Appearance detecting and sorting device for food package

Abstract

The utility model discloses a food package appearance detecting and sorting device, and relates to the technical field of food production, the food package appearance detecting and sorting device comprises a feeding conveyor and a pushing assembly which are arranged in parallel, a detecting and sorting mechanism is arranged between the feeding conveyor and the pushing assembly, and the detecting and sorting mechanism comprises an appearance detecting assembly and a sorting assembly, the appearance detection assembly comprises a fixing frame, and a hollow shaft is rotatably arranged on the surface of the fixing frame in a penetrating mode. According to the food package appearance detecting and sorting device, the rotating disc is driven by the motor to drive the food package to turn over by 360 degrees between the first transparent glass plate and the second transparent glass plate, and image acquisition and image processing algorithm analysis are conducted in cooperation with the image acquisition camera; the problem that in traditional detection, due to the fact that the package cannot be turned over, only specific positions can be detected is solved, all surfaces, corners and the overall appearance of the food package can be comprehensively and accurately detected, and the coverage rate and accuracy of detection are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of food production technology, specifically a food packaging appearance inspection and sorting device. Background Technology

[0002] Food packaging bags are a type of packaging design. In order to facilitate the preservation and storage of food, product packaging bags have been developed. Food packaging bags refer to thin film containers that come into direct contact with food and are used to hold and protect food.

[0003] In the prior art, such as in publication number CN218902747U, a food packaging sealing performance testing device is disclosed, which includes a base, a structural shell, and a functional box. This invention uses a conveying component to transport food packaging to several testing components, which then test the sealing performance of the food packaging. For food packaging with acceptable sealing, the corresponding testing component drives a rotating component to rotate, causing a baffle to reciprocate, ending the interception of the food packaging. After passing the test by the testing components, the food packaging is then conveyed away from the structural shell by the conveying component. For food packaging with unacceptable sealing, the baffle cannot reciprocate, and the baffle intercepts the food packaging. Furthermore, under the action of the conveying component, the food packaging triggers a pressure sensor, causing a rejection component to activate and remove it from the structural shell, thus achieving the detection of food packaging sealing performance and the rejection of unacceptable food packaging.

[0004] While the aforementioned patent describes a device that can detect the airtightness of food packaging, appearance inspection is also a crucial step, directly impacting product quality, image, and market acceptance. Current appearance inspection technologies typically use visual cameras to capture images and combine them with algorithms for detection. However, since the packaging cannot be flipped during image acquisition, only specific areas of the packaging can be inspected, reducing the effectiveness of the inspection. Therefore, this invention provides a food packaging appearance inspection and sorting device. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a food packaging appearance inspection and sorting device, which solves the problem that during the image acquisition process, the packaging cannot be flipped over, resulting in the inability to inspect only specific locations of the packaging and thus reducing the inspection effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a food packaging appearance inspection and sorting device, comprising a feeding conveyor and a pushing assembly arranged in parallel, wherein an inspection and sorting mechanism is provided between the feeding conveyor and the pushing assembly, and the inspection and sorting mechanism includes:

[0007] An appearance inspection component includes a fixed frame with a hollow shaft rotatably extending through its surface. A turntable is mounted at one end of the hollow shaft, and a fixed platform is mounted on the end face of the turntable. A pressure block is provided on one side of the fixed platform, and a first transparent glass plate is provided between the fixed platform and the pressure block. A groove is formed on the end face of the turntable away from the pressure block, and a threaded rod is provided inside the groove. A slider is threadedly connected to the outer wall of the threaded rod, and the slider is slidably connected to the groove. An L-shaped bracket is mounted on the surface of the slider, and a pressure plate is provided inside the L-shaped bracket. A second transparent glass plate is provided between the L-shaped bracket and the pressure plate.

[0008] The sorting components are mounted on a fixed frame.

[0009] Preferably, a pushing assembly is provided on one side of the feeding conveyor. The pushing assembly includes a side plate installed on the side of the feeding conveyor. A first cylinder is installed on one side of the side plate. The telescopic end of the first cylinder slides through the surface of the side plate and extends to the other side. A first push plate is installed on the telescopic end of the first cylinder. The first push plate can push the food packaging on the feeding conveyor so that the food packaging can be moved to the discharging conveyor after passing through the appearance inspection component.

[0010] Preferably, a limiting plate for limiting the food packaging is installed on the other side surface of the side plate, and a baffle for limiting the food packaging is installed on one side of the discharge conveyor.

