Foreign fiber fluorescence detection and analysis device

Abstract

The invention relates to the technical field of foreign fiber detection and discloses a foreign fiber fluorescence detection and analysis device which comprises a fluorescence detection and analysis instrument, an air cylinder is fixedly installed at the top of the fluorescence detection and analysis instrument, and an auxiliary rod located in an inner cavity of the fluorescence detection and analysis instrument is fixedly installed at the output end of the air cylinder. A circular plate is fixedly installed at the bottom of the auxiliary rod, a light source part is fixedly installed at the bottom of the circular plate, and an objective table located below the light source part is fixedly installed at the bottom of the inner cavity of the fluorescence detection analysis instrument through a support. A sample unfolding assembly is arranged on the outer side of an auxiliary rod, when an air cylinder drives a circular plate and a light source part to move downwards, a moving rod can be driven to move downwards, and when a rolling ball moves to the position in contact with a sample, along with descending of the auxiliary rod, the moving rod can be pushed by an adjusting plate to move along an inner cavity of a moving groove; therefore, the plurality of rolling balls are driven to move towards the outer side of the circular plate, a sample is conveniently unfolded, and fluorescence detection on the sample is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of foreign fiber fluorescence detection, in particular to a foreign fiber fluorescence detection and analysis device. Background Art

[0002] Foreign fiber fluorescence detection and analysis devices are usually used for fast and accurate fluorescence detection and analysis of different types of fibers, especially in the fields of textiles, environmental monitoring, materials science, etc. This type of device uses fluorescent labeling technology to detect specific components or structures of fibers, or to identify whether specific substances exist. Foreign fiber fluorescence detection and analysis devices use an excitation light source to illuminate the sample surface, exciting certain components in the sample or attached fluorescent dyes. Fluorescent markers absorb the excitation light and release energy, emitting fluorescence at different wavelengths. The receiving system selectively captures the fluorescence signal through an optical filter and ignores the excitation light. The signal is converted into an electrical signal by the detector and transmitted to a computer for analysis.

[0003] By comparing the standard fluorescence signal data, the type, content, contaminants or other characteristics of the fiber in the sample can be inferred.

[0004] A Chinese patent with publication number CN208206770U discloses a foreign fiber fluorescence detection system based on a photodiode. The detection system can quickly and accurately complete the detection and removal of white polypropylene yarns and plastic films in cotton, meet the speed and detection rate of textile automation, and solve the various problems existing in the above-mentioned traditional foreign fiber sorting machines. While ensuring the detection effect, it optimizes resource allocation and reduces cost requirements; however, when the samples are subjected to fluorescence detection, the staff directly places the samples on the detection table. Some samples may be placed at an inappropriate angle or have complex shapes, resulting in inaccurate fluorescence detection of the samples, thereby affecting the stability of the detection results. Summary of the invention

[0005] The purpose of the present invention is to provide a foreign fiber fluorescence detection and analysis device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a fluorescence detection and analysis device for foreign fibers, comprising: A fluorescence detection and analysis instrument, wherein a cylinder is fixedly mounted on the top of the fluorescence detection and analysis instrument, an auxiliary rod located in the inner cavity of the fluorescence detection and analysis instrument is fixedly mounted on the output end of the cylinder, a circular plate is fixedly mounted on the bottom of the auxiliary rod, a light source component is fixedly mounted on the bottom of the circular plate, and a stage located below the light source component is fixedly mounted on the bottom of the inner cavity of the fluorescence detection and analysis instrument by means of a bracket; A sample unfolding assembly, wherein the sample unfolding assembly is arranged on a circular plate, and the sample unfolding assembly comprises a first connecting seat, an adjusting plate, a second connecting seat, a movable groove, a movable rod and a rolling ball. The first connecting seat is fixedly mounted on the outer side of the auxiliary rod, and the adjusting plate is rotatably connected to the first connecting seat. A movable groove is provided on the circular plate, and a movable rod is movably sleeved in the inner cavity of the movable groove. A second connecting seat is fixedly mounted on the top of the movable rod, and the second connecting seat is rotatably connected to the bottom of the adjusting plate. The bottom of the movable rod is connected to a rolling ball by means of a buffer assembly.

