Nonwoven fabric transmission tensile detection device and detection method

Abstract

The application relates to a non-woven fabric transmission tensile detection device, which comprises a mounting plate, a plurality of supporting legs arranged at the bottom of the mounting plate, a feeding roller rotatably arranged on the top of the mounting plate through a support, a collecting roller rotatably arranged on the top of the mounting plate and away from the feeding roller, a tensile detection mechanism arranged on the top of the mounting plate and between the feeding roller and the collecting roller, and a transmission detection mechanism arranged on the tensile detection mechanism. The application can solve the following problems: the intermittent fixation of the non-woven fabric is realized through the cooperation of the triangular fixing block and the triangular groove; the intermittent lifting of the non-woven fabric by the stretching column is realized through the cooperation of the driven disc and the driving disc, so that the tensile detection of the non-woven fabric is realized; the incomplete gear drives the push rod to move, the push rod moves to drive the stretching column to move, so that the non-woven fabric is stretched in different degrees, and the detection quality is improved.

Description

Technical Field

[0001] This invention relates to the field of fabric testing technology, and in particular to a nonwoven fabric transmission tensile strength testing device and testing method. Background Technology

[0002] Nonwoven fabrics possess advantages such as high strength, good breathability, and soft texture, making them an important raw material for the production of medical textiles such as masks and wet / dry wipes. Quality inspection is crucial in the actual manufacturing process of nonwoven fabrics. Currently, the mainstream nonwoven fabric material inspection process relies heavily on manual labor, resulting in high labor costs and low automation, hindering efficiency improvements.

[0003] However, nonwoven fabric transmission tensile strength testing devices often encounter some problems in daily use. With the development of technology, technicians in related fields have also made a lot of optimizations to nonwoven fabric transmission tensile strength testing devices to solve some of the problems that different consumer groups are concerned about. In order to make more accurate comparisons, Chinese patent with publication number CN219326945U discloses a nonwoven fabric defect detection and winding integrated device, specifically involving the field of fabric detection technology. In use, the nonwoven fabric first passes around the bottom of the feed roller, and then passes around the top of the two feed rollers. At this time, the nonwoven fabric is located below the flat panel light. After the light is turned on, the defect points on the back of the fabric can be displayed by utilizing the principle of light transmission, which facilitates the CCD camera to capture the defect points. The CCD camera transmits the image to the detection computer for comparison to determine whether there are defects in the fabric; thereby improving the efficiency of fabric quality detection and avoiding missed detections.

[0004] However, the aforementioned nonwoven fabric defect detection and winding integrated device still has the following shortcomings in actual use:

[0005] 1. The above-mentioned non-woven fabric defect detection and winding integrated device can reveal the defects on the back of the fabric by turning on the flat panel light and using the principle of light transmission. The defects are captured by the CCD camera. However, in this process, only transmission detection of non-woven fabric can be performed and tensile testing cannot be performed at the same time. If tensile testing can be performed at the same time as transmission detection, the detection efficiency of non-woven fabric can be greatly improved.

[0006] 2. The above-mentioned non-woven fabric defect detection and winding integrated device uses a rotary motor to drive the cleaning rollers to rotate. The two cleaning rollers clean the front and back of the non-woven fabric to remove dust or lint from both sides of the non-woven fabric. However, when performing transmission detection, dust or lint on the surface of the non-woven fabric will affect the detection results, thereby affecting the detection quality.

[0007] Therefore, based on the above-stated viewpoints, there is still room for improvement in existing nonwoven fabric transmission tensile strength testing devices and methods. Summary of the Invention

[0008] To address the aforementioned problems, this invention provides a nonwoven fabric transmission tensile strength testing device, comprising a mounting plate with multiple support legs at the four corners of the bottom of the mounting plate. The device is characterized in that: a feeding roller is rotatably mounted on the top of the mounting plate via a bracket; a receiving roller is rotatably mounted on the side of the top of the mounting plate away from the feeding roller; a tensile strength testing mechanism is mounted on the top of the mounting plate and located between the feeding roller and the receiving roller; and a transmission testing mechanism is mounted on the tensile strength testing mechanism.

[0009] The tensile strength testing mechanism includes a drive shaft that is rotatably and crosswise arranged on the top of the mounting plate and located between the feeding roller and the receiving roller. A transmission roller is sleeved on the drive shaft, and a fixing unit is provided on the transmission roller. Support columns are symmetrically arranged on the top of the mounting plate and between the transmission rollers, and an arc-shaped slide is provided on the top of the support columns.

[0010] Preferably, the tensile testing mechanism further includes a rotating shaft that is rotatably and slidably disposed between the arc-shaped slides, and the rotating shaft extends outward through the arc-shaped slides. Limiting plates are symmetrically disposed at both ends of the rotating shaft, and a plurality of tensile columns are uniformly disposed along the circumference of the rotating shaft. A driving unit is disposed at one end of the rotating shaft.

