Online double-sided detection device in fabric conveying
By using an online double-sided inspection device to continuously inspect both sides of the fabric, and utilizing an electric roller for flattening and supplementary lighting, the problems of low efficiency and humidity influence of manual inspection are solved, achieving efficient and accurate fabric quality inspection.
Patent Information
- Application Number
- CN202511855350.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-10
- Publication Date
- 2026-02-24
AI Technical Summary
In existing technologies, the inspection of bed sheets and other fabrics in the hotel and other accommodation industries after replacement mainly relies on manual visual inspection, which results in high labor intensity and low efficiency. Furthermore, single-sided inspection requires secondary conveying, which affects efficiency, and fabric wrinkles affect accuracy when humidity is high.
An online double-sided inspection device was designed, comprising a frame, belt rollers, a transparent inspection plate, a camera assembly, and supplementary lighting. It enables continuous double-sided inspection of fabrics. The electric roller assembly unfolds the fabric, and the camera assembly takes pictures to identify stains, holes, etc. The light stand provides sufficient illumination, improving inspection accuracy and efficiency.
It achieves continuous and efficient online double-sided fabric inspection, improves inspection accuracy, reduces manual labor intensity and cost, and solves the inspection problem under the influence of humidity.
Smart Images

Figure CN121558733A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of fabric inspection technology, and particularly relates to an online double-sided inspection device for fabric conveying. Background Technology
[0002] Currently, in the hotel and other accommodation industries, a large number of bed sheets and other fabrics are changed daily. These sheets require bulk processing, including washing, steam ironing, and folding. To ensure fabric quality, inspection for stains, holes, burns, etc., is necessary before folding. Current inspection methods mostly involve:
[0003] 1. The manual visual observation method is labor-intensive, inefficient, labor-intensive, and costly.
[0004] 2. While single-sided inspection during fabric transport can reduce manual intervention, it requires additional steps of changing the fabric and secondary transport inspection, resulting in low work efficiency. Furthermore, fabrics with high humidity may wrinkle during transport, which can affect the accuracy of the inspection. Summary of the Invention
[0005] This invention provides an online double-sided inspection device for fabric conveying, in order to improve work efficiency and inspection accuracy.
[0006] To solve the above-mentioned technical problems, the technical solution of the present invention is: an online double-sided inspection device for fabric conveying, comprising a frame, a belt roller rotatably mounted on the frame, a plurality of annular retaining rings provided on the belt roller, a wheel frame provided on the frame above the belt roller, a plurality of electric roller assemblies elastically mounted on the wheel frame, and the electric roller assemblies being arranged between two adjacent annular retaining rings;
[0007] A discharge guide roller is rotatably mounted on the frame located downstream of the belt roller, and a transparent detection plate is provided on the frame located between the discharge guide roller and the belt roller;
[0008] The frame is also equipped with multiple camera components, which are distributed on both sides of the transparent detection plate with their lenses facing the transparent detection plate.
[0009] As an improvement, a connecting guide post is provided between the electric roller assembly and the wheel frame, and an elastic element is fitted on the connecting guide post to abut against the electric roller assembly and the wheel frame.
[0010] As a further improvement, a linear drive element is hinged to the frame, and a swing frame is hinged to the linear drive element, the swing frame being oscillatingly mounted on the frame;
[0011] The wheel frame is mounted on the swing frame.
[0012] As an improvement, the transparent detection plate is provided with connecting plates extending towards the discharge guide roller and the belt roller respectively, and the connecting plate connected to the belt roller is provided with a clearance groove to avoid the annular retaining ring.
[0013] As a further improvement, the frame is provided with two lamp holders, which are distributed on both sides of the transparent detection plate, and each lamp holder is provided with a supplementary light.
[0014] As a further improvement, the lamp holder, the transparent detection plate, and the support pole for mounting the camera assembly are all provided with adjustment plates at both ends. The adjustment plates are provided with arc-shaped adjustment grooves and mounting holes. Connectors pass through the arc-shaped adjustment grooves and the mounting holes, and the connectors are connected to the frame.
[0015] After adopting the above technical solution, the effect of the present invention is as follows:
[0016] The online double-sided inspection device in the fabric conveying process includes a frame, on which a belt roller is rotatably mounted. Multiple annular retaining rings are mounted on the belt roller. Above the belt roller, a wheel frame is mounted, on which multiple electric roller assemblies are flexibly mounted. These electric roller assemblies are arranged between adjacent annular retaining rings. Downstream of the belt roller, a discharge guide roller is rotatably mounted on the frame. Between the discharge guide roller and the belt roller, a transparent inspection plate is mounted on the frame. The frame also includes multiple camera assemblies, distributed on both sides of the transparent inspection plate with their lenses facing the transparent inspection plate. Based on the above structure, the online double-sided inspection device in the fabric conveying process transports the steam-ironed fabric towards the transparent inspection plate via a conveyor belt driven by belt rollers. Once on the transparent inspection plate, camera components distributed on both sides of the transparent inspection plate continuously photograph both sides of the fabric and determine whether there are stains, holes, burns, etc. During the above process, the fabric is rolled and flattened by the cooperation of an electric roller assembly elastically mounted on the wheel frame and the belt roller, so that the fabric delivered to the transparent inspection plate is flat.
