A nonwoven seam detection apparatus
The nonwoven fabric weld inspection equipment, which combines a suction belt and a vision inspection device, solves the problem of manual reliance in nonwoven fabric weld inspection, and achieves efficient and accurate automated inspection and sorting, reducing operating costs and quality risks.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SANHEHUI ELECTRONIC & MECHANICAL EQUIP (SHANGHAI) CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-06-26
AI Technical Summary
Current nonwoven fabric weld inspection mainly relies on manual methods, resulting in high operating costs, quality risks, and the risk of mixing defective products. There is a lack of efficient and accurate online inspection equipment.
The detection system combines a suction belt, a shadowless light box, and a vision inspection device, along with a servo motor-driven rejection and stacking mechanism, to achieve automated online detection and sorting.
It improves detection accuracy and efficiency, reduces manual intervention, lowers the risk of defective products leaving the market, and provides reliable quality assurance.
Smart Images

Figure CN224405810U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automated testing technology, specifically to a non-woven fabric weld seam testing device. Background Technology
[0002] In the nonwoven fabric production industry, weld quality inspection is a crucial step in ensuring product performance and safety. Currently, factories generally use manual methods to inspect nonwoven fabric welds to meet production requirements and improve product quality. However, this method has several problems and shortcomings. First, due to the high production speed of nonwoven fabrics and the large variety of products requiring inspection, manual inspection requires a significant investment of human resources, increasing the company's operating costs. Second, manual inspection carries certain quality risks, as human error can easily lead to missed inspections of defective products, thus affecting the overall product pass rate. Furthermore, during manual sorting, operators may mistakenly place defective products into the good product area due to operational errors, creating a risk of material mixing and further increasing the difficulty of quality management. Existing technology lacks equipment capable of efficiently and accurately performing online inspection of nonwoven fabric welds, failing to meet the automation and high efficiency demands of modern production lines. Therefore, developing a nonwoven fabric weld inspection device that can interface with existing production equipment, achieve online inspection, and automatically process good and defective products has become an urgent technical problem to be solved. This equipment can not only reduce manual intervention and improve production efficiency, but also effectively reduce the risk of defective products flowing out, providing more reliable quality assurance for nonwoven fabric production. Utility Model Content
[0003] The purpose of this invention is to provide a nonwoven fabric weld inspection device to address the aforementioned shortcomings in the prior art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a non-woven fabric weld inspection device, comprising a conveying system, an inspection system, a rejection mechanism, a stacking mechanism, and a human-machine interaction system. The conveying system includes a suction belt, a conveyor belt support, and a base. The suction belt is mounted on the conveyor belt support and fixed to the base. An adjustable conveyor belt is also mounted on the conveyor belt support. The inspection system includes a shadowless light box and a visual inspection device. The shadowless light box is installed above the conveying system, and the visual inspection device is located below the shadowless light box and connected to the control system via an output shaft. The rejection mechanism includes a flip plate and a defective product box. The flip plate is driven by a servo motor and is located at the end of the conveying system. The stacking mechanism includes a good product box and an automatic lifting device. The automatic lifting device controls the height of the lifting platform via a servo motor. The human-machine interaction system includes a touch screen and a display.
[0005] Furthermore, the surface of the suction belt is provided with uniformly distributed micropores to adsorb non-woven fabric products.
[0006] Furthermore, the suction belt's adsorption function prevents the non-woven fabric product from shifting or tilting due to static electricity through airflow.
[0007] Furthermore, the light source of the shadowless light box adopts a multi-angle distribution design to cover the weld area.
[0008] Furthermore, the light source design of the shadowless light box avoids shadow interference to ensure that the image of the weld area is clearly visible.
[0009] Furthermore, the lifting platform in the stacking mechanism descends a fixed height each time it receives a good product, and when a set quantity is reached, it uses a flip plate to transfer the good products into the second good product box.
[0010] Furthermore, the human-computer interaction system allows users to input detection parameters via a touchscreen and display detection results and equipment operation data in real time on a monitor.
[0011] In the above technical solution, this utility model provides a non-woven fabric weld inspection device, which has the following beneficial effects:
[0012] First, by combining the shadowless light box and the visual inspection device, high-precision inspection of non-woven fabric welds is achieved, significantly improving the reliability of the inspection.
[0013] Secondly, the design of the suction belt effectively solves the instability problem caused by static electricity in non-woven fabric during transportation, ensuring accurate positioning of the product during inspection and stacking.
[0014] Third, the fast flip-plate design in the rejection mechanism can complete the rejection of defective products in a short time, improving the equipment's response speed and work efficiency.
[0015] Fourth, the stacking mechanism controls the height of the lifting platform through a servo motor, realizing automatic counting and stacking of good products, reducing the need for manual intervention.
[0016] Fifth, the introduction of the human-machine interaction system makes the operation of the equipment more convenient. Operators can intuitively understand the status of the equipment and perform corresponding operations through the touch screen and monitor.
