Textile fabric drying and air permeability detection device

Abstract

The present application relates to the technical field of textile fabric, and particularly relates to a kind of textile fabric drying after air permeability detection device;Including: guide module, with the guide frame for cloth to pass through and the cleaning window being longitudinally penetrated on the guide frame;Cleaning module, horizontally arranged on the guide module;The cleaning module is provided with the pneumatic cleaning part and the roll adhesive cleaning part along the guide direction of the guide module;Flat combing module, with four groups and two pairs of opposite flat combing units, and every two groups of opposite flat combing units respectively constitute horizontal flat combing unit and longitudinal flat combing unit;Air permeability detection module, centrally arranged in the middle of the flat combing module;The present application can not only efficiently remove the surface impurities of cloth, but also ensure that the cloth is always in the best flat state.

Description

Technical Field

[0001] This invention relates to the field of textile fabric technology, specifically to a device for detecting the air permeability of textile fabrics after drying. Background Technology

[0002] In textile processing, breathability is one of the important indicators for evaluating the comfort, functionality, and application performance of textile fabrics. Especially for textile fabrics used in clothing, home textiles, and functional materials, their breathability directly affects the user experience and quality control. Therefore, after textile fabrics are processed and dried, breathability testing is usually required to ensure that their performance meets design and usage requirements.

[0003] Currently, most existing air permeability testing equipment is based on standardized testing methods, but it still has many limitations in practical applications. First, the surface of dried textile fabrics often has lint, loose threads, and other impurities attached. If these are not effectively removed, they will directly interfere with the air permeability test results, causing data distortion. Second, due to uneven heating or inconsistent tension during the drying process, the fabric is prone to wrinkles or irregular deformation. If the fabric is not fully flattened before testing, it will also affect the uniformity of airflow distribution and the effectiveness of the testing area, leading to a decrease in testing accuracy.

[0004] In addition, existing testing devices suffer from problems such as simple structure and poor adaptability in terms of fabric positioning, limiting and automatic guidance, making it difficult to meet the needs of modern textile testing processes for high efficiency, high accuracy and continuous testing. Summary of the Invention

[0005] To address the aforementioned issues, a device for testing the air permeability of textile fabrics after drying is provided. This device not only efficiently removes impurities from the surface of the dried fabric but also ensures that the fabric remains in an optimal combed state. This solves the technical problem of inaccurate air permeability test results caused by foreign matter adhering to the fabric surface and wrinkles easily forming on the dried fabric surface.

[0006] To address the problems of existing technologies, this invention provides a textile fabric air permeability testing device after drying, comprising: a guiding module, having a guiding frame for the fabric to pass through and a cleaning window longitudinally extending through the guiding frame; a cleaning module, horizontally disposed on the guiding module with its cleaning end passing through the cleaning window and facing the fabric; the cleaning module having a pneumatic cleaning part and a roller-adhesive cleaning part disposed along the guiding direction of the guiding module; a combing module disposed at the outlet of the guiding module; the combing module having four sets of combing units arranged in pairs opposite each other, each pair of opposite combing units constituting a transverse combing unit and a longitudinal combing unit; and an air permeability testing module centrally disposed in the middle of the combing module.

[0007] Preferably, the combing module further includes a synchronous linear driver capable of synchronously driving the transverse combing units to move closer to each other; the synchronous linear driver is horizontally positioned across the top of the transverse combing unit and its driving end is connected to the transverse combing unit in a transmission connection.

[0008] Preferably, the longitudinal combing unit is provided with a fixed combing guide and a movable combing guide that can move relatively close to or away from the fixed combing guide, and further includes a second support frame that can horizontally support the fixed combing guide and an adjustment unit that can drive the movable combing guide to move longitudinally closer to or away from the fixed combing guide.

[0009] Preferably, the adjustment unit is provided with a first adjustment frame that can slide longitudinally and a spring that can continuously support the first adjustment frame, as well as an adjustment knob that can freely adjust the support stroke of the spring; when the adjustment knob is turned clockwise, the first adjustment frame rises longitudinally, and when the adjustment knob is turned counterclockwise, the first adjustment frame descends longitudinally.

[0010] Preferably, the combing module further includes a tensioning unit capable of continuously tensioning the fabric to be tested. The tensioning unit is horizontally arranged along the long side of the longitudinal combing unit on the side of the longitudinal combing unit near the outlet of the cleaning module.

