Novel yarn textile fabric light transmission detection device

Abstract

The invention discloses a novel yarn textile fabric light transmission detection device, and relates to the technical field of fabric detection equipment. The device comprises a supporting box, a light receptor is installed in the supporting box, a rotating box is arranged in the supporting box, and a light emitter is fixedly connected to the surface of the rotating box; a rotating assembly is arranged in the supporting box. Through cooperative control of the rotating assembly and the stretching assembly, the precision and reliability of light transmission detection are remarkably improved, a first motor in the rotating assembly drives a gear set to drive a rotating box to accurately rotate, a light emitter can alternately switch the detection angle, and the light transmission detection accuracy is improved by combining the emission functions of three groups of light rays with different colors. The transmission characteristic of the cloth to polychromatic light can be comprehensively evaluated, detection deviation caused by a single light source is avoided, the stretching assembly pushes a push plate and a moving shaft through a cam to drive a material roller to horizontally move and stretch the cloth, a loose area of the cloth is eliminated, the tension is kept uniform, and it is ensured that detection data truly reflect the actual light transmission performance of the cloth.

Description

Technical Field

[0001] The invention belongs to the technical field of fabric detection equipment, and in particular relates to a novel device for detecting light transmittance of yarn textile fabrics. Background Art

[0002] Light transmittance testing of textile fabrics is a key method for evaluating their light-blocking, light-transmitting or translucent properties by quantifying the degree of light penetration through the fabric. Common tests include: Light transmittance test: using a spectrophotometer to measure the penetration ratio of light of a specific wavelength. The higher the value, the stronger the light transmittance; Haze measurement: evaluating the degree of light scattering, reflecting the hazy effect of the fabric (such as curtains and sun-protective clothing); Visual evaluation: observing the uniformity of light transmittance through comparison with a standard light box. Application areas include clothing (such as sun-protective clothing), home furnishings (curtains, sunshades) and industrial fabrics to ensure that the product meets light-blocking, privacy protection or light-transmitting requirements.

[0003] A Chinese patent application (or patent) with publication number CN211043138U discloses a device for detecting the light transmittance of textile fabrics, including a lighting chamber and a detection chamber. The lighting chamber and one end of the detection chamber are rotatably connected by a hinge, and the other end of the lighting chamber and the detection chamber are movably connected by a snap-fit ​​assembly. The inner bottom of the lighting chamber is fixedly connected to a lighting mechanism, the interior of the detection chamber is fixedly connected to an illuminometer, and the bottom ends of the left and right side walls of the detection chamber are movably connected to a pressing assembly. This solves the problem that it is difficult to detect subtle differences in the light transmittance of fabrics by observing with the naked eye, and it is necessary to use an illuminometer for detection. However, it takes a long time to send the fabric to a professional detection agency for detection, and on-site detection will cause differences in the detection results due to the lighting environment on site, affecting the actual detection results.

[0004] However, the above device still has the following problems during implementation:

[0005] The light transmittance detection device for textile fabrics cannot accurately control the tension state of the fabric. In actual testing, when the fabric tension is too loose, the pores between the fibers shrink and become smaller, and the light penetration path is blocked, resulting in low light transmittance; and when the fabric is over-stretched, the fiber structure deforms, the pore size increases, and the light transmittance will increase abnormally. More importantly, if the tension distribution in different areas of the fabric is uneven (such as local tightness differences), the pore size changes at different positions will be inconsistent, causing fluctuations in the light transmittance data, seriously affecting the repeatability and accuracy of the test results, and it is difficult to truly reflect the actual light transmittance performance of the fabric.

[0006] To this end, we provide a new type of yarn textile fabric light transmittance detection device to solve the above problems. Summary of the Invention

[0007] The purpose of the present invention is to provide a new type of yarn textile fabric light transmittance detection device. Through the cooperation of a rotating component, a supporting component and a stretching component, it solves the problem in the prior art that the tension state of the fabric cannot be accurately controlled and it is difficult to truly reflect the actual light transmittance performance of the fabric.

[0008] To solve the above technical problems, the present invention is implemented through the following technical solutions.

