Cloth light transmission detection device

Abstract

The invention relates to the technical field of fabric light transmission detection, and discloses a fabric light transmission detection device, which comprises a detection cabinet body, a light transmission detection mechanism and a fabric winding and unwinding mechanism, the light transmission detection mechanism comprises a cross rod arranged in the detection cabinet body, a light measuring sensor is arranged in the middle of the cross rod, a receding opening matched with the light measuring sensor is formed in the detection cabinet body, the outer side of the receding opening is slidably connected with a guide column slidably connected with the detection cabinet body, a cross beam is arranged on the guide column, and a light supplementing assembly is arranged in the middle of the cross beam; the light supplementing assembly is sleeved with a rotating roller synchronously moving with the cloth, and a light transmitting groove is formed in the side wall of the rotating roller. According to the invention, the light supplementing assembly capable of generating parallel downward light is arranged in the rotary roller, so that the cloth can be irradiated only after the light-transmitting groove rotates to the lower part, and the light-transmitting data of the cloth can be obtained through comparison of an irradiation group and a blank group in the whole detection process.

Description

Technical Field

[0001] The present invention relates to the technical field of cloth light transmittance detection, and in particular to a cloth light transmittance detection device. Background Art

[0002] Light transmission testing of fabrics is an important method for evaluating their optical properties. It determines how much light a fabric can transmit, and thus its transparency. For applications requiring light shielding, such as curtains and parasols, understanding the light transmittance of a fabric helps select the appropriate material to ensure optimal coverage.

[0003] However, existing fabric light transmittance detectors simply place the fabric inside a dark box and use a sensor to detect the light intensity after the light passes through the fabric. This requires the sensor to be continuously exposed to light and there is no blank control group test for the fabric, resulting in errors in the final test data. Therefore, it needs to be improved. Summary of the Invention

[0004] The present invention provides a device for detecting light transmittance of cloth, which solves the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The cam is provided with a rotation axis, and the rotation axis is provided with a rotation cone at one end thereof, and a reel is detachably connected to the two clamping cones located on the same side wall of the detection cabinet. The reel is wound around the cloth; the light transmission detection mechanism comprises a cross bar provided inside the detection cabinet, a light measuring sensor is provided in the middle of the cross bar, a yield opening cooperating with the light measuring sensor is provided on the detection cabinet, a guide column slidably connected to the outer side of the yield opening, a cross beam is provided on the guide column, a fill light component is provided in the middle of the cross beam, a rotating roller that moves synchronously with the cloth is sleeved on the outer side of the fill light component, and a light transmission groove is provided on the side wall of the rotating roller.

[0007] As a preferred technical solution of the present invention, the guide column is provided with a hanging plate, and a lifting wheel that mates with the rotating roller is provided on the side of the hanging plate close to the rotating roller. The side wall of the rotating roller is provided with a limiting groove that cooperates with the lifting wheel. A lifting assembly for adjusting the height of the guide column is provided inside the detection cabinet, and a shielding assembly that cooperates with the clearance opening is provided on the inner wall of the detection cabinet. The shielding assembly includes a telescopic sleeve provided on the inner wall of the detection cabinet, the telescopic sleeve is slidably connected to a telescopic rod, the end of the telescopic rod is provided with a telescopic block, the telescopic block is rotatably connected to a shielding roller, the interior of the telescopic sleeve is provided with a spring that drives the telescopic rod to move toward the center of the detection cabinet, and a shielding plate is provided on the side of the telescopic rod. The lifting assembly includes a transverse screw rod rotatably connected to the side wall of the detection cabinet, a push plate is threadedly connected to the transverse screw rod, the side of the push plate is rotatably connected to one end of the top plate, and the other end of the top plate is rotatably connected to a push rod fixedly connected to the guide column. The inner wall of the detection cabinet is provided with a first drive motor, the output shaft of the first drive motor is fixedly connected to the first bevel gear, and the first bevel gear is meshed with a second bevel gear fixedly connected to the transverse screw rod.

[0008] As a preferred technical solution of the present invention, the fill light assembly includes a fixed rod fixedly connected to the crossbeam, with a light-emitting tube disposed in the middle of the fixed rod. The rotating roller is a hollow structure, with through holes provided at both ends of the rotating roller, through which the fixed rod extends. Guide rods are provided on both sides of the light-transmitting groove. The fixed rod is externally sheathed with a curved light-dispersing plate disposed within the rotating roller. Reinforcing ribs are provided between the curved light-dispersing plate and the fixed rod. Light emitted by the light-emitting tube is reflected by the inner wall of the curved light-dispersing plate, producing parallel light that passes through the clearance opening.