[0011] Preferably, the fixing unit includes a drive motor mounted on one side of one of the transmission shafts through a motor housing. A reciprocating lead screw is rotatably mounted on the side of the transmission shaft away from the drive motor. A square block is fitted on the reciprocating lead screw to cooperate with it. A strip plate is provided on the side of the square block away from the reciprocating lead screw. Multiple triangular fixing blocks are provided at the bottom of the strip plate. Multiple triangular grooves that cooperate with the triangular fixing blocks are opened on the transmission roller.

[0012] Preferably, the driving unit includes a driven disk sleeved on one end of a rotating shaft, a rotating shaft rotatably disposed on one side of the driven disk, the rotating shaft and the rotating shaft being connected by a rotating plate, an active disk sleeved on the rotating shaft, an intermittent block disposed on the active disk, and a plurality of arc-shaped grooves that cooperate with the intermittent blocks being uniformly opened along the circumference of the driven disk.

[0013] Preferably, the drive unit further includes a vertical plate disposed on the top of the mounting plate and located on the side of the rotating shaft near the driven disk. A main shaft is rotatably disposed on the vertical plate, and the main shaft is connected to the transmission shaft by belt drive. A spur gear is sleeved on the main shaft. An incomplete gear that meshes with the spur gear is rotatably disposed on the vertical plate. A push rod that abuts against the rotating shaft is disposed on the outer wall of the incomplete gear.

[0014] Preferably, the transmission detection mechanism includes a square lamp plate disposed between the transmission rollers, light shields symmetrically disposed on both sides of the square lamp plate, a dust cover disposed between the tops of the light shields, a mounting cover symmetrically disposed on the top of the dust cover, and a CCD camera disposed inside the mounting cover.

[0015] Preferably, the bottom of the dust cover is provided with a cleaning mechanism, which includes square plates symmetrically arranged at the bottom of the dust cover. The square plates have strip-shaped grooves for non-woven fabric to pass through. An inclined scraper located inside the square plates is slidably arranged in the strip-shaped grooves. The square plates have sliding grooves for the inclined scraper to slide in. A spring is provided between the sliding grooves and the inclined scraper. A collection unit is provided on the top of the square plates.

[0016] Preferably, the collection unit includes an L-shaped collection frame disposed within a top square plate and located below a strip-shaped through groove. A strip-shaped handle is hinged to the top of the L-shaped collection frame, and a collection brush is disposed at the bottom of the strip-shaped handle.

[0017] Preferably, the collecting unit further includes a fixing plate that forms the outer wall of the square plate, a second spring is provided between the fixing plate and the strip handle, and an L-shaped collecting rod located below the strip handle is provided on the outer wall of the inclined scraper.

[0018] Furthermore, the present invention also provides a method for testing the transmission tensile strength of nonwoven fabrics, comprising the following steps:

[0019] S1. Inspection preparation: The operator wraps the nonwoven fabric to be inspected around the feeding roller, then pulls the nonwoven fabric through the transmission roller and wraps it around the receiving roller under the restriction of the transmission roller.

[0020] S2. Tensile strength test: When the transmission roller rotates, it drives the triangular fixing block to move. The nonwoven fabric is fixed by the cooperation of the triangular fixing block and the triangular groove. The rotation of the incomplete gear drives the rotating shaft to move under the restriction of the arc slide, thereby driving the stretching column to move together, thus realizing the stretching of the nonwoven fabric to different degrees.

[0021] S3. Transmission detection: The inclined scraper scrapes off the impurities on the non-woven fabric and they fall into the L-shaped collection frame. Then, the non-woven fabric is detected by the combination of a square light panel and a CCD camera.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] I. This invention achieves intermittent fixing of nonwoven fabric through the cooperation of triangular fixing blocks and triangular grooves; it also achieves intermittent rotation of the rotating shaft through the cooperation of driven disc and driving disc, thereby enabling the tension column to intermittently lift the nonwoven fabric and realize the tensile strength test of the nonwoven fabric.

[0024] Second, this invention uses an incomplete gear to drive the push rod to move. When the push rod moves, it can drive the rotating shaft to move along the arc-shaped slide. When the rotating shaft moves, it can drive the stretching column to move together, thereby achieving different degrees of stretching of the non-woven fabric and thus improving the detection quality.

[0025] Third, the present invention can block impurities on non-woven fabric by combining the inclined scraper and the strip groove, and the impurities will move along the inclined scraper to accumulate; in addition, the L-shaped collecting rod and the collecting brush can realize the centralized storage of accumulated impurities, preventing impurities from falling into the working environment and causing pollution. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Figure 1 This is a schematic diagram of the structure of the present invention.

[0028] Figure 2 This is a schematic diagram of the tensile strength testing mechanism of the present invention.

[0029] Figure 3 This is a schematic diagram of the structure of the fixing unit of the present invention.

[0030] Figure 4 This is the present invention. Figure 3 A magnified view of part A.

