Screen automatic detection system based on vibration separating screen
By designing an automatic screen detection system on a vibrating sorting screen, and utilizing a camera module and image analysis technology, the problem of detection accuracy caused by screen slack and mesh size changes was solved, realizing automated monitoring and standardized detection of screen specifications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-26
- Publication Date
- 2026-04-21
AI Technical Summary
The screens of existing vibrating sorting screens are prone to loosening or changes in mesh size during use, which affects the accuracy of detection. There is a lack of automatic detection systems to ensure that the screen specifications meet the standards.
An automatic screen detection system based on a vibrating sorting screen was designed, including a support and guiding mechanism, a power transmission mechanism, and a screen detection mechanism. The system uses a camera module to take pictures and performs image data analysis through an industrial control computer to detect the slack and mesh size changes of the screen in real time.
This system enables regular checks to ensure that the screens meet standard parameters, thereby guaranteeing the accuracy of the vibrating sorting screen and improving the reliability and precision of the checks.
Smart Images

Figure CN224142784U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of vibrating sorting screen mesh detection technology in the tobacco industry, specifically an automatic mesh detection system based on a vibrating sorting screen. Background Technology
[0002] With the development of the tobacco industry, the variety of cigarettes is becoming increasingly diversified, with new categories such as medium, short, and slim cigarettes constantly emerging and their market share growing year by year. Consumers have increasingly higher requirements for product quality. Therefore, the determination of the size of tobacco leaves, the whole tobacco rate, and the broken tobacco rate is essential during the tobacco raw material production process. According to the standards GB / T 21137-2007 "Determination of Tobacco Leaf Size" and YC / T 178-2003 "Determination of Whole Tobacco Rate and Broken Tobacco Rate," vibrating sorting sieves are used to separate tobacco materials into various sizes using sieves of different specifications. All sieves used for material separation are stainless steel woven mesh. The standards specify certain requirements and precision for the size, aperture, and wire diameter of the sieves. However, due to rough cleaning or reaching the specified service life during instrument use, the sieves may become loose and the mesh size may change. Therefore, the instrument needs an automatic sieve detection system to perform regular self-checks to ensure that the sieve specifications meet the standard parameters, thereby ensuring the accuracy of the instrument's testing. Utility Model Content
[0003] The purpose of this utility model is to provide an automatic screen detection system based on a vibrating sorting screen, specifically designed based on the above-mentioned existing technology, which can be used to detect whether the screen specifications meet the standard parameters.
[0004] The objective of this utility model is achieved through the following technical solution:
[0005] An automatic screen detection system based on a vibrating sorting screen includes a support and guiding mechanism, a power transmission mechanism, a screen detection mechanism, and an industrial control computer.
[0006] The support and guide mechanism includes two guide shafts arranged on the left and right, front and rear fixed support plates, and two guide bearing seats. The two ends of the guide shafts are fixed to the front and rear fixed support plates respectively, and the guide bearing seats are mounted on the guide shafts and can slide back and forth.
[0007] The power transmission mechanism includes a synchronous shaft driven by a drive motor, a driving wheel mounted at both ends of the synchronous shaft, front and rear driven wheels, an idler wheel, and a synchronous belt that cooperates with each wheel. The front and rear driven wheels are respectively mounted on the front and rear fixed support plates, and the driving wheel and the idler wheel are both mounted on the front fixed support plate. The synchronous belt is connected to the guide bearing seat in the support and guide mechanism.
[0008] The screen detection mechanism includes a linear module that moves left and right and a camera module fixed on the linear module. The linear module is mounted on a guide bearing seat in the support and guide mechanism through a module fixing plate and a module support frame and moves back and forth with it. The camera module is connected to an industrial control computer through a data cable, which allows the photos taken by the camera module to be transmitted to the industrial control computer for image data analysis.
[0009] Furthermore, the camera module includes a camera, a lens, and a light source, with the light source mounted around the camera lens.
[0010] The linear module is a linear motor.
[0011] A camera protective cover is provided on one side of the module support frame to shield the camera module when it is not in use, so as to prevent the environment from affecting it.
[0012] The automatic screen detection system is mounted on the frame of the vibrating sorting screen via front and rear fixed support plates. The vibrating screen frame and the automatic screen detection system are independently mounted on the frame of the overall instrument, and the two are independent of each other and do not affect each other's use.