[0009] The present invention is a novel device for detecting the light transmittance of a yarn textile fabric, comprising a support box, a light receiver installed inside the support box, a rotating box provided inside the support box, a light emitter fixedly connected to the surface of the rotating box; a rotating assembly provided inside the support box, the rotating assembly comprising a rotating shaft installed on one side of the rotating box, a first gear installed on the surface of the rotating shaft, a second gear meshed with the bottom of the first gear, and the light emitter is alternately adjusted by the rotating assembly; a support assembly provided inside the support box, the support assembly comprising a support frame installed inside the support box, a winding roller movably connected to the inside of the support frame, a cloth sleeved on the surface of the winding roller, an adjusting frame provided on one side of the support frame, a material roller movably connected to the inside of the adjusting frame, and the cloth is wound by the support assembly; a stretching assembly provided inside the support box, the stretching assembly comprising a cam installed on the surface of the rotating shaft, a push plate slidably connected to the top of the cam, a protrusion installed on the top of the push plate, and a movable shaft slidably connected to the top of the protrusion, and the material roller is pushed to move and pull the cloth through the stretching assembly.

[0010] The present invention is further configured such that the rotating assembly further includes a first motor installed inside the supporting box, and an output end of the first motor passes through the supporting box and is fixedly connected to the second gear.

[0011] The present invention is further configured such that the support assembly also includes a second motor installed on one side of the support frame, the output end of the second motor is fixedly connected to the winding roller, a third motor installed on one side of the adjustment frame, the output end of the third motor is fixedly connected to the material roller, and the other end of the cloth is fixedly connected to the material roller.

[0012] The present invention is further configured such that there are three groups of light emitters, which are respectively fixed on the front, rear and bottom of the rotating box, and the three groups of light emitters correspond to three groups of light of different colors. There are three groups of cams, and the three groups of cams are all fixed on the surface of the rotating shaft, and the angle between two adjacent groups of cams is ninety degrees.

[0013] The present invention is further configured such that a vertical rod is slidably connected to the interior of the push plate, the bottom of the vertical rod is fixedly connected to the inner wall of the support box, a first spring is sleeved on the surface of the vertical rod, and one end of the first spring is fixedly connected to the push plate.

[0014] The present invention is further configured such that a vertical plate is fixedly connected to one side of the support frame, a horizontal bar is slidably connected inside the vertical plate, a second spring is sleeved on the surface of the horizontal bar, one end of the second spring is fixedly connected to the vertical plate, the other end of the horizontal bar is fixedly connected to a connecting plate, and one side of the connecting plate is fixedly connected to the adjustment frame.

[0015] The present invention is further configured such that a telescopic rod is fixedly connected to the bottom of the adjusting frame, a moving rod is sleeved on the surface of the telescopic rod, the other end of the moving rod is fixedly connected to the moving shaft, an internal threaded tube is provided on the top of the moving shaft, the top and bottom of the internal threaded tube are both threadedly connected to screws, the opposite ends of the two groups of screws are respectively fixedly connected to the adjusting frame and the moving shaft, and the threads on the surfaces of the two groups of screws are opposite.

[0016] The present invention is further configured such that an air permeability detection component is provided inside the support box, and the air permeability detection component includes a ventilation pipe connected to one side of the rotating box, an exhaust pipe connected to the top of the ventilation pipe, a fixed pipe connected to the top of the support box, and an air volume sensor installed inside the fixed pipe.

[0017] The present invention is further configured such that an exhaust fan is installed inside the ventilation pipe, a heat dissipation fin is installed on one side of the light emitter, and the other end of the heat dissipation fin passes through the interior of the ventilation pipe.

[0018] The present invention is further configured such that the surface of the rotating shaft is movably connected to the inner wall of the support box via a first bearing, and the surface of the ventilation pipe is movably connected to the inner wall of the support box via a second bearing.

[0019] The present invention has the following beneficial effects.

[0020] 1. The present invention significantly improves the accuracy and reliability of light transmittance detection through the coordinated control of the rotating component and the stretching component. The first motor in the rotating component drives the gear set to drive the rotating box to rotate precisely, so that the light emitter can alternately switch the detection angle (front, back, and bottom). Combined with the emission function of three groups of different color lights (red, green, and blue), it can comprehensively evaluate the transmittance characteristics of the fabric to multi-color light, avoiding the detection deviation caused by a single light source. The stretching component pushes the push plate and the moving shaft through the cam, driving the material roller to move horizontally to stretch the fabric, eliminating the slack area of ​​the fabric and maintaining uniform tension, solving the problem of misjudgment of light transmittance caused by uneven tightness of the fabric in traditional devices, and ensuring that the test data truly reflects the actual light transmittance performance of the fabric.

