Paper product detection equipment

Abstract

The utility model discloses paper product detection equipment. The paper product detection equipment comprises a visual equipment module; the double-station discharging module is provided with two incoming material pipelines which are in butt joint with the forming machine, and it is ensured that the paper cups stably fall onto the clamp assembly through a multi-layer support assembly; the rotary platform disc module comprises a rotary platform disc, a plurality of stations are arranged on the rotary platform disc, the stations correspond to different detection positions, and the visual equipment module is used for carrying out omnibearing quality detection on the paper cups; and the non-defective product and defective product discharging module is used for respectively blowing qualified products and unqualified products to corresponding collecting areas by utilizing an electromagnetic valve control pipeline according to the judgment result of the visual equipment module. According to the utility model, a fixed shooting mode is adopted, the paper cup is firstly stopped and then shot, the problem of fuzzy and unstable imaging of mobile shooting is solved, one camera is adopted to shoot the paper cup at one station, and the problems of mutual interference of light sources and poor imaging are solved.

Description

A paper product testing device Technical Field

[0001] This utility model belongs to the field of paper product testing technology, and in particular to a paper product testing device. Background Technology

[0002] Paper product inspection equipment is a device specifically designed for automated quality inspection and classification of paper products such as paper cups. With the development of modern manufacturing, the demand for paper products is not only reflected in quantity but also in the consistency and reliability of quality. Traditional paper product inspection typically relies on manual operation or simple mechanical devices, which suffers from low efficiency, high error rates, and difficulty in adapting to large-scale production needs. To overcome these limitations, this solution proposes a paper product (paper bowls, paper cups, paper buckets, or paper products with bottom seals) inspection device that integrates visual inspection, automatic feeding, and classification functions.

[0003] In the current paper product manufacturing industry, especially in paper cup production, ensuring that every product meets stringent quality standards is crucial. However, existing testing methods often fall short of this requirement. First, traditional manual inspection methods are not only time-consuming and labor-intensive, but also prone to misjudgments or missed detections due to human factors. Second, while semi-automated testing equipment can improve efficiency to some extent, its design limitations, such as incomplete detection due to single-view inspection and poor adaptability to different paper cup sizes, still cannot fully meet the needs of high-quality production. Furthermore, existing systems lack effective data collection and analysis capabilities, failing to provide strong support for subsequent process improvements. Summary of the Invention

[0004] The purpose of this invention is to provide a paper product testing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a paper product testing device, comprising:

[0006] Vision device module;

[0007] The dual-station unloading module has two material inlet pipes that connect to the forming machine, and the multi-layer support assembly ensures that the paper cups fall stably onto the clamping assembly.

[0008] The rotary platform module includes a rotary platform with multiple workstations, each workstation corresponding to a different detection position, and a vision device module is used to perform all-round quality inspection on the paper cups;

[0009] The good and bad product discharge module uses solenoid valves to control the pipeline to blow qualified and unqualified products to their respective collection areas based on the judgment results of the vision equipment module.

[0010] The testing equipment operates in conjunction with the aforementioned modules to realize the entire process of paper cup operation, from raw material supply, paper cup feeding, quality testing, and classification collection.

[0011] In this preferred embodiment, the vision device module includes at least five cameras, which are respectively arranged at different inspection stations to detect the quality of the body and bottom of the paper cup.

[0012] In a preferred embodiment of this solution, the dual-station unloading module further includes multiple synchronous wheels located at the lower part, ensuring that the operation of the synchronous wheels guarantees that the paper cup can smoothly transition from the screw shaft to the clamp.

[0013] In a preferred embodiment of this solution, the top surface of the rotary platform includes at least eight workstations, each workstation is provided with a paper cup mold rack, and the top of each paper cup mold rack is provided with a paper cup mold for inverting paper cups.

[0014] In a preferred embodiment of this solution, the dual-station unloading module further includes a multi-layer support assembly, which comprises a lower support plate, a middle support plate, and an upper support plate connected together from bottom to top.

