A box type light source module and a cotton foreign fiber removing device comprising the same

Abstract

The application discloses a box-drawing type light source module and a cotton foreign fiber removing device comprising the same, and relates to the field of mechanical equipment for textile industry. The box-drawing type light source module comprises a light box and a light bar. The light box is hollow inside, and the two sides of the light box along the width direction of the light box are both provided with openings. The light bar is detachably installed inside the light box, and the length direction of the light bar is consistent with the length direction of the light box. The light bar is provided with two groups of upper and lower light bars. The two groups of light bars are arranged at intervals, and an observation gap is formed between the two groups of light bars. The observation gap is not blocked in the imaging optical axis direction of the camera. The field of view of the camera passes through the observation gap and the two openings along the width direction of the light box, and covers the to-be-detected area. The light source module creates excellent unobstructed imaging light conditions for the camera through the precise design of the double-light-bar spatial layout and the brightness compensation strategy. Meanwhile, the maintenance efficiency is greatly improved through the modularized drawing structure.

Description

Technical Field

[0001] This application relates to the field of machinery and equipment for the textile industry, and in particular to a drawer-type light source module and a cotton foreign fiber removal device including the module. Background Technology

[0002] To improve yarn quality, the cotton spinning industry typically uses cotton foreign fiber removal equipment (i.e., foreign fiber machines) to remove foreign fibers from cotton. Currently, cotton foreign fiber removal equipment on the market mainly consists of modules such as an optical detection module, an electronic control module, a cleaning module, and installation accessories. The optical detection module includes a camera detection module, a light source module, and an image recognition and processing unit. The light source module provides ultraviolet and visible light (visible light typically refers to natural light or a composite of natural and simulated natural light with wavelengths in the range of 400-760 nanometers, which appears as white light to the naked eye). The light source illuminates the cotton, and the camera detection module captures images of the cotton to identify various foreign fibers within it.

[0003] As the core foundation for foreign fiber detection, the light source module must be designed to accommodate the differences in optical characteristics of different types of foreign fibers to ensure image clarity and recognition accuracy. However, the ultraviolet lamps and white light lamps in the light source module are consumable components. During long-term, high-frequency use, they inevitably experience a decrease in luminous efficiency due to aging and attenuation, and may even malfunction. If the structural design of the light source module does not adequately consider the ease of repair and maintenance, the replacement process for the ultraviolet lamps and white light lamps may be cumbersome and time-consuming. This not only increases equipment downtime and affects production efficiency but may also increase labor costs or the risk of operational errors due to the complexity of the replacement operation.

[0004] Based on the above problems, in order to address the risk of missed detection and high downtime costs caused by light source loss, it is urgent to improve the light source module to make it easier to repair / maintain. Utility Model Content

[0005] To address the risk of missed detections and high downtime costs caused by light source loss in cotton foreign fiber removal equipment, and to improve the convenience of light source module repair and daily maintenance, this application provides a box-type light source module and cotton foreign fiber removal equipment containing the module.

[0006] Firstly, this application provides a pull-out type light source module. The pull-out type light source module adopts the following technical solution: A pull-out type light source module includes a light box and light strips. The light box is hollow inside and has openings on both sides along its width. The light strips are detachably installed inside the light box, and the length direction of the light strips is consistent with the length direction of the light box. The light strips are arranged in two sets, upper and lower, with the two sets of light strips spaced apart. An observation gap is formed between the two sets of light strips, and this observation gap is unobstructed in the imaging optical axis direction of the camera. The camera's field of view passes through the observation gap and the two openings along the width direction of the light box, covering the area to be detected.

[0007] By adopting the above technical solution, the upper and lower sets of light strips are symmetrically arranged, which can supplement the detection area from two directions, canceling the shadows formed by unilateral illumination, making the color and fluorescence differences between foreign fibers and cotton more obvious. At the same time, the observation gap formed by the interval between the two sets of light strips is unobstructed in the direction of the camera's imaging optical axis. Combined with the openings on both sides of the light box, it ensures that the camera's field of view can directly cover the area to be detected, avoiding the light source structure from blocking the light or image, providing a clear and complete visual basis for foreign fiber identification, and reducing missed detections caused by blind spots. By detachably installing the light strips in the light box, combined with the pull-out box structure, the replacement, cleaning or maintenance of the light strips can be completed quickly, reducing equipment downtime and adapting to the high-frequency maintenance needs of the high-dust environment in cotton spinning workshops.