[0011] Preferably, an image acquisition camera is installed on the inner top surface of the fixed frame, the image acquisition camera is positioned above the turntable, a first gear is sleeved on the outer wall of the hollow shaft, a motor is installed on the inner wall of the fixed frame below the turntable, the output shaft end of the motor moves through the inner wall of the fixed frame and extends outward, and a second gear that meshes with the first gear is installed on the output shaft end of the motor.

[0012] Preferably, the sorting assembly includes a support frame mounted on the outer surface of the fixed frame, a second cylinder mounted on the inner wall, and a second push plate mounted on the telescopic end. The second push plate can sequentially pass through the hollow shaft, the turntable, and the fixed platform and extend to the other side.

[0013] Preferably, the pressure block and the fixed platform are connected by bolts to clamp and fix the first transparent glass plate, and the L-shaped bracket and the pressure plate are connected by bolts to clamp and fix the second transparent glass plate. The surface of the second transparent glass plate facing the feeding conveyor is provided with a bevel.

[0014] Beneficial effects

[0015] This utility model provides a food packaging appearance inspection and sorting device. Compared with the prior art, it has the following advantages:

[0016] (1) The food packaging appearance inspection and sorting device drives the turntable driven by the motor to rotate the food packaging 360 degrees between the first transparent glass plate and the second transparent glass plate. With the help of the image acquisition camera, image acquisition and image processing algorithm analysis are performed. This solves the problem that traditional inspection can only be carried out on specific positions because the packaging cannot be rotated. It can carry out comprehensive and accurate inspection of all surfaces, corners and overall appearance of food packaging, which greatly improves the coverage and accuracy of inspection.

[0017] (2) The food packaging appearance inspection and sorting device can adjust the relative position of the second transparent glass plate and the first transparent glass plate by using a slider in cooperation with the threaded rod and the slide groove, so that the device can adapt to food packaging of different sizes and improve the versatility of the device. Attached Figure Description

[0018] Figure 1 This is a three-dimensional appearance schematic diagram of the present utility model;

[0019] Figure 2 This is a sectional view of the fixing frame and support frame of this utility model;

[0020] Figure 3 This is a cross-sectional view of a portion of the appearance inspection mechanism of this utility model;

[0021] Figure 4 This is a partial exploded view of the appearance inspection mechanism of this utility model.

[0022] In the diagram: 1. Feeding conveyor; 2. Pushing assembly; 21. Side plate; 22. First cylinder; 23. First push plate; 24. Limiting plate; 3. Discharge conveyor; 31. Baffle; 4. Appearance inspection assembly; 41. Fixing frame; 42. Image acquisition camera; 43. Turntable; 44. Hollow shaft; 45. First gear; 46. Motor; 47. Second gear; 48. Fixing platform; 49. Pressure block; 410. First transparent glass plate; 411. Slide rail; 412. Threaded rod; 413. Sliding block; 414. L-shaped bracket; 415. Pressure plate; 416. Second transparent glass plate; 417. Bevel; 5. Sorting assembly; 51. Support frame; 52. Second cylinder; 53. Second push plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides a technical solution:

[0025] Figures 1-4 One embodiment is shown: a food packaging appearance inspection and sorting device, including a feeding conveyor 1 and a pushing assembly 2 arranged in parallel, with an inspection and sorting mechanism provided between the feeding conveyor 1 and the pushing assembly 2, the inspection and sorting mechanism including:

[0026] The appearance inspection component 4 includes a fixed frame 41. A hollow shaft 44 is rotatably provided on the surface of the fixed frame 41. A turntable 43 is installed at one end of the hollow shaft 44. A fixed platform 48 is installed on the end face of the turntable 43. A pressure block 49 is provided on one side of the fixed platform 48. A first transparent glass plate 410 is provided between the fixed platform 48 and the pressure block 49. A sliding groove 411 is opened on the end face of the turntable 43 away from the pressure block 49. A threaded rod 412 is provided inside the sliding groove 411. A slider 413 is threadedly connected to the outer wall of the threaded rod 412, and the slider 413 is slidably connected to the sliding groove 411. An L-shaped bracket 414 is installed on the surface of the slider 413. A pressure plate 415 is provided on the inner side of the L-shaped bracket 414. A second transparent glass plate 416 is provided between the L-shaped bracket 414 and the pressure plate 415.

[0027] The sorting component 5 is installed on the fixed frame 41.

[0028] Specifically, when the hollow shaft 44 and the turntable 43 rotate, the food packaging between the first transparent glass plate 410 and the second transparent glass plate 416 is flipped. During the flipping process, the image acquisition camera 42 captures images of the food packaging appearance, and the image processing algorithm analyzes the captured images to effectively detect the appearance of each side of the packaging, overcoming the drawback that can only detect specific positions because the packaging cannot be flipped.

