A black point detection device for horizontal impregnation drying
By adjusting the position of the moving pressure roller and the angle of the light, the problems of insufficient applicability and detection clarity of the existing device are solved, and efficient detection of different types of paper is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN GUANGMAO HUIXIN NEW MATERIAL TECHNOLOGY CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-07-14
AI Technical Summary
Existing horizontal impregnation and drying devices have a simple structure, cannot adjust the impregnation time according to different types of paper, and have different light reflection and absorption effects, resulting in unclear detection.
An adjustment mechanism is set up to adjust the position of the moving pressure roller and control the immersion time; a rotation mechanism is set up to adjust the light angle and focus, thereby improving the detection clarity.
It achieves applicability and detection accuracy for different types of paper, reduces missed detections and false judgments, and improves the compatibility and detection efficiency of the equipment.
Smart Images

Figure CN224500428U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of industrial machinery and equipment, and in particular to a horizontal impregnation and drying black spot detection device. Background Technology
[0002] After paper undergoes impregnation and drying, black spot detection is often performed to check whether the paper is up to standard. Horizontal impregnation and drying black spot detection equipment is often used at this time. This equipment is an automated detection device used to detect in real time whether there are defects such as black spots on the surface or inside of materials that have undergone impregnation and drying.
[0003] The existing horizontal impregnation and drying equipment has a simple structure, cannot achieve more functions, and has low applicability. Traditional equipment cannot adjust the impregnation time according to different types of paper, resulting in low flexibility. Furthermore, during subsequent quality inspection and black spot detection on the paper surface, different types of paper have different light reflection and absorption effects, and the light angle cannot be adjusted to achieve a clearer photographic effect.
[0004] Therefore, those skilled in the art have provided a horizontal impregnation and drying black spot detection device to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a horizontal impregnation and drying black spot detection device. This device includes an adjustment structure to adjust the position of the moving pressure roller, thereby controlling the impregnation time for different types of paper, improving the applicability of the equipment. It also features a rotating structure to rotate the focusing plate, adjusting the angle and focus of the irradiated light, thus achieving high-brightness imaging of different paper materials, improving detection clarity, process quality, and equipment reliability.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A horizontal impregnation and drying black spot detection device includes a horizontal device body, with an inlet and an outlet respectively provided on both sides of the horizontal device body. An impregnation chamber, a drying chamber and a detection chamber are arranged sequentially between the inlet and the outlet. An adjustment structure is fixedly connected inside the impregnation chamber, and a rotating structure is fixedly connected to both the upper and lower ends of the detection chamber.
[0008] The adjustment structure includes a chute located at the top of the immersion chamber. A threaded rod is fixedly connected inside the immersion chamber. An adjustment motor is fixedly connected to one end of the threaded rod. A slider is threaded onto the outside of the threaded rod. A moving rod is fixedly connected to the bottom of the slider. A moving pressure roller is fixedly connected to the bottom of the moving rod.
[0009] By using the above technical solution and setting an adjustment structure, the horizontal position of the moving pressure roller can be adjusted, thereby controlling the paper impregnation time to adapt to impregnation operations of different papers and improve the applicability of the equipment.
[0010] Furthermore, the rotating structure includes a rotating shaft located inside the horizontal device body. A rotating motor is fixedly connected to one end of the rotating shaft. Two rotating shafts are provided on one side of the rotating shaft. The rotating shaft is meshed with the rotating shaft via a bevel gear. The rotating shaft is rotatably connected to the horizontal device body. A light-concentrating plate is fixedly connected to the outside of the rotating shaft.
[0011] The above technical solution incorporates a rotating structure that allows the light-concentrating plate to be rotated, thereby controlling the angle of light illumination and performing a light-concentrating operation to improve the brightness of the paper surface and facilitate the taking of clear photos.
[0012] Furthermore, the top of the impregnation chamber is provided with two limiting grooves, the inside of the limiting grooves is a sliding limiting block, the bottom of the limiting block is fixedly connected to a limiting rod, and the limiting rod is fixedly connected to the movable pressure roller;
[0013] By using the above technical solution, setting a limiting groove and a limiting block can assist in positioning the moving pressure roller, prevent the moving pressure roller from shaking when moving, and improve the stability of the device.
