Non-woven fabric detection equipment
By installing cameras and light sources in nonwoven fabric inspection equipment, the problems of low efficiency and missed detection in nonwoven fabric surface quality inspection have been solved, achieving efficient and accurate automated inspection.
Patent Information
- Application Number
- CN202420670568.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-03
AI Technical Summary
Existing methods for nonwoven fabric surface quality inspection are inefficient and prone to missed detections.
Cameras are installed inside the upper and lower camera covers, distributed along the width of the nonwoven fabric. Combined with a light source and an encoder, automated detection of the nonwoven fabric surface is achieved.
It improves detection efficiency, reduces missed detections, and can clearly identify defects on the surface of nonwoven fabrics.
Smart Images
Figure CN222212714U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of non-woven fabrics, in particular to a non-woven fabric detection device. Background Art
[0002] Non-woven fabrics, also known as non-woven fabrics, are made of directional or random fibers. They are a new generation of environmentally friendly materials with the characteristics of moisture-proof, breathable, flexible, lightweight, non-combustible, easy to decompose, non-toxic, non-irritating, and recyclable. They are mostly made of polypropylene as raw material, and are produced by a continuous one-step process of high-temperature melting, spinning, laying, and hot pressing and winding. They are called cloth because they have the appearance and certain properties of cloth. After the production of non-woven fabrics is completed, the quality of their surface needs to be tested. At present, the surface quality of non-woven fabrics is generally tested manually, which is inefficient and prone to missed inspections. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a non-woven fabric detection device in view of the above-mentioned technical deficiencies.
[0004] To solve the above technical problems, the technical solution adopted by the utility model is: a non-woven fabric detection equipment, including a frame and a controller, one side of the lower part of the frame is rotatably connected to two unwinding rollers, the other side of the lower part of the frame is rotatably connected to two winding rollers, one of the winding rollers is transmission-connected to a motor, the top of the frame is rotatably connected to two upper support rollers, an upper rubber-coated roller is arranged below between the two upper support rollers, a lower camera cover is arranged below the upper rubber-coated roller, the lower part of the frame is rotatably connected to a lower rubber-coated roller, a lower support roller is arranged below the lower rubber-coated roller on the side close to the upper support roller, an upper camera cover is arranged above the lower rubber-coated roller, and a plurality of cameras distributed along the width direction of the non-woven fabric are arranged in the upper camera cover and the lower camera cover.
[0005] To further optimize the technical solution, an upper light source is provided on the side below the upper rubber-coated roller, and a lower light source is provided on the side above the lower rubber-coated roller.
[0006] To further optimize the technical solution, a bracket is further provided on the frame, an encoder is provided on the bracket, a rubber-coated wheel is provided on the rotating shaft of the encoder, and the outer circumference of the rubber-coated wheel contacts the outer circumference of the lower rubber-coated roller or the upper rubber-coated roller.
[0007] To further optimize the technical solution, a first transition roller and a second transition roller are provided on the side of the unwinding roller close to the winding roller, and a third transition roller and a fourth transition roller are provided on the side of the winding roller close to the unwinding roller.
[0008] Compared with the prior art, the utility model has the following advantages: 1. An upper camera cover is arranged above the lower rubber-coated roller, and a lower camera cover is arranged below the upper rubber-coated roller. Multiple cameras are arranged in the upper camera cover and the lower camera cover. The cameras can take pictures of the non-woven fabric. The pictures taken are transmitted to the controller for analysis to determine whether there are defects on the surface of the non-woven fabric. The efficiency is high and it is not easy to miss the inspection problem; 2. The lower rubber-coated roller and the upper rubber-coated roller make the non-woven fabric bend outward, and the defects can be magnified and thus more easily detected. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 The figure is a schematic diagram of the structure of a non-woven fabric testing device.
[0010] Figure 2 for Figure 1 Magnified view of point I in the middle.
[0011] Figure 3 It is a cross-sectional view of a non-woven fabric testing device.
[0012] In the figure: 1. frame; 2. winding roller; 3. unwinding roller; 4. upper camera cover; 5. upper support roller; 6. upper rubber-coated roller; 7. upper light source; 8. lower camera cover; 9. lower light source; 10. lower rubber-coated roller; 11. lower support roller; 12. bracket; 13. rubber-coated wheel; 14. first transition roller; 15. second transition roller; 16. third transition roller; 17. fourth transition roller. DETAILED DESCRIPTION
[0013] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.
[0014] Specific implementation method: Combination Figure 1-3As shown, a non-woven fabric detection device includes a frame 1 and a controller (not shown in the figure), one side of the lower part of the frame 1 is rotatably connected to two unwinding rollers 3, the two unwinding rollers 3 are horizontally arranged and the axes of the two are parallel to each other, the other side of the lower part of the frame 1 is rotatably connected to two winding rollers 2, the two winding rollers 2 are horizontally arranged and the axes of the two are parallel to each other, one of the winding rollers 2 is connected to the motor transmission, the motor is arranged on one side of the frame 1, the top of the frame 1 is rotatably connected to two upper support rollers 5, the two upper support rollers 5 are connected to each other An upper rubber-coated roller 6 is arranged below the upper rubber-coated roller 6, a lower camera cover 8 is arranged below the upper rubber-coated roller 6, a lower rubber-coated roller 10 is rotatably connected to the lower part of the frame 1, a lower support roller 11 is arranged below the lower rubber-coated roller 10 and close to the upper support roller 5, an upper camera cover 4 is arranged above the lower rubber-coated roller 10, a plurality of cameras distributed along the width direction of the non-woven fabric are arranged in the upper camera cover 4 and the lower camera cover 8, the detection ranges of adjacent cameras slightly overlap, and the bottom of the upper camera cover 4 and the top of the lower camera cover 8 are made of transparent materials. The camera can take pictures of the non-woven fabric, and the pictures taken are transmitted to the controller for analysis to determine whether the surface of the non-woven fabric has defects. The image analysis and recognition technology (or visual detection technology) in the existing technology is already very mature, so it is more efficient and less likely to miss detection.