[0021] 2. The present invention achieves a simultaneous improvement in detection efficiency and functional diversity through the innovative design of the support component and the air permeability detection component. The second motor and the third motor in the support component independently control the rotation of the winding roller and the material roller respectively, and the self-locking function can accurately lock the tension state of the fabric. Combined with the buffer design of the vertical rod and the first spring, it not only ensures the stability of the fabric winding, but also avoids damage to the fabric caused by sudden changes in tensile force. The air permeability detection component can measure the air permeability of the fabric while detecting light transmittance through the linkage of the ventilation pipe, exhaust fan and air volume sensor. The air flow driven by the exhaust fan can also cool the heat dissipation fins of the light emitter, thereby extending the life of the light source. This not only improves the detection efficiency, but also expands the versatility of the device, meeting the needs of rapid detection of the comprehensive performance of fabrics in industrial production.

[0022] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments.

[0024] Figure 1 This is a three-dimensional diagram of a new type of yarn textile fabric light transmittance detection device.

[0025] Figure 2 This is a schematic diagram of the surface structure of the rotating box in a new yarn textile fabric transmittance detection device.

[0026] Figure 3 This is a schematic diagram of the internal structure of the support frame in a new type of yarn textile fabric transmittance detection device.

[0027] Figure 4 This is a partial cross-sectional view of a support frame in a new type of yarn textile fabric light transmittance detection device.

[0028] Figure 5 This is a cross-sectional view of an internally threaded tube in a novel device for detecting light transmittance of yarn and textile fabrics.

[0029] Figure 6 This is a cross-sectional view of a rotating box in a new device for detecting light transmittance of yarn and textile fabrics.

[0030] Figure 7 This is a cross-sectional view of a ventilation tube in a novel device for detecting light transmittance of yarn and textile fabrics.

[0031] Figure 8 This is a schematic diagram of the connection between the protrusion and the moving shaft in a new device for detecting light transmittance of yarn textile fabrics.

[0032] Figure 9This is a schematic diagram of a cam pushing the fabric to stretch in a new type of yarn textile fabric transmittance detection device.

[0033] Figure 10 This is the front view of a new type of yarn textile fabric light transmittance detection device.

[0034] In the accompanying drawings: 1. Support box; 2. Light receiver; 3. Rotating box; 4. Light emitter; 5. Rotating assembly; 501. Rotating shaft; 502. First gear; 503. Second gear; 6. Support assembly; 601. Support frame; 602. Winding roller; 603. Fabric; 604. Adjusting frame; 605. Material roller; 7. Stretching assembly; 701. Cam; 702. Push plate; 703. Bump; 704. Moving shaft; 504. First motor; 606, second motor; 607, third motor; 8, vertical rod; 9, first spring; 10, vertical plate; 11, horizontal rod; 12, second spring; 13, connecting plate; 14, telescopic rod; 15, moving rod; 16, internally threaded tube; 17, screw; 18, air permeability detection assembly; 1801, ventilation duct; 1802, exhaust duct; 1803, fixed tube; 1804, air volume sensor; 1805, exhaust fan; 19, heat sink fin. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] Example 1

[0037] See also Figures 1-10The present invention is a novel device for detecting light transmittance of yarn textile fabrics, comprising a support box 1, a light receiver 2 installed inside the support box 1, a rotating box 3 provided inside the support box 1, a light emitter 4 fixedly connected to the surface of the rotating box 3; a rotating assembly 5 provided inside the support box 1, the rotating assembly 5 comprising a rotating shaft 501 installed on one side of the rotating box 3, a first gear 502 installed on the surface of the rotating shaft 501, a second gear 503 engaged with the bottom of the first gear 502, and the light emitter 4 is alternately adjusted by the rotating assembly 5; a support assembly 6 provided inside the support box 1, the support assembly 6 comprising a support frame 601 installed inside the support box 1, an movable A winding roller 602 is movably connected to the inside of the support frame 601, a cloth 603 is sleeved on the surface of the winding roller 602, an adjusting frame 604 is arranged on one side of the support frame 601, and a material roller 605 is movably connected to the inside of the adjusting frame 604, and the cloth 603 is wound through the support component 6; a stretching component 7 is provided inside the support box 1, and the stretching component 7 includes a cam 701 installed on the surface of the rotating shaft 501, a push plate 702 slidably connected to the top of the cam 701, a protrusion 703 installed on the top of the push plate 702, and a movable shaft 704 slidably connected to the top of the protrusion 703, and the material roller 605 is pushed by the stretching component 7 to move and pull the cloth 603.