[0015] In this preferred embodiment, the top surface of the upper support plate is symmetrically provided with two branch feeding pipes for feeding paper cups, and the top surface of the middle support plate is provided with a main feeding pipe. The bottom ends of the two branch feeding pipes converge and connect to the top of the main feeding pipe.

[0016] In a preferred embodiment, a bottom discharge pipe is provided through the top surface of the lower support plate, the bottom end of the main discharge pipe is connected to the top end of the bottom discharge pipe, a plurality of synchronous pulleys are arranged around the bottom discharge pipe, and a plurality of variable pitch screws are provided on the bottom surface of the lower support plate.

[0017] In a preferred embodiment of this scheme, the good and defective product discharge module further includes a first pipe and a second pipe arranged symmetrically, and a storage box is provided at the bottom of both the first pipe and the second pipe, wherein the first pipe is the qualified product discharge pipe and the second pipe is the unqualified product discharge pipe.

[0018] In a preferred embodiment, the vision device module includes a first camera located on one side of the rotary platform, a second camera located on the top surface of the center of the rotary platform, a third camera located on the other side of the rotary platform, a fourth camera located symmetrically to the third camera and on the top surface of the rotary platform, and a fifth camera located beside the fourth camera. The top surface of the rotary platform also includes a loading station, a defective product unloading station, and a good product unloading station. The first camera is located beside the loading station.

[0019] In this preferred embodiment, a motor is installed on the bottom surface of the rotary platform disk, a central tube is installed at the center of the top surface of the rotary platform disk, and multiple air pipes are arranged in an array around the central tube, with each air pipe connected to each workstation.

[0020] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0021] This paper product inspection equipment includes a vision module with at least five cameras distributed across different inspection stations, enabling comprehensive and detailed inspection of paper cups. Each station is dedicated to detecting specific types of defects, such as those on the cup body or bottom. Compared to traditional single-view or limited-view inspection methods, multi-angle, high-resolution vision inspection significantly improves inspection accuracy, reduces missed detection rates and false positive rates, and ensures the consistency and stability of product quality.

[0022] This solution uses a fixed-shot method, where the paper cup is stopped before the photo is taken, solving the problem of blurry and unstable images when the photo is taken while moving. This solution uses one camera at one workstation to take pictures of the paper cup, solving the problem of mutual interference of light sources and poor image quality. This solution increases the equipment detection cycle time to 240 PCS / min.

[0023] The synchronous pulley, variable pitch screw, and air hose work together to ensure the stability and accuracy of the paper cups throughout the transfer process. The good and bad product discharge module accurately classifies products and sends them to the corresponding storage bins based on the judgment results of the vision equipment. This not only improves the reliability and durability of the system but also effectively avoids product damage or classification errors caused by transfer failures, further enhancing production efficiency and product quality. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 is a schematic diagram of the structure of this utility model;

[0026] Figure 2 is a structural schematic diagram of the dual-station unloading module of this utility model;

[0027] Figure 3 is a schematic diagram of the structure of the rotary platform disk of this utility model;

[0028] Figure 4 is a schematic diagram of the structure of the good and bad product discharge module of this utility model;

[0029] Figure 5 is a schematic diagram of the connection structure of the variable pitch screw of this utility model;

[0030] Figure 6 is a top view of the rotary platform disk of this utility model.

[0031] Explanation of reference numerals in the attached figures:

[0032] In the diagram: 1. Vision equipment module; 2. Dual-station unloading module; 3. Rotary platform module; 4. Good and defective product unloading module; 5. Multi-layer support assembly; 6. Lower support plate; 7. Middle support plate; 8. Upper support plate; 9. Paper cup component; 10. Branch unloading pipe; 11. Main unloading pipe; 12. Bottom unloading pipe; 13. Variable pitch screw; 14. Rotary platform; 15. Motor; 16. Paper cup mold holder; 17. Central pipe; 18. Air pipe; 19. Storage box; 20. First pipe; 21. Second pipe; 22. Synchronous pulley; 23. First camera; 24. Loading station; 25. Second camera; 26. Third camera; 27. Fourth camera; 28. Fifth camera; 29. ​​Defective product unloading station; 30. Good product unloading station; 31. Paper cup mold. Detailed Implementation