[0009] As a preferred technical solution of the present invention, the end of the rotating arm is rotatably connected to a rotating sleeve, the middle of the rotating sleeve is slidably connected to a rotating shaft, a limit plate is provided at the end of the rotating shaft away from the clamping cone head, and a clamping spring is provided between the limit plate and the rotating sleeve to drive the rotating shaft to move toward the center of the detection cabinet. One of the rotating arms is provided with a motor seat, and a second drive motor is provided on the motor seat, and the output shaft of the second drive motor is fixedly connected to the end of the rotating shaft. The rotating arm is rotatably connected to the rotating seat, and a stopper is provided on the side of the rotating arm. A rotating head is provided on the side of the detection cabinet, and the rotating head is rotatably connected to a T-shaped support frame that cooperates with the stopper.

[0010] The present invention has the following benefits:

[0011] By setting up a fill light component inside the rotating roller that can generate parallel downward light, the fabric will be illuminated only when the light-transmitting slot rotates downward. Therefore, during the entire detection process, the light transmittance data of the fabric can be obtained by comparing the irradiated group and the blank group, making the result more accurate through comparison. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0013] Figure 1 It is a schematic structural diagram of a device for detecting the light transmittance of a fabric.

[0014] Figure 2 It is a schematic structural diagram of the device for detecting the light transmittance of a fabric after removing the fabric.

[0015] Figure 3 It is Figure 2 the front view of

[0016] Figure 4 It is a schematic structural diagram of the light transmittance detection mechanism in a device for detecting the light transmittance of a fabric.

[0017] Figure 5 It is Figure 4 the front view of

[0018] Figure 6 It is a schematic structural diagram of the shielding component in a device for detecting the light transmittance of a fabric.

[0019] Figure 7 It is a schematic structural diagram of the interior of the rotating roller in a device for detecting the light transmittance of a fabric.

[0020] Figure 8 It is a schematic structural diagram of the lifting component in a device for detecting the light transmittance of a fabric.

[0021] Figure 9 It is a schematic structural diagram of the fabric winding and unwinding mechanism in a device for detecting the light transmittance of a fabric.

[0022] Figure 10 It is Figure 9 the top view of

[0023] Figure 11 It is a schematic structural diagram of the device for detecting the light transmittance of a fabric after the two-sided rotating arms are lowered.

[0024] Figure: 1, detection cabinet; 2, light transmission detection mechanism; 3, fabric rewinding and unwinding mechanism; 4, yielding port; 5, guide column; 6, crossbeam; 7, fill light assembly; 8, hanging plate; 9, lifting wheel; 10, rotating roller; 11, shielding assembly; 12, crossbar; 13, light measuring sensor; 14, telescopic sleeve; 15, telescopic rod; 16, telescopic block; 17, shielding roller; 18, shielding plate; 19, through hole; 20, fixing rod; 21, reinforcing rib; 22, light-emitting tube; 23, arc-shaped light-distributing plate; 24, guide Rod; 25. Light-transmitting slot; 26. Limiting slot; 27. Transverse screw rod; 28. Top plate; 29. Push plate; 30. First drive motor; 31. First bevel gear; 32. Second bevel gear; 33. Lifting assembly; 34. Rotating seat; 35. Rotating arm; 36. Clamping cone head; 37. Motor seat; 38. Second drive motor; 39. Rotating shaft; 40. Rotating sleeve; 41. Clamping spring; 42. Limiting plate; 43. Rotating head; 44. T-shaped support frame; 45. Block; 46. Push rod; 47. Reel. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0026] In one embodiment, see Figures 1 - 11 A device for detecting light transmittance of fabrics includes a detection cabinet 1 having a cubic structure and a door that can be opened on the front of the detection cabinet 1 so that the interior of the detection cabinet 1 can be inspected by opening the door. The device also includes a light transmittance detection mechanism 2 and a fabric reeling and unreeling mechanism 3.

[0027] The fabric reeling and unreeling mechanism 3 includes a rotating seat 34 provided above the left and right side walls of the detection cabinet 1. Two rotating seats 34 are provided above one side wall of the detection cabinet 1. A rotating arm 35 is provided on the rotating seat 34. A rotating shaft 39 that is arranged in a front-to-back direction and can rotate is provided at one end of the rotating arm 35 away from the rotating seat 34. A clamping cone 36 is provided at the opposite end of the front and rear rotating shafts 39. The clamping cone 36 is in a frustum shape. A reel 47 wound with fabric is placed in a front-to-back direction between the front and rear clamping cones 36, thereby fixing the reel 47 through the clamping cone 36.

