Fabric breathability detection device

Abstract

The invention relates to the technical field of air permeability detection devices, in particular to a fabric air permeability detection device which comprises a rack, a detection table, an upper measurement mechanism and a lower measurement mechanism. The detection table is mounted on the rack; the upper measuring mechanism and the lower measuring mechanism are located on the upper side and the lower side of the detection table respectively. A flattening mechanism is arranged on the detection table; when the fabric is placed on the detection table, the smoothing mechanism stretches the four sides of the fabric, so that wrinkles on the fabric are pulled open; by arranging the mounting block and the smoothing roller, the smoothing roller moves on the surface of the fabric, in the moving process, the fabric is pulled, so that wrinkles or bends on the fabric are stretched, meanwhile, a pressure sensor, a winding coil and a magnet block are arranged, the stretching acting force of the smoothing roller on the fabric in the moving process of the smoothing roller is detected, and the fabric is stretched. The condition that the pores of the fabric are enlarged due to excessive stretching is prevented while the wrinkles or the bends are smoothed.

Description

Technical Field

[0001] The present invention relates to the technical field of air permeability detection devices, and in particular to a fabric air permeability detection device. Background Art

[0002] Fabric air permeability testing is an important test method for evaluating the air permeability of fabrics. Its purpose is to measure the ability of fabrics to allow air to pass under certain conditions. This performance is crucial for many application scenarios. For example, in clothing manufacturing, it affects the wearing comfort and heat dissipation effect; in functional textiles, it determines its protective performance and applicability for special purposes; Fabric air permeability testing usually uses a constant pressure flow measurement method or a constant flow pressure difference measurement method to detect the flow rate of gas passing through the fabric or the pressure generated; During the process of fabric air permeability testing, the fabric is transmitted to the testing device and squeezed, resulting in wrinkles or creases on the fabric. The wrinkles will change the pore structure and distribution of the fabric, causing changes in the air passage path, thereby affecting the air flow, making the detected air permeability data inaccurate, and thus causing limitations.

[0003] To this end, we propose a fabric air permeability detection device. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a fabric air permeability detection device, which overcomes the deficiencies in the prior art and aims to solve the problems in the background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a fabric air permeability detection device, comprising: A frame, a testing platform, an upper measuring mechanism and a lower measuring mechanism; the testing platform is installed on the frame; the upper measuring mechanism and the lower measuring mechanism are respectively located at the upper and lower sides of the testing platform; The testing table is provided with a smoothing mechanism; when the fabric is placed on the testing table, the smoothing mechanism stretches the four sides of the fabric so that the wrinkles on the fabric are opened.

[0006] Preferably, the smoothing mechanism includes a mounting block, a smoothing roller and a moving block; the mounting block is slidably connected to both sides of the detection platform, and a moving groove is provided on the mounting block; a telescopic electric push rod is fixedly connected between the detection platform and the mounting block; a pair of moving blocks are slidably connected in the moving groove; a moving motor is fixedly connected at both ends of the moving groove; a screw rod which is threadedly matched with the moving block is fixedly connected to the output end of the moving motor; the smoothing roller is installed on the moving blocks on the two mounting blocks.

[0007] Preferably, a sliding groove is provided on the moving block; a rotating seat is slidably connected in the sliding groove, and a pressure sensor is fixedly connected in the sliding groove; a connecting spring is fixedly connected to the pressure sensor; the other end of the connecting spring is fixedly connected to the rotating seat; the smoothing roller is rotatably connected to the rotating seat; a magnet block is circumferentially fixed in the smoothing roller; and a winding coil is fixedly connected to the rotating seat.

[0008] Preferably, the four corners of the detection platform are rotatably connected with fixing clamps; the four corners of the detection platform are hinged with clamping motors; and the output end of the clamping motor is fixedly connected to the fixing clamps.

[0009] Preferably, the detection platform is rotatably connected to the frame; a steering motor is fixedly connected to the frame; a steering gear is fixedly connected to the output end of the steering motor; and a gear ring meshing with the steering gear is fixedly connected to the detection platform.