[0011] Preferably, the guiding module further includes a third support frame capable of providing horizontal support for the guiding frame; the third support frame is vertically fixed at the bottom of the guiding frame; the guiding frame is a hollow rectangular frame with openings at both ends, and its internal space forms a guiding channel for the fabric to pass through; the cleaning windows are longitudinally opened through the guiding frame and are arranged equidistantly along the short side of the guiding frame.

[0012] Preferably, the cleaning module further includes a longitudinal adjustment unit capable of adjusting the cleaning distance between the pneumatic cleaning section and the roller adhesive cleaning section and the fabric; the longitudinal adjustment unit is horizontally disposed on the guide frame along the long side of the guide frame; the pneumatic cleaning section and the roller adhesive cleaning section are both horizontally disposed below the longitudinal adjustment unit.

[0013] Preferably, the fixed combing guide and the movable combing guide are specifically long convex strips and long concave strips that cooperate with each other; when the long convex strips and long concave strips cooperate with each other, a guide gap extending along the fabric conveying direction is formed between the long convex strips and long concave strips to limit the fabric conveying path and realize the combing and guiding effect on the fabric.

[0014] The advantages of this invention compared to the prior art are:

[0015] 1. This invention, through the cooperation of the guiding module and the cleaning module, achieves precise positioning and conduction of the fabric to be tested, as well as deep cleaning of the front and back of the fabric; effectively removes lint, threads, and foreign objects adhering to the surface of the fabric to be tested; and ensures the testing accuracy of the fabric when it is subsequently tested by the air permeability testing module.

[0016] 2. This invention achieves effective guidance and smoothing of the fabric entering the detection area through a combing module; it effectively solves the technical problems that the surface of the dried fabric is prone to wrinkles, and that the wrinkles directly affect the final air permeability test accuracy, as well as the inaccurate final air permeability test accuracy caused by the fabric in the detection area not being fully flattened. Attached Figure Description

[0017] Figure 1 A three-dimensional device for testing the air permeability of textile fabrics after drying. Figure 1 ;

[0018] Figure 2 This is a side view of a device for testing the air permeability of textile fabrics after drying.

[0019] Figure 3 A three-dimensional device for testing the air permeability of textile fabrics after drying. Figure 2 ;

[0020] Figure 4 This is a three-dimensional diagram of a textile fabric breathability testing device after drying, after removing the guide module and the cleaning module.

[0021] Figure 5 This is a top view of a device for testing the air permeability of textile fabrics after drying.

[0022] Figure 6 This is an exploded 3D view of the guide module and cleaning module in a textile fabric air permeability testing device after drying.

[0023] Figure 7 This is a three-dimensional diagram of the combing module and the air permeability testing module in a textile fabric air permeability testing device after drying.

[0024] Figure 8 This is a side view of the guide module and cleaning module in a textile fabric air permeability testing device after drying;

[0025] Figure 9 This is a side view of the combing module in a textile fabric air permeability testing device after drying.

[0026] Figure 10 This is a three-dimensional structural diagram of the combing module in a textile fabric air permeability testing device after drying.

[0027] The numbers on the map are:

[0028] 1. Guiding module; 11. Guiding frame; 12. Cleaning window; 13. Third support frame;

[0029] 2. Cleaning module; 21. Pneumatic cleaning unit; 22. Roller cleaning unit; 23. Longitudinal adjustment unit; 231. Fourth support frame; 232. Second adjusting screw; 233. Third guide rod; 234. Third adjusting frame;

[0030] 3. Combing Module; 31. Horizontal Combing Unit; 32. Vertical Combing Unit; 321. Fixed Combing Guide; 322. Movable Combing Guide; 323. Second Support Frame; 324. Adjustment Unit; 3241. First Adjustment Frame; 3242. Spring; 3243. Adjustment Knob; 3244. First Fixed Frame; 3245. Second Guide Rod; 3246. First Adjustment Screw; 325. Tensioning Unit; 3251. Second Fixed Frame; 3252. Second Adjustment Frame; 3253. Tensioning Wheel; 3254. Adjustment Rod; 33. Synchronous Linear Driver; 331. First Support Frame; 332. First Guide Rod; 333. Bidirectional Screw; 334. Servo Motor;

[0031] 4. Breathability testing module. Detailed Implementation

[0032] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0033] See Figures 1 to 10 As shown: A textile fabric air permeability testing device after drying includes: a guiding module 1, which has a guiding frame 11 for the fabric to pass through and a cleaning window 12 longitudinally opened on the guiding frame 11; a cleaning module 2, which is horizontally arranged on the guiding module 1 and has its cleaning end passing through the cleaning window 12 and facing the fabric; the cleaning module 2 has a pneumatic cleaning part 21 and a roller-adhesive cleaning part 22 arranged along the guiding direction of the guiding module 1; a combing module 3, which is arranged at the outlet of the guiding module 1; the combing module 3 has four sets of combing units arranged in pairs, each pair of combing units forming a transverse combing unit 31 and a longitudinal combing unit 32; and an air permeability testing module 4, which is centrally located in the middle of the combing module 3.