[0028] The light transmission detection mechanism 2 includes a cross bar 12 arranged inside the detection cabinet 1, the cross bar 12 is arranged in a left-right direction, and the left and right ends of the cross bar 12 are fixedly connected to the middle of the inner wall of the detection cabinet 1. A light measuring sensor 13 arranged in a front-to-back direction is provided in the middle of the cross bar 12, and a clearance opening 4 is provided in the middle of the upper top plate 28 of the detection cabinet 1. Four vertical guide columns 5 are provided on the outside of the clearance opening 4. The guide columns 5 are symmetrically arranged with respect to the top plate 28 of the detection cabinet 1. A left-to-right cross beam 6 is provided above the guide column 5, and cross beams 6 are provided on the front and back sides of the upper part of the detection cabinet 1. A fill light component 7 is provided between the front and rear cross beams 6. The fill light component 7 is a columnar light-emitting component. A rotating roller 10 is sleeved on the outside of the fill light component 7. The rotating roller 10 is a columnar structure arranged in a front-to-back direction. The rotating roller 10 is a hollow structure, and a front-to-back direction is provided on the side wall of the rotating roller 10. The light transmission slot 25 is set, and the rotating roller 10 falls on the top of the cloth and rotates with the movement of the cloth. When the light transmission slot 25 of the rotating roller 10 rotates to the bottom, the light emitted by the fill light component 7 can pass through the cloth from top to bottom through the light transmission slot 25, and finally the light intensity passing through the cloth is detected by the light measuring sensor 13, thereby realizing the light transmission detection of the cloth. In order to prevent the cloth from being scratched by the edge of the light transmission slot 25, guide rods 24 are set in a front-to-back direction on the left and right sides of the light transmission slot 25. On the one hand, the curved surface of the guide rod 24 can better contact with the cloth, and on the other hand, the guide rods 24 on the left and right sides can support the cloth. At this time, the cloth located between the two guide rods 24 is kept flat, and the light vertically downward from above will pass through the cloth vertically, thereby ensuring that the angles between all light and the cloth are fixed when the cloth is undergoing light transmission detection, thereby reducing the existence of errors.

[0029] In one case of this embodiment, a hanging plate 8 is provided on the guide column 5, and a lifting wheel 9 that fits the rotating roller 10 is provided on the side of the hanging plate 8 close to the rotating roller 10, and a limiting groove 26 that cooperates with the lifting wheel 9 is provided on the side wall of the rotating roller 10. A circle of limiting grooves 26 are provided on the front and rear sides of the rotating roller 10, and a total of eight lifting wheels 9 are provided on the front and rear sides respectively, so that two lifting wheels 9 are provided on the upper and lower sides of the limiting groove 26 respectively to clamp the rotating roller 10. On the one hand, the cooperation between the lifting wheel 9 and the rotating roller 10 makes the rotating roller 10 move along with the guide column 5 moves up and down. On the other hand, since the lifting wheel 9 is stuck in the limiting groove 26, the front and rear directions of the rotating roller 10 are restricted. That is to say, the rotating roller 10 can only move up and down with the guide column 5 without shaking. A lifting component 33 is provided at the bottom of the detection cabinet 1. The lifting component 33 is used to control the up and down movement of the guide column 5 to realize the up and down movement of the rotating roller 10. In order to prevent external light from entering the interior of the detection cabinet 1 and affecting the detection effect of the light metering sensor 13, a shielding component 11 is provided below the yield opening 4 to shield external light.