[0010] By setting up a mounting block and a smoothing roller, the smoothing roller is made to move on the surface of the fabric, and in the process of movement, the fabric is pulled so that the wrinkles or bends on the fabric are stretched open. At the same time, a pressure sensor, a winding coil and a magnet block are set to detect the force of the smoothing roller on the fabric during its movement, so as to ensure that the wrinkles or bends are smoothed out while preventing excessive stretching that causes the pores in the fabric to become larger.

[0011] Preferably, a sliding groove is provided on the detection platform; a sliding block is symmetrically slidably connected in the sliding groove; a lifting block is slidably connected to the sliding block; and a fixing pin is fixedly connected to the lifting block.

[0012] Preferably, a lifting groove is provided on the detection platform; the lifting groove is connected to the sliding groove, a lifting plate is slidably connected in the lifting groove, a lifting electric push rod is fixedly connected in the lifting groove; the output end of the lifting electric push rod is fixedly connected to the lifting plate.

[0013] The fabric is fixed by a fixing needle after the fabric is smoothed for the first time, and then the testing platform and the fabric are rotated to smooth the fabric longitudinally. The fixing needle prevents the fabric from recovering wrinkles or bends due to its own elasticity during the interval between the two smoothings, thereby ensuring the actual use effect of the present invention.

[0014] Preferably, the upper measuring mechanism and the lower measuring mechanism are both fixedly connected with a clamping ring; an annular groove is provided on the clamping ring; an annular corrugated block is slidably connected in the annular groove, and a clamping electric push rod is fixedly connected in the annular groove; the output end of the clamping electric push rod is fixedly connected to the annular corrugated block; the end surfaces of the two annular corrugated blocks that are close to each other are arranged in a corrugated shape that can fit together.

[0015] Preferably, the lower end of the clamping ring on the upper measuring mechanism is inclined and the edge thickness is smaller than the inner thickness; the upper end of the clamping ring on the lower measuring mechanism is inclined and the edge thickness is smaller than the inner thickness.

[0016] Beneficial effects of the present invention: 1. The present invention sets a mounting block and a smoothing roller so that the smoothing roller moves on the surface of the fabric, and during the movement, the fabric is pulled so that the wrinkles or bends on the fabric are stretched open. At the same time, a pressure sensor, a winding coil and a magnet block are set to detect the force of the smoothing roller on the fabric during the movement of the smoothing roller, so as to ensure that the wrinkles or bends are smoothed out while preventing excessive stretching that causes the pores of the fabric to become larger.

[0017] 2. The present invention fixes the fabric after the first smoothing by using a fixing needle, and then rotates the testing platform and the fabric to smooth the fabric in the longitudinal direction. The fixing needle prevents the fabric from recovering wrinkles or bends due to its own elasticity during the interval between the two smoothings, thereby ensuring the actual use effect of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the present invention from another perspective; Figure 3 for Figure 1 The enlarged view of point A in the middle; Figure 4 for Figure 1 The enlarged view of point B in the middle; Figure 5 for Figure 2 Enlarged view of point C in the middle; Figure 6 It is a partial cross-sectional view of the mounting block, the moving block, the rotating seat and the smoothing roller in the present invention; Figure 7 It is a cross-sectional view of the detection platform, the sliding block and the lifting block in the present invention; Figure 8 It is a cross-sectional view of the clamping ring and the annular corrugated block on the upper measuring mechanism and the lower measuring mechanism of the present invention.

[0019] In the figure: 1. frame; 11. detection table; 12. upper measuring mechanism; 13. lower measuring mechanism; 21. mounting block; 22. smoothing roller; 23. moving block; 24. moving groove; 25. moving motor; 26. sliding groove; 27. rotating seat; 28. pressure sensor; 29. ​​connecting spring; 3. magnet block; 31. winding coil; 32. fixing clamp; 33. clamping motor; 34. steering motor; 35. steering gear; 36. gear ring; 4. sliding groove; 41. sliding block; 42. lifting block; 43. fixing needle; 44. lifting groove; 45. lifting plate; 46. lifting electric push rod; 5. clamping ring; 51. annular corrugated block; 52. clamping electric push rod; 53. annular groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Embodiment 1: Refer to the attached specification Figure 1 and 2 , a fabric air permeability detection device, comprising: A frame 1, a testing platform 11, an upper measuring mechanism 12 and a lower measuring mechanism 13; the testing platform 11 is installed on the frame 1; the upper measuring mechanism 12 and the lower measuring mechanism 13 are respectively located at the upper and lower sides of the testing platform 11; A smoothing mechanism is provided on the testing table 11; when the fabric is placed on the testing table 11, the smoothing mechanism stretches the four sides of the fabric so that the wrinkles on the fabric are pulled apart.