[0007] As a further improvement of the present invention, the buffer assembly includes a mounting seat, a circular groove, a lifting rod and a spring. A circular groove is provided at the bottom of the moving rod, and the lifting rod is movably sleeved in the inner cavity of the circular groove. A mounting seat is fixedly installed at the bottom end of the lifting rod, and a rolling ball is rotatably connected to the bottom of the mounting seat. A spring is movably sleeved on the outer side of the lifting rod, and the two ends of the spring are respectively fixed to the bottom of the moving rod and the top of the mounting seat. A plurality of conical rods are fixedly installed at the bottom of the mounting seat, and the ends of the conical rods and the center of the rolling ball are located at the same height.

[0008] As a further improvement of the present invention, the circular plate is provided with a plurality of movable grooves and movable rods evenly distributed on the outside of the light source component, and the plurality of movable grooves are distributed on the circular axis of the circular plate.

[0009] As a further improvement of the present invention, the movable rod is composed of two vertical rods and a horizontal rod, and two ends of the horizontal rod are respectively connected to the two vertical rods.

[0010] As a further improvement of the present invention, the inner cavity of the fluorescence detection and analysis instrument is provided with an intensity adjustment component, and the intensity adjustment component includes a motor, a rotating shaft, a rotating plate, a filter, an adjustment knob, a first gear and a second gear. The motor is fixedly installed on the top of the inner cavity of the fluorescence detection and analysis instrument, the output end of the motor is fixedly installed with a rotating shaft, the bottom end of the rotating shaft is fixedly installed with a rotating plate, the top of the rotating plate is fixedly sleeved with a filter, an adjustment knob is fixedly installed on one side of the top of the circular plate, the top of the adjusting knob is fixedly installed with a first gear, the outer side of the rotating shaft is fixedly sleeved with a second gear, and the outer teeth of the second gear are meshed with the outer teeth of the first gear.

[0011] As a further improvement of the present invention, one side of the rotating plate is located between the stage and the bottom of the inner cavity of the fluorescence detection and analysis instrument, and the rotating plate has a plurality of filters evenly distributed along the circumference of the rotating plate.

[0012] As a further improvement of the present invention, the adjusting knob is electrically connected to the light source component, and the adjusting knob is used to adjust the brightness of the light source component.

[0013] As a further improvement of the present invention, the height of the first gear is greater than the distance between the rolling ball and the top of the loading platform.

[0014] As a further improvement of the present invention, a door closing assembly is provided on the front side of the fluorescence detection and analysis instrument, and the door closing assembly includes a slide groove, a connecting rod and a shielding door. A slide groove is opened on the upper part of the front side of the fluorescence detection and analysis instrument, and the inner cavity of the slide groove is slidably connected with the shielding door. A connecting rod is fixedly installed on the front side of the circular plate, and the shielding door is fixedly installed on the front side of the connecting rod.

[0015] As a further improvement of the present invention, a connecting plate located below the light source component is fixedly installed on one side of the moving rod close to the light source component, an arc plate is fixedly installed on one side of the connecting plate, a cleaning cloth is fixedly installed on the top of the arc plate, and the top of the cleaning cloth is in the same plane as the bottom of the light source component.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The foreign fiber fluorescence detection and analysis device is provided with a sample unfolding component on the outer side of the auxiliary rod. When the cylinder drives the circular plate and the light source component to move downward, the movable rod can be driven to move downward. When the ball moves to the position in contact with the sample, as the auxiliary rod descends, the movable rod can be pushed to move along the inner cavity of the movable groove by using the adjustment plate, thereby driving multiple balls to move toward the outer side of the circular plate. The conical rod on the mounting seat is inserted into the sample to facilitate the unfolding of the sample and the fluorescence detection of the sample.