[0034] When testing the air permeability of dried textile fabric, the fabric is first guided sequentially through the guide frame 11 and the longitudinal combing unit 32 located at the front of the device. Then, the cleaning module 2, the combing module 3, and the external fabric winding device (not shown in the figure) are activated sequentially to drive the fabric forward continuously. During movement, the fabric first passes through the pneumatic cleaning section 21 and the roller-adhesive cleaning section 22 of the cleaning module 2, sequentially cleaning and removing lint, fiber debris, and other adhering impurities from the fabric surface. This two-stage cleaning path effectively improves the surface cleanliness of the fabric, preventing residual foreign matter from obscuring the fabric mesh and ensuring more accurate and reliable results for subsequent air permeability testing.

[0035] During the fabric's movement by the winding equipment, the longitudinal combing unit 32 automatically operates synchronously, using flexible low-pressure clamping to longitudinally tension and pull the fabric. This continuously maintains the fabric's flatness and tension during transport, effectively preventing wrinkles caused by thermal shrinkage or residual stress during drying. Wrinkles also prevent uneven airflow distribution, which could reduce the stability and repeatability of test data. Furthermore, to further improve the uniformity of fabric distribution in the test area, the transverse combing unit 31 also operates synchronously, providing auxiliary stretching to the fabric entering the test area. This ensures the fabric is tensioned in both the longitudinal and transverse directions, achieving four-way pressure support and ensuring the fabric presents an ideal flatness within the test area. Finally, the air permeability testing module 4 accurately tests the fabric, outputting highly reliable air permeability parameter data.

[0036] The longitudinal combing unit 32 and the transverse combing unit 31 have the same structure.

[0037] By linking multi-stage cleaning with a two-way combing structure, the fabric is efficiently cleaned and tensioned before entering the testing area. This effectively solves the problem of inaccurate air permeability testing caused by wrinkles or impurities in the fabric after drying, significantly improving testing accuracy and ensuring the authenticity and comparability of test results.

[0038] See Figure 5 As shown: The longitudinal combing unit 32 is provided with a fixed combing guide 321 and a movable combing guide 322 that can move relatively close to or away from the fixed combing guide 321. The combing module 3 also includes a synchronous linear driver 33 that can synchronously drive the transverse combing units 31 to move closer to each other. The synchronous linear driver 33 is horizontally arranged across the top of the transverse combing unit 31 and its driving end is connected to the transverse combing unit 31 in a transmission connection.

[0039] The synchronous linear driver 33 includes a first support frame 331, a first guide rod 332, a bidirectional screw 333, and a servo motor 334. Two first support frames 331 are provided, vertically positioned opposite each other on both sides of the transverse combing unit 31. The first guide rod 332 and the bidirectional screw 333 are horizontally positioned between the two first support frames 331. The first guide rod 332 passes through the transverse combing unit 31 and is slidably engaged with it. The bidirectional screw 333 passes through the transverse combing unit 31 and is screwed to it. The servo motor 334 is fixedly mounted on one side of the first support frame 331 and is connected to the drive screw.

[0040] When further improvement in the uniformity of fabric spreading within the detection area is required, an external power supply can be connected to drive the servo motor 334 to start. The rotation of the servo motor 334 drives the bidirectional screw 333 to rotate synchronously. Because the bidirectional screw 333 adopts a symmetrical thread structure, its two ends can drive two sets of transverse combing units 31 to move synchronously towards each other, causing the two sets of transverse combing units 31 to slowly approach the center of the detection area and achieve low-pressure clamping in the center area of ​​the fabric. Subsequently, the bidirectional screw 333 is driven to rotate in the opposite direction, causing the transverse combing units 31 to move symmetrically away from the center to both sides. Under clamping conditions, the fabric is gradually stretched from the center to both sides, thereby achieving uniform transverse stretching and straightening of the fabric by the combing units, allowing the fabric mesh structure to be evenly spread.