[0017] In summary, the online double-sided inspection device used in fabric conveying enables online monitoring of both sides of the conveyed fabric, ensuring the continuity of fabric conveying operations and effectively improving fabric inspection efficiency. Furthermore, the rolling and flattening process before photographic inspection enhances the comprehensiveness and accuracy of the inspection, effectively solving the problem of wrinkles in the fabric during conveying that affect inspection accuracy.
[0018] Because a connecting guide post is provided between the electric roller assembly and the wheel frame, and an elastic element is fitted on the connecting guide post to abut against the electric roller assembly and the wheel frame, the electric roller assembly continuously applies pressure to the fabric through the expansion and contraction of the elastic element during operation. The structure is simple, easy to assemble, and has a good effect on flattening the fabric.
[0019] Because a linear drive element is hinged to the frame, and a swing frame is hinged to the linear drive element, the swing frame is mounted on the frame; the wheel frame is mounted on the swing frame, so that during operation, the linear drive element drives the swing frame to swing according to the different thicknesses of the fabric, thereby adjusting the distance between the electric roller assembly and the belt roller, which greatly improves the versatility of the device.
[0020] Because the transparent inspection plate is equipped with connecting plates extending towards the discharge guide roller and the belt roller respectively, and the connecting plate connected to the belt roller is equipped with a clearance groove to avoid the annular retaining ring, the seamless connection of the connecting plates ensures that the fabric is smoothly guided from the conveyor belt driven by the belt roller to the transparent inspection plate and the discharge guide roller in sequence, and then conveyed downstream. This ensures the continuity of the assembly line conveying and inspection operation, laying the foundation for improving work efficiency.
[0021] The frame is equipped with two light stands, which are located on both sides of the transparent inspection plate. Each light stand is equipped with a supplementary light, which illuminates the upper and lower sides of the transparent inspection plate to ensure sufficient brightness for the camera assembly to take pictures and improve the picture quality.
[0022] Because the light stand, transparent inspection plate, and camera assembly mounting pole are all equipped with adjustment plates at both ends, and the adjustment plates have arc-shaped adjustment grooves and mounting holes, with connectors passing through the arc-shaped adjustment grooves and mounting holes, and the connectors are connected to the frame, the installation angles of the light stand, transparent inspection plate, and mounting pole can be adjusted through the arc-shaped adjustment grooves to ensure the compatibility of the supplementary light, transparent inspection plate, and camera assembly, which is beneficial to ensuring inspection accuracy. Attached Figure Description
[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0024] Figure 1 This is a schematic diagram of the structure of the present invention;
[0025] Figure 2 yes Figure 1 A structural diagram from another angle (excluding part of the rack);
[0026] Figure 3 yes Figure 1 A sectional view;
[0027] Figure 4 yes Figure 1 Enlarged view of A in the middle;
[0028] Figure 5 yes Figure 2 Enlarged view of B in the middle;
[0029] Figure 6 yes Figure 3 Enlarged view of C
[0030] Among them, 1-frame; 101-linear drive element; 102-frame rod; 2-belt roller; 201-ring retaining ring; 3-wheel frame; 301-swing frame; 302-elastic element; 4-electric roller assembly; 5-discharge guide roller; 6-transparent detection plate; 601-connecting plate; 602-avoidance groove; 7-camera assembly; 8-lamp holder; 801-fill light; 9-adjustment plate; 901-arc adjustment groove; 902-mounting hole. Detailed Implementation
[0031] The present invention will be further described in detail below through specific embodiments.
[0032] like Figures 1 to 3 As shown, an online double-sided inspection device for fabric conveying includes a frame 1, on which a belt roller 2 is rotatably mounted. A conveyor belt (not shown) for conveying fabrics such as bed sheets is wound around the belt roller 2. The belt roller 2 is provided with multiple annular retaining rings 201. A wheel frame 3 is provided on the frame 1 located above the belt roller 2 (including directly above and diagonally above). When the wheel frame 3 is arranged diagonally above the belt roller 2, it is located downstream of the belt roller 2. Multiple electric roller assemblies 4 are elastically mounted on the wheel frame 3 and are arranged between two adjacent annular retaining rings 201. A discharge guide roller 5 is rotatably mounted on the frame 1 located downstream of the belt roller 2. A transparent inspection plate 6 (such as glass) is provided on the frame 1 located between the discharge guide roller 5 and the belt roller 2. The frame 1 is also provided with multiple camera assemblies 7, which are distributed on the upper and lower sides of the transparent inspection plate 6 and have their lenses facing the transparent inspection plate 6.