[0030] In one case of this embodiment, the shielding assembly 11 includes a telescopic sleeve 14 arranged above the left and right inner walls of the detection cabinet 1, and the telescopic sleeve 14 is slidably connected to a telescopic rod 15 on one side close to the center of the detection cabinet 1, and a telescopic block 16 is provided at the end of the telescopic rod 15. The telescopic block 16 is rotatably connected to a shielding roller 17 arranged in a front-back direction, and a spring is provided inside the telescopic sleeve 14. The spring pushes the telescopic rod 15 to move toward the center of the detection cabinet 1, so that the two shielding rollers 17 move closer to each other, and the blocking rollers 17 block the clearance port 4, and when the rotating roller 10 falls, the shielding rollers 17 on both sides will separate adaptively, opening the gap on the one hand. The gap is convenient for the detection of light transmittance. On the other hand, the blocking roller 17 will be pressed under the rotating roller 10, and a clamping effect will be formed by the blocking roller 17 and the rotating roller 10 to fix the fabric. In order to prevent debris from falling from the side of the blocking roller 17 away from the center of the detection cabinet 1, a blocking plate 18 can be set above the telescopic rod 15, and the end of the blocking plate 18 is attached to the side of the blocking roller 17 away from the center of the detection cabinet 1. When the two blocking rollers 17 move closer to each other to block the yield port 4, the blocking plates 18 on both sides block the gap, thereby improving the light shading effect and avoiding the problem of debris entering the interior of the detection cabinet 1 through the gap between the blocking roller 17 and the yield port 4.

[0031] In a case of this embodiment, the lifting assembly 33 includes a transverse translation lead screw 27 disposed horizontally below the detection cabinet 1. The left and right ends of the transverse translation lead screw 27 are rotatably connected to the lower part of the inner wall of the detection cabinet 1. Threads with opposite helix directions are provided on the left and right sides of the transverse translation lead screw 27, and push plates 29 disposed front-to-back are threadedly connected to the left and right sides of the transverse translation lead screw 27. The front and rear sides of the upper surface of the push plate 29 are rotatably connected to the lower end of the push plate 29, and the front and rear sides of the upper end of the push plate 29 are rotatably connected to the front and rear ends of a push rod 46 disposed front-to-back. The front and rear ends of the push rod 46 are fixedly connected to the lower ends of guide columns 5. Therefore, when the transverse translation lead screw 27 rotates, the two push plates 29 approach or move away from each other, so that the push plates 29 push the guide columns 5 to move up and down, realizing the height adjustment of the guide columns 5. And a first drive motor 30 is provided on the right inner wall of the detection cabinet 1. The output shaft of the first drive motor 30 is fixedly connected to a first bevel gear 31. The first bevel gear 31 is meshed with a second bevel gear 32. The second bevel gear 32 is fixedly connected to the right side of the transverse translation lead screw 27. The first drive motor 30 can control the rotation of the transverse translation lead screw 27 by means of gear transmission.

[0032] In a case of this embodiment, the light supplementing assembly 7 includes a fixed rod 20 disposed front-to-back. A columnar light emitting tube 22 is provided in the middle of the fixed rod 20. Through holes 19 are provided at the front and rear ends of the rotary roller 10. Therefore, the fixed rod 20 can pass through the through holes 19. The front and rear ends of the fixed rod 20 are fixedly connected to the middle of the cross beam 6. At this time, the rotary roller 10 will rotate along with the fabric, but the fixed rod 20 remains fixed without shaking. And reinforcing ribs 21 are provided on the front and rear sides of the fixed rod 20. The reinforcing ribs 21 are fixedly connected to an arc-shaped light homogenizing plate 23. The arc-shaped light homogenizing plate 23 is provided with a notch below. The inner wall of the arc-shaped light homogenizing plate 23 is made of a reflective material. Therefore, when the light emitting tube 22 emits light, the light is subjected to multiple reflections by the arc-shaped light homogenizing plate 23, so that only the parallel and vertically downward light can pass through the notch below the arc-shaped light homogenizing plate 23 and irradiate the fabric after converting all the light generated by the light emitting tube 22 into vertically downward light.

[0033] In a case of this embodiment, a rotating sleeve 40 is rotatably connected to the end of the rear rotating arm 35. The rotating sleeve 40 is slidably connected to the rotating shaft 39, so that the rotating shaft 39 can slide back and forth relative to the rotating sleeve 40 while the rotating shaft 39 itself can rotate with the rotating sleeve 40. A limiting plate 42 is provided at the rear end of the rotating shaft 39. A clamping spring 41 is provided between the limiting plate 42 and the rotating sleeve 40. The clamping spring 41 will push the rotating shaft 39 forward, so that the clamping cone head 36 at the rear moves forward, so as to cooperate with the clamping cone head 36 at the front to complete the fixing process of the reel 47. And it is detected that the two rotating arms 35 in front of the cabinet 1 are only rotatably connected to the rotating shaft 39, that is, the clamping cone head 36 at the front is in a fixed position. A motor seat 37 is provided in the middle of the rotating arm 35 on the right front side of the detection cabinet 1. A second driving motor 38 is provided on the motor seat 37. The output shaft of the second driving motor 38 is fixedly connected to the front end of the rotating shaft 39, so as to drive the clamping cone head 36 at the front to rotate through the second driving motor 38. When the reel 47 wound with the fabric to be detected is fixed on the left side of the detection cabinet 1, the free end of the fabric is fixed on the reel 47 on the right side. The second driving motor 38 provides power to move the fabric from the left side to the right side, so as to realize the movement of the fabric, and detect the light transmittance of the fabric during the movement of the fabric.