[0041] The synchronous linear driver 33 enables synchronous and symmetrical stretching motion of the two sets of transverse combing units 31 under electronic control. Combined with the central clamping and stretching motion path to both sides, it effectively solves the detection error problem caused by uneven distribution of transverse fabric tension in the traditional fabric detection process.

[0042] See Figure 8 As shown: The longitudinal combing unit 32 also includes a second support frame 323 capable of horizontally supporting the fixed combing guide 321 and an adjustment unit 324 capable of driving the movable combing guide 322 longitudinally closer to or further away from the fixed combing guide 321.

[0043] When it is necessary to flexibly adjust the guide distance between the fixed combing guide 321 and the movable combing guide 322 according to different fabric widths or fabric tension, in order to meet the required guiding accuracy and flattening effect of the fabric during transmission, it is only necessary to connect an external power supply to drive the adjustment unit 324 to work. This will drive the movable combing guide 322 to make precise displacement adjustments in the longitudinal direction, allowing it to move closer to or further away from the fixed combing guide 321.

[0044] During the adjustment process, the control system can monitor the actual position of the movable combing guide 322 in real time according to the set spacing parameters or through sensor feedback signals. When the movable combing guide 322 is detected to have moved to the preset target position or reached the system-set spacing range, the control system automatically stops the adjustment unit 324, thereby completing the automated and precise adjustment of the combing guide structure and ensuring that the fabric is always in a suitable tension and position state in the guide channel.

[0045] See Figure 9 As shown: The adjustment unit 324 is provided with a first adjustment frame 3241 that can slide longitudinally and a spring 3242 that can continuously support the first adjustment frame 3241, and an adjustment knob 3243 that can freely adjust the support stroke of the spring 3242; when the adjustment knob 3243 is rotated clockwise, the first adjustment frame 3241 rises longitudinally, and when the adjustment knob 3243 is rotated counterclockwise, the first adjustment frame 3241 descends longitudinally.

[0046] The adjustment unit 324 further includes a first fixing frame 3244, a second guide rod 3245 vertically disposed on the first adjustment frame 3241, and a first adjusting screw 3246; the rod portion of the second guide rod 3245 passes through the first fixing frame 3244 and slides in cooperation with the first fixing frame 3244; the spring 3242 is coaxially sleeved on the outside of the second guide rod 3245, and one end of the spring 3242 abuts against the upper surface of the first adjustment frame 3241, and the other end abuts against the lower surface of the first fixing frame 3244; the adjusting knob 3243 is screwed onto the outside of the first adjusting screw 3246; the fixed combing guide part 321 is horizontally fixedly disposed below the first adjustment frame 3241.

[0047] When it is necessary to adjust the relative distance between the fixed combing guide 321 and the movable combing guide 322 to adapt to fabrics of different widths or tensions, precise adjustment can be achieved by manually or automatically driving the adjustment mechanism. Specifically, in manual adjustment, the operator only needs to rotate the adjustment knob 3243 located at the end of the first adjustment screw 3246 clockwise. The adjustment knob 3243 moves downward along the axial direction of the first adjustment screw 3246 under threaded engagement, thereby compressing the spring 3242 located between the knob and the first adjustment frame 3241. As the spring 3242 is continuously compressed, the adjustment knob 3243 will transmit axial thrust downward, thereby driving the first adjustment frame 3241 to move upward in the longitudinal direction, achieving the purpose of adjusting the movable combing guide 322 upward and increasing the guide distance.

[0048] Conversely, when it is necessary to reduce the guide spacing, simply rotate the adjustment knob 3243 counterclockwise to move it upward along the screw axis. Due to the elastic recovery effect of the spring 3242, the first adjustment bracket 3241 will automatically move downward in the longitudinal direction, thereby driving the movable combing guide 322 to approach the fixed combing guide 321, thus completing the adjustment of reducing the guide spacing.

[0049] Furthermore, to improve the convenience and accuracy of adjustment, the longitudinal movement of the first adjustment frame 3241 can also be automatically driven by setting an electric push rod, servo slide or other automated linear drive mechanism. The system can set the target spacing according to the fabric parameters and drive the adjustment mechanism to accurately position it to the preset position through the controller.

[0050] See Figure 9 As shown: The combing module 3 also includes a tensioning unit 325 that can continuously tension the fabric to be tested. The tensioning unit 325 is horizontally arranged along the long side of the longitudinal combing unit 32 on the side of the longitudinal combing unit 32 near the outlet of the cleaning module 2.