[0017] 2. The heterogeneous fiber fluorescence detection and analysis device uses a lifting rod, a spring and a mounting seat to connect the moving rod and the rolling ball. The elastic force of the spring can fix the sample on the top of the stage, thereby improving the stability of the sample during detection.

[0018] 3. The heterogeneous fiber fluorescence detection and analysis device uses a motor as a drive to drive the second gear, the rotating shaft and the rotating plate to rotate, and the first gear is meshed with the second gear, thereby driving the adjustment knob to rotate, so as to facilitate the adjustment of the brightness of the light source component, and to facilitate the automatic adjustment of the intensity of the excitation light source component according to the fluorescence characteristics of different fiber materials and target substances. At the same time, a filter is provided on the rotating plate, and when the intensity of the light source component is adjusted, the corresponding filter is automatically adjusted to move to the bottom of the stage, and automatically adjusted according to the fluorescence characteristics of the sample to maximize the filtering of unnecessary light and ensure accurate fluorescence signal reception. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a schematic diagram of the overall structure of a foreign fiber fluorescence detection and analysis device of the present invention; Figure 2 This is a schematic diagram of the structure of a fluorescence detection and analysis instrument in a foreign fiber fluorescence detection and analysis device of the present invention; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the structure of a light source component in a device for detecting and analyzing foreign fiber fluorescence according to the present invention; Figure 5 This is a schematic diagram of the structure of a sample development component in a foreign fiber fluorescence detection and analysis device of the present invention; Figure 6 It is an exploded view between the circular groove and the lifting rod in a foreign fiber fluorescence detection and analysis device of the present invention; Figure 7 for Figure 6 Enlarged view of point B in the middle.

[0021] In the figure: 1. Fluorescence detection and analysis instrument; 2. Cylinder; 3. Auxiliary rod; 4. Round plate; 5. Light source component; 6. Sample development component; 601. First connecting seat; 602. Adjustment plate; 603. Second connecting seat; 604. Moving groove; 605. Moving rod; 606. Mounting seat; 607. Rolling ball; 608. Round groove; 609. Lifting rod; 610. Spring; 611. Conical rod; 7. Stage; 8. Intensity adjustment component; 801. Motor; 802. Rotating shaft; 803. Rotating plate; 804. Filter; 805. Adjustment knob; 806. First gear; 807. Second gear; 9. Door closing component; 901. Slide groove; 902. Connecting rod; 903. Shielding door; 10. Connecting plate; 11. Arc plate; 12. Cleaning cloth. DETAILED DESCRIPTION

[0022] 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.

[0023] For example, see Figure 1 , Figure 4-Figure 7 The present invention provides a foreign fiber fluorescence detection and analysis device, comprising: A fluorescence detection and analysis instrument 1, wherein a cylinder 2 is fixedly installed on the top of the fluorescence detection and analysis instrument 1, an auxiliary rod 3 located in the inner cavity of the fluorescence detection and analysis instrument 1 is fixedly installed on the output end of the cylinder 2, a circular plate 4 is fixedly installed on the bottom of the auxiliary rod 3, a light source component 5 is fixedly installed on the bottom of the circular plate 4, and a stage 7 located below the light source component 5 is fixedly installed on the bottom of the inner cavity of the fluorescence detection and analysis instrument 1 by means of a bracket; the top of the stage 7 is convex to facilitate the rolling of the ball 607 toward the periphery of the stage 7.

