and an automatic capping device (3), characterized in that: A conveying mechanism (2) is installed at the groove of the base (1), and a plurality of packaging bowls (10) are placed on the upper side of the conveying mechanism (2) at equal intervals. An automatic capping device (3) is installed on the upper side of the base (1), and inspection modules (6) are installed on the left and right sides of the automatic capping device (3). The inspection module (6) includes a support plate (61) fixed on the upper side of the base (1), a guide channel (62) is provided on the inner side of the upper plate of the support plate (61) and a ring groove (63) is provided on the lower side of the upper plate of the support plate (61). An electric push rod (64) is fixedly connected to the upper side of the support plate (61), and a front end of a driving rod of the electric push rod (64) is fixedly connected to a guide frame (65). The inner side of the guide frame (65) is slidably connected to the guide channel (62). 2) of the connecting member (66), a driving part (67) is installed at the support plate (61), the driving part (67) includes a ring sleeve (671) fixedly connected to the lower end of the connecting member (66), the upper side of the ring sleeve (671) is fixedly connected to a limit rotating sleeve (672) rotatably connected to the ring groove (63), both sides of the front side of the lower end of the ring sleeve (671) are fixedly connected to connecting rods (673), the lower ends of the connecting rods (673) are fixedly connected to guide shells (674) arranged symmetrically, a group of the guide shells (674) are installed in the grooves on the opposite sides thereof with a transmission mechanism (675), the lower side of the upper flat plate frustum of the support plate (61) is installed with an industrial camera (68) and a distance sensor (69), and the upper side of the upper flat plate of the support plate (61) is installed with a visual controller (7).
2. The inspection device for an automatic capping machine for packaging bowls according to claim 1, characterized in that: The front end surface of the base (1) is provided with mounting grooves (4) on both left and right sides, and defective product collection bins (5) are installed inside the mounting grooves (4). The defective product collection bins (5) are arranged directly in front of the inspection module (6).
3. The inspection device for an automatic capping machine for packaging bowls according to claim 1, characterized in that: A control box (8) is installed on the front side of the automatic capping device (3). The control box (8) is electrically connected to the automatic capping device (3) and the conveying mechanism (2). The transmission mechanism (675) is composed of a transmission belt, a synchronous roller and a motor. The visual controller (7) is electrically connected to the industrial camera (68), the distance sensor (69), the electric push rod (64) and the motor of the transmission mechanism (675).
4. The inspection device for an automatic capping machine for packaging bowls according to claim 3, characterized in that: The industrial camera (68) and the distance sensor (69) are both arranged between the front and rear transmission mechanisms (675), and the industrial camera (68) and the distance sensor (69) are both arranged on the upper side of the packaging bowl (10), and the distance sensor (69) is located at a non-center position of the support plate (61) truncated cone.
5. The inspection device for the automatic capping machine for packaging bowls according to claim 3, characterized in that: The guideway (62) adopts a quarter-circular arc structure, the length of the guide frame (65) is larger than the radius of the guideway (62), the diameter of the linking member (66) is the same as the inner width of the guideway (62), and the linking member (66) and the guideway (62) are arranged in a sliding connection.
6. The inspection device for an automatic capping machine for packaging bowls according to claim 3, characterized in that: The packaging bowl (10) is composed of a bowl body, a cover body, and a spoon on the lower side of the cover body, and the spacing between the front and rear conveyor belts of the conveying mechanism (675) is the same as the diameter of the bowl body of the packaging bowl (10).
7. The inspection device for the automatic capping machine for packaging bowls according to claim 6, characterized in that: Guide plate racks (9) are fixedly connected to both the front and rear sides of the upper end face of the base (1). The guide plate racks (9) are arranged on the left side of the inspection module (6). The guide plate racks (9) are composed of a pair of folding rods and guide plates. The spacing between the guide plates of a group of the guide plate racks (9) is the same as the diameter of the bowl body of the packaging bowl (10).