[0038] Specifically: the first gear 502 and the second gear 503 are engaged in transmission to achieve precise angle adjustment of the rotating box 3, ensuring that the light emitter 4 can alternately switch the detection position, improving the detection efficiency and angle coverage range, the support frame 601 fixes the winding roller 602 and the material roller 605, and cooperates with the adjustment frame 604 to achieve stable retraction and tension adjustment of the fabric 603, avoiding the misjudgment of transmittance caused by loose or too tight fabric in traditional devices, and the adjustment frame 604 is linked with the movable shaft 704 through the protrusion 703 to drive the material roller 605 to move horizontally to stretch the fabric 603, eliminating the loose area of ​​the fabric, ensuring uniform tension during detection, and improving the accuracy of the transmittance data, the first motor 504 drives the second gear 503 to rotate, amplifies the torque through the gear set, provides stable and controllable rotational power for the rotating box 3, and ensures that there is no jitter when the light emitter 4 switches angles.

[0039] Example 2

[0040] See also Figures 1-10On the basis of Example 1, the rotating assembly 5 further includes a first motor 504 installed inside the support box 1, the output end of the first motor 504 passes through the support box 1 and is fixedly connected to the second gear 503, the supporting assembly 6 further includes a second motor 606 installed on one side of the supporting frame 601, the output end of the second motor 606 is fixedly connected to the winding roller 602, and a third motor 607 installed on one side of the adjusting frame 604, the output end of the third motor 607 is fixedly connected to the material roller 605, and the other end of the cloth 603 is fixedly connected to the material roller 605 is fixedly connected, there are three groups of light emitters 4, which are respectively fixed on the front side, rear side and bottom of the rotating box 3. The three groups of light emitters 4 correspond to three groups of light of different colors. There are three groups of cams 701, and the three groups of cams 701 are all fixed on the surface of the rotating shaft 501. The angle between two adjacent groups of cams 701 is ninety degrees. The push plate 702 is internally slidably connected with a vertical rod 8, and the bottom of the vertical rod 8 is fixedly connected to the inner wall of the support box 1. The surface of the vertical rod 8 is provided with a first spring 9, and one end of the first spring 9 is fixedly connected to the push plate 702.

[0041] Specifically: the second motor 606 and the third motor 607 are both self-locking motors, which can lock the rotation of the winding roller 602 and the material roller 605. The three groups of light emitters 4 emit light of different colors (such as red, green, and blue), respectively, covering the key bands of the visible spectrum, comprehensively evaluating the transmittance characteristics of the fabric 603 to multi-color light, and avoiding detection deviations caused by a single light source. The cams 701 are evenly distributed at 90°, ensuring that each time the rotating shaft 501 rotates 90°, a group of light emitters 4 is switched, thereby improving detection efficiency. The vertical rod 8 provides vertical guidance for the push plate 702 to prevent the cam 701 from offsetting when it is pushed. The first spring 9 buffers the impact force of the push plate 702 to avoid damage to the fabric caused by sudden changes in tensile force, while assisting in resetting and extending the life of the components. The internal threaded tube 16 is connected to the adjustment frame 604 and the movable shaft 704 through a reverse thread, and the distance between the two is fine-tuned to adapt to the stretching requirements of fabrics 603 of different widths, thereby improving the versatility of the device.