[0024] The sample unfolding component 6 is arranged on the circular plate 4, and the sample unfolding component 6 includes a first connecting seat 601, an adjusting plate 602, a second connecting seat 603, a movable groove 604, a movable rod 605 and a rolling ball 607. The first connecting seat 601 is fixedly installed on the outer side of the auxiliary rod 3, and the adjusting plate 602 is rotatably connected to the first connecting seat 601. The circular plate 4 is provided with a movable groove 604, and the inner cavity of the movable groove 604 is movably sleeved with the movable rod 605. The top of the movable rod 605 is fixedly installed with the second connecting seat 603, and the second connecting seat 603 is rotatably connected to the bottom of the adjusting plate 602. The bottom of the movable rod 605 is connected to the rolling ball 607 by means of a buffer component.

[0025] A sample unfolding assembly 6 is provided on the outer side of the auxiliary rod 3. When the cylinder 2 drives the circular plate 4 and the light source component 5 to move downward, the movable rod 605 can be driven to move downward. When the ball 607 moves to a position in contact with the sample, as the auxiliary rod 3 descends, the movable rod 605 can be pushed to move along the inner cavity of the movable groove 604 by utilizing the adjustment plate 602, thereby driving a plurality of balls 607 to move toward the outer side of the circular plate 4. The conical rod 611 is inserted into the sample to facilitate unfolding the sample and fluorescence detection of the sample.

[0026] The buffer assembly includes a mounting seat 606, a circular groove 608, a lifting rod 609 and a spring 610. A circular groove 608 is provided at the bottom of the moving rod 605. The inner cavity of the circular groove 608 is movably sleeved with the lifting rod 609. The bottom end of the lifting rod 609 is fixedly mounted with a mounting seat 606. The bottom of the mounting seat 606 is rotatably connected with a rolling ball 607. The outer side of the lifting rod 609 is movably sleeved with a spring 610. The two ends of the spring 610 are respectively fixed to the bottom of the moving rod 605 and the top of the mounting seat 606. A plurality of conical rods 611 are fixedly mounted at the bottom of the mounting seat 606. The plurality of conical rods 611 are evenly distributed along the outer side of the rolling ball 607. The end of the conical rod 611 and the center of the rolling ball 607 are located at the same height, and the bottom of the conical rod 611 is located above the bottom of the rolling ball 607. A tapered rod 611 is provided at the bottom of the mounting seat 606, so that the tapered rod 611 can be inserted into the sample to facilitate the sample to be spread out.

[0027] By connecting the moving rod 605 and the rolling ball 607 through the lifting rod 609, the spring 610 and the mounting seat 606, the sample can be fixed on the top of the stage 7 by the elastic force of the spring 610, thereby improving the stability of the sample during detection.

[0028] The circular plate 4 is provided with a plurality of moving grooves 604 and moving rods 605 evenly distributed on the outside of the light source component 5, and the plurality of moving grooves 604 are distributed on the circular axis of the circular plate 4. The moving rod 605 is composed of two vertical rods and a horizontal rod, and two vertical rods are connected to the two ends of the horizontal rod, respectively. The moving rod 605 can be arranged on the outside of the light source component 5, and the rolling ball 607 can be in contact with the center of the sample, so that it can be subsequently unfolded and convenient for detection.

[0029] The connecting plate 10 located below the light source component 5 is fixedly mounted on the side of the moving rod 605 close to the light source component 5, and an arc plate 11 is fixedly mounted on one side of the connecting plate 10. A cleaning cloth 12 is fixedly mounted on the top of the arc plate 11, and the top of the cleaning cloth 12 is in the same plane as the bottom of the light source component 5. The connecting plate 10 and the cleaning cloth 12 are arranged on the moving rod 605, and when the cylinder 2 drives the circular plate 4 and the light source component 5 to move downward and the moving rod 605 to move outward, the connecting plate 10 and the cleaning cloth 12 are driven to move at the bottom of the light source component 5, and the fiber filaments adhering to the bottom of the light source component 5 are cleaned up, so as to avoid the fiber filaments at the bottom of the light source component 5 from blocking the light source component 5 and affecting the fluorescence detection.