[0017] In summary, through the implementation of the above-mentioned technical solution, this utility model solves many problems existing in the current nonwoven fabric weld inspection technology, and has high practicality and promotion value. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0019] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;
[0020] Figure 2 Provided for the embodiments of this utility model Figure 1 Schematic diagram of the structure at point A;
[0021] Figure 3 Provided for the embodiments of this utility model Figure 2 A partial structural diagram;
[0022] Figure 4 Provided for the embodiments of this utility model Figure 3 Schematic diagram of the structure at point B;
[0023] Figure 5 Provided for the embodiments of this utility model Figure 3 A schematic diagram of the structure at point C.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. Shadowless light box; 2. Suction belt; 3. Conveyor belt support; 4. Flip plate; 5. Pressing roller; 6. Defective product box; 7. Adjustable conveyor belt; 8. Excellent product box; 9. Touch screen; 10. Display; 11. Conveyor belt body; 12. Output shaft; 13. Base. Detailed Implementation
[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0027] This utility model relates to a specific embodiment of a nonwoven fabric weld seam inspection device, in conjunction with the attached... Figure 1 To be continued Figure 5 The technical solution of this utility model is described in detail below. The core function of this equipment is to realize automated online detection of non-woven fabric welds, rejection of defective products, counting of good products, and stacking operations. The following will comprehensively describe the composition, operating principle, and specific implementation process of the equipment in conjunction with the reference numerals of the various components in the accompanying drawings.
[0028] like Figure 1As shown, the overall structure of the nonwoven fabric weld inspection equipment of this utility model includes a conveying system, an inspection system, a rejection mechanism, a stacking mechanism, and a human-machine interaction system. These parts work together to form a complete automated production line docking solution. The conveying system, as the basic part of the equipment, has a core component called the suction belt 2. The suction belt 2 is mounted on the conveyor belt support 3 and fixed by the base 13. The design of the suction belt 2 is optimized for the characteristics of nonwoven fabric, utilizing airflow adsorption to solve the displacement problem caused by static electricity during transportation. Specifically, the surface of the suction belt 2 is provided with uniformly distributed micropores. When the product is placed on the conveyor belt body 11, the suction device is activated and generates negative pressure through the micropores, thereby firmly adsorbing the nonwoven fabric onto the surface of the conveyor belt. This design ensures that the product remains stable during transportation, avoiding skewing or accumulation, and providing reliable assurance for subsequent inspection and sorting. In addition, an adjustable conveyor belt 7 is also provided on the conveyor belt support 3, which can be flexibly adjusted according to the width of the nonwoven fabric product to adapt to the needs of different specifications.
[0029] The inspection system, located above the conveyor system, consists of a shadowless light box 1 and a vision inspection device. The shadowless light box 1 is mounted on top of the conveyor belt support 3, and its light source design is specially optimized to effectively eliminate shadow interference, ensuring clear visibility of the weld area. The vision inspection device, located below the shadowless light box 1, acquires weld quality information through real-time scanning and image processing of the weld area. The vision inspection device transmits the collected data to the control system via the output shaft 12, which determines product qualification based on preset inspection standards. The entire inspection process is highly automated, reducing errors caused by human intervention. Notably, the light source of the shadowless light box 1 employs a multi-angle distribution design to ensure uniform light coverage of the weld area, thereby improving inspection accuracy.
[0030] The rejection mechanism includes flip-board 4 and defective product box 6, such as Figure 3 As shown, the flap 4 is located at the end of the conveyor system, and its opening and closing action is driven by a servo motor. When the control system determines that a product is defective, the servo motor drives the flap 4 to open, guiding the defective product to the defective product bin 6. Subsequently, the flap 4 quickly closes to ensure the normal transport of the next product. This rapid flap mechanism design not only occupies less space but also completes the rejection of defective products in a short time, improving the equipment's response speed and work efficiency. The defective product bin 6 is located below the flap 4 and is used to collect rejected defective products. To prevent the risk of mixing, a physical isolation design is adopted between the defective product bin 6 and the good product bin 8 to ensure that defective products do not mistakenly enter the good product area.
[0031] The stacking mechanism includes a good product box 8 and an automatic lifting device, such as... Figure 4As shown, the good product bin 8 is located on the other side of the conveyor system, with a servo motor-controlled lifting platform at its bottom. When good products flow into the good product bin 8, the lifting platform descends a fixed height for each good product received to meet stacking requirements. When the set quantity is reached, the equipment uses another flap to guide the good products into the second good product bin 8, simultaneously alerting the operator with sound and light to remove the stacked products. This stacking mechanism design achieves automatic counting and orderly stacking of good products, reducing the need for manual intervention. The servo motor has high control precision, accurately adjusting the position of the lifting platform according to preset height parameters, thus ensuring the stability of the stacking process. Furthermore, the internal space of the good product bin 8 is optimized to ensure that the products will not tilt or collapse during stacking.