[0008] Furthermore, the light strip includes a mounting profile and LED beads disposed on the mounting profile. Multiple LED beads are provided, and the multiple LED beads extend along the length direction of the mounting profile to form a straight light strip. The mounting profile is detachably and fixedly installed inside the light box. When the light strip is fixedly installed inside the light box, the length direction of the light strip is consistent with the length direction of the light box.

[0009] By adopting the above technical solution, on the one hand, the mounting profile provides rigid support for the LED beads, ensuring the straightness of the light strip and the stability of the LED bead spacing; on the other hand, the mounting profile is detachably fixed inside the light box, and the LED beads are integrated into the profile to form an independent light strip module. When the LED beads are damaged, experience light decay, or require cleaning, the entire light strip can be disassembled for repair or replacement without disassembling the entire light box, significantly shortening maintenance time, and is especially suitable for the rapid maintenance needs under the high-frequency use of cotton spinning workshops.

[0010] Furthermore, the lamp beads include white light lamp beads and purple light lamp beads. Multiple white light lamp beads constitute a white light strip, and multiple purple light lamp beads constitute a purple light strip. The purple light strip is located on the side of the mounting profile close to the center line of the light box, and the width of the white light strip is wider than the width of the purple light strip.

[0011] By adopting the above technical solutions, the white light strip and the purple light strip can respectively produce uniform, continuous white light strips and purple light strips without obvious dark areas during operation. The white light strip provides full-spectrum, high color rendering basic illumination, highlighting the color differences between dark and colored foreign fibers and cotton. The purple light strip can excite the fluorescence properties of foreign fibers to adapt to the shape of the cotton conveying channel in the cotton foreign fiber removal equipment, ensuring that the cotton flow in the conveying channel is uniformly illuminated during transmission.

[0012] Furthermore, the multiple white LED beads are evenly arranged in multiple rows along the width direction of the mounting profile.

[0013] By adopting the above technical solution, the multi-row white light bulbs have a wider coverage width, which is conducive to adapting to the speed of cotton flow processing by cotton foreign fiber removal equipment, covering the cross section of the cotton flow, and providing basic lighting more effectively.

[0014] Furthermore, the density of white LED beads in the middle of the mounting profile is less than the density of white LED beads at both ends of the mounting profile.

[0015] By adopting the above technical solution, it is beneficial to reduce the impact of shadows / dark corners formed by the light box itself and the two side walls along the width direction of the cotton conveying channel on the images captured by the camera, ensuring that the images captured by the camera in the area to be detected are clear throughout, and avoiding detection deviations caused by uneven brightness.

[0016] Furthermore, a heat dissipation structure is fixedly connected to the side of the mounting profile away from the LED bead. The heat dissipation structure includes a heat dissipation base plate and a heat dissipation fin. The heat dissipation fin is located on one side of the heat dissipation base plate and is fixedly connected to the heat dissipation base plate. The side of the mounting profile away from the LED bead abuts against the side of the heat dissipation base plate away from the heat dissipation fin, and the surfaces of the two are in contact.

[0017] By adopting the above technical solution, the mounting profile fits snugly against the heat dissipation base plate, directly transferring the heat generated by the LED chips to the base plate and preventing heat accumulation near the chips. The heat sink is fixed to the base plate, further increasing the heat dissipation area, effectively reducing the LED chip's operating temperature, mitigating light decay and color temperature shift, and extending the chip's lifespan.

[0018] Furthermore, a C-shaped cover plate is fixedly connected to the side of the mounting profile away from the LED bead. The two sides of the cover plate abut against the two sides of the mounting profile along the width direction. The cover plate and the mounting profile together form a hollow heat dissipation channel. A cooling fan for drawing heat from the heat dissipation channel is installed at one end of the LED strip.

[0019] By adopting the above technical solution, through the cooperation of cover plate, mounting profile, heat dissipation base plate and heat sink, a forced convection circulation can be formed: "air is drawn in from one end of the heat dissipation channel with a heat dissipation fan → cold air flows through the back of the light strip → hot air is discharged from the other end of the heat dissipation channel". This avoids the problem of airflow dispersion when the fan works alone, and allows cold air to flow more evenly and efficiently through the entire back of the light strip, carrying away the heat generated by the aluminum profile and the LED beads.

[0020] Furthermore, a ball bearing structure is installed on both the top plate and the bottom plate. The ball bearing structure includes a ball bearing frame and balls. The ball bearing frame is fixedly connected to the top plate or the bottom plate. The balls are rotatably installed in the ball bearing frame and extend out of the surface of the top plate or the bottom plate.

[0021] By adopting the above technical solution, the friction between the light box and the external mounting structure is reduced, making it easier for operators to disassemble and assemble the light box with less effort.