[0014] Furthermore, an outlet and an inlet are fixedly connected to one side of the impregnation chamber;
[0015] By setting up an outlet and an inlet for the impregnation solution, the impregnation solution is introduced into the impregnation chamber, preventing the loss of impregnation solution from affecting the paper impregnation operation and improving the continuity of equipment operation.
[0016] Furthermore, the interior of the horizontal device body is provided with a first port and a second port. The impregnation chamber is connected to the drying chamber through the first port, and the drying chamber is fixedly connected to the detection chamber through the second port. The inlet, outlet and second port are each rotatably connected to two moving rollers. The top inner part of the first port is rotatably connected to a moving roller, and the bottom inner part of the first port is fixedly connected to a second fixed roller. The interior of the impregnation chamber is rotatably connected to a first fixed roller.
[0017] The above technical solution involves setting a moving roller to convey the paper and using a first fixed roller to squeeze the paper, thereby changing the paper conveying path and achieving the effect of simultaneously conveying and impregnating the paper.
[0018] Furthermore, a scraper is fixedly connected to one side of the movable pressure roller and the second fixed roller;
[0019] The above technical solution involves using a scraper to remove excess impregnation liquid adhering to the paper, preventing paper damage and ensuring smooth subsequent operations.
[0020] Furthermore, a filter screen is fixedly connected to one side of the drying chamber, a drying motor is fixedly connected to one side of the filter screen, a fan blade is fixedly connected to the output end of the drying motor, a heating plate is provided on the side of the fan blade away from the drying motor, and a ventilation plate is fixedly connected to the other side of the drying chamber.
[0021] The above technical solution involves setting a drying motor to drive the fan blades to rotate and working with a heating plate to quickly dry the impregnated paper, thereby improving drying efficiency.
[0022] Furthermore, a linear array camera and multiple LED lights are fixedly connected to both the upper and lower ends of the interior of the detection chamber, and a controller is fixedly connected to one side of the horizontal device body.
[0023] The above technical solution involves setting LED lights to illuminate the paper surface and setting a line scan camera to scan the image in real time. The acquired image is converted into a digital signal and transmitted to the controller. The controller processes the image, including image binarization, filtering, and feature extraction. By analyzing the black pixels in the image, the system can count the number, area, and distribution of black dots, achieving automated detection, facilitating operation, and improving detection efficiency.
[0024] This utility model has the following beneficial effects:
[0025] 1. This utility model proposes a horizontal impregnation and drying black spot detection device. By setting an adjustment structure, the slider is controlled by an adjusting motor and a threaded rod to adjust the horizontal position of the moving pressure roller, thereby controlling the paper impregnation time to adapt to the impregnation operation of different papers. This allows for adjustment of the corresponding impregnation time for different paper materials, improving the compatibility and applicability of the equipment. The use of limiting grooves and limiting blocks can assist in the positioning of the moving pressure roller to prevent it from shaking during movement. The use of a scraper to remove excess impregnation liquid from the paper ensures the stability of subsequent paper processing, improves the reliability of equipment use, reduces raw material waste and energy consumption, and ensures the safety and stability of production.
[0026] 2. The horizontal impregnation and drying black spot detection device proposed in this utility model, by setting a rotating structure, can drive the rotating shaft to rotate by using a rotating motor and rotating shaft, thereby adjusting the vertical angle of the light-concentrating plate, accurately controlling the incident light angle, ensuring that the light is uniformly focused on the paper surface, significantly enhancing the recognition rate of small defects such as black spots, reducing the risk of missed detection or misjudgment, improving detection accuracy and sensitivity. The rotating structure allows for real-time adjustment of the light concentration ratio and energy distribution, adapting to the light reflection characteristics of different paper materials, ensuring consistent high-brightness shooting effect, avoiding detection deviations caused by material differences, and improving the adaptability of the equipment. Attached Figure Description
[0027] Figure 1 A perspective view of a horizontal impregnation and drying black spot detection device proposed in this utility model;
[0028] Figure 2 This is an isometric view of a horizontal impregnation and drying black spot detection device proposed in this utility model;
[0029] Figure 3 This is a cross-sectional view of a horizontal impregnation and drying black spot detection device proposed in this utility model;
[0030] Figure 4 This is a cross-sectional view of the adjustment structure of a horizontal impregnation and drying black spot detection device proposed in this utility model;
[0031] Figure 5 This is a cross-sectional view of the rotating structure of a horizontal impregnation and drying black spot detection device proposed in this utility model.