[0031] Figure 5 This is a schematic diagram of the structure of the driving unit of the present invention.

[0032] Figure 6 This is a schematic diagram of the structure of the driving unit of the present invention.

[0033] Figure 7 This is a schematic diagram of the transmission detection mechanism of the present invention.

[0034] Figure 8 This is a schematic diagram of the cleaning mechanism of the present invention.

[0035] Figure 9 This is a schematic diagram of the structure of the collection unit of the present invention.

[0036] In the diagram, 1. Mounting plate; 10. Support leg; 11. Feeding roller; 12. Receiving roller; 2. Tensile strength testing mechanism; 3. Transmission testing mechanism; 20. Drive shaft; 200. Transfer roller; 21. Fixing unit; 22. Support column; 220. Arc-shaped slide; 23. Rotating shaft; 24. Limiting plate; 25. Tensioning column; 26. Connecting plate; 27. Fixing rod; 28. Drive unit; 210. Drive motor; 211. Reciprocating screw; 212. Bevel gear one; 213. Bevel gear two; 214. Square block; 215. Strip plate; 216. Triangular fixing block; 217. Triangular groove; 280. Driven disc; 2800. Rotating shaft; 2801, Rotating plate; 2802, Active disc; 2803, Intermittent block; 2804, Arc groove; 281, Vertical plate; 282, Main shaft; 283, Spur gear; 284, Incomplete gear; 285, Push rod; 30, Square light panel; 31, Light shield; 32, Dust cover; 33, Mounting cover; 34, CCD camera; 4, Cleaning mechanism; 40, Square plate; 41, Strip groove; 42, Slanted scraper; 43, Sliding groove; 44, Spring 1; 45, Collection unit; 450, L-shaped collection frame; 451, Strip handle; 452, Collection brush; 453, Fixing plate; 454, Spring 2; 455, L-shaped collection rod. Detailed Implementation

[0037] The following is in conjunction with the appendix Figures 1 to 9 The embodiments of the present invention will be described in detail, but the present invention may be implemented in many different ways as defined and covered by the claims.

[0038] This application discloses a nonwoven fabric transmission tensile strength testing device. It is mainly used in the testing of nonwoven fabrics, and technically, it can simultaneously and continuously perform transmission and tensile strength testing on the nonwoven fabric, thereby improving the testing efficiency. In particular, during tensile testing, it can automatically stretch the nonwoven fabric to different degrees, thus improving the testing quality. Furthermore, this application can also clean impurities on the nonwoven fabric before transmission testing to prevent impurities from affecting the transmission testing and reducing its accuracy.

[0039] Example 1:

[0040] Reference Figure 1As shown, a nonwoven fabric transmission tensile strength testing device includes a mounting plate 1, support legs 10, a feeding roller 11, a taking-up roller 12, a tensile strength testing mechanism 2, and a transmission testing mechanism 3. Multiple support legs 10 are arranged at the four corners of the bottom of the mounting plate 1. The feeding roller 11 is rotatably mounted on the top of the mounting plate 1 via a bracket, and the feeding roller 11 is used to store the nonwoven fabric to be tested. The taking-up roller 12 is rotatably mounted on the top of the mounting plate 1 away from the feeding roller 11, and the taking-up roller 12 is used to roll up the nonwoven fabric after testing, facilitating its collection. The cooperation of the feeding roller 11 and the taking-up roller 12 can straighten the nonwoven fabric. The tensile strength testing mechanism 2 is located on the top of the mounting plate 1 and between the feeding roller 11 and the taking-up roller 12. The tensile strength testing mechanism 2 can automatically stretch the nonwoven fabric to different degrees, thereby improving the testing quality. The transmission testing mechanism 3 is mounted on the tensile strength testing mechanism 2, and the transmission testing mechanism 3 is used to perform transmission testing on the nonwoven fabric.

[0041] In the specific implementation process, the operator winds the nonwoven fabric to be tested onto the feeding roller 11, and then pulls the nonwoven fabric on the feeding roller 11 so that the nonwoven fabric passes through the tensile strength detection mechanism 2 and the transmission detection mechanism 3 before being wound onto the take-up roller 12. The cooperation between the feeding roller 11 and the take-up roller 12 straightens the nonwoven fabric to be tested. Then, the tensile strength detection mechanism 2 automatically stretches the nonwoven fabric to different degrees, thereby improving the detection quality. Then, the transmission detection mechanism 3 performs transmission detection on the nonwoven fabric, realizing continuous simultaneous transmission detection and tensile strength detection of the nonwoven fabric, thereby improving the detection efficiency of the nonwoven fabric.