[0022] Secondly, this application provides a cotton foreign fiber removal device. This cotton foreign fiber removal device, based on the aforementioned drawer-type light source module, adopts the following technical solution: A cotton foreign fiber removal device includes a machine body and a cotton conveying channel, an optical detection module, a foreign cotton output channel, a foreign cotton removal module, and an electrical control module installed on the machine body. The machine body includes a main frame and two sets of support legs for supporting the main frame. The cotton conveying channel runs through the main frame from bottom to top and is fixedly connected to the main frame. The width direction of the cotton conveying channel is consistent with the width direction of the main frame. The optical detection module includes a pull-out light source module, a camera detection module, and an image recognition processing unit. The main frame has light box mounting openings on both sides or any one side along its width direction. A light box mounting channel connected to the light box mounting openings is fixedly provided inside the main frame. The pull-out light source module is detachably installed on the main frame through the light box mounting openings and the light box mounting channel.

[0023] By adopting the above technical solution and using a pull-out, detachable design for installing the light source module and the main frame, operators can quickly disassemble, clean, or replace the light strips, reducing equipment downtime.

[0024] Furthermore, the light box mounting channel includes two sets of light box receiving plates arranged opposite each other, and a straight mounting groove is formed on the inner side of the light box receiving plate along its length direction, the width of the mounting groove matching the width of the light box.

[0025] By adopting the above technical solution, the rolling friction between the ball bearing and the top or bottom plate of the light box replaces the sliding friction between the light box receiving plate and the top or bottom plate of the light box, thereby reducing the frictional resistance during the installation and disassembly of the light box, so that operators can quickly install the light source module onto / remove it from the equipment.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The light source module in this application has its light strips detachably installed in the light box. Combined with the pull-out structure design of the light box, it can be quickly disassembled and assembled with ease and effort, without disassembling the whole equipment, which greatly shortens the maintenance time and is suitable for the maintenance needs of cotton spinning workshops with high dust and high frequency of use. 2. White light strips can provide full-spectrum illumination to highlight the color differences of foreign fibers, while purple light strips excite the fluorescent properties of foreign fibers. The symmetrical arrangement of two sets of light strips cancels the shadows of the light strips and the cotton flow itself. Combined with the design of differential density of light beads, it can effectively avoid detection deviation caused by uneven light source brightness, and provide a clear foundation for image recognition of camera detection module and image recognition processing unit. 3. The light strip is composed of multiple evenly arranged LED beads. When a single LED bead is damaged, it is easy to locate and replace the damaged LED bead. 4. By combining the heat dissipation base plate, heat sink, cover plate and cooling fan, a forced convection circulation can be formed: "air is drawn in from the end of the heat dissipation channel with the cooling fan → cold air flows through the back of the light strip → hot air is discharged from the other end of the heat dissipation channel". This avoids the problem of airflow dispersion when the fan works alone, and allows cold air to flow more evenly and efficiently through the entire back of the light strip, carrying away the heat generated by the aluminum profile and the LED beads, achieving efficient cooling of the light source module, extending the life of the LED beads and ensuring the stability of the illumination. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of a box-type light source module in an embodiment of this application; Figure 2 This is a schematic diagram of the overall structure of the light box and cooling fan; Figure 3 This is a partial front view schematic diagram of a box-type light source module in an embodiment of this application. Figure 4This is a schematic diagram of the overall structure of the light strip and heat dissipation structure in the embodiments of this application; Figure 5 This is an exploded view of the light strip, heat sink base plate, and cover plate in an embodiment of this application; Figure 6 yes Figure 2 An enlarged schematic diagram of part A in the middle; Figure 7 This is a schematic diagram of the overall structure of a cotton foreign fiber removal device according to an embodiment of this application; Figure 8 This is a schematic diagram of the overall structure of the device shown in this application embodiment, illustrating the state of the box-type light source module being extracted from the cotton foreign fiber removal device. Figure 9 This is a partial structural cross-sectional view of the body in an embodiment of this application; Figure 10 and Figure 11 These are assembly diagrams of the pull-out light source module and the light box mounting plate from different angles.