[0042] Example 3

[0043] See also Figures 1-10On the basis of Example 1 and Example 2, one side of the support frame 601 is fixedly connected to the vertical plate 10, and the vertical plate 10 is slidably connected to the cross bar 11. The surface of the cross bar 11 is provided with a second spring 12, and one end of the second spring 12 is fixedly connected to the vertical plate 10, and the other end of the cross bar 11 is fixedly connected to the connecting plate 13. One side of the connecting plate 13 is fixedly connected to the adjustment frame 604, and the bottom of the adjustment frame 604 is fixedly connected to the telescopic rod 14. The surface of the telescopic rod 14 is provided with a moving rod 15, and the other end of the moving rod 15 is fixedly connected to the moving shaft 704. The top of the moving shaft 704 is provided with an internal threaded tube 16, and the top and bottom of the internal threaded tube 16 are both threadedly connected with screws 17. The opposite ends of the two sets of screws 17 are respectively connected to the adjustment frame 604 and the moving shaft 704. 04 fixed connection, the threads on the surfaces of the two sets of screws 17 are opposite, and an air permeability detection component 18 is provided inside the support box 1. The air permeability detection component 18 includes a ventilation pipe 1801 connected to one side of the rotating box 3, an exhaust pipe 1802 connected to the top of the ventilation pipe 1801, a fixed pipe 1803 connected to the top of the support box 1, and an air volume sensor 1804 installed inside the fixed pipe 1803. An exhaust fan 1805 is installed inside the ventilation pipe 1801, a heat dissipation fin 19 is installed on one side of the light emitter 4, and the other end of the heat dissipation fin 19 passes through the interior of the ventilation pipe 1801, the surface of the rotating shaft 501 is movably connected to the inner wall of the support box 1 through a first bearing, and the surface of the ventilation pipe 1801 is movably connected to the inner wall of the support box 1 through a second bearing.

[0044] Specifically: when the exhaust fan 1805 is started, it can drive the air flow and discharge the external air through the exhaust pipe 1802, and use the air volume sensor 1804 inside the pipe to detect the air flow rate through the fabric 603, so as to detect the air permeability of the fabric 603. At the same time, the flowing air can drive the heat on the surface of the heat dissipation fins 19, which can dissipate heat for the light emitter 4.

[0045] The working principle of the present invention is as follows: the staff wraps the cloth 603 to be inspected and fixes it on the surface of the material roller 605, and fixes the other end of the cloth 603 to the winding roller 602. By starting the second motor 606 to drive the winding roller 602 to rotate, the cloth 603 is wound up, and the cloth 603 is cyclically displayed on the top of the light emitter 4 to realize the function of continuous detection.

[0046] Then the first motor 504 is started, and the first motor 504 cooperates with the second gear 503 to drive the first gear 502 to rotate. The first gear 502 cooperates with the rotating shaft 501 to drive the rotating box 3 to rotate. The rotating box 3 drives the light emitter 4 to rotate ninety degrees, so that the light emitter 4 on the front side of the rotating box 3 faces upward. The rotating shaft 501 rotates and drives the cam 701 to rotate. The cam 701 pushes the push plate 702 and the protrusion 703 to move. The protrusion 703 pushes the moving shaft 704 and the adjusting frame 604 to move. The adjusting frame 604 cooperates with the material roller 605 to drive the cloth 603 to move, stretch the cloth 603, flatten the loose cloth 603, and keep it flat.

[0047] Then, the light emitter 4 is started to emit detection light, and the light receiver 2 is used to detect the light penetrating the cloth 603, thereby detecting the light transmittance of the cloth 603.

[0048] Afterwards, the first motor 504 can be started again to drive the support box 1 to rotate, so that the light emitter 4 at the bottom of the rotating box 3 rotates upward. The three groups of light emitters 4 fixed on the surface of the rotating box 3 correspond to three groups of light of different colors, which can detect the effects of light of different colors penetrating the fabric 603, thereby further improving the accuracy of the light transmittance detection of the fabric 603.

[0049] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A novel device for detecting light transmittance of yarn textile fabrics, comprising a support box (1), characterized in that: A light receiver (2) is installed inside the support box (1), a rotating box (3) is provided inside the support box (1), and a light emitter (4) is fixedly connected to the surface of the rotating box (3); A rotating assembly (5) is provided inside the supporting box (1), and the rotating assembly (5) comprises a rotating shaft (501) mounted on one side of the rotating box (3), a first gear (502) mounted on the surface of the rotating shaft (501), and a second gear (503) meshed with the bottom of the first gear (502), and the light emitter (4) is alternately adjusted by the rotating assembly (5); A support assembly (6) is provided inside the support box (1), and the support assembly (6) comprises a support frame (601) installed inside the support box (1), a winding roller (602) movably connected to the inside of the support frame (601), a cloth (603) sleeved on the surface of the winding roller (602), an adjustment frame (604) provided on one side of the support frame (601), and a material roller (605) movably connected to the inside of the adjustment frame (604), and the cloth (603) is wound through the support assembly (6); A stretching assembly (7) is provided inside the support box (1), and the stretching assembly (7) comprises a cam (701) mounted on the surface of a rotating shaft (501), a push plate (702) slidably connected to the top of the cam (701), a convex block (703) mounted on the top of the push plate (702), and a moving shaft (704) slidably connected to the top of the convex block (703). The stretching assembly (7) pushes a material roller (605) to move and pull the fabric (603).