[0042] Reference Figure 2As shown, this is the tensile testing mechanism 2 in this application; specifically, the tensile testing mechanism 2 includes a drive shaft 20, a transmission roller 200, a fixing unit 21, a support column 22, an arc-shaped slide 220, a rotating shaft 23, a limiting plate 24, a tension column 25, a connecting plate 26, a fixing rod 27, and a drive unit 28. The drive shaft 20 is rotatably and crosswise positioned on the top of the mounting plate 1 between the feeding roller 11 and the receiving roller 12. The transmission roller 200 is sleeved on the drive shaft 20. When the drive shaft 20 rotates, it can... The transmission rollers 200 rotate together, further straightening the nonwoven fabric. A fixing unit 21 is provided on the transmission rollers 200 to fix the nonwoven fabric between the rollers, preparing for tensile strength testing. Support columns 22 are symmetrically arranged on the top of the mounting plate 1 between the transmission rollers 200. Arc-shaped slide rails 220 are provided on the top of the support columns 22, and a rotating shaft 23 is rotatably and slidably arranged between the arc-shaped slide rails 220. The rotating shaft 23 extends outward through the arc-shaped slide 220 and can slide within the arc-shaped slide 220. Limiting plates 24 are symmetrically arranged at both ends of the rotating shaft 23 to limit its position and prevent it from falling out of the arc-shaped slide 220. Multiple tension columns 25 are evenly arranged circumferentially along the rotating shaft 23, and multiple connecting plates 26 are arranged axially between the tension columns 25. The connecting plates 26 and the rotating shaft 23 are connected by a fixing rod 27. When the rotating shaft 23 rotates, it drives the fixing rod 27 to rotate as well. When the fixing rod 27 rotates, it drives the connecting plates 26 to rotate as well. When the connecting plates 26 rotate, they drive the tension columns 25 to rotate as well. When the tension columns 25 rotate, they lift the nonwoven fabric they are in contact with, thus achieving tensile strength testing of the nonwoven fabric. A driving unit 28 is provided at one end of the rotating shaft 23. The driving unit 28 drives the rotating shaft 23 to rotate intermittently and moves it along the arc-shaped slide 220.

[0043] In the specific implementation process, the nonwoven fabric to be tested is further straightened by the transmission roller 200. Then, the nonwoven fabric between the transmission rollers 200 is fixed by the fixing unit 21. Then, the driving unit 28 drives the rotating shaft 23 to rotate intermittently and move the rotating shaft 23 within the arc-shaped slide 220. When the rotating shaft 23 rotates intermittently, it drives the fixing rod 27 to rotate together. When the fixing rod 27 rotates, it drives the connecting plate 26 to rotate together. When the connecting plate 26 rotates, it drives the tension column 25 to rotate together. When the tension column 25 rotates, it lifts up the nonwoven fabric that is in contact with it, thereby realizing the tensile strength test of the nonwoven fabric. At the same time, the rotating shaft 23 moves along the arc-shaped slide 220, thereby achieving different degrees of stretching of the nonwoven fabric, thus improving the test quality.

[0044] Reference Figure 3 and Figure 4As shown, this is the fixing unit 21 in this application. Specifically, the fixing unit 21 includes a drive motor 210, a reciprocating screw 211, a first bevel gear 212, and a second bevel gear 213. One of the drive shafts 20 is equipped with a drive motor 210 through a motor housing on one side, and the drive shafts 20 are connected by a belt drive. When the drive motor 210 rotates, it can drive one of the drive shafts 20 to rotate. When one of the drive shafts 20 rotates, it drives the other drive shaft 20 to rotate together through the belt drive. The reciprocating screw 211 is rotatably provided on the side of the drive shaft 20 away from the drive motor 210. The first bevel gear 212 is sleeved on the reciprocating screw 211, and the second bevel gear 213, which meshes with the first bevel gear 212, is sleeved on the drive shaft 20. When the drive shaft 20 rotates, it can drive the second bevel gear 213 to rotate together. When the second bevel gear 213 rotates, it can drive the first bevel gear 212 to rotate together. When the first bevel gear 212 rotates, it can drive the reciprocating screw 211 to rotate together.

[0045] In the specific implementation process, when the drive motor 210 rotates, it can drive one of the transmission shafts 20 to rotate. When one of the transmission shafts 20 rotates, it drives the other transmission shaft 20 to rotate together through belt drive. When the transmission shaft 20 rotates, it can drive the second bevel gear 213 to rotate together. When the second bevel gear 213 rotates, it can drive the first bevel gear 212 to rotate together. When the first bevel gear 212 rotates, it can drive the reciprocating lead screw 211 to rotate together.

[0046] Reference Figure 4 As shown, this is the fixing unit 21 in this application. Specifically, the fixing unit 21 also includes a square block 214, a strip plate 215, a triangular fixing block 216, and a triangular groove 217. The reciprocating screw 211 is fitted with a square block 214 that cooperates with it. When the reciprocating screw 211 rotates, it can drive the square block 214 to move up and down. The side of the square block 214 away from the reciprocating screw 211 is provided with a strip plate 215. When the square block 214 moves, it can drive the strip plate 215 to move together. Multiple triangular fixing blocks 216 are provided at the bottom of the strip plate 215. When the strip plate 215 moves, it can drive the triangular fixing blocks 216 to move together. Multiple triangular grooves 217 that cooperate with the triangular fixing blocks 216 are opened on the transmission roller 200. When the triangular fixing blocks 216 move, they enter into the triangular grooves 217. The nonwoven fabric is fixed by the cooperation of the triangular fixing blocks 216 and the triangular grooves 217.