[0029] Attached reference numerals: 1. Lightbox; 11. Back panel; 12. Top panel; 13. Bottom panel; 14. Left side panel; 15. Right side panel; 16. Pull-out handle; 17. Heat dissipation hole; 2. Light strip; 21. Mounting profile; 22. White LED bead; 23. Purple LED bead; 3. Heat dissipation structure; 31. Heat dissipation base plate; 32. Heat sink; 33. Cover plate; 4. Cooling fan; 5. Ball bearing structure; 51. Ball bearing frame; 52. Ball bearing; 6. Machine body; 61. Main frame; 611. Inspection window; 612. Lightbox receiving plate; 613. Limiting plate; 62. Support leg; 7. Cotton conveying channel; 71. Observation window; 8. Optical detection module; 81. Camera detection module; 82. Pull-out light source module; 9. Miscellaneous cotton output channel. Detailed Implementation

[0030] To make the purpose, technical solution, and advantages of this application clearer, the following description is provided in conjunction with the appendix. Figures 1-11 The present application will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the application.

[0031] like Figures 1-6 As shown, according to one aspect of this application, a drawer-type light source module is provided, which is applied in a cotton foreign fiber removal device to provide ultraviolet light and visible light (visible light usually refers to natural light or composite light simulating natural light with wavelengths in the range of 400-760 nanometers, which is mostly white light to the naked eye) to illuminate the cotton.

[0032] Reference Figure 1 and Figure 2A pull-out type light source module includes a light box 1 and a light strip 2. In this embodiment, the light box 1 serves as a supporting structure for the light strip 2. The light box 1 is preferably a rectangular box structure with a hollow interior and openings on both sides along its width. The light strip 2 serves as a light source to provide ultraviolet and visible light illumination. The light strip 2 is detachably installed inside the light box 1, and its length direction is consistent with the length direction of the light box 1.

[0033] Specifically, the lightbox 1 includes a back panel 11 and a top panel 12, a bottom panel 13, a left side panel 14, and a right side panel 15 located on one side of the back panel 11. The back panel 11, top panel 12, bottom panel 13, left side panel 14, and right side panel 15 are preferably rectangular plates. The back panel 11 has an opening in the middle. The top panel 12, left side panel 14, bottom panel 13, and right side panel 15 are sequentially fixedly connected and enclosed to form a hollow lightbox shell 1 with openings at both ends. The top panel 12, bottom panel 13, left side panel 14, and right side panel 15 are fixedly connected to the back panel 11, preferably by welding or threaded fastening, to form a stable and strongly supportive structure. The camera can observe from the side of the lightbox 1 with the back panel 11 towards the side of the lightbox 1 with the top panel 12, left side panel 14, bottom panel 13, and right side panel 15.

[0034] Reference Figure 2 and Figure 3 The light strip 2 is provided in two sets, upper and lower, with the two sets of light strip 2 arranged alternately. The two sets of light strip 2 are symmetrical with respect to the central axis of the light box 1 along the length direction. The two sets of light strip 2 form an observation gap for the camera or staff to observe. This observation gap is unobstructed in the direction of the camera's imaging optical axis. The camera's field of view can pass through the two openings on the light box 1 along the width direction and the observation gap and cover the area to be detected.

[0035] Furthermore, refer to Figure 4 and Figure 5 In a preferred embodiment of this application, the light strip 2 includes a mounting profile 21 and LED beads disposed on the mounting profile 21.

[0036] The mounting profile 21 is preferably a rectangular, long strip of aluminum profile. The mounting profile 21 is detachably and fixedly installed inside the light box 1, and its length direction is consistent with the length direction of the light box 1. Compared to other materials (such as plastic or copper profiles), aluminum profiles have high thermal conductivity and corrosion resistance, and also possess advantages such as lightweight, impact resistance, and deformation resistance. It has comprehensive advantages in heat dissipation, strength, adaptability, and cost. As the carrier of the light strip 2 in the light source module, the aluminum mounting profile 21 is particularly suitable for the high requirements of stability and durability of cotton fiber removal equipment in the textile industry production environment. Multiple LED beads are provided, forming a straight light strip along the length of the mounting profile 21.

[0037] Furthermore, refer to Figure 4 and Figure 5 To meet the illumination requirements of the light source module, the LEDs specifically include white LEDs 22 and purple LEDs 23. The white LEDs 22 are used to provide the aforementioned visible light, and the purple LEDs 23 are used to provide ultraviolet light. Multiple white LEDs 22 are evenly distributed along the length of the mounting profile 21 and together with the mounting profile 21 form a white LED strip. Multiple purple LEDs 23 are evenly distributed along the length of the mounting profile 21 and together with the mounting profile 21 form a purple LED strip. Since the LEDs are evenly distributed along a straight line and the illumination ranges of adjacent LEDs overlap, the white LED strip and the purple LED strip can respectively produce uniform, continuous white strip light and purple strip light without obvious dark areas when working.

