A device for detecting spunlace nonwoven products

Abstract

The utility model discloses a kind of detection devices of spunlace nonwoven product, including rewinder, detection component and indicating component, rewinder includes rack, guide component and two winding components, two winding components are respectively arranged at the both ends of rack, and standing platform is equipped between one winding component and rack, guide component is arranged in rack, and located between two winding components, detection component is arranged in the end of rack far from standing platform, indicating component is arranged in the end of rack close to standing platform.The utility model is a kind of detection devices of spunlace nonwoven product, detection component can detect camera cooperation first light source to the photographing of nonwoven fabric, then the flaw on nonwoven fabric is identified by the algorithm built-in in control panel, to improve the efficiency of nonwoven fabric flaw detection;After detecting the flaw on nonwoven fabric, the flaw area of nonwoven fabric is lighted by second light source and third light source in indicating component, to facilitate positioning the flaw on nonwoven fabric.

Description

Technical Field

[0001] This utility model relates to the field of nonwoven product testing, and in particular to a testing device for spunlace nonwoven products. Background Technology

[0002] Nonwoven fabric is a type of non-woven material whose production process does not require traditional spinning, weaving, or knitting processes. Instead, it is a sheet material made by directly bonding fibers together using physical, chemical, or thermodynamic methods. It combines some properties of textiles, plastics, and paper, and is widely used in medical, hygiene, industrial, and agricultural fields.

[0003] Non-woven fabrics are further processed to produce non-woven products such as masks and wet wipes. Before production, the raw material, non-woven fabric, needs to be inspected for defects. Current inspection methods mainly include manual inspection and equipment inspection. Manual inspection is labor-intensive for workers, inefficient, and prone to missed defects. While existing equipment can detect defects on the non-woven fabric, it cannot pinpoint the location of defects, still requiring manual confirmation, thus maintaining low overall inspection efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a testing device for spunlace nonwoven products.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: This utility model discloses a testing device for spunlace nonwoven products, comprising a rewinder, a testing component, and an indicating component. The rewinder includes a frame, a guide component, and two winding components, which are respectively located at both ends of the frame. A standing platform is provided between one of the winding components and the frame. The guide component is located inside the frame and between the two winding components. The testing component is located at the end of the frame away from the standing platform to test the spunlace nonwoven fabric passing through the testing component. The indicating component is located at the end of the frame closer to the standing platform to indicate detected defects.

[0006] As a preferred technical solution of this utility model, the detection component includes two sets of detection units, which are arranged at intervals within the frame and are both located on the side away from the standing platform. Each detection unit includes a first light source and at least one detection camera. The first light source is located at the bottom of the frame and at one end away from the standing platform between the two winding assemblies, with its light rays pointing upwards. At least one detection camera is located in the frame and is positioned above the first light source.

[0007] As a preferred embodiment of the present invention, the winding assembly includes a winding roller and two drive boxes. The two drive boxes are spaced apart on both sides of one end of the frame. Each drive box has a vertical slide rail at its top. The winding roller is rotatably disposed between the two drive boxes, and its two ends are rotatably connected to the sliding seats in the slide rail.

[0008] As a preferred technical solution of this utility model, the winding assembly further includes a drive motor and two drive rollers. The two drive rollers are rotatable in the middle of two drive boxes and are horizontally spaced apart, with the gap between them located directly below the winding rollers. The drive motor is mounted on one of the drive boxes, and its output shaft is connected to a gear set inside the drive box. One end of the drive roller is connected to the gear set inside the drive box.

[0009] As a preferred technical solution of this utility model, the guiding assembly includes multiple first guide rollers, which are spaced apart in the frame and located between the two winding assemblies to allow the spunlace nonwoven fabric to be tested to pass through with a certain tension.

[0010] As a preferred technical solution of this utility model, the standing platform includes a support platform, a staircase and two second guide rollers. The support platform is located at the bottom between the frame and one of the winding components. A staircase is provided on one side of the support platform. The two second guide rollers are horizontally and spaced apart below the support platform, and both ends of the two guide rollers are rotatably connected to the inner wall of the support platform to allow the spunlace nonwoven fabric to be tested to pass through with a certain tension.