[0022] Refer to the instruction manual Figure 1 , 3 , 4, 5 and 6, in the present invention, the smoothing mechanism includes a mounting block 21, a smoothing roller 22 and a moving block 23; the mounting block 21 is slidably connected to both sides of the detection platform 11, and a moving groove 24 is provided on the mounting block 21; a telescopic electric push rod is fixedly connected between the detection platform 11 and the mounting block 21; a pair of moving blocks 23 are slidably connected in the moving groove 24; both ends of the moving groove 24 are fixedly connected to a moving motor 25; the output end of the moving motor 25 is fixedly connected to a screw rod that is threadedly matched with the moving block 23; the smoothing roller 22 is installed on the moving blocks 23 on the two mounting blocks 21.

[0023] In the present invention, a sliding groove 26 is provided on the moving block 23; a rotating seat 27 is slidably connected in the sliding groove 26, and a pressure sensor 28 is fixedly connected in the sliding groove 26; a connecting spring 29 is fixedly connected to the pressure sensor 28; the other end of the connecting spring 29 is fixedly connected to the rotating seat 27; the smoothing roller 22 is rotatably connected to the rotating seat 27; a magnet block 3 is circumferentially fixed in the smoothing roller 22; and a winding coil 31 is fixedly connected to the rotating seat 27.

[0024] In the present invention, the four corners of the testing platform 11 are rotatably connected with fixing clamps 32 ; the four corners of the testing platform 11 are hinged with clamping motors 33 ; and the output end of the clamping motor 33 is fixedly connected to the fixing clamp 32 .

[0025] In the present invention, the testing platform 11 is rotatably connected to the frame 1; a steering motor 34 is fixedly connected to the frame 1; a steering gear 35 is fixedly connected to the output end of the steering motor 34; and a gear ring 36 meshing with the steering gear 35 is fixedly connected to the testing platform 11.

[0026] In the present invention, the fabric to be tested is placed on the testing table 11, and then the telescopic electric push rod drives the mounting block 21 downward, so that the smoothing roller 22 contacts the fabric on the testing table 11, and then the moving motors 25 on both sides of the mounting block 21 rotate, so that the moving block 23 moves with the smoothing roller 22, so that the smoothing roller 22 smoothes the wrinkles on the fabric during the movement; In the present invention, when there are creases on the fabric, and the creases on the fabric cause the fabric to bend, the smoothing roller 22 moves on the fabric, and current is passed through the winding coil 31 on the rotating seat 27, and magnetic force is generated between the winding coil 31 and the magnet block 3, so that the smoothing roller 22 encounters resistance when rotating, so that the smoothing roller 22 pulls the fabric to move, so that the bend of the fabric is flattened. After the fabric is flattened, as the smoothing roller 22 continues to move, the rotating seat 27 squeezes the pressure sensor 28 through the connecting spring 29, so that the pressure sensor 28 is subjected to resistance. The pressure increases, thereby stopping the current from being supplied to the winding coil 31, so that the resistance of the smoothing roller 22 disappears. When the smoothing roller 22 moves to the edge of the fabric, the clamping motor 33 drives the fixed clamp 32 to rotate and clamp the fabric. Then the mounting block 21 moves upward with the smoothing roller 22, and the steering motor 34 drives the detection table 11 to rotate 90 degrees. Then the above operation is performed again. When the smoothing roller 22 approaches the fixed clamp 32, the fixed clamp 32 releases the fabric and clamps the fabric again, so that the present invention smoothes the wrinkles and bends on the fabric. The present invention sets a mounting block 21 and a smoothing roller 22 so that the smoothing roller 22 moves on the surface of the fabric, and during the movement, pulls the fabric so that the wrinkles or bends on the fabric are stretched open. At the same time, a pressure sensor 28, a winding coil 31 and a magnet block 3 are set to detect the force of the smoothing roller 22 on the fabric during its movement, so as to ensure that the wrinkles or bends are smoothed out while preventing excessive stretching that causes the pores of the fabric to become larger.