[0051] The tensioning unit 325 includes a second fixed frame 3251, a second adjusting frame 3252, a tensioning wheel 3253, and an adjusting rod 3254; the tensioning wheel 3253 is rotatably disposed within the second adjusting frame 3252; the adjusting rod 3254 is vertically disposed at the top of the second adjusting frame 3252 and passes through the second fixed frame 3251.

[0052] When it is necessary to adjust the longitudinal tension stroke of the tensioning wheel 3253, simply drive the adjusting rod 3254 to move; the adjusting rod 3254 drives the second adjusting frame 3252 to move longitudinally, thereby freely adjusting the tension of the fabric according to the tension requirements.

[0053] See Figure 6 As shown: the guide module 1 also includes a third support frame 13 that can provide horizontal support for the guide frame 11; the third support frame 13 is vertically fixed at the bottom of the guide frame 11; the guide frame 11 is a hollow rectangular frame with openings at both ends, and its internal space forms a guide channel for the fabric to pass through; the cleaning window 12 is longitudinally opened through the guide frame 11 and multiple windows are equidistantly arranged along the short side of the guide frame 11.

[0054] By setting the guide frame 11 into a rectangular frame structure and longitudinally extending multiple cleaning windows 12 through it, a stable channel can be provided for the subsequent insertion and operation of multiple cleaning modules 2 while simultaneously guiding and transporting the fabric horizontally. Specifically, the rectangular frame, as a support and limiting structure, is closed in shape and highly rigid, effectively restraining the free swing of the fabric in the lateral direction. At the same time, the cleaning windows 12 are longitudinally extended on the guide frame 11, and their distribution corresponds to the positions of the cleaning modules 2, allowing each cleaning module 2 to be inserted into the cleaning window 12 during the cleaning process without affecting the continuity of the fabric transport path or the balanced distribution of fabric tension.

[0055] As the fabric is guided into the cleaning window 12 area by the guide frame 11, the structure's dual functions of rigid framing and window guidance ensure that the fabric remains flat and spread out longitudinally, effectively preventing operational deviations caused by fabric looseness, shaking, or lateral deviation. Especially when the cleaning module 2 performs pneumatic or roller-adhesive cleaning on the fabric surface, the fabric does not experience significant lateral shift under the constraint of the guide frame 11, ensuring the stability and uniformity of the cleaning contact area. This provides a clean and undisturbed fabric surface for subsequent air permeability testing.

[0056] See Figure 6 As shown: The cleaning module 2 also includes a longitudinal adjustment unit 23 that can adjust the cleaning distance between the pneumatic cleaning part 21 and the roller adhesive cleaning part 22 and the fabric; the longitudinal adjustment unit 23 is horizontally arranged on the guide frame 11 along the long side direction; the pneumatic cleaning part 21 and the roller adhesive cleaning part 22 are both horizontally arranged below the longitudinal adjustment unit 23.

[0057] The cleaning module 2 is provided in two sets. One set is horizontally fixed on the upper surface of the guide frame 11 and near the inlet end of the guide frame 11, and the other set is horizontally fixed on the lower surface of the guide frame 11 and near the outlet end of the guide frame 11; used to clean both sides of the fabric respectively.

[0058] The pneumatic cleaning unit 21 is specifically constructed as an air guide chamber structure. The air guide chamber is connected to an external high-pressure air source and is equipped with an airflow jet opening facing the fabric. A directional air curtain is continuously delivered through the cleaning window 12. Under the action of high-speed airflow, it can effectively blow away dust particles, fiber debris and other impurities attached to the back of the fabric, while pneumatically clearing the fabric mesh to prevent blockage. The roller adhesive cleaning unit 22 is a high-viscosity roller adhesive structure. It rolls by making line contact with the upper surface of the fabric, which can efficiently transfer fine impurities such as lint and fiber residues adhering to the surface of the fabric to the surface of the roller adhesive, achieving precise dust removal.

[0059] The cleaning module 2 also includes a fourth support frame 231, and the longitudinal adjustment unit 23 is vertically fixed on the fourth support frame 231. The longitudinal adjustment unit 23 is composed of a third adjustment frame 234, a second adjustment screw 232 and a third guide rod 233 vertically arranged on the third adjustment frame 234. The third guide rod 233 passes through the fourth support frame 231 and is slidably engaged with the fourth support frame 231. The second adjustment screw 232 passes through the fourth support frame 231 and is screwed to the fourth support frame 231.

[0060] When it is necessary to adjust the cleaning height of the pneumatic cleaning unit 21 and the roller adhesive cleaning unit 22 from the fabric, simply drive the second adjusting screw 232 to achieve the purpose of adjusting the distance between the third adjusting frame 234 and the fabric.