[0033] Preferably, a linear drive element 101 (such as a cylinder, hydraulic cylinder, etc.) is hinged to the frame 1, and a swing frame 301 is hinged to the drive end of the linear drive element 101. The swing frame 301 is oscillatingly mounted on the frame 1, and the wheel frame 3 is mounted on the swing frame 301. The elastic mounting structure of the electric roller assembly 4 on the wheel frame 3 is as follows (see...). Figure 4 The electric roller assembly 4 and the wheel frame 3 are provided with multiple connecting guide posts (not shown in the figure). The connecting guide posts are fitted with elastic elements 302 (such as compression springs) that abut against the electric roller assembly 4 and the wheel frame 3.
[0034] In this design, the transparent detection plate 6 is provided with connecting plates 601 extending towards the discharge guide roller 5 and the belt roller 2 respectively. The connecting plate 601 connected to the belt roller 2 is provided with a clearance groove 602 for avoiding the annular retaining ring 201 (see Figure 4 Since the transparent detection plate 6 is made of glass, it is inconvenient to connect it with the discharge guide roller 5 and the belt roller 2. Therefore, the two ends of the two connecting plates 601 are connected, and a space for placing the transparent detection plate 6 is formed in the middle of the two connecting plates 601. At the same time, a support plate for supporting the transparent detection plate 6 is set on the side of the two connecting plates 601 that are close to each other (see...). Figure 6 ).
[0035] The frame 1 is equipped with two lamp holders 8, which are distributed on the upper and lower sides of the transparent detection plate 6. Each lamp holder 8 is equipped with a supplementary light 801 that illuminates the transparent detection plate 6.
[0036] like Figure 5 As shown, the lamp holder 8, the transparent detection plate 6, and the support pole 102 for mounting the camera assembly 7 are all equipped with adjustment plates 9 at both ends. The adjustment plates 9 are provided with arc-shaped adjustment grooves 901 and mounting holes 902. Connecting parts (such as connecting bolts, not shown in the figure) pass through the arc-shaped adjustment grooves 901 and mounting holes 902. The connecting parts are connected to the frame 1.
[0037] The above-described embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any modifications and alterations made to the technical solutions of the present invention without departing from the spirit of the present invention shall fall within the protection scope defined by the claims of the present invention.
Claims
1. An online double-sided inspection device for fabric conveying, comprising a frame, wherein belt rollers are rotatably mounted on the frame, characterized in that: The belt roller is provided with multiple annular retaining rings, and the frame above the belt roller is provided with a wheel frame. Multiple electric roller assemblies are elastically mounted on the wheel frame, and the electric roller assemblies are arranged between two adjacent annular retaining rings. A discharge guide roller is rotatably mounted on the frame located downstream of the belt roller, and a transparent detection plate is provided on the frame located between the discharge guide roller and the belt roller; The frame is also equipped with multiple camera components, which are distributed on both sides of the transparent detection plate with their lenses facing the transparent detection plate.
2. The online double-sided inspection device for fabric conveying as described in claim 1, characterized in that: A connecting guide post is provided between the electric roller assembly and the wheel frame, and an elastic element is fitted on the connecting guide post to abut against the electric roller assembly and the wheel frame.
3. The online double-sided inspection device for fabric conveying as described in claim 2, characterized in that: A linear drive element is hinged to the frame, and a swing frame is hinged to the linear drive element. The swing frame is oscillatingly mounted on the frame. The wheel frame is mounted on the swing frame.
4. The online double-sided inspection device for fabric conveying as described in claim 1, characterized in that: The transparent detection plate is provided with connecting plates extending towards the discharge guide roller and the belt roller respectively, and the connecting plate connected to the belt roller is provided with a clearance groove to avoid the annular retaining ring.
5. An online double-sided inspection device for fabric conveying as described in any one of claims 1 to 4, characterized in that: The frame is equipped with two light holders, which are distributed on both sides of the transparent detection plate, and each light holder is equipped with a supplementary light.
6. The online double-sided inspection device for fabric conveying as described in claim 5, characterized in that: The lamp holder, the transparent detection plate, and the support pole for mounting the camera assembly are all equipped with adjustment plates at both ends. The adjustment plates are provided with arc-shaped adjustment grooves and mounting holes. Connectors pass through the arc-shaped adjustment grooves and the mounting holes, and the connectors are connected to the frame.