Non-woven fabric production surface flaw detection device

Abstract

The utility model relates to the technical field of non-woven fabric production equipment, in particular to a non-woven fabric production surface flaw detection device which comprises a rack, a cleaning mechanism and a detection mechanism are arranged on the rack; the cleaning mechanism comprises a cleaning rod, the cleaning rod is rotationally connected to the rack, the cleaning rod is of a hollow structure, a cleaning groove is formed in the side face of the cleaning rod, and an exhaust pipe is rotationally connected to the tail end of the cleaning rod. The hollow cleaning rod structure can be matched with an air pump, impurities on the surface of the non-woven fabric are cleaned through the cleaning groove in the side face of the cleaning rod, meanwhile, the groove wall of the cleaning groove can form a structure similar to a brush, and the surface of the non-woven fabric is cleaned; and the multiple sets of cleaning rod structures can synchronously clean the non-woven fabric and suck air to absorb impurities, so that the stability of the non-woven fabric is improved, and then the cleaning effect on the surface of the non-woven fabric is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of nonwoven fabric production equipment, specifically a nonwoven fabric production surface defect detection device. Background Technology

[0002] Nonwoven fabric, also known as non-woven cloth, needle-punched cotton, needle-punched nonwoven fabric, etc., can be used in various industries, such as sound insulation, heat insulation, heating elements, masks, clothing, medical applications, and filling materials. During the production of nonwoven fabric, surface defect detection is required. However, existing nonwoven fabric surface defect detection devices may encounter solid impurities such as broken fibers or dust particles on the nonwoven fabric surface, affecting detection accuracy. Currently, to solve this problem, a cleaning structure is incorporated into the detection equipment to remove solid impurities from the nonwoven fabric surface.

[0003] For example, the utility model patent with publication number CN219326945U discloses an integrated device for detecting and winding nonwoven fabric defects. In this solution, a rotating motor drives a cleaning roller to rotate. Two cleaning rollers clean the front and back of the nonwoven fabric to brush off dust or lint from both sides. The suction pipe picks up the brushed dust and lint through the suction shell, thereby improving the cleanliness of the nonwoven fabric surface and improving the quality of the nonwoven fabric.

[0004] However, there are still some shortcomings in the existing technology. For example, since both sides of the non-woven fabric need to be cleaned by the cleaning device, the non-woven fabric will be suspended between the cleaning structures. During the cleaning process, the cleaning structure will vibrate the non-woven fabric, and the non-woven fabric will move away from the brush when it vibrates, resulting in poor cleaning effect on the non-woven fabric. Utility Model Content

[0005] The purpose of this utility model is to provide a surface defect detection device for nonwoven fabric production, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A surface defect detection device for nonwoven fabric production includes a frame;

[0008] The frame is equipped with a cleaning mechanism and a testing mechanism;

[0009] The cleaning mechanism includes a cleaning rod, which is rotatably connected to the frame. The cleaning rod has a hollow structure, a cleaning groove is provided on the side of the cleaning rod, and an exhaust pipe is rotatably connected to the end of the cleaning rod.

[0010] Preferably, a support sleeve is fitted on the outer side of the cleaning rod, and a strip-shaped hole is opened on one side of the support sleeve, with the cleaning rod disposed inside the strip-shaped hole.

[0011] Preferably, an air pump is fixedly connected to the top of the frame, the air pump inlet is fixedly connected to the exhaust pipe, a collection cylinder is fixedly connected to the side of the frame, a filter screen is connected inside the collection cylinder, and the exhaust pipe is fixedly connected to both ends of the collection cylinder.

[0012] Preferably, the testing mechanism includes a testing box, which is fixedly connected to the top of the frame, and the support sleeve is fixedly connected to both ends of the testing box. A testing groove is provided at the bottom of the testing box, and the testing groove passes through the bottom of the testing box.

[0013] Preferably, guide rollers are rotatably connected to the frame, and the guide rollers are respectively connected to the side and the middle of the frame.

[0014] Preferably, a detection lamp is fixedly connected to the frame, the detection lamp is fixedly connected to the middle of the inside of the frame, and a photoelectric sensor is fixedly connected inside the detection box.

[0015] Preferably, a marking assembly is fixedly connected to the bottom of the machine frame. The marking assembly includes a cylinder, which is fixedly connected to the machine frame. A marking head is fixedly connected to the end of the cylinder's output shaft, and a storage cylinder is fixedly connected to the side of the cylinder. One end of the marking head is immersed in the storage cylinder.

[0016] By employing the above technical solution, this utility model provides a surface defect detection device for nonwoven fabric production, which has at least the following beneficial effects:

[0017] (1) The hollow cleaning rod structure of this utility model can be used in conjunction with an air pump to clean impurities on the surface of non-woven fabric through the cleaning groove on the side of the cleaning rod. At the same time, the wall of the cleaning groove can form a brush-like structure to clean the surface of non-woven fabric. Multiple sets of cleaning rod structures can clean the non-woven fabric simultaneously and absorb impurities by air extraction, thereby improving the stability of the non-woven fabric and thus improving the cleaning effect on the surface of the non-woven fabric.