[0030] For example 2, please refer to Figure 2-Figure 5The inner cavity of the fluorescence detection and analysis instrument 1 is provided with an intensity adjustment component 8, and the intensity adjustment component 8 includes a motor 801, a rotating shaft 802, a rotating plate 803, a filter 804, an adjusting knob 805, a first gear 806 and a second gear 807. The motor 801 is fixedly installed on the top of the inner cavity of the fluorescence detection and analysis instrument 1, and the output end of the motor 801 is fixedly installed with a rotating shaft 802, and the bottom end of the rotating shaft 802 is fixedly installed with a rotating plate 803, and the top of the rotating plate 803 is fixedly sleeved with a filter 804. An adjusting knob 805 is fixedly installed on one side of the top of the circular plate 4, and a first gear 806 is fixedly installed on the top of the adjusting knob 805. The outer side of the rotating shaft 802 is fixedly sleeved with a second gear 807, and the outer teeth of the second gear 807 are meshed with the outer teeth of the first gear 806. One side of the rotating plate 803 is located between the stage 7 and the bottom of the inner cavity of the fluorescence detection and analysis instrument 1, and the rotating plate 803 has a plurality of filters 804 evenly distributed along the circumference of the rotating plate 803. The adjusting knob 805 is electrically connected to the light source component 5, and the adjusting knob 805 is used to adjust the brightness of the light source component 5. The motor 801 is used as a drive to drive the second gear 807, the rotating shaft 802 and the rotating plate 803 to rotate, and the first gear 806 is meshed with the second gear 807, thereby driving the adjustment knob 805 to rotate, so as to adjust the brightness of the light source component 5, and automatically adjust the intensity of the excitation light source component 5 according to the fluorescence characteristics of different fiber materials and target substances. At the same time, a filter 804 is provided on the rotating plate 803. When adjusting the intensity of the light source component 5, the corresponding filter 804 is automatically adjusted to move to the bottom of the stage 7, and automatically adjusted according to the fluorescence characteristics of the sample to maximize the filtering of unnecessary light to ensure accurate fluorescence signal reception (the intensity of the light source component 5 directly affects the excitation of the sample. If the intensity of the light source component 5 is too strong, it may cause fluorescence oversaturation, thereby distorting the fluorescence signal; conversely, if the intensity of the light source component 5 is too low, it may cause the signal to be too weak, making it difficult to accurately detect the fluorescence signal. The main function of the filter is to selectively filter light of a specific wavelength, usually excitation light and emission light. Its setting needs to match the wavelength and intensity of the light source component 5 to ensure that the target signal is maximized and unnecessary background light is suppressed).

[0031] The height of the first gear 806 is greater than the distance between the rolling ball 607 and the top of the stage 7. This ensures that the first gear 806 and the second gear 807 are meshed after the circular plate 4 descends, so as to subsequently control the brightness of the light source component 5.

[0032] For example 3, please refer to Figure 1-Figure 2The front side of the fluorescence detection and analysis instrument 1 is provided with a door closing assembly 9, and the door closing assembly 9 includes a slide groove 901, a connecting rod 902 and a shielding door 903. The upper part of the front side of the fluorescence detection and analysis instrument 1 is provided with a slide groove 901, and the inner cavity of the slide groove 901 is slidably connected with the shielding door 903. The front side of the circular plate 4 is fixedly installed with a connecting rod 902, and the front side of the connecting rod 902 is fixedly installed with the shielding door 903. By providing the door closing assembly 9 on the front side of the fluorescence detection and analysis instrument 1, when the circular plate 4 is lowered, the connecting rod 902 and the shielding door 903 can be driven to move downward, and the front side of the fluorescence detection and analysis instrument 1 can be automatically closed when the sample is detected, so as to avoid light pollution and external light affecting the detection accuracy.