[0038] When the light strip 2 is fixedly installed inside the light box 1, the length directions of both the white light strip and the purple light strip are consistent with the length direction of the light box 1. When working, the white light strip provides full-spectrum, high color rendering basic lighting to highlight the color difference between dark and colored foreign fibers and cotton. The purple light strip can excite the fluorescence characteristics of foreign fibers to adapt to the shape of the cotton conveying channel 7 in the cotton foreign fiber removal equipment, ensuring that the cotton flow in the cotton conveying channel 7 is evenly illuminated during the transmission process.

[0039] Furthermore, in a preferred embodiment of this application, combined with Figure 3 and Figure 5 The number of white LED beads 22 is greater than the number of ultraviolet LED beads 23. Multiple white LED beads 22 are evenly arranged in multiple rows along the width of the mounting profile 21. The width of the white LED strip is wider than the width of the ultraviolet LED strip to accommodate the speed at which the cotton foreign fiber removal equipment processes the cotton flow, covering the cross-section of the cotton flow and providing uniform basic lighting. When the LED strip 2 is fixedly installed inside the light box 1, the ultraviolet LED strip is located on the side of the mounting profile 21 closest to the center line of the light box 1. Compared to the white LED strip, the ultraviolet LED strip is closer to the center line of the light box 1, allowing the ultraviolet LED strip to be closer to the imaging optical axis of the camera, shortening the propagation path of the fluorescence signal from the foreign fiber to the camera lens, reducing ultraviolet light dispersion, and enabling the camera to capture the fluorescence signal more efficiently.

[0040] Furthermore, in a preferred embodiment of this application, the density of white LED beads 22 in the middle of the mounting profile 21 is less than the density of white LED beads 22 at both ends of the mounting profile 21 (not shown in the figure), so as to reduce the influence of the shadows / dark corners formed by the light box 1 itself and the two side walls of the cotton conveying channel 7 along the width direction on the images captured by the camera, ensuring that the images captured by the camera in the area to be detected are clear throughout, and avoiding detection deviations caused by uneven brightness.

[0041] Furthermore, in the multi-row white LED beads 22, any two adjacent rows of white LED beads 22 can be arranged longitudinally and laterally along the length and width directions of the mounting profile 21, or they can be staggered along the length of the mounting profile 21. Based on the aforementioned configuration, on the one hand, the white LED beads 22 have a strong regularity in position, resulting in high automated placement efficiency and improving production efficiency; on the other hand, when one or more LED beads are damaged, they are easy to locate and replace.

[0042] Furthermore, refer to Figure 4 and Figure 5 The mounting profile 21 has a heat dissipation structure 3 on the side away from the lamp bead to enhance the heat dissipation efficiency of the lamp strip 2, and a cooling fan 4 is installed at one end of the lamp strip 2 to draw heat from the heat dissipation channel.

[0043] The heat dissipation structure 3 includes a heat dissipation base plate 31 and a heat sink 32. Both the heat dissipation base plate 31 and the heat sink 32 are preferably rectangular plates. The heat dissipation base plate 31 and the heat sink 32 are preferably made of copper or aluminum alloy (high thermal conductivity). The mounting profile 21 and the heat dissipation base plate 31 are attached to each other and fixed by bolts or other threaded parts. The heat sink 32 is located on the side of the heat dissipation base plate 31 away from the mounting profile 21, and the heat sink 32 is fixedly connected to the heat dissipation base plate 31 (in the preferred embodiment of this application, the heat sink 32 and the heat dissipation base plate 31 are an integral structure). The side of the mounting profile 21 away from the lamp bead abuts against the side of the heat dissipation base plate 31 away from the heat sink 32, and the surfaces of the two are in contact. The surface area of ​​the heat dissipation base plate 31 is larger than the surface area of ​​the mounting profile 21.

[0044] On the one hand, when the light strip 2 is working, the heat generated by the white LED beads 22 and the purple LED beads 23 is mainly conducted to the surface through the aluminum profile lamp holder. However, the surface area of ​​the aluminum profile itself is limited. After the heat dissipation base plate 31 is tightly attached to the aluminum mounting profile 21, the heat of the light strip 2 can be quickly conducted to the entire heat dissipation base plate 31 through direct contact. Utilizing the larger surface area of ​​the heat dissipation base plate 31 in contact with the air, the heat is dissipated naturally, reducing the working temperature of the LED beads and effectively alleviating light decay and color temperature shift. On the other hand, the cotton fiber removal equipment may vibrate during operation. If the light strip 2 is fixed only by its own aluminum profile, long-term vibration may cause the LED bead solder joints to loosen or the circuit to have poor contact. After the heat dissipation base plate 31 is attached and fixed to the aluminum mounting profile 21, the two are fastened to the equipment frame as a whole, enhancing the installation stability of the light strip 2. This helps to reduce the impact of vibration on the light source module and reduce the risk of failure due to mechanical loosening.