[0018] (2) This utility model can perform repeated testing on non-woven fabrics by setting multiple sets of detection structures, thereby improving the accuracy of non-woven fabric testing, reducing the probability of missed detection, and thus improving the quality of non-woven fabric production. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0020] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the internal structure of the cleaning mechanism of this utility model.

[0024] In the diagram: 1. Frame; 2. Cleaning mechanism; 21. Cleaning rod; 22. Cleaning tank; 23. Exhaust pipe; 24. Support sleeve; 25. Strip hole; 26. Air pump; 27. Collection cylinder; 28. Filter screen; 3. Detection mechanism; 31. Detection box; 32. Detection tank; 33. Guide roller; 34. Detection lamp; 35. Photoelectric sensor; 36. Marking assembly; 361. Cylinder; 362. Marking head; 363. Storage cylinder. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] A surface defect detection device for nonwoven fabric production, such as Figures 1-4 As shown, it includes a frame 1; the frame 1 is equipped with a cleaning mechanism 2, which can treat the surface of the non-woven fabric, collect the dust or fiber debris attached to the surface, and reduce interference with the detection mechanism 3.

[0028] Specifically, the cleaning mechanism 2 includes a cleaning rod 21, which is rotatably connected to the frame 1. The rotatably connected cleaning rod 21 can clean the surface of the non-woven fabric. At the same time, rotation can reduce the friction between the cleaning rod 21 and the non-woven fabric, reducing surface defects caused by wear. An exhaust pipe 23 is rotatably connected to the end of the cleaning rod 21. The cleaning rod 21 has a hollow structure, and a cleaning groove 22 is opened on the side of the cleaning rod 21. The structure of the exhaust pipe 23 can cooperate with the hollow structure of the cleaning rod 21, and draw air from the outside of the cleaning rod 21 into the cleaning rod 21 through the cleaning groove 22. At the same time, because the cleaning groove 22 is relatively narrow, the air flow speed around the cleaning groove 22 is relatively fast, thereby effectively drawing impurities from the surface of the non-woven fabric into the interior.

[0029] A support sleeve 24 is fitted on the outside of the cleaning rod 21. A strip hole 25 is opened on one side of the support sleeve 24. The cleaning rod 21 is placed inside the strip hole 25. The support sleeve 24 can support the cleaning rod 21. At the same time, the support sleeve 24 has a semi-enclosed structure, which wraps and covers the middle and upper part of the cleaning rod 21, and only exposes the bottom end of the cleaning groove 22 on the outside of the cleaning rod 21.

[0030] An air pump 26 is fixedly connected to the top of the frame 1. The air inlet of the air pump 26 is fixedly connected to the exhaust pipe 23. The air pump 26 provides power to the cleaning rod 21, drawing air from the cleaning rod 21 and its outer side towards the air pump 26. A collection cylinder 27 is fixedly connected to the side of the frame 1. A filter screen 28 is connected inside the collection cylinder 27. The exhaust pipe 23 is fixedly connected to both ends of the collection cylinder 27. The collection cylinder 27 can collect impurities, and the filter screen 28 inside the collection cylinder 27 can filter the flowing air, removing fibrous impurities or dust from the air.

[0031] Example 2

[0032] like Figures 1-3 As shown, based on Embodiment 1, the frame 1 is equipped with a detection mechanism 3. The detection mechanism 3 can detect the non-woven fabric and mark the defects on the surface of the non-woven fabric, making it convenient to process the defective areas.

[0033] In this embodiment, the testing mechanism 3 includes a testing box 31, which is fixedly connected to the top of the frame 1. A support sleeve 24 is fixedly connected to both ends of the testing box 31. A testing groove 32 is provided at the bottom of the testing box 31, which passes through the bottom of the testing box 31. The support sleeve 24 fixed at the bottom of the testing box 31 can use the negative pressure suction generated by the cleaning rod 21 during the cleaning process to position the non-woven fabric, so that the non-woven fabric is attached to the bottom of the testing box 31, thereby reducing the interference of ambient light on the testing results and improving the testing accuracy. The structure of the testing groove 32 can facilitate the installation of the testing structure. At the same time, multiple testing grooves 32 can form a testing channel and the sides of the testing channel can be blocked by the box wall of the testing box 31.

[0034] Guide rollers 33 are rotatably connected to the frame 1. The guide rollers 33 are connected to the side and the middle of the frame 1 respectively. The structure of the guide rollers 33 can guide the non-woven fabric so that the non-woven fabric can move along the set path.