2. The novel yarn textile fabric light transmittance detection device according to claim 1, characterized in that: The rotating assembly (5) further comprises a first motor (504) installed inside the supporting box (1); an output end of the first motor (504) passes through the supporting box (1) and is fixedly connected to the second gear (503).

3. The novel yarn textile fabric light transmittance detection device according to claim 1, characterized in that: The support assembly (6) further comprises a second motor (606) mounted on one side of the support frame (601), the output end of the second motor (606) being fixedly connected to the winding roller (602), a third motor (607) mounted on one side of the adjustment frame (604), the output end of the third motor (607) being fixedly connected to the material roller (605), and the other end of the cloth (603) being fixedly connected to the material roller (605).

4. The novel yarn textile fabric light transmittance detection device according to claim 1, characterized in that: There are three groups of light emitters (4), which are respectively fixed on the front side, the rear side and the bottom of the rotating box (3). The three groups of light emitters (4) correspond to three groups of light with different colors. There are three groups of cams (701), which are all fixed on the surface of the rotating shaft (501). The angle between two adjacent groups of cams (701) is ninety degrees.

5. The novel yarn textile fabric light transmittance detection device according to claim 1, characterized in that: The push plate (702) is internally slidably connected to a vertical rod (8), the bottom of the vertical rod (8) is fixedly connected to the inner wall of the support box (1), and a first spring (9) is sleeved on the surface of the vertical rod (8), and one end of the first spring (9) is fixedly connected to the push plate (702).

6. The novel yarn textile fabric light transmittance detection device according to claim 1, characterized in that: One side of the support frame (601) is fixedly connected to a vertical plate (10), and a cross bar (11) is slidably connected inside the vertical plate (10). A second spring (12) is sleeved on the surface of the cross bar (11), and one end of the second spring (12) is fixedly connected to the vertical plate (10). The other end of the cross bar (11) is fixedly connected to a connecting plate (13), and one side of the connecting plate (13) is fixedly connected to the adjustment frame (604).

7. The novel yarn textile fabric light transmittance detection device according to claim 1, characterized in that: The bottom of the adjustment frame (604) is fixedly connected to a telescopic rod (14), the surface of the telescopic rod (14) is sleeved with a moving rod (15), the other end of the moving rod (15) is fixedly connected to the moving shaft (704), the top of the moving shaft (704) is provided with an internal threaded tube (16), the top and bottom of the internal threaded tube (16) are both threadedly connected to screw rods (17), the opposite ends of the two groups of screw rods (17) are respectively fixedly connected to the adjustment frame (604) and the moving shaft (704), and the threads on the surfaces of the two groups of screw rods (17) are opposite.

8. The novel yarn textile fabric light transmittance detection device according to claim 1, characterized in that: An air permeability detection assembly (18) is provided inside the support box (1), and the air permeability detection assembly (18) comprises a ventilation pipe (1801) connected to one side of the rotating box (3), an exhaust pipe (1802) connected to the top of the ventilation pipe (1801), a fixed pipe (1803) connected to the top of the support box (1), and an air volume sensor (1804) installed inside the fixed pipe (1803).

9. The novel yarn textile fabric light transmittance detection device according to claim 8, characterized in that: An exhaust fan (1805) is installed inside the ventilation pipe (1801), and a heat dissipation fin (19) is installed on one side of the light emitter (4), and the other end of the heat dissipation fin (19) passes through the interior of the ventilation pipe (1801).

10. The novel yarn textile fabric light transmittance detection device according to claim 8, characterized in that: The surface of the rotating shaft (501) is movably connected to the inner wall of the support box (1) via a first bearing, and the surface of the ventilation pipe (1801) is movably connected to the inner wall of the support box (1) via a second bearing.

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