[0033] Working principle: When using this device, place the sample on the top of the stage 7, start the cylinder 2 to drive the auxiliary rod 3, the circular plate 4 and the light source component 5 to move downward, drive the moving rod 605 and the rolling ball 607 to move downward, and when the rolling ball 607 moves to the position in contact with the sample, the auxiliary rod 3 and the circular plate 4 continue to descend, and the adjusting plate 602 can be used to push the moving rod 605 to move along the inner cavity of the moving groove 604. The connecting plate 10 and the cleaning cloth 12 are provided on the moving rod 605, and the connecting plate 10 and the cleaning cloth 12 are driven to move at the bottom of the light source component 5 at the same time, and the fiber filaments adhering to the bottom of the light source component 5 are cleaned up. The rod 605 and the rolling ball 607 are connected by a lifting rod 609, a spring 610 and a mounting seat 606, and the spring 610 can be compressed. As the auxiliary rod 3 and the circular plate 4 descend, the multiple rolling balls 607 are driven to move toward the outside of the circular plate 4, so that the multiple rolling balls 607 move outward from the middle of the sample, and the tapered rod 611 is inserted into the sample to unfold the sample. When the sample is unfolded, the movement of the auxiliary rod 3 and the circular plate 4 is stopped, and the elastic force of the spring 610 can be used to fix the sample; when the circular plate 4 moves downward, the connecting rod 902 is used to drive the shielding door 903 to move downward to close the front side of the fluorescence detection and analysis instrument 1; When it is necessary to automatically adjust the intensity of the excitation light source component 5 according to the fluorescence characteristics of different fiber materials and target substances, the motor 801 is used as a driver to rotate the second gear 807, the rotating shaft 802 and the rotating plate 803, and the first gear 806 is engaged with the second gear 807, thereby driving the adjustment knob 805 to rotate and adjust the brightness of the light source component 5. At the same time, a filter 804 is provided on the rotating plate 803. When adjusting the intensity of the light source component 5, it is automatically adjusted to the corresponding filter 804 moving to the bottom of the stage 7, and automatically adjusted according to the fluorescence characteristics of the sample to maximize the filtering of unnecessary light and ensure accurate fluorescence signal reception.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foreign fiber fluorescence detection and analysis device, comprising a fluorescence detection and analysis instrument (1), characterized in that: A cylinder (2) is fixedly mounted on the top of the fluorescence detection and analysis instrument (1); an auxiliary rod (3) located in the inner cavity of the fluorescence detection and analysis instrument (1) is fixedly mounted on the output end of the cylinder (2); a circular plate (4) is fixedly mounted on the bottom of the auxiliary rod (3); a light source component (5) is fixedly mounted on the bottom of the circular plate (4); and a stage (7) located below the light source component (5) is fixedly mounted on the bottom of the inner cavity of the fluorescence detection and analysis instrument (1) by means of a bracket; The circular plate (4) is provided with a sample unfolding assembly (6), and the sample unfolding assembly (6) comprises a first connecting seat (601), an adjusting plate (602), a second connecting seat (603), a movable groove (604), a movable rod (605) and a rolling ball (607). The first connecting seat (601) is fixedly mounted on the outer side of the auxiliary rod (3), the adjusting plate (602) is rotatably connected to the first connecting seat (601), the circular plate (4) is provided with a movable groove (604), the inner cavity of the movable groove (604) is movably sleeved with the movable rod (605), the top of the movable rod (605) is fixedly mounted with a second connecting seat (603), the second connecting seat (603) is rotatably connected to the bottom of the adjusting plate (602), and the bottom of the movable rod (605) is connected to the rolling ball (607) by means of a buffer assembly.