[0034] In a case of this embodiment, in order to minimize the space occupied by the entire detection device when not in use, the rotating seat 34 and the rotating arm 35 can be designed to be rotatably connected. When the detection process is not required, under the action of gravity, the rotating arm 35 will fall down, and the clamping cone head 36 will lean against the side wall of the detection cabinet 1. When the detection process is required, a stop block 45 is provided in the middle of the lower surface of the rotating arm 35, and a rotating head 43 is provided on the side wall of the detection cabinet 1. The rotating head 43 is rotatably connected to the T-shaped support frame 44. The T-shaped support frame 44 is lifted up to block the stop block 45, so that the rotating arm 35 is lifted up, so that the two rotating arms 35 on both sides open to both sides. At this time, the fixing process of the reel 47 can be carried out.

[0035] During the implementation of this embodiment, first, the entire detection cabinet 1 needs to be powered on, and the light intensity of the light-emitting diode 22 needs to be calibrated. Then, the data output of the photometric sensor 13 is connected to a related computing device for recording detection data.

[0036] Fabric fixing process: Start the first drive motor 30. The transverse movement lead screw 27 drives the two push plates 29 to separate. The guide post 5 moves upward, and the rotating roller 10 moves upward. At this time, the rotating arms 35 on both sides are lifted, and the T-shaped support frame 44 is pressed against the rotating arm 35. Remove the reel 47 wound with the fabric to be tested, pull the left rotating shaft 39 backward, place the reel 47 between the two clamping cone heads 36 on the left, release the left rotating shaft 39, the reel 47 is fixed, and the free end of the fabric is pulled out to the right. The fabric passes under the rotating roller 10, and the free end of the fabric is fixed on an empty reel 47, and the right rotating shaft 39 is pulled to fix the empty reel 47 on the clamping cone head 36 on the right side of the detection cabinet body 1. At this time, reverse-start the first drive motor 30, and the rotating roller 10 drives the fabric to move downward. The rotating roller 10 pushes open the shielding rollers 17 on both sides. At this time, the fabric clamping process is completed.

[0037] Light transmission detection process: Start the light-emitting tube 22 and the light-measuring sensor 13, and start the second drive motor 38. The empty reel 47 on the right continuously winds the fabric, and the fabric moves from left to right. During the movement of the fabric, the rotating roller 10 will adaptively rotate counterclockwise. When the light-transmitting groove 25 of the rotating roller 10 rotates to the lower side, the light will irradiate vertically downward on the fabric, and the light passes through the fabric and is received by the light-measuring sensor 13, thereby obtaining the data of the irradiation group. However, when the rotating roller 10 continues to rotate, the light-transmitting groove 25 will rotate to the upper side. At this time, the light-transmitting groove 25 is staggered from the slot of the arc-shaped light homogenizing plate 23, and at this time, the light cannot irradiate on the fabric. At this time, what the detection sensor detects is the blank group without light passing through as the control group. Therefore, as the fabric continues to move, the light-measuring sensor 13 will continuously switch between the light-irradiation group and the blank group, thereby obtaining the light transmittance of the fabric through the change of the value. And because the arc-shaped light homogenizing plate 23 is provided, when the light-transmitting groove 25 rotates to the lower side, only the vertically downward light irradiates the fabric, reducing the interference items in the light transmission detection and making the final result more accurate. And because the light-measuring sensor 13 does not need to continuously receive light irradiation for a long time, it can also better protect the light-measuring sensor 13 and further avoid the occurrence of detection errors.

[0038] The present invention is applicable to a fabric light transmittance detection device. By arranging a supplementary light component 7 that can generate parallel downward light inside the rotating roller 10, the fabric is irradiated only when the light-transmitting groove 25 rotates to the lower side, so that the light transmittance data of the fabric can be obtained through the comparison between the irradiation group and the blank group during the whole detection process, and the result is more accurate through the comparison.