[0033] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0034] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0035] This embodiment provides a paper product inspection device as shown in Figures 1 to 6, including a vision device module 1, a dual-station unloading module 2, a rotary platform module 3, and a good and bad product unloading module 4;

[0036] The dual-station unloading module 2 has two material inlet pipes for docking forming machines, and the multi-layer support assembly 5 ensures that the paper cup 9 falls stably onto the clamping assembly;

[0037] Rotary platform module 3 includes a rotary platform 14, which has multiple workstations, each corresponding to a different detection position. The vision device module 1 is used to perform all-round quality inspection on the paper cup 9.

[0038] Based on the judgment result of the vision device module 1, the good and bad product discharge module 4 uses a solenoid valve to control the pipeline to blow the qualified and unqualified products to the corresponding collection areas respectively.

[0039] The testing equipment operates in conjunction with the above modules to realize the entire process of paper cup 9 from raw material supply, paper cup feeding, quality testing to classification and collection.

[0040] In this embodiment, the vision device module 1 includes at least five cameras, which are respectively arranged at different inspection stations to inspect the quality of the body and bottom of the paper cup 9. The multi-angle, all-around inspection capability captures all details on the surface of the paper cup, ensuring no blind spots in the inspection. The collaborative work of multiple cameras improves inspection accuracy, reduces the possibility of misjudgment due to a single perspective, and the rich image data provides a foundation for subsequent analysis, contributing to continuous improvement of the production process.

[0041] In this embodiment, the dual-station unloading module 2 also includes multiple synchronous rollers 22 disposed at the lower part, ensuring that the paper cup 9 can smoothly transition from the screw shaft to the clamp. The design of the synchronous rollers ensures the stability of the paper cup during the transmission process, avoiding damage caused by vibration or tilting. The cooperation between the synchronous rollers and the screw shaft improves the smoothness of the entire unloading process and reduces blockages and jamming. The synchronous rollers 22 ensure the smooth transition of the paper cup onto the clamp, while the variable-pitch screw 13 is responsible for stable descent. The combination of the two not only ensures the stability of the paper cup during the transmission process, but also allows for adjustment of the spacing according to actual needs, adapting to different sizes of paper cups, thereby enhancing the versatility and flexibility of the system.

[0042] In this embodiment, the top surface of the rotary platform 14 includes at least eight workstations, each equipped with a paper cup mold rack 16, and each paper cup mold rack 16 has a paper cup mold 31 for inverting paper cups 9 at its top. Each workstation can perform specialized inspections for different types of defects, improving the targeting and effectiveness of the inspections. The eight-workstation design makes full use of the space of the rotary platform, achieving a compact and efficient layout. The independent design of each workstation facilitates individual inspection and maintenance without affecting the normal operation of other parts.

[0043] In this embodiment, the dual-station unloading module 2 also includes a multi-layer support assembly 5, which includes a lower support plate 6, a middle support plate 7, and an upper support plate 8 connected together from bottom to top.

[0044] In this embodiment, two branch feeding pipes 10 for feeding paper cups 9 are symmetrically and continuously arranged on the top surface of the upper support plate 8, and a main feeding pipe 11 is continuously arranged on the top surface of the middle support plate 7. The bottom ends of the two branch feeding pipes 10 converge and connect to the top end of the main feeding pipe 11.

[0045] In this embodiment, a feeding bottom pipe 12 is provided through the top surface of the lower support plate 6, the bottom end of the feeding main pipe 11 is connected through the top end of the feeding bottom pipe 12, multiple synchronous wheels 22 are arranged around the feeding bottom pipe 12, and multiple variable pitch screws 13 are provided on the bottom surface of the lower support plate 6.