[0035] A detection lamp 34 is fixedly connected to the frame 1. The detection lamp 34 is fixedly connected to the middle of the inside of the frame 1. A photoelectric sensor 35 is fixedly connected inside the detection box 31. The structure of the detection lamp 34 can provide a strip light source and cooperate with the array of photoelectric sensors 35 to detect defects on the surface of the nonwoven fabric. The defects on the surface of the nonwoven fabric are detected and identified by the change in the intensity of light transmitted through the nonwoven fabric.

[0036] A marking component 36 is fixedly connected to the bottom of the machine frame 1. The marking component 36 can mark the area near the defect location of the nonwoven fabric, thereby facilitating the operator to quickly identify the defect location and improving the efficiency of subsequent defect processing. The marking component 36 includes a cylinder 361, which is fixedly connected to the machine frame 1. A marking head 362 is fixedly connected to the end of the output shaft of the cylinder 361. A storage cylinder 363 is fixedly connected to the side of the cylinder 361. One end of the marking head 362 is immersed in the storage cylinder 363. The structure of the cylinder 361 can drive the marking head 362, allowing the marking head 362 to move up and down. At the same time, the storage cylinder 363 can store marking dye, and through immersion and capillary action, the marking head 362 is kept in a dye-coated state.

[0037] In use, the nonwoven fabric surface defect detection device of this utility model moves the produced nonwoven fabric from one end of the frame 1 to the other. The cylinder 361 continuously operates, drawing air out of the cleaning rod 21. The cleaning rod 21 then uses negative pressure to draw the nonwoven fabric to both ends of the detection box 31 through the side cleaning groove 22, covering the bottom of the detection box 31. Simultaneously, the flowing air draws dust or impurities from the surface of the nonwoven fabric into the collection cylinder 27. The filter 28 inside the collection cylinder 27 filters these impurities, causing them to fall and be collected inside. Subsequently, the continuously operating detection lamp 34 emits detection light to illuminate the nonwoven fabric. The penetrating detection light shines into the detection groove 32, and the photoelectric sensor 35 detects the light intensity. When the detected light intensity changes, it indicates the location of a defect in the nonwoven fabric. The nonwoven fabric moves in a V-shaped trajectory under the guidance of the guide roller 33. The detection lights 34, distributed at different locations, provide detection for single-layer, double-layer, and triple-layer nonwoven fabrics, respectively. Multiple detections can improve the detection accuracy of surface defects in the nonwoven fabric. After multiple detections, the cylinder 361 is activated and drives the marking head 362 to move closer to the nonwoven fabric and mark the defect location.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A nonwoven fabric production surface flaw detection device comprising a frame (1), characterized in that: The frame (1) is equipped with a cleaning mechanism (2) and a testing mechanism (3); The cleaning mechanism (2) includes a cleaning rod (21), which is rotatably connected to the frame (1). The cleaning rod (21) has a hollow structure, and a cleaning groove (22) is provided on the side of the cleaning rod (21). An exhaust pipe (23) is rotatably connected to the end of the cleaning rod (21).

2. The apparatus for detecting surface defects of a nonwoven fabric according to claim 1, wherein: The cleaning rod (21) is fitted with a support sleeve (24) on the outside. A strip hole (25) is opened on one side of the support sleeve (24), and the cleaning rod (21) is placed inside the strip hole (25).

3. The apparatus for detecting surface defects of a nonwoven fabric according to claim 1, wherein: An air pump (26) is fixedly connected to the top of the frame (1). The air inlet of the air pump (26) is fixedly connected to the exhaust pipe (23). A collection cylinder (27) is fixedly connected to the side of the frame (1). A filter screen (28) is connected inside the collection cylinder (27). The exhaust pipe (23) is fixedly connected to both ends of the collection cylinder (27).

4. The apparatus for detecting surface defects of a nonwoven fabric according to claim 2, wherein: The testing mechanism (3) includes a testing box (31), which is fixedly connected to the top of the frame (1). The support sleeve (24) is fixedly connected to both ends of the testing box (31). A testing groove (32) is provided at the bottom of the testing box (31), and the testing groove (32) passes through the bottom of the testing box (31).

5. The apparatus for detecting surface defects of a nonwoven fabric according to claim 1, wherein: Guide rollers (33) are rotatably connected to the frame (1), and the guide rollers (33) are respectively connected to the side and the middle of the frame (1).

6. The apparatus for detecting surface defects of a nonwoven fabric according to claim 4, wherein: A detection lamp (34) is fixedly connected to the frame (1), and the detection lamp (34) is fixedly connected in the middle of the inside of the frame (1). A photoelectric sensor (35) is fixedly connected inside the detection box (31).

7. The nonwoven fabric production surface defect detection device according to claim 1, characterized in that: A marking assembly (36) is fixedly connected to the bottom of the frame (1). The marking assembly (36) includes a cylinder (361), which is fixedly connected to the frame (1). A marking head (362) is fixedly connected to the end of the output shaft of the cylinder (361). A storage cylinder (363) is fixedly connected to the side of the cylinder (361). One end of the marking head (362) is immersed in the inside of the storage cylinder (363).

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