[0011] As a preferred technical solution of this utility model, the indicating component includes a second light source and multiple sets of third light sources. The second light source is located at one end of the frame near the standing platform, and its light is directed toward the spunlace nonwoven fabric. The multiple sets of third light sources are spaced apart at the top of the frame near the standing platform, and their light all intersects with the light from the second light source on the spunlace nonwoven fabric.

[0012] As a preferred technical solution of this utility model, it also includes a rotating arm, one end of which is connected to the top of the frame 1, and the other end of which is provided with a control panel, which extends above the standing platform.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The detection component can detect the nonwoven fabric by taking pictures with the camera and the first light source, and then identify the defects on the nonwoven fabric through the algorithm built into the control panel, thereby improving the efficiency of nonwoven fabric defect detection. After detecting defects on the nonwoven fabric, the second and third light sources in the indicator component illuminate the defective area of ​​the nonwoven fabric, thereby facilitating the location of defects on the nonwoven fabric. The detection component and the indicator component are set in the rewinding machine, which can detect defects while the nonwoven fabric is being rewound, thereby improving the production efficiency of nonwoven products and reducing the footprint of the equipment. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is one of the overall structural schematic diagrams of this utility model; Figure 2 This is the second schematic diagram of the overall structure of this utility model; Figure 3 This is the front view of this utility model; Figure 4 This is a top view of the present invention; Figure 5 This is a cross-sectional structural schematic diagram of the present invention; In the diagram: 1. Frame; 2. First guide roller; 3. Rewinding assembly; 31. Rewinding roller; 32. Slide rail; 33. Drive motor; 34. Drive roller; 35. Drive box; 4. Detection assembly; 41. First light source; 42. Detection camera; 5. Indicator assembly; 51. Second light source; 52. Third light source; 6. Standing platform; 61. Support platform; 62. Staircase; 63. Second guide roller; 7. Rotating arm; 8. Control panel. Detailed Implementation

[0015] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0016] In the attached diagram, all identical reference numerals refer to the same components.

[0017] Example 1: like Figure 1-5As shown, this utility model provides a testing device for spunlace nonwoven products, including a rewinder, a testing component 4, and an indicator component 5. The rewinder includes a frame 1, a guide component, and two winding components 3. The two winding components 3 are respectively located at both ends of the frame 1. A standing platform 6 is provided between one of the winding components 3 and the frame 1. The guide component is located inside the frame 1 and between the two winding components 3. The testing component 4 is located at the end of the frame 1 away from the standing platform 6 to test the spunlace nonwoven fabric passing through the testing component 4. The indicator component 5 is located at the end of the frame 1 close to the standing platform 6 to indicate the detected defects.

[0018] In this embodiment, the nonwoven fabric roll is set on a winding assembly 3. The end of the nonwoven fabric passes under the winding assembly and the standing platform 6 and is connected to another winding assembly 3. The two winding assemblies 3 cooperate to rewind the nonwoven fabric. During the winding process, the nonwoven fabric passes through the detection assembly 4 and the indicator assembly 5 in sequence. The detection assembly 4 detects the defects on the nonwoven fabric. After detecting the defects, the indicator assembly 5 indicates the defect area, thereby making it easier to find the defects on the nonwoven fabric. The nonwoven fabric is wound from the winding assembly 3 at the end away from the standing assembly 6 to the winding assembly 3 at the end closer to the standing assembly 6, thus completing the winding.

[0019] Furthermore, the winding assembly 3 includes a winding roller 31 and two drive boxes 35. The two drive boxes 35 are spaced apart on both sides of one end of the frame 1. Each drive box 35 has a vertical slide rail 32 at its top. The winding roller 31 is rotatably disposed between the two drive boxes 35, and its two ends are rotatably connected to the sliding seat in the slide rail 32.