[0032] Explanation of reference numerals in the attached figures:
[0033] 1. Horizontal device body; 2. Feed inlet; 3. Filter screen; 4. Controller; 5. Liquid outlet; 6. Liquid inlet; 7. Ventilation plate; 8. Adjustment structure; 801. Limit groove; 802. Limit block; 803. Limit rod; 804. Adjustment motor; 805. Sliding block; 806. Threaded rod; 807. Slide groove; 808. Moving rod; 809. Moving pressure roller; 9. Rotating structure; 901. Rotating motor; 90 2. Rotating shaft; 903. Bevel gear; 904. Rotating shaft; 905. Concentrating plate; 10. Impregnation chamber; 11. Drying chamber; 12. Inspection chamber; 13. Moving roller; 14. First outlet; 15. Second outlet; 16. Drying motor; 17. Fan blade; 18. Heating plate; 19. First fixed roller; 20. Scraper; 21. Second fixed roller; 22. Discharge port; 23. Linear array camera; 24. LED light. Detailed Implementation
[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0035] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides a specific implementation method:
[0036] A horizontal impregnation and drying black spot detection device includes a horizontal device body 1. An inlet 2 and an outlet 22 are respectively arranged on both sides of the horizontal device body 1. An impregnation chamber 10, a drying chamber 11, and a detection chamber 12 are arranged sequentially between the inlet 2 and the outlet 22. An adjustment structure 8 is fixedly connected inside the impregnation chamber 10. Rotating structures 9 are fixedly connected to both the upper and lower ends of the detection chamber 12. The adjustment structure 8 includes a slide 807 located at the top of the impregnation chamber 10. A threaded rod 806 is fixedly connected inside the impregnation chamber 10. An adjusting motor 804 is fixedly connected to one end of the threaded rod 806. The external thread of the 6 is fitted with a slider 805. A moving rod 808 is fixedly connected to the bottom of the slider 805. A moving pressure roller 809 is fixedly connected to the bottom of the moving rod 808. An adjustment structure 8 is provided to adjust the horizontal position of the moving pressure roller 809, thereby controlling the paper impregnation time to adapt to the impregnation operation of different papers and improve the applicability of the equipment. The top of the impregnation chamber 10 is provided with two limiting grooves 801. A limiting block 802 slides inside the limiting groove 801. A limiting rod 803 is fixedly connected to the bottom of the limiting block 802. The limiting rod 803 is fixedly connected to the moving pressure roller 809. The limiting grooves 801 and the limiting blocks are provided. 802 can assist in positioning the moving pressure roller 809, preventing it from shaking during movement and improving device stability. An outlet 5 and an inlet 6 are fixedly connected to one side of the impregnation chamber 10. These outlets allow impregnation liquid to be supplied to the impregnation chamber 10, preventing liquid loss from affecting the paper impregnation process and improving the continuity of equipment operation. The horizontal device body 1 has a first opening 14 and a second opening 15 inside. The impregnation chamber 10 is connected to the drying chamber 11 through the first opening 14, and the drying chamber 11 is fixedly connected to the detection chamber 12 through the second opening 15. The inlet 2, outlet 22, and... The second opening 15 has two rotating rollers 13 rotatably connected inside. The first opening 14 has a rotating roller 13 rotatably connected to its inner top, and a second fixed roller 21 is fixedly connected to its inner bottom. The impregnation chamber 10 has a rotating first fixed roller 19 rotatably connected inside. The rotating rollers 13 convey the paper, and the first fixed roller 19 squeezes the paper, changing the paper's conveying path and achieving the effect of impregnating the paper while it is being transported. The movable pressure roller 809 and the second fixed roller 21 are fixedly connected to a scraper 20 on one side. The scraper 20 scrapes off excess impregnation liquid adhering to the paper to prevent damage to the paper and affect subsequent operations.