[0039] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention.

Claims

1. A device for detecting the light transmittance of a fabric, characterized in that, It includes a detection cabinet, a light transmission detection mechanism and a fabric reeling and unreeling mechanism; The fabric reeling and unreeling mechanism includes a rotating seat arranged on the side wall of the detection cabinet, the rotating seat is connected to one end of a rotating arm, the other end of the rotating arm is provided with a rotating shaft, and the end of the rotating shaft close to the center of the detection cabinet is provided with a clamping cone head. A reel is detachably connected between the two clamping cone heads located on the same side wall of the detection cabinet, and the fabric is wound around the outside of the reel; The light transmission detection mechanism includes a cross bar arranged inside the detection cabinet, a light measuring sensor is arranged in the middle of the cross bar, the detection cabinet is provided with a clearance opening that cooperates with the light measuring sensor, the outer side of the clearance opening is slidably connected to a guide column slidably connected to the detection cabinet, a cross beam is arranged on the guide column, a fill light component is arranged in the middle of the cross beam, the outer side of the fill light component is provided with a rotating roller that moves synchronously with the cloth, and the side wall of the rotating roller is provided with a light transmission groove.

2. The fabric light transmittance detection device according to claim 1, wherein, A hanging plate is provided on the guide column, and a lifting wheel that fits with the rotating roller is provided on the side of the hanging plate close to the rotating roller. A limiting groove that cooperates with the lifting wheel is provided on the side wall of the rotating roller. A lifting component for adjusting the height of the guide column is provided inside the detection cabinet, and a shielding component that cooperates with the yielding opening is provided on the inner wall of the detection cabinet.

3. The fabric light transmittance detection device according to claim 2, characterized in that, The shielding assembly includes a telescopic sleeve arranged on the inner wall of the detection cabinet, the telescopic sleeve is slidably connected to the telescopic rod, a telescopic block is provided at the end of the telescopic rod, the telescopic block is rotatably connected to the shielding roller, a spring is provided inside the telescopic sleeve to drive the telescopic rod to move toward the center of the detection cabinet, and a shielding plate is provided on the side of the telescopic rod.

4. The fabric light transmittance detection device according to claim 2, wherein The lifting assembly includes a transverse screw rod rotatably connected to the side wall of the detection cabinet, a push plate is threadedly connected to the transverse screw rod, the side of the push plate is rotatably connected to one end of the top plate, and the other end of the top plate is rotatably connected to a push rod fixedly connected to the guide column. The inner wall of the detection cabinet is provided with a first drive motor, the output shaft of the first drive motor is fixedly connected to the first bevel gear, and the first bevel gear is meshed with a second bevel gear fixedly connected to the transverse screw rod.

5. The fabric light transmittance detection device according to claim 1, characterized in that The fill light assembly comprises a fixing rod fixedly connected to the crossbeam, and a light emitting tube is arranged in the middle of the fixing rod.

6. The fabric light transmittance detection device according to claim 5, wherein The rotating roller is a hollow structure. Through holes are provided at both ends of the rotating roller. The fixing rods pass through the connecting through holes. Guide rods are provided on both sides of the light-transmitting groove.

7. The fabric light transmittance detection device according to claim 6, characterized in that, The outer sleeve of the fixed rod is provided with an arc-shaped light-distributing plate arranged inside the rotating roller. A reinforcing rib is provided between the arc-shaped light-distributing plate and the fixed rod. The light emitted by the light-emitting tube is reflected by the inner wall of the arc-shaped light-distributing plate to produce parallel light passing through the gap.

8. The fabric light transmittance detection device according to claim 1, characterized in that, The end of the rotating arm is rotatably connected to a rotating sleeve, the middle of the rotating sleeve is slidably connected to the rotating shaft, a limit plate is provided at the end of the rotating shaft away from the clamping cone head, and a clamping spring is provided between the limit plate and the rotating sleeve to drive the rotating shaft to move toward the center of the detection cabinet. A motor seat is provided on one of the rotating arms, and a second drive motor is provided on the motor seat. The output shaft of the second drive motor is fixedly connected to the end of the rotating shaft.

9. The fabric light transmittance detection device according to claim 8, characterized in that, The rotating arm is rotatably connected to the rotating seat, a stopper is provided on the side of the rotating arm, a rotating head is provided on the side of the detection cabinet, and the rotating head is rotatably connected to a T-shaped support frame that cooperates with the stopper.

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