[0047] In the specific implementation process, when the reciprocating screw 211 rotates, it can drive the square block 214 to move up and down. When the square block 214 moves, it can drive the strip plate 215 to move together. When the strip plate 215 moves, it can drive the triangular fixing block 216 to move together. When the triangular fixing block 216 moves, it enters the triangular groove 217. The non-woven fabric is intermittently fixed through the cooperation of the triangular fixing block 216 and the triangular groove 217.

[0048] Reference Figure 5 As shown, this is the drive unit 28 in this application. Specifically, the drive unit 28 includes a driven disk 280, a rotating shaft 2800, a rotating plate 2801, a driving disk 2802, an intermittent block 2803, and an arc-shaped groove 2804. The driven disk 280 is sleeved on one end of the rotating shaft 23, and the driven disk 280 can drive the rotating shaft 23 to rotate together when it rotates. The rotating shaft 2800 is rotatably arranged on one side of the driven disk 280, and the rotating shaft 2800 and the transmission shaft 20 are connected by a belt drive. When the transmission shaft 20 rotates, it can drive the rotating shaft 2800 to rotate together. The rotating shaft 2800 and the rotating shaft 23 are connected by the rotating plate 2801. The rotating shaft 23 can simultaneously drive the rotating plate 2801 to move together, and the rotating plate 2801 can drive the rotating shaft 2800 to move together when it moves; the rotating shaft 2800 is fitted with a driving disc 2802, and the rotating shaft 2800 can drive the driving disc 2802 to rotate together when it rotates; the driving disc 2802 is provided with an intermittent block 2803, and the driving disc 2802 can drive the intermittent block 2803 to rotate together when it rotates; a plurality of arc-shaped grooves 2804 that cooperate with the intermittent blocks 2803 are evenly opened along the circumference of the driven disc 280, and the intermittent blocks 2803 can drive the driven disc 280 to rotate intermittently when they rotate by cooperating with the arc-shaped grooves 2804.

[0049] In the specific implementation process, when the drive shaft 20 rotates, it can drive the rotating shaft 2800 to rotate together. When the rotating shaft 2800 rotates, it can drive the driving disc 2802 to rotate together. When the driving disc 2802 rotates, it can drive the intermittent block 2803 to rotate together. When the intermittent block 2803 rotates, it can drive the driven disc 280 to rotate intermittently through the cooperation with the arc groove 2804. When the driven disc 280 rotates intermittently, it can drive the rotating shaft 23 to rotate intermittently together, thereby realizing the intermittent rotation of the rotating shaft 23. When the rotating shaft 23 rotates intermittently, it can drive the tension column 25 to rotate intermittently together.

[0050] Reference Figure 6As shown, this is the drive unit 28 in this application. Specifically, the drive unit 28 also includes a vertical plate 281, a main shaft 282, a spur gear 283, an incomplete gear 284, and a push rod 285. The vertical plate 281 is provided on the top of the mounting plate 1 and on the side of the rotating shaft 23 near the driven disk 280. The main shaft 282 is rotatably mounted on the vertical plate 281, and the main shaft 282 is connected to the transmission shaft 20 by a belt drive. When the transmission shaft 20 rotates, it can drive the main shaft 282 to rotate together. The spur gear 283 is sleeved on the main shaft 282, and when the main shaft 282 rotates, it can drive the spur gear 283 to rotate together. The incomplete gear 284, which meshes with the spur gear 283, is rotatably mounted on the vertical plate 281, and when the spur gear 283 rotates, it can drive the incomplete gear 284 to rotate together. The push rod 285, which abuts against the rotating shaft 23, is provided on the outer wall of the incomplete gear 284, and when the incomplete gear 284 rotates, it can drive the push rod 285 to move together.

[0051] In the specific implementation process, when the drive shaft 20 rotates, it can drive the main shaft 282 to rotate together. When the main shaft 282 rotates, it can drive the spur gear 283 to rotate together. When the spur gear 283 rotates, it can drive the incomplete gear 284 to rotate together. When the incomplete gear 284 rotates, it can drive the push rod 285 to move together. When the push rod 285 moves, it can drive the rotating shaft 23 to move along the arc-shaped slide 220. When the rotating shaft 23 moves, it can drive the tension column 25 to move together.