[0037] Reference Figure 2 , Figure 3 and Figure 5The rotating structure 9 includes a rotating shaft 902 located inside the horizontal device body 1. A rotating motor 901 is fixedly connected to one end of the rotating shaft 902. Two rotating shafts 904 are arranged on one side of the rotating shaft 902. The rotating shaft 902 is meshed with the rotating shafts 904 via bevel gears 903. The rotating shafts 904 are rotatably connected to the horizontal device body 1. A light-concentrating plate 905 is fixedly connected to the outside of the rotating shafts 904. The rotating structure 9 allows the light-concentrating plate 905 to rotate, thereby controlling the light angle and performing a focusing operation to improve the brightness of the paper surface, facilitating the taking of clear photographs. A filter screen 3 is fixedly connected to one side of the drying chamber 11, and a drying motor 16 is fixedly connected to one side of the filter screen 3. A fan blade 17 is fixedly connected to the output end of the drying motor 16, with the fan blade 17 located away from the drying motor 16. A heating plate 18 is installed on one side, and a ventilation plate 7 is fixedly connected to the other side of the drying chamber 11. A drying motor 16 drives the fan blades 17 to rotate and work with the heating plate 18 to quickly dry the impregnated paper, improving drying efficiency. Linear scan cameras 23 and multiple LED lights 24 are fixedly connected to the upper and lower ends of the detection chamber 12. A controller 4 is fixedly connected to one side of the horizontal device body 1. LED lights 24 illuminate the paper surface, and the linear scan camera 23 scans the image in real time, converting the acquired image into a digital signal and transmitting it to the controller 4. The controller 4 processes the image, including image binarization, filtering, and feature extraction. By analyzing the black pixels in the image, the system can count the number, area, and distribution of black dots, achieving automated detection, facilitating operation, and improving detection efficiency.
[0038] Working Principle: When this horizontal impregnation and drying black spot detection equipment is working, the paper enters the equipment through the feed inlet 2 and first reaches the impregnation chamber 10. Impregnation liquid is input into the impregnation chamber 10 through the liquid inlet 6 to ensure sufficient impregnation liquid and prevent the paper impregnation operation from being affected by the lack of impregnation liquid. In the impregnation chamber 10, the paper is guided by the first fixed roller 19 and enters the impregnation liquid for impregnation. The regulating motor 804 is started to drive the threaded rod 806 to rotate. The slider 805 on the threaded rod 806 moves along the slide groove 807, thereby driving the moving rod 808 and the moving pressure roller 809 to move. The moving pressure roller 809 is adjusted to a horizontal position through the adjusting structure 8 to control the residence time of the paper in the impregnation liquid. After impregnation, the paper enters the drying chamber 11 through the first outlet 14. The drying motor 16 is started to drive the fan blade 17 to rotate, generating airflow. The heating plate 18 heats the airflow to form hot air. The hot air is blown evenly onto the paper to quickly dry the paper. The paper is quickly dried, and after drying, it enters the inspection chamber 12 through the second port 15. The rotating motor 901 is started, which drives the rotating shaft 902 to rotate, and through the bevel gear 903, it drives the rotating shaft 904 to rotate, thereby adjusting the vertical angle of the light-concentrating plate 905. The light-concentrating plate 905 focuses the light onto the paper surface, increasing the brightness of the paper surface and making it easier to take clear photos. The line scan camera 23 scans the paper surface in real time and acquires images. The LED light 24 provides a uniform light source to ensure the quality of image acquisition. The acquired image signal is transmitted to the controller 4, which processes the image, including image binarization, filtering, and feature extraction. By analyzing the black pixels in the image, the system counts the number, area, and distribution of black pixels to achieve automated detection. After detection, the paper is output from the discharge port 22. The controller 4 feeds back the detection results to the operator for subsequent quality control and process adjustment.