[0029] In this embodiment, a pushing assembly 2 is provided on one side of the feeding conveyor 1. The pushing assembly 2 includes a side plate 21 installed on the side of the feeding conveyor 1. A first cylinder 22 is installed on one side of the side plate 21. The telescopic end of the first cylinder 22 slides through the surface of the side plate 21 and extends to the other side. A first push plate 23 is installed on the telescopic end of the first cylinder 22. The food packaging on the feeding conveyor 1 can be pushed by the first push plate 23, so that the food packaging can be moved to the discharge conveyor 3 through the appearance inspection assembly 4.

[0030] Specifically, the first cylinder 22 can drive the first push plate 23 to move. When the food packaging reaches the corresponding position on the feeding conveyor 1, the first push plate 23 pushes the food packaging from the feeding conveyor 1 to the detection position of the appearance inspection component 4 to prepare for subsequent appearance inspection. After the appearance inspection is completed, the first push plate 23 can also continue to push the packaging into the discharge conveyor 3 according to the inspection results.

[0031] In this embodiment, a limiting plate 24 for limiting the food packaging is installed on the other side surface of the side plate 21, and a baffle 31 for limiting the food packaging is installed on one side of the discharge conveyor 3.

[0032] Specifically, the limiting plate 24 can intercept and limit the food packaging being conveyed on the feeding conveyor 1, ensuring that the pushing component 2 can push the packaging into the appearance inspection component 4 and the discharge conveyor 3. When the packaging is pushed onto the discharge conveyor 3, the baffle 31 can limit the packaging.

[0033] In this embodiment, an image acquisition camera 42 is installed on the inner top surface of the fixed frame 41. The image acquisition camera 42 is positioned above the turntable 43. A first gear 45 is sleeved on the outer wall of the hollow shaft 44. A motor 46 is installed on the inner wall of the fixed frame 41 below the turntable 43. The output shaft end of the motor 46 moves through the inner wall of the fixed frame 41 and extends outward. A second gear 47 that meshes with the first gear 45 is installed on the output shaft end of the motor 46.

[0034] Specifically, the second gear 47 is driven to rotate by the motor 46. Since the second gear 47 meshes with the first gear 45, it drives the hollow shaft 44 and the turntable 43 to rotate. When the turntable 43 rotates, the food packaging placed on it rotates accordingly. The image acquisition camera 42 can then acquire images of the food packaging from different angles to ensure comprehensive acquisition of the appearance information of the food packaging.

[0035] In this embodiment, the sorting assembly 5 includes a support frame 51 installed on the outer surface of the fixed frame 41, a second cylinder 52 installed on the inner wall, and a second push plate 53 installed at the telescopic end. The second push plate 53 can sequentially pass through the hollow shaft 44, the turntable 43 and the fixed platform 48 and extend to the other side.

[0036] Specifically, after the appearance inspection is completed, if the product fails to meet the inspection requirements, the second cylinder 52 drives the second push plate 53 to move. The second push plate 53 passes through the hollow shaft 44, the turntable 43 and the fixed platform 48 in sequence to push out the inspected food packaging, ensuring that qualified and unqualified products can be effectively separated.

[0037] In this embodiment, the pressure block 49 and the fixed platform 48 are connected by bolts to clamp and fix the first transparent glass plate 410, and the L-shaped bracket 414 and the pressure plate 415 are connected by bolts to clamp and fix the second transparent glass plate 416. The surface of the second transparent glass plate 416 facing the feeding conveyor 1 is provided with a bevel 417.

[0038] Specifically, the pressure block 49 and the fixing platform 48 are bolted together to firmly fix the first transparent glass plate 410 onto the turntable 43, forming a stable bearing platform to ensure the stability of the food packaging during appearance inspection. Similarly, the bolted connection between the L-shaped bracket 414 and the pressure plate 415 fixes the second transparent glass plate 416 to ensure that it can provide good support and positioning for the food packaging.