[0045] Furthermore, refer to Figure 4 and Figure 5 A C-shaped cover plate 33 is fixedly connected to the side of the mounting profile 21 away from the LED. The two sides of the cover plate 33 abut against the two sides of the mounting profile 21 along the width direction. The cover plate 33 and the mounting profile 21 enclose each other to form a long strip heat dissipation channel with open ends and hollow inside. The length extension direction of the heat dissipation channel is consistent with the length direction of the mounting profile 21. The heat sink 32 is located inside the heat dissipation channel.

[0046] As the LED strip 2 and cooling fan 4 operate, the heat dissipation channel provides a closed and directional flow path for airflow. Together with the cooling fan 4 at one end, a forced convection circulation can be formed: "air enters from the opening of the heat dissipation channel with the cooling fan 4 and cold air is drawn in → cold air flows through the back of the LED strip 2 → hot air is discharged from the opening of the other end of the heat dissipation channel." This avoids the problem of airflow dispersion when the fan operates alone, allowing cold air to flow evenly and efficiently across the entire back of the LED strip 2, carrying away the heat generated by the aluminum profile and LED beads. The heat dissipation efficiency is significantly improved compared to the cooling fan 4 operating alone or the heat dissipation base plate 31 being set alone. At the same time, during this process, the heat sink 32 effectively increases the contact area between the LED strip 2 and the cooling airflow, allowing the heat generated by the LED beads to be better dissipated through heat transfer, thereby increasing the cooling speed and better ensuring the temperature stability of the LED strip 2.

[0047] Furthermore, refer to Figure 6 Multiple heat dissipation holes 17 are provided on the top plate 12, bottom plate 13 and back plate 11 to enhance the heat exchange between the light source module and the external environment and further improve heat dissipation efficiency.

[0048] Furthermore, to facilitate the disassembly and assembly of the light source module, a pull handle 16 is fixedly connected to the outer side of the right side plate 15 of the light box 1. A ball bearing structure 5 is installed on both the top plate 12 and the bottom plate 13. The ball bearing structure 5 includes a ball bearing frame 51 and a ball bearing 52. The ball bearing frame 51 is fixedly connected to the top plate 12 or the bottom plate 13. The ball bearing 52 is rotatably installed in the ball bearing frame 51 and extends out of the surface of the top plate 12 or the bottom plate 13.

[0049] In summary, the implementation principle of the pull-out light source module in this application embodiment is as follows: On the one hand, the light source module, through a precisely designed dual-light source spatial layout (wide coverage of white light + paraxial violet light) and brightness compensation strategy, creates excellent unobstructed imaging lighting conditions for the camera; combined with the thermal conductivity of the aluminum mounting profile 21, the large-area heat dissipation base plate 31, the reinforcement of the heat sink 32, and the three-stage heat dissipation system of the cooling fan 4 and the forced convection of the heat dissipation channel, it ensures that the light source can work stably for a long time in the harsh environment of the textile factory and slows down light decay. On the other hand, through its modular pull-out structure and ball bearing 52 guide rail structure design, the module can be quickly disassembled and assembled, greatly improving maintenance efficiency.

[0050] like Figures 7-11 As shown, based on the aforementioned box-type light source module 82, according to another aspect of this application, this application provides a cotton foreign fiber removal device, which is generally installed after the cotton cleaning machine in the cotton cleaning workshop, for online detection and removal of foreign fiber impurities in cotton.

[0051] Specifically, refer to Figure 7 and Figure 8 The cotton foreign fiber removal device in this application includes a body 6 and a cotton conveying channel 7, an optical detection module 8, a foreign cotton output channel 9, a foreign fiber removal module, and an electrical control module installed on the body 6.

[0052] The machine body 6 includes a main frame 61 and two sets of support legs 62 for supporting the main frame 61. The cotton conveying channel 7 runs through the main frame 61 from bottom to top and is fixedly connected to the main frame 61. The cotton conveying channel 7 is preferably a rectangular channel with a lower opening as its feed port and an upper opening as its discharge port. The width direction of the cotton conveying channel 7 is consistent with the width direction of the main frame 61. It is used to connect to the production line of the cotton mill, so that the cotton flow in the production line can enter the cotton foreign fiber removal equipment for foreign fiber detection, and the detected cotton flow can be transported to the next process on the cotton mill production line.