[0046] In this embodiment, the good and defective product discharge module 4 also includes a first pipe 20 and a second pipe 21 arranged symmetrically. The bottom end of the first pipe 20 and the second pipe 21 are both provided with a storage box 19. The first pipe 20 is the qualified product discharge pipe, and the second pipe 21 is the unqualified product discharge pipe.

[0047] In this embodiment, the vision device module 1 includes a first camera 23 located on one side of the rotary platform 14, a second camera 25 located on the top surface of the center of the rotary platform 14, a third camera 26 located on the other side of the rotary platform 14, a fourth camera 27 located symmetrically to the third camera 26 and on the top surface of the rotary platform 14, and a fifth camera 28 located beside the fourth camera 27. The top surface of the rotary platform 14 also has a loading station 24, a defective product unloading station 29, and a good product unloading station 30. The first camera 23 is located beside the loading station 24. The cameras in different positions ensure comprehensive monitoring of every part of the paper cup, without missing any possible defects. The fast and accurate image acquisition and processing capabilities provide instant feedback, which helps to adjust production line parameters in a timely manner.

[0048] In this embodiment, a motor 15 is installed on the bottom surface of the rotary platform 14. The motor 15 drives the rotary platform to rotate, causing the paper cups to pass through each detection station sequentially. During this process, the speed control of the motor 15 directly affects the detection efficiency and accuracy. Appropriately adjusting the motor speed can accelerate the processing speed without sacrificing detection quality, thereby maximizing efficiency. A central tube 17 is installed at the center of the top surface of the rotary platform 14, and multiple air pipes 18 are arranged in an array around the central tube 17. Each air pipe 18 is connected to each station. The central tube 17 is located at the center of the top surface of the rotary platform 14, and multiple air pipes 18 are arranged in an array around it. This layout not only supports the sorting and blowing of paper cups, but also helps to maintain the overall balance of the rotary platform to a certain extent, reducing vibration or instability caused by imbalance, and indirectly improving detection accuracy and work efficiency.

[0049] Working principle

[0050] In this paper product testing equipment, paper cups 9 from two butt-jointing forming machines enter the system through branch feeding pipes 10, main feeding pipes 11, and bottom feeding pipes 12 in the multi-layer support assembly 5. Four variable-pitch screws 13 ensure that the paper cups can smoothly transition from the screw shaft to the clamps. During the feeding process, multiple synchronous pulleys 22 are arranged around the bottom feeding pipe 12 to ensure that the paper cups 9 can fall stably and accurately to the designated position on the rotary platform 14. The multi-layer support assembly 5 consists of a lower support plate 6, a middle support plate 7, and an upper support plate 8, supporting the entire feeding structure and ensuring that the paper cups fall smoothly onto the rotary platform 14.

[0051] The rotary platform module 3 has an eight-station rotary platform 14, with each station corresponding to a different inspection position. The paper cup 9 is placed upside down on the paper cup mold 31 at the top of the paper cup mold rack 16. The vision equipment module 1 includes at least five cameras: a first camera 23, a second camera 25, a third camera 26, a fourth camera 27, and a fifth camera 28, distributed at different inspection stations to perform comprehensive quality inspection on the body and bottom of the paper cup. The first camera 23 is located next to the loading station 24 for initial inspection. The second camera 25 is located on the top center of the rotary platform 14 for further detailed inspection. The third camera 26, the fourth camera 27, and the fifth camera 28 are respectively arranged at other key inspection points to ensure comprehensive coverage of all possible defect areas.

[0052] Based on the judgment results of the vision equipment module 1, the good and bad product discharge module 4 uses a solenoid valve to control the pipeline to blow qualified and unqualified products to the corresponding collection areas. The motor 15 drives the rotary platform disk 14 to rotate, so that the paper cups pass through each detection station in sequence. Each air pipe 18 is connected to one station and is used to selectively blow paper cups according to the results after the detection is completed. The first pipe 20 serves as the qualified product discharge pipe and is connected to the storage box 19 to collect qualified products. The second pipe 21 serves as the unqualified product discharge pipe and is also connected to the storage box 19 to collect unqualified products.