[0039] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0040] During operation, food packaging is conveyed on the feeding conveyor 1. When the food packaging is conveyed to the pushing assembly 2, the first cylinder 22 pushes the first push plate 23, pushing the food packaging between the first transparent glass plate 410 and the second transparent glass plate 416 in the appearance inspection assembly 4. Afterwards, the first push plate 23 retracts. At this time, the motor 46 drives the second gear 47 to rotate. The first gear 45, which meshes with the second gear 47, drives the hollow shaft 44 and the turntable 43 to rotate, thereby causing the food packaging between the first transparent glass plate 410 and the second transparent glass plate 416 to flip. During the flipping process, the image acquisition camera 42 captures images of the food packaging appearance, and the image processing algorithm analyzes the captured images to effectively detect the appearance of each side of the packaging. This overcomes the drawback of only being able to detect specific locations because the packaging cannot be flipped. If the food packaging is qualified, the first cylinder 22 pushes the first push plate 23 to move and push the food packaging onto the discharge conveyor 3. If it is unqualified, the second cylinder 52 pushes the second push plate 53 to move and push the food packaging out, thereby realizing the detection and sorting functions of the food packaging appearance.

[0041] Throughout the process, the limiting plate 24 and the baffle 31 limit the food packaging and prevent it from deviating from the predetermined path during transportation or pushing, thereby realizing the functions of food packaging appearance detection and sorting. The inclined edge 417 of the second transparent glass plate 416 facilitates the sliding of the food packaging. Under the threaded transmission of the threaded rod 412 and the sliding cooperation with the slide groove 411, the slider 413 can adjust the position of the second transparent glass plate 416 to adapt to food packaging of different sizes.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A food packaging appearance inspection and sorting device, comprising a feeding conveyor (1) and a pushing assembly (2) arranged in parallel, characterized in that: A detection and sorting mechanism is provided between the feeding conveyor (1) and the pushing assembly (2), the detection and sorting mechanism comprising: The appearance inspection component (4) includes a fixing frame (41), a hollow shaft (44) is rotatably provided on the surface of the fixing frame (41), a turntable (43) is installed at one end of the hollow shaft (44), a fixed platform (48) is installed on the end face of the turntable (43), a pressure block (49) is provided on one side of the fixed platform (48), a first transparent glass plate (410) is provided between the fixed platform (48) and the pressure block (49), and the end face of the turntable (43) is away from the pressure block (410). A groove (411) is provided at position 9), and a threaded rod (412) is provided inside the groove (411). A slider (413) is threadedly connected to the outer wall of the threaded rod (412), and the slider (413) is slidably connected to the groove (411). An L-shaped bracket (414) is installed on the surface of the slider (413), and a pressure plate (415) is provided on the inner side of the L-shaped bracket (414). A second transparent glass plate (416) is provided between the L-shaped bracket (414) and the pressure plate (415). The sorting component (5) is mounted on the fixed frame (41).

2. The food packaging appearance inspection and sorting device according to claim 1, characterized in that: The feeding conveyor (1) is provided with a pushing assembly (2) on one side. The pushing assembly (2) includes a side plate (21) installed on the side of the feeding conveyor (1). A first cylinder (22) is installed on one side of the side plate (21). The telescopic end of the first cylinder (22) slides through the surface of the side plate (21) and extends to the other side. A first push plate (23) is installed on the telescopic end of the first cylinder (22). The food packaging on the feeding conveyor (1) can be pushed by the first push plate (23), so that the food packaging can be moved to the discharge conveyor (3) through the appearance inspection assembly (4).

3. The food packaging appearance inspection and sorting device according to claim 2, characterized in that: A limiting plate (24) for limiting the food packaging is installed on the other side surface of the side plate (21), and a baffle (31) for limiting the food packaging is installed on one side of the discharge conveyor (3).

4. The food packaging appearance inspection and sorting device according to claim 1, characterized in that: An image acquisition camera (42) is installed on the inner top surface of the fixed frame (41). The image acquisition camera (42) is positioned above the turntable (43). A first gear (45) is sleeved on the outer wall of the hollow shaft (44). A motor (46) is installed on the inner wall of the fixed frame (41) below the turntable (43). The output shaft of the motor (46) extends outward through the inner wall of the fixed frame (41). A second gear (47) that meshes with the first gear (45) is installed on the output shaft of the motor (46).

5. The food packaging appearance inspection and sorting device according to claim 1, characterized in that: The sorting assembly (5) includes a support frame (51) mounted on the outer surface of the fixed frame (41), a second cylinder (52) mounted on the inner wall, and a second push plate (53) mounted on the telescopic end. The second push plate (53) can pass through the hollow shaft (44), the turntable (43) and the fixed platform (48) in sequence and extend to the other side.

6. The food packaging appearance inspection and sorting device according to claim 1, characterized in that: The pressure block (49) and the fixed platform (48) are connected by bolts to clamp and fix the first transparent glass plate (410). The L-shaped bracket (414) and the pressure plate (415) are connected by bolts to clamp and fix the second transparent glass plate (416). The surface of the second transparent glass plate (416) facing the feeding conveyor (1) is provided with a bevel (417).

Images