[0053] Reference Figure 9The optical detection module 8 includes a camera detection module 81, an image recognition processing unit, and a box-type light source module 82 as described above. A detection area is provided on the cotton conveying channel 7. The cotton conveying channel 7 at the detection area is equipped with a transparent observation window 71 through which light from the box-type light source module 82 can pass and for observation by the camera detection module 81. The camera detection module 81, image recognition processing unit, and box-type light source module 82 are all located outside the cotton conveying channel 7. The camera lens in the camera detection module 81 can monitor the cotton flow in the cotton conveying channel 7 and capture images of the object to be detected (generally the cotton flow) within the cotton conveying channel 7 through the observation window 71. The box-type light source module 82 provides a light source, illuminating the cotton flow in the detection area of ​​the cotton conveying channel 7 through the observation window 71. The camera detection module 81 acquires images of the cotton flow in the detection area of ​​the cotton conveying channel 7 in real time and transmits the acquired cotton flow images to the image recognition processing unit for processing. The image recognition processing unit detects and identifies various foreign fibers in the cotton flow.

[0054] The impurity output channel 9 and the impurity removal module are located at the rear end of the optical detection module 8. The impurity output channel 9 is connected to the cotton conveying channel 7. The impurity removal module can knock out the foreign fibers detected by the optical detection module 8 from the cotton conveying channel 7 and output them to the outside of the equipment through the impurity output channel 9.

[0055] Furthermore, looking back Figure 7 and Figure 8 To address the risk of missed detection and high downtime costs caused by light source loss in cotton foreign fiber removal equipment, and to improve the convenience of light source module maintenance and daily upkeep, the main frame 61 is provided with a light box mounting port through both sides or any side along its width direction. The light box mounting port is equipped with an inspection window 611 for opening and closing the light box mounting port. The main frame 61 is fixedly provided with a light box mounting channel connected to the light box mounting port. The pull-out light source module 82 can be detachably installed on the main frame 61 through the light box mounting port and the light box mounting channel.

[0056] Combination Figure 10 and Figure 11The light box mounting channel includes two sets of light box receiving plates 612 arranged vertically opposite each other. A straight mounting groove is formed along the length of the inner side of each light box receiving plate 612, the width of which matches the width of the top plate 12 and bottom plate 13 of the light box 1. Multiple sets of ball bearing structures 5, as described above, are further installed on the inner wall of the mounting groove on the light box receiving plate 612. The balls 52 in these ball bearing structures are located within the mounting groove and can abut against the top plate 12 or bottom plate 13 of the light box 1. The light box 1 is slidably connected to the light box mounting channel through these multiple sets of ball bearing structures 5. The rolling friction between the balls 52 and the top plate 12 or bottom plate 13 of the light box 1 replaces the sliding friction between the light box receiving plate 612 and the top plate 12 or bottom plate 13 of the light box 1, reducing the frictional resistance during the installation and removal of the light box 1, allowing operators to quickly install / remove the light source module from the equipment.

[0057] Furthermore, a limiting plate 613 for limiting the position of the light box 1 is detachably fixed at the light box mounting port on either side of the main frame 61. The side wall of the light box 1 without the pull handle 16 is adapted to abut against the limiting plate 613. The side wall of the light box 1 with the pull handle 16 has a threaded hole corresponding to and connected to the position of the light box receiving plate 612 or the main frame 61. The operator can use the threaded parts to further fix the light box 1 and the limiting plate 613. When installing the pull-out light source module, the operator can hold the pull handle 16 of the light box 1 and slide the light box 1 through the light box mounting port on the other side of the main frame 61 (i.e., the side without the limiting plate 613) onto the light box mounting channel. The limiting plate 613 is used to limit the position of the light box 1 and the main frame 61, so that the light box 1 is installed in the corresponding working position. The threaded parts are then used to lock and fix the light box 1 and the main frame 61.

[0058] When the cotton foreign fiber removal equipment experiences problems such as damaged LED beads, light attenuation, or reduced luminous efficiency, the operator can open the inspection window 611, unscrew the threaded part between the light box 1 and the limit plate 613, hold the pull handle 16 on the light box 1, and pull the light box 1 out of the light box installation channel. The overall installation and disassembly process is relatively simple and easy to operate, which effectively improves the convenience of light source module maintenance and daily maintenance, thereby reducing the risk of missed detection and high downtime costs caused by light source loss in the cotton foreign fiber removal equipment.