[0027] Embodiment 2: Based on Embodiment 1, refer to the attached Figure 7 In the present invention, a slide groove 4 is provided on the testing platform 11; a slide block 41 is symmetrically slidably connected in the slide groove 4; a lifting block 42 is slidably connected to the slide block 41; and a fixing pin 43 is fixedly connected to the lifting block 42.

[0028] In the present invention, a lifting slot 44 is provided on the testing platform 11; the lifting slot 44 is connected to the sliding slot 4, a lifting plate 45 is slidably connected in the lifting slot 44, and a lifting electric push rod 46 is fixedly connected in the lifting slot 44; the output end of the lifting electric push rod 46 is fixedly connected to the lifting plate 45.

[0029] In the present invention, a sliding block 41 and a lifting block 42 are arranged on the inspection table 11, so that after the smoothing roller 22 smoothes the fabric for the first time, the inspection table 11 rotates, and then the lifting electric push rod 46 pushes the lifting plate 45 upward, so that the lifting plate 45 pushes the lifting block 42 upward, so that the fixing pin 43 on the lifting block 42 moves upward and pierces the fabric, thereby fixing the fabric, and the longitudinally arranged sliding groove 4 fixes the fabric in the transverse direction. When the smoothing roller 22 moves along the direction of the sliding groove 4, it can push the sliding block 41 through the fixing pin 43, so that the present invention fixes the fabric in the transverse direction after the smoothing roller 22 smoothes the fabric in the transverse direction for the first time, and then smoothes the fabric in the longitudinal direction for the second time, so that the fabric in the longitudinal direction is smoothed, so in the interval time between the two smoothing, the fabric will not recover wrinkles due to its own elasticity; The present invention fixes the fabric after the first smoothing by using the fixing needle 43, and then rotates the detection platform 11 and the fabric to smooth the fabric in the longitudinal direction. The fixing needle 43 prevents the fabric from recovering wrinkles or bends due to its own elasticity during the interval between the two smoothing, thereby ensuring the actual use effect of the present invention.

[0030] In the present invention, the upper measuring mechanism 12 and the lower measuring mechanism 13 are both fixedly connected with a clamping ring 5; an annular groove 53 is opened on the clamping ring 5; an annular corrugated block 51 is slidably connected in the annular groove 53, and a clamping electric push rod 52 is fixedly connected in the annular groove 53; the output end of the clamping electric push rod 52 is fixedly connected to the annular corrugated block 51; the end surfaces of the two annular corrugated blocks 51 that are close to each other are arranged in a corrugated shape that can fit each other.

[0031] In the present invention, the lower end of the clamping ring 5 on the upper measuring mechanism 12 is tilted and the edge thickness is smaller than the inner thickness; the upper end of the clamping ring 5 on the lower measuring mechanism 13 is tilted and the edge thickness is smaller than the inner thickness.

[0032] In the present invention, the upper measuring mechanism 12 and the lower measuring mechanism 13 are in contact with the upper and lower surfaces of the thicker fabric. Although the annular portion of the fabric in contact is squeezed, gas can still be transmitted, causing leakage and thus affecting the result of the air permeability test. After the upper measuring mechanism 12 and the lower measuring mechanism 13 contact the fabric from top to bottom, the clamping electric push rod 52 pushes the annular corrugated block 51, so that the two annular corrugated blocks 51 clamp the fabric on the upper and lower sides of the fabric, and the fabric fits the corrugated shape of the annular corrugated blocks 51; on the one hand, the clamping of the annular corrugated blocks 51 reduces the internal gap of the fabric after being squeezed, thereby reducing the air permeability measurement; on the other hand, the fabric is pressed into a corrugated shape, the clamped part of the fabric increases, and the path of gas leakage through the corrugated part of the fabric increases, making it difficult for the gas to pass through, and thus the present invention can reduce the leakage of gas from the part where the upper measuring mechanism 12 and the lower measuring mechanism 13 contact the fabric, thereby improving the accuracy of the detection result of the present invention; In the present invention, the clamping ring 5 is arranged at an angle, so when the upper measuring mechanism 12 and the lower measuring mechanism 13 are in contact with and squeeze and clamp the fabric, the clamping ring 5 does not contact the fabric. Therefore, when the annular corrugated block 51 clamps the fabric, the fabric on the outside of the annular corrugated block 51 is stretched, thereby not affecting the fabric clamped by the upper measuring mechanism 12 and the lower measuring mechanism 13.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected; the scope of the present invention to be protected is defined by the attached claims and their equivalents.