[0020] In this embodiment, both the take-up roller 31 and the drive box 35 adopt existing technologies. The take-up roller 31 can expand and hold the core of the nonwoven fabric roll. The drive box 35 can be equipped with a gear set. The take-up roller 31 can move vertically on the slide rail 32 to adapt to the change in the diameter of the nonwoven fabric roll on the take-up roller 31. Specifically, as the diameter of the nonwoven fabric roll increases, the take-up roller 31 moves upward on the slide rail 32. As the diameter of the nonwoven fabric roll decreases, the take-up roller 31 moves downward on the slide rail 32. The dotted line around the take-up roller 31 is the outline of the nonwoven fabric roll.

[0021] Furthermore, the winding assembly 3 also includes a drive motor 33 and two drive rollers 34. The two drive rollers 34 are rotatable in the middle of two drive boxes 35 and are horizontally spaced apart, with the gap between them located directly below the winding roller 31. The drive motor 33 is mounted on one drive box 35, and its output shaft is connected to a gear set inside the drive box 35. One end of the drive roller 34 is connected to the gear set inside the drive box 35.

[0022] In this embodiment, the output shaft of the drive motor 33 is meshed with the input end of the gear set in the corresponding drive box 35, and one end of the drive roller 34 is meshed with the output end of the gear set in the corresponding gear box 35. Thus, the drive motor 33 drives the drive roller 34 to rotate, and the surfaces of the two rotating drive rollers 34 come into contact with the nonwoven fabric roll on the winding roller 31, thereby driving the nonwoven fabric roll and the winding roller 31 to rotate, thereby achieving the purpose of winding the nonwoven fabric.

[0023] Furthermore, the guiding assembly includes multiple first guide rollers 2, which are spaced apart within the frame 1 and located between two winding assemblies 3, to allow the spunlace nonwoven fabric to be tested to pass through while maintaining a certain tension.

[0024] In this embodiment, multiple first guide rollers 2 are spaced apart inside the frame 1 as needed and are rotatably connected to the frame 1 to maintain the tension of the nonwoven fabric during movement and optimize the movement path of the nonwoven fabric. One end of the nonwoven fabric on a winding assembly 3 away from the standing assembly 6 passes along the path formed by the multiple first guide rollers 2 and connects to the core on the winding roller 31 of another winding assembly 3 after passing the standing platform 6, thereby performing winding. The line connecting the first guide rollers 2 forms the conveying path for the nonwoven fabric.

[0025] Furthermore, the standing platform 6 includes a support platform 61, a staircase 62, and two second guide rollers 63. The support platform 61 is located at the bottom between the frame 1 and a winding assembly 3. A staircase 62 is provided on one side of the support platform 61. The two second guide rollers 63 are horizontally and spaced apart below the support platform 61, and both ends of the rollers are rotatably connected to the inner wall of the support platform 61 to allow the spunlace nonwoven fabric to be tested to pass through with a certain tension.

[0026] In this embodiment, the support platform 61 is used for workers to stand on, which makes it convenient for workers to check and judge the defects on the non-woven fabric, and the stairs 62 make it convenient for workers to climb onto the support platform 61. Two second guide rollers 63 below the support platform 61 are rotatably connected to the support platform 61, so that the nonwoven fabric can pass under the support platform 61 and avoid contact between the nonwoven fabric and the support platform 61.

[0027] Furthermore, the indicator component 5 includes a second light source 51 and multiple sets of third light sources 52. The second light source 51 is located inside the frame 1 near one end of the standing platform 6, and its light is directed toward the spunlace nonwoven fabric. The multiple sets of third light sources 52 are spaced apart on the top of the frame 1 near one end of the standing platform 6, and their light all intersects with the light of the second light source 51 on the spunlace nonwoven fabric.