[0053] It should be noted that, in this document, relational terms such as "one" and "two" are used merely 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 a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0054] 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 paper product testing device, characterized in that, include: The system includes a vision device module (1), a dual-station unloading module (2) with two material inlet pipes for the forming machine, and a multi-layer support assembly (5) to ensure that the paper cup (9) falls stably onto the clamping assembly; a rotary platform plate module (3) including a rotary platform plate (14) with multiple stations, each station corresponding to a different detection position, and the vision device module (1) to perform all-round quality inspection on the paper cup (9); a good and bad product discharge module (4) that, based on the judgment result of the vision device module (1), uses a solenoid valve to control the pipeline to blow qualified and unqualified products to the corresponding collection areas; wherein, the detection equipment operates in cooperation with the above modules to realize the whole process operation of paper cup (9) from raw material supply, paper cup unloading, quality inspection to classification collection.

2. The paper product testing equipment according to claim 1, characterized in that: The vision device module (1) includes at least five cameras, which are arranged at different inspection stations to detect the quality of the body and bottom of the paper cup (9).

3. The paper product testing equipment according to claim 2, characterized in that: The dual-station unloading module (2) also includes multiple synchronous wheels (22) located at the bottom, so that the operation of the synchronous wheels (22) ensures that the paper cup (9) can smoothly transition from the screw shaft to the clamp.

4. The paper product testing equipment according to claim 3, characterized in that: The top surface of the rotary platform (14) includes at least eight workstations, each of which is provided with a paper cup mold rack (16), and each of the paper cup mold racks (16) is provided with a paper cup mold (31) for placing paper cups (9) upside down at the top.

5. The paper product testing equipment according to claim 4, characterized in that: The dual-station unloading module (2) also includes a multi-layer support assembly (5), which includes a lower support plate (6), a middle support plate (7) and an upper support plate (8) connected together from bottom to top.

6. The paper product testing equipment according to claim 5, characterized in that: The top surface of the upper support plate (8) is symmetrically provided with two branch feeding pipes (10) for feeding paper cups (9), and the top surface of the middle support plate (7) is provided with a main feeding pipe (11). The bottom ends of the two branch feeding pipes (10) are connected to the top of the main feeding pipe (11).

7. The paper product testing equipment according to claim 6, characterized in that: The bottom surface of the lower support plate (6) is provided with a feeding bottom pipe (12), the bottom end of the feeding main pipe (11) is connected to the top end of the feeding bottom pipe (12), a plurality of synchronous pulleys (22) are arranged around the feeding bottom pipe (12), and a plurality of variable pitch screws (13) are provided on the bottom surface of the lower support plate (6).

8. The paper product testing equipment according to claim 7, characterized in that: The good and bad product discharge module (4) also includes a first pipe (20) and a second pipe (21) arranged symmetrically. The bottom end of the first pipe (20) and the second pipe (21) is provided with a storage box (19). The first pipe (20) is the qualified product discharge pipe and the second pipe (21) is the unqualified product discharge pipe.

9. A paper product testing device according to claim 8, characterized in that: The vision device module (1) includes a first camera (23) disposed on one side of the rotary platform disk (14), a second camera (25) disposed on the top surface of the center of the rotary platform disk (14), a third camera (26) disposed on the other side of the rotary platform disk (14), a fourth camera (27) disposed on the symmetrical side of the third camera (26) and located on the top surface of the rotary platform disk (14), and a fifth camera (28) disposed next to the fourth camera (27). The top surface of the rotary platform disk (14) is also provided with a loading station (24), a defective product unloading station (29), and a good product unloading station (30).

10. A paper product testing device according to claim 9, characterized in that: The bottom surface of the rotary platform disk (14) is provided with a motor (15), and the center of the top surface of the rotary platform disk (14) is provided with a central tube (17). Multiple air pipes (18) are arranged in an array around the central tube (17), and each air pipe (18) is connected to each workstation.

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