[0052] Reference Figure 7 As shown, this is the transmission detection mechanism 3 in this application. Specifically, the transmission detection mechanism 3 includes a square light plate 30, a light shield 31, a dust cover 32, a mounting cover 33, and a CCD camera 34. The square light plate 30 is arranged between the transmission rollers 200 to provide the light source required for transmission detection. The light shield 31 is symmetrically arranged on both sides of the square light plate 30 to prevent light leakage from the square light plate 30. The dust cover 32 is arranged between the tops of the light shield 31 to prevent dust from entering the dust cover 32 and affecting the transmission detection. The mounting cover 33 is symmetrically arranged on the top of the dust cover 32, and the CCD camera 34 is arranged inside the mounting cover 33 to capture defects on the nonwoven fabric.

[0053] In the specific implementation process, the square light panel 30 is turned on so that the light from the square light panel 30 shines on the non-woven fabric. Then, the non-woven fabric moves under the action of the transmission roller 200. The CCD camera 34 captures the defects on the non-woven fabric to achieve transmission detection of the non-woven fabric.

[0054] Example 2:

[0055] Reference Figure 8As shown, based on Embodiment 1, in order to clean impurities on the nonwoven fabric before transmission detection and prevent impurities on the nonwoven fabric from affecting the transmission detection and thus reducing the accuracy of the transmission detection, in a specific embodiment of this solution, a cleaning mechanism 4 is provided at the bottom of the dust cover 32; specifically, the cleaning mechanism 4 includes a square plate 40, a strip groove 41, an inclined scraper 42, a sliding groove 43, a spring 44, and a collection unit 45. The bottom of the dust cover 32 is symmetrically provided with square plates 40, and a strip groove 41 is opened on the square plate 40 for the nonwoven fabric to pass through. A spring 44 is slidably arranged in the strip groove 41 located on the square plate 40. The inclined scraper 42 inside the square plate 40 and the strip groove 41 can slide within the square plate 40. The inclined scraper 42 can block impurities on the non-woven fabric, and the impurities will move along the inclined scraper 42 and accumulate. The square plate 40 has a sliding groove 43 for the inclined scraper 42 to slide. A spring 44 is provided between the sliding groove 43 and the inclined scraper 42. The spring 44 can always provide a pushing force to the inclined ring plate towards the non-woven fabric. A collection unit 45 is provided on the top square plate 40. The collection unit 45 collects the accumulated impurities and prevents the impurities from falling into the working environment and causing pollution.

[0056] One point to note is that the bottom of the strip groove 41 should be in contact with the bottom of the non-woven fabric, so that the square plate 40 can block impurities at the bottom of the non-woven fabric and prevent the impurities at the bottom of the non-woven fabric from affecting the transmission detection.

[0057] In the specific implementation process, when the nonwoven fabric passes through the strip groove 41 and the square plate 40, the impurities on the nonwoven fabric can be blocked by the inclined scraper 42, and the impurities will move along the inclined scraper 42 to accumulate. Then, the accumulated impurities are collected and stored by the collection unit 45 to prevent the impurities from falling into the working environment and causing pollution to the working environment.

[0058] Reference Figure 9As shown, this is the collection unit 45 in this application; specifically, the collection unit 45 includes an L-shaped collection frame 450, a strip handle 451, a collection brush 452, a fixing plate 453, a spring 454, and an L-shaped collection rod 455. The L-shaped collection frame 450 is located inside the top square plate 40 and below the strip groove 41. The L-shaped collection frame 450 is used to collect impurities on the non-woven fabric. The top of the L-shaped collection frame 450 is hinged to the strip handle 451, and the bottom of the strip handle 451 is provided with the collection brush 452. When rotating, it can drive the collecting brush 452 to rotate together; a fixed plate 453 is provided on the outer wall of the square plate 40, and a spring 454 is provided between the fixed plate 453 and the strip handle 451. The spring 454 can always provide the strip handle 451 with a pushing force away from the fixed plate 453; an L-shaped collecting rod 455 is provided on the outer wall of the inclined scraper 42, located below the strip handle 451. When the inclined scraper 42 moves, it can drive the L-shaped collecting rod 455 to move together, and the L-shaped collecting rod 455 can push the strip handle 451 to rotate toward the fixed plate 453.

[0059] In the specific implementation process, when the nonwoven fabric is lifted by the stretching column 25, it will drive the inclined scraper 42 to move. When the inclined scraper 42 moves, it can drive the L-shaped collecting rod 455 to move together. The L-shaped collecting rod 455 can push the strip handle 451 to rotate towards the fixed plate 453. When the strip handle 451 rotates, it can drive the collecting brush 452 to rotate together. When the collecting brush 452 rotates, it can sweep the impurities accumulated on the nonwoven fabric into the L-shaped collecting frame 450, so as to realize the centralized storage of the accumulated impurities and prevent the impurities from falling into the working environment and causing pollution to the working environment.