[0061] See Figure 8 As shown: The fixed combing guide 321 and the movable combing guide 322 are specifically long convex strips and long concave strips that cooperate with each other; when the long convex strips and long concave strips cooperate with each other, a guide gap extending along the fabric conveying direction is formed between the long convex strips and long concave strips to limit the fabric conveying path and realize the combing and guiding effect on the fabric.

[0062] The precise structural fit between the elongated convex strip and the elongated groove allows for stable and effective guidance and restriction of the fabric as it moves along the conveying path, preventing lateral shifts or wrinkles. Furthermore, by finely adjusting the contact gap between the convex strip and the groove, the resistance to fabric transmission can be precisely controlled. By appropriately reducing the gap, the fabric experiences frictional resistance as it passes through the guide gap, keeping it in a slightly taut state and effectively improving the flatness and transmission stability of the fabric during the guiding and conveying process.

[0063] This invention can not only efficiently remove surface impurities from fabrics, but also ensure that the fabric is always in the best combed state.

[0064] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A device for detecting the air permeability of textile fabrics after drying, characterized in that, include: The guiding module is equipped with a guide frame for the fabric to pass through and a cleaning window that runs longitudinally through the guide frame; A cleaning module is horizontally mounted on the guide module with its cleaning end passing through a cleaning window and facing the fabric; the cleaning module is equipped with a pneumatic cleaning part and a roller cleaning part arranged along the guiding direction of the guide module; A combing module is located at the discharge port of the guide module; the combing module has four sets of combing units that are opposite to each other in pairs, and each pair of combing units opposite to each other constitutes a horizontal combing unit and a vertical combing unit respectively. The air permeability testing module is centrally located in the middle of the combing module; The longitudinal combing unit is provided with a fixed combing guide and a movable combing guide that can be relatively close to or away from the fixed combing guide. It also includes a second support frame that can horizontally support the fixed combing guide and an adjustment unit that can drive the movable combing guide to longitudinally move closer to or away from the fixed combing guide. The combing module also includes a synchronous linear driver capable of synchronously driving the transverse combing units to move closer to each other.

2. The air permeability testing device for textile fabrics after drying according to claim 1, characterized in that, The synchronous linear driver is horizontally positioned across the top of the transverse combing unit, and its driving end is connected to the transverse combing unit for transmission.

3. The air permeability testing device for textile fabrics after drying according to claim 1, characterized in that, The adjustment unit is provided with a first adjustment frame that can slide longitudinally and a spring that can continuously support the first adjustment frame, as well as an adjustment knob that can freely adjust the supporting stroke of the spring; When the adjustment knob is turned clockwise, the first adjustment frame rises vertically; when the adjustment knob is turned counterclockwise, the first adjustment frame descends vertically.

4. The air permeability testing device for textile fabrics after drying according to claim 1, characterized in that, The combing module also includes a tensioning unit capable of continuously tensioning the fabric to be tested. The tensioning unit is horizontally arranged along the long side of the longitudinal combing unit on the side of the longitudinal combing unit near the outlet of the cleaning module.

5. The air permeability testing device for textile fabrics after drying according to claim 1, characterized in that, The guiding module also includes a third support frame capable of providing horizontal support for the guide frame; The third support frame is vertically fixed to the bottom of the guide frame; The guide frame is a hollow rectangular frame with openings at both ends, and its internal space forms a guide channel for the fabric to pass through. The cleaning windows are longitudinally opened through the guide frame and are arranged at equal intervals along the short side of the guide frame.

6. The air permeability testing device for textile fabrics after drying according to claim 1, characterized in that, The cleaning module also includes a longitudinal adjustment unit capable of adjusting the cleaning distance between the pneumatic cleaning unit and the roller adhesive cleaning unit and the fabric; The longitudinal adjustment unit is horizontally mounted on the guide frame along the long side of the guide frame; Both the pneumatic cleaning unit and the roller-adhesive cleaning unit are horizontally positioned below the longitudinal adjustment unit.

7. The air permeability testing device for textile fabrics after drying according to claim 1, characterized in that, The fixed combing guide and the movable combing guide are specifically long convex strips and long concave strips that cooperate with each other; When the long convex strip and the long concave strip cooperate with each other, a guide gap is formed between the long convex strip and the long concave strip, which extends along the fabric conveying direction to limit the fabric conveying path and realize the combing and guiding effect on the fabric.

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