[0028] In this embodiment, the second light source 51 is an LED white supplementary light source. The width direction of the non-woven fabric is divided into multiple areas, and each group of third light sources 52 corresponds to a group of areas. When the detection component 4 detects a defect in a certain area of ​​the non-woven fabric, the corresponding second light source 52 lights up, making it convenient for workers to check the defect. The dotted line at component 5 indicates the approximate direction of the light.

[0029] In addition, each of the second light source 51 and the third light source 52 is equipped with a light source controller using existing technology for control.

[0030] Furthermore, it also includes a rotating arm 7, one end of which is connected to the top of the frame 1, and the other end of which is provided with a control panel 8, which extends above the standing platform 6.

[0031] In this embodiment, the two ends of the rotating arm 7 are respectively connected to the top of the frame 1 and the control panel 8 through a rotating connection with a certain damping effect, so that the control panel 8 can be adjusted in position. The control panel 8 can be an all-in-one PC or a monitor connected to an external PC host. The PC has built-in software and algorithms required for detecting defects in non-woven fabrics, as well as a control system that can control this detection device.

[0032] Example 2: like Figure 5 As shown, the detection assembly includes two sets of detection units 4, which are arranged at intervals within the frame 1 and are both located on the side away from the standing platform 6. Each detection unit 4 includes a first light source 41 and at least one detection camera 42. The first light source 41 is located at the bottom of the frame 1 and at one end away from the standing platform 6 between the two winding components 3, with its light rays facing upwards. The at least one detection camera 42 is located in the frame 1 and is located above the first light source 41.

[0033] In this embodiment, the first light source 41 is an LED white cold light focusing light source, and the detection camera 42 is a 4K color line scan camera. At least one detection camera 42 is set according to the specifications of the non-woven fabric. In this embodiment, each detection unit 4 has 7 detection cameras 42 arranged in a straight line in the horizontal direction. The detection camera 42 has a horizontal resolution of 3104, a vertical line frequency of 34.6 kHz, a magnification β of 0.021, a single camera field of view of 350 mm, a pixel resolution of 0.113 mm / pixel, a lens focal length of 8 mm, and a working distance of 590 mm.

[0034] When the non-woven fabric passes above the first light source 41, the non-woven fabric is photographed by the detection camera 42, and the non-woven fabric is detected by the image feature analysis technology to determine whether the non-woven fabric has defects. The dotted line at detection component 4 indicates the approximate direction of the light, which can be adjusted according to actual usage requirements.

[0035] like Figure 5 As shown, the nonwoven fabric forms an S-shaped path at the two detection units 4 along the first guide roller 2 set inside the frame 1; Specifically, the nonwoven fabric first passes through the first detection component 4, where the first light source 41 of the first detection component 4 faces vertically upwards, and the detection camera 42 is set at a suitable distance above the first light source 41. The nonwoven fabric is then detected by the detection unit 4, which detects the front side (front side facing vertically upwards). Then, the nonwoven fabric changes its path and moves vertically upward by a distance (greater than the distance required for the installation of the first light source 41) before moving horizontally towards the first detection component 4 until it is close to the first detection component, thereby realizing the flipping of the nonwoven fabric (the reverse side is vertically upward). The first light source 41 of the second detection component 4 is located between the two horizontal paths formed by the nonwoven fabric, and its light is vertically upward. The detection camera 42 is set at a suitable distance above the first light source 41. The nonwoven fabric is detected by the detection unit 4 to detect the reverse side of the nonwoven fabric (the reverse side is vertically upward). Next, the nonwoven fabric changes its path vertically upward (preferably moving to the top of the frame 1) and then moves horizontally away from the detection unit 4 to the indicator component 5.

[0036] In addition, each first light source 41 is equipped with a light source controller using existing technology for control.

[0037] Example 3: The detection assembly includes a set of detection units 4, which can be used when detecting thinner nonwoven fabrics (which have better light transmission).