[0060] Furthermore, the present invention also provides a method for testing the transmission tensile strength of nonwoven fabrics, comprising the following steps:

[0061] Step 1: The operator winds the nonwoven fabric to be tested onto the feed roller 11, then pulls the nonwoven fabric on the feed roller 11, causing it to wind onto the take-up roller 12 via the transfer roller 200. The cooperation of the feed roller 11 and the take-up roller 12 straightens the nonwoven fabric to be tested. During this process, the drive motor 210 is started. The rotation of the drive motor 210 drives one of the drive shafts 20 to rotate. The rotation of one drive shaft 20, in turn, drives the other drive shaft 20 to rotate via belt drive. The rotation of the drive shaft 20 drives the bevel gear 2... When bevel gear 213 rotates, it drives bevel gear 212 to rotate as well. When bevel gear 212 rotates, it drives reciprocating screw 211 to rotate as well. When reciprocating screw 211 rotates, it drives square block 214 to move up and down. When square block 214 moves, it drives strip plate 215 to move as well. When strip plate 215 moves, it drives triangular fixing block 216 to move as well. When triangular fixing block 216 moves, it enters triangular groove 217. The nonwoven fabric is intermittently fixed through the cooperation of triangular fixing block 216 and triangular groove 217.

[0062] Step 2: While fixing the nonwoven fabric, the rotation of the drive shaft 20 drives the rotation shaft 2800 to rotate together. The rotation of the rotation shaft 2800 drives the active disc 2802 to rotate together. The rotation of the active disc 2802 drives the intermittent block 2803 to rotate together. When the intermittent block 2803 rotates, it drives the driven disc 280 to rotate intermittently through the cooperation of the arc groove 2804. When the driven disc 280 rotates intermittently, it drives the rotation shaft 23 to rotate intermittently. When the rotation shaft 23 rotates intermittently, it drives the fixing rod 27 to rotate together. When the fixing rod 27 rotates, it drives the connecting plate 26 to rotate together. When the connecting plate 26 rotates, it drives the tension column 25 to rotate together. When the tension column 25 rotates, it can lift up the nonwoven fabric that is in contact with it, thereby realizing the tensile strength test of the nonwoven fabric.

[0063] Step 3: Simultaneously, when the drive shaft 20 rotates, it drives the main shaft 282 to rotate as well. When the main shaft 282 rotates, it drives the spur gear 283 to rotate as well. When the spur gear 283 rotates, it drives the incomplete gear 284 to rotate as well. When the incomplete gear 284 rotates, it drives the push rod 285 to move as well. When the push rod 285 moves, it drives the rotating shaft 23 to move along the arc-shaped slide 220. When the rotating shaft 23 moves, it drives the tensioning column 25 to move as well. This achieves different degrees of stretching of the nonwoven fabric, thereby improving the inspection quality.

[0064] Step 4: When the nonwoven fabric passes through the square plate 40 via the strip groove 41, the impurities on the nonwoven fabric are blocked by the inclined scraper 42, and the impurities will move along the inclined scraper 42 to accumulate. When the nonwoven fabric is lifted by the stretching column 25, it will drive the inclined scraper 42 to move. When the inclined scraper 42 moves, it will drive the L-shaped collecting rod 455 to move together. The L-shaped collecting rod 455 will push the strip handle 451 to rotate towards the fixed plate 453. When the strip handle 451 rotates, it will drive the collecting brush 452 to rotate together. When the collecting brush 452 rotates, it will sweep the impurities accumulated on the nonwoven fabric into the L-shaped collecting frame 450, realizing the centralized storage of the accumulated impurities and preventing impurities from falling into the working environment and causing pollution.

[0065] Step 5: After cleaning the nonwoven fabric, turn on the square light panel 30 so that the light from the square light panel 30 shines on the nonwoven fabric. Then, under the action of the transfer roller 200, the nonwoven fabric moves and the CCD camera 34 captures the defects on the nonwoven fabric to achieve transmission detection of the nonwoven fabric.