[0013] When the automatic screen detection system of this utility model is working, the drive motor drives the synchronous shaft, the driving wheel, the synchronous belt and the front and rear driven wheels to rotate. The synchronous belt drives the guide bearing seat to move. The camera module in the screen detection mechanism set on the guide bearing seat moves back and forth accordingly, and moves left and right under the drive of the linear motor to detect and take pictures of the screen. The pictures are then transmitted to the industrial control computer for image data analysis in a timely manner.
[0014] The advantages of this invention compared to the prior art are: it can periodically detect whether the screen is loose and whether the mesh size changes, thereby ensuring that the screen specifications of the vibrating sorting screen meet the standard requirements and ensuring the screening accuracy of the vibrating sorting screen. Attached image description:
[0015] Figure 1 This is a top view of the present invention (showing the vibrating screen surface).
[0016] Figure 2 This is an axonometric view of the present invention (showing the vibrating screen surface).
[0017] Figure 3 This is a top view of the automatic screen detection system of this utility model (the vibrating screen surface is not shown).
[0018] Figure 4 This is an isometric view of the automatic screen detection system of this utility model (the vibrating screen surface is not shown).
[0019] Figure 5 This is a side view of the power transmission mechanism in this utility model.
[0020] Figure 6 This is an isometric view of the screen detection mechanism in this utility model.
[0021] Figure 1-6 Components: 1-Vibrating screen frame; 2-Industrial control computer; 3-Automatic screen detection mechanism; 3.1-Front fixed support plate; 3.2-Driving wheel; 3.3 Drive motor; 3.4-Synchronous shaft; 3.5-Protective cover; 3.6-Front driven wheel; 3.7-Idler wheel; 3.8-Synchronous belt; 3.9-Rear driven wheel; 3.10-Guide shaft; 3.11-Guide shaft fixing seat; 3.12-Rear fixed support plate; 3.13-Guide bearing seat; 3.14-Support frame; 3.15-Module fixing plate; 3.16-Linear module; 3.17-Camera fixing seat; 3.18-Camera; 3.19-Lens; 3.20-Light source. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings:
[0023] like Figure 1-6 As shown: An automatic screen detection system based on a vibrating sorting screen includes a support and guiding mechanism, a power transmission mechanism, a screen detection mechanism, and an industrial control computer.
[0024] The support and guide mechanism includes two guide shafts 3.10 arranged on the left and right, front and rear fixed support plates (3.1, 3.12), and two guide bearing seats 3.13. The two ends of the guide shafts are fixed to the front and rear fixed support plates respectively, and the guide bearing seats 3.12 are mounted on the guide shafts 3.10 and can slide back and forth.
[0025] The power transmission mechanism includes a synchronous shaft 3.4 driven by a drive motor 3.3, a driving wheel 3.2 mounted at both ends of the synchronous shaft, front and rear driven wheels (3.6, 3.9), an idler wheel 3.7, and a synchronous belt 3.8 that cooperates with each wheel. The front and rear driven wheels (3.6, 3.9) are respectively mounted on the front and rear fixed support plates (3.1, 3.12). The driving wheel 3.2 and the idler wheel 3.7 are both mounted on the front fixed support plate 3.1. The synchronous belt 3.8 is connected to the guide bearing seat 3.13 in the support and guide mechanism.
[0026] The screen detection mechanism includes a linear module 3.16 that moves left and right, and a camera module (including a camera 3.18, a lens 3.19, a light source 3.20, and a camera mounting base 3.17) fixed on the linear module. The linear module 3.16 is mounted on a guide bearing seat 3.13 in the support and guide mechanism via a module fixing plate 3.15 and a module support frame 3.14 and moves back and forth with it. The camera module is connected to the industrial control computer 2 via a data cable, and the photos taken by the camera module are transmitted to the industrial control computer for image data analysis.
[0027] Furthermore, the camera module includes a camera 3.18, a lens 3.19, a light source 3.20, and a camera mount 3.17. The light source is fitted around the camera lens and is a hollow ring light source, which is fixed to the lens by threads.
[0028] The linear module is a linear motor.
[0029] A camera protective cover 3.5 is provided at position 3.14 on one side of the module support frame to shield the camera module when it is not in use, so as to avoid environmental impact.
[0030] The automatic screen detection system is installed on the frame of the vibrating sorting screen via front and rear fixed support plates (3.1, 3.12). The vibrating screen frame and the automatic screen detection system are installed independently on the frame of the overall instrument. They are independent of each other and do not affect each other's use.