[0039] The following points should be noted in this article:
[0040] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in a general design.
[0041] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.
[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A horizontal impregnation and drying black spot detection device, comprising a horizontal device body (1), characterized in that: The horizontal device body (1) is provided with a feed inlet (2) and a discharge outlet (22) on both sides respectively. Between the feed inlet (2) and the discharge outlet (22), an impregnation chamber (10), a drying chamber (11) and a testing chamber (12) are arranged in sequence. An adjustment structure (8) is fixedly connected inside the impregnation chamber (10), and a rotating structure (9) is fixedly connected at both the upper and lower ends of the testing chamber (12). The adjustment structure (8) includes a chute (807) located at the top of the impregnation chamber (10). A threaded rod (806) is fixedly connected inside the impregnation chamber (10). An adjustment motor (804) is fixedly connected to one end of the threaded rod (806). A slider (805) is threaded onto the outside of the threaded rod (806). A moving rod (808) is fixedly connected to the bottom of the slider (805). A moving pressure roller (809) is fixedly connected to the bottom of the moving rod (808).
2. The horizontal impregnation and drying black spot detection device according to claim 1, characterized in that: The rotating structure (9) includes a rotating shaft (902), which is located inside the horizontal device body (1). One end of the rotating shaft (902) is fixedly connected to a rotating motor (901). Two rotating shafts (904) are provided on one side of the rotating shaft (902). The rotating shaft (902) is meshed with the rotating shaft (904) through a bevel gear (903). The rotating shaft (904) is rotatably connected to the horizontal device body (1). A light-concentrating plate (905) is fixedly connected to the outside of the rotating shaft (904).
3. The black spot detection device for horizontal impregnation and drying according to claim 1, characterized in that: The top of the impregnation chamber (10) is provided with two limiting grooves (801), and a limiting block (802) slides inside the limiting groove (801). A limiting rod (803) is fixedly connected to the bottom of the limiting block (802), and the limiting rod (803) is fixedly connected to the movable pressure roller (809).
4. The black spot detection device for horizontal impregnation and drying according to claim 1, characterized in that: One side of the impregnation chamber (10) is fixedly connected to an outlet (5) and an inlet (6).
5. The black spot detection device for horizontal impregnation and drying according to claim 1, characterized in that: The horizontal device body (1) is provided with a first port (14) and a second port (15). The impregnation chamber (10) is connected to the drying chamber (11) through the first port (14). The drying chamber (11) is fixedly connected to the detection chamber (12) through the second port (15). The feed inlet (2), the discharge outlet (22), and the second port (15) are all rotatably connected to two moving rollers (13). The moving roller (13) is rotatably connected to the top of the first port (14). The second fixed roller (21) is fixedly connected to the bottom of the first port (14). The first fixed roller (19) is rotatably connected to the inside of the impregnation chamber (10).
6. The black spot detection device for horizontal impregnation and drying according to claim 1, characterized in that: A scraper (20) is fixedly connected to one side of the movable pressure roller (809) and the second fixed roller (21).
7. The horizontal impregnation and drying black spot detection device according to claim 1, characterized in that: A filter screen (3) is fixedly connected to one side of the drying chamber (11), a drying motor (16) is fixedly connected to one side of the filter screen (3), a fan blade (17) is fixedly connected to the output end of the drying motor (16), a heating plate (18) is provided on the side of the fan blade (17) away from the drying motor (16), and a ventilation plate (7) is fixedly connected to the other side of the drying chamber (11).
8. The black spot detection device for horizontal impregnation and drying according to claim 1, characterized in that: Linear array cameras (23) and multiple LED lights (24) are fixedly connected to both the upper and lower ends of the detection chamber (12), and a controller (4) is fixedly connected to one side of the horizontal device body (1).