[0015] Furthermore, an upper light source 7 is provided on the side below the upper rubber-coated roller 6, and a lower light source 9 is provided on the side above the lower rubber-coated roller 10. The upper light source 7 and the lower light source 9 extend along the width direction of the non-woven fabric, so that the camera can take clearer pictures.
[0016] Furthermore, a bracket 12 is provided on the frame 1, and an encoder (not shown in the figure) is provided on the bracket 12. The encoder is electrically connected to the controller, and a rubber-coated wheel 13 is provided on the rotating shaft of the encoder. The outer circumference of the rubber-coated wheel 13 contacts the outer circumference of the lower rubber-coated roller 10 or the upper rubber-coated roller 6. When defects appear on the surface of the non-woven fabric, the controller can record the position of the defect on the length of the non-woven fabric.
[0017] Furthermore, the unwinding roller 3 is provided with a first transition roller 14 and a second transition roller 15 on the side close to the winding roller 2, and the winding roller 2 is provided with a third transition roller 16 and a fourth transition roller 17 on the side close to the unwinding roller 3. The positions of the four transition rollers can be determined according to actual conditions, so that the non-woven fabric can be retracted and released more smoothly, and the released non-woven fabric will not contact other parts of the equipment and the non-woven fabric roll.
[0018] When using, combine Figure 3As shown, the non-woven fabric roll to be inspected is placed on two unwinding rollers 3, and the non-woven fabric thereon passes downward between the two unwinding rollers 3, then bypasses from under the first transition roller 14 and the second transition roller 15, then extends upward and bypasses from above the lower rubberized roller 10, then bypasses from under the lower support roller 11 downward, then extends upward and bypasses from above an upper support roller 5, then bypasses from under the upper rubberized roller 6 downward and then bypasses from above another upper support roller 5 upward, then bypasses from under the third transition roller 16 and the fourth transition roller 17 downward and passes upward between the two winding rollers 2, and is wound around the inspected non-woven fabric roll (the non-woven fabric roll above the winding roller 2). During inspection, the winding roller 2 rotates to drive the inspected non-woven fabric roll to rotate, so that the non-woven fabric on the non-woven fabric roll to be inspected is gradually wound around the inspected non-woven fabric roll. The lower rubber-coated roller 10 and the upper rubber-coated roller 6 make the non-woven fabric bend outward, and defects (such as transverse or oblique cracks, etc.) can be magnified so that they can be more easily detected. The camera in the upper camera cover 4 continuously takes pictures of the non-woven fabric above the lower rubber-coated roller 10, and the camera in the lower camera cover 8 continuously takes pictures of the non-woven fabric below the upper rubber-coated roller 6. Both sides of the non-woven fabric are tested. The center of the non-woven fabric roll is a paper tube. At the beginning of the test, an iron rod can be inserted into the paper tube of the tested non-woven fabric roll to increase the weight, so as to increase the friction between the non-woven fabric on it and the winding roller 2, so that it can be driven to rotate by the winding roller 2. When the test is completed, the iron rod can be pulled out of the paper tube. It is convenient to put the non-woven fabric roll to be tested on the two unwinding rollers 3, and it is also convenient to remove the non-woven fabric roll that has been tested from the two winding rollers 2.
[0019] It should be understood that the above is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present application should be included in the protection scope of the present application.
Claims
1. A nonwoven fabric detection device, comprising a frame (1) and a controller, characterized in that: One side of the lower part of the frame (1) is rotatably connected to two unwinding rollers (3), and the other side of the lower part of the frame (1) is rotatably connected to two winding rollers (2), one of which is connected to a motor in a transmission manner. The top of the frame (1) is rotatably connected to two upper support rollers (5), an upper rubber-coated roller (6) is arranged below the two upper support rollers (5), and a lower camera cover (8) is arranged below the upper rubber-coated roller (6). The lower part of the frame (1) is rotatably connected to a lower rubber-coated roller (10), and a lower support roller (11) is arranged below the lower rubber-coated roller (10) and close to the upper support roller (5). An upper camera cover (4) is arranged above the lower rubber-coated roller (10), and a plurality of cameras distributed along the width direction of the non-woven fabric are arranged in the upper camera cover (4) and the lower camera cover (8).
2. A nonwoven fabric detection device according to claim 1, characterized in that: An upper light source (7) is also provided on a side below the upper rubber-coated roller (6), and a lower light source (9) is also provided on a side above the lower rubber-coated roller (10).
3. The nonwoven fabric detection device according to claim 1, characterized in that: The frame (1) is further provided with a bracket (12), the bracket (12) is provided with an encoder, a rubber-coated wheel (13) is provided on the rotating shaft of the encoder, and the outer circumference of the rubber-coated wheel (13) is in contact with the outer circumference of the lower rubber-coated roller (10) or the upper rubber-coated roller (6).
4. A nonwoven fabric detection device according to any one of claims 1 to 3, characterized in that: A first transition roller (14) and a second transition roller (15) are arranged on the side of the unwinding roller (3) close to the winding roller (2), and a third transition roller (16) and a fourth transition roller (17) are arranged on the side of the winding roller (2) close to the unwinding roller (3).