[0031] A more detailed explanation is as follows:
[0032] The driving wheel 3.2, drive motor 3.3, front driven wheel 3.6, and idler wheel 3.7 of the power transmission mechanism are all fixed on the front fixed support plate 3.1, and the rear driven wheel 3.9 is mounted and fixed on the rear fixed support plate 3.12. The guide shaft 3.10 is fixedly mounted on the front fixed support plate 3.1 and the rear fixed support plate 3.12 respectively through guide shaft fixing seats 3.11 at both ends. One end of the driving wheel 3.2 is connected to the drive motor 3.3, and the other end is connected to the other driving wheel through the synchronous shaft 3.4. That is, the motor drives the rotation of one driving wheel, which in turn drives the rotation of the other driving wheel synchronously through the synchronous shaft 3.4.
[0033] The driving pulley 3.2 is connected to the front driven pulley 3.6, the rear driven pulley 3.9 and the guide bearing seat 3.13 via a synchronous belt 3.8. The idler pulley 3.7 provides tension to prevent loosening and slippage.
[0034] The two sets of guide shafts 3.10 are fixed at both ends by guide shaft fixing seats 3.11, and the two sets of guide bearing seats 3.13 are installed on the guide shafts 3.10 and connected to the synchronous belts on both sides and the two sides of the detection mechanism support frame 3.14 respectively. The synchronous shafts 3.4 driven by the motor can realize the synchronous movement of the two sides of the support frame 3.14 and it is not easy to get stuck.
[0035] The linear module 3.16 and protective cover 3.5 in the automatic screen detection mechanism are both fixed on the support frame 3.14. The camera 3.18 is mounted on the linear module 3.16 via the camera mounting base 3.17. The camera moves when the linear module 3.16 is activated. The camera 3.18, lens 3.19, and light source 3.20 are connected in series to form a complete camera module. The linear module 3.16 is mounted on the support frame 3.14 via the module fixing plate 3.15. The movement of the support frame 3.14 provides forward and backward movement force for the camera module, while the linear module 3.16 provides left and right movement force to move the camera module to the middle of the screen or a designated position for taking pictures. The pictures and data are uploaded to the industrial control computer 2, where the system performs image data calculation and analysis.
[0036] The protective cover 3.5 is fixed to one side to protect the camera module. When the camera module is not in use, it is always covered by the protective cover to avoid the environment from affecting it. The camera module is usually moved into position for a short time before taking pictures, and it is also quickly reset after taking pictures.
Claims
1. A screen automatic detection system based on a vibrating sorting screen, characterized in that: This includes a support and guiding mechanism, a power transmission mechanism, a screen inspection mechanism, and an industrial control computer. The support and guide mechanism includes two guide shafts arranged on the left and right, front and rear fixed support plates, and two guide bearing seats. The two ends of the guide shafts are fixed to the front and rear fixed support plates respectively, and the guide bearing seats are mounted on the guide shafts and can slide back and forth. The power transmission mechanism includes a synchronous shaft driven by a drive motor, a driving wheel mounted at both ends of the synchronous shaft, front and rear driven wheels, an idler wheel, and a synchronous belt that cooperates with each wheel. The front and rear driven wheels are respectively mounted on the front and rear fixed support plates, and the driving wheel and the idler wheel are both mounted on the front fixed support plate. The synchronous belt is connected to the guide bearing seat in the support and guide mechanism. The screen detection mechanism includes a linear module that moves left and right and a camera module fixed on the linear module. The linear module is mounted on a guide bearing seat in the support and guide mechanism through a module fixing plate and a module support frame and moves back and forth with it. The camera module is connected to an industrial control computer through a data cable.
2. The screen automatic detection system based on a vibrating sorting screen according to claim 1, characterized in that: The camera module includes a camera, a lens, a light source, and a camera mount, with the light source mounted around the camera lens.
3. The screen automatic detection system based on a vibrating sorting screen according to claim 1, characterized in that: The linear module is a linear motor.
4. The screen automatic detection system based on a vibrating sorting screen according to claim 1, characterized in that: A camera protective cover is provided on one side of the module support frame to shield the camera module when it is not in use, so as to prevent the environment from affecting it.
5. The vibrating sorting screen based screen mesh automatic detection system of claim 1, wherein: The automatic screen detection system is mounted on the frame of the vibrating sorting screen via front and rear fixed support plates.