[0038] This invention relates to an inspection device for spunlace nonwoven products. The inspection component uses a camera and a first light source to photograph the nonwoven fabric, and then uses an algorithm built into the control panel to identify defects on the nonwoven fabric, thereby improving the efficiency of defect detection. After detecting defects, the second and third light sources in the indicator component illuminate the defective area of ​​the nonwoven fabric, facilitating the location of the defects. The inspection component and the indicator component are installed inside the rewinding machine, enabling defect detection while the nonwoven fabric is being rewound, thereby improving the production efficiency of nonwoven products and reducing the equipment's footprint.

[0039] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A testing device for spunlace nonwoven products, comprising a rewinder, a testing component, and an indicating component (5), wherein the rewinder comprises a frame (1), a guiding component, and two winding components (3), the two winding components (3) being respectively disposed at both ends of the frame (1), a standing platform (6) being provided between one of the winding components (3) and the frame (1), and the guiding component being disposed within the frame (1) and located between the two winding components (3), characterized in that, The detection component is located at the end of the frame (1) away from the standing platform (6) to detect the spunlace nonwoven fabric passing through the detection component. The indicator component (5) is located at the end of the frame (1) close to the standing platform (6) to indicate the detected defects.

2. The device for detecting a spunlace nonwoven product according to claim 1, wherein The detection assembly includes two sets of detection units (4), which are arranged at intervals within the frame (1) and are both located on the side away from the standing platform (6). Each detection unit (4) includes a first light source (41) and a detection camera (42). The first light source (41) is located at the bottom of the frame (1) and at one end away from the standing platform (6) between the two winding assemblies (3), with its light facing upward. At least one detection camera (42) is located in the frame (1) and is located above the first light source (41).

3. The device for detecting a spunlace nonwoven product according to claim 1, wherein The winding assembly (3) includes a winding roller (31) and two drive boxes (35). The two drive boxes (35) are spaced apart on both sides of one end of the frame (1). Each drive box (35) has a vertical slide rail (32) at its top. The winding roller (31) is rotatably disposed between the two drive boxes (35), and its two ends are rotatably connected to the sliding seat in the slide rail (32).

4. The detection device for spunlace nonwoven products according to claim 3, characterized in that, The winding assembly (3) also includes a drive motor (33) and two drive rollers (34). The two drive rollers (34) are rotatable in the middle of the two drive boxes (35) and are horizontally spaced apart. The gap between them is located directly below the winding roller (31). The drive motor (33) is mounted on one of the drive boxes (35) and its output shaft is connected to the gear set inside the drive box (35). One end of the drive roller (34) is connected to the gear set inside the drive box (35).

5. The device for detecting a spunlace nonwoven product according to claim 1, wherein The guiding assembly includes multiple first guide rollers (2), which are spaced apart within the frame (1) and located between the two winding assemblies (3) to allow the spunlace nonwoven fabric to be tested to pass through with a certain tension.

6. The device for detecting a spunlace nonwoven product according to claim 1, wherein The standing platform (6) includes a support platform (61), a staircase (62), and two second guide rollers (63). The support platform (61) is located at the bottom between the frame (1) and a winding assembly (3). A staircase (62) is provided on one side of the support platform (61). The two second guide rollers (63) are horizontally and spaced apart below the support platform (61), and both ends of the two rollers are rotatably connected to the inner wall of the support platform (61) to allow the spunlace nonwoven fabric to be tested to pass through with a certain tension.

7. The device for detecting a spunlace nonwoven product according to claim 1, wherein The indicating component (5) includes a second light source (51) and multiple sets of third light sources (52). The second light source (51) is located inside the frame (1) near one end of the standing platform (6), and its light is directed toward the spunlace nonwoven fabric. The multiple sets of third light sources (52) are spaced apart on the top of the frame (1) near one end of the standing platform (6), and their light all intersects with the light of the second light source (51) on the spunlace nonwoven fabric.

8. A device for detecting a spunlace nonwoven product according to any one of claims 1 to 7, characterized in that, It also includes a rotating arm (7), one end of which is connected to the top of the frame (1), and the other end of which is provided with a control panel (8), which extends above the standing platform (6).

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