2. The foreign fiber fluorescence detection and analysis device according to claim 1, characterized in that: The buffer assembly comprises a mounting seat (606), a circular groove (608), a lifting rod (609) and a spring (610). A circular groove (608) is provided at the bottom of the moving rod (605). The inner cavity of the circular groove (608) is movably sleeved with the lifting rod (609). The bottom end of the lifting rod (609) is fixedly mounted with a mounting seat (606). The bottom of the mounting seat (606) is rotatably connected with a rolling ball (607). The outer side of the lifting rod (609) is movably sleeved with a spring (610). The two ends of the spring (610) are respectively fixed to the bottom of the moving rod (605) and the top of the mounting seat (606). A plurality of tapered rods (611) are fixedly mounted at the bottom of the mounting seat (606). The ends of the tapered rods (611) and the center of the rolling ball (607) are located at the same height.

3. The foreign fiber fluorescence detection and analysis device according to claim 1, characterized in that: The circular plate (4) is provided with a plurality of movable grooves (604) and movable rods (605) evenly distributed on the outside of the light source component (5); the plurality of movable grooves (604) are distributed on the circular axis of the circular plate (4).

4. The foreign fiber fluorescence detection and analysis device according to claim 1, characterized in that: The movable rod (605) is composed of two vertical rods and a horizontal rod, and the two ends of the horizontal rod are respectively connected to the two vertical rods.

5. The foreign fiber fluorescence detection and analysis device according to claim 1, characterized in that: The inner cavity of the fluorescence detection and analysis instrument (1) is provided with an intensity adjustment component (8), and the intensity adjustment component (8) comprises a motor (801), a rotating shaft (802), a rotating plate (803), a filter (804), an adjustment knob (805), a first gear (806), and a second gear (807). The motor (801) is fixedly mounted on the top of the inner cavity of the fluorescence detection and analysis instrument (1), the rotating shaft (802) is fixedly mounted on the output end of the motor (801), the rotating plate (803) is fixedly mounted on the bottom end of the rotating shaft (802), the filter (804) is fixedly sleeved on the top of the rotating plate (803), the adjustment knob (805) is fixedly mounted on one side of the top of the circular plate (4), the first gear (806) is fixedly mounted on the top of the adjustment knob (805), the second gear (807) is fixedly sleeved on the outer side of the rotating shaft (802), and the outer teeth of the second gear (807) mesh with the outer teeth of the first gear (806).

6. The foreign fiber fluorescence detection and analysis device according to claim 5, characterized in that: One side of the rotating plate (803) is located between the stage (7) and the bottom of the inner cavity of the fluorescence detection and analysis instrument (1), and a plurality of filters (804) are evenly distributed along the circumference of the rotating plate (803) on the rotating plate (803).

7. The foreign fiber fluorescence detection and analysis device according to claim 5, characterized in that: The adjusting knob (805) is electrically connected to the light source component (5), and the adjusting knob (805) is used to adjust the brightness of the light source component (5).

8. The foreign fiber fluorescence detection and analysis device according to claim 5, characterized in that: The height of the first gear (806) is greater than the distance between the rolling ball (607) and the top of the carrier platform (7).

9. The foreign fiber fluorescence detection and analysis device according to claim 1, characterized in that: A door closing assembly (9) is provided on the front side of the fluorescence detection and analysis instrument (1), and the door closing assembly (9) comprises a slide groove (901), a connecting rod (902) and a shielding door (903). A slide groove (901) is provided on the upper part of the front side of the fluorescence detection and analysis instrument (1), and the shielding door (903) is slidably connected to the inner cavity of the slide groove (901), a connecting rod (902) is fixedly mounted on the front side of the circular plate (4), and the shielding door (903) is fixedly mounted on the front side of the connecting rod (902).

10. The foreign fiber fluorescence detection and analysis device according to claim 1, characterized in that: A connecting plate (10) located below the light source component (5) is fixedly mounted on one side of the moving rod (605) close to the light source component (5); an arc-shaped plate (11) is fixedly mounted on one side of the connecting plate (10); a cleaning cloth (12) is fixedly mounted on the top of the arc-shaped plate (11); and the top of the cleaning cloth (12) is in the same plane as the bottom of the light source component (5).

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