Claims

1. A fabric air permeability detection device, characterized in that: include: A frame (1), a testing platform (11), an upper measuring mechanism (12) and a lower measuring mechanism (13); the testing platform (11) is mounted on the frame (1); the upper measuring mechanism (12) and the lower measuring mechanism (13) are respectively located on the upper and lower sides of the testing platform (11); The testing platform (11) is provided with a smoothing mechanism; when the fabric is placed on the testing platform (11), the smoothing mechanism stretches the four sides of the fabric so that the wrinkles on the fabric are pulled apart; The smoothing mechanism comprises a mounting block (21), a smoothing roller (22) and a moving block (23); the mounting block (21) is slidably connected to two sides of the detection platform (11), and a moving groove (24) is provided on the mounting block (21); a telescopic electric push rod is fixedly connected between the detection platform (11) and the mounting block (21); a pair of the moving blocks (23) are slidably connected in the moving groove (24); a moving motor (25) is fixedly connected to both ends of the moving groove (24); a screw rod threadedly matched with the moving block (23) is fixedly connected to the output end of the moving motor (25); the smoothing roller (22) is mounted on the moving blocks (23) on the two mounting blocks (21); The movable block (23) is provided with a sliding groove (26); a rotating seat (27) is slidably connected in the sliding groove (26); a pressure sensor (28) is fixedly connected in the sliding groove (26); a connecting spring (29) is fixedly connected to the pressure sensor (28); the other end of the connecting spring (29) is fixedly connected to the rotating seat (27); the smoothing roller (22) is rotatably connected to the rotating seat (27); a magnet block (3) is circumferentially fixedly connected in the smoothing roller (22); a winding coil (31) is fixedly connected to the rotating seat (27); The four corners of the testing platform (11) are rotatably connected to fixed clamps (32); the four corners of the testing platform (11) are hingedly connected to clamping motors (33); the output end of the clamping motor (33) is fixedly connected to the fixed clamps (32); The detection platform (11) is rotatably connected to the frame (1); a steering motor (34) is fixedly connected to the frame (1); an output end of the steering motor (34) is fixedly connected to a steering gear (35); and a gear ring (36) meshing with the steering gear (35) is fixedly connected to the detection platform (11).

2. A fabric air permeability detection device according to claim 1, characterized in that: The detection platform (11) is provided with a sliding groove (4); a sliding block (41) is symmetrically slidably connected in the sliding groove (4); a lifting block (42) is slidably connected to the sliding block (41); and a fixing pin (43) is fixedly connected to the lifting block (42).

3. A fabric air permeability detection device according to claim 2, characterized in that: The detection platform (11) is provided with a lifting groove (44); the lifting groove (44) is connected to the sliding groove (4); a lifting plate (45) is slidably connected in the lifting groove (44); a lifting electric push rod (46) is fixedly connected in the lifting groove (44); an output end of the lifting electric push rod (46) is fixedly connected to the lifting plate (45).

4. A fabric air permeability detection device according to claim 3, characterized in that: The upper measuring mechanism (12) and the lower measuring mechanism (13) are both fixedly connected with a clamping ring (5); an annular groove (53) is provided on the clamping ring (5); an annular corrugated block (51) is slidably connected in the annular groove (53), and a clamping electric push rod (52) is fixedly connected in the annular groove (53); an output end of the clamping electric push rod (52) is fixedly connected to the annular corrugated block (51); and the end surfaces of the two annular corrugated blocks (51) that are close to each other are arranged in a corrugated shape that can fit together.

5. A fabric air permeability detection device according to claim 4, characterized in that: The lower end of the clamping ring (5) on the upper measuring mechanism (12) is arranged obliquely and the edge thickness is smaller than the inner thickness; the upper end of the clamping ring (5) on the lower measuring mechanism (13) is arranged obliquely and the edge thickness is smaller than the inner thickness.

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