[0066] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0067] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A nonwoven fabric transmission tensile strength testing device, comprising a mounting plate (1), wherein multiple support legs (10) are provided at the four corners of the bottom of the mounting plate (1), characterized in that: The top of the mounting plate (1) is rotatably provided with a feeding roller (11) via a bracket. The top of the mounting plate (1) away from the feeding roller (11) is rotatably provided with a receiving roller (12). The top of the mounting plate (1) and located between the feeding roller (11) and the receiving roller (12) is provided with a tensile testing mechanism (2). The tensile testing mechanism (2) is provided with a transmission testing mechanism (3). The tensile strength testing mechanism (2) includes a drive shaft (20) that is rotatably and crosswise arranged on the top of the mounting plate (1) and located between the feeding roller (11) and the receiving roller (12). A transmission roller (200) is sleeved on the drive shaft (20). A fixing unit (21) is provided on the transmission roller (200). Support columns (22) are symmetrically arranged on the top of the mounting plate (1) and between the transmission rollers (200). An arc-shaped slide rail (220) is provided on the top of the support column (22). The tensile testing mechanism (2) further includes a rotating shaft (23) that is rotatably and slidably disposed between the arc-shaped slide rails (220), and the rotating shaft (23) extends outward through the arc-shaped slide rails (220). Limiting plates (24) are symmetrically disposed at both ends of the rotating shaft (23), and a plurality of tensile columns (25) are uniformly disposed along the circumference of the rotating shaft (23). A driving unit (28) is disposed at one end of the rotating shaft (23). The fixing unit (21) includes a drive motor (210) mounted on one side of one of the drive shafts (20) through a motor housing. A reciprocating screw (211) is rotatably mounted on the side of the drive shaft (20) away from the drive motor (210). A square block (214) is fitted on the reciprocating screw (211) to cooperate with it. A strip plate (215) is provided on the side of the square block (214) away from the reciprocating screw (211). A plurality of triangular fixing blocks (216) are provided at the bottom of the strip plate (215). A plurality of triangular grooves (217) that cooperate with the triangular fixing blocks (216) are opened on the transmission roller (200). The drive unit (28) includes a driven disk (280) sleeved on one end of a rotating shaft (23). A rotating shaft (2800) is rotatably arranged on one side of the driven disk (280). The rotating shaft (2800) and the rotating shaft (23) are connected by a rotating plate (2801). An active disk (2802) is sleeved on the rotating shaft (2800). An intermittent block (2803) is arranged on the active disk (2802). A plurality of arc-shaped grooves (2804) that cooperate with the intermittent block (2803) are evenly opened along the circumference of the driven disk (280). The drive unit (28) further includes a vertical plate (281) disposed on the top of the mounting plate (1) and located on the side of the rotating shaft (23) near the driven disk (280). A main shaft (282) is rotatably disposed on the vertical plate (281), and the main shaft (282) is connected to the transmission shaft (20) by belt drive. A spur gear (283) is sleeved on the main shaft (282). An incomplete gear (284) meshing with the spur gear (283) is rotatably disposed on the vertical plate (281). A push rod (285) that abuts against the rotating shaft (23) is disposed on the outer wall of the incomplete gear (284).

2. The nonwoven fabric transmission tensile strength testing device according to claim 1, characterized in that: The transmission detection mechanism (3) includes a square lamp plate (30) disposed between the transmission rollers (200). A light shield (31) is symmetrically disposed on both sides of the square lamp plate (30). A dust cover (32) is disposed between the tops of the light shield (31). A mounting cover (33) is symmetrically disposed on the top of the dust cover (32). A CCD camera (34) is disposed inside the mounting cover (33).

3. The nonwoven fabric transmission tensile strength testing device according to claim 2, characterized in that: The bottom of the dust cover (32) is provided with a cleaning mechanism (4). The cleaning mechanism (4) includes square plates (40) symmetrically arranged at the bottom of the dust cover (32). The square plate (40) has a strip groove (41) for non-woven fabric to pass through. A slanted scraper (42) is slidably arranged in the strip groove (41) and located in the square plate (40). A sliding groove (43) is provided in the square plate (40) for the slanted scraper (42) to slide. A spring (44) is provided between the sliding groove (43) and the slanted scraper (42). A collection unit (45) is provided on the top of the square plate (40).

4. The nonwoven fabric transmission tensile strength testing device according to claim 3, characterized in that: The collection unit (45) includes an L-shaped collection frame (450) disposed in the top square plate (40) and located below the strip through groove (41). The top of the L-shaped collection frame (450) is hinged with a strip handle (451), and the bottom of the strip handle (451) is provided with a collection brush (452).

5. The nonwoven fabric transmission tensile strength testing device according to claim 4, characterized in that: The collecting unit (45) also includes a fixing plate (453) for the outer wall of the square plate (40), a spring (454) is provided between the fixing plate (453) and the strip handle (451), and an L-shaped collecting rod (455) located below the strip handle (451) is provided on the outer wall of the inclined scraper (42).

6. A method for testing the transmission tensile strength of nonwoven fabrics, comprising the transmission tensile strength testing device for nonwoven fabrics as described in claim 5, characterized in that, The detection method includes the following steps: S1. Inspection preparation: The operator wraps the non-woven fabric to be inspected around the feed roller (11), then pulls the non-woven fabric through the transfer roller (200) and wraps it around the take-up roller (12) under the restriction of the transfer roller (200); S2, Tensile test: When the transmission roller (200) rotates, it drives the triangular fixing block (216) to move. The non-woven fabric is fixed by the cooperation of the triangular fixing block (216) and the triangular groove (217). The rotation of the incomplete gear (284) drives the rotating shaft (23) to move under the restriction of the arc slide (220), thereby driving the tension column (25) to move together, and thus achieving different degrees of tension on the non-woven fabric. S3. Transmission detection: The oblique scraper (42) scrapes off the impurities on the nonwoven fabric and they fall into the L-shaped collection frame (450). Then, the nonwoven fabric is detected by the cooperation of the square light panel (30) and the CCD camera (34).

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