[0032] The human-computer interaction system includes a touchscreen 9 and a display 10, such as Figure 5 As shown, the touchscreen 9 is located on the equipment's control panel and is used to input detection parameters and monitor the equipment's operating status. Operators can use the touchscreen 9 to set detection standards, adjust conveyor belt speed, and view equipment operation logs. The display 10 shows the detection results and equipment operating data in real time, allowing operators to keep abreast of production progress. This human-machine interface provides an intuitive operating method through its software interface, simplifying the equipment's usage process. Data transmission between the touchscreen 9 and the display 10 is achieved through an internal communication module, ensuring the real-time nature and accuracy of information transmission.
[0033] The specific operation process of the equipment is as follows: S1 After the non-woven fabric welding is completed, the product enters the conveyor system via the suction belt 2. The suction belt 2 activates its adsorption function to firmly fix the product on the surface of the conveyor belt, ensuring that the product remains stable during transportation. S2 When the product is transported to the area below the visual inspection device, the shadowless light box 1 provides a uniform light source, and the visual inspection device scans the weld area and obtains quality information. S3 The control system determines whether the product is qualified based on the scanning results. If the product is qualified, it continues to be transported along the conveyor belt to the stacking mechanism; if the product is unqualified, the rejection mechanism is triggered. S4 The servo motor in the rejection mechanism drives the flap 4 to open, guiding the defective product to the defective product box 6. After the rejection action is completed, the flap 4 closes quickly to ensure the normal transportation of the next product. S5 After the qualified product flows into the good product box 8, the lifting platform descends a fixed height according to the preset height parameters to meet the stacking requirements. When the stacking reaches the set quantity, the equipment guides the good product into the second good product box 8 through another flap, and at the same time, the operator is prompted by sound and light to remove the stacked product.
[0034] Throughout the operation, the human-machine interface system played a crucial role. Operators could adjust detection parameters and equipment operating status at any time via touchscreen 9, while monitor 10 provided real-time feedback on equipment operating data and detection results. This design made equipment operation more convenient and improved production controllability. Furthermore, all equipment actions were uniformly coordinated by the control system, ensuring smooth and error-free operation between all components.
[0035] In summary, this utility model, through the implementation of the above-mentioned technical solutions, solves many problems existing in current nonwoven fabric weld inspection technologies. The design of the suction belt 2 solves the instability problem caused by static electricity during nonwoven fabric transportation; the combination of the shadowless light box 1 and the visual inspection device achieves high-precision weld inspection; the rapid flipping mechanism improves the efficiency of defective product rejection; the stacking mechanism realizes automatic counting and stacking of good products; and the human-machine interaction system simplifies the operation process of the equipment. These technical features together constitute the core competitiveness of this utility model, enabling the equipment to exhibit excellent performance and reliability in practical applications.
[0036] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A nonwoven fabric weld detection apparatus comprising a conveying system, a detection system, a rejection mechanism, a stacking mechanism, and a human-machine interface system, characterized in that, The conveying system includes a suction belt (2), a conveyor belt support (3) and a base (13). The suction belt (2) is set on the conveyor belt support (3) and fixed by the base (13). An adjustable conveyor belt (7) is also provided on the conveyor belt support (3). The detection system includes a shadowless light box (1) and a visual inspection device. The shadowless light box (1) is installed above the conveying system. The visual inspection device is located below the shadowless light box (1) and connected to the control system through an output shaft (12). The rejection mechanism includes a flip plate (4) and a defective product box (6). The flip plate (4) is driven by a servo motor and is set at the end of the conveying system. The stacking mechanism includes a good product box (8) and an automatic lifting device. The automatic lifting device controls the height of the lifting platform through a servo motor. The human-machine interaction system includes a touch screen (9) and a display (10).
2. The nonwoven seam detection apparatus of claim 1, wherein, The suction belt (2) has uniformly distributed micropores on its surface to adsorb non-woven fabric products.
3. The nonwoven fabric weld inspection device according to claim 2, characterized in that, The suction belt (2) has an adsorption function that prevents the non-woven fabric product from shifting or tilting due to static electricity through airflow.
4. The nonwoven fabric weld inspection device according to claim 1, characterized in that, The light source of the shadowless light box (1) adopts a multi-angle distribution design to cover the weld area.
5. The nonwoven fabric weld inspection device according to claim 4, characterized in that, The light source design of the shadowless light box (1) avoids shadow interference to ensure that the image of the weld area is clearly visible.
6. The nonwoven fabric weld inspection device according to claim 1, characterized in that, The lifting platform in the stacking mechanism descends a fixed height each time it receives a good product, and when the set quantity is reached, it uses a flip plate (4) to transfer the good product into the second good product box (8).
7. The nonwoven fabric weld inspection device according to claim 1, characterized in that, The human-computer interaction system inputs detection parameters through a touch screen (9) and displays the detection results and equipment operation data in real time through a display (10).