[0059] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, but do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0060] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A box-type light source module, characterized in that: The device includes a light box (1) and light strips (2). The light box (1) is hollow inside and has openings on both sides along its width direction. The light strips (2) are detachably installed inside the light box (1). The length direction of the light strips (2) is consistent with the length direction of the light box (1). The light strips (2) are provided in two sets, upper and lower, with the two sets of light strips (2) arranged at intervals. An observation gap is formed between the two sets of light strips (2), and the observation gap is unobstructed in the imaging optical axis direction of the camera. The field of view of the camera passes through the observation gap and the two openings along the width direction of the light box (1) and covers the area to be detected.

2. The box-type light source module according to claim 1, characterized in that: The light strip (2) includes a mounting profile (21) and LED beads disposed on the mounting profile (21). Multiple LED beads are provided, and the multiple LED beads form a straight light strip along the length extension direction of the mounting profile (21). The mounting profile (21) is detachably and fixedly installed inside the light box (1). When the light strip (2) is fixedly installed inside the light box (1), the length direction of the light strip is consistent with the length direction of the light box (1).

3. A box-type light source module according to claim 2, characterized in that: The lamp beads include white light lamp beads (22) and purple light lamp beads (23). Multiple white light lamp beads (22) form a white light strip, and multiple purple light lamp beads (23) form a purple light strip. The purple light strip is located on the side of the mounting profile (21) near the center line of the light box (1). The width of the white light strip is wider than the width of the purple light strip.

4. A box-type light source module according to claim 3, characterized in that: Multiple white LED beads (22) are evenly arranged in multiple rows along the width direction of the mounting profile (21).

5. A box-type light source module according to claim 4, characterized in that: The density of white LED beads (22) in the middle of the mounting profile (21) is less than the density of white LED beads (22) at both ends of the mounting profile (21).

6. A box-type light source module according to any one of claims 2-5, characterized in that: The mounting profile (21) is fixedly connected to a heat dissipation structure (3) on the side away from the LED bead. The heat dissipation structure (3) includes a heat dissipation base plate (31) and a heat sink (32). The heat sink (32) is located on one side of the heat dissipation base plate (31) and is fixedly connected to the heat dissipation base plate (31). The side of the mounting profile (21) away from the LED bead abuts against the side of the heat dissipation base plate (31) away from the heat sink (32), and the surfaces of the two are in contact.

7. A box-type light source module according to claim 6, characterized in that: A C-shaped cover plate (33) is fixedly connected to the side of the mounting profile (21) away from the lamp bead. The two sides of the cover plate (33) abut against the two sides of the mounting profile (21) along the width direction. The cover plate (33) and the mounting profile (21) enclose a hollow heat dissipation channel. A cooling fan (4) for drawing heat from the heat dissipation channel is installed at one end of the lamp strip (2).

8. A box-type light source module according to claim 6, characterized in that: The light box (1) includes a back panel (11) and a top panel (12), a bottom panel (13), a left side panel (14) and a right side panel (15) disposed on one side of the back panel (11). A ball bearing structure (5) is installed on both the top panel (12) and the bottom panel (13). The ball bearing structure (5) includes a ball bearing frame (51) and a ball bearing (52). The ball bearing frame (51) is fixedly connected to the light box (1). The ball bearing (52) is rotatably installed in the ball bearing frame (51) and extends out of the outer wall surface of the light box (1).

9. A cotton foreign fiber removal device, based on a drawer-type light source module (82) as described in any one of claims 1-8, characterized in that: The system includes a machine body (6) and a cotton conveying channel (7), an optical detection module (8), a waste cotton output channel (9), a waste removal module, and an electronic control module installed on the machine body (6). The machine body (6) includes a main frame (61) and two sets of support legs (62) for supporting the main frame (61). The cotton conveying channel (7) runs through the main frame (61) from bottom to top and is fixedly connected to the main frame (61). The width of the cotton conveying channel (7) is the same as the width of the main frame (61). The optical detection module (8) includes a box-type light source module (82), a camera detection module (81), and an image recognition processing unit. The main frame (61) has a light box mounting port through both sides or any one side along its width direction. The main frame (61) has a fixed light box mounting channel connected to the light box mounting port. The box-type light source module (82) can be detachably installed on the main frame (61) through the light box mounting port and the light box mounting channel.

10. A cotton foreign fiber removal device according to claim 9, characterized in that: The light box mounting channel includes two sets of light box support plates (612) arranged opposite each other. The inner side of the light box support plate (612) is provided with a straight mounting groove along its length direction. The width of the mounting groove matches the width of the light box (1).

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